CN115148550A - Circuit breaker capable of being remotely controlled - Google Patents

Abstract

The utility model provides a but remote control's circuit breaker, includes electric drive module and magnetic flux subassembly, electric drive module includes the slider, slider and handle cooperation are in order to drive circuit breaker divide-shut brake, trigger at the magnetic flux subassembly and make the circuit breaker be in the dropout state after, and when electric drive module's slider drive handle swung the separating brake position, the slider drove the magnetic flux subassembly simultaneously and resets to realize detaining again of circuit breaker. According to the circuit breaker capable of being remotely controlled, the magnetic flux assembly is reset through the electric driving module to realize re-buckling, after the magnetic flux assembly is triggered to enable the circuit breaker to be in a tripping state when a main line is in fault, the sliding part of the electric driving module drives the handle to swing to a tripping position, and the sliding part simultaneously drives the magnetic flux assembly to reset so as to realize re-buckling of the circuit breaker.

Description

But remote control's circuit breaker

Technical Field

The invention relates to the field of low-voltage electrical appliances, in particular to a circuit breaker capable of being remotely controlled.

Background

The circuit breaker is a common switching element, not only has the function of controlling the on-off of a normal circuit, but also can provide a protection function when a system has a fault. As is well known, a molded case circuit breaker has three states of opening, closing and tripping, the closing, opening and tripping states of the circuit breaker can be judged according to the position of a handle on the molded case circuit breaker, after the circuit breaker has a fault and is tripped, the handle needs to be driven to the opening position after the fault is removed to realize the tripping, and then the opening and closing operation can be performed. But to remote control's circuit breaker, reform transform current ordinary molded case circuit breaker usually, install electric drive module (including devices such as control circuit and driving motor) additional in molded case circuit breaker's handle position and realize remote control, this kind of electric drive module does not have the function of the inside magnetic flux subassembly of direct reset circuit breaker, still needs handle or operating device to realize reseing, not only is unfavorable for the miniaturized design of circuit breaker, still has following defect: firstly, when the handle is driven by the electric driving module to rotate to push the magnetic flux push rod to horizontally slide and reset, the torque transmission is lossy, and the requirement on the matching precision is high; secondly, the magnetic flux is fixed on the base, so that the insulating property is low, and the magnetic flux is easy to damage during a breaking test.

In addition, the electric drive module who installs additional can shelter from the sign of circuit breaker handle department, make the operator can't see the true state of circuit breaker, in current product, usually install devices such as control circuit and driving motor additional in moulded case circuit breaker's handle position and instruct the circuit breaker state, nevertheless the circuit breaker is when separating brake state and dropout state, its moving contact subassembly position is the same, and current indicating device can not accurately distinguish these two kinds of states, make the operator can't distinguish whether the manual operation separating brake or because of the trouble dropout, inconvenience has been brought for the operator.

Disclosure of Invention

The object of the present invention is to overcome the drawbacks of the prior art and to provide a circuit breaker with an electric drive module capable of resetting the magnetic flux assembly.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a but remote control's circuit breaker, includes electric drive module and magnetic flux subassembly, electric drive module includes the slider, slider and handle cooperation are in order to drive circuit breaker divide-shut brake, trigger at the magnetic flux subassembly and make the circuit breaker be in behind the dropout state, and when electric drive module's slider driving handle swung the separating brake position, the slider drove the magnetic flux subassembly simultaneously and resets to realize detaining again of circuit breaker.

The circuit breaker further comprises an indicating module used for indicating the switching-on, switching-off or tripping state of the circuit breaker, wherein the indicating module comprises a rotary indicating piece which is rotatably installed;

the movable contact subassembly cooperates with the indicating module, when the circuit breaker closes the floodgate, make to rotate the indicator and rotate to instruct the combined floodgate position, when the circuit breaker is tripped, make to rotate the indicator and rotate to instruct the dropout position, when the circuit breaker is opened brake, make to rotate the indicator and rotate and electric drive module and rotate the spacing cooperation of indicator and make to rotate the indicator stall and instruct the separating brake position, after the circuit breaker is tripped, when the slider drive handle of electric drive module swings the separating brake position, the slider drives the magnetic flux subassembly simultaneously and resets, and the drive rotates the indicator and rotates to instruct the separating brake position.

Further, the magnetic flux assembly comprises a bracket, and a coil and a trip bar which are assembled on the bracket; when a main line has a fault, the coil drives the tripping rod to slide relatively along the bracket, one end of the tripping rod triggers the circuit breaker to trip and cut off the power, and after the fault of the main line is relieved, the sliding piece moves the driving handle towards the opening direction and swings to the opening position, and the sliding piece pushes the other end of the tripping rod to reset the magnetic flux component.

Furthermore, the shell of the circuit breaker comprises a base, a middle cover and an outer cover, a contact mechanism, an operating mechanism, an arc extinguishing mechanism and a magnetic flux assembly of the circuit breaker are arranged in the base, the contact mechanism comprises a movable contact assembly and a fixed contact assembly, the movable contact assembly is connected to the operating mechanism, the middle cover is covered on the base, a handle is connected with the operating mechanism in a linkage mode and extends out of the middle cover, an electric driving module and an indicating module are fixed to the middle cover of the circuit breaker, the outer cover is covered in a covering mode, a display window is arranged on the outer cover, and the indicating module is assembled between the movable contact assembly and the display window and located on one side of the electric driving module and one side of the handle.

Furthermore, the indicating module comprises a rotating indicating piece, a resetting elastic piece and a stroke mechanism, the moving contact assembly drives the rotating indicating piece to rotate to one side by matching with the stroke mechanism, and the resetting elastic piece drives the rotating indicating piece to rotate to the other side; the indicating module further comprises a mounting seat, the rotating indicating piece is rotatably assembled on the mounting seat, the resetting elastic piece is respectively connected with the mounting seat and the rotating indicating piece, the stroke mechanism comprises a guide rod, the guide rod is slidably assembled on the mounting seat, one end of the guide rod is matched with the rotating indicating piece, and the other end of the guide rod extends out of the mounting seat and is used for being matched with the moving contact assembly.

Further, the electric drive module comprises a fixing piece, a sliding piece and a motor assembly, wherein the fixing piece and the motor assembly are fixed on the circuit breaker, the sliding piece is in sliding fit with the fixing piece, and the sliding piece can be driven by the motor assembly to slide along the fixing piece relatively.

Furthermore, the whole sliding part is of a plate-shaped structure, the edge of one side of the sliding part horizontally protrudes and extends to form an extension part, one end of the extension part is bent to form a brake separating pushing part, the other end of the extension part is bent to form a resetting pushing part, and the brake separating pushing part and the resetting pushing part respectively bend and extend towards the front side and the back side of the sliding part;

when the sliding piece slides towards the opening direction, the opening pushing part is matched with the indicating module to enable the indicating module to rotate to the indicating opening position; after the magnetic flux assembly is triggered to enable the circuit breaker to be in a tripping state, the sliding piece slides towards the opening direction to enable the indicating module to rotate to the indicating opening position, and meanwhile, the resetting pushing portion pushes the magnetic flux assembly to reset.

Further, the magnetic flux subassembly includes the support and assembles coil and the trip bar on the support, the fixed assembly of coil is equipped with in the coil middle part and can be by coil driven reset shaft on the main loop of circuit breaker is connected through the power cord on the support the epaxial cover that resets is equipped with first reset spring, the trip bar slides the assembly and can carry out the relative slip on the support and along the support, and the one end of trip bar is relative with reset shaft and triggers circuit breaker dropout outage under reset shaft's drive, and the other end of trip bar is equipped with the face of pushing away with electric drive module complex.

Further, the magnetic flux subassembly still includes the reset plate by the reset shaft drive, reset plate rotating assembly on the support and with the spacing cooperation of trip bar, after the coil got electric, reset shaft drive reset plate rotated in order to relieve reset plate and the spacing cooperation of trip bar, and reset shaft drive trip bar takes place relative slip and makes the circuit breaker dropout with the inside dropout semi-axis of triggering the circuit breaker.

Furthermore, the upper end of the reset plate is bent and extended to form a U-shaped rotating connecting part, the reset plate is rotatably assembled at one end of the support through the rotating connecting part, one side wall of the rotating connecting part extends in parallel in the direction away from the reset plate and is bent from one side edge to form a limiting plate, the limiting plate is matched with a limiting clamping groove in the trip bar for limiting, and the lower end of the reset plate is opposite to the first end of the reset shaft;

the middle part of the trip bar is provided with a connecting plate which is in sliding fit with the bracket, two ends of the connecting plate respectively extend towards two opposite sides to form a plate-shaped structure, one of the plate-shaped structures is used as a first pushing plate and is opposite to the first end of the reset shaft, and the tail end of the first pushing plate is protruded to form a driving convex edge which can drive the trip half shaft to act; another plate-shaped structure is as the second catch bar, and the second catch bar is connected with second reset spring as the push face in the one side as pushing away of first catch bar dorsad between second catch bar and support, and the side of second catch bar extends to the direction of first catch bar and forms spacing arm be equipped with on the spacing arm with spacing plate complex spacing draw-in groove.

Further, the magnetic flux assembly comprises a bracket, and a coil and a trip bar which are assembled on the bracket; when a main line fails, the coil drives the tripping rod to slide relatively along the bracket, one end of the tripping rod triggers the circuit breaker to trip and power off, after the main line fails, the sliding part moves the driving handle towards the opening direction and swings to the opening position, the sliding part pushes the rotating indicator to rotate to the indicating opening position, and the sliding part pushes the other end of the tripping rod to reset the magnetic flux assembly.

According to the circuit breaker capable of being remotely controlled, the magnetic flux assembly is reset through the electric driving module to realize re-buckling, after the magnetic flux assembly is triggered to enable the circuit breaker to be in a tripping state when a main line is in fault, the sliding part of the electric driving module drives the handle to swing to a tripping position, and the sliding part simultaneously drives the magnetic flux assembly to reset so as to realize re-buckling of the circuit breaker.

In addition, the circuit breaker further comprises an indicating module, and the indicating module is matched by the electric driving module and the moving contact assembly together, so that the indicating module can indicate three states of switching-on, switching-off and tripping of the circuit breaker.

Drawings

FIG. 1 is a schematic diagram of the construction of an electric drive module and an indicator module of the present invention;

FIG. 2 is a schematic diagram of the construction of the electric drive module, the indicating module and the flux assembly of the present invention;

FIG. 3 is an exploded schematic view of the present invention;

FIG. 4 is a schematic view of the motor assembly and indicating module of the present invention assembled to a circuit breaker;

FIG. 5 is a schematic view of the structure of the fixed member and the sliding member of the present invention;

FIG. 6 is a schematic diagram of the indicating module of the present invention;

FIG. 7 is an exploded view of the indicating module of the present invention;

FIG. 8 is an exploded view of the indicating module of the present invention;

FIG. 9 is a sectional view of an indicating module (closing state) according to the present invention

FIG. 10 is a cross-sectional view of the present invention in a closed position;

FIG. 11 is a schematic view of the slider in a closed position in accordance with the present invention;

FIG. 12 is a schematic view of the slider in the open state of the present invention;

FIG. 13 is an enlarged view of portion A of FIG. 12;

FIG. 14 is a cross-sectional view of the present invention in the open state;

FIG. 15 is an enlarged view of portion B of FIG. 14;

FIG. 16 is a schematic view of the slider in the tripped state of the present invention;

FIG. 17 is an enlarged view of portion C of FIG. 16;

FIG. 18 is a cross-sectional view of the present invention in a tripped state;

FIG. 19 is an enlarged view of portion D of FIG. 18;

FIG. 20 is a cross-sectional view of the present invention in the closed position (including the flux assembly);

FIG. 21 is a schematic view of the magnetic flux assembly and trip half shaft of the present invention in a closed state;

FIG. 22 is a cross-sectional view of the present invention in the tripped state (containing the flux assembly);

FIG. 23 is a schematic view of the magnetic flux assembly and trip half shaft of the present invention in a tripped state;

FIG. 24 is a cross-sectional view (with flux assembly) in a reseated state;

FIG. 25 is a schematic view of the magnetic flux assembly and trip half shaft of the present invention in a rebuckled state;

fig. 26 is a schematic structural view of a flux assembly trip condition in accordance with the present invention;

fig. 27 is a cross-sectional view of the flux assembly of the present invention in a tripped condition;

FIG. 28 is a schematic view of the re-latching of the flux assembly of the present invention;

fig. 29 is a cross-sectional view of the flux assembly of the present invention in a re-latched condition;

FIGS. 30-31 are schematic views of the construction of the flux assembly of the present invention;

FIG. 32 is a schematic view of a trip bar in the flux assembly of the present invention;

fig. 33 is a schematic view of the structure of a reset plate in the flux assembly of the present invention.

Detailed Description

The following further describes the embodiments of the circuit breaker according to the present invention with reference to the embodiments shown in fig. 1 to 33. The circuit breaker of the present invention is not limited to the description of the following embodiments.

As shown in fig. 3-4, the circuit breaker capable of being remotely controlled comprises an electric driving module 2 and an indicating module 3, wherein the electric driving module 2 is arranged corresponding to a handle 11 of the circuit breaker 1, and the opening and closing of the circuit breaker 1 are remotely controlled by driving the handle 11 of the circuit breaker 1; the indicating module 3 is arranged corresponding to the moving contact component 12 of the circuit breaker 1 and is positioned on one side of the electric driving module 2 and the handle 11, and the indicating module 3 is matched with the moving contact component 12 of the circuit breaker 1 and is used for indicating the running state of the circuit breaker 1.

As shown in fig. 1, the present embodiment is a circuit breaker that can be remotely controlled, and includes a positional relationship among a power driving module 2, a handle 11, an indicating module 3, and a movable contact assembly 12. The electric driving module 2 is arranged above the handle 11, and is used for shielding the mark at the handle of the circuit breaker, so that an operator cannot check the running state of the circuit breaker through the handle, and the user can determine the state of the circuit breaker through the indicating module 3 by arranging the indicating module 3 matched with the moving contact assembly 12.

As shown in fig. 3-4, the electric driving module 2 and the indicating module 3 of this embodiment are installed inside a housing of the circuit breaker 1, a display window is provided on the housing of the circuit breaker 1, the indicating module 3 is correspondingly installed between the display window and the moving contact assembly 12 of the circuit breaker 1, and a user can check the operating state of the circuit breaker 1 through the display window.

The shell of the circuit breaker 1 of the embodiment comprises a base, a middle cover 14 and an outer cover 15, a contact mechanism, an operating mechanism, an arc extinguishing mechanism and a protection mechanism of the circuit breaker 1 are arranged in the base, the contact mechanism comprises a movable contact assembly 12 and a fixed contact assembly which are matched with each other, the movable contact assembly 12 is connected to the operating mechanism, the middle cover 14 covers the base and seals the base, a handle 11 is linked with the operating mechanism and can extend out of the middle cover 14, the operating mechanism can drive the movable contact assembly 12 to swing to be separated from the fixed contact assembly in a contact mode through the swing of the handle 11 in the opening and closing direction, and the circuit breaker 1 is switched on and off. Still be equipped with protection mechanisms such as overload protection mechanism, short-circuit protection mechanism and earth leakage protection mechanism in circuit breaker 1 as required, when the trouble such as overload, short circuit or electric leakage appears, corresponding overload protection mechanism, short-circuit protection mechanism, earth leakage protection mechanism drive operating device dropout make circuit breaker 1 dropout realize the protection, this embodiment is equipped with magnetic flow subassembly 4 in circuit breaker 1 as protection mechanism, magnetic flow subassembly 4 triggers drive dropout semi-axis 13 and makes circuit breaker dropout when the main line breaks down, this is the prior art in this field, no longer give consideration to repeatedly.

In this embodiment, a mounting groove is formed in one side of the middle cover 14, which is away from the base, the electric driving module 2 and the indicating module 3 are fixed on the middle cover 14, the outer cover 15 covers the middle cover 14, a display window is formed in the outer cover 15, the electric driving module 2 is arranged corresponding to the handle 11 and is installed above the handle 11 for pushing the handle 11 to swing towards switching-on or switching-off, the indicating module 3 is arranged corresponding to the moving contact assembly 12, the indicating module 3 is assembled between the moving contact assembly 12 and the display window and located on one side of the electric driving module 2 and the handle 11, a matching hole is formed in the position, corresponding to the moving contact assembly 12, of the middle cover 14, one end of the indicating module 3 extends into the base from the matching hole to match with the moving contact assembly 12, in this embodiment, two sides of the indicating module 3 are fixed with the middle cover 14 by screws, and can be fixed by clamping or the like.

The invention has the improvement that the indicating module 3 is matched with the movable contact component 12 and the electric driving module 2, and the indicating module 3 is matched with the electric driving module 2 and the movable contact component 12 of the circuit breaker 1 together, so that the indicating module 3 can indicate three states of closing, opening and tripping of the circuit breaker 1. As shown in fig. 6, the indication module 3 includes a rotary indicator 31 rotatably mounted, and when the circuit breaker 1 is closed, the movable contact assembly 12 is engaged with the indication module 3 to rotate the rotary indicator 31 to indicate a closing position; when the circuit breaker 1 is opened, the movable contact assembly 12 is matched with the indicating module 3 to enable the rotating indicating piece 31 to rotate, and the electric driving module 2 is in limit matching with the rotating indicating piece 31 to enable the rotating indicating piece 31 to stop rotating at an indicating opening position; when the circuit breaker 1 is tripped, the movable contact assembly 12 cooperates with the indicating module 3 to rotate the rotating indicating piece 31 to indicate the tripped position.

Compared with the existing circuit breaker 1, the movable contact assembly 12 of the circuit breaker has the same position when the circuit breaker is in the opening state and the tripping state, and the movable contact assembly 12 and the indicating module 3 are matched to enable the rotating indicating piece 31 to rotate and the electric driving module 2 and the rotating indicating piece 31 to stop rotating at the indicating opening position in a limiting matching mode when the indicating module 3 of the circuit breaker is in the opening state, so that the opening state and the tripping state of the circuit breaker can be distinguished, the indication of the three states is realized, and the accurate determination of the state of the circuit breaker by a user is facilitated.

As shown in fig. 5, the electric drive module 2 includes a slider 22, the slider 22 is engaged with the handle 11, the electric drive module 2 drives the handle 12 to swing through the slider 22 to control the opening and closing of the circuit breaker 1, and when the circuit breaker 1 is opened, the slider 22 is in limit engagement with the rotation indicator 31 to stop rotating the rotation indicator 31 at the indication opening position. The sliding part 22 is provided with a switching-off pushing part 2231 used for being matched with the rotating indicator 31, when the circuit breaker is remotely controlled to be switched off, the sliding part 22 horizontally and linearly slides to a switching-off position, the driving handle 11 swings towards the switching-off direction, the movable contact component 12 is separated from the fixed contact component to enable the rotating indicator 31 to rotate, and the sliding part 22 is in the switching-off position to enable the rotating indicator 31 to stop at the indicating switching-off position through the limiting matching of the switching-off pushing part 2231 and the rotating indicator 31.

Further, as shown in fig. 2, another improvement point of the present invention is that the magnetic flux assembly 4 is reset by the electric driving module 2 to realize re-latching, and after the magnetic flux assembly 4 is triggered to trip the circuit breaker 1 in the main line fault state, and the slider 22 of the electric driving module 2 drives the handle 11 to swing to the open position, the slider 22 simultaneously drives the magnetic flux assembly 4 to reset, so as to realize re-latching of the circuit breaker 1. As shown in fig. 5, the sliding member 22 is provided with a reset pushing portion 2232 for driving the magnetic flux assembly 4 to reset, and when the sliding member 22 of the electric drive module 2 drives the handle 11 to swing to the open position, the magnetic flux assembly 4 is driven to reset by the reset pushing portion 2232. Preferably, the electric driving module 2 can be used for cooperating with the indicating module 3 to indicate the closing, opening and tripping states of the circuit breaker 1, and can be used for resetting the magnetic flux assembly 4 after tripping. An extending part 223 which is rod-shaped as a whole is horizontally formed by extending the edge of one side of the sliding part 22, one end of the extending part 223 is bent to form an opening pushing part 2231, the other end of the extending part 223 is bent to form a resetting pushing part 2232, the opening pushing part 2231 and the resetting pushing part 2232 are bent and extended to the front side and the back side of the sliding part 22 respectively, and the resetting pushing part 2232 extends to the inside of the base to be matched with the magnetic flux component 4.

As shown in fig. 6, in an embodiment of an indicating module 3, the indicating module 3 includes a rotating indicator 31, a reset elastic element 32 and a stroke mechanism 34, when the circuit breaker is switched on, switched off or tripped, the movable contact assembly 12 indirectly cooperates with the rotating indicator 31 through the stroke mechanism 34, the movable contact assembly 12 drives the rotating indicator 31 to rotate towards one side through cooperating with the stroke mechanism 34, the reset elastic element 32 drives the rotating indicator 31 to rotate towards the other side, and the reset elastic element 32 can drive the rotating indicator 31 to rotate towards the other side to indicate a tripped position in this embodiment. It should be noted that the cooperation between the moving contact assembly 12 and the stroke mechanism 34 does not mean that the stroke mechanism 34 is driven when the circuit breaker is switched on, switched off or tripped, but the moving contact assembly 12 can drive the stroke mechanism 34 when the circuit breaker is switched on and is separated from the stroke mechanism 34 when the circuit breaker is switched off or tripped; or the movable contact assembly 12 is separated from the stroke mechanism 34 when closing, and drives the stroke mechanism 34 when opening or tripping, which can be specifically realized by adjusting the assembly position of the stroke mechanism 34 or the stroke length of the stroke mechanism 34.

The rotating indicating piece 31 is provided with an indicating area 311, the indicating area 311 is marked with a closing mark, an opening mark and a tripping mark, the rotating indicating piece 31 is rotatably installed, when the rotating indicating piece 31 rotates to the state that the closing mark corresponds to a display window of the circuit breaker, the rotating indicating piece 31 indicates the closing position, when the rotating indicating piece 31 rotates to the state that the opening mark corresponds to the display window, the rotating indicating piece indicates the opening position, and when the rotating indicating piece rotates to the state that the tripping mark corresponds to the display window, the rotating indicating piece indicates the tripping position.

An embodiment of matching a movable contact assembly 12 with an indication module 3 is that when a circuit breaker 1 is switched on, the movable contact assembly 12 is separated from a stroke mechanism 34, the stroke mechanism 34 is separated from a rotary indicator 31, a reset elastic piece 32 drives the rotary indicator 31 to rotate to the other side to indicate a switch-on position, when the circuit breaker 1 is switched off or is tripped, the movable contact assembly 12 drives the stroke mechanism 34 to enable the rotary indicator 31 to rotate to one side, when the circuit breaker 1 is switched off, a sliding piece 22 of an electric drive module 2 is located at a switch-off position, the sliding piece 22 limits the rotary indicator 31 through a switch-off pushing part 2231 to enable the rotary indicator 31 to stop rotating at the indication switch-off position, when the circuit breaker is tripped, the sliding piece 22 is located at the switch-on position, the switch-off pushing part 2231 does not limit the rotary indicator 31, and the rotary indicator 31 rotates at the indication trip position.

Another embodiment of the movable contact assembly 12 and the indicating module 3 is that when the circuit breaker 1 is closed, the movable contact assembly 12 drives the stroke mechanism 34 to rotate the rotating indicating member 31 to one side to an indicating closing position, when the circuit breaker 1 is opened or released, the movable contact assembly 12 is separated from the stroke mechanism 34, the stroke mechanism 34 is released from the limit fit with the rotating indicating member 31, the reset elastic member 32 drives the rotating indicating member 31 to rotate to the other side, when the circuit breaker 1 is opened, the sliding member 22 of the electric driving module 2 is located at the opening position, the sliding member 22 limits the rotating indicating member 31 through the opening pushing portion 2231, so that the rotating indicating member 31 stops rotating at the indicating opening position, when the circuit breaker is released, the sliding member 22 is located at the closing position, the opening pushing portion 2231 does not limit the rotating indicating member 31, and the rotating indicating member 31 rotates at the indicating releasing position.

First, a preferred embodiment of the present invention is further described below in conjunction with fig. 1-19.

As shown in fig. 6 to 9, the preferred embodiment of the indicating module 3 of the present invention, the indicating module 3 is of a modular design. The indicating module 3 comprises a mounting seat 33, a rotating indicating piece 31, a resetting elastic piece 32 and a stroke mechanism 34, wherein the rotating indicating piece 31 is rotatably assembled on the mounting seat 33 and used for indicating the switching-on, switching-off or tripping state of the circuit breaker 1, the resetting elastic piece 32 is respectively connected with the mounting seat 33 and the rotating indicating piece 31, the stroke mechanism 34 comprises a guide rod 341, the guide rod 341 is slidably assembled on the mounting seat 33, one end of the guide rod 341 is matched with the rotating indicating piece 31, the other end of the guide rod 341 extends out of the mounting seat 33 and is used for extending into a base to be matched with the movable contact component 12, the indicating module 3 is assembled into a whole and then is installed on the circuit breaker to be matched with the movable contact component 12, the structure is simple and the assembly is convenient, and a user can assemble the indicating module according to needs.

The mounting seat 33 is assembled on the middle cover 14, one end of the guide rod 341 extending out of the mounting seat 33 extends into the base and corresponds to the upper part of the movable contact assembly 12, the rotation indicating member 31 is rotatably assembled on the mounting seat 33, the rotation indicating member 31 is provided with an indicating area 311 and an abutting part 312 matched with the stroke mechanism 34, the resetting elastic member 32 is preferably a tension spring, one end of the resetting elastic member 32 is connected to the mounting seat 33, the other end of the resetting elastic member is connected with the rotation indicating member 31, and of course, the elastic member 32 can also be an elastic member such as a torsion spring; the guide rod 341 is slidably mounted on the mounting seat 33, one end of the guide rod 341 can be engaged with the abutting portion 312 of the rotation indicator 31 for limiting, and the other end of the stroke mechanism 34 can be engaged with the movable contact assembly 12. The guide 341 may be rotated by pushing or pulling the rotation indicator 31 through the abutting portion 312.

As shown in fig. 7 to 9, the stroke mechanism 34 includes a guide rod 341, a guide shaft 342, and a pressure spring 343, a first end 3411 of the guide rod 341 extends into the mounting seat 33, the guide shaft 342 is mounted on the first end 3411 of the guide rod 341 and is in sliding fit with the mounting seat 33, a second end 3412 of the guide rod 341 extends out of the mounting seat 33 and is in fit with the movable contact assembly 12, a limiting portion is disposed between the first end 3411 and the second end 3412 of the guide rod 341, and the pressure spring 343 is sleeved on the guide rod 341 and is located between the limiting portion and the mounting seat 33. Preferably, the guide shaft 342 can be in limit fit with the rotary indicator 31 when being in sliding fit with the mounting seat 33, the rotary indicator 31 is provided with an abutting portion 312, the guide rod 341 is matched with the abutting portion 312 through the guide shaft 342, and the guide shaft 342 simultaneously plays a role in assembling, guiding and driving the rotary indicator 31 of the guide rod 341.

As shown in fig. 6-8, the mounting base 33 is a rectangular parallelepiped structure having a containing cavity 331, the mounting base 33 has a containing cavity 331, an opening at one end of the containing cavity 331 corresponds to a display window of the circuit breaker 1, a guide hole 334 for the stroke mechanism 34 to pass through is arranged at the other end of the mounting base 33 opposite to the opening, two opposite side walls of the containing cavity 331 are provided with a through hole and a strip-shaped groove 332, the rotating indicator 31 is rotatably assembled in the mounting base 33 by assembling a connecting shaft in the through hole, and two ends of the guide shaft 342 are in sliding fit with the mounting base 33 through the strip-shaped groove 332. Preferably, the mounting seat 33 is provided with a track groove 339 for avoiding the opening engagement portion 313, and the track groove 339 is provided at a position close to the opening of one side wall of the accommodating chamber 331.

Further, as shown in fig. 9 and 19, a limiting boss 337 for limiting the rotation of the rotation indicator 31 to indicate a trip position when the circuit breaker 1 is tripped is disposed in the mounting base 33, and the limiting boss 337 positions the position where the reset elastic member 32 drives the rotation indicator 31 to reset the rotation position, so that the rotation indicator 31 indicates a trip state. In this embodiment, the limiting protrusion 337 is disposed at the bottom of the accommodating cavity 331 and is located at one side of the guiding hole 334.

Preferably, as shown in fig. 7-9, the indication module 3 further includes a micro switch 35 disposed on the mounting seat 33, and when the circuit breaker 1 is switched on or switched off, the movable contact assembly 12 cooperates with the stroke mechanism 34 to enable the stroke mechanism 34 to trigger the micro switch 35 to output a signal. The micro switch 35 is preferably disposed at one side of the guiding hole 334, in this embodiment, the micro switch 35 is disposed outside the accommodating cavity 331 of the mounting seat 33, and when the movable contact assembly 12 pushes the guide rod 341 to move, the spring piece of the micro switch 35 is pressed to trigger the micro switch 35 to output a signal, and the output signal may be connected to a microcontroller of the circuit breaker 1, or may be used to output to an upper computer to provide a status signal.

Preferably, as shown in fig. 6, the rotating indicator 31 of the present embodiment is an approximately elliptical polygonal ring structure, the outer surface of the polygonal ring structure is provided with an indicating area 311, and the surfaces of three consecutive sides are sequentially marked with a closing mark, an opening mark and a tripping mark to form the indicating area 311; rotate one side that instruction piece 31 kept away from and instruct regional 311 and be equipped with and instruct the relative rotation installation department 314 of regional 311, rotate instruction piece 31 and rotate the assembly through rotating installation department 314, polygon annular structure's inside wall forms support portion 312, support portion 312 and instruct regional 311 relatively, the guiding axle 342 passes rotate instruction piece 31 and support the cooperation of portion 312 the protrusion of axial one side of rotation instruction piece 31 is equipped with separating brake cooperation portion 313, and the central axis of separating brake cooperation portion 313 parallels with the central axis of the through-hole of rotation installation department 314, preferably is located the part that is close to the mark and has the separating brake sign, separating brake cooperation portion 313 stretches out the mount pad 33 and cooperates with electric drive module 2 outward be provided with the orbit groove 339 who dodges separating brake cooperation portion 313 on the mount pad 33. The rotating indication member 31 is further provided with a connection portion 315 for connecting with the elastic return member 32, in this embodiment, the connection portion 315 is a protrusion structure disposed on the other axial side of the rotating indication member 31, the connection portion 315 is located on the lower side of the side marked with the closing sign, and preferably, the protruding height of the connection portion 315 is smaller than the protruding height of the rotating installation portion 314.

The process of the indicating module 3 and the moving contact assembly 12 of this embodiment is that when the circuit breaker 1 is switched on, the moving contact assembly 12 is separated from the second end 3412 of the guide rod 341, the compression spring 343 is stretched to move the guide rod 341 in the forward direction, the guide shaft 342 is matched with the abutting portion 312 of the rotating indicating member 31, and the guide shaft 342 is pulled to rotate the rotating indicating member 31 to one side to indicate the switching-on position; when the circuit breaker 1 is opened or tripped, the movable contact assembly 12 abuts against the second end 3412 of the guide rod 341 to enable the guide rod 341 to move reversely, the guide shaft 342 is separated from the abutting portion 312 of the rotating indicator 31 to release the limit fit, the reset elastic member 32 drives the rotating indicator 31 to rotate towards the other side, when the circuit breaker 1 is opened, the sliding member 22 of the electric driving module 2 is located at the opening position, the sliding member 22 limits the rotating indicator 31 through the opening pushing portion 2231 to enable the rotating indicator 31 to stop rotating and stop at the indicating opening position, when the circuit breaker is tripped, the sliding member 22 is located at the closing position, the opening pushing portion 2231 does not limit the rotating indicator 31, and the rotating indicator 31 rotates at the indicating tripping position.

Further, a guide groove and a guide protrusion for providing a guiding function are further disposed between the guide rod 341 and the mounting seat 33, and when the guide rod 341 and the mounting seat 33 slide relatively, the guide groove and the guide protrusion are mutually matched to limit the sliding direction. Preferably, a guide groove is provided on the outside of the mounting seat 33, the guide groove and the guide hole 334 are located on the same side of the mounting seat 33, the guide groove is formed by extending the side wall of the mounting seat 33 away from the opening, the guide groove in fig. 7 and 8 has two forms, and extends downward from the side wall of the mounting seat 33 close to the side of the guide hole 334, the guide groove includes a first guide groove 335 and a second guide groove 336, and is integrally bent on one side of the mounting seat 33 to form a U-shaped groove, the U-shaped groove is semi-wound on one side of the guide hole 334 to serve as the first guide groove 335, by providing the first guide protrusion 3413 capable of slidably fitting with the first guide groove 335 on the guide rod 341, an open groove facing downward is further provided on the side wall of the U-shaped groove to serve as the second guide groove 336, and the second guide protrusion 3414 capable of fitting with the second guide groove 336 is provided on the guide rod 341. A first guide projection 3413 and a second guide projection 3414 are provided at a middle portion of the guide rod 341, the first guide projection 3413 is fitted into the first guide groove 335 provided on the mounting seat 33, and the second guide projection 3414 is fitted into the second guide groove 336 provided on the mounting seat 33. Therefore, the stroke mechanism 34 can only move up and down, and swing in other directions is avoided, and the matching stability of all parts is facilitated.

The specific operation of this embodiment is further described below with reference to fig. 10-19:

when the handle 11 is driven by the slider 22 of the electric driving module 2 to close the switch, at this time, the slider 22 horizontally slides along the fixing element 21 in the left direction in fig. 5, and the handle 11 swings toward the switch closing direction, as shown in fig. 10-11, the movable contact component 12 swings toward the fixed contact component and contacts with the fixed contact component, the movable contact component 12 is separated from the second end 3412 of the guide rod 341, the pressure spring 343 stretches to make the first end of the guide rod 341 drive the guide shaft 342 to slide downward (move forward) along the strip-shaped groove 332, the guide shaft 342 abuts against the abutting portion 312 of the rotation indicator 31 to drive the rotation indicator 31 to rotate to indicate the switch-on position, in the drawing, the switch-on rotation direction of the rotation indicator 31 is counterclockwise rotation, the switch-on mark of the indication area 311 displays an indication switch-on state in the display window, and at this time, the reset elastic element 32 stores energy.

When the sliding element 22 of the electric drive module 2 drives the handle 11 to open the brake, at this time, the sliding element 22 horizontally slides along the fixing element 21 in the direction to the right in fig. 5, the handle 11 swings towards the brake opening direction, as shown in fig. 12-15, at this time, the moving contact assembly 12 swings towards the direction away from the fixed contact assembly and is separated from the fixed contact assembly, the second end of the guide rod 341 abuts against the moving contact assembly 12 and compresses the compression spring 343 along with the brake opening operation of the moving contact assembly 12, at this time, the first end of the guide rod 341 drives the guide shaft 342 to move upward (move in the opposite direction) along the bar-shaped groove 332, the guide shaft 342 is separated from the abutting portion 312, the reset elastic element 32 rotates the rotation indicator 31 counterclockwise, but at this time, the brake opening pushing portion 2231 on the sliding element 22 moves rightward, the brake opening pushing portion 2231 cooperates with the brake opening cooperating portion 313 of the rotation indicator 31 to stop the rotation indicator 31, and at this time, the brake opening identifier of the indication region 311 displays the indication brake opening state in the display window.

When the main line of the circuit breaker 1 breaks down to trip the circuit breaker 1, as shown in fig. 16-19, at this time, the movable contact assembly 12 is separated from the fixed contact assembly, the tripping and opening action of the movable contact assembly 12 separates the guide shaft 342 from the abutting portion 321, the reset elastic element 32 enables the rotation indicator 31 to rotate counterclockwise, because the sliding element 22 is not located at the tripping position at this time, the tripping pushing portion 2231 is not limited by the tripping matching portion 313, the reset elastic element 32 releases energy to enable the rotation indicator 31 to directly rotate to be limited by the limiting boss 337, and the rotation indicator 31 displays tripping.

As shown in fig. 4-5, in a preferred embodiment of the electric drive module 2, the electric drive module 2 includes a fixed member 21, a sliding member 22, and a motor assembly 23, the fixed member 21 and the motor assembly 23 are fixed on the circuit breaker 1, an operation window 211 is provided on the fixed member 21, the sliding member 22 is assembled on the fixed member 21 through a sliding structure provided between the fixed member 21 and the sliding member 22, a first driving slot 221, a second driving slot 222, and a switching-off pushing portion 2231 are provided on the sliding member 22, the first driving slot 221 corresponds to the operation window 211, the handle 11 of the circuit breaker 1 sequentially passes through the first driving slot 221 and the operation window 211, the driving portion 231 of the motor assembly 23 extends into the second driving slot 222 to drive the sliding member 22 to relatively slide along the fixed member 21, and simultaneously, the first driving slot 221 of the sliding member 22 cooperates with the handle 11 to perform switching-on or switching-off swinging, and when the sliding member 22 performs switching-off movement, the switching-off pushing portion 2231 cooperates with the rotation indicator 31 in a limiting manner to enable the indicating module 3 to indicate a switching-off state.

As shown in fig. 5, the fixed member 21 is a plate-shaped structure, a rectangular slot serving as an operation window 211 is provided on the fixed member 21, the rectangular slot is located in the middle of the left plate surface in the drawing, a plurality of strip-shaped sliding slots 212 are provided on the fixed member 21, the opening direction of the sliding slots 212 is the same as the swinging direction of the handle 11 of the circuit breaker 1, the number of the sliding slots 212 is four in the drawing, four sliding slots 212 are provided in pairs on both sides of the fixed member 21, one pair of the sliding slots 212 are respectively located on both sides of the operation window 211, preferably, as shown in fig. 5, the inner diameters of one end portions of all the sliding slots 212 are enlarged, so that one end portions of the sliding slots 212 form assembly holes 213, and the assembly holes 213 are located at the left end portions of the sliding slots 212 in the drawing, thereby facilitating the assembly of the rollers 224 provided on the sliding member 22.

The sliding part 22 is also in a rectangular plate-shaped structure, and the size of the sliding part 22 is smaller than that of the fixed part 21, so that the sliding part 22 does not exceed the range of the fixed part 21 in the sliding process, and the sliding part 22 is prevented from being poorly matched with the fixed part 21 and occupying too much space in the circuit breaker 1. Two sides of the slider 22 are respectively provided with a groove penetrating through the front and back surfaces of the slider 22, one of the grooves is rectangular and serves as a first driving groove 221, the other groove serves as a second driving groove 222, two opposite side edges of the first driving groove 221 extend and bend towards the front or back surface of the slider 22 to form two pushing surfaces, in fig. 5, the two pushing surfaces both extend towards the bending away from the side of the fixing member 21 so as to avoid interference with the sliding fit between the slider 22 and the fixing member 21, one of the pushing surfaces serves as a first switching-off driving portion 2212, the other pushing surface serves as a first switching-on driving portion 2211, in the drawing, the left pushing surface serves as the first switching-off driving portion 2212, the right pushing surface serves as the first switching-on driving portion 2211, and the slider 22 performs switching-on and switching-off movements along the left and right directions.

Two edges of two sides of the middle portion of the second driving groove 222 protrude oppositely to form two right-angled portions, so that the second driving groove 222 is shaped like a dumbbell with two wide ends and a narrow middle portion, each of the two right-angled portions has a right-angled side parallel to the first closing driving portion 2211, one of the right-angled sides is used as the second closing driving portion 2222, the other right-angled side is used as the second closing driving portion 2221, the second closing driving portion 2221 and the second closing driving portion 2222 are opposite in parallel, and the second closing driving portion 2221 is closer to the first closing driving portion 2211 in fig. 5. The corner position of the sliding member 22 is provided with a roller 224, the roller 224 can be correspondingly assembled in the sliding groove 212 through the assembly hole 213 at the end of the sliding groove 212, preferably, a rolling groove is formed on the circumferential surface of the roller 224, the edge of the sliding groove 212 is clamped into the rolling groove, which is beneficial to stable matching of the roller 224 and the sliding groove 212, and certainly, the sliding member 22 is provided with a boss structure in sliding fit with the sliding groove 212, so that the sliding fit can be realized, but the sliding friction force generated by the cooperation of the boss structure and the sliding groove 212 is greater than the rolling friction force of the roller 224 and the sliding groove 212, and certain interference is provided for the relative sliding between the sliding member 22 and the fixing member 21.

An opening pushing part 2231 is arranged on one side of the first driving groove 221, as shown in fig. 5, an extending part 223 with a rod shape is formed by horizontally extending and protruding from an edge of one side of the sliding part 22, one end of the extending part 223 is bent to form the opening pushing part 2231 for matching with the indicating module 3 when the circuit breaker 1 is opened, the opening pushing part 2231 is arranged on one side far away from the first closing driving part 2211, the opening pushing part 2231 is arranged on the left side of the first opening driving part 2212 in the drawing, and after the assembly is finished, the opening pushing part 2231 is arranged on the left side of the opening matching part 313 of the rotation indicating member 31; further, the other end of the extension portion 223 is bent to form a reset pushing portion 2232, the reset pushing portion 2232 and the tripping pushing portion 2231 protrude from the front side and the back side of the sliding member 22 respectively, the reset pushing portion 2232 can extend into the inside of the circuit breaker 1, the reset pushing portion 2232 is located on one side close to the first switching-on driving portion 2211, after the circuit breaker 1 is located at the tripping position and the main line fault is removed, the operating handle 11 swings towards the tripping direction or the motor assembly 23 drives the sliding member 22 to move towards the tripping direction, at this moment, the rotating indicator 31 is switched to the tripping by tripping, and the reset pushing portion 2232 pushes the other end of the tripping rod 42 to reset the magnetic flux assembly 4.

As shown in fig. 1 to 4, 11 and 12, the motor assembly 23 is mounted on one side of the handle 11 of the circuit breaker 1, and the driving portion of the motor assembly 23 can be inserted into the second driving groove 222. In fig. 11, both the closing rotation and the opening rotation of the motor assembly rotate clockwise, but during the closing rotation, the driving portion 231 and the second closing driving portion 2221 abut against each other to drive the sliding member 22 and the fixing member 21 to relatively slide (horizontally slide to the left in the drawing), the first closing driving portion 2211 pushes the handle 11 to swing in the closing direction, and after the circuit breaker 1 is closed, the driving portion 231 is separated from the second closing driving portion 2221; when the motor assembly 23 performs opening rotation, the driving portion 231 and the second opening driving portion 2222 abut against each other to drive the sliding member 22 and the fixing member 21 to relatively slide (horizontally slide to the right in the drawing), and at this time, the opening pushing portion 2231 moves along with the sliding member 22 and cooperates with the rotating indicator 31 of the indicator module 3, so that the rotating indicator 31 stops rotating and opening is displayed in the display window.

Example two

Another preferred embodiment of the present invention is further described below in conjunction with fig. 20-33. The second embodiment is basically the same as the first embodiment in structure, and the second embodiment is a remote-controllable circuit breaker, which includes an electric driving module 2 and an indicating module 3, the electric driving module 2 realizes switching on and off of the remote-controllable circuit breaker 1 by driving a handle 11 of the circuit breaker 1, and the indicating module 3 is matched by the electric driving module 2 and a moving contact component 12 of the circuit breaker 1 together, so that the indicating module 3 can indicate three states of switching on, switching off and tripping of the circuit breaker 1.

The embodiment two is different from the embodiment one, the protection mechanism includes an electromagnetic assembly 4, the electromagnetic assembly 4 is triggered to trip and power off the circuit breaker 1 when a main line fails, after the magnetic flux assembly 4 is triggered to enable the circuit breaker 1 to be in a trip state, and when the slider 22 of the electric driving module 2 drives the handle 11 to swing to a tripping position, the slider 22 simultaneously drives the magnetic flux assembly 4 to reset, so that the circuit breaker 1 is tripped again, and the structure is simple and compact. As shown in fig. 5, the sliding member 22 is provided with a reset pushing portion 2232 for driving the magnetic flux assembly 4 to reset, and when the sliding member 22 of the electric drive module 2 drives the handle 11 to swing to the open position, the magnetic flux assembly 4 is driven to reset by the reset pushing portion 2232.

Based on the above functions of the embodiment, another improvement point of the present invention is that after the main line fault is resolved, when the electric driving module 2 switches the circuit breaker to the open-brake state for re-fastening, the electric driving module 2 can push the electromagnetic assembly 4 to return to the original position, and at this time, the indication module 3 is also driven by the electric driving module 2 to the indication open-brake position. Namely that the indicator module 3 comprises a rotatably mounted rotary indicator 31; the movable contact assembly 12 is matched with the indicating module 3, when the circuit breaker 1 is switched on, the rotating indicating piece 31 is enabled to rotate to indicate a switching-on position, when the circuit breaker 1 is tripped, the rotating indicating piece 31 is enabled to rotate to indicate a tripping position, when the circuit breaker 1 is switched off, the rotating indicating piece 31 is enabled to rotate, the electric driving module 2 and the rotating indicating piece 31 are enabled to be in limit fit to stop rotating to indicate the switching-off position, after the circuit breaker 1 is tripped, when the sliding piece 22 of the electric driving module 2 drives the handle 11 to swing to the switching-off position, the sliding piece 22 drives the magnetic flux assembly 4 to reset at the same time, and the rotating indicating piece 31 is driven to rotate to indicate the switching-off position. Of course, as another embodiment, the indication module 3 may not be provided.

As shown in fig. 20-21, the circuit breaker is in the closing position, the magnetic flux assembly 4 includes a bracket 41, and a coil 411 and a trip bar 42 mounted on the bracket 41, and one end of the trip bar 42 is disposed opposite to the trip half shaft 13, and the rotating indicator 31 of the indicating module 3 is in the indicating closing position. As shown in fig. 21-22, when a main line fails, the coil 411 drives the trip rod 42 to slide relatively along the bracket 42, one end of the trip rod 42 triggers the circuit breaker 1 to trip and power off, and the rotating indicator 31 rotates to the indicating trip position under the driving of the movable contact assembly 12. As shown in fig. 24-25, when the slider 22 moves the driving handle 11 in the opening direction to swing to the opening position after the main line fault is relieved, the slider 22 pushes the rotation indicator 31 to rotate to indicate the opening position, and the slider 22 pushes the other end of the trip rod 42 to reset the magnetic flux assembly 4, thereby realizing re-tripping.

Referring to fig. 4-5, the electric drive module 2 of this embodiment is the same as the first embodiment, and is different from the first embodiment in that a reset pushing portion 2232 for resetting the magnetic flux component 4 is further provided, an edge of one side of the sliding member 22 horizontally protrudes and extends to form an extending portion 223 which is rod-shaped as a whole, one end of the extending portion 223 is bent to form a switching-off pushing portion 2231, the other end of the extending portion 223 is bent to form a reset pushing portion 2232, the switching-off pushing portion 2231 and the reset pushing portion 2232 are bent and extend to the front side and the back side of the sliding member 22, that is, the switching-off pushing portion 2231 and the reset pushing portion 2232 extend in opposite directions and are respectively engaged with the indicating module 3 and the magnetic flux component 4 inside the base, and when the sliding member 22 slides in the switching-off direction, the switching-off pushing portion 2231 is engaged with the indicating module 2 to rotate the indicating module 2 to the indicating switching-off position; after the magnetic flux assembly 4 is triggered to enable the circuit breaker 1 to be in a tripping state, the sliding member 22 slides towards the opening direction to enable the indicating module 2 to rotate to the indicating opening position, and the reset pushing portion 2232 pushes the magnetic flux assembly 4 to reset. The extension 223 in this embodiment is a separate element mounted on the slider 22, but may be integrally formed with the slider 22 if desired.

An embodiment of a magnetic flux assembly 4 is provided in conjunction with fig. 26-33, where the magnetic flux assembly 4 includes a bracket 41, a coil 411, a trip bar 42 and a reset plate 43, the coil 411 is mounted on a lower portion of the bracket 41, the coil 411 is connected to a main circuit of the circuit breaker 1 through a power line, after the circuit breaker 1 fails, the coil 411 electrically drives a reset shaft 412 disposed in a middle portion of the coil 411 to act, the trip bar 42 is driven by the reset shaft 412, as shown in fig. 26 and 27, a first end of the reset shaft 412 can extend out of the coil 411 under the driving of the coil 411, and a first reset spring 413 is sleeved on a first end of the reset shaft 412.

As shown in fig. 26, 27, 29, 30, 32 and 33, the reset plate 43 is in a position-limiting fit with the trip bar 42 and is rotatably assembled at one end of the bracket 41, the upper portion of the reset plate 43 serves as a rotary connecting portion 431 and is provided with a connecting hole, in fig. 33, the rotary connecting portion 431 is bent and extended from the upper end of the reset plate 43 to form a U-shaped rotary connecting portion 431, in two opposite side walls of the rotary connecting portion 431, the connecting hole is provided, the lower end of the reset plate 43 is opposite to the first end of the reset shaft 412 through the connecting hole and a rotating shaft, one side wall of the rotary connecting portion 431 extends in parallel in a direction away from the reset plate 43 and is bent from one side edge thereof to form a position-limiting plate 432, the position-limiting plate 432 is in a position-limiting fit with the position-limiting slot 4233 on the trip bar 42, in fig. 32, the position-limiting plate 432 is bent from the lower side edge to form a horizontal plate-like structure, and after the position-limiting plate 432 is engaged with the position-limiting slot 4233, the trip bar 42 cannot slide relative to the bracket 41.

A guide surface 415 is arranged at the upper part of the bracket 41, and the integrally formed trip rod 42 is slidably assembled on the guide surface 415, as shown in fig. 32, the middle part of the trip rod 42 is a connecting plate 421 slidably engaged with the guide surface 415, two ends of the connecting plate 421 respectively extend perpendicularly to opposite sides to form a plate-shaped structure, one of the plate-shaped structures is used as a first pushing plate 422 to be opposite to the first end 3411 of the reset shaft 412, a through hole 4222 capable of allowing the first end 3411 of the reset shaft 412 to pass through is arranged at the middle part of the first pushing plate 422, and a space for avoiding the reset plate 43 from swinging is reserved in the through hole 4222, so that the reset shaft 412 passes through the through hole 4222 to be engaged with the reset plate 43; a driving flange 4221 capable of driving the trip half shaft 13 is formed at the end of the first pushing plate 422, and preferably, a push plate is disposed on a side of the first pushing plate 422 facing the first end 3411 of the reset shaft 412, and the push plate can press the first reset spring 413 disposed on the reset shaft 412 when the reset shaft 412 and the push plate move relatively.

Another plate-shaped structure is used as the second pushing plate 423, one surface of the second pushing plate 423, which faces away from the first pushing plate 422, is used as a pushing surface 4231 for matching with a reset pushing portion 2232 in the electric drive module 2, a side edge of the second pushing plate 423 extends in the direction of the first pushing plate 422 to form a limiting arm 4232, a limiting clamping groove 4233 matching with the limiting plate 432 is arranged on the limiting arm 4232, in fig. 32, a gap is left between the lower side of the limiting arm 4232 and the upper surface of the connecting plate 421, and the limiting clamping groove 4233 is arranged at the lower side edge of the limiting arm 4232, so that the limiting plate 432 can be matched with or separated from the limiting clamping groove 4233 during the rotation process of the resetting plate 43; the reset assembly is arranged on the connecting plate 421 and located on the same side as the limit arm 4232, the reset assembly includes a second reset spring 414, one end of the second reset spring 414 is fixed to the second pushing plate 423, and the other end of the second reset spring 414 is fixed to the bracket 41.

The working process of this embodiment is the same as that of the first embodiment in normal closing and opening operations, and will not be described again, and in normal opening operations, the main line fails, the electromagnetic assembly 4 does not operate, and the reset pushing portion 2232 moves along with the slider 22 and does not drive the electromagnetic assembly 4. When the main line fails, the electromagnetic assembly 4 operates to trip the circuit breaker 1, at this time, as shown in fig. 26-27, the reset shaft 412 of the magnetic flux assembly 4 is driven by the coil 411 to push the reset plate 43 to rotate, the limit plate 432 is disengaged from the limit clamping slot 4233, the second reset spring 414 drives the trip rod 42 to slide along the guide surface 415 of the bracket 41, the sliding direction is horizontal to the left in the figure, the first reset spring 413 on the reset shaft 412 is compressed, and the drive flange 4221 on the first push plate 422 triggers the trip half shaft 13 to rotate. The tripping half shaft 13 rotates to trip the operating mechanism, so that the movable contact assembly 12 is separated from the fixed contact assembly, the second end of the guide rod 341 abuts against the movable contact assembly 12 and compresses the compression spring 343 along with the opening action of the movable contact assembly 12, at this time, the first end of the guide rod 341 drives the guide shaft 342 to move upwards (move reversely) along the strip-shaped groove 332, so that the guide shaft 342 is separated from the abutting part 321, the reset elastic part 32 enables the rotation indicating part 31 to rotate anticlockwise, because the sliding part 22 is not at the opening position at this time, so that the opening pushing part 2231 is not limited by the opening matching part 313, the reset elastic part 32 releases energy to enable the rotation indicating part 31 to directly rotate to be limited by the limiting boss 337, and the rotation indicating part 31 displays tripping.

After the fault of the main line of the circuit breaker 1 is relieved, the slider 22 of the electric drive module 2 drives the handle 11 to swing to the opening position, as shown in fig. 24-25, the slider 22 moves towards the opening direction (horizontally to the right in the figure), the opening pushing portion 2231 on the slider 22 abuts against the opening matching portion 313 of the rotating indicator 31, so that the rotating indicator 31 is pushed to the opening position, in the process, the slider 22 needs to overcome the elastic resistance of the return elastic member 32, the return pushing portion 2232 pushes the pushing surface 4231 of the second pushing plate 423, so that the trip rod 42 slides along the guide surface 415 of the bracket 41 (horizontally to the right in the figure), in the sliding process, the second return spring 414 is compressed, the limit plate 432 is clamped into the limit clamping groove 4233, so that the trip rod 42 and the return plate 43 recover the original state of the limit matching, the first return spring 413 also recovers to the original state, at this time, the magnetic flux assembly 4 completely recovers, and realizes re-tripping.

EXAMPLE III

The invention also provides another circuit breaker, which comprises an indication module 3, wherein the indication module 3 is matched with the movable contact assembly 12 of the circuit breaker 1 and is only used for indicating the closing state and the opening state of the circuit breaker 1. Referring to fig. 6-8, the indicating module 3 includes a mounting seat 33, a rotation indicating member 31, a reset elastic member 32 and a stroke mechanism 34, the rotation indicating member 31 is rotatably assembled on the mounting seat 33 for indicating a switching-on or switching-off state of the circuit breaker 1, the reset elastic member 32 is respectively connected with the mounting seat 33 and the rotation indicating member 31, the stroke mechanism 34 includes a guide rod 341, the guide rod 341 is slidably assembled on the mounting seat 33, one end of the guide rod 341 is matched with the rotation indicating member 31, and the other end of the guide rod 341 extends out of the mounting seat 33 for being matched with the movable contact assembly 12, the indicating module adopts a modular design and includes the mounting seat, the rotation indicating member, the reset elastic member and the stroke mechanism, and is assembled into a whole and then installed on the circuit breaker to be matched with the movable contact assembly, so that the structure is simple and convenient to assemble.

The third embodiment is different from the first embodiment in that the indicating module 3 is only matched with the movable contact assembly 12 for indicating the closing and opening states, and is not matched with the electric driving module 2. In the circuit breaker of the embodiment, when the circuit breaker 1 is switched on, the movable contact assembly 12 drives the guide rod 341 to enable the rotation indicating member 31 to rotate to one side to indicate a switch-on position, when the circuit breaker 1 is switched off, the movable contact assembly 12 is separated from the guide rod 341, the guide rod 341 is not in limit fit with the rotation indicating member 31, and the reset elastic member 32 drives the rotation indicating member 31 to rotate to the other side to indicate a switch-off position; or, when the circuit breaker 1 is switched on, the movable contact assembly 12 is separated from the guide rod 341, the guide rod 341 is disengaged from the rotation indicator 31, the reset elastic element 32 drives the rotation indicator 31 to rotate to the other side to indicate the switch-on position, and when the circuit breaker 1 is switched off, the movable contact assembly 12 drives the guide rod 341 to enable the rotation indicator 31 to rotate to one side to indicate the switch-off position. Referring to fig. 6, the indication area 311 of the rotating indicator 31 is only provided with a closing mark and an opening mark, and indicates a closing position when the rotating indicator 31 rotates to the state that the closing mark corresponds to the display window of the circuit breaker, and indicates an opening position when the rotating indicator 31 rotates to the state that the opening mark corresponds to the display window.

The indicating module 3 of the third embodiment is not engaged with the electric driving module 2, so that the slider 22 of the electric driving module 2 does not need to be provided with the opening engaging portion 313. Of course, as another embodiment, the indication module 3 may not be provided with the electric driving module 2, and when the user drives the circuit breaker to open and close through the handle 11, the indication module 3 cooperates with the movable contact assembly 12 to indicate the state of the circuit breaker.

Referring to fig. 6, the stroke mechanism 34 of the indicating module 3 further includes a guiding shaft 342 and a pressure spring 343, the first end 3411 of the guiding rod 341 extends into the mounting seat 33, the guiding shaft 342 is mounted on the first end 3411 of the guiding rod 341 and is in sliding fit with the mounting seat 33, the second end 3412 of the guiding rod 341 extends out of the mounting seat 33 and is in fit with the movable contact assembly 12, a limiting portion is disposed between the first end 3411 and the second end 3412 of the guiding rod 341, and the pressure spring 343 is disposed on the guiding rod 341 and is located between the limiting portion and the mounting seat 33; the rotation indicator 31 is provided with an abutting portion 312, and the guide rod 341 is engaged with the abutting portion 312 through the guide shaft 342.

When the circuit breaker 1 is switched on, the movable contact assembly 12 is separated from the second end 3412 of the guide rod 341, the pressure spring 343 is stretched to enable the guide rod 341 to move forward, and the guide shaft 342 is matched with the abutting part 312 of the rotating indicator 31 to enable the rotating indicator 31 to rotate to one side to indicate a switching-on position; when the circuit breaker 1 is opened, the movable contact assembly 12 abuts against the second end 3412 of the guide rod 341 to reversely move the guide rod 341, the guide shaft 342 is separated from the abutting portion 312 of the rotation indicator 31 to release the limit fit, and the return elastic member 32 drives the rotation indicator 31 to rotate to the other side to indicate the opening position.

The structure of the mounting seat 33 is basically the same as that of the first embodiment, and a micro switch 35 is provided, and a guide groove and a guide protrusion for providing a guide function are provided between the guide rods 341 and the mounting seat 33, which will not be described again. A limit boss 337 is provided in the mounting seat 33 to cooperate with the rotation indicator 31, and the difference from the first embodiment is that the limit boss 337 is used for limiting the elastic return element 32 to drive the rotation indicator 31 to rotate to the other side to indicate the opening position, instead of the tripping position.

The structure of the rotating indicator 31 is basically the same as that of the first embodiment, and is not described again, but the difference is that only a closing mark and an opening mark are set in an indication area 311 of the rotating indicator 31, the rotating indicator 31 is integrally of a polygonal annular structure, the indication area 311 is set on the outer side surface of the polygonal annular structure, and the indication area 311 is formed by sequentially marking the closing mark and the opening mark on two continuous side edge surfaces; the rotating indicator 31 is provided with a rotating installation part 314 opposite to the indication area 311, the rotating indicator 31 is rotatably assembled through the rotating installation part 314, the inner side wall of the polygonal annular structure forms the abutting part 312, and the guide shaft 342 penetrates through the rotating indicator 31 to be matched with the abutting part 312.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims (11)

1. The utility model provides a but remote control's circuit breaker, includes electric drive module (2) and magnetic flux subassembly (4), electric drive module (2) include slider (22), slider (22) and handle (12) cooperation are with drive circuit breaker (1) divide-shut brake, its characterized in that:

after the magnetic flux assembly (4) is triggered to enable the circuit breaker (1) to be in a tripping state, when the sliding part (22) of the electric driving module (2) drives the handle (11) to swing to a tripping position, the sliding part (22) simultaneously drives the magnetic flux assembly (4) to reset, and then the circuit breaker (1) is buckled again.

2. The remotely controllable circuit breaker as claimed in claim 1, wherein: the circuit breaker further comprises an indicating module (3) used for indicating the switching-on, switching-off or tripping state of the circuit breaker (1), wherein the indicating module (3) comprises a rotary indicating piece (31) which is rotatably installed;

the movable contact assembly (12) is matched with the indicating module (3), when the circuit breaker (1) is switched on, the rotating indicating piece (31) is enabled to rotate to an indicating switching-on position, when the circuit breaker (1) is tripped, the rotating indicating piece (31) is enabled to rotate to an indicating tripping position, when the circuit breaker (1) is switched off, the rotating indicating piece (31) is enabled to rotate, the electric driving module (2) is in limit fit with the rotating indicating piece (31) to enable the rotating indicating piece (31) to stop rotating at the indicating switching-off position, after the circuit breaker (1) is tripped, when a driving handle (11) of a sliding piece (22) of the electric driving module (2) swings to the switching-off position, the sliding piece (22) simultaneously drives the magnetic flux assembly (4) to reset, and the rotating indicating piece (31) is driven to rotate to the indicating switching-off position.

3. The remotely controllable circuit breaker as claimed in claim 1, wherein: the magnetic flux assembly (4) comprises a bracket (41), and a coil (411) and a trip bar (42) which are assembled on the bracket (41); when a main line has a fault, the coil (411) drives the tripping rod (42) to relatively slide along the bracket (42), one end of the tripping rod (42) triggers the circuit breaker (1) to trip and power off, and when the sliding part (22) moves the driving handle (11) to the opening direction to swing to the opening position after the fault of the main line is relieved, the sliding part (22) pushes the other end of the tripping rod (42) to reset the magnetic flux component (4).

4. A remotely controllable circuit breaker as claimed in claim 2, wherein: the shell of the circuit breaker comprises a base, a middle cover (14) and an outer cover (15), wherein a contact mechanism, an operating mechanism, an arc extinguishing mechanism and a magnetic flux assembly (4) of the circuit breaker (1) are arranged in the base, the contact mechanism comprises a moving contact assembly (12) and a fixed contact assembly, the moving contact assembly (12) is connected to the operating mechanism, the middle cover (14) covers the base, a handle (11) is connected with the operating mechanism in a linkage mode and extends out of the middle cover (14), an electric driving module (2) and an indicating module (3) are fixed to the middle cover (14) of the circuit breaker (1), the outer cover (15) covers the middle cover (14), a display window is arranged on the outer cover (15), and the indicating module (3) is assembled between the moving contact assembly (12) and the display window and located on one side of the electric driving module (2) and the handle (11).

5. A remotely controllable circuit breaker as claimed in claim 2, wherein: the indicating module (3) comprises a rotating indicating piece (31), a resetting elastic piece (32) and a stroke mechanism (34), the moving contact component (12) is matched with the stroke mechanism (34) to drive the rotating indicating piece (31) to rotate to one side, and the resetting elastic piece (32) drives the rotating indicating piece (31) to rotate to the other side; the indicating module (3) further comprises a mounting seat (33), the rotating indicating piece (31) is rotatably assembled on the mounting seat (33), the resetting elastic piece (32) is respectively connected with the mounting seat (33) and the rotating indicating piece (31), the stroke mechanism (34) comprises a guide rod (341), the guide rod (341) is slidably assembled on the mounting seat (33), one end of the guide rod (341) is matched with the rotating indicating piece (31), and the other end of the guide rod (341) extends out of the mounting seat (33) and is used for being matched with the moving contact component (12).

6. A remotely controllable circuit breaker as claimed in claim 2, wherein: electric drive module (2) are including mounting (21), slider (22) and motor element (23), mounting (21) and motor element (23) are fixed on circuit breaker (1), slider (22) and mounting (21) sliding fit, and slider (22) can be driven by motor element (23) and follow the relative slip of mounting (21).

7. The remotely controllable circuit breaker as claimed in claim 6, wherein: the sliding part (22) is of a plate-shaped structure as a whole, the edge of one side of the sliding part (22) horizontally protrudes and extends to form an extending part (223), one end of the extending part (223) is bent to form a separating brake pushing part (2231), the other end of the extending part (223) is bent to form a reset pushing part (2232), and the separating brake pushing part (2231) and the reset pushing part (2232) respectively bend and extend towards the front side and the back side of the sliding part (22);

when the sliding piece (22) slides towards the opening direction, the opening pushing part (2231) is matched with the indicating module (2) to enable the indicating module (2) to rotate to the indicating opening position; after the magnetic flux assembly (4) is triggered to enable the circuit breaker (1) to be in a tripping state, the sliding piece (22) slides towards the opening direction to enable the indicating module (2) to rotate to the indicating opening position, and meanwhile, the reset pushing portion (2232) pushes the magnetic flux assembly (4) to reset.

8. A remotely controllable circuit breaker as claimed in claim 1 wherein: magnetic flux subassembly (4) are including support (41) and coil (411) and trip bar (42) of assembly on support (41), coil (411) are fixed to be assembled on support (41) and connect on the major loop of circuit breaker (1) through the power cord, are equipped with in coil (411) middle part can be by reset shaft (412) of coil (411) drive reset shaft (412) go up the cover and are equipped with first reset spring (413), trip bar (42) slide to assemble on support (41) and can carry out relative slip along support (41), and the one end of trip bar (42) is relative with reset shaft (412) and triggers circuit breaker (1) dropout outage under the drive of reset shaft (412), and the other end of trip bar (42) is equipped with and pushes away movable surface (4231) with electric drive module (2) complex.

9. The remotely controllable circuit breaker as claimed in claim 8, wherein: magnetic flux subassembly (4) still include by reset plate (43) of reset shaft (412) driven, reset plate (43) rotate assembly on support (41) and with trip bar (42) spacing cooperation, after coil (411) got electric, reset shaft (412) drive reset plate (43) rotated in order to relieve reset plate (43) and the spacing cooperation of trip bar (42), and reset shaft (412) drive trip bar (42) take place relative slip in order to trigger inside tripping half axle (13) of circuit breaker (1) and make the circuit breaker trip.

10. The remotely controllable circuit breaker as claimed in claim 9, wherein: the upper end of the reset plate (43) is bent and extends to form a U-shaped rotary connecting part (431), the reset plate (43) is rotatably assembled at one end of the bracket (41) through the rotary connecting part (431), one side wall of the rotary connecting part (431) extends in parallel in the direction away from the reset plate (43) and is bent from one side edge to form a limit plate (432), the limit plate (432) is matched with a limit clamping groove (4233) on the trip bar (42) for limiting, and the lower end of the reset plate (43) is opposite to the first end (3411) of the reset shaft (412);

the middle part of the trip lever (42) is provided with a connecting plate (421) which is in sliding fit with the support (41), two ends of the connecting plate (421) respectively extend towards two opposite sides to form a plate-shaped structure, one of the plate-shaped structures is used as a first pushing plate (422) to be opposite to the first end (3411) of the reset shaft (412), and a driving convex edge (4221) capable of driving the trip half shaft (13) to act is formed at the tail end of the first pushing plate (422) in a protruding mode; the other plate-shaped structure is used as a second pushing plate (423), one surface, back to the first pushing plate (422), of the second pushing plate (423) is used as a pushing surface (4231), a second reset spring (414) is connected between the second pushing plate (423) and the support (41), the side edge of the second pushing plate (423) extends towards the direction of the first pushing plate (422) to form a limiting arm (4232), and a limiting clamping groove (4233) matched with the limiting plate (432) is formed in the limiting arm (4232).

11. A remotely controllable circuit breaker as claimed in claim 2, wherein:

the magnetic flux assembly (4) comprises a bracket (41), and a coil (411) and a trip bar (42) which are assembled on the bracket (41); when a main line has a fault, the coil (411) drives the trip rod (42) to relatively slide along the support (42), one end of the trip rod (42) triggers the circuit breaker (1) to trip and power off, after the main line fault is relieved, when the sliding piece (22) moves the driving handle (11) towards the opening direction to swing to the opening position, the sliding piece (22) pushes the rotating indicator (31) to rotate to the indicating opening position, and the sliding piece (22) pushes the other end of the trip rod (42) to reset the magnetic flux component (4).

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