CN213807213U - Boosting device and vehicle door and vehicle with same - Google Patents

Abstract

The embodiment of the application provides a boosting device and have its door and vehicle, wherein, boosting device includes: a drive mechanism; the sliding assembly is in transmission connection with the driving mechanism and comprises a first sliding part, and the first sliding part moves between a first position and a second position under the driving of the driving mechanism; the first sliding part triggers the first microswitch when moving to a first position so as to enable the first microswitch to send a first stop signal, and the first sliding part triggers the second microswitch when moving to a second position so as to enable the second microswitch to send a second stop signal; and the controller is electrically connected with the driving mechanism and controls the driving mechanism to stop running under the condition that the controller receives the first stop signal or the second stop signal. The boosting device of the embodiment of the application can realize automatic control over the first sliding part and has the advantages of being rapid in response, high in stability and the like.

Description

Boosting device and vehicle door and vehicle with same

Technical Field

The application relates to the technical field of vehicles, in particular to a boosting device, a vehicle door with the boosting device and a vehicle with the boosting device.

Background

In the related art, a boosting device for a vehicle door is provided, which detects a movement position of a push rod through a hall sensor and controls the movement of the push rod, so as to realize automatic control of the boosting device. However, the hall sensor is easily interfered by electromagnetic interference of other electronic devices on the vehicle, so that the stability of the hall sensor is poor, and the automatic control function of the boosting device is affected.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a boosting device and a vehicle door and a vehicle with the same, so as to solve or alleviate one or more technical problems in the prior art.

In a first aspect, an embodiment of the present application provides a boosting device, including:

a drive mechanism;

the sliding assembly is in transmission connection with the driving mechanism and comprises a first sliding part, and the first sliding part moves between a first position and a second position under the driving of the driving mechanism;

the first sliding part triggers the first microswitch when moving from the second position to the first position so as to enable the first microswitch to send a first stop signal, and the first sliding part triggers the second microswitch when moving from the first position to the second position so as to enable the second microswitch to send a second stop signal;

the controller is electrically connected with the driving mechanism and controls the driving mechanism to operate positively under the condition of receiving a door opening instruction, so that the first sliding part moves from the first position to the second position; and controlling the driving mechanism to stop running under the condition of receiving the first stop signal or the second stop signal.

In an embodiment, the sliding assembly further includes a second sliding portion, the second sliding portion drives the first sliding portion to move between the first position and the second position under the driving of the driving mechanism, an elastic member is disposed between the second sliding portion and the first sliding portion, and the elastic member is used for driving the first sliding portion to move from the second position to the third position, wherein the second position is located between the first position and the third position.

In one embodiment, the boosting device further includes:

the first sliding part is positioned at a first position and triggers the first microswitch so that the first microswitch sends a reverse signal;

in response to the reverse rotation signal, the controller controls the driving mechanism to operate in reverse to move the first sliding part from the third position to the first position.

In one embodiment, the second sliding part is provided with a first protrusion for triggering the first or second microswitch.

In one embodiment, the first sliding part is provided with a second projection for triggering the third microswitch.

In one embodiment, the slide assembly further comprises:

and the screw is in transmission connection with the driving mechanism, and the second sliding part is sleeved on the screw and is in threaded fit with the screw.

In one embodiment, the slide assembly further comprises:

the connecting portion, connecting portion and second sliding part sliding fit, first sliding part are installed in connecting portion, and wherein, one in connecting portion and the second sliding part is equipped with anticreep groove, and another is equipped with the anticreep muscle with anticreep groove sliding fit.

In one embodiment, the boosting device further includes:

the transmission part comprises a first transmission piece and a second transmission piece which are coaxially connected, the first transmission piece is in transmission fit with the output end of the driving mechanism, the screw rod is provided with a transmission fit part, and the second transmission piece is in transmission fit with the transmission fit part.

In one embodiment, the output end of the driving mechanism is provided with a worm, the first transmission member is a worm wheel, and the worm is in transmission fit with the worm wheel.

In one embodiment, the lead angle of the worm is less than the equivalent friction angle between the worm and the worm wheel.

In one embodiment, the second transmission member and the transmission matching part are a pair of spur gears.

In a second aspect, embodiments of the present application provide a vehicle door including a boosting device according to embodiments of the present application.

In a third aspect, embodiments of the present application provide a vehicle including a vehicle door according to embodiments of the present application.

By adopting the technical scheme, the embodiment of the application can realize automatic control on the first sliding part, particularly can avoid safety accidents caused by accidental closing of the car door when the first sliding part moves to the second position, has higher safety, and has the advantages of rapid response, high stability and the like.

The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present application will be readily apparent by reference to the drawings and following detailed description.

Drawings

In the drawings, like reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily to scale. It is appreciated that these drawings depict only some embodiments in accordance with the disclosure and are therefore not to be considered limiting of its scope.

FIG. 1 shows an exploded view of a booster device according to an embodiment of the present application;

fig. 2 shows a schematic structural diagram of a boosting device according to an embodiment of the application when a first microswitch is triggered;

fig. 3 shows a schematic structural diagram of a boosting device according to an embodiment of the application when a second microswitch is triggered;

fig. 4 is a schematic structural diagram of a boosting device according to an embodiment of the application when a third microswitch is triggered;

fig. 5 is a schematic structural view of a boosting device according to an embodiment of the present application when a slide portion is located at a first position;

fig. 6 is a schematic structural view showing a boosting device according to an embodiment of the present application when a slide portion is located at a second position;

fig. 7 is a schematic structural view showing a boosting device according to an embodiment of the present application when a slide portion is located at a third position;

fig. 8 is a schematic structural view of a boosting device according to an embodiment of the present application when a slide portion moves from a third position to a first position;

fig. 9 shows a partial cross-sectional view of a slide assembly of a booster according to an embodiment of the present application.

Description of reference numerals:

a boosting device 1;

a drive mechanism 10; a motor 11; a worm 12;

a slide assembly 20; a first slide portion 21; the second convex portion 211; a second slide portion 22; a first boss portion 221; a thread-fitting cavity 222; a slide chamber 223; the anti-slip ribs 224; an elastic member 23; a screw 24; a drive engaging portion 241; a connecting portion 25; the drop-off prevention groove 251;

a transmission section 30; a first transmission member 31; a second transmission member 32; a fixed shaft 33;

a housing 40;

a first microswitch 51; a second microswitch 52; a third microswitch 53;

and (4) a B column 2.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present application. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

A booster device 1 according to an embodiment of the present application is described below with reference to fig. 1 to 9. The boosting device 1 of the embodiment of the present application is suitable for being mounted on a vehicle door (not shown in the figure) and used for pushing the vehicle door outwards from a closed state by a certain angle so as to facilitate a passenger to open the vehicle door.

As shown in fig. 1 to 4, a boosting device 1 according to an embodiment of the present application includes a drive mechanism 10, a slide assembly 20, a first microswitch 51, a second microswitch 52 and a controller.

Specifically, the sliding assembly 20 is in transmission connection with the driving mechanism 10, and the sliding assembly 20 includes a first sliding portion 21, and the first sliding portion 21 moves between a first position and a second position under the driving of the driving mechanism 10. Wherein the driving mechanism 10 may comprise a motor 11.

In one example, the drive device further includes a housing 40, the housing 40 defining a cavity therein, the drive mechanism 10, the slide assembly 20, and the first and second microswitches 51 and 52 all being mounted within the cavity. The housing 40 is provided with an opening corresponding to the position of the first sliding portion 21 for the sliding portion to protrude from the inside of the housing 40. The first position and the second position at which the first sliding portion 21 is located may be positions relative to the housing 40. As shown in fig. 2, when the first slide portion 21 is located at the first position, the first slide portion 21 is located inside the housing 40; as shown in fig. 3, when the first slide portion 21 is located at the second position, at least a portion of the first slide portion 21 protrudes from the housing 40. In the process that the first sliding portion 21 moves from the first position to the second position, the first sliding portion 21 abuts against the vehicle body of the vehicle, so that the boosting device 1 is pushed away from the vehicle body, and the vehicle door is driven to rotate by a certain angle, so that a passenger or a driver can open the vehicle door conveniently.

Further, the first micro switch 51 and the second micro switch 52 may be installed inside the housing 40, and the first micro switch 51 and the second micro switch 52 are disposed corresponding to the sliding assembly 20, the first micro switch 51 is triggered when the first sliding portion 21 moves from the second position to the first position, so that the first micro switch 51 sends the first stop signal, and the second micro switch 52 is triggered when the first sliding portion 21 moves from the first position to the second position, so that the second micro switch 52 sends the second stop signal. As will be understood by those skilled in the art, a microswitch is a switch having a minute contact interval and a snap action mechanism, a contact mechanism for performing a switching action with a prescribed stroke and a prescribed force, covered with a housing, and having a driving lever outside thereof, and is called a microswitch, also called a sensitive switch, because the contact pitch of the switch is relatively small. The first and second micro-switches 51 and 52 may be triggered by the first sliding part 21 during the movement, or may be triggered by other components of the sliding assembly 20 that can move relatively, such as the second sliding part 22.

The controller is electrically connected to the driving mechanism 10, and when receiving a door opening command, the controller controls the driving mechanism 10 to operate in a forward direction, so that the first sliding portion 21 moves from the first position to the second position. The controller controls the driving mechanism 10 to stop operating when receiving the first stop signal or the second stop signal.

The operation principle of the control device according to the example of the present application is described below.

In one example, the controller is electrically connected to a Body Control Module (BCM) on the vehicle. When the controller receives a door opening instruction sent by the vehicle body control module, the controller controls the motor 11 of the driving mechanism 10 to operate in the forward direction, and then the motor 11 drives the first sliding portion 21 to move from the first position to the second position, that is, the first sliding portion 21 extends outwards from the inside of the shell 40, so that the vehicle door rotates by a certain angle, and the vehicle door is pushed. In the process, when the vehicle door moves from the first position to the second position, the second microswitch 52 is triggered and sends a second stop signal to the controller, and in response to the second stop signal, the controller controls the motor 11 of the driving mechanism 10 to stop operating, so that the first sliding part 21 stays at the current second position. Therefore, the boosting device 1 can enable the vehicle door to be in an open state, so that safety accidents caused by accidental closing of the vehicle door are avoided, and an anti-pinch effect is achieved.

Further, when the door needs to be closed, the controller controls the motor 11 of the driving mechanism 10 to operate in reverse, so that the first sliding part 21 moves from the second position to the first position, i.e. the first sliding part 21 retracts to the inside of the housing 40, so that the door can be normally closed. In the process, when the vehicle door moves to the first position, the first microswitch 51 is triggered and sends a first stop signal to the controller, and in response to the first stop signal, the controller controls the motor 11 of the driving mechanism 10 to stop operating, so that the first sliding part 21 stays at the current first position.

According to the booster 1 of the embodiment of the present application, the detection of the movement position of the first sliding portion 21 can be realized by providing the first microswitch 51, the second microswitch 52 and the controller, and the controller controls the driving mechanism 10 to operate or stop according to the signals sent by the first microswitch 51 and the second microswitch 52 to control the movement or stop of the first sliding portion 21. Therefore, automatic control over the first sliding portion 21 can be achieved, and particularly when the first sliding portion 21 moves to the second position, the controller can control the first sliding portion 21 to stay at the second position, so that the vehicle door is guaranteed to be in an open state, safety accidents caused by accidental closing of the vehicle door are avoided, and high safety is achieved. Furthermore, compared with the boosting device 1 in the related art that a hall sensor or other sensors are used for detecting the position of a moving part, the boosting device 1 in the embodiment of the present application performs position detection on the first sliding part 21 by using the first micro switch 51 and the second micro switch 52, because the micro switches have the advantages of high sensitivity, short response time, and the like, the position detection on the first sliding part 21 is relatively accurate, and the micro switches are not interfered by electromagnetic waves of other electronic devices on the vehicle, thereby solving the technical problem that the hall sensor of the boosting device 1 in the related art cannot accurately detect the position of the sliding part when being interfered by electromagnetic waves, and therefore, the boosting device 1 in the embodiment of the present application further has the advantages of rapid response, high stability, and the like.

In one embodiment, as shown in fig. 1-4, the slide assembly 20 further includes a second slide 22. Under the driving of the driving mechanism 10, the second sliding portion 22 drives the first sliding portion 21 to move between the first position and the second position, an elastic element 23 is disposed between the second sliding portion 22 and the first sliding portion 21, and the elastic element 23 is used for driving the first sliding portion 21 to move from the second position to the third position, where the second position is located between the first position and the third position.

In one example, the elastic member 23 may be a spring, and both ends of the spring are respectively abutted between the first sliding portion 21 and the second sliding portion 22. Further, the spring is always in a compressed state, and the spring is deformed according to the relative positional relationship between the first sliding portion 21 and the second sliding portion 22, so that the spring applies an elastic force to the first sliding portion 21 in a direction away from the second sliding portion 22. Specifically, as shown in fig. 2 and 3, in the process that the first sliding portion 21 moves from the first position to the second position, the first sliding portion 21 abuts against the vehicle body and drives the vehicle door to rotate relative to the vehicle body, the first sliding portion 21 moves relative to the second sliding portion 22 in the direction toward the second sliding portion 22 under the action of the vehicle body, the elastic member 23 is gradually compressed, and when the first sliding portion 21 moves to the first position, the controller controls the driving mechanism 10 to stop operating so that the first sliding portion 21 stays at the first position. As shown in fig. 4, when the acting force of the vehicle body on the first sliding portion 21 is smaller than the elastic force of the elastic member 23 on the first sliding portion 21, for example, when the passenger or the driver pushes the vehicle door outward from the pushed-open state, the first sliding portion 21 moves in a direction away from the second sliding portion 22, that is, from the second position to the third position, by the elastic force.

It should be noted that, when the first sliding portion 21 moves to the third position, that is, after the door is pushed away by the passenger manually, in order to ensure that the door can be closed smoothly, the first sliding portion 21 needs to move from the third position to the first position.

In one embodiment, as shown in fig. 1 to 4, the booster 1 further includes a third microswitch 53, and when the first slide portion 21 is located at the third position, the third microswitch 53 is triggered so that the third microswitch 53 transmits a reverse rotation signal. In response to the reverse rotation signal, the controller controls the driving mechanism 10 to operate in reverse to move the first sliding portion 21 from the third position to the first position. Therefore, by arranging the third microswitch 53, when the first sliding part 21 moves to the third position, the first sliding part 21 can be controlled to move from the third position to the first position, so that the automatic retraction of the first sliding part 21 is realized, and the smooth closing of the vehicle door is ensured. When the first sliding part 21 moves to the first position, the first microswitch 51 is triggered to make the first sliding part 21 stay at the first position.

The following describes, with reference to fig. 5 to 8, a movement process of the first slide portion 21 during the opening of the vehicle door of the booster 1, as a specific example.

As shown in fig. 5, the first slide portion 21 is located at the first position, at which the door is in a closed state. When the controller receives a door opening instruction sent by the vehicle body control module, the controller controls the motor 11 of the driving mechanism 10 to operate in the forward direction, the motor 11 drives the first sliding portion 21 to move from the first position to the second position, and in the process, the first sliding portion 21 abuts against the B column 2 of the vehicle body to drive the vehicle door to rotate relative to the vehicle body. As shown in fig. 6, the first sliding portion 21 moves to the second position, and the stroke of the first sliding portion 21 is 43mm, at this time, the door is pushed to the pushed open state by the first sliding portion 21. When the passenger or driver manually pushes the door outward, the first slide portion 21 is moved from the second position to the third position by the elastic force of the elastic member 23. As shown in fig. 7, the first slide portion 21 is moved to the third position where the stroke of the first slide portion 21 is 47mm and the door is out of contact with the first slide portion 21. At the same time, the third microswitch 53 is triggered and the controller controls the first slider 21 to move from the third position to the first position. As shown in fig. 8, the first sliding portion 21 is moved to the first position at this time, so that the door can be smoothly closed. Thereby, the booster 1 completes the boosting operation of the door.

In one embodiment, as shown in fig. 2-4, the second sliding portion 22 is provided with a first protrusion 221, and the first protrusion 221 is used for triggering the first micro switch 51 or the second micro switch 52.

In one example, the first protrusion 221 is formed by a side surface of the first slide portion 21 protruding outward. The first and second micro switches 51 and 52 may be mounted to the housing 40 and arranged at intervals in the moving direction of the first sliding portion 21. As shown in fig. 2, when the first sliding part 21 moves from the second position to the first position, the first protrusion 221 triggers a contact of the first microswitch 51; as shown in fig. 3, when the first sliding portion 21 moves to the second position, the first protrusion 221 activates the contact of the second microswitch 52.

In one embodiment, as shown in fig. 2-4, the first sliding portion 21 is provided with a second protrusion 211, and the second protrusion 211 is used for triggering the third microswitch 53.

In one example, the second convex portion 211 is formed by a side surface of the first slide portion 21 being convex outward. The third microswitch 53 is arranged on the side of the sliding assembly 20 opposite to the first microswitch 51 and the second microswitch 52, and the second protrusion 211 is arranged on the side opposite to the first protrusion 221, so as to avoid the first protrusion from mistakenly touching the third microswitch 53. As shown in fig. 4, when the first sliding portion 21 moves to the second position, the second protrusion 211 triggers the contact of the third microswitch 53.

In one embodiment, as shown in fig. 1-4, the sliding assembly 20 further includes a screw 24, the screw 24 is drivingly connected to the driving mechanism 10, and the second sliding portion 22 is sleeved on the screw 24 and threadedly engaged with the screw 24. Specifically, the drive mechanism 10 drives the screw 24 to rotate about its central axis, and the second sliding portion 22 can move in the axial direction of the screw 24 during rotation of the screw 24 because the screw 24 is threadedly engaged with the second sliding portion 22. Thus, by controlling the motor 11 of the driving mechanism 10 to operate in the forward direction or the reverse direction, the second sliding portion 22 can be moved along the screw 24, so as to drive the first sliding portion 21 to move from the first position to the second position or from the third position to the first position.

In one embodiment, as shown in fig. 1 and 9, the sliding assembly 20 further includes a connecting portion 25. Connecting portion 25 is slidably engaged with second sliding portion 22, and first sliding portion 21 is mounted on connecting portion 25, wherein one of connecting portion 25 and second sliding portion 22 is provided with anti-slip groove 251, and the other is provided with anti-slip rib 224 slidably engaged with anti-slip groove 251.

In one example, as shown in fig. 9, the second slide 22 defines a thread engagement cavity 222 and a slide cavity 223, wherein an inner peripheral wall of the thread engagement cavity 222 is configured with a thread structure that is thread-engaged with the screw 24. At least a portion of the connecting portion 25 is slidably disposed within the sliding chamber 223. The inner wall of the sliding cavity 223 is provided with an inward-protruding anti-slip rib 224, the end of the connecting portion 25 is configured with an anti-slip groove 251, the anti-slip rib 224 is located in the anti-slip groove 251, and the anti-slip rib 224 can slide along the anti-slip groove 251 in the relative movement process of the second sliding portion 22 and the connecting portion 25. Thereby, the second sliding portion 22 can be prevented from being detached from the connecting portion 25. The first sliding portion 21 is attached to one end of the connecting portion 25 away from the second sliding portion 22. The elastic member 23 is disposed in the sliding cavity 223, and two ends of the elastic member 23 respectively abut against the inner wall of the sliding cavity 223 and the connecting portion 25.

In one embodiment, as shown in fig. 1 to 4, the boosting device 1 further includes a transmission portion 30, the transmission portion 30 includes a first transmission member 31 and a second transmission member 32 which are coaxially connected, the first transmission member 31 is in transmission engagement with the output end of the driving mechanism 10, the screw 24 has a transmission engagement portion 241, and the second transmission member 32 is in transmission engagement with the transmission engagement portion 241.

In an example, the transmission portion 30 is sleeved on the fixed shaft 33 and can rotate around the fixed shaft 33, and the first transmission member 31 and the second transmission member 32 can be an integral piece, that is, the first transmission member 31 and the second transmission member 32 can rotate synchronously. Thus, when the output end of the driving mechanism 10 drives the first transmission member 31 to operate, the first transmission member 31 drives the second transmission member 32 to operate synchronously, and simultaneously the second transmission member 32 drives the transmission matching portion 241 to operate, the screw 24 is driven by the transmission matching portion 241 to rotate around the central axis thereof, so that the second sliding portion 22 drives the first sliding portion 21 to move along the axial direction of the screw 24.

Optionally, the output end of the motor 11 of the driving mechanism 10 is provided with a worm 12, the first transmission member 31 is a worm wheel, the worm 12 is in transmission fit with the worm wheel, and the worm wheel and the worm 12 are arranged in a mutually perpendicular manner in the axial direction. Therefore, the transmission ratio between the first transmission member 31 and the output end of the motor 11 is relatively large, and the structure between the first transmission member and the output end of the motor 11 is relatively compact, so that the installation space in the casing 40 can be saved, and the reduction of the structural sizes of the casing 40 and the boosting device 1 is facilitated. The worm 12 may be a left-handed worm 12 or a right-handed worm 12, which is not specifically limited in this application.

Further, the lead angle of the worm 12 is smaller than the friction angle. Thus, the worm wheel and the worm 12 can form reverse self-locking, namely, only the worm 12 drives the worm wheel to rotate, but not the worm wheel drives the worm 12 to rotate. Therefore, when the second transmission member 32 is engaged with the transmission matching portion 241, the step-by-step transmission from the output end of the motor 11 to the first sliding portion 21 is a one-way transmission, that is, only the screw 24 can drive the second sliding portion 22 to move, but the screw 24 cannot be driven by the second sliding portion 22 to rotate, so that the second sliding portion 22 can push the vehicle door away by a certain angle in the process of extending outward.

Optionally, the second transmission member 32 and the transmission matching portion 241 are a pair of spur gears. By configuring the second transmission member 32 and the transmission matching portion 241 as a pair of spur gears, it is beneficial to improve the matching accuracy of the second transmission member 32 and the transmission matching portion 241.

In a second aspect, the present embodiment provides a vehicle door including a boosting device 11 according to the present embodiment.

In one example, the booster 1 is mounted on a door body of a vehicle door. The boosting device 1 drives the first sliding portion 21 to extend outward through the driving mechanism 10, and the sliding portion abuts against the vehicle body of the vehicle in the process of extending outward, so as to push the vehicle door to rotate by a certain angle, so that a driver or a passenger can open the vehicle door conveniently.

In a third aspect, embodiments of the present application provide a vehicle including a vehicle door according to embodiments of the present application.

Other configurations of the vehicle of the above embodiments may be adopted by various technical solutions known to those skilled in the art now and in the future, and will not be described in detail herein.

The boosting device 1 of this application embodiment can realize the automatic control to first sliding part 21 through adopting above-mentioned technical scheme, especially when first sliding part 21 moves to the second position, and the controller can control first sliding part 21 and stop in the second position to guarantee that the door is in the state of opening, avoid the door accident to close and lead to the incident, thereby have higher security. Furthermore, by detecting the position of the first sliding portion 21 using the first microswitch 51 and the second microswitch 52, the technical problem that the position of the sliding member cannot be accurately detected when the hall sensor of the booster device 1 in the related art is subjected to electromagnetic interference is solved, and the microswitch of the booster device 1 in the embodiment of the present application is not subjected to electromagnetic interference of other electronic devices, and has high stability, so that the booster device 1 has advantages of rapid response, high stability, and the like.

In the description of the present specification, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The above disclosure provides many different embodiments or examples for implementing different structures of the application. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various changes or substitutions within the technical scope of the present application, and these should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (11)

1. A booster device, comprising:

the output end of the driving mechanism is provided with a worm;

the transmission part comprises a first transmission piece, the first transmission piece is a worm wheel and is in transmission fit with the worm, and the lead angle of the worm is smaller than the equivalent friction angle between the worm and the worm wheel;

the sliding assembly is in transmission connection with the driving mechanism through the transmission part and comprises a first sliding part which moves between a first position and a second position under the driving of the driving mechanism;

the first sliding part triggers the first microswitch to send a first stop signal when moving from the second position to the first position, and the first sliding part triggers the second microswitch to send a second stop signal when moving from the first position to the second position;

the controller is electrically connected with the driving mechanism, and the controller controls the driving mechanism to operate in a forward direction under the condition that a door opening instruction is received, so that the first sliding part moves from the first position to the second position; and controlling the driving mechanism to stop running under the condition of receiving the first stop signal or the second stop signal.

2. The boosting device as claimed in claim 1, wherein the sliding assembly further comprises a second sliding portion, the second sliding portion drives the first sliding portion to move between the first position and the second position under the driving of the driving mechanism, and an elastic member is disposed between the second sliding portion and the first sliding portion, the elastic member is configured to drive the first sliding portion to move from the second position to a third position, wherein the second position is located between the first position and the third position.

3. The booster of claim 2, further comprising:

the third microswitch is triggered when the first sliding part is positioned at the third position, so that the third microswitch sends a reversal signal;

in response to the reverse rotation signal, the controller controls the driving mechanism to operate in reverse to move the first sliding portion from the third position to the first position.

4. The booster of claim 2, wherein the second sliding portion is provided with a first protrusion for activating the first micro switch or the second micro switch.

5. A booster device according to claim 3, characterised in that the first slide is provided with a second projection for activating the third microswitch.

6. The booster of claim 2, wherein the slide assembly further comprises:

the screw rod, the screw rod pass through the drive division with actuating mechanism transmission cooperation, second sliding part cover is located the screw rod and with screw rod screw-thread fit.

7. The booster of claim 6, wherein the slide assembly further comprises:

the connecting portion, connecting portion with second sliding part sliding fit, first sliding part install in connecting portion, wherein, connecting portion with one of second sliding part is equipped with anticreep groove, and another is equipped with the anticreep muscle with anticreep groove sliding fit.

8. A propulsion device as claimed in claim 6, wherein the transmission portion further comprises a second transmission member coaxially connected to the first transmission member, the screw having a transmission engagement portion, the second transmission member being in transmission engagement with the transmission engagement portion.

9. The booster of claim 8 wherein the second transmission member and the drive engagement portion are a pair of spur gears.

10. A vehicle door comprising a booster according to any one of claims 1 to 9.

11. A vehicle comprising a door as claimed in claim 10.

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