CN112537259B

CN112537259B - Actuating mechanism for adjusting display terminal and vehicle

Info

Publication number: CN112537259B
Application number: CN201910901224.2A
Authority: CN
Inventors: 王晓文
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2022-08-09
Anticipated expiration: 2039-09-23
Also published as: CN112537259A

Abstract

The invention discloses an actuating mechanism for adjusting a display terminal, which comprises: one end of the rotating shaft is connected with the display terminal, and a limiting column is arranged on the peripheral wall of the rotating shaft; the driving gear is sleeved on the rotating shaft and matched with the rotating shaft to drive the rotating shaft to move; the output end of the driving mechanism is connected with the driving gear, and the driving mechanism is used for driving the driving gear to rotate; the guide sleeve is sleeved on the rotating shaft and outside the driving gear, and a limiting groove suitable for being matched with the limiting column is formed in the inner peripheral wall of the guide sleeve. According to the actuating mechanism for adjusting the display terminal, the length of the rotating shaft can be shortened, the occupied space of the actuating mechanism is reduced, and the space in a vehicle is saved.

Description

Actuating mechanism for adjusting display terminal and vehicle

Technical Field

The invention relates to the technical field of vehicles, in particular to an actuating mechanism for adjusting a display terminal and a vehicle.

Background

With the increasing requirements of modern vehicles on entertainment and intellectualization and the increasing popularization of mobile devices, the functions and forms of vehicle-mounted multimedia become abundant, and meanwhile, the use requirements of passengers are gradually increased. In the related art, the display terminal is driven by the executing mechanism to realize the rotation adjustment of the transverse screen and the vertical screen, but the executing mechanism occupies a large space and occupies a large space in a vehicle.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an actuating mechanism for adjusting a display terminal, which can shorten the length of a rotating shaft, is beneficial to reducing the space occupation of the actuating mechanism and saves the space in a vehicle.

The invention also provides a vehicle with the actuating mechanism for adjusting the display terminal.

An actuator for adjusting a display terminal according to a first aspect of the present invention includes: one end of the rotating shaft is connected with the display terminal, and a limiting column is arranged on the peripheral wall of the rotating shaft; the driving gear is sleeved on the rotating shaft and matched with the rotating shaft to drive the rotating shaft to move; the output end of the driving mechanism is connected with the driving gear, and the driving mechanism is used for driving the driving gear to rotate; the guide sleeve is sleeved on the rotating shaft and outside the driving gear, and a limiting groove suitable for being matched with the limiting column is formed in the inner peripheral wall of the guide sleeve.

According to the actuating mechanism for adjusting the display terminal, the driving gear is sleeved outside the rotating shaft, so that the length of the rotating shaft is shortened, the occupied space of the actuating mechanism is reduced, and the space in a vehicle is saved.

In some embodiments, the drive gear is threadedly engaged with the rotating shaft.

In some embodiments, the restraint post is removably coupled to the rotational shaft.

In some embodiments, a stepped portion is formed on an inner peripheral wall of the guide sleeve, and one axial end of the drive gear abuts against the stepped portion.

In some embodiments, the limiting groove comprises a telescopic limiting section, the telescopic limiting section extends along the axial direction of the guide sleeve, when the limiting column moves along the telescopic limiting section, the rotating shaft moves along the axial direction of the guide sleeve, and when the limiting column moves to one end, close to the driving gear, of the telescopic limiting section in the length direction, the limiting column is suitable for being abutted against the driving gear.

In some embodiments, the stopper groove includes a rotation stopper section extending in a circumferential direction of the guide sleeve, and the rotation shaft rotates about a central axis of the guide sleeve when the stopper post moves along the rotation stopper section.

In some embodiments, a limiting block is disposed in an extending direction of the rotation limiting section, and when the rotating shaft rotates to a preset position, the limiting block is adapted to abut against the limiting column.

In some embodiments, the limiting groove includes a composite limiting section extending spirally along the inner circumferential wall of the guide sleeve, and when the limiting post moves along the composite limiting section, the rotating shaft rotates around the central axis of the guide sleeve while moving in the axial direction of the guide sleeve.

In some embodiments, the retaining groove comprises: the telescopic limiting section extends along the axial direction of the guide sleeve; rotatory spacing section, the one end of rotatory spacing section with the axial one end intercommunication of flexible spacing section, the other end of rotatory spacing section is followed the circumference direction of uide bushing extends, wherein spacing post is followed during the spacing section motion of stretching out and drawing back, the rotation axis is followed the axial direction of uide bushing removes spacing post is followed during the spacing section motion of rotation, the rotation axis is wound the central axis of uide bushing is rotatory.

In some embodiments, the drive mechanism comprises: a power source; the input end of the speed reducer is connected with the output end of the power source, and the output end of the speed reducer is connected with the driving gear.

In some embodiments, the decelerator comprises: the output end of the power source is connected with the first driving worm; a first driven gear in meshing engagement with the first drive worm; and the second driving worm is connected with the first driven gear and is coaxially arranged, and the second driving worm is meshed and matched with the driving gear.

In some embodiments, the actuator comprises: the power source is a motor, and when the working current of the power source exceeds a set threshold value, the power source is powered off by the detection device.

A vehicle according to a second aspect of the invention includes: according to a first aspect of the invention, an actuator for adjusting a display terminal.

According to the vehicle provided by the invention, by arranging the actuating mechanism for adjusting the display terminal in the first aspect, the length of the rotating shaft is shortened, the occupied space of the actuating mechanism is favorably reduced, and the space in the vehicle is favorably saved.

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

FIG. 1 is an exploded view of an actuator for adjusting a display terminal according to one embodiment of the present invention;

FIG. 2 is a cross-sectional schematic view of an actuator for adjusting a display terminal according to one embodiment of the present invention, wherein the display terminal is raised into position;

FIG. 3 is a cross-sectional schematic view of an actuator for adjusting a display terminal according to one embodiment of the present invention, wherein the display terminal is in an initial position;

FIG. 4 is a schematic perspective view of a drive gear according to one embodiment of the present invention;

FIG. 5 is a schematic perspective view of a rotating shaft according to one embodiment of the present invention;

FIG. 6 is a front view of a rotating shaft according to one embodiment of the present invention;

FIG. 7 is a side view of FIG. 6;

FIG. 8 is a top view of FIG. 6;

FIG. 9 is a schematic perspective view of a spacing post according to one embodiment of the invention;

figure 10 is a perspective view of a cartridge holder according to one embodiment of the present invention;

FIG. 11 is a schematic view of a cartridge cover according to one embodiment of the invention;

FIG. 12 is a front view of a cartridge cover according to one embodiment of the invention;

FIG. 13 is a side view of FIG. 12;

FIG. 14 is a top view of FIG. 12;

fig. 15 is a schematic structural view of a deck mount according to another embodiment of the present invention;

figure 16 is a cross-sectional schematic view of a cartridge holder according to yet another embodiment of the present invention;

FIG. 17 is a motion track diagram of the limiting column after the limiting groove in FIG. 16 is unfolded into a plane;

fig. 18 is a perspective view of a deck support according to yet another embodiment of the present invention.

Reference numerals:

an actuator 100;

a rotating shaft 1; an external threaded section 11; a polished rod segment 12;

a limit post 2;

a drive gear 3; an internal thread segment 31;

a guide sleeve 4; a movement bracket 41; a step portion 411; a stop block 412; a movement cover 42; a relief hole 421;

a limiting groove 5; a telescopic limiting section 51; a rotation-limiting section 52; a composite spacing segment 53;

a drive mechanism 6; a power source 61; a speed reducer 62; a first driving worm 621; a first driven gear 622; a second driving worm 623;

a detection device 7;

a circuit board cover 8;

the terminal 200 is displayed.

Detailed Description

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

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

Referring to fig. 1 and 2, an actuator 100 for adjusting a display terminal 200 according to a first aspect of the present invention may include a rotation shaft 1, a driving gear 3, a driving mechanism 6, and a guide sleeve 4.

Referring to fig. 2 and 3, one end of a rotating shaft 1 is connected to a display terminal 200, a limiting post 2 (see fig. 5) is disposed on a circumferential wall of the rotating shaft 1, a driving gear 3 is sleeved on the rotating shaft 1, the driving gear 3 is matched with the rotating shaft 1 to drive the rotating shaft 1 to move, an output end of a driving mechanism 6 is connected to the driving gear 3, and the driving mechanism 6 is used for driving the driving gear 3 to rotate.

The guide sleeve 4 is arranged outside the rotating shaft 1 and the driving gear 3, and a limit groove 5 (see fig. 10) suitable for being matched with the limit column 2 is arranged on the inner peripheral wall of the guide sleeve 4.

The inventor finds in practical research that in the related art, teeth and threads are arranged on a rotating shaft of an actuating mechanism, the teeth are connected with an output end of a driving mechanism, and the driving mechanism drives the rotating shaft to move through the teeth, so that the length of the rotating shaft is large, the length of the actuating mechanism in the axial direction is large, the occupied space of the actuating mechanism is increased, and meanwhile, the teeth and the threads are arranged on the rotating shaft, and the processing difficulty of the rotating shaft is increased.

According to the actuator 100 for adjusting the display terminal 200 of the invention, the driving gear 3 is sleeved outside the rotating shaft 1, and the driving gear 3 is matched with the rotating shaft 1 to drive the rotating shaft 1 to move, so that the arrangement of teeth on the rotating shaft 1 is avoided, the length of the rotating shaft 1 is reduced, the axial length of the actuator 100 is reduced, the space occupation of the actuator 100 is reduced, the installation of the actuator 100 is facilitated, meanwhile, the processing difficulty of the rotating shaft 1 is reduced, and the production cost is reduced.

In some embodiments of the present invention, the driving gear 3 is screw-engaged with the rotating shaft 1. For example, as shown in fig. 2, the rotary shaft 1 is provided with a male screw section 11 (see fig. 6 and 7), the inner ring of the drive gear 3 is provided with a female screw section 31, and the female screw section 31 is engaged with the male screw section 11 (see fig. 4).

In some alternative embodiments of the present invention, referring to fig. 10, the limit groove 5 includes a telescopic limit section 51, the telescopic limit section 51 extends along the axial direction of the guide sleeve 4, the rotating shaft 1 moves along the axial direction of the guide sleeve 4 when the limit post 2 moves along the telescopic limit section 51, and the limit post 2 is adapted to abut against the driving gear 3 when the limit post 2 moves to an end close to the driving gear 3 in the length direction of the telescopic limit section 51. For example, as shown in fig. 5 to 8, the rotary shaft 1 further includes a polish rod segment 12, the polish rod segment 12 is located on a side of the external thread segment 11 away from the display terminal 200, and the stopper rod 2 is provided on an outer peripheral wall of the polish rod segment 12 and located at an end of the polish rod segment 12 close to the external thread segment 11.

It can be understood that, when the limit column 2 moves along the telescopic limit section 51, the telescopic limit section 51 limits the rotational degree of freedom of the rotating shaft 1, the rotating shaft 1 can only perform telescopic motion, in other words, the motion of the driving gear 3 and the rotating shaft 1 is similar to the motion of a screw rod and a nut, the driving gear 3 performs rotational motion, and the rotating shaft 1 performs translational motion.

Therefore, the telescopic function of the rotating shaft 1 can be realized, and meanwhile, the limit column 2 is suitable for being abutted against the driving gear 3, so that the telescopic maximum stroke of the rotating shaft 1 can be limited, and the working reliability of the actuating mechanism 100 can be improved.

In some alternative embodiments of the present invention, referring to fig. 10, the limiting groove 5 includes a rotation limiting section 52, the rotation limiting section 52 extends in a circumferential direction of the guide sleeve 4, and the rotating shaft 1 rotates around a central axis of the guide sleeve 4 when the limiting post 2 moves along the rotation limiting section 52. It can be understood that when the position-limiting column 2 is located at the rotation-limiting section 52, the degree of freedom of extension and contraction of the rotating shaft 1 is limited, and the rotating shaft 1 can only rotate around the central axis of the guide sleeve 4, thereby realizing the rotating function of the rotating shaft 1.

Further, referring to fig. 10, a limiting block 412 is disposed in the extending direction of the rotation limiting section 52, and when the rotating shaft 1 rotates to a preset position, the limiting block 412 is adapted to abut against the limiting post 2 in the rotating direction of the limiting block 412. Therefore, the structure is simple, and the rotation angle of the rotating shaft 1 can be controlled by adjusting the position of the limiting block 412.

For example, referring to fig. 1, the guide sleeve 4 includes a movement bracket 41 and a movement cover 42, the movement cover 42 is disposed at the upper end of the movement bracket 41 and connected to the movement bracket 41, a relief hole 421 is disposed on the movement cover 42, and the rotating shaft 1 is adapted to pass through the relief hole 421.

In some examples, as shown in fig. 15, an annular step 411 is formed on an inner peripheral wall of the movement holder 41, two limit blocks 412 are disposed on an upper surface of the step 411, an arc length of a minor arc section formed between the two limit blocks 412 is one fourth of a circumference of the annular step 411, a lower end of the driving gear 3 abuts against the two limit blocks 412, an upper end of the driving gear 3 abuts against the movement cover 42, a rotation limit section 52 is defined between an upper surface of the step 411, the two limit blocks 412 and a lower surface of the driving gear 3, and the limit column 2 is located on the minor arc section formed between the two limit blocks 412, so that a rotatable angle of the limit column 2 is 90 °.

In some embodiments, as shown in fig. 16 and 18, the stopper groove 5 includes a composite stopper section 53, the composite stopper section 53 extends spirally along the inner peripheral wall of the guide sleeve 4, and when the stopper post 2 moves along the composite stopper section 53 (see fig. 17), the rotary shaft 1 rotates about the central axis of the guide sleeve 4 while moving in the axial direction of the guide sleeve 4. It will be appreciated that when the spacing post 2 moves along the composite spacing segment 53, the rotational and telescopic degrees of freedom of the spacing post 2 are both limited, and when not fully limited, thereby allowing the rotary shaft 1 to perform a combined telescopic and rotary motion, i.e. a helical motion.

In some embodiments of the present invention, as shown in fig. 10, the limit groove 5 includes a telescopic limit section 51 and a rotary limit section 52, the telescopic limit section 51 extends in an axial direction of the guide sleeve 4, one end of the rotary limit section 52 is communicated with one axial end of the telescopic limit section 51, and the other end of the rotary limit section 52 extends in a circumferential direction of the guide sleeve 4, wherein when the limit post 2 moves along the telescopic limit section 51, the rotary shaft 1 moves in the axial direction of the guide sleeve 4, and when the limit post 2 moves along the rotary limit section 52, the rotary shaft 1 rotates around a central axis of the guide sleeve 4. From this, can make rotation axis 1 rotate earlier and stretch out and draw back again, perhaps stretch out and draw back earlier and rotate again, can increase display terminal 200's motion form, be favorable to satisfying user's diversified demand, improve user and use experience.

In other embodiments of the present invention, as shown in fig. 16-18, the retaining groove 5 comprises: a telescopic limiting section 51, a telescopic limiting section 51 and a rotary limiting section 52, wherein the telescopic limiting section 51 extends along the axial direction of the guide sleeve 4, one end of the composite limiting section 53 is communicated with one axial end of the telescopic limiting section 51, the other end of the composite limiting section 53 extends spirally along the inner peripheral wall of the guide sleeve 4, one end of the rotary limiting section 52 is communicated with the other end of the composite limiting section 53, the other end of the rotary limiting section 52 extends along the circumferential direction of the guide sleeve 4,

when the limiting column 2 moves along the telescopic limiting section 51, the rotating shaft 1 moves along the axial direction of the guide sleeve 4, when the limiting column 2 moves along the composite limiting section 53, the rotating shaft 1 rotates around the central axis of the guide sleeve 4 and moves along the axial direction of the guide sleeve 4 at the same time, and when the limiting column 2 moves along the rotary limiting section 52, the rotating shaft 1 rotates around the central axis of the guide sleeve 4. From this, can make spacing post 2 flexible earlier, again stretch out and draw back and rotatory combined motion, rotatory at last, multiplicable display terminal 200's motion form is favorable to satisfying user's diversified demand, improves user and uses experience.

It can be understood that the actuator 100 for adjusting the implementation terminal according to the present invention can change the track of the position-limiting groove 5, so that the display terminal 200 can implement single expansion (refer to fig. 10), single rotation (refer to fig. 15), or a combined expansion and rotation motion (refer to fig. 18), thereby having high versatility.

It should be noted that the limiting groove 5 is formed by randomly combining one or more of the telescopic limiting section 51, the rotary limiting section 52 and the composite limiting groove 5, and the invention is not described in detail with respect to other forming forms of the limiting groove 5, for example, an embodiment in which the limiting groove 5 is formed by combining the telescopic limiting section 51 and the composite limiting groove 5.

In some embodiments of the present invention, as shown with reference to fig. 5-9, the restraint posts 2 are removably connected to the rotating shaft 1. Therefore, the limiting column 2 is detachably connected with the rotating shaft 1, so that the driving gear 3 can be conveniently mounted and dismounted. For example, as shown in fig. 9, the stopper post 2 and the rotary shaft 1 are connected by a screw.

In some examples, as shown in fig. 9, the restraint post 2 may be formed in a cylindrical shape. Therefore, the contact area between the limiting column 2 and the limiting groove 5 is reduced, and the friction coefficient is reduced. For example, in the above-described embodiment in which the stopper groove 5 includes the telescopic stopper section 51, and the rotational stopper section 52, when the stopper post 2 is moved from the telescopic stopper section 51 to the composite stopper section 53, by forming the stopper post 2 into a cylindrical shape, it is advantageous to prevent the stopper post 2 from being stuck.

In some embodiments of the present invention, referring to fig. 10, a stepped portion 411 is formed on the inner peripheral wall of the guide sleeve 4, and one axial end of the drive gear 3 abuts against the stepped portion 411. Therefore, the axial end of the driving gear 3 can be limited, which is beneficial to preventing the driving gear 3 from moving in the axial direction, and the working reliability of the actuating mechanism 100 can be improved.

In some embodiments of the present invention, and as illustrated with reference to fig. 1-3, the drive mechanism 6 comprises: power source 61 and reduction gear 62, the input of reduction gear 62 links to each other with the output of power source 61, and the output of reduction gear 62 links to each other with drive gear 3. It can be understood that, by providing the speed reducer 62, the effects of speed reduction and torque increase can be achieved, which is beneficial to realize that the actuating mechanism 100 drives the display terminal 200 to move.

In some embodiments of the present invention, as shown in fig. 1-3, the reducer 62 includes a first driving worm 621, a first driven gear 622, and a second driving worm 623, wherein the output end of the power source 61 is connected to the first driving worm 621, the first driven gear 622 is engaged with the first driving worm 621, the second driving worm 623 is connected to the first driven gear 622 and is coaxially disposed, and the second driving worm 623 is engaged with the driving gear 3. It can be understood that the worm drive has a good self-locking function (the self-locking can be triggered when the lead angle of the worm is smaller than the friction angle), which is beneficial to improving the working reliability of the actuator 100.

Optionally, the first driven gear 622 and the driving gear 3 are both straight gears, and it can be understood that by adopting a worm straight gear speed reducing mechanism, the mechanism is compact, small in size, light in weight, stable in transmission, low in noise, flexible in layout of the whole speed reducing mechanism, convenient for wiring, more suitable for the requirements of compact space of the whole vehicle mechanism and weight limitation of the whole vehicle, and meanwhile, better driving experience can be provided for users.

In some embodiments, as shown in fig. 1, the actuator 100 includes a detection device 7, the power source 61 is a motor, and the detection device 7 performs a power-off process on the power source 61 when detecting that the operating current of the power source 61 exceeds a set threshold. For example, the detection device 7 is a current-limiting circuit board, when a current exceeding a set threshold is detected, the motor is powered off, in the process of movement of the display terminal 200, when other objects are clamped between the display terminal 200 and the vehicle body, or when a certain part of a human body is located between the display terminal 200 and the vehicle body, the motor cannot effectively drive the display terminal 200 to move, and the motor is powered off, so that the execution mechanism 100 can be prevented from clamping passengers or damaging other objects, the execution mechanism 100 is prevented from being forcibly rotated and damaged, the safety of the execution mechanism 100 is further improved, the service performance of the whole vehicle is improved, and safety anti-clamping and overload protection of the execution mechanism 100 is realized.

The detailed structure of the actuator 100 for adjusting the display terminal 200 according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 14. It is to be understood, of course, that the following description is intended to illustrate the invention and not to limit the invention.

As shown in fig. 1, an actuator 100 for adjusting a display terminal 200 according to an embodiment of the present invention may include a rotary shaft 1, a driving gear 3, a driving mechanism 6, a guide sleeve 4, a detection device 7, and a circuit board cover 8.

As shown in fig. 2 and 3, the upper end of the rotary shaft 1 is connected to the display terminal 200, the circumferential wall of the rotary shaft 1 is provided with a stopper post 2 and an external thread section 11, the stopper post 2 is positioned at the lower side of the external thread section 11, the drive gear 3 is externally sleeved on the rotary shaft 1, the inner ring of the drive gear 3 is provided with an internal thread section 31, and the internal thread section 31 is engaged with the external thread section 11.

As shown in fig. 1, an output end of the driving mechanism 6 is connected to the driving gear 3, the driving mechanism 6 is used for driving the driving gear 3 to rotate, the guide sleeve 4 is sleeved outside the rotating shaft 1 and the driving gear 3, the guide sleeve 4 includes a movement bracket 41 and a movement cover 42, the movement cover 42 is arranged at the upper end of the movement bracket 41 and connected to the movement bracket 41, an avoiding hole 421 is arranged on the movement cover 42, and the rotating shaft 1 is suitable for penetrating out of the avoiding hole 421.

As shown in fig. 10, an annular step portion 411 is formed on the inner peripheral wall of the movement bracket 41, an upper surface of the step portion 411 is provided with a telescopic limiting section 51 extending downward, two limiting blocks 412 are arranged on the upper surface of the step portion 411, an arc length of a minor arc section formed between the two limiting blocks 412 is one fourth of a perimeter of the annular step portion 411, a lower end of the driving gear 3 abuts against the two limiting blocks 412, an upper end of the driving gear 3 abuts against the movement cover 42, a rotary limiting section 52 is defined between the upper surface of the step portion 411, the two limiting blocks 412 and a lower surface of the driving gear 3, the rotary limiting section 52 is communicated with the telescopic limiting section 51, and the rotary limiting section 52 and the telescopic limiting section 51 are both suitable for being matched with the limiting column 2.

When the limiting column 2 moves along the telescopic limiting section 51, the telescopic freedom degree of the rotating shaft 1 is limited, and the rotating shaft 1 moves along the axial direction of the guide sleeve 4; when the limiting column 2 moves along the rotary limiting section 52, the upper end of the limiting column 2 is stopped by the lower end of the driving gear 3, the upper end of the limiting column 2 is stopped by the lower surface of the stepped part 411, and the rotating shaft 1 can only rotate around the central axis of the guide sleeve 4.

As shown in fig. 1, the driving mechanism 6 includes a power source 61 and a speed reducer 62, the speed reducer 62 includes a first driving worm 621, a first driven gear 622 and a second driving worm 623, an output end of the power source 61 is connected to the first driving worm 621, the first driven gear 622 is engaged with the first driving worm 621, the second driving worm 623 is connected to the first driven gear 622 and is coaxially disposed, and the second driving worm 623 is engaged with the driving gear 3, specifically, the power source 61 is a motor.

The detection device 7 is a current-limiting Circuit board, specifically, the current-limiting Circuit board is a pcb (printed Circuit board), and the chinese name is a printed Circuit board, and when a current exceeding a set threshold is detected, the motor is powered off, and in the process of movement of the display terminal 200, when other objects are clamped between the display terminal 200 and the vehicle body, or when a certain part of the human body is located between the display terminal 200 and the vehicle body, the motor cannot effectively drive the display terminal 200 to move, and the motor is powered off.

The assembly process of the actuator 100 may include the steps of: firstly, a first driving worm 621 is pressed on a motor shaft of a power source 61 in an interference fit manner and is arranged in a movement bracket 41; secondly, the inspection device 7 is arranged in the movement bracket 41; thirdly, fixing the circuit board cover 8 on the core bracket 41 through screws, and fourthly, sleeving the first driven gear 622 on the second driving worm 623, and then putting the first driven gear and the second driving worm into the core bracket 41; fifthly, the driving gear 3 is rotatably arranged in the rotating shaft 1 and then arranged in the inner peripheral wall of the movement bracket 41; sixthly, the movement cover 42 is locked on the movement bracket 41 through screws and stops the upper end of the driving gear 3 (refer to fig. 11-14); seventhly, the display terminal 200 is fastened to the upper end of the rotating shaft 1 by a screw.

The following briefly describes the functional implementation of the actuator 100:

1) the transport capacity transmission route of the system is as follows: the power source 61 → the first driving worm 621 → the first driven gear 622 → the second driving worm 623 → the drive gear 3 → the rotation shaft 1 → the display terminal 200.

2) The telescopic movement process of the actuator 100:

when the actuator 100 is at the initial position shown in fig. 3, the display terminal 200 is embedded inside the instrument desk and is in a landscape state;

the motor rotates to drive the first driving worm 621 to rotate, the first driving worm 621 rotates to drive the first driven gear 622 to rotate, the first driven gear 622 drives the second driving worm 623 to rotate, and the second driving worm 623 rotates to drive the driving gear 3 to rotate; because the internal thread of the inner ring of the driving gear 3 is matched with the external thread of the rotating shaft 1, and the limit column 2 of the rotating shaft 1 is in the telescopic limit section 51 of the movement bracket 41 (refer to fig. 3 and 10), when the driving gear 3 rotates, the rotating shaft 1 cannot rotate and can only do telescopic motion along the telescopic limit section 51 (refer to fig. 10) of the movement bracket 41, and then the display terminal 200 is driven to do telescopic motion. At this time, the movement of the driving gear 3 and the rotating shaft 1 is similar to the movement of a screw rod and a nut, namely, the driving gear 3 makes a rotating movement and the rotating shaft 1 makes a translational movement.

3) The rotary motion process of the actuator 100:

when the rotating shaft 1 moves from bottom to top to the limit of the telescopic stroke, the upper part of the limiting column 2 on the rotating shaft 1 is blocked by the driving gear 3 and cannot be extended continuously. However, at this time, the limitation of the limit column 2 in the rotation direction is released, so at this time, the rotating shaft 1 is driven by the driving gear 3 to rotate together with the driving gear 3, at this time, the rotating shaft 1 and the driving gear 3 correspond to one part, in other words, the rotating shaft 1 and the driving gear 3 are relatively stationary, when the rotating shaft 1 rotates to 90 °, the limit column 2 of the rotating shaft 1 is blocked by a limit block 412 (as shown in fig. 10) of the movement bracket 41 and cannot rotate continuously, at this time, the rotating shaft 1 is limited in both the extension and retraction degrees of freedom and the rotation degree, the current of the power source 61 is increased, and when the detection device 7 detects that the current exceeds the threshold value, the current is cut off, and the driving mechanism 6 stops operating.

Further, the inventor finds in practical research that the actuator in the related art can only make the display terminal perform a compound motion of rotating and extending simultaneously, and the application range is narrow. Further, in the related art, when the telescopic stroke increases, the lead angle of the rotary shaft increases sharply, and since the lead angle is limited by machining and generally does not exceed 30 °, the actuator in the related art is suitable only for a small telescopic stroke. Calculating the formula: formula of lead angle

Wherein, P is the lead of the rotating shaft 1, and since the mechanism needs to complete the telescopic stroke when rotating to 90 degrees, P is 4 times of the telescopic stroke, and D is the thread diameter of the rotating shaft 1.

According to the driving mechanism 6 of the embodiment of the present invention, the following functions can be realized:

1) the function that the display terminal 200 is stretched and then rotated is realized through one power source 7 (namely, one motor), so that the cost and the space in the vehicle are saved;

2) the display terminal 200 can realize the independent extension and independent rotation functions by making the limit groove 5 include the extension limit section 51 and the rotation limit section 52, thereby having high versatility;

3) the length of the rotary shaft 1 is reduced and the axial length of the actuator 100 is reduced as compared with the related art. In the related art, teeth and threads are placed on a rotating shaft, and the length of the teeth and the length of the threads must exceed the telescopic stroke, so that the axial length of an actuating mechanism is increased; meanwhile, the teeth and the threads are arranged on the rotating shaft, so that the processing difficulty of the rotating shaft is increased. In the invention, the teeth matched with the second driving worm 623 are placed on the driving gear 3, so that the teeth matched with the second driving worm 623 are avoided being arranged on the rotating shaft 1, and the length of the rotating shaft 1 is favorably reduced. In the related art, teeth matched with the second driving worm are placed on the rotating shaft, and the length of the teeth on the rotating shaft needs to be the length matched with the second driving worm plus the telescopic stroke;

4) according to the actuator 100 of the embodiment of the invention, the ratio of the time of the telescopic stroke to the time of the rotary stroke can be changed by adjusting the thread lead of the rotary shaft 1, and when the thread lead of the rotary shaft 1 needs to be four times of the telescopic stroke, the time of the telescopic stroke is equal to the time of the rotary stroke, so that the use experience of a user can be improved.

A vehicle according to a second aspect of the invention includes: the actuator 100 for adjusting the display terminal 200 according to the first aspect of the present invention.

According to the vehicle of the present invention, by providing the actuator 100 for adjusting the display terminal 200 of the first aspect, the length of the rotating shaft 1 is shortened, which is beneficial to reducing the space occupation of the actuator 100 and saving the space in the vehicle.

Other configurations and operations of vehicles according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings, which are simply for convenience of description and simplicity of description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

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

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

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

Claims

1. An actuator for adjusting a display terminal, comprising:

one end of the rotating shaft is connected with the display terminal, and a limiting column is arranged on the peripheral wall of the rotating shaft;

the driving gear is sleeved on the rotating shaft and matched with the rotating shaft to drive the rotating shaft to move;

the output end of the driving mechanism is connected with the driving gear, and the driving mechanism is used for driving the driving gear to rotate;

the guide sleeve is sleeved outside the rotating shaft and the driving gear, and a limiting groove suitable for being matched with the limiting column is formed in the inner peripheral wall of the guide sleeve;

the driving gear is in threaded fit with the rotating shaft.

2. The actuator for adjusting a display terminal of claim 1, wherein the restraint post is detachably connected to the rotation shaft.

3. The actuator for adjusting a display terminal according to claim 1, wherein a stepped portion is formed on an inner peripheral wall of the guide sleeve, and one axial end of the driving gear abuts against the stepped portion.

4. The actuator for adjusting a display terminal according to claim 1, wherein the stopper groove includes a telescopic stopper section extending in an axial direction of the guide sleeve, the rotary shaft moves in the axial direction of the guide sleeve when the stopper post moves along the telescopic stopper section,

when the limiting column moves to one end, close to the driving gear, of the telescopic limiting section in the length direction, the limiting column is suitable for abutting against the driving gear.

5. The actuator according to claim 1, wherein the stopper groove includes a rotation stopper section extending in a circumferential direction of the guide sleeve, and the rotation shaft rotates about a central axis of the guide sleeve when the stopper post moves along the rotation stopper section.

6. The actuator for adjusting a display terminal of claim 5, wherein a limiting block is disposed in an extending direction of the rotation limiting section, and the limiting block is adapted to abut against the limiting post when the rotation shaft rotates to a predetermined position.

7. The actuator according to claim 1, wherein the stopper groove comprises a composite stopper portion extending spirally along an inner peripheral wall of the guide sleeve, and when the stopper post moves along the composite stopper portion, the rotary shaft rotates around a central axis of the guide sleeve while moving in an axial direction of the guide sleeve.

8. The actuator for adjusting a display terminal of claim 1, wherein the retaining groove comprises:

the telescopic limiting section extends along the axial direction of the guide sleeve;

one end of the rotary limiting section is communicated with one axial end of the telescopic limiting section, the other end of the rotary limiting section extends along the circumferential direction of the guide sleeve,

when the limiting column moves along the telescopic limiting section, the rotating shaft moves along the axial direction of the guide sleeve, and when the limiting column moves along the rotary limiting section, the rotating shaft rotates around the central axis of the guide sleeve.

9. The actuator for adjusting a display terminal of claim 1, wherein the driving mechanism comprises:

a power source;

the input end of the speed reducer is connected with the output end of the power source, and the output end of the speed reducer is connected with the driving gear.

10. The actuator for adjusting a display terminal of claim 9, wherein the decelerator comprises:

the output end of the power source is connected with the first driving worm;

a first driven gear in meshing engagement with the first drive worm;

and the second driving worm is connected with the first driven gear and is coaxially arranged, and the second driving worm is meshed and matched with the driving gear.

11. The actuator for adjusting a display terminal of claim 9, comprising:

the power source is a motor, and when the working current of the power source exceeds a set threshold value, the power source is powered off by the detection device.

12. A vehicle, characterized by comprising: actuator for adjusting a display terminal according to any of claims 1-11.