Fan blade structure

Abstract

The utility model belongs to the technical field of cooling fans, and particularly relates to a fan blade structure which comprises an inner ring and blades distributed on the outer side of the inner ring. Each blade comprises a main rib, and one end of each main rib is connected with the inner ring; a plurality of supporting ribs extend from one side of the main rib, and a thin wing is arranged between every two adjacent supporting ribs, or the thin wings are arranged between the supporting ribs and the inner ring; the thickness of the thin wings is smaller than that of the supporting ribs. The same blade is connected through a plurality of supporting ribs and thin wings, the supporting ribs connected between the thin wings are in the shape of a bat wing, and the supporting ribs can clearly show more than two obvious circular rings to distinguish different layering sense when the blade operates, so that the blade is delightful for people.

Description

Technical Field

[0001] The utility model belongs to the technical field of fans, and in particular relates to a fan blade structure. Background Art

[0002] Cooling fans are usually used to dissipate heat and cool down electronic equipment, such as the CPU, power supply, graphics card, etc. of a computer. Traditional cooling fans generally include a motor and fan blades, and the fan blades include multiple blades, and the blades adopt a 3D curved surface structure, and the thickness of the blades is consistent, and in order to ensure the strength of the blades, the blades are designed to a certain thickness. However, traditional fan blades will cause the fan to have problems such as unconcentrated air output and insufficient wind pressure, which in turn leads to poor heat dissipation efficiency and the inability to effectively dissipate heat in densely arranged electronic component areas or other high heat accumulation areas. In order to solve the technical defects of traditional cooling fans, the fan blades of the cooling fan are improved. For example, the Chinese patent document with publication number CN221373991U discloses a cooling fan, and the Chinese patent document with publication number CN221236928U discloses a cooling fan and a power supply device. In order to solve the above-mentioned technical problems, the above patent documents both provide a plurality of ribs on the upper surface of the fan blades, and use the ribs to cut the airflow, thereby solving problems such as insufficient wind pressure.

[0003] However, adding ribs to the fan blades would further increase the thickness of the blades, which would not only increase material costs but also increase energy consumption. Furthermore, the heat dissipation airflow mainly relies on the bottom surface of the fan blades to form a downward airflow. However, the bottom of the fan blades is generally smooth, which easily forms vortices, resulting in insufficient wind pressure. Utility Model Content

[0004] The utility model aims to provide a fan blade structure for solving the problem that the existing heat dissipation fan may form vortexes, resulting in unconcentrated air output and insufficient air pressure.

[0005] To achieve the above-mentioned purpose, an embodiment of the present invention provides a fan blade structure, including an inner ring and blades distributed on the outside of the inner ring; the blades include a main bone bar, one end of which is connected to the inner ring; a plurality of supporting bone bars extend from one side of the main bone bar, and thin wings are provided between adjacent supporting bone bars, or the thin wings are provided between the supporting bone bars and the inner ring; the thickness of the thin wings is less than the thickness of the supporting bone bar.

[0006] Furthermore, the supporting bone strips are arc-shaped and extend obliquely downward.

[0007] Furthermore, there are multiple supporting bone bars, and each end of the main bone bar is provided with a supporting bone bar, and the thin wings are provided between adjacent supporting bone bars.

[0008] Furthermore, the supporting bone bars located between the two ends of the main bone bars are inclined to extend downwardly toward the same side.

[0009] Furthermore, the supporting bone bars located between the two ends of the main bone bars extend in a fan shape.

[0010] Furthermore, the outer edges of the supporting bone strips on the outer sides of the blades are located on the same cylindrical surface.

[0011] Furthermore, there are multiple supporting bone bars, which are distributed in a folded structure.

[0012] Furthermore, one ends of two adjacent supporting bone bars intersect, and the main bone bar has an intersection formed by at least two supporting bone bars.

[0013] Furthermore, it also includes an outer ring, and the blades are arranged between the inner ring and the outer ring.

[0014] Furthermore, a plurality of cutouts are provided on the bottom side of the outer ring, and adjacent cutouts form a connecting portion, and the outer side of the blade is connected to the inner side of the connecting portion.

[0015] Furthermore, the thickness of the supporting bone strip gradually decreases from one end to the other end of the main bone strip, so that the top surface and the bottom surface of the free end of the supporting bone strip are flush with the top surface and the bottom surface of the thin wing respectively.

[0016] The above one or more technical solutions in the fan blade structure provided by the embodiment of the utility model have at least the following technical effects:

[0017] The fan blade structure comprises a main rib, one end of which is connected to an inner ring. Several support ribs extend from one side of the main rib, with thin wings positioned between adjacent support ribs or between a support rib and the inner ring. The thin wings are thinner than the thickness of the support ribs. This effectively reduces the fan blade's volume and weight, lowering energy consumption. Furthermore, the main rib, support ribs, and thin wings form a concave-convex structure on both the top and bottom surfaces, creating a structure similar to a bat's wing. This results in a relatively quiet blade while maintaining optimal performance. Furthermore, the blade suppresses vortex shedding in the center, eliminating the backflow typically generated to prevent shedding. This improves the fan structure's wind pressure and air volume, resulting in a more concentrated airflow. Furthermore, multiple support ribs are connected to the same blade using thin wings, creating a bat-wing-like connection between the support ribs. When the blade is in operation, the support ribs create two or more distinct circular rings, creating a distinct, layered effect that is visually pleasing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 This is a structural diagram of an embodiment of a fan blade structure provided by an embodiment of the present utility model.

[0020] Figure 2 This is a structural diagram of another embodiment of the fan blade structure provided by an embodiment of the present utility model.

[0021] Figure 3 This is a structural diagram of another embodiment of the fan blade structure provided by an embodiment of the present utility model.

[0022] Figure 4 A structural diagram of an embodiment of the present invention in which a fan blade structure is provided with an outer ring.

[0023] Figure 5 This is a structural diagram of another embodiment of the fan blade structure provided by the embodiment of the present invention, in which an outer ring is provided.

[0024] Figure 6 This is a structural diagram of another embodiment of the fan blade structure provided by the embodiment of the present invention, in which an outer ring is provided.

[0025] Figure 7 The outer ring of the fan blade structure provided in an embodiment of the present invention is provided with a cutout - an embodiment structural diagram.

[0026] Figure 8 Another structural diagram of an embodiment of the fan blade structure provided in the embodiment of the present invention is a diagram showing a cutout on the outer ring.

[0027] Figure 9 Another structural diagram of an embodiment of the fan blade structure provided in the embodiment of the present invention is a diagram showing a cutout on the outer ring. DETAILED DESCRIPTION

[0028] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0029] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0031] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0032] In one embodiment of the fan blade structure of the present invention, please refer to Figures 1 to 3, a fan blade structure is used to be set on a heat dissipation fan to form a stable heat dissipation airflow. Specifically, the fan blade structure of this embodiment includes an inner ring 100 and blades 200 distributed on the outside of the inner ring 100. The blades 200 include a main bone bar 210, one end of which is connected to the inner ring 100; a plurality of supporting bone bars 220 extend from one side of the main bone bar 210, and thin wings 230 are provided between adjacent supporting bone bars 220, or between the supporting bone bars 220 and the inner ring 100; and the thickness of the thin wings 230 is much smaller than the thickness of the supporting bone bars 220 and the main bone bar 210. Specifically, the fan blade structure of this embodiment is smaller in size and weight than traditional fan blades, and can effectively reduce energy consumption during rotation. In addition, the top and bottom surfaces of the main bone bar 210, the supporting bone bars 220 and the thin wings 230 have a concave-convex structure, so that the blade 200 has a structure similar to that of a bat's wing. This allows blade 200 to maintain optimal performance while remaining relatively silent. Furthermore, the blade 200 features a protruding rib design, which effectively suppresses vortex shedding in the center, eliminating the backflow previously created to prevent shedding. This improves the fan's wind pressure and volume, resulting in a more concentrated airflow. Furthermore, the same blade 200 utilizes multiple supporting ribs 220 connected by thin wings 230. The supporting ribs 220, which connect the thin wings 230, are shaped like bat wings. When the blade 200 is in operation, the supporting ribs 220 create two or more distinct circular rings, creating a visually pleasing sense of depth.

[0033] Furthermore, the supporting bone strip 220 extends downward in an arc-shaped structure, thereby making the thin wing 230 a curved structure, and further making the blade 200 a curved structure.

[0034] Further, the specific structure of an embodiment of the blade 200. Specifically, please refer to Figure 1 and Figure 2 The number of supporting bone bars 220 is multiple, and a supporting bone bar 220 is provided at both ends of the main bone bar 21, and thin wings 230 are provided between adjacent supporting bone bars 220. This can increase the strength of the blade 200.

[0035] Further, a specific embodiment of the arrangement of the support bone strip 220 is provided. Specifically, please refer to Figure 1 The supporting bone bar 220 located between the two ends of the main bone bar 210 extends downwardly and tilted toward the same side.

[0036] Further, for another specific embodiment of the arrangement of the support bone strip 220, please refer to Figure 2 The supporting bone strip 220 located between the two ends of the main bone strip 210 extends in a fan shape.

[0037] Furthermore, the outer edges of the supporting bone strips 220 on the outer sides of each blade 200 are located on the same cylindrical surface.

[0038] Further, another specific embodiment of the distribution arrangement of the supporting bone strips 220, specifically, please refer to Figure 3 There are multiple supporting bone bars 220, which are distributed in a folded structure.

[0039] For further information, please refer to Figure 3 One end of two adjacent supporting bone bars 220 intersects, and the main bone bar 210 has an intersection 201 formed by at least two supporting bone bars 220.

[0040] Furthermore, the fan blade structure of this embodiment further includes an outer ring 300, for details, please refer to Figures 4 to 6 The blade 200 is disposed between the inner ring 100 and the outer ring 300. Therefore, the strength of the end of the blade 200 can be increased to avoid deformation and other problems.

[0041] For further information, please refer to Figures 7 to 9 The bottom side of the outer ring 300 is provided with a plurality of cutouts 301, and adjacent cutouts 301 form connecting portions 302, and the outer side of the blade 200 is connected to the inner side of the connecting portion 302. Therefore, the outer ring 300 increases the strength of the blade 200 and also reduces the weight of the outer ring 300.

[0042] Furthermore, the thickness of the support bar 220 gradually decreases from one end of the main bar 210 to the other end, so that the top and bottom surfaces of the free ends of the support bar 220 are respectively flush with the top and bottom surfaces of the thin wings 230. This prevents the ends of the support bar 220 from interfering with the airflow.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fan blade structure, comprising an inner ring and blades distributed outside the inner ring; characterized in that: The blade includes a main bone bar, one end of which is connected to the inner ring; a plurality of supporting bone bars extend from one side of the main bone bar, and thin wings are provided between adjacent supporting bone bars, or between the supporting bone bars and the inner ring; the thickness of the thin wings is less than the thickness of the supporting bone bar.

2. The fan blade structure according to claim 1, characterized in that: The supporting bone strip is in an arc-shaped structure and extends obliquely downward.

3. The fan blade structure according to claim 1, characterized in that: There are multiple supporting bone bars, and each of the two ends of the main bone bar is provided with a supporting bone bar, and the thin wings are provided between adjacent supporting bone bars.

4. The fan blade structure according to claim 3, characterized in that: The supporting bone bars located between the two ends of the main bone bars are inclined and extend downward toward the same side.

5. The fan blade structure according to claim 3, characterized in that: The supporting bone strips located between the two ends of the main bone strips extend in a fan shape.

6. The fan blade structure according to any one of claims 3 to 5, characterized in that: The outer edges of the supporting bone strips on the outer sides of the blades are located on the same cylindrical surface.

7. The fan blade structure according to claim 1, characterized in that: There are multiple supporting bone bars, which are distributed in a folded structure.

8. The fan blade structure according to claim 7, characterized in that: One ends of two adjacent supporting bone bars intersect, and the main bone bar has an intersection formed by at least two supporting bone bars.

9. The fan blade structure according to any one of claims 1 to 5, 7, and 8, characterized in that: It also includes an outer ring, and the blades are arranged between the inner ring and the outer ring.

10. The fan blade structure according to claim 9, characterized in that: A plurality of cutouts are provided on the bottom side of the outer ring, and adjacent cutouts form connecting portions, and the outer sides of the blades are connected to the inner sides of the connecting portions.

11. The fan blade structure according to any one of claims 1 to 5, 7, and 8, characterized in that: The thickness of the supporting bone strip gradually decreases from one end to the other end of the main bone strip, so that the top surface and the bottom surface of the free end of the supporting bone strip are flush with the top surface and the bottom surface of the thin wing respectively.

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