Air outlet flow guiding structure of radiating fan
A technology of air outlet and heat dissipation fan, which is applied in the direction of semiconductor devices, semiconductor/solid-state device components, components of pumping devices for elastic fluids, etc., and can solve the problem of inability to receive heat dissipation airflow, noise, turbulence or turbulence, etc. question
Inactive Publication Date: 2008-01-23
SUNONWEALTH ELECTRIC MACHINE IND
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Problems solved by technology
[0003] Although the above-mentioned known heat dissipation fan does have a heat dissipation function, the airflow 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 combined directly below the base 13 or the periphery of the air outlet 12 due to limited assembly space (such as in a notebook computer), or when the object to dissipate heat has If the size is too large 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 14a, it is also easy to form turbulence or turbulence, which will generate noise and reduce heat dissipation efficiency.
Method used
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[0038] In order to make the above and other objects, features and advantages of the present invention more clearly understood, specific embodiments of the present invention will be exemplified below and described in detail in conjunction with the accompanying drawings.
[0039] Fig. 2 discloses the perspective view of the air outlet guide structure of the heat dissipation fan of the first embodiment of the present invention; Fig. 3 discloses the top view of the air outlet guide structure of the heat dissipation fan of the first embodiment of the present invention; Fig. 4 discloses the present invention along Fig. 3 The cross-sectional view of the A-A line; Fig. 5 discloses the cross-sectional view of the air outlet guide structure of the cooling fan of the second embodiment of the present invention; Fig. 5A discloses the partial enlarged view of Fig. 5 of the present invention; Fig. 6 discloses the third embodiment of the present invention Cross-sectional view of the air outlet...
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In this diversion structure, the vent hole of the shell forms a pedestal and several flow deflectors, the pedestal bears the weight of a turbofan and is supported by the flow deflector. The flow deflector is arranged along the defined direction and slope to the axial direction of the vent hole. When turbofan operating, the flow deflector guides the airflow and increases the wind pressure.
Description
technical field [0001] The invention relates to a flow guide structure of the air outlet of a heat dissipation fan, in particular to a structure of a heat dissipation fan which forms several guide fins at the air outlet of the heat dissipation fan to guide the flow direction of the airflow, increase the wind pressure and reduce the noise of the wind shear. Air outlet guide structure. Background technique [0002] The casing structure of a conventional 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 a. Two sides of the casing 10 form the air inlet and the air outlet. The base 13 is stably formed at the air outlet of the casing 10 by the rib 14a for fixing a stator (not shown) and combining with a fan wheel (not shown). In this way, when the fan wheel is running, 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 to a cert...
Claims
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IPC IPC(8): H01L23/467F04D29/54
Inventor 洪银树洪银农洪庆升
Owner SUNONWEALTH ELECTRIC MACHINE IND