Seat and vehicle

Abstract

A seat, and a vehicle comprising a seat. The seat comprises a backrest (2) and a headrest (1), wherein the backrest (2) comprises a backrest main body (20) and a linear motion mechanism (3) mounted inside the backrest main body; the headrest (1) comprises a headrest rod (12); a travel hole (26) extending in the height direction of the seat (100) is formed in the front side of the backrest (2); the headrest rod (12) extends in the front-rear direction of the seat (100), and has one end passing through the travel hole (26) and in transmission connection with the linear motion mechanism (3); and the linear motion mechanism (3) can drive the headrest rod (12) to move in the height direction of the seat (100). The headrest rod does not spatially overlap with the backrest in the height direction of the seat, which increases the downward adjustment travel of the headrest to achieve large-travel height adjustment of the headrest.

Description

A type of seat and vehicle

[0001] Cross-references to related applications

[0002] This application is based on and claims priority to Chinese Patent Application No. 202421215527.1, filed on May 30, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of vehicle seat technology, specifically, to a seat and a vehicle. Background Technology

[0004] One type of seat in the related technology includes a headrest and a backrest. The headrest is fixed to the front of the backrest and includes a headrest body and a headrest rod. The headrest body is fixed to the upper end of the headrest rod, and the two legs of the headrest rod are inserted into the backrest along the Z-axis of the seat. The headrest rod can move within the backrest along the Z-axis of the seat to achieve headrest height adjustment.

[0005] However, in the aforementioned seats, the headrest rod and the backrest overlap in the Z-direction of the seat, resulting in limited height adjustment range of the headrest. Summary of the Invention

[0006] The technical problem to be solved by this application is: in the related technology of seats, the headrest rod and the backrest overlap in the Z direction of the seat, resulting in a limited height adjustment range of the headrest, so a seat and vehicle are provided.

[0007] To solve the above-mentioned technical problems, on the one hand, embodiments of this application provide 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;

[0008] The headrest includes a headrest rod, and the front side of the backrest is provided with a travel hole extending along the height direction of the seat. The headrest rod extends along the front-back direction of the seat, and one end of the headrest rod passes through the travel hole and is connected to the linear motion mechanism.

[0009] The linear motion mechanism can drive the headrest rod to move along the height direction of the seat.

[0010] Optionally, the linear motion mechanism includes a drive mechanism and a slider that is driven by the drive mechanism. One end of the headrest rod is connected to the slider, and the drive mechanism is used to drive the slider to slide along the height direction of the seat.

[0011] Optionally, the headrest also includes a connecting plate connected to one end of the headrest rod, and the connecting plate is fixed to the slider.

[0012] Optionally, a first positioning hole is provided on the connecting plate, the first positioning hole having an opening facing the slider side, and a first positioning pin is provided on the slider extending along the front and rear of the seat, the first positioning pin being able to be inserted into the first positioning hole when the connecting plate is mounted on the slider.

[0013] Optionally, it also includes multiple bolts, the slider 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 an operating hole corresponding to the multiple connecting holes, the operating hole allows the bolt to pass through the connecting hole, and the shank of each bolt passes through the corresponding connecting hole and is threadedly connected to the corresponding internal threaded hole.

[0014] Optionally, the drive mechanism includes a motor, a base, a lead screw, and a nut. The base is fixed inside the backrest body. The lead screw extends along the height direction of the seat. One end of the lead 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 lead screw. The base is provided with a circumferential limiting structure that can restrict the circumferential rotation of the nut.

[0015] The slider is fixed to the nut, or the slider and the nut are integral.

[0016] Optionally, the base is provided with a slide rail protruding towards 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.

[0017] Optionally, the backrest body includes a backrest foam, a backrest cover, a backrest frame, a backrest decorative piece, and a backrest panel. The backrest panel is fixed to the rear of the backrest frame, the backrest foam is fixed to the front of the backrest frame, the backrest cover is fitted onto the outer ring of the backrest frame from the front, the front side of the backrest foam has a decorative hole adapted to the shape of the backrest decorative piece, the backrest decorative piece is installed in the decorative hole and fixed to the backrest frame, the headrest contacts and engages with the front side of the backrest decorative piece, and the travel hole is formed on the backrest decorative piece.

[0018] Optionally, the backrest decorative component includes a decorative component body and a decorative component base. The decorative component body is located in front of the decorative component base. The decorative component body and the decorative component base are detachably connected. The decorative hole is adapted to the shape of the decorative component body. The decorative component base is fixed to the backrest frame.

[0019] Optionally, the external dimensions of the main body of the decorative element are smaller than the external dimensions of the base of the decorative element.

[0020] Optionally, the main body of the decorative element is snapped into the base of the decorative element.

[0021] Optionally, the backrest frame includes a backrest cross tube, a backrest beam, a mechanism fixing plate, and multiple decorative fixing plates. The two ends of the backrest cross tube are bent downwards, and the backrest beam is connected to the lower end of the backrest cross tube to form an installation area. The mechanism fixing plate is located in the installation area and connected to the backrest cross tube, and the linear motion mechanism is mounted on the mechanism fixing plate.

[0022] Multiple decorative element fixing plates are disposed on the outer periphery of the backrest decorative element and fixed on the mechanism fixing plate, and the backrest decorative element is fixed on the decorative element fixing plate.

[0023] 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, headrest cover, headrest frame, and headrest decorative parts. The headrest foam is fixed to the front side of the headrest frame. The headrest shaping part is fitted onto the headrest frame from the front. The headrest decorative parts are fixed to the headrest frame and together with the headrest cover cover the outer periphery of the headrest frame. The other end of the headrest rod is connected to the headrest frame.

[0024] Optionally, the rear side of the headrest trim has an annular protrusion protruding toward one side of the backrest trim, and the front side of the backrest trim has a shielding edge surrounding the edge of the trim hole. The shielding edge protrudes toward one side of the headrest body, and the annular protrusion and the shielding edge overlap in the front-back direction of the seat to jointly shield the headrest frame.

[0025] Optionally, the headrest frame includes a headrest frame base and a headrest side wing frame fixed on the headrest frame base. The headrest cover is fitted onto the headrest side wing frame, the headrest decorative piece is fixed to the headrest side wing frame, and the other end of the headrest rod is connected to the headrest frame base.

[0026] Optionally, the headrest trim includes a headrest back trim, a left wing back panel trim, and a right wing back panel trim. The left side of the headrest back trim partially overlaps with the left wing back panel trim in the left-right direction of the seat, and the right side partially overlaps with the right wing back panel trim.

[0027] In the fore-aft direction of the seat, the left side of the headrest back panel 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.

[0028] Optionally, the headrest body also includes a speaker, which is mounted on the side wing frame of the headrest. The speaker's sound outlet faces the headrest foam, and the headrest foam has a plurality of first sound-transmitting holes corresponding to the position of the speaker.

[0029] Optionally, two speakers are provided, with the two speakers respectively mounted on both sides of the headrest side wing frame along the left-right direction of the seat.

[0030] Optionally, the speaker is fixed to the rear side of the headrest side wing frame, and the headrest side wing frame is provided with a plurality of second sound transmission holes corresponding to the position of the speaker.

[0031] Optionally, the headrest rod is a round tube, and the speaker wiring harness passes through the round tube and into the backrest. The speaker wiring harness is adapted to be electrically connected to the main wiring harness on the vehicle.

[0032] Optionally, the headrest side wing frame includes a fixed part, a first adjusting part, and a second adjusting part. The first adjusting part and the second adjusting part are respectively located on both sides of the fixed part along the left-right direction of the seat. The first adjusting part is rotatably mounted on one side of the fixed part about the height direction of the seat, and the second adjusting part is rotatably mounted on the other side of the fixed part about the height direction of the seat. The two speakers are respectively mounted on the first adjusting part and the second adjusting part.

[0033] In the seat of this application, one end of a headrest rod extending along the fore-and-aft direction of the seat passes through a travel hole on the backrest and is connected to a linear motion mechanism inside the backrest. The linear motion mechanism can drive the headrest rod to move along the height direction of the seat to achieve headrest height adjustment. Since the headrest rod extends along the fore-and-aft direction of the seat, the headrest rod and the backrest do not overlap in the height direction of the seat, avoiding the height of the headrest rod occupying the height space of the backrest, thereby increasing the downward adjustment travel of the headrest and achieving a large range of headrest height adjustment to meet the support needs of the head and neck with a wider height adjustment range.

[0034] On the other hand, embodiments of this application provide a vehicle including the aforementioned seat.

[0035] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0036] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present application and, together with their description, serve to explain the principles of the present application.

[0037] Figure 1 is a structural schematic diagram of a seat provided in an embodiment of this application when the headrest is adjusted to the highest position;

[0038] Figure 2 is a structural schematic diagram of the seat in Figure 1 when the headrest is adjusted to the lowest position;

[0039] Figure 3 is an exploded view of Figure 2;

[0040] Figure 4 is a schematic diagram of the structure after the headrest in Figure 2 is hidden;

[0041] Figure 5 is a structural diagram of the main body of the hidden decorative component in Figure 4;

[0042] Figure 6 is a rear view of Figure 2 after the backrest panel is hidden;

[0043] Figure 7 is an assembly diagram of the linear motion mechanism and backrest frame in Figure 2;

[0044] Figure 8 is a rear view of Figure 7;

[0045] Figure 9 is a schematic diagram of the headrest in Figure 2;

[0046] Figure 10 is an exploded view of Figure 9;

[0047] Figure 11 is an assembly diagram of the headrest frame and backrest frame in Figure 2;

[0048] Figure 12 is a cross-sectional view of position AA in Figure 2.

[0049] The reference numerals in the accompanying drawings are as follows: 100. Seat; 1. Headrest; 11. Headrest foam; 12. Headrest rod; 13. Connecting plate; 131. First positioning hole; 132. Internal threaded hole; 14. Headrest frame base; 15. Headrest side wing frame; 151. First adjustment part; 152. Fixing part; 153. Second sound transmission hole; 16. Headrest back decoration; 161. Annular protrusion; 17. Left side wing back panel decoration; 18. Right side wing back panel decoration; 19. Headrest body; 2. Backrest; 20. Backrest body; 21. Backrest frame; 211. Backrest cross tube; 212. Backrest crossbeam; 213. 214. Decorative component fixing plate; 22. Backrest back panel; 23. Backrest foam; 240. Backrest decorative component; 24. Decorative component base; 25. Decorative component body; 251. Covering edge; 26. Stroke hole; 27. Decorative hole; 28. Operating hole; 29. ​​Backrest back cover; 3. Linear motion mechanism; 30. Drive mechanism; 31. Slider; 310. Connecting hole; 311. First positioning pin; 32. Motor; 33. Base; 34. Lead screw. Detailed Implementation

[0050] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0051] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0052] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0053] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0054] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0055] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0056] One embodiment of this application provides a seat 100, including a backrest 2 and a headrest 1. Figure 1 is a structural schematic diagram of the seat 100 when the headrest 1 is adjusted to the highest position, and Figure 2 is a structural schematic diagram of the seat 100 when the headrest 1 is adjusted to the lowest position.

[0057] As shown in Figures 2, 3, and 4, the backrest 2 includes a backrest body 20 and a linear motion mechanism 3 installed within the backrest body 20. The headrest 1 includes a headrest rod 12. The backrest 2 has a travel hole 26 extending along the height direction of the seat 100. The headrest rod 12 extends along the front-back direction of the seat 100, and one end of the headrest rod 12 passes through the travel hole 26 and is connected to the linear motion mechanism 3. The "front" orientation refers to the side of the backrest 2 that the human body leans against.

[0058] The linear motion mechanism 3 can drive the headrest rod 12 to move along the height direction of the seat 100, thereby adjusting the height of the headrest 1 to meet the head and neck support needs of people of different body types or postures, and improve the comfort of head and neck support. In addition, the height adjustment of the headrest 1 can be controlled by physical buttons on the side panel of the seat 100 and virtual buttons on the central control screen.

[0059] Compared to the headrest rod 12 of the related technology which extends along the height direction of the seat 100, the headrest rod 12 of this application extends along the front-back direction of the seat 100. The headrest rod 12 does not overlap with the backrest 2 in the height direction of the seat 100. The height adjustment range 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 range of the headrest 1 and realize the large range height adjustment of the headrest 1, so as to meet the height requirements of the headrest 1 in the zero-gravity posture (i.e., the reclining posture) of the zero-gravity seat 100.

[0060] It should be noted that when it is said that the headrest rod 12 extends along the front-back direction of the seat 100, it refers to the overall extension direction of the headrest rod 12, and does not limit the headrest rod 12 to 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.

[0061] In the seat 100 of this application, one end of the headrest rod 12 extending along the front-back direction of the seat 100 passes through the travel hole 26 on the backrest body 20 and is connected to the linear motion mechanism 3 inside the backrest body 20. The linear motion mechanism 3 can drive the headrest rod 12 to move along the height direction of the seat 100 to realize the height adjustment of the headrest 1. Since the headrest rod 12 extends along the front-back direction of the seat 100, the headrest rod 12 and the backrest 2 do not overlap in the height direction of the seat 100, avoiding the height of the headrest rod 12 occupying the height space of the backrest 2, thereby increasing the downward adjustment travel of the headrest 1, realizing a large travel height adjustment of the headrest 1, and meeting the support needs of the head and neck with a larger height adjustment range.

[0062] In one embodiment, as shown in Figures 3 and 7, the linear motion mechanism 3 includes a drive mechanism 30 and a slider 31 that is pulsatorically connected to the drive mechanism 30. One end of the headrest rod 12 is connected to the slider 31. The drive mechanism 30 is used to drive the slider 31 to slide along the height direction of the seat 100. The guide sliding of the slider 31 along the height direction of the seat 100 is used to guide the height adjustment of the headrest 1, thereby improving the stability of the headrest 1 during the height adjustment process.

[0063] In one embodiment, as shown in Figures 9 and 11, 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 welded or fixed by fasteners, the connecting plate 13 has a large cross-sectional area, making it easy to fix to the slider 31.

[0064] In one embodiment, as shown in Figures 7 and 9, a first positioning hole 131 is provided on the connecting plate 13. The first positioning hole 131 has an opening facing the slider 31. A first positioning pin 311 is provided on the slider 31, extending along the front and rear of the seat 100. 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.

[0065] When the connecting plate 13 is installed on the slider 31, the connecting plate 13 is positioned by inserting the first positioning pin 311 into the first positioning hole 131, which facilitates the subsequent fixing of the connecting plate 13 onto the slider 31, improves the convenience of assembly, and reduces the number of installers and labor costs.

[0066] In one embodiment, as shown in Figures 6 to 11, a plurality of bolts are also included. The slider 31 is provided with a plurality of connecting holes 310. The connecting plate 13 is provided with a plurality of internal threaded holes 132 corresponding to the plurality of connecting holes 310. The rear side of the backrest body 20 is provided with an operating hole 28 corresponding to the plurality of connecting holes 310. The operating hole 28 allows the bolts to pass through the connecting holes 310. The shank of each bolt passes through the corresponding connecting hole 310 and is threadedly connected to the corresponding internal threaded hole 132.

[0067] It should be noted that the operating hole 28 corresponds to the connecting hole 310 on the slider 31 when it slides to its limit position, so as to facilitate the positioning of the slider 31. The operating hole 28 shown in the figure corresponds to the internal thread hole 132 on the connecting plate 13 when it slides to its lowest limit position.

[0068] In one embodiment, four bolts are provided, the slider 31 is square, and the slider 31 has connecting holes 310 at its four corners. The connecting plate 13 has internal threaded holes 132 at its four corners that correspond one-to-one with the four connecting holes 310.

[0069] In one embodiment, as shown in FIG7, the drive mechanism 30 includes a motor 32, a base 33, a lead screw 34 and a nut. The base 33 is fixed inside the backrest body 20. The lead screw 34 extends along the height direction of the seat 100. One end of the lead screw 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 lead screw 34. The base 33 is provided with a circumferential limiting structure that can restrict the circumferential rotation of the nut.

[0070] The slider 31 is fixed to the nut, or the slider 31 and the nut are integrated. When the motor 32 drives the lead screw 34 to rotate, the nut can move linearly along the height direction of the seat 100, and the slider 31 moves with the nut to drive the headrest 1 to move along the height direction of the seat 100.

[0071] In one embodiment, the motor 32 is a Hall motor 32, which can provide real-time feedback on the current position of the headrest 1. It can cooperate with the ECU of the seat 100 in the vehicle to memorize the position of the headrest 1 and automatically adjust it to the preset zero-gravity posture position with one click.

[0072] In one embodiment, the slider 31 and the nut are integrated, that is, the slider 31 shown in the figure is the nut. The center of the slider 31 is provided with an internal threaded hole 132 that extends along the height direction of the seat 100, and the lead screw 34 is threadedly connected in the internal threaded hole 132.

[0073] In one embodiment, a slide rail protruding towards the headrest 1 is provided on the base 33. The slide rail extends along the height direction of the seat 100, and the slider 31 is slidably connected to the slide rail. The slide rail constitutes a circumferential limiting structure. The slide rail has a simple structure and is easy to manufacture.

[0074] In one embodiment, the base 33 is a plate, and the base 33 includes a first bent section, a middle section and a second bent section. The first bent section and the second bent section are formed by bending the middle section toward the side away from the headrest 1, so that the middle section forms the slide rail mentioned above.

[0075] In one embodiment, as shown in FIG3, the backrest body 20 includes a backrest foam 23, a backrest cover 29, a backrest frame 21, a backrest decorative piece 240, and a backrest back panel 22. The backrest back panel 22 is fixed to the rear of the backrest frame 21, and the backrest foam 23 is fixed to the front of the backrest frame 21. The backrest foam 23 is fitted onto the outer ring of the backrest frame 21 from the front. The front side of the backrest foam 23 is provided with a decorative hole 27 that matches the shape of the backrest decorative piece 240. The headrest contacts and engages with the front side of the backrest decorative piece 240. The backrest decorative piece 240 is installed in the decorative hole 27 and fixed on the backrest frame 21. A travel hole 26 is formed on the backrest decorative piece 240.

[0076] The backrest foam 23 has limited hardness. Compared to the headrest 1, which is in contact with the backrest foam 23, the backrest decorative part 240 is made of a harder material, which makes it easier to control the processing tolerance. The headrest 1 and the backrest decorative part 240 have good contact with each other and the gap is small, which enhances the exquisite feel of the seat 100.

[0077] In one embodiment, the backrest panel 22 is snapped together with the backrest frame 21.

[0078] In one embodiment, as shown in Figures 3 to 5, the backrest decorative component 240 includes a decorative component body 25 and a decorative component base 24. The decorative component body 25 is located in front of the decorative component base 24. The decorative component body 25 and the decorative component base 24 are detachably connected. The decorative component base 24 is fixed on the backrest frame 21. The decorative hole 27 is adapted to the shape of the decorative component body 25.

[0079] As shown in Figure 3, both the main body 25 and the base 24 of the decorative part are provided with openings, which together constitute the aforementioned travel hole 26.

[0080] The split-structure backrest trim 240 can hide the connection structure between the trim base 24 and the slider 31 under the trim body 25 and the backrest molding 23, thereby improving the sophistication of the seat 100.

[0081] In one embodiment, the decorative body 25 is snapped into the decorative base 24.

[0082] In one embodiment, as shown in FIG3, the external dimensions of the decorative component body 25 are smaller than those of the decorative component base 24. The larger external dimensions of the decorative component base 24 are closer to the shape of the backrest frame 21, which makes it easier to design the connection structure between the decorative component base 24 and the backrest frame 21 on the periphery of the backrest frame 21, thus avoiding the linear motion mechanism 3.

[0083] In one embodiment, as shown in Figures 6 and 7, the backrest frame 21 includes a backrest horizontal tube 211, a backrest crossbeam 212, a mechanism fixing plate 214, and multiple decorative component fixing plates 213. The two ends of the backrest horizontal tube 211 are bent downwards, and the backrest crossbeam 212 connects to the lower end of the backrest horizontal tube 211 to form an installation area. The mechanism fixing plate 214 is located within the installation area and connected to the backrest horizontal tube 211. The linear motion mechanism 3 is mounted on the mechanism fixing plate 214.

[0084] Multiple decorative fixing plates 213 are set on the outer periphery of the backrest decorative piece 240 and fixed on the mechanism fixing plate 214, and the backrest decorative piece 240 is fixed on the decorative fixing plate 213.

[0085] 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.

[0086] In one embodiment, the mechanism fixing plate 214 is a trapezoid with a narrow top and a wide bottom. Four decorative fixing plates 213 are provided. The four decorative fixing plates 213 are respectively fixed at the four corners of the mechanism fixing plate 214 and are provided on the outer periphery of the decorative base 24, so that the decorative base 24 is firmly fixed on the backrest frame 21.

[0087] In one embodiment, the decorative base 24 and the decorative fixing plate 213 are connected by bolts.

[0088] In one embodiment, as shown in FIG10, the headrest 1 further 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 fitted onto the outer ring of the headrest frame from the front, the headrest decorative piece is fixed to the headrest frame and together with the headrest cover covers the outer periphery of the headrest frame, and the other end of the headrest rod 12 is connected to the headrest frame.

[0089] In one embodiment, as shown in FIG12, the rear side of the headrest trim has an annular protrusion 161 protruding toward the backrest trim 240, and the front side of the backrest trim 240 has a shielding edge 251 arranged around the edge of the trim hole 27. The shielding edge 251 protrudes toward the headrest body. The annular protrusion 161 and the shielding edge 251 overlap in the front-rear direction of the seat 100 to jointly shield the headrest frame, ensuring the shielding of the side of the headrest frame, preventing the headrest frame from being exposed during the adjustment of the headrest 1, and enhancing the refinement of the seat 100.

[0090] In one embodiment, as shown in FIG10, the headrest frame includes a headrest frame base 14 and a headrest side wing frame 15 fixed to the headrest frame base 14. The headrest cover is fitted onto the headrest side wing frame 15, and the headrest decorative piece is fixed to the headrest side wing frame 15. The other end of the headrest rod 12 is connected to the headrest frame base 14. The headrest side wing frame 15 provides lateral support to the head, improving the comfort of the headrest 1.

[0091] 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.

[0092] In one embodiment, the headrest side wing frame 15 and the headrest frame base 14 are connected by bolts.

[0093] In one embodiment, as shown in FIG10, the headrest trim includes a headrest back trim 16, a left wing back panel trim 17, and a right wing back panel trim 18. The left side of the headrest back trim 16 partially overlaps with the left wing back panel trim 17 in the left-right direction of the seat 100, and the right side partially overlaps with the right wing back panel trim 18.

[0094] In the fore-and-aft direction of the seat 100, the left side of the headrest back panel trim 16 is in front of the left wing back panel trim 17, and the right side is in front of the right wing back panel trim 18.

[0095] During assembly, first install the headrest back decoration 16 onto the headrest side wing frame 15, then install the left side wing back panel decoration 17 onto the left side of the headrest side wing frame 15, and install the right side wing back panel decoration 18 onto the right side of the headrest side wing frame 15.

[0096] This design avoids users accidentally touching the seam between the headrest back trim 16 and the left wing trim, and the seam between the headrest back trim 16 and the right wing back panel trim 18, thus improving comfort during use.

[0097] In one embodiment, both the left wing back panel trim 17 and the right wing back panel trim 18 are provided with third positioning pins, and the headrest side wing frame 15 is provided with corresponding third positioning holes. When installing the left wing back panel trim 17 onto the headrest side wing frame 15, the third positioning pin on the left wing back panel trim 17 is inserted into the corresponding third positioning hole. Similarly, when installing the right wing back panel trim 18 onto the headrest side wing frame 15, the third positioning pin on the right wing back panel trim 18 is inserted into the corresponding third positioning hole for initial positioning, facilitating subsequent installation.

[0098] In one embodiment, the headrest back decoration 16, the left wing back panel decoration 17, and the right wing back panel decoration 18 are all snapped onto the headrest side wing frame 15.

[0099] In one embodiment, the headrest body also includes a speaker (not shown in the figure). The speaker is mounted on the headrest side wing frame 15, with the speaker's sound outlet facing the headrest foam 11. The headrest foam 11 has multiple first sound-permeable holes corresponding to the speaker's position. The sound emitted from the speaker's sound outlet is transmitted to the passenger through the first sound-permeable holes, ensuring both the speaker's sound quality and the support of the headrest 1's side wall. Furthermore, the speaker mounted on the headrest 1 is close to the passenger's ears, ensuring privacy during calls while enhancing the experience of calls and entertainment.

[0100] During assembly, first install the speaker on the headrest side wing frame 15, and then assemble the headrest side wing frame 15 onto the headrest frame base 14.

[0101] In one embodiment, the plurality of first sound-permeable holes are arranged in a matrix.

[0102] In one embodiment, two speakers are provided, which are respectively installed on both sides of the headrest side wing frame 15 along the left and right direction of the seat 100.

[0103] Additionally, left and right labels can be affixed to the two speakers to prevent incorrect speaker assembly.

[0104] In one embodiment, as shown in Figures 10 and 11, the speaker is fixed to the rear side of the headrest side wing frame 15, and the headrest side wing frame 15 has a plurality of second sound transmission holes 153 corresponding to the position of the speaker. Since the speaker's sound outlet has no protective housing, compared to when the speaker is installed on the front side of the headrest side wing frame 15, the headrest molding part 11 is easily deformed by pressure and squeezes the sound outlet, thus damaging the sound outlet. The speaker fixed to the rear side of the headrest side wing frame 15 can protect the sound outlet of the speaker, improving the speaker's safety.

[0105] In one embodiment, the headrest rod 12 is a round tube, and the speaker wiring harness passes through the round tube and into the backrest 2. The speaker wiring harness is adapted to be electrically connected to the main wiring harness on the vehicle.

[0106] In one embodiment, as shown in FIG11, the headrest side wing frame 15 includes a fixing part 152, a first adjusting part 151, and a second adjusting part. The first adjusting part 151 and the second adjusting part are respectively located on both sides of the fixing part 152 along the left-right direction of the seat 100. The first adjusting part 151 is rotatably mounted on one side of the fixing part 152 about the height direction of the seat 100, and the second adjusting part is rotatably mounted on the other side of the fixing part 152 about the height direction of the seat 100. Two speakers are respectively mounted on the first adjusting part 151 and the second adjusting part.

[0107] The head support can be adjusted laterally by rotating the first adjustment part 151 and the second adjustment part to accommodate different head shapes, further improving head support comfort. The speakers mounted on the first adjustment part 151 and the second adjustment part can also rotate to adapt to different head shapes, ensuring optimal sound output.

[0108] The first adjustment part 151 is typically mounted on one side of the fixed part 152 via a damping hinge, and the second adjustment part is typically mounted on the other side of the fixed part 152 via a damping hinge.

[0109] In other embodiments, the linear motion mechanism 3 may consist only of a drive mechanism 30, the output of which is directly connected to the headrest rod 12. For example, the drive mechanism 30 may consist only of a linear motor 32, the output shaft of which is directly connected to the headrest rod 12.

[0110] In other embodiments, the connecting plate 13 can be omitted, and the other end of the headrest rod 12 can be directly fixed to the slider 31.

[0111] In other embodiments, the connecting plate 13 may be welded, riveted, or snap-fitted to the slider 31.

[0112] In other embodiments, the circumferential limiting structure may include two sets of limiting shafts. Each set of limiting shafts includes multiple limiting shafts spaced apart along the height direction of the seat 100. The limiting shafts extend along the left and right direction of the seat 100. Both sides of the slider 31 along the left and right direction of the seat 100 are provided with grooves extending along the height direction of the seat 100. One end of one set of limiting shafts is inserted into the groove on one side of the slider 31, and one end of the other set of limiting shafts is inserted into the groove on the other side of the slider 31, so as to restrict the axial rotation of the slider 31 by the two sets of limiting shafts.

[0113] In other embodiments, the backrest trim 240 can be omitted, and the travel hole 26 can be provided on the backrest molding part 23.

[0114] In other embodiments, the headrest side wing frame 15 may be omitted, or it may be replaced with a fixed headrest side wing frame 15.

[0115] In addition, one embodiment of this application provides a vehicle including the seat 100 of the above embodiment.

[0116] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A seat (100), wherein, include: A headrest (1), the headrest (1) including a headrest rod (12); The backrest (2) includes a backrest body (20) and a linear motion mechanism (3) installed in the backrest body (20); the front side of the backrest (2) is provided with a travel hole (26) extending along the height direction of the seat (100); the headrest rod (12) extends along the front-rear direction of the seat (100); one end of the headrest rod (12) passes through the travel hole (26) and is connected to the linear motion mechanism (3) in a transmission manner; The linear motion mechanism (3) can drive the headrest rod (12) to move along the height direction of the seat (100).

2. The seat (100) according to claim 1, wherein, The linear motion mechanism (3) includes a drive mechanism (30) and a slider (31) that is connected to the drive mechanism (30) in a transmission manner. One end of the headrest rod (12) is connected to the slider (31). The drive mechanism (30) is used to drive the slider (31) to slide along the height direction of the seat (100).

3. The seat (100) according to claim 2, wherein, The headrest (1) also includes a connecting plate (13), which is connected to one end of the headrest rod (12) and is fixed on the slider (31).

4. The seat (100) according to claim 3, wherein, The connecting plate (13) is provided with a first positioning hole (131), the first positioning hole (131) has an opening facing the slider (31), the slider (31) is provided with a first positioning pin (311) extending along the front and rear of the seat (100), 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).

5. The seat (100) according to claim 3 or 4, wherein, It also includes multiple bolts, the slider (31) is provided with multiple connecting holes (310), the connecting plate (13) is provided with multiple internal thread holes (132) corresponding one-to-one with the multiple connecting holes (310), the backrest body (20) is provided with an operation hole (28) corresponding one-to-one with the multiple connecting holes (310) on the rear side, the operation hole (28) allows the bolt to pass through the connecting hole (310), and the shank of each bolt passes through the corresponding connecting hole (310) and is threadedly connected to the corresponding internal thread hole (132).

6. The seat (100) according to any one of claims 2-5, wherein, The drive mechanism (30) includes a motor (32), a base (33), a lead screw (34), and a nut. The base (33) is fixed inside the backrest body (20). The lead screw (34) extends along the height direction of the seat (100). One end of the lead screw (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 lead screw (34). The base (33) is provided with a circumferential limiting structure that can restrict the circumferential rotation of the nut. The slider (31) is fixed to the nut, or the slider (31) and the nut are integral.

7. The seat (100) according to claim 6, wherein, The base (33) is provided with a slide rail protruding toward the headrest (1) side. The slide rail extends along the height direction of the seat (100). The slider (31) is slidably connected to the slide rail. The slide rail constitutes the circumferential limiting structure.

8. The seat (100) according to any one of claims 1-7, wherein, The backrest body (20) includes a backrest foam (23), a backrest cover (29), a backrest frame (21), a backrest decorative piece (240), and a backrest back panel (22). The backrest back panel (22) is fixed to the back of the backrest frame (21), and the backrest foam (23) is fixed to the front of the backrest frame (21). The backrest cover (29) is fitted onto the outer ring of the backrest frame (21) from the front. The front side of the backrest foam (23) is provided with a decorative hole (27) that matches the shape of the backrest decorative piece (240). The backrest decorative piece (240) is installed in the decorative hole (27) and fixed on the backrest frame (21). The headrest (1) contacts and cooperates with the front side of the backrest decorative piece (240). The travel hole (26) is formed on the backrest decorative piece (240).

9. The seat (100) according to claim 8, wherein, The backrest decorative component (240) includes a decorative component body (25) and a decorative component base (24). The decorative component body (25) is located in front of the decorative component base (24). The decorative component body (25) and the decorative component base (24) are detachably connected. The decorative hole (27) is adapted to the shape of the decorative component body (25). The decorative component base (24) is fixed on the backrest frame (21).

10. The seat (100) according to claim 9, wherein, The outer dimensions of the main body (25) of the decorative component are smaller than those of the base (24) of the decorative component.

11. The seat (100) according to claim 9 or 10, wherein, The decorative component body (25) is snapped into the decorative component base (24).

12. The seat (100) according to any one of claims 8-11, wherein, The backrest frame (21) includes a backrest horizontal tube (211), a backrest beam (212), a mechanism fixing plate (214), and multiple decorative fixing plates (213). The two ends of the backrest horizontal tube (211) are bent downwards. The backrest beam (212) is connected to the lower end of the backrest horizontal tube (211) to form an installation area. The mechanism fixing plate (214) is located in the installation area and connected to the backrest horizontal tube (211). The linear motion mechanism (3) is installed on the mechanism fixing plate (214). Multiple decorative fixing plates (213) are disposed on the outer periphery of the backrest decorative piece (240) and fixed on the mechanism fixing plate (214), and the backrest decorative piece (240) is fixed on the decorative fixing plate (213).

13. The seat (100) according to any one of claims 8-12, wherein, 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 fitted onto the outer ring of the headrest frame from the front. The headrest decorative piece is fixed to the headrest frame and together with the headrest cover covers the outer periphery of the headrest frame. The other end of the headrest rod (12) is connected to the headrest frame.

14. The seat (100) according to claim 13, wherein, The rear side of the headrest decoration has an annular protrusion (161) protruding toward the backrest decoration (240), and the front side of the backrest decoration (240) has a shielding edge (251) arranged around the edge of the decoration hole (27). The shielding edge (251) protrudes toward the headrest body (19), and the annular protrusion (161) and the shielding edge (251) overlap in the front-back direction of the seat (100) to jointly shield the headrest frame.

15. The seat (100) according to claim 13 or 14, wherein, The headrest frame includes a headrest frame base (14) and a headrest side wing frame (15) fixed on the headrest frame base (14). The headrest cover is fitted on the headrest side wing frame (15). The headrest decorative piece is fixed on the headrest side wing frame (15). The other end of the headrest rod (12) is connected to the headrest frame base (14).

16. The seat (100) according to claim 15, wherein, 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 (100), and the right side partially overlaps with the right wing back panel decoration (18). In the fore-and-aft direction of the seat (100), the left side of the headrest back panel trim (16) is located in front of the left wing back panel trim (17), and the right side is located in front of the right wing back panel trim (18).

17. The seat (100) according to claim 15 or 16, wherein, The headrest body (19) also includes a speaker, which is mounted on the headrest side wing frame (15). The speaker's sound outlet faces the headrest foam (11), and the headrest foam (11) has a plurality of first sound-transmitting holes corresponding to the position of the speaker.

18. The seat (100) according to claim 17, wherein, Two speakers are provided, and the two speakers are respectively installed on both sides of the headrest side wing frame (15) along the left and right directions of the seat (100).

19. The seat (100) according to claim 17 or 18, wherein, The speaker is fixed to the rear side of the headrest side wing frame (15), and the headrest side wing frame (15) is provided with a plurality of second sound transmission holes (153) corresponding to the position of the speaker.

20. The seat (100) according to any one of claims 17-19, wherein, The headrest rod (12) is a round tube, and the speaker wiring harness passes through the round tube and into the backrest (2). The speaker wiring harness is adapted to be electrically connected to the main wiring harness on the vehicle.

21. The seat (100) according to claim 18, wherein, The headrest side wing frame (15) includes a fixing part (152), a first adjusting part (151), and a second adjusting part. The first adjusting part (151) and the second adjusting part are respectively located on both sides of the fixing part (152) along the left-right direction of the seat (100). The first adjusting part (151) is rotatably mounted on one side of the fixing part (152) around the height direction of the seat (100), and the second adjusting part is rotatably mounted on the other side of the fixing part (152) around the height direction of the seat (100). The two speakers are respectively mounted on the first adjusting part (151) and the second adjusting part.

22. A vehicle, wherein, Includes the seat (100) as described in any one of claims 1-21.

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