High-efficiency low temperature difference integrated liquid-cooled battery system

A liquid-cooled battery and low-temperature technology, which is applied to secondary batteries, battery/fuel cell control devices, circuits, etc., can solve the problems of large temperature differences of battery cores, heat consumption, long circulating water path, etc., and improve charge and discharge performance and service life, slowing down differential changes, and reducing the effect of temperature variance

Active Publication Date: 2021-04-20
芜湖奇达动力电池系统有限公司
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  • Abstract
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Problems solved by technology

The entire system has a long circulating waterway, consumes a lot of ineffective heat, and has a low utilization rate of electric energy; especially when heating for a short time, the heat utilization rate is even lower
[0004] The temperature distribution of the liquid cooling system in the prior art is fixed, but there is still the problem that the temperature of the high-temperature battery cells is always high, and the temperature of the low-temperature battery cells is always low, resulting in the battery cells inside the battery module. Temperature variability will increase and consistency will decrease

Method used

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Embodiment Construction

[0024] The specific embodiment of the present invention will be described in further detail by describing the embodiments below with reference to the accompanying drawings, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and contribute to its implementation.

[0025] Such as Figure 1 to Figure 3 As shown, the present invention provides a high-efficiency low-temperature difference integrated liquid-cooled battery system, which includes a housing, a battery module set in the housing, a radiator 13, a liquid cooling battery set in the housing and in contact with the battery module. The cooling integrated device 8 and the circulation pump 11 connected with the liquid cooling integrated device 8 and used to change the flow direction of the cooling liquid flowing in the liquid cooling integrated device 8 .

[0026] Specifically, as figure 1 and figure 2 ...

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Abstract

The invention discloses a high-efficiency low-temperature differential integrated liquid-cooled battery system, which includes a casing, a battery module set in the casing, a liquid-cooled integrated device set in the casing and in contact with the battery module, and a liquid-cooled battery system. The integrated device is connected to a circulation pump used to change the flow direction of the cooling liquid flowing in the liquid-cooled integrated device 8 . The high-efficiency low-temperature difference integrated liquid-cooled battery system of the present invention slows down the differential change of the battery, reduces the temperature difference of the internal cells of the battery module, makes the temperature consistency of the internal cells of the module high, and improves the charging and discharging performance and use of the battery. life.

Description

technical field [0001] The invention belongs to the technical field of thermal management of new energy power batteries. Specifically, the invention relates to a high-efficiency low-temperature difference integrated liquid-cooled battery system suitable for new energy vehicles. Background technique [0002] Under the pressure of energy shortage and environmental pollution, energy conservation and environmental protection have become the consensus of the whole society. Due to its obvious advantages in energy saving and emission reduction, electric vehicles have attracted attention both at home and abroad. The key to the development of electric vehicles is the power battery, and the electrochemical performance and cycle life of most batteries are significantly affected by temperature. Too high or too low temperature is not conducive to the performance of the battery. If the temperature is too high, the battery is prone to safety problems such as overheating, burning, and expl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/613H01M10/625H01M10/6567H01M10/6568B60L58/24
CPCH01M10/613H01M10/625H01M10/6567H01M10/6568Y02E60/10Y02T10/70
Inventor 杨东肖峰王磊杨春
Owner 芜湖奇达动力电池系统有限公司
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