Gear swing type electric door limiter

Abstract

The present application relates to gear swing type electric door stopper, through driving motor through worm drive turbine rotation, turbine through the joint in the movable clamping groove ball head linkage shaft with ball head rotation, make ball head can drive screw axial movement, screw in the telescopic process between fixed support and mounting frame spacing, realize electric opening and closing car door, and more drive motor output can stable control the opening angle of the door, make the door can hover at any angle, and in the car door plus anti-pinch device and obstacle detection device can guarantee intelligent open and close car door, simultaneously through setting several swing grooves parallel with screw on ball head, make screw swing in ball socket seat when door rotates, make ball head along swing groove swing inserted in ball head linkage shaft, and the spacing between swing shaft up and down is the maximum opening angle of the car door.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile accessories, in particular to a gear swing type electric door limiter. BACKGROUND

[0002] In view of the increasing demand of consumers for motor vehicles equipped with advanced comfort and convenience features, many modern motor vehicles are now equipped with passive entry systems to allow locking and releasing of the vehicle doors without using a traditional key-type manual entry system. But such control systems have not corresponded to the appropriate electric door system, which is usually provided by a separate power-operated door opener assembly that can be operated in coordination with a latching assembly to move the door from a closed position to a partially open position, thereby subsequently allowing a user to manually move the door to a fully open position. But it fails to fully achieve automatic full opening and automatic closing, and also fails to solve the problem of opening the door too large or swinging the door closed when the vehicle is on an inclined surface and the door is unbalanced in weight. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a gear swing type electric door limiter to solve the above problems of the prior art.

[0004] To achieve the above object, the present application provides the following technical scheme: a gear swing type electric door limiter, comprising a housing, a drive motor arranged on one side of the housing, and a screw rod penetrating through the housing, wherein one end of the housing is fixedly provided with a fixed bracket for mounting on a vehicle door, the screw rod penetrates through the fixed bracket, and the end of the screw rod is provided with a mounting bracket, one end of the mounting bracket is fixedly connected with the vehicle body, and the other end is provided with a mounting seat connected with the screw rod, and the mounting seat is hinged with the mounting bracket, characterized in that: one end of the drive motor towards the housing is provided with a worm, the outer periphery of the screw rod is sleeved with a ball head in threaded connection with the screw rod, the outer periphery of the ball head is provided with a ball socket, the outer periphery of the ball socket is provided with a turbine meshing with the worm, the outer periphery of the ball head is provided with a plurality of swing grooves arranged in parallel with the screw rod, the swing grooves are each inserted with a ball head linkage shaft, the inner wall of the turbine is provided with a movable clamping groove corresponding to the swing groove, the ball head linkage shaft extends out of the ball socket and is inserted into the movable clamping groove, so that the screw rod drives the ball head to swing in the ball socket along the swing groove, the drive motor drives the ball head to rotate through the worm, and in turn drives the screw rod to move axially in the housing, thereby adjusting the distance between the mounting bracket and the fixed bracket to open and close the vehicle door.

[0005] The technical scheme is adopted, the fixed support is arranged on the shell and mounted on the door, the mounting bracket is arranged on the screw and mounted on the vehicle body, the mounting seat is hinged with the mounting bracket, one end of the screw is inserted into the mounting seat and can be movably connected, the screw abuts against the mounting seat in the extension and retraction process, the mounting seat can rotate circumferentially with the mounting bracket as the fulcrum, the driving motor drives the screw to rotate through the worm gear transmission structure, the worm gear transmission structure drives the worm to rotate through the driving motor and the worm, the worm drives the ball head to rotate through the linkage shaft with the ball head being clamped in the movable clamping groove, the ball head can drive the screw to move axially, the screw pushes the distance between the fixed support and the mounting bracket in the extension and retraction process, the fixed support and the mounting bracket are arranged to cause the angle between the door and the vehicle body to deviate, the screw can push the door to open and close with the mounting bracket as the origin in the extension and retraction process, the electrically-driven opening and closing of the door are realized, the output of the driving motor can be used to stably control the opening angle of the door, the door can hover at any angle, the anti-pinch device and the obstacle detection device arranged on the door can ensure the intelligent opening and closing of the door, the worm can be integrally arranged with the ball socket or be mounted through the limiting structure, a plurality of swing grooves parallel to the screw are arranged on the ball head, the screw swings in the ball socket when the door rotates, the ball head swings along the swing groove in which the linkage shaft is inserted, and the distance between the swing shafts determines the maximum opening angle of the automobile door.

[0006] The gear swing type electric door limiter can be further provided with the ball socket including an upper ball socket and a lower ball socket, the upper ball socket and the lower ball socket are connected through bolts, the upper ball socket and the lower ball socket are matched to form a ball socket for accommodating the ball head, and the upper ball socket and the lower ball socket are matched to form a linkage hole for the linkage shaft to pass through.

[0007] The upper ball socket and the lower ball socket are connected through bolts, the ball head is more convenient to install in the ball socket, the worker is more convenient to assemble, the processing efficiency is improved, and the ball head is convenient to replace after wearing.

[0008] The gear swing type electric door limiter can be further provided with the worm inner wall being provided with a plurality of limiting clamping grooves, and the ball socket being provided with a plurality of limiting protrusions clamped in the limiting clamping grooves.

[0009] The worm is linked with the limiting protrusions of the ball socket through the limiting clamping grooves, the worm can stably drive the ball socket to rotate when the worm rotates, the ball socket drives the ball head to rotate through the linkage hole, and the axial movement of the screw is stably controlled.

[0010] The gear swing type electric door limiter can be further provided with the screw being provided with a bellows at one end facing the mounting bracket, one end of the bellows being connected with the mounting seat, and the other end of the bellows being connected with the fixed support.

[0011] By setting the bellows, the influence of the vehicle on the screw during driving is absorbed, and when the distance between the mounting seat and the fixed support changes, the bellows will not be damaged due to stretching or compression, and the screw is protected from the influence of the external environment (dust, water vapor).

[0012] The gear swing type electric door limiter can be further provided with a Hall sensor electrically connected to the driving motor, and the driving motor rotation period is controlled through the Hall sensor.

[0013] The above-mentioned gear swing type electric door limiter can be further provided with a Hall sensor electrically connected to the driving motor, and the driving motor rotation period is controlled through the Hall sensor.

[0014] The gear swing type electric door limiter can be further provided with a Hall sensor electrically connected to the driving motor, and the driving motor rotation period is controlled through the Hall sensor.

[0015] The above-mentioned gear swing type electric door limiter can be further provided with a Hall sensor electrically connected to the driving motor, and the driving motor rotation period is controlled through the Hall sensor.

[0016] The gear swing type electric door limiter can be further provided with a Hall sensor electrically connected to the driving motor, and the driving motor rotation period is controlled through the Hall sensor.

[0017] The above-mentioned gear swing type electric door limiter can be further provided with a Hall sensor electrically connected to the driving motor, and the driving motor rotation period is controlled through the Hall sensor.

[0018] The above-mentioned gear swing type electric door limiter can be further provided with a Hall sensor electrically connected to the driving motor, and the driving motor rotation period is controlled through the Hall sensor. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The above-mentioned gear swing type electric door limiter can be further provided with a Hall sensor electrically connected to the driving motor, and the driving motor rotation period is controlled through the Hall sensor.

[0020] Figure 2 The above-mentioned gear swing type electric door limiter can be further provided with a Hall sensor electrically connected to the driving motor, and the driving motor rotation period is controlled through the Hall sensor.Figure 1 Exploded diagram.

[0021] Figure 3 This is a cross-sectional view of Example 1 of the present invention.

[0022] Figure 4 This is a schematic diagram of the connection between the screw, ball socket, turbine and ball head in Example 1 of the present invention.

[0023] Figure 5 Schematic diagram of a three-dimensional ball socket and a ball head according to embodiment 1 of the present invention.

[0024] Figure 6 This is a half-section view of the screw, ball socket, turbine and ball head in the swinging state according to Example 1 of the present invention.

[0025] Figure 7 This is a schematic diagram of the internal structure of Example 2 of the present invention. DETAILED DESCRIPTION

[0026] Example 1:

[0027] like Figures 1-6As shown, the gear swing type electric door stopper comprises a shell 1, a driving motor 2 arranged on one side of the shell 1 and a screw rod 3 penetrating through the shell 1, one end of the shell 1 is fixedly provided with a fixed support 4 for being mounted on a vehicle door, the screw rod 3 penetrates through the fixed support 4, and the screw rod 3 is provided with a mounting bracket 5 at the end thereof, one end of the mounting bracket 5 is fixedly connected with a vehicle body, and the other end of the mounting bracket 5 is provided with a mounting seat 51 connected with the screw rod 3, the mounting seat 5 is hingedly connected with the mounting bracket 51, the driving motor 2 is provided with a worm 21 at the end thereof towards the shell 1, a ball head 6 is sleeved on the outer periphery of the screw rod 3 and is threadedly connected with the screw rod 3, the ball head 6 is externally provided with a ball socket seat 7, the outer periphery of the ball socket seat 7 is provided with a turbine 71 engaged with the worm 21, the outer periphery of the ball head 6 is provided with a plurality of swing grooves 61 arranged in parallel with the screw rod 3, a ball head linkage shaft 62 is inserted into each of the swing grooves 61, the inner wall of the turbine 71 is provided with a movable clamping groove 711 corresponding to the swing grooves 61, the ball head linkage shaft 62 extends out of the ball socket seat 7 and is inserted into the movable clamping groove 711, so that the screw rod 3 drives the ball head 6 to swing in the ball socket seat 7 along the swing grooves 61, the driving motor 2 drives the ball head 6 to rotate through the worm 21, and then drives the screw rod 3 to axially move in the shell 1, and then adjusts the distance between the mounting bracket 5 and the fixed support 4 to realize the opening and closing of the vehicle door, the ball socket seat 7 comprises an upper ball socket seat 72 and a lower ball socket seat 73, the upper ball socket seat 72 and the lower ball socket seat 73 are connected through a bolt 74, the upper ball socket seat 72 and the lower ball socket seat 73 are cooperatively formed with a ball socket 75 for accommodating the ball head 6 and a linkage hole 76 for the ball head linkage shaft 62 to penetrate through, the inner wall of the turbine 71 is provided with a plurality of limiting clamping grooves 712, the ball socket seat 7 is provided with a plurality of limiting protrusions 77 clamped in the limiting clamping grooves 712, a bellows 31 is sleeved on the end of the screw rod 3 towards the mounting bracket 5, one end of the bellows 31 is connected with the mounting seat 51, and the other end of the bellows 31 is connected with the fixed support 4, the driving motor 2 is further provided with a Hall sensor 21 electrically connected with the driving motor 2, and the driving motor 2 is controlled to rotate through the Hall sensor 21, the end of the screw rod 3 away from the mounting bracket 5 is provided with a limiting gasket 32, the end of the shell 1 towards the limiting gasket 32 is provided with a bearing seat 8, the bearing seat 8 is provided with a through hole 81 for the screw rod 3 to penetrate through, the bearing seat 8 is provided with a dust cover 82, the dust cover 82 is provided with an accommodating cavity 83 for accommodating the screw rod 3, the outer diameter of the limiting gasket 32 is greater than the inner diameter of the through hole 81, the ball socket seat 7 is provided with a bearing 9 at each end thereof, and the bearings 9 are arranged on the bearing seat 8 and the fixed support 4 respectively.

[0028] Example 2:

[0029] As Figure 7 shown, when the electric door stopper is used in an electric door control system, the electric door stopper is installed in a vehicle door as a driving device through the fixed support 4, the mounting bracket 5 on the screw rod 3 penetrates out of the vehicle door and is mounted on the vehicle body, and an anti-pinch device, an obstacle detection device, a main control unit and a door lock device are provided in the control system, so that the following functions can be realized:

[0030] 1、In this system, the car can automatically open the door by identifying the driver in a specific way (such as scanning the code, gestures, fingerprints, keyless control, mobile phone, etc.). If the vehicle user fails to properly close the door after getting off, the vehicle will automatically close the door through the electric door limiter after parking or before the next trip.

[0031] 2、According to different vehicle models, brake 22 (damper) is selected and equipped, that is, when the vehicle with lighter doors is used, the doors can be suspended by short-circuiting the drive motor 2 through its internal resistance under the control of the ECU, and when the doors are heavier, brake 22 can be equipped. For example, on a slope, when the door is stationary, the brake 22 is in a locked state, generating friction to prevent the drive motor from rotating; when the door needs to be opened (manual door opening, electric door opening), the brake 22 is powered on to cancel the friction, and the drive motor 2 drives the control screw 3 to rotate and open the door. When the door is in an open state, the brake does not work, generating friction, that is, the weight of the door is less than the main force distance (tilt and wind force), meeting the suspension requirements of the door. When the door needs to be closed, only the vehicle power supply needs to be controlled through the electric key, and the brake cannot work to control the screw 3 to close the door. At the same time, it can also be closed manually, that is, the manual door opening force is greater than the resistance distance, which can activate the brake 22 to power on, cancel the friction, and automatically start the drive motor 2 to close the door, realizing the door limit suspension.

[0032] 3、By setting the anti-pinch device and obstacle detection device, the door can detect the environment around the door in real time during closing or opening to avoid collision when the door is opened or hand pinch when the door is closed.

Claims

1. A gear swing type electric door stopper, comprising a housing, a driving motor arranged on one side of the housing, and a screw rod penetrating through the housing, one end of the housing is fixedly provided with a fixed support for being mounted on a vehicle door, the screw rod penetrates through the fixed support, and a mounting bracket is arranged at the end of the screw rod, one end of the mounting bracket is fixedly connected with a vehicle body, and the other end is provided with a mounting seat connected with the screw rod, and the mounting seat is hingedly connected with the mounting bracket, characterized in that: The driving motor is provided with a worm at one end of the shell, the worm outer periphery is sleeved with a ball head which is threadedly connected with the worm, the ball head is externally provided with a ball socket, the ball socket outer periphery is provided with a worm wheel which is engaged with the worm, the ball head outer periphery is provided with a plurality of swing grooves which are arranged in parallel with the worm, the swing grooves are all inserted with ball head linkage shafts, the worm wheel inner wall is provided with movable clamping grooves which correspond to the swing grooves, the ball head linkage shafts extend out of the ball socket and are inserted into the movable clamping grooves, so that the screw drives the ball head to swing in the ball socket along the swing grooves, the driving motor drives the ball head to rotate through the worm, and then drives the screw to move axially in the shell, so as to adjust the distance between the mounting frame and the fixed support to open and close the door, the ball socket comprises an upper ball socket and a lower ball socket, the upper ball socket and the lower ball socket are connected through bolts, the upper ball socket and the lower ball socket are matched to form a ball socket for accommodating the ball head, the upper ball socket and the lower ball socket are matched to form a linkage hole through which the ball head linkage shaft passes, the worm wheel inner wall is provided with a plurality of limiting clamping grooves, the ball socket is provided with a plurality of limiting protrusions which are clamped in the limiting clamping grooves, the driving motor is further provided with a Hall sensor which is electrically connected with the driving motor, and the driving motor rotation period is controlled through the Hall sensor, the screw is sleeved with a bellows at one end towards the mounting frame, one end of the bellows is connected with the mounting seat, and the other end is connected with the fixed support.

2. The swing-to-open electric door check according to claim 1, characterized in that: The screw is provided with a limiting gasket at the end away from the mounting frame, the shell is provided with a bearing seat at one end towards the limiting gasket, the bearing seat is provided with a through hole through which the screw passes, the bearing seat is provided with a dust cover, the dust cover is provided with an accommodating cavity for accommodating the screw, and the limiting gasket outer diameter is greater than the through hole inner diameter.

3. The swing-to-open electric gate limiter according to claim 2, characterized in that: The ball socket two ends are both provided with bearings, and the bearings are respectively arranged on the bearing seat and the fixed support.

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