Vacuum arc-extinguishing chamber contact, vacuum arc-extinguishing chamber and vacuum circuit breaker

A vacuum interrupter and contact technology, which is applied to high-voltage air circuit breakers, circuits, high-voltage/high-current switches, etc., can solve the problem of unfavorable breaking of large currents in vacuum interrupters and easy ablation of contacts in vacuum interrupters and other problems, to achieve the effect of easy ablation, good support, and increased ring current
CN111668064AActive Publication Date: 2020-09-15PINGGAO GRP +2
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
PINGGAO GRP
Publication Date
2020-09-15

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Abstract

The invention relates to the field of high-voltage electric appliances, particularly to a vacuum arc-extinguishing chamber contact, a vacuum arc-extinguishing chamber and a vacuum circuit breaker. Thevacuum arc-extinguishing chamber contact comprises a conducting rod, a contact seat arranged on the conducting rod and provided with a hollow cavity, and a contact sheet fixed on the end surface of the contact seat, wherein a supporting body located between the bottom of the contact seat and the contact sheet and used for supporting the contact sheet is further arranged in the hollow cavity, andan insulating spacer is arranged on at least one side of the supporting body in the extending direction of the conducting rod. According to the invention, the problem that in the prior art, a vacuum arc-extinguishing chamber contact is prone to ablation is solved.
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Description

technical field

[0001] The invention relates to the field of high-voltage electrical appliances, in particular to a vacuum interrupter contact, a vacuum interrupter and a vacuum circuit breaker. Background technique

[0002] The vacuum interrupter is the core component of the vacuum switch, and it is responsible for cutting off the arc. The control and extinguishment of the arc is closely related to the control of the magnetic field by the contacts of the vacuum interrupter. The current magnetic field control technologies mainly include longitudinal magnetic structure and transverse magnetic structure. magnetic structure.

[0003] The vacuum interrupter of longitudinal magnetic structure is mainly cup-shaped longitudinal magnetic contact and coil type longitudinal magnetic contact. discrete state. The Chinese utility model patent with authorized notification number CN2752943Y discloses a high-voltage vacuum interrupter longitudinal magnetic field contact, including conduct...

Claims

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