KR100846154B1 - Display system equipped with return function for unfolding state - Google Patents

Abstract

A display system of a vehicle is provided to return a display to an unfolding state by controlling a driving unit using a microcomputer based on sensing signals of a position detecting unit. A display system of a vehicle equipped with a return function to an unfolding state comprises a body(10), a display(20), a driving unit, a position detecting unit(40), and a microcomputer. The body is installed on a ceiling of the vehicle. The display is coupled to the body and is received in a receptacle(11) of the body. The driving unit is provided to open/close the display. The position detecting unit detects whether the display is open or not. The position detecting unit sends a detecting signal to the microcomputer.

Description

DISPLAY SYSTEM EQUIPPED WITH RETURN FUNCTION FOR UNFOLDING STATE}

According to the present invention, when the display deviates from the set open state, the present invention detects it and returns to the set open state.

In the open or closed mode of the display can be automatically fixed or released to the main body,

The display can be opened automatically according to various basic signals,

When the display is opened, it prevents the descent due to the load, and when the display is closed, it assists the upward rotation with the driving means.

The present invention relates to a vehicle display system having an open state return function capable of preventing noise by applying a voltage lower than a rated voltage applied to a driving means.

The vehicle display system is installed on the ceiling of the vehicle to deliver various media information to the occupants.

Such a display system for a vehicle is not used in an open state but in a closed state, that is, a display is opened and used from the main body only when the display is stored in the main body.

As a technique for opening the display from the main body, in the Republic of Korea Patent No. 10-0423301 "Vehicle's liquid crystal monitor mounting mechanism",

A mounting mechanism for mounting and maintaining a large liquid crystal monitor used in a large bus, etc., in a stable state is proposed.

In particular, the monitor installed in a large car such as a large bus has a problem that the opening angle is changed due to the contact of the passengers get on and off.

And, the vehicle display system is provided with a locking means for locking or unlocking the display on the main body,

Such locking means is disclosed in Korean Patent Publication No. 10-2002-0059967 "cover lock device of a laptop computer",

With a single touch you can unlock the cover of your notebook computer and at the same time present a cover lock that allows the cover to be slightly unfolded.

The above technique simply unlocks the cover by one touch, and in a large vehicle display system, there is a problem that may cause a traffic accident to be directly opened by a driver, which makes it difficult to apply.

Therefore, while the display is automatically opened and closed from the main body, there is a demand for locking means.

The present invention detects when the display is out of the set opening angle through the position detection means, and a vehicle having an open state return function to return the display to the set opening angle by the microcomputer receiving the detection signal to control the driving means It is an object to provide a display system.

Another object of the present invention is to provide a display system for a vehicle having an open state return function provided with a locking means for automatically locking or releasing a display by a microcomputer.

Furthermore, an object of the present invention is to provide a vehicle display system having an open state return function for opening and closing a display by operating a driving means by a microcomputer when a basic signal such as a power supply, a playback signal or a recording medium is applied.

In addition, an object of the present invention is to provide a display system for a vehicle having an open state return function, which is provided with a winding spring wound upon opening of the display on a pivot shaft connecting the main body and the display.

Lastly, an object of the present invention is to provide a vehicle display system having an open state return function in which a voltage applied to an electric motor constituting a driving means is lower than a rated voltage of a motor.

In order to solve the above problems, a vehicle display system having an open state return function according to the present invention,
A main body installed on the ceiling of the vehicle;
A display rotatably coupled to the main body;
A driving means pivoting two connecting members coupled to both ends of the display, wherein a voltage applied to the electric motor to prevent noise of the driving means is lower than a rated voltage of the motor;
Position detecting means for detecting when the display is out of the set open state;
When the display is out of the open state set by the position sensing means, the driving means is operated to return the display to its original state, and when the basic signal such as power, playback signal or recording medium is applied, the driving means is operated. A microcomputer to open the display;
Spring washer for pressing the connection member to one side to prevent the coupling hole formed in the two connecting member is larger than the outer diameter of the rotating shaft provided in the drive means, and a high viscosity lubricant to adjust the frictional resistance of the connecting member Including a lubrication washer fixed to the rotating shaft so that the receiving groove is formed and is not rotated, the connecting member is interposed between the two connecting members and the rotating shaft of the drive means is applied to the display shaft when more than the required force Clutch means for turning against the pivot;
In order to automatically fix the closed state of the display, the locker for fixing the closed state of the display, and the locker is moved, the signal is received by the microcomputer in the open mode, the locker is retracted and released in the closed mode A locking means comprising a movable member configured to lock the locker when the display is completely closed after the display is completely closed after receiving the signal by the microcomputer when the display is turned at an angle; And
The main body and the display are connected in order to prevent a sudden drop due to the weight of the display when the display is opened from the main body, and to assist the ascending rotation with the driving of the driving means when the display is closed. Winding spring wound when the display is opened to the rotating shaft;
It is made, including.

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Vehicle display system having an open state return function according to the present invention,

When the display deviates from the set opening angle, it is detected by the position detecting means and the microcomputer operates the driving means to return the display.

This automatically adjusts the opening angle change of the display in response to external shocks, eliminating the need for the driver to manually adjust the angle while driving.

Clutch means is provided to allow the connecting member to swing against the rotation shaft when more than the force necessary for opening and closing the display is provided, thereby preventing distortion of the display.

Automatic control of the driving means of the microcomputer according to the basic signal is made possible to automatically open and close the display,

When opening the display, there is an effect of preventing a sudden drop due to its own weight, and assisting the closing rotational movement with the driving means when the display is closed.

The noise can be prevented by applying a half voltage to the electric motor of the driving means.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a vehicle display system according to the present invention, Figure 2 is a perspective view showing a state in which the vehicle display system according to the invention installed on the ceiling, Figure 3 is a plan view of a vehicle display system according to the present invention 4 is a side view of a vehicle display system according to the present invention, FIG. 5 is an exploded perspective view showing a driving means and a clutch means of the vehicle display system according to the present invention, and FIG. 6 is a driving means of the vehicle display system according to the present invention. And a coupling plan view showing the clutch means, FIG. 7 is a coupling plan view showing a tape spring of the vehicle display system according to the present invention, and FIG. 8 is a block diagram of the vehicle display system according to the present invention.

As shown in Figure 1 to 8, the vehicle display system having an open state return function according to the present invention,

It is largely divided into the main body 10, the display 20, the driving means 30, the position detecting means 40 and the microcomputer 50.

1) Body (10)

It is installed in the vehicle ceiling (C) as shown in Figure 2, in the present invention will be described in the state shown in Figure 1, that is, the state is changed up and down.

The upper surface is formed with a storage space 11 for accommodating the display 20, the drive means 30, the position sensing means 40 and the microcomputer 50 is built.

In addition, a pair of protrusion grooves 12d are formed in the storage space 11 at a position corresponding to the locking groove 21 of the display 20 to be described below.

Locking means 12 having a locking portion 12a protruding into the projecting groove (12d) is provided, the locking means (L) is provided with a movable member 13 connected to one end of the locker 12 and ,

The movable member 13 is operated by the microcomputer 50 to move the locker 12 in both directions.

At this time, in the present invention, the movable member 13 is composed of a solenoid valve.

Accordingly, the locking portion 12a of the locker 12 performs an operation of being caught or released by the locking groove 21 of the display 20.

In the open mode, the microcomputer 50 applies a signal to the movable member 13 to release the locker 12, and when the display 20 is turned at a predetermined angle in the closed mode,

The microcomputer 50 retracts the locker 12 by applying a signal to the movable member 13, and then locks the locker 12 when the display 20 is completely closed.

And, the guide groove 12b for guiding the movement of the locker 12 is formed inside the locker 12, the fixing screw 12c fixed to the main body 10 while being inserted into the guide groove 12b ) Is provided.

On the other hand, the locker 12 is elastically exerted in the direction to lock the display 20, that is, the locking portion 12a of the locker 12 is caught in the locking groove 21 of the display 20 In order to exert elasticity in the direction, one end is provided at the main body 10 and the other end is provided with a tangier spring 14 fixed to the other end of the locker 12.

In addition, when the display 20 is closed, the storage space 11 is provided with a closing sensor 15 for detecting one end of the display 20. In the present invention, the closing sensor 15 ) Is configured as a limit switch,

When the display 20 is completely opened from the main body 10, that is, when the display reaches a range in which the rotation limit angle is determined during the initial production, the full open sensor 16 detects the main body 10 and the display. It is provided in the rotating part of (20).

And, in the present invention, the complete open sensor 16 is composed of a magnetic sensor,

It inserts a magnetic on the outer surface of the rotating part of the display 20, and a sensor that detects the magnetic when the display 20 is fully open (reach to the rotation limit angle) is built in the main body 10 Is done.

2) display (20)

To be rotatably coupled to the main body 10,

The locking groove 21 is pivotally received in the storage space 11 of the main body 10, and the locking groove 21 in which the locking portion 12a of the locker 12 is inserted and caught or released is a protruding groove of the main body 10. 12d) corresponding to the position.

3) drive means (30)

To open and close the display 20,

An electric motor 31 having a drive shaft 31a,

A drive gear 32 arranged on the drive shaft 31a of the electric motor 31;

Respective reduction gears 33 and 34 meshed with the drive gear 32;

A rotation shaft 35 having a driven gear 35a meshed with the reduction gear 34;

The connecting shaft 36 is formed in the rotating shaft 35, that is, a coupling hole 36a larger than the outer diameter of the rotating shaft 35.

Here, the display 20 is connected to the connection member 36.

In addition, the voltage applied to the electric motor 31 constituting the driving means 30 is applied to a voltage lower than the rated voltage of the motor 31, in the present invention is a half voltage of half the rated voltage Is authorized.

The electric motor 31, which is applied with a half voltage, may have an effect of generating a noise significantly lower than that generated at a rated voltage.

On the other hand, when the driving means 30 is applied more than the force necessary for the opening and closing of the display 20, the connecting member 36 is idle against the rotational shaft 35, that is, the clutch means for idling ( CM) is provided.

The clutch means CM is largely comprised of a space washer 37, a spring washer 38, and a lubrication washer 39.

In the rotating shaft 35 fitted in the coupling hole (36a) of the connecting member 36,

A plurality of space washers 37 are provided to secure a space inside and outside of the connecting member 36 and the pivot shaft 35.

A plurality of spring washers 38 are fitted to the rotation shaft 35 so as to be located at the space washer 37 located at the end.

At this time, the spring washer 38 has a concave shape to one side to have an elastic force, the spring washers 38 of this shape are alternately fitted to the rotation shaft 35 are arranged.

Here, alternatively, when the plurality of spring washers 38 are arranged, the positions of the recessed portions of the spring washers 38 are alternately arranged.

At this time, in the present invention, three spring washers 38 are alternately arranged, and the spring washers 38 arranged at the ends are arranged to arrange the three spring washers 38 so that the recessed portion is located outward.

Thus, a space is formed between the recessed portion of the spring washer 38 located at the end and the lubrication washer 39 to be described below.

On the other hand, there is provided a lubrication washer (39) fitted to the rotating shaft (35) to be arranged on the spring washer (38) located at the end,

The lubrication washer 39 is formed with a receiving groove (39a) for filling the high viscosity lubricant inside.

Therefore, the spring washer 38 located at the receiving groove 39a of the lubrication washer 39 and the end thereof, that is, the spring washer 38 in contact with the lubrication washer 39 to adjust the frictional resistance by a high viscosity lubricant. do. Detailed description of the frictional resistance adjustment accordingly will be described below.

The space washer 37 and the spring washer 38 to be inclined relative to the rotation shaft 35, that is to have an inner diameter larger than the outer diameter of the rotation shaft 35.

Then, the lubrication washer 39 can be fixed to the rotation shaft 35,

The fixing groove 39b having a shape corresponding to the cross section of the pivot shaft 35 is formed.

As a final configuration of the clutch means (CM), a fixing nut (N) is screwed to the end of the rotating shaft 35 to prevent the lubrication washer (39) detached. In order to screw the fixing nut (N) there is a screw thread formed at the end of the rotating shaft (35).

Meanwhile, referring to FIG. 7, the pivot shaft 35 connecting the main body 10 and the display 20 is provided with a winding spring S wound when the display 20 is opened.

The spring spring (S) assists the rotation of the closed display (20) opened by the drive means (30). It also serves to prevent backlash of each gear.

That is, in the open mode, it is prevented from falling due to the weight of the display 20,

In the closed mode helps the closing operation together with the drive means (30).

Meanwhile, referring to FIG. 6, rotation limiting projections G1 and 36b are respectively provided between the connecting member 36 and the gear body G surrounding the gears 32, 33, 34, and 35a.

That is, the rotation limiting projections G1 and 36b may have the connection member 36 from the first rotation starting point from the rotation shaft 35 to the point where the rotation limiting projections G1 and 36b come into contact with each other. Since the display 20 corresponds to an angle at which the display 20 is rotated, the rotation angle of the display 20 can be adjusted.

As a means for adjusting the angle at which the display 20 is completely opened from the main body 10 except for the rotation limiting protrusions G1 and 36b, referring to FIG. When 20) reaches the rotation step (not shown) where the full open detection sensor 16 is located, the opening is stopped.

4) Position sensing means 40, microcomputer 50

To detect this when the display 20 is out of the set open state, referring to FIG. 4,

When the display 20 is rotated and reached from the main body 10 according to the initially set opening angle, it detects this and transmits a detection signal to the microcomputer 50.

That is, for example, when the opening angle is set to 90 degrees, each of the main body 10 and the display 20 is located at a position where the display 20 is opened at 90 degrees from the main body 10. The sensor is built in, and the sensing signal from the built-in sensor is transmitted to the microcomputer 50.

Therefore, when the display 20 is out of the set opening angle, that is, when the vehicle is moved by sudden start, sudden stop, or external shock (by a passenger or driver) of the vehicle,

The short circuit of the detection signal by the position detecting means 40 is transmitted to the microcomputer 50, and the microcomputer 50 returns the set opening angle by operating the driving means 30.

In more detail, by operating the drive means 30 to rotate the display 20 at a set angle,

When the rotating display 20 reaches a set angle, that is, a position detected by the position detecting means 40,

The microcomputer 50 receives the detection signal from the position detecting means 40 and stops the operation of the driving means 30.

On the other hand, the microcomputer 50 opens the display 20 by operating the driving means 30 when a basic signal such as power, a playback signal or a recording medium is applied. In addition, when the basic signal is shorted, the microcomputer 50 operates the driving means 30 to close the open display 20.

With the configuration as described above, the operation state of the vehicle display system having the open state return function of the present invention is as follows.

a) When a basic signal such as power, a playback signal or a recording medium is applied to the main body 10 installed in the ceiling C of the vehicle, the microcomputer 50 operates the driving means 30 to open the display 20. Done.

a-1) a basic signal is applied to the microcomputer 50,

a-2) The locking portion 12a of the locker 12 interlocked by driving the movable member 13 of the locking means L by the microcomputer 50 is released from the locking groove 21 of the display 20. ,

a-3) By operating the electric motor 31 of the drive means 30 by the microcomputer 50, the drive gear 32 of the drive shaft 31a, each reduction gear 33, 34, the driven gear 35a Rotate, the rotational shaft 35 formed integrally with the driven gear 35a also rotates interlocked,

a-4) The spring washer 38, the lubrication washer 39 and the fixing nut (N) arranged on the rotational shaft 35, the spring to exhibit the appropriate tightening force of the fixing nut (N), and thereby the elastic force By pressing between the washer 38, and thus the coupling portion of the space washer 37 and the connection member 36, the connection member 36 is capable of interlocking rotation with the pivot shaft 35,

a-5) Therefore, the display 20 connected to the connecting member 36 is opened.

b) The display 20 is rotated by the set opening angle.

b-1) For example, when the setting opening angle is 90 degrees, the setting (in accordance with the time when the opening angle reaches 90 degrees in consideration of the rotational speed / second of the electric motor 31 of the driving means 30) The microcomputer 50 controls the operation of the electric motor 31),

b-2) the electric motor 31 is driven by the set number of revolutions / second to reach the setting opening angle.

b-3) For example, when the full opening angle is reached, the electric motor 31 of the driving means 30 is operated by the microcomputer 30, and the connecting member 36 rotates as in a-4. And the display 20 is open.

b-4) Referring to FIG. 4, the open display 20 is detected by the fully open detection sensor 16 of the main body 10, and the microcomputer 50, which has received the detection signal, is driven by the driving means 30. The motor 31 is stopped.

b-5) As another example, referring to FIG. 6, the rotation limiting projection 36b of the connecting member 36 rotates with the opening of the display 20 at an initial point (ie, in a closed position). When the rotation limiting projection G1 of the sieve G is reached,

Idle rotation occurs between the lubrication washer 39 and the spring washer 38 fixed to the rotational shaft 35, which causes the connection member 36 to no longer rotate. That is, to perform the clutch function.

b-6) Meanwhile, referring to FIG. 7, when the display 20 is opened by the spring spring S connected between the connecting member 36 and the gear body G, the weight of the display 20 is increased. Prevent descent,

When closed, the driving of the electric motor 31 is assisted with the upward rotation of the display 20.

b-7) And, referring to FIG. 4, when the display 20 opened at a set angle (90 ° in FIG. 4) is out of an angle set by an external impact,

The microcomputer 50 receives the detection signal by the position detecting means 40, and the microcomputer 50 operates the electric motor 31 of the driving means 30 to display the display 20 at an original angle, that is, a set angle. ) Is returned.

b-8) On the other hand, if the power applied to the main body 10 is cut off,

By the clutch means CM of the present invention, it is possible to open or close the display 20 manually.

c) The display 20 is automatically closed by a button (not shown) or a short circuit of the basic signal.

c-1) by rotating the display 20 by operating the electric motor 31 of the drive means 30 by the microcomputer 50,

c-2) the rotating display 20 is detected by the closing sensor 15 of the main body 10,

The microcomputer 50 receiving the detection signal stops the operation of the driving means 30, and simultaneously moves the movable member 13 of the locking means L to release the locking portion 12a of the locker 12.

That is, before the display 20 closed by the driving means 30 reaches the closing detection sensor 15 (which is set in consideration of the rotational speed of the electric motor 31 according to the timer) The member 13 is moved to release the locking portion 12a of the rocker 12.

c-3) When the display 20 reaches the closing detection sensor 15 and moves the movable member 13, the locking portion 12a of the locker 12 is locked to the locking groove 21 of the display 20. That is what it is.

c-4) On the other hand, when the power applied to the main body 10 is cut off to close the display 20 manually,

The engaging portion 12a of the locker 12, which is always elastically exerted in the locking direction by the tangent spring 14 of the locking means L, is brought into contact with the engaging groove 21 of the display 20, and then retracted. It is locked by 14).

On the other hand, the electric motor 31 of the driving means 30 provided on both ends of the main body 10 and the display 20 by the clutch means (CM) to overcome the fine rotational difference between each other.

That is, even if the display 20 is distorted due to the minute rotational speed difference between the two electric motors 31, the coupling member 36 with respect to the rotation shaft 35 is idling by the clutch means CM to solve the distortion. .

In the above description of the present invention with reference to the accompanying drawings, a vehicle having a specific shape and structure, the display system for a vehicle having an open state return function has been described mainly, but the present invention can be variously modified and changed by those skilled in the art, such Modifications and variations are to be construed as falling within the protection scope of the present invention.

1 is a perspective view showing a vehicle display system according to the present invention;

2 is a perspective view illustrating a state in which a vehicle display system according to the present invention is installed on a vehicle ceiling;

3 is a plan view of a vehicle display system according to the present invention;

4 is a side view of a vehicle display system according to the present invention;

5 is an exploded perspective view showing a driving means and a clutch means of a vehicle display system according to the present invention;

6 is a combined plan view showing a driving means and a clutch means of a vehicle display system according to the present invention;

7 is a plan view showing a coupling spring of the vehicle display system according to the present invention;

8 is a block diagram of a vehicle display system according to the present invention.

<Description of Symbols for Main Parts of Drawings>

10: main body

11: accommodating space part 15: closing detection sensor

16: fully open detection sensor

20: display

21: hanging groove

30: driving means

31: electric motor 31a: drive shaft

32: drive gear 33, 34: reduction gear

35: rotating shaft 35a: driven gear

36: connecting member 36a: coupling hole

36b: Rotation limit projection

40: position detection means

50: micom

CM: Clutch means

37: space washer 38: spring washer

39: lubrication washer 39a: receiving groove

39b: fixing groove

L: Locking means

12: locker 12a: locking portion

12b: guide groove 12c: set screw

12d: protrusion groove 13: movable member

14: Tange Spring

N: Fixing Nut

C: ceiling

G: gear body

G1: Rotation limit protrusion

S: Manual spring

Claims (6)

delete delete delete delete delete A main body installed on the ceiling of the vehicle; A display rotatably coupled to the main body; A driving means pivoting two connecting members coupled to both ends of the display, wherein a voltage applied to the electric motor is lower than a rated voltage of the motor; Position detecting means for detecting when the display is out of the set open state; When the display is out of the open state set by the position sensing means, the driving means is operated to return the display to its original state, and when the basic signal such as power, playback signal or recording medium is applied, the driving means is operated. A microcomputer to open the display; Spring washer for pressing the connection member to one side to prevent the coupling hole formed in the two connecting member is larger than the outer diameter of the rotating shaft provided in the drive means, and a high viscosity lubricant to adjust the frictional resistance of the connecting member Including a lubrication washer fixed to the rotating shaft so that the receiving groove is formed and is not rotated, the connecting member is interposed between the two connecting members and the rotating shaft of the drive means is applied to the display shaft when more than the force required to open and close the display Clutch means for turning against the pivot; A locker for fixing the closed state of the display, and the locker is moved, but when the signal is received by the micom in the open mode, the locker is retracted and the display is rotated at a predetermined angle in the closed mode. A locking means made of a movable member which locks the locker when the display is completely closed after receiving the signal by retracting the locker; And A spring wound around the rotating shaft connecting the main body and the display when the display is opened; Vehicle display system having an open state return function comprising a.

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