Seat adjustment device, seat

Abstract

This utility model discloses a seat adjustment device and a seat, relating to the field of seat technology. The seat adjustment device includes a laser displacement sensor assembly, a control unit, and a support actuator. The laser displacement sensor assembly includes a laser and a photosensitive component. The laser beam emitted by the laser is directed towards the support component of the seat. The photosensitive component is positioned in the optical path of the reflected laser. The control unit connects the laser displacement sensor assembly and the support actuator, which is drively connected to the support component. The reflected laser is the laser beam obtained by the support component reflecting the laser beam emitted by the laser. Therefore, precise adjustment of the seat can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of seating technology, and in particular to a seat adjustment device and a seat. Background Technology

[0002] In related technologies, the seats are adjusted primarily by detecting their status using devices such as motor encoders, Hall effect sensors, and cable-operated displacement sensors. However, these devices have significant errors in detecting the seat's status, resulting in large adjustment errors that fail to meet user needs. Utility Model Content

[0003] The present invention aims to at least partially solve one of the technical problems in the related art. Therefore, the first objective of the present invention is to provide a seat adjustment device to achieve seat adjustment with low error.

[0004] The second objective of this invention is to provide a type of chair.

[0005] To achieve the above objectives, the first aspect of this utility model provides a seat adjustment device, characterized in that the device includes a laser displacement sensor assembly, a control unit, and a support actuator. The laser displacement sensor assembly includes a laser and a photosensitive component. The laser beam emitted by the laser is directed towards the support component of the seat. The photosensitive component is disposed in the optical path of the reflected laser. The control unit is connected to the laser displacement sensor assembly and the support actuator. The support actuator is drivenly connected to the support component. The reflected laser is the laser beam obtained by the support component reflecting the laser beam emitted by the laser.

[0006] In addition, the seat adjustment device according to this utility model may also have the following additional technical features:

[0007] In some examples, the support component includes a lumbar support, and the support actuator includes a lumbar support adjustment motor and a lumbar support transmission mechanism. The lumbar support adjustment motor is connected to the control unit and to the drive end of the lumbar support transmission mechanism, and the lumbar support is connected to the actuator end of the lumbar support transmission mechanism.

[0008] In some examples, the support component includes a backrest, and the support actuator includes a backrest tilt motor and a backrest transmission mechanism. The backrest tilt motor is connected to the control unit and to the drive end of the backrest transmission mechanism, and the backrest is connected to the actuator end of the backrest transmission mechanism.

[0009] In some examples, the support component includes a headrest, and the support actuator includes a headrest adjustment motor and a headrest transmission mechanism. The headrest adjustment motor is connected to the control unit and to the drive end of the headrest transmission mechanism, and the headrest is connected to the actuator end of the headrest transmission mechanism.

[0010] In some examples, the laser displacement sensor assembly includes a lumbar support sensor, which includes a first laser and a first photosensitive component. The laser beam emitted by the first laser is directed toward the lumbar support plate of the lumbar support. The first photosensitive component is disposed in the optical path of a first reflected laser, wherein the first reflected laser is the laser beam emitted by the first laser reflected by the lumbar support plate.

[0011] In some examples, the laser displacement sensor assembly includes a backrest sensor, which includes a second laser and a second photosensitive component. The laser beam emitted by the second laser is directed towards a laser reflector, and the second photosensitive component is disposed in the optical path of the second reflected laser. The laser reflector is disposed on the outer surface of the backrest rotation axis, and the second reflected laser is the laser beam emitted by the second laser reflected by the laser reflector.

[0012] In some examples, the laser displacement sensor assembly includes a headrest sensor, which includes a third laser and a third photosensitive component. The laser beam emitted by the third laser is directed toward the headrest bar of the headrest. The third photosensitive component is disposed in the optical path of a third reflected laser, wherein the third reflected laser is the laser beam emitted by the third laser reflected by the headrest bar.

[0013] In some examples, the device further includes a human-computer interaction device connected to the control unit.

[0014] In some examples, the device also includes a temperature sensor connected to the control unit.

[0015] To achieve the above objectives, a second aspect of this utility model provides a seat, including the aforementioned seat adjustment device.

[0016] The seat adjustment device and seat according to this utility model include a laser displacement sensor assembly, a control unit, and a support actuator. The laser displacement sensor assembly includes a laser and a photosensitive component. The laser beam emitted by the laser is directed towards the support component of the seat. The photosensitive component is disposed in the optical path of the reflected laser. The control unit is connected to the laser displacement sensor assembly and the support actuator. The support actuator is drivenly connected to the support component. The reflected laser is the laser beam obtained by the support component reflecting the laser beam emitted by the laser. Therefore, precise adjustment of the seat can be achieved.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] Figure 1 This is a structural block diagram of the seat adjustment device according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the structure of a seat adjustment device according to an embodiment of the present invention;

[0020] Figure 3 This is a structural block diagram of the seat according to an embodiment of the present utility model. Detailed Implementation

[0021] The following description of a seat adjustment device and a seat according to embodiments of the present invention is based on the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described with reference to the accompanying drawings are exemplary and should not be construed as limiting the present invention.

[0022] Figure 1 This is a structural block diagram of the seat adjustment device according to an embodiment of the present utility model.

[0023] like Figure 1 As shown, the seat adjustment device 1000 includes a laser displacement sensor assembly 301, a control unit 205, and a support actuator 103. The laser displacement sensor assembly 301 includes a laser and a photosensitive component. The laser beam emitted by the laser is directed towards the support assembly 400 of the seat. The photosensitive component is disposed in the optical path of the reflected laser. The control unit 205 connects the laser displacement sensor assembly 301 and the support actuator 103. The support actuator 103 is connected to the support assembly 400 in a transmission manner. The reflected laser is the laser obtained by the support assembly 400 reflecting the laser beam emitted by the laser.

[0024] Specifically, the seat adjustment device 1000 includes a laser displacement sensor assembly 301, which includes multiple laser displacement sensors, each of which includes a laser and a photosensitive component.

[0025] The laser beam emitted by the laser is directed at the support component 400 of the seat. The photosensitive component of the laser displacement sensor receives the laser reflected by the support component 400. The laser displacement sensor generates a signal based on the reception result of the photosensitive component and sends the signal to the control unit 205. The control unit 205 drives the support actuator 103 to adjust the support component 400 of the seat according to the signal, thereby adjusting the seat.

[0026] Therefore, by obtaining the seat's state through the laser displacement sensor assembly 301 installed on the seat, the seat's state can be accurately identified, thereby enabling precise adjustment of the seat.

[0027] In some embodiments of this utility model, the support component 400 includes a lumbar support, and the support actuator 103 includes a lumbar support adjustment motor and a lumbar support transmission mechanism. The lumbar support adjustment motor is connected to the control unit 205 and to the drive end of the lumbar support transmission mechanism, and the lumbar support is connected to the actuator end of the lumbar support transmission mechanism.

[0028] Specifically, the seat support assembly 400 includes a lumbar support for supporting the user's lower back, and the seat support actuator 103 includes a lumbar support adjustment motor and a lumbar support transmission mechanism for controlling the lumbar support. The output end of the control unit 205 is connected to the input end of the lumbar support adjustment motor, and the output end of the lumbar support adjustment motor is connected to the drive end of the lumbar support transmission mechanism.

[0029] The control unit 205 drives the lumbar support adjustment motor according to the signal output by the laser displacement sensor assembly 301, so that the lumbar support adjustment motor drives the lumbar support transmission mechanism to adjust the lumbar support.

[0030] In some embodiments of this utility model, the support component 400 includes a backrest, and the support actuator 103 includes a backrest tilt motor and a backrest transmission mechanism. The backrest tilt motor is connected to the control unit 205 and to the drive end of the backrest transmission mechanism, and the backrest is connected to the actuator end of the backrest transmission mechanism.

[0031] Specifically, the seat support assembly 400 includes a backrest for supporting the user's back, and the seat support actuator 103 includes a backrest tilt motor and a backrest transmission mechanism for controlling the backrest. The output of the control unit 205 is connected to the input of the backrest tilt motor, and the output of the backrest tilt motor is connected to the drive end of the backrest transmission mechanism.

[0032] The control unit 205 drives the backrest tilt motor according to the signal output by the laser displacement sensor assembly 301, so that the backrest tilt motor drives the backrest transmission mechanism to adjust the backrest.

[0033] In some embodiments of this utility model, the support component 400 includes a headrest, and the support actuator 103 includes a headrest adjustment motor and a headrest transmission mechanism. The headrest adjustment motor is connected to the control unit 205 and to the drive end of the headrest transmission mechanism, and the headrest is connected to the actuator end of the headrest transmission mechanism.

[0034] Specifically, the seat support assembly 400 includes a headrest for supporting the user's head, and the seat support actuator 103 includes a headrest adjustment motor and a headrest transmission mechanism for controlling the headrest. The output of the control unit 205 is connected to the input of the headrest adjustment motor, and the output of the headrest adjustment motor is connected to the drive end of the headrest transmission mechanism.

[0035] The control unit 205 drives the headrest adjustment motor according to the signal output by the laser displacement sensor assembly 301, so that the headrest adjustment motor drives the headrest transmission mechanism to adjust the headrest.

[0036] In some embodiments of this utility model, the laser displacement sensor assembly 301 includes a lumbar support sensor, which includes a first laser, and the laser beam emitted by the first laser is directed toward the lumbar support plate of the lumbar support.

[0037] Specifically, the laser displacement sensor assembly 301 includes a plurality of laser displacement sensors, among which a lumbar support sensor is provided. The lumbar support sensor includes a first laser and a first photosensitive component. The laser beam emitted by the first laser is directed towards the lumbar support plate of the lumbar support. The first photosensitive component is disposed in the optical path of the first reflected laser. The first reflected laser is the laser beam obtained by the lumbar support plate reflecting the laser beam emitted by the first laser.

[0038] At this moment, the laser beam emitted by the first laser is directed at the lumbar support plate, and the first photosensitive component of the lumbar support sensor receives the laser reflected by the lumbar support plate to obtain the position of the lumbar support plate.

[0039] This allows for accurate status recognition of the lumbar support.

[0040] In some embodiments of this utility model, the laser displacement sensor assembly 301 includes a backrest sensor, which includes a second laser and a second photosensitive component. The laser beam emitted by the second laser points to a laser reflector, and the second photosensitive component is disposed in the optical path of the second reflected laser. The laser reflector is disposed on the outer surface of the backrest rotation shaft, and the second reflected laser is the laser beam emitted by the second laser reflected by the laser reflector.

[0041] Specifically, the laser displacement sensor assembly 301 includes a plurality of laser displacement sensors, among which a backrest sensor is provided. The backrest sensor includes a second laser, and the laser beam emitted by the second laser is directed toward a laser reflector disposed on the outer surface of the backrest rotation shaft.

[0042] At this time, the laser beam emitted by the first laser is directed towards the laser reflector. The second photosensitive component of the backrest sensor receives the laser reflected by the laser reflector and obtains the rotation angle of the backrest rotation axis, thereby obtaining the state of the backrest based on the rotation angle of the backrest rotation axis.

[0043] This allows for accurate status recognition of the lumbar support.

[0044] In some embodiments of this utility model, the laser displacement sensor assembly 301 includes a headrest sensor, which includes a third laser and a third photosensitive component. The laser beam emitted by the third laser is directed towards the headrest rod of the headrest, and the third photosensitive component is disposed in the optical path of the third reflected laser. The third reflected laser is the laser beam obtained by reflecting the laser beam emitted by the third laser from the headrest rod.

[0045] Specifically, the laser displacement sensor assembly 301 includes a plurality of laser displacement sensors, among which a headrest sensor is provided. The headrest sensor includes a third laser, and the laser beam emitted by the third laser is directed toward the headrest support plate of the headrest.

[0046] At this time, the laser beam emitted by the third laser is directed at the headrest bar. The headrest bar is marked with a scale. Due to the presence of the scale, the path length of the laser will be different at different positions on the headrest bar. As an example, after the third photosensitive component of the headrest sensor receives the laser reflected from the headrest bar, it can obtain the distance of the laser to different positions on the headrest bar based on the reflected laser. Based on the distance information, it reads the scale on the headrest bar, and thus obtains the state of the headrest based on the read value.

[0047] This allows for accurate status recognition of the headrest.

[0048] In some embodiments of this utility model, the seat adjustment device 1000 further includes a human-computer interaction device, which is connected to the control unit 205.

[0049] The aforementioned human-computer interaction device can be a human-computer interaction panel, through which the user can issue commands to the control unit 205 to drive the support actuator 103 and control the support component 400 according to the user's commands.

[0050] In some embodiments of this utility model, the seat adjustment device 1000 further includes a temperature sensor, which is connected to the control unit 205.

[0051] Therefore, by collecting the ambient temperature of the seat adjustment device 1000 through a temperature sensor, and compensating for the change in the refractive index of the laser at different temperatures in real time, the error of the seat adjustment device 1000 in adjusting the seat support component 400 can be further reduced by 0.05mm according to actual measurements.

[0052] In some embodiments of this utility model, the seat adjustment device 1000 further includes a power supply connected to the laser displacement sensor assembly 301, the control unit 205, and the support actuator 103.

[0053] The following is combined with Figure 2 The specific embodiments shown will be described in detail.

[0054] exist Figure 2 In the seat adjustment device 1000, the support component 400 includes a backrest, headrest, and lumbar support. The laser displacement sensor component 301 includes three laser displacement sensors: a lumbar support sensor, a backrest sensor, and a headrest sensor. The seat adjustment device 1000 includes an execution and interaction layer 100, a control layer 200, and a perception layer 300. The execution and interaction layer 100 includes a power supply 102, a human-machine interface device 101, and a support execution mechanism 103. The control layer 200 includes a signal processing unit 201, a main controller 202, a drive control module 204, and a deviation calculation module 203. The signal processing unit 201, the main controller 202, the drive control module 204, and the deviation calculation module 203 together constitute the aforementioned control unit 205. The perception layer 300 includes the laser displacement sensor component 301.

[0055] The aforementioned signal processing unit 201, main controller 202, drive control module 204, and deviation calculation module 203 can be implemented using methods such as microcontrollers or field-programmable gate arrays, as long as they can achieve the above functions. This application does not limit their specific structure. The aforementioned signal processing unit 201 can perform filtering and digitization processing on the received signal, thereby outputting a filtered signal and / or a digitized signal.

[0056] Power supply 102 is used to provide 12V or 5V power.

[0057] Laser displacement sensor assembly 301: Composed of multiple laser displacement sensors, corresponding to the support components 400 such as lumbar support, backrest, and headrest, and used to detect the actual displacement in real time.

[0058] Signal processing unit 201: performs filtering, amplification and digitization processing on sensor signals.

[0059] Control unit 205: includes main controller 202, deviation calculation module 203 and drive control module 204, realizes instruction parsing, deviation calculation and correction control.

[0060] The aforementioned deviation calculation module 203 can receive target displacement commands and laser displacement sensor detection data to calculate displacement deviation values; the aforementioned drive control module 204 can dynamically adjust the motor output of the supporting actuator according to the deviation value, forming a closed-loop control of "command-execution-detection-correction".

[0061] Support actuator 103: Composed of a servo motor and a transmission mechanism, it drives each support component 400 to complete displacement adjustment.

[0062] Auxiliary module: includes power supply 102 and human-machine interaction device, used for power supply and user command input.

[0063] Laser displacement sensor: Utilizes the triangular reflection principle, with a measurement range of 0-100mm, resolution of 0.01mm, accuracy of ±0.1mm, and sampling frequency ≥100Hz. The housing is made of aluminum alloy, with an IP6K9K protection rating, and is suitable for operating environments from -40℃ to 85℃.

[0064] The support actuator 103 employs a DC servo motor with a rated voltage of 12V and a torque of 1.5N•m, equipped with a precision lead screw drive (2mm lead, ≤0.05mm backlash), and an adjustment speed of 5mm / s. In other words, in this embodiment, the aforementioned lumbar support drive mechanism, backrest drive mechanism, and headrest drive mechanism are implemented using precision lead screws. By using precision lead screws, real-time monitoring in conjunction with laser displacement sensing can be achieved, eliminating mechanical transmission lag. The support actuator 103 can also output its own parameters to the control layer 200. These parameters may include the status information of each motor in the support actuator 103, and can be output to the signal processing unit 201 or the main controller 202.

[0065] Main controller 202: Uses STM32H743 microprocessor with a main frequency of 400MHz, supports parallel processing of multi-channel sensor data, and has a control cycle of ≤10ms.

[0066] Installation location of laser displacement sensor assembly 301:

[0067] Lumbar support sensor: Fixed to the seat back frame, the laser emission direction is perpendicular to the lumbar support plate to detect the lumbar support extension length.

[0068] Backrest sensor: Installed on the seat base, with the laser reflector fixed at the backrest rotation axis, it detects the backrest tilt angle (range 0°-120°) through angle-displacement conversion.

[0069] Headrest sensor: Integrated into the top of the headrest sleeve, the laser points downwards to the scale on the headrest rod to detect the height of the headrest.

[0070] Each sensor is connected to the control layer 200 via an RS485 bus, specifically to the signal processing unit 201. The output of the signal processing unit 201 is connected to the main controller 202 via an SPI interface.

[0071] The main controller 202 is connected to the deviation calculation module 203 via an internal data bus, and the output of the deviation calculation module is connected to the drive control module 204.

[0072] The drive control module 204 is connected to each motor supporting the actuator 103 via an H-bridge drive circuit.

[0073] The human-machine interface device is connected to the main controller 202 via a LIN bus. The power supply 102 provides 12V DC power, which is converted to 5V via DC-DC to power the sensors and controller.

[0074] Application Scenarios: Suitable for scenarios requiring high precision in support adjustment, such as high-end car seats, smart office chairs, and medical rehabilitation chairs, especially suitable for environments requiring frequent adjustments to the support component 400 (such as shared office chairs and car seats for long-distance driving). It can also be used for: - Aircraft seats: for multi-dimensional adjustments of business class aircraft seats (such as leg support and backrest angle), meeting aviation-grade precision requirements; - Gaming chairs: for gaming scenarios (such as rapid adjustments during intense gameplay), using laser sensors to achieve millisecond-level response support adaptation; - Smart beds: extending to displacement detection of the mattress support component 400 (such as backrest height adjustment and leg flexion), improving the adjustment precision of sleep devices. And other possible scenarios.

[0075] Working principle:

[0076] ① Command input: The user inputs target parameters (such as "lumbar support extension 25mm" and "backrest tilt angle 100°") through the human-machine interaction device 101. The command is transmitted to the main controller 202 via the LIN bus.

[0077] ② Initial drive: The main controller 202 sends an initial adjustment command to the drive control module 204, and the support actuator 103 drives the support component 400 to move towards the target position.

[0078] ③ Real-time detection: The laser displacement sensor assembly 301 synchronously collects actual displacement data.

[0079] Lumbar support extension = Sensor detection distance - Initial zero distance.

[0080] Backrest tilt angle = arcsin(sensor detection distance change / rotation axis radius) × (180 / π).

[0081] Headrest height = Initial zero-position distance - Real-time detection distance of the sensor.

[0082] ④ Deviation calculation: The deviation calculation module 203 calculates the deviation value of "target displacement - actual displacement" every 10ms. When the deviation value is greater than 0.5mm, the correction mechanism is triggered.

[0083] ⑤ Dynamic correction: The drive control module 204 outputs a PID adjustment signal based on the deviation value to control the support actuator 103 to make fine adjustments (e.g., when the lumbar support deviation is +2mm, the drive motor rotates an additional angle corresponding to the lead).

[0084] ⑥ Closed-loop stabilization: Repeat steps ③-⑤ until the deviation value is ≤0.5mm, forming a closed-loop control of "command-execution-detection-correction" to ensure that the support component 400 always maintains high-precision fit.

[0085] In some embodiments of this invention, the long-term trend of displacement deviation of the support component 400 (e.g., increased deviation due to lead screw wear) can be analyzed to provide early warning of component lifespan expiration. Wireless transmission can be implemented: replacing the laser displacement sensor with wireless communication (e.g., Bluetooth) reduces internal wiring and is suitable for modular seat designs. An adaptive algorithm can be used: introducing PID parameter self-tuning automatically optimizes and corrects parameters based on the inertial characteristics of different support components 400 (lumbar support / backrest).

[0086] In some embodiments of this utility model, the aforementioned laser displacement sensor can be replaced with a spectral confocal sensor, extending the measurement range to 0.500 mm, which is suitable for medical beds with long stroke adjustment; each motor in the support actuator 103 can be replaced with a linear motor to eliminate the lead screw transmission backlash and achieve nanometer-level adjustment accuracy (±0.01 mm); the main controller 202 can integrate a 5G module to realize remote diagnosis and firmware upgrade, which is suitable for fleet-managed commercial vehicle seats.

[0087] In some embodiments of this utility model, the laser displacement sensing module adopts a triangular reflection laser sensor with a resolution of 0.01mm, an accuracy of ±0.1mm, a sampling frequency of ≥100Hz, and is suitable for working environments from -40℃ to 85℃.

[0088] In summary, the seat adjustment device of this embodiment includes a laser displacement sensor assembly, a control unit, and a support actuator. The laser displacement sensor assembly includes a laser and a photosensitive component. The laser beam emitted by the laser is directed towards the support component of the seat. The photosensitive component is disposed in the optical path of the reflected laser. The control unit is connected to the laser displacement sensor assembly and the support actuator, and the support actuator is drivenly connected to the support component. The reflected laser is the laser beam obtained by the support component reflecting the laser beam emitted by the laser. Therefore, by obtaining the seat state through the laser displacement sensor assembly installed on the seat, accurate identification of the seat state can be achieved, thereby enabling precise adjustment of the seat.

[0089] Furthermore, this utility model proposes a seat.

[0090] Figure 3 This is a structural block diagram of the seat according to an embodiment of the present utility model.

[0091] like Figure 3 As shown, seat 1000 includes the aforementioned seat adjustment device 10.

[0092] The seat in this embodiment of the invention can be precisely adjusted using the aforementioned seat adjustment device.

[0093] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein can be considered as a ordered list of executable instructions for implementing logical functions, which can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0094] It should be understood that the various parts of this utility model can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0095] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0096] In the description of this specification, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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 should not be construed as a limitation of this utility model.

[0097] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0098] In this specification, unless otherwise stated, 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, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0099] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0100] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A seat adjustment device, characterized in that, The device includes a laser displacement sensor assembly, a control unit, and a support actuator. The laser displacement sensor assembly includes a laser and a photosensitive component. The laser beam emitted by the laser is directed towards the support assembly of the seat. The photosensitive component is disposed in the optical path of the reflected laser. The control unit is connected to the laser displacement sensor assembly and the support actuator. The support actuator is drivenly connected to the support assembly. The reflected laser is the laser beam emitted by the laser reflected by the support assembly.

2. The seat adjustment device according to claim 1, characterized in that, The support assembly includes a lumbar support, and the support actuator includes a lumbar support adjustment motor and a lumbar support transmission mechanism. The lumbar support adjustment motor is connected to the control unit and to the drive end of the lumbar support transmission mechanism, and the lumbar support is connected to the actuator end of the lumbar support transmission mechanism.

3. The seat adjustment device according to claim 1, characterized in that, The support assembly includes a backrest, and the support actuator includes a backrest tilt motor and a backrest transmission mechanism. The backrest tilt motor is connected to the control unit and to the drive end of the backrest transmission mechanism, and the backrest is connected to the actuator end of the backrest transmission mechanism.

4. The seat adjustment device according to claim 1, characterized in that, The support assembly includes a headrest, and the support actuator includes a headrest adjustment motor and a headrest transmission mechanism. The headrest adjustment motor is connected to the control unit and to the drive end of the headrest transmission mechanism, and the headrest is connected to the actuator end of the headrest transmission mechanism.

5. The seat adjustment device according to claim 2, characterized in that, The laser displacement sensor assembly includes a lumbar support sensor, which includes a first laser and a first photosensitive component. The laser beam emitted by the first laser is directed towards the lumbar support plate of the lumbar support. The first photosensitive component is disposed in the optical path of a first reflected laser, wherein the first reflected laser is the laser beam emitted by the first laser reflected by the lumbar support plate.

6. The seat adjustment device according to claim 3, characterized in that, The laser displacement sensor assembly includes a backrest sensor, which includes a second laser and a second photosensitive component. The laser beam emitted by the second laser is directed towards a laser reflector. The second photosensitive component is disposed in the optical path of the second reflected laser. The laser reflector is disposed on the outer surface of the backrest rotation shaft. The second reflected laser is the laser beam emitted by the second laser reflected by the laser reflector.

7. The seat adjustment device according to claim 4, characterized in that, The laser displacement sensor assembly includes a headrest sensor, which includes a third laser and a third photosensitive component. The laser beam emitted by the third laser is directed towards the headrest rod of the headrest. The third photosensitive component is disposed in the optical path of the third reflected laser, wherein the third reflected laser is the laser beam emitted by the third laser reflected by the headrest rod.

8. The seat adjustment device according to claim 1, characterized in that, The device also includes a human-computer interaction device, which is connected to the control unit.

9. The seat adjustment device according to claim 1, characterized in that, The device also includes a temperature sensor connected to the control unit.

10. A type of seat, characterized in that, Includes the seat adjustment device according to any one of claims 1-9.

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