Memory and adjustment device for an electrically powered seat of a motor vehicle

Abstract

The utility model relates to related technical field of car seat especially, a kind of memory and adjusting device of automobile electric seat, including support, the upper movable joint of support is set, the inside of support and set between cushion is provided with first adjusting assembly, the inside of one end of support is provided with second adjusting assembly, the surface of second adjusting assembly is provided with backrest, the side of support is provided with seat adjusting knob, the side of support is also provided with backrest adjusting knob.This kind of memory and adjusting device of automobile electric seat, by the setting of first adjusting assembly, second adjusting assembly, seat adjusting knob and backrest adjusting knob, can realize cushion front and back sliding, backrest inclination angle two-way fine adjustment and other multidimensional adjustment functions, can adapt to the individualized comfort needs of different body type passengers, while integrated memory storage and one-key calling function, greatly improve the convenience of use, adapt to the scene of multiple people alternately using car.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to a memory and adjustment device for an electric automotive seat. Background Technology

[0002] Car seats are the core components supporting occupants' bodies within a car cabin. They typically consist of a support base, seat cushion, backrest, and headrest, integrating functions such as mechanical fixation, angle adjustment, and safety protection. Some high-end seats also feature advanced designs such as electric adjustment, memory storage, ventilation, heating, and lumbar support. They not only need to conform to the curves of the human body through ergonomic design to ensure comfort during long journeys, but also need to work in conjunction with seat belts and airbags to provide stable support and safety protection for occupants during vehicle movement or sudden collisions. They must adapt to the needs of occupants of different body types and diverse travel scenarios. Since cars are often used by multiple occupants of different body types, and their comfort needs for seat position, angle, and other adjustment parameters vary, traditional seats require repeated manual adjustments, resulting in poor usability. Therefore, a memory and adjustment device for electric car seats is particularly needed.

[0003] Chinese patent CN216002289U, published on March 11, 2022, discloses an electric adjustment device for automobile seats. This device uses a lumbar groove designed on the seat back, which works in conjunction with a bracket, limit pin, electro-hydraulic rod, telescopic shaft, docking plate, and guide groove designed on a support base. The telescopic shaft of the electro-hydraulic rod extends and retracts, causing the docking plate to move. The docking plate then slides the seat cushion on the support base, increasing the angle between the seat cushion and the backrest, thus achieving electric adjustment of the seat. However, this electric adjustment device for automobile seats can only achieve unidirectional adjustment by increasing the angle between the seat cushion and the backrest through the electro-hydraulic rod. It lacks multi-dimensional adjustment capabilities such as seat forward / backward sliding and fine-tuning of the backrest tilt angle, failing to meet the personalized comfort needs of occupants of different body types. Utility Model Content

[0004] The purpose of this invention is to provide a memory and adjustment device for an electric car seat to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a memory and adjustment device for an electric car seat, comprising a support, a seat cushion movably connected above the support, a first adjustment component disposed between the interior of the support and the seat cushion, a second adjustment component disposed inside one end of the support, a backrest disposed on the surface of the second adjustment component, a seat adjustment button disposed on the side of the support, and a backrest adjustment button disposed on the side of the support. The first adjustment component includes a transmission groove, which is formed inside the support. A first motor is installed in the middle of the inner end of the transmission groove. A lead screw is connected to the output end of the first motor. A guide rod is connected to the inner end of the transmission groove. A slider is slidably connected to the surface of both the lead screw and the guide rod. A connecting rod is connected to the side of the slider. A limit block is connected to the other side of the slider. A fixed seat is connected to the inner side of the transmission groove. A limit groove is formed on the inner side of the fixed seat. A guide rail is formed through the surface of the support. The top end of the slider is fixedly connected to the bottom end of the seat cushion through the guide rail.

[0006] Preferably, the lead screw and the guide rod are arranged in parallel, and the slider is threadedly connected to the lead screw and slidably engaged with the guide rod.

[0007] Preferably, the limiting block and the limiting groove form a sliding fit, and the outer wall of the limiting block is in close contact with the inner wall of the limiting groove.

[0008] Preferably, the width of the guide rail is adapted to the thickness of the slider, and the length of the guide rail is consistent with the length of the limiting groove, so that the guide rail forms a guiding constraint on the top of the slider.

[0009] Preferably, the second adjustment component includes a second motor, which is installed inside the support. The output end of the second motor is connected to a first transmission wheel. A transmission chain is meshed with the outer wall of the first transmission wheel. The inner wall of the other end of the transmission chain is fitted with a second transmission wheel. A fixed lug is fixedly connected to the upper side of one end of the support. The second transmission wheel is rotatably connected inside the fixed lug. A transmission shaft is fixedly connected to one end of the second transmission wheel. A rotating sleeve is fixedly connected to the outer wall of the transmission shaft. Connecting lugs are connected to the upper sides of the rotating sleeve. The bottom end of the backrest is fixedly connected to the top end of the connecting lug.

[0010] Preferably, the rotating sleeve and the transmission shaft are an integrated structure, and the connecting lugs are symmetrically welded to the upper sides of the rotating sleeve.

[0011] Preferably, the seat adjustment knob is electrically connected to the first adjustment component, the backrest adjustment knob is electrically connected to the second adjustment component, and the seat adjustment knob and the backrest adjustment knob are integrated with a memory storage button, which is electrically connected to the control module built into the seat.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the memory and adjustment device of the electric car seat, through the setting of the first adjustment component, the second adjustment component, the seat adjustment button and the backrest adjustment button, can realize multi-dimensional adjustment functions such as the forward and backward sliding of the seat cushion and the bidirectional fine adjustment of the backrest tilt angle, which can adapt to the personalized comfort needs of passengers of different body types. At the same time, it integrates memory storage and one-button recall functions, which greatly improves the convenience of use and is suitable for multi-person alternating car use scenarios. Attached Figure Description

[0013] Figure 1 This is a side view of the structure of the present utility model; Figure 2 This is a schematic diagram of the internal structure of the support of this utility model; Figure 3 This is a schematic diagram of the structure of the first adjustment component of this utility model; Figure 4 This is a schematic diagram of the structure of the second adjustment component of this utility model.

[0014] In the diagram: 1. Support; 2. Seat cushion; 3. First adjustment assembly; 301. Transmission groove; 302. First motor; 303. Lead screw; 304. Guide rod; 305. Slider; 306. Connecting rod; 307. Limiting block; 308. Fixed seat; 309. Limiting groove; 310. Guide rail; 4. Second adjustment assembly; 401. Second motor; 402. First transmission wheel; 403. Transmission chain; 404. Second transmission wheel; 405. Fixed ear plate; 406. Transmission shaft; 407. Rotating sleeve; 408. Connecting ear plate; 5. Backrest; 6. Seat adjustment knob; 7. Backrest adjustment knob. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-4 This utility model provides a technical solution: a memory and adjustment device for an electric car seat, including a support 1, a seat cushion 2 movably connected to the top of the support 1, a first adjustment component 3 disposed between the inside of the support 1 and the seat cushion 2, a second adjustment component 4 disposed inside one end of the support 1, a backrest 5 disposed on the surface of the second adjustment component 4, a seat adjustment button 6 disposed on the side of the support 1, and a backrest adjustment button 7 disposed on the side of the support 1. The first adjustment component 3 includes a transmission groove 301, which is located inside the support 1. A first motor 302 is installed at the middle of the inner end of the transmission groove 301. A lead screw 303 is connected to the output end of the first motor 302. A guide rod 304 is connected to the inner end of the transmission groove 301. Slider blocks 305 are slidably connected to the surfaces of both the lead screw 303 and the guide rod 304. A connecting rod 306 is connected to the side of the slider 305. A limit block 307 is connected to the other side of the slider 305. A fixed seat 308 is connected to the inner side of the transmission groove 301. A limit groove 309 is formed on the inner side of the fixed seat 308. A guide rail 310 is provided through the surface of the support 1. The top end of the slider 305 is fixedly connected to the bottom end of the seat cushion 2 through the guide rail 310. The configuration allows occupants to adjust the seat cushion 2's fore-aft position by operating the seat adjustment knob 6 on the side of the support 1. This command is transmitted to the first motor 302 of the first adjustment assembly 3, causing the first motor 302 to start and drive the lead screw 303 at its output end to rotate forward or reverse, providing power for the adjustment. During power transmission, since the slider 305 and the lead screw 303 are threadedly connected, the rotational motion of the lead screw 303 is converted into the axial linear motion of the slider 305 through thread engagement. Simultaneously, the slider 305 is fitted onto the surface of the guide rod 304 and forms a sliding fit with it. The guide rod 304 precisely constrains the movement trajectory of the slider 305, preventing it from rotating synchronously with the lead screw 303 and ensuring that it only moves along the guide rod 304. The axial direction of the 4 slides smoothly, and the connecting rod 306 connected to the side of the slider 305 works synchronously. Since the two ends of the connecting rod 306 are respectively rotatably connected to two symmetrically distributed sliders 305, when one slider 305 moves under the drive of the lead screw 303, it will drive the other slider 305 to move synchronously and in the same direction along the guide rod 304 through the connecting rod 306, so that the two sliders 305 always maintain consistent movement and provide balanced support for the seat cushion 2. Entering the motion execution stage, the top of the slider 305 passes through the guide rail 310 on the surface of the support 1 and is fixedly connected to the bottom of the seat cushion 2. The axial movement of the slider 305 will directly drive the seat cushion 2 to move synchronously along the direction of the guide rail 310, realizing the adjustment of the front and back position of the seat cushion 2. The width of the guide rail 310 and the slider 305 are the same. The thickness of the guide rail 305 is matched to the thickness of the slide block 305, further strengthening the guiding constraint on the top of the slide block 305 and ensuring that the seat cushion 2 will not shift or wobble during movement, thus improving adjustment stability and riding comfort. Throughout the adjustment process, the safety limiting structure plays a protective role. The limiting block 307 connected to the other side of the slide block 305 is embedded in the limiting groove 309 of the fixing seat 308 inside the transmission groove 301, forming a sliding fit. When the slide block 305 moves to its limit position, the limiting block 307 contacts the end of the limiting groove 309, mechanically restricting the slide block 305 from continuing to move and preventing rigid collision between the slide block 305 and the inner wall of the transmission groove 301, which could damage the components. Simultaneously, the length of the limiting groove 309 is consistent with the length of the guide rail 310.This ensures that the adjustment range of the seat cushion 2 is precisely limited within a safe range, guaranteeing safety during the adjustment process. When the occupant completes the adjustment or triggers the memory button, the first motor 302 stops operating, and the slider 305 maintains its current position under the self-locking action of the lead screw 303, allowing the seat cushion 2 to stably remain in the adjusted position, thus completing the entire adjustment process.

[0017] Furthermore, the lead screw 303 and the guide rod 304 are arranged in parallel, and the slider 305 is threadedly connected to the lead screw 303 and slidably engaged with the guide rod 304. Through the arrangement of the lead screw 303, the guide rod 304 and the slider 305, the parallel structure ensures that the slider 305 is subjected to balanced force, the threaded connection accurately converts the rotational motion of the lead screw 303 into the linear motion of the slider 305, and the sliding engagement restricts the rotational tendency of the slider 305. The two work together to ensure that the slider 305 moves smoothly along a fixed trajectory and avoids jamming or deviation during the adjustment process.

[0018] Furthermore, the limiting block 307 and the limiting groove 309 form a sliding fit, and the outer wall of the limiting block 307 is tightly fitted with the inner wall of the limiting groove 309. Through the setting of the limiting block 307 and the limiting groove 309, the tight fit prevents the limiting block 307 from shaking in the groove. The sliding fit provides trajectory constraint when the slider 305 moves. At the same time, the length of the limiting groove 309 is consistent with the length of the guide rail 310, so that the adjustment stroke of the seat cushion 2 is limited within a safe range, further enhancing the safety of the adjustment process.

[0019] Furthermore, the width of the guide rail 310 is adapted to the thickness of the slider 305, and the length of the guide rail 310 is consistent with the length of the limiting groove 309. The guide rail 310 forms a guiding constraint on the top of the slider 305. Through the setting of the guide rail 310, the adapted width prevents the top of the slider 305 from swaying left and right during movement. The length consistent with the limiting groove 309 simultaneously limits the adjustment stroke. Together with the constraint of the bottom of the slider 305 by the guide rod 304, a double upper and lower guide is formed to ensure that the seat cushion 2 moves stably and smoothly, improving the adjustment accuracy and riding experience.

[0020] Furthermore, the second adjustment component 4 includes a second motor 401, which is installed inside the support 1. The output end of the second motor 401 is connected to a first transmission wheel 402. A transmission chain 403 is meshed with the outer wall of the first transmission wheel 402. The inner wall of the other end of the transmission chain 403 is fitted with a second transmission wheel 404. A fixed ear plate 405 is fixedly connected to the upper side of one end of the support 1. The second transmission wheel 404 is rotatably connected inside the fixed ear plate 405. A transmission shaft 406 is fixedly connected to one end of the second transmission wheel 404. A rotating sleeve 407 is fixedly connected to the outer wall of the transmission shaft 406. Connecting ear plates 408 are connected to the upper sides of the rotating sleeve 407. The bottom end of the backrest 5 is fixedly connected to the top end of the connecting ear plate 408. Through the setting of the second adjustment component 4, when the occupant operates the backrest adjustment button 7 on the side of the support 1 to send an adjustment command, the second motor 401 starts according to the command and drives the first transmission wheel 402 at the output end. The first drive wheel 402 transmits power to the second drive wheel 404 through the meshing drive chain 403, causing the second drive wheel 404 to rotate synchronously under the support of the fixed ear plate 405. The drive shaft 406 at one end of the second drive wheel 404 rotates together with it, thereby driving the rotating sleeve 407 fixed on the outer wall to rotate. The connecting ear plates 408 on both sides of the rotating sleeve 407 rotate synchronously. Since the bottom end of the backrest 5 is fixed to the top end of the connecting ear plate 408, the rotation of the connecting ear plate 408 directly drives the backrest 5 to rotate around the axis of the drive shaft 406, realizing the backrest 5 to tilt backward or forward. During the entire transmission process, the first drive wheel 402 and the second drive wheel 404 maintain synchronous movement through the drive chain 403, ensuring that the backrest 5 is adjusted smoothly. The fixed ear plate 405 provides stable support for the second drive wheel 404 and the drive shaft 406, avoiding deviation during rotation, thereby accurately realizing the angle adjustment of the backrest 5 and meeting the riding comfort needs of the occupants.

[0021] Furthermore, the rotating sleeve 407 and the transmission shaft 406 are an integrated structure, and the connecting ear plates 408 are symmetrically welded to the upper sides of the rotating sleeve 407. Through the arrangement of the transmission shaft 406, the rotating sleeve 407 and the connecting ear plates 408, the integrated structure ensures that the rotational force of the transmission shaft 406 can be completely and losslessly transmitted to the rotating sleeve 407, avoiding loosening or energy loss during the transmission process. The symmetrically welded connecting ear plates 408 ensure that the backrest 5 can be evenly stressed when flipping, preventing the backrest from tilting or being damaged due to excessive force on one side, thereby ensuring the stability of the backrest angle adjustment and the robustness of the structure.

[0022] Furthermore, the seat adjustment knob 6 is electrically connected to the first adjustment component 3, and the backrest adjustment knob 7 is electrically connected to the second adjustment component 4. The seat adjustment knob 6 and the backrest adjustment knob 7 are integrated with memory storage buttons, which are electrically connected to the control module built into the seat. Through the settings of the seat adjustment knob 6 and the backrest adjustment knob 7, not only can the fore-and-aft position of the seat cushion and the tilt angle of the backrest be manually adjusted in real time to adapt to the immediate comfort needs of different occupants, but also, through the integrated memory storage buttons, occupants can store their satisfactory seat adjustment parameters in the control module, which greatly improves the convenience of use, especially suitable for scenarios where multiple people alternate using the same vehicle.

[0023] Working principle: When the occupant needs to adjust the seat, such as adjusting the fore-and-aft position of the seat cushion 2, the seat adjustment knob 6 on the side of the operating support 1 sends a command. The command is transmitted to the first motor 302 of the first adjustment component 3, causing it to drive the lead screw 303 to rotate forward or reverse. Since the slider 305 is threadedly connected to the lead screw 303 and slides with the guide rod 304, the rotational motion of the lead screw 303 is converted into linear motion of the slider 305 along the axial direction of the guide rod 304. The slider 305 drives another slider 305 through the connecting rod 306. 5. Synchronous movement: The top of the cushion 2 moves smoothly along the guide rail 310. During adjustment, the limiting block 307 of the slider 305 slides along the limiting groove 309 of the fixed seat 308, limiting the stroke together with the guide rail 310 to avoid collision. After adjustment, the screw 303 self-locks to stabilize the cushion 2. If the backrest 5 angle needs to be adjusted, the backrest adjustment knob 7 is operated to trigger the second adjustment component 4. The second motor 401 drives the first transmission wheel 402 to rotate, which in turn drives the second transmission wheel 40 through the transmission chain 403. 4. The second transmission wheel 404 rotates within the fixed ear plate 405, driving the transmission shaft 406 and the integrated rotating sleeve 407 to rotate synchronously. The connecting ear plates 408 symmetrically welded on both sides of the rotating sleeve 407 drive the backrest 5 to rotate around the transmission shaft 406, realizing the adjustment of the backrest or the forward tilt. When the passenger finds a comfortable sitting position, they press the memory storage button integrated on the seat adjustment button 6 or the backrest adjustment button 7. The connected control module will record and store the operating parameters of the first motor 302 and the second motor 401 at this time. When the same passenger uses it later, they can trigger the corresponding memory button with one click. The control module will then drive the first adjustment component 3 and the second adjustment component 4 to operate according to the stored parameters, so that the seat cushion 2 and the backrest 5 can quickly return to the preset position. The whole process, through the precise cooperation of the mechanical structure and the intelligent linkage of the electronic control system, not only ensures the stability and safety of the adjustment, but also improves the convenience of use through the memory function, adapting to the scenario of multiple people taking turns using the car. This completes the use process of a memory and adjustment device for an electric car seat.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A memory and adjustment device for an electric car seat, comprising a support (1), characterized in that: A seat cushion (2) is movably connected above the support (1). A first adjustment component (3) is provided between the inside of the support (1) and the seat cushion (2). A second adjustment component (4) is provided inside one end of the support (1). A backrest (5) is provided on the surface of the second adjustment component (4). A seat adjustment button (6) is provided on the side of the support (1). A backrest adjustment button (7) is also provided on the side of the support (1). The first adjustment component (3) includes a transmission groove (301), which is located inside the support (1). A first motor (302) is installed in the middle of the inner end of the transmission groove (301). A lead screw (303) is connected to the output end of the first motor (302). A guide rod (304) is connected to the inner end of the transmission groove (301). A slider (305) is slidably connected to the surfaces of the lead screw (303) and the guide rod (304). A connecting rod (306) is connected to the side of the slider (305). A limit block (307) is connected to the other side of the slider (305). A fixed seat (308) is connected to the inner side of the transmission groove (301). A limit groove (309) is opened in the inner side of the fixed seat (308). A guide rail (310) is provided through the surface of the support (1). The top end of the slider (305) is fixedly connected to the bottom end of the cushion (2) through the guide rail (310).

2. The memory and adjustment device for an electric car seat according to claim 1, characterized in that: The lead screw (303) and the guide rod (304) are arranged in parallel, and the slider (305) is threadedly connected to the lead screw (303) and slidably engaged with the guide rod (304).

3. The memory and adjustment device for an electric car seat according to claim 1, characterized in that: The limiting block (307) and the limiting groove (309) form a sliding fit, and the outer wall of the limiting block (307) is in close contact with the inner wall of the limiting groove (309).

4. The memory and adjustment device for an electric car seat according to claim 1, characterized in that: The width of the guide rail (310) is adapted to the thickness of the slider (305), and the length of the guide rail (310) is consistent with the length of the limiting groove (309). The guide rail (310) forms a guiding constraint on the top of the slider (305).

5. The memory and adjustment device for an electric car seat according to claim 1, characterized in that: The second adjustment component (4) includes a second motor (401), which is installed on the inner side of the support (1). The output end of the second motor (401) is connected to a first transmission wheel (402). The outer wall of the first transmission wheel (402) is meshed with a transmission chain (403). The inner wall of the other end of the transmission chain (403) is fitted with a second transmission wheel (404). A fixed ear plate (405) is fixedly connected to the upper side of one end of the support (1). The second transmission wheel (404) is rotatably connected inside the fixed ear plate (405). A transmission shaft (406) is fixedly connected to one end of the second transmission wheel (404). A rotating sleeve (407) is fixedly connected to the outer wall of the transmission shaft (406). Connecting ear plates (408) are connected to the upper sides of the rotating sleeve (407). The bottom end of the backrest (5) is fixedly connected to the top end of the connecting ear plate (408).

6. The memory and adjustment device for an electric car seat according to claim 5, characterized in that: The rotating sleeve (407) and the transmission shaft (406) are an integrated structure, and the connecting ear plates (408) are symmetrically welded on the upper sides of the rotating sleeve (407).

7. The memory and adjustment device for an electric car seat according to claim 1, characterized in that: The seat adjustment knob (6) is electrically connected to the first adjustment component (3), the backrest adjustment knob (7) is electrically connected to the second adjustment component (4), and the seat adjustment knob (6) and the backrest adjustment knob (7) are integrated with a memory storage button, which is electrically connected to the control module built into the seat.

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