KR20050077669A - Side cooling air duct for refrigerator - Google Patents

Abstract

The present invention relates to a side cold air duct of a refrigerator, comprising: a side cold air duct of a refrigerator such that cold air is discharged along a left and right direction of a refrigerator of a refrigerator in which a freezer compartment and a refrigerating compartment are formed with a partition wall formed along a vertical direction; The first member and the second member having a different heat transfer rate are formed in a tubular body to have a cold air flow path through which cold air flows, and among the first member and the second member, a member having a relatively high heat transfer rate is the frozen portion. It is characterized in that it is embedded in the partition wall to be disposed on the actual side. Thereby, the side cold air duct of the refrigerator which can reduce the temperature loss of the cold air which flows along the inside is provided.

Description

Side cold air duct of refrigerator {SIDE COOLING AIR DUCT FOR REFRIGERATOR}

The present invention relates to a side cold air duct of a refrigerator, and more particularly, to a side cold air duct of a refrigerator capable of reducing the temperature loss of cold air flowing along the inside thereof.

1 is a view illustrating the inside of a conventional refrigerator, FIG. 2 is a plan sectional view of the refrigerator of FIG. 1, FIG. 3 is a side sectional view of the refrigerating compartment of FIG. 1, and FIG. 4 is a perspective view of the side cooling air duct of FIG. 3. 5 is a cross-sectional view of the side cold air duct of FIG. 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.

The cold air inflow passage 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 may be 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 In the region corresponding to the opening of the refrigerating chamber 31, a plurality of cold air discharge ports 56a ˜ spaced apart from each other along the cold air passage 52 and the vertical direction so as to discharge cold air along the left and right directions of the refrigerating chamber 31. The side cold air duct 51 provided with 56c is provided so that it may 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.

Meanwhile, the freezer 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 accommodate and store the storage therein, and the refrigerating chamber door 33 In the upper region of the) is provided with a groove bar 35 so as to withdraw and store the internal storage without opening the refrigerating chamber door (33).

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 21 through the cold air inflow path 15, and the air is introduced into the upper cold air duct 41. Some of the cold air is discharged to the front and the bottom of the refrigerating chamber 31 through the cold air discharge port 44 formed on 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 flows along the cold air flow path 52, and each of the cold air outlets 56a to 56c. Is discharged along the left and right directions to the front region of the refrigerating chamber 31 through

By the way, in such a conventional refrigerator, the refrigerating chamber 31 is mainly cooled by the cold air discharged to the front and the lower side of the upper cold duct 41 provided in the rear upper region of the refrigerating chamber 31, so that the upper cold duct ( The front region of the refrigerating compartment 31 disposed at a relatively long distance from 41) is not only difficult to reach the cold air, but also the temperature rises relatively easily due to contact with the outside air when the refrigerating chamber door 33 is opened, whereby cooling There is a problem that it is insufficient.

In addition, the refrigerating chamber 31 has a long length in the vertical direction and the upper cold air duct 41 is disposed in the rear upper region to discharge cold air forward and downward, so that the upper region has a low temperature and the lower region has a relatively high temperature. There is a problem in that the temperature deviation between the upper and lower becomes high. In particular, in consideration of such a problem, the side cold air duct 51 installed to discharge cold air in the front region of the refrigerating chamber 31 has a small amount of cold air due to an increase in flow resistance due to the long cold air flow passage 52, Accordingly, there is a problem in that the heat loss of the cold air during the flow is large, so that a sufficient cooling effect cannot be obtained.

Accordingly, an object of the present invention is to provide a side cold air duct of a refrigerator which can reduce the temperature loss of cold air flowing along the inside.

The object is, according to the present invention, in the side cold air duct of the refrigerator such that the cold air is discharged along the left and right directions of the refrigerator of the refrigerator in which the freezer compartment and the refrigerating chamber is formed between the partition wall formed along the vertical direction, different heat transfer The first member and the second member having a rate is formed of a tubular body so as to have a cold air flow path through which cold air flows, and a relatively large heat transfer rate among the first member and the second member is disposed on the freezer compartment side. It is achieved by the side cold air duct of the refrigerator, characterized in that embedded in the interior of the partition.

Here, the first member and the second member is preferably coupled to contact each other along the thickness direction.

Among the first member and the second member, a member having a high heat transfer rate may be configured to include a thermally conductive plastic.

Among the first member and the second member, a member having a high heat transfer rate may include a metal member.

The first member and the second member may be configured to include an inclined section disposed to be inclined downward from the upper rear region to the front region of the partition wall and a vertical section extending vertically from the inclined section. to be.

Among the first and second members, a member having a high heat transfer rate may include at least one heat transfer part protruding from the plate surface.

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

6 is a cross-sectional view showing a state of use of the side cold air duct of the refrigerator according to an embodiment of the present invention, Figure 7 is a perspective view of the side cold air duct of Figure 6, Figure 8 is the separation of the side cold air duct of Figure 7 It is a perspective view, and FIG. 9 is sectional drawing along the AA line of FIG. 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 refrigerator includes a refrigerator body 11 having a freezer compartment 21 and a refrigerating compartment 31 formed therebetween with partitions 13 arranged in the up and down direction, a freezer compartment 21 and The refrigerator compartment door 23 and the refrigerator compartment door 33 which are coupled to the refrigerator main body 11 so as to rotate and open the refrigerator compartment 31, respectively.

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

The cold air inflow path 15 is formed in the rear upper region of the partition wall 13 so that the cooled cold air may flow into the refrigerating chamber 31 while passing through the evaporator 25. In the upper rear region of the refrigerating chamber 31, the cold air inlet 42 communicating with the cold air inlet 15, the damper 43 for opening and closing the cold air inlet 42, and the cold air can be discharged forward and downward. The upper cold air duct 41 is provided with a plurality of cold air outlets 44 so that the side cold air duct 70 of the refrigerator according to the embodiment of the present invention is provided along the thickness direction of the partition wall 13. Buried

The side cold air duct 70 of the present refrigerator is formed in a shape separated in the thickness direction so as to form a cold air flow passage 72 therein, and is integrally coupled to each other and has a different heat transfer rate. And a second member 81. The first member 71 is disposed on the freezing chamber 21 side and is formed of a thermally conductive plastic having a high heat transfer rate. Here, the first member may be formed of a metal member having excellent thermal conductivity.

The second member 81 is disposed on the refrigerating chamber 31 side of the first member 71 along the thickness direction of the partition wall 13 to form a cold air flow passage 72 therein, and has a low heat transfer rate. It is formed by methods such as injection.

The first member 71 and the second member 81 are inclined sections 73a and 83a having one side connected to the upper cold air duct 41 and the other side extending downward to the front region of the refrigerating chamber 31. And vertical sections 73b and 83b extending downward from the inclined sections 73a and 83a so as to be disposed perpendicularly to the front region of the refrigerating chamber 31. The first member 71 and the second member 81 have contact surfaces between the inclined sections 73a and 83a and the vertical sections 73b and 83b so that the cold air flow passage 72 can be cooperatively formed therein. Engaging portions 74 and 84 having a stepped cross section cut along the thickness direction and extending in the longitudinal direction are formed, respectively, and the first member 71 is formed at the end of each inclined section 73a and 83a. And a square ring-shaped coupling member 89 is coupled to prevent the second member 81 from being separated from each other. At the end portions of the first member 71 and the second member 81, insertion portions 75 and 85 formed to have a flat surface to be inserted into the coupling member 89 are formed. In the vertical section 83b of the second member 81, a plurality of cold air discharge ports 86a to 86c are formed to extend along the thickness direction of the partition wall 13 so as to discharge cold air.

By this configuration, when the damper 43 is rotated so that the cold air inflow hole 42 is opened, the cold air flowing along the cold air inflow path 15 is introduced into the upper cold air duct 41, and a part of the cold air is introduced. Is discharged forward and downward through the cold air outlet 44, respectively.

Some of the cold air flows along the outflow channel 45 to flow into the side cold air duct 70, and flows along the cold air path 72 of the side cold air duct 70 to pass through each of the cold air outlets 86a to 86c. Through the discharge chamber 31 is discharged to the front region.

On the other hand, the first member 71 disposed on the freezing chamber 21 side in the partition 13 maintains the state cooled by the cold air transmitted from the freezing chamber 21 side and flows through the upper cold air duct 41. By reducing the heat loss of the cold air to be discharged to maintain the relatively low temperature through each cold air discharge port (86a ~ 86c) it is possible to reduce the temperature deviation between the upper and lower portions of the refrigerating chamber (31).

10 is a view showing a state of use of the side cold air duct of the refrigerator according to another embodiment of the present invention, Figure 11 is a cross-sectional view of the side cold air duct of FIG. As shown in these figures, the side cold air duct 70 of the present refrigerator is formed in a separate shape along the thickness direction to form a cold air flow passage 72 therein to cooperate with each other, are integrally coupled to each other and heat transfer rate The other 1st member 71 and the 2nd member 81 are comprised.

The second member 81 is disposed on the side of the refrigerating chamber 31 along the thickness direction of the partition wall 13 and is formed of a conventional plastic having a low heat transfer rate by injection or the like.

The first member 71 is disposed on the freezing chamber 21 side, and is formed of a thermally conductive plastic having a relatively high heat transfer rate. Here, the first member 71 may be formed of a metal member having an excellent heat transfer rate, and may include only the inclined section 73a and the vertical section 73b in whole or in part.

On the other hand, on the surface of the first member 71, a plurality of heat transfer parts 91 protruding toward the freezing chamber 21 along the thickness direction of the partition wall 13 and extending along the length direction are formed. Here, the heat-transfer part 91 can also be comprised by fin shape.

By such a configuration, the first member 71 can maintain a lower temperature by the plurality of heat transfer parts 91 protruding toward the freezing chamber 21 having a relatively lower temperature along the thickness direction of the partition wall 13. It is possible to further reduce the heat loss of the cold air flowing along the inside, the temperature between the upper and lower parts of the refrigerating chamber 31 by discharging the cold air maintaining a relatively lower temperature through each cold air discharge port (86a ~ 86c) Make sure to reduce the deviation.

As described above, according to the present invention, a member formed of a tubular body having a cold air flow path through which cold air flows by using a first member and a second member having different heat transfer rates, and a member having a high heat transfer rate on the freezer compartment side. By being embedded in the partition wall to be disposed, there is provided a side cold air duct of the refrigerator that can reduce the heat loss of the cold air flowing along the inside to reduce the temperature deviation between the upper and lower parts of the refrigerating compartment.

1 is a view showing the inside of a conventional refrigerator,

2 is a cross-sectional plan view of the refrigerator of FIG.

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

Figure 4 is a perspective view of the side cold air duct of Figure 3,

5 is a cross-sectional view of the side cold air duct of FIG.

6 is a cross-sectional view showing a state of use of the side cold air duct of the refrigerator according to an embodiment of the present invention;

Figure 7 is a perspective view of the side cold air duct of Figure 6,

8 is an exploded perspective view of the side cold air duct of FIG. 7;

Cross-sectional view taken along the line A-A of FIG.

10 is a view showing a state of use of the side cold air duct of the refrigerator according to another embodiment of the present invention,

FIG. 11 is a cross-sectional view of the side cold air duct of FIG. 10.

Explanation of symbols on the main parts of the drawings

71: first member 72: cold air flow path

73a, 83a: slope section 73b, 83b: vertical section

74,84: engagement portion 75,85: insertion portion

86a ~ 86c: cold air outlet 89: coupling member

Claims (4)

In the side cold air duct of the refrigerator to discharge the cool air in the left and right directions of the refrigerator of the refrigerator in which the freezer compartment and the refrigerating chamber is formed with the partition wall formed along the vertical direction, The first member and the second member having a different heat transfer rate are formed in a tubular body to have a cold air flow path through which cold air flows, and among the first member and the second member, a member having a relatively high heat transfer rate is the frozen portion. The side cooling air duct of the refrigerator, which is embedded in the partition wall so as to be disposed at the actual side. The method of claim 1, The side cold air duct of the refrigerator, characterized in that the first member and the second member are coupled to be in contact with each other along the thickness direction. The method according to claim 1 or 2, The first member and the second member includes an inclined section disposed to be inclined downward from the upper rear region of the partition wall to the front region, and a vertical section extending downward from the inclined section and vertically disposed. Side cooling air duct of the refrigerator to use. The method of claim 3, The side cooling air duct of the refrigerator comprising the at least one heat transfer part protruding from the plate surface among the first member and the second member having a high heat transfer rate.