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Proximity switch

A technology of proximity switches and switches, which is applied in the field of underwater instruments and equipment, can solve the problems of low pressure resistance of proximity switches and failure of normal use of proximity switches, and achieve the effect of avoiding seawater erosion

Pending Publication Date: 2020-08-18
WUHAN MARINE MACHINERY PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the proximity switches in the related art have low pressure resistance and are suitable for use in environments with no pressure or less pressure
Conventional proximity switches cannot be used normally in deep-sea environments with high requirements for pressure resistance and sealing performance.

Method used

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Embodiment Construction

[0029] In order to make the purpose, technical solution and advantages of the present disclosure clearer, the implementation manners of the present disclosure will be further described in detail below in conjunction with the accompanying drawings.

[0030] figure 1 It is a schematic structural diagram of a proximity switch provided by an embodiment of the present disclosure. Such as figure 1 As shown, the proximity switch includes: a housing 1 , a switch body 2 , a watertight socket 3 , an induction element 4 and an insulating sealing body 5 .

[0031] figure 2 It is a cross-sectional view of a proximity switch provided by an embodiment of the present disclosure. Such as figure 2 As shown, the housing 1 has a first opening 11 and a second opening 12; the switch body 2 is located in the housing 1; the watertight socket 3 is sealed and inserted in the first opening 11, and the watertight socket 3 is electrically connected to the switch body 2; The part 4 is movably insert...

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Abstract

The present disclosure provides a proximity switch comprising: a housing having a first opening and a second opening; a switch body positioned in the housing; a watertight socket hermetically inserted into the first opening, and electrically connected with the switch body; a sensing piece movably inserted into the second opening and configured to move towards the switch body under the action ofan external force; an insulation sealing body located between the switch body and the sensing piece, connected with the housing in a sealed mode, dividing an inner cavity of the housing into a firstcavity and a second cavity, wherein the switch body is located in the first cavity, and the sensing piece is located in the second cavity. The proximity switch has high pressure resistance, is good insealing performance and can adapt to the deep sea working environment.

Description

technical field [0001] The present disclosure relates to the technical field of underwater instruments and equipment, in particular to a proximity switch. Background technique [0002] A proximity switch is a position switch that triggers a switching action without direct mechanical contact with moving parts. When the metal detection body is close to the sensing component of the proximity switch, and the distance between the metal detection body and the sensing component reaches the operating distance of the proximity switch, the proximity switch can be activated without mechanical contact and applying any pressure. Proximity switches can be widely used in machine tools, metallurgy, chemical industry, textile and other fields. [0003] A proximity switch is provided in the related art, which includes a housing, an induction component and a main circuit board are arranged in the housing, and the induction component and the main circuit board are connected by wires. [0004]...

Claims

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Application Information

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IPC IPC(8): H03K17/945
CPCH03K17/945H03K2017/9455
Inventor 郭小伟郭艳茹王帅徐娜
Owner WUHAN MARINE MACHINERY PLANT
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