Stator mounting structure of cross-flow wind wheel
By designing a plastic-encapsulated stator-rotor connection and a vibration damping mechanism, the problems of the stator being easily covered by dust and having high vibration noise were solved, achieving stability of the stator structure and reducing noise, thus improving the performance and service life of the cross-flow wind turbine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-07
AI Technical Summary
The stator structure of existing cross-flow wind turbines is exposed inside the casing and is easily covered by dust, which affects performance. Furthermore, the rigid connection between the stator and the casing leads to vibration transmission and high noise levels.
The stator and rotor are connected by a plastic encapsulation system, combined with a shock absorption mechanism and magnetic field drive. Vibration is absorbed by silicone rubber blocks, deformation is adjusted by guide grooves, magnetic fields are provided by magnets, fixed rings limit the movement, and screws fix the structure, which enhances the connection stability and shock absorption effect.
It effectively protects the stator from dust, reduces noise, improves structural stability and electromagnetic compatibility, enhances the support and overall strength of the stator windings, and reduces assembly difficulty.
Smart Images

Figure CN224093583U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of through-flow fan, especially to a stator mounting structure of through-flow fan wheel. BACKGROUND
[0002] The through-flow fan wheel, also called radial-flow fan wheel or axial-flow fan wheel, is a kind of fan with airflow flowing along the impeller axis. Compared with centrifugal fan, the airflow direction of through-flow fan wheel basically remains unchanged, so it is more suitable for handling large flow and low pressure air flow. Since its structure only has blades, bearings and shaft, the structure is relatively simple, easy to manufacture and maintain. At the same time, due to the design characteristics, the through-flow fan wheel is relatively stable during operation and has low noise. In addition, the through-flow fan wheel can handle large air flow, so it is very suitable for occasions requiring large air flow. Although its structure is relatively simple, the working principle involves the process of converting kinetic energy into mechanical energy.
[0003] The working principle of through-flow fan wheel is based on the principle of through-flow, that is, the airflow flows along the impeller axis. When the air flows through the blades of the through-flow fan wheel, the blades convert the kinetic energy of the air into mechanical energy to drive the fan wheel to rotate. The shape, number and angle of the blades directly affect the output capacity and efficiency of the fan wheel. The higher the air flow rate, the greater the output capacity of the fan wheel. Due to these characteristics, the through-flow fan wheel is widely used in the fields of wind power generation, aerospace and thermal equipment. However, the stator structure of the existing outer rotor through-flow fan is directly exposed in the stator shell, which is easily covered with dust over time, affecting the performance. At the same time, the hard connection between the stator and the shell easily causes vibration transmission, affecting the installation stability of the stator shell in the air conditioner, resulting in large noise. SUMMARY
[0004] In order to make up for the above shortcomings, the utility model provides a stator mounting structure of through-flow fan wheel, which aims to improve the problem that the stator structure of the rotor through-flow fan in the prior art is directly exposed in the stator shell, which is easily covered with dust over time, affecting the performance.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a stator mounting structure of through-flow fan wheel, comprising a shell, the inner wall of the shell is rotationally connected with a rotor, the outer wall of the rotor is fixedly connected with a mounting block two, the right side of the mounting block two is provided with a bottom shell, the outer wall of the bottom shell is fixedly connected with a mounting block one, the inner walls of the mounting block one and the mounting block two are both screw-connected with screws, the inner wall of the rotor is slidingly connected with a plastic-sealed stator, the outer surface of the plastic-sealed stator is fixedly connected with a damping mechanism, and the damping mechanism is used for damping.
[0006] Through the technical scheme, the plastic-sealed stator can drive the rotor to rotate through a magnetic field after being electrified, the mounting block two can be attached to the mounting block one, and then the screw is twisted to fix it, so as to fix the shell and the bottom shell.
[0007] As a further description of the above technical scheme:
[0008] The damping mechanism comprises a mounting ring, an inner wall of the mounting ring is fixedly connected with a plastic-sealed stator, an outer wall of the mounting ring is fixedly connected with a fixing block, an outer wall of the fixing block is fixedly connected with a plurality of silicon rubber blocks, and an outer wall of the silicon rubber block is provided with a guide groove.
[0009] Through the technical scheme, the silicon rubber block is used to absorb the vibration generated by the plastic-sealed stator during operation, so as to reduce the noise generated by the entire mechanism during operation, and the guide groove is used to provide additional deformation space for the deformation of the silicon rubber block.
[0010] As a further description of the above technical scheme:
[0011] The left side of the rotor is provided with a plurality of sliding grooves, and the outer surface of the plastic-sealed stator is fixedly connected with a connecting line near the edge.
[0012] Through the technical scheme, the connecting line is used to facilitate the user to electrify the plastic-sealed stator and connect the control structure.
[0013] As a further description of the above technical scheme:
[0014] The inner wall of the sliding groove is slidably connected with a magnet.
[0015] Through the technical scheme, the magnet is used to generate a magnetic field for the entire structure.
[0016] As a further description of the above technical scheme:
[0017] The outward side of the magnet is fixedly connected with a fixing ring.
[0018] Through the technical scheme, the fixing ring is used to limit the magnet to avoid displacement of the magnet when the structure rotates.
[0019] As a further description of the above technical scheme:
[0020] The rear side of the bottom shell is provided with a reinforcing hole.
[0021] Through the technical scheme, the reinforcing hole is used to screw a screw into it, so as to further reinforce the connection between the bottom shell and the remaining structure.
[0022] As a further description of the above technical scheme:
[0023] The outer wall of the bottom shell is fixedly connected with a connecting block near the edge, and a threaded groove is formed in the inner wall of the connecting block.
[0024] Through the above technical scheme, the threaded groove is used for facilitating the user to install the connecting block at a required position by using a screw.
[0025] As a further description of the above technical scheme:
[0026] The left side of the rotor is fixedly connected with a wind tube, and the left end of the wind tube is rotatably connected with a fixed shaft.
[0027] Through the above technical scheme, the fixed shaft is used for providing a fulcrum for the rotation of the wind tube.
[0028] The utility model has the advantages of the following beneficial effects:
[0029] 1. In the utility model, the plastic package stator is sleeved on the rotor, then the rotor is placed in the shell, the left side of the bottom shell is attached to the right side of the mounting block two, the mounting block one can be aligned with the mounting block two, and then the mounting block one and the mounting block two are fixed by twisting the screw, so that the plastic package stator is protected and dust is prevented from falling after long-term use, the performance is prevented from being affected, and the service life is prolonged.
[0030] 2. In the utility model, the plurality of fixing blocks are fixed around the plastic package stator by the mounting ring, the fixing blocks can fix the silica rubber blocks around the plastic package stator, the guide groove can reduce the friction between the silica rubber blocks and the inner wall of the shell, the plastic package stator is damped, and the noise is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0031] Figure 1 A front side perspective view of the stator mounting structure of the tubular wind wheel is provided for the utility model;
[0032] Figure 2 A partial structure schematic view of the stator mounting structure of the tubular wind wheel is provided for the utility model;
[0033] Figure 3 A plastic package stator partial structure display view of the stator mounting structure of the tubular wind wheel is provided for the utility model;
[0034] Figure 4 A screw partial structure display view of the stator mounting structure of the tubular wind wheel is provided for the utility model;
[0035] Figure 5 An installation ring partial structure display view of the stator mounting structure of the tubular wind wheel is provided for the utility model;
[0036] Figure 6This is a partial exploded view of the rotor structure of the stator mounting structure of the cross-flow wind turbine proposed in this utility model;
[0037] Figure 7 This is a partial exploded view of the magnet structure of the stator mounting structure of a cross-flow wind turbine proposed in this utility model;
[0038] Figure 8 This is a cross-sectional view of the stator mounting structure of a cross-flow wind turbine proposed in this utility model.
[0039] Legend:
[0040] 1. Housing; 2. Shock absorption mechanism; 201. Mounting ring; 202. Fixing block; 203. Silicone rubber block; 204. Guide groove; 3. Mounting block one; 4. Screw; 5. Plastic-encapsulated stator; 6. Rotor; 7. Bottom shell; 8. Mounting block two; 9. Connecting wire; 10. Slide groove; 11. Magnet; 12. Fixing ring; 13. Air duct; 14. Fixing shaft; 15. Threaded groove; 16. Reinforcing hole; 17. Connecting block. Detailed Implementation
[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0042] Please see the appendix Figure 1 - Appendix Figure 3 This utility model provides an embodiment of a stator mounting structure for a cross-flow wind turbine, including a housing 1. A rotor 6 is rotatably connected to the inner wall of the housing 1. The housing 1 is used to protect the internal components. A mounting block 2 8 is fixedly connected to the outer wall of the rotor 6. A bottom shell 7 is provided on the right side of the mounting block 2 8. The bottom shell 7 is used for fixed installation with the housing 1. A mounting block 1 3 is fixedly connected to the outer wall of the bottom shell 7. Screws 4 are threadedly connected to the inner walls of both mounting block 1 3 and mounting block 2 8. Mounting block 1 3 is used for mounting block 2 8. The rotor 6 is fitted together for positioning and installation. The inner wall of the rotor 6 is fitted with a plastic-encapsulated stator 5 through an air gap. The screw 4 is used to fix the mounting block 3 and the mounting block 8. The outer surface of the plastic-encapsulated stator 5 is fixedly connected to the shock absorption mechanism 2, which is used for damping vibration. The plastic-encapsulated stator 5 is used to provide additional support for the stator winding. The air gap between the rotor 6 and the plastic-encapsulated stator 5 is 0.2-2mm. In this embodiment, the stator core inside the plastic-encapsulated stator 5 can be selected as a twelve-slot ten-pole or twelve-slot fourteen-pole structure.
[0043] Specifically, the encapsulated stator 5 provides additional support for the stator windings, enhances the overall structural strength, reduces the damage to the windings caused by vibration and impact, shields some electromagnetic interference, improves the electromagnetic compatibility of the motor, making it more suitable for precision equipment or electromagnetically sensitive scenarios. The stator winding structure is more compact, facilitating installation and integration with other components, reducing assembly difficulty and time. Mounting block 2 8 can be aligned with mounting block 1 3, thereby calibrating the connection between housing 1 and bottom shell 7, and fixing housing 1 and bottom shell 7 with screws 4.
[0044] Please see the appendix Figure 4 - Appendix Figure 6 The shock absorption mechanism 2 includes a mounting ring 201. A plastic-encapsulated stator 5 is fixedly connected to the inner wall of the mounting ring 201, and a fixing block 202 is fixedly connected to the outer wall of the mounting ring 201. The mounting ring 201 is used to fix multiple fixing blocks 202 around the periphery of the plastic-encapsulated stator 5. Multiple silicone rubber blocks 203 are fixedly connected to the outer wall of the fixing block 202. The fixing block 202 is used to fix the silicone rubber blocks 203. The outer wall of the silicone rubber blocks 203 is provided with guide grooves 204. The silicone rubber blocks 203 absorb the vibration generated during motor operation.
[0045] Specifically, the mounting ring 201 can surround and fix multiple fixing blocks 202 around the encapsulated stator 5, thereby surrounding and fixing the silicone rubber block 203 around the encapsulated stator 5. The silicone rubber block 203 surrounds the outer periphery of the encapsulated stator 5, allowing the encapsulated stator 5 to be connected to the housing 1 through the silicone rubber block 203. This greatly reduces the vibration transmission to the housing 1 when the motor is running, thus effectively protecting the housing 1 and the external air conditioning structure. The silicone rubber block 203 has the characteristics of good shock absorption and strong temperature resistance. The guide groove 204 is used to flexibly adjust the local and overall elastic modulus, so that the deformation distribution is more uniform when under force, avoiding local overload, providing additional deformation space for the rubber when under pressure, improving energy dissipation efficiency, and thus improving the shock absorption effect.
[0046] Please see the appendix Figure 2 - Appendix Figure 4 Multiple sliding grooves 10 are provided on the left side of the rotor 6. A connecting wire 9 is fixedly connected to the outer surface of the plastic-encapsulated stator 5 near the edge. The connecting wire 9 is used to connect the plastic-encapsulated stator 5 to the power supply and control structure. A magnet 11 is slidably connected to the inner wall of the sliding groove 10. The sliding groove 10 is used to place and install the magnet 11. A fixing ring 12 is fixedly connected to the outer side of the magnet 11. The fixing ring 12 is used to limit the multiple magnets 11.
[0047] Specifically, magnet 11 can generate a fixed magnetic field. When the encapsulated stator 5 is energized, it generates an alternating magnetic field. The two interact to form a magnetic pull, which drives the rotor 6 to rotate, thereby outputting mechanical energy. The connecting line 9 is used to connect the encapsulated stator 5 to the power supply and to the control structure that controls its start-stop and forward / reverse rotation. The slide groove 10 is used to place magnet 11 inside it, thereby completing the upper operation process. The fixing ring 12 ensures that the multiple magnets 11 will not be displaced during rotation.
[0048] Please see the appendix Figure 6 - Appendix Figure 8 The left side of the rotor 6 is fixedly connected to the air duct 13, and the outer wall of the bottom shell 7 is fixedly connected to the connecting block 17 near the edge. The air duct 13 is used to increase the flow rate between its internal structure and the air by rotating. The inner wall of the connecting block 17 is provided with a threaded groove 15, which is used to fix the connecting block 17 in the required position through the other structure. The left end of the air duct 13 is rotatably connected to the fixing shaft 14, and the rear side of the bottom shell 7 is provided with a reinforcing hole 16. The fixing shaft 14 is used to rotatably fix the air duct 13 in the required position.
[0049] Specifically, the air duct 13 is used to guide the airflow through the cross-flow impeller, ensuring that the airflow flows along the designed path, thereby improving the efficiency and performance of the impeller, while reducing eddies and turbulence in the airflow and reducing energy loss. The threaded groove 15 is used by the user to fix the connecting block 17 in the required position, thereby fixing the entire structure in the required position. The fixed shaft 14 provides a fulcrum when the air duct 13 rotates. The reinforcing hole 16 is used to reinforce the connection between the bottom shell 7 and the shell 1.
[0050] Working principle: By encapsulating the plastic stator 5, its overall volume is reduced, increasing the torque that drives the housing 1 to rotate, improving its rotational efficiency, enhancing the overall structural strength, reducing the damage of vibration and impact to the windings, shielding some electromagnetic interference, improving the electromagnetic compatibility of the motor, making the stator winding structure more compact, facilitating installation and integration with other components, reducing assembly difficulty and time, and protecting the plastic stator 5 through the housing 1 and bottom shell 7. Then, mounting block 2 8 and mounting block 1 3 are aligned, and the screw 4 is rotated to fix the mounting block 2 8 and mounting block 1 3, thereby limiting the housing 1 and bottom shell 7. At the same time, the screw is screwed into the reinforcing hole 16 to further fix the connection between the housing 1 and bottom shell 7.
[0051] Multiple fixing blocks 202 are fixed around the plastic-encapsulated stator 5 by mounting ring 201, so that the fixing blocks 202 can fix the silicone rubber block 203 between the housing 1 and the plastic-encapsulated stator 5, so that the external vibration is transmitted to the plastic-encapsulated stator 5 and can be absorbed and slowed down by the silicone rubber block 203. The guide groove 204 can flexibly adjust the local and overall elastic modulus of the silicone rubber block 203, so that the deformation distribution is more uniform when under force and avoids local overload.
[0052] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model 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 the present utility model should be included within the protection scope of the present utility model.
Claims
1. A stator mounting structure for a cross-flow wind turbine, comprising a housing (1), characterized in that: The inner wall of the housing (1) is rotatably connected to a rotor (6), and the outer wall of the rotor (6) is fixedly connected to a mounting block two (8). A bottom shell (7) is provided on the right side of the mounting block two (8), and the outer wall of the bottom shell (7) is fixedly connected to a mounting block one (3). The inner walls of the mounting block one (3) and the mounting block two (8) are threaded with screws (4). The inner wall of the rotor (6) is slidably connected to a plastic-sealed stator (5), and the outer surface of the plastic-sealed stator (5) is fixedly connected to a shock-absorbing mechanism (2). The shock-absorbing mechanism (2) is used for damping vibration.
2. The stator mounting structure of a cross-flow wind turbine according to claim 1, characterized in that: The shock absorption mechanism (2) includes a mounting ring (201), a plastic-sealed stator (5) is fixedly connected to the inner wall of the mounting ring (201), a fixing block (202) is fixedly connected to the outer wall of the mounting ring (201), a plurality of silicone rubber blocks (203) are fixedly connected to the outer wall of the fixing block (202), and a guide groove (204) is provided on the outer wall of the silicone rubber block (203).
3. The stator mounting structure of a cross-flow wind turbine according to claim 1, characterized in that: The rotor (6) has multiple sliding grooves (10) on its left side, and the plastic-encapsulated stator (5) has connecting lines (9) fixedly connected to its outer surface near the edge.
4. The stator mounting structure of a cross-flow wind turbine according to claim 3, characterized in that: The inner wall of the groove (10) is slidably connected to a magnet (11).
5. The stator mounting structure of a cross-flow wind turbine according to claim 4, characterized in that: A fixing ring (12) is fixedly connected to the outer side of the magnet (11).
6. The stator mounting structure of a cross-flow wind turbine according to claim 1, characterized in that: The bottom shell (7) has a reinforcement hole (16) on its rear side.
7. The stator mounting structure of a cross-flow wind turbine according to claim 1, characterized in that: A connecting block (17) is fixedly connected to the outer wall of the bottom shell (7) near the edge, and a threaded groove (15) is provided on the inner wall of the connecting block (17).
8. The stator mounting structure of a cross-flow wind turbine according to claim 1, characterized in that: The left side of the rotor (6) is fixedly connected to a duct (13), and the left end of the duct (13) is rotatably connected to a fixed shaft (14).