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Electromagnetic release of circuit breaker

An electromagnetic tripper and electromagnetic tripping technology, applied in circuits, electrical switches, electrical components, etc., can solve the problems of complex assembly process, lack of thermal tripping components, and long tripping time.

Pending Publication Date: 2020-10-23
上海瑞忒尔电气技术有限公司
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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 electromagnetic tripper for a circuit breaker, which simplifies tripping, and aims at the technical defects of the above-mentioned plug-in circuit breaker tripping device lacking thermal tripping elements, many parts, complicated assembly process, and long tripping time. The structure of the buckle system reduces the difficulty of assembly. At the same time, the energy storage element is used to increase the speed of the moving armature hitting the buckle, shorten the tripping time, and increase the safety of the circuit breaker.

Method used

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  • Electromagnetic release of circuit breaker
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  • Electromagnetic release of circuit breaker

Examples

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Embodiment 1

[0040] as attached figure 1 and 2 As shown, a tripping system of a circuit breaker provided by this embodiment includes a contact support 1, and a tripping actuator 2 is mounted on the contact supporting 1, and the tripping actuator 2 is connected with the electromagnetic trip The buckle drive component 3 is linked with the thermal trip drive component 4 , and the trip energy storage component 5 is linked with the moving armature 6 to accelerate the rotation of the moving armature 6 so as to drive the tripping actuator 2 to accelerate the tripping action.

[0041] Specifically, it is: figure 1, 2, 10 and 11, the tripping actuator assembly 2 includes a jumper 201 and a lock 202, the jumper 201 is rotatably mounted on the contact support 1, and the lock 202 can Rotatingly installed on the contact support 1, the lock 202 can lock and unlock the jumper 201 so as to realize the locking and unlocking of the circuit breaker operating mechanism; furthermore, the jumper 201 It is ro...

Embodiment 2

[0049] as attached Figure 17 , as shown in 18 and 19, in another embodiment provided by the present invention, the energy storage driving part 102 is an energy storage driving lobe, and the energy storage reset part 50101a is corresponding to the energy storage driving lobe When the energy storage lock 501 rotates counterclockwise to the maximum position, the linkage between the energy storage drive lobes and the energy storage reset concave angle groove 1 is used to push the contact support 1 during counterclockwise rotation. The energy storage lock body 50101 rotates clockwise to compress the energy storage spring 502 to store energy again. Other structures are the same as those in Embodiment 1, and will not be further described in detail here.

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Abstract

The invention discloses an electromagnetic release of a circuit breaker. The electromagnetic release comprises an electromagnetic release driving assembly (3), wherein the electromagnetic release driving assembly (3) comprises a moving armature (6), and the electromagnetic release is characterized in that a release energy storage assembly (5) is linked with the moving armature (6) to accelerate clockwise rotation of the moving armature (6). The electromagnetic release is advantaged in that the structure of the release is simplified, assembly difficulty is reduced, the speed of striking the lock catch by the moving armature is improved by utilizing the energy storage element, the release time is shortened, and use safety of the circuit breaker is improved.

Description

technical field [0001] The invention belongs to the technical field of circuit breakers, and in particular relates to an electromagnetic tripper of a circuit breaker. Background technique [0002] The thermal magnetic release is an important part of the molded case circuit breaker. It plays the role of overload protection and short circuit protection in the entire circuit breaker. Because of its stable and reliable performance, it is widely used. In the release of the existing circuit breaker, when there is an overload current in the circuit, the bimetal sheet of the thermal protection element is heated and deformed, pushing the drawbar, and then the operating mechanism is activated to disconnect the circuit; when there is a short-circuit current in the circuit, the electromagnetic The system generates electromagnetic force, and the armature moves to move the drawbar, which in turn causes the operating mechanism to act and disconnect the circuit. [0003] Chinese patent 202...

Claims

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Application Information

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IPC IPC(8): H01H71/24H01H71/16H01H71/40H01H3/30
CPCH01H3/3005H01H71/16H01H71/24H01H71/40
Inventor 刘时胜王斌李阳智
Owner 上海瑞忒尔电气技术有限公司
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