Computer fan device with backflow prevention function

Abstract

The invention belongs to the technical field of fans, and particularly relates to a computer fan device with a backflow prevention function. The computer fan device with the backflow prevention function comprises a base, a support fixed to the base, a driving motor installed on the support and a fan body installed on an output shaft of the driving motor. Due to the addition of a control device, the fan body has reduced reliability and reduced practicability, first springs in the fan device can be damaged and invalid especially after long-time use, and fan blades cannot swing laterally or resetnormally. According to the computer fan device with the backflow prevention function, the fan blades which cannot swing laterally normally are driven by wind power to swing and open, and when the fanblades reset, an adjusting ring is pressed down through a reset spring, the adjusting ring drives the fan blades which are not reset to swing and reset, and it is guaranteed that the corresponding fan blades can be opened and reset after the first springs are damaged. In addition, by means of a sliding-block and sliding-sleeve disengaging machine structure, it is guaranteed that when the first spring is damaged, the fan body cannot be limited by threaded fit of a sliding block and a fixed shaft when swinging under the action of wind.

Description

[0001] Technical field [0002] The invention belongs to the technical field of fans, in particular to a computer fan device with backflow prevention. Background technique [0003] With the rapid upgrading of electronic products, the performance of computer hardware is becoming more and more powerful, which will inevitably lead to the generation of a lot of heat when these computer hardware with good performance are used, and the high temperature of computer hardware will greatly reduce it. Therefore, it is necessary to set up a heat dissipation mechanism to effectively dissipate heat to ensure that the hardware maintains high-performance operation for a long time. [0004] In a computer, a plurality of fans are usually installed to dissipate heat for electronic components in the electronic product. However, when some fans stop rotating due to a fault, the faulty fan will generate backflow of air flow, which will cause air flow turbulence and affect the heat dissipation of th...

AI Technical Summary

Problems solved by technology

However, when some fans stop rotating due to a fault, the faulty fan will generate air flow back, which will cause air flow turbulence and affect system heat dissipation.

[0005] For the fan fixing device designed in the publication number 103906408, in order to solve this problem, a first windshield and a second windshield are set on the fan frame, and the first windshield and the second windshield are made The windshield vertically covers the side of the fan vent facing away from the fan, which can block the return airflow; however, after a certain windshield structure in the shielding mechanism fails, the entire fan must be replaced according to the current after-sales service rules. The rack is replaced rather than repaired. When replacing, the fan unit on the original fan rack needs to be removed and reinstalled on the newly replaced mounting rack. The operation is very troublesome and the cost performance is low.

In addition, the patented baffle relies on gravity, so the installation axis of the fan unit must be arranged horizontally, which affects the flexibility of fan unit installation

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