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Circuit breaker

A technology of circuit breakers and static contacts, applied in circuit breaker parts, circuit breaker contacts, circuits, etc., to achieve the effects of low product cost, extensive industrial value, and low electrical wear of contacts

Active Publication Date: 2016-11-09
XIAMEN TAIHANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the width and height of the molded case switch are beyond the scope of the miniature circuit breaker

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0037] see Figure 1 to Figure 7 , the present invention provides a circuit breaker, including a circuit breaker housing 1; the two ends of the circuit breaker housing 1 are respectively equipped with a first terminal 3 and a second terminal 12; the first terminal End 3 is connected with the main static contact 2 and the secondary static contact 15; the circuit breaker housing 1 is also provided with a release device; the end of the release device away from the circuit breaker housing 1 is connected with a moving contact head; the moving contact includes the active contact 11 corresponding to the main static contact 2, and the secondary moving contact 14 corresponding to the secondary static contact 15; the first terminal 3 and An electromagnet moving iron core 4 is arranged between the main static contacts 2, and an electromagnet coil 5 is sleeved outside the electromagnet moving iron core 4; one end of the electromagnet moving iron core 4 is connected to the first A termina...

Embodiment 2

[0052] see Figure 7 to Figure 8 , the present invention provides a circuit breaker, including a circuit breaker housing 1; the two ends of the circuit breaker housing 1 are respectively equipped with a first terminal 3 and a second terminal 12; the first terminal End 3 is connected with the main static contact 2 and the secondary static contact 15; the circuit breaker housing 1 is also provided with a release device; the end of the release device away from the circuit breaker housing 1 is connected with a moving contact head; the moving contact includes the active contact 11 corresponding to the main static contact 2, and the secondary moving contact 14 corresponding to the secondary static contact 15; the first terminal 3 and An electromagnet moving iron core 4 is arranged between the main static contacts 2, and an electromagnet coil 5 is sleeved outside the electromagnet moving iron core 4; one end of the electromagnet moving iron core 4 is connected to the first A termina...

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Abstract

The invention provides a circuit breaker. Upon switching on, a wrench is placed at a first position, and a secondary moving contact compresses a first elastic element, and the secondary moving contact and the secondary static contact are in contact, and at the same time, a primary moving contact and a primary static contact are kept disconnected; the wrench is placed at a second position, and the secondary moving contact further compresses the first elastic element, and the secondary moving contact and the secondary static contact are kept connected, and at the same time the primary moving contact and the primary static contact are in contact. A second terminal is connected to a current-carrying plate, and the primary moving contact and the secondary moving contact are connected to the current-carrying plate through a lead. The contact of the circuit breaker takes up small space, has low product cost, low contact electric worn, can interrupt short circuit operation of more than 50 kA on a micro-circuit breaker, which is extremely convenient for applications to special scenarios.

Description

technical field [0001] The invention relates to the technical field of IC card holders, in particular to a circuit breaker. Background technique [0002] A circuit breaker refers to a switching device that can close, carry and break current under normal circuit conditions, and can close, carry and break current under abnormal circuit conditions (including short-circuit conditions) within a specified time. Circuit breakers can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, and automatically cut off the circuit when they are severely overloaded, short-circuited, or under-voltage. Its function is equivalent to a fuse-type switch. Combination with overheating and underheating relays, etc., and it is generally not necessary to change parts after breaking the fault current. At present, it has been widely used. [0003] However, the moving contacts connected with the static contacts in the existing circuit breaker are...

Claims

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Application Information

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IPC IPC(8): H01H71/10H01H73/04H01H73/18H01H9/38H01H9/42
CPCH01H9/38H01H9/42H01H71/10H01H73/04H01H73/18
Inventor 李欣
Owner XIAMEN TAIHANG TECH
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