JPH03293694A - Display device - Google Patents

Abstract

PURPOSE:To achieve heat-exchange between the inside and outside of a box by disposing a heat pipe whose one end extends to the vicinity of a display part in the box and other end projects out of the box via the entire surface, upper and lower parts, of the back of the box, and attaching a cooling fan to the other end of the heat pipe. CONSTITUTION:The heat pipe 8 is attached via the back 4 of the box 1, and its one end extends to the vicinity of the display part 2 in the box 1 and other end projects out of the box 1. A cooling fan 9 is attached to the other up to the outside part of the heat pipe 8. When the display part 2 in the box 1 is heated, the interior temperature of the box 1 rises. However, since the heat pipe 8 whose one end projects to the inside of the box 1 and whose other end projects at the outside of the box 1 is attached, heat is exchanged between the inside and outside of the box 1 by the heating pipe.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a display device having a display section formed by arranging a large number of electron tubes in a matrix.

[Conventional technology]

3 and 4 are diagrams showing a conventional display device disclosed in, for example, Japanese Patent Application Laid-Open No. 59-204084. The display section (2), which is arranged in a matrix, is placed on the front (3).
A desired image is displayed on the display section (2) by selectively operating the electroluminescent tube.

Next, the operation will be explained. The display section (2) usually uses tens of thousands of electric light tubes, and the heat generated there is considerable. Therefore, a fan unit (5) is provided along the back surface (4) of the box (1) of the large display device in order to cool the display section (2). This fan unit (5) usually consists of multiple fans (6) arranged horizontally in parallel.
The outside air is taken in through the outside air inlet (7) provided on the back (4) of the large display unit (1), and the display unit (
2) Cool.

[Problem to be solved by the invention]

Since the conventional display device is configured as described above, it requires a large number of cooling fans, and also has the problem that it cannot be dust-proof or rain-proof because it sucks in outside air.

This invention was made to solve the above-mentioned problems, and aims to provide a display device that can eliminate the need for a cooling fan and is also dust- and rain-proof.

[Means for resolving issues]

The display device according to the present invention has a heat i< At the same time, a cooling fin is attached to a portion of the heat pipe that protrudes to the outside of the box on the other side.

[For production]

In the display device according to the present invention, the inside of the box is cooled by the heat pipe, thereby cooling the display section.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 1st
In Fig. 2, (8) is the back part (4) of the box (1).
The heat pipe is attached through the heat pipe, and the - side extends to the vicinity of the display section (2) inside the box (1), and the other side protrudes to the outside of the box (1).

(9) is a cooling fin attached to the other side of the heat pipe (8).

Note that the other configurations are the same as those of the prior art, so explanations will be omitted.

Next, the operation will be explained. When the display part (2) inside the box (1) generates heat, the temperature of the F part of the box (1) increases. A heat pipe (8) with one side protruding inside the box (1) and the other side protruding outside the box (1) is installed, so the heat pipe connects the inside of the box (1) and the box. (1
) is exchanged with the outside.

〔Effect of the invention〕

As described above, according to the present invention, a heat pipe is provided which extends through at least one of the rear side surface, top surface, and bottom surface of the box body to the vicinity of the display section inside the box body, and whose other side protrudes to the outside of the box body. At the same time, since the cooling fin 7 is attached to the other side of the heat pipe, it is possible to exchange heat between the inside and outside of the box even if the box is sealed.

[Brief explanation of drawings]

1 and 2 are views showing a display device according to an embodiment of the present invention, in which FIG. 1 is a plan view, FIG. 2 is a perspective view seen from the rear of FIG. 1, and FIGS. 4 is a diagram showing a conventional display device, FIG. 3 is a plan view, and FIG. 4 is a perspective view of FIG. 3 seen from the rear. In the figure, (1) is a box of the display device, (2) is a display section, (3) is a front surface, (4) is a back surface, (8) is a beat pipe, and (9) is a cooling fin. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] A display section, which is housed in a box and is made up of a large number of electron tubes arranged in a matrix, is provided on the front surface of the above-mentioned body, and one side is provided through at least one of the back, side, top, and bottom surfaces of the box. In a display device including a heat pipe that extends to the vicinity of the display inside the box and has the other side protruding to the outside of the box, cooling fins are provided on the other side of the heat pipe that protrudes to the outside of the box. A display device characterized by being attached.