Motor with detachable stator structure

Abstract

The utility model relates to the technical field of motor structures, in particular to a motor with a detachable stator structure, which comprises a base, a rotating shaft assembly, a stator dismounting part, a stator assembly and a rotor shell, a rotating placement cavity is arranged on the inner circumference of the base, a stator placement step is arranged on the outer circumference of the base, and a stator dismounting step is arranged on one side of the stator placement step. The stator assembly comprises a stator assembly and a stator mounting step, the stator mounting step is arranged in the stator assembly, the stator dismounting part is arranged on the stator mounting step, a stator fixing groove is formed in the periphery of the stator dismounting part and matched with the stator mounting step to fix the stator assembly, one end of the rotating shaft assembly is arranged in the rotating mounting cavity, and the other end of the rotating shaft assembly is connected with the rotor shell. A rotor element is arranged on the inner periphery of the rotor shell and is opposite to the stator assembly. According to the utility model, the stator can be replaced and detached, the stator assembly can be directly replaced when the stator is bad, and the stator assembly can also be directly replaced when the performance of the rotor is bad or other structures break down.

Description

Technical Field

[0001] This utility model relates to the field of motor structure technology, and in particular to a motor with a detachable stator 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] The stator is the stationary part of the motor and is not disassembled after the existing motor is assembled. When the stator or other components fail or are damaged, the entire motor needs to be replaced, resulting in high costs. Therefore, a new design is needed for the existing motor structure. Utility Model Content

[0004] To solve the above problems, this utility model allows for stator replacement and disassembly. If the stator is faulty, the stator assembly can be directly replaced. Similarly, if the rotor performance is poor or other structural faults occur, the motor with a detachable stator structure can also be directly replaced.

[0005] The technical solution adopted by this utility model is: a motor with a detachable stator structure, including a base, a shaft assembly, a stator disassembly / assembly component, a stator assembly, and a rotor housing. The base has a rotating cavity on its inner circumference and a stator mounting step on its outer circumference. A stator disassembly / assembly step is provided on one side of the stator mounting step. The stator disassembly / assembly component is disposed on the stator disassembly / assembly step. A stator fixing groove is provided on the outer circumference of the stator disassembly / assembly component. The stator fixing groove cooperates with the stator mounting step to fix the stator assembly. One end of the shaft assembly is disposed in the rotating cavity and the other end is connected to the rotor housing. A rotor element is disposed on the inner circumference of the rotor housing. The rotor element is opposite to the stator assembly.

[0006] A further improvement to the above scheme is that the base is provided with a sensing mounting cavity, one end of which is connected to a rotating mounting cavity, and a sensing component is provided inside the sensing mounting cavity for sensing the rotation angle of the motor.

[0007] A further improvement to the above solution is that the sensing component includes a rotating bracket, a rotating sensing element, a fixed bracket, and a sensing PCB board. One end of the rotating bracket is connected to the rotating shaft assembly. The rotating sensing element is disposed on the rotating bracket. The fixed bracket is disposed on the sensing mounting cavity. The sensing PCB board is disposed on the fixed bracket. An angle sensor is disposed on the sensing PCB board. The angle sensor is used to cooperate with the rotating sensing element.

[0008] A further improvement to the above scheme is that the rotation sensing element is a magnetic element and the angle sensor is a magnetic induction sensor.

[0009] A further improvement to the above scheme is that an installation part is provided at one end of the sensing placement cavity, the installation part is provided with an installation platform, the installation platform is provided with an installation hole, a wiring groove is provided on one side of the installation part, and one end of the wiring groove is connected to the sensing placement cavity.

[0010] A further improvement to the above scheme is that the rotating shaft assembly includes a rotating shaft and a connecting bearing, the connecting bearing is disposed in the rotating mounting cavity, one end of the rotating shaft is disposed on the connecting bearing, and the other end is disposed on a mounting platform, and the rotor housing is disposed on the mounting platform.

[0011] A further improvement to the above solution is that the stator assembly / disassembly component is provided with a countersunk hole, which is detachably mounted on the stator assembly / disassembly step by means of a screw.

[0012] A further improvement to the above scheme is that the stator fixing groove is flush with the outer periphery of the stator mounting step to fix the inner diameter of the stator assembly.

[0013] A further improvement to the above scheme is that the stator assembly includes a stator frame and a coil, the inner diameter of the stator frame is set on the stator fixing groove, the stator frame is provided with multiple winding arms, and the coil is set on the winding arms.

[0014] A further improvement to the above scheme is that the rotor housing includes an end cover and an annular housing, the annular housing is disposed on the end cover, one end of the end cover is connected to the rotating shaft, and the rotor element is composed of multiple magnetic tiles, which are arranged in a ring array on the inner circumference of the annular housing and are opposite to the stator assembly.

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

[0016] Compared to existing motor stator structures, this invention achieves a modular design for the motor structure through a rotating mounting cavity on the inner circumference of the base and stator mounting steps on the outer circumference. This design not only facilitates motor assembly and maintenance but also significantly improves production efficiency and reduces manufacturing costs. The cooperation between the stator mounting steps and the stator disassembly / assembly steps further enables rapid disassembly and assembly of the stator assembly, making motor repair and upgrades more convenient. Secondly, the stator fixing groove on the stator disassembly / assembly components fits tightly with the stator mounting steps, ensuring the stability and reliability of the stator assembly during motor operation. This fixing method not only effectively prevents the stator assembly from loosening or shifting during high-speed rotation but also further improves the motor's operating efficiency and service life. Furthermore, the connection design between the shaft assembly and the rotor housing makes the power transmission of the motor smoother and reduces energy loss. At the same time, the relative layout of the rotor elements and stator assembly on the inner circumference of the rotor housing optimizes the electromagnetic field distribution of the motor and improves its electromagnetic performance. This invention allows for stator replacement and disassembly. In cases of stator malfunction, such as poor performance, leakage, or damaged wires, the stator assembly can be directly replaced. Similarly, in cases of rotor malfunction or other structural failures, the rotor can also be directly replaced.

[0017] In various application scenarios, this invention can be used for motor testing. During testing or maintenance, operators can easily disassemble the stator assembly simply by releasing the lock between the stator fixing slot and the stator mounting step, eliminating the need for cumbersome disassembly procedures. Similarly, reinstallation only requires accurately placing the stator assembly on the stator mounting step and securing it with the stator disassembly / reassembly parts; the entire process is efficient and quick. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the motor with a detachable stator structure according to this utility model;

[0019] Figure 2 for Figure 1 A top view of a motor with a detachable stator structure;

[0020] Figure 3 for Figure 2 Sectional view of AA;

[0021] Figure 4 for Figure 1 An exploded view of a motor with a detachable stator structure.

[0022] Explanation of reference numerals in the attached drawings: Base 1, Rotary mounting cavity 11, Mounting part 111, Mounting platform 112, Mounting hole 113, Wiring groove 114, Stator mounting step 12, Stator disassembly step 13, Induction mounting cavity 14, Rotating shaft assembly 2, Rotating shaft 21, Mounting platform 211, Connecting bearing 22, Stator disassembly / assembly part 3, Stator fixing groove 31, Stator assembly 4, Stator frame 41, Winding arm 411, Coil 42, Rotor housing 5, End cover 51, Annular housing 52, Induction assembly 6, Rotating bracket 61, Rotating sensing element 62, Fixed bracket 63, Induction PCB board 64, Rotor element 7. 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 1-4As shown in one embodiment of this utility model, a motor with a detachable stator structure includes a base 1, a shaft assembly 2, a stator disassembly / assembly component 3, a stator assembly 4, and a rotor housing 5. The base 1 has a rotating mounting cavity 11 on its inner circumference and a stator mounting step 12 on its outer circumference. A stator disassembly / assembly step 13 is provided on one side of the stator mounting step 12. The stator disassembly / assembly component 3 is disposed on the stator disassembly / assembly step 13, and a stator fixing groove 31 is provided on its outer circumference. The stator fixing groove 31 cooperates with the stator mounting step 12 to fix the stator assembly 4. One end of the shaft assembly 2 is disposed in the rotating mounting cavity 11, and the other end is connected to the rotor housing 5. A rotor element 7 is disposed on the inner circumference of the rotor housing 5, and the rotor element 7 is opposite to the stator assembly 4. In this embodiment, the modular design of the motor structure is achieved through the rotating mounting cavity 11 on the inner circumference of the base 1 and the stator mounting step 12 on its outer circumference. This design not only facilitates the assembly and maintenance of the motor but also significantly improves production efficiency and reduces manufacturing costs. The cooperation between the stator mounting step 12 and the stator disassembly step 13 makes it possible to quickly disassemble and assemble the stator assembly 4, making motor maintenance and upgrades more convenient. Secondly, the stator fixing groove 31 on the stator disassembly / assembly component 3 fits tightly with the stator mounting step 12, ensuring the stability and reliability of the stator assembly 4 during motor operation. This fixing method not only effectively prevents the stator assembly 4 from loosening or shifting during high-speed rotation, but also further improves the motor's operating efficiency and service life. Furthermore, the connection design between the shaft assembly 2 and the rotor housing 5 makes the power transmission of the motor smoother and reduces energy loss. At the same time, the relative layout of the rotor elements 7 on the inner circumference of the rotor housing 5 and the stator assembly 4 optimizes the electromagnetic field distribution of the motor and improves its electromagnetic performance.

[0026] In different application scenarios, this embodiment is used for testing. During testing or maintenance, operators can easily disassemble the stator assembly 4 simply by releasing the lock between the stator fixing slot 31 and the stator mounting step 12, without the need for a cumbersome disassembly process. Similarly, during reinstallation, it is only necessary to accurately place the stator assembly 4 on the stator mounting step 12 and fix it with the stator disassembly / removal parts 3. The whole process is efficient and quick.

[0027] The base 1 is provided with a sensing mounting cavity 14, one end of which is connected to a rotating mounting cavity 11. A sensing component 6 is disposed within the sensing mounting cavity 14, and the sensing component 6 is used to sense the rotation angle of the motor. Specifically, the sensing component 6 includes a rotating bracket 61, a rotation sensing element 62, a fixed bracket 63, and a sensing PCB board 64. One end of the rotating bracket 61 is connected to the rotating shaft assembly 2. The rotation sensing element 62 is disposed on the rotating bracket 61. The fixed bracket 63 is disposed on the sensing mounting cavity 14. The sensing PCB board 64 is disposed on the fixed bracket 63. An angle sensor is disposed on the sensing PCB board 64, and the angle sensor is used to cooperate with the rotation sensing element 62. The rotation sensing element 62 is a magnetic element, and the angle sensor is a magnetic induction sensor. In this embodiment, the connection design between the sensing mounting cavity 14 and the rotating mounting cavity 11 within the base 1 ensures that the sensing component 6 can be accurately and stably integrated into the motor system without occupying excessive additional space, maintaining the compactness and efficiency of the motor structure. The composition of the sensing component 6, particularly the direct connection between the rotating bracket 61 and the rotating shaft assembly 2, and the application of the magnetic element as the rotation sensing element 62, greatly improves the sensitivity and accuracy of angle detection. The combined use of the magnetic sensor and the magnetic element enables real-time, non-contact capture of rotation angle information during motor rotation, avoiding the wear problems of traditional mechanical sensors and extending the motor's lifespan. Furthermore, the stable installation of the fixed bracket 63 and the sensing PCB board 64 within the sensing mounting cavity 14 not only ensures the stable operation of the angle sensor but also facilitates later maintenance and replacement, conforming to the modular design concept of a detachable stator structure motor. The angle sensor integrated on the sensing PCB board 64 provides reliable data support for the closed-loop control of the motor with its high-precision measurement capabilities, contributing to more accurate motor position and speed control and improving the overall system's dynamic response performance and operating efficiency.

[0028] A mounting portion 111 is provided at one end of the induction mounting cavity 14. The mounting portion 111 is provided with a mounting platform 112, and the mounting platform 112 is provided with mounting holes 113. A wiring groove 114 is provided on one side of the mounting portion 111, and one end of the wiring groove 114 is connected to the induction mounting cavity 14. In this embodiment, the mounting portion 111 allows for a stable installation of the structure, ensuring the high efficiency and stability of the motor operation. In addition, the ingenious layout of the wiring groove 114 not only effectively manages the internal wiring of the motor, avoiding potential safety hazards caused by messy wiring, but also greatly reduces the interference of wiring on the motor's operating performance.

[0029] The rotating shaft assembly 2 includes a rotating shaft 21 and a connecting bearing 22. The connecting bearing 22 is disposed within a rotating mounting cavity 11. One end of the rotating shaft 21 is mounted on the connecting bearing 22, and the other end is provided with a mounting platform 211. The rotor housing 5 is mounted on the mounting platform 211. In this embodiment, the rotating shaft assembly 2, through the precise design of the rotating shaft 21 and the connecting bearing 22, ensures the stability and accuracy of the motor during high-speed rotation, effectively reducing losses caused by vibration and friction. The connecting bearing 22 is cleverly placed within the rotating mounting cavity 11, which not only optimizes the spatial layout but also facilitates later maintenance and replacement, demonstrating the flexibility and practicality of the design. One end of the rotating shaft 21 is securely mounted on the connecting bearing 22, while the other end supports the mounting platform 211. This design not only enhances the load-bearing capacity of the rotating shaft but also provides a solid foundation for the stable installation of the rotor housing 5.

[0030] The stator assembly 3 is provided with mounting countersunk holes, which are detachably mounted on the stator mounting step 13 using screws. In this embodiment, when the stator assembly 4 needs maintenance or replacement, the operator can quickly complete the task by removing the screws, without disassembling the entire motor, thus greatly saving maintenance time and costs. Secondly, this detachable design enhances the flexibility of the motor. It allows for the rapid replacement of stator assemblies 4 of different specifications or performance levels according to specific application scenarios and needs, to meet diverse motor operation requirements. Furthermore, the precise screw connection ensures a stable connection between the stator assembly 3 and the stator mounting step 13, effectively preventing loosening during motor operation, while also facilitating disassembly and improving the motor's operational stability and safety.

[0031] The stator fixing groove 31 is flush with the outer periphery of the stator mounting step 12 to fix the inner diameter of the stator assembly 4. In this embodiment, this flush design ensures the precise fixing of the inner diameter of the stator assembly 4, effectively improving the overall stability and operating accuracy of the motor. When the motor is running at high speed, the stator assembly 4 can remain stable and is not prone to displacement or shaking, thereby extending the service life of the motor. Secondly, this design simplifies the disassembly and assembly process of the stator assembly 4. Operators can more easily place the stator assembly 4 in place without performing complex adjustments or calibrations. This not only improves assembly efficiency but also reduces the risk of motor failure due to improper operation. In addition, the flushness between the stator fixing groove 31 and the outer periphery of the stator mounting step 12 also helps to optimize the heat dissipation performance of the motor. The flush design allows the cooling medium to flow more evenly through the stator assembly 4, effectively reducing the operating temperature of the motor and improving the thermal stability and reliability of the motor.

[0032] The stator assembly 4 includes a stator frame 41 and coils 42. The inner diameter of the stator frame 41 is set on the stator fixing slot 31, and the stator frame 41 is provided with multiple winding arms 411. The coils 42 are disposed on the winding arms 411. In this embodiment, the inner diameter of the stator frame 41 is precisely set on the stator fixing slot 31, ensuring a stable assembly of the stator assembly 4 and the motor housing, and improving the overall stability and operational reliability of the motor. This design not only simplifies the assembly process but also effectively reduces the failure rate caused by improper assembly. Secondly, the multiple winding arms 411 provided on the stator frame 41 provide strong support for the uniform distribution of the coils 42. The precise arrangement of the coils 42 on the winding arms 411 optimizes the distribution of the electromagnetic field, thereby improving the efficiency and performance of the motor. This structure enables the motor to generate stronger power output during operation while reducing energy loss.

[0033] The rotor housing 5 includes an end cover 51 and an annular housing 52. The annular housing 52 is disposed on the end cover 51, and one end of the end cover 51 is connected to the rotating shaft 21. The rotor element 7 is composed of multiple magnetic tiles arranged in a ring array on the inner circumference of the annular housing 52, opposite to the stator assembly 4. In this embodiment, the rotor housing 5 is composed of the end cover 51 and the annular housing 52. This design not only enhances the structural strength of the rotor but also optimizes its assembly convenience. The direct connection between the end cover 51 and the rotating shaft 21 ensures the high efficiency and stability of power transmission and reduces energy loss during transmission. The multiple magnetic tiles arranged in a ring array on the inner circumference of the annular housing 52 form a precise alignment with the stator assembly 4. This layout greatly improves the uniformity of the magnetic field distribution and the electromagnetic conversion efficiency. The ring array design of the magnetic tiles also helps to reduce magnetic resistance, thereby improving the overall performance of the motor.

[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 with a detachable stator structure, characterized in that: The system includes a base, a rotating shaft assembly, a stator assembly / disassembly component, a stator assembly, and a rotor housing. The base has a rotating cavity on its inner circumference and a stator mounting step on its outer circumference. A stator assembly / disassembly step is provided on one side of the stator mounting step. The stator assembly / disassembly component is disposed on the stator assembly / disassembly step. A stator fixing groove is provided on the outer circumference of the stator assembly / disassembly component. The stator fixing groove cooperates with the stator mounting step to fix the stator assembly. One end of the rotating shaft assembly is disposed in the rotating cavity, and the other end is connected to the rotor housing. A rotor element is disposed on the inner circumference of the rotor housing, and the rotor element is opposite to the stator assembly.

2. The motor with a detachable stator structure according to claim 1, characterized in that: The base is provided with a sensing mounting cavity, one end of which is connected to a rotating mounting cavity. A sensing component is provided inside the sensing mounting cavity, which is used to sense the rotation angle of the motor.

3. The motor with a detachable stator structure according to claim 2, characterized in that: The sensing assembly includes a rotating bracket, a rotating sensing element, a fixed bracket, and a sensing PCB board. One end of the rotating bracket is connected to the rotating shaft assembly. The rotating sensing element is mounted on the rotating bracket. The fixed bracket is mounted on the sensing mounting cavity. The sensing PCB board is mounted on the fixed bracket. An angle sensor is mounted on the sensing PCB board to cooperate with the rotating sensing element.

4. The motor with a detachable stator structure according to claim 3, characterized in that: The rotation sensing element is a magnetic element, and the angle sensor is a magnetic induction sensor.

5. The motor with a detachable stator structure according to claim 2, characterized in that: One end of the sensing mounting cavity is provided with a mounting part, the mounting part is provided with a mounting platform, the mounting platform is provided with a mounting hole, and a wiring groove is provided on one side of the mounting part, one end of the wiring groove is connected to the sensing mounting cavity.

6. The motor with a detachable stator structure according to claim 1, characterized in that: The rotating shaft assembly includes a rotating shaft and a connecting bearing. The connecting bearing is disposed in a rotating mounting cavity. One end of the rotating shaft is disposed on the connecting bearing, and the other end is disposed on a mounting platform. The rotor housing is disposed on the mounting platform.

7. The motor with a detachable stator structure according to claim 1, characterized in that: The stator assembly / disassembly component is provided with mounting countersunk holes, which are detachably mounted on the stator assembly / disassembly step by screws.

8. The motor with a detachable stator structure according to claim 1, characterized in that: The stator fixing groove is flush with the outer periphery of the stator mounting step to fix the inner diameter of the stator assembly.

9. The motor with a detachable stator structure according to claim 1, characterized in that: The stator assembly includes a stator frame and a coil. The inner diameter of the stator frame is set on a stator fixing slot. The stator frame is provided with multiple winding arms, and the coil is set on the winding arms.

10. The motor with a detachable stator structure according to claim 1, characterized in that: The rotor housing includes an end cover and an annular housing. The annular housing is disposed on the end cover. One end of the end cover is connected to the rotating shaft. The rotor element is composed of multiple magnetic tiles, which are arranged in a ring array on the inner circumference of the annular housing and are opposite to the stator assembly.

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