JPH0411277A - Picture display device - Google Patents

Abstract

PURPOSE:To close a fresh air inlet so as to prevent the induction of outside air while the operation of a picture display device is stopped and to eliminate the need of the cleaning of a filter even when the operation of the device is restarted by providing a shutter device at the fresh air inlet. CONSTITUTION:The shutter device 9 is disposed at the fresh air inlet 3. In the midst of operation, the outside air is inducted from the inlet 3 by sucking the movable piece 9A of the shutter device 9 with the suction force of the fan 6. When the operation is stopped, the movable piece 9A falls by gravity to close the inlet 3 because the suction force of the fan 6 is lost. Therefore, the outside air is prevented from getting into the device. Thus, even when the operation is restarted, the contamination of the filter 8 is not caused and the cleaning of the filter 8 need not be performed.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an image display device ζ incorporating a cooling device inside.
It is related to

[Conventional technology]

FIG. 4 is a diagram showing a conventional image display device disclosed in, for example, Japanese Utility Model Application No. 60-96689.
1) is the display device main body, (2) is this display device main body (1)
A screen (3) is provided on the front side of the display device main body (υ), and one end of the outside air intake port (5) is connected to the outside air intake port, and the other end is connected to the back side of the screen (2). The intake duct (6) is open to this intake duct (
5) It is an intake fan installed inside. (7) is a louver installed at the outside air intake (3Jit1), and (8) is a removable filter installed horizontally in the middle of the intake duct (5).

Next lζ operation Iζ will be explained. A fan (6) introduces outside air from a looper (7) through a filter (8) to cool the screen (2).

[Problem to be solved by the invention]

Conventional image display devices are configured as described above, so even when the device is stopped, outside air is introduced through the louvers, resulting in severe contamination of the filter and the need to constantly clean the filter when restarting the device. There was a section.

This invention was made in order to solve the above-mentioned problems, and aims to provide an image display device that can be restarted without cleaning the filter and can prevent outside air from being introduced while the device is stopped. purpose.

[Means for resolving the line gap]

In the image display device according to the present invention, the louver of the outside air intake port is removed and a shutter device is provided at the outside air intake port.

[For production]

In the image display device according to the present invention, the shutter device closes the outside air intake port when the image display device is not in operation, thereby preventing the introduction of outside air.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
In Figure 3, (IA) is a mounting part provided at the outside air intake port (3) of the display device main body (1), and (9) is a shutter device attached to this mounting part (IA). It consists of a movable piece (9A) and a grille (9B) which is the fulcrum of the movable piece (9A).

Note that the description of the other configurations with Iζ will be omitted as in the prior art.

Next, the operation will be explained. While the image display device is in operation, the suction force of the fan (6) draws in outside air from the outside air intake port (3) by sucking up the movable piece (9A) of the Nyanotar device (9) as shown in Figure 3. do. Then, when the image display device stops operating, is it because the suction power of the fan (6) is lost? ! JlllJJ piece (9A) is the second
As shown in the figure, it falls under its own weight and closes the outside air intake (3). Therefore, outside air will not enter the device circle, and even when the device is restarted, the filter (8) will not be contaminated and there will be no need to clean the filter (8).

〔Effect of the invention〕

As described above, according to the present invention, since the shutter device is configured to be housed in the outside air intake port, cleaning of the filter becomes unnecessary even when the device is restarted.

[Brief explanation of drawings]

111 to 1113 are views showing an image display device according to an embodiment of the present invention, in which FIG. 1 is a sectional side view, FIG. 2 is a side view when the shutter device is closed, and I! ! FIG. 3 is a side view when the shutter device is opened, and FIG. 4 is a cross-sectional side view showing a conventional image display device. In the figure, (1) is the display device body, (2) is the screen, (3) is the outside air intake, (5) is the air duct, (6) is
is an air fan, (8) is a filter, and (9) is an air soter device. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] A display device main body provided with a screen on the front surface, an air duct having one end communicating with an outside air intake provided in the display device main body and an outlet opening the other end opening on the back side of the screen, and this air duct. In the image display device, the image display device has an intake fan installed in the air duct, and a filter detachably installed in the air duct from inside the display device main body, characterized in that a shutter device is disposed in the outside air intake port. image display device.