Automobile seat with small table board and automobile

Abstract

The invention belongs to the field of automobile seat accessories, and provides an automobile seat with a small table board and an automobile. The table board body is hinged to the backrest base; the driving assembly is located in the table board body and comprises a driving shaft, and the driving shaft is connected with the hinge assembly; the gyroscope gravity sensing module is positioned in the seat backrest; the angle sensor is located in the table board body and connected to the driving shaft; the controller is located in the seat backrest, and the gyroscope gravity sensing module, the angle sensor and the driving assembly are all electrically connected with the controller. By arranging the gyroscope gravity sensing module and the controller, the posture change of the table board can be sensed in real time, and the hinge is controlled to rotate through the driving assembly, so that the table board body is always kept in a horizontal state in a use state; therefore, the problem that a traditional small table board is prone to inclining when the angle of a seat backrest changes or a vehicle runs, and consequently placed articles slide off is solved, and using safety and convenience are improved.

Description

Technical Field

[0001] The invention belongs to the field of automobile seat accessories, and in particular relates to an automobile seat with a small table and a vehicle. Background Art

[0002] Existing seatback tray tables fail to maintain balance as the seatback angle is adjusted. As a result, when the front seat occupant adjusts their backrest, the tray table used by the rear passenger loses balance, causing items placed on the table to shift or even slide. Adjusting the backrest too far can even cause a collision with the rear passenger, creating a dangerous situation. Furthermore, when the car encounters a hilly road, the tray table loses balance and becomes unusable. Therefore, a technical solution is needed to address the problem of tray tables failing to maintain consistent balance in different operating environments. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the existing seat back small table cannot maintain balance as the seat back angle is adjusted, resulting in that when the front seat occupant adjusts the backrest, the small table used by the rear passengers will lose balance, causing the objects placed on the table to shift or even slide; when the backrest adjustment angle is too large, it may collide with the rear passengers, creating a dangerous situation; at the same time, when the car encounters a climbing road condition during driving, the table will also lose balance and cannot be used normally.

[0004] The technical solution adopted by the present invention to solve the above technical problems is: to provide a car seat with a small table, comprising: a backrest base connected to the seat back;

[0005] A table top body, which is hinged to the backrest base through a hinge assembly;

[0006] a drive assembly disposed in the table top body, comprising a drive shaft connected to the hinge assembly and configured to drive the table top body to rotate relative to the backrest base;

[0007] a gyroscope gravity sensor module disposed in the seat back, the gyroscope gravity sensor module being used to detect an angle between the seat back and a direction of gravity;

[0008] An angle sensor is disposed in the table top body and connected to the drive shaft, and is used to detect the current rotation angle of the drive shaft relative to a reference angle;

[0009] A controller is provided in the seat back, and the gyroscope gravity sensing module, the angle sensor and the drive assembly are all electrically connected to the controller; wherein,

[0010] The controller controls the movement of the drive assembly and drives the table top body to rotate according to the change of the angle detected by the gyroscope gravity sensor module and the rotation angle feedback by the angle sensor, so that the table top body always maintains a preset angle relative to the horizontal ground when in use.

[0011] In the above-mentioned car seat with a small table, the hinge assembly includes a first hinge and a second hinge, the two ends of the first hinge are respectively rotatably connected to the table body and the backrest base, and the two ends of the second hinge are respectively rotatably connected to the table body and the backrest base to form a four-bar structure.

[0012] In the above-mentioned car seat with a small table, the driving assembly includes a driving motor, one end of the driving shaft is transmission-connected to the driving motor, and the other end of the driving shaft is fixedly connected to one end of the first hinge.

[0013] In the above-mentioned car seat with a small table, the table body includes:

[0014] Upper cover;

[0015] A lower cover plate, which is connected to the upper cover plate via a snap fastener;

[0016] A table frame is provided between the upper cover and the lower cover, the drive motor is fixed to the table frame, one end of the drive shaft passes through the table frame and is fixedly connected to one end of the first hinge, and one end of the second hinge is rotatably connected to the table frame;

[0017] A storage shell is arranged on the upper cover and extends between the upper cover and the lower cover. The first hinge and the second hinge are movably inserted into the storage shell and are used to store the first hinge and the second hinge when the table board body is against the car seat.

[0018] In the above-mentioned car seat with a small table, the drive motor is arranged in the middle position of the table frame, and the drive assembly includes two drive shafts that are both transmission-connected to the drive motor. The two drive shafts are coaxially arranged, and each drive shaft corresponds to one hinge assembly.

[0019] In the above-mentioned car seat with a small table, the backrest base includes:

[0020] shell;

[0021] A base frame, which is arranged at one end of the shell away from the table body;

[0022] A fixed bracket is provided at one end of the shell facing the table top body and is connected to the base frame. One end of the first hinge and one end of the second hinge are both connected to the fixed bracket.

[0023] In the above-mentioned car seat with a small table, an accommodating cavity is provided at one end of the shell away from the car seat, and the accommodating cavity is used to accommodate the table body.

[0024] In the above-mentioned car seat with a small table, the controller includes a circuit board, the gyroscope gravity sensor module is integrated on the circuit board, and the drive motor is electrically connected to the circuit board via a wire.

[0025] The present invention solves the above technical problem and further provides a vehicle, comprising the above-mentioned car seat with a small table.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] (1) By setting up a gyroscope gravity sensor module, an angle sensor and a controller, it is possible to sense the changes in the angle of the seat back and the posture of the table board in real time, and drive the component to control the rotation of the hinge according to the rotation angle feedback from the angle sensor, so that the table board body always remains at a preset angle relative to the horizontal ground when in use, thereby solving the problem that the traditional small table board is prone to tilting when the seat back angle changes or when the vehicle is driving, causing the placed items to slip, and improving the safety and convenience of use.

[0028] (2) The upper cover and the lower cover are connected by snap fasteners, which facilitates assembly and subsequent maintenance; the table frame is used to install and fix the drive motor and hinge structure, further improving the overall structural strength; the design of the storage shell not only limits the swing range of the hinge, but also protects the hinge components in the storage state, thereby improving the aesthetics and safety of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a three-dimensional diagram of a car seat table with a small table when the table body is folded and stored in this embodiment.

[0030] Figure 2 yes Figure 1 A three-dimensional view of the center table when in use.

[0031] Figure 3 yes Figure 2 Exploded view in .

[0032] Figure 4 It is a three-dimensional view of the backrest base.

[0033] Figure 5This is a three-dimensional diagram of the drive assembly, hinge assembly, angle sensor, and storage case when connected.

[0034] In the figure, 100, backrest base; 110, outer shell; 120, base frame; 130, fixing bracket; 140, accommodating cavity; 200, table top body; 210, upper cover; 220, lower cover; 230, table top frame; 240, storage shell; 300, drive assembly; 310, drive motor; 320, drive shaft; 400, hinge assembly; 410, first hinge; 420, second hinge; 500, controller; 510, circuit board; 520, wire; 600, angle sensor. DETAILED DESCRIPTION

[0035] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0036] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] like Figures 1 to 5 As shown, a car seat with a small table in this embodiment includes: a backrest base 100, a table body 200, a drive assembly 300, a gyroscope gravity sensor module and a controller 500;

[0038] Specifically, the seat back includes a backrest base 100, which can be fixed and installed by screws or buckles; the table board body 200 is hinged to the backrest base 100 through a hinge assembly 400, so that the table board body 200 can rotate relative to the backrest base 100; the drive assembly 300 is arranged in the table board body 200, including a drive shaft 320, which is connected to the hinge assembly 400 and is used to drive the table board body 200 to rotate relative to the backrest base 100; the gyroscope gravity sensor module is arranged in the seat back, and the gyroscope gravity sensor module is used to detect the angle between the seat back and the direction of gravity; the angle sensor The device 600 is arranged in the table top body 200 and connected to the drive shaft 320, and is used to detect the current rotation angle of the drive shaft 320 relative to the reference angle; the controller 500 is arranged in the seat back, and the gyroscope gravity sensor module, the angle sensor and the drive assembly 300 are all electrically connected to the controller 500; wherein, the controller 500 controls the movement of the drive assembly 300 and drives the table top body 200 to rotate according to the change of the angle detected by the gyroscope gravity sensor module and the rotation angle feedback by the angle sensor 600, so that the table top body 200 always maintains a preset angle relative to the horizontal ground when in use.

[0039] In this solution, the preset angle that the table board body 200 maintains relative to the horizontal ground when in use usually refers to the angle when the table board body 200 is parallel to the horizontal ground. According to user needs, the table board body 200 can also be tilted downward at an angle of 0-20 degrees relative to the horizontal ground to facilitate the user to place a laptop computer for use. During use, when the table board body 200 is tilted downward from the horizontal ground, the user can tilt the table board body 200 downward from the horizontal ground to facilitate the user to place a laptop computer for use. Figure 1 The storage status shown switches to Figure 2 After entering the state shown, the gyroscope gravity sensor module installed in the car seat begins to detect the angle between the seat back in the initial position and the direction of gravity (for example, the angle between the seat back and the direction of gravity is 10 degrees). The angle sensor 600 detects the rotation angle of the drive shaft 320 when the table body 200 is in the horizontal position and defines this rotation angle as the reference angle.

[0040] When the user adjusts the seat back angle or the vehicle encounters a hill or other road condition during driving, the angle between the seat back and the direction of gravity will change (for example, when going uphill or adjusting the seat back angle, the angle increases; when going downhill, the angle decreases). At this time, the gyroscope gravity sensor module will detect the specific value of the angle change (for example, from 10° to 20° when going uphill, and from 10° to 0° when going downhill) and transmit the change value to the controller 500. The controller 500 generates a control instruction to the drive assembly 300 based on the angle change signal. In response to the control instruction, the drive assembly 300 drives the table top body 200 to rotate a corresponding angle relative to the backrest base 100 through the drive shaft 320, so that the table top body always remains in a horizontal state.

[0041] As the drive shaft 320 rotates, the angle sensor 600 detects the current rotation angle of the drive shaft 320 and feeds it back to the controller 500. The controller 500 dynamically adjusts the control signal of the drive assembly 300 based on the rotation angle feedback from the angle sensor 600, forming a closed-loop feedback mechanism. This improves the control system's accuracy and response speed in adjusting the tabletop's posture, achieving more stable and precise self-balancing control.

[0042] This solution utilizes a gyroscope gravity sensor module and controller 500 to detect changes in the tabletop's posture in real time. The drive assembly 300 controls the rotation of the hinge assembly 400, ensuring that the main body 200 remains horizontal. This design effectively addresses the problem of traditional tray tables prone to tilting when the seatback angle changes or the vehicle is in motion, potentially causing items to slip, significantly improving safety and convenience.

[0043] It's worth noting that the hinge assembly 400 includes two first hinges 410 and two second hinges 420. The two ends of the first hinges 410 are rotatably connected to the tabletop body 200 and the backrest base 100, respectively. The two ends of the second hinges 420 are rotatably connected to the tabletop body 200 and the backrest base 100, respectively, forming a four-bar linkage. This four-bar linkage design makes the connection between the tabletop body 200 and the backrest base 100 more stable, capable of withstanding greater loads, while ensuring smooth rotation of the tabletop body 200.

[0044] In order to achieve the driving of the table top body 200, the driving assembly 300 in this solution includes a driving motor 310, one end of the driving shaft 320 is transmission-connected to the driving motor 310, and the other end is fixedly connected to one end of the first hinge 410. The driving motor 310 can be a stepping motor or a servo motor, and has precise angle control capabilities. The driving assembly 300 drives the driving shaft 320 to rotate through the driving motor 310, and then controls the movement of the hinge assembly 400 to achieve precise adjustment of the table top angle. It has a simple structure, high transmission efficiency, and is easy to integrate into the interior of the table top without affecting the appearance design, thereby improving the compactness and practicality of the system.

[0045] The table top body 200 of this solution includes: an upper cover plate 210; a lower cover plate 220, which is connected to the upper cover plate 210 by a snap-fit; a table top frame 230, which is arranged between the upper cover plate 210 and the lower cover plate 220, and the drive motor 310 is fixed on the table top frame 230, one end of the drive shaft 320 passes through the table top frame 230 and is fixedly connected to one end of the first hinge 410, and one end of the second hinge 420 is rotatably connected to the table top frame 230; a storage shell 240, which is arranged on the upper cover plate 210 and extends between the upper cover plate 210 and the lower cover plate 220, and the first hinge 410 and the second hinge 420 are both movably inserted in the storage shell 240, and are used to store the first hinge 410 and the second hinge 420 when the table top body 200 is against the car seat.

[0046] The upper cover 210 and the lower cover 220 are connected by snap fasteners to form the outer shell 110 structure of the table top body 200. The table top frame 230 is arranged between the upper cover 210 and the lower cover 220 to support and fix the internal components. Preferably, the upper cover 210 is made of engineering plastic, and the surface is anti-slip treated to enhance stability during use. The lower cover 220 is also made of engineering plastic, and reinforcing ribs are provided on the inner side to improve the overall structural strength. The table top frame 230 is made of aluminum alloy material, which has the advantages of light weight and high strength. The storage shell 240 is made of nylon material, and its inner wall is smooth, which can effectively reduce the friction resistance generated when the hinge assembly 400 moves.

[0047] In this solution, the upper cover 210 and the lower cover 220 are connected by snap-fits, which facilitates assembly and subsequent maintenance; the table frame 230 is used to install and fix the drive motor 310 and the hinge assembly 400, further improving the overall structural strength; the design of the storage shell 240 not only limits the swing range of the hinge assembly 400, but also protects the hinge assembly 400 in the stored state, thereby improving the aesthetics and safety of the product.

[0048] In a preferred embodiment, the drive motor 310 is positioned centrally within the table frame 230. The drive assembly 300 includes two drive shafts 320, both of which are connected to the drive motor 310. The axes of the two drive shafts 320 are collinear, and each drive shaft 320 corresponds to a hinge assembly 400. This symmetrical design ensures uniform force distribution on the table body 200, resulting in smoother rotation. The drive motor 310 drives the two drive shafts 320 separately through a gear transmission mechanism.

[0049] In this solution, the backrest base 100 includes: a shell 110; a base frame 120, which is arranged at the end of the shell 110 of the backrest base 100 away from the table top body 200; a fixed bracket 130, which is arranged at the end of the shell 110 facing the table top body 200 and is connected to the base frame 120, and one end of the first hinge 410 and the second hinge 420 are both connected to the fixed bracket 130.

[0050] The outer shell 110 provides protection and aesthetics for the backrest base 100. The base frame 120, located at the end of the outer shell 110 away from the tabletop body 200, provides support and reinforcement. Preferably, the outer shell 110 is made of engineering plastic and spray-coated to enhance wear resistance and aesthetics. The base frame 120 is made of aluminum alloy, offering high strength and rigidity. The fixing bracket 130 is made of stainless steel to ensure the stability and durability of the hinge assembly 400 connection.

[0051] Furthermore, a receiving cavity 140 is provided at one end of the shell 110 away from the car seat, and the receiving cavity 140 is used to accommodate the table board body 200 .

[0052] Reference Figure 1 When the table board body 200 is not in use, it can be folded and stored in the accommodating cavity 140, saving space and improving convenience. The width and length of the accommodating cavity 140 are slightly larger than the size of the table board body 200, ensuring that the table board body 200 can be completely stored.

[0053] In this solution, the controller 500 includes a circuit board 510 , a gyroscope gravity sensor module is integrated on the circuit board 510 , and the drive motor 310 is electrically connected to the circuit board 510 via a wire 520 .

[0054] Circuit board 510 integrates electronic components such as a microprocessor, power management chip, and driver chip. Integrating the gyroscope gravity sensor module onto circuit board 510 of controller 500 simplifies wiring and improves system integration. Drive motor 310 is electrically connected to circuit board 510 via wire 520, ensuring stable signal transmission and improving the overall control system's response speed and operational reliability.

[0055] The operating principle of this embodiment is as follows: When the car seat tilts, the gyroscope gravity sensor module detects the change in the angle between the seat back and the direction of gravity and transmits this data to the controller 500. Based on the change in angle and the data from the angle sensor 600, the controller 500 calculates the required angle of adjustment and generates a control signal for the drive assembly 300. After receiving the control signal, the drive assembly 300 drives the drive shaft 320 via the drive motor 310, driving the hinge assembly 400, causing the table top body 200 to rotate relative to the backrest base 100, maintaining a horizontal position. This entire process is completed automatically, requiring no human intervention, providing the user with a stable, level tabletop.

[0056] This solution also provides a vehicle, comprising the above-mentioned car seat with a small table.

[0057] It should be noted that, in the present invention, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly defined. The terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0058] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0059] The specific embodiments described herein are merely illustrative of the spirit of the application. Various modifications or changes in the specific embodiments described herein can occur to those skilled in the art to which the application pertains without departing from the spirit of the application, and it is understood that such modifications or changes are to be considered as within the scope of the application as defined by the appended claims.

Claims

1. A car seat with a small table, characterized in that: include: A seat back, comprising a back base (100); A table top body (200) hinged to the backrest base (100) via a hinge assembly (400); a drive assembly (300) disposed in the table top body (200) and comprising a drive shaft (320), wherein the drive shaft (320) is connected to the hinge assembly (400) and is used to drive the table top body (200) to rotate relative to the backrest base (100); a gyroscope gravity sensor module disposed in the seat back, the gyroscope gravity sensor module being used to detect an angle between the seat back and a direction of gravity; An angle sensor (600) is disposed in the table top body (200) and connected to the drive shaft (320), and is used to detect the current rotation angle of the drive shaft (320) relative to a reference angle; A controller (500) is provided in the seat back, wherein the gyroscope gravity sensor module, the angle sensor and the drive assembly (300) are all electrically connected to the controller (500); wherein the controller (500) controls the movement of the drive assembly (300) and drives the table board body (200) to rotate according to the change of the angle detected by the gyroscope gravity sensor module and the rotation angle fed back by the angle sensor (600), so that the table board body (200) always maintains a preset angle relative to the horizontal ground when in use.

2. The car seat with a small table as claimed in claim 1, characterized in that: The hinge assembly (400) includes two first hinges (410) and two second hinges (420), the two ends of the first hinges (410) are respectively connected to the table top body (200) and the backrest base (100), and the two ends of the second hinges (420) are respectively connected to the table top body (200) and the backrest base (100), forming a four-bar linkage structure.

3. The car seat with a small table as claimed in claim 2, characterized in that: The driving assembly (300) includes a driving motor (310), one end of the driving shaft (320) is transmission-connected to the driving motor (310), and the other end of the driving shaft (320) is fixedly connected to one end of the first hinge (410).

4. The car seat with a small table as claimed in claim 3, characterized in that: The table top body (200) comprises: Upper cover plate (210); a lower cover plate (220) connected to the upper cover plate (210) via a snap fastener; A table frame (230) is provided between the upper cover (210) and the lower cover (220); the drive motor (310) is fixed to the table frame (230); one end of the drive shaft (320) passes through the table frame (230) and is fixedly connected to one end of the first hinge (410); and one end of the second hinge (420) is rotatably connected to the table frame (230); A storage shell (240) is provided on the upper cover (210) and extends between the upper cover (210) and the lower cover (220); the first hinge (410) and the second hinge (420) are both movably inserted into the storage shell (240) and are used to store the first hinge (410) and the second hinge (420) when the table top body (200) rests on the car seat.

5. The car seat with a small table as claimed in claim 4, characterized in that: The driving motor (310) is arranged in the middle position of the table frame (230), and the driving assembly (300) includes two driving shafts (320) both of which are transmission-connected to the driving motor (310). The two driving shafts (320) are coaxially arranged, and each driving shaft (320) corresponds to one hinge assembly (400).

6. The car seat with a small table as claimed in claim 4, characterized in that: The backrest base (100) comprises: housing (110); A base frame (120) is provided at one end of the housing (110) away from the table top body (200); A fixed bracket (130) is provided at one end of the housing (110) facing the table top body (200) and is connected to the base frame (120), and one end of the first hinge (410) and one end of the second hinge (420) are both connected to the fixed bracket (130).

7. The car seat with a small table as claimed in claim 6, characterized in that: An accommodating cavity (140) is provided at one end of the shell (110) away from the car seat, and the accommodating cavity (140) is used to accommodate the table board body (200).

8. The car seat with a small table as claimed in claim 3, characterized in that: The controller (500) includes a circuit board (510), the gyroscope gravity sensor module is integrated on the circuit board (510), and the drive motor (310) is electrically connected to the circuit board (510) via a wire (520).

9. A vehicle, characterized in that: The invention comprises a car seat with a small table as claimed in any one of claims 1 to 8.

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