CN-224232624-U - Temperature control device for circuit breaker

CN224232624UCN 224232624 UCN224232624 UCN 224232624UCN-224232624-U

Abstract

The utility model discloses a temperature control device for a circuit breaker, which comprises a temperature sensor, a controller and an electromagnet shunt tripping module, wherein the temperature sensor and the electromagnet shunt tripping module are connected with the controller, the temperature sensor is arranged on a cable controlled by the circuit breaker and is used for collecting the temperature of the cable and the cable joint and transmitting temperature information to the controller for processing, the electromagnet shunt tripping module is arranged on the circuit breaker and is used for controlling the circuit breaker to trip, the controller controls the electromagnet shunt tripping module to work or not, tripping is controlled by utilizing temperature detection and is an effective cable protection means, the risk of cable line faults can be greatly reduced by timely finding and processing abnormal conditions by monitoring the temperature of the cable, the safe and stable operation of a power system is ensured, and the automatic tripping mechanism can effectively prevent the faults such as short circuit and overload of the cable and protect the safe and stable operation of the power system.

Inventors

XIE JIANMING
WANG JING
DENG BIN
Fang Erwei
WANG ZHENYU
LU ZHENGMAO

Assignees

江苏连徐高速公路有限公司

Dates

Publication Date: 20260512
Application Date: 20250123

Claims (7)

1. The temperature control device for the circuit breaker is characterized by comprising a temperature sensor, a controller and an electromagnet shunt tripping module, wherein the temperature sensor and the electromagnet shunt tripping module are connected with the controller, the temperature sensor is arranged on a cable controlled by the circuit breaker and used for collecting the temperature of the cable and the cable joint and transmitting temperature information to the controller for processing, the electromagnet shunt tripping module is arranged on the circuit breaker and used for controlling the circuit breaker to trip, and the controller controls whether the electromagnet shunt tripping module works or not; The controller comprises a central processor module, a temperature setting module, a display module and a shunt tripping driving circuit, wherein the temperature setting module, the display module and the shunt tripping driving circuit are connected with the central processor module, the display module is used for displaying information of the central processor module, the temperature setting module is used for adjusting temperature parameters in the central processor module, and the shunt tripping driving circuit is used for driving the electromagnet shunt tripping module to work; The controller is also provided with a power supply module which supplies power to the whole controller; The shunt tripping driving circuit comprises a resistor R1, a resistor R2, a relay module RL1 and a triode Q1, wherein the b pole of the triode Q1 is connected with the central processing unit module through the resistor R1, the c pole of the triode Q1 is connected with the negative electrode of the power supply through a coil of the relay module RL1, the e pole of the triode Q1 is grounded, one end of the electromagnet shunt tripping module is connected with the e pole of the triode Q1, and the other end of the electromagnet shunt tripping module is connected with the negative electrode of the power supply through a normally open contact of the resistor R2 and the relay module RL 1.
2. The temperature control device for a circuit breaker of claim 1, wherein the cable connector comprises an intermediate connector and a terminal connector.
3. A temperature control device for a circuit breaker according to claim 1, characterized in that the controller is provided with a plastic housing.
4. The temperature control device for a circuit breaker of claim 1, further comprising an alarm module connected to the central processing unit module, wherein the alarm module is controlled to alarm by the central processing unit module.
5. The temperature control device for a circuit breaker according to claim 4, wherein the alarm module comprises a resistor R3, a triode Q2 and a driving peripheral buzzer alarm module, one end of the resistor R3 is connected with the central processing unit module, the other end of the resistor R3 is connected with the b pole of the triode Q2, the e pole of the triode Q2 is grounded, and the c pole of the triode Q2 is connected with the negative pole of the power supply through the driving peripheral buzzer alarm module.
6. The temperature control device for the circuit breaker according to claim 1, wherein three adjusting buttons are arranged in the temperature setting module, one ends of the three adjusting buttons are connected with a negative electrode of a power supply, and the other ends of the three adjusting buttons are respectively connected with the central processing unit module.
7. The temperature control device for a circuit breaker of claim 1, further comprising a mounting block mated with the electromagnet shunt trip module, the mounting block mounted at a switch trip of the circuit breaker.

Description

Temperature control device for circuit breaker Technical Field The utility model relates to a temperature control device, in particular to a temperature control device for a circuit breaker. Background The existing highway cable line, in particular to long-distance power supply, such as an information board, a monitoring device, an ETC portal frame and the like, is long in laying distance and is easy to be influenced by factors such as humidity, corrosion, damage caused by partial construction and the like, particularly at a cable joint, wherein an intermediate joint is used for connecting two cables, the problems of loose joint, unstable contact and the like are easy to occur, the intermediate joint is overheated, the cables are damaged or fire is caused, the safety performance of the cable line is influenced, and a terminal joint is used for connecting a breaker with the cables, but the problem of loose joint or corrosion along with the use time is easy to occur when the terminal joint is installed, and the problem of easy overheating of the connection position of the terminal joint and a relay is easy to cause the cable to be damaged or fire and the safety performance of the cable line is influenced. However, some conventional circuit breakers have a function of high-temperature detection, but detect the inside of the circuit breaker, and do not detect the positions of the intermediate connector and the terminal connector, so that the requirements cannot be satisfied. Disclosure of utility model In view of the above problems in the prior art, the present utility model provides a temperature control device for a circuit breaker, which collects temperature data through temperature sensors installed around a cable and a cable connector, and transmits the data to a controller through signal transmission, when the temperature of the cable exceeds a preset safety threshold in the controller, an alarm module will give an alarm, and trigger an electromagnet shunt tripping module to trip the circuit breaker, thereby cutting off a power supply, preventing damage or fire caused by overheating of the cable, and solving the problems. In order to achieve the aim, the temperature control device for the circuit breaker comprises a temperature sensor, a controller and an electromagnet shunt tripping module, wherein the temperature sensor and the electromagnet shunt tripping module are connected with the controller, the temperature sensor is arranged on a cable controlled by the circuit breaker and used for collecting the temperature of the cable and the temperature of a cable joint and transmitting temperature information to the controller for processing, and the electromagnet shunt tripping module is arranged on the circuit breaker and used for controlling the circuit breaker to trip and the controller controls whether the electromagnet shunt tripping module works. Further, the cable connector comprises an intermediate connector and a terminal connector. Further, the controller is provided with a plastic housing. Further, the controller comprises a central processor module, a temperature setting module, a display module and a shunt tripping driving circuit, wherein the temperature setting module, the display module and the shunt tripping driving circuit are connected with the central processor module, the display module is used for displaying information of the central processor module, and the temperature setting module is used for adjusting temperature parameters in the central processor module. The shunt tripping driving circuit is used for driving the electromagnet shunt tripping module to work. Further, a power module is further arranged in the controller, and the power module supplies power for the whole controller. The alarm system further comprises an alarm module, wherein the alarm module is connected with the central processing unit module and is controlled to alarm through the central processing unit module. Further, the alarm module comprises a resistor R3, a triode Q2 and a driving peripheral buzzer alarm module, wherein one end of the resistor R3 is connected with the central processing unit module, the other end of the resistor R3 is connected with the b pole of the triode Q2, the e pole of the triode Q2 is grounded, and the c pole of the triode Q2 is connected with the negative electrode of the power supply through the driving peripheral buzzer alarm module. Further, the shunt tripping driving circuit comprises a resistor R1, a resistor R2, a relay module RL1 and a triode Q1, wherein the b pole of the triode Q1 is connected with the central processing unit module through the resistor R1, the c pole of the triode Q1 is connected with the negative electrode of the power supply through a coil of the relay module RL1, the e pole of the triode Q1 is grounded, one end of the electromagnet shunt tripping module is connected with the e pole of the triode Q1, and the other end of the electromagnet shunt tripping