Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Pressure switch

A pressure switch and pressure chamber technology, applied in the direction of electric switches, electrical components, circuits, etc., can solve the problems affecting the sensitivity of the switch and the precision of the return diaphragm, so as to improve the precision and sensitivity, high precision of the switch, and structure Design novel effects

Inactive Publication Date: 2012-05-23
郭卫昌
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing baffle is a layer of metal sheet, which will expand and deform when heated, which will directly affect the accuracy of the return diaphragm, and then affect the sensitivity of the entire switch

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pressure switch
  • Pressure switch
  • Pressure switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Such as figure 1 As shown, a pressure switch includes a housing 1, a return diaphragm 2, a ceramic push rod 3, a baffle plate 4, a connecting piece 5 and a connecting contact 6, and the returning diaphragm 2 is placed in the housing 1 , the top of the ceramic mandrel 3 passes through the baffle plate 4 and is connected to the connecting piece 5, the bottom of the ceramic mandrel 3 is in contact with the return diaphragm 2, and the top of the connecting piece 5 is provided with a return spring 7, which passes through the The adjusting screw 8 is fixed in the housing 1, the connecting contact 6 is placed above the connecting piece 5 and there is a gap between the connecting piece 5, and a closed pressure chamber is formed between the return diaphragm 2 and the housing 1 9. A pressure channel 10 communicating with the pressure chamber 9 is provided at the bottom of the housing 1. In order to improve the accuracy and sensitivity of the return diaphragm 2, the baffle 4 is fo...

Embodiment 2

[0016] Such as figure 2 As shown, a pressure switch includes a housing 1, a return diaphragm 2, a ceramic push rod 3, a baffle plate 4, a connecting piece 5 and a connecting contact 6, and the returning diaphragm 2 is placed in the housing 1 , the top of the ceramic mandrel 3 passes through the baffle plate 4 and is connected to the connecting piece 5, the bottom of the ceramic mandrel 3 is in contact with the return diaphragm 2, and the top of the connecting piece 5 is provided with a return spring 7, which passes through the The adjusting screw 8 is fixed in the housing 1, the connecting contact 6 is placed under the connecting piece 5 and is in contact with the connecting piece 5, and a closed pressure chamber 9 is formed between the return diaphragm 2 and the housing 1, The bottom of the casing 1 is provided with a pressure channel 10 communicating with the pressure chamber 9 . In order to improve the precision and sensitivity of the return diaphragm 2 , the baffle 4 is f...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a pressure switch, which comprises a casing, a returning diaphragm, a ceramic top rod, a baffle plate, a connection sheet and a connection contact, wherein the returning diaphragm is arranged in the casing, the top of the ceramic top rod passes through the baffle plate to be connected with the connection sheet, the bottom of the ceramic top rod is in contact with the returning diaphragm, the top of the connection sheet is provided with a reset spring, the reset spring is fixedly arranged in the casing through a regulation screw, the connection contact is arranged above the connection sheet, in addition, gaps are left between the connection contact and the contact sheet, a sealed pressure chamber is formed between the returning diaphragm and the casing, and the bottom of the casing is provided with a pressure passage communicated with the pressure chamber. The pressure switch is characterized in that the baffle plate is formed by overlapping two layers of metal sheets made of different materials. The pressure switch has the advantages that the structure design is novel, the switch precision is high, and the sensitivity is high.

Description

technical field [0001] The present invention relates to a switch, in particular to a pressure switch. Background technique [0002] Pressure switches are generally divided into normally closed switches and normally open switches. Regardless of whether it is a normally closed switch or a normally open switch, a baffle is arranged in the housing. The existing baffle is a layer of metal sheet, and the metal sheet will expand and deform when heated, which will directly affect the precision of the return diaphragm, and then affect the sensitivity of the entire switch. Therefore, a new technical solution is needed to solve the above technical problems. Contents of the invention [0003] The purpose of the present invention is to provide a pressure switch with small temperature difference and strong sensitivity. [0004] The technical scheme adopted in the present invention is: [0005] A pressure switch, comprising a housing, a return diaphragm, a ceramic plunger, a baffle p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01H35/34
Inventor 郭卫昌
Owner 郭卫昌
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com