A positioning insulation packaging structure of a thermistor

Abstract

The invention relates to the field of a temperature-sensing and sensing technology, specifically a thermistor positioning insulating packaging structure. The thermistor positioning insulating packaging structure comprises two pins and leads; the two pins are led from the same end of the thermistor; the wire cores of the leads are welded on the pins to form welding points; an insulating strip is arranged between the two welding points in a penetration manner; the lower end of the insulating strip penetrates between the two leads; wire clamps are arranged on the two sides of the lower end of theinsulating strip respectively; the two wire clamps clamp the lead rubber skins on the corresponding sides respectively; and the outer side end planes of the two wire clamps and sensing head inner holes for packaging the thermistor are in interference fit. The thermistor positioning insulating packaging structure is reasonable in structure; the insulating strip forms isolation support between thetwo pin welding points; the pins and the leads are fixed by the wire clamps and pin clamping buckles to form integrated connection, so that the problem of insulation and isolation between two weldingpoints can be solved; the outer side end planes of the two wire clamps prop against the sensing head inner hole walls, so that the problem in centralizing of the thermistor and the welding point can be solved; and by tightly clamping the lead rubber skin layer, the tensile strength of the leads can be improved.

Description

technical field [0001] The invention relates to the technical field of temperature sensing, in particular to a positioning insulation package structure of a thermistor. 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-sensing probe, which senses the heat and cooking progress through direct contact. The lead wires lead out from the opening of the housing and are insulated with sealant. [0003] Since the temperature-sensing probe needs to be exposed to water vapor, its temperature-sensing shell needs to meet the requirements of food safety standards, so it is mostly made of sus304 stainless steel or aluminum, and t...

AI Technical Summary

Problems solved by technology

[0003] Since the temperature-sensing probe needs to be exposed to water vapor, its temperature-sensing shell needs to meet the requirements of food safety standards, so it is mostly made of sus304 stainless steel or aluminum, and the cost is relatively high

With the development of temperature sensing technology, in order to adapt to the overall design of the electric heating capacitor, the product structure is getting smaller and smaller, and the complex shape processing of the metal probe is becoming more and more difficult; the pins of the thermistor need to be soldered and inserted The temperature-sensing probe, its welding part is close to the metal shell, resulting in insufficient insulation, the embedment depth of the lead wire in the insulating glue is small and lacks a fixed structure, the tensile strength of the lead wire is poor, and the electrical safety protection is insufficient

Images