An electric vehicle battery pack and its battery module thermal management unit
A technology for battery modules and electric vehicles, which is applied to battery pack components, electrical components, secondary batteries, etc. It can solve the problems of difficulty in ensuring reliability, less coupling heating and heat dissipation, and low reliability, and it is easy to achieve reliability Guaranteed, high heating and heat dissipation heat transfer efficiency, reducing the effect of high sealing requirements
Active Publication Date: 2021-12-10
NORTHEAST FORESTRY UNIVERSITY
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Problems solved by technology
However, the traditional method of passing liquid into the bottom of the battery box has higher requirements on the sealing of the battery box, and its reliability is more difficult to guarantee
[0006] On the whole, the problem of the battery pack thermal management system in the prior art is that there is less coupling heating and heat dissipation, and the reliability of the liquid heat conduction method is low.
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[0040]The subject matter described herein will now be discussed with reference to example implementations. It should be understood that the discussion of these implementations is only to enable those skilled in the art to better understand and realize the subject matter described herein, and is not intended to limit the protection scope, applicability or examples set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as needed. For example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with respect to some examples may also be combined in other examples.
[0041] In this embodiment, an electric vehicle battery pack and its battery module thermal management unit are provided, such as...
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The invention discloses an electric vehicle battery pack and its battery module thermal management unit, which relates to the field of battery technology, and specifically includes actuators such as a pulsating heat pipe, a liquid cooling plate, a wind source, an integrated water tank, and a heat source. When the thermal management unit satisfies The first mode, the second mode and the third mode are activated respectively under the first predetermined condition, the second predetermined condition, and the third predetermined condition, and various parameters of the battery module are used as predetermined conditions to determine the working mode of the thermal management unit through conversion, It can better match the adjustment temperature of the battery module, couple heating and heat dissipation, use the pulsating heat pipe to contact the battery pack, the passage of the heat conduction medium does not need to pass between the battery cells, high reliability, and solve the coupling heating and heat dissipation in related technologies There are fewer technical problems, and the reliability of the liquid heat conduction method is low.
Description
technical field [0001] The invention relates to the field of battery technology, more specifically, an electric vehicle battery pack and a battery module thermal management unit coupled with heating and cooling functions. Background technique [0002] The Chinese patent application number CN201711387240.1 discloses that "the present invention relates to a battery pack thermal management system and a battery pack, and relates to the technical field of battery thermal management. Temperature adjustment. The main technical solution is: battery pack thermal management system, which includes: main liquid circulation pipeline, which is equipped with circulating water pump, heater and radiator; multiple branch liquid circulation pipelines , multiple branch liquid circulation pipelines are sequentially connected in parallel between the output port and the input port of the main liquid circulation pipeline; multiple flow regulating valves, and multiple flow regulating valves are resp...
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IPC IPC(8): H01M10/613H01M10/625H01M10/6551H01M10/6554H01M10/6557H01M10/6563H01M10/6568H01M10/6569H01M50/249H01M50/258H01M50/244H01M50/209
CPCH01M10/613H01M10/625H01M10/6557H01M10/6554H01M10/6551H01M10/6569H01M10/6568H01M10/6563Y02E60/10
Inventor 陈萌韦依聂文鹏周华进樊高飞李静静
Owner NORTHEAST FORESTRY UNIVERSITY