A side door rotating opening and closing drive device and intelligent door opening system

Abstract

This utility model discloses a side door rotating opening and closing drive device and an intelligent door opening system, belonging to the field of side door drive technology. It includes a push rod assembly, a nut assembly, a lead screw, a housing, a gearbox, and a driver. The gearbox transmits power from the driver to the lead screw. The nut assembly is threadedly connected to the lead screw. One end of the push rod assembly is connected to the nut assembly. The housing surrounds the push rod assembly and the nut assembly. The nut assembly includes a threaded sleeve and a ball head pin. The threaded sleeve is threaded onto the lead screw, and the ball head pin is disposed on the threaded sleeve. The push rod assembly includes a push-pull rod and a ball cup. The ball cup is disposed at one end of the push-pull rod, and the ball head pin falls into the ball cup to form a ball-pin connection. The other end of the push-pull rod is connected to the side door. The ball-pin connection can accommodate a certain angle of offset, preventing side door deformation from affecting the drive, and improving service life and stability.

Description

Technical Field

[0001] This utility model relates to the field of side door drive technology, specifically to a side door rotating opening and closing drive device and an intelligent door opening system. Background Technology

[0002] With the popularization of intelligent driving technology, electric door systems are gradually upgrading from basic functions to intelligent doors that enhance user experience. Intelligent doors support diverse interactive scenarios, such as automatic obstacle avoidance opening, welcome mode, and remote control opening. This places higher demands on the compactness, reliability, and environmental adaptability of the drive unit. However, existing side door rotation drive units still have significant drawbacks: they use a combination of brushed motors and electromagnetic brakes or a separate brushless motor for drive, resulting in an excessively large overall size that is difficult to fit into the compact door cavity space, especially in models with hidden door handles; their transmission mechanisms mostly rely on rigid connections, and when the door is subjected to external impact, such as user error in manually pushing or pulling, or deformation due to long-term use, the lack of stress compensation can easily lead to mechanism jamming, thread wear, or even motor overload and burnout. Therefore, there is an urgent need for a highly integrated side door rotation opening and closing drive unit with deformation adaptive capabilities and multimodal interaction to overcome the current technological bottlenecks. Utility Model Content

[0003] One of the purposes of this utility model is to provide a side door rotation opening and closing drive device, which solves the problems of large size of the side door opening and closing drive device and easy jamming of the drive after the door is deformed.

[0004] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0005] A side door rotating opening and closing drive device includes a push rod assembly, a nut assembly, a lead screw, a housing, a gearbox, and a driver. The gearbox transmits power from the driver to the lead screw. The nut assembly is threadedly connected to the lead screw. One end of the push rod assembly is connected to the nut assembly. The housing surrounds the push rod assembly and the nut assembly. The nut assembly includes a threaded sleeve and a ball head pin. The threaded sleeve is threaded onto the lead screw, and the ball head pin is disposed on the threaded sleeve. The push rod assembly includes a push-pull rod and a ball cup. The ball cup is disposed at one end of the push-pull rod, and the ball head pin falls into the ball cup to form a ball-pin connection. The other end of the push-pull rod is connected to the side door. The ball-pin connection can accommodate a certain angle of offset, preventing side door deformation from affecting the drive, and improving service life and stability.

[0006] Furthermore, the pusher assembly also includes a bushing disposed on the inner wall of the ball cup. The bushing is replaceable, which reduces friction in the ball pin connection, making maintenance easier and more comfortable.

[0007] Furthermore, the push rod assembly also includes a base plate, and the bottom wall of the ball cup has an opening. The base plate is detachably connected to the opening, which allows for adjustment of the tightness of the ball pin connection, facilitating installation and debugging.

[0008] Furthermore, the nut assembly also includes a guide seat, in which the threaded sleeve is embedded for guiding the movement of the ball cup when the lead screw drives it, resulting in more accurate and stable movement.

[0009] Furthermore, both the lead screw and the push rod assembly are housed within the housing, the gearbox is located at one end of the housing, the driver is arranged side by side with the lead screw, the push rod assembly is located between the lead screw and the driver, and the other end of the push rod assembly extends out of the housing, which is dustproof and makes the overall structure compact, reducing the space occupied during installation.

[0010] Furthermore, the driver is provided with a motor output shaft, a fixing hole, and a connector. The motor output shaft is located at one end of the driver, the connector is located at the other end of the driver, and the fixing hole is located around the motor output shaft on the end face of the driver, which shortens the overall length and makes the overall structure compact.

[0011] Furthermore, a buffer sleeve is fitted on the output shaft of the motor, and the buffer sleeve is sleeved with the input shaft on the gearbox to buffer the connection and absorb vibration during transmission.

[0012] Preferably, it also includes fasteners that pass through the gearbox and are connected to the fixing hole to fix the driver on the gearbox. The fasteners are not exposed, reducing the space occupied during installation.

[0013] Furthermore, it also includes a controller, which is pluggably connected to the tail of the driver. The controller includes a first connector, a second connector, and a housing. The housing is stepped, and the first connector and the second connector are respectively connected in the same direction to different steps of the housing. A groove is provided on the middle side wall of the housing, and a mounting hole is provided at the end of the housing. The mounting hole is used for bolts to be inserted and fixed to the housing. The controller is replaceable, and the drive part can be used alone or in combination. It can be used in different vehicle models and saves the overall vehicle manufacturing cost by sharing parts.

[0014] The second objective of this utility model is to provide an intelligent door opening system that solves the problem of existing intelligent door opening systems easily getting stuck.

[0015] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0016] An intelligent door opening system includes the aforementioned side door rotation opening and closing drive device, used to receive external door opening signals in different ways to realize the opening and closing of the vehicle door.

[0017] The beneficial effects of this utility model are as follows:

[0018] (1) The side door rotation opening and closing drive device is provided with a ball pin connection formed by the ball head pin of the nut assembly and the ball cup of the push rod assembly, so that the push rod can adaptively adjust the angle during the rotation of the side door, avoiding mechanical jamming or wear caused by the deviation of the side door movement trajectory. The ball pin connection allows the push rod to deflect slightly in the horizontal and vertical directions, reducing the assembly accuracy requirements of the screw and nut assembly. At the same time, the contact surface between the ball head pin and the ball cup is spherical, and the bushing can further disperse stress and extend the service life of the components.

[0019] (2) The controller on the side door rotating opening and closing drive device is fixed to the rear of the drive unit by a plug-in connection and multiple connectors are integrated through a stepped housing to achieve quick disassembly and functional expansion; the plug-in connection design allows the controller to be replaced without disassembling the drive unit, reducing maintenance costs; the layered layout of the stepped housing allows the cable interfaces to be arranged in a concentrated manner, reducing the space occupied inside the housing; the push-pull component is set between the lead screw and the drive unit, extending outward from the housing, shortening the overall length and making the overall structure compact, suitable for installation and use in car doors with narrow interior space.

[0020] (3) The motor output shaft of the side door rotating opening and closing drive device is equipped with a buffer sleeve. The buffer is made of elastic material. The buffer sleeve is installed between the motor output shaft and the gearbox input shaft. It can absorb the axial deviation of the motor output shaft and the vibration during operation. The output power of the motor is more stable and the shaft is less likely to be damaged when jammed, thus reducing the failure rate of the motor.

[0021] (4) The nut assembly of the side door rotating opening and closing drive device includes a guide seat with a threaded sleeve. The guide seat is slidably connected in the housing and can play a guiding role when the push rod moves, preventing the bias force on the push rod from directly acting on the nut and screw, causing abnormal noise and jamming, improving the stability of the push rod movement and extending its service life. Attached Figure Description

[0022] Figure 1 Axonometric drawing of the side door rotation opening and closing drive device provided by this utility model;

[0023] Figure 2 Top view of the side door rotating opening and closing drive device provided by this utility model;

[0024] Figure 3 for Figure 2 Cross-sectional view along the upper AA line;

[0025] Figure 4This is a front view of the push rod assembly provided by this utility model;

[0026] Figure 5 for Figure 4 Cross-sectional view of the upper BB line;

[0027] Figure 6 A front view of the drive and gearbox assembly provided by this utility model;

[0028] Figure 7 for Figure 6 Top CC line cross-section;

[0029] Figure 8 Axonometric view of the outer casing provided for this utility model;

[0030] Figure 9 Isometric drawing of the controller provided by this utility model;

[0031] Figure 10 An isometric view of the driver provided by this utility model;

[0032] Figure 11 This is an isometric view of the buffer sleeve provided by this utility model.

[0033] Figure label:

[0034] 1. Push rod assembly; 11. Push-pull rod; 12. Ball cup; 13. Cover plate; 14. Base plate; 15. Bushing; 2. Nut assembly; 21. Ball head pin; 22. Screw sleeve; 23. Guide seat; 3. Lead screw; 4. Housing; 41. Housing wall; 42. Pad plate; 43. Base; 431. Screw hole; 5. Gearbox; 51. Fastener; 52. Buffer sleeve; 53. Input shaft; 6. Driver; 61. Fixing hole; 62. Motor output shaft; 63. Socket; 7. Controller; 71. Housing; 711. Mounting hole; 72. First connector; 73. Middle side wall; 731. Glue groove; 74. Second connector. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0036] Example 1

[0037] like Figures 1-11As shown, this embodiment discloses a side door rotating opening and closing drive device, including a push rod assembly 1, a nut assembly 2, a lead screw 3, a housing 4, a gearbox 5, a driver 6, and a controller 7. The gearbox 5 transmits the power of the driver 6 to the lead screw 3. The nut assembly 2 is threadedly connected to the lead screw 3. The rotation of the lead screw 3 drives the nut assembly 2 to move, thereby driving the push rod assembly 1 to complete the push-pull door opening action. The movement distance is accurate and the force is sufficient. One end of the push rod assembly 1 is connected to the nut assembly 2. The housing 4 surrounds the push rod assembly 1 and the nut assembly 2 for protection. The nut assembly 2 includes a threaded sleeve 22 and a ball head. Pin 21 and threaded sleeve 22 are threadedly connected to lead screw 3. Ball head pin 21 is set on threaded sleeve 22. Push rod assembly 1 includes push-pull rod 11 and ball cup 12. Ball cup 12 is set on one end of push-pull rod 11. Ball head pin 21 falls into ball cup 12 to form ball pin connection. The other end of push-pull rod 11 is connected to side door. The contact surface of ball pin connection is spherical, so that push-pull rod 11 can adaptively adjust the angle during side door rotation, avoiding mechanical jamming or wear caused by deviation of side door movement trajectory. Even if the door is slightly deformed after long-term use, it can still open and close normally automatically, ensuring sufficient service life.

[0038] Among them, driver 6 is a brushless motor, which is small in size, has stable output, and high control precision.

[0039] Preferably, the opening on the ball cup 12 is sized to control the swing range of the other end of the push-pull rod 11, and the other end of the push-pull rod 11 extends from the end face of the housing 4.

[0040] Furthermore, the push rod assembly 1 also includes a bushing 15, which is disposed on the inner wall of the ball cup 12 and covers the ball head pin 21. The bushing 15 is made of a self-lubricating material, which can reduce the friction of the ball head connection and extend its service life.

[0041] Preferably, the push rod assembly 1 further includes a base plate 14 and a cover plate 13. The bottom wall of the ball cup 12 is provided with an opening. The base plate 14 is detachably connected to the opening for adjusting the tightness of the ball pin connection. The cover plate 13 is fixed to the outside of the base plate 14 for fixing the base plate 14.

[0042] Preferably, the nut assembly 2 further includes a guide seat 23, in which the threaded sleeve 22 is embedded. The guide seat 23 slides with the inside of the housing 4 to form a sliding fit, which is used to guide the movement of the threaded sleeve 22 and improve the stability of the output movement.

[0043] Furthermore, both the lead screw 3 and the push rod assembly 1 are housed inside the housing 4, the gearbox 5 is located at one end of the housing 4, and the driver 6 is arranged side by side with the lead screw 3, which shortens the length and facilitates installation. The push rod assembly 1 is located between the lead screw 3 and the driver 6, and the other end of the push rod assembly 1 extends out of the housing 4, making full use of the space of the housing 4 and shortening the overall width. Moreover, since only the end of the push rod assembly 1 is outside the housing 4, it is not easily damaged by external impacts and thus has higher stability in use.

[0044] Furthermore, the driver 6 is provided with a motor output shaft 62, a fixing hole 61, and a connector 63. The motor output shaft 62 is located on one end of the driver 6, and the connector 63 is located on the other end of the driver 6 for connecting external cables. The fixing hole 61 is located around the motor output shaft 62 on the end face of the driver 6. The fixing hole 61 is hidden inside the housing 71 and the driver 6, resulting in a compact structure.

[0045] Furthermore, a buffer sleeve 52 is fitted onto the motor output shaft 62. The buffer sleeve 52 is fitted onto the input shaft 53 on the gearbox 5. The buffer sleeve 52 is made of an elastic material, specifically PUR material. By compressing the buffer sleeve 52, the motor output shaft 62 and the input shaft 53 of the gearbox 5 are tightly connected, and the buffer sleeve 52 can also absorb the vibration generated when transmitting power, thus improving the comfort of use. The buffer sleeve 52 consists of a connecting part and a boss part. A through hole is provided in the middle for connecting the motor output shaft 62. The connecting part is used to transmit power and absorb vibration, and the boss part is used to position the overlap length of the motor output shaft 62 and the input shaft 53 of the gearbox 5.

[0046] Preferably, it also includes a fastener 51, which passes through the gearbox 5 and is connected to the fixing hole 61 to fix the driver 6 on the gearbox 5. The fastener 51 is hidden inside the housing 4, and the overall structure is compact with little space required for installation.

[0047] More preferably, the controller 7 is pluggably connected to the tail of the driver 6. Different types of controllers 7 can be assembled according to different door opening functions, and the mechanical drive part can be used independently. The controller 7 includes a first connector 72, a second connector 74, and a housing 71. The housing 71 is set in a stepped shape. The first connector 72 and the second connector 74 are respectively connected to different steps of the housing 71 in the same direction. A glue groove 731 is provided on the middle side wall 73 of the housing 71. The middle side wall 73 refers to the side wall of the housing 71 located between the two connectors and facing the outer shell 4. A mounting plate is provided at the end of the housing 71. Hole 711 is used for bolts to be inserted and fixed to the outer shell 4. The axis of the mounting hole 711 intersects the installation direction of the two connectors, which serves to prevent them from loosening. The second connector 74 is connected to the socket 63 to achieve quick plug-in connection and facilitate replacement. The second connector 74 is connected to the external cable. The control board is installed inside the shell 71. The control board directly controls the action of the driver 6 to realize the door opening action. The glue groove 731 in the middle side wall 73 is filled with glue and then connected to the outer shell 4 to improve the connection strength and improve the dustproof and waterproof rating, achieving an overall IP67 protection level.

[0048] More preferably, the housing 4 includes a housing wall 41, a pad 42 and a base 43. The pad 42 and the housing wall 41 form a enclosure for the housing 4. The base 43 is connected to the pad 42. The base 43 is provided with screw holes 431. The screw holes 431 are slotted holes for bolts to be connected to the outside, which shortens the length of the installation part and makes the overall structure compact.

[0049] The working process of the side door rotary opening and closing drive device is as follows:

[0050] After receiving the door opening control signal, the controller 7 controls the driver 6 to rotate. The power output by the driver 6 is transmitted to the lead screw 3 through the gearbox 5. The rotation of the lead screw 3 drives the ball head pin 21 to move along the length of the lead screw 3 through the screw sleeve 22. The ball head pin 21 drives the push-pull rod 11 to push and pull outward through the ball cup 12, thereby opening or closing the car door.

[0051] Example 2

[0052] This embodiment also discloses an intelligent door opening system, including a side door rotating opening and closing drive device and a sensing end. The sensing end is electrically connected to the controller 7. The sensing end includes intelligent key signals, voice recognition signals, knock recognition signals, foot kick sensing signals and gesture sensing signals. The system is input to the controller 7 through vehicle signals. The controller 7 controls the drive 6 to achieve door opening action control.

[0053] Among them, the controller 7 can collect IGN signals, power supply voltage signals and key signals, and communicate with the outside through the CAN bus to provide feedback on the working status, so as to achieve closed-loop control of door opening.

[0054] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and any modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A side door rotating opening and closing drive device, comprising a push rod assembly (1), a nut assembly (2), a lead screw (3), a housing (4), a gearbox (5), and a driver (6), wherein the gearbox (5) transmits the power of the driver (6) to the lead screw (3), the nut assembly (2) is threadedly connected to the lead screw (3), one end of the push rod assembly (1) is connected to the nut assembly (2), and the housing (4) surrounds the push rod assembly (1) and the nut assembly (2), characterized in that: The nut assembly (2) includes a threaded sleeve (22) and a ball head pin (21). The threaded sleeve (22) is threaded onto the lead screw (3). The ball head pin (21) is disposed on the threaded sleeve (22). The push rod assembly (1) includes a push rod (11) and a ball cup (12). The ball cup (12) is disposed on one end of the push rod (11). The ball head pin (21) falls into the ball cup (12) to form a ball-pin connection. The other end of the push rod (11) is connected to the side door.

2. The side door rotating opening and closing drive device according to claim 1, characterized in that: The push rod assembly (1) also includes a bushing (15) disposed on the inner wall of the ball cup (12).

3. The side door rotating opening and closing drive device according to claim 2, characterized in that: The push rod assembly (1) also includes a base plate (14), and the bottom wall of the ball cup (12) is provided with an opening, and the base plate (14) is detachably connected to the opening.

4. The side door rotating opening and closing drive device according to claim 1, characterized in that: The nut assembly (2) also includes a guide seat (23), and the threaded sleeve (22) is embedded in the guide seat (23).

5. The side door rotating opening and closing drive device according to claim 1, characterized in that: The lead screw (3) and the push rod assembly (1) are both disposed inside the housing (4). The gearbox (5) is disposed at one end of the housing (4). The driver (6) is disposed side by side with the lead screw (3). The push rod assembly (1) is disposed between the lead screw (3) and the driver (6), and the other end of the push rod assembly (1) extends out from the housing (4).

6. The side door rotating opening and closing drive device according to claim 5, characterized in that: The driver (6) is provided with a motor output shaft (62), a fixing hole (61) and a connector (63). The motor output shaft (62) is located on one end of the driver (6), the connector (63) is located on the other end of the driver (6), and the fixing hole (61) is located around the motor output shaft (62) on the end face of the driver (6).

7. The side door rotating opening and closing drive device according to claim 6, characterized in that: A buffer sleeve (52) is fitted on the output shaft (62) of the motor, and the buffer sleeve (52) is fitted with the input shaft (53) on the gearbox (5).

8. The side door rotating opening and closing drive device according to claim 6, characterized in that: It also includes a fastener (51) that passes through the gearbox (5) and is connected to the fixing hole (61) to fix the driver (6) on the gearbox (5).

9. The side door rotating opening and closing drive device according to claim 1, characterized in that: It also includes a controller (7), which is pluggably connected to the tail of the driver (6). The controller (7) includes a first connector (72), a second connector (74), and a housing (71). The housing (71) is stepped. The first connector (72) and the second connector (74) are connected in the same direction to different steps of the housing (71). A glue groove (731) is provided on the middle side wall (73) of the housing (71). A mounting hole (711) is provided at the end of the housing (71). The mounting hole (711) is used for bolts to be inserted and fixed to the outer shell (4).

10. An intelligent door opening system characterized by: Includes the side door rotating opening and closing drive device as described in any one of claims 1-9.

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