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Manufacturing method of metal-sheet-based negative temperature coefficient (NTC) thermistor temperature sensor

A technology of temperature sensor and thermistor, which is applied to thermometers, thermometers, instruments, etc. that use electric/magnetic elements that are directly sensitive to heat, can solve the problem that the reaction speed cannot meet the requirements of high sensitivity of temperature detection, etc. The effect of sensitivity

Active Publication Date: 2013-03-13
肇庆爱晟传感器技术有限公司
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Problems solved by technology

This reaction speed cannot meet the requirements for high sensitivity of temperature detection

Method used

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  • Manufacturing method of metal-sheet-based negative temperature coefficient (NTC) thermistor temperature sensor
  • Manufacturing method of metal-sheet-based negative temperature coefficient (NTC) thermistor temperature sensor
  • Manufacturing method of metal-sheet-based negative temperature coefficient (NTC) thermistor temperature sensor

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Embodiment Construction

[0047] Such as figure 2 As shown, the NTC thermistor temperature sensor based on the metal substrate of the present invention includes a metal substrate 1, and at least one NTC thermistor chip 3 is pasted on the metal substrate 1 by a glass insulating medium layer 2, The metal electrodes of the NTC thermistor chip 3 are correspondingly connected to lead wires 4 , and the connection between the NTC thermistor chip 3 and the lead wires 4 and the periphery of the NTC thermistor chip 3 are coated with a glass encapsulation layer 5 .

[0048] In the present invention, the thickness range of the metal substrate 1 is 0.05-0.2mm, and the thickness of the metal substrate 1 is thinner to ensure better thermal conductivity and shorter heat conduction time.

[0049] In addition, the thickness range of the NTC thermistor chip 2 in the present invention is 0.2-2 mm.

[0050] The present invention also discloses a manufacturing method of an NTC thermistor temperature sensor based on a meta...

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Abstract

The invention belongs to the technical field of temperature sensors, and in particular discloses a metal-sheet-based negative temperature coefficient (NTC) thermistor temperature sensor. The temperature sensor comprises a metal substrate, wherein at least one NTC thermistor chip is attached to the metal substrate through a glass insulating medium layer; a metal electrode of the NTC thermistor chip is correspondingly connected with a lead; and glass packaging layers are coated at the joint of the NTC thermistor chip and the lead and at the periphery of the NTC thermistor chip. In addition, theinvention discloses a manufacturing method for the temperature sensor. The temperature sensor has high heat-conducting property, has extremely short required heat conduction time in the temperature measuring process, has the thermal time constant of 0.5 to 3 seconds generally which is 1 / 10 of that of the conventional technology, and can well meet the requirement on the high sensitivity of temperature detection.

Description

technical field [0001] The invention belongs to the technical field of temperature sensors, in particular to a metal sheet-based NTC thermistor temperature sensor and a manufacturing method thereof. Background technique [0002] With NTC thermal chip as the core component, thermistors and temperature sensors composed of different packages are widely used in various temperature detection, temperature compensation, and temperature control circuits. The central role of the electronic signal. [0003] With the development of electronic technology, various electronics are further multi-functional and intelligent, and the application of NTC thermal chips in various occasions that need to detect, control, and compensate temperature is increasing. [0004] Due to the sensitivity requirements of detecting temperature, the response speed of NTC temperature sensor is required to be faster and faster, which requires the thermal time constant of NTC temperature sensor to be as small as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K7/22
Inventor 段兆祥杨俊柏琪星唐黎民
Owner 肇庆爱晟传感器技术有限公司
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