Circuit breaker suitable for debugging delay tripping

A circuit breaker and tripping technology, which is applied in the field of debugging circuit breakers with delayed tripping, can solve the problems of bimetal sheet position deviation, screw difficult to adjust the screw, and inconsistency of the adjusting screw position, and achieve the effect of ensuring position accuracy

Active Publication Date: 2019-04-09
DONGGUAN JIYE ELECTRICAL EQUIP CO LTD
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Problems solved by technology

[0002] Existing circuit breakers, especially single-breakpoint circuit breakers, are not convenient for automatic debugging of circuit breakers. The core reason is that they have design defects that are not suitable for automatic testing: 1. The bimetallic strip and The heating element is fixed, and secondly, the position of the adjusting screw on the bimetal sheet changes with the heating and deformation of the bimetal sheet, resulting in that the

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  • Circuit breaker suitable for debugging delay tripping
  • Circuit breaker suitable for debugging delay tripping

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[0022] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and the drawings, and the content mentioned in the embodiments does not limit the present invention.

[0023] Such as figure 1 with figure 2 As shown, the present invention provides a circuit breaker suitable for debugging delayed tripping, which includes a circuit breaker main body and a delayed trip assembly 2 provided in the circuit breaker main body. The circuit breaker main body includes a casing 11, a rotating The traction assembly 12 provided in the housing 11 and the brake opening mechanism 13 installed in the housing 11, the time delay trip assembly 2 includes a heating element 21 detachably installed in the housing 11, The heating element 21 is electrically connected to the bimetal 22 of each phase, the debugging fixing plate 23 installed in the housing 11 and arranged in parallel with the heating element...

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Abstract

The invention relates to the technical field of circuit breakers, in particular to a circuit breaker suitable for debugging delay tripping, comprising a circuit breaker main body and a delay trippingassembly; the circuit breaker main body comprises a shell, a traction assembly rotationally arranged in the shell and an opening mechanism arranged in the shell; the delay tripping assembly comprisesa heating element, a bimetallic strip arranged on the heating element, a debugging fixed plate arranged in parallel with the heating element, a debugging piece movably arranged on the debugging fixedplate for being abutted against the heating element to swing, and a reset piece for driving the heating element to reset; a gap is formed between the debugging fixed plate and the heating element, andthe bimetallic strip is heated, bent and is abutted against the traction assembly to rotate so as to enable the rotating traction assembly to trigger the opening mechanism to be switched off. The position of the debugging piece in the invention on the debugging fixed plate is unchanged, thereby guaranteeing the position precision of the debugging piece, facilitating automatic debugging equipmentto be aligned with a debugging part; and the delay tripping assembly of the structure is suitable for automatic debugging of the circuit breaker.

Description

technical field [0001] The invention relates to the technical field of circuit breakers, in particular to a circuit breaker suitable for debugging time-delay tripping. Background technique [0002] Existing circuit breakers, especially single-breakpoint circuit breakers, are not convenient for automatic debugging of circuit breakers. The core reason is that they have design defects that are not suitable for automatic testing: 1. The bimetallic strip and The heating element is fixed, and secondly, the position of the adjusting screw on the bimetal sheet changes with the heating and deformation of the bimetal sheet, resulting in that the screw cannot be aligned with the adjusting screw for adjustment during the automatic test; 2. The bimetal sheet and its time-delay release assembly There are deviations in the position of self-assembly and inconsistency in the position of the adjusting screw, which makes it difficult for the screw rod of the automatic test to align with the ad...

Claims

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Application Information

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IPC IPC(8): H01H71/44H01H71/10
CPCH01H71/10H01H71/44
Inventor 匡红勇苏洪新
Owner DONGGUAN JIYE ELECTRICAL EQUIP CO LTD
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