COOL-BOX COMPRISING A REFRIGERATOR ATTACHMENT, SAID COOL-BOX OPERATING WITHOUT POWER OR ICE

Abstract

The invention relates to a cool-box comprising a refrigerator attachment, said cool-box operating without power or ice. The cool-box is formed by a preferably plastic casing to which a metal capsule is anchored that contains a cryogenic liquid, such as liquid nitrogen or liquid oxygen, acting as a liquid coolant. The capsule is removably attached to the casing of the cool-box using anchors, and the capsule is equipped with a valve for the injection-refilling of liquid coolant and an exhaust relief valve. The cool-box also comprises an insulating lid and connecting pipes made from thermally conductive sheet metal, which join the capsule to the interior of the casing, thereby transferring cold.

Claims

1. Portable cooler having a connectable refrigerator, having no power supply or ice, made of a housing preferably of plastic, a sandwich insulating material, where said material may be expanded polystyrene, characterized by having the following elements: a capsule containing a cryogenic liquid made of a metal or metal alloy having good thermal conductivity characteristics, where said capsule contains a recharge valve and a vent valve for alleviating the cryogenic liquid; connection ducts consisting of sheets made of metal or metal alloy having good thermal conductivity characteristics, connecting the capsule with the inside of the housing for transferring the cold; connecting means of the capsule to the housing of the portable cooler, such that said capsule is dismountable for recharging the cryogenic liquid; an insulated cover; a cryogenic liquid, such as liquid nitrogen or liquid oxygen, functioning as a refrigerant liquid; a valve for recharging the refrigerant liquid by means of injection, and a vent valve for alleviating.

2. Portable cooler having a connectable refrigerator, having no power supply or ice, characterized by functioning because the temperature of the capsule containing the cryogenic liquid is well below zero, for example: nitrogen liquefies at 320.8 F. and argon at 302.6 F., connecting said capsule to the housing and mitigating the temperature emitted towards the outside through the insulating material and transmitting through the attachment points consisting of thermal conductive sheets, cooling the container according to the needs of the cooling device, such that any food or beverage is cooled, refrigerated, or frozen, where an apparatus for recharging the cryogenic liquid through the valve is needed, said apparatus being made of a cryogenic liquid bottle and an injection valve such that, when operated, the product is introduced inside said apparatus, and it introduces the liquid or gas through a valve, once the product is recharged, the housing is closed again and the apparatus is ready to be used again, where the container slowly loses its cooling capability and it must be charged for recovering its cooling function, to this end, the housing of the invention is dismounted by means of a threaded cover, the cryogenic container being exposed for receiving a liquid injection to the capsule such that said container can recover its cooling function.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0042] In order to better understand the present specification, a non-limiting drawing showing a preferred embodiment of the invention is provided:

[0043] FIG. 1: Conventional perspective view of the portable cooler having the capsule connected to the housing.

[0044] FIG. 2: Conventional perspective view of the portable cooler having the capsule disconnected from the housing.

[0045] FIG. 3: Cross section view of the cooler.

[0046] FIG. 4: Front and side cross section view of the housing. In said figure, the following number elements are shown:

[0047] 1. Portable cooler

[0048] 2. Housing

[0049] 3. Connection ducts consisting of thermally conductive sheets

[0050] 4. Insulating material

[0051] 5. Capsule

[0052] 6. Cryogenic liquid

[0053] 7. Insulating cover

[0054] 8. Recharge valve

[0055] 9. Vent valve

[0056] 10. Capsule connection means

DESCRIPTION OF A PREFERRED EMBODIMENT

[0057] A preferred embodiment of the portable cooler (1) being the object of the present invention is made of the following elements: [0058] A housing (2), preferably made of plastic, [0059] A sandwich insulating material (4), where said material may be expanded polystyrene. [0060] A capsule (5) containing said cryogenic liquid made of a metal or metal alloy having good thermal conductivity characteristics. Said capsule (5) contains a recharge valve (8) and a vent (9), the latter being for alleviating the pressure of the cryogenic liquid (6). [0061] Connection ducts consisting of sheets made of metal (3) or metal alloy having good thermal conductivity characteristics, connecting the capsule (5) with the inside of the housing (2), permitting the transfer of cold. [0062] Connecting means (10) of the capsule (5) to the housing (2) of the portable cooler (1), such that said capsule (5) is dismountable for recharging the cryogenic liquid (6). [0063] An insulated cover (7). [0064] A cryogenic liquid (6), such as liquid nitrogen or liquid oxygen, functioning as a refrigerant liquid. [0065] A valve (8) for recharging the refrigerant liquid by means of injection. [0066] A vent valve (9) for alleviating.

[0067] The invention disclosed in the present specification functions because the temperature of the capsule (5) containing the cryogenic liquid is well below zero, for example: nitrogen liquefies at 320.8 F. and argon a302.6 F., connecting said capsule (5) to the housing (2) and mitigating the temperature emitted towards the outside through the insulating material (4) and transmitting through the attachment points consisting of thermal conductive sheets (3), cooling the container according to the needs of the cooling device, such that any food or beverage is cooled, refrigerated, or frozen.

[0068] In addition to the elements disclosed above, an apparatus for recharging the cryogenic liquid through the valve is needed. Said apparatus for recharging the cold is made of a cryogenic liquid or cryogenic gas bottle and an injection valve. The product is introduced inside said apparatus, and it introduces the liquid or gas through a valve. Once the product is recharged, the housing is closed again and the apparatus is ready to be used again.

[0069] The container slowly loses its cooling capability and it must be charged for recovering its cooling function. To this end, the housing of the invention is dismounted by means of a threaded cover, the cryogenic container being exposed for receiving a liquid injection to the capsule such that said container can recover its cooling function.

[0070] In different embodiments, the portable cooler of the present invention may adopt other configurations suitable for other applications, and it can also use CO.sub.2.