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Small-sized high-power sealed direct-current solid-state relay

A solid-state relay, high-power technology, applied in electrical components, electronic switches, pulse technology and other directions, can solve the problems of unsatisfactory use requirements, non-sealed products, small load capacity, etc., to achieve good sealing, convenient production and debugging, The effect of strong load capacity

Inactive Publication Date: 2010-10-20
SHAANXI QUNLI ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing solid state relays are mainly epoxy resin potting structure products, with small load capacity and poor heat dissipation performance, which cannot meet the requirements of aviation, aerospace, ships, weapons, nuclear industries and other fields.
And there are no sealed products for small high-power solid-state relays above 40A

Method used

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  • Small-sized high-power sealed direct-current solid-state relay
  • Small-sized high-power sealed direct-current solid-state relay
  • Small-sized high-power sealed direct-current solid-state relay

Examples

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Embodiment Construction

[0020] combined with figure 1 , 2 , 3, 4, 5 describe an embodiment of the present invention.

[0021] A small high-power sealed DC solid relay, which is composed of a metal case 1, a metal cover plate 4, a control circuit 7 and a power output circuit 8, the power output circuit 8 is set on the bottom of the metal case 1, and the control circuit 7 is set on the metal case 1 On the top layer, the metal cover plate 4 is fixed on the top of the metal shell 1 by welding and sealing in a nitrogen-protected environment, so that the metal shell is filled with high-purity nitrogen. Two input terminals 5 are installed on the rear end surface of the metal shell 1 through sintering and sealing of the glass insulator 3 , and two output terminals 6 are installed on the front surface through the sintering and sealing of the glass insulator 3 . Four mounting holes 9 are provided at the outer four corners of the metal casing 1 .

[0022] The control circuit 7 is a printed board circuit comp...

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Abstract

The invention relates to a small-sized high-power sealed direct-current solid-state relay comprising a metal casing, a metal cover plate, a control circuit and a power output circuit, wherein the power output circuit is arranged at a bottom layer of the metal casing, the control circuit is arranged at a top layer of the metal casing, and the metal cover plate is hermetically fixed at the top of the metal casing; and two input terminals are hermetically installed on the back end face of the metal casing, two output terminals are hermetically installed on the front end face of the metal casing, the two input terminals are connected with the input end of the control circuit, the output end of the control circuit is connected with the input end of the power output circuit, and the output end of the power output circuit is connected with the two output terminals. The invention adopts two-layer structure design and has small volume, large load current, long service life, good environmental adaptation performance and high reliability, and the leakage rate is not greater than 1*10-1Pa.cm3 / s.

Description

technical field [0001] The invention relates to a small-sized high-power DC solid relay. Background technique [0002] Solid state relay is an important branch of the field of relays. Its interior is entirely composed of solid components. Compared with traditional electromagnetic relays, there are no moving parts inside. It has the characteristics of high reliability, long life, good vibration resistance and shock resistance. There is a tendency to replace electromagnetic relays under application conditions with high performance requirements and harsh environments. Existing solid state relays are mainly epoxy resin potting structure products, with small load capacity and poor heat dissipation performance, which cannot meet the requirements of aviation, aerospace, ships, weapons, nuclear industries and other fields. And there are no sealed products for small high-power solid-state relays above 40A. Contents of the invention [0003] The technical problem solved by the pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/72
Inventor 梁海梅陈向东朱煜
Owner SHAANXI QUNLI ELECTRIC
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