Heat dissipation plate of inverter unit fluid radiator

Abstract

The invention discloses a heat dissipation plate of an inverter unit fluid radiator. The heat dissipation plate comprises a bottom plate, a heat dissipation part arranged on the top surface of the bottom plate and at least one transversely arranged flow equalizing groove, the heat dissipation part comprises a plurality of longitudinally arranged fins, the flow equalizing groove transversely penetrates through the heat dissipation part, and the heat dissipation part is divided into a plurality of longitudinally separated heat dissipation areas. The flow equalizing groove of the heat dissipation plate eliminates the pressure difference between the fins and break the boundary layers on the surfaces of the fins, so that the flow speed of fluid between the fins is uniform, the difference of the heat dissipation capacity of all areas of the heat dissipation device is reduced, and the uniformity of the heat dissipation effect is good.

Description

technical field [0001] The invention relates to a radiator, in particular to a radiator plate for a fluid radiator of an inverter unit. Background technique [0002] The switching tube of the inverter is the heat-generating device of the inverter unit. With the increase of the power density of the inverter, the heat dissipation of the switching tube of the inverter unit is particularly important. The switching tube of the inverter unit usually adopts a fluid radiator for heat dissipation, and the fluid heat dissipation The heat sink of the radiator usually includes a base plate and a plurality of fins fixed on the base plate. [0003] For example, the utility model whose patent number is: CN201520828034.X discloses a fin-embedded friction welding heat sink, including a base plate and fins, and several slots are arranged on the base plate, because the fins are welded by friction welding embedded in the slot. The radiator of this utility model has the following disadvantages...

AI Technical Summary

Problems solved by technology

The radiator of this utility model has the following disadvantages: due to factors such as the position of the air inlet, local resistance, etc., even if the fin spacing is uniform, there are differences in flow velocity and pressure in the flow channels between different fins of the radiator; Differences lead to differences in the heat transfer efficiency of different fins, which limits the working capacity of the heating device; even if the flow rate of the flow channels between different fins is the same, when the air flows through the narrow and long flow channels between the fins, a boundary will be formed on the surface of the fins Layer, the deeper the flow channel, the thicker the boundary layer, the lower the flow velocity on the fin surface, and the worse the heat transfer efficiency

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