Power battery pack with built-in cooling pipeline
A technology for power battery packs and cooling pipelines, which is applied to secondary batteries, battery pack components, battery/fuel cell control devices, etc., can solve the problems of battery pack cooling medium leakage, etc. The effect of easy processing and increased space utilization
Inactive Publication Date: 2020-07-03
HEFEI GUOXUAN HIGH TECH POWER ENERGY
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Problems solved by technology
[0003] The invention proposes a power battery pack with a built-in cooling pipeline, which can solve the technical problem that the existing battery pack is prone to the risk of leakage of the cooling medium caused by external impact
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[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments.
[0025] An embodiment of the present invention provides an arrangement of cooling pipelines in a power battery pack, aiming to provide a safe, compact thermal management cooling system with small pressure drop.
[0026] Such as figure 1 As shown, the power battery pack with built-in cooling pipeline described in this embodiment includes a box body 1, and the box body 1 is fixed on the frame of an electric vehicle through a support frame 11; The fixed plate 111 is threadedly connected with the frame of the electric vehicle through the fixed plate 111...
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The invention discloses a power battery pack with a built-in cooling pipeline. A purpose of the invention is to solve the technical problem that the existing battery pack is easily impacted by the outside to cause the risk of cooling working medium leakage. The power battery pack comprises a box body, wherein a battery module is placed in the box body, the box body is fixed on a frame in an electric vehicle, a liquid cooling system is arranged in the box body, the liquid cooling system comprises a pipeline system, a liquid cooling plate and a heat conduction pad, the pipeline system is arranged at the bottom of the box body, the liquid cooling plate is arranged below the pipeline system, the heat conduction pad is arranged between the bottom of the battery module and the liquid cooling plate, the pipeline system comprises a pipeline, the pipeline is a cooling liquid flow channel and comprises a plurality of light pipes, the light pipes are connected through a three-way joint, and a water inlet assembly and a water outlet assembly are arranged at the ends of the pipeline. The power battery pack is reasonable in design, simple and reliable in pipeline structure and easy to machine, so that a battery system is safe and energy-saving, and the energy density is improved.
Description
technical field [0001] The invention relates to the technical field of power battery thermal management systems, in particular to a power battery pack with a built-in cooling pipeline. Background technique [0002] Electric vehicles use lithium-ion batteries, and their performance in all aspects is significantly affected by temperature. When the electric vehicle is running under different working conditions, the lithium battery is discharged at different rates, and the heat in the battery pack begins to accumulate. For the battery pack that adopts liquid cooling method, the heat generated by the battery reaches the surface of the liquid through the liquid cooling plate, and is taken away from the battery pack through the liquid circulation. Considering the flatness of processing and the convenience of transportation, the liquid cooling plate is generally divided into multiple pieces, and the liquid cooling plate with a water nozzle is connected by pipelines. The layout of t...
Claims
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IPC IPC(8): H01M10/6568H01M10/613H01M10/625H01M2/10B60L58/26
CPCH01M10/613H01M10/625H01M10/6568H01M50/20Y02E60/10Y02T10/70
Inventor 郭晓峰黄文雪韩宁丁治华黄骏吴定国
Owner HEFEI GUOXUAN HIGH TECH POWER ENERGY