Oil-cooled battery pack

Abstract

The invention provides an oil-cooled battery pack, which comprises an upper cover, a box body and a battery pack module, wherein a functional interface cavity which protrudes outwards is arranged in the upper end part of one end of the box body; the bottom of the functional interface cavity inclines upwards at a certain angle, a positive output terminal, a negative output terminal and at least one communication connection terminal are arranged at the bottom of the functional interface cavity; cooling fins are arranged at two sides of the box body; at least one oil outlet is arranged in the position, close to the bottom, of the side surface of the box body; a heat conducting sheet is arranged at the inner side of the upper cover; radiating ribs are arranged at the outer side of the upper cover; at least one water-blocking exhaust valve and at least one oil filler are arranged in the upper cover; the battery pack module is arranged in the box body; an oily liquid is arranged in the box body; the battery pack module is completely immersed by the oily liquid and the oily liquid is in contact with the heat conducting sheet at the inner side of the upper cover; and the upper cover and the box body are mutually matched and sealed together. The oil-cooled battery pack is simple in structure, novel in arrangement, convenient to install and good in heat dissipation effect.

Description

technical field [0001] The invention relates to a battery pack, in particular to an oil-cooled battery pack. Background technique [0002] As the use of battery packs becomes more and more widespread, the existing air-cooled battery packs have long air-cooled flow channels and difficult to balance the internal flow field, resulting in differences in cooling effects in different areas, large temperature differences in batteries, inability to waterproof and dustproof, and volume Large (as long as the volume occupied by the fan and air duct), high cost and other issues can no longer fully meet the market requirements. For some airtight conditions, such as cruise ships, yachts, and cars, due to poor ventilation, if air cooling is used to dissipate heat, it is difficult to lower the temperature of the battery pack, which will affect the service life of the battery pack and cause use costs. higher. Aiming at the deficiency of the above-mentioned air-cooled battery pack, battery ...

AI Technical Summary

Problems solved by technology

[0002] As the use of battery packs becomes more and more widespread, the existing air-cooled battery packs have long air-cooled flow channels and difficult to balance the internal flow field, resulting in differences in cooling effects in different areas, large temperature differences in batteries, inability to waterproof and dustproof, and volume Large (as long as the volume occupied by the fan and air duct), high cost, etc., can no longer fully meet the market requirements

For some airtight conditions, such as cruise ships, yachts, and cars, due to poor ventilation, if air cooling is used to dissipate heat, it is difficult to lower the temperature of the battery pack, which will affect the service life of the battery pack and cause use costs. higher

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