An electric table board and seat

Abstract

The utility model provides a kind of electric table board and seat, it is related to the technical field of automotive trim.The electric table board includes table board assembly, connecting rod assembly, drive element and first wire harness.Table board assembly is equipped with mounting cavity, and has two positions of unfolding and storage.Connecting rod assembly connects table board assembly and mounting support, and constitutes support transmission mechanism;Drive element is arranged in mounting cavity, and is transmission connection with connecting rod assembly, drives table board reciprocating motion.First wire harness is arranged in connecting rod assembly and extends to mounting cavity, realizes hidden wiring, for electrically connecting external power supply, controller and drive element.Based on the above, the electric table board provided by the utility model integrates drive element in the mounting cavity of table board assembly, does not occupy seat backrest space, is conducive to layout optimization and ride comfort improvement;First wire harness is arranged in the inside of connecting rod assembly, realizes hidden wiring, improves wiring neatness and safety.

Description

Technical Field

[0001] This utility model relates to the field of automotive interior technology, and more specifically, to an electric table and a seat. Background Technology

[0002] As people's living standards improve, consumers have increasingly higher requirements for the quality of car interiors. To meet these diverse needs, more and more car models are equipping seat tray tables as standard or optional features. Seat tray tables enhance passenger comfort and convenience. They are typically installed behind the front seats, are foldable, and flexible in use, suitable for work, reading, entertainment, and more.

[0003] However, the inventors discovered that the traditional electric small table drive mechanism is usually located inside the backrest, which occupies a lot of space and has a significant impact on the arrangement of other modules inside the backrest. In addition, it also causes the backrest foam to be thinner, affecting the comfort of riding. Utility Model Content

[0004] The purpose of this utility model is to provide an electric table and seat that avoids occupying backrest space, thereby saving layout space, facilitating the integration of functional modules, maintaining the thickness of the foam layer, and improving riding comfort.

[0005] The embodiments of this utility model can be implemented as follows: In a first aspect, this utility model provides an electric tabletop, comprising: The tabletop assembly has a mounting cavity and features both an unfolded and a storage position. Linkage assembly, which connects to the tabletop assembly and is used for connection to the mounting bracket; A driving element is disposed in the mounting cavity and is connected to the linkage assembly for driving the linkage assembly, thereby causing the table assembly to reciprocate between the unfolded position and the stowed position. The first wiring harness passes through the linkage assembly and extends from the linkage assembly to the mounting cavity for electrical connection to an external power supply, controller, and drive element.

[0006] In an optional embodiment, the linkage assembly includes a first linkage and a second linkage; one end of both the first linkage and the second linkage is rotatably connected to the tabletop assembly, and the other end is rotatably connected to the mounting bracket; the driving element is drively connected to the first linkage and / or the second linkage.

[0007] In an optional embodiment, the first link and / or the second link include a housing and a cover. The housing is rotatably connected to the table assembly and the mounting bracket, respectively, and the cover cooperates with the housing to form a wiring cavity for guiding the first wire harness through.

[0008] In an optional embodiment, the electric tabletop further includes a synchronous shaft, a first link is fixedly connected to the synchronous shaft and rotatably connected to the tabletop assembly via the synchronous shaft, and a drive element is driven connected to the synchronous shaft to drive the first link to move via the synchronous shaft; Alternatively, the second link is fixedly connected to the synchronous shaft and rotatably connected to the table assembly via the synchronous shaft. The drive element is driven by the synchronous shaft to drive the second link to move via the synchronous shaft.

[0009] In an optional embodiment, the electric tabletop also includes a coupling disposed between the synchronous shaft and the drive element.

[0010] In an optional embodiment, the electric tabletop also includes a damper, which is sleeved on the synchronous shaft and fixedly connected to the tabletop assembly to provide motion damping.

[0011] In an optional embodiment, the end of the synchronous shaft near the first or second link has a square cross-section, and the cross-section gradually decreases in the direction of approaching the first or second link; the first or second link has a square hole that mates with the synchronous shaft, and the synchronous shaft is inserted into the square hole.

[0012] In an optional embodiment, the electric tabletop further includes an anti-pinch detection element, which is disposed on the first link and / or the second link and located between the first link and the second link; the anti-pinch detection element is used to be electrically connected to the controller and to detect whether there is a foreign object between the first link and the second link.

[0013] In an optional embodiment, the electric tabletop further includes a second wiring harness that passes through the first or second link and runs parallel to the first wiring harness, for electrically connecting an external power source, a controller, and an anti-pinch detection element.

[0014] In an optional implementation, the anti-pinch detection element is any one of a micro switch, a pressure sensor, a capacitive sensor, an infrared beam sensor, or a resistive sensor.

[0015] In an optional embodiment, the tabletop assembly includes an upper housing, a lower housing, and a tabletop frame; wherein, the tabletop frame is rotatably connected to the connecting rod assembly, the upper housing is connected to one side of the tabletop frame, and the lower housing is connected to the opposite side of the tabletop frame, or connected to the upper housing; the tabletop frame and the upper or lower housing enclose an installation cavity.

[0016] In an optional embodiment, the electric tabletop further includes a tilt detection element disposed on the tabletop assembly for electrical connection with the controller and for detecting the tilt angle of the tabletop assembly relative to the horizontal plane.

[0017] In an optional embodiment, the electric tabletop further includes at least one of a heating pad, an ambient light, and a wireless charging assembly disposed within the mounting cavity. The electric tabletop also includes a third wiring harness that passes through a linkage assembly and extends from the linkage assembly to the mounting cavity for electrical connection between an external power source, a controller, and at least one of the heating pad, the ambient light, and the wireless charging assembly.

[0018] Secondly, this utility model provides a seat, including a mounting bracket and an electric table as described in any of the foregoing embodiments, with a linkage assembly connected to the mounting bracket and the mounting bracket connected to the backrest of the seat.

[0019] The beneficial effects of the electric table and chair provided in this embodiment of the utility model include: This utility model provides an electric table and a seat. The electric table includes a table assembly, a linkage assembly, a drive element, and a first wiring harness. The table assembly has a mounting cavity and two positions: unfolded and retracted. The linkage assembly connects the table assembly and a mounting bracket, forming a support and transmission mechanism. The drive element is located in the mounting cavity and is connected to the linkage assembly to drive the table to reciprocate. The first wiring harness passes through the linkage assembly and extends into the mounting cavity, achieving concealed wiring, and is used to electrically connect an external power source, a controller, and the drive element. Based on the above, the electric table provided by this utility model integrates the drive element into the mounting cavity of the table assembly, without occupying the seat back space, which is beneficial for layout optimization and improved seating comfort; the first wiring harness passes through the inside of the linkage assembly, achieving concealed wiring and improving wiring neatness and safety. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the electric tabletop provided in this embodiment; Figure 2 This is an exploded structural diagram of the electric tabletop provided in this embodiment; Figure 3 This is a structural diagram of the tabletop assembly provided in this embodiment in its unfolded position; Figure 4 This is a structural diagram of the tabletop assembly provided in this embodiment in its unfolded and stowed positions; Figure 5 This is a structural diagram of the tabletop assembly provided in this embodiment in its storage position; Figure 6This is a schematic diagram of the structure of the first wire harness provided in this embodiment; Figure 7 This is a transmission diagram when the driving element provided in this embodiment is a single motor; Figure 8 This is a cross-sectional view of a motor as the driving element provided in this embodiment; Figure 9 This is a schematic diagram of the synchronous shaft provided in this embodiment; Figure 10 This is a schematic diagram of the square hole provided in this embodiment; Figure 11 This is a schematic diagram of the assembly of the square hole and the synchronous shaft provided in this embodiment; Figure 12 This is another assembly diagram of the square hole and the synchronous shaft provided in this embodiment; Figure 13 This embodiment provides a transmission diagram when the driving element consists of two motors; Figure 14 This embodiment provides another transmission diagram when the driving element consists of two motors; Figure 15 This is a cross-sectional view of the drive element provided in this embodiment when there are two motors; Figure 16 This is a schematic diagram of the linkage assembly provided in this embodiment; Figure 17 This is an exploded view of the linkage assembly provided in this embodiment; Figure 18 This is a schematic diagram of the structure of the cover provided in this embodiment; Figure 19 This is a schematic diagram of the shell structure provided in this embodiment; Figure 20 This is a cross-sectional structural diagram of the linkage assembly provided in this embodiment; Figure 21 This is a schematic diagram of the structure of the first link provided in this embodiment; Figure 22 This is a schematic diagram of the structure of the electric table when the seat is in the first tilt position, as provided in this embodiment. Figure 23 This is a schematic diagram of the structure of the electric table when the seat is in the second tilt position, as provided in this embodiment. Figure 24 This is a schematic diagram of the electric table when the seat is in the third tilt position, as provided in this embodiment. Figure 25 This is a schematic diagram of the tabletop frame provided in this embodiment; Figure 26 An exploded view of the electric tabletop integrated with functional components provided in this embodiment; Figure 27 This is a schematic diagram of the structure for closing the makeup mirror on the electric tabletop provided in this embodiment; Figure 28 This is a schematic diagram of the structure for opening the makeup mirror on the electric tabletop provided in this embodiment.

[0022] Icons: 10-Electric tabletop; 30-Mounting bracket; 100-Tabletop assembly; 110-Upper housing; 111-Upper cover frame; 113-Upper cover covering layer; 130-Lower housing; 150-Tabletop frame; 151-First mounting slot; 153-Second mounting slot; 155-Cable routing channel; 200-Linkage assembly; 210-First link; 221-Housing; 223-Cover; 225-Square hole; 227-Stop; 23 0-Second connecting rod; 300-Drive element; 310-Motor; 400-Controller; 500-First wiring harness; 610-Synchronous shaft; 620-Coupling; 630-First screw; 640-Washer; 650-Locking nut; 660-Second screw; 670-Damper; 700-Anti-pinch detection element; 810-Makeup mirror; 830-Wireless charging assembly; 850-Heating pad; 870-Ambient light; 890-Third wiring harness. Detailed Implementation

[0023] In related technologies, the drive mechanism of electric tables is usually located inside the seat back, which takes up a lot of space, affects the layout of other components, and causes the foam layer of the backrest to become thinner, reducing the comfort of sitting.

[0024] To address the aforementioned issues, this utility model provides an electric table and seat. By integrating the drive element into the mounting cavity of the table assembly, it avoids occupying backrest space, thus saving layout space, facilitating functional module integration, maintaining foam layer thickness, and improving seating comfort.

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0030] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0031] The following describes in detail the overall structure, working principle, and technical effects of the electric table and chair provided by this utility model through embodiments and in conjunction with the accompanying drawings.

[0032] Please see Figure 1 and Figure 2 This utility model provides an electric table 10, including a table assembly 100, a linkage assembly 200, a drive element 300, and a first wiring harness 500. The electric table 10 is suitable for car seats and can be installed on the back of the seat for rear passengers to unfold and use for placing items, reading, writing, or operating electronic devices, improving passenger comfort and ease of use.

[0033] The table assembly 100 has an installation cavity and has an unfolded position and a folded position. It should be noted that in the folded position, the table assembly 100 is attached to the surface of the seat back and does not occupy the seating space; in the unfolded position, the table assembly 100 flips outward from the backrest and unfolds to a horizontal or near-horizontal position to form a usable operating platform.

[0034] Specifically, Figure 3 The diagram shows the tabletop assembly 100 in the fully extended position. At this time, the tabletop assembly 100 is in a horizontal state, and the function is released. Figure 4 The tabletop assembly 100 is positioned in the middle between unfolding and folding, serving to demonstrate its transitional posture during movement; Figure 5 This is a diagram showing the storage location, indicating that the tabletop assembly 100 is fully retracted and flush against the backrest.

[0035] The linkage assembly 200 is connected to the tabletop assembly 100 and is used to connect to the mounting bracket 30, forming a support and transmission mechanism. The drive element 300 is disposed in the mounting cavity and is connected to the linkage assembly 200 for driving the linkage assembly 200, thereby causing the tabletop assembly 100 to reciprocate between the unfolded position and the stowed position.

[0036] Understandably, since the drive element 300 is integrated into the mounting cavity of the table assembly 100 itself, it does not occupy the internal space of the seat back, effectively avoiding the space occupation problem caused by placing the drive mechanism inside the seat back in the traditional solution. On this basis, on the one hand, it facilitates the layout and integration of other functional modules, improving the integration of the entire vehicle interior; on the other hand, it helps to retain a sufficiently thick seat foam layer, thereby maintaining the original seating comfort.

[0037] Based on the above, to avoid problems such as messiness, wear, or motion interference caused by exposed wire harnesses, the first wire harness 500 passes through the connecting rod assembly 200 and extends from the connecting rod assembly 200 to the mounting cavity, achieving concealed wiring; simultaneously, as Figure 6 As shown, the first wiring harness 500 is used to electrically connect the external power supply, the controller 400, and the drive element 300, forming a complete power supply and control circuit.

[0038] Based on the above, the electric table 10 provided by this utility model integrates the drive element 300 into the mounting cavity of the table assembly 100, avoiding the occupation of seat back space, which is beneficial for the layout of functional modules and maintaining seating comfort; the first wiring harness 500 passes through the inside of the connecting rod assembly 200, realizing concealed wiring and improving the neatness and safety of wiring. The overall solution achieves automation, integration and high reliability of the electric table 10 without sacrificing the seating experience, and has good practicality, safety and ease of assembly and maintenance.

[0039] In an alternative embodiment, please refer again. Figure 1 and Figure 2 There are two sets of linkage assemblies 200, which are spaced apart on the tabletop assembly 100 and located at the two edges along the length of the tabletop assembly 100, forming a symmetrical support structure. Both sets of linkage assemblies 200 are connected to the same drive element 300, ensuring synchronized movement on both sides and effectively preventing jamming, tilting, or wobbling caused by uneven force, thus improving the stability and reliability of the tabletop assembly 100 during unfolding and folding.

[0040] In other embodiments, when there are two or more sets of linkage assemblies 200, an independent drive scheme can also be adopted, that is, each set of linkage assemblies 200 is configured with an independent drive element 300 to achieve individual drive and control. The two drive configurations can be selected according to the actual application requirements, taking into account performance, cost and control complexity.

[0041] Furthermore, the linkage assembly 200 includes a first linkage 210 and a second linkage 230. One end of each linkage 210 and 230 is rotatably connected to the tabletop assembly 100, and the other end is rotatably connected to the mounting bracket 30. Thus, the first linkage 210, the second linkage 230, the tabletop assembly 100, and the mounting bracket 30 together constitute a four-bar linkage. The mounting bracket 30 serves as a fixed frame, the first linkage 210 and the second linkage 230 are connecting rods, and the tabletop assembly 100 serves as a connecting rod linking the two connecting rods.

[0042] Therefore, by driving the drive element 300 to the first link 210 and / or the second link 230, driving at least one link to rotate, the entire four-bar linkage can be coordinated to effectively guide the table assembly 100 to complete the flipping and unfolding action, and maintain a stable posture during the movement, avoiding swaying or tilting, and achieving smooth and reliable unfolding and storage operations.

[0043] Furthermore, such as Figure 7 and Figure 8 As shown, the electric tabletop 10 also includes a synchronous shaft 610 for power transmission between the drive element 300 and the linkage assembly 200. Especially when there are two sets of linkage assemblies 200, two synchronous shafts 610 can be set to connect to the linkage assemblies 200 on both sides respectively, so as to realize the linkage and coordinated transmission of the movement on both sides, ensure the synchronous operation of the mechanisms on both sides, and improve the stability and reliability of the overall movement.

[0044] In one alternative implementation, such as Figure 7 and Figure 8 As shown, the second link 230 is fixedly connected to the synchronous shaft 610 and rotatably connected to the tabletop assembly 100 via the synchronous shaft 610, allowing the second link 230 to rotate around the axis of the synchronous shaft 610. The drive element 300 is driven by the synchronous shaft 610, thereby driving the second link 230 to move via the synchronous shaft 610, thus driving the entire linkage mechanism to move and realize the unfolding and folding of the tabletop assembly 100.

[0045] In another alternative embodiment, similarly, the first link 210 is fixedly connected to the synchronous shaft 610 and rotatably connected to the tabletop assembly 100 via the synchronous shaft 610, allowing the first link 210 to rotate around the axis of the synchronous shaft 610. The drive element 300 is drivenly connected to the synchronous shaft 610 to drive the first link 210 to move via the synchronous shaft 610, thereby driving the entire linkage mechanism to move and realize the unfolding and folding of the tabletop assembly 100.

[0046] Optionally, in order to adjust the axial clearance between the synchronous shaft 610 and the table assembly 100, a shim 640 is also provided on the synchronous shaft 610, and the shim 640 is provided between the table assembly 100 and the first connecting rod 210 or the second connecting rod 230.

[0047] To ensure the stability of the connection between the synchronous shaft 610 and the first connecting rod 210 or the second connecting rod 230, such as Figure 9 As shown, the end of the synchronous shaft 610 near the first connecting rod 210 or the second connecting rod 230 has a square cross-section, and the cross-section gradually decreases along the direction near the first connecting rod 210 or the second connecting rod 230, forming a tapered square-head transition section. Correspondingly, as... Figure 10 As shown, a square hole 225 that mates with the synchronous shaft 610 is provided on the first connecting rod 210 or the second connecting rod 230.

[0048] Please see Figure 11 and Figure 12 During assembly, the synchronous shaft 610 is inserted into the square hole 225. When fully inserted, the square end of the synchronous shaft 610 and the square hole 225 form a torsional connection with no clearance or interference fit, which effectively prevents relative rotation or axial movement between the two and ensures stable and reliable power transmission.

[0049] Please refer to it again. Figure 7 and Figure 8 The electric tabletop 10 also includes a locking nut 650, which is threaded into the external thread section at the end of the synchronous shaft 610. After being tightened, the locking nut 650 abuts against the side surface of the tabletop assembly 100. It is used to lock and position the first connecting rod 210 (or the second connecting rod 230), the washer 640 and the tabletop assembly 100 as a whole in the axial direction, thereby effectively preventing the components sleeved on the synchronous shaft 610 from moving or falling off in the axial direction, and ensuring the stability and reliability of the transmission structure.

[0050] It should be noted that the locking nut 650 can be used in conjunction with the square transition section on the synchronous shaft 610 and the square hole 225 of the connecting rod to achieve dual circumferential and axial positioning of the connecting rod. The square insertion structure transmits torque and restricts relative rotation, while the locking nut 650 provides axial constraint. Their synergistic effect not only improves the rigidity and precision of the transmission connection but also ensures the stability and reliability of the first connecting rod 210 or the second connecting rod 230 under frequent start-stop and long-term operating conditions.

[0051] To further enhance the adaptability and stability of the electric tabletop 10, in some embodiments, the electric tabletop 10 also includes a coupling 620. The coupling 620 is disposed between the synchronous shaft 610 and the drive element 300 for transmitting driving torque. Furthermore, the coupling 620 has the function of absorbing axial tolerances, capable of accommodating minor axial clearances generated during assembly or axial movement during operation, improving the fault tolerance of the connection and the reliability of the structure. Optionally, the coupling 620 is fixedly connected to the synchronous shaft 610 and the output shaft of the drive element 300 respectively by first screws 630, achieving reliable assembly and convenient disassembly.

[0052] In some embodiments, the electric tabletop 10 further includes a damper 670, which is sleeved on the synchronous shaft 610 and fixedly connected to the tabletop assembly 100, forming a motion-assisted stabilization mechanism. The damper 670 provides motion damping, suppressing swaying or shaking caused by inertia or external disturbances, making the tabletop assembly 100 smoother and more gentle during unfolding and folding. Optionally, the damper 670 is fixedly connected to the tabletop assembly 100 by a second screw 660.

[0053] It should be noted that, as mentioned above, when there are two sets of connecting rod assemblies 200 and two corresponding synchronous shafts 610, the accessories and structures related to the synchronous shafts 610 should also be configured accordingly. That is, each synchronous shaft 610 is independently equipped with a coupling 620, a locking nut 650, a washer 640, and a damper 670, etc., to ensure the functional integrity and operational consistency of the transmission systems on both sides.

[0054] like Figure 7 and Figure 8 As shown, in an embodiment where the drive element 300 includes a motor 310, the motor 310 can transmit power to the output shaft through a gear assembly (such as a worm gear, spur gear, or helical gear transmission mechanism), thereby driving the synchronous shaft 610 and the linkage assembly 200 to move, so as to realize the unfolding and folding of the tabletop assembly 100.

[0055] Based on this, when the tabletop assembly 100 moves to the storage position or the unfolded position, the controller 400 can control the motor 310 to briefly reverse a certain angle, using the gear reverse pre-tightening method to eliminate the gear meshing gap in the transmission path, thereby effectively reducing the vertical downward loosening or collapse caused by the existence of gaps.

[0056] In this state, even when the vehicle is subjected to vibration or impact during operation, the table assembly 100 can still maintain a stable locked state in the extreme position.

[0057] like Figures 13 to 15 As shown, in an embodiment where the drive element 300 includes two motors 310, the two motors 310 transmit power to the same output shaft through gear assemblies (such as worm gears, spur gears, or helical gear transmission mechanisms), thereby driving the synchronous shaft 610 and the linkage assembly 200 to move in tandem, so as to realize the smooth unfolding and storage of the tabletop assembly 100.

[0058] When the tabletop assembly 100 moves to the stowed or unfolded position, the controller 400 can adjust the speed difference between the two motors 310 or control one of the motors 310 to slightly reverse, so that the two gear transmission systems apply preload to the transmission gears on the output shaft from opposite directions, thereby achieving bidirectional compression. This preload ensures that the output shaft has no free play in either the forward or reverse rotation direction, effectively eliminating the backlash and looseness caused by gear meshing clearance.

[0059] In this state, the output shaft remains under controlled constraint, avoiding shaking or abnormal noise caused by vehicle vibration or external impact, which greatly enhances the structural stability of the electric table 10 at its extreme position.

[0060] Please see Figure 16 and Figure 17 The internal wiring structure of the linkage assembly 200 will be described in detail below. The first linkage 210 and / or the second linkage 230 include a housing 221 and a cover 223. The housing 221 is a hollow structure with connecting parts at both ends for rotatably connecting with the table assembly 100 and the mounting bracket 30, respectively. The cover 223 fits with the housing 221 and can be sealed and assembled by means of snaps, screws or ultrasonic welding.

[0061] Thus, the two together form a wiring cavity for guiding the first wire harness 500 through. Understandably, the enclosed wiring cavity provides good mechanical protection for the wire harness; during the unfolding or retraction of the tabletop assembly 100, the wire harness moves synchronously with the connecting rod, with a reasonable routing and uniform stress, effectively reducing the risk of fatigue damage and connection failure caused by repeated bending.

[0062] It should be noted that the above structure can be applied to either the first link 210 or the second link 230, or both. When a wiring cavity is provided in only one link (such as the first link 210), the wire harness can pass through the link in a single path and be led to the tabletop assembly 100; when both sides are provided, one can be selected according to the wiring requirements.

[0063] Optionally, in one embodiment, the transmission structure of the aforementioned drive element 300 is combined, such as... Figure 18 and Figure 19 As shown, the first connecting rod 210 has a wiring groove 155 formed by the housing 221 and the cover 223 for the first wire harness 500 to pass through; while the second connecting rod 230 has a square groove that mates with the synchronous shaft 610 for power transmission. Thus, the transmission function and the wiring function are realized independently through different connecting rods without interference, which not only improves the rationality of space utilization, but also simplifies the structural complexity of a single connecting rod.

[0064] Please see Figure 20 The electric tabletop 10 also includes an anti-pinch detection element 700, which is disposed on the first link 210 and / or the second link 230 and located between the first link 210 and the second link 230. The anti-pinch detection element 700 is used to electrically connect to the controller 400 and to detect whether there is a foreign object between the first link 210 and the second link 230.

[0065] In practical applications, when the tabletop assembly 100 is unfolding or folding, if there is an object (such as a finger, clothing, or other obstacle) on the movement path between the first link 210 and the second link 230, the anti-pinch detection element 700 can promptly detect the abnormal situation and generate a corresponding trigger signal to send to the controller 400. Upon receiving the signal, the controller 400 immediately responds and controls the drive element 300 to stop running or start reverse movement, thereby avoiding the risk of pinching and ensuring user safety.

[0066] The anti-pinch detection element 700 can be implemented using various sensing technologies. In specific embodiments, the anti-pinch detection element 700 can be any one of a micro switch, pressure sensor, capacitive sensor, infrared through-beam sensor, or resistive sensor. The specific form can be flexibly selected according to factors such as installation space, sensitivity requirements, and cost to meet the safety and performance needs of different application scenarios.

[0067] Furthermore, the electric tabletop 10 also includes a second wiring harness, which passes through the first connecting rod 210 (e.g., Figure 21(As shown) or the second link 230, running parallel to the first wiring harness 500, to achieve centralized management and protection of the electrical circuit. This second wiring harness is used to electrically connect the external power supply, the controller 400, and the anti-pinch detection element 700, forming a complete safety control loop.

[0068] Furthermore, such as Figure 17 As shown, a stop 227 is provided on the first link 210 and / or the second link 230. When the table assembly 100 moves to the unfolded position, the stop 227 contacts the other link to mechanically limit the table assembly 100 in the unfolded position, ensuring that it moves into place and maintains a stable posture.

[0069] In practical applications, to avoid damage to electrical components caused by the impact force or local compression generated when the stop part 227 contacts another link, the anti-pinch detection element 700 is set away from the stop part 227 to ensure that it has good structural safety and detection sensitivity during long-term use.

[0070] To further improve the adaptability and user comfort of the electric tabletop 10, the electric tabletop 10 also includes a tilt angle detection element. The tilt angle detection element is disposed on the tabletop assembly 100, is electrically connected to the controller 400, and is used to detect the tilt angle of the tabletop assembly 100 relative to the horizontal plane.

[0071] like Figures 22 to 24 As shown, when the vehicle seat position is adjusted (such as when the seat back is tilted), the tilt angle detection element will transmit the tilt angle signal collected to the controller 400 in real time. The controller 400 analyzes and processes the signal according to the preset algorithm and automatically controls the drive element 300 to adjust the extension degree of the linkage mechanism, thereby dynamically compensating for the posture of the table and keeping it always within the range of close to horizontal or the ideal working angle set by the user.

[0072] Therefore, no matter what angle the user adjusts the seat back to, the table assembly 100 can adaptively maintain a stable and usable support surface, avoiding interference with writing, placing electronic devices, or eating due to excessive tilt.

[0073] Optionally, the tilt detection element can be an inertial sensing device such as a tilt sensor, accelerometer, or gyroscope, which can accurately sense the attitude changes of the table in static or dynamic states.

[0074] In an optional embodiment, the electric tabletop 10 also includes a controller 400 located within the mounting cavity. That is, the controller 400 and the drive element 300 are integrated within the tabletop assembly 100, forming a highly integrated power and control module. Furthermore, placing the controller 400 close to the drive element 300 helps shorten the electrical connection path, reduce signal interference and voltage drop loss, and improve control response speed and system stability.

[0075] It should be noted that in this embodiment, the controller 400 can be integrated with the tilt detection element, meaning the controller 400 integrates a built-in tilt detection module, enabling it to autonomously detect the tilt angle of the tabletop assembly 100 relative to the horizontal plane. In this case, there is no need to set up an additional independent tilt detection element to achieve real-time perception and feedback of the tabletop's posture.

[0076] In other embodiments, the electric table 10 may not have a built-in controller 400, but instead use an external controller 400. In this case, the controller 400 is located outside the table assembly 100, for example, installed in the seat frame, the center armrest area, or the vehicle's electronic control system, and is connected to the drive element 300, sensors, and other components inside the table assembly 100 via a wiring harness.

[0077] Please refer to it again. Figure 1 and Figure 2 The tabletop assembly 100 includes an upper shell 110, a lower shell 130, and a tabletop frame 150. The tabletop frame 150, as the internal support structure of the tabletop assembly 100, possesses high structural strength and rigidity, effectively enhancing the overall load-bearing capacity and resistance to deformation. Therefore, the tabletop frame 150 is rotatably connected to the linkage assembly 200, used to transmit motion and bear various loads experienced by the tabletop during use.

[0078] In addition, the table frame 150 also supports the drive element 300, the controller 400 (if provided), and other functional components, and enables the positioning and fixation of each component. Figure 25 As shown, the table frame 150 is provided with a first mounting groove 151 adapted to the drive element 300 for securely mounting the motor 310 and other drive devices; a second mounting groove 153 adapted to the controller 400 for integrated arrangement of the controller 400; and a wiring groove 155 adapted to the first wire harness 500 for guiding and fixing the wire harness route to avoid bending, wear or interference.

[0079] The upper housing 110 is connected to one side of the table frame 150, forming the upper surface of the electric table 10. It is typically made of a smooth, wear-resistant, and easy-to-clean material to enhance user comfort and aesthetics. The lower housing 130 is connected to the opposite side of the table frame 150, or to the upper housing 110, together covering the table frame 150 to form a complete external outline.

[0080] In the assembled state, the table frame 150 and the upper housing 110 or the lower housing 130 enclose to form a mounting cavity. As mentioned above, the mounting cavity is used to accommodate electrical components such as the drive element 300, the controller 400, and some wiring harnesses, realizing the internalization and integration of key components.

[0081] like Figure 26 As shown, the electric tabletop 10 can also integrate functional components to enhance its practicality. In an optional embodiment, the electric tabletop 10 also includes at least one of a heating pad 850, an ambient light 870, and a wireless charging assembly 830 disposed within the mounting cavity, for providing users with diverse functions such as heating, lighting, or charging of electronic devices, thereby enhancing comfort and convenience.

[0082] In practical applications, the wireless charging assembly is mounted on the table frame 150. An ambient light 870 is positioned between the upper housing 110 and the lower housing 130 to provide a soft visual cue or ambient lighting effect. The upper housing 110 includes an upper cover frame 111 and an upper cover covering layer 113 covering it. The heating pad 850 is adhered to the inner surface of the upper cover frame 111 and sealed by the upper cover covering layer 113 to ensure efficient heat conduction.

[0083] In addition, the electric tabletop 10 can also integrate non-electric functional components, such as... Figure 27 and Figure 28 The makeup mirror 810 shown can be pivotally connected to the upper cover frame 111 and can be opened and closed by flipping, which is convenient for users and does not take up extra space.

[0084] It should be noted that, since the heating pad 850 is a planar heating structure, it needs to be attached to the surface of the upper cover frame 111 over a large area to achieve uniform heating. During its placement, it is necessary to avoid the areas of other installed functional components. Specifically, the heating pad 850 has a hollow structure at the locations of the wireless charging assembly and the makeup mirror 810 to ensure that each functional module operates independently, stably, and reliably.

[0085] For the aforementioned electrical functional components, the electric tabletop 10 also includes a third wiring harness 890, which passes through the linkage assembly 200 and extends from the linkage assembly 200 to the mounting cavity, for electrically connecting the external power supply, the controller 400, and at least one of the heating pad 850, the ambient light 870, and the wireless charging assembly 830.

[0086] Similar to the wiring methods of the first and second wire harnesses mentioned above, the third wire harness 890 is also routed through the wiring cavity inside the connecting rod assembly 200 to achieve concealed wiring. This effectively avoids problems such as wear, motion interference, or decreased aesthetics caused by exposed wire harnesses, while ensuring stable power supply and reliable signal transmission for each functional module.

[0087] It should be noted that the first wire harness 500, the second wire harness, and the third wire harness 890 can be bundled together to form a unified wire harness assembly, enabling centralized wiring management and improving assembly efficiency and the neatness of the internal layout. Since the third wire harness 890 connects to a large number of functional components, it can also include multiple parallel sub-wire harnesses. Each sub-wire harness is used to electrically connect the external power supply, the controller 400, and the corresponding functional component (such as the heating pad 850, the ambient light 870, or the wireless charging assembly 830) to achieve independent power supply and reliable control.

[0088] In summary, this utility model provides an electric tabletop 10, including a tabletop assembly 100, a linkage assembly 200, a drive element 300, and a first wiring harness 500. The tabletop assembly 100 has a mounting cavity and two positions: unfolded and retracted. The linkage assembly 200 connects the tabletop assembly 100 and the mounting bracket 30, forming a support and transmission mechanism; the drive element 300 is located in the mounting cavity and is connected to the linkage assembly 200 to drive the tabletop to reciprocate. The first wiring harness 500 passes through the linkage assembly 200 and extends into the mounting cavity, achieving concealed wiring, and is used to electrically connect an external power supply, a controller 400, and the drive element 300. Based on the above, the electric tabletop 10 provided by this utility model integrates the drive element 300 into the mounting cavity of the tabletop assembly 100, without occupying the seat back space, which is beneficial for layout optimization and improved seating comfort; the first wiring harness 500 passes through the linkage assembly 200, achieving concealed wiring and improving wiring neatness and safety.

[0089] In addition, this utility model also provides a seat, which includes a mounting bracket 30 and an electric table 10 as described in the previous embodiment. The linkage assembly 200 is connected to the mounting bracket 30, specifically through a detachable bolt connection. Optionally, the mounting bracket 30 is connected to the backrest of the seat, specifically it can be integrated with the seat frame, or it can be connected in a detachable manner for easy assembly and maintenance.

[0090] It should be noted that, since this seat integrates the electric table 10 from the aforementioned embodiments, it also has the advantages of not occupying backrest space, saving layout space, and facilitating the integration of functional modules. At the same time, it helps to maintain the thickness of the foam layer of the seat back, thereby improving seating comfort. The relevant beneficial effects will not be elaborated here.

[0091] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. An electric tabletop, characterized in that, include: A tabletop assembly (100) is provided with an installation cavity and has an unfolded position and a folded position; Linkage assembly (200), which is connected to the tabletop assembly (100) and is used to connect to the mounting bracket (30); A driving element (300) is disposed in the mounting cavity and is connected to the linkage assembly (200) for driving the linkage assembly (200) so as to drive the table assembly (100) to reciprocate between the unfolded position and the stowed position; A first wiring harness (500) passes through the link assembly (200) and extends from the link assembly (200) to the mounting cavity for electrical connection to an external power source, a controller (400), and the drive element (300).

2. The electric tabletop according to claim 1, characterized in that, The linkage assembly (200) includes a first linkage (210) and a second linkage (230); one end of the first linkage (210) and the second linkage (230) are rotatably connected to the tabletop assembly (100), and the other end is rotatably connected to the mounting bracket (30); the drive element (300) is drively connected to the first linkage (210) and / or the second linkage (230).

3. The electric tabletop according to claim 2, characterized in that, The first link (210) and / or the second link (230) include a housing (221) and a cover (223). The housing (221) is rotatably connected to the table assembly (100) and the mounting bracket (30) respectively. The cover (223) cooperates with the housing (221) to form a wiring cavity for guiding the first wire harness (500) through.

4. The electric tabletop according to claim 2, characterized in that, The electric tabletop (10) also includes a synchronous shaft (610), the first connecting rod (210) is fixedly connected to the synchronous shaft (610) and rotatably connected to the tabletop assembly (100) through the synchronous shaft (610), and the driving element (300) is driven connected to the synchronous shaft (610) to drive the first connecting rod (210) to move via the synchronous shaft (610); Alternatively, the second link (230) is fixedly connected to the synchronous shaft (610) and rotatably connected to the tabletop assembly (100) via the synchronous shaft (610). The drive element (300) is driven connected to the synchronous shaft (610) to drive the second link (230) to move via the synchronous shaft (610).

5. The electric tabletop according to claim 4, characterized in that, The electric tabletop (10) also includes a coupling (620) disposed between the synchronous shaft (610) and the drive element (300).

6. The electric tabletop according to claim 4, characterized in that, The electric tabletop (10) also includes a damper (670), which is sleeved on the synchronous shaft (610) and fixedly connected to the tabletop assembly (100) to provide motion damping.

7. The electric tabletop according to claim 4, characterized in that, The cross-section of the end of the synchronous shaft (610) near the first connecting rod (210) or the second connecting rod (230) is square, and the cross-section gradually decreases along the direction near the first connecting rod (210) or the second connecting rod (230); a square hole (225) is provided on the first connecting rod (210) or the second connecting rod (230) to cooperate with the synchronous shaft (610), and the synchronous shaft (610) is inserted into the square hole (225).

8. The electric tabletop according to claim 2, characterized in that, The electric tabletop (10) further includes an anti-pinch detection element (700), which is disposed on the first link (210) and / or the second link (230) and located between the first link (210) and the second link (230); the anti-pinch detection element (700) is used to be electrically connected to the controller (400) and to detect whether there is a foreign object between the first link (210) and the second link (230).

9. The electric tabletop according to claim 8, characterized in that, The electric tabletop (10) also includes a second wiring harness, which passes through the first connecting rod (210) or the second connecting rod (230) and runs parallel to the first wiring harness (500) for electrically connecting the external power supply, the controller (400) and the anti-pinch detection element (700).

10. The electric tabletop according to claim 8, characterized in that, The anti-pinch detection element (700) is any one of a micro switch, pressure sensor, capacitive sensor, infrared beam sensor, or resistive sensor.

11. The electric tabletop according to any one of claims 1 to 10, characterized in that, The tabletop assembly (100) includes an upper housing (110), a lower housing (130), and a tabletop frame (150); wherein the tabletop frame (150) is rotatably connected to the connecting rod assembly (200), the upper housing (110) is connected to one side of the tabletop frame (150), and the lower housing (130) is connected to the opposite side of the tabletop frame (150), or connected to the upper housing (110); the tabletop frame (150) and the upper housing (110) or the lower housing (130) enclose the mounting cavity.

12. The electric tabletop according to any one of claims 1 to 10, characterized in that, The electric tabletop (10) also includes a tilt angle detection element, which is disposed on the tabletop assembly (100) for electrical connection with the controller (400) and for detecting the tilt angle of the tabletop assembly (100) relative to the horizontal plane.

13. The electric tabletop according to any one of claims 1 to 10, characterized in that, The electric tabletop (10) further includes at least one of a heating pad (850), an ambient light (870), and a wireless charging assembly (830) disposed in the mounting cavity. The electric tabletop (10) also includes a third wiring harness (890) that passes through the linkage assembly (200) and extends from the linkage assembly (200) to the mounting cavity for electrically connecting the external power supply, the controller (400), and at least one of the heating pad (850), the ambient light (870), and the wireless charging assembly (830).

14. A type of seat, characterized in that, Includes a mounting bracket (30) and an electric tabletop (10) as claimed in any one of claims 1 to 13, wherein the linkage assembly (200) is connected to the mounting bracket (30), and the mounting bracket (30) is connected to the backrest of the seat.

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