Proximity switch

A technology of proximity switches and connecting plates, applied in the field of sensors, can solve problems such as wear and tear, affecting the detection accuracy of proximity switches, affecting the inductance of proximity switches, etc., to achieve the effect of ensuring fixed connection

Pending Publication Date: 2019-09-20
湖南准联传感器有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a proximity switch, which aims to solve the problem that in the prior art, the magnetic core coil with copper wires connected to the outer periphery is easily caused to wear and tear during use, thereby affecting the inductance of the proximity switch, and further affecting the proximity switch. The problem with detection accuracy

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Embodiment Construction

[0038] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0039] In the proximity switch provided by the embodiment of the present invention, a layer of magnetic conductor is provided on the surface of the magnetic core body, and the circular fixed plate and the sensor chip of the first conductive sheet and the second conductive sheet are respectively arranged on both sides by conductive glue. Fixed connection, since the first conductive sheet and the second conductive sheet are respectively arranged on both sides of the circular fixed disk, the first conductive sheet of the circular fixed disk is bonded and fixed with the magnetic conductor of the magneti...

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Abstract

The invention is applicable to the technical field of sensors, and provides a proximity switch which comprises a sensor chip, a magnetic core body and a circular fixing disc, the sensor chip comprises a main chip PCB and a PCB connecting plate, and the magnetic core body comprises a magnetic core body and a magnetizer arranged on the surface of one side of the magnetic core body; a first conducting strip is arranged on one side face of the circular fixing disc, a plurality of second conducting strips are evenly arrayed on the other side face of the circular fixing disc, a plurality of conducting holes penetrate through the circular fixing disc, and each conducting hole penetrates through the corresponding first conducting strip and the corresponding second conducting strip. The first conducting strip is bonded with magnetizer glue of the magnetic core body through conducting resin, and the PCB connecting plate is fixedly connected with the corresponding second conducting strip. According to the proximity switch provided by the invention, the problem that the inductance value of the proximity switch is increased and the detection accuracy of the proximity switch is improved due to the fact that a magnetic core coil with a copper wire arranged on the periphery is effectively avoided and abrasion and breakage caused by long-time use are avoided.

Description

technical field [0001] The invention belongs to the technical field of sensors, in particular to a proximity switch. Background technique [0002] Proximity switch is a switch type sensor, also known as non-contact proximity switch, which is an ideal electronic switch sensor. When the metal detection body approaches the sensing area of ​​the switch, the switch can quickly send out electrical instructions without contact, pressure, and sparks, accurately reflecting the position and stroke of the motion mechanism. [0003] Since the proximity switch needs to be applied in different environments, the temperature resistance of the proximity switch must be good in order to achieve the accuracy of the proximity switch in different environments. In the prior art, general proximity switches are often used at room temperature, but when encountering extremely bad weather, for example, in Heilongjiang and other areas in northern China, because the temperature in winter will reach minu...

Claims

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Application Information

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IPC IPC(8): H03K17/95
CPCH03K17/9517H03K17/9505
Inventor 李洪林伍成强
Owner 湖南准联传感器有限公司
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