JP2004286940A - Dustproof housing heat radiating mechanism of plasma display panel display panel device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently deter the dustproof housing of a plasma display panel (PDP) display device from rising in temperature and to make the device thin. <P>SOLUTION: The dustproof housing heat radiating mechanism of the plasma display panel display device is equipped with a dusproof cover 2 which is fitted to the back of the PDP display device 1 to cover a discharge opening 1b and an air intake 1c provided on the back side of the PDP display device 1, heat radiation fins 3 which are provided to the back side of the dustproof cover 2, an internal fan 6 which sends hot air, discharged from the discharge opening 1b to inside the dustproof cover 2, out to the heat radiation fins 3, and an external fan 7 which cools the heat radiation fins 3; and the hot air generated by the PDP display device 1 are cooled by the heat radiation fins 3 and external fan 7 and then the cooled air which is discharged from in the heat radiation fins 3 to inside the dustproof cover 2 is introduced in the PDP display device 1 from the air intake 1c. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a dust-proof housing heat-dissipating mechanism of a plasma display panel display device that suppresses a rise in temperature caused by heat radiation when the plasma display panel display device has a dust-proof structure.
[0002]
[Prior art]
Conventionally, in a plasma display panel display device 1 having a dustproof structure (hereinafter, referred to as a PDP display device), the PDP display device is configured as shown in FIG. Specifically, the entire PDP display device 1 is covered with a front panel 12 and a housing 13 to form a dustproof structure, and a heat exchanger 14 is provided on the rear surface of the housing 13 (the surface of the housing 13 facing the front panel). Is arranged to release the heat inside the housing 13 to the outside. With the above configuration, dust prevention and heat radiation of the PDP display device 1 have been enabled.
[0003]
[Problems to be solved by the invention]
Incidentally, in a PDP display device having a large screen size and a thin device itself, a local temperature rise is likely to occur. In such a case, in order to entirely cool the inside of the display device using the above-described conventional heat dissipation method, it is necessary to secure a sufficiently large space volume 15 inside the device. In addition, since the efficiency of the heat exchanger 14 also deteriorates, the heat exchanger 14 is required to have a cooling capacity equal to or greater than the calorific value. In consideration of the above points, in the related art, there is a problem that the PDP display device having the dustproof structure cannot efficiently radiate heat, and the display device itself cannot be made thin.
[0004]
Therefore, an object of the present invention is to solve the above-mentioned problems and to efficiently radiate heat even when the PDP display device has a dustproof structure, and to further reduce the thickness of the PDP display device. It is to provide a body heat radiation mechanism.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, a dust radiating housing heat radiating mechanism in a plasma display panel display device of the present invention is provided so as to cover an exhaust port and an intake port provided on a back side of the plasma display panel display device. A dust cover attached to the back of the display device, a radiating fin provided on the back side of the dust cover, an internal fan that sends out hot air discharged from the exhaust port into the dust proof cover to the radiating fin, An external fan for cooling the radiating fins, and a radiating fin introduction port for sending hot air from inside the dustproof cover to the inside of the radiating fins by the internal fan is provided above the dustproof cover, and The air cooled in the radiation fins is blown from the radiation fins into the dust cover under the rear side of the dustproof cover. A radiating fin exhaust port for discharging is provided, and after cooling the hot air generated from the plasma display panel display device by the radiating fin and the external fan, the cooled air discharged from the radiating fin into the dustproof cover. Is introduced into the inside of the plasma display panel display from the air inlet.
[0006]
Further, in the dust-proof housing heat-dissipating mechanism in the plasma display panel display device of the present invention, the dust-proof cover is provided with a partition wall for shutting off the exhaust port and the intake port inside the dust-proof cover. Is achieved.
[0007]
Further, in the dust radiating housing heat radiating mechanism in the plasma display panel display device of the present invention, the above object is achieved by the heat radiating fan being a once-through type fan, and the heat radiating fin is provided with a bag-shaped slit. However, the above object is achieved.
[0008]
Further, in the dustproof housing heat dissipation mechanism in the plasma display panel display device of the present invention, a fan cover is covered by the external fan and a maintenance opening provided on the back surface of the dustproof cover. By removing the cover, the internal fan inside the dustproof cover may be easily exchanged.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a dust radiating housing heat radiation mechanism of a PDP display device according to an embodiment of the present invention will be described in detail with reference to FIGS. FIG. 1 is a sectional view of a main part showing a configuration of a dust radiating housing heat radiating mechanism of a PDP display device according to an embodiment of the present invention, and FIG. 2 is an enlarged view of a main part as viewed from an arrow A in FIG. Note that arrows in FIG. 1 indicate the flow of air inside the apparatus.
[0010]
[Configuration of the dust radiating housing heat radiation mechanism]
As shown in FIG. 1, the dust-proof housing heat-dissipating mechanism of the PDP display device according to the present embodiment has a dust-proof cover 2 attached to the rear surface of the PDP display device 1 via a spacer 9. Has a radiating fin 3 having a plurality of bag-shaped slits as shown in FIG. With the above configuration, the PDP display device 1 is shut off from the outside air, and a dustproof structure of the PDP display device 1 is realized.
[0011]
Further, the internal space of the dust cover 2 existing between the rear cover 1a provided on the back side of the PDP display device 1 and the dust cover 2 is defined by a partition wall 5 provided in a substantially horizontal direction. Is divided into an upper space 2a on the PDP display device exhaust port 1b side provided above and a lower space 2b on the PDP display device intake port 1c provided below the back cover 1a. As a result, the dust-proof housing heat radiating mechanism according to the present embodiment has a configuration in which the exhaust port 1b and the intake port 1c of the PDP display device 1 are shut off.
[0012]
In the upper space 2a, a radiating fin introduction port 10 is provided on the back side, and on the upper surface of the partition wall 5, the hot air discharged from the PDP display device exhaust port 1b is sucked and introduced. A through-flow (cross-flow) internal through-flow fan 6 having a function of sending the heat from the opening 10 to the inside of the radiation fin 3 is mounted.
[0013]
In the lower space 2b, a radiating fin exhaust port 11 is provided on the rear side, and air cooled in the radiating fin 3 passes through the radiating fin exhaust port 11 as described later. 3 is configured to be discharged into the dustproof cover 2.
[0014]
On the upper surface of the radiating fin 3, a cross-flow type external through-flow fan 7 is mounted as a fan for cooling the radiating fin 3. Further, a fan cover 8 is attached to the upper part of the external once-through fan 7.
[0015]
Here, in the present embodiment, a sheet for allowing the hot air sent from the inside of the dustproof cover 2 to flow inside the heat dissipation fin 3 as shown by the broken line arrow in FIG. 4 are attached. Although the sheet 4 is used in the present embodiment, the means for allowing the hot air sent from the inside of the dustproof cover 2 to flow inside the radiation fin slit is not limited to the sheet 4. .
[0016]
In the present embodiment, a maintenance opening (not shown) for performing maintenance / inspection of the inside of the dustproof cover 2 and replacing the internal flow-through fan 6 is provided on the back surface of the dustproof cover 2. The fan cover 8 is provided so as to close the maintenance opening. With the above-described configuration, the maintenance / inspection worker can easily replace the internal flow-through fan 6 inside the dustproof cover 2 by removing the fan cover 8.
[0017]
[Heat radiation process in the dust-proof housing heat radiation mechanism]
Next, a heat dissipation process by the dustproof casing heat dissipation mechanism of the PDP display device having the above configuration will be described below with reference to FIGS.
[0018]
First, the hot air sucked out from the PDP display device exhaust port 1b is discharged from the inside of the dustproof cover 2 to the radiation fin 3 by the internal flow-through fan 6 as shown in FIG. Subsequently, as described above, the hot air guided to the radiation fin inlet 10 flows through the inside of the radiation fin slit by the sheet 4 as shown by the dashed arrow in FIG.
[0019]
Here, when the hot air flows through the inside of the radiating fin slit as described above, the hot air is cooled by heat conduction to the radiating fins 3, and at this time, the external flow-through fan 7 removes the external air lower than the temperature inside the device. By flowing in the direction of the solid arrow in FIG. 2, the radiating fins 3 heated by the above-described heat conduction are also cooled.
[0020]
The air cooled as described above is discharged from the radiation fin exhaust port 11 into the dustproof cover 2. Then, after being discharged into the dustproof cover 2, it is introduced into the PDP display device 1 through the PDP display device intake port 1 c.
[0021]
As described above, the temperature of the air introduced into the PDP display device 1 from the PDP display device intake port 1c by the hot air sucked from the PDP display device exhaust port 1b decreases through the above-described processes. Therefore, as a result, a rise in the temperature inside the PDP display device 1 is efficiently suppressed.
[0022]
【The invention's effect】
As described above, according to the dust-proof housing heat-dissipating mechanism of the present invention, dust can be prevented from the PDP display device, and hot air generated from the exhaust port of the PDP display device enters the PDP display device through the radiation fins. Before the introduction, the temperature can be reduced by the radiation fins and the external flow-through fan, and efficient temperature rise can be suppressed. Further, according to the dust-proof housing heat radiating mechanism of the present invention, it is not necessary to secure a sufficiently large space volume inside the device, so that the overall device can be made thinner.
[0023]
Further, by providing a maintenance opening on the back of the dustproof cover and providing a fan cover covered by the external flow-through fan so as to close the maintenance opening, an operator performing maintenance and inspection can By removing the fan cover, the internal flow-through fan inside the dustproof cover can be easily replaced, and the maintenance and inspection work does not become complicated.
[Brief description of the drawings]
FIG. 1 is a sectional side view of a main part showing a configuration of a dust-proof housing heat radiation mechanism of a PDP display device according to an embodiment of the present invention.
FIG. 2 is an enlarged view of a main part configuration of the PDP display device of FIG.
FIG. 3 is a sectional side view of a main part showing a dust radiating mechanism of a conventional PDP display device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Plasma display panel display device (PDP display device), 1a ... Back cover, 1b ... PDP display device exhaust port, 1c ... PDP display device intake port, 2 ... Dustproof cover, 2a ... Upper space, 2b ... Lower space, Reference numeral 3 denotes a radiation fin, 4 denotes a sheet, 5 denotes a partition wall, 6 denotes an internal flow-through fan, 7 denotes an external flow-through fan, 8 denotes a fan cover, 9 denotes a spacer, 10 denotes a radiation fin introduction port, and 11 denotes a radiation fin exhaust port. ... front panel, 13 ... housing, 14 ... heat exchanger, 15 ... space.

Claims (5)

A dust cover attached to the back of the plasma display panel display so as to cover an exhaust port and an intake port provided on the back of the plasma display panel display; and a radiation fin provided on the back of the dust cover. An internal fan that sends out hot air discharged from the exhaust port into the dustproof cover to the radiation fins, and an external fan that cools the radiation fins,
Above the rear side of the dust-proof cover, there is provided a radiating fin inlet for sending hot air from the inside of the dust-proof cover to the inside of the radiating fin by the internal fan, and below the rear side of the dust-proof cover, A radiating fin exhaust port is provided for discharging air cooled inside from the radiating fin into the dustproof cover,
After the hot air from the plasma display panel display device is cooled by the radiating fins and the external fan, the cooled air discharged from the radiating fins to the dustproof cover is introduced into the plasma display panel display device from the intake port. A dust radiating housing heat radiating mechanism in a plasma display panel display device characterized by being configured as described above. The heat-dissipating mechanism of a plasma display panel display device according to claim 1, wherein the dust-proof cover includes a partition wall that blocks the exhaust port and the intake port inside the dust-proof cover. The heat radiating mechanism for a dustproof housing of a plasma display panel display device according to claim 1, wherein the heat radiating fan is a once-through fan. The dust radiating housing heat radiating mechanism for a plasma display panel display device according to claim 1, wherein the radiating fin comprises a bag-shaped slit. A fan cover is covered by the external fan and a maintenance opening provided on the rear surface of the dustproof cover, and by removing the fan cover, the internal fan in the dustproof cover can be replaced. 5. The heat radiating mechanism for a dustproof housing of a plasma display panel display device according to claim 1, wherein the dustproof housing can be easily implemented.

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