Backrest and automobile seat

Abstract

The backrest comprises a backrest assembly, the backrest assembly is provided with a base plate, a left waist and back supporting pad is arranged in the left area of the front side of the base plate, a right waist and back supporting pad is arranged in the right area of the front side of the base plate, and a shoulder and back supporting pad is arranged on the upper portion of the front side of the base plate; the left waist and back supporting pad, the right waist and back supporting pad and the shoulder and back supporting pad are detachably assembled on the base plate. The beneficial effects of the invention are that the left waist and back supporting pad, the right waist and back supporting pad and the shoulder and back supporting pad are detachably installed with the base plate, so that the supporting pads can be independently replaced and maintained, and meanwhile, the supporting pads with different thicknesses, hardness, materials and shapes can be provided for users to select and match; and the diversified and personalized use requirements of the user are effectively met.

Description

Technical Field

[0001] The invention relates to the technical field of automobile seats, in particular to a backrest and an automobile seat. Background Art

[0002] In today's automotive seat market, users have an increasing demand for personalized seats. More and more users expect to be able to configure seats according to their personal preferences, or to change seats to different shapes or colors during use, or to add or reduce certain functional configurations of the seats (heating, ventilation, massage, etc.).

[0003] However, the appearance and functional configuration of car seats currently on the market are usually fixed during production, which makes it difficult to quickly and flexibly replace them according to the user's personal preferences and cannot meet the diverse needs of consumers.

[0004] Therefore, inventing a backrest that can achieve personalized customization has important practical significance and market value. Summary of the invention

[0005] In view of this, one of the objects of the present invention is to provide a backrest that can adapt to the personalized matching needs of users.

[0006] To achieve the above purpose, the technical solution of the present invention is as follows:

[0007] A backrest includes a backrest assembly, the key of which is that the backrest assembly has a base plate, a left waist and back support pad is provided in the front left area of ​​the base plate, a right waist and back support pad is provided in the front right area, and a shoulder and back support pad is provided in the front upper part, and the left waist and back support pad, the right waist and back support pad and the shoulder and back support pad are all detachably mounted on the base plate.

[0008] With the above structure, the left waist and back support pad, the right waist and back support pad and the shoulder and back support pad are all detachably installed on the base plate. This design enables each support pad to be replaced and maintained independently. At the same time, support pads of different thicknesses, hardness, materials and shapes can be provided for users to choose, effectively meeting the diverse and personalized usage needs of users.

[0009] Preferably, there are gaps between the left waist and back support pad and the right waist and back support pad, between the left waist and back support pad and the shoulder and back support pad, and between the right waist and back support pad and the shoulder and back support pad. The above structure makes the backrest beautiful and can better demonstrate the modular concept of the seat backrest.

[0010] As a preference, a lower back support pad is detachably mounted on the lower area of ​​the front side of the base plate. With the above structure, the lower back support pad can provide comfortable support for the lower back of the user.

[0011] As a preferred embodiment: the left waist and back support pad comprises a left waist and back support plate, a left waist and back foam body located at the front side of the left waist and back support plate, and a left waist and back cover covering the surface of the left waist and back foam body, the circumferential edge of the left waist and back foam body is wrapped around the circumferential edge of the left waist and back support plate so that the two are connected as a whole, and a connection structure is distributed on the rear side of the left waist and back support plate, and the connection structure is used to be fixedly assembled on the base plate. The above structure has the technical advantages of simple structure, convenient production and convenient disassembly and assembly.

[0012] Preferably, the backrest assembly further comprises a metal outer frame, the base plate is mounted on the front side of the metal outer frame, an exterior cover plate is arranged on the rear side of the metal outer frame, a hollow area is formed between the base plate and the exterior cover plate, and a ventilation system is arranged in the hollow area. The above structure can increase the ventilation function of the backrest in a limited space, which can meet the diverse needs of users.

[0013] Preferably, the ventilation system includes a first fan and a plurality of air ducts, wherein the first fan has an air inlet end and an air outlet end, and one end of each of the air ducts is connected to the air inlet end of the first fan, and the other end is respectively connected to the shoulder support pad, the left waist support pad, and the right waist support pad; or, one end of each of the air ducts is connected to the air outlet end of the first fan, and the other end is respectively connected to the shoulder support pad, the left waist support pad, and the right waist support pad. With the above structure, by connecting a single first fan to a plurality of air ducts, and the end of each air duct away from the first fan can be respectively connected to each support pad, the operation of the first fan can ensure that the shoulder support pad, the left waist support pad, and the right waist support pad can all be ventilated, thereby providing a comfortable riding environment for the user.

[0014] As a preference, the base plate is flexible; the inner end of the left waist and back support pad is fixed on the base plate, and the middle part of the left waist and back support pad is connected to the base plate through a first rotating support assembly so as to be rotatable forward and backward; when the user's back is pressed on the inner end area of ​​the left waist and back support pad, the left waist and back support pad can be deflected backward with the first rotating support assembly as a fulcrum, so that the left waist and back support pad forms an embracing support for the user's back;

[0015] An elastic reset component is provided between the outer end of the left waist and back support pad and the substrate. When the user's back is facing forward and away from the backrest, the elastic reset component is used to reset the left waist and back support pad. With the above structure, when the user leans on the seat back, the pressure on the inner end of the left waist and back support pad will be greater than that on the outer end. In addition, the substrate is flexible. Therefore, during the compression process of the left waist and back support pad, it can be deflected backward as a whole with the first rotating support component as the fulcrum, that is, the left waist and back support pad moves with the inner end facing backward and the outer end facing forward, so as to form an embracing support for the user's back. At the same time, the elastic reset component can drive the outer end of the substrate to lift forward, thereby improving the wrapping of the backrest to the side of the user's back. When the user's back is facing forward and away from the backrest, the substrate can be restored to the initial state, and the elastic reset component can reset the left waist and back support pad, that is, the elastic reset component drives the outer end of the left waist and back support plate to rotate backward and reset, so that the left waist and back support pad is restored to the initial state.

[0016] Preferably, the first rotation support assembly is a ball joint structure. With the above structure, the ball joint structure can increase the flexibility of the left waist and back support pad to rotate, so as to better adapt to the user's back.

[0017] A second object of the present invention is to provide a car seat, the key of which is that the seat includes the above-mentioned backrest.

[0018] Preferably, it also includes a seat cushion assembly, which has a support base, a main support module is detachably installed in the middle area of ​​the support base, side support modules are detachably installed on both sides of the support base, and a front support module is detachably installed at the front end of the support base. With the above structure, the main support module, the side support module and the front support module can provide support for the user's buttocks, both sides of the thighs and the front of the thighs respectively. The detachable design also has the advantage of easy installation and disassembly. Users can choose support modules of different materials, shapes, softness and hardness to combine according to their own body shape and riding habits, which effectively meets the diverse and personalized use needs of users.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The backrest provided by the present invention is composed of a plurality of support pads, and each support pad is detachably installed. This design enables each support pad to be replaced and maintained independently, reducing the maintenance cost and difficulty. At the same time, the seat back can be personalized according to different user needs.

[0021] 2. With the backrest provided by the present invention, when the user leans on the seat back, the pressure on the inner end of the left waist and back support cushion will be greater than that on the outer end. In addition, the substrate is flexible. Therefore, when the left waist and back support cushion is under pressure, it can be deflected backward as a whole with the first rotating support assembly as the fulcrum, that is, the left waist and back support cushion moves in a swinging trajectory with the inner end facing backward and the outer end facing forward, thereby forming an embracing support for the user's back. At the same time, the elastic reset assembly can drive the outer end of the substrate to lift forward, thereby improving the wrapping of the backrest on the side of the user's back. When the user's back is facing forward and away from the backrest, the substrate can return to its initial state, and the elastic reset assembly can reset the left waist and back support cushion, that is, the elastic reset assembly drives the outer end of the left waist and back support plate to rotate backward and reset, thereby restoring the left waist and back support cushion to its initial state. The setting of the elastic reset component not only ensures that the left waist and back support pad can automatically reset after being subjected to force, thereby improving the convenience and comfort of seat use, but also, when embracing and supporting the user's back, the elastic reset component can eliminate the installation gap between the left waist and back support pad and the base plate, thereby ensuring riding comfort.

[0022] 3. Since the base plate is flexible, it can adaptively adjust with the deformation of the left waist and back support cushion and the dynamic changes of human body posture, further enhancing the seat's embracing support effect on the human body and improving the user experience.

[0023] 4. The setting of the elastic reset component not only ensures that the left waist and back support pad can automatically reset after being subjected to force, thereby improving the convenience and comfort of seat use, but also, when embracing and supporting the user's back, the elastic reset component can eliminate the installation gap between the left waist and back support pad and the base plate, thereby ensuring riding comfort.

[0024] 5. The car seat provided by the present invention has a modular design for the backrest and the seat cushion, and each support pad and module can be detached and installed. This allows for quick and easy replacement when a module or support pad is damaged or needs to be upgraded, reducing maintenance costs and difficulty. It also facilitates personalized configuration of the seat according to different user needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a car seat;

[0026] Figure 2 A schematic diagram showing the back structure of a car seat;

[0027] Figure 3 A schematic diagram showing the back structure of the backrest;

[0028] Figure 4 It is a schematic diagram of the structure in which each support plate is installed on the backrest;

[0029] Figure 5A cross-sectional view showing the structure of the first rotating support assembly 2;

[0030] Figure 6 It is an exploded schematic diagram of the left waist and back support pad 3;

[0031] Figure 7 A schematic diagram showing the back structure of the left waist and back support pad 3;

[0032] Figure 8 is a schematic diagram of the structure of the ventilation system 6;

[0033] Fig. 9 A schematic diagram showing the installation position of the elastic reset component 4;

[0034] Fig.10 is a cross-sectional view of the elastic reset assembly 4;

[0035] Fig.11 An exploded schematic diagram of the main support module C, the wing support module D and the front support module E as a whole and the support base plate B1;

[0036] Fig.12 It is a schematic diagram of the structure of the supporting base plate B1;

[0037] Fig.13 It is a schematic diagram of the structure in which each support plate is installed on the support base plate B1;

[0038] Fig.14 Schematic diagram of the exploded view of the main support module C, the side support module D and the front support module E. DETAILED DESCRIPTION

[0039] The present invention is further described below in conjunction with embodiments and drawings.

[0040] like Figure 1 As shown, a car seat includes a backrest, which includes a backrest assembly A. The backrest assembly A has a base plate A1. A left waist and back support pad 3 is provided in the left front area of ​​the base plate A1, a right waist and back support pad 8 is provided in the right front area of ​​the base plate A1, and a shoulder and back support pad 1 is provided in the upper front part of the base plate A1. The left waist and back support pad 3, the right waist and back support pad 8 and the shoulder and back support pad 1 are all detachably assembled on the base plate A1.

[0041] Based on the above structural design, the left waist and back support pad 3, the right waist and back support pad 8 and the shoulder and back support pad 1 are all detachably installed on the base plate A1. This design enables each support pad to be replaced and maintained independently, reducing the maintenance cost and difficulty. At the same time, it can also provide support pads of different thicknesses, hardness, materials and shapes for users to choose, effectively meeting the diverse and personalized usage needs of users.

[0042] Further, by Figure 1It can be seen that there are gaps between the left waist and back support pad 3 and the right waist and back support pad 8, between the left waist and back support pad 3 and the shoulder and back support pad 1, and between the right waist and back support pad 8 and the shoulder and back support pad 1. Such a structural design makes the backrest beautiful and can better demonstrate the modular concept of the seat backrest.

[0043] refer to Figure 1 , 4 6, the left waist and back support pad 3 includes a left waist and back support plate 31 detachably connected to the base plate A1, a left waist and back foam body 32 arranged on the front side of the left waist and back support plate 31, and a left waist and back cover 33 covering the surface of the left waist and back foam body 32, combined with Figure 6 and Figure 7 It can be seen that the circumferential edge of the left waist and back foam body 32 is wrapped around the circumferential edge of the left waist and back support plate 31 so that the two are connected as a whole. A connecting structure 9 is distributed on the rear side of the left waist and back support plate 31, and the connecting structure 9 is used to be fixedly assembled on the substrate A1. In this embodiment, the left waist and back support pad 3 and the right waist and back support pad 8 are arranged on the substrate A1 in a left-right symmetrical manner, and the right waist and back support pad 8 has the same structure as the left waist and back support pad 3, which will not be repeated here. Similarly, the shoulder and back support pad 1 includes a shoulder and back support plate 11 detachably connected to the substrate A1, a shoulder and back foam body 12 arranged on the shoulder and back support plate 11, and a shoulder and back cover covering the surface of the shoulder and back foam body 12, and the circumferential edge of the shoulder and back foam body 12 is wrapped around the circumferential edge of the shoulder and back support plate 11. With such a design, each support pad is composed of three basic components: a support plate, a foam body and a face cover, and has the technical advantages of simple structure, convenient production, low cost and convenient disassembly and assembly. The foam body is directly wrapped around the circumferential edge of the support plate, eliminating additional fasteners and reducing assembly steps. At the same time, the support plate is fixed to the base plate A1 through the connecting structure 9, which improves the convenience of disassembly and assembly of each support pad and can be applied to the modular structure of the seat back.

[0044] like Figure 4 and Fig. 9 As shown, in this embodiment, the substrate A1 is flexible, the inner end of the left waist and back support pad 3, that is, the right end, is fixed on the substrate A1, the middle part of the left waist and back support pad 3 is connected to the substrate A1 through the first rotating support assembly 2 and can be deflected forward and backward, and an elastic reset assembly 4 is provided between the outer end of the left waist and back support pad 3, that is, the left end, and the substrate A1.

[0045] When the user leans on the seat back, the user's back is pressed against the inner end area of ​​the left waist and back support pad 3. At this time, the pressure on the inner end of the left waist and back support pad 3 is greater than that on the outer end. In addition, the substrate A1 is flexible. Therefore, during the compression process of the left waist and back support pad 3, it can be deflected backward as a whole with the first rotating support component 2 as the fulcrum, that is, the left waist and back support pad 3 moves in a swinging trajectory with the inner end facing backward and the outer end facing forward, thereby forming an embracing support for the user's back. At the same time, the elastic reset component 4 can drive the outer end of the substrate A1 to lift forward, thereby improving the wrapping of the backrest to the side of the user's back. When the user's back is facing forward away from the backrest, the substrate A1 can be restored to its initial state, and the elastic reset component 4 can reset the left waist and back support pad 3, that is, the elastic reset component 4 drives the outer end of the left waist and back support plate 31 to rotate backward and reset, thereby restoring the left waist and back support pad 3 to its initial state. The provision of the elastic reset component 4 not only ensures that the left waist and back support pad 3 can automatically reset after being subjected to force, thereby improving the convenience and comfort of using the seat, but also, when embracing and supporting the user's back, the elastic reset component 4 can eliminate the installation gap between the left waist and back support pad 3 and the substrate A1, thereby ensuring riding comfort.

[0046] On the other hand, since the substrate A1 is flexible, the substrate A1 can adaptively adjust with the deformation of the left waist and back support pad 3 and the dynamic changes of the human body posture, further enhancing the seat's embracing support effect on the human body and improving the user experience.

[0047] In this embodiment, the first rotation support assembly 2 is a ball joint structure disposed between the left waist and back support pad 3 and the base plate A1. When the left waist and back support pad 3 is subjected to pressure from the user's back, it can rotate backwards with the ball joint as the center. The ball joint structure can increase the flexibility of the left waist and back support pad 3 to better adapt to the user's back.

[0048] The specific structure of the first rotating support assembly 2 is as follows: Figure 4 and 5 The base plate A1 is provided with a mounting groove A11 extending backward, and the first rotation support assembly 2 includes a ball joint seat 21 and a ball head 22 adapted to the ball joint seat 21, wherein the ball joint seat 21 is fixedly installed in the mounting groove A11, and the ball head 22 is fixedly installed at the rear side of the left waist and back support plate 31. When the left waist and back support pad 3 is subjected to the pressure of the user's back, the right end of the left waist and back support plate 31 can rotate backward with the ball joint seat 21 as the center.

[0049] In this embodiment, two first rotation support assemblies 2 are provided, and the two first rotation support assemblies 2 are located at the deflection center line of the left waist and back support pad 3 and are arranged at intervals along the height direction of the left waist and back support pad 3. The two sets of first rotation support assemblies 2 can effectively disperse the pressure, avoid structural deformation or damage caused by single-point force, and at the same time, can also make the left waist and back support plate 31 move more steadily and smoothly when rotating.

[0050] Furthermore, Fig. 9 and 10 As shown, the elastic reset assembly 4 includes a first mounting seat 41, a second mounting seat 42, and an elastic element 43 arranged between the first mounting seat 41 and the second mounting seat 42. In this embodiment, the elastic element 43 is a tension spring. The first mounting seat 41 is arranged on the inner side of the outer end of the left waist and back support plate 31, and the second mounting seat 42 is arranged on the side of the substrate A1 opposite to the first mounting seat 41. The two ends of the tension spring are respectively connected to the first mounting seat 41 and the second mounting seat 42. When the inner end of the left waist and back support pad 3 is rotated backward under pressure, the outer end of the left waist and back support plate 31 drives the first mounting seat 41 to lift forward, so that the tension spring is stretched. When the user's back faces forward and away from the backrest, the outer end of the substrate A1 resets backward, and the tension spring releases elastic potential energy, which can drive the outer end of the left waist and back support plate 31 to reset, thereby restoring the left waist and back support pad 3 to its initial state.

[0051] like Figure 3 As shown, the inner end of the left waist and back support plate 31 is fixedly connected to the base plate A1 through the connecting structure 9. Figure 6 As shown, the connection structure 9 includes a hanging hole 91 set on the base plate A1 and a hanging column 92 protruding backward on the back side of the left waist and back support plate 31. The hanging column 92 can be stably supported in the hanging hole 91, ensuring the convenience and stability of the installation of the left waist and back support plate 31.

[0052] Further, by Figure 3 and Figure 6 As shown, the hanging hole 91 includes a guide section 911 and a fixed section 912 which are connected in sequence from top to bottom. The guide section 911 is configured to be wide at the top and narrow at the bottom. Its inclined inner wall can guide the hanging column 92 during the installation process, so that the hanging column 92 can smoothly enter the hanging hole 91. A limiting portion 921 is provided at the rear end of the hanging column 92, and the diameter of the limiting portion 921 is larger than that of the hanging column 92. During installation, the left waist and back support plate 31 is hung from top to bottom, and the limiting portion 921 passes through the guide section 911. The hanging column 92 enters the fixed section 912 downward under the guidance of the guide section 911 and is stably fixed at the bottom of the fixed section 912. At this time, the limiting portion 921 can prevent the hanging column 92 from escaping from the fixed section 912, so as to ensure that the connection between the left waist and back support plate 31 and the base plate A1 is stable and reliable.

[0053] In addition to the above-mentioned embodiment, the connection structure 9 is that the hanging hole 91 is set on the left waist and back support plate 31, and the hanging column 92 is set on the base plate A1 (not shown in the figure).

[0054] In this embodiment, there are two groups of connection structures 9, which are distributed along the height direction of the left waist and back support plate 31. This layout significantly enhances the stability of the connection between the left waist and back support plate 31 and the base plate A1, so that the left waist and back support plate 31 can be balanced.

[0055] Please refer to Figure 1 and Figure 4 , the shoulder and back support pad 1 is arranged in the upper area of ​​the base plate A1 so as to be deflected up and down through the second rotating support assembly 5. The second rotating support assembly 5 can be arranged in the middle or upper part of the shoulder and back support pad 1. In the present embodiment, the second rotating support assembly 5 is located in the middle part of the shoulder and back support pad 1, and the second rotating support assembly 5 is provided with two groups, which are respectively located at the two ends in the width direction of the shoulder and back support pad 1. When the user leans on the seat back, the shoulder and back support pad 1 can deflect backward at the fulcrum of the second rotating support assembly 5 at the lower end of the shoulder and back support pad 1 according to the pressure and angle of the upper body of the user, so as to better fit the shoulders of the user and provide more accurate and effective support for the shoulders. In the present embodiment, the structure of the second rotating support assembly 5 is the same as that of the first rotating support assembly 2, which will not be repeated here.

[0056] Please refer to Figure 2 The backrest assembly A also includes an N-shaped metal frame A2, the base plate A1 is installed on the front side of the metal frame A2, and the rear side of the metal frame A2 is provided with an exterior cover plate (not shown in the figure), and a hollow area is formed between the base plate A1 and the exterior cover plate, and a ventilation system 6 is arranged in the hollow area. In this way, the backrest ventilation function is added in a limited space, which has the advantages of reasonable layout and compactness.

[0057] Please refer to Figure 2 and 8 The ventilation system 6 includes a first fan 61 and a plurality of air ducts 62, wherein the first fan 61 has an air inlet end and an air outlet end. One end of each air duct 62 is connected to the air inlet end of the first fan 61, and the other end is connected to the shoulder and back support pad 1, the left waist and back support pad 3 and the right waist and back support pad 8 respectively. When the first fan 61 works, the cold air in the car can be adsorbed to the surface of the shoulder and back support pad 1, the left waist and back support pad 3 and the right waist and back support pad 8 through each air duct 62, so as to achieve rapid cooling of the backrest. Alternatively, one end of each air duct 62 is connected to the air outlet end of the first fan 61, and the other end is connected to the shoulder and back support pad 1, the left waist and back support pad 3 and the right waist and back support pad 8 respectively. The first fan 61 guides the airflow through each air duct 62 to the shoulder and back support pad 1, the left waist and back support pad 3 and the right waist and back support pad 8, and then flows out from the surface of the shoulder and back support pad 1, the left waist and back support pad 3 and the right waist and back support pad 8 to achieve the ventilation function of the backrest. This embodiment will be described by taking an example in which one end of the air duct 62 is connected to the air outlet end of the first fan 61 .

[0058] Based on this, by connecting a single first fan 61 to multiple air ducts 62, and the ends of each air duct 62 away from the first fan 61 can be respectively connected to each support pad, when the first fan 61 is running, it can ensure that the shoulder support pad 1, the left waist support pad 3 and the right waist support pad 8 can all be ventilated, thereby providing a comfortable riding environment for the user.

[0059] To improve the efficiency of ventilation and heat dissipation, refer to Figure 1 There are ventilation holes a distributed on the left waist and back foam body 32 and the shoulder and back foam body 12. After the airflow blown out by the first fan 61 is transported to the corresponding module through the air duct 62, it can quickly pass through the ventilation holes a and directly act on the back of the human body, giving the user the most direct ventilation feeling and significantly improving the user's riding comfort.

[0060] In this embodiment, the first fan 61 and the air duct 62 are arranged at the rear side of the base plate A1. Such a structural design has the advantages of reasonable layout and compactness.

[0061] Depend on Figure 8 It can be seen that four air ducts 62 are connected to the first fan 61, of which two air ducts 62 are connected to the left waist and back support pad 3 and the right waist and back support pad 8 respectively. Since the shoulder and back support pad 1 covers the entire shoulder area of ​​the backrest and has a large area, in order to ensure the ventilation effect, the remaining two air ducts 62 are connected to the shoulder and back support pad 1, and these two air ducts 62 are respectively located at both ends of the width direction of the shoulder and back support pad 1. With such a design, the number of air ducts 62 can be connected according to the coverage area and ventilation requirements of different support pads, thereby ensuring that each support pad can obtain sufficient air volume, improving the ventilation performance of the seat, and allowing the user's back to always remain dry and comfortable during the ride.

[0062] Furthermore, if Figure 2 As shown, the base plate A1 is provided with an avoidance hole A12, and the air duct 62 can extend from the rear side to the front side of the base plate A1 through the avoidance hole A12 and communicate with the corresponding support pad. Such a design improves the compactness of the overall structure.

[0063] In this embodiment, the shoulder and back support pad 1, the left waist and back support pad 3 and the right waist and back support pad 8 are detachably connected to the corresponding air duct 62. Such a design has the advantage of convenient replacement and maintenance.

[0064] Please refer to Figure 1, a placement groove 321 is provided on the front side of the left waist and back foam body 32, and the placement groove 321 is used to install a massage component so that the left waist and back support pad 3 has a massage function. In this embodiment, the massage component is a massage air bag, and at least two placement grooves 321 are provided on the left waist and back foam body 32. By reserving the placement groove 321 on the front side of the left waist and back foam body 32, the user can select the left waist and back support pad 3 with a massage function according to the needs. In addition, the massage air bags at different positions can massage different areas of the back. The user can selectively turn on or off different massage air bags according to their own fatigue level and needs to achieve a personalized massage experience.

[0065] In this embodiment, the left waist and back support pad 3, the right waist and back support pad 8 and the shoulder and back support pad 1 are all integrated with a heating component, which is a heating pad that can be installed on the inner side of the corresponding face cover to achieve a backrest heating function.

[0066] refer to Figure 1 The lower back support pad 20 is detachably mounted on the lower front area of ​​the base plate A1, and the lower back support pad 20 can provide comfortable support for the lower back of the user. Figure 3 As shown, the lower end of the lower back support pad 20 has a folded edge 201 extending backwards, and the folded edge 201 can cover the lower end of the base plate A1, playing a role in protecting the base plate A1. The lower back support pad 20 cooperates with the left waist support pad 3 and the shoulder support pad 1 to provide users with more coherent and comprehensive support from the bottom of the lower waist to the back and shoulders, further improving the comfort and safety of riding.

[0067] like Figure 1 As shown, the car seat also includes a seat cushion assembly B, which has a support base B1, a main support module C is detachably installed in the middle area of ​​the upper side of the support base B1, side wing support modules D are detachably installed on both sides of the support base B1, and a front support module E is detachably installed at the front end of the support base B1. Considering this, the main support module C, the side wing support module D and the front support module E can provide support for the user's buttocks, both sides of the thighs and the front of the thighs respectively. The detachable design also has the advantage of easy installation and disassembly. Users can choose support modules of different materials, shapes, softness and hardness to combine according to their own body shape and riding habits, which effectively meets the user's diverse and personalized use needs.

[0068] Further, combined with Fig.11 and Fig.12As shown, both sides of the support base B1 are provided with wing brackets B11 extending upwardly and tilted, and two sets of wing support modules D are respectively mounted on the two sets of wing brackets B11. The two sets of wing support modules D arranged tilted can provide lateral support for the user's hips and legs, thereby improving the user's riding comfort. The front end of the support base B1 is provided with a downwardly recessed groove B12, and the front support module E is mounted in the groove B12. On the one hand, such a structural design can ensure the accuracy of the installation position of the front support module E. On the other hand, the recessed design of the groove B12 can make the front support module E and the support base B1 more compactly connected, thereby enhancing the structural stability.

[0069] Recombination Figure 1 and Fig.11 As shown, the front support module E includes a horizontal section E1 and a bent section E2 located at the front end of the horizontal section, wherein the horizontal section E1 is located in the sink B12, which can ensure the stability of the installation of the front support module E. The bent section E2 covers the front side of the support base plate B1, which can protect the front end of the support base plate B1, and can also provide support for the back of the user's legs, thereby improving the comfort of the user's legs and better meeting the ergonomic requirements.

[0070] Depend on Figure 1 and Fig.11 It can be seen that in this embodiment, a coccyx support module 7 is detachably installed at the rear end of the support base plate B1, which can provide comfortable support for the coccyx area behind the user's buttocks.

[0071] Please refer to Fig.13 and 14 , the main support module C includes a main support plate C1 and a middle foam C2 arranged on the main support plate C1, wherein the main support plate C1 is detachably connected to the support base plate B1. The wing support module D includes a wing support plate D1 and a wing foam D2 arranged on the wing support plate D1, the wing support plate D1 is detachably connected to the support base plate B1, and the two groups of wing support modules D are arranged symmetrically. The front support module E includes a front support plate E3 and a front end foam E4 arranged on the front support plate E3, and the front support plate E3 is detachably connected to the support base plate B1. The above-mentioned support plates and the support base plate B1 can be connected by a hanging method, a fixing method, or a combination of hanging and fixing methods. The specific structure of the hanging method can refer to the structure of the above-mentioned connection structure 9, which will not be repeated here.

[0072] In this embodiment, in the module of the seat cushion assembly B, the foam is sleeved on the circumferential edge of the corresponding support plate in a ring-shaped manner. Such a design improves the convenience of assembly and increases the connection strength.

[0073] Please refer to Figures 12 to 14The bottom of the support base B1 is provided with a second fan 10 installed toward the main support module C. The support base B1 and the main support plate C1 are both provided with air holes b opposite to the second fan 10. The middle foam C2 is provided with air holes a. When the second fan 10 is started, ventilation and heat dissipation can be performed through the air holes a. With this consideration, the ventilation function of the seat cushion is increased to ensure that the seat is always dry and comfortable, further improving the riding comfort of the user.

[0074] In this embodiment, a heating pad is also provided in the main support module C. The heating pad can be arranged on the upper side of the middle foam C2 so that the seat cushion has a heating function, thereby further improving the comfort of the seat.

[0075] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make various similar expressions without violating the purpose and claims of the present invention, and such changes all fall within the scope of protection of the present invention.

Claims

1. A backrest, comprising a backrest assembly (A), characterized in that: The backrest assembly (A) comprises a base plate (A1), a left waist and back support pad (3) is arranged in the front left area of ​​the base plate (A1), a right waist and back support pad (8) is arranged in the front right area, and a shoulder and back support pad (1) is arranged in the front upper part, and the left waist and back support pad (3), the right waist and back support pad (8) and the shoulder and back support pad (1) are all detachably mounted on the base plate (A1).

2. The backrest according to claim 1, characterized in that: There are gaps between the left waist and back support pad (3) and the right waist and back support pad (8), between the left waist and back support pad (3) and the shoulder and back support pad (1), and between the right waist and back support pad (8) and the shoulder and back support pad (1).

3. The backrest according to claim 1, characterized in that: A lower back support pad (20) is detachably mounted on the front lower area of ​​the base plate (A1).

4. The backrest according to claim 1, characterized in that: The left waist and back support pad (3) comprises a left waist and back support plate (31), a left waist and back foam body (32) located on the front side of the left waist and back support plate (31), and a left waist and back cover (33) covering the surface of the left waist and back foam body (32), the circumferential edge of the left waist and back foam body (32) is wrapped around the circumferential edge of the left waist and back support plate (31) so that the two are connected as a whole, and a connecting structure (9) is distributed on the rear side of the left waist and back support plate (31), and the connecting structure (9) is used to be fixedly assembled to the base plate (A1).

5. The backrest according to claim 1, characterized in that: The backrest assembly (A) also includes a metal outer frame (A2), the base plate (A1) is installed on the front side of the metal outer frame (A2), and an exterior cover plate is provided on the rear side of the metal outer frame (A2). A hollow area is formed between the base plate (A1) and the exterior cover plate, and a ventilation system (6) is arranged in the hollow area.

6. The backrest according to claim 5, characterized in that: The ventilation system (6) comprises a first fan (61) and a plurality of air ducts (62), wherein the first fan (61) has an air inlet end and an air outlet end, and each of the air ducts (62) has one end connected to the air inlet end of the first fan (61), and the other end connected to the shoulder and back support pad (1), the left waist and back support pad (3), and the right waist and back support pad (8); or, each of the air ducts (62) has one end connected to the air outlet end of the first fan (61), and the other end connected to the shoulder and back support pad (1), the left waist and back support pad (3), and the right waist and back support pad (8).

7. The backrest according to claim 1, characterized in that: The base plate (A1) is flexible; the inner end of the left waist and back support pad (3) is fixed on the base plate (A1), and the middle part of the left waist and back support pad (3) is connected to the base plate (A1) via a first rotating support assembly (2) so as to be able to deflect forward and backward; when the user's back is pressed against the inner end area of ​​the left waist and back support pad (3), the left waist and back support pad (3) can deflect backward with the first rotating support assembly (2) as a fulcrum, so that the left waist and back support pad (3) forms an embracing support for the user's back; An elastic reset component (4) is provided between the outer end of the left waist and back support pad (3) and the base plate (A1). When the user's back is facing forward and away from the backrest, the elastic reset component (4) is used to reset the left waist and back support pad (3).

8. The backrest according to claim 7, characterized in that: The first rotating support component (2) is a ball joint structure.

9. A car seat, characterized in that: The seat comprises a backrest according to any one of claims 1 to 8.

10. The vehicle seat according to claim 9, characterized in that: The invention also comprises a seat cushion assembly (B), wherein the seat cushion assembly (B) comprises a support base (B1), a main support module (C) is detachably mounted in the middle region of the support base (B1), side wing support modules (D) are detachably mounted on both sides of the support base (B1), and a front support module (E) is detachably mounted at the front end of the support base (B1).

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