Distributed cooling system

Abstract

The invention discloses a distributed cooling system, comprising a battery box body, wherein battery cores are arranged in the battery box body; a plurality of the battery cores forms a set of batterymodule; more than one set of battery module is mounted in the battery box body; each set of battery module corresponds to a fan or a group of fans; the wind strength of each fan or each group of fanscan be independently adjusted; a temperature feedback device and a fan control device are arranged in the battery box body; the temperature feedback device is connected with and measures the temperature of battery cores in the battery modules, and feeds back signals to the fan control device; and the fan control device is connected with and adjusts the wind strength of the fans of corresponding battery modules so as to allow the temperature of each battery module to be more uniform, and so the target of unified temperature control of each battery module in the battery box body is achieved.

Description

technical field [0001] The invention relates to the field of heat dissipation of battery systems, in particular to a distributed cooling system. Background technique [0002] With the development of electric vehicle technology, batteries have been widely used in vehicles. Vehicles often need to be able to operate in a temperature range of -20 degrees to 60 degrees, and current battery technology is often unable to meet such a wide operating temperature range. Therefore, it is necessary to heat the battery at low temperature and cool the battery at high temperature to ensure that the battery works within its suitable working range. [0003] In terms of heat dissipation, the battery cooling method currently used in electric vehicles is generally air-cooled. The usual method is to install a large-power fan on one side of the chassis to use the fan to dissipate the heat of the battery to the outside of the battery box. The disadvantage of this device is that although the fan T...

AI Technical Summary

Problems solved by technology

[0003] In terms of heat dissipation, the battery cooling method currently used in electric vehicles is generally air-cooled. The usual method is to install a large-power fan on one side of the chassis to use the fan to dissipate the heat of the battery to the outside of the battery box. The disadvantage of this device is that although the fan The power is large, and the air volume generated is also large, but due to the different positions of the cells, the distance of the air duct is different, so the air volume obtained by the cells in different positions is not uniform, resulting in the heat of some cells being taken away quickly. The heat of other cells is still high, which has an adverse effect on the balance and consistency of the battery system, and the heat dissipation efficiency is also low

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