KR101821018B1 - Case for projector - Google Patents

Abstract

The present invention discloses a projector case. The present invention includes a body portion having a projector disposed therein, a transmission portion provided on the body portion to transmit light emitted from the projector to the outside, and a cleaning portion provided on the body portion to remove foreign substances from the transmission portion do.

Description

Projector case {CASE FOR PROJECTOR}

The present invention relates to an apparatus, and more particularly, to a projector case.

The projector is a device that transmits external information by transmitting external data to the screen. The projector may be installed indoors, and may be installed on a wall or ceiling of a building. In addition, the projector may be installed externally, and the projector may be installed to be fixed to a separate structure or may be installed so as to be seated on an external object.

In such a case, the projector can be easily exposed to foreign substances. At this time, if a foreign object is caught in a lens provided in the projector, the projector can not correctly project light onto the screen, which may cause an image to be broken or the sharpness of the image to be lowered. To prevent the performance degradation of such a projector, a device for protecting the projector may be required.

Embodiments of the present invention provide a projector case that prevents malfunction of a projector while protecting external foreign materials when the projector is used.

According to an aspect of the present invention, there is provided an image display apparatus including: a body portion having a projector disposed therein; a transmission portion that is provided in the body portion and transmits light emitted from the projector to the outside; A projector case including a cleaning portion can be provided.

The cleaning unit may include a rotating unit rotatably fixed to the body, a foreign matter removing unit rotatably mounted on the rotating unit, and a driving unit connected to the rotating unit to rotate the rotating unit.

The foreign matter removing unit may include a brush.

The driving unit may include a rotation plate connected to the rotation unit, and a rotation driving unit connected to the rotation plate to rotate the rotation plate.

The rotation unit may be connected to the rotation plate to be eccentric from the rotation center of the rotation plate.

The cleaning unit may further include a connector unit connected to the driving unit and the foreign matter removing unit to move the foreign matter removing unit when the driving unit operates.

The connector unit may further include a first magnetic charger unit connected to the driving unit and rotated when the driving unit operates, a power transmission belt unit connected to the first magnetic charger unit, And a second charger unit connected to the power transmission belt unit and connected to the foreign matter removing unit.

The projector may further include a lens unit disposed between the transmissive unit and the projector.

The apparatus may further include a heat exchange unit installed in the body unit for exchanging heat between the inside and outside air of the body unit.

The heat exchanging unit may include a first heat exchanging unit exposed to the outside of the body, and a second heat exchanging unit connected to the first heat exchanging unit and disposed in the body.

The heat exchanging unit may further include a peltier element unit disposed between the first heat exchanging unit and the second heat exchanging unit.

Further, the Peltier element section may be formed such that the temperature of the second heat exchange section side is lower than the temperature of the first heat exchange section side.

Embodiments of the present invention can house the projector and protect the projector from external foreign matter. Further, the embodiments of the present invention can prevent the malfunction of the projector, which may be caused by an internal temperature rise.

1 is a perspective view showing a projector case according to an embodiment of the present invention.
2 is a sectional view showing a cross section of the projector case shown in Fig.
3 is a conceptual view showing the cleaning unit shown in FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It is noted that the terms "comprises" and / or "comprising" used in the specification are intended to be inclusive in a manner similar to the components, steps, operations, and / Or additions. The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by terms. Terms are used only for the purpose of distinguishing one component from another.

1 is a perspective view showing a projector case according to an embodiment of the present invention. 2 is a sectional view showing a cross section of the projector case shown in Fig. 3 is a conceptual view showing the cleaning unit shown in FIG.

1 to 3, the projector case 100 includes a body 110, a lens unit 120, a transmission unit 130, a cleaning unit 140, a heat exchanging unit 150, a sensor unit 160, A power supply unit 170, and a control unit 180.

A space may be formed in the body part 110, and a projector P may be accommodated therein. At this time, the body 110 may be made of a synthetic resin material and may be made movable.

The lens unit 120 may be installed in the body 110. At this time, the lens unit 120 may refract the light emitted from the projector P to straighten or guide the light to a specific position.

The transmissive portion 130 may be fixed to the body portion 110. At this time, the transmissive portion 130 may be made of a transparent material such as acrylic or glass.

The cleaning unit 140 may be installed on the body 110 to remove foreign substances from the transmission unit 130. At this time, the cleaning unit 140 may be disposed outside or inside the body 110. Hereinafter, the cleaning unit 140 is disposed outside the body 110 for convenience of explanation.

The cleaning unit 140 may include a rotation unit 141, a foreign matter removing unit 142, a driving unit 143, and a connector unit 144. At this time, the rotation part 141 may be formed in a bar shape and may be fixed to the body part 110 so that one end thereof is rotatable. The portion of the rotation part 141 that is rotatably fixed to the body part 110 may form a rotation center when the rotation part 141 is moved.

The foreign substance removing unit 142 may be installed to be rotatable on the rotation unit 141. At this time, the foreign substance removing unit 142 may be installed to be rotatable in the rotation unit 141.

The foreign material removing unit 142 may include a brush 142a. At this time, the brush 142a may be formed of various materials such as animal hair, synthetic resin, natural materials, and wool.

The driving unit 143 may be connected to the rotating unit 141 to reciprocate the rotating unit 141 in a predetermined path. The driving unit 143 may include a rotating plate 143a connected to the rotating unit 141 and a rotating driving unit 143b connected to the rotating plate 143a to rotate the rotating plate 143a.

The rotation plate 143a may be formed in a plate shape and installed to be rotatable on the body 110. [ At this time, the rotary plate 143a may be installed outside or inside the body 110.

The driving unit 143 may be connected to the rotation center of the rotation plate 143a to rotate the rotation plate 143a. At this time, the driving unit 143 may include a rotation driving unit 143b for rotating the rotation plate 143a. The rotation driving unit 143b may include a motor connected to the rotation center of the rotation plate 143a.

The rotation part 141 may be connected to a part of the rotation plate 143a which is eccentric from the rotation center of the rotation plate 143a. At this time, the rotation unit 141 and the rotation plate 143a may be connected to each other by a shaft or the like so that the rotation unit 141 can rotate on the rotation plate 143a.

The connector 144 may connect the driving unit 143 and the foreign material removing unit 142. At this time, the connector 144 may be installed in the driving unit 143 and the rotating unit 141.

The connector 144 may include a first rotary part 143a on which the rotary part 141 is installed or a first rotary part 144a on the rotary part 141 connected to the rotary plate 143a. In addition, the connector 144 may include a power transmission belt 144b connected to the first magnet 144a. The connector unit 144 may include a second magnet unit 144c disposed to be spaced apart from the first magnet unit 144a. At this time, the power transmission belt part 144b may connect the first and second magnet parts 144a and 144c to transmit the rotation of the first magnet part 144a to the second magnet part 144c.

The first and second magnet units 144a and 144c may have various shapes. For example, the first magnetic charger 144a and the second magnetic charger 144c may be in the form of a pulley, a roller, or the like. In another embodiment, the first magnetic charger 144a and the second magnetic charger 144c may be formed in a gear shape. At this time, the power transmission belt portion 144b may be formed in the form of a timing belt, or may be formed in a chain shape.

The first rotation driving gear 193 may be fixed to the first magnet unit 144a. At this time, the first rotation driving gear 193 may be inserted into the rotation part 141 and may be installed on the rotation shaft 143c connected to the rotation plate 143a. The rotation shaft 143c may be inserted into the first slot 141a formed in the rotation unit 141. [ At this time, the inner surface of the first long hole 141a may be formed in the form of a gear 141b, and may be formed on the outer surface of the first rotation drive gear 193 in the form of a gear to rotate when the first long hole 141a moves . At this time, the first long hole 141a may be formed in a slot shape.

As another embodiment, it is also possible that a first long hole (not shown) is provided on the rotary plate. At this time, the rotation shaft 143c and the first rotation driving gear 193 can be installed in the first long hole. In particular, a gear may be formed on the inner surface of the first elongated hole as described above. The gear of the first elongated hole meshes with a gear formed on the outer surface of the first rotation driving gear 193, The first rotation drive gear 193 can be rotated. When the first long hole is formed in the rotary plate 143a as described above, the first long hole may be formed in the center direction from the outer peripheral surface of the rotary plate 143a, or in a straight or curved shape in the rotary plate 143a. At this time, the first long hole may be formed to have the same path as that of the rotation shaft 143c when the rotating portion 141a reciprocates according to the rotation of the rotating plate 143a. Hereinafter, for convenience of explanation, the first elongated hole 141a is formed on the rotation part 141 will be described in detail.

The second magnet unit 144c may be connected to the foreign matter removing unit 142. [ The second magnet unit 144c may be installed in the second slot 141c formed in the rotation unit 141. [ At this time, the second long hole 141c may be formed in a slot shape similar to the first long hole 141a, and may be formed long in the longitudinal direction of the rotation part 141. [

When the first long hole is formed in the rotary plate 143a, the second long hole 141c may not be formed. That is, the second magnet unit 144c may be installed inside the rotation unit 141 so as to be rotatable.

The gear unit 192 may be disposed between the second magnet unit 144c and the foreign matter removing unit 142 so as to transmit the rotation of the second magnet unit 144c to the foreign matter removing unit 142. [

The gear unit 192 may include a first gear 192a provided on the second magnet unit 144c and a second gear 192b connected to the foreign matter removing unit 142. [ At this time, the direction of motion of the first gear 192a and the second gear 192b may be vertical. For example, the first gear 192a may be a ring gear, and the second gear 192b may be a pinion gear. Therefore, when the second magnet member 144c rotates, the foreign material removing unit 142 can be rotated through the first gear 192a and the second gear 192b.

The connector 144 may include a support portion 144d connecting the rotation shaft 143c to which the first magnet unit 144a is installed and the second magnet unit 144c. At this time, the support portion 144d may be connected to be fixed to the rotation shaft 143c. The second magnet unit 144c may be rotatably connected to a part of the support portion 144d and the second elongated hole 141c may reciprocate. At this time, if the first long hole is formed in the rotary plate 143a, the support 144d may not be provided. That is, as described above, the second magnet unit 144c may be installed to be rotatable within the rotation unit 141, and the position thereof may not be variable. Hereinafter, the connector 144 will be described in detail with reference to the case where the connector 144 includes the support portion 144c for convenience of explanation.

The heat exchanging part 150 may be installed in the body part 110 to discharge the heat inside the body part 110 to the outside or to cool the inside of the body part 110. The heat exchanging unit 150 may include a first heat exchanging unit 151 installed outside the body 110 and a second heat exchanging unit 152 installed inside the body 110.

The first heat exchanging unit 151 may be formed in the form of a heat sink, a fan, or the like. The second heat exchanging part 152 may be formed in the form of a heat sink, a fan, or the like.

The heat exchanging unit 150 may further include a heat transfer unit (not shown) installed between the first heat exchanging unit 151 and the second heat exchanging unit 152. At this time, the heat transfer part can transfer heat from the second heat exchange part 152 to the second heat exchange part 152. In particular, the heat transfer part may be in the form of a heat transfer gel, a liquid, a tape, or the like.

The heat exchanging unit 150 may include a Peltier device unit 153 installed between the first heat exchanging unit 151 and the second heat exchanging unit 152. At this time, the Peltier element part 153 generates heat in a portion contacting the first heat exchanging part 151 and can be cooled in a part contacting the second heat exchanging part 152. Therefore, the Peltier element part 153 can be formed to have a temperature higher than the temperature of the part where the Peltier element part 153 makes contact with the first heat exchanging part 151 and the second heat exchanging part 152.

The sensor unit 160 may be installed in the body 110 to measure the temperature inside the body 110. The power supply unit 170 may be electrically connected to at least one of the projector P, the cleaning unit 140, the heat exchanging unit 150, the sensor unit 160, and the like. At this time, the power source unit 170 may be connected to an external power source to supply power to each component, and in another embodiment, the power source unit 170 may be chargeable such as a secondary battery.

The controller 180 is electrically connected to the cleaning unit 140, the heat exchanging unit 150 and the sensor unit 160 to control at least one of the cleaning unit 140, the heat exchanging unit 150, and the sensor unit 160 .

The projector case 100 may include an input unit 191 for receiving an input signal from a user. At this time, the input unit 191 may have various forms such as a display panel including a touch panel, a button-shaped input button, and a communication module for receiving a signal from an external terminal. Hereinafter, the input unit 191 will be described in detail with reference to the case of a display panel including a touch panel for convenience of explanation.

Meanwhile, the operation of the projector case 100 will be described. The projector P can be installed inside the case 100. At this time, the case 100 may be provided with a separate cover 111 or the like to selectively close the internal space. In addition, the case 100 may be connected to the projector P by providing various cables or the like, so that the driving of the projector P can be externally adjusted.

After the projector P is installed as described above, the projector P can be driven and used. At this time, the projector P can control the projector P through the cable connected to the projector P by the control unit 180 when the operation signal is inputted through the input unit 191 as described above.

The projector case 100 as described above may be movable. At this time, foreign substances such as dust and the like on the outside can be adsorbed to the transmission portion 130 while the projector case 100 is moved and used. In this case, since the light emitted from the projector P does not pass through the transmission portion 130 properly, the image implemented in the projector P may be distorted or unclear.

In such a case, the user can operate the driving unit 143 through the input unit 191. [ That is, when the input signal is inputted, the control unit 180 can operate the rotation driving unit 143b.

The rotary plate 143a rotates in accordance with the operation of the rotary drive part 143b and the rotary part 141 reciprocates in a certain range in accordance with the rotation of the rotary plate 143a.

In this case, when the rotary part 141 reciprocates within a certain range, the rotary shaft 143c can move inside the first long hole 141a, and the rotary drive gear 193 is rotated by the first long hole 141a together with the rotary shaft 143c. The inside can be exercised.

When the rotary drive gear 193 moves inside the first long hole 141a, the gear of the rotary drive gear 193 and the gear 141b of the first long hole 141a are engaged with each other, 3 in the clockwise or counterclockwise direction.

When the rotation driving gear 193 rotates, the first magnetizing unit 144a can be rotated together with the rotation driving gear 193. In this case, the first magnet unit 144a connected to the rotation plate 143a can rotate. The power transmission belt portion 144b also rotates in accordance with the rotation of the first magnet member 144a and the power transmission belt portion 144b can rotate the second magnet member 144c. At this time, the length of the power transmission belt part 144b can be kept constant by moving the second magnet part 144c linearly along the second long hole 141c by being connected to the support part 144d.

The first gear 192a may be rotated together with the second magnet 144c when the second magnet 144c is rotated and the first gear 192a may rotate the second gear 192b have.

When the second gear 192b rotates as described above, the foreign material removing unit 142 can rotate at the end of the rotation unit 141. [ At this time, the foreign material removing unit 142 can reciprocate within a certain range according to the motion of the rotation unit 141. [ Particularly, the foreign substance removing unit 142 can reciprocate from one end to the other end of the transmitting unit 130 repeatedly.

As described above, the foreign material removing unit 142 can remove the foreign substances adsorbed to the transmitting unit 130 while reciprocating within a predetermined range while rotating in one direction or another direction. For example, the foreign substance removing unit 142 can remove foreign substances adsorbed to the transmitting unit 130 while rotating alternately in the clockwise direction and the counterclockwise direction.

The above operation can be performed according to the number of times set by the user, the time, etc., and can be performed until the user inputs the stop signal.

On the other hand, during the operation of the projector P, the temperature of the inside of the case 100 may rise due to the heat generated by the projector P. At this time, the controller 180 may operate the Peltier element part 153 according to the input signal of the user. The control unit 180 may operate the peltier element unit 153 when a predetermined time has elapsed after the start signal of the projector P is inputted without the input signal of the user. In another embodiment, the control unit 180 may operate the Peltier element unit 153 when the temperature inside the body 110 measured by the sensor unit 160 reaches a predetermined temperature or more. Hereinafter, for the sake of convenience, the control unit 180 operates the peltier element unit 153 based on the result of the measurement by the sensor unit 160, which will be described in detail.

Specifically, when the projector P operates, the sensor unit 160 may continuously measure the temperature inside the body 110 and transmit the measured temperature to the controller 180. At this time, the controller 180 can determine whether the temperature inside the body 110 is higher than a preset temperature. The control unit 180 can maintain the current state when the temperature inside the body 110 is less than a predetermined temperature. The controller 180 may operate the Peltier element part 153 when the temperature inside the body part 110 is equal to or higher than a predetermined temperature.

When the Peltier element part 153 operates, the temperature of the part contacting with the second heat exchanging part 152 may be lower than the initial temperature. At this time, the second heat exchanging part 152 can exchange heat with the gas inside the body part 110, and the temperature inside the body part 110 can be lowered. Particularly, the temperature of the gas inside the body 110 adjacent to the second heat exchanger 152 is lowered, so that convection can be formed inside the body 110.

During the above-described operation, the first heat exchanging unit 151 can exchange heat between the outside air and the Peltier element unit 153. Particularly, the first heat exchanging part 151 can prevent the Peltier element part 153 from failing or the body part 110 from being damaged by heat due to the temperature of the Peltier element part 153 rising excessively.

Accordingly, the projector case 100 can be manufactured in a movable form, thereby enhancing user convenience. In addition, the projector case 100 can easily remove foreign matters from the transmission portion 130, and is easy to manage. The projector case 100 prevents the internal temperature from rising due to the use of the projector P, thereby preventing malfunction of the projector P and increasing the life span thereof.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications and variations without departing from the spirit and scope of the invention. Accordingly, it is intended that the appended claims cover all such modifications and variations as fall within the true spirit of the invention.

100: Case
110:
120:
130:
140: Cleaning section
150: heat exchanger
160:
170:
180:
191:
192: gear unit

Claims (12)

A body portion in which a projector is disposed;
A transmission unit installed in the body and transmitting light emitted from the projector to the outside;
And a cleaning unit installed on the body to remove foreign matter from the transmitting unit,
The cleaning unit may include: a rotating unit having one end rotatably fixed to the body; A foreign matter removing unit rotatably installed on the rotating unit; A driving unit connected to the rotating unit to rotate the rotating unit, the driving unit including a rotating plate connected to the rotating unit, and a rotation driving unit connected to the rotating plate to rotate the rotating plate; And a connector part connected to the driving part and the foreign matter removing part to move the foreign matter removing part when the driving part operates,
The connector unit,
A first charger connected to the driving unit and rotated when the driving unit operates;
A power transmission belt unit connected to the first magnet unit; And
And a second charger unit disposed to be spaced apart from the first charger unit and connected to the power transmission belt unit and connected to the foreign matter removing unit,
The rotation part is connected to the rotation plate so as to be eccentric from the rotation center of the rotation plate, and a rotation shaft installed in the other of the rotation part and the rotation plate is inserted and moved in a first slot provided in any one of the rotation part and the rotation plate, Is reciprocated in a predetermined path. delete The method according to claim 1,
Wherein the foreign substance removing portion includes a brush. delete delete delete delete The method according to claim 1,
And a lens portion disposed between the transmissive portion and the projector. The method according to claim 1,
And a heat exchanger installed in the body to exchange heat between the inside and outside of the body. 10. The method of claim 9,
The heat-
A first heat exchanger exposed to the outside of the body part; And
And a second heat exchanger connected to the first heat exchanger and disposed in the body. 11. The method of claim 10,
The heat-
And a Peltier element part disposed between the first heat exchanging part and the second heat exchanging part. 12. The method of claim 11,
And the Peltier element part has a temperature at the side of the second heat exchange part being lower than a temperature at the side of the first heat exchange part.

Images