Vehicle and side door opening driver thereof

Abstract

The utility model discloses a vehicle and a side opening door driver thereof, which are used for driving a vehicle door to be opened and closed relative to a vehicle body. The vehicle door mounting assembly is used for being fixedly connected with a vehicle door; the vehicle door mounting assembly comprises a guide shell; the lead screw assembly is arranged in the vehicle door mounting assembly, the lead screw assembly comprises a lead screw and a lead screw nut matched with the lead screw, and the driving structure is connected with the lead screw and can drive the lead screw to rotate; the push rod assembly comprises a vehicle body installation support used for being fixedly connected with a vehicle body and a push rod connected with the vehicle body installation support, and the push rod is hinged to the lead screw nut; the lead screw nut is provided with a guide structure in guide fit with the guide shell, so that the lead screw nut moves in the extending direction of the lead screw in the rotating process of the lead screw. The lead screw nut is provided with a clearance fit face in clearance fit with the guide shell, an elastic block is arranged between the clearance fit face of the lead screw nut and the guide shell, and the elastic block is connected between the lead screw nut and the guide shell in an abutting mode.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile equipment, in particular to a vehicle and a side door driver thereof. Background Art

[0002] At present, among the electric side door actuators mass-produced on the market, the push rod type is one of the mainstream side door actuators, that is, one end of the push rod is fixedly connected to the car body, and the other end is hinged to the lead screw nut. The lead screw is arranged in the mechanism housing for rotation, and the spiral transmission is realized by driving the lead screw, and the lateral displacement of the lead screw nut and the hinged push rod is used to realize the opening and closing of the car door.

[0003] In the push-rod side door drive, the drive motor and transmission components (such as the screw assembly and push rod assembly) can be arranged in parallel, and the overall thickness of the mechanism will be smaller (generally within 40mm), making it an important implementation solution for electric side door drives.

[0004] Because the side-opening door actuator's gearbox installation and transmission, as well as the installation and transmission of the lead screw and lead screw nut, require a small amount of side play, the push rod connected to the vehicle body can wobble when the door is suspended. This wobble is exacerbated by the weight of the door itself.

[0005] Therefore, how to prevent the push rod from shaking is a problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0006] In view of this, the present invention provides a side-opening door driver to reduce the shaking of the push rod. The present invention also provides a vehicle having the side-opening door driver.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] A side door actuator for driving a vehicle door to open and close relative to a vehicle body, comprising:

[0009] Drive structure;

[0010] A vehicle door mounting assembly, the vehicle door mounting assembly being used for fixed connection with the vehicle door; the vehicle door mounting assembly comprising a guide housing;

[0011] A screw assembly, the screw assembly being disposed in the door mounting assembly, the screw assembly comprising a screw and a screw nut cooperating therewith, the drive structure being connected to the screw and capable of driving the screw to rotate;

[0012] A push rod assembly, the push rod assembly comprising a body mounting bracket for fixedly connecting to the body and a push rod connected to the body mounting bracket, the push rod being hinged to the screw nut;

[0013] in,

[0014] The screw nut has a guide structure that cooperates with the guide housing so that the screw nut is displaced along the extension direction of the screw during the rotation of the screw;

[0015] The screw nut has a clearance fitting surface that is clearance-fitted with the guide housing. An elastic block is provided between the clearance fitting surface of the screw nut and the guide housing. The elastic block abuts between the screw nut and the guide housing.

[0016] Optionally, in the above-mentioned side-opening door drive, the screw nut is fixedly connected to the elastic block and contacts the guide housing, so that the elastic block and the guide housing form a friction pair and provide friction damping force to the elastic block.

[0017] Optionally, in the above-mentioned side-opening door driver, the contact surface of the elastic block used to contact the guide shell is a smooth surface or a friction surface with a concave-convex structure.

[0018] Optionally, in the above-mentioned side-opening door driver, the friction surface is an arc-shaped surface, and it bulges outward in a direction away from the screw nut.

[0019] Optionally, in the above-mentioned side-opening door driver, the elastic block includes:

[0020] inner structure;

[0021] The outer layer structure is wrapped around the outer side of the inner layer structure and is used to contact the screw nut and / or the guide housing. The hardness of the inner layer structure is lower than that of the outer layer structure.

[0022] Optionally, in the above-mentioned side-opening door driver, the inner layer structure and the outer layer structure are assembled relative to each other;

[0023] Alternatively, the inner layer structure and the outer layer structure are integrally formed.

[0024] Optionally, in the above-mentioned side-opening door driver, the number of the elastic blocks is at least two and they are symmetrically arranged relative to the center line of the screw nut.

[0025] Optionally, in the above-mentioned side-opening door driver, the guide structure includes:

[0026] A top surface located at the top of the screw nut;

[0027] Located on the side surfaces of both sides of the screw nut, the clearance fitting surface is located between the top surface and the side surfaces;

[0028] The bottom surface is located at the bottom of the screw nut.

[0029] Optionally, in the above-mentioned side-opening door driver, a positioning structure or a clamping structure is provided between the elastic block and the screw nut.

[0030] The utility model also provides a vehicle, comprising a vehicle door, a vehicle body and a side-opening door driver, wherein the side-opening door driver is any one of the side-opening door drivers described above.

[0031] As can be seen from the above technical solution, the side-opening door actuator provided by the present invention has a door mounting assembly that is fixedly connected to the door, and a screw assembly disposed within the door mounting assembly. During the process of driving the door to open and close relative to the vehicle body, the drive structure is activated, causing the screw to rotate and drive the screw nut to move along the extension direction of the screw, and then the push rod is extended and retracted from the guide housing to achieve movement of the door relative to the vehicle body, completing the opening and closing operation of the door relative to the vehicle body. During this process, since there is an elastic block between the clearance fitting surface of the screw nut and the guide housing, and the elastic block abuts between the screw nut and the guide housing, the elastic block acts as an elastic support between the screw nut and the guide housing, thereby improving the stability of the screw nut and isolating the screw nut from the shaking factors that may be caused by the gaps in other structures (such as the gear box and the screw thread side clearance), thereby achieving the effect of isolating the push rod and minimizing the shaking of the push rod.

[0032] The present invention further provides a vehicle comprising a door, a vehicle body, and a side-opening door actuator, wherein the side-opening door actuator is any of the above-described side-opening door actuators. Since the above-described side-opening door actuators have the above-described technical effects, vehicles incorporating the above-described side-opening door actuators should also have the same technical effects, and thus will not be described in detail here, as all of them are within the scope of protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 A schematic diagram of the three-dimensional structure of a side-opening door driver provided by an embodiment of the present utility model;

[0035] Figure 2 A schematic diagram of the main structure of a side-opening door driver provided by an embodiment of the utility model;

[0036] Figure 3 For the Figure 2 Schematic diagram of the cross section of the AA surface;

[0037] Figure 4 This is an exploded schematic diagram of the guide housing, screw nut and elastic block provided in an embodiment of the present utility model;

[0038] Figure 5 This is a schematic diagram of the end surface structure of the guide housing, the screw nut and the elastic block provided in an embodiment of the present utility model;

[0039] Figure 6 An exploded schematic diagram of a screw nut and an elastic block provided in an embodiment of the present utility model;

[0040] Figure 7 Another exploded schematic diagram of the screw nut and elastic block provided in an embodiment of the present utility model. DETAILED DESCRIPTION

[0041] The utility model discloses a side-opening door driver to reduce the shaking of a push rod. The utility model also provides a vehicle with the side-opening door driver.

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] like Figure 1-Figure 5 As shown, an embodiment of the present invention provides a side-opening door driver for driving a vehicle door to open and close relative to a vehicle body, comprising a driving structure, a vehicle door mounting assembly 300, a screw assembly 400, and a push rod assembly 500. The vehicle door mounting assembly 300 is used to be fixedly connected to the vehicle door; the vehicle door mounting assembly 300 includes a guide housing 320; the screw assembly 400 is disposed in the vehicle door mounting assembly 300, the screw assembly 400 includes a screw 410 and a screw nut 420 mating therewith, the driving structure is connected to the screw 410 and can drive the screw 410 to rotate; the push rod assembly 500 includes a vehicle body mounting bracket 550 for fixedly connecting to the vehicle body and a push rod 520 connected to the vehicle body mounting bracket 550, the push rod 520 being hinged to the screw nut 420.

[0044] in,

[0045] The screw nut 420 has a guide structure that cooperates with the guide housing 320 so that the screw nut 420 moves along the extension direction of the screw 410 during the rotation of the screw 410;

[0046] The screw nut 420 has a clearance fit surface with the guide housing 320 . An elastic block 430 is disposed between the clearance fit surface of the screw nut 420 and the guide housing 320 . The elastic block 430 abuts between the screw nut 420 and the guide housing 320 .

[0047] The side-opening door driver provided by the embodiment of the present invention has a door mounting assembly 300 that is used to be fixedly connected to the door, and a screw assembly 400 is arranged in the door mounting assembly 300. In the process of driving the door to open and close relative to the vehicle body, the driving structure is started to rotate the screw 410 and drive the screw nut 420 to move along the extension direction of the screw 410, and then the push rod 520 is extended and retracted from the guide housing 320 to realize the movement of the door relative to the vehicle body, thereby completing the opening and closing operation of the door relative to the vehicle body. During this process, since there is an elastic block 430 between the clearance fitting surface of the screw nut 420 and the guide housing 320, and the elastic block 430 abuts between the screw nut 420 and the guide housing 320, the elastic block 430 plays an elastic supporting role between the screw nut 420 and the guide housing 320, thereby improving the stability of the screw nut 420, and isolating the screw nut 420 from the shaking factors that may be caused by the gaps in other structures (such as the gear box and the side clearance of the screw thread), thereby achieving the effect of isolation from the push rod 520, and minimizing the shaking of the push rod 520.

[0048] In this embodiment, the drive structure includes a drive assembly 100 and a transmission assembly 200, wherein the drive assembly 100 has a drive end; the input end of the transmission assembly 200 is connected to the drive end of the drive assembly 100, and the output end of the transmission assembly 200 is connected to the screw 410. Specifically, the drive assembly 100 may include a drive motor, and the transmission assembly 200 may be a gearbox including components such as a transmission gear set.

[0049] In a specific embodiment, the door mounting assembly 300 also includes a first end shell 310, a second end shell 330, a third end shell 340 and a door mounting bolt 350. The first end shell 310 is located at one end of the guide shell 320 and connects the guide shell 320 with the transmission assembly 200. The second end shell 330 and the third end shell 340 are located at the other end of the guide shell 320. The second end shell 330 and the third end shell 340 are cooperatively connected, and the third end shell 340 is fixedly connected to the door through the door mounting bolt 350.

[0050] Furthermore, one end of the screw rod 410 is rotatably mounted on the first end housing 310, while the other end of the screw rod 410 is rotatably mounted on the second end housing 330. The screw rod 410 is axially positioned and / or axially limited by a screw rod support 440 and a shaft retaining ring 450. A push rod 520 is movably connected to a vehicle body mounting bracket 550 via a bushing 530 and a stepped pin 540. The push rod 520 is hingedly connected to the screw nut 420 via a hinge ball 510.

[0051] To provide holding force when the door is suspended, the screw nut 420 is fixedly connected to the elastic block 430 and contacts the guide housing 320, forming a friction pair with the guide housing 320 and providing friction damping force to the elastic block 430. In other words, the friction force generated by the elastic block 430 on the screw nut 420 when it moves provides holding force after the door is opened to a certain angle, eliminating the need for response time. Furthermore, the elastic restoring force of the elastic block 430 can be adjusted by adjusting its material and dimensions, allowing customization based on different customer holding force requirements.

[0052] To increase friction, the contact surface of the elastic block 430 with the guide housing 320 is a friction surface having a concave-convex structure. The concave-convex structure on the friction surface can be a cross-shaped groove or a matrix of raised dots. Of course, the contact surface of the elastic block 430 with the guide housing 320 can also be a smooth surface.

[0053] In this embodiment, the friction surface is an arc-shaped surface, and it convexes in a direction away from the screw nut 420 .

[0054] To improve service life, elastic block 430 includes an inner layer structure and an outer layer structure. The outer layer structure wraps around the inner layer structure and is used to contact the screw nut 420 and / or guide housing 320. The inner layer structure has a lower hardness than the outer layer structure. This arrangement allows the friction surface to compress and deform toward the interior of elastic block 430, ensuring that the elastic restoring force can effectively act on the screw nut 420 and / or guide housing 320 while improving service life.

[0055] In the side-opening door driver provided by the embodiment of the present invention, the inner layer structure and the outer layer structure are assembled relative to each other. That is, the inner layer structure and the outer layer structure are processed separately and then assembled to form the elastic block 430.

[0056] The inner layer structure and the outer layer structure may also be formed integrally, for example, by injection molding (two-color injection molding) or the like.

[0057] To ensure the sliding stability of the screw nut 420, there are at least two elastic blocks 430, which are symmetrically arranged relative to the centerline of the screw nut 420. In this embodiment, the number of elastic blocks 430 is preferably set to two. Of course, the number of elastic blocks 430 can also be set to another number, or they can be arranged in a certain pattern along the outer circumference of the screw nut 420.

[0058] like Figure 5 As shown, the guide structure includes: a top surface located at the top of the screw nut 420; side surfaces located on both sides of the screw nut 420, with the clearance fit surface located between the top surface and the side surfaces; and a bottom surface located at the bottom of the screw nut 420. The guide structure includes the top, side, and bottom surfaces to ensure that the screw nut 420 is positioned radially along the screw 410, further ensuring the stability of the screw nut 420 during movement.

[0059] In order to facilitate assembly, a positioning structure or a clamping structure is provided between the elastic block 430 and the screw nut 420 .

[0060] Specifically, the elastic block 430 and the screw nut 420 can be connected by a concave-convex fitting structure. That is, the elastic block 430 has an inner side surface facing the screw nut 420, and the inner side surface is concave-convex fitted with the clearance fitting surface.

[0061] Of course, the elastic block and the screw nut can also be connected by gluing.

[0062] like Figure 6 As shown, in some embodiments, the lead screw nut 440 has a mounting portion (a groove or a socket, etc.) for mounting the elastic block 450. The elastic block 450 includes an outer structure 452 and an inner structure 451 disposed within the outer structure 452. The outer structure 452 and the inner structure 451 can be integrally formed by injection molding or other methods and then mounted to the mounting portion of the lead screw nut 440. Alternatively, the outer structure 452 can be mounted to the mounting portion of the lead screw nut 440, and the inner structure 451 can be positioned within the outer structure 452.

[0063] like Figure 7 As shown, in other embodiments, the screw nut assembly 460 has an outer layer structure of an elastic block. That is, the screw nut assembly 460 includes an integrally formed screw nut and outer layer structure of the elastic block, thereby improving the structural stability of the screw nut and the elastic block. In addition, the outer layer structure of the elastic block has a hollow structure, and the inner layer structure 470 of the elastic block is placed within the outer layer structure of the elastic block by injection molding or plugging, thereby completing the assembly of the screw nut and the elastic block.

[0064] The present invention further provides a vehicle comprising a door, a vehicle body, and a side-opening door actuator, wherein the side-opening door actuator is any of the above-described side-opening door actuators. Since the above-described side-opening door actuators have the above-described technical effects, vehicles incorporating the above-described side-opening door actuators should also have the same technical effects, and thus will not be described in detail here, as all of them are within the scope of protection.

[0065] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0066] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A side door driver for driving a door to open and close relative to a vehicle body, characterized in that: include: Drive structure; A vehicle door installation assembly (300), the vehicle door installation assembly (300) being used for fixed connection with the vehicle door; the vehicle door installation assembly (300) comprising a guide housing (320); A screw rod assembly (400), the screw rod assembly (400) being arranged in the vehicle door mounting assembly (300), the screw rod assembly (400) comprising a screw rod (410) and a screw rod nut (420) cooperating therewith, the driving structure being connected to the screw rod (410) and capable of driving the screw rod (410) to rotate; A push rod assembly (500), the push rod assembly (500) comprising a vehicle body mounting bracket (550) for fixed connection to the vehicle body and a push rod (520) connected to the vehicle body mounting bracket (550), the push rod (520) being hinged to the screw nut (420); in, The screw nut (420) has a guide structure that cooperates with the guide housing (320) so that the screw nut (420) is displaced along the extension direction of the screw (410) during the rotation of the screw (410); The screw nut (420) has a clearance fitting surface that is clearance-fitted with the guide housing (320), an elastic block (430) is provided between the clearance fitting surface of the screw nut (420) and the guide housing (320), and the elastic block (430) abuts between the screw nut (420) and the guide housing (320).

2. The side-opening door driver according to claim 1, characterized in that: The screw nut (420) is fixedly connected to the elastic block (430) and contacts the guide housing (320), so that the elastic block (430) and the guide housing (320) form a friction pair and provide friction damping force to the elastic block (430).

3. The side-opening door driver according to claim 2, characterized in that: The contact surface of the elastic block (430) for contacting the guide housing (320) is a smooth surface or a friction surface with a concave-convex structure.

4. The side-opening door driver according to claim 3, characterized in that: The friction surface is an arc-shaped surface, and is convex in a direction away from the screw nut (420).

5. The side-opening door driver according to claim 1, characterized in that: The elastic block (430) include: inner structure; An outer layer structure is wrapped around the outer side of the inner layer structure and is used to contact the screw nut (420) and / or the guide housing (320), and the hardness of the inner layer structure is lower than that of the outer layer structure.

6. The side-opening door driver according to claim 5, characterized in that: The inner layer structure is relatively assembled with the outer layer structure; Alternatively, the inner layer structure and the outer layer structure are integrally formed.

7. The side-opening door driver according to claim 1, characterized in that: The elastic blocks (430) are at least two in number and are symmetrically arranged relative to the center line of the screw nut (420).

8. The side-opening door driver according to claim 1, wherein: The guide structure comprises: A top surface located at the top of the screw nut (420); Located on the side surfaces of both sides of the screw nut (420), the clearance fitting surface is located between the top surface and the side surfaces; Located at the bottom surface of the bottom of the screw nut (420).

9. The side-opening door driver according to any one of claims 1 to 8, characterized in that: A positioning structure or a clamping structure is provided between the elastic block (430) and the screw nut (420).

10. A vehicle comprising a door, a body and a side door driver, characterized in that: The side-opening door driver is the side-opening door driver as described in any one of claims 1-9.

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