Lithium battery pack assembly

Abstract

The invention discloses a lithium battery pack assembly and aims to solve the temperature rise problem of existing batteries. The lithium battery pack assembly comprises battery cores, uniform temperature components and a shell, the battery cores and the uniform temperature components are stacked at intervals, each uniform temperature component comprises a left shell, a right shell, a liquid guide piece, a liquid incoming pipe and a liquid outgoing pipe, each left shell and the corresponding right shell are of a symmetric structure, a cavity inside each liquid guide piece serves as a cooling liquid passage, the edge of each liquid guide piece is embedded in a joint of the corresponding left shell and the corresponding right shell, a polyvinyl adhesive groove is formed around the liquid guide piece to form an adhesive joint, uniform temperature fields are formed between two sides of each liquid guide piece and the corresponding left shell as well as the corresponding right shell respectively, turbulence holes are formed in two side faces of each liquid guide piece, and each shell and the corresponding liquid guide piece are connected through four liquid outgoing pipes and one liquid incoming pipe to form a cooling medium flowing passage. By using the lithium battery pack assembly, flowing speed of a cooling medium in the uniform temperature components can be controlled to achieve the objective of controlling inside temperature of the battery cores.

Description

technical field [0001] The invention relates to the technical field of new energy lithium battery pack assembly, specifically a lithium battery pack assembly with better temperature control effect. Background technique [0002] The lithium battery pack assembly is the core component of the electric vehicle, and its performance directly affects the performance of the electric vehicle. The lithium battery pack assembly is generally large in size and occupies the position of the chassis of the vehicle, and its heat dissipation effect is poor. [0003] Today's batteries are generally cooled by natural cooling, air cooling or water cooling. Since the lithium battery pack assembly is generally a lithium battery, taking a lithium battery as an example, the best internal charge and discharge temperature cannot be higher than 140°C, and the external The temperature should not be higher than 80°C, otherwise the service life and charging and discharging effect of the battery will be re...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the deficiencies of the prior art, the present invention provides a lithium battery pack assembly, which is used for temperature control of the lithium battery pack assembly, especially for cooling the main surface, and solves the problems caused by the temperature rise of the lithium battery pack assembly. Reduced lifespan, explosion, etc.

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