Lithium core battery pack with strong heat dissipation

Abstract

The invention discloses a lithium core battery pack with strong heat dissipation. The lithium core battery pack comprises a lithium core fixing seat and lithium core units mounted inside the lithium core fixing seat, wherein the upper part of the lithium core fixing seat is integrally provided with a plurality of lithium core installation slots, a heat dissipation air duct is arranged between thelithium core mounting slots, the lithium core mounting slots are filled with the lithium core units, a fan is arranged at the bottom of the lithium core fixing seat through a bracket, and a cover plate is arranged at the top of the lithium core mounting slots. A first spring and a second spring can be used for buffering when the lithium core units vibrate, and automatically expand and contract toensure the electrical conductivity of the lithium core units, and the fan can force air convection in the heat dissipation air duct, so as to bring out heat generated by the lithium core units to achieve heat dissipation, and guarantee the uniform temperature field of the lithium core units, and the heat dissipation efficiency can be improved by a heat dissipation groove.

Description

technical field [0001] The invention belongs to the technical field of lithium batteries, and in particular relates to a lithium cell battery pack with strong heat dissipation. Background technique [0002] With the continuous development of battery packs, especially lithium battery packs are more and more widely used for multiple purposes, the need for safe battery packs that maintain high energy for a long time is becoming more and more important. [0003] For this reason, the patent application number is CN201620057842.5, which discloses a safe heat dissipation lithium battery pack, which includes more than two lithium batteries located in the box, and the lithium batteries are separated and fixed by sponge double-sided adhesive tape. The top of the box is a PCB board, and the electrodes of the lithium battery are connected to the PCB board through wires. One side of the lithium battery is provided with a longitudinal cooling air duct, and the upper and lower ends of the ...

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Problems solved by technology

[0004] However, the above solution has the following defects in use: the lithium battery is affected by vibration after long-term use, and the connection between the electrodes at the upper and lower ends of the lithium battery is easy to loose, which is likely to cause poor contact. In addition, the above solution is only on one side of the lithium battery. There is a heat dissipation air duct. This heat dissipation method has certain limitations when multiple sets of lithium batteries are used in series / parallel at the same time. It is not conducive to maintaining the uniform and stable temperature field of the battery pack as a whole, and it is easy to cause local overheating, which is not conducive to battery life. use

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