Seat back, vehicle seat, and vehicle

Abstract

The application provides a seat backrest, an automobile seat and an automobile. The seat backrest comprises: a fixed support plate, the fixed support plate having a back support area and a waist support area; a waist support plate, the waist support plate having a hinged end and a free end, the hinged end being rotatably installed on the back support area, and the waist support plate extending away from the back support area; and a waist support plate jacking device, the waist support plate jacking device being located between the fixed support plate and the waist support plate; wherein the waist support plate jacking device is configured to jack up the free end of the waist support plate to change the inclination angle of the waist support plate relative to the horizontal plane. The waist support plate of the application can be separated from the backrest foam and support the waist of an occupant under the jacking of the waist support plate jacking device, thereby being beneficial to reduce the fatigue feeling of the waist area of a driver or a passenger.

Description

Technical Field

[0001] This application relates to the field of automotive technology, specifically to a seat back, an automotive seat, and an automotive vehicle. Background Technology

[0002] Currently, with the development of the automotive industry, car seats are required to provide more and more functions, such as seat massage, seat heating, or seat ventilation, to alleviate driver fatigue during long drives. However, most current seats only provide ventilation, heating, and massage functions for the user's back area, failing to provide reliable support for the driver's lumbar region, which can easily lead to excessive fatigue in the driver's lumbar area. Summary of the Invention

[0003] This application provides a car seat and a car, which aims to solve the above-mentioned technical problems.

[0004] In a first aspect, this application provides a seat back, comprising: A fixed support plate, which has a back support area and a waist support area; The lumbar support plate has a hinged end and a free end. The hinged end is rotatably mounted in the lumbar support area, and the lumbar support plate extends in a direction away from the back support area. The lumbar support lifting device is located between the fixed support plate and the lumbar support plate. The lumbar support lifting device is configured to lift the free end of the lumbar support plate to change the tilt angle of the lumbar support plate relative to the horizontal plane.

[0005] In some embodiments, the lumbar support lifting device can flexibly or elastically lift the free end of the lumbar support plate.

[0006] In some embodiments, the lumbar support lifting device includes a lifting air bag, which is filled between the fixed support plate and the lumbar support support plate; or The lumbar support lifting device includes a spring, which is located between the fixed support plate and the lumbar support support plate.

[0007] In some embodiments, the fixed support plate has a through groove that extends through both sides of the fixed support plate; The seat back also includes a massage device located on the side of the fixed support plate away from the human body. The massage device includes a drive mechanism and a massage head. The drive mechanism is used to drive the massage head through the through groove and perform massage movements.

[0008] In some embodiments, the drive mechanism includes a moving component, a fixed component, a connecting rod, and a massage arm, wherein the moving component can move relative to the fixed component in a preset direction; The massage head is mounted on the end of the massage arm, which is rotatably mounted on the fixed component. The first end of the connecting rod is rotatably connected to the massage arm, and the second end of the connecting rod is rotatably connected to the moving component.

[0009] In some embodiments, the fixed support plate is fixedly connected to the fixed component, and the drive mechanism further includes a walking chassis and a walking drive component; The fixed component is movably mounted on the chassis, and the driving component is used to drive the fixed component to move on the chassis.

[0010] In some embodiments, the walking drive assembly includes a first screw, a first nut, and a first motor; The first screw is fixedly installed on the chassis, the first nut cooperates with the first screw, and the first motor is fixedly installed on the fixed assembly; The first motor is used to drive the first nut to rotate, so that the first nut can move on the first screw.

[0011] In some embodiments, the moving component is equipped with a first eccentric shaft and a second motor; The connecting rod is rotatably mounted on the first eccentric shaft, and the second motor is used to drive the first eccentric shaft to rotate, so that the connecting rod drives the massage arm to swing back and forth.

[0012] In some embodiments, the fixing assembly includes a base plate, a second screw, and a third motor, wherein the second screw and the third motor are mounted on the base plate; The moving component is fixed with a second nut, which cooperates with a second screw. The second screw is rotatably mounted on the base plate. A third motor is used to drive the second screw to rotate, thereby driving the second nut to move the moving component.

[0013] Secondly, this application provides an automobile seat, including a seat back as described in the first aspect.

[0014] Thirdly, this application provides an automobile, including the automobile seat described in the second aspect.

[0015] In this embodiment, since the hinged end of the lumbar support plate is rotatably installed in the lumbar support area, and the lumbar support plate extends away from the back support area, after the lumbar support lifting device lifts the free end of the lumbar support plate, the tilt angle of the lumbar support plate relative to the horizontal plane changes, thereby allowing the lumbar support plate to indirectly support the occupant's waist through the backrest foam, which ultimately helps to reduce the fatigue in the lumbar region of the driver and passenger. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0018] Figure 1 A schematic diagram of a seat backrest structure is shown in an embodiment of this application; Figure 2 This paper shows a schematic diagram of a lumbar support plate in one embodiment of the present application; Figure 3 An exploded view of a seat backrest in an embodiment of this application is shown; Figure 4 An exploded view of a drive mechanism in an embodiment of this application is shown; Figure 5 A schematic diagram of a drive mechanism in an embodiment of this application is shown; Figure 6 This illustration shows a schematic diagram of the lumbar support lifting device in a retracted state in an embodiment of this application. Figure 7 This illustration shows a schematic diagram of the lumbar support lifting device in the extended state in an embodiment of this application. Figure 8 This illustration shows a schematic diagram of the lumbar support lifting device in the extended state while the fixed support plate moves upward, according to an embodiment of this application. Figure 9 A schematic diagram of a moving component in an embodiment of this application is shown; Figure 10 A schematic diagram of a fixing component in an embodiment of this application is shown.

[0019] Explanation of reference numerals in the attached figures: 10. Fixed support plate; 101. Back support area; 102. Waist support area; 103. Through groove; 20. Lumbar support plate; 201. Hinge end; 202. Free end; 30. Waist support lifting device; 40. Massage device; 41. Drive mechanism; 411. Moving component; 4111. First eccentric rotating shaft; 4112. Second motor; 4113. Second nut; 412. Fixing component; 4121. Base plate; 4122. Second screw; 4123. Third motor; 413. Connecting rod; 414. Massage arm; 415. Walking chassis; 416. Walking drive component; 4161. First screw; 4162. First nut; 4163. First motor; 42. Massage head. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0021] This application provides a seat back, a car seat, and a car, which will be described in detail below.

[0022] First, refer to Figure 1 , Figure 1 A schematic diagram of a seat backrest in an embodiment of this application is shown, wherein the seat backrest includes a fixed support plate 10, a lumbar support plate 20, and a lumbar support lifting device 30.

[0023] Specifically, the fixed support plate 10 is used to provide fixed support for the back of the driver and passenger. Generally, a backrest foam is installed on the side of the fixed support plate 10 facing the user's back, so as to provide flexible support for the back of the driver and passenger through the backrest foam, thereby improving the user experience. In the embodiments of this application, see... Figure 2 , Figure 2 The diagram shows a structural schematic of a lumbar support plate 20 in an embodiment of this application. The fixed support plate 10 has a back support area 101 and a lumbar support area 102. The back support area 101 is the upper area of ​​the fixed support plate 10, and the lumbar support area 102 is the lower area of ​​the fixed support plate 10, so that the back support area 101 provides a fixed support base for the user's back, and the lumbar support area 102 provides a fixed support base for the user's waist.

[0024] It should be noted that the division of the back support area 101 and the waist support area 102 can be adjusted by those skilled in the art according to actual needs (e.g., fixing the shape of the support plate 10), and this application does not make specific limitations here.

[0025] The lumbar support plate 20 has a hinge end 201 and a free end 202. The hinge end 201 is rotatably mounted on the lumbar support area 102. The lumbar support plate 20 extends away from the back support area 101. After the lumbar support plate 20 rotates clockwise relative to the fixed support plate 10, the position of the hinge end 201 of the lumbar support plate 20 remains unchanged, while the position of the free end 202 of the lumbar support plate 20 changes. The posture of the entire lumbar support plate 20 changes to provide a more fitting lumbar support for the driver and passenger.

[0026] Understandably, in Figure 1 The device is provided with three lumbar support plates 20 arranged at intervals. In fact, it is not limited to this. For example, the three lumbar support plates 20 can be combined into one lumbar support plate 20, or the three lumbar support plates 20 can be divided into more quantities.

[0027] The lumbar support lifting device 30 is located between the fixed support plate 10 and the lumbar support support plate 20. The lumbar support lifting device 30 is configured to lift the free end 202 of the lumbar support support plate 20 to change the tilt angle of the lumbar support support plate 20 relative to the horizontal plane, so that the lumbar support support plate 20 can better support the waist of the driver and passenger.

[0028] In some embodiments of this application, the lumbar support lifting device 30 can flexibly or elastically lift the free end 202 of the lumbar support plate 20. That is, the rotational position of the lumbar support plate 20 relative to the fixed support plate 10 is variable. For the lumbar region of the passenger, not only can the backrest foam of the seat back provide flexible lumbar support, but the lumbar support plate 20 can also provide flexible or elastic support under the action of the lumbar support lifting device 30, thereby further improving the static riding experience of the passenger.

[0029] In some embodiments of this application, such as the embodiment where the lumbar support lifting device 30 can flexibly or elastically lift the free end 202 of the lumbar support plate 20, the lumbar support lifting device 30 includes a lifting air bag filled between the fixed support plate 10 and the lumbar support plate 20. When the lumbar support plate 20 is subjected to a counterclockwise force, the lifting air bag undergoes flexible deformation, thereby flexibly lifting the lumbar support plate 20. Thus, the lumbar support plate 20 supports the waist of the driver and passenger in a flexible support manner, ultimately improving the static riding experience of the driver and passenger.

[0030] In some embodiments of this application, such as the embodiment where the lumbar support lifting device 30 can flexibly or elastically lift the free end 202 of the lumbar support plate 20, the lumbar support lifting device 30 includes a spring located between the fixed support plate 10 and the lumbar support plate 20. Similarly, when the lumbar support plate 20 is subjected to a counterclockwise force, the spring undergoes elastic deformation, thereby elastically lifting the lumbar support plate 20. Thus, the lumbar support plate 20 supports the waist of the driver and passenger in an elastic support manner, ultimately improving the static riding experience of the driver and passenger.

[0031] In this embodiment, since the hinge end 201 of the lumbar support plate 20 is rotatably mounted on the lumbar support area 102, and the lumbar support plate 20 extends away from the back support area 101, after the lumbar support lifting device 30 lifts the free end 202 of the lumbar support plate 20, the tilt angle of the lumbar support plate 20 relative to the horizontal plane changes, thereby allowing the lumbar support plate 20 to indirectly support the occupant's waist through the backrest foam, which ultimately helps to reduce the fatigue in the lumbar region of the driver and passenger.

[0032] In some embodiments of this application, see Figure 3 , Figure 3 An exploded view of a seat backrest in an embodiment of this application is shown, wherein a fixed support plate 10 has a through groove 103 extending through both sides of the fixed support plate 10; the seat backrest also includes a massage device 40, which is located on the side of the fixed support plate 10 away from the human body. The massage device 40 includes a drive mechanism 41 and a massage head 42. The drive mechanism 41 can drive the massage head 42 through the through groove 103 to perform massage movements.

[0033] For example, the massage head 42 can pass through the through groove 103 and repeatedly contact the back of the human body in a manner similar to tapping or pressing to achieve a pressing or tapping massage process on the back of the human body; for another example, the massage head 42 can pass through the through groove 103 and move on the back of the human body in a manner similar to left and right movement to achieve a kneading massage process on the back of the human body; for yet another example, the massage head 42 can pass through the through groove 103 and perform tapping, pressing or kneading movements while moving to achieve a walking-style tapping, pressing or kneading movement, thereby performing tapping, pressing or kneading massage on different parts of the back of the human body.

[0034] As an exemplary embodiment, see Figure 4 , Figure 4An exploded view of a drive mechanism 41 in an embodiment of this application is shown. The drive mechanism 41 includes a moving component 411, a fixed component 412, a connecting rod 413, and a massage arm 414. The moving component 411 can move relative to the fixed component 412 in a preset direction. The massage head 42 is mounted on the end of the massage arm 414, and the massage arm 414 is rotatably mounted on the fixed component 412. The first end of the connecting rod 413 is rotatably connected to the massage arm 414, and the second end of the connecting rod 413 is rotatably connected to the moving component 411.

[0035] It should be noted that the moving component 411, the fixed component 412, the connecting rod 413, and the massage arm 414 constitute a crank-slider motion mechanism. When the moving component 411 moves away from the fixed component 412, the moving component 411 drives the first end of the connecting rod 413 away from the fixed component 412, and the connecting rod 413 can pull the massage arm 414 to rotate counterclockwise, thereby allowing the massage arm 414 to be lowered. When the moving component 411 moves closer to the fixed component 412, the moving component 411 drives the first end of the connecting rod 413 to move, and the connecting rod 413 can pull the massage arm 414 to rotate clockwise, thereby allowing the massage arm 414 to be raised. On the one hand, the massage can be achieved by utilizing the above-mentioned movement process of the massage arm 414, and on the other hand, the entire motion mechanism can be hidden in the fixed support plate 10 on the side away from the human body by using the massage arm 414 to be lowered.

[0036] In some embodiments of this application, see Figure 5 , Figure 5 A schematic diagram of a drive mechanism 41 in an embodiment of this application is shown. The fixed support plate 10 is fixedly connected to the fixed component 412. The drive mechanism 41 also includes a walking chassis 415 and a walking drive component 416. The fixed component 412 is movably mounted on the walking chassis 415, and the walking drive component 416 is used to drive the fixed component 412 to move on the walking chassis 415. It should be noted that when the fixed component 412 moves on the walking chassis 415, since the fixed support plate 10 is fixedly connected to the fixed component 412, the fixed support plate 10 will also move with the fixed component 412. This allows the position of the lumbar support plate 20 on the fixed support plate 10 to be adjusted so that the lumbar support plate 20 can better track the waist of the driver and passenger and improve the static riding experience of the driver and passenger.

[0037] As an exemplary embodiment, see further. Figure 5The walking drive assembly 416 includes a first screw 4161, a first nut 4162, and a first motor 4163. The first screw 4161 is fixedly installed on the walking chassis 415, the first nut 4162 cooperates with the first screw 4161, and the first motor 4163 is fixedly installed on the fixing assembly 412. The first motor 4163 is used to drive the first nut 4162 to rotate, so that the first nut 4162 moves on the first screw 4161, thereby allowing the fixing assembly 412 and the fixing support plate 10 fixed on the fixing assembly 412 to move with the first nut 4162, ultimately realizing the position adjustment process of the waist support plate 20 on the fixing support plate 10.

[0038] In some embodiments of this application, see Figure 6 , Figure 7 and Figure 8 Under the dual action of the walking drive assembly 416 and the lumbar support lifting device 30, the lumbar support plate 20 has an adjustment range in at least four directions. That is, under the action of the lumbar support lifting device 30, the lumbar support plate 20 can be adjusted in the front and rear directions, and under the action of the walking drive assembly 416, the lumbar support plate 20 can be adjusted in the up and down directions, thereby making the lumbar support plate 20 more adaptable and more practical.

[0039] It is understood that the implementation of the walking drive assembly 416 is not limited to this. For example, the walking drive assembly 416 may also adopt a linear motion mechanism such as a hydraulic telescopic rod, a pneumatic telescopic rod, or a gear and rack.

[0040] In some embodiments of this application, see Figure 9 , Figure 9 A schematic diagram of a movable component 411 in an embodiment of this application is shown. The movable component 411 is equipped with a first eccentric rotating shaft 4111 and a second motor 4112. A connecting rod 413 is rotatably mounted on the first eccentric rotating shaft 4111. The second motor 4112 drives the first eccentric rotating shaft 4111 to rotate, so that the connecting rod 413 drives the massage arm 414 to swing back and forth. It should be noted that when the second motor 4112 drives the first eccentric rotating shaft 4111 to rotate, the end of the connecting rod 413 connected to the first eccentric rotating shaft 4111 will rotate around the eccentric axis of the first eccentric rotating shaft 4111. Under the drive of the connecting rod 413, the massage arm 414 will swing back and forth, which can make the massage head 42 at the end of the massage arm 414 produce a massage motion similar to tapping or kneading, so as to realize the kneading massage process of the human back.

[0041] In some embodiments of this application, see Figure 10 , Figure 10A schematic diagram of a fixing component 412 in an embodiment of this application is shown. The fixing component 412 includes a base plate 4121, a second screw 4122, and a third motor 4123. The second screw 4122 and the third motor 4123 are mounted on the base plate 4121. A second nut 4113 is fixed to the moving component 411. The second nut 4113 cooperates with the second screw 4122. The second screw 4122 is rotatably mounted on the base plate 4121. The third motor 4123 is used to drive the second screw 4122 to rotate, thereby driving the second nut 4113 to move the moving component 411.

[0042] It should be noted that when the third motor 4123 drives the second screw 4122 to rotate, the second nut 4113 converts the rotational motion of the second screw 4122 into linear motion, thereby causing the second nut 4113 to move the moving component 411 closer to or away from the fixed component 412. When the moving component 411 approaches the third motor 4123, the connecting rod 413 drives the massage arm 414 to rise, so that the massage head 42 at the end of the massage arm 414 can rise to perform massage; when the moving component 411 moves away from the third motor 4123, the connecting rod 413 drives the massage arm 414 to fall down, so that the massage head 42 at the end of the massage arm 414 can fall down and be hidden, avoiding the foreign object sensation provided to the driver and passengers by the massage head 42 at the end of the massage arm 414 when massage is not needed.

[0043] It is worth noting that the above description of the seat back is intended to clearly illustrate the implementation and verification process of this application. Those skilled in the art can make equivalent design modifications under the guidance of this application. For example, the fixed component 412 may include a hydraulic telescopic rod or a pneumatic telescopic rod, which drives the moving component 411 to move relative to the fixed component 412.

[0044] Furthermore, to better implement the seat backrest in the embodiments of this application, this application also provides a car seat based on the seat backrest, the car seat including the seat backrest of the above embodiments. Since the car seat in the embodiments of this application has all the beneficial effects of the car seat described above, it will not be repeated here.

[0045] Furthermore, to better implement the car seat in the embodiments of this application, this application also provides a car, which includes the car seat of the above embodiments. Exemplarily, the car may be, but is not limited to, a gasoline-powered car, a pure electric car, a hybrid electric car, a plug-in hybrid electric car, a range-extended electric car, and a fuel cell car. Since the car seat in the embodiments of this application has all the beneficial effects of the seat backrest described in the above embodiments, these effects will not be repeated here.

[0046] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the detailed descriptions of other embodiments above, which will not be repeated here.

[0047] The basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0048] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0049] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments of the utility model, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the present application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0050] The above provides a detailed description of a seat back, a car seat, and a car provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A seat back, characterized by, include: A fixed support plate, the fixed support plate having a back support area and a waist support area; A lumbar support plate having a hinged end and a free end, the hinged end being rotatably mounted on the lumbar support area, and the lumbar support plate extending in a direction away from the back support area; A lumbar support lifting device is located between the fixed support plate and the lumbar support support plate; The lumbar support lifting device is configured to lift the free end of the lumbar support plate to change the tilt angle of the lumbar support plate relative to the horizontal plane.

2. The seat back of claim 1, wherein The lumbar support lifting device can flexibly or elastically lift the free end of the lumbar support plate.

3. The seat back of claim 2, wherein The lumbar support lifting device includes a lifting air bag, which fills the space between the fixed support plate and the lumbar support support plate; or The lumbar support lifting device includes a spring, which is located between the fixed support plate and the lumbar support plate.

4. The seat back of claim 1, wherein The fixed support plate has a through groove that runs through both sides of the fixed support plate; The seat back also includes a massage device located on the side of the fixed support plate away from the human body. The massage device includes a drive mechanism and a massage head. The drive mechanism is used to drive the massage head through the through groove and perform massage movements.

5. The seat back of claim 4, wherein The drive mechanism includes a moving component, a fixed component, a connecting rod, and a massage arm. The moving component can move relative to the fixed component in a preset direction. The massage head is mounted on the end of the massage arm, the massage arm is rotatably mounted on the fixed assembly, the first end of the connecting rod is rotatably connected to the massage arm, and the second end of the connecting rod is rotatably connected to the moving assembly.

6. The seat back as described in claim 5, characterized in that, The fixed support plate is fixedly connected to the fixed component, and the drive mechanism also includes a walking chassis and a walking drive component; The fixed component is movably mounted on the chassis, and the driving component is used to drive the fixed component to move on the chassis.

7. The seat back of claim 6, wherein The walking drive assembly includes a first screw, a first nut, and a first motor; The first screw is fixedly installed on the walking chassis, the first nut cooperates with the first screw, and the first motor is fixedly installed on the fixing assembly; The first motor is used to drive the first nut to rotate, so that the first nut moves on the first screw.

8. The seat back of claim 5, wherein, The moving component is equipped with a first eccentric rotating shaft and a second motor; The connecting rod is rotatably mounted on the first eccentric shaft, and the second motor is used to drive the first eccentric shaft to rotate, so that the connecting rod drives the massage arm to swing back and forth.

9. The seat back of claim 5, wherein The fixing assembly includes a base plate, a second screw, and a third motor, wherein the second screw and the third motor are mounted on the base plate; The moving component is fixed with a second nut, which cooperates with a second screw. The second screw is rotatably mounted on the substrate. The third motor is used to drive the second screw to rotate, thereby driving the second nut to move the moving component.

10. An automotive seat characterized by comprising: Includes the seat back as described in any one of claims 1 to 9.

11. An automobile characterized by comprising: The automobile seat according to claim 10 is included.

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