Liquid cooling plate with bionic flow channel structure for lithium ion battery pack
A lithium-ion battery pack and liquid-cooled plate technology, which is applied to secondary batteries, electrochemical generators, circuits, etc., can solve the problem of increased size and weight of heat dissipation modules, the benefit cannot meet the design requirements, and the poor heat dissipation effect of liquid-cooled plates and other issues, to achieve the effect of reducing weight, reducing additional output energy consumption, and small thickness
Pending Publication Date: 2022-07-29
JIANGSU UNIV
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Problems solved by technology
Traditional liquid cold plates are usually shaped like parallel, serpentine, and tree-shaped channels. Although they are easy to process, they are often thicker, which leads to an increase in the size and weight of the heat dissipation module.
At the same time, under the traditional flow channel design, the heat dissipation effect of the liquid cooling plate is poor. Designers often increase the heat dissipation area to achieve better heat dissipation performance, but this will greatly increase the flow resistance and thus increase the pumping power consumption. , the resulting benefits cannot meet the design requirements
Method used
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[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, embodiments of the present application. Based on the embodiments in this application, all other embodiments obtained by designers in the art without creative work fall within the protection scope of this application.
[0020] According to the attached figure 1 to the attached Figure 4 , this specific embodiment adopts a bionic flow channel structure liquid cold plate for a lithium ion battery pack, including a lithium ion battery pack 1 and a liquid cold plate pack 2, and the lithium ion battery module 1 includes a plurality of first batteries The unit 101 and the second battery unit 102 , the liquid-cooling plate group 2 includes a plurality of liquid-cooling plate bodies 20 , and the liquid-cooling pla...
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Abstract
The invention discloses a liquid cooling plate with a bionic flow channel structure for a lithium ion battery pack, which comprises the lithium ion battery pack and a liquid cooling plate group, the lithium ion battery pack comprises a plurality of battery units, the liquid cooling plate group comprises a plurality of liquid cooling plate bodies, each liquid cooling plate body comprises a cover plate and a base, the base is provided with a flow channel, and the flow channel is arranged on the cover plate. The device is composed of a liquid inlet channel, a liquid outlet channel and a branch flow channel, and the branch flow channel is of a branch structure similar to a branch root system. The flow channel of the liquid cooling plate adopts a bionic topology structure, and under the same heat dissipation effect, compared with a cold plate of a traditional channel structure, the resistance of the internal flow channel is greatly reduced, so that the power consumption of a pump is reduced. In addition, the thickness of the liquid cooling plate is small, a large amount of space can be saved, and the weight can be reduced. By means of the two characteristics, the heat dissipation effect of the battery heat management system is guaranteed, and the additional output energy consumption of the battery module can be reduced.
Description
technical field [0001] The invention relates to a thermal management technology of lithium ion batteries, in particular to a liquid cold plate with a bionic flow channel structure for a lithium ion battery pack. Background technique [0002] Lithium-ion batteries are the main power source of electric vehicles. With the rapid development of new energy vehicles, lithium-ion batteries are increasingly developing towards high power density, thinness and high integration. Problems are also becoming increasingly prominent. The existing heat dissipation measures mainly focus on the heat dissipation of the liquid-cooled cold plate, and the heat is taken away through the conjugate heat transfer between the flow of the cooling liquid in the channel and the inner wall of the flow channel. Therefore, the shape of its internal flow channel directly determines the flow resistance and heat transfer performance. Traditional liquid-cooling plates are usually dominated by parallel, serpenti...
Claims
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Login to View More IPC IPC(8): H01M10/613H01M10/6557H01M10/6568H01M10/647H01M10/625
CPCH01M10/613H01M10/6557H01M10/6568H01M10/647H01M10/625
Inventor 吉恒松罗天贝李翔仲敏波何志霞
Owner JIANGSU UNIV