Novel cooling fin runner structure

Abstract

The invention relates to cooling devices, in particular to a novel cooling fin runner structure. The runner structure is divided into at least two runner parts in the length direction, intervals between fins in the runner part close to an air inlet are larger, and therefore the flow resistance of the runner part at the air inlet is reduced, and under the situation that the fan power is not changed, the supply air rate and the air speed in the whole fin runner can be effectively increased relative to an original runner structure; meanwhile, due to the fact that the closer the fins in the runner part are to the air outlet of the runner structure, the smaller the intervals of the fins are, the number of the fins is relatively large, and relative to the runner part at the air inlet, the contact surface of the runner fins with cooling air is increased, and the cooling effect is further enhanced. By means of the structure, under the situation that the fan power is not changed, the highest temperature (generally, a heating device close to the air outlet of the fin runner will have the highest temperature) of the heating device can be effectively reduced.

Description

technical field [0001] The invention relates to a heat dissipation device, in particular to a novel flow channel structure of heat dissipation fins. Background technique [0002] Due to the limitation of the whole machine structure layout of some equipment (such as phased array radar), in order to meet the heat dissipation requirements of the heating device and the space structure of the whole machine at the same time, it is often necessary to use rectangular fins with air inlets and air outlets on both ends. In the specific application, the rectangular fin flow channel is set in parallel contact with the heating device, and a fan is installed at the air outlet of the rectangular fin flow channel, so that the cooling air enters from the air inlet and passes through the rectangular fin flow channel. The cooling air will take away the heat of the heating device located on the heat-conducting contact surface, but this rectangular flow channel has the following disadvantages co...

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Problems solved by technology

[0003] The purpose of the present invention is to aim at the long rectangular fin flow channel, because the air flow through the fin is long and the flow resistance is relatively large, so the wind speed and air volume of the cooling air passing through the fin flow channel are greatly reduced, resulting in The temperature uniformity of the entire fin channel is poor, and the heat dissipation effect of the heating device near the air outlet of the cooling fin channel is not good. A fin channel structure with small flow resistance and good temperature uniformity of the channel is provided.

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