Vehicle and seat rotation device therefor

Abstract

The application relates to the technical field of vehicle seats, and provides a vehicle and a seat rotating device thereof. The seat rotating device of the vehicle comprises a fixed disc, a movable disc and a driving assembly. The movable disc is provided with a seat connecting part, and the middle part of the movable disc is provided with a power input part; the driving assembly comprises a floating frame arranged in the middle part of the fixed disc, a driving motor and an angle adjuster arranged on the floating frame, the floating frame is limited on the surface of the fixed disc and can move within a limited range, and the fixed gear ring and the rotating disc of the angle adjuster are fixedly connected with the floating frame and the power input part respectively; in the process that the driving assembly drives the movable disc to rotate, the floating frame can move within the limited range to keep the consistency of the rotating axes of the rotating disc and the movable disc. The seat rotating device of the vehicle can make the rotating disc and the movable disc synchronously and coaxially rotate through the floating frame which carries the driving motor and the fixed gear ring to follow the displacement, so that the eccentric rotation problem existing in the seat rotation driven by the angle adjuster can be improved.

Description

Technical Field

[0001] This application relates to the field of vehicle seat technology, and in particular to a vehicle and its seat rotation device. Background Technology

[0002] To enrich the seating options in car cabins, many models are equipped with rotating seats. These seats can rotate 90° to welcome guests or offer scenic views, or rotate 180° to allow for face-to-face interaction with rear passengers. In these technologies, electric rotating platforms are commonly used to mount the seats. The platforms are installed on the car body or on rails that allow the seats to move forward and backward. The seats are then fixed to the platforms, and the electric rotating platforms drive the seats to rotate at a set angle.

[0003] However, traditional electric rotating seats mostly use a motor in conjunction with an adjuster for rotational drive. The fixed gear ring of the adjuster and the rotating disk use an eccentric transmission method. When the adjuster is integrated into the electric rotating seat, the rotation of the seat driven by the adjuster will also suffer from eccentric rotation, affecting the user experience. Furthermore, traditional electric rotating seats are complex in structure, heavy, and expensive. The drive structure often uses a motor to drive a gear plate or rack; however, this structure has a certain clearance in the gear teeth, resulting in a relatively large clearance in the rotational transmission. This causes issues such as jamming and play during seat rotation and turning, requiring an additional mechanism to eliminate the clearance. This further increases the manufacturing cost and weight of the electric rotating seat, and also makes the assembly of the entire mechanism more complex. Utility Model Content

[0004] In view of this, this application aims to propose a vehicle seat rotation device to improve the problem of eccentric rotation that exists when using an angle adjuster to drive seat rotation.

[0005] To achieve the above objectives, the technical solution of this application is implemented as follows:

[0006] A vehicle seat rotation device includes a fixed plate, a movable plate rotatably disposed on the fixed plate, and a drive assembly for driving the movable plate to rotate. The movable plate has a seat connection portion for fixing a seat, and a power input portion is provided in the middle of the movable plate. The drive assembly includes a floating frame disposed in the middle of the fixed plate, a drive motor and an adjuster disposed on the floating frame. The floating frame is constrained on the surface of the fixed plate and is capable of moving within a limited range. The fixed gear ring and the rotating plate of the adjuster are respectively fixed to the floating frame and the power input portion. During the process of the drive assembly driving the movable plate to rotate, the floating frame can maintain the consistency of the rotation axes of the rotating plate and the movable plate by moving within the limited range.

[0007] Furthermore, the floating frame includes a main frame for supporting the angle adjuster and a motor connecting frame connected to one side of the main frame. The drive motor is hinged to the motor connecting frame via a hinge pin, and the hinge pin is arranged along the axial direction of the angle adjuster.

[0008] Furthermore, the edge of the main frame is provided with multiple limiting legs, and a limiting hole is provided on the fixed plate corresponding to each limiting leg; the limiting legs are restricted to the fixed plate by bolt pairs passing through the limiting holes, and the radial dimension of the limiting hole is larger than the radial dimension of the restraining bolt in the bolt pair, so as to allow the floating frame to move within the limited range.

[0009] Furthermore, the edge of the main frame is provided with a swing leg, and an elongated hole arranged radially along the angle adjuster is provided on the swing leg, and a pin inserted into the elongated hole is fixedly connected to the fixed plate.

[0010] Furthermore, the vehicle seat rotation device also includes a pressure plate for pressing the movable plate onto the fixed plate, and ball bearing assemblies are provided between the fixed plate and the movable plate, as well as between the movable plate and the pressure plate; during the rotation of the movable plate, the movable plate and the ball bearing assemblies roll into contact.

[0011] Furthermore, the edge of the pressure plate is formed with a downward-facing rotating groove, and the edge of the moving plate is formed with an upward-bent first flange, and the first flange is provided with an elastic sleeve; the first flange is located in the rotating groove, and during the rotation of the moving plate, the first flange slides in cooperation with the inner wall of the rotating groove through the elastic sleeve.

[0012] Furthermore, the top of the elastic sleeve is provided with a groove arranged circumferentially along the moving disc, and / or, the side of the elastic sleeve is provided with an abutting protrusion for sliding engagement with the side wall of the rotating groove.

[0013] Furthermore, the moving plate has wiring holes arranged in a semi-encircling shape around the power input part, and the fixed plate has wire-passing holes; the wiring harness from the seat can pass through the wiring holes and the wire-passing holes in sequence to connect to the outside.

[0014] Furthermore, on the plate of the moving disk, a second flange is formed at the edge of the wiring hole.

[0015] Compared with related technologies, this application has the following advantages:

[0016] (1) The vehicle seat rotation device of this application uses a fixed plate as the mounting base and rotatably sets the moving plate on the fixed plate, so that the rotation axis of the moving plate coincides with its center; at the same time, a floating frame that can float and move is set on the fixed plate as the mounting base for the drive motor and the angle adjuster, which can effectively eliminate the problem of eccentric transmission between the fixed gear ring and the rotating plate in the transmission of the angle adjuster; during the process of the drive assembly driving the moving plate to rotate, the drive motor and the fixed gear ring are carried by the floating frame to move accordingly, so that the rotating plate and the moving plate can rotate synchronously and coaxially, thus improving the problem of eccentric rotation that exists when the angle adjuster drives the seat rotation.

[0017] (2) By setting a motor connecting frame on the main frame of the floating frame, a good support foundation is provided for the setting of the drive motor; the drive motor is hinged and installed on the motor connecting frame by the hinge pin, and the parallel arrangement of the axis of the hinge pin and the angle adjuster allows for a certain positional change between the drive motor and the angle adjuster, which is more conducive to eliminating the problem of eccentric rotation of the angle adjuster.

[0018] (3) Multiple limiting legs are provided on the main frame. The floating frame can be well restricted to the upper surface of the fixed plate in the height direction of the vehicle seat rotation device by the bolt pair passing through the limiting legs, so as to prevent the floating frame from playing up and down. At the same time, the radial dimension of the limiting hole on the fixed plate is made larger than the radial dimension of the constraint bolt in the bolt pair by a preset size, so as to provide the required limiting range for the floating frame to float and move, thus realizing the smooth floating of the floating frame on the fixed plate with a simple structure.

[0019] (4) A swing leg is set at the edge of the main frame. At the same time, an elongated hole is opened on the swing leg as a sliding groove and hinge hole. The pin fixed to the fixed plate is inserted into the elongated hole to realize the swing of the floating frame on the fixed plate. At the same time, since the elongated hole has a certain length sliding distance, the pin can also slide relative to the length of the elongated hole, so that the floating frame can have a better swing and floating displacement effect on the fixed plate, which is more conducive to eliminating the problem of eccentric rotation of the angle adjuster on the floating frame.

[0020] (5) The moving plate is pressed onto the fixed plate by the pressure plate, and a ball bearing assembly is set between the fixed plate and the moving plate, and between the moving plate and the pressure plate, which can greatly reduce the rotational resistance of the moving plate and make the rotation of the moving plate on the fixed plate more stable and smooth.

[0021] (6) A rotating slide groove is constructed on the pressure plate, and a first flange is set on the outer edge of the moving plate. An elastic sleeve is installed on the first flange. The elastic sleeve abuts against the first flange and the rotating slide groove. By utilizing the elastic deformation performance of the elastic sleeve, the jamming and play problems that may exist in the transmission and steering process due to the gear meshing in the angle adjuster can be reduced, thereby further improving the rotational stability of the moving plate and thus improving the steering experience of the seat.

[0022] (7) If a groove is provided on the top of the elastic sleeve, the ribs formed between adjacent grooves will abut against the inner wall of the bottom of the rotating slide. This reduces the contact area between the elastic sleeve and the inner wall of the rotating slide, and also reduces the sliding resistance between the elastic sleeve and the rotating slide. If an abutting protrusion is provided on the side of the elastic sleeve, this will reduce the contact area between the side wall and the inner wall of the rotating slide, and also further improve the elastic support effect between the elastic sleeve and the rotating slide, which will help to further improve the stability and smoothness of the rotating disc.

[0023] (8) Through holes and wiring holes are respectively opened on the fixed plate and the moving plate to allow the seat wiring harness to be laid out. The wiring harness can be smoothly led to the vehicle floor under the seat and then connected to the vehicle control system to meet the needs of seat back angle adjustment, seat heating and related testing. Since the power input part in the middle of the moving plate needs to be connected to the angle adjuster, and the moving plate needs to rotate 180° to meet the need to drive the seat to achieve forward and backward steering, the wiring hole on the moving plate is designed as a semi-enclosed shape. While allowing the wiring harness to pass through, the wiring harness will not interfere with the rotation of the moving plate. During the rotation of the moving plate, the wiring harness can be located at different positions in the wiring hole, so that the wiring hole can always avoid the wiring harness. This avoids problems such as difficulty in wiring harness layout and easy entanglement of the wiring harness with adjacent mechanisms, thereby improving the layout conditions of the seat wiring harness in the vehicle seat rotation device.

[0024] (9) Since the wire harness passes through the wiring hole, there is a situation where the wire harness and the edge of the wiring hole come into contact during the rotation of the rotating disk; by setting a second flange at the edge of the wiring hole, the inner side of the wiring hole can be free from sharp edges and burrs, thereby preventing the wire harness from being damaged by sharp edges and burrs.

[0025] Another object of this application is to provide a vehicle equipped with the vehicle seat rotation device described in this application. The vehicle of this application possesses the technical advantages of the aforementioned vehicle seat rotation device. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application. The directional terms such as front / back, up / down, etc., used therein are only used to indicate relative positional relationships and do not constitute an improper limitation of this application. In the accompanying drawings:

[0027] Figure 1 This is a schematic diagram of the vehicle seat rotation device described in the embodiments of this application;

[0028] Figure 2 This is a structural schematic diagram of the vehicle seat rotation device described in the embodiments of this application from one side of the bottom.

[0029] Figure 3 for Figure 1 An exploded view of the vehicle seat rotation device shown.

[0030] Figure 4 for Figure 1 The diagram shown illustrates the structure of the vehicle seat rotation device with the pressure plate and moving plate hidden.

[0031] Figure 5 for Figure 2 The diagram shown illustrates the structure of the vehicle seat rotation device with the fixed plate and drive motor hidden.

[0032] Figure 6 This is a schematic diagram of the disassembled structure of the angle adjuster described in the embodiment of this application;

[0033] Figure 7 This is a schematic diagram of the floating frame and hinge pin described in the embodiments of this application;

[0034] Figure 8 This is a schematic diagram of the structure of the moving disk described in the embodiment of this application;

[0035] Figure 9 This is a bottom view of the moving disk described in the embodiment of this application;

[0036] Figure 10 This is a top view of the vehicle seat rotating device described in the embodiments of this application when the rotating disc is in its original position;

[0037] Figure 11 for Figure 10 A schematic diagram of the cross-sectional structure at position AA in the middle;

[0038] Figure 12 for Figure 10 The vehicle seat rotation device shown is a top view after the rotating disc has been rotated 90° counterclockwise.

[0039] Figure 13 for Figure 10The image shows a top view of the vehicle seat rotation device after the rotating disc has been rotated 180° counterclockwise.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Fixed plate; 100. Assembly window; 101. First sliding track; 102. Second sliding track; 103. Threading hole; 104. Pin; 105. Limiting hole; 11. Pressure plate fastening bolt; 12. Nut;

[0042] 2. Drive assembly; 20. Drive motor; 200. Power take-off shaft; 201. Hinge hole; 202. Hinge pin; 21. Adjuster; 210. Fixed gear ring; 211. Positioning protrusion; 212. Rotating disk; 213. Transmission assembly; 214. Shaft hole;

[0043] 3. Floating frame; 30. Main frame body; 300. Through hole; 301. Swinging support; 302. Limiting support; 303. Long strip hole; 304. Positioning hole; 31. Motor connection frame; 32. Bolt pair; 320. Constraint bolt; 321. Nut;

[0044] 4. Drive plate; 400. Power input unit; 401. First upper slide rail; 402. Second upper slide rail; 403. Third lower slide rail; 404. Seat connecting part; 405. First flange; 406. Second flange; 41. Elastic sliding sleeve; 410. Abutment protrusion; 411. Groove; 42. Wiring hole; 43. Seat mounting bolt;

[0045] 5. Pressure plate; 500. Clearance hole; 501. Rotary slide; 502. Third upper slide; 503. Press-fit hole; 600. Steel ball; 601. Cage; 61. First ball assembly; 62. Second ball assembly; 63. Third ball assembly; 7. Wiring harness. Detailed Implementation

[0046] To make the technical solution and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0047] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0048] Furthermore, it should be stated in the description of this application that if terms such as "up," "down," "left," "right," "front," "rear," "inner," and "outer" appear, indicating orientation or positional relationships, they are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this application and for clarity and conciseness of expression, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this application. Taking the vehicle described in this application as an example, the directional terms such as "up," "down," "left," "right," "front," and "rear" used in the embodiments are defined based on the vehicle's vertical direction (also known as the height direction), horizontal direction (also known as the width direction), and front-back direction (also known as the length direction). "Inner" and "outer" are defined based on the outline of the corresponding component. For example, "inner" and "outer" are defined based on the vehicle's outline, with the side of the vehicle outline closer to the middle of the vehicle being "inner," and vice versa.

[0049] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joint," and "connector" should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances. The qualifying terms such as "first," "second," "A," "B," "C," and "D" appearing in the description of this application are merely for distinguishing similar features in different locations, attributions, or uses, in order to avoid ambiguity and confusion, and should not be construed as indicating or implying relative importance.

[0050] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] It is important to emphasize that traditional electric rotating seats mostly use a motor in conjunction with an adjuster for rotational drive. However, the fixed gear ring of the adjuster and the rotating disk use an eccentric transmission method. When the adjuster is integrated into the electric rotating seat, the rotation of the seat driven by the adjuster will also suffer from eccentric rotation, affecting the user experience. Furthermore, traditional electric rotating seats are complex in structure, heavy, and expensive. The drive structure often uses a motor to drive a gear plate or rack; however, this structure has a certain amount of tooth clearance, resulting in a relatively large clearance in the rotational transmission. This causes issues such as jamming and play during seat rotation and turning, requiring an additional mechanism to eliminate the clearance. This further increases the manufacturing cost and weight of the electric rotating seat, and also makes the assembly of the entire mechanism more complex.

[0052] Furthermore, because the seats are equipped with backrest angle adjustment mechanisms, heating devices, and detection devices to check whether someone is sitting in the seat, a certain number of electrical wires are routed out from the seats. The wiring harness composed of these wires needs to pass through the electric rotary disc and connect to the vehicle's control system. The existing electric rotary disc and its gap elimination mechanism are already structurally complex to assemble, and they also need to perform rotational drive actions, making the wiring harness layout very difficult. Laying the wiring harness in a small and compact space also affects the assembly of the rotary disc. Therefore, it is often necessary to reserve a long wiring harness and avoid related structures through detour wiring. This not only increases the cost of the wiring harness, but also easily leads to situations such as the wiring harness getting tangled with adjacent mechanisms or the wiring harness being broken.

[0053] In view of the above-mentioned problems in related technologies, this application innovatively proposes a brand-new vehicle seat rotation device that can improve the problem of eccentric rotation that exists when using an angle adjuster to drive seat rotation.

[0054] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0055] An embodiment of the first aspect of this utility model provides a vehicle seat rotation device, which can be applied to scenarios where seats in a vehicle need to be rotated to accommodate passengers facing different directions, and can also be applied to other types of seats that require rotation; an exemplary structure is as follows: Figure 1 , Figure 2 and Figure 3 As shown.

[0056] Overall, the vehicle seat rotation device includes a fixed plate 1, a movable plate 4 rotatably mounted on the fixed plate 1, and a drive assembly 2 for driving the movable plate 4 to rotate. The movable plate 4 has a seat connection portion 404 for securing the seat, and a power input portion 400 is located at the center of the movable plate 4. The drive assembly 2 includes a floating frame 3 located at the center of the fixed plate 1, a drive motor 20, and an adjuster 21 mounted on the floating frame 3. The floating frame 3 is confined to the surface of the fixed plate 1 and can move within a limited range. The fixed gear ring 210 of the adjuster 21 and the rotating plate 212 are respectively fixed to the floating frame 3 and the power input portion 400. During the rotation of the movable plate 4 by the drive assembly 2, the floating frame 3 can maintain the alignment of the rotation axes of the rotating plate 212 and the movable plate 4 by moving within a limited range.

[0057] Based on the above overall design concept, in the vehicle seat rotation device of this application, the fixed plate 1 is used as the mounting base, and the moving plate 4 is rotatably mounted on the fixed plate 1, so that the rotation axis of the moving plate 4 coincides with its center; at the same time, a floating frame 3 that can float and move is set on the fixed plate 1 as the mounting base for the drive motor 20 and the angle adjuster 21, which can effectively eliminate the eccentric transmission problem of the fixed gear ring 210 and the rotating plate 212 in the transmission of the angle adjuster 21; during the process of the drive assembly 2 driving the moving plate 4 to rotate, the drive motor 20 and the fixed gear ring 210 are carried by the floating frame 3 to move accordingly, so that the rotating plate 212 and the moving plate 4 can rotate synchronously and coaxially, thus improving the eccentric rotation problem existing in the use of the angle adjuster 21 to drive the seat rotation.

[0058] It should be noted that, based on the above-mentioned overall design concept, the technical solution of this application can adopt a variety of different specific implementation structures, forms, or configuration sequences. For example, the floating displacement of the floating frame 3 on the fixed plate 1 can adopt the structure of a sliding chamber, or it can adopt the form of a large-diameter limiting hole 105 and bolt pair 32 as described in this application; the floating frame 3 can be designed as a disc, or it can be designed as a support form of triangular, square, or other shapes; the specific arrangement sequence and assembly method of the fixed plate 1, drive assembly 2, and moving plate 4 can also be flexibly adjusted. For the parts required for the implementation of the overall solution but not involved in the above overall setup, reasonable and flexible designs can be made by referring to mature setup methods in the field and the actual situation during implementation, which will not be elaborated here. The specific implementation schemes described below in this embodiment are only one of the many solutions that can be formed by the various combinations and variations mentioned above. In actual implementation, those skilled in the art can make flexible adjustments and improvements based on the actual situation. Obviously, the various solutions that can be formed by the combinations and variations of the above-mentioned specific forms, as well as the specific implementation schemes of this embodiment, are all within the protection scope of this application.

[0059] For the adjuster 21, existing mature products can be used, and adaptive modifications can be made to meet the size and drive performance requirements of the vehicle seat rotation device. For example... Figure 4 , Figure 5 and Figure 6 , Figure 7 As shown, the angle adjuster 21 in this embodiment includes a fixed gear ring 210, a rotating disk 212 disposed on the fixed gear ring 210, and a transmission assembly 213 that is drively connected between the power output shaft 200 of the drive motor 20 and the rotating disk 212; the teeth of the rotating disk 212 and the fixed gear ring 210 mesh. Meanwhile, the transmission assembly 213 is provided with a shaft hole 214 for the power output shaft 200 to be inserted. Under the drive of the drive motor 20, the transmission assembly 213 drives the rotating disk 212 to rotate eccentrically within the fixed gear ring 210. The power input part 400 of the moving disk 4 is fixedly connected to the rotating disk 212 and can rotate synchronously with the rotating disk 212. Multiple positioning holes 304 are provided on the floating frame 3, which can cooperate with the positioning protrusion 211 at the bottom of the fixed gear ring 210 to reliably fix the fixed gear ring 210 to the floating frame 3. Since the floating frame 3 can move on the fixed plate 1 carrying the fixed gear ring 210, the eccentric rotation of the fixed gear ring 210 relative to the rotating plate 212 can be eliminated, so that the moving plate 4 and the rotating plate 212 can rotate concentrically about the central axis of the fixed plate 1, thereby improving the eccentric rotation problem that exists when the seat is driven to rotate by the angle adjuster 21.

[0060] Continue as Figure 7 As shown, in some preferred exemplary embodiments, the floating frame 3 of this embodiment includes a main frame 30 for supporting the angle adjuster 21 and a motor connecting frame 31 connected to one side of the main frame 30. The drive motor 20 is hinged to the motor connecting frame 31 via a hinge pin 202, and the hinge pin 202 is arranged along the axial direction of the angle adjuster 21. A hinge hole 201 can be provided on the housing of the drive motor 20 for the hinge pin 202 to pass through, so as to realize the hinged installation of the drive motor 20 on the motor connecting frame 31. By setting the motor connecting frame 31 on the main frame 30 of the floating frame 3, a good supporting foundation is provided for the installation of the drive motor 20; by hingedly installing the drive motor 20 on the motor connecting frame 31 via the hinge pin 202, and by arranging the axes of the hinge pin 202 and the angle adjuster 21 in parallel, a certain positional change between the drive motor 20 and the angle adjuster 21 can be allowed, which is more conducive to eliminating the problem of eccentric rotation of the angle adjuster 21.

[0061] Regarding the floating displacement of the floating frame 3 on the fixed plate 1, as mentioned above, a structure with a sliding chamber on the fixed plate 1 can be adopted. By constructing a sliding chamber on the fixed plate 1 that meets the requirements of a defined range, and placing the floating frame 3 within the sliding chamber, the floating frame 3 can float and displace within a defined range. However, in this embodiment, as... Figure 7 and combined Figure 3 As shown, the edge of the main frame 30 is provided with multiple limiting legs 302. Corresponding to each limiting leg 302, a limiting hole 105 is provided on the fixed plate 1. The limiting legs 302 are restricted to the fixed plate 1 by bolt pairs 32 passing through the limiting holes 105. Moreover, the radial dimension of the limiting hole 105 is larger than the radial dimension of the restraining bolt 320 in the bolt pair 32, so as to allow the floating frame 3 to move within a limited range. In actual assembly, the restraining bolt 320 can be inserted from the bottom of the fixed plate 1 upward into the limiting hole 105 and the through hole on the limiting leg 302. Then, the nut 321 in the bolt pair 32 is screwed onto the restraining bolt 320, leaving a certain gap to avoid locking, so as to facilitate the movement of the floating frame 3.

[0062] The main frame 30 is provided with multiple limiting legs 302. The bolt pairs 32 passing through the limiting legs 302 can effectively restrict the floating frame 3 to the upper surface of the fixed plate 1 in the height direction of the vehicle seat rotation device, preventing the floating frame 3 from swinging up and down. At the same time, the radial dimension of the limiting hole 105 on the fixed plate 1 is made larger than the radial dimension of the restraining bolt 320 in the bolt pair 32 by a preset size, which can provide the necessary limiting range for the floating displacement of the floating frame 3, thus realizing the smooth floating of the floating frame 3 on the fixed plate 1 with a simple structure.

[0063] Additionally, a swing leg 301 can be provided at the edge of the main frame 30, and an elongated hole 303 arranged radially along the angle adjuster 21 can be provided on the swing leg 301. A pin 104 inserted into the elongated hole 303 is fixedly connected to the fixed plate 1. By providing a swing leg 301 at the edge of the main frame 30, and providing an elongated hole 303 on the swing leg 301 as a sliding groove and hinge hole, the pin 104 fixed to the fixed plate 1 can be inserted into the elongated hole 303 to realize the swing of the floating frame 3 on the fixed plate 1. At the same time, since the elongated hole 303 has a certain length sliding distance, the pin 104 can also slide relative to the length of the elongated hole 303, so that the floating frame 3 can have a better swing and floating displacement effect on the fixed plate 1, which is more conducive to eliminating the problem of eccentric rotation of the angle adjuster 21 on the floating frame 3.

[0064] Based on the above setup, an assembly window 100 can be opened in the middle of the fixed plate 1, and a through hole 300 can be opened in the middle of the main frame 30 for the power output shaft 200 of the drive motor 20 to pass through and be inserted into the shaft hole 214 located above the floating frame 3; thus, the drive motor 20 can be arranged below the fixed plate 1, reducing the space occupied by the vehicle seat rotation device.

[0065] In addition, such as Figure 3 and combined Figures 8 to 11As shown, the vehicle seat rotation device of this embodiment also includes a pressure plate 5 for pressing the movable disc 4 onto the fixed disc 1, and ball bearing assemblies are provided between the fixed disc 1 and the movable disc 4, and between the movable disc 4 and the pressure plate 5; during the rotation of the movable disc 4, the movable disc 4 and the ball bearing assemblies roll in cooperation. Specifically, in this embodiment, three sets of ball bearing assemblies are provided, and each set of ball bearing assemblies can adopt an assembly structure of a cage 601 and multiple steel balls 600. The three sets of ball bearing assemblies are a first ball bearing assembly 61 and a second ball bearing assembly 62 arranged concentrically between the movable disc 4 and the fixed disc 1, and a third ball bearing assembly 63 arranged between the movable disc 4 and the pressure plate 5.

[0066] To ensure that each ball assembly is held in the correct position, for the first ball assembly 61, a first lower slide rail 101 is provided on the fixed plate 1, and a first upper slide rail 401 is provided on the movable plate 4, with the first ball assembly 61 confined between the first lower slide rail 101 and the first upper slide rail 401; for the second ball assembly 62, a second lower slide rail 102 is provided on the fixed plate 1, and a second upper slide rail 402 is provided on the movable plate 4, with the second ball assembly 62 confined between the second lower slide rail 102 and the second upper slide rail 402; for the third ball assembly 63, a third lower slide rail 403 is provided on the movable plate 4, and a third upper slide rail 502 is provided on the pressure plate 5, with the third ball assembly 63 confined between the third lower slide rail 403 and the third upper slide rail 502. The moving plate 4 is pressed onto the fixed plate 1 by the pressure plate 5, and a ball bearing assembly is set between the fixed plate 1 and the moving plate 4, and between the moving plate 4 and the pressure plate 5. This can greatly reduce the rotational resistance of the moving plate 4, making the rotation of the moving plate 4 on the fixed plate 1 more stable and smooth.

[0067] The assembly between the pressure plate 5 and the fixed plate 1 can be achieved using bolt fastening. Multiple press-fit holes 503 are made at the edge of the pressure plate 5. Pressure plate fastening bolts 11 pass through the press-fit holes 503 and the fixed plate 1, and then nuts 12 are screwed onto the pressure plate fastening bolts 11 from below the fixed plate 1, thus fixing the fixed plate 1 and the pressure plate 5 together. Of course, given that the moving plate 4 has a seat connecting part 404 for mounting the seat, and the seat is located above the entire vehicle seat rotation device, the seat connecting part 404 can be designed to protrude upwards, such as... Figure 8 As shown, the design features an annular protrusion structure arranged around the power input section 400, with seat mounting bolts 43 passing through the seat connection section 404 for securing the seat. Based on the connection requirements between the seat connection section 404 and its seat mounting bolts 43 and the seat above, the pressure plate 5 can be designed as an annular shape. A clearance hole 500 is formed in the hollow center of the pressure plate 5. This clearance hole 500 allows the seat connection section 404 to protrude upwards while also allowing the seat's wiring harness 7 to pass through.

[0068] Continue as Figure 5 , Figure 8and Figure 11 As shown, in some preferred exemplary embodiments, the edge of the pressure plate 5 is formed with a downward-facing rotating groove 501, and the edge of the moving plate 4 is formed with an upward-bent first flange 405, on which an elastic sleeve 41 is provided. The first flange 405 is located within the rotating groove 501, and during the rotation of the moving plate 4, the first flange 405 slides against the inner wall of the rotating groove 501 through the elastic sleeve 41. By constructing a rotating groove 501 on the pressure plate 5 and providing a first flange 405 on the outer edge of the moving plate 4, and attaching an elastic sleeve 41 to the first flange 405, the elastic sleeve 41 achieves abutment between the first flange 405 and the rotating groove 501. Utilizing the elastic deformation performance of the elastic sleeve 41, the potential jamming and play problems that may exist in the transmission and steering process of the moving plate 4 due to the gear meshing in the angle adjuster 21 can be reduced, thereby further improving the rotational stability of the moving plate 4 and thus improving the steering experience of the seat.

[0069] Based on the above configuration, a groove 411 arranged circumferentially along the moving disk 4 can be provided on the top of the elastic sleeve 41, and an abutment protrusion 410 for sliding engagement with the side wall of the rotating slide 501 can be provided on the side of the elastic sleeve 41. By providing a groove 411 on the top of the elastic sleeve 41, the ribs formed between adjacent grooves 411 will abut against the bottom inner wall of the rotating slide 501, reducing the contact area between the elastic sleeve 41 and the inner wall of the rotating slide 501, thus reducing the sliding resistance between them. By providing an abutment protrusion 410 on the side of the elastic sleeve 41, the contact area between the elastic sleeve 41 and the inner wall of the rotating slide 501 is reduced, further enhancing the elastic support effect between them, which helps to further improve the stability and smoothness of the rotation of the moving disk 4.

[0070] This application also proposes a good and feasible solution to the problem of difficulty in wiring the seat harness 7 in the vehicle seat rotation device. For example... Figure 3 and combined Figure 10 , Figure 12 and Figure 13As shown, in some preferred exemplary embodiments, the moving plate 4 has a wiring hole 42 arranged in a semi-encircling shape around the power input section 400, and the fixed plate 1 has a wire-passing hole 103. The wiring harness 7 from the seat can pass through the clearance hole 500 on the pressure plate 5, the wiring hole 42 on the moving plate 4, and the wire-passing hole 103 on the fixed plate 1 from top to bottom to connect with the outside. The wire-passing hole 103 and the wiring hole 42 on the fixed plate 1 and the moving plate 4 respectively allow the wiring harness 7 of the seat to be passed through and arranged, so that the wiring harness 7 can be smoothly led to the vehicle floor under the seat, and then connected to the vehicle's control system to meet the needs of seat back angle adjustment, seat heating, and related detection.

[0071] Since the power input section 400 in the middle of the moving plate 4 needs to be connected to the angle adjuster 21, and the moving plate 4 needs to rotate 180° to meet the need to drive the seat to achieve forward and backward steering, the wiring hole 42 on the moving plate 4 is designed as a semi-enclosed shape. While allowing the wire harness 7 to pass through, the wire harness 7 will not interfere with the rotation of the moving plate 4. During the rotation of the moving plate 4, the wire harness 7 can be located at different positions in the wiring hole 42, so that the wiring hole 42 can always avoid the wire harness 7, avoiding problems such as difficulty in arranging the wire harness 7 and easy entanglement of the wire harness 7 with adjacent mechanisms, thereby improving the arrangement conditions of the seat's wire harness 7 in the vehicle seat rotation device.

[0072] Regarding the arrangement of the wiring hole 42, preferably, in this embodiment, a second flange 406 is formed at the edge of the wiring hole 42 on the plate of the moving disk 4. Since the wire harness 7 passes through the wiring hole 42, there is a possibility that the wire harness 7 and the edge of the wiring hole 42 may come into contact during the rotation of the moving disk 4; by providing the second flange 406 at the edge of the wiring hole 42, it is possible to avoid the presence of sharp edges and burrs on the inner side of the wiring hole 42, thereby preventing the wire harness 7 from being damaged due to scratches from sharp edges and burrs.

[0073] Based on the above exemplary embodiments, as a preferred combination of the exemplary solutions, refer to Figures 1 to 13 As shown, the overall structure and working principle of the vehicle seat rotation device in this embodiment are as follows:

[0074] The seat adjuster 21 in the vehicle seat rotation device is an eccentric transmission structure, and its output rotation is eccentric rotation. The eccentric rotation of the seat affects the riding experience. Therefore, by setting the drive motor 20 and the seat adjuster 21 on the floating frame 3, which can float and shift within a limited range on the fixed plate 1, the eccentric movement between the fixed gear ring 210 and the rotating plate 212 in the seat adjuster 21 can be effectively eliminated by the displacement of the floating frame 3. This allows the rotating plate 212 to smoothly drive the moving plate 4 to rotate synchronously, so as to support the seat to complete a 180° turn.

[0075] With the help of the semi-enclosed wiring hole 42 designed on the moving plate 4, the wiring harness 7 can be easily laid through the entire vehicle seat rotation device, and the wiring hole 42 avoids the wiring harness 7 during the rotation of the moving plate 4. Figure 10 and Figure 12 and Figure 13 As shown, when the moving disk 4 is... Figure 10 The original position shown is rotated to Figure 12 At the 90° position shown, the wire harness 7 is switched from one end of the wiring hole 42 to the middle of the wiring hole 42, when the moving plate 4 is... Figure 12 Rotate to the 90° position shown Figure 13 At the 180° position shown, the wiring harness 7 switches from the middle of the wiring hole 42 to the other end of the wiring hole 42. Throughout the process, the wiring harness 7 does not need to move; instead, the semi-circular clearance channel provided by the wiring hole 42 ensures perfect clearance of the wiring harness 7 during the movement of the vehicle seat rotating device. Therefore, the vehicle seat rotating device of this application avoids the problem of the wiring harness 7 being twisted, while also being simple to arrange and compatible with the arrangement needs of various wiring harnesses 7 for seats. The length of the wiring harness 7 does not need to be increased or detoured, reducing the configuration cost of the wiring harness 7.

[0076] In summary, the vehicle seat rotation device of this embodiment uses the fixed plate 1 as the mounting base and rotatably mounts the moving plate 4 on the fixed plate 1, so that the rotation axis of the moving plate 4 coincides with its center. At the same time, a floating frame 3 that can float and shift is set on the fixed plate 1 as the mounting base for the drive motor 20 and the angle adjuster 21, which can effectively eliminate the eccentric transmission problem of the fixed gear ring 210 and the rotating plate 212 in the transmission of the angle adjuster 21. During the process of the drive assembly 2 driving the moving plate 4 to rotate, the floating frame 3 carries the drive motor 20 and the fixed gear ring 210 to shift accordingly, so that the rotating plate 212 and the moving plate 4 can rotate synchronously and coaxially. Therefore, the eccentric rotation problem existing in the use of the angle adjuster 21 to drive the seat rotation can be improved. Furthermore, by setting a motor connecting frame 31 on the main frame 30 of the floating frame 3, a good supporting foundation is provided for the installation of the drive motor 20; the drive motor 20 is hinged and mounted on the motor connecting frame 31 by the hinge pin 202, and the parallel arrangement of the axes of the hinge pin 202 and the angle adjuster 21 allows for a certain positional change between the drive motor 20 and the angle adjuster 21, which is more conducive to eliminating the problem of eccentric rotation of the angle adjuster 21.

[0077] An embodiment of the second aspect of this application provides a vehicle equipped with the vehicle seat rotation device provided in Embodiment 1; therefore, the vehicle has the technical advantages of the aforementioned vehicle seat rotation device.

[0078] By configuring the vehicle seat rotation device of this application on the vehicle and adopting the floating frame 3 moving on the fixed plate 1, the eccentric transmission problem in the vehicle seat rotation device is solved, enabling the vehicle seat rotation device to achieve synchronous rotation output; the waist-shaped hole designed on the moving plate 4, that is, the semi-enclosed wiring hole 42, allows the seat wiring harness 7 to pass through from top to bottom and connect to the vehicle control system. When the seat rotates, the wiring hole 42 rotates around the wiring harness 7, avoiding the problem of wire twisting. The structure is simple to assemble, with fewer parts and lower cost. The arrangement of the wiring harness 7 does not affect the rotation of the vehicle seat rotation device. The vehicle seat rotation device is supplied as a separate whole and has good compatibility and versatility.

[0079] The above description is merely a preferred embodiment of this application. Detailed explanations of configurations, examples of specific structural arrangements, and descriptions of assembly and connection methods are provided to ensure sufficient disclosure so that those skilled in the art can better implement this application, and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A vehicle seat rotation device, characterized in that: It includes a fixed plate (1), a movable plate (4) rotatably disposed on the fixed plate (1), and a drive assembly (2) for driving the movable plate (4) to rotate; the movable plate (4) is provided with a seat connection part (404) for fixing a seat, and the middle part of the movable plate (4) is provided with a power input part (400). The drive assembly (2) includes a floating frame (3) located in the middle of the fixed plate (1), a drive motor (20) and an angle adjuster (21) located on the floating frame (3). The floating frame (3) is restricted to the surface of the fixed plate (1) and can move within a limited range. The fixed gear ring (210) and the rotating disk (212) of the angle adjuster (21) are respectively fixed to the floating frame (3) and the power input unit (400). During the process of the drive assembly (2) driving the moving disk (4) to rotate, the floating frame (3) is able to maintain the consistency of the rotation axis of the rotating disk (212) and the moving disk (4) by moving within the defined range.

2. The vehicle seat rotation device according to claim 1, characterized in that: The floating frame (3) includes a main frame (30) for supporting the angle adjuster (21) and a motor connecting frame (31) connected to one side of the main frame (30). The drive motor (20) is hinged to the motor connecting frame (31) by a hinge pin (202), and the hinge pin (202) is arranged along the axial direction of the angle adjuster (21).

3. The vehicle seat rotation device according to claim 2, characterized in that: The edge of the main frame (30) is provided with a plurality of limiting legs (302), and a limiting hole (105) is provided on the fixed plate (1) corresponding to each limiting leg (302); The limiting leg (302) is restricted to the fixed plate (1) by a bolt pair (32) passing through the limiting hole (105), and the radial dimension of the limiting hole (105) is greater than the radial dimension of the restraining bolt (320) in the bolt pair (32) to allow the floating frame (3) to move within the limited range.

4. The vehicle seat rotation device according to claim 3, characterized in that: The edge of the main frame (30) is also provided with a swing leg (301), and an elongated hole (303) arranged radially along the angle adjuster (21) is provided on the swing leg (301), and a pin (104) inserted into the elongated hole (303) is fixedly connected to the fixed plate (1).

5. The vehicle seat rotation device according to claim 1, characterized in that: The vehicle seat rotation device also includes a pressure plate (5) for pressing the movable disc (4) onto the fixed disc (1), and ball bearing assemblies are provided between the fixed disc (1) and the movable disc (4), and between the movable disc (4) and the pressure plate (5); during the rotation of the movable disc (4), the movable disc (4) and the ball bearing assemblies roll together.

6. The vehicle seat rotation device according to claim 5, characterized in that: The edge of the pressure plate (5) is formed with an open downward rotating groove (501), and the edge of the moving plate (4) is formed with an upwardly bent first flange (405), and the first flange (405) is provided with an elastic sleeve (41). The first flange (405) is located in the rotating groove (501). During the rotation of the moving plate (4), the first flange (405) slides with the inner wall of the rotating groove (501) through the elastic sleeve (41).

7. The vehicle seat rotation device according to claim 6, characterized in that: The top of the elastic sleeve (41) is provided with a groove (411) arranged circumferentially along the moving disk (4), and / or, the side of the elastic sleeve (41) is provided with an abutment protrusion (410) for sliding engagement with the side wall of the rotating groove (501).

8. The vehicle seat rotation device according to any one of claims 1 to 7, characterized in that: The moving plate (4) has a wiring hole (42) arranged in a semi-enclosed shape around the power input part (400), and the fixed plate (1) has a wire hole (103); the wire harness (7) from the seat can pass through the wiring hole (42) and the wire hole (103) in sequence to connect to the outside.

9. The vehicle seat rotation device according to claim 8, characterized in that: On the plate of the moving disk (4), a second flange (406) is formed at the edge of the wiring hole (42).

10. A vehicle, characterized in that: The vehicle is equipped with a vehicle seat rotation device as described in any one of claims 1 to 9.

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