Lithium battery box with automatic heat dissipation

Abstract

The invention discloses a lithium battery box with automatic heat dissipation. The lithium battery box comprises a box body with an open upper end and a cover plate matched with the box body in a hinged manner, wherein a T-shaped blind hole is formed in the side wall of one end of the box body; a sliding block matched with the T-shaped blind hole is arranged in the T-shaped blind hole in a sliding manner; the cover plate consists of a supporting section and a clamping section; one end of the supporting section is hinged with the sliding block, and the other end of the supporting section is hinged with one end of the clamping section; a buckle is mounted at the end part of the other end of the clamping section through an elastic connecting piece; a clamping groove matched with the buckle is formed in the side wall of the box body; a battery pack is fixed in the box body; and a balance system is mounted on the battery pack. When the supporting section partially enters the T-shaped blind hole until the sliding block is in contact with the bottom of the T-shaped blind hole, the clamping section hinged with the end part of the supporting section is located at a vertical locating place converted from a horizontal locating place, namely the supporting section is in contact with the bottom surface of the clamping section mutually, so that normal connection between the cover plate and the box body is guaranteed, and optimal observation viewing angle can also be improved for operating personnel at the same time.

Description

technical field [0001] The invention relates to a battery pack of an electric vehicle, in particular to a lithium battery box with automatic heat dissipation. Background technique [0002] In order to protect the environment, energy conservation and environmental protection and the promotion and application of green energy have emerged in response to the situation. One of the ways to protect the environment is to expand the use of electric vehicles and reduce the use of fuel-efficient vehicles, but now electric vehicles have been in a downturn , The main bottleneck restricting the development of electric vehicles is the life of power batteries. Generally speaking, the battery box of an electric car needs 75 lithium-ion batteries in series to supply power to reach 200AH / 300V. Each lithium-ion battery is connected in series to form a battery pack. Because the aging degree of each lithium-ion battery in the battery pack is very different , in the process of charging the batter...

AI Technical Summary

Problems solved by technology

However, after the battery box is loaded with a battery pack, the space between the battery pack and the upper cover of the battery box is small, and the existing equalization system is generally large in size and cannot be placed inside the battery box. Therefore, the existing equalization system is generally placed in the battery box The exterior takes up a lot of space outside the car. Under the premise that the space of the car is so compact, the market is eager to place the equalization system inside the battery box without changing the size of the original battery box, so as to save the space of the car.

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