JPH0282693A - Cooling device in casing - Google Patents

Abstract

PURPOSE:To improve cooling efficiency by performing the intake and evacuation of air by defining with partitions a unit in a casing into a plurality of blocks of air passages and providing intake means and a discharge fan on each air passage. CONSTITUTION:A partition wall 6 is provided on the sides of a unit 2 and of units 3 to 5 to define air passages. A longitudinal partition wall to define air passages into respective blocks on the sides of the unit 2 and the units 3 to 5 shares their roll with a printed board 2a. Intake ports 8 and 9 are provided through the bottom of a casing 1 on the parallel sides of the units 3 to 5 and on the side of the unit 2, and a plurality of discharge fans 10, and a discharge fan 11 are attached respectively to a discharge outlet of a central discharge passage 7a and to the interiors of discharge passages 7b on both sides. In such a manner, the units 2 to 5 in the casing 1 are divided with the partition walls 2a, 6 into two blocks of the air passages to separate air flows for respective coolings and prevent them from interfering from each other. Accordingly, intake and evacuation of air can effectually be done to assure satisfactory cooling in the casing 1.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a device in which a unit such as a printed circuit board circuit, a power supply device, an electronic device, etc. is mounted in a housing, and the heat generated by the unit is discharged to the outside. This invention relates to an in-casing cooling device for cooling.

Conventional technology Conventionally, when the packaging density of units increases or the volume of the housing increases, this type of in-casing cooling device uses multiple fans to dissipate the heat inside the housing for cooling. It is configured as follows.

Hereinafter, the above conventional example will be explained with reference to the drawings.

As shown in FIG. 4, a relatively large unit 22 consisting of, for example, a plurality of printed circuit boards is provided on the back side of the housing 21, and a relatively large unit 22, such as a floppy disk or hard disk, is provided on the front side of the housing 21. small uninos)
23, 24, and 25 are installed in parallel. unit 22
On the 23.2425 side, suction fans 28 and 29 are attached to the suction ports 26 and 27 at the bottom of the housing 21, respectively, in a direction perpendicular to the suction direction of the suction fans 28.29, and The housing 21 that is the remote side of
An exhaust fan 31 is attached to an exhaust port 30 on the upper back side of the machine.

Next, the operation of the above conventional example will be explained.

When the intake fan 28, 29 and the exhaust fan 30 are driven,
Outside air is sucked into the housing 2 by the rotation of the intake fans 28 and 29, and the sucked air flows along each unit 22 and 23, 24, and 25 as shown by the dotted arrows, and is then sucked into the housing by the exhaust fan 31. In this way, even in the conventional cooling device described above, the fan 28.
9.2 each unit by selecting placement, number, and strength of 31
Heat generated from the housings 2 to 25 can be discharged to the outside of the housing 21 to cool the inside of the housing 21.

Problems to be Solved by the Invention However, in the conventional cooling device described above, there is a difference in the strength of the air flow between the unit 22 side and the units 23, 24, 25 sides within the housing 21, and in reality If the air does not flow in an orderly manner and the air flows interfere with each other, causing turbulence in the flow, the air inside the housing 21 cannot be exhausted efficiently and sufficiently, and the cooling efficiency is reduced. There was a problem with it being bad.

The present invention solves these conventional problems, and provides an in-casing cooling device that can improve the efficiency of discharging air inside the housing, and thus improve the cooling efficiency. The purpose is to

Means for Solving the Problems In order to achieve the above object, the present invention provides a partition wall for separating the air flow for each of a plurality of blocks of a unit mounted in a housing, and also provides a partition wall partitioned by the partition wall. Each air passage is equipped with suction means and an exhaust fan for circulating air inside and outside the housing.

Therefore, according to the present invention, the inside of the casing is divided into a plurality of air flow paths for each block by partition walls, and each air flow path is provided with a suction means and an exhaust fan, and air is circulated in each air flow path. This allows the air to be circulated in an orderly manner and discharged outside the housing.

EXAMPLES Hereinafter, examples of the present invention will be described with reference to the drawings.

1 to 3 show a case cooling device according to an embodiment of the present invention, in which FIG. 1 is a side view with the case broken away, FIG. 2 is a rear view with the case partially cut away, and FIG. The figure is a perspective view of main parts.

As shown in FIGS. 1 to 3, a relatively large unit 2 consisting of, for example, a plurality of printed circuit boards 2a and 2b is provided on the back side of the housing 1, and a floppy disk, for example, is provided on the front side of the housing 1. , a plurality of relatively small units 3°4.5 such as hard disks are arranged in parallel. In this embodiment, a partition wall is provided to divide the air flow path between the unit 2 side and the unit) 3, 4.5 side, and each block on the unit 2 side and the unit) 3, 4.5 side is provided with a partition wall. The vertical partition wall for dividing the air flow path is also used by a printed circuit board 2a having a width approximately equal to the inner width of the housing 1, and the upper partition wall 6 continues to the upper end of this printed circuit board 2a.
It is provided to cover the printed circuit board 2b, that is, the unit 2.

This partition wall 6 allows the discharge passage 7 of the block on the unit 2 side to
a and unit) 3, 4.5 side block discharge passage 7b
is divided into a central portion and both side portions, and each discharge channel 7a, 7b is open to the back of the housing 1. On each block side, that is, on the unit 2 side and the parallel side of Unino) 3, 4.5, casing 1
Suction ports 8 and 9 are provided at the bottom of the exhaust flow path 7a, a plurality of exhaust fans 10 are attached to the exhaust port of the exhaust flow path 7a in the center, and exhaust fans 11 are installed inside the exhaust flow path 7b on both sides. installed.

Next, the operation of the above embodiment will be explained.

When the equipment starts operating, the exhaust fans 10 and 11 also operate at the same time. Air is sucked in through the suction port 8 by the rotation of the exhaust fan 10.1. This air absorbs its heat while flowing along the unit 2 of one block, and the exhaust flow path 7
It is discharged to the outside of the casing 1 from a. On the other hand, exhaust fan 1
1, air is sucked in through the intake port 9, and this air absorbs its heat while flowing along the UNISO 3, 4.5 of the other block, and is discharged to the outside of the casing 1 through the exhaust flow path 7b. be done.

In this way, according to the above embodiment, the units 2, 3, 4.5 in the housing 1 are divided into two blocks of air flow paths by the partition wall 2a16, and the air flow for cooling is separated from each other. Since they are arranged so that they do not interfere with each other, air can be taken in and exhausted efficiently, and the inside of the casing 1 can be sufficiently cooled. Furthermore, by improving the cooling efficiency as described above, it is possible to reduce the number of fans and downsize the fan.

In the above embodiment, the suction lower 8 is used to improve cooling efficiency as described above, but a suction fan may also be used. Also.

Although the printed circuit board 2a also serves as a part of the partition wall,
Separately, a partition wall may be provided.

Effects of the Invention As described above, according to the present invention, the inside of the casing is divided into a plurality of air flow paths for each block by partition walls, and each air flow path is provided with a suction means and an exhaust fan. Since the air is made to circulate between the two, the air flows do not interfere with each other, and the air can be circulated in an orderly manner and discharged outside the housing. Therefore, air can be taken in and exhausted efficiently, and cooling efficiency can be improved.

[Brief explanation of the drawing]

Fig. 1 is a side view with the casing of an in-casing cooling device according to an embodiment of the present invention broken away, Fig. 2 is a rear view with the casing partially broken away, Fig. 3 is a perspective view of the main parts, and Fig. 4 The figure is a cutaway side view of a casing formed by a conventional in-casing cooling device. 1... Housing, 2... Unit, 2a... Printed circuit board (partition wall), 2b... Printed circuit board, 3, 4.5... Unit, 6. Partition wall, 7a, 7b... Discharge channel , 8,
9...Intake port, 10, 11 Exhaust fan.

Claims (1)

[Claims] A partition wall is provided for separating the air flow for each of the plurality of blocks of the unit mounted in the housing, and an intake means is provided for circulating air inside and outside the housing in each air flow path divided by the partition wall. and an internal cooling system with an exhaust fan.