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Flexible temperature sensor and battery pack

A temperature sensor, flexible technology, applied in the direction of thermometers, secondary batteries, thermometer parts, etc., can solve the problems of limiting the installation position of temperature sensors, limiting the number of temperature sensor installations, and affecting the installation of temperature sensors, so as to increase the temperature sensitivity area, improve the temperature sensitivity and detection accuracy, and improve the effect of working reliability

Pending Publication Date: 2021-09-21
XIAOGAN HUAGONG GAOLI ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The battery pack generally has one or more sets of battery modules, and the number of temperature sensors installed is large, but the installation space in the battery pack is limited, which affects the installation of the temperature sensor, or limits the number of temperature sensors installed, or limits the temperature sensor. The installation location, so it is necessary to optimize the installation convenience of the temperature sensor

Method used

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  • Flexible temperature sensor and battery pack
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Examples

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Effect test

Embodiment 1

[0021] like figure 1 , the embodiment of the present invention provides a flexible temperature sensor, including a thermistor 11, a substrate 12 and a first FPC film 13, the substrate 12 is a copper flexible board, and the first FPC film 13 wraps the substrate 12 to A flexible circuit board is formed, and a device window is opened on the first FPC film 13 to expose the device mounting position of the substrate 12 and an electrical connection window is opened to expose the electrical connection position of the substrate 12. The thermistor 11 is mounted on the device installation position, and a flexible wire 21 is overlapped at the electrical connection position.

[0022] The thermistor 11 is a conventional element in the art; the thermistor 11 is preferably soldered and fixed on the substrate 12 in a patch mode (that is, connected to the exposed device mounting position of the substrate 12), such as by soldering and fixing, further Preferably, the thermistor 11 is protected b...

Embodiment 2

[0035] An embodiment of the present invention provides a battery pack, including a battery case and at least one set of battery modules arranged in the battery case, the battery case includes a case body and a case cover, and also includes a plurality of battery packs provided in the first embodiment above. The flexible temperature sensor is mounted on the cell surface of the battery to be tested, or the flexible temperature sensor is mounted on the case cover and is located directly above the battery to be tested.

[0036] For the mounting of the flexible temperature sensor, since the first FPC film 13 is used to wrap the corresponding components, the first FPC film 13 is glued to the corresponding position.

[0037] When the flexible temperature sensor is directly mounted on the surface of the cell of the battery to be tested, the structure of the above temperature sensor enables the copper foil to quickly conduct heat to the NTC chip, which is equivalent to only a thin film ...

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Abstract

The invention relates to a flexible temperature sensor. The flexible temperature sensor comprises a thermistor, a copper substrate and a first FPC film; the first FPC film wraps the substrate to form a flexible circuit board; the first FPC film is provided with a device window for mounting the thermistor and an electric connection window for the lap joint of a flexible wire. In addition, the invention also relates to a battery pack adopting the flexible temperature sensor. The temperature sensor has the characteristic of flexibility, and can easily adapt to working conditions such as narrow installation space and the like; the FPC film wraps the substrate, so that the insulating property and the temperature resistance of the temperature sensor can be improved, and the working reliability of the temperature sensor is improved; the copper substrate also has a good heat-conducting property, so that the temperature sensing area of the temperature sensor can be obviously increased, and the temperature sensing sensitivity and the detection accuracy of the temperature sensor can be effectively improved; and therefore, the temperature sensor has the advantages of simple structure, convenience in installation, high working reliability and the like, and can better meet the temperature monitoring requirements of the battery pack and the like.

Description

technical field [0001] The invention relates to a flexible temperature sensor and a battery pack using the flexible temperature sensor. Background technique [0002] Temperature sensors used in battery packs generally need to have the following characteristics: fast temperature response, long-term high temperature resistance, easy installation, and high voltage insulation performance. At present, the optimization of structure and process is generally used to solve the requirements of such temperature sensors for high response, accurate temperature measurement, and high stability, so as to ensure the reasonable distribution of energy of new energy vehicles and achieve the purpose of monitoring the safety of the whole vehicle. The battery pack generally has one or more sets of battery modules, and the number of temperature sensors installed is large, but the installation space in the battery pack is limited, which affects the installation of the temperature sensor, or limits t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/22G01K1/08G01K1/12G01K1/14H01M10/48
CPCG01K7/22G01K1/08G01K1/12G01K1/14H01M10/486Y02E60/10
Inventor 杨思恒陈得良阳星
Owner XIAOGAN HUAGONG GAOLI ELECTRONICS
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