CN114458110A - Arm lever type electric door limiter - Google Patents

Abstract

The invention relates to an arm rod type electric door limiter, wherein a driving motor drives a screw rod to rotate through a gear transmission structure, the screw rod is arranged in a shell, a sliding screw sleeve sleeved on the outer peripheral surface is driven to slide up and down during rotation, the arm rod is driven to stretch in the shell, the arm rod pushes the space between a fixed support and an installation frame in the stretching process, the angle between a vehicle door and a vehicle body is deviated due to the arrangement of the fixed support and the installation frame, the vehicle door can be pushed to open and close by taking the installation frame as an original point in the stretching process, the vehicle door can be opened and closed electrically, the opening angle of the vehicle door can be controlled stably by the output quantity of the driving motor, the vehicle door can hover at any angle, an anti-clamping device and an obstacle detection device are additionally arranged on the vehicle door, intelligent opening and closing of the vehicle door can be ensured, meanwhile, the arm rod swings in a swinging groove when the vehicle door rotates due to the hinged arrangement of the two ends of the arm rod, the dryness cannot occur, and the distance between the swing grooves is in place at the maximum opening angle of the automobile door.

Description

Boom type electric door limiter

technical field

The invention relates to the field of auto parts, in particular to an arm-type electric door limiter.

Background technique

Given the increased consumer demand for motor vehicles equipped with advanced comfort and convenience features, many modern motor vehicles are now equipped with passive access control systems to allow locking and release without the use of traditional key-based manual access control systems car door. However, such control systems have not been matched to a suitable power door system, which is typically provided by a separate power-operated door opener assembly that operates in coordination with a latch assembly to keep the door from closing The position is moved to the partially open position, thereby allowing the user to manually move the door fully to the fully open position. However, automatic full opening and automatic closing are not fully realized, and also do not solve the problem of when the vehicle is on an inclined surface and the swing door opens too much or swings closed due to the weight imbalance of the door.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide an arm-type electric door limiter in view of the above-mentioned deficiencies of the prior art.

In order to achieve the above purpose, the present invention provides the following technical solution: an arm-type electric door limiter, comprising a casing, a screw rod and a drive motor arranged in the casing, and one end of the casing is provided with a fixed device for being installed on the door. The bracket is characterized in that: one end of the housing corresponding to the screw rod is provided with an arm rod, the screw rod is movably connected in the housing, the outer peripheral surface of the screw rod is sleeved with a sliding screw sleeve that is threadedly connected with the screw rod, and one end of the arm rod is connected to the screw rod. The sliding screw sleeve is hinged, the other end extends out of the housing and the fixing bracket, and its end is provided with a mounting bracket, one end of the mounting bracket is fixedly connected with the vehicle body, and the other end is hinged with the arm rod through the first pin, the fixing bracket There is a swing slot on the upper part to make the arm rod move at the fixed bracket. The drive motor drives the screw to rotate in the casing through the gear transmission structure, so that the sliding screw sleeve drives the arm rod to move axially in the casing, and then adjusts the fixed bracket and installation. The space between the racks enables the doors to be opened and closed.

By adopting the above technical solution, the housing is provided with a fixing bracket installed on the door, and the arm rod is provided with a mounting bracket installed on the vehicle body. On the screw, that is, the driving motor drives the screw to rotate through the gear transmission structure, and the screw is erected in the casing. When rotating, it drives the sliding screw sleeve sleeved on the outer peripheral surface to slide up and down, and then drives the boom to expand and contract in the casing. The boom is in the process of expansion and contraction. The distance between the fixed bracket and the mounting bracket is pushed in the middle, and the setting of the fixed bracket and the mounting bracket causes the angle of the door and the body to be offset, so that the arm can push the door to switch with the mounting bracket as the origin during the expansion and contraction process. The door can be opened and closed electrically, and the output of the driving motor can stably control the opening angle of the door, so that the door can hover at any angle, and the installation of an anti-pinch device and an obstacle detection device on the door can ensure intelligent opening and closing of the door At the same time, because the two ends of the arm rod are hinged, when the door is rotated, the arm rod swings in the swing groove without dryness, and the distance between the swing grooves is the maximum opening angle of the car door.

The above-mentioned arm-type electric door stopper can be further configured as follows: the drive motor and the screw rod are arranged in parallel in the casing, and the gear transmission structure includes a drive gear arranged at the output end of the drive motor and a drive gear arranged on the screw rod and the drive shaft. A driven gear that meshes with the gears.

By adopting the above technical solution, the driving motor drives the driven gear to rotate through the driving gear, so that the driven gear drives the screw to rotate, and the gear transmission has the advantages of stable transmission, shock absorption, simple structure, low cost, and convenient use and maintenance. The drive motor and screw can make the stopper more compact and suitable for more models.

The above-mentioned arm lever type electric door stopper can be further set as follows: the arm lever and the screw rod are arranged in parallel in the housing, the sliding screw sleeve is provided with a right-angle connector, and the arm lever is connected to the arm lever through the second pin shaft. Right-angle connectors are hinged.

Using the above technical solution, the right-angle connector is a 90-degree adapter connector, one end is connected with the sliding screw sleeve, and the other end is hinged with the arm rod, so that the screw drive enables the stable linkage arm rod to move axially.

The above-mentioned arm-type electric door stopper can be further configured as follows: one end of the arm rod close to the mounting frame is sleeved with a buffer sleeve, the buffer sleeve is arranged outside the casing, and the outer diameter of the buffer sleeve is larger than the swing groove. the inner diameter.

By adopting the above technical solution, a buffer sleeve is arranged on the outer casing of the arm rod, so that during the retraction process of the arm rod (the door is closed), the mounting frame is buffered by the buffer sleeve, so as to avoid hard contact and improve the service life of the product.

The arm-type electric door limiter can be further configured as follows: a shock-absorbing sleeve is provided on the outer peripheral surface of the driving motor, and a motor housing for accommodating the driving motor is provided at one end of the housing corresponding to the driving motor.

By adopting the above technical solution, a shock-absorbing sleeve is arranged outside the driving motor to prevent the vibration during vehicle running from affecting the driving motor, and the motor casing is arranged to prevent external dust and rainwater from contaminating the driving motor, thereby improving the service life of the product.

The arm-type electric door limiter can be further configured as follows: the driving motor is further provided with a Hall sensor electrically connected with the driving motor, and the rotation period of the driving motor is controlled by the Hall sensor.

Using the above technical solution, the door is opened and closed by driving the screw to move by the driving motor, and the displacement distance of the arm rod is sensed by the Hall sensor, so that the driving motor automatically stops working when the door is closed or at the maximum open state.

The arm-type electric door limiter can be further configured as follows: gear bearings are provided at both ends of the driving gear and the driven gear, and screw bearings are provided at the end of the screw rod away from the driven gear.

By adopting the above technical scheme, by arranging the gear bearing and the screw bearing, the friction coefficient between the driving gear, the driven gear and the screw is reduced, and the transmission efficiency is improved.

The above-mentioned arm-type electric door stopper may be further configured as follows: a swing bearing is provided between the first pin shaft, the second pin shaft and the arm rod.

By adopting the above technical scheme, the swing bearing improves the rotation efficiency of the mounting frame and the right-angle connecting piece, reduces the friction coefficient, and makes the arm swing smoother and noiseless during the door opening and closing process.

The present invention will be further described below in conjunction with the accompanying drawings.

Description of drawings

FIG. 1 is a schematic perspective view of Embodiment 1 of the present invention.

FIG. 2 is an exploded view of FIG. 1 .

FIG. 3 is a cross-sectional view of Embodiment 1 of the present invention.

FIG. 4 is a schematic diagram of the internal structure of Embodiment 2 of the present invention.

Detailed ways

Example 1:

As shown in Figures 1 to 3, the arm-type electric door limiter includes a housing 1, a screw 2 and a drive motor 3 arranged in the housing 1. One end of the housing 1 is provided with a fixing device for mounting on the door. Bracket 4, one end of housing 1 corresponding to screw 2 is provided with arm rod 5, screw 2 is movably connected in housing 1, the outer peripheral surface of screw 2 is sleeved with a sliding screw sleeve 6 threadedly connected with screw 2, and one end of arm rod 5 is connected to the sliding screw The screw sleeve 6 is hinged, and the other end extends out of the housing 1 and the fixing bracket 4, and its end is provided with a mounting frame 51. One end of the mounting frame 51 is fixedly connected to the vehicle body, and the other end is hinged to the arm rod 5 through the first pin 511. The fixed bracket 4 is provided with a swing groove 41 that enables the arm rod 5 to move at the fixed bracket 4. The drive motor 3 drives the screw rod 2 to rotate in the housing 1 through the gear transmission structure, so that the sliding screw sleeve 6 drives the arm rod 5 in the housing. 1 moves axially, and then adjusts the distance between the fixed bracket 4 and the mounting frame 51 to open and close the door, the drive motor 3 and the screw 2 are arranged in parallel in the housing 1, and the gear transmission structure includes a gear set at the output end of the drive motor 3. The driving gear 31 and the driven gear 21 arranged on the screw 2 and meshing with the driving gear 31, the arm rod 5 and the screw rod 2 are arranged in parallel in the housing 1, the sliding screw sleeve 6 is provided with a right-angle connector 61, and the arm rod 5 The second pin 62 is hinged with the right-angle connector 61 , the end of the arm rod 5 close to the mounting frame 51 is sleeved with a buffer sleeve 52 , the buffer sleeve 52 is arranged outside the housing 1 , and the outer diameter of the buffer sleeve 52 is larger than that of the swing groove 41 . The inner diameter, the outer peripheral surface of the drive motor 3 is provided with a shock-absorbing sleeve 32, the end of the housing 1 corresponding to the drive motor 3 is provided with a motor housing 11 for accommodating the drive motor 3, and the drive motor 3 is also provided with an electrical connection with the drive motor 3. The Hall sensor 33 is used to control the rotation period of the drive motor 3 through the Hall sensor 33. Gear bearings 7 are provided at both ends of the driving gear 31 and the driven gear 21. The bearing 8 is provided with a swing bearing 9 between the first pin shaft 511 , the second pin shaft 62 and the arm rod 5 .

Example 2:

As shown in FIG. 4 , when the electric door limiter of the present invention is used in the electric door control system, the electric door limiter only needs to be installed in the door through the fixed bracket 4 as a driving device, and the installation on the arm rod 5 The frame 51 is installed on the vehicle body through the fixing bracket 4, and is equipped with an anti-pinch device, an obstacle detection device, a main control unit and a door lock device in the control system, which can realize the following functions:

1. In this system, the car can automatically open the door by identifying the driver through a specific method (such as scanning code, gesture, fingerprint, keyless control, mobile phone, etc.). If the vehicle user fails to close the door properly after getting out of the vehicle, the vehicle will automatically close the door through the power door limiter after parking or before the next drive.

2. According to different models, choose the brake 34 (damper), that is, when the vehicle with the light door is in use, the door can be controlled by the ECU to short-circuit the drive motor 3 so that it can hover through its own internal resistance. When it is heavier, the brake 34 can be equipped. The brake 34 is arranged between the drive motor 3 and the driving gear 31. For example, on a slope, when the door is stationary, the brake 34 is in a locked state, which generates friction and prohibits the drive motor 3 from rotating. ; When the door needs to be opened (manual door opening, electric door opening), the brake 34 is energized to work, the friction force is cancelled, the driving motor 3 is driven, the control screw 2 is rotated, and the sliding screw sleeve 6 is linked, so that the sliding screw sleeve 6 drives the arm rod 5 to extend. When the car door is opened, the brake 34 does not work, and friction force is generated, that is, the gravitational distance of the car door is smaller than the main force distance (tilt and wind force), which meets the needs of the car door hovering. When the car door needs to be closed, it is only necessary to pass The electric key controls the power supply of the vehicle. If the brake 34 cannot work, it can control the arm lever 5 to close the door. At the same time, the door can also be closed manually, that is, the power of manually pushing the door is greater than the resistance distance, and the brake 34 can be activated to energize and cancel the friction force. The drive motor 3 automatically starts and closes the door to realize the limit hovering of the door.

3. By setting the anti-pinch device and obstacle detection device, the door can detect the surrounding environment of the door in real time during the closing or opening process, so as to avoid collision when the door is opened or hand-pinch when the door is closed.

Claims (8)

1. Arm lever-type electrically operated gate stopper, including casing, screw rod and the driving motor of setting in the casing, casing one end is equipped with and is used for installing the fixed bolster on the door, its characterized in that: the one end that the casing corresponds the screw rod is equipped with the armed lever, screw rod swing joint is in the casing, screw rod outer peripheral face cover be equipped with screw rod threaded connection slip swivel nut, armed lever one end is articulated with slip swivel nut, and the other end extends outside casing and the fixed bolster, and its end is equipped with the mounting bracket, mounting bracket one end and automobile body fixed connection, the other end is articulated with the armed lever through first round pin axle, set up the swing groove that makes the armed lever locate the activity at the fixed bolster on the fixed bolster, driving motor passes through gear drive structure and drives the screw rod and rotate in the casing, makes the slip swivel nut drive armed lever axial displacement in the casing, and then adjusts the interval between fixed bolster and the mounting bracket and realizes opening and shutting the door.

2. The arm-lever type electric door checker according to claim 1, wherein: the driving motor and the screw rod are arranged in the shell in parallel, and the gear transmission structure comprises a driving gear arranged at the output end of the driving motor and a driven gear arranged on the screw rod and meshed with the driving gear.

3. The arm-lever type electric door checker according to claim 1, wherein: the arm rod and the screw rod are arranged in the shell in parallel, the sliding threaded sleeve is provided with a right-angle connecting piece, and the arm rod is hinged to the right-angle connecting piece through a second pin shaft.

4. The arm-lever type electric door checker according to any one of claims 1 to 3, wherein: one pot head that the armed lever is close to the mounting bracket is equipped with the cushion collar, the cushion collar is established outside the casing, the external diameter of cushion collar is greater than the internal diameter of swing groove.

5. The arm-lever type electric door checker according to any one of claims 1 to 3, wherein: the periphery of the driving motor is provided with a shock absorption sleeve, and one end of the shell, corresponding to the driving motor, is provided with a motor shell for accommodating the driving motor.

6. The arm-lever type electric door checker according to any one of claims 1 to 3, wherein: and the driving motor is also provided with a Hall sensor electrically connected with the driving motor, and the rotation period of the driving motor is controlled by the Hall sensor.

7. The arm-lever type electric door checker according to any one of claims 1 to 3, wherein: the driving gear all is equipped with gear bearing with driven gear's both ends, the one end that driven gear was kept away from to the screw rod is equipped with the screw rod bearing.

8. The arm-lever type electric door checker according to claim 3, wherein: swing bearings are arranged among the first pin shaft, the second pin shaft and the arm rod.

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