Cooling system with backflow prevention function
A cooling system and anti-reflux technology, applied in cooling/ventilation/heating renovation, instruments, electrical and digital data processing, etc., which can solve the problems of inability to export heat, increased cost, short circuit of air ducts, etc.
Inactive Publication Date: 2013-03-13
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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Problems solved by technology
[0002] Servers or module power supplies have relatively strict heat dissipation requirements. When multiple cooling fans work in parallel, if one fan fails and stops, there will be a short circuit in the air duct, forming an internal circulation, resulting in heat that cannot be exported.
In order to solve the above problems, one solution is to install a backflow prevention device with rotatable blades at the air outlet of the fan. In order to meet fans of different sizes, this usually requires multiple sets of molds to form blades of different sizes, which increases the cost.
Method used
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[0018] refer to figure 1 and figure 2 , a heat dissipation system 100 includes a fan 10 and a backflow prevention part 20, the backflow prevention part 20 is arranged on the air outlet or air inlet side of the fan 10, the backflow prevention part 20 includes a plurality of rotatable blades 21, the A plurality of vanes 21 are rotatable between an open position and a closed position. When the fan 10 works normally, the plurality of blades 21 are driven by the airflow generated by the fan 10 to rotate as figure 1 In the open position shown, at this time, gaps are formed between the plurality of blades 21 to allow airflow to pass through the fan 10 . When the fan 10 fails and cannot work normally, the plurality of blades 21 turn back to the figure 2 In the closed position shown, at this time, the plurality of blades 21 are substantially in the same plane, and there is no gap between the plurality of blades 21 , so that the plurality of blades 21 can prevent the airflow from p...
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The invention provides a cooling system. The cooling system comprises a fan and a backflow prevention part; the backflow prevention part is arranged at one side of an air outlet or an air inlet of the fan; the backflow prevention part comprises a plurality of rotatable blades; the blades can be rotated between the opening position and the closing position; when the blades are located at the opening position, gaps are formed among the blades, so that airflow is allowed to pass through the fan; and when the blades are located at the closing position, the blades prevent airflow from passing through the fan; a groove extending along width direction of the blade is formed in each blade; each blade is separated as a first part and a second part by the groove; and the first part can be bent down from the second part due to the groove. According to the cooling system provided by the invention, as V-shaped grooves extending along width direction of the blades are formed in the blades, the blades are separated into multiple monomers by the grooves, and the groove enables one monomer to be bent down from the other monomer connected with the monomer, so that the blades formed by one set of mold can adapt to fans with different dimensions and specifications.
Description
technical field [0001] The invention relates to a heat dissipation system, in particular to a heat dissipation system with anti-backflow function. Background technique [0002] Servers or module power supplies have strict heat dissipation requirements. When multiple cooling fans work in parallel, if one fan fails and stops, there will be a short circuit in the air duct, forming an internal circulation, resulting in heat that cannot be exported. In order to solve the above problems, one solution is to install a backflow prevention device with rotatable blades at the air outlet of the fan. In order to meet fans of different sizes, this usually requires multiple sets of molds to form blades of different sizes, thereby increasing the cost. Contents of the invention [0003] In view of this, the present invention provides a heat dissipation system with the function of preventing backflow, and the blades included in the backflow preventing device can be adapted to fans of differ...
Claims
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IPC IPC(8): G06F1/20H05K7/20
CPCH05K7/20181G06F1/20Y10T137/3149
Inventor 汤贤袖
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD