Tight-contact temperature sensor allowing part insertion

Abstract

The invention relates to a tight-contact temperature sensor allowing part insertion. The temperature sensor comprises a metal shell, a thermosensitive resistor, two telescopic contact pins with elasticity, an encapsulation material and a fixed plate, wherein the thermosensitive resistor is arranged in the metal shell; the two ends of each telescopic contact pin are a free end and a fixed end respectively, the two telescopic contact pins are mutually parallel, the free ends of the two telescopic contact pins are electrically connected with two electrode leads of the thermosensitive resistor respectively, and the fixed ends of the two telescopic contact pins are arranged outside the metal shell; the metal shell is filled with the encapsulation material, and the joints of the thermosensitiveresistor, the electrode leads of the thermosensitive resistor and the telescopic contact pins are encapsulated and fixed through the encapsulation material; and the fixed plate is fixedly connected with the fixed ends of the two telescopic contact pins. The temperature sensor can effectively make contact with a tested object, can realize rapid temperature detection, is simple and reliable in structure and high in practicability and can be widely applied to various occasions requiring temperature control and temperature compensation.

Description

technical field [0001] The invention relates to the technical field of electronic components, in particular to an insertable and close-fitting temperature sensor. Background technique [0002] The NTC temperature sensor uses high-precision thermistor elements or chips with different appearance structures, and according to the different technical requirements of the actual application environment of the sensor, it adopts safe processing techniques such as soldering, metal cladding (pressing) bonding or micro-spot welding and reliable connection with wires. , and then carry out glue retention, insulation, moisture-proof and waterproof treatment, and apply epoxy resin encapsulation (potting) materials with excellent performance to seal and fix the thermistor element or chip in the metal or non-metal protective shell, forming a device that can meet the specific test requirements. Stable and reliable assembly of components required by temperature. [0003] NTC temperature sensor...

AI Technical Summary

Problems solved by technology

[0004] However, the existing NTC temperature sensor has the following defects: the hard contact method is used to contact the measured object, and when the shape or size of the measured object changes, it cannot be effectively contacted, resulting in temperature measurement deviation; The temperature is collected in the form of point contact, and the contact area is small, and there will be temperature measurement deviation; the response to collecting temperature is slow, and it is impossible to quickly and accurately measure and provide accurate temperature measurement signals

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