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Heat-sensitive sensor

A thermal sensor and thermistor technology, applied in the field of sensors, can solve the problems of short circuit, break waterproof effect, easy bending of thermal sensors, etc., to avoid damage, reduce the risk of bending and break, and ensure the sealing and waterproof effect. Effect

Inactive Publication Date: 2020-09-15
淮南市明理网络科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to make up for the deficiencies of the existing technology and solve the problems that the existing thermal sensors are easy to bend and cause short circuit, breakage or poor waterproof effect, a thermal sensor proposed by the present invention

Method used

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Embodiment approach

[0031] As an embodiment of the present invention, a plurality of sets of tapered back-stopping rings 48 are provided at intervals in the left sleeve 41 on the right side of the second inversion protrusion 47, and the inner cones of the tapered back-stopping rings 48 Both the surface and the outer cone surface are inclined to the left. When installing the grommet 4, because the inner cone surface and the outer cone surface of the conical surface resistance ring 48 are all inclined to the left, it will turn outward when it is squeezed by the lead wire 3, which will not affect the installation; After cover 4, by continuing to press the power to the right of the left cover body 41, it is loosened after deformation. The extrusion force between the lead wires 3 and the grommet 4 realizes self-locking, and they cannot move relative to each other, thereby reducing the risk of the lead wire 3 being bent and broken; at the same time, a corresponding pre-set for the grommet 4 to move to ...

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Abstract

The invention relates to the technical field of sensors, in particular to a heat-sensitive sensor, which comprises a housing and a thermistor. The housing is provided with a wire outlet hole for leading out a lead wire of the thermistor; the lead wire is sleeved with a wire protection sleeve; and the inner wall of the wire protection sleeve is in clearance fit with the lead wire. The wire protection sleeve comprises a left sleeve body, a middle sleeve body and a right sleeve body which are integrally formed from left to right; and an annular groove matched with the wire outlet hole is formed in the outer side of the right sleeve body, the left side wall of the annular groove is a conical surface concaved leftwards, and the thickness of the housing is larger than the width of the outer sideof the annular groove. Through the arrangement of the wire protection sleeve, the sealing and waterproof effects of the wire outlet hole are guaranteed, the maximum bending amplitude of the lead wireis reduced, the problem that the adjacent lead wires are contacted and short-circuited due to the fact that the bending amplitude is too large is avoided, and the risk of bending fracture is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a thermal sensor. Background technique [0002] With the rise of smart home appliances, electric heating appliances are generally equipped with various sensors and micro-processing terminals, so as to realize the purpose of self-adjusting the heat and controlling the cooking program. The temperature sensor is the core of intelligent control. The temperature sensor used in electric heating appliances is generally a top temperature probe, which senses the heat and cooking progress through direct contact with the heating vessel; The thermistor has a built-in structure, and the leads of the thermistor are drawn out from the opening of the shell. [0003] However, the temperature sensor is easy to be touched and cause the lead wire to bend, which not only increases the short circuit caused by the contact of adjacent lead wires, but also causes its breakage after long-term bending, wh...

Claims

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Application Information

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IPC IPC(8): G01K7/22G01K1/14G01K1/08
CPCG01K1/08G01K1/14G01K7/22G01K2207/00
Inventor 程晓光唐朋飞李鑫
Owner 淮南市明理网络科技有限公司