JPH10172445A - Plasma display panel heat radiation structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a PDP(plasma display panel) heat radiation structure in which heat generated from the PDP is effectively radiated to reduce temperature rise of the PDP. SOLUTION: A heat radiation plate 2 comprising an aluminum plate or the like is fixed to a roughly entire surface of a backside of a PDP(plasma display panel) 1 by binding agent or the like. A number of heat radiation fins 2a also comprising an aluminum plate or the like are planted to the surface of the heat radiation plate 2. An arrangement direction of the heat radiation fins 2a is set in a vertical direction in a PDP 1 operating condition, so flow of temperature-increased air is accelerated. At an upper end part the heat radiation fin 2a, a beam 3 comprising an aluminum plate or the like is stretched. Both ends of the beam 3 are bent to form a roughly U-shaped cross sectional surface, so strength of the PDP 1 of a large picture surface is reinforced, and that it is usable as a base for installing a circuit board, etc., for driving the PDP 1. Air is supplied by natural air cooling or forced air cooling between the head radiation fins 2a in the heat radiation plate 2, thereby heat generated from the PDP 1 is radiated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat radiating structure of a PDP (Plasma Display Panel) for displaying television images and the like, which effectively radiates heat from a PDP having a large screen.

[0002]

2. Description of the Related Art Recently, PDPs have been used as display devices for displaying television images and the like. PD
Although P is thin and capable of large-screen display, the heat-generating portion is concentrated on the display surface and the temperature of the PDP tends to rise particularly in a large-screen PDP because of its thinness. Therefore, there is a problem that a use environment of the PDP is restricted.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a heat dissipation structure for a PDP which effectively radiates heat generated from the PDP and reduces a temperature rise of the PDP. With the goal.

[0004]

Means for Solving the Problems A heat dissipating plate having a heat dissipating fin formed of a thin plate of a high thermal conductor such as an aluminum plate fixed to substantially the entire back surface of a display surface of a PDP for displaying television images and the like has a cross section. A beam is provided at the upper end of the radiating fin made of a thin plate of a high thermal conductor such as an aluminum plate whose both ends are bent so as to have a substantially U-shape, and natural air cooling from the radiating plate or a cooling fan provided separately By forced air cooling in combination with the above, the heat generated from the PDP is effectively radiated.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION A heat radiating plate having a heat radiating fin made of a thin plate of a high thermal conductor such as an aluminum plate fixed to substantially the entire back surface of a display surface of a PDP for displaying television images and the like, A beam is provided at the upper end of the radiating fin made of a thin plate of a high thermal conductor such as an aluminum plate having both ends bent so as to form a letter shape, and is generated from the PDP by natural air cooling or forced air cooling using the heat radiating plate. Dissipate heat.

The radiating fins are planted so as to be arranged in a vertical direction.

The radiation fins to which the beams are attached are wide fins.

The beam is attached by inserting a protruding piece provided at the tip of the wide fin into a hole opened at an end of the beam,
The head of the protruding piece is swaged and locked.

The radiation fin to which the beam is attached is a fin having a substantially U-shaped cross section formed by connecting the upper parts of two fins.

The heat radiating plate is made of P by using a double-sided adhesive tape.
It is fixed to the back of the DP.

The heat dissipation plate is fixed by the double-sided adhesive tape only on a part of the back surface of the heat dissipation plate, and a heat conductive sheet is attached to the rest.

The heat conductive sheet is a silicon resin sheet.

[0013]

FIG. 1 shows a heat radiation structure of a PDP according to the present invention.
It is the (A) rear view, (B) bottom view, and (C) side view which show an Example. FIG. 2 is a partially enlarged view of (A) a rear view, (B) a bottom view, and (C) a side view. For example, a heat radiating plate 2 made of an aluminum plate or the like is fixed to almost the entire back surface of the PDP 1 made of two glass plates having a diagonal of about 1 m with an adhesive or the like. On the surface of the heat radiating plate 2, a large number of heat radiating fins 2a, also made of an aluminum plate or the like, are implanted. The arrangement direction of the heat radiation fins 2a is set to be the vertical direction in the operation state of the PDP to promote the flow of the air whose temperature has increased. At the upper end of the radiation fin 2a, a beam 3 made of an aluminum plate or the like is provided. Both ends of the beam 3 are bent to have a substantially U-shaped cross section to reinforce the strength of a large-screen PDP, and to make it easy to use as a base for mounting a circuit board or the like for driving the PDP. Air is circulated between the radiating fins 2a of the radiating plate 2 by natural air cooling or forced air cooling to radiate heat generated from the PDP.

The radiating fin 2b for attaching the beam 3 to be mounted on the upper end of the radiating fin 2a is a fin wider than the other radiating fins 2a. A protruding piece 2c is provided at the tip of the wide radiating fin 2b. The protruding piece 2c is inserted into the hole 3a opened at the end of the beam 3, and the head of the protruding piece 2c is caulked to lock the beam 3 to the radiation fin. Alternatively, the radiation fin 2b to which the beam 3 is attached may be a fin having a substantially U-shaped cross section in which the upper portions of the two fins are connected.

The heat radiating plate 2 can be fixed to the rear surface of the PDP with an adhesive. However, if the heat radiating plate 2 is fixed to the rear surface of the PDP by using a double-sided adhesive tape 4, workability is improved. Further, since the adhesive or the like generally has a low thermal conductivity, the double-sided adhesive tape 4 is only a part of the back surface of the heat radiating plate 2 and the remaining portion is attached with a heat conductive sheet 5 made of a silicon resin sheet or the like, and the PDP is
The heat transfer coefficient from the heat sink to the heat sink 2 is increased.

[0016]

According to the present invention, a heat radiating plate having a heat radiating fin made of a thin plate of a high thermal conductor such as an aluminum plate fixed to substantially the entire back surface of the display surface of a PDP for displaying television images and the like, and a substantially U-shaped cross section A beam is provided on the upper end of the radiating fin made of a thin plate of a high thermal conductor such as an aluminum plate having both ends bent so that the air cooling from the radiating plate or a combination with a cooling fan provided separately is provided. By performing forced air cooling, heat generated from the PDP can be effectively radiated, so that the PDP can be used even in an operating environment at a relatively high temperature. Further, the temperature rise of the PDP is suppressed, and the life of the PDP is extended.

[Brief description of the drawings]

FIG. 1A is a rear view, FIG. 1B is a bottom view, and FIG. 1C is a side view showing one embodiment of a heat dissipation structure of a PDP according to the present invention.

FIGS. 2A and 2B are a partially enlarged view of FIG. 2A, a rear view, a bottom view, and a side view, respectively.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 PDP 2 Heat sink 3 Beam 4 Double-sided adhesive tape 5 Thermal conductive sheet

Claims (8)

[Claims] A radiator plate having a radiator fin formed of a thin plate of a high thermal conductor such as an aluminum plate fixed to substantially the entire back surface of a PDP (plasma display panel) for displaying television images and the like. A beam is provided at the upper end of the radiating fin made of a thin plate of a high thermal conductor such as an aluminum plate having both ends bent so as to form a letter shape, and is generated from the PDP by natural air cooling or forced air cooling using the heat radiating plate. Heat dissipation structure of PDP that dissipates heat. 2. The heat radiating structure for a PDP according to claim 1, wherein the heat radiating fins are implanted so as to be arranged in a vertical direction. 3. The PDP according to claim 1, wherein the radiation fin for attaching the beam is a wide fin.
Heat dissipation structure. 4. The beam is attached by inserting a protruding piece provided at the tip of the wide fin into a hole opened at an end of the beam, and caulking the head of the protruding piece to lock. The heat dissipation structure of a PDP according to claim 3, wherein 5. The heat radiating structure for a PDP according to claim 1, wherein the heat radiating fin for attaching the beam is a fin having a substantially U-shaped cross section in which the upper portions of the two fins are connected. 6. The heat radiating structure for a PDP according to claim 1, wherein the heat radiating plate is fixed to the back surface of the PDP using a double-sided adhesive tape. 7. The PD according to claim 7, wherein the heat radiation plate is fixed by a double-sided adhesive tape only as a part of the back surface of the heat radiation plate, and a heat conductive sheet is stuck on the remaining portion.
Heat dissipation structure of P. 8. The heat dissipation structure for a PDP according to claim 7, wherein said heat conductive sheet is a sheet made of a silicone resin.