Metal surface-mounted solid-state relay structure

Abstract

The invention discloses a metal surface-mounted solid-state relay structure, which comprises a metal shell part in which a power output part, a connecting part and an input driving part are packaged,and the metal shell part comprises a shell seat, a cover plate, a left electrode stem group and a right electrode stem group; the cover plate covers a seat cavity opening of the shell seat and is welded with the shell seat into a whole through a fusion welding process, the left electrode stem group and the right electrode stem group are respectively led out from the left side and the right side ofthe shell seat, and lead-out holes are sealed between electrode stems in the left electrode stem group and the right electrode stem group and the shell seat through a glass sintering process; and each electrode stem group comprises an electrode stem I and an electrode stem II which are arranged at equal intervals front and back, and the leading-out ends of the electrode stem I and the electrode stem II are high and low in dislocation; and the surface-mounted ends of the electrode stem I and the electrode stem II are lower than the bottom of the shell seat. The temperature adaptability is good, the machining performance is good, the sealing performance is good, the installation mode meets the surface mounting requirement, and the device adapts to automatic production.

Description

technical field [0001] The invention relates to electronic control components, in particular to a metal surface-mounted solid relay structure. Background technique [0002] Solid state relay casing materials mainly include metal, ceramic and plastic materials. [0003] Metal materials are mainly used for the shell of military solid relays, and the installation method is designed as in-line or additional mounting ears for installation; ceramic materials are mostly used for the shells of military and industrial solid relays, and the installation methods can be designed as in-line and surface mount ; Plastic materials are mostly used for industrial or commercial solid-state relay casings, and the installation methods can be designed as in-line and surface-mounted. [0004] There are following deficiencies in the above-mentioned design method: [0005] 1. The metal shell is installed in-line or with additional mounting ears. On the one hand, it takes up too much space, which i...

AI Technical Summary

Problems solved by technology

[0005] 1. The metal shell is installed in-line or with additional mounting ears. On the one hand, it takes up too much space, which is not conducive to the miniaturization design of the system; on the other hand, it is difficult to realize automatic welding, and the production efficiency is low.

[0006] 2. Ceramic materials are usually combined with metal materials to make a relay housing, but due to the complex processing technology and difficulty in processing, it is not conducive to heat dissipation of high-power devices, so it is rarely used

[0007] 3. Plastic materials have poor temperature adaptability and cannot meet the sealing requirements, so they are rarely used in the military field

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