Permanent magnet motor and eddy current fusion type shock absorber

Abstract

The invention relates to a permanent magnet motor and eddy current integrated shock absorber. The permanent magnet motor and eddy current integrated shock absorber comprises a permanent magnet motor part, an eddy current damping part, an encoder and a driver, the permanent magnet motor part comprises a casing, a transmission shaft, a permanent magnet motor stator, a rotor magnet yoke, a permanent magnet motor excitation winding and magnetic steel. The eddy current damping part comprises an eddy current damping stator, an eddy current damping rotor disc, an eddy current damping retainer, an eddy current damping excitation coil and an eddy current damping magnetic pole. The encoder is arranged on the machine shell, is in communication connection with the driver and is used for obtaining a rotation signal of the transmission shaft and transmitting the rotation signal to the driver. The driver is used for adjusting the excitation current of the permanent magnet motor excitation winding and the eddy current damping excitation coil according to the rotation signal of the transmission shaft. Compared with a permanent magnet motor type shock absorber, the shock absorber has the advantages that the damping torque is increased under the same size space, so that the shock absorber can adapt to more different road conditions, meanwhile, the situation of shock absorption failure can be reduced, and the life of personnel and the safety of vehicles can be guaranteed.

Description

Technical Field

[0001] This invention relates to the technical field of vibration dampers, and in particular to a vibration damper that combines a permanent magnet motor with an eddy current. Background Technology

[0002] The vibration damping performance of heavy-duty vehicles is a crucial factor determining ride comfort, smoothness, and maneuverability. Different road conditions result in varying vertical accelerations. Under adverse road conditions, high-speed vehicle travel can cause vertical accelerations exceeding the limits of human endurance. Therefore, vibration damping systems have a significant impact on passenger safety, the reliability of onboard equipment, vehicle speed, and vehicle lifespan.

[0003] In recent years, permanent magnet linear motor vibration dampers and permanent magnet rotary motor vibration dampers have become the development trend of vehicle vibration reduction technology. Compared with traditional hydraulic and air vibration dampers, electromagnetic vibration dampers have advantages such as short response time, high reliability, and strong environmental adaptability (such as lunar environments). This also provides a new approach to vibration reduction technology for heavy-duty vehicles. Relatively speaking, permanent magnet rotary motor vibration reduction technology has advantages such as simple control system, high control precision, low torque ripple, and high power density.

[0004] However, when faced with large road surface excitation, permanent magnet rotary motor type shock absorbers cannot provide sufficient damping torque in a limited space, which may eventually lead to shock absorption failure, endangering people's lives and vehicle safety. Summary of the Invention

[0005] To address the aforementioned technical problems, this application provides a permanent magnet motor and eddy current integrated vibration damper.

[0006] The permanent magnet motor and eddy current fusion vibration damper provided by this invention adopts the following technical solution: A permanent magnet motor and eddy current integrated vibration damper includes a permanent magnet motor section, an eddy current damping section, an encoder, and a driver. The permanent magnet motor section includes a housing, a drive shaft, a permanent magnet motor stator, a rotor yoke, a permanent magnet motor excitation winding, and magnets. The drive shaft is rotatably mounted on the housing. The permanent magnet motor stator is fixedly mounted inside the housing around the drive shaft. The housing has an excitation winding outlet hole, and the housing has winding slots around the drive shaft. The magneto excitation winding is wound on the permanent magnet motor stator and housed in the winding slot; the permanent magnet motor excitation winding is connected to an external power supply through the excitation winding outlet hole; the rotor yoke is fixedly mounted on the drive shaft; the magnet is mounted on the rotor yoke; the eddy current damping section includes an eddy current damping stator, an eddy current damping rotor disc, an eddy current damping cage, an eddy current damping excitation coil, and eddy current damping magnetic poles; the eddy current damping stator, the eddy current damping cage, and the eddy current damping... The eddy current damping poles are all annular and coaxial with the drive shaft; the eddy current damping stator is sleeved on the outside of the housing; the eddy current damping rotor disk is located outside the housing and coaxially fixedly connected to the drive shaft; the eddy current damping cage is fixedly mounted on the eddy current damping stator; the eddy current damping excitation coil is wound on the eddy current damping stator through the eddy current damping cage; the eddy current damping poles are fixedly mounted on the eddy current damping rotor disk, and cut the magnetic field generated by the eddy current damping excitation coil as the eddy current damping rotor disk rotates; the eddy current damping stator has an excitation coil outlet hole; the eddy current damping excitation coil is connected to an external power supply through the excitation coil outlet hole; the encoder is mounted on the housing and is communicatively connected to the driver, used to acquire the rotation signal of the drive shaft and transmit it to the driver; the driver is used to adjust the magnitude of the excitation current of the permanent magnet motor excitation winding and the eddy current damping excitation coil according to the rotation signal of the drive shaft.

[0007] Optionally, the eddy current damped stator includes an inner ring, an outer ring, and a connecting portion; both the inner and outer rings are hollow cylinders and are coaxially arranged; the inner and outer rings are fixedly connected on the same side along their axial direction through the connecting portion, and the eddy current damping magnetic poles are located between the inner and outer rings, so that a transverse magnetic flux closed loop is formed within the eddy current damped stator.

[0008] Optionally, the gap between the eddy current damping magnetic pole and the inner and outer rings is between 0.6 mm and 1 mm.

[0009] Optionally, the eddy current damping magnetic pole includes a body and a hexagonal block; the body and the hexagonal block are integrally formed; the body is annular, the hexagonal block is a regular hexagonal prism, and the axis of the hexagonal block is parallel to the axis of the body; there are multiple hexagonal blocks, and the multiple hexagonal blocks are evenly spaced around the axis of the body.

[0010] Optionally, it also includes a speed increaser and a linkage mechanism; the linkage mechanism has a first end and a second end, the first end being connected to the wheel and the other end being connected to the input end of the speed increaser; the output end of the speed increaser is connected to the drive shaft.

[0011] Optionally, the permanent magnet motor excitation winding is connected to the vehicle power supply via a rectifier so that the permanent magnet motor portion can charge the vehicle.

[0012] Optionally, the eddy current damping rotor disk is made of aluminum alloy.

[0013] Optionally, the permanent magnet motor stator is formed by axial pressing of silicon steel sheets.

[0014] As described above, the permanent magnet motor and eddy current fusion vibration damper of the present invention have at least the following beneficial effects: The permanent magnet motor and eddy current fusion vibration damper of this invention features active, semi-active, and passive vibration damping and energy recovery functions. Controlled by the vehicle control system, it can select the appropriate damping mode based on road conditions to maximize the safety of personnel and vehicles. The damping provided by the permanent magnet motor and the eddy current damping provided by the eddy current damping components complement and redundancy each other, resulting in high reliability. This allows the permanent magnet motor and eddy current fusion vibration damper of this invention to increase damping torque within the same spatial dimensions compared to a permanent magnet motor-based vibration damper, thereby adapting to more diverse road conditions and reducing the likelihood of damping failure, ultimately contributing to the safety of personnel and vehicles. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the permanent magnet motor and the eddy current integrated vibration damper.

[0016] Figure 2 This is a schematic diagram of the shape of an eddy current damped excitation coil.

[0017] Figure 3 This is a schematic diagram of an eddy current damped stator structure.

[0018] Figure 4 This is a schematic diagram of a closed loop of transverse magnetic flux.

[0019] Figure 5 This is a schematic diagram of an eddy current damped magnetic pole structure.

[0020] Figure 6 It is a schematic diagram showing the direction of torque transmission between the wheel, linkage mechanism, speed increaser, permanent magnet motor, and eddy current damping components.

[0021] Reference numerals: 1. Left end cover; 2. Permanent magnet motor excitation winding; 3. Left insulating sheet; 4. Permanent magnet motor stator; 5. Rotor yoke; 6. Magnet; 7. Right insulating sheet; 8. Housing; 9. Eddy current damped rotor disc; 10. Eddy current damped stator; 101. Inner ring; 102. Outer ring; 11. Eddy current damped magnetic pole; 111. Body; 112. Hexagonal block; 12. Eddy current damped excitation coil; 13. Eddy current damped cage; 14. Drive shaft; 15. Encoder; 16. Excitation winding outlet hole; 17. Excitation coil outlet hole; 18. Transverse magnetic flux closed loop; 19. Road condition; 20. Wheel; 21. Linkage mechanism; 22. Speed ​​increaser. Detailed Implementation

[0022] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other. It should also be understood that the terminology used in the embodiments of the present invention is for describing specific implementation schemes and not for limiting the scope of protection of the present invention. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0023] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of the invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0024] Please refer to Figures 1-6 The present invention discloses a permanent magnet motor and eddy current integrated vibration damper, including a permanent magnet motor part, an eddy current damping part, an encoder 15 and a driver.

[0025] The permanent magnet motor includes a housing 8, a drive shaft 14, a permanent magnet motor stator 4, a rotor yoke 5, a permanent magnet motor excitation winding 2, and magnets 6. The drive shaft 14 is rotatably mounted on the housing 8. The permanent magnet motor stator 4 is fixedly mounted inside the housing 8 around the drive shaft 14. The housing 8 has an excitation winding outlet hole 16, and winding slots are formed inside the housing 8 around the drive shaft 14. The permanent magnet motor excitation winding 2 is wound in these winding slots and connected to an external power source through the excitation winding outlet hole 16. The rotor yoke 5 is fixedly mounted on the drive shaft 14. Magnets 6 are mounted on the rotor yoke 5.

[0026] For details, please refer to Figure 1 , Figure 2 The housing 8 is cylindrical, and the drive shaft 14 is coaxially mounted on it. A left end cover 1 and a right end cover are respectively provided on both sides of the housing 8 along the axial direction. One end of the drive shaft 14 is protected by the left end cover 1, and the other end passes through the right end cover and connects to other components.

[0027] The permanent magnet motor stator 4 is generally ring-shaped and is arranged around the drive shaft 14. The permanent magnet motor stator 4 is formed by stacking silicon steel sheets, thus having the advantages of low cost and low iron loss. In other embodiments of the present invention, the permanent magnet motor stator 4 may also use an amorphous alloy stator core or a soft magnetic composite material stator core. A left insulating sheet 3 and a right insulating sheet 7 are respectively provided on both sides of the permanent magnet motor stator 4 along the axial direction of the drive shaft 14 between it and the permanent magnet motor excitation winding 2 to ensure insulation between the permanent magnet motor stator 4 and the permanent magnet motor excitation winding 2.

[0028] The eddy current damping section includes an eddy current damped stator 10, an eddy current damped rotor disc 9, an eddy current damped cage 13, an eddy current damped excitation coil 12, and eddy current damped magnetic poles 11. The eddy current damped stator 10, the eddy current damped cage 13, and the eddy current damped magnetic poles 11 are all annular and coaxial with the drive shaft 14. The eddy current damped stator 10 is fitted onto the outside of the housing 8.

[0029] The eddy current damping rotor disk 9 is located outside the housing 8 and is coaxially fixedly connected to the drive shaft 14. The eddy current damping rotor disk 9 is disc-shaped and is fixedly connected to one end of the drive shaft 14 that extends out of the right end cover. To avoid magnetic short circuits and reduce the rotational inertia of the eddy current damping rotor disk 9, the eddy current damping rotor disk must be made of a non-magnetic, high-strength, and lightweight material. In a preferred embodiment of the present invention, the eddy current damping rotor disk 9 is made of aluminum alloy.

[0030] Eddy current damping retainer 13 is fixedly mounted on eddy current damping stator 10; eddy current damping excitation coil 12 is wound on eddy current damping stator 10 through eddy current damping retainer 13; eddy current damping magnetic pole 11 is fixedly mounted on eddy current damping rotor disk 9, and rotates with eddy current damping rotor disk 9 to cut the magnetic field generated by eddy current damping excitation coil 12. Excitation coil outlet hole 17 is provided on eddy current damping stator 10. Eddy current damping excitation coil 12 is connected to an external power supply through excitation coil outlet hole 17.

[0031] For details, please refer to Figure 1 , Figure 3 The eddy current damped stator 10 includes an inner ring 101, an outer ring 102, and a connecting part 103. Both the inner ring 101 and the outer ring 102 are hollow cylinders and are coaxially arranged. The inner ring 101 and the outer ring 102 are fixedly connected on the same side in the axial direction through the connecting part 103, and the eddy current damping magnetic pole 11 is located between the inner ring 101 and the outer ring 102, so that a transverse magnetic flux closed loop 18 is formed in the eddy current damped stator 10.

[0032] The reason why a transverse magnetic flux closed loop 18 can be formed between the eddy current damped stator 10 and the eddy current damped magnetic pole 11 is that the design of the inner ring 101 and the outer ring 102 creates a local "C"-shaped structure between the adjacent parts of the inner ring 101 and the outer ring 102 and the connecting part 103, and the eddy current damped magnetic pole 11 is located exactly inside the opening of the "C"-shaped structure. The transverse magnetic flux closed loop 18 is as follows: Figure 4 As shown in the dashed box in the image.

[0033] In a preferred embodiment of the present invention, the gaps between the eddy current damping magnetic pole 11 and the inner ring 101 and the outer ring 102 are all between 0.6mm and 1mm. This ensures that a stable transverse magnetic flux closed loop 18 can be formed between the eddy current damping stator 10 and the eddy current damping magnetic pole 11, and does not hinder the rotation of the eddy current damping rotor disk 9 which is fixedly connected to the eddy current damping magnetic pole 11.

[0034] Please refer to Figure 5 The eddy current damping magnetic pole 11 includes a body 111 and hexagonal blocks 112. The body 111 and the hexagonal blocks 112 are integrally formed. The body 111 is annular, and the hexagonal blocks 112 are regular hexagonal prisms, with the axis of the hexagonal blocks 112 parallel to the axis of the body 111. There are multiple hexagonal blocks 112, which are evenly spaced around the axis of the body 111. In this embodiment, the axis of the hexagonal blocks 112 passes perpendicularly through the circle containing the body 111. This shape of the eddy current damping magnetic pole 11 gives it a good magnetic focusing effect, enabling the eddy current damping part to provide effective damping. In this embodiment, there are twelve hexagonal blocks 112. In actual applications, the number of hexagonal blocks 112 can be appropriately increased or decreased according to the needs of damping performance.

[0035] Please refer to Figure 1 , Figure 6 The encoder 15 is mounted on the housing 8 and communicates with the driver to acquire the rotation signal of the drive shaft 14 and transmit it to the driver. The driver adjusts the excitation current of the permanent magnet motor excitation winding 2 and the eddy current damping excitation coil 12 according to the rotation signal of the drive shaft 14. By adjusting the excitation current of the permanent magnet motor excitation winding 2 and the eddy current damping excitation coil 12, the damping and eddy current damping of the permanent magnet motor can be adjusted, allowing them to complement and reinforce each other.

[0036] The permanent magnet motor and eddy current fusion vibration damper of the present invention also includes a speed increaser 22 and a linkage mechanism 21. The linkage mechanism 21 has a first end and a second end. The first end is connected to the wheel 20, and the other end is connected to the input end of the speed increaser 22. The output end of the speed increaser 22 is connected to the drive shaft 14. The function of the linkage mechanism 21 is to convert the up-and-down motion of the wheel 20 into the rotation of the input end of the speed increaser 22. It can adopt various forms of linkage.

[0037] Please refer to Figure 6 ( Figure 6 (The direction of the middle arrow indicates the direction of torque transmission). Through the above structure, the permanent magnet motor and eddy current fusion vibration damper of the present invention can achieve active vibration reduction, semi-active vibration reduction and passive vibration reduction, which will be described in detail below.

[0038] Active damping: The drive unit communicates with the vehicle's damping system sensors. When the damping system sensors detect severe road conditions 19, the vehicle's control system adjusts the excitation sequence of the permanent magnet motor in the eddy current fusion damper to cause the rotor yoke 5 to rotate forward or backward, driving the drive shaft 14 to rotate. The active torque output from the drive shaft 14 is transmitted to the linkage mechanism 21 via the speed increaser 22, forcing the linkage mechanism 21 to adjust the wheels 20 up and down to counteract or compensate for changes in road conditions 19, thus achieving active vibration absorption. During active damping, the vehicle's control system adjusts the magnitude of the active torque output from the drive shaft 14 according to the rotation signal fed back by the encoder 15, thereby adapting to various road surface excitations.

[0039] Semi-active damping: When the vehicle travels on a bumpy road, the road impact causes the wheels 20 to bounce repeatedly. The wheels 20 convert the road impact into rotational motion via the linkage mechanism 21, which is then input into the speed increaser 22. This causes the drive shaft 14 to drive the eddy current damping rotor disk 9 and the rotor yoke 5 to rotate at high speed. At this time, the vehicle's control system excites the eddy current damping excitation coil 12 through the driver, causing it to form a transverse closed magnetic circuit between the eddy current damping stator 10, the eddy current damping magnetic poles 11, and the air gap between them. According to the principle of electromagnetic induction, the high-speed rotating eddy current damping rotor disk 9 cuts the magnetic field lines, generating eddy currents on the eddy current damping stator 10, thereby generating damping torque, which hinders the rotation of the eddy current damping rotor disk 9 and suppresses road impact. The vehicle's control system adjusts the damping torque by adjusting the excitation current 8 of the eddy current damping excitation coil 12, thus adapting to different levels of road impact.

[0040] In a preferred embodiment of the present invention, the permanent magnet motor excitation winding 2 is connected to the vehicle power supply via a rectifier, so that the permanent magnet motor can charge the vehicle. During the semi-active vibration damping process, since the rotor yoke 5 of the permanent magnet motor also rotates at high speed, the permanent magnet motor excitation winding 2 cuts the magnetic field lines to generate alternating current. The rectifier feeds the rectified current into the vehicle power supply, thus realizing energy recovery.

[0041] Passive vibration damping: When the vehicle is traveling on a good road surface 19, the road surface excitation forces the wheels 20 to bounce up and down. The wheels 20 convert the excitation into rotational motion through the linkage mechanism 21, which is then input into the speed increaser 22 to increase speed, causing the drive shaft 14 to drive the eddy current damping rotor disk 9 and rotor yoke 5 to rotate at high speed. At the same time, the alternating current generated by the permanent magnet motor excitation winding 2 cutting the magnetic field lines generates damping torque through the rectifier and the load resistor. The damping torque hinders the rotation of the rotor yoke 5, thus playing a vibration damping role. The rectified direct current is recycled back into the vehicle's power supply. When the wheel 20 requires greater damping, the vehicle's control system excites the eddy current damping excitation coil 12 through the driver, thereby providing eddy current damping torque as a supplement.

[0042] The permanent magnet motor and eddy current fusion vibration damper of this invention has active, semi-active, and passive vibration damping and energy recovery functions. Controlled by the vehicle control system, it can select the appropriate vibration damping mode according to road conditions 19 to maximize the safety of personnel and vehicles. The damping provided by the permanent magnet motor and the eddy current damping provided by the eddy current damping components can complement and back each other, resulting in high reliability. This allows the permanent magnet motor and eddy current fusion vibration damper of this invention to increase the damping torque compared to a permanent magnet motor-based vibration damper within the same size space, thereby adapting to more diverse road conditions 19 and reducing the occurrence of vibration damping failure, contributing to the safety of personnel and vehicles.

[0043] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A permanent magnet motor and eddy current integrated vibration damper, characterized in that: It includes a permanent magnet motor, an eddy current damping section, an encoder (15), and a driver; among which, The permanent magnet motor part includes a housing (8), a drive shaft (14), a permanent magnet motor stator (4), a rotor yoke (5), a permanent magnet motor excitation winding (2), and a magnet (6). The drive shaft (14) is rotatably mounted on the housing (8); the permanent magnet motor stator (4) is fixedly mounted inside the housing (8) around the drive shaft (14); the housing (8) has an excitation winding outlet hole (16), and the housing (8) has a winding slot around the drive shaft (14), the permanent magnet motor excitation winding (2) is wound on the permanent magnet motor stator (4) and accommodated in the winding slot; the permanent magnet motor excitation winding (2) is connected to an external power source through the excitation winding outlet hole (16); the rotor yoke (5) is fixedly mounted on the drive shaft (14); the magnet (6) is mounted on the rotor yoke (5); The eddy current damping part includes an eddy current damping stator (10), an eddy current damping rotor disk (9), an eddy current damping cage (13), an eddy current damping excitation coil (12), and an eddy current damping magnetic pole (11). The eddy current damped stator (10), the eddy current damped cage (13), and the eddy current damped magnetic poles (11) are all annular and coaxial with the drive shaft (14); the eddy current damped stator (10) is sleeved on the outside of the housing (8); the eddy current damped rotor disk (9) is located outside the housing (8) and is coaxially fixedly connected to the drive shaft (14); the eddy current damped cage (13) is fixedly mounted on the eddy current damped stator (10); the eddy current damped excitation coil (12) The eddy current damping stator (10) is wound around the eddy current damping retainer (13); the eddy current damping magnetic pole (11) is fixedly disposed on the eddy current damping rotor disk (9) and rotates with the eddy current damping rotor disk (9) to cut the magnetic field generated by the eddy current damping excitation coil (12); the eddy current damping stator (10) is provided with an excitation coil outlet hole (17); the eddy current damping excitation coil (12) is connected to an external power source through the excitation coil outlet hole (17); The encoder (15) is mounted on the housing (8) and is communicatively connected to the driver. It is used to acquire the rotation signal of the transmission shaft (14) and transmit it to the driver. The driver is used to adjust the magnitude of the excitation current of the permanent magnet motor excitation winding (2) and the eddy current damping excitation coil (12) according to the rotation signal of the transmission shaft (14).

2. The permanent magnet motor and eddy current fusion vibration damper according to claim 1, characterized in that: The eddy current damping stator (10) includes an inner ring (101), an outer ring (102), and a connecting part (103). The inner ring (101) and the outer ring (102) are both hollow cylinders and are coaxially arranged. The inner ring (101) and the outer ring (102) are fixedly connected on the same side of the axial direction through the connecting part (103), and the eddy current damping magnetic pole (11) is located between the inner ring (101) and the outer ring (102) so that a transverse magnetic flux closed loop (18) is formed in the eddy current damping stator (10).

3. The permanent magnet motor and eddy current fusion vibration damper according to claim 2, characterized in that, The gaps between the eddy current damping magnetic pole (11) and the inner ring (101) and the outer ring (102) are all between 0.6 mm and 1 mm.

4. The permanent magnet motor and eddy current fusion vibration damper according to claim 3, characterized in that: The eddy current damping magnetic pole (11) includes a body (111) and a hexagonal block (112); the body (111) and the hexagonal block (112) are integrally formed; The main body (111) is ring-shaped, the hexagonal block (112) is a regular hexagonal prism, and the axis of the hexagonal block (112) is parallel to the axis of the main body (111); The number of hexagonal blocks (112) is multiple, and the multiple hexagonal blocks (112) are evenly spaced around the axis of the body (111).

5. The permanent magnet motor and eddy current fusion vibration damper according to claim 1, characterized in that: It also includes a speed increaser (22) and a linkage mechanism (21); The linkage mechanism (21) has a first end and a second end, the first end being connected to the wheel (20) and the other end being connected to the input end of the speed increaser (22); the output end of the speed increaser (22) is connected to the drive shaft (14).

6. The permanent magnet motor and eddy current fusion vibration damper according to claim 1 or 5, characterized in that, The permanent magnet motor excitation winding (2) is connected to the vehicle power supply via a rectifier so that the permanent magnet motor can charge the vehicle.

7. The permanent magnet motor and eddy current fusion vibration damper according to claim 1, characterized in that, The eddy current damping rotor disk (9) is made of aluminum alloy.

8. The permanent magnet motor and eddy current fusion vibration damper according to claim 1, characterized in that, The permanent magnet motor stator (4) is formed by axial pressing of silicon steel sheets.

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