JPH0241904Y2 - - Google Patents

Description

[Detailed description of the invention] (1) Technical field of the invention The invention relates to an air cooling device. In particular, a hollow columnar body is divided into two regions along its longitudinal direction by a partition member, and the two regions are heated by flowing air in the same direction or in opposite directions along the partition member. The present invention relates to an improvement in improving heat exchange efficiency by changing the shape of the partition member of an air cooling device.

(2) Background of the technology and problems with the conventional technology Air cooling devices used to cool the inside of box-shaped objects such as switchboards are
Figures 3b and 3b are front views and A-A thereof, respectively.
There is a sectional view, and a BB sectional view thereof.
In the figure, 1 is a hollow columnar body that forms the main part of the air cooling device and has a rectangular cross section. This hollow columnar body 1 is partitioned along the longitudinal direction by a partition member 2 to form two regions 3 and 3'. 4,
4' are upper and lower airflow adjustment areas, respectively.
Air blowers 5, 5' are provided. One area 3
communicates with one air flow regulating region 4', and the other region 3' communicates with the other air flow regulating region 4'. One of the two air streams X, Y for heat exchange
is a blower 5, an air flow adjustment area 4, and one area 3.
The air passes through and flows out from one air outlet 6. The other air flow Y passes through the blower 5', the air flow adjustment region 4', the other region 3', and exits from the other air outlet 6'. It goes without saying that it is not essential that the directions of the two airflows X and Y be opposite to each other as shown. They may be in opposite directions or in the same direction.

The shape of the partition member 2 in the air cooling device according to the prior art is either a zigzag rectangular shape in which U-shaped partition plates are connected to each other, as shown in FIG. 3a, or a chevron shape as shown in FIG. 3b. Or, it had a shape in which corrugated partition plates were alternately connected in opposite directions.

The reason why the above shape was adopted is that this shape has good workability and the partition member can be manufactured easily.

When an air cooling device with such a structure is used, the air cooling device may be installed on the door of a box-shaped object such as a switchboard,
It is possible to cool the air inside a box-shaped object with high efficiency by attaching it to a wall, etc., and circulating the inside and outside air without mixing, but in recent years,
As power transistors are widely used, especially in high-frequency switching regulators, heat losses generated by power transistors, such as switching losses, increase.
Cooling technology has become an issue. If the cooling is simply to be strengthened, it would be possible to install a cooler or the like inside the panel that houses the device that uses power transistors, but this would make the panel larger and would also impose a greater economic burden. It's unrealistic. Therefore, in order to dissipate the heat loss generated inside the panel, we developed a heat exchanger that has good heat exchange efficiency, is compact, has good workability, can be easily manufactured, and has a low economic burden. The development of a device was desired.

(3) Purpose of the invention The purpose of the invention is to meet the above-mentioned requirements, and is to divide a hollow columnar body into two regions along its longitudinal direction with a partition member, and to divide the hollow columnar body into two regions along the longitudinal direction, and to divide the hollow columnar body into two regions along the longitudinal direction of the hollow columnar body with a partition member. An object of the present invention is to provide an air cooling device in which heat exchange efficiency is further improved in an air cooling device which exchanges heat by flowing air in the same direction or in opposite directions along the lines.

(4) Structure of the invention The structure of the invention consists of a hollow columnar body divided into two areas along the longitudinal direction by a partition member, and is made by flowing air along the partition member to exchange heat. In the air cooling device, the cross-sectional shape of the partition member in a direction perpendicular to the air flow forms a zigzag triangle.

In other words, by forming the partition member into a zigzag triangle shape in which the triangular partition plates are connected to each other, the number of zigzags, that is, the number of peaks, is increased for the same ventilation cross-sectional area, and the heat exchange area is increased. It has improved heat exchange efficiency. Moreover, the cross-sectional shape of this partition member is almost as simple as that of the conventional technology, so it has good workability and can be manufactured easily compared to the conventional technology. It is largely the same as the case.

(5) Embodiment of the invention An air cooling device according to an embodiment of the invention will be described below with reference to the drawings.

Refer to FIG. 4 This figure shows a partition member of an air cooling device according to an embodiment of the present invention, and is a view corresponding to FIGS. 3a and 3b above. In the figure, 1 is a hollow columnar body, 21 is a partition member, and 31 and 31' are two areas separated by the partition member 21. As is clear from the figure, the partition member 21 has a zigzag hexagonal shape.

Refer to Figure 5. The figure shows the partition member 21 of the present invention and the prior art (1).
The number of zigzags (number of ridges) is compared with the partition member 2 in the example shown in FIG. 3a). As is clear from the figure, the number of zigzags can be increased up to twice. As a result, the heat exchange area can be roughly doubled, and the heat exchange efficiency can also be nearly doubled. It should be noted that the folding mold used for manufacturing the partition member 21 has the advantage of being able to be used as is, which was used for manufacturing the partition member 2 of the air cooling device according to the prior art. The above describes the partition member 21 according to the invention of the present application in the third a as an example of the prior art.
Although this is a comparison with the partition member 2 shown in the figure, it is clear that the same is true when compared with the partition member 2 shown in Fig. 3b as another example of the prior art.

(6) Effects of the invention As explained above, according to the invention, a hollow columnar body is divided into two regions along its longitudinal direction by a partition member, and the two regions are connected to each other along the partition member. In an air cooling device that exchanges heat by flowing air in the same direction or in opposite directions,
It is possible to provide an air cooling device with further improved heat exchange efficiency.

[Brief explanation of the drawing]

Figures 1, 2, and 3a and 3b are a front view and A-A of the air cooling device according to the prior art, respectively.
FIG. 3 is a sectional view taken along line B-B. FIG. 4 is a horizontal sectional view of the air cooling device according to the present invention. Fifth
The figure is a diagram comparing the number of zigzags between the partition member of the air cooling device according to the present invention and the partition member according to the prior art. 1... Hollow columnar body, 2, 21... Partition member,
3, 3', 31, 31'...Area divided by partition members, 4,4'...Air flow adjustment area, 5,5'...Blower, 6,6'...Air Outlet, X, Y...air flow.

Claims (1)

[Claims for Utility Model Registration] Consisting of a hollow columnar body 1 partitioned into two regions 31 and 31' in the longitudinal direction by a partition member 21, air is flown along the partition member 21 for heat exchange. An air cooling device characterized in that the partition member 21 has a zigzag triangular cross-sectional shape in a direction perpendicular to the air.