CN114559882B

CN114559882B - Vehicle, adjusting assembly of vehicle-mounted display device and control method of adjusting assembly

Info

Publication number: CN114559882B
Application number: CN202011358145.0A
Authority: CN
Inventors: 张晓茹; 白胜; 都正强; 崔超
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2023-10-17
Anticipated expiration: 2040-11-27
Also published as: CN114559882A

Abstract

The invention discloses an adjusting assembly of a vehicle and a vehicle-mounted display device and a control method thereof. The adjusting component comprises a rotating shaft component, a driving component, a reduction gear, a locking piece and a clearance eliminating component. The anti-backlash component is sleeved outside the rotating shaft component and is positioned at the end part of the reduction gear, which is away from the locking piece. When the adjusting assembly is in a locking state, the reduction gear is in abutting connection with the locking piece; when the adjusting component is in an adjusting state, the anti-backlash component is separated from the reduction gear, and the driving component drives the reduction gear to rotate so as to adjust the rotation angle of the display device; when the adjusting component is in a forced adjusting state, the external force drives the locking piece and the reduction gear to rotate relatively so as to adjust the rotation angle of the display device. According to the adjusting component of the vehicle-mounted display device, the driving component and the clearance eliminating component are arranged, so that fit clearances among the driving component, the reduction gear and the locking piece can be reduced, the purpose of clearance elimination is achieved, and the display device is prevented from shaking due to the existence of the fit clearances.

Description

Vehicle, adjusting assembly of vehicle-mounted display device and control method of adjusting assembly

Technical Field

The invention relates to the field of vehicles, in particular to an adjusting assembly of a vehicle and a vehicle-mounted display device and a control method thereof.

Background

Along with the entertainment of modern automobiles, the level of intellectualization is continuously improved, and the intelligent blowout type development and popularization of mobile terminals are realized. The automobile is not only a walking tool with traditional meaning, but also can provide more application scenes for users to meet the use demands of the clients. The existing vehicles meet the traditional driving needs of customers, and the instrument desk is provided with fixed multimedia and display instruments, so that the more and more diversified driving experiences of the customers are not considered.

In the related art, in a vehicle type with a support display device for rotation, since a rotation system needs forward and reverse rotation and gear backlash is reduced to have backlash return difference, stable locking can only be realized between two fixed gears, and arbitrary switching and stable locking of multiple gears cannot be realized.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the adjusting component of the vehicle-mounted display device, which has the advantages of convenient adjustment and simple structure.

The invention also proposes a vehicle having an adjustment assembly as described above.

The invention also provides a control method of the adjusting component of the vehicle-mounted display device, and the control method has the advantages of simplicity and realization.

According to an embodiment of the invention, an adjusting assembly of an in-vehicle display device includes: the rotating shaft assembly is suitable for being connected with the display device; a drive assembly; the speed reducing gear is connected with the driving assembly, the driving assembly drives the speed reducing gear to rotate, and the speed reducing gear is sleeved on the rotating shaft assembly; the locking piece is sleeved outside the rotating shaft assembly, the locking piece and the reduction gear are arranged along the axis direction of the rotating shaft assembly, and the end face, opposite to the locking piece, of the reduction gear is suitable for being abutted against the locking piece; and the anti-backlash component is sleeved outside the rotating shaft component and is positioned at the end part of the reduction gear, which is away from the locking piece.

The adjusting assembly comprises a locking state, an adjusting state and a forced adjusting state, and when the adjusting assembly is in the locking state, the anti-backlash assembly pushes the reduction gear along the axial direction of the rotating shaft assembly so as to enable the reduction gear to be in abutting connection with the locking piece;

When the adjusting component is in the adjusting state, the anti-backlash component is separated from the reduction gear, the driving component drives the reduction gear to rotate, and the reduction gear drives the locking piece and the rotating shaft component to rotate so as to adjust the rotation angle of the display device;

when the adjusting component is in the forced adjusting state, the locking piece and the reduction gear are driven by external force to rotate relatively so as to adjust the rotation angle of the display device.

According to the adjusting component of the vehicle-mounted display device, the driving component and the clearance eliminating component are arranged, so that fit clearances among the driving component, the reduction gear and the locking piece can be reduced, the purpose of clearance elimination is achieved, and the display device is prevented from shaking due to the existence of the fit clearances.

In some embodiments, the adjusting assembly comprises a housing, and the rotating shaft assembly, the anti-backlash assembly and the reduction gear are arranged in the housing; the anti-backlash assembly comprises: the fixed locking ring is arranged in the shell; the movable locking ring is movably sleeved on the rotating shaft assembly, and when the adjusting assembly is in the adjusting state and in the forced adjusting state, the movable locking ring is abutted to the fixed locking ring, and the movable locking ring is suitable for being abutted to the deceleration iron core.

In some embodiments, the anti-backlash assembly further comprises an electromagnetic assembly adapted to drive the movable locking ring along the spindle assembly.

In some embodiments, the movable locking ring is provided with a protruding part, the fixed locking ring is clamped with the protruding part, and the electromagnetic assembly comprises: the bracket is sleeved on the movable locking ring and is provided with a mounting groove; the coil is sleeved on the bracket, is positioned in the mounting groove, generates an electromagnetic field when the coil is electrified, and moves towards the reduction gear under the action of the magnetic field force; the fixed iron core is sleeved outside the movable locking ring; the reset piece is sleeved outside the movable locking ring, and two ends of the reset piece are propped between the protruding part and the fixed iron core to drive the movable locking ring to move towards the reduction gear.

In some embodiments, the electromagnetic assembly further comprises a cushion sandwiched between the boss and the reset member.

In some embodiments, an end face of the speed reducing gear facing the locking piece is provided with a first matching portion, an end face of the locking piece facing the speed reducing gear is provided with a second matching portion, one of the first matching portion and the second matching portion is an arc convex hull, and the other is an arc concave pit matched with the arc convex hull.

In some embodiments, the first mating portion and the second mating portion are each a plurality of, and the plurality of first mating portions and the plurality of second mating portions are in one-to-one correspondence.

In some embodiments, the drive assembly comprises: a control circuit board; the motor is electrically connected with the control circuit board; and the transmission assembly is connected between the motor and the reduction gear so as to transmit power from the motor to the reduction gear.

In some embodiments, the transmission assembly includes: the speed reducing mechanism is connected with the motor to reduce the output rotating speed of the motor; the worm is connected with the speed reducing mechanism; and the transmission gear is meshed with the worm and is mechanically connected with the reduction gear so as to transmit power to the reduction gear.

In some embodiments, the spindle assembly comprises: the first rotating shaft is fixedly connected with the display device; the one end of second pivot with first pivot is connected, the second pivot with the synchronous rotation of second pivot, reduction gear the locking piece all overcoat is in the second pivot, the other end of second pivot is suitable for being connected with the vehicle.

In some embodiments, the end of the first rotating shaft facing the second rotating shaft is provided with a positioning groove, the end of the second rotating shaft is provided with a positioning column, the positioning column is inserted in the positioning groove, the positioning column is connected with the inner wall of the positioning groove through a spline, the peripheral wall of the first rotating shaft is provided with a flange, the flange extends along the axial direction of the first rotating shaft, the side wall of the flange facing the second rotating shaft is flush with the end face of the first rotating shaft facing the second rotating shaft, and the side wall of the flange facing the second rotating shaft is abutted to the end face of the second rotating shaft facing the first rotating shaft.

According to an embodiment of the present invention, a vehicle includes: a vehicle body; the display device is arranged in the vehicle body; the adjusting component is an adjusting component of the vehicle-mounted display device, and a rotating shaft component in the adjusting component is connected between the vehicle body and the display device; and the damping component is connected between the vehicle body and the adjusting component so as to isolate the vibration of the vehicle body.

According to the vehicle provided by the embodiment of the invention, the driving assembly and the clearance eliminating assembly are arranged, so that the fit clearance between the driving assembly and the reduction gear and between the driving assembly and the locking piece can be reduced, the purpose of clearance elimination is achieved, and the display device is prevented from shaking due to the fit clearance.

According to the control method of the adjusting assembly of the vehicle-mounted display device, the adjusting assembly comprises the following steps: a housing; the rotating shaft assembly is suitable for being connected with the display device; a drive assembly; the speed reducing gear is connected with the driving assembly, the driving assembly drives the speed reducing gear to rotate, and the speed reducing gear is sleeved on the rotating shaft assembly; the locking piece is sleeved outside the rotating shaft assembly, the locking piece and the reduction gear are arranged along the axis direction of the rotating shaft assembly, and the end face, opposite to the locking piece, of the reduction gear is suitable for being abutted against the locking piece; the gap eliminating assembly is sleeved outside the rotating shaft assembly, the gap eliminating assembly is positioned at the end part of the reduction gear, which is away from the locking piece, the rotating shaft assembly, the gap eliminating assembly and the reduction gear are arranged in the shell, the gap eliminating assembly comprises a fixed locking ring, a movable locking ring and an electromagnetic assembly, the movable locking ring is movably sleeved on the rotating shaft assembly, and the electromagnetic assembly is suitable for driving the movable locking ring to move along the rotating shaft assembly;

The adjustment assembly includes an electrically-operated adjustment mode in which the control method includes:

the electromagnetic assembly is powered off, the driving assembly drives the reduction gear to rotate, the reduction gear drives the rotating shaft assembly to rotate, and the display device rotates along with the rotating shaft assembly;

after the display device rotates to a preset position, the electromagnetic assembly is electrified, the electromagnetic assembly drives the movable locking ring to move along the rotating shaft assembly, and the movable locking ring moves towards the reduction gear and is stopped against the reduction gear.

According to the control method of the adjusting component of the vehicle-mounted display device, the driving component and the clearance eliminating component are arranged, so that fit clearances among the driving component, the reduction gear and the locking piece can be reduced, the purpose of clearance elimination is achieved, and the display device is prevented from shaking due to the existence of the fit clearances.

In some embodiments, the adjustment assembly includes a manual adjustment mode in which the control method includes:

the electromagnetic assembly is powered off, and the locking piece is driven manually, so that the locking piece and the reduction gear rotate relatively, and the display device rotates.

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

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is an assembly view of an adjustment assembly and a display device according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of an adjustment assembly according to an embodiment of the present invention;

FIG. 3 is a schematic view of the partial structure of FIG. 2;

FIG. 4 is an exploded view of the first and second shafts of FIG. 2;

FIG. 5 is a schematic structural view of an adjustment assembly according to an embodiment of the present invention;

fig. 6 is a schematic cross-sectional view of fig. 5.

Reference numerals:

the adjustment assembly 400 is configured to adjust the position of the adjustment assembly,

a shaft assembly 410, a first shaft 411, a positioning slot 412, a flange 413, a second shaft 414, a positioning post 415,

drive assembly 420, control circuit board 421, motor 422, transmission assembly 423, reduction mechanism 424, worm 425, transmission gear 426,

the reduction gear 430 is provided with a gear wheel,

the locking member 440 is provided with a locking means,

the anti-backlash assembly 450, the stationary locking ring 451, the movable locking ring 452, the boss 4521,

electromagnetic assembly 454, bracket 455, mounting slot 4551, coil 456, stationary core 457, return 458, cushion 459,

The housing 460, the insert groove 461,

the display device 200 is configured to display a plurality of images,

damper assembly 300, bearing 310, damper spring 320, snap ring 330.

Detailed Description

Embodiments of the present invention will be described in detail below, by way of example with reference to the accompanying drawings.

An adjusting assembly 400 of a vehicle, an in-vehicle display apparatus 200, and a control method thereof according to an embodiment of the present invention are described below with reference to fig. 1 to 6.

As shown in fig. 2 and 3, the adjusting assembly 400 of the in-vehicle display apparatus 200 according to the embodiment of the present invention includes a rotation shaft assembly 410, a driving assembly 420, a reduction gear 430, a locking member 440, and an anti-backlash assembly 450. As shown in fig. 1, the spindle assembly 410 is adapted to be connected to the display device 200.

As shown in fig. 3, the reduction gear 430 and the locking member 440 are both sleeved on the rotating shaft assembly 410, the locking member 440 and the reduction gear 430 are arranged along the axial direction of the rotating shaft assembly 410, the opposite end surfaces of the reduction gear 430 and the locking member 440 are suitable for being abutted against the locking member 440, the reduction gear 430 is connected with the driving assembly 420, the driving assembly 420 drives the reduction gear 430 and the locking member 440 to rotate, the locking member 440 drives the rotating shaft assembly 410 to rotate, and the rotating shaft assembly 410 drives the display device 200 to rotate, so that the angle of the display device 200 can be adjusted.

As shown in fig. 3, the anti-backlash assembly 450 is sleeved on the rotating shaft assembly 410, and the anti-backlash assembly 450 is positioned at the end of the reduction gear 430, which is away from the locking member 440. The adjusting assembly 400 may include a locking state, an adjusting state and a forced adjusting state, when the adjusting assembly 400 is in the locking state, the anti-backlash assembly 450 pushes the reduction gear 430 along the axial direction of the rotating shaft assembly 410, so that the reduction gear 430 is stopped against the locking member 440, and at this time, under the pushing action of the anti-backlash assembly 450, the fit clearance between the reduction gear 430 and the locking member 440 may be reduced, and of course, the fit clearance inside the driving assembly 420 may also be reduced; when the adjusting assembly 400 is in the adjusting state, the anti-backlash assembly 450 is separated from the reduction gear 430, the driving assembly 420 drives the reduction gear 430 to rotate, and the reduction gear 430 drives the locking member 440 and the rotating shaft assembly 410 to rotate, so as to adjust the rotation angle of the display device 200; when the adjustment assembly 400 is in the forced adjustment state, the external force drives the locking member 440 to rotate relative to the reduction gear 430 to adjust the rotation angle of the display device 200.

It should be noted that, when the driving assembly 420 stops driving the motion of the reduction gear 430, the display device 200 may stay at this position, and in order to prevent the fit gap between the driving assembly 420 and the reduction gear 430, and the locking member 440, the reduction gear 430 may be driven to move by using the anti-backlash assembly 450, so that the fit gap between the driving assembly 420 and the reduction gear 430, and the locking member 440 may be reduced, and of course, the fit gap inside the driving assembly 420 may also be reduced.

According to the adjusting assembly 400 of the vehicle-mounted display device 200 of the embodiment of the invention, by arranging the driving assembly 420 and the anti-backlash assembly 450, the fit clearances among the driving assembly 420, the reduction gear 430 and the locking member 440 can be reduced, so that the purpose of anti-backlash is achieved, and the display device 200 is prevented from shaking due to the existence of the fit clearances.

As shown in fig. 3 and 6, the adjustment assembly 400 may include a housing 460, a shaft assembly 410, an anti-backlash assembly 450, and a reduction gear 430 disposed within the housing 460 according to some embodiments of the invention. The shaft assembly 410 includes a first shaft 411 and a second shaft 414. The anti-backlash assembly 450 may include a stationary locking ring 451, a movable locking ring 452, an electromagnetic assembly 454, and a cushion 459. As shown in fig. 6, the electromagnetic assembly 454 includes a bracket 455, a coil 456, a stationary core 457, and a reset member 458. The connection relationship between the above-described components is described in detail below.

As shown in fig. 3 and 6, the driving assembly 420 includes a control circuit board 421, a motor 422, and a transmission assembly 423. The motor 422 is electrically connected to the control circuit board 421, and the power transmission assembly 423 is connected between the motor 422 and the reduction gear 430 to transmit power from the motor 422 to the reduction gear 430. Further, the drive assembly 423 includes a reduction mechanism 424, a worm 425, and a drive gear 426. The reduction mechanism 424 is connected to the motor 422 to reduce the output rotation speed of the motor 422. The worm 425 is connected with a reduction mechanism, the transmission gear 426 is meshed with the worm 425, and the transmission gear 426 is mechanically connected with a reduction gear 430 to transmit power to the reduction gear 430. It should be noted that the transmission mechanism at least comprises a first-stage gear worm system and meets the self-locking condition of gear worm transmission.

As shown in fig. 4, the first rotating shaft 411 is fixedly connected with the display device 200, so that the display device 200 can be driven to rotate by using the first rotating shaft 411, and the rotation stability of the display device 200 can be improved. One end of the second rotating shaft 414 is connected with the first rotating shaft 411, the second rotating shaft 414 rotates synchronously with the second rotating shaft 414, the reduction gear 430 and the locking piece 440 are sleeved outside the second rotating shaft 414, and the other end of the second rotating shaft 414 is suitable for being connected with a vehicle. Further, the end of the first rotating shaft 411 facing the second rotating shaft 414 is provided with a positioning groove 412, the end of the second rotating shaft 414 is provided with a positioning column 415, the positioning column 415 is inserted into the positioning groove 412, and the positioning column 415 is connected with the inner wall of the positioning groove 412 through a spline, so that torque can be smoothly transmitted, and the second rotating shaft 414 is convenient for transmitting motion to the first rotating shaft 411.

Further, as shown in fig. 3, the peripheral wall of the first rotating shaft 411 is provided with a flange 413, the flange 413 extends along the axial direction of the first rotating shaft 411, the side wall of the flange 413 facing the second rotating shaft 414 is flush with the end face of the first rotating shaft 411 facing the second rotating shaft 414, and the side wall of the flange 413 facing the second rotating shaft 414 abuts against the end face of the second rotating shaft 414 facing the first rotating shaft 411. Thereby, the fit tightness between the first rotating shaft 411 and the second rotating shaft 414 can be improved, and the transmission of rotation is facilitated. The second rotating shaft 414 penetrates the reduction gear 430, the reduction mechanism 424 is disposed inside the housing 460, and the second rotating shaft 414 has a hollow structure, and can be used for threading in an inner space thereof.

When the display device 200 is rotated, since the gravity is required to work against when the head is lifted, the gravity is required to assist in working when the head is lowered, in order to avoid the rotation time difference and the noise difference caused by the overlarge load difference in two directions, the rotation damping of the second rotating shaft 414 can be increased by arranging a torsion spring or adding a friction wheel between the housing 460 and the second rotating shaft 414, so as to reduce the time and the noise difference caused by the uneven load in two directions.

Further, as shown in FIG. 3, the anti-backlash assembly 450 may include a stationary locking ring 451, a movable locking ring 452, an electromagnetic assembly 454, and a cushion 459. The electromagnetic assembly 454 may include a bracket 455, a coil 456, a stationary core 457, and a reset member 458. Specifically, the fixed locking ring 451 is disposed in the housing 460, the movable locking ring 452 is movably sleeved on the rotating shaft assembly 410, when the adjusting assembly 400 is in the adjusting state and the forced adjusting state, the movable locking ring 452 is stopped against the fixed locking ring 451, the movable locking ring 452 is suitable for being stopped against the decelerating iron core, the electromagnetic assembly 454 is suitable for driving the movable locking ring 452 to move along the rotating shaft assembly 410, and the buffer 459 is clamped between the protruding portion 4521 and the resetting member 458. Cushion 459 may cushion as active locking ring 452 moves, reducing the launch in place sound.

It should be noted that, the movable locking ring 452 may move along the axial direction of the second rotating shaft 414, and in the circumferential direction of the second rotating shaft 414, a rectangular spline may be used to transmit torque, for example, between the reduction gear 430 and the movable locking ring 452 may be clamped by the rectangular spline.

As shown in fig. 6, the fixed locking ring 451 is fixedly connected with the housing 460, and the fixed locking ring 451 can design a plurality of anti-collision positions according to the requirement of automatic deflection angle gear, and a corresponding anti-collision position is designed on the movable locking ring 452. When the angle of the display device 200 is not required to be adjusted, the coil 456 of the electromagnetic assembly 454 is in a power-off state, the collision stopping position of the movable locking ring 452 is propped against the collision stopping position of the fixed locking ring 451 to be locked, the motor 422 stops in a locked mode, and the gear clearance of the transmission assembly 423 is eliminated, so that stable locking of the system is achieved; when the angle of the display device 200 needs to be adjusted, the coil 456 of the electromagnetic assembly 454 is energized, the movable locking ring 452 moves along the axis of the second rotating shaft 414 under the action of the electromagnetic field, and the movable locking ring 452 is separated from the fixed locking ring 451 in a collision-stopping position, so that the torque of the speed reducing mechanism 424 is transmitted to the second rotating shaft 414 through the speed reducing gear 430 and the locking member 440, and then the second rotating shaft 414 drives the first rotating shaft 411 and the display device 200 to rotate.

Further, the speed reducing mechanism 424 may include a grating or an encoder at the end of the shaft of the motor 422, and the rotation angle of the display device 200 may be determined by recording the position of the shaft of the motor 422. It should be noted that the system may implement the anti-pinch function by limiting the current to the motor 422 and an encoder or grating combination control that combines the motor 422 shaft, determining that the motor 422 triggers an anti-pinch condition when the motor 422 reaches the defined current and the position recorded by the encoder is not a lock-out gear, thereby controlling the motor 422 to stop, or rotating in the opposite direction.

When the rotation angle of the display device 200 reaches a predetermined gear range, the coil 456 stops supplying power at this time, the movable locking ring 452 is reset under the action of the reset member 458, and the anti-collision position of the movable locking ring 452 falls into the corresponding gear range of the fixed locking ring 451. The motor 422 continues to operate until the anti-collision position of the movable locking ring 452 is combined with the corresponding anti-collision position of the fixed locking ring 451, the working current reaches the corresponding threshold value, the backlash of the speed reducing mechanism 424 is completely removed under inertia, the tooth surface is biased to one side, the power supply system of the motor 422 is ended to be stably locked, thus ensuring that the system can not need to introduce unnecessary damping due to the stability of the system in normal transmission, ensuring the transmission efficiency of the system, and also realizing backlash elimination in multi-gear adjustment of the bidirectional selective motion system, realizing noninductive smooth operation in the operation process in multi-gear change, and effective backlash and stable locking in stopping, thereby avoiding the shaking of the display device 200 caused by backlash of the transmission mechanism such as backlash.

As shown in fig. 3, in the electromagnetic assembly 454, the reset member 458, the fixed iron core 457, and the bracket 455 are all sleeved on the movable locking ring 452. The movable locking ring 452 is provided with a protruding part 4521, the fixed locking ring 451 is clamped with the protruding part 4521, and two ends of the reset piece 458 are abutted between the protruding part 4521 and the fixed iron core 457 so as to drive the movable locking ring 452 to move towards the reduction gear 430. The support 455 is provided with a mounting slot 4551, the coil 456 is sleeved on the support 455, and the coil 456 is positioned in the mounting slot 4551, when the coil 456 is energized, an electromagnetic field is generated, and the locking member 440 moves toward the reduction gear 430 under the effect of the magnetic field.

Further, the movable locking ring 452 is nested in the reduction gear 430 to effectively compress the axial dimension of the system, so as to meet the requirement of compact vehicle-mounted structure, and meanwhile, the second rotating shaft 414 is matched with the inner diameter of the movable locking ring 452 to effectively control the deflection clearance of the system to shake, so that the overall stability of the system is improved. The movable locking ring 452 may be made of iron and extends through the fixed iron core 457, coil 456, and bracket 455. As shown in fig. 6, a return 458 is provided between the movable lock ring 452 and the fixed iron core 457. When the coil 456 is energized, an electromagnetic field is generated to urge the movable locking ring 452 to move axially along the rectangular spline grooves in torque communication with the reduction gear 430, and when de-energized, returns under the influence of the return member 458. It should be noted that the restoring member 458 may be a spring.

In some examples, as shown in fig. 6, the locking member 440 may be sleeved on an end of the second rotating shaft 414 near the first rotating shaft 411. In order to facilitate the engagement of the locking member 440 with the reduction gear 430, the end surface of the reduction gear 430 facing the locking member 440 has a first engagement portion, the end surface of the locking member 440 facing the reduction gear 430 has a second engagement portion, and one of the first engagement portion and the second engagement portion is an arc-shaped convex hull, and the other is an arc-shaped concave pit adapted to the arc-shaped convex hull. Further, the first matching parts and the second matching parts are multiple, and the first matching parts and the second matching parts are in one-to-one correspondence.

Further, the locking member 440 and the reduction gear 430 are abutted under the action of the reset member 458, the arc convex hull and the arc concave pit are in an engaged state, so that torque transmission within a design range can be performed, the reduction gear 430 is matched with a transmission mechanism of the driving assembly 420 to perform speed reduction and torque transmission, and the reduction mechanism 424 at least comprises a gear worm system of one stage and meets the self-locking condition of gear worm transmission.

When the manual rotation display device 200 or the display device 200 is subjected to severe external impact during running, the motor 422 is in a power-off state, the reduction gear 430 is clamped with the fixed locking ring 451 through the movable locking ring 452, so that the reduction gear 430 cannot circumferentially rotate, the second rotating shaft 414 is clamped with the locking piece 440 to transmit torque, the locking piece 440 and the reduction gear 430 are meshed with the arc-shaped concave pit through the arc-shaped convex hull of the end face under the pressure action of the resetting piece 458, at the moment, the manual rotation display device 200 or the display device 200 is subjected to severe external impact during running, and when the system design closing force is exceeded, the arc-shaped convex hull and the arc-shaped concave pit between the locking piece 440 and the reduction gear 430 are separated, relative rotation occurs, and therefore the display device 200 can be switched between manual gears, manual rotation is achieved or when accidental collision occurs during running, the manual rotation is achieved, and hurt to people is avoided. Meanwhile, the design of the scheme can also avoid the loss of the speed reducing mechanism 424 when the motor 422 is overloaded and impacted, and can isolate the damage of external impact lower than the locking torque of the system to the speed reducing mechanism 424, thereby improving the stability and the service life of the system.

As shown in fig. 1 to 6, a vehicle according to an embodiment of the present invention includes a vehicle body, a display device 200, a shock absorbing assembly 300, and an adjustment assembly 400 as described above.

It should be noted that, according to the vehicle of the embodiment of the present invention, the display device 200 is disposed inside, the position of the display device 200 may be adjusted, and when the display device 200 is adjusted, the display device 200 may be adjusted in multiple gears, manually or automatically, so as to implement multiple adjustment modes, such as multiple gears, manually or automatically. Namely, the manual rotation angle adjustment is supported, the electric rotation angle adjustment is also supported, the stopping and stable locking of more than two different angle gears in the rotation direction can be realized, the operation of the transmission system is stable and smooth when the gears in different angles are automatically switched, and no gear passing feeling is caused when the gears pass through the middle gear.

Specifically, the display device 200 is disposed in the vehicle body, the rotation shaft assembly 410 of the adjustment assembly 400 is connected between the vehicle body and the display device 200, and the shock absorbing assembly 300 is connected between the vehicle body and the adjustment assembly 400 to isolate the vibration of the vehicle body. It should be noted that, the housing 460 may be provided with an embedded groove 461, and the damper assembly 300 may be disposed in the embedded groove 461.

As shown in fig. 6, shock assembly 300 may include a bearing 310, a shock absorbing spring 320, and a snap ring 330. It should be noted that, the shock absorbing assembly 300 can effectively isolate the influence of overload impact, driving vibration and abnormal impact of external force at the screen end of the motor 422 on the reduction transmission mechanism. The backlash eliminating component 450 in the adjusting component 400 can eliminate backlash in multi-angle gears, realize stable locking in power failure, and avoid micro-shaking caused by backlash, thereby avoiding shaking of the vehicle-mounted display device 200 in the driving process caused by gear transmission clearance.

In addition, the display device 200 can be arranged at the roof position by connecting the adjusting assembly 400 with the vehicle body, the display device 200 can be folded and folded to be parallel to the roof when not in use, and can be folded downwards along the rotating shaft assembly 410 when in use, so that a separate entertainment system can be provided for rear passengers. Of course, the adjusting assembly 400 may also be disposed at the lower end of the display device 200, where the rotating shaft assembly 410 is disposed in the middle of the display device 200 and parallel to the short side direction of the display device 200, to support the rotation angle adjustment of the display device 200 along the primary and secondary driving directions, or the rotating shaft assembly 410 is disposed in the middle of the display device 200 and parallel to the long side direction of the display screen, to support the pitching of the display device 200 for the inclination adjustment, thereby solving the anti-dazzle problem of light rays.

The bearing 310 is disposed at the bottom of the embedded groove 461, the snap ring 330 is disposed at an opening of the embedded groove 461, the damper spring 320 is disposed in the embedded groove 461, one end of the damper spring 320 abuts against the bearing 310, the other end of the damper spring 320 abuts against the snap ring 330, and the snap ring 330 can be used for limiting the damper spring 320 in the embedded groove 461. It should be noted that, the arrangement of the bearing 310 can reduce the friction torque of the system and improve the stability of the system; the damper springs 320 may effectively isolate vibration generated from the vehicle body, so that stability of the display device 200 may be improved.

According to the vehicle of the embodiment of the invention, by arranging the driving assembly 420 and the anti-backlash assembly 450, the fit clearances among the driving assembly 420, the reduction gear 430 and the locking member 440 can be reduced, so that the purpose of backlash elimination is achieved, and the display device 200 is prevented from shaking due to the existence of the fit clearances.

As shown in fig. 1 to 6, according to a control method of the adjustment assembly 400 of the in-vehicle display apparatus 200 of the embodiment of the present invention, the adjustment assembly 400 includes a housing 460, a rotation shaft assembly 410, a driving assembly 420, a reduction gear 430, a locking member 440, and an anti-backlash assembly 450. Wherein the hinge assembly 410 is adapted to be connected to the display device 200.

The driving assembly 420 includes a control circuit board 421, a motor 422, and a transmission assembly 423. The motor 422 is electrically connected to the control circuit board 421, and the power transmission assembly 423 is connected between the motor 422 and the reduction gear 430 to transmit power from the motor 422 to the reduction gear 430. Further, the drive assembly 423 includes a reduction mechanism 424, a worm 425, and a drive gear 426. The reduction mechanism 424 is connected to the motor 422 to reduce the output rotation speed of the motor 422. The worm 425 is connected with a reduction mechanism, the transmission gear 426 is meshed with the worm 425, and the transmission gear 426 is mechanically connected with a reduction gear 430 to transmit power to the reduction gear 430. It should be noted that the transmission mechanism at least comprises a first-stage gear worm system and meets the self-locking condition of gear worm transmission.

As shown in fig. 3, the shaft assembly 410 includes a first shaft 411 and a second shaft 414. The first rotating shaft 411 is fixedly connected with the display device 200, so that the display device 200 can be driven to rotate by utilizing the first rotating shaft 411, and the rotation stability of the display device 200 can be improved. One end of the second rotating shaft 414 is connected with the first rotating shaft 411, the second rotating shaft 414 rotates synchronously with the second rotating shaft 414, the reduction gear 430 and the locking piece 440 are sleeved outside the second rotating shaft 414, and the other end of the second rotating shaft 414 is suitable for being connected with a vehicle. Further, the end of the first rotating shaft 411 facing the second rotating shaft 414 is provided with a positioning groove 412, the end of the second rotating shaft 414 is provided with a positioning column 415, the positioning column 415 is inserted into the positioning groove 412, and the positioning column 415 is connected with the inner wall of the positioning groove 412 through a spline, so that torque can be smoothly transmitted, and the second rotating shaft 414 is convenient for transmitting motion to the first rotating shaft 411.

As shown in fig. 3, the anti-backlash assembly 450 may include a stationary locking ring 451, a movable locking ring 452, an electromagnetic assembly 454, and a cushion 459. The electromagnetic assembly 454 may include a bracket 455, a coil 456, a stationary core 457, and a reset member 458. The fixed locking ring 451 is disposed in the housing 460, the movable locking ring 452 is movably sleeved on the rotating shaft assembly 410, when the adjusting assembly 400 is in the adjusting state and the forced adjusting state, the movable locking ring 452 is stopped against the fixed locking ring 451, the movable locking ring 452 is suitable for being stopped against the decelerating iron core, the electromagnetic assembly 454 is suitable for driving the movable locking ring 452 to move along the rotating shaft assembly 410, and the buffer cushion 459 is clamped between the protruding portion 4521 and the resetting member 458. Cushion 459 may cushion as active locking ring 452 moves, reducing the launch in place sound. It should be noted that, the movable locking ring 452 may move along the axial direction of the second rotating shaft 414, and in the circumferential direction of the second rotating shaft 414, a rectangular spline may be used to transmit torque, for example, between the reduction gear 430 and the movable locking ring 452 may be clamped by the rectangular spline.

As shown in fig. 6, the fixed locking ring 451 is fixedly connected with the housing 460, and the fixed locking ring 451 can design a plurality of anti-collision positions according to the requirement of automatic deflection angle gear, and a corresponding anti-collision position is designed on the movable locking ring 452. In the description of the present invention, "plurality" means two or more. When the angle of the display device 200 is not required to be adjusted, the coil 456 of the electromagnetic assembly 454 is in a power-off state, the collision stopping position of the movable locking ring 452 is propped against the collision stopping position of the fixed locking ring 451 to be locked, the motor 422 stops in a locked mode, and the gear clearance of the transmission assembly 423 is eliminated, so that stable locking of the system is achieved; when the angle of the display device 200 needs to be adjusted, the coil 456 of the electromagnetic assembly 454 is energized, the movable locking ring 452 moves along the axis of the second rotating shaft 414 under the action of the electromagnetic field, and the movable locking ring 452 is separated from the fixed locking ring 451 in a collision-stopping position, so that the torque of the speed reducing mechanism 424 is transmitted to the second rotating shaft 414 through the speed reducing gear 430 and the locking member 440, and then the second rotating shaft 414 drives the first rotating shaft 411 and the display device 200 to rotate.

As shown in fig. 3, in the electromagnetic assembly 454, the reset member 458, the fixed iron core 457, and the bracket 455 are all sleeved on the movable locking ring 452. The movable locking ring 452 is provided with a protruding part 4521, the fixed locking ring 451 is clamped with the protruding part 4521, and two ends of the reset piece 458 are abutted between the protruding part 4521 and the fixed iron core 457 so as to drive the movable locking ring 452 to move towards the reduction gear 430. It should be noted that the restoring member 458 may be a spring. The support 455 is provided with a mounting slot 4551, the coil 456 is sleeved on the support 455, and the coil 456 is positioned in the mounting slot 4551, when the coil 456 is energized, an electromagnetic field is generated, and the locking member 440 moves toward the reduction gear 430 under the effect of the magnetic field.

As shown in fig. 6, the locking member 440 may be sleeved on one end of the second rotating shaft 414 near the first rotating shaft 411. In order to facilitate the engagement of the locking member 440 with the reduction gear 430, the end surface of the reduction gear 430 facing the locking member 440 has a first engagement portion, the end surface of the locking member 440 facing the reduction gear 430 has a second engagement portion, and one of the first engagement portion and the second engagement portion is an arc-shaped convex hull, and the other is an arc-shaped concave pit adapted to the arc-shaped convex hull. Further, the first matching parts and the second matching parts are multiple, and the first matching parts and the second matching parts are in one-to-one correspondence.

The adjustment assembly 400 includes an electric adjustment mode in which the control method includes:

the electromagnetic assembly 454 is powered off, the driving assembly 420 drives the reduction gear 430 to rotate, the reduction gear 430 drives the rotating shaft assembly 410 to rotate, and the display device 200 rotates along with the rotating shaft assembly 410;

After the display device 200 rotates to a preset position, the electromagnetic assembly 454 is electrified, the electromagnetic assembly 454 drives the movable locking ring 452 to move along the rotating shaft assembly 410, and the movable locking ring 452 moves towards the reduction gear 430 and is stopped against the reduction gear 430, so that the purpose of eliminating gaps is achieved.

According to the control method of the adjusting assembly 400 of the vehicle-mounted display device 200 of the embodiment of the invention, when the angle of the display device 200 needs to be adjusted, the adjusting assembly 400 can be adjusted to an electric adjusting mode, the coil 456 of the electromagnetic assembly 454 is in a power-off state, the anti-collision position of the movable locking ring 452 is in abutting locking with the anti-collision position of the fixed locking ring 451, the rotating shaft assembly 410 rotates under the driving of the driving assembly 420, and the display device 200 can be adjusted. When the motor 422 stops at a stop, the coil 456 is energized, and the backlash of the transmission assembly 423 is eliminated, so that stable system locking is achieved, and the adjustment of the display device 200 is completed.

In some embodiments, the adjustment assembly 400 may further include a manual adjustment mode in which the control method includes:

the electromagnetic assembly 454 is powered off, and the locking member 440 is manually driven to rotate the locking member 440 and the reduction gear 430 relatively, so that the locking member 440 drives the display device 200 to rotate.

When the manual rotation display device 200 or the display device 200 is impacted by severe external force in the running process, the adjusting assembly 400 can enter a manual adjusting mode, the motor 422 is in a power-off state, the reduction gear 430 is clamped with the fixed locking ring 451 through the movable locking ring 452, so that the reduction gear 430 cannot circumferentially rotate, the second rotating shaft 414 is clamped with the locking piece 440 to transmit torque, the locking piece 440 and the reduction gear 430 are meshed with the arc-shaped concave pit through the arc-shaped convex hull of the end face under the pressure of the resetting piece 458, the manual rotation display device 200 or the display device 200 is impacted by severe external force in the running process, when the system design closing force is exceeded, the locking piece 440 and the reduction gear 430 are disconnected at the moment, and relative rotation occurs, and therefore the display device 200 can be switched between manual gears, manual rotation is achieved or when accidental collision occurs in the running process, the manual rotation is achieved, and hurt people is avoided. Meanwhile, the design of the scheme can also avoid the loss of the speed reducing mechanism 424 when the motor 422 is overloaded and impacted, and can isolate the damage of external impact lower than the locking torque of the system to the speed reducing mechanism 424, thereby improving the stability and the service life of the system.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

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

Claims

1. An adjustment assembly for an in-vehicle display apparatus, comprising:

the rotating shaft assembly is suitable for being connected with the display device;

a drive assembly;

the speed reducing gear is connected with the driving assembly, the driving assembly drives the speed reducing gear to rotate, and the speed reducing gear is sleeved on the rotating shaft assembly;

The locking piece is sleeved outside the rotating shaft assembly, the locking piece and the reduction gear are arranged along the axis direction of the rotating shaft assembly, and the end face, opposite to the locking piece, of the reduction gear is suitable for being abutted against the locking piece;

the anti-backlash component is sleeved outside the rotating shaft component and is positioned at the end part of the reduction gear, which is away from the locking piece;

2. The adjustment assembly of the vehicle-mounted display device of claim 1, wherein the adjustment assembly comprises a housing, the spindle assembly, the anti-backlash assembly, and the reduction gear being disposed within the housing;

the anti-backlash assembly comprises:

the fixed locking ring is arranged in the shell;

the movable locking ring is movably sleeved on the rotating shaft assembly, and when the adjusting assembly is in the adjusting state and in the forced adjusting state, the movable locking ring is abutted against the fixed locking ring, and the movable locking ring is suitable for being abutted against the deceleration iron core.

3. The adjustment assembly of claim 2, wherein the anti-backlash assembly further comprises an electromagnetic assembly adapted to drive the movable locking ring along the spindle assembly.

4. The adjusting assembly of the in-vehicle display apparatus as recited in claim 3, wherein the movable lock ring is provided with a boss, the fixed lock ring is engaged with the boss,

the electromagnetic assembly includes:

the bracket is sleeved on the movable locking ring and is provided with a mounting groove;

The coil is sleeved on the bracket, is positioned in the mounting groove, generates an electromagnetic field when the coil is electrified, and moves towards the reduction gear under the action of the magnetic field force;

the fixed iron core is sleeved outside the movable locking ring;

the reset piece is sleeved outside the movable locking ring, and two ends of the reset piece are propped between the protruding part and the fixed iron core to drive the movable locking ring to move towards the reduction gear.

5. The adjustment assembly of the in-vehicle display apparatus of claim 4, wherein the electromagnetic assembly further comprises a cushion pad sandwiched between the boss and the reset member.

6. The adjustment assembly of claim 1, wherein an end face of the reduction gear facing the locking member has a first mating portion, an end face of the locking member facing the reduction gear has a second mating portion, and one of the first mating portion and the second mating portion is an arc convex hull, and the other is an arc concave pit adapted to the arc convex hull.

7. The adjustment assembly of claim 6, wherein the first mating portion and the second mating portion are each plural, and the plural first mating portions and the plural second mating portions are in one-to-one correspondence.

8. The adjustment assembly of an in-vehicle display apparatus of claim 1, wherein the drive assembly comprises:

a control circuit board;

the motor is electrically connected with the control circuit board;

and the transmission assembly is connected between the motor and the reduction gear so as to transmit power from the motor to the reduction gear.

9. The adjustment assembly of an in-vehicle display apparatus of claim 8, wherein the transmission assembly comprises:

the speed reducing mechanism is connected with the motor to reduce the output rotating speed of the motor;

the worm is connected with the speed reducing mechanism;

and the transmission gear is meshed with the worm and is mechanically connected with the reduction gear so as to transmit power to the reduction gear.

10. The adjustment assembly of an in-vehicle display apparatus of claim 1, wherein the spindle assembly comprises:

The first rotating shaft is fixedly connected with the display device;

the one end of second pivot with first pivot is connected, the second pivot with the synchronous rotation of second pivot, reduction gear the locking piece all overcoat is in the second pivot, the other end of second pivot is suitable for being connected with the vehicle.

11. The adjusting assembly of the vehicle-mounted display device according to claim 10, wherein the end of the first rotating shaft facing the second rotating shaft is provided with a positioning groove, the end of the second rotating shaft is provided with a positioning column, the positioning column is inserted into the positioning groove, the positioning column is connected with the inner wall of the positioning groove through a spline,

the peripheral wall of first pivot is equipped with the flange, the flange is followed the axis direction of first pivot extends, the flange orientation the lateral wall of second pivot with the first pivot orientation the terminal surface parallel and level of second pivot, the flange orientation the lateral wall of second pivot with the second pivot orientation the terminal surface of first pivot ends and supports.

12. A vehicle, characterized by comprising:

a vehicle body;

the display device is arranged in the vehicle body;

An adjusting assembly, which is an adjusting assembly of the vehicle-mounted display device according to any one of claims 1 to 11, wherein a rotating shaft assembly in the adjusting assembly is connected between the vehicle body and the display device;

and the damping component is connected between the vehicle body and the adjusting component so as to isolate the vibration of the vehicle body.

13. A control method of an adjustment assembly of an in-vehicle display apparatus, the adjustment assembly comprising:

a housing;

a drive assembly;

the gap eliminating assembly is sleeved outside the rotating shaft assembly, the gap eliminating assembly is positioned at the end part of the reduction gear, which is away from the locking piece, the rotating shaft assembly, the gap eliminating assembly and the reduction gear are arranged in the shell, the gap eliminating assembly comprises a fixed locking ring, a movable locking ring and an electromagnetic assembly, the movable locking ring is movably sleeved on the rotating shaft assembly, and the electromagnetic assembly is suitable for driving the movable locking ring to move along the rotating shaft assembly;

14. The control method of an adjustment assembly of an in-vehicle display apparatus according to claim 13, wherein the adjustment assembly includes a manual adjustment mode in which the control method includes: