High efficiency fan wing

Abstract

The utility model relates to ceiling fan wing technical field, especially high -efficient fan wing, including the connecting seat and the multiple leaves of the circumference even distribution on connecting seat, the leaf is composed of first leaf face and second leaf face, first leaf face and second leaf face are arranged in turn along the direction of the wind, the angle of second leaf face bottom surface and horizontal plane is first angle, the size of first angle gradually reduces along the direction of away from first leaf face, when using the utility model, can reduce the resistance when the leaf rotates, slow down the wind speed, the higher comfort, reduce the power, and reduce the force on the fan, reduce the potential safety hazard.

Description

Technical Field

[0001] This utility model relates to the field of ceiling fan wing technology, and in particular to a high-efficiency fan wing. Background Technology

[0002] The lift-to-drag ratio is a core parameter in aerospace engineering for measuring the efficiency of airfoils. Its value directly reflects the ratio of lift generated by the airfoil to drag under specific conditions. Generally speaking, the higher the lift-to-drag ratio, the greater the lift generated by the airfoil under the same operating conditions, while the less drag it experiences, resulting in better aerodynamic performance.

[0003] In the ceiling fan industry, the design of ceiling fan blades is unique, typically featuring a large width and a small angle. Their core function is to achieve effective cooling while ensuring sufficient airflow. However, most existing ceiling fan blades employ a planar cross-section, a design with significant drawbacks: firstly, the planar structure significantly increases the reaction force of resistance on the blades, resulting in higher exhaust pressure and impacting user comfort; secondly, the increased upward pressure of air on the fan leads to greater pressure on the mounting wall, posing safety hazards and installation stability issues. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a high-efficiency fan wing with low power consumption, low wind resistance, and high comfort.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] The present invention provides a high-efficiency fan blade, which includes a connecting seat and multiple fan blades evenly distributed on the connecting seat around the circumference.

[0007] The fan blade is composed of a first blade surface and a second blade surface; the first blade surface and the second blade surface are arranged sequentially along the windward direction.

[0008] The angle between the bottom surface of the second leaf and the horizontal plane is the first angle; the size of the first angle gradually decreases in the direction away from the first leaf.

[0009] Furthermore, the lower surface of the first leaf is arc-shaped; the angle between the bottom surface of the first leaf and the horizontal plane is the second angle; the size of the second angle first increases and then decreases as it approaches the second leaf.

[0010] Furthermore, the bottom surface of the first blade is a convex arc surface.

[0011] Furthermore, the maximum value of the second included angle is 23°-28°; the minimum value of the second included angle is 6°-8°.

[0012] Furthermore, the maximum value of the first included angle is 21°-22°; the minimum value of the first included angle is 6°-8°.

[0013] With the above structure, the beneficial effects of this utility model are as follows: while ensuring the area of ​​the lower surface of the fan blade and guaranteeing the air volume, the first included angle gradually decreases, which reduces the area of ​​the horizontal projection direction of the fan blade, thereby reducing the resistance when the fan blade rotates, slowing down the wind speed, improving comfort, reducing power consumption, reducing the pressure on the fan, and reducing safety hazards. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 It is a cross-sectional view of the fan blade;

[0016] Explanation of reference numerals in the attached figures:

[0017] 1. Connecting seat; 2. Fan blade; 201. First blade surface; 202. Second blade surface. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] like Figures 1 to 2 As shown, the high-efficiency fan blade of this utility model includes a connecting seat 1 and multiple fan blades 2 evenly distributed on the connecting seat 1 around the circumference.

[0020] The fan blade 2 is composed of a first blade surface 201 and a second blade surface 202; the first blade surface 201 and the second blade surface 202 are arranged sequentially along the windward direction;

[0021] The angle between the bottom surface of the second blade 202 and the horizontal plane is the first angle; the size of the first angle gradually decreases in the direction away from the first blade 201.

[0022] While ensuring the area of ​​the lower surface of the fan blades and guaranteeing airflow, the first included angle gradually decreases, which reduces the area of ​​the horizontal projection of the fan blades. This reduces resistance when the fan blades rotate, slows down the wind speed, improves comfort, reduces power consumption, and reduces the pressure on the fan, thus reducing safety hazards.

[0023] In a preferred embodiment of this utility model, the lower surface of the first blade 201 is arc-shaped; the angle between the bottom surface of the first blade 201 and the horizontal plane is the second angle; the size of the second angle first increases and then decreases as it approaches the second blade 202.

[0024] The lower surface of the first blade 201 is designed with an arc-shaped streamlined structure, which makes the airflow closer to the center of the fan.

[0025] In a preferred embodiment of this utility model, the bottom surface of the first blade 201 is a convex arc surface; the convex arc surface of the first blade 201 and the concave arc surface of the first blade 201 form a streamlined structure, which can reduce wind resistance.

[0026] In a preferred embodiment of this invention, the maximum value of the second included angle is 23°-28°; the minimum value of the second included angle is 6°-8°.

[0027] In a preferred embodiment of this utility model, the maximum value of the first included angle is 21°-22°; the minimum value of the first included angle is 6°-8°.

[0028] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A high-efficiency fan blade, comprising a connecting seat (1) and multiple fan blades (2) evenly distributed on the connecting seat (1) around the circumference; Its features are: The fan blade (2) is composed of a first blade surface (201) and a second blade surface (202); the first blade surface (201) and the second blade surface (202) are arranged sequentially along the windward direction; The angle between the bottom surface of the second blade (202) and the horizontal plane is the first angle; the size of the first angle gradually decreases in the direction away from the first blade (201).

2. The high-efficiency fan wing according to claim 1, characterized in that: The lower surface of the first leaf (201) is arc-shaped; the angle between the bottom surface of the first leaf (201) and the horizontal plane is the second angle; the size of the second angle first increases and then decreases as it approaches the second leaf (202).

3. The high-efficiency fan wing according to claim 2, characterized in that: The bottom surface of the first blade (201) is a convex arc surface.

4. A high-efficiency fan wing according to claim 2, characterized in that: The maximum value of the second included angle is 23°-28°; the minimum value of the second included angle is 6°-8°.

5. A high-efficiency fan wing according to claim 1, characterized in that: The maximum value of the first included angle is 21°-22°; the minimum value of the first included angle is 6°-8°.

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