Battery pack cooling structure
A technology for cooling structures and battery packs, applied in secondary batteries, circuits, electrical components, etc., can solve problems such as accelerating the aging rate of electrolytes, electrodes and diaphragms, destroying the consistency of battery packs, and battery failure, achieving good consistency , avoid losses, and maintain consistency
Active Publication Date: 2014-12-31
CHINA ELECTRIC POWER RES INST +1
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Problems solved by technology
Because high temperature can accelerate the aging rate of the electrolyte, electrodes and separators, when the temperature difference in the battery pack is large, the aging rate of the high temperature part will be significantly faster than that of the low temperature part, and the physical property differences between different batteries will increase over time. Obviously, thereby destroying the consistency of the battery pack, and eventually causing the entire battery pack to fail prematurely
Method used
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Embodiment Construction
[0021] The battery cooling structure in the present invention will be further described in detail in conjunction with the accompanying drawings.
[0022] like figure 2 As shown, the battery pack 1 of the present invention is divided into two rows by 16 battery cells and arranged between two baffles 2, and there is a gap 4 of 4mm for ventilation between every two battery cells. The edges of the top and bottom ends of the battery pack are fixed by strip angle steel 3, and the ends of the four angle steels are fixed on the baffles 2 on the left and right sides, and the angle steel and baffles will fix and clamp the battery pack. role. like figure 1 As shown, the battery cell 1 used in the present invention is a cuboid with two poles at its top: a positive pole and a negative pole respectively.
[0023] like image 3 As shown, the battery box is in the shape of a cube, which is composed of four side plates, a top plate, a bottom plate and an internal frame. Two strips of squ...
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Abstract
The invention relates to a battery pack cooling structure. The two sides of the battery pack are respectively provided with a baffle, angle steel used for fixing the battery pack is fixedly connected between the two baffles, a clearance is kept between each two battery monomers, and the battery pack fixed by the baffle and the angle steel is fixedly connected into a battery box. The cooling structure comprises an air inlet structure and an air outlet structure which are arranged at the two sides of the battery pack, the air inlet structure comprises a fluid guide board I and blast pipes which are uniformly inserted and connected on the fluid guide board I, and the air outlet structure comprises a fluid guide board II and blast pipes which are arranged on the fan on the side board of the battery box and are uniformly inserted and connected on the fluid guide board II. The battery pack cooling structure is provided with independent ventilation channel, nonuniform fluid field distribution caused by nonuniform pressure field is avoided, and the surface temperature of each battery monomer remains good consistency. Besides, the ventilation channel is independent, cooling air quantity loss caused by short circuit or other condition is avoided, and cooling efficiency of fan is improved.
Description
technical field [0001] The invention belongs to the field of batteries, in particular to a cooling structure for battery packs suitable for electric vehicles and energy storage systems. Background technique [0002] As primary energy such as oil, natural gas and other resources become more and more scarce, human beings are faced with severe challenges that the living environment may continue to deteriorate. In order to reduce energy costs and realize the sustainable development of the world, countries all over the world have carried out research on electric vehicles and energy storage technology. The idea is to use batteries with high power capacity as the power system and energy storage system. Therefore, choosing a suitable battery has become one of the keys to the development of electric vehicle technology and energy storage technology. [0003] When the battery is charged and discharged, it will generate electrochemical reaction heat and Joule heat, and the heat will af...
Claims
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IPC IPC(8): H01M10/613H01M10/6563H01M10/625H01M10/6566
CPCY02E60/10
Inventor 杨凯刘皓范茂松王丽娜惠东来小康
Owner CHINA ELECTRIC POWER RES INST