Axial flow fan and axial flow fan blades thereof
An axial flow fan blade and blade technology, applied in the field of axial flow fan and its axial flow fan blade, can solve the problems of high power consumption of axial flow fan blade, affecting aerodynamic performance, large impact force, etc., so as to improve aerodynamic performance and reduce Power consumption, impact reduction effect
Active Publication Date: 2016-01-20
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0003] During the rotation of the axial flow fan blade, the leading edge of the fan blade is in direct contact with the airflow, which generates a large impact force, which makes the blade generate noise; moreover, the airflow generates turbulent flow under the action of the impact force, which affects the aerodynamic performance and makes the axial flow The power consumption of the fan blade is relatively large
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[0027] The invention discloses an axial-flow fan blade to reduce noise, improve aerodynamic performance and reduce power consumption. The invention also discloses an axial fan.
[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0029] Please refer to Figure 1-Figure 3 , figure 1 Schematic diagram of the structure of the axial fan blade provided by the embodiment of the present invention; figure 2 A schematic side view of an axial fan blade provided in an embodiment of the present invention; image 3 Sc...
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The invention discloses an axial flow fan and axial flow fan blades thereof. Each axial flow fan blade comprises a blade body (1). A leeward face (11) and a windward face (12) of each blade body (1) intersect at the front edge of the blade body (1) to form an included angle theta, and the included angle theta is an acute angle. According to the axial flow fan blades, each leeward face and the corresponding windward face intersect at the front edge of the corresponding blade body to form the acute included angle theta, and therefore impact of airflow to the front edges of the blade bodies when the airflow flows into the blade bodies is reduced, and blade rotation noise is effectively lowered; the airflow turbulence degree is reduced, the aerodynamic performance is improved, and power consumption of rotation of the axial flow fan blades is further reduced.
Description
technical field [0001] The invention relates to the technical field of fan equipment, in particular to an axial flow fan and axial flow blades thereof. Background technique [0002] Most of the existing air outlet devices use axial flow fans, that is, motors or other driving devices drive the axial flow fan blades to rotate to generate a large air outlet volume. [0003] During the rotation of the axial flow fan blade, the leading edge of the fan blade is in direct contact with the airflow, which generates a large impact force, which makes the blade generate noise; moreover, the airflow generates turbulent flow under the action of the impact force, which affects the aerodynamic performance and makes the axial flow The power consumption of the flow fan blade is relatively large. [0004] Therefore, how to reduce noise, improve aerodynamic performance, and reduce power consumption is an urgent problem to be solved by those skilled in the art. Contents of the invention [0...
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IPC IPC(8): F04D29/38F04D29/66
Inventor 廖俊杰陈英强彭勃熊军
Owner GREE ELECTRIC APPLIANCES INC