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An integrated structure of a power battery module and a liquid cooling system

A battery module and power battery technology, which is applied to battery pack parts, structural parts, secondary batteries, etc., can solve the cumbersome assembly process of liquid-cooled battery packs, poor temperature uniformity of single cells, and battery charging and discharging. Poor performance and other problems, to achieve the effect of simplifying hoisting, eliminating assembly and coordination problems, and improving energy density

Active Publication Date: 2021-06-22
开沃新能源汽车集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the weight of the battery module and the matching accuracy requirements between the battery module and the cold plate, the assembly process of the liquid-cooled battery pack is cumbersome, the installation efficiency is low, and the labor cost is relatively high.
In addition, liquid-cooled thermal management usually performs heat exchange on one surface of the battery module (such as: bottom heat exchange, end surface heat exchange or large surface heat exchange), which has low heat exchange efficiency and poor temperature uniformity of single cells. Battery charge and discharge performance is poor

Method used

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  • An integrated structure of a power battery module and a liquid cooling system
  • An integrated structure of a power battery module and a liquid cooling system
  • An integrated structure of a power battery module and a liquid cooling system

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] Such as Figure 1 to Figure 6 As shown, an integrated structure of a power battery module and a liquid cooling system according to the present invention includes a battery module and a module frame, the battery module is formed by a plurality of single cells 7 arranged in parallel, and the battery module In the module frame, a cooling chamber is provided in the module frame, and a liquid inlet 5 and a liquid outlet 11 are provided on the outer wall of the module frame, and the liquid inlet 5 and the liquid outlet 11 communicate with the cooling chamber ; Both the liquid inlet 5 and the liquid outlet 11 are provided with a guide block 17, the guide block 17 is conical, and the cone tip of the guide block 17 is set outward.

[0027] Hanging lugs 4 are provided on the outer wall of the module rack.

[0028] There are interconnected cavity flow passages inside the...

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Abstract

The invention discloses an integrated structure of a power battery module and a liquid cooling system, which includes a battery module and a module frame. In the group frame, a cooling chamber is provided in the module frame, and a liquid inlet and a liquid outlet are provided on the outer wall of the module frame, and the liquid inlet and the liquid outlet are connected with the cooling chamber; the liquid inlet A diversion block is arranged in the liquid outlet and the liquid outlet, the diversion block is conical, and the cone tip of the diversion block is set outward. The invention has simple structure and good cooling effect.

Description

Technical field: [0001] The invention relates to an integrated structure of a power battery module and a liquid cooling system. Background technique: [0002] With the popularity of electric vehicles, power batteries, as one of the core technologies of electric vehicles, have received more and more attention. As the power device of electric vehicles, the power battery pack needs to have higher output voltage and output power. Therefore, a power battery pack is usually composed of multiple battery modules connected in series and parallel. Among them, the battery module is also composed of multiple single cells connected in series and parallel. At present, with the development of electric vehicles and the needs of people's life and work, power battery packs usually must have high-rate, safe and efficient charging and discharging performance. When the power battery is charged or discharged at a high rate, a large amount of heat will be generated, causing the temperature of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M50/204H01M50/244H01M50/249H01M50/233H01M50/258H01M10/613H01M10/617H01M10/625H01M10/6556H01M10/6567
CPCH01M10/613H01M10/617H01M10/625H01M10/6556H01M10/6567H01M50/20Y02E60/10
Inventor 匡勇王文露张勇张蒙阳
Owner 开沃新能源汽车集团股份有限公司
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