KR20050079850A - Cool air supply apparatus for refrigerator - Google Patents

Abstract

The present invention relates to a cold air supply device for a refrigerator, wherein a freezer compartment and a refrigerating compartment are formed with partition walls disposed along an up and down direction, and cold air is introduced into the refrigerating compartment in the upper region of the partition wall. A cold air supply device for a refrigerator having an inflow path, comprising: an upper cold duct disposed in an upper region of the refrigerating chamber in communication with the cold air inflow path to discharge cold air; A side cold air duct connected to one side of the cold air inflow passage and the other side extending to a front region of the refrigerating chamber and disposed on the partition wall in an up and down direction to discharge cold air; And a damper installed at the cold air inflow path to open and close the cold air inflow path. Thereby, the cold air supply apparatus of the refrigerator which is simple in structure, can make manufacture easy, and can reduce the flow resistance of cold air is provided.

Description

Cold air supply unit of refrigerator {COOL AIR SUPPLY APPARATUS FOR REFRIGERATOR}

The present invention relates to a cold air supply device for a refrigerator, and more particularly, to a cold air supply device for a refrigerator, which is simple in structure and easy to manufacture and reduces flow resistance of cold air.

1 is a perspective view of a conventional refrigerator, FIG. 2 is a sectional plan view of FIG. 1, FIG. 3 is a side sectional view of the refrigerating compartment of FIG. 1, and FIG. 4 is a sectional front view of the refrigerating and cooling air duct of FIG. 2. As shown in these drawings, the refrigerator includes a refrigerator main body 11 and a freezing chamber in which a freezing chamber 21 and a refrigerating chamber 31 are formed at left and right, respectively, with partitions 13 arranged in the vertical direction. 21) and a freezer compartment door 23 and a refrigerator compartment door 33 which are hinged to the refrigerator main body 11 so as to rotate and open each front opening of the refrigerating compartment 31. As shown in FIG.

A circulation passage 24 is formed in the rear region of the freezing chamber 21 to allow air to circulate, and the evaporator 25 is installed in the circulation passage 24 so that heat can be exchanged while the air passes therethrough.

A cold air inlet 15 is formed in the upper region of the partition 13 to allow the cool air to flow into the refrigerating chamber 31, and the air of the refrigerating chamber 31 is sucked into the circulation passage 24 in the lower region. The suction port 16 is formed.

On the other hand, in the upper upper rear region of the refrigerating chamber 31 is provided with a rectangular parallelepiped upper cold air duct 41 through which the cold air inlet hole 42 is formed in one side to communicate with the cold air inlet passage 15, the partition wall 13 Side cold air duct having a plurality of cold air outlets 56a to 56c spaced apart from each other in the vertical direction to discharge cold air in the left and right directions of the refrigerating compartment 31 in the region corresponding to the opening of the refrigerating compartment 31 of 51 is installed to be embedded.

The cold air inlet 42 of the upper cold air duct 41 is provided with a damper 43 to control the inflow of cold air through the cold air inlet 15, the upper cold air duct 41 has a front and Cold air discharge ports 44 are formed at the bottom to respectively discharge cold air to the front and the bottom.

An outlet flow passage 45 is formed at one end of the upper cold air duct 41 so that cold air can flow out to the side cold air duct 51, and an inlet side of the side cold air duct 51 is formed at the end of the outlet air passage 45. Are interconnected.

On the other hand, the freezing chamber door 23 and the refrigerating chamber door 33 are provided with a plurality of door baskets 27 and 37, which are spaced apart from each other along the up and down direction, to receive and support the storage therein.

By this configuration, when the damper 43 is rotated and the cold air inflow path 15 is opened, cold air is introduced from the freezing chamber through the cold air inflow path 15, and a part of the cold air introduced into the upper cold air duct 41 is introduced. Is discharged to the front and the bottom of the refrigerating chamber 31 through the cold air discharge port 44 formed in the front and bottom, respectively. Some of the cold air flows along the outflow passage 45 and flows into the side cold air duct 51, and the cold air introduced into the side cold air duct 51 passes through the cold air outlets 56a to 56c in front of the refrigerating chamber 31. It is discharged along the left and right directions to the area.

By the way, in such a conventional refrigerator, the front opening area of the refrigerating chamber 31 is relatively far from the cold air outlet 44 of the upper cold air duct 41, so that it is difficult to reach cold air, and the side cold air duct 51 Not only is formed in a structure bent several times to be connected to the upper cold air duct 41, the inlet side is connected to the outlet flow path 45 formed in the opposite direction to the flow direction of the cold air flowing into the upper cold air duct 41 Therefore, the flow resistance of the internal cold air increases, so that the front opening area of the refrigerating compartment 31 has a lot of contact with the outside air when the refrigerating chamber door 33 is opened, and each cold air discharge port 56a to 56c of the side cold air duct 51 There is a problem that the temperature is easily increased because the actual amount of cold air discharged through) is insufficient.

In addition, the upper cold air duct 41 is formed at the bottom to form an outlet flow path 45 so that cold air can be discharged to the side cold air duct 51, which not only complicates the configuration but also flows out as opposed to the inflow direction of the cold air. There is a problem that the 45 is formed to increase the flow resistance of the cold air.

Accordingly, an object of the present invention is to provide a cold air supply device for a refrigerator that can be easily manufactured due to its simple structure and can reduce the flow resistance of cold air.

According to the present invention, a freezer compartment and a refrigerating compartment are respectively formed with the partitions arranged along the vertical direction therebetween, and a cold air inflow path is provided so that cold air of the freezer compartment can flow into the refrigerating compartment in the upper region of the partition. A cold air supply apparatus for a refrigerator, comprising: an upper cold air duct disposed in an upper region of the refrigerating chamber in communication with the cold air inflow path to discharge cold air; A side cold air duct connected to one side of the cold air inflow passage and the other side extending to a front region of the refrigerating chamber and disposed on the partition wall in an up and down direction to discharge cold air; It is achieved by the cold air supply apparatus of the refrigerator, characterized in that it comprises a damper installed in the cold air inlet passage to open and close the cold air inlet.

Here, the damper is disposed in parallel with the cold air inflow path, the front open position for opening the cold air inflow path, the blocking position arranged to block the cold air inflow path, and the upper cold air duct and the side cold air duct It is effective to be able to rotate between partial open positions for allowing cold air to flow into either of the inlets.

Preferably, the damper is disposed upstream of the side cold air duct along an inflow direction of the cold air to block an inlet of the side cold air duct at the partial opening position.

The damper is disposed upstream of the inlet of the upper cold duct along the inflow direction of the cold air, and it is effective to block the inlet of the upper cold duct at the partial opening position.

The inlet of the side cold air duct is disposed to be spaced apart from the inlet of the upper cold air duct along a thickness direction of the partition wall, and the damper may be disposed to be inclined with respect to the partition wall at the partial opening position.

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

5 is a cross-sectional view of an installation state of a cold air supply device of a refrigerator according to an embodiment of the present invention, FIG. 6 is a sectional front view of the upper cold air duct of FIG. 5, and FIG. 7 is a partial open position of the damper of FIG. 5. 8 is a view illustrating a blocking position of the damper of FIG. 5. The same and equivalent parts as those described above and shown in the drawings will be omitted for convenience of description of the drawings and will be described with reference to the same reference numerals. As shown in these figures, the cold air supply device of the present refrigerator, the upper cold air duct 61 is disposed in the upper region of the refrigerating chamber 31 in communication with the cold air inlet passage 15 to discharge the cold air, one side is cold air The other side includes a side cold air duct 71 which communicates with the inflow path 15 and extends into the front opening area of the refrigerating chamber 31 and is disposed inside the partition 13 along the vertical direction to discharge cold air. .

The upper cold air duct 61 is formed to have a rectangular parallelepiped shape, and one side of the upper cold air duct 61 is formed to penetrate through the cold air inlet 15. Cold air discharge ports 64 are formed on the front and bottom surfaces of the upper cold air duct 61 so as to discharge cold air forward and downward, respectively.

The side cold air duct 71 is embedded in the thickness direction of the partition 13 so as to communicate with the cold air inflow path 15 and extends downward in an inclined direction to the front region, and is disposed to extend downward in the vertical direction. A plurality of cold air discharge ports 75 are formed in the region disposed along the vertical direction.

On the other hand, a damper 81a is provided on the upstream side of the inlet of the inner side cold air duct 71 of the cold air inlet 15 to open and close the cold air inlet 15. The damper 81a has a cutoff position for blocking the cold air inflow passage 15, a front open position for opening the cold air into the side cold air duct 71 and the upper cold air duct 61 at the same time, and a side cold air duct. The inlet of the 71 is blocked so that the inlet of the upper cold air duct 61 is opened so that rotation is possible between partial opening positions.

By this structure, as shown in FIG. 8, when the damper 81a exists in the blocking position arranged perpendicularly to the cold air inflow path 15, the side cold air duct 71 and the upper cold air duct 61 are located. Are blocked at the same time.

As shown in FIG. 5, when the damper 81a is rotated to the front open position, the damper 81a flows along the circulation passage 24 and some of the cooled cold air in contact with the evaporator 25 flows along the cold air inlet passage 15. And a part flows along the side cold air duct 71 and is discharged along the left and right directions to the front region of the refrigerating chamber 31 through each cold air discharge port 75 of the side cold air duct 71. Some of the cold air is introduced into the upper cold air duct 61 and discharged to the front and the lower portion of the upper cold air duct 61 through each cold air discharge port 64, respectively.

On the other hand, as shown in FIG. 7, when the damper 81a is rotated to the partially open position, the cool air flowing through the evaporator 25 and introduced into the cold air inflow path 15 are not distributed to the side cold air duct 71. Not all of them are introduced into the upper cold air duct 61 through the inlet port 62, and discharged forward and downward through the respective cold air discharge port 64 can be concentrated cooling the rear region of the refrigerating chamber 31.

9 is a cross-sectional view illustrating an installation state of a cold air supply device of a refrigerator according to another embodiment of the present invention, and FIGS. 10 and 11 are views illustrating a blocking position and a partial opening position of the damper of FIG. 9, respectively. As shown in these figures, the cold air supply device of the present refrigerator, the upper cold air duct 61 is disposed in the upper region of the refrigerating chamber 31 in communication with the cold air inlet passage 15 to discharge the cold air, one side is cold air The side cold air duct 71 which communicates with the inflow path 15 and the other side extends to the front opening area of the refrigerating chamber 31 and is disposed inside the partition 13 along the vertical direction to discharge the cold air, and the side cold air duct ( The damper 81b is rotatably disposed between the inlet 73 of the 71 and the inlet 62 of the upper cold air duct 61.

Inlet 62 of the upper cold air duct 61 is connected to each other in a downstream region of the cold air inlet 15 along the inflow direction of the cold air, and the inlet 73 of the side cold air duct 71 is connected to one side. It is connected in communication. The inlet 73 side region of the side cold air duct 71 of the cold air inflow path 15 extends in the width direction corresponding to the rotational trajectory of the damper 81b.

On the other hand, the damper 81b is rotatably provided between the inflow port 73 of the side cold air duct 71 and the inflow port 62 of the upper cold air duct 61 along the inflow direction of the cold air. The damper 81b is disposed side by side on the inner wall of the cold air inflow path 15, and the front open position for allowing cold air to flow into the side cold air duct 71 and the upper cold air duct 61 at the same time, and the cold air inflow path 15 The inclined position with respect to the side cold air duct 71 and the upper cold air duct 61 is blocked position at the same time, the inlet 73 of the side cold air duct 71 and the inlet of the upper cold duct 61 The inlet 62 of the upper cold air duct 61 is interposed between the openings 62, and the inlet 73 of the side cold air duct 71 is rotatably installed between the partially open positions.

By this configuration, as shown in FIG. 10, when the damper 81b is in the blocking position, cold air inflow is blocked in the side cold air duct 71 and the upper cold air duct 61, and the damper 81b is closed in FIG. When rotated to the front open position shown in the cold air supply is made to the side cold air duct (71) and the upper cold air duct (61) at the same time. On the other hand, as shown in FIG. 11, when the damper 81b is rotated to the partially open position, all the cold air that comes into contact with the evaporator 25 and cools and flows into the cold air inflow path 15 flows into the side cold air duct 71. Then, it is discharged through each cold air discharge port 75 to intensively cool the front region of the refrigerating chamber 31.

As described above, according to the present invention, the upper cold air duct is installed in the upper region of the refrigerating chamber to communicate with the cold air inlet passage to discharge the cold air, one side is connected to each other in communication with the cold air inlet passage and the other side is inside the partition wall Accordingly, by providing a side cold air duct extending in the front region of the refrigerating compartment and arranged along the vertical direction to discharge the cold air, a cold air supply device of the refrigerator is provided which is simple in structure and easy to manufacture and reduces the flow resistance of the internal cold air. .

In addition, a cutoff position for blocking the cold air inlet passage inside the cold air inlet passage, a front open position in which the side cold air duct and the upper cold duct open simultaneously, and a partial open position in which one of the side cold air duct and the upper cold air duct is opened. By further providing the damper so that the liver can rotate, the refrigerator's cold air supply device capable of front cooling and partial concentrated cooling of the refrigerating chamber is provided.

1 is a perspective view of a conventional refrigerator,

2 is a plan sectional view of FIG. 1;

3 is a side cross-sectional view of the refrigerating compartment of FIG. 1,

Figure 4 is a front sectional view of the refrigeration cold air duct of Figure 2,

5 is a cross-sectional view of the installation state of the cold air supply apparatus of the refrigerator according to an embodiment of the present invention;

6 is a front sectional view of the upper cold air duct of FIG. 5;

7 is a view showing a partially open position of the damper of FIG.

8 is a view showing a blocking position of the damper of FIG. 5;

9 is a cross-sectional view showing an installation state of a cold air supply device of a refrigerator according to another embodiment of the present invention;

10 and 11 are views illustrating a blocking position and a partially open position of the damper of FIG. 9, respectively.

Explanation of symbols on the main parts of the drawings

11: refrigerator body 13: bulkhead

15: cold air inlet 21: freezer

24: circulation passage 25: evaporator

31: refrigerator compartment 61: upper cold air duct

71: side cold air duct 81a: damper

Claims (5)

A freezer compartment and a refrigerating compartment are respectively formed with partition walls arranged along the up and down direction, and a cold air inlet path is formed in an upper region of the partition wall so that cold air of the freezer compartment can be introduced into the refrigerating compartment. In An upper cold air duct disposed in an upper region of the refrigerating chamber so as to communicate with the cold air inflow path; A side cold air duct connected to one side of the cold air inflow passage and the other side extending to a front region of the refrigerating chamber and disposed on the partition wall in an up and down direction to discharge cold air; And a damper installed in the cold air inflow path to open and close the cold air inflow path. The method of claim 1, The damper is disposed in parallel with the cold air inflow path, the front open position for opening the cold air inflow path, the blocking position arranged to block the cold air inflow path, and the inlet of the upper cold air duct and the side cold air duct. The refrigerator's cold air supply apparatus, characterized in that it is rotatable between the open position to allow the cold air to flow into any one. The method of claim 2, The damper is disposed in an upstream side of the side cold air duct along the inflow direction of the cold air, the cold air supply apparatus of the refrigerator, characterized in that to block the inlet of the side cold air duct at the partial opening position. The method of claim 2, The damper is disposed in the upstream side of the inlet of the upper cold air duct along the inflow direction of the cold air, the cold air supply apparatus of the refrigerator, characterized in that blocking the inlet of the upper cold air duct at the partial opening position. The method of claim 4, wherein The inlet of the side cold air duct is disposed to be spaced apart from the inlet of the upper cold air duct along a thickness direction of the partition wall, the damper is disposed at a predetermined inclination with respect to the partition wall in the partial opening position of the refrigerator. Cold air supply.