JPH02187583A - Portable cooling device - Google Patents

Abstract

PURPOSE:To miniaturize and lighten a portable cooling device and to enable cold soft drinks or beer or the like to be taken as desired even at an outdoor circumstance by a method wherein a refrigerant gasified by pressure reduction such as liquid nitrogen is enclosed adjacent to a cooling chamber and further a part of a passage for discharging the refrigerant is provided with a previously formed refrigerant chamber. CONSTITUTION:A cooling chamber 3 for storing a cooled item and a refrigerant chamber 4 are stored in a portable container 1. At the refrigerant chamber 4, refrigerant 5 such as liquid nitrogen, liquid freons or the like is enclosed in a sealed container made of synthetic resin, a discharging passage 6 extending from a predetermined position at an upper side to a bottom part of the chamber and an outlet of the discharging passage 6 are sealed and then a projection 7 projection outwardly is integrally formed with the outlet. The cooling chamber 3 is axially and slidably supported within the container 1 and fitted therein. An object to be cooled is stored in the cooling chamber. A predetermined spacing is kept between the bottom part of the cooling chamber 3 and the refrigerant chamber 4. As the cooling chamber 3 is displaced downwardly, the projection 7 is broken at its root part to cause an outlet of the discharging passage 6 to be opened or communicated with the surrounding area, the refrigerant discharged in its atomized state passes through a gasification passage 8 while removing a gasification heat from the surrounding area through its gasification and then the refrigerant is discharged through a drain hole 9 into the surrounding atmosphere.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a portable cooling device that cools objects to be cooled, such as beer or drinking water, when desired by the user.

<Prior Art> Conventional cooling devices use a refrigerant circulation method in which heat is removed from the object to be cooled when the refrigerant is vaporized, and the vaporized refrigerant is compressed by a compressor to return it to a liquid state.

<Problem that the invention seeks to solve> The problem to be solved by the present invention is to provide a portable cooling device.

Means for Solving the Problems> The portable cooling device of the present invention includes a cooling chamber for storing an object to be cooled, such as drinking water, and a refrigerant, such as liquid nitrogen, which is evaporated by depressurization and is enclosed adjacent to the cooling chamber. and a refrigerant chamber in which a part of a passage for discharging the refrigerant to the outside is formed in advance, and the passage opens due to relative displacement or rotation of the cooling chamber and the refrigerant chamber, and the refrigerant is discharged. The refrigerant is characterized by having a valve opening means for starting the cooling, and a vaporization passage through which the refrigerant discharged from the passage is discharged to the outside while contacting the cooling chamber.

Function> This cooling device is sold with refrigerant sealed in the refrigerant chamber.

A user carries an object to be cooled, such as drinking water, stored in the cooling chamber.

When the valve opening means is operated at a desired time, the refrigerant is discharged from the passage in the refrigerant chamber to the outside world through the vaporization passage, and at this time, the heat of vaporization is taken from the cooling chamber and the object to be cooled is cooled.

<Example> FIG. 1 shows a sectional view of an example of the present invention in an uncooled state, and FIG. 2 shows its cooled state.

A portable container 1 enclosing the whole has a cylindrical shape, and its top opening is closed by a lid 2. The portable container 1 accommodates a cooling chamber 3 for storing objects to be cooled, and a refrigerant chamber 4 for sealing a refrigerant such as liquid nitrogen or liquid fluorocarbon. The refrigerant chamber 4 is a sealed container made of synthetic resin in which a refrigerant 5 such as liquid nitrogen or liquefied fluorocarbon is sealed in advance, and a discharge passage 6 extending from a predetermined position on the upper side to the bottom of the room and the outlet of the passage 6 are sealed. A protrusion 7 that stops and protrudes outward is integrally formed. The cooling chamber 3 is fitted and supported so as to be slidable in the axial direction within the container 1, and an object to be cooled, such as drinking water, is stored therein. In the uncooled state, as shown in Fig. 1, the cooling chamber 3
A predetermined distance is maintained between the bottom of the cooling chamber 4 and the cooling chamber 4. This can be accomplished by known means such as spacers, bayonet mechanisms, screws, etc. A vaporization passage 8 is formed on the outer periphery of the lower half of the cooling chamber 3, and an exhaust hole 9 is provided in the side wall of the container 1 for discharging vaporized refrigerant to the outside.

In such a device, for example, by removing the spacer and pressing and displacing the cooling chamber 3 downward, or by rotating the cooling chamber 3 and displacing the cooling chamber 3 downward, the protrusion 7 breaks from the base and the second As shown in Figure 2, the outlet of the discharge passage 6 is opened, and the refrigerant discharged in the form of a mist passes through the vaporization passage 8 while absorbing vaporization heat from the surroundings and reaches the exhaust hole 9.
is discharged to the outside.

FIG. 3 shows the main parts of another embodiment of the present invention in an uncooled state, and FIG. 4 shows the cooled state.

A valve chamber 11 is provided at the center of the top of the refrigerant chamber 10, and a discharge passage 12 extends from the lower end of the valve chamber 11 to the bottom of the chamber.
A valve body 13 that is vertically displaced within the valve chamber 11 and a spring 14 that presses the valve body 13 upward are provided. The upper half of the valve body 13 protrudes upward from the valve chamber 11,
The pressing member 15 fits into the protrusion and is vertically displaced together with the valve body 13. As shown in the figure, the valve body 13 has an inverted letter-shaped through hole, and a through hole 16 that communicates with the through hole is connected to the pressing member 15.
It is also worn. In the uncooled state, the valve body 13 has changed to its upper limit, and as a result, the lower end opening of the inverted letter-shaped through hole is closed by the wall of the valve chamber 11, but the cooling chamber 3 is displaced downward and the pressing member 15 and the valve body 13 are pushed down, a passage from the valve chamber 11 to the through hole 16 of the pressing member is opened, and discharge of the refrigerant is started.

In addition to the one-time use type in which the entire cooled drinking water is thrown away after drinking it, the present invention has a structure in which the bottom of the container 1 can be opened and closed, and the refrigerant chamber can be replaced with a new one.
It is also possible to use a durable type that allows the cooling chamber 3 to be used repeatedly.

<Effects of the Invention> According to the present invention, since it is equipped with a refrigerant chamber filled with compressed liquefied refrigerant, it is much smaller and lighter than conventional ice boxes, and can be used outdoors when there is no refrigerator. You can drink cold drinking water, beer, wine, etc.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an uncooled state of one embodiment of the present invention, Fig. 2 is a sectional view showing its cooled state, and Fig. 3 is a sectional view showing an uncooled state of main parts of another embodiment of the present invention. FIG. 4 is a cross-sectional view showing the cooling state.・Container, cooling room, refrigerant room, liquefied refrigerant, discharge passage, vaporization passage, valve chamber, valve body, pressing member

Claims (1)

[Claims] A cooling chamber that stores objects to be cooled, such as drinking water, and a refrigerant that evaporates due to reduced pressure, such as liquid nitrogen, is sealed adjacent to the cooling chamber, and a part of the passageway for releasing the refrigerant to the outside. a pre-formed refrigerant chamber; a valve opening means for opening the passageway and starting releasing the refrigerant due to relative displacement or rotation between the cooling chamber and the refrigerant chamber; A portable cooling device that has a vaporization passageway that is in contact with a cooling chamber and discharged to the outside world.