KR100428509B1 - A refrigerator - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator, and its object is to distribute the cold air discharged from the discharge port of the cold air duct in a wide range so as to uniformly cool the entire storage chamber.

To this end, according to the refrigerator according to the present invention, the cold air duct 60 includes a first discharge port 61 for discharging cold air downward at a predetermined angle, and cold air to collide with cold discharged from the first discharge port 61. The second discharge port 62 for discharging the predetermined angle upwards is formed in multiple stages so as to form a pair. Accordingly, the cold air discharged from the first discharge port 61 and the second discharge port 62 collides with each other and is widely dispersed in the horizontal direction, thereby cooling the entire storage chamber 30 evenly without temperature deviation, thereby improving product reliability of the refrigerator. There is a working effect that can be improved.

Description

Refrigerator {A refrigerator}

The present invention relates to a refrigerator, and more particularly, to a refrigerator having a cold air duct formed in multiple stages for supplying cold air generated in an evaporator of a refrigeration cycle to each storage compartment.

In general, the refrigerator is to maintain the freshness of the stored food for a long time by supplying the cold air generated through the freezing cycle to the storage compartment.

Such a conventional refrigerator has a cabinet that forms an outer body and has a storage compartment formed therein, a door hinged to the front of the cabinet to open and close the storage compartment, and a door shelf having a multi-stage door shelf at the rear thereof, and a refrigerating cycle for generating cold air and supplying the storage compartment It has components.

In addition, referring to Figures 1 and 2, the storage compartment (1) of the conventional refrigerator, the shelf (2) for storing and storing food in the compartment, and the evaporator is formed in the center of the rear wall surface of the storage compartment 1 to form a refrigeration cycle A cold air duct 3 for supplying the cold air generated in (not shown) to the storage chamber 1 is arranged. In the cold air duct 3, the discharge ports 4 are formed in multiple stages up and down while maintaining a constant interval so that cold air is discharged.

Accordingly, the cold air generated in the evaporator flows along the cold air duct 3 and is discharged into the compartment through the discharge port 4 in the storage chamber 1 to cool the food stored in the shelf 2. After the heat exchange action is completed, the air is returned to the evaporator side, whereby cold air circulation is continuously performed in the storage chamber 1.

However, in this conventional refrigerator, as shown in FIG. 2, since most of the cold air discharged through the discharge ports 4 is directed toward the center of the shelf 2, only a very small amount of cold air is provided at the edge of the shelf 2. Supplied. That is, since cold air is discharged only toward the center part of the storage chamber 1, almost no direct cold air supply is made to the side wall part of the storage chamber 1 and the edge side of the door shelf 5.

Therefore, a temperature deviation occurs depending on the location of the storage compartment 1, whereby the food stored at the edges of the shelf 2 and the door shelf 5 is less fresh than those stored at the center thereof.

SUMMARY OF THE INVENTION The present invention has been made to solve this problem, and an object of the present invention is to provide a refrigerator capable of evenly dispersing cold air discharged through a discharge port of a cold air duct and evenly cooling the entire storage compartment without temperature deviation.

1 is a cross-sectional view showing the internal structure of a conventional refrigerator.

FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1 and shows a cold air discharge state.

3 is a cross-sectional view showing the overall structure of a refrigerator according to the present invention.

4 is an excerpt of the IV region of FIG. 3.

5 is a cross-sectional view taken along the line V-V of Figure 3, showing a cold air discharge state according to the present invention.

* Description of the symbols for the main parts of the drawings *

10. Cabinet 30. Refrigerating room

31. Shelf 50. First cold duct

60..2nd cold air duct 61..1st outlet

62..2nd outlet

The present invention for achieving this object is;

What is claimed is: 1. A refrigerator comprising a cabinet having a storage compartment formed therein and a cold air duct installed on a wall of the storage compartment to supply cold air to the storage compartment.

The cold air duct is provided with a first discharge port for discharging cold air downward at a predetermined angle, and a second discharge hole for discharging cold air upward at a predetermined angle so as to collide with cold discharged from the first discharge hole. 2 is characterized in that the cold air discharged from the discharge port collides with each other and is dispersed in the horizontal direction.

In addition, the first discharge port is characterized in that the opening direction is formed to be inclined 20 to 25 degrees downward, the second discharge port is characterized in that the opening direction is formed to be inclined 20 to 25 degrees upward.

In addition, the cold air duct is characterized in that the first discharge port and the second discharge port is formed in a plurality of stages up and down while forming a pair.

According to this structure, the cold air discharged from the first discharge port and the second discharge port collides with each other and is widely dispersed in the storage chamber in the horizontal direction, thereby allowing the entire storage chamber to be cooled evenly.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 3, the refrigerator according to the present invention includes a cabinet 10 in which a freezing compartment 20 and a refrigerating compartment 30 are partitioned as a storage compartment, and a hinge coupled to a front surface of the cabinet 10. The refrigerator 14 is provided with doors 14 and 15 provided with a multi-stage door shelf 16 at the rear of the refrigerator compartment 30 and a refrigeration cycle component for supplying cold air to the freezer compartment 20 and the refrigerator compartment 30.

The cabinet 10 includes an inner wound 11 forming the inner walls of the freezing chamber 20 and the refrigerating chamber 30, an outer wound 12 bent to surround the inner wound 11, and an outer wound 12 and the inner wound 11. Injecting urethane foam into a foamed heat insulating wall (13). In the cabinet 10, the freezing chamber 20 and the refrigerating chamber 30 are divided up and down by the intermediate partition 18. Reference numeral 17 denotes a compressor of a refrigeration cycle disposed in the machine room of the cabinet 10.

In addition, a separate cold air generating chamber 40 is formed at the rear of the freezing chamber 20, wherein the evaporator 41 constituting the freezing cycle and the cold air generated by the evaporator 41 are stored in the freezing chamber 20 and the refrigerating chamber 30. A fan 42 for forcibly blowing air is provided. The evaporator 41 passes through the heat exchange fins arranged in parallel while the refrigerant pipe is bent in a U shape, and the refrigerant passing through the refrigerant expansion device (not shown) of the refrigeration cycle enters and evaporates. The fan 42 is a kind of propeller fan and is disposed at the upper center portion of the evaporator 41.

In addition, the intermediate partition 18 is provided with a return duct 19 for guiding the air that has undergone heat exchange in the freezer compartment 20 and the refrigerating compartment 30 to be returned to the evaporator 41 side. To this end, the return duct 19 is formed in communication with the lower space of the cold air generating chamber 40. Therefore, when the fan 42 is operated, the air in the freezer compartment 20 and the refrigerating compartment 30 is sucked into the evaporator 41 through the return duct 19, and the air which is subsequently heat-exchanged is again in the freezer compartment 30 and the refrigerating compartment. 40 is blown.

In addition, a first cold air duct 50 for supplying cold air generated by the evaporator 41 is provided on the rear wall surface of the freezing chamber 20, and cold air generated by the evaporator 41 also on the rear wall surface of the refrigerating chamber 40. A second cold air duct 60 for distributing a portion and guiding it into the refrigerating chamber 30 is disposed.

The second cold air duct 60 is installed in the center of the rear wall surface of the refrigerating chamber 30, and the discharge ports 61 and 62 are formed directly below the adjacent shelf 31, so that the cold air is refrigerating chamber 30. It is discharged to the compartment between the shelves 31 arranged in the. The discharge ports 61 and 62 of the second cold air duct 60 are formed in a plurality of stages in a pair of two, and the cold air discharged from them collides with each other to be widely distributed in the horizontal direction.

That is, referring to FIG. 4, the discharge ports 61 and 62 provided in the second cold air duct 60 may include a first discharge port 61 for discharging cold air downward at a predetermined angle, and the first discharge port 61. It consists of a second discharge port 62 for discharging the cold air upwards by a predetermined angle so as to collide with the cold discharged from.

The opening direction of the first discharge port 61 is inclined 20 to 25 degrees downward, and the opening direction of the second discharge port 62 is inclined 20 to 25 degrees upward. In the present embodiment, the lower inclination angle Θ1 of the first discharge port 61 is -22.5 degrees, and the upper inclination angle Θ2 of the second discharge port 62 is +22.5 degrees, so that the first discharge port 61 and the second discharge port are It was comprised so that the angle between 62 might be 45 degree | times. In addition, the vertical distance D to the point where the cold air discharged from the second cold air duct 60 and the first and second discharge ports 61 and 62 collides was set to about 140 mm.

This configuration is for dispersing the cold air flow widely in the refrigerating chamber 30 in the horizontal direction while maintaining a straightness when the cold air flows discharged from the first discharge port 61 and the second discharge port 62 collide with each other.

Next, the operation of the refrigerator according to the present invention configured as described above and the effects thereof will be described.

First, when the compressor 17 and the fan 42 are started, air in the freezing compartment 20 and the refrigerating compartment 30 flows into the lower part of the evaporator 41 through the return duct 19 and then heat exchanges with the refrigerant. It becomes cold.

Subsequently, the cold air generated in the evaporator 41 is supplied to the freezing chamber 20 through the first cold air duct 50 by a blowing force of the fan 42, and the other part of the cold air duct 60 is transferred to the freezing chamber 20. The discharge ports 61 and 62 are supplied to the refrigerating chamber 30.

And the air exchanged with the food stored in the freezer compartment 20 and the refrigerating compartment 30 is introduced into the evaporator 41 to be cooled again, thereby keeping the stored food in a fresh state.

At this time, the cold air discharged through the first discharge port 61 and the second discharge port 62 collide with each other and are supplied to the refrigerating chamber 30. That is, the cold air flow discharged downward through the first discharge port 61 and the cold air flow discharged upward through the second discharge port 62 collide with each other at 140 mm of the second cold air duct 60 in the horizontal direction. Are dispersed widely, and the dispersed cold air is then straight toward the back side of the door 16.

As a result, as shown in FIG. 5, the dispersed cold air is widely distributed throughout the refrigerating chamber 30, and uniform cold air is supplied even to the door shelf 16 on the rear surface of the door 15.

As a result, the cold air is uniformly transmitted to the door shelf 16 while making a wide width of about 2 times as compared with the conventional art. Therefore, the refrigerator 30 is evenly distributed and supplied throughout the refrigerating chamber 30 without a separate dispersing means, so that the temperature deviation according to the location of the refrigerating chamber 30 is not generated and the food stored therein is uniformly cooled.

In addition, since the cold air flows directly under each shelf 31 while colliding with each other, the shelf 31 may also be directly cooled to keep the food stored therein more freshly.

As described above in detail, according to the refrigerator according to the present invention, the cold air duct includes a first discharge port for discharging cold air downward by a predetermined angle, and cold air upward by a predetermined angle so as to collide with cold discharged from the first discharge hole. The second discharge port for discharging air is formed in multiple stages so as to form a pair. Accordingly, since the cold air discharged from the first discharge port and the second discharge port collide with each other and are widely distributed in the horizontal direction, the entire storage compartment is evenly cooled without temperature deviation, thereby improving the product reliability of the refrigerator.

Claims (3)

What is claimed is: 1. A refrigerator comprising a cabinet having a storage compartment formed therein and a cold air duct installed on a wall of the storage compartment to supply cold air to the storage compartment. The cold air duct is provided with a first discharge port for discharging cold air downward at a predetermined angle, and a second discharge hole for discharging cold air upward at a predetermined angle so as to collide with cold discharged from the first discharge port. The refrigerator characterized in that the cold air discharged from the first discharge port and the second discharge port collide with each other and are dispersed in a horizontal direction. The method of claim 1, The first discharge port is formed to be inclined 20 to 25 degrees downward opening direction, The second discharge port is a refrigerator, characterized in that the opening direction is formed inclined 20 to 25 degrees upward. The method of claim 1, The cold air duct is a refrigerator characterized in that the first discharge port and the second discharge port is formed in a plurality of stages up and down as a pair.