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A battery module heating device and its manufacturing method

A heating device and battery module technology, which is applied in secondary battery manufacturing, secondary battery, battery assembly machine, etc., can solve the problems of poor heat dissipation effect of the battery, large temperature difference inside the battery, etc., and achieve uniform and rapid heating

Active Publication Date: 2018-11-23
DONGGUAN GUI XIANG INSULATION MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of large temperature difference inside the battery and poor heat dissipation effect of the battery existing in the existing secondary battery heating structure, and to provide a battery module heating device with uniform heating, small heat dissipation thermal resistance and stable operation and its Manufacturing method

Method used

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  • A battery module heating device and its manufacturing method
  • A battery module heating device and its manufacturing method
  • A battery module heating device and its manufacturing method

Examples

Experimental program
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Effect test

Embodiment 1

[0030] refer to figure 1 and figure 2 , this embodiment relates to a battery module heating device, including upper and lower casings (1, 2), batteries 3, phase change bodies 4, heating elements 5 and controllers 6, the upper casing 1 and the lower casing 2 detachable connection, an empty cavity is formed inside, the electric core 3, the phase change body 4 and the heating element 5 are arranged in the empty cavity; the phase change body 4 is coated on the outside of the electric core 3, The heating element 5 is arranged on the phase change body 4, the power input end of the heating element 5 is connected to the output end of the controller 6 through a wire, and the controller 6 is arranged on the upper casing 1 Or on the lower casing 2. The phase change body 4 is composited by graphite / paraffin and polymer materials. Since the heating element 5 is evenly covered in the phase change body 4, when the electric core 3 needs to be heated, the heating element 5 is energized to ...

Embodiment 2

[0042] This embodiment is based on Embodiment 1, as an improvement to the heating element 5, such as image 3 and Figure 4As shown, the heating element 5 has a mesh structure and is arranged inside the phase change body 4 . There are two heating elements 5 , which are respectively arranged in the upper and lower ends of the phase change body 4 . The mesh heating element is made of resistance wire or heating carbon fiber, and its thickness is 0.5mm-2mm. The mesh-shaped heating element is evenly distributed in the phase change body 4, which can transmit the emitted heat to the battery cell 3 more evenly, and solve the problem that the resistance wire heating method cannot evenly heat each battery cell 3 in the battery. Heating may easily lead to a large temperature difference inside the battery and affect the working stability of the battery.

[0043] This embodiment also provides a method for manufacturing a battery module heating device, which is characterized in that it i...

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Abstract

The invention discloses a battery module heating device, which comprises upper and lower casings, electric cores, phase change bodies, heating elements and a controller. The upper casing and the lower casing are detachably connected, and an empty cavity is formed inside , the electric core, the phase change body and the heating element are arranged in the empty cavity; the phase change body is coated on the outside of the electric core, the heating element is arranged on the phase change body, the The power input end of the heating element is connected to the output end of the controller through wires, and the controller is arranged on the upper casing or the lower casing. Also provided is a manufacturing method of the battery module heating device. The heating element of the present invention is evenly covered in the phase change body. When the electric core needs to be heated, the controller sends out a signal to heat the heating element, and transfers the heat to the phase change body, and then to the electric core, heating It is uniform and fast, and realizes the purpose of heating the electric core, and has the beneficial effects of uniform heating, small thermal resistance of heat dissipation and stable operation.

Description

technical field [0001] The invention relates to the technical field of battery thermal management, in particular to a battery module heating device and a manufacturing method thereof. Background technique [0002] With the development of the world economy, with the increase of energy demand and the enhancement of environmental protection awareness in various countries, many tools or equipment powered by oil use electricity as the driving energy. The secondary power rechargeable battery has a large discharge rate and Due to the large output power, it is increasingly used in energy storage systems and power supply systems. The charging and discharging of existing secondary batteries is completed by a series of complex chemical reaction processes. The violent chemical reactions in the charging and discharging process will be accompanied by a large amount of heat generated and accumulated inside the battery. In the case of high temperature, it is easy to lose the discharge perf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/615H01M10/617H01M10/6571H01M10/659H01M10/04
CPCH01M10/0404H01M10/615H01M10/617H01M10/6571H01M10/659Y02E60/10Y02P70/50
Inventor 张国庆吕又付司徒文甫
Owner DONGGUAN GUI XIANG INSULATION MATERIAL CO LTD
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