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Two-phase immersed cooling system with multiple modules sharing one condensation cavity for battery cooling

A cooling system and battery module technology, which is applied in the direction of secondary batteries, circuits, electrical components, etc., can solve problems such as the lack of popularization and use of refrigerants, and the difficulty in designing uniform temperature for battery evaporators, so as to enhance heat extraction capacity and suppress Combustion and explosion, low energy consumption effect

Pending Publication Date: 2020-10-16
DALIAN UNIV OF TECH
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Problems solved by technology

However, it is very difficult to design the uniform temperature of the battery evaporator, so the refrigerant direct cooling heat dissipation method has not been widely promoted and used.

Method used

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  • Two-phase immersed cooling system with multiple modules sharing one condensation cavity for battery cooling

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Embodiment Construction

[0028] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings and technical solutions.

[0029] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. However, it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention, rather than limiting the claims of the present invention.

[0030] The invention discloses a two-phase submerged cooling system in which multiple modules share one condensation chamber for battery pack cooling, comprising: a fluorinated liquid circulation module, a sensor module and a cooling module.

[0031] The fluorinated liquid circulation module includes: a box body 1, a condensation chamber 7, a liquid storage tank 6 and an electronic valve 5 for the circulation of the fluorinated liquid,...

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Abstract

The invention belongs to the technical field of power batteries, and provides a two-phase immersed cooling system with multiple modules sharing one condensation cavity for battery cooling. The heat generated by the battery in the working process is taken away by vaporization of the fluorinated liquid on the surface of the working medium, the vaporized fluorinated liquid is condensed in the heat exchanger, and the heat released by condensation is directly absorbed by the cooling working medium in the cooling pipeline, so the highest temperature of the battery module and the temperature difference between different battery monomers are effectively controlled. Compared with the conventional air cooling, liquid cooling, refrigerant direct cooling and other cooling modes, the method has the following advantages that the used fluorination liquid has good dielectric properties, and battery short circuit cannot be caused; the fluorination liquid is in direct contact with the surface of the battery, so the heating capacity is high and no contact thermal resistance exists; the used fluorination liquid has flame retardancy, and can effectively inhibit the ignition and explosion of the batteryunder extreme conditions; the phase change of the fluorinated liquid is fully utilized, the heat dissipation efficiency is high, and the energy consumption is low.

Description

technical field [0001] The invention belongs to the technical field of power batteries, in particular to a two-phase immersion cooling system in which multiple modules for battery pack cooling share a condensation chamber. Background technique [0002] In recent years, environmental pollution and energy shortages have increasingly become challenges faced by all countries. Under this severe pressure, new energy vehicles have received strong support from the state. At present, many car manufacturers have shifted their attention to green and environmentally friendly new energy electric vehicles. Among them, the battery is the most important component of an electric vehicle, and its performance is largely affected by temperature, so it is very important to keep the battery temperature at an optimal temperature condition. [0003] An effective battery thermal management system can ensure that the battery works within a reasonable temperature range and keep the temperature differ...

Claims

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Application Information

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IPC IPC(8): H01M10/613H01M10/48H01M10/625H01M10/6563H01M10/6567H01M10/6568H01M10/6569
CPCH01M10/613H01M10/625H01M10/6569H01M10/6567H01M10/6563H01M10/486H01M10/6568Y02E60/10
Inventor 李羽白李洋
Owner DALIAN UNIV OF TECH
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