Cooling fin, cooling module comprising the cooling fin and battery module comprising the same

Abstract

The invention provides a cooling fin that does not require flatness management (=straightness management) of a heat transfer portion during processing or assembling and that is suitable for dispersing the physical stress that occurs in response to the external environment, thereby minimizing deformation of the heat transfer portion, and a cooling structure comprising the cooling fin, and a battery module comprising the same. A cooling fin according to the present disclosure includes: a body having a rectangular shape; a first extension part protruding from an edge of an upper portion of the body and extending in one direction at a right angle with respect to the body; and a second extension part protruding from an edge of a lower portion of the body and extending in one direction in a step form with respect to the body, wherein the second extension part is divided into a plurality of slits.

Description

technical field [0001] The present invention relates to a cooling fin, a cooling module including the cooling fin and a battery module including the cooling module, the cooling fin does not require heat transfer parts contacting the surrounding structure during processing or assembly. Flatness management (ie, straightness management), and adapted to disperse physical stress occurring in response to the external environment, thereby minimizing deformation of the heat transfer portion. Background technique [0002] In recent years, vehicles are being manufactured based on research conducted to secure driving force using internal combustion engines and / or electric motors, thereby reducing air pollution from vehicle exhaust. Accordingly, vehicles have evolved in the order of hybrid vehicles, plug-in hybrid vehicles, and electric vehicles. In this case, hybrid vehicles and plug-in hybrid vehicles have an internal combustion engine, an electric motor, and a battery pack, and elec...

AI Technical Summary

Problems solved by technology

This influence from external factors exerts physical stress on the heat transfer part so that the heat transfer part cannot maintain a rectangular shape in a flat state and deforms some areas of the heat transfer part

[0005] When the cooling fins and cooling plates or boxes are combined with each other, this deformation of the heat transfer part forms a gap between the cooling fins and the cooling plate, because the gap corresponds to some areas of the heat transfer part, so this deformation prevents The heat of the battery cells is quickly transferred from the cooling fins to the cooling plate

Furthermore, due to the increase in volume of the battery cell during charging or discharging of the battery cell, the cooling fins exert physical stress on the area contacting the battery cell, thereby causing deformation of the heat transfer portion when the battery cell is being used

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