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Position detection device, position sensing device and position sensing system

A technology of devices and sensor valves, which is applied in the direction of measuring devices, utilizing fluid devices, instruments, etc., can solve the problems of poor performance of sensors, and achieve the effects of high temperature resistance, good effect, and obvious changes in air pressure

Active Publication Date: 2012-10-17
SAIC-GM-WULING AUTOMOBILE CO LTD
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problem of poor performance of existing sensors in humid, watery and high-temperature environments, the present invention provides a position detection device, including a device body and a sensor spool, the sensor spool is fixed to the device body in a reciprocating manner Inside, its tail section is submerged in the device body, and its first section is located outside the device body. The device body is respectively opened with an air inlet for connecting to an external air source and a vent hole communicating with the air inlet. When the sensor valve core is detected When the moving parts move, the sensor spool gradually blocks or clears the passage between the intake hole and the vent hole

Method used

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  • Position detection device, position sensing device and position sensing system
  • Position detection device, position sensing device and position sensing system
  • Position detection device, position sensing device and position sensing system

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as figure 1 As shown, the position sensing system of this embodiment includes an alarm device 7, a logic control device 6, an air pipe 5, a compressed air source 4, a throttling and decompression device 3 and a position sensing device; the position sensing device includes an air pressure switch 2 and position detection device 1 . The position detection device 1 includes a device body 10 and a sensor valve core 11. The sensor valve core 11 is fixed in the device body 10 and can reciprocate therein. The tail section of the sensor valve core 11 is submerged in the device body 10, and its first section is located in Outside the device body 10 , the device body 10 is respectively provided with an air inlet 12 for connecting to an external compressed air source 4 and an air release hole 13 communicating with the air inlet 12 . The compr...

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PUM

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Abstract

The invention provides a position detection device, which comprises a device body and a sensor valve core, wherein the sensor valve core is fixed in the device body in a reciprocating mode; a tail section of the sensor valve core is immersed in the device body, and a head section of the sensor valve core is positioned outside the device body; an air inlet hole for connecting an external air source and an air leakage hole communicated with the air inlet hole are respectively formed on the device body; and when the sensor valve core moves along with the movement of a detected part, the sensor valve core gradually blocks or dredges a channel between the air inlet hole and the air leakage hole. The invention also provides a position sensing device and a position sensing system by using the position detection device. The position detection device has high performance in humid, waterish and high-temperature environments.

Description

technical field [0001] The invention relates to position sensors in the field of industrial control. Background technique [0002] At present, the sensors used in the domestic engine manufacturing industry are mostly inductive or capacitive metal induction switches, which have a certain waterproof level and are not resistant to high temperatures. At high temperature, when water or other liquids are washing, the pins of the sensor will have poor contact; when working in an environment higher than 50 degrees, the internal coil and non-metallic materials will be deformed, and the sensing accuracy and sensitivity will decrease or even fail. . Contents of the invention [0003] In order to solve the technical problem of poor performance of existing sensors in humid, watery and high-temperature environments, the present invention provides a position detection device, including a device body and a sensor spool, the sensor spool is fixed to the device body in a reciprocating mann...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B13/00
Inventor 申红森陆贤辉管传富
Owner SAIC-GM-WULING AUTOMOBILE CO LTD
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