Electric table backrest and car seat

By designing electric tables on car seats and using drive motors and linkage assemblies to automate operation, the problem of cumbersome traditional manual operation is solved, and the convenience of using the seat back table is improved.

CN224447587UActive Publication Date: 2026-07-03LEAR-DFM AUTOMOTIVE SEATING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LEAR-DFM AUTOMOTIVE SEATING CO LTD
Filing Date
2025-07-17
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Traditional car seat backrest tray tables are manually operated, which is cumbersome and difficult to use, especially when the interior space is limited and passengers are holding items with both hands.

Method used

Design an electric table for a seat backrest, which uses a drive motor to drive a linkage assembly to unfold and retract the electric table. The table includes an electric table, a backrest support, a linkage assembly, and a drive motor. The motor is controlled by a control button to achieve automated operation.

Benefits of technology

The electric table simplifies the use of the vehicle, making it easy to quickly unfold and store in situations where interior space is limited, thus improving ease of use.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224447587U_ABST
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Abstract

This utility model provides an electric seat backrest table and a car seat, relating to the technical field of car seat equipment. The electric seat backrest table includes an electric table, a backrest support, a linkage assembly, and a drive motor; the backrest support is mounted on the seat back, and the drive motor is mounted on the backrest support, with the output end of the drive motor connected to the active linkage of the linkage assembly; the electric table is connected to the backrest support via the linkage assembly. The car seat includes the electric seat backrest table, achieving the desired electric control effect for the seat back.
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Description

Technical Field

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

[0002] In current automotive interior configurations, seatback tray tables are receiving increasing attention as an important component for improving interior space utilization and passenger convenience. Traditional car seatback tray tables generally use manual operation, which has several limitations.

[0003] The manually operated seatback tray table requires passengers to manually unfold and fold it, which is cumbersome, especially when the space inside the vehicle is limited and passengers are holding items in both hands, which further increases the difficulty of operation. Utility Model Content

[0004] The purpose of this utility model is to provide an electric table for a seat back and a car seat, so as to alleviate the technical problems of manual control of the seat back in the prior art.

[0005] In a first aspect, this utility model provides an electric table for a seat backrest, including an electric table, a backrest support, a linkage assembly, and a drive motor.

[0006] The backrest bracket is mounted on the seat back, the drive motor is mounted on the backrest bracket, and the output end of the drive motor is connected to the active link drive of the linkage assembly.

[0007] The electric table is connected to the backrest support via the linkage assembly.

[0008] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the above-mentioned linkage assembly includes an active linkage and a passive linkage, and the passive linkage is located above the active linkage;

[0009] One end of the active linkage is connected to the drive motor, and the other end is pivotally connected to the electric tabletop;

[0010] One end of the passive linkage is pivotally connected to the backrest bracket, and the other end is pivotally connected to the electric tabletop.

[0011] The backrest support, the active linkage, the passive linkage, and the electric table form a four-bar linkage structure.

[0012] In conjunction with the first aspect, this utility model embodiment provides one possible implementation of the first aspect, wherein the aforementioned active connecting rod is provided with a wire receiving groove;

[0013] The extension direction of the groove is consistent with the extension direction of the active connecting rod.

[0014] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein wire harness protective sleeves are inserted at both ends of the above-mentioned active connecting rod, and the wire harness protective sleeves are set at an angle to the active connecting rod;

[0015] The wire harness protective sleeve is stationary relative to the active connecting rod.

[0016] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the end of the above-mentioned wire harness protective sleeve has an assembly plug, and the side wall of the assembly plug is provided with a wire harness clearance groove.

[0017] The active connecting rod has assembly slots at both ends that are adapted to the assembly plug, and the assembly slots are connected to the wire receiving groove.

[0018] In conjunction with the first aspect, this utility model embodiment provides one possible implementation of the first aspect, wherein the cross-section of the aforementioned assembly plug is U-shaped.

[0019] In conjunction with the first aspect, this utility model embodiment provides one possible implementation of the first aspect, wherein the drive motor is connected to the active connecting rod via a drive shaft;

[0020] The end of the drive shaft has a fitting plug that is adapted to the drive link.

[0021] In conjunction with the first aspect, this utility model embodiment provides one possible implementation of the first aspect, wherein the electric table is provided with a cup holder, and a pressure-sensitive sensor is provided inside the cup holder.

[0022] In conjunction with the first aspect, this utility model embodiment provides one possible implementation of the first aspect, wherein a wireless charger is provided inside the electric table, and a mobile phone charging dock corresponding to the wireless charger is provided on the electric table.

[0023] Secondly, this utility model embodiment provides an automobile seat, including an electric table on the seat back.

[0024] Beneficial effects:

[0025] This utility model provides an electric table for a seat back, including an electric table, a backrest support, a linkage assembly, and a drive motor; the backrest support is disposed on the seat back, the drive motor is disposed on the backrest support, and the output end of the drive motor is connected to the active linkage of the linkage assembly; the electric table is connected to the backrest support through the linkage assembly.

[0026] Specifically, during use, users can control the drive motor through the control button. The drive motor can drive the linkage assembly to swing, thereby rotating the electric table from a vertical position to a horizontal position. The drive motor completes the unfolding and folding of the electric table, making it convenient for users to use.

[0027] This utility model provides a car seat, including an electric table on the seat back. The car seat has the advantages described above compared to the prior art, which will not be elaborated further here. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 A schematic diagram showing the electric tabletop on the seat back when stored, as provided in an embodiment of this utility model.

[0030] Figure 2 A schematic diagram showing the unfolded electric tabletop on the seat back provided in an embodiment of this utility model;

[0031] Figure 3 An internal schematic diagram of the electric tabletop on the seat back provided in this embodiment of the utility model when unfolded;

[0032] Figure 4 A schematic diagram of the internal structure of the electric tabletop on the seat back when unfolded, as provided in an embodiment of this utility model;

[0033] Figure 5 A schematic diagram of the internal structure of the electric tabletop on the seat back when it is folded up, as provided in an embodiment of this utility model.

[0034] Figure 6 A schematic diagram showing the connection between the active linkage and the wiring harness protective sleeve in the electric tabletop for the seat back provided in this embodiment of the utility model;

[0035] Figure 7 A schematic diagram of the active linkage in the electric tabletop for the seat back provided in this embodiment of the utility model;

[0036] Figure 8 A schematic diagram of the wiring harness protective sleeve in the electric tabletop for the seat back provided in this embodiment of the utility model;

[0037] Figure 9 A schematic diagram of the drive shaft in the electric tabletop for the seat back provided in this embodiment of the utility model.

[0038] icon:

[0039] 100 - Electric tabletop; 110 - Cup holder; 120 - Wireless charger; 130 - Mobile phone charging stand; 140 - Mounting slot plate;

[0040] 200-backrest support;

[0041] 300 - Linkage assembly; 310 - Active link; 311 - Cable guide; 312 - Mounting slot; 320 - Passive link;

[0042] 400 - Drive motor; 410 - Drive shaft;

[0043] 500 - Wire harness protective sleeve; 510 - Assembly plug; 511 - Wire harness clearance slot;

[0044] 600 - Control Button;

[0045] 700-Wire Harness. Detailed Implementation

[0046] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0047] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0051] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, this embodiment provides an electric table for a seat back, including an electric table 100, a backrest support 200, a linkage assembly 300, and a drive motor 400; the backrest support 200 is disposed on the seat back, the drive motor 400 is disposed on the backrest support 200, and the output end of the drive motor 400 is connected to the active linkage 310 of the linkage assembly 300; the electric table 100 is connected to the backrest support 200 through the linkage assembly 300.

[0052] Specifically, during use, the user can control the drive motor 400 through the control button 600. The operation of the drive motor 400 can drive the linkage assembly 300 to swing, thereby causing the electric tabletop 100 to rotate from a vertical state to a horizontal state. The drive motor 400 completes the unfolding and folding of the electric tabletop 100, making it convenient for the user to use.

[0053] See Figures 1-9 As shown, in an optional embodiment, the linkage assembly 300 includes an active linkage 310 and a passive linkage 320, with the passive linkage 320 positioned above the active linkage 310. One end of the active linkage 310 is connected to the drive motor 400, and the other end is pivotally connected to the electric tabletop 100. One end of the passive linkage 320 is pivotally connected to the backrest bracket 200, and the other end is pivotally connected to the electric tabletop 100. The backrest bracket 200, the active linkage 310, the passive linkage 320, and the electric tabletop 100 form a four-bar linkage structure.

[0054] Specifically, the drive motor 400 is connected to the active link 310 via the drive shaft 410. When the drive motor 400 is working, it can drive the active link 310 to swing. The active link 310, the passive link 320 of the backrest bracket 200, and the electric table 100 form a four-bar linkage structure. The swing of the active link 310 can drive the electric table 100 to rotate.

[0055] The electric tabletop 100 is provided with a mounting slot 140. One end of both the active connecting rod 310 and the passive connecting rod 320 is pivotally connected to the mounting slot 140. When the electric tabletop 100 is laid flat, the ends of the active connecting rod 310 and the passive connecting rod 320 fall into the mounting slot 140, which will not affect the flat use of the electric tabletop 100.

[0056] See Figures 1-9 As shown, in an optional embodiment, the active link 310 is provided with a wire receiving groove 311; the extending direction of the wire receiving groove 311 is consistent with the extending direction of the active link 310.

[0057] Specifically, a wire receiving groove 311 is provided on the active linkage 310, and the extension direction of the wire receiving groove 311 is consistent with the extension direction of the active linkage 310, so that the power supply line or control line of the electronic components inside the electric table 100 can pass through the wire receiving groove 311 of the active linkage 310 and connect to the inside of the seat back.

[0058] In addition, a protective cover is provided at the wire receiving groove 311 of the active connecting rod 310. The protective cover can protect the wire harness 700 in the wire receiving groove 311 and prevent the wire harness 700 in the wire receiving groove 311 from being damaged.

[0059] The electric tabletop 100 is equipped with a cup holder 110, which contains a pressure sensor. The pressure sensor can detect whether there is a water cup or other structure inside the cup holder 110. When a heavy object or water cup is detected inside the cup holder 110, the drive motor 400 will not start and the electric tabletop 100 will not be driven to retract.

[0060] It should be noted that multiple pressure-sensitive sensors can be installed inside the electric tabletop 100. When a heavy object or a water cup is detected on the electric tabletop 100, the drive motor 400 will not start, thus achieving the anti-pinch function.

[0061] The electric table 100 is equipped with a wireless charger 120, and the electric table 100 is equipped with a mobile phone charging stand 130 corresponding to the wireless charger 120. The wiring harness 700 of the wireless charger 120 can be connected to the seat back through the wire receiving groove 311 of the active link 310.

[0062] See Figures 1-9As shown, in the optional embodiment, both ends of the active link 310 are provided with wire harness protective sleeves 500, and the wire harness protective sleeves 500 and the active link 310 are set at an angle; the wire harness protective sleeves 500 and the active link 310 are relatively stationary.

[0063] Specifically, a wire harness protective sleeve 500 is inserted at both ends of the active link 310. The wire harness protective sleeve 500 is set at an angle to the active link 310, and when the active link 310 is driven to rotate by the drive shaft 410, the wire harness protective sleeve 500 can rotate synchronously with the active link 310.

[0064] In addition, by setting the wire harness protection sleeve 500, when the active connecting rod 310 is driven to rotate by the drive motor 400, the wire harness protection sleeve 500 can protect the wire harness 700 and prevent the wire harness 700 from being clamped between the active connecting rod 310 and the mounting slot plate 140.

[0065] See Figures 1-9 As shown, in the optional embodiment, the end of the wire harness protective sleeve 500 has an assembly plug 510, and the side wall of the assembly plug 510 is provided with a wire harness clearance slot 511; the two ends of the active connecting rod 310 are provided with assembly slots 312 adapted to the assembly plug 510, and the assembly slots 312 are connected to the wire receiving slots 311.

[0066] The cross-section of the assembly plug 510 is U-shaped.

[0067] Specifically, the end of the wire harness protective sleeve 500 has an assembly plug 510, and the side wall of the assembly plug 510 has a wire harness clearance slot 511. When the wire harness protective sleeve 500 is inserted into the assembly slot 312 of the active connecting rod 310, the wire harness clearance slot 511 on the assembly plug 510 can correspond to the wire receiving slot 311 of the active connecting rod 310, ensuring the normal arrangement of the wire harness 700.

[0068] The drive shaft 410 has a mounting plug 510 at its end that is adapted to the active link 310. When the mounting plug 510 at the end of the drive shaft 410 is inserted into the mounting slot 312 at the end of the active link 310, the wire harness clearance slot 511 on the mounting plug 510 corresponds to the wire receiving slot 311 of the active link 310, so that when the drive shaft 410 is connected to the active link 310, the entire drive shaft 410 will not affect the wire harness 700. Furthermore, this design allows for the lightweighting of both the active link 310 and the passive link 320.

[0069] This embodiment provides a car seat, including an electric table on the seat back.

[0070] Specifically, the car seat provided in this embodiment has the advantages of the aforementioned electric table on the seat back compared to the prior art, which will not be elaborated here.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A seat back power table plate, characterized by, include: Electric tabletop (100), backrest support (200), linkage assembly (300) and drive motor (400); The backrest bracket (200) is mounted on the seat back, the drive motor (400) is mounted on the backrest bracket (200), and the output end of the drive motor (400) is connected to the active link (310) of the link assembly (300). The electric tabletop (100) is connected to the backrest bracket (200) via the linkage assembly (300).

2. The seat back power table plate of claim 1, wherein, The linkage assembly (300) includes an active link (310) and a passive link (320), with the passive link (320) located above the active link (310); One end of the active linkage (310) is connected to the drive motor (400) for transmission, and the other end is pivotally connected to the electric tabletop (100); One end of the passive link (320) is pivotally connected to the backrest bracket (200), and the other end is pivotally connected to the electric tabletop (100); The backrest support (200), the active link (310), the passive link (320), and the electric tabletop (100) form a four-bar linkage structure.

3. The electric table for the seat back as described in claim 2, characterized in that, The active connecting rod (310) is provided with a wire groove (311); The extension direction of the groove (311) is consistent with the extension direction of the active connecting rod (310).

4. The seat back power table plate of claim 3, wherein, Both ends of the active connecting rod (310) are provided with wire harness protective sleeves (500), and the wire harness protective sleeves (500) are set at an angle to the active connecting rod (310). The wire harness protective sleeve (500) is stationary relative to the active connecting rod (310).

5. The seat back power table plate of claim 4, wherein, The end of the wire harness protective sleeve (500) has an assembly plug (510), and the side wall of the assembly plug (510) is provided with a wire harness clearance slot (511). The active link (310) has assembly slots (312) at both ends that are adapted to the assembly plug (510), and the assembly slots (312) are connected to the wire receiving groove (311).

6. The seat back power table plate of claim 5, wherein, The cross-section of the assembly plug (510) is U-shaped.

7. The seat back power table plate of claim 5, wherein, The drive motor (400) is connected to the active connecting rod (310) via a drive shaft (410); The end of the drive shaft (410) has the mounting plug (510) adapted to the active link (310).

8. The seat back power table plate of claim 1, wherein, The electric tabletop (100) is provided with a cup holder (110), and a pressure sensor is provided inside the cup holder (110).

9. The seat back power table plate of claim 1, wherein, The electric table (100) is equipped with a wireless charger (120), and the electric table (100) is equipped with a mobile phone charging stand (130) corresponding to the wireless charger (120).

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