CN111102239B

CN111102239B - Disc type fan wheel structure

Info

Publication number: CN111102239B
Application number: CN201911174497.8A
Authority: CN
Inventors: 王得中; 李名哲; 郑敏生; 叶良轩
Original assignee: Asia Vital Components Co Ltd
Current assignee: Asia Vital Components Co Ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2021-09-10
Anticipated expiration: 2039-11-26
Also published as: CN111102239A

Abstract

The present invention provides a disc-shaped fan wheel structure, comprising a plate body, the plate body has an inner edge and an outer edge, the inner edge is connected to a hub through a plurality of connecting pieces, and the outer edge extends in a direction opposite to the hub, The plurality of connecting piece spacer rings are arranged on the outside of the hub and extend radially toward the inner edge of the plate body, wherein a top surface and a bottom surface are defined between the inner edge and the outer edge, and the top surface is provided with a plurality of upper protrusions The plurality of first gaps are arranged at intervals, and the plurality of first gaps are distributed between the plurality of upper convex bodies, and the periodic noise problem of the existing fan wheel is improved by the plurality of convex bodies.

Description

Disc type fan wheel structure

Technical Field

The invention relates to the field of cooling fans, in particular to a disc-shaped fan wheel structure.

Background

The existing fan wheel of fan uses active heat dissipation, mainly includes hub and plural blades set at intervals around the hub and extended radially outwards, there is flow channel between blades, when the fan wheel rotates, the blades drive fluid to flow. However, the conventional fan has problems of periodic noise (BPF: Blade Pass Frequency) caused by uneven installation or weight of each Blade or separation of airflow when the blades are operated, pulsating force of periodic air supply, wind shear generated by the blades, and mutual interference between flowing air.

Therefore, how to solve the above problems and disadvantages is a direction in which the present inventors and related manufacturers in the industry need to research and improve.

Disclosure of Invention

To solve the above problems, an object of the present invention is to provide a disc-type impeller structure that reduces the periodic noise caused by the blades.

Another object of the present invention is to provide a plurality of connecting members which can be selected as ribs or blades, if the ribs are selected to be a disk type fan wheel structure without blades, if the blades are selected to be a disk type fan wheel structure of a composite type.

The present invention also provides a disc-shaped impeller structure, in which the plurality of connecting members can be selected as ribs to drive airflow to flow in both forward rotation and reverse rotation.

To achieve the above object, the present invention provides a disc-type impeller structure, comprising:

the plate body is provided with an inner edge and an outer edge, the inner edge is provided with a plurality of connecting pieces at intervals corresponding to a hub and is connected with the hub through the plurality of connecting pieces, the outer edge extends towards the direction opposite to the hub, the plurality of connecting pieces are arranged between the hub and the inner edge of the plate body in a radial spacing ring mode, a top surface and a bottom surface are defined between the inner edge and the outer edge of the plate body, the top surface is provided with a plurality of upper convex bodies arranged at intervals, and a plurality of first gaps are distributed among the plurality of upper convex bodies.

The dish type impeller structure, wherein: the plurality of upper convex bodies are arranged and distributed at equal intervals and/or unequal intervals.

The dish type impeller structure, wherein: the plurality of upper protrusions and the plate body are integrally formed.

The dish type impeller structure, wherein: the plurality of upper convex bodies and the plate body are combined together by a combining means through independent monomers respectively.

The dish type impeller structure, 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.

The dish type impeller structure, wherein: the first axial height of each upper convex body is gradually higher or lower from the inner edge to the outer edge.

The dish type impeller structure, wherein: the first axial height of each convex body gradually becomes higher and lower or gradually becomes lower and higher from the inner edge to the outer edge.

The dish type impeller structure, wherein: the plate body is a single annular plate body, and the plate body, the hub and the connecting piece are integrally formed or non-integrally formed.

The dish type impeller structure, wherein: the plate body comprises a plurality of secondary plate body parts which jointly form an annular plate body.

The dish type impeller structure, 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.

The dish type impeller structure, wherein: the cross-sectional shape is circular, square, triangular, elliptical, pentagonal, hexagonal, arc-shaped, windmill-shaped or pentagonal star-shaped.

The dish type impeller structure, wherein: the arrangement distribution of the plurality of convex bodies is the same or different.

The dish type impeller structure, wherein: the plurality of upper protrusions are arranged radially or in a plurality of circles concentrically from the inner edge to the outer edge.

The dish type impeller structure, wherein: the plurality of protrusions are arranged in a plurality of geometric shapes from the inner edge to the outer edge.

The dish type impeller structure, 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.

The dish type impeller structure, wherein: the first outer diameter of the plurality of protrusions gradually increases or decreases from the inner edge to the outer edge.

The dish type impeller 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 plane.

The dish type impeller structure, wherein: the arrangement of the plurality of upper protrusions and the plurality of lower protrusions is the same or different.

The dish type impeller structure, wherein: the inner edge forms an air inlet side, the outer edge forms an air outlet side, and the connecting pieces are ribs or fan blades, wherein the top surface of the plate body is a plane or an inclined surface.

The present invention also provides a disc-type impeller 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;

a plate body having an inner edge and an outer edge, the inner edge surrounding the side wall facing the hub, the outer edge extending radially opposite to the hub, and a top surface and a bottom surface defined between the inner edge and the outer edge, the top surface having a plurality of upper protrusions arranged at intervals between the inner edge and the outer edge, and each upper protrusion having a first gap around it;

the connecting pieces are arranged between the side wall of the hub and the inner edge of the plate body, are radially spaced and radially extend and are provided with an inner end and an outer end, the inner end is connected with the side wall of the hub, and the outer end is connected with the inner edge of the plate body.

The dish type impeller structure, wherein: the bottom surface is provided with a plurality of lower protrusions which are arranged at intervals, and a second gap is arranged around each lower protrusion.

The dish type impeller structure, wherein: the inner edge forms an air inlet side, and the outer edge forms an air outlet side.

The dish type impeller structure, wherein: the connecting pieces extend from the hub to the plate body in the radial direction or extend from the plate body to the hub in the radial direction.

The invention also provides a disc-shaped fan wheel structure, which is arranged in a fan frame, the fan frame is provided with an air inlet and an air outlet, and the disc-shaped fan wheel structure is characterized by comprising:

a hub corresponding to the air inlet of the fan frame and having a plurality of connecting pieces extending in the direction opposite to the hub to form an outer end;

a plate body surrounding an outer periphery of the plurality of connecting pieces and connecting each outer end, wherein one surface of the plate body is provided with a plurality of upper convex bodies and a plurality of first gaps, each first gap is respectively distributed around each upper convex body to separate the plurality of adjacent upper convex bodies, and an air flow enters the fan frame from the air inlet and flows through the plurality of connecting pieces and the plate body and flows out of the fan frame from the air outlet.

The dish type impeller structure, wherein: the other surface of the plate body is provided with a plurality of lower convex bodies and a plurality of second gaps, and each second gap is respectively distributed around each lower convex body to separate the adjacent lower convex bodies.

In summary, with the above structure, and compared with the prior art, the disc-shaped impeller structure of the present invention reduces the problem of periodic noise caused by the impeller that is formed by all the blades, and the ribs are selected as the plurality of connecting members, so that the disc-shaped impeller structure can drive the airflow to flow no matter the impeller rotates forward or backward. If the plurality of connecting pieces are selected as the blades, the composite disc-shaped fan wheel structure is formed, so that the problem of periodic noise is reduced, and the air inlet flow can be maintained.

Drawings

FIGS. 1A and 1B are schematic perspective and top views of the present invention;

FIGS. 2A-2F are schematic views of the upper lugs of the present invention at the same or different first axial heights;

FIGS. 2G and 2H are schematic diagrams of other embodiments of the top surface of the plate body of the present invention;

FIGS. 3A to 3F are schematic views showing the arrangement and distribution of the protrusions according to the present invention in the same pattern or different patterns;

FIGS. 4A-4B are schematic diagrams of various embodiments of the first outer diameter of the upper spur of the present invention;

FIGS. 5A through 5H are schematic top cross-sectional views of various embodiments of the upper convex body of the present invention;

FIG. 5I is a perspective view of a dish-type impeller of the present invention with an upper convex body having a cross-sectional shape of different geometric shapes;

fig. 6A to 6B are schematic views illustrating an embodiment of the upper convex body and the plate body of the present invention as independent single bodies;

fig. 7A to 7D are schematic views of other embodiments of the plate body and the hub according to the present invention;

FIGS. 7E and 7F are schematic views illustrating various combinations and interferences between the connecting member and the plate body or the hub according to the present invention;

FIGS. 8A to 8C are schematic views of the present invention with a second protrusion;

FIGS. 8D and 8E are schematic views of alternative embodiments of the bottom surface of the plate body of the present invention;

FIG. 9 is a schematic view of another embodiment of the plurality of connectors of the present invention;

fig. 10A and 10B are schematic diagrams of an embodiment of the present invention disposed in a fan frame.

Description of reference numerals: a disc-shaped impeller 10; a hub 11; a top wall 111; a side wall 112; a slot 1121; a plate body 12; a secondary plate portion 120; an inner edge 121; a slot 1211; an outer edge 122; a top surface 123; a bottom surface 124; a convex body 125; first bottom end 1251; a first free end 1252; a plug portion 1253; a first gap 126; a first axial height h 1; a first outer diameter d 1; a lower convex body 127; a second bottom end 1271; a second free end 1272; a second gap 128; a second axial height h 2; a groove 129; a connecting member 13; an inner end 131; an interference section 1311; an outer end 132; the interference portion 1321; a frame body 20; an upper case 21; an air inlet 211; a lower case 22; a coupling seat 221; a sidewall 222; a plurality of through holes 223; a stator group 23; an air outlet 24; a flow channel 25; a rotor set 26; a shaft rod 27; and a bearing 28.

Detailed Description

The above objects, together with the structural and functional features thereof, are accomplished by the preferred embodiments according to the accompanying drawings.

Please refer to fig. 1A and fig. 1B, which are schematic perspective and top views of the present invention. As shown, a disc-type impeller 10 includes a hub 11 and a plate 12, the hub 11 has a top wall 111 and a side wall 112 extending perpendicularly from an outer periphery of the top wall 111, the top wall 111 is shown to be provided with a through hole in this embodiment, but it is not limited thereto, and it can also be a structure without through holes, the plate 12 is, for example, an annular plate, and is annularly disposed around the outer periphery of the hub 11, the plate 12 has an inner edge 121 and an outer edge 122, the inner edge 121 forms an air inlet side around the side wall 112 facing the hub 11, the outer edge 122 extends radially in a direction opposite to the hub 11 to form an air outlet side, and a top surface 123 and a bottom surface 124 are defined between the inner edge 121 and the outer edge 122 respectively on the upper and lower surfaces of the plate 12. The top surface 123 is provided with a plurality of protrusions 125 arranged at intervals, and a plurality of first gaps 126 are distributed between the plurality of protrusions 125 and/or around the plurality of protrusions 125.

A plurality of connecting members 13 are radially spaced around the hub 11 and the plate 12, each connecting member 13 having an inner end 131 and an outer end 132, the inner end 131 being connected to the sidewall of the hub, and the outer end 132 being connected to the inner edge 121 of the plate 12. In one implementation, the connecting members 13 are integrally formed with the hub 11 and the plate 12, for example, by plastic injection or 3D printing; or non-integral molding, by means of connecting means such as welding, ultrasonic welding, scarf joint, or gluing. Furthermore, the materials of the hub 11, the plate 12 and the connecting pieces 13 may be the same or different, wherein the materials are selected differently, for example, the hub 11 and the plate 12 are made of plastic, and the connecting pieces 13 are made of metal; or the plate 12 and the plurality of connecting pieces 13 are made of metal, and the hub is made of plastic; or the three are made of different metal materials.

Please refer to fig. 2A to fig. 2F, which are schematic diagrams illustrating the same or different first axial heights of the upper convex body according to the present invention. As shown, each of the upper protrusions 125 has a first bottom end 1251 and a first free end 1252, the first bottom end 1251 is connected to the top surface 123 of the plate body 12, the first free end 1252 extends upward, 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 varied according to the application requirements or the type of the fan frame. For example, in one implementation, as shown in fig. 2A and 2B, the first axial height h1 of each upper protrusion 125 gradually increases from the inner edge 121 to the outer edge 122, and the first free end 1252 of each upper protrusion 125 is horizontal (as shown in fig. 2A) or inclined (as shown in fig. 2B), wherein the first free end 1252 is inclined toward the hub direction in fig. 2B, but is not limited thereto, and may be inclined toward the opposite hub 11 direction, wherein the first axial height h1 of the first upper protrusion 125 near the inner edge 121 is lower than the first axial height h1 of the first upper protrusion 125 near the outer edge 122. In another implementation, the first axial height h1 of each first protrusion 125 is the same (as shown in FIG. 2C). In other embodiments, the first axial height h1 of each upper protrusion 125 becomes gradually lower from the inner edge 121 to the outer edge 122, i.e., the first axial height h1 of the upper protrusion 125 near the inner edge 121 is higher than the first axial height h1 of the upper protrusion 125 near the outer edge 122 (fig. 2D); either becoming progressively higher and lower, i.e., the first axial height h1 of the upper convex body 125 near the inner edge 121 and the outer edge 122 is higher than the middle upper convex body 125 (see fig. 2E), or becoming progressively lower and higher, i.e., the first axial height h1 of the upper convex body 125 near the inner edge 121 and the outer edge 122 is lower than the middle upper convex body 125 (see fig. 2F).

In addition, as shown in fig. 2G and fig. 2H, the above-mentioned embodiments show that the top surface 123 of the plate body 12 is a plane, but not limited thereto. In other embodiments, the top surface 123 of the plate 12 may be an inclined surface, such as an inclined surface toward the hub (as shown in fig. 2G) or an inclined surface toward the opposite hub (as shown in fig. 2H), in which the plurality of protrusions 125 are gradually raised (as shown in fig. 2G) or lowered (as shown in fig. 2H) from the inner edge 121 toward the outer edge 122. Although the upper protrusions 125 are shown to have the same first axial height h1, the present invention is not limited to this, and the present invention is also applicable to an arrangement of the upper protrusions 125 having different first axial heights h 1.

Please refer to fig. 3A to fig. 3F, which are schematic diagrams illustrating the same and/or different arrangement distribution of the protrusions according to the present invention. Referring to fig. 1B, the plurality of protrusions 125 are arranged in a plurality of concentric circles from the inner edge 121 to the outer edge 122, but not limited thereto. In other embodiments, the plurality of protrusions 125 are radially arranged from the inner edge 121 to the outer edge 122 (see fig. 3A and 3B), wherein fig. 3A shows a straight radial arrangement and fig. 3B shows a curved radial arrangement. In addition, the plurality of protrusions 125 may also be 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 embodiments, such as fig. 3D and 3E, the top surface of the plate is divided into several regions, and the upper protrusions 125 in each region are arranged in different patterns or manners, such as the upper protrusions 125 in some regions are arranged in a straight radial pattern and the upper protrusions 125 in other regions are arranged in a curved radial pattern (e.g., fig. 3D); or some regions of the upper protrusions 125 are arranged in a triangle shape and the rest regions of the upper protrusions 125 are arranged in a curved radial shape (as shown in fig. 3E); or some regions of the upper protrusions 125 are arranged in a triangle and the remaining regions of the upper protrusions 125 are arranged in a straight radial pattern (see fig. 3F). Furthermore, each of the above embodiments shows that the plurality of protrusions 125 may be arranged at equal intervals (as shown in fig. 1B, 3A, and 3B) and/or at unequal intervals (as shown in fig. 3C, 3E, and 3F), so the density of the plurality of first gaps 126 may be adjusted and set as needed, for example, the density is more sparse as the distance of the plurality of protrusions 125 is larger, and the density is more dense as the distance is smaller.

Please refer to fig. 4A to fig. 4B, which are schematic diagrams illustrating various embodiments of the first outer diameter of the upper convex body according to the present invention. Referring also to FIG. 1B, each of the plurality of upper protrusions 125 has a first outer diameter d1, the first outer diameter d1 defines a linear distance between two opposite outermost tangents, and the first outer diameter d1 of each upper protrusion 125 is the same in this figure. But is not limited thereto. In other embodiments, as shown in fig. 4A, the first outer diameter d1 of the plurality of upper protrusions 125 gradually increases from the inner edge 121 to the outer edge 122 of the plate 12, i.e., the first outer diameter d1 of the upper protrusion 125 near the outer edge 122 is larger than the first outer diameter d1 of the upper protrusion 125 near the inner edge 121. Alternatively, as shown in fig. 4B, the first outer diameter d1 of the plurality of upper protrusions 125 gradually decreases from the inner edge 121 to the outer edge 122 of the plate 12, i.e., the first outer diameter d1 of the upper protrusion 125 near the inner edge 121 is larger than the first outer diameter d1 of the upper protrusion d1 near the outer edge 122.

Please refer to fig. 5A to 5G for top view, cross-sectional views of the upper convex body of the present invention, and fig. 5I is a perspective view of the disc-shaped impeller with the upper convex body having different cross-sectional shapes according to the present invention. As shown, each of the protrusions 125 has a cross-sectional shape parallel to the plate 12 (fig. 1A), which is any geometric shape, and the embodiments are shown as circles (fig. 5A), such that each protrusion 125 is shown as a cylinder. But not limited thereto, in other embodiments, the cross-sectional shape is, for example, triangular (as in fig. 5B), quadrangular (as in fig. 5C), crescent (as in fig. 5D), elliptical (as in fig. 5E), hexagonal (as in fig. 5F), windmill (as in fig. 5G), pentagonal (as in fig. 5H), or the like. In addition, as shown in fig. 5I, in another embodiment, the cross-sectional shape of the upper convex body 125 of the top surface 123 of one plate body 12 may be different, for example, but not limited to, the cross-sectional shape of a part of the upper convex body 125 is circular, a part of the upper convex body is triangular, a part of the upper convex body is quadrangular, a part of the upper convex body is crescent moon-shaped, and the rest of the upper convex body is pentagonal star-shaped.

Please refer to fig. 6A to fig. 6B, which are schematic diagrams illustrating an embodiment of the upper convex body and the plate body of the present invention as separate units. Referring to fig. 1A and fig. 2A together, the above-mentioned upper protrusions 125 and the plate 12 are integrally formed by plastic injection or 3D printing, i.e. the plurality of upper protrusions 125 are directly formed on the top surface 123 of the plate 12. However, in another embodiment, as shown in fig. 6A and 6B, the plurality of protrusions 125 and the board 12 are separately and individually combined together by a combining means, in this figure, the top surface 123 of the board 12 is shown to be provided with a plurality of spaced grooves 129, and each protrusion 125 is provided with a plug-in portion 1253 correspondingly plugged into the groove 127. In other embodiments, the plurality of protrusions 125 are bonded to the top surface 123 of the board 12 by bonding means, such as glue or welding.

Please refer to fig. 7A to fig. 7D, which are schematic diagrams illustrating another embodiment of the combination of the plate body and the hub according to the present invention. As shown in fig. 1A and 1B, the plate 12, the hub 11 and the connecting members 13 are integrally formed, but not limited thereto. In another embodiment, as shown in fig. 7A, the plate 12 and the hub 11 are separately formed as a single non-integral structure, the connecting members 13 are integrally formed with the plate 12, the outer ends 132 of the connecting members 13 are integrally formed with the inner edge 121 of the plate 12, and the inner ends 131 extend radially toward the hub 11 and are connected to the side walls 112. In another embodiment, as shown in fig. 7B, the plate 12 includes a plurality of plate portions 120 (for example, but not limited to, seven plate portions 120 are shown in the figure), the plate portions 120 form an annular plate, and each plate portion 120 is connected to the sidewall 112 of the hub 11 via at least one connecting member 13. Also, the upper protrusions 125 of each sub-plate portion 120 may be arranged the same as or different from the upper protrusions 125 of another sub-plate portion 120, for example, the pitch or outer diameter or arrangement or cross-sectional shape or first axial height may be the same or different.

The above embodiments show the plurality of connecting members 13 integrally formed with the plate body 12, but are not limited thereto. As shown in fig. 7C and 7D, the connecting members 13 are integrally formed with the hub 11, the inner end 131 of each connecting member 13 is integrally formed with the sidewall 112 of the hub 11, and the outer end 132 extends radially toward the plate 12 and is connected to the inner edge 121.

Please refer to fig. 7E and fig. 7F for further illustration of various interference combinations between the connecting member and the plate or the hub according to the present invention. As shown in the drawings, in order to enable the connecting member 13 to be combined with the side wall 112 of the hub 11 or the connecting member 13 to be combined with the inner edge 121 of the plate body 12, in addition to welding, ultrasonic welding or gluing, welding, ultrasonic welding or gluing may be performed after interference is formed at the connecting position. For example, the side wall 112 of the hub 11 is provided with a slot 1121 which is embedded or inserted by an interference part 1311 of the inner end 131 of the connecting piece 13; alternatively, the inner edge 121 of the plate 12 is provided with a slot 1211 to be engaged or plugged by an interference portion 1321 of the outer end 132 of the connector 13.

Please refer to fig. 8A, fig. 8B and fig. 8C for a schematic diagram of the present invention with a second protrusion. As shown in fig. 1A and 1B, in another embodiment, the bottom surface of the plate body 12 is provided with a plurality of lower protrusions 127, the plurality of lower protrusions 127 are spaced apart and a plurality of second gaps 128 are distributed between the plurality of lower protrusions 127 or around each lower protrusion 127, each lower protrusion 127 has a second bottom end 1271 connected to the bottom surface 124 and a second free end 1272 protruding downward, and a second axial height h2 is defined between the second bottom end 1271 and the second free end 1272. The lower protrusion 127 is similar to the above-mentioned upper protrusion 125 and will not be described in detail. It should be noted that the plurality of upper protrusions 125 and the plurality of lower protrusions 127 may be arranged in the same board 12, for example, the plurality of upper protrusions 125 and the plurality of lower protrusions 127 are arranged in a plurality of concentric circles from the inner edge 121 to the outer edge 122, and the first axial height h1 and the second axial height h2 are gradually higher from the inner edge 121 to the outer edge 122 (see fig. 8A and 8B). However, in other embodiments, the plurality of upper protrusions 125 and the plurality of lower protrusions 127 may be disposed differently on the same plate 12, 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, but the plurality of lower protrusions 127 are arranged in a radial shape as shown in fig. 8C.

In addition, referring to fig. 8D and 8E, the bottom surface 124 of the plate 12 is a plane in the above embodiment, but not limited thereto. In another embodiment, the bottom surface 124 of the plate 12 may be an inclined surface, and the lower protrusions 127 are arranged to gradually rise from the inner edge 121 to the outer edge 122 (as shown in fig. 8D). In yet another embodiment, the top surface 123 and the bottom surface 124 of the plate body 12 are inclined surfaces, and the upper convex body 125 and the lower convex body 127 are gradually raised from the inner edge 121 to the outer edge 122. Although the upper and

lower protrusions

125, 127 are shown as having the same first and second axial heights h1, h2, respectively, the invention is not limited thereto, and may be applied to the arrangement of the upper protrusions 125 with different first axial heights h1 and/or the lower protrusions 127 with different second axial heights h 2.

In the drawings of the above embodiments, the plurality of connecting members 13 are ribs to form a vaneless disk type impeller structure, but the present invention is not limited thereto. Fig. 9 is a schematic view of another embodiment of the plurality of connecting members of the present invention, and as shown in the figure, the plurality of connecting members 13 may also be in the form of fan blades, which are shown as centrifugal fan blades in the figure, and the plurality of connecting members 13 and the plate 12 form a composite disc-type fan wheel structure. In such an implementation, the plurality of connecting members 13 in the form of centrifugal fan blades partially or entirely correspond to an air inlet (as shown in fig. 10A and 10B) to maintain the air inlet flow rate of the fluid, and then the periodic noise problem is reduced by flowing the fluid through the plate body 12.

Please refer to fig. 10A and 10B, which are schematic diagrams illustrating an embodiment of the present invention disposed in a fan frame. As shown in fig. 8A to 8C, a frame 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 combining seat 221, a sidewall 222, an air outlet 24 and a flow channel 25 are defined between the upper shell 21 and the lower shell 22, the combining seat 221 is sleeved on a stator set 23, and a plurality of through holes 223 are selectively formed around the combining seat 221, in this figure, the sidewall 222 is shown to be disposed around the lower shell 22 and vertically extend to connect the upper shell 21, and the flow channel 25 is connected to the air outlet 24.

The inner surface of the hub 11 of the disc-type impeller 10 is provided with a rotor set 26 (including an iron shell and a magnet) and a shaft rod 27, and the shaft rod 27 is inserted into at least one bearing 28 in the coupling seat 221 to support the disc-type impeller 10 on the coupling seat 221, so that the rotor set 26 corresponds to the stator set 23. The top wall 111 of the hub 11 and the plurality of connecting members 13 correspond to the air inlet 211 of the frame 20, wherein the diameter of the air inlet 211 of the frame 20 is, for example, but not limited to, larger than the diameter of the upper wall 111 of the hub 11.

When the disc-type impeller 10 rotates, a fluid is driven to flow from the air inlet 211, through the plurality of connectors 13, into the inner edge 121 (or referred to as air inlet side) of the plate 12, through the plurality of protrusions 125 and the first gap 126, and then out from the outer edge 122 (or referred to as air outlet side), and then out from the flow channel 25 toward the air outlet 24. Furthermore, when the disc fan 10 rotates, the air flow is driven to enter from the plurality of through holes 223 through the plurality of connecting members 13 and the inner edge 121 (or referred to as air inlet side) of the plate 12, then passes through the plurality of downward protrusions 127 and the second gap 128, then flows out from the outer edge 122 (or referred to as air outlet side), and then flows out from the air outlet 24 through the flow channel 25.

In summary, with the above structure, compared with the prior art, the disc-shaped impeller 10 of the present invention reduces the problem of periodic noise caused by the impeller that is formed by all the blades, and the ribs are selected as the plurality of connecting members, so as to achieve the disc-shaped impeller structure that can drive the airflow to flow regardless of the forward rotation or the reverse rotation. If the plurality of connecting members 13 are selected as blades, the composite type disc-shaped impeller structure is formed, which not only reduces the periodic noise problem, but also maintains the air intake flow.

The present invention has been described in detail, but the above description is only a preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of the present invention should also be covered by the scope of the present invention.

Claims

1. a disc type fan wheel structure, is characterized in that, comprises:

A plate body has an inner edge and an outer edge, the inner edge is provided with a plurality of connecting pieces at intervals corresponding to the hub, and is connected to the wheel hub through the plurality of connecting pieces, the outer edge extends in a direction opposite to the wheel hub, the plurality of The radial spacer ring of the connecting piece is arranged between the hub and the inner edge of the plate body, wherein a top surface and a bottom surface are defined between the inner edge and the outer edge of the plate body, and the top surface is provided with a plurality of spaced apart and a plurality of first gaps are distributed among the plurality of upper convex bodies, and the plurality of upward convex bodies are convex pillars.

2 . The disc-shaped fan wheel structure according to claim 1 , wherein the plurality of upper convex bodies are arranged and distributed at equal intervals and/or unequal intervals. 3 .

3 . The disc-shaped fan wheel structure according to claim 1 , wherein the plurality of upper protrusions and the plate body are integrally formed. 4 .

4 . The disc-shaped fan wheel structure according to claim 1 , wherein the plurality of upper protrusions and the plate body are combined together by a combination of independent monomers. 5 .

5. The disc-shaped fan wheel structure according to claim 1, 2, 3 or 4, wherein the plurality of upper protrusions respectively have a first bottom end and a first free end, a first axial height It is defined between the first bottom end and the first free end, and the first axial height of each upper protrusion is the same or different.

6 . The disc-shaped fan wheel structure of claim 5 , wherein the first axial height of each upper protrusion gradually increases or decreases from the inner edge to the outer edge. 7 .

7 . The disc-shaped fan wheel structure of claim 5 , wherein the first axial height of each upper protrusion gradually increases and then decreases from the inner edge to the outer edge, or gradually decreases and then changes. 8 . high.

8 . The disc-shaped fan wheel structure according to claim 1 , wherein the plate body is a single annular plate body, and the plate body, the hub and the connecting piece are integrally formed or non- integrally formed. 9 .

9 . The disc-shaped fan wheel structure according to claim 1 , wherein the plate body comprises a plurality of plate body parts, and the plurality of plate body parts together form an annular plate body. 10 .

10 . The disc-shaped fan wheel structure according to claim 1 , wherein the plurality of upper protrusions have a cross section parallel to the plate body, and the cross-sectional shapes of the plurality of upper protrusions are the same or different. 11 .

11. The disc-shaped fan wheel structure according to claim 10, 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.

12 . The disc-shaped fan wheel structure according to claim 1 , wherein the arrangement and distribution of the plurality of convex bodies are the same or different. 13 .

13 . The disk-shaped fan wheel structure of claim 12 , wherein the plurality of upper protrusions are arranged and distributed in a radial shape or a plurality of concentric circles from the inner edge to the outer edge. 14 .

14 . The disc-shaped fan wheel structure of claim 12 , wherein the plurality of upper protrusions are arranged and distributed in a plurality of geometric shapes from the inner edge to the outer edge. 15 .

15 . The disc-shaped fan wheel structure of claim 1 , wherein the plurality of upper protrusions respectively have a first outer diameter, and the first outer diameters of each upper protrusion are the same or different. 16 .

16 . The disc-shaped fan wheel structure of claim 15 , wherein the first outer diameters of the plurality of upper protrusions gradually increase or decrease from the inner edge to the outer edge. 17 .

17. The disc-shaped fan wheel structure according to 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 between the plurality of lower convex bodies, wherein the bottom surface is a plane or an inclined plane.

18 . The disc-shaped fan wheel structure of claim 17 , wherein the arrangement of the plurality of upper convex bodies and the plurality of lower convex bodies is the same or different. 19 .

19. The disc-shaped fan wheel structure of claim 1, wherein the inner edge forms an air inlet side, the outer edge forms an air outlet side, and the plurality of connecting pieces are ribs or fan blades, wherein the The top surface of the plate body is a flat surface or an inclined surface.

20. A disc-shaped fan wheel structure, 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 has an inner edge and an outer edge, the inner edge surrounds the side wall facing the hub, the outer edge extends radially opposite to the hub, and a top surface and a bottom surface are defined on the inner edge and Between the outer edges, the top surface is provided with a plurality of upper protrusions arranged at intervals between the inner edge and the outer edge, and each upper protrusion has a first gap around it, and the plurality of upper protrusions are convex columns ;

A plurality of connecting pieces are arranged between the side wall of the wheel hub and the inner edge of the plate body, the plurality of connecting pieces are radially spaced and radially extended and have an inner end and an outer end, and the inner end is connected to the wheel hub the side wall, the outer end is connected to the inner edge of the plate body.

21 . The disc-shaped fan wheel structure of claim 20 , 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. 22 .

22 . The disc-shaped 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 .

23 . The disc-shaped fan wheel structure of claim 20 , wherein the inner edge forms an air inlet side, and the outer edge forms an air outlet side. 24 .

24. The disc-shaped fan wheel structure of claim 20, wherein the plurality of connecting elements radially extend from the hub to the plate body or radially extend from the plate body to the hub.

25. A disc-shaped fan wheel structure, which is arranged in a fan frame, and the fan frame has an air inlet and an air outlet, wherein the disc-shaped fan wheel structure comprises:

a hub, corresponding to the air inlet of the fan frame, and has a plurality of connecting pieces, the plurality of connecting pieces extend toward the opposite direction of the hub to form an outer end;

A plate body surrounds an outer periphery of the plurality of connecting pieces and connects each outer end, one surface of the plate body is provided with a plurality of upper protrusions and a plurality of first gaps, and each first gap is distributed on each The periphery of the convex body is spaced from the plurality of adjacent convex bodies. An air flow enters the fan frame from the air inlet and flows through the plurality of connecting pieces and the plate body and flows out of the fan frame from the air outlet. The plurality of upward convex bodies The system is convex.

26. The disc-shaped fan wheel structure according to claim 25, wherein the other side of the plate body has a plurality of lower protrusions and a plurality of second gaps, and each second gap is respectively distributed in the area of each lower protrusion. Surrounded by adjacent convex bodies at intervals.

27 . The disc-shaped fan wheel structure of claim 26 , wherein the arrangement of the plurality of upper convex bodies and the plurality of lower convex bodies is the same or different. 28 .