KR100377614B1 - Refrigerator with efficient air circulation system - Google Patents

Abstract

The present invention relates to a refrigerator having improved cooling efficiency. The refrigerator according to the present invention includes a centrifugal blower fan (30), a refrigerant pipe (401), and a cooling fin (402) provided in the freezing chamber (101) to circulate cold air. It includes a bent evaporator 40 is bent in the same direction every predetermined section to surround the discharge side of the centrifugal blower fan (30).

Here, the centrifugal blowing fan 30 and the bent evaporator 40 are horizontally mounted below the freezing chamber 101.

According to the refrigerator according to the present invention, the cold air is efficiently circulated, and because the volume utilization of the freezer is increased due to the structure and location of the evaporator and the blower fan, more food can be stored and freshness of the stored food can be increased. There is an advantage.

Description

Refrigerator with improved air circulation efficiency {Refrigerator with efficient air circulation system}

The present invention relates to a refrigerator, and more particularly, to a refrigerator having improved cooling efficiency.

In general, a refrigerator is used to freeze or store food or the like, and as illustrated in FIG. 1, a case 10 and a case 10 forming a storage space separated into a freezer compartment and a refrigerating compartment, as shown in FIG. 1. A freezing chamber 101 and a refrigerating chamber are formed on one side by forming a refrigerating cycle such as a top and bottom door 12 that opens and closes the freezer compartment 101 and the refrigerating compartment 102, and the compressor 14, the condenser 16, and the evaporator 18. And devices for lowering the temperature of 102.

Here, the evaporator 18 is a heat transfer of the refrigerant pipe 181 and the defrost pipe 182 and the refrigerant pipe 181 for removing the frost formed in the refrigerant pipe 181, the refrigerant flows as shown in FIG. It is composed of a cooling fin 183 for widening the area.

The refrigerant pipe 181 is continuously bent in the opposite direction ('?? 'It is a kind of multi-ply structure forming a shape, and the cooling fins 183 are mounted in a form of a thin panel that crosses the seemingly bent refrigerant pipe 181 with a plurality of parallel arrangements at regular intervals.

The defrost pipe 182 is bent along the coolant pipe 181 in contact with the cooling fin 183 and has a structure in which a heating element such as a heating wire is provided therein.

The evaporator 18 is vertically mounted in a so-called evaporator chamber 103 separated from the freezing chamber 101 at the rear of the freezing chamber 101, and the freezing chamber 101 and the evaporator chamber 103 at the rear of the freezing chamber 101. An air vent 10a is formed to communicate with each other.

The evaporator chamber 103 is also equipped with an axial blower fan 20 for circulating the cold air formed by the evaporator 18, which is usually located above the evaporator 18.

In such a refrigerator, the low-temperature low-pressure gaseous refrigerant is compressed to high temperature and high pressure by the compressor 14, and the compressed high-temperature high-pressure gas phase refrigerant is cooled and condensed in the course of passing through the condenser 16 to be converted into a high-pressure liquid phase. The refrigerant in the state passes through a capillary tube (not shown), and its temperature and pressure are lowered. Then, the refrigerant is changed into a gaseous state of low temperature and low pressure in the evaporator 18 to take heat from the surroundings to cool the air around it. The air cooled through the evaporator 18 is circulated in the freezing and refrigerating chambers 101 and 102 by the operation of the blower fan 20, thereby lowering the temperature of the freezing chamber 101 and the refrigerating chamber 102.

On the other hand, the air discharged from the evaporator chamber 103 and circulated through the freezer compartment 101 and the refrigerating compartment 103 during the operation of the conventional refrigerator contains a lot of moisture evaporated from the stored food, so-called wet air with high humidity. Since the blower fan 20 is located above the evaporator 18, the humid air introduced into the evaporator chamber 103 after passing through the freezer compartment 101 and the refrigerating chamber 102 moves the evaporator 18 from the bottom to the top. Will pass.

Therefore, due to the shape and installation structure of the evaporator 18 having a small cross-sectional area (suction area) in a direction perpendicular to the air flow direction, a large amount of frost is formed at the bottom of the evaporator 18 which is in contact with the wet air by the formation of frost. As the flow path is reduced, the flow resistance becomes large. In order to prevent this, the evaporator 18 applied to the conventional refrigerator has a so-called non-uniform pitch type in which a cooling fin 183 at the bottom is wider than the top.

In addition, according to the related art, since the evaporator chamber 103 in which the evaporator 18 is installed is provided in the freezing chamber 101, the volume utilization of the freezing chamber 101 is also lowered.

Therefore, according to the conventional refrigerator as described above, there is a problem in that a large amount of food cannot be stored and the freshness of the stored food cannot be maintained high.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a refrigerator having a centrifugal blowing fan and a bending type evaporator wrapped around the blowing fan to improve cooling efficiency and volume utilization.

1 is a cross-sectional view showing a structure and a cold air circulation state of a conventional refrigerator.

2 is a plan view showing the structure of an evaporator applied to a conventional refrigerator.

Figure 3 is a partial cutaway perspective view showing the structure of the blowing fan and the evaporator applied to the refrigerator according to an embodiment of the present invention.

4 is a cross-sectional view showing a cold air circulation state of the refrigerator according to the embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

10: evaporator 12: refrigerant tube

14: Compressor 16: Condenser

101: freezer compartment 102: cold compartment

103: evaporator chamber 10a: ventilation holes

105: discharge passage 106: suction passage

30: centrifugal blowing fan 40: bending evaporator

401: refrigerant pipe 402: cooling fin

The refrigerator provided to achieve the above object is a centrifugal blower fan provided in the freezer compartment to circulate cold air, and a coolant tube and a cooling fin are bent in the same direction at a predetermined interval to wrap the discharge side of the centrifugal blower fan. It comprises an evaporator.

Here, the centrifugal blowing fan and the bent evaporator are mounted transversely in the evaporator chamber configured below the freezing chamber.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 3 and 4, and the same reference numerals will be given to the same parts as in the prior art.

First, the refrigerator according to the embodiment of the present invention as shown in Figure 3 is provided in the freezer compartment 101, the centrifugal blowing fan 30 for circulating cold air, and the bending evaporator surrounding the centrifugal blowing fan 30 It comprises a 40, the bent evaporator 40 is a coolant pipe 401 and the cooling fins 402 is bent in the same direction every predetermined section to the discharge side of the centrifugal blower fan 30. It consists of a wrapping structure.

In addition, the bent evaporator 40 is made of a so-called uniform pitch type constant interval between the cooling fins 402.

Here, the centrifugal blower fan 30 and the bent evaporator 40 are horizontally mounted in the evaporator chamber 103 formed below the freezer compartment 101. The freezer compartment 101 is located at one side of the evaporator chamber 103. A plurality of vents 10a for discharging the cold air of the furnace are formed, and a discharge passage 105 communicating with the evaporator chamber 103 is formed on the rear surface of the refrigerating chamber 102 (see FIG. 4).

Between the freezing chamber 101 and the refrigerating chamber 102, a suction flow path 106 is formed in which one end of the branch communicates with the freezer refrigerating chamber 101 and 102 and the other end communicates with the evaporator chamber 103.

According to the refrigerator according to the embodiment of the present invention as described above, as shown in FIG. 4, air in the freezing compartment 101 and the refrigerating compartment 102 is sucked between the freezer refrigerating compartment 101 and 102 by the blower fan 30. It flows into the evaporator chamber 103 through the flow path 106, is cooled while passing through the evaporator 40, and then discharged into the freezing chamber 101 through the vent 10a on one side of the evaporator chamber 103, and discharge flow path 105 Cooling operation of the freezer refrigerator compartment 101 (102) is performed by blowing through the) and discharged to the refrigerator compartment (102).

Here, the cold air circulating in the refrigerating and freezing chambers 101 and 102 and the evaporator chamber 103 may have a front surface and not a side surface of the evaporator 40 on the structural characteristics (central) of the blower fan 30 and the evaporator 40. Because of the even contact, the frosting is made evenly over the entire evaporator (40).

Therefore, according to the present embodiment, a partly thick frost layer is prevented from being formed on one side of the evaporator 40, and the circulation of the cold air is efficiently performed.

In addition, since the bent evaporator 40 according to the present embodiment is made of a uniform pitch type with a uniform spacing of the cooling fins 402, the evaporator 40 is smaller than the conventional evaporator 18 (see FIG. 2) of the non-uniform pitch type. The same cooling effect is achieved in size.

As described above, according to the refrigerator according to the present invention, the cold air is efficiently circulated, and because the volume utilization of the freezer is increased due to the structure and installation location of the evaporator and the blower fan, more food can be stored and It has the advantage of increasing freshness.

Claims (2)

A centrifugal blower fan provided in the freezing chamber for circulating cold air; A bent evaporator is formed around the discharge side of the centrifugal blower fan by forming a coolant pipe and a cooling fin in the same direction every predetermined period. Refrigerator comprising a. The method of claim 1, The centrifugal blower fan and the bending type evaporator is characterized in that the refrigerator characterized in that it is mounted transversely in the evaporator chamber configured below the freezer compartment.