Battery pack
A technology for battery packs and single cells, which is applied to secondary batteries, battery pack components, circuits, etc., and can solve problems such as poor cooling uniformity of battery packs and poor cooling effect of single cells
Active Publication Date: 2022-04-15
BYD CO LTD
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- Application Information
AI Technical Summary
Problems solved by technology
[0002] The bottom plate of the battery pack in the related art usually adopts a serpentine flow channel, and the liquid inlet and outlet pipes are located at the first and last ends of the serpentine flow channel. The cooling effect of the body battery is better, and the temperature of the flow channel section near the tail end of the liquid outlet pipe is higher, and the cooling effect of the single battery at the corresponding position is not good, so that the cooling uniformity of the battery pack as a whole is not good
Method used
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Embodiment Construction
[0050] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0051] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself...
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The invention discloses a battery pack which comprises a battery assembly and a tray, the battery assembly comprises at least one battery unit, the battery unit comprises a plurality of single batteries, the length direction of each single battery is a first direction, the plurality of single batteries are arranged along a second direction, and the tray comprises at least one temperature adjusting unit. The temperature adjusting unit comprises a bottom plate and a temperature adjusting runner and a confluence runner which are formed on the bottom plate, the temperature adjusting runner and the battery unit are oppositely arranged up and down so as to exchange heat with the single battery, the confluence runner and the battery unit are staggered up and down so as not to exchange heat with the single battery, and the temperature adjusting runner and the confluence runner extend along a first direction; the temperature adjusting flow channels and the confluence flow channels are arranged in the second direction, and any temperature adjusting flow channel exchanges heat with at least one single battery arranged in the second direction and exchanges heat with at most one single battery arranged in the first direction. The battery pack is good in cooling consistency and small in structural size.
Description
technical field [0001] The invention relates to the technical field of batteries, in particular to a battery pack. Background technique [0002] The bottom plate of the battery pack in the related art usually adopts a serpentine flow channel, and the liquid inlet and outlet pipes are located at the first and last ends of the serpentine flow channel. The cooling effect of the body battery is better, and the temperature of the flow channel section near the tail end of the liquid outlet pipe is higher, and the cooling effect of the single battery at the corresponding position is not good, so that the cooling uniformity of the battery pack as a whole is not good. Contents of the invention [0003] The invention provides a battery pack, which has the advantage of good cooling consistency. [0004] The battery pack according to an embodiment of the present invention includes: a battery assembly, the battery assembly includes at least one battery unit, the battery unit includes ...
Claims
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IPC IPC(8): H01M50/209H01M10/613H01M10/617H01M10/6556H01M10/6568
CPCH01M10/617H01M10/613H01M10/6568H01M10/6556H01M50/209H01M50/204Y02E60/10H01M10/6554
Inventor 王永南曾毅廖正远赖福柱郑卫鑫
Owner BYD CO LTD