CN215527636U

CN215527636U - Circuit breaker on-off indicating device and circuit breaker

Info

Publication number: CN215527636U
Application number: CN202121823524.2U
Authority: CN
Inventors: 潘万军; 宋增强; 乔嗣健
Original assignee: Shanghai Liangxin Electrical Co Ltd
Current assignee: Shanghai Liangxin Electrical Co Ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2022-01-14
Anticipated expiration: 2031-08-05

Abstract

The application discloses circuit breaker on-off indicating device and circuit breaker relates to the electrical technology field. The circuit breaker on-off indicating device comprises a shell, and a circuit board, an on-off indicating piece, an operating handle and an electric signal indicating assembly which are arranged in the shell, wherein the circuit board is electrically connected with the electric signal indicating assembly, and the on-off indicating piece is rotationally connected with the shell; the operating handle is in a closing state, the on-off indicating piece indicates a first state, and the electric signal indicating assembly is disconnected; the operating handle is in a brake-off state, the on-off indicating piece indicates a second state, and the electric signal indicating assembly is conducted. Can instruct the state of circuit breaker through the form that mechanical indication and electric signal instruction combined together, be favorable to reducing the potential safety hazard.

Description

Circuit breaker on-off indicating device and circuit breaker

Technical Field

The application relates to the field of electrical technology, in particular to a circuit breaker on-off indicating device and a circuit breaker.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. With the continuous development of the power industry, a great deal of circuit breakers are applied, and meanwhile, stricter requirements are provided for the design and production of the circuit breakers, such as intellectualization, miniaturization, high mechanical life and the like, so that how to improve the reliability of an operating mechanism is very important.

Circuit breakers have both a closed and an open condition, which is generally determined by the display of an indicator on the mechanism. The specific realization is that the rotation of the cantilever on the mechanism rotating shaft drives the rotary motion of an indicating piece, and the state of the indicating piece is displayed through a label on the plastic piece.

The current state of the circuit breaker can be determined only according to the label on the indicating piece on the operation site in the form setting mode, and the current state of the circuit breaker cannot be known clearly in the remote control process, so that certain potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a circuit breaker break-make indicating device and circuit breaker, can instruct the state of circuit breaker through the form that combines together with the signal of telecommunication instruction of machinery, be favorable to reducing the potential safety hazard.

The embodiment of the application is realized as follows:

on one hand, the circuit board is electrically connected with the electric signal indicating assembly, and the on-off indicating member is rotatably connected with the shell; the circuit breaker is in a closing state, the on-off indicating piece indicates a first state, and the electric signal indicating assembly is disconnected; the circuit breaker is in the separating brake state, the on-off indicating piece indicates the second state, just the signal of telecommunication indicates that the subassembly switches on.

Optionally, the electrical signal indicating assembly includes a first contact, a second contact and an elastic conductive piece which are arranged on the circuit board, the operating handle is in a closing state, and the first contact and the second contact are disconnected; the operating handle is in a switching-off state, and the first contact and the second contact are conducted through the elastic conductive piece.

Optionally, the elastic conductive member includes a first elastic arm and a second elastic arm connected to each other, where the first elastic arm is connected to the first contact, and the second elastic arm abuts against the second contact, or the second elastic arm is driven to separate from the second contact.

Optionally, the on-off indicator includes a rotating portion rotatably connected to the housing, and a first connecting arm, a second connecting arm and an indicating arm disposed on the rotating portion, the first connecting arm is connected to the operating handle to drive the rotating portion to rotate, the second connecting arm is connected to the second elastic arm to control the second elastic arm to be disconnected or connected to the second contact, and the indicating arm is used for indicating the first state and the second state.

Optionally, the on-off indicator includes a rotating portion rotatably connected to the housing, and a connecting portion, a supporting portion and an indicating arm disposed on the rotating portion, the connecting portion is connected to an operating mechanism disposed in the housing to drive the rotating portion to rotate, the supporting portion is connected to the second elastic arm to control the second elastic arm to be disconnected from or connected to the second contact, and the indicating arm is configured to indicate the first state and the second state.

Optionally, the indication arm comprises a swing arm connected with the rotating portion and a sign arranged at one end of the swing arm far away from the rotating portion, and a first display area and a second display area are arranged on the sign.

Optionally, an indicator light is further disposed on the circuit board, and the indicator light is electrically connected with the electrical signal indicating assembly.

Optionally, a signal port is further disposed on the circuit board, and the signal port is electrically connected to the electrical signal indicating assembly.

Optionally, the first contact and the second contact are PIN PINs or conductive posts.

In another aspect of the embodiments of the present application, there is provided a circuit breaker, including the circuit breaker on-off indicating device as described in any one of the above.

The beneficial effects of the embodiment of the application include:

the circuit breaker break-make indicating device that this application embodiment provided, through circuit board and the signal of telecommunication indicating subassembly of setting in the casing, and the circuit board is connected with the signal of telecommunication indicating subassembly electricity, at the in-process of remote control circuit breaker, when the circuit breaker is in the combined floodgate state, drives signal of telecommunication indicating subassembly and break-make indicator synchronization action to make the break-make indicator instruct first state, and the signal of telecommunication indicating subassembly disconnection. When the circuit breaker is in the opening state, the circuit breaker drives the electric signal indicating assembly and the on-off indicating piece to synchronously act again, so that the on-off indicating piece indicates the second state, and the electric signal indicating assembly is switched on. By adopting the above form, when the remote control circuit breaker acts, the current state of the circuit breaker can be definitely known, and the current state of the circuit breaker can be determined by personnel operating on the spot according to the on-off indicating piece.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a circuit breaker on-off indicating device according to an embodiment of the present disclosure;

fig. 2 is a second schematic structural diagram of the circuit breaker on-off indicating device according to the embodiment of the present application;

fig. 3 is a third schematic structural diagram of the circuit breaker on-off indicating device according to the embodiment of the present application;

fig. 4 is a fourth schematic structural diagram of the circuit breaker on-off indicating device provided in the embodiment of the present application;

fig. 5 is a schematic structural diagram of the electrical signal indicating assembly and the on-off indicator provided in the embodiment of the present application.

Icon: 100-circuit breaker on-off indicating device; 110-a circuit board; 130-on-off indicator; 132-a rotating part; 133-a connecting portion; 134-first connecting arm; 135-a holding portion; 136-a second connecting arm; 138-an indicator arm; 1382-swing arm; 1384-signs; 140-operating handle; 150-an electrical signal indicating component; 151-first contact; 152-a second contact; 153-elastic conductive member; 1532-a first resilient arm; 1534-a second resilient arm; 160-an operating mechanism; 170-indicator light; 180-signal port.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Circuit breakers have both a closed and an open condition, which is generally determined by the display of an indicator on the mechanism. The specific realization is that the rotation of the cantilever on the mechanism rotating shaft drives the rotation of a plastic piece, and the state of the plastic piece is displayed through the label on the plastic piece. The current state of the circuit breaker can be determined only according to the label on the plastic part on the operation site in the form of the setting mode, and the current state of the circuit breaker cannot be known clearly in the remote control process, so that certain potential safety hazards exist. The embodiment of the application provides following scheme, can indicate the state of circuit breaker through the form that mechanical indication and electric signal indication combined together, be favorable to reducing the potential safety hazard.

Referring to fig. 1, the present embodiment provides a circuit breaker on-off indicating device 100, which includes a housing, and a circuit board 110, an on-off indicating member 130, an operating handle 140 and an electrical signal indicating assembly 150, which are disposed in the housing, wherein the circuit board 110 is electrically connected to the electrical signal indicating assembly 150, and the on-off indicating member 130 is rotatably connected to the housing; the circuit breaker is in a closing state, the on-off indicator 130 indicates a first state, and the electrical signal indicates that the assembly 150 is off; the circuit breaker is in the open state, the on-off indicator 130 indicates the second state, and the electrical signal indicating assembly 150 is on.

Specifically, through the circuit board 110 and the electrical signal indicating component 150 arranged in the housing, the electrical signal indicating component 150 is matched with the operating handle 140, when the operating handle 140 is in a closing state, the electrical signal indicating component 150 is disconnected, the operating handle 140 is in a opening state, and the electrical signal indicating component 150 is connected. In this manner, when a connection is made between the remote terminal device and the circuit breaker, the current state of the circuit breaker can be determined based on the on or off of the electrical signal indicating assembly 150. Meanwhile, the circuit breaker is in a closing state, the on-off indicating piece 130 indicates the first state, the circuit breaker is in an opening state, and the on-off indicating piece 130 indicates the second state, so that an operator on site can determine the current state of the circuit breaker according to the on-off indicating piece 130.

In addition, when the electrical signal indicating component 150 and the on-off indicating member 130 switch different states, the electrical signal indicating component can be connected to the operating handle 140 respectively, or the electrical signal indicating component 150 can be connected to the operating handle 140 through the on-off indicating member 130, as long as the mechanical indication and the electrical signal indication can be simultaneously performed. The power supply required by the electrical signal indicating assembly 150 is provided by the circuit board 110, wherein when the circuit board 110 takes power, the power can be taken directly from an external independent power supply, such as an electric control cabinet for installing a circuit breaker. When the independent power supply is used for taking electricity, the influence of the power-on and power-off of the circuit breaker is avoided, and the reliability of a judgment result is guaranteed. The power can be directly obtained from a connecting circuit in the circuit breaker so as to simplify the connection form, and the purpose of supplying power to the electric signal indicating assembly 150 can be achieved by adopting the two power obtaining forms.

The circuit breaker on-off indicating device 100 provided by the embodiment of the application is characterized in that the circuit board 110 and the electric signal indicating assembly 150 are arranged in the shell, the circuit board 110 is electrically connected with the electric signal indicating assembly 150, and in the process of remotely controlling the circuit breaker, when the circuit breaker is in a closing state, the electric signal indicating assembly 150 and the on-off indicating piece 130 are driven to synchronously act, so that the on-off indicating piece 130 indicates a first state, and the electric signal indicating assembly 150 is disconnected. When the circuit breaker is in the open state, the circuit breaker drives the electrical signal indicating component 150 and the on-off indicating member 130 to synchronously act again, so that the on-off indicating member 130 indicates the second state, and the electrical signal indicating component 150 is switched on. By adopting the above form, when the circuit breaker is remotely controlled to act, the current state of the circuit breaker can be definitely known, and the personnel operating on the site can also determine the current state of the circuit breaker according to the on-off indicating piece 130, so that the state of the circuit breaker can be indicated by the form of combining mechanical indication and electric signal indication, misoperation can be favorably reduced, and potential safety hazards can be reduced.

As shown in fig. 1 and 2, the electrical signal indicating assembly 150 includes a first contact 151, a second contact 152 and a resilient conductive member 153 disposed on the circuit board 110, the operating handle 140 is in a closed state, and the first contact 151 and the second contact 152 are disconnected; the operating handle 140 is in the open state, and the first contact 151 and the second contact 152 are conducted through the elastic conductive member 153.

Specifically, the connection form of the elastic conductive element 153 is not limited in the embodiment of the present application, for example, the elastic conductive element 153 may be connected to the circuit board 110, or may be connected to the housing, so as to ensure the certainty of the action form of the elastic conductive element 153. In addition, the elastic conductive member 153 is affected by the operating handle 140, and when the operating handle 140 is operated, the elastic conductive member 153 is driven to operate, so that the operating handle 140 is in a closing state, the first contact 151 and the second contact 152 are disconnected, the operating handle 140 is in an opening state, and the first contact 151 and the second contact 152 are connected through the elastic conductive member 153. Therefore, the elastic conductive member 153 can be driven by the operating handle 140 to operate, so as to achieve the purpose of controlling the on/off of the circuit switching assembly. It can be understood that, according to actual requirements, the operating handle 140 may be in a closing state, the first contact 151 and the second contact 152 are conducted through the elastic conductive member 153, the operating handle 140 is in an opening state, and the first contact 151 and the second contact 152 are disconnected, so that the purpose of determining the state of the circuit breaker may be also achieved.

Optionally, the elastic conductive member 153 includes a first elastic arm 1532 and a second elastic arm 1534 connected to each other, wherein the first elastic arm 1532 is connected to the first contact 151, the second elastic arm 1534 abuts against the second contact 152, or the second elastic arm 1534 is driven to separate from the second contact 152.

Specifically, in the embodiment of the present application, the arrangement form of the elastic conductive element 153 is not specifically limited, for example, the elastic conductive element 153 may be a spring plate, and may also be a torsion spring, when the elastic conductive element 153 is the spring plate, the first elastic arm 1532 and the second elastic arm 1534 of the elastic conductive element 153 may be connected through a bending portion, and the bending portion is embedded in a limiting groove arranged in the housing, so that the first elastic arm 1532 abuts against the first contact 151, and the second elastic arm 1534 abuts against the second contact 152. When the elastic conductive member 153 is a torsion spring, the first elastic arm 1532 and the second elastic arm 1534 of the elastic conductive member 153 can be connected by the torsion portion, and the torsion portion is disposed on the limiting shaft disposed in the housing, so that the first elastic arm 1532 abuts against the first contact 151, and the second elastic arm 1534 abuts against the second contact 152. Thus, when the operating handle 140 is operated, the second elastic arm 1534 is engaged with the operating handle 140 or the on/off indicator 130 and can be driven to be separated from the second contact 152. When no force is applied to the second elastic arm 1534, the second elastic arm 1534 returns to the state of abutting against the second contact 152. Since the first elastic arm 1532 does not need to have the first contact separated from the second contact, the first elastic arm 1532 can also be directly and fixedly connected to the first contact (e.g., soldered). In addition, the elastic conductive member 153 may be formed integrally to ensure good conduction performance when communicating the first contact 151 and the second contact 152.

As shown in fig. 1 and 2, the on-off indicator 130 includes a rotating portion 132 rotatably connected to the housing, and a first connecting arm 134, a second connecting arm 136 and an indicating arm 138 disposed on the rotating portion 132, the first connecting arm 134 is connected to the operating handle 140 to rotate the rotating portion 132, the second connecting arm 136 is connected to the second elastic arm 1534 to control the second elastic arm 1534 to be disconnected from or connected to the second contact 152, and the indicating arm 138 is used for indicating the first state and the second state.

Specifically, the on-off indicating member 130 is rotatably connected to the housing through the rotating portion 132, and when the elastic conductive member 153 is a torsion spring, the torsion portion of the torsion spring and the rotating portion 132 of the on-off indicating member 130 can be coaxially disposed, so as to save space. When the on-off indicating member 130 is used for transmission, the first connecting arm 134 of the on-off indicating member 130 is matched with the operating handle 140, when the operating handle 140 is in the opening state, the second elastic arm 1534 abuts against the second contact 152, the second elastic arm 1534 is limited by the abutting force of the second contact 152, and cannot drive the second connecting arm 136 to continue rotating, and the on-off indicating member 130 is no longer subjected to the acting force of the elastic conductive member 153, so that the indicating arm 138 stably indicates the second state. The second connecting arm 136 may be provided with a protrusion, and the second elastic arm 1534 may abut against the second connecting arm 136 through the protrusion.

When the operating handle 140 moves from the opening state to the closing state, the operating handle 140 abuts against the first connecting arm 134 and drives the first connecting arm 134 to rotate clockwise, and during the operation of the first connecting arm 134, the rotating portion 132 drives the second connecting arm 136 to rotate synchronously, and because the second elastic arm 1534 abuts against the second connecting arm 136, during the operation of the second connecting arm 136, the elastic potential energy at the second connecting arm 136 is overcome and the second elastic arm 1534 is driven to move, so that the second elastic arm 1534 is separated from the second contact 152, and the indicating arm 138 indicates the first state.

It should be noted that, in the embodiment of the present application, the lengths of the first elastic arm 1532, the second elastic arm 1534, the first connection arm 134, and the second connection arm 136 are not particularly limited, and in particular, the lengths of the first elastic arm 1532 and the second elastic arm 1534 may be flexibly set according to the setting positions of the first contact 151 and the second contact 152 as long as stable contact can be ensured. The lengths of the first and

second connection arms

134 and 136 may be determined according to the position where the rotating part 132 is rotatably connected to the housing, the distance from the operating handle 140, and the position where the second elastic arm 1534 is engaged, so as to ensure a stable transmission connection.

As shown in fig. 3, 4 and 5, in an alternative embodiment of the present application, the on-off indicator 130 includes a rotating portion 132 rotatably connected to the housing, and a connecting portion 133, a holding portion 135 and an indicating arm 138 disposed on the rotating portion 132, the connecting portion 133 is connected to an operating mechanism 160 disposed in the housing to drive the rotating portion 132 to rotate, the holding portion 135 is connected to the second elastic arm 1534 to control the second elastic arm 1534 to be disconnected from or connected to the second contact 152, and the indicating arm 138 is used for indicating the first state and the second state.

Specifically, in the above manner, the force required by the rotation of the rotating portion 132 is directly provided by the operating mechanism 160, during operation, the operating handle 140 controls the operating mechanism 160 to operate, so as to achieve opening or closing of the circuit breaker, during the process that the operating handle 140 drives the operating mechanism 160 to close, the operating mechanism 160 drives the connecting portion 133 to move, during the operation of the connecting portion 133, the rotating portion 132 drives the abutting portion 135 to rotate synchronously, because the second elastic arm 1534 abuts against the abutting portion 135, during the operation of the abutting portion 135, the elastic potential energy at the abutting portion 135 can be overcome, and the second elastic arm 1534 is driven to move, so as to separate the second elastic arm 1534 from the second contact 152, and enable the indicating arm 138 to indicate the first state. When the operating handle 140 drives the operating mechanism 160 to open the brake, the operating mechanism 160 drives the connecting portion 133 to move in a reverse direction, and during the operation of the connecting portion 133, the rotating portion 132 drives the abutting portion 135 to rotate synchronously, so as to release the abutting force with the second elastic arm 1534, and enable the indicating arm 138 to indicate the second state, and the second elastic arm 1534 recovers the elastic deformation process, so as to enable the second elastic arm 1534 to abut against the second contact 152.

As shown in fig. 5, the indicating arm 138 includes a swing arm 1382 connected to the rotating portion 132, and an indicator 1384 disposed at an end of the swing arm 1382 remote from the rotating portion 132, the indicator 1384 having a first display region and a second display region disposed thereon.

Specifically, with the above configuration, when the rotating portion 132 rotates, the indicating arm 138 is driven to rotate synchronously, the housing is provided with a window corresponding to the indicating arm 138, and the swing arm 1382 rotates at different angles, so that the first display region or the second display region on the indicating plate 1384 can correspond to the window. The first display area is used for indicating a first state, and the second display area is used for indicating a second state. The first display area and the second display area can be marked with different colors (such as red and green) so as to better distinguish different states of the circuit breaker.

As shown in fig. 3, an indicator light 170 is further disposed on the circuit board 110, and the indicator light 170 is electrically connected to the electrical signal indicating assembly 150. Thus, when the electrical signal indicating assembly 150 is turned on, the indicator lamp 170 is turned on, and when the electrical signal indicating assembly 150 is turned off, the indicator lamp 170 is turned off, so that a field operator can determine the current state of the circuit breaker according to the state of the indicator lamp 170.

As shown in fig. 4, the circuit board 110 is further provided with a signal port 180, and the signal port 180 is electrically connected to the electrical signal indicating assembly 150. In this manner, the circuit breaker may be electrically connected to a remote terminal through a signal port 180 provided on the circuit board 110. In practical application, the signal port 180 can be connected with a control module of a power distribution cabinet or a power distribution box provided with a circuit breaker, and the connection with a remote terminal is realized through a communication module configured in the power distribution cabinet or the power distribution box. Therefore, the state of the circuit on-off component can be known, so that the remote operation is more clear, and misoperation is avoided. The signal port 180 includes a power interface and a signal interface, which are electrically connected to the circuit board 110 through pins, respectively. Thus, the signal port 180 can not only realize the required communication connection, but also supply power to the circuit board 110 by means of an external power supply, which is beneficial to ensuring the stability of the circuit breaker on-off indicating device 100 during use.

In alternative embodiments of the present application, the first contact 151 and the second contact 152 are PIN PINs or conductive posts. In this way, the connection form can be simplified, and the structural stability of the first contact 151 and the second contact 152 can be ensured, which is beneficial to ensure the stable connection of the electrical signal indicating assembly 150.

The embodiment of the application also discloses a circuit breaker, which comprises the circuit breaker on-off indicating device 100 in the embodiment. The circuit breaker comprises the same structure and beneficial effects as the circuit breaker on-off indicating device 100 in the previous embodiment. The structure and the advantages of the circuit breaker on-off indicating device 100 have been described in detail in the foregoing embodiments, and are not described again here.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The circuit breaker on-off indicating device is characterized by comprising a shell, and a circuit board, an on-off indicating piece, an operating handle and an electric signal indicating assembly which are arranged in the shell, wherein the circuit board is electrically connected with the electric signal indicating assembly, and the on-off indicating piece is rotatably connected with the shell; the circuit breaker is in a closing state, the on-off indicating piece indicates a first state, and the electric signal indicating assembly is disconnected; the circuit breaker is in the separating brake state, the on-off indicating piece indicates the second state, just the signal of telecommunication indicates that the subassembly switches on.

2. The on-off indicating device for the circuit breaker according to claim 1, wherein the electrical signal indicating assembly comprises a first contact, a second contact and an elastic conductive piece which are arranged on a circuit board, the operating handle is in a closing state, and the first contact and the second contact are disconnected; the operating handle is in a switching-off state, and the first contact and the second contact are conducted through the elastic conductive piece.

3. The on-off indicating device for the circuit breaker according to claim 2, wherein the elastic conductive member comprises a first elastic arm and a second elastic arm which are connected with each other, wherein the first elastic arm is connected with the first contact, and the second elastic arm is abutted against the second contact, or the second elastic arm is driven to be separated from the second contact.

4. The on-off indicating device for the circuit breaker according to claim 3, wherein the on-off indicating member comprises a rotating portion rotatably connected to the housing, and a first connecting arm, a second connecting arm and an indicating arm which are arranged on the rotating portion, the first connecting arm is connected to the operating handle to drive the rotating portion to rotate, the second connecting arm is connected to the second elastic arm to control the second elastic arm to be disconnected from or connected to the second contact, and the indicating arm is used for indicating the first state and the second state.

5. The on-off indicating device of the circuit breaker according to claim 3, wherein the on-off indicating member comprises a rotating portion rotatably connected with the housing, and a connecting portion, a supporting portion and an indicating arm which are arranged on the rotating portion, the connecting portion is connected with an operating mechanism arranged in the housing to drive the rotating portion to rotate, the supporting portion is connected with the second elastic arm to control the second elastic arm to be disconnected or connected with the second contact, and the indicating arm is used for indicating the first state and the second state.

6. The on-off indicating device for the circuit breaker according to claim 4 or 5, wherein the indicating arm comprises a swing arm connected with the rotating part and a sign board arranged at one end of the swing arm far away from the rotating part, and a first display area and a second display area are arranged on the sign board.

7. The circuit breaker on-off indicating device according to any one of claims 1 to 5, characterized in that an indicator light is further arranged on the circuit board, and the indicator light is electrically connected with the electric signal indicating component.

8. The on-off indicating device for the circuit breaker according to any one of claims 1 to 5, wherein a signal port is further arranged on the circuit board, and the signal port is electrically connected with the electric signal indicating component.

9. The circuit breaker on-off indicating device of any one of claims 2-5, wherein the first contact and the second contact are PIN PINs or conductive posts.

10. A circuit breaker comprising a circuit breaker make-and-break indicator apparatus as claimed in any one of claims 1 to 9.