A rotor magnetic ring mounting structure of a cross-flow wind wheel motor

Abstract

The utility model relates to cross flow fan wheel technical field discloses a rotor magnetic ring mounting structure of cross flow fan wheel motor, including cross flow fan wheel no.

Description

Technical Field

[0001] This utility model relates to the field of cross-flow wind turbine technology, and in particular to a rotor magnetic ring mounting structure for a cross-flow wind turbine motor. Background Technology

[0002] In modern ventilation and air conditioning systems, cross-flow fan motors can generate uniform and stable airflow and are widely used in various household appliances and industrial ventilation devices. Therefore, a rotor magnetic ring mounting structure for cross-flow fan motors is required.

[0003] A search revealed Chinese patent publication number CN217741418U, which discloses a cross-flow fan assembly. The external rotor motor includes a stator assembly and a rotor. The cross-flow fan wheel includes a front end plate, a rear end plate, and several fan blades disposed between the front end plate and the rear end plate. A first rotating shaft extends from the middle of the end face of the front end plate. The front end plate also protrudes into a sleeve portion located around the first rotating shaft. The rotor is a magnetic ring, which is plastic-sealed with the sleeve portion. A cavity is formed between the sleeve portion and the first rotating shaft. The stator assembly is embedded within the cavity, and the stator assembly contains a shaft connected to the first rotating shaft. The front end plate extends an annular baffle plate from its end face edge. The annular baffle plate is located outside the sleeve section. This structure integrates the magnetic ring onto the impeller, saving manufacturing materials for the outer rotor housing, reducing manufacturing costs, and reducing the radial space occupied by the outer rotor housing, thereby reducing the radial space of the cross-flow fan assembly, effectively saving space. The annular baffle plate also enhances the waterproof effect. The structure is reasonably arranged. However, the rotor installation is done in stages, making the installation process cumbersome and complex. After installation, gaps will exist. When the cross-flow fan is running, insufficient impeller strength will cause components to loosen. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a rotor magnetic ring mounting structure for a cross-flow wind turbine motor. It aims to improve the existing technology where rotor installation is done in steps, making the installation process cumbersome and complicated. After installation, gaps will remain, and when the cross-flow wind turbine is running, the wind turbine's strength will be insufficient, leading to the problem of loosening of components.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a rotor magnetic ring mounting structure for a cross-flow fan motor, comprising a cross-flow fan, a rotating shaft fixedly connected to the middle of the right end of the cross-flow fan, a connecting groove 1 formed around the outer wall of the rotating shaft, a rotor disk fixedly connected to the inner wall of the connecting groove 1, connecting blocks fixedly connected around the left side of the outer wall of the rotor disk, the inner walls of multiple connecting grooves 1 fixedly connected to the outer walls of the connecting blocks, elastic buffer pads provided on the outer walls of multiple connecting blocks, an injection-molded sealed stator fixedly connected to the inner wall of the rotor disk, a housing fixedly connected to the outer wall of the injection-molded sealed stator, and a magnetic attraction mechanism provided on the right side of the outer wall of the rotor disk.

[0006] The above technical solution, by using a one-piece injection molding process to connect the rotor magnetic ring, shaft, and one section of the cross-flow fan, significantly improves production efficiency, reduces subsequent manual assembly steps, and effectively lowers the manufacturing cost of the integrated cross-flow fan. Simultaneously, this connection method enhances the stability of the connection between the rotor magnetic ring, shaft, and cross-flow fan, significantly reducing vibration and noise caused by insufficient connection rigidity during fan operation. Furthermore, the one-piece injection molding improves the concentricity of the shaft and stator bearing connection, further reducing noise during fan operation. This approach significantly improves product performance while increasing production efficiency and controlling costs.

[0007] As a further description of the above technical solution:

[0008] The magnetic attraction mechanism includes multiple fixing blocks 1. The left side of the outer wall of each fixing block 1 is fixedly connected to the right side of the corresponding rotor disk. The right end of the inner wall of each fixing block 1 is provided with mounting holes 2. Magnetic plates are fixedly connected to the inner walls of each mounting holes 2. Fixing blocks 2 are fixedly connected to the left side of the inner wall of the injection-molded sealed stator. Magnetic heads are fixedly connected to the left ends of each fixing block 2. The outer walls of the magnetic heads engage with the outer walls of the magnetic plates.

[0009] The above technical solution utilizes a magnetic attraction mechanism consisting of multiple fixing blocks (I) fixed to the right side of the rotor disk and magnetic plates within their mounting holes (II), as well as a fixing block (II) fixed to the left side of the injection-molded sealed stator inner wall and engaging with the magnetic plates, and a magnetic head. During installation, the magnetic force between the magnetic plates and the magnetic head assists in connecting the components, making the installation operation simpler, significantly shortening the installation time, improving installation efficiency, and ensuring the accuracy of the installation position. This lays the foundation for the stable operation of the equipment and guarantees the overall installation effect.

[0010] As a further description of the above technical solution:

[0011] Two screws are fixedly connected to the front side of the outer wall of the housing, and two connecting holes are opened on the front side of the outer wall of the injection-molded sealing stator. The outer walls of the two screws engage with the inner walls of the connecting holes.

[0012] The above technical solution provides a simple and reliable fixing method by engaging screws with connecting holes, which can effectively and securely install the housing onto the injection-molded sealing stator, ensuring the integrity and stability of the entire structure. At the same time, this connection method is easy to operate and facilitates installation and disassembly during production and maintenance.

[0013] As a further description of the above technical solution:

[0014] The rotor disk has mounting holes 1 around its right end, and the inner walls of the mounting holes 1 are fixedly connected to the left side of the outer walls of the fixing blocks 1 respectively.

[0015] The above technical solution provides a precise connection and positioning between the rotor disk and the fixed block, ensuring that the fixed block is securely installed on the rotor disk. This guarantees the accuracy of the position of each component of the magnetic attraction mechanism, and also facilitates operation during installation, thereby improving assembly efficiency.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the rotor disk is provided with connecting grooves II around its perimeter, and the inner walls of the multiple connecting grooves II engage with the injection-molded sealing stator.

[0018] The above technical solution provides a stable mechanical connection between the rotor disk and the injection-molded sealed stator, effectively enhancing the stability of the structure, ensuring that all components work together during motor operation, and reducing the risk of component displacement or loosening due to loose connections.

[0019] As a further description of the above technical solution:

[0020] Each of the connecting blocks has an installation groove on its outer wall, and the inner wall of each of the installation grooves is fixedly connected to the right side of the outer wall of each of the elastic buffer pads.

[0021] The above technical solution effectively buffers the vibration generated by the operation of the cross-flow fan, reduces the rigid impact between the connecting block and other components caused by vibration, reduces wear, and prevents the connection from loosening, thereby improving the stability and reliability of the connection.

[0022] As a further description of the above technical solution:

[0023] A connecting wire is fixedly connected to the rear side of the outer wall of the injection-molded sealing stator, and a connector is fixedly connected to the right end of the connecting wire.

[0024] The above technical solution provides the necessary electrical connection channels for the motor through the setting of connecting wires and connectors, ensuring that the current can be smoothly transmitted to various components of the motor, ensuring the normal operation of the motor and realizing its functionality.

[0025] As a further description of the above technical solution:

[0026] The inner wall of the injection-molded sealing stator has mounting grooves 2 on all four sides on the left side, and the inner walls of the multiple mounting grooves 2 are respectively fixedly connected to the multiple fixing blocks 2.

[0027] The above technical solution establishes a stable connection between the injection-molded sealing stator and the fixed block 2 through the fixed connection between the mounting slot 2 and the fixed block 2, enabling the fixed block 2 to be accurately positioned and firmly installed on the injection-molded sealing stator, thereby enhancing the stability of the overall structure.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, power is transmitted through a rotating shaft to ensure synchronous operation of all components, thereby enhancing the overall operational stability. The connecting block is embedded in the connecting groove, which strengthens the connection stability and reduces the risk of component displacement. The elastic buffer pad can effectively absorb the vibration generated by the high-speed rotation of the wind turbine, reduce the rigid impact between components, and prevent the connection from loosening.

[0030] 2. In this utility model, the fixing block two and the magnetic suction head fixed to the inner wall of the injection-molded sealed stator, and the fixing block one and the magnetic suction plate fixed to the right side of the rotor disk attract each other with magnetic force, which provides auxiliary positioning for installation, greatly facilitating the installation operation, shortening the installation time, and improving the installation efficiency. After installation, the magnetic suction head and the magnetic suction plate are tightly engaged, and after fixing and welding, the internal structure of the motor is ensured to be stable. Attached Figure Description

[0031] Figure 1 This is a perspective view of the rotor magnetic ring mounting structure of a cross-flow wind turbine motor proposed in this utility model;

[0032] Figure 2 This is a front view of the rotor magnetic ring mounting structure of a cross-flow wind turbine motor proposed in this utility model;

[0033] Figure 3 This is an exploded view of the magnetic attraction mechanism of the rotor magnetic ring mounting structure of a cross-flow wind turbine motor proposed in this utility model.

[0034] Figure 4 This is a side view of a rotor magnetic ring mounting structure for a cross-flow wind turbine motor proposed in this utility model;

[0035] Figure 5This is a partial structural diagram illustrating the rotor magnetic ring mounting structure of a cross-flow wind turbine motor proposed in this utility model.

[0036] Legend:

[0037] 1. Crossflow fan wheel one; 2. Magnetic suction mechanism; 201. Fixing block one; 202. Mounting hole two; 203. Magnetic suction plate; 204. Fixing block two; 205. Magnetic suction head; 3. Rotating shaft; 4. Connecting groove one; 5. Rotor disk; 6. Connecting block; 7. Elastic buffer pad; 8. Injection molded sealed stator; 9. Housing; 10. Screw; 11. Connecting hole; 12. Mounting hole one; 13. Connecting groove two; 14. Mounting groove one; 15. Connecting wire; 16. Connector; 17. Mounting groove two. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0039] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a rotor magnetic ring mounting structure for a cross-flow fan motor, comprising a cross-flow fan 1, a rotating shaft 3 fixedly connected to the middle of the right end of the cross-flow fan 1, connecting grooves 4 being provided around the outer wall of the rotating shaft 3, a rotor disk 5 being fixedly connected to the inner wall of the connecting grooves 4, connecting blocks 6 being fixedly connected around the left side of the outer wall of the rotor disk 5, the inner walls of multiple connecting grooves 4 being fixedly connected to the outer walls of the connecting blocks 6, and elastic buffer pads 7 being provided on the outer walls of multiple connecting blocks 6, an injection-molded sealed stator 8 being connected to the inner wall of the rotor disk 5 through a magnetically levitated air gap, a housing 9 being fixedly connected to the outer wall of the injection-molded sealed stator 8, and a magnetic attraction mechanism 2 being provided on the right side of the outer wall of the rotor disk 5; wherein, the air gap between the rotor disk 5 and the injection-molded sealed stator 8 is 0.2-2mm, and the stator core inside the injection-molded sealed stator 8 can be selected as a twelve-slot ten-pole or twelve-slot fourteen-pole structure.

[0040] Specifically, the cross-flow impeller 1, as the core component, is responsible for generating airflow. A rotating shaft 3 is fixedly connected to its right center, transmitting motor power to the impeller 1 and driving its rotation. Connecting slots 4 around the outer wall of the rotating shaft 3 are used to connect with the rotor disk 5. The rotor disk 5 is fixed to the rotating shaft 3 via connecting slots 4, ensuring synchronous rotation. Connecting blocks 6 on the left side of the rotor disk 5 are inserted into and fixed within connecting slots 4, achieving a stable connection between the rotor disk 5 and the rotating shaft 3. Elastic buffer pads 7 on the outer wall of connecting blocks 6 effectively buffer vibrations during operation, reducing rigid impacts between components, lowering noise, and improving stability. The injection-molded sealing stator 8 fixed to the inner wall of the rotor disk 5 serves two purposes: sealing to protect the internal structure and fixing it to the outer casing 9, providing protection for the entire structure and supporting internal components to ensure stable operation. The outer casing 9 provides comprehensive protection for the internal precision components, preventing external interference and maintaining a normal operating environment for the motor.

[0041] Reference Figure 3 and Figure 5 The magnetic attraction mechanism 2 includes multiple fixing blocks 201. The left side of the outer wall of the multiple fixing blocks 201 is fixedly connected to the right side of the corresponding rotor disk 5. The right end of the inner wall of the multiple fixing blocks 201 is provided with mounting holes 202. The inner wall of the multiple mounting holes 202 is fixedly connected with magnetic plates 203. The left side of the inner wall of the injection-molded sealed stator 8 is fixedly connected with fixing blocks 204. The left end of the multiple fixing blocks 204 is fixedly connected with magnetic heads 205. The outer wall of the multiple magnetic heads 205 engages with the outer wall of the multiple magnetic plates 203.

[0042] Specifically, multiple fixing blocks 201 are fixedly connected to the right side of the rotor disk 5, firmly connecting the magnetic attraction mechanism 2 to the rotor disk 5. This ensures that the magnetic attraction mechanism 2 can operate synchronously with the rotor disk 5 without displacement during motor operation. The mounting hole 202 on the right side of the inner wall of fixing block 201 is used to install the magnetic absorbing plate 203. The magnetic absorbing plate 203 is fixed in the mounting hole 202, and the magnetic force it generates is the core element for the magnetic attraction mechanism 2 to achieve its function. The fixing block 204 fixed to the left side of the inner wall of the injection-molded sealed stator 8 provides support and positioning for the magnetic head 205. The fixing block 204 places the magnetic head 205 in the corresponding position so that it can cooperate with the magnetic absorbing plate 203. The magnetic head 205 and the magnetic absorbing plate 203 engage with each other, and the magnetic attraction is used to achieve a fast and accurate connection.

[0043] Reference Figure 1 , Figure 2 and Figure 3Two screws 10 are fixedly connected to the front side of the outer wall of the outer shell 9. Two connecting holes 11 are opened on the front side of the outer wall of the injection-molded sealed stator 8. The outer walls of the two screws 10 are engaged with the inner walls of the connecting holes 11. Mounting holes 12 are opened around the right end of the rotor disk 5. The inner walls of the multiple mounting holes 12 are fixedly connected to the left side of the outer walls of multiple fixing blocks 201 respectively. Connecting grooves 13 are opened around the outer wall of the rotor disk 5. The inner walls of the multiple connecting grooves 13 are engaged with the injection-molded sealed stator 8.

[0044] Specifically, the tight fit between screw 10 and connecting hole 11 securely fixes the outer casing 9 to the injection-molded sealed stator 8, ensuring the integrity of the overall structure, effectively preventing the intrusion of foreign objects, protecting internal precision components, and ensuring stable operation of the motor under various working conditions. Mounting hole 12 provides precise positioning for fixing block 201, enabling it to be securely installed on rotor disk 5, thereby ensuring a tight connection between magnetic attraction mechanism 2 and rotor disk 5. The engagement of connecting groove 13 and injection-molded sealed stator 8 enhances the connection stability between rotor disk 5 and injection-molded sealed stator 8, ensuring the relative positional accuracy of each component during operation, reducing vibration and noise caused by loose connections, further improving the smoothness and reliability of motor operation, and providing a solid guarantee for the efficient operation of the cross-flow fan wheel motor 1.

[0045] Reference Figure 2 , Figure 3 and Figure 5 The outer walls of multiple connecting blocks 6 are each provided with mounting grooves 14, and the inner walls of the multiple mounting grooves 14 are respectively fixedly connected to the right side of the outer walls of multiple elastic buffer pads 7; a connecting line 15 is fixedly connected to the rear side of the outer wall of the injection-molded sealing stator 8, and a connector 16 is fixedly connected to the right end of the connecting line 15; the inner walls of the left side of the injection-molded sealing stator 8 are each provided with mounting grooves 27, and the inner walls of the multiple mounting grooves 27 are respectively fixedly connected to multiple fixing blocks 204.

[0046] Specifically, mounting slot 14 provides a precise mounting position for the elastic buffer pad 7, allowing it to be firmly attached to the connecting block 6. The elastic buffer pad 7 effectively absorbs and buffers the vibration generated by the operation of the cross-flow fan, reduces rigid impact between the connecting block 6 and other components, reduces wear, thereby improving connection stability and extending equipment life. Connecting wire 15 and connector 16 together constitute the electrical connection channel of the motor. Connecting wire 15 is responsible for transmitting current from the external power supply to the injection-molded sealed stator 8 and related components, ensuring the normal operation of the motor. Mounting slot 17 provides a reliable mounting position for fixing block 204, allowing it to be firmly installed on the inner wall of the injection-molded sealed stator 8.

[0047] Working principle: When the motor starts, the power is first transmitted to the rotating shaft 3. As a key power transmission component, the rotating shaft 3 is fixedly connected to the cross-flow impeller 1 at its right middle end, which drives the cross-flow impeller 1 to start rotating. The connecting grooves 4 opened around the outer wall of the rotating shaft 3 are tightly connected to the rotor disk 5, ensuring that the rotor disk 5 rotates synchronously with the rotating shaft 3. The connecting blocks 6 on the left side of the outer wall of the rotor disk 5 are firmly embedded in the connecting grooves 4, which enhances the connection stability between the cross-flow impeller 1 and the rotor disk 5. The elastic buffer pads 7 on the outer wall of the connecting blocks 6 can effectively absorb the vibration generated by the high-speed rotation of the impeller during the operation of the cross-flow impeller 1, reduce the rigid impact between components, and prevent the connection from loosening due to vibration.

[0048] Furthermore, during installation, the magnetic suction head 205 connected to the left end of the fixing block 204, which is fixed to the left side of the inner wall of the injection-molded sealed stator 8, will approach the magnetic suction plate 203, which is fixed to the right side of the fixing block 201, which is fixed to the inner wall of the fixing block 201. Since the magnetic suction plate 203 and the magnetic suction head 205 are magnetic, they will attract each other due to magnetic force, which provides convenience for auxiliary positioning and quick connection during installation. When the magnetic suction head 205 and the magnetic suction plate 203 are tightly engaged, they are then fixed and welded, thereby ensuring the stability of the internal structure of the motor during operation and avoiding component displacement or vibration caused by loose connection.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is 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 rotor magnetic ring mounting structure for a cross-flow wind turbine motor, comprising a cross-flow wind turbine (1), characterized in that: A rotating shaft (3) is fixedly connected to the middle of the right end of the cross-flow fan (1). A connecting groove (4) is provided around the outer wall of the rotating shaft (3). A rotor disk (5) is fixedly connected to the inner wall of the connecting groove (4). A connecting block (6) is fixedly connected to the left side of the outer wall of the rotor disk (5). The inner walls of multiple connecting grooves (4) are fixedly connected to the outer walls of the connecting blocks (6). An elastic buffer pad (7) is provided on the outer walls of multiple connecting blocks (6). An injection-molded sealing stator (8) is fixedly connected to the inner wall of the rotor disk (5). A shell (9) is fixedly connected to the outer wall of the injection-molded sealing stator (8). A magnetic suction mechanism (2) is provided on the right side of the outer wall of the rotor disk (5).

2. The rotor magnetic ring mounting structure of a cross-flow wind turbine motor according to claim 1, characterized in that: The magnetic attraction mechanism (2) includes multiple fixing blocks (201). The left side of the outer wall of the multiple fixing blocks (201) is fixedly connected to the right side of the corresponding rotor disk (5). The right side of the inner wall of the multiple fixing blocks (201) is provided with mounting holes (202). The inner wall of the multiple mounting holes (202) is fixedly connected with magnetic plates (203). The left side of the inner wall of the injection-molded sealing stator (8) is fixedly connected with fixing blocks (204). The left side of the multiple fixing blocks (204) is fixedly connected with magnetic heads (205). The outer wall of the multiple magnetic heads (205) engages with the outer wall of the multiple magnetic plates (203).

3. The rotor magnetic ring mounting structure of a cross-flow wind turbine motor according to claim 1, characterized in that: Two screws (10) are fixedly connected to the front side of the outer wall of the outer shell (9), and two connecting holes (11) are opened on the front side of the outer wall of the injection-molded sealing stator (8). The outer walls of the two screws (10) engage with the inner walls of the connecting holes (11).

4. The rotor magnetic ring mounting structure of a cross-flow wind turbine motor according to claim 2, characterized in that: The rotor disk (5) has mounting holes (12) around its right end, and the inner walls of the mounting holes (12) are fixedly connected to the left side of the outer walls of the fixing blocks (201).

5. The rotor magnetic ring mounting structure of a cross-flow wind turbine motor according to claim 1, characterized in that: The outer wall of the rotor disk (5) is provided with connecting grooves (13) on all four sides, and the inner walls of the multiple connecting grooves (13) engage with the injection-molded sealing stator (8).

6. The rotor magnetic ring mounting structure of a cross-flow wind turbine motor according to claim 1, characterized in that: The outer walls of the multiple connecting blocks (6) are each provided with a mounting groove (14), and the inner walls of the multiple mounting grooves (14) are respectively fixedly connected to the right side of the outer walls of the multiple elastic buffer pads (7).

7. The rotor magnetic ring mounting structure of a cross-flow wind turbine motor according to claim 1, characterized in that: A connecting line (15) is fixedly connected to the rear side of the outer wall of the injection-molded sealing stator (8), and a connector (16) is fixedly connected to the right end of the connecting line (15).

8. The rotor magnetic ring mounting structure of a cross-flow wind turbine motor according to claim 2, characterized in that: The inner wall of the injection-molded sealing stator (8) has mounting grooves (17) on all four sides on the left side, and the inner walls of the multiple mounting grooves (17) are respectively fixedly connected to the multiple fixing blocks (204).

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