N-POLE WIRING STRUCTURE FOR CIRCUIT BREAKER

WIPO Patent Application WO/2022/135039

A1

A circuit breaker, and in particular a connection manner of an N-pole wire inside the circuit breaker. The following technical solution is used: an N-pole wiring structure for a circuit breaker, wherein a wiring portion (11) of an N-pole stationary contact (1) is of a straight strip shape; a middle seat (4) or/and a base (5) is/are provided with a groove, and the wiring portion is arranged in the groove; and an arc guiding plate (3) comprises a straight edge (31), a vertical edge (32) and a bevel edge (33), the bevel edge being obliquely arranged towards the straight edge, an arc guiding area being formed between the bevel edge and an arc guiding portion (13) of the N-pole stationary contact, an N-pole power source inlet wire (8) being connected to an end portion of the straight edge, and a second wire (7) being connected to the end of the vertical edge that is close to a moving contact (2) or a joint between the vertical edge and the bevel edge. By using the solution, a circuit breaker is provided, so that an electric arc transfer speed is increased, the ablation by an electric arc is reduced, and the breaking capability is improved.

JP2743989	[Title of Invention] Switching device
JP2701599	FRAME FOR ELECTROMAGNETIC DEVICE

ZHOU WEIFENG (CN)
LIN KAI (CN)
HU GUANGZHAO (CN)

PCT/CN2021/133618

June 30, 2022

November 26, 2021

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ZHEJIANG AOELEC ELECTRICAL CO LTD (CN)

H01H71/02; H01H71/00; H01H71/08; H01H73/18

CN112635258A	2021-04-09
CN112530765A	2021-03-19
EP0569651A1	1993-11-18
CN208352246U	2019-01-08
CN212136386U	2020-12-11

SHANGHAI HUICHENG HEYI INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)

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