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WO2024169215A1 - 断路器 - Google Patents

断路器 Download PDF

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Publication number
WO2024169215A1
WO2024169215A1 PCT/CN2023/125270 CN2023125270W WO2024169215A1 WO 2024169215 A1 WO2024169215 A1 WO 2024169215A1 CN 2023125270 W CN2023125270 W CN 2023125270W WO 2024169215 A1 WO2024169215 A1 WO 2024169215A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact
contact structure
circuit breaker
support
thermal
Prior art date
Application number
PCT/CN2023/125270
Other languages
English (en)
French (fr)
Inventor
卢科军
顾翔翼
杨安
周长青
付浩
Original Assignee
上海正泰智能科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202310135654.4A external-priority patent/CN118522616A/zh
Priority claimed from CN202310135688.3A external-priority patent/CN118522611A/zh
Application filed by 上海正泰智能科技有限公司 filed Critical 上海正泰智能科技有限公司
Publication of WO2024169215A1 publication Critical patent/WO2024169215A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/18—Means for extinguishing or suppressing arc

Definitions

  • the invention relates to the field of low-voltage electrical appliances, and in particular to a circuit breaker.
  • the internal layout of the existing circuit breaker results in limited installation space for the arc extinguishing chamber, which cannot accommodate arc extinguishing chambers of larger specifications, thus affecting the arc extinguishing and breaking capabilities of the circuit breaker; and the contact system of the existing circuit breaker cannot significantly increase the opening distance due to the internal space limitation of the circuit breaker, which limits the improvement of the breaking capacity of the circuit breaker.
  • the object of the present invention is to overcome at least one defect of the prior art and to provide a circuit breaker with a more reasonable internal layout, thereby providing a larger assembly space for the arc extinguishing chamber.
  • a circuit breaker comprises a circuit breaker housing and an operating mechanism, a contact system, an incoming terminal, an outgoing terminal, an arc extinguishing chamber and a thermal magnetic tripping mechanism arranged in the circuit breaker housing;
  • the contact system comprises a first contact structure and a second contact structure which are arranged to rotate synchronously;
  • the operating member of the operating mechanism, the contact system and the arc extinguishing chamber are arranged in sequence;
  • the incoming terminal and the outgoing terminal are located at both ends of the circuit breaker, the contact system and the arc extinguishing chamber are located between the incoming terminal and the outgoing terminal, the contact system and the arc extinguishing chamber are located on one side of the thermal-magnetic tripping mechanism, the incoming terminal or the outgoing terminal is located on the other side of the thermal-magnetic tripping mechanism, and the first contact structure and the second contact structure are arranged side by side.
  • the incoming terminal, the first contact structure, the second contact structure and the outgoing terminal are arranged side by side in sequence in the length direction of the circuit breaker; the arc inlet of the arc extinguishing chamber is relatively matched with the disconnection interval formed by the disconnection of the first contact structure and the second contact structure and faces the operating part.
  • the operating mechanism also includes a main connecting rod, a trip latch and a lock latch
  • the first contact structure includes a first support and a first contact
  • the first support is pivotally arranged in the circuit breaker housing
  • the first contact is arranged on the first support and rotates synchronously with the first support under the drive of the first support
  • the trip latch and the lock latch are respectively pivotally arranged on the first support and snap-fitted
  • the two ends of the main connecting rod are respectively hinged to the operating part and the trip latch part.
  • the operating mechanism also includes a coupling rocker, and the coupling rocker and the lock are arranged to rotate synchronously with the same shaft.
  • the coupling rocker and the lock are located on both sides of the first support; the thermal-magnetic tripping mechanism includes a thermal tripping structure and a magnetic tripping structure.
  • the thermal tripping structure is used to drive the lock to rotate through the coupling rocker to release the snap fit with the tripping buckle when an overload fault occurs in the circuit where the circuit breaker is located, and the magnetic tripping structure is used to directly drive the lock to rotate to release the snap fit with the tripping buckle when a short circuit fault occurs in the circuit where the circuit breaker is located; when multiple circuit breakers are arranged in parallel, among two adjacent circuit breakers, the lock of one circuit breaker is driven and connected to the coupling rocker of the other circuit breaker.
  • the thermal-magnetic tripping mechanism includes a thermal tripping structure for driving the operating mechanism to trip when an overload fault occurs in the circuit where the circuit breaker is located, and a magnetic tripping structure for driving the operating mechanism to trip when a short circuit fault occurs in the circuit where the circuit breaker is located.
  • the thermal tripping structure and the magnetic tripping structure are arranged side by side in the height direction of the circuit breaker.
  • the thermal tripping structure is located between the contact system and the incoming terminal or the outgoing terminal, and the magnetic tripping structure is located between the arc extinguishing chamber and the incoming terminal or the outgoing terminal.
  • the circuit breaker also includes an arc striking plate electrically connected to the outlet terminal and located between the outlet terminal and the arc extinguishing chamber in the length direction of the circuit breaker.
  • the thermal-magnetic tripping mechanism also includes a pivotally arranged thermal tripping transmission member, the thermal tripping structure includes a double-metal component, and the thermal tripping transmission member is located between the operating mechanism and the double-metal component.
  • the thermal-magnetic tripping mechanism also includes a pivotally arranged magnetic tripping transmission member
  • the magnetic tripping structure is a snap-on electromagnetic tripping device, which includes a pivotally arranged armature, and the magnetic tripping transmission member is located between the operating mechanism and the armature; the rotation centers of the lock of the operating mechanism, the magnetic tripping transmission member and the thermal tripping transmission member are respectively located at the three vertices of a triangle.
  • the thermal magnetic tripping mechanism also includes a pivotally arranged magnetic tripping transmission member, the magnetic tripping structure is a direct-acting electromagnetic tripping device, the magnetic tripping transmission member is located between the operating mechanism and the magnetic tripping structure, one end of the magnetic tripping transmission member is in transmission cooperation with the operating mechanism, and the other end is in transmission cooperation with the top rod of the direct-acting electromagnetic tripping device.
  • the contact system also includes a separator, which is located between the first contact structure and the second contact structure in the length direction of the circuit breaker, and the separator includes a separator portion.
  • the separator is driven to move the separator portion out from between the first contact point of the first contact structure and the second contact point of the second contact structure; when the first contact structure and the second contact structure are disconnected, the separator is driven to move the separator portion between the first contact point and the second contact.
  • the arc extinguishing chamber includes a plurality of arc extinguishing grids, each of which is arranged in parallel and spaced apart in the length direction of the circuit breaker; and the rotation centers of the operating member, the first contact structure and the second contact structure are located at three vertices of an acute triangle.
  • the circuit breaker housing is a convex-shaped structure
  • the operating member of the operating mechanism is arranged at the upper part of the convex-shaped structure
  • the arc extinguishing chamber is arranged at the lower part of the convex-shaped structure
  • the incoming terminal and the outgoing terminal are located at both ends of the lower part of the convex-shaped structure
  • the contact system is arranged at the junction of the upper and lower parts of the convex-shaped structure.
  • the thermal magnetic tripping mechanism includes a thermal tripping structure, a thermal tripping transmission member, a magnetic tripping structure and a magnetic tripping transmission member;
  • the thermal trip transmission member is located at the upper part of the convex structure, and the thermal trip structure extends from the lower part to the upper part of the convex structure.
  • the operating member, the thermal trip transmission member and the upper end of the thermal trip structure are arranged side by side in sequence; the magnetic trip transmission member and the magnetic trip structure are located at the lower part of the convex structure, and in the height direction of the circuit breaker, the magnetic trip transmission member and the magnetic trip structure are arranged side by side.
  • the magnetic trip transmission member is located between the contact system and the incoming terminal, and the magnetic trip structure is located between the arc extinguishing chamber and the incoming terminal.
  • first contact structure and the second contact structure are symmetrically and synchronously rotated.
  • the circuit breaker of the present invention has a reasonable and compact layout, provides a larger assembly space for the arc extinguishing chamber, and can be installed with an arc extinguishing chamber of larger specifications, which is beneficial to improving the arc extinguishing performance and breaking performance of the circuit breaker; moreover, the first contact structure and the second contact structure are arranged to rotate synchronously, which can not only double the breaking speed of the contact system but also double the opening distance, which is beneficial to improving the breaking performance and current carrying capacity of the short circuit.
  • lock and the linkage rocker cooperate with the thermal trip structure and the magnetic trip structure of the thermal magnetic trip mechanism respectively, providing more selection space for the matching points between the operating mechanism and the thermal magnetic trip mechanism, and facilitating layout and structural design.
  • FIG. 1 is a schematic diagram of the structure of a circuit breaker of the present invention, wherein the contact system is in a disconnected state and is provided with a thermal magnetic tripping mechanism of a first embodiment
  • FIG2 is a schematic diagram of the structure of the circuit breaker of the present invention, wherein the contact system is in a closed state and is provided with a thermal magnetic tripping mechanism of the first embodiment;
  • FIG. 3 is a schematic structural diagram of a housing base of a circuit breaker housing of the present invention.
  • FIG. 4 is a schematic diagram of the structure of the trip buckle and the lock buckle, the first contact structure, and the thermal magnetic tripping mechanism of the operating mechanism of the present invention, wherein the trip buckle, the lock buckle and the first contact structure are in an assembled state;
  • FIG5a is a schematic structural diagram of the tripping buckle, locking buckle and linkage rocker of the operating mechanism of the present invention, the first contact structure, and the thermal magnetic tripping mechanism, wherein the tripping buckle, locking buckle and the first contact structure are in an assembled state, and the linkage rocker and the first contact structure are in an exploded state;
  • FIG5b is an enlarged structural schematic diagram of part A of FIG5a of the present invention.
  • FIG. 6 is a schematic diagram of the three-dimensional structure of the contact system according to the first embodiment of the present invention.
  • FIG. 7 is a schematic projection diagram of the contact system of the first embodiment of the present invention, showing the matching relationship between the separator and the first support;
  • FIG. 8 is a schematic diagram of the three-dimensional structure of the separator according to the first embodiment of the present invention.
  • FIG9a is a schematic structural diagram of a first contact structure and a second contact structure according to a first embodiment of the present invention.
  • 9b is a schematic structural diagram of the first contact structure and the second contact structure of the first embodiment of the present invention, and also shows the assembly relationship between the second return spring and the second support;
  • FIG. 10 is a schematic structural diagram of a second contact structure according to the first embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a first contact structure according to a first embodiment of the present invention.
  • FIG. 12 is a schematic cross-sectional view of the first contact structure of the first embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of the linkage rocker of the present invention.
  • FIG. 14 is a schematic structural diagram of a thermal release transmission member of the present invention.
  • FIG. 15 is a schematic structural diagram of a thermal magnetic tripping mechanism according to a first embodiment of the present invention.
  • 16 is a schematic diagram of the assembly structure of the yoke and armature of the magnetic tripping structure of the thermal magnetic tripping mechanism of the first embodiment of the present invention
  • 17 is a schematic diagram of the structure of the current-carrying conductive plate of the present invention.
  • FIG. 18 is a schematic structural diagram of a contact system according to a second embodiment of the present invention.
  • 19 is a schematic diagram of the structure of the circuit breaker of the present invention, the contact system is in the disconnected state, and it is provided with a thermal magnetic tripping mechanism of the second embodiment;
  • FIG. 20 is a schematic structural diagram of a thermal magnetic tripping mechanism according to a second embodiment of the present invention.
  • 21 is another schematic structural diagram of the contact system according to the second embodiment of the present invention.
  • FIG22 is a first connection mode between the operating mechanism of the present invention and the contact system of the second embodiment
  • FIG23 is a second connection method between the operating mechanism of the present invention and the contact system of the second embodiment
  • FIG24 is a third connection mode between the operating mechanism of the present invention and the contact system of the second embodiment
  • 25 is a schematic diagram of the connection between the operating mechanism of the present invention and the contact system of the third embodiment
  • FIG. 26 is a schematic diagram showing the connection between the operating mechanism of the present invention and the contact system of the third embodiment.
  • h switch housing h21 first contact shaft slot; h22 second contact shaft hole; h23 first guide slide groove; h55 thermal release lever shaft; 1 operating mechanism; 11 operating member; 11s fifth center; 12 main connecting rod; 13 jump buckle; 14 lock; 140 lock body; 141 lock first arm; 142 lock second arm; 1420 lock second arm connecting part; 1421 lock second arm driven part; 14-15 linkage shaft; 15 linkage rocker; 150 rocker mounting part; 1500 rocker mounting hole; 151 rocker first arm; 1510 rocker first arm matching groove; 152 rocker second arm; 16 slider; third center 17s; 17-21 first sub-connecting rod; 17-22 second sub-connecting rod; 17-23 support member connecting rod; 17-1s first sub-center; 17-2s second sub-center; 17-3s third sub-center; 17-4s fourth sub-center; 18 support member; 18s support member connecting rod center; 19s fifth center; 2 contact system; 2s contact mechanism center; 21 first contact structure; 211 first contact; 2110 first contact
  • the present invention discloses a switch electrical appliance, preferably a circuit breaker, which includes a switch housing h (preferably a circuit breaker housing) and an operating device arranged in the switch housing h, wherein the operating device includes an operating mechanism 1 and a contact system 2, wherein the operating mechanism 1 and the contact system 2 are connected in driving connection to drive the contact system 2 to close or open.
  • the switch electrical appliance also includes an incoming terminal 31 and an outgoing terminal 32, wherein the contact system 2 is connected in series between the incoming terminal 31 and the outgoing terminal 32, and the switch electrical appliance is electrically connected to an external circuit (that is, the circuit where the switch electrical appliance is located) through the incoming terminal 31 and the outgoing terminal 32.
  • the contact system 2 includes a contact mechanism, which includes a first contact structure 21 and a second contact structure 22 that are relatively arranged side by side.
  • the rotation directions of the first contact structure 21 and the second contact structure 22 remain opposite, and the two rotate synchronously towards each other to close and rotate synchronously away from each other to disconnect. That is, the contacts of the first contact structure 21 and the second contact structure 22 (the first contact 2110 of the first contact structure 21 and the second contact 2210 of the second contact structure 22) move towards each other to close (the first contact 2110 and the second contact 2210 are moved closer to each other to close) or move away from each other to disconnect (the first contact 2110 and the second contact 2210 are moved away from each other to disconnect).
  • the first contact structure 21 includes a first support 212 pivotally arranged around a first center 21s and a first contact 211 arranged on the first support 212.
  • the first contact 211 can also be called a first moving contact.
  • the first contact 211 rotates around the first center 21s driven by the first support 212, that is, the first support 212 carries the first contact 211 (first moving contact) and drives it to rotate;
  • the second contact structure 22 includes a first support 222 pivotally arranged around a second center 22s and a second contact 221 arranged on the second support 222.
  • the second contact 221 can also be called a second moving contact.
  • the second contact 221 rotates around the second center 22s driven by the second support 222, that is, the second support 222 carries the second contact 221 (second moving contact) and drives it to rotate. Furthermore, the first contact 211 is inserted into the first support 212, and the other end is provided with a first contact point 2110; one end of the second contact 221 is inserted into the second support 222, and the other end is provided with a second contact point 2210.
  • the first support 212 and the second support 222 are respectively pivotally arranged on the first support structure, and the first support structure is realized by the switch housing h.
  • the switch housing h comprises a housing base and a housing cover (not shown in the figure) that are relatively buckled together
  • the housing base comprises a first support shaft column and a second support shaft column arranged on its bottom plate, and a first base shaft hole h21 and a second base shaft hole h22 in the middle of the first support shaft column and the second support shaft column respectively cooperate with the rotation shafts of the first support 212 and the second support 222 (that is, the first support shaft 2124 and the second support shaft 2222).
  • the first contact structure 21 and the second contact structure 22 are symmetrically pivoted, and the symmetrical pivoting arrangement means that the rotation centers of the first contact structure 21 and the second contact structure 22 are symmetrical and the rotation angles are symmetrical, so that the first contact structure 21 and the second contact structure 22 can rotate in a limited space with a larger opening distance, saving the internal space of the switch electrical appliance, improving the breaking performance, facilitating the design and layout, and improving the aesthetics.
  • the first contact structure 21 and the second contact structure 22 can also be asymmetrically arranged.
  • the operating mechanism 1 is drivingly connected to the first contact structure 21 and/or the second contact structure 22 to drive the first contact structure 21 and the second contact structure 22 to rotate synchronously toward or away from each other. Specifically:
  • the operating mechanism 1 is connected to the contact system 2 by driving: the first contact structure 21 and the second contact structure 22 are matched in transmission and arranged to rotate in linkage (that is, one of the first contact structure 21 and the second contact structure 22 rotates, and the other is directly driven by the former to rotate synchronously), the operating mechanism 1 is connected to the first contact structure 21 by driving, the operating mechanism 1 drives the first contact structure 21 to rotate, and the first contact structure 21 simultaneously drives the second contact structure 22 to rotate, so as to realize the synchronous rotation of the first contact structure 21 and the second contact structure 22 in the opposite direction or in the opposite direction.
  • the first contact structure 21 and the second contact structure 22 are matched in transmission.
  • the operating mechanism 1 can also be connected to the second contact structure 22 by driving, the operating mechanism 1 drives the second contact structure 22 to rotate, and the second contact structure 22 simultaneously drives the first contact structure 21 to rotate
  • the first contact structure 21 and the second contact structure 22 are moved to realize synchronous rotation toward or away from each other.
  • one end of the first contact structure 21 and the second contact structure 21 are respectively pivotally arranged around the first center 21s and the second center 22s, and the other end is closed or disconnected to close or disconnect the contact system 2.
  • the operating mechanism 1 is linked with the first support 212 of the first contact structure 21, the first support 212 is linked with the second support 222, the operating mechanism 1 drives the first support 212 to rotate and drive the first contact 211 to rotate, and the first support 212 drives the second support 222 to rotate and drive the second contact to rotate, so as to realize the first contact 211 and the second contact 221 to rotate in the opposite direction or rotate synchronously in opposite directions.
  • the first support 212 includes a main gear 2121;
  • the second support 222 includes a slave gear 2221;
  • the main gear 2121 is meshed with the slave gear 2221, so as to realize the driving coordination of the first contact structure 21 and the second contact structure 22.
  • the first support and the second support realize synchronous rotation through gear meshing, and the operation is more reliable and stable.
  • the axis of the main gear 2121 coincides with the first center 21s, and the axis of the slave gear 2221 coincides with the second center 22s.
  • the axis of the main gear 2121 may not coincide with the first center 21s, and the axis of the slave gear 2221 may not coincide with the second center 22s.
  • main gear 2121 and the slave gear 2221 are both sector gears.
  • the first support 212 includes a first support body 2120 pivotally arranged around a first center 21s, and the gear teeth of the main gear 2121 are sequentially arranged on the circumferential side wall of the first support body 2120 along the circumference of the first support body 2120, that is, the first support body 2120 and the gear teeth arranged on the circumferential side wall of the first support body 2120 constitute the main gear 2121;
  • the second support 222 includes a second support body 2220 pivotally arranged around a second center 22s, and the gear teeth of the slave gear 2221 are sequentially arranged on the circumferential side wall of the second support body 2220 along the circumference of the second support body 2220, that is, the second support body 2220 and the gear teeth arranged on the circumferential side wall of the second support body 2220 constitute the slave gear 2221;
  • the gear teeth of the main gear 2121 and the slave gear 2221 are located between the first support body 2120 and the second support body 2220 and are meshed with each other.
  • first contact structure 21 and the second contact structure 22 may also be indirectly connected in transmission, that is, the first contact structure 21 and the second contact structure 22 are connected in transmission via an intermediate transmission structure independent of the two to achieve linkage of the first contact structure 21 and the second contact structure 22.
  • the contact system 2 further includes a contact reset spring, which applies a force to the first contact structure 21 or the second contact structure 22, so that the first contact structure 21 and the second contact structure 22 rotate in opposite directions and disconnect. Further, the contact reset spring applies a force to the first support 212 of the first contact structure 21 and/or applies a force to the second support 222 of the second contact structure 22, so that the first contact structure 21 and the second contact structure 22 rotate in opposite directions and disconnect.
  • the second contact structure 22 includes a second reset spring 223, which acts as a contact reset spring and applies a force to the second contact structure 22, so that the second contact structure 22 rotates toward its disconnected position.
  • the second contact structure 22 simultaneously drives the first contact structure 21 to rotate toward its disconnected position, that is, the second reset spring 223 drives the second contact structure 22 and the first contact structure 21 to rotate synchronously in opposite directions and disconnect.
  • the second reset spring 223 is a torsion spring
  • the second support 222 also includes a second support spring stop 2225.
  • the second reset spring 223 is coaxially arranged with the second support 222, and one end of the second reset spring 223 cooperates with the second support spring stop 2225, and the other end cooperates with the switch housing.
  • the first contact structure 21 is provided with a first return spring
  • the second contact structure 22 is not provided with a second return spring
  • the first return spring applies a force to the first contact structure 21, so that the first contact structure 21 rotates toward its disconnected position, and the first contact structure 21 simultaneously drives the second contact structure 22 to rotate toward its disconnected position, that is, the first return spring drives the first contact structure 21 and the second contact structure 22 to rotate synchronously in opposite directions and disconnect.
  • the first return spring is a torsion spring, and its setting method is similar to that of the second return spring 223.
  • the first contact structure 21 and the second contact structure 22 are symmetrically and synchronously pivoted and the two are coordinated in transmission, only one contact reset spring, that is, the second reset spring 223 or the first reset spring, is required to achieve rapid disconnection of the first contact structure 21 and the second contact structure 22, and the structure is simple and the operation is reliable.
  • the operating mechanism 1 includes an operating member 11, a main connecting rod 12 and a buckle transmission structure, the operating member 11 and the buckle transmission structure are pivotally arranged respectively, the main connecting rod 12 is hinged with the operating member 11 and the buckle transmission structure respectively, the buckle transmission structure includes a jump buckle 13 and a lock buckle structure which are pivotally arranged and snap-fitted respectively, the lock buckle structure includes a lock buckle 14 which is pivotally arranged and snap-fitted with the jump buckle 13, and the buckle transmission structure is connected to the first contact structure 21 or the second contact structure 22 in a transmission manner. Further, the buckle transmission structure also includes a pivotally arranged rotating plate, the jump buckle 13 and the lock buckle 14 are pivotally arranged on the rotating plate respectively. Further, the operating member 11 is pivotally arranged on the first supporting structure, and the first supporting structure is realized by the switch housing h.
  • the jumper 13 and the lock 14 are respectively pivotally arranged on the first support 212 and snap-fitted, the first support 212 serves as a rotating plate, and the two ends of the main connecting rod 12 are respectively hinged to the operating member 11 and the jumper 13; the operating member 11 is driven to rotate by an external force, and the jumper 13, the lock 14 and the first support 212 are driven by the main connecting rod 12 to rotate around the first center 21s as a whole to close or disconnect the contact system 2; the lock structure is driven by an external force (for example, the lock structure is subjected to the force of the thermal magnetic tripping mechanism 5, and the matching relationship between the thermal magnetic tripping mechanism 5 and the remaining lock structures will be described in detail later) to rotate to release the snap-fitting of the lock structure and the jumper 13 (that is, the snap-fitting of the lock 14 and the jumper 13).
  • an external force for example, the lock structure is subjected to the force of the thermal magnetic tripping mechanism 5, and the matching relationship between the thermal magnetic tripping mechanism 5 and
  • the first support 212 further comprises a jumper shaft 2123 for pivotally mounting the jumper 13, a locker shaft for pivotally mounting the locker 14 and a first support shaft 2124 for pivotally mounting the first support body 2120 of the first support 212, the locker shaft is coaxially arranged with the first support shaft 2124, and the jumper shaft 2123 and the locker shaft are both arranged at one axial end of the first support body 2120.
  • the jumper 13 is rotatably sleeved on the jumper shaft 2123
  • the locker 14 is rotatably sleeved on the locker shaft.
  • the first support 212 also includes a lock rotation limiter, which is arranged on the radial side of the lock shaft and coaxially with the lock shaft; as shown in Figure 4, the lock 14 includes a lock mounting hole and a locking portion arranged in the lock mounting hole.
  • the lock stop boss on the inner wall, the lock 14 is mounted on the lock shaft and the lock rotation limit platform through the lock mounting hole, the lock rotation limit platform cooperates with the lock stop boss and is located on both radial sides of the lock shaft to limit the rotation angle of the lock 14 relative to the first support 212.
  • the first support 212 also includes a jump buckle limit block 2128 arranged on one side of the jump buckle shaft 2123.
  • the jump buckle limit block 2128 cooperates with the jump buckle 13 to limit the swing range of the jump buckle 13 relative to the first support body 2120 of the first support 212.
  • the first support 212 also includes a first support impact portion 2125 arranged on a radial side of the first support body 2120.
  • the first support impact portion 2125 is impacted (for example, by the magnetic tripping transmission member 54 or the magnetic tripping structure) to cause the first support 212 to rotate in the disconnecting direction, thereby accelerating the speed at which the first support 212 rotates in the disconnecting direction, thereby improving the disconnecting efficiency of the contact system 2.
  • the jump buckle 13 and the lock buckle 14 can also be pivotally arranged on the second support 222 and snap-fitted.
  • the jump buckle 13, the lock buckle 14 and the second support 222 rotate around the second center 22s under the drive of the operating member 11 to close or open the contact system 2.
  • the lock structure of the operating mechanism 1 further includes a linkage rocker 15, which is coaxial with the lock 14 and rotates synchronously, and the linkage rocker 15 and the lock 14 are stacked along the rotation axis of the lock 14.
  • the linkage rocker 15 is driven by the thermal trip structure of the thermal magnetic trip mechanism to rotate, and the linkage rocker 15 drives the lock 14 to rotate to release the snap fit with the trip 13.
  • the lock 14 is driven by the magnetic trip structure of the thermal magnetic trip mechanism to rotate, thereby releasing the snap fit between the lock 14 and the trip 13.
  • thermal trip structure directly drives the linkage rocker 15 to rotate through the pivotally arranged thermal trip transmission member 55, and the linkage rocker 15 drives the lock 14 to rotate to release the snap fit with the trip 13.
  • the magnetic trip structure directly drives the lock 14 to rotate through the pivotally arranged magnetic trip transmission member 54 to release the snap fit with the trip 13.
  • the lock structure, the thermal release transmission member 55 and the magnetic release transmission member 54 are distributed at the three vertices of a triangle. Further, the lock 14 and the linkage rocker 15 are both pivotally arranged around the first center 21s, the magnetic release transmission member 54 is pivotally arranged around the third center 54s, and the thermal release transmission member 55 is pivotally arranged around the fourth center 55s.
  • the first center 21s, the third center 54s and the fourth center 55s are distributed at the three vertices of a triangle.
  • the lock buckle 14 , the first support 212 and the linkage rocker 15 are sequentially stacked along the rotation axis direction of the lock buckle 14 , and the lock buckle 14 and the linkage rocker 15 are respectively located on both sides of the first support 212 .
  • the lock 14 includes a lock body 140 and a lock second arm 142 arranged on the lock body 140, and the lock 14 is pivoted through the lock body 140;
  • the linkage rocker 15 includes a rocker mounting portion 150 and a rocker first arm 151 arranged on the rocker mounting portion 150, and the linkage rocker 15 is pivoted through the rocker mounting portion 150, and the lock second arm 142 and the rocker first arm 151 are driven and connected.
  • the second lock arm 142 includes a second lock arm connecting portion 1420 and a second lock arm driven portion 1421, one end of the second lock arm connecting portion 1420 is connected to the lock body 140, and the other end is connected to the second lock arm driven portion 1421;
  • the first rocker arm 151 is provided with a first rocker arm matching groove 1510, and the second lock arm driven portion 1421 is inserted into the first arm matching groove 1510 to achieve synchronous rotation of the lock 14 and the linkage rocker 15.
  • the extension direction of the second lock arm driven portion 1421 is parallel to the rotation axis direction of the lock 14.
  • the linkage rocker 15 also includes a rocker second arm 152 connected to the rocker body 150
  • the lock 14 also includes a lock first arm 141 connected to the lock body 14; when multiple operating mechanisms 1 are arranged in parallel and linked, the rocker second arm 152 and the lock first arm 141 of two adjacent operating mechanisms 1 are connected through the linkage shaft 14-15, thereby realizing the linkage release of each operating mechanism.
  • the rocker body 150 of the linkage rocker 15 includes a rocker body shaft hole 1500 disposed in the middle thereof, and the rocker body 150 is rotatably sleeved on the first supporting shaft column of the housing base through the rocker body shaft hole 1500 .
  • the angle between the first lock arm 141 and the second lock arm 142 is an obtuse angle
  • the angle between the first rocker arm 151 and the second rocker arm 152 is an obtuse angle.
  • the first lock arm 141 and the second rocker arm 152, and the second lock arm 142 and the first rocker arm 151 are correspondingly arranged in the direction of the rotation axis of the lock 14.
  • the first contact structure 21 further includes a first contact spring 213.
  • the first contact 211 is rotatably arranged relative to the first support 212, and the first contact spring 213 is arranged between the first contact 211 and the first support 212.
  • the first contact spring 213 applies a first force to the first contact 211.
  • the first force causes the first contact 211 to be limitedly matched with the first support 212 and remain relatively still.
  • the first contact 211 rotates relative to the first support 212 to store energy in the first contact spring 213, and the first force causes the first contact 211 to press the second contact 221, that is, the first contact spring 213 provides an overtravel force to the first contact 211, ensuring that the first contact 211 and the second contact 221 are reliably closed.
  • the first contact 211, the first support 212 and the first contact spring 213 are assembled in the following manner: the first support 212 includes a first support body 2120 and a first contact stopper 2126; a first support cavity 21200 is provided in the middle of the first support body 2120; a first contact insertion hole 21201 is provided on the side wall of the first support cavity 21200; one end of the first contact 211 is inserted into the first support cavity 21200 through the first contact insertion hole 21201; the first contact stopper 2126 is provided on the outer side wall of the first support body 2120 and is located on one side of the first contact insertion hole 21201; the first contact spring 213 is provided in the first support cavity 21200; One end of the torsion spring inside is limited by the inner wall of the first support cavity 21200, and the other end is limited by one end of the first contact 211 inserted into the first support cavity 21200 so that the first contact 211 is against the first contact limit block 2126.
  • the first contact 211 is rotatably arranged relative to the first support 212 with the first contact limit block 2126 as the support.
  • the above-mentioned assembly method has a simple structure and reliable assembly, which ensures the reliable operation of the first contact structure 21.
  • the first contact limit block 2126 is also used to block the part of the first contact 211 protruding outside the first support 212 and close to the first support 212, which is beneficial to increase the electrical clearance and creepage distance after the first contact structure 21 and the second contact structure 22 are disconnected.
  • the first support 212 also includes a first contact spring shaft 2127 disposed in the first support cavity 21200 , and the first contact spring 213 is sleeved on the first contact spring shaft 2127 .
  • the first contact spring 213 can also be configured as a tension spring, and both ends of the tension spring are respectively hung on one end of the first contact 211 inserted in the first supporting cavity 21200 and the first contact spring shaft 2127.
  • the setting position of the first contact spring shaft 2127 needs to be adjusted accordingly.
  • the locking shaft 2123, a first supporting shaft 2124 and a tripping stopper 2128 are arranged on one axial end of the first supporting body 2120, the first supporting cavity 21200 is arranged in the axial middle of the first supporting body 2120, and another first supporting shaft 2124 is arranged on the other axial end of the first supporting body 2120. Further, the first supporting cavity 21200 is opened on one side facing the linkage rocker 15.
  • the second contact structure 22 further includes a second contact spring (not shown in the figure), the second contact 221 is rotatably arranged relative to the second support 222, and the second contact spring is arranged between the second contact 221 and the second support 222; the second contact spring applies a second force to the second contact 221.
  • the second force causes the second contact 221 to be limitedly matched with the second support 222 and remain relatively stationary.
  • the second contact 221 rotates relative to the second support 222 so that the second contact spring can still move, and the second force causes the second contact 221 to press the first contact 211, that is, the second contact spring provides an overtravel force to the second contact 221, thereby ensuring that the second contact 221 and the first contact 211 are reliably closed;
  • the second contact limit block 2224 is also used to block the part of the second contact 221 protruding outside the second support 222 and close to the second support 222, which is beneficial to increase the electrical clearance and creepage distance after the first contact structure 21 and the second contact structure 22 are disconnected.
  • the second contact 221, the second support 222 and the second contact spring are assembled in the following manner:
  • the second support 222 includes a second support body 2220 and a second contact limiting block 2224, a second support cavity is provided in the middle of the second support body 2220, and a second contact insertion hole is provided on the side wall of the second support cavity, one end of the second contact 221 is inserted into the second support cavity through the second contact insertion hole, the second contact limiting block 2224 is arranged on the outer side wall of the second support body 2220 and is located on one side of the second contact insertion hole, the second contact spring is a torsion spring arranged in the second support cavity, one end of which is limitedly matched with the inner side wall of the second support cavity, and the other end is limitedly matched with one end of the second contact 221 inserted into the second support cavity so that the second contact rests on the second contact limiting block 2224, and the second contact 221 is rotatably arranged relative to the second support 222 with the second contact
  • the second support 222 further includes a second support shaft 222 , and the two second support shafts 222 are respectively disposed at two axial ends of the second support body 2220 .
  • the second contact spring can also be configured as a tension spring, with both ends of the tension spring respectively hung on one end of the second contact 221 inserted in the second supporting cavity and on the second contact spring axis.
  • the setting position of the second contact spring axis needs to be adjusted accordingly.
  • the first contact 211 includes a first contact point 2110 and a first contact arm 2111.
  • the first contact arm 2111 is a V-shaped structure, including a first contact arm outer section and a first contact arm inner section. One end of the first contact arm outer section is provided with a first contact point 2110, and the other end is bent and connected to one end of the first contact arm inner section. The other end of the first contact arm inner section is inserted into the first support 212.
  • the first contact arm outer section is bent relative to the first contact arm inner section in a direction away from the second contact 221. Further, the angle between the first contact arm outer section and the first contact arm inner section is an obtuse angle.
  • the first contact 211 and the second contact 212 are symmetrical structures to each other, and the structure of the second contact 212 will not be described in detail herein.
  • the contact system 2 also includes a separator 23, and the separator 23 includes a separator 232; as shown in Figure 2, when the first contact structure 21 and the second contact structure 22 are closed, the separator 23 is driven by the operating mechanism 1 or the contact system 2 to move the separator 232 out from between the first contact 2110 of the first contact structure 21 and the second contact 2210 of the second contact structure 22; as shown in Figure 1, when the first contact structure 21 and the second contact structure 22 are disconnected, the separator 23 is driven to move the separator 232 between the first contact 2110 and the second contact 2210; the separator 23 can lengthen and shield the arc generated between the first contact structure 21 and the second contact structure 22 during the disconnection process, which is beneficial to improve the breaking performance and the current carrying capacity of the contact system 2.
  • the partition 23 is arranged to move as a whole, and is driven to move in the first direction or the second direction, the first direction and the second direction being opposite directions, so that the partition 232 moves in or out between the first contact 2110 and the second contact 2210.
  • first contact 2110 and the second contact 2210 refer to the mutual contact area of the first contact structure 21 and the second contact structure 22, which can refer to the contact structure independently arranged in a narrow sense, or the part of the first contact structure 21 and the second contact structure 22 used to contact each other.
  • the baffle 23 is driven to move upward and move out between the first contact 2110 and the second contact 2210; when the first contact structure 21 and the second contact structure 22 are disconnected, the baffle 23 is driven to move downward and move into between the first contact 2110 and the second contact 2210.
  • the separator 23 completely separates the first contact 211 of the first contact structure 21 (especially the portion of the first contact 211 protruding outside the first support 212) and the second contact 221 of the second contact structure 22 (especially the portion of the second contact structure 221 protruding outside the second support 222), that is, the first contact 211 and the second contact 221 are completely blocked by the separator 23, one relative to the other, in a direction perpendicular to the moving direction of the separator 23.
  • the separator 23 can also be rotatably arranged. When the first contact structure 21 and the second contact structure 22 are closed, the separator 23 is driven to swing so that the separator 232 moves out from between the first contact point 2110 and the second contact point 2210. When the first contact structure 21 and the second contact structure 22 are disconnected, the separator 23 is driven to swing so that the separator 232 moves into between the first contact point 2110 and the second contact point 2210. It should be noted that the separator 23 of this embodiment is used to separate the first contact structure 21 and the second contact structure 22 that are symmetrically and synchronously pivoted. As another embodiment, it can also be used to separate two asymmetrical contact structures that are synchronously arranged and both move and cooperate. The first contact structure 21 and the second contact structure 22 .
  • the separator 23 is driven by the first contact structure 21 to move so that the separator 232 moves in or out between the first contact 2110 and the second contact 2210 .
  • the first support 212 includes a separator driving gear 2122, and the axis of the separator driving gear 2122 coincides with the first center 21s; the separator 23 includes a separator rack 231 connected to the separator portion 232, and the separator driving gear 2122 is engaged with the separator rack 231.
  • the first support 212 is driven to rotate by the operating mechanism 1, and the first support 212 drives the separator driving gear 2122 to rotate, and the separator driving gear 2122 drives the separator 23 to move linearly through the separator rack 231, so that the separator portion 232 of the separator 23 moves in or out between the first contact 2110 and the second contact 2210.
  • the teeth of the separator driving gear 2122 are arranged in sequence on the circumferential side wall of the first support body 2120 along the circumference of the first support body 2120 of the first support 212, that is, the first support body 2120 and the teeth of the separator driving gear 2122 arranged on the circumferential side wall of the first support body 2120 constitute the separator driving gear 2122.
  • the gear teeth of the partition driving gear 2122 and the gear teeth of the main gear 2121 are arranged side by side along the axial direction of the first support 212 .
  • the second support 222 includes a separator limiting platform 2223, the separator limiting platform 2223 and the separator driving gear 2122 are respectively located on both sides of the separator rack 231, and the separator limiting platform 2223 and the separator rack 231 are limited and matched to keep the separator rack 231 meshed with the separator driving gear 2122.
  • the separator rack 231 includes teeth arranged on the front side thereof and a rack limiting side surface arranged on the back side thereof, and the separator limiting platform 2223 abuts and limits the position with the rack limiting side surface, so that the separator rack 231 and the separator driving gear 2122 are kept meshed.
  • the separator limit platform 2223 is a fan-shaped platform, whose center coincides with the second center 22s, and includes a limit arc surface, which is in line contact with the separator rack 231, thereby ensuring the limit effect while reducing the friction between the two.
  • the partition 23 also includes a partition back plate 230, which is located on one side of the partition rack 231 and connected to it in the width direction of the partition rack 231 (the direction in which the teeth of the partition rack 231 are arranged side by side is the length direction of the partition rack 231, and the extension direction of a single tooth of the partition rack 231 is the width direction of the partition 231, and the length direction and the width direction are perpendicular to each other), and one end of the partition rack 231 and the partition back plate 230 in the length direction of the partition rack 231 (the side-by-side direction of the teeth of the partition rack 231 is the length direction of the partition rack 231) are both connected to the partition portion 232; the partition back plate 230 is conducive to strengthening the strength of the partition rack 231.
  • the separator 23 is an L-shaped structure as a whole, the separator portion 231 serves as one side of the L-shaped structure, and the separator rack 231 and the separator back plate 230 serve as the other
  • the partition 232 includes a partition plate 2320 and a reinforcing connection portion 2321.
  • the partition rack 231 and the partition back plate 230 are connected to the reinforcing connection portion 2321 at one end in the length direction of the partition rack 231.
  • the partition back plate 230 and the partition rack 231 are located on one side of the reinforcing connection portion 2321, and the partition plate 2320 is located on the other side of the reinforcing connection portion 2321.
  • the thickness of the reinforcing connection portion 2321 is greater than the thickness of the partition plate 2320, thereby enhancing the connection strength between the partition rack 231, the partition back plate 230 and the partition 232. Further, the two ends of the reinforcing connection portion 2320 in the thickness direction protrude from the two sides of the partition plate 2320, respectively.
  • the separator 23 further comprises a first separator sliding rib 233 and a second separator sliding rib 234 respectively arranged at both ends of the separator 232, and the first separator sliding rib 233 and the second separator sliding rib 234 are respectively used to slide with the first guide groove h23 and the second guide groove (not shown in the figure) fixedly arranged, so as to limit the moving path of the separator 23 and ensure the reliable cooperation between the separator, the first contact structure 21 and the second contact structure 23.
  • the first guide groove h23 and the second guide groove are respectively arranged on the housing base and the housing cover of the switch housing h.
  • the switch electrical appliance of the present invention also includes a thermal magnetic tripping device, which is used to drive the operating mechanism 1 to trip when an overload or short circuit fault occurs in the circuit where the switch electrical appliance is located, so that the contact system 2 disconnects the circuit where the switch electrical appliance is located.
  • a thermal magnetic tripping device which is used to drive the operating mechanism 1 to trip when an overload or short circuit fault occurs in the circuit where the switch electrical appliance is located, so that the contact system 2 disconnects the circuit where the switch electrical appliance is located.
  • the thermal-magnetic tripping device includes a thermal-magnetic tripping mechanism 5, which includes a thermal tripping structure and a magnetic tripping structure.
  • the thermal tripping structure is used to drive the operating mechanism 1 to trip and open the switch when an overload fault occurs in the circuit where the switch is located, and the magnetic tripping structure is used to drive the operating mechanism 1 to trip and open the switch when a short-circuit fault occurs in the circuit where the switch is located.
  • the thermal trip structure includes a bimetallic strip 56, one end of which in the length direction is fixedly connected to the magnetic trip structure; in the length direction of the bimetallic strip 56, the magnetic trip structure and the thermal trip structure are arranged side by side.
  • This layout method is conducive to reducing the installation space required for the thermal-magnetic trip mechanism 5, so that the thermal-magnetic trip mechanism 5 can be installed in a narrow space;
  • the thermal trip structure and the magnetic trip structure are an integrated modular structure, which is convenient for transportation, installation and disassembly, and improves the positioning accuracy of each component of the thermal-magnetic trip mechanism, so that the thermal-magnetic trip mechanism will not be affected by the deformation of the shell used to install the thermal-magnetic trip mechanism. Changes, thereby ensuring the action performance of the thermal-magnetic trip mechanism; and it can also realize that the thermal trip structure and the magnetic trip structure cooperate with the operating mechanism from different directions, which is convenient for structural and layout design, and can also save the material consumption of the bimetallic strip.
  • one end of the bimetallic strip 56 is a bimetallic strip fixed end for being fixedly connected to the magnetic tripping structure and the other end is a bimetallic strip driving end for outputting the first tripping driving force outward;
  • the magnetic tripping structure includes a magnetic tripping driving member, one end of the magnetic tripping driving member is a driving member driving end for outputting the second tripping driving force outward and the other end is a driving member mounting end; in the length direction of the bimetallic strip 56, the bimetallic strip driving end, the bimetallic strip fixed end, the driving member driving end and the driving member mounting end are arranged in sequence, which is conducive to reducing the installation space required for the thermal magnetic tripping mechanism 5. Specifically, as shown in the directions of Figures 4, 5a, and 20, the bimetallic strip driving end, the bimetallic strip fixed end, the driving member driving end and the driving member mounting end are arranged in sequence from top to bottom.
  • the thermal trip device also includes a thermal trip transmission member 55 and a magnetic trip transmission member 54 which are pivotally arranged respectively, and the magnetic trip transmission member 54, the thermal trip transmission member 55 and the locking structure of the operating mechanism 1 are distributed at the three vertices of a triangle; when an overload fault occurs in the circuit where the thermal-magnetic trip mechanism 5 is located, the thermal trip structure drives the locking structure to rotate through the thermal trip transmission member 55 to release the snap fit with the trip button 13, so that the operating mechanism 1 is tripped; when a short circuit fault occurs in the circuit where the thermal-magnetic trip mechanism 5 is located When the magnetic tripping structure drives the lock structure to rotate through the magnetic tripping transmission member 54, the snap fit with the tripping buckle 13 is released, so that the operating mechanism 1 is tripped.
  • the thermal tripping structure is driven and matched with the lock structure through the thermal tripping transmission member, and the magnetic tripping structure is driven and matched with the lock structure through the magnetic tripping transmission member.
  • the reliability and stability of the transmission path between the thermal-magnetic tripping mechanism and the operating mechanism are guaranteed.
  • the thermal tripping transmission member and the magnetic tripping transmission member are both pivotally arranged, and the required action space and installation space are small, which is conducive to saving space.
  • its magnetic tripping structure is a snap-on electromagnetic tripping device, which includes a current-carrying conductive plate 33 and a yoke 51 and an armature 52 used in conjunction with it.
  • the current-carrying conductive plate 33 is used to be connected in series with the circuit to be protected (that is, the circuit to which the switch electrical appliance of the present invention is connected).
  • the current-carrying conductive plate 33 is connected in series with the contact system 2 and is also connected in series with the circuit where the switch electrical appliance is located;
  • the armature 52 serves as a magnetic tripping driving member, one end of which is rotatably arranged and the end is the armature pivot end (the armature pivot end serves as the driving member installation end), and the other end is swingably arranged and the end is the armature driving end (the armature driving end serves as the driving member driving end).
  • the armature 52 swings to attract or separate from the yoke 51, and the conductive plate matching section 3 of the current-carrying conductive plate 33 33 passes through the middle of the yoke 51 and is located between the yoke 51 and the armature 52, the plane where the conductive plate matching section 333 is located is parallel to the rotation axis of the armature 52, and the direction in which the conductive plate matching section 333 is inserted between the yoke 51 and the armature 52 is perpendicular to the rotation axis of the armature 52, and the extension direction of the conductive plate matching end 333 is the same as the direction in which the conductive plate matching end 333 is inserted between the yoke 51 and the armature 52; the bimetallic fixed end of the bimetallic strip 56 is fixedly connected and electrically connected to the current-carrying conductive plate 33; when an overload or short-circuit fault occurs in the circuit where the switch electrical appliance is located, an overload or short-circuit current flows through the current
  • the fixed end of the bimetallic strip is fixedly connected to the current-carrying conductive plate 33, the armature 52 is rotatably arranged on the yoke 51, and the yoke 51 is fixedly connected to the current-carrying conductive plate 33, so that the thermal-magnetic tripping mechanism 5 becomes an integrated structure, and the thermal-magnetic tripping mechanism 5 is an integral module, which is convenient for assembly and disassembly.
  • the current-carrying conductive plate 33 also serves as a conductive plate for connecting the contact system 2 and the incoming terminal 31 in series.
  • the above-mentioned layout of the thermal trip structure and the magnetic trip structure of the first embodiment is beneficial to reducing the size specifications of the yoke 51 and reducing the overall thickness of the thermal magnetic trip mechanism 5 (that is, the thickness in the direction from the armature 52 to the yoke 51), compared with the traditional method of placing the bimetallic component between the yoke and the armature of the magnetic trip structure.
  • the magnetic release structure further includes an armature spring 53, which is connected to the armature 52 and applies a force to the armature 52, so that the armature 52 has a rotational tendency to separate from the yoke 51.
  • the force applied to the armature 52 by the armature spring 53 must be overcome.
  • the current-carrying conductive plate 33 further includes a conductive plate second intermediate section 332, one end of which is bent and connected to an end of the conductive plate matching section 333 away from the bimetallic component, one end of the armature spring 53 is connected to the armature drive end of the armature 52, and the other end is connected to the conductive plate second intermediate section 332.
  • the thermal release structure further includes a bimetallic support 58, which includes a support vertical portion 580 and a support horizontal portion 581.
  • a bimetallic support 58 which includes a support vertical portion 580 and a support horizontal portion 581.
  • One end of the support vertical portion 580 is connected to the bimetallic strip 56, and the other end is connected to the support horizontal portion 581 by bending.
  • the current-carrying conductive plate 33 further includes a conductive plate third middle section 334 connected to the conductive plate matching section 333 by bending.
  • the conductive plate third middle section 334 is located between the magnetic release structure and the bimetallic support 58.
  • the support horizontal portion 581 is parallel to the conductive plate third middle section 334 and is fixedly connected.
  • the bimetallic strip 56 is fixedly connected to the magnetic release structure through the bimetallic support 58.
  • the bimetallic support 58 is an L-shaped structure, and the support vertical portion 580 and the support horizontal portion 581 are respectively used as two sides of the L-shaped structure.
  • the current-carrying conductive plate 33 also includes a conductive plate bimetallic adjustment section 335 opposite to the bracket vertical portion 580, the conductive plate bimetallic adjustment section 335 is connected to the conductive plate third middle section 334 by bending, the conductive plate bimetallic adjustment section 335 and the conductive plate matching section 333 are respectively bent to the two sides of the conductive plate third middle section 334, and the conductive plate bimetallic adjustment section 335 is provided with an adjustment section screw hole; the thermal release structure also includes a bimetallic adjustment screw 57, the bimetallic adjustment screw 57 is threadedly matched with the adjustment section screw hole, and one end of the bimetallic adjustment screw 57 is used to press the bracket vertical portion 58, and is used to adjust the bimetallic strip 56. Further, the conductive plate matching section 333, the conductive plate third middle section 334 and the conductive plate bimetallic adjustment section 335 are connected by right-angle bending in sequence.
  • the bimetallic strip 56 directly drives the linkage rocker 15 of the operating mechanism 1 to rotate through the thermal release transmission member 55 , and the linkage rocker 15 drives the lock buckle 14 to rotate to release the snap fit between the lock buckle 14 and the trip buckle 13 .
  • the thermal release transmission member 55 directly drives the lock buckle 14 to rotate to release the buckle fit between the lock buckle 14 and the trip buckle 13. Furthermore, the thermal release transmission member driving arm 552 of the thermal release transmission member 55 directly drives the lock buckle second arm 142 of the lock buckle 14.
  • the thermal trip transmission member 55 includes a thermal trip transmission member mounting portion 550, a thermal trip transmission member actuated arm 551 and a thermal trip transmission member driving arm 552.
  • the thermal trip transmission member 55 is pivotally arranged through the thermal trip transmission member mounting portion 550.
  • One end of the thermal trip transmission member actuated arm 551 is connected to the thermal trip transmission member mounting portion 550, and the other end is driven and cooperated with the bimetallic strip 56.
  • One end of the thermal trip transmission member driving arm 552 is connected to the thermal trip transmission member mounting portion 550, and the other end is driven and cooperated with the operating mechanism 1 to drive the lock buckle 14 of the operating mechanism 1 to rotate and release its buckle cooperation with the trip buckle 13.
  • the thermal trip transmission member actuated arm 551 and the thermal trip transmission member driving arm 552 are distributed along the axial direction of the thermal trip transmission member mounting portion 550. Further, the free end of the thermal trip transmission member driving arm 552 is driven and matched with the linkage rocker 15 of the operating mechanism 1 to drive the linkage rocker 15 to rotate, and the linkage rocker 15 drives the lock buckle 14 to rotate to release the buckle cooperation with the trip buckle 13. Further, the angle between the thermal trip transmission member driven arm 551 and the thermal trip transmission member driving arm 552 is ⁇ 90°.
  • the thermal trip transmission component mounting portion 550 includes a thermal trip transmission component mounting hole 5500 disposed in the middle thereof, and a thermal trip lever shaft h55 is disposed on the shell base.
  • the thermal trip transmission component mounting portion 550 is rotatably sleeved on the thermal trip lever shaft h55 through the thermal trip transmission component mounting hole 5500 .
  • the thermal release transmission member driven arm 551 includes a transmission member driven arm connecting portion 5510 and a transmission member driven arm driven portion 5511.
  • One end of the transmission member driven arm connecting portion 5510 is connected to the thermal release transmission member mounting portion 550, and the other end is connected to the transmission member driven arm driven portion 5511.
  • the extension direction of the transmission member driven arm driven portion 5511 is parallel to the rotation axis direction of the thermal release transmission member 55 and perpendicular to the thermal release transmission member 55.
  • the extending direction of the bimetallic strip 56 of the magnetic tripping mechanism 5 is parallel to the rotation axis direction of the thermal release transmission member 55 and perpendicular to the thermal release transmission member 55.
  • the yoke 51 includes a yoke body 510 and a yoke support arm 511 and a yoke limit arm 512 respectively arranged at both ends of the yoke body 510;
  • the two ends of the armature 52 are an armature pivot end and an armature drive end respectively, the armature pivot end is rotatably supported on the yoke support arm 511 and cooperates with the yoke support arm 511 to limit the movement of the armature 52 along the direction of its rotation axis, and the armature drive end cooperates with the yoke limit arm 512 to limit the movement of the armature 52 along the direction of its rotation axis;
  • the assembly method of the yoke 51 and the armature 52 is simple and reliable, and the yoke 51 forms a reliable limit on the armature 52 while supporting the rotation of the armature 52, ensuring that the armature 52 rotates reliably and stably
  • the yoke body 510 is a U-shaped structure, which includes a yoke body bottom plate 5100 and a yoke body side plate 5101.
  • the two ends of the yoke body bottom plate 5100 are respectively arranged with two yoke body side plates 5101 in relative spacing.
  • the conductive plate matching section 333 passes through between the two yoke body side plates 5101 and is relatively fixedly connected to the yoke body bottom plate 5100.
  • the yoke body side plates 5101 face the yoke body.
  • each of the yoke body side plates 5101 is provided with a yoke support arm 511 and a yoke limit arm 512, the yoke support arms 511 on the two yoke body side plates 5101 are arranged relatively at intervals, the yoke limit arms 512 on the two yoke body side plates 5101 are arranged relatively at intervals, the armature drive end is rotatably supported on the two yoke limit arms 512, and the armature drive end swings between the two yoke limit arms 512. Further, the yoke support arms 511 and the yoke limit arms 512 are respectively arranged at both ends of the edge of the yoke body side plates 5101 facing the armature 52.
  • the yoke body 510 may also include more than two yoke body side panels 5101, and the yoke body side panels 5101 are arranged side by side in sequence and at intervals.
  • the structure of the conductive plate matching section 333 also needs to be adjusted accordingly, for example, an opening is provided for the yoke body side panel 5101 located in the middle to pass through; each of the yoke body side panels 5101 may be provided with a yoke support arm 511 and a yoke limit arm 512, or the yoke support arm 511 and the yoke limit arm 512 may be provided only on the two outermost yoke body side panels 5101.
  • the yoke support arm 511 is provided with a yoke support groove 5110
  • the armature 52 also includes two armature feet 522 arranged at a relative interval on the pivot end of the armature, and both sides of the two armature feet 522 form support shoulders, that is, two step-type structures formed on both sides of the two armature bases 522, and the two support shoulders are respectively rotatably arranged in the two yoke support grooves 5110, and the two armature feet 522 are located between the two yoke support arms 511 and respectively cooperate with the two yoke support arms 511 to limit the movement of the armature 52 along its axial direction.
  • edge of the yoke body side plate 5101 facing the armature 52 constitutes a side wall of the yoke support groove 5110, so that when the yoke 51 and the armature 52 are attracted, the armature 52 and the yoke body side plate 5101 are tightly fitted.
  • the free ends of the yoke limit arms 512 are each provided with a yoke stopper, and the two yoke stoppers protrude between the two yoke limit arms 512.
  • the two yoke stoppers cooperate with the armature drive end to prevent the armature drive end from swinging out of the two yoke limit arms 512, so as to ensure that the armature 52 swings within a predetermined swing angle range relative to the yoke 52.
  • the armature drive end includes an armature limit plate 5210 and an armature drive finger 5211, the armature limit plate 5210 is located between the two yoke limit arms 512 and cooperates with the two yoke stoppers to limit, and the armature drive finger 5211 is used to cooperate with the operating mechanism 1 in driving.
  • the armature 52 also includes an armature main plate 520, which is located between the armature support arm 511 and the armature limit arm 512 and cooperates with the yoke body side plate 5101.
  • One end of the armature main plate 520 is connected to the armature bottom foot 522, and the other end is connected to the armature limit plate 5210.
  • the armature 52 directly drives the lock buckle 14 to rotate through the magnetic release transmission member 54 , so that the lock buckle 14 releases the snap fit with the jump buckle 13 , and the operating mechanism 1 is released.
  • the current-carrying conductive plate 33 further includes a conductive plate support arm 336, which is connected to the conductive plate double-metal adjustment section 335 by bending, and the magnetic release transmission member 54 is pivotally arranged on the conductive plate support arm 336. Further, the plane where the conductive plate support arm 336 is located is perpendicular to the plane where the conductive plate double-metal adjustment section 335 is located. Further, the rotation axis of the magnetic release transmission member 54 is parallel to the rotation axis of the armature 52.
  • the magnetic release transmission member 54 includes a first arm 541 of the magnetic release transmission member and a second arm 542 of the magnetic release transmission member.
  • One end of the first arm 541 of the magnetic release transmission member is transmission-coordinated with the armature 52, and the other end is bent and connected to the second arm 542 of the magnetic release transmission member.
  • the other end of the second arm 542 of the magnetic release transmission member is transmission-coordinated with the first arm 141 of the lock 14.
  • the magnetic release transmission member 54 is pivotally arranged at the connection between the first arm 541 of the magnetic release transmission member and the second arm 542 of the magnetic release transmission member.
  • the magnetic release transmission member 54 also includes a magnetic release transmission member reinforcement rib 543, the two ends of which are respectively connected to the first arm 541 of the magnetic release transmission member and the second arm 542 of the magnetic release transmission member, and the magnetic release transmission member reinforcement rib 543 improves the structural strength of the magnetic release transmission member 54, so that it can withstand the impact of the armature 52; the angle between the first arm 541 of the magnetic release transmission member and the second arm 542 of the magnetic release transmission member is ⁇ 90°.
  • the magnetic release transmission member reinforcement rib 543 is an arc rib, and its center coincides with the rotation center of the magnetic release transmission member 54.
  • the thermal-magnetic tripping mechanism of the present invention also achieves the following technical effects: the thermal tripping structure and the magnetic tripping structure are respectively driven and cooperated with the linkage rocker 15 and the lock 14 through the thermal tripping transmission member 55 and the magnetic tripping transmission member 54, thereby increasing the spacing between the transmission paths of the two, avoiding interference between the two, and facilitating layout and structural design.
  • thermal-magnetic tripping mechanism 5 As shown in FIGS. 19-20 , a second embodiment of the thermal-magnetic tripping mechanism 5 is shown:
  • its magnetic tripping structure is a direct-acting electromagnetic tripping device, which includes a coil winding 590, a coil frame 591, a yoke 592, a push rod 593, a fixed iron core and a moving iron core.
  • the coil winding 590 is sleeved on the coil frame 591, and the yoke 592 is connected to the coil frame 590 and arranged around the coil winding 590.
  • the push rod 593 serves as a magnetic tripping driving member and the axial direction of the push rod 593 is the same as the length direction of the bimetallic strip 56.
  • One end of the push rod 593 protrudes from the outside of the coil frame 590 as a driving end of the driving member, and the other end is slidably inserted in the middle of the coil frame 590 as a driving end.
  • the fixed iron core and the moving iron core are respectively arranged in the middle of the coil frame 590, and the push rod 593 is fixedly connected to the moving iron core;
  • the bimetallic strip mounting end of the bimetallic strip 56 is fixedly connected to the yoke 592, and the bimetallic strip 56 is fixedly connected to the yoke 592.
  • the metal sheet 56 is electrically connected to the coil winding 590.
  • the moving direction of the push rod 593 is perpendicular to the rotation axis direction of the magnetic tripping transmission member 54 and is the same as the axial direction of the push rod 593.
  • One end of the coil winding 590 is electrically connected to the incoming line conductive plate 36 , and the other end is electrically connected to the double metal bracket 58 ; the incoming line conductive plate 36 is also matched with the incoming line terminal 31 .
  • the yoke 592 is a U-shaped structure, which includes a yoke bottom plate and a yoke side plate, and the two yoke side plates are respectively connected to the two ends of the yoke bottom plate by bending and are respectively fixedly connected to the two ends of the coil frame 591. Further, the yoke bottom plate and the two terminals of the coil winding 590 are respectively located on the radial sides of the coil frame 590. Further, the two terminals of the coil winding 590 extend to the two sides of the axial ends of the coil frame 590.
  • the bimetal bracket 58 is fixedly connected to the yoke 592, one end of the bimetallic strip 56 is fixedly connected and electrically connected to the bimetal bracket 58, and the other end is transmission-coordinated with the thermal release transmission member 55.
  • the bimetal bracket 58 is an L-shaped structure as a whole, which includes a bracket horizontal portion 580 and a bracket vertical portion 581, one end of the bracket horizontal portion 580 is fixedly connected to one end of the yoke 592, and the other end is bent and connected to one end of the bracket vertical portion 581, and the other end of the bracket vertical portion 581 is fixedly connected and electrically connected to one end of the bimetallic strip 56.
  • the bracket horizontal portion 580 is fixedly connected to the yoke side plate of the yoke 592 close to the thermal release structure.
  • the magnetic release transmission member 54 needs to be improved as follows: the magnetic release transmission member 54 includes a first arm 541 of the magnetic release transmission member and a second arm 542 of the magnetic release transmission member, one end of the first arm 541 of the magnetic release transmission member is transmission-connected to the top rod 593 of the magnetic release structure, and the other end is bent and connected to one end of the second arm 542 of the magnetic release transmission member, and the other end of the second arm 542 of the magnetic release transmission member is transmission-matched with the lock buckle 14 of the operating mechanism 1 to drive the lock buckle 14 to rotate so that it releases the buckle match with the jump buckle 13. Further, the first arm 541 of the magnetic release transmission member and the second arm 542 of the magnetic release transmission member are V-shaped structures as a whole.
  • the angle between the first arm 541 of the magnetic tripping transmission member and the second arm 542 of the magnetic tripping transmission member is an obtuse angle.
  • the magnetic trip transmission member 54 further comprises a magnetic trip transmission member mounting portion 540, and the magnetic trip transmission member 54 is pivotally arranged by the magnetic trip transmission member mounting portion 540. Further, the magnetic trip transmission member mounting portion 542 is arranged on one end of the magnetic trip transmission member first arm 541 connected to the magnetic trip transmission member second arm 542.
  • the magnetic release transmission member 54 is an integrated structure, preferably formed by cutting and bending a metal plate.
  • the first support striker 2125 of the first support 212 cooperates with the magnetic tripping transmission member 54 as follows: when the magnetic tripping structure is actuated, the lock catch 14 is first driven to rotate so as to release the snap fit with the tripping catch 13, and then the first support 212 is driven to rotate through the first support striker 2125, so as to rotate the first support 212 in the disconnection direction.
  • the armature 52 drives the magnetic tripping transmission member 541 to rotate through the first arm 541 of the magnetic tripping transmission member, and the magnetic tripping transmission member 54 strikes the second arm 142 of the lock catch 14 through the second arm 542 of the magnetic tripping transmission member to rotate the lock catch 14 and release the snap fit with the tripping catch 13, and then the second arm 542 of the magnetic tripping transmission member strikes the first support striker 2125, so as to rotate the first support 212 in the disconnection direction, so as to accelerate the disconnection speed of the contact system 2.
  • the lock buckle 14 is hit by the magnetic release transmission member 54 and rotates, and the lock buckle 14 releases the snap fit with the jump buckle 13, and the lock buckle 14 further rotates and hits the first support receiving part 2125 of the first support 212 to rotate it in the disconnection direction.
  • the current-carrying conductive plate 33 further includes a conductive plate first middle section 331 and a conductive plate wiring section 330.
  • the conductive plate wiring section 330, the conductive plate first middle section 331, the conductive plate second middle section 332, the conductive plate matching section 333, the conductive plate third middle section 34 and the conductive plate double-gold adjustment section 335 are connected end to end in sequence;
  • the conductive plate first middle section 331, the conductive plate second middle section 332, the conductive plate matching section 333 and the conductive plate third middle section 334 form a square frame structure
  • the conductive plate wiring section 330 is bent relative to the conductive plate first middle section 331 to a side away from the conductive plate matching section 333
  • the conductive plate double-gold adjustment section 335 is bent relative to the conductive plate third middle section 334 to a side away from the conductive plate second middle section 332.
  • the conductive plate support arm 336 is connected to the conductive plate double-gold adjustment section 335 by bending and is located
  • the switch device further includes an outgoing line conductive plate 34 , and the outgoing line conductive plate 34 is used to connect the outgoing line terminal 32 and the contact system 2 in series.
  • the switch device further includes an arc striking plate 35 , one end of which is electrically connected to the outgoing conductive plate 34 , and the other end of which extends toward one side of the arc extinguishing chamber 4 .
  • the switch device of the present invention is a circuit breaker, which adopts the following layout:
  • the operating mechanism 1, contact system 2, incoming terminal 31, outgoing terminal 32 and arc extinguishing chamber 4 are all arranged in the circuit breaker housing (that is, the switch housing h); the operating part 11 of the operating mechanism 1, the contact system 2 and the arc extinguishing chamber 4 are arranged in sequence in the height direction of the circuit breaker; the incoming terminal 31 and the outgoing terminal 32 are located at both ends of the circuit breaker in the length direction of the circuit breaker; the contact system 2 and the arc extinguishing chamber 4 are located between the incoming terminal 31 and the outgoing terminal 32 in the length direction of the circuit breaker, and the first contact structure 21 and the second contact structure 22 of the contact system 2 are symmetrically and synchronously rotated in the length direction of the circuit breaker; the arc inlet of the arc extinguishing chamber 4 is relatively matched with the disconnection interval formed by the disconnection of the first contact structure 21 and the second contact structure 22 and faces the operating part 11.
  • the above layout of the circuit breaker is reasonable and compact, providing a larger assembly space for the arc extinguishing chamber 4, and a larger arc extinguishing chamber 4 can be installed, which is beneficial to improving the arc extinguishing performance and breaking performance of the circuit breaker; moreover, the first contact structure 21 and the second contact structure 22 are symmetrically and synchronously rotated, which can not only double the breaking speed of the contact system 2 but also double the opening distance, which is beneficial to improving the breaking performance and current carrying capacity of the short circuit.
  • the left-right direction of Figures 1-2 and 19 (that is, the direction from the incoming terminal 31 to the outgoing terminal 32) is the length direction of the circuit breaker
  • the up-down direction of Figure 1-2 (that is, the direction from the operating member 11 to the arc extinguishing chamber 4) is the height direction of the circuit breaker
  • the inside-outside direction of the paper of Figure 1-2 is the thickness direction of the circuit breaker.
  • the rotation centers of the operating member 11 , the first contact structure 21 and the second contact structure 22 are located at the three vertices of a triangle.
  • the above-mentioned triangle is an acute triangle.
  • the incoming terminal 31 , the first contact structure 21 , the second contact structure 22 and the outgoing terminal 32 are sequentially arranged side by side in the length direction of the circuit breaker.
  • the lock 14 of the operating mechanism 1, the first support 212 of the contact system 2 and the interlocking rocker 15 of the operating mechanism 1 are stacked in sequence in the thickness direction of the circuit breaker, that is, the lock 14 and the interlocking rocker 15 are located on both sides of the first support 212 in the thickness direction of the circuit breaker; the lock 14 and the interlocking rocker 15 cooperate to provide more selection space for the matching positions of the operating mechanism 1 and the thermal-magnetic tripping mechanism 5, which is convenient for layout and structural design.
  • the contact system 2 and the arc extinguishing chamber 4 are located on one side of the thermal-magnetic tripping mechanism 5 , and the incoming terminal 31 is located on the other side of the thermal-magnetic tripping mechanism 5 .
  • the thermal tripping structure and magnetic tripping structure of the thermal magnetic tripping mechanism 5 are arranged side by side in the height direction of the circuit breaker. Furthermore, in the length direction of the circuit breaker, the thermal tripping structure is arranged side by side with the contact system 2, and the magnetic tripping structure is arranged side by side with the arc extinguishing chamber 4.
  • the contact system 2 and the arc extinguishing chamber 4 are located on one side of the thermal-magnetic tripping mechanism 5 , and the outlet terminal 32 is located on the other side of the thermal-magnetic tripping mechanism 5 .
  • the thermal-magnetic tripping mechanism 5 is located between the contact system 2 and the incoming terminal 31 or between the contact system 2 and the outgoing terminal 32 in the length direction of the circuit breaker.
  • the thermal-magnetic tripping mechanism 5 is located between the arc extinguishing chamber 4 and the incoming terminal 31 or between the arc extinguishing chamber 4 and the outgoing terminal 32 in the length direction of the circuit breaker.
  • the thermal tripping structure and the magnetic tripping structure of the thermal-magnetic tripping mechanism 5 are located on both sides of the contact system 2 or on both sides of the arc extinguishing chamber 4 in the length direction of the circuit breaker.
  • the thermal trip transmission member 55 of the thermal magnetic trip mechanism 5 is located between the operating mechanism 1 and the bimetallic assembly. Further, the thermal trip transmission member 55 is located between the linkage rocker 15 of the operating mechanism 1 and the bimetallic strip 56 of the bimetallic assembly in the length direction of the circuit breaker.
  • the magnetic tripping structure is a snap-on electromagnetic tripping device, and the magnetic tripping transmission member 54 of the thermal magnetic tripping mechanism 5 is located between the operating mechanism 1 and the armature 52. Further, the magnetic tripping transmission member 54 is located between the lock 14 of the operating mechanism 1 and the armature 52 in the length direction of the circuit breaker. Further, the magnetic tripping transmission member 54 is located below the thermal tripping transmission member 55 in the height direction of the circuit breaker.
  • the magnetic tripping structure is a direct-acting electromagnetic release
  • the magnetic tripping transmission member 54 is located between the operating mechanism 1 and the top rod 593 of the direct-acting electromagnetic release.
  • the rotation centers of the lock 14 , the magnetic release transmission member 54 and the thermal release transmission member 55 are located at the three vertices of a triangle.
  • the above-mentioned triangle is an acute triangle.
  • the magnetic release structure is a direct-acting electromagnetic release
  • the above-mentioned triangle is an obtuse triangle
  • the vertex angle corresponding to the lock buckle 14 is an obtuse angle
  • the separator 23 of the contact system 2 is located between the first contact structure 21 and the second contact structure 22 in the length direction of the circuit breaker.
  • the arc extinguishing chamber 40 includes a plurality of arc extinguishing grids 40 , and the arc extinguishing grids 40 are sequentially arranged side by side and spaced apart in the length direction of the circuit breaker.
  • the magnetic tripping structure is a snap-on electromagnetic tripping device, which includes a yoke 51; as shown in Figure 19, the magnetic tripping structure is a direct-acting electromagnetic tripping device, which includes a yoke 592) are respectively located on both sides of the arc extinguishing chamber 4 in the length direction of the circuit breaker, which is beneficial to increase the speed at which the arc enters the arc extinguishing chamber 4 and improve the arc extinguishing efficiency; moreover, the yoke 51/592 serves as an arc-striking structure on one side of the arc extinguishing chamber 40, which is beneficial to simplify the internal structure of the circuit breaker and reduce the number of components.
  • the circuit breaker is a small circuit breaker, and its circuit breaker housing is a convex-shaped structure.
  • the operating member 11 of the operating mechanism 1 is arranged at the upper part of the convex-shaped structure, and the arc extinguishing chamber 4 is arranged at the lower part of the convex-shaped structure.
  • the arc extinguishing chamber 4 has a larger installation space, so that the circuit breaker can use a larger arc extinguishing chamber 4 to improve the arc extinguishing ability.
  • the incoming terminal 31 and the outgoing terminal 32 are located at the two ends of the lower part of the convex-shaped structure, and the contact system 2 is located at the junction of the upper and lower parts of the convex-shaped structure.
  • the thermal trip transmission member 55 of the thermal magnetic trip mechanism 5 is located at the upper part of the convex structure, the thermal trip structure of the thermal magnetic trip mechanism 5 extends from the lower part of the convex structure to the upper part, and the operating member 11, the thermal trip transmission member 55 and the upper end of the thermal trip structure are arranged side by side in sequence in the length direction of the circuit breaker;
  • the magnetic trip transmission member 54 and the magnetic trip structure are located at the lower part of the convex structure, the magnetic trip transmission member 54 is located between the contact system 2 and the incoming terminal 31 in the length direction of the circuit breaker, and the magnetic trip structure is located between the arc extinguishing chamber 4 and the incoming terminal 31 in the length direction of the circuit breaker.
  • the upper and lower parts of the convex structure refer to the
  • the present invention also discloses a circuit breaker device, which includes two or more circuit breakers used side by side, and the lock structures of adjacent circuit breakers are connected in transmission and arranged in linkage. Further, in adjacent circuit breakers, the lock 14 of one lock structure is connected in transmission and arranged in linkage with the linkage rocker 15 of another lock structure, for example, the first lock arm 141 of the lock 14 is connected in transmission with the second rocker arm 152 of the corresponding linkage rocker 15 through the linkage shaft 14-15.
  • the operating mechanism 1 is connected to the contact system 2 in a second embodiment.
  • the operating mechanism 1 is connected to the contact system 2 in a second embodiment.
  • the second embodiment of the contact system 2 further includes a sliding block 16, a first connecting rod 17-21, and a second connecting rod 17-22.
  • the first connecting rod 17-21 is hinged to the slider 16 and the first contact structure 21 at both ends
  • the second connecting rod 17-22 is hinged to the slider 16 and the second contact structure 22 at both ends.
  • the mechanism 1 drives the slider 16 to slide, and the slider 16 drives the first contact structure 21 and the second contact structure 22 to rotate synchronously toward or away from each other through the first sub-connecting rod 17-21 and the second sub-connecting rod 17-22.
  • the slider 16 is arranged to slide linearly.
  • the operating mechanism 1 may also be connected to either the first contact structure 21 or the second contact structure 22 instead of the slider 16.
  • the operating mechanism 1 drives the first contact structure 21 or the second contact structure 22 to rotate.
  • the first contact structure 21 or the second contact structure 22 drives the second contact structure 22 or the first contact structure 21 to rotate through the cooperation of the first sub-connecting rod 17-21, the slider 16 and the second sub-connecting rod 17-22, so as to realize the synchronous rotation towards or away from each other of the first contact structure 21 and the second contact structure 22; at this time, the slider 16, the first sub-connecting rod 17-21 and the second sub-connecting rod 17-22 become the intermediate transmission structure for realizing the linkage between the first contact structure 21 and the second contact structure 22, that is, the first contact structure 21 and the second contact structure 22 are indirectly connected by the intermediate transmission structure composed of the slider 16, the first sub-connecting rod 17-21 and the second sub-connecting rod 17-22.
  • the slider 16 drives the first contact structure 21 and the second contact structure 22 respectively through the first branch connecting rod 17-21 and the second branch connecting rod 17-22, so that the two rotate synchronously toward each other or rotate synchronously away from each other, and the transmission is stable and reliable.
  • the opening distance is increased, which significantly improves the breaking performance of the circuit breaker.
  • the first reset spring applies a force to the first support 212 to rotate the first contact structure 21 to its breaking position
  • the first contact structure 21 drives the second contact structure 22 to rotate to its breaking position through the first branch connecting rod 17-21, the slider 16 and the second branch connecting rod 17-22
  • the second reset spring 223 applies a force to the second support 222 to rotate the second contact structure 22 to its breaking position
  • the second contact structure 22 drives the first contact structure 21 to rotate to its breaking position through the second branch connecting rod 17-22, the slider 16 and the first branch connecting rod 17-21.
  • the slider 16, the first sub-link 17-21 and the second sub-link 17-22 are all located between the first contact structure 21 and the second contact structure 22, and the first sub-link 17-21 and the second sub-link 17-22 are arranged in a V shape; one end of the first contact structure 21 and the second contact structure 22 are pivotally arranged around the first center 21s and the second center 22s respectively, and the other end is closed or disconnected (that is, the first contact 2110 of the first contact structure 21 and the second contact 2210 of the second contact structure 22 cooperate with each other to close or disconnect); one end of the first sub-link 17-21 is hinged to the slider 16 and the other end is hinged to the first contact structure 21; one end of the second sub-link 17-22 is hinged to the slider 16 and the other end is hinged to the second contact structure 22.
  • first sub-link 17-21 is hinged to the slider 16 and the other end is hinged to the middle of the first contact structure 21, the middle of the first contact structure 21 preferably refers to the portion of the first contact structure 21 between the first center 21s and the first contact point 2110 of the second contact structure 21;
  • one end of the second sub-link 17-22 is hinged to the slider 16 and the other end is hinged to the middle of the second contact structure 22, the middle of the second contact structure 22 preferably refers to the portion of the second contact structure 22 between the second center 22s and the second contact point 2210 of the second contact structure 22.
  • the first sub-link 17-21 and the second sub-link 17-22 are symmetrically arranged, and the two are mutually symmetrical structures.
  • the first sub-link 17-21 and the second sub-link 17-22 are both hinged to the slider 16 around the third center 17s, that is, one end of the first sub-link 17-21 and the second sub-link 17-22 is coaxially rotatably arranged on the slider 16; the first sub-link 17-21 is hinged to the first contact structure 21 around the third sub-center 17-3s, and the second sub-link 17-22 is hinged to the second contact structure 22 around the fourth sub-center 17-4s.
  • the third center 17s, the first center 21s, and the second center 22s are respectively located at the three vertices of an isosceles triangle, and the first center 21s and the second center 22s are respectively located at the vertices corresponding to the two base angles of the isosceles triangle.
  • the middle parts of the first contact structure 21 and the second contact structure 22 are pivotally arranged around the first center 21s and the second center 22s respectively, one end of the first contact structure 21 is hinged to the first branch connecting rod 17-21, one end of the second contact structure 22 is hinged to the second branch connecting rod 17-22, and the other ends of the first contact structure 21 and the second contact structure 22 are closed or disconnected.
  • first sub-link 17-21 and the second sub-link 17-22 are respectively hinged to the first support 212 and the second support 222, that is, one end of the first sub-link 17-21 is hinged to the slider 16 and the other end is hinged to the first support 212, and one end of the second sub-link 17-22 is hinged to the slider 16 and the other end is hinged to the second support 222, which is beneficial to improving insulation.
  • the first connection mode of the operating mechanism 1 and the contact system 2 of the second embodiment is as follows: the operating mechanism 1 includes an operating member 11, a main connecting rod 12, a jumper 13, and a lock 14.
  • the jumper 13 and the lock 14 are respectively pivotally arranged on the first contact structure 21 or the second contact structure 22 and overlapped, and the two ends of the main connecting rod 12 are respectively hinged to the operating member 11 and the jumper 13. Further, the jumper 13 and the lock 14 are respectively pivotally arranged on the first support 212.
  • the working principle of the operating mechanism 1 is the same as the prior art in the field, and will not be described in detail here.
  • the jump buckle 13 and the lock buckle 14 are respectively pivotally disposed on the second support 222 .
  • the slider 16 is connected to the baffle 23 and moves synchronously. Furthermore, the slider 16 and the baffle 23 are an integrated structure, which is beneficial to reduce the number of parts of the circuit breaker and improve installation efficiency and working stability.
  • the slider 16 is slidably set on the circuit breaker housing; the first contact structure 21 and the second contact structure 22 are respectively pivoted on the circuit breaker housing (specifically, the first support 212 is pivoted on the circuit breaker housing through its first support shaft 2124, and the second support 222 is pivoted on the circuit breaker housing through its second support shaft 2222).
  • the second connection mode of the operating mechanism 1 and the contact system 2 of the second embodiment is as follows: the operating mechanism 1 includes an operating member 11, a main connecting rod 12, a jumper 13, a lock 14, a support member 18 and support member connecting rods 17-23, the operating member 11 and the support member 18 are respectively pivotally arranged, the jumper 13 and the lock 14 are respectively pivotally arranged on the support member 18, the two ends of the main connecting rod 12 are respectively hinged to the operating member 11 and the jumper 13, and the two ends of the support member connecting rods 17-23 are respectively hinged to the support member 18 and the slider 16. Further, the support member connecting rods 17-23 are hinged to the slider 16 around the center of the connecting rod slider.
  • first sub-link 17-21 is hinged to the slider 16 around the first sub-center 17-1s
  • second sub-link 17-22 is hinged to the slider 16 around the second sub-center 17-2s
  • first sub-center 17-1s and the second sub-center 17-2s are arranged in parallel and spaced apart.
  • the center of the connecting rod slider, the first sub-center 17-1s and the second sub-center 17-2s are located at the three vertices of a triangle.
  • the above triangle is an isosceles triangle
  • the first sub-center 17-1s and the second sub-center 17-2s are respectively located at the vertices of the isosceles triangle.
  • the first connecting rod 17-21 and the second connecting rod 17-22 are hinged to the slider 16 around the same center.
  • this is the third connection method between the operating mechanism 1 and the contact system 2 of the second embodiment: the difference between the third connection method and the second connection method lies in the connection structure between the operating mechanism 1 and the contact system 2, specifically: one end of the support member connecting rod 17-23 is hinged to the support member 18, and the other end is hinged to the first contact structure 21 or the second contact structure 22.
  • the support member connecting rod 17-23 is hinged to the first support 212 of the first contact structure 21.
  • the support member connecting rod 17-23 can be changed to be hinged to the second support 222 of the second contact structure 22.
  • this is a third embodiment of the contact system 2.
  • the middle parts of the first contact structure 21 and the second contact structure 22 are both pivotally arranged around the contact mechanism center 2s, that is, the two are coaxially arranged, one end of the first sub-link 17-21 is hinged to the slider 16 and the other end is hinged to one end of the first contact structure 21 around the third sub-center 17-3s, one end of the second sub-link 17-22 is hinged to the slider 16 and the other end is hinged to one end of the second contact structure 22 around the fourth sub-center 17-4s, the slider 16, the third sub-center 17-3s, the contact mechanism center 2s and the fourth sub-center 17-4s are respectively located at the four vertices of a quadrilateral.
  • the operating mechanism 1 includes an operating member 11, a main connecting rod 12, a tripping buckle 13, a locking buckle 14, a supporting member 18 and a supporting member connecting rod 17-23, the operating member 11 and the supporting member 18 are respectively pivotally arranged, the tripping buckle 13 and the locking buckle 14 are respectively pivotally arranged on the supporting member 18, the two ends of the main connecting rod 12 are respectively hinged with the operating member 11 and the tripping buckle 13, and the supporting member 18 is transmission-connected with the slider 16.
  • first sub-connecting rod 17-21 and the second sub-connecting rod 17-22 are both hinged with the supporting member 18 around the fifth center 19s through the connecting rod hinge shaft, that is, the first sub-connecting rod 17-21 and the second sub-connecting rod 17-22 are both hinged with the supporting member 18 through the connecting rod hinge shaft, and the axis of the connecting rod hinge shaft coincides with the fifth center 19s; the connecting rod hinge shaft serves as the slider 16.
  • the terms “upper”, “lower”, “left”, “right”, “inner”, “outer”, etc. indicate directions or positional relationships based on directions or positional relationships shown in the accompanying drawings, or directions or positional relationships that are usually placed when in use, and are only for the convenience of description, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as limiting the present invention.
  • the terms “first”, “second”, “third”, etc. are only used to distinguish descriptions, and cannot be understood as indicating relative importance.

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Abstract

本发明涉及低压电器领域，具体涉及一种断路器，其包括断路器壳体以及设置在断路器壳体内的操作机构、接触系统、进线端子、出线端子、灭弧室和热磁脱扣机构；所述接触系统包括同步转动设置的第一触头结构和第二触头结构；在所述断路器的高度方向上，操作机构的操作件、接触系统和灭弧室依次设置；在所述断路器的长度方向上，进线端子和出线端子位于断路器的两端，接触系统和灭弧室位于进线端子和出线端子之间，接触系统和灭弧室位于热磁脱扣机构一侧，进线端子或出线端子位于热磁脱扣机构另一侧，第一触头结构和第二触头结构并排设置；所述断路器，其内部布局更加合理，为灭弧室提供了更大的装配空间。

Description

断路器 技术领域
本发明涉及低压电器领域，具体涉及一种断路器。
背景技术
现有断路器的内部布局，导致灭弧室的安装空间受限，无法容纳更大规格的灭弧室，从而影响断路器的灭弧能力和分断能力；而且现有断路器的接触系统，由于断路器内部空间限制，开距无法大幅提升，限制断路器对的分断能力提升。
发明内容
本发明的目的在于克服现有技术的至少一种缺陷，提供一种断路器，其内部布局更加合理，为灭弧室提供了更大的装配空间。
为实现上述目的，本发明采用了如下技术方案：
一种断路器，其包括断路器壳体以及设置在断路器壳体内的操作机构、接触系统、进线端子、出线端子、灭弧室和热磁脱扣机构；所述接触系统包括同步转动设置的第一触头结构和第二触头结构；
在所述断路器的高度方向上，操作机构的操作件、接触系统和灭弧室依次设置；
在所述断路器的长度方向上，进线端子和出线端子位于断路器的两端，接触系统和灭弧室位于进线端子和出线端子之间，接触系统和灭弧室位于热磁脱扣机构一侧，进线端子或出线端子位于热磁脱扣机构另一侧，第一触头结构和第二触头结构并排设置。
进一步的，所述进线端子、第一触头结构、第二触头结构和出线端子在断路器的长度方向上依次并排设置；所述灭弧室的电弧入口与第一触头结构和第二触头结构分断形成的分断间隔相对配合且朝向操作件。
进一步的，所述操作机构还包括主连杆、跳扣和锁扣，第一触头结构包括第一支持和第一触头，第一支持枢转设置在断路器壳体内，第一触头设置在第一支持上在其带动下与第一支持同步转动，跳扣和锁扣分别枢转设置在第一支持上且搭扣配合，主连杆两端分别与操作件和跳扣件铰接。
进一步的，所述操作机构还包括联动摇杆，联动摇杆和锁扣同转轴且同步转动设置，在断路器的厚度方向上，联动摇杆和锁扣位于第一支持两侧；所述热磁脱扣机构包括热脱扣结构和磁脱扣结构，热脱扣结构用于在断路器所在电路发生过载故障时通过联动摇杆驱动锁扣转动而解除其与跳扣的搭扣配合，磁脱扣结构用于在断路器所在电路发生短路故障时直接驱动锁扣转动而解除其与跳扣的搭扣配合；多个所述断路器并排联动设置时，相邻两个断路器中，一个断路器的锁扣与另一个断路器的联动摇杆驱动相连。
进一步的，所述热磁脱扣机构包括用于在断路器所在电路发生过载故障时驱动操作机构脱扣的热脱扣结构和用于在断路器所在电路发生短路故障时驱动操作机构脱扣的磁脱扣结构，热脱扣结构和磁脱扣结构在断路器的高度方向上并排设置。
进一步的，在所述断路器的长度方向上，热脱扣结构位于接触系统和进线端子或出线端子之间，磁脱扣结构位于灭弧室和进线端子或出线端子之间。
进一步的，所述断路器还包括与出线端子电连且在断路器的长度方向上位于出线端子和灭弧室之间的引弧板。
进一步的，所述热磁脱扣机构还包括枢转设置的热脱扣传动件，热脱扣结构包括双金组件，热脱扣传动件位于操作机构和双金组件之间。
进一步的，所述热磁脱扣机构还包括枢转设置的磁脱扣传动件，磁脱扣结构为拍合式电磁脱扣器，其包括枢转设置的衔铁，磁脱扣传动件位于操作机构和衔铁之间；所述操作机构的锁扣、磁脱扣传动件和热脱扣传动件的转动中心分别位于一个三角形的三个顶点处。
进一步的，所述热磁脱扣机构还包括枢转设置的磁脱扣传动件，磁脱扣结构为直动式电磁脱扣器，磁脱扣传动件位于操作机构和磁脱扣结构之间，磁脱扣传动件一端与操作机构传动配合，另一端与直动式电磁脱扣器的顶杆传动配合。
进一步的，所述接触系统还包括分隔件，分隔件在断路器的长度方向上位于第一触头结构和第二触头结构之间，分隔件包括分隔部，第一触头结构和第二触头结构闭合时，分隔件受驱动使分隔部由第一触头结构的第一触点和第二触头结构的第二触点之间移出，第一触头结构和第二触头结构分断时，分隔件受驱动使分隔部移入第一触点和第二触点之间。
进一步的，所述灭弧室包括多块灭弧栅片，各灭弧栅片在断路器的长度方向上依次并排间隔设置；所述操作件、第一触头结构和第二触头结构的转动中心位于一个锐角三角形的三个顶点处。
进一步的，所述断路器壳体为凸字型结构，操作机构的操作件设置在凸字型结构的上部，灭弧室设置在凸字型结构的下部，进线端子和出线端子位于凸字型结构的下部的两端，接触系统设置在凸字型结构的上部和下部的交界处。
进一步的，所述热磁脱扣机构包括热脱扣结构、热脱扣传动件、磁脱扣结构和磁脱扣传动件； 所述热脱扣传动件位于凸字型结构的上部，热脱扣结构由凸字型结构的下部延伸至上部，在断路器的长度方向上，操作件、热脱扣传动件和热脱扣结构的上端依次并排设置；所述磁脱扣传动件和磁脱扣结构位于凸字型结构的下部，在断路器的高度方向上，磁脱扣传动件和磁脱扣结构并排设置，在断路器的长度方向上，磁脱扣传动件位于接触系统和进线端子之间，磁脱扣结构位于灭弧室和进线端子之间。
进一步的，所述第一触头结构和第二触头结构对称同步转动设置。
本发明的断路器，其布局合理、紧凑，为灭弧室提供了更大的装配空间，可安装更大规格的灭弧室，从而有利于提高断路器的灭弧性能和分断性能；而且，所述第一触头结构和第二触头结构同步转动设置，不仅能够加倍提升接触系统的分断速度而且还加倍提升了开距，有利于提高短路的分断性能和载流能力。
此外，所述锁扣和联动摇杆，分别与热磁脱扣机构的热脱扣结构和磁脱扣结构配合，为操作机构与热磁脱扣机构的配合位点提供了更多的选择空间，便于布局和结构设计。
附图说明
图1是本发明断路器的结构示意图，接触系统处于分断状态，其设有第一实施例热磁脱扣机构；
图2是本发明断路器的结构示意图，接触系统处于闭合状态，其设有第一实施例热磁脱扣机构；
图3是本发明断路器壳体的壳体基座的结构示意图；
图4是本发明操作机构的跳扣和锁扣，第一触头结构，以及热磁脱扣机构的结构示意图，其中跳扣、锁扣和第一触头结构处于装配状态；
图5a是本发明操作机构跳扣、锁扣和联动摇杆，第一触头结构，和热磁脱扣机构的结构示意图，其中跳扣、锁扣和第一触头结构处于装配状态，联动摇杆和第一触头结构处于爆炸状态；
图5b是本发明图5a的A部分的放大结构示意图；
图6是本发明第一实施例的接触系统的立体结构示意图；
图7是本发明第一实施例的接触系统的投影示意图，示出了分隔件与第一支持的配合关系；
图8是本发明第一实施例的分隔件的立体结构示意图；
图9a是本发明第一实施例的第一触头结构和第二触头结构的结构示意图；
图9b是本发明第一实施例的第一触头结构和第二触头结构的结构示意图，还示出了第二复位弹簧与第二支持的装配关系；
图10是本发明第一实施例的第二触头结构的结构示意图；
图11是本发明第一实施例的第一触头结构的结构示意图；
图12是本发明第一实施例的第一触头结构的剖面结构示意图；
图13是本发明联动摇杆的结构示意图；
图14是本发明热脱扣传动件的结构示意图；
图15是本发明第一实施例热磁脱扣机构的结构示意图；
图16是本发明第一实施例热磁脱扣机构的磁脱扣结构的磁轭和衔铁的装配结构示意图；
图17是本发明载流导电板的结构示意图；
图18是本发明第二实施例的接触系统的结构示意图；
图19是本发明断路器的结构示意图，接触系统处于分断状态，其设有第二实施例热磁脱扣机构；
图20是本发明第二实施例热磁脱扣机构的结构示意图；
图21是本发明第二实施例的接触系统的另一结构示意图；
图22是本发明操作机构与第二实施例的接触系统的第一种连接方式；
图23是本发明操作机构与第二实施例的接触系统的第二种连接方式；
图24是本发明操作机构与第二实施例的接触系统的第三种连接方式；
图25是本发明操作机构与第三实施例的接触系统的连接示意图；
图26是本发明操作机构与第三实施例的接触系统的连接原理图。
附图标记说明：
h开关壳体；h21第一触头轴槽孔；h22第二触头轴孔；h23第一导向滑槽；h55热脱扣杠杆轴；
1操作机构；11操作件；11s第五中心；12主连杆；13跳扣；14锁扣；140锁扣主体；141锁
扣第一臂；142锁扣第二臂；1420锁扣第二臂连接部；1421锁扣第二臂受动部；14-15联动轴；15联动摇杆；150摇杆安装部；1500摇杆安装孔；151摇杆第一臂；1510摇杆第一臂配合槽；152摇杆第二臂；16滑块；第三中心17s；17-21第一分连杆；17-22第二分连杆；17-23支撑件连杆；17-1s第一分中心；17-2s第二分中心；17-3s第三分中心；17-4s第四分中心；18支撑件；18s支撑件连杆中心；19s第五中心；
2接触系统；2s触头机构中心；
21第一触头结构；211第一触头；2110第一触点；2111第一触头臂；212第一支持；2120第
一支持主体；21200第一支持腔；21201第一触头插入孔；2121主齿轮；2122分隔件驱动齿轮； 2123跳扣轴；2124第一支持轴；2125第一支持承击部；2126第一触头限位块；2127第一触头弹簧轴；2128跳扣限位块；213第一触头弹簧；21s第一中心；
22第二触头结构；221第二触头；2210第二触点；2211第二触头臂；222第二支持；2220第
二支持主体；2221从齿轮；2222第二支持轴；2223分隔件限位台；2224第二触头限位块；22s第二中心；23分隔件；230分隔件背板；231分隔件齿条；232分隔部；2320分隔板；2321加强连接部；233分隔件第一滑筋；234分隔件第二滑筋；
31进线端子；32出线端子；33载流导电板；330导电板接线段；331导电板第一中间段；332
导电板第二中间段；333导电板配合段；334导电板第三中间段；335导电板双金调整段；336导电板支撑臂；34出线导电板；35引弧板；36进线导电板；
4灭弧室；40灭弧栅片；
5热磁脱扣机构；51磁轭；510磁轭主体；5100磁轭主体底板；5101磁轭主体侧板；511磁轭
支撑臂；5110磁轭支撑槽；512磁轭限位臂；52衔铁；520衔铁主板；521衔铁驱动板；5210衔铁限位板；5211衔铁驱动指；522衔铁底足；523衔铁挂簧孔；53衔铁弹簧；54磁脱扣传动件；540磁脱扣传动件安装部；541磁脱扣传动件第一臂；542磁脱扣传动件第二臂；543磁脱扣传动件加强筋；54s第三中心；55热脱扣传动件；550热脱扣传动件安装部；5500热脱扣传动件安装孔；551热脱扣传动件受动臂；5510传动件受动臂连接部；5511传动件受动臂受动部；552热脱扣传动件驱动臂；55s第四中心；56双金属片；57调节螺钉；58双金支架；590线圈绕组；591线圈骨架；592磁轭；593顶杆。
具体实施方式
以下结合说明书附图给出的实施例，进一步说明本发明的开关电器的具体实施方式。本发明的开关电器不限于以下实施例的描述。
本发明公开一种开关电器，优选为断路器，其包括开关壳体h(优选为断路器壳体)以及设置在开关壳体h内的操作装置，操作装置包括操作机构1和接触系统2，操作机构1和接触系统2驱动相连，以驱动接触系统2闭合或断开。进一步的，所述开关电器还包括进线端子31和出线端子32，接触系统2串接在进线端子31和出线端子32之间，开关电器通过进线端子31和出线端子32与外部电路(也即是开关电器所在电路)电连。
如图1-2、6-7所示，所述接触系统2包括触头机构，触头机构包括相对并排设置的第一触头结构21和第二触头结构22，第一触头结构21和第二触头结构22的转动方向保持相反，二者相向同步转动而闭合且相背同步转动而分断，也即是使第一触头结构21和第二触头结构22的触点(第一触头结构21的第一触点2110和第二触头结构22的第二触点2210)相向移动而闭合(第一触点2110和第二触点2210彼此靠近以闭合)或相背移动而分断(第一触点2110和第二触点2210彼此远离以分断)。进一步的，所述第一触头结构21包括绕第一中心21s枢转设置的第一支持212和设置在第一支持212上的第一触头211，第一触头211还可以称为第一动触头，第一触头211在第一支持212的带动下绕第一中心21s转动，也即是第一支持212承载第一触头211(第一动触头)并带动其转动；所述第二触头结构22包括绕第二中心22s枢转设置的第一支持222和设置在第二支持222上的第二触头221，第二触头221还可以称为第二动触头，第二触头221在第二支持222的带动下绕第二中心22s转动，也即是第二支持222承载第二触头221(第二动触头)并带动其转动。进一步的，所述第一触头211插置在第一支持212上，另一端设有第一触点2110；所述第二触头221一端插置在第二支持222上，另一端设置第二触点2210。
所述第一支持212和第二支持222分别枢转设置在第一支撑结构上，第一支撑结构由开关壳体h实现。进一步的，如图3所示，所述开关壳体h包括相对扣合在一起的壳体基座和壳体盖(图中未示出)，壳体基座包括设置在其底板上的第一支持轴柱和第二支持轴柱，第一支持轴柱和第二支持轴柱中部分别与第一支持212和第二支持222的转轴(也即是第一支持轴2124和第二支持轴2222)配合的第一基座轴孔h21和第二基座轴孔h22。
进一步的，如图1-2所示，所述第一触头结构21和第二触头结构22对称枢转设置，对称枢转设置指的是第一触头结构21和第二触头结构22的转动中心对称而且转动角度对称，从而实现第一触头结构21和第二触头结构22在有限空间内转动而具有更大的开距，节约开关电器的内部空间，提高分断性能，而且便于设计和布局，还提高了美观性。当然，作为其它实施例，第一触头结构21和第二触头结构22也可以为非对称设置。
所述操作机构1与第一触头结构21和/或第二触头结构22驱动相连，以驱动第一触头结构21和第二触头结构22相向同步转动或相背同步转动，具体的：
如图1-2所示，为所述操作机构1与接触系统2驱动相连的第一种实现方式：所述第一触头结构21和第二触头结构22传动配合且联动转动设置(也即是第一触头结构21和第二触头结构22中，其中一个转动，另外一个直接受前者驱动而同步转动)，操作机构1与第一触头结构21驱动相连，操作机构1驱动第一触头结构21转动，第一触头结构21同时驱动第二触头结构22转动，以实现第一触头结构21和第二触头结构22的相向同步转动或相背同步转动。所述第一触头结构21和第二触头结构22传动配合，由于二者对称同步枢转设置，有利于二者之间的传动结构的设计，传动效率更高更可靠，保证二者的可靠闭合与分断。当然，所述操作机构1还可以与第二触头结构22驱动相连，操作机构1驱动第二触头结构22转动，第二触头结构22同时驱动第一触头结构21转 动，以实现第一触头结构21和第二触头结构22的相向同步转动或相背同步转动。进一步的，所述第一触头结构21和第二触头结构21一端分别绕第一中心21s和第二中心22s枢转设置，另一端闭合或分断，以闭合或分断接触系统2。
如图9a-11所示，为所述接触系统2的第一实施例，操作机构1与第一触头结构21的第一支持212联动，第一支持212与第二支持222联动，操作机构1驱动第一支持212转动带动第一触头211转动，且第一支持212驱动第二支持222转动带动第二触头转动，实现第一触头211和第二触头221的相向转动或相背同步转动。具体的：所述第一支持212包括主齿轮2121；所述第二支持222包括从齿轮2221；所述主齿轮2121与从齿轮2221啮合，实现了第一触头结构21和第二触头结构22的驱动配合。所述第一支持和第二支持通过齿轮啮合实现同步转动，工作更可靠、稳定。
进一步的，所述主齿轮2121的轴心与第一中心21s重合，从齿轮2221的轴心与第二中心22s重合。当然，所述主齿轮2121的轴心也可以不与第一中心21s重合，从齿轮2221的轴心也可以不与第二中心22s重合。
进一步的，所述主齿轮2121和从齿轮2221均为扇形齿轮。
如图9a-11所示，所述第一支持212包括绕第一中心21s枢转设置的第一支持主体2120，主齿轮2121的轮齿沿第一支持主体2120的周向依次布置在第一支持主体2120的周向侧壁上，也即是第一支持主体2120和布置在第一支持主体2120的周向侧壁上的轮齿组成了主齿轮2121；所述第二支持222包括绕第二中心22s枢转设置的第二支持主体2220，从齿轮2221的轮齿沿第二支持主体2220的周向依次布置在第二支持主体2220的周向侧壁上，也即是第二支持主体2220和布置在第二支持主体2220的周向侧壁上的轮齿组成了从齿轮2221；所述主齿轮2121和从齿轮2221的轮齿位于第一支持主体2120和第二支持主体2220之间且彼此啮合配合。
作为其它实施例，所述第一触头结构21和第二触头结构22还可以间接传动相连，也即是第一触头结构21和第二触头结构22通过独立于二者中间传动结构传动相连，以实现第一触头结构21和第二触头结构22的联动。
所述接触系统2还包括触头复位弹簧，触头复位弹簧向第一触头结构21或第二触头结构22施加作用力，使第一触头结构21和第二触头结构22相背转动而分断。进一步的，所述触头复位弹簧向第一触头结构21的第一支持212施加作用力和/或向第二触头结构22的第二支持222施加作用力，使第一触头结构21和第二触头结构22相背同步转动而分断。
具体的，如图9b所示，所述第二触头结构22包括第二复位弹簧223，第二复位弹簧223作为触头复位弹簧，向第二触头结构22施加作用力，使第二触头结构22向其分断位置转动，第二触头结构22同时驱动第一触头结构21向其分断位置转动，也即是第二复位弹簧223驱动第二触头结构22和第一触头结构21相背同步转动而分断。进一步的，所述第二复位弹簧223为扭簧，第二支持222还包括第二支持弹簧限位台2225，第二复位弹簧223与第二支持222同轴心设置，第二复位弹簧223一端与第二支持弹簧限位台2225配合，另一端与开关壳体配合。
作为其它实施例，所述第一触头结构21设置第一复位弹簧，第二触头结构22取消设置第二复位弹簧，第一复位弹簧向第一触头结构21施加作用力，使第一触头结构21向其分断位置转动，第一触头结构21同时驱动第二触头结构22向其分断位置转动，也即是第一复位弹簧驱动第一触头结构21和第二触头结构22相背同步转动而分断。进一步的，所述第一复位弹簧为扭簧，其设置方式近似于第二复位弹簧223。
本实施例接触系统，由于第一触头结构21和第二触头结构22对称同步枢转设置且二者传动配合，因此仅需设置一个触头复位弹簧，也即是第二复位弹簧223或第一复位弹簧，就可以实现第一触头结构21和第二触头结构22的快速分断，结构简单动作可靠。
如图1-2所示，所述操作机构1包括操作件11、主连杆12和搭扣传动结构，操作件11和搭扣传动结构分别枢转设置，主连杆12分别与操作件11和搭扣传动结构铰接，搭扣传动结构包括分别枢转设置且搭扣配合的跳扣13和锁扣结构，锁扣结构包括枢转设置且与跳扣13搭扣配合的锁扣14，包括搭扣传动结构与第一触头结构21或第二触头结构22传动相连。进一步的，所述搭扣传动结构还包括枢转设置的转动板，跳扣13和锁扣14分别枢转设置在转动板上。进一步的，所述操作件11枢转设置在第一支撑结构上，第一支撑结构由开关壳体h实现。
如图1-2所示，为所述操作机构1与接触系统2的一种具体连接方式：所述跳扣13和锁扣14分别枢转设置在第一支持212上且搭扣配合，第一支持212作为转动板，主连杆12两端分别与操作件11和跳扣13铰接；所述操作件11受外力驱动而转动，通过主连杆12驱动跳扣13、锁扣14和第一支持212整体绕第一中心21s转动而闭合或分断接触系统2；所述锁扣结构受外力(例如锁扣结构受热磁脱扣机构5的作用力，热磁脱扣机构5以及其余锁扣结构的配合关系将在后文中进行详细说明)驱动而转动解除锁扣结构和跳扣13的搭扣配合(也即是锁扣14和跳扣13的搭扣配合)。所述操作机构1的工作原理和动作过程均为本领域现有技术，在此不再详细描述。进一步的，如图6-7、9a、11所示，所述第一支持212还包括用于枢转安装跳扣13的跳扣轴2123、用于枢转安装锁扣14的锁扣轴和用于枢转安装第一支持212的第一支持主体2120的第一支持轴2124，锁扣轴与第一支持轴2124同轴设置，跳扣轴2123和锁扣轴均设置在第一支持主体2120的轴向一端上。具体的，所述跳扣13转动套设在跳扣轴2123上，锁扣14转动套设在锁扣轴上。
如图4、9a、11所示，所述第一支持212还包括锁扣转动限位台，锁扣转动限位台设置在锁扣轴径向一侧且与锁扣轴同轴设置；如图4所示，所述锁扣14包括锁扣安装孔和设置在锁扣安装孔 内侧壁上的锁扣止挡凸台，锁扣14通过锁扣安装孔套设在锁扣轴和锁扣转动限位台上，锁扣转动限位台与锁扣止挡凸台配合且位于锁扣轴的径向两侧，以限定锁扣14相对于第一支持212的转动角。
如图1-2、4-5a、9a、11所示，所述第一支持212还包括设置在跳扣轴2123一侧的跳扣限位块2128，跳扣限位块2128与跳扣13限位配合，限定跳扣13相对于第一支持212的第一支持主体2120摆动的范围。
如图9和11所示，所述第一支持212还包括设置在第一支持主体2120的径向一侧上的第一支持承击部2125，第一支持承击部2125受撞击(例如受磁脱扣传动件54或者磁脱扣结构的撞击)使第一支持212向分断方向转动，从而加速第一支持212向分断方向转动的速度，提高了接触系统2的分断效率。
作为其它实施例，所述跳扣13和锁扣14还可以分别枢转设置在第二支持222上且搭扣配合，跳扣13、锁扣1和第二支持222在操作件11的驱动下绕第二中心22s转动而闭合或断开接触系统2。
如图1-2、5a所示，所述操作机构1的锁扣结构还包括联动摇杆15，联动摇杆15与锁扣14同转轴且同步转动设置，联动摇杆15和锁扣14沿锁扣14的转轴方向层叠设置，联动摇杆15受热磁脱扣机构的热脱扣结构的驱动而转动，联动摇杆15带动锁扣14转动而解除其与跳扣13的搭扣配合，锁扣14受热磁脱扣机构的磁脱扣结构的驱动而转动，从而解除锁扣14与跳扣13的搭扣配合。进一步的，所述热脱扣结构通过枢转设置的热脱扣传动件55直接驱动联动摇杆15转动，联动摇杆15带动锁扣14转动而解除其与跳扣13的搭扣配合，磁脱扣结构通过枢转设置的磁脱扣传动件54直接驱动锁扣14转动而解除与跳扣13的搭扣配合。
如图1-2、19所示，所述锁扣结构、热脱扣传动件55和磁脱扣传动件54分布于一个三角形的三个顶点处。进一步的，所述锁扣14和联动摇杆15均绕第一中心21s枢转设置，磁脱扣传动件54绕第三中心54s枢转设置，热脱扣传动件55绕第四中心55s枢转设置，第一中心21s、第三中心54s和第四中心55s分布于一个三角形的三个顶点处。
如图5a所示，所述锁扣14、第一支持212和联动摇杆15沿锁扣14的转轴方向依次层叠设置，锁扣14和联动摇杆15分别位于第一支持212两侧。
如图4、5a所示，所述锁扣14包括锁扣主体140和设置在锁扣主体140上的锁扣第二臂142，锁扣14通过锁扣主体140枢转设置；所述联动摇杆15包括摇杆安装部150和设置在摇杆安装部150上的摇杆第一臂151，联动摇杆15通过摇杆安装部150枢转设置，锁扣第二臂142和摇杆第一臂151驱动相连。进一步的，所述锁扣第二臂142包括锁扣第二臂连接部1420和锁扣第二臂受动部1421，锁扣第二臂连接部1420一端与锁扣主体140相连，另一端与锁扣第二臂受动部1421相连；所述摇杆第一臂151设有摇杆第一臂配合槽1510，锁扣第二臂受动部1421插置在第一臂配合槽1510中，以实现锁扣14和联动摇杆15的同步转动。进一步的，所述锁扣第二臂受动部1421的延伸方向平行于锁扣14的转轴方向。
如图4、5a所示，所述联动摇杆15还包括与摇杆主体150相连的摇杆第二臂152，锁扣14还包括与锁扣主体14相连的锁扣第一臂141；多个所述操作机构1并排联动设置时，相邻两个操作机构1的摇杆第二臂152和锁扣第一臂141通过联动轴14-15相连，从而实现各操作机构的联动脱扣。
如图13所示，所述联动摇杆15的摇杆主体150包括设置其中部的摇杆主体轴孔1500，摇杆主体150通过摇杆主体轴孔1500转动套设在壳体基座的第一支持轴柱上。
如图2-5a所示，所述锁扣第一臂141和锁扣第二臂142的夹角为钝角，摇杆第一臂151和摇杆第二臂152的夹角为钝角。进一步的，所述锁扣第一臂141与摇杆第二臂152、锁扣第二臂142与摇杆第一臂151，在锁扣14的转轴方向上对应设置。
如图12所示，所述第一触头结构21还包括第一触头弹簧213，第一触头211相对于第一支持212转动设置，第一触头弹簧213设置在第一触头211和第一支持212之间。所述第一触头弹簧213向第一触头211施加第一作用力。所述第一触头211与第二触头222分离后，也即是第一触头211的第一触点2110和第二触头221的第二触点2210脱离接触后，第一作用力使第一触头211与第一支持212限位配合且保持相对静止。所述第一触头211和第二触头221闭合时，第一触头211相对于第一支持212转动使第一触头弹簧213储能，第一作用力使第一触头211压紧第二触头221，也即是第一触头弹簧213向第一触头211提供超程力，保证第一触头211和第二触头221可靠闭合。
如图12所示，所述第一触头211、第一支持212和第一触头弹簧213通过以下方式装配：所述第一支持212包括第一支持主体2120和第一触头限位块2126，第一支持主体2120中部设有第一支持腔21200，第一支持腔21200的侧壁上设有第一触头插入孔21201，第一触头211一端由第一触头插入孔21201插入第一支持腔21200内，第一触头限位块2126设置在第一支持主体2120的外侧壁上且位于第一触头插孔21201一侧，第一触头弹簧213为设置在第一支持腔21200内的扭簧，一端与第一支持腔21200的内侧壁限位配合，另一端与第一触头211插入第一支持腔21200的一端限位配合使第一触头211抵在第一触头限位块2126上，第一触头211以第一触头限位块2126为支撑相对于第一支持212转动设置；上述装配方式，结构简单、装配可靠，保证第一触头结构21的可靠动作；所述第一触头限位块2126还用于遮挡第一触头211凸出在第一支持212外部且靠近第一支持212的部分，有利于增大第一触头结构21和第二触头结构22分断后的电气间隙和爬电距离。 进一步的，所述第一支持212还包括设置在第一支持腔21200内的第一触头弹簧轴2127，第一触头弹簧213套设在第一触头弹簧轴2127上。
作为其它实施例，所述第一触头弹簧213还可以设置为拉簧，拉簧两端则分别挂至第一触头211插置在第一支持腔21200内的一端和第一触头弹簧轴2127上，当然，第一触头弹簧轴2127的设置位置则需要相应调整。
结合图1-2、4、6、9a、11-12所示，所述锁扣轴2123、一根第一支持轴2124和跳扣限位块2128设置在第一支持主体2120的轴向一端上，第一支持腔21200设置在第一支持主体2120的轴向中部，另一根第一支持轴2124设置在第一支持主体2120的轴向另一端上。进一步的，所述第一支持腔21200面向联动摇杆15的一侧敞口设置。
如图10所示，所述第二触头结构22还包括第二触头弹簧(图中未示出)，第二触头221相对于第二支持222转动设置，第二触头弹簧设置在第二触头221和第二支持222之间；所述第二触头弹簧向第二触头221施加第二作用力。所述第二触头221与第一触头211分离后，也即是第二触头221的第二触点2210和第一触头211的第一触点2110脱离接触后，第二作用力使第二触头221与第二支持222限位配合且保持相对静止。所述第二触头221和第一触头211闭合时，第二触头221相对于第二支持222转动使第二触头弹簧还能，第二作用力使第二触头221压紧第一触头211，也即是第二触头弹簧向第二触头221提供超程力，保证第二触头221和第一触头211可靠闭合；所述第二触头限位块2224还用于遮挡第二触头221凸出在第二支持222外部且靠近第二支持222的部分，有利于增大第一触头结构21和第二触头结构22分断后的电气间隙和爬电距离。
参照图12所示，所述第二触头221、第二支持222和第二触头弹簧通过以下方式装配：第二支持222包括第二支持主体2220和第二触头限位块2224，第二支持主体2220中部设有第二支持腔，第二支持腔的侧壁设有第二触头插入孔，第二触头221一端由第二触头插入孔插入第二支持腔内，第二触头限位块2224设置在第二支持主体2220的外侧壁上且位于第二触头插入孔一侧，第二触头弹簧为设置在第二支持腔内的扭簧，一端与第二支持腔的内侧壁限位配合，另一端与第二触头221插入第二支持腔的一端限位配合使第二触头抵在第二触头限位块2224上，第二触头221以第二触头限位块2224为支撑相对于第二支持222转动设置。进一步的，所述第二支持222还包括设置在第二支持腔内的第二触头弹簧轴，第二触头弹簧套设在第二触头弹簧轴上。
进一步的，如图9a和10所示，所述第二支持222还包括第二支持轴222，两根第二支持轴222分别设置在第二支持主体2220的轴向两端上。
作为其它实施例，所述第二触头弹簧还可以设置为拉簧，拉簧两端则分别挂至第二触头221插置在第二支持腔内的一端和第二触头弹簧轴上，当然，第二触头弹簧轴的设置位置则需要相应调整。
如图9a、11-12所示，所述第一触头211包括第一触点2110和第一触头臂2111，第一触头臂2111为V型结构，其包括第一触头臂外段和第一触头臂内段，第一触头臂外段一端设有第一触点2110，另一端与第一触头臂内段一端折弯相连，第一触头臂内段另一端插置在第一支持212内，第一触头臂外段相对于第一触头臂内段向远离第二触头221的方向折弯。进一步的，所述第一触头臂外段和第一触头臂内段的夹角为钝角。
如图6-7、9a-12所示，所述第一触头211和第二触头212互为对称结构，在此不再对第二触头212的结构展开描述。
如图1-2、6-7所示，所述接触系统2还包括分隔件23，分隔件23包括分隔部232；如图2所示，所述第一触头结构21和第二触头结构22闭合时，分隔件23受操作机构1或接触系统2的驱动使分隔部232移出第一触头结构21的第一触点2110和第二触头结构22的第二触点2210之间；如图1所示，所述第一触头结构21和第二触头结构22分断时，分隔件23受驱动使分隔部232移入第一触点2110和第二触点2210之间；所述分隔件23能在第一触头结构21和第二触头结构22分断过程中，拉长和屏蔽二者之间产生的电弧，有利于提高分断性能和接触系统2的载流能力。进一步的，所述分隔件23整体移动设置，受驱动而向第一方向或第二方向移动，第一方向和第二方向互为反方向，使分隔部232移入或移出第一触点2110和第二触点2210之间。需要指出的，所述第一触点2110和第二触点2210指的是第一触头结构21和第二触头结构22的相互接触区域，既可以指代狭义上的独立设置的触点结构，也可以是第一触头结构21和第二触头结构22上用于彼此接触的部分。具体的，如图1、2、19、21、23-25所示方向，所述第一触头结构21和第二触头结构22闭合时，挡板23受驱动上移而移出第一触点2110和第二触点2210之间；所述第一触头结构21和第二触头结构22分断时，挡板23受驱动下移而移入第一触点2110和第二触点2210之间。
如图1所示，所述第一触头结构21和第二触头结构22分断后，分隔件23将第一触头结构21的第一触头211(尤其是第一触头211凸出在第一支持212外部的部分)和第二触头结构22第二触头221(尤其是第二触头结构221凸出在第二支持222外部的部分)完全隔开，也即是第一触头211和第二触头221，在垂直于分隔件23的移动方向的方向上，一个相对于另一个，被分隔件23完全遮挡。
作为其它实施例，所述分隔件23还可以转动设置，第一触头结构21和第二触头结构22闭合时，分隔件23受驱动而摆动使分隔部232移出第一触点2110和第二触点2210之间，第一触头结构21和第二触头结构22分断时，分隔件23受驱动而摆动使分隔部232移入第一触点2110和第二触点2210之间。需要说明的是，本实施例的分隔件23用于分隔对称同步枢转设置的第一触头结构21和第二触头结构22，作为其它实施例，也可以用于分隔同步设置的非对称的两个都移动配合的 第一触头结构21和第二触头结构22。
如图1-2、6-7所示，本发明开关电器中，分隔件23受第一触头结构21的驱动而动作，使分隔部232移入或移出第一触点2110和第二触点2210之间。
如图6-7所示，所述第一支持212包括分隔件驱动齿轮2122，分隔件驱动齿轮2122的轴心与第一中心21s重合；所述分隔件23包括与分隔部232相连的分隔件齿条231，分隔件驱动齿轮2122与分隔件齿条231啮合，第一支持212受操作机构1驱动而转动，第一支持212带动分隔件驱动齿轮2122转动，分隔件驱动齿轮2122则通过分隔件齿条231驱动分隔件23直线移动，以使分隔件23的分隔部232移入或移出第一触点2110和第二触点2210之间。进一步的，所述分隔件驱动齿轮2122的轮齿沿第一支持212的第一支持主体2120的周向依次布置在第一支持主体2120的周向侧壁上，也即是，第一支持主体2120和布置在第一支持主体2120周向侧壁上的分隔件驱动齿轮2122的轮齿组成分隔件驱动齿轮2122。
如图9a-9b和11所示，所述分隔件驱动齿轮2122的轮齿和主齿轮2121的轮齿沿第一支持212的轴向并排设置。
如图6-7所示，所述第二支持222包括分隔件限位台2223，分隔件限位台2223和分隔件驱动齿轮2122分别位于分隔件齿条231两侧，分隔件限位台2223与分隔件齿条231限位配合使分隔件齿条231与分隔件驱动齿轮2122保持啮合。进一步的，所述分隔件齿条231包括设置在其正面的齿和设置在其背面的齿条限位侧面，分隔件限位台2223与齿条限位侧面抵接限位，使分隔件齿条231与分隔件驱动齿轮2122保持啮合。
如图6-7、9a、10所示，所述分隔件限位台2223为扇形台，其圆心与第二中心22s重合，其包括限位弧形面，限位弧形面与分隔件齿条231线接触，从而保证限位效果的同时，减小二者之间的摩擦力。
如图1-2、6、8所示，所述分隔件23还包括分隔件背板230，分隔件背板230在分隔件齿条231的宽度方向(分隔件齿条231的各齿并排的方向为分隔件齿条231的长度方向，分隔件齿条231的单个齿的延伸方向为分隔件231的宽度方向，长度方向和宽度方向相互垂直)上位于分隔件齿条231一侧且与其相连，分隔件齿条231和分隔件背板230在分隔件齿条231的长度方向(以分隔件齿条231的各齿的并排方向为分隔件齿条231的长度方向)上的一端均与分隔部232相连；所述分隔件背板230有利于加强分隔件齿条231的强度。进一步的，所述分隔件23整体成L型结构，分隔部231作为L型结构的一条边，分隔件齿条231和分隔件背板230作为L型结构的另一条边。
如图6-8所示，所述分隔部232包括分隔板2320和加强连接部2321，分隔件齿条231和分隔件背板230在分隔件齿条231的长度方向上的一端均与加强连接部2321相连，分隔件背板230和分隔件齿条231位于加强连接部2321一侧，分隔板2320位于加强连接部2321另一侧，加强连接部2321的厚度大于分隔板2320的厚度，从增强分隔件齿条231、分隔件背板230与分隔部232的连接强度。进一步的，所述加强连接部2320在其厚度方向上的两端，分别凸出在分隔板2320的两侧。
如图1-3、6、8所示，所述分隔件23还包括分别设置在分隔部232两端的分隔件第一滑筋233和分隔件第二滑筋234，分隔件第一滑筋233和分隔件第二滑筋234分别用于与固定设置的第一导向槽h23和第二导向槽(图中未示出)滑动配合，从而限定分隔件23的移动路径，保证分隔件、第一触头结构21和第二触头结构23的可靠配合。进一步的，所述第一导向槽h23和第二导向槽分别设置在开关壳体h的壳体基座和壳体盖上。
如图1-2、4、5a所示，本发明开关电器还包括热磁脱扣装置，热磁脱扣装置用于在开关电器所在电路发生过载或短路故障时，驱动操作机构1脱扣，使接触系统2分断开关电器所在电路。
所述热磁脱扣装置包括热磁脱扣机构5，热磁脱扣机构5包括热脱扣结构和磁脱扣结构，热脱扣结构用于在开关电器所在电路发生过载故障时驱动操作机构1脱扣分闸，磁脱扣结构用于在开关电器所在电路发生短路故障时驱动操作机构1脱扣分闸。进一步的所述热脱扣结构包括双金属片56，双金属片56长度方向上的一端与磁脱扣结构固定相连；在所述双金属片56的长度方向上，磁脱扣结构和热脱扣结构并排设置，此种布局方式有利于减小热磁脱扣机构5所需安装空间，使热磁脱扣机构5能够在狭长空间内完成安装；所述热脱扣结构和磁脱扣结构为一体式模块化结构，便于运输、安装和拆卸，而且提高热磁脱扣机构的各部件的定位准确性，使热磁脱扣机构不会受用于安装热磁脱扣机构的壳体的形变而发生变化，保证了热磁脱扣机构的动作性能；而且还能实现热脱扣结构和磁脱扣结构从不同方向与操作机构配合，便于结构和布局设计，还能节约双金属片的材料用量。进一步的，所述双金属片56一端为用于与磁脱扣结构固定相连的双金属片固定端且另一端为向外输出第一脱扣驱动力的双金属片驱动端；所述磁脱扣结构包括磁脱扣驱动件，磁脱扣驱动件一端为用于向外输出第二脱扣驱动力的驱动件驱动端且另一端为驱动件安装端；在所述双金属片56的长度方向上，双金属片驱动端、双金属片固定端、驱动件驱动端和驱动件安装端依次布置，有利于降低热磁脱扣机构5所需安装空间。具体的，如图4、5a、20所示方向，所述双金属片驱动端、双金属片固定端、驱动件驱动端和驱动件安装端由上而下依次布置。
如图1-2、19所示，所述热脱扣装置还包括分别枢转设置的热脱扣传动件55与磁脱扣传动件54，磁脱扣传动件54、热脱扣传动件55和操作机构1的锁扣结构分布于一个三角形的三个顶点处；所述热磁脱扣机构5所在电路发生过载故障时，热脱扣结构通过热脱扣传动件55驱动锁扣结构转动而解除与跳扣13的搭扣配合，使操作机构1脱扣；所述热磁脱扣机构5所在电路发生短路故障 时，磁脱扣结构通过磁脱扣传动件54驱动锁扣结构转动而解除与跳扣13的搭扣配合，使操作机构1脱扣。所述热脱扣结构通过热脱扣传动件与锁扣结构驱动配合，磁脱扣结构通过磁脱扣传动件与锁扣结构驱动配合，一则保证了热磁脱扣机构与操作机构的传动路径的可靠性和稳定性，二来热脱扣传动件和磁脱扣传动件均采用枢转设置方式，所需动作空间和安装空间小，有利于节约空间。
如图1-2、4-5b、15-17所示，为所述热磁脱扣机构5的第一实施例。
第一实施例热磁脱扣机构5中，其磁脱扣结构为拍合式电磁脱扣器，其包括载流导电板33以及配合使用的磁轭51和衔铁52，载流导电板33用于与待保护电路(也即是本发明开关电器接入的电路)串联，具体到本实施例，载流导电板33与接触系统2串联且一并串联入开关电器所在电路；所述衔铁52作为磁脱扣驱动件，其一端转动设置且该端为衔铁枢置端(衔铁枢置端作为驱动件安装端)，另一端摆动设置且该端为衔铁驱动端(衔铁驱动端作为驱动件驱动端)，衔铁52摆动以与磁轭51吸合或分离，载流导电板33的导电板配合段333从磁轭51中部穿过且位于磁轭51和衔铁52之间，导电板配合段333所在平面平行于衔铁52的转动轴线且导电板配合段333插入磁轭51和衔铁52之间的方向垂直于衔铁52的转动轴线，导电板配合端333的延伸方向与导电板配合端333插入磁轭51和衔铁52之间的方向相同；所述双金属片56的双金属片固定端与载流导电板33固定相连且电连；所述开关电器所在电路发生过载或短路故障时，载流导电板33中流过过载或短路电流，使双金属片56受热弯曲或使磁轭51吸合衔铁52，从而驱动操作机构1脱扣分闸。所述热磁脱扣机构5中，双金属片固定端与载流导电板33固定相连，衔铁52转动设置在磁轭51上，磁轭51与载流导电板33固定相连，使热磁脱扣机构5成为一体式结构，使热磁脱扣机构5作为一个整体模块，便于装配和拆卸。
如图1-2所示，所述载流导电板33还作为串接接触系统2和进线端子31的导电板。
所述热脱扣结构和第一实施例的磁脱扣结构的上述布局方式，与传统的将双金组件置于磁脱扣结构的磁轭和衔铁之间的方式相比，有利于减小磁轭51的尺寸规格，降低热磁脱扣机构5的整体厚度(也即是由衔铁52向磁轭51的方向上的厚度)。
如图1-2、4-5b、15所示，所述磁脱扣结构还包括衔铁弹簧53，衔铁弹簧53与衔铁52相连，向衔铁52施加作用力，使衔铁52具有与磁轭51分离的转动趋势，衔铁52被磁轭51吸合时，需克服衔铁弹簧53施加给衔铁52的作用力。进一步的，所述载流导电板33还包括导电板第二中间段332，导电板第二中间段332一端与导电板配合段333远离双金组件的一端折弯相连，衔铁弹簧53一端与衔铁52的衔铁驱动端相连，另一端与导电板第二中间段332相连。
如图5a、15所示，所述热脱扣结构还包括双金支架58，双金支架58包括支架竖直部580和支架水平部581，支架竖直部580一端与双金属片56相连，另一端与支架水平部581折弯相连；所述载流导电板33还包括与导电板配合段333折弯相连的导电板第三中间段334，导电板第三中间段334位于磁脱扣结构和双金支架58之间，支架水平部581与导电板第三中间段334平行层叠且固定相连，也即是双金属片56通过双金支架58与磁脱扣结构固定相连。进一步的，所述所述双金支架58为L型结构，支架竖直部580和支架水平部581分别作为L型结构的两条侧边。
如图5a、15所示，所述载流导电板33还包括与支架竖直部580相对的导电板双金调节段335，导电板双金调节段335与导电板第三中间段334折弯相连，导电板双金调节段335和导电板配合段333分别向导电板第三中间段334两侧折弯，导电板双金调节段335设有调节段螺孔；所述热脱扣结构还包括双金调节螺钉57，双金调节螺钉57与调节段螺孔螺纹配合，双金调节螺钉57一端用于抵压支架竖直部58，用于调节双金属片56。进一步的，所述导电板配合段333、导电板第三中间段334和导电板双金调节段335依次直角折弯相连。
如图1-2、5a所示，所述双金属片56通过热脱扣传动件55直接驱动操作机构1的联动摇杆15转动，联动摇杆15带动锁扣14转动而解除其与跳扣13之间的搭扣配合。
作为其它实施例，所述热脱扣传动件55直接驱动锁扣14转动而解除锁扣14与跳扣13的搭扣配合。进一步的，所述热脱扣传动件55的热脱扣传动件驱动臂552直接驱动锁扣14的锁扣第二臂142。
如图1-2、5a所示，所述热脱扣传动件55包括热脱扣传动件安装部550、热脱扣传动件受动臂551和热脱扣传动件驱动臂552，热脱扣传动件55通过热脱扣传动件安装部550枢转设置，热脱扣传动件受动臂551一端与热脱扣传动件安装部550相连，另一端与双金属片56驱动配合，热脱扣传动件驱动臂552一端与热脱扣传动件安装部550相连，另一端与操作机构1驱动配合以驱动操作机构1的锁扣14转动而解除其与跳扣13的搭扣配合，热脱扣传动件受动臂551和热脱扣传动件驱动臂552沿热脱扣传动件安装部550的轴向分布。进一步的，所述热脱扣传动件驱动臂552的自由端与操作机构1的联动摇杆15驱动配合以驱动联动摇杆15转动，联动摇杆15带动锁扣14转动而解除其与跳扣13的搭扣配合。进一步的，所述热脱扣传动件受动臂551和热脱扣传动件驱动臂552的夹角≤90°。
如图14所示，所述热脱扣传动件安装部550包括设置其中部的热脱扣传动件安装孔5500，壳体基座设有热脱扣杠杆轴h55，热脱扣传动件安装部550通过热脱扣传动件安装孔5500转动套设在热脱扣杠杆轴h55。
如图14所示，所述热脱扣传动件受动臂551包括传动件受动臂连接部5510和传动件受动臂受动部5511，传动件受动臂连接部5510一端与热脱扣传动件安装部550，另一端与传动件受动臂受动部5511，传动件传动臂受动部5511的延伸方向与热脱扣传动件55的转轴方向平行且垂直于热 磁脱扣机构5的双金属片56的延伸方向。
如图1-2、4-5b、15-16所示，所述磁轭51包括磁轭主体510以及分别设置在磁轭主体510两端的磁轭支撑臂511、磁轭限位臂512；所述衔铁52的两端分别为衔铁枢置端和衔铁驱动端，衔铁枢置端转动支撑在磁轭支撑臂511上且与磁轭支撑臂511限位配合而限制衔铁52沿其转动轴线方向的移动，衔铁驱动端与磁轭限位臂512限位配合而限制衔铁52沿其转动轴线方向移动；所述磁轭51和衔铁52的装配方式简单且可靠，磁轭51在支撑衔铁52转动的同时对衔铁52形成可靠限位，保证衔铁52可靠稳定的在预定位置转动，从而可靠实现短路保护功能。
如图1-2、4-5b、15-16所示，所述磁轭主体510为U型结构，其包括磁轭主体底板5100和磁轭主体侧板5101，磁轭主体底板5100两端分别与两块磁轭主体侧板5101相对间隔设置，导电板配合段333从两块磁轭主体侧板5101之间穿过且与磁轭主体底板5100相对固定相连，磁轭主体侧板5101的面向衔铁52的边沿与衔铁52吸合或分离；每块所述磁轭主体侧板5101均设有磁轭支撑臂511和磁轭限位臂512，两块磁轭主体侧板5101上的磁轭支撑臂511相对间隔设置，两块磁轭主体侧板5101上的磁轭限位臂512相对间隔设置，衔铁驱动端转动支撑在两个磁轭限位臂512上，衔铁驱动端在两个磁轭限位臂512之间摆动。进一步的，所述磁轭主体侧板5101的面向衔铁52的边沿两端分别设置磁轭支撑臂511和磁轭限位臂512。
作为其它实施例，所述磁轭主体510还可以包括多于两块的磁轭主体侧板5101，各磁轭主体侧板5101依次并排间隔设置，当然导电板配合段333结构也须相应调整，例如设置供位于中部的磁轭主体侧板5101穿过的开孔；各所述磁轭主体侧板5101均可以设置磁轭支撑臂511和磁轭限位臂512，也可以仅在最外侧的两块磁轭主体侧板5101上设置磁轭支撑臂511和磁轭限位臂512。
如图1-2、4-5b、15-16所示，所述磁轭支撑臂511设有磁轭支撑槽5110，衔铁52还包括相对间隔设置在衔铁枢置端上的两个衔铁底足522，两个衔铁底足522两侧均形成支撑肩，也即是形成在两个衔铁底座522两侧的两个台阶型结构，两个支撑肩分别转动设置在两个磁轭支撑槽5110内，两个衔铁底足522位于两个磁轭支撑臂511之间且分别与两个磁轭支撑臂511限位配合，限制衔铁52沿其轴线方向的移动。进一步的，所述磁轭主体侧板5101面向衔铁52的边沿构成磁轭支撑槽5110的一个侧壁，从而使磁轭51和衔铁52吸合时，衔铁52与磁轭主体侧板5101紧密贴合。
如图5a-5b、16所示，所述磁轭限位臂512的自由端均设有磁轭卡挡，两个磁轭卡挡向两个磁轭限位臂512之间凸起，两个磁轭卡挡与衔铁驱动端限位配合，阻止衔铁驱动端摆出两个磁轭限位臂512之间，以确保衔铁52相对于磁轭52在预定摆动角度范围内摆动。进一步的，所述衔铁驱动端包括衔铁限位板5210和衔铁驱动指5211，衔铁限位板5210位于两个磁轭限位臂512之间且与两个磁轭卡挡限位配合，衔铁驱动指5211用于与操作机构1驱动配合。
如图1-2、4-5b、15-16所示，所述衔铁52还包括衔铁主板520，衔铁主板520位于衔铁支撑臂511和衔铁限位臂512之间且与磁轭主体侧板5101配合，衔铁主板520一端与衔铁底足522相连，另一端与衔铁限位板5210相连。
如图1-2、4所示，所述衔铁52通过磁脱扣传动件54直接驱动锁扣14转动，使锁扣14解除与跳扣13的搭扣配合，使操作机构1脱扣。
如图1-2、5a所示，所述磁脱扣传动件54、热脱扣传动件55和衔铁52的转动中心线平行设置。
如图1-2、15、17所示，所述载流导电板33还包括导电板支撑臂336，导电板支撑臂336与导电板双金调节段335折弯相连，磁脱扣传动件54枢转设置在导电板支撑臂336上。进一步的，所述导电板支撑臂336所在平面垂直于导电板双金调节段335所在平面。进一步的，所述磁脱扣传动件54的转动轴线平行于衔铁52的转动轴线。
如图1-2、4所示，所述磁脱扣传动件54包括磁脱扣传动件第一臂541和磁脱扣传动件第二臂542，磁脱扣传动件第一臂541一端与衔铁52传动配合，另一端与磁脱扣传动件第二臂542折弯相连，磁脱扣传动件第二臂542另一端与锁扣14的锁扣第一臂141传动配合，磁脱扣传动件54通过磁脱扣传动件第一臂541和磁脱扣传动件第二臂542的连接处枢转设置。进一步的，所述磁脱扣传动件54还包括磁脱扣传动件加强筋543，磁脱扣传动件加强筋543两端分别与磁脱扣传动件第一臂541和磁脱扣传动件第二臂542相连，磁脱扣传动件加强筋543提高了磁脱扣传动件54的结构强度，使其能够承受衔铁52的撞击；所述磁脱扣传动件第一臂541和磁脱扣传动件第二臂542的夹角≤90°。进一步的，所述磁脱扣传动件加强筋543为弧形筋，其圆心与磁脱扣传动件54的转动中心重合。
本发明热磁脱扣机构还实现了如下技术效果：热脱扣结构和磁脱扣结构分别通过热脱扣传动件55和磁脱扣传动件54，与联动摇杆15和锁扣14驱动配合，增大了二者的传动路径的间距，避免二者发生干涉，便于布局和结构设计。
如图19-20所示，为所述热磁脱扣机构5的第二实施例：
第二实施例热磁脱扣机构5中，其磁脱扣结构为直动式电磁脱扣器，其包括线圈绕组590、线圈骨架591、磁轭592、顶杆593、固定铁芯和动铁芯，线圈绕组590套设在线圈骨架591上，磁轭592与线圈骨架590相连且围绕线圈绕组590设置，顶杆593作为磁脱扣驱动件且顶杆593的轴向与双金属片56的长度方向相同，顶杆593一端凸出在线圈骨架590外部作为驱动件驱动端，另一端滑动插置在线圈骨架590中部作为驱动件安装端，固定铁芯和动铁芯分别设置在线圈骨架590中部，顶杆593与动铁芯固定相连；所述双金属片56的双金属片安装端与磁轭592固定相连，双 金属片56与线圈绕组590电连。进一步的，所述顶杆593的移动方向与磁脱扣传动件54的转轴方向垂直，与顶杆593的轴向相同。
所述线圈绕组590一端与进线导电板36电连，另一端与双金支架58电连；所述进线导电板36还与进线端子31配合。
所述磁轭592为U型结构，其包括磁轭底板和磁轭侧板，两块磁轭侧板分别与磁轭底板两端折弯相连且分别与线圈骨架591两端固定相连。进一步的，所述磁轭底板和线圈绕组590的两个接线端分别位于线圈骨架590的径向两侧。进一步的，所述线圈绕组590的两个接线端分别向线圈骨架590的轴向两端的两侧延伸。
所述双金支架58与磁轭592固定相连，双金属片56一端与双金支架58固定相连且电连，另一端与热脱扣传动件55传动配合。进一步的，所述双金支架58整体呈L型结构，其包括支架水平部580和支架竖直部581，支架水平部580一端与磁轭592一端固定相连，另一端与支架竖直部581一端折弯相连，支架竖直部581另一端与双金属片56一端固定相连且电连。进一步的，所述支架水平部580与磁轭592的靠近热脱扣结构的磁轭侧板固定相连。
为了适用于上述直动式电磁脱扣器，如图19-20所示，所述磁脱扣传动件54需做如下改进：所述磁脱扣传动件54包括磁脱扣传动件第一臂541和磁脱扣传动件第二臂542，磁脱扣传动件第一臂541一端与磁脱扣结构的顶杆593传动相连，另一端与磁脱扣传动件第二臂542一端折弯相连，磁脱扣传动件第二臂542另一端与操作机构1的锁扣14传动配合，以驱动锁扣14转动使其解除与跳扣13的搭扣配合。进一步的，所述磁脱扣传动件第一臂541和磁脱扣传动件第二臂542整体呈V型结构。
进一步的，所述磁脱扣传动件第一臂541和磁脱扣传动件第二臂542的夹角为钝角。
进一步的，所述磁脱扣传动件54还包括磁脱扣传动件安装部540，磁脱扣传动件54通过磁脱扣传动件安装部540枢转设置。进一步的，所述磁脱扣传动件安装部542设置在磁脱扣传动件第一臂541的与磁脱扣传动件第二臂542相连的一端上。
进一步的，所述磁脱扣传动件54为一体式结构，优选通过金属板剪裁折弯而成。
如图4和9a所示，所述第一支持212的第一支持承击部2125与磁脱扣传动件54的配合过程如下：磁脱扣结构动作时，首先驱动锁扣14转动使其解除与跳扣13的搭扣配合，然后通过第一支持承击部2125驱动第一支持212转动，使第一支持212向分断方向转动。进一步的，所述磁脱扣结构动作时，衔铁52通过磁脱扣传动件第一臂541驱动磁脱扣传动件541转动，磁脱扣传动件54通过磁脱扣传动件第二臂542击打锁扣14的锁扣第二臂142使锁扣14转动而解除与跳扣13的搭扣配合，然后磁脱扣传动件第二臂542击打第一支持承击部2125，使第一支持212向分断方向转动，以加快接触系统2的分断速度。
作为其它实施例，所述锁扣14受磁脱扣传动件54打击而转动，锁扣14解除与跳扣13的搭扣配合，而且锁扣14进一步转动并击打第一支持212的第一支持承击部2125使其向分断方向转动。
如图15和17所示，所述载流导电板33还包括导电板第一中间段331和导电板接线段330，导电板接线段330、导电板第一中间段331、导电板第二中间段332、导电板配合段333、导电板第三中间段34和导电板双金调节段335依次首尾相连；所述导电板第一中间段331、导电板第二中间段332、导电板配合段333和导电板第三中间段334围成方框形结构，导电板接线段330相对于导电板第一中间段331向远离导电板配合段333的一侧折弯，导电板双金调节段335相对于导电板第三中间段334向远离导电板第二中间段332的一侧折弯。进一步的，所述导电板支撑臂336与导电板双金调节段335折弯相连且与导电板第二中间段334位于导电板双金调节段335同一侧。
如图1-2、19所示，所述开关电器还包括出线导电板34，出线导电板34用于串接出线端子32和接触系统2。
如图1-2、19所示，所述开关电器还包括引弧板35，引弧板35一端与出线导电板34电连，另一端向灭弧室4一侧延伸。
如图1-2、19所示，本发明开关电器为断路器，其采用如下布局方式：
所述操作机构1、接触系统2、进线端子31、出线端子32和灭弧室4均设置在断路器壳体(也即是开关壳体h)内；所述操作机构1的操作件11、接触系统2和灭弧室4在断路器的高度方向上依次设置；所述进线端子31和出线端子32在断路器的长度方向上位于断路器的两端；所述接触系统2和灭弧室4在断路器的长度方向上位于进线端子31和出线端子32之间，接触系统2的第一触头结构21和第二触头结构22在断路器的长度方向上对称同步转动设置；所述灭弧室4的电弧入口与第一触头结构21和第二触头结构22分断形成的分断间隔相对配合且朝向操作件11。所述断路器的上述布局方式，布局合理、紧凑，为灭弧室4提供了更大的装配空间，可安装更大规格的灭弧室4，从而有利于提高断路器的灭弧性能和分断性能；而且，所述第一触头结构21和第二触头结构22对称同步转动设置，不仅能够加倍提升接触系统2的分断速度而且还加倍提升了开距，有利于提高短路的分断性能和载流能力。具体的，如图1-2、19所示，图1-2、19的左右方向(也即是由进线端子31到出线端子32的方向)为断路器的长度方向，图1-2的上下方向(也即是由操作件11到灭弧室4的方向)为断路器的高度方向，图1-2的纸面内外方向为断路器的厚度方向。
如图1-2、19所示，所述操作件11、第一触头结构21和第二触头结构22的转动中心位于一个三角形的三个顶点处。
进一步的，如图1-2、19所示，上述三角形为锐角三角形。
如图1-2、19所示，所述进线端子31、第一触头结构21、第二触头结构22和出线端子32在断路器的长度方向上依次并排设置。
如图1-2、19所示，所述操作机构1的锁扣14、接触系统2的第一支持212和操作机构1的联动摇杆15在断路器的厚度方向上依次层叠设置，也即是锁扣14和联动摇杆15在断路器的厚度方向上位于第一支持212的两侧；所述锁扣14和联动摇杆15配合，为操作机构1与热磁脱扣机构5的配合位点提供更多的选择空间，便于布局和结构设计。
如图1-2、19所示，所述断路器的长度方向上，接触系统2和灭弧室4位于热磁脱扣机构5一侧，进线端子31位于热磁脱扣机构5另一侧。
如图1-2、19所示，所述热磁脱扣机构5的热脱扣结构和磁脱扣结构在断路器的高度方向上并排设置。进一步的，所述断路器的长度方向上，热脱扣结构与接触系统2并排，磁脱扣结构与灭弧室4并排。
作为其它实施例，所述断路器的长度方向上，接触系统2和灭弧室4位于热磁脱扣机构5一侧，出线端子32位于热磁脱扣机构5另一侧。
作为其它实施例，所述热磁脱扣机构5，在断路器的长度方向上，位于接触系统2和进线端子31之间或者位于接触系统2和出线端子32之间。
作为其他实施例，所述热磁脱扣机构5，在断路器的长度方向上，位于灭弧室4和进线端子31之间或者位于灭弧室4和出线端子32之间。
作为其他实施例，所述热磁脱扣机构5的热脱扣结构和磁脱扣结构，在断路器的长度方向上，位于接触系统2两侧或者位于灭弧室4两侧。
如图1-2、19所示，所述热磁脱扣机构5的热脱扣传动件55位于操作机构1和双金组件之间。进一步的，所述热脱扣传动件55在断路器的长度方向上位于操作机构1的联动摇杆15和双金组件的双金属片56之间。
如图1-2所示，所述磁脱扣结构为拍合式电磁脱扣器，热磁脱扣机构5的磁脱扣传动件54位于操作机构1和衔铁52之间。进一步的，所述磁脱扣传动件54在断路器的长度方向上位于操作机构1的锁扣14和衔铁52之间。进一步的，所述磁脱扣传动件54在断路器的高度方向上位于热脱扣传动件55下方。
作为其它实施例，所述磁脱扣结构为直动式电磁脱扣器，磁脱扣传动件54位于操作机构1和直动式电磁脱扣器的顶杆593之间。
如图1-2、19所示，所述锁扣14、磁脱扣传动件54和热脱扣传动件55的转动中心位于一个三角形的三个顶点处。
进一步的，如图1-2所示，所述磁脱扣结构为拍合式电磁脱扣器时，上述三角形为锐角三角形。
进一步的，如图19所示，所述磁脱扣结构为直动式电磁脱扣器时，上述三角形为钝角三角形，锁扣14对应的顶角为钝角。
如图1-2、19所示，所述接触系统2的分隔件23在断路器的长度方向上位于第一触头结构21和第二触头结构22之间。
如图1-2、19所示，所述灭弧室40包括多块灭弧栅片40，各灭弧栅片40在断路器的长度方向上依次并排间隔设置。
如图1-2、19所示，所述引弧板35和磁脱扣结构的磁轭51/592(如图1-2所示，所述磁脱扣结构为拍合式电磁脱扣器，其包括磁轭51；如图19所示，所述磁脱扣结构为直动式电磁脱扣器，其包括磁轭592)在断路器的长度方向上分别位于灭弧室4两侧，有利于提高电弧进入灭弧室4的速度，提高灭弧效率；而且，所述磁轭51/592作为灭弧室40一侧的引弧结构，有利于简化断路器的内部结构，减少零部件数量。
如图1-2、19所示，所述断路器为小型断路器，其断路器壳体为凸字型结构，操作机构1的操作件11设置在凸字型结构的上部，灭弧室4设置在凸字型结构的下部，灭弧室4获得了更大的安装空间，使断路器可以应用更大规格的灭弧室4，以提高灭弧能力，进线端子31和出线端子32位于凸字型结构的下部的两端，接触系统2位于凸字型结构的上部和下部交界处。进一步的，所述热磁脱扣机构5的热脱扣传动件55位于在凸字型结构的上部，热磁脱扣机构5的热脱扣结构由凸字型结构的下部延伸至上部，操作件11、热脱扣传动件55和热脱扣结构的上端在断路器的长度方向上依次并排设置；所述磁脱扣传动件54和磁脱扣结构位于凸字型结构的下部，磁脱扣传动件54在断路器的长度方向上位于接触系统2和进线端子31之间，磁脱扣结构在断路器的长度方向上位于灭弧室4和进线端子31之间。进一步的，所述凸字型结构的上部和下部指的是凸字型结构的上部方形空间和下部方形空间。
本发明还公开一种断路器装置，其包括两个及以上并排使用的断路器，相邻断路器的锁扣结构传动相连且联动设置。进一步的，相邻断路器中，一个锁扣结构的锁扣14与另一个锁扣结构的联动摇杆15传动相连且联动设置，例如锁扣14的锁扣第一臂141通过联动轴14-15与对应的联动摇杆15的摇杆第二臂152传动相连。
如图18、21、22所示，为所述操作机构1与接触系统2驱动相连的第二种实现方式，操作机构1与第二实施例的接触系统2驱动相连：所述接触系统2的第二实施例与第一实施例相比，还包括滑动设置的滑块16、第一分连杆17-21和第二分连杆17-22，第一分连杆17-21两端分别与滑块16和第一触头结构21铰接，第二分连杆17-22两端分别与滑块16和第二触头结构22铰接，操作 机构1驱动滑块16滑动，滑块16同时通过第一分连杆17-21和第二分连杆17-22分别驱动第一触头结构21和第二触头结构22相向同步转动或相背同步转动。进一步的，所述滑块16直线滑动设置。当然，所述操作机构1还可以不与滑块16相连，而是与第一触头结构21和第二触头结构22中的任意一个相连，操作机构1驱动第一触头结构21或第二触头结构22转动，同时第一触头结构21或第二触头结构22则通过第一分连杆17-21、滑块16和第二分连杆17-22的配合驱动第二触头结构22或第一触头结构21转动，以实现第一触头结构21和第二触头结构22的相向同步转动或相背同步转动；此时，所述滑块16、第一分连杆17-21和第二分连杆17-22则成为了实现第一触头结构21和第二触头结构22联动的中间传动结构，也即是第一触头结构21和第二触头结构22通过滑块16、第一分连杆17-21和第二分连杆17-22组成的中间传动结构间接传动相连。所述滑块16通过第一分连杆17-21、第二分连杆17-22，分别驱动第一触头结构21和第二触头结构22，使二者相向同步转动或相背同步转动，传动稳定可靠，而且与现有的采用一动一静的双触头结构相比，开距增加了已被，显著提高了断路器的分断性能。进一步的，所述第一复位弹簧向第一支持212施加作用力使第一触头结构21向其分断位置转动，第一触头结构21同时通过第一分连杆17-21、滑块16和第二分连杆17-22驱动第二触头结构22向其分断位置转动；和/或，第二复位弹簧223向第二支持222施加作用力使第二触头结构22向其分断位置转动，同时第二触头结构22通过第二分连杆17-22、滑块16和第一分连杆17-21驱动第一触头结构21向其分断位置转动。
如图18、21、22所述，所述滑块16、第一分连杆17-21和第二分连杆17-22均位于第一触头结构21和第二触头结构22之间，第一分连杆17-21和第二分连杆17-22成V型布置；所述第一触头结构21和第二触头结构22一端分别绕第一中心21s和第二中心22s枢转设置，另一端闭合或分断(也即是第一触头结构21的第一触点2110和第二触头结构22的第二触点2210相互配合以闭合或分断)；所述第一分连杆17-21一端与滑块16铰接且另一端与第一触头结构21铰接；所述第二分连杆17-22一端与滑块16铰接且另一端与第二触头结构22铰接。进一步的，所述第一分连杆17-21一端与滑块16铰接且另一端与第一触头结构21中部铰接，第一触头结构21中部优选指的是第一触头结构21的位于第一中心21s和第二触头结构21的第一触点2110之间的部分；所述第二分连杆17-22一端与滑块16铰接且另一端与第二触头结构22中部铰接，第二触头结构22中部优选指的是第二触头结构22的位于第二中心22s和第二触头结构22的第二触点2210之间的部分。进一步的，所述第一分连杆17-21和第二分连杆17-22对称设置，二者互为对称结构。
如图18、21、22所示，所述第一分连杆17-21和第二分连杆17-22均绕第三中心17s与滑块16铰接，也即是第一分连杆17-21和第二分连杆17-22一端同轴转动设置在滑块16上；所述第一分连杆17-21绕第三分中心17-3s与第一触头结构21铰接，第二分连杆17-22绕第四分中心17-4s与第二触头结构22铰接。进一步的，所述第三中心17s、第一中心21s和第二中心22s分别位于一个等腰三角形的三个顶点处，第一中心21s和第二中心22s分别位于该等腰三角形的两个底角对应的顶点处。
作为其它实施例，所述第一触头结构21和第二触头结构22中部分别绕第一中心21s和第二中心22s枢转设置，第一触头结构21一端与第一分连杆17-21铰接，第二触头结构22一端与第二分连杆17-22铰接，第一触头结构21和第二触头结构22另一端闭合或分断。
进一步的，如图18、21、22所示，所述第一分连杆17-21和第二分连杆17-22分别与第一支持212和第二支持222铰接，也即是第一分连杆17-21一端与滑块16铰接且另一端与第一支持212铰接，第二分连杆17-22一端与滑块16铰接且另一端与第二支持222铰接，有利于提高绝缘性。
如图22所示，所述操作机构1与第二实施例的接触系统2的第一种连接方式：所述操作机构1包括操作件11、主连杆12、跳扣13、锁扣14，跳扣13和锁扣14分别枢转设置在第一触头结构21或第二触头结构22上且搭接配合，主连杆12两端分别与操作件11和跳扣13铰接。进一步的，所述跳扣13和锁扣14分别枢转设置在第一支持212上。所述操作机构1的工作原理与本领域现有技术相同，在此不再展开描述。
作为其他实施例，所述跳扣13和锁扣14分别枢转设置在第二支持222上。
如图22所示，所述滑块16与挡板23相连且同步移动。进一步的，所述滑块16与挡板23为一体式结构，有利于减少断路器的零部件数量，提高安装效率和工作稳定性。
如图22所示，所述滑块16滑动设置在断路器壳体上；所述第一触头结构21和第二触头结构22分别枢转设置在断路器壳体上(具体的，所述第一支持212通过其第一支持轴2124枢转设置在断路器壳体上，第二支持222通过其第二支持轴2222枢转设置在断路器壳体上)。
如图23所示，为所述操作机构1与第二实施例接触系统2的第二种连接方式：所述操作机构1包括操作件11、主连杆12、跳扣13、锁扣14、支撑件18和支撑件连杆17-23，操作件11和支撑件18分别枢转设置，跳扣13和锁扣14分别枢转设置在支撑件18上，主连杆12两端分别与操作件11和跳扣13铰接，支撑件连杆17-23两端分别与支撑件18和滑块16铰接。进一步的，所述支撑件连杆17-23绕连杆滑块中心与滑块16铰接。
进一步的，所述第一分连杆17-21绕第一分中心17-1s与滑块16铰接，第二分连杆17-22绕第二分中心17-2s与滑块16铰接，第一分中心17-1s和第二分中心17-2s平行间隔设置。进一步的，所述连杆滑块中心、第一分中心17-1s和第二分中心17-2s位于一个三角形的三个顶点处。进一步的，上述三角形为等腰三角形，第一分中心17-1s和第二分中心17-2s分别位于该等腰三角形 的两个底角对应的顶点处。当然，依据实际需要，所述第一分连杆17-21和第二分连杆17-22绕同一中心与滑块16铰接。
如图24所示，为所述操作机构1与第二实施例接触系统2的第三种连接方式：第三种连接方式与第二种连接方式的不同点在于操作机构1与接触系统2的连接结构，具体的：所述支撑件连杆17-23一端与支撑件18铰接，另一端与第一触头结构21或第二触头结构22铰接。
进一步的，所述支撑件连杆17-23与第一触头结构21的第一支持212铰接。当然，根据实际需要，所述支撑件连杆17-23可以改为与第二触头结构22的第二支持222铰接。
如图25-26所示，为所述接触系统2的第三实施例。
所述第一触头结构21和第二触头结构22中部均绕触头机构中心2s枢转设置，也即是二者同轴转动设置，第一分连杆17-21一端与滑块16铰接且另一端绕第三分中心17-3s与第一触头结构21一端铰接，第二分连杆17-22一端与滑块16铰接且另一端绕第四分中心17-4s与第二触头结构22一端铰接，滑块16、第三分中心17-3s、触头机构中心2s和第四分中心17-4s分别位于一个四边形的四个顶点处。
进一步的，所述操作机构1包括操作件11、主连杆12、跳扣13、锁扣14、支撑件18和支撑件连杆17-23，操作件11和支撑件18分别枢转设置，跳扣13和锁扣14分别枢转设置在支撑件18上，主连杆12两端分别与操作件11和跳扣13铰接，支撑件18与滑块16传动相连。进一步的，所述第一分连杆17-21、第二分连杆17-22均通过连杆铰接轴绕第五中心19s与支撑件18铰接，也即是第一分连杆17-21和第二分连杆17-22均通过连杆铰接轴与支撑件18铰接，连杆铰接轴的轴心与第五中心19s重合；所述连杆铰接轴作为滑块16。
需要说明的是，在本发明的描述中，术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，或者是使用时惯常摆放的方位或位置关系，仅是为了便于描述，而不是指示所指的装置或元件必须具有特定的方位，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”等仅用于区分描述，而不能理解为指示相对重要性。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明的保护范围。

Claims (17)

  1. 一种断路器，其包括断路器壳体以及设置在断路器壳体内的操作机构(1)、接触系统(2)、进线端子(31)、出线端子(32)、灭弧室(4)和热磁脱扣机构(5)；其特征在于：所述接触系统(2)包括同步转动设置的第一触头结构(21)和第二触头结构(22)；
    在所述断路器的高度方向上，操作机构(1)的操作件(11)、接触系统(2)和灭弧室(4)依次设置；
    在所述断路器的长度方向上，进线端子(31)和出线端子(32)位于断路器的两端，接触系统(2)和灭弧室(4)位于进线端子(31)和出线端子(32)之间，接触系统(2)和灭弧室(4)位于热磁脱扣机构(5)一侧，进线端子(31)或出线端子(32)位于热磁脱扣机构(5)另一侧，第一触头结构(21)和第二触头结构(22)并排设置。
  2. 根据权利要求1所述的断路器，其特征在于：所述进线端子(31)、第一触头结构(21)、第二触头结构(22)和出线端子(32)在断路器的长度方向上依次并排设置；所述灭弧室(4)的电弧入口与第一触头结构(21)和第二触头结构(22)分断形成的分断间隔相对配合且朝向操作件(11)；
    所述灭弧室(4)包括多块灭弧栅片(40)，各灭弧栅片(40)在断路器的长度方向上依次并排间隔设置；所述操作件(11)、第一触头结构(21)和第二触头结构(22)的转动中心位于一个锐角三角形的三个顶点处。
  3. 根据权利要求1所述的断路器，其特征在于：所述操作机构(1)还包括主连杆(12)、跳扣(13)和锁扣(14)，第一触头结构(21)包括第一支持(212)和第一触头(211)，第一支持(212)枢转设置在断路器壳体内，第一触头(212)设置在第一支持(212)上在其带动下与第一支持(212)同步转动，跳扣(13)和锁扣(14)分别枢转设置在第一支持(212)上且搭扣配合，主连杆(12)两端分别与操作件(11)和跳扣件(13)铰接。
  4. 根据权利要求3所述的断路器，其特征在于：所述操作机构(1)还包括联动摇杆(15)，联动摇杆(15)和锁扣(14)同转轴且同步转动设置，在断路器的厚度方向上，联动摇杆(15)和锁扣(14)位于第一支持(212)两侧；所述热磁脱扣机构(5)包括热脱扣结构和磁脱扣结构，热脱扣结构用于在断路器所在电路发生过载故障时通过联动摇杆(15)驱动锁扣(14)转动而解除其与跳扣(13)的搭扣配合，磁脱扣结构用于在断路器所在电路发生短路故障时直接驱动锁扣(14)转动而解除其与跳扣(13)的搭扣配合；多个所述断路器并排联动设置时，相邻两个断路器中，一个断路器的锁扣(14)与另一个断路器的联动摇杆(15)驱动相连。
  5. 根据权利要求1所述的断路器，其特征在于：所述热磁脱扣机构(5)包括用于在断路器所在电路发生过载故障时驱动操作机构(1)脱扣的热脱扣结构和用于在断路器所在电路发生短路故障时驱动操作机构(1)脱扣的磁脱扣结构，热脱扣结构和磁脱扣结构在断路器的高度方向上并排设置；
    在所述断路器的长度方向上，热脱扣结构位于接触系统(2)和进线端子(31)或出线端子(32)之间，磁脱扣结构位于灭弧室(4)和进线端子(31)或出线端子(32)之间。
  6. 根据权利要求5所述的断路器，其特征在于：所述热磁脱扣机构(5)还包括枢转设置的热脱扣传动件(55)，热脱扣结构包括双金组件，热脱扣传动件(55)位于操作机构(1)和双金组件之间；
    所述热磁脱扣机构(5)还包括枢转设置的磁脱扣传动件(54)，磁脱扣结构为拍合式电磁脱扣器，其包括枢转设置的衔铁(52)，磁脱扣传动件(54)位于操作机构(1)和衔铁(52)之间；所述操作机构(1)的锁扣(14)、磁脱扣传动件(54)和热脱扣传动件(55)的转动中心分别位于一个三角形的三个顶点处；
    或者，所述热磁脱扣机构(5)还包括枢转设置的磁脱扣传动件(54)，磁脱扣结构为直动式电磁脱扣器，磁脱扣传动件(54)位于操作机构(1)和磁脱扣结构之间，磁脱扣传动件(54)一端与操作机构(1)传动配合，另一端与直动式电磁脱扣器的顶杆传动配合。
  7. 根据权利要求1所述的断路器，其特征在于：所述接触系统(2)还包括分隔件(23)，分隔件(23)在断路器的长度方向上位于第一触头结构(21)和第二触头结构(22)之间，分隔件(23)包括分隔部(232)，第一触头结构(21)和第二触头结构(22)闭合时，分隔件(23)受驱动使分隔部(232)由第一触头结构(21)的第一触点(2110)和第二触头结构(22)的第二触点(2210)之间移出，第一触头结构(21)和第二触头结构(22)分断时，分隔件(23)受驱动使分隔部(232)移入第一触点(2110)和第二触点(2210)之间。
  8. 根据权利要求1所述的断路器，其特征在于：所述第一触头结构(21)和第二触头结构(22)对称同步转动设置，第一触头结构(21)和第二触头结构(22)相向同步转动而闭合且相背同步转动而分断。
  9. 根据权利要求8所述的断路器，其特征在于：所述第一触头结构(21)和第二触头结构(22)传动配合；
    所述第一触头结构(21)包括绕第一中心(21s)枢转设置的第一支持(212)和设置在第一支持(212)上的第一触头(211)，第一支持(212)包括主齿轮(2121)；
    所述第二触头结构(22)包括绕第二中心(22s)枢转设置的第二支持(222)和设置在第二支持(222)上的第二触头(221)，第二支持(222)包括从齿轮(2221)，从齿轮(2221)与主齿轮 (2121)啮合配合。
  10. 根据权利要求7所述的断路器，其特征在于：所述分隔件(23)整体移动设置在第一触头结构(21)和第二触头结构(22)之间，受驱动而向第一方向或第二方向移动，第一方向和第二方向互为反方向，使分隔部(232)移入或移出第一触点(2110)和第二触点(2210)之间。
  11. 根据权利要求10所述的断路器，其特征在于：所述分隔件(23)受第一触头结构(21)驱动而使分隔部(232)移入或移出第一触点(2110)和第二触点(2210)之间；
    所述第一触头结构(21)包括绕第一中心(21s)枢转设置的第一支持(212)和设置在第一支持(212)上的第一触头(211)；所述第一支持(212)包括轴心与第一中心(21s)重合的分隔件驱动齿轮(2122)；所述分隔件(23)包括与分隔部(232)相连的分隔件齿条(231)，分隔件驱动齿轮(2122)与分隔件齿条(231)啮合配合；
    所述第二触头结构(22)包括绕第二中心(22s)枢转设置的第二支持(222)，第二支持(222)包括分隔件限位台(2223)，分隔件限位台(2223)和分隔件驱动齿轮(2122)分别位于分隔件齿条(231)两侧，分隔件限位台(2223)与分隔件齿条(231)限位配合使分隔件齿条(231)与分隔件驱动齿轮(2122)保持啮合。
  12. 根据权利要求8所述的断路器，其特征在于：所述接触系统(2)还包括第一分连杆(17-21)、第二分连杆(17-22)和滑动设置的滑块(16)，第一分连杆(17-21)两端分别与滑块(16)、第一触头结构(21)铰接，第二分连杆(17-22)两端分别与滑块(16)、第二触头结构(22)铰接；所述滑块(16)通过第一分连杆(17-21)、第二分连杆(17-22)，分别驱动第一触头结构(21)和第二触头结构(22)相向同步转动而闭合且相背同步转动而分断。
  13. 根据权利要求12所述的断路器，其特征在于：所述滑块(16)、第一分连杆(17-21)和第二分连杆(17-22)分别位于第一触头结构(21)和第二触头结构(22)之间，第一分连杆(17-21)和第二分连杆(17-22)成V型布置；
    所述第一触头结构(21)一端绕第一中心(21s)枢转设置，第二触头结构(22)一端第二中心(22s)枢转设置，第一触头结构(21)另一端和第二触头结构(22)另一端相互配合以闭合或分断；
    所述第一分连杆(17-21)一端与滑块(16)铰接且另一端与第一触头结构(21)铰接；所述第二分连杆(17-22)一端与滑块(16)铰接且另一端与第二触头结构(22)铰接。
  14. 根据权利要求13所述的断路器，其特征在于：所述断路器还包括操作机构(1)，操作机构(1)与接触系统(2)传动相连以驱动其闭合和分断，操作机构(1)包括枢转设置的操作件(11)、主连杆(12)、跳扣(13)和锁扣(14)，跳扣(13)和锁扣(14)分别枢转设置在第一触头结构(21)或第二触头结构(22)上且搭接配合，主连杆(12)两端分别与操作件(11)和跳扣(13)铰接。
  15. 根据权利要求13所述的断路器，其特征在于：所述断路器还包括操作机构(1)，操作机构(1)与接触系统(2)传动相连以驱动其闭合和分断，操作机构(1)包括操作件(11)、主连杆(12)、跳扣(13)、锁扣(14)、支撑件(18)和支撑件连杆(17-23)，操作件(11)和支撑件(18)分别枢转设置，跳扣(13)和锁扣(14)分别枢转设置在支撑件(18)上，主连杆(12)两端分别与操作件(11)和跳扣(13)铰接；
    所述支撑件连杆(17-23)两端分别与支撑件(18)和滑块(16)铰接；
    或者，所述支撑件连杆(17-23)一端与支撑件(18)铰接，另一端与第一触头结构(21)或第二触头结构(22)铰接。
  16. 根据权利要求8所述的断路器，其特征在于：所述第一触头结构(21)和第二触头结构(22)中部均绕触头机构中心(2s)枢转设置，第一分连杆(17-21)一端与滑块(16)铰接且另一端绕第三分中心(17-3s)与第一触头结构(21)一端铰接，第二分连杆(17-22)一端与滑块(16)铰接且另一端绕第四分中心(17-4s)与第二触头结构(22)一端铰接，滑块(16)、第三分中心(17-3s)、触头机构中心(2s)和第四分中心(17-4s)分别位于一个四边形的四个顶点处。
  17. 根据权利要求16所述的断路器，其特征在于：所述断路器还包括操作机构(1)，操作机构(1)与接触系统(2)传动相连以驱动其闭合和分断，操作机构(1)包括操作件(11)、主连杆(12)、跳扣(13)、锁扣(14)和支撑件(18)，操作件(11)和支撑件(18)分别枢转设置，跳扣(13)和锁扣(14)分别枢转设置在支撑件(18)上，主连杆(12)两端分别与操作件(11)和跳扣(13)铰接，支撑件(18)与滑块(16)传动相连。
PCT/CN2023/125270 2023-02-18 2023-10-18 断路器 WO2024169215A1 (zh)

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CN114068262A (zh) * 2020-08-03 2022-02-18 天津首瑞智能电气有限公司 一种低压断路器
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