CN103681141B - A kind of circuit breaker more changer controller stand-by protection module installation structure - Google Patents

Abstract

A circuit breaker replacement controller protection module installation structure, which includes a circuit breaker (1), characterized in that: the controller base (2) of the circuit breaker (1) is provided with a signal switching device (3), the signal switching The device (3) can switch the protection function control signal of the circuit breaker (1) between the controller (4) and the backup protection module (5). The invention provides a circuit breaker replacement controller protection module installation structure, which can protect the circuit breaker when the controller is replaced. Once a short circuit occurs in the power distribution line, the backup protection module immediately sends an opening signal to the circuit breaker to break the circuit. The circuit breaker is disconnected, which avoids the phenomenon of circuit breaker burning out, and improves the safety of circuit breaker replacement controller.

Description

A circuit breaker replacement controller backup protection module installation structure

technical field

The invention belongs to the technical field of circuit breakers, and specifically relates to a circuit breaker replacement controller protection module installation structure, which is used to protect the circuit breaker when the main circuit of the circuit is powered off and the circuit breaker replacement controller is operated. Trip the circuit breaker in the event of a short-circuit fault, enhancing safety.

Background technique

Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. Low-voltage circuit breaker, also known as automatic switch, commonly known as "air switch", also refers to low-voltage circuit breaker. It is an electrical appliance that not only has the function of manual switch, but also can automatically protect against voltage loss, undervoltage, overload, and short circuit. It can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, etc., and can automatically cut off the circuit when they have severe overload, short circuit and undervoltage faults. Its function is equivalent to a fuse switch and The combination of overheating and underheating relays, etc., and generally does not need to change parts after breaking the fault current, has been widely used.

The controller is an important electronic component of the circuit breaker, which is used to control the opening and closing of the key functional components of the circuit breaker. After the current circuit breaker controller is used for a period of time, due to the aging of electronic components In normal use, the controller needs to be maintained and replaced in time. At present, when the circuit breaker controller is replaced and maintained, although the main circuit power failure can be avoided when the controller is replaced, the circuit breaker is in an unprotected state during the replacement operation. Short circuit occurs in the electric line, the circuit breaker will burn out, and sometimes even a safety accident occurs. Therefore, the traditional process of replacing the circuit breaker controller has potential safety hazards.

Contents of the invention

The purpose of the present invention is to provide a circuit breaker for the existing circuit breaker in the process of replacing the controller, the circuit breaker is in an unprotected state, and once the distribution line is disconnected, the circuit breaker will burn out or even cause a safety accident. Replacing the installation structure of the controller protection module can protect the circuit breaker when the controller is replaced. Once a short circuit occurs in the distribution line, the protection module will issue a command to open the circuit breaker, which avoids the occurrence of circuit breaker burnout and improves the safety of the circuit breaker. Circuit breaker replacement controller for safety.

Technical solutions

In order to achieve the above technical purpose, the present invention designs a circuit breaker replacement controller protection module installation structure, which includes a circuit breaker, and is characterized in that: a signal switching device is provided in the controller base of the circuit breaker, and the signal switching device can switch The control signal of the protection function of the circuit breaker is switched between the controller and the backup protection module.

Further, the controller base is provided with a backup protection module input socket, the signal switching device is installed in the controller base, the controller is installed on the controller base, when the controller is installed on the controller base, the signal switching device makes The control circuit is connected with the controller, and when the controller is removed from the controller base, the signal switching device automatically disconnects the control circuit from the controller, and at the same time connects the control circuit with the backup protection module.

Further, the backup protection module input socket protrudes from the controller base to the circuit breaker mask, and the piston is mounted on the protection module input socket.

Further, the backup protection module includes a base, the shell is installed on the base to form a box body, the integrated circuit board is installed in the box body, the integrated circuit board is powered by a DC power supply module, the DC power supply module is installed in the box body, and the integrated circuit board is connected with The connector plug and the integrated circuit board are controlled by the switch, and the power status of the DC power module is displayed by the power indicator light. The switch and the power indicator light are installed on the outer surface of the box, and the connector plug extends out of the box body.

Further, the signal switching device includes a mounting plate, the control signal input terminal and the backup protection module signal input terminal are respectively installed on both sides of the mounting plate, the switching switch is installed on the mounting plate, and the switching switch contacts can respectively connect the control lines to the controller or spare protection modules.

Beneficial effect

The invention provides a circuit breaker replacement controller protection module installation structure, which can protect the circuit breaker when the controller is replaced. Once a short circuit occurs in the distribution line, the backup protection module will issue a circuit breaker opening command to avoid circuit breaker The occurrence of breaker burnout improves the safety of replacing the controller of the circuit breaker.

Description of drawings

Accompanying drawing 1 is a structural representation of the present invention.

Accompanying drawing 2 is the installation drawing of controller base in the present invention.

Accompanying drawing 3 is the schematic diagram of the structure of the controller base in the present invention.

Accompanying drawing 4 is the schematic diagram of the structure in which the controller is installed on the controller base in the present invention.

Accompanying drawing 5 is the structural diagram of the state that the controller is removed from the controller base in the present invention.

Accompanying drawing 6 is the product diagram of spare backup module in the present invention.

Accompanying drawing 7 is the schematic diagram of the structure of the standby backup module in the present invention.

Accompanying drawing 8 is the structural diagram of the signal switching device of the present invention.

Accompanying drawing 9 is the working principle diagram of the present invention.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Example

As shown in Figures 1 to 8, a circuit breaker replacement controller protection module installation structure, which includes a circuit breaker 1, is characterized in that: the controller base 2 of the circuit breaker 1 is provided with a signal switching device 3, the signal The switching device 3 can switch the protection function control signal of the circuit breaker 1 between the controller 4 and the backup protection module 5 .

Further, the controller base 2 is provided with a spare protection module input socket 6, the signal switching device 3 is installed in the controller base 2, the controller 4 is installed on the controller base 2, when the controller 4 is installed on the controller base 2, the signal switching device 3 connects the control line to the controller 4. When the controller 4 is removed from the controller base 2, the signal switching device 3 automatically disconnects the control line from the controller 4, and at the same time makes the control line It communicates with the backup protection module 5 .

Further, the input socket 6 of the standby protection module protrudes from the cover of the circuit breaker 1 from the controller base 2 , and the piston 7 is mounted on the input socket 6 of the protection module.

Further, the backup protection module 5 includes a base 501, and the housing 502 is installed on the base 501 to form a box body 8, the integrated circuit board 9 is installed in the box body 8, the integrated circuit board 9 is powered by the DC power supply module 10, and the DC power supply module 10 is installed in the box body 8, the integrated circuit board 9 is connected with a connector plug 11, the integrated circuit board 9 is controlled by the switch 12, the power status of the DC power supply module 10 is displayed by the power indicator 13, the switch 12 and the power indicator 13 are installed in the On the outer surface of the box body 8 , the connector plug 11 extends out of the box body 8 .

Further, the signal switching device 3 includes a mounting plate 301, the control signal input terminal 302 and the backup protection module signal input terminal 303 are respectively installed on both sides of the mounting plate 301, the switch 304 is mounted on the mounting plate 301, and the switch contacts can be The control lines are respectively connected to the controller 4 or the backup protection module 5 .

As shown in Figure 9, the working process of the present invention is: when the controller needs to be replaced, the piston 7 on the circuit breaker 1 is removed, and the connector plug 11 on the spare protection module 5 is inserted into the controller base exposed outside the circuit breaker 1 The backup protection module input socket 6 on 2, and then turn on the switch 12, check whether the power indicator 13 is always on, if "Yes", go to the next step, if "No", replace the DC power module 10, and then confirm the power indicator After the light 13 is always on, enter the next step of operation. When the controller installed on the circuit breaker 1 is taken out, due to the loss of the pressure of the controller bottom plate, the switch 304 on the signal switching device 3 on the controller base 2 operates, and the protection function signal and action command are controlled by the controller. The signal input terminal 302 is switched to the signal input terminal 303 of the backup protection module, that is, the backup protection module 5 replaces the protection function of the controller. At this time, if a short-circuit fault occurs in the control line, the backup protection module 5 will immediately release the signal to make the controller mechanism act and open the circuit. After the new controller is installed, the controller base plate makes the switch 304 on the signal switching device 3 act, and at the same time the new controller is connected to other lines of the controller base 2, and the protection function is automatically provided by the backup protection module 5 Switch back to the new controller. After the new controller works normally, remove the backup protection module 5, and put the piston 7 back into the circuit breaker. At this time, the replacement of the controller is completed.

The invention provides a circuit breaker replacement controller protection module installation structure, which can protect the circuit breaker when the controller is replaced. Once a short circuit occurs in the distribution line, the backup protection module will issue a circuit breaker opening command to avoid circuit breaker The occurrence of breaker burnout improves the safety of replacing the controller of the circuit breaker.

Claims (4)

1. a circuit breaker more changer controller protection module mounting structure, it comprises circuit breaker (1), it is characterized in that: be provided with signal switching apparatus (3) in the controller base (2) of described circuit breaker (1), the defencive function control signal of circuit breaker (1) can switch by signal switching apparatus (3) between controller (4) and stand-by protection module (5);

Described controller base (2) is provided with stand-by protection module input socket (6), signal switching apparatus (3) is contained in controller base (2), controller (4) is arranged on controller base (2), when controller (4) is contained on controller base (2), signal switching apparatus (3) makes control circuit be connected with controller (4), when controller (4) takes off from controller base (2), signal switching apparatus (3) makes control circuit and controller (4) disconnect automatically, make control circuit be communicated with stand-by protection module (5) simultaneously.

2. a kind of circuit breaker as claimed in claim 1 more changer controller protection module mounting structure; it is characterized in that: described stand-by protection module input socket (6) stretches out circuit breaker (1) face shield from controller base (2), and piston (7) is contained on protection module input socket (6).

3. a kind of circuit breaker as claimed in claim 1 more changer controller protection module mounting structure, it is characterized in that: described stand-by protection module (5) comprises base (501), shell (502) is contained in the upper composition box body (8) of base (501), integrated circuit board (9) is contained in box body (8), integrated circuit board (9) is powered by DC power supplier (10), DC power supplier (10) is contained in box body (8), integrated circuit board (9) is connected with connector plug (11), integrated circuit board (9) controls by switch (12), DC power supplier (10) electrical condition is by power supply indicator (13) display, switch (12) and power supply indicator (13) are contained in box body (8) outer surface, connector plug (11) stretches out box body (8).

4. a kind of circuit breaker as claimed in claim 1 more changer controller protection module mounting structure; it is characterized in that: described signal switching apparatus (3) comprises mounting panel (301); control signal input (302) and stand-by protection module by signal input (303) are arranged on mounting panel (301) both sides respectively; diverter switch (304) is contained on mounting panel (301), and diverter switch contact can make control circuit be communicated with controller (4) or stand-by protection module (5) respectively.