Balance force type high-voltage direct-current sealed relay

Abstract

The invention discloses a balance force type high-voltage direct-current sealed relay which comprises a housing, an electromagnetic system, a contact system, an arc blowing system and a metal grid arcextinguishing chamber. The electromagnetic system, a part of the contact system, the arc blowing system and the metal grid arc extinguishing chamber are all located in the housing. The electromagnetic system is connected with the contact system through a first support and a second support. The arc blowing system is positioned in the metal gate arc extinguishing chamber and is arranged at one endof the contact system; and the metal grid arc extinguishing chamber is positioned on one side of the contact system and is connected with the first support and the second support respectively. An arcblowing system formed by combining arc extinguishing magnetic steel lengthens electric arcs between contacts and introduces the electric arcs into a metal grid arc extinguishing chamber for arc extinguishing, so that the whole product is compact in structure and large in load volume ratio; the metal gate arc extinguishing chamber effectively absorbs the elongated arc of the arc extinguishing magnetic steel, thereby solving the problem of inter-arc high-voltage breakdown, and ensuring the load and service life of the contact.

Description

technical field [0001] The invention belongs to the technical field of relay manufacturing, and in particular relates to a balanced force type high-voltage direct-current sealed relay. Background technique [0002] Most of the existing high-voltage DC relays or contactors use a moving reed direct-acting (solenoid) structure to achieve the purpose of widening the contact gap and quickly extinguishing the arc to improve product life, but these products are Closed or open structure, using engineering plastics for pressure resistance or insulation, low environmental indicators, cannot be used in aviation or high reliability products. Contents of the invention [0003] In order to solve the above-mentioned problems in the prior art, the present invention provides a balanced-force high-voltage direct-current sealed relay. The technical problem to be solved in the present invention is realized through the following technical solutions: [0004] A balanced force type high-voltag...

AI Technical Summary

Problems solved by technology

[0002] Most of the existing high-voltage DC relays or contactors use a moving reed direct-acting (solenoid) structure to achieve the purpose of widening the contact gap and quickly extinguishing the arc to improve product life, but these products are Closed or open structure, using engineering plastics for pressure resistance or insulation, low environmental indicators, cannot be used in aviation or high reliability products

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