A power module heat sink

Abstract

The utility model belongs to power module technical field, concretely relates to a power module heat abstractor. It includes the casing, and the casing inside part is at least two layers, and each layer is provided with S type runner in the casing inside, and the adjacent layer S type runner is overlapped up and down, and the head and tail are connected to form the cooling runner, and the cooling runner both ends are formed with the liquid inlet and the liquid outlet on the casing respectively, the heat dissipation channel is set up between S type runner, and the heat dissipation channel is connected with the casing outside, and the air cooling module is set up in the casing bottom surface or top surface, is used for improving the air flow rate in the heat dissipation channel. The utility model is used to solve the problem of the poor heat dissipation effect of power module. The S type runner is set to be separated in the middle, forms the heat dissipation channel, uses the air cooling module to blow to the heat dissipation channel, drives the air flow rate in the heat dissipation channel, avoids the heat dissipation of the close continuous runner to be unable to paste position, and the S type runner is set to be multilayer, and the head and tail are communicated to form a complete cooling runner, so that the heat dissipation effect of the casing is better.

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