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Electronic tripping device of circuit breaker

A trip device and electronic technology, applied in emergency protection devices, circuits, electrical components, etc., can solve the problems of difficult installation and uncompact structure of the electronic trip device of circuit breakers, avoid positioning difficulties, and improve safety. Effect

Pending Publication Date: 2022-01-14
SHANGHAI RENMIN ELECTRICAL APP WORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an electronic tripping device for circuit breakers in order to solve the problem that the existing circuit breaker electronic tripping device is not compact in structure and difficult to install the circuit breaker electronic tripping device

Method used

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  • Electronic tripping device of circuit breaker
  • Electronic tripping device of circuit breaker
  • Electronic tripping device of circuit breaker

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Embodiment Construction

[0031] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Such as figure 1 , 5 , an electronic tripping device for a circuit breaker, including a housing 1, a bus bar 7, a transformer 9 and a flux transformer 8, wherein the bus bar is installed outside the housing 1. The housing 1 is composed of a base 13 , a middle cover 12 and an upper cover 11 , and the middle cover and the upper cover 11 are installed on the base 13 in turn. Such as Figure 4 , the upper cover 11 and the middle cover 12 are fixed together by screws 16 on both sides, and the transformer 9 is installed in the middle of the base 13 and the middle cover 12 .

[0033] Such as image 3 , there is a three-layer bracket 15 in the middle of the inner side of the middle cover 12, and the integrated printed circuit board 2 is installed on the bracket 15, and the integrated printed circuit board 2 is installed on the bracket 15 o...

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Abstract

The invention relates to an electronic tripping device of a circuit breaker. The device comprises a shell, a busbar, a mutual inductor and a magnetic flux converter, and is characterized in that the busbar is mounted on the outer side of the shell; the shell is composed of a base, a middle cover and an upper cover. The middle cover and the upper cover are sequentially installed on the base; the mutual inductor is mounted between the base and the middle cover; a multilayer bracket is arranged in the middle of the inner side of the middle cover and is provided with an integrated printed circuit board; a groove is formed in the upper cover, and a plurality of indicating lamps and adjusting holes are arranged in the groove; and the magnetic flux converter is installed on the outer side of the shell and connected with the integrated printed circuit board through a wire. According to the circuit breaker electronic tripping device, modular design is adopted, the mutual inductor and the electronic tripping device are separated from each other through the middle cover, safety is guaranteed, the integrated printed circuit board is fixed to the middle cover, the adjusting knob of the adjusting hole and the signal lamp are connected with the integrated printed circuit board through the upper cover, and the positioning difficulty of the knob and the signal lamp in the installation process is avoided.

Description

technical field [0001] The invention relates to the technical field of low-voltage electrical appliances, in particular to an electronic tripping device for a circuit breaker. Background technique [0002] The electronic molded case circuit breaker uses the control signal generated by the intelligent controller to control the trip unit to break the circuit breaker, so that the circuit breaker can protect the circuit. The various functions of the electronic low-voltage circuit breaker are realized by the electronic release device. The electronic release device includes: mutual inductor, circuit board and actuator, as well as brackets for fixing and connecting the three. Each pole of the circuit breaker has a mutual inductance The transformer detects the current status flowing through the circuit breaker in real time. The transformer converts the large current into a small current signal and sends it to the circuit board. The circuit board processes the signal according to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/02H01H71/04H01H71/12
CPCH01H71/0207H01H71/12H01H71/04
Inventor 赵瑞峰黄晨史烨桦
Owner SHANGHAI RENMIN ELECTRICAL APP WORKS
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