Heat dissipation device of new energy automobile battery and heat dissipation method thereof

Abstract

The invention discloses a heat dissipation device of a new energy automobile battery and a heat dissipation method thereof. The heat dissipation device comprises a bottom plate, wherein a fixing mechanism is arranged on the upper surface of the bottom plate, a shell mechanism is arranged at the top end of a fixing frame, water cooling mechanisms are arranged on one side and an inner cavity of the shell mechanism, protection mechanisms are arranged on the two sides of a battery cell body, a positioning mechanism is arranged at the bottom part of the battery cell body, a plurality of air cooling mechanisms are arranged in an inner cavity of the fixing frame, fixing plates are arranged on the two sides of each air cooling mechanism, and three fixing bolts are arranged on the two sides of the upper surface of the bottom plate. According to the invention, the arrangement mode that the water cooling mechanism and the air cooling mechanism are matched with each other is utilized, so that cold water in the cooling pipe flows downwards and circulates among the battery cell bodies to facilitate heat dissipation of the automobile battery, and air is blown upwards to the battery cell bodies through fan blades to enable hot air to be dissipated upwards from a heat dissipation net; and the water cooling mechanism and the air cooling mechanism can be conveniently matched for heat dissipation in severe weather, so that the heat dissipation efficiency of the battery is higher.

Description

technical field [0001] The invention relates to the field of automobile batteries, in particular to a heat dissipation device for a new energy automobile battery and a heat dissipation method thereof. Background technique [0002] With the development of modern new energy vehicles, people's requirements for the use of new energy vehicles are also increasing. Although new energy vehicles do not have engines, all vehicles will generate heat during driving. It will also generate heat, which is different from the place where traditional fuel vehicles generate heat. The heat generated by new energy vehicles comes from the power battery. The power battery has a large working current, resulting in high heat. It will cause the temperature of the battery to rise, and the temperature of the car battery is too high or too low will accelerate the decay of battery life. [0003] At present, the heat dissipation of most heart energy car batteries is water cooling, which is to absorb the ...

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Problems solved by technology

[0002] With the development of modern new energy vehicles, people's requirements for the use of new energy vehicles are also increasing. Although new energy vehicles do not have engines, all vehicles will generate heat during driving. It will also generate heat, which is different from the place where traditional fuel vehicles generate heat. The heat generated by new energy vehicles comes from the power battery. The power battery has a large working current, resulting in high heat. It will cause the temperature of the battery to rise, and the temperature of the car battery is too high or too low will accelerate the decay of battery life

[0003] At present, the heat dissipation of most heart energy car batteries is water cooling, which is to absorb the heat generated by the battery cells through the strong specific heat capacity of the coolant, so that the entire battery pack can operate at a safe temperature. However, in the existing environment, due to There will be freezing in winter and hot weather in summer, which will affect the temperature of the water in the cooling pipe, causing the cooling liquid to freeze or the water temperature to be too high, resulting in low efficiency of using water cooling alone and affecting the overall fan blade effect

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