KR100880053B1 - Auto sunshield device - Google Patents

Abstract

An automatic light shielding device is disclosed. The automatic light shielding device of the present invention comprises a light blocking member, a lifting member for elevating the light blocking member up and down, and an upper light sensor and a lower light sensor positioned below the upper light sensor and installed at an end of the light blocking member. And a control unit controlling the elevating member according to the amount of light received by the upper light sensor and the lower light sensor, respectively. The controller may be configured to: when the amount of light received by the upper light sensor and the lower light sensor is larger than a reference light amount, and when the amount of light received is smaller than the amount of light received by the upper light sensor or received by the lower light sensor, It determines whether it is smaller and outputs a signal for raising, lowering and stopping the light blocking member to the lifting member. The automatic shading device according to the present invention tracks a point where direct light enters and does not enter a boundary point by a sensor unit, and blocks the direct light only by placing the light blocking member at the boundary point, and does not place the light blocking member in the part where no direct light is incident. There is an advantage to expand.

Winding motor

Description

Automatic Shading Device {AUTO SUNSHIELD DEVICE}

1 is a front view showing that the automatic light shielding device according to an embodiment of the present invention is installed inside a window.

2 illustrates a state in which the light blocking member of the automatic light blocking device according to the present invention is lowered.

3 is a block diagram illustrating a method of controlling a lifting member of the automatic light shielding device of FIGS. 1 and 2.

4 is an external state diagram of a window in which the automatic light shielding device of the present invention is installed.

5 to 7 is a simplified view of the window in the building is installed the inventors light shielding device.

FIG. 8 illustrates when the lifting member is installed at the upper end of the window unlike FIG. 1.

9 to 11 schematically show that the automatic shading device according to the present invention is installed at the upper end of the window and operates according to the movement of the sun.

12 illustrates a lifting member of an automatic light shielding device according to another embodiment of the present invention.

13 illustrates a state in which the light blocking member is lowered by the elevating member.

14 illustrates a state in which the light blocking member is completely lowered by the elevating member.

The present invention relates to a light shielding device, and more particularly, to a direct light boundary tracking type automatic light shielding device which detects a boundary in which direct light shines with an optical sensor to automatically position the light blocking member to a place where direct light shines.

In general, the light blocking member and the curtain are installed in the interior of windows such as windows formed in various buildings to protect the privacy of the interior or serve as a shade. The curtain is mainly curtained by the upper guide rails. The upper end is slid left and right so as to be opened and closed, or the curtain is installed to open and close while lifting up and down.

However, the conventional curtains are one of the opening and closing methods by moving left and right or by moving up and down, but there is a problem that its utilization is not good in controlling the light shielding part by selectively installing.

For example, curtains that are opened and closed by sliding left and right can be completely shielded by covering the front of the window even if only the top of the sunlight window passes.In the case of curtains opened and closed by up and down, the left side of the window Or even if only one side passes through the sunlight, this too must cover the front of the window for complete shading.

Therefore, if the window is opened for indoor ventilation while the curtain is opened for shading, the outside air is blocked and it is not easy to flow into the room, and when the air blows a little from the outside, the curtain blows and distracts the surroundings. There was a problem to let.

The technical problem to be achieved by the present invention is to automatically position the light-shielding member at the boundary between the shade and direct light, to protect the products displayed in the building, or those who are active in the direct light from the sun, where the light does not shine. By blocking the member, it is possible to provide an automatic light shielding device which can secure a visual field and can even expect the advertisement effect of the display.

An automatic light shielding device according to the present invention comprises: a light blocking member; An elevating member for elevating the light blocking member up and down; A sensor unit including an upper optical sensor and a lower optical sensor positioned below the upper optical sensor and installed at an end of the light blocking member; And a control unit controlling the elevating member according to the amount of light received by the upper optical sensor and the lower optical sensor, respectively.

Particularly, the light blocking member is installed at a lower end or an upper end of the light shielding glass, and the control unit is configured to lift the light blocking member so that the light blocking member is raised when the amount of light received by the upper light sensor and the lower light sensor is greater than a reference light amount, respectively. Control the elevating member so that the light blocking member is lowered when the amount of light received by the upper light sensor and the lower light sensor is less than or equal to the reference light amount, and the amount of light received by the upper light sensor is controlled. When the light amount is less than or equal to the reference light amount and the amount of light received by the lower light sensor is greater than or equal to the reference light amount, the lifting member is controlled to stop the light blocking member.

The elevating member may include: wires having one end fixed to both upper ends of the light blocking member; A roll pole having a lower end or an upper end of the light blocking member fixed thereto and having a spiral spring mounted at one or both ends thereof; The other end of the wire is fixed to the rotating shaft is a drive motor mounted with a pull pulley (roll pully) that the wire is selectively wound; preferably comprises a.

In addition, the upper end of the light blocking member is fixed to the fixing rod, the lifting member is a lower end of the light blocking member is fixed, the winding rod is mounted on one or both ends of the spiral spring; It is preferable that the lower link is rotated by the drive motor, and the lower and upper link members consisting of an upper link axially coupled to the upper end of the lower link and the end of the fixing rod, respectively.

The remote controller may further include a remote controller receiver configured to receive a control signal transmitted from the remote controller, and the controller may control the lift member by the control signal received from the remote controller receiver.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the embodiments of the present invention, reference should be made to the accompanying drawings illustrating embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, the present invention will be described in detail by explaining preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

1 is a front view of an automatic light shielding device installed in a lower side in a window according to an embodiment of the present invention, Figure 2 is a state in which the light blocking member of the automatic light shielding device according to the present invention is lowered, Figure 3 is Figure 1 And a block diagram illustrating a method for controlling the lifting member of the automatic light shielding device of FIG. 2.

The automatic light shielding device according to the present invention is installed below or above a window made of glass such as a building or an automobile.

1 to 3, the automatic light blocking device 1 according to an embodiment of the present invention includes a light blocking member 16, a lifting member 30 for elevating the light blocking member 16 up and down, and an upper portion thereof. A sensor unit 20 including an optical sensor 22 and a lower optical sensor 24 positioned below the upper optical sensor 22 and installed at an end of the light blocking member 16, and the upper optical sensor ( 22) and a control unit 40 for controlling the lifting member 30 according to the amount of light received by the lower optical sensor 24, respectively.

The light blocking member 16 is made of a material such as fabric or synthetic resin, and is connected to the elevating member 30 to block direct light incident from the outside by being raised or lowered by the elevating member 30. .

The lifting member 30 is a wire 32, one end of which is fixed to both upper ends of the light blocking member 16, the lower end of the light blocking member 16 is fixed, one end or both ends of the spiral spring 34 is mounted Drive motor 60 is equipped with a roll pole (36; roll pole) and a winding pulley (38; roll pully) to which the other end of the wire (32) is fixed to the rotating shaft to selectively wind the wire (32). )

One end of each of the upper ends of the light blocking member 16 is fixed to the wire 32, and the other end of the wire 32 is connected to the driving motor through a pulley 33 provided at an upper end of the window frame 12. It is wound up by the winding pulley 38 attached to 60. In addition, a lower end of the light blocking member 16 is wound around a winding rod 36 on which a spiral spring 34 is mounted.

In particular, the drive motor 60 in which the winding pulley 38 is mounted may be embodied in the upper window frame 12, and the winding pulley 38 is directly connected to the wire 32 without passing through the pulley 33. You can wind it up right away. Therefore, it is preferable that the pulley 33 is selectively implemented as necessary.

The sensor unit 20 includes an upper optical sensor 22 and a lower optical sensor 24, and is installed at an end of the light blocking member 16. In this case, the sensor unit 20 installed at the end of the light blocking member is installed to be movable left and right by the user in the end, and senses the amount of light shining on the window and outputs it to the control unit 40. Since the sensor unit 20 installed in the end is movable to the left and right, there is an advantage that the light can be sensed according to the direction of the light incident to the window. In the embodiment of the present invention will be described with respect to the time when the sensor unit 20 is located in the center in the end, it can be moved to the left and right to sense light.

More specifically, the upper light sensor 22 detects the direct light received from the upper side based on the center of the end of the light blocking member 16 and outputs it to the controller 40, and the lower light sensor 24 is the The direct light received on the lower side with respect to the center of the end portion of the light blocking member 16 is detected and output to the controller 40. That is, the sensor unit 20 tracks the point where the direct light is incident and the point that is not incident.

The control unit 40 may be implemented internally in the automatic light shielding device 1, and the lifting member 30 is compared with the amount of light received from the upper light sensor 22 and the lower light sensor 24 with a reference light amount. To control. In particular, the controller 40 outputs a forward control signal and a reverse control signal for controlling the drive motor 60 of the elevating member 30, and the drive motor 60 controls the forward direction of the controller 40. The winding pulley 38 driven in the forward direction according to the signal output and mounted on the drive motor 60 winds up the wire 32 by the forward drive of the drive motor 60. In addition, the light blocking member 16 wound by the spiral spring 34 of the winding rod 36 is raised upward by the forward rotation of the driving motor 60. That is, the light blocking member 16 unwound by the winding rod 36 by the driving motor 60 is covered to the boundary point of direct light.

2 illustrates a state in which the light blocking member 16 is lowered. When the control unit 40 outputs a reverse control signal, the driving motor 60 drives in the reverse direction. Accordingly, the wire 32 is unrolled while the winding pulley 38 mounted on the drive motor 60 rotates in the reverse direction, so that the light blocking member 16 fixed to the wire 32 is spiral spring 34. ) Is automatically wound by the winding rod (36) is mounted. That is, the light shielding member 16 is lowered by being wound by the winding rod 36.

In particular, the light blocking member 16 may be raised and lowered in various modifications in addition to the structure of elevating the light blocking member by using the driving motor 60 and the winding pulley 38. That is, the drive motor 60 and the winding pulley 38 may be a structure that raises or lowers the light blocking member 16.

3 illustrates a method in which the control unit 40 receives the output of the sensor unit 20 to control the elevating member 30. The control of the light blocking member 16 of the automatic light blocking device 1 is controlled by the control unit. 40 starts from receiving the output of the sensor unit 20. The controller 40 receives electric energy from the power supply unit 50, which may be a solar cell or other power supply device, and receives the amount of light received from the upper photo sensor 22 and the amount of light received from the lower photo sensor 24. After receiving the signal, a comparison with the stored reference light quantity is performed.

When the amount of light received by the upper photo sensor 22 and the amount of light received by the lower photo sensor 24 are greater than the stored reference light amount, the control unit 40 drives the driving motor 60 of the elevating member 30. To output the forward control signal. Therefore, the driving motor 60 of the elevating member 30 is driven in the forward direction according to the forward control signal output of the control unit 40 to raise the light blocking member 16 from the bottom up.

In addition, the control unit 40 may drive the driving motor of the elevating member 30 when the amount of light received by the upper optical sensor 22 and the amount of light received by the lower optical sensor 24 are less than or equal to the stored reference light amount. The reverse control signal is output to (60). The driving motor 60 of the elevating member 30 lowers the light blocking member 16 from top to bottom according to the reverse control signal output of the controller 40.

The controller 40 moves up and down when the amount of light received by the upper light sensor 22 is less than or equal to the reference light amount, and the amount of light received by the lower light sensor 24 is greater than or equal to the reference light amount. The light blocking member 16 is stopped by using the member 30. That is, the driving motor 60 of the elevating member 30 positions the end of the light blocking member 16 at a boundary line between a point where direct light enters and a point that does not enter. Accordingly, the light blocking member 16 automatically blocks only direct sunlight coming from the outside.

In addition, the control unit 40 receives the stored amount of light from the upper light sensor 22 and the lower light sensor 24 received from the sensor unit 20 while the light blocking member 16 is moved in real time. Compared with the reference light amount, the light blocking member 16 continuously moves up and down and stops.

In particular, the automatic light shielding device 1 includes a first limit switch 11 for preventing the light blocking member from rising to the upper window frame of the window when the incident light is incident to the upper window frame, and the incident light is lower window frame. The light blocking member 16 is provided with a second limit switch 31 to prevent the light blocking member 16 from descending to the lower window frame of the window when the light is incident. The failure of the automatic light shielding device 1 is prevented by preventing the light blocking member 16 from rising and falling through the first and second limit switches 11 and 31.

In addition, the automatic light shielding apparatus 1 of the present invention may further include a remote controller receiver 70 internally, and receives a control signal from the external remote controller 80. The control signal received through the remote controller receiving unit 70 is output to the control unit 40, the control unit 40 may control the lifting member 30 in accordance with the control signal.

In particular, the control signal received by the external remote controller 80 may control the automatic light shielding device 1 of the present invention manually. When the automatic light blocking device 1 is manually controlled, the sensor unit 20 may not be operated.

In order to manually control the automatic light blocking device 1, a separate button may be provided on the external remote controller 80 to raise and lower the light blocking member 16, and the user may operate the automatic light blocking device according to the operation of the button. Allows manual control of (1).

4 is an external state diagram of a window in which the automatic light shielding device of the present invention is installed.

Referring to FIG. 4, the sensor unit 20 may be disposed outside the light blocking member 16. The reason why the sensor unit 20 is provided on the outside of the light blocking member 16 is to sense well or not the direct light incident through the window 10 to find the boundary point for positioning the light blocking member 16 well. .

5 to 7 is a simplified view of the window in the building is installed the inventors light shielding device.

Referring to FIG. 5, when the sun is at a low altitude, that is, in the morning or afternoon, direct sunlight shines on the window 10. Accordingly, the sensor unit 20 including the upper light sensor 22 and the lower light sensor 24 detects direct light incident to the upper portion of the window 10 and moves the light blocking member 16 to the window 10. ) To the upper side of the

More specifically, as the direct light incident on the window 10 illuminates the entire surface of the window 10, the light received from the upper light sensor 22 and the lower light sensor 24 becomes larger than a reference light amount. Accordingly, the light blocking member 16 to which the sensor unit 20 is attached is gradually raised upward by the elevating member 30 to find the boundary point where the direct light is incident.

As the light blocking member 16 gradually rises to cover the entire window 10 and blocks direct light incident through the window 10, a product displayed in the building or a person who is active in the building is exposed to direct light. Therefore, people can reduce glare and heat caused by direct sunlight, and display goods can reduce light fading, decay and damage.

In particular, the light blocking device 1 includes a first limit switch 11 for preventing the light blocking member 16 from rising to the upper window frame of the window when the incident light is incident to the upper window frame. And a second limiting switch 31 for preventing the light blocking member from descending to the lower window frame of the window when incident to the lower window frame. The second limit switch 31 is shown in FIGS. 5 to 7 in the construction of the figure.

FIG. 6 shows when the sun hits a window 10 in which the automatic shading device 1 is installed at a medium altitude slightly higher than the sun elevation of FIG. 5 in which direct sunlight entering a building eaves 90 Is blocked by some. Therefore, only part of the direct light is incident on the window 10 on which the automatic light shielding device 1 is mounted. The sensor unit 20 tracks the point where the direct light is incident and the point where it is not incident by using the upper light sensor 22 and the lower light sensor 24.

More specifically, when the amount of light received by the upper light sensor 22 and the lower light sensor 24 is greater than the reference light amount, the light blocking member 16 is continuously raised by the elevating member 30, and the upper light The light blocking member 16 is stopped by the elevating member 30 when the amount of light received by the sensor 22 is less than or equal to the reference light amount and the amount of light received by the lower light sensor is greater than or equal to the reference light amount. . That is, the sensor unit 20 stops the light blocking member 16 at the boundary point by tracking the boundary point where direct light does not enter and the boundary point which does not enter. By raising the light blocking member 16 only to the place where the direct light is incident, there is an advantage that it is possible to protect people or objects inside the building from the direct light, and to enlarge the field of view through the place where the direct light is not incident. Since the inside is exposed to the outside through the place where the direct light is not incident, there is an advertising effect on the goods displayed inside.

FIG. 7 is a view showing when the sun shines on the window 10 in which the automatic light shielding device 1 is installed at noon time when the sun is higher than the altitude of the sun of FIG. The lower part of the window 10 is exposed to direct sunlight. Therefore, the light blocking member 16 which is raised to the upper side of the window in FIG. 6 is automatically lowered again by the boundary point recognition of the sensor unit 20. More specifically, when the amount of light received by the upper light sensor 22 and the lower light sensor 24 is less than or equal to a reference light amount, the light blocking member 16 is lowered downward by the elevating member 30. Done. In addition, the light blocking member 16 continuously lowers when the output of the sensor unit 20 is smaller than the reference light amount, and the light received by the upper light sensor 22 is smaller than or equal to the reference light amount, and the lower light sensor ( The light received in 24) is stopped when it is greater than or equal to the reference light quantity.

As the light blocking member 16 descends, it blocks the direct light shining on a part of the window 10 and enlarges the field of view through most of the front surface where the direct light is not incident, thereby further advertising the product displayed therein. For example, a person can relieve freshness or frustration through an enlarged view.

The automatic light shielding device 1 of the present invention rises upward at the time of sunrise, and when it is noon, the direct light is blocked by the eaves 90 so that the light shielding member 1 descends downward and then gradually increases as the afternoon comes. Going up In addition, since there is no direct sunlight at sunset, the light blocking member 16 may be lowered to further expand the field of view. That is, the automatic light shielding device 1 has an advantage that it can be used in various time zones, seasons.

In particular, in the present embodiment, the installation direction of the window has been described with respect to the south side, but in the case of the window installed in the west direction, as opposed to the present embodiment, the automatic light shielding device 1 is of course driven. That is, the present invention has the advantage of blocking the light by detecting the incident light in accordance with the installation direction of the window.

FIG. 8 illustrates when the lifting member is installed at the upper end of the window unlike FIG. 1.

Referring to FIG. 8, unlike FIG. 1, the automatic light shielding device 1 may be installed on the upper end of the window 10 so as to illuminate the entire surface and to be applied to the window gradually illuminating only the upper side.

More specifically, the automatic light blocking device 1 installed at the upper end of the window lowers or raises the light blocking member 16 from the top or the bottom using the elevating member 30.

In general, the windows 10 installed in the west or north of Korea are exposed to direct sunlight when the sun goes west on the basis of noon. In other words, the closer the sun is to noon, the westward or northward windows are exposed to direct sunlight from the top.

Therefore, the present invention is mounted on the upper end of the window installed in the west or north facing the light shielding device 1 of the present invention, by detecting the direct light shining from the top with the sensor unit 20 to lower the light blocking member 16 down. In addition, as the sun moves to a lower altitude in the west direction, the light blocking member 16 is lifted by the elevating member 30 because direct light is incident on only part of the window.

In addition, when the light blocking member 16 enters the upper window frame with the first limit switch 11 for preventing the lowering of the window frame from descending to the lower window frame, the light blocking member 16 extends to the upper side of the window 10. A second limit switch 31 is provided to prevent the rise. The second limit switch 31 is shown in Figs. 9 to 11 in the construction of the figure.

9 to 11 schematically show that the automatic shading device according to the present invention is installed at the upper end of the window and operates according to the movement of the sun.

FIG. 9 shows the area of the direct light incident on the building in which the automatic light shield 1 is installed when the window 10 of the building is installed to the west and the sun is at a relatively high altitude in the west direction. Most of the area is exposed to direct sunlight. That is, since the altitude of the sun is relatively high, the light is not obscured by other buildings 91, so that most of the windows are exposed. At this time, the automatic light shielding device 1 installed on the upper part of the building window 10 lowers the light blocking member 16 by using the elevating member 30 to cover the front window exposed to direct sunlight.

In particular, the light blocking member 16 is lowered only up to the first limit switch 11 and only up to the second limit switch 31.

FIG. 10 illustrates a case in which the sun is positioned at an intermediate altitude, unlike in FIG. 9, in which direct sunlight is applied to another building 91 so that only a part of the window 10 is illuminated. Therefore, the light blocking member 16 covering the front of the window in FIG. 9 is moved up and down by sensing the boundary of light.

FIG. 11 illustrates when the sun is located at a low altitude unlike in FIG. 9, in which most of the direct light is covered by other buildings, and only a part of the poles is reflected on the window. The member 16 is raised to the boundary of light in accordance with the output of the sensor unit 20.

9 to 11 are installed in the upper direction of the window 10, the automatic light shielding device 1 of the present invention in a building installed in the west or north direction of the window, and blocks the direct light incident according to the altitude of the sun. That is, the elevating member 30 lowers the light blocking member 16 to cover the front of the window 10 and gradually covers only a part of the window 10.

By installing and operating the automatic shading device 1 on the upper end, there is an advantage that can be blocked more efficiently in direct sunlight according to the installation direction of the window (10).

12 is a view showing a lifting member 200 of the automatic light shielding device 2 according to another embodiment of the present invention, FIG. 13 is a view showing a state where the light blocking member is lowered by the lifting member, and FIG. As a result, the light blocking member is completely lowered.

12 to 14, the automatic light shielding device 2 according to another embodiment of the present invention is different from the lifting member 30 of FIGS. 1 to 11, which is an embodiment of the present invention, instead of the wire 32. ) To raise and lower the light blocking member 210.

The lifting member 200 of the automatic light shielding device 2 according to another embodiment of the present invention has a fixing rod 100 for fixing the upper end of the light blocking member 210, and a lower end of the light blocking member 210 has a spiral spring 222. Winding rods 220 fixed by the lower link, the lower link 310 is rotated by the drive motor 340, the lower end and the upper end of the lower link 310 and the end of the fixing rod 100 It is configured to include a link member 300 consisting of an upper link 340, each of the axis combination (330; axis combination).

Description of the light blocking member 210 is the same as in FIG. 1 and will be omitted.

The fixing rod 100 is positioned at the upper end of the light blocking member 210 and moved up and down by the control of the link member 300. In particular, although not shown, the outer side of the fixing rod 100 is provided with a sensor unit 20 composed of the upper light sensor 22 and the lower light sensor 24 shown in FIGS. 1 to 11.

Description of the winding rod 220 is omitted because it is the same as FIG.

The link member 300 is positioned between the winding rod 220 and the fixed rod 100 to raise and lower the light blocking member 210. More specifically, both upper ends of the lower link 310 are axially coupled to both lower ends of the upper link 320, respectively, and both lower ends of the lower link 310 are respectively rotated by the driving motor 340. do. In addition, both upper ends of the upper link 320 is axially coupled to the fixing rod 100 (342).

In particular, the description of the method of controlling the elevating member 200 according to the amount of light received by the outer sensor portion of the fixed rod according to another embodiment of the present invention is omitted because it is the same as the control method of the elevating member 30 of FIGS. 1 to 11. do.

When the direct light is incident on the front surface of the window where the automatic light shielding device 2 is installed, the portion where the lower link 310 and the upper link 320 are axially coupled 330 is 180 degrees as shown in FIG. 8. It becomes a straight axial coupling to form, the fixing rod 100 coupled to the upper portion of the light blocking member 210 is raised to block the direct light incident from the outside by the light blocking member 210. In addition, most of the light blocking member 210 wound by the spiral spring 222 of the winding rod 220 is in a released state.

FIG. 13 illustrates a state in which a lower portion of the lower link 310 rotated by the driving motor 340 is rotated inward, when only a part of the window is directly exposed to light, and the lower link 310 is rotated by the lower link 310. 310 and the upper link 320 is the shaft coupling portion 330 is an angle. As the axially coupled portion 330 forms an angle, the fixing rod 100 descends downward. That is, the more the lower end of the lower link 310 rotated by the drive motor 340, the more the angle of the shaft coupling 330 of the upper end of the lower link 310 and the lower end of the upper link 320 is Becomes smaller. As the angle of the shaft coupling 330 decreases, the fixing rod 100 descends downward, and as the fixing rod 100 descends, a part of the light blocking member 210 is wound around the winding rod 220. It is wound by the spiral spring (222). Therefore, the field of view is enlarged as the winding rod 220 descends, so that the display items inside are advertised to the outside.

FIG. 14 illustrates a day or night of no sun when no direct sunlight is incident. When the direct light is not incident, the lower end of the lower link 310 rotated by the driving motor 340 is the winding rod 220. It rotates in a parallel inward direction, the upper link 320 and the lower link 310 is close to overlapping, the light blocking member 210 fixed to the fixing rod 100 is a spiral of the winding rod 220 Most of the front surface is wound by the spring 222. Therefore, as the light blocking member is wound around the spiral spring 222, the fixing rod 100 is lowered and the field of view is enlarged as the fixing rod 100 is lowered.

The automatic shading device according to the present invention may be installed in a rear window of a car as well as a window in a building, and automatically blocks direct light incident through the rear window of the car, thereby preventing a driver or a passenger inside the car from being exposed to direct light. There is an advantage to avoid.

In addition, when direct light is not incident, the occupant or driver may further expand the field of view by lowering the light blocking member by using the elevating member.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

As described above, the automatic light shielding device of the present invention detects the boundary of the direct light with a light sensor so that the light blocking member is automatically positioned in the light boundary. The field of view can be enlarged by protecting the goods displayed at in direct sunlight, and by not placing a light shielding member where the direct light does not shine. That is, the automatic light shielding device has an advantage that the viewing angle can be enlarged while blocking direct light.

In particular, the present invention, the automatic shading device can be freely operated in the automatic mode or the manual mode, it is convenient because it does not require cumbersome management by positioning the light blocking member to automatically track direct light when operating in the automatic mode.

In addition, by installing the automatic light shielding device of the present invention inside the rear window of the vehicle, there is an effect of preventing the driver or passengers from being exposed to direct sunlight to see the damage such as glare, burns and heat.

In particular, in the case of the display of the interior of the building only by blocking the direct light there is an effect that can prevent the fading, decay, and damage of the display.

Claims (5)

delete A light blocking member; An elevating member for elevating the light blocking member up and down; A sensor unit including an upper optical sensor and a lower optical sensor positioned below the upper optical sensor and installed at an end of the light blocking member; And a control unit controlling the elevating member according to the amount of light received by the upper optical sensor and the lower optical sensor, respectively. The light blocking member is installed at a lower end or an upper end of the light shielding glass, The controller controls the lifting member to raise the light blocking member when the amount of light received by the upper optical sensor and the lower optical sensor is greater than a reference light amount, If the amount of light received by the upper light sensor and the lower light sensor, respectively, is less than or equal to the reference light amount, the lifting member is controlled so that the light blocking member is lowered, And when the amount of light received by the upper optical sensor is less than or equal to the reference light amount and the amount of light received by the lower optical sensor is greater than or equal to the reference light amount, controlling the lifting member to stop the light blocking member. Automatic shading made. The method of claim 2, wherein the lifting member Wires having one end fixed to both upper ends of the light blocking member; A roll pole having a lower end or an upper end of the light blocking member fixed thereto and having a spiral spring mounted at one or both ends thereof; And a drive motor having a roll pully to which the other end of the wire is fixed to a rotation shaft and to which the wire is selectively wound. The method of claim 2, wherein the upper end of the light blocking member is fixed to the fixing rod, The lifting member has a lower end of the light blocking member is fixed, the winding rod is mounted on one or both ends of the spiral spring; And a link member formed of a lower link whose lower end is rotated by a drive motor, and an upper link whose lower end and upper end are axially coupled to an upper end of the lower link and an end of the fixing rod, respectively. Automatic shading made. The remote control receiver according to any one of claims 2 to 4, further comprising a remote control receiver for receiving a control signal transmitted from the remote control, And the control unit controls the lifting member according to a control signal received from the remote control receiver.

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