Angle detection structure of automobile seat

Abstract

The utility model relates to an angle detection structure of an automobile seat, which is used for detecting the rotation angle of a rotating piece on the automobile seat, the rotating piece can rotate relative to a fixed piece through an axial piece, and the angle detection structure comprises a sensor, a sensor, an angle detection module and a control module, and the connecting part is formed on the sensor, the connecting part is relatively fixedly connected with the axial piece, and the connecting part and the sensor can rotate relatively. According to the utility model, the requirements of high precision and real-time sensing can be met, and the requirement of a high-requirement safety system is met.

Description

Technical Field

[0001] This utility model relates to the technical field of automobile seats, and specifically to an angle detection structure for automobile seats. Background Technology

[0002] Adjustable functions are becoming increasingly common in car seats, primarily including backrest rotation adjustment, seat cushion lifting adjustment, and backrest shoulder rotation adjustment. Car seat safety systems require that when the car's adjustable components move beyond a certain angle, the mechanism must return to a certain angle within a certain timeframe. Therefore, it is necessary to detect the rotation angle of the adjustable components. Existing detection methods include using a motor-driven hanger to detect the rotation angle, which has the advantage of low cost but low accuracy. Another method uses a switch-type sensor to detect the rotation angle, which also has the advantage of low cost but low accuracy. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an angle detection structure for automobile seats, thereby solving the problem of poor accuracy in existing methods for detecting rotation angles on automobile seats.

[0004] The technical solution to achieve the above objectives is:

[0005] This utility model provides an angle detection structure for a car seat, used to detect the rotation angle of a rotating component on a car seat. The rotating component can rotate relative to a fixed component via an axial component. The angle detection structure includes:

[0006] Sensors mounted on the rotating component;

[0007] A connecting portion is formed on the sensor, which is fixedly connected to the axial member and is rotatable relative to the sensor.

[0008] A further improvement of the angle detection structure for the car seat of this utility model is that one of the axial member and the connecting part is provided with an insertion hole, and the other of the axial member and the connecting part is inserted into the insertion hole, so that the connecting part and the axial member are connected in a limiting manner.

[0009] A further improvement of the angle detection structure for the car seat of this utility model is that the rotating component includes a connecting rod on the seat.

[0010] This utility model also provides an angle detection structure for a car seat, used to detect the rotation angle of a rotating component on a car seat. The rotating component rotates relative to a fixed component via an angle adjuster. The fixed plate of the angle adjuster is connected to the fixed component, and the rotating plate of the angle adjuster is connected to the rotating component. A synchronizing rod is passed through and connected to the angle adjuster. The angle detection structure includes:

[0011] A sensor mounted on the rotating component or the fixed component;

[0012] An interface portion is formed on the sensor, which is fixedly connected to the synchronizing rod and can rotate with the synchronizing rod. The interface portion and the sensor can rotate relative to each other.

[0013] A further improvement of the angle detection structure for the car seat of this utility model is that the interface is provided with a through hole that penetrates the sensor;

[0014] When the sensor is installed on the inner side of the rotating component, the synchronizing rod passes sequentially through the through hole, the rotating component, and the fixing component to connect the rotating component and the fixing component; or

[0015] When the sensor is installed on the inside of the fixing member, the synchronizing rod passes through the through hole, the fixing member and the rotating member in sequence to connect the rotating member and the fixing member.

[0016] A further improvement of the angle detection structure for the car seat of this utility model is that the interface portion is provided with a countersunk hole;

[0017] When the sensor is mounted on the outside of the rotating component, the synchronizing rod passes sequentially through the fixed component, the rotating component, and the countersunk hole to connect the rotating component and the fixed component; or

[0018] When the sensor is installed on the outside of the fixing member, the synchronizing rod passes through the rotating member, the fixing member and the countersunk hole in sequence to connect the rotating member and the fixing member.

[0019] A further improvement of the angle detection structure for the car seat of this utility model is that the interface is inserted into one end of the synchronizing rod, thereby achieving a relatively fixed connection between the interface and the synchronizing rod.

[0020] A further improvement of the angle detection structure for the car seat of this utility model is that when the sensor is installed on the rotating component, the sensor is movably connected to the rotating component.

[0021] A further improvement of the angle detection structure of the car seat of this utility model is that an elongated hole is formed on the sensor, and a stepped bolt is provided on the rotating member. The stepped bolt passes through the elongated hole, and the elongated hole moves relative to the stepped bolt when the rotating member rotates.

[0022] A further improvement of the angle detection structure for the car seat of this utility model is that when the sensor is installed on the fixing member, the sensor is fixedly connected to the fixing member.

[0023] A further improvement of the angle detection structure of the automobile seat of this utility model is that the rotating component includes a backrest side plate assembly and the fixing component includes a backrest lower connecting plate.

[0024] Alternatively, the rotating component may include a seat cushion linkage assembly, and the fixing component may include a seat cushion lower connecting plate assembly.

[0025] The beneficial effects of this utility model's angle detection structure for automotive seats are:

[0026] The angle detection structure of this utility model uses a sensor to detect the relative rotation angle between the rotating part and the axial part, and then calculates the angle of the mechanism. It can achieve the requirements of high precision and real-time perception, and meet the requirements of high-requirement safety systems.

[0027] The angle detection structure of this utility model uses a sensor to detect the absolute angle of rotation of the synchronization rod, and can calculate the angle of the mechanism, achieving high precision and real-time sensing requirements, and meeting the requirements of high-demand safety systems.

[0028] The angle detection structure of this utility model can achieve high-precision angle detection. It is related to the transmission ratio of the angle adjuster. When the synchronous rod rotates 37 degrees, the mechanism rotates 1 degree. The tolerance of the absolute position sensor of ±1 degree is reflected in the mechanism as ±1 / 37 degrees.

[0029] The sensor selected for the angle detection structure of this utility model has the advantages of small size and high integration. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the first embodiment of the angle detection structure of the present invention applied to the seat cushion assembly.

[0031] Figure 2 This is a schematic diagram of the angle detection structure of the car seat of this utility model, which is located in the rear linkage assembly of the seat cushion.

[0032] Figure 3 for Figure 2 A schematic diagram of the exploded decomposition structure shown.

[0033] Figure 4 for Figure 2 Cross-sectional view of the sensor mounting location.

[0034] Figure 5 for Figure 3 A schematic diagram of the axial component.

[0035] Figure 6 This is a schematic diagram of the first embodiment of the angle detection structure for automobile seats of this utility model.

[0036] Figures 7 to 9 This is a schematic diagram showing the breakdown steps of the front-end lifting and adjustment process of the seat cushion assembly.

[0037] Figure 10 These are schematic diagrams illustrating the second and fourth embodiments of the angle detection structure for automobile seats, applied to the seat cushion assembly and backrest assembly.

[0038] Figure 11 This is a schematic diagram of the second embodiment of the angle detection structure for a car seat of this utility model, installed on the connecting plate under the backrest.

[0039] Figure 12 for Figure 11 A schematic diagram of the exploded decomposition structure shown.

[0040] Figure 13 for Figure 11 Cross-sectional view of the sensor mounting location.

[0041] Figure 14 This is a schematic diagram of the second embodiment of the angle detection structure for automobile seats of this utility model.

[0042] Figures 15 to 17 This is a schematic diagram showing the breakdown steps of the process of rotating and adjusting the backrest side panel assembly relative to the lower backrest connecting plate.

[0043] Figure 18 This is a schematic diagram of the third embodiment of the angle detection structure for automobile seats of this utility model, installed on the backrest side panel assembly.

[0044] Figure 19 for Figure 18 A schematic diagram of the exploded decomposition structure shown.

[0045] Figure 20 for Figure 18 Cross-sectional view of the sensor mounting location.

[0046] Figure 21 This is a schematic diagram of the third embodiment of the angle detection structure for automobile seats of this utility model.

[0047] Figure 22 This is a schematic diagram of the fourth embodiment of the angle detection structure for automobile seats of this utility model, installed on the seat cushion linkage assembly.

[0048] Figure 23 for Figure 22 A schematic diagram of the exploded decomposition structure shown.

[0049] Figure 24 for Figure 22 Cross-sectional view of the sensor mounting location.

[0050] Figure 25 This is a schematic diagram of the fourth embodiment of the angle detection structure for automobile seats of this utility model.

[0051] Figures 26 to 28 A schematic diagram showing the breakdown steps of the process of rotating and adjusting the seat cushion linkage assembly relative to the lower seat cushion connecting plate assembly.

[0052] Figure 29 for Figure 26 A magnified view of a portion of the long, narrow hole in the sensor.

[0053] Figure 30 for Figure 27 A magnified view of a portion of the long, narrow hole in the sensor.

[0054] Figure 31 for Figure 28 A magnified view of a portion of the long hole in the sensor.

[0055] Figure 32 This is a schematic diagram of the fifth embodiment of the angle detection structure for automobile seats of this utility model, installed on the connecting plate assembly under the seat cushion.

[0056] Figure 33 for Figure 32 A schematic diagram of the exploded decomposition structure shown.

[0057] Figure 34 for Figure 32 Cross-sectional view of the sensor mounting location.

[0058] Figure 35 This is a schematic diagram of the fifth embodiment of the angle detection structure for automobile seats of this utility model.

[0059] Explanation of reference numerals in the attached figures:

[0060] 101-Lower backrest connecting plate; 103-Backrest synchronizing rod; 104-Backrest side plate assembly; 105-Lower backrest crossbeam; 106-Backrest angle adjuster; 107-Backrest motor; 108, 207-Motor mounting bolts; 109-Backrest thrust cap; 110, 209-Step bolts;

[0061] 201-Seat cushion under-mount connecting plate assembly; 203-Seat cushion synchronizing rod; 204-Seat cushion connecting rod assembly; 205-Seat cushion angle adjuster; 206-Seat cushion motor; 208-Seat cushion thrust cap;

[0062] 301-Seat cushion panel; 302-Slide rail assembly; 303-Rear linkage; 304-Front linkage; 305-Axial component; 306-Insertion hole; 307-Fixed bracket;

[0063] 401, 411, 421, 431, 441 - Sensors; 402 - Connector; 403 - Mounting bracket; 404, 414, 444 - Sensor mounting bolts; 405 - Bracket mounting bolts; 406, 416, 426, 436, 446 - Wiring harness; 407, 417, 427, 437, 447 - Connectors; 408, 418, 448 - Mounting holes; 415, 445 - Locating pins; 424, 434 - Sensor mounting nuts; 412, 422, 432, 442 - Interface parts; 413, 443 - Fixing brackets; Detailed Implementation

[0064] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0065] See Figure 1 This utility model provides an angle detection structure for a car seat, used to detect the rotation angle of rotating components on the car seat during vehicle operation or under car seat usage conditions. It can be applied to the collision reset of rotating components. Specifically, this angle detection structure can detect the rotation angle of rotating components such as connecting rods, and can also detect the rotation angle of rotating components driven by synchronizer rods. It has the advantages of high detection accuracy, small size, and high integration. The angle detection structure of this utility model for a car seat is described below with reference to the accompanying drawings.

[0066] See Figure 1 This diagram shows a first embodiment of the angle detection structure for automotive seats, applied to a seat cushion assembly. The following is a combined view... Figure 1 The angle detection structure of the car seat of this utility model will be described.

[0067] like Figure 1 As shown, the angle detection structure for a car seat of this invention is used to detect the rotation angle of a rotating component on the car seat in real time during vehicle operation. This rotating component can rotate relative to a fixed component via an axial component 305. The angle detection structure can be arranged at the location where relative rotation occurs. Combined with... Figure 6 As shown, the angle detection structure includes a sensor 401 mounted on a rotating component and a connecting portion 402 formed on the sensor 401. The connecting portion 402 is connected to the axial component 305, and the connecting portion 402 and the sensor 401 can rotate relative to each other.

[0068] like Figure 1As shown, a front connecting rod 304 is provided at the front of the seat cushion panel 301 of the car seat. One end of the front connecting rod 304 is hinged to the front of the seat cushion panel 301, and the other end is hinged to the slide rail assembly 302 or a fixed bracket sliding within the slide rail assembly 302. A rear connecting rod 303 is provided at the rear of the seat cushion panel 301. One end of the rear connecting rod 303 is hinged to the rear of the seat cushion panel 301, and the other end is hinged to the slide rail assembly 302 or a fixed bracket sliding within the slide rail assembly 302. The front connecting rod 304 and the rear connecting rod 303 allow for lifting and adjustment of the front and rear of the seat cushion panel 301. The sensor 401 of the angle detection structure of this utility model can be installed on the front link 304 and the rear link 303 to detect the rotation angle of the front link 304 and the rear link 303. The front link 304 and the rear link 303 can be rotating parts on the car seat.

[0069] like Figure 2 and Figure 3 As shown, one end of the rear connecting rod 303 is rotatably mounted on the fixed frame 307 via an axial member 305, and the rear connecting rod 303 can be adjusted to rotate relative to the axial member 305; the sensor 401 is mounted on the rear connecting rod 303 and can rotate with the rear connecting rod 303, combined with... Figure 4 and Figure 6 As shown, the connecting part 402 on the sensor 401 is connected to the axial member 305. The rear connecting rod 303 and the axial member 305 can rotate relative to each other, and the sensor 401 and the connecting part 402 can also rotate relative to each other, thereby realizing the detection of the angle of relative rotation between the rear connecting rod 303 and the axial member 305, and realizing the detection of the lifting angle of the seat cushion.

[0070] Furthermore, a mounting bracket 403 is provided on the rear link 303 corresponding to the sensor 401, and the sensor 401 is mounted on the rear link 303 through the mounting bracket 403.

[0071] Furthermore, the mounting bracket 403 is fixedly connected to the rear connecting rod 303 by bracket mounting bolts 405, of which two bolts 405 are provided. Alternatively, the mounting bracket 403 can be fixed to the rear connecting rod 303 by welding.

[0072] Sensor 401 is fastened to mounting bracket 403 by sensor mounting bolt 404. Mounting hole 408 is formed on sensor 401, and sensor mounting bolt 404 passes through mounting hole 408 to connect sensor 401 to mounting bracket 403. Alternatively, sensor 401 is fixedly connected to mounting bracket 403 by welding.

[0073] Furthermore, such as Figure 4 and Figure 5As shown, the axial member 305 has a corresponding insertion hole 306 for the connecting part 402; the connecting part 402 is inserted into the insertion hole 306, so that the connecting part 402 and the axial member 304 are in a limiting connection, and the limiting connection prevents the connecting part 402 from rotating relative to the axial member 305. Alternatively, the connecting part 402 has an insertion hole, and the axial member 305 is inserted into the insertion hole, thereby achieving a limiting connection between the connecting part 402 and the axial member 305.

[0074] Preferably, the axial component 305 can be a stepped bolt or a rotating shaft.

[0075] Furthermore, the shape of the connecting part 402 or the axial member 305 matches that of the insertion hole 306, and both are non-circular, such as square, polygonal, or floral. Alternatively, the connecting part 402 or the axial member 305 can be fixedly connected to the insertion hole 306, either by clamps or by welding. Figure 6 As shown, in the first embodiment, the sensor 401 is also connected to a wiring harness 406 and a connector 407 disposed at the end of the wiring harness 406. When installing the sensor 401, it is connected to a rotating component, which includes a linkage on the seat, such as a linkage mechanism, a front linkage 304, a rear linkage 303, etc. The wiring harness 406 and the connector 407 can be arranged reasonably according to the spatial layout of the sensor 401's installation position. The connector 407 can be plugged into a signal line to transmit the detection signal from the sensor 401.

[0076] like Figures 7 to 9 As shown, the process of the front end of the seat cushion being raised is illustrated. The sensor 401 of the angle detection structure of this utility model is installed on the rear link 303, which can detect the rotation angle of the rear link 303.

[0077] This utility model also provides an angle detection structure for a car seat, used to detect the rotation angle of a rotating component on a car seat. The rotating component can rotate relative to a fixed component via an angle adjuster. The fixed plate of the angle adjuster is connected to the fixed component, and the rotating plate of the angle adjuster is connected to the rotating component. A synchronizing rod is passed through and connected to the angle adjuster. The angle detection structure of this utility model includes a sensor mounted on the rotating component or the fixed component and an interface portion formed on the sensor. The interface portion is relatively fixedly connected to the synchronizing rod and can rotate with the synchronizing rod. The interface portion and the sensor can rotate relative to each other.

[0078] The sensor of this invention can detect the rotation angle of the synchronizing rod and then calculate the rotation angle of the rotating component, achieving high precision and real-time sensing requirements, and meeting the high requirements of safety systems.

[0079] In a preferred embodiment, the interface is provided with a through hole for the sensor. When the sensor is installed on the inner side of the rotating part, the synchronizing rod passes through the through hole, the rotating part and the fixed part in sequence to realize the connection between the rotating part and the fixed part.

[0080] Alternatively, when the sensor is mounted on the inside of the fixed component, the synchronizing rod passes through the perforation, the fixed component, and the rotating component in sequence to connect the rotating component and the fixed component.

[0081] In another preferred embodiment, the interface is provided with a countersunk hole; when the sensor is installed on the outside of the rotating part, the synchronizing rod passes through the fixed part, the rotating part and the countersunk hole in sequence to realize the connection between the rotating part and the fixed part.

[0082] Alternatively, when the sensor is mounted on the outside of the fixed component, the synchronizing rod passes through the rotating component, the fixed component, and the countersunk hole in sequence to connect the rotating component and the fixed component.

[0083] In another preferred embodiment, the interface portion is inserted into one end of the synchronizing rod, thereby achieving a relatively fixed connection between the interface portion and the synchronizing rod. For example, a countersunk hole is formed at the end of the synchronizing rod, and the interface portion is inserted into the countersunk hole to achieve a relatively fixed connection between the interface portion and the synchronizing rod.

[0084] In one specific embodiment of this utility model, the sensor is mounted on the rotating component and is movably connected to the rotating component.

[0085] Furthermore, an elongated hole is formed on the sensor, and a stepped bolt is provided on the rotating component. The stepped bolt passes through the elongated hole, and the elongated hole moves relative to the stepped bolt when the rotating component rotates.

[0086] In one specific embodiment of this utility model, the sensor is mounted on a fixing member, and the sensor is fixedly connected to the fixing member.

[0087] In one specific embodiment of this utility model, the rotating component includes a backrest side plate assembly, and the fixing component includes a lower backrest connecting plate.

[0088] Alternatively, the rotating component may include the seat cushion linkage assembly, and the fixing component may include the seat cushion lower connecting plate assembly.

[0089] Specifically, if Figure 10 As shown, the backrest of the car seat is driven to rotate by a drive mechanism consisting of a synchronizing rod and an angle adjuster, and the front connecting rod assembly of the car seat cushion is driven to rotate by a drive mechanism consisting of a synchronizing rod and an angle adjuster. The angle detection structure of this utility model can be used to detect the rotation angle at the structure driven by the synchronizing rod.

[0090] In the second embodiment, as Figures 11 to 14As shown, the angle detection sensor 411 is installed on the outside of the lower backrest connecting plate 101. The backrest side plate assembly 104 can be rotated and adjusted relative to the lower backrest connecting plate 101. At this time, the backrest side plate assembly 104 is a rotating component, and the lower backrest connecting plate 101 is a fixed component. A lower backrest crossbeam 105 is connected between the two backrest side plate assemblies 104. The rotating disk of the backrest angle adjuster 106 is fixedly connected to the backrest side plate assembly 104, such as by welding or bolting. The fixed disk of the backrest angle adjuster 106 is connected to the lower backrest connecting plate 101, such as by welding or bolting. The backrest motor 107 is mounted to the backrest side panel assembly 104 via motor mounting bolts 108. The backrest synchronizing rod 103 passes through the backrest motor 107 and the backrest angle adjuster 106 on both sides. Backrest thrust caps 109 are installed on both sides of the backrest synchronizing rod 103. The end of the backrest synchronizing rod 103 is inserted into the interface 412 of the sensor 411.

[0091] Furthermore, a fixing bracket 413 is provided on the outer side of the lower backrest connecting plate 101, through which the sensor 411 is installed. The fixing bracket 413 can be welded to the lower backrest connecting plate 101, or it can be installed on the lower backrest connecting plate 101 by other means such as bolting.

[0092] The sensor 411 has a mounting hole 418 through which a sensor mounting bolt 414 passes. The sensor mounting bolt 414 passes through the mounting hole 418 to fix the sensor 411 to the fixed bracket 413. Of course, the sensor 411 can be installed not only by bolting, but also by other methods, such as welding.

[0093] Furthermore, the interface portion 412 is a non-through structure with a countersunk hole. This interface portion 412 is located on one side of the sensor 411 and is fitted onto the end of the backrest synchronizing rod 103. The synchronizing rod 103 passes sequentially through the backrest side panel assembly 104, the angle adjuster 106, the lower backrest connecting plate 101, the backrest thrust cap 109, and the countersunk hole. The shape of the interface portion 412 matches the shape of the backrest synchronizing rod 103, and both are non-circular, such as square, polygonal, or floral shapes; alternatively, the interface portion can be fixedly connected to the synchronizing rod using clamps or welding.

[0094] Furthermore, the sensor 411 is provided with a positioning pin 415, and the fixed bracket 413 is provided with a positioning hole. The positioning pin 415 is inserted into the positioning hole to position the sensor 411.

[0095] The sensor 411 is connected to a wire harness 416 and a connector 417 located at the end of the wire harness 416. The sensor 411 is mounted on the lower backrest connecting plate 101. The wire harness 416 and connector 417 can also be mounted along the mounting direction of the lower backrest connecting plate 101. The connector 417 can be plugged into and connected to a signal line, and then the detection signal of the sensor 411 is transmitted.

[0096] like Figures 15 to 17 As shown, the backrest motor 107 drives the backrest synchronizing rod 103 to rotate, which in turn drives the backrest side panel assembly 104 to rotate. The sensor 411 is installed on the lower backrest connecting plate 101. When the lower backrest connecting plate 101 does not rotate, the sensor 411 also does not rotate. The interface part 412 rotates with the backrest synchronizing rod 103, thereby detecting the rotation angle of the backrest side panel assembly 104.

[0097] The principle behind the high detection accuracy of the angle detection structure of this utility model will be explained below.

[0098] First, let me explain the gear ratio of the angle adjuster:

[0099] Currently, common electric gear adjusters use differential gear planetary motion, such as CI Scorell, Scorell. Keiper T2000, and AVIC TJX2. The difference lies in the number of teeth on the inner and outer gear plates; the T3000 has 37 and 36 teeth on its inner and outer gear plates, respectively. The calculation of the transmission ratio (taking 37 and 36 teeth as examples) is as follows:

[0100] The forward gear ratio of the T3000 is calculated as follows: Outer gear plate (b) teeth: 36; Inner gear plate (a) teeth: 37. The outer gear plate connects to the seat canopy, and the inner gear plate connects to the backrest. Assume: the central shaft (motor) speed is Wh, the outer gear plate (b) speed is Wb (fixed gear plate), and the inner gear plate (a) speed is Wa. iab = (Wa - Wh) / (Wb - Wh) = 36 / 37, iah = Wa / Wh = 1 / 37. Similarly, the reverse gear ratio of the T3000 is ibh = Wb / Wh = -1 / 36.

[0101] When the angle adjuster is mounted correctly, the existing angle measurement method directly measures Wa, so the sensor tolerance is directly and completely reflected in the detection result. However, the sensor of this invention detects Wh, and Wa is calculated by formula as the product of Wh and the transmission ratio. The sensor tolerance will be reduced in Wa due to the transmission ratio.

[0102] When the angle adjuster is installed in reverse, the existing angle measurement method directly measures Wb, so the sensor tolerance is directly and completely reflected in the detection result. However, the sensor of this invention detects Wh, and then calculates Wb as the product of Wh and the transmission ratio using a formula. The sensor tolerance will be reduced in Wb due to the transmission ratio.

[0103] In the third embodiment, as Figures 18 to 21 As shown, sensor 421 is installed inside the backrest side panel assembly 104, which is rotatable relative to the lower backrest connecting plate 101. In this configuration, the backrest side panel assembly 104 is a rotating component, while the lower backrest connecting plate 101 is a fixed component. The rotation of the backrest side panel assembly 104 causes the sensor 421 mounted on it to rotate as well. At this time, the interface portion 422 on the sensor 421 is a through-hole structure, with a through-hole that passes through both sides of the sensor 421. The backrest synchronizing rod 103 passes through this through-hole. Specifically, the backrest synchronizing rod 103 passes sequentially through the through-hole, the backrest side panel assembly 104, the angle adjuster 106, the lower backrest connecting plate 101, and the backrest push cap 109.

[0104] Furthermore, an elongated hole 423 is formed on the sensor 421, and a stepped bolt 110 is provided on the inner side of the backrest side panel assembly 104. The stepped bolt 110 passes through the elongated hole 423, and a sensor mounting nut 424 is screwed to the end of the stepped bolt 110. The sensor 421 is mounted on the stepped bolt 110 using the sensor mounting nut 424. During the rotation of the backrest side panel assembly 104 relative to the lower backrest connecting plate 101, the stepped bolt 110 moves in the elongated hole 423, enabling the sensor 421 to absorb the eccentric fluctuations of the backrest adjuster 106.

[0105] The step bolt 110 can be screwed onto the backrest side panel assembly 104, or it can be welded onto the backrest side panel assembly 104.

[0106] The shape of the interface part 422 matches the shape of the backrest synchronization rod 103, and both are non-circular, such as square, polygonal, flower-shaped, etc.; or the interface part is fixedly connected to the synchronization rod, which can be achieved by clamps or welding.

[0107] The sensor 421 is connected to a wire harness 426 and a connector 427 located at the end of the wire harness 426. The sensor 421 is installed on the backrest side panel assembly 104. The wire harness 426 and the connector 427 can be extended downwards. The connector 427 can be plugged into and connected to a signal line, and then the detection signal of the sensor 421 is transmitted.

[0108] In the fourth embodiment, as Figures 22 to 25As shown, sensor 431 is installed on the outside of seat cushion linkage assembly 204. Seat cushion linkage assembly 204 is rotatably connected to seat cushion lower connecting plate assembly 201 via seat cushion adjuster 205. In this configuration, seat cushion linkage assembly 204 is a rotating component, and seat cushion lower connecting plate assembly 201 is a fixed component. The rotating disc of seat cushion adjuster 205 is connected to seat cushion linkage assembly 204 (e.g., by welding), and the fixed disc of seat cushion adjuster 205 is connected to seat cushion lower connecting plate assembly 201 (e.g., by welding). Seat cushion motor 206 is mounted on seat cushion lower connecting plate assembly 201 via motor mounting bolts 207. Seat cushion synchronizing rod 203 passes through seat cushion motor 206 and the seat cushion adjusters 205 on both sides. Seat cushion thrust caps 208 are installed on both sides of seat cushion synchronizing rod 203. The end of seat cushion synchronizing rod 203 is also inserted into the interface portion 432 of sensor 431.

[0109] The interface portion 432 is a non-through structure with a countersunk hole. This interface portion 432 is located on one side of the sensor 431 and is fitted onto the end of the seat cushion synchronization rod 203. The seat cushion synchronization rod 203 passes sequentially through the seat cushion lower connecting plate assembly 201, the seat cushion adjuster 205, the seat cushion connecting rod assembly 204, the seat cushion thrust cap 208, and the countersunk hole. The shape of the interface portion 432 matches the shape of the seat cushion synchronization rod 203, and both are non-circular, such as square, polygonal, or floral shapes; alternatively, the interface portion can be fixedly connected to the synchronization rod using clamps or welding.

[0110] A long slot 433 is formed on the sensor 431. A stepped bolt 209 is provided on the outer side of the seat cushion connecting rod assembly 204. The stepped bolt 209 passes through the long slot 433, and a sensor mounting nut 434 is screwed to the end of the stepped bolt 209. The sensor 431 is mounted on the stepped bolt 209 using the sensor mounting nut 434. During the rotation of the seat cushion connecting rod assembly 204 relative to the seat cushion lower connecting plate assembly 201, the stepped bolt 209 moves in the long slot 433, allowing the sensor 431 to absorb the eccentric fluctuations of the seat cushion adjuster 203.

[0111] The step bolt 209 can be screwed onto the seat cushion link assembly 204, or it can be welded onto the seat cushion link assembly 204.

[0112] The sensor 431 is connected to a wire harness 436 and a connector 437 located at the end of the wire harness 436. The sensor 431 is installed on the seat cushion link assembly 204. The wire harness 436 and the connector 437 can be installed along the setting direction of the seat cushion link assembly 204. The connector 437 can be plugged into and connected to the signal line, and then the detection signal of the sensor 431 is transmitted.

[0113] like Figures 26 to 28As shown, the seat cushion linkage assembly 204 rotates relative to the lower seat cushion connecting plate assembly 201 for adjustment. The sensor 431 rotates together with the seat cushion linkage assembly 204. Figures 29 to 31 As shown, during rotation, the position of the stepped bolt 209 within the elongated hole 433 is adaptively adjusted to absorb the eccentric fluctuations of the seat cushion adjuster 203. The interface part 432 rotates along with the seat cushion synchronizing rod 203, thereby detecting the rotation angle of the backrest linkage assembly 204.

[0114] In the fifth embodiment, as Figures 32 to 35 As shown, sensor 441 is installed inside the seat cushion under-connecting plate assembly 201. When the seat cushion under-connecting plate assembly 201 does not rotate, sensor 441 also does not rotate. The interface portion 442 on sensor 441 is a through-hole structure with a through-hole that passes through both sides of sensor 441. Seat cushion synchronizing rod 203 passes through this through-hole. Seat cushion synchronizing rod 203 sequentially passes through the through-hole, seat cushion under-connecting plate 201, seat cushion adjuster 205, seat cushion connecting rod assembly 204, and seat cushion thrust cap 208.

[0115] The shape of the interface part 442 matches the shape of the seat cushion synchronization rod 203, and both are non-circular, such as square, polygonal, flower-shaped, etc.; or the interface part is fixedly connected to the synchronization rod, which can be achieved by clamping or welding.

[0116] Sensor 441 is mounted on the under-seat connecting plate 201 via a fixing bracket 443. Sensor 441 has mounting holes 448, through which sensor mounting bolts 444 pass, securing sensor 441 to the fixing bracket 443. However, the mounting method of sensor 441 is not limited to bolting; other connection methods, such as welding, can also be used to mount sensor 441 to the fixing bracket 443.

[0117] The fixed bracket 443 is welded to the under-seat connecting plate 201, or it can be bolted to the under-seat connecting plate 201.

[0118] Furthermore, the sensor 441 is provided with a positioning pin 445, and the fixed bracket 443 is provided with a positioning hole. The positioning pin 445 is inserted into the positioning hole to position the sensor 441.

[0119] The sensor 441 is connected to a wire harness 446 and a connector 447 located at the end of the wire harness 446. The sensor 441 is installed on the seat cushion under the connecting plate assembly 201. The wire harness 446 and the connector 447 can be extended downwards. The connector 447 can be plugged into and connected to a signal line, and then the detection signal of the sensor 441 is transmitted.

[0120] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. An angle detection structure for a car seat, used to detect the rotation angle of a rotating component on a car seat, said rotating component being rotatable relative to a fixed component via an axial component, characterized in that, The angle detection structure includes: Sensors mounted on the rotating component; A connecting portion is formed on the sensor, which is fixedly connected to the axial member and is rotatable relative to the sensor.

2. The angle detection structure for a car seat as described in claim 1, characterized in that, One of the axial member and the connecting part is provided with a socket, and the other of the axial member and the connecting part is inserted into the socket, so that the connecting part and the axial member are connected in a limiting manner.

3. The angle detection structure for a car seat as described in claim 2, characterized in that, The rotating component includes a linkage on the seat.

4. An angle detection structure for a car seat, used to detect the rotation angle of a rotating component on a car seat, the rotating component being rotatable relative to a fixed component via an angle adjuster, the fixed plate of the angle adjuster being connected to the fixed component, the rotating plate of the angle adjuster being connected to the rotating component, and a synchronizing rod being passed through and connected to the angle adjuster, characterized in that, The angle detection structure includes: A sensor mounted on the rotating component or the fixed component; An interface portion is formed on the sensor, which is fixedly connected to the synchronizing rod and can rotate with the synchronizing rod. The interface portion and the sensor can rotate relative to each other.

5. The angle detection structure for a car seat as described in claim 4, characterized in that, The interface section has a through hole that penetrates the sensor; When the sensor is installed on the inner side of the rotating component, the synchronizing rod passes through the through hole, the rotating component, and the fixing component in sequence to achieve the connection between the rotating component and the fixing component; or When the sensor is installed on the inside of the fixing member, the synchronizing rod passes through the through hole, the fixing member and the rotating member in sequence to connect the rotating member and the fixing member.

6. The angle detection structure for an automobile seat as described in claim 4, characterized in that, The interface section is provided with a countersunk hole; When the sensor is mounted on the outside of the rotating component, the synchronizing rod passes through the fixed component, the rotating component, and the countersunk hole in sequence to connect the rotating component and the fixed component. or When the sensor is installed on the outside of the fixing member, the synchronizing rod passes through the rotating member, the fixing member and the countersunk hole in sequence to connect the rotating member and the fixing member.

7. The angle detection structure for an automobile seat as described in claim 4, characterized in that, The interface is inserted into one end of the synchronizing rod, thereby achieving a relatively fixed connection between the interface and the synchronizing rod.

8. The angle detection structure for an automobile seat as described in claim 4, characterized in that, When the sensor is mounted on the rotating component, the sensor is movably connected to the rotating component.

9. The angle detection structure for an automobile seat as described in claim 8, characterized in that, The sensor has an elongated hole, and the rotating component has a stepped bolt that passes through the elongated hole. When the rotating component rotates, the elongated hole moves relative to the stepped bolt.

10. The angle detection structure for an automobile seat as described in claim 5, characterized in that, When the sensor is mounted on the fixture, the sensor is fixedly connected to the fixture.

11. The angle detection structure for an automobile seat as described in claim 4, characterized in that, The rotating component includes a backrest side panel assembly, and the fixing component includes a lower backrest connecting plate; Alternatively, the rotating component may include a seat cushion linkage assembly, and the fixing component may include a seat cushion lower connecting plate assembly.

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