CN220774206U - Isolating switch of ring main unit - Google Patents

Abstract

The utility model discloses an isolating switch of a ring main unit, and relates to the technical field of ring main units. Comprising the following steps: a fixed frame having a fixed partition; the closing touch seat is arranged in the cavity of the fixed frame and comprises a fixed seat, a static touch plate fixed at the lower end of the fixed seat and pressure equalizing covers arranged at two sides of the static touch plate; the rotary touch seat is arranged at the lower end of the closing touch seat and comprises a rotating shaft, a connecting rod assembly connected with the rotating shaft and a rotary touch plate connected with the connecting rod assembly, the rotating shaft is arranged at the upper end of the fixed partition plate, one end of the rotary touch plate is fixedly connected with the connecting rod assembly, and the other end of the rotary touch plate is rotatably connected with the fixed partition plate; the rotating shaft rotates to drive the rotating touch plate to be switched on or off with the static touch plate, and when the rotating touch plate is switched on with the static touch plate, the voltage equalizing cover covers the two sides of the rotating touch plate. The danger of arc initiation is prevented through the pressure equalizing cover, and the maintenance and the use are safe and the service life is prolonged.

Description

Isolating switch of ring main unit

Technical Field

The disclosure relates to the technical field of ring main units, in particular to an isolating switch of a ring main unit.

Background

The isolating switch is mainly used for isolating a power supply and switching operation in a ring main unit and is used for connecting and disconnecting a switching device of a low-current circuit. However, when the disconnecting switch is pulled off with load, an arc is generated, and danger is easily caused.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The disclosure aims to provide an isolating switch of a ring main unit, which at least overcomes the problem that an arc is generated and dangers are caused by the isolating switch of the related art to a certain extent.

Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.

According to one aspect of the present disclosure, there is provided an isolating switch of a ring main unit, including:

a fixed frame having a fixed partition;

the closing touch seat is arranged in the cavity of the fixed frame and comprises a fixed seat, a static touch plate fixed at the lower end of the fixed seat and pressure equalizing covers arranged at two sides of the static touch plate;

the rotary touch seat is arranged at the lower end of the closing touch seat and comprises a rotating shaft, a connecting rod assembly connected with the rotating shaft and a rotary touch plate connected with the connecting rod assembly, the rotating shaft is arranged at the upper end of the fixed partition plate, one end of the rotary touch plate is fixedly connected with the connecting rod assembly, and the other end of the rotary touch plate is rotatably connected with the fixed partition plate;

the rotating shaft rotates to drive the rotating touch plate to be switched on or off with the static touch plate, and when the rotating touch plate is switched on with the static touch plate, the voltage equalizing cover covers the two sides of the rotating touch plate.

In one embodiment of the disclosure, the fixing base includes a fixing panel and a fixing member, two sides of the fixing plate are fixed in the cavity of the fixing frame, the fixing member includes two side wings and a top plate, the top plate is fixed at the lower end of the fixing plate, the two side wings are respectively fixedly connected with the pressure equalizing cover at two sides, and the static contact plate passes through the fixing panel and the fixing member.

In one embodiment of the present disclosure, the pressure equalizing cover is configured in a disk shape, and the diameter of the pressure equalizing cover is larger than the length of the stationary contact plate in the vertical direction.

In one embodiment of the disclosure, the connecting rod assembly comprises a swing rod, an arc-shaped connecting rod and a fixing piece, wherein the swing rod is fixedly connected with the rotating shaft, the arc-shaped connecting rod is rotationally connected with the swing rod, one end of the fixing piece is rotationally connected with the arc-shaped connecting rod, and the other end of the fixing piece is fixedly connected with the rotating touch plate.

In one embodiment of the present disclosure, the arc-shaped connecting rod includes a first arc-shaped connecting rod and a second arc-shaped connecting rod, and the end of the swing rod is clamped between the first arc-shaped connecting rod and the second arc-shaped connecting rod.

In one embodiment of the disclosure, the circuit breaker is further arranged at the upper end of the closing contact seat, the circuit breaker is connected with the static contact plate, and the circuit breaker is fixed at the upper part of the cavity of the fixed frame.

In one embodiment of the present disclosure, the rotary contact plate has a rotary contact connected with the link assembly and forming a joint end at an end for electrical connection with the stationary contact plate, and a shielding plate disposed outside the joint end.

In one embodiment of the disclosure, the rotating contact includes a first rotating contact and a second rotating contact, a fixing protrusion is provided on the fixing partition, and the first rotating contact and the second rotating contact are clamped on two sides of the fixing protrusion.

In one embodiment of the disclosure, a wire outlet end is connected to the lower end of the rotary contact base.

In one embodiment of the disclosure, the front end of the stationary contact plate forms an insertion end for closing with the rotary contact plate, and the insertion end is in a blade angle structure.

The embodiment of the disclosure provides an isolator of looped netowrk cabinet, including fixed frame, the closing touch seat and set up in the rotation touch seat of closing touch seat lower extreme, closing touch seat and rotation touch seat all set up inside fixed frame, the closing district touch seat includes the fixing base, be fixed in the static touch board of fixing base lower extreme and set up in the pressure equalizing cover of static touch board both sides, the pressure equalizing cover sets up in static touch board both sides, when the rotation touch board of rotating touch seat is closed or is separated with the static touch board, can produce the electric arc, easily initiate dangerous, the pressure equalizing cover prevents the danger that the electric arc initiated, protection circuit safety. The rotary touch seat comprises a rotating shaft, a connecting rod assembly connected with the rotating shaft and a rotary touch plate connected with the connecting rod assembly, one end of the rotary touch plate is fixedly connected with the connecting rod assembly, and the other end of the rotary touch plate is rotationally connected with the fixed partition plate. The rotating touch plate and the static touch plate are driven to be switched on or off by the rotation of the connecting rod structure shaft, and the pressure equalizing cover is covered on two sides of the rotating touch plate when the rotating touch plate and the static touch plate are switched on. Automatic closing and opening are realized through the rotating shaft and the connecting rod assembly, and the pressure equalizing cover eliminates the danger caused by tip discharge or corona.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 is a schematic diagram of an overall ring main unit structure of an isolating switch of a ring main unit according to an embodiment of the disclosure;

FIG. 2 illustrates a partial enlarged view at A of FIG. 1 of an isolation switch of a ring main unit in an embodiment of the present disclosure;

fig. 3 illustrates a schematic diagram of a closing contact structure of an isolating switch of a ring main unit in an embodiment of the disclosure;

fig. 4 illustrates a schematic diagram of a rotary contact structure of an isolating switch of a ring main unit in an embodiment of the disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.

In one embodiment of the present disclosure, there is provided an isolation switch of a ring main unit, as shown with reference to fig. 1, including: the fixed frame 100, the closing touch seat 101 and the rotating touch seat 102 are all arranged in the cavity of the fixed frame 100 and are positioned in the middle-upper space, and the rotating touch seat 102 is arranged at the lower end of the closing touch seat 101. The control mechanism 104 is disposed at one side in the cavity of the fixed frame 100, and realizes the closing or opening of the isolating switch by connecting and disconnecting the rotary contact seat 102 and the closing contact seat 101.

Specifically, in one example, referring to fig. 2, which is a partial enlarged view of a portion a in fig. 1, the closing contact 101 includes a fixing base 210, a stationary contact 220, and a pressure equalizing cover 230. The static contact plate 220 is fixed at the lower end of the fixed seat 210, and the pressure equalizing covers 230 are disposed at two sides of the static contact plate 220. The static contact plate 220 is perpendicular to the lower end plane of the fixing seat 210, the static contact plate 220 is configured as a metal panel, the pressure equalizing cover 230 is configured as a disc, and the plane of the pressure equalizing cover 230 is parallel to the static contact plate 220. Referring to fig. 3, the fixing base 210 includes a fixing panel 310 and a fixing member 320, where the fixing panel 310 is composed of three insulating panels, that is, a front panel, a rear panel and a bottom panel, the front panel and the rear panel extend upward and cooperate with the bottom panel to form a U-shaped structure, the front panel and the rear panel can be fixed on the fixing frame 100 by screws, and the bottom panel is horizontal. The fixing piece 320 comprises two side wings and a top plate, the two side wings are perpendicular to the top plate, the two side wings extend downwards, the top plate is attached to the lower end of the bottom surface panel of the fixing panel 310 and is fixed, the two side wings are fixedly connected with the pressure equalizing cover 230 on the two sides through screws, the static contact plate 220 vertically penetrates through the bottom surface panel of the fixing panel 310 and the top plate of the fixing piece 320, the diameter of the pressure equalizing cover 230 is larger than the length of the static contact plate 220 in the vertical direction, the pressure equalizing cover can cover the static contact plate 220, and when in closing and opening, the pressure equalizing cover 230 can eliminate risks caused by tip discharge and electric arcs, and the service life of a product is prolonged.

In one example, the front end of the stationary contact 220 is an insertion end 330 when the rotating contact 260 is closed with the stationary contact 220, the insertion end is in a blade angle structure, and the rotating contact 260 can be more quickly and conveniently closed with the stationary contact 220, so that the closing speed is increased, and the resistance is reduced.

Specifically, in one example, the rotary contact 102 includes a rotary shaft 240, a linkage assembly 250, and a rotary contact plate 260. The rotary contact seat 102 is disposed at the lower end of the closing contact seat 101, one end of the link assembly 250 is connected to the rotating shaft 240, and the other end is connected to the rotary contact plate 260. The rotating shaft 240 is disposed at the upper end of the fixed partition 103, the rotating shaft 240 traverses the cavity of the fixed frame 100, alternatively, the left side of the rotating shaft 240 is connected with the control mechanism 104, the control mechanism 104 is provided with a motor, the rotating shaft 240 can be driven to rotate, and the right side of the rotating shaft 240 is rotatably connected to the inner side wall of the right side plate of the fixed frame 100. Alternatively, the rotating shaft 240 is provided in a polygonal prism shape, and the rotating shaft may be made of an insulating material. One end of the rotary touch plate 260 is fixedly connected with the link assembly 250, and the other end is rotatably connected with the fixed diaphragm 103. When the rotating shaft 240 rotates, the rotating contact plate 260 is driven to switch on or off the static contact plate 220, and when the rotating contact plate 260 and the static contact plate 220 switch on, the pressure equalizing cover 230 covers both sides of the rotating contact plate 260.

In a specific example, referring to fig. 4, the link assembly 250 includes a swing link 252, an arc link 251 and a connecting member 410, wherein a first fixed end 401 of the swing link 252 is fixedly connected with the rotating shaft 240, the first fixed end 401 has a polygonal prismatic fixing hole, matches the polygonal prismatic of the rotating shaft 240, and the fixed end 401 is sleeved on the polygonal prismatic of the rotating shaft 240, as shown in fig. 4, the rotating shaft is a hexagonal prismatic. When the rotating shaft 240 rotates, the swing rod 252 is driven to move, the first connecting end 402 of the swing rod 252 is rotationally connected with the arc-shaped connecting rod 251, the first connecting end 402 is provided with a first rotating shaft, and the first rotating shaft penetrates through the joint of the swing rod 252 and the arc-shaped connecting rod 251. Specifically, the arc-shaped link 251 includes a first arc-shaped link and a second arc-shaped link, the first rotation shaft passes through the connection part of the swing link 252 and the first arc-shaped link and the second arc-shaped link, and the end of the swing link 252 is clamped between the first arc-shaped link and the second arc-shaped link. The first rotating shaft extends to the outer sides of the first arc-shaped connecting rod and the second arc-shaped connecting rod and is fixed, so that the swinging rod 252 and the arc-shaped connecting rod 251 are in rotating connection. The second connecting end 403 of the connecting piece 410 is rotatably connected with the arc-shaped connecting rod 251, two ends of the second connecting end 403 are provided with protruding rotating shafts, and the protruding rotating shafts at two ends are respectively matched with shaft holes at the tail ends of the first arc-shaped connecting rod and the second arc-shaped connecting rod to realize rotational connection. The second fixing end 404 of the connecting piece 410 is fixedly connected with the rotating touch plate 260, and the second fixing end 404 can be fixed on the inner side of the rotating touch plate 260 through screws.

Specifically, in one example, referring to fig. 4, the rotating contact plate 260 has a rotating contact 430 and a shielding plate 420, as shown in fig. 4, the number of the rotating contacts 430 is two, the rotating contact 430 includes a first rotating contact and a second rotating contact, the rotating contact 430 is in a strip shape, and the first rotating contact and the second rotating contact are fixed relatively in parallel, alternatively, the fixing manner is that: the first and second rotary contacts are fixed by the second fixed end 404 of the connecting member 410. The rotating contact 430 is connected with the link assembly 250 and forms a junction end 431 at an end for electrical connection with the stationary contact, the shielding plate 420 is disposed outside the junction end 431, the shielding plate 420 is an arc-shaped panel, the shielding plate 420 is wrapped outside the first rotating contact and the second rotating contact by the fixing screw 432, the shielding plate 420 can uniformly electric field, and the electric field at the tip of the junction end 431 can be uniformly distributed so that the electric field of the junction end 431 is distributed on the plane of the shielding plate as much as possible.

Meanwhile, the other end of the rotating contact 430 is rotationally connected with the fixed partition 103, specifically, the fixed partition 103 is arranged inside the fixed frame 100, the fixed partition 103 is in a long strip shape, the fixed partition 103 is horizontally arranged inside the cavity of the fixed frame 100, the fixed partition 103 is provided with a fixed protrusion 440, the first rotating contact and the second rotating contact are clamped on two sides of the fixed protrusion 440, and the rotating contact 430 rotates around the fixed protrusion 440.

In one example, the circuit breaker 270 is further included in the upper end of the closing contact 101, the circuit breaker 270 is electrically connected with the stationary contact 220, the upper end of the stationary contact 220 is in contact with the lower end of the circuit breaker 270, the circuit breaker 270 may be a vacuum circuit breaker, the lower end of the circuit breaker 270 is fixed on the fixed panel 310, and the upper end is fixed on the upper portion of the cavity of the fixed frame 100.

In one example, the lower end of the rotary contact base 102 is connected with an outlet 105, which penetrates through the fixed partition 103, and alternatively, the outlet 105 may be connected with a copper rod. The wire outlet terminal 105 is connected to the lower end of the fixing protrusion 440, and the wire outlet terminal 105 penetrates the fixing spacer 103.

It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.

Furthermore, although the steps of the methods in the present disclosure are depicted in a particular order in the drawings, this does not require or imply that the steps must be performed in that particular order or that all illustrated steps be performed in order to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.

From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a mobile terminal, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (10)

1. An isolator of looped netowrk cabinet, characterized by comprising:

a fixed frame having a fixed partition;

the closing touch seat is arranged in the cavity of the fixed frame and comprises a fixed seat, a static touch plate fixed at the lower end of the fixed seat and pressure equalizing covers arranged at two sides of the static touch plate;

the rotary touch seat is arranged at the lower end of the closing touch seat and comprises a rotating shaft, a connecting rod assembly connected with the rotating shaft and a rotary touch plate connected with the connecting rod assembly, the rotating shaft is arranged at the upper end of the fixed partition plate, one end of the rotary touch plate is fixedly connected with the connecting rod assembly, and the other end of the rotary touch plate is rotatably connected with the fixed partition plate;

the rotating shaft rotates to drive the rotating touch plate to be switched on or off with the static touch plate, and when the rotating touch plate is switched on with the static touch plate, the voltage equalizing cover covers the two sides of the rotating touch plate.

2. The isolating switch of the ring main unit according to claim 1, wherein the fixing base comprises a fixing panel and a fixing piece, two sides of the fixing plate are fixed in a cavity of the fixing frame, the fixing piece comprises two side wings and a top plate, the top plate is fixed at the lower end of the fixing panel, the two side wings are fixedly connected with the equalizing covers on two sides respectively, and the static contact plate penetrates through the fixing panel and the fixing piece.

3. The isolating switch of the ring main unit according to claim 2, wherein the pressure equalizing cover is configured in a disc shape, and the diameter of the pressure equalizing cover is larger than the length of the static contact plate in the vertical direction.

4. The isolating switch of the ring main unit according to claim 1, wherein the connecting rod assembly comprises a swinging rod, an arc-shaped connecting rod and a connecting piece, the swinging rod is fixedly connected with the rotating shaft, the arc-shaped connecting rod is rotatably connected with the swinging rod, one end of the connecting piece is rotatably connected with the arc-shaped connecting rod, and the other end of the connecting piece is fixedly connected with the rotating touch plate.

5. The isolator of ring main unit as claimed in claim 4, wherein the arc-shaped links include a first arc-shaped link and a second arc-shaped link, and the end of the swing link is sandwiched between the first arc-shaped link and the second arc-shaped link.

6. The isolating switch of the ring main unit as defined in claim 4, further comprising a circuit breaker arranged at the upper end of the closing contact base, wherein the circuit breaker is connected with the static contact plate, and the circuit breaker is fixed at the upper part of the cavity of the fixed frame.

7. The isolating switch of the ring main unit according to claim 1, wherein the rotating contact plate is provided with a rotating contact and a shielding plate, the rotating contact is connected with the connecting rod assembly and forms a joint end at the end part for being electrically connected with the static contact plate, and the shielding plate is arranged outside the joint end.

8. The isolating switch of the ring main unit according to claim 7, wherein the rotating contact comprises a first rotating contact and a second rotating contact, a fixing protrusion is arranged on the fixing partition plate, and the first rotating contact and the second rotating contact are clamped on two sides of the fixing protrusion.

9. The isolating switch of the ring main unit according to claim 1, wherein the lower end of the rotary contact base is connected with a wire outlet end.

10. The isolating switch of the ring main unit according to claim 1, wherein the front end of the static contact plate forms an insertion end for closing with the rotating contact plate, and the insertion end is in a blade angle structure.