Heat dissipating structure of cylindrical battery module

Abstract

The invention relates to a heat dissipating structure of a cylindrical battery module. The heat dissipating structure comprises a fixing bracket, batteries and a busbar, wherein the batteries are mounted on the fixing bracket and are distributed in parallel, and the busbar is integrated into the fixing bracket; the fixing bracket is made from heat-conducting plastics, and a heat conducting block structure is formed, so that two poles of each battery are fixedly arranged in a heat conducting block separately; the busbar is of a heat conductor, and the heat conductor is embedded in the heat conducting block. According to the heat dissipating structure, a battery mounting bracket is made from a heat conducting material, so that the batteries have a sufficient heat dissipating area, and the heat dissipating efficiency is relatively high; the metallic busbar inside the battery bracket is also used for conducting heat, and the overall temperature difference of the battery bracket can be controlled while heat is transferred rapidly due to the high heat conductivity of the battery bracket, so that the concentration of heat cannot be caused; a liquid cooling plate is additionally arranged outside the battery module, so that the heat dissipating effect is improved.

Description

technical field [0001] The invention relates to a cylindrical battery module, in particular to a heat dissipation structure of the cylindrical battery module. Background technique [0002] There are three main heat dissipation methods for existing cylindrical battery modules: natural cooling, air cooling and water cooling. [0003] Among them, the design of relying on natural cooling to dissipate heat generally does not have a special cooling mechanism, and only relies on direct heat exchange between the battery cell and the air. For example, a battery module disclosed in the CN203660020U authorized announcement document, its two-layer support plate The cavity is divided into an upper heat dissipation chamber, a middle chamber and a lower heat dissipation chamber. There are connecting pieces connected between the battery cells, and a number of heat dissipation ventilation pipes are vertically arranged between the battery cells. The heat dissipation ventilation pipes are conn...

AI Technical Summary

Problems solved by technology

However, the heat sink and elastic heat conduction fins of this structure are arranged between the cylindrical single cells, and there are high requirements for the shape of the heat sink and elastic heat conduction fins, which causes problems such as complex structure and difficult manufacture, which is not conducive to popularization and use.

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