KR102176857B1 - Projector case - Google Patents

Abstract

The present invention relates to a projector enclosure, and more particularly, to a projector enclosure capable of effectively protecting an expensive projector from an external environment.
In addition, according to the present invention, a housing provided with a closed space for accommodating a projector and a projection glass on a surface facing the lens unit of the projector; A cooling and heating unit coupled to the rear surface of the housing and discharging air of a predetermined temperature inside the housing; A connecting part connected to the projector and including a rotating part that can be rotated up, down, left and right; A rail portion coupled to the lower side of the housing; A mounting portion coupled to an upper portion and a lower portion mounted to the rail portion; And a dust removal device for removing dust from the projection glass.

Description

Projector enclosure {PROJECTOR CASE}

The present invention relates to a projector enclosure, and more particularly, to a projector enclosure capable of effectively protecting an expensive projector from an external environment.

A projector is a type of optical device that projects an image magnified through a lens unit onto a screen. It is widely used in educational institutions, corporations, and homes because of the advantage of displaying a large screen regardless of indoors or outdoors wherever a screen can be installed.

On the other hand, in the case of a large projector mainly operated outdoors, there is a problem that it may cause fatal damage to expensive equipment because it is always exposed to the external environment.

Accordingly, there is a need for a new type of projector enclosure that can protect a large projector, which is an expensive equipment, from an external environment.

Korean Patent Publication No. 10-0642598 Korean Patent Publication No. 10-2001-0001722 Japanese Unexamined Patent Application Publication No. 2004-029356

The present invention was conceived to solve the above-described problems, and an object of the present invention is to provide a projector enclosure capable of protecting a large projector from an external environment.

In addition, it is to provide a projector enclosure that can easily adjust the projection angle of the projector and detachment of the projector.

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

The present invention is provided with a closed space for accommodating a projector, and a housing provided with a projection glass on a surface facing the lens unit of the projector; A cooling and heating unit coupled to the rear surface of the housing and discharging air of a predetermined temperature inside the housing; A connecting part connected to the projector and including a rotating part that can be rotated up, down, left and right; A rail portion coupled to the lower side of the housing; A mounting portion coupled to an upper portion and a lower portion mounted to the rail portion; And a dust removal device for removing dust from the projection glass.

In addition, the present invention further includes a system controller that controls the heating and cooling unit according to the temperature or humidity inside the housing.

In addition, the system control unit of the present invention receives a forecast temperature from a weather forecast server and controls the heating and cooling unit to an operating temperature changed according to the input forecast temperature.

In addition, the system control unit of the present invention receives the forecast temperature from the weather forecast server and controls the heating and cooling unit with the operating temperature changed according to the input forecast temperature, and the measured temperature measured by the environment sensor unit is If there is a difference by more than a certain amount, the cooling and heating unit is driven at a corrected temperature obtained by correcting the operating temperature.

In addition, the system controller of the present invention receives the forecast humidity from the weather forecast server and controls the heating and cooling unit with the operating humidity changed according to the input forecast humidity.

In addition, the system control unit of the present invention receives the forecast humidity from the weather forecast server and controls the set humidity as the operating humidity changed according to the input forecast humidity, and the measured humidity measured by the environmental sensor unit is more than a certain difference from the forecast humidity. If there is, the cooling and heating unit is driven with the corrected humidity corrected for operating humidity.

In addition, the housing of the present invention further includes at least one hinge portion coupled to a corner where the rear surface and the side surface of the housing meet, and the rear surface of the housing rotates around the hinge portion to be opened and closed.

In addition, the rail part of the present invention is extendable outside the housing.

In addition, the dust removal apparatus of the present invention includes a window brush installed to enable rotational movement on the projection glass; A spray nozzle for spraying a washer liquid onto the projection glass; And a system controller configured to remove contaminants from the projection glass by rotating the window brush after spraying the washer liquid through the spray nozzle when the projection glass is contaminated by dust.

In addition, the dust removal device of the present invention includes solenoid valves (5) (5') connected to be opened and closed by a switch connected to the battery; A nozzle 7 branched from the pipe 6 installed on the top of the projection glass and installed downward to face the projection glass and the front glass of the projector; An air compressor (10) in which one pipe branched from the pipe (6) is connected with the solenoid valve (5) therebetween; A water tank 11 to which another pipeline branched from the pipe 6 is connected with the solenoid valve 5 therebetween; A pump 6 connected to the water tank 11; And a system controller configured to remove contaminants from the projection glass by spraying air and water through the nozzle when the projection glass is contaminated by dust.

In addition, one contact point of the switch of the present invention is connected to the battery 13, the opposite contact point is divided into three, and the branched first contact point 2 and the third contact point 4 coincide with each other so that the solenoid valve 5 ), the branched second contact (3) is connected to the control end of the solenoid valve (5'), and when the switch (1) is pressed once more while connected to the second contact (3) The third contact point and the third contact point are configured in two stages so as to be connected to the second contact point 3 and the third contact point 4 together.

In addition, an air tank 8 is connected through a pipe between the air compressor 10 and the solenoid valve 5 of the present invention.

In addition, it further comprises a transmittance measuring device for measuring the visible light transmittance of the front glass and the projection glass of the present invention, the system control unit by using the transmittance measured by the transmittance measuring device to remove dust from the front glass and the projection glass Judge whether or not.

In addition, the transmittance measuring apparatus of the present invention includes a left side sensor unit for transmitting a laser beam to the front glass and obtaining a reflected laser; A right side sensor unit that transmits a laser beam to the projection glass and obtains a reflected laser; And measuring the reflectance of the front glass from the reflected laser obtained by the left side sensor unit, predicting the transmittance of the front glass based on the measured reflectance, and reflecting the projection glass from the reflected laser obtained by the right side sensor unit. And a signal processing control unit that measures and predicts transmittance of the projection glass based on the measured reflectance.

In addition, the signal processing control unit of the present invention comprises a front glass signal processing unit for measuring the reflectance of the front glass by analyzing the signal intensity distribution of the laser beam reflected with respect to the laser beam transmitted from the left side sensor unit; A projection glass signal processing unit for measuring a reflectance of the projection glass by analyzing a signal intensity distribution of the laser beam reflected with respect to the laser beam transmitted from the right side sensor unit; And a measurement control unit that predicts transmittance of the front glass and the rear glass based on the reflectance measurement results of the front glass and the projection glass, and controls the system control unit to perform an operation for removing dust based on the prediction result.

According to the projector enclosure according to an embodiment of the present invention described above, even when the projector is operated outdoors, it is possible to achieve an effect of preventing damage to an expensive projector by an external environment.

1 is a side perspective view of a projector enclosure according to an embodiment of the present invention.
2 is a perspective view as viewed from the top of the projector enclosure according to an embodiment of the present invention.
3 is a view for explaining a process of opening the projector enclosure 100 according to an embodiment of the present invention.
4 is a view for explaining a process of moving an internal projector to the outside of a projector enclosure in a state in which one surface of a housing is open according to an embodiment of the present invention.
5 is a diagram for explaining a forecast temperature, a measurement temperature, a set temperature, an operation temperature, and a correction temperature in FIG. 1.
FIG. 6 is a diagram for explaining forecast humidity, measurement humidity, set humidity, operation humidity, and correction humidity in FIG. 1.
7 is an installation state diagram of a dust removal device according to an embodiment of the present invention.
8 is a diagram illustrating an installation state of a dust removal device according to another embodiment of the present invention, in which (6a) is a front view of a projection glass, and (6b) is a front view of the front glass of the projector.
9 is a circuit diagram of a dust removal apparatus according to another embodiment of the present invention.
Fig. 10 is a configuration diagram of an apparatus for measuring a transmittance of a front glass and a projection glass.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments to be posted below, but may be implemented in a variety of different forms, and only these embodiments make the posting of the present invention complete, and common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have, and the invention is only defined by the scope of the claims. The same reference numerals refer to the same components throughout the specification.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used as meanings that can be commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not interpreted ideally or excessively unless explicitly defined specifically.

In addition, in the present specification, the singular form may also be included in the plural form unless specifically stated in the phrase. As used in the specification, "comprises" and/or "comprising" refers to the presence of one or more other components, steps, actions and/or elements, and/or elements, steps, actions and/or elements mentioned. Or does not exclude additions.

1 is a side perspective view of a projector enclosure according to an embodiment of the present invention.

The projector enclosure 100 according to an embodiment of the present invention includes a housing 110, a projection glass 120, a cooling and heating unit 130, a connection unit 140, a rail unit 150, a mounting unit 160, and a system. It includes a control unit 165. The system controller 165 may receive weather forecast information from the weather forecast server 166.

The housing 110 has an enclosed space accommodating the projector 200.

In the housing 110 according to an embodiment of the present invention, as shown in FIG. 1, a surface of the projector 200 facing the lens may be inclined at a predetermined angle. In this case, the surface of the housing 110 facing the lens of the projector 200 may be provided with a projection glass 120 through which light emitted from the projector 200 can be projected.

Meanwhile, a square hole may be formed at the rear of the housing 110 so that the heating and cooling unit 130 is installed.

The housing 110 according to an embodiment of the present invention may be made of a cold rolled steel sheet to implement waterproofing and protect the internal projector 200 from dust and other dirt. In addition, a sound absorbing agent may be attached to the inside of the housing 110 to block outflow of noise generated by the projector 200 to the outside.

The cooling and heating unit 130 is coupled to the rear surface of the housing 110 and discharges air of a preset temperature inside the housing 110. The cooling/heating unit 130 maintains a constant temperature inside the housing 110 to maintain a constant temperature and humidity.

Accordingly, even when the projector 200 is operated outdoors, it is possible to achieve an effect of preventing damage to the expensive projector 200 by an external environment.

Meanwhile, the cooling and heating unit 130 according to an embodiment of the present invention may be implemented in a simple fan method to discharge air inside the housing 110 to the outside, or may introduce external air into the housing 110.

To this end, the cooling and heating unit 130 according to an embodiment of the present invention may be provided with an impeller for introducing external air. The impeller consists of a plurality of blades and may introduce external air to the outside of the housing 110 or discharge the air inside the housing 110 to the outside according to a rotation direction.

The projector 200 is mounted on the connection part 140. The connection part 140 according to an embodiment of the present invention may be connected to the mounting part 160 at the top of the rail part, which will be described below.

Since the connection unit 140 includes a rotating unit (not shown) that can be adjusted vertically, left and right, when the projector 200 is mounted on the connection unit 140, the projector 200 can be adjusted vertically and horizontally.

The rail unit 150 is installed under the housing 110. In addition, a mounting unit 160 to which a wheel is connected to the lower side of the rail unit 150 is mounted. Accordingly, as the mounting unit 160 moves along the rail unit 150, the position of the projector 200 may be changed to the front or rear surface of the housing 100.

Meanwhile, the projector enclosure 100 according to an embodiment of the present invention includes a system controller 165. The system controller 165 may control the air conditioning unit 130 according to the measured temperature or humidity inside the housing 110 to maintain a constant environment inside the housing 110.

For example, when the temperature inside the housing 110 exceeds a preset temperature, the cooling and heating unit 130 may be controlled to cool the interior of the housing 110. Conversely, when the temperature inside the housing 110 is less than a preset New Year's Day temperature, the cooling and heating unit 130 may be controlled to generate warm air.

According to another embodiment of the present invention, even when the cooling/heating unit 130 is implemented as a simple blowing fan, forced intake or exhaust may be performed by changing the rotation direction of the blowing fan according to the temperature inside the housing 110.

Specifically, the system controller 165 according to an embodiment of the present invention senses the temperature inside the housing 110, and when the internal temperature of the housing 110 exceeds a preset temperature, external air is transferred into the housing 110. The cooling and heating unit 130 may be controlled so as to be introduced.

As described above, if the rotation direction of the blowing fan is changed according to the temperature inside and outside the housing 110 so that forced intake or exhaust is performed, the effect of maintaining the internal environment of the housing 110 in an optimal state can be achieved. .

Meanwhile, the system controller 165 receives daily forecast temperature and forecast humidity from the weather forecast server 166.

And, as shown in FIG. 5, the system controller 165 reduces the operating temperature in proportion to the difference when there is a difference of 10 degrees or more from the set temperature (for example, 13 degrees), and this temperature difference is less than 10 degrees. Persist.

At this time, the system control unit 165 receives the external measured temperature through the environmental sensor unit 1140 (see FIG. 10), and if the measured temperature is 3 degrees or more apart from the forecast temperature, the operating temperature is reflected by reflecting the measured temperature. Operate with a further reduced correction temperature.

This is to prevent various losses due to frequent changes in operating conditions when the measured temperature is reflected only when the temperature exceeds the forecast temperature.

And, as shown in Figure 6, the system control unit 165 reduces the operating humidity in proportion to the difference when there is a difference of 30% or more in the set humidity (for example, 30%), and this humidity difference is less than 30%. Persist.

At this time, the system control unit 165 receives external measured humidity through the environment sensor unit 1140 (see FIG. 10), and if the measured humidity is 3% or more apart from the forecast humidity, the operating humidity is reflected by reflecting the measured humidity. Operate with a further reduced correction humidity.

This is to prevent various losses due to frequent changes in operating conditions when the measured humidity is reflected only when it is more than a certain level than the forecast humidity.

Using the projector enclosure 100 according to an embodiment of the present invention described above, it is possible to achieve the effect that it is possible to efficiently protect the projector 200, which is an expensive equipment from the external environment, and to increase the convenience of operation. have.

2 is a perspective view as viewed from the top of the projector enclosure according to an embodiment of the present invention.

A projection glass 120 through which light generated from the projector 200 can be transmitted is disposed on the front of the projector enclosure 100 according to an embodiment of the present invention, and the temperature or humidity inside the housing 110 is controlled at the rear. The heating and cooling unit 130 is positioned to keep it constant.

As shown in FIG. 2, the cooling/heating unit 130 according to an exemplary embodiment of the present invention may be of a double suction multi-wing type in which a part is located inside the housing 110 and a part is located outside the housing 110. Accordingly, when the interior of the housing 110 is cooled, the hot air may be discharged to the outside of the projector enclosure 100.

In addition, the rail unit 150 may be mounted on both sides of the bottom surface of the housing 110 as shown in FIG. 2. Accordingly, the mounting unit 160 to which the projector 200 is coupled may be moved to the front or the rear of the projector enclosure 100 along the rail unit 150 on both sides.

The large projector 200 used outdoors is not only bulky and heavy compared to a general projector, so it is not easy to take the projector 200 out of the projector enclosure 100 for management, so the rail unit 150 ) To move the mounting unit 160 on which the projector 200 is mounted, thereby promoting user convenience.

Meanwhile, in the projector enclosure 100 according to an embodiment of the present invention, a part of the housing 110 may be closed so that the projector 200 accommodated therein can be easily taken out.

3 is a view for explaining a process of opening the projector enclosure 100 according to an embodiment of the present invention.

The rear surface of the housing 110 according to an embodiment of the present invention may include a hinge portion (not shown) to open the rear surface. Specifically, as illustrated in FIG. 3, at least one hinge portion may be coupled to a corner connected to the side surface and the rear surface.

Accordingly, the rear surface of the housing 110 may be opened by rotating around the hinge portion. Accordingly, it is possible to allow a user to take out the projector 200 accommodated in the projector enclosure 100 to the outside. In addition, a part of the housing 110 may be opened to ventilate the interior.

Meanwhile, in FIG. 3, the rear surface of the housing 110 is opened as an example, but the open surface is not limited thereto, and the side or upper portion of the housing 110 may be opened. In addition, the opening method may also adopt a sliding method rather than a method using a hinge part.

4 is a view for explaining a process of moving an internal projector to the outside of a projector enclosure in a state in which one surface of a housing is open according to an embodiment of the present invention.

As shown in FIG. 4, when the rear of the housing 110 is opened and the projector 200 is pulled to the rear, the mounting unit 160 to which the projector 200 is fixed moves to the rear along the rail unit 150 Is done.

At this time, the rail unit 150 according to an exemplary embodiment of the present invention may extend outside the projector enclosure 100. Accordingly, it is possible to easily move the projector 200 to the outside of the projector enclosure 100 along the rail unit 150 extended to the outside of the projector enclosure 100.

Conversely, when the projector 200 is pushed in the interior direction of the housing 110, the extended rail unit 150 is retracted, and the projector 200 can be moved inside along the rail unit 150.

Accordingly, it is possible to achieve the effect that the user can easily move the projector 200 inside and outside the projector enclosure 100.

On the other hand, as shown in FIG. 7, a window brush 170 is installed in the outer center of the surface of the housing 110 facing the lens of the projector 200 to enable rotational movement, so that a wiper motor (not shown) during rainfall ) To rotate the window brush 17 so that water droplets formed on the projection glass 120 are removed, and when the projection glass 120 is contaminated with dust or the like, the washer liquid is sprayed through the spray nozzle. Afterwards, the window brush 170 is rotated and shaken so that the contaminants on the projection glass 120 are removed.

8 is a state diagram of an installation of a dust removal device according to another embodiment of the present invention, (6a) is a front view of the projection glass, (6b) is a front view of the front glass of the projector, and Figure 9 is a further embodiment of the present invention. As a circuit diagram of the dust removing device according to the above drawing, solenoid valves 5 and 5 ′ connected to be opened and closed by a switch connected to the battery 13, and a housing facing the lens of the projector 200 A number of nozzles 7 branched from the pipe 6 installed on the top of the projection glass 120 in the outer center of the surface of 110 and installed downward toward the projection glass 120, and the pipe 6 An air compressor (10) in which one pipe branched from) is connected with the solenoid valve (5) therebetween, and another pipe passage branched from the pipe (6) is connected to the solenoid valve (5). It consists of a pump (9) connected to the water tank (11) to be connected to.

One contact point of the switch is connected to the battery 13, the opposite contact point is divided into three, and the branched first contact point (2) and the third contact point (4) are matched to each other to be connected to the control terminal of the solenoid valve (5). The connected and branched second contact (3) is connected to the control terminal of the solenoid valve (5'), and when the switch (1) is pressed once more while connected to the second contact (3), the second contact (3) The third contact point and the third contact point are composed of two stages so as to be connected to the third contact point 4 together.

An air tank 8 is connected between the air compressor 10 and the solenoid valve 5 by a pipe to store compressed air and then supply it to the nozzle 7 through the pipe.

In addition, check valves 12 and 12 ′ are respectively installed in the pipeline between the solenoid valve 5 and the solenoid valve 5 ′ and the pipe 6 so that the water flows back to the air compressor 10 or the pump 9 ) Can be configured so that air does not flow back.

In addition, the pipe 6 to which the nozzle 7 is branched may be installed downward so that it faces the front glass 210 from the top of the front glass 210 of the projector 200.

The operation and effect of the apparatus of the present invention configured as described above are as follows.

Since water is sufficiently supplied to the projection glass 120 during rainfall, cleaning is possible even by supplying compressed air without a separate water supply in order to remove dust on the projection glass 120 together with water.

When the system controller 165 operates the switch 1 to be connected to the first contact point 2, the control terminal of the solenoid valve 5 is energized, so the solenoid valve 5 is turned on, and accordingly, the air compressor 10 And compressed air supplied from the air tank 8 is sprayed from the nozzle 7 through the solenoid valve 5 and the pipe 6, and the compressed air thus sprayed is the projection glass 120 and the front glass of the projector. It is possible to secure a clean view because the water droplets and dust on the (210) are removed while blowing downward.

In addition, a separate water supply is required to clean the projection glass 120 in normal times. When the system controller 165 operates the switch 1 to connect it to the second contact point 3, the solenoid valve 5' The solenoid valve (5') is turned on because the control terminal of is energized, and accordingly, the high pressure water supplied from the pump (9) connected to the water tank (11) passes through the solenoid valve (5) and the pipe (6). ), so it is sprayed on the upper surface of the projection glass 120 and the front glass 210 of the projector. At this time, the system control unit 165 operates a separate switch (not shown) to operate the window brush ( 170), the dust on the upper part of the window is removed with water. In addition, when the system control unit 165 pushes the switch 1 once more so that it is connected to the third contact point 4 while being connected to the second contact point 3, the control end of the solenoid valve 5 is also energized and the solenoid valve 5 ) Is ON together with the solenoid valve 5', so that compressed air is sprayed with high pressure water through the nozzle 7 to clean the projection glass surface even if the window brush 170 is not operated.

Meanwhile, the system controller 165 measures the transmittance of the front glass 210 and the projection glass 120 of the projector, and operates to remove dust when the transmittance is low.

The transmittance may be measured using the transmittance measuring apparatus 1000, and includes a sensor unit 1100, a signal processing control unit 1200, and an online information service unit 1300.

The sensor unit 1100 includes a left side sensor unit 1120, a right side sensor unit 1130, and an environment sensor unit 1140.

The sensor unit 1100 may be installed between the front glass 210 and the projection glass 120 of the projector.

The left side sensor unit 1120 includes a left laser scanner 1122 for inspecting the front glass.

The right side sensor unit 1130 includes a right laser scanner 1132 for inspecting the projection glass 120.

The normal human eye detects light in the visible range of 400 to 700 nm. In addition, the most visible wavelength to the human eye is 555nm, which is a wavelength range close to green. Therefore, the left laser scanner 1122 and the right laser scanner 1132 have a single wavelength near 555 nm, which has higher visibility than the entire visible light wavelength region, or a laser having a single or multiple wavelengths in the RGB (red, green, blue) region. A pulsed beam (hereinafter referred to as "laser beam") is transmitted, and a laser beam reflected and received by the front glass 210 and the projection glass 120 is detected.

The left laser scanner 1122 and the right laser scanner 1132 transmit a laser beam, and detect a laser beam reflected by the front glass 210 and the projection glass 120 and received.

The environment sensor unit 1140 includes a plurality of detection sensors 1142 for monitoring weather and atmospheric conditions. For example, the plurality of detection sensors 1141 may include a temperature sensor, a humidity sensor, a rain sensor, an air pressure sensor, a fine dust sensor, and the like.

The signal processing control unit 1200 includes a front glass signal processing unit 1240, a projection glass signal processing unit 1250, a detection sensor signal processing unit 1260, and a measurement control unit 1270.

The front glass signal processing unit 1240 measures the reflectance of the front glass 210 by analyzing a signal intensity distribution of the laser beam reflected with respect to the laser beam transmitted from the left laser scanner 1122.

The projection glass signal processing unit 1250 measures the reflectance of the projection glass by analyzing the signal intensity distribution of the laser beam reflected with respect to the laser beam transmitted from the right laser scanner 1132.

The detection sensor signal processing unit 1260 determines a wake-up (atmospheric) state over time based on detection information from the plurality of detection sensors 1142 of the environment sensor unit 1140.

The measurement control unit 1270 predicts the transmittance of the front glass and the rear glass based on the reflectance measurement result of the front glass and the projection glass by the signal processing control unit 1200, and the system control unit 165 performs dust removal based on the prediction result. It controls to perform necessary operations. The measurement control unit 1270 stores transmittance information.

In predicting the transmittance of the front glass and the projection glass, the measurement control unit 1270 calculates loss characteristics due to absorption and scattering of laser light in the atmosphere based on the atmospheric state detected by the detection sensor signal processing unit 1260, and signal processing. The reflectance may be corrected by reflecting the predicted loss characteristic to the reflectance measured by the controller 1200, and the transmittance may be predicted based on the corrected reflectance.

The online information service unit 1300 provides an online service based on the transmittance of each glass obtained by the signal processing control unit 1200.

Those of ordinary skill in the technical field related to the present embodiment will appreciate that it may be implemented in a modified form without departing from the essential characteristics of the above-described description. Therefore, the disclosed methods should be considered from an explanatory point of view rather than a limiting point of view. The scope of the present invention is shown in the claims rather than the above description, and all differences within the scope equivalent thereto should be construed as being included in the present invention.

110: housing 120: projection glass
130: air conditioning unit 140: connection unit
150: rail unit 160: mounting unit
165: system control unit 166: weather forecast server

Claims (15)

A housing having an enclosed space for accommodating a projector and having a projection glass on a surface facing the lens unit of the projector;
A cooling and heating unit coupled to the rear surface of the housing and discharging air of a predetermined temperature inside the housing;
A connecting part connected to the projector and including a rotating part that can be rotated up, down, left and right;
A rail portion coupled to the lower side of the housing;
A mounting portion coupled to an upper portion and a lower portion mounted to the rail portion; And
It consists of a dust removal device for removing dust from the projection glass,
The dust removal device
Solenoid valves (5) (5') connected to be opened and closed by a switch connected to the battery;
A nozzle 7 branched from the pipe 6 installed on the top of the projection glass and installed downward to face the projection glass and the front glass of the projector;
An air compressor (10) in which one pipe branched from the pipe (6) is connected with the solenoid valve (5) therebetween;
A water tank 11 to which another pipeline branched from the pipe 6 is connected with the solenoid valve 5 therebetween;
A pump 6 connected to the water tank 11; And
When the projection glass is contaminated by dust, the projector enclosure further comprises a system controller configured to remove contaminants from the projection glass by spraying air and water through the nozzle. The method of claim 1,
The projector enclosure further comprises a system controller for controlling the heating and cooling unit according to the temperature or humidity inside the housing. The method of claim 2,
The system control unit receives a forecast temperature from a weather forecast server and controls the cooling and heating unit to an operating temperature changed according to the received forecast temperature. The method of claim 2,
The system controller receives the forecast temperature from the weather forecast server and controls the heating and cooling unit with the operating temperature changed according to the input forecast temperature, and if the measured temperature measured by the environmental sensor unit is different from the forecast temperature by a certain amount or more, A projector enclosure that drives the cooling and heating unit at a corrected operating temperature. The method of claim 2,
The system control unit receives the forecast humidity from the weather forecast server and controls the cooling and heating unit with the operating humidity changed according to the received forecast humidity. The method of claim 2,
The system control unit receives the forecast humidity from the weather forecast server and controls the set humidity as the operating humidity changed according to the input forecast humidity. If the measured humidity measured by the environmental sensor unit is different from the forecast humidity by a certain amount, the operating humidity is adjusted. A projector enclosure that drives the air conditioning unit with the corrected humidity. The method of claim 1,
The housing,
Further comprising at least one hinge portion coupled to a corner where the rear and side surfaces of the housing meet,
A projector enclosure in which the rear of the housing can be opened and closed by rotating around the hinge part. The method of claim 7,
The rail part,
A projector enclosure extendable outside the housing. The method of claim 1,
The dust removal device
A window brush installed on the projection glass to enable rotational movement;
A spray nozzle for spraying a washer liquid onto the projection glass; And
When the projection glass is contaminated by dust, a system controller configured to rotate and swing the window brush after spraying a washer liquid through the spray nozzle to remove contaminants from the projection glass. delete The method of claim 1,
One contact point of the switch is connected to the battery 13 and the opposite contact point is divided into three. The connected and branched second contact (3) is connected to the control terminal of the solenoid valve (5'), and when the switch (1) is pressed once more while connected to the second contact (3), the second contact (3) The projector enclosure, characterized in that the third contact point and the third contact point are configured in two stages so as to be connected to the third contact point (4) together. The method of claim 11,
An air tank (8) is connected between the air compressor (10) and the solenoid valve (5) through a pipe. The method of claim 1,
Further comprising a transmittance measuring device for measuring the visible light transmittance of the front glass and the projection glass,
The system controller determines whether or not dust is removed from the front glass and the projection glass by using the transmittance measured by the transmittance measuring device. The method of claim 13,
The transmittance measuring device
A left side sensor unit for transmitting a laser beam to the front glass and obtaining a reflected laser;
A right side sensor unit that transmits a laser beam to the projection glass and obtains a reflected laser; And
The reflectance of the front glass is measured from the reflected laser obtained by the left side sensor unit, the transmittance of the front glass is predicted based on the measured reflectance, and the reflectance of the projection glass is calculated from the reflected laser obtained by the right side sensor unit. A projector enclosure including a signal processing control unit that measures and predicts transmittance of the projection glass based on the measured reflectance. The method of claim 14,
The signal processing control unit
A front glass signal processing unit for measuring a reflectance of the front glass by analyzing a signal intensity distribution of the laser beam reflected with respect to the laser beam transmitted from the left side sensor unit;
A projection glass signal processing unit for measuring a reflectance of the projection glass by analyzing a signal intensity distribution of the laser beam reflected with respect to the laser beam transmitted from the right side sensor unit; And
A projector enclosure comprising a measurement control unit that predicts transmittance of the front glass and the rear glass based on the reflectance measurement results of the front glass and the projection glass, and controls the system control unit to perform an operation for removing dust based on the prediction result.

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