JPS6033238B2 - End structure of refrigerant enclosure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the structure of a container for enclosing cold soot.

BACKGROUND ART As power equipment, electronic equipment, electronic elements, etc. become smaller and larger in capacity, cooling them has become a major problem.

As a means for efficiently cooling these, a heat transfer device in which low-point soot (such as Freon) is sealed in a closed container may be used to cool the heating element by the boiling-condensing action of the cold butter. In such a cooling structure, the problem now is the structure of the end of the container.

That is, FIG. 1 shows an example of the end structure of a conventional refrigerant enclosure.

The end portion 1' of the container 1 is flat, and a small hole 2 is provided in a part thereof, and a stopper 3 is provided therein. The role of this stopper 3 is to seal cold soot after sealing it inside the container 1 to prevent it from escaping to the outside. The stopper 3 is made of metal and is phosphorized into the hole 2 of the container 1. In such a structure, when the temperature inside the container 1 rises and the internal pressure rises, the end 1' of the container 1 is a flat surface, so when the internal pressure acts as shown in Fig. 2, it bends outward. A gap is created at the contact area between the side wall of the small hole 2 of the swollen end 1' and the stopper 3. Therefore, the cold soot inside the container 1 escapes to the outside, which is very inconvenient. In addition, as shown in Fig. 3, even with a structure in which a disc-shaped lid plate 4 serving as a stopper is joined to the end side of a container 1 for filling soot with a brazing material 5, when the internal pressure increases, As shown in FIG. 4, the cover plate 4 is bent due to the application of internal pressure.

For this reason, a gap is created at the joint between the lid plate 4 and the wax village 5, and cold soot (not shown) inside the container 1 escapes to the outside.
It was very inconvenient. Also, it took time to weld the plug material. In addition, a method as described in US Pat. No. 3,543,841 is also known, but it has the same problems as above. The present invention provides an end structure for a cold soot enclosing container that eliminates the above-mentioned drawbacks.

An embodiment of the end structure of the soot sealing container of the present invention will be described below with reference to FIG.

Container 1 contains a refrigerant such as low boiling point CFC (not shown)
The container 1 has a curved end 1'.

A small hole 2 is provided in a part of this curved portion, and a stopper 3 made of a brazing material or the like having a lower melting point than the material of the container 1 is provided therein.
is provided. Among all curved shapes, the hemispherical shape is the most resistant to pressure. With this structure, even if a large internal pressure is generated, the end portion 1' of the container 1 will not be deformed as in the case of a conventional flat shape, so the small hole 2 of the oribe 1' will not be deformed.
There is no gap between the side wall of the plug 3 and the plug 3, so that the refrigerant does not escape to the outside.

In the above, the position of the small hole 2 where the plug 3 is provided may be any part of the curved end 1', but considering ease of processing during mass production and ease of plugging work, etc. As shown in FIG. 5, it is preferable to provide it at the end of the container 1 on the axis ○.

In the stoppering operation, a ball-shaped stopper may be inserted and set from inside the container 1 with the end 1' of the container 1 facing downward.

In this case, since the end portion 1' of the container 1 is curved, the ball-shaped solid material is inevitably positioned in the small hole 2, which improves workability and productivity. . In addition, an infrared heater or burner is used to heat the end 1' and weld the plug material, but in this case, since the end 1' has a curved shape, the two small holes protrude outward. The vicinity of the small hole 2 is quickly heated, and the welding time can be shortened. As explained above, in the present invention, since the stopper is provided at the axial tip of the curved part that projects outward, the cold soot inside the container does not escape from the stopper part to the outside of the container, and Welding time for plug village is shortened.

[Brief explanation of the drawing]

Figures 1 and 3 are partial cross-sectional views showing an example of the end structure of a conventional soot enclosing container, Figure 2 is a diagram showing a modification of the end in Figure 1, and Figure 3 is a conventional FIG. 4 is a partial cross-sectional view showing another example of the end structure of the refrigerant enclosure container of the present invention, FIG. 4 is a view showing a modification of the end portion in FIG. 3, and FIG. FIG. 3 is a partial cross-sectional view illustrating an example of a partial structure. 1... Container, 2... Small hole, 3... Stopper. Gunna map Trout map

Claims (1)

[Claims] 1. A container for enclosing a low boiling point refrigerant, characterized in that the end of the container has a curved shape that projects outward, and a stopper is provided by welding at the tip of the axis of this curved part. Container end structure.