KR19990034120A - Refrigerator - Google Patents

Abstract

The present invention relates to a refrigerator having an evaporator and a blower fan for discharging cold air from the evaporator into a cooling chamber, wherein at least one of an inlet pipe through which a refrigerant flows into the evaporator and an outlet pipe through which the refrigerant flows out are cooled. It is characterized in that it is installed to pass through a partial region of the seal. As a result, a refrigerator is provided which promotes vaporization of the refrigerant by the outflow pipe passing through the ice chamber to improve the refrigerating performance of the ice chamber and improves the overall cooling efficiency.

Description

Refrigerator

The present invention relates to a refrigerator, and more particularly, to a refrigerator which improves the overall cooling efficiency and maintains the temperature of the ice-cold chamber formed in the refrigerating chamber at an appropriate temperature.

As shown in FIG. 1, the refrigerator includes a main body 1 which forms the freezer compartment 3 and the refrigerating compartment 2, respectively, and a freezer compartment door that rotates the openings formed in the front surface of the main body 1, respectively. (5) and the refrigerating chamber door (4). In the freezer compartment 3 and the refrigerating compartment 2, a plurality of storage shelves 9 are provided for storing food, and in particular, the refrigerating compartment 2 has an ice cube chamber 11 and a vegetable compartment 12 at an upper portion and a lower portion thereof. It is formed to accommodate the food according to the proper storage temperature of the food.

At the lower end of the rear side of the refrigerator compartment 2 of the refrigerator, as shown in FIG. 3, a compressor 6 for compressing the refrigerant is provided, and in the rear walls and both side walls of the freezer compartment 3 and the refrigerator compartment 2. The condenser 8 which is arranged in a zigzag manner is provided to enlarge the heat transfer area.

On the other hand, the refrigerator compartment evaporator 7b and the freezer compartment evaporator 7a formed by attaching a plurality of plate-shaped heat transfer fins to the heat transfer tube through which the refrigerant can flow are installed at the rear of the freezer compartment 3 and the refrigerator compartment 2, respectively. One side of the 7) is provided with an accumulator 16 to allow the refrigerant in the gas state to be sucked into the compressor (6). In addition, the condenser 8 and the refrigerating chamber evaporator 7b are connected to a capillary tube 14 forming a fine flow path, and the refrigerant passing through the condenser 8 is decompressed while passing through the capillary tube 14 and the refrigerating chamber evaporator 7b. Will flow into. On the other hand, in the rear walls of the freezing chamber 3 and the refrigerating chamber 2, a duct 6, which is an air flow path, is formed so that the air cooled from the evaporator 7 can flow. The refrigerator compartment blowing fan 20b and the refrigerator compartment blowing fan 20a which blow air into the refrigerator compartment 2 and the freezing compartment 3 are provided.

By this configuration, the gaseous refrigerant of the high temperature and high pressure compressed by the compressor 6 is radiated and condensed while flowing through the condenser 8, and expands under reduced pressure while flowing through the fine flow path of the capillary tube 14. The expanded refrigerant flows into the refrigerator compartment evaporator 7b to evaporate and is heat-exchanged with the air in the refrigerator compartment 2 by the refrigerator compartment blowing fan 20b. The refrigerant evaporated as described above is introduced into the freezing chamber evaporator 7a to evaporate to generate cold air, and the generated cold air is discharged into the freezing chamber by the freezing chamber blowing fan 20a. Here, some of the heat exchanged refrigerant is present in the liquid state, the liquid refrigerant is vaporized by passing through the accumulator 16 and sucked into the compressor (6), the gas refrigerant is sucked into the compressor (6) Will be.

However, in the conventional refrigerator, during the circulation of the refrigerant, the refrigerant expanded under reduced pressure in the capillary evaporates through the refrigerator compartment evaporator 7b and the freezer compartment evaporator 7a. ) Is not evaporated sufficiently, so extra heat of evaporation is generated. Therefore, it is desirable to improve the cooling efficiency of the refrigerator by using this extra evaporation heat efficiently.

On the other hand, in the ice compartment 11, which is partitioned at the upper part of the refrigerating compartment 2 and prepared to keep foods requiring freshness such as fish or meat in a ready-to-cook state, the refrigerating compartment blowing fan 20b is connected to the ice compartment 11 Although installed adjacently and maintained at a predetermined temperature lower than other regions in the cooling chamber, there is a problem that it is difficult to maintain a sufficiently low temperature only by the location of the refrigerating chamber blowing fan 20b.

Accordingly, an object of the present invention is to provide a refrigerator capable of sufficiently vaporizing a refrigerant to improve cooling efficiency and maintaining the temperature of the ice-cold chamber at an appropriate temperature.

1 is a side cross-sectional view of a refrigerator,

2 is a configuration diagram of a refrigeration cycle of a refrigerator according to the present invention;

3 is a configuration diagram of a refrigeration cycle of a conventional refrigerator.

<Description of Symbols for Main Parts of Drawings>

1: body 2: refrigerating chamber

3: freezer 6: compressor

7: evaporator 8: condenser

11: ice room 20: blowing fan

30: outflow pipe 40: ice room evaporator

The object of the present invention is a refrigerator having an evaporator and a blower fan for discharging cold air from the evaporator into a cooling chamber, wherein at least one of an inlet pipe through which the refrigerant flows into the evaporator and an outlet pipe through which the refrigerant flows out are provided. One is achieved by the refrigerator, characterized in that installed so as to pass through a partial region of the cooling chamber.

Here, the outlet pipe is preferably installed so as to pass through the partial region of the cooling chamber, the outlet pipe is partitioned on one side of the cooling chamber to form a space for maintaining a predetermined low temperature is installed so that the outlet pipe passes through. desirable.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 and 2, the refrigerator rotates the main body 1, which forms the freezing chamber 3 and the refrigerating chamber 2, and the openings formed in the front surface of the main body 1, respectively. It has a freezer compartment door 5 and a refrigerating compartment door 4. In the freezer compartment 3 and the refrigerating compartment 2, a plurality of storage shelves 9 are provided for storing food, and in particular, the refrigerating compartment 2 has an ice chamber 11 and a vegetable compartment 12 at an upper portion and a lower portion thereof. ) Is formed to accommodate food according to the proper storage temperature of the food. Here, the ice room 11 is stored at about -14 ° C which is the most suitable temperature for cooking food such as meat.

A compressor 6 for compressing a refrigerant is installed at the lower rear end of the refrigerating compartment 2 of the refrigerator, and in the rear wall and both walls of the freezing compartment 3 and the refrigerating compartment 2, the zigzag is enlarged to increase the heat transfer area. The condenser 8 arrange | positioned is provided. In addition, a freezer compartment evaporator 7a and a refrigerator compartment evaporator 7b formed at the rear of the freezing chamber 3 and the refrigerating chamber 2 by attaching a plurality of plate-shaped heat transfer fins to a heat transfer tube through which a refrigerant can flow are installed. One side of the 7) is provided with an accumulator 16 to allow the refrigerant in the gas state to be sucked into the compressor (6). The condenser 8 and the refrigerating chamber evaporator 7b are connected to a capillary tube 14 forming a fine flow path, and the refrigerant passing through the condenser 8 is decompressed to pass through the capillary tube 14 to the refrigerating chamber evaporator 7b. It will flow in. On the other hand, in the rear walls of the freezing chamber 3 and the refrigerating chamber 2, a duct 15, which is an air flow path, is formed so that the air cooled from the evaporator 7 flows. The refrigerator compartment blowing fan 20b and the refrigerator compartment blowing fan 20a which blow air into the refrigerator compartment 2 and the freezing compartment 3 are provided.

Here, the refrigerator compartment evaporator 7b and the freezer compartment evaporator 7a are connected by an outlet pipe 30 which guides the refrigerant from the refrigerator compartment evaporator 7b to the freezer compartment evaporator 7a. The outflow pipe 30 extends from the refrigerator compartment evaporator 7b to form an ice chamber evaporator 40. The outlet pipe 30 is first bent from the refrigerator compartment evaporator 7b toward the ice chamber 11. Then, it extends to the upper portion of the ice chamber 11, and is then bent in a zigzag several times in the upper portion of the ice chamber 11 to form the ice chamber evaporator (40).

In the refrigerator having such a configuration, when the power is applied and the compressor 6 compresses the refrigerant to high temperature and high pressure, the compressed refrigerant is condensed through the condenser 8 formed over the entire area of the refrigerator. The condensed refrigerant passes through the capillary tube 14, expands under reduced pressure, enters the refrigerator compartment evaporator 7b, evaporates from the refrigerator compartment evaporator 7b, and exchanges heat with air in the refrigerator compartment 2 to lower the temperature of the refrigerator compartment 2. . Then, the refrigerant flows through the outlet pipe 30 to the freezer compartment evaporator 7a, and passes through the ice chamber evaporator 40 disposed in the ice chamber 11 while flowing toward the freezer compartment evaporator. At this time, the refrigerant is evaporated while passing through the ice chamber evaporator 40 to exchange heat with the air in the ice chamber 11, so that the air in the ice chamber 11 is cooled more than other regions in the refrigerating chamber 2. Will be done. Then, the refrigerant heat exchanged in the ice chamber evaporator 40 flows into the freezer compartment evaporator 7a, and heat exchanges with the air in the freezer compartment 3 to vaporize most of the refrigerant to increase the temperature. The refrigerant whose temperature has risen passes through the accumulator 16 and enters the compressor 6 and is compressed again at high temperature and high pressure.

Accordingly, by forming the ice-chamber evaporator 40 in the ice-chamber 11 using the outflow pipe 30, the refrigerant evaporates while passing through the outflow pipe 30 and the ice-chamber evaporator 40 to ice-chamber 11 By appropriately lowering the temperature of the), the refrigerating performance of the ice-cooling chamber 11 can be improved. In addition, it is possible to promote the vaporization of the refrigerant passing through the ice chamber evaporator 40 to improve the overall cooling efficiency.

In the above-described embodiment, the temperature of the ice-cooling chamber 11 is lowered by using the outlet pipe 30 connecting the refrigerator compartment evaporator 7b and the freezer compartment evaporator 7a. However, the refrigerator compartment evaporator 7b is moved from the condenser 8. The same effect can be obtained by using the inlet pipe connecting. In addition, the ice chamber evaporator 40 may be formed in the same shape as a conventional evaporator by not only bending the outlet pipe but also arranging a heat fin in the outlet pipe.

As described above, according to the present invention, there is provided a refrigerator that promotes vaporization of a refrigerant by an outlet pipe passing through an ice cube chamber, thereby improving the refrigerating performance of the ice cube chamber, and improving the overall cooling efficiency.

Claims (3)

A refrigerator having an evaporator and a blowing fan for discharging cold air from the evaporator into a cooling chamber, And at least one of an inflow pipe through which the refrigerant flows into the evaporator and an outflow pipe through which the refrigerant flows out pass through a partial region of the cooling chamber. The method of claim 1, And the outlet pipe passes through a portion of the cooling chamber. The method of claim 2, The refrigerator characterized in that the outlet pipe is partitioned on one side of the cooling chamber to form a space for maintaining a predetermined low temperature passing through the outlet pipe.