Seat headrest, seat and vehicle

Abstract

The invention relates to the technical field of vehicle seats, and provides a seat headrest, a seat and a vehicle. The seat headrest comprises a headrest cover and a telescopic mechanism, the headrest cover is provided with a supporting face used for supporting the head and the neck, and the supporting face comprises a head contact area and a neck contact area which are adjacently arranged; the telescopic mechanism is contained in the headrest cover, the telescopic mechanism stretches out in the direction close to the neck contact area and exerts acting force on the neck contact area, the neck contact area protrudes relative to the head contact area, the neck contact area can protrude towards the neck close to a passenger under the acting force of the telescopic mechanism, and therefore the neck of the passenger can be supported. The seat headrest has the advantages that the seat headrest plays a role of a neck support, so that the seat headrest can integrate the headrest and the neck support, a user does not need to additionally configure auxiliary tools such as the neck support, the integration and the appearance consistency of the seat headrest are guaranteed, the comfort of a passenger taking the seat for a long time is improved, and the taking experience feeling of the passenger is perfected.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle seats, and particularly to a seat headrest, a seat and a vehicle. Background Art

[0002] With the continuous development of the automotive industry, users have higher and higher requirements for the comfort of seats. For traditional seat headrests, users need to additionally equip auxiliary tools (such as neck pillows or lumbar pillows, etc.) for the seat headrest to relieve problems such as neck soreness caused by long-term sitting, resulting in a poor riding experience for users. Summary of the Invention

[0003] In order to solve the above technical problems, the present disclosure provides a seat headrest, a seat and a vehicle.

[0004] The first aspect of the present disclosure provides a seat headrest, comprising:

[0005] A headrest cover having a support surface for supporting the head and neck, the support surface including a head contact area and a neck contact area arranged adjacent to each other;

[0006] A telescopic mechanism accommodated in the headrest cover, the telescopic mechanism extending towards the neck contact area and applying a force to the neck contact area to make the neck contact area protrude relative to the head contact area.

[0007] Optionally, the telescopic mechanism applies a force to a portion of the neck contact area away from the head contact area, so that the neck contact area is deformed under force into an arc-shaped protrusion, and the portion of the deformed neck contact area adjacent to the head contact area gradually slopes towards the head contact area.

[0008] Optionally, the headrest cover includes a cover body and a flexible support plate, and a notch is formed on the cover body;

[0009] A portion of the flexible support plate is covered on the cover body to form the head contact area, and the remaining portion of the flexible support plate is blocked at the notch to form the neck contact area, and the telescopic mechanism extends out from the notch to make the flexible support plate protrude relative to the cover body.

[0010] Optionally, the seat headrest further includes a plastic support plate, which is blocked and abutted at the notch, and the telescopic mechanism extends out from the notch to make the plastic support plate squeeze the flexible support plate in a direction away from the cover body.

[0011] Optionally, the seat headrest further includes a headrest support base located inside the headrest cover. An accommodation cavity is formed in the headrest support base, and the telescopic mechanism is accommodated in the accommodation cavity and can extend / retract relative to the accommodation cavity.

[0012] Optionally, the telescopic mechanism includes a driving motor and a lead screw that are drivingly connected, and the driving motor is accommodated in the accommodation cavity;

[0013] An avoidance groove is formed in the side wall of the headrest support base. The lead screw passes through the avoidance groove and extends toward the neck contact area. The driving motor drives the lead screw to extend toward the neck contact area and retract away from the neck contact area.

[0014] Optionally, the seat headrest further includes a headrest rod located inside the headrest cover. The headrest rod is used to pass through the headrest support base and is fixed to the seat backrest;

[0015] The inside of the headrest rod is hollow, and the electrical connection wire of the driving motor passes through the headrest support base and extends into the inside of the headrest rod to be connected to the power supply of the seat backrest.

[0016] Optionally, the seat headrest further includes a headrest fixing base located inside the headrest cover. The headrest fixing base is connected to the headrest support base, and the headrest rod is fixed to the headrest fixing base through a bracket assembly.

[0017] Optionally, the headrest rod includes two vertical rod portions that are connected. The two vertical rod portions respectively pass through both sides of the headrest support base;

[0018] The bracket assembly includes a first upper bracket, a second upper bracket, a first lower bracket, and a second lower bracket. One vertical rod portion is fixed to one end of the headrest fixing base through the first upper bracket and the first lower bracket, and the other vertical rod portion is fixed to the other end of the headrest fixing base through the second upper bracket and the second lower bracket, and both the first lower bracket and the second lower bracket are in abutting cooperation with the headrest support base.

[0019] Optionally, the seat headrest further includes a headrest cover, which is sleeved outside the headrest cover. At least the part of the headrest cover corresponding to the neck contact area is made of an elastic material.

[0020] The second aspect of the present disclosure provides a seat, including a seat backrest and the above-mentioned seat headrest, and the seat headrest is connected to the top of the seat backrest.

[0021] The third aspect of the present disclosure provides a vehicle, including the above-mentioned seat.

[0022] The technical solution provided by the present disclosure has the following advantages compared with the prior art:

[0023] The seat headrest provided by the present disclosure includes a headrest cover and a telescopic mechanism. The support surface of the headrest cover includes an adjacent head contact area and a neck contact area. The telescopic mechanism extends towards the neck contact area and applies a force to the neck contact area, causing the neck contact area to protrude relative to the head contact area, so that the neck contact area can protrude towards the passenger's neck under the action of the telescopic mechanism, thereby being able to support the passenger's neck and acting as a neck support. This enables the seat headrest to integrate the functions of a headrest and a neck support, eliminating the need for users to additionally equip auxiliary tools such as neck pillows, ensuring the integration and appearance consistency of the seat headrest, improving the comfort of passengers during long-term rides, and enhancing the passenger's riding experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present disclosure and, together with the specification, are used to explain the principles of the present disclosure.

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the accompanying drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 Schematic assembly diagram of the seat headrest and the seat in an embodiment of the present disclosure;

[0027] Figure 2 Schematic diagram showing that the neck contact area of the seat headrest in an embodiment of the present disclosure does not support the passenger;

[0028] Figure 3 Schematic diagram showing that the neck contact area of the seat headrest in an embodiment of the present disclosure supports the passenger;

[0029] Figure 4 Explosion schematic diagram of the seat headrest in an embodiment of the present disclosure;

[0030] Figure 5 Schematic diagram showing that the telescopic mechanism of the seat headrest in an embodiment of the present disclosure is in a retracted state;

[0031] Figure 6 Schematic diagram showing that the telescopic mechanism of the seat headrest in an embodiment of the present disclosure is in an extended state;

[0032] Figure 7 Schematic assembly diagram of the partial structure of the seat headrest in an embodiment of the present disclosure.

[0033] Reference numerals:

[0034] 1. Hood cover body; 11. Installation cavity; 12. Notch; 13. Counterbore; 2. Flexible support plate; 3. Plastic support plate; 4. Support guard plate; 41. First modesty baffle; 42. Second modesty baffle; 5. Headrest support seat; 50. Accommodation cavity; 51. Avoidance groove; 61. Driving motor; 62. Lead screw; 63. Stop pin; 64. Electrical connection wire; 7. Headrest rod; 8. Headrest fixing seat; 91. First upper bracket; 92. Second upper bracket; 93. First lower bracket; 94. Second lower bracket; 10. Headrest face cover;

[0035] 100. Seat backrest. Detailed implementation manner

[0036] In order to be able to more clearly understand the above-mentioned objects, features, and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0037] Many specific details are set forth in the following description in order to fully understand the present disclosure, but the present disclosure can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present disclosure, rather than all of the embodiments.

[0038] Referring to Figures 1 to 7 As shown, some embodiments of the present disclosure provide a seat headrest, including a headrest cover and a telescopic mechanism.

[0039] Among them, the headrest cover has a support surface for supporting the head and neck of a passenger. The support surface includes an adjacent head contact area a and a neck contact area b. Referring to Figure 1 As shown, the head of the passenger abuts and supports on the head contact area a, and the neck of the passenger abuts and supports on the neck contact area b. The telescopic mechanism is accommodated in the headrest cover, and the telescopic mechanism extends towards the direction close to the neck contact area b and applies a force to the neck contact area b, so that the neck contact area b protrudes relative to the head contact area a.

[0040] It should be noted that an installation cavity 11 is formed inside the headrest cover, and the telescopic mechanism is accommodated in the installation cavity 11. Referring to Figure 6 As shown, when the telescopic mechanism extends towards the neck contact area b, the end of the telescopic mechanism only needs to press against the neck contact area b to make the neck contact area b deform and protrude relative to the head contact area a. The telescopic mechanism only makes an extending action, and the telescopic mechanism itself does not completely extend out of the installation cavity 11. That is to say, whether the telescopic mechanism is in the extended state or the retracted state, the telescopic mechanism is always located inside the installation cavity 11.

[0041] The seat headrest provided by the present disclosure includes a headrest cover and a telescopic mechanism. The support surface of the headrest cover includes an adjacent head contact area a and a neck contact area b. The telescopic mechanism extends towards the neck contact area b and applies a force to the neck contact area b, causing the neck contact area b to protrude relative to the head contact area a, so that the neck contact area b can protrude towards the passenger's neck under the action of the telescopic mechanism, thereby being able to support the passenger's neck and serving as a neck rest. This enables the seat headrest to integrate the functions of a headrest and a neck rest, eliminating the need for users to additionally equip auxiliary tools such as neck pillows, ensuring the integrity and appearance consistency of the seat headrest, improving the comfort of passengers during long-term rides, and enhancing the passenger's riding experience.

[0042] In the actual application process, the specific positions and occupied areas of the head contact area a and the neck contact area b can be flexibly set according to the characteristic dimensions of the human head and neck. It is only necessary to ensure that the end of the telescopic mechanism is correspondingly arranged with the neck contact area b, as long as it is ensured that the neck contact area b can generate a convex deformation under the action of the telescopic mechanism to effectively support the passenger's neck.

[0043] In some embodiments, referring to Figure 1 as shown, the telescopic mechanism is configured to be able to apply a force to the part of the neck contact area b away from the head contact area a, so that the neck contact area b deforms under force into an arc-shaped convex shape, and the neck contact area b is arc-shaped convex along the width direction, with the entire arc-shaped convex having a circular arc transition, adapting to the neck line of the passenger, being able to better support the passenger's neck and improve comfort. Moreover, the arc-shaped convex position of the neck contact area b is lower, which can improve the comfort of the passenger's neck, and the part of the deformed neck contact area b adjacent to the head contact area a gradually slopes towards the head contact area a, being able to support the passenger's neck to a certain extent, enabling a smooth and gentle transition between the passenger's neck and head, and enhancing the passenger's riding experience. In addition, the telescopic mechanism can also retract in the direction away from the neck contact area b.

[0044] In some embodiments, referring to Figures 4 to 6 as shown, the headrest cover includes a cover body 1 and a flexible support plate 2. An installation cavity 11 is formed inside the cover body 1, and a notch 12 communicating with the installation cavity 11 is formed on the side of the cover body 1 facing the passenger.

[0045] The flexible support plate 2 is a plate-like structure made of a flexible material, which can be soft foam, such as high-resilience polyurethane foam or other materials. The soft foam can not only be easily convex deformed under the action of the telescopic mechanism, but also ensure that it is softer when contacting the head and neck of the passenger, improving the overall use experience of the seat headrest. The flexible support plate 2 is integrally covered on the side of the cover body 1 facing the passenger. Among them, a part of the structure of the flexible support plate 2 is covered on the cover body 1 to form a head contact area a, and the rest of the structure of the flexible support plate 2 is blocked at the notch 12 to form a neck contact area b. That is to say, the upper part of the flexible support plate 2 is abutted and arranged on the cover body 1, so the head contact area a will not be deformed by virtue of the characteristics of the cover body 1, and the passenger's head can be directly supported on the head contact area a. The lower part of the flexible support plate 2 is blocked and suspended at the notch 12. Therefore, when the telescopic mechanism extends out of the notch 12, due to the flexible nature of the flexible support plate 2 itself, the flexible support plate 2 can protrude and deform relative to the cover body 1 under the action of the telescopic mechanism, so as to form an arc-shaped protrusion, thereby providing effective and soft support for the passenger's neck and improving the comfort of the passenger's neck. The passenger does not need to additionally equip a neck pillow or a lumbar pillow for supporting the neck; and, referring to Figure 5 As shown, when the telescopic mechanism retracts and resets, due to the flexible nature of the flexible support plate 2 itself, the flexible support plate 2 can naturally reset, so that the neck contact area b returns to the same horizontal plane as the head contact area a, making the use process of the seat headrest more convenient and simple.

[0046] Specifically, the side of the cover body 1 facing the passenger can also be formed into a sunken platform 13, and the flexible support plate 2 can be attached to the sunken platform 13, so that the surfaces of the flexible support plate 2 and the cover body 1 are flush, ensuring the appearance flatness of the cover body 1. In the actual application process, the flexible support plate 2 can be fixed to the sunken platform 13 of the cover body 1 by gluing or other means.

[0047] In some embodiments, referring to Figure 4 As shown, the seat headrest further includes a plastic support plate 3, and the plastic support plate 3 can be made of plastic hard foam, such as EPP (Expanded polypropylene, abbreviated as EPP) foamed polypropylene. The plastic support plate 3 is blocked and abutted at the notch 12 to support the flexible support plate 2. The telescopic mechanism extends out of the notch 12, so that the plastic support plate 3 extrudes the flexible support plate 2 in the direction away from the cover body 1, thereby assisting the flexible support plate 2 to perform arc-shaped deformation through the plastic support plate 3, so as to avoid the small end area of the telescopic mechanism, resulting in the force applied to the flexible support plate 2 being too concentrated, making the convex area formed by the flexible support plate 2 under force too small, which affects the support of the passenger's neck.

[0048] In the actual application process, referring to Figure 4 As shown, on one side of the plastic support plate 3 facing the telescopic mechanism, a support guard plate 4 can also be provided. The support guard plate 4 can be made of plastic material. The support guard plate 4 can play a certain role in supporting and protecting the plastic support plate 3. And on the left and right sides of the support guard plate 4, a first privacy baffle 41 and a second privacy baffle 42 can be provided. Thus, when the telescopic mechanism extends and applies a force to the support guard plate 4, causing the plastic support plate 3 and the flexible support plate 2 to bulge and deform, resulting in the exposure of the skeleton or other components inside the cover body 1, the inside of the cover body 1 can be blocked by the first privacy baffle 41 and the second privacy baffle 42 to ensure the aesthetic appearance.

[0049] In some embodiments, continuing to refer to Figure 4 As shown, the seat headrest further includes a headrest support seat 5. The headrest support seat 5 is located inside the headrest cover, specifically in the installation cavity 11 of the cover body 1. A receiving cavity 50 is formed inside the headrest support seat 5. The telescopic mechanism is accommodated in the receiving cavity 50 and can extend / retract relative to the receiving cavity 50. The headrest support seat 5 plays a role in carrying the telescopic mechanism to ensure the installation stability and the smoothness of the extension / retraction of the telescopic mechanism.

[0050] Furthermore, referring to Figure 6 As shown, the telescopic mechanism includes a driving motor 61 and a lead screw 62 that are drivingly connected. The receiving cavity 50 is adapted to the driving motor 61. The driving motor 61 is accommodated in the receiving cavity 50 along the length direction to ensure the stability of the driving motor 61.

[0051] The lead screw 62 passes through the inside of the driving motor 61 as a whole. The lead screw 62 is in meshing cooperation with the output end of the driving motor 61. The lead screw 62 extends obliquely as a whole, and the end of the lead screw 62 faces the support guard plate 4. Specifically, an avoidance groove 51 is formed on the side wall of the headrest support seat 5. The lead screw 62 passes through the avoidance groove 51 and extends towards the neck contact area b (i.e., the support guard plate 4). The driving motor 61 drives the lead screw 62 to extend towards the support guard plate 4 and retract away from the support guard plate 4. A stop pin 63 is provided at the end of the lead screw 62 away from the support guard plate 4. When the lead screw 62 extends to the limit position, the stop pin 63 abuts against the driving motor 61 to prevent the lead screw 62 from continuing to extend. A gear meshing with the lead screw 62 can be provided inside the driving motor 61, and the lead screw 62 is locked by the meshing of the gear and the lead screw 62.

[0052] Specifically, Figure 2 and Figure 5 As shown, it is the stationary state when the telescopic mechanism is not powered on. At this time, the telescopic mechanism is in the retracted state. Figure 3 and Figure 6The figure shows the operating state of the telescopic mechanism when it is powered on. At this time, the telescopic mechanism is in the extended state. The drive motor 61 is connected to the power supply of the seat back 100 through the electrical connection line 64. Buttons can be set on the seats or other components in the vehicle. When the passenger takes a seat, the button can be manually pressed. After the drive motor 61 is turned on, it drives the lead screw 62 to extend towards the support guard plate 4, so as to push the plastic support plate 3 and the flexible support plate 2 to generate an arc-shaped protrusion through the support guard plate 4. When the lead screw 62 extends to the limit, the stop pin 63 can be used to prevent the lead screw 62 from continuing to extend, and the lead screw 62 can also be locked by the meshing between the gears inside the drive motor 61 and the lead screw 62.

[0053] It should be noted that in the actual application process, according to passengers of different heights, the extension length of the lead screw 62 can be flexibly set by the meshing position between the drive motor 61 and the lead screw 62. For example, it can be fully extended or partially extended, so that the seat headrest can meet the neck support needs of passengers in different states or of different body types, improving the practicability and applicability of the seat headrest, making the use of the seat headrest more flexible, and the overall structure of the seat headrest is simple, and the adjustment process is convenient and fast. The above description of the telescopic mechanism is only an exemplary setting method and does not constitute a limitation on the protection scope of the present disclosure. In the actual application process, the telescopic mechanism can also be other structures, such as an elastic telescopic mechanism or a hydraulic or pneumatic telescopic mechanism, etc.

[0054] In some embodiments, referring to Figure 2 , Figure 3 and Figure 4 as shown, the seat headrest further includes a headrest rod 7. The headrest rod 7 is located inside the headrest cover, specifically in the installation cavity 11 of the cover body 1. The headrest rod 7 is used to pass through the headrest support seat 5 and is fixed on the seat back 100, so as to integrally connect and fix the seat headrest to the seat back 100.

[0055] Furthermore, the inside of the headrest rod 7 is hollow. The electrical connection line 64 of the drive motor 61 passes through the headrest support seat 5 and extends into the inside of the headrest rod 7. The electrical connection line 64 gradually extends along the headrest rod 7 to the seat back 100 and is connected to the power supply of the seat back 100, so as to supply power to the drive motor 61.

[0056] In some embodiments, referring to Figures 4 to 6 as shown, the seat headrest further includes a headrest fixing seat 8, which is located inside the headrest cover. The headrest fixing seat 8 is accommodated in the installation cavity 11 of the cover body 1 along the height direction. The headrest fixing seat 8 and the headrest support seat 5 are connected, and can be in a snap-fit connection. The headrest rod 7 is fixed to the headrest fixing seat 8 through a bracket assembly to ensure the fixing stability of the headrest rod 7.

[0057] Further, the headrest rod 7 is in an n shape and includes two connected vertical rod portions. Avoidance through holes are respectively provided on both sides of the headrest support seat 5. The two vertical rod portions respectively pass through the avoidance through holes on both sides of the headrest support seat 5 and are fixed to the headrest fixing seat 8 through a bracket assembly.

[0058] Specifically, the bracket assembly includes a first upper bracket 91, a second upper bracket 92, a first lower bracket 93, and a second lower bracket 94. One vertical rod portion is fixed to one end of the headrest fixing seat 8 through the first upper bracket 91 and the first lower bracket 93, and the other vertical rod portion is fixed to the other end of the headrest fixing seat 8 through the second upper bracket 92 and the second lower bracket 94. Moreover, both the first lower bracket 93 and the second lower bracket 94 are in abutting cooperation with the headrest support seat 5, which can not only stably mount the headrest rod 7 on the headrest fixing seat 8, but also improve the support stability of the headrest rod 7 through the abutting cooperation between the first lower bracket 93, the second lower bracket 94 and the headrest support seat 5.

[0059] In some embodiments, the seat headrest further includes a headrest cover 10. The headrest cover 10 is adapted to the structure and size of the cover body 1. The headrest cover 10 is integrally sleeved outside the cover body 1 to ensure the integrity and aesthetics of the appearance of the seat headrest. Among them, the filler inside the cover body 1 can select various foaming materials, gases or liquid fillers, and the material of the headrest cover 10 covering the surface of the cover body 1 can also select fabrics, artificial leathers, natural leathers, etc. It should be noted that at least the part of the headrest cover 10 corresponding to the neck contact area b is made of elastic material, such as leather material like PVC, etc. The elastic material can ensure that the flexible support plate 2 can squeeze the neck contact area b of the headrest cover 10 to bulge and deform accordingly, so as to support the user's neck position. Refer to Figure 1 As shown, the upper part of the headrest cover 10 is the head contact area a, the lower part of the headrest cover 10 is the neck contact area b, and the neck contact area b is in an arc-shaped convex shape to support the neck position of the passenger. In the actual application process, the whole headrest cover 10 can also be made of elastic material.

[0060] During the installation process, it is necessary to first install the telescopic mechanism as a whole on the headrest support seat 5, sleeved the cover body 1 as a whole outside the headrest support seat 5 and the headrest fixing seat 8, assemble the support guard plate 4 and the plastic support plate 3 to the notch 12, attach the flexible support plate 2 to the side of the cover body 1 facing away from the telescopic mechanism, and finally wrap the headrest cover 10 as a whole outside the cover body 1, thereby completing the assembly of the seat headrest.

[0061] The present disclosure also provides a seat. Refer to Figures 1 to 3 As shown, the seat includes a seat backrest 100 and the above-mentioned seat headrest, and the seat headrest is connected to the top of the seat backrest 100.

[0062] Specifically, the seat headrest includes a headrest rod 7. The seat headrest is fixed to the seat backrest 100 through the headrest rod 7, and the seat headrest can slide along the height direction of the seat backrest 100. When facing passengers of different heights, the telescopic mechanism extends to cause an arc-shaped protrusion to occur in the neck contact area b to support the passenger's neck. At the same time, the height position of the seat headrest relative to the headrest rod 7 can also be adjusted so that the position of the neck contact area b can better fit the passenger's neck, further improving the riding comfort of the passenger. In the actual application process, the headrest rod 7 can be fixedly connected to the seat headrest, and a sliding connection is made between the headrest rod 7 and the seat backrest 100, or a sliding connection can also be made between the headrest rod 7 and the seat headrest, so that the seat headrest can directly slide along the length direction of the headrest rod 7 to adaptively adjust the height position of the seat headrest.

[0063] The present disclosure also provides a vehicle, including the above-mentioned seat. For the technical features of the seat used in this vehicle, reference can be made to the seat in the above-mentioned embodiments, and details will not be repeated here. It should be noted that the seat provided by the present disclosure can be applied not only to vehicles but also to boats or other mechanical devices, so as to effectively support the heads and necks of passengers.

[0064] It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article, or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article, or device including the element.

[0065] The above are only specific embodiments of the present disclosure, enabling those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A seat headrest, characterized in that, Comprising: A headrest cover having a support surface for supporting the head and neck, the support surface including an adjacent head contact area and a neck contact area; A telescopic mechanism housed within the headrest cover, the telescopic mechanism extending towards the neck contact area and applying a force to the neck contact area to cause the neck contact area to protrude relative to the head contact area.

2. The seat headrest according to claim 1, characterized in that, The telescopic mechanism applies a force to a portion of the neck contact area away from the head contact area so that the neck contact area deforms under the force to form an arc-shaped protrusion, and the portion of the deformed neck contact area adjacent to the head contact area gradually slopes towards the head contact area.

3. The seat headrest according to claim 1, characterized in that, The headrest cover includes a cover body and a flexible support plate, and a notch is formed on the cover body; A portion of the flexible support plate is disposed on the cover body to form the head contact area, and the remaining portion of the flexible support plate is blocked at the notch to form the neck contact area. The telescopic mechanism extends out from the notch so that the flexible support plate protrudes relative to the cover body.

4. The seat headrest according to claim 3, characterized in that, The seat headrest further includes a plastic support plate that is blocked and abuts at the notch, and the telescopic mechanism extends out from the notch so that the plastic support plate presses the flexible support plate in a direction away from the cover body.

5. The seat headrest according to claim 1, characterized in that, The seat headrest further includes a headrest support seat located within the headrest cover. An accommodation cavity is formed within the headrest support seat, and the telescopic mechanism is housed within the accommodation cavity and can extend / retract relative to the accommodation cavity.

6. The seat headrest according to claim 5, characterized in that, The telescopic mechanism includes a driving motor and a lead screw that are drivingly connected, and the driving motor is housed within the accommodation cavity; An avoidance groove is formed on the side wall of the headrest support seat, and the lead screw passes through the avoidance groove and extends towards the neck contact area. The driving motor drives the lead screw to extend towards the neck contact area and retract away from the neck contact area.

7. The seat headrest according to claim 6, characterized in that, The seat headrest further includes a headrest rod located within the headrest cover, and the headrest rod is used to pass through the headrest support seat and be fixed to the seat backrest; The interior of the headrest rod is hollow, and the electrical connection wire of the driving motor passes through the headrest support seat and extends into the interior of the headrest rod to be connected to the power supply of the seat backrest.

8. The seat headrest according to claim 7, wherein, The seat headrest further includes a headrest fixing seat located within the headrest cover. The headrest fixing seat is connected to the headrest support seat, and the headrest rod is fixed to the headrest fixing seat through a bracket assembly.

9. The seat headrest according to claim 8, wherein The headrest rod includes two connected vertical rod portions, and the two vertical rod portions respectively pass through both sides of the headrest support seat; The bracket assembly includes a first upper bracket, a second upper bracket, a first lower bracket, and a second lower bracket. One vertical rod portion is fixed to one end of the headrest fixing seat through the first upper bracket and the first lower bracket, and the other vertical rod portion is fixed to the other end of the headrest fixing seat through the second upper bracket and the second lower bracket, and both the first lower bracket and the second lower bracket are in abutting cooperation with the headrest support seat.

10. The seat headrest according to any one of claims 1 to 9, characterized in that The seat headrest further includes a headrest cover, which is sleeved outside the headrest cover, and at least the part corresponding to the neck contact area of the headrest cover is made of an elastic material.

11. A seat, characterized in that, It includes a seat back and the seat headrest according to any one of claims 1 to 10, and the seat headrest is connected to the top of the seat back.

12. A vehicle, characterized in that, It includes the seat according to claim 11.

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