JP3219750B2 - Storage equipment for video equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing for protecting video equipment.

[0002]

2. Description of the Related Art Generally, it is assumed that video equipment such as a projector is used in a stable environment, for example, indoors. That is, the normal operation of the video equipment is guaranteed only within a predetermined temperature range. On the other hand, in recent years, an attempt has been made to increase the effect of producing an event by projecting an image on a wall surface of a building or the like at various events. For example, on a ski slope at a ski resort in winter, an image can be projected by a liquid crystal projector using a wall surface made of snow as a screen.

[0003]

However, in winter or summer, the temperature may be lower or higher than the range in which the normal operation of the video equipment is guaranteed, and malfunction occurs when the video equipment is used outdoors. May cause Further, depending on the weather, the video equipment is exposed to direct sunlight, wind and rain for a long period of time, and there is a danger of causing serious damage to various mounted electronic components. Therefore, there is a problem that it is difficult to use the video equipment outdoors for a long time.

An object of the present invention is to solve the above-mentioned problems, and it is an object of the present invention to provide a housing which enables video equipment to be used outdoors for a long period of time.

[0005]

A video device according to the present invention.
The storage device of the main body is stored so that the video equipment main body can be taken in and out
And a temperature adjustment mechanism for adjusting the temperature around the video device main body inside the housing to a predetermined range, an opening is formed in a side surface of the housing, and the video device main body is It is characterized in that the opening is located on the optical axis of the system, and the video equipment main body is, for example, a projector.

Preferably, the temperature adjustment mechanism is provided inside the housing, and a first temperature sensor for sensing a temperature inside the housing, and a side surface opposite to the side surface on which the opening is formed in the housing. A cooling means provided to inhale outside air into the housing to cool the inside of the housing; and a video device inside the housing.
A heating means provided in the vicinity of the vessel main body , wherein the cooling means and the heating means are controlled based on a result detected by the first temperature sensor.

Preferably, the temperature adjusting mechanism further includes a temperature adjusting means for increasing or decreasing the temperature of the air in the vicinity, and the temperature adjusting means based on the sensing result of the first temperature sensor. And a blower for sending air heated to a temperature different from the inside of the housing.

The temperature adjusting means is, for example, a single member having a Peltier element, and the heat absorption or heat generation on the inner side of the single member housing is controlled based on the result detected by the first temperature sensor.

Preferably, an exhaust port for discharging air inside the housing to the outside is provided on a bottom surface of the housing where the video equipment main body is disposed.

[0010] Preferably, the housing comprises a case in which the video equipment main body is mounted on the bottom surface and an access opening of the video equipment main body is formed on the upper surface, and a lid member detachably attached to the case. .

Preferably, the opening is provided with a transparent plate through which a light flux emitted from the video equipment main body or a light flux incident on the video equipment main body is transmitted. A dew condensation preventing mechanism for preventing dew condensation on the transparent plate is provided.

The dew condensation preventing mechanism is provided, for example, on a surface of the transparent plate on the inner side of the housing, and a second temperature sensor for sensing the temperature of the surface, and on a surface of the transparent plate on the inner side of the housing. A heating member for increasing the temperature of the transparent plate when the detection result of the second temperature sensor is lower than a predetermined range as compared with the detection result of the first temperature sensor.

Preferably, a covering member is provided which covers the entire housing, and the covering member has, for example, a U-shape in cross section and a length of a lower side portion of the side surface of the covering member is equal to that of the side surface of the covering member. The end surface near the opening is inclined at a predetermined angle from the upper side to the lower side so as to be shorter than the length of the upper side.

As described above, according to the present invention, since the video equipment is protected by the housing and the temperature inside the housing is adjusted by the temperature control mechanism, the video equipment can be used outdoors for a long period of time. .

By using a single member having a Peltier element for the temperature control means, heating and cooling are performed more strongly, and it is not necessary to arrange a plurality of members to assist heating and cooling. The space in the housing is used efficiently.

In addition, by providing an outlet in the housing in addition to the temperature adjusting mechanism, the temperature inside the housing can be more efficiently adjusted.

Further, by providing a dew-prevention mechanism on a transparent plate provided in an opening for transmitting a light beam of the video equipment, the quality of the video processed by the video equipment can be improved even when the temperature outside the housing becomes low. Has no effect.

[0018] Further, the housing comprises a case in which the video equipment is mounted on the bottom surface and an access opening for the video equipment is formed on the upper surface, and a lid member detachably attached to the case, so that the video is formed. Installation and removal of equipment become easy.

By covering the casing entirely with the covering member, temperature rise of the casing due to direct sunlight is prevented, and the end face near the opening of the casing is moved from the upper surface of the covering member to the lower surface of the covering member. If it is formed obliquely, the optical axis of the optical system of the video equipment will not be interrupted.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view showing an outdoor housing to which an embodiment according to the present invention is applied.
The outdoor housing 10 includes a case 11 having a case 20 and a lid 30 detachably attached to the case 20, and a hood 40 attached to the case 11. The case 20 has a substantially rectangular parallelepiped shape, and an access port 21 is formed in an upper surface 20U to which the lid 30 is attached. A locking wall 22 having a predetermined height is formed around the entire periphery of the access opening 21. The locking wall 22 is provided such that the length from the peripheral portion of the upper surface 20U of the case 20 to the locking wall 22 substantially matches the thickness of the side surface of the case 20. Therefore, when the lid 30 is attached to the case 20, the lid 30 is prevented from being accidentally moved in the horizontal direction. The attachment and detachment of the video equipment accommodated in the housing 10 described later is performed through the access port 21. In other words, the entrance 21 is large enough to allow the video equipment to enter and exit. In the present embodiment, a liquid crystal projector is provided in the case 20 as a video device.

FIG. 2 is a front view showing the side surface 20F of the case 20 from the inside of the case 20. An opening 20P is formed in the side surface 20F, and as shown in FIG.
Opening 20P on the outer surface of case 20
A window frame 23 is fixed to the periphery of the frame by screws. A transparent glass 24 that allows light emitted from the liquid crystal projector to pass therethrough is fixedly fitted in the window frame 23. On the inner surface of the outdoor housing 10 of the glass 24, a temperature sensor 25 is disposed at a corner on the upper surface 20U side,
Silicone rubber heaters 26 are attached to both end portions with double-sided tape. When it is detected by the temperature sensor 25 that the temperature of the surface of the glass 24 is lower than the internal temperature of the housing 11, the glass 24 is heated by the silicon rubber heater 26, and dew condensation on the surface of the glass 24 occurs. Is prevented. The detection of the internal temperature of the housing 11 will be described later.

Side surface 2 continuous with side surface 20F of case 20
In the vicinity of the upper surface 20U at 0S, the connecting clip 27
Are arranged at predetermined intervals. When the lid 30 is attached to the case 20, a handle 31 with which the coupling clip 27 is engaged is provided on the side surface 30S of the lid 30 which is located substantially on the same plane as the side surface 20S of the case 20. Corresponding is provided. Case 2
0, a side surface 20T parallel to the side surface 20S, and a lid 30.
Also, on a side surface 30T parallel to the side surface 30S, a similar connecting clip (not shown) and a handle (not shown) corresponding to the connecting clip are provided.

The hood 40 is a thin plate-shaped member made of, for example, iron and formed so as to have a substantially U-shaped cross section. The end face 40F of the hood 40 has side faces 40S, 40T.
Is inclined at a predetermined angle from the upper side toward the lower side so that the length of the lower side is shorter than the length of the upper side.

On the upper surface 30U of the lid 30, mounting stays 32 are provided near the corners. Side 30
Taking as an example the mounting stay 32 disposed near the corner defined by the F and the side surface 30T, a fixing portion 32B fixed to the lid 30 and a leg 32L formed integrally with the fixing portion. And an attachment portion 32U integrally formed with the leg portion 32L and to which the upper surface 40U of the hood 40 is attached. At substantially the center of the mounting portion 32U, a hole into which a screw described later is screwed is formed. Since the mounting stays 32 arranged at the other corners have the same configuration, the reference numerals of the respective parts are omitted in FIG. The lengths of the legs 32L of the respective mounting stays 32 are formed to be the same.

A mounting stay 28 similar to the mounting stay 32 is provided on the side surface 20S of the case 20. Side 2
Taking the mounting stay 28 on the 0F side as an example, a fixing portion 28B fixed to the side surface 20S, a leg 28L formed integrally with the fixing portion 28B, and a hood 40 formed integrally with the leg 28L. And a mounting portion 28S to which the side surface 40S is mounted. At the approximate center of the mounting portion 28S,
A hole into which a screw described later is screwed is formed. Since the other mounting stay 28 has the same configuration, FIG.
In the drawings, reference numerals of respective parts are omitted. The legs 28L of the respective mounting stays 28 are formed to have the same length. Similarly, a mounting stay (not shown) is provided on the side surface 20T.

On the side surfaces 40S and 40T of the hood 40,
A hole 41 corresponding to the hole formed in the mounting portion 28S of the mounting stay 28 is formed, and the mounting stay 3 is formed on the upper surface 40U.
A hole 42 corresponding to the hole formed in the second mounting portion 32U is formed. When attaching the hood 40,
The hood 40 is fixed by screwing screws by matching the holes of the mounting portion 28S and the holes 42 and the holes of the mounting portion 32 with each other.

As described above, the mounting stays 28 and 32
Are fixed portions 28B by legs 28L and 32L, respectively.
32B and the mounting portions 28S and 32U are provided at a predetermined distance from each other. Therefore, the outer peripheral surface of the side surface 20S of the case 20 and the side surface 30S of the lid 30 and the inner peripheral surface of the side surface 40S of the hood 40, the side surface 20T of the case 20, and the side surface 30 of the lid 30
T, the inner peripheral surface of the side surface 40T of the hood 40, the lid 30
Of the upper surface 30U of the hood 40 and the inner peripheral surface of the upper surface 40U of the hood 40 are prevented.

FIG. 3 is a perspective view showing the outdoor housing 10 with the hood 40 attached to the housing 11. FIG.
In the figure, the case 20, the lid 30, and the above-described members provided on each of the cases 11 are indicated by broken lines. As shown in FIG. 3, the housing 11 is entirely covered with a hood 40.

FIG. 4 is a plan view showing the case 20 of the housing 11 from the side of the outlet 21. As shown in FIG.
In the case 20, heaters 29 (heating means) are disposed on both sides of the liquid crystal projector 100 mounted on the lower surface 20B. The heater 29 has a configuration in which a silicon rubber heater is disposed between a pair of iron plates in which a plurality of square holes are formed in a lattice shape, and is fixed to the lower surface 20B of the case 20 with screws or the like.

FIG. 5 is a partial sectional view showing the outdoor housing 10 in which the liquid crystal projector is installed, as viewed from the side.
Referring to FIGS. 1 and 5, the upper surface 30 </ b> U of the lid 30 includes:
A cooler / heater 50 (temperature control auxiliary mechanism) is provided. In the cooler / heater 50, a Peltier device (not shown) is provided, and a stirring fan 51 for stirring the air cooled or heated by the heat absorption and heat generation of the Peltier device into the housing 11; A stirring fin 52 is provided to further enhance the efficiency of air temperature control by the heat absorption and heat generation of the Peltier element.

In the cooler / heater 50, by controlling the polarity of an electrode (not shown) connected to the Peltier device, heat absorption and heat generation at both end surfaces of the Peltier device can be switched. That is, when cooling the inside of the housing 11, the outside of the housing 11 generates heat in the cooler / heater 50,
When the temperature on the inner side is increased, the outer side of the housing 11 in the cooler / heater 50 absorbs heat. Therefore, the radiation fan 53 and the radiation fins are arranged so that a change in the temperature of the air due to heat absorption or heat generation on the outer side of the casing 11 in the Peltier element does not affect the change in the temperature of the air on the inner side of the casing 11. 54 are provided.

Side surface 20 parallel to side surface 20F of case 20
B is provided with an outside air suction mechanism 60 (cooling means). The outside air intake mechanism 60 includes an intake port 61 formed on the side surface 20B, an intake fan 62 disposed on the case 20 corresponding to the intake port 61, and an intake port 61 on the outer surface of the housing 11 on the side surface 20B. And a back cover 63 in which a plurality of holes are engraved in a lattice shape, which are fixed by screws so as to cover the cover. According to the rotation of the intake fan 62, outside air is sucked into the housing 11 through the hole of the back cover 63 and the intake port 61.

A thermostat 70 is provided near the intake fan 62 on the inner peripheral surface of the side surface 20 B of the case 20. The switching of the polarity of the electrode connected to the Peltier element in the cooler / warmer 51 and the control of the operation and stop of the intake fan 32 are performed based on the temperature inside the housing 11 detected by the thermostat 70. That is, for example, due to heat generation of the liquid crystal projector 100 itself, or in a situation such as under hot summer sun, the thermostat 7
When the rise of the internal temperature of the housing 11 is sensed by 0, the intake fan 62 is operated, and the polarity of the electrodes is controlled so that a heat absorbing action occurs in the cooler / heater 51 on the inner side of the housing 11. . On the other hand, when the temperature of the outside of the housing 11 becomes low as in winter, the heater 29 is operated, the intake fan 62 is stopped, and the heating / cooling device 51 generates heat on the inner side of the housing 11 so as to generate heat. Is controlled.
The temperature inside the housing 11 is controlled so as to be constantly maintained at a temperature at which a normal operation of the liquid crystal projector 100 is guaranteed, for example, in a range of 5 to 30 degrees Celsius. The thermostat 70 is also used to detect the temperature inside the housing 11 in preventing the occurrence of dew condensation on the surface of the glass 24 described above.

On the lower surface 20B of the case 20,
An exhaust port 80 is formed in the vicinity of a peripheral edge crossing F. The exhaust port 80 extends from the lower surface 20B along a plurality of holes 81 formed in a lattice shape formed on the lower surface 20B and a peripheral portion of the peripheral portion of the lower surface 20B that intersects the side surfaces 20F, 20S, and 20T. And a flat portion 83 integrally formed with the wall portions 82. The outside air drawn into the housing 11 by the intake fan 62 passes through the hole 81, passes through a portion where the wall 82 is not formed, and is discharged to the outside of the housing 11. That is, FIG.
As shown in (2), convection of air indicated by an arrow is generated inside the housing 11, and the temperature inside the housing 11 is maintained in a predetermined range.

The outdoor housing 10 is disposed on a gantry 200 provided at the installation site as shown in FIG. The exhaust port 80 does not contact the gantry 200 and the case 2
The outdoor housing 10 is disposed such that a portion of the lower surface 20 </ b> B where the exhaust port 80 is not formed contacts the installation surface of the gantry 200. Adjustment for projecting an image projected from the liquid crystal projector 100 disposed in the case 20 onto a predetermined projection surface is performed by appropriately adjusting the installation state of the gantry 200.

In the present embodiment, the cooler / heater 50 provided with a Peltier element is used. However, the present invention is not limited to this. For example, a small cooler or heater using a refrigerant commonly used for home use is used. May be used.

In this embodiment, the video equipment provided in the housing 11 is the liquid crystal projector 100. However, the present invention is not limited to this, and the outdoor housing 10 may be used for an imaging equipment such as a camera.

[0038]

As described above, according to the present invention, it is possible to obtain a housing in which the video equipment can be used outdoors for a long time.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an outdoor housing to which an embodiment of the present invention is applied.

FIG. 2 is a front view showing an opening of the case from the inside of the case.

FIG. 3 is a perspective view showing an outdoor housing with a hood attached.

FIG. 4 is a plan view showing the case from the side of an outlet.

FIG. 5 is a partial sectional view showing a housing of the outdoor housing from a side.

[Explanation of symbols]

 Reference Signs List 10 outdoor housing 11 housing 20 case 28 mounting stay 29 heater 30 lid 32 mounting stay 40 hood 50 cooler / heater 80 exhaust port 100 liquid crystal projector 200 mount

Claims (12)

(57) [Claims] An image apparatus main body is housed so that it can be taken in and out.
And a temperature adjustment mechanism for adjusting a temperature around the video device main body inside the housing within a predetermined range, wherein an opening is formed in a side surface of the housing, and the video device main body is provided. <br/> A storage device for a video device main body , wherein the opening is located on the optical axis of the optical system. 2. The temperature control mechanism is provided inside the housing, and detects a first temperature sensor for detecting a temperature inside the housing; and a side surface on which the opening is formed in the housing. A cooling unit provided on an opposite side surface for sucking outside air into the housing to cool the inside of the housing; and a heating unit provided near the video device main body inside the housing, The storage device for a video device main body according to claim 1, wherein the cooling unit and the heating unit are controlled based on a detection result of a first temperature sensor. 3. The temperature control mechanism further includes a temperature control unit that raises or lowers the temperature of the air in the vicinity, and an inside of the housing that is controlled by the temperature control unit based on a detection result of the first temperature sensor. 3. The image forming apparatus according to claim 2, further comprising a temperature control auxiliary mechanism including a blowing unit that sends air heated to a temperature different from the temperature of the housing into the housing. 4.
Storage device for the main body of imaging equipment . 4. The temperature adjusting means is a single member having a Peltier element, and heat absorption or heat generation on the inner side of the casing of the single member is based on a detection result of the first temperature sensor. The storage device for a video device main body according to claim 3, wherein the storage device is controlled . 5. The air conditioner according to claim 1, wherein an exhaust port for discharging air inside the housing to the outside is provided on a bottom surface of the housing where the video device main body is disposed. Storage device for the video equipment body . 6. The case comprises: a case in which the video equipment main body is placed on the bottom surface and an access opening of the video equipment main body is formed on the upper surface; and a lid member detachably attached to the case. Film according to claim 1, wherein
Storage device for the main body of imaging equipment . 7. A transparent plate through which a light beam emitted from the video device main body or a light beam incident on the video device main body is transmitted is provided in the opening. A storage device for a video device main body according to item 1 . The method according to claim 8, wherein the opening, the light beam emitted from the video device body or said being transparent plate disposed to the light flux incident to the video apparatus main body is transmitted, preventing condensation of said transparent plate The storage device for a video apparatus main body according to claim 2, further comprising a dew condensation preventing mechanism for performing the operation. 9. A second temperature sensor disposed on a surface of the transparent plate on the inner side of the housing and sensing a temperature of the surface, wherein the dew condensation preventing mechanism is provided on the inner surface of the housing of the transparent plate. The second temperature sensor is disposed on a side surface, and when the sensing result of the second temperature sensor is lower than a predetermined range as compared with the sensing result of the first temperature sensor, the temperature of the transparent plate is increased. The storage device for a video device main body according to claim 8, further comprising a heating member.
Place . 10. The video equipment main body according to claim 1, further comprising a covering member that entirely covers the housing .
Storage device . 11. The covering member has a U-shaped cross section, and the opening is formed such that the length of the lower side of the side surface of the covering member is shorter than the length of the upper side of the side surface of the covering member. 11. An end face in the vicinity of is inclined at a predetermined angle from the upper side toward the lower side.
A storage device for a video device main body according to item 1 . 12. Osamu video equipment body according to claim 1, wherein the video apparatus body is a projector
Delivery equipment .