JP2002158475A - Hermetically sealed enclosure for planar display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hermetically sealed enclosure for planar display device that is made to be inexpensive by housing a commercially available ordinary planar display device together with an air conditioner and can be installed to any location. SOLUTION: This hermetically sealed enclosure 20 is divided into an upper housing chamber 20a and a lower housing chamber 20b having a hermetically sealed display window 25 in its front face by a partition wall 21. The enclosure 20 has a display window 1a facing the window 25 in its front face, a plurality of suction openings 1b in the lower parts of its back face, and a plurality of supply openings 1c in the upper part of its back face. In this enclosure 20, the planar display device 10 provided with a plurality of fans 5 correspondingly to the supply openings 1c is housed in the lower housing chamber 20b. In addition, the integrated air conditioner 30 which sucks and cools the air warmed by the display device 10 and discharged into the chamber 20b by means of the fans 5 and circulates the cooled air by blowing the cooled air into the chambers 20b is put in position in the upper housing chamber 20a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealed housing for a flat panel display device which accommodates a flat panel display device such as a PDP and is used on a street or the like, and more particularly to the mounting and heat radiation of the flat panel display device.

[0002]

2. Description of the Related Art As shown in FIG. 3, a flat display device 10 using a plasma display panel has a display window 1a at the front, a plurality of inlets 1b at the lower rear, and a plurality of outlets 1c at the upper rear. The display window 1a in the housing 1
Display Panel (PDP) 2
And a control board 3 for controlling and driving the PDP 2, a power supply board 4 for supplying electric power to the control board 3, and a plurality of blowers 5 arranged corresponding to the outlet 1c. Since the flat display device 10 is designed to be used indoors which are relatively free from the influence of rain and wind and relatively small in dust, the flat display device 10 can be used as it is outdoors, such as on a street, where there is a lot of dust and which is easily affected by wind and rain. I can't do that. Therefore, Japanese Patent Application Laid-Open
As shown in FIG. 5, a refrigerator 6 of a refrigeration cycle is disposed in the housing 1, and a refrigerant pipe 41 is connected to the cooler 6 from a radiator 50 of the refrigeration cycle provided outside. Connected, and circulates a refrigerant through the refrigerant pipe 41 to cool the air in the housing 1 and to apply the cold air to the housing 1
By circulating inside, there is a case in which the casing 1 has a closed structure and can be used outdoors, such as on a street, which is subject to a lot of dust and easily affected by wind and rain. However, in this configuration, the housing 1 must be designed exclusively, so that it is not only expensive, but also requires a dedicated heat radiating device 50 externally, and the installation location of the heat radiating device 50 has been a problem.

[0003]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and is inexpensive by accommodating a cooling device and a commercially available flat display device in the same closed casing. It is an object of the present invention to provide a closed casing for a flat panel display device.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention divides a closed housing into an upper housing chamber and a lower housing chamber having a display window hermetically provided on the front by a partition. In the housing room, a display window facing the display window at the front, a plurality of suction ports at the lower back, and a plurality of blowers corresponding to the blower are provided in a housing provided with a plurality of blowouts at the upper back. While the flat display device provided is accommodated, the upper housing chamber is cooled by sucking air that is heated by the flat display device and discharged into the lower housing room by the blower, and is blown into the lower housing room. It is a sealed housing for a flat panel display in which a circulating cooling device is arranged.

[0005] The cooling device is a hermetically sealed housing for a flat display device, which is an integrated air conditioner.

[0006] On the front surface of the upper storage chamber of the closed casing,
An external suction port communicating with an external air suction port provided in the integrated air conditioner is provided on one side, and discharges warm air which is sucked from the external air suction port through the external suction port and warmed by the heat exchanger for heat radiation. And a closed casing for a flat panel display device provided with an external air outlet communicating with the external air outlet to be used.

[0007] A closed casing for a flat panel display device is provided with a suction grille and a blowout grill, each of which is composed of a plurality of horizontal rails inclined upward and rearward at the external inlet and the external outlet.

The partition has a first ventilation hole corresponding to an air outlet of the flat panel display, and a second air inlet, and the first air hole is provided on a lower surface of the cooling device. An internal suction port for sucking warm air discharged into the lower storage chamber is provided in the second ventilation hole on a lower surface of a cooling device, and cool air sucked from the internal suction port and cooled by the cooling heat exchanger is blown out. It is a sealed casing for a flat panel display device, which communicates with an internal outlet.

[0009] A closed casing for the flat panel display device is provided in which the second ventilation hole is provided with a duct communicating with the vicinity of the suction port of the flat panel display device.

A partition plate for partitioning the lower storage chamber into a suction port side and a blow-out port side of the flat display device is provided in the lower storage chamber, and a through-hole for supporting the duct through the duct is provided in the lower storage chamber. It is a sealed housing for a flat display device provided.

[0011] The lower housing of the closed housing is opened at the front,
A front panel is provided hermetically so as to be openable and closable at the opening, and the display panel is provided with the display window to form a sealed housing for a flat display device.

A sealed housing for a flat panel display device is provided in which a sealing material is attached to a contact surface of the opening with the front panel.

[0013] A locking portion having a locking hole is provided in front of the lower surface of the partition, and a mounting portion having a screw hole is provided in front of both lower sides of the closed casing. A sealed housing for a flat panel display device is provided which is provided with a locking claw corresponding to a stop hole and is fixed to a mounting aid having a mounting hole corresponding to the screw hole at a lower portion.

For the flat display device, the flat display device is mounted so as to be provided with a gap through which cool air flows between a display window of the flat display device and a display window of the closed casing. It has a closed casing.

[0015] The bottom surface of the closed casing is a closed casing for a flat panel display device formed in an arc shape.

[0016] The air conditioner is a closed casing for a flat display device in which the blower volume of the blower of the air conditioner is approximately twice the blower volume of the blower of the flat display device.

[0017]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a closed casing for a flat panel display according to the present invention. FIG. 1 is a sectional side view showing a main part of an embodiment of a closed casing for a flat panel display according to the present invention. FIG. 2 is a perspective view of a main part viewed from above the closed casing for a flat panel display according to the present invention. FIG. 4 is a side sectional view of a main part of the flat display device, and FIG. 4 is a perspective perspective view of the appearance of an integrated air conditioner as an example of a cooling device. In the figure, reference numeral 20 denotes a closed casing, 10 denotes a flat display device, and 30 denotes an integrated air conditioner. As shown in FIG. 3, the housing 1 of the flat display device 10 includes a front panel 11 having a display window 1a on the front,
The front panel 11 is mounted on the front opening, and comprises a rear housing 12 having a plurality of suction ports 1b at a lower rear portion and a plurality of outlets 1c at an upper rear portion. In this case 1,
A plasma display panel (PDP) 2 facing the display window 1a, and a control board 3 for controlling and driving the PDP 2
And a power supply board 4 for supplying electric power to the control board 3 and a plurality of blowers 5 arranged corresponding to the air outlet 1c.

As shown in FIG. 4, the integrated air conditioner 30 has an outside air inlet 30a for sucking outside air on a front surface and an outside air outlet 30b on a side surface. Further, an internal suction port 30 for sucking warm air from the flat display device 10 is provided on one side of the lower surface.
e, an inner outlet 30f is provided on the other side of the lower surface. The air sucked in from the outside air inlet 30a takes away the heat of the heat radiating heat exchanger 30c, and the heated warm air is blown out from the outside air outlet 30b by the outside air blower 30d. The warm air from the flat display device 10 sucked from the internal suction port 30e is deprived of heat by the cooling heat exchanger 30g and cooled, and the cool air is cooled by the inside air blower 3g.
At 0h, air is blown out from the internal air outlet 30f. Although not shown, a compressor for compressing a refrigerant constituting a refrigeration cycle by the heat-dissipating heat exchanger 30c and the cooling heat exchanger 30g, and a throttle mechanism are provided inside.

As shown in FIG. 1 and FIG.
Is separated from the upper storage chamber 20a by the partition 21 and the lower storage chamber 20
b. The flat display device 10 mounted on the mounting aid 40 is disposed in the lower storage chamber 20b, and the integrated air conditioner 30 is disposed in the upper storage chamber 20a. The inlet 1b and the outlet 1 on the rear side of the flat display device 10 in the lower storage chamber 20b.
c, a partition plate 22 having a through hole 22a is provided. Further, the partition 21 has a first ventilation hole 21a and a second ventilation hole 21b with a sealing material 21c made of synthetic rubber or the like attached to the periphery of the upper surface. The first ventilation hole 2
The upper part of 1a is hermetically connected to the internal suction port 30e of the integrated air conditioner 30 by the sealing material 21c, and the lower part faces the outlet 1c of the flat panel display 10. In addition, above the second ventilation hole 21b,
The internal air outlet 30f of the integrated air conditioner 30 is hermetically communicated with the sealing material 21c, and a duct 23 is connected to a lower portion thereof. The duct 23 is supported through a through hole 22a of the partition plate 22. The flat display device 10 extends to the vicinity of the suction port 1b. In this manner, the cool air blown out from the integrated air conditioner 30 is introduced into the suction port 1b of the flat display device 10 below the partition plate 22 through the duct 23, so that the cool air is directly injected into the internal suction device. It is configured to prevent a so-called short circuit returning to the mouth 30e.

The upper housing chamber 20a on the upper side of the closed casing 20 includes a rear plate 20a1 forming a back surface and a side surface, and a front plate 20a forming a top surface and a front surface.
2, the front plate 20a2 is attached to the back plate 20a1 so as to be openable and closable. An external suction port 20a3 corresponding to the external air suction port 30a of the integrated air conditioner 30 is provided on a front surface of the upper storage chamber 20a, and a side surface thereof is connected to the external air outlet 30b by a duct 31. An external outlet 20a4 is provided. The external inlet 20a3 and the external outlet 20a4 each have a suction grill 24a formed of a plurality of horizontal rails inclined upward to the rear.
And a blowout grill 24b are formed to withstand wind and rain.

In order to dispose the integrated air conditioner 30 in the upper accommodating chamber 20a, after opening the front plate 20a2, the internal suction port 30e and the internal outlet 30f of the integrated air conditioner 30 are connected. The partition walls 2 are respectively aligned with the first ventilation holes 21a and the second ventilation holes 21b of the partition walls 21.
Put it on 1 and fix it with bolts. Next, the outside air outlet 30b of the integrated air conditioner 30 and the upper accommodation chamber 2
The outside air outlet 20a4 on the side of Oa is connected by the duct 31. Then, the arrangement of the integrated air conditioner 30 is completed by closing the front plate 20a2.

An opening 20b3 is provided on the front surface of the lower housing chamber 20b below the closed casing 20, and the opening 20b3 is provided.
A front panel 20b1 having a display window 25 fitted with tempered glass is attached to b3 so as to be openable and closable upward by a hinge provided at an upper end thereof, and a lock mechanism for the front panel 20b1 is provided below the opening 20b3. It is locked and managed. Then, the opening 20b3
A sealing material 20c such as a synthetic rubber is attached to a peripheral edge of the front panel and a contact portion of the front panel 20b1 so as to maintain the hermeticity. A locking hole 2 is provided in front of the lower surface of the partition 21.
An engagement portion 26 having a screw hole 27a is provided at a lower portion on both sides of the closed casing 20. On the other hand, the flat display device 10 is
Locking claws 40a to be locked in the locking holes 26a are formed on both upper sides of the mounting assisting tool 40 for mounting inside, and mounting holes 40b corresponding to the screw holes 27a are formed on both lower sides. Is provided.

In order to dispose the flat display device 10 in the lower storage chamber 20b, first, the flat display device 10 is mounted on the mounting aid 40 with bolts (not shown), and then the front panel 20b1 is opened. After that, the locking claw 40a of the mounting aid 40 to which the flat panel display device 10 is mounted is locked in the locking hole 26a of the locking portion 26, and the mounting hole 4a is fixed.
The flat display device 10 is disposed in the lower storage chamber 20b by screwing a screw from the front side 0b to the screw hole 27a. Then, by closing and locking the front panel 20b1, the flat panel display device 10 is sealed in the sealed housing 20. As described above, the front panel 20b1 can be opened and closed, so that the flat display device 10 can be easily installed and maintained. Also,
Locking claw 4 of mounting aid 40 to which flat display device 10 is mounted.
By locking Oa in the locking hole 26a of the locking portion 26, mounting workability can be improved. Also, at this time, a gap is provided between the display window 1a of the flat panel display device 10 and the display window 25 of the front panel 20b1 of the closed casing 20, so that the cool air is flat. The PDP 2 that circulates through the display window 1a of the display device 10 and generates heat facing the display window 1a can be efficiently cooled. Then, the bottom surface 20b2 of the closed casing 20
Are formed in an arc shape so that the cool air blown out from the duct 23 easily flows to the front panel 20b1 side.

The operation of the above configuration will now be described. First, the operation of the integrated air conditioner 30 will be described. Refrigerant such as alternative CFCs which have been compressed by the compressor to have a high temperature and a high pressure are condensed by exchanging heat with the outside air sucked from the outside air suction port 30a in the heat radiating heat exchanger 30c. The condensed refrigerant evaporates in the cooling heat exchanger 30g via the throttle mechanism to become a low-temperature refrigerant, and exchanges heat with the warm air from the flat display device 10 sucked in from the internal suction port 30e to compress the refrigerant. Circulated to On the other hand, the outside air sucked in from the outside air suction port 30a is warmed by the heat radiating heat exchanger 30c to become hot air, and is blown out from the outside air outlet 30b by the outside air blower 30d. The warm air from the flat display device 10 sucked from the internal suction port 30e is cooled by the cooling heat exchanger 30g to become cool air, and is blown out from the internal outlet 30f by the inside air blower 30h. The cool air blown out from the internal outlet 30f is introduced into the lower storage chamber by the duct 23 and blown out to the vicinity of the plurality of inlets 1b of the flat display device 10.

Next, the operation of the flat panel display 10 will be described. Part of the cool air blown out by the duct 23 is introduced into the inside of the housing 1 from the plurality of suction ports 1b.
The cool air introduced into the lower side of the inside of the housing 1 is guided upward while being heated by removing the heat generated from the PDP 2, the control board 3, and the power supply board 4, and from a plurality of blowout ports 1 c by a plurality of blowers 5. It is blown out and circulated to the internal suction port 30e.

Another part of the cool air blown out by the duct 23 is guided to the periphery of the housing 1 and is folded back by the arc-shaped bottom surface of the bottom surface 20b2 of the closed housing 20 to display the flat display. Air is passed through a gap between the display window 1a of the device 10 and the display window 25 of the front panel 20b1 of the closed casing 20, so that the casing 1 heated by the PDP 2 cools from the outside. The air heated by cooling the casing 1 is circulated to the internal suction port 30e. From the experimental results, it can be seen that by setting the flow rate of the cool air blown from the internal outlet 30f of the integrated air conditioner 30 to about twice the flow rate of the air flowing through the flat display device 10, the flat display device 10 can be efficiently manufactured. Can be cooled.

[0027]

As described above, according to the closed casing for a flat panel display according to the present invention, the closed casing is divided into an upper receiving chamber by a partition and a lower receiving chamber having a display window hermetically provided on the front surface. The lower housing chamber is divided into a housing provided with a display window facing the display window on the front, a plurality of inlets on the lower rear, and a plurality of outlets on the upper rear, corresponding to the outlet. A flat display device including a plurality of blowers is provided, and the upper storage chamber is cooled by sucking air that is warmed by the flat display device and discharged into the lower storage chamber by the blower. A flat display device hermetically sealed enclosure with a cooling device that blows and circulates indoors is arranged. 2D display without problems It is possible to provide a 置用 sealed enclosure.

[Brief description of the drawings]

FIG. 1 is a sectional side view showing a main part of an embodiment of a closed casing for a flat panel display device according to the present invention.

FIG. 2 is a perspective view of a main part, viewed from above, showing an embodiment of the closed casing for a flat panel display according to the present invention.

FIG. 3 is a side sectional view showing a main part of a flat display device of a sealed housing for a flat display device according to the present invention.

FIG. 4 is an external perspective perspective view of an integrated air conditioner having a closed casing for a flat panel display according to the present invention.

FIG. 5 is a sectional side view of a main part showing a conventional sealed housing for a flat panel display device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 housing of flat panel display 10 1a display window 1b inlet 1c outlet 2 plasma display panel (PDP) 3 control board 4 power supply board 5 blower 10 flat panel display 11 front panel 12 rear housing 20 closed housing 20a upper housing Room 20a1 Back plate 20a2 Front plate 20a3 External suction port 20a4 External outlet 20b Lower accommodation chamber 20b1 Front panel 20b2 Bottom surface 20b3 Opening 20c Sealing material 21 Partition 21a First ventilation hole 21b Second ventilation hole 21c Sealing plate 22 Partitioning plate 22 Hole 23 Duct 24a Suction grill 24b Blow-off grill 25 Display window 26 Locking portion 26a Locking hole 26a Screw hole 27 Mounting portion 30 Integrated air conditioner 30a External air inlet 30b External air outlet 30c Heat exchanger for heat radiation 30d Blower for external air 30e Internal suction port 30 Internal air outlet 30g cooling heat exchanger 30h inside air blower 31 duct 40 attached aid 40a locking claw 40b mounting hole

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G09F 9/00 350 G09F 9/00 350Z

Claims (13)

[Claims] 1. A closed casing is partitioned by a partition into an upper accommodation room and a lower accommodation room in which a display window is hermetically provided on the front surface, and a display window facing the display window is provided on the lower accommodation room. A flat display device provided with a plurality of blowers corresponding to the air outlets in a housing provided with a plurality of air inlets at a lower rear portion and a plurality of air outlets at an upper rear portion, and the upper housing chamber. A cooling device that sucks and cools air that is heated by the flat display device and discharged into the lower housing chamber by the blower, and that blows and circulates air into the lower housing room. A sealed housing for display devices. 2. The closed casing for a flat display device according to claim 1, wherein said cooling device is an integrated air conditioner. 3. An external suction port communicating with an external air suction port provided in the integrated air conditioner is provided on a front surface of the upper accommodation chamber of the closed casing, and the external air is connected to the outside air suction port on one side through the external suction port. 3. The hermetically sealed enclosure for a flat display device according to claim 2, further comprising an external air outlet communicating with an external air air outlet for discharging the warm air sucked from the air inlet and heated by the heat exchanger for heat radiation. 4. The flat display device according to claim 3, wherein the external suction port and the external air outlet are provided with a suction grille and a blowout grill, each of which includes a plurality of horizontal bars inclined upward and rearward. Closed enclosure. 5. The partition wall is provided with a first ventilation hole corresponding to an air outlet of the flat display device, and a second ventilation hole corresponding to a suction port, wherein the first ventilation hole is provided on a lower surface of the cooling device. An internal suction port for sucking warm air discharged from the outlet into the lower housing chamber is provided in the second ventilation hole on a lower surface of the cooling device, and is cooled by a cooling heat exchanger sucked from the internal suction port. 3. The sealed casing for a flat panel display device according to claim 1, wherein an internal outlet for discharging the cooled air is communicated. 6. The sealed enclosure for a flat display device according to claim 5, wherein a duct communicating with a vicinity of the suction port of the flat display device is provided in the second ventilation hole. 7. A partition for partitioning the lower storage chamber into a suction port side and an air outlet side of the flat display device in the lower storage chamber, and the partition plate penetrates and supports the duct. 7. The sealed housing for a flat panel display device according to claim 6, wherein a hole is provided. 8. A front face of the lower housing of the closed housing is opened, and a front panel is hermetically opened and closed at the opening.
3. The sealed enclosure for a flat panel display device according to claim 1, wherein the display window is provided on the front panel. 9. A sealed housing for a flat panel display device according to claim 8, wherein a sealing material is attached to a contact surface of said opening with said front panel. 10. A locking portion having a locking hole in front of a lower surface of the partition wall, and a mounting portion having a screw hole in front of both lower side surfaces of the closed casing, and the flat display device is mounted on an upper portion. 9. The closed casing for a flat display device according to claim 8, further comprising a locking claw corresponding to the locking hole, and being fixed to a mounting aid having a mounting hole corresponding to the screw hole at a lower portion. . 11. The flat display device is mounted so that a gap through which cool air flows is provided between a display window of the flat display device and a display window of the closed casing. The sealed housing for a flat panel display device according to claim 1 or claim 10, wherein 12. The sealed housing for a flat panel display device according to claim 11, wherein a bottom surface of the sealed housing is formed in an arc shape. 13. The closed casing for a flat display device according to claim 1, wherein the blower volume of the blower of the cooling device is substantially twice the blower volume of the blower of the flat display device.