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Fan and its impeller

An impeller and blade technology is applied in the field of fans and their impellers that can improve the pressure relief of the impeller blade end gap, and can solve the problems of performance loss, fan pressure value drop, efficiency reduction, etc.

Active Publication Date: 2014-10-22
DELTA ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to provide a fan and its impeller, so as to solve the problem of the drop in pressure value of the fan caused by the pressure release in the gap between the blade end of the impeller and the fan frame in the existing fan, resulting in loss of performance, lower efficiency and higher noise. higher deletion

Method used

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  • Fan and its impeller
  • Fan and its impeller
  • Fan and its impeller

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Embodiment Construction

[0067] Some typical embodiments embodying the features and advantages of the present invention will be described in detail in the description in the following paragraphs. It should be understood that the present invention can have various changes in different states without departing from the scope of the present invention, and the descriptions and illustrations therein are used for illustration in nature rather than limiting the present invention.

[0068] see Figure 2A , which is a structural schematic diagram of the impeller of the fan according to the first preferred embodiment of the present invention. The impeller 20 of the present invention is mainly composed of a hub 22 and a plurality of blades 23 . Wherein the hub 22 is provided with a motor (not shown) to provide the power source for the operation of the fan. A plurality of blades 23 are arranged around the periphery of the hub 22 and connected with the hub 22. When the hub 22 is driven by the motor to rotate , t...

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Abstract

The invention discloses a fan and an impeller thereof. The impeller comprises a hub and a plurality of blades connected to the hub, wherein each blade comprises a base part connected to the hub and a wing tip opposite to the base part; the blade thickness of the wing tip is larger than that of the base part; and at least one flow guide channel is formed on the wing tip of each blade. Therefore, pressure relief at gaps of the wing tips of the impeller can be avoided, performance loss is reduced, the efficiency of the fan is improved, and noise is reduced.

Description

technical field [0001] The invention relates to a fan and its impeller, in particular to a fan and its impeller which can improve the pressure relief of the blade end clearance of the impeller. Background technique [0002] With the vigorous development of electronic devices, their performance has also been greatly improved, making cooling devices or cooling systems one of the indispensable equipment. If the heat generated by electronic devices cannot be properly dissipated to the outside of the electronic devices, it may It will cause the performance of the electronic device to deteriorate due to overheating, and even short circuit or burnout may occur. Therefore, it is extremely important to install a high-efficiency heat dissipation device inside or around the electronic device. At the same time, improving the efficiency of the heat dissipation device is also important. It is one of the important projects for the industry to continuously improve research and development. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/32F04D29/38H05K7/20
CPCF04D29/384F04D29/684F04D29/682F05D2240/307
Inventor 李金鸿李宗颖
Owner DELTA ELECTRONICS INC