Suspension motor damper

Abstract

This invention discloses a suspension motor shock absorber, belonging to the field of automotive suspension technology. It solves the problems of slow response, low adjustment precision, and poor road condition adaptability in existing shock absorbers. An upper mounting assembly is installed at the top of a central cooling shaft. The magnet of the motor stator is housed within the motor housing. A spring base is located at the top of the motor housing. The bottom end of the central cooling shaft slides into the motor housing. A lower support is located at the bottom of the motor housing. A spring is installed between the upper mounting assembly and the spring base. The top end of the motor mover's cooling shaft is fixed to the bottom end of the central cooling shaft. An iron core is installed on the outer wall of the motor mover's cooling shaft, and a coil is housed within the iron core slot. Water-cooling channels are provided between the central cooling shaft and the motor mover's cooling shaft. A sensor readout is installed on the spring base, and a sensor magnetic grating is installed on the central cooling shaft. The suspension motor shock absorber provided by this invention is used for automotive vibration damping, offering fast response, high adjustment precision, and good road condition adaptability, thus improving ride comfort and vehicle handling performance.

Description

Technical Field

[0001] This invention belongs to the field of automotive suspension technology, and more specifically, relates to a suspension motor shock absorber. Background Technology

[0002] The suspension is a crucial component of a car, connecting the wheels to the body and providing support, cushioning, and shock absorption. Traditional suspension systems primarily utilize mechanical components such as springs and shock absorbers to achieve these functions. However, with the continuous development of electric vehicle technology, the demands on suspension systems are constantly increasing. Traditional suspension systems suffer from slow response times, low adjustment precision, and poor adaptability to various road conditions, failing to meet the requirements of electric vehicles. Therefore, there is an urgent need for a suspension shock absorber that can respond quickly, adjust with high precision, and adapt to different road conditions. Summary of the Invention

[0003] The present invention provides a suspension motor shock absorber with fast response speed, high adjustment precision, adaptability to different road conditions, and improved ride comfort and vehicle handling performance.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: This invention discloses a suspension motor shock absorber, comprising an upper mounting assembly, a central cooling shaft, a spring, and a linear motor. The upper mounting assembly is mounted on the top end of the central cooling shaft. The linear motor includes a motor stator and a motor mover. The motor stator includes a motor housing and a magnet, the magnet being disposed inside the motor housing. A spring base is disposed at the top end of the motor housing. The bottom end of the central cooling shaft slides through a sliding hole in the spring base and extends into the motor housing. A lower support is disposed at the bottom end of the motor housing. The spring is sleeved on the central cooling shaft. Between the upper mounting assembly and the spring base, the motor mover includes an iron core, a coil, and a motor mover cooling shaft. The top end of the motor mover cooling shaft is fixedly disposed at the bottom end of the central cooling shaft. The iron core is disposed on the outer side wall of the motor mover cooling shaft, and the iron core has an iron core groove. The coil is disposed in the iron core groove. The central cooling shaft and the motor mover cooling shaft are provided with a communicating water cooling channel. The spring base is provided with a sensor read head, and the central cooling shaft is provided with a sensor magnetic grating. The center of the sensor read head is aligned with the center of the sensor magnetic grating.

[0005] Furthermore, a spring top seat is provided at the bottom end of the upper mounting bracket assembly, a spring top pad is provided on the spring top seat, a spring bottom pad is provided on the spring base, and the spring is disposed between the spring top pad and the spring bottom pad.

[0006] Furthermore, the bottom end of the motor mover cooling shaft is provided with an iron core base, the motor mover cooling shaft is provided with a central guide hole in the axial direction, the lower support seat is provided with a guide post, the top end of the guide post is slidably connected in the central guide hole, the bottom end of the guide post is provided with an anti-collision pad, and the bottom end of the spring base is provided with a limiting pad.

[0007] Furthermore, the top and bottom ends of the central cooling shaft are provided with a first external thread, which is threaded to a first locking nut. The top end of the central cooling shaft passes through the mounting hole of the upper mounting base assembly. The bottom end of the motor mover cooling shaft is provided with a second external thread, which is threaded to a second locking nut. The second locking nut is located below the iron core base.

[0008] Furthermore, a cylinder sleeve is fixedly fitted on the outer side of the central cooling shaft, and the cylinder sleeve slides through the sliding hole of the spring base and extends into the motor housing.

[0009] Furthermore, a first sliding bearing is fixedly installed in the sliding hole of the spring base, the bottom end of the shaft cylinder sleeve slides through the first sliding bearing, a second sliding bearing is installed in the central guide hole of the motor mover cooling shaft, and the top end of the guide post slides through the second sliding bearing and extends into the central guide hole of the motor mover cooling shaft.

[0010] Furthermore, a sealing ring is fitted inside the sliding hole of the spring base, and the sealing ring is located above the first sliding bearing.

[0011] Furthermore, a water-cooled connecting seat is provided at the bottom end of the motor mover cooling shaft, and an annular water groove is provided on the water-cooled connecting seat. The annular water groove is connected to the water-cooling channel of the motor mover cooling shaft. A central hole is provided axially on the central cooling shaft, and a cooling water nozzle is provided at the top end of the central cooling shaft. The cooling water nozzle is connected to the water-cooling channel of the central cooling shaft, and a sealing gasket is provided between the cooling water nozzle and the central cooling shaft.

[0012] Furthermore, a guide seat is provided between the central cooling shaft and the motor mover cooling shaft, and the guide seat is fixedly connected to the central cooling shaft and the motor mover cooling shaft respectively.

[0013] Furthermore, a shock absorber dust cover is provided between the upper mounting bracket assembly and the spring base.

[0014] The beneficial effects of this invention are: This application provides a suspension motor damper. When the damper is working, a sensor reader and a sensor magnetic grating are used to accurately detect the compression or tension state of the suspension. Based on the suspension state, the magnitude and direction of the linear motor's magnetic flux are adjusted to control the magnitude and direction of the generated resistance, working in conjunction with a spring to achieve real-time and precise adjustment of the vehicle height and suspension stiffness. The suspension motor damper plays an active control role in the suspension system. When encountering a raised road surface, as the suspension moves upward, the damper generates downward resistance through a linear motor composed of a stator and a mover, suppressing the vehicle's upward movement. When encountering a sunken road surface, as the suspension stretches (descends), the damper generates upward resistance through a linear motor, suppressing the vehicle's downward movement and assisting the suspension in coping with impacts. The active and rapid control of the suspension motor damper helps improve vehicle stability and ride comfort. The linear motor housing is fixedly connected to the spring base. The bottom end of the central cooling shaft slides through the sliding hole of the spring base and extends into the motor housing, where it is fixedly connected to the motor mover cooling shaft. The spring is sleeved on the central cooling shaft, resulting in a simple and compact structure. A connected water-cooling channel is provided between the central cooling shaft and the motor mover cooling shaft. Cooling water enters the motor mover cooling shaft through the water-cooling channel for circulating cooling, carrying away the large amount of heat generated by the coils and iron core during operation. This facilitates heat dissipation of the linear motor and ensures stable electromagnetic output performance. The suspension motor damper of this application is used for automotive suspension damping. It features a simple and compact structure, fast response speed, high adjustment precision and efficiency, good adaptability, and suitability for different road conditions. It improves ride comfort and vehicle handling performance, and is particularly suitable for electric vehicle suspension damping. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a cross-sectional view of a suspension motor shock absorber provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the installation of the sensor magnetic grating and the central cooling shaft provided in an embodiment of the present invention.

[0017] Figure label: 1. Cooling water nozzle, 2. Upper mounting base assembly, 3. Spring top seat, 4. Spring top pad, 5. Spring, 6. Central cooling shaft, 601 central hole, 7. Cooling hole, 8. Shaft cylinder liner, 9. Sealing ring, 10. Spring base, 11. Spring bottom pad, 12. First sliding bearing, 13. Limiting pad, 14. Motor housing, 15. Magnet, 16. Motor mover cooling shaft, 16. Central guide hole, 1601, Iron core, 17. Coil, 18. Second sliding bearing, 19. Iron core base, 20. Second locking nut, 21. Water cooling connecting seat, 22. Guide column, 23. Anti-collision pad, 24. Lower bracket seat, 25. Guide seat, 26. First locking nut, 27. Sensor reading head, 28. Vibration damper dust cover, 29. Sensor magnetic grid, 30. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1 , Figure 2As shown, this embodiment provides a suspension motor shock absorber, including an upper mounting assembly 2, a central cooling shaft 6, a spring 5, and a linear motor. The upper mounting assembly 2 is mounted on the top of the central cooling shaft 6. The linear motor includes a motor stator and a motor mover. The motor stator includes a motor housing 14 and a magnet 15. The magnet 15 is disposed inside the motor housing 14. A spring base 10 is disposed at the top of the motor housing 14. The bottom end of the central cooling shaft 6 slides through a sliding hole in the spring base 10 and extends into the motor housing 14. A lower support seat 25 is disposed at the bottom of the motor housing 14. The spring 5 is sleeved on the central cooling shaft 6. Between the upper mounting assembly 2 and the spring base 10, the motor mover includes an iron core 17, a coil 18, and a motor mover cooling shaft 16. The top end of the motor mover cooling shaft 16 is fixedly mounted on the bottom end of the central cooling shaft 6. The iron core 17 is disposed on the outer wall of the motor mover cooling shaft 16, and the iron core 17 has an iron core groove. The coil 18 is disposed in the iron core groove. The central cooling shaft 6 and the motor mover cooling shaft 16 are provided with a communicating water-cooling channel. The spring base 10 is provided with a sensor read head 28, and the central cooling shaft 6 is provided with a sensor magnetic grid 30. The center of the sensor read head 28 is aligned with the center of the sensor magnetic grid 30. The water-cooling channel of the central cooling shaft 6 is a cooling hole 7 opened along the axial direction of the central cooling shaft 6. The central cooling shaft 6, the motor housing 14, and the motor mover cooling shaft 16 are coaxially arranged. The upper end of the upper mounting assembly 2 is connected to the vehicle body, and the lower bracket 25 is connected to the vehicle suspension components. A blind hole is provided on the central cooling shaft 6 for mounting the sensor magnetic grating 30. The sensor magnetic grating 30 is snapped into the central cooling shaft 6. The sensor reading head 28 and the sensor magnetic grating 30 form a magnetic grating sensor. The sensor magnetic grating 30 can be selected as a single magnetic strip or a double magnetic strip depending on the accuracy and cost requirements. Other displacement sensors, such as Hall / magnetic reluctance linear position sensors, can also be used. The magnet 15 is bonded to the inside of the motor housing 14 using a Helbeck array. The coil 18 is wound and arranged in the corresponding iron core slot. The spring 5 is a helical spring or a hollow spring. The motor housing 14 and the spring base 10 are fixedly connected by screws, or the bottom end of the spring base 10 is provided with external threads, and the top end of the motor housing 14 is provided with internal threads, and the motor housing 14 and the spring base 10 are fixedly connected by threads.

[0021] A suspension motor damper based on the above structure is used. When the suspension motor damper is working, the magnetic grating sensor composed of the sensor reading head 28 and the sensor magnetic grating 30 is used to accurately detect the compression or tension state of the suspension. According to the state of the suspension, the magnitude and direction of the linear motor magnetic flux are adjusted to control the magnitude and direction of the resistance generated. In conjunction with the spring 5, the vehicle height and suspension stiffness are adjusted in real time. The suspension motor damper plays an active control role in the suspension system. When encountering a bumpy road surface, the vehicle body rises, and the suspension moves upward. The sensor reader 28 accurately detects the upward displacement and speed of the suspension and transmits this data to the vehicle's control system. The control system calculates the suppressive force required to inhibit the upward movement of the suspension. The control system then instructs the suspension motor damper to respond quickly via a linear motor composed of a stator and a mover. By adjusting the magnitude and direction of the current in the linear motor, the magnitude and direction of the magnetic flux are changed, generating a downward resistance force, i.e., a downward electromagnetic force, opposite to the upward lifting direction. This force acts on the mover of the linear motor, causing the iron core 17 to move downward, which in turn moves the mover cooling shaft 16 downward, causing the central cooling shaft 6 to move downward, and the upper mounting assembly 2 to move downward. This compresses the spring 5, inhibiting the upward movement of the entire vehicle. Similarly, when encountering a sunken road surface, the vehicle... When the vehicle body sinks downwards and the suspension stretches downwards (descends), sensor head 28 detects the downward displacement and velocity of the suspension and transmits this data to the vehicle's control system. The control system calculates the suppressive force required to inhibit the downward movement of the suspension. The control system instructs the suspension motor damper to respond quickly through a linear motor composed of a motor stator and a motor mover. By adjusting the magnitude and direction of the current in the linear motor, the magnitude and direction of the magnetic flux in the linear motor are adjusted, generating an upward resistance, i.e., an upward electromagnetic force, opposite to the downward sinking direction. This force acts on the motor mover of the linear motor, causing the iron core 17 to move upwards, which in turn moves the motor mover cooling shaft 16 upwards, which in turn moves the central cooling shaft 6 upwards, which in turn moves the upper mounting bracket assembly 2 upwards. The spring 5 stretches, inhibiting the downward movement of the entire vehicle and assisting the suspension in coping with impacts. The active and rapid control of the suspension motor damper helps improve vehicle stability and ride comfort. The linear motor housing 14 is fixedly connected to the spring base 10. The bottom end of the central cooling shaft 6 slides through the sliding hole of the spring base 10 and extends into the motor housing 14, where it is fixedly connected to the motor mover cooling shaft 16 of the motor mover. The spring 5 is sleeved on the central cooling shaft 6. The structure is simple and compact. The central cooling shaft 6 and the motor mover cooling shaft 16 are connected by a water-cooling channel. Cooling water enters the motor mover cooling shaft 16 through the water-cooling channel for circulating cooling, which removes a large amount of heat generated by the coil 18 and the iron core 17 during operation. This is beneficial for the heat dissipation of the linear motor and ensures the stable electromagnetic output performance of the linear motor.The suspension motor damper of this application is used for vibration reduction of automotive suspension. It has a simple and compact structure, fast response speed, high adjustment accuracy and efficiency, good adaptability, and can adapt to different road conditions, improving ride comfort and vehicle handling performance. It is particularly suitable for vibration reduction of electric vehicle suspension and plays an important role in fields such as autonomous driving and intelligent connectivity.

[0022] As one possible implementation method, such as Figure 1 As shown, a spring top seat 3 is provided at the bottom end of the upper mounting base assembly 2, a spring top pad 4 is provided on the spring top seat 3, a spring bottom pad 11 is provided on the spring base 10, and the spring 5 is disposed between the spring top pad 4 and the spring bottom pad 11.

[0023] The spring top seat 3 can be fixedly installed on the upper mounting base assembly 2 by screws. The spring top pad 4 is fixedly installed on the spring top seat 3 by snap-fit, positioning claw or direct press fitting. The spring bottom pad 11 is fixedly installed on the spring base 10. The upper end of the spring 5 abuts against the spring top pad 4 and the lower end of the spring 5 abuts against the spring bottom pad 11. The spring 5 abuts between the spring top pad 4 and the spring bottom pad 11, which plays a role in buffering and shock absorption.

[0024] As one possible implementation method, such as Figure 1 As shown, the bottom end of the motor mover cooling shaft 16 is provided with an iron core base 20, the motor mover cooling shaft 16 is provided with a central guide hole 1601 in the axial direction, the lower support seat 25 is provided with a guide post 23, the top end of the guide post 23 is slidably connected in the central guide hole 1601, the bottom end of the guide post 23 is provided with an anti-collision pad 24, and the bottom end of the spring base 10 is provided with a limiting pad 13.

[0025] The iron core base 20 supports the iron core 17. The iron core base 20 is arranged around the bottom periphery of the motor mover cooling shaft 16 and is fixed to the bottom end of the motor mover cooling shaft 16 by screws, welding, set screws, or lock nuts. The anti-collision pad 24 serves as a limiting buffer when the suspension motor damper compresses and descends. The anti-collision pad 24 can be fixed to the guide column 23 or the lower bracket seat 25 using existing methods such as screws. The limiting pad 13 serves as a limiting buffer when the suspension motor damper reaches its tensile limit. The limiting pad 13 can be fixed to the spring base 10 using existing methods such as screws.

[0026] As one possible implementation method, such as Figure 1 , Figure 2 As shown, the top and bottom ends of the central cooling shaft 6 are provided with a first external thread, which is threaded to a first locking nut 27. The top end of the central cooling shaft 6 passes through the mounting hole of the upper mounting base assembly 2. The bottom end of the motor mover cooling shaft 16 is provided with a second external thread, which is threaded to a second locking nut 21. The second locking nut 21 is located below the iron core base 20.

[0027] A first annular boss is provided at the top of the central cooling shaft 6. The first annular boss is arranged around the periphery of the top of the central cooling shaft 6. The mounting hole of the upper mounting assembly 2 is inserted into the top of the central cooling shaft 6. The bottom end of the upper mounting assembly 2 abuts against the top surface of the first annular boss. The first locking nut 27 is screwed into the top of the central cooling shaft 6. By tightening the first locking nut 27 at the top of the central cooling shaft 6, the upper mounting assembly 2 is fixed on the central cooling shaft 6, and the spring 5 is positioned between the spring top seat 3 and the spring base 10, which plays a fixed and limiting role. The iron core base 20 has a sliding hole that mates with the motor mover cooling shaft 16. The bottom end of the motor mover cooling shaft 16 slides through the sliding hole of the iron core base 20. Tighten the second locking nut 21 below. The second locking nut 21 is used to fix and support the iron core base 20. The first locking nut 27 and the second locking nut 21 at the bottom end of the central cooling shaft 6 mate to fix the iron core 17 between the first locking nut 27 at the bottom end of the central cooling shaft 6 and the iron core base 20.

[0028] As one possible implementation method, such as Figure 1 , Figure 2 As shown, a water-cooled connecting seat 22 is provided at the bottom end of the motor mover cooling shaft 16. The water-cooled connecting seat 22 has an annular water groove, which is connected to the water-cooling channel of the motor mover cooling shaft 16. A central hole 601 is provided axially on the central cooling shaft 6. A cooling water nozzle 1 is provided at the top end of the central cooling shaft 6. The cooling water nozzle 1 is connected to the water-cooling channel of the central cooling shaft 6. A sealing gasket is provided between the cooling water nozzle 1 and the central cooling shaft 6.

[0029] The water-cooled connecting seat 22 is welded to the bottom end of the motor mover cooling shaft 16. The annular water groove of the water-cooled connecting seat 22 connects to the inlet and outlet water-cooling channels of the motor mover cooling shaft 16, which in turn connect to the inlet and outlet water-cooling channels of the central cooling shaft 6, forming a U-shaped circulating cooling water circuit to facilitate the circulation of cooling water. Two parallel cooling holes 7 are opened along the axial direction of the central cooling shaft 6, and two corresponding cooling holes are opened along the axial direction of the motor mover cooling shaft 16. The two cooling holes of the central cooling shaft 6 connect to the corresponding cooling holes of the motor mover cooling shaft 16, and the two cooling holes of the motor mover cooling shaft 16 are respectively connected to the inlet and outlet ends of the annular water groove, forming a U-shaped circulating cooling water circuit. The cooling water nozzle 1 is bolted to the central cooling shaft 6, serving as the inlet and outlet of the cooling water. A sealing gasket is installed at the connection between the cooling water nozzle 1 and the central cooling shaft 6 to provide a tight seal and prevent water leakage at the inlet and outlet of the water-cooling channels of the cooling water nozzle 1 and the central cooling shaft 6.

[0030] As one possible implementation method, such as Figure 1 , Figure 2As shown, a cylinder sleeve 8 is fixedly sleeved on the outer side of the central cooling shaft 6, and the cylinder sleeve 8 slides through the sliding hole of the spring base 10 and extends into the motor housing 14.

[0031] The cylinder liner 8 is fixedly mounted on the outside of the central cooling shaft 6, protecting the sensor magnetic grid 30 on the outside of the central cooling shaft 6. A second annular boss is provided at the bottom end of the central cooling shaft 6, which surrounds the bottom periphery of the central cooling shaft 6. The bottom end face of the cylinder liner 8 abuts against the top surface of the second annular boss, and the top end face of the cylinder liner 8 abuts against the bottom surface of the upper mounting base assembly 2.

[0032] As one possible implementation method, such as Figure 1 As shown, a first sliding bearing 12 is fixedly installed in the sliding hole of the spring base 10, the bottom end of the shaft cylinder sleeve 8 slides through the first sliding bearing 12, a second sliding bearing 19 is installed in the center guide hole 1601 of the motor mover cooling shaft 16, and the top end of the guide post 23 slides through the second sliding bearing 19 and extends into the center guide hole 1601 of the motor mover cooling shaft 16.

[0033] The first sliding bearing 12 is fixedly installed in the sliding hole of the spring base 10, which guides the cylinder liner 8, reduces friction, and ensures smooth sliding of the cylinder liner 8. The second sliding bearing 19 is fixedly installed in the central guide hole 1601 of the motor mover cooling shaft 16, which guides the guide post 23, reduces friction, and ensures smooth sliding of the guide post 23. This ensures that the central cooling shaft 6 can rise and fall smoothly to adapt to different road conditions and improve ride comfort and vehicle handling performance. A retaining ring is installed on the spring base 10 to limit the first sliding bearing 12. An annular groove around the periphery of the sliding hole is opened on the inner wall of the sliding hole of the spring base 10. A retaining ring for the hole is installed in the annular groove. The sliding hole of the spring base 10 is countersunk from the top to the bottom, forming a countersunk step at the bottom of the sliding hole of the spring base 10. The first sliding bearing 12 is inserted into the sliding hole from the top of the sliding hole of the spring base 10. The bottom of the first sliding bearing 12 abuts against the countersunk step, and the top of the first sliding bearing 12 abuts against the retaining ring for the hole, thus limiting the axial movement of the first sliding bearing 12. The first sliding bearing 12 is interference-fitted with the sliding hole of the spring base 10 to prevent rotation.

[0034] As one possible implementation method, such as Figure 1 As shown, a sealing ring 9 is fitted inside the sliding hole of the spring base 10, and the sealing ring 9 is located above the first sliding bearing 12.

[0035] The sealing ring 9 is fixedly installed in the sliding hole of the spring base 10, located between the spring base 10 and the shaft cylinder sleeve 8, and plays a role in sealing and vibration isolation.

[0036] As one possible implementation method, such as Figure 1, Figure 2 As shown, a guide seat 26 is provided between the central cooling shaft 6 and the motor mover cooling shaft 16, and the guide seat 26 is fixedly connected to the central cooling shaft 6 and the motor mover cooling shaft 16 respectively.

[0037] The guide seat 26 is fixedly installed between the central cooling shaft 6 and the motor mover cooling shaft 16 to ensure guiding and positioning. The central cooling shaft 6 and the motor mover cooling shaft 16 are welded and fixed or integrally formed after being positioned by the guide seat 26.

[0038] As one possible implementation method, such as Figure 1 As shown, a shock absorber dust cover 29 is provided between the upper mounting base assembly 2 and the spring base 10.

[0039] Spring 5 is fitted onto the outside of the shock absorber dust cover 29. The top of the shock absorber dust cover 29 is fixedly mounted on the upper mounting assembly 2, and the bottom of the shock absorber dust cover 29 is fixedly mounted on the spring base 10, serving as a dustproof function to prevent dust, sand, and other debris from entering the shock absorber, thus improving adaptability and durability. If the shock absorber dust cover 29 is a rubber corrugated sleeve, the top of the rubber corrugated sleeve is fitted onto the top of the central cooling shaft 6 and locked with a clamp. Furthermore, the periphery of the top of the rubber corrugated sleeve is pressed against the first annular boss by the upper mounting assembly 2; the bottom of the rubber corrugated sleeve is fitted onto the spring base 10 and locked with a clamp.

[0040] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A suspension motor shock absorber, characterized in that, The system includes an upper mounting assembly (2), a central cooling shaft (6), a spring (5), and a linear motor. The upper mounting assembly (2) is mounted on the top of the central cooling shaft (6). The linear motor includes a motor stator and a motor mover. The motor stator includes a motor housing (14) and a magnet (15). The magnet (15) is located inside the motor housing (14). A spring base (10) is located at the top of the motor housing (14). The bottom end of the central cooling shaft (6) slides through the sliding hole of the spring base (10) and extends into the motor housing (14). A lower support seat (25) is located at the bottom of the motor housing (14). The spring (5) is sleeved on the central cooling shaft (6) and is located on the upper mounting assembly (2). Between the spring base (10) and the motor mover, the motor mover includes an iron core (17), a coil (18), and a motor mover cooling shaft (16). The top end of the motor mover cooling shaft (16) is fixedly set at the bottom end of the central cooling shaft (6). The iron core (17) is set on the outer wall of the motor mover cooling shaft (16). The iron core (17) has an iron core groove. The coil (18) is set in the iron core groove. The central cooling shaft (6) and the motor mover cooling shaft (16) are connected by a water cooling channel. The spring base (10) is equipped with a sensor reading head (28). The central cooling shaft (6) is equipped with a sensor magnetic grid (30). The center of the sensor reading head (28) is aligned with the center of the sensor magnetic grid (30).

2. A suspension motor shock absorber according to claim 1, characterized in that, The bottom end of the upper mounting bracket assembly (2) is provided with a spring top seat (3), the spring top seat (3) is provided with a spring top pad (4), the spring base (10) is provided with a spring bottom pad (11), and the spring (5) is provided between the spring top pad (4) and the spring bottom pad (11).

3. A suspension motor shock absorber according to claim 1, characterized in that, The bottom end of the motor mover cooling shaft (16) is provided with an iron core base (20), the motor mover cooling shaft (16) is provided with a central guide hole (1601) in the axial direction, the lower support base (25) is provided with a guide post (23), the top end of the guide post (23) is slidably connected in the central guide hole (1601), the bottom end of the guide post (23) is provided with an anti-collision pad (24), and the bottom end of the spring base (10) is provided with a limiting pad (13).

4. A suspension motor shock absorber according to claim 3, characterized in that, The top and bottom ends of the central cooling shaft (6) are provided with a first external thread, which is threaded to a first locking nut (27). The top end of the central cooling shaft (6) passes through the mounting hole of the upper mounting base assembly (2). The bottom end of the motor mover cooling shaft (16) is provided with a second external thread, which is threaded to a second locking nut (21). The second locking nut (21) is located below the iron core base (20).

5. A suspension motor shock absorber according to claim 4, characterized in that, A cylinder sleeve (8) is fixedly fitted on the outside of the central cooling shaft (6), and the cylinder sleeve (8) slides through the sliding hole of the spring base (10) and extends into the motor housing (14).

6. A suspension motor shock absorber according to claim 5, characterized in that, A first sliding bearing (12) is fixedly installed in the sliding hole of the spring base (10). The bottom end of the shaft cylinder sleeve (8) slides through the first sliding bearing (12). A second sliding bearing (19) is installed in the center guide hole (1601) of the motor mover cooling shaft (16). The top end of the guide post (23) slides through the second sliding bearing (19) and extends into the center guide hole (1601) of the motor mover cooling shaft (16).

7. A suspension motor shock absorber according to claim 6, characterized in that, A sealing ring (9) is fitted inside the sliding hole of the spring base (10), and the sealing ring (9) is located above the first sliding bearing (12).

8. A suspension motor shock absorber according to claim 1, characterized in that, The bottom end of the motor mover cooling shaft (16) is provided with a water-cooled connecting seat (22), the water-cooled connecting seat (22) has an annular water groove, the annular water groove is connected to the water-cooling channel of the motor mover cooling shaft (16), the central cooling shaft (6) is provided with a central hole (601) in the axial direction, the top end of the central cooling shaft (6) is provided with a cooling water nozzle (1), the cooling water nozzle (1) is connected to the water-cooling channel of the central cooling shaft (6), and a sealing gasket is provided between the cooling water nozzle (1) and the central cooling shaft (6).

9. A suspension motor shock absorber according to claim 1, characterized in that, A guide seat (26) is provided between the central cooling shaft (6) and the motor mover cooling shaft (16), and the guide seat (26) is fixedly connected to the central cooling shaft (6) and the motor mover cooling shaft (16) respectively.

10. A suspension motor shock absorber according to claim 1, characterized in that, A shock absorber dust cover (29) is provided between the upper mounting bracket assembly (2) and the spring base (10).

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