Device for testing surface temperature of PTC thermistor

A thermistor and surface temperature technology, which is applied in the direction of using electric devices, thermometers and measuring devices using electric/magnetic elements that are directly sensitive to heat, can solve the problem of large influence on temperature display, danger of live operation, large error in results, etc. problems, to achieve the effect of convenient operation, improved accuracy, and easy pick-and-place

Pending Publication Date: 2021-05-11
江苏钧瓷科技有限公司
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

This method is to paste the thin thermocouple wire on the surface of the PTC with high-temperature tape for testing, and there is also the risk of live operation; in addition, because the thermocouple wire has a protruding head, it cannot be in close contact with the PTC, so the error of the test result is large. poor repeatability
[0007] Infrared thermometer is a non-contact testing method, but whether it focuses or not has a great influence on the temperature display

Method used

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  • Device for testing surface temperature of PTC thermistor
  • Device for testing surface temperature of PTC thermistor
  • Device for testing surface temperature of PTC thermistor

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Embodiment Construction

[0038] In order to facilitate the understanding of the present invention, the present invention will be described more fully and in detail below in conjunction with the accompanying drawings and preferred embodiments, but the protection scope of the present invention is not limited to the following specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0039] In order to realize the purpose of the present invention, the technical scheme provided by the present invention is:

[0040] In some embodiments of the present invention, such as figure 1 As shown, a test device for the surface temperature of a PTC thermistor is disclosed, comprising: a test platform 1, a support frame 2, a tooling fixture 3 and an infrared temperature measuring probe 4; the test platform 1 is arranged at the bottom for carrying The fixed support frame 2, tooling fixture 3 ...

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Abstract

The invention discloses a device for testing the surface temperature of a PTC thermistor. The device comprises a test platform, a supporting frame, a tool clamp and an infrared temperature measurement probe, wherein the test platform is used for bearing the fixed support frame, the tool clamp and the infrared temperature measurement probe; the supporting frame can rotate in the circumferential direction of the supporting center of the supporting frame and is used for supporting the infrared temperature measuring probe; the tool clamp is arranged on the upper surface of the test platform and is used for clamping the PTC thermistor and driving the PTC thermistor to move; and the infrared temperature measurement probe is used for testing the surface temperature of the PTC thermistor. According to the invention, on one hand, non-contact temperature measurement is carried out on the surface of the PTC thermistor by using an infrared temperature measurement principle, so that heat conduction loss caused by a traditional contact test can be avoided, and potential danger and damage to a temperature display instrument caused by electrification of a test probe can also be avoided.

Description

technical field [0001] The invention relates to the technical field of temperature measurement of a thermistor, in particular to a testing device for the surface temperature of a PTC thermistor. Background technique [0002] Due to its special positive temperature coefficient characteristics, PTC heater products have been widely used in the heating of household appliances, such as auxiliary heating of air conditioners, heaters, Yuba, etc.; defrosting of traditional fuel vehicles, heating of new energy vehicles, battery heating, etc. Thermal management, etc., and in the field of high-power heating, the application range of PTC heaters is still expanding. [0003] PTC heater adopts PTC thermistor ceramic as the core heating element. Compared with traditional electric heating wire, electric heating tube and far-infrared quartz heater, it has automatic temperature control, wide voltage range, no open flame, safe and reliable, and long service life. and other advantages. The te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/22
CPCG01K7/22
Inventor 朱兴文
Owner 江苏钧瓷科技有限公司
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