Backflow prevention fan device for computer

Abstract

The invention discloses an anti-backflow fan device used for a computer, and relates to the technical field of anti-backflow fans, the anti-backflow fan device comprises a heat dissipation shell and a heat dissipation fan assembly, one side of the heat dissipation shell is fixedly connected with a plurality of fixed baffles, and the heat dissipation fan assembly is installed on the side, opposite to the fixed baffles, of the heat dissipation shell; a plurality of fixed baffles are arranged on the heat dissipation fan assembly, intervals are designed among the fixed baffles, the anti-backflow mechanism is located on the sides, close to the heat dissipation fan assembly, of the fixed baffles, the anti-backflow mechanism comprises a framework, a sealing piece, a center piece and a reset piece, the center piece is installed on the framework, and the sealing piece and the reset piece are both installed on the center piece. The sealing pieces and the center piece are symmetrically distributed on the two sides of the framework, the framework is installed on the fixed baffle, after the cooling fan assembly stops working, the sealing pieces can be reset through elastic deformation of the reset pieces, and the purpose of backflow prevention can be achieved in the mode that the ends of the sealing pieces are tightly attached. The anti-backflow device has the characteristics of simple structure and good anti-backflow effect.

Description

technical field [0001] The invention relates to the technical field of backflow prevention fans, in particular to a backflow prevention fan device used in a computer. Background technique [0002] With the rapid upgrading of electronic products, the hardware performance of computers is becoming more and more powerful, which will inevitably lead to the generation of a lot of heat when the computer hardware with good performance is in use. Therefore, it is necessary to set up a cooling mechanism to effectively dissipate heat to ensure that the hardware maintains high-performance operation for a long time. [0003] In a computer, a number of fans are usually installed to dissipate heat from the electronic components in the electronic product. However, when some fans stop rotating due to a fault, the air flow will flow back to the faulty fan, causing disturbance of the air flow and affecting the heat dissipation of the system. [0004] However, the existing backflow prevention...

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.

[0004] However, the existing anti-backflow fan device generally has a relatively complicated structure, and the anti-backflow effect produced by the internal structure is relatively poor.

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