Headrest assembly and automobile

Abstract

The utility model discloses a headrest assembly and an automobile, the headrest assembly comprises a pair of headrest parts which are arranged along a first direction and are combined by mutually opposite wall surfaces, the pair of headrest parts are combined by a combination surface to form a headrest body, and in a second direction, one side of the headrest body forms an inward concave support surface. The hardness of each headrest part is gradually increased from the combination face in the direction away from the other headrest part, each headrest part is installed on the seat framework through a headrest adjusting assembly, and the headrest adjusting assembly adjusts the corresponding headrest part to move away from or close to the other headrest part so as to adjust the postures of the two headrest parts. Different supporting requirements of the head of a passenger are met; the side, close to the combination face, of the headrest part is designed to have higher hardness so as to provide necessary supporting stability, and the side, away from the combination face, of the headrest part is made of a relatively soft material so as to better adapt to the curve of the head of a passenger and provide softer and more comfortable touch feeling.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, especially relates to a headrest assembly, and the headrest assembly can be used for an automobile. BACKGROUND

[0002] The headrest on the automobile seat, as an important part of the automobile interior, aims to improve the comfort and safety of the driver and passenger. Specifically, the headrest is usually located on the upper part of the seat back, which can fit the head and neck of the driver and passenger, reducing the fatigue during long driving or riding. In addition, when the vehicle collides or brakes suddenly, the headrest can effectively prevent the driver's head from leaning backward due to inertia, thereby reducing the risk of neck injury.

[0003] The current headrest forms include one-piece non-adjustable headrest, two-way adjustable headrest, four-way adjustable headrest and six-way adjustable headrest. The one-piece non-adjustable headrest and the two-way adjustable headrest have simple structure, and can only be adjusted vertically, which limits the adjustable direction of the headrest posture and cannot meet the comfort requirements of passengers with different body sizes. The four-way adjustable headrest can adjust the headrest in four directions of up, down, front and back, which is large in size and complex in structure, and can block the view of the passenger. Most of them are electrically adjusted, which is high in cost. The six-way adjustable headrest can not only adjust the headrest in four directions of up, down, front and back, but also adjust the support of the two sides of the headrest. However, its adjustment components occupy more space and have more complex structure, which is high in cost.

[0004] Therefore, the headrest in the prior art cannot improve the support comfort of the passenger's head and neck under the premise of simple structure. SUMMARY

[0005] The utility model aims at solving the technical problem that the headrest in the prior art cannot improve the support comfort of the passenger's head and neck under the premise of simple structure.

[0006] To solve the above technical problems, the embodiment of the utility model discloses a headrest assembly, which comprises a pair of headrest parts arranged along a first direction and combined with each other by wall surfaces. The pair of headrest parts are combined by the combined surfaces to form a headrest body. In a second direction, one side of the headrest body forms a support surface that is recessed inward. The support surface is used to support the occipital part of the passenger. The support surface not only fits the ergonomics, but also provides more comfortable support according to the natural curve of the passenger's head, reducing the fatigue during long-distance travel.

[0007] The hardness of the headrest portion gradually increases from the joint surface in the direction away from the other headrest portion. This gradient design enables the headrest portion to adapt to different needs for hardness according to different areas of the passenger's head (such as the back of the head, the neck, etc.) while providing necessary support, further improving the comfort of the ride.

[0008] Furthermore, each headrest portion is mounted on the seat frame through a headrest adjusting assembly, and the headrest adjusting assembly adjusts the corresponding headrest portion to move away from or close to the other headrest portion to adjust the posture of the two headrest portions to adapt to different support needs of the passenger's head.

[0009] Specifically, the headrest adjusting assembly adjusts the corresponding headrest portion to move away from the other headrest portion, so that the pair of headrest portions are separated from the joint surface, and there is a clearance space between the pair of headrest portions, and the passenger's head is abutted by the corresponding headrest portion on both sides to avoid the passenger's hairstyle being squeezed and deformed.

[0010] The headrest adjusting assembly adjusts the corresponding headrest portion to move close to the other headrest portion, so that the joint surface on the side close to the support surface of the pair of headrest portions is squeezed, and the joint surface on the side away from the support surface is separated.

[0011] This headrest assembly can move each headrest portion away from or close to the other headrest portion through the headrest adjusting assembly, thereby adjusting the relative posture of the two headrest portions. This design enables the headrest assembly to flexibly adapt to the head size and support preferences of different passengers, providing a personalized support experience.

[0012] Further, in the present embodiment, the headrest adjusting assembly includes a headrest rod and a rotary drive member, one end of the headrest rod is connected to the corresponding headrest portion, the other end is mounted on the seat frame, and the rotary drive member is mounted on the seat frame and in transmission connection with the other end of the headrest rod.

[0013] The rotary drive member drives the headrest rod and links the corresponding headrest portion to rotate in the direction away from the side of the support surface, so that the pair of headrest portions are separated from the joint surface.

[0014] The rotary drive member drives the headrest rod and links the corresponding headrest portion to rotate in the direction close to the side of the support surface.

[0015] Further, in the present embodiment, each headrest portion is sequentially stacked with at least two foam layers from the joint surface in the direction away from the other headrest portion, and the hardness of the foam layer close to the joint surface is greater than that of the foam layer away from the joint surface.

[0016] That is, in the embodiment, the foamed layers in the headrest portions are arranged in a stacked manner, and each headrest portion is sequentially stacked with at least two foamed layers in a direction away from the other headrest portion from the joint surface. This design not only enhances the support force of the headrest, but also realizes more precise support for the head and neck through the combination of foamed layers with different hardness.

[0017] Notably, the foamed layer close to the joint surface is designed to have greater hardness to provide necessary support stability. The foamed layer away from the joint surface is made of a relatively soft material to better adapt to the curve of the passenger's head and provide a softer and more comfortable touch. This gradient design of hardness enables the headrest to maintain structural stability while also having excellent comfort and adaptability.

[0018] The embodiment of the utility model discloses a kind of cars, including the headrest assembly of any one of the above, headrest assembly is installed on seat skeleton.This headrest assembly structure is simple, and adapt to the different support needs of passenger's head, to improve the ride comfort of car. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The structure schematic view of the headrest assembly (a pair of headrest portions are combined with joint surface) provided for the embodiment of the utility model is shown in the figure;

[0020] Figure 2 The structure schematic view of the headrest assembly (a pair of headrest portions are separated with joint surface) provided for the embodiment of the utility model is shown in the figure;

[0021] Figure 3 The sectional schematic view of the headrest portion of the headrest assembly provided for the embodiment of the utility model is shown in the figure;

[0022] Figure 4 The exploded schematic view of the headrest portion and headrest adjusting assembly of the headrest assembly provided for the embodiment of the utility model is shown in the figure;

[0023] Figure 5 The headrest assembly provided for the embodiment of the utility model is shown in the figure, and the headrest portion moves to the other headrest portion to make the joint surface of a pair of headrest portions on the side away from support surface separates;

[0024] Figure 6 The headrest assembly provided for the embodiment of the utility model is shown in the figure, and the headrest portion moves to the other headrest portion to make the joint surface of a pair of headrest portions on the side close to support surface extrudes;

[0025] Figure 7 The headrest assembly provided for the embodiment of the utility model is shown in the figure, and the rotary driving part links a pair of headrest rods to each other on the side of the joint surface.

[0026] Figure 8 The headrest assembly provided by the embodiment of the present application shows a state diagram of a pair of headrest parts moving away from each other;

[0027] Figure 9 The headrest assembly provided by the embodiment of the present application shows a state diagram of a pair of headrest rods rotating away from each other;

[0028] Figure 10 The headrest adjusting assembly and the reinforcing member of the headrest assembly provided by the embodiment of the present application are shown in the structural diagram.

[0029] Explanation of reference signs:

[0030] 10, headrest assembly;

[0031] 100, headrest part; 110, joint surface; 120, support surface; 130, first foaming layer; 140, second foaming layer; 150, third foaming layer;

[0032] 200, headrest adjusting assembly;

[0033] 210, headrest rod; 211, support section; 212, first connecting section; 213, second connecting section;

[0034] 220, rotating driving member; 221, rotating motor; 222, gear set;

[0035] 300, reinforcing member;

[0036] Y, first direction; X, second direction. DETAILED DESCRIPTION

[0037] The headrest in the prior art cannot improve the support comfort of the head and neck of a passenger under the premise of simple structure. Therefore, the present application provides a headrest assembly, which comprises a pair of headrest parts combined with each other by a pair of wall surfaces, the hardness of the headrest parts gradually increases from the joint surface in the direction away from the other headrest part, and each headrest part is installed on a seat frame through a headrest adjusting assembly, the headrest adjusting assembly adjusts the corresponding headrest part to move away from or close to the other headrest part, so as to adjust the posture of the two headrest parts and adapt to the different support requirements of the head of a passenger.

[0038] In order to make the purpose, technical scheme and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0039] As Figure 1As shown, the embodiment of the utility model discloses a headrest assembly 10, this headrest assembly 10 includes the first direction Y setting, with the wall surface of each other to the pair of headrest part 100, the pair of headrest part 100 is combined with the face 110 and is combined to constitute the headrest body, in the second direction X, the side of headrest body forms the support surface 120 that inwardly recesses, need to explain, in this embodiment, the first direction Y is the width direction of passenger cabin, the second direction X is the length direction of passenger cabin.

[0040] Wherein, support surface 120 is used for the occiput part of passenger to support, the depth of inwardly recessed is in 3mm~20mm range, specifically, support surface 120 can inwardly recess 3mm, 5mm, 8mm, 20mm or other depth in above-mentioned range, this support surface 120 not only conforms to the ergonomics, can also provide more conforming and comfortable support according to the natural curve of passenger head, reduces the fatigue feeling when long-distance riding.

[0041] The hardness of headrest part 100 gradually increases from the combined surface 110 along the direction away from the other headrest part 100, this design way of the hardness of headrest part 100 with stepped decline makes headrest part 100 can adaptively adjust according to the different needs of the hardness of different areas (such as occiput, neck, etc.) of passenger head while providing necessary support, further improves the comfort of riding.

[0042] Need to explain, headrest usually consists of foam filler and outer cover. Foam filler determines the softness and support of headrest, and outer cover determines the comfort and appearance of headrest. Common foam fillers include polyurethane (PU) foam and memory foam, and outer cover materials include fabric, leather, imitation leather, etc.

[0043] Optionally, in an embodiment, the combined surface 110 of the headrest part 100 adopts fabric, to reduce the friction noise generated in the extrusion process of the combined surface 110 of the headrest part 100.

[0044] Further, in this embodiment, each headrest part 100 is sequentially stacked with at least two foamed layers from the combined surface 110 along the direction away from the other headrest part 100, and the hardness of the foamed layer close to the combined surface 110 is greater than that of the foamed layer away from the combined surface 110.

[0045] That is, in this embodiment, the foamed layers in the headrest part 100 are arranged in a stacked manner, and each headrest part 100 is sequentially stacked with at least two foamed layers from the combined surface 110 along the direction away from the other headrest part 100. This design not only enhances the support of the headrest, but also realizes more precise support for the head and neck through the combination of foamed layers with different hardness.

[0046] It is worth noting that the foam layer closer to the mating surface 110 is designed to have greater rigidity to provide the necessary support and stability. The foam layer further away from the mating surface 110 uses a relatively softer material to better conform to the curve of the passenger's head, providing a softer and more comfortable feel. This stepped decrease in rigidity allows the headrest to maintain structural stability while also offering excellent comfort and adaptability.

[0047] Optionally, such as Figure 3 As shown, in one embodiment, a headrest portion 100 is provided with a first foam layer 130, a second foam layer 140 and a third foam layer 150 sequentially stacked from the bonding surface 110 in a direction away from the other headrest portion 100.

[0048] The hardness of the first foam layer 130 is less than that of the second foam layer 140, and the hardness of the second foam layer 140 is less than that of the third foam layer 150; and the first foam layer 130 is made of a memory fiber soft material.

[0049] Since the first foam layer 130 of the headrest portion 100 near the joint surface 110 needs to be compressed, the first foam layer 130 is made of a memory fiber soft material, so that it has the ability to recover on its own after being compressed.

[0050] Of course, in another alternative embodiment, a first foam layer 130, a second foam layer 140, a third foam layer 150, and a fourth foam layer are sequentially stacked on one headrest portion 100 from the bonding surface 110 in a direction away from the other headrest portion 100. The hardness of the first foam layer 130 is less than the hardness of the second foam layer 140, the hardness of the second foam layer 140 is less than the hardness of the third foam layer 150, and the hardness of the third foam layer 150 is less than the hardness of the fourth foam layer.

[0051] It should be noted that the multiple foam layers mentioned in the above embodiments do not represent all the foam inside the headrest portion 100; the headrest portion 100 also includes other foams.

[0052] Furthermore, in this embodiment, as Figure 1 , Figure 2 and Figure 4 As shown, each headrest portion 100 is mounted on the seat frame via a headrest adjustment assembly 200. The headrest adjustment assembly 200 adjusts the corresponding headrest portion 100 to move away from or towards the other headrest portion 100, thereby adjusting the posture of the two headrest portions 100 to accommodate different head support needs of the passenger. It should be noted that in this embodiment, the headrest adjustment assembly 200 can adjust the pair of headrest portions 100 to rotate, swing, or translate relative to each other, and this embodiment is not limited to this only possibility.

[0053] Specifically, as shown in Figure 2 the headrest adjusting assembly 200 adjusts the corresponding headrest portion 100 to move away from the other headrest portion 100, so that the pair of headrest portions 100 are separated from the joint surface 110, and there is a clearance space between the pair of headrest portions 100, and the passenger's head is abutted by the corresponding headrest portion 100 on both sides, avoiding the passenger's hairstyle at the back of the head being squeezed and deformed.

[0054] As shown in Figure 5 and Figure 6 the headrest adjusting assembly 200 adjusts the corresponding headrest portion 100 to move towards the other headrest portion 100, so that the pair of headrest portions 100 are pressed on the joint surface 110 on the side close to the support surface 120, and the joint surface 110 on the side away from the support surface 120 is separated.

[0055] The headrest assembly 10 can move each headrest portion 100 in the direction away from or towards the other headrest portion 100 through the headrest adjusting assembly 200, thereby adjusting the relative attitude of the two headrest portions 100. This design enables the headrest assembly 10 to flexibly adapt to the head size and support preferences of different passengers, providing a personalized support experience.

[0056] In one embodiment, the headrest adjusting assembly 200 includes a headrest rod 210 and a rotary drive 220, one end of the headrest rod 210 is connected to the corresponding headrest portion 100, and the other end is mounted to the seat frame; the rotary drive 220 is mounted to the seat frame and in transmission connection with the other end of the headrest rod 210.

[0057] The rotary drive 220 drives the headrest rod 210 and links the corresponding headrest portion 100 to rotate in the direction away from the side of the support surface 120, so that the pair of headrest portions 100 are separated from the joint surface 110.

[0058] Of course, the rotary drive 220 can also drive the headrest rod 210 and link the corresponding headrest portion 100 to rotate in the direction close to the side of the support surface 120, so that the pair of headrest portions 100 are close to each other and can be combined with each other through the joint surface 110; or the pair of headrest portions 100 are close to the first foam layer 140 on the side of the support surface 130, and the joint surface 110 is connected and pressed to each other, while the first foam layer 140 on the side away from the support surface 130 is separated.

[0059] Optionally, in an embodiment, the rotary drive 220 is configured as a rotary motor 221 (for example, a Hall motor), and an output end of the rotary motor 221 is in transmission connection with the corresponding headrest rod 210 through a gear set 222. The rotary motor 221 links the rotation angle range of the headrest rod 210 to be between 30° and 60°. Specifically, the rotary motor 221 can link the rotation angle of the headrest rod 210 to be 30°, 35°, 45°, 60°, or any other angle within the above range. The person skilled in the art can design according to the actual situation and specific needs, and the utility model does not make specific limitations hereon.

[0060] It should be noted that, in the embodiment, the output shaft of the rotary motor 221 is parallel to the second direction X, the output shaft of the rotary motor 221 is in transmission connection with the driving gear of the gear set 222, the other end of the headrest rod 210 is connected with the driven gear, and the driving gear and the driven gear in the gear set 222 are configured as a pair of bevel gears, which not only need to realize the transmission of power, but also need to change the direction of the power.

[0061] In the assembly process, the headrest part 100 can be connected with the headrest rod 210 first, and then the headrest rod 210 is assembled to the seat frame. At this time, since the flexible filler has not been filled on the seat frame, the rotary motor 221 and the gear set 222 are connected with the headrest rod 210 arranged on the seat frame.

[0062] In another alternative embodiment, a pair of headrest rods 210 share one rotary motor 221, the rotary motor 221 is arranged between the pair of headrest rods 210, the output end of the rotary motor 221 is along the vertical direction, the output end of the rotary motor 221 is connected with the pair of headrest rods 210 through a rack, and the racks connected with the pair of headrest rods 210 are located on the same side of the output end of the rotary motor 221, so as to ensure that the rotary motor 221 can link the rotation of the pair of headrest rods 210 in the same direction or in the opposite direction when rotating.

[0063] Specifically, the headrest rod 210 includes a support section 211 arranged outside the headrest part 100, and a connecting section arranged inside the headrest part 100 and bent and extended relative to the support section 211. The free end of the support section 211 is configured as the other end of the headrest rod 210, which is used for transmission connection with the rotary drive 220.

[0064] Optionally, in an embodiment, as shown in FIG. 6, the rotary motor 221 is arranged on the seat frame 200, and the output end of the rotary motor 221 is in transmission connection with the headrest rod 210 through the gear set 222. Figure 7 and Figure 9As shown, the connecting section includes a first connecting section 212 and a second connecting section 213 connected in sequence, one end of the first connecting section 212 is connected with the supporting section 211 and extends away from the bonding surface 110, the other end of the first connecting section 212 is connected with the second connecting section 213, and the second connecting section 213 extends in a direction parallel to the bonding surface 110. This connecting section enhances the supporting strength of the headrest rod 210 and the headrest part 100 through the first connecting section 212 and the second connecting section 213.

[0065] When the rotating driving member 220 drives the headrest rod 210 to rotate, the first connecting section 212 and the second connecting section 213 have a larger contact area with the inner side foam of the headrest part 100, and can better link a pair of headrest parts 100 to rotate.

[0066] Of course, the specific structure of the connecting section is not limited to the structure in the above embodiment, and in another alternative embodiment, the connecting section includes a first connecting section extending along the supporting section 211, a second connecting section connected with the first connecting section and extending away from the bonding surface 110, and a third connecting section connected with the second connecting section and extending in a vertical direction towards the supporting section 211, the first connecting section, the second connecting section and the third connecting section form a "M" shape, and this structure can also increase the supporting strength of the headrest rod 210 and the headrest part 100.

[0067] In addition, as Figure 10 shown, in order to improve the supporting strength of the headrest rod 210 on the headrest part 100, a reinforcing member 300 is also provided at a position inside the headrest part 100 and sleeved outside the connecting section. The reinforcing member 300 is provided as a pair of reinforcing plates extending in a direction perpendicular to the bonding surface 110, the peripheries of the pair of reinforcing plates at least partially connect, and a cavity accommodating the connecting section is formed between the pair of reinforcing plates.

[0068] Optionally, in an embodiment, the reinforcing member 300 is a plate made of EPP material (Expanded Polypropylene), which is a high-crystalline polymer / gas composite material with excellent performance. The reinforcing member 300 made of EPP material has excellent characteristics such as environmental protection, pressure resistance, cushioning, heat insulation, etc.

[0069] Of course, it should be noted that the pair of headrest parts 100 of the headrest assembly 10 can not only be adjusted in posture by the corresponding headrest adjusting assembly 200, but also can be linked to move in a vertical direction relative to the seat frame by a lifting assembly provided between the pair of headrest parts 100 and the seat frame, so as to adapt to the supporting needs of passengers of different heights.

[0070] Specifically, in one embodiment, the lifting assembly includes a plurality of round holes arranged on the support segments 211 of the pair of headrest rods 210 at intervals along the axial direction, and steel balls are formed in the corresponding positions of the seat frame to correspond to the round holes on the pair of headrest rods 210. The position of the headrest portion 100 in the vertical direction can be changed by manually adjusting the round holes on the headrest rods 210 that cooperate with the steel balls.

[0071] Of course, in another embodiment, the lifting assembly includes a lifting drive (such as a linear motor) arranged on the seat frame and in transmission connection with the other end of the support segments 211 of the headrest rods 210. The pair of headrest rods 210 is moved in the vertical direction by the lifting drive, thereby changing the position of the headrest portion 100 in the vertical direction.

[0072] In the above embodiment, the rotating drive 220 drives the headrest rods 210 to link the rotation of the headrest portions 100 towards or away from each other. Of course, in another alternative embodiment, the headrest adjustment assembly 200 includes the headrest rods 210 and a swinging drive. One end of the headrest rods 210 is connected to the corresponding headrest portion 100, and the other end is mounted on the seat frame. The swinging drive is mounted on the seat frame and in transmission connection with the other end of the headrest rods 210. The swinging drive can link the headrest rods 210 to swing around the other end, so that the pair of headrest portions 100 swing towards or away from each other.

[0073] In another embodiment, the headrest adjustment assembly 200 includes the headrest rods 210 and a displacement drive. One end of the headrest rods 210 is connected to the corresponding headrest portion 100, and the other end is mounted on the seat frame. The displacement drive (a linear motor commonly used in the art) is mounted on the seat frame and in transmission connection with the other end of the headrest rods 210. The displacement drive can link the headrest rods 210 to swing around the other end, so that the pair of headrest portions 100 translate towards or away from each other.

[0074] As for the specific structure of the headrest adjustment assembly 200, those skilled in the art can design it according to the actual situation and specific needs, and the present application does not limit it to be unique.

[0075] Further, in order to enable the headrest portion 100 to adjust its position more accurately and thus meet the needs of passengers, in the present embodiment, the headrest assembly 10 further includes a pressure sensor embedded in the pair of headrest portions 100. Moreover, the pressure sensor and the headrest adjustment assembly 200 are both in communication connection with the controller of the vehicle. The pressure sensor transmits the collected pressure signals to the controller in the form of electrical signals, and the controller adjusts the posture of the headrest portion 100 according to the feedback pressure signals.

[0076] Specifically, the pressure sensor arranged in the headrest part 100 can adopt a soft pressure sensor to avoid foreign body sensation of the headrest part 100 when supporting the head of the passenger, and the specific model and specifications of the pressure sensor are not limited in the utility model.

[0077] It should be noted that in a general scenario, a pair of headrest parts 100 are combined with each other at the joint surface 110, and the support surface 120 is inwardly recessed, so that the headrest parts can more comfortably support the head and neck of the passenger; when the controller of the vehicle detects that the vehicle has collided (for example, a front collision), the controller controls a pair of rotary motors 221 and drives a pair of headrest rods 210 to rotate towards each other, so that the joint surfaces 110 on the side of the pair of headrest parts close to the support surface 120 are extruded, the support strength of the headrest parts 100 on the side close to the support surface 120 is increased, and the risk of injury to the head and neck of the passenger is reduced.

[0078] In summary, the utility model discloses a headrest assembly 10, and the working process of the headrest part 100 will be described below.

[0079] As shown in Figure 1 , a pair of headrest parts 100 of the headrest assembly 10 are combined with each other at the joint surface 110 to form a headrest whole, at this time, the support surface 120 on the side of the headrest whole in the second direction X is used to support the back of the head of the passenger. At the same time, a pair of headrest parts 100 are installed on the seat frame through the headrest adjusting assembly 200. For example, each headrest part 100 is connected to the seat frame through the headrest rod 210, and the other end of the headrest rod 210 is provided with the rotary driving part 220.

[0080] In addition, each headrest part 100 of each headrest part 100 is sequentially stacked with at least two foam layers from the joint surface 110 in the direction away from the other headrest part 100, for example Figure 3 As shown in

[0081] As shown in Figure 7 , a pair of rotary driving parts 220 drive the corresponding headrest rods 210 to rotate towards each other, so that the joint surfaces 110 on the side of a pair of headrest parts 100 away from the support surface 120 are separated (see Figure 5 ), and the joint surfaces 110 on the side close to the support surface 120 are extruded (see Figure 6 ), so as to increase the support strength of the headrest parts 100 on the side close to the support surface 120.

[0082] As shown in Figure 9As shown, a pair of rotary driving members 220 link corresponding headrest rods 210 to rotate away from each other, so that a pair of headrest portions 100 are separated from each other, and an avoiding space is formed between the pair of headrest portions 100 (see Figure 8 )。

[0083] The embodiment of the utility model discloses a kind of cars, including the headrest assembly 10 of any one of the above, headrest assembly 10 is installed on seat framework, the structure of this headrest assembly 10 is simple, and adapt to the different support needs of passenger head, to improve the ride comfort of car.

[0084] It should be noted that, in addition to the above specific embodiment of the embodiment of the utility model, other advantages and effects of the utility model can be easily understood by the person skilled in the art from the content disclosed in the specification. Although the description of the utility model is introduced in conjunction with the preferred embodiment, it does not mean that the features of the utility model are limited to this embodiment. On the contrary, the purpose of introducing the utility model in conjunction with the embodiment is to cover other options or modifications that may be extended based on the claims of the utility model. In order to provide a deep understanding of the utility model, many specific details are included in the above description, and the utility model can also be implemented without using these details. In addition, in order to avoid confusion or obscure the focus of the utility model, some specific details will be omitted in the description. It should be noted that, in the case of no conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0085] It should be noted that, in this specification, similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0086] In the description of the present embodiment, it should be noted that the orientation or position relationship indicated by the terms "upper", "lower", "inner", "bottom" and the like is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly placed when the utility model product is used, only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the utility model.

[0087] The terms "first", "second" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0088] In the description of the present embodiment, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "set", "connected", "connected" should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present embodiment can be understood according to the specific circumstances.

[0089] Although the present application has been illustrated and described with reference to certain preferred embodiments thereof, it should be understood that the above description is a further detailed explanation of the present application in connection with the specific embodiments, and the specific implementation of the present application should not be limited to these descriptions. Those skilled in the art can make various changes in form and details, including making a number of simple deductions or substitutions, without departing from the spirit and scope of the present application.

Claims

1. A headrest assembly, characterized by, The headrest assembly comprises a pair of headrest portions arranged in a first direction, the pair of headrest portions are combined to form a headrest body by combining the facing wall surfaces of the pair of headrest portions, and one side of the headrest body forms a concave support surface in a second direction, the first direction and the second direction being perpendicular; wherein, The hardness of each headrest portion gradually increases from the combined surface in a direction away from the other headrest portion; and The headrest assembly further comprises a headrest adjusting assembly in driving connection with each headrest portion, and each headrest portion is mounted on a seat frame by the headrest adjusting assembly; The headrest adjusting assembly adjusts the corresponding headrest portion to move away from the other headrest portion, so that the pair of headrest portions are separated from the combined surface and have a clearance space between the pair of headrest portions; or The headrest adjusting assembly adjusts the corresponding headrest portion to move close to the other headrest portion, so that the combined surface close to the support surface side of the pair of headrest portions is extruded, and the combined surface away from the support surface side is separated.

2. The headrest assembly of claim 1, wherein The headrest adjusting assembly comprises: A headrest rod, one end of the headrest rod is connected to the corresponding headrest portion, and the other end of the headrest rod is mounted on the seat frame; A rotary drive, the rotary drive is mounted on the seat frame and is in driving connection with the other end of the headrest rod; Wherein, the rotary drive drives the headrest rod and links the corresponding headrest portion to rotate in a direction away from the support surface side, so that the pair of headrest portions are separated from the combined surface; or, The rotary drive drives the headrest rod and links the corresponding headrest portion to rotate in a direction close to the support surface side.

3. The headrest assembly of claim 2, wherein The headrest rod comprises a support section arranged outside the headrest portion and a connecting section arranged inside the headrest portion and bent and extended relative to the support section; wherein, The connecting section comprises a first connecting section and a second connecting section connected in sequence, one end of the first connecting section is connected with the support section and extends away from the combined surface side, the other end of the first connecting section is connected with the second connecting section, and the second connecting section extends in a direction parallel to the combined surface.

4. The headrest assembly of claim 3, wherein The headrest assembly further comprises a reinforcing member located inside the headrest portion and sleeved outside the connecting section; wherein, The reinforcing member is arranged as a pair of reinforcing plates extending in a direction perpendicular to the combined surface, the peripheries of the pair of reinforcing plates are at least partially connected, and the pair of reinforcing plates form a cavity accommodating the connecting section therebetween.

5. The headrest assembly of claim 3, wherein The rotary drive is arranged as a rotary motor, and the output end of the rotary motor is in driving connection with the corresponding support section through a gear set.

6. The headrest assembly of any of claims 1-5, wherein, Each headrest portion is sequentially arranged with at least two foamed layers from the combined surface in a direction away from the other headrest portion, and the hardness of the foamed layer close to the combined surface is greater than the hardness of the foamed layer away from the combined surface.

7. The headrest assembly of claim 6, wherein One of the headrest portions is sequentially stacked with a first foamed layer, a second foamed layer and a third foamed layer from the joint surface in a direction away from the other headrest portion; wherein, The hardness of the first foamed layer is less than the hardness of the second foamed layer, and the hardness of the second foamed layer is less than the hardness of the third foamed layer; and, The first foamed layer is made of a memory fiber-like soft material.

8. The headrest assembly of any of claims 1-5, wherein, The headrest assembly further comprises a pressure sensor embedded in the pair of headrest portions; and, The pressure sensor and the headrest adjusting assembly are both communicatively connected with a controller of the vehicle.

9. The headrest assembly of any of claims 1-5, wherein, The headrest assembly further comprises a lifting assembly disposed between the pair of headrest portions and the seat frame; The lifting assembly is linked to move the pair of headrest portions in a vertical direction relative to the seat frame.

10. An automobile characterized by comprising: A headrest assembly as claimed in any one of claims 1-9 is mounted on the seat frame.

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