WO2018042064A1

WO2018042064A1 - Rechargeable modular device for refrigerators

Info

Publication number: WO2018042064A1
Application number: PCT/ES2017/000104
Authority: WO
Inventors: Stephane ESPINOSA NEED
Original assignee: Espinosa Need Stephane
Priority date: 2016-09-05
Filing date: 2017-08-16
Publication date: 2018-03-08

Abstract

Rechargeable modular device for refrigerators intended for keeping food refrigerated for about 48 hours, characterised in that it has a refrigerant tank and a refrigerator. The first is formed by an outer casing and an inner wall with an insulating filling, provided with recharging and gas outlet valves with anchoring projections, permanent magnets and pick-up resistors. The refrigerator, of any type and shape, has openings opposite the anchoring projections and the pick-up resistors coincide with heat-conducting connections inserted in the refrigerator insulation and extending towards the inner walls in the form of metal sheets. The refrigerant tank and the refrigerator are independent but can be coupled. Refrigerant evaporation can be adjusted by the gas outlet valve and the transfer of cold units can be regulated by pick-up resistors linked to heat-conducting connections. The number of metal sheets varies according to the type of refrigerator.

Description

RECHARGEABLE MODULAR DEVICE FOR

REFRIGERATORS

SECTOR PE THE TECHNIQUE REFERRED TO THE INVENTION

The invention presented affects the Section of Mechanics, Humiliation, Heating of the International Patent Classification, paragraph of Technology in General, section of Refrigeration or Enftiarniento with regard to compact portable refrigeration equipment for various uses affecting, from the point industrial view, in the manufacture of refrigerators and refrigeration equipment and their corresponding commercial distribution.

BACKGROUND OF THE INVENTION

The invention described in this document refers to the introduction of certain modifications that perfect the other two presented by the same inventor.

The first one, with the title Food cooler device without energy or ice front corresponds to publication number ES 2454871 Bl, application number P 201200879 and concession dated 23.02.2015.

The second, with the title Portable Fridge with attachable refrigerator, without energy source or ice, was registered in the year 2015 with the application number P 201500342 without it having been published to date. There are other antecedents that are cited in the previous documents that we are going to relate although it can be anticipated that none of them solves the basic problem of refrigeration in the way that the inventor of the current document does.

- ES200899814

- ES2106976T3

The invention, in the process of preparation and development of prototypes, has considered the convenience of introducing some modifications that improve the previous models being that the reason that leads him to present a new document that includes such modifications allowing to optimize said models. DESCRIPTION OF THE INVENTION

The invention presented in this document describes certain modifications that perfect the two previous ones presented by the inventor mentioned in the previous section. The object of the invention is a modular device, applicable to any type of refrigerator, although, for reasons of clarity, this document focuses on a portable refrigerator with sufficient autonomy to be effective for about 48 hours. In the previous models, the tank containing the refrigerant product is installed inside the refrigerator, which implies the inconvenience of having to transport the assembly to the place of recharge every time the refill is needed. the new model in such a way that the refrigerant tank is outside the main body of the refrigerator having means that allow a firm and secure coupling on said main body. Thus; when a refrigerant refill is required, it first proceed to separate the tank from the main body then transporting it, in isolation, to the point of recharge with the consequent advantages of comfort, saving in weight and volume transported. Once recharged, the coolant tank is coupled on the main body of the refrigerator which causes the necessary physical connections to be established so that the cold generated by the progressive evaporation of the coolant is transmitted to the inside of the refrigerator with the consequent cooling of the products it contains.

The inventor conceives a firm coupling between the tank and the refrigerator by means of male appendages that are introduced into the body of the refrigerator by adding, in addition, a series of pendant magnets that optimize said coupling.

The operation is the same as in the previous inventions with the particularity that, according to the needs, the number of connections between the tank and the refrigerator can be modified, which results in an added fertilizer and the achievement of a more efficient device.

As a cooling element, carbon dioxide (CO ₂ ), usually referred to as dry ice or carbonic snow, is preferably used. It receives this name because although it resembles normal ice or snow, due to its appearance and temperature, it does not leave a trace of moisture because its natural state is gaseous even at low ambient temperatures, with its sublimation temperature of -78.5 ° C under pressure. atmospheric

Dry ice should be handled with caution (use of protective gloves), as it can cause burns due to excess cold being that property that is used to cool the products stored in the refrigerator until it is completely sublimated at which time a recharge Alternatively, liquid nitrogen could also be used which, at the pressure of an atmosphere, reaches -193.8 * C but is not recommended due to its greater danger. In general, the modular refrigerator of the invention can be operated with any liquefied gas, and its characteristics must therefore be known in terms of the temperatures that are reached when passing into the gas phase to regulate the temperature desired inside the refrigerator . Although, as noted above, the figures included in this document, as an inseparable part thereof, refer to a small refrigerator, the invention is valid for many other applications among which we can mention the following:

Beach fridge

Beverage cooler

Bottle cooler

Ice cream cart

Beverage cart

Organ and medicine transport

Refrigerators for boats

Cold container transport (industrial)

Refrigerators for trucks

Aircraft cooling

Caten ng

Industrial refrigerators

Industrial freezers

Other types of refrigerators

BRIEF DESCRIPTION OF THE DRAWINGS

Four schematic figures that are considered sufficient for the good understanding of the invention are included. Figures 1 and 2.- They are sectional elevational views (Fig. 1) and profile (Fig. 2) of the refrigerant tank. The following elements have been indicated:

Figure 3.- Represents a side view of the coolant tank once attached to the body of a refrigerator. In addition to the above elements, the following are indicated:

Figure 4.- Shows a schematic view from above of the refrigerant tank and the refrigerator in the coupled state.

DESCRIPTION OF A PE FORM PREFERRED EMBODIMENT

Modular rechargeable device for refrigerators (Flgs. 1, 2, 3 and 4) that refers to the introduction of modifications that perfect two other similar devices conceived by the same inventor. The first, with application number P 201200879, published as ES 2454871 B1, with Concession Title dated 23.022015 and the second one which, with application number P 201S0G342, has not been published to date.

In the preferred embodiment presented herein, it comprises a refrigerant tank (1) consisting of an external housing (2) and an internal wall (2.1) between which there is a filling of insulating material (3) having d Said coolant tank (1) is a straight prismatic shape on whose upper face two special valves are installed, one of which is the refill valve (4) and the other is the gas outlet valve (5).

On one of the lateral faces of the refrigerant tank (1) it has at least four anchoring appendages (7) existing in the vicinity of each of them two permanent magnets (8) of such attractive power as can be neodymium .

In the interior of the refrigerant tank (ΐχ through the filling of insulating material, two, three or more collector resistors (6) are installed that protrude slightly from the outside in a truncated cone shape. The said refrigerant tank (1) is hermetic being able to alter said airtightness or by opening the refill valve (4) or by opening the gas outlet valve (5), and its functionality is to be coupled to a refrigerator (9) (Fig. 3) whose Inside is protected with relatively thick walls of front material (3) similar to the refrigerant tank (1).

In order to carry out said coupling as shown in (Fig. 3) the refrigerator (9) has as many holes as anchoring appendages (7) it has the refrigerant tank (1) being its situation such that a perfect coincidence of anchoring appendages (7) and holes of the refractor (9). The aforementioned coupling is secured in a very firm manner by means of neodymium magnets (8), the coolant tank (1) and the refrigerated tank (9) being closely connected, with the particularity that, in addition, the collection resistors (6) establish a perfect contact with the thermo-conductive connections (11) inserted in the corresponding wall of the refrigerator (9) which are extended perimetrically in the form of metal sheets (12) by the interior walls of the refrigerator (9) as it is schematized in the ( Figs. 3 and 4).

The assembly formed by the refrigerant tank (1) and the refrigerator (9) works in such a way that the cold that is generated in the refrigerant tank (1) is transmitted to the refrigerator enclosure (9) by thermal conduction in a This process begins by sublimation of the refrigerant introduced into the refrigerant tank (1) through the refill valve (4). The gas generated in the sublimation goes outside through the adjustable gas outlet valve (5), generating a very cold atmosphere inside the coolant tank (1) that lines the collection resistors (6) which they transmit the cold to the thermo-conductive connections (11) which, in turn, cool the metal sheets (12) producing the final cooling of the products contained in the refrigerator (9).

Since the temperature of carbonic snow is very low, since, as indicated by artcr «lies, it reaches -78.5 ° C, it is necessary to regulate the transfer of refrigerators from the refrigerant tank (1) to the refrigerator (9) since it is not important that the interior of the refrigerator is too cold. The aforementioned regulation can be done at the thermo-conductive connection points (11) when it is a refrigerator in full use or, it can be foreseen in the design of the refrigerator itself depending on the use that will be given. Thus, in a beach fridge or in beverage or bottle coolers where the temperature should be close to about 4 "C, few metal sheets (12) will be installed, but if you think about an ice cream cart where the internal temperature should Around - 4 ° C, then the transmission of ingestions should be increased by installing more metal sheets (12).

In summary, the invention has many possibilities using the same principle of operation and dimensioning of the refrigerator in a manner consistent with the use that will be given.

The great advantage of the proposed invention is that it is an autonomous refrigeration device that does not require to be connected to the network during the period of use and is also portable, so that, in the case of the refrigerator represented in the drawings of This document can be easily transported for what has a handle (10) being able to dispose of its contents by opening the door (13) equipped with the handle (14) although, optionally, the front door (13) could be replaced by an upper cover knocked down or by a pink cover always taking care of ciisefiar a good closing system to avoid losses.

When the modular assembly has been used for one or two days, the cooling tank (1) is disconnected by taking it in isolation to the charging point without the need to move the refrigerator (9).

As an additional advantage we can even mention that of water saving since, as has been exposed, the modular device of the invention does not require ice.

It is not considered necessary to make the content of this description more extensive so that a person skilled in the art can understand its scope and the advantages derived from the invention, as well as develop and put into practice the object thereof.

However, it should be understood that the invention has been described according to a preferred embodiment thereof, so it may be susceptible to modifications, such modifications may affect the shape, size and / or the manufacturing materials without affecting or implying any alteration of the Italamente of said invention. That is to say, the terms in which this preferred description of the invention has been exposed should always be taken in a broad and non-limiting manner.

Claims

1. - Rechargeable modular device paca refrigerators that refers to a portable refrigerator with sufficient autonomy to be effective for about 48 hours characterized by consisting of two independent bodies materialized in a refrigerant tank (1) and a refrigerator (9) being constituted the coolant tank (1), which has a prismatic shape of a substantially rectangular base, by an external housing (2) and an internal wall (2.1) between which there is a filling of insulating material (3), provided, on its upper face, of a refill valve (4) and a gas outlet valve (5) and on one of its side faces of at least four anchoring appendages (7) and of as many magnets (8), permanent, preferably of neodymium, having in its inner part, crossing the layer of insulating material (3), two, three or more pickup resistors (6) that protrude slightly outward in a conical trunk. As for the refrigerator (9), it is a straight prismatic container with a rectangular base, although it can be of any other shape, one of whose lateral faces is provided with holes that are perfectly facing the anchoring appendages (7), the pick-up resistors also coincide (6) with as many thermo-conductive connections (II) inserted in d insulating material (3) of the refrigerator (9) with continuity towards its inner walls in the form of metal sheets (12) that run said walls perimetrically.

2. - Rechargeable modular device for refrigerators, according to claim one, characterized in that the coolant tank (1) and the refrigerator (9) are independent but can be coupled together.

3. - Rechargeable modular device for refrigerators, according to previous claims, characterized in that the number of metal sheets (12) is variable depending on the type of refrigerator.

4. - Rechargeable modular device for refrigerators, according to previous indications, characterized in that the refrigerator (9) preferably has a front opening tip that replaces, optionally, orally, with a collapsible upper one or a threaded cover in the front or upper position.

S.- Rechargeable modular device for refrigerators, according to previous claims, characterized in that the refrigerant tank (1) is rechargeable and the refrigerant tank assembly (1) and refrigerator (9), is portable and autonomous during the periods of use.

6.- Refillable modular slide for refrigerators, according to previous claims, characterized in that the refill valves (4) and gas outlet (S) are grouped into a single double hobby.