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Fan and flow guide structure thereof

A fan and fan blade technology, applied in the field of fans that can change the airflow direction, can solve the problems of low air output, high noise and low efficiency, and achieve the effects of large air output, low noise and high heat dissipation efficiency

Active Publication Date: 2014-04-30
DELTA ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, compared with the axial flow fan, although the centrifugal fan can achieve the purpose of changing the air outlet direction, it has disadvantages such as low efficiency, low air volume, and high noise.

Method used

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  • Fan and flow guide structure thereof
  • Fan and flow guide structure thereof
  • Fan and flow guide structure thereof

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Embodiment Construction

[0027] Please also refer to image 3 and Figure 4 as shown, image 3 is a perspective view of the first embodiment of the present invention, Figure 4 is along image 3 Sectional view of section line A-A'. As shown in the figure, the fan 3 of the present invention includes a flow guide structure 30 , an impeller 32 and a guide ring 34 .

[0028] The outer diameter of the flow guide structure 30 gradually expands from the top of the flow guide structure 30 to the bottom of the flow guide structure 30 , so that the outer ring surface of the flow guide structure 30 forms at least one curved surface. The impeller 32 is disposed above the flow guiding structure 30 , and the impeller 32 has a hub 320 and a plurality of fan blades 322 . The fan blade 322 is disposed on the outer ring surface of the hub 320 , and the hub 320 is provided with a motor (not shown in the figure), and the outer diameter of the hub 320 gradually expands from the top of the hub 320 to the middle sectio...

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Abstract

The invention discloses a fan and a flow guide structure thereof. The fan comprises the flow guide structure, an impeller and a guide ring. The outer diameter of the flow guide structure increases gradually from the top of the flow guide structure to the bottom of the flow guide structure. The impeller is arranged above the flow guide structure and comprises a plurality of blades. An air inlet is formed in the top of the guide ring, and an air outlet is formed between the bottom edge of the guide ring and the outer ring face of the bottom of the flow guide structure. When the impeller rotates, air flow flows into the impeller from the air inlet, then flows along the outer ring face of the flow guide structure and flows out of the air outlet, and the direction in which the air flow flows out of the air outlet is different from the direction in which the air flow flows in from the air inlet.

Description

[0001] This invention is a divisional application of the Chinese invention patent application (application number: 200810088788.0, application date: May 7, 2008, invention name: fan and its flow guide structure). technical field [0002] The invention relates to a fan, in particular to a fan capable of changing the direction of air flow. Background technique [0003] With the continuous improvement of the performance of electronic devices, cooling devices or cooling systems have become one of the indispensable equipment in current electronic devices, because if the heat energy generated by electronic devices is not dissipated properly, the performance will deteriorate at least, and the serious It may cause burning of the electronic device. Heat sinks are even more important for microelectronic components (such as integrated circuits, ICs), because with the increase in integration and the advancement of packaging technology, the area of ​​integrated circuits is continuously s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/54F04D29/32
Inventor 许家铭张楯成
Owner DELTA ELECTRONICS INC
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