Motor structure

Abstract

The utility model relates to the technical field of motors, in particular to a motor structure, which comprises a base, a stator assembly, a rotor assembly and a shell assembly, the base comprises a first connecting end, a middle end and a second connecting end, the stator assembly is arranged at the middle end, and the shell assembly comprises a first end cover, a second end cover and a shell body; the two ends of the outer shell are provided with a first riveting part and a second riveting part respectively, the first end cover is provided with a first riveting groove, the first riveting part is used for riveting the first riveting groove, the second end cover is provided with a second riveting groove, and the second riveting part is used for riveting the second riveting groove. According to the utility model, through the riveting connection structure, the assembly process is simplified, the connection strength between the end cover and the outer shell is enhanced, the loosening risk in the operation process is reduced, and the overall reliability of the motor is improved.

Description

Technical Field

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

[0002] Electric motors, as devices that convert electrical energy into mechanical energy (or vice versa), play a vital role in modern industry and daily life. From a professional perspective, electric motors primarily operate based on the principle of electromagnetic induction, and their core components typically include a stator, rotor, and electromagnetic windings. In an electric motor, the stator, as the stationary part, is usually equipped with electromagnetic windings to generate a rotating magnetic field. The rotor, as the rotating part, rotates due to the force exerted by the rotating magnetic field through electromagnetic induction, thereby converting electrical energy into mechanical energy. Furthermore, electric motors come in various types to adapt to different application scenarios.

[0003] Existing motor housing structures generally consist of end caps and a housing body, which are fixed together by screws. Assembly using screws is inconvenient and results in poor stability during movement; therefore, improvements to the existing motor housing structure are necessary. Utility Model Content

[0004] To address the aforementioned issues, this invention utilizes a riveted connection structure that simplifies the assembly process, enhances the connection strength between the end cap and the outer casing, reduces the risk of loosening during operation, and improves the overall reliability of the motor structure.

[0005] The technical solution adopted by this utility model is as follows: a motor structure, including a base, a stator assembly, a rotor assembly, and a housing assembly. The base includes a first connecting end, a middle end, and a second connecting end. The stator assembly is disposed at the middle end. The housing assembly includes a first end cover, a second end cover, and a housing body. A first bearing is disposed at the first connecting end, and a second bearing is disposed at the second connecting end. The inner circumference of the first end cover is connected to the first bearing, and its outer circumference is connected to the housing body. The inner circumference of the second end cover is connected to the second bearing, and its outer circumference is connected to the housing body. A first riveting part and a second riveting part are respectively disposed at both ends of the housing body. The first end cover is provided with a first riveting groove, and the first riveting part is used to rivet the first riveting groove. The second end cover is provided with a second riveting groove, and the second riveting part is used to rivet the second riveting groove. The rotor assembly is disposed within the housing body and is opposite to the stator assembly.

[0006] A further improvement to the above scheme is that the base is provided with a mounting part, the stator assembly is provided on the outer periphery of the mounting part, the mounting part is provided with a mounting platform on the side facing the first end cover, and a control board is provided on the mounting platform.

[0007] A further improvement to the above solution is that the mounting platform is provided with mounting holes, the control board is fixed to the mounting holes with screws, and the mounting platform is provided with a clearance trough.

[0008] A further improvement to the above scheme is that a wiring groove is provided at the middle end, one end of the wiring groove is connected to the end of the first connection end and the other end is connected to the mounting platform, and the wiring groove is used for control board wiring.

[0009] A further improvement to the above solution is that the first connecting end is provided with a first mounting step, the second connecting end is provided with a second mounting step, the first bearing is mounted on the first mounting step, and the second bearing is mounted on the second mounting step.

[0010] A further improvement to the above scheme is that a magnetic ring step is provided on the outside of the first end cover located on the first bearing, and an induction magnetic ring is provided on the magnetic ring step, with the induction magnetic ring facing the control board.

[0011] A further improvement to the above solution is that the first connecting end is provided with a first connecting hole, and multiple first connecting holes are provided; the second connecting end is provided with a second connecting hole, and the second connecting hole is located at the axis of the second connecting end.

[0012] A further improvement to the above scheme is that the first end cover is provided with a first mating step for connecting the first bearing, and the second end cover is provided with a second mating step for connecting the second bearing.

[0013] A further improvement to the above solution is that a first positioning step is provided on the outer side of the first end cover, and a second positioning step is provided on the outer side of the second end cover. The first positioning step is used for positioning the first end of the outer shell, and the second positioning step is used for positioning the second end of the outer shell.

[0014] A further improvement to the above scheme is that multiple first riveting parts and multiple second riveting parts are provided, and the number of first riveting grooves and multiple second riveting grooves matches the number of first riveting parts and multiple second riveting parts; a first arc surface is provided at the opening of the first riveting groove, and a second arc surface is provided at the opening of the second riveting groove.

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

[0016] Compared to existing motor structures, this invention provides a robust support structure for each motor component through the first connecting end, middle end, and second connecting end of the base. The stator assembly, positioned at the middle end, ensures precise positioning, maintains stable magnetic field distribution, and effectively improves the motor's electromagnetic conversion efficiency. The housing assembly achieves excellent sealing and structural stability through the cooperation of the first and second end covers with the housing body and its connection to the bearings on the base. The riveting design of the first riveting part and the first riveting groove, and the second riveting part and the second riveting groove, not only simplifies the assembly process but also enhances the connection strength between the end covers and the housing body, reducing the risk of loosening during operation and improving the overall reliability of the motor. The rotor assembly, housed within the housing and opposite the stator assembly, optimizes the magnetic field coupling within the motor, reduces magnetic field leakage, and improves energy transfer efficiency. The housing protects the rotor assembly, effectively resisting interference from external environmental factors such as dust and moisture, extending the motor's service life. Overall, through the collaborative design of its components, the motor structure achieves a high level of performance, reliability, and ease of maintenance, meeting the needs of various application scenarios. Attached Figure Description

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

[0018] Figure 2 for Figure 1 Front view schematic diagram of the motor structure;

[0019] Figure 3 for Figure 2 Sectional view of AA;

[0020] Figure 4 for Figure 1 Exploded view of the structure of the electric motor;

[0021] Figure 5 for Figure 1 An exploded view of the structure of the electric motor from another perspective.

[0022] Explanation of reference numerals in the attached drawings: Base 1, First connecting end 11, First mounting step 111, First connecting hole 112, Intermediate end 12, Wiring groove 121, Second connecting end 13, Second mounting step 131, Second connecting hole 132, First bearing 14, Second bearing 15, Mounting part 16, Mounting platform 161, Mounting hole 162, Clearance groove 163, Control board 17, Stator assembly 2, Rotor assembly 3, Housing assembly 4, First end cover 41, First riveting groove 411, Magnetic ring step 412, Induction magnetic ring 413, First mating step 414, First positioning step 415, Second end cover 42, Second riveting groove 421, Second mating step 422, Second positioning step 423, Housing 43, First riveting part 431, Second riveting part 432. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] 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 1-5As shown, in one embodiment of this utility model, a motor structure is disclosed, including a base 1, a stator assembly 2, a rotor assembly 3, and a housing assembly 4. The base 1 includes a first connecting end 11, a middle end 12, and a second connecting end 13. The stator assembly 2 is disposed at the middle end 12. The housing assembly 4 includes a first end cover 41, a second end cover 42, and a housing body 43. A first bearing 14 is disposed at the first connecting end 11, and a second bearing 15 is disposed at the second connecting end 13. The inner circumference of the first end cover 41 is connected to the first bearing 14, and the outer circumference... The second end cover 42 is connected to the outer casing 43. Its inner circumference is connected to the second bearing 15, and its outer circumference is connected to the outer casing 43. The outer casing 43 has a first riveting part 431 and a second riveting part 432 at both ends. The first end cover 41 has a first riveting groove 411, and the first riveting part 431 is used to rivet the first riveting groove 411. The second end cover 42 has a second riveting groove 421, and the second riveting part 432 is used to rivet the second riveting groove 421. The rotor assembly 3 is disposed inside the outer casing 43 and is opposite to the stator assembly 2. In this embodiment, the first connecting end 11, the middle end 12, and the second connecting end 13 of the base 1 provide a stable support structure for each component of the motor. The stator assembly 2 is located at the middle end 12, enabling precise positioning, ensuring the stability of the magnetic field distribution, and effectively improving the electromagnetic conversion efficiency of the motor. The outer casing assembly 4 achieves good sealing and structural stability through the cooperation of the first end cover 41, the second end cover 42, and the outer casing 43, as well as its connection with the bearing on the base 1. The riveting design of the first riveting part 431 and the first riveting groove 411, and the second riveting part 432 and the second riveting groove 421, not only simplifies the assembly process but also enhances the connection strength between the end cover and the outer casing 43, reducing the risk of loosening during operation and improving the overall reliability of the motor. The rotor assembly 3 is located inside the outer casing 43 and opposite the stator assembly 2, optimizing the magnetic field coupling inside the motor, reducing magnetic field leakage, and improving energy transfer efficiency. The outer casing 43 protects the rotor assembly 3, effectively resisting interference from external environmental factors such as dust and moisture, extending the motor's service life. Overall, through the collaborative design of its components, the motor structure achieves a high level of performance, reliability, and ease of maintenance, meeting the needs of various application scenarios.

[0026] The base 1 is provided with a mounting part 16, and the stator assembly 2 is disposed on the outer periphery of the mounting part 16. A mounting platform 161 is provided on the side of the mounting part 16 facing the first end cover 41, and a control board 17 is disposed on the mounting platform 161. Specifically, the mounting platform 161 is provided with mounting holes 162, and the control board 17 is fixed to the mounting holes 162 by screws. The mounting platform 161 is provided with a clearance groove 163. The clearance groove 163 is used for clearance mounting of electronic components on the control board 17. In this embodiment, the mounting platform 161 is provided on the side of the mounting part 16 facing the first end cover 41. The mounting platform 161 provides a stable mounting position for the control board 17, ensuring that the control board 17 will not shake or shift during motor operation, thus ensuring its reliable operation. By providing mounting holes 162 on the mounting platform 161 and fixing the control board 17 to the mounting holes 162 with screws, the connection is firm and easy to disassemble, facilitating operation during maintenance or replacement of the control board 17. The recessed groove 163 provides space for the electronic components on the control board 17 to be installed in a way that avoids interference between the electronic components and the surface of the mounting platform 161, prevents damage to the components due to compression, effectively protects the electronic components, improves the service life and working performance of the control board 17, and ultimately improves the stability and reliability of the entire motor system.

[0027] A wiring trough 121 is provided at the intermediate end 12. One end of the wiring trough 121 is connected to the end of the first connecting end 11, and the other end is connected to the mounting platform 161. The wiring trough 121 is used for wiring of the control board 17. In this embodiment, the wiring trough 121 rationally plans the wiring of the control board 17, with one end connected to the end of the first connecting end 11 and the other end connected to the mounting platform 161, ensuring the orderly arrangement of the wiring of the control board 17 and avoiding messy wiring, greatly improving the neatness and standardization of the internal wiring of the motor. The standardized wiring trough 121 design helps to reduce electromagnetic interference between lines. Due to the limitation of the wiring direction by the wiring trough 121, the possibility of interference caused by different lines approaching each other or crossing each other is reduced, thereby improving the stability and accuracy of control signal transmission and ensuring the precision of motor control. The wiring trough 121 also provides a certain degree of physical protection for the lines. It can prevent the lines from being damaged by external factors such as vibration and friction during motor operation, extending the service life of the wiring of the control board 17.

[0028] The first connecting end 11 is provided with a first mounting step 111, and the second connecting end 13 is provided with a second mounting step 131. The first bearing 14 is mounted on the first mounting step 111, and the second bearing 15 is mounted on the second mounting step 131. In this embodiment, the first mounting step 111 provides precise positioning for the first bearing 14, ensuring the accuracy and stability of the installation position of the first bearing 14. This allows the first bearing 14 to work reliably in the predetermined position when the motor is running, reducing vibration and noise caused by installation deviations and improving the smoothness of motor operation. Similarly, the second mounting step 131 provides precise positioning and stable support for the second bearing 15, further ensuring the overall stability of motor operation. The 161-step design of the mounting platform facilitates the installation and removal of bearings, making maintenance work easier for maintenance personnel, improving work efficiency, and reducing maintenance costs.

[0029] A magnetic ring step 412 is provided on the outer side of the first end cover 41, located on the first bearing 14. An induction magnetic ring 413 is mounted on the magnetic ring step 412, and the induction magnetic ring 413 is opposite to the control board 17. In this embodiment, the induction magnetic ring 413 is positioned opposite to the control board 17, enabling precise sensing of relevant parameters during motor operation. The magnetic field signal generated by the magnetic ring can be transmitted to the control board 17 in real time, allowing the control board 17 to accurately monitor and regulate key operating states such as motor speed and direction. Through analysis and processing of the feedback information from the induction magnetic ring 413, the control board 17 can promptly adjust the motor's operating mode, ensuring the motor always operates in optimal condition, thereby effectively improving motor operating efficiency. It also enhances the stability and reliability of motor operation, reduces the probability of failures caused by abnormal operating parameters, lowers maintenance costs, extends motor lifespan, and meets the stringent performance requirements of motors in different working scenarios.

[0030] The first connecting end 11 is provided with a first connecting hole 112, and multiple first connecting holes 112 are provided; the second connecting end 13 is provided with a second connecting hole 132, and the second connecting hole 132 is located at the axis of the second connecting end 13. In this embodiment, multiple first connecting holes 112 can provide more connection methods and connection position options, enhancing the flexibility and adaptability of connecting the motor with other components. Appropriate connecting holes can be precisely selected for assembly based on factors such as actual installation space, connection requirements, and mechanical distribution, effectively improving the installation convenience and stability of the overall structure. The second connecting hole 132 is located at the axis of the second connecting end 13, ensuring uniform force transmission and balance during motor operation. Using the axis as the connection point can better maintain the stability of the motor rotation, reduce vibration and noise caused by connection point misalignment, and ensure the smoothness and reliability of motor operation. The second connecting hole 132 penetrates the base 1 and is provided with an internal thread. The internal thread is located at the second connecting end 13 and is used to connect with an external connector. Since the second connecting hole 132 penetrates the base 1, wiring can be achieved.

[0031] The first end cover 41 is provided with a first mating step 414, which is used to connect the first bearing 14. The second end cover 42 is provided with a second mating step 422, which is used to connect the second bearing 15. In this embodiment, the two mating steps provide precise and stable installation positioning for the first bearing 14 and the second bearing 15. Through the tight connection with their respective mating steps, the bearings can be accurately positioned in a preset position, ensuring the precise axial positioning of the motor rotor, reducing operational eccentricity caused by installation deviations, thereby reducing vibration and noise, and improving the smoothness of motor operation. The mating steps can effectively transmit the radial and axial loads borne by the bearings. During motor operation, a reasonably designed mating step can evenly distribute the force on the bearings onto the end cover, enhancing the load-bearing capacity of the entire motor structure, avoiding structural damage caused by excessive local stress, and extending the service life of the motor.

[0032] A first positioning step 415 is provided on the outer side of the first end cover 41, and a second positioning step 423 is provided on the outer side of the second end cover 42. The first positioning step 415 is used for positioning the first end of the outer casing 43, and the second positioning step 423 is used for positioning the second end of the outer casing 43. In this embodiment, the first positioning step 415 precisely positions the first end of the outer casing 43, which ensures that the relative position of the first end cover 41 and the outer casing 43 is accurate during motor assembly, greatly improving the accuracy and stability of assembly. Similarly, the second positioning step 423 positions the second end of the outer casing 43, ensuring the dimensional accuracy of the overall motor structure in the axial direction and reducing component interference problems caused by positioning deviations.

[0033] Multiple first riveting parts 431 and multiple second riveting parts 432 are provided. The number of first riveting grooves 411 and second riveting grooves 421 matches the number of first riveting parts 431 and second riveting parts 432. The groove opening of the first riveting groove 411 is provided with a first arc surface, and the groove opening of the second riveting groove 421 is provided with a second arc surface. In this embodiment, the cooperation of multiple riveting parts and riveting grooves can provide a more stable and uniform connection force during motor assembly. Compared with a single riveting structure, multiple riveting points distribute the force, effectively reducing local stress concentration, improving the stability of the overall motor structure, and reducing the risk of component loosening due to vibration or external impact. The first arc surface at the groove opening of the first riveting groove 411 and the second arc surface at the groove opening of the second riveting groove 421 can guide the riveting components to smoothly enter the groove, playing a guiding role, reducing resistance during the riveting process, and improving the smoothness and accuracy of the riveting operation.

[0034] 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 motor structure, characterized in that: The system includes a base, a control board, a stator assembly, a rotor assembly, and a housing assembly. The base includes a first connecting end, a middle end, and a second connecting end. The stator assembly is disposed at the middle end. The base has a mounting portion, and the stator assembly is disposed on the outer periphery of the mounting portion. A mounting platform is provided on the side of the mounting portion facing the first end cover, and the control board is disposed on the mounting platform. A wiring groove is provided at the middle end, with one end of the wiring groove connected to the end of the first connecting end and the other end connected to the mounting platform. The rotor assembly is disposed inside the housing assembly and is opposite to the stator assembly.

2. The motor structure according to claim 1, characterized in that: The mounting platform is provided with mounting holes, and the control board is fixed to the mounting holes with screws. The mounting platform is provided with a clearance trough.

3. The motor structure according to claim 1, characterized in that: The first connecting end is provided with a first connecting hole, and there are multiple first connecting holes; the second connecting end is provided with a second connecting hole, and the second connecting hole is located at the axis of the second connecting end.

4. The motor structure according to any one of claims 1 to 3, characterized in that: The housing assembly includes a first end cap, a second end cap, and a housing body. The first connecting end is provided with a first bearing, and the second connecting end is provided with a second bearing. The inner circumference of the first end cap is connected to the first bearing, and the outer circumference is connected to the housing body. The inner circumference of the second end cap is connected to the second bearing, and the outer circumference is connected to the housing body.

5. The motor structure according to claim 4, characterized in that: The first connecting end is provided with a first mounting step, the second connecting end is provided with a second mounting step, the first bearing is provided on the first mounting step, and the second bearing is provided on the second mounting step.

6. The motor structure according to claim 4, characterized in that: The first end cap is provided with a magnetic ring step on the outside of the first bearing, and an induction magnetic ring is provided on the magnetic ring step, which is opposite to the control board.

7. The motor structure according to claim 4, characterized in that: The first end cover is provided with a first mating step, which is used to connect the first bearing. The second end cover is provided with a second mating step, which is used to connect the second bearing.

8. The motor structure according to claim 4, characterized in that: The outer side of the first end cover is provided with a first positioning step, and the outer side of the second end cover is provided with a second positioning step. The first positioning step is used for positioning the first end of the outer shell, and the second positioning step is used for positioning the second end of the outer shell.

9. The motor structure according to claim 4, characterized in that: The outer casing is provided with a first riveting part and a second riveting part at both ends. The first end cover is provided with a first riveting groove. The first riveting part is used to rivet the first riveting groove. The second end cover is provided with a second riveting groove. The second riveting part is used to rivet the second riveting groove.

10. The motor structure according to claim 9, characterized in that: Both the first riveting part and the second riveting part are provided in multiples, and the number of the first riveting groove and the second riveting groove matches the number of the first riveting part and the second riveting part; the groove opening of the first riveting groove is provided with a first arc surface, and the groove opening of the second riveting groove is provided with a second arc surface.

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