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Proximity sensor

A technology of proximity sensors and potentiometers, applied in the field of proximity sensors, can solve problems such as low production efficiency, poor reliability, and cumbersome production processes, and achieve the effects of improving measurement accuracy, stability, and production efficiency

Pending Publication Date: 2019-03-08
宜科(天津)电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The currently popular proximity sensors in the market are complex in assembly, cumbersome in production process, poor in reliability, low in production efficiency, and not adjustable.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0015] Such as figure 1 , figure 2 , Figure 4 as shown, figure 1 It is a schematic diagram of the overall assembly of the plastic front plug and the metal casing of the present invention; figure 2 It is a schematic diagram of the cross-sectional structure of the plastic front plug+metal shell of the present invention; Figure 4 It is a schematic diagram of the structure of semi-finished products assembled with internal components of the present invention; this embodiment provides a proximity sensor, including: four-core wire 1, sealing plug 2 and rear plug 3, LED small PCBA 4, main board PCBA 5, spring 6, magnetic core bracket 7. The magnetic core 8, the coil bobbin 9, and the metal shell 10, the coil bobbin 9 is packed into the magnetic core 8 with interference, the magnetic core support 7 is connected with the magnetic core 8 and the coil bobbin 9, and the spring 6 Put it into the positioning hole of the magnetic core bracket 7, the main board PCBA 5 is snapped into t...

Embodiment 2

[0027] Such as image 3 Shown is a schematic cross-sectional structure diagram of the all-metal shell of the present invention; on the basis of embodiment 1, this embodiment adds a front plug 11, and the front plug 11 and the metal shell 10 have an interference fit, and the interference ring is designed in the front plug induction The face-section outer ring can not only play a tight fit to prevent glue leakage, but also not affect the installation of the magnetic core and cause the magnetic core to be crushed; by changing the position of the interference ring of the front plug 11, the risk of crushing the magnetic core 8 is reduced.

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PUM

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Abstract

The invention discloses a proximity sensor. The proximity sensor comprises a four-core wire, a sealing plug, a back plug, an LED small PCBA, a main board PCBA, a spring, a magnetic core bracket, a magnetic core, a coil bobbin and a metal shell. The coil bobbin, the magnetic core and the magnetic core bracket are cooperatively connected to avoid the problem of faulty products because the magnetic core and the coil are in contact electrification and the magnetic core is in contact electrification with the metal shell, the main board PCBA is elastically connected with the coil bobbin, the magnetic core and the magnetic core bracket through the spring, namely the tolerance is absorbed and the magnetic core is close to an induction surface so as to improve the measurement precision; a potentiometer can be adjusted externally to avoid the product being defective due to some uncontrollable factors to result in poor product quality. The product is returned to normal use through regulation of the potentiometer and is subjected to design in a once gluing mode after assembling so as to improve the production efficiency and improve the product stability.

Description

technical field [0001] The invention relates to the technical field of sensor structures, in particular to a proximity sensor. Background technique [0002] The currently popular proximity sensors in the market are complex in assembly, cumbersome in production process, poor in reliability, low in production efficiency, and not adjustable. Contents of the invention [0003] Aiming at the technical problems existing in the above-mentioned prior art, the object of the present invention is to provide a proximity sensor. [0004] To achieve the purpose of the present invention, the present invention provides a proximity sensor, comprising: four-core wire, sealing plug and back plug, LED small PCBA, motherboard PCBA, spring, magnetic core support, magnetic core, coil bobbin, metal shell , the coil bobbin is loaded into the magnetic core with interference, the magnetic core bracket is connected with the magnetic core and the coil bobbin, the spring is placed in the positioning h...

Claims

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Application Information

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IPC IPC(8): G01D11/00G01D11/26
CPCG01D11/00G01D11/26
Inventor 崔洪桅
Owner 宜科(天津)电子有限公司
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