A cross-section tapered liquid cold plate
A technology of liquid cold plate and cross section, which is applied in the field of liquid cold plate with tapered cross section, which can solve the problems of reduced capacity, reduced battery cycle life, and excessive battery temperature difference, so as to increase fluid disturbance, improve cooling capacity, and improve heat transfer effect of ability
Active Publication Date: 2021-09-28
JIANGSU UNIV
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Problems solved by technology
[0003] However, the temperature difference between the liquid cold plate and the battery is large when the liquid enters the liquid cold plate, and the heat dissipation effect is good. As the liquid flows to the outlet of the liquid cold plate, its temperature gradually increases, which greatly reduces the heat dissipation effect of the battery, resulting in the battery in-mould assembly. The temperature difference between the front and rear batteries is too large, resulting in reduced battery cycle life, reduced capacity, and even fire and explosion hazards
Method used
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Embodiment Construction
[0019] Such as Figure 1-Figure 3 As shown, this embodiment discloses a cross-section tapered liquid cold plate, including an upper cover plate 1, a plate body, a left header 4 and a right header 8, wherein the upper cover plate 1 is a rectangular flat plate, and the upper cover The plate 1 is covered and arranged above the plate body, and the left collector 4 and the right collector 8 have the same results and correspond to the sizes of the left and right sides of the plate body. The plate body is a cube as a whole, and several microchannels are arranged on the upper part of the plate body, so that when the upper cover plate 1 is set on the upper part of the plate body, the microchannels and the upper cover plate 1 form a closed space to allow cooling liquid to pass through. The cross-sectional area of the microchannel in the direction of liquid flow gradually decreases, so that the fluid velocity gradually increases and the flow disturbance increases, thereby increasing th...
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Abstract
The invention relates to a liquid-cooled plate with a tapered section, comprising an upper cover plate, a plate body, a left collector and a right collector, the upper cover covers the plate body, the left collector and the right collector The right collectors are respectively arranged on the left and right sides of the plate body, and the plate body is provided with several micro-channels, the cross-sectional area of the micro-channels in the direction of liquid flow gradually decreases. After adopting such a structure, due to the continuity of the liquid, its flow rate will inevitably increase, thereby increasing the fluid disturbance, improving the heat exchange capacity under the same temperature difference, and improving the cooling capacity of the battery at the rear end of the battery module by the liquid cold plate.
Description
technical field [0001] The invention relates to the technical field of thermal management of power batteries, in particular to a liquid cooling plate with a tapered section. Background technique [0002] New energy vehicles have no gas emissions during operation and are environmentally friendly. And it is conducive to the development of automobile lightweight, which is the mainstream development direction of the automobile industry. Among them, electric vehicles are the main form of new energy vehicles. As the energy storage unit of electric vehicles, the power battery will generate a lot of heat during its charging and discharging process, which will affect the capacity and cycle life of the battery, and even cause thermal runaway in severe cases, causing the whole vehicle to catch fire and explode. Therefore, it is extremely important to thermally manage the power lithium battery pack and control the battery operating temperature within a reasonable and effective range. ...
Claims
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IPC IPC(8): H01M10/613H01M10/625H01M10/617H01M10/6554H01M10/6556H01M10/6568
CPCH01M10/613H01M10/617H01M10/625H01M10/6554H01M10/6556H01M10/6568Y02E60/10
Inventor 唐爱坤袁雪振单春贤刘朝阳李建明
Owner JIANGSU UNIV