Air outlet flow guiding structure of radiating fan

Abstract

In this diversion structure, the vent hole of the shell forms a pedestal, several ribbings and at least one diversion ring. The pedestal bears the weight of a turbofan. The ribbings are radial connected with the shell and the pedestal. The axial direction length of the diversion ring is greater than the radial width, thus the airflow, focused airflow and guided airflow can be distinguished.

Description

technical field [0001] The invention relates to an air outlet guide structure, in particular to an air outlet guide structure of a heat dissipation fan which forms at least one guide ring at the air outlet to guide the air flow and increase the wind pressure. Background technique [0002] The casing structure of a known cooling fan, as shown in FIG. 1 , includes a casing 10 , an air inlet 11 , an air outlet 12 , a base 13 and several ribs 14 . Two sides of the casing 10 form the air inlet 11 and the air outlet 12 . The base 13 is stably formed on the air outlet 12 of the casing 10 by the rib 14 for fixing a stator (not shown) and combining a fan wheel (not shown). In this way, when the fan wheel is in operation, the cooling fan can suck the airflow through the air inlet 11 and discharge it through the air outlet 12, so as to dissipate heat from an object to be dissipated (such as cooling fins or a central processing unit). . [0003] Although the above-mentioned known hea...

AI Technical Summary

Problems solved by technology

[0003] Although the above-mentioned known heat dissipation fan does have a heat dissipation function, the air flow of the heat dissipation fan can only be discharged along the axial direction of the housing 10 through the air outlet 12 in order to dissipate heat directly below the air outlet 12.

However, if the object to dissipate heat is not located directly below the air outlet 12, the object to dissipate heat will not be able to receive most of the heat dissipation airflow, which may cause uneven heat dissipation and affect the actual heat dissipation efficiency

On the other hand, when the object to dissipate heat cannot be selected to be combined directly under the base 13 or the outer diameter range of the air outlet 12 due to limited assembly space (such as in a notebook computer), or when the object to dissipate heat When the object has a large size and cannot be completely directly under the cooling fan, it will seriously affect the actual cooling efficiency

Furthermore, when the air flow passes through the ribs 14, it is also likely to be accompanied by turbulence or turbulence, which will generate noise and reduce heat dissipation efficiency.

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