Actuator, suspension assembly and vehicle

Abstract

An actuator, a suspension assembly and a vehicle. The actuator (100) comprises a first assembly (1) and a second assembly (2) that can move relative to each other in the axial direction of the actuator (100), wherein a first cavity (3) is formed between the first assembly (1) and the second assembly (2); a first guide structure (4) is provided in the first cavity (3); the inner wall of the first guide structure (4) is in sliding fit with the first assembly (1) to form a first lubricating gap; a lubricating medium is provided in the first cavity (3); and the first cavity (3) is in communication with the first lubricating gap.

Description

Actuators, suspension assembly and vehicle

[0001] This application claims priority to Chinese patent application No. 202411182068.6, filed on August 26, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of actuator technology, and more particularly to an actuator, suspension assembly, and vehicle. Background Technology

[0003] Cars encounter various road conditions while driving. To ensure the car chassis is not damaged, the distance between the chassis and the road surface needs to be adjusted according to different road conditions. This adjustment is typically achieved by extending and retracting an actuator in the vertical direction. Summary of the Invention

[0004] This disclosure provides an actuator, a suspension assembly, and a vehicle. When the actuator is used, since a lubricating medium is provided in the first cavity, when the first component and the first guide structure move relative to each other, the lubricating medium can be replenished to the first lubrication gap between the first component and the first guide structure through the first cavity, thereby ensuring that the first lubrication gap has sufficient lubricating medium, thus ensuring the lubrication effect between the first component and the first guide structure.

[0005] In a first aspect, an actuator is provided, the actuator including a first component and a second component that can move relative to each other along the actuator axis, a first cavity is formed between the first component and the second component, a first guide structure is disposed in the first cavity, the inner wall of the first guide structure slides with the first component to form a first lubrication gap, the outer wall of the first guide structure is connected to the second component, a lubricating medium is disposed in the first cavity, and the first cavity communicates with the first lubrication gap.

[0006] In some embodiments, the actuator further includes a first sealing structure and a second sealing structure disposed between the first component and the second component, the first sealing structure and the second sealing structure being spaced apart along the axial direction of the actuator, and the first component, the second component, the first sealing structure and the second sealing structure enclosing to form the first cavity.

[0007] In some embodiments, the first sealing structure is a lip sealing structure.

[0008] In some embodiments, the second sealing structure is a stylus sealing structure.

[0009] In some embodiments, the second component is provided with a channel that communicates with the first cavity, through which the lubricating medium enters the first cavity.

[0010] In some embodiments, the channel includes an inlet and an outlet, the inlet being configured to add a lubricating medium into the channel from the outside, and the outlet being configured to add a lubricating medium into the first cavity from the channel.

[0011] In some embodiments, the actuator further includes a blocking element configured to block the feed inlet.

[0012] In some embodiments, the sealing element includes a nut and a washer, the nut being threadedly connected to the feed port and the washer being disposed through the nut.

[0013] In some embodiments, the first component is a moving component and the second component is a stator component; or, the first component is a stator component and the second component is a moving component.

[0014] In some embodiments, the first component includes a rod-like body, and the second component includes a housing, the rod-like body being inserted into the housing.

[0015] In some embodiments, the housing is provided with a connection hole, and the rod-shaped body is inserted into the connection hole.

[0016] In some embodiments, the first guide structure is disposed on the inner wall of the connecting hole and surrounds the rod-shaped body to form the first lubrication gap.

[0017] In some embodiments, the first guide structure is a first bearing.

[0018] In some embodiments, the first component includes a rod-shaped body with a cavity at its insertion end, and the second component further includes a guide rod inserted into the cavity.

[0019] In some embodiments, the actuator further includes a second guide structure disposed between the guide rod and the inner wall of the cavity.

[0020] In some embodiments, the second guide structure forms a second lubrication gap by enclosing at least one of the inner wall of the rod-shaped body or the outer wall of the guide rod.

[0021] In some embodiments, the inner wall of the rod-shaped body and the guide rod enclose a second cavity, which communicates with the second lubrication gap.

[0022] In some embodiments, the second guide structure is disposed on the inner wall of the cavity.

[0023] In some embodiments, a third sealing structure is provided between the rod-shaped body and the guide rod, the third sealing structure being configured to seal the second lubrication gap.

[0024] In some embodiments, the third sealing structure includes a sealing ring fitted onto the guide rod.

[0025] In some embodiments, the third sealing structure is located on the side of the second guide structure opposite to the guide rod insertion end.

[0026] In some embodiments, the second guide structure is a second bearing.

[0027] In some embodiments, one of the first component and the second component is provided with a permanent magnet component, and the other of the first component and the second component is provided with an electromagnetic component, wherein the permanent magnet component and the electromagnetic component are spaced apart.

[0028] In some embodiments, the first component includes a rod-shaped body, the second component includes a housing, the rod-shaped body being inserted into the housing; the permanent magnet component is disposed on the inner wall of the housing, and the electromagnetic component is disposed on the outer wall of the rod-shaped body.

[0029] In a second aspect, a suspension assembly is provided, the suspension assembly including the actuator described in any of the first aspects above.

[0030] Thirdly, a vehicle is provided, the vehicle including the suspension assembly described in the second aspect above.

[0031] Compared with related technologies, the beneficial effects of this disclosure are at least as follows:

[0032] Since the actuator includes a first component and a second component that can move relative to each other along the actuator axis, the actuator can be extended or shortened along its own axis, thereby fulfilling the basic function of the actuator and thus playing a role in vibration reduction.

[0033] Furthermore, a first guide structure is provided between the first component and the second component. The inner wall of the first guide structure slides with the first component to form a first lubrication gap, and the outer wall of the first guide structure is fixedly connected to the second component. The first guide structure ensures that the movement between the first component and the second component occurs along the axial direction of the actuator. When the first component and the second component move relative to each other, the first lubrication gap can reduce the friction between the first component and its inner wall, thereby extending the service life of the first component and the first guide structure.

[0034] Furthermore, a first cavity is formed between the first component and the second component, and a lubricating medium is disposed within the first cavity, which communicates with a first lubrication gap. Thus, during the movement of the first component relative to the first guide structure, if the lubricating medium in the first lubrication gap decreases, it can be replenished through the first cavity. This ensures that the lubricant at the contact surface between the first component and the first guide structure remains sufficient during their relative sliding, guaranteeing good lubrication at the contact surface. This reduces the friction between the first component and the first guide structure at the contact surface, thereby reducing wear caused by friction and extending the service life of both components. Attached Figure Description

[0035] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0036] Figure 1 is a structural diagram of an actuator according to some embodiments;

[0037] Figure 2 is a magnified view of region A in Figure 1;

[0038] Figure 3 is a partial enlarged view of region B in Figure 1, excluding the shell.

[0039] Figure 4 is a schematic diagram of the three-dimensional structure corresponding to the actuator in Figure 1;

[0040] Figure 5 is a block diagram of a suspension assembly according to some embodiments;

[0041] Figure 6 is a block diagram of a vehicle according to some embodiments.

[0042] Reference numerals: 1-First component, 11-Ring-shaped body, 111-Cavity, 2-Second component, 21-Channel, 211-Inlet, 212-Outlet, 22-Housing shell, 221-Connecting hole, 23-Guide rod, 3-First cavity, 4-First guide structure, 5-First sealing structure, 6-Second sealing structure, 7-Blocking component, 8-Second guide structure, 9-Second cavity, 10-Third sealing structure, 101-Permanent magnet component, 102-Electromagnetic component, 100-Actuator, 1000-Suspension assembly, 2000-Vehicle. Detailed Implementation

[0043] The technical solutions of some embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0044] The terms "first," "second," etc., used in this disclosure and in the claims are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that some embodiments of this disclosure can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0045] It should be understood that the phrase "some embodiments" throughout the specification means that a particular feature, structure, or characteristic related to an embodiment is included in at least one embodiment of this disclosure. Therefore, "some embodiments" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0046] In related technologies, the actuator includes a central rod and a housing. The central rod is inserted into the housing, and a bearing is installed between the central rod and the housing. The bearing is fixedly connected to the housing. The central rod can slide relative to the bearing along its own axis. However, there is no lubricating medium between the central rod and the bearing, resulting in a relatively high coefficient of friction at the contact surface between the central rod and the bearing. This increases the frictional force between the bearing and the central rod, exacerbating wear on both, thus weakening the actuator's extension and retraction performance and reducing its service life.

[0047] To address the aforementioned problems, some embodiments of this disclosure provide an actuator, a suspension assembly, and a vehicle.

[0048] The following describes in detail, through examples of embodiments, an actuator 100, a suspension assembly, and a vehicle provided in this disclosure.

[0049] Figure 1 is a structural diagram of an actuator 100 according to some embodiments of the present disclosure, Figure 2 is a partial enlarged view of region A in Figure 1, and Figure 4 is a three-dimensional structural schematic diagram of the actuator 100 in Figure 1.

[0050] Referring to Figures 1, 2 and 4, the actuator 100 includes a first component 1 and a second component 2 that can move relative to each other along the axial direction of the actuator 100. A first cavity 3 is formed between the first component 1 and the second component 2. A first guide structure 4 is provided in the first cavity 3. The inner wall of the first guide structure 4 slides with the first component 1 to form a first lubrication gap. The outer wall of the first guide structure 4 is fixedly connected to the second component 2. A lubricating medium is provided in the first cavity 3. The first cavity 3 communicates with the first lubrication gap.

[0051] In some embodiments of this disclosure, since the actuator 100 includes a first component 1 and a second component 2 that can move relative to each other along the axial direction of the actuator 100, the actuator 100 can be extended or shortened along its own axial direction, thereby fulfilling the basic function of the actuator 100 and thus playing a role in vibration reduction.

[0052] Furthermore, a first guide structure 4 is provided between the first component 1 and the second component 2. The inner wall of the first guide structure 4 slides with the first component 1 to form a first lubrication gap, and the outer wall of the first guide structure 4 is fixedly connected to the second component 2. The first guide structure 4 ensures that the first component 1 and the second component 2 can move relative to each other along the axial direction of the actuator 100. When the first component 1 and the second component 2 move relative to each other, the first lubrication gap can reduce the friction between the inner walls of the first component 1 and the first guide structure 4, thereby extending the service life of the first component 1 and the first guide structure 4.

[0053] Furthermore, a first cavity 3 is formed between the first component 1 and the second component 2, and a lubricating medium is disposed within the first cavity 3, which communicates with a first lubrication gap. Thus, during the movement of the first component 1 relative to the first guide structure 4, if the lubricating medium in the first lubrication gap decreases, it can be replenished through the first cavity 3. This ensures that the lubricant at the contact surface between the first component 1 and the first guide structure 4 remains sufficient during their relative sliding, guaranteeing good lubrication at the contact surface. This reduces the friction between the first component 1 and the first guide structure 4 at the contact surface, thereby reducing wear caused by friction and extending the service life of both components.

[0054] It should be noted that the first guide structure 4 mentioned above can be a sliding bearing or a rolling bearing, or other types of guide mechanisms, and this disclosure does not limit it.

[0055] It should also be noted that the cross-section of the first guide structure 4 perpendicular to its own axis can be circular, rectangular, or polygonal, or other shapes, and this disclosure does not limit this. The cross-sectional shape of the corresponding first component 1 along its own axis is the same as the cross-sectional shape of the first guide structure 4.

[0056] It should also be noted that the material of the first guide structure 4 mentioned above can be metal or plastic, or other materials, and this disclosure does not limit it.

[0057] It should also be noted that the above-mentioned lubricating medium can be semi-solid grease or liquid engine oil, or other types of lubricating medium, and this disclosure does not limit it.

[0058] In some embodiments, referring to Figures 1, 2 and 4, the actuator 100 further includes a first sealing structure 5 and a second sealing structure 6 disposed between the first component 1 and the second component 2. The first sealing structure 5 and the second sealing structure 6 are spaced apart along the axial direction of the actuator 100, and the first component 1, the second component 2, the first sealing structure 5 and the second sealing structure 6 enclose to form a first cavity 3.

[0059] In some embodiments of this disclosure, along the sliding direction of the first component 1, the first sealing structure 5 is located on one side of the first guide structure 4, and the second sealing structure 6 is located on the other side of the first guide structure 4. This provides a certain sealing effect on the first lubrication gap, thereby preventing the lubricating medium from flowing out of the first lubrication gap, reducing the loss of the lubricating medium, and enhancing the lubrication effect at the contact surface between the first component 1 and the first guide structure 4. Furthermore, the first cavity 3 formed by the first component 1, the second component 2, the first sealing structure 5, and the second sealing structure 6 facilitates the delivery of the lubricating medium to the first lubrication gap. In addition, the first sealing structure 5 and the second sealing structure 6 can also prevent external dust, moisture, and other impurities from entering the first lubrication gap, ensuring the cleanliness of the first lubrication gap.

[0060] In some embodiments, referring to Figures 1, 2 and 4, the first sealing structure 5 is a lip sealing structure.

[0061] In some embodiments of this disclosure, the lip seal structure is a common type of seal, and its working principle relies on the elastic deformation and interference fit of the lip. When the lip is subjected to pressure, it undergoes elastic deformation, tightly fitting against the sealing surface to form an effective sealing barrier. Simultaneously, the interference fit of the lip compensates for unevenness and minute gaps on the sealing surface, further improving sealing performance. By optimizing the lip design, using high-performance materials, strengthening the support of the waist and root, and precisely controlling dimensions, the performance and service life of the lip seal structure can be significantly improved, thereby extending the service life of the actuator 100.

[0062] In some embodiments, referring to Figures 1, 2 and 4, the second sealing structure 6 is a step seal structure (e.g., a step seal).

[0063] In some embodiments of this disclosure, the Ster seal structure exhibits low frictional resistance, which helps reduce energy consumption and wear of the equipment. During the sealing process, it maintains a smooth movement, preventing creeping. Furthermore, the Ster seal structure requires less starting force, making the equipment start-up easier and smoother, and enabling it to withstand high-pressure environments, ensuring seal reliability. In addition, the groove structure design of the Ster seal structure is simple and reasonable, facilitating installation and maintenance.

[0064] In some embodiments, referring to Figures 1, 2 and 4, the second component 2 is provided with a channel 21, which communicates with the first cavity 3, and the lubricating medium can enter the first cavity 3 through the channel 21.

[0065] In this way, when the lubricating medium in the first cavity 3 is consumed, the lubricating medium can be injected into the channel 21. The lubricating medium can enter the first cavity 3 through the channel 21, so that the lubricating medium in the first cavity 3 is replenished. Then, the lubricating medium can be replenished to the first cavity 3 from the outside of the second component 2. Therefore, the operation of adding lubricating medium to the actuator 100 is more convenient and the efficiency of adding lubricating medium is improved.

[0066] In some embodiments, referring to Figures 1, 2 and 4, the channel 21 includes an inlet 211 and an outlet 212. The inlet 211 is used to add lubricating medium from the outside into the channel 21, and the outlet 212 is used to add lubricating medium from the channel 21 into the first cavity 3.

[0067] The inlet 211 is located on the surface of the second component 2, and the outlet 212 is located on the inner wall of the first cavity 3. This allows the lubricating medium to be smoothly added from the outside of the actuator 100 to the first cavity 3.

[0068] In some embodiments, referring to Figures 1, 2 and 4, the actuator 100 further includes a blocking member 7 for blocking the feed inlet 211.

[0069] In this way, when the actuator 100 does not require the addition of lubricating medium, the sealing member 7 is fixedly connected to the feed port 211 to seal the feed port 211, ensuring that the lubricating medium does not overflow from the feed port 211. When it is necessary to add lubricating medium to the actuator 100, the sealing member 7 can be detached from the feed port 211, lubricant can be injected into the feed port 211, and then the sealing member 7 can be fixedly connected to the feed port 211. This makes it easier to add lubricating medium.

[0070] In some embodiments, referring to Figures 1, 2 and 4, the sealing element 7 includes a nut and a washer, the nut being threadedly connected to the feed port 211, and the washer being inserted through the nut.

[0071] Compared to other fixed connection methods, threading the nut to the feed inlet 211 not only makes the two more securely fixed, but also makes it easier to separate the sealing element 7 from the feed inlet 211. In addition, the gasket passes through the nut, allowing the nut to seal the gap between the nut and the feed inlet 211, thus further enhancing the sealing performance of the sealing element 7.

[0072] In some embodiments, referring to Figures 1, 2 and 4, the first component 1 is a moving component and the second component 2 is a stator component; or the first component 1 is a stator component and the second component 2 is a moving component.

[0073] This allows the actuator to be applied to different application scenarios. When the first component 1 is fixed, the second component 2 can move relative to the first component 1, and when the second component 2 is fixed, the first component 1 can move relative to the second component 2. That is, when using the actuator 100, it can be achieved by fixing either the first component 1 or the second component 2, thus improving the applicability of the actuator 100.

[0074] In some embodiments, referring to Figures 1, 2 and 4, the first component 1 includes a rod-shaped body 11, and the second component 2 includes a housing 22, with the rod-shaped body 11 inserted into the housing 22.

[0075] In this way, the housing 22 can be fitted onto the rod-shaped body 11. When the rod-shaped body 11 moves closer to the interior of the housing 22, the actuator 100 shortens as a whole, and when the rod-shaped body 11 moves away from the interior of the housing 22, the actuator 100 extends as a whole. In addition, the overall structure formed when the rod-shaped body 11 is inserted into the housing 22 is relatively stable, which can extend the service life of the actuator 100.

[0076] It should be noted that the material of the aforementioned shell 22 may be iron, copper or alloy, or other materials, and this disclosure does not limit it.

[0077] In some embodiments, referring to Figures 1, 2 and 4, the housing 22 is provided with a connection hole 221, and the rod-shaped body 11 is inserted into the connection hole 221.

[0078] In some embodiments of this disclosure, the cross-sectional shape and size of the connecting hole 221 are the same as those of the rod-shaped body 11. Thus, the connecting hole 221 can restrict the movement of the rod-shaped body 11 in a direction perpendicular to its own axis. Furthermore, the connecting hole 221 can also guide the directional movement of the rod-shaped body 11.

[0079] In some embodiments, referring to Figures 1, 2 and 4, the first guide structure 4 is disposed on the inner wall of the connecting hole 221 and surrounds the rod-shaped body 11 to form a first lubrication gap.

[0080] Since the first guide mechanism can guide the directional movement of the rod-shaped body 11, it can also guide the rod-shaped body 11 at the connecting hole 221. In addition, since the size of the connecting hole 221 is smaller than the size of the housing 22, the size of the first lubrication gap formed by the first guide structure 4 and the rod-shaped body 11 is also smaller, thus requiring less lubricating medium and saving lubricating medium.

[0081] In some embodiments, referring to Figures 1, 2, and 4, the first guide structure 4 is a first bearing. Since the bearing itself has the function of reducing friction, when the first guide structure 4 is a bearing, it can further reduce the friction between the first component 1 and the second component 2, which is beneficial for the two to generate relative motion.

[0082] In some embodiments, referring to Figures 1, 3 and 4, the insertion end of the rod-shaped body 11 is provided with a cavity 111, and the second component 2 further includes a guide rod 23, which is inserted into the cavity 111.

[0083] The guide rod 23 extends into the cavity 111. In this way, the guide rod 23 can restrict the movement of the rod-shaped body 11 in a direction perpendicular to its own axis. In addition, the guide rod 23 can also guide the directional movement of the rod-shaped body 11 to ensure that the first component 1 and the second component 2 can generate relative movement in a specified direction.

[0084] In some embodiments, referring to Figures 1, 3 and 4, the actuator 100 further includes a second guide structure 8, which is disposed between the guide rod 23 and the inner wall of the cavity 111.

[0085] The actuator 100 adds a second guide structure 8 to the first guide structure 4. The second guide structure 8 can reduce the friction between the guide rod 23 and the inner wall of the cavity 111, thereby reducing the wear of the rod 11 caused by friction and extending the service life of the rod 11, which in turn can extend the service life of the actuator 100.

[0086] In some embodiments, referring to Figures 1, 3 and 4, the second guide structure 8 and the inner wall of the rod-shaped body 11 and / or the outer wall of the guide rod 23 form a second lubrication gap.

[0087] In this way, when the rod 11 and the guide rod 23 move relative to each other, the second lubrication gap can reduce the friction between the rod 11 and the guide rod 23, thereby further extending the service life of the rod 11 and thus further extending the service life of the actuator 100.

[0088] In some embodiments, referring to Figures 1, 3 and 4, the inner wall of the rod-shaped body 11 and the guide rod 23 enclose each other to form a second cavity 9, and the second cavity 9 communicates with the second lubrication gap.

[0089] The second cavity 9 stores a lubricating medium. Thus, during the movement of the rod 11 relative to the guide rod 23, if the lubricating medium in the second lubrication gap decreases, it can be replenished through the second cavity 9. This ensures that the lubricating medium at the contact surface between the rod 11 and the guide rod 23 remains sufficient during their relative sliding, guaranteeing good lubrication at the contact surface. This reduces the friction between the rod 11 and the guide rod 23 at the contact surface, thereby reducing wear caused by friction and further extending the service life of the rod 11 and the guide rod 23, and consequently, the service life of the actuator 100.

[0090] In some embodiments, referring to Figures 1, 3 and 4, the second guide structure 8 is fixedly disposed on the inner wall of the cavity 111.

[0091] In this way, the position of the second guide structure 8 in the actuator 100 can be fixed, so that when the rod 11 moves relative to the guide rod 23, the second guide structure 8 will not be moved along with it, thus preventing the second guide structure 8 from detaching from the rod 11 and the guide rod 23, thereby making the structure of the actuator 100 more stable and extending the service life of the actuator 100.

[0092] In some embodiments, referring to Figures 1, 3 and 4, a third sealing structure 10 is provided between the rod-shaped body 11 and the guide rod 23, and the third sealing structure 10 is used to seal the second lubrication gap.

[0093] In this way, the lubricating medium in the second lubrication gap will not flow out, ensuring that the lubricating medium in the second lubrication gap is full. This ensures good lubrication between the rod 11 and the guide rod 23, reduces the friction between the rod 11 and the guide rod 23 at the contact surface, and reduces the wear caused by friction between the rod 11 and the guide rod 23. Therefore, it can further extend the service life of the rod 11 and the guide rod 23, and thus further extend the service life of the actuator 100.

[0094] In some embodiments, referring to Figures 1, 3 and 4, the third sealing structure 10 is a sealing ring, which is sleeved on the guide rod 23.

[0095] Because the sealing ring has an annular structure, it can seal the second lubrication gap along the circumference of the guide rod 23, thereby enhancing the sealing performance of the third sealing structure 10.

[0096] It should be noted that the aforementioned sealing ring can be a rubber ring, a silicone ring, or a sealing ring made of other materials, and this disclosure does not limit it.

[0097] In some embodiments, referring to Figures 1, 3 and 4, the third sealing structure 10 is located on the side of the second guide structure 8 opposite to the insertion end of the guide rod 23.

[0098] Since the side of the second lubrication gap away from the insertion end of the guide rod 23 is open, the third sealing structure 10 is set on the side of the second guide structure 8 away from the insertion end of the guide rod 23. This can seal the second lubrication gap without affecting its lubrication effect, thereby enabling the rod-shaped body 11 and the guide rod 23 to work better.

[0099] In some embodiments, referring to Figures 1, 3, and 4, the second guide structure 8 is a second bearing. Since the bearing itself has the function of reducing friction, when the second guide structure 8 is a bearing, it can further reduce the friction between the rod-shaped body 11 and the guide rod 23, which is beneficial for the two to generate relative motion.

[0100] It should be noted that the first and second bearings mentioned above can be sliding bearings or rolling bearings, or other types of bearings with guiding function, and this disclosure does not limit them.

[0101] In some embodiments, referring to Figures 1, 3 and 4, one of the first component 1 and the second component 2 is provided with a permanent magnet component 101 and the other is provided with an electromagnetic component 102, with the permanent magnet component 101 and the electromagnetic component 102 being arranged at intervals.

[0102] In this way, when the electromagnetic component 102 is energized, the electromagnetic component 102 will generate a magnetic field. After the magnetic field interacts with the magnetic field of the electromagnetic component 102, the electromagnetic component 102 can move relative to the permanent magnet component 101, which in turn can drive the rod-shaped body 11 to move relative to the housing 22, so that the actuator 100 can extend and retract.

[0103] It should be noted that the electromagnetic component 102 mentioned above can be a coil, an electromagnet, or other types of electromagnetic component 102, and this disclosure does not limit it.

[0104] In some embodiments, referring to Figures 1, 3 and 4, the first component 1 includes a rod-shaped body 11, the second component 2 includes a housing 22, the rod-shaped body 11 is inserted into the housing 22; the permanent magnet component 101 is disposed on the inner wall of the housing 22, and the electromagnetic component 102 is disposed on the outer wall of the rod-shaped body 11.

[0105] In this way, both the permanent magnet component 101 and the electromagnetic component 102 are located inside the housing 22 and protected by the housing 22. While satisfying the electromagnetic drive, it also makes the overall structure formed by the permanent magnet component 101 and the electromagnetic component 102 more stable, thereby improving the stability of the actuator 100 and thus extending the service life of the actuator 100.

[0106] As shown in Figure 5, some embodiments of this disclosure also disclose a suspension assembly 1000, which includes any of the actuators 100 described above.

[0107] A first guide structure 4 is provided between the first component 1 and the second component 2. The inner wall of the first guide structure 4 slides with the first component 1 to form a first lubrication gap, and the outer wall of the first guide structure 4 is fixedly connected to the second component 2. The first guide structure 4 can ensure that the first component 1 and the second component 2 can move relative to each other along the axial direction of the actuator 100. When the first component 1 and the second component 2 move relative to each other, the first lubrication gap can reduce the friction between the first component 1 and the inner wall of the first component 1, thereby extending the service life of the first component 1 and the first guide structure 4, and thus extending the service life of the suspension assembly 1000.

[0108] Furthermore, a first cavity 3 is formed between the first component 1 and the second component 2, and a lubricating medium is disposed within the first cavity 3, which communicates with a first lubrication gap. Thus, during the movement of the first component 1 relative to the first guide structure 4, if the lubricating medium in the first lubrication gap decreases, it can be replenished through the first cavity 3. This ensures that the lubricant at the contact surface between the first component 1 and the first guide structure 4 remains sufficient during their relative sliding, guaranteeing good lubrication at the contact surface. This reduces the friction between the first component 1 and the first guide structure 4 at the contact surface, thereby reducing wear caused by friction and further extending the service life of the first component 1 and the first guide structure 4, thus extending the service life of the suspension assembly.

[0109] As shown in Figure 6, some embodiments of this disclosure also disclose a vehicle 2000, which includes the above-described suspension assembly 1000.

[0110] A first guide structure 4 is provided between the first component 1 and the second component 2. The inner wall of the first guide structure 4 slides with the first component 1 to form a first lubrication gap, and the outer wall of the first guide structure 4 is fixedly connected to the second component 2. The first guide structure 4 can ensure that the first component 1 and the second component 2 can move relative to each other along the axial direction of the actuator 100. When the first component 1 and the second component 2 move relative to each other, the first lubrication gap can reduce the friction between the first component 1 and the inner wall of the first component 1, thereby extending the service life of the first component 1 and the first guide structure 4, and thus extending the service life of the suspension assembly 1000, that is, extending the service life of the vehicle 2000.

[0111] Furthermore, a first cavity 3 is formed between the first component 1 and the second component 2, and a lubricating medium is disposed within the first cavity 3, which is connected to a first lubrication gap. Thus, during the movement of the first component 1 relative to the first guide structure 4, if the lubricating medium in the first lubrication gap decreases, it can be replenished through the first cavity 3. This ensures that the lubricant at the contact surface between the first component 1 and the first guide structure 4 remains sufficient during their relative sliding, guaranteeing good lubrication at the contact surface. This reduces the friction between the first component 1 and the first guide structure 4 at the contact surface, thereby reducing wear caused by friction. Therefore, it further extends the service life of the first component 1 and the first guide structure 4, and consequently extends the service life of the suspension assembly 1000, and thus further extends the service life of the vehicle 2000.

[0112] It should be noted that the aforementioned vehicles may be sedans, SUVs, or buses, or other types of vehicles, and this disclosure does not limit them.

[0113] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0114] The above description is merely a preferred embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. An actuator (100), comprising: A first component (1) and a second component (2) are movable relative to each other along the axial direction of the actuator (100). A first cavity (3) is formed between the first component (1) and the second component (2). A first guide structure (4) is provided in the first cavity (3). The inner wall of the first guide structure (4) is slidably engaged with the first component (1) to form a first lubrication gap. The outer wall of the first guide structure (4) is connected to the second component (2). A lubricating medium is provided in the first cavity (3). The first cavity (3) is in communication with the first lubrication gap.

2. The actuator (100) according to claim 1 further includes a first sealing structure (5) and a second sealing structure (6) disposed between the first component (1) and the second component (2), the first sealing structure (5) and the second sealing structure (6) being spaced apart along the axial direction of the actuator (100), and the first component (1), the second component (2), the first sealing structure (5) and the second sealing structure (6) forming the first cavity (3).

3. The actuator (100) according to claim 2, wherein, The first sealing structure (5) is a lip sealing structure.

4. The actuator (100) according to claim 2 or 3, wherein, The second sealing structure (6) is a st seal structure.

5. The actuator (100) according to any one of claims 1 to 4, wherein, The second component (2) is provided with a channel (21), which is connected to the first cavity (3), and the lubricating medium can enter the first cavity (3) through the channel (21).

6. The actuator (100) according to claim 5, wherein, The channel (21) includes an inlet (211) and an outlet (212). The inlet (211) is configured to add a lubricating medium from the outside into the channel (21), and the outlet (212) is configured to add a lubricating medium from the channel (21) into the first cavity (3).

7. The actuator (100) according to claim 6 further includes a blocking member (7) configured to block the feed inlet (211).

8. The actuator (100) according to claim 7, wherein, The sealing component (7) includes a nut and a washer, the nut being threadedly connected to the feed port (211), and the washer being inserted through the nut.

9. The actuator (100) according to any one of claims 1 to 8, wherein, The first component (1) is a moving component, and the second component (2) is a stator component; or, The first component (1) is a stator component, and the second component (2) is a mover component.

10. The actuator (100) according to claim 9, wherein, The first component (1) includes a rod-shaped body (11), and the second component (2) includes a housing (22), wherein the rod-shaped body (11) is inserted into the housing (22).

11. The actuator (100) according to claim 10, wherein, The housing (22) is provided with a connection hole (221), and the rod-shaped body (11) is inserted into the connection hole (221).

12. The actuator (100) according to claim 11, wherein, The first guide structure (4) is disposed on the inner wall of the connecting hole (221) and forms the first lubrication gap with the rod-shaped body (11).

13. The actuator (100) according to any one of claims 1-12, wherein, The first guide structure (4) is the first bearing.

14. The actuator (100) according to any one of claims 10-13, wherein, The first component (1) includes a rod-shaped body (11), and the insertion end of the rod-shaped body (11) is provided with a cavity (111). The second component (2) further includes a guide rod (23), which is inserted into the cavity (111).

15. The actuator (100) according to claim 14 further includes a second guide structure (8), the second guide structure (8) being disposed between the guide rod (23) and the inner wall of the cavity (111).

16. The actuator (100) according to claim 15, wherein, The second guide structure (8) and at least one of the inner wall of the rod-shaped body (11) or the outer wall of the guide rod (23) form a second lubrication gap.

17. The actuator (100) according to claim 16, wherein, The inner wall of the rod-shaped body (11) and the guide rod (23) form a second cavity (9), which is connected to the second lubrication gap.

18. The actuator (100) according to claim 17, wherein, The second guide structure (8) is disposed on the inner wall of the cavity (111).

19. The actuator (100) according to claim 17, wherein, A third sealing structure (10) is provided between the rod-shaped body (11) and the guide rod (23), and the third sealing structure (10) is configured to seal the second lubrication gap.

20. The actuator (100) according to claim 19, wherein, The third sealing structure (10) is a sealing ring, which is sleeved on the guide rod (23).

21. The actuator (100) according to claim 19, wherein, The third sealing structure (10) is located on the side of the second guide structure (8) opposite to the insertion end of the guide rod (23).

22. The actuator (100) according to any one of claims 15-21, wherein, The second guide structure (8) is the second bearing.

23. The actuator (100) according to any one of claims 1 to 22, wherein, One of the first component (1) and the second component (2) is provided with a permanent magnet component (101), and the other of the first component (1) and the second component (2) is provided with an electromagnetic component (102), wherein the permanent magnet component (101) and the electromagnetic component (102) are spaced apart.

24. The actuator (100) according to claim 23, wherein, The first component (1) includes a rod-shaped body (11), and the second component (2) includes a housing (22), wherein the rod-shaped body (11) is inserted into the housing (22); The permanent magnet component (101) is disposed on the inner wall of the housing (22), and the electromagnetic component (102) is disposed on the outer wall of the rod-shaped body (11).

25. A suspension assembly (1000) comprising an actuator (100) according to any one of claims 1-24.

26. A vehicle (2000) comprising a suspension assembly (1000) according to claim 25.

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