Rapid cooling device for power battery

Abstract

The invention discloses a rapid cooling device for a power battery. A plurality of refrigerant tubes (6) are distributed on the surface of the battery mounting base (5) of a micro-channel heat exchanger (1), counter bores (10) are arranged, at two ends of a partition bar (9) between every two adjacent refrigerant tubes (6), at the left side and the right side of the battery mounting base (5), twoends of every refrigerant tube (6) respectively communicate with two busways (7), the front side busway (7) is connected with steam inlet and outlet tubes (8), a protection plate (2) is arranged at the bottom of the micro-channel heat exchanger (1), positioning holes (11) correspond to the counter bores (10), the protection plate (2) separates the bottom of the micro-channel heat exchanger (1) from the bottom of a battery box (4), a thermal conduction silicone pad (13) is arranged on every refrigerant tube (6), an insulating partition plate (14) is adhered to every partition bar (9), and a rubber hose (15) is connected to every steam inlet and outlet tube (8).

Description

technical field [0001] The invention relates to a fast cooling device for a power battery. Background technique [0002] Since 2014, the sales of new energy vehicles in my country have continued to increase, and the support of national new energy industry policies has continued to increase. New energy vehicles have ushered in broad development prospects. The development of new energy vehicles will inevitably vigorously promote the technological innovation of the power supply system, focus on overcoming the safety, reliability research and lightweight modular design of the power supply system, and promote the standardization and serialization of power batteries and related spare parts and assemblies. The high-energy power battery used in electric vehicles has a maximum current of 200-400 A in actual road operation applications. Frequent charging and discharging during driving will generate huge heat. If the heat accumulated in the battery box cannot be dissipated in time, it ...

AI Technical Summary

Problems solved by technology

In the same battery box, if the heat dissipation of the batteries is uneven, it will cause uneven temperature among different individual batteries, which will cause individual batteries to be charged and discharged in a high-temperature environment for a long time, and their energy will be consumed rapidly, causing individual batteries to fail early, thus Shorten the service life of the entire power system, and in serious cases, it will cause the failure of individual batteries or even the risk of fire and explosion

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