JPH03110893A - Door of body of equipment - Google Patents

Abstract

PURPOSE:To eliminate a need for changing a design whenever a built-in apparatus is changed by a method wherein an induction part of an air-inhalation induction sheet is formed as an expansion and contraction structure whose length can be changed in such a way that its upper-edge part reaches a part near the front of a desired panel and its lower-edge part can set an induction air-inhalation area with reference to a vent hole. CONSTITUTION:The air is inhaled from vent holes 3 formed not in the whole surface but in parts of a door 2 of a body of equipment; it is induced to parts near desired panels 4 equipped with fans by using an air-inhalation induction sheet 5 on the rear; it is sucked and evacuated to the rear; it is discharged from vent holes 3 formed in the whole surface of a rear cover 14. Since a length of an induction part 6 of the air-inhalation induction sheet 5 is of a two-leaved expansion and contraction structure and can be changed up to about two times, an upper-edge part can be situated up to a position of the desired panels 4 mounted at the comparatively upper part from a position of the vent holes 3. An air-inhalation amount induced from the vent holes 3 must be distributed properly to an air-inhalation portion for other natural air-cooled apparatus; a lower-edge part of the air-inhalation sheet is equipped with a mechanism which can be changed to a prescribed position. Thereby, it is not required to change a design whenever a built-in apparatus is changed.

Description

[Detailed Description of the Invention] [Summary] An object of the present invention is to provide a convection cooling case structure that does not require design changes each time a built-in device is changed, regarding a case door provided with cooling ventilation holes. Partially provided with ventilation holes, an slanted intake guide plate is provided on the back side that spans the entire inner width of the casing, and the upper edge of the guide part of the intake guide plate reaches near the front of the desired panel mounted on the casing. As such, it has a two-ply telescopic structure whose length can be varied, and the lower edge is provided with a position variable mechanism so that the induced intake area can be set to a predetermined value with respect to the ventilation hole.

[Industrial application field]

The present invention relates to a housing door provided with cooling ventilation holes.

Electronic equipment is generally housed in a housing to protect it from the outside, unify its external shape and mounting structure, and give consideration to its design.

[Conventional technology]

Figure 3 (a) is a perspective view of a conventional example of a housing, and Figure 3 (b)
shows a sectional view of the same side.

In addition to mechanical protection, protection from the outside includes electromagnetic shielding, cooling measures for internal heat generation, measures against harmful gases, and dustproof measures, all of which are essential.

Here, we will discuss cooling measures for internal heat generation.

An example of a conventional standard type casing is shown in Fig. 3(a).
A rectangular casing 15 with uniform width x depth x height, with the outer periphery of a frame structure in which four pillars 11 are vertically hung between each corner of a ceiling plate 12 and a bottom plate 13 facing each other opened and closed to the front. body door 2
5. It has a structure with a back cover 14 on the back side and side covers 16 on both sides, and mounting screw holes 1 are provided at predetermined intervals on the front column II facing the front and on the rear column 11 facing the back side.
7 is dawn.

The front case door 25 is not only a single piece as shown in the figure, but also a double double door with double doors split in the center (not shown), and ventilation holes 3 are bored at predetermined positions at the top and bottom mainly from the design point of view. .

In addition, the back cover 14 is provided with ventilation holes 3 on the entire surface with emphasis on cooling efficiency.

The equipment mounted inside is a panel 4 having a structure that is provided with ears 41 that fit between the left and right columns 11 and are screwed onto the front left and right columns 11.

Therefore, as shown in FIG. 3 (1)), the panel 4 has a width that is the inner width between the left and right columns 11, and a depth that extends to the mounting depth of the housing 15.
The height can be changed by a predetermined dimension.

Cooling inside the device is sucked in through the front housing door 25 of the housing 15 or the ventilation hole 3 of the back cover 14, the mounted panel 4 is cooled by convection, and warm air is discharged through the ventilation hole 3 at another position.

In natural air cooling, cold air from the outside is taken in through the ventilation holes 3 at the bottom, cools the interior by convection from bottom to top, and warm air is discharged from the ventilation holes 3 at the top.

In forced air cooling using a fan, the system in which the fan is provided in the housing 15 is not effective unless the entire housing 15 has a well airtight structure, and the structure is fft9m, so it is not often used, especially for built-in devices. Some devices that use general-purpose ones already have a built-in fan, and it is easy to put the fan in panel 4. In this case, air is taken in from the front and the fan in panel 4 is used to draw air from the rear. Exhaust the air.
Discharge from the back and ceiling.

[Problem to be solved by the invention]

However, in recent years, due to rapid advances in semiconductor components, computer systems have become smaller, more sophisticated, and more economical, and the lifespan of these products tends to be shortened due to obsolescence. In an electronic device that combines these, the design of the device must be changed in accordance with the product life of the built-in device.

■ In particular, when it comes to equipment that uses general-purpose equipment, the replacement new equipment is not necessarily smaller or consumes less power than the yen, and it tends to be more sophisticated than necessary, and it may be large and equipped with forced air cooling fans. It may happen.

■ Panel 4 with forced air cooling fan in natural cooling type case
If these fans are installed in a mixed manner, the natural convection may be agitated and disturbed by the fan, resulting in a decrease in cooling efficiency.

There are other problems.

SUMMARY OF THE INVENTION In view of these problems, it is an object of the present invention to provide a convection cooling case structure that does not require design changes each time a built-in device is changed.

[Means to solve the problem]

The above problem is solved by the fact that, as shown in the principle structural diagram of FIG. The guide part 6 has a two-layered telescopic structure whose length can be varied so that the upper edge reaches near the front surface of the desired panel 4 mounted on the housing 1,
This problem is solved by the case door of the present invention, the lower edge of which is provided with a position variable mechanism so that the induced intake area can be set to a predetermined value with respect to the ventilation hole 3.

[For production]

That is, air is taken in through the ventilation holes 3 provided not on the entire surface of the housing door 2, but is guided to the vicinity of the desired fan-equipped panel 4 by the intake guide plate 5 on the back side, sucked in, and exhausted to the rear. , are discharged from the ventilation holes 3 formed on the entire surface of the back cover 14.

At this time, since the length of the guide part 6 of the intake guide plate 5 can be changed up to about twice due to the two-ply telescopic structure, the upper edge can be adjusted from the position of the ventilation hole 3 to the position of the desired panel 4 mounted relatively above. can be located.

Further, the guiding portion 6 has a narrow inner width, which prevents warm air inside the housing 1 from going around to the front portion, thereby preventing a decrease in cooling efficiency.

In addition, it is necessary to appropriately distribute the amount of intake air induced from the ventilation hole 3 with the intake volume for other natural air cooling equipment, and for this purpose, the lower edge of the intake air guide plate 5 can be positioned at a predetermined position. Equipped with a mechanism. This position variable mechanism can be easily achieved by a known mechanism.

In this way, it is possible to provide a convection-cooled housing structure that does not require design changes each time the built-in equipment is changed.

[Example] The present invention will be specifically described below with reference to Examples shown in the drawings. The same reference numerals refer to the same objects throughout the design. Figure 2 (
Figure a) is a perspective view of an embodiment of the present invention, Figure A) is an enlarged view of part A of the door of the housing, and Figure (C) is an enlarged view of part B of the door of the housing.

This example is an electronic device in which a system is configured by incorporating a standard personal computer that has already emitted light. Personal computers have a particularly short product life (because of this, the design of electronic devices has been constantly changed). This is a versatile convection cooling case that can be applied to many things.

As shown in Fig. 2 (a), it is a rectangular case 1 with a uniform width x depth x height, and four pillars (not shown) are hung between each corner of the opposing ceiling plate and bottom plate. The outer periphery of the frame structure has a housing door that opens and closes on the front, a back cover on the back, and side covers on both sides, and a panel of built-in equipment is mounted between the front or rear columns.

The front case door 2 is not only one that opens to the left as shown in the figure, but also a double double-sided door that opens in the center (not shown).
Mainly due to the design, ventilation holes 3 are provided at predetermined positions in the upper and lower parts.

In addition, the back cover has ventilation holes all over its surface, with an emphasis on cooling efficiency.

The inside of the device is cooled through the ventilation holes 3 of the housing door 2 on the front of the housing 1.
The heated air is sucked in from the housing and convection-cooled the mounted panel, and warm air is discharged from the back cover, the ventilation hole 3 at the top of the housing door 2, the ceiling plate, etc.

On the back side of the housing door 2, in the space between it and the surface of the panel, there is an intake guiding plate 5 that is inclined upward from the rear with the inner width of the housing L minus the width of the cup.
is the provision.

As shown in Figures (b) and (C), this intake guiding plate 5 includes a guiding part 6 made by bending both sides of a thin iron plate in the same direction, and a fixing part 7 for attaching the guiding part 6 to the housing door 2. It consists of

The guide section 6 has a two-layered stretchable structure whose length can be varied so that the upper edge reaches near the front of the desired panel 4 mounted on the casing 1. That is, approximately 172 mm at both ends of the outer panel 61.
A slit 63 is provided parallel to the length of , and the inner plate 62, which overlaps the inner side of the outer plate 61, is fixed by screwing an adjustment screw 64 that passes through the slit 63. Therefore,
Depending on the screwing position of the adjusting screw 64 within the slit 63, the inner plate 62 gradually protrudes from the completely overlapping state with respect to the outer plate 61, and the edge portion can be made approximately twice as long.

Further, the lower part of the outer Ffj, 61 is bent vertically to form the fixing part 7.

In addition to this, this fixing part 7 includes linear rails 71 with an iron mouth-shaped cross section fixed to both sides of the back side of the lower ventilation hole 3 of the housing door 2.
, a square nut 72 which is movable and prevented from rotating and which is inserted into the rail 71, and a fixing screw 73 that is screwed together.

In this way, the lower part of the intake guide plate 5 is fastened and fixed to the back side of the housing door 2 with the fixing screw 73. At this time, since it can be fixed at an arbitrary position within the rail 71, it is possible to set the lower edge of the guide part 6 to a predetermined guided intake area with respect to the lower ventilation hole 3. This is because cold air intake is required for natural convection cooling of equipment mounted below the desired panel, and the area is allocated according to the required amount of each.

In this embodiment, the upper edge of the intake guide plate 5 is at most
Position at half the height of
It is assumed that it can be fixed to.

〔Effect of the invention〕

As described above, the convection-cooled casing using the casing door of the present invention has the great versatility of not having to make design changes each time the built-in equipment is changed.

The effect is

[Brief explanation of drawings]

Figure 1 is a diagram of the principle structure of the present invention. FIG. 2 shows an embodiment of the present invention. FIG. 3 shows an example of a conventional housing. In the figure, Li2 is the housing, 3 is a ventilation hole, 5 is an intake guide plate; 7 is a fixed part; 12 is the ceiling board, 14 is the back cover 17 through hole; 61 is the outer panel, 63 is a slit, 71 is rail, 2.25 is the housing door, 4 is the panel, 6 is a guiding part; 11 is a pillar; 13 is the bottom plate, 16 is the side cover 41 is the ear part, 62 is internal rebellion, 64 has to be adjusted, 72 is a square nut,

Claims (1)

[Claims] An intake guide plate (5) partially provided with ventilation holes (3) and slanted to the full inner width of the casing (1) is provided on the back side, and the guide part (6) of the intake guide plate (5) is so that the upper edge reaches near the front of the desired panel (4) to be mounted on the housing (1),
A case door having a two-ply telescopic structure whose length can be varied, and whose lower edge is equipped with a position variable mechanism so that the induced intake area can be set to a predetermined value with respect to the ventilation hole (3). .