CN116163607A

CN116163607A - Electric vehicle door limiter and vehicle

Info

Publication number: CN116163607A
Application number: CN202310291149.9A
Authority: CN
Inventors: 周雄山; 杨飘; 田华; 王永恒; 戴乐宏
Original assignee: Lantu Automobile Technology Co Ltd
Current assignee: Lantu Automobile Technology Co Ltd
Priority date: 2023-03-23
Filing date: 2023-03-23
Publication date: 2023-05-26
Anticipated expiration: 2043-03-23
Also published as: CN116163607B

Abstract

The invention discloses an electric vehicle door limiter and a vehicle, and relates to the technical field of automobile accessories. On the other hand, a vehicle is also provided, which comprises the electric vehicle door limiter. The middle part of the limiting arm is arranged to arch towards one side, and when the vehicle door is opened and closed relative to the vehicle body, the arch line type of the limiting arm is matched with the movement track of the set point in the shell, so that the problems that the running speed is uneven, the opening and closing gear is abnormal in noise and jamming are easy to generate due to the fact that the main arm of the existing electric vehicle door limiter is linear are solved.

Description

Electric vehicle door limiter and vehicle

Technical Field

The invention relates to the technical field of automobile accessories, in particular to an electric vehicle door limiter and a vehicle.

Background

The door limiter is used as an auxiliary component for connecting the automobile door and the automobile interior and is used for controlling the opening and closing of the automobile door, and the use frequency is high. At present, the technology of electric opening and closing of vehicles is mature in application of the technology on tail gates and side sliding doors, the electric tail gates are widely visible in luxury vehicles, and the application of the electric tail gates in compact vehicles is gradually increased.

The current electric vehicle door limiter comprises a main arm and a sliding box, wherein one end of the main arm is hinged to a vehicle body through a rotating shaft, so that the main arm rotates around the rotating shaft, and the sliding box is fixed on a vehicle door and slides along the main arm. In the moving process of the door switch, the double turbine drives the double gear to rotate, so that the main arm slides to pull the door switch.

The motion of the limiter is compound motion, the main arm rotates around the rotation shaft of the limiter, and the sliding box rotates around the rotation shaft of the door along with the door and slides along the main arm. When the conventional electric limiter adopts a method of connecting and matching the main arm and the sliding box, the main arm is in a linear type, so that deviation exists between the main arm and an actual track, the load condition received by each point of the main arm in the movement process has large dispersion difference, and the defects of uneven running speed, abnormal noise of an opening and closing gear, ghost noise even jamming of a motor and the like are easily generated.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an electric vehicle door limiter and a vehicle, so as to solve the problems of clamping stagnation, uneven running speed and the like of the electric vehicle door limiter in the prior art.

In order to achieve the above purpose, the invention adopts the following technical scheme:

in one aspect, the present application provides an electric vehicle door check comprising:

a shell for being installed on the vehicle door, wherein a guide hole is arranged on the shell;

the middle part of the limiting arm is configured to arch towards one side, and when the vehicle door is opened and closed relative to the vehicle body, the arch line type of the limiting arm is matched with the movement track of the set point in the shell;

and the driving assembly is arranged in the shell and is used for driving the limiting arm to move relative to the shell.

In some alternative embodiments, the housing is provided with two limiting posts near the guide hole, and the two limiting posts are respectively located at two sides of the limiting arm and spaced from the limiting arm by a set distance.

In some alternative embodiments, one side of the limiting arm is provided with a driving tooth along a length direction thereof, and the driving assembly includes:

a transmission gear provided on the housing adjacent to the guide hole and engaged with the set point of the drive teeth;

and the motor is used for driving the transmission gear to rotate so as to drive the limiting arm to move relative to the shell.

In some alternative embodiments, the width of the drive teeth is the same as the width of the spacing arms.

In some alternative embodiments, the drive assembly further includes a current sensor for stopping the motor when an abnormal current signal is detected.

In some alternative embodiments, two ends of the arch portion of the limiting arm are respectively engaged with the transmission gear when the vehicle door is closed and at the maximum opening.

In some alternative embodiments, the chord height of the arch of the retaining arm is less than or equal to half the width of the retaining arm.

In some alternative embodiments, the width of the driving gear is greater than or equal to the sum of the width of the limiting arm and the chord height of the arch.

In some alternative embodiments, a stop is provided at the other end of the stop arm to prevent the stop arm from being pulled out of the guide hole.

On the other hand, the application also provides a vehicle, comprising the electric vehicle door limiter.

Compared with the prior art, the invention has the advantages that: the middle part of the limiting arm is configured to arch towards one side, when the vehicle door is opened and closed relative to the vehicle body, the arching line type of the limiting arm is matched with the movement track of the set point in the shell, and the limiting arm moves relative to the shell through the driving component, so that the problems that the main arm of the existing electric vehicle door limiter is linear, has deviation from the actual track, is large in load condition dispersion difference received by each point of the main arm in the movement process, and is easy to generate defects of uneven running speed, abnormal noise of the opening and closing gear, ghost noise of the motor running, even jamming and the like are solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front view of an electric vehicle door check according to the present invention;

fig. 2 is a bottom view of fig. 1.

In the figure: 1. a housing; 11. a limit column; 2. a limiting arm; 21. a drive tooth; 22. a stop block; 3. a drive assembly; 31. a transmission gear; 32. a motor; 4. and a rotation shaft of the limiter.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.

Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the present application provides an electric vehicle door limiter, which comprises a housing 1 for being mounted on a vehicle door and a limiting arm 2 with one end being hinged with the vehicle door, wherein the limiting arm 2 is driven by a driving component 3 positioned in the housing 1 to move relative to the housing 1, so as to drive the vehicle door to open and close relative to a vehicle body.

Specifically, a guide hole is formed in the shell 1; one end of the limiting arm 2 is hinged with the vehicle body, the other end of the limiting arm 2 passes through the guide hole and is in sliding connection with the shell 1, the middle part of the limiting arm 2 is configured to arch towards one side, and when the vehicle door is opened and closed relative to the vehicle body, the arch line type of the limiting arm 2 is matched with the movement track of the set point in the shell 1; the driving component 3 is used for driving the limiting arm 2 to move relative to the shell 1.

It will be appreciated that the direction of camber of the middle portion of the spacing arm 2 is along the width of the spacing arm 2, i.e. the Y-direction in fig. 1. Because the set point in the shell 1 slides along the limiting arm 2 and rotates around the rotation axis of the vehicle door when the vehicle door is opened relative to the vehicle body, the set point in the shell 1 can be fitted according to the track of the compound motion, the line shape of the middle arch of the limiting arm 2 is set to be matched with the motion track of the set point in the shell 1, and therefore, when the shell 1 is opened relative to the vehicle body along the vehicle door, the problem of clamping stagnation or uneven running speed can not occur in the process of sliding the shell 1 along the limiting arm 2.

Since one end of the check arm 2 is hinged to the vehicle body through the check rotating shaft 4 and the other end passes through the housing 1 fixed to the door and is checked in the door by the housing 1, factors influencing the sectional shape of the check arm 2 are many, such as the relative position and structure of the vehicle body and the door, and a slot in the door in which the check arm 2 slides. However, the cross-sectional shape of the stopper arm 2 has no effect on the realization of the stopper function, and thus, it is sufficient to satisfy the requirements in terms of structure, strength, and the like. For the multi-stage limiter, a groove or a neck is further arranged at a corresponding position on the limiting arm 2 according to the limiting angle of each stage, that is, when the vehicle door is opened to the limiting angle of each stage, the position of the limiting arm 2 corresponding to the housing 1 is provided with the groove or the neck which can enable the housing 1 to be more inclined to be positioned at the position. The cross-sectional shape of the stop arm 2 and the formation of the recess or neck are well known to those skilled in the art and will not be described in detail herein.

In this example, the limiting arm 2 is in a flat block shape, the thickness of the limiting arm 2 is preferably 3.5mm, the middle part is arched to one side to form an arc section, and two ends extend along the length direction of the limiting arm 2, namely, the X direction in fig. 1 to form a straight line section.

In some alternative embodiments, two limiting posts 11 are disposed on the housing 1 near the guide hole, and the two limiting posts 11 are respectively located on two sides of the limiting arm 2 and spaced apart from the limiting arm 2 by a set distance.

In order to avoid irregular swing of the limiting arm 2 when sliding at the wire guide hole, which causes unsmooth opening and abnormal sound, two limiting columns 11 are arranged on two sides of the width direction of the limiting arm 2, and the top height of each limiting column 11 is at least higher than the height of the limiting arm 2, which is close to the bottom surface of one side of the shell 1, so as to limit the swing of the limiting arm 2 in the Y direction.

It should be noted that, a gap is reserved between the limiting post 11 and the limiting arm 2 to prevent the limiting post 11 from affecting the movement of the limiting arm 2, and meanwhile, the contact between the columnar limiting structure and the limiting arm 2 is point contact, so as to reduce the influence on friction force caused when the limiting arm 2 moves as much as possible, and to enable the housing 1 to be blocked relative to the movement of the limiting arm 2. In this example, the clearance between the limiting post 11 and the limiting arm 2 is 0.5mm plus or minus 0.1mm.

In some alternative embodiments, the driving component 3 may be a telescopic piece fixed on the housing, and the telescopic end of the driving component is connected with the other end of the limiting arm 2, and the limiting arm 2 is driven to move in the guide hole relative to the housing 1 through the telescopic of the telescopic piece. The set point is coincident with the pilot hole.

In some alternative embodiments, the spacing arm 2 and the drive assembly 3 are driven by way of a gear engagement.

Specifically, as shown in fig. 2, a driving tooth 21 is disposed on one side of the limiting arm 2 along the length direction thereof, the driving assembly 3 includes a transmission gear 31 and a motor 32, and the transmission gear 31 is disposed on the housing 1 near the guiding hole and is engaged with a set point of the driving tooth 21; the motor 32 is used for driving the transmission gear 31 to rotate so as to drive the limiting arm 2 to move relative to the housing 1.

It will be appreciated that the side of the spacing arm 2 adjacent the housing 1 is provided with drive teeth 21, the drive teeth 21 fully filling one side of the spacing arm 2, whereby the spacing arm 2 is moved relative to the housing 1 by engagement of the drive gear 31 with the drive teeth 21.

The transmission gear 31 is arranged in the shell 1 and is close to the guide hole, and the set point is the engagement point of the transmission gear 31 and the limiting arm 2. In the case of this embodiment, the diameter of the guide hole should be slightly larger than the outer diameter of the spacing arm 2, i.e. a gap should be left between the guide hole and the spacing arm 2 to accommodate the error created by the spacing distance between the set point and the guide hole.

In this example, the transmission gear 31 is rotatably connected to a stopper cover (not shown) provided outside the housing 1 and the stopper arm 2.

In some alternative embodiments, the width of the driving teeth 21 is the same as the width of the spacing arms 2.

It will be appreciated that this is provided to increase the tolerance of the drive teeth 21 when engaged with the spacing arms 2, particularly when the drive teeth 21 are engaged where the spacing arms 2 arch, preventing disengagement.

In some alternative embodiments, the drive assembly 3 further includes a current sensor for stopping the motor 32 when an abnormal current signal is detected.

For example, when the door is locked by an external force, the current sensor detects that the motor 32 is abnormal current, and at this time, the motor 32 stops operating, and the door remains hovered. The aim of this arrangement is to prevent the door from being accidentally pinched and hurt a person when the door is opened or closed. The motor 32 can be a stepping motor and is connected with the control device in a signal manner, so that the number of turns of the transmission gear 31 can be controlled, the moving distance of the transmission gear 31 on the limiting arm 2 is further limited, and the aim of controlling the opening and closing angle of the vehicle door is fulfilled.

In some alternative embodiments, two ends of the arch portion of the limiting arm 2 are respectively engaged with the transmission gear 31 when the door is closed and the door is at the maximum opening.

In this example, the middle part of the limiting arm 2 arches to one side to form an arc section, and two ends extend along the length direction of the limiting arm 2 to form a straight line section. The two ends of the arched part of the limiting arm 2 are respectively the meshing points with the transmission gear 31 when the vehicle door is closed and the vehicle door is at the maximum opening, namely the starting point and the ending point of the set point movement track. Two ends are arranged as straight line segments to reserve a buffer space.

Alternatively, the length of the straight line segment near the engagement point of the maximum opening of the door is about 10mm.

It should be noted that, the engagement point between the door and the transmission gear 31 when the door is closed on the limiting arm 2 can be determined by a person skilled in the art according to the design requirements of the door and the vehicle body and the center line of the limiting arm 2, which is not described herein.

In some alternative embodiments, the chord height of the arch of the spacing arm 2 is less than or equal to half the width of the spacing arm 2.

For example, the width of the stopper arm 2 in the Y direction is preferably 11mm, and therefore the chord height of the arch of the stopper arm 2 is preferably 5.5mm or less.

Further, the width of the transmission gear 31 is 1.5 times or more the width of the limiting arm 2.

In order to allow the drive gear 31 to engage along the entire arch of the stop arm 2 when the stop arm 2 is moved relative to the housing 1, the width of the drive gear 31 in the Y-direction should be such that it completely covers the width of the stop arm 2 and the chord height of the arch of the stop arm 2. Therefore, when the chord height of the arch of the limiting arm 2 is less than or equal to half the width of the limiting arm 2, the width of the transmission gear 31 is 1.5 times or more the width of the limiting arm 2.

Of course, the width of the transmission gear 31 is not limited to 1.5 times the width of the stopper arm 2, but it should be ensured that the transmission gear 31 can be kept engaged with the arched portion of the stopper arm 2 at all times. The width of the drive gear 31 is thus the sum of the width of the stop arm 2 and the chord height of the arch.

In some alternative embodiments, a stopper 22 is provided at the other end of the limiting arm 2 to prevent the limiting arm 2 from being removed from the guide hole.

In this case, the other end of the limiting arm 2 is provided with a circular stop with a diameter larger than the inner diameter of the guide hole.

Specifically, a shell 1 is arranged on a vehicle door, and a guide hole is formed in the shell 1; one end of the limiting arm 2 is hinged with the vehicle body, the other end of the limiting arm 2 passes through the guide hole and is in sliding connection with the shell, the middle part of the limiting arm 2 is configured to arch towards one side, and when the vehicle door is opened and closed relative to the vehicle body, the arch line type of the limiting arm 2 is matched with the movement track of the set point in the shell 1; the driving component 3 is also arranged in the shell 1 and can drive the limiting arm 2 to move relative to the shell 1, so as to control the automatic opening and closing of the vehicle door relative to the vehicle body.

It can be seen that the vehicle using the electric door limiter can realize automatic opening and closing of the door by controlling the start and stop of the driving assembly 3. And through the arch line type of the limiting arm 2 and the movement track of the set point in the shell 1, when the shell 1 moves along the limiting arm 2, the movement track of the electric vehicle door limiter can be overlapped with the theoretical movement track, so that the opening and closing of the vehicle door can run smoothly, the transmission efficiency is improved, the failure rate is reduced, and meanwhile, the technological sense of the vehicle is also improved.

The opening and closing angle of the vehicle door relative to the vehicle body can be determined according to the design requirement of the vehicle, a worker in the field can determine the arc length of the arched part of the limiting arm 2 according to the opening and closing angle of the vehicle door, and the arched line type of the limiting arm 2 is determined by matching with the movement track of the vehicle door relative to the rotation of the vehicle body, the central line position of the limiting arm 2, the hinge position of the vehicle door and the like.

Further, the width of the driving gear 31 is equal to or greater than the sum of the width of the limiting arm 2 and the chord height of the arch.

In order to allow the drive gear 31 to engage along the entire arch of the stop arm 2 when the stop arm 2 is moved relative to the housing 1, the width of the drive gear 31 in the Y-direction should be such that it completely covers the width of the stop arm 2 and the chord height of the arch of the stop arm 2. For example, when the chord height of the arch of the limiting arm 2 is less than or equal to half the width of the limiting arm 2, the width of the transmission gear 31 is 1.5 times or more the width of the limiting arm 2.

The working principle of the embodiment of the application is as follows: the limiting arm 2 passes through the guide hole on the shell 1, and the driving tooth 21 on one side of the limiting arm 2 is meshed with the transmission gear 31 on the shell 1, as the middle part of the limiting arm 2 is configured to arch towards one side, the linear configuration of the arch is matched with the movement track of the set point in the shell 1, and the two ends of the arch part are respectively the meshing points of the limiting arm 2 and the transmission gear 31 when the vehicle door is closed and at the maximum opening degree, so that when the transmission gear 31 rotates, the limiting arm 2 moves relative to the shell 1, the vehicle door can be evenly opened and closed relative to the vehicle body, and the clamping stagnation cannot occur. When the door is blocked by an external force, the current sensor detects that the motor 32 generates an abnormal current signal, and at the moment, the motor 32 stops working, and the door is kept in a hovering state.

According to the electric vehicle door limiter and the vehicle, the camber line type of the limiting arm 2 is matched with the movement track of the set point in the shell 1, so that when the shell 1 is opened along with the vehicle door relative to the vehicle body, the problem of clamping stagnation or uneven running speed cannot occur when the shell 1 slides along the limiting arm 2; two limit posts 11 are arranged on two sides of the width direction of the limit arm 2 so as to limit the swing of the limit arm 2 in the Y direction; by arranging the current sensor, the situation that a person is injured by mistaken clamping when the vehicle door is opened and closed is prevented; the width of the transmission gear 31 is larger than or equal to the sum of the width of the limiting arm 2 and the chord height of the arch, so that the transmission gear 31 can be ensured to be always meshed with the arch part of the limiting arm 2; a stopper 22 is provided at the other end of the stopper arm 2 to prevent the stopper arm 2 from coming out of the guide hole. The vehicle using the electric vehicle door limiter can realize automatic opening and closing of the vehicle door by controlling the starting and stopping of the driving assembly 3. And through the arch line type of the limiting arm 2 and the movement track of the set point in the shell 1, when the shell 1 moves along the limiting arm 2, the movement track of the electric vehicle door limiter can be overlapped with the theoretical movement track, so that the opening and closing of the vehicle door can run smoothly, the transmission efficiency is improved, the failure rate is reduced, and meanwhile, the technological sense of the vehicle is also improved.

In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description of the present application and simplification of the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

It should be noted that in this application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electric vehicle door check, comprising:

a housing (1) for mounting on a vehicle door, provided with a guide hole;

the limiting arm (2) is hinged with the vehicle body at one end, the other end of the limiting arm passes through the guide hole and is in sliding connection with the shell (1), the middle part of the limiting arm (2) is configured to arch towards one side, and when the vehicle door is opened and closed relative to the vehicle body, the arch line type of the limiting arm (2) is matched with the movement track of the set point in the shell (1);

and the driving assembly (3) is arranged in the shell (1) and is used for driving the limiting arm (2) to move relative to the shell (1).

2. The electric vehicle door limiter according to claim 1, wherein two limiting posts (11) are arranged at the position, close to the guide hole, of the shell (1), and the two limiting posts (11) are respectively positioned at two sides of the limiting arm (2) and are spaced from the limiting arm (2) by a set distance.

3. The electric vehicle door check according to claim 1, wherein one side of the check arm (2) is provided with a driving tooth (21) along its length direction, the driving assembly (3) comprising:

a transmission gear (31) arranged on the housing (1) close to the guide hole and meshed with the set point of the driving teeth (21);

and the motor (32) is used for driving the transmission gear (31) to rotate so as to drive the limiting arm (2) to move relative to the shell (1).

4. A motorized vehicle door check according to claim 3, characterized in that the width of the driving tooth (21) is the same as the width of the check arm (2).

5. A motorized vehicle door check as claimed in claim 3, wherein the drive assembly (3) further comprises a current sensor for stopping the motor (32) when an abnormal current signal is detected.

6. A motorized vehicle door check according to claim 3, wherein the two ends of the arched portion of the check arm (2) are respectively the points of engagement with the transmission gear (31) when the vehicle door is closed and at maximum opening.

7. The electric vehicle door check according to claim 1, characterized in that the chord height of the camber of the check arm (2) is less than or equal to half the width of the check arm (2).

8. A motorized vehicle door check as set forth in claim 3, wherein the width of the drive gear (31) is equal to or greater than the sum of the width of the check arm (2) and the chord height of the camber.

9. The electric vehicle door limiter according to claim 1, characterized in that the other end of the limiting arm (2) is provided with a stopper (22) to prevent the limiting arm (2) from coming out of the guide hole.

10. A vehicle comprising a motorized door check as claimed in any one of claims 1-9.