CN109339617B

CN109339617B - Automobile automatic door and automobile

Info

Publication number: CN109339617B
Application number: CN201811530479.4A
Authority: CN
Inventors: 唐伟航; 饶金贵; 邓飞; 廖勇林
Original assignee: Guangdong Dongjian Automobile Technology Co Ltd
Current assignee: Guangdong Dongjian Automobile Technology Co Ltd
Priority date: 2018-12-14
Filing date: 2018-12-14
Publication date: 2020-09-01
Anticipated expiration: 2038-12-14
Also published as: CN109339617A

Abstract

The invention relates to an automobile automatic door and an automobile. The automatic automobile door comprises an automobile door, a driving device, a gear box, a gear shaft, a rack and a clamping piece, wherein the driving device is fixedly connected with the automobile door, the gear box is hinged to the automobile door, the gear shaft and the clamping piece are arranged in the gear box, one end of the rack is hinged to an automobile body, the other end of the rack penetrates through the gear box, one side of the rack is meshed with the gear shaft, the other side of the rack is in limit fit with the clamping piece, the driving device is connected with the gear shaft and used for driving the gear shaft to rotate so as to drive the rack to perform linear reciprocating motion, and then the automobile door is pushed to be opened or closed relative to the automobile body. The automatic door of the automobile has the advantages of simple overall structure, small occupied space, small change on the original automobile door structure and high universality.

Description

Automobile automatic door and automobile

Technical Field

The invention relates to the technical field of automobiles, in particular to an automatic automobile door and an automobile.

Background

With the continuous development and progress of the automobile industry, the utilization rate and the demand of automobiles are continuously increased, and therefore, the convenience and the safety of automobiles are more and more concerned by all people. Most of traditional automobile doors can only be opened and closed manually, and the use convenience is low. Most of mechanisms capable of realizing automatic opening and closing of the automobile door are complex in structure and large in occupied space, and the original automobile door needs to be greatly changed, so that the universality is low, and the development of the automatic automobile door is limited.

Disclosure of Invention

Therefore, it is necessary to provide an automatic door for an automobile and an automobile, aiming at the problems of complex structure and low universality of the traditional automatic door for the automobile.

The utility model provides an automobile automatic door, includes door, drive arrangement, gear box, gear shaft, rack and holder, drive arrangement with door fixed connection, the gear box with the door is articulated, the gear shaft reaches the holder is all located in the gear box, the one end of rack is articulated with the automobile body, and the other end runs through the gear box, one side of rack with the gear shaft meshing, the opposite side with holder spacing cooperation, drive arrangement with the gear shaft is connected and is used for the drive the gear shaft rotates, in order to drive the rack is sharp reciprocating motion, and then promotes the door is relative the automobile body is opened or is closed.

The automobile automatic door can realize automatic opening and closing of the automobile door through the matching of the driving device, the gear box, the gear shaft, the rack and the clamping piece. Specifically, the vehicle door is connected with the vehicle body through the vehicle door hinge, the rack is connected with the side wall of the vehicle body through the rack hinge, in the process of opening or closing the vehicle door, the gear shaft is driven to operate through the driving device, the rack is further driven to do reciprocating linear motion, axial force is generated, the axial force is applied to the hinged position of the side wall of the vehicle body through the rack, reaction force is generated on the side wall of the vehicle body and acts on the vehicle door along the rack, and because the reaction force does not pass through the rotation center of the vehicle door, a force arm exists between the reaction force and the rotation center of the vehicle door, rotation torque can be generated, and the vehicle door is driven to be automatically opened or closed. Meanwhile, the rack can be limited through the clamping piece, so that the gear shaft and the rack can be kept to be correctly meshed in any state. The automatic door of the automobile has the advantages of simple overall structure, small occupied space, small change on the original automobile door structure and high universality.

In one embodiment, the rack is arranged linearly or in a curve.

In one embodiment, the driving device is a driving motor, and the gear shaft is connected with an output shaft of the driving motor.

In one embodiment, the automatic door of the automobile further comprises a bracket, the bracket is fixed on the automobile door, the driving motor is fixedly connected with the bracket, and the gear box is hinged with the bracket through a gear box hinge extending vertically.

In one embodiment, the driving motor is vertically arranged, the output shaft of the driving motor extends vertically, the tooth surface of the gear shaft is horizontally arranged, and the side surface of the rack is provided with teeth meshed with the gear shaft.

In one embodiment, the output shaft of the drive motor and the gearbox hinge extend along the same axis.

In one embodiment, the clamping piece is a clamping shaft extending vertically, and the outer peripheral surface of the clamping shaft is tangent to the side surface of the rack far away from the gear shaft.

In one embodiment, one end of the rack, which is not hinged to the vehicle body, is provided with a stop block, and the stop block is used for limiting the rotation of the vehicle door.

In one embodiment, the automatic door for a vehicle further includes a brake disposed between the driving device and the gear shaft.

An automobile comprises the automatic automobile door.

Drawings

Fig. 1 is a schematic structural diagram of an automatic door of an automobile according to an embodiment of the invention;

FIG. 2 is a schematic view of the automatic door of FIG. 1 from another perspective;

FIG. 3 is a schematic view of the engagement between the gear shaft and the rack of the automatic door of FIG. 1;

FIG. 4 is a schematic view of an automotive automatic door when open;

fig. 5 is a schematic view of an automatic door closing device for an automobile.

10. The device comprises a driving device, 20, a gear box, 21, a gear box hinge, 30, a gear shaft, 40, a rack, 41, a stop block, 42, a rack hinge, 50, a clamping piece, 60, a support, 100, a vehicle door, 110, a vehicle door hinge, 200 and a vehicle body.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Referring to fig. 1 to 5, an automatic door for an automobile includes a door 100, a driving device 10, a gear box 20, a gear shaft 30, a rack 40 and a clamping member 50, the driving device 10 is fixedly connected to the door 100, the gear box 20 is hinged to the door 100, the gear shaft 30 and the clamping member 50 are both disposed in the gear box 20, one end of the rack 40 is hinged to a body 200, the other end of the rack 40 penetrates through the gear box 20, one side of the rack 40 is engaged with the gear shaft 30, the other side of the rack is in limit fit with the clamping member 50, the driving device 10 is connected to the gear shaft 30 for driving the gear shaft 30 to rotate, so as to drive the rack 40 to perform a linear reciprocating motion, and further to push the.

Specifically, the door 100 and the side wall of the vehicle body 200 are connected by a door hinge 110 and can rotate relative to the vehicle body 200, the driving device 10 can be directly fixed on the door 100 or fixed on the door 100 by a bracket 60 and can rotate around the door hinge 110 together with the door 100, and one end of the rack 40 is hinged with the vehicle body 200 by a rack hinge 42. In addition, since the hinge center of the rack 40 is not identical to the rotation center of the door 100, the opening angle of the door 100 is different from the swing angle of the rack 40, and the gear housing 20 can swing along with the movement of the rack 40 by hinging the gear housing 20 to the door 100, so as to automatically compensate the angle difference, and at the same time, the rack 40 and the gear shaft 30 can be ensured to be correctly engaged in any state by the clamping member 50, so that the whole mechanism can be smoothly operated. The shape of the rack 40 is not limited, and the rack 40 may be arranged in a straight line or a curve, for example, in some cases, the rack 40 may be arranged in a curve in order to further reduce the movement space of the rack 40.

The automatic automobile door can realize the automatic opening and closing of the automobile door 100 through the cooperation of the driving device 10, the gear box 20, the gear shaft 30, the rack 40 and the clamping piece 50. Specifically, the vehicle door 100 is connected with the vehicle body 200 through the vehicle door hinge 110, the rack 40 is connected with the side wall of the vehicle body 200 through the rack hinge 42, in the process of opening or closing the vehicle door 100, the driving device 10 drives the gear shaft 30 to operate, and further drives the rack 40 to do reciprocating linear motion and generate axial force, the axial force acts on the hinged part of the side wall of the vehicle body 200 through the rack 40, the side wall of the vehicle body 200 generates a reaction force and acts on the vehicle door 100 along the rack 40, and because the reaction force does not pass through the rotation center of the vehicle door 100, a force arm exists between the rotation center of the vehicle door 100 and the reaction force, a rotation moment can be generated, so as to drive the vehicle door 100 to automatically open or close. Meanwhile, the rack 40 can be limited by the clamping piece 50, so that the gear shaft 30 and the rack 40 can be kept meshed correctly in any state. The automatic door of the automobile has the advantages of simple overall structure, small occupied space, small structural change to the original automobile door 100 and high universality.

In one embodiment, the driving device 10 is a driving motor, and the gear shaft 30 is connected to an output shaft of the driving motor. The output shaft of the driving motor drives the gear shaft 30 to rotate, and further drives the rack 40 to do linear reciprocating motion. The driving motors can be placed horizontally or vertically, and accordingly, the matching form of the gear shaft 30 and the rack 40 can be adjusted adaptively.

Further, the automatic door of the automobile further comprises a bracket 60, the bracket 60 is fixed on the door 100, the driving motor is fixedly connected with the bracket 60, and the gear box 20 is hinged with the bracket 60 through a gear box hinge 21 extending vertically. Through setting up support 60 so that the installation of driving motor and gear box 20 to can reduce the transformation to door 100 self structure, further promote the commonality. Specifically, the bracket 60 is disposed in a frame shape, one side of the bracket 60 is fixedly connected to the vehicle door 100, the driving motor is indirectly fixed to the vehicle door 100 through the bracket 60, the gear box 20 is disposed inside the bracket 60, and the gear box 20 is hinged to the bracket 60 through the gear box hinge 21 and can rotate along a vertically extending axis, so as to reduce the swing of the rack 40.

Further, referring to fig. 1 and 3, the driving motor is vertically disposed, an output shaft of the driving motor vertically extends, a tooth surface of the gear shaft 30 is horizontally disposed, and a side surface of the rack 40 is provided with teeth engaged with the gear shaft 30. Specifically, on driving motor was fixed in support 60, driving motor's output shaft vertically extended and penetrated in gear box 20, gear shaft 30 and driving motor's output shaft connection, overall structure is simple, has higher cooperation reliability. Meanwhile, the driving motor is vertically arranged, so that the output shaft of the driving motor is parallel to the gear box hinge 21 of the gear box 20, and the swinging movement space of the gear box 20 and the driving motor can be reduced.

Further, the output shaft of the drive motor extends along the same axis as the gear box hinge 21. The output shaft of the driving motor and the hinge 21 of the gear box are coaxially arranged, so that the driving motor can be fixed and only the gear box 20 swings.

Further, the clamping member 50 is a vertically extending clamping shaft, and the outer peripheral surface of the clamping shaft is tangent to the side surface of the rack 40 away from the gear shaft 30. The gear box 20 is designed to be rotatable, and the clamping shaft is tangent to the rack 40 to ensure the proper meshing state of the spur gear and the rack 40, so that the vehicle door 100 can transmit power through the matching of the gear shaft 30 and the rack 40 at any position.

Further, one end of the rack 40, which is not hinged to the vehicle body 200, is provided with a stopper 41, and the stopper 41 is used for limiting the rotation of the vehicle door 100. By providing the stop block 41 at the end of the rack bar 40, when the door 100 has not been opened to the maximum angle, the stop block 41 contacts the bracket 60 (or other parts of the door 100) in advance, and since the bracket 60 is fixedly connected to the door 100, the door 100 can be restricted from being opened further, so that the door hinge 110 can be prevented from colliding, and the door hinge 110 can be protected.

The rack 40 is hinged to the vehicle body 200 by a rack hinge 42, wherein the rack hinge 42 may be disposed at a stopper of the vehicle body 200 or at another position of the vehicle body 200. In practical application, the rotation center of the gear box 20 can be designed correspondingly according to the swing track of the rack 40, so that the rack 40 is always located in the moving space of the original stopper in the opening and closing process of the whole vehicle door 100, i.e. the rack-and-pinion mechanism cannot interfere with the vehicle door 100. The rack hinge 42 is arranged at the stopper of the original vehicle body 200, and the swing amplitude of the rack 40 is limited in the moving space of the original vehicle stopper by the design of the rack-and-pinion mechanism, so as to reduce the structural change of the vehicle door 100. The requirement of driving torque is met, the appearance effect of the whole automobile can be not damaged, the change of the automobile door 100 is small, and the reliability of the structure of the automobile door 100 is ensured.

In one embodiment, the automatic door for a vehicle further includes a brake disposed between the driving device 10 and the gear shaft 30. Through setting up the stopper, when drive arrangement stopped the drive, the stopper lock, relies on the friction torque of stopper, can guarantee that door 100 hovers at the present position to effectively avoid door 100 opening the back, because of self weight and unable keeping at the present position, the influence is used, and when drive arrangement drove gear shaft 30 and revolved, the stopper loosens, so that door 100 can normally rotate.

The following describes in detail the opening and closing operation of the automatic door of the vehicle according to an embodiment of the present invention, taking the main driving door as an example, with reference to fig. 4 and 5.

Referring to fig. 4, when the driving device 10 receives an ECU "door opening command" in a fully closed state of the vehicle door 100, the driving device 10 is energized to rotate the output shaft counterclockwise, so as to drive the gear shaft 30 and the rack 40 to engage for transmission. The rack 40 generates a pressure along the axis direction thereof and in the direction tangential to the gear, and the pressure is transmitted to the hinged part of the rack 40 and the side wall of the vehicle body and acts on the side wall of the vehicle body. Due to the relationship between the force and the reaction force, the body side also has a reaction force against the rack 40, which ultimately acts on the door 100. Meanwhile, the action point of the counter-thrust has a moment arm with the rotation center of the vehicle door 100, so that a clockwise moment is formed to drive the vehicle door 100 to rotate clockwise for opening.

Referring to fig. 5, when the vehicle door 100 is in the opened state, and the driving device 10 receives the ECU "door closing command", the driving device 10 is powered on to rotate the output shaft clockwise, so as to drive the gear shaft 30 and the rack 40 to mesh and transmit. The toothed rack 40 produces a pulling force directed away from the body side, which acts on the body side. Due to the relationship between the acting force and the reacting force, the body side wall also has a counter-pulling force on the rack 40, and the force is finally applied to the vehicle door 100 to form a counterclockwise moment, so that the vehicle door 100 is driven to rotate counterclockwise to close.

The invention further provides an automobile which comprises the automatic automobile door, the specific structure of the automatic automobile door can refer to the embodiment, and the automobile adopts all the technical schemes of the embodiment, so that all the beneficial effects brought by the embodiment are at least included, and the detailed description is omitted.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An automatic automobile door is characterized by comprising an automobile door, a driving device, a gear box, a gear shaft, a rack and a clamping piece, wherein the driving device is fixedly connected with the automobile door, the gear box is hinged with the automobile door, the gear shaft and the clamping piece are arranged in the gear box, one end of the rack is hinged with an automobile body, the other end of the rack penetrates through the gear box, one side of the rack is meshed with the gear shaft, the other side of the rack is in limit fit with the clamping piece, the driving device is connected with the gear shaft and is used for driving the gear shaft to rotate so as to drive the rack to do linear reciprocating motion, and the automobile door is further pushed to be opened or closed relative to the automobile body; the automatic automobile door further comprises a support, the support is fixed on the automobile door, and the gear box is hinged to the support through a vertically extending gear box hinge.

2. The automatic door for a vehicle according to claim 1, wherein the rack gear is disposed linearly or curvilinearly.

3. The automatic door for vehicle according to claim 1, wherein the driving device is a driving motor, and the gear shaft is connected to an output shaft of the driving motor.

4. The automatic door for a vehicle according to claim 3, further comprising a bracket, wherein the driving motor is fixedly connected to the bracket.

5. The automatic door for an automobile as claimed in claim 4, wherein the driving motor is disposed vertically, the output shaft of the driving motor extends vertically, the tooth surface of the gear shaft is disposed horizontally, and the side surface of the rack is provided with teeth engaged with the gear shaft.

6. The automatic door for vehicle according to claim 5, wherein the output shaft of the driving motor and the gear box hinge extend along the same axis.

7. The automatic door for vehicle according to claim 5, wherein the holding member is a vertically extending holding shaft, and an outer peripheral surface of the holding shaft is tangent to a side surface of the rack away from the gear shaft.

8. The automatic door for vehicle according to any one of claims 1 to 7, wherein an end of the rack bar that is not hinged to the vehicle body is provided with a stopper for limiting rotation of the vehicle door.

9. The automatic door for vehicle according to any one of claims 1 to 7, further comprising a brake disposed between the driving means and the gear shaft.

10. An automobile, characterized by comprising the automatic door for an automobile according to any one of claims 1 to 9.