Rotary outward-swinging sliding door driving arm structure and vehicle

Abstract

The invention discloses a rotary outward-swinging sliding door driving arm structure and a vehicle, the rotary outward-swinging sliding door driving arm structure comprises a swinging arm assembly, a sliding rail assembly and a driving assembly, and the head end of the swinging arm assembly is provided with a follow-up rotating driven body and a vehicle body rotating connecting part; the sliding rail assembly comprises a sliding rail body, a moving assembly and a follow-up rotating driven assembly, the sliding rail body is used for being fixedly connected with a vehicle door, and the moving assembly and the follow-up rotating driven assembly are both connected with the sliding rail body in the mode of sliding in the length direction of the sliding rail body. The follow-up rotation driven component is rotationally connected with the tail end of the swing arm assembly; the driving assembly comprises a driving element, a power switching assembly, a shunting transmission assembly, an outward swinging transmission assembly and a sliding transmission assembly, and the power switching assembly is used for switching the power transmission direction. The manufacturing cost can be reduced, the appearance attractiveness can be improved, and the requirement for the vehicle door opening space is low.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile structures, and in particular to a rotary outward-swinging sliding door drive arm structure and a vehicle. Background Art

[0002] With the advancement of automotive technology, vehicle door opening and closing methods have become increasingly diverse. In addition to the common traditional side-opening doors, there are also various types: wing doors, butterfly doors, scissor doors, and sliding doors. Wing doors have hinges located on the roof, opening upward to resemble a gull's wing. The hinges are driven vertically upward by an electric or hydraulic system. Butterfly doors have hinges mounted near the vehicle's A-pillar or fender, opening diagonally forward and upward, splaying outward at an angle, resembling butterfly wings. Scissor doors have hinges fixed to the vehicle's A-pillar, opening vertically upward, resembling scissors. Sliding doors slide horizontally open using upper, middle, and lower rails and a pulley system.

[0003] Traditional side-opening doors, wing doors, butterfly doors, and scissor doors require a large amount of space to open, and may be restricted in opening conditions in narrow parking environments. When opening a sliding door, the door is usually first moved in the Y direction (referring to the left and right direction of the vehicle) to the outside of the side panel or fender, so that the door's position in the Y direction is offset from the side panel or fender's position in the Y direction. The door is then driven in the X direction (referring to the front and back direction of the vehicle) to move it out of the door frame. Since only a small distance needs to be moved in the Y direction, the space required for the door to open is significantly reduced, allowing the door to be opened even when the vehicle is parked in a narrow space. However, existing sliding doors require three guide rails on the vehicle body: upper, middle, and lower. Furthermore, they require two motors and corresponding transmission mechanisms to respectively drive the Y and X directions, resulting in high manufacturing costs and significant restrictions on the vehicle's shape. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a rotating outward-swing sliding door drive arm structure and a vehicle, which can reduce manufacturing costs, and can also make the body shape no longer restricted by external slide rails, which is conducive to improving the aesthetics of the shape, and the door opening space requirements are relatively low.

[0005] A rotary outward-swing sliding door driving arm structure in the present invention comprises a swing arm assembly, a slide rail assembly and a driving assembly, wherein the head end of the swing arm assembly is provided with a rotating driven body and a vehicle body rotating connecting portion; The slide rail assembly includes a slide rail body, a moving assembly, and a follow-rotating driven assembly. The slide rail body is used to be fixedly connected to the vehicle door. The moving assembly and the follow-rotating driven assembly are both connected to the slide rail body in a manner of sliding along the length direction of the slide rail body. The follow-rotating driven assembly is rotatably connected to the tail end of the swing arm assembly. The drive assembly includes a driving element, a power switching component, a shunt transmission component, an outward swing transmission component and a sliding transmission component. The power switching component is used to switch the power transmission direction so that the driving element can transmit power to the outward swing transmission component or the sliding transmission component through the shunt transmission component; the outward swing transmission component is simultaneously connected to the rotating driven body and the rotating driven component, and the sliding transmission component is connected to the moving component.

[0006] Furthermore, the diverter transmission assembly includes a differential, a first output shaft arranged at one end of the differential, and a second output shaft arranged at the other end of the differential; the outward swing transmission assembly includes a first power input mechanism, and the sliding transmission assembly includes a second power input mechanism, the first output shaft is transmission-connected to the first power input mechanism, and the second output shaft is transmission-connected to the second power input mechanism.

[0007] Furthermore, the power switching assembly includes a first brake and a second brake, the first brake is connected to the first output shaft, and the second brake is connected to the second output shaft.

[0008] Furthermore, the outward swing transmission assembly also includes a double-headed bevel gear transmission shaft and a mounting seat. The double-headed bevel gear transmission shaft is transmission-connected to the first power input mechanism, the double-headed bevel gear transmission shaft is rotationally connected to the mounting seat, and the mounting seat is fixedly connected to the swing arm assembly.

[0009] Furthermore, the axis of the double-headed bevel gear transmission shaft is parallel to the axis of the first output shaft, the axis of the first bevel gear coincides with the axis of the vehicle body rotating connection part, and the axis of the first bevel gear is parallel to the axis of the second bevel gear.

[0010] Furthermore, the follower-rotating driven body is a first bevel gear fixedly connected to the head end of the swing arm assembly, and the follower-rotating driven assembly includes a second bevel gear and a swing arm rotating connection part connected in sequence, and the swing arm rotating connection part is rotationally connected to the tail end of the swing arm assembly, and the first bevel gear and the second bevel gear are respectively engaged with the two ends of the double-headed bevel gear transmission shaft to form a bevel gear transmission pair.

[0011] Furthermore, the sliding transmission assembly also includes a connecting rod drive shaft, which is transmission-connected to the second power input mechanism. The connecting rod drive shaft, the moving assembly and the slide rail body are transmission-connected in sequence, and the moving assembly can convert rotational motion into linear motion.

[0012] Furthermore, the moving assembly includes a second worm, a worm wheel nut sleeve assembly and a screw, the second worm is fixedly connected to the connecting rod drive shaft, and the screw is fixedly connected to the slide rail body; the outside of the worm wheel nut sleeve assembly is provided with worm wheel teeth meshing with the second worm, and the inside of the worm wheel nut sleeve assembly is provided with an internal thread connected to the screw thread, and the connecting rod drive shaft, the second worm and the worm wheel nut sleeve assembly are all rotatably matched with the follower driven assembly.

[0013] Furthermore, the second power input mechanism includes a first worm fixedly connected to the second output shaft and a first worm wheel fixedly connected to the connecting rod drive shaft, and the first worm wheel is engaged with the first worm.

[0014] Furthermore, the interior of the swing arm rotating connection part is provided with a accommodating cavity for the rotation of the connecting rod drive shaft, the second worm and the worm wheel nut sleeve assembly, and the interior of the swing arm rotating connection part is provided with a through groove for sliding cooperation with the slide rail body; the second bevel gear is outerly mounted on the connecting rod drive shaft, and the axis of the second bevel gear coincides with the axis of the connecting rod drive shaft.

[0015] A vehicle in the present invention includes a vehicle door, a vehicle body and the above-mentioned rotating outward-swinging sliding door drive arm structure, the head end of the swing arm assembly is connected to the vehicle body through the vehicle body rotation connection part, and the slide rail body is fixedly connected to the vehicle door.

[0016] Furthermore, when the vehicle door is a front door, the vehicle door is connected to the fender assembly of the vehicle body; when the vehicle door is a rear door, the vehicle door is connected to the side panel assembly of the vehicle body.

[0017] Furthermore, the front door and the rear door are in contact with each other on opposite sides to realize a vehicle body without a B-pillar.

[0018] The beneficial effects of the present invention are: (1) The present invention provides a power switching assembly and a shunt transmission assembly so that the rotating outward-swinging sliding door drive arm structure only requires one motor, and can limit the movement trajectory of the door, and can reduce or even completely eliminate the slide rail structure outside the vehicle body. By reducing the motor and the slide rail structure outside the vehicle body, the manufacturing cost can be reduced, and the vehicle body shape is no longer restricted by the external slide rail, which is conducive to improving the aesthetics of the shape.

[0019] (2) After the door of the present invention is moved out of or into the door frame of the vehicle body, the posture of the door is such that when it moves forward and backward along the outer edge of the door frame X, it will not interfere with the fender assembly or the side panel assembly of the vehicle body, so that the door opening space requirement is relatively low.

[0020] (3) The rotary outward-swinging sliding door driving arm structure of the present invention is used for the front door and rear door of a vehicle without B-pillar doors. When the door is opened, the front door first moves toward the outside of the vehicle in the Y direction and at the same time moves forward a certain distance in the X direction, and the rear door first moves toward the outside of the vehicle in the Y direction and at the same time moves backward a certain distance in the X direction. That is, when the door is opened, the front door and the rear door have trajectories of moving toward each other, thereby reducing the requirements for the sheet metal structure and sealing strip structure at the joint of the front door and the rear door for the disorderly opening of the vehicle without B-pillar doors, which is conducive to the disorderly opening of the front door and the rear door of the vehicle without B-pillar doors.

[0021] (4) The double-headed bevel gear transmission shaft of the present invention meshes with the first bevel gear to form a bevel gear transmission pair, and the double-headed bevel gear transmission shaft meshes with the second bevel gear to form a bevel gear transmission pair. The two bevel gear transmission pairs have the same speed ratio and different torque transmission directions, so as to ensure that the swing arm assembly and the slide rail assembly have the same rotation angle and opposite rotation directions, so that the posture of the car door remains parallel to the initial posture, so that the car door can be moved out of or into the door frame of the car body in parallel. The parallel posture of the car door ensures that it will not interfere with the fender assembly or the side panel assembly of the car body when it moves forward and backward along the outer edge of the door frame, so that the door opening space requirement is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the purpose, technical solutions and beneficial effects of the present invention more clear, the present invention provides the following drawings for illustration: Figure 1 This is a schematic structural diagram of a rotary outward-swing sliding door drive arm structure of the present invention; Figure 2 A schematic top view of the drive arm structure of a rotary outward-swing sliding door according to the present invention; Figure 3 for Figure 2 AA cross-section diagram; Figure 4 for Figure 2 BB cross-section diagram; Figure 5 A bottom view schematically shows the driving arm structure of a rotary outward-swing sliding door according to the present invention; Figure 6 Schematic diagram of the working principle of rotating and swinging the front door of the present invention (the dotted line is before the rotation and swing, and the solid line is after the rotation and swing); Figure 7 Schematic diagram of the working principle of the front door sliding forward to open according to the present invention (the dotted line is before sliding forward to open, and the solid line is after sliding forward to open); Figure 8 This is a schematic diagram of the rotary outward-swinging sliding door driving arm structure of the present invention applied to a vehicle door in a closed state on a vehicle body without a B-pillar; Figure 9This is a schematic diagram of the door opening state of a vehicle body without a B-pillar when the rotary outward-swinging sliding door driving arm structure of the present invention is applied; Figure 10 A schematic diagram of the movement trajectory of a door when the rotary outward-swinging sliding door driving arm structure of the present invention is applied to a vehicle door without a B-pillar; Figure 11 This is a schematic diagram of the structure of the rotary outward-swinging sliding door driving arm structure of the present invention applied to the closing of a door of a vehicle body without a B-pillar; Figure 12 This is a structural schematic diagram of the rotary outward-swinging sliding door driving arm structure of the present invention being applied to the opening of a door of a vehicle body without a B-pillar.

[0023] The following are marked in the accompanying drawings: 1-swing arm assembly, 101-rotating driven body, 102-vehicle body rotation connection part; 2-slide rail assembly, 201-slide rail body, 202-moving component, 2021-second worm, 2022-worm wheel nut sleeve assembly, 2023-screw, 203-following driven component, 2031-second bevel gear, 2032-swing arm rotating connection; 3-Drive assembly, 301-Drive element, 302-Power switching assembly, 3021-First brake, 3022-Second brake, 303-Split transmission assembly, 3031-Differential, 3032-First output shaft, 3033-Second output shaft, 304-Outward swing transmission assembly, 3041-First power input mechanism, 3042-Double-headed bevel gear transmission shaft, 3043-Mounting seat, 305-Sliding transmission assembly, 3051-Second power input mechanism, 3052-Connecting rod drive shaft; 4-Front door, 5-Rear door, 6-Fender assembly, 7-Side panel assembly. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "matched" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0026] In addition, it should be noted that in the description of the present invention, it should be noted that the terminology nouns in each embodiment, such as "upper", "lower", "front", "back" and other words indicating direction, are only for simplifying the description of the positional relationship based on the drawings in the specification, and do not mean that the referred elements and devices must be operated in accordance with the specific directions and defined operations and methods and structures in the specification. Such direction nouns do not constitute a limitation on the present invention.

[0027] In this embodiment, the X direction refers to the front-rear direction of the vehicle, the Y direction refers to the left-right direction of the vehicle, and the Z direction refers to the up-down direction of the vehicle.

[0028] like Figures 1-12 As shown, a rotary outward swing sliding door drive arm structure in this embodiment includes a swing arm assembly 1, a slide rail assembly 2 and a drive assembly 3. The head end of the swing arm assembly 1 is provided with a rotating driven body 101 and a vehicle body rotation connection portion 102; The slide rail assembly 2 includes a slide rail body 201, a moving component 202, and a follower-rotating driven component 203. The slide rail body 201 is used to be fixedly connected to the vehicle door. The moving component 202 and the follower-rotating driven component 203 are connected to the slide rail body 201 in a manner of sliding along the length direction of the slide rail body 201. The follower-rotating driven component 203 is rotatably connected to the tail end of the swing arm assembly 1. The drive assembly 3 includes a drive element 301, a power switching component 302, a shunt transmission component 303, an outward swing transmission component 304 and a sliding transmission component 305. The power switching component 302 is used to switch the power transmission direction so that the drive element 301 can transmit power to the outward swing transmission component 304 or the sliding transmission component 305 through the shunt transmission component 303; the outward swing transmission component 304 is simultaneously connected to the rotating driven body 101 and the rotating driven component 203, and the sliding transmission component 305 is connected to the moving component 202.

[0029] The swing arm assembly 1 can include a long swing arm and a short swing arm. One end of the long swing arm is connected to one end of the short swing arm to form a swing arm structure similar to a hook. The leading end of the swing arm assembly 1 is the end of the long swing arm away from the short swing arm, and the trailing end of the swing arm assembly 1 is the end of the short swing arm away from the long swing arm. The end of the long swing arm away from the short swing arm is pivotally connected to the fender assembly 6 or the side panel assembly 7 of the vehicle body via a vehicle body pivot connection 102. The vehicle body pivot connection 102 can be a rotating shaft.

[0030] The drive element 301 can be a motor. The power switching assembly 302 and the splitter transmission assembly 303 work together to transmit the motor's power to the outward swing transmission assembly 304 or the sliding transmission assembly 305. When power is transmitted to the outward swing transmission assembly 304, it can drive the door to swing open or close via the follower body 101 and the follower assembly 203. Because the door is swinging, it has a certain amount of displacement in both the X and Y directions, allowing it to move into or out of the door frame. When power is transmitted to the sliding transmission assembly 305, it can drive the door to move forward and backward along the X axis via the moving assembly 202.

[0031] Taking the application of the rotating outward-swing sliding door drive arm structure to the front door 4 as an example, when opening the front door 4, the power is first transmitted to the outward-swing transmission assembly 304, and the door is driven to swing outward and open through the rotating follower body 101 and the rotating follower assembly 203. The front door 4 moves toward the outside of the vehicle in the Y direction and moves forward a certain distance in the X direction, so that the door moves out of the door frame of the vehicle body. Then, the power is transmitted to the sliding transmission assembly 305, and the door is driven to move forward in the X direction to the vicinity of the fender assembly 6 through the moving assembly 202, so that the front door 4 moves to the front of the door frame, and the front door 4 is opened. When closing the front door 4, the process is opposite to the above-mentioned process of opening the front door 4. First, the power is transmitted to the sliding transmission assembly 305, which drives the door to move backward along the X direction to the vicinity of the door frame through the moving assembly 202. Then, the power is transmitted to the outward swing transmission assembly 304, which drives the front door 4 to move toward the interior of the vehicle in the Y direction and backward along the X direction for a certain distance through the rotating follower body 101 and the rotating follower assembly 203, and finally moves into the door frame of the vehicle body, completing the closing of the front door 4.

[0032] The rotary outward-swing sliding door drive arm structure in this embodiment has the following advantages: First, by providing a power switching component 302 and a shunt transmission component 303, the rotating outward-swinging sliding door drive arm structure only requires one motor, and can limit the movement trajectory of the door, and can reduce or even completely eliminate the slide rail structure outside the vehicle body. By reducing the number of motors and the slide rail structure outside the vehicle body, the manufacturing cost can be reduced, and the vehicle body shape is no longer restricted by the external slide rail, which is conducive to improving the aesthetics of the shape.

[0033] Secondly, after the door is moved out of or into the door frame of the vehicle body, the posture of the door is such that when it moves forward and backward along the outer edge of the door frame X, it will not interfere with the fender assembly 6 or the side panel assembly 7 of the vehicle body, so that the door opening space requirement is relatively low.

[0034] Third, the rotating outward-swinging sliding door driving arm structure is used for the front door 4 and the rear door 5 of the vehicle without B-pillar doors. When the door is opened, the front door 4 first moves toward the outside of the vehicle in the Y direction and moves forward a certain distance in the X direction. The rear door 5 first moves toward the outside of the vehicle in the Y direction and moves backward a certain distance in the X direction. That is, when the door is opened, the front door 4 and the rear door 5 have trajectories of moving toward each other, thereby reducing the requirements for the sheet metal structure and sealing strip structure at the joint of the front door 4 and the rear door 5 caused by the disorderly opening of the door without B-pillar, which is conducive to the disorderly opening of the front door 4 and the rear door 5 of the vehicle without B-pillar doors.

[0035] In this embodiment, the diversion transmission assembly 303 includes a differential 3031, a first output shaft 3032 arranged at one end of the differential 3031, and a second output shaft 3033 arranged at the other end of the differential 3031; the outward swing transmission assembly 304 includes a first power input mechanism 3041, and the sliding transmission assembly 305 includes a second power input mechanism 3051, the first output shaft 3032 is transmission-connected to the first power input mechanism 3041, and the second output shaft 3033 is transmission-connected to the second power input mechanism 3051.

[0036] In this embodiment, the power switching assembly 302 includes a first brake 3021 and a second brake 3022 . The first brake 3021 is connected to the first output shaft 3032 , and the second brake 3022 is connected to the second output shaft 3033 .

[0037] The first brake 3021 and the second brake 3022 may be electronic brakes, and the differential 3031 may be a planetary gear differential 3031 .

[0038] The motor is connected to the differential 3031 through a bevel gear transmission pair. The differential 3031 transmits the power from the motor to the first output shaft 3032 and the second output shaft 3033 respectively. The differential 3031 ensures that the first output shaft 3032 and the second output shaft 3033 do not interfere with each other. When the first output shaft 3032 is braked by the first brake 3021, the first output shaft 3032 stops rotating without affecting the normal rotation of the second output shaft 3033; similarly, when the second output shaft 3033 is braked by the second brake 3022, the second output shaft 3033 stops rotating without affecting the normal rotation of the first output shaft 3032.

[0039] The first power input mechanism 3041 is a mechanism capable of transmitting power between two mutually parallel first output shafts 3032 and the double-ended bevel gear transmission shaft 3042, such as a belt drive mechanism, gear drive mechanism, chain drive mechanism, etc. Taking the belt drive mechanism as an example: a driving pulley is provided on the first output shaft 3032, and a driven pulley is provided on the double-ended bevel gear transmission shaft 3042. A tensioned belt is provided on the driving pulley and the driven pulley. The rotation of the first output shaft 3032 drives the driving pulley to rotate, and the driving pulley drives the driven pulley to rotate via the belt, thereby achieving the first output shaft 3032 driving the double-ended bevel gear transmission shaft 3042 to rotate.

[0040] The first power input mechanism 3041 is a mechanism capable of transmitting power between two mutually perpendicular second output shafts 3033 and the connecting rod drive shaft 3052, such as a worm gear transmission mechanism or bevel gear transmission mechanism known in the art. Taking the worm gear transmission mechanism as an example, the second power input mechanism 3051 includes a first worm fixedly connected to the second output shaft 3033 and a first worm wheel fixedly connected to the connecting rod drive shaft 3052. The first worm wheel meshes with the first worm. Rotation of the second output shaft 3033 drives the first worm, which in turn drives the first worm wheel, thereby enabling the second output shaft 3033 to drive the connecting rod drive shaft 3052 to rotate.

[0041] In this embodiment, the outward swing transmission assembly 304 also includes a double-headed bevel gear transmission shaft 3042 and a mounting seat 3043. The double-headed bevel gear transmission shaft 3042 is transmission-connected to the first power input mechanism 3041, the double-headed bevel gear transmission shaft 3042 is rotationally connected to the mounting seat 3043, and the mounting seat 3043 is fixedly connected to the swing arm assembly 1.

[0042] The number of the mounting seats 3043 can be two or more, and the double-headed bevel gear transmission shaft 3042 can rotate by providing the mounting seats 3043 .

[0043] In this embodiment, the follower-rotating driven body 101 is a first bevel gear fixedly connected to the head end of the swing arm assembly 1. The follower-rotating driven assembly 203 includes a second bevel gear 2031 and a swing arm rotating connection portion 2032 connected in sequence. The swing arm rotating connection portion 2032 is rotationally connected to the tail end of the swing arm assembly 1. The first bevel gear and the second bevel gear 2031 are respectively engaged with the ends of the double-headed bevel gear transmission shaft 3042 to form a bevel gear transmission pair. In this embodiment, the axis of the double-headed bevel gear transmission shaft 3042 is parallel to the axis of the first output shaft 3032, the axis of the first bevel gear coincides with the axis of the vehicle body rotating connection portion 102, and the axis of the first bevel gear is parallel to the axis of the second bevel gear 2031.

[0044] The motor is connected to the differential 3031 via a bevel gear transmission pair. The differential 3031 transmits power from the motor to the first output shaft 3032 and the second output shaft 3033, respectively. The differential 3031 prevents the first and second output shafts 3032 and 3033 from interfering with each other. The second brake 3022 brakes the second output shaft 3033, stopping the second output shaft 3033 without affecting the normal rotation of the first output shaft 3032. The rotation of the first output shaft 3032 drives the double-bevel gear drive shaft 3042 via the first power input mechanism 3041. The double-bevel gear drive shaft 3042 drives the first bevel gear, which in turn drives the head end of the swing arm assembly 1 to rotate about the axis of the vehicle body rotation connection portion 102, thereby enabling the head end of the swing arm assembly 1 to rotate relative to the vehicle body. The double-bevel gear drive shaft 3042 drives the second bevel gear 2031 to rotate, driving the second bevel gear 2031 of the slide rail body 201 to rotate about its axis, thereby rotating the slide rail assembly 2 relative to the rear end of the swing arm assembly 1. The slide rail assembly 2 is connected to the vehicle door, thereby rotating the vehicle door relative to the rear end of the swing arm assembly 1. The double-bevel gear drive shaft 3042 meshes with the first bevel gear to form a bevel gear transmission pair, and the double-bevel gear drive shaft 3042 meshes with the second bevel gear 2031 to form a bevel gear transmission pair. The two bevel gear transmission pairs have the same speed ratio and different torque transmission directions, ensuring that the swing arm assembly 1 and the slide rail assembly 2 rotate at the same angle and in opposite directions. This ensures that the vehicle door remains parallel to its initial position, allowing the vehicle door to move parallel to or from the vehicle door frame. This parallel position prevents the vehicle door from interfering with the vehicle fender assembly 6 or the side panel assembly 7 when moving forward and backward along the outer edge of the door frame, thereby reducing the required door opening space.

[0045] In this embodiment, the sliding transmission assembly 305 also includes a connecting rod drive shaft 3052, which is transmission-connected to the second power input mechanism 3051. The connecting rod drive shaft 3052, the moving assembly 202 and the slide rail body 201 are transmission-connected in sequence, and the moving assembly 202 can convert rotational motion into linear motion.

[0046] In this embodiment, the moving component 202 includes a second worm 2021, a worm wheel nut sleeve assembly 2022 and a screw 2023. The second worm 2021 is fixedly connected to the connecting rod drive shaft 3052, and the screw 2023 is fixedly connected to the slide rail body 201; the outside of the worm wheel nut sleeve assembly 2022 is provided with worm gear teeth meshing with the second worm 2021, and the inside of the worm wheel nut sleeve assembly 2022 is provided with an internal thread threadedly connected to the screw 2023. The connecting rod drive shaft 3052, the second worm 2021 and the worm wheel nut sleeve assembly 2022 all rotate in cooperation with the follow-up driven component 203.

[0047] The motor is connected to the differential 3031 via a bevel gear pair. The differential 3031 transmits the power from the motor to the first output shaft 3032 and the second output shaft 3033, respectively. The differential 3031 prevents the first and second output shafts 3032 and 3033 from interfering with each other. The first brake 3021 brakes the first output shaft 3032, stopping it without affecting the normal rotation of the second output shaft 3033. The rotation of the second output shaft 3033 drives the first worm, which in turn drives the first worm wheel, thus enabling the second output shaft 3033 to rotate the connecting rod drive shaft 3052. The second worm 2021 is fixedly connected to the connecting rod drive shaft 3052, so the second worm 2021 can rotate synchronously with the connecting rod drive shaft 3052, and the second worm 2021 drives the worm wheel nut sleeve assembly 2022 to rotate through the worm gear teeth meshing with it. The interior of the worm wheel nut sleeve assembly 2022 is provided with an internal thread threadedly connected to the screw rod 2023, and the screw rod 2023 is fixedly connected to the slide rail body 201, so the screw rod 2023 cannot rotate. The worm gear teeth drive the worm wheel nut sleeve assembly 2022 to rotate on the screw rod 2023 so that the two move relative to each other. The direction of relative movement is along the length direction of the screw rod 2023 and the length direction of the slide rail body 201, wherein the length direction of the screw rod 2023 and the length direction of the slide rail body 201 are both along the X direction, that is, the front and rear direction of the vehicle. Furthermore, since the worm gear nut sleeve assembly 2022 is connected to the follower-rotating driven assembly 203 in a manner that they cannot slide relative to each other and can only rotate relative to each other, the follower-rotating driven assembly 203 is connected to the tail end of the swing arm assembly 1 in a manner that they cannot slide relative to each other and can only rotate relative to each other, and the head end of the swing arm assembly 1 is rotationally connected to the fender assembly 6 or the side panel assembly 7 of the vehicle body through the vehicle body rotation connection portion 102, therefore, the worm gear nut sleeve assembly 2022 cannot move forward and backward relative to the vehicle body, so the screw rod 2023 and the slide rail body 201 drive the vehicle door to move forward and backward relative to the vehicle body.

[0048] It is worth noting that the moving component 202 can convert rotational motion into linear motion. In addition to adopting the technical solution of driving the connecting rod shaft 3052, the second worm 2021 and the worm wheel nut sleeve assembly 2022, the moving component 202 can also adopt other transmission mechanisms such as gear rack transmission mechanism to convert rotational motion into linear motion.

[0049] In this embodiment, the interior of the swing arm rotating connection part 2032 is provided with an accommodating cavity for the rotation of the connecting rod drive shaft 3052, the second worm 2021 and the worm wheel nut sleeve assembly 2022, and the interior of the swing arm rotating connection part 2032 is provided with a through groove for sliding cooperation with the slide rail body 201; the second bevel gear 2031 is externally mounted on the connecting rod drive shaft 3052, and the axis of the second bevel gear 2031 coincides with the axis of the connecting rod drive shaft 3052.

[0050] The shape of the accommodating cavity matches the shapes of the connecting rod drive shaft 3052, the second worm 2021, and the worm wheel nut sleeve assembly 2022, allowing the connecting rod drive shaft 3052, the second worm 2021, and the worm wheel nut sleeve assembly 2022 to rotate within the accommodating cavity without moving. The shape of the through slot matches the shape of the slide rail body 201, and the through slot extends along the X direction, i.e., the front-to-back direction of the vehicle, thereby allowing the slide rail body 201 to slide back and forth relative to the through slot.

[0051] A vehicle in this embodiment includes a vehicle door, a vehicle body and the above-mentioned rotating outward-swinging sliding door drive arm structure. The head end of the swing arm assembly 1 is connected to the vehicle body through the vehicle body rotating connection part 102, and the slide rail body 201 is fixedly connected to the vehicle door.

[0052] In this embodiment, when the vehicle door is a front door 4 , the vehicle door is connected to the fender assembly 6 of the vehicle body; when the vehicle door is a rear door 5 , the vehicle door is connected to the side panel assembly 7 of the vehicle body.

[0053] In this embodiment, the front door 4 and the rear door 5 are abutted against each other on the opposite sides to realize a B-pillar-less vehicle body. The B-pillar-less vehicle body eliminates the traditional B-pillar between the front door 4 and the rear door 5 through an innovative design, and adopts a double-door structure to achieve a larger door opening space and greater convenience for getting on and off the vehicle. The front door 4 and the rear door 5 are directly abutted against each other through a sheet metal structure combined with a sealing strip structure. The sheet metal structure and the sealing strip structure at the joint of the front door 4 and the rear door 5 will not be described in detail here. Of course, the above-mentioned rotating outward-swinging sliding door drive arm structure is not limited to applications in vehicles without B-pillar bodies. The above-mentioned rotating outward-swinging sliding door drive arm structure can also be applied to vehicles with B-pillar bodies. The application here to vehicles without B-pillar bodies is an example of a preferred embodiment rather than a limitation.

[0054] The following is explained using the opening of the front door 4 as an example: like Figure 6As shown, first, the front door 4 is rotated and swung outward: the motor rotates forward, braking the second output shaft 3033 via the second brake 3022. The differential 3031 transmits power from the motor to the first and second output shafts 3032 and 3033, respectively. The differential 3031 prevents the second output shaft 3033 from rotating without affecting the normal rotation of the first output shaft 3032. The rotation of the first output shaft 3032 drives the double-bevel gear transmission shaft 3042 via the first power input mechanism 3041. The double-bevel gear transmission shaft 3042 drives the first bevel gear, which in turn drives the head end of the swing arm assembly 1 to rotate about the axis of the vehicle body rotation connection portion 102, thereby achieving rotation of the head end of the swing arm assembly 1 relative to the vehicle body. The second bevel gear 2031 is driven to rotate by the double-headed bevel gear drive shaft 3042, which drives the axis of the second bevel gear 2031 of the slide rail body 201 to rotate as the rotation center, thereby achieving the rotation of the tail end of the slide rail assembly 2 relative to the swing arm assembly 1. The slide rail assembly 2 is connected to the vehicle door, and the vehicle door is further rotated relative to the tail end of the swing arm assembly 1. The double-headed bevel gear drive shaft 3042 meshes with the first bevel gear to form a bevel gear transmission pair, and the double-headed bevel gear drive shaft 3042 meshes with the second bevel gear 2031 to form a bevel gear transmission pair. The two bevel gear transmission pairs have the same speed ratio and different torque transmission directions, ensuring that the swing arm assembly 1 and the slide rail assembly 2 rotate at the same angle and in opposite directions, so that the posture of the vehicle door remains parallel to the initial posture, allowing the vehicle door to move parallel to or from the door frame of the vehicle body.

[0055] like Figure 7As shown, then, the forward sliding opening of the front door 4 is performed: the motor is reversed, the first output shaft 3032 is braked by the first brake 3021, the differential 3031 transmits the power from the motor to the first output shaft 3032 and the second output shaft 3033 respectively, and the differential 3031 allows the first output shaft 3032 to stop rotating without affecting the normal rotation of the second output shaft 3033. The rotation of the second output shaft 3033 drives the first worm to rotate, and the first worm drives the first worm gear to rotate, realizing the rotation of the second output shaft 3033 driving the connecting rod drive shaft 3052. The second worm 2021 is fixedly connected with the connecting rod drive shaft 3052, so that the second worm 2021 can rotate synchronously with the connecting rod drive shaft 3052. The second worm 2021 drives the worm nut sleeve assembly 2022 to rotate through the worm gear teeth engaged therewith. The worm nut sleeve assembly 2022 is internally provided with an internal thread threadedly connected with the lead screw 2023, and the lead screw 2023 is fixedly connected with the slide rail body 201, so that the lead screw 2023 cannot rotate. The rotation of the worm gear teeth drives the worm nut sleeve assembly 2022 to rotate on the lead screw 2023, causing the relative movement of the two. Since the worm nut sleeve assembly 2022 cannot move forward and backward relative to the vehicle body, the lead screw 2023 and the slide rail body 201 drive the vehicle door to move forward and backward relative to the vehicle body, realizing the forward sliding of the front door 4 to the front of the door frame, and completing the opening of the front door 4.

[0056] The closing process of the front door 4 is opposite to the above-mentioned opening process of the front door 4, which will be briefly described as follows: first, the motor is reversed, and the first output shaft 3032 is braked by the first brake 3021, realizing the rearward sliding of the front door 4 to a position near the door frame. This position is the position of the front door 4 at the end of the above-mentioned "rotating outward swing" of the front door 4. Then, the motor is reversed, and the second output shaft 3033 is braked by the second brake 3022, realizing the rotating inward swing of the front door 4 and moving the front door 4 into the door frame of the vehicle body, thereby completing the closing of the front door 4.

[0057] The vehicle in the embodiment applying the rotating outward swing sliding door drive arm structure has the following advantages: Firstly, by arranging the power switching assembly 302 and the split transmission assembly 303, the rotating outward swing sliding door drive arm structure only needs one motor, can limit the movement track of the door, can reduce or even completely cancel the slide rail structure outside the vehicle body, can reduce the manufacturing cost by reducing the motor and the slide rail structure outside the vehicle body, and can no longer limit the vehicle body modeling by the external slide rail, which is beneficial to improving the modeling aesthetics.

[0058] Secondly, after the door is moved out of or into the door frame of the vehicle body, the posture of the door is such that when it moves forward and backward along the outer edge of the door frame X, it will not interfere with the fender assembly 6 or the side panel assembly 7 of the vehicle body, so that the door opening space requirement is relatively low.

[0059] Third, the door movement trajectories of the front door 4 and the rear door 5 are as follows: Figure 10 As shown, the rotary outward-swinging sliding door driving arm structure is used for the front door 4 and the rear door 5 of a vehicle without B-pillars. When the doors are opened, the front door 4 first moves toward the outside of the vehicle in the Y direction and moves forward a certain distance in the X direction. The rear door 5 first moves toward the outside of the vehicle in the Y direction and moves backward a certain distance in the X direction. That is, when the doors are opened, the front door 4 and the rear door 5 have trajectories of moving toward each other, thereby reducing the requirements for the sheet metal structure and sealing strip structure at the joint of the front door 4 and the rear door 5 caused by the disorderly opening of the doors without B-pillars, which is conducive to the disorderly opening of the front door 4 and the rear door 5 of the vehicle without B-pillars.

[0060] The vehicle in this embodiment can be, but is not limited to, a pure electric vehicle (Pure Electric Vehicle / Battery Electric Vehicle, PEV / BEV), a hybrid electric vehicle (Hybrid Electric Vehicle, HEV), a range extended electric vehicle (Range Extended Electric Vehicle, REEV), a plug-in hybrid electric vehicle (Plug-in Hybrid Electric Vehicle, PHEV), a new energy vehicle (New Energy Vehicle), a fuel vehicle, etc.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A rotary outward-swing sliding door drive arm structure, characterized by: It comprises a swing arm assembly (1), a slide rail assembly (2) and a drive assembly (3), wherein the head end of the swing arm assembly (1) is provided with a rotating driven body (101) and a vehicle body rotating connection portion (102); The slide rail assembly (2) comprises a slide rail body (201), a moving component (202) and a rotating driven component (203); the slide rail body (201) is used for fixed connection with the vehicle door; the moving component (202) and the rotating driven component (203) are connected to the slide rail body (201) in a manner of sliding along the length direction of the slide rail body (201); and the rotating driven component (203) is rotationally connected to the tail end of the swing arm assembly (1); The drive assembly (3) comprises a drive element (301), a power switching assembly (302), a shunt transmission assembly (303), an outward swing transmission assembly (304) and a sliding transmission assembly (305); the power switching assembly (302) is used to switch the power transmission direction so that the drive element (301) can transmit power to the outward swing transmission assembly (304) or the sliding transmission assembly (305) through the shunt transmission assembly (303); the outward swing transmission assembly (304) is simultaneously in transmission connection with the rotating driven body (101) and the rotating driven assembly (203); and the sliding transmission assembly (305) is in transmission connection with the moving assembly (202).

2. The rotary outward-swing sliding door drive arm structure according to claim 1, characterized in that: The split transmission assembly (303) includes a differential (3031), a first output shaft (3032) arranged at one end of the differential (3031), and a second output shaft (3033) arranged at the other end of the differential (3031); the outward swing transmission assembly (304) includes a first power input mechanism (3041), and the slip transmission assembly (305) includes a second power input mechanism (3051); the first output shaft (3032) is in transmission connection with the first power input mechanism (3041), and the second output shaft (3033) is in transmission connection with the second power input mechanism (3051).

3. The rotary outward-swing sliding door drive arm structure according to claim 2, characterized in that: The power switching assembly (302) comprises a first brake (3021) and a second brake (3022), wherein the first brake (3021) is connected to the first output shaft (3032), and the second brake (3022) is connected to the second output shaft (3033).

4. The rotary outward-swing sliding door drive arm structure according to claim 2, characterized in that: The outer swing transmission assembly (304) further comprises a double-headed bevel gear transmission shaft (3042) and a mounting seat (3043), wherein the double-headed bevel gear transmission shaft (3042) is in transmission connection with the first power input mechanism (3041), the double-headed bevel gear transmission shaft (3042) is rotationally connected to the mounting seat (3043), and the mounting seat (3043) is fixedly connected to the swing arm assembly (1).

5. The rotary outward-swing sliding door drive arm structure according to claim 4, characterized in that: The follower-rotating driven body (101) is a first bevel gear fixedly connected to the head end of the swing arm assembly (1); the follower-rotating driven assembly (203) comprises a second bevel gear (2031) and a swing arm rotating connection portion (2032) connected in sequence; the swing arm rotating connection portion (2032) is rotationally connected to the tail end of the swing arm assembly (1); the first bevel gear and the second bevel gear (2031) are respectively engaged with the two ends of the double-headed bevel gear transmission shaft (3042) to form a bevel gear transmission pair.

6. The rotary outward-swing sliding door drive arm structure according to claim 5, characterized in that: The axis of the double-headed bevel gear transmission shaft (3042) is parallel to the axis of the first output shaft (3032), the axis of the first bevel gear coincides with the axis of the vehicle body rotating connection part (102), and the axis of the first bevel gear is parallel to the axis of the second bevel gear (2031).

7. The rotary outward-swing sliding door drive arm structure according to claim 2, characterized in that: The sliding transmission assembly (305) further includes a connecting rod drive shaft (3052), which is in transmission connection with the second power input mechanism (3051). The connecting rod drive shaft (3052), the moving assembly (202) and the slide rail body (201) are sequentially connected in transmission connection, and the moving assembly (202) can convert rotational motion into linear motion.

8. The rotary outward-swing sliding door drive arm structure according to claim 7, characterized in that: The moving assembly (202) comprises a second worm (2021), a worm wheel nut sleeve assembly (2022) and a screw (2023); the second worm (2021) is fixedly connected to the connecting rod drive shaft (3052), and the screw (2023) is fixedly connected to the slide rail body (201); the outside of the worm wheel nut sleeve assembly (2022) is provided with worm gear teeth meshing with the second worm (2021), and the inside of the worm wheel nut sleeve assembly (2022) is provided with an internal thread threadedly connected to the screw (2023); the connecting rod drive shaft (3052), the second worm (2021) and the worm wheel nut sleeve assembly (2022) are all rotationally matched with the follower driven assembly (203).

9. The rotary outward-swing sliding door drive arm structure according to claim 8, characterized in that: The second power input mechanism (3051) comprises a first worm fixedly connected to the second output shaft (3033) and a first worm wheel fixedly connected to the connecting rod drive shaft (3052), and the first worm wheel is engaged with the first worm.

10. A vehicle, characterized in that: The invention comprises a vehicle door, a vehicle body and a rotating outward-swinging sliding door drive arm structure as claimed in any one of claims 1 to 9, wherein the head end of the swing arm assembly (1) is connected to the vehicle body through the vehicle body rotating connection part (102), and the slide rail body (201) is fixedly connected to the vehicle door.

11. The vehicle according to claim 10, characterized in that: When the vehicle door is a front door (4), the vehicle door is connected to the fender assembly (6) of the vehicle body; when the vehicle door is a rear door (5), the vehicle door is connected to the side panel assembly (7) of the vehicle body.

12. The vehicle according to claim 11, characterized in that: The front door (4) and the rear door (5) are in contact with each other on opposite sides to achieve a vehicle body without a B-pillar.

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