CN-224200858-U - Wind wheel, fan and dehumidifier

Abstract

The application relates to a wind wheel, a fan and a dehumidifier, wherein the wind wheel comprises a top ring, a bottom ring and a plurality of fan blades, wherein the top ring is provided with an annular inclined plane extending downwards obliquely from the inner edge to the outer edge, the bottom ring is coaxially and oppositely arranged with the top ring, the fan blades are circumferentially arranged at intervals along the top ring and the bottom ring, the bottom ends of the fan blades are connected with the bottom ring, and the top ends of the fan blades are connected with the top ring through the annular inclined plane. According to the wind wheel, the fan and the dehumidifier, the top ring is designed to be provided with the annular inclined surface with the inner edge extending downwards to the outer edge, so that the top ends of the blades can be connected with the top ring through the annular inclined surface, the effective contact area between the blades and the top ring is effectively increased, the overall structural strength of the wind wheel is enhanced, the wind wheel can effectively resist centrifugal force generated in the rotating process and load transmitted by the blades, the structural deformation risk is effectively reduced, and the reliability and the service life of a product are improved.

Inventors

• LI YUNFENG
• ZHANG DONGYE
• ZHANG YAOHUI
• YE SHENGHUA

Assignees

• 宁波德业日用电器科技有限公司

Dates

Publication Date

20260505

Application Date

20250526

Claims (10)

1. 1. A wind turbine, comprising: A top ring having an annular inclined surface extending obliquely downward from an inner edge to an outer edge; the bottom ring is coaxially and oppositely arranged with the top ring; the fan blades are arranged at intervals along the circumferential directions of the top ring and the bottom ring; the bottom ends of the blades are connected to the bottom ring, and the top ends of the blades are connected to the top ring through the annular inclined plane.
2. 2. The wind wheel according to claim 1, wherein the top ends of the blades are provided with inclined portions corresponding to the annular inclined surfaces, and the blades are fixedly connected to the annular inclined surfaces through the inclined portions.
3. 3. A wind wheel according to claim 2, wherein the inclined portion is located at the outer edge of the blade tip.
4. 4. The wind rotor of claim 1, wherein the annular ramp is an outwardly opening arcuate ramp.
5. 5. The wind wheel according to claim 1, wherein the surface of the top ring on the side facing away from the annular inclined surface is an outwardly opened cambered surface.
6. 6. The wind wheel according to claim 1, wherein the bottom ends of the blades extend out to form an extension part relative to the bottom ring, and an arc-shaped transition part inclining upwards is arranged at the outer edge position of the extension part.
7. 7. The wind wheel of claim 6, wherein the junction of the arcuate transition portion and the bottom ring is rounded.
8. 8. The wind wheel according to any of claims 1-7, wherein the top ring, bottom ring and plurality of said blades are of an integrally injection molded construction.
9. 9. A wind turbine comprising a wind rotor according to any one of claims 1-8.
10. 10. A dehumidifier comprising the blower of claim 9.

Description

Wind wheel, fan and dehumidifier Technical Field The application relates to the technical field of wind wheels, in particular to a wind wheel, a fan and a dehumidifier. Background In the prior art, wind wheels, in particular centrifugal or cross-flow wind wheels, are core components in various fluid machines such as fans, air conditioners, dehumidifiers, air purifiers and the like, and the main function of the wind wheels is to convey or boost gas through rotating blades. The top and bottom rings of a conventional wind turbine are typically designed as flat, annular sheet-like structures, and the top and bottom ends of the blades are also typically flat and connected to the two flat rings in an approximately perpendicular or end-on fit. However, the conventional structure has some inherent disadvantages that firstly, the connection area (usually line contact or small area surface contact) between the top ends of the blades and the straight top ring can bear larger centrifugal force and pneumatic load when the wind wheel rotates at high speed, the load easily generates stress concentration at the connection point, the connection strength is reduced, the blades are loose and even break after long-time running, the running stability and the service life of the wind wheel are affected, and secondly, the structural rigidity of the conventional straight circular ring-shaped top ring is limited, particularly under the condition of larger diameter or thinner material, the centrifugal force generated by high-speed rotation and the force transmitted by the blades can cause the top ring to deform to a certain extent, and further the dynamic balance and the pneumatic performance of the whole wind wheel are affected. Disclosure of utility model In order to solve the problems, the application provides a wind wheel, a fan and a dehumidifier with improved structural strength. To achieve the above object, in a first aspect, an embodiment of the present application provides a wind turbine, including: A top ring having an annular inclined surface extending obliquely downward from an inner edge to an outer edge; the bottom ring is coaxially and oppositely arranged with the top ring; the fan blades are arranged at intervals along the circumferential directions of the top ring and the bottom ring; the bottom ends of the blades are connected to the bottom ring, and the top ends of the blades are connected to the top ring through the annular inclined plane. Preferably, the top end of the fan blade is provided with an inclined part corresponding to the position of the annular inclined plane, and the fan blade is fixedly connected to the annular inclined plane through the inclined part. Preferably, the inclined part is positioned at the outer edge of the top end of the fan blade. Preferably, the annular inclined surface is an arc inclined surface with an outward opening. Preferably, the surface of one side of the top ring away from the annular inclined surface is an arc surface with an outward opening. Preferably, the bottom ends of the fan blades extend out to form an extension part relative to the bottom ring, and an arc-shaped transition part inclining upwards is arranged at the outer edge of the extension part. Preferably, the joint of the arc-shaped transition part and the bottom ring is in smooth transition. Preferably, the top ring, the bottom ring and the plurality of fan blades are of an integral injection structure. In a second aspect, an embodiment of the present application provides a fan, including a wind wheel according to any one of the embodiments of the first aspect. In a third aspect, an embodiment of the present application provides a dehumidifier, including the blower according to any one of the embodiments of the second aspect. According to the wind wheel, the fan and the dehumidifier, the top ring is designed to be provided with the annular inclined surface with the inner edge extending downwards to the outer edge, so that the top ends of the blades can be connected with the top ring through the annular inclined surface, the effective contact area between the blades and the top ring is effectively increased, the overall structural strength of the wind wheel is enhanced, the wind wheel can effectively resist centrifugal force generated in the rotating process and load transmitted by the blades, the structural deformation risk is effectively reduced, and the reliability and the service life of a product are improved. Drawings Fig. 1 is a schematic perspective view of a wind turbine according to an embodiment of the present application. Fig. 2 is an enlarged schematic view at a in fig. 1. Fig. 3 is a schematic plan view of a wind turbine according to an embodiment of the present application. Fig. 4 is a cross-sectional view at A-A in fig. 3. Wherein, top ring 10, annular inclined surface 11, cambered surface 12, bottom ring 20, fan blade 30, incline portion 31, arc transition portion 32. Detailed Description The p