CN214956687U - Circuit breaker - Google Patents

Abstract

The utility model provides a circuit breaker, includes indicating module, indicating module is used for instructing the combined floodgate or the separating brake state of circuit breaker with the moving contact subassembly cooperation of circuit breaker, indicating module includes mount pad, rotation indicator, the elastic component that resets and stroke mechanism, rotate indicator rotation assembly and be used for instructing the combined floodgate or the separating brake state of circuit breaker on the mount pad, the elastic component that resets is connected with mount pad and rotation indicator respectively, stroke mechanism includes the guide arm, the guide arm sliding assembly is on the mount pad, the one end and the rotation indicator cooperation of guide arm, the other end of guide arm stretch out the mount pad and be used for outward with the moving contact subassembly cooperation. The utility model discloses a circuit breaker, be equipped with moving contact subassembly complex indicating module, can reflect the true state of circuit breaker for instruct combined floodgate and separating brake of circuit breaker, in addition, indicating module adopts the modular design, simple structure convenient assembling.

Description

Circuit breaker

Technical Field

The utility model relates to a low-voltage apparatus field, concretely relates to circuit breaker.

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 an opening state and a closing state, and in an existing product, a control circuit, a driving motor and other devices are usually added to a handle position of the molded case circuit breaker to indicate a state of the circuit breaker, but the handle of the circuit breaker is usually shielded after the control circuit, so that an operator cannot see a real state of the circuit breaker and inconvenience is caused.

Disclosure of Invention

An object of the utility model is to overcome prior art's defect, provide a circuit breaker with movable contact subassembly complex modular indication module.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a circuit breaker, includes indicating module, indicating module is used for instructing the combined floodgate or the separating brake state of circuit breaker with the moving contact subassembly cooperation of circuit breaker, indicating module includes mount pad, rotation indicator, the elastic component that resets and stroke mechanism, rotate indicator rotation assembly and be used for instructing the combined floodgate or the separating brake state of circuit breaker on the mount pad, the elastic component that resets is connected with mount pad and rotation indicator respectively, stroke mechanism includes the guide arm, the guide arm sliding assembly is on the mount pad, the one end and the rotation indicator cooperation of guide arm, the other end of guide arm stretch out the mount pad and be used for outward with the moving contact subassembly cooperation.

Further, when the breaker is switched on, the moving contact component drives the guide rod to enable the rotating indicating part to rotate to one side to an indicating switch-on position, when the breaker is switched off, the moving contact component is separated from the guide rod, the guide rod and the rotating indicating part are released from limiting fit, the reset elastic part drives the rotating indicating part to rotate to the other side to an indicating switch-off position,

or when the breaker is switched on, the moving contact component is separated from the guide rod, the guide rod is disengaged from the rotating indicating part in a limiting fit mode, the reset elastic part drives the rotating indicating part to rotate to the other side to the indicating switching-on position, and when the breaker is switched off, the moving contact component drives the guide rod to enable the rotating indicating part to rotate to the one side to the indicating switching-off position.

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 protection mechanism of the circuit breaker are arranged in the base, the contact mechanism comprises a movable contact component and a fixed contact component, the movable contact component 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, the indication module is fixed on the middle cover of the circuit breaker, the outer cover is covered on the middle cover, a display window is arranged on the outer cover, and the indication module is assembled between the movable contact component and the display window.

The stroke mechanism further comprises a guide shaft and a pressure spring, wherein the first end of the guide rod extends into the mounting seat, the guide shaft is mounted on the first end of the guide rod and is in sliding fit with the mounting seat, the second end of the guide rod extends out of the mounting seat and is matched with the moving contact assembly, a limiting part is arranged between the first end and the second end of the guide rod, and the pressure spring is sleeved on the guide rod and is positioned between the limiting part and the mounting seat; the rotating indicator is provided with a propping part, and the guide rod is matched with the propping part through the guide shaft.

Further, when the circuit breaker is switched on, the movable contact assembly is separated from the second end of the guide rod, the guide rod moves in the positive direction due to the stretching of the pressure spring, and the guide shaft is matched with the abutting part of the rotating indicating piece to enable the rotating indicating piece to rotate to one side to indicate the switching-on position;

when the circuit breaker is opened, the movable contact assembly abuts against the second end of the guide rod to enable the guide rod to move reversely, the abutting part of the guide shaft and the rotating indicating piece is separated to remove the limit fit, and the reset elastic piece drives the rotating indicating piece to rotate to the other side to indicate the opening position.

Further, the mount pad has and holds the chamber, and the uncovered that holds chamber one end is corresponding with the display window of circuit breaker, is equipped with the guiding hole that supplies stroke mechanism to pass on mount pad and uncovered relative other end, is equipped with perforation and bar groove on holding two relative lateral walls in chamber, through it makes to rotate indicator by the rotation assembly in the mount pad to assemble a connecting axle in the perforation, and bar groove and mount pad sliding fit are passed through to the both ends of guiding axle.

Furthermore, the whole rotating indicator is of a polygonal annular structure, the outer side surface of the polygonal annular structure is provided with an indicating area, and the surfaces of two continuous side edges are sequentially marked with a closing mark and a separating mark to form the indicating area; the rotation indicator is provided with the relative rotation installation department with the instruction area, rotates the indicator and rotates the assembly through rotating the installation department, polygon annular structure's inside wall forms support the portion of leaning on, the guiding axle passes rotate the indicator and support the cooperation of portion.

Furthermore, a limiting boss matched with the rotating indicating piece is arranged in the mounting seat and used for limiting the rotating indicating piece to rotate to the other side by the driving of the reset elastic piece.

And the movable contact assembly is matched with the guide rod to enable the guide rod to trigger the microswitch to output a signal when the circuit breaker is switched on or switched off.

And furthermore, the remote driving circuit breaker further comprises an electric driving module, and the electric driving module is matched with a handle of the circuit breaker to realize the opening and closing of the remote driving circuit breaker.

Furthermore, a guide groove and a guide protrusion for providing a guide function are arranged between the guide rod mounting seats, and the guide groove and the guide protrusion are matched with each other when the guide rod and the mounting seats slide relatively;

the guide groove is arranged outside the mounting seat, the guide groove and the guide hole are positioned at the same end of the mounting seat, the guide groove is formed by extending the side wall of the mounting seat to the direction far away from the opening, the guide groove comprises a first guide groove and a second guide groove, the first guide groove is formed by integrally bending one side of the mounting seat into a U-shaped groove, the first guide groove is semi-encircled at one side of the guide hole, an open groove is arranged on the side wall of the first guide groove, and the open groove is used as the second guide groove;

the middle part of the guide rod is provided with a first guide boss and a second guide boss, the first guide boss is matched with and extends into a first guide groove formed in the mounting seat, and the second guide boss is matched with and extends into a second guide groove formed in the mounting seat.

The utility model discloses a circuit breaker, be equipped with moving contact assembly complex indicating module, can reflect the true condition of circuit breaker for instruct combined floodgate and separating brake of circuit breaker, indicating module adopts the modular design, including mount pad, rotation indicator, the elastic component and the stroke mechanism that resets, install again after as an organic whole on the circuit breaker with moving contact assembly cooperation, simple structure convenient assembling.

In addition, the circuit breaker is equipped with the remote control that electric drive module can realize opening and closing the brake to the circuit breaker, and electric drive module and handle cooperation can not shelter from indicating module, and the user of being convenient for directly looks over the circuit breaker state.

Drawings

Fig. 1 is a schematic structural diagram of an electric driving module and an indicating module in the present invention;

fig. 2 is a schematic structural diagram of an electric driving module, an indicating module and a magnetic flux assembly in the present invention;

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

fig. 4 is a schematic diagram of the present invention in which the motor assembly and the indicating module are assembled to the circuit breaker;

fig. 5 is a schematic structural view of the fixed member and the sliding member of the present invention;

fig. 6 is a schematic structural diagram of an indication module in the present invention;

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

fig. 8 is an exploded view of an indicator block of the present invention;

fig. 9 is a cross-sectional view of the indicating module (closing state)

Fig. 10 is a cross-sectional view of the present invention in a closing state;

fig. 11 is a schematic view of the sliding member in the closing state of the present invention;

fig. 12 is a schematic view of the sliding member in the opening state of the present invention;

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

fig. 14 is a 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 invention in a tripped state;

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

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

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

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

fig. 23 is a schematic view of the 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 flux assembly and trip half shaft of the present invention in a reseuck condition;

fig. 26 is a schematic structural view of the magnetic flux assembly in a tripped state according to 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 structural view of the magnetic flux assembly of the present invention in a re-latching state;

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

FIGS. 30-31 are schematic views of the structure 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 structural view of a reset plate in the middle magnetic flux assembly of the present invention.

Detailed Description

The following description will further describe 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 indication 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 drive module 2 and the handle 11, and the indication 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 drive module 2 is arranged above the handle 11 and 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 indication module 3 by arranging the indication module 3 matched with the movable 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 component 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 this embodiment includes base, well lid 14 and enclosing cover 15, is equipped with the contact mechanism, operating device, arc extinguishing mechanism and the protection mechanism of circuit breaker 1 in the base, contact mechanism includes movable contact subassembly 12 and the static contact subassembly of mutually supporting, and movable contact subassembly 12 is connected on operating device, and well lid 14 lid closes on the base and seals the base, and handle 11 is connected with operating device linkage and can stretch out from the middle part of well lid 14, can make operating device drive movable contact subassembly 12 swing and the contact separation of static contact subassembly through the swing of the branch closing direction that carries on of handle 11, realizes closing and separating of circuit breaker 1. 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 utility model discloses an improvement point lies in, indication module 3 not only cooperates with moving contact assembly 12, still cooperates with electric drive module 2, indication module 3 cooperates jointly by moving contact assembly 12 of electric drive module 2 and circuit breaker 1, makes indication module 3 can instruct circuit breaker 1 to close a floodgate, separating brake and three kinds of states of dropout. 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.

Because the circuit breaker is when separating brake state and dropout state, its movable contact subassembly 12 position is the same, compares current circuit breaker 1, the utility model discloses an indication module 3 is when the circuit breaker separating brake, and movable contact subassembly 12 makes rotation indicator 31 rotate and electric drive module 2 and the spacing cooperation of rotation indicator 31 make rotation indicator 31 stall instruct the separating brake position with the cooperation of indication module 3, can distinguish the separating brake state and the dropout state of circuit breaker, realizes the instruction of three kinds of states, does benefit to the accurate state of confirming the circuit breaker of user.

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 lies in that, the magnetic flux assembly 4 is reset through the electric driving module 2 to realize re-buckling, after the main circuit is failed, the magnetic flux assembly 4 is triggered to make the circuit breaker 1 in the tripping state, and when the slider 22 driving handle 11 of the electric driving module 2 swings to the opening position, the slider 22 simultaneously drives the magnetic flux assembly 4 to reset to realize re-buckling 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 will be further described with reference to fig. 1 to 19.

As shown in fig. 6-9, the preferred embodiment of the indicating module 3 of the present invention, the indicating module 3 is of 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 the 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 seat 33, and the limiting boss 337 positions the position where the reset elastic member 32 drives the rotation indicator 31 to reset and rotate, 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; one side that rotation indicator 31 kept away from indication area 311 is equipped with the rotation installation department 314 relative with indication area 311, and rotation indicator 31 rotates the assembly through rotation installation department 314, polygon annular structure's inside wall forms support portion 312, support portion 312 and indication area 311 relatively, guide shaft 342 passes rotation indicator 31 and support portion 312 cooperation rotate indicator 31's axial one side protrusion and be 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 divides the brake sign, separating brake cooperation portion 313 stretches out the mount pad 33 outside and cooperates with electric drive module 2 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 closed, the moving contact assembly 12 is separated from the second end 3412 of the guide rod 341, the pressure spring 343 is stretched to move the guide rod 341 in the forward direction, the guide shaft 342 is engaged 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 the indicating closing 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 formed outside 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 in the direction away from the opening, the guide grooves in fig. 7 and 8 have two forms, extending downward from the side wall of the mount 33 near one side of the guide hole 334, including a first guide groove 335 and a second guide groove 336, and is integrally bent at one side of the mounting seat 33 to form a U-shaped groove, which is semi-surrounded at one side of the guide hole 334 as a first guide groove 335, by providing the guide rod 341 with the first guide boss 3413 capable of slidably fitting with the first guide groove 335, the side wall of the U-shaped groove is also provided with an open groove with a downward opening, the open groove is used as a second guide groove 336, and a second guide boss 3414 capable of being engaged 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 to close by the slider 22 of the electric drive module 2, at this time, the slider 22 horizontally slides along the fixing member 21 in the left direction in fig. 5, the handle 11 swings towards the closing direction, as shown in fig. 10-11, the movable contact component 12 swings towards 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 downwards (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 closing position, the closing rotation direction of the rotation indicator 31 in the drawing is counterclockwise rotation, the closing indication mark of the indication area 311 displays the indication closing state in the display window, and at this time, the reset elastic element 32 stores energy.

When the sliding part 22 of the electric driving module 2 drives the handle 11 to open the brake, at this time, the sliding part 22 horizontally slides along the fixing part 21 in the direction of the right side in fig. 5, the handle 11 swings in the direction of opening the brake, as shown in fig. 12-15, at this time, the moving contact assembly 12 swings away from the fixed contact assembly and separates 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 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 reversely) along the strip-shaped groove 332, the guide shaft 342 separates from the abutting portion 312, the reset elastic member 32 makes the rotation indicator 31 rotate counterclockwise, however, at this time, the opening pushing portion 2231 on the sliding member 22 moves to the right, the opening pushing portion 2231 cooperates with the opening cooperating portion 313 of the rotating indicator 31 to stop the rotating indicator 31, and at this time, the opening mark of the indicating area 311 displays the indicating 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 driving module 2, the electric driving 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 at the same time, the first driving slot 221 of the sliding member 22 cooperates with the handle 11 to perform switching-on or switching-off swinging, when the sliding member 22 performs the opening motion, the opening pushing portion 2231 makes the indicating module 3 indicate the opening state by the limit fit with the rotating indicator 31.

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

The sliding part 22 is also of 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 excessive 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 of the second driving slot 222 protrude oppositely to form two straight angle portions, so that the second driving slot 222 is overall in a dumbbell shape with two wide ends and a narrow middle, each of the two straight angle portions has a right angle side parallel to the first switching-on driving portion 2211, one of the right angle sides is used as a second switching-off driving portion 2222, the other right angle side is used as a second switching-on driving portion 2221, the second switching-on driving portion 2221 and the second switching-off driving portion 2222 are kept in parallel and opposite, and the second switching-on driving portion 2221 is closer to the first switching-on 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 which is rod-shaped as a whole is formed by horizontally extending and protruding from an edge of one side of the sliding member 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 figure, and after the assembly is completed, 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 displays opening 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-mentioned function of this embodiment, the utility model discloses a another improvement point does, after the main line trouble is relieved, when detaining again through switching circuit breaker to the separating brake state with electric drive module 2, electric drive module 2 can promote the recovery normal position of electromagnetic component 4, and instruction module 3 also is driven to instructing the separating brake position by electric drive module 2 this moment. 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 an indicating switch-on position, when the circuit breaker 1 is tripped, the rotating indicating piece 31 is enabled to rotate to an indicating trip 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 matching to enable the rotating indicating piece 31 to stop rotating at the indicating switch-off position, after the circuit breaker 1 is tripped, when the sliding piece 22 driving handle 11 of the electric driving module 2 swings to the switch-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 switch-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 limit 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, and is rotatably assembled at one end of the bracket 41 through the connecting hole and a rotating shaft, so that the lower end of the reset plate 43 is opposite to the first end of the reset shaft 412, 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 limit plate 432, the limit plate 432 is in limit fit with the limit catch 4233 on the trip bar 42, in fig. 32, the limit plate 432 is bent from the lower side edge to form a horizontal plate-shaped structure, after the limit plate 432 is engaged with the limit catch 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 is opposite to the first pushing plate 422, is used as a pushing surface 4231 for being matched 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 matched 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 and the limiting clamping groove 4233 can be matched or separated by the resetting plate 43 in the rotation process; 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 to 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 return to the original state of the limit matching, the first return spring 413 returns to the original state, at this time, the magnetic flux assembly 4 is completely returned, and realizing the refastening.

EXAMPLE III

The utility model discloses still provide another kind of circuit breaker, the circuit breaker includes indication module 3, indication module 3 and the movable contact subassembly 12 cooperation of circuit breaker 1, only be used for instructing the combined floodgate state and the separating brake state of 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 enable the guide rod 341 to move reversely, the guide shaft 342 is separated from the abutting portion 312 of the rotation indicating member 31 to release the limit fit, and the reset elastic member 32 drives the rotation indicating member 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, which differs from the first embodiment in that the limit boss 337 is used to limit the rotation indicator 31 to rotate to the other side to indicate the opening position, rather than the tripping position, by the elastic return element 32.

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 present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (11)

1. The utility model provides a circuit breaker, includes indicating module (3), indicating module (3) and moving contact subassembly (12) cooperation of circuit breaker (1) are used for instructing the combined floodgate or the separating brake state of circuit breaker (1), its characterized in that:

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 or switching-off 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), and the other end of the guide rod (341) extends out of the mounting seat (33) and is used for being matched with the movable contact assembly (12).

2. A circuit breaker according to claim 1, wherein:

when the circuit breaker (1) is switched on, the movable contact component (12) drives the guide rod (341) to enable the rotating indicator (31) to rotate to one side to indicate a switch-on position, when the circuit breaker (1) is switched off, the movable contact component (12) is separated from the guide rod (341), the guide rod (341) is released from limiting fit with the rotating indicator (31), the reset elastic piece (32) drives the rotating indicator (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 component (12) is separated from the guide rod (341), the guide rod (341) is separated from the rotating indicating piece (31) in a limiting fit, the reset elastic piece (32) drives the rotating indicating piece (31) to rotate to the other side to the indicating switching-on position, and when the circuit breaker (1) is switched off, the movable contact component (12) drives the guide rod (341) to enable the rotating indicating piece (31) to rotate to one side to the indicating switching-off position.

3. A circuit breaker according to claim 1, 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 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, the movable 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 indication module (3) is 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 indication module (3) is assembled between the movable contact assembly (12) and the display window.

4. A circuit breaker according to claim 1, wherein: the stroke mechanism (34) further comprises 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 part is arranged 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 positioned between the limiting part and the mounting seat (33); the rotating indicator (31) is provided with an abutting part (312), and the guide rod (341) is matched with the abutting part (312) through the guide shaft (342).

5. A circuit breaker according to claim 4, wherein:

when the circuit breaker (1) is switched on, the movable contact component (12) is separated from the second end (3412) of the guide rod (341), the pressure spring (343) stretches to enable the guide rod (341) to move in the forward direction, and the guide shaft (342) is matched with the abutting part (312) of the rotating indicating piece (31) to enable the rotating indicating piece (31) to rotate to one side to indicate a switching-on position;

when the circuit breaker (1) is opened, the movable contact component (12) is abutted 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 part (312) of the rotating indicating piece (31) to remove limit fit, and the reset elastic piece (32) drives the rotating indicating piece (31) to rotate to the other side to indicate the opening position.

6. A circuit breaker according to claim 4, wherein: mount pad (33) have and hold chamber (331), and the uncovered of holding chamber (331) one end is corresponding with the display window of circuit breaker (1), is equipped with guiding hole (334) that supply travel mechanism (34) to pass on mount pad (33) and uncovered relative other end, is equipped with on holding two relative lateral walls in chamber (331) and perforates and bar groove (332), through it makes rotation indicator (31) by the rotation assembly in mount pad (33) to assemble a connecting axle in the perforation, and bar groove (332) and mount pad (33) sliding fit are passed through at the both ends of guiding axle (342).

7. A circuit breaker according to claim 4, wherein:

the rotating indicator (31) is integrally of a polygonal annular structure, an indicating area (311) is arranged on the outer side surface of the polygonal annular structure, and closing marks and opening marks are sequentially marked on the surfaces of two continuous side edges to form the indicating area (311); the rotating indicating piece (31) is provided with a rotating installation part (314) opposite to the indicating area (311), the rotating indicating piece (31) is assembled through the rotating installation part (314) in a rotating mode, the inner side wall of the polygonal annular structure forms the abutting part (312), and the guide shaft (342) penetrates through the rotating indicating piece (31) and the abutting part (312) in a matching mode.

8. A circuit breaker according to claim 2 or 5, wherein: a limiting boss (337) matched with the rotating indicating piece (31) is arranged in the mounting seat (33) and used for limiting the rotating indicating piece (31) to rotate to the other side by the driving of the reset elastic piece (32).

9. A circuit breaker according to claim 1, wherein: the circuit breaker further comprises a microswitch (35) arranged on the mounting seat (33), and when the circuit breaker (1) is switched on or switched off, the movable contact component (12) is matched with the guide rod (341) to enable the guide rod (341) to trigger the microswitch (35) to output signals.

10. A circuit breaker according to claim 1, wherein: the remote driving circuit breaker is characterized by further comprising an electric driving module (2), wherein the electric driving module (2) is matched with a handle (11) of the circuit breaker (1) to realize the opening and closing of the remote driving circuit breaker (1).

11. A circuit breaker according to claim 6, wherein:

a guide groove and a guide protrusion for providing a guide function are arranged between the guide rod (341) and the mounting seat (33), and the guide groove and the guide protrusion are matched with each other when the guide rod (341) and the mounting seat (33) slide relatively;

the guide groove is formed in the outer portion of the installation base (33), the guide groove and the guide hole (334) are located in the same end of the installation base (33), the guide groove is formed by extending the side wall of the installation base (33) in the direction away from the opening, the guide groove comprises a first guide groove (335) and a second guide groove (336), the first guide groove (335) is formed by integrally bending one side of the installation base (33) to form a U-shaped groove, the first guide groove (335) is semi-encircled on one side of the guide hole (334), an open groove is formed in the side wall of the first guide groove (335), and the open groove serves as the second guide groove (336);

a first guide boss (3413) and a second guide boss (3414) are arranged in the middle of the guide rod (341), the first guide boss (3413) is matched and extended into a first guide groove (335) formed in the mounting seat (33), and the second guide boss (3414) is matched and extended into a second guide groove (336) formed in the mounting seat (33).

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