JPH0814447B2 - Cooling system - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cooling device. In particular, the present invention relates to a cooling device that can easily and highly efficiently achieve a cooling effect when the temperature of the object to be cooled is not excessively high and there is another fluid flow.

[Conventional technology]

For cooling the housing that houses electronic devices such as NS control panels, indirect cooling type cooling devices such as heat exchange type cooling devices are used to protect the electronic devices inside the housing from contamination of the outside air. Often.

[Problems to be solved by the invention]

Indirect cooling type cooling devices such as this heat exchange type cooling device
Generally, a wide wall is used, and the cooling capacity is determined by the size of the wall to be used. Therefore, when it is required to increase the cooling capacity without increasing the area of the wall (for example, NC control panel, etc.). However, it is not possible to deal with the case where an object to be cooled, such as a transformer, which generates a large amount of heat is added.

In such a case (when the temperature of the object to be cooled is relatively low and there is another means for giving a fluid flow such as another cooling device) in such a case, without increasing the space, An object of the present invention is to provide a cooling device that can easily increase the cooling capacity.

[Means for solving problems]

Means adopted by the present invention to achieve the above object,
As shown in FIG. 1, a cooling box 5 is provided on the side surface of the cooling air flow path 3.
The cooling box 5 and the cooling air flow path 3 are communicated with each other through the opening 4, and the cooled object 6 is placed in the cooling box 5.

[Action]

In the cooling device according to the present invention, as shown in FIG. 2, the cooling box 5 and the fluid flow path 3 in which the fluid flows as indicated by the arrow A are connected through the opening 4. ,
The atmospheric pressure in the vicinity of the opening 4 changes oscillatingly, so that a fluid flow as indicated by arrows B and C is generated, and a part of the fluid flowing through the fluid flow path 3 flows into the cooling box 5, and , Cooling box 5
Fluid flows out from. Therefore, unless the temperature of the fluid flowing through the fluid passage 3 is higher than the temperature of the cooled body 6, the cooled body 6 is cooled. Moreover, according to the result of the experiment, it was not necessary to increase the pressure or flow rate of the fluid passage 3 for this additional cooling. In other words, according to the results of the experiment, the addition of the cooling device according to the present invention does not require any additional energy, and there is no detectable change in the temperature of each part before and after the addition of the cooling device. I couldn't do it. This fact does not give a sufficient explanation of the energy required for cooling, but in the prior art, considering that all the objects to be cooled were in the flow path of the cooling fluid, the action peculiar to the present invention (cooling). It is assumed that it is based on the use of the oscillating pressure difference on the side surface of the working fluid channel).

〔Example〕

Hereinafter, a cooling device according to an embodiment of the present invention will be further described with reference to the drawings.

Referring to FIG. 1 and FIG. 2, 1 is a casing such as an NC control panel, 2 is a normal cooling device (heat exchange type cooling device in this example), and the outside air for cooling is the outside air. It is sucked from the outside air suction port 21 having a suction fan, flows in the direction of the arrow, and is discharged from the discharge port 22. Inside air to be cooled is cooled by heat exchange performed through a partition wall (not shown). Reference numeral 3 denotes an exhaust passage of the cooling device 2, but in this example, it is a passage for cooling air according to the gist of the present invention. Reference numeral 4 denotes an opening provided in the cooling air flow path 3, which communicates with the cooling box 5. In the cooling box 5,
The object to be cooled 6 is placed. Fluid (exhaust of cooling device 2)
Are discharged as shown by the arrow.

When the outside air fan provided in the outside air inlet 21 of the normal cooling device 2 is operated, the cooling device 2 operates, but when its exhaust passes through the cooling air flow passage 3, the cooling box 5 and the cooling air flow passage An oscillating change in atmospheric pressure is generated between the exhaust gas and the exhaust gas 3, and the exhaust gas is sucked and discharged into the cooling box 5 to effectively cool the cooled object 6.

〔The invention's effect〕

As described above, the cooling device according to the present invention is provided with the cooling box on the side surface of the flow path of the cooling air, the cooling box and the flow path of the cooling air are communicated with each other with the opening, and the cooled object is Since the fluid flowing in the cooling air flow path is oscillated into and out of the cooling box, the additional cooling target is added to the cooling box. It requires substantially no additional space and additional energy and can be effectively cooled by the fluid flowing through the cooling air flow path. That is, the additional object to be cooled can be effectively cooled by the exhaust of a cooling device provided elsewhere, and the structure is extremely easy.

[Brief description of drawings]

FIG. 1 is a structural diagram of a cooling device according to an embodiment of the present invention. FIG. 2 is a structural diagram of a main part of a cooling device according to an embodiment of the present invention. 1 ... NC control panel or other housing, 2 ... normal cooling device, 21 ... normal cooling device outside air intake port, 22 ... normal cooling device exhaust port, 3 ... cooling air flow path (Exhaust flow path of a normal cooling device), 4 ... Opening, 5 ... Cooling box, 6 ... Cooled object.

Claims (1)

[Claims] 1. A cooling system comprising a cooling box (5) which is provided on a side surface of a cooling air flow path (3) through an opening (4) and in which a cooled object (6) is housed. apparatus.