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Hybrid cooling type power battery pack

A power battery pack and heat dissipation technology, which is applied in the direction of secondary batteries, circuits, electrical components, etc., can solve the problems of battery pack weight and cost increase, uneven temperature distribution of the battery pack, and complex internal structure of the battery pack, etc. Minimize the problem of uneven temperature distribution, improve the cooling effect, and ensure the effect of temperature consistency

Active Publication Date: 2016-11-16
HEFEI GUOXUAN HIGH TECH POWER ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In most cases, the simple forced air cooling will cause the battery temperature at the air inlet of the battery pack to be low and the temperature at the outlet of the battery pack to be high due to the position of the battery in the battery pack, that is, the temperature distribution in the battery pack is uneven. , thereby affecting the consistency of the battery
However, if the liquid cooling method is simply used, although the cooling effect is better, the internal structure of the battery pack is complicated, which will increase the weight and cost of the battery pack.

Method used

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings.

[0023] Such as figure 1 , 2 . As shown in .3, a hybrid heat dissipation power battery pack includes a battery module 2 arranged in a box body 1, and a water tank 3 is provided at the bottom of the box body 1, and is tiled between the battery module 2 and the water tank 3 There is a first heat-conducting silica gel sheet 8; air inlets 5 and air outlets 6 are respectively provided at both ends of the box body 1; a second heat-conducting silica gel sheet is provided between two adjacent single cells 10 in the battery module 2 9.

[0024] In a further solution, the inside of the box body 1 is divided into two rectangular cavities, and the battery modules 2 are arranged at intervals along the diagonal of the length direction of the rectangular cavities to form a stepped stru...

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Abstract

The invention discloses a hybrid cooling type power battery pack, which comprises a battery module arranged in a box body, wherein a water channel is arranged in the bottom part of the box body; a first heat-conducting silicone sheet is tiled between the battery module and the water channel; an air inlet and an air outlet are formed in two ends of the box body respectively; and a second heat-conducting silicone sheet is arranged between two adjacent single batteries in the battery module. Air convection is formed through the air inlet and the air outlet and the heat-conducting silicone sheets and circulating water are used for cooling, so that the cooling speed is improved; and the temperature uniformity of various parts in the battery pack is ensured.

Description

technical field [0001] The invention relates to a power battery, in particular to a hybrid heat dissipation power battery pack for an electric vehicle. Background technique [0002] The power battery pack for electric vehicles is based on the load requirements of electric vehicles. A certain number of single batteries are connected in series and parallel to form a battery module; and then a certain number of battery modules are connected in series and parallel to form a certain capacity and voltage. The battery pack; finally, the battery pack is placed in a closed space to form a power battery pack. [0003] Because the battery pack will generate a lot of heat during charging and discharging, and the heat distribution inside the battery pack is uneven, if the heat in the battery pack cannot be drawn out in time, it will affect the consistency of the single cells in the battery pack, making the The performance and life of the battery will decrease; in serious cases, accide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/625H01M10/6567H01M10/6555
CPCH01M10/613H01M10/625H01M10/6555H01M10/6567Y02E60/10
Inventor 方宜王丰温建峰武行兵
Owner HEFEI GUOXUAN HIGH TECH POWER ENERGY
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