WO2019154227A1 - 用于显示终端的旋转机构以及车辆 - Google Patents

用于显示终端的旋转机构以及车辆 Download PDF

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Publication number
WO2019154227A1
WO2019154227A1 PCT/CN2019/073954 CN2019073954W WO2019154227A1 WO 2019154227 A1 WO2019154227 A1 WO 2019154227A1 CN 2019073954 W CN2019073954 W CN 2019073954W WO 2019154227 A1 WO2019154227 A1 WO 2019154227A1
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WO
WIPO (PCT)
Prior art keywords
mounting
display terminal
unit
casing
terminal according
Prior art date
Application number
PCT/CN2019/073954
Other languages
English (en)
French (fr)
Inventor
罗忠良
崔超
杨海珊
赵伟冰
白胜
Original Assignee
比亚迪股份有限公司
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
Priority claimed from CN201820253755.6U external-priority patent/CN208515511U/zh
Priority claimed from CN201810142915.4A external-priority patent/CN110143171A/zh
Application filed by 比亚迪股份有限公司 filed Critical 比亚迪股份有限公司
Priority to EP19751260.1A priority Critical patent/EP3750753A4/en
Priority to US16/969,097 priority patent/US11427135B2/en
Publication of WO2019154227A1 publication Critical patent/WO2019154227A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • B60R11/0229—Arrangements 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
    • B60R11/0235—Arrangements 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 of flat type, e.g. LCD
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/22—Display screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/50—Instruments characterised by their means of attachment to or integration in the vehicle
    • B60K35/53—Movable instruments, e.g. slidable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
    • B60R2011/008—Adjustable or movable supports
    • B60R2011/0085—Adjustable or movable supports with adjustment by rotation in their operational position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
    • B60R2011/008—Adjustable or movable supports
    • B60R2011/0092—Adjustable or movable supports with motorization

Definitions

  • the present application relates to the field of vehicle technology, and in particular to a rotating mechanism for a display terminal and a vehicle.
  • the present application aims to solve at least one of the technical problems in the related art to some extent.
  • the present application proposes a rotation mechanism for a display terminal, which can realize automatic rotation of the display terminal, thereby enabling the display terminal to rotate at an arbitrary angle or a preset angle on a plane where the display screen is located.
  • the present application also proposes a vehicle having the rotating mechanism.
  • a rotation mechanism for a display terminal includes: a mounting unit, a clutch unit, and a driving unit, the mounting unit is configured to mount a display terminal; the clutch unit includes a first engaging portion and a second engaging portion, the An engagement portion is coupled to the mounting unit; the drive unit has a power output member that outputs torque, the power output member is detachably coupled to the second engagement portion and transmits torque, the first engagement portion
  • the second joint is dynamically coupled to the second joint.
  • the rotating mechanism can realize automatic rotation of the display terminal, thereby enabling the display terminal to rotate at an arbitrary angle or a preset angle on the plane where the display screen is located.
  • FIG. 1 is a schematic diagram of a rotation mechanism, a display terminal, and a fixing bracket for a display terminal according to an embodiment of the present application;
  • FIG. 2 is a perspective view of a three-dimensional splitting of a rotating mechanism, a display terminal, and a fixing bracket for a display terminal according to an embodiment of the present application;
  • FIG. 3 is a cross-sectional view of a susceptor for a rotation mechanism of a display terminal according to an embodiment of the present application
  • FIG. 4 is a rear elevational view of a base for a rotating mechanism of a display terminal in accordance with an embodiment of the present application
  • FIG. 5 is a perspective view of a driving unit for a rotating mechanism of a display terminal according to an embodiment of the present application.
  • FIG. 6 is a front elevational view of a drive unit for a rotation mechanism of a display terminal according to an embodiment of the present application
  • FIG. 7 is a cross-sectional view of a driving unit for a rotation mechanism of a display terminal according to an embodiment of the present application.
  • FIG. 8 is a perspective view of a mounting unit for a rotating mechanism of a display terminal according to an embodiment of the present application.
  • FIG. 9 is a rear elevational view of a mounting unit for a rotating mechanism of a display terminal according to an embodiment of the present application.
  • FIG. 10 is a cross-sectional view of a mounting unit for a rotation mechanism of a display terminal according to an embodiment of the present application
  • FIG. 11 is a perspective exploded view of a driving unit for a rotating mechanism of a display terminal according to an embodiment of the present application
  • FIG. 12 is a schematic diagram of a display terminal and a fixing bracket for a rotation mechanism of a display terminal according to another embodiment of the present application.
  • FIG. 13 is a schematic illustration of a vehicle in accordance with the present application.
  • a rotation mechanism 100 for the display terminal 300 will be described in detail below with reference to FIGS. 1 through 13.
  • a rotating mechanism 100 for a display terminal 300 includes a base 20, a mounting unit 10, a driving unit 30, and a mounting shaft 41.
  • the base 20 is used for fixing to the vehicle body, and the mounting unit 10 is used for mounting the display terminal 300.
  • the mounting unit 10 can be fixedly connected to the display terminal 300 through a connection bracket 400 disposed on the display terminal 300.
  • the connection bracket 400 can be integrated.
  • the rear surface of the display terminal 300 can also be detachably connected to the display terminal 300.
  • the connection bracket 400 and the mounting unit 10 can be matched by a uniform interface, so that display terminals 300 of different models or different sizes can be unified.
  • the interface is connected to the mounting unit 10, so that the mounting unit 10 has better versatility and wider application range.
  • the mounting unit 10 has a first engaging portion 11 that is axially sandwiched between the base 20 and the mounting unit 10, the drive unit 30 has a power output member that can output torque, and the power output member has a second engaging portion 334a
  • the mounting shaft is pivotally disposed on the base 20, and the mounting shaft is coupled to the mounting unit 10 and axially abuts and mechanically coupled to the first engaging portion 11 and the second engaging portion 334a.
  • first joint portion 11 and the second joint portion 334a are coupled to each other, which means that the connection manner between the first joint portion 11 and the second joint portion 334a can satisfy the requirement that the torque is stably transmitted between the two. . That is to say, during the operation of the driving unit 30, the first engaging portion 11 and the second engaging portion 334a are always kept relatively stationary.
  • the rotating mechanism can realize automatic rotation of the display terminal, thereby enabling the display terminal to rotate at an arbitrary angle or a preset angle on the plane where the display screen is located, and the rotating mechanism realizes modularity, versatility and convenient disassembly. Installed.
  • the clutch unit is at least partially located within the mounting unit 10.
  • at least a portion of the first engaging portion 11 or the second engaging portion 334a as described in the above embodiment is located in the rotating disk 16, which can significantly reduce the axial length of the rotating mechanism 100 as a whole, and the arrangement is more compact and more compact.
  • the first engaging portion 11 may be splined or integrally formed with the rotating disk 16 as described in the above embodiments, and in other alternative embodiments, the first engaging portion 11 is configured to rotate the disk 16 toward the second
  • the end surface of the engaging portion 334a, that is, the first locking tooth 111 is formed at the end surface, that is, the disk surface of the first engaging portion 11 is omitted, so that the entire rotating mechanism 100 is light in weight.
  • the first lock tooth 111 may be integrally formed on the end surface of the rotary disk 16 toward the second joint portion 334a, or the lock tooth may be detachably coupled to the rotary disk 16, which facilitates the structure of the rotary disk 16 to be simpler and easier to mold.
  • the rotating disk 16 has a first groove 18 facing one end of the first engaging portion 11 of the clutch unit, and the first engaging portion 11 is at least partially located in the first groove 18 to shorten the axial distance of the entire rotating mechanism 100, preferably, As shown, the entire first engaging portion 11 is located in the first recess 18, the second engaging portion 334a of the clutch unit is at least partially located in the first recess 18, and further, the entire second engaging portion 334a is located in the first recess In the groove 18 to further shorten the axial distance of the entire rotating mechanism 100, the overall axial length of the rotating mechanism 100 is short, the arrangement is more compact and reasonable, and the connection is tighter.
  • the rotary disk 16 can also be integrally formed with the first joint portion 11, which can reduce the number of parts to be assembled and reduce the assembly process.
  • the rotating mechanism 100 further includes a base 20 provided between the base 20 and the mounting unit 10, the mounting unit 10 being pivotally coupled to the drive unit 30 and the base At least one of the seats 20.
  • the driving unit 30 operates and rotates the power output member to drive the first engaging portion 11 and the second engaging portion 334a to rotate synchronously, thereby driving the mounting unit 10 to rotate synchronously to achieve
  • the display terminal fixedly connected to the mounting unit 10 is rotated at an arbitrary angle of the plane on which the display screen is located or rotated at a predetermined angle.
  • the mounting unit 10 includes a rotating disk 16 and a mounting shaft 41 coupled to the rotating disk 16 that is pivotally mounted to the drive unit 30 and the base 20 by a mounting shaft 41.
  • the mounting unit 10 and the driving unit 30 are integrated onto the base 20 by the mounting shaft.
  • the base, the mounting unit and the driving unit are connected in series by the mounting shaft, thereby realizing modularization of the rotating mechanism and having better versatility.
  • the driving unit 30 is disposed in the base 20, and the mounting shaft 41 sequentially passes through the base 20 and the driving unit 30 to be connected to the rotating disk 16.
  • the three are connected in series and a certain positive pressure is maintained between the units so that the torque of the power output member can be stably transmitted to the mounting unit 10 via the first joint portion 11 and the second joint portion 334a.
  • a person skilled in the art can set a target rotation angle of the rotation of the display terminal 300 as needed. Specifically, when the target rotation angle is 90 degrees, the driving motor 32 can drive the display terminal 300 to rotate 90 degrees and perform the display terminal 300 after being in place.
  • the locking mechanism can be additionally provided with a locking mechanism, and the locking function can be integrated on the driving unit 30.
  • the electric mounting shaft adopts a transmission mechanism with a self-locking function, so that the display terminal 300 can be automatically rotated to provide better viewing and viewing for the user.
  • Enjoy and drive or ride can be used to set.
  • the driving unit 30 may be embedded in the base 20, and the mounting shaft includes a mounting shaft 41 that sequentially passes through the base 20, the driving unit 30, and is inserted into the mounting unit 10 to It is engaged with the mounting unit 10.
  • the mounting shaft 41 is sequentially inserted into the mounting unit 10 through the base 20 and the driving unit 30, so that the mounting unit 10 and the driving unit 30 can be quickly integrated on the base 20, which is more convenient for disassembly and assembly, and significant saving. The installation time of the product.
  • the mounting shaft 41 has a plurality of circumferentially extending latching projections 411.
  • the base 20 and the power output member each have a plurality of slots b through which the plurality of latching projections 411 pass.
  • the mounting unit 10 has mounting holes. a, the inner wall of the mounting hole a has a plurality of guiding slots 12 and a plurality of locking slots 13 connected to the ends of the guiding slots 12, and a limiting protrusion 14 is provided at the transition of the locking slot 13 and the guiding slot 12, and the engaging convex portion The portion 411 is caught between the locking groove 13 and the limiting convex portion 14.
  • the engaging projection 411 protrudes outwardly from the cylindrical side wall of the mounting shaft 41.
  • Each of the engaging projections 411 is substantially trapezoidal, and the base 20 and the power output member also have a cylindrical side wall for the snap-fit shaft portion.
  • the through holes are provided with a trapezoidal slot b through which the card engaging projections 411 pass.
  • the guiding groove 12 provides guiding for the insertion of the engaging convex portion 411, and the limiting convex portion 14 circumferentially limits the engaging convex portion 411 in the locking convex portion 411 entering the locking groove 13 so that the mounting shaft 41 is at When the mounting unit 10 is rotated, it can be stably fixed with the mounting unit 10 at all times.
  • the engaging convex portion 411 of the mounting shaft 41 sequentially passes through the base 20 and the slot b of the power output member, and then the engaging convex portion 411 enters the guiding groove 12 and slides along the guiding groove 12 when the engaging convex portion 411
  • the mounting shaft 41 is rotated toward the direction of the locking groove 13 so that the engaging projection 411 enters the locking groove 13 and slides along the locking groove 13 until it moves to the end of the locking groove 13, at this time limit.
  • the position convex portion 14 and the lock groove 13 collectively limit the engagement convex portion 411.
  • the guide groove 12 extends in the axial direction of the mounting hole a
  • the locking groove 13 extends in the circumferential direction of the mounting hole a
  • each of the locking groove 13 and the guide The slots 12 are connected one by one and form an L shape. Therefore, when the mounting shaft 41 is mounted, quick mounting can be achieved by first inserting and then twisting, and the structure of the locking groove 13 is convenient for processing and production.
  • the mounting shaft and the first engaging portion 11 may be integrally formed. It can be understood by those skilled in the art that the mounting shaft 41 is not limited to being connected to the mounting unit 10 in the above manner, and the mounting shaft 41 can be connected to the mounting unit 10 by other clamping methods or other detachable mounting methods.
  • an elastic buffer structure may be provided in the rotating mechanism 100.
  • the rotating mechanism 100 further includes an elastic member 42.
  • One end of the mounting shaft 41 is coupled to the mounting unit 10 and the other end has a stopping portion 412.
  • the elastic member 42 is jacketed on the mounting shaft 41 and abuts against the stopping portion 412. Between the end faces of the base 20.
  • the elastic member 42 is disposed to maintain a sufficient positive pressure between the first engaging portion 11 and the second engaging portion 334a and the transmission mechanism of the driving unit 30 itself to reduce the existence of the backlash of the transmission mechanism in the driving unit 30.
  • the micro-warping rotation of the display terminal 300 during the driving process reduces the risk of damage of the transmission system caused by blurring of the image quality and the vibration of the micro-vibration, thereby ensuring the anti-shake and anti-vibration performance of the transmission mechanism.
  • the present application is not limited thereto, and the method for obtaining the positive pressure is not limited to the above connection manner, and the mounting shaft 41 may also adopt one end shoulder limit, and one end is realized by riveting, shaft retaining ring or nut tightening.
  • the base 20 has a mounting groove 23, and the driving unit 30 is embedded in the mounting groove 23 and one end is abutted against the bottom of the mounting groove 23.
  • the mounting groove 23 has a escaping for the mounting shaft 41 to pass through.
  • the through hole 232 has an end portion of the casing 31 having a positioning shaft portion 25 that surrounds the relief through hole 232.
  • the elastic member 42 is abutted against the end surface of the base 20 by the end face bearing 34 that is fitted over the positioning shaft portion 25.
  • the resilient member 42 can be a compression spring, in which case the positioning shaft portion 25 can function as a spring seat to provide a central positioning for the resilient member 42.
  • the addition of the end face bearing 34 between the spring and the contact end face of the base 20 not only improves the axial load carrying capacity of the rotating mechanism 100, but also reduces the friction torque loss of the end face of the spring and the base 20.
  • the casing can provide support for the pivoting of the power output member, that is, the casing also has a hollow sleeve, the power output member is pivotally mounted on the hollow sleeve, and the mounting shaft is pivotally sleeved. Inside the hollow bushing.
  • the mounting shaft 41 is a hollow shaft, and the mounting shaft 41, the driving unit 30, and the mounting unit 10 collectively constitute a hollow hollow structure. In this way, the distributed distribution of the rotating mechanism 100 can be concentrated in the hollow structure to make the circuit arrangement more beautiful and safe.
  • the mounting unit 10 has a limiting post 15
  • the base 20 has a limiting slot 26 .
  • the limiting post 15 is slidably disposed in the limiting slot 26 and is adapted to cooperate with the two ends of the limiting slot 26 .
  • the in-position locking function can be implemented in combination with the electronic control unit.
  • the system can detect the stall signal and the gyroscope built in the display terminal 300 transmits the in-position signal, the control system recognizes the in-position, and performs power-off processing on the drive motor 32, the power system transmits the interrupt, and the system is locked in place.
  • the driving unit 30 includes a casing 31, a driving motor 32, and a speed reducer 33.
  • the driving motor 32 is disposed in the casing 31, and the driving motor 32 has an output shaft;
  • the speed reducer 33 is at least a first-stage transmission mechanism and At least a worm spur gear mechanism is included.
  • the worm spur gear mechanism includes an intermeshing worm and a spur gear.
  • the worm is directly or indirectly connected to an output shaft of the drive motor 32.
  • the second joint portion 334a is formed on the spur gear and extends out of the casing. 31 outside.
  • the drive motor 32 is a rotary drive motor 32, the output shaft is a rotatable drive motor 32 shaft capable of outputting torque, at least one of the speed reducer 33 and the drive motor 32 has a self-locking function, and the speed reducer 33 can be a first-stage transmission mechanism. It can also be a secondary transmission mechanism and a three-stage transmission mechanism, and the transmission mechanism includes at least a worm straight tooth transmission mechanism.
  • the speed reducer 33 when the speed reducer 33 is a two-stage transmission mechanism, the speed reducer 33 may be composed of a worm helical gear transmission mechanism and a worm spur gear transmission mechanism, and the worm helical gear transmission mechanism includes a first-level meshing mechanism.
  • the worm 331 and the first helical gear 332, the worm straight gear transmission mechanism includes an intermeshing secondary worm 333 and a secondary spur gear 334.
  • the primary worm 331 is coupled to the output shaft of the drive motor 32, and the secondary worm 333 is inclined to the first stage.
  • the gears 332 are coaxially disposed and fixedly coupled, and the secondary spur gears 334 are formed as power output members.
  • the display terminal 300 needs to be rotated at a very slow rotational speed of about 6-10 r/min, which requires the speed reducer 33 to have a large gear ratio of about 10-2000.
  • the use of the above worm straight tooth transmission mechanism has the following advantages: compact structure, small volume, light weight; stable transmission, low noise, high transmission ratio and remarkable deceleration effect.
  • the driving unit 30 of the present application is not limited to the electric driving mode, and may be a driving method such as pneumatic, hydraulic or magnetic driving.
  • the speed reducer 33 is not limited to the transmission mechanism mentioned in the above specific embodiment, and may also include a planetary gear. Transmission mechanism, bevel gear transmission mechanism, etc.
  • the casing 31 includes a casing 311 and a casing front cover 312.
  • the casing 311 is used to mount the driving motor 32 and the speed reducer 33.
  • the casing front cover 312 is at the front end of the casing 311 and the casing 311.
  • the spur gear is axially sandwiched between the casing 311 and the casing front cover 312, and the first engaging portion 11 projects forwardly outside the casing front cover 312.
  • the casing front cover 312 can provide an axial limit for the spur gear; and when the reducer 33 needs to be inspected, the casing front cover 312 can be removed to observe the meshing of the spur gear and the worm or can be directly replaced. Gears for easy disassembly.
  • the casing 31 of the drive unit 30 has a radial retaining mechanism, and the second engaging portion 334a 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 mechanism to prevent radial rotation of the rotating mechanism 100 during operation so that the rotating mechanism 100 can maintain stable operation after long term operation.
  • the casing 31 of the driving unit 30 is held behind the vehicle body, and the casing 31 of the driving unit 30 has two outer rings and inner rings which are disposed in an empty sleeve, and the radial holding mechanism includes An outer ring and an inner ring, the outer ring is sleeved outside the inner ring, the outer ring and the inner ring define an annular cavity, at least part of the second engaging portion 334a is disposed in the annular cavity, and at least a portion of the second engaging portion 334a is sleeved Outside the inner ring, the inner ring is for preventing the second engaging portion 334a from being radially inwardly biased, the outer ring is sleeved outside at least a portion of the second engaging portion 334a, and the outer ring is for preventing the second engaging portion 334a from being radially outward Offset.
  • the casing 31 of the driving unit 30 includes a casing 311, a casing rear cover 313 and a casing front cover 312, the casing rear cover 313 is connected to the casing 311, and the casing rear cover 313 has an annular second shaft portion 313a.
  • the front cover 312 is connected to the front end of the shell 311, and the front cover 312 has an annular retaining ring 312a.
  • the retaining ring 312a is sleeved outside the second shaft portion 313a to define an annular cavity. At least a portion of the portion 334a is disposed within the annular cavity.
  • the second engaging portion 334a is sleeved outside the second shaft portion 313a, the second shaft portion 313a is for preventing the second engaging portion 334a from being biased radially inward, and the limiting ring 312a is sleeved on the second engaging portion 334a.
  • the retaining ring 312a serves to prevent the second engaging portion 334a from being biased radially outward.
  • an inner ring may be formed on the mounting unit.
  • the casing 31 of the driving unit 30 includes a casing 311 and a casing front cover 312.
  • the casing front cover 312 is connected to the front end of the casing 311, and the casing front cover 312 has an annular limiting ring 312a.
  • the unit 10 has a mounting shaft 41 that passes through the housing, the retaining ring 312a is sleeved over the mounting shaft 41 to define an annular cavity, and at least a portion of the second engaging portion 334a is disposed within the annular cavity.
  • At least a portion of the second engaging portion 334a is sleeved outside the mounting shaft 41, the mounting shaft 41 is for preventing the second engaging portion 334a from being biased radially inward, and the limiting ring 312a is sleeved at least outside the second engaging portion 334a
  • the limit ring 312a serves to prevent the second engaging portion 334a from being biased outward in the radial direction.
  • the power output member of the driving unit 30 includes an annular output gear, and the output gear may be the secondary driven spur gear of the above embodiment, the output gear is connected to the second engaging portion 334a, and the output gear is sleeved outside the second shaft portion 313a.
  • the second joint portion 334a includes a joint disc a1 for locking with the second joint portion 334a and a joint sleeve a2 connected to one end of the joint disc a1 away from the second joint portion 334a, and the joint sleeve a2 is connected to the output gear, and is limited
  • the bit ring 312a is sleeved outside the connecting sleeve a2.
  • the radially inner and outer sides of the output gear are also respectively defined by the second shaft portion 313a and the limit ring 312a.
  • 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 limit bearing not shown in the figure, and the radial limit bearing is disposed between the retaining ring and at least a portion of the second engaging portion 334a, such as between the limiting ring and the connecting sleeve.
  • the radial limit bearing is arranged such that the inner ring of the radial limit bearing presses against the connecting sleeve, and the outer ring of the radial limit bearing presses the limit ring, and the radial limit of the radial retaining mechanism is more stable.
  • the first engaging portion 11 is formed as a plurality of first locking teeth that are circumferentially evenly distributed on the end surface of the mounting unit 10, and the second engaging portion 334a is formed as a plurality of end faces along the power output member
  • the circumferentially uniform second locking teeth, the plurality of first locking teeth and the plurality of second locking teeth are circumferentially distributed and locked in the circumferential direction.
  • the first locking tooth cooperates with the second locking tooth to achieve torque transmission of the power output member to the mounting unit 10.
  • the first locking tooth 11118 and the second locking tooth 3341 are both trapezoidal, and the two flank sides of the first locking tooth 111 and the second locking tooth 3341 are gradually approached from the root to the tooth tip. Specifically, the respective two flank sides of each of the first locking teeth 111 and the second locking teeth 3341 are inclined surfaces that are close to each other and symmetrically distributed. Thus, the first locking teeth 111 and the second locking teeth 3341 are trapezoidal teeth, which reduces the slippage of the first engaging portion 11 and the first engaging portion 11 caused by excessive torque, and enhances the stability of power transmission. The switching of the electric control display terminal 300 is smoother.
  • the mounting unit 10 has a first recess 18 into which the second engaging portion 334a is inserted, and the first engaging portion 11 includes a plurality of disposed in the first recess 18.
  • the second engaging portion 334a includes a plurality of key grooves on the outer side wall of the power output member, and the key groove and the key teeth form a spline connection. Therefore, when the driving unit 30 is in operation, the output torque is directly transmitted to the mounting unit 10 via the second engaging portion 334a and the first engaging portion 11, so that the power output member drives the mounting unit 10 to rotate synchronously, thus realizing the display terminal screen. Automatic rotation.
  • the mounting shaft 41 may be a rotating shaft integrated on the mounting unit 10, and the mounting shaft 41 passes through the driving unit 30.
  • the axial limit is determined by the limit retaining ring 60.
  • the limit retaining ring 60 catches the mounting shaft 41 and a spring can be disposed between the limiting retaining ring 60 and the end of the base 20.
  • the drive unit 30 includes a drive motor 32 and a speed reducer 33.
  • the output shaft of the drive motor 32 is connected to the speed reducer 33, and the power output member of the speed reducer 33 has a second joint portion 334a.
  • 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 angle between the axis of the active worm and the axis of the driven spur gear is an acute angle.
  • 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 worm gear spur gear transmission, thereby avoiding the problem of poor machining performance of the worm wheel.
  • the speed reducer 33 is a primary transmission mechanism, and the speed reducer 33 includes: a primary worm 331 and a primary gear 332.
  • the primary worm 331 is fixedly coupled to the output shaft of the drive motor 32, and the primary worm 331 is The primary gear 332 is engaged, and the angle between the axis of the primary worm 331 and the axis of the primary gear 332 is an acute angle.
  • the angle between the axis L1 of the primary worm 331 and the axis L2 of the primary gear 332 is ⁇ , which satisfies: 82° ⁇ ⁇ ⁇ 88°.
  • the magnitude of ⁇ is determined according to the helix angle of the primary worm 331. That is to say, the primary worm 331 and the primary gear 332 are not arranged vertically, so that the meshing state of the primary worm 331 and the primary gear 332 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 worm gear spur gear transmission, thereby avoiding the problem of poor machining performance of the worm wheel.
  • the secondary transmission mechanism includes a primary worm 331, a primary gear 332, a secondary worm 333, and a secondary spur gear 334.
  • the output shaft of the driving motor 32 is fixedly connected to the first stage worm 331 , and the first stage worm 331 can be integrated outside the output shaft of the driving motor 32 .
  • the first stage worm 331 is meshed with the primary gear 332.
  • the angle between the axis of the primary worm 331 and the axis of the primary gear 332 is an acute angle
  • the magnitude of ⁇ is determined according to the helix angle of the primary worm 331.
  • the primary worm 331 and the primary gear 332 are not arranged vertically, so that the meshing state of the primary worm 331 and the primary gear 332 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 worm gear spur gear transmission, thereby avoiding the problem of poor machining performance of the worm wheel.
  • the secondary worm 333 is disposed coaxially with the primary gear 332, the secondary worm 333 and the primary gear 332 are axially spaced apart, the secondary worm 333 and the primary gear 332 can be integrally processed, or the primary gear 332 can pass through the flower
  • the key is connected to the secondary worm 333.
  • the secondary spur gear 334 meshes with the secondary worm 333.
  • the secondary worm 333 and the secondary spur gear 334 are not arranged vertically, so that the meshing state of the secondary worm 333 and the secondary spur gear 334 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 worm gear spur gear transmission, thereby avoiding the problem of poor machining performance of the worm wheel.
  • the axis of the primary worm 331 and the axis of the secondary spur gear 334 are parallel.
  • the axis of the output shaft of the drive motor 32 is parallel and spaced apart from the axis of the secondary spur gear 334. Thereby, it is possible to realize that the arrangement direction of the drive motor 32 is parallel to the output direction of the drive unit 30, which is convenient for assembly design.
  • 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 gear 332 transmits the high speed rotation of the first stage worm 331 to the secondary worm 333.
  • the primary gear 332 can be a plastic part, a primary worm 331 , a secondary worm 333, and a secondary spur gear.
  • 334 is a metal piece.
  • the secondary spur gear 334 is coupled to the first engaging portion 11 to achieve a power output, such as the secondary spur gear 334 being integrally formed with the first engaging portion 11 according to the functional requirements of the secondary spur gear 334 and the first engaging portion 11,
  • the two may be made of different materials, the secondary spur gear 334 is made of a wear resistant material, and the first joint portion 11 is made of a self-lubricating material.
  • the movement adopts planetary gear train or two-stage worm and helical gear transmission system, so that the rotating mechanism 100 has the following advantages: 1) compact mechanism, small size and light weight; 2) stable transmission and low noise; 3) flexible layout Easy to route. It is more suitable for the compact space of the vehicle body and the weight limit of the whole vehicle, and it can also give the user a better driving experience.
  • the in-position locking system unique to the present application can effectively isolate the internal transmission system of the movement from the external impact, thereby not only avoiding the micro-whirl of the display screen caused by the internal backlash of the transmission system, thereby improving system stability and prevention. Shaking and anti-vibration ability can also avoid damage to the transmission system caused by external impact and improve system reliability and life.
  • a rotary mechanism 100 for a display screen in accordance with an embodiment of the present application is described below with reference to FIG.
  • the display screen may be a touch screen capable of human-computer interaction.
  • the connecting bracket 400 behind the display screen can be fixedly connected with the rotating disc 16 (that is, the mounting unit 10 in the above embodiment) by a buckle and two screws; the mounting shaft 41 sequentially rotates the disc. 16.
  • the movement (drive unit 30), the base 20, the spring (i.e., the elastic member 42), and the end bearing 34 are connected in series, and are restrained by the snap connection with the rotary disk 16 and the shoulder of the mounting shaft 41 itself.
  • the axial length of the system maintains a certain positive pressure between the components connected in series to achieve system locking.
  • the axial limit of each component is realized, and the method of obtaining positive pressure can also adopt one end shoulder in addition to the solution.
  • the rotating disk 16 and the movement are connected and twisted by the surface teeth; the movement between the movement and the base 20 is restricted by the shoulder and the rib position, and the pressure is fixed by the positive pressure between the two.
  • Other fixing methods fix the two; the end bearing 34 is added between the end faces of the spring contacting the base 20 to improve the axial bearing capacity of the system, and the friction torque of the contact end surface of the spring and the base 20 can be reduced during operation. loss.
  • the rear end of the rotating disc 16 is provided with a limiting post 15 , and the end surface of the base 20 is designed with a 90° avoidance track (ie, the limiting slot 26 ), and the two cooperate to realize the 90° in-position locking.
  • Rotating system power transmission route the movement, after the output torque of the driving motor 32 is decelerated and twisted, the torque is transmitted to the rotating disk 16 through the face gear of its own power output member, and the rotating disk 16 is driven to realize the plane rotation, thereby
  • the connecting bracket 400 and the display screen are fixedly rotated, and when rotated by 90°, the limiting post 15 at the rear of the rotating disc 16 runs to the end of the rail, the driving motor 32 is blocked, the current is increased, and the control system detects When the signal is blocked and the gyroscope built in the display screen transmits the in-position signal, the control system recognizes the in-position and performs power-off processing on the driving motor 32, the power system transmits the interruption, and the system is locked in place;
  • In-position locking and protection system The in-position locking of the system is ensured by the positive pressure of the 07 spring through the 08 end bearing 34 applied to the movement and the two-toothed end face of the rotating disc 16; the tooth contact surfaces are sufficiently large
  • the positive pressure of the system can effectively isolate the impact of the road surface transmitted to the system through the base 20 on the display screen, and at the same time can be isolated because the customer's accidental operation (excessive pushing, pulling and other external impact) is transmitted to the transmission through the display screen.
  • the system resulting in transmission failure, effectively protects the drive system, further improving the reliability of the system.
  • the system does not utilize the self-locking performance of the worm and the helical gear inside the movement to realize the locking, and the locking system is separately designed.
  • This design can effectively prevent the display from vibrating due to the existence of the backlash in the movement.
  • the resulting image quality is blurred, and the risk of transmission system damage caused by micro-vibration and toothing in the vibration shock ensures the anti-shake and anti-vibration performance of the system.
  • the display of the system rotates at a very slow speed (about 6 ⁇ 10r/min), which requires the movement to have a large transmission ratio of about 300-600.
  • the planetary gear reducer 33 or the double-worm reducer of the two-stage worm helical gear can be selected according to the specific structural layout, and is designed as a hollow structure to facilitate the design of the locking system.
  • the rotating system is embedded with the current limiting circuit board 35.
  • the driving motor 32 is powered off, thereby implementing the system safety against pinching and overload protection.
  • In-position and abnormal position control when the system rotates into position or the display screen encounters external resistance and causes the anti-pinch indication to start, both rely on the current rise, exceed the threshold of the current limiting small plate design, and the system performs power-off treatment on the drive motor 32 to realize After the drive motor 32 is powered off, the control system will judge whether the display is in an abnormal position according to the signal transmitted by the built-in gyroscope of the display screen, and if the signal transmitted by the gyroscope indicates that the display screen is in the horizontal screen position or the vertical screen position, it indicates When the driving motor 32 is powered off, the power is turned off, otherwise the display screen is in an abnormal position, and it is determined that the driving motor 32 is powered off to be abnormally blocked. A warning screen appears to remind the customer to perform foreign object inspection. When the resistance disappears, the basis is further determined. The customer chooses to restart the homing.
  • the mounting shaft 41 is hollowed out to facilitate the routing, so that the wiring harness behind the screen is reasonable and beautiful.
  • This system is a centering rotation system, that is, the rotation center is always unchanged during the rotation process, so the connection bracket 400 of the unified interface can be used to achieve matching and compatibility between the multi-size terminals.
  • the rotating mechanism 100 of the display screen of the present application can realize the following functions: 1) automatic switching of the display screen between the two states of the horizontal and vertical screens, 2) automatic positioning and locking after the rotation is in place, and 3) prevention of the system Shake, anti-vibration, 4) system overload protection and safety anti-clamp, 5) multi-size terminal matching compatible, strong adaptability.
  • This application is mainly used for the rotating mechanism of the display screen; it is also applicable to other electronic products with rotating requirements.
  • a vehicle 1000 includes: a display terminal 300 and a mounting assembly of the above embodiment, the fixing bracket 200 is mounted on a vehicle body of the vehicle 1000, and the display terminal 300 is mounted to the rotating mechanism 100.
  • the automatic rotation has a stable and reliable in-position locking and anti-backlash system, which can effectively avoid the picture blur or vibration damage caused by the screen jitter caused by road surface impact during driving.
  • the display terminal 300 may be a multimedia, navigation, and display screen disposed inside the vehicle 1000.
  • the display terminal 300 is not limited to being integrated on the vehicle 1000 when the vehicle 1000 is shipped, or may not be shipped from the factory.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless otherwise explicitly stated and defined. Or in one piece; it may be a mechanical connection, or it may be an electrical connection or a communication with each other; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship between two elements. Unless otherwise expressly defined. For those skilled in the art, the specific meanings of the above terms in the present application can be understood on a case-by-case basis.
  • the first feature "on” or “below” the second feature may be the direct contact of the first and second features, or the first and second features are indirectly through the intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
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Abstract

提供了一种用于显示终端（300）的旋转机构（100）以及具有其的车辆（1000）。旋转机构（100）包括：安装单元（10）、离合单元以及驱动单元（30）。安装单元（10）用于安装显示终端（100）；离合单元包括第一接合部（11）和第二接合部（334a），第一接合部（11）与第二接合部（334a）动力耦合连接；第一接合部与安装单元连接；驱动单元（30）具有可输出扭矩的动力输出件，动力输出件与第二接合部可拆卸地相连且可传递扭矩。这种旋转机构可实现显示终端的自动旋转，进而能够实现显示终端在显示屏所在平面的任意角度转动或者预设角度转动。

Description

用于显示终端的旋转机构以及车辆
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02月11日提交的、名称为“用于显示终端的旋转机构以及具有其的车辆”的、中国专利申请号“201810142915.4、201820253755.6”的优先权。
技术领域
本申请涉及车辆技术领域，具体而言，涉及一种用于显示终端的旋转机构以及车辆。
背景技术
随着现代汽车在娱乐化、智能化上的要求不断提高，以及移动设备的日益普及，使得多媒体的功能、形式日趋丰富，可与手机、电脑互联、能与互联网连接的多功能、大尺寸触摸屏已成为未来发展的主流趋势，但目前触摸屏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、全屏显示，同时也不能够兼顾不同用户的个人使用习惯。
发明内容
本申请旨在至少在一定程度上解决相关技术中的技术问题之一。
为此，本申请提出一种用于显示终端的旋转机构，该旋转机构可实现显示终端的自动旋转，进而能够实现显示终端在显示屏所在的平面的任意角度转动或者预设角度转动。
本申请还提出了一种具有该旋转机构的车辆。
根据本申请的用于显示终端的旋转机构包括：安装单元、离合单元以及驱动单元，所述安装单元用于安装显示终端；所述离合单元包括第一接合部和第二接合部，所述第一接合部与所述安装单元连接；所述驱动单元具有可输出扭矩的动力输出件，所述动力输出件与所述第二接合部可拆卸地相连且可传递扭矩，所述第一接合部与所述第二接合部动力耦合连接。
由此，该旋转机构可实现显示终端的自动旋转，进而能够实现显示终端在显示屏所在的平面的任意角度转动或者预设角度转动。
本申请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，或通过本申请的实践了解到。
附图说明
图1是根据本申请一个实施例的用于显示终端的旋转机构、显示终端以及固定支架的示意图；
图2是根据本申请一个实施例的用于显示终端的旋转机构、显示终端以及固定支架的立体拆分示意图；
图3是根据本申请一个实施例的用于显示终端的旋转机构的基座的剖视图；
图4是根据本申请一个实施例的用于显示终端的旋转机构的基座的后视图；
图5是根据本申请一个实施例的用于显示终端的旋转机构的驱动单元的立体示意图；
图6是根据本申请一个实施例的用于显示终端的旋转机构的驱动单元的前视图；
图7是根据本申请一个实施例的用于显示终端的旋转机构的驱动单元的剖视图；
图8是根据本申请一个实施例的用于显示终端的旋转机构的安装单元的立体示意图；
图9是根据本申请一个实施例的用于显示终端的旋转机构的安装单元的后视图；
图10是根据本申请一个实施例的用于显示终端的旋转机构的安装单元的剖视图；
图11是根据本申请一个实施例的用于显示终端的旋转机构的驱动单元的立体拆分示意图；
图12是根据本申请另一个实施例的用于显示终端的旋转机构的、显示终端以及固定支架的示意图；和
图13是根据本申请的车辆的示意图。
具体实施方式
下面详细描述本申请的实施例，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，旨在用于解释本申请，而不能理解为对本申请的限制。
下面参照图1至图13详细描述根据本申请实施例的用于显示终端300的旋转机构100。
如图1和图2所示，根据本申请实施例的用于显示终端300的旋转机构100包括：基座20、安装单元10、驱动单元30以及安装轴41。
基座20用于与车体固定，安装单元10用于安装显示终端300，其中安装单元10可以通过设置在显示终端300上的连接支架400与所述显示终端300固定连接，连接支架400可以集成在显示终端300的背面，也可以可拆卸地连接在显示终端300上，连接支架400与安装单元10可以通过形状统一的接口进行配合，这样不同型号或不同尺寸的显示终端300均能够通过统一的接口连接在安装单元10上，这样安装单元10具有更 好的通用性、适用范围更广。
安装单元10具有第一接合部11，驱动单元30在轴向上夹在基座20和安装单元10之间，驱动单元30具有可输出扭矩的动力输出件，动力输出件具有第二接合部334a，安装轴可枢转地设于基座20上，且安装轴与安装单元10连接、并使第一接合部11与第二接合部334a在轴向上止抵且动力耦合连接。
需要说明的是，第一接合部11与第二接合部334a动力耦合连接，是指第一接合部11与第二接合部334a之间的连接方式能够满足扭矩在两者之间稳定传递的要求。也就是说，在驱动单元30工作过程中，第一接合部11与第二接合部334a始终保持相对不动。
由此，该旋转机构可实现显示终端的自动旋转，进而能够实现显示终端在显示屏所在的平面的任意角度转动或者预设角度转动,而且该旋转机构实现了模块化、通用性好、方便拆装。
离合单元至少部分位于安装单元10之内。比如如上述实施例所述的第一接合部11或第二接合部334a的至少部分位于旋转盘16内，这样可以显著降低旋转机构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11可以如上述实施例所述的与旋转盘16通过花键相连或者形成为一体，在另一些可选的实施例中，第一接合部11被构造成旋转盘16朝向第二接合部334a的端面，即第一锁止齿111形成在端面，也就是说，省去了第一接合部11的盘面，这样整个旋转机构100的质量轻。第一锁止齿111可以一体成型在旋转盘16朝向第二接合部334a的端面，或者锁止齿与旋转盘16可拆卸地相连，这样便于旋转盘16的结构更简单，便于成型。
旋转盘16朝向离合单元的第一接合部11的一端具有第一凹槽18，第一接合部11至少部分位于第一凹槽18内，以缩短整个旋转机构100的轴向距离，优选地，如图所示，整个第一接合部11位于第一凹槽18内，离合单元的第二接合部334a至少部分位于第一凹槽18内，进一步地，整个第二接合部334a位于第一凹槽18内以进一步缩短整个旋转机构100的轴向距离，旋转机构100的整体的轴向长度短，布置更紧凑合理且连接更紧密。
当然，旋转盘16也可以与第一接合部11一体成型，这样可以减少需要装配的零部件数目，减少装配工序。
旋转机构100还包括基座20，所述驱动单元30设于所述基座20和所述安装单元10之间，所述安装单元10可枢转地连接在所述驱动单元30和所述基座20的至少一个上。这样，当需要旋转切换显示终端300的屏幕角度时，驱动单元30工作并使动力输 出件转动以驱动第一接合部11和第二接合部334a同步转动，带动安装单元10同步转动，以实现与安装单元10固定连接的显示终端在显示屏所在的平面的任意角度转动或者预设角度转动。
在一些实施例中，安装单元10包括旋转盘16和与旋转盘16连接的安装轴41，旋转盘16通过安装轴41枢设在驱动单元30以及基座20上。由此，通过安装轴将安装单元10以及驱动单元30集成到基座20上。这样，基座、安装单元、驱动单元通过安装轴串联在一起，实现了旋转机构的模块化，具有更好的通用性。
为了缩短了整个旋转机构100的轴向长度，增强了整个机构的紧凑性，驱动单元30设在基座20内，安装轴41依次穿过基座20、驱动单元30以与旋转盘16连接，以使三者串联在一起并使各单元之间保持一定的正压力，以使动力输出件的扭矩能够经第一接合部11、第二接合部334a稳定传递给安装单元10。
本领域技术人员可以根据需要设置显示终端300转动的目标旋转角度，具体而言，当目标转动角度为90度时，驱动电机32可驱动显示终端300转动90度并在到位后对显示终端300进行锁止可以额外设置锁止机构，也可以将锁止功能集成在驱动单元30上，如电动安装轴采用具有自锁功能的传动机构，可以实现显示终端300自动旋转，为用户提供更好的视听享受以及驾驶或乘坐体验。
在图1所示的具体实施例中，驱动单元30可以嵌设在基座20内，安装轴包括安装轴41，安装轴41依次穿过基座20、驱动单元30并插入安装单元10内以与安装单元10卡接。此外，将安装轴41依次穿过基座20、驱动单元30后卡进安装单元10内就能实现安装单元10、驱动单元30在基座20上的快速集成，更方便拆装，同时显著节省了产品的安装时间。
安装轴41的一端具有多个沿周向均布的卡接凸部411，基座20、动力输出件均具有供多个卡接凸部411穿过的多个插槽b，安装单元10具有安装孔a，安装孔a的内壁具有多个导向槽12以及连接在导向槽12端部的多个锁止槽13，锁止槽13与导向槽12的过渡处设有限位凸部14，卡接凸部411卡在锁止槽13与限位凸部14之间。
卡接凸部411向外凸出安装轴41的圆柱形侧壁，每个卡接凸部411大体为梯形，基座20以及动力输出件也均具有供卡接轴部的圆柱形侧壁穿过的通孔，通孔内均设有梯形的供卡接凸部411穿过的插槽b。导向槽12为卡接凸部411的插接提供导向，限位凸部14在卡接凸部411进入锁止槽13内对卡接凸部411进行周向限位，以使安装轴41在安装单元10转动时能够与安装单元10始终保持稳定固定。
安装时，安装轴41的卡接凸部411依次穿过基座20和动力输出件的插槽b，之后卡接凸部411进入导向槽12并沿导向槽12滑动，当卡接凸部411沿轴向运动到位后， 朝向锁止槽13所在方向转动安装轴41以使卡接凸部411进入锁止槽13内并沿锁止槽13滑动直至运动到锁止槽13的末端，此时限位凸部14与锁止槽13共同对卡接凸部411进行限位。由此，采用上述简单紧凑的结构实现了安装轴41对基座20、安装单元10以及驱动单元30三者的集成。
在图8、图9和图10所示的具体实施例中，导向槽12沿安装孔a的轴向延伸、锁止槽13沿安装孔a的周向延伸，每个锁止槽13与导向槽12一一对应连接且构成L形。由此，在安装轴41安装时，采用先插接后扭转的方式就能实现快速安装，且锁止槽13的构造方便加工生产。
为了进一步增强安装轴与安装单元10连接的紧密性，安装轴与第一接合部11可以一体成型。本领域技术人员可以理解，安装轴41也不限于采用上述方式与安装单元10进行连接，安装轴41还可以采用其他卡接方式或者其它可拆卸的安装方式与安装单元10连接，
在图1和图2所示的实施例中，为了进一步改善显示终端300的防抖、抗振性能，可以在旋转机构100内设置弹性缓冲结构。具体而言，旋转机构100还包括弹性件42，安装轴41的一端与安装单元10连接且另一端具有止挡部412，弹性件42外套在安装轴41上且止抵在止挡部412与基座20的端面之间。
弹性件42的设置能够使第一接合部11与第二接合部334a之间、驱动单元30自身的传动机构均保持足够的正压力，以减少驱动单元30内的传动机构的齿隙存在而导致的显示终端300在行车过程中的微颤回旋，降低了画质模糊、及振动冲击中微颤打齿造成的传动系统破坏的风险，从而保证了传动机构的防抖、抗振性能。
不仅可以有效隔绝路面冲击通过基座20所传递至旋转机构100而对显示终端300带来的影响，而且可以隔绝因为客户的意外操作过度推、拉等外部冲击通过显示终端300传递至驱动单元30所造成的传动失效，对驱动单元30进行有效的防护，进一步提高了旋转机构100的可靠度。
当然，本申请并不限于此，获得正压力的方法不限于采用上述连接方式，安装轴41也可以采用一端轴肩限位，一端采用铆接、轴用挡圈或者螺母拧紧实现。
如图3和图4所示，基座20具有安装槽23，驱动单元30嵌设在安装槽23内且一端止抵在安装槽23的底部，安装槽23具有供安装轴41穿过的避让通孔232，机壳31的端部具有环绕在避让通孔232外的定位轴部25，弹性件42通过外套在定位轴部25上的端面轴承34与基座20的端面相止抵。具体地，弹性件42可以是压缩弹簧，此时定位轴部25能够起到弹簧座的作用，以为弹性件42提供中心定位。弹簧与基座20的接触端面之间增加端面轴承34，不仅能够提高旋转机构100的轴向承载能力，而且可 以减少弹簧与基座20接触端面的摩擦扭矩损失。
可以理解的是，机壳能够为动力输出件的枢转提供支撑，也就是说机壳还具有空心轴套，动力输出件可枢转地外套在空心轴套上，安装轴可枢转地内套在空心轴套内。
为方便显示终端300的线路布置，安装轴41为空心轴，安装轴41、驱动单元30、安装单元10共同构成中空的空心结构。这样，旋转机构100的的分布在外的线路可以集中在空心结构内，以使线路布置更美观、安全。
如图9所示，安装单元10具有限位柱15，基座20具有限位槽26，限位柱15可滑动地设于限位槽26内且适于与限位槽26的两端配合以对安装单元10进行行程限位。这样，可以结合电控部件实现到位锁止功能，当显示终端300旋转90°时，限位柱15运行至限位槽26的尽头，驱动单元30的驱动电机32堵转，电流增大，控制系统能够检测到堵转信号且显示终端300内置的陀螺仪传递出到位信号，控制系统识别出到位，并对驱动电机32进行断电处理，动力系统传递中断，系统到位锁止。
如图11所示，驱动单元30包括：机壳31、驱动电机32以及减速器33，驱动电机32设置在机壳31内,驱动电机32具有输出轴；减速器33至少为一级传动机构且至少包括蜗杆直齿传动机构，蜗杆直齿传动机构包括互相啮合的蜗杆和直齿轮，蜗杆直接或间接与驱动电机32的输出轴连接，第二接合部334a形成在直齿轮上且伸出机壳31外。
驱动电机32为旋转驱动电机32，输出轴为能够输出扭矩的可转动的驱动电机32轴，减速器33和驱动电机32中的至少一个具有自锁功能，减速器33可以是一级传动机构，也可以是二级传动机构、三级传动机构，传动机构至少包括蜗杆直齿传动机构。在图所示的具体实施例中，当减速器33是二级传动机构时，减速器33可以由蜗杆斜齿传动机构以及蜗杆直齿传动机构组成，蜗杆斜齿传动机构包括互相啮合的一级蜗杆331和一级斜齿轮332，蜗杆直齿传动机构包括互相啮合的二级蜗杆333和二级直齿轮334，一级蜗杆331与驱动电机32的输出轴连接，二级蜗杆333与一级斜齿轮332同轴设置且固定连接，二级直齿轮334形成为动力输出件。
显示终端300需要以极缓慢的转速进行旋转约为6-10r/min，这就要求减速器33具有较大的传动比，约10-2000左右。采用上述蜗杆直齿传动机构具有以下优点：结构紧凑、体积小、重量轻；且传动平稳、噪声低，传动比高、减速效果明显。
可以理解，本申请的驱动单元30不限于采用电动驱动方式，也可以是气动、液压或磁驱动等驱动方式，减速器33并不限于上述具体实施例提及的传动机构，还可以包括行星齿轮传动机构、锥齿轮传动机构等。
在一些实施例中，机壳31包括：壳身311、机壳前盖312，壳身311用于安装驱动电机32以及减速器33；机壳前盖312在壳身311的前端与壳身311连接，直齿轮在轴 向上夹在壳身311和机壳前盖312之间，第一接合部11向前伸出机壳前盖312外。
这样，机壳前盖312能够为直齿轮提供轴向限位；而且当需要对减速器33进行检修时，拆下机壳前盖312就能观察直齿轮与蜗杆的啮合情况或者可直接更换直齿轮，方便拆装。
如图5所示，驱动单元30的机壳31具有径向保持机构，第二接合部334a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机构的径向偏置，防止旋转机构100在运行过程中发生径向偏置，这样旋转机构100在长期运行后依然可以保持稳定的运行。
在图12所示的实施例中，驱动单元30的机壳31安装于车身后保持不动，驱动单元30的机壳31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，外环套设在内环外，外环和内环限定出环形腔，第二接合部334a的至少部分设于环形腔内，第二接合部334a的至少部分套设在内环外，内环用于防止第二接合部334a向径向内侧偏置，外环套设在第二接合部334a的至少部分外，外环用于防止第二接合部334a向径向外侧偏置。
驱动单元30的机壳31包括：壳身311、机壳后盖313和机壳前盖312，机壳后盖313与壳身311相连，且机壳后盖313具有环形的第二轴部313a，机壳前盖312与壳身311的前端相连，且机壳前盖312具有环形的限位环312a，限位环312a空套在第二轴部313a外以限定出环形腔，第二接合部334a的至少部分设于环形腔内。第二接合部334a的至少部分套设在第二轴部313a外，第二轴部313a用于防止第二接合部334a向径向内侧偏置，限位环312a套设在第二接合部334a的至少部分外，限位环312a用于防止第二接合部334a向径向外侧偏置。
当然，本申请并不限于此，在图11所示的实施例中，安装单元上还可以形成有内环。具体地，驱动单元30的机壳31包括：壳身311和机壳前盖312，机壳前盖312与壳身311的前端相连，且机壳前盖312具有环形的限位环312a，安装单元10具有穿过机壳的安装轴41，限位环312a空套在安装轴41外以限定出环形腔，第二接合部334a的至少部分设于环形腔内。第二接合部334a的至少部分套设在安装轴41外，安装轴41用于防止第二接合部334a向径向内侧偏置，限位环312a套设在第二接合部334a的至少部分外，限位环312a用于防止第二接合部334a向径向外侧偏置。
驱动单元30的动力输出件包括环形的输出齿轮，输出齿轮可以为上述实施例的二级从动直齿轮，输出齿轮与第二接合部334a相连，输出齿轮套设在第二轴部313a外。第二接合部334a包括及用于与第二接合部334a锁止的接合盘a1和与接合盘a1背离第二接合部334a的一端相连的连接套a2，连接套a2与输出齿轮相连，且限位环312a套 设于连接套a2外。这样，输出齿轮的径向内外侧也分别被第二轴部313a和限位环312a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，限位环与第二接合部334a的至少部分之间设有径向限位轴承，比如限位环与连接套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，径向限位轴承的外圈抵压限位环，径向保持机构的径向限位更稳固。
根据本申请的一些实施例，第一接合部11形成为多个在安装单元10的端面沿周向均布的第一锁止齿，第二接合部334a为形成为多个在动力输出件的端面沿周向均布的第二锁止齿，多个第一锁止齿与多个第二锁止齿在周向上交叉分布且在周向上相互锁止。由此，第一锁止齿与第二锁止齿共同配合以实现动力输出件向安装单元10的扭矩传递。
第一锁止齿11118和第二锁止齿3341均为梯形，且第一锁止齿111、第二锁止齿3341的两个齿侧自齿根向齿顶逐渐靠近。具体地，每个第一锁止齿111以及第二锁止齿3341的各自两个齿侧为互相靠近且对称分布的斜面。这样，第一锁止齿111和第二锁止齿3341均为梯形齿，减少了扭矩过大造成的第一接合部11与第一接合部11的滑脱，增强了动力传递的稳定性，使电动控制显示终端300的切换更平稳。
如图12所示，在本申请的另一个实施例中，安装单元10具有供第二接合部334a插入的第一凹槽18，第一接合部11包括多个设于第一凹槽18内的键齿，第二接合部334a包括多个位于动力输出件的外侧壁上的键槽，键槽与键齿构成花键连接。由此，驱动单元30工作时，输出的扭矩直接经第二接合部334a、第一接合部11传递到安装单元10，从而使动力输出件带动安装单元10同步转动，这样实现了显示终端屏幕的自动旋转。
为了实现了对安装单元10的轴向限位以及对驱动单元30的传动间隙进行消除，可采用以下结构：安装轴41可以为集成在安装单元10上的转轴，安装轴41穿过驱动单元30并通过限位挡圈60进行轴向限位，限位挡圈60箍住安装轴41且限位挡圈60与基座20的端部之间可以设有弹簧。
需要说明的是，上述关于安装单元10、安装轴、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旋转机构100的实施例。
下面描述本申请实施例的旋转机构100的驱动单元30的结构。
如图11所示，驱动单元30包括：驱动电机32和减速器33，驱动电机32的输出轴与减速器33相连，减速器33的动力输出件具有第二接合部334a。
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。
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L1与从动直齿轮的轴线L2的夹角为锐角为α，满足：82°≤α≤88°。进一步地，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蜗轮直齿轮传动，从而避免遇到蜗轮加工性能差的问题。
在一些实施例中，减速器33为一级传动机构，且减速器33包括：一级蜗杆331和一级齿轮332，一级蜗杆331与驱动电机32的输出轴固定连接，一级蜗杆331与一级齿轮332啮合，且一级蜗杆331的轴线与一级齿轮332的轴线的夹角为锐角。一级蜗杆331的轴线L1与一级齿轮332的轴线L2的夹角为α，满足：82°≤α≤88°。进一步地，84°≤α≤86°，比如α＝85°，α的大小根据一级蜗杆331的螺旋升角来定。也就是说，一级蜗杆331与一级齿轮332并非垂直布置，这样可以保证一级蜗杆331与一级齿轮332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蜗轮直齿轮传动，从而避免遇到蜗轮加工性能差的问题。
在另一些实施例中，如图所示，二级传动机构包括：一级蜗杆331、一级齿轮332、二级蜗杆333、二级直齿轮334。
其中，驱动电机32的输出轴与一级蜗杆331固定连接，一级蜗杆331可以集成于驱动电机32的输出轴外。
一级蜗杆331与一级齿轮332啮合，一级蜗杆331的轴线与一级齿轮332的轴线的夹角为锐角，一级蜗杆331的轴线L1与一级齿轮332的轴线L2的夹角α，满足：82°≤α≤88°，进一步地，84°≤α≤86°，比如α＝85°，α的大小根据一级蜗杆331的螺旋升角来定。也就是说，一级蜗杆331与一级齿轮332并非垂直布置，这样可以保证一级蜗杆331与一级齿轮332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蜗轮直齿轮传动，从而避免遇到蜗轮加工性能差的问题。
二级蜗杆333与一级齿轮332同轴设置，二级蜗杆333与一级齿轮332沿轴向间隔开设置，二级蜗杆333与一级齿轮332可以一体加工，或者一级齿轮332可以通过花键与二级蜗杆333相连。
二级直齿轮334与二级蜗杆333啮合。二级蜗杆333的轴线与二级直齿轮334的轴 线的夹角为锐角，二级蜗杆333的轴线L2与二级直齿轮334的轴线L3的夹角β，满足：82°≤β≤88°，进一步地，84°≤β≤86°，比如β＝85°，β的大小根据二级蜗杆333的螺旋升角来定。也就是说，二级蜗杆333与二级直齿轮334并非垂直布置，这样可以保证二级蜗杆333与二级直齿轮334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蜗轮直齿轮传动，从而避免遇到蜗轮加工性能差的问题。
一级蜗杆331的轴线、二级直齿轮334的轴线平行。驱动电机32的输出轴的轴线与二级直齿轮334的轴线平行且间隔开。从而可以实现驱动电机32的布置方向与驱动单元30的输出方向平行，便于装配设计。
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。
一级齿轮332将一级蜗杆331的高速转动传递给二级蜗杆333，为了降低传动过程中的震动，一级齿轮332可为塑胶件，一级蜗杆331、二级蜗杆333、二级直齿轮334为金属件。
二级直齿轮334与第一接合部11相连，从而实现动力输出，比如二级直齿轮334与第一接合部11形成为一体，根据二级直齿轮334与第一接合部11的功能需求，二者可采用不同材料制成，二级直齿轮334为耐磨材料制成，第一接合部11为自润滑材料制成。
本申请中机芯采用行星轮系或者两级蜗杆、斜齿轮传动系统，使旋转机构100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；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。且本申请中特有的到位锁止系统，可以将机芯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屏微颤回旋，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，提高系统可靠度及寿命。
下面参照图1描述根据本申请的一个具体实施例显示屏的旋转机构100。其中，该显示屏可以是能够进行人机互动的触摸屏。
如图1所示，显示屏后方的连接支架400可以与旋转盘16(也就是上述实施例中的安装单元10)之间通过卡扣及两个螺钉实现固连；安装轴41依次将旋转盘16、机芯(驱动单元30)、基座20、弹簧(也就是弹性件42)、端面轴承34串联在一起，通 过与旋转盘16的卡扣固连及安装轴41自身尾端的轴肩限制系统轴向长度，使串联起来的各组件间保持一定的正压力，实现系统锁紧，此处实现各元器件间轴向限位，获得正压力的方法除了本文方案外也可以采用一端轴肩限位，一端采用铆接、轴用挡圈或者螺母拧紧实现。旋转盘16与机芯之间通过端面齿进行连接、传扭；机芯与基座20之间通过轴肩、筋位限位并通过二者之间的正压力实现压紧固定，也可以采用其他固连方式将二者固连；弹簧与基座20接触的端面之间增加端面轴承34，提高系统的轴向承载能力的同时，可以在操作时减少弹簧与基座20接触端面的摩擦扭矩损失。旋转盘16后部设有限位柱15，基座20的端面对应位置设计有90°避空轨道(即限位槽26)，二者配合实现90°的到位锁止。
1)旋转系统动力传递路线：机芯，将驱动电机32的输出扭矩进行减速增扭后，通过其自身动力输出件的端面齿将扭矩传递至旋转盘16，带动旋转盘16实现平面旋转，从而带动固连其上的连接支架400、显示屏进行平面旋转，当旋转90°时，旋转盘16后部的限位柱15运行至轨道尽头，驱动电机32堵转，电流增大，控制系统检测到堵转信号且显示屏内置的陀螺仪传递出到位信号，控制系统识别出到位，并对驱动电机32进行断电处理，动力系统传递中断，系统到位锁止；
2)到位锁止及防护系统：本系统的到位锁止由07弹簧通过08端面轴承34施加给机芯及旋转盘16两齿式连接端面的正压力来保证；齿式接触面之间足够大的系统正压力，可以有效的隔绝通过基座20所传递至系统的路面冲击对显示屏的影响，也同时可以隔绝因为客户的意外操作(过度推、拉等外部冲击)通过显示屏传递至传动系统，从而造成的传动失效，对传动系统进行有效的防护，进一步提高了系统的可靠度。该系统未利用机芯内部通过蜗杆、斜齿轮的自锁性能，实现锁止，而单独设计锁止系统，该设计可以有效的防止因为机芯中齿隙存在而导致的显示屏微颤回旋，而引起的画质模糊，及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。
3)为考虑客户的驾乘体验，本系统显示屏以极缓慢的转速进行旋转(约为6～10r/min)，这就要求机芯具有较大的传动比，约300～600左右。可以根据具体结构布局选择行星轮系减速器33或者两级蜗杆斜齿轮的双蜗杆减速系统，设计为中空结构，方便锁止系统的设计。
4)本旋转系统通过内嵌限流电路板35，当检测到超过设定阀值的电流后，对驱动电机32进行断电处理，从而实现系统的安全防夹及过载保护。
5)到位及异常位置控制：系统旋转到位或者显示屏遇外部阻力而造成防夹指示启动，均是依靠电流上升，超过限流小板设计阀值，系统对驱动电机32进行断电处理来实现，在驱动电机32断电后，控制系统会依据显示屏内置陀螺仪传递的信号，来判断 显示屏是否处于异常位，若陀螺仪所传信号表明显示屏处于横屏位或者竖屏位置则表示驱动电机32断电为到位断电，反之则判定显示屏处于异常位，判定驱动电机32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。
6)安装轴41进行中空设计便于走线，使得屏后线束走线合理、美观。
7)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连接支架400，来实现多尺寸终端间的匹配、兼容。
8)该系统显示屏悬浮于中控，可以使得仪表台面更加整洁，美观。
本申请的显示屏的旋转机构100，该系统可以实现以下功能：1)显示屏在横、竖屏两种状态间的自动切换，2)旋转到位后的自动定位锁止，3)系统的防抖、抗振，4)系统过载保护及安全防夹，5)多尺寸终端匹配兼容，适配性强。
本申请主要用于显示屏的旋转机构；同样适用于其他有旋转要求的电子产品。
需要说明的是，上述关于安装单元10、安装轴、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旋转机构100的实施例。
如图13所示，根据本申请第二方面实施例的车辆1000包括：显示终端300以及上述实施例的安装总成，固定支架200安装于车辆1000的车体，显示终端300安装于旋转机构100的安装单元10。由此，车辆1000采用具备防抖、抗振、防夹、性能的调节显示终端300的旋转机构100，不仅可以实现屏横、竖屏之间的自动切换，为用户提供更好的操作体验及视听享受；同时自动旋转分别具备稳定、可靠的到位锁止、消隙系统，可以有效的避免行车过程中路面冲击引起的的屏幕抖动所造成的画面模糊或振动破坏。
需要说明的是，上述显示终端300可以是设置在车辆1000内部的多媒体、导航、显示屏，该显示终端300不限于在车辆1000出厂时就集成在车辆1000上，也可以是在出厂时并未设置在车辆1000的中控台上但可以应用并集成在车辆1000上的显示终端300。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征 可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接或彼此可通讯；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或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“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申请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必须针对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一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本申请的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本申请的限制，本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (20)

  1. 一种用于显示终端的旋转机构，其特征在于，包括：
    安装单元，所述安装单元用于安装显示终端；
    离合单元，所述离合单元包括第一接合部和第二接合部，所述第一接合部与所述安装单元连接；以及
    驱动单元，所述驱动单元具有可输出扭矩的动力输出件，所述动力输出件与所述第二接合部可拆卸地相连且可传递扭矩，所述第一接合部与所述第二接合部动力耦合连接。
  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。
  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，所述安装单元包括旋转盘，所述旋转盘用于安装所述显示终端，所述旋转盘与所述第一接合部连接，且所述旋转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。
  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，所述安装单元包括旋转盘，所述旋转盘用于安装所述显示终端，所述旋转盘与所述第一接合部一体成型。
  5. 根据权利要求1-3中任一项所述的用于调节显示终端的旋转机构，其特征在于，所述安装单元包括旋转盘，所述旋转盘用于安装所述显示终端，所述第一接合部与所述旋转盘可拆卸地相连。
  6. 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。
  7. 根据权利要求6所述的用于调节显示终端的执行机构，其特征在于，所述安装单元和所述驱动单元的壳体中的任一个上形成有内环，所述驱动单元的壳体具有空套在所述内环上的外环，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。
  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，所述驱动单元的机壳包括：壳身和机壳前盖，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，所述安装单元具有穿过所述机壳的安装轴，所述限位环空套在所述安装轴外以限定出环形腔，所述第二接合部的至少部分设于所述环形腔内；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。
  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，所述驱动单元的动力输出件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轴套外；所述第二接合部包括用于与所述第二接合部锁止的接合盘和与所述接合盘背离所述第二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。
  10. 根据权利要求1-9中任一项所述的用于显示终端的旋转机构，其特征在于，还包括基座，所述驱动单元设于所述基座和所述安装单元之间，所述安装单元可枢转地连接在所述驱动单元和所述基座的至少一个上。
  11. 根据权利要求1所述的用于显示终端的旋转机构，其特征在于，所述安装单元包括旋转盘和与所述旋转盘连接的安装轴，所述旋转盘通过安装轴枢设在所述驱动单元以及所述基座上；所述驱动单元设在所述基座内，所述安装轴依次穿过所述基座、所述驱动单元以与所述旋转盘连接。
  12. 根据权利要求11所述的用于显示终端的旋转机构，其特征在于，所述安装轴插入所述安装单元内以与所述安装单元卡接，所述安装轴的一端具有多个沿周向均布的卡接凸部，所述基座、所述动力输出件均具有供多个所述卡接凸部穿过的多个插槽；所述安装单元具有安装孔，所述安装孔的内壁具有多个导向槽以及连接在所述导向槽端部的多个锁止槽，所述锁止槽与所述导向槽的过渡处设有限位凸部，所述卡接凸部卡在所述锁止槽与所述限位凸部之间。
  13. 根据权利要求12所述的用于显示终端的旋转机构，其特征在于，所述导向槽沿所述安装孔的轴向延伸、所述锁止槽沿所述安装孔的周向延伸，每个锁止槽与所述导向槽一一对应连接且构成L形。
  14. 根据权利要求11-13中任一项所述的用于显示终端的旋转机构，其特征在于，还包括弹性件，所述安装轴的一端与所述安装单元连接且另一端具有止挡部，所述弹性件外套在所述安装轴上且止抵在所述止挡部与所述基座的端面之间。
  15. 根据权利要求11-13中任一项所述的用于显示终端的旋转机构，其特征在于，所述基座具有用于容纳所述驱动单元的安装槽，所述安装槽具有供所述安装轴穿过的避让通孔，所述机座的端部具有环绕在所述避让通孔外的定位轴部，所述弹性件通过外套在所述定位轴部上的端面轴承与所述基座的端面相止抵。
  16. 根据权利要求11-13中任一项所述的用于显示终端的旋转机构，其特征在于，所述安装轴为空心轴；所述安装轴与所述旋转盘一体成型或者可拆卸地相连；所述安装单元具有限位柱，所述基座具有限位槽，所述限位柱可滑动地设于所述限位槽内且适于与所述限位槽的两端配合以对所述安装单元进行行程限位。
  17. 根据权利要求1-16中任一项所述的用于显示终端的旋转机构，其特征在于，所述第一接合部包括多个在所述安装单元的端面沿周向均布的第一锁止齿，所述第二接合部包括多个在所述动力输出件的端面沿周向均布的第二锁止齿，多个所述第一锁止齿与多个所述第二锁止齿在周向上交叉分布且在周向上相互锁止；所述第一锁止齿和所述第二锁止齿均为梯形，每个所述第一锁止齿以及所述第二锁止齿的各自两个齿侧为互相靠近且对称分布的斜面。
  18. 根据权利要求1-16中任一项所述的用于显示终端的旋转机构，其特征在于，所述驱动单元包括：
    机壳；
    驱动电机，所述驱动电机设置在所述机壳内,所述驱动电机具有输出轴；
    减速器，所述减速器至少为一级传动机构且至少包括蜗杆直齿传动机构，所述蜗杆直齿传动机构包括互相啮合的蜗杆和直齿轮，所述蜗杆直接或间接与所述驱动电机的输出轴连接，所述直齿轮形成为动力输出件，所述第二接合部形成在所述直齿轮上且伸出所述机壳外。
  19. 根据权利要求18所述的用于显示终端的旋转机构，其特征在于，所述机壳包括：
    壳身，所述壳身用于安装所述驱动电机以及所述减速器；以及
    机壳前盖，所述机壳前盖在所述壳身的前端与所述壳身连接，所述直齿轮在轴向上夹在所述壳身和所述机壳前盖之间，所述第一接合部向前伸出所述机壳前盖外。
  20. 一种车辆，其特征在于，包括：
    显示终端；以及
    如权利要求1-19中任一项所述的旋转机构，所述显示终端安装于所述旋转机构的所述安装单元。
PCT/CN2019/073954 2018-02-11 2019-01-30 用于显示终端的旋转机构以及车辆 WO2019154227A1 (zh)

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