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A battery temperature sensing device and its preparation method

A technology of temperature sensing device and storage battery, which is applied in the direction of using electric devices, measuring devices, thermometers using electric/magnetic components directly sensitive to heat, etc., can solve the problems of low control accuracy and the like

Inactive Publication Date: 2011-11-30
CHINA NORTH VEHICLE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a storage battery temperature sensing device for the above defects in the prior art, which solves the problem of low control accuracy of the current storage battery temperature sensing device, and can be widely used in the temperature test of acidic liquids. The temperature measurement range: -55°C~+125°C, at the same time, the digital temperature sensing device does not need a signal processing circuit, and the output signal can be shared by multiple control devices

Method used

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  • A battery temperature sensing device and its preparation method
  • A battery temperature sensing device and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The battery temperature sensing device of this embodiment includes a housing 3, a cover 4, a wire 5, and a sensor chip 1. The sensor chip 1 is located at the bottom of the housing 3, and the upper end of the sensor chip 1 is provided with chip pins. The pin is welded with the wire 5 to form the chip pin and wire welding place 2; a part of the wire 5 passes through the temperature sensing device, and the part that passes through the temperature sensing device is provided with a heat shrink tube 7; the casing 3 is equipped with potting Material 6.

[0024] The bottom of the temperature sensing device is a cylinder, and the top is a hexagonal prism. The shell 3 is made of PVC polyvinyl chloride engineering plastic.

[0025] The sensor chip 1 is a DS18B20 digital temperature sensor, and the potting material includes epoxy resin, curing agent, thermal conductive material and filler.

[0026] The mass ratio of epoxy resin and curing agent is 7:3, epoxy resin is epoxy resin 618; cur...

Embodiment 2

[0035] The battery temperature sensing device of this embodiment includes a housing 3, a cover 4, a wire 5, and a sensor chip 1. The sensor chip 1 is located at the bottom of the housing 3, and the upper end of the sensor chip 1 is provided with chip pins. The pin is welded with the wire 5 to form the chip pin and wire welding place 2; a part of the wire 5 passes through the temperature sensing device, and the part that passes through the temperature sensing device is provided with a heat shrink tube 7; the casing 3 is equipped with potting Material 6.

[0036] The bottom of the temperature sensing device is a cylinder, and the top is a hexagonal prism. The shell 3 is made of PVC polyvinyl chloride engineering plastic.

[0037] The sensor chip 1 is a DS18B20 digital temperature sensor, and the potting material includes epoxy resin, curing agent, thermal conductive material and filler.

[0038] The mass ratio of epoxy resin and curing agent is 3:2, the epoxy resin is epoxy resin 618;...

Embodiment 3

[0050] The battery temperature sensing device of this embodiment includes a housing 3, a cover 4, a wire 5, and a sensor chip 1. The sensor chip 1 is located at the bottom of the housing 3, and the upper end of the sensor chip 1 is provided with chip pins. The pin is welded with the wire 5 to form the chip pin and wire welding place 2; a part of the wire 5 passes through the temperature sensing device, and the part that passes through the temperature sensing device is provided with a heat shrink tube 7; the casing 3 is equipped with potting Material 6.

[0051] The bottom of the temperature sensing device is a cylinder, and the top is a hexagonal prism. The shell 3 is made of PVC polyvinyl chloride engineering plastic.

[0052] The sensor chip 1 is a DS18B20 digital temperature sensor, and the potting material includes epoxy resin, curing agent, thermal conductive material and filler.

[0053] The mass ratio of epoxy resin and curing agent is 6:5, epoxy resin is epoxy resin 618; cur...

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Abstract

The invention relates to a temperature sensing device of a storage battery, which is characterized by comprising a shell (3), a sealing cover (4), a lead (5) and a sensing chip (1); the sensing chip (1) is located at the bottom of the shell (3), the upper end of the sensing chip (1) is provided with a chip pin, and the chip pin and the lead (5) form a welding part (2) of the chip pin and the lead in a welding manner; one part of the lead (5) passes through the temperature sensing device, and the part passing through the temperature sensing device is provided with a shrinkable tube (7); and the shell (3) is internally provided with an encapsulating material (6). The temperature sensing device solves the problem of low accuracy of the current temperature sensing device of the storage battery, and can be widely used in temperature test for acid containing liquid, wherein a temperature test range is from -55 DEG C to +125 DEG C; and in addition, the digital temperature sensing device needs no signal processing circuit, and the output signals can be shared by a plurality of control devices.

Description

Technical field [0001] The invention relates to a device and the preparation of the device, in particular, to a temperature sensing device and the preparation of the device. Background technique [0002] In order to improve the battery’s ability to receive power at low temperatures, and to automatically heat the battery at low temperatures to achieve automatic control of battery heating, domestically, only in the 1980s, a temperature sensing device suitable for working in acid solution was developed. The temperature sensing device adopts Bimetallic package, the working principle of bimetallic, when the temperature drops to the design value of on, the bimetal is closed; when the temperature rises to the off design value, the bimetal is off; the accuracy of the bimetal It depends entirely on the ratio of different metal materials in the bimetallic manufacturing process. The temperature sensing device encapsulated by the bimetal is prone to metal aging, ablation and other problems,...

Claims

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Application Information

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IPC IPC(8): G01K7/00G01K1/08G01K1/10
Inventor 刘胜利侯茂新高峰宋克岭李申张思宁李怡麒袁盛瑞乔桢何元俭
Owner CHINA NORTH VEHICLE RES INST
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