Adjustment mechanism for display screen, seat assembly, and vehicle

Abstract

An adjustment mechanism (200) for a display screen (2), a seat assembly (100), and a vehicle. The adjustment mechanism (200) for a display screen (2) comprises a display screen (2) and a driving assembly (3); the driving assembly (3) comprises a rotary arm (31), a first driving mechanism (33), and a second driving mechanism (34); the first driving mechanism (33) is connected to the rotary arm (31) so as to drive the rotary arm (31) to rotate; and the second driving mechanism (34) is connected to the display screen (2) so as to drive the display screen (2) to rotate relative to the rotary arm (31).

Description

Adjusting mechanism of display screen, seat assembly and vehicle

[0001] Cross-reference to related applications

[0002] The present application is based on the Chinese patent application No. 202411381972X, filed on September 27, 2024, and claims priority to the Chinese patent application No. 202411381972X, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of vehicle equipment, in particular to an adjusting mechanism of a display screen, a seat assembly and a vehicle. BACKGROUND

[0004] In the related art, in order to improve the use experience of passengers, a display screen is often arranged on the back side of the front seat or the center console of the vehicle, so that the front or rear passengers can watch the content on the display screen. However, in the related art, the turning angle of the display screen is too small, which cannot meet the use requirements of passengers with different viewing angles, and affects the use experience of passengers. Therefore, there is a need to be solved. SUMMARY

[0005] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present application is to provide an adjusting mechanism of a display screen, which drives a rotating arm to rotate through a first driving mechanism, and drives a display screen to rotate relative to the rotating arm through a second driving mechanism. The rotating arm can push and raise the display screen, and can provide space for the display screen to be turned relative to the rotating arm. The second driving mechanism can further change the turning angle of the display screen relative to the rotating arm, so that the display screen can be turned to a larger angle, and the display screen can be kept at a better viewing angle, which is beneficial to improving the use experience of users.

[0006] The present application provides a seat assembly comprising the adjusting mechanism of the display screen.

[0007] The present application also provides a vehicle comprising the seat assembly.

[0008] According to the adjusting mechanism of the display screen of the first aspect of the present application, the adjusting mechanism of the display screen comprises a display screen, a driving assembly comprising a rotating arm, a first driving mechanism and a second driving mechanism, the first driving mechanism is connected with the rotating arm to drive the rotating arm to rotate, and the second driving mechanism is connected with the display screen to drive the display screen to rotate relative to the rotating arm.

[0009] According to the adjusting mechanism of the display screen, the first driving mechanism is used to drive the rotating arm to rotate, the second driving mechanism is connected with the display screen to drive the display screen to rotate relative to the rotating arm, the rotating arm can push the display screen out and raise the display screen, and the display screen can be provided with a space that can be turned relative to the rotating arm; and the second driving mechanism can further change the turning angle of the display screen relative to the rotating arm, so that the display screen can be turned to a larger angle, and the display screen can be kept at a better viewing angle, thereby improving the user experience.

[0010] According to some embodiments of the present application, the rotating shaft between the rotating arm and the first driving mechanism is a first rotating shaft, and the rotating shaft between the display screen and the rotating arm is a second rotating shaft, and the second rotating shaft is arranged apart from the first rotating shaft.

[0011] According to some embodiments of the present application, the first rotating shaft and the second rotating shaft are located at two ends of the length direction of the rotating arm.

[0012] According to some embodiments of the present application, the display screen has an upper side and a lower side, the length of the display screen between the upper side and the lower side is L, the orthogonal projection of the second rotating shaft on the display screen is a rotating shaft projection, the distance between the rotating shaft projection and the upper side is L1, the distance between the rotating shaft projection and the lower side of the display screen is L2, and the absolute value of the difference between L2 and L1 is less than 1 / 3L.

[0013] According to some embodiments of the present application, the absolute value of the difference between L2 and L1 ranges from 0 to 1 / 8L.

[0014] According to some embodiments of the present application, the connecting point of the first driving mechanism and the rotating arm is a driving connecting point, and the driving connecting point is located between the first rotating shaft and the second rotating shaft.

[0015] According to some embodiments of the present application, the projection point of the first rotating shaft on the rotating arm is a first rotating point, the projection point of the second rotating shaft on the rotating arm is a second rotating point, and the first rotating point, the second rotating point and the driving connecting point are sequentially connected to form a triangle.

[0016] According to some embodiments of the present application, the maximum turning angle of the display screen is greater than 30°.

[0017] According to some embodiments of the present application, the maximum turning angle of the display screen is 50°-70°.

[0018] According to some embodiments of the present application, the display screen has an upper turning limit position and a lower turning limit position, when the display screen is at the upper turning limit position, the included angle between the display screen and the vertical direction ranges from 30° to 40°, and when the display screen is at the lower turning limit position, the included angle between the display screen and the vertical direction ranges from 20° to 30°.

[0019] According to some embodiments of the present application, the rotary arm has a storage position, in which the first rotation axis and the second rotation axis are arranged along the up-down direction.

[0020] According to some embodiments of the present application, in the storage position, the plane in which the first rotation axis and the second rotation axis lie is a vertical plane.

[0021] According to some embodiments of the present application, in the storage position, the second rotation axis is below the first rotation axis.

[0022] According to some embodiments of the present application, the rotary arm has a maximum deployment position, in which the plane in which the first rotation axis and the second rotation axis lie is a horizontal plane.

[0023] According to some embodiments of the present application, within the rotation angle range of the rotary arm, the second rotation axis is not higher than the first rotation axis when the rotary arm is at any angle position.

[0024] According to some embodiments of the present application, the driving assembly comprises a mounting bracket, the first driving mechanism is mounted on the mounting bracket, the rotary arm is rotatably connected with the mounting bracket, and the rotation axis between the rotary arm and the mounting bracket constitutes the first rotation axis.

[0025] According to some embodiments of the present application, the first driving mechanism comprises a first driving motor, a lead screw, a sliding block and a connecting rod, the sliding block is sleeved on the lead screw and is threadedly connected with the lead screw, the first driving motor is drivingly connected with the lead screw to drive the lead screw to rotate, one end of the connecting rod is rotatably connected with the sliding block, and the other end of the connecting rod is rotatably connected with the rotary arm.

[0026] According to some embodiments of the present application, the lead screw extends along the up-down direction.

[0027] According to some embodiments of the present application, the mounting bracket is provided with a sliding rail extending along the up-down direction, and the sliding block is slidably matched with the sliding rail.

[0028] According to some embodiments of the present application, the first driving mechanism comprises a worm gear and a worm, the worm is connected with the output end of the first driving motor, the worm gear is fixed on the lead screw and coaxially arranged with the lead screw, and the worm gear is engaged with the worm.

[0029] According to some embodiments of the present application, the mounting bracket is provided with a limiting boss, and the swing arm has a storage position and a maximum expansion position, in the maximum expansion position, the limiting boss abuts against the swing arm to limit the swing arm from continuing to rotate in the direction from the storage position to the maximum expansion position.

[0030] According to some embodiments of the present application, the mounting bracket comprises a mounting box, the first driving mechanism is arranged in the mounting box, and the side of the mounting box close to the display screen is provided with an avoiding opening for avoiding the swing arm.

[0031] According to some embodiments of the present application, the first driving mechanism comprises a first driving motor, a lead screw, a sliding block and a connecting rod, the sliding block is sleeved on the lead screw and threadedly connected with the lead screw, the first driving motor is drivingly connected with the lead screw to drive the lead screw to rotate, one end of the connecting rod is rotatably connected with the sliding block, and the other end of the connecting rod is rotatably connected with the swing arm, and the sliding block is provided with a shielding plate for shielding the avoiding opening.

[0032] According to some embodiments of the present application, the mounting bracket is provided with a control board, and the control board is electrically connected with the first driving mechanism, the second driving mechanism and the display screen.

[0033] According to some embodiments of the present application, the control board is connected with the display screen through a first connecting line, the control board is connected with the second driving mechanism through a second connecting line, the first connecting line and the second connecting line constitute a connecting line bundle, the swing arm is provided with a wiring channel, and at least part of the connecting line bundle is wired along the wiring channel.

[0034] According to some embodiments of the present application, the mounting bracket is provided with a first rotating hole and a second rotating hole, the swing arm is provided with a first rotating shaft and a second rotating shaft, the first rotating shaft is rotatably accommodated in the first rotating hole, the second rotating shaft is rotatably accommodated in the second rotating hole, the wiring channel comprises a first wiring channel and a second wiring channel, the first rotating shaft is formed with the first wiring channel, and the second rotating shaft is formed with the second wiring channel.

[0035] According to some embodiments of the present application, the mounting bracket is provided with a locking member, and the swing arm has a storage position, in the storage position, the locking member cooperates with the swing arm to lock the swing arm in the storage position.

[0036] According to some embodiments of the present application, the locking member comprises an electromagnet and a locking tongue, the electromagnet is mounted on the mounting bracket, the locking tongue is movably connected with the electromagnet, so that the locking tongue is movable between a locking position and an unlocking position, the rotating arm is provided with a locking hole, when the electromagnet is powered off, the locking tongue is in the locking position and extends into the locking hole, when the electromagnet is powered on, the locking tongue is in the unlocking position and is separated from the locking hole.

[0037] According to some embodiments of the present application, the locking tongue is rotatably connected with the electromagnet, the locking tongue comprises a locking portion, in the locking position, the locking portion is located in the locking hole, and a guide slope is formed on the surface of the locking portion, the guide slope is used to guide the locking portion to insert into or separate from the locking hole.

[0038] According to some embodiments of the present application, the driving assembly further comprises a damping assembly, the damping assembly is arranged on the output shaft of the second driving mechanism.

[0039] According to some embodiments of the present application, the damping assembly comprises a damping bracket and a damping shaft, the housing of the second driving mechanism is fixed on the back side of the display screen, the output shaft of the second driving mechanism is connected with the damping shaft and is relatively fixed, the damping bracket is sleeved on the outer circumferential side of the damping shaft and the damping shaft is relatively rotatable with the damping bracket, and the damping bracket is fixed on the rotating arm.

[0040] According to some embodiments of the present application, the damping shaft comprises a shaft body and a flange plate, the flange plate is connected on one axial side of the shaft body, the damping bracket is sleeved on the outer circumferential side of the shaft body, the damping assembly comprises a first gasket and a nut, the nut is located on the side of the damping bracket away from the second driving mechanism and is threadedly connected with the shaft body, the first gaskets are sleeved on the outer circumferential side of the shaft body and are located on both axial sides of the damping bracket, one of the first gaskets is located between the flange plate and the damping bracket, and the other of the first gaskets is located between the nut and the damping bracket.

[0041] According to some embodiments of the present application, the damping assembly further comprises one or more spring sheets arranged along the axial direction of the damping shaft, the spring sheets are sleeved on the outer circumferential side of the shaft body and are located on the side of the damping bracket away from the second driving mechanism, and the spring sheets are located between the nut and the first gaskets.

[0042] According to the seat assembly of the second aspect of the embodiments of the present application, the seat assembly comprises: a seat having a seat back; and the adjusting mechanism of the first aspect of the embodiments of the present application, the first driving mechanism is mounted on the seat, and the display screen is located on the back side of the seat back.

[0043] According to the seat assembly of the present application embodiment, by providing the above-mentioned adjustment mechanism, the first drive mechanism in the adjustment mechanism drives the rotating arm to rotate relative to the seat, and the second drive mechanism is connected to the display screen to drive the display screen to rotate relative to the rotating arm. The first rotation axis and the second rotation axis are spaced apart. The rotation of the rotating arm relative to the seat can push the display screen out and raise it, so that the display screen moves relative to the seat, and can also make room for the display screen to flip relative to the rotating arm. Furthermore, the second drive mechanism can further change the flip angle of the display screen relative to the rotating arm, so that the flip angle of the display screen relative to the seat is larger, thereby keeping the display screen at a better viewing angle, which is beneficial to improving the user's user experience.

[0044] According to some embodiments of this application, the angle of the chair back relative to the seat of the chair is adjustable.

[0045] The vehicle according to a third aspect of this application includes: a seat assembly according to the second aspect of this application described above.

[0046] According to the vehicle embodiment of this application, the vehicle includes the aforementioned seat assembly. A first drive mechanism in the seat assembly drives a rotating arm to rotate relative to the seat, and a second drive mechanism is connected to the display screen to drive the display screen to rotate relative to the rotating arm. The first rotation axis and the second rotation axis are spaced apart. The rotation of the rotating arm relative to the seat can push the display screen out and raise it, allowing the display screen to move relative to the seat and also providing space for the display screen to flip relative to the rotating arm. Furthermore, the second drive mechanism can further change the flip angle of the display screen relative to the rotating arm, allowing the display screen to flip at a larger angle relative to the seat, thereby maintaining the display screen at a better viewing angle and improving the user experience.

[0047] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0048] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0049] Figure 1 is a perspective view of a seat assembly according to some embodiments of this application;

[0050] Figure 2 is a schematic diagram of the seat and display screen in the seat assembly of Figure 1 in different states;

[0051] Figure 3 is a schematic diagram of the display screen in the storage position in the adjustment mechanism of the display screen in Figure 1;

[0052] Fig. 4 is a sectional view of the display screen in Fig. 3 in a stowed position;

[0053] Fig. 5 is a sectional view of the display screen in Fig. 1 in a first angular position with the swivel arm in the adjustment mechanism in a maximum extended position;

[0054] Fig. 6 is an enlarged view of Fig. 5 at A;

[0055] Fig. 7 is a schematic view of the display screen in Fig. 5 in a first angular position with the swivel arm in the adjustment mechanism in a maximum extended position;

[0056] Fig. 8 is a sectional view of the display screen in Fig. 7 in a first angular position with the swivel arm in a maximum extended position;

[0057] Fig. 9 is a schematic view of the display screen in Fig. 1 in a second angular position with the swivel arm in the adjustment mechanism in a maximum extended position;

[0058] Fig. 10 is a sectional view of the display screen in Fig. 9 in a second angular position with the swivel arm in a maximum extended position;

[0059] Fig. 11 is a schematic view of the display screen in Fig. 1 in a third angular position with the swivel arm in the adjustment mechanism in a maximum extended position;

[0060] Fig. 12 is a sectional view of the display screen in Fig. 11 in a third angular position with the swivel arm in a maximum extended position;

[0061] Fig. 13 is an exploded view of part of the adjustment mechanism of the display screen in Fig. 11 ;

[0062] Fig. 14 is an assembly view of the swivel arm and the first drive mechanism in the adjustment mechanism of the display screen in Fig. 13, with the swivel arm in a stowed position;

[0063] Fig. 15 is an assembly view of the swivel arm and the first drive mechanism in the adjustment mechanism of the display screen in Fig. 14, with the swivel arm in a maximum extended position;

[0064] Fig. 16 is a schematic view of the locking element in the adjustment mechanism of the display screen in Fig. 14;

[0065] Fig. 17 is an assembly view of the display screen and the second drive mechanism, damping assembly in the adjustment mechanism of the display screen in Fig. 13;

[0066] Fig. 18 is an exploded view of the damping assembly in Fig. 17;

[0067] Fig. 19 is a simplified schematic view of the projection of the second axis of rotation in the adjustment mechanism of the display screen in Fig. 1 onto the display screen.

[0068] 100, seat assembly; 1, seat; 11, seat back; 200, adjusting mechanism; 2, display screen; 21, upper side edge; 22, lower side edge; 23, touch switch; 24, connecting wire harness; 3, driving assembly; 31, rotating arm; 311, first rotation axis; 312, second rotation axis; 313, driving connection point; 314, wire channel; 315, first wire channel; 316, second wire channel; 317, first rotation shaft; 318, second rotation shaft; 319, lock hole; 320, rotating arm cover; 321, bearing cover; 322, bearing support; 33, first driving mechanism; 331, first driving motor; 332, lead screw; 333, sliding block; 334, shielding plate; 335, connecting rod; 336, worm gear; 337, worm; 338, first motor support; 34, second driving mechanism; 341, second motor support; 342, housing; 343, output shaft; 35, mounting support; 351, limiting boss; 352, mounting box; 353, avoiding opening; 354, control board; 355, first rotation hole; 357, locking piece; 358, electromagnet; 359, locking tongue; 360, locking part; 361, guide inclined surface; 362, front shell; 363, rear shell; 364, buffer pad; 365, slide rail; 366, slide rail support; 37, damping assembly; 371, damping support; 372, damping shaft; 373, shaft body; 374, flange plate; 375, first gasket; 376, nut; 377, spring sheet. DETAILED DESCRIPTION

[0069] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as limiting the present application.

[0070] The adjusting mechanism 200 of the display screen according to embodiments of the present application is described below with reference to FIGS. 1-19.

[0071] Referring to FIGS. 1, 12 and 13, the adjusting mechanism 200 of the display screen according to the first aspect embodiment of the present application, the adjusting mechanism 200 of the display screen 2 and the driving assembly 3. The driving assembly 3 includes a rotating arm 31, a first driving mechanism 33 connected with the rotating arm 31 to drive the rotating arm 31 to rotate, and a second driving mechanism 34 connected with the display screen 2 to drive the display screen 2 to rotate relative to the rotating arm 31,

[0072] The first driving mechanism 33 is connected with the rotary arm 31 to drive the rotary arm 31 to rotate, so as to push out and raise the display screen 2, and to make room for the display screen 2 to be flipped relative to the rotary arm 31. The second driving mechanism 34 is connected with the display screen 2 to drive the display screen 2 to rotate relative to the rotary arm 31, so as to change the flip angle of the display screen 2 relative to the rotary arm 31, so that the display screen 2 can be flipped at a larger angle, and thus the display screen 2 can be kept at a better viewing angle, which is beneficial to improve the user experience.

[0073] For example, the display screen adjusting mechanism 200 can be applied to a vehicle. When the display screen adjusting mechanism 200 is installed at the back side of the seat back 11 of the seat 100, the display screen 2 has a storage position and an extended position. When the display screen 2 is at the storage position, the display screen 2 can be half-embedded at the back side of the seat back 11. When the display screen 2 is at the extended position, the rotary arm 31 is driven to rotate relative to the seat 1 by the first driving mechanism 33, so as to push out and raise the display screen 2 relative to the seat 1, to realize the flip of the display screen 2 relative to the seat 1, and the rotary arm 31 is raised and extended relative to the seat 1, so as to make room for the flip of the display screen 2. When the rotary arm 31 is adjusted to the maximum angle position, the display screen 2 is connected with the second driving mechanism 34 to drive the display screen 2 to flip relative to the rotary arm 31, so as to adjust the angle of the display screen 2 relative to the rotary arm 31, to further adjust the angle of the display screen 2 relative to the seat 1, so that the display screen 2 can be flipped at a larger angle relative to the seat 1, so as to provide a better viewing angle for the user.

[0074] When the seat 1 is flipped at a large angle, the rotary arm 31 is driven to rotate relative to the seat 1 by the first driving mechanism 33, and the display screen 2 is driven to rotate relative to the rotary arm 31 by the second driving mechanism 34, so that the display screen 2 can be flipped at a larger angle relative to the seat 1, and the display screen 2 can still be kept at a better viewing angle, and thus the user experience can be improved.

[0075] According to the display screen adjusting mechanism 200, the rotary arm 31 is driven to rotate by the first driving mechanism 33, and the display screen 2 is connected with the second driving mechanism 34 to drive the display screen 2 to rotate relative to the rotary arm 31. The rotary arm 31 can be rotated to push out and raise the display screen 2, and to make room for the flip of the display screen 2 relative to the rotary arm 31. The second driving mechanism 34 can further change the flip angle of the display screen 2 relative to the rotary arm 31, so that the display screen 2 can be flipped at a larger angle, and thus the display screen 2 can be kept at a better viewing angle, which is beneficial to improve the user experience.

[0076] Referring to FIG. 4 and FIG. 13, the rotation axis between the rotary arm 31 and the first driving mechanism 33 is the first rotation axis 311, and the rotation axis between the display screen 2 and the rotary arm 31 is the second rotation axis 312, and the second rotation axis 312 is spaced apart from the first rotation axis 311. The rotary arm 31 is driven to rotate by the first driving mechanism 33, and the display screen 2 is driven to rotate relative to the rotary arm 31 by the second driving mechanism 34, and by being spaced apart from each other by the first rotation axis 311 and the second rotation axis 312, the display screen 2 can be flipped to a larger angle, and by adjusting the flip angle of the display screen 2 relative to the rotary arm 31, the display screen 2 can be kept at a better viewing angle, which is beneficial to improve the user experience; and the display screen 2 can have a small lifting stroke, and when the display screen 2 needs to be adjusted to the desired angle position, for example, the rotary arm 31 is driven to rotate by the first driving mechanism 33 and the display screen 2 is driven to rotate relative to the rotary arm 31 by the second driving mechanism 34. Synchronous movement can quickly adjust the display screen 2 to the right position, reduce the waiting time of the user, and further improve the user experience.

[0077] Referring to FIG. 13 and FIG. 14, according to some embodiments of the present application, the first rotation axis 311 and the second rotation axis 312 are located at both ends of the length direction of the rotary arm 31, so that the rotary arm 31 and the display screen 2 can be independently and mutually unaffectedly rotated to adjust the position of the display screen 2, and the display screen 2 can obtain a larger angle adjustment space.

[0078] For example, when the angle position of the display screen 2 needs to be adjusted, the position of the rotary arm 31 can be adjusted to adjust the height of the display screen 2, and by the first rotation axis 311 and the second rotation axis 312 being located at both ends of the length direction of the rotary arm 31, the rotary arm 31 can be rotated to provide the display screen 2 with a flip space, and by adjusting the angle of the display screen 2 relative to the rotary arm 31 to adjust the display screen 2 to the desired viewing angle, which is beneficial to improve the user experience.

[0079] With reference to FIGS. 4, 8 and 19, according to some embodiments of the present application, the display screen 2 has an upper side 21 and a lower side 22, the length of the display screen 2 between the upper side 21 and the lower side 22 is L, the orthographic projection of the second rotation axis 312 on the display screen 2 is a rotation axis projection, the distance between the rotation axis projection and the upper side 21 is L1, the distance between the rotation axis projection and the lower side 22 of the display screen 2 is L2, and the absolute value of the difference between L2 and L1 is less than 1 / 3L. For example, the absolute value of the difference between L2 and L1 can be 0, 1 / 8L, 1 / 6L, 1 / 5L, 1 / 4L, etc. By making the absolute value of the difference between L2 and L1 less than 1 / 3L, the rotation axis projection can be close to the center of the display screen 2 in the up-down direction, so that the mass center distribution of the display screen 2 on both sides of the second rotation axis 312 is relatively uniform, the mass center on both sides of the second rotation axis 312 changes little when the display screen 2 is flipped, and the possibility of the display screen 2 shaking due to serious imbalance when rotating can be reduced or avoided, so that the display screen 2 can be more stably maintained at each angle, and the user's use experience can be improved.

[0080] For example, if the rotation axis projection is located close to the lower side 22 of the display screen 2 and the absolute value of the difference between L2 and L1 is greater than 1 / 3L, the mass center distribution of the display screen 2 on both sides of the second rotation axis 312 is quite different, at this time a certain force is applied to rotate the display screen 2 counterclockwise, and the greater the acceleration of the applied force, the easier the display screen 2 is to flip relative to the rotating arm 31. If the acceleration direction is reversed, the display screen 2 will rotate clockwise, and if the acceleration direction changes rapidly back and forth, the display screen 2 will shake during rotation due to the large difference in mass center distribution on both sides of the second rotation axis 312, affecting the user's viewing experience. By making the distance between the rotation axis projection and the lower side 22 of the display screen 2 be L2, and the absolute value of the difference between L2 and L1 be less than 1 / 3L, the situation of the display screen 2 shaking due to serious imbalance when rotating can be reduced or avoided.

[0081] For example, with reference to FIG. 19, a point a represents the mass center of the part of the upper side 21 of the display screen 2 to the rotation axis projection, and a point b represents the mass center of the part of the lower side 22 of the display screen 2 to the rotation axis projection.

[0082] Referring to FIG. 4, FIG. 8 and FIG. 19, according to some embodiments of the present application, the absolute value of the difference between L2 and L1 ranges from 0 to 1 / 8L. For example, the absolute value of the difference between L2 and L1 can be 0, 1 / 15L, 1 / 12L, 1 / 9L, 1 / 8L, etc. By making the absolute value of the difference between L2 and L1 not less than 0, the rotation axis projection can be close to the center of the display screen 2 in the up-down direction, so that the mass center distribution of the display screen 2 on both sides of the second rotation axis 312 is more uniform, reducing or avoiding the shaking of the display screen 2 caused by mass center offset during rotation; by making the absolute value of the difference between L2 and L1 not more than 1 / 8L, the rotation axis projection can be close to the center of the display screen 2 in the up-down direction, and there is a certain error between the second rotation axis 312 and the center of the display screen 2 in the up-down direction, making the assembly between the rotating arm 31 and the display screen 2 more convenient.

[0083] By making the absolute value of the difference between L2 and L1 range from 0 to 1 / 8L, the display screen 2 can be more stably maintained at each angle, and the assembly between the rotating arm 31 and the display screen 2 can be more convenient.

[0084] Referring to FIG. 9, FIG. 10 and FIG. 12, according to some embodiments of the present application, the connection point of the first driving mechanism 33 and the rotating arm 31 is the driving connection point 313, which is located between the first rotation axis 311 and the second rotation axis 312. By locating the driving connection point 313 between the first rotation axis 311 and the second rotation axis 312, the driving force of the first driving mechanism can be more evenly distributed to both ends of the length direction of the rotating arm 31, and it is beneficial to balance the mass centers of the rotating arm 31 on both sides of the driving connection point 313, so that the rotating arm 31 rotates more stably, reducing or avoiding the possibility of shaking caused by excessive gravity on one side of the rotating arm 31, thereby improving the overall stability of the display screen adjusting mechanism 200.

[0085] Referring to FIGS. 8, 10 and 12, according to some embodiments of the present application, the projection point of the first rotation axis 311 on the rotating arm 31 is a first rotation point, the projection point of the second rotation axis 312 on the rotating arm 31 is a second rotation point, and the first rotation point, the second rotation point and the driving connection point 313 are sequentially connected to form a triangle. The driving connection point 313 is arranged between the first rotation point and the second rotation point, and the first rotation point, the second rotation point and the driving connection point 313 are not arranged in a straight line, and form a triangular structure, so that the driving connection point 313 is away from the line connecting the first rotation point and the second rotation point, and the driving connection point 313 is not in a straight line with the first rotation point and the second rotation point, so as to as far as possible to increase the torque required by the rotating arm 31 in the rotation direction, so that the display screen 2 is more smoothly flipped relative to the rotating arm 31, and the display screen 2 can be prevented from being unable to be flipped relative to the rotating arm 31 due to insufficient driving component force at the two ends of the length direction of the rotating arm 31, and the first driving mechanism 33 can also be prevented from being damaged due to excessive driving component force at any end of the length direction of the rotating arm 31.

[0086] The effective dispersion of the driving force of the first driving mechanism 33 to the rotating arm 31 to the first rotation point and the second rotation point makes the driving force borne by the first rotation point and the second rotation point more uniform when the rotating arm 31 rotates, so that the rotating arm 31 rotates more stably, and the possibility of vibration caused by stress concentration due to excessive stress on a single point is reduced or avoided.

[0087] Excessive concentration of driving force at the first rotation point or the second rotation point can cause the center of mass of the rotating arm 31 to deviate, and the rotating arm 31 or the phenomenon of shaking is prone to occur.

[0088] Referring to FIGS. 1, 9 and 11, according to some embodiments of the present application, the maximum angle at which the display screen 2 can rotate is greater than 30°. For example, the maximum angle at which the display screen 2 can rotate can be 35°, 45°, 50°, 60°, 70°, etc. By adjusting the angle of the display screen 2, the display screen 2 can maintain a better viewing angle, which is beneficial to improve the user experience.

[0089] For example, when the adjusting mechanism 200 of the display screen is installed at the rear side of the backrest 11 of the seat 100 of the vehicle, the display screen 2 can be flipped clockwise or counterclockwise relative to the seat 1, and when the seat 1 is flipped forward or backward, the display screen 2 can be flipped clockwise or counterclockwise relative to the seat 1, and the maximum angle at which the display screen 2 can rotate is greater than 30°, so that the display screen 2 can still maintain a better viewing angle, thereby improving the user experience.

[0090] Referring to FIGS. 9 and 11, according to some embodiments of the present application, the maximum angle of rotation of the display screen 2 is 50°-70°. For example, the maximum angle of rotation of the display screen 2 is 50°, 55°, 60°, 65°, 70°, etc. By setting the maximum angle of rotation of the display screen 2 to be no less than 50°, the display screen 2 can maintain a better viewing angle, which is conducive to improving the user experience. By setting the maximum angle of rotation of the display screen 2 to be no more than 70°, the possibility of interference between the display screen 2 and other components when the display screen 2 is flipped to the maximum angle can be reduced or avoided.

[0091] By setting the maximum angle of rotation of the display screen 2 to be 50°-70°, the display screen 2 can maintain a better viewing angle, which is conducive to improving the user experience, and the possibility of interference between the display screen 2 and other components when the display screen 2 is flipped to the maximum angle can be reduced or avoided.

[0092] Referring to FIGS. 1 and 9, according to some embodiments of the present application, the display screen 2 has an upper flip limit position and a lower flip limit position. When the display screen 2 is at the upper flip limit position, the included angle β between the display screen 2 and the vertical direction is 30°-40°. When the display screen 2 is at the lower flip limit position, the included angle α between the display screen 2 and the vertical direction is 20°-30°.

[0093] For example, when the display screen 2 is at the upper flip limit position, the included angle β between the display screen 2 and the vertical direction can be 30°, 33°, 35°, 37°, 40°, etc. By setting the included angle β between the display screen 2 and the vertical direction to be no less than 30°, the display screen 2 can maintain a better viewing angle. By setting the included angle β between the display screen 2 and the vertical direction to be no more than 40°, the possibility of interference between the display screen 2 and other components when the display screen 2 is at the upper flip limit position can be reduced or avoided.

[0094] For example, when the adjustment mechanism 200 of the display screen is installed on the rear side of the seat back 11 of the seat 100 of the vehicle, when the seat 1 is flipped 20° toward the rear, by adjusting the display screen 2 to be at the upper flip limit position and the included angle β between the display screen 2 and the vertical direction to be 35°, the display screen 2 can maintain a better viewing angle. Of course, the included angle β between the display screen 2 and the vertical direction is not limited to this, and the flip angle of the display screen 2 can be adjusted according to actual needs to improve the user experience.

[0095] For example, when the display screen is at the lower flip limit position, the included angle α between the display screen 2 and the vertical direction can be 20°, 23°, 25°, 28°, 30°, etc. By setting the included angle α between the display screen 2 and the vertical direction to be no less than 20°, the display screen 2 can maintain a better viewing angle. By setting the included angle α between the display screen 2 and the vertical direction to be no more than 30°, the possibility of interference between the display screen 2 and other components when the display screen 2 is at the lower flip limit position can be reduced or avoided.

[0096] For example, when the display screen adjusting mechanism 200 is installed at the rear side of the seat back 11 of the seat 100 of the vehicle, when the seat 1 is turned forward by 20°, by adjusting the display screen 2 to be at the lower turning limit position and making the included angle a between the display screen 2 and the vertical direction to be 25°, the display screen 2 can still maintain a better viewing angle. Of course, when the display screen 2 is at the lower turning limit position, the included angle a between the display screen 2 and the vertical direction is not limited to this, and the turning angle of the display screen 2 can be adjusted according to actual needs to improve the user experience.

[0097] Referring to FIGS. 3 and 4, according to some embodiments of the present application, the rotary arm 31 has a storage position, in which the first turning axis 311 and the second turning axis 312 are arranged along the up-down direction. In the storage position, the first turning axis 311 and the second turning axis 312 are arranged along the up-down direction, so that the space in the up-down direction can be fully utilized, the structure of the driving assembly 3 as a whole is compact, and the space occupied by the driving assembly 3 in the front-rear direction can be reduced, which is beneficial to making the display screen adjusting mechanism 200 smaller in size in the front-rear direction and reducing the space occupied.

[0098] Referring to FIGS. 3 and 4, according to some embodiments of the present application, in the storage position, the plane in which the first turning axis 311 and the second turning axis 312 are located is a vertical plane. In the storage position, by making the plane in which the first turning axis 311 and the second turning axis 312 are located a vertical plane, the space occupied by the driving assembly 3 in the front-rear direction can be more greatly reduced, which is beneficial to making the display screen adjusting mechanism 200 smaller in size in the front-rear direction and more greatly reducing the space occupied.

[0099] Referring to FIGS. 2, 3 and 4, according to some embodiments of the present application, in the storage position, the second turning axis 312 is located below the first turning axis 311, and when the rotary arm 31 is turned from the storage position to the maximum unfolded position, the second turning axis 312 moves upward from below the first turning axis 311, so that the display screen 2 can be extended and raised.

[0100] Alternatively, the second turning axis 312 is closer to the display screen 2 than the first turning axis 311, by making the plane in which the second turning axis 312 and the first turning axis 311 are located a vertical plane and the second turning axis 312 located below the first turning axis 311 in the storage position, the display screen 2 can be as close as possible to the rotary arm 31, so as to reduce the space occupied by the display screen 2 and the driving assembly 3 as a whole in the front-rear direction.

[0101] For example, when the display screen adjusting mechanism 200 is installed at the back side of the seat back 11 of the seat 100 of the vehicle, the display screen 2 is in the storage position and can be half-embedded in the back side of the seat back 11. When the display screen 2 is in the storage position, the display screen 2 does not protrude from the back side of the seat back 11, which can reduce or avoid the display screen 2 occupying the space behind the seat 100 and affecting the activities of the rear passengers.

[0102] Referring to FIGS. 10, 12 and 13, according to some embodiments of the present application, the rotary arm 31 has a maximum extension position, at which the plane formed by the first rotation axis 311 and the second rotation axis 312 is horizontal. When the rotary arm 31 moves from the storage position to the maximum extension position, the second rotation axis 312 moves from below the first rotation axis 311 to form a horizontal plane with the first rotation axis 311, which can achieve the protrusion and elevation of the end of the rotary arm 31 close to the second rotation axis 312, thereby achieving the protrusion and elevation of the display screen 2, and forming sufficient space between the display screen 2 and the rotary arm 31 to facilitate the second driving mechanism 34 to drive the display screen 2 to flip relative to the rotary arm 31, and can reduce or avoid interference between the display screen 2 and other components.

[0103] In the maximum extension position, the rotary arm 31 is rotated by the maximum angle in the set direction from the storage position.

[0104] Referring to FIGS. 2, 10 and 12, according to some embodiments of the present application, within the range of the rotation angle of the rotary arm 31, the second rotation axis 312 is not higher than the first rotation axis 311 at any angle position of the rotary arm 31, which helps to maintain the stability of the rotary arm 31, and further makes the display screen 2 more stably maintain at the set angle position, reducing the instability phenomenon caused by the high center of mass of the display screen 2 and the driving assembly 3.

[0105] Referring to FIGS. 2, 10 and 13, according to some embodiments of the present application, the driving assembly 3 includes a mounting bracket 35, the first driving mechanism 33 is installed on the mounting bracket 35, and the rotary arm 31 is rotatably connected with the mounting bracket 35, and the rotation axis between the rotary arm 31 and the mounting bracket 35 constitutes the first rotation axis 311. The mounting bracket 35 can support and fix the first driving mechanism 33, and the rotary arm 31 is rotatably connected with the mounting bracket 35, which can make the rotary arm 31 rotate relative to the mounting bracket 35.

[0106] For example, when the display screen adjusting mechanism 200 is installed at the back side of the seat back 11 of the seat 100 of the vehicle, the mounting bracket 35 can be detachably installed on the seat 1, which can facilitate the maintenance or replacement of the driving assembly 3. The rotary arm 31 is rotatably connected with the mounting bracket 35, which can make the rotary arm 31 rotate relative to the mounting bracket 35.

[0107] For example, the first driving mechanism 33 is detachably mounted on the mounting bracket 35, so that the first driving mechanism 33 can be conveniently maintained or replaced.

[0108] Optionally, a side of the swing arm 31 close to the chair back 11 is provided with a swing arm cover 320, and the swing arm cover 320 is threadedly connected with the swing arm 31. The swing arm cover 320 is threadedly connected with the swing arm 31, so that the swing arm cover 320 and the swing arm 31 are detachably connected, and the installation of other components in the swing arm 31 is facilitated.

[0109] Referring to FIGS. 13-15, according to some embodiments of the present application, the first driving mechanism 33 comprises a first driving motor 331, a lead screw 332, a sliding block 333, and a connecting rod 335. The sliding block 333 is sleeved on the lead screw 332 and threadedly connected with the lead screw 332. The first driving motor 331 is drivingly connected with the lead screw 332 to drive the lead screw 332 to rotate. One end of the connecting rod 335 is rotatably connected with the sliding block 333, and the other end of the connecting rod 335 is rotatably connected with the swing arm 31. The first driving motor 331 is drivingly connected with the lead screw 332, and the first driving motor 331 works to drive the lead screw 332 to rotate. The sliding block 333 is sleeved on the lead screw 332 and threadedly connected with the lead screw 332. The rotation of the lead screw 332 drives the sliding block 333 to slide along the extension direction of the lead screw 332. The sliding block 333 is threadedly connected with the lead screw 332, so that the connection between the sliding block 333 and the lead screw 332 is simple, and the stability of the lead screw 332 is enhanced, so that the lead screw 332 is stably kept at a certain set position. For example, the rotation of the lead screw 332 drives the sliding block 333 to slide along the extension direction of the lead screw 332, but the up-and-down sliding of the sliding block 333 cannot drive the lead screw 332 to rotate. The self-locking between the sliding block 333 and the lead screw 332 is achieved to enhance the stability of the lead screw 332.

[0110] One end of the connecting rod 335 is rotatably connected with the sliding block 333, and the other end of the connecting rod 335 is rotatably connected with the swing arm 31. The sliding of the sliding block 333 drives the connecting rod 335 to rotate, and the rotation of the connecting rod 335 drives the swing arm 31 to rotate around the first rotation axis 311, so that the first driving mechanism 33 drives the swing arm 31 to rotate.

[0111] Optionally, a first motor bracket 338 is sleeved on the outer periphery of the first driving motor 331. The first motor bracket 338 is fixed to the mounting bracket 35, and the first motor bracket 338 can support and fix the first driving motor 331. The first motor bracket 338 is fixed to the mounting bracket 35, so that the first driving motor 331 is fixedly connected on the mounting bracket 35.

[0112] Referring to FIGS. 13-15, according to some embodiments of the present application, the screw rod 332 extends in the up-down direction. Since the sliding block 333 is sleeved on the screw rod 332 and the sliding block 333 is threadedly connected with the screw rod 332, the extension of the screw rod 332 in the up-down direction can make the sliding block 333 slide in the up-down direction, the sliding of the sliding block 333 in the up-down direction can drive the connecting rod 335 to move in the up-down direction, the rotation of the connecting rod 335 in the up-down direction can drive the rotary arm 31 to rotate in the up-down direction, so as to realize the rotation of the rotary arm 31 in the up-down direction driven by the first driving mechanism 33, and realize the lifting or retraction of the rotary arm 31.

[0113] Referring to FIGS. 13-15, according to some embodiments of the present application, the mounting bracket 35 is provided with a sliding rail 365 extending in the up-down direction, and the sliding block 333 is slidably connected with the sliding rail 365. The sliding rail 365 can facilitate the movement of the sliding block 333, and can ensure that the sliding block 333 slides along a set track, so as to avoid interference or collision between the sliding block 333 and other devices (such as the second driving mechanism 34) during sliding.

[0114] Optionally, the mounting bracket 35 is provided with a sliding rail bracket 366, the sliding rail 365 is fixed to the sliding rail bracket 366, and the sliding rail bracket 366 is threadedly connected with the mounting bracket 35.

[0115] Referring to FIGS. 13-15, according to some embodiments of the present application, the first driving mechanism 33 comprises a worm wheel 336 and a worm 337, the worm 337 is connected with the output end of the first driving motor 331, the worm wheel 336 is fixed to the screw rod 332 and coaxially arranged with the screw rod 332, and the worm wheel 336 is engaged with the worm 337. The first driving motor 331 can drive the worm 337 to rotate, and through the engagement between the worm wheel 336 and the worm 337, the rotation of the worm 337 can drive the worm wheel 336 to rotate. Through the fixing of the worm wheel 336 to the screw rod 332 and the coaxial arrangement of the worm wheel 336 with the screw rod 332, the rotation of the worm wheel 336 can drive the screw rod 332 to rotate, so as to realize the drivable connection between the first driving motor 331 and the screw rod 332.

[0116] The coaxial arrangement of the worm wheel 336 with the screw rod 332 can make the worm wheel 336 and the screw rod 332 rotate more smoothly.

[0117] Optionally, the first driving motor 331 comprises a planetary gear box connected with the motor shaft of the first driving motor 331, through the meshing of the multiple gears of the planetary gear box, the high-speed rotation output by the motor shaft can be preliminarily reduced in speed and increased in torque, and the high-speed low-torque output of the first driving motor 331 is converted into low-speed high-torque output; the worm 337 is connected with the motor shaft after the speed reduction by the planetary gear box and the worm 337 is engaged with the worm wheel 336, so that the second speed reduction and torque increase can be realized; the rotation of the lead screw 332 drives the sliding block 333 to slide along the extension direction of the lead screw 332, so that the third speed reduction and torque increase can be realized. Through the planetary gear box, the meshing of the worm 337 and the worm wheel 336, and the sliding block 333 sleeved on the lead screw 332 and threadedly connected with the lead screw 332, the three-stage speed reduction and torque increase of the first driving mechanism 33 can be realized, and the mechanical energy of the high-speed low-torque output by the first driving motor 331 is converted into low-speed high-torque energy suitable for driving the rotary arm 31.

[0118] Referring to FIGS. 10, 12 and 15, according to some embodiments of the present application, the mounting bracket 35 is provided with a limiting boss 351, and the rotary arm 31 has a storage position and a maximum unfolded position, in which the limiting boss 351 abuts against the rotary arm 31 to limit the rotary arm 31 from continuing to rotate in the direction from the storage position to the maximum unfolded position. In the maximum unfolded position, the limiting boss 351 can limit the rotary arm 31 from continuing to rotate in the direction from the storage position to the maximum unfolded position, so that the rotary arm 31 is more stably kept in the maximum unfolded position, and the stability of the rotary arm 31 and the display screen 2 as a whole can be enhanced.

[0119] Optionally, the first driving mechanism 33 comprises a first driving motor 331, a lead screw 332, a sliding block 333 and a connecting rod 335, the sliding block 333 is sleeved on the lead screw 332 and threadedly connected with the lead screw 332, the first driving motor 331 is drivingly connected with the lead screw 332 to drive the rotation of the lead screw 332, one end of the connecting rod 335 is rotatably connected with the sliding block 333 and the other end of the connecting rod 335 is rotatably connected with the rotary arm 31, when the rotary arm 31 is in the maximum unfolded position, the limiting boss 351 abuts against the rotary arm 31 to limit the rotary arm 31 from continuing to rotate in the direction from the storage position to the maximum unfolded position, and the connecting rod 335 always applies an upward pushing force to the rotary arm 31, so that the rotary arm 31 is more stably kept in the maximum unfolded position.

[0120] Referring to FIGS. 12-14, according to some embodiments of the present application, the mounting bracket 35 includes a mounting box 352, the first driving mechanism 33 is arranged in the mounting box 352, and a side of the mounting box 352 close to the display screen 2 is provided with an avoiding opening 353 for avoiding the rotary arm 31. The mounting box 352 can play a role of supporting and protecting the first driving mechanism 33 to some extent, avoiding damage of the first driving mechanism 33 due to external impact. The avoiding opening 353 can facilitate the rotary arm 31 to extend out or retract from here during rotation, and can make the structure of the rotary arm 31, the first driving mechanism 33 and the mounting box 352 as a whole compact.

[0121] Optionally, the mounting box 352 includes a front shell 362 and a rear shell 363, the front shell 362 and the rear shell 363 are threadedly connected, and the first driving mechanism 33 is arranged between the front shell 362 and the rear shell 363.

[0122] Referring to FIGS. 12, 13 and 15, according to some embodiments of the present application, the first driving mechanism 33 includes a first driving motor 331, a lead screw 332, a sliding block 333 and a connecting rod 335, the sliding block 333 is sleeved on the lead screw 332 and is threadedly connected with the lead screw 332, the first driving motor 331 is drivingly connected with the lead screw 332 to drive the lead screw 332 to rotate, one end of the connecting rod 335 is rotatably connected with the sliding block 333 and the other end of the connecting rod 335 is rotatably connected with the rotary arm 31, and a shielding plate 334 is arranged on the sliding block 333 and used for shielding the avoiding opening 353. The shielding plate 334 is used for shielding the avoiding opening 353, which can increase the shielding area of the avoiding opening 353, thereby effectively shielding the internal structure of the mounting box 352, avoiding the structure in the mounting box 352 to be directly exposed to the outside, reducing the possibility of dust or other impurities entering the inside of the mounting box 352 through the avoiding opening 353, thereby shielding the structure in the mounting box 352 and improving the overall aesthetics of the adjusting mechanism 200 of the display screen.

[0123] For example, when the rotary arm 31 rotates from the storage position to the maximum unfolded position, the first driving motor 331 drives the sliding block 333 to slide upward through the lead screw 332 to make the rotary arm 31 extend out and lift through the avoiding opening 353, and the sliding block 333 slides upward to drive the shielding plate 334 to move upward, the shielding plate 334 can shield the area below the rotary arm 31 at the avoiding opening 353, through the cooperation of the rotary arm 31 and the shielding plate 334, the shielding area of the avoiding opening 353 can be increased, thereby effectively shielding the internal structure of the mounting box 352, avoiding the structure in the mounting box 352 to be directly exposed to the outside, reducing the possibility of dust or other impurities entering the inside of the mounting box 352 through the avoiding opening 353, thereby shielding the structure in the mounting box 352 and improving the overall aesthetics of the adjusting mechanism 200 of the display screen.

[0124] For another example, when the rotary arm 31 rotates from the maximum unfolded position to the storage position, the first driving motor 331 drives the screw rod driving slider 333 to slide downward to drive the rotary arm 31 to move to the storage position through the avoiding opening 353, and the slider 333 sliding downward can drive the shielding plate 334 to move downward, and the shielding plate 334 moving downward can reduce the shielding area of the avoiding opening 353, so that the rotary arm 31 moves to the storage position through the avoiding opening 353 more smoothly.

[0125] Optionally, the shielding plate 334 is formed with an avoiding gap, and when the rotary arm 31 is in the maximum unfolded position, at least part of the connecting rod 335 is accommodated in the avoiding gap, which can facilitate the accommodation of at least part of the connecting rod 335 therein, can reduce or avoid the possibility of interference between the connecting rod 335 and the shielding plate 334 during the rotation of the rotary arm 31, and can make the overall structure of the first driving mechanism 33 compact.

[0126] Referring to FIGS. 5, 6 and 13, according to some embodiments of the present application, the mounting bracket 35 is provided with a control board 354, and the control board 354 is electrically connected with the first driving mechanism 33, the second driving mechanism 34 and the display screen 2. By electrically connecting the control board 354 with the first driving mechanism 33, the second driving mechanism 34 and the display screen 2, the control board 354 can realize power supply and information transmission to the first driving mechanism 33, the second driving mechanism 34 and the display screen 2.

[0127] Optionally, the control board 354 is provided with a touch switch 23, and when the display screen 2 is in the storage position, the display screen 2 can trigger the touch switch to control the first driving mechanism 33 and the second driving mechanism 34 to stop moving.

[0128] Referring to FIGS. 5, 13 and 15, according to some embodiments of the present application, the control board 354 is connected with the display screen 2 through a first connecting line, the control board 354 is connected with the second driving mechanism 34 through a second connecting line, the first connecting line and the second connecting line constitute a connecting line bundle 24, and the rotary arm 31 is provided with a wiring channel 314, and at least part of the connecting line bundle 24 is wired along the wiring channel 314. The wiring channel 314 can guide the connecting line bundle 24 to arrange according to the set path, the connecting line bundle 24 can be wired along the wiring channel 314 to connect the control board 354 with the display screen 2 and the second driving mechanism 34, which can realize the electrical connection of the control board 354 with the display screen 2 and the second driving mechanism 34, can avoid the connecting line bundle 24 from running out of position to cause abnormal sound, jam or interference with other components (such as the first driving mechanism 33) to hinder the movement of other components when the display screen 2 is flipped, and is convenient for later maintenance and troubleshooting of the connecting line bundle 24.

[0129] For example, when the arm 31 rotates and the display screen 2 flips relative to the arm 31, by routing at least part of the connection wire harness 24 along the routing channel 314 of the arm 31, the connection wire harness 24 can avoid occupying the movement space of the arm 31 and the display screen 2, effectively reducing or avoiding the possibility of movement jamming of the arm 31 and the display screen 2 or loose plugging of the connection wire harness 24.

[0130] For example, at least part of the connection wire harness 24 can be routed along the routing channel 314; for another example, the entire connection wire harness 24 can be routed along the routing channel 314.

[0131] Referring to FIGS. 5, 14 and 15, according to some embodiments of the present application, the mounting bracket 35 is provided with a first rotation hole 355 and a second rotation hole, the arm 31 is provided with a first rotation shaft 317 and a second rotation shaft 318, the first rotation shaft 317 is rotatably accommodated in the first rotation hole 355, the second rotation shaft 318 is rotatably accommodated in the second rotation hole, the routing channel 314 includes a first routing channel 315 and a second routing channel 316, the first routing channel 315 is formed in the first rotation shaft 317, and the second routing channel 316 is formed in the second rotation shaft 318. The first rotation hole 355 can facilitate the accommodation of the first rotation shaft 317 therein, thereby facilitating the assembly between the arm 31 and the mounting bracket 35, and can make the structure of the arm 31 and the mounting bracket 35 as a whole compact. The second rotation hole can facilitate the accommodation of the second rotation shaft 318 therein, thereby facilitating the assembly between the arm 31 and the mounting bracket 35, and can make the structure of the arm 31 and the mounting bracket 35 as a whole compact.

[0132] Since the second rotation shaft 318 is closer to the display screen 2 than the first rotation shaft 317, and the first rotation shaft 317 is closer to the control panel 354 than the second rotation shaft 318, by forming the first routing channel 315 in the first rotation shaft 317 and the second routing channel 316 in the second rotation shaft 318, and routing at least part of the connection wire harness 24 along the first routing channel 315 and the second routing channel 316, the control panel 354 can indirectly supply power to the display screen 2, and the length of the connection wire harness 24 can be reduced.

[0133] Optionally, the outer periphery of the first rotation shaft 317 is sleeved with a bearing cover 321, and the bearing cover 321 is fixed to the first rotation hole 355 of the mounting bracket 35, for example, the bearing cover 321 and the mounting bracket 35 can be threadedly connected by bolts, and the bearing cover 321 is fixed to the first rotation hole 355 of the mounting bracket 35, which can support and fix the first rotation shaft 317, thereby improving the stability of the first rotation shaft 317.

[0134] Optionally, the outer periphery of the first rotating shaft 317 is sleeved with a bearing support 322, the bearing support 322 is threadedly connected with the mounting support 35, and the bearing support 322 can provide support to the first rotating shaft 317 to enhance the stability of the first rotating shaft 317.

[0135] Referring to FIGS. 3, 14 and 16, according to some embodiments of the present application, the mounting support 35 is provided with a locking member 357, and the swing arm 31 has a storage position, in which the locking member 357 cooperates with the swing arm 31 to lock the swing arm 31 in the storage position. When the swing arm 31 is in the storage position, the locking member 357 cooperates with the swing arm 31 to lock the swing arm 31 in the storage position, which can limit the rotation of the swing arm 31 and make the swing arm 31 more stably stay in the storage position, reducing or avoiding the possibility of continued swinging or rotating of the swing arm 31, so that the display screen 2 can be more stably kept in the storage position, reducing or avoiding the possibility of abnormal sound of the display screen 2 due to continued swinging or rotating, thereby being conducive to enhancing the stability of the adjusting mechanism 200 of the display screen.

[0136] Optionally, referring to FIG. 12, the mounting support 35 includes a mounting box 352, the mounting box 352 includes a front shell 362 and a rear shell 363, the front shell 362 is threadedly connected with the rear shell 363, the first driving mechanism 33 is arranged between the front shell 362 and the rear shell 363, the front shell 362 is provided with a buffer pad 364, the buffer pad 364 is bonded to the side of the front shell 362 close to the display screen 2, when the swing arm 31 is in the storage position, the locking member 357 cooperates with the swing arm 31 to lock the swing arm 31 in the storage position, and the display screen 2 is in a locked state under the tensioning force of the swing arm 31 and the supporting force of the buffer pad 364, which can make the display screen 2 more stably stay in the storage position, reducing or avoiding the possibility of abnormal sound of the display screen 2 due to loosening or vibration.

[0137] For example, the buffer pad 364 can be a rubber member.

[0138] Referring to FIG. 1, FIG. 15 and FIG. 16, according to some embodiments of the present application, the locking member 357 comprises an electromagnet 358 and a locking tongue 359, the electromagnet 358 is mounted on the mounting bracket 35, the locking tongue 359 is movably connected with the electromagnet 358, so that the locking tongue 359 is movable between a locking position and an unlocking position, the rotary arm 31 is provided with a locking hole 319, when the electromagnet 358 is powered off, the locking tongue 359 is in the locking position, the locking tongue 359 extends into the locking hole 319, when the electromagnet 358 is powered on, the locking tongue 359 is in the unlocking position, the locking tongue 359 is separated from the locking hole 319. For example, a spring is arranged between the electromagnet 358 and the locking tongue 359, one end of the spring is connected with the locking tongue 359, the other end of the spring is connected with the electromagnet 358, when the electromagnet 358 is powered off, the locking tongue 359 moves away from the electromagnet 358 under the elastic force of the spring, so that the locking tongue 359 extends into the locking hole 319 to limit the rotary arm 31 to continue to swing or rotate, when the electromagnet 358 is powered on, the electromagnet 358 has a pulling force on the locking tongue 359, the pulling force can overcome the elastic force of the spring, so that the locking tongue 359 moves towards the electromagnet 358, so that the locking tongue 359 is separated from the locking hole 319.

[0139] For example, at least part of the locking tongue 359 is made of ferromagnetic material, for example, the locking tongue 359 can be made of iron. When the electromagnet 358 is powered on, the electromagnet 358 has a magnetic force on the locking tongue 359, the magnetic force constitutes the above-mentioned pulling force, which can overcome the elastic force of the spring, so that the locking tongue 359 moves towards the electromagnet 358, so that the locking tongue 359 is separated from the locking hole 319.

[0140] Referring to FIG. 14-FIG. 16, according to some embodiments of the present application, the locking tongue 359 is rotatably connected with the electromagnet 358, the locking tongue 359 comprises a locking portion 360, in the locking position, the locking portion 360 is located in the locking hole 319, the surface of the locking portion 360 is formed with a guide slope 361, the guide slope 361 is used to guide the locking portion 360 to insert into or separate from the locking hole 319. The guide slope 361 can guide the locking portion 360, and can insert the locking portion 360 into or separate the locking portion 360 from the locking hole 319 with relatively small force, can reduce the damage degree of the locking portion 360 caused by the collision between the locking portion 360 and the end surface of the locking hole 319 during the movement of the locking portion 360, and can reduce the friction and wear of the locking portion 360 during the movement.

[0141] Referring to FIGS. 5, 6 and 17, according to some embodiments of the present application, the driving assembly 3 further comprises a damping assembly 37 arranged at the output shaft 343 of the second driving mechanism 34, which can provide a damping force to the second driving mechanism 34, and when the overturning torque suffered by the display screen 2 exceeds the preset maximum damping friction torque of the damping assembly 37, the damping force provided by the damping assembly 37 can limit the continuous overturning of the display screen 2, so that the display screen 2 is more stably kept at the maximum unfolded position, which can reduce or avoid the possibility of damage to the second driving mechanism 34 due to excessive overturning of the display screen 2 caused by external violence, and is beneficial to prolong the service life of the adjusting mechanism 200 of the display screen.

[0142] Referring to FIGS. 13, 17 and 18, according to some embodiments of the present application, the damping assembly 37 comprises a damping bracket 371 and a damping shaft 372, the housing 342 of the second driving mechanism 34 is fixed to the back side of the display screen 2, the output shaft 343 of the second driving mechanism 34 is connected with the damping shaft 372 and the output shaft 343 of the second driving mechanism 34 is relatively fixed with the damping shaft 372, the damping bracket 371 is sleeved on the outer circumferential side of the damping shaft 372 and the damping shaft 372 and the damping bracket 371 can relatively rotate, and the damping bracket 371 is fixed to the rotating arm 31. The damping bracket 371 is sleeved on the outer circumferential side of the damping shaft 372, which can support and fix the damping shaft 372, and there is a certain friction force between the damping shaft 372 and the damping bracket 371, and the damping bracket 371 can rotate with the damping shaft 372 under the driving of the friction force; and when the overturning torque suffered by the display screen 2 exceeds the preset maximum friction torque of the damping assembly 37, the damping bracket 371 slips and rotates relative to the housing 342 of the second driving mechanism 34 to limit the continuous overturning of the display screen 2, which can protect the second driving mechanism 34 to a certain extent and reduce or avoid the possibility of damage to the second driving mechanism 34 due to excessive overturning of the display screen 2.

[0143] Optionally, the damping bracket 371 can be fixed to the rotating arm 31 by bolts, so that the connection between the damping bracket 371 and the rotating arm 31 is simple and has strong stability.

[0144] Optionally, a second motor bracket 341 is sleeved on the outer circumferential side of the second driving mechanism 34, the second motor bracket 341 is fixed to the back side of the display screen 2, and the second motor bracket 341 can provide support and fixing functions for the second driving mechanism 34. By fixing the second motor bracket 341 to the back side of the display screen 2, the housing 342 of the second driving mechanism 34 can be fixed to the back side of the display screen 2.

[0145] Referring to FIG. 13, FIG. 17 and FIG. 18, according to some embodiments of the present application, the damping shaft 372 comprises a shaft body 373 and a flange plate 374 connected at one axial side of the shaft body 373, the damping support 371 is sleeved at the outer circumferential side of the shaft body 373, the damping assembly 37 comprises a first gasket 375 and a nut 376, the nut 376 is located at the side of the damping support 371 away from the second driving mechanism 34 and is threadedly connected with the shaft body 373, the first gasket 375 is sleeved at the outer circumferential side of the shaft body 373 and is located at both axial sides of the damping support 371, one of the first gaskets 375 is located between the flange plate 374 and the damping support 371, and the other first gasket 375 is located between the nut 376 and the damping support 371. The flange plate 374 can limit the damping shaft 372, so that the assembly position between the damping shaft 372 and the damping support 371 is accurate. The nut 376 is threadedly connected with the shaft body 373, so that the connection between the nut 376 and the damping shaft 372 is simple and has strong stability, and the nut 376 can provide a certain tightening force for the damping shaft 372, and the size of the tightening force can be adjusted by adjusting the tightness of the nut 376, so that the size of the maximum damping friction torque can be adjusted.

[0146] For example, when the display screen 2 is subjected to external violent rotation and the rotation torque of the display screen 2 exceeds the preset maximum damping friction torque, the damping support 371 slips relative to the shell 342 of the second driving mechanism 34 to limit the second driving mechanism 34 from continuing to rotate, thereby reducing or avoiding the possibility of damage caused by violent rotation of the second driving mechanism 34.

[0147] One of the first gaskets 375 is located between the flange plate 374 and the damping support 371, which can enhance the friction between the damping support 371 and the damping shaft 372, so that the movement of the damping shaft 372 can drive the movement of the damping support 371, and the other first gasket 375 is located between the nut 376 and the damping support 371, which can enhance the friction between the nut 376 and the damping support 371, thereby reducing or preventing the possibility of loosening of the nut 376.

[0148] Referring to FIG. 13, FIG. 17 and FIG. 18, according to some embodiments of the present application, the damping assembly 37 further comprises one or more spring sheets 377 arranged along the axial direction of the damping shaft 372, the spring sheets 377 being sleeved on the outer circumferential side of the shaft body 373 and located on the side of the damping bracket 371 away from the second driving mechanism 34, the spring sheets 377 being located between the nut 376 and the first washer 375. The spring sheets 377 being located between the nut 376 and the first washer 375 can adjust the tightening force applied by the nut 376, so that the preset damping maximum friction torque of the damping assembly 37 reaches a suitable size, and when the display screen 2 is flipped to the maximum angle position, the excessive flipping of the second driving mechanism 34 can be limited by the slippage rotation of the damping bracket relative to the housing 342 of the second driving mechanism 34, so as to avoid the possibility of damage to the second driving mechanism 34 due to violent rotation.

[0149] In the description of the present application, the meaning of "multiple" is two or more.

[0150] Referring to FIG. 1, FIG. 2 and FIG. 12, the seat assembly 100 according to the second aspect embodiment of the present application comprises a seat 1 and the adjusting mechanism 200 according to the above-mentioned first aspect embodiment of the present application, the seat 1 having a seat back 11, the first driving mechanism 33 being installed on the seat 1, and the display screen 2 being located on the back side of the seat back 11.

[0151] According to the seat assembly 100 of the embodiments of the present application, the first driving mechanism 33 drives the rotation of the swing arm 31 relative to the seat 1, the second driving mechanism 34 is connected with the display screen 2 to drive the rotation of the display screen 2 relative to the swing arm 31, and the first rotation axis 311 and the second rotation axis 312 are arranged apart from each other, so that the rotation of the swing arm 31 relative to the seat 1 can push and raise the display screen 2, so that the display screen 2 moves relative to the seat 1, and also can give the display screen 2 a space that can be flipped relative to the swing arm 31; and the second driving mechanism 34 can further change the flipping angle of the display screen 2 relative to the swing arm 31, so that the display screen 2 flips relative to the seat 1 at a larger angle, and then the display screen 2 can be kept at a better viewing angle, which is beneficial to improve the user's experience.

[0152] Referring to FIG. 1 and FIG. 2, according to some embodiments of the present application, the angle of the seat back 11 relative to the seat of the seat 1 is adjustable, so that the angle of the seat back 11 relative to the seat of the seat 1 can be adjusted by the user according to the actual needs to meet the different use requirements of the user and improve the user's experience.

[0153] Optionally, the seat assembly 100 comprises a control unit and a posture detector, the control unit is connected with the posture detector and the driving assembly 3, the posture detector is arranged in the chair back 11 and is used for detecting the posture position of the chair back 11, the control unit compares the angle difference between the chair back 11 and the initial set posture in real time, and sends the angle adjustment instruction of the display screen 2 to the driving assembly 3, so that the display screen 2 is adjusted to the corresponding angle position under different initial set postures of the chair back 11, so that the display screen 2 is kept at the optimal viewing angle, and the user experience is improved.

[0154] For example, when the posture detector detects that the chair back 11 is turned forward by 20°, the control unit can control the driving assembly 3 to lift the display screen 2 and turn it downward by 25°, so that the display screen 2 is kept at the optimal viewing angle; for another example, when the posture detector detects that the chair back 11 is in the initial set posture, the control unit can control the driving assembly 3 to make the rotary arm 31 be in the storage position, so that the display screen 2 is in the storage position, so that the display screen 2 is kept at the optimal viewing angle and the occupation of the rear space is reduced; for another example, when the posture detector detects that the chair back 11 is turned backward by 20°, the control unit can control the driving assembly 3 to lift the display screen 2 and turn it upward by 35°, so that the display screen 2 is kept at the optimal viewing angle.

[0155] Optionally, the chair back 11 can comprise an electric switch and a manual switch, to control the angle adjustment of the chair back 11 relative to the seat of the seat 1, the electric switch is electrically connected with the control unit. When the user adjusts the angle of the chair back 11 relative to the seat of the seat 1 through the electric switch, the angle difference between the chair back 11 and the initial set posture can be transmitted to the control unit synchronously, and the adjustment of the turning angle of the display screen 2 is realized while the angle of the chair back 11 relative to the seat is adjusted; when the user adjusts the angle of the chair back 11 relative to the seat of the seat 1 through the manual switch, the posture position of the chair back 11 is detected through the posture detector, the control unit compares the angle difference between the chair back 11 and the initial set posture in real time, and sends the angle adjustment instruction of the display screen 2 to the driving assembly 3, so that the display screen 2 is adjusted to the corresponding angle position under different initial set postures of the chair back 11, so that the display screen 2 is kept at the optimal viewing angle, and the user experience is improved.

[0156] Referring to FIG. 1 and FIG. 2, the vehicle according to the third aspect of the present application comprises the seat assembly 100 according to the second aspect of the present application.

[0157] According to the vehicle of the embodiment of the present application, by the vehicle comprising the seat assembly 100, the first driving mechanism 33 in the seat assembly 100 is used to drive the rotary arm 31 to rotate relative to the seat 1, the second driving mechanism 34 is connected with the display screen 2 to drive the display screen 2 to rotate relative to the rotary arm 31, and the first rotation axis 311 and the second rotation axis 312 are arranged at intervals, the rotary arm 31 rotating relative to the seat 1 can push and raise the display screen 2, so that the display screen 2 moves relative to the seat 1, and can also give the display screen 2 a space that can be turned relative to the rotary arm 31; and the second driving mechanism 34 can further change the turning angle of the display screen 2 relative to the rotary arm 31, so that the display screen 2 turns relative to the seat 1 at a larger angle, and the display screen 2 can be kept at a better viewing angle, which is beneficial to improving the use experience of the user.

[0158] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0159] In the description of the present application, "first feature" and "second feature" can include one or more of the features.

[0160] In the description of the present application, the "first feature" above or below the "second feature" can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them.

[0161] In the description of the present application, the "first feature" above, above and above the "second feature" includes that the first feature is directly above and obliquely above the second feature, or only means that the first feature is higher than the second feature in horizontal height.

[0162] In the description of the present application, the description referring to the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0163] While the embodiments of the application have been shown and described, it is to be understood that the embodiments can be varied, modified, substituted and changed by those skilled in the art without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. An adjustment mechanism (200) for a display screen (2), wherein The display screen (2) is provided with an upper side (21) and a lower side (22), the length of the display screen (2) between the upper side (21) and the lower side (22) is L, the orthogonal projection of the second rotation axis (312) on the display screen (2) is a rotation axis projection, the distance between the rotation axis projection and the upper side (21) is L1, the distance between the rotation axis projection and the lower side (22) of the display screen (2) is L2, and the absolute value of the difference between L2 and L1 is less than 1 / 3L. The absolute value of the difference between L2 and L1 is in the range of 0-1 / 8L. The connection point between the first driving mechanism (33) and the rotating arm (31) is a driving connection point (313), and the driving connection point (313) is located between the first rotation axis (311) and the second rotation axis (312).

2. Adjusting mechanism (200) of a display screen (2) according to claim 1, wherein The projection point of the first rotation axis (311) on the rotating arm (31) is a first rotation point, the projection point of the second rotation axis (312) on the rotating arm (31) is a second rotation point, and the first rotation point, the second rotation point and the driving connection point (313) are sequentially connected to form a triangle.

3. Adjusting mechanism (200) of a display screen (2) according to claim 2, wherein The maximum angle of rotation of the display screen (2) is greater than 30°.

4. Adjusting mechanism (200) of a display screen (2) according to claim 2, wherein The maximum angle of rotation of the display screen (2) is in the range of 50°-70°.

5. Adjusting mechanism (200) of a display screen (2) according to claim 4, wherein The display screen (2) has an upper turning limit position and a lower turning limit position, when the display screen (2) is at the upper turning limit position, the included angle between the display screen (2) and the vertical direction is in the range of 30°-40°, and when the display screen (2) is at the lower turning limit position, the included angle between the display screen (2) and the vertical direction is in the range of 20°-30°.

6. Adjusting mechanism (200) of a display screen (2) according to any one of claims 2-5, wherein The rotating arm (31) has a storage position, in which the first rotation axis (311) and the second rotation axis (312) are arranged in the up-down direction.

7. Adjusting mechanism (200) of a display screen (2) according to claim 6, wherein In the storage position, the plane in which the first rotation axis (311) and the second rotation axis (312) are located is a vertical plane.

8. An adjustment mechanism (200) for a display screen (2) according to claim 1, wherein In the storage position, the second rotation axis (312) is located below the first rotation axis (311).

9. Adjusting mechanism (200) of a display screen (2) according to claim 8, wherein ​ 10. An adjustment mechanism (200) for a display screen (2) according to claim 8, wherein ​ 11. An adjustment mechanism (200) for a display screen (2) according to claim 2, wherein ​ 12. Adjusting mechanism (200) of a display screen (2) according to claim 11, wherein ​ 13. Adjusting mechanism (200) of a display screen (2) according to claim 11 or 12, wherein ​ 14. Adjusting mechanism (200) of a display screen (2) according to claim 13, wherein The rotating arm (31) has a maximum unfolding position, in which the first rotation axis (311) and the second rotation axis (312) are in a horizontal plane.

15. An adjustment mechanism (200) for a display screen (2) according to claim 2, wherein, In the rotating angle range of the rotating arm (31), the second rotation axis (312) is not higher than the first rotation axis (311) in any angle position of the rotating arm (31).

16. An adjustment mechanism (200) for a display screen (2) according to claim 2, wherein The driving assembly (3) comprises a mounting bracket (35), the first driving mechanism (33) is mounted on the mounting bracket (35), the rotating arm (31) is rotatably connected with the mounting bracket (35), and the rotation axis between the rotating arm (31) and the mounting bracket (35) forms the first rotation axis (311).

17. An adjustment mechanism (200) for a display screen (2) according to claim 16, wherein The first driving mechanism (33) comprises a first driving motor (331), a lead screw (332), a sliding block (333) and a connecting rod (335), the sliding block (333) is sleeved on the lead screw (332) and is threadedly connected with the lead screw (332), the first driving motor (331) is drivingly connected with the lead screw (332) to drive the lead screw (332) to rotate, one end of the connecting rod (335) is rotatably connected with the sliding block (333), and the other end of the connecting rod (335) is rotatably connected with the rotating arm (31).

18. An adjustment mechanism (200) for a display screen (2) according to claim 17, wherein The lead screw (332) extends in the up-down direction.

19. An adjustment mechanism (200) for a display screen (2) according to claim 18, wherein The mounting bracket (35) is provided with a sliding rail (365) extending in the up-down direction, and the sliding block (333) is slidably connected with the sliding rail (365).

20. An adjustment mechanism (200) for a display screen (2) according to claim 19, wherein The first driving mechanism (33) comprises a worm wheel (336) and a worm (337), the worm (337) is connected with the output end of the first driving motor (331), the worm wheel (336) is fixed on the lead screw (332) and is coaxially arranged with the lead screw (332), and the worm wheel (336) is meshed with the worm (337).

21. Adjusting mechanism (200) of a display screen (2) according to any one of claims 16-20, wherein The mounting bracket (35) is provided with a limiting boss (351), the rotating arm (31) has a storage position and a maximum unfolding position, in the maximum unfolding position, the limiting boss (351) abuts against the rotating arm (31) to limit the rotating arm (31) to continue to rotate in the direction from the storage position to the maximum unfolding position.

22. Adjusting mechanism (200) of a display screen (2) according to any one of claims 16-21, wherein The mounting bracket (35) comprises a mounting box (352), the first driving mechanism (33) is arranged in the mounting box (352), and the side of the mounting box (352) close to the display screen (2) is provided with an avoiding opening (353) for avoiding the rotating arm (31).

23. Adjusting mechanism (200) of a display screen (2) according to claim 22, wherein The first driving mechanism (33) comprises a first driving motor (331), a lead screw (332), a sliding block (333) and a connecting rod (335), the sliding block (333) is sleeved on the lead screw (332) and is threadedly connected with the lead screw (332), the first driving motor (331) is drivingly connected with the lead screw (332) to drive the lead screw (332) to rotate, one end of the connecting rod (335) is rotatably connected with the sliding block (333) and the other end of the connecting rod (335) is rotatably connected with the rotary arm (31), and a shielding plate (334) is arranged on the sliding block (333) and used for shielding the avoiding opening (353).

24. Adjusting mechanism (200) of a display screen (2) according to any one of claims 16-23, wherein The mounting bracket (35) is internally provided with a control panel (354), and the control panel (354) is electrically connected with the first driving mechanism (33), the second driving mechanism (34) and the display screen (2).

25. An adjustment mechanism (200) for a display screen (2) according to claim 24, wherein The control panel (354) is connected with the display screen (2) through a first connecting line, the control panel (354) is connected with the second driving mechanism (34) through a second connecting line, the first connecting line and the second connecting line form a connecting line bundle (24), and the rotary arm (31) is provided with a wire channel (314), and at least part of the connecting line bundle (24) is wired along the wire channel (314).

26. An adjustment mechanism (200) for a display screen (2) according to claim 25, wherein The mounting bracket (35) is provided with a first rotating hole (355) and a second rotating hole, the rotary arm (31) is provided with a first rotating shaft (317) and a second rotating shaft (318), the first rotating shaft (317) is rotatably accommodated in the first rotating hole (355), the second rotating shaft (318) is rotatably accommodated in the second rotating hole, the wire channel (314) comprises a first wire channel (315) and a second wire channel (316), the first rotating shaft (317) is internally formed with the first wire channel (315), and the second rotating shaft (318) is internally formed with the second wire channel (316).

27. Adjusting mechanism (200) of a display screen (2) according to any one of claims 16-26, wherein The mounting bracket (35) is provided with a locking piece (357), and the rotary arm (31) has a storage position, in which the locking piece (357) cooperates with the rotary arm (31) to lock the rotary arm (31) in the storage position.

28. An adjustment mechanism (200) for a display screen (2) according to claim 27, wherein The locking piece (357) comprises an electromagnet (358) and a lock tongue (359), the electromagnet (358) is mounted on the mounting bracket (35), the lock tongue (359) is movably connected with the electromagnet (358) so as to be movable between a locking position and an unlocking position, the rotary arm (31) is provided with a lock hole (319), when the electromagnet (358) is powered off, the lock tongue (359) is located at the locking position and extends into the lock hole (319), and when the electromagnet (358) is powered on, the lock tongue (359) is located at the unlocking position and is separated from the lock hole (319).

29. An adjustment mechanism (200) for a display screen (2) according to claim 28, wherein The locking tongue (359) is rotatably connected with the electromagnet (358), the locking tongue (359) comprises a locking part (360), in the locking position, the locking part (360) is located in the locking hole (319), the surface of the locking part (360) is formed with a guide inclined surface (361), the guide inclined surface (361) is used for guiding the locking part (360) to insert into or separate from the locking hole (319).

30. Adjusting mechanism (200) of a display screen (2) according to any one of claims 1-29, wherein The driving assembly (3) further comprises a damping assembly (37), the damping assembly (37) is arranged at the output shaft (343) of the second driving mechanism (34).

31. An adjustment mechanism (200) for a display screen (2) according to claim 30, wherein, The damping assembly (37) comprises a damping bracket (371) and a damping shaft (372), the housing (342) of the second driving mechanism (34) is fixed to the back side of the display screen (2), the output shaft (343) of the second driving mechanism (34) is connected with the damping shaft (372) and is relatively fixed, the damping bracket (371) is sleeved on the outer circumferential side of the damping shaft (372) and the damping shaft (372) can relatively rotate with the damping bracket (371), and the damping bracket (371) is fixed to the rotary arm (31).

32. An adjustment mechanism (200) for a display screen (2) according to claim 31, wherein The damping shaft (372) comprises a shaft body (373) and a flange plate (374), the flange plate (374) is connected on one axial side of the shaft body (373), the damping bracket (371) is sleeved on the outer circumferential side of the shaft body (373), the damping assembly (37) comprises a first gasket (375) and a nut (376), the nut (376) is located on the side of the damping bracket (371) away from the second driving mechanism (34) and is threadedly connected with the shaft body (373), the first gasket (375) is sleeved on the outer circumferential side of the shaft body (373) and is located on both axial sides of the damping bracket (371), one of the first gaskets (375) is located between the flange plate (374) and the damping bracket (371), and the other first gasket (375) is located between the nut (376) and the damping bracket (371).

33. An adjustment mechanism (200) for a display screen (2) according to claim 32, wherein The damping assembly (37) further comprises one or more spring sheets (377) arranged along the axial direction of the damping shaft (372), the spring sheet (377) is sleeved on the outer circumferential side of the shaft body (373) and is located on the side of the damping bracket (371) away from the second driving mechanism (34), and the spring sheet (377) is located between the nut (376) and the first gasket (375).

34. A seat assembly (100), wherein, A seat (1) having a seat back (11); The adjustment mechanism (200) according to any one of claims 1-33, the first driving mechanism (33) is mounted on the seat (1), and the display screen (2) is located on the back side of the seat back (11). The angle of the seat back (11) relative to the seat of the seat (1) is adjustable.

35. The seating assembly (100) of claim 34, wherein, A seat assembly (100) according to claim 34 or 35.

36. A vehicle, wherein, The seat assembly (100) according to claim 34 or 35. ​

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