Heat radiating module

Abstract

The invention discloses a heat radiating module comprising a heat radiating base and a fan unit; the heat radiating base is provided with a base plate and a plurality of heat radiating fins, the base plate is provided with an air outlet in a penetrating manner, each heat radiating fin is arranged at the first side face of the base plate and is an arc-shaped heat radiating fin, and the second side face of the base plate can be combined with a heating unit; and the fan unit is rotatably arranged on the heat radiating base and is opposite to the air outlet. An air flow driving channel is formed between every two adjacent heat radiating fins, and each air flow driving channel is communicated with the air outlet respectively so that part of air flow is led to the air outlet to be exhausted after the air flow delivered through the fan unit enters each of the air flow driving channel, turbulent flow is reduced, the air cut noise is lowered, and the heat radiating efficiency is further increased.

Description

technical field [0001] The invention relates to a heat dissipation module, in particular to a heat dissipation module capable of reducing turbulence and noise. Background technique [0002] A kind of existing cooling module 8, please refer to figure 1 and 2 As shown, it includes a heat sink 81 and an axial fan 82, the heat sink 81 is provided with a bottom plate 811, several heat dissipation fins 812 and several wind-dispelling channels 813, the bottom plate 811 is preferably a circular bottom plate, The plurality of heat dissipation fins 812 are radially arranged at equal intervals on the outer periphery of the bottom plate 811, and the plurality of heat dissipation fins 812 jointly surround a housing space 814 on the top surface of the bottom plate 811, and the axial flow fan 82 is rotatable. It is arranged in the accommodating space 814 . Each of the wind-dispelling channels 813 is formed between any two adjacent cooling fins 812 , and each of the wind-dispelling chann...

AI Technical Summary

Problems solved by technology

[0007] However, the existing cooling module 9 substantially still has the same disadvantages as the aforementioned existing cooling module 8. When the axial flow fan 92 sends air into the wind-dispelling channel 912 of the cooling plate 91, part of the air flow will Flow toward the opening direction of one end of the wind-dispelling flow passage 912, while other airflows will flow toward the opening direction of the other end in the opposite direction, which will cause the airflow to form a turbulence at the position of the wind-dispelling flow passage 912 close to the hub 9221 (such as Figure 4 shown)

At the same time, when the airflow passes through the heat dissipation fins 911, it is also easy to generate wind shear noise, so that the existing heat dissipation module has disadvantages such as excessive operating noise.

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