Electric vehicle door limiter and automobile

Abstract

The application relates to the technical field of automobile accessories, and provides an electric vehicle door stopper and an automobile. The stopper comprises a driving unit, a gear set connected to the output end of the driving unit, a transmission shaft and a gear ring of the gear set, a clutch assembly, a clutch cylinder and a friction plate of the clutch assembly, the clutch cylinder being fixedly connected with the gear ring, the friction plate being movably arranged in the clutch cylinder and movably abutting against the inner side wall of the clutch cylinder, and a push rod, which is in transmission connection with the transmission shaft and is connected to the door at one end. Compared with the prior art, the application has the advantages that the driving unit, the gear set and the clutch assembly are arranged, the friction plate on the gear set is separated from the side wall of the clutch cylinder after the door is static, the transmission shaft is disconnected with the output shaft of the driving unit, when the door is manually rotated, the force transmitted to the transmission shaft by the push rod is released through the rotation of the gear ring, and other components in the scheme are not damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile accessories, in particular to an electric vehicle door limiter and an automobile. Background Art

[0002] Currently, door systems used in vehicles and other transportation vehicles generally utilize hinges and limiters to achieve rotational opening and closing within a certain range, and rely primarily on manual operation. With technological advancements, intelligence and automation have become mainstream trends in the automotive industry, and consumers are demanding more convenient and technologically advanced door opening and closing methods. Consequently, the market is demanding stable and reliable automatic door actuators that occupy a smaller space, or offer higher manufacturing precision and greater cost advantages to meet the diverse needs of different application scenarios.

[0003] To address this need, a published Chinese invention patent (application publication number: CN113565377A) proposes an electric door stop device, the structure of which mainly includes a housing. The housing integrates a motor, a gear transmission system, a screw transmission mechanism, and a drive arm. The motor is securely mounted within the housing. The screw mechanism includes a screw and a screw nut mounted thereon. The screw can rotate freely within the housing, while the screw nut is mounted on the screw. The end of the drive arm is fixedly connected to the screw nut. Notably, the screw is arranged parallel to the motor, and the power output end of the motor is linked to the screw via a gear transmission mechanism.

[0004] This invention utilizes a trapezoidal lead screw drive design to effectively convert the motor's rotational motion into linear motion, leveraging the linear reciprocating motion of the lead screw nut to drive the drive arm. The parallel arrangement of the motor and lead screw nut results in a more compact overall structure, maximizing interior space utilization.

[0005] However, this solution has a potential problem. In an emergency situation where the car door needs to be closed manually quickly, forced operation may cause abnormal stress on mechanical components such as the motor, screw rod and gear transmission system inside the limit device, thereby increasing the risk of wear and even damage between the components. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide an electric vehicle door limiter and a vehicle in view of the current status of the prior art.

[0007] The technical solution adopted by the present invention to solve the above technical problems is: to provide an electric door stopper for controlling the rotation of a door on a car, the stopper comprising:

[0008] Drive unit;

[0009] a gear set connected to an output end of the drive unit, the gear set comprising a transmission shaft and a ring gear, the gear set having a first output state when the transmission shaft rotates and a second output state when the ring gear rotates;

[0010] A clutch assembly, the clutch assembly comprising a clutch wheel cylinder and a friction plate, the clutch wheel cylinder being fixedly connected to the ring gear, the friction plate being movably disposed in the clutch wheel cylinder and movably abutting against an inner side wall of the clutch wheel cylinder;

[0011] a push rod, the push rod being in driving connection with the transmission shaft and having one end connected to the vehicle door, and being used to drive the vehicle door to rotate relative to the vehicle when the gear set is in the first output state;

[0012] The gear set may be in the first output state due to the friction plate abutting against the inner side wall of the clutch wheel cylinder, and may be in the second output state due to the friction plate being separated from the inner side wall of the clutch wheel cylinder.

[0013] In the above-mentioned electric door limiter, the clutch assembly includes two clutch shoes symmetrically arranged in the clutch wheel cylinder, the two clutch shoes are connected by an elastic member and a driving block is inserted in the middle for rotation, and each clutch shoe is fixed with a friction plate. The two clutch shoes can be separated from each other when the driving block rotates and drive the elastic member to be in a stretched state, and after the driving block is reset, they are reset under the pull of the elastic member.

[0014] In the above-mentioned electric door limiter, the driving block is a cuboid structure, and the surface formed by the corresponding long sides of the cuboid structure movably abuts against the side wall of the clutch shoe.

[0015] In the above-mentioned electric door stopper, the clutch assembly includes:

[0016] Housing 1, having a first mounting cavity and a second mounting cavity therein, wherein the gear set is mounted in the first mounting cavity;

[0017] Motor 1, which is fixedly mounted in the second mounting cavity, and a worm is fixedly mounted at the output end of the motor 1;

[0018] a screw, which is rotatably arranged in the first mounting cavity and has an axial direction perpendicular to the axial direction of the worm;

[0019] a worm wheel fixedly mounted on the outside of the lead screw and meshing with the worm;

[0020] A connecting block, which is threadedly connected to the outer side of the screw rod, and a receiving groove is provided on the connecting block;

[0021] A connecting rod, one end of which is fixed to the driving block, and the other end of the connecting rod is provided with a movable column, and the movable column is movably inserted into the accommodating groove;

[0022] The second shell is connected to the first shell. A rotating column is provided on the side of the connecting rod away from the driving block. The rotating column is movably inserted into the second shell.

[0023] In the above-mentioned electric door limiter, the inner wall of the second shell extends toward the first shell to form a stabilizing column, and the stabilizing column is inserted between the two clutch shoes and arranged opposite to the driving block.

[0024] In the above-mentioned electric door stopper, the gear set includes:

[0025] a sun gear fixedly connected to an output end of the drive unit;

[0026] a planet carrier, which is sleeved on the outside of the sun gear and rotatably disposed in the ring gear, and the transmission shaft is fixed to an end of the planet carrier away from the drive unit;

[0027] A plurality of planetary gears are rotatably arranged on the planetary carrier, and the planetary gears are meshed with both the ring gear and the sun gear.

[0028] The above-mentioned electric door limiter also includes a winding wheel, a first pull rope and a second pull rope, the winding wheel is fixed on the transmission shaft, and the outer wall of the winding wheel is provided with a first thread and a second thread with opposite rotation directions, one end of the first pull rope and the second pull rope are both fixed on the winding wheel, the first pull rope is wound on the first thread and the other end is fixed on the side of the push rod away from the vehicle door, the second pull rope is wound on the second thread and the other end is fixed on the side of the push rod close to the vehicle door, and the winding wheel is used to tighten the first pull rope and release the second pull rope when it rotates, or release the first pull rope and tighten the second pull rope.

[0029] The electric door stopper further includes:

[0030] A third housing is connected to the clutch assembly, wherein a movable channel is provided on the third housing, and the push rod is movably provided in the movable channel;

[0031] A pulley, which is rotatably arranged on the housing 3 and movably abuts against the push rod;

[0032] The limiting column is movably arranged in the shell body 3, and the limiting parts are arranged at intervals on the push rod. The limiting column movably abuts against the limiting parts.

[0033] The above-mentioned electric door limiter also includes a support frame, which is located on the side of the push rod close to the vehicle door and wrapped around the outside of the push rod. A baffle is inserted into the support frame, and the limit column is movably arranged in the support frame and a spring is arranged between the limit column and the baffle. The spring is used to make the limit column and the limit part press tightly.

[0034] The present invention solves the above technical problem and further provides an automobile, comprising the above electric door limiter.

[0035] Compared with the prior art, the advantage of the present invention lies in that by setting a drive unit, a gear set and a clutch assembly, when the car door needs to be rotated, the friction plate provided on the clutch assembly is pressed against the clutch wheel cylinder fixedly connected to the ring gear on the gear set, so that the drive unit can drive the car door to rotate through the push rod. After the car door is stationary, the friction plate on the gear set is separated from the side wall of the clutch wheel cylinder, so that the drive shaft is disconnected from the output shaft of the drive unit. When the car door is manually rotated, the force transmitted to the drive shaft by the push rod is released through the rotation of the ring gear, and no damage is caused to other components in the present solution, thereby ensuring the service life of each component. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a three-dimensional diagram of this scheme;

[0037] Figure 2 It is a three-dimensional diagram of part of the structure in the figure;

[0038] Figure 3 It is a partial cross-sectional view of this scheme;

[0039] Figure 4 It is a three-dimensional diagram of the clutch assembly part mechanism;

[0040] Figure 5 yes Figure 4 A stereogram in another direction;

[0041] Figure 6 It is a plan view of the partial structure of the clutch assembly when the friction plate is not resting on the clutch wheel cylinder;

[0042] Figure 7 It is a plan view of the clutch assembly part structure when the friction plate is against the clutch wheel cylinder;

[0043] Figure 8 This is a three-dimensional diagram when the limiting column rests on the limiting portion;

[0044] Figure 9 It is the solid of shell one;

[0045] Figure 10 It is a three-dimensional diagram of the connecting rod.

[0046] In the figure, 1. drive unit; 2. motor 2; 3. housing 4; 4. foam; 5. gear set; 6. transmission shaft; 7. ring gear; 8. clutch assembly; 9. clutch wheel cylinder; 10. friction plate; 11. push rod; 12. clutch shoe; 13. elastic member; 14. housing 1; 15. first mounting cavity; 16. second mounting cavity; 17. motor 1; 18. worm; 19. lead screw; 20. worm wheel; 21. connecting block; 22. receiving groove ; 23. Connecting rod; 24. Moving column; 25. Shell 2; 26. Rotating column; 27. Stabilizing column; 28. Sun gear; 29. ​​Planetary carrier; 30. Planetary gear; 31. Winding wheel; 32. First pull rope; 33. Second pull rope; 34. Shell 3; 35. Moving channel; 36. Pulley; 37. Limiting column; 38. Limiting part; 39. Support frame; 40. Baffle; 41. Spring; 42. Door connector; 43. Drive block. DETAILED DESCRIPTION

[0047] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0048] like Figures 1 to 10 As shown, in this solution, the application of the door stopper in the automobile and the specific structure of the door stopper are mainly described in detail.

[0049] An electric door limiter is designed to control the rotational movement of a vehicle door. The limiter consists of the following parts: a drive unit 1; a gear set 5, which is connected to the output end of the drive unit 1 and has a transmission shaft 6 and a ring gear 7 structure. The gear set 5 has a first output state when the transmission shaft 6 rotates, and a second output state when the ring gear 7 rotates; a clutch assembly 8, which includes a clutch wheel cylinder 9 and a friction plate 10. The clutch wheel cylinder 9 is fixedly connected to the ring gear 7, and the friction plate 10 is movably installed inside the clutch wheel cylinder 9 and can movably abut against the inner wall of the clutch wheel cylinder 9; a push rod 11 device, which is in transmission cooperation with the transmission shaft 6 and has one end connected to the vehicle door. When the gear set 5 is in the first output state, it is responsible for driving the vehicle door to rotate relative to the vehicle; the gear set 5 can maintain the first output state or switch to the second output state by the contact or disengagement of the friction plate 10 with the inner wall of the clutch wheel cylinder 9.

[0050] During installation, one end of the push rod 11 is hingedly mounted on the door connector 42. When the drive unit 1 receives a door opening or closing signal, the push rod 11 will correspondingly drive the door to rotate relative to the vehicle.

[0051] Specifically, the drive unit 1 includes a housing 4 3, a motor 2 2 and a foam 4. The housing 4 3 is used to fix the motor 2 2, and the foam 4 provides buffer protection for the motor 2 2 to ensure its normal operation. The gear set 5 has two different output states. When the motor 2 2 receives the door opening command, the gear set 5 enters the first output state. At this time, the friction plate 10 is tightly attached to the clutch wheel cylinder 9 to fix it. Since the clutch wheel cylinder 9 is fixedly connected to the ring gear 7, the motor 2 2 drives the transmission shaft 6 to move, and then drives the car door to rotate through the push rod 11. When the car door is rotated to the preset position, the clutch assembly 8 switches to the second output state, the friction plate 10 is separated from the inner wall of the clutch wheel cylinder 9, and the motor 2 2 stops running. At this time, the ring gear 7 is no longer fixed. When the car door is manually turned, the force transmitted to the transmission shaft 6 by the push rod 11 is released through the rotation of the ring gear 7, which will not cause damage to other components in this solution, thereby ensuring the service life of each component.

[0052] The clutch assembly 8 is further subdivided into two clutch shoes 12 symmetrically mounted within the clutch wheel cylinder 9. They are connected by an elastic member 13, with a drive block 43 rotatably mounted between them. A friction plate 10 is affixed to each clutch shoe 12. When the drive block 43 rotates, the two clutch shoes 12 separate, causing the elastic member 13 to be stretched. When the drive block 43 returns to its original position, the tension of the elastic member 13 causes the clutch shoes 12 to return to their original position.

[0053] When Motor 2 is not operating, the drive block 43 rests between the two clutch shoes 12. The elastic member 13 forces the two clutch shoes 12 toward each other, separating the friction plate 10 from the clutch wheel cylinder 9. To rotate the door, the drive block 43 activates and presses the friction plates 10 on the two clutch shoes 12 against the clutch wheel cylinder 9, locking the clutch wheel cylinder 9 and the ring gear 7. Motor 2 then drives the push rod 11 via the drive shaft 6. In this preferred embodiment, the elastic member 13 can be a spring or rubber.

[0054] In this embodiment, the driving block 43 has a rectangular structure, and its opposite long sides are movably abutted against the side walls of the clutch shoes 12. In this way, when the driving block 43 rotates, it can diagonally push the two clutch shoes 12 to move in the clutch wheel cylinder 9, thereby achieving effective tightening of the friction plate 10 and the clutch wheel cylinder 9.

[0055] Further, the clutch assembly 8 further comprises a housing 14, in which a first mounting cavity 15 and a second mounting cavity 16 are formed, the gear set 5 is mounted in the first mounting cavity 15, a motor 17 is fixed in the second mounting cavity 16, an output end of the motor 17 is fixedly connected with a worm 18, a screw rod 19 is rotatably arranged in the first mounting cavity 15, an axis direction of the screw rod 19 is perpendicular to an axis direction of the worm 18, a worm wheel 20 is fixed on the screw rod 19 and is engaged with the worm 18, a connecting block 21 is threadedly connected on the screw rod 19, the connecting block 21 is provided with a receiving groove 22, a connecting rod 23 is fixed at one end of the connecting rod 23 and is provided with a moving column 24 at the other end, the moving column 24 is movably inserted in the receiving groove 22, a housing 25 is connected to the housing 14, the connecting rod 23 is provided with a rotating column 26 at a side away from the driving block 43, the rotating column 26 is movably inserted in the housing 25.

[0056] When the door needs to be driven to rotate relative to the automobile, the motor 17 is first started, the worm 18 is rotated to drive the worm wheel 20 to rotate synchronously. The worm wheel 20 is fixed with the screw rod 19, so that the rotation of the worm wheel 20 drives the screw rod 19 to rotate. Since the connecting block 21 is threadedly connected with the screw rod 19, the rotation of the screw rod 19 drives the connecting block 21 to move along the axis direction of the screw rod 19. When the connecting block 21 moves, the connecting rod 23 drives the driving block 43 to rotate, and the rotating column 26 on the connecting rod 23 is used to limit the linear displacement of the driving block 43, so that only the rotation of the driving block 43 is allowed.

[0057] Considering that the driving block 43 is arranged on one side between the two clutch shoes 12, in order to ensure that the driving block 43 can effectively drive the friction plate 10 to abut against the clutch drum 9 when the driving block 43 rotates, a stabilizing column 27 is extended from an inner wall of the housing 25 towards the housing 14, the stabilizing column 27 is inserted between the two clutch shoes 12 and is arranged opposite to the driving block 43, so as to stabilize the other side of the two clutch shoes 12 and prevent the two clutch shoes 12 from shaking.

[0058] Preferably, the driving block 43 is provided with a pressing column at each of two corners where the driving block 43 movably abuts against the two clutch shoes 12, the pressing column is used to replace the driving block 43 to bear the abrasion with the clutch shoes 12, so as to prolong the service life of the driving block 43. The pressing column is further provided with a pressing portion above the end face of the two clutch shoes 12, so as to prevent the driving block 43 from moving along the axis direction of the clutch drum 9 when the driving block 43 rotates.

[0059] The gear set 5 specifically comprises: a sun gear 28, which is fixedly connected to an output end of the driving unit 1; a planet carrier 29, which is sleeved outside the sun gear 28 and is rotatably arranged in the ring gear 7, the transmission shaft 6 is fixed at one end of the planet carrier 29 away from the driving unit 1; a plurality of planet gears 30, which are rotatably arranged on the planet carrier 29 and are engaged with the ring gear 7 and the sun gear 28.

[0060] When the second motor 2 is working, the sun gear 28 drives the entire transmission system to run, and through the speed reduction and torque increasing characteristics of the planetary gear 30 mechanism, the torque output by the second motor 2 is efficiently transmitted to the push rod 11, so as to realize the stable control of the rotation of the vehicle door.

[0061] In addition, the scheme also includes a winding wheel 31, a first pull rope 32 and a second pull rope 33, the winding wheel 31 is fixed on the transmission shaft 6, the outer side wall of the winding wheel 31 is provided with first and second threads with opposite rotation directions, one end of the first pull rope 32 and the second pull rope 33 are fixed on the winding wheel 31, the first pull rope 32 is wound on the first thread, and the other end is fixed on the side of the push rod 11 away from the vehicle door, the second pull rope 33 is wound on the second thread, and the other end is fixed on the side of the push rod 11 close to the vehicle door. When the winding wheel 31 rotates, the first pull rope 32 can be tightened and the second pull rope 33 can be released, and vice versa.

[0062] The rotation of the transmission shaft 6 drives the winding wheel 31 to rotate, and since the first and second threads on the winding wheel 31 have opposite rotation directions, when the winding wheel 31 rotates, the first and second pull ropes 32 and 33 are in opposite states, thereby driving the push rod 11 to move.

[0063] Furthermore, the scheme is configured with: a third housing 34 connected with the clutch assembly 8, a moving channel 35 is arranged in the third housing 34, and the push rod 11 is movably arranged in the moving channel 35; a pulley 36 rotatably arranged on the third housing 34 and capable of movably contacting the push rod 11; a limiting column 37 movably arranged in the third housing 34, and a limiting portion 38 is arranged on the push rod 11 in a spaced manner, and the limiting column 37 movably contacts the limiting portion 38.

[0064] The moving channel 35 in the third housing 34 and the pulley 36 ensure the accuracy of the moving direction of the push rod 11, and the limiting column 37 is used to keep the position fixed after the vehicle door is opened to a preset angle, preventing the vehicle door from rotating by itself under the action of gravity or external wind force.

[0065] Finally, a support frame 39 is arranged on the side of the push rod 11 close to the vehicle door and surrounds the outside of the push rod 11, a baffle 40 is embedded in the support frame 39, the limiting column 37 is movably arranged in the support frame 39, a spring 41 is arranged between the limiting column 37 and the baffle 40, and the spring 41 keeps the limiting column 37 and the limiting portion 38 in close abutment.

[0066] The support frame 39 is used to install and fix the limiting column 37, and the combined design of the baffle 40 and the spring 41 realizes the flexible connection of the limiting column 37 in the support frame 39, ensuring the close abutment of the limiting column 37 and the limiting portion 38.

[0067] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0068] In addition, in the present invention, descriptions such as "first," "second," and "one" are for descriptive purposes only and should not be understood to indicate or imply their relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0069] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0070] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0071] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them with similar methods without departing from the scope defined by the spirit of the present invention.

Claims

1. An electric door stopper for controlling the rotation of a car door, characterized in that: The limiter comprises: Drive unit; a gear set connected to an output end of the drive unit, the gear set comprising a transmission shaft and a ring gear, the gear set having a first output state when the transmission shaft rotates and a second output state when the ring gear rotates; A clutch assembly, the clutch assembly comprising a clutch wheel cylinder and a friction plate, the clutch wheel cylinder being fixedly connected to the ring gear, the friction plate being movably disposed in the clutch wheel cylinder and movably abutting against an inner side wall of the clutch wheel cylinder; a push rod, the push rod being in driving connection with the transmission shaft and having one end connected to the vehicle door, and being used to drive the vehicle door to rotate relative to the vehicle when the gear set is in the first output state; The gear set is capable of being in the first output state due to the friction plate abutting against the inner side wall of the clutch wheel cylinder, and being in the second output state due to the friction plate being separated from the inner side wall of the clutch wheel cylinder; The clutch assembly includes two clutch shoes symmetrically arranged in the clutch wheel cylinder, the two clutch shoes are connected by an elastic member and a driving block is rotatably inserted between them, and each clutch shoe is fixed with a friction plate. The two clutch shoes can separate from each other when the driving block rotates and drive the elastic member to be in a stretched state, and can be reset under the pull of the elastic member after the driving block is reset; The clutch assembly includes: a shell 1, which is provided with a first mounting cavity and a second mounting cavity, and the gear set is installed in the first mounting cavity; a motor 1, which is fixed in the second mounting cavity, and a worm is fixed at the output end of the motor 1; a screw rod, which is rotatably arranged in the first mounting cavity and its axial direction is perpendicular to the axial direction of the worm; a worm wheel, which is fixed on the outside of the screw rod and meshes with the worm; a connecting block, which is threadedly connected to the outside of the screw rod, and a receiving groove is provided on the connecting block; a connecting rod, one end of which is fixed on the driving block, and the other end of the connecting rod is provided with a movable column, and the movable column is movably inserted in the receiving groove; a shell 2, which is connected to the shell 1, and a rotating column is provided on the side of the connecting rod away from the driving block, and the rotating column is movably inserted on the shell 2.

2. The electric vehicle door stopper according to claim 1, characterized in that: The driving block is a cuboid structure, and the surface formed by the corresponding long sides of the cuboid structure movably abuts against the side wall of the clutch shoe.

3. The electric vehicle door stopper according to claim 1, characterized in that: The inner wall of the second shell extends toward the first shell to form a stabilizing column. The stabilizing column is inserted between the two clutch shoes and is arranged opposite to the driving block.

4. The electric vehicle door stopper according to claim 1, characterized in that: The gear set includes: a sun gear fixedly connected to an output end of the drive unit; a planet carrier, which is sleeved on the outside of the sun gear and rotatably disposed in the ring gear, and the transmission shaft is fixed to an end of the planet carrier away from the drive unit; A plurality of planetary gears are rotatably arranged on the planetary carrier, and the planetary gears are meshed with both the ring gear and the sun gear.

5. The electric vehicle door stopper according to claim 1, characterized in that: It also includes a winding wheel, a first pull rope and a second pull rope, the winding wheel is fixed on the transmission shaft, the outer side wall of the winding wheel is provided with a first thread and a second thread with opposite rotation directions, one end of the first pull rope and the second pull rope are both fixed on the winding wheel, the first pull rope is wound on the first thread and the other end is fixed on the side of the push rod away from the car door, the second pull rope is wound on the second thread and the other end is fixed on the side of the push rod close to the car door, and the winding wheel is used to tighten the first pull rope and release the second pull rope when rotating.

6. The electric vehicle door stopper according to claim 1, characterized in that: Also includes: A third housing is connected to the clutch assembly, wherein a movable channel is provided on the third housing, and the push rod is movably provided in the movable channel; A pulley, which is rotatably arranged on the housing 3 and movably abuts against the push rod; The limiting column is movably arranged in the shell body 3, and the limiting parts are arranged at intervals on the push rod. The limiting column movably abuts against the limiting parts.

7. The electric vehicle door stopper according to claim 6, characterized in that: It also includes a support frame, which is located on the side of the push rod close to the vehicle door and wrapped around the outside of the push rod. A baffle is inserted into the support frame. The limiting column is movably arranged in the support frame and a spring is arranged between the limiting column and the baffle. The spring is used to make the limiting column press against the limiting part.

8. An automobile, characterized in that: It comprises an electric vehicle door limiter as described in any one of claims 1 to 7.

Images