CN219476594U

CN219476594U - Circuit breaker position state monitoring and indicating device and circuit breaker

Info

Publication number: CN219476594U
Application number: CN202320343079.2U
Authority: CN
Inventors: 沙舟; 王超; 张刘斗; 刘刚; 钱利; 李永波
Original assignee: Zhongdian Huarui Electric Co ltd
Current assignee: Zhongdian Huarui Electric Co ltd
Priority date: 2023-02-27
Filing date: 2023-02-27
Publication date: 2023-08-04
Anticipated expiration: 2033-02-27

Abstract

The utility model discloses a circuit breaker position state monitoring and indicating device and a circuit breaker, wherein the circuit breaker is internally provided with the monitoring and indicating device, the circuit breaker comprises a switching handle, a rotating shaft and a protection control module, the switching handle is in driving connection with the rotating shaft, the monitoring and indicating device comprises a micro switch and a communication metering module, one side of the micro switch is provided with an elastic arm and a button, the button is positioned between a fixed end and a free end of the elastic arm, the free end of the elastic arm stretches into a poking groove of the rotating shaft of the circuit breaker, the free end of the elastic arm does not press the button when the free end of the elastic arm is not influenced by the thrust of the rotating shaft, the micro switch is electrically connected with the protection control module of the circuit breaker, and the communication metering module is electrically connected with the protection control module in a hot plug mode. The position state of the circuit breaker can be detected, the current and the voltage during the opening of the circuit breaker can be obtained, and the circuit breaker is not limited by space, cost and reliability.

Description

Circuit breaker position state monitoring and indicating device and circuit breaker

Technical Field

The utility model relates to the technical field of intelligent power distribution, in particular to a circuit breaker position state monitoring and indicating device and a circuit breaker.

Background

Along with the development of the internet of things and the intelligent demand of the power distribution field on intelligent terminal products, an intelligent breaker or an intelligent measurement isolating switch with functions of metering, communication, terminal temperature measurement and the like is used in a 400V power utilization system at the rear end of a transformer in the power distribution field.

The position indication devices commonly used in circuit breakers in the industry are two types:

1. and when the breaker is in a breaking state, the lower probe of the mechanical red-green indicating device is driven by a moving contact or a rotating shaft of the breaker to move upwards, so that the mechanical indicating device is driven to rotate to indicate breaking, and meanwhile, the mechanical indicating driving device enables the microswitch arranged on the mechanical indicating device to be converted from a normally open state to a normally closed state, and normally open and normally closed conversion signals are received and processed through the PCBA control module by the microswitch, and finally breaking signals are detected, stored and transmitted to the background to indicate breaking signals of the breaker.

2. The circuit breaker with the space position is provided with a reserved accessory cabin, the accessory cabin is provided with an auxiliary contact mechanism device of the circuit breaker, and the auxiliary contact of the position in the accessory cabin is driven by the change of the opening and closing position of the internal mechanism of the circuit breaker to transmit a position signal to an externally-connected receivable device.

Related functions and external dimensions of the intelligent circuit breaker are clear from technical specifications of the intelligent measuring switch, and in view of the compact space of the intelligent circuit breaker, the traditional circuit breaker state position indicating device is limited by space, cost and reliability, so that a novel position state monitoring indicating device is required to be designed to solve the current problems of the intelligent circuit breaker.

Disclosure of Invention

Therefore, the utility model provides a circuit breaker position state monitoring and indicating device and a circuit breaker so as to solve the technical problems.

In order to achieve the above object, the present utility model provides the following technical solutions:

the utility model provides a circuit breaker, which comprises a switching handle, a rotating shaft, a protection control module, a micro switch and a communication metering module, wherein the switching handle is in driving connection with the rotating shaft, an elastic arm and a button are arranged on one side of the micro switch, the button is positioned between a fixed end and a free end of the elastic arm, a poking groove is formed in the rotating shaft, the free end of the elastic arm stretches into the poking groove, the elastic arm does not press the button when the free end of the elastic arm is not influenced by the thrust of the rotating shaft, the micro switch is electrically connected with the protection control module, and the communication metering module is electrically connected with the protection control module.

Further, the circuit breaker comprises a housing and a control box, wherein the control box is arranged in the housing, and the protection control module is arranged in the control box.

Further, the circuit breaker still includes inlet wire binding post, outgoing line binding post, conducting bar and moving contact subassembly, inlet wire binding post, appearance binding post respectively with the casing is fixed mutually, the setting of static contact silver point is in inlet wire binding post be located the one end in the casing, the stiff end of moving contact subassembly with the pivot is connected, the free end of moving contact subassembly be equipped with can with the moving contact silver point of static contact silver point contact, the one end of conducting bar with the moving contact silver point is connected, the other end with outgoing line binding post is connected.

Further, one end of the opening and closing handle is rotatably arranged in the shell, the other end of the opening and closing handle extends out of the shell, the rotating shaft is rotatably arranged in the shell, the micro switch is fixed in the shell and is positioned on one side of the control box, and the communication metering module is electrically connected with the protection control module in a hot plug mode.

The utility model provides a circuit breaker position state monitoring and indicating device which is used in combination with a circuit breaker and comprises a micro switch and a communication metering module, wherein an elastic arm and a button are arranged on one side of the micro switch, the button is positioned between a fixed end and a free end of the elastic arm, the free end of the elastic arm stretches into a poking groove of a rotating shaft of the circuit breaker, the free end of the elastic arm does not press the button when the free end of the elastic arm is not acted by the thrust of the rotating shaft, the micro switch is electrically connected with a protection control module of the circuit breaker, and the communication metering module is electrically connected with the protection control module by hot plug.

The utility model has the following advantages:

the on-off of the micro switch is controlled by a rotating shaft of the circuit breaker, the rotating shaft is linked with the switching handle, when the switching handle is used for actively switching on and off and the circuit breaker is automatically switched on and off for protection, the on-off state of the micro switch is changed, a normally open signal or a normally closed signal of the micro switch is transmitted to the protection control module, the protection control module transmits the signal to the communication metering module, and the communication metering module feeds the signal back to the control center; when the breaker is protected to be opened, the protected current or voltage value is detected by the protection control module, the protection control module transmits the abnormal current and voltage signals to the communication metering module, and the communication metering module feeds the signals back to the control center; therefore, the position state of the circuit breaker can be monitored, and the current and the voltage during the protection switching-off can be monitored; because the micro switch is additionally arranged in the circuit breaker, the volume of the circuit breaker is not enlarged, and the circuit breaker can still be suitable for a limited space.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those skilled in the art from this disclosure that the drawings described below are merely exemplary and that other embodiments may be derived from the drawings provided without undue effort.

The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present utility model, should fall within the scope of the utility model.

Fig. 1 is a schematic structural diagram of a circuit breaker (including a circuit breaker position status monitoring and indicating device) according to an embodiment of the present utility model;

fig. 2 is a schematic diagram of the positional relationship of related components in the opening state of the circuit breaker (including the circuit breaker position state monitoring and indicating device) according to the embodiment of the present utility model;

fig. 3 is a schematic diagram of the positional relationship of related components in the closing state of the circuit breaker (including the circuit breaker position state monitoring and indicating device) according to the embodiment of the present utility model;

fig. 4 is a perspective view of a circuit breaker (including a circuit breaker position status monitoring and indicating device) according to an embodiment of the present utility model.

In the figure: the device comprises a 1-split handle, a 2-rotating shaft, a 21-moving contact assembly, a 22-moving contact silver point, a 3-incoming wire connecting terminal, a 31-fixed contact silver point, a 4-outgoing wire connecting terminal, a 5-conducting bar, a 6-protection control module, a 7-micro switch, a 71-elastic arm, a 72-button, an 8-communication metering module and a 9-control box.

Detailed Description

Other advantages and advantages of the present utility model will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The terms such as "upper", "lower", "left", "right", "middle" and the like are also used in the present specification for convenience of description, but are not intended to limit the scope of the present utility model, and the changes or modifications of the relative relationship thereof are considered to be within the scope of the present utility model without substantial modification of the technical content.

As shown in fig. 1 to 4, the present embodiment provides a circuit breaker position state monitoring and indicating device and a circuit breaker, the monitoring and indicating device is used in combination with the circuit breaker, and the two are described below by taking an integral body formed by combining the monitoring and indicating device with the existing circuit breaker as an example.

The switching handle 1 is fixedly arranged on a bottom shell (part of a shell) and penetrates out of the middle part of the middle shell (part of the shell), when the switching handle 1 is operated, the rotating shaft 2 arranged on the bottom shell can be driven to rotate, the moving contact assembly 21 is arranged on the rotating shaft 2, when the rotating shaft 2 is driven to a switching position by the switching handle 1, the moving contact silver point 22 of the moving contact assembly 21 can be meshed (contacted) with the fixed contact silver point 31 on the incoming line wiring terminal 3 of the circuit breaker, and the moving contact silver point 22 is connected with the outgoing line wiring terminal 4 through the conducting bar 5. A control box 9 is arranged between the bottom shell and the middle shell of the circuit breaker, and the protection control module 6 is arranged in the control box 9. The structure of the part is the conventional arrangement of the existing breaker and is not repeated.

The micro switch 7 is arranged on the side of the control box 9, an elastic arm 71 and a button 72 are arranged on one side of the micro switch 7, the button 72 is located between the fixed end and the free end of the elastic arm 71, the free end of the elastic arm 71 is suspended in a shifting groove at the right front of the rotating shaft 2, the micro switch 7 is electrically connected with the protection control module 6, when the circuit breaker is in a closing position, the rotating shaft 2 is driven by the switching handle 1 to press down the elastic arm 71 of the micro switch 7, the elastic arm 71 presses down the button 72 along with the circuit breaker, the micro switch 7 is converted into a normally-closed contact state from a normally-open contact state, and the communication metering module 8 (which is a communication module, also called a measurement control module and a measurement communication module) is installed above the protection control module 6 in a hot plug mode.

The normally open signal of the micro switch 7 is converted into a normally closed signal and then transmitted to the protection control module 6, and the protection control module 6 feeds back the signal to the communication metering module 8. When the breaker is protected to be opened, the rotating shaft 2 is driven to the opening position, the elastic arm 71 is released, and the micro switch 7 is restored to the normally open contact state; meanwhile, the protected current or voltage value is detected by the protection control module 6, a normally open contact signal of the micro switch 7 is fed back to the protection control module 6, the protection control module 6 transmits and feeds back a breaker opening position signal, an opening current and voltage abnormal signal to the measurement communication module, and the measurement communication module feeds back the signal to the control center; meanwhile, the opening and closing state of the circuit breaker can be indicated on the opening and closing handle 1, so that an opening and closing signal can be transmitted to a local operator.

The specific working principle is as follows: the switching-on and switching-off handle 1 is installed on the base shell, when the switching-on and switching-off handle 1 is pushed to be switched on through external manual operation or electric operation, the switching-on and switching-off handle 1 drives the rotating shaft 2 to rotate, the moving contact assembly 21 installed on the rotating shaft 2 rotates to a position meshed with the fixed contact silver point 31, the action of switching on the front end and the rear end of the circuit breaker is realized, the switching-on state of the circuit breaker at the moment can be indicated locally through the position of the switching-on and switching-off handle 1, and the remote control center can monitor and sense the switching-on position of the circuit breaker in the following manner: when the circuit breaker is in a closing position, the rotating position of the rotating shaft 2 drives the elastic arm 71 to press the button 72 to close a normally open contact of the micro switch 7, the normally open signal of the micro switch 7 is converted into a normally closed signal, the micro switch 7 transmits the converted signal to the communication metering module 8 through the protection control module 6, and the communication metering module 8 transmits the closing state of the circuit breaker to control monitoring equipment of a customer, such as a mobile phone APP or a control center, through wired or wireless communication; similarly, when the breaker drives the opening and closing handle 1 to enter an opening state through a manual or electric operating mechanism, the opening and closing handle 1 drives the rotating shaft 2 to reversely rotate, so that the moving contact assembly 21 is driven to rotate to be separated from the fixed contact silver point 31, the contact between the moving contact assembly and the fixed contact silver point 31 is released, the current cutting-off action at the front end and the rear end of the breaker is realized, the handle operation opening of the breaker is realized, the opening and closing state of the breaker can be judged by observing the opening and closing handle 1 state of the breaker, and the opening and closing position monitoring and indication of the remote control center are realized in the following manner: the rotating shaft 2 reversely rotates to the opening position, at this time, the rotating shaft 2 can loosen the pressure to the elastic arm 71, the elastic arm 71 rebounds to the initial position, the button 72 is not pressed down any more, the micro switch 7 converts normally closed signals into normally open signals, the conversion of the signals is transmitted to the metering communication module through the protection control module 6, the metering communication module transmits the handle operation opening state and the signals of the circuit breaker to the mobile phone APP or the control center of a client through wired or wireless signals, and the remote monitoring and the identification of the opening signals and the states of the circuit breaker are realized for the client.

When the breaker realizes protection switching-off due to overcurrent or abnormal voltage protection, the operation mechanism of the breaker acts to drive the rotating shaft 2 to realize rotation from a switching-on position to a switching-off position, the reverse rotation of the rotating shaft 2 also releases the pressing action on the elastic arm 71, the elastic arm 71 is not pressing the button 72, the microswitch 7 is switched from a normally closed state to a normally open state, and the switching of the state is transmitted to the communication metering module 8 through the protection control module 6; meanwhile, the control module senses the abnormal condition of the current and the voltage of the circuit breaker, sends an overcurrent breaking signal or an abnormal voltage breaking signal of the circuit breaker to the communication metering module 8, and the communication metering module 8 transmits the overcurrent breaking signal or the abnormal voltage breaking signal to the mobile phone APP or the control center of the customer in a wireless or wired communication mode to monitor and indicate the state of the overcurrent protection breaking of the circuit breaker or the abnormal voltage protection breaking of the circuit breaker.

While the utility model has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.

Claims

1. The utility model provides a circuit breaker, includes and divides and closes handle, pivot and protection control module, divide and close the handle with the pivot drive is connected, its characterized in that, the circuit breaker still includes micro-gap switch and communication measurement module, one side of micro-gap switch is equipped with elastic arm and button, the button is located between the stiff end and the free end of elastic arm, the pivot is equipped with dials the groove, the free end of elastic arm stretches into dial the inslot, the free end of elastic arm is when not receiving the thrust effect of pivot, the elastic arm does not push down the button, micro-gap switch with protection control module electricity is connected, communication measurement module with protection control module electricity is connected.

2. The circuit breaker of claim 1, wherein the circuit breaker comprises a housing and a control box disposed within the housing, the protection control module disposed within the control box.

3. The circuit breaker according to claim 2, further comprising an incoming wire connecting terminal, an outgoing wire connecting terminal, a conductive bar and a moving contact assembly, wherein the incoming wire connecting terminal and the outgoing wire connecting terminal are respectively fixed with the shell, a fixed contact silver point is arranged at one end of the incoming wire connecting terminal, which is positioned in the shell, the fixed end of the moving contact assembly is connected with the rotating shaft, a moving contact silver point which can be contacted with the fixed contact silver point is arranged at the free end of the moving contact assembly, one end of the conductive bar is connected with the moving contact silver point, and the other end of the conductive bar is connected with the outgoing wire connecting terminal.

4. The circuit breaker according to claim 2, wherein one end of the opening and closing handle is rotatably arranged in the housing, the other end extends out of the housing, the rotating shaft is rotatably arranged in the housing, the micro switch is fixed in the housing and positioned at one side of the control box, and the communication metering module is electrically connected with the protection control module in a hot plug manner.

5. The utility model provides a circuit breaker position state monitoring indicating device, its characterized in that uses with the circuit breaker combination, including micro-gap switch and communication measurement module, one side of micro-gap switch is equipped with elastic arm and button, the button is located between the stiff end and the free end of elastic arm, the free end of elastic arm stretches into in the groove of dialling of the pivot of circuit breaker, the free end of elastic arm is when not receiving the thrust effect of pivot, the elastic arm does not push down the button, micro-gap switch with the protection control module electricity of circuit breaker is connected, communication measurement module with the protection control module adopts hot plug electricity to be connected.