Seat with adjustable backrest height and vehicle

Abstract

The present application discloses a seat with an adjustable backrest height and a vehicle, which solves the technical problem that the height of the backrest of the prior art automobile seat cannot be adjusted. The seat with an adjustable backrest height includes a seat cushion, an upper backrest cushion and a filling backrest cushion. The upper backrest cushion slides with the seat cushion. The filling backrest cushion is installed between the seat cushion and the upper backrest cushion. When the upper backrest cushion slides relative to the seat cushion, the upper and lower ends of the filling backrest cushion always abut against the upper backrest cushion and the seat cushion. The seat with an adjustable backrest height disclosed in the present application can adjust the overall height of the seat by moving the upper backrest cushion, and by arranging the filling backrest cushion between the seat cushion and the upper backrest cushion, when the position of the upper backrest cushion and the seat cushion changes, the filling backrest cushion can always fill the gap between the upper backrest cushion and the seat cushion, thereby ensuring a good user experience.

Description

Technical Field

[0001] The present application belongs to the technical field of automobile seats, and in particular relates to a seat with adjustable backrest height and a vehicle. Background Art

[0002] With the development of electrification, intelligence and networking of automobiles, the structural form and function of automobile seats in the current automobile industry have undergone tremendous changes. Consumers have higher and more diversified demands for automobile safety, in-car riding comfort and car usage scenarios. The number of adjustment directions of automobile seats has evolved from the earliest four-way (seat front and rear adjustment, backrest front and rear adjustment) manual seats to the mature and widely used eight-way (seat front and rear adjustment, backrest front and rear adjustment, seat cushion height adjustment and seat front end up and down adjustment) electric adjustment. The comfort of seats is getting higher and higher, and the scenarios that can be realized are becoming more and more abundant.

[0003] The height of the car seats currently on the market cannot be adjusted, which brings many inconveniences to users. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides a seat with adjustable backrest height and a vehicle.

[0005] The technical solution adopted to achieve the purpose of this application is that, in the first aspect of this application, the present invention discloses a seat with adjustable backrest height, comprising:

[0006] cushion;

[0007] an upper backrest cushion, slidably engaged with the seat cushion;

[0008] a filling back cushion installed between the seat cushion and the upper back cushion;

[0009] Wherein, when the upper backrest pad slides relative to the seat cushion, the upper and lower ends of the filling backrest pad always abut against the upper backrest pad and the seat cushion.

[0010] In some embodiments, the padded back cushion comprises:

[0011] A first sliding member, mounted on the seat cushion;

[0012] A second sliding member is mounted on the upper backrest cushion, and the second sliding member is slidably matched with the first sliding member;

[0013] a spring member, two ends of which act on the first sliding member and the second sliding member respectively, and the spring member is used to drive the first sliding member and the second sliding member to move closer to each other; and

[0014] The foam sleeve is sleeved outside the first sliding member and the second sliding member.

[0015] In some embodiments, a plurality of first support bars are disposed on a side of the first sliding member facing the second sliding member, and the plurality of first support bars are spaced apart along a width direction of the first sliding member, and a first limiting groove is formed between two adjacent first support bars;

[0016] A plurality of second support bars are arranged on one side of the second sliding member facing the first sliding member, and the plurality of second support bars are arranged at intervals along the width direction of the second sliding member, and a second limiting groove is formed between two adjacent second support bars;

[0017] The second support bar is staggered with the first support bar, the second support bar is inserted into the first limiting groove, and the first support bar is inserted into the second limiting groove.

[0018] In some embodiments, a regulation system is further included, which includes a control module and a regulation module. The control module is electrically connected to the regulation module. The output end of the regulation module acts on the upper back cushion, and can drive the upper back cushion to move when the regulation module is working.

[0019] In some embodiments, the control system also includes a setting module, a memory module and a calling module, the adjustment module is also used to generate a position signal of the upper back cushion, the setting module is connected to the adjustment module to set the position signal of the upper back cushion according to the position signal, the memory module is connected to the setting module and the adjustment module respectively, the memory module memorizes the position signal according to the position signal, the calling module is connected to the memory module and the setting module respectively, the calling module retrieves the position signal through the setting module and sends the position signal to the memory module, and the memory module controls the adjustment module according to the position signal to adjust the upper back cushion to return to the corresponding upper back cushion position.

[0020] In some embodiments, the adjustment module includes:

[0021] A mounting box mounted on the upper backrest cushion;

[0022] A slide rail screw, wherein the first end of the slide rail screw is rotationally matched with the mounting box, the second end of the slide rail screw is rotationally matched with the upper backrest pad, and the slide rail screw is threadedly matched with the seat cushion.

[0023] In some embodiments, the adjustment module further includes:

[0024] a height adjustment motor mounted on the upper backrest cushion;

[0025] The motor flexible shaft is drivingly connected to the height adjustment motor, and the motor flexible shaft cooperates with the guide rail screw through a worm gear.

[0026] In some embodiments, a fixing block and a slide rail ball retainer are provided on the seat cushion, a plurality of balls are provided in the slide rail ball retainer, the mounting box is slidably matched with the balls, and the slide rail lead screw is threadedly matched with the fixing block.

[0027] In some embodiments, it also includes a frame assembly and a lower backrest pad, the frame assembly includes a cushion frame, a fixed frame and a sliding frame, the fixed frame is installed on the cushion frame, and the sliding frame is slidably connected to the fixed frame; the cushion is installed on the cushion frame, the lower backrest pad is installed on the fixed frame, and the upper backrest pad is installed on the sliding frame.

[0028] The technical solution adopted to achieve the purpose of this application is that, in the second aspect of this application, the present invention also discloses a vehicle, which includes a body and a seat with an adjustable backrest height according to any embodiment of the first aspect above, and the seat with an adjustable backrest height is installed on the body.

[0029] It can be seen from the above technical solution that the seat with adjustable backrest height disclosed in the present application can adjust the overall height of the seat by moving the upper backrest cushion, and by arranging a filling backrest cushion between the seat cushion and the upper backrest cushion, when the position of the upper backrest cushion and the seat cushion changes, the filling backrest cushion can always fill the gap between the upper backrest cushion and the seat cushion, thereby ensuring a good user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of a seat with an adjustable backrest height in an embodiment of the present application at a first height;

[0031] Figure 2 It is a schematic diagram of a seat with adjustable backrest height in an embodiment of the present application at a second height;

[0032] Figure 3 An exploded schematic diagram of a seat with adjustable backrest height in an embodiment of the present application;

[0033] Figure 4 This is a schematic diagram of a filled backrest cushion in an embodiment of the present application;

[0034] Figure 5 This is an exploded schematic diagram of a filled backrest cushion in an embodiment of the present application;

[0035] Figure 6 This is a schematic diagram of the skeleton assembly in the embodiment of the present application;

[0036] Figure 7This is an exploded schematic diagram of the skeleton assembly in the embodiment of the present application;

[0037] Figure 8 This is a schematic diagram of a sliding skeleton in an embodiment of the present application;

[0038] Fig. 9 A schematic diagram of a guide rail and a guide screw in an embodiment of the present application;

[0039] Fig.10 This is a schematic diagram of a fixed frame in an embodiment of the present application;

[0040] Fig.11 This is a schematic diagram of a vehicle in a first state according to an embodiment of the present application;

[0041] Fig.12 This is a schematic diagram of a vehicle in a second state according to an embodiment of the present application.

[0042] Description of reference numerals:

[0043] 1000 - seat with adjustable backrest height, 2000 - body;

[0044] 100-seat cushion, 200-lower back cushion, 300-filled back cushion, 310-foam cover, 320-second sliding member, 321-second support bar, 322-second limiting groove, 330-first sliding member, 331-first support bar, 332-first limiting groove, 400-upper back cushion, 500-headrest assembly, 600-seat cushion outer guard plate, 700-skeleton assembly, 710-seat cushion slide rail, 720-seat cushion frame, 730-fixed frame, 731-slide rail ball retainer, 732-ball, 733-fixed block, 734-backrest rotation motor, 735-motor synchronization rod, 736-backrest angle adjuster, 740-sliding frame, 741-height adjustment motor, 742-motor flexible shaft, 743-installation box, 744-slide rail screw, 750-wiring harness assembly. DETAILED DESCRIPTION

[0045] In order to make the technical personnel in the technical field to which the present application belongs to understand the present application more clearly, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0046] In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides various specific examples of processes and materials, but those of ordinary skill in the art may recognize the application of other processes and / or the use of other materials.

[0047] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0048] There are the following pain points in the use of car seats with non-adjustable height: 1. Since the height of the car seat is too high after the headrest is added, the car seat cannot be directly assembled to the car body through the car door opening during the car assembly process. Therefore, most car seats require the car seat headrest to be removed and then assembled to the car seat in the car after the car seat is assembled, which increases the assembly man-hours: 2. Since the height of the car seat back is fixed, during the daily use of the car seat, shorter drivers and passengers cannot rest their heads on the headrest even if the headrest is adjusted to the lowest position, which makes the ride uncomfortable. Moreover, if they cannot rest their heads on the headrest, the headrest cannot protect them in the event of a rear-end collision. 1. The height of the car seat back is fixed, so in order to realize the comfortable lying mode of the backrest being folded back into a bed, the wheelbase of the car must be large enough, otherwise the car seat backrest will interfere with the rear seat and cannot be laid flat. Therefore, it is difficult to realize this function for small and medium-sized wheelbase cars; 2. In executive business MPVs and sedans, the co-pilot is generally not occupied, and the boss generally sits behind the front co-pilot. The height of the front seat back affects the front view of the rear passengers; 3. Since the height of the car seat back is fixed and is longer than the seat cushion, when the backrest is folded forward, the backrest will extend beyond the seat cushion, affecting the size of the space after the car is folded forward.

[0049] The embodiment of the present invention discloses a seat with adjustable backrest height and a vehicle, which can solve the technical problem that the height of the backrest of the prior art automobile seat cannot be adjusted, so that the seat is more compatible with the vehicle and the user can have a better experience.

[0050] The technical solution of the present application is described in detail below through specific embodiments:

[0051] See also Figure 1 , Figure 2 and Figure 3In the first embodiment of the present application, a seat 1000 with an adjustable backrest height is provided, which includes a seat cushion 100, an upper back cushion 400, and a filling back cushion 300. The upper back cushion 400 is slidably matched with the seat cushion 100. The filling back cushion 300 is installed between the seat cushion 100 and the upper back cushion 400. When the upper back cushion 400 slides relative to the seat cushion 100, the upper and lower ends of the filling back cushion 300 always abut against the upper back cushion 400 and the seat cushion 100.

[0052] In one embodiment, the padded backrest cushion 300 includes a first sliding member 330, a second sliding member 320, a spring member, and a foam cover 310. The first sliding member 330 is mounted on the seat cushion 100. The second sliding member 320 is mounted on the upper backrest cushion 400, and the second sliding member 320 is slidably matched with the first sliding member 330. The two ends of the spring member act on the first sliding member 330 and the second sliding member 320 respectively, and the spring member is used to drive the first sliding member 330 and the second sliding member 320 to approach each other. The foam cover 310 is sleeved outside the first sliding member 330 and the second sliding member 320.

[0053] When the upper back cushion 400 moves upward, the second sliding member 320 also moves upward under the action of the spring member, but during this process the second sliding member 320 and the first sliding member 330 always remain connected, thereby ensuring that a recessed gap is left between the upper back cushion 400 and the seat cushion 100, thereby achieving the purpose of improving user experience.

[0054] The foam cover 310 has certain stretchability and contractibility, and can be elastically deformed according to the distance between the upper back cushion 400 and the seat cushion 100 , so as to keep the appearance of the filled back cushion 300 always intact.

[0055] See also Figure 3 , Figure 4 and Figure 5 In one embodiment, a plurality of first support bars 331 are provided on one side of the first sliding member 330 facing the second sliding member 320. The plurality of first support bars 331 are arranged at intervals along the width direction of the first sliding member 330, and a first limiting groove 332 is formed between two adjacent first support bars 331. A plurality of second support bars 321 are provided on one side of the second sliding member 320 facing the first sliding member 330. The plurality of second support bars 321 are arranged at intervals along the width direction of the second sliding member 320, and a second limiting groove 322 is formed between two adjacent second support bars 321. The second support bars 321 are staggered with the first support bars 331, and the second support bars 321 are inserted into the first limiting groove 332. The first support bars 331 are inserted into the second limiting groove 322, and the first support bars 331 and the second support bars 321 jointly form a supporting surface.

[0056] When the second sliding member 320 moves relative to the first sliding member 330 , the first support bar 331 and the second support bar 321 can always cooperate with each other to form a support surface for supporting the back of the user.

[0057] Among them, by reducing the width of the first support bar 331 and the second support bar 321 and increasing the number of the first support bar 331 and the second support bar 321, a relatively complete support surface can be formed between each first support bar 331 or each second support bar 321. With the cushioning of the external foam cover 310, the user will not feel uncomfortable even if he leans directly on the first support bar 331 or the second support bar 321.

[0058] In one embodiment, the first sliding member 330 and the second sliding member 320 can be directly connected by a plurality of spring members, and the plurality of spring members can be configured as springs in a compressed state, and the springs are sequentially arranged along the width direction of the first sliding member 330. When the plurality of spring members are arranged in a row between the first sliding member 330 and the second sliding member 320, a certain supporting force can be formed by using the spring members. In addition, since the spring members are elastic, the user can lean on them more softly.

[0059] In one embodiment, the backrest pad 300 only includes two foam pads arranged opposite to each other. The two foam pads are connected to the seat cushion 100 and the upper backrest pad 400 respectively, and the width of the opposite ends of the foam pads can be set smaller to ensure that when the two foam pads are squeezed against each other, their shapes change to extend toward the side, thereby avoiding the formation of a bulge directly on the back of the seat 1000.

[0060] In one embodiment, the backrest pad 300 may include a foam pad, the two ends of which are respectively connected to the seat cushion 100 and the upper backrest pad 400, and the width of the foam pad gradually decreases from the ends toward the middle thereof. This can also ensure that when the upper backrest pad 400 approaches the seat cushion 100, the foam pad can be squeezed and deformed to extend sideways, thereby avoiding a bulge directly generated on the back of the seat 1000.

[0061] In one embodiment, the seat 1000 with adjustable backrest height further includes a control system. The control system includes a control module and an adjustment module. The control module is electrically connected to the adjustment module, and the output end of the adjustment module acts on the upper backrest pad 400, and can drive the upper backrest pad 400 to move when the adjustment module is working. The control module can be used as a control component, and the adjustment module can be used as an execution component. The user can directly control the adjustment module through the control module, thereby achieving the purpose of adjusting the height of the seat 1000.

[0062] In one embodiment, the control system also includes a setting module, a memory module and a calling module. The adjustment module is also used to generate a position signal of the sliding skeleton 740. The setting module is connected to the adjustment module to set the position signal of the sliding skeleton 740 according to the position signal. The memory module is connected to the setting module and the adjustment module respectively. The memory module memorizes the position signal according to the position signal. The calling module is connected to the memory module and the setting module respectively. The calling module retrieves the position signal through the setting module and sends the position signal to the memory module. The memory module controls the adjustment module according to the position signal to adjust the sliding skeleton 740 to restore to the corresponding sliding skeleton 740 position.

[0063] Among them, both the setting module and the calling module can be integrated into the vehicle audio and video system, the position signal of the sliding frame 740 can be seen in the vehicle audio and video system, and the user can also save the position signal according to the setting selection.

[0064] The specific operation method is as follows: The control method of the seat 1000 with adjustable backrest height disclosed in this embodiment includes two strategies: seat position memory setting and seat memory position call. When the user sits on the seat 1000 with adjustable backrest height disclosed in this application for the first time, the height position of the sliding frame 740 can be adjusted through the control module, thereby changing the overall height of the seat 1000 with adjustable backrest height to make the user more comfortable. After the user obtains a comfortable height, the adjustment module will record the position signal of the sliding frame 740 at this time, and the user can save this position signal of the sliding frame 740, which is the seat position memory setting. Normally, a frequent user of the vehicle can save the position signal, so that after the vehicle is handled by other people, the frequent user can quickly adjust the seat 1000 to a height suitable for himself through the position signal, which is the seat memory position call.

[0065] Of course, this situation is applied to the case where the adjustment module only records one position signal. In other embodiments, the adjustment module can save multiple position signals at the same time. In this case, multiple position signals can be marked or numbered so that different users can quickly adjust the seat 1000 to a height suitable for themselves. This situation is mainly applied to family vehicles. Since the frequency of use of family vehicles by couples is similar, and the body shapes of the couples are generally different, the rapid adjustment of the seat height can enhance the user experience.

[0066] The specific actions of the control system are as follows: the first user drives the adjustment module to work through the control module, and the adjustment module drives the Huadong skeleton to move. After the sliding skeleton 740 moves to a suitable position, the setting module records the position signal of the position. At this time, the first user can memorize the position signal through the memory module and display it on the calling module or directly save it on a button or key of the calling module. When the second user adjusts the height of the seat 1000, when the first user uses it again, he can directly press a button or key to call the position signal recorded by the memory module. At this time, the control module will control the adjustment module to directly restore the sliding skeleton 740 to the corresponding position that generates the position signal.

[0067] Of course, integrating both the setting module and the calling module into the vehicle audio and video system is only one implementation in the embodiment. In other implementations, it is also possible to set up a separate display screen (with processing) or a control console for integrating the setting module and the calling module. In this case, the user can adjust the position of the sliding frame 740 on the separate display screen or the control console.

[0068] Among them, the structural components and technologies related to position memory and position reading are already very mature technologies, and this embodiment does not propose improvements to the structural components and technologies related to position memory and position reading themselves. Therefore, this embodiment will no longer further explain the structure and working principle of the structural components and technologies related to position memory and position reading, and the structural components related to position memory and position reading can be directly purchased on the market for use.

[0069] See also Figure 8 and Fig. 9 In one embodiment, the adjustment module includes a mounting box 743 and a guide screw 744. The mounting box 743 is mounted on the upper backrest pad 400. The first end of the guide screw 744 is rotationally matched with the mounting box 743, the second end of the guide screw 744 is rotationally matched with the upper backrest pad 400, and the guide screw 744 is threadedly matched with the seat cushion 100. When the guide screw 744 rotates relative to the seat cushion 100, it also drives the upper backrest pad 400 to move along the axis of the guide screw 744, thereby achieving the purpose of adjusting the seat height.

[0070] In one embodiment, the adjustment module further includes a height adjustment motor 741 and a motor flexible shaft 742. The height adjustment motor 741 is installed on the upper backrest pad 400. The motor flexible shaft 742 is transmission-connected to the height adjustment motor 741, and the motor flexible shaft 742 cooperates with the guide rail screw 744 through a worm gear. The height adjustment motor 741 can be installed in the middle position of the upper side pad, and the guide rail screws 744 are respectively arranged on both sides of the upper backrest pad 400. The two guide rail screws 744 are synchronously driven by the motor flexible shaft 742, thereby ensuring the stability of the movement of the upper backrest pad 400 so that the seat 1000 as a whole will not be offset.

[0071] In one embodiment, a fixing block 733 and a slide rail ball holder 731 are provided on the seat cushion 100. A plurality of balls 732 are provided in the slide rail ball holder 731, the mounting box 743 is slidably matched with the balls 732, and the slide rail lead screw 744 is threadedly matched with the fixing block 733. The matching of the balls 732 and the mounting box 743 can reduce friction, thereby reducing wear and extending the service life.

[0072] Of course, adjusting the position of the upper back cushion 400 by driving the lead screw through the height adjustment motor 741 is only one implementation method in this embodiment. In other implementation methods, the position of the upper back cushion 400 may also be driven by a structure such as a cylinder.

[0073] See also Figure 6 and Figure 7 In one embodiment, the seat 1000 with adjustable backrest height further includes a frame assembly 700 and a lower backrest cushion 200. The frame assembly 700 includes a seat cushion 100 frame, a fixed frame 730, and a sliding frame 740. The fixed frame 730 is mounted on the seat cushion 100 frame, and the sliding frame 740 is slidably connected to the fixed frame 730. The seat cushion 100 is mounted on the lower backrest cushion 200 of the seat cushion 100 frame, mounted on the fixed frame 730, and the upper backrest cushion 400 is mounted on the sliding frame 740.

[0074] The setting of the skeleton assembly 700 can make the seat more stable as a whole. The lower back cushion 200 is connected to the seat, and its position is just at the waist. Its shape can be specially made to better fit the human body. The setting of the lower back cushion 200 makes it possible to adjust the position. When the user sits on the seat 1000, there is generally a part that does not contact the seat 1000 or does not generate a large extrusion force with the seat 1000. It can be considered to set the filling back cushion 300 at this position. On the one hand, due to the small extrusion force, the filling back cushion 300 with relatively small stability is less damaged and can ensure a longer service life. On the other hand, due to its stretchability, the filling back cushion 300 is slightly less comfortable than the upper back cushion 400. Concentrating the main force-bearing part of the human body on the upper back cushion 400 can also enhance the user experience.

[0075] Through the above embodiments, the present application has the following beneficial effects or advantages: the seat 1000 with adjustable backrest height disclosed in the present application can adjust the overall height of the seat by moving the upper backrest cushion 4000, and has at least the following advantages: 1. The height of the backrest of the automobile seat is electrically adjustable, and the backrest can be adjusted to the lowest position when the automobile seat is installed on the vehicle. The automobile seat can be assembled to the vehicle body with the headrest in the final assembly workshop, which reduces the assembly time and improves the production efficiency of the vehicle;

[0076] 2. The height of the car seat backrest is electrically adjustable. For smaller passengers, the height of the headrest can be adjusted to lower the headrest to support the head, thus improving safety and riding comfort.

[0077] 3. The height of the car seat backrest is electrically adjustable. By lowering the height of the backrest, the backrest can be folded back and laid flat for small and medium wheelbase cars to form a comfortable lying mode, which improves the comfort of the car and the utilization of the space inside the car;

[0078] 4. The height of the car seat backrest is electrically adjustable. By lowering the height of the backrest, the passenger sitting in the boss seat behind the co-pilot has a wide forward field of vision, which improves the comfort of the passenger;

[0079] 5. The height of the car seat backrest is electrically adjustable. By lowering the height of the backrest, the backrest can be folded forward without exceeding the length of the seat cushion. The seat can be better stored, which increases the space after the car is folded forward and increases the use scenarios of the car.

[0080] 6. By arranging the filling back pad 300 between the seat cushion 100 and the upper back pad 400, when the positions of the upper back pad 400 and the seat cushion 100 change, the filling back pad 300 can always fill the gap between the upper back pad 400 and the seat cushion 100, thereby ensuring a good user experience.

[0081] See also Figure 3 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 In one embodiment, a seat 1000 with adjustable backrest height includes a frame assembly 700, a seat cushion 100, an upper backrest cushion 400, a lower backrest cushion 200, a padded backrest cushion 300, a headrest assembly 500, an outer guard plate of the seat cushion 100, and a control system.

[0082] The frame assembly 700 includes a seat cushion 100 frame, a fixed frame 730, a sliding frame 740 and a seat cushion 100 slide rail. The seat cushion 100 frame and the seat cushion 100 slide rail are slidably matched. The fixed frame 730 is installed on the seat cushion 100 frame, and the fixed frame 730 is rotatably connected to the seat cushion 100 frame. The sliding frame 740 is slidably connected to the fixed frame 730. The seat cushion 100 is installed on the seat cushion 100 frame, the lower backrest pad 200 is installed on the fixed frame 730, the upper backrest pad 400 is installed on the sliding frame 740, the filling backrest pad 300 is installed between the upper backrest pad 400 and the lower backrest pad 200, and the outer guard plate of the seat cushion 100 is installed on the outer side of the seat cushion 100 frame.

[0083] The headrest assembly 500 is slidably connected to the sliding frame 740. The headrest assembly 500 can move up and down relative to the sliding frame 740. By adjusting the position of the headrest, the user can get a better experience.

[0084] The adjustment system includes an adjustment module, which includes an installation box 743, a slide rail screw 744, a height adjustment motor 741 and a motor flexible shaft 742. A fixed block 733 and a slide rail ball holder 731 are provided on the seat cushion 100, and a plurality of balls 732 are provided in the slide rail ball holder 731. The installation box 743 and the balls 732 are slidably matched, and the slide rail screw 744 and the fixed block 733 are threadedly matched. The height adjustment motor 741 is installed on the sliding frame 740, and the motor flexible shaft 742 is transmission-connected with the height adjustment motor 741, and the motor flexible shaft 742 and the slide rail screw 744 are matched by a worm gear. When the height adjustment motor 741 is working, the sliding frame 740 can be driven to move relative to the fixed frame 730 through the motor flexible shaft 742 and the slide rail screw 744, thereby realizing the height adjustment of the seat 1000.

[0085] When the distance between the upper back pad 400 and the lower back pad 200 changes, the filling back pad 300 is always filled between the upper back pad 400 and the lower back pad 200 to achieve support.

[0086] The fixed frame 730 is rotatably matched with the frame of the cushion 100. A backrest rotation motor 734, a motor synchronization rod 735 and a backrest angle adjuster 736 are installed on the fixed frame 730. The backrest rotation motor 734 drives the motor synchronization rod 735, and the backrest angle adjuster 736 is installed between the fixed frame 730 and the frame of the cushion 100, and the backrest angle adjuster 736 is connected to the motor synchronization rod 735. When the motor synchronization rod 735 rotates, the angle between the fixed frame 730 and the frame of the cushion 100 can be changed through the backrest angle adjuster 736.

[0087] The seat cushion 100 slide rail is provided with a slide rail outer rail, a slide rail inner rail and projection welding bolts. The seat cushion 100 frame is provided with structures respectively matched with the slide rail outer rail and the slide rail inner rail to ensure the stability of the movement of the seat cushion 100 frame.

[0088] A front and rear adjustment switch, a seat height adjustment switch and a seat angle adjustment switch are also provided on the outer guard plate of the seat cushion 100. The front and rear adjustment switch, the seat height adjustment switch and the seat angle adjustment switch are connected to the height adjustment motor 741 and the backrest rotation motor 734 and other driving components through the harness assembly 750.

[0089] Based on the same inventive concept, see Fig.11 and Fig.12 The second embodiment of the present application discloses a vehicle, which includes a vehicle body 2000 and a seat 1000 with an adjustable backrest height according to any embodiment of the first aspect. The seat 1000 with an adjustable backrest height is installed on the vehicle body 2000.

[0090] The vehicle disclosed in the present application can adjust the overall height of the seat by moving the upper back cushion 4000, and by providing a filling back cushion 300 between the seat cushion 100 and the upper back cushion 400, when the positions of the upper back cushion 400 and the seat cushion 100 change, the filling back cushion 300 can always fill the gap between the upper back cushion 400 and the seat cushion 100, thereby ensuring a good user experience.

[0091] The seat 1000 of the vehicle disclosed in this embodiment can be controlled in a variety of ways. For example: first, the mechanical buttons on the outer guard plate of the seat cushion 100 can be used to directly control the various driving components, thereby realizing the control of the seat 1000; second, the seat 1000 can be connected to the central control of the vehicle, so that the user can control the seat 1000 on the central control screen; third, the seat 1000 can be controlled by voice control in the car. The hardware methods for realizing the electric adjustment of the backrest height in the three methods are the same, except for the difference in the source of the execution signal.

[0092] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described above in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0093] Therefore, the above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0094] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0095] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0096] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0097] In the present invention, unless otherwise clearly specified and limited, a first feature being above or below a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being above, above, and above a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being below, below, and below a second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0098] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0099] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A seat with an adjustable backrest height, characterized in that: include: cushion; an upper backrest cushion, slidably engaged with the seat cushion; a filling back cushion installed between the seat cushion and the upper back cushion; Wherein, when the upper backrest pad slides relative to the seat cushion, the upper and lower ends of the filling backrest pad always abut against the upper backrest pad and the seat cushion.

2. The seat with adjustable backrest height according to claim 1, characterized in that: The padded backrest cushion comprises: A first sliding member, mounted on the seat cushion; A second sliding member is mounted on the upper backrest cushion, and the second sliding member is slidably matched with the first sliding member; a spring member, two ends of which act on the first sliding member and the second sliding member respectively, and the spring member is used to drive the first sliding member and the second sliding member to move closer to each other; and The foam sleeve is sleeved outside the first sliding member and the second sliding member.

3. The seat with adjustable backrest height according to claim 2, characterized in that: A plurality of first support bars are arranged on one side of the first sliding member facing the second sliding member, and the plurality of first support bars are arranged at intervals along the width direction of the first sliding member, and a first limiting groove is formed between two adjacent first support bars; A plurality of second support bars are arranged on one side of the second sliding member facing the first sliding member, and the plurality of second support bars are arranged at intervals along the width direction of the second sliding member, and a second limiting groove is formed between two adjacent second support bars; The second support bar is staggered with the first support bar, the second support bar is inserted into the first limiting groove, and the first support bar is inserted into the second limiting groove.

4. The seat with adjustable backrest height according to claim 1, characterized in that: It also includes a regulation system, which includes a control module and a regulation module. The control module is electrically connected to the regulation module. The output end of the regulation module acts on the upper backrest cushion, and can drive the upper backrest cushion to move when the regulation module is working.

5. The seat with adjustable backrest height according to claim 4, characterized in that: The control system also includes a setting module, a memory module and a calling module. The adjustment module is also used to generate a position signal of the upper back cushion. The setting module is connected to the adjustment module to set the position signal of the upper back cushion according to the position signal. The memory module is respectively connected to the setting module and the adjustment module. The memory module memorizes the position signal according to the position signal. The calling module is respectively connected to the memory module and the setting module. The calling module retrieves the position signal through the setting module and sends the position signal to the memory module. The memory module controls the adjustment module according to the position signal to adjust the upper back cushion to return to the corresponding upper back cushion position.

6. The seat with adjustable backrest height according to claim 4, characterized in that: The adjustment module comprises: A mounting box mounted on the upper backrest cushion; A slide rail screw, wherein the first end of the slide rail screw is rotationally matched with the mounting box, the second end of the slide rail screw is rotationally matched with the upper backrest pad, and the slide rail screw is threadedly matched with the seat cushion.

7. The seat with adjustable backrest height according to claim 6, characterized in that: The adjustment module also includes: a height adjustment motor mounted on the upper backrest cushion; The motor flexible shaft is drivingly connected to the height adjustment motor, and the motor flexible shaft cooperates with the guide rail screw through a worm gear.

8. The seat with adjustable backrest height according to claim 7, characterized in that: The seat cushion is provided with a fixing block and a slide rail ball retainer, a plurality of balls are provided in the slide rail ball retainer, the mounting box is slidably matched with the balls, and the slide rail lead screw is threadedly matched with the fixing block.

9. A chair with an adjustable backrest height according to any one of claims 1 to 8, characterized in that: It also includes a frame assembly and a lower backrest pad, the frame assembly includes a cushion frame, a fixed frame and a sliding frame, the fixed frame is installed on the cushion frame, and the sliding frame is slidably connected to the fixed frame; the cushion is installed on the cushion frame, the lower backrest pad is installed on the fixed frame, and the upper backrest pad is installed on the sliding frame.

10. A vehicle, characterized in that: The invention comprises a vehicle body and a seat with an adjustable backrest height as claimed in any one of claims 1 to 9, wherein the seat with an adjustable backrest height is mounted on the vehicle body.

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