Thermal management system for jet-absorption thermodynamic cycle battery and working method of thermal management system

A technology of battery thermal management and thermal cycle, which is applied to the isolation of batteries from their environment, secondary batteries, battery pack components, etc., to achieve the effects of saving large power consumption, excellent temperature control effect, and efficient heat exchange effect

Active Publication Date: 2019-08-23
XI AN JIAOTONG UNIV
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  • Abstract
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Problems solved by technology

The current phase change material cooling method is mainly based on solid materials, such as paraffin-graphite composite materials, but this method only absorbs h

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  • Thermal management system for jet-absorption thermodynamic cycle battery and working method of thermal management system

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[0020] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0021] refer to figure 1, the injection-absorption thermal cycle battery thermal management system of the present invention includes a heat exchanger 8, a battery packaging box 1, a first reversing valve 13, a second reversing valve 15, a third reversing valve 16, and a fourth reversing valve 16. Directional valve 17, fifth reversing valve 5, sixth reversing valve 9, injector 14, first circulating pump 7, second circulating pump 11, first throttle valve 6 and second throttle valve 10; the The first reversing valve 13, the injector 14, the second reversing valve 15, the third reversing valve 16, the fourth reversing valve 17, the fifth reversing valve 5 and the sixth reversing valve 9 are all two-position three The liquid inlet of the heat exchanger 8 is communicated with the B-position connection port of the first reversing valve 13, and the C-position connection por...

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Abstract

The invention discloses a thermal management system for a jet-absorption thermodynamic cycle battery and a working method of the thermal management system. The system comprises a heat exchanger, a battery packaging box, a first reversing valve, a second reversing valve, a third reversing valve, a fourth reversing valve, a fifth reversing valve, a sixth reversing valve, an ejector, a first circulating pump, a second circulating pump, a first throttling valve and a second throttling valve. The system and the working method can enable the temperature of the battery to be stably and evenly kept near the boiling point of a working medium.

Description

technical field [0001] The invention belongs to the technical field of battery temperature control, and relates to a spray-absorption thermal cycle battery heat management system and a working method thereof. Background technique [0002] In recent years, secondary batteries represented by lithium batteries have been widely used in the fields of transportation and large-scale energy storage, accompanied by thermal management problems that frequently cause serious accidents. A lot of heat will be generated during the charging and discharging of lithium batteries. In addition, in practical applications, the batteries do not exist in the form of monomers, but are connected in series / parallel to form battery packs, sometimes in sealed devices. If the heat generated cannot Timely and effective discharge, excessive accumulation will cause the battery temperature to exceed the reasonable range, seriously deteriorating the working performance of the battery. When the temperature is...

Claims

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Application Information

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IPC IPC(8): H01M2/10H01M10/613H01M10/615H01M10/6551H01M10/6569
CPCH01M10/613H01M10/615H01M10/6551H01M10/6569H01M50/20H01M50/24Y02E60/10
Inventor 张兄文张强彭年
Owner XI AN JIAOTONG UNIV
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