Liquid cooling heat management device for power battery pack of vehicle

A power battery pack and management device technology, applied in battery/fuel cell control devices, secondary batteries, transportation and packaging, etc., can solve problems such as low cooling efficiency, small heat transfer coefficient, and reduced efficiency and reliability of battery packs , to achieve the effect of improving compactness and enhancing heat transfer

Pending Publication Date: 2019-04-09
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the traditional battery pack air-cooled radiator has defects
The traditional air-cooling method achieves heat exchange through convection with the surface of the battery. The heat transfer coefficient is small, and it is limited by the heat exchange area of ​​the battery pack, resulting in low cooling efficiency.
In addit

Method used

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  • Liquid cooling heat management device for power battery pack of vehicle
  • Liquid cooling heat management device for power battery pack of vehicle
  • Liquid cooling heat management device for power battery pack of vehicle

Examples

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Example Embodiment

[0018] See Figure 1 to Figure 5 As shown, the present invention discloses a liquid cooling and heat management device for a vehicle power battery pack, including a plate-shaped cooling liquid distributor 3, a plurality of liquid cooling plates 2, a battery pack 1; one end of the liquid cooling plate 2 A liquid inlet 4 and a liquid outlet 5 are provided. A channel 6 is provided inside the liquid cooling plate. One end of the channel 6 is connected to the liquid inlet 4 and the other end is connected to the liquid outlet 5; The channel 6 selects one of a rectangular direct flow channel, a rectangular S flow channel, a circular flow channel, a Z-shaped flow channel, a mosaic flow channel, and a double-layer flow channel. The more complicated channel 6 enables the cooling liquid in the channel 6 to flow through more area and absorb more heat.

[0019] The upper part of the inner surface of the cooling liquid distributor is provided with a row of cooling liquid distribution outlets ...

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PUM

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Abstract

The invention discloses a liquid cooling heat management device for a power battery pack of a vehicle. The device comprises a cooling liquid distributor, a plurality of liquid cooling plates and the battery pack; channels are formed in the liquid cooling plates; a liquid inlet and a liquid outlet are formed at the same time; and the battery pack is located between the two adjacent liquid cooling plates. The channels in the liquid cooling plates can be set according to a heat generating characteristic and temperature distribution of a power battery individual during working, so that heat generated during charging and discharging of the power battery pack of the new energy vehicle can be taken away efficiently; batteries can be heated by introducing a heat fluid into a heat management structure under the condition that heating is needed, so that the battery of the electric vehicle can work at a proper working temperature for a long time; and meanwhile, due to the fact that the liquid cooling capacity is strong, a reasonable cooling plate internal channel structure can be arranged as needed to reinforce heat transfer, so that the compactness of the battery pack can be improved.

Description

technical field [0001] The invention belongs to radiators for electronic appliances, in particular to a liquid cooling heat management device for a power battery pack for vehicles. Background technique [0002] The battery pack is one of the core components of pure electric vehicles and hybrid vehicles. Its performance directly affects the performance of the vehicle, and the performance and life of the battery are closely related to its working temperature. The battery pack will generate heat during charging and discharging, which will increase the overall temperature of the battery pack. Excessive temperature will seriously affect the performance and life of the battery pack. When the ambient temperature is very low, the battery needs to be heated to improve its charging and discharging efficiency. Therefore, effective thermal management of the battery pack to maintain its working temperature within a better temperature range plays a decisive role in improving the performa...

Claims

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Application Information

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IPC IPC(8): H01M10/613H01M10/615H01M10/617H01M10/625H01M10/6567H01M10/635B60L58/24
CPCH01M10/613H01M10/615H01M10/617H01M10/625H01M10/635H01M10/6567Y02E60/10Y02T10/70
Inventor 马哲树
Owner NANJING FORESTRY UNIV
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