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Surface-mount and fast-response temperature sensor with high temperature resistance

A technology of temperature sensor and quick response, which is applied in thermometers, thermometer parts, thermometers with electric/magnetic elements that are directly sensitive to heat, etc., which can solve the problem that the sensor cannot quickly and accurately measure the temperature of the measured object and increase the thermal response Time, slow response speed and other issues, to achieve the effect of shortening thermal reaction time, improving mechanical strength, and maintaining thermal balance

Active Publication Date: 2019-03-29
肇庆爱晟传感器技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the NTC temperature sensor made by this process, the NTC thermistor chip is located in the middle of the metal shell, making it far away from the measured object during temperature measurement, which increases the thermal response time and makes the sensor not fast and accurate. Measure the temperature of the measured object, the response speed is slow

Method used

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  • Surface-mount and fast-response temperature sensor with high temperature resistance
  • Surface-mount and fast-response temperature sensor with high temperature resistance
  • Surface-mount and fast-response temperature sensor with high temperature resistance

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Embodiment Construction

[0029] see Figure 2-4 , The surface mount rapid response high temperature resistant temperature sensor of the present invention includes a ceramic substrate 1, a thermistor chip 2, two du magnesium wires 3, two electronic wires 4 and two glass layers 5.

[0030] The ceramic substrate 1 is provided with an installation through hole 10, and two spaced metal welding layers 11 are provided on its surface. More preferably, the ceramic substrate 1 is an alumina ceramic substrate.

[0031] The thermistor chip 2 is arranged in the installation through hole 10, and it includes a cubic ceramic body and two electrodes respectively arranged on the upper and lower sides of the ceramic body, one side of the ceramic body is connected to the ceramic base The bottom surface of sheet 1 is flush. Specifically, the thermistor chip 2 is an NTC thermistor chip.

[0032] One end of the two Du magnesium wires 3 is respectively electrically connected to the two electrodes of the thermistor chip 2 ...

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Abstract

The invention relates to a surface-mount and fast-response temperature sensor with high temperature resistance, comprising a ceramic substrate, a thermistor chip, two magnesium wires, two electron wires, and two glass layers. The ceramic substrate is provided with a mounting through hole, and two spaced metal welding layers are arranged on the surface thereof. The thermistor chip is arranged in the mounting through hole, and comprises a cubic ceramic body and two electrodes respectively disposed on upper and lower sides of the ceramic body, a side surface of which is flush with a bottom surface of the ceramic substrate. One end of each of the two magnesium wires is electrically connected to the two electrodes of the thermistor chip, and the other ends thereof are electrically connected tothe two metal solder layers respectively. One end of each of the two electron wires is electrically connected to the two metal solder layers, respectively. The two glass layers are respectively encapsulated on the surface and the bottom surface of the ceramic substrate. The temperature sensor of the invention has the advantages of fast response speed, sensitive measurement, high mechanical strength and high temperature resistance.

Description

technical field [0001] The invention relates to the technical field of electronic components, in particular to a surface mounting fast response high temperature resistant 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. NTC...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/22G01K1/12
CPCG01K1/12G01K7/22
Inventor 黄俊维
Owner 肇庆爱晟传感器技术有限公司
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