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air pressure protection switch

A protection switch, air pressure technology, applied in electrical switches, electrical components, circuits, etc., can solve the problems of poor stability, high manufacturing cost, and large spring error of air pressure protection switches, and achieve large-scale production and long service life. , the effect of small error

Active Publication Date: 2018-10-02
深圳市华泽电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the air pressure protection switches on the market are mostly composed of various electronic components and elastic components, and most of them contain springs. The structure is complex and the manufacturing cost is high.
The spring error is large, resulting in poor stability of the air pressure protection switch

Method used

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Examples

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Embodiment Construction

[0021] Such as figure 1 , 2 As shown, an air pressure protection switch includes a housing, a flexible barrier 30, and the flexible barrier 30 divides the housing into a first air chamber 40 and a second air chamber 50, and the flexible barrier 30 is located in the first One side of the air chamber 40 is provided with a contact piece 60 , and the first air chamber 40 is provided with two conductive pieces 70 matched with the contact piece 60 . One end of the conductive sheet 70 is located in the first air chamber 40 , and the other end is located outside the housing, and the conductive sheet 70 is provided with a wire connection opening 72 on the outer side of the housing. Through the wire connection port 72, the air pressure protection switch communicates with the circuit. The second air chamber 50 is a sealed air chamber with a certain air pressure, and the first air chamber 40 is provided with an opening 12 for connecting with other equipment. The sealed air chamber is p...

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Abstract

The invention discloses an air pressure protection switch comprising a housing and a flexible separation layer. The flexible separation layer divides the housing into a first air chamber and a second air chamber; a contact plate is arranged at one side, arranged at the first air chamber, of the flexible separation layer; and two conductive plates cooperating with the contact plate are arranged inside the first air chamber. One of the first air chamber and the second air chamber is a sealed air chamber with a certain air pressure. When the first air chamber is the sealed one with the certain air pressure, the second air chamber is provided with an opening for connecting other devices; and when the second air chamber is the sealed one with the certain air pressure, the first air chamber is provided with an opening for connecting other devices. When the pressure of the first air chamber is less than that of the second air chamber, the conductive plates and the contact plate are in contact and the circuit is connected; and when the pressure of the first air chamber is larger than that of the second air chamber, the conductive plates and the contact plate are separated and the circuit is disconnected. The air pressure protection switch has advantages of simple structure, low manufacturing cost, and high stability.

Description

technical field [0001] The invention relates to an air pressure protection switch, in particular to an air pressure protection switch with simple structure, low manufacturing cost and good stability. Background technique [0002] The pressure switch is a device combined with an electrical switch. When the preset fluid pressure is reached, the switch contact will act. When the pressure in the system is higher or lower than the rated safety pressure, the disc in the sensor moves instantaneously, and the switch joint is connected or disconnected through the connecting guide rod. When the pressure drops or rises to the rated recovery value, the disc Instantaneous reset, the switch automatically resets, or in simple terms, when the measured pressure exceeds the rated value, the free end of the elastic element will be displaced, and the switch element will be pushed directly or after comparison to change the on-off state of the switch element to achieve control. purpose of measur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H35/24
CPCH01H35/245
Inventor 石安云刘靖远刘宏志刘媚李硕刘灿梅刘宏基吴丹贺红梅刘路遥尹立坤薛丽付琳琳李丹丹陈俏芝曹成香
Owner 深圳市华泽电气有限公司
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