CN211648575U - Disc type fan wheel structure - Google Patents

Abstract

The utility model provides a disc-type impeller structure, including a plate body annularly arranged on the outer peripheral side of a hub, the plate body having a connecting side connected to the hub and a free side extending in the direction opposite to the hub, and a top surface of the plate body or the top surface and a bottom surface are respectively provided with a plurality of convex bodies arranged at intervals, thereby improving the periodic noise problem of existing blades by means of the plurality of convex bodies.

Description

Disc fan wheel structure

technical field

The utility model relates to the field of cooling fans, in particular to a disk-type fan wheel structure.

Background technique

The existing fan wheel dissipates heat in an active manner, and mainly includes a hub and a plurality of fan blades that are arranged at intervals around the hub and extend radially outward. There is a flow channel between the fan blades and the fan blades. Drive fluid flow. The bending direction of each fan blade is related to the rotation direction, and the airflow cannot be driven if it rotates differently. However, when the existing fan rotates, the setting or weight of each fan blade is uneven, or the separation effect of the fan blade on the airflow when the fan blade is actuated, the pulsating force of the periodic air supply, the wind shear sound produced by the blade, and the interaction between the flowing air. Interference and the like cause periodic noise problems (BPF: Blade Pass Frequency).

Therefore, how to solve the above-mentioned problems and deficiencies is the direction that the designer of the utility model in this case and the relevant manufacturers engaged in this industry are eager to research and improve.

Utility model content

In order to improve the above-mentioned problems, one object of the present invention is to reduce the periodic noise problem caused by the existing blades of the disc-type fan wheel structure.

Another object of the present invention is to provide a bladeless disk fan wheel structure.

Another object of the present utility model is to provide a disk-type fan wheel structure that can drive the air flow by forward rotation or reverse rotation.

In order to achieve the above-mentioned purpose, the utility model provides a disc type fan wheel structure, which is characterized in that, comprising:

A plate body is arranged on the outer peripheral side of the hub, the plate body has a connection side and a free side, the connection side is connected to the hub, the free side extends in the direction opposite to the hub, and a top surface and a bottom surface are defined at Between the connecting side and the free side, the top surface is provided with a plurality of upper protrusions spaced at intervals, and a plurality of first gaps are distributed between the plurality of upper protrusions.

The disk-type fan wheel structure, wherein: the plurality of convex bodies are arranged and distributed at equal intervals and/or unequal intervals.

The disc-type fan wheel structure, wherein: the plurality of upper protrusions and the plate body are integrally formed.

In the disk-type fan wheel structure, the plurality of upper protrusions and the plate body are combined by a combination of independent monomers.

The disc fan wheel structure, wherein: the plurality of upper protrusions respectively have a first bottom end and a first free end, and a first axial height is defined between the first bottom end and the first free end and the first axial heights of each of the upper protrusions are the same or different.

In the disk-type fan wheel structure, the first axial height of each upper protrusion gradually increases or decreases from the connection side to the free side.

The disk-type fan wheel structure, wherein: the first axial height of each upper protrusion gradually becomes higher and then lower or gradually lower and higher from the connection side to the free side.

The disk-type fan wheel structure, wherein: the plate body is a single annular plate body, and the plate body and the hub are integrally formed or non- integrally formed.

The disk-type fan wheel structure, wherein: the plate body includes a plurality of plate body parts, and the plurality of times plate body parts together form an annular plate body.

The disk-type fan wheel structure, wherein: the plurality of convex bodies have a cross section parallel to the plate body, and the cross-sectional shapes of the plurality of convex bodies are the same or different.

Said disk fan wheel structure, wherein: the cross-sectional shape is a circle, a square, a triangle, an ellipse, a pentagon, a hexagon, an arc, a pinwheel or a five-pointed star.

In the disk-type fan wheel structure, the arrangement and distribution of the plurality of convex bodies are the same or different.

The disk-type fan wheel structure, wherein: the plurality of convex bodies are arranged and distributed in a radial shape or a plurality of concentric circles from the connection side to the free side.

In the disk-type fan wheel structure, the plurality of upward protrusions are arranged and distributed in a plurality of geometric shapes from the connection side to the free side.

In the disk-type fan wheel structure, the plurality of upper convex bodies respectively have a first outer diameter, and the first outer diameter of each convex body is the same or different.

In the disk-type fan wheel structure, the first outer diameters of the plurality of upper protrusions gradually increase or decrease from the connection side to the free side.

The disc-type fan wheel structure, wherein: the bottom surface is provided with a plurality of lower convex bodies arranged at intervals, and a plurality of second gaps are distributed among the plurality of lower convex bodies, wherein the bottom surface is a plane or an inclined surface.

The disc fan wheel structure, wherein: the arrangement of the plurality of upper convex bodies and the plurality of lower convex bodies is the same or different.

The disk fan wheel structure, wherein: the connecting side forms an air inlet side, the free side forms an air outlet side, and the top surface of the plate body is a plane or an inclined surface.

In order to achieve the above-mentioned purpose, the present utility model additionally provides a disc type fan wheel structure, which is characterized in that, comprising:

a hub, which has a top wall and a side wall, the top wall corresponds to an air inlet of a frame, and the side wall extends vertically from an outer periphery of the top wall;

a plate body having a connecting side and a free side radially extending from the connecting side, the connecting side is connected to the side wall of the hub, and a top surface and a bottom surface are defined between the connecting side and the free side, The top surface is provided with a plurality of upper protrusions, the plurality of upper protrusions are arranged at intervals between the connecting side and the free side, and each upper protrusion has a first gap around it.

The disc fan wheel structure, wherein: the bottom surface is provided with a plurality of lower protrusions arranged at intervals, and each lower protrusion has a second gap around it.

The disc fan wheel structure, wherein: the arrangement of the plurality of upper convex bodies and the plurality of lower convex bodies is the same or different.

The disc fan wheel structure, wherein: the connecting side forms an air inlet side, and the free side forms an air outlet side.

In order to achieve the above-mentioned purpose, the present utility model additionally provides a disc-type fan wheel structure, which is arranged in a fan frame, and is characterized in that, comprising:

A wheel hub has a top wall and a side wall, and the top wall corresponds to an air inlet of the fan frame;

A plate body has an air inlet side and an air outlet side, the air inlet side is adjacent to the side wall of the hub, the air outlet side is located in the opposite direction of the hub, and between the air inlet side and the air outlet side There are a plurality of upper protrusions located on one side of the plate body, the plurality of upper protrusions are distributed at intervals and a plurality of first gaps are formed between the plurality of upper protrusions, and an air flow passes through the plurality of upper protrusions and the plurality of upper protrusions from the air inlet side. The plurality of first gaps flow out toward the air outlet side.

The disc-type fan wheel structure, wherein: the air inlet side and the air outlet side are spaced with a plurality of lower protrusions located on the other side of the plate body, and a plurality of second gaps are formed between the plurality of lower protrusions .

The disc fan wheel structure, wherein: the arrangement of the plurality of upper convex bodies and the plurality of lower convex bodies is the same or different.

To sum up, by virtue of the above structure, and compared with the prior art, the bladeless disc fan wheel structure of the present case can reduce the periodic noise problem caused by the existing blades, and can drive the air flow either forward or reverse. .

Description of drawings

1A and 1B are three-dimensional and top-view schematic diagrams of the present invention;

2A to 2F are schematic views showing the same or different first axial heights of the upper protrusions of the present invention;

2G and 2H are schematic diagrams of other implementations of the top surface of the board body of the present invention;

3A to 3F are schematic diagrams of the arrangement and distribution of the convex bodies of the present invention in the same pattern or different patterns;

4A to 4B are various implementation schematic diagrams of the first outer diameter of the upper convex body of the present invention;

5A to 5H are various implementation schematic diagrams of top cross-sections of the upper convex body of the present invention;

Fig. 5I is the shape combination schematic diagram of the convex body of another embodiment of the present utility model;

6A to 6B are schematic diagrams of the implementation of the present invention in which the upper protrusion and the plate are separate and independent units;

7A is a schematic diagram of other implementations of the combination of the plate body and the hub of the present invention;

Fig. 7B is other implementation schematic diagrams of the combination of the plate body and the hub of the present invention;

FIG. 7C and FIG. 7D are schematic diagrams of the implementation of various combined interferences between the plate body and the hub of the present invention;

8A to 8C are schematic views of the present invention with a second convex body;

8D and 8E are schematic diagrams of other implementations of the bottom surface of the board body of the present invention;

FIG. 9A and FIG. 9B are schematic diagrams of the present invention arranged in the fan frame.

Reference numeral description: disc fan wheel 10; hub 11; top wall 111; side wall 112; slot 1121; plate body 12; secondary plate body part 120; 123; Bottom surface 124; Upper convex body 125; First bottom end 1251; First free end 1252; Insertion part 1253; First gap 126; First axial height h1; The second bottom end 1271; the second free end 1272; the second gap 128; the second axial height h2; the groove 129; the frame body 20; the upper shell 21; the air inlet 211; the lower shell 22; 222; plural through holes 223; stator group 23; side air outlet 24; flow channel 25; rotor group 26; shaft 27; bearing 28.

Detailed ways

The above-mentioned purpose of the present invention and its structural and functional characteristics will be described with reference to the preferred embodiments of the accompanying drawings.

Please refer to FIG. 1A and FIG. 1B for three-dimensional and top-view schematic diagrams of the present invention. As shown in the figure, a disc fan wheel 10 includes a hub 11 and a plate body 12. The hub 11 has a top wall 111 and a side wall 112 extending vertically from an outer periphery of the top wall 11. The top wall 111 In this embodiment, a through hole is shown, but it is not limited to this, and it can also be a structure without through holes. The plate body 12 is, for example, an annular plate body arranged around the hub 11 , and the plate body 12 has a connecting side 121 . and a free side 122, the connection side 121 is connected to the side wall 112 of the hub to form an air inlet side, the free side 122 radially extends in the opposite direction of the hub 11 to form an air outlet side, and the connection side 121 and A top surface 123 and a bottom surface 124 are defined between the free sides 122 on the upper and lower surfaces of the plate body 12 , respectively. The top surface 123 is provided with a plurality of upper protrusions (pillars, pins) 125 arranged at intervals, and a plurality of first gaps 126 are distributed between and/or around the plurality of upper protrusions 125 .

Please continue to refer to FIG. 2A to FIG. 2F , which are schematic diagrams showing the same or different first axial heights of the upper protrusions of the present invention. As shown in the figure, each of the aforementioned protruding bodies 125 has a first bottom end 1251 and a first free end 1252 respectively, the first bottom end 1251 is connected to the top surface 123 of the plate body 12 , and the first free end 1252 Extending upwards, a first axial height h1 is defined between the first bottom end 1251 and the first free end 1252 , and the first axial height h1 can be changed according to the use requirements or the type of the matching fan frame. implement. For example, in one implementation, as shown in FIGS. 2A and 2B , the first axial height h1 of each upper protrusion 125 gradually increases from the connection side 121 to the free side 122 , and the first axial height h1 of each upper protrusion 125 The free end 1252 is horizontal (as shown in FIG. 2A ) or inclined (as shown in FIG. 2B ), wherein it is shown in FIG. 2B as being inclined toward the direction of the hub, but it is not limited to this, and it can also be inclined toward the opposite direction of the hub 11 , and the implementation is close to the connection side here. The first axial height h1 of the first upper protrusions 125 of the 121 is lower than the first axial height h1 of the first upper protrusions 125 near the free side 122 . In another implementation, the first axial height h1 of each of the first protrusions 125 is the same (as shown in FIG. 2C ). In other implementations, the first axial height h1 of each upper protrusion 125 gradually decreases from the connection side 121 to the free side 122 , that is, the first axial height h1 of the upper protrusion 125 close to the connection side 121 higher than the first axial height h1 of the upper protruding body 125 near the free side 122 (as shown in FIG. 2D ); or gradually becomes higher and then lower, that is, the height of the upper protruding body 125 near the connecting side 121 and the free side 122 The first axial height h1 is higher than the upper protrusion 125 in the middle position (as shown in FIG. 2E ), or gradually becomes lower and then higher, that is, the first axial height of the upper protrusion 125 near the connecting side 121 and the free side 122 The height h1 is lower than the upper convex body 125 in the middle position (as shown in FIG. 2F ).

In addition, please continue to refer to FIG. 2G and FIG. 2H , each of the aforementioned embodiments shows that the top surface 123 of the plate body 12 is a plane, but is not limited thereto. In other implementations, the top surface 123 of the plate body 12 may also be an inclined surface, such as inclined toward the hub (as shown in FIG. 2G ) or inclined toward the opposite direction of the hub (as shown in FIG. 2H ). The upper protrusions 125 are arranged in an arrangement that is gradually raised (as shown in FIG. 2G ) or lowered (as shown in FIG. 2H ) from the connection side 121 to the free side 122 . In addition, it should be noted that although the figure shows that the plurality of upper protrusions 125 have the same first axial height h1, it is not limited to this, and the arrangement of the upper protrusions 12 with different first axial heights h1 is also applicable. .

Please continue to refer to FIG. 3A to FIG. 3F , which are schematic diagrams illustrating the same and/or different arrangement and distribution of the upper protrusions of the present invention. Referring back to FIG. 1B , the plurality of upper protrusions 125 are arranged and distributed in a plurality of concentric circles from the connection side 121 to the free side 122 , but not limited thereto. In other implementations, the plurality of protruding bodies 125 are distributed in a radial arrangement from the connecting side 121 to the free side 122 (as shown in FIGS. 3A and 3B ), wherein FIG. 3A shows a straight radial arrangement and FIG. 3B shows a curved radial arrangement . In addition, the plurality of convex bodies 125 may also be arranged and distributed in a plurality of geometric shapes, such as, but not limited to, a plurality of triangular patterns (as shown in FIG. 3C ). In other implementations, as shown in FIG. 3D and FIG. 3E , the top surface of the board is divided into several regions, and the upper protrusions 125 in each region are arranged and distributed in different patterns or manners, for example, the upper protrusions 125 in some regions The upper convex bodies 125 in the remaining areas are arranged in a straight radial shape and are arranged in a curved radial shape (as shown in FIG. 3D ); or the upper convex bodies 125 in some areas are arranged in a triangle shape, and the upper convex bodies 125 in the remaining areas are arranged in a curved radial shape (as shown in FIG. 3E ); Or the upper protrusions 125 in some regions are arranged in a triangle, and the upper protrusions 125 in other regions are arranged in a straight radial shape (as shown in FIG. 3F ). Furthermore, each of the above-mentioned figures shows that the plurality of protrusions 125 can be arranged at equal intervals (as shown in FIGS. 1B , 3A and 3B ) and/or at unequal intervals (as shown in FIGS. 3C , 3E and 3F ), Therefore, the density of the plurality of first gaps 126 can be adjusted and set according to requirements. For example, the larger the distance between the plurality of upper convex bodies 125, the thinner the density, and vice versa.

Please continue to refer to FIG. 4A to FIG. 4B , which are schematic diagrams of various implementations of the first outer diameter of the upper convex body of the present invention. Referring to FIG. 1B together, the plurality of protruding bodies 125 respectively have a first outer diameter d1, and the first outer diameter d1 is defined as a straight line distance between two opposite outermost tangent points. In this figure, each upper protruding body is shown The first outer diameter d1 of the body 125 is the same. But not limited to this. In other implementations, as shown in FIG. 4A , the first outer diameter d1 of the plurality of upper protrusions 125 gradually increases from the connection side 121 of the plate body 12 to the free side 122 , that is, the distance between the upper protrusions 125 close to the free side 122 The first outer diameter d1 is larger than the first outer diameter d1 of the upper protrusion 125 near the connecting side 121 . Or, as shown in FIG. 4B , the first outer diameter d1 of the plurality of upper protrusions 125 gradually decreases from the connection side 121 of the plate body 12 to the free side 122 , that is, the first outer diameter of the upper protrusions 125 close to the connection side 121 d1 is greater than the first outer diameter d1 of the convex body d1 near the free side 122 .

Please continue to refer to FIG. 5A to FIG. 5H , which are schematic top-view cross-sectional views of various implementations of the protruding body of the present invention. As shown in the figure, each of the aforementioned protruding bodies 125 has a cross-sectional shape parallel to the plate body 12 (as shown in FIG. 1A ). , so that each convex body 125 is represented as a cylinder. But not limited to this, in other implementations, the cross-sectional shape is, for example, a triangle (as shown in FIG. 5B ), a quadrangle (as shown in FIG. 5C ), a meniscus (as shown in FIG. 5D ), an ellipse (as shown in FIG. 5E ), a hexagon (as in Figure 5F), pinwheel shape (Figure 5G), pentagram (Figure 5H) and so on. In addition, as shown in FIG. 5I , in other implementations, the cross-sectional shapes of the upper protrusions 125 on the top surface 123 of a plate body 12 may be different, for example, but not limited to, the cross-sectional shape of a part of the upper protrusions 125 is circular, and a part is Triangular, one part is quadrangle, part is meniscus, and the rest is pentagram.

Please continue to refer to FIG. 6A to FIG. 6B , which are schematic diagrams of the implementation of the present invention in which the upper convex body and the plate body are separate and independent units. 1A and FIG. 2A together, the aforementioned upper protrusions 125 and the board body 12 are integrally formed, such as by plastic injection or 3D printing, that is, the plurality of upper protrusions 125 are directly formed on the board Top surface 123 of body 12 . However, in another implementation, the plurality of upper protruding bodies 125 and the plate body 12 are independent monomers and are combined together by a combination means. In this figure, it is shown that the top surface 123 of the plate body 12 is provided with a plurality of spaced arrays. Each of the upper protrusions 125 is provided with a plug-in portion 1253 correspondingly inserted into the groove 129 . In other implementations of bonding means such as gluing or welding, the plurality of upper protrusions 125 are combined with the top surface 123 of the board body 12 .

Please continue to refer to Fig. 7A, which is a schematic diagram of other implementations of the combination of the plate body and the hub of the present invention; Fig. 7B is a schematic diagram of other implementations of the combination of the plate body and the hub of the present invention. As shown in the drawings, referring to FIGS. 1A and 1B together, the aforementioned plate body 12 and the hub 11 are integrally formed, but not limited to this. In another implementation, as shown in FIG. 7A , the plate body 12 and the hub 11 are non-integrated structures that are separated into a single body, and can be joined together by bonding means such as adhesive bonding, solder welding, ultrasonic welding, or laser welding. Together. Furthermore, in another embodiment shown in FIG. 7B , the plate body 12 includes a plurality of plate body parts 120 (for example, but not limited to, 5 sub-plate body parts 120 are shown in this figure), and the plurality of times plate body parts 120 surround Combined with the side wall 112 of the wheel hub 11 to form an annular plate body together. In this way, the upper protrusions 125 of each primary plate body 120 and the upper protrusions 125 of the other secondary plate body portion 120 may be arranged in the same or different settings, for example, the spacing or outer diameter or arrangement or cross-sectional shape or the first axial height may be same or different.

Please continue to refer to FIG. 7C and FIG. 7D , which are schematic diagrams of the implementation of various combined interferences between the plate body and the wheel hub of the present invention. As shown in the figure, when the aforementioned plate body 12 and the hub 11 are non-integrated structures that are separated into a single body, the connecting side 121 of the plate body 12 is combined with the side wall 112 of the hub 11 via the above-mentioned combining means (as shown in FIG. 7C ). However, in another implementation, after the connection side 121 of the plate body 12 and the side wall 112 of the hub 11 interfere, they are combined together by the above-mentioned combining means. In the interference method, for example, the side wall 112 of the hub 11 has a slot 1121 to be inserted by an interference portion 1211 of the connecting side 121 of the plate body 12 .

Please continue to refer to FIG. 8A , FIG. 8B and FIG. 8C , which are schematic diagrams of the present invention with a second protrusion. 1A and 1B together, in another implementation, the bottom surface 124 of the plate body 12 is provided with a plurality of lower protrusions 127 , the plurality of lower protrusions 127 are arranged at intervals and a plurality of second gaps 128 are distributed in the Between the plurality of lower protrusions 127 or around each lower protrusion 127, each lower protrusion 127 has a second bottom end 1271 connecting the bottom surface 124 and a second free end 1272 protruding downward, a second axial height h2 Defined between the second bottom end 1271 and the second free end 1272 . The implementation of the lower protrusion 127 is the same as that of the aforementioned upper protrusion 125 and will not be further described. However, it should be noted that the arrangement of the plurality of upper protrusions 125 and the plurality of lower protrusions 127 on the same plate body 12 may be the same. The free side 122 is arranged in a plurality of concentric circles, and the first axial height h1 and the second axial height h2 gradually increase from the connection side 121 to the free side 122 (as shown in FIG. 8A and FIG. 8B ). However, in other implementations, the arrangement of the plurality of upper protrusions 125 and the plurality of lower protrusions 127 on the same plate body 12 may be different. For example, but not limited to, the plurality of upper protrusions 125 are arranged in a plurality of concentric circles as shown in FIG. 8A . However, the plurality of downward protrusions 127 are distributed in a radial arrangement as shown in FIG. 8C .

In addition, please continue to refer to FIG. 8D and FIG. 8E , the aforementioned embodiments show that the bottom surface 124 of the plate body 12 is a plane, but it is not limited thereto. In another implementation, the bottom surface 124 of the plate body 12 may also be an inclined surface, and the lower convex body 127 presents an arrangement that is gradually raised from the connection side 121 to the free side 122 (as shown in FIG. 8D ). In another implementation, the top surface 123 and the bottom surface 124 of the plate body 12 are both inclined surfaces, so that the plurality of upper protrusions 125 and lower protrusions 127 are gradually raised from the connection side 121 to the free side 122 . Although the figure shows that the plurality of upper protrusions 125 and the lower protrusions 127 have the same first axial height h1 and second axial height h2 respectively, it is not limited to this, and it is also applicable to different first axial heights The arrangement of the upper protrusions 125 of h1 and/or the lower protrusions 127 of the second axial height h2 are different.

Please continue to refer to FIG. 9A and FIG. 9B , which are schematic diagrams of the present invention disposed in the fan frame. 8A to 8C, a frame body 20 has an upper shell 21 and a lower shell 22, the upper shell 21 has an air inlet 211, the lower shell 22 has a joint seat 221, one side The wall 222 defines a side air outlet 24 and a flow channel 25 between the upper shell 21 and the lower shell 22, the combination seat 221 is sleeved with the stator group 23, and a plurality of through holes are selectively arranged around the combination seat 221 223 , in this drawing, the side wall 222 is arranged around the lower shell 22 and extends vertically to connect with the upper shell 21 , and the flow channel 25 communicates with the side air outlet 24 .

The inner surface of the hub 11 of the aforementioned disc fan wheel 10 is provided with a rotor set 26 (including an iron shell and a magnet) and a shaft 27, and by means of the shaft 27, at least one bearing 28 in the joint seat 221 is inserted to connect the rotor. The disc fan wheel 10 is supported on the joint seat 221 , and the rotor group 26 corresponds to the stator group 23 . The top wall 111 of the hub 11 corresponds to the air inlet 211 of the frame body 20 , wherein the diameter of the air inlet 211 of the frame body 20 is larger than, for example, but not limited to, the diameter of the upper wall 111 of the hub 11 . The lower convex body 127 corresponds to the plurality of through holes 223 . When the disc fan wheel 10 rotates, a fluid is driven from the air inlet 211 to enter through the connecting side 121 (or the air inlet side) of the plate body 12 , and then passes through the plurality of upper protrusions 125 and the first gap 126 , and then flows out from the air inlet 211 . The free side 122 (or the air outlet side) flows out, and then flows out from the side air outlet 24 through the flow channel 25 . Furthermore, when the disc fan wheel 10 rotates, the air is driven from the plurality of through holes 223 into the connecting side 121 (or the air inlet side) of the plate body 12 and then passes through the plurality of lower convex bodies 127 and the second The gap 128 then flows out from the free side 122 (or the air outlet side), and then flows out from the side air outlet 24 through the flow channel 25 .

To sum up, by virtue of the above structure, and compared with the prior art, the bladeless disc fan wheel 10 structure of the present case reduces the periodic noise problem caused by the existing blades, and can drive the air flow either in forward rotation or reverse rotation .

The above description is only illustrative rather than restrictive for the present invention, and those of ordinary skill in the art will understand that many modifications, changes or equivalents can be made without departing from the spirit and scope defined by the claims. But all will fall within the protection scope of the present invention.

Claims (26)

1. A disc fan wheel structure, comprising:

the plate body is arranged on the periphery of a hub in a surrounding mode and provided with a connecting side and a free side, the connecting side is connected with the hub, the free side extends towards the direction opposite to the hub, a top surface and a bottom surface are defined between the connecting side and the free side, the top surface is provided with a plurality of upper convex body intervals which are arranged at intervals, and a plurality of first gaps are distributed among the plurality of upper convex bodies.

2. The disc fan wheel structure of claim 1, wherein: the plurality of upper protrusions are arranged at equal intervals and/or at unequal intervals.

3. The disc fan wheel structure of claim 1, wherein: the plurality of upper protrusions and the plate body are integrally formed.

4. The disc fan wheel structure of claim 1, wherein: the plurality of upper convex bodies and the plate body are combined together by a combining means through independent monomers respectively.

5. The disc fan wheel structure of claim 1 or 2 or 3 or 4, wherein: the plurality of upper convex bodies are respectively provided with a first bottom end and a first free end, a first axial height is defined between the first bottom end and the first free end, and the first axial height of each upper convex body is the same or different.

6. The disc fan wheel structure of claim 5, wherein: the first axial height of each of the upper projections gradually becomes higher or lower from the connecting side toward the free side.

7. The disc fan wheel structure of claim 5, wherein: the first axial height of each upper convex body gradually becomes higher and lower or gradually becomes lower and higher from the connecting side to the free side.

8. The disc fan wheel structure of claim 1, wherein: the plate body is a single annular plate body, and the plate body and the hub are integrally formed or non-integrally formed.

9. The disc fan wheel structure of claim 1, wherein: the plate body comprises a plurality of secondary plate body parts which jointly form an annular plate body.

10. The disc fan wheel structure of claim 1, wherein: the plurality of upper convex bodies have a section parallel to the plate body, and the section shapes of the plurality of upper convex bodies are the same or different.

11. The disc fan wheel structure of claim 10, wherein: the cross-sectional shape is circular, square, triangular, elliptical, pentagonal, hexagonal, arc-shaped, windmill-shaped or pentagonal star-shaped.

12. The disc fan wheel structure of claim 1, wherein: the arrangement distribution of the plurality of convex bodies is the same or different.

13. The disc fan wheel structure of claim 12, wherein: the plural upper protrusions are arranged radially or in plural circles concentrically from the connection side to the free side.

14. The disc fan wheel structure of claim 12, wherein: the plurality of protrusions are arranged and distributed in a plurality of geometric shapes from the connection side to the free side.

15. The disc fan wheel structure of claim 1, wherein: the plurality of upper convex bodies are respectively provided with a first outer diameter, and the first outer diameter of each convex body is the same or different.

16. The disc fan wheel structure of claim 15, wherein: the first outer diameter of the plurality of convex bodies is gradually increased or decreased from the connection side to the free side.

17. The disc fan wheel structure of claim 1, wherein: the bottom surface is provided with a plurality of lower convex bodies arranged at intervals, and a plurality of second gaps are distributed among the plurality of lower convex bodies, wherein the bottom surface is a plane or an inclined plane.

18. The disc fan wheel structure of claim 17, wherein: the arrangement of the plurality of upper protrusions and the plurality of lower protrusions is the same or different.

19. The disc fan wheel structure of claim 1, wherein: the connecting side forms an air inlet side, the free side forms an air outlet side, and the top surface of the plate body is a plane or an inclined surface.

20. A disc fan wheel structure, comprising:

the hub is provided with a top wall and a side wall, the top wall corresponds to an air inlet of the frame body, and the side wall vertically extends from the periphery of the top wall;

the plate body is provided with a connecting side and a free side extending from the connecting side in the radial direction, the connecting side is connected with the side wall of the hub, a top surface and a bottom surface are defined between the connecting side and the free side, the top surface is provided with a plurality of upper protrusions, the plurality of upper protrusions are arranged between the connecting side and the free side at intervals, and a first gap is formed around each upper protrusion.

21. The disc fan wheel structure of claim 20, wherein: the bottom surface is provided with a plurality of lower convex bodies which are arranged at intervals, and a second gap is arranged around each lower convex body.

22. The disc fan wheel structure of claim 21, wherein: the arrangement of the plurality of upper protrusions and the plurality of lower protrusions is the same or different.

23. The disc fan wheel structure of claim 20, wherein: the connection side forms an air inlet side, and the free side forms an air outlet side.

24. A disc fan wheel structure disposed in a fan frame, comprising:

the hub is provided with a top wall and a side wall, and the top wall corresponds to an air inlet of the fan frame;

the plate body is provided with an air inlet side and an air outlet side, the air inlet side is adjacent to the side wall of the wheel hub, the air outlet side is located in the direction opposite to the wheel hub, a plurality of upper convex bodies located on one surface of the plate body are arranged between the air inlet side and the air outlet side, the plurality of upper convex bodies are distributed at intervals, a plurality of first gaps are formed among the plurality of upper convex bodies, and an air flow flows out from the air inlet side to the air outlet side through the plurality of upper convex bodies and the plurality of first gaps.

25. The disc fan wheel structure of claim 24, wherein: a plurality of lower convex bodies positioned on the other surface of the plate body are distributed between the air inlet side and the air outlet side at intervals, and a plurality of second gaps are formed among the plurality of lower convex bodies.

26. The disc fan wheel structure of claim 25, wherein: the arrangement of the plurality of upper protrusions and the plurality of lower protrusions is the same or different.

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