JP3846731B2 - Video display device - Google Patents

Description

The present invention relates to a video display device.

  In a video display device in which an optical element including a light source and a projection lens is housed inside a housing, for example, a projector, the internal temperature of the housing rises due to heat generated by a lamp as a light source and is housed inside the housing. It is necessary to take measures to prevent adverse effects on the optical system components and electrical / electronic components. As a countermeasure for this, forcibly exhausting the air inside the housing to the outside by an exhaust fan (see Patent Document 1 and Patent Document 2). And in patent document 1, when high temperature hot air is exhausted toward the side part of a projector, the direction of exhaust can be changed to an exhaust port for the purpose of preventing that hot air hitting a listener directly. A technique for attaching and detaching the exhaust guide is disclosed. On the other hand, Patent Document 2 discloses a technique in which exhaust guides are provided at a plurality of locations on the bottom of the housing, and the exhaust direction is changed by selectively using the exhaust guides.

  On the other hand, it has hitherto been known to keep cold or warm a beverage in a container by directly applying cold / warm air for cooling and heating the interior of a car to a container for beverage (for example, see Patent Document 3).

  By the way, in a video display device that exhausts high-temperature hot air, such as a projector, when the exhaust is discharged toward the front of the housing, the optical system elements and electrical / electronic components housed in the housing are exhausted by the exhaust. Since there is no possibility of being heated from the outside, those elements and parts have the advantage of being less susceptible to the effects of heating by the exhaust, and the side and rear listeners of the device do not get hot air On the other hand, there is an advantage that the listener does not feel uncomfortable. On the other hand, the so-called heat wave may occur due to the exhaust discharged to the front of the housing. It has been found that the quality of the image displayed on the screen in front of the image display device is degraded by the rising air current generated in the light passing region.

JP 2000-137291 A JP 2003-202631 A Japanese Patent Laid-Open No. 9-123821

  The present invention has been made under the above circumstances, and not only is there a possibility that the above-described heat wave is generated even when high-temperature hot air is exhausted in any direction around the casing, It is an object of the present invention to provide an image display device that can effectively use exhaust gas for heat insulation and heating of beverages.

  An image display apparatus according to the present invention includes an image display apparatus main body provided with an exhaust port at a location facing the exhaust fan of a housing that accommodates an optical system element including a light source and a projection lens and an exhaust fan inside. Exhaust air that has an exhaust intake opening that opens at the beginning of the air passage and is opposed to the exhaust opening, and an exhaust discharge opening that discharges exhaust to a location where heat waves are not generated at the end of the air passage In addition to a guide, a container housing space in which a drinking container can be taken in and out is provided in the middle of the air passage of the exhaust guide.

  According to the present invention, hot hot air exhausted from the exhaust port of the video display device main body is blown into the exhaust intake port of the exhaust guide and then discharged from the exhaust discharge port through the air passage. And since the place where hot air is discharged from the exhaust outlet is a place where no heat wave is generated, there is no possibility that the quality of the image displayed on the screen by the heat wave will deteriorate. Also, if you put a drinking container in the container housing space provided in the middle of the air passage of the exhaust guide, the heat of hot air that passes through the air passage is not only effectively used for heat insulation and heating of the beverage, Since the temperature of the hot air discharged from the exhaust outlet is lowered by that amount, an effect of suppressing the surrounding temperature rise is exhibited.

  In the video display device according to the present invention, the video display device main body is provided with the exhaust fan at an inner front portion of the housing, and a projection port facing the projection lens on the front surface of the housing, and the exhaust port. In contrast, the exhaust guide is configured such that when the exhaust intake port is disposed opposite to the exhaust port, the air path extends toward the outside of the video display device main body, and the exhaust discharge port It is possible to adopt a configuration in which is directed to the side of the video display device main body. With this configuration, the exhausted high-temperature hot air is guided to the outside of the video display device main body by the exhaust guide even though the video display device main body is exhausted toward the front of the housing. Since it is discharged to the side, there is no fear that the quality of the image projected on the screen due to heat waves will be reduced.

  In the video display device according to the present invention, the air passage opens toward the rear of the video display device main body at a location where the container housing space is formed, and the drinking container is placed in the container housing space through the opening. It is also possible to adopt a configuration in which it is configured to be able to enter and exit. According to this, the high-temperature hot air exhausted from the exhaust port of the video display device body and blown into the air passage of the exhaust guide is both at the exhaust outlet at the end of the air passage and the opening at the location where the container housing space is formed. Therefore, the hot air discharged from the exhaust guide is dispersed toward the side and rear of the image display device main body.

  An image display apparatus according to the present invention has an exhaust port at a location facing the exhaust fan of a housing that houses an optical system element including a light source and a projection lens and an exhaust fan, and faces the projection lens. The main body of the image display device provided with a projection opening at the location, and an exhaust intake opening disposed opposite to the exhaust port at the beginning of the air passage opens, and exhausts to a location where heat waves are not generated at the end of the air passage. A combination of an exhaust guide and an exhaust guide that is open, and the exhaust fan and the projection lens are arranged in front of the casing so as to face the exhaust port and the projection lens. And the exhaust guide is installed on the front side of the main body of the video display device, and the air passage is positioned on the video display device when the exhaust intake is disposed opposite to the exhaust port. Outside the display unit And the exhaust outlet is directed to the side of the video display device main body, and a container housing space is provided in the middle of the air passage to allow a drinking container to be taken in and out. It is said that the air passage opens rearward at the side of the video display device main body at the location where the accommodation space is formed, and the drinking container can be put into and out of the container accommodation space through the opening. It is made more concrete by adopting the configuration. The effect | action of this invention is demonstrated in detail with reference to embodiment mentioned later.

As described above, according to the video display device of the present invention, even when high-temperature hot air is exhausted in any direction around the casing, the hot hot air is exhausted particularly toward the front of the casing. Even if it is performed, since the hot air is discharged to a place where no heat wave is generated, a situation in which the image quality deteriorates due to the heat wave does not occur. In addition, since the hot air exhausted from the housing can be effectively used for the insulation and heating of the beverage, it is convenient for the operator and the listener to drink the heated and heated beverage on the spot. In addition, there is also an advantage that the temperature of hot air discharged from the exhaust guide is lowered by being used for keeping or heating the beverage, and an increase in ambient temperature is suppressed .

  FIG. 1 is an explanatory diagram of a use state of a video display device A which is an embodiment of the invention according to claims 1 to 4, FIG. 2 is an external view of the video display device body 1, and FIG. 3 is an external view of an exhaust guide 5. FIG. 4 is an external view of the exhaust guide 5 according to a modification.

  As shown in FIG. 2, the video display device body 1 is a projector, and has a projection port 3 and an exhaust port 4 on the front surface of a flat box-shaped housing 2. Although not shown, the housing 2 accommodates necessary optical system elements such as a lamp house as a light source, a projection lens 31 (see FIG. 1), a reflection mirror, and the like. An exhaust fan 41 (see FIG. 1) for forcibly blowing out the hot air inside the housing 2 generated by being heated by the heat generated in FIG. 1 from the exhaust port 4 to the front of the housing 2 is accommodated. In addition, a component unit on which necessary electrical and electronic components are mounted is accommodated. As shown in FIG. 2, the projection port 3 faces the projection lens 31 provided at the inner front portion of the housing 2, and the exhaust port 4 faces the exhaust fan 41 provided at the inner front portion. As shown in FIG. 1, the image display device main body 1 is used to project an image light beam L from a projection port 3 onto a front screen S and project an image on the screen S.

  On the other hand, as shown in FIG. 3, the exhaust guide 5 is formed by a hollow duct, the exhaust inlet 52 opens at the beginning of the horizontally long air passage 51, and the exhaust discharge outlet at the end of the air passage 51. 53 is open, and the exhaust inlet 52 and the exhaust outlet 53 are oriented in the horizontal direction perpendicular to each other. More specifically, the exhaust intake port 52 faces the width direction of the exhaust guide 5, and the exhaust discharge port 53 faces the longitudinal direction of the exhaust guide 5. In addition, container storage spaces 51a and 51a in which drinking containers V can be taken in and out are provided at two locations in the middle of the air passage 51, and the air passage 51 is connected to the exhaust intake at the locations where the container storage spaces 51a and 51a are formed. An opening is made in the same direction as the inlet 52, and the drinking container V can be taken in and out of the container housing spaces 51a and 51a through the openings 51b and 51b.

  The video display device of this embodiment is a combination of the video display device main body 1 and the exhaust guide 5 described above. In use, as shown in FIG. 1, the exhaust guide 5 installed by being placed on the front side of the video display device main body 1 with respect to the exhaust port 4 on the front surface of the housing 2 of the video display device main body 1. The exhaust intake 52 is arranged oppositely. In this way, the air passage 51 of the exhaust guide 5 extends toward the outside of the video display device main body 1 and the exhaust discharge port 53 faces the side of the video display device main body 1. The openings 51b and 51b face rearward at the side of the video display device main body 1 at the locations where the container housing spaces 51a and 51a are formed. Therefore, when an image is projected on the screen S as shown in FIG. 1, high-temperature hot air forcedly exhausted from the exhaust port 4 on the front surface of the casing 2 of the video display device main body 1 by the exhaust fan 41 is exhausted from the exhaust fan 41. After being blown into the exhaust intake 52 of the exhaust guide 5 by the air blowing action, it is discharged from the exhaust outlet 53 and the openings 51b and 51b through the air passage 51. In this case, the place where the hot air is discharged from the exhaust outlet 53 and the openings 51b, 51b is a place away from the projection light beam L. Therefore, the heat wave occurs due to the discharged hot air and the image quality on the screen S is increased. It is impossible for the situation to decrease. In addition, since hot hot air forcedly exhausted from the exhaust port 4 is dispersed and discharged from the exhaust discharge port 53 and the openings 51b and 51b, it is possible to prevent an extreme temperature rise locally in the room. .

  Moreover, if the drinking container V is put in the container accommodation space 51a, 51a provided in the middle of the air passage of the exhaust guide 5, the heat of the hot air passing through the air passage 51 is effectively used for keeping the beverage warm. In addition, when the hot air is effectively used for heat insulation and heating of the beverage in this manner, the temperature of the hot air discharged from the exhaust outlet 53 and the openings 51b and 51b is lowered accordingly and the ambient temperature. There is an advantage that the rise is also suppressed. In addition, taking in / out of the drinking container V with respect to the container accommodating spaces 51a and 51a can be performed from the upper side of the container accommodating spaces 51a and 51a or from the openings 51b and 51b.

  In this embodiment, the container housing spaces 51 a and 51 a are formed at two locations along the air passage 51 of the exhaust guide 5. However, this point is that a container housing space is provided only at one location along the air passage 51. Or you may provide a container accommodation space in more than two places. Further, as in the modification shown in FIG. 4, an elongated container housing space 51a may be formed, and further, by opening the container housing space 51a only upward as shown in FIG. The opening 51b shown in FIG. 3 may be eliminated.

In this embodiment, exhaust guide 5, so need only be installed by placing the front side of the image display apparatus body, troublesome occurs such must detachable the exhaust guide 5 to the image display device main body 1 There is also an advantage of not.

It is a use condition explanatory drawing of the video display apparatus which is embodiment of the invention which concerns on Claims 1-4. It is an external view of a video display device body. It is an external view of an exhaust guide. It is an external view of the exhaust guide by a modification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Image display apparatus main body 2 Housing | casing 3 Projection port 4 Exhaust port 5 Exhaust guide 31 Projection lens 41 Exhaust fan 51 Air path 51a Container accommodation space 51b Opening 52 Exhaust inlet 53 Exhaust outlet

Claims (4)

An image having an exhaust port at the location facing the exhaust fan and a projection port at the location facing the projection lens of the housing containing the optical system element including the light source and the projection lens and the exhaust fan inside The display device main body and an exhaust intake opening disposed opposite to the exhaust opening at the beginning of the air passage are opened, and an exhaust discharge opening for discharging exhaust to a place where heat waves are not generated is opened at the end of the air passage. In combination with the exhaust guide
The exhaust fan and the projection lens are arranged on the inner front part of the casing, and the exhaust port and a projection port facing the projection lens are provided on the front surface of the casing.
The exhaust guide is installed on the front side of the video display device main body, and the air passage extends toward the outside of the video display device main body when the exhaust intake port is disposed opposite to the exhaust port. The exhaust discharge port is directed to the side of the video display device main body, and a container storage space in which a drinking container can be taken in and out is provided in the middle of the air passage, and the container storage space is formed The video display is characterized in that the air passage opens rearward at the side of the video display device main body, and the drinking container can be put into and out of the container housing space through the opening. apparatus. An image display device main body having an exhaust port at a position facing the exhaust fan of a housing that houses an optical system element including a light source and a projection lens and an exhaust fan, and the exhaust port at the beginning of an air passage And an exhaust guide having an exhaust outlet opening for discharging exhaust to a place where heat waves are not generated at the end of the air passage. A video display device, characterized in that a container housing space in which a drinking container can be taken in and out is provided at a location along the air passage of the exhaust guide. The video display device main body is provided with the exhaust fan on the inner front part of the housing and has a projection port facing the projection lens and the exhaust port on the front surface of the housing. When the exhaust intake port is disposed opposite to the exhaust port, the guide extends toward the outside of the video display device main body, and the exhaust discharge port extends to the side of the video display device main body. The video display device according to claim 2, wherein the video display device is adapted to the above. The air passage is configured to open toward the rear of the video display device main body at a location where the container housing space is formed, and the drinking container can be inserted into and removed from the container housing space through the opening. Item 4. The video display device according to Item 3.

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