Heat exchange structure of power battery box

Abstract

The invention relates to a heat exchange structure of a power battery box, wherein a temperature monitoring element is arranged in a battery module of a battery pack; the battery pack is erected in the middle of a battery box; a top space, a bottom space and a side surface space are respectively positioned between the upper surface, the lower surface and the side surface of the battery pack and the top, the bottom and the side surface of the battery box; a heating element is arranged in the battery box; a first air door and a second air door are arranged on the battery box; an air driving element is arranged in the battery box towards the second air door and at an acute angle with the second air door; and a control unit is electrically connected with the first air door, the second air door, the air driving element, the heating element and the temperature monitoring element. The invention has ingenious design, simple structure, low cost, convenient operation and both cooling and heating, thereby solving the problem of heat management of the battery box of an all-electric hybrid power vehicle, meeting the strict requirements of a battery on working temperature, enhancing the property of the battery and being suitable for large-scaled popularization and application.

Description

technical field [0001] The present invention relates to the technical field of power battery devices, in particular to the technical field of power battery box structure, and specifically refers to a power battery box heat exchange structure, which is suitable for the thermal management of battery packs of pure electric or hybrid vehicles, and is especially suitable for horizontal arrangement thermal management of the battery pack. Background technique [0002] Electric vehicles and hybrid vehicles using secondary batteries as vehicle energy have become one of the important measures to get rid of dependence on oil, reduce pollutant emissions, and achieve sustainable development. At present, nickel-metal hydride batteries (Ni-MH) are mainly used in hybrid vehicles, while lithium-ion (Li-ion) batteries, especially lithium iron phosphate batteries (LiFePO 4 ) and polymer lithium-ion (Lithiumion polymer) batteries are mainly used in pure electric vehicles. [0003] In order to...

AI Technical Summary

Problems solved by technology

Of course, the disadvantage is that the load on the air conditioning system is increased, but this is much more economical and compact than adding an air conditioning and filtration system to the battery box separately

[0006] At present, there are many patents on thermal management of battery boxes, but most of them have many disadvantages and cannot be practically used in engineering. There are several reasons

One is that too many components are used, which makes the battery box bulky and heavy, which cannot be realized in vehicles, especially small cars and mini-cars; the other is that the heating requirements are not considered, which is necessary for electric vehicles to work normally in severe cold environments ; The third is that the system is complex and does not meet the requirements of low-cost, easy-to-manufacture, and high-reliability automotive engineering

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