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An electric operating mechanism of a small circuit breaker

A technology of electric operating mechanism and small circuit breaker, which is applied in the direction of protection switch operation/release mechanism, etc., and can solve problems such as unreasonable structural design, high manufacturing cost, and unstable performance.

Active Publication Date: 2020-03-31
SIQI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structural design of the electric operating mechanism of the existing miniature circuit breaker is unreasonable, so the electric operating mechanism of the miniature circuit breaker has the defects of complex structure, unstable performance and high manufacturing cost

Method used

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  • An electric operating mechanism of a small circuit breaker
  • An electric operating mechanism of a small circuit breaker
  • An electric operating mechanism of a small circuit breaker

Examples

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Embodiment Construction

[0016] Such as Figure 1~6 As shown, the embodiment of the present invention is an electric operating mechanism for a small circuit breaker, including a housing 10, a circuit board 20, a transmission group 30, and a tripping group 40. The housing 10 includes a base 11 and an upper cover 12, basically An accommodating cavity is formed between the seat 11 and the upper cover 12, and the circuit board 20, the transmission group 30, and the tripping group 40 are respectively arranged in the accommodating cavity. The worm 32 on the motor 31, the gear set 33, and the rotating shaft 34 used to drive the handle of the circuit breaker and cooperate with the gear set 33, the gear set 33 includes a first-stage gear 331 meshing with the worm 32, and a first-stage gear 331 meshing The second-stage gear 332, the third-stage gear 333 meshed with the second-stage gear 332, the front of the third-stage gear 333 is provided with a transmission sleeve 35, and the corresponding transmission sleev...

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Abstract

The invention relates to an electric operating mechanism of a miniature circuit breaker. The electric operating mechanism comprises a housing, a circuit board, a transmission group and a tripping assembly; the transmission assembly comprises a motor, a worm, a gear set and a rotating shaft; the gear set includes a first-stage gear engaged with the worm, a second-stage gear engaged with the first-stage gear, and a third-stage gear engaged with the second-stage gear; a transmission sleeve is movably disposed on the front surface of the third-stage gear; the rotating shaft is provided with a connecting portion corresponding to the transmission sleeve; the connecting portion and the transmission sleeve are connected with each other through a pull rod; one side of the front surface of the third-stage gear, which is corresponding to the transmission sleeve, is provided with a shifting block which is matched with the transmission sleeve; when rotating towards the switching-on direction of thecircuit breaker, the third-stage gear is in linkage fit with the transmission sleeve; and when rotating towards the switching-off direction of the circuit breaker, the third-stage gear is in free fitwith the transmission sleeve. The electric operating mechanism of the invention has the advantages of simple structure, stable and reliable performance, low manufacturing cost and reliable realization of the switching-on and switching-off of the circuit breaker. .

Description

technical field [0001] The invention relates to the technical field of circuit breakers, in particular to an electric operating mechanism of a small circuit breaker. Background technique [0002] At present, miniature circuit breakers are widely used in low-voltage distribution networks, mainly in various places such as industry, commerce, high-rise buildings and residential buildings, and can provide overcurrent protection and leakage protection for electrical equipment such as motors, distribution lines, and lighting circuits. Protect. With the development of my country's smart grid, under the premise of requiring the safe operation of the grid, it is more and more urgent to realize the intelligent control of electrical appliances. In order to cope with new situation changes, the existing miniature circuit breaker should have automatic reclosing function. The electric operating mechanism of the miniature circuit breaker is an accessory for remote electric opening and clo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/43H01H71/70
CPCH01H71/43H01H71/70
Inventor 何云成张紫成
Owner SIQI TECH
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