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Axial flow fan structure and axial flow fan

A technology of axial flow wind and fan blades, which is applied to components of pumping devices for elastic fluids, non-variable pumps, machines/engines, etc., and can solve problems such as the inability to improve the performance of axial flow fans as a whole. Achieve the effect of improving fan vibration, increasing cooling capacity and reducing noise

Active Publication Date: 2015-11-18
TCL AIR CONDITIONER ZHONGSHAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 comprehensively considered the above factors and carried out comprehensive improvement and optimization design, so that the overall performance of axial flow fans cannot be improved.

Method used

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  • Axial flow fan structure and axial flow fan
  • Axial flow fan structure and axial flow fan

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Embodiment Construction

[0023] The solution of the embodiment of the present invention is mainly as follows: at least five V-shaped sawtooth grooves with different sizes and non-continuous arrangement are arranged on the trailing edge of the fan blade, the bottom point of each V-shaped sawtooth groove and the two ends of the trailing edge are in a straight line, and at the same time Optimize the linear distance and arc length between the V-shaped sawtooth groove and the end point of the fan blade trailing edge to improve the air volume and efficiency of the axial fan, reduce fan noise and design costs, so that the axial fan can be used in air conditioners When the outdoor unit is on, the cooling capacity, heating capacity and energy efficiency ratio of the air conditioner can be improved.

[0024] like figure 1 as shown, figure 1 It is a structural schematic diagram of a preferred embodiment of the axial flow wind wheel structure of the present invention; an axial flow wind wheel structure proposed ...

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PUM

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Abstract

The invention relates to an axial wind wheel structure and an axial fan, the axial wind wheel structure comprises a wheel hub and three blades mounted on the wheel hub, the three blades are equidistantly distributed by using a rotation central axis of the blades 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 V-shaped saw-toothed grooves in different sizes, the bottom point of each V-shaped saw-toothed groove and two end points of the tail end are in a straight line. The tail edge of the blade is provided with at least five discontinuously arranged V-shaped saw-toothed grooves in different sizes, the bottom point of each V-shaped saw-toothed groove and two end points of the tail end are in the straight line, and therefore, the more comprehensive optimization design of the axial fan can effectively improve the air quantity and the efficiency of the axial fan, improves the fan vibration, and reduces the fan noise and the design cost; meanwhile, the axial fan is characterized by high load; according to the 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 flow fans, in particular to an axial flow wind wheel structure and an axial flow fan suitable for the outdoor unit of an air conditioner. 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 cos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/32F04D29/38
Inventor 招伟
Owner TCL AIR CONDITIONER ZHONGSHAN CO LTD
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