Rotor structure, electric machine and ceiling fan

Abstract

This invention provides a rotor structure, a motor, and a ceiling fan. The rotor structure includes a rotating shaft and a main body assembly. The main body assembly includes a first baffle, a rotor core, and a second baffle arranged sequentially along the axial direction of the rotating shaft. The rotating shaft has a first limiting groove and a second limiting groove communicating with the first limiting groove. The first limiting groove extends along the axial direction of the rotating shaft, and the second limiting groove extends along the circumferential direction of the rotating shaft. The rotor structure further includes: a first limiting part, disposed on the main body assembly and detachably connected to the rotating shaft, the first limiting part being disposed within the first limiting groove to limit the main body assembly in the circumferential direction of the rotating shaft; and a second limiting part, disposed on the main body assembly and detachably connected to the rotating shaft, the second limiting part being disposed within the second limiting groove to limit the main body assembly in the axial direction of the rotating shaft. The rotor structure of this invention solves the problem that the rotor structure in the prior art cannot achieve non-destructive assembly and disassembly.

Description

Technical Field

[0001] This invention relates to the field of motor technology, and more specifically, to a rotor structure, a motor, and a ceiling fan. Background Technology

[0002] Ceiling fans are a primary cooling device in production and storage buildings. The motors used in ceiling fans are typically characterized by high power, large size, and heavy weight. Therefore, the requirements for temperature rise and reliability performance of these motors are generally quite stringent.

[0003] Currently, the most commonly used motors for ceiling fans are permanent magnet DC motors. To ensure a large torque and magnetic performance while reducing eddy current losses, a short shaft is often used in conjunction with a large rotor to reduce the cantilever length. Due to the large rotor diameter and long cantilever, a fastening device is required. This device includes a fastening structure and front and rear baffles located on both sides of the rotor core. The fastening structure secures the rotor core, front and rear baffles together, ensuring that the laminations and magnets away from the shaft end do not bend or fall apart, preventing abnormal failures during operation that could lead to motor stoppage, overheating, impact, or other dangerous situations.

[0004] However, the rotor core, front baffle, and rear baffle of the aforementioned motor are welded to the short shaft after being assembled as a whole. If the magnets fail or are damaged and the rotor needs to be repaired, it is impossible to achieve non-destructive disassembly and assembly of the rotor structure. In addition, the rotor structure has poor heat dissipation performance. Summary of the Invention

[0005] The main objective of this invention is to provide a rotor structure, motor, and ceiling fan to solve the problem that the rotor structure in the prior art cannot be disassembled and assembled without damage.

[0006] To achieve the above objectives, according to a first aspect of the present invention, a rotor structure is provided, including a rotating shaft and a main body assembly. The main body assembly includes a first baffle, a rotor core, and a second baffle arranged sequentially along the axial direction of the rotating shaft. The rotating shaft is provided with a first limiting groove and a second limiting groove communicating with the first limiting groove. The first limiting groove extends along the axial direction of the rotating shaft, and the second limiting groove extends along the circumferential direction of the rotating shaft. The rotor structure further includes: a first limiting portion disposed on the main body assembly and detachably connected to the rotating shaft, the first limiting portion being disposed within the first limiting groove to limit the main body assembly in the circumferential direction of the rotating shaft; and a second limiting portion disposed on the main body assembly and detachably connected to the rotating shaft, the second limiting portion being disposed within the second limiting groove to limit the main body assembly in the axial direction of the rotating shaft.

[0007] Furthermore, the rotating shaft includes a mounting shaft section, the first end of the first limiting groove extends to the first end of the mounting shaft section to form a mounting opening, and the second end of the first limiting groove extends toward the second end of the mounting shaft section to form a stop step; wherein, a first limiting part is provided on the first baffle, the first limiting part is slidably disposed along the first limiting groove after passing through the mounting opening and is stopped on the stop step; a second limiting part is provided on the second baffle, the second limiting part is slidably disposed along the first limiting groove after passing through the mounting opening to enter the second limiting groove.

[0008] Furthermore, the rotating shaft is provided with multiple first limiting grooves, which are spaced apart along the circumferential direction of the rotating shaft; a second limiting groove is arranged around the axis of the rotating shaft to penetrate the multiple first limiting grooves, and the multiple first limiting grooves divide the second limiting groove into multiple limiting groove segments; the inner wall of the first mounting hole of the first baffle is provided with multiple first limiting parts, which are spaced apart along the circumferential direction of the first baffle, and the multiple first limiting parts are arranged one-to-one with the multiple first limiting grooves, with each first limiting part set in a corresponding first limiting groove; the inner wall of the second mounting hole of the second baffle is provided with multiple second limiting parts, which are spaced apart along the circumferential direction of the second baffle, and the multiple second limiting parts are arranged one-to-one with the multiple limiting groove segments, with each second limiting part set in a corresponding limiting groove segment.

[0009] Furthermore, a first limiting part is provided on the inner wall of the third mounting hole of the rotor core. The first limiting part of the rotor core is slidably set along the first limiting groove after passing through the mounting port and is stopped on the first limiting part of the first baffle.

[0010] Furthermore, the rotating shaft is provided with multiple second limiting grooves, which are spaced apart along the axial direction of the rotating shaft.

[0011] Furthermore, the rotor structure also includes: a plurality of first heat sinks, which are spaced apart on the first baffle and are integrally formed with the first baffle.

[0012] Furthermore, multiple first heat sinks are spaced apart along the circumferential direction of the first baffle; and / or, each first heat sink has a first free end and a first connecting end disposed opposite to each other, the first connecting end being connected to the end face of the first baffle away from the rotor core, and the first free end extending along the axial direction of the first baffle in a direction away from the rotor core.

[0013] Furthermore, the rotor structure also includes: multiple second heat sinks, which are spaced apart on the second baffle and are integrally formed with the second baffle.

[0014] Furthermore, multiple second heat sinks are spaced apart along the circumferential direction of the second baffle; and / or, each second heat sink has a second free end and a second connecting end disposed opposite to each other, the second connecting end being connected to the end face of the second baffle away from the rotor core, and the second free end extending along the axial direction of the second baffle in a direction away from the rotor core.

[0015] Furthermore, the rotor structure also includes a fastening assembly, wherein the first baffle, the rotor core, and the second baffle are all detachably connected to the fastening assembly, and the first baffle, the rotor core, and the second baffle are fastened together under the action of the fastening assembly.

[0016] According to a second aspect of the present invention, an electric motor is provided, comprising the rotor structure described above.

[0017] According to a third aspect of the invention, a ceiling fan is provided, including the motor described above.

[0018] The rotor structure, utilizing the technical solution of this invention, includes a rotating shaft, a main body assembly, a first limiting part, and a second limiting part. The main body assembly includes a first baffle, a rotor core, and a second baffle. The rotating shaft is provided with a first limiting groove and a second limiting groove communicating with the first limiting groove. The first baffle, the rotor core, and the second baffle are connected to the rotating shaft one by one, so that the first limiting part is limited within the first limiting groove, preventing the main body assembly from rotating relative to the rotating shaft, and the second limiting part is limited within the second limiting groove, preventing the main body assembly from moving relative to the rotating shaft in the axial direction. Thus, the first and second limiting parts enable detachable assembly and disassembly of the main body assembly and the rotating shaft. If the magnet fails or is damaged and the rotor needs repair, the rotating shaft and the main body assembly can be disassembled for repair without damaging the entire rotor structure. This solves the problem of non-destructive disassembly and assembly of rotor structures in the prior art, improves the stability and reliability of the motor, and increases production efficiency. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0020] Figure 1 An exploded view of an embodiment of the rotor structure according to the present invention is shown;

[0021] Figure 2 A schematic diagram of the rotor shaft according to the present invention is shown;

[0022] Figure 3 A cross-sectional view of an embodiment of the rotor structure according to the present invention is shown;

[0023] Figure 4A schematic diagram of an embodiment of the rotor structure according to the present invention is shown;

[0024] Figure 5 A schematic diagram of the assembly of the second baffle and the shaft, the first baffle and the rotor core according to the present invention is shown.

[0025] Figure 6 A schematic diagram of the second baffle of the rotor structure according to the present invention is shown;

[0026] Figure 7 An assembly schematic diagram of the rotor core, first baffle, and rotating shaft according to the rotor structure of the present invention is shown;

[0027] Figure 8 A schematic diagram of a rotor core according to the rotor structure of the present invention is shown;

[0028] Figure 9 A schematic diagram of the assembly of the first baffle and the rotating shaft according to the present invention is shown;

[0029] Figure 10 A schematic diagram of the first baffle of the rotor structure according to the present invention is shown.

[0030] The above figures include the following reference numerals:

[0031] 10. Rotating shaft; 11. First limiting groove; 12. Second limiting groove; 122. Limiting groove section; 13. Mounting shaft section; 14. Mounting port; 15. Stop step; 21. First baffle; 211. First mounting hole; 22. Rotor core; 221. Third mounting hole; 223. Fourth mounting groove; 224. Heat dissipation hole; 23. Second baffle; 231. Second mounting hole; 30. First limiting part; 40. Second limiting part; 60. First heat sink; 70. Second heat sink; 80. Fastening assembly; 81. Bolt; 82. Nut; 90. Magnet. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0034] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0035] This invention provides a rotor structure, please refer to... Figures 1 to 10 The rotor structure includes a rotating shaft 10 and a main body assembly. The main body assembly includes a first baffle 21, a rotor core 22, and a second baffle 23 arranged sequentially along the axial direction of the rotating shaft 10. The rotating shaft 10 is provided with a first limiting groove 11 and a second limiting groove 12 communicating with the first limiting groove 11. The first limiting groove 11 extends along the axial direction of the rotating shaft 10, and the second limiting groove 12 extends along the circumferential direction of the rotating shaft 10. The rotor structure also includes: a first limiting part 30, which is disposed on the main body assembly and detachably connected to the rotating shaft 10. The first limiting part 30 is disposed in the first limiting groove 11 to limit the main body assembly in the circumferential direction of the rotating shaft 10; and a second limiting part 40, which is disposed on the main body assembly and detachably connected to the rotating shaft 10. The second limiting part 40 is disposed in the second limiting groove 12 to limit the main body assembly in the axial direction of the rotating shaft 10.

[0036] The rotor structure of the present invention includes a rotating shaft 10, a main body assembly, a first limiting part 30 and a second limiting part 40. The main body assembly includes a first baffle 21, a rotor core 22 and a second baffle 23. The rotating shaft 10 is provided with a first limiting groove 11 and a second limiting groove 12 that communicates with the first limiting groove 11. The first baffle 21, rotor core 22, and second baffle 23 are connected to the rotating shaft 10 one by one, so that the first limiting part 30 is limited within the first limiting groove 11 to prevent the main body assembly from rotating relative to the rotating shaft 10, and the second limiting part 40 is limited within the second limiting groove 12 to prevent the main body assembly from moving relative to the rotating shaft 10 in the axial direction. Thus, the main body assembly and the rotating shaft 10 can be detachably assembled through the first limiting part 30 and the second limiting part 40. If the magnet fails or is damaged and the rotor needs to be repaired, the rotating shaft 10 can be disassembled from the main body assembly for repair without damaging the entire rotor structure. This solves the problem that the rotor structure cannot be disassembled and assembled without damage in the prior art, improves the stability and reliability of the motor, and increases production benefits.

[0037] Specifically, the first baffle 21 is the front baffle, and the second baffle 23 is the rear baffle.

[0038] In this embodiment, the rotating shaft 10 includes a mounting shaft section 13. The first end of the first limiting groove 11 extends to the first end of the mounting shaft section 13 to form a mounting opening 14. The second end of the first limiting groove 11 extends toward the second end of the mounting shaft section 13 to form a stop step 15. The first baffle 21 is provided with a first limiting part 30. The first limiting part 30 passes through the mounting opening 14 and is slidably disposed along the first limiting groove 11 and stops on the stop step 15. The second baffle 23 is provided with a second limiting part 40. The second limiting part 40 passes through the mounting opening 14 and is slidably disposed along the first limiting groove 11 to enter the second limiting groove 12.

[0039] Specifically, when assembling the first baffle 21, the first limiting part 30 is inserted from the mounting port 14 into the first limiting groove 11. The first limiting part 30 slides within the first limiting groove 11 until it is stopped by the stopping step 15. The stopping step 15 prevents the first baffle 21 from moving away from the mounting port 14 along the axial direction of the rotating shaft 10, thus preventing the first baffle 21 from falling off the rotating shaft 10. The first limiting groove 11 circumferentially limits the first limiting part 30, preventing the first baffle 21 from being positioned relative to the rotating shaft. When the shaft 10 rotates, during the assembly of the second baffle 23, the second limiting part 40 is inserted from the mounting port 14 into the first limiting groove 11. The second limiting part 40 slides within the first limiting groove 11 to the second limiting groove 12, where it enters the second limiting groove 12. The second limiting groove 12 axially limits the second limiting part 40, preventing the second baffle 23 from moving towards the mounting port 14 along the axial direction of the shaft 10, and preventing the second baffle 23 from detaching from the shaft 10. This arrangement enables the main component to be detachably connected to the shaft 10.

[0040] In this embodiment, a plurality of first limiting grooves 11 are provided on the rotating shaft 10, and the plurality of first limiting grooves 11 are spaced apart along the circumferential direction of the rotating shaft 10; a second limiting groove 12 is provided around the axis of the rotating shaft 10 to penetrate the plurality of first limiting grooves 11, and the plurality of first limiting grooves 11 divide the second limiting groove 12 into multiple limiting groove segments 122; a plurality of first limiting portions 30 are provided on the inner wall of the first mounting hole 211 of the first baffle 21, and the plurality of first limiting portions 30 are spaced apart along the circumferential direction of the first baffle 21. The second baffle 23 has multiple first limiting parts 30 and multiple first limiting grooves 11 arranged in a one-to-one correspondence, with each first limiting part 30 disposed in the corresponding first limiting groove 11; the second baffle 23 has multiple second limiting parts 40 arranged on the inner wall of the second mounting hole 231, the multiple second limiting parts 40 are arranged at intervals along the circumferential direction of the second baffle 23, the multiple second limiting parts 40 are arranged in a one-to-one correspondence with multiple limiting groove segments 122, and each second limiting part 40 is disposed in the corresponding limiting groove segment 122.

[0041] Specifically, when assembling the first baffle 21, multiple first limiting parts 30 are placed into the corresponding first limiting grooves 11 from the mounting port 14. The multiple first limiting grooves 11 respectively limit the corresponding first limiting parts 30 circumferentially, and the multiple first limiting grooves 11 together limit the first baffle 21, further preventing the first baffle 21 from rotating relative to the rotating shaft 10. When assembling the second baffle 23, multiple second limiting parts 40 are placed into the corresponding first limiting grooves 11 from the mounting port 14. The multiple second limiting parts 40 slide in the first limiting grooves 11 to the second limiting grooves 12, and the second limiting parts 40 enter the corresponding limiting groove segments 122. The multiple limiting groove segments 122 limit the corresponding second limiting parts 40 axially, further preventing the second baffle 23 from moving in the axial direction of the rotating shaft 10 toward the direction closer to the mounting port 14, and preventing the second baffle 23 from falling off the rotating shaft 10. This configuration ensures a more reliable connection between the first baffle 21 and the second baffle 23 and the rotating shaft 10, preventing local movement.

[0042] Optionally, there are 3 first limiting grooves 11, and correspondingly, the second limiting groove 12 is divided into 3 limiting groove segments 122.

[0043] In this embodiment, a first limiting part 30 is provided on the inner wall of the third mounting hole 221 of the rotor core 22. The first limiting part 30 of the rotor core 22 is slidably provided along the first limiting groove 11 after passing through the mounting port 14 and is stopped on the first limiting part 30 of the first baffle 21.

[0044] Specifically, the rotor structure also includes magnets 90, and the rotor core 22 also includes a plurality of fourth mounting slots 223 spaced apart along its circumferential direction, all of which are used to mount magnets 90; the rotor core 22 has a plurality of spaced heat dissipation holes 224 to dissipate heat from the rotor structure.

[0045] In specific implementation, when assembling the rotor core 22, the first limiting part 30 of the rotor core 22 is placed into the first limiting groove 11 from the mounting port 14. The first limiting part 30 of the rotor core 22 slides in the first limiting groove 11 until it is stopped by the first limiting part 30 of the first baffle 21. The first limiting part 30 of the first baffle 21 prevents the rotor core 22 from moving away from the mounting port 14 along the axial direction of the rotating shaft 10, and prevents the rotor core 22 from falling off the rotating shaft 10. The first limiting groove 11 circumferentially limits the first limiting part 30 of the rotor core 22, and prevents the rotor core 22 from rotating relative to the rotating shaft 10.

[0046] In this embodiment, a plurality of second limiting grooves 12 are provided on the rotating shaft 10, and the plurality of second limiting grooves 12 are spaced apart along the axial direction of the rotating shaft 10.

[0047] Specifically, when the thickness of the rotor core 22 is different, the second limiting part 40 is set in different second limiting grooves 12. The multiple second limiting grooves 12 are spaced apart along the axial direction of the rotating shaft 10, which expands the application range of the rotor structure and makes it suitable for rotor cores 22 with different thicknesses.

[0048] In this embodiment, the rotor structure further includes: a plurality of first heat sinks 60, which are spaced apart on the first baffle 21 and are integrally formed with the first baffle 21.

[0049] Specifically, multiple first heat sinks 60 are used to dissipate heat from the rotor structure, increasing the heat dissipation surface area of ​​the rotor structure and improving its heat dissipation capacity. Furthermore, when the rotor structure rotates during operation, the first baffle 21 rotates, and the multiple first heat sinks 60 can act as blades to blow air for heat dissipation, further improving the rotor structure's heat dissipation capacity. Moreover, the fact that the multiple first heat sinks 60 and the first baffle 21 are integrally formed simplifies the production process, facilitates processing, improves production efficiency, and reduces production costs.

[0050] In this embodiment, multiple first heat sinks 60 are spaced apart along the circumferential direction of the first baffle 21. This arrangement enables uniform heat dissipation from the main component, avoids localized overheating, and enhances the heat dissipation effect.

[0051] In this embodiment, each of the first heat sinks 60 has a first free end and a first connecting end disposed opposite to each other. The first connecting end is connected to the end face of the first baffle 21 away from the rotor core 22, and the first free end extends along the axial direction of the first baffle 21 in a direction away from the rotor core 22. This arrangement can prevent the first heat sinks 60 from interfering with the rotor core 22 and affecting the assembly of the rotor core.

[0052] It should be noted that the shape and arrangement of the first heat sink 60 can be flexibly adjusted according to the size of the rotor core 22 and the internal space of the motor and the heat level of the rotor structure.

[0053] In this embodiment, the rotor structure further includes: a plurality of second heat sinks 70, which are spaced apart on the second baffle 23 and are integrally formed with the second baffle 23.

[0054] Specifically, multiple second heat sinks 70 are used to dissipate heat from the rotor structure, increasing the heat dissipation surface area of ​​the rotor structure and improving its heat dissipation capacity. Furthermore, when the rotor structure rotates during operation, the second baffle 23 also rotates, and the multiple second heat sinks 70 can act as blades to blow air for heat dissipation, further improving the rotor structure's heat dissipation capacity. Moreover, the fact that the multiple second heat sinks 70 and the second baffle 23 are integrally formed simplifies the production process, facilitates processing, improves production efficiency, and reduces production costs.

[0055] In this embodiment, multiple second heat sinks 70 are spaced apart along the circumferential direction of the second baffle 23. This arrangement can dissipate heat evenly to the main component, avoid local overheating, and enhance the heat dissipation effect.

[0056] In this embodiment, each of the second heat sinks 70 has a second free end and a second connecting end disposed opposite to each other. The second connecting end is connected to the end face of the second baffle 23 away from the rotor core 22, and the second free end extends along the axial direction of the second baffle 23 in a direction away from the rotor core 22. This arrangement can prevent the second heat sinks 70 from interfering with the rotor core 22 and affecting the assembly of the rotor core.

[0057] It should be noted that the shape and arrangement of the second heat sink 70 can be flexibly adjusted according to the size of the rotor core 22 and the internal space of the motor and the heat level of the rotor structure.

[0058] In this embodiment, the rotor structure further includes a fastening assembly 80. The first baffle 21, the rotor core 22, and the second baffle 23 are all detachably connected to the fastening assembly 80. The first baffle 21, the rotor core 22, and the second baffle 23 are fastened together under the action of the fastening assembly 80.

[0059] Specifically, after the first baffle 21, the rotor core 22, and the second baffle 23 are all assembled onto the rotating shaft 10, the fastening assembly 80 is installed. The fastening assembly 80 fastens the first baffle 21, the rotor core 22, and the second baffle 23 together to prevent the first baffle 21, the rotor core 22, and the second baffle 23 from separating.

[0060] Optionally, the fastening assembly 80 includes a bolt and a nut, or the fastening assembly 80 is a rivet or other detachable fastening assembly. In a specific implementation, when the fastening assembly 80 includes a bolt 81 and a nut 82, the first baffle 21, the rotor core 22, and the second baffle 23 are all provided with fastening holes. By aligning the fastening holes on the first baffle 21, the rotor core 22, and the second baffle 23, the bolt 81 is inserted and the nut 82 is tightened to achieve a fastening connection between the first baffle 21, the rotor core 22, and the second baffle 23.

[0061] In specific implementation, the assembly sequence of the rotor structure of the present invention is as follows: Align the first limiting part 30 of the first baffle with the first limiting groove 11 of the rotating shaft 10 and place it in. The first limiting part 30 and the first limiting groove 11 cooperate with each other to prevent the first baffle 21 from rotating relative to the rotating shaft 10. The stop step 15 prevents the first baffle 21 from moving away from the mounting port 14 along the axial direction of the rotating shaft 10. Then, align the first limiting part 30 and the first limiting groove 11 of the rotor core 22 and place the rotor core 22 in. Insert the magnet 90 into the fourth mounting groove 223 in the required sequence. The first limiting groove 11 circumferentially limits the first limiting part 30 of the rotor core 22 to prevent the rotor core 22 from rotating away from the mounting port 14. 2. The second baffle 23 rotates relative to the rotating shaft 10; the second limiting part 40 of the second baffle 23 is inserted from the mounting port 14 into the first limiting groove 11, and the second limiting part 40 slides in the first limiting groove 11 to the second limiting groove 12. The second baffle 23 is rotated 60 degrees around the rotating shaft 10 so that the second limiting part 40 enters the second limiting groove 12. The second limiting groove 12 axially limits the second limiting part 40 to prevent the second baffle 23 from moving in the axial direction of the rotating shaft 10 toward the mounting port 14. After the above operation is completed, the six bolt holes and threaded holes of the first baffle 21, the rotor core 22 and the second baffle 23 are kept on the six axes and locked by the fastening assembly 80.

[0062] The present invention also provides an electric motor, including the rotor structure described in the above embodiments.

[0063] The motor of the present invention includes the rotor structure in the above embodiments. The rotor structure includes a rotating shaft 10, a main body assembly, a first limiting part 30 and a second limiting part 40. The main body assembly includes a first baffle 21, a rotor core 22 and a second baffle 23. The rotating shaft 10 is provided with a first limiting groove 11 and a second limiting groove 12 that communicates with the first limiting groove 11. The first baffle 21, rotor core 22, and second baffle 23 are connected to the rotating shaft 10 one by one, so that the first limiting part 30 is limited within the first limiting groove 11 to prevent the main body assembly from rotating relative to the rotating shaft 10, and the second limiting part 40 is limited within the second limiting groove 12 to prevent the main body assembly from moving relative to the rotating shaft 10 in the axial direction. Thus, the first limiting part 30 and the second limiting part 40 enable detachable assembly and disassembly of the main body assembly and the rotating shaft 10. If the magnet fails or is damaged and the rotor needs repair, the rotating shaft 10 can be disassembled from the main body assembly for repair without damaging the entire rotor structure. This solves the problem of non-destructive disassembly and assembly of the rotor structure in the prior art, improves the stability and reliability of the motor, and increases production efficiency. The present invention also provides a ceiling fan, including the motor in the above embodiments.

[0064] The ceiling fan of the present invention includes the motor in the above embodiments. The motor includes the rotor structure in the above embodiments. The rotor structure includes a rotating shaft 10, a main body assembly, a first limiting part 30 and a second limiting part 40. The main body assembly includes a first baffle 21, a rotor core 22 and a second baffle 23. The rotating shaft 10 is provided with a first limiting groove 11 and a second limiting groove 12 that communicates with the first limiting groove 11. The first baffle 21, rotor core 22, and second baffle 23 are connected to the rotating shaft 10 one by one, so that the first limiting part 30 is limited within the first limiting groove 11 to prevent the main body assembly from rotating relative to the rotating shaft 10, and the second limiting part 40 is limited within the second limiting groove 12 to prevent the main body assembly from moving relative to the rotating shaft 10 in the axial direction. Thus, the first limiting part 30 and the second limiting part 40 enable detachable assembly and disassembly of the main body assembly and the rotating shaft 10. If the magnet fails or is damaged and the rotor needs repair, the rotating shaft 10 can be disassembled from the main body assembly for repair without damaging the entire rotor structure. This solves the problem of non-destructive disassembly and assembly of the rotor structure in the prior art, improves the stability and reliability of the motor, and increases production efficiency. The present invention also provides a ceiling fan, including the motor in the above embodiments.

[0065] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0066] The rotor structure of the present invention is fastened by clamping the rotor core 22 with the first baffle 21 and the second baffle 23, which improves the assembly strength and allows for disassembly and maintenance through non-destructive operation. At the same time, the first heat sink 60 and the second heat sink 70 are respectively provided on the first baffle 21 and the second baffle 23 to increase the heat dissipation area and act as fan blades to improve heat dissipation performance. The rotor structure of the present invention overcomes the inconvenience caused by existing welding, making the applied motor products more competitive in the market.

[0067] The motor of the present invention includes the rotor structure in the above embodiments. The rotor structure includes a rotating shaft 10, a main body assembly, a first limiting part 30 and a second limiting part 40. The main body assembly includes a first baffle 21, a rotor core 22 and a second baffle 23. The rotating shaft 10 is provided with a first limiting groove 11 and a second limiting groove 12 that communicates with the first limiting groove 11. The first baffle 21, rotor core 22, and second baffle 23 are connected to the rotating shaft 10 one by one, so that the first limiting part 30 is limited within the first limiting groove 11 to prevent the main body assembly from rotating relative to the rotating shaft 10, and the second limiting part 40 is limited within the second limiting groove 12 to prevent the main body assembly from moving relative to the rotating shaft 10 in the axial direction. Thus, the first limiting part 30 and the second limiting part 40 enable detachable assembly and disassembly of the main body assembly and the rotating shaft 10. If the magnet fails or is damaged and the rotor needs repair, the rotating shaft 10 can be disassembled from the main body assembly for repair without damaging the entire rotor structure. This solves the problem of non-destructive disassembly and assembly of the rotor structure in the prior art, improves the stability and reliability of the motor, and increases production efficiency. The present invention also provides a ceiling fan, including the motor in the above embodiments.

[0068] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0069] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0070] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A rotor structure comprising a rotating shaft (10) and a main body assembly including a first barrier (21), a rotor core (22), and a second barrier (23) arranged in this order in an axial direction of the rotating shaft (10), characterized in that, The rotating shaft (10) is provided with a first limiting groove (11) and a second limiting groove (12) communicating with the first limiting groove (11). The first limiting groove (11) extends along the axial direction of the rotating shaft (10), and the second limiting groove (12) extends along the circumferential direction of the rotating shaft (10). The rotor structure further includes: A first limiting part (30) is disposed on the main body component and detachably connected to the rotating shaft (10). The first limiting part (30) is disposed in the first limiting groove (11) so that the main body component is limited in the circumferential direction of the rotating shaft (10). The second limiting part (40) is disposed on the main body assembly and detachably connected to the rotating shaft (10). The second limiting part (40) is disposed in the second limiting groove (12) so that the main body assembly is limited in the axial direction of the rotating shaft (10). The rotating shaft (10) includes a mounting shaft section (13), the first end of the first limiting groove (11) extends to the first end of the mounting shaft section (13) to form a mounting opening (14), and the second end of the first limiting groove (11) extends toward the second end of the mounting shaft section (13) to form a stop step (15); wherein, the first baffle (21) is provided with a first limiting part (30), the first limiting part (30) is slidably disposed along the first limiting groove (11) after passing through the mounting opening (14) and stops on the stop step (15); the second baffle (23) is provided with a second limiting part (40), the second limiting part (40) is slidably disposed along the first limiting groove (11) after passing through the mounting opening (14) to enter the second limiting groove (12); The rotating shaft (10) is provided with a plurality of first limiting grooves (11), which are spaced apart along the circumferential direction of the rotating shaft (10); the second limiting groove (12) is arranged around the axis of the rotating shaft (10) to pass through the plurality of first limiting grooves (11), and the plurality of first limiting grooves (11) divide the second limiting groove (12) into multiple limiting groove segments (122); the inner wall of the first mounting hole (211) of the first baffle (21) is provided with a plurality of first limiting parts (30), which are spaced apart along the circumferential direction of the first baffle (21). The first limiting part (30) is arranged in a one-to-one correspondence with the first limiting groove (11), and each first limiting part (30) is arranged in the corresponding first limiting groove (11); the second baffle (23) has a plurality of second limiting parts (40) arranged on the inner wall of the second mounting hole (231), the plurality of second limiting parts (40) are arranged at intervals along the circumferential direction of the second baffle (23), the plurality of second limiting parts (40) are arranged in a one-to-one correspondence with the plurality of limiting groove segments (122), and each second limiting part (40) is arranged in the corresponding limiting groove segment (122).

2. The rotor structure according to claim 1, characterized in that, The first limiting part (30) is provided on the inner wall of the third mounting hole (221) of the rotor core (22). The first limiting part (30) of the rotor core (22) is slidably set along the first limiting groove (11) after passing through the mounting port (14) and is stopped on the first limiting part (30) of the first baffle (21).

3. The rotor structure according to any one of claims 1 to 2, characterized in that, The rotating shaft (10) is provided with a plurality of second limiting grooves (12), and the plurality of second limiting grooves (12) are spaced apart along the axial direction of the rotating shaft (10).

4. The rotor structure according to any one of claims 1 to 2, characterized in that, The rotor structure also includes: Multiple first heat sinks (60) are spaced apart on the first baffle (21) and are integrally formed with the first baffle (21).

5. The rotor structure according to claim 4, characterized in that, A plurality of the first heat sinks (60) are spaced apart along the circumferential direction of the first baffle (21); and / or, Each of the first heat sinks (60) has a first free end and a first connecting end disposed opposite to each other. The first connecting end is connected to the end face of the first baffle (21) away from the rotor core (22). The first free end extends along the axial direction of the first baffle (21) in a direction away from the rotor core (22).

6. The rotor structure according to any one of claims 1 to 2, characterized in that, The rotor structure also includes: Multiple second heat sinks (70) are spaced apart on the second baffle (23) and are integrally formed with the second baffle (23).

7. The rotor structure according to claim 6, characterized in that, A plurality of the second heat sinks (70) are spaced apart along the circumferential direction of the second baffle (23); and / or, Each of the second heat sinks (70) has a second free end and a second connecting end arranged opposite to each other. The second connecting end is connected to the end face of the second baffle (23) away from the rotor core (22). The second free end extends along the axial direction of the second baffle (23) in a direction away from the rotor core (22).

8. The rotor structure according to any one of claims 1 to 2, characterized in that, The rotor structure also includes: The fastening assembly (80) includes the first baffle (21), the rotor core (22), and the second baffle (23), all of which are detachably connected to the fastening assembly (80). The first baffle (21), the rotor core (22), and the second baffle (23) are fastened together by the fastening assembly (80).

9. An electric motor, characterized in that, The rotor structure includes any one of claims 1 to 8.

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

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