Electric side opening door driving device and vehicle

Abstract

The utility model belongs to the technical field of vehicles, and discloses an electric side opening door driving device and a vehicle, the electric side opening door driving device comprises a shell, a driving piece, a ball socket assembly and a screw rod, a stator surrounds a rotor, the stator is fixedly connected to the shell, the rotor is in electromagnetic coupling connection with the stator, and a ball socket sleeve is rotationally connected with the shell; the outer ring of the ball socket sleeve is fixedly connected with the rotor, the ball socket is fixedly connected with the inner ring of the ball socket sleeve, and the lead screw rotationally penetrates through the ball socket and is connected to the vehicle door and can axially move relative to the shell to open and close the vehicle door. The structure is simple, the driving part and the ball socket assembly are compact in structure and convenient to assemble, the installation space is saved, the driving part directly drives so that the lead screw can axially stretch out and draw back relative to the shell to control the vehicle door to be opened or closed, the transmission efficiency is high, the number of parts is small, cost is low, and later maintenance is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to an electric side-opening door drive device and vehicle. Background Technology

[0002] Car door designs typically use a single-side opening method, which has the following limitations: limited space for getting in and out, especially for rear passengers, making entry and exit inconvenient; lack of intelligent control when opening the door, making it unable to adapt to complex environments, such as narrow spaces or parking on slopes; and lack of effective isolation from wind noise and dust, affecting interior comfort.

[0003] To address the aforementioned issues, automatic opening and closing of automotive side doors has become an important development direction in automotive electrification and intelligentization. By integrating sensors, controllers, and electric actuators, intelligent control of the doors is achieved, enhancing convenience and intelligence. However, traditional electric side door drive devices have a complex structure, occupy installation space, and have a large number of parts, resulting in high costs.

[0004] Therefore, there is an urgent need for electric side-opening door drive devices and vehicles to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an electric side-opening door drive device. The drive component and ball socket assembly have a compact structure, are easy to assemble, save installation space, have high transmission efficiency, few parts, low cost, and are easy to maintain and repair later.

[0006] To address the aforementioned problems in the existing technology, this utility model adopts the following technical solution:

[0007] An electric side-opening door drive mechanism includes:

[0008] shell;

[0009] A drive unit, located within the housing, includes a rotor and a stator, the stator surrounding the rotor and fixedly connected to the housing, and the rotor and the stator being electromagnetically coupled together.

[0010] A ball socket assembly is located inside the housing. The ball socket assembly includes a ball socket and a ball socket sleeve. The ball socket sleeve is rotatably connected to the housing, and the outer ring of the ball socket sleeve is fixedly connected to the rotor. The ball socket is fixedly connected to the inner ring of the ball socket sleeve.

[0011] A lead screw is rotatably inserted through the ball socket and connected to the door. The lead screw can move axially relative to the housing to open and close the door.

[0012] Preferably, the ball socket assembly further includes a pin, the ball socket sleeve has a connecting hole, the ball socket has a fixing hole, and the pin is fixedly inserted into the connecting hole and the fixing hole to fix the ball socket sleeve and the ball socket relative to each other.

[0013] Preferably, the fixing hole has an elongated shape.

[0014] Preferably, the ball socket sleeve includes a first ball socket portion and a second ball socket portion, which are snapped together.

[0015] Preferably, the outer casing includes a housing and an end cap, the end cap being disposed on the housing, the end cap having a first connecting hole, the housing having a second connecting hole, and the lead screw passing through the first connecting hole and the second connecting hole.

[0016] Preferably, the electric side-opening door drive device further includes a first bearing, which is located on one side of the drive member along the axial direction of the lead screw. The outer ring of the first bearing is fixedly connected to the housing, and the inner ring of the first bearing is fixedly connected to the ball joint sleeve.

[0017] Preferably, the electric side-opening door drive device further includes a second bearing. Along the axial direction of the lead screw, the second bearing is located on the other side of the drive member. The outer ring of the second bearing is fixedly connected to the end cover, and the inner ring of the second bearing is fixedly connected to the ball joint sleeve.

[0018] Preferably, the electric side-opening door drive device further includes a pull ring, which is disposed at one end of the lead screw and is fixedly connected to the door.

[0019] Preferably, the electric side-opening door drive device further includes a stop member disposed at the other end of the lead screw, the stop member being used to limit the axial displacement of the lead screw relative to the housing.

[0020] To achieve the above objectives, the present invention also provides a vehicle, including a door and the aforementioned electric side-opening door drive device, wherein the electric side-opening door drive device is fixedly connected to the door.

[0021] The beneficial effects of this utility model are as follows:

[0022] The electric side-opening door drive device provided by this utility model has a drive component located inside the housing. The drive component includes a rotor and a stator. The stator surrounds the rotor and is fixedly connected to the housing. The rotor and stator are electromagnetically coupled together. A ball-and-socket assembly is located inside the housing. The ball-and-socket assembly includes a ball and a ball sleeve. The ball sleeve is rotatably connected to the housing, and the outer ring of the ball sleeve is fixedly connected to the rotor. The ball and the inner ring of the ball sleeve are fixedly connected. A lead screw rotatably passes through the ball and is connected to the door. The lead screw can move axially relative to the housing to open and close the door. Compared with traditional electric side-opening door drive devices, this device has a simpler structure, a more compact structure between the drive component and the ball-and-socket assembly, is easier to assemble, and saves installation space. When the stator is energized, a rotating magnetic field is formed inside the stator according to the principle of electromagnetic induction. This magnetic field interacts electromagnetically with the rotor, driving the rotor to rotate in a specific direction. Then, the rotor drives the ball socket sleeve and the ball socket to rotate synchronously. The ball socket cooperates with the lead screw drive so that the lead screw can move axially relative to the outer shell under the rotation of the ball socket, thereby controlling the opening or closing of the car door. It has high transmission efficiency, few parts, low cost, and is easy to maintain later.

[0023] The vehicle provided by this utility model includes a car door and an electric side-opening door drive device, which is fixedly connected to the car door. A stator surrounds a rotor and is fixedly connected to a housing. The rotor and stator are electromagnetically coupled together. A ball joint sleeve is rotatably connected to the housing, and the outer ring of the ball joint sleeve is fixedly connected to the rotor. The ball joint is fixedly connected to the inner ring of the ball joint sleeve. A lead screw rotatably passes through the ball joint and is connected to the car door. The lead screw can move axially relative to the housing to open and close the car door. The electric side-opening door drive device has a compact structure, is easy to assemble, saves installation space, has few parts, low cost, and facilitates later maintenance and repair of the vehicle door. Attached Figure Description

[0024] Figure 1 A schematic diagram of the structure of the electric side-opening door drive device provided in an embodiment of this utility model;

[0025] Figure 2 A cross-sectional view of the electric side-opening door drive device provided in an embodiment of this utility model;

[0026] Figure 3 An exploded view of the ball-and-socket assembly provided in an embodiment of this utility model.

[0027] Figure label:

[0028] 1. Outer shell; 11. Housing; 12. End cap;

[0029] 2. Drive components; 21. Rotor; 22. Stator;

[0030] 3. Ball socket assembly; 31. Ball socket; 32. Ball socket sleeve; 321. First sleeve part; 322. Second sleeve part; 33. Pin;

[0031] 4. Lead screw;

[0032] 5. First bearing;

[0033] 6. Second bearing;

[0034] 7. Pull ring;

[0035] 8. Stop and positioning components. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0040] like Figures 1-3As shown, the electric side-opening door drive device includes a housing 1, a drive component 2, a ball joint assembly 3, and a lead screw 4. The drive component 2 is located inside the housing 1 and includes a rotor 21 and a stator 22. The stator 22 surrounds the rotor 21 and is fixedly connected to the housing 1. The rotor 21 and stator 22 are electromagnetically coupled together. The ball joint assembly 3 is located inside the housing 1 and includes a ball joint 31 and a ball joint sleeve 32. The ball joint sleeve 32 is rotatably connected to the housing 1, and its outer ring is fixedly connected to the rotor 21. The ball joint 31 is fixedly connected to the inner ring of the ball joint sleeve 32. The lead screw 4 rotatably passes through the ball joint 31 and is connected to the door. The lead screw 4 can move axially relative to the housing 1 to open and close the door.

[0041] A lead screw 4 passes through the outer casing 1 and connects to the door. The drive component 2 and ball joint assembly 3 are both housed within the outer casing 1. The ball joint assembly 3 is fixedly sleeved on the lead screw 4, and the drive component 2 is sleeved on the ball joint assembly 3. The ball joint 31 has an internal threaded structure that mates with the lead screw 4, forming a rotatable transmission pair. A ball joint sleeve 32 is fixedly sleeved on the ball joint 31 and rotatably engages with the outer casing 1. The drive component 2 is a motor, and the permanent magnet is a rotor 21. The rotor 21 is fixedly sleeved on the ball joint sleeve 32. The outer ring of the stator 22 is fixedly connected to the outer casing 1, and the stator 22 and rotor 21 are connected via electromagnetic coupling to generate a driving force. The above fixing methods can include welding, interference fit, and adhesive bonding. Compared to traditional electric side-opening door drive devices, this design is simpler, with a compact structure for the drive component 2 and ball joint assembly 3, facilitating assembly and saving installation space.

[0042] The working process of the electric side-opening door drive device is as follows: Alternating current is supplied to the stator 22 through the wiring harness. According to the principle of electromagnetic induction, a rotating magnetic field is formed inside the stator 22. This magnetic field interacts electromagnetically with the rotor 21. That is, torque is generated between the polarities of the magnetic field of the stator 22 and the rotor 21 through magnetic attraction and repulsion. This electromagnetic torque drives the rotor 21 to overcome mechanical resistance and rotate in a directional manner. Then, the rotor 21 drives the ball socket sleeve 32 and the ball socket 31 to rotate synchronously. The ball socket 31 is engaged with the lead screw 4 so that the lead screw 4 can move axially relative to the outer shell 1 under the rotation of the ball socket 31, thereby controlling the opening or closing of the door. This method has high transmission efficiency, few parts, low cost, and is easy to maintain and repair later.

[0043] Furthermore, referring to Figure 3The ball socket assembly 3 also includes a pin 33. The ball socket sleeve 32 has a connecting hole, and the ball socket 31 has a fixing hole. The pin 33 is fixedly inserted into the connecting hole and the fixing hole to fix the ball socket sleeve 32 and the ball socket 31 relatively. The ball socket sleeve 32 includes a first ball socket portion 321 and a second ball socket portion 322, which are interlocked. The ball socket sleeve 32 has a symmetrical structure for easy installation. One end of the pin 33 is fixedly inserted into the connecting hole of the ball socket sleeve 32, and the other end of the pin 33 is fixedly inserted into the fixing hole of the ball socket 31, ensuring no relative movement between the ball socket 31 and the ball socket sleeve 32. The fixing hole has an elongated structure. After one end of the pin 33 is fixed to the connecting hole, the other end of the pin 33 can be easily fixed through the elongated fixing hole, avoiding misalignment between the fixing hole and the connecting hole, thus ensuring high adaptability.

[0044] Furthermore, referring to Figures 1-2 The outer casing 1 includes a housing 11 and an end cap 12. The end cap 12 covers the housing 11 and has a first connecting hole. The housing 11 has a second connecting hole, and the lead screw 4 passes through the first and second connecting holes. The end cap 12 is installed on the housing 11 by bolts or other connecting parts. Driven by the drive unit 2 and the ball joint assembly 3, the lead screw 4 can be axially displaced relative to the outer casing 1 through the first and second connecting holes to open or close the door.

[0045] Furthermore, continue to refer to Figures 1-2 The electric side-opening door drive device also includes a first bearing 5 and a second bearing 6. Along the axis of the lead screw 4, the first bearing 5 and the second bearing 6 are located on both sides of the drive member 2. The outer ring of the first bearing 5 is fixedly connected to the housing 11, and the inner ring of the first bearing 5 is fixedly connected to the ball socket sleeve 32. The outer ring of the second bearing 6 is fixedly connected to the end cover 12, and the inner ring of the second bearing 6 is fixedly connected to the ball socket sleeve 32. The ball socket sleeve 32 rotates within the housing 1 through the first bearing 5 and the second bearing 6.

[0046] Furthermore, continue to refer to Figures 1-2 The electric side-opening door drive device also includes a pull ring 7 and a stop member 8. The pull ring 7 and the stop member 8 are respectively disposed at both ends of the lead screw 4. The pull ring 7 is fixedly connected to the door, and the stop member 8 is used to limit the axial displacement of the lead screw 4 relative to the housing 1. The lead screw 4 is connected to the door through the pull ring 7. The axial displacement of the lead screw 4 relative to the housing 1 allows it to extend or retract, thereby opening or closing the door. The stop member 8 is used to limit the maximum opening and closing angle of the door.

[0047] This embodiment also provides a vehicle, including a door and the aforementioned electric side-opening door drive device, which is fixedly connected to the door. A stator 22 surrounds a rotor 21 and is fixedly connected to a housing 1. The rotor 21 and stator 22 are electromagnetically coupled. A ball socket 32 ​​is rotatably connected to the housing 1, with its outer ring fixedly connected to the rotor 21. A ball socket 31 is fixedly connected to the inner ring of the ball socket 32. A lead screw 4 rotatably passes through the ball socket 31 and is connected to the door. The lead screw 4 can move axially relative to the housing 1 to open and close the door. The electric side-opening door drive device has a compact structure, is easy to assemble, saves installation space, has few parts, low cost, and facilitates later maintenance and repair of the vehicle door.

[0048] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An electric side door opening and closing drive apparatus characterized by comprising: The electric side door opening drive device comprises: a housing (1); a driving member (2) located in the housing (1), the driving member (2) comprising a rotor (21) and a stator (22), the stator (22) surrounding the rotor (21), and the stator (22) being fixedly connected to the housing (1), the rotor (21) being electromagnetically coupled to the stator (22); a ball socket assembly (3) located in the housing (1), the ball socket assembly (3) comprising a ball socket (31) and a ball socket sleeve (32), the ball socket sleeve (32) being rotatably connected to the housing (1), and the outer ring of the ball socket sleeve (32) being fixedly connected to the rotor (21), the ball socket (31) being fixedly connected to the inner ring of the ball socket sleeve (32); a lead screw (4) rotatably penetrating the ball socket (31) and being connected to a door, the lead screw (4) being capable of axially moving relative to the housing (1) to open and close the door.

2. The electric side door opening and closing apparatus according to claim 1, wherein The ball socket assembly (3) further comprises a latch (33), the ball socket sleeve (32) being provided with a connecting hole, the ball socket (31) being provided with a fixing hole, and the latch (33) being fixedly inserted into the connecting hole and the fixing hole to relatively fix the ball socket sleeve (32) and the ball socket (31).

3. The electric side door opening and closing apparatus according to claim 2, wherein The fixing hole is in a long strip structure.

4. The electric side door opening and closing apparatus according to claim 1, wherein The ball socket sleeve (32) comprises a first ball socket sleeve part (321) and a second ball socket sleeve part (322), and the first ball socket sleeve part (321) and the second ball socket sleeve part (322) are oppositely arranged.

5. The electric side door opening and closing apparatus according to claim 1, wherein The housing (1) comprises a housing body (11) and an end cover (12), the end cover (12) being provided on the housing body (11), the end cover (12) being provided with a first communication hole, and the housing body (11) being provided with a second communication hole, the lead screw (4) penetrating the first communication hole and the second communication hole.

6. The electric side door opening and closing apparatus according to claim 5, wherein The electric side door opening drive device further comprises a first bearing (5) located on one side of the driving member (2) along the axial direction of the lead screw (4), the outer ring of the first bearing (5) being fixedly connected to the housing body (11), and the inner ring of the first bearing (5) being fixedly connected to the ball socket sleeve (32).

7. The electric side door opening and closing apparatus according to claim 5, wherein The electric side door opening drive device further comprises a second bearing (6) located on the other side of the driving member (2) along the axial direction of the lead screw (4), the outer ring of the second bearing (6) being fixedly connected to the end cover (12), and the inner ring of the second bearing (6) being fixedly connected to the ball socket sleeve (32).

8. The electric side door opening and closing apparatus according to claim 1, wherein The electric side door opening drive device further comprises a pull ring (7) provided on one end of the lead screw (4), the pull ring (7) being fixedly connected to the door.

9. The electric side door opening and closing apparatus according to claim 1, wherein The electric side door opening drive device further comprises a stop member (8) provided on the other end of the lead screw (4), the stop member (8) being used for limiting the axial displacement of the lead screw (4) relative to the housing (1).

10. Vehicle, characterized in that The electric side door opening drive device is fixedly connected to the door.

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