Wind wheel, fan and dehumidifier

Abstract

The utility model relates to a wind wheel, a fan and a dehumidifier, and the wind wheel comprises a top ring which is provided with an annular inclined surface which obliquely extends downwards from the inner edge to the outer edge; the bottom ring and the top ring are coaxially and oppositely arranged; the multiple fan blades are arranged at intervals in the circumferential direction of the top ring and the bottom ring; wherein the bottom end of each fan blade is connected to the bottom ring, and the top end of each fan blade is connected to the top ring through an annular inclined plane. According to the wind wheel, the draught fan and the dehumidifier, the top ring is designed to be provided with the annular inclined face extending downwards from the inner edge to the outer edge, the top ends of the fan blades can be connected with the top ring through the annular inclined face, the effective contact area between the blades and the top ring is effectively increased, and the overall structural strength of the wind wheel is enhanced; the wind wheel can more effectively resist centrifugal force generated in the rotating process and loads transmitted by the blades, the structural deformation risk is effectively reduced, the reliability of a product is improved, and the service life of the product is prolonged.

Description

Technical Field

[0001] This application relates to the field of wind turbine technology, and in particular to a wind turbine, a fan, and a dehumidifier. Background Technology

[0002] In existing technologies, wind turbines, especially centrifugal or cross-flow wind turbines, are core components in various fluid machinery such as fans, air conditioners, dehumidifiers, and air purifiers. Their main function is to transport or pressurize gas through rotating blades. The top and bottom rings of traditional wind turbines are usually designed as flat, annular, plate-like structures, and the tips and bottom ends of the blades are also usually flat, connected to these two flat rings in a near-vertical or end-face-fitting manner.

[0003] However, this traditional structure has some inherent shortcomings: First, the connection area between the blade tip and the flat top ring (usually a line contact or a small area of ​​surface contact) will bear a large centrifugal force and aerodynamic load when the wind turbine rotates at high speed. This load is prone to stress concentration at the connection point, which may lead to a decrease in connection strength, blade loosening or even breakage after long-term operation, affecting the wind turbine's operational stability and service life. Second, the traditional flat circular top ring itself has limited structural rigidity, especially when the diameter is large or the material is thin. The centrifugal force generated by high-speed rotation and the force transmitted by the blade may cause the top ring to deform to a certain extent, thereby affecting the dynamic balance and aerodynamic performance of the entire wind turbine. Utility Model Content

[0004] To address the aforementioned issues, this application provides a wind turbine, fan, and dehumidifier with enhanced structural strength.

[0005] To achieve the above objectives, in a first aspect, embodiments of this application provide a wind turbine, comprising:

[0006] The top ring has an annular inclined surface that extends downward from the inner edge to the outer edge;

[0007] The bottom ring is arranged coaxially opposite to the top ring;

[0008] Multiple fan blades are arranged at circumferential intervals along the top and bottom rings;

[0009] The bottom end of each of the fan blades is connected to the bottom ring, and the top end of each of the fan blades is connected to the top ring through the annular inclined surface.

[0010] Preferably, the top of the fan blade is provided with an inclined portion corresponding to the position of the annular inclined surface, and the fan blade is connected and fixed to the annular inclined surface through the inclined portion.

[0011] Preferably, the inclined portion is located at the outer edge of the tip of the fan blade.

[0012] Preferably, the annular inclined surface is an arc-shaped inclined surface with an outward opening.

[0013] Preferably, the surface of the top ring facing away from the annular inclined surface is an outward-opening arc surface.

[0014] Preferably, the bottom end of the fan blade extends outward relative to the bottom ring to form an extension, and the outer edge of the extension is provided with an upwardly inclined arc-shaped transition portion.

[0015] Preferably, the arc-shaped transition portion and the bottom ring are smoothly connected.

[0016] Preferably, the top ring, the bottom ring, and the plurality of fan blades are an integral injection-molded structure.

[0017] Secondly, embodiments of this application provide a wind turbine, including the wind turbine described in any embodiment of the first aspect.

[0018] Thirdly, embodiments of this application provide a dehumidifier, including the fan described in any embodiment of the second aspect.

[0019] The impeller, fan, and dehumidifier designed in this application feature a top ring with an annular inclined surface extending downwards from the inner edge to the outer edge. This allows the top tip of the blade to connect to the top ring via the annular inclined surface, effectively increasing the effective contact area between the blade and the top ring and enhancing the overall structural strength of the impeller. This enables the impeller to more effectively resist the centrifugal force generated during rotation and the load transmitted by the blade, effectively reducing the risk of structural deformation and improving the reliability and service life of the product. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the wind turbine provided in an embodiment of this application.

[0021] Figure 2 yes Figure 1 Enlarged diagram of point A in the middle.

[0022] Figure 3 This is a schematic diagram of the planar structure of the wind turbine provided in an embodiment of this application.

[0023] Figure 4 yes Figure 3 Sectional view at point AA.

[0024] Among them: top ring 10, annular inclined surface 11, arc surface 12, bottom ring 20, fan blade 30, inclined part 31, and arc-shaped transition part 32. Detailed Implementation

[0025] The preferred embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0026] Firstly, such as Figures 1 to 4 As shown in the figure, this application provides a wind turbine. The wind turbine mainly includes a top ring 10, a bottom ring 20, and multiple wind blades 30.

[0027] Specifically, the top ring 10 has an annular inclined surface 11 extending obliquely downward from the inner edge to the outer edge. In this embodiment, the inner edge of the top ring 10 is positioned higher than its outer edge in the axial direction, which makes the annular inclined surface 11 form the lower surface of the top ring 10 facing the bottom ring 20. The annular inclined surface 11 also serves as the connecting surface between the top ring 10 and the top ends of each blade 30, making the overall shape of the top ring 10 resemble an upwardly narrowing frustum structure, which has higher inherent structural rigidity and deformation resistance. Thus, it can effectively resist the structural deformation risks that may be caused by centrifugal force and load transmitted by the blades 30 when the wind turbine rotates at high speed.

[0028] The bottom ring 20 and the top ring 10 are arranged coaxially opposite each other, and the bottom ring 20 is a circular plate structure. Its material and size can be determined according to the overall design requirements of the wind turbine. Multiple blades 30 are evenly spaced along the circumference of the top ring 10 and the bottom ring 20 to form an airflow passage.

[0029] In this embodiment, the bottom end of each blade 30 is connected to the bottom ring 20, and the top end of each blade 30 is connected to the top ring 10 via an annular inclined surface 11. Thus, the top end of the blade 30 is no longer connected to a flat surface, but to an inclined surface, namely the annular inclined surface 11. This connection method, without affecting the wind turbine's air intake area, increases the effective contact area and contact length between the top end of the blade 30 and the top ring 10 by utilizing the inclination of the annular inclined surface 11. This allows for better decomposition and transmission of forces acting at the connection point, thereby enhancing the overall structural strength and rigidity of the wind turbine. This more effectively resists the centrifugal force generated during rotation and the load transmitted by the blades, helping to maintain the dynamic balance and aerodynamic performance of the entire wind turbine. Based on the above embodiment, the fixed connection between the multiple blades 30 and the top ring 10 and bottom ring 20 can be achieved using various methods well known to those skilled in the art, such as, but not limited to, welding, riveting, adhesive bonding, or by designing a corresponding snap-fit ​​structure to achieve mechanical interlocking.

[0030] In one specific embodiment, the top ring 10, the bottom ring 20, and the multiple fan blades 30 are integrally injection molded structures. This integral molding method allows for a seamless connection between the components, which not only improves the overall structural integrity but also simplifies the production and assembly process and reduces manufacturing costs.

[0031] In some embodiments, such as Figure 2 , Figure 4As shown, the top end of the fan blade 30 is provided with an inclined portion 31 corresponding to the position of the annular inclined surface 11, and the fan blade 30 is connected and fixed to the annular inclined surface 11 through the inclined portion 31. In this embodiment, the inclination angle and / or curved surface shape of the inclined portion 31 is adapted to or substantially consistent with the inclination angle and / or curved surface shape of the annular inclined surface 11 at its connection position, thereby firmly connecting and fixing it to the annular inclined surface 11.

[0032] In one specific implementation, such as Figure 2 , Figure 4 As shown, the inclined part 31 is located at the outer edge of the top of the wind blade 30, that is, at the outermost radial edge of the wind blade 30. This is beneficial for the effective matching and connection between the inclined part 31 and the annular inclined surface 11 of the top ring 10, and can also effectively reduce the occupation of the effective air intake area of ​​the wind turbine or the interference with the incoming airflow.

[0033] In some embodiments, such as Figure 4 As shown, the annular inclined surface 11 is an arc-shaped inclined surface with an opening facing outwards. In this embodiment, viewed from the axial cross-section of the wind turbine, the annular inclined surface 11 is not a straight line but an arc with a certain curvature. The outline of the annular inclined surface 11 is not a straight line but an arc with a predetermined curvature. The opening (or concave surface) of this arc faces outwards from the wind turbine. Figure 2 The inclined portion 31 of the blade 30 shown also has a matching arc-shaped surface, which can further increase the effective contact area between the annular inclined surface 11 and the inclined portion 31, so as to further improve the connection strength and durability.

[0034] In some embodiments, such as Figure 1 , Figure 3 , Figure 4 As shown, the surface of the top ring 10 facing away from the annular inclined surface 11, that is, the upper surface of the top ring 10, is an outward-opening arc surface 12, in order to improve the overall torsional rigidity of the top ring 10.

[0035] In some embodiments, such as Figure 1 , Figure 3 As shown, the bottom end of the blade 30 extends outward from the bottom ring 20 to form an extension, and the outer edge of the extension is provided with an upwardly inclined arc-shaped transition portion 32. The design of this arc-shaped transition portion 32 can effectively avoid the formation of sharp edges at the bottom edge of the impeller, thereby improving safety during operation or assembly. Furthermore, the connection between the arc-shaped transition portion 32 and the bottom ring 20 is smooth.

[0036] Secondly, embodiments of this application provide a fan (not shown), including a fan impeller according to any embodiment of the first aspect. Specifically, the fan also includes a housing and a motor. In a specific configuration, the fan impeller is mounted on the output shaft of the motor via a coupling or directly and housed within the fan's volute or duct. When the motor drives the fan impeller to rotate, the fan impeller can effectively draw in and exhaust air, achieving predetermined functions such as ventilation, air exchange, cooling, or pressurization. Thanks to the fan impeller with the aforementioned improved structure, the fan is expected to exhibit more stable operation, stronger structural durability, and a longer service life.

[0037] Thirdly, embodiments of this application provide a dehumidifier (not shown) including a fan according to any embodiment of the second aspect. Specifically, other conventional components of the dehumidifier, such as the housing, refrigeration system (typically including a compressor, evaporator, condenser, etc.), humid air inlet, dry air outlet, and control system, are well known to those skilled in the art. During the operation of this dehumidifier, the fan drives humid air to flow across the low-temperature evaporator surface, causing water vapor in the air to condense into liquid water and be collected. The dried air is then discharged from the dry air outlet. Due to the inclusion of the fan according to any embodiment of the second aspect, this dehumidifier achieves lower energy consumption and / or a quieter operating experience.

[0038] The impeller, fan, and dehumidifier provided in this application embodiment, by designing the top ring with an annular inclined surface extending downward from the inner edge to the outer edge, allows the top tip of the blade to connect with the top ring through the annular inclined surface. This effectively increases the effective contact area between the blade and the top ring and enhances the overall structural strength of the impeller. This enables the impeller to more effectively resist the centrifugal force generated during rotation and the load transmitted by the blade, effectively reducing the risk of structural deformation and improving the reliability and service life of the product.

[0039] In the description of this application, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0040] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0041] Finally, it should be noted that the above descriptions are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A wind turbine, characterized in that, include: The top ring has an annular inclined surface that extends downward from the inner edge to the outer edge; The bottom ring is arranged coaxially opposite to the top ring; Multiple fan blades are arranged at circumferential intervals along the top and bottom rings; The bottom end of each of the fan blades is connected to the bottom ring, and the top end of each of the fan blades is connected to the top ring through the annular inclined surface.

2. The wind turbine according to claim 1, characterized in that, The top of the fan blade is provided with an inclined portion corresponding to the position of the annular inclined surface, and the fan blade is connected and fixed to the annular inclined surface through the inclined portion.

3. The wind turbine according to claim 2, characterized in that, The inclined portion is located at the outer edge of the tip of the wind turbine blade.

4. The wind turbine according to claim 1, characterized in that, The annular inclined plane is an arc-shaped inclined plane with an opening facing outwards.

5. The wind turbine according to claim 1, characterized in that, The surface of the top ring facing away from the annular inclined surface is an outward-opening arc surface.

6. The wind turbine according to claim 1, characterized in that, The bottom end of the fan blade extends out from the bottom ring to form an extension, and the outer edge of the extension is provided with an upwardly inclined arc-shaped transition section.

7. The wind turbine according to claim 6, characterized in that, The arc-shaped transition section and the bottom ring are smoothly connected.

8. The wind turbine according to any one of claims 1-7, characterized in that, The top ring, bottom ring, and multiple fan blades are an integral injection-molded structure.

9. A fan, characterized in that, Includes the wind turbine as described in any one of claims 1-8.

10. A dehumidifier, characterized in that, Includes the fan as described in claim 9.

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