Seat and vehicle

Abstract

The utility model belongs to the technical field of vehicle seats, and particularly relates to a seat and a vehicle. The seat comprises a backrest and a headrest, wherein the backrest comprises a backrest main body and a linear motion mechanism mounted in the backrest main body; the headrest comprises a headrest rod, a stroke hole extending in the height direction of the seat is formed in the front side of the backrest, the headrest rod extends in the front-back direction of the seat, and one end of the headrest rod penetrates through the stroke hole and is in transmission connection with the linear motion mechanism; the linear motion mechanism can drive the headrest rod to move in the height direction of the seat. Due to the fact that the headrest rod extends in the front-back direction of the seat, the headrest rod and the backrest do not coincide in space in the height direction of the seat, the downward adjusting stroke of the headrest is enlarged, and large-stroke height adjustment of the headrest is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle seats, in particular to a seat and a vehicle. Background Art

[0002] A seat in the related art includes a headrest and a backrest, wherein the headrest is fixed in front of the backrest, the headrest includes a headrest body and a headrest rod, the headrest body is fixed to the upper end of the headrest rod, and two rod legs of the headrest rod are inserted into the backrest along the Z direction of the seat. The headrest rod can move in the backrest along the Z direction of the seat to achieve height adjustment of the headrest.

[0003] However, in the above-mentioned seat, the headrest rod and the backrest overlap in the Z direction of the seat, resulting in a limited height adjustment stroke of the headrest. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in view of the problem that in a seat of the related art, a headrest rod and a backrest overlap in the Z direction of the seat, resulting in a limited height adjustment stroke of the headrest, a seat and a vehicle are provided.

[0005] In order to solve the above technical problems, on the one hand, the embodiment of the utility model provides a seat, including a backrest and a headrest, wherein the backrest includes a backrest body and a linear motion mechanism installed in the backrest body;

[0006] The headrest includes a headrest rod, a travel hole extending in the height direction of the seat is provided on the front side of the backrest, the headrest rod extends in the front-rear direction of the seat, one end of the headrest rod passes through the travel hole and is transmission-connected to the linear motion mechanism;

[0007] The linear motion mechanism can drive the headrest rod to move along the height direction of the seat.

[0008] Optionally, the linear motion mechanism includes a driving mechanism and a slider transmission-connected to the driving mechanism, one end of the headrest rod is connected to the slider, and the driving mechanism is used to drive the slider to slide along the height direction of the seat.

[0009] Optionally, the headrest further includes a connecting plate, wherein the connecting plate is connected to one end of the headrest rod, and the connecting plate is fixed on the sliding block.

[0010] Optionally, a first positioning hole is provided on the connecting plate, the first positioning hole has an opening toward one side of the slider, the slider is provided with a first positioning pin extending along the front and rear of the seat, the first positioning pin can be inserted into the first positioning hole when the connecting plate is installed on the slider.

[0011] Optionally, it also includes multiple bolts, the sliding block is provided with multiple connecting holes, the connecting plate is provided with multiple internal threaded holes corresponding to the multiple connecting holes, the rear side of the backrest body is provided with operating holes corresponding to the multiple connecting holes, the operating holes are for the bolts to pass through the connecting holes, and the rod of each bolt is inserted into the corresponding connecting hole and threadedly connected with the corresponding internal threaded hole.

[0012] Optionally, the driving mechanism includes a motor, a base, a screw and a nut, wherein the base is fixed in the backrest body, the screw extends along the height direction of the seat, one end of the screw is rotatably supported on the base, and the other end is connected to the output shaft of the motor, the nut is threadedly connected to the screw, and a circumferential limit structure capable of limiting the circumferential rotation of the nut is provided on the base;

[0013] The slider is fixed on the nut, or the slider and the nut are integrated.

[0014] Optionally, the base is provided with a slide rail protruding toward one side of the headrest, the slide rail extends along the height direction of the seat, the slider is slidably connected to the slide rail, and the slide rail constitutes the circumferential limiting structure.

[0015] Optionally, the backrest main body includes a backrest foam, a backrest back cover, a backrest frame, a backrest decoration and a backrest backboard, the backrest backboard is fixed at the rear of the backrest frame, the backrest foam is fixed at the front of the backrest frame, the backrest back cover is sleeved on the outer ring of the backrest frame from the front of the backrest frame, the front side of the backrest foam is provided with a decorative hole adapted to the shape of the backrest decoration, the backrest decoration is installed in the decorative hole and fixed to the backrest frame, the headrest is in contact and cooperate with the front side surface of the backrest decoration, and the travel hole is formed on the backrest decoration.

[0016] Optionally, the backrest decoration includes a decoration body and a decoration base, the decoration body is located in front of the decoration base, the decoration body and the decoration base are detachably connected, the decorative hole is adapted to the shape of the decoration body, and the decoration base is fixed to the backrest frame.

[0017] Optionally, the outer dimensions of the decoration element body are smaller than the outer dimensions of the decoration element base.

[0018] Optionally, the decoration element body is snap-connected with the decoration element base.

[0019] Optionally, the backrest frame includes a backrest cross tube, a backrest cross beam, a mechanism fixing plate and a plurality of decorative component fixing plates, the two ends of the backrest cross tube are bent downward, the backrest cross beam is connected to the lower end of the backrest cross tube to enclose a mounting area; the mechanism fixing plate is located in the mounting area and connected to the backrest cross tube, and the linear motion mechanism is mounted on the mechanism fixing plate;

[0020] A plurality of the decoration fixing plates are arranged corresponding to the outer periphery of the backrest decoration and fixed on the mechanism fixing plate, and the backrest decoration is fixed on the decoration fixing plate.

[0021] Optionally, the headrest also includes a headrest body located in front of the backrest, the headrest body is connected to the other end of the headrest rod, the headrest body includes headrest foam, a headrest surface cover, a headrest frame and a headrest decorative part, the headrest foam is fixed to the front side of the headrest frame, the headrest shaping part is mounted on the headrest frame from the front of the headrest frame, the headrest decorative part is fixed to the headrest frame and together with the headrest surface cover, covers the outer periphery of the headrest frame, and the other end of the headrest rod is connected to the headrest frame.

[0022] Optionally, the rear side surface of the headrest decorative component has an annular protrusion protruding toward one side of the backrest decorative component, and the front side surface of the backrest decorative component has a shielding edge arranged around the edge of the decorative hole, and the shielding edge protrudes toward one side of the headrest body, and the annular protrusion and the shielding edge overlap in the front-to-rear direction of the seat to jointly shield the headrest frame.

[0023] Optionally, the headrest frame includes a headrest frame base and a headrest wing frame fixed on the headrest frame base, the headrest surface cover is mounted on the headrest wing frame, the headrest decorative piece is fixed on the headrest wing frame, and the other end of the headrest rod is connected to the headrest frame base.

[0024] Optionally, the headrest decoration comprises a headrest back decoration, a left wing backboard decoration and a right wing backboard decoration, wherein the left side of the headrest back decoration partially overlaps with the left wing backboard decoration in the left-right direction of the seat, and the right side partially overlaps with the right wing backboard decoration;

[0025] In the front-rear direction of the seat, the left side of the headrest back surface trim is located in front of the left wing back panel trim, and the right side is located in front of the right wing back panel trim.

[0026] Optionally, the headrest body further includes a speaker, which is mounted on the headrest side wing frame, with a sound outlet of the speaker facing the headrest foam, and a plurality of first sound-transmitting holes are provided on the headrest foam at positions corresponding to the speakers.

[0027] Optionally, two speakers are provided, and the two speakers are respectively installed on both sides of the headrest side wing frame along the left-right direction of the seat.

[0028] Optionally, the speaker is fixed to the rear side of the headrest side wing frame, and a plurality of second sound-transmitting holes are provided on the headrest side wing frame at positions corresponding to the speakers.

[0029] Optionally, the headrest rod is a round tube, and the wire harness of the speaker passes through the round tube and penetrates into the backrest, and the wire harness of the speaker is suitable for being electrically connected to a main wire harness on the vehicle.

[0030] Optionally, the headrest side wing frame includes a fixed part, a first adjustment part and a second adjustment part, the first adjustment part and the second adjustment part are respectively located on both sides of the fixed part along the left and right directions of the seat, the first adjustment part is rotatably installed on one side of the fixed part around the height direction of the seat, the second adjustment part is rotatably installed on the other side of the fixed part around the height direction of the seat, and the two speakers are respectively installed on the first adjustment part and the second adjustment part.

[0031] In the seat of the utility model, one end of the headrest rod extending in the front-to-back direction of the seat passes through the stroke hole on the backrest and is transmission-connected with the linear motion mechanism in the backrest, and the linear motion mechanism can drive the headrest rod to move in the height direction of the seat to achieve the height adjustment of the headrest. Since the headrest rod extends in the front-to-back direction of the seat, there is no spatial overlap between the headrest rod and the backrest in the height direction of the seat, so that the height of the headrest rod is prevented from occupying the height space of the backrest, so as to increase the downward adjustment stroke of the headrest, realize the height adjustment of the headrest with a large stroke, and meet the support requirements of the head and neck with a larger height adjustment range.

[0032] On the other hand, an embodiment of the present invention provides a vehicle, comprising the above-mentioned seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of a seat provided by an embodiment of the utility model when the headrest is adjusted to the highest position;

[0034] Figure 2 yes Figure 1 A schematic diagram of the structure of the seat when the headrest is adjusted to the lowest position;

[0035] Figure 3 yes Figure 2 Exploded diagram of

[0036] Figure 4 yes Figure 2 Schematic diagram of the structure behind the hidden headrest;

[0037] Figure 5 yes Figure 4 Schematic diagram of the structure after the main body of the decorative part is hidden;

[0038] Figure 6 yes Figure 2 Rear view with the backrest hidden;

[0039] Figure 7 yes Figure 2 Assembly drawing of the linear motion mechanism and the backrest frame;

[0040] Figure 8 yes Figure 7 Rear view of

[0041] Fig. 9 yes Figure 2 A schematic diagram of the structure of the headrest;

[0042] Fig.10 yes Fig. 9 Exploded diagram of

[0043] Fig.11 yes Figure 2 Assembly drawing of the headrest frame and backrest frame in FIG.

[0044] Fig.12 yes Figure 2 Transverse cross-sectional view at the AA position.

[0045] The reference numerals in the specification are as follows:

[0046] 1. Headrest; 11. Headrest foam; 12. Headrest rod; 13. Connecting plate; 131. First positioning hole; 14. Headrest frame base; 15. Headrest wing frame; 151. First adjustment part; 152. Fixing part; 153. Second sound-transmitting hole; 16. Headrest back decorative part; 161. Annular protrusion; 17. Left wing back decorative part; 18. Right wing back decorative part; 19. Headrest body; 2. Backrest; 21. Backrest frame; 2 11. Backrest cross tube; 212. Backrest cross beam; 213. Decorative component fixing plate; 214. Mechanism fixing plate; 22. Backrest back plate; 23. Backrest foaming; 24. Decorative component base; 25. Decorative component body; 251. Blocking edge; 26. Travel hole; 27. Decorative hole; 28. Operating hole; 29. ​​Backrest back cover; 3. Linear motion mechanism; 31. Slider; 311. First positioning pin; 32. Motor; 33. Base; 34. Screw. DETAILED DESCRIPTION

[0047] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0048] An embodiment of the utility model provides a seat, comprising a backrest 2 and a headrest 1. Figure 1 is a schematic diagram of the structure of the seat when the headrest 1 is adjusted to the highest position, Figure 2 It is a schematic diagram of the structure of the seat when the headrest 1 is adjusted to the lowest position.

[0049] like Figure 3 and Figure 4 As shown, the backrest 2 includes a backrest body and a linear motion mechanism 3 installed in the backrest body. The headrest 1 includes a headrest rod 12. The backrest 2 is provided with a travel hole 26 extending in the height direction of the seat. The headrest rod 12 extends in the front-to-back direction of the seat. One end of the headrest rod 12 passes through the travel hole 26 and is transmission-connected to the linear motion mechanism 3. The "front" position refers to the side of the backrest 2 for the human body to lean on.

[0050] The linear motion mechanism 3 can drive the headrest rod 12 to move along the height direction of the seat to adjust the height direction of the headrest 1, so as to meet the head and neck support requirements of people with different body shapes or different postures, and improve the comfort of head and neck support. In addition, the height adjustment of the headrest 1 can be controlled by the physical buttons on the side panels of the seat and the virtual buttons on the central control screen.

[0051] Compared with the headrest rod 12 of the prior art that extends along the height direction of the seat, the headrest rod 12 of the utility model extends along the front-rear direction of the seat, and there is no height overlap between the headrest rod 12 and the backrest 2 in the height direction of the seat. The height adjustment stroke of the headrest 1 is not affected by the interference between the headrest rod 12 and the backrest 2, so as to increase the downward adjustment stroke of the headrest 1 and realize a large stroke height adjustment of the headrest 1, thereby meeting the height requirement of the headrest 1 in the zero gravity posture (i.e., the large lying posture) of the zero gravity seat.

[0052] It should be noted that the headrest rod 12 extending along the front-to-back direction of the seat refers to the overall extension direction of the headrest rod 12, and does not limit the headrest rod 12 to be a straight rod. The middle part of the headrest rod 12 can be a curved end with a small arc or a bent section with a small angle.

[0053] In the seat of the utility model, one end of the headrest rod 12 extending in the front-to-back direction of the seat passes through the stroke hole 26 on the backrest body and is connected to the linear motion mechanism 3 in the backrest body. The linear motion mechanism 3 can drive the headrest rod 12 to move in the height direction of the seat to achieve the height adjustment of the headrest 1. Since the headrest rod 12 extends in the front-to-back direction of the seat, there is no spatial overlap between the headrest rod 12 and the backrest 2 in the height direction of the seat, so as to avoid the height of the headrest rod 12 occupying the height space of the backrest 2, thereby increasing the downward adjustment stroke of the headrest 1, achieving a large stroke height adjustment of the headrest 1, and meeting the support requirements of the head and neck in a larger height adjustment range.

[0054] In one embodiment, if Figure 3 and Figure 7 As shown, the linear motion mechanism 3 includes a driving mechanism and a slider 31 connected to the driving mechanism, one end of the headrest rod 12 is connected to the slider 31, and the driving mechanism is used to drive the slider 31 to slide along the height direction of the seat. The slider 31 slides along the height direction of the seat as a guide for adjusting the height of the headrest 1, thereby improving the stability of the headrest 1 during the height adjustment process.

[0055] In one embodiment, if Fig. 9 and Fig.11 As shown, the headrest 1 further includes a connecting plate 13, which is connected to one end of the headrest rod 12 and is fixed to the slider 31. Whether it is welded or fixed by fasteners, the cross-sectional area of ​​the connecting plate 13 is large, which is convenient for fixing to the slider 31.

[0056] In one embodiment, if Figure 7 and Fig. 9 As shown, a first positioning hole 131 is provided on the connecting plate 13, and the first positioning hole 131 has an opening toward one side of the slider 31. The slider 31 is provided with a first positioning pin 311 extending along the front and back of the seat. The first positioning pin 311 can be inserted into the first positioning hole 131 when the connecting plate 13 is installed on the slider 31.

[0057] When the connecting plate 13 is installed on the slider 31, the first positioning pin 311 is inserted into the first positioning hole 131 to position the connecting plate 13, thereby facilitating the subsequent fixing of the connecting plate 13 on the slider 31, improving the convenience of assembly, and reducing the number of installers and labor costs.

[0058] In one embodiment, if Figures 6 to 11 As shown, it also includes multiple bolts, a plurality of connecting holes are provided on the slider 31, a plurality of internal threaded holes corresponding to the multiple connecting holes are provided on the connecting plate 13, and an operating hole 28 corresponding to the multiple connecting holes is provided on the rear side of the backrest body. The operating hole 28 is for the bolts to pass through the connecting holes, and the rod of each bolt passes through the corresponding connecting hole and is threadedly connected with the corresponding internal threaded hole.

[0059] It should be noted that the operating hole 28 corresponds to the connection hole on the slider 31 when it slides to the limit position, so as to locate the position of the slider 31. The operating hole 28 shown in the figure corresponds to the internal threaded hole on the connecting plate 13 when it slides to the lowest limit position.

[0060] In one embodiment, four bolts are provided, the slider 31 is square, the four corners of the slider 31 are provided with connecting holes, and the four corners of the connecting plate 13 are provided with internal threaded holes corresponding to the four connecting holes.

[0061] In one embodiment, if Figure 7 As shown, the driving mechanism includes a motor 32, a base 33, a screw rod 34 and a nut. The base 33 is fixed in the backrest body, the screw rod 34 extends along the height direction of the seat, one end of the screw rod 34 is rotatably supported on the base 33, and the other end is connected to the output shaft of the motor 32. The nut is threadedly connected to the screw rod 34, and a circumferential limiting structure capable of limiting the circumferential rotation of the nut is provided on the base 33.

[0062] The slider 31 is fixed on the nut, or the slider 31 and the nut are integrated. When the motor 32 drives the screw rod 34 to rotate, the nut can move linearly along the height direction of the seat, and the slider 31 moves with the nut to drive the headrest 1 to move along the height direction of the seat.

[0063] In one embodiment, the motor 32 is a Hall motor 32, which can provide real-time feedback of the current position of the headrest 1, cooperate with the seat ECU on the vehicle to memorize the position of the headrest 1, and automatically adjust the position of the headrest 1 to a preset zero-gravity posture with one click.

[0064] In one embodiment, the slider 31 and the nut are integrated, that is, the slider 31 shown in the figure is the nut, and an internal threaded hole penetrating along the height direction of the seat is provided at the center of the slider 31, and the screw rod 34 is threadedly connected in the internal threaded hole.

[0065] In one embodiment, a slide rail is provided on the base 33 and protrudes toward one side of the headrest 1. The slide rail extends along the height direction of the seat. The slider 31 is slidably connected to the slide rail, and the slide rail forms a circumferential limit structure. The structure of the slide rail is simple and easy to process.

[0066] In one embodiment, the base 33 is a plate body, and the base 33 includes a first bending section, a middle section, and a second bending section. The first bending section and the second bending section are formed by bending the middle section toward a side away from the headrest 1, so that the middle section forms the above-mentioned slide rail.

[0067] In one embodiment, if Figure 3 As shown, the backrest body includes a backrest plastic foam 23, a backrest back cover 29, a backrest frame 21, a backrest decoration and a backrest backboard 22. The backrest backboard 22 is fixed at the rear of the backrest frame 21, the backrest foam 23 is fixed at the front of the backrest frame 21, the backrest plastic part 23 is sleeved on the outer ring of the backrest frame 21 from the front of the backrest frame 21, and the front side of the backrest foam 23 is provided with a decorative hole 27 adapted to the shape of the backrest decoration. The headrest is in contact with the front side of the backrest decoration. The backrest decoration is installed in the decorative hole 27 and fixed on the backrest frame 21, and the travel hole 26 is formed on the backrest decoration.

[0068] The hardness of the backrest foam 23 is limited. Compared with the contact between the headrest 1 and the backrest foam 23, the material of the backrest decoration is harder, which is convenient for controlling the processing tolerance. The headrest 1 and the backrest decoration are in good contact with a small gap, which enhances the exquisiteness of the seat.

[0069] In one embodiment, the backrest backboard 22 is snap-connected with the backrest frame 21 .

[0070] In one embodiment, if Figures 3 to 5 As shown, the backrest decoration includes a decoration body 25 and a decoration base 24. The decoration body 25 is located in front of the decoration base 24. The decoration body 25 and the decoration base 24 are detachably connected. The decoration base 24 is fixed on the backrest frame 21, and the decorative hole 27 is adapted to the shape of the decoration body 25.

[0071] like Figure 3 As shown, both the decoration body 25 and the decoration base 24 are provided with openings, which together constitute the travel hole 26 .

[0072] The split structure of the backrest decoration can hide the connection structure between the decoration base 24 and the slider 31 under the decoration body 25 and the backrest shaping part 23, thereby improving the refinement of the seat.

[0073] In one embodiment, the decoration element body 25 is snap-fitted to the decoration element base 24 .

[0074] In one embodiment, if Figure 3 As shown, the outer dimensions of the decoration body 25 are smaller than the outer dimensions of the decoration base 24. The decoration base 24 with a larger outer dimension is closer to the outer shape of the backrest frame 21, which facilitates the design of the connection structure between the decoration base 24 and the backrest frame 21 at the periphery of the backrest frame 21, so as to avoid the linear motion mechanism 3.

[0075] In one embodiment, if Figure 6 and Figure 7 As shown, the backrest frame 21 includes a backrest transverse tube 211, a backrest cross beam 212, a mechanism fixing plate 214 and a plurality of decorative component fixing plates 213. The two ends of the backrest transverse tube 211 are bent downward, and the backrest cross beam 212 is connected to the lower end of the backrest transverse tube 211 to enclose an installation area. The mechanism fixing plate 214 is located in the installation area and connected to the backrest transverse tube 211, and the linear motion mechanism 3 is installed on the mechanism fixing plate 214.

[0076] A plurality of decoration fixing plates 213 are arranged corresponding to the outer periphery of the backrest decoration and fixed on the mechanism fixing plate 214 , and the backrest decoration is fixed on the decoration fixing plate 213 .

[0077] In one embodiment, the mechanism fixing plate 214 is welded to the backrest cross tube 211 , and the backrest cross tube 211 is welded to the backrest cross beam 212 .

[0078] In one embodiment, the mechanism fixing plate 214 is a trapezoid that is narrow at the top and wide at the bottom. Four decorative component fixing plates 213 are provided. The four decorative component fixing plates 213 are respectively fixed at the four corners of the mechanism fixing plate 214 and are arranged corresponding to the outer periphery of the decorative component base 24, so that the decorative component base 24 is firmly fixed on the backrest frame 21.

[0079] In one embodiment, the decoration member base 24 is connected to the decoration member fixing plate 213 by bolts.

[0080] In one embodiment, if Fig.10 As shown, the headrest 1 also includes a headrest body 19 located in front of the backrest 2, and the headrest body 19 is connected to the other end of the headrest rod 12. The headrest body 19 includes a headrest foam 11, a headrest cover, a headrest frame and a headrest decorative piece. The headrest foam 11 is fixed to the front side of the headrest frame, the headrest shaping piece 11 is sleeved on the outer ring of the headrest frame from the front of the headrest frame, the headrest decorative piece is fixed to the headrest frame and covers the outer periphery of the headrest frame together with the headrest cover, and the other end of the headrest rod 12 is connected to the headrest frame.

[0081] In one embodiment, if Fig.12 As shown, the rear side of the headrest decoration has an annular protrusion 161 protruding toward one side of the backrest decoration, and the front side of the backrest decoration has a shielding edge 251 arranged around the edge of the decorative hole 27, and the shielding edge 251 protrudes toward one side of the headrest body. The annular protrusion 161 and the shielding edge 251 overlap in the front and rear directions of the seat to jointly shield the headrest frame, ensure the shielding of the side of the headrest frame, avoid exposure of the headrest frame during adjustment of the headrest 1, and enhance the exquisiteness of the seat.

[0082] In one embodiment, if Fig.10 As shown, the headrest frame includes a headrest frame base 14 and a headrest wing frame 15 fixed on the headrest frame base 14, the headrest cover is sleeved on the headrest wing frame 15, the headrest decorative piece is fixed on the headrest wing frame 15, and the other end of the headrest rod 12 is connected to the headrest frame base 14. The headrest wing frame 15 supports the head laterally, thereby improving the comfort of the headrest 1.

[0083] In one embodiment, a second positioning pin is provided on the headrest side wing frame 15, and correspondingly, a second positioning hole is provided on the headrest frame base 14. When the headrest side wing frame 15 is installed on the headrest frame base 14, the second positioning pin is aligned with the second positioning hole and inserted to position the headrest side wing frame 15, so as to facilitate the subsequent fixing of the headrest side wing frame 15 on the headrest frame base 14.

[0084] In one embodiment, the headrest wing frame 15 and the headrest frame base 14 are connected by bolts.

[0085] In one embodiment, if Fig.10 As shown, the headrest decoration includes a headrest back decoration 16, a left wing back panel decoration 17 and a right wing back panel decoration 18. The left side of the headrest back decoration 16 partially overlaps with the left wing back panel decoration 17 in the left-right direction of the seat, and the right side partially overlaps with the right wing back panel decoration 18.

[0086] In the front-rear direction of the seat, the left side of the headrest back trim 16 is located in front of the left wing back trim 17 , and the right side is located in front of the right wing back trim 18 .

[0087] During assembly, the headrest back decorative piece 16 is first installed on the headrest side wing frame 15 , and then the left wing back decorative piece 17 is installed on the left side of the headrest side wing frame 15 , and the right wing back decorative piece 18 is installed on the right side of the headrest side wing frame 15 .

[0088] This design can prevent the user from accidentally touching the seam between the headrest back decorative piece 16 and the left wing decorative piece, and the seam between the headrest back decorative piece 16 and the right wing back panel decorative piece 18, thereby improving the comfort during use.

[0089] In one embodiment, the left wing back panel decoration 17 and the right wing back panel decoration 18 are both provided with third positioning pins, and the headrest side wing frame 15 is provided with corresponding third positioning holes. When the left wing back panel decoration 17 is installed on the headrest side wing frame 15, the third positioning pin on the left wing back panel decoration 17 is inserted into the corresponding third positioning hole. Similarly, when the right wing back panel decoration 18 is installed on the headrest side wing frame 15, the third positioning pin on the right wing back panel decoration 18 is inserted into the corresponding third positioning hole to perform positioning first for the convenience of subsequent installation.

[0090] In one embodiment, the headrest back decorative piece 16 , the left wing back panel decorative piece 17 and the right wing back panel decorative piece 18 are all mounted on the headrest side wing frame 15 .

[0091] In one embodiment, the headrest body further includes a speaker (not shown in the figure), which is mounted on the headrest side wing frame 15, with the speaker's sound outlet facing the headrest foam 11, and a plurality of first sound-permeable holes are provided on the headrest foam 11 at positions corresponding to the speakers. The sound emitted from the speaker's sound outlet is transmitted to the passengers through the first sound-permeable holes, which not only ensures the sound quality of the speaker, but also ensures the support of the side wall of the headrest 1. Moreover, the speaker arranged on the headrest 1 is close to the ears of the passengers, which improves the experience of calls and entertainment while ensuring private calls.

[0092] During assembly, the loudspeaker is first installed on the headrest side wing frame 15 , and then the headrest side wing frame 15 is assembled on the headrest frame base 14 .

[0093] In one embodiment, the plurality of first sound-transmitting holes are distributed in a matrix.

[0094] In one embodiment, two speakers are provided, and the two speakers are respectively installed on both sides of the headrest side wing frame 15 along the left-right direction of the seat.

[0095] In addition, left and right labels can be attached to the two speakers to avoid incorrect speaker assembly.

[0096] In one embodiment, if Fig.10 and Fig.11 As shown, the speaker is fixed to the rear side of the headrest wing frame 15, and a plurality of second sound-permeable holes 153 are provided on the headrest wing frame 15 at positions corresponding to the speaker. Since the speaker's sound outlet has no protective shell, compared with the case where the speaker is installed on the front side of the headrest wing frame 15, the headrest molding 11 is easily squeezed and damaged after being deformed by pressure. For the speaker fixed to the rear side of the headrest wing frame 15, the headrest wing frame 15 can protect the sound outlet and improve the safety of the speaker.

[0097] In one embodiment, the headrest rod 12 is a round tube, and the wire harness of the speaker passes through the round tube and penetrates into the backrest 2. The wire harness of the speaker is suitable for being electrically connected to the main wire harness on the vehicle.

[0098] In one embodiment, if Fig.11 As shown, the headrest side wing frame 15 includes a fixing portion 152, a first adjusting portion 151 and a second adjusting portion. The first adjusting portion 151 and the second adjusting portion are respectively located on both sides of the fixing portion 152 along the left-right direction of the seat. The first adjusting portion 151 is rotatably installed on one side of the fixing portion 152 around the height direction of the seat, and the second adjusting portion is rotatably installed on the other side of the fixing portion 152 around the height direction of the seat. Two speakers are respectively installed on the first adjusting portion 151 and the second adjusting portion.

[0099] The first adjustment part 151 and the second adjustment part can be rotated to laterally support heads of different sizes, further improving the comfort of head support. The speakers arranged on the first adjustment part 151 and the second adjustment part can rotate accordingly to adapt to heads of different sizes and ensure the sound effect.

[0100] The first adjustment portion 151 is usually rotatably mounted on one side of the fixed portion 152 via a damping hinge, and the second adjustment portion is usually rotatably mounted on the other side of the fixed portion 152 via a damping hinge.

[0101] In other embodiments, the linear motion mechanism 3 may only include a driving mechanism, and the output end of the driving mechanism is directly connected to the headrest rod 12. For example, the driving mechanism only includes a linear motor 32, and the output shaft of the linear motor 32 is directly connected to the headrest rod 12.

[0102] In other embodiments, the connecting plate 13 may be omitted, and the other end of the headrest rod 12 may be directly fixed on the slider 31 .

[0103] In other embodiments, the connecting plate 13 may be fixed to the sliding block 31 by welding, riveting or clamping.

[0104] In other embodiments, the circumferential limiting structure may include two groups of limiting shafts, each group of limiting shafts includes a plurality of limiting shafts spaced apart along the height direction of the seat, the limiting shafts extend along the left-right direction of the seat, and both side surfaces of the slider 31 along the left-right direction of the seat are provided with sliding grooves extending along the height direction of the seat, one end of one group of limiting shafts is inserted into the sliding groove on one side of the slider 31, and one end of the other group of limiting shafts is inserted into the sliding groove on the other side of the slider 31, so as to limit the axial rotation of the slider 31 through the two groups of limiting shafts.

[0105] In other embodiments, the backrest decoration piece may be omitted, and the travel hole 26 may be provided on the backrest shaping piece 23 .

[0106] In other embodiments, the headrest side wing frame 15 may be omitted, or replaced with a fixed headrest side wing frame 15 .

[0107] In addition, an embodiment of the present invention provides a vehicle, comprising the seat of the above embodiment.

[0108] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A seat, characterized in that: It comprises a backrest (2) and a headrest (1), wherein the backrest (2) comprises a backrest body and a linear motion mechanism (3) installed in the backrest body; The headrest (1) comprises a headrest rod (12), a travel hole (26) extending in the height direction of the seat is arranged on the front side of the backrest (2), the headrest rod (12) extends in the front-rear direction of the seat, one end of the headrest rod (12) passes through the travel hole (26) and is transmission-connected to the linear motion mechanism (3); The linear motion mechanism (3) can drive the headrest rod (12) to move along the height direction of the seat.

2. The seat according to claim 1, characterized in that: The linear motion mechanism (3) comprises a driving mechanism and a slider (31) connected to the driving mechanism in a transmission manner; one end of the headrest rod (12) is connected to the slider (31); and the driving mechanism is used to drive the slider (31) to slide along the height direction of the seat.

3. The seat according to claim 2, characterized in that: The headrest (1) further comprises a connecting plate (13), wherein the connecting plate (13) is connected to one end of the headrest rod (12), and the connecting plate (13) is fixed on the sliding block (31).

4. The seat according to claim 3, characterized in that: The connecting plate (13) is provided with a first positioning hole (131), the first positioning hole (131) having an opening facing one side of the sliding block (31), the sliding block (31) being provided with a first positioning pin (311) extending along the front and rear of the seat, the first positioning pin (311) being capable of being inserted into the first positioning hole (131) when the connecting plate (13) is mounted on the sliding block (31).

5. The seat according to claim 3, characterized in that: It also includes a plurality of bolts, the slider (31) is provided with a plurality of connecting holes, the connecting plate (13) is provided with a plurality of internal threaded holes corresponding to the plurality of connecting holes, the rear side of the backrest body is provided with operating holes (28) corresponding to the plurality of connecting holes, the operating holes (28) are for the bolts to pass through the connecting holes, and the rod of each bolt passes through the corresponding connecting hole and is threadedly connected to the corresponding internal threaded hole.

6. The seat according to claim 2, characterized in that: The driving mechanism comprises a motor (32), a base (33), a screw rod (34) and a nut, wherein the base (33) is fixed in the backrest body, the screw rod (34) extends along the height direction of the seat, one end of the screw rod (34) is rotatably supported on the base (33), and the other end is connected to the output shaft of the motor (32), the nut is threadedly connected to the screw rod (34), and a circumferential limiting structure capable of limiting the circumferential rotation of the nut is provided on the base (33); The slider (31) is fixed on the nut, or the slider (31) and the nut are integral.

7. The seat according to claim 6, characterized in that The base (33) is provided with a slide rail protruding toward one side of the headrest (1), the slide rail extends along the height direction of the seat, the slider (31) is slidably connected to the slide rail, and the slide rail constitutes the circumferential limiting structure.

8. The seat according to claim 1, characterized in that: The backrest body comprises a backrest foam (23), a backrest back cover (29), a backrest frame (21), a backrest decoration and a backrest backboard (22); the backrest backboard (22) is fixed to the rear of the backrest frame (21); the backrest foam (23) is fixed to the front of the backrest frame (21); the backrest back cover (29) is sleeved on the outer ring of the backrest frame (21) from the front of the backrest frame (21); the front side of the backrest foam (23) is provided with a decorative hole (27) adapted to the shape of the backrest decoration; the backrest decoration is installed in the decorative hole (27) and fixed to the backrest frame (21); the headrest (1) is in contact with the front side of the backrest decoration; and the travel hole (26) is formed on the backrest decoration.

9. The seat according to claim 8, characterized in that The backrest decoration comprises a decoration body (25) and a decoration base (24); the decoration body (25) is located in front of the decoration base (24); the decoration body (25) and the decoration base (24) are detachably connected; the decoration hole (27) is adapted to the shape of the decoration body (25); and the decoration base (24) is fixed on the backrest frame (21).

10. The seat according to claim 9, characterized in that The outer dimensions of the decoration element main body (25) are smaller than the outer dimensions of the decoration element base (24).

11. The seat according to claim 9, characterized in that The decoration element main body (25) is snap-connected with the decoration element base (24).

12. The seat according to claim 8, characterized in that The backrest frame (21) comprises a backrest transverse tube (211), a backrest cross beam (212), a mechanism fixing plate (214) and a plurality of decorative component fixing plates (213); the two ends of the backrest transverse tube (211) are bent downward; the backrest cross beam (212) is connected to the lower end of the backrest transverse tube (211) to enclose a mounting area; the mechanism fixing plate (214) is located in the mounting area and connected to the backrest transverse tube (211); the linear motion mechanism (3) is mounted on the mechanism fixing plate (214); A plurality of the decoration fixing plates (213) are arranged corresponding to the outer periphery of the backrest decoration and fixed on the mechanism fixing plate (214), and the backrest decoration is fixed on the decoration fixing plate (213).

13. The seat according to claim 8, characterized in that The headrest (1) also includes a headrest body (19) located in front of the backrest (2), the headrest body (19) is connected to the other end of the headrest rod (12), the headrest body (19) includes a headrest foam (11), a headrest cover, a headrest frame and a headrest decorative piece, the headrest foam (11) is fixed to the front side of the headrest frame, the headrest cover is sleeved on the outer ring of the headrest frame from the front of the headrest frame, the headrest decorative piece is fixed to the headrest frame and covers the outer periphery of the headrest frame together with the headrest cover, and the other end of the headrest rod (12) is connected to the headrest frame.

14. The seat according to claim 13, characterized in that The rear side surface of the headrest decorative component has an annular protrusion (161) protruding toward one side of the backrest decorative component, and the front side surface of the backrest decorative component has a shielding edge (251) arranged around the edge of the decorative hole (27), and the shielding edge (251) protrudes toward one side of the headrest body (19), and the annular protrusion (161) and the shielding edge (251) overlap in the front-rear direction of the seat to jointly shield the headrest frame.

15. The seat according to claim 13, characterized in that The headrest frame comprises a headrest frame base (14) and a headrest wing frame (15) fixed on the headrest frame base (14); the headrest surface cover is sleeved on the headrest wing frame (15); the headrest decorative part is fixed on the headrest wing frame (15); and the other end of the headrest rod (12) is connected to the headrest frame base (14).

16. The seat according to claim 15, characterized in that The headrest decorative part comprises a headrest back decorative part (16), a left side wing back decorative part (17) and a right side wing back decorative part (18); the left side of the headrest back decorative part (16) partially overlaps with the left side wing back decorative part (17) in the left-right direction of the seat, and the right side partially overlaps with the right side wing back decorative part (18); In the front-rear direction of the seat, the left side of the headrest back decorative piece (16) is located in front of the left wing back decorative piece (17), and the right side is located in front of the right wing back decorative piece (18).

17. The seat according to claim 15, characterized in that The headrest body (19) also includes a speaker, which is mounted on the headrest side wing frame (15), with the sound outlet of the speaker facing the headrest foam (11), and a plurality of first sound-transmitting holes are provided on the headrest foam (11) at positions corresponding to the speakers.

18. The seat according to claim 17, characterized in that Two speakers are provided, and the two speakers are respectively installed on both sides of the headrest side wing frame (15) along the left-right direction of the seat.

19. The seat according to claim 17, characterized in that The loudspeaker is fixed to the rear side of the headrest side wing frame (15), and a plurality of second sound-transmitting holes (153) are provided on the headrest side wing frame (15) at positions corresponding to the loudspeakers.

20. The seat according to claim 17, characterized in that The headrest rod (12) is a round tube, the wire harness of the speaker passes through the round tube and penetrates into the backrest (2), and the wire harness of the speaker is suitable for being electrically connected to a main wire harness on a vehicle.

21. The seat according to claim 18, characterized in that The headrest side wing frame (15) comprises a fixing portion (152), a first adjustment portion (151) and a second adjustment portion, wherein the first adjustment portion (151) and the second adjustment portion are respectively located on both sides of the fixing portion (152) along the left-right direction of the seat, the first adjustment portion (151) is rotatably mounted on one side of the fixing portion (152) around the height direction of the seat, and the second adjustment portion is rotatably mounted on the other side of the fixing portion (152) around the height direction of the seat, and the two speakers are respectively mounted on the first adjustment portion (151) and the second adjustment portion.

22. A vehicle, characterized in that: A seat comprising any one of claims 1-21.

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