Wind-cooling and liquid-cooling integrated battery module

Abstract

The present invention provides a wind-cooling and liquid-cooling integrated battery module, which comprises a battery pack, a heat elimination apparatus and a circulating water pump, wherein the heat elimination apparatus is arranged on one side of the battery module and is provided for heat elimination on the battery pack, and the circulating water pump is arranged on the side surface of the battery pack and is provided for forming a water circulating circuit so as to perform heat elimination. According to the wind-cooling and liquid-cooling integrated battery module of the present invention, with the liquid circulating design, the temperature uniformity of each battery in the battery module under the complex working condition can be well ensured; the X-shaped heat elimination sheets are combined to form the mesh structure, such that the heat exchange between a lot of area of air and the heat elimination sheets in the case of the air forced convection is ensured so as to take away more heat; with the integrated design, the heat elimination system is independent, each module self-forms a heat elimination system, and the modules are connected only through the power line during the battery pack application, such that the failure rate is substantially reduced; and the maintenance is further convenient, wherein the fault module can be directly replaced without change of other device in the battery pack.

Description

technical field [0001] The invention relates to a battery module, in particular to a battery module integrating air cooling and liquid cooling. Background technique [0002] Under the current background of the development of new energy vehicles, most battery packs use air cooling and liquid cooling for heat dissipation, and the two heat dissipation methods are more common. [0003] Air-cooled heat dissipation is that air is used as the heat transfer medium, and the air is directly passed through the module to achieve the purpose of cooling and heating. Forced air cooling is to take away the heat of the battery through the exhaust fan through the wind generated by the movement. The structure is simple and the maintenance is simple and convenient. However, the disadvantages and deficiencies of air cooling are: poor heat dissipation effect, high requirements for air duct design and structural arrangement, and difficulty in ensuring module temperature consistency, especially fo...

AI Technical Summary

Problems solved by technology

However, the disadvantages and deficiencies of air cooling are: poor heat dissipation effect, high requirements for air duct design and structural arrangement, and difficulty in ensuring module temperature consistency, especially for batteries near the air outlet, heat will accumulate, although maintenance Simple, but not ideal cooling effect

However, the disadvantages and deficiencies of liquid cooling are: ideal heat dissipation effect, complex waterway design, especially the intricate waterway connection between modules in the battery box, and different fixing methods for different modules in the battery box. If the system is running at a lower level, the waterway connection between the modules has a large span, and the probability of liquid leakage also increases at the same time.

If some parts of the heat dissipation system are damaged during long-term use, the overall heat dissipation system needs to be disassembled, which is extremely inconvenient for maintenance

Images