Fan structure and axial fan

A fan and fan blade technology, which is applied to the components of pumping devices for elastic fluids, non-variable-capacity pumps, machines/engines, etc. Vortex and turbulence, reduced radial flow, reduced separation effects

Active Publication Date: 2012-07-18
TCL AIR CONDITIONER ZHONGSHAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Although there are designs for axial flow fans in the current technology, which can suppress fan noise and reduce the manufacturing cost of fans, they have not compreh

Method used

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  • Fan structure and axial fan
  • Fan structure and axial fan
  • Fan structure and axial fan

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Embodiment Construction

[0020] Such as figure 1 and figure 2 as shown, figure 1 It is a structural schematic diagram of a preferred embodiment of the fan structure of the present invention; figure 2 yes figure 1 The schematic diagram of the structure of the fan blade in the fan shown.

[0021] A fan structure proposed in this embodiment is an axial flow fan structure, including a hub 101 and three fan blades 102 installed on the hub 101. The three fan blades 102 are centered on the rotation center axis of the fan blade 102 and rotated at 120 degrees. The ±5 degrees are distributed at equal intervals, and the shape of the wind blade 102 is a sickle shape with a wide outside and a narrow inside, and is distorted in three-dimensional space. The number of blades 102 installed on the hub 101 can also be set to be more than three according to actual application scenarios.

[0022] Wherein, the edge at the tail of the sickle is the trailing edge 105 of the fan blade 102 , and the concave arc edge opp...

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Abstract

The invention relates to a fan structure and an axial fan, comprising a wheel hub and three blades mounted on the wheel hub, wherein the three blades are equidistantly distributed by using a rotation central axis of the blade as the centre, the blade is provided with a tail edge and a front edge opposite to the tail edge, the tail edge of the blade is provided with at least five W-shaped grooves which are gradually reduced in proportion from outside to the wheel hub direction. In the invention, the air quantity and the efficiency of the axial fan can be effectively improved, the fan vibration is improved, and the fan noise and the design cost are reduced; meanwhile, the weight of the fan is lightened, and the load of the fan motor is reduced; according to above characteristics, the axial fan is preferably suitable for an outdoor unit of an air-conditioner, and can improve the refrigerating output, heat quantity and energy efficiency ratio of the air-conditioner.

Description

technical field [0001] The invention relates to the technical field of axial fans, in particular to a fan structure suitable for an outdoor unit of an air conditioner and an axial fan with the fan structure. Background technique [0002] At present, the outdoor unit of the indoor air conditioner basically adopts an axial flow fan, and the blades of the axial flow fan usually consist of 2-6 blades. Although the axial flow fan has the advantages of large air volume and low noise. However, the design of the axial flow fan has a direct impact on performance parameters such as cooling capacity, heating capacity and energy efficiency ratio of the air conditioner. Therefore, the optimal design of the axial flow fan is crucial to the performance of the air conditioner. [0003] For conventional axial flow fans, the air volume is proportional to the number of blades. The more blades, the easier it is to obtain a larger air volume. However, the more blades, the higher the cost and t...

Claims

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Application Information

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IPC IPC(8): F04D29/32F04D29/38
CPCF04D29/384F05D2240/304
Inventor 招伟
Owner TCL AIR CONDITIONER ZHONGSHAN CO LTD
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