A ceiling machine wind wheel and ceiling machine using the same

Abstract

The present invention relates to the technical field of ceiling fans, and in particular to a ceiling fan wheel and a ceiling fan using the same, wherein the ceiling fan wheel comprises a fan body and a fairing; a hub is arranged at the center of the fan body; the hub is divided into a buckle part, a connection part and a guide part from top to bottom, and a plurality of heat dissipation holes arranged at equal intervals are arranged around the buckle part; the fairing is buckled and installed on the outer wall of the buckle part, and the inner wall of the fairing and the outer wall of the buckle part form a guide space; the bottom end of the fairing is located above the connection between the connection part and the guide part, and there is an air outlet gap between the bottom end of the fairing and the outer wall of the connection part, and the heat dissipation hole and the air outlet gap are connected through the guide space; the outer wall of the fairing and the outer wall of the guide part are located in the same plane. In the design of the fairing, the present invention pays special attention to the connection with the hub to ensure the use of a smooth transition design to reduce the generation of vortices and turbulence, improve the airflow stability, reduce noise, and ensure the efficient and silent operation of the ceiling fan wheel.

Description

Technical Field

[0001] The invention relates to the technical field of ceiling machines, and in particular to a ceiling machine wind wheel and a ceiling machine using the same. Background Art

[0002] The fan wheel of the ceiling fan is a key component to achieve the air supply function, which converts the kinetic energy of the motor into the power of air flow. However, the motor will generate a lot of heat energy when it runs for a long time, which will lead to a decrease in operating efficiency and even cause failure, thermal deformation or aging. To solve this problem, heat dissipation holes need to be opened on the fan wheel hub to enhance the flow of hot air on the surface of the motor, effectively remove the heat and ensure the efficient operation of the motor.

[0003] However, the opening of cooling holes also brings challenges: the noise generated by the high-speed operation of the motor will radiate through the cooling holes, increasing the noise of the whole machine; at the same time, the secondary flow formed by the confluence of the main airflow will interfere with the main airflow of the wind wheel, affecting the overall noise performance of the fan. To solve these noise problems, the design of snapping the fairing onto the wind wheel hub is usually adopted.

[0004] However, when there is a step between the outer wall of the fairing and the outer wall of the hub, such as Figure 7 As shown, when the connection is not smoothly transitioned, the main airflow will generate vortex and turbulence with the hot airflow and secondary flow when flowing through these steps, destroying the stability of the main airflow, resulting in unsmooth flow and generating additional noise, further affecting the overall noise performance of the ceiling machine. Summary of the invention

[0005] One purpose of the present invention is to provide a ceiling fan wind wheel. In the design of the fairing, special attention is paid to the connection with the hub to ensure a smooth transition design to reduce the generation of vortices and turbulence, improve airflow stability, reduce noise, and ensure efficient and silent operation of the ceiling fan wind wheel.

[0006] Another object of the present invention is to provide a ceiling machine, which uses a ceiling machine wind wheel as described above, which not only has excellent performance but also ensures the comfort of users and the long-term stable operation of the equipment.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] A ceiling fan wind wheel, comprising a wind wheel body and a fairing;

[0009] The wind wheel body comprises a hub, a bottom plate and a guide ring, wherein the hub is located at the center of the bottom plate, and the lower edge of the hub is connected to the bottom plate, the guide ring is located above the bottom plate, the guide ring is not connected to the hub, and an air inlet is formed between the guide ring and the hub;

[0010] A plurality of blades are arranged between the guide ring and the bottom plate, and the plurality of blades are arranged at equal intervals around the rotating shaft of the wind wheel body, and air outlets are formed between adjacent blades;

[0011] The hub is divided into a buckling part, a connecting part and a guiding part from top to bottom, and a plurality of heat dissipation holes arranged at equal intervals are arranged around the buckling part;

[0012] The fairing is buckled and installed on the outer wall of the buckling part, and the inner wall of the fairing and the outer wall of the buckling part form a flow guide space;

[0013] The bottom end of the fairing is located above the connection between the connecting portion and the guide portion, an air outlet gap exists between the bottom end of the fairing and the outer wall of the connecting portion, and the heat dissipation hole and the air outlet gap are connected through the guide space;

[0014] The outer wall of the fairing and the outer wall of the guide portion are located in the same plane.

[0015] Preferably, the outer wall of the hub is formed by fitting a cluster of hub outer wall A curves, the cluster of hub outer wall A curves includes a plurality of hub outer wall A curves, and the hub outer wall A curves include a straight line A1, an arc line A2, a straight line A3, an arc line A4, a straight line A5, an arc line A6, a straight line A7 and an arc line A8 connected in sequence;

[0016] The inner wall of the fairing is formed by fitting a fairing inner wall B curve cluster, the fairing inner wall B curve cluster includes a plurality of fairing inner wall B curves, and the fairing inner wall B curve includes a B1 straight line, a B2 arc line and a B3 straight line connected in sequence;

[0017] Among them, the A3 straight line and the B3 straight line are arranged in parallel, the A2 arc is arranged tangent to the A1 straight line and the A3 straight line respectively, the A4 arc is arranged tangent to the A3 straight line and the A5 straight line respectively, the A6 arc is arranged tangent to the A5 straight line and the A7 straight line respectively, the A8 arc is arranged tangent to the A7 straight line, and the B2 arc is arranged tangent to the B1 straight line and the B3 straight line respectively.

[0018] Preferably, the length of the A5 straight line is defined as L1, and the angle between the A5 straight line and the vertical straight line is defined as ∠C;

[0019] The distance between the straight line A1 and the straight line B1 is defined as H1, and the distance between the straight line A3 and the straight line B3 is defined as the guide space distance H2;

[0020] Among them, 1mm≤L1≤10mm, ∠C≤90°, H1=(0~0.8)*L1, H2=(1.0~2.0)*L1.

[0021] Preferably, the angle between the A3 line and the horizontal line is defined as ∠D;

[0022] Among them, 45°≤∠D≤70°.

[0023] Preferably, the diameter of the A2 arc is defined as Φ1, the diameter of the B2 arc is defined as Φ2, the diameter of the A4 arc is defined as Φ3, the diameter of the A6 arc is defined as Φ4, and the diameter of the A8 arc is defined as Φ5;

[0024] Among them, 60%≤Φ1 / Φ2≤80%, Φ1=(4~6)*Φ3=(2~4)*Φ4=(1.5~4)*Φ5.

[0025] Preferably, the vertical distance from the end point of the B3 straight line to the A5 straight line is defined as the air outlet gap distance H3;

[0026] Among them, H3=(0.8~5)*L1.

[0027] Preferably, the inner wall of the wheel hub is formed by fitting a wheel hub inner wall A* curve cluster, and the wheel hub inner wall A* curve cluster includes a plurality of wheel hub inner wall A* curves;

[0028] The wheel hub inner wall curve A* and the wheel hub outer wall curve A located at the same cross section of the wheel hub are arranged in parallel, and the distance between the wheel hub inner wall curve A* and the wheel hub outer wall curve A located at the same cross section of the wheel hub is defined as the wheel hub thickness h1;

[0029] The outer wall of the fairing is formed by fitting a fairing outer wall B* curve cluster, and the fairing outer wall B* curve cluster includes a plurality of fairing outer wall B* curves;

[0030] The fairing outer wall curve B* and the fairing inner wall curve B located at the same cross section of the fairing are arranged in parallel, and the distance between the fairing outer wall curve B* and the fairing inner wall curve B located at the same cross section of the fairing is defined as the fairing thickness h2;

[0031] Among them, h1=(0.6~0.8)*L1, h2=(1.0~2.0)*L1.

[0032] Preferably, the vertical distance between the starting point and the ending point of the fairing outer wall B* curve is defined as the fairing height E;

[0033] The vertical distance between the starting point and the ending point of the wheel hub inner wall A* curve is defined as the wheel hub height F;

[0034] Among them, 55%≤E / F≤75%.

[0035] Preferably, the heat dissipation hole is an arc-shaped hole, and a plurality of the arc-shaped holes are distributed in a ring shape on the buckling portion;

[0036] The outer diameter of the bottom plate is defined as the outer diameter of the wind wheel Ø, the number of the arc holes is defined as Z, the inner diameter of the arc hole is defined as Ø1, the outer diameter of the arc hole is defined as Ø2, and the angles between the left and right endpoints of the arc hole and the center point 0 of the wind wheel body are defined as ∠K;

[0037] Among them, 3≤Z≤11, 0.2≤Ø1 / Ø≤0.4, 0.2≤Ø2 / Ø≤0.4, 15°≤∠K≤25°.

[0038] A ceiling machine uses the ceiling machine wind wheel as described above.

[0039] One of the above technical solutions has the following beneficial effects:

[0040] 1. Improve airflow efficiency: Through the design of the fairing, the vortex and turbulence of the main airflow and hot airflow inside the wind wheel are reduced, making the main airflow smoother and more efficient, thereby improving the overall efficiency of the ceiling fan wind wheel.

[0041] 2. Reduce noise: The outer wall of the fairing and the hub adopts a coplanar design to reduce airflow impact and vibration, effectively reducing the noise level during operation.

[0042] 3. Enhance heat dissipation performance: The interconnected design of heat dissipation holes, guide space and air outlet gap helps to dissipate the heat generated by the rotation of the wind wheel in time, keep the wind wheel running at a suitable working temperature, and avoid performance degradation or damage caused by overheating.

[0043] 4. Improve user experience: By improving airflow efficiency, reducing noise and enhancing heat dissipation performance, it provides users with a more comfortable and quiet environment and improves the overall user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a structural schematic diagram of a ceiling fan wind wheel of the present invention;

[0045] Figure 2 It is an exploded schematic diagram of a ceiling fan wind wheel of the present invention;

[0046] Figure 3 It is a cross-sectional schematic diagram of a ceiling fan wind wheel of the present invention;

[0047] Figure 4 It is a top view schematic diagram of a ceiling fan wind wheel hidden fairing of the present invention;

[0048] Figure 5 It is a schematic diagram of the design of the profile of a fairing and a hub in a ceiling fan wind wheel of the present invention;

[0049] Figure 6 It is a schematic diagram of parameter design of a fairing and a hub in a ceiling fan wind wheel of the present invention;

[0050] Figure 7 It is a schematic diagram of airflow distribution of an existing ceiling fan impeller;

[0051] Figure 8 It is a schematic diagram of airflow distribution of a ceiling fan wind wheel of the present invention;

[0052] In the attached drawings: a wind wheel body 1, a fairing 2, a hub 3, a bottom plate 4, a guide ring 5, an air inlet 6, a fan blade 7, an air outlet 8, a guide space 9, an air outlet gap 20, a heat dissipation hole 30, a buckling part 31, a connecting part 32, and a guiding part 33. DETAILED DESCRIPTION

[0053] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0054] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0055] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0056] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] A ceiling fan wind wheel, comprising a wind wheel body 1 and a fairing 2;

[0058] The wind wheel body 1 includes a hub 3, a bottom plate 4 and a guide ring 5, wherein the hub 3 is located at the center of the bottom plate 4, and the lower edge of the hub 3 is connected to the bottom plate 4, the guide ring 5 is located above the bottom plate 4, the guide ring 5 is not connected to the hub 3, and an air inlet 6 is formed between the guide ring 5 and the hub 3;

[0059] A plurality of blades 7 are arranged between the guide ring 5 and the bottom plate 4. The plurality of blades 7 are arranged at equal intervals around the rotation axis of the wind wheel body 1, and air outlets 8 are formed between adjacent blades 7.

[0060] The hub 3 is divided into a buckling portion 31, a connecting portion 32 and a guiding portion 33 from top to bottom, and the buckling portion 31 is surrounded by a plurality of heat dissipation holes 30 arranged at equal intervals;

[0061] The fairing 2 is buckled and installed on the outer wall of the buckling portion 31, and the inner wall of the fairing 2 and the outer wall of the buckling portion 31 form a flow guide space 9;

[0062] The bottom end of the fairing 2 is located above the connection between the connecting portion 32 and the guiding portion 33, and there is an air outlet gap 20 between the bottom end of the fairing 2 and the outer wall of the connecting portion 32, and the heat dissipation hole 30 and the air outlet gap 20 are connected through the guide space 9;

[0063] The outer wall of the fairing 2 and the outer wall of the guide portion 33 are located in the same plane.

[0064] like Figure 1-6 As shown, the working principle of the ceiling fan impeller is mainly based on its structural design and aerodynamic principles.

[0065] When the wind rotor body 1 starts to rotate driven by the external motor, air is sucked into the space between the bottom plate 4 and the guide ring 5 from the air inlet 6 between the guide ring 5 and the hub 3, and flows along the outer wall of the hub 3. The blades 7 are the key driving elements, and multiple blades 7 are evenly distributed between the bottom plate 4 and the guide ring 5. The centrifugal force generated by their rotation throws the air out from the air outlet 8 between adjacent blades 7, thereby forming a primary airflow. As the wind rotor body 1 rotates steadily, the primary airflow will be re-inhaled from the bottom of the hub 3, thereby forming a secondary flow.

[0066] Since the heat generated by the motor will form a hot air flow when the wind wheel body 1 rotates, in order to ensure the normal working temperature of the motor, a plurality of heat dissipation holes 30 are opened in the buckle part 31 of the hub 3, and then the fairing 2 is buckled on the buckle part 31 of the hub 3 to form a guide space 9 with the outer wall of the buckle part 31, and there is a wind outlet gap 20 between the bottom end of the fairing 2 and the outer wall of the connecting part 32. The heat dissipation holes 30 and the wind outlet gap 20 are connected through the guide space 9, which not only helps to smoothly guide the flow of hot air and secondary flow, but also allows the accelerated hot air and secondary flow to merge into the new main air flow and be discharged smoothly together, reducing eddy currents and turbulence, improving the efficiency of the wind wheel and reducing noise.

[0067] More importantly, if Figure 8 As shown, the outer wall of the fairing 2 and the outer wall of the guide portion 33 are located in the same plane, which can ensure that the main airflow remains stable and flows smoothly when entering and leaving the wind wheel, and will not generate vortices and turbulence with the hot air flow and secondary flow, further reducing energy consumption and noise.

[0068] In summary, the beneficial effects of the present invention are as follows:

[0069] 1. Improve airflow efficiency: Through the design of the fairing 2, the vortex and turbulence of the main airflow and hot airflow inside the wind wheel are reduced, making the main airflow smoother and more efficient, thereby improving the overall efficiency of the ceiling fan wind wheel.

[0070] 2. Reduce noise: The outer walls of the fairing 2 and the hub 3 are designed to be coplanar to reduce airflow impact and vibration, effectively reducing the noise level during operation.

[0071] 3. Enhanced heat dissipation performance: The interconnected design of the heat dissipation holes 30, the guide space 9 and the air outlet gap 20 helps to dissipate the heat generated by the rotation of the wind wheel in time, keeps the wind wheel running at a suitable working temperature, and avoids performance degradation or damage caused by overheating.

[0072] 4. Improve user experience: By improving airflow efficiency, reducing noise and enhancing heat dissipation performance, it provides users with a more comfortable and quiet environment and improves the overall user experience.

[0073] Further explanation, the outer wall of the hub 3 is formed by fitting a hub outer wall A curve cluster, the hub outer wall A curve cluster includes a plurality of hub outer wall A curves, and the hub outer wall A curve includes a straight line A1, an arc line A2, a straight line A3, an arc line A4, a straight line A5, an arc line A6, a straight line A7 and an arc line A8 connected in sequence;

[0074] The inner wall of the fairing 2 is formed by fitting a fairing inner wall B curve cluster, wherein the fairing inner wall B curve cluster includes a plurality of fairing inner wall B curves, and the fairing inner wall B curve includes a B1 straight line, a B2 arc line, and a B3 straight line connected in sequence;

[0075] Among them, the A3 straight line and the B3 straight line are arranged in parallel, the A2 arc is arranged tangent to the A1 straight line and the A3 straight line respectively, the A4 arc is arranged tangent to the A3 straight line and the A5 straight line respectively, the A6 arc is arranged tangent to the A5 straight line and the A7 straight line respectively, the A8 arc is arranged tangent to the A7 straight line, and the B2 arc is arranged tangent to the B1 straight line and the B3 straight line respectively.

[0076] like Figure 5-6 As shown, the core of the design of the ceiling fan wind wheel lies in its unique shape structure of the hub outer wall and the inner wall of the fairing. The outer wall of the hub 3 is not a traditional simple geometric shape, but is fitted by a series of carefully designed hub outer wall A curve clusters. These curve clusters are composed of multiple specific hub outer wall A curves, each of which follows a specific geometric law, specifically including the sequential connection of A1 straight line, A2 arc, A3 straight line, A4 arc, A5 straight line, A6 arc, A7 straight line and A8 arc. This design makes the outer wall shape of the hub 3 more complex and smooth, which helps to optimize the flow path of the airflow.

[0077] Similarly, the inner wall of the fairing 2 is also formed by fitting the inner wall B curve cluster of the fairing, which is formed by sequentially connecting the straight line B1, the arc line B2 and the straight line B3. In particular, the arc line B2 is tangent to the straight line B1 and the straight line B3. This design helps to reduce the turbulence and resistance of the airflow on the inner wall of the fairing and improve the stability and efficiency of the airflow.

[0078] In addition, the parallel setting of the A3 line and the B3 line, as well as the tangent setting of the A2, A4, A6, A8 arcs and the adjacent lines, further ensure the smooth transition and efficient flow of the airflow inside the wind rotor. These design details work together on the airflow channel of the wind rotor, allowing the airflow to enter, pass through and leave the wind rotor more smoothly, thereby improving the efficiency and performance of the wind rotor.

[0079] For further explanation, the length of the A5 straight line is defined as L1, and the angle between the A5 straight line and the vertical straight line is defined as ∠C;

[0080] The distance between the straight line A1 and the straight line B1 is defined as H1, and the distance between the straight line A3 and the straight line B3 is defined as the guide space distance H2;

[0081] Among them, 1mm≤L1≤10mm, ∠C≤90°, H1=(0~0.8)*L1, H2=(1.0~2.0)*L1.

[0082] like Figure 5-6 As shown in the figure, in the design of the ceiling fan rotor, in order to more accurately describe the shape of the hub outer wall and the inner wall of the fairing and their relationship, the following definitions and parameters are introduced:

[0083] The A5 line is a key line in the A curve cluster of the hub outer wall, and its length L1 is defined as a value between 1mm and 10mm. This length range ensures that the A5 line can provide sufficient structural strength and meet the needs of airflow optimization. Furthermore, in order to ensure smooth airflow and structural stability, the angle ∠C between the A5 line and the vertical line is limited to 90° or less.

[0084] The distance H1 between the A1 line and the B1 line is set to be 0 to 0.8 times the length L1 of the A5 line, that is, H1 = (0~0.8)*L1. This design allows for sufficient space for the airflow to enter while maintaining the compactness of the structure.

[0085] The distance H2 between the A3 line and the B3 line is set to 1.0 to 2.0 times the length L1 of the A5 line, that is, H2 = (1.0~2.0) * L1. The design of the guide space distance H2 is crucial to ensure smooth passage of airflow and reduce turbulence.

[0086] For further explanation, the angle between the A3 line and the horizontal line is defined as ∠D;

[0087] Among them, 45°≤∠D≤70°.

[0088] like Figure 5-6 As shown in FIG. 1 , in the design of the ceiling fan impeller, the straight line A3 is a part of the A curve cluster on the outer wall of the hub, and its position and direction are crucial to the guidance and optimization of the hot air flow and secondary flow coming out of the heat dissipation hole 30. The angle ∠D between the straight line A3 and the horizontal straight line is precisely defined as a key parameter, and its value range is limited to between 45° and 70°.

[0089] It is known that the straight line A3 and the straight line B3 are arranged in parallel, and the straight line A3 and the straight line B3 cooperate to form a smooth and continuous airflow channel. Specifically, when ∠D is in the range of 45° to 70°, the airflow channel in this angle range can guide the hot air flow coming out of the heat dissipation hole 30 to flow in a better flow state according to the airflow channel, and neither too much resistance will be generated due to too large an angle, nor will the airflow be separated or turbulent due to too small an angle. This design not only helps to reduce energy loss and improve the stability and efficiency of the airflow, but also further improves the performance and efficiency of the wind wheel.

[0090] Further explanation, the diameter of the A2 arc is defined as Φ1, the diameter of the B2 arc is defined as Φ2, the diameter of the A4 arc is defined as Φ3, the diameter of the A6 arc is defined as Φ4, and the diameter of the A8 arc is defined as Φ5;

[0091] Among them, 60%≤Φ1 / Φ2≤80%, Φ1=4~6*Φ3=2~4*Φ4=1.5~4*Φ5.

[0092] like Figure 5-6 As shown, when the wind rotor body 1 rotates, on the one hand, air is sucked in to form the main airflow flowing along the outer wall of the hub, and on the other hand, the air flows through the complex airflow channel formed by the inner wall of the hot air flow fairing from the heat dissipation hole 30. The diameter design of these arcs is intended to ensure that the main airflow and hot airflow can pass through the wind rotor smoothly and efficiently, while reducing energy loss and noise generation.

[0093] Further explanation, the vertical distance from the end point of the B3 line to the A5 line is defined as the air outlet gap distance H3;

[0094] Among them, H3=(0.8~5)*L1.

[0095] like Figure 5-6 As shown in the figure, in the design of the ceiling fan rotor, in addition to the various parameters mentioned above, the air outlet gap distance H3 is also a crucial design factor. H3 is defined as the vertical distance from the end point of the B3 straight line in the B curve cluster on the inner wall of the fairing to the A5 straight line in the A curve cluster on the outer wall of the hub. This distance not only affects the outlet speed and direction of the hot air flow, but is also directly related to the overall performance and efficiency of the wind rotor.

[0096] When the wind wheel rotates, the hot air flow from the heat dissipation hole 30 flows through the complex air flow channel formed by the inner wall of the fairing and is finally discharged from the air outlet 8. The air outlet gap distance H3 plays a key role. By accurately controlling the size of H3, the outlet speed and direction of the air flow can be optimized, thereby improving the performance and efficiency of the wind wheel.

[0097] Specifically, the size of H3 is set to be 0.8 to 5 times the straight length L1 of A5, that is, H3 = (0.8~5) * L1. This design range ensures that the air outlet gap 20 is neither too large to reduce the air flow speed and increase energy loss, nor too small to restrict the outlet direction of the air flow and cause unnecessary turbulence and resistance.

[0098] By adjusting the size of H3, precise control of the airflow outlet velocity and direction can be achieved, thereby optimizing the performance of the impeller. A larger H3 value is suitable for applications that require higher outlet velocities and a wider airflow coverage, while a smaller H3 value is suitable for applications that require more precise airflow control and lower noise.

[0099] To further illustrate, the inner wall of the wheel hub 3 is formed by fitting a wheel hub inner wall A* curve cluster, and the wheel hub inner wall A* curve cluster includes a plurality of wheel hub inner wall A* curves;

[0100] The wheel hub inner wall curve A* and the wheel hub outer wall curve A located at the same cross section of the wheel hub 3 are arranged in parallel, and the distance between the wheel hub inner wall curve A* and the wheel hub outer wall curve A located at the same cross section of the wheel hub 3 is defined as the wheel hub thickness h1;

[0101] The outer wall of the fairing 2 is formed by fitting the fairing outer wall B* curve cluster, and the fairing outer wall B* curve cluster includes a plurality of fairing outer wall B* curves;

[0102] The fairing outer wall curve B* and the fairing inner wall curve B located at the same cross section of the fairing 2 are arranged in parallel, and the distance between the fairing outer wall curve B* and the fairing inner wall curve B located at the same cross section of the fairing 2 is defined as the fairing thickness h2;

[0103] Among them, h1=(0.6~0.8)*L1, h2=(1.0~2.0)*L1.

[0104] like Figure 5-6 As shown in FIG. 1 , the design of the hub thickness h1 and the fairing thickness h2 has an important influence on the performance of the wind turbine. The size of h1 determines the strength and rigidity of the hub 3, and also affects the resistance of the main airflow when passing through the hub 3. The size of h2 determines the strength and stability of the fairing 2, and also affects the flow state of the hot airflow inside the fairing 2.

[0105] Specifically, h1 is set to 0.6 to 0.8 times the length L1 of the straight line A5, that is, h1 = (0.6~0.8)*L1. This design range ensures that the hub 3 has sufficient strength and rigidity, while reducing the resistance of the main airflow passing through, and improving the stability and efficiency of the main airflow.

[0106] Similarly, h2 is set to 1.0 to 2.0 times the straight length L1 of A5, that is, h2 = (1.0 ~ 2.0) * L1. This design range ensures that the fairing 2 has sufficient strength and stability, while optimizing the flow state of the hot air flow inside the fairing 2, reducing energy loss and noise generation.

[0107] Further explanation, the vertical distance between the starting point and the ending point of the fairing outer wall B* curve is defined as the fairing height E;

[0108] The vertical distance between the starting point and the ending point of the wheel hub inner wall A* curve is defined as the wheel hub 3 height F;

[0109] Among them, 55%≤E / F≤75%.

[0110] Specifically, Figure 5-6As shown, by optimizing the ratio X between the height E of the fairing and the height F of the hub 3, the main airflow and the hot airflow can be guided more effectively, and the vortex and the resistance can be reduced, thereby improving the stability and efficiency of the main airflow and the hot airflow.

[0111] To further illustrate, the heat dissipation hole 30 is an arc-shaped hole, and a plurality of the arc-shaped holes are distributed in a ring shape on the buckling portion 31;

[0112] The outer diameter of the bottom plate 4 is defined as the outer diameter of the wind wheel Ø, the number of the arc holes is defined as Z, the inner diameter of the arc hole is defined as Ø1, the outer diameter of the arc hole is defined as Ø2, and the angles between the left and right endpoints of the arc hole and the center point 0 of the wind wheel body 1 are defined as ∠K;

[0113] Among them, 3≤Z≤11, 0.2≤Ø1 / Ø≤0.4, 0.2≤Ø2 / Ø≤0.4, 15°≤∠K≤25°.

[0114] Specifically, Figure 4 As shown, the heat dissipation hole 30 is designed as an arc hole, which is not only beautiful, but also helps to optimize the flow of airflow and improve the heat dissipation efficiency. Multiple arc holes are distributed in a circular shape at equal intervals on the buckle part 31, ensuring uniform heat dissipation. Further, by optimizing the number, size and distribution angle of the heat dissipation holes 30, the heat dissipation efficiency of the ceiling fan wheel is improved, ensuring the stable operation of the ceiling fan wheel in a high temperature environment.

[0115] A ceiling machine uses the ceiling machine wind wheel as described above.

[0116] Since the above ceiling fan impeller has excellent performance in structure, airflow optimization, heat dissipation efficiency and durability, the ceiling fan adopts the above innovative design of ceiling fan impeller, which not only has excellent performance, but also ensures the comfort of users and the long-term stable operation of the equipment.

[0117] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific embodiments of the present invention without creative work, and these equivalent variations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A ceiling fan wheel, characterized in that: It comprises a wind wheel body (1) and a fairing (2); The wind wheel body (1) comprises a wheel hub (3), a bottom plate (4) and a guide ring (5), wherein the wheel hub (3) is located at the center of the bottom plate (4), and the lower edge of the wheel hub (3) is connected to the bottom plate (4), the guide ring (5) is located above the bottom plate (4), the guide ring (5) is not connected to the wheel hub (3), and an air inlet (6) is formed between the guide ring (5) and the wheel hub (3); A plurality of fan blades (7) are arranged between the guide ring (5) and the bottom plate (4); the plurality of fan blades (7) are arranged at equal intervals around the rotation axis of the wind wheel body (1), and air outlets (8) are formed between adjacent fan blades (7); The wheel hub (3) is divided into a buckling portion (31), a connecting portion (32) and a guiding portion (33) from top to bottom, and a plurality of heat dissipation holes (30) arranged at equal intervals are formed around the buckling portion (31); The fairing (2) is buckled and mounted on the outer wall of the buckling portion (31), and the inner wall of the fairing (2) and the outer wall of the buckling portion (31) form a flow guide space (9); The bottom end of the fairing (2) is located above the connection point between the connecting portion (32) and the guiding portion (33), an air outlet gap (20) exists between the bottom end of the fairing (2) and the outer wall of the connecting portion (32), and the heat dissipation hole (30) and the air outlet gap (20) are connected via the guide space (9); The outer wall of the fairing (2) and the outer wall of the guide portion (33) are located in the same plane; The outer wall of the wheel hub (3) is formed by fitting a wheel hub outer wall A curve cluster, the wheel hub outer wall A curve cluster includes a plurality of wheel hub outer wall A curves, and the wheel hub outer wall A curve includes a straight line A1, an arc line A2, a straight line A3, an arc line A4, a straight line A5, an arc line A6, a straight line A7 and an arc line A8 connected in sequence; The inner wall of the fairing (2) is formed by fitting a fairing inner wall B curve cluster, the fairing inner wall B curve cluster includes a plurality of fairing inner wall B curves, and the fairing inner wall B curve includes a B1 straight line, a B2 arc line, and a B3 straight line connected in sequence; The A3 straight line and the B3 straight line are arranged in parallel, the A2 arc is arranged tangent to the A1 straight line and the A3 straight line respectively, the A4 arc is arranged tangent to the A3 straight line and the A5 straight line respectively, the A6 arc is arranged tangent to the A5 straight line and the A7 straight line respectively, the A8 arc is arranged tangent to the A7 straight line, and the B2 arc is arranged tangent to the B1 straight line and the B3 straight line respectively; The inner wall of the wheel hub (3) is formed by fitting a wheel hub inner wall A* curve cluster, wherein the wheel hub inner wall A* curve cluster includes a plurality of wheel hub inner wall A* curves; The wheel hub inner wall curve A* and the wheel hub outer wall curve A located at the same cross section of the wheel hub (3) are arranged in parallel, and the distance between the wheel hub inner wall curve A* and the wheel hub outer wall curve A located at the same cross section of the wheel hub (3) is defined as the wheel hub thickness h1; The outer wall of the fairing (2) is formed by fitting a fairing outer wall B* curve cluster, wherein the fairing outer wall B* curve cluster includes a plurality of fairing outer wall B* curves; The fairing outer wall curve B* and the fairing inner wall curve B located at the same cross section of the fairing (2) are arranged in parallel, and the distance between the fairing outer wall curve B* and the fairing inner wall curve B located at the same cross section of the fairing (2) is defined as the fairing thickness h2; Among them, h1=(0.6~0.8)*L1, h2=(1.0~2.0)*L1.

2. The ceiling fan wheel according to claim 1, characterized in that: The length of the A5 straight line is defined as L1, and the angle between the A5 straight line and the vertical straight line is defined as ∠C; The distance between the straight line A1 and the straight line B1 is defined as H1, and the distance between the straight line A3 and the straight line B3 is defined as the guide space distance H2; Among them, 1mm≤L1≤10mm, ∠C≤90°, H1=(0~0.8)*L1, H2=(1.0~2.0)*L1.

3. The ceiling fan wheel according to claim 1, characterized in that: The angle between the A3 line and the horizontal line is defined as ∠D; Among them, 45°≤∠D≤70°.

4. The ceiling fan wheel according to claim 1, characterized in that: The diameter of the A2 arc is defined as Φ1, the diameter of the B2 arc is defined as Φ2, the diameter of the A4 arc is defined as Φ3, the diameter of the A6 arc is defined as Φ4, and the diameter of the A8 arc is defined as Φ5; Among them, 60%≤Φ1 / Φ2≤80%, Φ1=(4~6)*Φ3=(2~4)*Φ4=(1.5~4)*Φ5.

5. The ceiling fan wheel according to claim 1, characterized in that: Define the vertical distance from the end point of the B3 line to the A5 line as the air outlet gap distance H3; Among them, H3=(0.8~5)*L1.

6. The ceiling fan wheel according to claim 5, characterized in that: The vertical distance between the starting point and the ending point of the fairing outer wall B* curve is defined as the fairing height E; The vertical distance between the starting point and the ending point of the wheel hub inner wall A* curve is defined as the wheel hub height F; Among them, 55%≤E / F≤75%.

7. The ceiling fan wheel according to claim 6, characterized in that: The heat dissipation hole (30) is an arc-shaped hole, and a plurality of the arc-shaped holes are distributed in an annular shape on the buckling portion (31); The outer diameter of the bottom plate (4) is defined as the outer diameter of the wind wheel Ø, the number of the arc-shaped holes is defined as Z, the inner diameter of the arc-shaped hole is defined as Ø1, the outer diameter of the arc-shaped hole is defined as Ø2, and the angles between the left and right endpoints of the arc-shaped hole and the center point 0 of the wind wheel body (1) are defined as ∠K; Among them, 3≤Z≤11, 0.2≤Ø1 / Ø≤0.4, 0.2≤Ø2 / Ø≤0.4, 15°≤∠K≤25°.

8. A ceiling machine, characterized in that: A ceiling fan wind wheel as described in any one of claims 1 to 7 is used.

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