Load bearing pad for metallization sintering of high-voltage direct-current ceramic relay shell and sintering process

Abstract

The invention discloses a load bearing pad for metallization sintering of a high-voltage direct-current ceramic relay shell. The relay shell is a cuboid with a hollow interior and an open bottom surface, two through holes are formed in the top surface of the cuboid, and the burning bearing pad comprises a bottom plate and support columns which are fixedly arranged on the bottom plate and used forbeing matched with the two through holes and supporting the relay shell. The invention further provides a metallization sintering process of the high-voltage direct-current ceramic relay shell, the load bearing pad is used as a supporting carrier, and a side sintering process is not adopted. The burning bearing pad is sleeved with the relay shell and makes line contact with the through hole of therelay shell, the phenomenon that the side wall sinks and deforms due to side burning is avoided, meanwhile, spaces are reserved in the upper face, the lower face and the side face of the relay shell,the atmosphere of the relay shell is more uniform in the metallization sintering process, and the metallization sintering quality of the relay shell is improved.

Description

technical field [0001] The invention belongs to the field of relay equipment, and in particular relates to a firing pad for sintering a relay shell and a sintering process. Background technique [0002] High-voltage DC ceramic relays are used in electric vehicles for power on and off. There are moving contacts inside. If the product is deformed, it will affect the function of the internal moving contacts. [0003] The metallization and sintering of the existing high-voltage DC ceramic relay shell generally adopts the side-firing process. A certain surface of the ceramic relay shell itself is a supporting surface. Because the ceramic relay shell is large in size and hollow inside, it is easy to use under high temperature and gravity conditions. Subsidence and deformation of the side wall of the housing lead to increased product size defects and increased manufacturing costs. Contents of the invention [0004] The technical problem to be solved by the present invention is t...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies and defects mentioned in the above background technology, and to provide a firing mat and a sintering process for the metallization and sintering of a high-voltage DC ceramic relay shell. The firing mat and the sintering process can effectively solve the problem of The problem of side wall sinking and deformation during metallization and sintering of ceramic relay housing

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