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Single-contact external compressor protector

An external compressor technology, applied in thermal switch parts and other directions, can solve the problems of many parts for temperature correction, poor product reliability, complex assembly process, etc., to achieve high reliability, improve quality and use safety, The effect of easy processing and assembly

Inactive Publication Date: 2012-11-14
SHANGHAI AEROSPACE SCI & IND ELECTRIC APPLIANCE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problems existing in the external protector of the prior art are: the bimetal sheet adopts the double silver contacts of precious metals, which leads to high manufacturing cost, moreover, there are many parts for temperature correction, which leads to complicated assembly process and poor reliability of the product

Method used

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Examples

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Embodiment 1

[0017] See attached figure 1 , the present invention consists of a base box 1 provided with a cover plate 5, a bimetal sheet 4, a short terminal pin 2, a long terminal pin 7, a first pin 8 and a second pin 9, and the bimetal plate 4 is provided with a The moving contact 3 is provided with an arc piece of a welding hole 41 at the other end; the short connecting pin 2 is an "L"-shaped electrical connector provided with a static contact 21; the long connecting pin 7 is provided with a cantilever 71 The "L"-shaped electrical connector; one end of the short terminal pin 2 and the long terminal pin 7 is riveted in the cavity of the base box 1, and the cover plate 5 is buckled on the base box 1 to form a sealed cavity. The other end of the pin 2 and the long terminal pin 7 protrudes from the base box 1 and is welded with the first pin 8 and the second pin 9 respectively; one end of the bimetal sheet 4 is connected to the cantilever 71 of the long terminal pin 7 through the welding ho...

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Abstract

The invention discloses a single-contact external compressor protector. The single-contact external compressor protector comprises a base box, a bimetallic strip, a short wiring pin, a long wiring pin and two plug pins, wherein one end of the bimetallic strip is provided with a circular arc sheet with a movable contact; the short wiring pin is an L-shaped electric connecting piece with a static contact; the long wiring pin is an L-shaped electric connecting piece with a cantilever and a groove; ends of the short wiring pin and the long wiring pin are riveted in a cavity of the base box, and the other ends of the short wiring pin and the long wiring pin extend out of the base box and are respectively welded with the two plug pins; and one end of the bimetallic strip is welded with a cantilever of the long wiring pin by a welding pin through a welding hole, and the other end of the bimetallic strip is elastically connected with the static contact of the short wiring pin in a pressed manner. Compared with the prior art, the single-contact external compressor protector has a simple structure and components are convenient to process and assemble, thereby further reducing the production cost and failure risks of the products, achieving dual-protection for temperature and current, achieving high reliability, and further improving the quality and application safety of the product.

Description

technical field [0001] The invention relates to the technical field of electrical components, in particular to a single-contact external compressor protector suitable for single-phase. Background technique [0002] The compressor protector is a device that can automatically recover after automatically protecting the compressor. According to the temperature of the coil and the change of the motor current, the protector uses the temperature-sensing bimetal as a thermal response element. When the compressor is abnormal When working, as the current and the temperature of the compressor coil rise to the set temperature value, the bimetal element starts up quickly, opens the contact, and cuts off the power supply. When the bimetallic element cools down to a safe temperature, the contacts will automatically close to restore the working state of the policy, which has dual protection functions of current and temperature for the compressor. The external compressor protector is mainly...

Claims

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Application Information

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IPC IPC(8): H01H37/52
Inventor 李奇峰孙智云
Owner SHANGHAI AEROSPACE SCI & IND ELECTRIC APPLIANCE RES INST
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