A seat adjustment device, system, method and seat, vehicle

Abstract

The present disclosure relates to the technical field of seats, in particular to a seat adjusting device, system, method, seat and carrier. The seat adjusting device comprises a base, a mounting platform above the base and connected with a seat body, a first end of the mounting platform being hinged to the base, an adjusting assembly comprising a first connecting rod and a second connecting rod, the second connecting rod comprising a first segment and a second segment connected with each other, a driving assembly in transmission connection with the adjusting assembly, the driving assembly being used to drive the adjusting assembly to move, the driving assembly comprising a driving source and a transmission assembly, the transmission assembly comprising a lead screw, a nut and a nut seat, and in a first intermediate rotating position, an extension direction of the first segment is perpendicular to an extension direction of the lead screw. The seat adjusting device can realize labor-saving adjustment of a position and posture of the seat body through the driving assembly and the adjusting assembly, realize real-time and rapid adjustment of the position and posture of the seat body according to a real-time state of the carrier, and improve the riding comfort and safety of the seat body.

Description

Technical Field

[0001] This disclosure relates to the field of seating technology, specifically to a seat adjustment device, a seat adjustment system, a seat adjustment method, and a seat or vehicle. Background Technology

[0002] Seats are widely used in vehicles such as automobiles, airplanes, and ships as passenger support components. Vehicles are usually equipped with seat adjustment devices to adjust the seat position.

[0003] In situations such as braking and impacts, changes in vehicle acceleration can cause discomfort and safety risks for passengers. Currently, seat belts are the only means of ensuring passenger safety, but they do not effectively address the discomfort. Furthermore, the fixed installation position of seat belts cannot effectively accommodate passengers of various body types. If seat position adjustment could offset some of the inertia and acceleration, it would improve both passenger comfort and safety. In related technologies, seat adjustment devices are typically manually operated by the passenger or automatically activated when the vehicle is not in motion. These devices cannot quickly respond to and reset when the aforementioned situations occur.

[0004] For example, Chinese patent application CN120552696A discloses a seat frame, a seat, and a vehicle. This solution addresses the zero-gravity adjustment function of the seat, which requires the vehicle to be stationary and is often disabled while the vehicle is in motion. The invention aims to reduce the overall weight and manufacturing cost of the seat frame. However, this solution fails to address the aforementioned technical problems. Specifically, the application uses a low-power motor to reduce cost, weight, and space occupation, failing to meet the requirements for rapid response; furthermore, its transmission structure cannot achieve rapid response and reset. (See reference...) Figure 11 and Figure 12 As shown, in this design, due to space constraints, the seat frame uses a low-power, small-sized motor as the drive unit. Simultaneously, the small angle between the transmission components of the seat frame results in a short effective lever arm and a small average torque throughout the entire working stroke. This leads to a gradual decrease in the force transmission efficiency of the entire device, preventing the seat frame from achieving rapid adjustment and return to center of the seat position. (Refer to...) Figure 13 As shown, when the seat frame raises the seat to its maximum angle, the two hinged transmission components are almost on the same straight line, causing the transmission components to be near the dead point. The driving force of the active component on the driven component is along the extension direction of the driven component, becoming the tension and compression of the driven component. The effective driving force perpendicular to the driven component is very small, making it difficult to configure the driven component to rotate, thus preventing the seat frame from quickly returning the seat to its correct position.

[0005] In summary, the seat frames in the relevant technologies are not suitable for vehicle driving scenarios, and the seat frame adjusts the seat slowly. Therefore, when a vehicle experiences a large change in speed within a short period of time, such as braking or a collision, the seat frames in the relevant technologies cannot adjust the seat position in real time and quickly according to the dynamic position changes of the vehicle during driving, resulting in low seat comfort and safety. Summary of the Invention

[0006] To overcome the problems existing in the related art, an exemplary embodiment of this disclosure provides a seat adjustment device in a first aspect for adjusting the position of a seat body. The seat adjustment device includes: a base; a mounting platform located above the base and for connecting to the seat body, a first end of the mounting platform being hinged to the base; an adjustment assembly including: a first connecting rod hinged to a second end of the mounting platform, wherein the first end and the second end are opposite ends of the mounting platform; a second connecting rod including a first segment and a second segment connected together, the first segment being hinged to the base and the second segment being hinged to the first connecting rod; and a drive assembly for driving the adjustment assembly. The adjustment component moves to push or pull the second end of the mounting platform, thereby causing the mounting platform to rotate around the first end. The driving component includes: a driving source for providing power to drive the adjustment component; and a transmission component for transmission connection with the driving source and the adjustment component. The transmission component includes: a lead screw, a nut, and a nut seat. The lead screw is connected to the driving source, the nut is sleeved on the lead screw, and the nut seat is connected to the nut and the first segment respectively. Within the rotatable range of the first segment, the first segment has a first intermediate rotational position. At the first intermediate rotational position, the extension direction of the first segment is perpendicular to the extension direction of the lead screw.

[0007] In some embodiments, the base is provided with a first mounting base, and the drive source is disposed on the first mounting base.

[0008] In some embodiments, the drive source is hinged to the first mounting base.

[0009] In some embodiments, the effective hinge length L2 of the first link is greater than the effective hinge length L1 of the second segment.

[0010] In some embodiments, the first segment is hinged to the nut seat.

[0011] In some embodiments, when the mounting platform is in the target raised position, the angle between the first link and the mounting platform is greater than or equal to 60°.

[0012] In some embodiments, within the rotatable range of the second segment, the second segment has a second intermediate rotational position, in which the extension direction of the second segment is perpendicular to the extension direction of the first link.

[0013] In some embodiments, there are two first connecting rods, with the two first connecting rods located on opposite sides of the nut seat.

[0014] In some embodiments, the installation platform is provided with a second mounting base, and the drive source is disposed on the second mounting base.

[0015] In some embodiments, the drive source is located on the side of the adjustment component closer to the first end; or, the drive source is located on the side of the adjustment component farther from the first end.

[0016] In some embodiments, the first end corresponds to the front side of the seat body, or the first end corresponds to the rear side of the seat body, or the first end corresponds to the left side of the seat body, or the first end corresponds to the right side of the seat body.

[0017] Secondly, this disclosure also provides a seat adjustment system, the seat adjustment system comprising: a seat adjustment device as described in the first aspect; and a controller, communicatively connected to the drive component, for adjusting the working state of the drive component.

[0018] In some embodiments, the seat adjustment system further includes an acceleration sensor, communicatively connected to the controller, for detecting acceleration parameters and sending them to the controller, so that the controller adjusts the operating state of the drive component based on the acceleration parameters.

[0019] Thirdly, this disclosure also provides a seat adjustment method applied to the seat adjustment system in the second aspect, the seat adjustment method comprising: adjusting the position of the seat by means of the seat adjustment device based on the acceleration state of the vehicle, wherein the acceleration state is determined by one or more of the drive system, braking system, and acceleration sensor of the seat adjustment system of the vehicle.

[0020] Fourthly, this disclosure also provides a seat, the seat comprising: a seat body; and a seat adjustment device as described in the first aspect, connected to the seat body, for adjusting the position of the seat body.

[0021] Fifthly, this disclosure also provides a vehicle that includes a seat as described in the fourth aspect.

[0022] The technical solutions provided by the embodiments of this disclosure can include at least the following beneficial effects: The seat adjustment device can achieve effortless adjustment of the seat body's posture through the drive component and adjustment component, thereby reducing the time required for seat body posture adjustment. It enables real-time and rapid adjustment of the seat body's posture according to the vehicle's real-time status, thereby achieving real-time and rapid posture compensation for passengers in vehicle driving scenarios, and improving the seat body's riding comfort and safety. Attached Figure Description

[0023] This disclosure can be better understood by describing exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, in which: Figure 1 This is a structural schematic diagram of a seat according to exemplary embodiments of the present disclosure; Figure 2 This is a structural schematic diagram of a seat according to exemplary embodiments of the present disclosure; Figure 3 This is a schematic diagram of the structure of a seat adjustment device according to exemplary embodiments of the present disclosure; Figure 4 This is a structural schematic diagram of a seat according to exemplary embodiments of the present disclosure; Figure 5 This is a structural schematic diagram of a seat according to exemplary embodiments of the present disclosure; Figure 6 This is a structural schematic diagram of a seat according to exemplary embodiments of the present disclosure; Figure 7 This is a structural schematic diagram of a seat according to exemplary embodiments of the present disclosure; Figure 8 This is a partial schematic diagram of a seat adjustment device according to exemplary embodiments of the present disclosure; Figure 9 This is a partial schematic diagram of a seat adjustment device according to exemplary embodiments of the present disclosure; Figure 10 This is a partial schematic diagram of a seat adjustment device according to exemplary embodiments of the present disclosure; Figure 11 This is a partial structural schematic diagram of a seat frame shown in related technologies; Figure 12 This is a partial structural schematic diagram of a seat frame shown in related technologies; Figure 13 This is a structural schematic diagram of a seat frame shown in related technologies; Figure 14 This is a schematic diagram illustrating the connection between a first link and a second segment according to an exemplary embodiment of the present disclosure.

[0024] Figure label: 10. Base; 11. First mounting base; 1a. First hinge; 20. Mounting platform; 2a. First end; 2b. Second end; 2c. Second hinge; 21. Second mounting base; 30. Adjustment assembly; 31. First link; 32. Second link; 321. First stage; 322. Second stage; 40. Drive assembly; 41. Drive source; 42. Transmission assembly; 421. Lead screw; 422. Nut; 423. Nut seat; 50. Shaft; 100. Seat body. Detailed Implementation

[0025] The following describes specific embodiments of this disclosure. It should be noted that, in order to maintain brevity, this specification cannot provide a detailed description of all features of the actual embodiments. It should be understood that, in the actual implementation of any embodiment, just as in any engineering or design project, various specific decisions are often made to achieve the developer's specific goals and to meet system-related or business-related constraints, and this can change from one embodiment to another. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content of this disclosure, changes in design, manufacturing, or production based on the technical content disclosed herein are merely conventional technical means and should not be construed as insufficient content of this disclosure.

[0026] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms “a” or “one,” etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising,” “including,” etc., mean that the element or object preceding “comprising” or “including” encompasses the elements or objects listed following “comprising” or “including” and their equivalents, and do not exclude other elements or objects. The terms “connected,” “linked,” etc., are not limited to physical or mechanical connections, nor are they limited to direct or indirect connections.

[0027] To solve the above technical problems, refer to Figures 1 to 3As shown, this disclosure provides a seat adjustment device that can be used to adjust the position of the seat body 100. The seat adjustment device may include a base 10, a mounting platform 20, an adjustment component 30, and a drive component 40.

[0028] The base 10, located at the bottom of the entire device, provides a mounting area for other components in the seat adjustment mechanism and is used to secure other parts of the seat adjustment mechanism. The base 10 can be connected to other devices or components in the vehicle.

[0029] The connection between the base 10 and other devices or components in the vehicle can be a detachable connection method such as threaded fastening or snap-fit ​​connection, or a non-detachable connection method such as glue application or welding, or it can be formed in the vehicle through processes such as integral molding. The specific connection can be matched and set according to factors such as the usage scenario of the seat adjustment device and the connection strength requirements of different vehicles for the base 10 and other devices or components.

[0030] The mounting platform 20 can be located above the base 10 and is used to connect with the seat body 100. The first end 2a of the mounting platform 20 is hinged to the base 10, which means that the mounting platform 20 can drive the seat body 100 to rotate relative to the base 10 about the hinge position of the first end 2a and the base 10.

[0031] The adjustment component 30 is hinged at both ends to the base 10 and the second end 2b of the mounting platform 20, respectively, wherein the first end 2a and the second end 2b are opposite ends of the mounting platform 20.

[0032] In this embodiment of the disclosure, the first end 2a may refer to a proximal continuous region including one end (first end) of the mounting platform 20, that is, a region extending from one end of the mounting platform 20 toward the middle of the mounting platform 20. The second end 2b may refer to a proximal continuous region near the other end (second end) of the mounting platform 20, that is, a region extending from the other end of the mounting platform 20 toward the middle of the mounting platform 20. The first end and the second end are opposite to each other, and the first end 2a and the second end 2b correspond to two opposite ends of the mounting platform 20.

[0033] Reference Figure 3 As shown, the adjustment assembly 30 may include a first link 31 and a second link 32. The first link 31 is hinged to the second end 2b of the mounting platform 20. The second link 32 may include a first segment 321 and a second segment 322 connected together. The first segment 321 is connected to the nut seat 423 and hinged to the base 10. The second segment 322 is hinged to the first link 31.

[0034] The nut seat 423 moves linearly along the axial direction of the lead screw 421, causing the first segment 321 of the second connecting rod 32 to swing around the hinge point of the base 10. Then the first segment 321 drives the second segment 322 to move, and the second segment 322 transmits the motion to the second end 2b of the mounting platform 20 through the first connecting rod 31.

[0035] The two ends of the first link 31 are hinged to the second section 322 and the mounting platform 20 respectively, which can adapt to the angle changes between the components and prevent motion interference. The first section 321 is hinged to the base 10 to form a lever structure, which can effectively transmit and amplify the thrust output by the drive source 41 through the lead screw 421, nut 422 and nut seat 423, so that the position of the seat body 100 can still be smoothly adjusted under a large load.

[0036] The first link 31 and the second link 32 constitute a linkage mechanism. The first segment 321 of the second link 32 acts as a drive arm and is hinged to the base 10. The second segment 322 is connected to the second end 2b of the mounting platform 20 through the first link 31. When the nut seat 423 moves, the first segment 321 rotates around the hinge point of the base 10, and the second segment 322 drives the first link 31 to move, thereby pushing or pulling the second end 2b of the mounting platform 20. This linkage mechanism can effectively convert the linear motion of the nut seat 423 into the rotational motion of the mounting platform 20. It has a simple structure and direct force transmission. The second link 32 adopts a structure in which the first segment 321 and the second segment 322 are connected, which facilitates the formation of a reasonable lever arm and angle relationship, optimizes the force transmission efficiency and force amplification effect, improves the response rate, and can quickly adjust in the event of sudden braking or collision of the vehicle to ensure the comfort and safety of the passengers. It also improves the load-bearing capacity and adjustment stability of the mounting platform 20, and facilitates its arrangement in the bottom space of the seat body 100, avoiding interference with other components.

[0037] The drive assembly 40 is connected to the adjustment assembly 30 in a transmission manner. The drive assembly 40 is used to drive the adjustment assembly 30 to move, so that the adjustment assembly 30 pushes or pulls the second end 2b of the mounting platform 20, thereby causing the mounting platform 20 to rotate around the first end 2a. The drive assembly 40 may include a drive source 41 and a transmission assembly 42, which is connected to the drive source 41 and the adjustment assembly 30 in a transmission manner.

[0038] Reference Figure 2 As shown, the drive assembly 40 may include a drive source 41 and a transmission assembly 42, with the transmission assembly 42 being connected to the drive source 41 and the adjustment assembly 30 respectively.

[0039] The drive source 41 provides the power to drive the adjustment component 30, and the transmission component 42 transmits the power output from the drive source 41 to the adjustment component 30. By setting the transmission component 42, the drive source 41 and the adjustment component 30 can be adapted in terms of motion form, motion speed, torque magnitude, etc., for example, converting the rotational motion into a form suitable for the motion of the adjustment component 30, or realizing deceleration and torque increase.

[0040] The transmission component 42 is connected between the drive source 41 and the adjustment component 30. It can transmit and convert motion, so that the power of the drive source 41 can be applied to the adjustment component 30 more effectively, thereby driving the mounting platform 20 to rotate and realizing the position adjustment of the seat body 100.

[0041] By employing the embodiments of this disclosure, the direct output requirements of the drive source 41 can be reduced by setting the transmission component 42, thereby improving the transmission accuracy and adjustment smoothness between the drive component 40 and the adjustment component 30. This results in a smoother and more stable posture adjustment process for the seat body 100, reducing jerking sensations during posture adjustment and improving the passenger's riding experience. Simultaneously, the drive source 41 can be flexibly arranged through the transmission component 42 to adapt to different bottom spaces and installation requirements of the seat body 100.

[0042] Reference Figure 3 As shown, the transmission assembly 42 may include a lead screw 421, a nut 422 and a nut seat 423. The lead screw 421 is connected to the drive source 41, the nut 422 is sleeved on the lead screw 421, and the nut seat 423 is connected to the nut 422 and the adjusting assembly 30 respectively.

[0043] The transmission assembly 42 is composed of a lead screw 421, a nut 422 and a nut seat 423. It can convert the rotational motion output by the drive source 41 (e.g., a servo motor) into linear motion of the nut 422 and the nut seat 423 along the lead screw 421, thereby driving the adjustment assembly 30 to move.

[0044] The drive source 41 drives the lead screw 421 to rotate. The nut 422, due to its threaded engagement with the lead screw 421, moves axially along the lead screw 421. The nut seat 423 moves linearly along with the nut 422. The nut seat 423 is connected to the adjustment assembly 30, transmitting the linear motion to the adjustment assembly 30, causing the adjustment assembly 30 to push or pull the second end 2b of the mounting platform 20, thereby causing the mounting platform 20 to rotate around the first end 2a. Because there is a stable correspondence between the rotation angle of the lead screw 421 and the linear displacement of the nut seat 423, and because the lead screw 421 and the nut 422 have a self-locking characteristic, precise and controllable adjustment of the seat body 100's position and posture can be achieved, improving the adjustment accuracy of the seat adjustment device on the seat body 100.

[0045] The transmission scheme of lead screw 421 and nut 422 has the advantages of high transmission accuracy, smooth operation, low noise and good self-locking. It can control the position of mounting platform 20 and seat body 100 more accurately, and can maintain the current position after the drive source 41 stops working. This prevents the mounting platform 20 and seat body 100 from falling back or shifting due to gravity, vibration or occupant load, improves the safety and reliability of the seat adjustment device, prevents the seat body 100 from accidentally resetting or shifting and changing the passenger's body position, reduces the risk of passenger collision injury, and improves passenger riding comfort.

[0046] Meanwhile, the compact structure of the lead screw 421 and nut 422 facilitates its arrangement within the limited space at the bottom of the seat body 100. Furthermore, the transmission of the lead screw 421 and nut 422 by the drive source 41 (e.g., a motor) enables a fast and stable response, ensuring response speed and improving seating comfort or ensuring the safety of passengers when the position of the seat body 100 needs to be quickly adjusted.

[0047] The first end 2a of the mounting platform 20 is hinged to the base 10, and the mounting platform 20 has a degree of freedom to rotate around the first end 2a. The second end 2b of the mounting platform 20 is connected to the base 10 through the adjusting component 30. When the driving component 40 drives the adjusting component 30 to move, the adjusting component 30 applies a pushing or pulling force to the second end 2b of the mounting platform 20, causing the second end 2b to swing around the first end 2a, thereby changing the tilt angle of the mounting platform 20 relative to the base 10. At the same time, the mounting platform 20 is connected to the seat body 100. Therefore, the rotation of the mounting platform 20 causes the seat body 100 to undergo corresponding positional changes, realizing the positional adjustment of the seat body 100.

[0048] According to this embodiment, the first end 2a of the mounting platform 20 is hinged to the base 10 to form a rotation fulcrum. The adjustment component 30 is connected between the base 10 and the second end 2b of the mounting platform 20, and the adjustment component 30 is driven by the drive component 40 to move. This allows the mounting platform 20 to rotate relative to the base 10 around the first end 2a, thereby adjusting the position and posture of the seat body 100 connected to the mounting platform 20, realizing position and posture compensation for passengers in the vehicle driving scenario, and improving the passenger riding experience.

[0049] In some embodiments, refer to Figures 8 to 10 As shown, within the rotatable range of the first segment 321, the first segment 321 has a first intermediate rotational position. At the first intermediate rotational position, the extension direction of the first segment 321 and the extension direction of the lead screw 421 can be perpendicular to each other.

[0050] The first segment 321 is hinged to the base 10. When the first segment 321 is driven by the nut seat 423, the magnitude of the torque of its rotation around the hinge point of the base 10 depends on the lever arm. When the extension direction of the first segment 321 is perpendicular to the extension direction of the lead screw 421, the lever arm of the first segment 321 relative to the hinge point of the base 10 is larger, and the torque generated by the driving force is larger, which can more easily drive the second segment 322 and the first connecting rod 31 to move.

[0051] When the first segment 321 is perpendicular to the extension direction of the lead screw 421, the movement direction of the nut seat 423 is perpendicular to the extension direction of the first segment 321. The lever arm of the first segment 321 relative to the hinge point of the base 10 reaches a large value, and the driving force required to drive the first segment 321 to rotate relative to the hinge point of the base 10 is small, resulting in high transmission efficiency. Therefore, during the rotation of the first segment 321 around the hinge point of the base 10, there is a position perpendicular to the extension direction of the lead screw 421, which makes the swing range of the first segment 321 cover the working area with a large lever arm. The rotatable range of the first segment 321 includes this vertical position, so that the linkage mechanism is in a state of efficient force transmission during the working stroke. This is conducive to maximizing the average torque of the linkage mechanism (i.e., the first link 31 and the second link 32) during the working stroke, improving the transmission efficiency and load-bearing capacity of the nut seat 423 and the first segment 321, optimizing the utilization of driving force, reducing the requirement for the output torque of the drive source 41, improving the effort-saving degree and smoothness of the adjustment process, and improving the response speed of the adjustment.

[0052] The seat adjustment device provided in this embodiment uses the first end 2a of the mounting platform 20 as the hinge fulcrum and the second end 2b of the mounting platform 20 as the force application point. The force application point and the hinge fulcrum are located at opposite ends of the mounting platform 20, and the lever arm is relatively long, making the adjustment process more effortless and stable.

[0053] First, the structure of the lead screw 421 and nut 422 working together has the function of speed reduction and torque increase, so that the drive source 41 only needs to output a small torque, which can be converted into a large thrust through the mechanism of lead screw 421 and nut 422, thereby driving the nut seat 423 to move. Alternatively, if the output torque of the drive source 41 remains unchanged, it is beneficial to increase the thrust after conversion by lead screw 421 and nut 422, thereby improving the response speed of nut seat 423.

[0054] Secondly, the force transmission areas of the drive assembly 40 and the adjustment assembly 30, and the first segment 321 of the lead screw 421 and the second connecting rod 32 having a first intermediate rotation position with mutually perpendicular extension directions during the movement stroke, indicate that the swing range of the first segment 321 covers the working area with a large lever arm during the rotation process of the first segment 321 relative to the hinge point of the base 10. The rotatable range of the first segment 321 includes this vertical position, so that the drive assembly 40 and the adjustment assembly 30 are in a state of efficient force transmission during the working stroke.

[0055] Then, the first segment 321 and the second segment 322 in the second link 32 can further increase the driving force transmitted from the nut seat 423 to the first segment 321 through leverage. At the same time, the cooperation between the second segment 322 and the first link 31 can efficiently transmit the force output by the second link 32 to the first link 31, reducing ineffective force components.

[0056] Since the seat adjustment device can adjust the position of the seat body 100 with effortless adjustment through the drive component 40 and the adjustment component 30, the response time of the seat body 100 adjustment can be reduced. It can quickly adjust the position of the seat body 100 according to the real-time status of the vehicle, thereby offsetting or partially offsetting the instability caused by the vehicle's bumps, turns, acceleration, deceleration, etc., and improving the stability of the seat body 100.

[0057] In some embodiments, the braking or collision duration of the vehicle is 3 to 5 seconds, and the position adjustment time of the seat body 100 by the seat adjustment device is ≤ 3 seconds, thereby realizing timely and rapid reverse compensation for changes in passenger position and improving the riding comfort and safety of the seat body 100.

[0058] In some scenarios, during vehicle braking or even sudden braking, the seat adjustment device can recline the seat body 100 to improve passenger comfort. In other scenarios, during a collision, adjusting the seat body 100's position using the seat adjustment device can reduce some of the impact force on the occupants, ensuring their safety. Furthermore, the seat adjustment device has a simple overall structure, fewer parts, and lower cost. The drive component 40 indirectly drives the mounting platform 20 via the adjustment component 30, offering good layout flexibility and allowing for easy adjustment and placement within the limited space at the bottom of the seat body 100.

[0059] In some embodiments, when the adjustment assembly 30 is not driven, it remains in its lowest position, holding the mounting platform 20 in a normal position, typically a basically horizontal position, such that the seat body 100 is in a neutral position. When the adjustment assembly 30 is driven, the second end 2b of the mounting platform 20 is raised, causing one side of the seat body 100 to rise, thereby counteracting some of the acceleration in a certain direction.

[0060] For example, in some embodiments, the first end 2a can be located at the rear of the seat body 100, that is, the adjustment component 30 is hinged to the front of the mounting platform 20. When the front of the mounting platform 20 is raised by the adjustment component 30, the seat body 100 can tilt backward towards the rear of the vehicle. The tilting angle counteracts the forward inertial force generated by the occupant during sudden braking or even a frontal collision, ensuring the stability and safety of the occupant. Furthermore, after sudden braking, the drive component 40 and the adjustment component 30 can be reset, allowing the mounting platform 20 to drive the seat body back to its initial horizontal and stable state.

[0061] In other embodiments, the adjustment component 30, when not driven, remains in its highest position, holding the mounting platform 20 such that the seat body 100 is in a normal position, typically substantially horizontal. When the adjustment component 30 is driven, the height of the second end 2b of the mounting platform 20 is lowered, causing one side of the seat body 100 to be lowered, relative to the height of the first end 2a being higher than the height of the second end 2b, thereby offsetting some of the acceleration in a certain direction.

[0062] For example, in order to achieve the same purpose of offsetting braking or frontal collisions, the first end 2a can be located on the front side of the seat body 100, that is, the adjustment component 30 is hinged to the rear side of the mounting platform 20. By lowering the rear side of the mounting platform 20 through the adjustment component 30, the seat body 100 can also be tilted backward as a whole, thereby offsetting the forward inertial force caused by braking or frontal collisions. At the same time, under the gravity of the seat body 100 and the mounting platform 20, the adjustment component 30 lowers at a relatively fast speed, which can reduce the adjustment response time of the seat adjustment device.

[0063] In some other embodiments, the adjustment component 30, when not driven, remains in a neutral position, holding the mounting platform 20 such that the seat body 100 is in a conventional position, typically a substantially horizontal position. The adjustment component 30 can be used to raise or lower the second end 2b of the mounting platform 20, driven by the drive component 40. By raising or lowering the height of the second end 2b of the mounting platform 20 using the adjustment component 30, a seat adjustment device can counteract or partially counteract accelerations from different directions according to the current state of the vehicle, thereby improving the comfort and safety of the occupants.

[0064] In some embodiments, refer to Figure 3As shown, the base 10 may have at least two first hinge parts 1a, and the mounting platform 20 may have a corresponding number of second hinge parts 2c. Both the first hinge parts 1a and the second hinge parts 2c have mounting through holes. The seat adjustment device may also include a rotating shaft 50. The rotating shaft 50 is fitted into the mounting through holes of the first hinge parts 1a and the second hinge parts 2c, thereby realizing the hinge between the base 10 and the mounting platform 20. This allows the mounting platform 20 to be hinged to the base 10 and rotate smoothly and synchronously, with fewer parts and lower cost.

[0065] In other embodiments, the pivot 50 may also be independently provided corresponding to the first hinge portion 1a and the second hinge portion 2c, which facilitates installation while enabling the mounting platform 20 to be hinged to the base 10.

[0066] In some other embodiments, a spherical bearing is provided between the base 10 and the mounting platform 20. That is, the base 10 is provided with an inner ring with a spherical outer diameter and the mounting platform 20 is provided with an outer ring with a spherical inner diameter, or the base 10 is provided with an outer ring with a spherical inner diameter and the mounting platform 20 is provided with an inner ring with a spherical outer diameter. By adapting the inner and outer rings, the base 10 and the mounting platform 20 are hinged, thereby enabling more degrees of freedom in the position and posture adjustment of the mounting platform 20 and the base 10 in some scenarios.

[0067] The specific hinge scheme between the first end 2a of the mounting platform 20 and the base 10 can be matched and selected according to parameters such as the difficulty of the installation process and the target gap between the mounting platform 20 and the base 10.

[0068] The specific component type of the drive source 41 disclosed herein can be a rotary motor component, such as a stepper motor, servo motor, or brushless DC motor; it can also be a fluid drive component, such as a hydraulic motor, pneumatic motor, or rotary cylinder; or it can be a linear drive component, such as a cylinder / hydraulic cylinder, electromagnetic actuator, or linear motor. In the following description, the embodiments of this disclosure will be illustrated using a rotary motor component as an example.

[0069] In some other embodiments, the transmission assembly 42 may also include gears and racks, and the power transmission between the drive source 41 and the adjustment assembly 30 is realized through the intermediate structure of gears and racks, which can make reasonable use of space in some cases.

[0070] In some other embodiments, the drive assembly 40 may include an electric cylinder, which is connected to the adjustment assembly 30 to output power. This saves on components, reduces costs, and saves space.

[0071] In some embodiments, refer to Figure 3As shown, the base 10 may be provided with a first mounting base 11, which is connected to the drive source 41, and the drive source 41 is located on the first mounting base 11.

[0072] The base 10 serves as a relatively fixed support component, on which a first mounting seat 11 can be mounted. The first mounting seat 11 can be fixed to the base 10 by means of bolts or welding, or it can be integrally mounted with the base 10. Figure 3 As shown, the first mounting base 11 can be formed as a mounting plate extending towards the mounting platform 20 (i.e., upwards), thereby facilitating the fixing of components such as the drive source 41. The drive source 41 can be mounted on the first mounting base 11, so that the position of the drive source 41 remains stable relative to the base 10. Through the embodiments of this disclosure, the relative displacement between the drive source 41 and the transmission assembly 42, and between the drive source 41 and the adjustment assembly 30 can be reduced. The relative position between the output end of the drive source 41 and the transmission assembly 42 and the adjustment assembly 30 is more determined, and the power transmission path is clear. This is beneficial to improving the transmission accuracy and structural rigidity between the drive source 41 and the transmission assembly 42, and between the transmission assembly 42 and the adjustment assembly 30, ensuring the stability of the transmission chain, reducing connection loosening and noise caused by vibration, and improving transmission reliability and service life.

[0073] Meanwhile, the drive source 41 is integrated into the base 10, so the drive source 41 does not need to move according to the position adjustment of the seat body 100, which facilitates the overall modular installation and layout of the seat adjustment device.

[0074] In some embodiments, the connection between the first mounting base 11 and the base 10 can be made with a rounded transition to avoid stress concentration at the connection between the first mounting base 11 and the base 10.

[0075] In some embodiments, refer to Figure 3 As shown, the drive source 41 can be hinged to the first mounting base 11.

[0076] During the movement of the adjustment component 30, the relative angle between the transmission component 42 and the drive source 41 may change. The drive source 41 and the base 10 are connected by a hinge to achieve a floating connection, which can solve the angle deviation generated in the transmission chain, thereby avoiding uneven force on the components and deformation, or jamming, jerking and other adverse phenomena during the movement.

[0077] By using the embodiments of this disclosure, the drive source 41 is hinged to the first mounting base 11, and the drive source 41 can swing slightly around the hinge point. That is, the drive source 41 can generate a certain degree of rotation or swing freedom relative to the base 10 during operation, adaptively compensating for assembly errors and angular changes in the transmission component 42 and the adjustment component 30 during their movement, making the power transmission more stable and reliable, avoiding additional bending moments and stress concentrations due to rigid connections, reducing jamming, abnormal noise and wear of the drive source 41, and improving transmission smoothness and durability.

[0078] In some embodiments, refer to Figure 3 As shown, the first mounting base 11 may have two first mounting portions, each with a through hole. The two opposite outer walls of the drive source 41 each have an axial protrusion, which is located within the through hole of the first mounting portion, thereby achieving a floating connection between the drive source 41 and the first mounting base 11.

[0079] The lead screw 421 can pass through the area of ​​the first mounting base 11 between the two first mounting parts and is connected to the output end of the drive source 41.

[0080] In some embodiments, the edges of the first mounting portion may be rounded to reduce the sharpness of the edges and decrease the possibility of the mounting portion scratching or puncturing assembly personnel, maintenance personnel, or passengers.

[0081] In some embodiments, the two first mounting parts are symmetrically distributed about the center line of the base 10, and the center line of the drive source 41 coincides with the center line of the base 10. This is beneficial for the positioning and installation by the assemblers, and also for the inspection of the assembly position of the drive source 41 by the quality inspectors.

[0082] In some other embodiments, the middle position of the two first mounting parts is offset from the center line of the base 10, so that space can be used more reasonably with other components. Specifically, it can be matched and set according to the position of the drive source 41 relative to the seat body 100.

[0083] In some embodiments, refer to Figure 6 As shown, the effective hinge length of the second segment 322 is defined as L1, and the effective hinge length of the first link 31 is defined as L2. The thrust / pull force applied by the drive assembly 40 acts on the hinge node of the link, utilizing the lever amplification effect and torque gain of the double-link mechanism formed by the two links during the expansion and folding process. By adjusting the length ratio of L1 to L2, such as L2>L1, the motor can convert a smaller horizontal thrust into a larger vertical lifting force when pushing the lead screw nut, achieving the effect of increasing torque and saving effort, thus allowing the selection of a smaller and more compact motor.

[0084] In some embodiments, refer to Figure 2 and Figure 3 As shown, the first segment 321 can be hinged to the nut seat 423. When the nut seat 423 moves linearly along the axis of the lead screw 421, the first segment 321 of the second connecting rod 32 rotates around the hinge point of the base 10. The relative angle between the connection point of the first segment 321 and the nut seat 423 will change continuously, so that the angle change between the first segment 321 and the nut seat 423 will not be constrained, avoiding the situation of poor transmission or even jamming between the nut seat 423 and the second connecting rod 32, making the position adjustment process of the seat body 100 smoother and less strenuous.

[0085] The first segment 321 is hinged to the nut seat 423, allowing the first segment 321 to rotate freely relative to the nut seat 423 during linear movement with the nut seat 423 and rotation around the hinge point of the base 10. This adapts to changes in the angle between the two, ensuring that the linkage mechanism's kinematic chain has a high degree of freedom, avoiding additional bending moments and stress concentrations at the connection point, reducing wear and noise, improving motion flexibility and service life, and making the transmission process between the nut seat 423 and the second link 32 more stable and reliable.

[0086] In some embodiments, the sidewall of the nut seat 423 facing the first segment 321 and the sidewall of the first segment 321 facing the nut seat 423 may both have through holes or blind holes. A rotating shaft element is provided between the nut seat 423 and the first segment 321, with both ends of the rotating shaft element located in the through holes or blind holes of the nut seat 423 and the first segment 321, respectively, to achieve a floating connection between the nut seat 423 and the first segment 321.

[0087] In some embodiments, the nut seat 423 may have an axial protrusion on the sidewall facing the first segment 321, and the sidewall of the first segment 321 may have a through hole or a blind hole. The axial protrusion is located in the through hole or blind hole of the sidewall of the first segment 321, thereby realizing a floating connection between the nut seat 423 and the first segment 321.

[0088] In some embodiments, the sidewall of the first segment 321 facing the nut seat 423 may have an axial protrusion, and the sidewall of the nut seat 423 may have a through hole or a blind hole. The axial protrusion is located in the through hole or blind hole of the sidewall of the nut seat 423, thereby realizing the floating connection between the nut seat 423 and the first segment 321.

[0089] In some embodiments, refer to Figure 2As shown, when the mounting platform 20 is in the target raised position, the angle between the first link 31 and the mounting platform 20 can be greater than or equal to 60°. The target raised position can be the maximum position where the second end 2b of the mounting platform 20 is raised relative to the base 10 under the action of the adjusting component 30. The force exerted by the first link 31 on the mounting platform 20 can be decomposed into an effective component perpendicular to the mounting platform 20 and a component along the extension direction of the mounting platform 20. The component perpendicular to the mounting platform 20 is used to overcome the gravity of the mounting platform 20 and the seat body 100, thus raising the seat body 100. The component along the mounting platform 20 will generate a lateral pushing and pulling tendency. The larger the angle between the first link 31 and the mounting platform 20, the larger the proportion of the effective vertical component and the smaller the proportion of the horizontal component. When the mounting platform 20 is in the target lifting position, the angle between the first link 31 and the mounting platform 20 is greater than or equal to 60°. This makes the direction of the force exerted by the first link 31 on the mounting platform 20 more perpendicular to the mounting platform 20. This results in a larger effective vertical component of the force used to lift the seat body 100 and a smaller horizontal component. This increases the average torque of the first link 31 within its rotational stroke relative to the mounting platform 20, which is beneficial for improving driving efficiency and support stability. It also reduces the lateral load on the hinged position of the first link 31 and the second end 2b of the mounting platform 20, improves the structural stress state, and enhances the smoothness of the adjustment process and the structural durability. In some examples, the angle can be adjusted by varying the length of the second segment 322 and the length of the first link 31, as well as their length ratio, thereby achieving a labor-saving and compact structure.

[0090] In some embodiments, refer to Figure 1 and Figure 2 As shown, within the rotatable range of the second segment 322, the second segment 322 has a second intermediate rotational position. In the second intermediate rotational position, the extension direction of the second segment 322 can be perpendicular to the extension direction of the first connecting rod 31.

[0091] The second segment 322 is hinged to the first link 31. When the second segment 322 moves, it pushes the first link 31 to move through the hinge point. When the second segment 322 and the first link 31 are perpendicular to each other, the force applied by the second segment 322 to the first link 31 can be largely converted into effective motion of the first link 31, resulting in better force transmission efficiency, reducing the loss of driving force and additional bending moment, and improving the stability and load-bearing capacity of the adjusting assembly 30. The rotatable range of the second segment 322 includes this perpendicular position, so that the working stroke of the linkage mechanism is in a high-efficiency range. During the adjustable stroke, it can be in a high-efficiency force transmission state, which is conducive to maximizing the average torque of the working stroke of the linkage mechanism (i.e., the first link 31 and the second link 32), reducing the energy consumption and driving burden of the adjusting assembly 30.

[0092] In some embodiments, refer to Figures 8 to 10 As shown, the second segment 322 and the first connecting rod 31 are hinged, and the angle θ between the second segment 322 and the first connecting rod 31 changes during the movement of the adjusting assembly 30. When the second segment 322 and the first connecting rod 31 are perpendicular to each other, refer to... Figure 9 As shown, at this time, the power arm in the transmission structure between the second segment 322 and the first link 31 is at its maximum, that is, the force applied by the second segment 322 to the first link 31 can be converted into the effective movement of the first link 31 to the maximum extent.

[0093] Therefore, during the pitch adjustment stroke of the seat body 100, the change value of the angle θ between the second segment 322 and the first link 31 is α, then referring to... Figure 8 As shown, when the second segment 322 and the first link 31 are in the first boundary position (e.g., the initial position), the included angle θ between the second segment 322 and the first link 31 can be 90° - α / 2; (Refer to...) Figure 10 As shown, when the second segment 322 and the first link 31 are in the second boundary position (e.g., the termination position), the included angle θ between the second segment 322 and the first link 31 can be 90°+α / 2. This allows the rotational range of the second segment 322 to include... Figure 9 The vertical position shown, and the range of the angle θ between the second segment 322 and the first link 31 is symmetrical about 90°, that is, the actual working stroke of the transmission mechanism of the second segment 322 and the first link 31 is in the transmission range with high efficiency, which reduces the loss of driving force and additional bending moment, and thus helps to maximize the average torque of the working stroke of the adjustment component 30, and reduce the energy consumption and driving burden of the adjustment component 30.

[0094] In some embodiments, during the pitch adjustment stroke of the seat body 100, the change value of the included angle θ between the second segment 322 and the first link 31 can be 40°. Therefore, when the second segment 322 and the first link 31 are in a certain position... Figure 8 When the corresponding first boundary position is reached, the included angle θ between the second segment 322 and the first connecting rod 31 can be 70°; when the second segment 322 and the first connecting rod 31 are at the first boundary position, the included angle θ between them can be 70°. Figure 10 At the corresponding second boundary position, the included angle θ between the second segment 322 and the first link 31 can be 110°.

[0095] In some embodiments, refer to Figure 14As shown, one end of the second segment 322 is hinged to one end of the first link 31, the other end of the first link 31 is hinged to the mounting platform 20, and the other end of the second segment 322 is hinged to the base 10. When the extension direction of the second segment 322 is perpendicular to the extension direction of the first link 31, the driving force of the active member (i.e., the second segment 322) on the driven member (i.e., the first link 31) is along the direction of the first link 31. The direction of the driving force is the same as the direction of movement of the mounting platform 20, which allows the second segment 322 to quickly drive the first link 31 and drive the mounting platform 20 and the seat body 100 to quickly return to the upright position from the raised position.

[0096] In some embodiments, refer to Figure 3 As shown, there can be two first connecting rods 31, with the two first connecting rods 31 located on both sides of the nut seat 423.

[0097] The second end 2b of the mounting platform 20 is connected to the base 10 through the first link 31 and the second link 32, which improves the load-bearing capacity of the adjustment component 30. In addition, when the seat body 100 is relatively wide, resulting in a wider mounting platform 20, it can avoid adverse phenomena such as tilting, swaying or excessive local stress of the mounting platform 20.

[0098] In this embodiment, the two first connecting rods 31 are respectively arranged on both sides of the nut seat 423, forming a double-sided support and force transmission structure. This allows the driving force to be transmitted to two positions on the second end 2b of the mounting platform 20 via two transmission paths, resulting in a more balanced force distribution on the second end 2b of the mounting platform 20. This makes the rotation of the mounting platform 20 around the first end 2a more stable, reducing deformation and vibration caused by uneven force distribution and extending its service life. The double-sided arrangement of the first connecting rods 31 improves the structural rigidity and smoothness of the adjustment assembly 30, reduces wear and noise at the hinge points, and enhances the load-bearing capacity and reliability of the seat adjustment device.

[0099] In some embodiments, the two first connecting rods 31 can be symmetrically distributed on both sides of the nut seat 423. The symmetrical arrangement of the two first connecting rods 31 on both sides of the nut seat 423 can evenly distribute the driving force to the left and right sides of the second end 2b of the mounting platform 20, making the rotation of the mounting platform 20 around the first end 2a more stable, reducing deformation and vibration caused by uneven force, and extending the service life of the adjustment assembly 30. The symmetrical arrangement of the first connecting rods 31 on both sides can also improve the structural rigidity and movement stability of the adjustment assembly 30, reduce wear and noise at the hinge points, and improve the load-bearing capacity and reliability of the seat adjustment device.

[0100] In some embodiments, refer to Figure 4 and Figure 5As shown, the installation platform 20 is provided with a second mounting base 21, which is connected to the drive source 41. The drive source 41 can be located on the second mounting base 21.

[0101] The mounting platform 20 serves as a movable component supporting the seat body 100. A second mounting base 21 is provided on the platform to offer a stable mounting point for the drive source 41. After the drive source 41 is connected to the second mounting base 21, it can move with the mounting platform 20 and maintain a defined relative position. Furthermore, the mounting position of the drive source 41 can be flexibly selected based on the shape of the seat body 100 and the available space in the vehicle.

[0102] A second mounting base 21 is provided on the mounting platform 20 for connecting the drive source 41, so that the drive source 41 can be installed on the mounting platform 20 and form a positioning and support with the mounting platform 20. In this way, the space occupied by the drive source 41 on the base 10 can be reduced, and the drive source 41 can be arranged in a position that moves with the mounting platform 20 to adapt to different seat structures and installation space requirements. At the same time, it is conducive to modular design, improving assembly convenience and structural compactness.

[0103] In some embodiments, refer to Figure 4 As shown, the drive source 41 is hinged to the second mounting base 21. During the movement of the adjusting component 30, the relative angle between the transmission component 42 and the drive source 41 may change. The hinged floating connection between the drive source 41 and the mounting platform 20 can reduce the angular deviation generated in the transmission chain, ensure transmission, and avoid uneven force on components leading to deformation or jamming and stuttering during movement. In this embodiment, by hinged to the second mounting base 21, the drive source 41 can swing slightly around the hinge point. That is, the drive source 41 can have a certain degree of rotation or swing freedom relative to the mounting platform 20 during operation, adaptively compensating for assembly errors and angular changes in the transmission component 42 and the adjusting component 30 during movement. This makes power transmission smoother and more reliable, avoids additional bending moments and stress concentrations due to rigid connections, reduces jamming, abnormal noise, and wear of the drive source 41, and improves transmission smoothness and durability.

[0104] In some embodiments, refer to Figure 4 As shown, the second mounting base 21 may have two second mounting portions, each with a through hole. The two opposite outer walls of the drive source 41 each have shaft-shaped protrusions located within the through holes of the second mounting portions, thereby achieving a floating connection between the drive source 41 and the second mounting base 21. The lead screw 421 passes through the area of ​​the second mounting base 21 between the two second mounting portions and is connected to the output end of the drive source 41.

[0105] In some embodiments, the edges of the second mounting portion are rounded to reduce the sharpness of the edges and decrease the possibility of the mounting portion scratching or puncturing assembly personnel, maintenance personnel, or passengers.

[0106] In some embodiments, the two second mounting parts are symmetrically distributed about the center line of the mounting platform 20, and the center line of the drive source 41 coincides with the center line of the mounting platform 20. This is beneficial for the positioning and installation by the assembly personnel, and also for the quality inspectors to detect the assembly position of the drive source 41.

[0107] In some other embodiments, the middle position of the two second mounting parts is offset from the center line of the mounting platform 20, which can be matched according to the position of the drive source 41 relative to the seat body 100.

[0108] In some embodiments, refer to Figure 4 and Figure 5 As shown, the adjustment assembly 30 may include a first connecting rod 31 and a second connecting rod 32. The first connecting rod 31 is hinged to the base 10, and the second connecting rod 32 includes a first segment and a second segment connected together. The first segment is connected to a nut seat 423 and hinged to the mounting platform 20, while the second segment is hinged to the first connecting rod 31. The nut seat 423 moves linearly along the axial direction of the lead screw 421, causing the first segment of the second connecting rod 32 to swing around the hinge point of the mounting platform 20. This first segment then drives the second segment to move, and the second segment transmits the motion to the base 10 through the first connecting rod 31. Since the base 10 is relatively fixed, the reaction force of the base 10 on the mounting platform 20 achieves the rotation of the mounting platform 20. The two ends of the first connecting rod 31 are hinged to the second segment and the base 10 respectively, which can accommodate changes in the angle between the components and prevent motion interference. The first section is hinged to the mounting platform 20 to form a lever structure, which can effectively transmit and amplify the thrust output by the drive source 41 through the lead screw 421, nut 422 and nut seat 423, so that the position of the seat body 100 can still be smoothly adjusted under a large load.

[0109] The first link 31 and the second link 32 constitute a linkage mechanism. The first segment of the second link 32 serves as a drive arm and is hinged to the mounting platform 20, while the second segment is connected to the base 10 via the first link 31. When the nut seat 423 moves, the first segment rotates around the hinge point of the mounting platform 20, and the second segment drives the first link 31 to move. The reaction force of the base 10 on the mounting platform 20 pushes or pulls the second end 2b of the mounting platform 20. This linkage mechanism can effectively convert the linear motion of the nut seat 423 into the rotational motion of the mounting platform 20, with a simple structure and direct force transmission. The second link 32 adopts a structure where the first and second segments are connected, which facilitates the formation of a reasonable lever arm and angle relationship, optimizes the force transmission efficiency and force amplification effect, improves the load-bearing capacity and adjustment stability of the mounting platform 20, and facilitates its arrangement in the bottom space of the seat body 100, avoiding interference with other components.

[0110] In some embodiments, refer to Figure 4 and Figure 5 As shown, the first segment can be hinged to the nut seat 423. When the nut seat 423 moves linearly along the axis of the lead screw 421, the first segment of the second connecting rod 32 rotates around the hinge point of the mounting platform 20. The relative angle between the first segment and the connection point of the nut seat 423 will continuously change, reducing the constraints on angle changes and preventing the transmission between the nut seat 423 and the second connecting rod 32 from being unsmooth or even jammed. The hinged connection between the first segment and the nut seat 423 allows the first segment to rotate freely relative to the nut seat 423 during linear movement with the nut seat 423 and rotation around the hinge point of the mounting platform 20, adapting to the angle changes between the two, ensuring that the linkage mechanism's kinematic chain has a high degree of freedom, avoiding additional bending moments and stress concentrations at the connection point, reducing wear and noise, improving motion flexibility and service life, and making the transmission process between the nut seat 423 and the second connecting rod 32 more stable and reliable.

[0111] In some embodiments, the sidewall of the nut seat 423 facing the first segment and the sidewall of the first segment facing the nut seat 423 both have through holes or blind holes. A rotating shaft element is provided between the nut seat 423 and the first segment, with both ends of the rotating shaft element located in the through holes or blind holes of the nut seat 423 and the first segment, respectively, so as to realize the floating connection between the nut seat 423 and the first segment.

[0112] In some embodiments, the nut seat 423 has an axial protrusion on the sidewall facing the first segment, and the sidewall of the first segment has a through hole or a blind hole. The axial protrusion is located in the through hole or blind hole of the sidewall of the first segment, thereby realizing a floating connection between the nut seat 423 and the first segment.

[0113] In some embodiments, the sidewall of the first segment facing the nut seat 423 has an axial protrusion, and the sidewall of the nut seat 423 has a through hole or a blind hole. The axial protrusion is located in the through hole or blind hole of the sidewall of the nut seat 423, thereby realizing the floating connection between the nut seat 423 and the first segment.

[0114] In some embodiments, refer to Figure 5As shown, when the mounting platform 20 is in the target raised position, the angle between the first link 31 and the base 10 is greater than or equal to 60°. The force exerted by the first link 31 on the base 10 can be decomposed into an effective component perpendicular to the base 10 and a component along the extension direction of the base 10. The reaction force of the component perpendicular to the base 10 is used to overcome the gravity of the mounting platform 20 and the seat body 100, thereby raising the seat body 100. The component along the base 10 will generate a lateral pushing and pulling tendency. The larger the angle between the first link 31 and the base 10, the larger the proportion of the effective component in the vertical direction and the smaller the proportion of the component in the horizontal direction. When the mounting platform 20 is in the target lifting position, the angle between the first link 31 and the base 10 is ≥60°, which makes the direction of the force exerted by the first link 31 on the base 10 more perpendicular to the base 10. The effective vertical component of the force used to lift the seat body 100 is larger, and the horizontal component is smaller. This is beneficial to improve driving efficiency and support stability, reduce the lateral load on the hinge position of the first link 31 and the base 10, improve the stress state of the structure, and improve the smoothness of the adjustment process and the durability of the structure.

[0115] In some embodiments, refer to Figure 4 and Figure 5 As shown, within the rotatable range of the first segment, the first segment has a first intermediate rotational position. At this position, the extension direction of the first segment is perpendicular to the extension direction of the lead screw 421. The first segment is hinged to the mounting platform 20. When the first segment is subjected to the driving force transmitted by the nut seat 423, the magnitude of the torque of its rotation around the hinge point of the mounting platform 20 depends on the lever arm. When the first segment is perpendicular to the extension direction of the lead screw 421, the lever arm of the first segment relative to the hinge point of the mounting platform 20 is larger, resulting in a larger torque generated by the driving force, which can more easily drive the second segment and the first connecting rod 31. When the first segment is perpendicular to the extension direction of the lead screw 421, the direction of movement of the nut seat 423 is perpendicular to the extension direction of the first segment. The lever arm of the first segment relative to the hinge point of the mounting platform 20 reaches a larger value, requiring less driving force to drive the first segment to rotate, resulting in higher transmission efficiency. Therefore, during the rotation of the first segment around the hinge point of the mounting platform 20, there is a position perpendicular to the extension direction of the lead screw 421, which allows the swing range of the first segment to cover the working area with a large lever arm. The rotatable range of the first segment includes this vertical position, which is beneficial to keep the linkage mechanism in an efficient force transmission state during the working stroke, improve the transmission efficiency and load-bearing capacity between the nut seat 423 and the first segment, optimize the utilization of driving force, reduce the requirements for the output torque of the drive source 41, and improve the effort-saving degree and smoothness of the adjustment process.

[0116] In some embodiments, within the rotatable range of the second segment, the second segment has a second intermediate rotational position, in which the extension direction of the second segment is perpendicular to the extension direction of the first link 31.

[0117] The second segment is hinged to the first link 31, and its movement pushes the first link 31 through the hinge point. When the second segment is perpendicular to the first link 31, the force applied by the second segment to the first link 31 can be largely converted into effective motion of the first link 31, resulting in better force transmission efficiency, reducing driving force loss and additional bending moment, and improving the stability and load-bearing capacity of the adjusting assembly 30. The rotatable range of the second segment includes this perpendicular position, indicating that the working stroke of the linkage mechanism is in a high-efficiency range. Within the adjustable stroke, it can maintain a highly efficient force transmission state, reducing the energy consumption and driving burden of the adjusting assembly 30.

[0118] In some embodiments, refer to Figure 6 As shown, the drive source 41 can be located on the side of the adjustment assembly 30 closer to the first end 2a. On the one hand, this can shorten the relative distance between the drive source 41 and the hinge area of ​​the first end 2a, facilitating effective utilization of the space located below the mounting platform 20 and the base 10. On the other hand, as... Figure 6 As shown, the drive source 41 drives the adjustment component 30, and drives the mounting platform 20 to rise to the target raised position (e.g., Figure 6 In the lifted state), the first link 31 of the adjustment component 30, that is, the link hinged to the second end 2b of the mounting platform 20, can have a closer vertical angle with the mounting platform 20, so that the actual lever arm of the adjustment component 30 relative to the hinge point of the mounting platform 20 and the base 10 is longer, thereby achieving the effect of more effort-saving and faster response speed.

[0119] In other embodiments, reference is made to Figure 1 As shown, the drive source 41 can be located on the side of the adjustment assembly 30 away from the first end 2a, so that the drive source 41 avoids the installation space below the mounting platform 20, providing sufficient space for the arrangement of other components required for the seat body 100.

[0120] According to the embodiments of this disclosure, the drive source 41 can be located on the side of the adjustment component 30 closer to the first end 2a or away from the first end 2a, depending on the actual installation space and structural layout, thereby improving the installation adaptability and versatility of the seat adjustment device under different vehicle models and seat structures. Both arrangements enable the drive source 41 to drive the adjustment component 30 via the transmission component 42, and can be optimized based on factors such as center of gravity distribution, transmission path length, and maintenance convenience, taking into account both the structural compactness and transmission efficiency of the seat adjustment device.

[0121] In some embodiments, the first end 2a corresponds to the front side of the seat body 100, and the second end 2b is located at the rear side of the seat body 100. The fore-aft tilt angle of the seat body 100 can be adjusted by raising and lowering the second end 2b of the mounting platform 20 via the drive assembly 40. For example, this is suitable for compensating for the impact of acceleration on passenger posture during straight-line acceleration or deceleration of the vehicle. In some cases, the entire seat body 100 can be tilted backward by lowering the rear side of the seat body 100, thereby offsetting or partially offsetting forward inertia and ensuring the comfort and safety of the occupants in the event of braking or a frontal collision.

[0122] Reference Figure 1 As shown, the first end 2a corresponds to the rear side of the seat body 100, and the second end 2b is located on the front side of the seat body 100. It can adjust the height of the front edge of the seat body 100 and the seat cushion tilt angle. For example, it is suitable for compensating for the impact of acceleration on the passenger's posture in scenarios of vehicle acceleration or deceleration, thereby improving the comfort and safety of passengers.

[0123] Reference Figure 7 As shown, the first end 2a corresponds to the left or right side of the seat body 100, and the second end 2b is located on the opposite side. The drive assembly 40 can adjust the left and right tilt angle of the seat body 100 by raising and lowering the second end 2b of the mounting platform 20. For example, it is suitable for compensating for the impact of lateral acceleration on the passenger's posture when the vehicle is driving on a curve.

[0124] Therefore, the hinge end (i.e., the first end 2a) of the mounting platform 20 can correspond to the front, rear, left, or right side of the seat body 100 according to actual needs. By adjusting the rotation of the mounting platform 20 around the first end 2a, various posture adjustments such as forward tilting, backward tilting, or left and right tilting of the seat body 100 can be achieved. This embodiment of the present disclosure has high versatility and flexibility, and can meet the requirements of different seat types, different seating needs, and different application scenarios.

[0125] Based on the same inventive concept, this disclosure also provides a seat adjustment system, which may include the seat adjustment device and controller in any of the foregoing embodiments. The controller is communicatively connected to the drive component 40 and is used to adjust the working state of the drive component 40.

[0126] The controller communicates with the drive assembly 40 and sends control signals to the drive assembly 40; the drive assembly 40 drives the adjustment assembly 30 to move, causing the mounting platform 20 to rotate around the first end 2a to the target angle. By controlling the working state of the drive assembly 40 through the controller, manual operation can be avoided, improving the response speed and accuracy of the seat body 100's posture adjustment.

[0127] In some embodiments, the acceleration or deceleration time of the vehicle is typically 3 to 5 seconds, and the seat body 100 position adjustment time is ≤ 3 seconds.

[0128] Using the embodiments of this disclosure, the controller can achieve automated and intelligent control of the drive component 40, such as controlling the start / stop, forward / reverse rotation, speed, rotation angle, or working time of the drive source 41, thereby precisely adjusting the position and posture of the seat body 100. The controller can automatically adjust the position and posture of the seat body 100 according to a preset program or external commands, improving the ease of use and adjustment accuracy of the seat adjustment device, and facilitating integration with other control systems of the vehicle.

[0129] In some embodiments, the seat adjustment system may further include an acceleration sensor, which is communicatively connected to the controller to detect acceleration parameters and send them to the controller so that the controller adjusts the operating state of the drive components based on the acceleration parameters.

[0130] The acceleration parameters detected by the accelerometer can include the vehicle's longitudinal, lateral, or vertical acceleration, as well as the angular acceleration of steering, and are sent to the controller. The controller, based on a preset control strategy—for example, adjusting the fore-and-aft tilt angle of the seat body 100 when a large longitudinal acceleration is detected, and adjusting the left-and-right tilt angle of the seat body 100 when a large lateral acceleration is detected—sends control commands to the drive assembly 40, driving the adjustment assembly 30 to move, so that the position of the seat body 100 adapts to the vehicle's driving state, providing more reasonable support for the occupants.

[0131] In some embodiments, the acceleration sensor may be disposed on the seat adjustment device, for example, fixedly connected to the mounting platform 20 or the base 10. In other embodiments, the acceleration sensor may be fixedly connected to the seat body 100. In still other embodiments, the acceleration sensor may be disposed at other locations on the vehicle.

[0132] Accelerometers detect the vehicle's acceleration and posture changes in real time and transmit the acceleration signals to the controller. The controller can automatically determine the vehicle's acceleration, braking, steering, and other driving conditions based on the acceleration signals and adjust the seat posture accordingly. This gives the seat body 100 an adaptive posture adjustment capability, improving the occupant's support, comfort, and safety during dynamic driving, and reducing occupant slippage and discomfort caused by inertial forces.

[0133] In some embodiments, the controller can obtain acceleration parameters through the vehicle's drive system and braking system. For example, in a vehicle, the controller can obtain the vehicle's throttle and brake signals to obtain acceleration parameters.

[0134] Based on the same inventive concept, this disclosure also provides a seat adjustment method, applied to the seat adjustment system in any of the foregoing embodiments. The seat adjustment method may include: adjusting the position and posture of the seat body 100 by means of a seat adjustment device based on the acceleration state of the vehicle, wherein the acceleration state can be determined by one or more of the vehicle's drive system, braking system, and acceleration sensors of the seat adjustment system.

[0135] During vehicle operation, after acquiring the vehicle's acceleration parameters, the current driving condition can be determined based on the magnitude and direction of the acceleration, thereby determining the target posture required for the seat body 100. The controller controls the working state of the drive assembly 40, and drives the adjustment assembly 30 to rotate the mounting platform 20 around the first end 2a, so that the seat body 100 reaches the target posture. For example, when longitudinal acceleration is detected, the inertial tendency of the occupant can be counteracted by adjusting the fore-and-aft tilt angle of the mounting platform 20; when lateral acceleration is detected, the left-and-right tilt angle of the mounting platform 20 can be adjusted to provide lateral support, thereby improving the riding experience.

[0136] By employing the embodiments of this disclosure, the position and posture of the seat body 100 are dynamically adjusted according to the vehicle's acceleration parameters, enabling real-time adaptation to the vehicle's driving state and improving the seating comfort and safety of the seat body 100. Since the adjustment process uses the vehicle's acceleration parameters as the control basis, it has the advantages of fast response, high targeting, and high automation, effectively reducing discomfort for occupants during acceleration, braking, and steering.

[0137] Based on the same inventive concept, this disclosure also provides a seat, which includes a seat body 100 and a seat adjustment device in any of the foregoing embodiments. The seat body 100 is connected to the mounting platform 20, and the seat adjustment device is used to adjust the position of the seat body 100.

[0138] The seat body 100 can be installed on the mounting platform 20. The first end 2a of the mounting platform 20 is hinged to the base 10. The drive component 40 pushes or pulls the second end 2b of the mounting platform 20 through the adjustment component 30, causing the mounting platform 20 to rotate around the first end 2a, thereby driving the seat body 100 to change its posture. Thus, the seat body 100 has a posture adjustment function.

[0139] In this embodiment, the first end 2a of the mounting platform 20 is hinged to the base 10, and the mounting platform 20 has a degree of freedom to rotate around the first end 2a. The second end 2b of the mounting platform 20 is connected to the base 10 through an adjusting assembly 30. When the driving assembly 40 drives the adjusting assembly 30 to move, the adjusting assembly 30 applies a pushing or pulling force to the second end 2b of the mounting platform 20, causing the second end 2b to swing around the first end 2a, thereby changing the tilt angle of the mounting platform 20 relative to the base 10. Simultaneously, the mounting platform 20 is connected to the seat body 100; therefore, the rotation of the mounting platform 20 causes a corresponding change in the posture of the seat body 100, realizing the posture adjustment of the seat body 100.

[0140] The first end 2a of the mounting platform 20 is hinged to the base 10 to form a rotation fulcrum. The adjustment component 30 is connected between the base 10 and the second end 2b of the mounting platform 20, and is driven by the drive component 40 to move. This allows the mounting platform 20 to rotate relative to the base 10 around the first end 2a, thereby adjusting the position and posture of the seat body 100 connected to the mounting platform 20. This achieves position and posture compensation for passengers in vehicle driving scenarios, improving passenger comfort and riding experience.

[0141] Based on the same inventive concept, this disclosure also provides a vehicle, which includes the seat in any of the foregoing embodiments.

[0142] The seats in this vehicle feature posture adjustment capabilities, allowing the seat position to be adjusted according to passenger needs and driving conditions to accommodate different body types, seating habits, or driving conditions, thereby improving passenger comfort, safety, and the overall driving experience. Furthermore, the seat adjustment mechanism has a simple structure and flexible layout, facilitating installation within the vehicle and reducing manufacturing costs and assembly complexity.

[0143] This disclosure does not specifically limit the type of vehicle, such as: automobile, train, ship, airplane, etc.

[0144] This disclosure does not specifically limit the type of vehicle, such as: sedan, bus, truck, sport utility vehicle (SUV), etc. The vehicle can be a gasoline vehicle, a pure electric vehicle (BEV, or EV), or a hybrid electric vehicle (HEV), such as: range-extended, plug-in hybrid, etc.

[0145] This disclosure uses specific terms to describe embodiments of the present disclosure. Terms such as "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of the present disclosure. Therefore, it should be emphasized and noted that references to "an embodiment," "one embodiment," or "an alternative embodiment" in different locations throughout this specification do not necessarily refer to the same embodiment. Furthermore, certain features, structures, or characteristics in one or more embodiments of the present disclosure can be appropriately combined.

[0146] In the context of this disclosure, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0147] In this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0148] In this disclosure, terms such as "first" and "second" are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another and do not indicate a specific order or degree of importance. In fact, expressions such as "first" and "second" are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0149] In this disclosure, the orientations or positional relationships indicated by terms such as "center," "longitudinal," "lateral," "front," "rear," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the purpose of facilitating the description of this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation.

[0150] In this disclosure, terms such as "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between the two components; they can refer to a direct connection between two components without the presence of other components, or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0151] Similarly, it should be noted that, in order to simplify the description of this disclosure and thus aid in the understanding of one or more embodiments, the foregoing description of embodiments of this disclosure may sometimes combine multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of this disclosure requires more features than the features claimed. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0152] The basic concepts have been described above. It is obvious that the above disclosure is merely illustrative and does not constitute a limitation of this disclosure. Although not explicitly stated herein, various modifications, improvements, and corrections may be made to this disclosure by those skilled in the art. Such modifications, improvements, and corrections are suggested in this disclosure and therefore remain within the spirit and scope of the embodiments of this disclosure.

Claims

1. A seat adjustment device for adjusting the position and posture of a seat body, characterized in that, The seat adjustment device includes: Base; An installation platform is located above the base and is used to connect to the seat body. The first end of the installation platform is hinged to the base. Adjustment components, including: The first connecting rod is hinged to the second end of the mounting platform, wherein the first end and the second end are opposite ends of the mounting platform; The second link includes a first segment and a second segment connected together, the first segment being hinged to the base and the second segment being hinged to the first link; A driving component, used to drive the adjustment component to move, so that the adjustment component pushes or pulls the second end of the mounting platform, thereby causing the mounting platform to rotate around the first end, the driving component comprising: A drive source, used to provide power to drive the movement of the regulating component; A transmission assembly is connected to the drive source and the adjustment assembly. The transmission assembly includes a lead screw, a nut, and a nut seat. The lead screw is connected to the drive source, the nut is sleeved on the lead screw, and the nut seat is connected to the nut and the first segment respectively. Within the rotatable range of the first segment, the first segment has a first intermediate rotational position, and at the first intermediate rotational position, the extension direction of the first segment is perpendicular to the extension direction of the lead screw.

2. The seat adjustment device according to claim 1, characterized in that, The effective hinge length L2 of the first link is greater than the effective hinge length L1 of the second segment.

3. The seat adjustment device according to claim 1, characterized in that, The first segment is hinged to the nut seat.

4. The seat adjustment device according to claim 1, characterized in that, When the mounting platform is in the target raised position, the angle between the first link and the mounting platform is greater than or equal to 60°.

5. The seat adjustment device according to claim 1, characterized in that, Within the rotatable range of the second segment, the second segment has a second intermediate rotational position, in which the extension direction of the second segment is perpendicular to the extension direction of the first connecting rod.

6. The seat adjustment device according to claim 1, characterized in that, There are two first connecting rods, and the two first connecting rods are located on both sides of the nut seat.

7. The seat adjustment device according to claim 1, characterized in that, The base is provided with a first mounting seat, and the drive source is located on the first mounting seat.

8. The seat adjustment device according to claim 7, characterized in that, The drive source is hinged to the first mounting base.

9. The seat adjustment device according to claim 1, characterized in that, The installation platform is provided with a second mounting base, and the drive source is located on the second mounting base.

10. The seat adjustment device according to any one of claims 1-9, characterized in that, The drive source is located on the side of the adjustment component closer to the first end; or, The drive source is located on the side of the adjustment component away from the first end.

11. The seat adjustment device according to claim 1, characterized in that, The first end corresponds to the front side of the seat body; or, The first end corresponds to the rear side of the seat body; or, The first end corresponds to the left side of the seat body; or, The first end corresponds to the right side of the seat body.

12. A seat adjustment system, characterized in that, The seat adjustment system includes: The seat adjustment device as described in any one of claims 1-11; The controller is connected in communication with the drive component and is used to adjust the working state of the drive component.

13. The seat adjustment system according to claim 12, characterized in that, The seat adjustment system also includes: An acceleration sensor, which is communicatively connected to the controller, is used to detect acceleration parameters and send them to the controller so that the controller can adjust the working state of the drive component based on the acceleration parameters.

14. A seat adjustment method, applied to the seat adjustment system as described in claim 12 or 13, characterized in that, The seat adjustment method includes: Based on the vehicle's acceleration state, the seat's posture is adjusted by the seat adjustment device, wherein the acceleration state is determined by one or more of the vehicle's drive system, braking system, and acceleration sensors of the seat adjustment system.

15. A type of seat, characterized in that, The seat includes: Seat body; The seat adjustment device as described in any one of claims 1-11 is connected to the seat body and is used to adjust the position of the seat body.

16. A vehicle, characterized in that, The vehicle includes: The seat as described in claim 15.

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