Vehicle door swing arm driving assembly and vehicle door

Abstract

The utility model discloses a vehicle door swing arm driving assembly which comprises a multi-connecting-rod hinge mechanism, a swing arm driving assembly and a swing arm driving assembly. The driving assembly is arranged on the vehicle body, connected with the driving rocker and used for driving the driving rocker to rotate, and then the opening and closing actions of the vehicle door are completed through the multi-connecting-rod hinge mechanism; the driving assembly comprises an actuator and a transmission mechanism arranged between the actuator and the driving rocker and used for power transmission, the actuator is provided with a torque output end, and the transmission mechanism is provided with a transmission part capable of transmitting torque in a bent state and a force transmission assembly arranged on a power transmission path. The force transmission assembly is used for transmitting torque to the driving rocker; the utility model further discloses a vehicle door with the vehicle door swing arm driving assembly. According to the vehicle door swing arm driving assembly structure, the requirement for the arrangement space of a hinge structure can be lowered, the overall arrangement difficulty of the driving structure is lowered, and the compactness of the whole vehicle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle door structure design, in particular to a vehicle door swing arm drive assembly and a vehicle door. Background Art

[0002] In order to solve the problem that traditional single-hinge horizontal doors cannot be opened in narrow spaces, and traditional sliding doors require high assembly precision for the design of guide rails, a multi-link hinge structure has been introduced in the relevant technology to complete the opening of the door. The multi-link hinge structure can reduce the door's demand for opening space and has relatively low assembly precision requirements. However, in the past, doors with multi-link hinge structures usually drive the rotation of the active rocker of the hinge mechanism through a drive motor provided on the hinge body in conjunction with a reduction gear set. Although this structure is convenient for overall assembly, the overall volume of the hinge is large and the requirements for layout space are high. In particular, in order to meet the door opening torque requirements, the motor occupies a large volume and is difficult to arrange, which is not conducive to the compact design of the vehicle. Therefore, it is necessary to improve the design of the relevant drive structure of the existing door swing arm in order to reduce the hinge structure's requirements for layout space, reduce the difficulty of arranging the drive structure as a whole, and improve the compactness of the vehicle. Utility Model Content

[0003] In view of this, an object of the present utility model is to provide a door swing arm drive assembly and a door, which can help reduce the requirements for the hinge structure layout space, reduce the difficulty of the overall layout of the drive structure, and improve the compactness of the vehicle.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vehicle door swing arm drive assembly, comprising: a multi-link hinge mechanism, having an active rocker that can be driven to rotate; a drive component, which is arranged on the vehicle body and connected to the active rocker to drive the rotation of the active rocker, and then completes the opening and closing action of the vehicle door through the multi-link hinge mechanism; the drive component includes an actuator and a transmission mechanism arranged between the actuator and the active rocker for power transmission, the actuator has a torque output end, the transmission mechanism has a transmission component that can transmit torque in a bent state and a force transmission component arranged on the power transmission path, and the force transmission component is used to transmit the torque to the active rocker.

[0005] Furthermore, the force transmission assembly includes a connecting seat fixedly connected to the vehicle body and a worm and a worm wheel arranged on the connecting seat, the worm wheel is transmission connected to the active rocker through a rotating shaft, and the worm is transmission connected to the torque output end of the actuator through a transmission component.

[0006] Furthermore, the actuator includes a driving motor and a reduction gear set arranged at an output end of the driving motor, the reduction gear set has a driven gear, and the transmission component includes a transmission belt arranged between the driven gear and the worm.

[0007] Furthermore, the axis of the driven gear is arranged perpendicular or approximately perpendicular to the body panel surface, and the axis of the worm is arranged parallel or approximately parallel to the body panel surface.

[0008] Furthermore, a drive belt mounting groove for mounting the drive belt is provided on the worm.

[0009] Furthermore, an angular limit groove is provided on the driven gear, and a limit pin is arranged in the angular limit groove. The limit pin is slidably engaged in the angular limit groove but remains fixed relative to the vehicle body.

[0010] Furthermore, the drive motor is fixedly mounted on the vehicle body through a motor mounting seat, and the limit pin is fixedly connected to the motor mounting seat.

[0011] Furthermore, the connecting seat is a connecting shell with an open structure, and the worm and the worm gear are arranged inside the connecting shell.

[0012] Furthermore, an avoidance notch for avoiding the drive belt is provided on the connecting shell.

[0013] A vehicle door includes the door swing arm drive assembly as described above.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] In the door swing arm drive assembly structure provided by the present utility model, by separately arranging the actuator part with a relatively large volume and the multi-link hinge mechanism, the space layout requirement of the hinge body installation part is effectively reduced. The setting of the transmission components and the force transmission components can ensure that the actuator part has a high layout flexibility and can be arranged at a suitable position on the vehicle body according to needs, reducing the layout difficulty of the actuator part; of course, in this application, the multi-link hinge mechanism is used to complete the opening and closing actions of the vehicle door, which can reduce the requirement for the vehicle door opening space, and at the same time, the requirement for the assembly accuracy is relatively low;

[0016] The vehicle door provided by the present utility model has good structural compactness, which is beneficial to improving the interior space of the vehicle.

[0017] Other advantages, objectives and features of the present utility model will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present utility model. The objectives and other advantages of the present utility model can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model

[0019] Figure 2Schematic diagram of the partial structure of the utility model

[0020] Reference numerals: 1 - driving rocker; 2 - vehicle body; 3 - actuator; 301 - reduction gear set; 301a - driven gear; 301a1 - angle limiting groove; 301b - limiting pin; 302 - motor mounting seat; 303 - driving motor; 4 - transmission mechanism; 401 - transmission component; 401a - transmission belt; 402 - force transmission component; 402a - connecting seat; 402a1 - avoidance notch; 402b - worm; 402b1 - transmission belt mounting groove; 402c - worm gear; 402d - rotating shaft. Specific embodiments

[0021] The following specific examples illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that the drawings provided in the following embodiments are only used to illustrate the basic concept of the present utility model. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0022] Please refer to Figure 1-2 , in this embodiment, a door swing arm drive assembly is disclosed, including: a multi-link hinge mechanism having a driving rocker 1 that can be driven to rotate. It can be understood that the multi-link hinge mechanism is usually arranged between the vehicle body 2 and the door. When the driving rocker 1 rotates, it drives the door to complete the opening and closing actions, which is a conventional swing arm hinge, such as a four-link hinge mechanism commonly found in the side door structure of an automobile, etc., which will not be elaborated here; a driving component arranged on the vehicle body 2 and connected to the driving rocker 1 for driving the rotation of the driving rocker 1, and then completing the opening and closing actions of the door through the multi-link hinge mechanism; the driving component includes an actuator 3 and a transmission mechanism 4 arranged between the actuator 3 and the driving rocker 1 for power transmission. The actuator 3 has a torque output end. The transmission mechanism 4 includes a transmission component 401 capable of transmitting torque in a bent state and a force transmission component 402 arranged on the power transmission path. The force transmission component 402 is used to transmit the torque to the driving rocker 1; it should be noted that there are various transmission components 401 capable of transmitting torque in a bent state, such as a chain drive structure, a belt drive structure, etc. Here, a belt drive structure is preferably adopted; similarly, there are various structures for the actuator 3 capable of outputting torque, such as a driving motor, a driving motor assembly integrated with a reducer, etc., which are not limited here; there can also be various force transmission components 402, which are specifically adapted according to the type of the transmission component 401;

[0023] In the above structural design, the space layout requirement of the hinge body installation part is effectively reduced by separating the relatively large actuator 3 from the multi-link hinge mechanism. The arrangement of the transmission component 401 and the force transmission component 402 can ensure that the actuator 3 has a high degree of layout flexibility and can be arranged at a suitable position of the vehicle body 2 as needed, thereby reducing the difficulty of arranging the actuator 3. Of course, the multi-link hinge mechanism is used in this structure to complete the opening and closing action of the door, which can reduce the demand for the door opening space and at the same time has relatively low requirements for assembly accuracy.

[0024] In this embodiment, the force transmission component 402 includes a connecting seat 402a fixedly connected to the vehicle body 2 and a worm 402b and a worm wheel 402c arranged on the connecting seat 402a, the worm wheel 402c is connected to the active rocker 1 through the rotating shaft 402d, and the worm 402b is connected to the torque output end of the actuator 3 through the transmission component 401; specifically, the connecting seat 402a can be fixed to the vehicle body 2 by welding, screw connection, etc., and the two ends of the rotating shaft 402d are fixedly connected to the worm wheel 402c and the active rocker 1 respectively. Of course, the rotating shaft 402d and the worm wheel 402c can also be an integral structure; it can be understood that the worm 402b and the worm wheel 402c are both rotatably installed, and the specific form is not repeated here; in this structural design, the force transmission component 402 is The worm gear mechanism 402 is arranged at the end of the transmission path of the transmission mechanism 4, and the output end of the worm gear mechanism 402 is directly connected to the active rocker 1, which is beneficial to simplify the layout of the transmission mechanism, has a good self-locking effect, and is not easy to fail; the worm 402b and the worm wheel 402c are connected to the vehicle body 2 through the connecting seat 402a, and the installation structure is simple; at the same time, by adopting the worm gear mechanism 402, it can play a role in deceleration and torque increase of the actuator 3, so that the actuator 3 can adopt a smaller specification, which is also beneficial to reduce the difficulty of arranging the actuator 3 and improve the compactness of the whole vehicle; in addition, the setting of the worm gear mechanism 402 can play a role of reverse self-locking. When the motor is accidentally powered off during the opening and closing process of the door, the door will not close involuntarily to cause a safety accident, thereby improving the safety of use.

[0025] In this embodiment, the actuator 3 includes a drive motor 303 and a reduction gear set 301 disposed at the output end of the drive motor 303. The reduction gear set 301 has a driven gear 301a. The transmission member 401 includes a transmission belt 401a disposed between the driven gear 301a and the worm 402b. Here, the drive motor is used to complete the control of the door opening and closing, which is easy for electric control. By setting the reduction gear set 301, the drive motor 3 can be further decelerated and torque-increased to meet the torque requirements for door opening and closing. The reduction gear set 301 can be arranged outside the drive motor 303 or integrated with the outside of the drive motor 303, such as a gear reducer, etc., which will not be elaborated here. In this structural design, the power transmission between the driven gear 301a and the worm 402b is completed by using the transmission belt 401a, which is beneficial to meet the power transmission in the case of a relatively large distance between the two shafts and has a high degree of layout freedom. At the same time, after the output speed of the drive motor 303 is decelerated by the reduction gear set 301 and then transmitted through the transmission belt 401a, it is a low-speed transmission, which is beneficial to ensuring the running stability of the transmission structure. In addition, the transmission noise in this structure is small, which is beneficial to reducing NVH.

[0026] In this embodiment, the axis of the driven gear 301a is perpendicular or approximately perpendicular to the plate surface of the vehicle body 2, and the axis of the worm 402b is parallel or approximately parallel to the plate surface of the vehicle body 2. That is, the driven gear 301a and the worm 402b are arranged vertically or approximately vertically and staggeredly. Specifically, here the transmission belt 401a is arranged in a semi-cross structure, and the transmission belt 401a is a friction belt, preferably a flat belt or a belt with a circular cross-section. This layout structure is beneficial to reducing the size in the thickness direction of the vehicle body, increasing the interior space of the vehicle, and further improving the compactness of the whole vehicle.

[0027] In this embodiment, a transmission belt mounting groove 402b1 for mounting the transmission belt 401a is provided on the worm 402b. By providing the transmission belt mounting groove 402b1, it is beneficial to prevent the transmission belt 401a from slipping during operation. The transmission belt mounting groove 402b1 is directly provided on the worm 402b, which is beneficial to simplifying the structure and further reducing the occupied space of the hinge body mounting part. It can be understood that the connection end of the transmission belt 401a and the driven gear 301a can also be installed by designing a mounting groove on the mounting shaft of the driven gear 301a, which will not be elaborated here.

[0028] In this embodiment, an angular limit groove 301a1 is provided on the driven gear 301a, and a limit pin 301b is arranged in the angular limit groove 301a1. The limit pin 301b is slidably fitted in the angular limit groove 301a1 but remains fixed relative to the vehicle body 2. Here, the limit pin 301b can be directly fixed on the vehicle body 2 or fixed on other fixed structures. In this structural design, by providing the angular limit groove 301a1 on the driven gear 301a and cooperating with the use of the limit pin 301b, an over-limit prevention function can be achieved, preventing the door from being opened or closed excessively, which is beneficial to improving the reliability of the structure in use.

[0029] In this embodiment, the drive motor 303 is fixedly installed on the vehicle body 2 through a motor mounting seat 302, and the limit pin 301b is fixedly connected to the motor mounting seat 302. The fixing method here is not limited, such as welding, screw connection, etc. In this structural design, the installation of the drive motor 303 is completed through the motor mounting seat 302, with a simple and reliable structure. Fixing the limit pin 301b on the motor mounting seat 302 is beneficial to simplifying the installation.

[0030] In this embodiment, the connecting seat 402a is a connecting shell with an open structure, and the worm 402b and the worm gear 402c are arranged inside the connecting shell. In this structural design, the installation of the worm 402b and the worm gear 402c is simple, and the structural design of the connecting shell has good strength, which is beneficial to the lightweight design of the overall vehicle.

[0031] In this embodiment, an avoidance notch 402a1 for avoiding the transmission belt 401a is provided on the connecting shell. Specifically, the avoidance notch 402a1 here is a U-shaped notch. By providing the avoidance notch 402a1, it is beneficial to the layout of the transmission belt 401a, which can ensure that the transmission belt 401a is arranged closer to the vehicle body, thereby facilitating further reduction of the vehicle body thickness and improving the overall compactness.

[0032] In this embodiment, a vehicle door is also disclosed, including the door swing arm drive assembly as described above. The overall structure of the vehicle door has good compactness, which is beneficial to improving the interior space of the vehicle.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A door swing arm drive assembly, characterized in that: include: A multi-link hinge mechanism having an active rocker (1) that can be driven to rotate; A driving assembly, which is arranged on the vehicle body (2) and connected to the active rocker (1) and is used to drive the active rocker (1) to rotate, thereby completing the opening and closing action of the vehicle door through a multi-link hinge mechanism; The driving assembly comprises an actuator (3) and a transmission mechanism (4) arranged between the actuator (3) and an active rocker (1) for power transmission, wherein the actuator (3) has a torque output end, and the transmission mechanism (4) comprises a transmission component (401) capable of transmitting torque in a bent state and a force transmission assembly (402) arranged on a power transmission path, wherein the force transmission assembly (402) is used to transmit torque to the active rocker (1).

2. The door swing arm drive assembly according to claim 1, characterized in that: The force transmission component (402) comprises a connection seat (402a) fixedly connected to the vehicle body (2) and a worm (402b) and a worm wheel (402c) arranged on the connection seat (402a); the worm wheel (402c) is transmission-connected to the active rocker (1) via a rotating shaft (402d); and the worm (402b) is transmission-connected to the torque output end of the actuator (3) via a transmission component (401).

3. The door swing arm drive assembly according to claim 2, characterized in that: The actuator (3) comprises a driving motor (303) and a reduction gear set (301) arranged at the output end of the driving motor (303); the reduction gear set (301) comprises a driven gear (301a); and the transmission component (401) comprises a transmission belt (401a) arranged between the driven gear (301a) and the worm (402b).

4. The door swing arm drive assembly according to claim 3, characterized in that: The axis of the driven gear (301a) is arranged perpendicularly or approximately perpendicularly to the surface of the vehicle body (2), and the axis of the worm (402b) is arranged parallelly or approximately parallel to the surface of the vehicle body (2).

5. The door swing arm drive assembly according to claim 3 or 4, characterized in that: The worm (402b) is provided with a transmission belt installation groove (402b1) for installing the transmission belt (401a).

6. The door swing arm drive assembly according to claim 3 or 4, characterized in that: The driven gear (301a) is provided with an angle limiting groove (301a1), a limiting pin (301b) is provided in the angle limiting groove (301a1), and the limiting pin (301b) is slidably fitted in the angle limiting groove (301a1) but remains fixed relative to the vehicle body (2).

7. The door swing arm drive assembly according to claim 6, characterized in that: The driving motor (303) is fixedly mounted on the vehicle body (2) via a motor mounting seat (302), and the limiting pin (301b) is fixedly connected to the motor mounting seat (302).

8. The door swing arm drive assembly according to claim 4, characterized in that: The connecting seat (402a) is a connecting shell with an open structure, and the worm (402b) and the worm wheel (402c) are arranged in the connecting shell.

9. The door swing arm drive assembly according to claim 8, characterized in that: The connection shell is provided with an avoidance notch (402a1) for avoiding the transmission belt (401a).

10. A vehicle door, characterized in that: It comprises a door swing arm drive assembly as described in any one of claims 1 to 9.

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