Dual rotor motor

Abstract

This utility model relates to the field of power motor technology, specifically a dual-rotor motor, comprising a housing, a first motor, a second motor, a transmission module, and an output shaft. The housing includes an upper cover and a lower cover connected together. The first motor includes a first stator element, a first rotor element, and a first output element. The first stator element is disposed on the upper cover, and the first rotor element is disposed on the first output element. One end of the first output element is disposed on the upper cover, and the other end is connected to the transmission module. The second motor includes a second stator element, a second rotor element, and a second output element. The second stator element is disposed between the upper and lower covers, and the second rotor element is disposed on the second output element. The second output element is connected to the transmission module, and the output shaft is disposed on the transmission module. This utility model achieves the goals of multi-motor integration, compact space, strong power, and stable operation.

Description

Technical Field

[0001] This utility model relates to the field of power motor technology, and in particular to a dual rotor motor. Background Technology

[0002] In the current field of motor technology, most existing motors adopt a single rotor output design. This traditional motor has a simple structure, typically equipped with only one rotor element and a corresponding stator element, with power output relying on the rotation of a single rotor. Its limitations are quite obvious. When facing complex operating conditions requiring high power and multiple output modes, a single rotor motor struggles to meet practical needs. Because there is only one rotor output, the motor's power and torque output are relatively fixed, making it difficult to flexibly adjust to adapt to different working scenarios. Furthermore, when greater power is required, it can only be achieved by increasing the motor size or power, which not only increases costs but also leads to a larger footprint, hindering system integration and miniaturization design.

[0003] Furthermore, single-rotor motors lack the ability to integrate multiple motors, failing to effectively combine and coordinate the power output of multiple motors. In applications requiring multiple power sources to work together, multiple independent motors must be used, complicating the overall system structure, increasing control difficulty, and raising the probability of malfunctions. Therefore, developing a motor capable of multi-motor integration and flexible power output has become a pressing issue in the field of motor technology. Utility Model Content

[0004] To solve the above problems, this utility model realizes a dual rotor motor that integrates multiple motors, has a compact size, strong power, and stable operation.

[0005] The technical solution adopted by this utility model is as follows: a dual-rotor motor, including a housing, a first motor, a second motor, a transmission module, and an output shaft; the housing includes an upper cover and a lower cover connected together; the first motor includes a first stator element, a first rotor element, and a first output element; the first stator element is disposed on the upper cover, the first rotor element is disposed on the first output element, one end of the first output element is disposed on the upper cover, and the other end is connected to the transmission module; the second motor includes a second stator element, a second rotor element, and a second output element; the second stator element is disposed between the upper cover and the lower cover, the second rotor element is disposed on the second output element, the second output element is connected to the transmission module, and the output shaft is disposed on the transmission module.

[0006] A further improvement to the above scheme is that the upper cover is provided with a fixing post and a fixing ring. The fixing post is located at the axis of the upper cover, and the fixing ring is located on the outer periphery of the fixing post. The first stator element is located on the inner diameter of the fixing ring, and the inner diameter of the first output element is provided with a first bearing, which is connected to the fixing post through the first bearing.

[0007] A further improvement to the above scheme is that the first stator element is provided with a first stator bracket, which is used to fix the first stator element to the inner diameter of the fixing ring.

[0008] A further improvement to the above scheme is that the first output element includes a first output upper bracket and a first output lower bracket. The first output upper bracket is connected to a fixed column through a first bearing. A first rotor slot is provided between the first output upper bracket and the first output lower bracket. The first rotor element is disposed in the first rotor slot.

[0009] A further improvement to the above scheme is that the transmission module includes a transmission bracket, an output gear, a sun gear, and an internal gear disk. The output gear is located at the axis of the transmission bracket, and the sun gear is evenly distributed circumferentially around the output gear and meshes with the output gear and the internal gear disk. The inner diameter of the transmission bracket is connected to the first output element through a second bearing. The output gear is located on the first output element, the output shaft is located on the first output element, and the internal gear disk is located on the second output element.

[0010] A further improvement to the above scheme is that a third bearing is provided between the outer diameter of the transmission bracket and the second output element.

[0011] A further improvement to the above scheme is that a fixing cavity is provided at the connection between the upper cover and the lower cover, the second stator element is disposed in the fixing cavity, the upper cover is provided with a fixing ring, and the outer diameter of the fixing ring is provided with a fourth bearing connected to the second output element.

[0012] A further improvement to the above scheme is that the second output element includes a second upper output bracket and a second lower output bracket, the second upper output bracket is connected to a fourth bearing, and the second rotor element is disposed between the second upper output bracket and the second lower output bracket.

[0013] A further improvement to the above solution is that the lower cover is provided with a mounting platform, the mounting platform is provided with an end cover, the inner diameter of the end cover is provided with an output connecting ring, the output connecting ring is provided with a fifth bearing, and the fifth bearing is connected to the output shaft.

[0014] A further improvement to the above scheme is that a connecting step is provided on the mounting platform, a mating step is provided on the outer diameter of the end cover, and the connecting step and the mating step are opposite to each other and connected by a connecting element.

[0015] The beneficial effects of this utility model are:

[0016] Compared to existing motors, this invention adopts a dual-rotor structure, comprising two independent motors. This allows for the integration of multiple functions or power sources, meeting the power demands of the equipment under different operating conditions and improving its efficiency and adaptability. The stator and rotor of each motor are rationally arranged. The first stator element is located on the upper cover, and the first rotor element is combined with the first output element, ensuring stable and efficient power transmission. The second stator element is located between the upper and lower covers, and the second rotor element is connected to the second output element, forming a compact dual-motor structure. This helps reduce the overall size and facilitates integration into the limited space of the equipment. The output elements of the two motors are connected through a transmission module, with the output shaft located on the transmission module, ensuring that the power of the two motors can be transmitted synchronously or independently to the equipment's drive system. This enhances the equipment's power output capability and enables multiple operating modes, improving operational flexibility and efficiency. The outer casing consists of an upper and lower cover, with a compact structure that facilitates assembly and maintenance while ensuring the internal sealing and protection of the motors, extending their service life. This invention achieves the goals of multi-motor integration, compact space, powerful performance, and stable operation. Its technical effects not only improve the power performance and working efficiency of the equipment, but also enhance the reliability and ease of maintenance, providing a solid technical guarantee for the efficient and long-term operation of the equipment. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the dual-rotor motor of this utility model;

[0018] Figure 2 for Figure 1 A three-dimensional schematic diagram of a dual-rotor motor from another perspective;

[0019] Figure 3 for Figure 1 A top view of a dual-rotor motor;

[0020] Figure 4 for Figure 3 Sectional view of AA;

[0021] Figure 5 for Figure 1 A schematic diagram of the structure of the first motor in a dual-rotor motor;

[0022] Figure 6 for Figure 1 Side view of a dual-rotor motor;

[0023] Figure 7 for Figure 6 A cross-sectional view of BB.

[0024] Explanation of reference numerals in the attached drawings: 1. Outer shell; 11. Upper cover; 11. Fixing post; 111. Fixing ring; 112. Lower cover; 12. Mounting platform; 121. Connecting step; 122. First motor; 2. First stator element; 21. First stator bracket; 211. First rotor element; 22. First output element; 23. First bearing; 231. First output upper bracket; 232. First output lower bracket; 233. First rotor slot; 234. Second motor; 3. Second stator element; 31. Second rotor element; 32. Second output element; 33. Fourth bearing; 331. Second output upper bracket; 332. Second output lower bracket; 333. Transmission module; 4. Transmission bracket; 41. Second bearing; 411. Third bearing; 412. Output gear; 42. Sun gear; 43. Internal gear disk; 44. Output shaft; 5. End cover; 6. Output connecting ring; 61. Fifth bearing; 62. Mating step; 63. Connecting element; 64. Detailed Implementation

[0025] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0026] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0027] Unless otherwise defined, 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 invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Figures 1-7As shown, in one embodiment of this utility model, a dual-rotor motor is disclosed, comprising a housing 1, a first motor 2, a second motor 3, a transmission module 4, and an output shaft 5. The housing 1 includes an upper cover 11 and a lower cover 12, which are connected. The first motor 2 includes a first stator element 21, a first rotor element 22, and a first output element 23. The first stator element 21 is disposed on the upper cover 11, and the first rotor element 22 is disposed on the first output element 23. One end of the first output element 23 is disposed on the upper cover 11, and the other end is connected to the transmission module 4. The second motor 3 includes a second stator element 31, a second rotor element 32, and a second output element 33. The second stator element 31 is disposed between the upper cover 11 and the lower cover 12, and the second rotor element 32 is disposed on the second output element 33. The second output element 33 is connected to the transmission module 4, and the output shaft 5 is disposed on the transmission module 4. This embodiment adopts a dual-rotor structure, comprising two independent motors, enabling the integration of multiple functions or power sources to meet the power requirements of the equipment under different working conditions, thereby improving the equipment's efficiency and adaptability. The stator and rotor of each motor are rationally arranged. The first stator element 21 is mounted on the upper cover 11, and the first rotor element 22 is combined with the first output element 23, ensuring the stability and efficiency of power transmission. The second stator element 31 is located between the upper cover 11 and the lower cover 12, and the second rotor element 32 is connected to the second output element 33, forming a compact dual-motor structure that helps reduce the overall size and facilitates integration into the limited space of the equipment. The output elements of the two motors are connected through a transmission module 4, and the output shaft 5 is mounted on the transmission module 4, ensuring that the power of the two motors can be transmitted synchronously or independently to the equipment's drive system. This enhances the equipment's power output capability and enables multiple working modes, improving the equipment's operational flexibility and working efficiency. The outer casing 1, composed of the upper cover 11 and the lower cover 12, has a compact structure, facilitating assembly and maintenance, while ensuring the sealing and protection performance of the motor's interior, extending the motor's service life. This embodiment achieves the goals of multi-motor integration, compact space, powerful performance, and stable operation. Its technical effects not only improve the equipment's power performance and working efficiency but also enhance its reliability and ease of maintenance, providing a solid technical guarantee for the equipment's efficient and long-term operation.

[0028] The upper cover 11 is provided with a fixing post 111 and a fixing ring 112. The fixing post 111 is located at the axis of the upper cover 11, and the fixing ring 112 is located on the outer periphery of the fixing post 111. The first stator element 21 is located on the inner diameter of the fixing ring 112, and the inner diameter of the first output element 23 is provided with a first bearing 231, which is connected to the fixing post 111. Specifically, the first stator element 21 is provided with a first stator bracket 211, which is used to fix the first stator element 21 on the inner diameter of the fixing ring 112. In this embodiment, the layout of the fixing post 111 and the fixing ring 112 provides a solid and precise support foundation, so that the stator mounting position can be fixed on the upper cover 11, ensuring the relative position stability of the stator and effectively avoiding displacement, loosening or damage caused by vibration or mechanical stress. This improves the overall mechanical rigidity of the motor, helps maintain the stability of the magnetic field, improves the vibration control capability of the motor during high-speed operation, and thus ensures stable output of motor performance. The first stator element 21 and the first stator bracket 211, located within the inner diameter of the fixed ring 112, employ a reasonable fixing method, enabling simple assembly and maintenance of the stator. The first stator bracket 211 serves a positioning and support function, ensuring the uniformity and stability of the stator magnetic field, which helps improve the efficiency and torque output of the motor. Furthermore, the connection design between the first output element 23 and the first bearing 231 helps reduce vibration and noise, improving the overall smoothness of operation. The combination of the first bearing 231 and the fixed column 111 makes torque transmission more stable, reducing mechanical wear and the risk of failure, thereby extending the service life of the motor.

[0029] The first output element 23 includes a first upper output bracket 232 and a first lower output bracket 233. The first upper output bracket 232 is connected to the fixed column 111 via a first bearing 231. A first rotor slot 234 is provided between the first upper output bracket 232 and the first lower output bracket 233, and the first rotor element 22 is disposed within the first rotor slot 234. In this embodiment, the first output element 23 is composed of the first upper output bracket 232 and the first lower output bracket 233, adopting a split design, which helps to achieve modularity of structure and ease of assembly. The first upper output bracket 232 is connected to the fixed column 111 via the first bearing 231, providing a stable support platform, enabling precise positioning of the rotor slot, reducing mechanical vibration and eccentricity, and guiding the smooth operation of the rotor magnet. This ensures high efficiency in torque transmission and also facilitates maintenance and replacement. The first rotor slot 234, located between the first upper output bracket 232 and the first lower output bracket 233, provides a dedicated positioning channel for the embedding of the first rotor element 22. The slot structure can effectively control the relative position of the rotor, ensuring the uniformity and stability of the rotor magnetic field. This has a direct and positive impact on the motor's magnetic efficiency, torque output, and noise control. Furthermore, the combination of the first bearing 231 and the fixed column 111 improves the smoothness of rotor movement, reduces mechanical wear, and extends the equipment's service life.

[0030] The transmission module 4 includes a transmission bracket 41, an output gear 42, a sun gear 43, and an internal gear disk 44. The output gear 42 is located at the axis of the transmission bracket 41. The sun gears 43 are evenly distributed around the output gear 42 and mesh with the output gear 42 and the internal gear disk 44. The inner diameter of the transmission bracket 41 is connected to the first output element 23 via a second bearing 411. The output gear 42 is mounted on the first output element 23, the output shaft 5 is mounted on the first output element 23, and the internal gear disk 44 is mounted on the second output element 33. Specifically, a third bearing 412 connects the outer diameter of the transmission bracket 41 to the second output element 33. In this embodiment, the integrated layout of the transmission bracket 41, output gear 42, sun gear 43, and internal gear disk 44 forms a compact and efficient gear transmission system. The output gear 42 is fixed on the first output element 23 and, as the main output component, directly connects to the driving force, providing a stable torque output for subsequent transmission. The sun gears 43 are evenly distributed circumferentially and mesh with the output gear 42 and the internal gear disk 44 respectively, forming a multi-stage gear transmission. This design helps to achieve balanced torque distribution and optimized transmission ratio, ensuring excellent power performance of the motor under different operating conditions. The second bearing 411 connects the inner diameter of the transmission bracket 41 to the first output element 23, effectively supporting the intermediate transmission structure, reducing mechanical vibration, lowering gear meshing noise, and improving the smoothness and reliability of the transmission. The third bearing 412 is located between the outer diameter of the transmission bracket 41 and the second output element 33, forming a double support structure, enhancing overall rigidity, reducing vibration and eccentricity, and extending the service life of the transmission system. Under high-speed or high-torque conditions, this structure can effectively cope with mechanical stress and torsional deformation, maintaining the accuracy and stability of the transmission system.

[0031] A fixing cavity is provided at the connection between the upper cover 11 and the lower cover 12. The second stator element 31 is disposed within the fixing cavity. The upper cover 11 is provided with a fixing ring 112, and a fourth bearing 331 is provided on the outer diameter of the fixing ring 112 to connect with the second output element 33. Specifically, the second output element 33 includes a second upper output bracket 332 and a second lower output bracket 333. The second upper output bracket 332 is connected with the fourth bearing 331, and the second rotor element 32 is disposed between the second upper output bracket 332 and the second lower output bracket 333. In this embodiment, the fixing cavity at the connection between the upper cover 11 and the lower cover 12, where the second stator element 31 is installed, helps to ensure the precise positioning and fixation of the stator, preventing displacement under vibration or mechanical interference, thereby ensuring the stability of the magnetic field and the output efficiency of the motor. The design of the fixing cavity also simplifies the installation and maintenance process of the stator element, improves the convenience of maintenance, and reduces labor time and labor costs. The fourth bearing 331, disposed on the fixing ring 112, is connected to the second output element 33, greatly enhancing the rigidity and stability of the transmission mechanism. The second output upper bracket 332 is connected to the fixed ring 112 via the fourth bearing 331, effectively supporting the second rotor element 32, ensuring its balance during high-speed rotation, reducing mechanical vibration and noise, and extending the service life of the equipment. The second rotor element 32 is located between the second output upper bracket 332 and the second output lower bracket 333, and is supported by a double bracket, which enhances the rigidity and torsional resistance of the rotor structure.

[0032] The lower cover 12 is provided with a mounting platform 121, on which an end cover 6 is provided. An output connecting ring 61 is provided on the inner diameter of the end cover 6, and a fifth bearing 62 is provided on the output connecting ring 61. The fifth bearing 62 is connected to the output shaft 5. Specifically, a connecting step 122 is provided on the mounting platform 121, and a mating step 63 is provided on the outer diameter of the end cover 6. The connecting step 122 and the mating step 63 are opposite each other and connected by a connecting element 64. In this embodiment, the mounting platform 121 on the lower cover 12, the end cover 6 on the mounting platform 121, and the output connecting ring 61 form a stable support and positioning structure, enhancing the mechanical rigidity of the output shaft 5 and preventing shaft eccentricity or vibration under high-speed rotation or high-load operating conditions. This is beneficial for reducing operating noise, reducing mechanical wear, and extending motor life. The connection between the fifth bearing 62 and the output shaft 5 ensures efficient and stable power transmission and reduces mechanical energy loss. Meanwhile, the design of the output connecting ring 61 effectively limits the radial and axial displacement of the rotor, ensuring stable magnetic field interaction between the rotor and stator, which helps optimize the efficiency and response speed of the motor. The connecting step 122 and the mating step 63 are used to set the connecting element 64, realizing the tight integration of different structural components, enhancing the rigidity of the overall structure, effectively resisting vibration and impact, and ensuring the stable operation of the motor under complex working conditions.

[0033] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A dual-rotor motor, characterized in that: The device includes a housing, a first motor, a second motor, a transmission module, and an output shaft. The housing includes an upper cover and a lower cover connected together. The first motor includes a first stator element, a first rotor element, and a first output element. The first stator element is disposed on the upper cover, and the first rotor element is disposed on the first output element. One end of the first output element is disposed on the upper cover, and the other end is connected to the transmission module. The second motor includes a second stator element, a second rotor element, and a second output element. The second stator element is disposed between the upper and lower covers, and the second rotor element is disposed on the second output element. The second output element is connected to the transmission module, and the output shaft is disposed on the transmission module.

2. The dual-rotor motor according to claim 1, characterized in that: The upper cover is provided with a fixing post and a fixing ring. The fixing post is located at the axis of the upper cover, and the fixing ring is located on the outer periphery of the fixing post. The first stator element is located on the inner diameter of the fixing ring, and the inner diameter of the first output element is provided with a first bearing, which is connected to the fixing post through the first bearing.

3. The dual-rotor motor according to claim 2, characterized in that: The first stator element is provided with a first stator bracket, which is used to fix the first stator element to the inner diameter of the fixing ring.

4. The dual-rotor motor according to claim 1, characterized in that: The first output element includes a first upper output bracket and a first lower output bracket. The first upper output bracket is connected to a fixed column through a first bearing. A first rotor slot is provided between the first upper output bracket and the first lower output bracket. The first rotor element is disposed in the first rotor slot.

5. The dual-rotor motor according to claim 1, characterized in that: The transmission module includes a transmission bracket, an output gear, a sun gear, and an internal gear disk. The output gear is located at the axis of the transmission bracket. The sun gears are evenly distributed around the output gear as the axis and mesh with the output gear and the internal gear disk. The inner diameter of the transmission bracket is connected to the first output element through a second bearing. The output gear is located on the first output element, the output shaft is located on the first output element, and the internal gear disk is located on the second output element.

6. The dual-rotor motor according to claim 5, characterized in that: A third bearing is provided between the outer diameter of the transmission bracket and the second output element.

7. The dual-rotor motor according to claim 1, characterized in that: A fixing cavity is provided at the connection between the upper cover and the lower cover. The second stator element is disposed in the fixing cavity. The upper cover is provided with a fixing ring. A fourth bearing is provided on the outer diameter of the fixing ring and connected to the second output element.

8. The dual-rotor motor according to claim 7, characterized in that: The second output element includes a second upper output bracket and a second lower output bracket. The second upper output bracket is connected to a fourth bearing, and the second rotor element is disposed between the second upper output bracket and the second lower output bracket.

9. The dual-rotor motor according to claim 1, characterized in that: The lower cover is provided with a mounting platform, the mounting platform is provided with an end cover, the inner diameter of the end cover is provided with an output connecting ring, the output connecting ring is provided with a fifth bearing, and the fifth bearing is connected to the output shaft.

10. The dual-rotor motor according to claim 9, characterized in that: The mounting platform is provided with a connecting step, and the outer diameter of the end cap is provided with a mating step. The connecting step and the mating step are opposite each other and are connected by a connecting element.

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