CN110656836A

CN110656836A - Door opening and closing device, door assembly and have its vehicle

Info

Publication number: CN110656836A
Application number: CN201810698518.5A
Authority: CN
Inventors: 聂礼鹏; 罗威; 吕高峰
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2018-06-29
Filing date: 2018-06-29
Publication date: 2020-01-07
Anticipated expiration: 2038-06-29
Also published as: CN110656836B

Abstract

The invention discloses a vehicle door opening and closing device, a vehicle door assembly and a vehicle with the vehicle door assembly. A vehicle door opening and closing device according to an embodiment of a first aspect of the present invention includes: the hinge comprises an electric driving part and a hinge, wherein the electric driving part comprises a motor, a transmission assembly and a clutch; the transmission assembly is connected with the hinge to drive the hinge to be opened at any angle, the clutch is connected between the motor and the transmission assembly or arranged in the transmission assembly or arranged between the hinge and the transmission assembly, and when the clutch is in a separated state, a part of the hinge, which is used for being connected with the electric drive component, is kept and limited at the current position. The vehicle door opening and closing device can enable the vehicle door to be opened to any proper angle, and the hand feeling of opening the vehicle door is good.

Description

Door opening and closing device, door assembly and have its vehicle

Technical Field

The invention relates to the technical field of vehicles, in particular to a vehicle door opening and closing device, a vehicle door assembly and a vehicle with the vehicle door assembly.

Background

In the related art, the conventional vehicle door needs to manually apply force on the vehicle door to close the vehicle door, or a hydraulic device is added to automatically open and close the vehicle door. The opening and closing of the vehicle door to the designated position are realized through the relative movement of the hinge seat plate and the flap plate and the limiting function of the limiter.

Traditional manual door can not be independently opened and closed, and it seems comparatively difficult to open and close the door under the condition that both hands are occupied. Meanwhile, the traditional stopper only has a limiting function of one gear or two gears, and can not meet the requirement of opening or closing any position in the action process of the vehicle door under special conditions. There is also the problem with electric vehicle doors that they cannot be opened at any angle, and in the event of motor failure, the passenger pushes or pulls the door without experiencing the moment (feel) transmitted by the door.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a vehicle door opening and closing device which can enable a vehicle door to be opened to any proper angle and has good opening hand feeling.

The invention also provides a vehicle door assembly with the vehicle door opening and closing device and a vehicle with the vehicle door assembly.

A vehicle door opening and closing device according to an embodiment of a first aspect of the present invention includes: the hinge comprises an electric driving part and a hinge, wherein the electric driving part comprises a motor, a transmission assembly and a clutch; the transmission assembly is connected with the hinge to drive the hinge to be opened at any angle, the clutch is connected between the motor and the transmission assembly or arranged in the transmission assembly or arranged between the hinge and the transmission assembly, and when the clutch is in a separated state, a part of the hinge, which is used for being connected with the electric drive component, is kept and limited at the current position.

According to the vehicle door opening and closing device provided by the embodiment of the invention, when the motor fails, the power supply of the electric driving part to the hinge can be cut off, so that the interference caused by manually opening the vehicle door is avoided; on this basis, the adoption has the hinge of spacing holding effect, for the hinge provides holding torque, not only plays better limiting displacement to the door, can realize the stepless regulation of door opening angle moreover, makes the door can stop at arbitrary suitable angle, in addition, when external force overcomes holding torque and manually opens the door, can feel the moment of door transmission, opens the door and feels better, take and experience the preferred.

In some embodiments, the hinge comprises: the hinge assembly comprises a first hinge, a second hinge, a pivot shaft and a retaining element, wherein the first hinge is suitable for being connected with a vehicle body; the second hinge is suitable for being connected with a vehicle door; the pivot shaft is connected with the second hinge and is connected with a power output part of the electric driving part; the retaining member acts on at least one of the pivot shaft and the second hinge to prevent rotation of the second hinge relative to the first hinge.

In some embodiments, the retaining member is disposed within the first hinge, the pivot shaft passes through the first hinge to secure with the second hinge, and the retaining member is adapted to the pivot shaft to apply a retaining torque to the pivot shaft.

In some embodiments, the retaining element comprises an elastic element, a securing ring, which acts directly or indirectly on the securing ring, which surrounds and is fixedly connected to the pivot shaft.

In some embodiments, the fixing ring comprises a main ring body sleeved on the pivot shaft and a roller pin embedded on the main ring body, and the roller pin can rotate around the central axis of the roller pin.

In some embodiments, the retainer further comprises at least one support block, and the resilient member is stopped against the needle roller by the at least one support block.

In some embodiments, the at least one support block includes a first support block and a second support block, a first end of the first support block is engaged with an end wedge of the second support block facing away from the needle roller, and a second end of the first support block abuts against the elastic member.

In some embodiments, the elastic member is a compression spring, the second end of the second support block has a positioning boss, the first hinge includes a housing and a cover, the housing has a first open mouth, the cover covers the first open mouth, the elastic member is sleeved on the positioning boss, and two ends of the elastic member respectively abut against the second end of the first support block and the cover.

In some embodiments, the housing includes a first sheet, a first housing and a second housing connected to the first sheet, the first housing and the second housing substantially form an L shape, the elastic member and the first supporting block are located in a first receiving cavity defined by the first sheet and the first housing, the first opening is formed in the first housing, and the second supporting block, the fixing ring and a portion of the pivot shaft are located in a receiving cavity defined by the second housing.

In some embodiments, the first panel includes a main panel body having a mounting opening opposite the second support block and a cover panel body removably connected to the main panel body within the mounting opening.

In some embodiments, the pivot shaft has a limit flange, the housing of the first hinge has a second open opening, the retainer is sleeved on the pivot shaft in the first housing, and the limit flange blocks the second open opening at the outer side of the second open opening.

In some embodiments, the second hinge comprises a second leaf and a connecting plate vertically fixed to the second leaf, the limiting flange is sandwiched between the connecting plate and the shell of the first hinge, and a part of the first pivot shaft extends into the connecting plate and is fixedly connected with the connecting plate through a bolt.

In some embodiments, the transmission assembly includes a plurality of speed reducers and a final drive mechanism connected to the speed reducers, and the clutches are disposed between adjacent speed reducers.

In some embodiments, the speed reducer is a spur gear speed reducer or a bevel gear speed reducer, and the final transmission mechanism is any one of a belt transmission mechanism, a lead screw nut transmission mechanism, a rack and pinion transmission mechanism, and a link mechanism.

In some embodiments, the transmission assembly includes spur gear reduction unit, bevel gear reduction unit and the belt drive mechanism that connects gradually, the spur gear reduction unit with the motor shaft of motor is connected, the spur gear reduction unit with the bevel gear reduction unit passes through the clutch is connected, the bevel gear reduction unit includes drive bevel gear and driven bevel gear, the belt drive mechanism includes drive pulley, driven pulley and drive belt, driven bevel gear with drive pulley coaxial fastening, driven pulley with the pivot axle passes through the sleeve coaxial fastening.

In some embodiments, the clutch is a claw clutch, the clutch includes a fixed clutch claw, a movable clutch claw and a clutch switching member, the fixed clutch claw is connected to the first stage transmission member of the transmission assembly, the movable clutch claw is slidably sleeved on the output shaft of the spur gear reducer, and the clutch switching member is connected to the movable clutch claw so as to be suitable for driving the movable clutch claw to be engaged with or disengaged from the fixed clutch claw.

In some embodiments, the movable clutch claw is in sliding fit with the output shaft through a sliding key, and the clutch switching piece is used for driving the movable clutch claw to slide on the output shaft towards or away from the fixed clutch claw.

In some embodiments, the clutch switch is a linkage assembly, the clutch switch including: the clutch mechanism comprises a supporting seat and a control arm hinged to the supporting seat, wherein the control arm is generally L-shaped, one end of the control arm is suitable for pushing the movable clutch claw, and the middle part of the control arm is hinged to the supporting seat.

The door assembly according to the second aspect of the invention includes the door and the door opening and closing device.

According to the vehicle of the third aspect embodiment of the invention, the vehicle door assembly is included.

In some embodiments, the controller is electrically connected with the speed sensor, the motor and the clutch to control the clutch to be switched to a separation state and control the motor to stop when the rotating speed detected by the speed sensor is not within a preset threshold range.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a vehicle door opening and closing apparatus according to an embodiment of the present invention.

Fig. 2 is a schematic view of a hinge of a door opening and closing device according to an embodiment of the present invention.

Fig. 3 is a schematic top view of fig. 1.

Fig. 4 is a partial schematic view of a vehicle door opening and closing apparatus according to an embodiment of the present invention.

Fig. 5 is another partial schematic view of the door opening and closing device according to the embodiment of the present invention.

Reference numerals:

the door opening and closing device 100 is provided with a door opening and closing mechanism,

an electric driving part 10, a motor 11, a transmission assembly 12, a spur gear reducer 121, an output shaft 121a, a bevel gear reducer 122, a drive bevel gear 122a, a driven bevel gear 122b, a belt transmission mechanism 123, a drive pulley 123a, a driven pulley 123b, a synchronous belt 123c, a clutch 13, a fixed clutch pawl 131, a movable clutch pawl 132, a clutch switching part 133, a support seat 133a, a control arm 133b, a sliding key 134, a shift lever 135,

the hinge 20, the first hinge 21, the housing 211, the first leaf 211a, the first housing 211b, the second housing 211c, the main plate 211d, the cover plate 211e, the cover 212, the second hinge 22, the second leaf 221, the connecting plate 222, the pivot shaft 23, the retaining member 24, the elastic member 241, the fixing ring 242, the first supporting block 243, the second supporting block 244, the positioning boss 244a, the sleeve 25, the bolt 26,

a chute m.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

A vehicle door opening and closing device 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 5.

As shown in fig. 1, a vehicle door opening and closing device 100 according to an embodiment of a first aspect of the present invention includes: the electric driving component 10 and the hinge 20, wherein the electric driving component 10 comprises a motor 11, a transmission assembly 12 and a clutch 13; the transmission assembly 12 is connected with the hinge 20 to drive the hinge 20 to open at any angle, the clutch 13 is connected between the motor 11 and the transmission assembly 12 or arranged inside the transmission assembly 12 or between the hinge 20 and the transmission assembly 12, and when the clutch 13 is in a separated state, the part of the hinge 20 for connecting with the electric driving part 10 is kept and limited at the current position.

It should be noted that the portion of the hinge 20 for connecting with the electric drive unit 10 may be the pivot shaft 23 of the hinge 20, or may be a hinge constituting the hinge 20. The hinge 20 is a structure having a moment holding function.

In other words, in some embodiments, the clutch 13 may be disposed between the motor shaft of the motor 11 and the primary transmission member of the transmission assembly 12, in other embodiments, the clutch 13 may be disposed between any adjacent two of the plurality of transmission members inside the transmission assembly 12, and further the clutch 13 may be disposed between the final transmission member of the transmission assembly 12 and the hinge 20.

According to the vehicle door opening and closing device provided by the embodiment of the invention, when the motor 11 fails, the clutch 13 is arranged, so that the power supply of the electric driving part 10 to the hinge 20 can be cut off, and the interference caused by manually opening the vehicle door can be avoided; on this basis, the adoption has spacing retaining action's hinge 20, for hinge 20 provides holding torque, not only plays better limiting displacement to the door, can realize the stepless regulation of door opening angle moreover, makes the door stop in arbitrary suitable angle, in addition, when external force overcomes holding torque and manually opens the door, can feel the moment of door transmission, open the door feel better, take experience preferred.

In some embodiments, the hinge 20 includes: the hinge comprises a first hinge 21, a second hinge 22, a pivot shaft 23 and a retaining piece 24, wherein the first hinge 21 is suitable for being connected with a vehicle body; the second hinge 22 is adapted to be connected to a vehicle door. The pivot shaft 23 is connected with the second hinge 22, and the pivot shaft 23 is connected with a power output part of the electric drive part 10; the retainer 24 acts on at least one of the pivot shaft 23 and the second hinge 22 to prevent the second hinge 22 from rotating relative to the first hinge 21.

Specifically, the pivot shaft 23 is fixedly connected to the second hinge 22, the pivot shaft 23 passes through the first hinge 21, the first hinge 21 and the pivot shaft 23 form a revolute pair, and the pivot shaft 23 is fixedly connected to a power output member (final transmission member) of the electric drive unit 10.

Thus, the holding member 24 applies a holding force or a holding torque to the second hinge 22 or the pivot shaft 23, thereby providing the holding torque to the second hinge 22, and thus enabling the door connected thereto to be stably and reliably restrained.

As shown in fig. 2, the holder 24 is provided in the first hinge 21, the pivot shaft 23 passes through the first hinge 21 to be fixed to the second hinge 22, and the holder 24 is adapted to the pivot shaft 23 to apply a holding torque to the pivot shaft 23. Thus, the retainer 24 is integrated in the first hinge 21 of the hinge 20, and the entire door opening and closing device is more compact and convenient to arrange.

Further, the holder 24 includes an elastic member 241, a fixing ring 242, the elastic member 241 directly or indirectly acts on the fixing ring 242, and the fixing ring 242 is sleeved and fixedly connected to the pivot shaft 23. Therefore, the elastic restoring force of the elastic member 241 directly or indirectly acts on the fixing ring 242 and further indirectly acts on the pivot shaft 23 fixedly connected to the fixing ring 242, so as to apply a holding torque or a holding torque to the pivot shaft 23, so that the pivot shaft 23 does not move freely due to the loss of the locking force of the electric driving part 10 when the clutch 13 is switched to the off state, and the pivot shaft 23 can still stay stably and be maintained in the current state when an external force not exceeding a preset magnitude is applied.

It will be appreciated that the retaining ring 242 may be an insert mounted on the pivot shaft 23, and the retaining member 24 is not limited to the above-described structure, and may be a torsion bearing.

In some embodiments, the fixing ring 242 includes a main ring body sleeved on the pivot shaft 23 and a roller pin embedded on the main ring body, and the roller pin can rotate around its central axis. Thus, the needle rollers can be driven to rotate about their own axes when the door is manually pushed, while the pivot shaft 23 needs to overcome rolling friction to rotate.

Optionally, the retainer 24 further comprises at least one support block, by which the resilient member 241 abuts against the needle rollers. Therefore, the rolling of the needle roller is smoother when the door is opened manually.

In the embodiment shown in fig. 2, the at least one support block includes a first support block 243 and a second support block 244, a first end of the first support block 243 is wedge-fitted with an end of the second support block 244 facing away from the needle roller, and a second end of the first support block 243 is abutted against the elastic member 241.

Specifically, the lower end of the first support block 243 abuts against the elastic member 241, the upper end of the first support block 243 has a first inclined surface inclined from top to bottom to right, the right end of the second support block 244 is rotatably fitted with the fixing ring 242, the left end of the second support block 244 has a second inclined surface inclined from top to bottom to right, the first inclined surface is attached to the second inclined surface, and the first support block 243 and the second support block 244 are arranged vertically.

In this way, the upward elastic restoring force of the elastic member 241 is transmitted to the second supporting block 244 through the first supporting block 243, and finally acts on the fixing ring 242 toward the radial direction of the fixing ring 242, reducing the size of the hinge 20 in the direction perpendicular to the pivot shaft 23, making the structure of the hinge 20 more compact.

In order to facilitate the installation of each supporting block in first hinge 21, the following design is adopted: the elastic element 241 is a compression spring, the second end of the second supporting block 244 has a positioning boss 244a, the first hinge 21 includes a housing 211 and a cover 212, the housing 211 has a first open mouth, the cover 212 covers the first open mouth, the elastic element 241 is sleeved on the positioning boss 244a, and two ends of the elastic element 241 respectively abut against the second end of the first supporting block 243 and the cover 212.

The housing 211 may include a first sheet 211a, a first housing 211b and a second housing 211c connected to the first sheet 211a, the first housing 211b and the second housing 211c generally form an L-shape, the elastic member 241 and the first support block 243 are located in a first receiving cavity defined by the first sheet 211a and the first housing 211b, a first open opening is formed in the first housing 211b, and the second support block 244, the fixed ring 242, and a portion of the pivot shaft 23 are located in the receiving cavity defined by the second housing 211 c. Specifically, the first leaf 211a may be coupled to the vehicle body by a bolt 26, and the second leaf 221 may be coupled to the door by a bolt 26.

In some embodiments, the first flap 211a includes a main panel body 211d and a cover panel body 211e, the main panel body 211d having a mounting opening opposite the second support block 244, and the cover panel body 211e being removably coupled to the main panel body 211d within the mounting opening. Thus, the provision of the cover plate body 211e facilitates the installation of the first support block 243, the second support block 244, the holder 24, and the like in the first accommodation chamber more easily.

Further, referring to fig. 2, the pivot shaft 23 has a limit flange, the housing 211 of the first hinge 21 has a second open opening, the retainer 24 is sleeved on the pivot shaft 23 inside and outside the first housing 211, and the limit flange blocks the second open opening at the outside of the second open opening. Therefore, the limiting flange and the fixing ring 242 can limit the pivot shaft 23 together, and axial movement of the pivot shaft 23 is reduced.

In order to facilitate maintenance and installation of the pivot shaft 23, the pivot shaft 23 is detachably connected with the second hinge 22, specifically, the second hinge 22 comprises a second leaf 221 and a connecting plate 222 vertically fixed on the second leaf 221, the limiting flange is clamped between the connecting plate 222 and the shell 211 of the first hinge 21, and a part of the first pivot shaft 23 extends into the connecting plate 222 and is tightly connected with the connecting plate 222 through a bolt 26.

In some embodiments, the transmission assembly 12 includes a plurality of speed reducers and a final drive mechanism connected to the speed reducers, and the clutches 13 are disposed between adjacent speed reducers. It should be noted that the final transmission mechanism is a mechanism for transmitting power finally to the transmission assembly 12, that is, when the motor 11 is not disabled, the power of the motor 11 is transmitted to the hinge 20 through the plurality of speed reducers and the final transmission mechanism in sequence, so as to achieve the electric door opening.

Alternatively, the speed reducer is a spur gear speed reducer 121 or a bevel gear speed reducer 122, and the final-stage transmission mechanism is any one of a belt transmission mechanism 123, a screw-nut transmission mechanism, a rack-and-pinion transmission mechanism, and a link mechanism. Therefore, the final transmission mechanism can realize remote power transmission, and is convenient for the arrangement of the vehicle door opening and closing device on the vehicle door.

Referring to fig. 1 and 3, the transmission assembly 12 includes a spur gear reducer 121, a bevel gear reducer 122, and a belt transmission mechanism 123, which are connected in sequence, the spur gear reducer 121 is connected to a motor shaft of the motor 11, the spur gear reducer 121 is connected to the bevel gear reducer 122 through a clutch 13, the bevel gear reducer 122 includes a driving bevel gear 122a and a driven bevel gear 122b, the belt transmission mechanism 123 includes a driving pulley 123a, a driven pulley 123b, and a transmission belt, the driven bevel gear 122b is coaxially fixed to the driving pulley 123a, and the driven pulley 123b is coaxially fixed to the pivot shaft 23 through a sleeve 25.

Thus, when the control clutch 13 is switched to the engaged state, the power of the motor 11 can be transmitted in sequence through the spur gear reducer 121, the bevel gear reducer 122, the clutch 13, the belt transmission mechanism 123, and the hinge 20, and the electric opening and closing of the vehicle door can be controlled in an electric control manner; when the control clutch 13 is switched to the off state, the power transmission of the motor 11 to the belt transmission mechanism 123 is blocked, so that the hinge 20 is not driven by the motor 11 any more, and the door can be opened and closed only manually.

In addition, the angle between the connecting line of the gear of the synchronous belt 123c and the rotating shaft of the motor 11 is controlled to ensure that the hinge 20 and the gear of the synchronous belt 123c do not interfere with the vehicle door or the door post when the door is installed.

As shown in fig. 4 and 5, the clutch 13 is a dog clutch 13, the clutch 13 includes a fixed clutch pawl 131, a movable clutch pawl 132 and a clutch switching member 133, the fixed clutch pawl 131 is connected to the first stage transmission member of the transmission assembly 12, the movable clutch pawl 132 is slidably sleeved on the output shaft 121a of the spur gear reducer 121, and the clutch switching member 133 is connected to the movable clutch pawl 132 to drive the movable clutch pawl 132 to engage with or disengage from the fixed clutch pawl 131.

The movable clutch claw 132 is in sliding fit with the output shaft 121a through a sliding key 134, shaft retaining rings are arranged at two ends of the sliding key 134 to limit the movement track of the clutch switching member 13, and the clutch switching member 133 is used for driving the movable clutch claw 132 to slide towards or away from the fixed clutch claw 131 on the output shaft 121 a.

In this way, the forward rotation and the reverse rotation of the motor shaft, that is, the door opening and closing operation, are realized by controlling the operation of the three-phase ac motor 11. The motor 11 is connected to a reducer to transmit motion to the clutch 13. The fixed clutch pawls 131 of the dog clutch 13 (dog clutch 13) are welded to or fixed to the drive bevel gear 122a by pins, are in clearance fit with the output shaft 121a of the reduction gear, and are rotatable on the shaft. The sliding clutch claw 132 is fixed relatively to the output shaft 121a of the reducer through a shaft end retainer ring and a sliding key 134, and meanwhile, the sliding key 134 can slide on the output shaft 121a within a certain range to ensure the clutch.

Further, the clutch switching member 133 is a link assembly, and the clutch switching member 133 includes: the support seat 133a and the control arm 133b are hinged to the support seat 133a, the control arm 133b is substantially L-shaped, one end of the control arm 133b is suitable for pushing the clutch pawl 132, and the middle of the control arm 133b is hinged to the support seat 133 a. In other words, the control arm 133b has a lever 135, the lever 135 can push the sliding key 134 to slide under the guiding action of the sliding slot m, and the control arm 133b is fixed to the door through the support seat 133 a. Bevel gears in the bevel gear reducer 122 are engaged with each other to convert the transverse rotation into the longitudinal rotation, and the output shaft 121a drives the synchronous belt 123c to rotate through gears, further driving the rotation of the pivot shaft 23 of the hinge 20.

It is understood that the clutch switching member 133 may be designed to: the drive clutch 13 is disconnected while the motor 11 is de-energized. For example, the control arm 133b of the clutch switching member 133 can cooperate with the electromagnet and the spring to push the movable clutch pawl 132 to move away from the fixed clutch pawl 131 under the elastic force of the spring when the motor 11 is powered off, so as to disengage from the fixed clutch pawl, so that the clutch 13 can be automatically switched to the off state when the motor 11 fails. When the motor 11 works normally, the electromagnet can overcome the elastic force of the spring to make the clutch switching piece 133 normally push the movable clutch claw 132 to be locked with the fixed clutch claw 131, so that the clutch 13 is in an engaged state.

Of course, the clutch switching member 133 is not limited to the above-described structure capable of being electrically controlled, and the movement of the clutch switching member 133 may be performed by a manual operation.

In conclusion, the vehicle door opening and closing device provided by the embodiment of the invention has the advantages that the required space is relatively small, the vehicle door can be automatically opened and closed only by adding the device, the vehicle body is slightly changed, the compatibility is good, and the cost is saved. In general, when the motor 11 fails, the electric vehicle door can open automatically under the condition of a slope or uneven vehicle body, and the limit function is lost. Or the passenger pushes and pulls the door without feeling the moment (feel) transmitted by the door. In the invention, under the failure mode of the motor 11, the opening and closing of the vehicle door still has the torque and limit requirements of the hinge 20.

A door assembly according to an embodiment of the second aspect of the invention includes a door and the door opening and closing device of the above-described embodiment.

According to the vehicle door assembly provided by the embodiment of the invention, the vehicle door can be stopped at any proper opening position in the electric mode, and meanwhile, the vehicle door can be opened in a manual mode when the electric opening mode fails, and the vehicle door assembly has better door opening hand feeling and better door opening experience.

Specifically, the door opening and closing device may be sealed in the housing 211 at a proper position in the door cavity to make the appearance of the door assembly more beautiful.

According to a third aspect embodiment of the invention, a vehicle includes the door assembly of the above embodiment. When the vehicle door needs to be opened or closed at a certain angle under special conditions, the vehicle door can stay at a proper position expected by a vehicle owner instead of a fixed first-gear position and a fixed second-gear position, and the vehicle door can still be opened and closed smoothly without being locked only by disconnecting the clutch 13 under the condition that the motor 11 fails.

Further, the vehicle further comprises a controller and a speed sensor, wherein the speed sensor is used for detecting the rotating speed of a motor shaft of the motor 11, and the controller is electrically connected with the speed sensor, the motor 11 and the clutch 13 so as to control the clutch 13 to be switched to a separation state and control the motor 11 to stop when the rotating speed detected by the speed sensor is not within a preset threshold range.

Thus, considering the failure of the motor 11 while ensuring the feasibility, the control arm 133b can be controlled independently to force the clutch 13 to be separated, so that the vehicle door can be pushed and pulled manually without being stuck, and meanwhile, the operation of the motor 11 can be controlled to control the opening and closing of any position of the vehicle door, and the vehicle door can be ensured not to be opened automatically and at any opening angle on a slope or an unstable road. Considering that the car owner or passenger can push or pull the car door automatically sometimes, a mark can be arranged on the rotating shaft of the motor 11, an electronic element (such as a speed sensor) is used for monitoring the rotating speed of the motor shaft, when the rotating speed is zero or is smaller than a set value or a set range, an obstacle can be judged to block the car door, the motor 11 stops, the control arm 133b presses down to disconnect the clutch, when the rotating speed is higher than the set value or the set range, the car door can be judged to be pushed or pulled manually, the power of the motor 11 is cut off, the control arm 133b presses down simultaneously, and the clutch 13 is.

Therefore, when a car owner presses the control button, the car door can be controlled to be opened or closed, and when the car door is pushed or pulled by artificial force, the clutch 13 can be automatically disconnected, so that the motor 11 is protected.

In the description of the present invention, it is to be understood that the terms "center", "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, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, but do not indicate or imply that the structures or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be considered as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vehicle door opening/closing device, comprising:

an electric drive component comprising a motor, a transmission assembly, and a clutch;

the hinge, the transmission assembly with the hinge is connected in order to drive the hinge open arbitrary angle, the clutch is connected between motor and the transmission assembly or is set up in the transmission assembly or sets up between hinge and the transmission assembly, when the clutch is in the disconnect-type state, the part that is used for with the electric drive part on the hinge is kept and is restricted at present position.

2. The door opening and closing device according to claim 1, wherein the hinge includes:

a first hinge adapted to connect with a vehicle body;

a second hinge adapted to connect with a vehicle door;

the pivot shaft is connected to the second hinge and is connected with a power output part of the electric driving part; and

a retainer acting on at least one of the pivot shaft and the second hinge to prevent rotation of the second hinge relative to the first hinge.

3. The door opening/closing device according to claim 2, wherein the holder is provided in the first hinge, the pivot shaft passes through the first hinge to be fixed to the second hinge, and the holder is adapted to the pivot shaft to apply a holding torque to the pivot shaft.

4. The door opening and closing device according to claim 2, wherein the holder includes an elastic member, a fixing ring, the elastic member directly or indirectly acts on the fixing ring, and the fixing ring is sheathed and fixedly connected to the pivot shaft.

5. The door opening and closing device according to claim 4, wherein the fixing ring includes a main ring body fitted over the pivot shaft and a needle roller fitted over the main ring body, the needle roller being rotatable about a central axis thereof.

6. The door opening and closing device according to claim 4, wherein the holder further includes at least one support block, and the elastic member is stopped against the needle roller by the at least one support block.

7. The door opening and closing device according to claim 6, wherein the at least one support block includes a first support block and a second support block, a first end of the first support block is wedge-fitted to an end of the second support block facing away from the needle roller, and a second end of the first support block abuts against the elastic member.

8. The door opening/closing device according to claim 7, wherein the elastic member is a compression spring, the second end of the second support block has a positioning boss, the first hinge includes a housing and a cover, the housing has a first open mouth, the cover covers the first open mouth, the elastic member is sleeved on the positioning boss, and two ends of the elastic member respectively abut against the second end of the first support block and the cover.

9. The door opening and closing device according to claim 7, wherein the housing includes a first leaf, a first case and a second case connected to the first leaf, the first case and the second case are substantially formed in an L-shape, the elastic member and the first support block are located in a first accommodation chamber defined by the first leaf and the first case, the first open opening is formed in the first case, and the second support block, the fixing ring, and a part of the pivot shaft are located in a second accommodation chamber defined by the second case.

10. The door opening and closing device according to claim 8, wherein the first leaf includes a main plate body having a mounting opening facing the second support block and a cover plate body detachably connected to the main plate body in the mounting opening.

11. The door opening/closing device according to claim 8, wherein the pivot shaft has a stopper flange, the housing of the first hinge has a second open opening, the holder is fitted around the pivot shaft in the first housing, and the stopper flange blocks the second open opening at an outer side of the second open opening.

12. The door opening and closing device according to claim 8, wherein the second hinge includes a second leaf and a connecting plate vertically fixed to the second leaf, the stopper flange is sandwiched between the connecting plate and a housing of the first hinge, and a part of the first pivot shaft extends into the connecting plate and is fastened to the connecting plate by a bolt.

13. The door opening and closing device according to any one of claims 1 to 12, wherein the transmission assembly includes a plurality of speed reducers and a final transmission mechanism connected to the speed reducers, and the clutch is disposed between adjacent speed reducers.

14. The door opening and closing device according to claim 13, wherein the speed reducer is a spur gear speed reducer or a bevel gear speed reducer, and the final transmission mechanism is any one of a belt transmission mechanism, a lead screw nut transmission mechanism, a rack and pinion transmission mechanism, and a link mechanism.

15. The door opening/closing device according to claim 14, wherein the transmission assembly includes a spur gear reducer, a bevel gear reducer, and a belt transmission mechanism, which are connected in sequence, the spur gear reducer is connected to a motor shaft of the motor, the spur gear reducer is connected to the bevel gear reducer through the clutch, the bevel gear reducer includes a drive bevel gear and a driven bevel gear, the belt transmission mechanism includes a drive pulley, a driven pulley, and a transmission belt, the driven bevel gear is coaxially fixed to the drive pulley, and the driven pulley is coaxially fixed to the pivot shaft through a sleeve.

16. The door opening and closing apparatus according to claim 14, wherein the clutch is a dog clutch, the clutch includes a fixed clutch dog connected to the primary transmission member of the transmission assembly, a movable clutch dog slidably fitted over the output shaft of the spur gear reducer, and a clutch switching member connected to the movable clutch dog so as to drive the movable clutch dog 132 to be engaged with or disengaged from the fixed clutch dog.

17. The door opening/closing device according to claim 16, wherein the movable engaging/disengaging pawl is slidably engaged with the output shaft via a sliding key, and the engaging/disengaging switching member is configured to drive the movable engaging/disengaging pawl to slide on the output shaft toward or away from the fixed engaging/disengaging pawl.

18. The door opening and closing device according to claim 17, wherein the clutch switching member is a link assembly, and the clutch switching member includes: the clutch mechanism comprises a supporting seat and a control arm hinged to the supporting seat, wherein the control arm is generally L-shaped, one end of the control arm is suitable for pushing the movable clutch claw, and the middle part of the control arm is hinged to the supporting seat.

19. A vehicle door assembly comprising a vehicle door and the door opening/closing device according to any one of claims 1 to 18.

20. A vehicle comprising the door assembly of claim 19.

21. The vehicle of claim 20, further comprising a controller, a speed sensor for detecting a rotational speed of a motor shaft of the motor, the controller being electrically connected to the speed sensor, the motor, and the clutch to control the clutch to switch to the disengaged state and the motor to stop when the rotational speed detected by the speed sensor is not within a preset threshold range.