KR100451710B1 - Refrigerator with cold regenerative room - Google Patents

Abstract

PURPOSE: A refrigerator is provided to maintain constant temperature of food for a long time regardless of external factor by forming the cold storage chamber in the refrigerator compartment, and to keep moisture of food by cooling food with conduction and convection in the cold storage chamber. CONSTITUTION: A refrigerator is composed of a cold storage chamber case(8) communicated with a multi-duct(7) flowing cold air from a freezer compartment(6) and composed of an internal space, a door(8a) installed in the front of the cold storage chamber case, a cold storage agent enclosure(9) spaced from the inner wall of the cold storage chamber case, and a cold storage agent(10) injected into the cold storage agent enclosure. Food is stored in the refrigerator, and cooled with conduction and natural convection by a cold storage unit installed at the side of a refrigerator compartment(5).

Description

Refrigerator with cold storage room {Refrigerator with cold regenerative room}

The present invention relates to a refrigerator having a cold storage chamber, and more particularly, to maintain a constant temperature for a long time regardless of external factors, and to moisturize.

In general, the cooling method of the refrigerator is divided into direct cooling and intercooling. The intercooling is a method of cooling food by forced convection through air, and the direct cooling is a direct contact between the evaporator 4 and the food to conduction and natural convection. By cooling the food.

1 is a refrigerating cycle of an intercooled refrigerator, and FIG. 2 is a longitudinal sectional view of an intercooled refrigerator using the same. The compressor 1 serves to compress a low and low pressure gas refrigerant into a high and high pressure gas refrigerant. A condenser (2) for condensing the high-pressure gas refrigerant into a high-temperature / high-pressure liquid refrigerant, an expansion valve (3) for expanding the high-temperature / high pressure liquid refrigerant to a low-temperature / low pressure liquid refrigerant, It consists of the evaporator 4 which functions to evaporate the said low temperature and low pressure liquid refrigerant with the low temperature and low pressure gas refrigerant, and keeps the temperature of the freezing chamber 6 and the refrigerating chamber 5 constant.

On the other hand, the cold air circulation process to the freezing chamber 6 and the refrigerating chamber 5 in the intercooling refrigerator having such a refrigeration cycle will be described as follows.

First, as the air passing around the evaporator 4 installed at the rear of the freezing chamber 6 is cooled through heat exchange with the evaporator 4, a part of the cold air is blown through the grill fan 12 by the blowing action of the fan 11. The freezer compartment 6 is supplied to cool the inside of the freezer compartment 6.

In addition, a part of the cold air flows into the multi duct 7 connected to the refrigerating chamber 5 through the damper 14, and then is supplied to the refrigerating chamber 5 through the cold air outlet 5a for the refrigerating chamber, and thus inside the refrigerating chamber 5. Cooled.

As described above, the cold air increases in temperature as it is supplied to the freezing chamber 6 and the refrigerating chamber 5 to cool the temperatures in the freezing chamber 6 and the refrigerating chamber 5 to a predetermined temperature, respectively.

At this time, the cold air is introduced again into the evaporator 4 of the freezing chamber 6 along a separate duct, and then cooled again and recirculated through heat exchange with the evaporator 4.

However, in the case of the refrigerator employing the intercooled cooling method, moisture of food is easily deprived by the circulating air, and the cooling speed is slow.

On the other hand, the direct cooling is a fast cooling rate because the food and the evaporator (4) is in direct contact, and is not cooled by forced convection, the moisturizing effect on the food is great while the food idea on the surface of the evaporator (4) becomes a problem Nowadays it is not used except a part of small refrigerator.

The present invention is to solve the above-mentioned problems, so that a separate storage cold storage chamber is provided in the refrigerating chamber of the intercooled refrigerator so that the temperature of the food is maintained at a constant temperature for a long time irrespective of external factors, and the moisturizing action of the food It is an object of the present invention to provide a refrigerator having a cold storage chamber.

1 is a block diagram showing a typical refrigerator refrigeration cycle

Figure 2 is a longitudinal cross-sectional view showing a conventional refrigerator.

3 is a longitudinal sectional view showing the refrigerator of the present invention;

Explanation of symbols for main parts of the drawings

5: refrigerator compartment 6: freezer compartment

7: Multi-duct 8: cold storage case

9: Refrigerant enclosure 10: Refrigerant

In order to achieve the above object, the present invention is installed to communicate with the multi-duct which is a cold air inflow path from the freezer compartment, the storage compartment having a space therein, the door installed on the front of the storage compartment case, the storage compartment case There is provided a refrigerator in which a refrigerating means composed of a refrigerating coolant enclosure installed at a predetermined distance from an inner wall surface and a refrigerating coolant injected into the refrigerating coolant enclosure is provided at one side of the refrigerating compartment.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 is a longitudinal sectional view of the refrigerator of the present invention, in the refrigerator having a refrigeration cycle composed of the compressor 1, the condenser 2, the expansion valve 3, and the evaporator 4, on one side of the refrigerating chamber 5; An accumulating means for cooling the food stored therein by conduction and natural convection is provided.

At this time, the cold storage means is installed to communicate with the multi-duct (7) which is a cold air inflow path from the freezing chamber (6) on one side of the refrigerator compartment (5) and the storage compartment, and the storage compartment A door 8a installed at the front of the case 8, a coolant enclosure 9 installed at a predetermined distance from an inner wall surface of the cold storage case 8, and the coolant enclosure 9 ) Consists of a coolant 10 injected into the interior.

At this time, the coolant enclosure 9 is better to be thinner in terms of heat conduction, and as the coolant 10, it is preferable to use a substance which is frozen at 0 ° C or lower, such as water or brine.

Referring to the operation of the refrigerator according to the present invention configured as described above is as follows.

First, the air passing around the evaporator 4 installed at the rear of the freezer compartment 6 is cooled through heat exchange with the evaporator 4.

Thereafter, some of the cold air is supplied to the freezer compartment 6 through the cold air outlet 12a of the grill pan 12 according to the blowing action of the fan 11 installed behind the evaporator 4 to cool the inside of the freezer compartment 6. Part of the remaining cold air is introduced into the multi duct 7 through the cold air outlet formed between the shroud 13 and the grill pan 12 to cool the refrigerating compartment 5.

At this time, in the present invention, the cold storage chamber is installed in the upper part of the refrigerating chamber 5, and a part of the cold air introduced into the multi duct 7 is a flow path between the cold storage chamber case 8 and the coolant enclosure 9 ( 8b) flows into the lower space of the refrigerating compartment 5, and the rest flows into the refrigerating compartment 5 through the cold air outlet 5a for the refrigerating compartment through the damper 14 installed on the multi duct 7. 5) It will flow inside.

That is, the cold air is cooled by contacting the coolant 10 while performing heat exchange while passing through the flow path 8b formed between the coolant compartment case 8 and the coolant enclosure 9.

In this way, the coolant 10 is finally frozen by the cooling action according to the heat exchange, whereby the food stored in the coolant 10 is conducted by direct contact with the coolant enclosure 9 and the cool storage room. Cooled by the natural circulation of the internal air.

Thereafter, after the cooling action in the refrigerating chamber 5, the cold air whose temperature has risen is introduced into the evaporator 4 of the freezing chamber 6 again along a separate duct, and then cooled again through heat exchange with the evaporator 4 Recycle.

In the above, since the latent heat storage agent 10 maintains the same temperature continuously without having to cool for a long time due to the latent heat, the shaft is not affected by internal / external changes such as repeated opening and closing of the cold storage door 8a or additional storage of food. The temperature in the cooling chamber can be maintained at a constant temperature for a long time.

In addition, since the cooling method by conduction and natural convection, the escape of moisture in the cold storage room is minimized to maintain the freshness of the food for a long time.

As described above, the present invention is to provide a separate storage cold storage chamber in the refrigerating chamber (5) of the intercooling refrigerator.

Accordingly, there is an effect that the temperature of the food is maintained at a constant temperature for a long time regardless of external factors.

In addition, since cooling is performed by conduction and natural convection in the refrigerating chamber of the present invention, the moisturizing effect on the food becomes effective, which is more advantageous for long-term storage of food.

Claims (2)

One side of the refrigerating chamber is provided with a storage means for cooling the food stored therein by conduction and natural convection, The cold storage means A cold storage case installed at one side of the refrigerating chamber so as to communicate with the multi duct and having a space therein; A door installed at the front side of the cold storage case; A coolant enclosure installed at a predetermined distance from the inner wall surface of the coolant compartment case; Refrigerator comprising: a coolant injected into the coolant enclosure. The method of claim 1, Refrigerator, characterized in that the coolant is water or salt water.

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