Double skewed pole mechanism and motor

Abstract

The utility model relates to the technical field of motors, in particular to a double skewed pole mechanism and a motor, comprising a rotating shaft, a rotor bracket, a first magnetic pole element, a second magnetic pole element, an annular stator winding and a stator coil, the rotating shaft is arranged at the axis of the rotor support, the rotor support comprises an upper end and a lower end, a plurality of first magnetic pole grooves are formed in the periphery of the upper end, an angle a is formed between the axis perpendicular line of the rotating shaft and the first magnetic pole element, and an angle b is formed between the center line of the axis perpendicular line of the rotating shaft and the center line of the second magnetic pole element. The angle a is larger or smaller than the angle b; the annular stator winding is arranged on the periphery of the rotor support, stator skewed slots are formed in the annular stator winding, and the stator coil is arranged on the stator skewed slots and is opposite to the first magnetic pole element and the second magnetic pole element. According to the utility model, more effective power transmission and conversion are realized, so that the motor generates higher output power under the same input power, and the overall energy efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a double-slant-pole mechanism and a motor. Background Art

[0002] A brushless motor is a type of motor also known as a brushless DC motor or electronically controlled speed motor. Compared to traditional brushed DC motors, brushless motors do not require brushes or slip rings for commutation, resulting in higher efficiency, longer lifespan, and lower maintenance requirements. A brushless motor operates by using an electronic controller to switch currents at the right time, thereby driving the motor's rotor. It typically consists of a stator and a rotor. The stator contains several coils that generate a rotating magnetic field through the switching of currents. The rotor, on the other hand, is equipped with permanent magnets or magnets that rotate in response to the rotating magnetic field.

[0003] The rotor structure of a motor typically includes magnetic pole elements, a rotating shaft, and a bracket. The magnetic pole elements are the core of the rotor and are typically composed of magnetic tiles or magnets. During operation, the magnetic pole elements generate a magnetic field that interacts with the stator windings, generating an electromagnetic force that drives the rotor. Existing motor magnetic pole elements are fixed in design, limiting the motor's output power and affecting its overall efficiency. Utility Model Content

[0004] To address these issues, the present invention achieves more efficient power transmission and conversion, enabling the motor to generate greater output power for the same input power, thereby improving overall energy efficiency. Compared to traditional designs, the dual-slant-pole design reduces motor vibration and noise, ensuring smoother and more stable motor operation.

[0005] The technical solution adopted by the present invention is: a double-oblique-pole mechanism, including a rotating shaft, a rotor support, a first magnetic pole element, a second magnetic pole element, an annular stator winding and a stator coil; the rotating shaft is arranged at the axis of the rotor support, the rotor support includes an upper end and a lower end, the outer periphery of the upper end is provided with a plurality of first magnetic pole slots, the outer periphery of the lower end is provided with a plurality of second magnetic pole slots, the first magnetic pole element is arranged on the first magnetic pole slots, the second magnetic pole element is arranged on the second magnetic pole slots, an angle a is formed between the axis perpendicular line of the rotating shaft and the first magnetic pole element, an angle b is formed between the center line of the axis perpendicular line of the rotating shaft and the center line of the second magnetic pole element, and the angle a is greater than or less than the angle b; the annular stator winding is arranged on the outer periphery of the rotor support, the annular stator winding is provided with stator oblique slots, and the stator coil is arranged on the stator oblique slots and opposite to the first magnetic pole element and the second magnetic pole element.

[0006] A further improvement to the above solution is that a fixed fitting hole is provided at the axis center of the rotor bracket, and the rotating shaft is provided with a fixed connection portion, and the fixed connection portion is used for fixed connection to the fixed fitting hole.

[0007] A further improvement to the above solution is that the upper end is provided with a first pin hole, the lower end is provided with a second pin hole, the first pin hole and the second pin hole are coaxially arranged, and a fixed shaft pin connection is provided between the first pin hole and the second pin hole.

[0008] A further improvement to the above solution is that a plurality of weight-reducing grooves are provided on the rotor bracket, and the plurality of weight-reducing grooves are arranged in an annular direction on the rotor bracket.

[0009] A further improvement to the above solution is that a first positioning bar is provided between two adjacent first magnetic pole slots, and the two adjacent first positioning bars are used to fix the end surface of the first magnetic pole element.

[0010] A further improvement to the above solution is that a second positioning bar is provided between two adjacent second magnetic pole slots, and the two adjacent second positioning bars are used to fix the end surface of the second magnetic pole element.

[0011] A further improvement to the above solution is that the first positioning bar and the second positioning bar are staggered with each other.

[0012] A further improvement to the above solution is that the first magnetic pole element is a rotor magnetic shoe, and the outer periphery of the first magnetic pole element is provided with a first arc surface; the second magnetic pole element is a rotor magnetic shoe, and the outer periphery of the second magnetic pole element is provided with a second arc surface.

[0013] A further improvement to the above solution is that the outer diameters of the first arc surface and the second arc surface are the same.

[0014] A further improvement to the above scheme is that the annular stator winding is formed by splicing multiple stator components, and the stator components include a stator frame, an upper end bracket and a lower end bracket. Splicing bosses and splicing grooves are respectively provided on both sides of the stator frame. Adjacent stator components are connected through the splicing bosses and the splicing grooves. The upper end bracket and the lower end bracket are respectively arranged on the upper and lower sides of the stator frame to form a stator skew slot. Inclined platforms are provided on both sides of the stator skew slot, and the inclined platforms are inclined toward the rotor bracket.

[0015] A motor comprises the double-slanted-pole mechanism. The motor comprises a housing, and the annular stator winding is arranged inside the housing.

[0016] The beneficial effects of the utility model are:

[0017] Compared to existing motor pole designs, the present invention adopts a dual-slant-pole design. Specifically, by rationally arranging components such as the rotating shaft, rotor bracket, magnetic pole elements, and magnetic pole slots, the magnetic force transmission is made more stable and efficient. By utilizing the difference between angles a and b, force transmission in different directions can be achieved, thereby improving transmission efficiency. By adjusting the magnitude relationship between angles a and b, the force transmission direction can be precisely controlled, achieving precise control of the magnetic transmission process. This precise control helps to adapt to diverse work needs and improves the flexibility and applicability of the equipment. Because the dual-slant-pole design can improve transmission efficiency, it can reduce energy consumption in actual operation and reduce the noise level during mechanical transmission, improving the overall working environment and efficiency. The dual-slant-pole design adopts a relatively simplified structure, reducing friction and wear between components, improving overall stability and reliability, and reducing maintenance costs and failure rates. Through rational structural design and magnetic force transmission principles, this embodiment achieves multiple technical benefits, including improved transmission efficiency, precise control of force transmission direction, reduced energy consumption and noise, and enhanced structural stability, and has broad application prospects and market potential. The annular stator winding increases the motor's magnetic flux and improves efficiency. The stator's skewed slots reduce vibration and noise, enhancing stability. The stator coils, aligned with the first and second magnetic pole elements, increase the motor's output power and torque, improving performance.

[0018] The motor using the above-mentioned dual-slant-pole mechanism can achieve more efficient power transmission and conversion, so that the motor can generate greater output power under the same input power, thereby improving the overall energy efficiency. Compared with the traditional design, the dual-slant-pole design can reduce the vibration and noise of the motor and ensure that the motor runs more smoothly and stably. The dual-slant-pole design helps to improve the torque density of the motor, that is, to achieve greater output torque at the same size, which is especially important for space-constrained application scenarios. The dual-slant-pole design can provide more flexible and precise control, allowing the motor to more accurately adjust the speed and output torque under different load conditions to adapt to diverse work requirements. The dual-slant-pole design can reduce the size and weight of the motor while maintaining the same power output, which is suitable for scenarios with limited space and weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the three-dimensional structure of the double-slant-pole mechanism of the utility model;

[0020] Figure 2 It is a three-dimensional structural diagram of the double-slant-pole mechanism of the utility model;

[0021] Figure 3 for Figure 2 Exploded diagram of part of the structure of the dual-slant-pole mechanism;

[0022] Figure 4 for Figure 2 A schematic diagram of the main view of the structure of the double-slant-pole mechanism;

[0023] Figure 5 for Figure 4 Cross-sectional view of AA;

[0024] Figure 6 for Figure 4 Schematic diagram of the main structure of the double-slant-pole mechanism;

[0025] Figure 7 for Figure 1 Schematic diagram of the main structure of the annular stator winding of the double-slanted-pole mechanism;

[0026] Figure 8 This is a schematic diagram of the three-dimensional structure of the motor of the utility model;

[0027] Figure 9 for Figure 8 Main view of the motor;

[0028] Figure 10 for Figure 9 Cross-sectional view of AA in the figure.

[0029] Explanation of the accompanying drawings: rotating shaft 1, fixed connection part 11, rotor bracket 2, upper end part 21, first magnetic pole slot 211, first pin hole 212, first positioning block 213, lower end part 22, second magnetic pole slot 221, second pin hole 222, second positioning block 223, fixed fitting hole 23, fixed shaft pin 24, weight reduction groove 25, first magnetic pole element 3, first arc surface 31, second magnetic pole element 4, second arc surface 41, annular stator winding 5, stator inclined slot 51, inclined platform 511, stator frame 52, splicing boss 521, splicing groove 522, upper end bracket 53, lower end bracket 54, stator coil 6, housing 7. DETAILED DESCRIPTION

[0030] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to facilitate a more thorough and comprehensive understanding of the disclosure of the present invention.

[0031] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are only for the purpose of describing specific embodiments and are not intended to limit this invention. Figures 1 to 10As shown, in one embodiment of the utility model, a dual-oblique pole mechanism is involved, including a rotating shaft 1, a rotor bracket 2, a first magnetic pole element 3, a second magnetic pole element 4, an annular stator winding 5 and a stator coil 6; the rotating shaft 1 is arranged at the axis of the rotor bracket 2, and the rotor bracket 2 includes an upper end 21 and a lower end 22, a plurality of first magnetic pole slots 211 are arranged on the outer periphery of the upper end 21, and a plurality of second magnetic pole slots 221 are arranged on the outer periphery of the lower end 22, the first magnetic pole element 3 is arranged on the first magnetic pole slot 211, and the second magnetic pole element 4 is arranged on the second magnetic pole slot 221, an angle a is formed between the axis perpendicular line of the rotating shaft 1 and the first magnetic pole element 3, and an angle b is formed between the center line of the axis perpendicular line of the rotating shaft 1 and the center line of the second magnetic pole element 4, and the angle a is greater than or less than the angle b. The annular stator winding 5 is arranged on the outer periphery of the rotor support 2. The annular stator winding 5 is provided with stator skew slots 51. The stator coil 6 is arranged in the stator skew slots 51 and faces the first magnetic pole element 3 and the second magnetic pole element 4. This embodiment adopts a dual-slant-pole design. Specifically, by rationally arranging components such as the rotating shaft 1, the rotor support 2, the magnetic pole elements, and the magnetic pole slots, the magnetic force transmission is made more stable and efficient. The difference between angles a and b can be utilized to achieve force transmission in different directions, thereby improving transmission efficiency. By adjusting the magnitude relationship between angles a and b, the force transmission direction can be precisely controlled, achieving precise control of the magnetic force transmission process. This precise control helps adapt to diverse work needs and enhances the flexibility and applicability of the equipment. Because the dual-slant-pole design improves transmission efficiency, it can reduce energy consumption in actual operation and lower the noise level during mechanical transmission, improving the overall working environment and efficiency. The dual-slant-pole design adopts a relatively simplified structure, reducing friction and wear between components, improving overall stability and reliability, and reducing maintenance costs and failure rates. Through reasonable structural design and magnetic force transmission principles, this embodiment achieves multiple technical effects, including improved transmission efficiency, precise control of force transmission direction, reduced energy consumption and noise, and improved structural stability. It has broad application prospects and market potential. The design of the dual-pole mechanism can optimize the motor's cogging torque, significantly reduce torque pulsation, electromagnetic vibration, and noise, and provide excellent NVH (noise, vibration, and harshness). The provision of the annular stator winding 5 can increase the motor's magnetic flux and improve its efficiency. The design of the stator slots 51 can reduce the vibration and noise of the motor and enhance the stability of the motor. The stator coil 6 is opposite to the first pole element and the second pole element, which can increase the output power and torque of the motor and improve the performance of the motor.

[0033] A fixing hole 23 is provided at the axis of the rotor support 2, and the rotating shaft 1 is provided with a fixing connection portion 11, which is used to securely connect to the fixing hole 23. In this embodiment, the design of the fixing connection portion 11 and the fixing hole 23 enhances the stability of the connection between the rotor support 2 and the rotating shaft 1, reduces the risk of loosening due to vibration or external forces, and thus improves the operational stability of the entire mechanism. The stable connection structure helps reduce relative displacement between components, thereby improving the precision and reliability of the transmission device and enabling the dual-slant-pole mechanism to more accurately transmit and control force.

[0034] The upper end 21 is provided with a first pin hole 212, and the lower end 22 is provided with a second pin hole 222. The first pin hole 212 and the second pin hole 222 are coaxially arranged, and a fixed pin 24 is provided between the first and second pin holes 212 and 222. In this embodiment, the upper end 21 and the lower end 22 are two independent components. Connecting the pin holes of the upper and lower ends 22 via the fixed pin 24 enhances the overall structural stability of the rotor support 2, reduces deformation or loosening due to stress, and improves the operational stability of the entire mechanism. The coaxial arrangement of the pin holes and the connection via the fixed pin 24 ensures that the positions and axis of the upper and lower ends 22 are aligned, thereby improving the assembly precision of the mechanism, facilitating more accurate alignment of the magnetic pole elements and the rotating shaft 1, and enhancing the accuracy and reliability of the transmission device. It also facilitates the fixing of the first and second magnetic pole slots 211 and 221 during offset installation, maintaining the structure in a fixed state after installation. The stable connection structure helps reduce vibration and noise caused by relative displacement of components, improving overall operational smoothness and the working environment.

[0035] The rotor bracket 2 is provided with a plurality of weight-reducing grooves 25, and the plurality of weight-reducing grooves 25 are arranged in a circumferential direction on the rotor bracket 2. In this embodiment, by providing the weight-reducing grooves 25 on the rotor bracket 2, the overall weight of the rotor bracket 2 can be effectively reduced, thereby reducing the inertial load of the mechanism and improving the dynamic response speed and operating efficiency of the mechanism. The design of the weight-reducing grooves 25 helps to reduce the vibration and resonance of the rotor bracket 2 itself, thereby reducing the vibration and noise levels generated by the mechanism during operation and improving the overall working environment. The provision of the weight-reducing grooves 25 can change the center of mass distribution of the rotor bracket 2, making the mechanism more balanced and stable, reducing the eccentricity and imbalance problems caused by uneven mass distribution, and improving the overall stability and reliability.

[0036] A first positioning bar 213 is provided between two adjacent first magnetic pole slots 211, and is used to secure the end face of the first magnetic pole element 3. Specifically, a second positioning bar 223 is provided between two adjacent second magnetic pole slots 221, and is used to secure the end face of the second magnetic pole element 4. The first positioning bar 213 and the second positioning bar 223 are staggered. In this embodiment, by providing the first positioning bar 213 and the second positioning bar 223, the end faces of the first magnetic pole element 3 and the second magnetic pole element 4 can be effectively fixed and positioned, improving the installation accuracy and stability of the magnetic pole elements, and facilitating the uniformity of the magnetic field and transmission accuracy. The precise positioning bar design helps reduce magnetic field distortion and leakage, ensuring the correct position of the magnetic pole elements on the rotor support 2, thereby improving the magnetic field control accuracy and stability of the entire mechanism. The provision of the positioning bar helps reduce the risk of displacement and loosening of the magnetic pole elements during operation. The staggered arrangement of the positioning bars helps to balance the effect of the magnetic force, reduces the unbalanced force on the rotor bracket 2 caused by the uneven magnetic field, and optimizes the dynamic balancing performance of the mechanism.

[0037] The first magnetic pole element 3 is a rotor magnetic shoe, and a first arc surface 31 is provided on the outer periphery of the first magnetic pole element 3; the second magnetic pole element 4 is a rotor magnetic shoe, and a second arc surface 41 is provided on the outer periphery of the second magnetic pole element 4. Specifically, the outer diameter of the first arc surface 31 and the second arc surface 41 are the same. In this embodiment, the outer peripheries of the first magnetic pole element 3 and the second magnetic pole element 4 are provided with arc surfaces of the same size. This design is conducive to ensuring the uniformity and symmetry of the magnetic field and improving the accuracy of magnetic field control. Since the outer peripheries of the first magnetic pole element 3 and the second magnetic pole element 4 are provided with arc surfaces of the same size, the magnetic resistance can be reduced, the magnetic circuit can be improved, and the transmission efficiency can be improved. The arc surface design helps to reduce the unevenness of the magnetic field, reduce the loss of magnetic energy, and improve the energy utilization rate of the system.

[0038] See Figure 7As shown, the annular stator winding 5 is formed by splicing together multiple stator components, which include a stator frame 52, an upper bracket 53, and a lower bracket 54. Splicing bosses 521 and splicing grooves 522 are respectively provided on both sides of the stator frame 52. Adjacent stator components are connected by splicing bosses 521 and splicing grooves 522. The upper bracket 53 and the lower bracket 54 are respectively provided on the upper and lower sides of the stator frame 52 to form a stator skew 51. Slopes 511 are provided on both sides of the stator skew 51, and the slopes 511 are inclined toward the rotor bracket. In this embodiment, by splitting the annular stator winding 5 into multiple stator components and adopting a connection method of splicing bosses 521 and splicing grooves 522, the overall winding structure is made more flexible and easy to expand or reduce according to actual needs. This design can adapt to motors of different sizes and power requirements, improving the versatility and flexibility of production. The stator frame 52 is provided with a splicing boss 521 and a splicing groove 522 on both sides. The adjacent stator components are connected by this structure, which simplifies the manufacturing process, effectively improves the assembly efficiency and reduces the production cost.

[0039] See Figures 1 to 10 As shown, a motor includes the dual-pole mechanism described above, and the motor includes a housing 7, and the annular stator winding 5 is arranged in the housing 7. The motor using the above-mentioned dual-pole mechanism can achieve more efficient power transmission and conversion, so that the motor can generate greater output power under the same input power, thereby improving the overall energy efficiency. Compared with the traditional design, the dual-pole design can reduce the vibration and noise of the motor and ensure that the motor runs more smoothly and stably. The dual-pole design helps to improve the torque density of the motor, that is, to achieve greater output torque under the same size, which is particularly important for application scenarios with limited space. The dual-pole design can provide more flexible and precise control, so that the motor can more accurately adjust the speed and output torque under different load conditions to adapt to diverse work requirements. The dual-pole design can reduce the size and weight of the motor while maintaining the same power output, which is suitable for scenarios with limited space and weight.

[0040] The above embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the concept of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A dual-pole oblique mechanism, characterized in that: The invention comprises a rotating shaft, a rotor support, a first magnetic pole element, a second magnetic pole element, an annular stator winding and a stator coil; the rotating shaft is arranged at the axis center of the rotor support, the rotor support comprises an upper end and a lower end, a plurality of first magnetic pole slots are arranged on the outer periphery of the upper end, a plurality of second magnetic pole slots are arranged on the outer periphery of the lower end, the first magnetic pole element is arranged on the first magnetic pole slot, the second magnetic pole element is arranged on the second magnetic pole slot, an angle a is formed between the axis perpendicular line of the rotating shaft and the first magnetic pole element, an angle b is formed between the center line of the axis perpendicular line of the rotating shaft and the center line of the second magnetic pole element, and the angle a is greater than or less than the angle b; the annular stator winding is arranged on the outer periphery of the rotor support, the annular stator winding is provided with stator skew slots, the stator coil is arranged on the stator skew slots and is opposite to the first magnetic pole element and the second magnetic pole element.

2. The dual-pole oblique mechanism according to claim 1, characterized in that: A fixing fitting hole is provided at the axis center of the rotor bracket, and a fixing connection portion is provided on the rotating shaft, and the fixing connection portion is used for fixing and connecting the fixing fitting hole.

3. The dual-pole oblique mechanism according to claim 1, characterized in that: The upper end portion is provided with a first pin hole, and the lower end portion is provided with a second pin hole. The first pin hole and the second pin hole are coaxially arranged, and a fixed shaft pin is provided between the first pin hole and the second pin hole for connection.

4. The dual-pole oblique mechanism according to claim 1, wherein: The rotor bracket is provided with a plurality of weight-reducing grooves, and the plurality of weight-reducing grooves are arranged in a circumferential direction on the rotor bracket.

5. The dual-pole oblique mechanism according to claim 1, characterized in that: A first positioning bar is arranged between two adjacent first magnetic pole slots, and the two adjacent first positioning bars are used to fix the end surface of the first magnetic pole element.

6. The dual-pole oblique mechanism according to claim 5, characterized in that: A second positioning bar is arranged between two adjacent second magnetic pole slots, and the two adjacent second positioning bars are used to fix the end surface of the second magnetic pole element; the first positioning bar and the second positioning bar are arranged to be staggered with each other.

7. The dual-pole oblique mechanism according to claim 1, characterized in that: The first magnetic pole element is a rotor magnetic shoe, and a first arc surface is provided on the outer periphery of the first magnetic pole element; the second magnetic pole element is a rotor magnetic shoe, and a second arc surface is provided on the outer periphery of the second magnetic pole element.

8. The dual-pole oblique mechanism according to claim 7, characterized in that: The outer diameters of the first arc surface and the second arc surface are the same.

9. The dual-pole oblique mechanism according to claim 1, characterized in that: The annular stator winding is formed by splicing multiple stator components. The stator components include a stator frame, an upper bracket and a lower bracket. Splicing bosses and splicing grooves are respectively provided on both sides of the stator frame. Adjacent stator components are connected by splicing bosses and splicing grooves. The upper bracket and the lower bracket are respectively provided on the upper and lower sides of the stator frame to form a stator skew slot. Inclined platforms are provided on both sides of the stator skew slot, and the inclined platforms are inclined toward the rotor bracket.

10. A motor, characterized in that: The double-slanted-pole mechanism comprises the double-slanted-pole mechanism according to any one of claims 1 to 9, wherein the motor comprises a housing, and the annular stator winding is arranged inside the housing.

Images