Seat adjustment device and vehicle

By introducing a switching structure that combines a motor, a lateral transmission structure, and a longitudinal transmission structure into the vehicle seat, the problem of the seat only being able to move longitudinally is solved, enabling both longitudinal and lateral adjustment of the seat and enhancing its position adjustment capability.

CN224335498UActive Publication Date: 2026-06-09BYD CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BYD CO LTD
Filing Date
2025-04-30
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing vehicle seats can only move longitudinally, resulting in poor seat position adjustment capabilities.

Method used

A seat adjustment device is provided, including a motor, a lateral transmission structure, a longitudinal transmission structure, and a switching structure. The switching structure connects the motor to the lateral or longitudinal transmission structure to switch the seat to move longitudinally or laterally.

Benefits of technology

It enables longitudinal and lateral position adjustment of the seat, enhancing the seat's position adjustment capabilities and making it suitable for different types of vehicles.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present disclosure relates to a seat adjusting device and a vehicle, the seat adjusting device having a first state and a second state which are switched with each other, in the first state, the seat adjusting device is used to drive a seat to move longitudinally, in the second state, the seat adjusting device is used to drive the seat to move transversely. Through the above technical solution, the seat adjusting device can realize longitudinal and transverse adjustment of the position of the seat respectively, and has the advantage of strong position adjustment capability of the seat.
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Description

Technical Field

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

[0002] In related technologies, vehicle seats can only move longitudinally, resulting in poor seat position adjustment capabilities. Utility Model Content

[0003] The purpose of this disclosure is to provide a seat adjustment device and a vehicle, which can adjust the position of the seat both longitudinally and laterally, and has the advantage of strong seat position adjustment capability.

[0004] To achieve the above objectives, according to a first aspect of this disclosure, a seat adjustment device is provided, the seat adjustment device having a first state and a second state that can be switched between each other; in the first state, the seat adjustment device is used to drive a seat to move longitudinally; and in the second state, the seat adjustment device is used to drive a seat to move laterally.

[0005] Optionally, the seat adjustment device includes a motor, a lateral transmission structure, a longitudinal transmission structure, and a switching structure. The motor is connected to the seat. In the first state, the switching structure connects the motor to the longitudinal transmission structure; in the second state, the switching structure connects the motor to the lateral transmission structure.

[0006] Optionally, the transverse transmission structure and the longitudinal transmission structure are spaced apart in the vertical direction, the motor includes an output shaft, and the switching structure is used to drive the output shaft to move in the vertical direction so as to selectively connect with the transverse transmission structure or the longitudinal transmission structure.

[0007] Optionally, both the transverse transmission structure and the longitudinal transmission structure include a lead screw and a lead screw nut for transmission connection. In the first state, the output shaft is transmission connected to the lead screw nut of the longitudinal transmission structure; in the second state, the output shaft is transmission connected to the lead screw nut of the transverse transmission structure.

[0008] Optionally, a worm is provided on the output shaft, and the nuts of the transverse transmission structure and the longitudinal transmission structure are both integrated with worm wheels, and the worm is used to mesh with the worm wheel.

[0009] According to a second aspect of this disclosure, a vehicle is provided, including a battery pack, a seat adjustment device disposed on the battery pack, and a seat, wherein the seat adjustment device is the aforementioned seat adjustment device.

[0010] Optionally, the battery pack includes a top cover with a mounting groove, wherein a lateral transmission structure and / or a longitudinal transmission structure are at least partially disposed in the mounting groove in the vertical direction.

[0011] Optionally, the longitudinal transmission structure includes a first slide rail, and the transverse transmission structure includes a second slide rail. The first slide rail and the second slide rail are disposed in the mounting groove, and the first slide rail and the second slide rail are arranged intersectingly.

[0012] Optionally, the number of the first slide rails is at least two, and the at least two first slide rails are arranged at a lateral interval; and / or, the number of the second slide rails is at least two, and the at least two second slide rails are arranged at a longitudinal interval.

[0013] Optionally, a reinforcing plate is provided at the bottom of the top cover, and the projection of the mounting groove in the vertical direction at least partially overlaps with the projection of the reinforcing plate in the vertical direction.

[0014] Through the above technical solution, in the seat adjustment device provided in this disclosure, in the first state, the seat can move longitudinally, thus facilitating the user to adjust the seat position longitudinally; in the second state, the seat can move laterally, thus facilitating the user to adjust the seat position laterally. Furthermore, the seat can switch between longitudinal and lateral movement using the seat adjustment device, thus facilitating the user to switch the seat from a longitudinal adjustment position to a lateral adjustment position, or vice versa. In summary, the seat adjustment device provided in this disclosure can achieve both longitudinal and lateral seat position adjustments, possessing the advantage of strong seat position adjustment capability.

[0015] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a perspective view of the battery pack and seat provided in an exemplary embodiment of this disclosure;

[0018] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a partial cross-sectional view of the seat adjustment device provided in an exemplary embodiment of this disclosure;

[0020] Figure 4 This is yet another perspective view of the battery pack and seat provided in the exemplary embodiments of this disclosure;

[0021] Figure 5 yes Figure 4 Enlarged view at point B in the middle;

[0022] Figure 6 This is a view of the seat adjustment device provided in an exemplary embodiment of this disclosure in a first state;

[0023] Figure 7 This is a view of the seat adjustment device provided in an exemplary embodiment of this disclosure in a second state;

[0024] Figure 8 This is a partial cross-sectional view of a battery pack provided in an exemplary embodiment of this disclosure;

[0025] Figure 9 This is a perspective view of a battery pack provided in an exemplary embodiment of this disclosure.

[0026] Explanation of reference numerals in the attached figures

[0027] 1. Battery pack; 11. Top cover; 12. Mounting slot; 13. Reinforcing plate; 14. Cold plate; 2. Seat adjustment device; 21. Motor; 211. Output shaft; 2111. Worm gear; 22. Lateral transmission structure; 221. Second slide rail; 23. Longitudinal transmission structure; 231. First slide rail; 3. Seat; 4. Lead screw; 5. Nut; 51. Worm gear. Detailed Implementation

[0028] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0029] In this disclosure, unless otherwise stated, directional terms such as "top" and "bottom" refer to the "top" and "bottom" along the height direction in the usage state of this disclosure. "Longitudinal" refers to the direction indicated by L1 in the accompanying drawings, i.e., the X-direction of the vehicle, corresponding to the length direction of the vehicle; "lateral" refers to the direction indicated by L2 in the accompanying drawings, i.e., the Y-direction of the vehicle, corresponding to the width direction of the vehicle; and "vertical" refers to the direction indicated by L3 in the accompanying drawings, i.e., the Z-direction of the vehicle, corresponding to the height direction of the vehicle. Furthermore, the terms "first," "second," etc., used in this disclosure are for distinguishing one element from another and do not have sequential or importance implications. In addition, in the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements. The above definitions are for explanation and illustration only and should not be construed as limiting this disclosure.

[0030] According to the first aspect of this disclosure, reference to Figures 1 to 7 As shown, a chair adjustment device is provided. The seat adjustment device 2 has a first state and a second state that can be switched between each other. In the first state, the seat adjustment device 2 is used to drive the seat 3 to move longitudinally; in the second state, the seat adjustment device 2 is used to drive the seat 3 to move laterally.

[0031] Through the above technical solution, in the seat adjustment device provided in this disclosure, in the first state, the seat 3 can move longitudinally, thus facilitating the user to adjust the position of the seat 3 longitudinally; in the second state, the seat 3 can move laterally, thus facilitating the user to adjust the position of the seat 3 laterally. Furthermore, the seat 3 can also switch between longitudinal and lateral movement using the seat adjustment device 2, thus facilitating the user to switch the seat 3 from a longitudinal adjustment position to a lateral adjustment position, or vice versa. In summary, the seat adjustment device provided in this disclosure can achieve both longitudinal and lateral adjustment of the seat 3's position, possessing the advantage of strong seat position adjustment capability.

[0032] In the chair adjustment device provided in this disclosure, the seat adjustment device 2 can be constructed in any suitable manner. As an exemplary embodiment, refer to... Figures 2 to 3 as well as Figures 5 to 7 As shown, the seat adjustment device 2 may include a motor 21, a lateral transmission structure 22, a longitudinal transmission structure 23, and a switching structure. The motor 21 can be connected to the seat 3. In a first state, the switching structure can connect the motor 21 to the longitudinal transmission structure 23; in a second state, the switching structure can connect the motor 21 to the lateral transmission structure 22. Thus, in the first state, the motor 21 can be connected to the longitudinal transmission structure 23, thereby enabling the motor 21 to move longitudinally and drive the seat 3 to move longitudinally, which is beneficial for the driver and passenger to adjust the position of the seat 3 longitudinally. Similarly, in the second state, the motor 21 can be connected to the lateral transmission structure 22, thereby enabling the motor 21 to move laterally and drive the seat 3 to move laterally, which is beneficial for the driver and passenger to adjust the position of the seat 3 laterally.

[0033] In the chair adjustment device provided in this disclosure, as an exemplary embodiment, reference is made to... Figures 5 to 7As shown, the lateral transmission structure 22 and the longitudinal transmission structure 23 can be spaced apart in the vertical direction. The motor 21 may include an output shaft 211. The switching structure can be used to drive the output shaft 211 to move in the vertical direction, so as to selectively connect with the lateral transmission structure 22 or the longitudinal transmission structure 23. In the first state, the output shaft 211 is connected with the longitudinal transmission structure 23, thereby enabling the longitudinal movement of the seat 3. When the seat 3 moves to the junction of the lateral transmission structure 22 and the longitudinal transmission structure 23, the switching structure can drive the output shaft 211 to move in the vertical direction, so that the output shaft 211 is connected with the lateral transmission structure 22 (that is, enabling the motor 21 to enter the second state). This allows the seat 3 to switch from the longitudinal adjustment state to the lateral adjustment state. Similarly, the transmission structure can also switch the motor 21 from the second state to the first state, so that the seat 3 can switch from the lateral adjustment state to the longitudinal adjustment state.

[0034] In addition, the switching structure can ensure that the motor 21 is only connected to one of the transverse transmission structure 22 or the longitudinal transmission structure 23. That is, when the motor 21 moves to the junction of the transverse transmission structure 22 and the longitudinal transmission structure 23, the motor 21 can move only in the transverse direction or only in the longitudinal direction to avoid the movement of the motor 21 in the transverse direction from interfering with the movement of the motor 21 in the longitudinal direction, thereby ensuring the reliability of the movement of the seat 3.

[0035] The switching structure can be implemented in any suitable manner. As an exemplary embodiment, the switching structure may include a gear and a rack connected by transmission. The rack is fixed to the motor 21 in the vertical direction, and the gear is rotatably mounted on the seat 3. A knob is coaxially provided on the gear. The user can rotate the knob to make the rack move relative to the gear in the vertical direction, and drive the motor 21 to move relative to the seat 3 in the vertical direction. Thus, the output shaft 211 of the motor 21 can be selectively connected to the transverse transmission structure 22 or the longitudinal transmission structure 23. In other embodiments, the switching structure may also be constructed in other suitable ways, and this disclosure does not impose specific limitations on it.

[0036] In the chair adjustment device provided in this disclosure, the lateral transmission structure 22 and the longitudinal transmission structure 23 can be constructed in any suitable manner. As an exemplary embodiment, refer to... Figures 2 to 3 as well as Figures 5 to 7As shown, both the transverse transmission structure 22 and the longitudinal transmission structure 23 can include a lead screw 4 and a lead nut 5 for transmission connection. In the first state, the output shaft 211 can be transmissionally connected to the lead nut 5 of the longitudinal transmission structure 23; in the second state, the output shaft 211 can be transmissionally connected to the lead nut 5 of the transverse transmission structure 22. In this way, the motor 21 can drive the lead nut 5 to rotate relative to the lead screw 4 through the output shaft 211, and realize the linear motion of the lead nut 5 relative to the lead screw 4 by means of the transmission connection between the lead screw 4 and the lead nut 5, thereby realizing the linear motion of the seat 3 relative to the lead screw 4.

[0037] In the chair adjustment device provided in this disclosure, the transmission connection between the output shaft 211 and the transverse transmission structure 22 (or the longitudinal transmission structure 23) can be realized in any suitable manner. As an exemplary embodiment, refer to... Figures 2 to 3 as well as Figures 5 to 7 As shown, a worm gear 2111 can be installed on the output shaft 211. The lead screw nut 5 of both the transverse transmission structure 22 and the longitudinal transmission structure 23 can integrate a worm wheel 51, and the worm gear 2111 can mesh with the worm wheel 51. Thus, when the output shaft 211 drives the worm gear 2111 to rotate, the worm gear 2111 can drive the lead screw nut 5 to rotate synchronously, converting the rotational motion of the output shaft 211 into linear motion of the output shaft 211 relative to the lead screw 4, thereby realizing the linear motion of the seat 3 relative to the lead screw 4.

[0038] In another exemplary embodiment, both the transverse transmission structure 22 and the longitudinal transmission structure 23 can be constructed as racks, and a gear meshing with the rack can be provided on the output shaft 211 of the motor 21. This allows the rotational motion of the output shaft 211 to be converted into linear motion of the gear relative to the rack, thereby achieving linear movement of the seat 3 relative to the rack. In other embodiments, the transverse transmission structure 22 and the longitudinal transmission structure 23 can also be constructed in other suitable ways, and this disclosure does not impose specific limitations on them.

[0039] According to a second aspect of this disclosure, a vehicle is provided, including a battery pack 1, a seat adjustment device 2 disposed on the battery pack 1, and a seat 3, wherein the seat adjustment device 2 is the aforementioned seat adjustment device.

[0040] In the vehicle provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 1 , Figure 4 , Figure 5 as well as Figure 9As shown, the battery pack 1 may include a top cover 11, which may be provided with a mounting groove 12. In the vertical direction, a lateral transmission structure 22 and / or a longitudinal transmission structure 23 may be at least partially disposed in the mounting groove 12. Compared to mounting the lateral transmission structure 22 and / or the longitudinal transmission structure 23 on the top surface of the top cover 11, this arrangement can reduce the overall height of the top cover 11 and the lateral transmission structure 22 and / or the longitudinal transmission structure 23, thereby saving the total vertical arrangement space of the battery pack 1 and the seat adjustment device 2. The top cover 11 and the mounting groove 12 can be formed as a single unit, which can isolate the internal and external environments of the battery pack 1 to ensure the sealing effect of the battery pack 1.

[0041] Furthermore, since the battery pack 1 and seat adjustment device 2 of this disclosure occupy relatively little space in the vertical direction, this is suitable not only for arranging the aforementioned lateral drive structure 22 and / or longitudinal drive structure 23 in SUV vehicles, but also for arranging the aforementioned lateral drive structure 22 and / or longitudinal drive structure 23 in sedan vehicles. That is, the lateral drive structure 22 and / or longitudinal drive structure 23 can be arranged in different types of vehicles. Here, different types of vehicles refer to vehicles with different passenger spaces; for example, sedan vehicles and SUV vehicles have different passenger spaces.

[0042] In the vehicle provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 1 , Figure 4 , Figure 5 , Figure 8 as well as Figure 9 As shown, the longitudinal transmission structure 23 may include a first slide rail 231, and the transverse transmission structure 22 may include a second slide rail 221. The first slide rail 231 and the second slide rail 221 may be disposed in the mounting groove 12, and the first slide rail 231 and the second slide rail 221 may be arranged crosswise. The two ends of the lead screw 4 of the longitudinal transmission structure 23 may be fixed to the inner wall of the first slide rail 231, and the two ends of the lead screw 4 of the transverse transmission structure 22 may be fixed to the inner wall of the second slide rail 221. Similarly, the rack used as the transverse transmission structure 22 or the longitudinal transmission structure 23 may also be fixed to the inner wall of the second slide rail 221 or the first slide rail 231. This ensures the stability of the lead screw 4 or the rack, thereby ensuring the stability of the seat 3 during movement.

[0043] In the vehicle provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 1 , Figure 4 , Figure 5 , Figure 8 as well as Figure 9As shown, the number of first slide rails 231 can be at least two, and the at least two first slide rails 231 can be arranged laterally at intervals; and / or, the number of second slide rails 221 can be at least two, and the at least two second slide rails 221 can be arranged longitudinally at intervals. Thus, compared to providing only one first slide rail 231 and one second slide rail 221, the above arrangement also allows the seat 3 to move relative to another first slide rail 231 or second slide rail 221 to the location of the other first slide rail 231 or second slide rail 221, thereby increasing the range of motion of the seat 3.

[0044] In addition, each seat 3 can be mounted on two adjacent first slide rails 231 by two motors 21, or each seat 3 can be mounted on two adjacent second slide rails 221 by two motors 21. Compared with each seat 3 being mounted on only one first slide rail 231 or one second slide rail 221 by only one motor 21, the above design can prevent the seat 3 from twisting relative to the battery pack 1, thereby improving the stability of the seat 3.

[0045] In one exemplary embodiment, reference is made to Figure 1 , Figure 4 , Figure 5 and Figure 9 As shown, there can be two second slide rails 221. These two second slide rails 221 can divide the top cover 11 of the battery pack 1 into three regions longitudinally (i.e., a middle region and edge regions on either side of the middle region). Furthermore, the lead screw 4 of the transverse transmission structure 22 can be positioned above the lead screw 4 of the longitudinal transmission structure 23. In this case, moving the seat 3 longitudinally means that the motor 21 can move longitudinally within the middle region to drive the seat 3 to move longitudinally. Additionally, in this embodiment, when two seats 3 are located on adjacent sides of the same first slide rail 231, the longitudinal movement of these two seats 3 means that the two seats 3 move longitudinally without interfering with each other. In other embodiments, the first slide rail 231 and the second slide rail 221 can also be configured in other suitable numbers, and this disclosure does not impose specific limitations on this.

[0046] In the vehicle provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 8 As shown, a reinforcing plate 13 may be provided at the bottom of the top cover 11. The projection of the mounting groove 12 in the vertical direction and the projection of the reinforcing plate 13 in the vertical direction may at least partially overlap. In this way, the reinforcing plate 13 can strengthen the structural strength of the bottom of the mounting groove 12, thereby improving the stability of the transverse transmission structure 22 and / or the longitudinal transmission structure 23 installed in the mounting groove 12.

[0047] In the vehicle provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 8 As shown, the battery pack 1 may include a cold plate 14, which can be disposed between the reinforcing plate 13 and the top cover 11. The reinforcing plate 13 and the cold plate 14 can be connected by a suitable method such as adhesive bonding. This allows the load from the seat adjustment device 2 (or seat 3) borne by the mounting groove 12 to be transferred to the tray of the battery pack 1, and the entire tray supports the mounting groove 12, thereby further improving the structural stability of the mounting groove 12. Furthermore, the cold plate 14 can be fixed to the frame of the battery pack 1, thus transferring the load from the seat adjustment device 2 (or seat 3) to the frame of the battery pack 1, and the entire frame supports the mounting groove 12.

[0048] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0049] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0050] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A seat adjustment device, characterized in that, The seat adjustment device has a first state and a second state that can be switched between each other. In the first state, the seat adjustment device is used to drive the seat to move longitudinally; in the second state, the seat adjustment device is used to drive the seat to move laterally. The seat adjustment device includes a motor, a lateral transmission structure, a longitudinal transmission structure, and a switching structure. The motor is connected to the seat. In the first state, the switching structure connects the motor to the longitudinal transmission structure; in the second state, the switching structure connects the motor to the lateral transmission structure. The lateral transmission structure and the longitudinal transmission structure are spaced apart in the vertical direction. The motor includes an output shaft. The switching structure is used to drive the output shaft to move in the vertical direction so as to selectively connect with the lateral transmission structure or the longitudinal transmission structure.

2. The seat adjustment device according to claim 1, characterized in that, Both the transverse transmission structure and the longitudinal transmission structure include a lead screw and a lead screw nut for transmission connection. In the first state, the output shaft is driven by the lead screw nut of the longitudinal transmission structure; in the second state, the output shaft is driven by the lead screw nut of the transverse transmission structure.

3. The seat adjustment device according to claim 2, characterized in that, The output shaft is provided with a worm gear, and the nuts of the transverse transmission structure and the longitudinal transmission structure are both integrated with worm wheels. The worm gear is used to mesh with the worm wheel.

4. A vehicle, characterized in that, The device includes a battery pack, a seat adjustment device disposed on the battery pack, and a seat, wherein the seat adjustment device is the seat adjustment device according to any one of claims 1-3.

5. The vehicle according to claim 4, characterized in that, The battery pack includes a top cover with a mounting groove, in which a lateral transmission structure and / or a longitudinal transmission structure are at least partially disposed in the mounting groove in the vertical direction.

6. The vehicle according to claim 5, characterized in that, The longitudinal transmission structure includes a first slide rail, and the transverse transmission structure includes a second slide rail. The first slide rail and the second slide rail are disposed in the mounting groove, and the first slide rail and the second slide rail are arranged intersectingly.

7. The vehicle according to claim 6, characterized in that, The number of first slide rails is at least two, and the at least two first slide rails are arranged at a lateral interval; and / or, the number of second slide rails is at least two, and the at least two second slide rails are arranged at a longitudinal interval.

8. The vehicle according to claim 5, characterized in that, A reinforcing plate is provided at the bottom of the top cover, and the projection of the mounting groove in the vertical direction at least partially overlaps with the projection of the reinforcing plate in the vertical direction.