KR20040090426A - Air circulation system of refrigerator - Google Patents

Abstract

PURPOSE: A system for circulating cold air in a refrigerator is provided to improve the freezing efficiency by circulating cold air through the whole space of a freezer compartment. CONSTITUTION: A machine chamber contains parts of a refrigerator. A machine chamber partition(30) is formed to define the machine chamber and a low-temperature compartment of the refrigerator. A cold air discharge port(32) is formed at an upper part of the low-temperature compartment. A cold air suction port(31) sucks cold air discharged through the cold air discharge port. A passage guide(34) is formed above the cold air suction port while forming a gap to suck the cold air after circulating through the low-temperature compartment, and shields the upper side of the cold air suction port.

Description

Air circulation system of refrigerator

The present invention relates to a cold air circulation system of a refrigerator for allowing cold air to circulate in the refrigerator, and more particularly, to a cold air circulation system of a refrigerator for allowing cold air circulating inside the refrigerator to be properly circulated to the entire area of the refrigerator. .

Conventional refrigerators generally include a freezer compartment formed at an upper side and a refrigerating compartment formed at a lower side of the freezer compartment. However, in recent years, a structure of a refrigerator in which the freezer compartment is formed on the lower side when viewed from the entire refrigerator and the refrigerator compartment is formed on the upper side of the freezer compartment has been proposed. In particular, the present invention proposes a cold air circulation system of the refrigerator in which the freezer compartment is formed at the lower side.

1 is a cross-sectional view of a conventional general refrigerator.

Referring to FIG. 1, a conventional refrigerator includes a refrigerator main body 1 forming an exterior of a refrigerator, an upper door 5 which is a door of a refrigerating chamber 2 formed above the main body 1, and the refrigerating chamber 2. The lower door 6, which is a door of the freezing chamber 3 formed below, a barrier 4 for partitioning the refrigerating chamber 2 and the freezing chamber 3, and a substantially rear surface of the freezing chamber 3; Located in the evaporator (8) for generating cold air, the blowing fan (9) for blowing the cold air generated in the evaporator (8) into the freezer compartment 3, and is formed on the lower side of the evaporator (8) The machine room 7 to which components, such as a compressor, is mounted, and the machine room partition 10 for partitioning the said machine room 7 and the freezing compartment 3 and separating a space are included.

In the conventional cold air circulation structure in the freezer compartment, the cold air is blown to the upper side of the freezer compartment 3 by the blowing fan 9. The cold air blown to the upper side of the freezing chamber 3 is moved to the lower side of the freezing chamber 3 by the specific gravity of the cold air, and the moved air flows into the lower side of the evaporator 8 and is cooled again.

2 is a side cross-sectional view of a freezer compartment illustrating a cold air circulation system of a conventional refrigerator, and FIG. 3 is a front view of a freezer compartment illustrating a cold air circulation system of a conventional refrigerator.

Referring to FIG. 2, the freezer compartment 3, the lower door 6, the barrier 4, the evaporator 8, the blower fan 9, the machine room 7, and the machine room as described above. A partition 10 is included.

In addition, a cold air discharge port 12 formed in a direction in which cold air is discharged from the blower fan 9, and a cold air intake port 11 formed at an approximately upper side of the machine room partition 10 to allow relatively hot air to be sucked in. ) Is formed.

Referring to FIG. 2, a cold air discharge port 12 through which cold air blown by the blower fan 9 is exposed, and a cold air intake port 11 for sucking hot air after cooling the food in the freezer compartment. Included.

In particular, a plurality of grids are formed in the cold air discharge port 12 and / or the cold air suction port 11 to discharge or suck cold air.

However, the cold air circulation system of the conventional refrigerator has the following problems.

First, as illustrated by the arrow of FIG. 2, there is a problem that air discharged from the cold air discharge port 12 is not circulated through the entire freezing compartment and is directly sucked into the cold air intake port 11. This is because the distance from the cold air outlet 12 to the cold air inlet 11 is close.

Because of this, there was a problem that the food is not completely cooled inside the freezer compartment, and eventually there was a problem that can not be frozen in response to the freezing load by the food in the freezer compartment. In particular, there is a problem that the freezing can not be performed smoothly for the food placed in the front of the freezer compartment.

In addition, since the evaporator 8 is visible to the naked eye through a plurality of grids formed in the cold air intake port 11, there is a disadvantage in that it causes problems in an advanced image of the refrigerator.

And, during the defrosting operation of the refrigerator, heat is transmitted by radiation or convection through the cold air intake port 11, thereby causing a problem that the food in the freezer compartment may be damaged.

The present invention has been made to solve the problems as described above, and an object of the present invention is to propose a cold air circulation system of a refrigerator in which cold air circulation inside the refrigerator can occur more efficiently.

In addition, an object of the present invention is to propose a cold air circulation system of the refrigerator, which can further enhance the refrigerator by simplifying the internal structure of the refrigerator so that the part observed by the naked eye disappears.

In addition, an object of the present invention is to propose a cold air circulation system of the refrigerator capable of minimizing the adverse effects on the inside of the freezer compartment during the defrosting operation of the refrigerator.

1 is a cross-sectional view of a conventional general refrigerator.

2 is a side cross-sectional view of a freezer compartment illustrating a cold air circulation system of a conventional refrigerator.

3 is a front view of a freezer compartment illustrating a cold air circulation system of a conventional refrigerator.

Figure 4 is a side cross-sectional view of the cold air circulation system of the refrigerator according to the present invention.

5 is a cross-sectional view of the flow path guide according to the present invention.

6 is a front view of a freezer compartment illustrating a cold air circulation system of a refrigerator according to the present invention.

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

1: refrigerator body 2: refrigerator 3,23: freezer

4, 24: barrier 5: upper door 6, 26: lower door

7, 33: machine room 8, 28: evaporator 9, 29: blowing fan

10, 30: machine room partition 11, 31: cold air intake

12, 32: cold air discharge port 34: flow path guide

The cold air circulation system of the refrigerator according to the present invention for achieving the object as described above is formed in the machine room for storing the parts of the refrigerator, the machine room, a machine room partition for partitioning the refrigerator low temperature room, and approximately above the low temperature room. A cold air discharge port, a cold air suction port through which cold air discharged through the cold air discharge port is sucked, and a cold air discharged from the cold air discharge port are fixed above the cold air suction port so as to be sucked into the cold air suction port after circulating the low temperature chamber. It is formed spaced apart, characterized in that the flow path guide for shielding the upper surface of the cold air intake.

The above configuration has the advantage of increasing the cooling efficiency of the freezer compartment. In addition, by reducing the leakage of high heat that extends to the inside of the freezer compartment during the defrosting operation of the refrigerator, there is an effect that can increase the operating efficiency of the freezer compartment.

Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings. However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention can easily present another embodiment by adding a component or the like within the scope of the present invention. will be.

Figure 4 is a side cross-sectional view of the cold air circulation system of the refrigerator according to the present invention.

Referring to FIG. 4, the cold air circulation system of the refrigerator according to the present invention includes a lower door 26, which is a door of the freezing compartment 23, a barrier 24 that partitions the refrigerating compartment and the freezing compartment 23, and An evaporator 28 positioned at a rear surface of the freezer compartment 23 to generate cold air, a blower fan 19 for blowing cold air generated in the evaporator 28 into the freezer compartment 23, and the evaporator ( 28 is formed in the lower side of the machine room 33, the machine compartment 33, the machine compartment partition 30 for separating the space by partitioning the machine room 33 and the freezing chamber 23, the blowing fan ( 19 is formed on the discharge side of the cold air discharge port 32 which is an outlet for discharging cold air, the cold air intake port 31 through which the air blown from the cold air discharge port 32 is sucked, and above the cold air intake port 31. It is formed at a certain distance and serves as a guide for inhaling cold air. Include a flow guide (34) is carried out.

In addition, the flow guide 34 may extend from an inner case forming a rear side at an inner circumference of the freezing compartment 23, or a separate structure may be formed by being combined with the inner case. In addition, the flow path guide 34 is formed in the entire area of the cold air intake port 31 so that a plurality of grids formed in the cold air intake port 31 are not visible.

In addition, the cold air discharge port 32 is not formed a plurality of grids, so that a single slot is formed horizontally formed horizontally, it is made in a simple shape within the range that does not interfere with cold air discharge.

In addition, the barrier 24, the lower door 26, the inside of the machine room partition 30 includes a heat insulating material is formed a plurality of pores, so that the heat transfer action that can be conducted to the outside is blocked.

The operation of the cold air circulation system of the refrigerator according to the present invention having the configuration as described above will be described.

First, the cold air generated by the evaporator 28 is forcibly sucked by the blower fan 19 and discharged into the freezing chamber through the cold air discharge port 32. The cold air discharged through the cold air discharge port 32 is circulated through the entire inside of the freezer compartment, and is then sucked into the cold air intake port 31 and sent to the evaporator 28 again.

In particular, the cold air sucked into the cold air suction port 31 is guided by the flow path guide and is sucked from the lower end of the cold air suction port 31. In other words, the cold air sucked into the cold air intake port 31 may be introduced only below the cold air intake port 31 by the flow path guide 34.

In FIG. 4, arrows indicate air circulation in the freezer compartment. In detail, the cold air discharged from the cold air discharge port 32 can be sucked only from the lower side of the cold air suction port 31. As a result, the cold air can be sucked into the cold air intake port 31 only after circulating the inside of the freezer compartment, and can quickly cool the food in the entire freezer compartment, and can quickly cool any food located in the freezer compartment. Will be. In particular, the food placed in front of the freezer compartment also cools.

5 is a view for explaining a cross-sectional view of the flow path guide according to the present invention.

Referring to FIG. 5, a machine air compartment 30, a cold air inlet 31 formed by opening a plurality of holes that are formed to be opened substantially above the machine room compartment 30, and the entire cold air inlet 31. In order to allow the cold air to be sucked into only the flow path formed on the upper surface of the machine room partition 30 without the cold air being sucked directly through the cold air suction port 31, the flow path guide having the same appearance as the machine room partition 30 ( 34) is included.

By the single cold air flow path formed by the flow path guide 34 and the machine room partition 30, the cold air flows into the lower side of the flow path guide 34 only. Then, the cold air may be sucked through the cold air intake port 31 only after the cold air flow path formed by the upper surface of the flow path guide 34 and the machine room partition 30.

The arrows in FIG. 5 depict this properly, and cold air can only be sucked into holes formed in the lower end of the flow path guide 34. Therefore, the cold air can be sucked into the cold air intake port 31 after circulating the entire interior of the freezer compartment. In other words, among the cold air discharged by the cold air discharge port 32, the ratio of the cold air sucked directly into the cold air intake port 31 is reduced, and the hot air sucked into the cold air intake port 31 after being heated after circulating inside the entire freezer compartment is You can increase the ratio.

6 is a front view of a freezer compartment illustrating the cold air circulation system of the refrigerator according to the present invention.

Referring to FIG. 6, it can be seen that the cold air discharge port 32 is formed in a straight line on an upper side of the rear surface of the freezing chamber. The flow guide 34 may be formed to cover the upper side of the cold air intake 31.

In addition, both ends of the flow path guide 34 are formed to contact the machine compartment partition 30 so that cold air flowing into both sides of the flow path guide 34 is not generated, thereby improving the efficiency of cold air circulation. have. However, in order to increase the suction efficiency of the refrigerant through the cold air inlet 31, both sides of the flow path guide 34 may be opened, and cold air may be sucked through both sides of the open channel guide 34.

And, as shown in Figure 6, it is preferable that the flow path guide is formed in the same number as the number of cold air inlet 31, in Figure 6 cold air inlet 31 is formed by gathering in two places of the machine room partition (30). The flow path guides 34 are formed in two places on the upper surface of these cold air intake ports 31, respectively.

On the other hand, since the flow path guide 34 is formed to cover the entire surface of the cold air intake 31, the heat that can flow out through the cold air intake 31 during the defrost of the refrigerator is reduced.

In addition, since the upper surface of the cold air intake port 31 is not covered by the flow path guide 34, the evaporator 28 is not visible to the naked eye, thereby enhancing the image of the refrigerator.

Although the present embodiment is described by taking a freezing chamber as an example, in order to increase the efficiency of freezing or refrigerating with respect to a constant low temperature space in which a machine room and a machine room partition are formed, the idea of the present invention may be applied to increase the efficiency of freezing. There will be.

According to the present invention, the cold air circulation inside the refrigerator may occur through the entire space of the freezer compartment, and thus the freezing efficiency is improved.

In addition, the present invention has the effect of further enhancing the image of the refrigerator by simply shielding the mechanical structure visible to the naked eye simply by the internal structure of the refrigerator.

In addition, the present invention can minimize the thermal effect on the inside of the freezer during the defrosting operation of the refrigerator has the effect of improving the performance of the refrigerator as a whole.

Claims (3)

Machine room where parts of refrigerator are stored, A machine room partition for partitioning the machine room and the refrigerator low temperature room, A cold air discharge port formed substantially above the low temperature chamber; A cold air suction port through which cold air discharged through the cold air discharge port is sucked; In order to allow the cold air discharged from the cold air discharge port to circulate the low temperature chamber and to be sucked into the cold air intake port, the cold air inlet is formed at a predetermined interval apart from the upper side of the cold air intake port, and includes a flow path guide for shielding the upper surface of the cold air intake port. Cold air circulation system of the refrigerator, characterized in that. The method of claim 1, Both sides of the flow path guide is in contact with one surface of the machine compartment partition so that the cold air flows through only the lower side of the flow guide of the refrigerator. The method of claim 1, The cold air suction port is a cold air circulation system of the refrigerator, characterized in that a plurality of holes are formed.