WO2019154233A1 - 用于调节显示终端的执行机构和车辆 - Google Patents

用于调节显示终端的执行机构和车辆 Download PDF

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Publication number
WO2019154233A1
WO2019154233A1 PCT/CN2019/074018 CN2019074018W WO2019154233A1 WO 2019154233 A1 WO2019154233 A1 WO 2019154233A1 CN 2019074018 W CN2019074018 W CN 2019074018W WO 2019154233 A1 WO2019154233 A1 WO 2019154233A1
Authority
WO
WIPO (PCT)
Prior art keywords
engaging portion
locking
display terminal
actuator
casing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/074018
Other languages
English (en)
French (fr)
Inventor
崔超
张晓茹
白胜
王晓文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BYD Co Ltd
Original Assignee
BYD Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BYD Co Ltd filed Critical BYD Co Ltd
Publication of WO2019154233A1 publication Critical patent/WO2019154233A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • B60R11/0229Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for displays, e.g. cathodic tubes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00Pivots; Pivotal connections
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00Pivots; Pivotal connections
    • F16C11/04Pivotal connections
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H1/00Toothed gearings for conveying rotary motion
    • F16H1/02Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/24Toothed gearings for conveying rotary motion without gears having orbital motion involving gears essentially having intermeshing elements other than involute or cycloidal teeth
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/04Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting

Definitions

  • the present disclosure belongs to the field of display terminal adjustment technologies, and in particular, to an actuator for adjusting a display terminal and a vehicle having the same.
  • the present disclosure is intended to address at least one of the technical problems existing in the prior art. To this end, the present disclosure proposes an actuator for adjusting a display terminal, the actuator having a manual and automatic adjustment function and the two adjustment modes not interfering with each other.
  • the present disclosure also proposes a vehicle having the above-described actuator.
  • the actuator includes a rotating disk for mounting a display terminal; a clutch unit, a first engaging portion of the clutch unit, and the rotating a disk connection, the second joint portion of the clutch unit is engaged with the first joint portion and has a plurality of joint positions; a drive unit, an output end of the drive unit is coupled to the second joint portion;
  • the mounting shaft is pivotally coupled to the rotating disk, and in an axially upper limit position, the mounting shaft extends through the clutch unit, the driving unit; wherein the first engaging portion and the second engaging portion are often mutually Locking, the mounting unit is configured to be manually rotatable to cause the first engagement portion to be rotatably switchable between the plurality of engagement positions relative to the second engagement portion.
  • an actuator for adjusting a display terminal is coupled to the automatic rotation display terminal as a whole by a clutch unit, and the two screen cutting modes do not interfere with each other.
  • a vehicle according to an embodiment of the second aspect of the present disclosure includes a display terminal and an actuator according to the present disclosure, the actuator being mounted to a vehicle body, the display terminal being mounted to the mounting unit of the actuator.
  • the vehicle according to the embodiment of the present disclosure has the same advantages as the above-described actuator with respect to the prior art, and details are not described herein again.
  • FIG. 1 is an exploded view of an actuator in accordance with one embodiment of the present invention.
  • Figure 2 is a side elevational view of the actuator after assembly in accordance with one embodiment of the present invention.
  • Figure 3 is a cross-sectional view taken along line A-A of Figure 2;
  • FIG. 4 is a schematic structural view showing integration of a second joint portion and a secondary driven spur gear according to an embodiment of the present invention
  • FIG. 5 is a schematic structural view of a first joint portion according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural view of a clutch unit according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural view of a clutch unit according to another embodiment of the present invention.
  • Figure 8 is a schematic structural view of a rotating disk according to an embodiment of the present invention.
  • Figure 9 is a cross-sectional view taken along line B-B of Figure 8.
  • Figure 10 is a partial schematic view showing the entire actuator of the mounting shaft stringing in accordance with one embodiment of the present invention.
  • Figure 11 is a side elevational view of the drive unit assembled in accordance with one embodiment of the present invention.
  • Figure 12 is an exploded view of a drive unit in accordance with one embodiment of the present invention.
  • Figure 13 is an exploded view of a drive unit in accordance with another embodiment of the present invention.
  • FIG. 14 is a schematic structural diagram of a driving unit according to still another embodiment of the present invention.
  • Figure 15 is an exploded view of a drive unit in accordance with still another embodiment of the present invention.
  • Figure 16 shows a schematic view of the angle ⁇
  • Figure 17 shows a schematic view of the angle ⁇
  • Figure 18 is an exploded view of a clutch unit in accordance with one embodiment of the present invention.
  • Figure 19 is an exploded view of the drive unit (showing a radial retention mechanism) in accordance with one embodiment of the present invention.
  • 20 is a schematic structural view of a vehicle according to an embodiment of the present disclosure.
  • first joint portion 21 a first joint portion 21, a second joint portion 23, an oil groove 24, a joint disk 28, a joint sleeve 26,
  • Elastic member 40 elastic member 40, elastic member end face bearing 41, axial limiting member 42,
  • the terminal 200 is displayed.
  • connection In the description of the present disclosure, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • Connected, or integrally connected can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • the specific meanings of the above terms in the present disclosure can be understood in the specific circumstances by those skilled in the art.
  • An actuator 100 for adjusting the display terminal 200 for rotating the display terminal 200 such as switching the display terminal 200 between landscape or portrait, according to an embodiment of the present disclosure, will be described below with reference to FIGS.
  • the display terminal 200 may be rotated to other angles, and the display terminal 200 may be a touch screen.
  • an actuator 100 for adjusting a display terminal 200 includes a mounting unit, a clutch unit, and a driving unit 30.
  • the mounting unit is used to mount the display terminal 200, and the display terminal 200 can be fixedly mounted to the mounting unit, or the display terminal 200 and the mounting unit can be detachably connected.
  • the mounting unit may include a mounting bracket 11, a rotating disk 13, and a mounting shaft 15.
  • the mounting bracket 11 is used to mount the display terminal 200, and the mounting bracket 11 and the display terminal 200 (with corresponding interface structures) are fixed by bolts, or the mounting bracket 11 can be integrated on the back surface of the display terminal 200.
  • the mounting bracket 11 is connected to the rotating disc 13, and the mounting bracket 11 and the rotating disc 13 are fixed by a snap and two screws, and the mounting bracket 11 is detachably mounted to the rotating disc 13.
  • the rotary disk 13 has a first recess 13a and a second recess 13b, and the first recess 13a and the second recess 13b are respectively located at both ends of the rotary disk 13.
  • One end of the rotating disc 13 facing the first engaging portion 21 of the clutch unit has a first recess 13a, and the first engaging portion 21 is at least partially located in the first recess 13a to shorten the axial distance of the entire actuator 100, in some implementations.
  • the entire first joint portion 21 is located in the first groove 13a
  • the second joint portion 23 of the clutch unit is at least partially located in the first groove 13a
  • the entire second The joint portion 23 is located within the first recess 13a to further shorten the axial distance of the entire actuator 100, the overall axial length of the actuator 100 is shortened, the arrangement is more compact and the connection is tighter.
  • the display terminal 200 is connected to the mounting unit 10 via a connection bracket 11, and the second recess 13b is adapted to receive and connect the bracket 11.
  • the connecting bracket 11 can be connected to the rotating disc 13 by at least one of snapping and bolting, etc.
  • the connecting bracket 11 can be formed in a ring shape and includes a plurality of claw-shaped connecting members arranged in an annular shape. A plurality of claw-shaped connectors can be inserted into and inserted into the second recess 13b.
  • the connecting bracket 11 intrudes into the rotating disk 13, but also a plurality of claw-shaped connecting members defining a cavity 11a, the cavity 11a being located behind the display terminal, at least part of the rotating disk 13 extending into the cavity 11a, such that The space of the mounting unit itself behind the display terminal 200 is rationally utilized, the axial length of the entire actuator 100 is significantly reduced, and the arrangement is more compact and more compact.
  • the rotating disk 13 is dynamically coupled to the first engaging portion 21, and the rotating disk 13 is coupled to the first engaging portion 21 by a spline.
  • the rotating disk 13 is disposed away from the end surface of the display terminal 200.
  • the spline, the end surface of the first engaging portion 21 facing away from the second joint portion 23 is provided with a second spline such that the rotating disc 13 and the first engaging portion 21 are connected by the first spline and the second spline.
  • the rotating disk 13 can also be integrally formed with the first engaging portion 21, which can reduce the number of parts to be assembled and reduce the assembly process.
  • the rotating disk 13 may be in the shape of a disk, and a circular through hole is provided in the middle of the rotating disk 13, that is, the rotating disk 13 is annular.
  • the rotating disk 13 is pivotally connected to the mounting shaft 15, and the rotating disk 13 and the mounting shaft 15 are at the upper axial limit position, and the rotating disk 13 and the mounting shaft 15 are not axially movable relative to each other.
  • the mounting shaft 15 passes through the clutch unit and the drive unit 30.
  • the mounting shaft 15 is used to integrate the respective components, and the mounting shaft 15 does not transmit power.
  • the mounting shaft can be rotated or not rotated.
  • the mounting shaft 15 can be a hollow shaft to reduce weight.
  • the clutch unit is located outside of the housing of the drive unit 30.
  • the clutch unit includes a first joint portion 21 and a second joint portion 23, and the first joint portion 21 of the clutch unit is connected to the mounting unit, and the first joint portion 21 and the mounting unit can be powered.
  • the second engaging portion 23 of the clutch unit is engaged with the first engaging portion 21, and when the second engaging portion 23 is engaged with the first engaging portion 21, the clutch unit can transmit torque, and the second engaging portion 23 and the first engaging portion 21 have A plurality of engagement positions, for example, a plurality of engagement positions are formed on the end faces of the first engagement portion 21 and the second engagement portion 23 opposite to each other.
  • the output of the drive unit 30 is coupled to the second joint 23, which is located outside the housing of the drive unit 30.
  • the clutch unit includes a first engaging portion 21 and a second engaging portion 23 that are oppositely disposed with the end faces, and the first engaging portion 21 and the second engaging portion 23 have a plurality of locks with respect to one of the two end faces facing each other
  • the stop groove 25, the other has at least one locking projection 27, and the actuator 100 may further comprise means for providing an axial preloading force, each locking projection being adapted to be under the action of the axial preloading force
  • the at least two locking grooves 25 are engaged such that the second engaging portion 23 and the first engaging portion 21 are at least adapted to be engaged at two engaging positions distributed in the circumferential direction, and when the engaging position is changed, the second engaging portion 23 and the driving unit 30 are In the axial direction, the first engaging portion 21 is moved in the axial direction away from the second engaging portion 23, and the first engaging portion 21 is connected to the mounting unit, and the output end of the driving unit 30 and the second engaging portion 23 are connected. connection.
  • the drive unit 30 can be an electric drive, a hydraulic drive, a pneumatic or the like.
  • the clutch unit may be located outside the housing of the drive unit 30, such that when the clutch unit is assembled, it is not easy to interfere with the various components of the drive unit 30, and it is not necessary to design the housing of the drive unit 30 separately.
  • the installation space of the clutch unit simplifies the design.
  • the actuator 100 since the first engaging portion 21 and the second engaging portion 23 of the clutch unit are relatively rotated in the manual mode, if a part of the clutch unit is provided in the housing of the driving unit 30, the actuator 100 operates. Problems such as seizure may occur during the process.
  • the clutch unit is at least partially located within the mounting unit.
  • at least a portion of the first engaging portion 21 or the second engaging portion 23 as described in the above embodiment is located in the rotating disk 13, which can significantly reduce the axial length of the actuator 100 as a whole, and the arrangement is more compact and more compact.
  • the first engaging portion 21 and the second engaging portion 23 are often locked to each other, and the mutual locking means that the second engaging portion 23 and the first engaging portion 21 are locked to each other in a normal state, and the mutual locking means that when applied to the first When the external force between the second engaging portion 23 and the first engaging portion 21 is smaller than the pre-tightening force for locking the second engaging portion 23 and the first engaging portion 21, the second engaging portion 23 and the first engaging portion 21 remain locked.
  • the mounting unit is configured to be manually rotatable to cause the first engagement portion 21 to be rotatably switchable between the plurality of engagement positions relative to the second engagement portion 23.
  • the second engaging portion 23 is engaged with the first engaging portion 21, and it can be understood that, in a normal state, the first engaging portion 21 and the second engaging portion 23 are engaged with each other under the action of the axial preloading force. Torque can be transmitted, and the driving force is transmitted along the driving unit 30 - the second engaging portion 23 - the first engaging portion 21 - the rotating disk 13 - the mounting bracket 11 - the display terminal 200, thereby rotating the display terminal 200 to realize the rotation of the display terminal 200 or Switch between horizontal and vertical screens.
  • the first engaging portion 21 and the second engaging portion 23 form a circumferential static friction force under the action of the axial pre-tightening force, and the circumferential static frictional force forms the opening force of the relative rotation of the first engaging portion 21 and the second engaging portion 23.
  • the first engaging portion 21 and the second engaging portion 23 are relatively rotated to change the engaging position; when the torque received by the first engaging portion 21 is less than the opening force, the first The joint portion 21 and the second joint portion 23 are kept engaged with each other to transmit torque.
  • the second engaging portion 23 is relatively rotated with the first engaging portion 21 to change the engaging position.
  • a torque for rotating the display terminal 200 is manually applied, and the torque is transmitted to the first engaging portion 21 through the mounting unit. Since the driving unit 30 is locked when it is not in operation, the driving unit 30 is fixedly connected to the second engaging portion 23 when When the torque is not greater than the opening force, the first engaging portion 21 and the second engaging portion 23 remain engaged, and the display terminal 200 does not rotate; when the torque is greater than the opening force, the first engaging portion 21 and the second engaging portion 23 occur. Relative rotation, from the previous engagement position to the other engagement position, when the first engagement portion 21 is rotated relative to the second engagement portion 23 from the first engagement position to the second engagement position, manual rotation of the display terminal 200 is achieved. .
  • the actuator 100 for adjusting the display terminal 200 can realize manual screen cutting of the display terminal 200 and automatic screen cutting, that is, the manual rotation mode of the display terminal 200 can be automatically performed by the clutch unit.
  • the rotation modes are coupled together, and the two screen cutting modes do not interfere with each other.
  • the mounting shaft 15 has a flange 16 that is folded radially outwardly, the flange 16 being annular, the flange 16 being connectable to the end of the mounting shaft 15, one of the flanges 16
  • the end face and the rotating disk 13 are at the upper axial limit, for example, the flange 16 of the mounting shaft 15 can be pressed against the rotating disk 13 by the mounting shaft bearing 17.
  • a stepped surface is provided between the end surface of the rotating disk 13 and the inner peripheral wall, and the one side of the mounting shaft bearing 17 has an L-shaped cross section, that is, the shape of the mounting shaft bearing 17 and the mounting shaft 15 are provided.
  • the mounting shaft bearing 17 is sleeved outside the mounting shaft 15, and the two end faces of the folded side of the mounting shaft bearing 17 respectively press against the stepped surface and the flange 16.
  • the mounting shaft 15 is radially matched with the manual clutch unit and the drive unit to reduce the running friction.
  • the clutch unit of the embodiment of the present disclosure may serve as a part of the actuator 100 for adjusting the display terminal 200 for outputting the power output from the drive unit 30 of the actuator 100 to the display terminal 200, thereby coupling the manual function with the automatic drive function. .
  • the clutch unit includes a first engaging portion 21 and a second engaging portion 23, and the end faces of the first engaging portion 21 and the second engaging portion 23 are oppositely disposed. And one of the two end faces of the first engaging portion 21 and the second engaging portion 23 facing each other has a plurality of locking grooves 25, and the first engaging portion 21 and the second engaging portion 23 face the other of the two end faces of each other One has at least one locking projection 27.
  • the end surface of the first joint portion 21 is provided with a locking groove 25, and the end surface of the second joint portion 23 is provided with a locking protrusion 27; or the end surface of the second joint portion 23 is provided with a locking groove 25, the first joint portion
  • the end face of 21 is provided with a locking projection 27.
  • Each of the locking projections 27 is adapted to engage with at least two locking grooves 25 such that the second engaging portion 23 and the first engaging portion 21 are at least adapted to engage at two engaging positions in the circumferential direction.
  • first joint portion 21 and the second joint portion 23 may both be annular, and one end surface of the first joint portion 21 and one end surface of the second joint portion 23 are opposed to each other.
  • An end face of one of the first engaging portion 21 and the second engaging portion 23 is provided with an oil groove 24 for storing lubricating oil to reduce friction, such as a lock provided in the first engaging portion 21 and the second engaging portion 23
  • One end surface of the retaining groove 25 is provided with an oil groove 24, and a plurality of oil grooves 24 may be provided, and a plurality of oil grooves 24 are disposed between the adjacent two locking grooves 25.
  • One of the two end faces of the first engaging portion 21 and the second engaging portion 23 facing each other has a plurality of locking grooves 25, and the other has at least one locking projection 27, at least a portion of the locking projection 27 extending into the lock
  • the groove 25 is formed and the side surface of the locking projection 27 is pressed against the side wall of the locking groove 25, the locking projection 27 is engaged with the locking groove 25, so that the first engaging portion 21 and the second engaging portion 23 can be realized.
  • the end surface of the first joint portion 21 is provided with a locking groove 25, and the end surface of the second joint portion 23 is provided with a locking protrusion 27; or the end surface of the second joint portion 23 is provided with a locking groove 25, the first joint portion
  • the end face of 21 is provided with a locking projection 27.
  • only the end surface of the first joint portion 21 is provided with a lock projection 27, and the end surface of the second joint portion 23 is provided with a lock groove 25 as an example for further explanation.
  • the first engaging portion 21 may be splined or integrally formed with the rotating disk 13 as described in the above embodiment, and in other embodiments, the first engaging portion 21 is configured to rotate the disk 13 toward the second engaging portion 23
  • the end face, the locking projection 27 is formed at the end face, that is, the disk surface of the first engaging portion 21 is omitted, so that the entire actuator 100 is light in weight.
  • the locking projection 27 may be integrally formed on the end surface of the rotating disk 13 toward the second engaging portion 23, or the locking projection 27 may be detachably coupled to the rotating disk 13, so that the structure of the rotating disk 13 is simpler and easier to mold.
  • the plurality of locking grooves 25 are evenly spaced apart along the circumferential direction of the second engaging portion 23, and the plurality of locking projections 27 are evenly spaced apart along the circumferential direction of the first engaging portion 21, the number and locking of the locking grooves 25.
  • the number of the projections 27 is the same, for example, the locking groove 25 and the locking projection 27 are at least three, for example four. In the embodiment in which the locking groove 25 and the locking projection 27 are all four, the angle between the center lines of the adjacent two locking grooves 25 is 90° regardless of the machining error, in the initial state.
  • the plurality of locking projections 27 are engaged with the plurality of locking grooves 25 in one-to-one correspondence, and when the first engaging portion 21 is rotated relative to the second engaging portion 23 to a certain locking projection 27 and another adjacent locking When the slot 25 is engaged, the rotation of the display terminal can be achieved.
  • Each locking projection 27 is adapted to engage with at least two locking slots 25 such that the second engagement portion 23 and the first engagement portion 21 are at least adapted to engage in two engaged positions.
  • the locking projection 27 can be engaged with the two locking grooves 25, and the angle between the center lines of the two locking grooves 25 represents the first engaging portion 21 and the second engaging portion. An angle at which the portion 23 is relatively rotated.
  • the locking groove 25 includes a plurality of groups, each of which includes a plurality of locking grooves 25, and different sets of locking grooves 25 are alternately arranged in the circumferential direction, in which the first engaging portion 21 and the second engaging portion 23 are When one engaging position is engaged, the plurality of locking projections 27 are in one-to-one correspondence with the plurality of locking grooves 25 of one of the groups, and when the first engaging portion 21 and the second engaging portion 23 are rotated to the other engaging position, the plurality of locks The stop projections 27 are in one-to-one correspondence with the plurality of lock grooves 25 of the other set, wherein the center lines of the two lock grooves 25 corresponding to each other in the lock grooves 25 of the two sets are at an angle of 90°.
  • the number of the locking slots 25 can be in one-to-one correspondence with the number of positions of the display terminal 200.
  • the locking slots 25 are two groups, and the locking slots 25 include two groups.
  • Each set includes three locking grooves 25 which are evenly spaced apart in the circumferential direction.
  • the two sets of the locking grooves 25 are staggered in the circumferential direction.
  • each of the locking grooves 25 of the first group has a first side on each side. Two sets of locking grooves 25, so that each locking projection 27 only needs to be inserted into the other locking groove 25 from one locking groove 25 during each rotation, and does not fall into the non-target lock during the rotation.
  • the groove 25, the center line of the locking groove 25 of the first group and the center line of one of the two locking grooves 25 of the second group are 90°, and the center line of the locking groove 25 of the first group
  • the angle between the center line of the other of the two locking grooves 25 of the second group is 30°
  • the locking protrusion 27 includes three, and the three locking protrusions 27 are evenly spaced apart in the circumferential direction.
  • the locking groove 25 and the locking projection 27 each have an arcuate cross section, and the root width of the locking projection 27 is larger than the width of the top end of the locking projection 27, and the locking groove 25 is open.
  • the width of the end is larger than the width of the bottom of the locking groove 25, and the width of the locking projection 27 gradually becomes smaller from the root to the tip.
  • the first engaging portion 21 and the second engaging portion 23 can be disengaged by the relative sliding of the curved surface when subjected to a large torque, and the locking is less likely to occur. happening. After the lock groove 25 and the lock projection 27 are disengaged, the arcuate lock projection 27 slides along the end surface of the second joint portion 23, and the friction between the first joint portion 21 and the second joint portion 23 becomes small. It is easy to slide to the next joint position quickly and it is not easy to get stuck.
  • the locking groove 25 and the locking projection 27 are both fan-shaped concentric with the first engaging portion 21 or the second engaging portion 23 as viewed in the axial direction of the clutch unit, and the locking groove Both the locking projections 27 and the locking projections 27 have a fan-shaped cross section concentric with the first engaging portion 21 or the second engaging portion 23. That is, the width of the lock groove 25 gradually becomes larger from the inside toward the outside in the radial direction, and the width of the lock projection 27 gradually becomes larger from the inside toward the outside in the radial direction.
  • the outer end of the locking groove 25 and the outer end of the locking projection 27 are subjected to a large moment, and the lock can be increased by providing the above structure.
  • the outer end of the retaining groove 25 and the force receiving area of the outer end of the locking projection 27 reduce the pressure received by the outer end of the locking groove 25 and the outer end of the locking projection 27, reinforcing the outer end of the locking groove 25 and the lock
  • the strength of the outer end of the projection 27 is prevented from being broken, wherein the outer end refers to the end of the locking groove 25 and the locking projection 27 that faces away from the axis of the first engaging portion 21 or the second engaging portion 23.
  • the width of at least a portion of the locking projection 27 is greater than the width of the open end of the locking groove 25. At least one side of the locking projection 27 abuts against the corresponding side of the locking groove 25 to lock The stop projection 27 engages with the locking groove 25.
  • each of the locking protrusions 27 is engaged with the corresponding locking groove 25, and when there is a certain error between the actual rotation angle of the display terminal 200 and the design angle, each of the locking protrusions 27 and the corresponding locking groove 25 maintains the engagement to prevent the partial locking protrusion 27 from being squirmed with the corresponding locking groove 25, and the virtual occlusion means that the locking protrusion 27 extends into the corresponding locking groove 25 but the locking protrusion 27 and the locking The wall surface of the groove 25 is not pressed.
  • the width of the locking groove 25 gradually decreases from the open end to the bottom, the width of the locking protrusion 27 gradually decreases from the root to the top end, and the width of the open end of the locking groove 25 is smaller than the root of the locking protrusion 27.
  • the width In other words, the central angle of the fan ring at the open end of the lock groove 25 is smaller than the central angle of the fan ring at the root of the lock projection 27 when the first joint portion 21 and the second joint portion 23 are engaged.
  • each locking contour are equal to the two sides of the open end of the locking groove 25, respectively. Compression; due to machining error, for example, the angle between two adjacent locking bosses is not equal to 90°, the width of each locking boss is not equal, and the partial locking boss and the corresponding locking groove 25 may be With one side pressing, at least one side of the locking projection 27 is pressed against the corresponding side of the locking groove 25 to engage the locking projection 27 with the locking groove 25.
  • each of the locking protrusions 27 is engaged with the corresponding locking groove 25, and the actual rotation angle and design of the display terminal 200
  • each of the locking protrusions 27 is engaged with the corresponding locking groove 25 to prevent the partial locking protrusion 27 from being occluded with the corresponding locking groove 25, and the locking convexity on the other hand.
  • a portion of the handle 27 engages with the lock groove 25 to facilitate the sliding of the lock projection 27 out of the lock groove 25 during manual operation.
  • the depth of the locking groove 25 is smaller than the height of the locking projection 27, so that the strength of the second engaging portion 23 is large.
  • the first engaging portion 21 and the second engaging portion 23 may both be annular, one end face of the first engaging portion 21 and One end surface of the second joint portion 23 is opposed to each other.
  • An end face of one of the first engaging portion 21 and the second engaging portion 23 is provided with an oil groove 24 for storing lubricating oil to reduce friction.
  • One of the two end faces of the first engaging portion 21 and the second engaging portion 23 facing each other has a plurality of locking grooves 25, and the other has at least one locking projection 27, at least a portion of the locking projection 27 extending into the lock
  • the groove 25 is formed and the side surface of the locking projection 27 is pressed against the side wall of the locking groove 25, the locking projection 27 is engaged with the locking groove 25, so that the first engaging portion 21 and the second engaging portion 23 can be realized.
  • Each locking projection 27 is adapted to engage with at least two locking slots 25 such that the second engagement portion 23 and the first engagement portion 21 are at least adapted to engage in two engaged positions.
  • the locking protrusion 27 can be engaged with the two locking grooves 25, and the angle between the center lines of the two locking grooves 25 represents the first engaging portion 21 and the second joint. An angle at which the portion 23 is relatively rotated.
  • the end surface of the first joint portion 21 is provided with a locking groove 25, the end surface of the second joint portion 23 is provided with a locking protrusion 27, or the end surface of the second joint portion 23 is provided with a locking groove 25, and the first joint portion
  • the end face of 21 is provided with a locking projection 27.
  • only the end surface of the first joint portion 21 is provided with a lock projection 27, and the end surface of the second joint portion 23 is provided with a lock groove 25 as an example for further explanation.
  • each set includes a plurality of locking grooves 25, and different sets of locking grooves 25 are staggered in the circumferential direction, and the first engaging portion 21 and the second engaging portion 23 are When one of the engaging positions is engaged, the plurality of locking projections 27 are in one-to-one correspondence with the plurality of locking grooves 25 of one of the groups, and when the first engaging portion 21 and the second engaging portion 23 are rotated to the other engaging position, a plurality of The locking projections 27 are in one-to-one correspondence with the plurality of locking grooves 25 of the other group, wherein the angles of the axes of the center lines of the two locking grooves 25 corresponding to each other in the locking grooves 25 of the two groups are 90°.
  • the number of the locking slots 25 can be in one-to-one correspondence with the number of positions of the display terminal 200.
  • the locking slots 25 are two groups, and the locking slots 25 include two groups.
  • Each set includes three locking grooves 25 which are evenly spaced apart in the circumferential direction.
  • the two sets of the locking grooves 25 are staggered in the circumferential direction.
  • each of the locking grooves 25 of the first group has a first side on each side. Two sets of locking grooves 25, so that each locking projection 27 only needs to be inserted into the other locking groove 25 from one locking groove 25 during each rotation, and does not fall into the non-target lock during the rotation.
  • the groove 25, the center line of the locking groove 25 of the first group and the center line of one of the two locking grooves 25 of the second group are 90°, and the center line of the locking groove 25 of the first group
  • the angle between the center line of the other of the two locking grooves 25 of the second group is 30°
  • the locking protrusion 27 includes three, and the three locking protrusions 27 are evenly spaced apart in the circumferential direction.
  • the locking groove 25 and the locking projection 27 each have an arcuate cross section, and the root width of the locking projection 27 is larger than the width of the top end of the locking projection 27, and is locked.
  • the width of the open end of the groove 25 is larger than the width of the bottom of the lock groove 25, and the width of the lock projection 27 gradually becomes smaller from the root to the tip end.
  • the locking groove 25 and the locking projection 27 are clearance-fitted in the circumferential direction, that is, the width of the locking groove 25 in the circumferential direction is greater than the width of the locking projection 27 in the circumferential direction, and the depth of the locking groove 25 is greater than the locking projection 27
  • the height of the open end of the locking groove 25 is greater than the width of the root of the locking protrusion 27, and one side of the locking protrusion 27 is pressed against one side of the locking groove 25 to make the locking protrusion 27 and the locking groove 25 Occlusal.
  • one side wall of the lock groove 25 corresponding to the corresponding side of the plurality of lock projections 27 in the circumferential direction is engaged with the first joint portion 21 and the second joint portion 23.
  • the first engaging portion 21 and the second engaging portion 23 can be disengaged by the relative sliding of the curved surface when subjected to a large torque, and the locking groove 25
  • the lock projection 27 is disengaged, the frictional force between the first joint portion 21 and the second joint portion 23 is reduced, so that it is easy to slide to the next joint position quickly, and it is difficult to be stuck.
  • the lock groove 25 and the lock projection 27 are both fan-shaped concentric with the first joint portion 21 or the second joint portion 23 as viewed in the axial direction of the clutch unit. Both the lock groove 25 and the lock projection 27 have a fan-shaped cross section concentric with the first joint portion 21 or the second joint portion 23. That is, the width of the lock groove 25 gradually becomes larger from the inside toward the outside in the radial direction, and the width of the lock projection 27 gradually becomes larger from the inside toward the outside in the radial direction. It can be understood that when the first joint portion 21 and the second joint portion 23 transmit torque, the moment received by the outer end is large, and by providing the above structure, the strength of the outer end can be enhanced to prevent breakage.
  • the display terminal 200 When the display terminal 200 is manually rotated, in order to ensure rotation to a target angle, for example, the target angle may be 90°, the display terminal 200 switches between the horizontal and vertical screens, and a paired positioning mechanism is provided between the parts fixedly connected to the vehicle body and the rotating parts, such as The housing of the driving unit 30 and the rotating disk 13 are provided with a paired positioning mechanism for rotating the display terminal 200 by a target angle. Two types of positioning mechanisms are described below.
  • the positioning mechanism includes a limit stop 38 and a positioning pin (not shown).
  • the housing of the drive unit 30 is provided with two limit stops 38.
  • the limit stops 38 are spaced apart along the circumferential direction of the housing of the drive unit 30.
  • the angle between the two limit stops 38 is a target angle of rotation, such as 90°, and the rotating disk 13 is provided with a positioning pin for positioning.
  • the pin protrudes toward the housing of the drive unit 30, and the positioning pin is adapted to press against the limit stop 38.
  • the positioning pin presses against a limit stop 38, rotates the display terminal 200, and rotates the disk 13 and the positioning pin
  • the locating pin is pressed together to press against the other limit stop 38, it indicates that the display terminal 200 is rotated into position, and the locking groove 25 and the locking protrusion 27 of the first engaging portion 21 and the second engaging portion 23 are matched to ensure the first One joint portion 21 and the second joint portion 23 are always joined.
  • the positioning mechanism includes a limiting slot 14 and a positioning pin (not shown).
  • the rotating disc 13 is provided with a circular arc-shaped limiting slot 14 for the driving unit 30.
  • the positioning pin is disposed on the housing, and the positioning pin protrudes toward the limiting slot 14.
  • the positioning pin can slide in the limiting slot 14.
  • the arc of the limiting slot 14 is equal to the target rotation angle of the display terminal 200, and the positioning pin is suitable for the pressing limit.
  • the end of the bit groove 14 when the positioning pin is rotated from one end of the limiting groove 14 to the other end means that the display terminal 200 is rotated into position, and the locking groove 25 and the lock of the first engaging portion 21 and the second engaging portion 23 are engaged.
  • the projection 27 can ensure that the first engaging portion 21 and the second engaging portion 23 are always engaged.
  • the actuator 100 further includes an elastic member 40 .
  • the elastic member 40 is sleeved on the outside of the mounting shaft 15 , and one end of the elastic member 40 is pressed against the axial limiting member 42 of the mounting shaft 15 .
  • the other end of the elastic member 40 presses against the casing of the driving unit, so that the driving unit 30, the manual clutch unit, and the rotating disk 13 are sequentially pressed, and the elastic preload of the elastic member 40 is used to make the second engaging portion 23
  • the first engaging portion 21 is engaged, and the elastic member 40 may be a spring.
  • the other end of the elastic member 40 is pressed against the housing of the drive unit 30 by the elastic member end face bearing 41, and the elastic member end face bearing 41 can push the bearing.
  • the first engaging portion 21 In the manual mode, torque is applied to the first engaging portion 21, such as manually rotating the display terminal 200, torque is generated between the first engaging portion 21 and the second engaging portion 23, and when the torque is greater than the opening force, the locking convexity is generated.
  • the elastic member 40 is compressed, and the second engaging portion 23 and the driving unit 30 are axially opposed to each other after the locking projection 27 is disengaged from the locking groove 25, and the elastic member 40 is compressed.
  • An engaging portion 21 moves in the axial direction away from the second engaging portion 23, and the display terminal 200 also moves in the axial direction away from the second engaging portion 23, that is, the display terminal 200 faces rearward (the rear of the vehicle) motion.
  • the elastic member 40 can be sleeved outside the mounting shaft 15, and the mounting shaft 15 is fixed with an axial limiting member 42.
  • the axial limiting member 42 can be a snap ring, and one end of the elastic member 40 abuts the shaft. To the stopper 42, the other end of the elastic member 40 presses the drive unit 30.
  • the axially fixed connection between the axial stop member 42, the mounting shaft 15, and the rotating disk 13 limits the axial length of the system. In this way, a certain positive pressure can be maintained between the components connected in series (the pressure is provided by the compression deformation of the "outer ring" elastic member 40), and the components connected in series include: the rotating disk 13, the clutch unit, and the system is realized. Locking function, here also achieves axial limit between components
  • the other end of the elastic member 40 is pressed against the housing of the drive unit 30 by the elastic member end face bearing 41, and the elastic member end face bearing 41 can push the bearing.
  • the housing of the drive unit 30 does not move, the mounting shaft 15 rotates, and the frictional force between the elastic member 40 and the housing of the drive unit 30 can be remarkably reduced by providing the elastic end face bearing 41.
  • the housing of the driving unit 30 has an axial limiting portion 37g, and the axial limiting portion 37g forms an annular mounting groove.
  • the elastic member end bearing 41 is mounted in the mounting groove and abuts against one side of the axial limiting portion 37g ( The bottom wall of the mounting groove), a portion of the elastic member 40 is also located in the mounting groove, such that the axial length of the entire actuator 100 is short.
  • the method for obtaining the positive pressure may be limited by the one end axial limiting portion 37g, and one end is riveted, the shaft is fastened by a collar or a nut.
  • the driving unit includes a casing body 37a, a power source 31, and a casing upper cover 37d.
  • the power source 31 is mounted on the casing body 37a
  • the speed reducer is connected to the power source
  • the casing upper cover 37d is connected to the casing body 37a
  • the output gear of the reducer (secondary driven spur gear 35) is mounted on the casing upper cover 37d.
  • the casing upper cover 37d has one side of the axial stopper 37g for limiting the end face of the output gear, and the other end of the elastic member 40 abuts against the other side of the axial stopper 37gg.
  • the casing upper cover 37d has a sleeve 37e, and the output gear sleeve is sleeved outside the sleeve 37e.
  • the sleeve 37e is sleeved outside the mounting shaft 15 and is in clearance fit with the mounting shaft 15.
  • the driving unit 30 includes a power source 31 and a speed reducer.
  • the output shaft of the driving unit may be the output shaft 31a of the power source 31 or the output end of the speed reducer, and the output shaft 31a of the power source 31 and The input end of the speed reducer is connected, the output end of the speed reducer is connected to the mounting unit, or the output end of the speed reducer is connected to the second joint portion 23, and the mounting unit is driven by the second joint portion 23 and the first joint portion 21.
  • the power source 31 can be a motor, an oil pump, a gas pump, etc.
  • the speed reducer can be a gear reducer, a belt drive deceleration, and the reducer can also be a worm gear transmission mechanism.
  • the speed reducer can be a first-stage speed reduction mechanism or a multi-stage speed reduction mechanism.
  • the driving unit 30 for driving the movement of the display terminal includes: a power source 31 and a speed reducer including an active worm and a driven spur gear, and an output shaft 31a of the active worm and the power source 31. Connected, the driven spur gear meshes with the active worm.
  • the worm spur gear reduction mechanism is compact, small in size, light in weight, stable in transmission and low in noise.
  • the entire speed reduction mechanism has flexible layout and is easy to be routed, and is more suitable for the compact space of the vehicle mechanism and the weight limit of the whole vehicle. It can also give users a better driving experience.
  • the output shaft 31a of the power source 31 and the active worm of the reducer can be detachably coupled by a coupling, the active worm is pivotally mounted to the housing of the drive unit 30, and the active worm is In its axial direction, it is positioned in cooperation with the housing of the drive unit 30, in other words, the drive worm is not axially movable relative to the housing of the drive unit 30 (regardless of the assembly gap).
  • the power source 31 outputs the rotational speed to the active worm through the coupling.
  • the power source 31 can be disassembled only through the coupling, because the active worm is axially positioned on the casing of the driving unit 30.
  • the engagement between the active worm and the gear in the reducer is not affected, and the power source 31 and the reducer can be respectively fixed and fixed, and the influence of the vibration of the power source 31 on the components in the reducer can be weakened. Prevent the active worm from swinging.
  • the driving unit 30 for driving the movement of the in-vehicle display terminal by providing the coupling, the meshing stability of the components in the retarder can be improved, the life of the driving unit 30 can be improved, and the power source 31 can be separately repaired. Does not affect the meshing of the worm gear.
  • the coupler includes a first sub-coupling 39a and a second sub-coupling 39b.
  • the first sub-coupling 39a is fixedly coupled to the output shaft 31a of the power source 31, and the second sub-coupling 39b and the active worm The connection is fixed, and the second sub-coupling 39b is detachably coupled to the first sub-coupling 39a.
  • the first sub-coupling 39a and the second sub-coupling 39b When assembled, the first sub-coupling 39a and the second sub-coupling 39b are axially adjacent to each other to achieve assembly, and after the assembly is completed, the first sub-coupling 39a and the second sub-coupling 39b are circumferentially fixed to be The torque is transmitted; when disassembling, the first sub-coupling 39a and the second sub-coupling 39b are axially separated from each other to achieve disassembly, so that the active worm is not affected during disassembly.
  • the first sub-coupling 39a and the second sub-coupling 39b are engaged by the interdigitating teeth, for example, the first sub-coupling 39a is provided with a plurality of splice teeth, and the second sub-coupling 39b is provided with a plurality of slots, the splint and the inserting The slots correspond one by one. At the time of disassembly, it is only necessary to disassemble the first sub-coupling 39a and the second sub-coupling 39b so that the teeth are disengaged from the slots.
  • the housing of the driving unit 30 is provided with an axial limiting support structure, and the active worm is supported by the axial limiting support structure, and the shoulder of the active worm is disposed opposite to the end surface of the axial limiting support structure for axial positioning.
  • the housing of the drive unit 30 includes a case body 37a, a case front cover 37f, and a case back cover 37c.
  • the body 37a defines a first cavity 37k and a second cavity 37m.
  • the first cavity 37k and the second cavity 37m are separated by a partition 37h.
  • the power source 31 is mounted on the first cavity 37k
  • the active worm is mounted on the first body 37a.
  • the two chambers are 37 m
  • the partition plate 37h is provided with a relief hole 37j
  • the active worm extends from the relief hole 37j into the first chamber 37k and is detachably connected to the output shaft 31a of the power source 31, and the partition plate 37h can be disposed at the escape hole 37j.
  • the utility model has an axial limiting support structure, and the partition plate 37h is used for distinguishing two installation cavities, and can axially limit the active worm to prevent the active worm from shaking when the power source 31 is disassembled.
  • One end of the first cavity 37k facing away from the second cavity 37m is open, and the casing rear cover 37c is connected to the casing body 37a to close the open end of the first cavity 37k, and the casing front cover 37f is connected to the casing body 37a to close the second cavity.
  • the open end of the 37m, the coupling is mounted on the first cavity 37k, the casing front cover 37f is provided with a sleeve 37n, the active worm is supported in the sleeve 37n, and the shoulder of the active worm is disposed opposite to the end face of the sleeve 37n.
  • the casing rear cover 37c is disassembled, and the power source 31 and the first sub-coupler 39a are separated and detached from the second sub-coupling 39b as a whole, and the active worm is not affected during the disassembly process. Engagement with the driven spur gear prevents toothing during subsequent use.
  • the angle between the axis of the active worm and the axis of the driven spur gear is an acute angle.
  • the angle between the axis of the active worm and the axis of the driven spur gear is an acute angle ⁇ , which satisfies: 82° ⁇ ⁇ ⁇ 88°.
  • 84° ⁇ ⁇ ⁇ 86°, such as ⁇ 85°, the magnitude of ⁇ is determined by the helix angle of the active worm.
  • the active worm and the driven spur gear are not arranged vertically, so that the meshing state of the active worm and the driven spur gear is good, and the transmission efficiency is higher.
  • the spur gear is easy to process, and the worm gear transmission in the related art is improved to the turbine spur gear transmission, thereby avoiding the problem of poor turbine processing performance.
  • the speed reducer is a first-stage transmission mechanism, and the speed reducer includes: a first-stage active worm and a first-stage driven spur gear, and the first-stage active worm is connected to the output shaft 31a of the power source 31, and the output of the power source 31
  • the shaft 31a may be fixedly coupled to the primary active worm, or the output shaft 31a of the power source 31 may be detachably coupled to the primary active worm through the coupling.
  • the primary active worm meshes with the primary driven spur gear, and the angle between the axis of the primary active worm and the axis of the primary driven spur gear is an acute angle. As shown in FIG.
  • the axis L1 of the primary active worm and the axis L2 of the primary driven spur gear are projected onto the projection plane parallel to the two axes, and the axis of the primary active worm and the first-order driven straight are obtained.
  • the angle of the axis of the gear is ⁇ , which satisfies: 82° ⁇ ⁇ ⁇ 88°.
  • 84° ⁇ ⁇ ⁇ 86°, such as ⁇ 85°
  • the magnitude of ⁇ is determined by the helix angle of the primary active worm.
  • the first-stage active worm and the first-stage driven spur gear are not arranged vertically, so that the meshing state of the first-stage active worm and the first-stage driven spur gear is good, and the transmission efficiency is higher.
  • the spur gear is easy to process, and the worm gear transmission in the related art is improved to the turbine spur gear transmission, thereby avoiding the problem of poor turbine processing performance.
  • the speed reducer is a two-stage transmission mechanism, and the speed reducer includes: a primary active worm 32, a primary driven spur gear 33, a secondary active worm 34, and a second stage.
  • the driven spur gear 35 is a two-stage transmission mechanism, and the speed reducer includes: a primary active worm 32, a primary driven spur gear 33, a secondary active worm 34, and a second stage.
  • the driven spur gear 35 is a two-stage transmission mechanism, and the speed reducer includes: a primary active worm 32, a primary driven spur gear 33, a secondary active worm 34, and a second stage.
  • the driven spur gear 35 is a two-stage transmission mechanism, and the speed reducer includes: a primary active worm 32, a primary driven spur gear 33, a secondary active worm 34, and a second stage.
  • the driven spur gear 35 is a two-stage transmission mechanism, and the speed reducer includes: a primary active worm 32, a primary driven spur gear 33, a secondary active worm
  • the output shaft 31a of the power source 31 is connected to the first-stage active worm 32, and the first-stage active worm 32 can be integrated outside the output shaft 31a of the power source 31.
  • the output shaft 31a of the power source 31 can be fixedly connected with the first-stage active worm.
  • the output shaft 31a of the power source 31 is detachably coupled to the primary active worm through the coupler.
  • the primary active worm 32 meshes with the primary driven spur gear 33.
  • the angle between the axis of the primary active worm 32 and the axis of the primary driven spur gear 33 is an acute angle.
  • the primary active worm 32 and the primary driven spur gear 33 are not vertically arranged, so that the meshing state of the primary active worm 32 and the primary driven spur gear 33 is ensured, and the transmission efficiency is higher.
  • the spur gear is easy to process, and the worm gear transmission in the related art is improved to the turbine spur gear transmission, thereby avoiding the problem of poor turbine processing performance.
  • the secondary active worm 34 is disposed coaxially with the primary driven spur gear 33.
  • the secondary active worm 34 and the primary driven spur gear 33 are axially spaced apart, and the secondary active worm 34 and the primary driven spur gear 33 are disposed. It can be machined in one piece, or the primary driven spur gear 33 can be connected to the secondary active worm 34 via a spline.
  • the secondary driven spur gear 35 meshes with the secondary active worm 34, and the secondary driven spur gear 35 is used to output the driving force of the drive unit 30.
  • the angle between the axis of the secondary active worm 34 and the axis of the secondary driven spur gear 35 is an acute angle. As shown in FIG. 17, the axis L3 of the secondary active worm 34 and the axis L4 of the secondary driven spur gear 35 are projected.
  • the spur gear is easy to process, and the worm gear transmission in the related art is improved to the turbine spur gear transmission, thereby avoiding the problem of poor turbine processing performance.
  • the axis of the primary active worm 32, the axis of the secondary driven spur gear 35, and the axis of the clutch unit are parallel.
  • the axis of the output shaft 31a of the power source 31 is parallel and spaced apart from the axis of the secondary driven spur gear 35. Thereby, it is possible to realize that the arrangement direction of the power source 31 is parallel to the output direction of the driving unit 30, which is convenient for assembly design.
  • the self-locking function of the worm can be used (the screw angle of the worm can be triggered by the friction angle to trigger the self-locking), and the clutching function of the overall solution can be realized, that is, when the manual operation is performed, the speed reducer is self-locking, so that the first The two engaging portions 23 are fixed so that the first engaging portion 21 can be relatively rotated.
  • the worm spur gear reduction mechanism is compact, small in size, light in weight, stable in transmission and low in noise.
  • the entire speed reduction mechanism has flexible layout and is easy to be routed, and is more suitable for the compact space of the vehicle mechanism and the weight limit of the whole vehicle. It can also give users a better driving experience.
  • the first-stage driven spur gear 33 transmits the high-speed rotation of the first-stage active worm 32 to the two-stage active worm 34.
  • the first-stage driven spur gear 33 can be a plastic part, a first-stage active worm 32,
  • the secondary active worm 34 and the secondary driven spur gear 35 are metal parts.
  • the secondary driven spur gear 35 is coupled to the second engaging portion 23 to achieve power output, for example, the secondary driven spur gear 35 is integrally formed with the second engaging portion 23, and the second driven spur gear 35 is coupled to the second joint.
  • the functional requirements of the portion 23 can be made of different materials, the secondary driven spur gear 35 is made of a wear resistant material, and the second joint portion 23 is made of a self-lubricating material such as polyoxymethylene, molybdenum disulfide, nitrogen. Boron and so on.
  • the driving unit 30 may further include an output interface connected to the secondary driven spur gear 35, the output interface for outputting the driving force, and the output interface may be the second engaging portion of the clutch unit. twenty three.
  • Both the output interface and the secondary driven spur gear 35 are hollow annular.
  • the first engaging portion 21, the second engaging portion 23 and the secondary driven spur gear 35 have a hollow shape for convenient wiring and weight reduction, and the torque input end and the output end are not on the same axis, and the hollow shaft plus the transmission system It is possible to process the input and output axes into parallel axis directions, which is beneficial to the spatial planning of the structure and provides a larger design margin.
  • the first-stage active worm 32 is fixed to the motor shaft, and one end is extended by the motor and the other end is limited by the outer casing structure.
  • the primary driven spur gear 33 and the secondary active worm 34 are fixed on the same shaft. Due to space limitation, there is no bearing at both ends but a shoulder bushing 37n with lubrication inside.
  • the secondary driven spur gear 35 is also limited by the outer casing structure, one section is integrated with the output structure, and the other end is supported by the end bearing. Both the sleeve 37n and the end bearing reduce frictional losses during rotation and reduce frictional heat generation.
  • the secondary driven spur gear 35 can be a hollow gear, on the one hand reducing the weight of the entire drive unit 30 and on the other hand facilitating assembly.
  • the casing of the drive unit 30 includes a casing body 37a, a casing rear cover 37c, a casing upper cover 37d, and a casing front cover 37f.
  • the power source 31, the first-stage active worm 32, the first-stage driven spur gear 33, and the second-stage active worm 34 are all mounted on the shell body 37a, and the second-stage driven spur gear 35 is mounted on the casing upper cover 37d.
  • the gear 33 and the secondary active worm 34 are fixed on the same shaft, and the primary driven spur gear 33 and the secondary active worm 34 are coaxially disposed.
  • the casing body 37a is a plastic member
  • the casing upper cover 37d is a metal member. It can be understood that the shell body 37a mainly carries the high-speed component, and the plastic component is provided for the shock absorption; the casing upper cover 37d mainly carries the low-speed component and is integrally formed.
  • the housing body 37a and the cabinet top cover 37d can be a single piece.
  • the casing rear cover 37c is connected to the casing body 37a to close the rear end of the casing body 37a
  • the casing upper cover 37d is connected to the casing body 37a
  • the casing front cover 37f is connected to the casing body 37a to close the front end of the casing body 37a.
  • the casing back cover 37c, the casing upper cover 37d, the casing front cover 37f and the casing body 37a may be connected by a snap-fit structure and a threaded fastener.
  • the drive unit 30 is subjected to an impact load throughout the system, and the second engaging portion 23 is subjected to axial positive pressure and circumferential torque during rotation and is transmitted to the housing. Therefore, in order to ensure the stability of the driving unit 30, in addition to the screw and snap connection between the components, the driving unit 30 and the base 50 in the actuator 100 are also fastened by screws for increasing the strength of the driving unit 30. Improve their service life.
  • the housing of the driving unit 30 has an axial limiting portion.
  • the secondary driven spur gear 35 faces away from the axial end portion of the display terminal 200, and the secondary driven spur gear 35 faces away from the end of the second engaging portion 23.
  • the casing upper cover 37d may have an axial stopper portion 37g for limiting the end face of the secondary driven spur gear 35 such that one end face of the secondary driven spur gear 35 and the second engaging portion 23 Connected, the other end surface of the secondary driven spur gear 35 is pressed against the upper cover 37d of the casing to ensure the axial positioning of the secondary driven spur gear 35, and the secondary driven spur gear 35 and the secondary active worm 34 are prevented from being hit. tooth.
  • the secondary driven spur gear 35 presses the axial limit portion 37g through the gear end face bearing 36, and the gear end face bearing 36 can push the bearing so as to reduce the friction between the secondary driven spur gear 35 and the casing of the drive unit 30. Force to reduce torque loss.
  • an annular groove can be provided in the casing upper cover 37d for assembling the gear end face bearing 36.
  • the end face of the secondary driven spur gear 35 facing away from the second engaging portion 23 may be provided with an annular groove, the gear end face bearing 36 is disposed in the annular groove, and the gear end face bearing 36 presses against the bottom wall of the annular groove, and the axial limiting portion 37g At least a portion of the portion extends into the annular groove.
  • the axial limiting portion 37g may be provided with a deep groove shape, one end surface of the axial limiting portion 37g abuts against the elastic member end face bearing 41, and the other end surface of the axial limiting portion 37g abuts the gear
  • the end bearing 36, the gear end bearing 36 is also within the annular groove of the secondary driven spur gear 35, and at least a portion of the resilient member 40 can be located within the annular groove of the secondary driven spur gear 35.
  • the casing upper cover 37d has a sleeve 37e
  • the secondary driven spur gear 35 is sleeved outside the sleeve 37e
  • the axial stopper portion 37g is located on the outer circumferential surface of the sleeve 37e.
  • the housing of the drive unit 30 has a radial retaining mechanism, and the second engaging portion 23 is rotatably disposed on the radial retaining mechanism to be at the upper radial limit.
  • the radial retention mechanism is used to define a radial offset of at least a portion of the rotating component to prevent radial displacement of the actuator 100 during operation such that the actuator 10 remains stable during long-term operation.
  • the housing of the drive unit 30 is mounted behind the vehicle body, and the housing of the drive unit 30 has two outer sleeves and an inner ring disposed in an empty sleeve, and the radial retention mechanism includes an outer ring and an inner ring.
  • the outer ring is sleeved on the inner and outer rings, the outer ring and the inner ring define an annular cavity, at least part of the second joint portion 23 is disposed in the annular cavity, and at least part of the second joint portion 23 is sleeved outside the inner ring, and the inner ring is used for the inner ring
  • the outer ring is sleeved outside at least a portion of the second engaging portion 23, and the outer ring is for preventing the second engaging portion 23 from being biased outward in the radial direction.
  • the housing of the driving unit 30 includes a housing body 37a, a casing upper cover 37d, and a casing front cover 37f.
  • the casing upper cover 37d is connected to the casing body 37a, and the casing is
  • the upper cover 37d has an annular sleeve 37e
  • the casing front cover 37f is connected to the front end of the casing body 37a
  • the casing front cover 37f has an annular limiting ring 37p
  • the limiting ring 37p is sleeved outside the sleeve 37e to define
  • the annular cavity in other words, the inner diameter of the retaining ring 37p is larger than the inner diameter of the sleeve 37e, the annular cavity is located between the inner peripheral wall of the retaining ring 37p and the outer peripheral wall of the sleeve 37e, and at least part of the second engaging portion 23 is provided in the annular shape Inside the cavity.
  • At least a portion of the second engaging portion 23 is sleeved outside the sleeve 37e, the sleeve 37e is for preventing the second engaging portion 23 from being biased radially inward, and the limiting ring 37p is sleeved outside at least part of the second engaging portion 23.
  • the limit ring 37p serves to prevent the second engaging portion 23 from being biased outward in the radial direction.
  • the output portion of the drive unit 30 includes an annular output gear.
  • the output gear may be the secondary driven spur gear 35 described in the above embodiment.
  • the output gear is coupled to the second engaging portion 23, and the output gear is sleeved outside the sleeve 37e.
  • the second engaging portion 23 includes a joint disc 28 for locking with the first joint portion 21 and a joint sleeve 26 connected to one end of the joint disc 28 facing away from the first joint portion 21, the joint sleeve 26 and the output.
  • the gears are connected, and the limiting ring 37p is sleeved outside the connecting sleeve 26.
  • the radially inner and outer sides of the output gear are also respectively defined by the sleeve 37e and the limit ring 37p.
  • the output end of the drive unit 30 is less susceptible to external vibration and prevents toothing.
  • the radial retaining mechanism may further include a radial limiting bearing (not shown), and a radial limiting bearing is arranged between the limiting ring 37p and at least a portion of the second engaging portion 23, such as a limiting ring 37p and a connection
  • a radial limit bearing may be disposed between the sleeves 26 such that the inner ring of the radial limit bearing presses against the connecting sleeve 26, the outer ring of the radial limit bearing abuts against the limiting ring 37p, and the radial direction of the radial retaining mechanism The limit is more stable.
  • the mounting unit includes a mounting shaft 15 that extends through the clutch unit and the driving unit 30.
  • the sleeve 37e is sleeved outside the mounting shaft 15, and the sleeve 37e can limit the mounting shaft 15 radially outward to further enhance the rotation. Radial stability of the disk 13.
  • the driving unit 30 can adopt a planetary gear train or a two-stage worm and spur gear transmission system, so that the system has the following advantages: 1) compact mechanism, small size, light weight; 2) stable transmission, low noise, high transmission ratio, The deceleration effect is obvious; 3) the layout is flexible and easy to route. It is more suitable for the compact space of the vehicle body and the weight limit of the whole vehicle. It can also give the user a better driving experience. 4) The in-position locking system unique to this patent can drive the transmission system inside the drive unit 30 and the outside.
  • the effective isolation of the impact can not only avoid the micro-whirl of the display terminal 200 caused by the internal backlash of the transmission system, improve the stability of the system and the anti-shake and anti-vibration ability, but also avoid the damage of the transmission system caused by external impact, and improve the system. Reliability and life; 5)
  • the present disclosure is mainly used to display the rotating mechanism of the terminal 200; the same applies to other electronic products having rotation requirements; 6)
  • the foregoing describes that the components are connected by the mounting shaft 15 in the axial direction, and a series of components are down.
  • Error stacking production error, assembly error
  • other improved measures are to shorten the axial fit size, find the proper position from the movement structure, design
  • the groove retracts the spring and other components into the movement, reducing the axial length of the entire mechanism to reduce the dimensional chain error; 7) reducing the axial length,
  • the rigidity of the system also increases, so the system is better in bending and torsion resistance when it is loaded by external force, and is not easy to be deformed or damaged.
  • the axial length becomes shorter, in addition to the increase in stiffness, the overall stability There is also improvement, and the amount of shaking is improved.
  • This scheme focuses on the modular design of the automatic manual integrated rotating mechanism. Except for the mounting bracket 11 and the base 50 that cooperate with the external structure, the remaining components form a complete module, which can be applied to any one.
  • the model is even available in other products with rotating function requirements. It has the same interchangeability and versatility as standard parts, which greatly enhances the application range of the product and can be used in actual production.
  • the control system detects the stall signal and the gyroscope built in the display terminal 200 transmits the in-position signal, the control system recognizes the in-position, and de-energizes the motor, the power system transmits the interrupt, and the system is locked in place.
  • In-position locking and protection system The in-position locking function in the automatic mode of the rotating mechanism system is provided by the elastic deformation of the elastic member 40 to provide positive pressure to ensure the positive pressure between the contact surfaces of the components, which can be effective.
  • the influence of the road surface impact transmitted from the base 50 to the system on the display terminal 200 is isolated, thereby effectively protecting the transmission system, further improving the reliability of the system.
  • One end of the automatic mode rotating disc 13 forms the retaining wall pressing elastic member 40 by using the axial limiting member 42 and the other end is a disc body, which is similar to the function of the shoulder to jointly realize the locking action of the plurality of axial components.
  • the display terminal 200 can be effectively prevented from being trembled due to the existence of the backlash in the driving unit 30, thereby avoiding the visual stay phenomenon caused by the vibration of the transmission system, thereby preventing the risk of damage of the transmission system caused by the micro-vibration toothing in the vibration shock, thereby ensuring the risk. Anti-shake and anti-vibration performance of the system.
  • the second joint portion 23 is provided with six locking grooves 25, one set of three, the angle between the two groups is slightly greater than 90°, and the first joint portion 21 is provided with three locking protrusions 27, which can be combined with the second
  • the two sets of locking grooves 25 of the joint 23 are respectively adapted at the two end points of the rotary stroke.
  • the locking groove 25 and the locking projection 27 have an arc shape in cross section, which can achieve a clear positioning and a good hand feeling.
  • the locking groove 25 is slightly larger than the locking protrusion 27 to reserve an appropriate pre-compression angle, which can avoid the card not in place due to manufacturing tolerances, reduce the requirement for the clutch unit and the positional accuracy, and can avoid the gap caused by the production error.
  • the parts are shaking and unstable.
  • the oil groove 24 is provided on the end surface of the second joint portion 23, which greatly improves the friction state of the first joint portion 21 and the second joint portion 23 when the relative rotation is performed, thereby improving the life of the component and improving the manual to a certain extent. The feel when turning.
  • the key components of the manual mode are the first engaging portion 21 and the second engaging portion 23.
  • the two members are temporarily fastened integrally, and the driving unit 30 outputs automatic power to realize automatic rotation.
  • the outstanding feature of the solution is that it has two working modes, manual and automatic, which are separated by a reasonable torque threshold.
  • the structure is to make the second joint part 23 of the manual mode into the output end of the driving unit 30. The modes coexist.
  • the system displays that the terminal 200 rotates at a very slow rotational speed (about 6 to 10 r/min), which requires the driving unit 30 to have a large transmission ratio of about 1500 to 2000.
  • the planetary worm reducer or the double worm spur gear double worm reduction system can be selected according to the specific structural layout, and the overall rotating shaft is designed as a hollow structure, which is convenient for the design of the locking system.
  • the rotating system adopts the embedded current limiting circuit board.
  • the motor is powered off, thereby realizing the safety against clamping and overload protection of the system.
  • the abnormal position determination includes the manual operation in the automatic running state.
  • the actual abnormal position feedback processing can design the software function according to the customer requirement definition.
  • the limit locking structure of this scheme can fully adapt to different software function definitions at the physical level ( About the control of the abnormal position).
  • the rotating disc 13 and the mounting shaft 15 are hollowed out for easy routing, so that the wiring harness behind the screen is reasonable and beautiful, and the outlet has a large rounded corner, which is also to prevent secant.
  • This system is a centering rotation system, that is, the rotation center is always unchanged during the rotation process, so the matching brackets 11 of the unified interface can be used to achieve matching and compatibility between the multi-size terminals. Thereby improving the versatility, cost saving and convenient quality control of the product.
  • the system displays that the terminal 200 is suspended in the middle control, which can make the instrument table surface more tidy and beautiful.
  • the present invention relates to an actuator 100 of the display terminal 200 that can realize manual and automatic rotation of the display terminal 200.
  • the actuator 100 can implement the following functions: 1) automatic switching between the display terminal 200 in two states: horizontal and vertical; In order to enhance the user experience, provide manual and automatic two rotation modes; 3) automatic positioning and locking after rotating in position; 4) anti-shake and anti-vibration of the system; 5) system overload protection and safety anti-clamp; 6) Dimensional terminal matching is compatible and adaptable.
  • the present disclosure also discloses a vehicle 1000 that also discloses a vehicle 1000.
  • the vehicle 1000 of the embodiment of the present disclosure includes: a display terminal 200, such as the above-described actuator 100, the display terminal 200 is mounted on the mounting unit of the actuator 100, and the actuator 100 is mounted on the vehicle body, such as The housing of the driving unit 30 may be mounted to the vehicle body through the base 50.
  • the rotation axis of the display terminal 200 may be an X-direction (front-rear direction), and the display terminal 200 may be a vehicle-mounted display terminal, such as a display panel mounted on the instrument panel.
  • the display terminal 200 of the vehicle of the embodiment of the present disclosure can perform multi-angle use, such as switching between horizontal and vertical screens by manual or automatic means.
  • An actuator for adjusting a display terminal comprising: a rotating disk for mounting a display terminal; a clutch unit, a first engaging portion of the clutch unit being coupled to the rotating disk, the clutch unit a second joint portion engaged with the first joint portion and having a plurality of joint positions; a drive unit, an output end of the drive unit being coupled to the second joint portion; a mounting shaft, the mounting shaft and the rotating disc Pivotablely connected, and in an axial upper limit position, the mounting shaft extends through the clutch unit, the drive unit; wherein the first joint portion and the second joint portion are often locked to each other, the mounting unit is
  • the utility model is configured to be manually rotated to drive the first engagement portion to be rotatably switchable between the plurality of engagement positions with respect to the second engagement portion.
  • the mounting shaft has a flange that folds radially outward, one end face of the flange being axially upper than the rotating disk.
  • the actuator for adjusting the display terminal further includes: a mounting shaft bearing, the flange being pressed against the rotating disk by the mounting shaft bearing.
  • a stepped surface is disposed between an end surface of the rotating disk and the inner peripheral wall, and a single side of the mounting shaft bearing has an L-shaped cross section, and the mounting shaft bearing is sleeved outside the mounting shaft, and The two end faces of the folded side of the mounting shaft bearing respectively press the stepped surface and the flange.
  • the mounting shaft is radially mated with the clutch unit and the drive unit.
  • in some embodiments, is external to the housing of the drive unit.
  • the clutch unit is at least partially located within the mounting unit.
  • the rotating disk has a first groove toward an end of the first joint, the first joint being at least partially located within the first groove.
  • the second joint is at least partially located within the first groove.
  • the rotating disk is integrally formed with the first joint.
  • the housing of the drive unit has a radial retention mechanism that is rotatably disposed on the radial retention mechanism to be at a radial upper limit.
  • the housing of the drive unit has two outer and inner rings disposed in an empty sleeve, the radial retention mechanism including the outer ring and the inner ring, the outer ring and the outer ring
  • the inner ring defines an annular cavity, at least a portion of the second engagement portion being disposed within the annular cavity.
  • the housing of the drive unit includes: a housing body, a cabinet upper cover, and a cabinet front cover, the cabinet upper cover being coupled to the housing body and having an annular sleeve, the machine
  • the front cover of the shell is connected to the front end of the shell body and has an annular retaining ring, the retaining ring is sleeved outside the sleeve to define an annular cavity, and at least part of the second joint is disposed at the Said in the annular cavity.
  • a radial limit bearing is provided between the stop ring and the at least portion of the second joint.
  • the output of the drive unit includes an annular output gear coupled to the second engagement portion, the output gear sleeved outside the sleeve.
  • the second engaging portion includes a splice tray for locking with the first engaging portion and a connecting sleeve connected to an end of the engaging disc facing away from the first engaging portion, the connecting The sleeve is connected to the output gear, and the limiting ring is sleeved outside the connecting sleeve.
  • the mounting unit includes a mounting shaft that passes through the clutch unit, the driving unit, and the sleeve is sleeved outside the mounting shaft.
  • the mounting shaft is rotatably disposed within the radial retention mechanism at a radially upper limit.
  • the second engagement portion and the drive unit remain relatively stationary axially when the engagement position is changed, the first engagement portion being axially facing away from the second engagement portion Directional movement.
  • a plurality of the joint positions are formed on an end surface of the first joint portion opposite to the second joint portion.
  • the end faces of the first engaging portion and the second engaging portion are oppositely disposed, and one of the two end faces facing each other has a plurality of locking grooves, and the other has at least one locking A projection, each of the locking projections being adapted to engage with at least two of the locking slots such that the second engagement portion and the first engagement portion are adapted to engage at least at the two engaged positions.
  • the first joint portion is configured such that the rotating disk faces an end surface of the second joint portion, and the lock projection is formed at the end surface.
  • the locking projection is detachably coupled to the rotating disk.
  • the locking groove and the locking projection each have an arcuate cross section.
  • first joint portion and the second joint portion are both annular, and the locking groove and the locking protrusion are both the first joint portion or the The second joint is a concentric fan ring.
  • At least one side of the locking projection abuts against a corresponding side of the locking groove to engage the locking projection with the locking groove.
  • the width of the locking groove gradually decreases from an open end to a bottom portion, a width of the locking protrusion gradually decreases from a root portion to a top end, and a width of the open end of the locking groove is smaller than the lock.
  • the width of the root of the bulge is smaller than the lock.
  • the depth of the locking groove is less than the height of the locking projection.
  • the number of the locking grooves and the locking projections are the same and are evenly spaced apart in the circumferential direction.
  • the locking groove and the locking protrusion are each at least three.
  • the locking groove and the locking projection are clearance-fitted in the circumferential direction.
  • the width of the open end of the locking groove is greater than the width of the root of the locking projection.
  • the depth of the locking groove is greater than the height of the locking projection.
  • the locking groove includes a plurality of sets, the different sets of the locking grooves are staggered in a circumferential direction, and when the first engaging portion and the second engaging portion are in one of the engaging positions, The locking projections are in one-to-one correspondence with the locking grooves of one of the groups.
  • an angle between the axes of the two locking grooves corresponding to each other in the locking grooves of the two groups is 90°.
  • the method further includes: an elastic member, the elastic member is sleeved outside the mounting shaft, and one end of the elastic member is pressed against the axial limiting member fixed to the mounting shaft, and the other end is abutted Pressing the housing of the driving unit to sequentially press the driving unit, the clutch unit, and the rotating disc, and the elastic pre-tightening force of the elastic member is used to make the second joint portion The first joint is joined.
  • the other end of the resilient member presses against the housing of the drive unit via an elastomer end face bearing.
  • the housing of the drive unit and the rotating disk are provided with a mating positioning mechanism to rotate the display terminal by a target angle.
  • the target angle is 90°.
  • the housing of the drive unit is provided with two circumferentially spaced limit stops, the rotating disk being provided with a locating pin extending toward the housing of the drive unit, The positioning pin is adapted to press against the limit stop, and the positioning mechanism includes the limit stop and the positioning pin.
  • the rotating disk is provided with a circular arc-shaped limiting slot
  • the housing of the driving unit is mounted with a positioning pin extending toward the limiting slot, and the positioning pin is adapted to be pressed against The end of the limiting slot, the positioning mechanism includes the limiting slot and the positioning pin.
  • the driving unit includes: a power source and a speed reducer, an output shaft of the power source is connected to an input end of the speed reducer, and an output end of the speed reducer is connected to the second joint portion .
  • the reducer is a one or more stage transmission.
  • the reducer is a worm gear drive.
  • the reducer includes an active worm coupled to the power source and a driven spur gear coupled to the active worm.
  • the speed reducer includes: a first stage active worm connected to an output shaft of the power source; a first stage driven spur gear, the first stage active worm and the one The stage driven spur gear is meshed, and the primary driven spur gear is coupled to the second joint.
  • the axis of the primary active worm is at an acute angle to the axis of the primary driven spur gear.
  • the axis of the primary active worm is at an angle to the axis of the primary driven spur gear, which is: 82° ⁇ ⁇ ⁇ 88°.
  • the speed reducer includes: a first stage active worm connected to an output shaft of the power source; a first stage driven spur gear, the first stage active worm and the one Stage driven spur gear meshing; two-stage active worm, the two-stage active worm is coaxially arranged with the first-stage driven spur gear; two-stage driven spur gear, the two-stage driven spur gear and the second The stage active worm is engaged, and the secondary driven spur gear is coupled to the second joint.
  • an angle between an axis of the primary active worm and an axis of the primary driven spur gear, an axis of the secondary active worm, and an axis of the secondary driven spur gear are all acute angles.
  • the axis of the primary active worm is at an angle ⁇ to the axis of the primary driven spur gear, the axis of the secondary active worm and the axis of the secondary driven spur gear
  • the angle is ⁇ , which satisfies: 82° ⁇ ⁇ ⁇ 88°, 82° ⁇ ⁇ ⁇ 88°.
  • the axis of the primary active worm, the axis of the secondary driven spur gear, and the axis of the clutch unit are parallel.
  • the housing of the drive unit has an axial stop against which the end face of the secondary driven spur gear faces away from the second engagement portion.
  • the primary driven spur gear is a plastic piece, and the primary active worm, the secondary active worm, and the secondary driven spur gear are metal parts.
  • the secondary driven spur gear is formed integrally with the second joint.
  • the driving unit includes: a casing; a power source, the power source is mounted to the casing; a reducer, the reducer is coupled to the power source; a casing upper cover, the An upper cover of the casing is connected to the casing, and an output gear of the reducer is mounted on the upper cover of the casing, and the upper cover of the casing has an axial limit for limiting an end face of the output gear On one side of the portion, the other end of the elastic member presses against the other side of the shoulder.
  • the shell is a plastic piece
  • the upper cover is a metal piece
  • the output gear is pressed against the axial stop by a gear end bearing.
  • the upper cover of the casing has a sleeve, and the output gear is sleeved outside the sleeve, the shaft sleeve is sleeved outside the mounting shaft, and the gap with the mounting shaft Cooperate.
  • a vehicle comprising: a display terminal and an actuator according to any one of the above, the actuator being mounted to a vehicle body, the display terminal being mounted to the mounting unit of the actuator.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

一种用于调节显示终端的执行机构(100),包括:转动盘(13),转动盘(13)用于安装显示终端(200);离合单元,离合单元的第一接合部(21)与转动盘(13)连接,离合单元的第二接合部(23)与第一接合部(21)接合且具有多个接合位置;驱动单元(30),驱动单元(30)的输出端与第二接合部(23)连接;安装轴(15),安装轴(15)与转动盘(13)可枢转地连接,且在轴向上限位,安装轴(15)贯通离合单元、驱动单元(30)。还涉及一种包括该执行机构(100)的车辆(1000)。

Description

用于调节显示终端的执行机构和车辆
相关申请的交叉引用
本申请要求比亚迪股份有限公司于2018年2月11日提交的、发明名称为“用于调节显示终端的执行机构和车辆”的、中国专利申请号为“201810142329.X”的优先权,其全部内容通过引用结合在本申请中。
技术领域
本公开属于显示终端调节技术领域,具体而言,涉及一种用于调节显示终端的执行机构和具有该执行机构的车辆。
背景技术
随着现代汽车在娱乐化和智能化上的要求不断提高,以及移动设备的日益普及,使得车载多媒体的功能和车载多媒体的形式日趋丰富,可与手机互联,电脑互联或者能与互联网连接的多功能的大尺寸车载显示终端已成为未来发展的主流趋势,但目前车载显示终端的固定方式大都以横屏或竖屏的单一模式直接固连于仪表台。这种形式在面对不同规格的图片及视频等影像资源时不能实现等比例和全屏显示,同时也不能够兼顾不同用户的个人使用习惯。
由于手动机构和电动机构的结构难以整合,相关技术中,为了解决上述技术问题,开发出了纯手动或电动机构来旋转车载显示终端,这些机构一方面结构复杂,另一方面难以兼顾手动或电动操作习惯,且由于车载显示终端非固定式,极易随整车的震动而晃动,存在改进空间。
发明内容
本公开旨在至少解决现有中存在的技术问题之一。为此,本公开提出一种用于调节显示终端的执行机构,所述执行机构具备手动和自动调节功能且两种调节方式互不干涉。
本公开还提出一种具有上述执行机构的车辆。
根据本公开第一方面实施例的用于调节显示终端的执行机构,执行机构包括转动盘,所述转动盘用于安装显示终端;离合单元,所述离合单元的第一接合部与所述转动盘连接,所述离合单元的第二接合部与所述第一接合部接合且具有多个接合位置;驱动单元,所述驱动单元的输出端与所述第二接合部连接;安装轴,所述安装轴与所述转动盘可枢转地连接,且在轴向上限位,所述安装轴贯通所述离合单元、所述驱动单元;其中所述第一接合 部和第二接合部常相互锁止,所述安装单元被构造成可被手动转动以带动第一接合部相对于第二接合部可转动地在多个接合位置之间切换。
根据本公开实施例的用于调节显示终端的执行机构,通过离合单元将手动转动显示终端与自动转动显示终端耦合为一个整体,且两种切屏方式互不干涉。
根据本公开第二方面实施例的车辆,包括显示终端和根据本公开上述的执行机构,所述执行机构安装于车体,所述显示终端安装于所述执行机构的所述安装单元。
根据本公开实施例的车辆,与上述的执行机构相对于现有技术所具有的优势相同,在此不再赘述。
本公开的附加方面和优点将在下面的描述中部分给出,部分将从下面的描述中变得明显,或通过本公开的实践了解到。
附图说明
本公开的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解,其中:
图1是根据本发明一个实施例的执行机构的爆炸图;
图2是根据本发明一个实施例的执行机构装配后的侧视图;
图3是图2中A-A处的剖视图;
图4是根据本发明一个实施例的第二接合部与二级从动直齿轮集成的结构示意图;
图5是根据本发明一个实施例的第一接合部的结构示意图;
图6是根据本发明一个实施例的离合单元的结构示意图;
图7是根据本发明另一个实施例的离合单元的结构示意图;
图8是根据本发明一个实施例的转动盘的结构示意图;
图9是图8中B-B处的剖视图;
图10是根据本发明一个实施例的安装轴串起整个执行机构的局部示意图;
图11是根据本发明一个实施例的驱动单元装配后的侧视图;
图12是根据本发明一个实施例的驱动单元的爆炸图;
图13是根据本发明另一个实施例的驱动单元的爆炸图;
图14是根据本发明又一个实施例的驱动单元的结构示意图;
图15是根据本发明又一个实施例的驱动单元的爆炸图;
图16表示了角α的示意图;
图17表示了角β的示意图;
图18是根据本发明一个实施例的离合单元的爆炸图;
图19是根据本发明一个实施例的驱动单元的爆炸图(示出了径向保持机构);
图20是根据本公开一个实施例的车辆的结构示意图。
附图标记:
车辆1000,
执行机构100,
安装支架11,台阶面12,转动盘13,第一凹槽13a,第二凹槽13b,限位槽14,安装轴15,翻边16,安装轴轴承17,
第一接合部21,第二接合部23,油槽24,接合盘28,连接套26,
锁止槽25,锁止凸起27,
驱动单元30,动力源31,一级主动蜗杆32,一级从动直齿轮33,二级主动蜗杆34,二级从动直齿轮35,齿轮端面轴承36,壳身37a,机壳后盖37c,机壳上盖37d,套筒37e,机壳前盖37f,轴向限位部37g,隔板37h,避让孔37j,第一腔37k,第二腔37m,轴套37n,限位环37p,限位止口38,第一子联接器39a,第二子联接器39b,
弹性件40,弹性件端面轴承41,轴向限位件42,
底座50,
显示终端200。
具体实施方式
下面详细描述本公开的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的,仅用于解释本公开,而不能理解为对本公开的限制。
在本公开的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以具体情况理解上述术语在本公开中的具体含义。
下面参考图1-图15描述根据本公开实施例的用于调节显示终端200的执行机构100,该执行机构100用于转动显示终端200,比如使显示终端200在横屏或竖屏之间切换,或者使显示终端200转动到其他角度,显示终端200可以为触摸屏。
如图1-图3所示,根据本公开一个实施例的用于调节显示终端200的执行机构100包括:安装单元、离合单元、驱动单元30。
其中,安装单元用于安装显示终端200,显示终端200可以固定安装于安装单元,或者 显示终端200和安装单元之间可以可拆卸地连接。
参考图1、图3和图9,安装单元可以包括:安装支架11、转动盘13和安装轴15。
安装支架11用于安装显示终端200,安装支架11与显示终端200(设有相应接口结构)通过螺栓固连,或者安装支架11可以集成于显示终端200的背面。安装支架11与转动盘13相连,安装支架11与转动盘13之间通过卡扣及两个螺钉实现固连,安装支架11可拆卸地安装于转动盘13。
如图1、图3、图9所示,转动盘13具有第一凹槽13a和第二凹槽13b,第一凹槽13a和第二凹槽13b分别位于转动盘13的两端。
转动盘13朝向离合单元的第一接合部21的一端具有第一凹槽13a,第一接合部21至少部分位于第一凹槽13a内,以缩短整个执行机构100的轴向距离,在一些实施例中,如图3所示,整个第一接合部21位于第一凹槽13a内,离合单元的第二接合部23至少部分位于第一凹槽13a内,在一些实施例中,整个第二接合部23位于第一凹槽13a内以进一步缩短整个执行机构100的轴向距离,执行机构100的整体轴向长度变短,布置更紧凑合理且连接更紧密。
显示终端200通过连接支架11与安装单元10连接,第二凹槽13b适于容纳并连接支架11。在一些实施例中,连接支架11可以通过卡接以及螺栓连接等方式中的至少一种实现与转动盘13的连接,连接支架11可以形成为环形且包括多个呈环形分布的爪型连接件,多个爪型连接件可伸入并插接到第二凹槽13b内。这样不仅连接支架11侵入转动盘13内,而且多个爪型连接件限定出空腔11a,该空腔11a位于显示终端后方,转动盘13的至少部分伸入到该空腔11a内,,这样,合理利用了显示终端200后方的安装单元本身的空间,显著降低了执行机构100整体的轴向长度,布置更紧凑合理且连接更紧密。
如图2和图3所示,转动盘13与第一接合部21动力耦合连接,转动盘13与第一接合部21通过花键相连,比如转动盘13背离显示终端200的端面设有第一花键,第一接合部21的背离第二结合部23的端面设有第二花键,使得转动盘13和第一接合部21之间通过第一花键和第二花键连接。
当然,转动盘13也可以与第一接合部21一体成型,这样可以减少需要装配的零部件数目,减少装配工序。
如图9所示,转动盘13可以为圆盘形,且转动盘13的中间设有圆形通孔,即转动盘13为环形。
如图10所示,转动盘13与安装轴15可枢转地相连,且转动盘13与安装轴15在轴向上限位,转动盘13与安装轴15在轴向上不可发生相对运动。
安装轴15贯通离合单元、驱动单元30,安装轴15用于将各个部件串成整体,安装轴 15不传递动力,在转动盘13转动时,安装轴可以随转或不转动。安装轴15可以为空心轴,以减轻重量。离合单元位于驱动单元30的壳体之外。
如图6和图7所示,离合单元包括第一接合部21和第二接合部23,离合单元的第一接合部21与安装单元连接,第一接合部21与安装单元之间可以进行动力传输,离合单元的第二接合部23与第一接合部21接合,第二接合部23与第一接合部21接合时,离合单元可以传递扭矩,第二接合部23与第一接合部21具有多个接合位置,比如,第一接合部21与第二接合部23相对设置的端面上形成多个接合位置。驱动单元30的输出端与第二接合部23动力耦合连接,离合单元位于驱动单元30的壳体外。
在一些实施例中,离合单元包括端面相对设置的第一接合部21和第二接合部23,且第一接合部21和第二接合部23朝向彼此的两个端面中的一个具有多个锁止槽25,另一个具有至少一个锁止凸起27,执行机构100还可以包括用于提供轴向预紧力的部件,每个锁止凸起适于在轴向预紧力的作用下与至少两个锁止槽25咬合以使第二接合部23与第一接合部21至少适于在周向上分布的两个接合位置接合,在改变接合位置时,第二接合部23与驱动单元30在轴向上保持相对静止,第一接合部21在轴向上朝背离第二接合部23的方向运动,第一接合部21与安装单元连接,驱动单元30的输出端与第二接合部23连接。
在改变接合位置时,第二接合部23与驱动单元30在轴向上保持相对静止,第一接合部21在轴向上朝背离第二接合部23的方向运动。由此,可以防止驱动单元30的内部零部件晃动,这样驱动单元30的驱动及传动更稳定。
驱动单元30可以为电驱式、液压驱动式、气动式等。
如图4所示,离合单元可以位于驱动单元30的壳体之外,这样,在装配离合单元时,不易于与驱动单元30的各个零部件干涉,且不必单独在驱动单元30的壳体内设计离合单元的安装空间,可以简化设计。在一些实施例中,由于离合单元的第一接合部21和第二接合部23在手动模式中会发生相对转动,若将离合单元的一部分设在驱动单元30的壳体内,在执行机构100运行过程中可能会发生卡死等问题。
离合单元至少部分位于安装单元之内。比如如上述实施例所述的第一接合部21或第二接合部23的至少部分位于转动盘13内,这样可以显著降低执行机构100整体的轴向长度,布置更紧凑合理且连接更紧密。
第一接合部21和第二接合部23常相互锁止,常相互锁止是指在常态下第二接合部23与第一接合部21相互锁止,常相互锁止是指当施加在第二接合部23与第一接合部21之间的外力小于使第二接合部23与第一接合部21相互锁止的预紧力时,第二接合部23与第一接合部21保持锁止状态,安装单元被构造成可被手动转动以带动第一接合部21相对于第二接合部23可转动地在多个接合位置之间切换。
在驱动单元30工作时第二接合部23与第一接合部21接合,可以理解的是,在常态下第一接合部21和第二接合部23在轴向预紧力的作用下相互接合,可以传递扭矩,驱动力沿驱动单元30-第二接合部23-第一接合部21-转动盘13-安装支架11-显示终端200传递,从而使显示终端200转动,实现显示终端200的转动或者横竖屏切换。
第一接合部21和第二接合部23在轴向预紧力的作用下形成周向的静摩擦力,该周向的静摩擦力形成第一接合部21和第二接合部23相对转动的开启力。当第一接合部21受到的扭矩大于该开启力时,第一接合部21和第二接合部23相对转动以改变接合位置;当第一接合部21受到的扭矩小于该开启力时,第一接合部21和第二接合部23保持相互接合以传递扭矩。
在执行机构100工作过程中,在驱动单元30不工作且第一接合部21受到的扭矩大于上述开启力时,第二接合部23与第一接合部21相对转动以改变接合位置。
比如手动给显示终端200施加使其转动的扭矩,该扭矩通过安装单元传递给第一接合部21,由于驱动单元30不工作时被锁止,驱动单元30与第二接合部23固定连接,当上述扭矩不大于上述开启力时,第一接合部21与第二接合部23保持接合,显示终端200不转动;当上述扭矩大于上述开启力时,第一接合部21与第二接合部23发生相对转动,从前一个接合位置转动到另一个接合位置,当第一接合部21相对于第二接合部23从第一个接合位置转动到第二接合位置时,即可实现显示终端200的手动转动。
根据本公开实施例的用于调节显示终端200的执行机构100,既能实现显示终端200的手动切屏,又能实现自动切屏,即通过离合单元可以将显示终端200的手动转动方式与自动转动方式耦合在一起,且两种切屏方式互不干涉。
参考图1、图3和图10,安装轴15具有沿径向向外翻折的翻边16,翻边16为环形,翻边16可以与安装轴15的端部相连,翻边16的一个端面与转动盘13在轴向上限位,比如安装轴15的翻边16可以通过安装轴轴承17抵压转动盘13。如图3和图9所示,转动盘13的端面与内周壁之间设有台阶面,安装轴轴承17的单侧具有L形截面,也就是说,安装轴轴承17的形状与安装轴15的形状类似,安装轴轴承17套设在安装轴15外,且安装轴轴承17的翻折边的两个端面分别抵压台阶面和翻边16。这样,安装轴15与转动盘13之间的摩擦力小,且装配稳定性高。安装轴15与手动离合单元、驱动单元在径向上间隙配合,以降低运转摩擦力。
下面描述根据本公开实施例的离合单元的具体结构形式。
本公开实施例的离合单元可以作为调节显示终端200的执行机构100的一部分,用于将执行机构100的驱动单元30输出的动力输出给显示终端200,从而将手动功能与自动驱动功能耦合在一起。
在离合单元的一种实施例中,如图4-图6所示,离合单元包括:第一接合部21和第二接合部23,第一接合部21和第二接合部23的端面相对设置,且第一接合部21和第二接合部23朝向彼此的两个端面中的一个具有多个锁止槽25,第一接合部21和第二接合部23朝向彼此的两个端面中的另一个具有至少一个锁止凸起27。
比如第一接合部21的端面设有锁止槽25,第二接合部23的端面设有锁止凸起27;或者,第二接合部23的端面设有锁止槽25,第一接合部21的端面设有锁止凸起27。
每个锁止凸起27适于与至少两个锁止槽25咬合以使第二接合部23与第一接合部21至少适于在周向上的两个接合位置接合。
如图4-图6所示,第一接合部21和第二接合部23可以均为圆环形,第一接合部21的一个端面和第二接合部23的一个端面相对设置。第一接合部21和第二接合部23中的一个的端面设有油槽24,油槽24用于存储润滑油,以降低摩擦力,比如第一接合部21和第二接合部23中设有锁止槽25的一个的端面设有油槽24,油槽24可以为多个,相邻的两个锁止槽25之间设有多个油槽24。
第一接合部21和第二接合部23朝向彼此的两个端面中的一个具有多个锁止槽25,另一个具有至少一个锁止凸起27,锁止凸起27的至少一部分伸入锁止槽25,且锁止凸起27的侧面与锁止槽25的侧壁抵压时,锁止凸起27与锁止槽25咬合,即可实现第一接合部21和第二接合部23接合。
比如第一接合部21的端面设有锁止槽25,第二接合部23的端面设有锁止凸起27;或者,第二接合部23的端面设有锁止槽25,第一接合部21的端面设有锁止凸起27。为了方便描述,下面仅以第一接合部21的端面设有锁止凸起27,第二接合部23的端面设有锁止槽25为例作进一步地说明。
第一接合部21可以如上述实施例所述的与转动盘13通过花键相连或者形成为一体,在另一些实施例中,第一接合部21被构造成转动盘13朝向第二接合部23的端面,锁止凸起27形成在端面,也就是说,省去了第一接合部21的盘面,这样整个执行机构100的质量轻。锁止凸起27可以一体成型在转动盘13朝向第二接合部23的端面,或者锁止凸起27与转动盘13可拆卸地相连,这样便于转动盘13的结构更简单,便于成型。
多个锁止槽25沿第二接合部23的周向均匀间隔开布置,多个锁止凸起27沿第一接合部21的周向均匀间隔开布置,锁止槽25的数目和锁止凸起27的数目相同,比如锁止槽25和锁止凸起27均至少为三个,比如四个。在锁止槽25和锁止凸起27均为四个的实施例中,在不考虑加工误差的情况下,相邻的两个锁止槽25的中线的夹角为90°,在初始状态,多个锁止凸起27与多个锁止槽25一一对应地咬合,当第一接合部21相对于第二接合部23转动到某个锁止凸起27与相邻的另一个锁止槽25咬合时,即可实现显示终端的转 动。
每个锁止凸起27适于与至少两个锁止槽25咬合以使第二接合部23与第一接合部21至少适于在两个接合位置接合。比如对于某个锁止凸起27,该锁止凸起27可以与两个锁止槽25咬合,这两个锁止槽25的中线之间的角度即表示第一接合部21和第二接合部23相对转动的一个角度。
如图18所示,锁止槽25包括多组,每组包括多个锁止槽25,不同组的锁止槽25沿周向交错设置,第一接合部21和第二接合部23在其中一个接合位置接合时,多个锁止凸起27与其中一组的多个锁止槽25一一对应,第一接合部21和第二接合部23转动到另一个接合位置时,多个锁止凸起27与另一组的多个锁止槽25一一对应,其中两组的锁止槽25中相互对应的两个锁止槽25的中线的夹角为90°。
锁止槽25的组数可以与显示终端200的位置数目一一对应,比如显示终端200包括横竖屏两个位置时,锁止槽25为2组,以锁止槽25包括两组为例,每组包括三个沿周向均匀间隔开设置的锁止槽25,两组所述锁止槽25沿周向交错设置,比如第一组的每个锁止槽25两侧各设有一个第二组的锁止槽25,这样在每次转动过程中,每个锁止凸起27只需从一个锁止槽25嵌入另一个锁止槽25,不会在转动过程中掉入非目标锁止槽25,第一组的这个锁止槽25的中线与第二组的这两个锁止槽25中的一个的中线的夹角为90°,第一组的这个锁止槽25的中线与第二组的这两个锁止槽25中的另一个的中线的夹角为30°,锁止凸起27包括三个,三个锁止凸起27沿周向均匀间隔开设置,当这三个锁止凸起27与不同组的锁止槽25配合时即可实现显示终端200的转动。
如图4-图6所示,锁止槽25和锁止凸起27均具有弧形截面,且锁止凸起27的根部宽度大于锁止凸起27的顶端的宽度,锁止槽25敞开端的宽度大于锁止槽25底部的宽度,锁止凸起27的宽度从根部到顶端逐渐变小。
在锁止凸起27的弧形侧面与锁止槽25的弧形侧壁抵压时,第一接合部21和第二接合部23之间可以传递扭矩;在第一接合部21和第二接合部23之间的扭矩大于上述开启力时,锁止凸起27的弧形侧面与锁止槽25的弧形侧壁发生相对滑动,锁止凸起27抵压到第一接合部21或第二接合部23的端面时,第一接合部21与第二接合部23脱离,锁止凸起27沿第一接合部21或第二接合部23的端面滑动到另一个锁止槽25,即实现显示终端200的旋转。
由于设置弧形锁止槽25和弧形锁止凸起27,使得第一接合部21和第二接合部23在受到大扭矩时可以通过弧形面的相对滑动而脱离,不易发生卡死的情况。锁止槽25和锁止凸起27脱离后,弧形的锁止凸起27沿第二接合部23的端面滑动,第一接合部21和第二接合部23之间的摩擦力变小,便于迅速滑动到下一个接合位置,不易卡死。
如图4-图6所示,沿着离合单元的轴向观察,锁止槽25和锁止凸起27均为与第一接合部21或第二接合部23同心的扇环形,锁止槽25和锁止凸起27均具有与第一接合部21或第二接合部23同心的扇环形截面。也就是说,锁止槽25的宽度沿径向从内向外逐渐变大,锁止凸起27的宽度沿径向从内向外逐渐变大。可以理解的是,在第一接合部21、第二接合部23传递扭矩时,锁止槽25的外端和锁止凸起27的外端受到的力矩大,通过设置上述结构可增大锁止槽25的外端和锁止凸起27的外端的受力面积,降低锁止槽25的外端和锁止凸起27的外端受到的压强,增强锁止槽25的外端和锁止凸起27的外端的强度,防止断裂,其中外端是指锁止槽25和锁止凸起27的背离第一接合部21或第二接合部23的轴线的一端。
如图4-图6所示,锁止凸起27的至少一部分的宽度大于锁止槽25敞开端的宽度,锁止凸起27的至少一侧抵压于锁止槽25的对应侧以使锁止凸起27与锁止槽25咬合。从而可以保证每个锁止凸起27均与对应的锁止槽25咬合,且在显示终端200实际转动角度与设计角度存在一定误差时,每个锁止凸起27均与对应的锁止槽25保持咬合,防止部分锁止凸起27与对应的锁止槽25发生虚咬合的情况,虚咬合是指锁止凸起27伸入对应的锁止槽25但是锁止凸起27与锁止槽25的壁面并未抵压。
在一些实施例中,锁止槽25的宽度从敞开端到底部逐渐变小,锁止凸起27的宽度从根部到顶端逐渐变小,锁止槽25敞开端的宽度小于锁止凸起27根部的宽度。换言之,锁止槽25敞开端的扇环形的圆心角小于锁止凸起27根部的扇环形的圆心角,在第一接合部21和第二接合部23接合时。
可以理解的是,理想情况下(不考虑锁止凸起27与锁止槽25的加工误差),每个锁止凸台的两侧等高处分别与锁止槽25的敞开端的两侧边沿抵压;由于加工误差,比如相邻的两个锁止凸台的夹角不等于90°,每个锁止凸台的宽度不等,部分锁止凸台与对应的锁止槽25可能是单侧抵压,锁止凸起27的至少一侧抵压于锁止槽25的对应侧以使锁止凸起27与锁止槽25咬合。
也就是说,通过设置上述结构形式的锁止凸起27与锁止槽25,可以保证每个锁止凸起27均与对应的锁止槽25咬合,且在显示终端200实际转动角度与设计角度存在一定误差时,每个锁止凸起27均与对应的锁止槽25保持咬合,防止发生部分锁止凸起27与对应的锁止槽25虚咬合的情况,另一方面锁止凸起27的一部分与锁止槽25咬合,便于手动操作时锁止凸起27滑出锁止槽25。
在具体实施中,锁止槽25的深度小于锁止凸起27的高度,这样第二接合部23的强度大。
在离合单元的另一种实施例中,如图4和图5和图7所示,第一接合部21和第二接合部23可以均为圆环形,第一接合部21的一个端面和第二接合部23的一个端面相对设置。第一接合部21和第二接合部23中的一个的端面设有油槽24,油槽24用于存储润滑油,以降低摩擦力。
第一接合部21和第二接合部23朝向彼此的两个端面中的一个具有多个锁止槽25,另一个具有至少一个锁止凸起27,锁止凸起27的至少一部分伸入锁止槽25,且锁止凸起27的侧面与锁止槽25的侧壁抵压时,锁止凸起27与锁止槽25咬合,即可实现第一接合部21和第二接合部23接合。
每个锁止凸起27适于与至少两个锁止槽25咬合以使第二接合部23与第一接合部21至少适于在两个接合位置接合。比如对于某个锁止凸起27,该锁止凸起27可以与两个锁止槽25咬合,这两个锁止槽25的中线之间的角度即表示第一接合部21、第二接合部23相对转动的一个角度。
比如第一接合部21的端面设有锁止槽25,第二接合部23的端面设有锁止凸起27,或者,第二接合部23的端面设有锁止槽25,第一接合部21的端面设有锁止凸起27。为了方便描述,下面仅以第一接合部21的端面设有锁止凸起27,第二接合部23的端面设有锁止槽25为例作进一步地说明。
如图18所示,或者锁止槽25包括多组,每组包括多个锁止槽25,不同组的锁止槽25沿周向交错设置,第一接合部21和第二接合部23在其中一个接合位置接合时,多个锁止凸起27与其中一组的多个锁止槽25一一对应,第一接合部21和第二接合部23转动到另一个接合位置时,多个锁止凸起27与另一组的多个锁止槽25一一对应,其中两组的锁止槽25中相互对应的两个锁止槽25的中线的轴线的夹角为90°。
锁止槽25的组数可以与显示终端200的位置数目一一对应,比如显示终端200包括横竖屏两个位置时,锁止槽25为2组,以锁止槽25包括两组为例,每组包括三个沿周向均匀间隔开设置的锁止槽25,两组所述锁止槽25沿周向交错设置,比如第一组的每个锁止槽25两侧各设有一个第二组的锁止槽25,这样在每次转动过程中,每个锁止凸起27只需从一个锁止槽25嵌入另一个锁止槽25,不会在转动过程中掉入非目标锁止槽25,第一组的这个锁止槽25的中线与第二组的这两个锁止槽25中的一个的中线的夹角为90°,第一组的这个锁止槽25的中线与第二组的这两个锁止槽25中的另一个的中线的夹角为30°,锁止凸起27包括三个,三个锁止凸起27沿周向均匀间隔开设置,当这三个锁止凸起27与不同组的锁止槽25配合时即可实现显示终端200的转动。
如图4、图5和图7所示,锁止槽25和锁止凸起27均具有弧形截面,且锁止凸起27的根部宽度大于锁止凸起27的顶端的宽度,锁止槽25的敞开端的宽度大于锁止槽25的底 部的宽度,锁止凸起27的宽度从根部到顶端逐渐变小。
锁止槽25与锁止凸起27在周向上间隙配合,即锁止槽25在周向的宽度大于锁止凸起27在周向的宽度,锁止槽25的深度大于锁止凸起27的高度,锁止槽25敞开端的宽度大于锁止凸起27根部的宽度,锁止凸起27的单侧抵压于锁止槽25的一侧以使锁止凸起27与锁止槽25咬合。这样,多个锁止凸起27的在周向上的同侧抵压对应的锁止槽25的一个侧壁实现第一接合部21与第二接合部23的咬合。
在锁止凸起27的弧形侧面与锁止槽25的弧形侧壁抵压时,第一接合部21和第二接合部23之间可以传递扭矩;在第一接合部21和第二接合部23之间的扭矩大于上述开启力时,锁止凸起27的弧形侧面与锁止槽25的弧形侧壁发生相对滑动,锁止凸起27抵压到第一接合部21或第二接合部23的端面时,第一接合部21与第二接合部23脱离,锁止凸起27沿第一接合部21或第二接合部23的端面滑动到另一个锁止槽25,即实现显示终端200的旋转。
由于设置弧形锁止槽25和弧形锁止凸起27,使得第一接合部21、第二接合部23在受到大扭矩时可以通过弧形面的相对滑动而脱离,且锁止槽25、锁止凸起27脱离后,第一接合部21、第二接合部23之间的摩擦力变小,便于迅速滑动到下一个接合位置,不易卡死。
如图4、图5和图7所示,沿着离合单元的轴向观察,锁止槽25和锁止凸起27均为与第一接合部21或第二接合部23同心的扇环形,锁止槽25和锁止凸起27均具有与第一接合部21或第二接合部23同心的扇环形截面。也就是说,锁止槽25的宽度沿径向从内向外逐渐变大,锁止凸起27的宽度沿径向从内向外逐渐变大。可以理解的是,在第一接合部21、第二接合部23传递扭矩时,外端受到的力矩大,通过设置上述结构可增强外端的强度,防止断裂。
手动转动显示终端200时为了确保转动到目标角度,比如目标角度可以为90°,显示终端200在横竖屏之间切换,在与车身固定连接的零件与转动零件之间设置配对的定位机构,比如驱动单元30的壳体与转动盘13上设有配对的定位机构,以使所述显示终端200转动目标角度,下面介绍两种形式的定位机构。
在一种实施例中,定位机构包括限位止口38和定位销(图中未示出),如图12所示,驱动单元30的壳体设有两个限位止口38,这两个限位止口38沿驱动单元30的壳体的周向间隔开,这两个限位止口38之间的角度为转动的目标角度,比如90°,转动盘13设有定位销,定位销朝向驱动单元30的壳体伸出,定位销适于抵压限位止口38,在初始位置时,定位销抵压一个限位止口38,转动显示终端200,转动盘13与定位销一起转动到定位销抵压另一个限位止口38时,表示显示终端200转动到位,配合第一接合部21和第二接 合部23的锁止槽25和锁止凸起27,可以保证第一接合部21和第二接合部23始终接合。
在另一种实施例中,定位机构包括限位槽14和定位销(图中未示出),如图8所示,转动盘13设有圆弧形的限位槽14,驱动单元30的壳体安装有定位销,定位销朝向限位槽14伸出,定位销可以在限位槽14内滑动,限位槽14的弧度等于显示终端200的目标转动角度,定位销适于抵压限位槽14的端部,在定位销从限位槽14的一端转动到另一端时,即表示显示终端200转动到位,配合第一接合部21和第二接合部23的锁止槽25和锁止凸起27,可以保证第一接合部21和第二接合部23始终接合。
如图1、图3所示,执行机构100还包括:弹性件40,弹性件40套设在安装轴15外,且弹性件40的一端抵压固定于安装轴15的轴向限位件42,弹性件40的另一端抵压驱动单元的壳体,以使驱动单元30、手动离合单元、转动盘13顺次压紧,弹性件40的弹性预紧力用于使第二接合部23与第一接合部21接合,弹性件40可以为弹簧。
在一些实施例中,弹性件40的另一端通过弹性件端面轴承41抵压驱动单元30的壳体,弹性件端面轴承41可以为止推轴承。由此,在显示终端200转动时,驱动单元30的壳体不动,安装轴15转动,通过设置弹性件端面轴承41可以显著降低弹性件40与驱动单元30的壳体之间的摩擦力。
在手动模式中,向第一接合部21施加扭矩,比如手动转动显示终端200,第一接合部21、第二接合部23之间产生扭矩,当该扭矩大于上述开启力时,,锁止凸起27逐渐从锁止槽25脱出,在锁止凸起27从锁止槽25脱出后,第二接合部23与驱动单元30在轴向上相对整车不动,弹性件40被压缩,第一接合部21在轴向上朝背离第二接合部23的方向运动,显示终端200也在轴向上朝背离第二接合部23的方向运动,即显示终端200朝后(整车的后方)运动。
如图10所示,弹性件40可以套设在安装轴15外,且安装轴15上固定有轴向限位件42,轴向限位件42可以为卡环,弹性件40的一端抵压轴向限位件42,弹性件40的另一端抵压驱动单元30。轴向限位件42、安装轴15、转动盘13之间的轴向固定连接限制系统的轴向长度。这样,可以使串联起来的各元器件间保持一定的正压力(压力由“外圈”的弹性件40压缩形变提供),串联起来的各元器件包括:转动盘13、离合单元,实现系统的锁紧功能,此处同时实现了各元器件间轴向限位
在一些实施例中,如图10所示,弹性件40的另一端通过弹性件端面轴承41抵压驱动单元30的壳体,弹性件端面轴承41可以为止推轴承。由此,在显示终端200转动时,驱动单元30的壳体不动,安装轴15转动,通过设置弹性件端面轴承41可以显著降低弹性件40与驱动单元30的壳体之间的摩擦力。驱动单元30的壳体具有轴向限位部37g,轴向限位部37g处形成环形的安装槽,弹性件端面轴承41安装于安装槽内,且抵压轴向限位部 37g的一个侧面(该安装槽的底壁),弹性件40的一部分也位于该安装槽内,这样,整个执行机构100的轴向长度短。
获得正压力的方法除了本方案外也可以采用一端轴向限位部37g限位,一端采用铆接、轴用卡圈或者螺母拧紧实现。
下面描述本公开实施例的执行机构100的驱动单元30的结构。
驱动单元包括:壳身37a、动力源31、机壳上盖37d。动力源31安装于壳身37a,减速器与动力源31相连,机壳上盖37d与壳身37a相连,减速器的输出齿轮(二级从动直齿轮35)安装于机壳上盖37d,机壳上盖37d具有用于对输出齿轮的端面限位的轴向限位部37g的一侧,弹性件40的另一端抵压轴向限位部37gg的另一侧。机壳上盖37d具有套筒37e,输出齿轮套设在套筒37e外,套筒37e套设在安装轴15外,且与安装轴15间隙配合。
如图12-图15所示,驱动单元30包括:动力源31和减速器,驱动单元的输出轴可以是动力源31的输出轴31a或者减速器的输出端,动力源31的输出轴31a与减速器的输入端相连,减速器的输出端与安装单元相连,或者减速器的输出端与第二接合部23相连,并通过第二接合部23、第一接合部21驱动安装单元。
动力源31可以为电机、油泵、气泵等,减速器可以为齿轮减速机、带传动减速,减速器也可以为蜗杆齿轮传动机构等。减速器可以为一级减速机构,也可以为多级减速机构。
如图12-图15所示,用于驱动显示终端运动的驱动单元30,包括:动力源31和减速器,减速器包括主动蜗杆和从动直齿轮,主动蜗杆与动力源31的输出轴31a相连,从动直齿轮与主动蜗杆啮合。
采用蜗杆直齿轮减速机构,该机构紧凑、体积小、重量轻,且传动平稳、噪声低,整个减速机构布局灵活,便于走线,更适用整车机构空间紧凑、整车限重的要求,同时也可以给用户更好的驾乘体验。
如图14和图15所示,动力源31的输出轴31a与减速器的主动蜗杆可以通过联接器可拆卸地连接,主动蜗杆可枢转地安装于驱动单元30的壳体,且主动蜗杆在自身的轴向上与驱动单元30的壳体定位配合,换言之,主动蜗杆相对于驱动单元30的壳体在轴向上不可相对移动(不考虑装配间隙)。
可以理解的是,动力源31通过此联接器对主动蜗杆输出转速,在动力源31损坏时,只需通过联接器拆卸动力源31即可,由于主动蜗杆沿轴向定位于驱动单元30的壳体,在拆卸动力源31时,不影响减速器内主动蜗杆与齿轮的啮合,且动力源31和减速器可以分别安装固定,可以弱化动力源31的振动对减速器内的零部件的影响,防止主动蜗杆摆动。
根据本公开实施例的用于驱动车载显示终端运动的驱动单元30,通过设置联接器,可以提高减速器内零部件的啮合稳定性,提高驱动单元30的寿命,且可以单独检修动力源 31而不会影响蜗杆齿轮的啮合情况。
如图15所示,联接器包括:第一子联接器39a和第二子联接器39b,第一子联接器39a与动力源31的输出轴31a固定连接,第二子联接器39b与主动蜗杆固定连接,且第二子联接器39b与第一子联接器39a可拆卸地连接。
在装配时,第一子联接器39a与第二子联接器39b沿轴向相互靠近以实现装配,且在装配完成后第一子联接器39a与第二子联接器39b沿周向固定以可传递扭矩;在拆卸时,第一子联接器39a与第二子联接器39b沿轴向相互背离以实现拆卸,这样在拆卸时不影响主动蜗杆。第一子联接器39a与第二子联接器39b通过插分齿啮合,比如第一子联接器39a设有多个插齿,第二子联接器39b设有多个插槽,插齿与插槽一一对应。在拆卸时,只需将第一子联接器39a与第二子联接器39b拆卸使插齿与插槽脱离即可。
驱动单元30的壳体设有轴向限位支承结构,主动蜗杆支承于轴向限位支承结构,且主动蜗杆的轴肩与轴向限位支承结构的端面相对设置以实现轴向定位。
如图14和图15所示,驱动单元30的壳体包括:壳身37a、机壳前盖37f、机壳后盖37c。
壳身37a,壳身37a限定出第一腔37k和第二腔37m,第一腔37k和第二腔37m通过隔板37h隔开,动力源31安装于第一腔37k,主动蜗杆安装于第二腔37m,隔板37h设有避让孔37j,且主动蜗杆从避让孔37j伸入第一腔37k并与动力源31的输出轴31a可拆卸地连接,隔板37h在避让孔37j处可以设有轴向限位支承结构,隔板37h用于区分出两个安装腔,且可以对主动蜗实现轴向限位,防止拆卸动力源31时引起主动蜗杆晃动。第一腔37k背离第二腔37m的一端敞开,机壳后盖37c与壳身37a相连,以封闭第一腔37k的敞开端,机壳前盖37f与壳身37a相连,以封闭第二腔37m的敞开端,联接器安装于第一腔37k,机壳前盖37f设有轴套37n,主动蜗杆支承于轴套37n内,且主动蜗杆的轴肩与轴套37n的端面相对设置。
当动力源31需要维修时,拆开机壳后盖37c,将动力源31和第一子联接器39a作为一个整体从第二子联接器39b上分离拆开,拆卸过程中,不影响主动蜗杆与从动直齿轮的啮合,可以防止后续使用过程中发生打齿。
主动蜗杆的轴线与从动直齿轮的轴线的夹角为锐角。主动蜗杆的轴线与从动直齿轮的轴线的夹角为锐角为α,满足:82°≤α≤88°。在一些实施例中,,84°≤α≤86°,比如α=85°,α的大小根据主动蜗杆的螺旋升角来定。
也就是说,主动蜗杆与从动直齿轮并非垂直布置,这样可以保证主动蜗杆与从动直齿轮的啮合状态佳,传动效率更高。直齿轮的加工方便,将相关技术中的蜗轮蜗杆传动改进为涡轮直齿轮传动,从而避免遇到涡轮加工性能差的问题。
在一些实施例中,减速器为一级传动机构,且减速器包括:一级主动蜗杆和一级从动直齿轮,一级主动蜗杆与动力源31的输出轴31a连接,动力源31的输出轴31a与一级主动蜗杆可以固定连接,或者动力源31的输出轴31a与一级主动蜗杆通过联接器可拆卸地相连。一级主动蜗杆与一级从动直齿轮啮合,且一级主动蜗杆的轴线与一级从动直齿轮的轴线的夹角为锐角。如图16所示,将一级主动蜗杆的轴线L1和一级从动直齿轮的轴线L2投影到与这两根轴线平行的投影面上,得到一级主动蜗杆的轴线与一级从动直齿轮的轴线的夹角为α,满足:82°≤α≤88°。在一些实施例中,,84°≤α≤86°,比如α=85°,α的大小根据一级主动蜗杆的螺旋升角来定。也就是说,一级主动蜗杆与一级从动直齿轮并非垂直布置,这样可以保证一级主动蜗杆与一级从动直齿轮的啮合状态佳,传动效率更高。直齿轮的加工方便,将相关技术中的蜗轮蜗杆传动改进为涡轮直齿轮传动,从而避免遇到涡轮加工性能差的问题。
在另一些实施例中,如图12和图13所示,减速器为二级传动机构,减速器包括:一级主动蜗杆32、一级从动直齿轮33、二级主动蜗杆34、二级从动直齿轮35。
其中,动力源31的输出轴31a与一级主动蜗杆32连接,一级主动蜗杆32可以集成于动力源31的输出轴31a外,动力源31的输出轴31a与一级主动蜗杆可以固定连接,或者动力源31的输出轴31a与一级主动蜗杆通过联接器可拆卸地相连。
一级主动蜗杆32与一级从动直齿轮33啮合,一级主动蜗杆32的轴线与一级从动直齿轮33的轴线的夹角为锐角,如图16所示,将一级主动蜗杆的轴线L1和一级从动直齿轮的轴线L2投影到与这两根轴线平行的投影面上,得到一级主动蜗杆32的轴线与一级从动直齿轮33的轴线的夹角α,满足:82°≤α≤88°,在一些实施例中,,84°≤α≤86°,比如α=85°,α的大小根据一级主动蜗杆32的螺旋升角来定。也就是说,一级主动蜗杆32与一级从动直齿轮33并非垂直布置,这样可以保证一级主动蜗杆32与一级从动直齿轮33的啮合状态佳,传动效率更高。直齿轮的加工方便,将相关技术中的蜗轮蜗杆传动改进为涡轮直齿轮传动,从而避免遇到涡轮加工性能差的问题。
二级主动蜗杆34与一级从动直齿轮33同轴设置,二级主动蜗杆34与一级从动直齿轮33沿轴向间隔开设置,二级主动蜗杆34与一级从动直齿轮33可以一体加工,或者一级从动直齿轮33可以通过花键与二级主动蜗杆34相连。
二级从动直齿轮35与二级主动蜗杆34啮合,二级从动直齿轮35用于输出驱动单元30的驱动力。二级主动蜗杆34的轴线与二级从动直齿轮35的轴线的夹角为锐角,如图17所示,将二级主动蜗杆34的轴线L3和二级从动直齿轮35的轴线L4投影到与这两根轴线平行的投影面上,得到二级主动蜗杆34的轴线与二级从动直齿轮35的轴线的夹角β,满足:82°≤β≤88°,在一些实施例中,,84°≤β≤86°,比如β=85°,β的大小根据二级 主动蜗杆34的螺旋升角来定。也就是说,二级主动蜗杆34与二级从动直齿轮35并非垂直布置,这样可以保证二级主动蜗杆34与二级从动直齿轮35的啮合状态佳,传动效率更高。直齿轮的加工方便,将相关技术中的蜗轮蜗杆传动改进为涡轮直齿轮传动,从而避免遇到涡轮加工性能差的问题。
一级主动蜗杆32的轴线、二级从动直齿轮35的轴线、离合单元的轴线平行。动力源31的输出轴31a的轴线与二级从动直齿轮35的轴线平行且间隔开。从而可以实现动力源31的布置方向与驱动单元30的输出方向平行,便于装配设计。
在动力源31不工作时,利用蜗杆的自锁功能(蜗杆的螺旋升角小于摩擦角即可触发自锁),可以实现整体方案的离合功能,即手动操作时,减速器自锁,使得第二接合部23被固定,从而第一接合部21可以相对转动。
采用蜗杆直齿轮减速机构,该机构紧凑、体积小、重量轻,且传动平稳、噪声低,整个减速机构布局灵活,便于走线,更适用整车机构空间紧凑、整车限重的要求,同时也可以给用户更好的驾乘体验。
一级从动直齿轮33将一级主动蜗杆32的高速转动传递给二级主动蜗杆34,为了降低传动过程中的震动,一级从动直齿轮33可为塑胶件,一级主动蜗杆32、二级主动蜗杆34、二级从动直齿轮35为金属件。
二级从动直齿轮35与第二接合部23相连,从而实现动力输出,比如二级从动直齿轮35与第二接合部23形成为一体,根据二级从动直齿轮35与第二接合部23的功能需求,二者可采用不同材料制成,二级从动直齿轮35为耐磨材料制成,第二接合部23为自润滑材料制成,比如聚甲醛、二硫化钼、氮化硼等。
如图12和图13所示,驱动单元30还可以包括:输出接口,输出接口与二级从动直齿轮35相连,输出接口用于输出驱动力,输出接口可以为离合单元的第二接合部23。
输出接口和二级从动直齿轮35均为中空的环形。
第一接合部21、第二接合部23及二级从动直齿轮35采用中空形状是为了方便走线、减重,而且扭矩输入端和输出端不是在同一轴线上,空心轴加上传动系统就可以将输入输出轴处理成平行轴方向,有利于结构的空间规划,提供更大的设计余量。
一级主动蜗杆32固连于电机轴,一端由电机伸出另一端由外壳结构限位。一级从动直齿轮33和二级主动蜗杆34固定在同一轴上,因空间限制,两端没有使用轴承而是有肩的轴套37n,内有润滑。二级从动直齿轮35也是由外壳结构限位,一段与输出结构实现一体,另一端有端面轴承承载。轴套37n和端面轴承都减小了转动过程的摩擦损失,减少了摩擦生热。
二级从动直齿轮35可以为空心齿轮,一方面可以减轻整个驱动单元30的重量,另一 方面便于装配。
如图3和图12、图13所示,驱动单元30的壳体包括:壳身37a、机壳后盖37c、机壳上盖37d、机壳前盖37f。
动力源31、一级主动蜗杆32、一级从动直齿轮33、二级主动蜗杆34均安装于壳身37a,二级从动直齿轮35安装于机壳上盖37d,一级从动直齿轮33和二级主动蜗杆34固定在同一轴上,一级从动直齿轮33和二级主动蜗杆34同轴设置。
如图12所示,壳身37a为塑胶件,机壳上盖37d为金属件。可以理解的是,壳身37a主要承载的是高速级部件,设置塑胶件有利于减震;机壳上盖37d主要承载的是低速级部件且一体成型的方式加工。
在另一些实施例中,参考图13,壳身37a和机壳上盖37d可以为一体件。
机壳后盖37c与壳身37a相连,以封闭壳身37a的后端,机壳上盖37d与壳身37a相连,机壳前盖37f与壳身37a相连,以封闭壳身37a的前端。机壳后盖37c、机壳上盖37d、机壳前盖37f与壳身37a之间可以通过卡接结构以及螺纹紧固件相连。
驱动单元30在整个系统中,壳体是会受到冲击载荷作用的,第二接合部23在转动时受到轴向正压力和周向扭矩的作用,会传递给壳体。所以为了保证驱动单元30的稳定,除了各部件之间有螺钉、卡扣连接外,也将驱动单元30与执行机构100中的底座50通过螺钉紧固,用以增大驱动单元30的强度,提高其使用寿命。
驱动单元30的壳体具有轴向限位部,二级从动直齿轮35背离显示终端200的端面抵压轴向限位部,二级从动直齿轮35背离第二接合部23的端面抵压轴向限位部。具体地,机壳上盖37d可以具有用于对二级从动直齿轮35的端面限位的轴向限位部37g,这样在二级从动直齿轮35的一个端面与第二接合部23相连,二级从动直齿轮35的另一个端面与机壳上盖37d抵压,保证二级从动直齿轮35的轴向定位,防止二级从动直齿轮35与二级主动蜗杆34打齿。
二级从动直齿轮35通过齿轮端面轴承36抵压轴向限位部37g,齿轮端面轴承36可以为止推轴承,这样可以降低二级从动直齿轮35与驱动单元30的壳体之间的摩擦力,减小扭矩损失。在另一种结构中,可以在机壳上盖37d设环状槽位用于装配齿轮端面轴承36。
二级从动直齿轮35背离第二接合部23的端面可以设有环形槽,齿轮端面轴承36设于环形槽内,且齿轮端面轴承36抵压环形槽的底壁,轴向限位部37g的至少一部分伸入环形槽。在一些实施例中,,轴向限位部37g可以设有深沟状,轴向限位部37g的一个端面抵压弹性件端面轴承41,轴向限位部37g的另一个端面抵压齿轮端面轴承36,齿轮端面轴承36也在二级从动直齿轮35的环形槽内,弹性件40的至少一部分可以位于二级从动直齿轮35的环形槽内。这样可以缩短整个机构的轴向长度,节约了空间,使得整个机构的适用性 更加广泛。而且从结构力学角度来看,也提高了系统的刚度,使得其抗弯、抗扭能力得到加强。
如图3和图12所示,机壳上盖37d具有套筒37e,二级从动直齿轮35套设在套筒37e外,轴向限位部37g位于套筒37e的外周面。
如图1、图3、图19所示,驱动单元30的壳体具有径向保持机构,第二接合部23可相对转动地设在径向保持机构上以在径向上限位。径向保持机构用于限定至少部分旋转部件的径向偏置,防止执行机构100在运行过程中发生径向偏置,这样执行机构10在长期运行后依然可以保持稳定的运行。
在一些实施例中,驱动单元30的壳体安装于车身后保持不动,驱动单元30的壳体具有两个空套设置的外环和内环,径向保持机构包括外环和内环,外环套设在内外环,外环和内环限定出环形腔,第二接合部23的至少部分设于环形腔内,第二接合部23的至少部分套设在内环外,内环用于防止第二接合部23向径向内侧偏置,外环套设在第二接合部23的至少部分外,外环用于防止第二接合部23向径向外侧偏置。
在一些实施例中,如图19所示,驱动单元30的壳体包括:壳身37a、机壳上盖37d和机壳前盖37f,机壳上盖37d与壳身37a相连,且机壳上盖37d具有环形的套筒37e,机壳前盖37f与壳身37a的前端相连,且机壳前盖37f具有环形的限位环37p,限位环37p空套在套筒37e外以限定出环形腔,换言之,限位环37p的内径大于套筒37e的内径,环形腔位于限位环37p的内周壁与套筒37e的外周壁之间,第二接合部23的至少部分设于环形腔内。第二接合部23的至少部分套设在套筒37e外,套筒37e用于防止第二接合部23向径向内侧偏置,限位环37p套设在第二接合部23的至少部分外,限位环37p用于防止第二接合部23向径向外侧偏置。
驱动单元30的输出部包括环形的输出齿轮,输出齿轮可以为上述实施例所述的二级从动直齿轮35,输出齿轮与第二接合部23相连,输出齿轮套设在套筒37e外。如图19所示,第二接合部23包括用于与第一接合部21锁止的接合盘28和与接合盘28背离第一接合部21的一端相连的连接套26,连接套26与输出齿轮相连,且限位环37p套设于连接套26外。这样,输出齿轮的径向内外侧也分别被套筒37e和限位环37p限定,在工作过程中驱动单元30的输出端不易受到外界振动的影响,防止打齿。
径向保持机构还可以包括径向限位轴承(图中未示出),限位环37p与第二接合部23的至少部分之间设有径向限位轴承,比如限位环37p与连接套26之间可以设有径向限位轴承,这样径向限位轴承的内圈抵压连接套26,径向限位轴承的外圈抵压限位环37p,径向保持机构的径向限位更稳固。
安装单元包括:安装轴15,安装轴15贯通离合单元、驱动单元30,套筒37e套设在 安装轴15外,套筒37e可以在径向外侧对安装轴15进行限位,进而进一步增强转动盘13的径向稳定性。
本专利中驱动单元30可以采用行星轮系或者两级蜗杆、直齿轮传动系统,使系统具有以下优点:1)机构紧凑、体积小、重量轻;2)传动平稳、噪声低,传动比高、减速效果明显;3)布局灵活,便于走线。更适用整车机构空间紧凑、整车限重的要求,同时也可以给用户更好的驾乘体验;4)本专利中特有的到位锁止系统,可以将驱动单元30内部的传动系统与外部冲击进行有效隔绝,不仅可以避免因为传动系统内部齿隙等造成的显示终端200微颤回旋,提高系统稳定性及防抖、抗振能力,同时也可以避免外界冲击对传动系统的损伤,提高系统可靠性及寿命;5)本公开主要用于显示终端200的旋转机构;同样适用于其他有旋转要求的电子产品;6)前文有介绍各部件在轴向方向被安装轴15连接,一连串部件下来会产生误差叠加(生产误差,装配误差),通过弹簧压紧可以很大程度上销隙,以减小误差;其它改进的措施是缩短轴向配合尺寸,从机芯结构上找到适当位置,设计沟槽将弹簧等部件缩进机芯,减短整个机构轴向长度,以减小尺寸链误差;7)轴向长度减小,整个系统的刚度也随之提升,那么系统在受到外力加载时,抗弯、抗扭的能力更好,不易变形或损坏;8)另一方面,轴向长度变短除了刚度增加以外,整体稳定性也有提升,晃动量得到改善;9)本方案着重实现了自动手动一体旋转机构的模块化设计,除与外部结构配合的安装支架11、底座50,其余部件形成一个完整模块,可适用于任何一款车型甚至其他有旋转功能需求的产品中。具有如同标准件一样的可互换性和可通用性,极大提升了产品的适用范围,可用于实际生产使用。
可以理解的是,自动旋转通过旋转到位时的过电保护锁止;手动旋转则通过离合单元的锁止槽25和锁止凸起27进行90°旋转行程的控制。
功能实现原理:
1)执行机构100在自动模式下的传递路线:由驱动单元30开始,将电机的输出扭矩进行减速增扭,本方案通过减速器实现,通过其自身输出端的第二接合部23传递至第一接合部21,第一接合部21通过周向的多个锁止槽25(通过旋转盘13对应的凸台结构)传递扭矩给旋转盘13,带动旋转盘13实现平面旋转,从而带动固连其上的安装支架11、显示终端200进行平面旋转,当旋转90°时,旋转盘13上的限位槽14到达尽头,被驱动单元30上的定位销限位,电机堵转,电流增大,控制系统检测到堵转信号且显示终端200内置的陀螺仪传递出到位信号,控制系统识别出到位,并对电机进行断电处理,动力系统传递中断,系统到位锁止。
2)旋转系统在手动模式下的传递路线:在自动模式时,第二接合部23、05第一接合 部21相对静止一起转动,但是在手动模式下由于机芯内部的蜗轮直齿轮具有自锁功能,第二接合部23被锁紧固定。于是只有第一接合部21跟随旋转盘13、安装支架11和显示终端200整体旋转。扭矩传递路线由人手转动显示终端200开始,经由安装支架11到旋转盘13再到第一接合部21。此时通过第一接合部21、第二接合部23的特殊结构实现手动模式下的锁紧功能。
3)到位锁止及防护系统:此旋转机构系统自动模式下的到位锁止功能由弹性件40装配压缩变形提供正压力来保证;各部件接触面之间足够大的系统正压力,可以有效的隔绝来自底座50传递至系统的路面冲击对显示终端200的影响,从而对传动系统进行有效的保护,进一步提高了系统的可靠性。
自动模式旋转盘13的一端使用轴向限位件42形成挡墙压紧弹性件40,另一端是盘体,类似于轴肩的作用,共同实现轴向多个部件的锁紧作用,该设计可以有效的防止因为驱动单元30中齿隙存在而导致的显示终端200微颤回旋,避免其引起的视觉停留现象,同时防止了振动冲击中微颤打齿造成的传动系统破坏风险,从而保证了系统的防抖、抗振性能。
而手动模式通过离合单元和旋转盘13与驱动单元上的定位机构实现90°旋转行程的有效锁止和避免虚位。第二接合部23设置有6个锁止槽25,3个一组,两组之间相距角度稍大于90°,而第一接合部21设有3个锁止凸起27,可与第二接合部23的两组锁止槽25在旋转行程的两个端点分别适配。且锁止槽25、锁止凸起27截面为圆弧状,既能实现明确定位又能兼顾较好的手感。锁止槽25稍大于锁止凸起27以预留适当的预压角,可以避免因制造公差产生的卡不到位现象,降低对离合单元、位置精度要求,可以避免生产误差产生的间隙引起的部件晃动、不稳。在第二接合部23的端面设有油槽24,极大改善了第一接合部21、第二接合部23相对转动时的摩擦状态,提升了零部件的寿命,也一定程度上改善了用户手动转动时的手感。
由上述介绍,手动模式的关键部件是第一接合部21、第二接合部23,自动模式则是这两个部件暂时紧固成一体,由驱动单元30输出自动动力实现自动旋转。本方案的突出特点就是具备手动、自动两个工作模式,通过设计合理的力矩阀值区分开,结构上则是将手动模式的关键部件第二接合部23做成驱动单元30的输出端实现两个模式共存的。
4)为提高客户的驾乘体验,本系统显示终端200以极缓慢的转速进行旋转(约为6~10r/min),这就要求驱动单元30具有较大的传动比,约1500~2000左右。可以根据具体结构布局选择行星轮系减速器或者两级蜗杆直齿轮的双蜗杆减速系统,整体转轴设计为中空结构,方便锁止系统的设计。
5)本旋转系统通过内嵌限流电路板,当检测到超过设定阀值的电流后,对电机进行断电处理,从而实现系统的安全防夹及过载保护。
6)到位及异常位置控制:系统90°到位或者显示终端200遇外部阻力而造成防夹指示启动,均是依靠电流上升,超过驱动单元30的限流电路板的设计阀值时,系统对电机进行断电处理,来实现,在电机断电后,控制系统会依据显示终端200内置陀螺仪传递的信号,来判断显示终端200是否处于异常位,若陀螺仪所传信号表明显示终端200处于横屏位或者竖屏位置则表示电机断电为到位断电,反之则判定显示终端200处于异常位,判定电机断电为异常遇阻断电,则出现警示画面,提醒客户进行异物排查,当阻力消失后,再依据客户选择重新启动归位。异常位判定包括在自动运行状态下的手动操作,实际的异常位反馈处理可根据客户要求定义来设计软件功能,此方案的限位锁止结构在物理层面上可充分适应不同的软件功能定义(关于异常位置的控制)。
7)旋转盘13、安装轴15进行中空设计便于走线,使得屏后线束走线合理、美观,出线口有较大圆角,也是为了防止割线。
8)此系统为定中心旋转系统,即旋转过程中旋转中心始终保持不变,因此可以通过采用统一接口的安装支架11,来实现多尺寸终端间的匹配、兼容。从而提高了产品的通用性、节约成本、方便品控。
9)该系统显示终端200悬浮于中控,可以使得仪表台面更加整洁,美观。
本专利涉及一种显示终端200的执行机构100可以实现显示终端200手动、自动旋转,该执行机构100可以实现以下功能:1)显示终端200在横、竖屏两种状态间的自动切换;2)为增强用户的体验,提供手动、自动两种旋转模式;3)旋转到位后的自动定位锁止;4)系统的防抖、抗振;5)系统过载保护及安全防夹;6)多尺寸终端匹配兼容,适配性强。
需要说明的是,上述关于安装单元、离合单元、驱动单元30的各个实施例在不相悖的情况的下可以相互结合以形成更多个有关于执行机构100的实施例。
本公开还公开了一种本公开还公开了一种车辆1000。
如图20所示,本公开实施例的车辆1000包括:显示终端200、如上述任一种的执行机构100,显示终端200安装于执行机构100的安装单元,执行机构100安装于车体,比如驱动单元30的壳体可以通过底座50安装于车体,显示终端200的转动轴线可以为X向(前后方向),显示终端200可以为车载式显示终端,比如安装于仪表板上的显示面板。
这样,本公开实施例的车辆的显示终端200可以进行多角度使用,比如可以通过手动或自动的方式在横竖屏之间切换。
一种用于调节显示终端的执行机构,包括:转动盘,所述转动盘用于安装显示终端;离合单元,所述离合单元的第一接合部与所述转动盘连接,所述离合单元的第二接合部与所述第一接合部接合且具有多个接合位置;驱动单元,所述驱动单元的输出端与所述第二接合部连接;安装轴,所述安装轴与所述转动盘可枢转地连接,且在轴向上限位,所述安 装轴贯通所述离合单元、所述驱动单元;其中所述第一接合部和第二接合部常相互锁止,所述安装单元被构造成可被手动转动以带动第一接合部相对于第二接合部可转动地在多个接合位置之间切换。
在一些实施例中,所述安装轴具有沿径向向外翻折的翻边,所述翻边的一个端面与所述转动盘在轴向上限位。
在一些实施例中,用于调节显示终端的执行机构还包括:安装轴轴承,所述翻边通过所述安装轴轴承抵压所述转动盘。
在一些实施例中,所述转动盘的端面与内周壁之间设有台阶面,所述安装轴轴承的单侧具有L形截面,所述安装轴轴承套设在所述安装轴外,且所述安装轴轴承的翻折边的两个端面分别抵压所述台阶面和所述翻边。
在一些实施例中,所述安装轴与所述离合单元、所述驱动单元在径向上间隙配合。
在一些实施例中,在一些实施例中,位于所述驱动单元的壳体之外。
在一些实施例中,所述离合单元至少部分位于所述安装单元之内。
在一些实施例中,所述转动盘朝向所述第一接合部的一端具有第一凹槽,所述第一接合部至少部分位于所述第一凹槽内。
在一些实施例中,所述第二接合部至少部分位于所述第一凹槽内。
在一些实施例中,所述转动盘与所述第一接合部一体成型。
在一些实施例中,所述驱动单元的壳体具有径向保持机构,所述第二接合部可相对转动地设在所述径向保持机构上以在径向上限位。
在一些实施例中,所述驱动单元的壳体具有两个空套设置的外环和内环,所述径向保持机构包括所述外环和所述内环,所述外环和所述内环限定出环形腔,所述第二接合部的至少部分设于所述环形腔内。
在一些实施例中,所述驱动单元的壳体包括:壳身、机壳上盖和机壳前盖,所述机壳上盖与所述壳身相连且具有环形的套筒,所述机壳前盖与所述壳身的前端相连且具有环形的限位环,所述限位环空套在所述套筒外以限定出环形腔,所述第二接合部的至少部分设于所述环形腔内。
在一些实施例中,所述限位环与所述第二接合部的所述至少部分之间设有径向限位轴承。
在一些实施例中,所述驱动单元的输出部包括环形的输出齿轮,所述输出齿轮与所述第二接合部相连,所述输出齿轮套设在所述套筒外。
在一些实施例中,所述第二接合部包括用于与所述第一接合部锁止的接合盘和与所述接合盘背离所述第一接合部的一端相连的连接套,所述连接套与所述输出齿轮相连,且所 述限位环套设于所述连接套外。
在一些实施例中,所述安装单元包括:安装轴,所述安装轴贯通所述离合单元、所述驱动单元,所述套筒套设在所述安装轴外。
在一些实施例中,所述安装轴可相对转动地设在所述径向保持机构内以在径向上限位。
在一些实施例中,在改变接合位置时,所述第二接合部与所述驱动单元在轴向上保持相对静止,所述第一接合部在轴向上朝背离所述第二接合部的方向运动。
在一些实施例中,所述第一接合部与所述第二接合部相对设置的端面上形成多个所述接合位置。
在一些实施例中,所述第一接合部、所述第二接合部的端面相对设置,且朝向彼此的两个所述端面中的一个具有多个锁止槽,另一个具有至少一个锁止凸起,每个所述锁止凸起适于与至少两个所述锁止槽咬合以使所述第二接合部与所述第一接合部至少适于在两个所述接合位置接合。
在一些实施例中,所述第一接合部被构造成所述转动盘朝向所述第二接合部的端面,所述锁止凸起形成在所述端面。
在一些实施例中,所述锁止凸起与所述转动盘可拆卸地相连。
在一些实施例中,所述锁止槽和所述锁止凸起均具有弧形截面。
在一些实施例中,所述第一接合部、所述第二接合部均为圆环形,且所述锁止槽和所述锁止凸起均为与所述第一接合部或所述第二接合部同心的扇环形。
在一些实施例中,所述锁止凸起的至少一侧抵压于所述锁止槽的对应侧以使所述锁止凸起与所述锁止槽咬合。
在一些实施例中,所述锁止槽的宽度从敞开端到底部逐渐变小,所述锁止凸起的宽度从根部到顶端逐渐变小,所述锁止槽敞开端的宽度小于所述锁止凸起根部的宽度。
在一些实施例中,所述锁止槽的深度小于所述锁止凸起的高度。
在一些实施例中,所述锁止槽、所述锁止凸起的数目相同,且均沿周向均匀间隔开布置。
在一些实施例中,所述锁止槽、所述锁止凸起均至少为三个。
在一些实施例中,所述锁止槽与所述锁止凸起在周向上间隙配合。
在一些实施例中,所述锁止槽敞开端的宽度大于所述锁止凸起根部的宽度。
在一些实施例中,所述锁止槽的深度大于所述锁止凸起的高度。
在一些实施例中,所述锁止槽包括多组,不同组所述锁止槽沿周向交错设置,所述第一接合部和所述第二接合部在其中一个接合位置时,所述锁止凸起与其中一组的所述锁止槽一一对应。
在一些实施例中,其中两组的所述锁止槽中相互对应的两个所述锁止槽的轴线的夹角为90°。
在一些实施例中,还包括:弹性件,所述弹性件套设在所述安装轴外,且所述弹性件的一端抵压固定于所述安装轴的轴向限位件,另一端抵压所述驱动单元的壳体,以使所述驱动单元、所述离合单元、所述转动盘顺次压紧,所述弹性件的弹性预紧力用于使所述第二接合部与所述第一接合部接合。
在一些实施例中,所述弹性件的所述另一端通过弹性件端面轴承抵压所述驱动单元的壳体。
在一些实施例中,所述驱动单元的壳体与所述转动盘上设有配对的定位机构,以使所述显示终端转动目标角度。
在一些实施例中,所述目标角度为90°。
在一些实施例中,所述驱动单元的壳体设有两个沿周向间隔开的限位止口,所述转动盘设有朝向所述驱动单元的壳体伸出的定位销,所述定位销适于抵压所述限位止口,所述定位机构包括所述限位止口和所述定位销。
在一些实施例中,所述转动盘设有圆弧形的限位槽,所述驱动单元的壳体安装有朝向所述限位槽伸出的定位销,所述定位销适于抵压所述限位槽的端部,所述定位机构包括所述限位槽和所述定位销。
在一些实施例中,所述驱动单元包括:动力源和减速器,所述动力源的输出轴与所述减速器的输入端相连,所述减速器的输出端与所述第二接合部相连。
在一些实施例中,所述减速器为一级或多级传动机构。
在一些实施例中,所述减速器为蜗杆齿轮传动机构。
在一些实施例中,所述减速器包括与所述动力源相连的主动蜗杆和与所述主动蜗杆相连的从动直齿轮。
在一些实施例中,所述减速器包括:一级主动蜗杆,所述一级主动蜗杆与所述动力源的输出轴连接;一级从动直齿轮,所述一级主动蜗杆与所述一级从动直齿轮啮合,所述一级从动直齿轮与所述第二接合部相连。
在一些实施例中,所述一级主动蜗杆的轴线与所述一级从动直齿轮的轴线的夹角为锐角。
在一些实施例中,所述一级主动蜗杆的轴线与所述一级从动直齿轮的轴线的夹角为α,满足:82°≤α≤88°。
在一些实施例中,所述减速器包括:一级主动蜗杆,所述一级主动蜗杆与所述动力源的输出轴连接;一级从动直齿轮,所述一级主动蜗杆与所述一级从动直齿轮啮合;二级主 动蜗杆,所述二级主动蜗杆与所述一级从动直齿轮同轴设置;二级从动直齿轮,所述二级从动直齿轮与所述二级主动蜗杆啮合,所述二级从动直齿轮与所述第二接合部相连。
在一些实施例中,所述一级主动蜗杆的轴线与所述一级从动直齿轮的轴线的夹角、所述二级主动蜗杆的轴线与所述二级从动直齿轮的轴线的夹角均为锐角。
在一些实施例中,所述一级主动蜗杆的轴线与所述一级从动直齿轮的轴线的夹角为α,所述二级主动蜗杆的轴线与所述二级从动直齿轮的轴线夹角为β,满足:82°≤α≤88°,82°≤β≤88°。
在一些实施例中,所述一级主动蜗杆的轴线、所述二级从动直齿轮的轴线、所述离合单元的轴线平行。
在一些实施例中,所述驱动单元的壳体具有轴向限位部,所述二级从动直齿轮背离所述第二接合部的端面抵压所述轴向限位部。
在一些实施例中,所述一级从动直齿轮为塑胶件,所述一级主动蜗杆、二级主动蜗杆、二级从动直齿轮为金属件。
在一些实施例中,所述二级从动直齿轮与所述第二接合部形成为一体。
在一些实施例中,所述驱动单元包括:壳身;动力源,所述动力源安装于所述壳身;减速器,所述减速器与所述动力源相连;机壳上盖,所述机壳上盖与所述壳身相连,所述减速器的输出齿轮安装于所述机壳上盖,所述机壳上盖具有用于对所述输出齿轮的端面限位的轴向限位部的一侧,所述弹性件的所述另一端抵压所述轴肩的另一侧。
在一些实施例中,所述壳身为塑胶件,所述机壳上盖为金属件。
在一些实施例中,所述输出齿轮通过齿轮端面轴承抵压所述轴向限位部。
在一些实施例中,所述机壳上盖具有套筒,所述输出齿轮套设在所述套筒外,所述轴套筒套设在所述安装轴外,且与所述安装轴间隙配合。
一种车辆,包括:显示终端和如上述任一种所述的执行机构,所述执行机构安装于车体,所述显示终端安装于所述执行机构的所述安装单元。
在本说明书的描述中,参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本公开的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不一定指的是相同的实施例或示例。而且,描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本公开的实施例,本领域的普通技术人员可以理解:在不脱离本公开的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型,本公开的范围由权利要求及其等同物限定。

Claims (20)

  1. 一种用于调节显示终端的执行机构,其特征在于,包括:
    转动盘,所述转动盘用于安装显示终端;
    离合单元,所述离合单元的第一接合部与所述转动盘连接,所述离合单元的第二接合部与所述第一接合部接合且具有多个接合位置;
    驱动单元,所述驱动单元的输出端与所述第二接合部连接;
    安装轴,所述安装轴与所述转动盘可枢转地连接,且在轴向上限位,所述安装轴贯通所述离合单元、所述驱动单元;其中
    所述第一接合部和第二接合部常相互锁止,所述安装单元被构造成可被手动转动以带动第一接合部相对于第二接合部可转动地在多个接合位置之间切换。
  2. 根据权利要求1所述的用于调节显示终端的执行机构,其特征在于,所述安装轴具有沿径向向外翻折的翻边,所述翻边的一个端面与所述转动盘在轴向上限位。
  3. 根据权利要求2所述的用于调节显示终端的执行机构,其特征在于,还包括:安装轴轴承,所述翻边通过所述安装轴轴承抵压所述转动盘,所述转动盘的端面与所述转动盘的内周壁之间设有台阶面,所述安装轴轴承的单侧具有L形截面,所述安装轴轴承套设在所述安装轴外,且所述安装轴轴承的翻折边的两个端面分别抵压所述台阶面和所述翻边。
  4. 根据权利要求1-3中任一项所述的用于调节显示终端的执行机构,其特征在于,所述安装轴与所述离合单元、所述驱动单元在径向上间隙配合。
  5. 根据权利要求1-4中任一项所述的用于调节显示终端的执行机构,其特征在于,所述离合单元位于所述驱动单元的壳体之外;所述离合单元至少部分位于所述安装单元之内。
  6. 根据权利要求5所述的用于调节显示终端的执行机构,其特征在于,所述转动盘朝向所述第一接合部的一端具有第一凹槽,所述第一接合部至少部分位于所述第一凹槽内;所述第二接合部至少部分位于所述第一凹槽内。
  7. 根据权利要求1-6中任一项所述的用于调节显示终端的执行机构,其特征在于,所述驱动单元的壳体具有径向保持机构,所述第二接合部可相对转动地设在所述径向保持机构上以在径向上限位,所述安装轴可相对转动地设在所述径向保持机构内以在径向上限位。
  8. 根据权利要求7所述的用于调节显示终端的执行机构,其特征在于,所述驱动单元的壳体包括:壳身、机壳上盖和机壳前盖,所述机壳上盖与所述壳身相连,且所述机壳上盖具有环形的套筒,所述机壳前盖与所述壳身的前端相连,且所述机壳前盖具有环形的限位环,所述限位环空套在所述套筒外以限定出环形腔,所述第二接合部的至少部分设于所述环形腔内。
  9. 根据权利要求8所述的用于调节显示终端的执行机构,其特征在于,所述驱动单元的输出端包括环形输出齿轮,所述输出齿轮与所述第二接合部相连,所述输出齿轮套设在所述套筒外。
  10. 根据权利要求9所述的用于调节显示终端的执行机构,其特征在于,所述第二接合部包括用于与所述第一接合部锁止的接合盘和与所述接合盘背离所述第一接合部的一端相连的连接套,所述连接套与所述输出齿轮相连,且所述限位环套设于所述连接套外。
  11. 根据权利要求1-10中任一项所述的用于调节显示终端的执行机构,其特征在于,在改变接合位置时,所述第二接合部与所述驱动单元在轴向上保持相对静止,所述第一接合部在轴向上朝背离所述第二接合部的方向运动。
  12. 根据权利要求1-11中任一项所述的用于调节显示终端的执行机构,其特征在于,所述第一接合部、所述第二接合部的端面相对设置,且朝向彼此的两个所述端面中的一个具有多个锁止槽,另一个具有至少一个锁止凸起,每个所述锁止凸起适于与至少两个所述锁止槽咬合以使所述第二接合部与所述第一接合部至少适于在两个所述接合位置接合。
  13. 根据权利要求12所述的用于调节显示终端的执行机构,其特征在于,所述第一接合部被构造成所述转动盘朝向所述第二接合部的端面,所述锁止凸起形成在所述端面,所述锁止槽和所述锁止凸起均具有弧形截面。
  14. 根据权利要求12或13所述的用于调节显示终端的执行机构,其特征在于,所述锁止凸起的至少一侧抵压于所述锁止槽的对应侧以使所述锁止凸起与所述锁止槽咬合;所述锁止槽的宽度从敞开端到底部逐渐变小,所述锁止凸起的宽度从根部到顶端逐渐变小,所述锁止槽敞开端的宽度小于所述锁止凸起根部的宽度;所述锁止槽的深度小于所述锁止凸起的高度。
  15. 根据权利要求14所述的用于调节显示终端的执行机构,其特征在于,所述锁止槽与所述锁止凸起在周向上间隙配合,所述锁止槽包括多组,不同组所述锁止槽沿周向交错设置,所述第一接合部和所述第二接合部在其中一个接合位置时,所述锁止凸起与其中一组的所述锁止槽一一对应;
    所述锁止槽敞开端的宽度大于所述锁止凸起根部的宽度;
    所述锁止槽的深度大于所述锁止凸起的高度。
  16. 根据权利要求1-15中任一项所述的用于调节显示终端的执行机构,其特征在于,还包括:弹性件,所述弹性件套设在所述安装轴外,且所述弹性件的一端抵压固定于所述安装轴的轴向限位件,另一端抵压所述驱动单元的壳体,以使所述驱动单元、所述离合单元、所述转动盘顺次压紧,所述弹性件的弹性预紧力用于使所述第二接合部与所述第一接合部接合。
  17. 根据权利要求16所述的用于调节显示终端的执行机构,其特征在于,所述驱动单元的壳体与所述转动盘上设有配对的定位机构,以使所述显示终端转动目标角度,
    所述驱动单元的壳体设有两个沿周向间隔开的限位止口,所述转动盘设有朝向所述驱动单元的壳体伸出的定位销,所述定位销适于抵压所述限位止口,所述定位机构包括所述限位止口和所述定位销;
    或者,所述转动盘设有圆弧形的限位槽,所述驱动单元的壳体安装有朝向所述限位槽伸出的定位销,所述定位销适于抵压所述限位槽的端部,所述定位机构包括所述限位槽和所述定位销。
  18. 根据权利要求1-17中任一项所述的用于调节显示终端的执行机构,其特征在于,所述驱动单元包括:动力源和减速器,所述动力源的输出轴与所述减速器的输入端相连,所述减速器的输出端与所述第二接合部相连,所述减速器包括:
    一级主动蜗杆,所述一级主动蜗杆与所述动力源的输出轴连接;
    一级从动直齿轮,所述一级主动蜗杆与所述一级从动直齿轮啮合;
    二级主动蜗杆,所述二级主动蜗杆与所述一级从动直齿轮同轴设置;
    二级从动直齿轮,所述二级从动直齿轮与所述二级主动蜗杆啮合,所述二级从动直齿轮与所述第二接合部相连;
    所述一级主动蜗杆的轴线与所述一级从动直齿轮的轴线的夹角、所述二级主动蜗杆的轴线与所述二级从动直齿轮的轴线的夹角均为锐角。
  19. 根据权利要求1-18中任一项所述的用于调节显示终端的执行机构,其特征在于,所述驱动单元包括:
    壳身;
    动力源,所述动力源安装于所述壳身;
    减速器,所述减速器与所述动力源相连;
    机壳上盖,所述机壳上盖与所述壳身相连,所述减速器的输出齿轮安装于所述机壳上盖,所述机壳上盖具有用于对所述输出齿轮的端面限位的轴向限位部的一侧,所述弹性件的所述另一端抵压所述轴肩的另一侧,
    所述机壳上盖具有套筒,所述输出齿轮套设在所述套筒外,所述套筒套设在所述安装轴外,且与所述安装轴间隙配合。
  20. 一种车辆,其特征在于,包括:显示终端和如权利要求1-19中任一项所述的执行机构,所述执行机构安装于车体,所述显示终端安装于所述执行机构的所述安装单元。
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