An active suspension electro-hydraulic pump assembly motor and rotor components and rotor modules thereof

Abstract

The utility model discloses a motor and its rotor component, rotor module for active suspension electro-hydraulic pump assembly, which comprises a silicon steel sheet assembly, a plurality of magnetic steels and an injection molding part. The silicon steel sheet assembly is provided with a plurality of magnetic steel grooves, and the magnetic steels are arranged in the magnetic steel grooves. The injection molding part comprises a plurality of filling parts and connecting parts located at both ends of the silicon steel sheet assembly. The silicon steel sheet assembly is provided with a plurality of injection molding holes, the filling parts are filled in the injection molding holes, and both ends of the filling parts are connected with the connecting parts. The rotor module comprises the rotor component, a rotating shaft and an induction magnet. The silicon steel sheet assembly is provided with a rotating shaft hole, the rotating shaft is arranged in the rotating shaft hole and fixedly connected with the silicon steel sheet assembly, and the induction magnet is connected to one end of the rotating shaft. The motor for active suspension electro-hydraulic pump assembly comprises the rotor component or the rotor module.

Description

Technical Field

[0001] This utility model belongs to the field of electro-hydraulic pump technology, and in particular relates to an active suspension electro-hydraulic pump assembly motor and its rotor components and rotor module. Background Technology

[0002] The suspension system connects the wheels and the vehicle body, primarily functioning to cushion vibrations from uneven road surfaces, improving ride comfort and handling. Common suspension types include passive suspension, semi-active suspension, and active suspension. Passive suspension is a traditional combination of springs and shock absorbers, simple in structure but unable to adjust in real time according to road conditions. Semi-active suspension allows adjustment of shock absorber damping, while active suspension goes a step further, actively applying force to adjust the suspension's state.

[0003] Active suspension specifically comprises sensors, controllers, and actuators. Sensors are responsible for detecting the vehicle's state, such as vehicle acceleration, suspension displacement, and wheel speed. The controller processes this data and then uses algorithms to calculate the force to be applied or the parameters to be adjusted. Finally, actuators (such as electro-hydraulic pumps) actually adjust the suspension.

[0004] An electro-hydraulic pump is a power device that converts electrical energy into hydraulic energy. An electric motor module drives a hydraulic pump module, converting mechanical energy into fluid pressure energy. However, the rotors in existing electric motors have relatively low structural strength, which cannot meet the structural strength requirements of the active suspension electro-hydraulic pump assembly for the pump's rotor. Utility Model Content

[0005] The purpose of this utility model is to provide an active suspension electro-hydraulic pump assembly motor and its rotor components and rotor module to solve the problem of low rotor structural strength in the prior art.

[0006] The technical solution of this utility model is as follows:

[0007] A rotor component for an active suspension electro-hydraulic pump assembly motor, comprising:

[0008] Silicon steel sheet assembly;

[0009] A plurality of magnets, wherein a plurality of magnet slots are distributed on the silicon steel sheet assembly, and the magnets are disposed in the magnet slots;

[0010] The injection molded part includes several filling portions and connecting portions located at both ends of the silicon steel sheet assembly; the silicon steel sheet assembly is provided with several injection holes, the filling portions fill the injection holes, and the two ends of the filling portions are respectively connected to the connecting portions.

[0011] Optionally, the injection hole includes a first injection hole, which is disposed between two adjacent magnetic bridges of the silicon steel sheet assembly, and the surfaces of the two adjacent magnetic bridges facing each other are portions of the inner sidewalls of the first injection hole located between the two adjacent magnetic bridges.

[0012] Optionally, the first injection hole corresponds one-to-one with the magnet groove, and the first injection hole and the corresponding magnet groove are connected.

[0013] Optionally, the injection hole includes a second injection hole, which is located between two adjacent magnet slots.

[0014] Optionally, the connecting part is provided with a plurality of dynamic balancing holes, and at least zero of the dynamic balancing holes on the connecting part are fitted with dynamic balancing components.

[0015] Optionally, the dynamic balancing holes on the connecting portion are arranged circumferentially along the rotor component.

[0016] Optionally, the intersection of two planes in the inner wall of the magnetic steel groove is recessed inward to form a clearance groove.

[0017] Based on the same concept, this utility model also provides a rotor module for an active suspension electro-hydraulic pump assembly motor, comprising:

[0018] Rotor component for active suspension electro-hydraulic pump assembly motor as described in any of the above;

[0019] A rotating shaft is provided on the silicon steel sheet assembly, and the rotating shaft passes through the rotating shaft hole and is fixedly connected to the silicon steel sheet assembly;

[0020] An induction magnet is connected to one end of the rotating shaft.

[0021] Optional, also includes:

[0022] A thrust pad is disposed at one end of the rotating shaft together with the sensing magnet, and the thrust pad is located between the end face of the rotating shaft and the sensing magnet;

[0023] A fixed sleeve is connected to the end of the rotating shaft where the sensing magnet is located, and both the thrust pad and the sensing magnet are located inside the fixed sleeve.

[0024] Optionally, the end face of the rotating shaft facing the inductive magnet is provided with an annular groove, and the fixing sleeve extends into the annular groove;

[0025] The portion of the rotating shaft facing the inductive magnet located within the annular groove cooperates with the fixing sleeve to form an accommodating space, and the thrust pad and the inductive magnet are located within the accommodating space.

[0026] Optionally, the sensing magnet is configured to be pressed and fixed by the fixing sleeve; the outer sidewall of the sensing magnet and the inner sidewall of the fixing sleeve are respectively provided with corresponding flat positions.

[0027] Optionally, the rotating shaft is a hollow shaft, and oil outlet holes are respectively provided on the portions of the rotating shaft that extend out of the rotor component at both ends, and the oil outlet holes are connected to the hollow portion of the rotating shaft.

[0028] Optionally, the rotating shaft includes:

[0029] A rotating shaft body, wherein the rotating shaft body is provided with through holes extending through both ends thereto; one end of the through hole has a mounting section, the inner diameter of the mounting section being larger than the inner diameter of the portion of the through hole connected to it;

[0030] A magnetic ring base is inserted into the through hole from one end of the mounting section, and the magnetic ring base is connected to the portion of the through hole that is connected to the mounting section. A gap exists between the inner sidewall of the mounting section and the outer sidewall of the magnetic ring base to form the annular groove.

[0031] Based on the same concept, this utility model also provides an active suspension electro-hydraulic pump assembly motor, including a rotor component for an active suspension electro-hydraulic pump assembly motor as described in any of the above claims, or including a rotor module for an active suspension electro-hydraulic pump assembly motor as described in any of the above claims.

[0032] Because of the adoption of the above technical solution, this utility model has the following advantages and positive effects compared with the prior art:

[0033] The present invention provides a motor and rotor components and rotor module for an active suspension electro-hydraulic pump assembly, which enhances the structural strength of the rotor through the use of injection-molded parts. Attached Figure Description

[0034] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention.

[0035] Figure 1 This is an exploded view of the assembly of a rotor module for an active suspension electro-hydraulic pump assembly motor according to the present invention.

[0036] Figure 2 This is an axial cross-sectional schematic diagram of a rotor module for an active suspension electro-hydraulic pump assembly motor according to the present invention.

[0037] Figure 3This is a radial cross-sectional schematic diagram of a rotor module for an active suspension electro-hydraulic pump assembly motor according to the present invention.

[0038] Figure 4 This is a structural schematic diagram of an injection molded part according to the present invention;

[0039] Figure 5 This is a schematic diagram of a silicon steel sheet assembly according to the present invention;

[0040] Figure 6 This is a partial schematic diagram of a silicon steel sheet assembly with magnets mounted on it, according to the present invention.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1: Silicon steel sheet assembly; 2: Magnet; 3: Injection molded part; 4: Shaft body; 5: Magnetic ring base; 6: Induction magnet; 7: Thrust pad; 8: Fixing sleeve; 9: Magnet groove; 10: Clearance groove; 11: First injection hole; 12: Second injection hole; 13: Magnetic bridge; 14: Channel; 15: Connecting part; 16: Filling part; 17: Dynamic balancing hole; 18: Dynamic balancing component; 19: Shaft hole; 20: Annular groove; 21: Through hole; 22: Oil outlet hole; 23: Shaft knurling; 24: Flat part (marked 24 in the figure refers to the flat part on the induction magnet). Detailed Implementation

[0043] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0044] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0045] Example 1

[0046] See Figures 1 to 6 This embodiment provides a rotor component for an active suspension electro-hydraulic pump assembly motor, including a silicon steel sheet assembly 1, several magnets 2, and an injection molded part 3.

[0047] The silicon steel sheet assembly 1 is a whole formed by stacking several silicon steel sheets. Several magnetic steel slots 9 are distributed on the silicon steel sheet assembly 1, and magnets 2 are disposed in the magnetic steel slots 9. The several magnetic steel slots 9 are evenly distributed on the silicon steel sheet assembly 1 along the circumference of the rotor, and there is a one-to-one correspondence between the magnets 2 and the magnetic steel slots 9, with each magnet 2 corresponding to one magnetic steel slot 9.

[0048] The injection molded part 3 includes several filling portions 16 and connecting portions 15 located at both ends of the silicon steel sheet assembly 1 (unless otherwise specified, both ends refer to the two ends along the axial direction of the rotor component / rotor module). The silicon steel sheet assembly 1 is provided with several injection holes, the filling portions 16 fill the injection holes, and both ends of the filling portions 16 are connected to the connecting portions 15 respectively.

[0049] Specifically, the magnet 2 can be press-fitted into the corresponding magnet groove 9 on the silicon steel sheet assembly 1 by a clearance fit, and then injection molded into an injection molded part 3, so that the injection molded part 3, the silicon steel sheet assembly 1 and the magnet 2 form a whole.

[0050] In this design, the magnet slots 9 on the silicon steel sheet assembly 1 restrict all degrees of freedom of the magnets 2 within it, except for the axial direction of the rotor component. The two ends of the silicon steel sheet assembly 1 and the two ends of the magnets 2 respectively abut against the two connecting portions 15 of the injection molded part 3, preventing the injection molded part 3, silicon steel sheet assembly 1, and magnets 2 from moving along the axial direction of the rotor component. Furthermore, by forming the injection molded part 3, any gaps between the magnet slots 9 and the magnets 2 are filled by the injection molded part 3. By forming the injection molded part 3, the injection-molded portion can be added to the weak points of the overall structure composed of the silicon steel sheet assembly 1 and the magnets 2, thereby enhancing the overall structural strength of the rotor component in this example.

[0051] Preferably, in the inner wall of the magnet slot 9, the intersection of two planes is recessed inward to form a clearance groove 10. In this embodiment, the magnet 2 is rectangular in shape. If the four sharp corners of the rectangular cross-section come into contact with the inner wall of the magnet slot 9 during installation, the magnet 2 is easily damaged. Therefore, clearance grooves 10 are provided in the parts of the magnet slot 9 corresponding to these four sharp corners (i.e., the intersection of two planes in the magnet slot 9) to avoid the sharp parts of the magnet 2, making it less likely to collide with the silicon steel sheet assembly 1, and ensuring the integrity of the magnet 2 after it is pressed into the silicon steel sheet assembly 1. After the injection molded part 3 is formed, the gaps in the clearance groove 10 will be filled by the injection molded part 3, so that it will not become a weak point in the structural strength of the rotor component.

[0052] The types of injection holes on the silicon steel sheet assembly 1 mainly include the first injection hole 11, the second injection hole 12, and the aforementioned clearance groove 10, etc.

[0053] The first injection hole 11 is located between two adjacent magnetic bridges 13 of the silicon steel sheet assembly 1, and the surfaces facing each other between the two adjacent magnetic bridges 13 are portions of the inner sidewalls of the first injection hole 11 located between these two adjacent magnetic bridges 13. The magnetic bridges 13 are generally small in width, thus becoming a structural weak point in the silicon steel sheet assembly 1 and the magnet 2 as a whole. The presence of the first injection hole 11 ensures that after injection molding to form the injection molded part 3, the first injection hole 11 is filled with the filling portion 16 of the injection molded part 3. In this way, the two side surfaces of the magnetic bridge 13 respectively come into contact with the filling portions 16 in the first injection holes 11 on both sides, and the filling portions 16 on both sides provide support for the magnetic bridge 13. The filling portions 16 in the first injection hole 11 prevent the magnetic bridge 13 from becoming a structural weak point in the rotor component, thereby allowing the width of the magnetic bridge 13 to be smaller, thus reducing the rotor leakage magnetic coefficient. In this embodiment, the width of the magnetic bridge 13 is preferably around 0.5 mm.

[0054] Specifically, in this embodiment, the first injection hole 11 corresponds one-to-one with the magnet groove 9. The first injection hole 11 is located on the radially inner side of the magnet groove 9 (unless otherwise specified, the radial inner side or radial outer side refers to the radial direction of the rotor component / rotor module), and the first injection hole 11 and the corresponding magnet groove 9 are connected. Moreover, the magnet groove 9 can be made open on the radially outer side, that is, the magnet groove 9 has a channel 14 on the radially outer sidewall that connects to the outer wall surface of the silicon steel sheet assembly 1.

[0055] The second injection hole 12 is located between two adjacent magnetic grooves 9. It is mainly used to make the silicon steel sheet assembly 1 and the injection molded part 3 fit together more tightly, and to connect the two connecting parts 15 so that the injection molded part 3 itself is inseparable.

[0056] A plurality of dynamic balancing holes 17 are provided on the connecting part 15, and at least zero dynamic balancing holes 17 on the connecting part 15 are fitted with dynamic balancing components 18. After the magnet 2 is pressed onto the silicon steel sheet assembly 1 and then injection molded to form an integral part including the silicon steel sheet assembly 1, the magnet 2 and the injection molded part 3, the dynamic balancing accuracy may not meet the national standard G2.5 requirements. In this case, the dynamic imbalance and static imbalance of the rotor can be reduced by installing dynamic balancing components 18 in the dynamic balancing holes 17 at appropriate positions, thereby meeting the national standard G2.5 requirements.

[0057] Preferably, the connecting part 15 can be configured as a disc, and the dynamic balancing holes 17 on the connecting part 15 can be evenly distributed along the circumference of the rotor component. The dynamic balancing holes 17 can be circular holes, and the dynamic balancing component 18 can be steel balls. The steel balls can be assembled into the dynamic balancing holes 17 by interference fit.

[0058] The rotor component for the active suspension electro-hydraulic pump assembly motor in this embodiment improves the structural strength of the rotor component through injection molding; moreover, the rotor dynamic balancing is performed by pressing steel balls, avoiding the foreign object problem caused by the weight removal method and avoiding the risk of traditional dynamic balancing mud falling off.

[0059] Example 2

[0060] See Figures 1 to 6 This embodiment provides a rotor module for an active suspension electro-hydraulic pump assembly motor, including the rotor components and shaft described in Embodiment 1, an induction magnet 6, a thrust pad 7, and a fixing sleeve 8.

[0061] The silicon steel sheet assembly 1 is provided with a shaft hole 19, through which a shaft passes and is fixedly connected to the silicon steel sheet assembly 1. Specifically, a shaft knurling 24 structure is machined on the shaft, and the shaft knurling 24 is interference-fitted with the shaft hole 19 on the silicon steel sheet assembly 1.

[0062] A sensing magnet 6 is connected to one end of a rotating shaft. A thrust pad 7 is located at one end of the rotating shaft along with the sensing magnet 6, and the thrust pad 7 is positioned between the end face of the rotating shaft and the sensing magnet 6. A fixing sleeve 8 is connected to the end of the rotating shaft where the sensing magnet 6 is located, and both the thrust pad 7 and the sensing magnet 6 are located within the fixing sleeve 8. The connection between the fixing sleeve 8 and the rotating shaft presses and fixes the sensing magnet 6 against the end face of the rotating shaft through the thrust pad 7. The thrust pad 7 is provided to prevent the sensing magnet 6 from being cracked during the pressing and fixing process. In this embodiment, the thrust pad 7 is a rubber pad made of rubber material.

[0063] Specifically, an annular groove 20 is provided on the end face of the rotating shaft facing the induction magnet 6, and the fixing sleeve 8 extends into the annular groove 20. The portion of the end face of the rotating shaft facing the induction magnet 6 located within the annular groove 20 cooperates with the fixing sleeve 8 to form an accommodating space, within which the thrust pad 7 and the induction magnet 6 are located. Corresponding flat positions 24 are provided on the outer side wall of the induction magnet 6 and the inner side wall of the fixing sleeve 8, respectively. During installation, the flat position 24 on the induction magnet 6 is aligned with the flat position on the fixing sleeve 8 and then inserted into the fixing sleeve 8. Then, the thrust pad 7 is inserted into the fixing sleeve 8, and the fixing sleeve 8, along with the induction magnet 6 and the thrust pad 7, is pressed onto the rotating shaft.

[0064] Furthermore, the rotating shaft is a hollow shaft, and oil outlet holes 22 are respectively provided on the portions of the rotating shaft that extend out of the rotor assembly at both ends. The oil outlet holes 22 are connected to the hollow portions of the rotating shaft. Oil can flow in the hollow portions of the rotating shaft and flow in or out through the oil outlet holes 22, thereby cooperating with other parts of the active suspension electro-hydraulic pump assembly motor to cool the rotor and stator, and at the same time lubricate the motor bearings. Specifically, in this embodiment, four oil outlet holes 22 are provided on the driving end of the rotating shaft (i.e., the end without the induction magnet 6), and three oil outlet holes 22 are provided on the non-driving end of the rotating shaft (i.e., the end with the induction magnet 6).

[0065] Furthermore, the rotating shaft includes a rotating shaft body 4 and a magnetic ring base 5. The rotating shaft body 4 has a through hole 21 extending through both ends; one end of the through hole 21 has a mounting section, the inner diameter of which is larger than the inner diameter of the portion of the through hole 21 connected to it. The magnetic ring base 5 is inserted into the through hole 21 from the mounting section end, and the magnetic ring base 5 is connected to the portion of the through hole 21 connected to the mounting section (specifically, it can be an interference fit to achieve a fixed connection). There is a gap between the inner sidewall of the mounting section and the outer sidewall of the magnetic ring base 5 to form an annular groove 20.

[0066] Specifically, the hollow portion of the shaft is mainly the through hole 21 on the shaft body 4, and the two oil outlet holes 22 on the drive end of the shaft are located on the shaft body 4. The magnetic ring base 5 has a groove at one end facing the inside of the shaft body 4, which communicates with the through hole 21 on the shaft body 4. The oil outlet hole 22 on the non-drive end of the shaft is located in the overlapping area of ​​the shaft body 4 and the magnetic ring base 5, with its external opening on the outer wall of the shaft body 4 and its internal opening on the inner wall of the groove in the magnetic ring base 5. The end face of the magnetic ring base 5 and the end face of the shaft body 4 together form the end face of the non-drive end of the shaft, and the thrust pad 7 is pressed against the end face of the magnetic ring base 5. When the fixing sleeve 8 is connected to the shaft, the fixing sleeve 8 and the outer wall of the magnetic ring base 5 are interference-fitted to achieve a fixed connection.

[0067] Preferably, in this embodiment, the magnetic ring base 5 is first pressed onto the rotating shaft body 4, and then the induction magnet 6 and the thrust pad 7 are placed into the fixing sleeve 8, and the fixing sleeve 8 is pressed onto the magnetic ring base 5. Of course, in other embodiments, the magnetic ring base 5 containing the induction magnet 6 and the thrust pad 7 can be pressed onto the magnetic ring base 5 first, and then the magnetic ring base 5 can be pressed onto the rotating shaft body 4.

[0068] Example 3

[0069] This embodiment provides an active suspension electro-hydraulic pump assembly motor, including a rotor module. The rotor module can be the rotor module for an active suspension electro-hydraulic pump assembly motor as described in Embodiment 2, or it can be a rotor module comprising the rotor components for an active suspension electro-hydraulic pump assembly motor as described in Embodiment 1 and other structures.

[0070] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. A rotor component for an active suspension electro-hydraulic pump assembly motor, characterized by, include: Silicon steel sheet assembly; A plurality of magnets, wherein a plurality of magnet slots are distributed on the silicon steel sheet assembly, and the magnets are disposed in the magnet slots; The injection molded part includes several filling portions and connecting portions located at both ends of the silicon steel sheet assembly; the silicon steel sheet assembly is provided with several injection holes, the filling portions fill the injection holes, and the two ends of the filling portions are respectively connected to the connecting portions.

2. The rotor assembly for an active suspension electro-hydraulic pump assembly motor of claim 1, wherein, The injection hole includes a first injection hole, which is located between two adjacent magnetic bridges of the silicon steel sheet assembly, and the surfaces facing each other between the two adjacent magnetic bridges are portions of the inner sidewalls of the first injection hole located between the two adjacent magnetic bridges.

3. The rotor assembly for an active suspension electro-hydraulic pump assembly motor of claim 2, wherein, The first injection hole corresponds one-to-one with the magnet groove, and the first injection hole and the corresponding magnet groove are connected.

4. The rotor assembly for an active suspension electro-hydraulic pump assembly motor of claim 1 wherein, The injection hole includes a second injection hole, which is located between two adjacent magnetic slots.

5. The rotor assembly for an active suspension electro-hydraulic pump assembly motor of claim 1 wherein, The connecting part is provided with a plurality of dynamic balancing holes, and at least zero of the dynamic balancing holes on the connecting part are equipped with dynamic balancing components.

6. The rotor assembly for an active suspension electro-hydraulic pump assembly motor of claim 5, wherein, The dynamic balancing holes on the connecting part are arranged circumferentially along the rotor component.

7. The rotor assembly for an active suspension electro-hydraulic pump assembly motor of claim 1 wherein, In the inner wall of the magnetic steel groove, the intersection of two planes is recessed inward to form a clearance groove.

8. A rotor module for an active suspension electro-hydraulic pump assembly motor, characterized by, include: The rotor component for the active suspension electro-hydraulic pump assembly motor as described in any one of claims 1 to 7; A rotating shaft is provided on the silicon steel sheet assembly, and the rotating shaft passes through the rotating shaft hole and is fixedly connected to the silicon steel sheet assembly; An induction magnet is connected to one end of the rotating shaft.

9. The rotor module for the active suspension electro-hydraulic pump assembly motor according to claim 8, characterized in that, Also includes: A thrust pad is disposed at one end of the rotating shaft together with the sensing magnet, and the thrust pad is located between the end face of the rotating shaft and the sensing magnet; A fixed sleeve is connected to the end of the rotating shaft where the sensing magnet is located, and both the thrust pad and the sensing magnet are located inside the fixed sleeve.

10. The rotor module for an active suspension electro-hydraulic pump assembly motor of claim 9, wherein, The end face of the rotating shaft facing the inductive magnet is provided with an annular groove, and the fixing sleeve extends into the annular groove; The portion of the rotating shaft facing the inductive magnet located within the annular groove cooperates with the fixing sleeve to form an accommodating space, and the thrust pad and the inductive magnet are located within the accommodating space.

11. The rotor module for an active suspension electro-hydraulic pump assembly motor of claim 9, wherein, The inductive magnet is configured to be pressed and fixed by the fixing sleeve; the outer side wall of the inductive magnet and the inner side wall of the fixing sleeve are respectively provided with corresponding flat positions.

12. The rotor module for an active suspension electro-hydraulic pump assembly motor of claim 8, wherein, The rotating shaft is a hollow shaft, and oil outlet holes are respectively provided on the portions of the rotating shaft that extend out of the rotor component at both ends. The oil outlet holes are connected to the hollow portions of the rotating shaft.

13. The rotor module for an active suspension electro-hydraulic pump assembly motor of claim 10, wherein, The rotating shaft includes: A rotating shaft body, wherein the rotating shaft body is provided with through holes extending through both ends thereto; one end of the through hole has a mounting section, the inner diameter of the mounting section being larger than the inner diameter of the portion of the through hole connected to it; A magnetic ring base is inserted into the through hole from one end of the mounting section, and the magnetic ring base is connected to the portion of the through hole that is connected to the mounting section. A gap exists between the inner sidewall of the mounting section and the outer sidewall of the magnetic ring base to form the annular groove.

14. An active suspension electro-hydraulic pump assembly motor characterized by, It includes a rotor component for an active suspension electro-hydraulic pump assembly motor as described in any one of claims 1 to 7, or a rotor module for an active suspension electro-hydraulic pump assembly motor as described in any one of claims 8 to 13.

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