Electric limiting stopper for intelligent vehicle door

Abstract

The utility model provides an electric limiting stopper for an intelligent vehicle door. The electric limiting stopper comprises a main body mechanism and a connecting mechanism, the main body mechanism comprises a shell, a motor is installed on one side of the shell, a worm is installed on an output shaft of the motor, a vehicle door connecting sleeve is fixedly connected to one side of the shell, a helical tooth worm gear is installed in the shell, and the helical tooth worm gear is meshed with the worm. The connecting mechanism comprises a supporting rod, the supporting rod is arranged on one side of the interior of the vehicle door connecting sleeve, and one end of the supporting rod is fixedly connected with a reversing pin shaft; the worm and the helical tooth worm gear are used as a speed reduction structure, the helical tooth worm gear is used for fixing, the lead screw outputs push-pull force, the structure is simplified, moving parts are reduced, the supporting rod can freely move in the axial direction of the reversing pin shaft and can adapt to the angle difference of the automobile door, and therefore the automobile door speed reduction device is convenient to install, simple in structure, low in operation noise and high in reliability. The electric limiting stopper can bear high-strength impact, and the occupied space of the electric limiting stopper can be reduced.

Description

Technical Field

[0001] The utility model relates to a limiter, in particular to an electric limiter for an intelligent vehicle door, belonging to the technical field of intelligent vehicle doors. Background Art

[0002] The function of a vehicle door opening limiter is to limit the opening degree of the vehicle door. On the one hand, it can limit the maximum opening degree of the vehicle door to prevent the vehicle door from opening too wide. On the other hand, it can keep the vehicle door open when needed. For example, when the vehicle is parked on a slope or in a general wind, the vehicle door will not close automatically. The common vehicle door opening limiter is a separate belt-type limiter, and some limiters are integrated with the door hinge. Usually, it has a limiting function when the vehicle door is fully open and half open;

[0003] For the existing commutation structure of the spherical nut, due to volume limitations, this nut can only be made relatively small and is difficult to withstand high-intensity impacts; for the commutation structure of the rotating bracket, because the rotating bracket is installed outside the electric limiter, it additionally increases the overall volume of the electric limiter. And since the rotation fulcrum is relatively close to the vehicle door installation point, a relatively large space needs to be reserved inside the vehicle door to avoid the swing of the electric limiter during the opening and closing of the vehicle door;

[0004] To solve the above technical problems, an electric limiter for an intelligent vehicle door is proposed. Content of the Utility Model

[0005] In view of this, the utility model provides an electric limiter for an intelligent vehicle door to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0006] The technical solution of the utility model is realized as follows: an electric limiter for an intelligent vehicle door includes a main body mechanism and a connecting mechanism;

[0007] The main body mechanism includes a housing. A motor is installed on one side of the housing. A worm is installed on the output shaft of the motor. A vehicle door connecting sleeve is fixedly connected to one side of the housing. A helical gear worm gear is installed inside the housing, and the helical gear worm gear meshes with the worm;

[0008] The connecting mechanism includes a support rod. The support rod is arranged on one side inside the vehicle door connecting sleeve. One end of the support rod is fixedly connected with a commutation pin shaft. A commutation connecting block is installed on one side of the commutation pin shaft. A lead screw is installed on one side of the commutation connecting block.

[0009] Further preferably, slide rails are symmetrically installed inside the vehicle door connecting sleeve, and the commutation connecting block is slidably connected to the vehicle door connecting sleeve through the slide rails.

[0010] Further preferably, vehicle door connecting bolts are symmetrically threadedly connected to one side of the vehicle door connecting sleeve.

[0011] Further preferably, one side of the housing is fixedly connected with a sleeve.

[0012] Further preferably, a door connection pin shaft is installed at one end of the support rod, and a door connection bracket is fixedly connected to one side of the door connection pin shaft.

[0013] Further preferably, a thread is integrally formed inside the helical worm gear, and the helical worm gear is in threaded connection with the lead screw.

[0014] Further preferably, a first ball bearing and a second ball bearing are respectively installed inside the housing, and one side of each of the first ball bearing and the second ball bearing is fixedly connected to the helical worm gear.

[0015] Due to the adoption of the above technical solutions in the embodiments of the present utility model, it has the following advantages:

[0016] 1. The present utility model uses a worm and a helical worm gear as a speed reduction structure, and adopts the method of fixing the helical worm gear and outputting the pushing and pulling force by the lead screw, which simplifies the structure, reduces the moving parts, and the support rod can freely move along the axial direction of the reversing pin shaft, and can adapt to the door angle difference, so that the present utility model is convenient to install, has a simple structure, low running noise, can withstand high-intensity impacts, and can also reduce the occupied space of the electric limiter;

[0017] 2. The present utility model limits the freedom degree of the lead screw in the circumferential direction, so that the lead screw cannot rotate but can only move axially, thereby driving the support rod to output the pushing and pulling force.

[0018] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the above-described illustrative aspects, embodiments and features, further aspects, embodiments and features of the present utility model will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a structural diagram of the present utility model;

[0021] Figure 2 It is a side view structural diagram of the present utility model;

[0022] Figure 3This is the sectional view structure diagram of the utility model.

[0023] Figure 4 This is the internal side view structure diagram of the utility model.

[0024] Reference numerals: 10, main body mechanism; 11, housing; 12, sleeve; 13, door connection sleeve; 14, motor; 15, slide rail; 16, worm; 17, door connection bolt; 20, connection mechanism; 21, support rod; 22, door connection frame; 23, door connection pin shaft; 24, commutation pin shaft; 25, commutation connection block; 26, lead screw; 27, first ball bearing; 28, second ball bearing; 29, helical gear worm wheel. Detailed implementation manners

[0025] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present utility model. Therefore, the drawings and the description are considered to be exemplary in nature and not restrictive.

[0026] The embodiments of the present utility model will be described in detail below with reference to the drawings.

[0027] As Figures 1-4 shown, the embodiment of the present utility model provides an electric limiter for an intelligent door, which is composed of a main body mechanism 10 and a connection mechanism 20.

[0028] The main body mechanism 10 includes a housing 11. A motor 14 is installed on one side of the housing 11. A worm 16 is installed on the output shaft of the motor 14. A door connection sleeve 13 is fixedly connected to one side of the housing 11. A sleeve 12 is fixedly connected to the other side of the housing 11. A helical gear worm wheel 29 is installed inside the housing 11. The helical gear worm wheel 29 meshes with the worm 16. A thread is integrally formed inside the helical gear worm wheel 29. A first ball bearing 27 and a second ball bearing 28 are respectively installed inside the housing 11. One side of the first ball bearing 27 and the second ball bearing 28 is fixedly connected to the helical gear worm wheel 29.

[0029] In one embodiment, in order to enhance the stability when the commutation connection block 25 moves, slide rails 15 are symmetrically installed inside the door connection sleeve 13. The commutation connection block 25 is slidably connected to the door connection sleeve 13 through the slide rails 15.

[0030] In one embodiment, in order to facilitate the connection and fixation of the door connection sleeve 13, door connection bolts 17 are symmetrically threadedly connected to one side of the door connection sleeve 13.

[0031] In one embodiment, a force sensor is installed on the vehicle door. During the opening and closing of the door, if a large resistance is encountered, the motor 14 immediately applies a reverse voltage to stop the electric limiter at the current position, and then continues the door opening and closing operation after the resistance disappears.

[0032] The connecting mechanism 20 includes a support rod 21. The support rod 21 is arranged on the inner side of the door connecting sleeve 13. One end of the support rod 21 is fixedly connected with a reversing pin shaft 24. A reversing connecting block 25 is installed on one side of the reversing pin shaft 24. A lead screw 26 is installed on one side of the reversing connecting block 25. The helical gear worm 29 is threadedly connected with the lead screw 26.

[0033] In one embodiment, in order to facilitate the connection between the support rod 21 and the vehicle door, a door connecting pin shaft 23 is installed at one end of the support rod 21, and a door connecting frame 22 is fixedly connected to one side of the door connecting pin shaft 23.

[0034] In one embodiment, a stop block is installed on the inner end face of the lead screw 26. When the vehicle door is opened to the maximum angle, the stop block contacts the thread of the helical gear worm 29, and the stroke of the electric limiter also reaches the maximum. At this time, if a pulling force is continuously applied, the over-opening angle of the electric limiter is reached, and the vehicle door will no longer open, which also protects the transmission parts inside the electric limiter.

[0035] When the present utility model works: the support rod 21 is connected to the vehicle door through the door connecting frame 22. When the motor 14 operates, it outputs rotational speed and torque to the worm 16. Through the speed ratio of the meshing of the worm 16 and the helical gear worm 29, the rotational speed decreases and the torque increases; the inside of the helical gear worm 29 is a thread, which meshes with the lead screw 26 to drive the lead screw 26 to output pushing and pulling forces, and then acts on the reversing pin shaft 24 inside the reversing connecting block 25 at the output end of the lead screw 26; the reversing pin shaft 24 itself can rotate in the circumferential direction, forming a degree of freedom that can adapt to the angle difference of the vehicle door opening and closing, and drives the support rod 21 to generate pushing and pulling forces, and then acts on the door connecting pin shaft 23 of the door connecting frame 22, and finally drives the vehicle door to realize the door opening and closing operation.

[0036] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various changes or substitutions, and these should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. An electric limiter for an intelligent vehicle door, characterized in that: It includes a main body mechanism (10) and a connecting mechanism (20); The main body mechanism (10) includes a housing (11). A motor (14) is installed on one side of the housing (11). A worm (16) is installed on the output shaft of the motor (14). A door connecting sleeve (13) is fixedly connected to one side of the housing (11). A helical gear worm wheel (29) is installed inside the housing (11). The helical gear worm wheel (29) meshes with the worm (16); The connecting mechanism (20) includes a support rod (21). The support rod (21) is arranged on one side inside the door connecting sleeve (13). One end of the support rod (21) is fixedly connected to a reversing pin shaft (24). A reversing connecting block (25) is installed on one side of the reversing pin shaft (24). A lead screw (26) is installed on one side of the reversing connecting block (25).

2. The electric limiter for an intelligent vehicle door according to claim 1, wherein: Sliding rails (15) are symmetrically installed inside the door connecting sleeve (13). The reversing connecting block (25) is slidably connected to the door connecting sleeve (13) through the sliding rails (15).

3. The electric limiter for an intelligent vehicle door according to claim 1, wherein: Door connecting bolts (17) are symmetrically threadedly connected to one side of the door connecting sleeve (13).

4. The electric limiter for an intelligent vehicle door according to claim 1, wherein: A sleeve (12) is fixedly connected to one side of the housing (11).

5. The electric limiter for an intelligent vehicle door according to claim 1, characterized in that: A door connecting pin shaft (23) is installed at one end of the support rod (21). A door connecting frame (22) is fixedly connected to one side of the door connecting pin shaft (23).

6. The electric limiter for an intelligent vehicle door according to claim 1, characterized in that: Internal threads are integrally formed inside the helical gear worm wheel (29). The helical gear worm wheel (29) is threadedly connected to the lead screw (26).

7. The electric limiter for an intelligent vehicle door according to claim 1, characterized in that: A first ball bearing (27) and a second ball bearing (28) are respectively installed inside the housing (11). One side of both the first ball bearing (27) and the second ball bearing (28) is fixedly connected to the helical gear worm wheel (29).

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