MX2011013907A

MX2011013907A - Express chill system.

Info

Publication number: MX2011013907A
Application number: MX2011013907A
Authority: MX
Inventors: Luis Francisco Castro Solis; Joel Gaona Roldan; Eunice Pondigo Vicente; Nancy Alvarez Mayer
Original assignee: Mabe Sa De Cv
Priority date: 2011-12-16
Filing date: 2011-12-16
Publication date: 2013-06-17
Also published as: BR102012022158A2; MX342964B

Abstract

Described is an express chill system for a household refrigerator, which comprises an express chill compartment located within the freezing chamber of the refrigerator and opened by the front portion thereof; an abatable access cap designed specially for closing, in a convenient manner, said front opened portion of the express chill compartment; said cap has a mechanism of the camshaft-follower type, which would be set in a closed position at the moment of performing the express chill operation in order to create a closed chamber within said compartment; the cap remains in an opened position when no express chill operation is performed, so that the cap being adjacent and parallel to the upper wall of the freezing chamber; a control panel or user interface is arrange at the outer portion of the refrigerator; where the system performs the express chill operation by means of an operation method that includes the following steps: selecting the express chill function from the control panel as well as the interval of time desired to maintain active said function; verifying that no other additional special function of the refrigerator is active; checking if the compressor is turned on or off once the function of express chill is activated; activating an acoustic and/or visual alarm once the selected interval of time has passed and allowing the refrigerator to return to its normal operation in accordance with the temperature of the cut of the normal operation cycle; verifying that the temperature in the inner portion of the refrigerator is under the temperature of the cut of the normal operation cycle; turning the compressor and the fan off.

Description

RAPID COOLING SYSTEM (EXPRESS CHILL) Field of Invention The present invention relates to a system for rapid cooling of products inside a domestic refrigerator. Specifically, said system comprises a compartment with a pivotable access cover inside the freezer chamber of the refrigerator and a particular operation method of the refrigerator selectable by the user from a control panel or interface.

Description of the Prior Art.

Usually conventional domestic refrigerators have a main body that includes a freezing chamber and a cooling chamber separated from each other by a barrier commonly known in the field as mullion. Inside the two chambers are several panels and containers to place the food to cool or freeze, as the case may be.

Said chambers are cooled to different temperatures by regulating the amount of cooling air supplied to them from an evaporator through which a cooling fluid flows from a compressor. To achieve the above, said refrigerator normally has a cooling air flow system consisting mainly of an evaporator, an evaporator chamber, a fan and various ducts for the distribution and return of air inside the chambers both freezing and of refrigeration. In general, said fan drives cold air coming from the evaporator chamber partly into the freezing chamber and partly into the cooling chamber, through different ducts and orifices, and therefore minus an air flow regulator. Once the cooling air circulates inside the chambers extracting the heat of the products arranged inside them, said air (already hot) is directed through holes and return ducts back to the evaporator chamber to be cooled again by the evaporator and be driven again by the fan into the interior of the chambers.

According to the above, in common domestic refrigerators when entering a new product to be cooled, it is necessary to wait a considerable time until said product reaches the desired temperature inside the refrigerator, since the process is carried out gradually according to the normal operation of said refrigerator.

Recently some systems of rapid cooling have been developed inside the domestic refrigerators, nevertheless, a complete system has not been contemplated in them that not only involves some special compartment, but also it is complemented with a method of simple and efficient operation of the refrigerator, which can be easily activated by the user from an external control panel.

For example, in USPatent 3,659,429 to McLean, a rapid cooling compartment disposed within the refrigeration chamber of a domestic refrigerator is disclosed. Said compartment has a retractable auxiliary door that closes to said compartment to carry out the operation of rapid cooling. An auxiliary fan, which is energized independently of the main fan of the refligerator, is disposed within said cooling compartment, near the cold air inlet zone of the cooling chamber; so that when said rapid cooling operation is activated, said fan is energized during a time interval selected by the user, which is controlled by a timer. Due to the above, this rapid cooling system of the state of the art depends solely on the operation of said additional fan to push more air into the compartment, without involving or altering in any way the normal operation of the refrigerator (compressor- and main fan ); therefore, it is not possible to ensure a really rapid cooling of the products which is efficient and constant while carrying out said operation, besides that by the arrangement of said compartment inside the cooling chamber, the temperature within the it never becomes greater or at least equal to the temperature of the freezing chamber.

Also, some other documents. of the state of the art disclose similar cooling systems, however in some cases they require additional adjustments in their air flow system that result in considerable increases in manufacturing cost, and in others the method of operation of the system results in a series of stages and / or quite complicated algorithms to carry out.

Therefore, according to the above, there is a need to have a rapid cooling system for a domestic refrigerator, which is economical, easy to build, efficient, and above all that has a simple and easy operating method. that involves the control of all the functions of the. effrigerator to achieve real rapid cooling.

Brief description of the invention.

The main object of the present invention is to provide a rapid cooling system for products inside a domestic refrigerator. Specifically said system comprises a compartment with a hinged access cover inside the freezer chamber of the refrigerator and a particular operating method of the refrigerator selectable by the user from a control panel or interface.

The rapid cooling system of the present invention is designed to be installed in a domestic refrigerator of the type comprising a main body including a freezing chamber and a fresh food cooling chamber separated from each other by a barrier commonly known as mullion, and where each chamber has an independent hinged access door. Also, each of said chambers has different panels and / or containers distributed inside them to place the food to be cooled or frozen as the case may be. A system for distributing cooling air from an evaporator is responsible for supplying by means of discharge ports and in a regulated manner the flow corresponding to each of said chambers of the refrigerator, according to the desired temperature inside them. .

Specifically, said rapid cooling compartment is located within the freezer chamber of the refrigerator and is preferably formed by the side, upper and rear walls of the same chamber, in addition to a shelf panel arranged as the bottom wall of said chamber. compartment, being open on the front. A hinged access cover is specially arranged to conveniently close said open front part of the rapid cooling compartment. Said lid can be placed in its open or closed position by means of a cam-follower mechanism which allows, when the rapid cooling operation is to be carried out, it is placed in its closed position creating a closed chamber inside of said compartment; and when said operation is not going to be carried out, said lid is placed in its open position remaining adjacent and parallel to the upper wall of the freezing chamber, thus offering the possibility of occupying normally the total space of said chamber.

In this way, the products that are desired to cool quickly through the system of the present invention must be placed inside the compartment intended for this purpose, subsequently moving said hinged access cover to its closed position, thus helping to maintain a greater quantity of air cooled inside said compartment during a desired time interval.

On the other hand, the method of particular operation of the refrigerator for carrying out the rapid cooling function of the present invention begins with the selection of said function by the user from a control panel or interface preferably arranged on the outside of the refrigerator and more preferably in one of the doors thereof. Said control panel allows the activation and / or deactivation of the different functions of the refrigerator, including the said function of rapid cooling, and also allows selecting the time interval that it is desired to keep said function active.

Once the fast cooling function has been selected and the time interval that you want to keep this function active from the control panel, it sends a signal to an electronic processing and control module which is responsible for controlling and adapting all the functions of the refrigerator based on what is required by the user. It should be clarified that yes. some other additional special function of the refrigerator is active, said rapid cooling function can not be activated and an acoustic and / or visual signal will be sent to the user; therefore, the user must first deactivate any additional function in order to subsequently be able to select the desired rapid cooling function. In the same way, no other special function can be selected until the quick cooling function is deactivated.

Once the rapid cooling function has been activated, the electronic control checks whether the compressor is on or off. If the compressor is off, it is also checked if at least 8 minutes have elapsed since it left its last work cycle, and if so, both the compressor and the fan are turned on during the previously selected time interval until it is completed.; and if it has not been at least 8 minutes since you left your last work cycle, the selected time interval begins to decrease but you wait until the 8 minutes have passed since you left your last cycle Work to achieve pressure leveling before turning on both the compressor and the fan for the remaining time of the selected interval until complete. However, in case the compressor is on, it continues to work normally until it reaches the cut-off temperature of the normal operating cycle of the refrigerator and the selected time interval begins to decrease; once this cut-off temperature is reached, it is checked whether the rapid cooling function is still active, and if so, the compressor continues to work the remaining time of the selected interval until it is completed; and in case the rapid cooling function is not active, the compressor is switched off.

Once the time interval selected in the rapid cooling function has elapsed, an acoustic and / or visual alarm is activated and the refrigerator returns to normal operation according to the cut-off temperature of the normal operating cycle, which is why it is checked if the temperature inside the refrigerator is below the cut-off temperature of the normal operating cycle, and if so, both the compressor and the fan turn off; and in case the temperature inside the refrigerator is above the cut-off temperature of the normal operating cycle, both the compressor and the fan continue to work until reaching the cut-off temperature of the normal operating cycle.

In addition to the above, once the rapid cooling function has been activated, it is also checked if the refrigerator is performing a defrost cycle, and if so, it continues normally with the defrosting cycle without interrupting it and once it ends with the a 10 minute wait or dwell time is taken to check later whether the rapid cooling function is still active; if so, the compressor is turned on and works for the remaining time of the selected interval until it is completed, if not, the refrigerator returns to its normal operating cycle. The above serves to avoid freezing problems in draining the refrigerator's de-icing system. However, in case the refrigerator is not performing a defrost cycle, the normal cooling process is continued.

On the other hand, in case the refrigerator requires a defrost cycle while the rapid cooling function is active, said defrost cycle will be postponed until said rapid cooling function is completed.

These and other objects and advantages of the present invention will become apparent when reference is made to the description taken in conjunction with the following figures.

Brief Description of the Figures.

The particular features and advantages of the invention, as well as other objects of the invention, will be apparent from the following description, taken in conjunction with the accompanying figures, in which: Figure 1 is a conventional perspective view of a domestic refrigerator that features the rapid cooling system of the present invention.

Figure 2 is a front view of the domestic refrigerator of Figure 1.

Figure 3 is a view of the domestic refrigerator of Figure 1 with the doors of the freezing and cooling chambers open, where the rapid cooling compartment can be seen inside said freezing chamber.

Figure 4 is an isolated cross-sectional view of the freezing chamber where the rapid cooling compartment is located.

Figures 5A to 5D show in detail different stages of the folding process of the folding access cover of the rapid cooling compartment.

Figure 6 is a flow diagram of the particular operation method of the refrigerator for performing the rapid cooling function.

Detailed description of the invention .

As has been described above, the main object of the present invention is to provide a system for rapid cooling of products inside a domestic refrigerator. Specifically said system comprises a rapid cooling compartment (10) with a hinged access cover (11) inside the freezer chamber (2) of the refrigerator (1) and a particular operation method of the refrigerator selectable by the user from a panel of control or interface.

Now, referring to the appended figures, and mainly to figures 1 to 3, the rapid cooling system of the present invention is designed to be installed in a domestic refrigerator (1) of the type comprising a main body that includes a freezing chamber (2) and a fresh food refrigeration chamber (3) separated from each other by a barrier commonly known as mullion (4), and wherein each chamber (2,3) has a respective independent hinged access door ( 5,6). Also, each of said chambers (2,3) has different panels and / or containers distributed inside them to place the food to be cooled or frozen as the case may be. A system for distributing cooling air from an evaporator is responsible for supplying by means of discharge ports and in a regulated manner the flow corresponding to each of said chambers of the refrigerator, according to the desired temperature inside them. .

Specifically, as seen in figures 4 a 5, said rapid cooling compartment (10) is located inside the freezing chamber (2) of the refrigerator (1) and is preferably formed by the side walls (12), upper (13) and rear (14) of the same chamber (2), in addition to a shelf panel (15) arranged as a bottom wall of said compartment (10), being open at its front. A hinged access cover (11) is specially arranged to conveniently close said open front part of the rapid cooling compartment (10). Said lid (11) can be placed in its open or closed position by means of a cam-follower mechanism which allows, when the quick cooling operation is to be carried out, it is placed in its closed position creating a closed chamber inside said compartment (10); Y. when said operation is not going to be carried out, said cover (11) is placed in its open position, being adjacent and parallel to the upper wall (13) of the freezing chamber (2), thus offering the possibility of occupying normally the total space of said chamber (2).

The hinged access cover (11) can be preferably made of some suitable polymeric material and more preferably of crystal polystyrene (PSC). Said cover (11) is formed mainly by a front wall (16) and side wall portions (17) formed perpendicularly one on each side of said front wall (16). A pair of bolts (18) are integrally molded, perpendicularly outwardly, from the outside of each of said side wall portions (17). Said bolts (18) form part of the cam-follower mechanism which allows the hinged lid (11) to be placed in the open or closed position, and function as the follower in said mechanism. In a complementary manner, a sliding type channel (19) is formed in each of the side walls (12) of the freezing chamber (2), and is specially designed to function as the cam of said mechanism. In this way, said cover (11) is coupled to the freezing chamber (2) by means of said bolts (18) that are slidably received inside the channels (19), so as to be able to carry out, in a convenient, the despondency of it. Preferably said sliding type channels (19) define an inverted "L" shaped path to thereby allow the lid (11) to be placed vertically in its closed and horizontal position in its open position. Also preferably, at least one ventilation opening (20) can be made in the front wall (16) of the hinged cover (11) to allow circulation of the cooling air.

At least one of the air discharge ports of the freezing chamber (2) is in direct communication with the rapid cooling compartment (10), so that by means of said at least one discharge port air is supplied of cooling coming from the evaporator directly into said compartment (10).

In this way, the products that are desired to cool rapidly through the system of the present invention must be placed inside the compartment (10) intended for this purpose, with said hinged access cover (11) finally moving to its closed position, thus helping to maintain a greater amount of cold air inside said compartment (10) during a desired time interval.

On the other hand, as can be seen in detail in the flow chart shown in FIG. 6, the particular operation method of the refrigerator for carrying out the rapid cooling function of the present invention begins with the selection of said function by part of the user from a control panel or interface (7) preferably arranged on the outside of the refrigerator (1) and more preferably in one of the doors (5,6) thereof. Said control panel (7) allows the activation and / or deactivation of the different functions of the refrigerator including the aforementioned rapid cooling function, and also allows to select the time interval that it is desired to keep said function active.

Once the fast cooling function has been selected and the time interval that it is desired to keep this function active from the control panel, it sends a signal to an electronic processing and control module which is responsible for controlling and adapting all the functions of the refrigerator based on what is required by the user. It should be noted that if any additional special function of the refrigerator is active, this rapid cooling function can not be activated and an acoustic and / or visual signal will be sent to the user; therefore, the user must first deactivate any additional function in order to subsequently be able to select the desired rapid cooling function. In the same way, no other special function can be selected until the quick cooling function is deactivated.

Once the rapid cooling function has been activated, the electronic control checks whether the compressor is on or off. If the compressor is off, it is also checked if at least 8 minutes have passed since it left its last work cycle, and if so, both the compressor and the fan are turned on during the previously selected time interval until it is completed.; and if it has not been at least 8 minutes since you left your last work cycle, the selected time interval begins to decrease but you wait until the 8 minutes have passed since you left your last cycle of work to achieve a leveling of pressures before turning on both the compressor and the fan during the remaining time of the selected interval to complete it. Now, in case the compressor is on, it continues working normally until reaching the cut-off temperature of the normal cycle of operation of the refrigerator and the selected time interval begins to decrease; once this cut-off temperature has been reached, it is checked whether the rapid cooling function is still active, and if so, the compressor continues working the time of the selected interval until it completes; and in case the rapid cooling function is not active, the compressor is switched off.

In addition to the above, once the rapid cooling function has been activated, it is also checked if the refrigerator is running a defrost cycle, and if so, it will continue normally with the defrosting cycle without interrupting it and once it has finished with it a dwell time of 10 minutes is taken to later check if the rapid cooling function is still active; if so, the compressor is turned on and works for the remaining time of the selected interval until it is completed, if not, the refrigerator returns to its normal operating cycle. The above serves to avoid freezing problems in draining the refrigerator's de-icing system. However, in case the refrigerator is not performing a defrost cycle, the normal cooling process is continued.

In a preferred embodiment of the invention, the options of predetermined time intervals that the user can select from the control panel for the activation of the rapid cooling function, can be 10 minutes, 15 minutes, 20 minutes, 30 minutes, 45 minutes and 60 minutes. These times are shown in the control panel by means of a display, which, when said rapid cooling function is active, also indicates the time remaining for the conclusion of the same.

It is important to note that, in addition, it is possible to deactivate the rapid cooling function by means of the control panel before it is completed, providing the possibility for the user to interrupt said function and return to the normal operating cycle when he chooses.

Alterations of the structure described herein may be foreseen by those with art in the matter. However, it should be understood that the present disclosure relates to the preferred embodiments of the invention, which is for illustrative purposes only, and should not be construed as a limitation of the invention. All modifications that do not depart from the spirit of the invention should be considered within the scope of the appended claims.

Claims

1. A rapid cooling system for a domestic refrigerator of the type comprising a freezing chamber and a cooling chamber divided by a mullion barrier, a compressor, a fan and means, for distributing cooling air from an evaporator by means of of download ports; said rapid cooling system comprises: a rapid cooling compartment that is located inside the freezer chamber of the refrigerator, open at the front; a hinged access cover specially designed to conveniently close said open front part of the rapid cooling compartment; said lid has a cam-follower mechanism which allows, when it is going to carry out the. rapid cooling operation, this is placed in its closed position creating a closed chamber inside said compartment; and when said operation is not going to be carried out, said lid is placed in its open position being adjacent and parallel to the upper wall of the freezing chamber; a control panel or user interface arranged on the outside of the refrigerator; wherein, the system performs the function of rapid cooling by means of an operation method that includes the steps of: select the rapid cooling function from said control panel as well as the time interval that it is desired to keep said function active; check that no other special additional function of the refrigerator is active; once the rapid cooling function has been activated, check whether the compressor is on or off; if the compressor is off check if at least 8 minutes have passed since it left its last work cycle, and if so, turn on both the compressor and the fan during the previously selected time interval until it completes; and in case it has not been at least 8 minutes since you left your last work cycle, begin to decrease the selected time interval and wait for the necessary time until those 8 minutes have elapsed since you left your last cycle of work to achieve a leveling of pressures before turning on both the compressor and the fan during the remaining time of the selected interval until completing it; in case the compressor is on, let it work normally until it reaches the cut-off temperature of the normal operating cycle of the refrigerator and begin to decrease the selected time interval; once this cut-off temperature has been reached, check whether the rapid cooling function is still active and, if so, allow the compressor to continue working the remaining time of the selected interval until it completes; and in case the rapid cooling function is not active, turn off the compressor; once the selected time interval has elapsed, activate an acoustic and / or visual alarm and allow the refrigerator to return to normal operation according to the cut-off temperature of the normal operating cycle; check if the temperature inside the refrigerator is below the cut-off temperature of the normal operating cycle, and if so, turn off both the compressor and the fan; and in case the temperature inside the refrigerator is above the cut-off temperature of the normal operating cycle, keep working both the compressor and the fan until reaching the cut-off temperature of the normal operating cycle.

2. The rapid cooling system according to claim 1, wherein: the system further comprises the step of checking whether the refrigerator is performing a defrosting cycle, and if so, it is normally continued with said defrosting cycle without interrupting it and once it ends with it, a 10 minute dwell or dwell time is taken to later check if the rapid cooling function is still active; if so, the compressor is turned on and works for the remaining time of the selected interval until it is completed, if not, the refrigerator returns to its normal operating cycle. The above serves to avoid freezing problems in draining the refrigerator's de-icing system.

3. The rapid cooling system according to claim 2, wherein: in case the refrigerator is not performing a de-icing cycle, the rapid cooling process is continued in a normal manner.

4. The rapid cooling system according to claim 1, wherein: it is possible to deactivate the rapid cooling function by means of the control panel before it is completed.

5. The rapid cooling system according to claim 1, wherein: the control panel includes a display to indicate the selected time interval and remaining time for the conclusion of the function.

6. The rapid cooling system according to claim 1, wherein: there are options of predetermined time intervals that the user can select from the control panel for the activation of the rapid cooling function, and said options are 10-minutes , 15 minutes, 20 minutes, 30 minutes, 45 minutes and 60 minutes.

7. The rapid cooling system according to claim 1, wherein: said rapid cooling compartment is formed by the lateral, upper and rear walls of the freezing chamber, in addition to a shelf panel arranged as the lower wall of said compartment.

8. The rapid cooling system according to claim 1, wherein: said collapsible lid is formed by a front wall and side wall portions formed perpendicularly one on each side of said front wall.

9. The rapid cooling system according to claim 8, wherein: a pair of bolts are integrally molded, perpendicularly outward, from the outside of each of said side wall portions.

10. The rapid cooling system according to claim 9, wherein: said bolts form part of the cam-follower mechanism which allows the hinged lid to be placed in the open or closed position, and functions as the follower in said mechanism.

11. The rapid cooling system according to claim 10, wherein: in a complementary manner, a sliding type channel is formed in each of the side walls of the freezing chamber, and is specially designed to function as the cam of said mechanism; - so that the hinged lid is coupled to the freezing chamber by means of said bolts that are slidably received inside the channels, so as to be able to carry out, conveniently, the folding of the same.

12. The rapid cooling system according to claim 11, wherein: said sliding type channels define an inverted "L" shaped path to thereby allow the collapsible lid to be placed vertically in its closed and horizontal position in its open position.

13. The rapid cooling system according to claim 1, wherein: at least one ventilation opening is made in the front wall of the hinged lid to allow air-cooling circulation.

1 . The rapid cooling system according to claim 1, wherein: at least one of the air discharge ports of the freezing chamber is in direct communication with the rapid cooling compartment, so that by means of said At least one discharge port is supplied with cooling air coming from the evaporator directly into said compartment.

15. The rapid cooling system according to claim 1, wherein: said hinged access cover is made of any suitable polymeric material.

16. The rapid cooling system according to claim 15, wherein: said polymeric material is treated with crystal polystyrene.

17. A method of operation of a rapid cooling system for a domestic refrigerator of the type comprising a freezing chamber and a cooling chamber divided by a mullion barrier, a compressor, a fan, means of distributing cooling air from an evaporator by means of discharge ports, a rapid cooling compartment open at the front which is located inside the freezer chamber of the refrigerator, a cover folding access specially designed to conveniently close said open front part of the rapid cooling compartment, a control panel or user interface arranged on the outside of the refrigerator; said method of operation comprising the steps of: select a quick cooling function from said control panel as well as the time interval that it is desired to keep said function active; check that no other special additional function of the refrigerator is active; once the rapid cooling function has been activated, check whether the compressor is on or off; if the compressor is off check if at least 8 minutes have passed since it left its last work cycle, and if so, turn on both the compressor and the fan during the previously selected time interval until it completes; and in case it has not been at least 8 minutes since you left your last work cycle, begin to decrease the selected time interval and wait the necessary time until those 8 minutes have passed since you left your last cycle of work. work to achieve a leveling of pressures before turning on both the compressor and the fan during the remaining time of the selected interval until completing it; in case the compressor is on, let it work normally until it reaches the cut-off temperature of the normal operating cycle of the refrigerator and begin to decrease the selected time interval; once this cut-off temperature has been reached, check whether the rapid cooling function is still active and, if so, allow the compressor to continue working the remaining time of the selected interval until it completes; and in case the rapid cooling function is not active, turn off the compressor; once the selected time interval has elapsed, activate an acoustic and / or visual alarm and allow the refrigerator to return to normal operation according to the cut-off temperature of the normal operating cycle; check if the temperature inside the refrigerator is below the cut-off temperature of the normal operating cycle, and if so, turn off both the compressor and the fan; and in case the temperature inside the refrigerator is above the cut-off temperature of the normal operating cycle, keep working both the compressor and the fan until reaching the cut-off temperature of the normal operating cycle.

18. The method of operation of a rapid cooling system according to claim 17, wherein: the method further comprises the step of checking whether the refrigerator is performing a defrosting cycle, and if so, it is normally continued with said cycle of defrosting without interrupting it and once it ends with the same it takes a dwell or dwelling time of 10 minutes to later check if the function of rapid cooling is still active; if so, the compressor is turned on and works for the remaining time of the selected interval until it is completed, if not, the refrigerator returns to its normal operating cycle. The above serves to avoid freezing problems in draining the refrigerator's de-icing system.

19. The method of operation of a rapid cooling system according to claim 18, wherein: in case the refrigerator is not performing a defrost cycle, the rapid cooling process is continued in a normal manner.

20. The method of operation of a rapid cooling system according to claim 17, wherein: it is possible to deactivate the rapid cooling function by means of the control panel before it is completed. SUMMARY A rapid cooling system for a domestic refrigerator comprising a rapid cooling compartment that is located inside the freezer chamber of the refrigerator, open at the front; a hinged access cover specially designed to conveniently close said open front part of the rapid cooling compartment; said cover has a cam-follower mechanism which allows, when the rapid cooling operation is to be carried out, it is placed in its closed position creating a closed chamber inside said compartment; and when said operation is not going to be carried out, said lid is placed in its open position being adjacent and parallel to the upper wall of the freezing chamber; a control panel or user interface arranged on the outside of the refrigerator; wherein, the system performs the function of rapid cooling by means of an operation method that includes the steps of: selecting the rapid cooling function from said control panel as well as the time interval that it is desired to keep said function active; check that no other special additional function of the refrigerator is active; once the rapid cooling function has been activated, check whether the compressor is on or off; once the selected time interval has elapsed, activate an acoustic and / or visual alarm and allow the refrigerator to return to normal operation according to the cut-off temperature of the normal operating cycle; check if the temperature inside the refrigerator is below the cut-off temperature of the normal operating cycle; turn off both the compressor and the fan.