Fan rotor jet structure

Abstract

The present invention provides a fan rotor jet flow structure, comprising a fan wheel body and at least one communication channel, the fan wheel body has a hub and a plurality of blades arranged along the circumference of the hub, the hub is provided with a top and a side wall , an upper surface and a lower surface of each blade respectively form a high pressure area and a low pressure area, the communication channel is provided with at least a first inlet located in the high pressure area and at least a first outlet located in the low pressure area, the The first inlet and the first outlet are respectively a first end and a second end of the communication channel; the design of the present invention can effectively achieve the effect of reducing noise.

Description

technical field [0001] The invention relates to a fan rotor jet structure, in particular to a fan rotor jet structure that can reduce noise. Background technique [0002] With the improvement of 5G, AI, IOT and other technologies, the amount of calculation and information transmission of related electrical communication equipment has increased significantly. At this time, more powerful heat dissipation capacity is required in the equipment to ensure the normal operation of the equipment. The way to increase the cooling capacity in these telecommunications equipment is usually to increase the number of fans, increase the fan speed or change the fan design, but fans with higher characteristics tend to produce higher noise due to increased flow and pressure,” How to increase the cooling characteristics of the fan and reduce the noise?" It has always been the biggest bottleneck encountered by R&D designers in the industry. [0003] The existing noise reduction methods are mainl...

AI Technical Summary

Problems solved by technology

[0004] Prior Art U.S. Patent No. 6,244,817 uses an external air injection source to perform jet flow, which is called an active jet flow method, which is to add an air injection device on the frame wall of the fan to provide an air injection source to spray the tip of the blades in the frame wall to suppress the vortex. However, another problem arises, that is, it is necessary to add an external air jet source (that is, an air jet device) and an external power supply drive, so that it is impossible to place an additional air jet device in a limited space (such as a server or communication equipment), resulting in failure. Execution, and the cost is relatively significantly increased due to the addition of jet equipment

In addition, the existing jet flow method hinders the fan structure from having a rotating part (i.e. the rotor), so that the connecting pipe connecting the external air injection source cannot be realized on the rotating part, so the jet flow hole can only be designed on the frame wall of the fan or jet flow on non-rotating parts

Therefore, the method of jet noise reduction is limited by the arrangement of its own jet position, and the range and effect of reducing noise are quite limited.

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