CN218509754U - Axial fan and ceiling fan - Google Patents
Axial fan and ceiling fan Download PDFInfo
- Publication number
- CN218509754U CN218509754U CN202222803879.6U CN202222803879U CN218509754U CN 218509754 U CN218509754 U CN 218509754U CN 202222803879 U CN202222803879 U CN 202222803879U CN 218509754 U CN218509754 U CN 218509754U
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- hub
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- blade
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Abstract
An axial fan and a ceiling fan, the axial fan comprises a motor, a shell with an opening at one end and fan blades, the fan blades comprise a hub with an opening at one end, a shaft seat arranged in the hub, radial reinforcing rib plates for connecting the shaft seat with the hub and blades, and the connecting ends of the blades and the hub are spirally lifted; the motor is fixed in the shell; the root of blade and wheel hub junction spiral shell screwing in is equipped with the curved surface shape fracture portion of preapring for an unfavorable turn of events. A ceiling fan includes a hanger rod and an axial fan. The curved surface shape deformation-preventing fracture part is in smooth transition at the joint of the blade and the hub, does not influence airflow flow, has the function of tail pressure relief, effectively prevents the connecting sheet from being fractured, and prolongs the service life.
Description
Technical Field
The utility model relates to a fan, especially an axial fan.
Background
At present, chinese utility model patent number is 201822272774.6, the name is strenghthened type axial compressor fan blade, and the publication number of authorizing is CN209430484, discloses a strenghthened type axial compressor fan blade, and it includes wheel hub 1 to and a plurality of blades 2 of a body coupling on wheel hub 1 outside wall and along circumference regular arrangement. The number of the blades 2 is three, the three blades 2 are regularly arranged along the circumferential direction of the hub 1 at equal circle center angles, and the circle center angle is 120 degrees. The inner edges of the blades 2 are axially inclined with respect to the outer side wall surface of the hub 1. The inner edge of the blade 2 is connected and reinforced with the outer side wall surface of the hub 1 through a plurality of first reinforcing ribs 21 and a plurality of second reinforcing ribs 22. The first reinforcing ribs 21 connect the pressure surface of the blade 2 and the outer side wall surface of the hub 1, and a plurality of first reinforcing ribs 21 are arranged in a clearance mode. The second reinforcing ribs 22 connect the suction surface of the blade 2 and the outer side wall surface of the hub 1, and a plurality of second reinforcing ribs 22 are arranged in a clearance. The first reinforcing rib 21 and the second reinforcing rib 22 are both triangular reinforcing ribs. There are problems in that: when the fan blade rotates to work, air enters from the back of the fan blade and circulates along gaps between adjacent blades, the air flows forwards in an accelerated manner under the thrust action of the blades, and the first reinforcing rib 22 and the second reinforcing rib 22 are arranged on the outer side wall surface of the hub in a triangular manner, and the planes of the reinforcing ribs are intersected with the air flow direction, so that the reinforcing ribs block the air flow speed, and the energy efficiency of the axial flow fan blade is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: provided is an axial fan which has a smooth air flow and effectively prevents the breakage of the joint between a blade and a hub.
The utility model discloses a realize like this: an axial fan comprises a motor, a shell with an opening at one end and fan blades, wherein each fan blade comprises a hub with an opening at one end, a shaft seat arranged in the hub, a radial reinforcing rib plate for connecting the shaft seat with the hub and blades, and the connecting ends of the blades and the hub spirally rise; the motor is fixed in the shell; it is characterized in that: the root of blade and wheel hub junction spiral shell screwing in is equipped with the curved surface shape fracture portion of preapring for an unfavorable turn of events.
Preferably: the curved surface-shaped deformation-preventing fracture part and the hub form a pressure relief groove with a lower opening end on a pressure surface.
Preferably: and an end reinforcing plate extending to the opening end along the inner surface of the hub is arranged on the radial outer side of the radial reinforcing rib plate, and the radial inner side surface of the end reinforcing plate is an inclined surface.
Preferably: the reinforcing column is arranged along the height direction of the end reinforcing plate and the radial reinforcing rib plate.
Preferably: the reinforcing column is cylindrical.
Preferably: the shell is sealed and provided with an air inlet hole;
the opening end of the hub extends into the shell, an annular air outlet is formed by a gap between the hub and the opening end of the shell, and the air inlet hole, the shell and the annular air outlet form a motor heat dissipation air duct.
A ceiling fan is characterized in that: comprises a suspender and the axial flow fan.
The utility model relates to an axial fan, curved surface shape preapre for an unfavorable turn of events shape fracture portion is smooth transition in blade and wheel hub junction, does not influence the air current and flows, but also plays afterbody pressure release effect, prevents effectively that the connection piece from splitting, has prolonged life.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a perspective sectional view of the present invention.
Fig. 3 is an exploded perspective view of the present invention.
Fig. 4 is a perspective view of the fan blade of the present invention.
Fig. 5 is a second perspective view of the fan blade of the present invention.
Fig. 6 is a third perspective view of the fan blade of the present invention.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
As shown in fig. 1, an axial flow fan includes a motor 1, a housing 2 with an opening at one end, and a fan blade 3, wherein the fan blade 3 includes a hub 31 with an opening at one end, a shaft seat 32 arranged in the hub, a radial reinforcing rib plate 33 connecting the shaft seat and the hub, and a blade 34, and a connecting end of the blade 34 and the hub 31 is spirally raised with a closed end of the hub 31 as a reference; a fixed seat frame plate 11 of the motor 1 is fixed with a shell of the shell 2, and a gap is reserved between the motor 1 and the shell 2; the shaft of the motor 1 is fixed with the shaft seat 32;
the root that blade 34 and wheel hub 31 junction spiral rise is equipped with the curved surface shape and prevents deformation rupture portion 35, and the curved surface shape is prevented deformation rupture portion 35 and is towards the suction surface by the pressure surface protrudingly, and the intersection of curved surface shape is prevented becoming dish rupture portion 35 and blade and wheel hub 31 and is the smooth transition, and the air current is unobstructed, and the air current is smooth and easy.
The curved surface-shaped deformation-preventing fracture part 35 and the hub 31 form a pressure relief groove with a lower opening end on a pressure surface. The pressure at the joint is reduced, and the service life is prolonged.
As a further improvement of the utility model: an end reinforcing plate 331 extending towards the opening end of the hub 31 along the inner surface of the hub 31 is arranged on the radial outer side of the radial reinforcing rib plate 33, and the radial inner side surface 332 of the end reinforcing plate 331 is an inclined surface, namely, an acute included angle is formed between the radial inner inclined surface 332 and the horizontal plane of the radial outer side.
The reinforcing column 333 is arranged along the height direction of the end reinforcing plate 331 and the radial reinforcing rib plate 33;
the reinforcing column 333 is cylindrical. By adopting the structure, the radial reinforcing rib plate 33 is prevented from shaking, the fan blade is prevented from shaking, and the noise is reduced.
As the utility model discloses further improve: an air inlet hole 21 is formed in the shell 2 in a closed mode;
the open end of the wheel hub 31 extends into the open end of the shell 2, a gap between the wheel hub 31 and the open end of the shell 2 forms an annular air outlet, and the air inlet hole 21, the inner cavity of the shell 2 and the annular air outlet form a motor heat dissipation air duct. By adopting the structure, the fan blades 34 rotate, air flows from the shell 2 to the fan blades, and finally flows out from the annular air outlet through the air inlet holes 21, the inner cavity of the shell and the gap between the motor and the inner cavity, so that the heat dissipation of the motor 1 is realized.
As shown in fig. 1 and 2, the ceiling fan comprises a suspender 4 and an axial flow fan, wherein the suspender 4 is fixed with the closed end of a shell 2.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. An axial fan comprises a motor, a shell with an opening at one end and fan blades, wherein each fan blade comprises a hub with an opening at one end, a shaft seat arranged in the hub, a radial reinforcing rib plate for connecting the shaft seat with the hub and a blade, and the connecting end of the blade and the hub rises spirally; the motor is fixed in the shell; the method is characterized in that: the root of blade and wheel hub junction spiral shell screwing in is equipped with the curved surface shape fracture portion of preapring for an unfavorable turn of events.
2. The axial flow fan of claim 1, wherein: the curved surface deformation-preventing fracture part and the hub form a pressure relief groove with a lower opening end on the pressure surface.
3. An axial-flow fan according to claim 1 or 2, wherein: and an end reinforcing plate extending to the opening end along the inner surface of the hub is arranged on the radial outer side of the radial reinforcing rib plate, and the radial inner side surface of the end reinforcing plate is an inclined surface.
4. The axial flow fan of claim 3, wherein: the reinforcing column is arranged along the height direction of the end reinforcing plate and the radial reinforcing rib plate.
5. The axial flow fan of claim 4, wherein: the reinforcing column is cylindrical.
6. An axial-flow fan according to claim 1 or 2, wherein: an air inlet hole is formed in the shell in a closed mode;
the opening end of the hub extends into the shell, an annular air outlet is formed by a gap between the hub and the opening end of the shell, and the air inlet hole, the shell and the annular air outlet form a motor heat dissipation air duct.
7. A ceiling fan, its characterized in that: comprising a boom and an axial fan according to any of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222803879.6U CN218509754U (en) | 2022-10-24 | 2022-10-24 | Axial fan and ceiling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222803879.6U CN218509754U (en) | 2022-10-24 | 2022-10-24 | Axial fan and ceiling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218509754U true CN218509754U (en) | 2023-02-21 |
Family
ID=85217340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222803879.6U Active CN218509754U (en) | 2022-10-24 | 2022-10-24 | Axial fan and ceiling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218509754U (en) |
-
2022
- 2022-10-24 CN CN202222803879.6U patent/CN218509754U/en active Active
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