KR100585689B1 - Refrigerator with duct fan - Google Patents

Abstract

The present invention relates to a refrigerator having a duct fan, comprising: a refrigerator having a refrigerator body in which a freezer compartment and a refrigerating compartment are formed with a partition wall formed in an up and down direction interposed therebetween, buried in one wall of the refrigerating compartment. One side is connected to receive the cold air from the freezer compartment in the rear region of the refrigerator compartment and the other side is bent to extend downward again after extending to the front opening region of the refrigerator compartment to discharge cold air along the left and right directions of the refrigerator compartment A side cold air duct; It characterized in that it comprises a duct fan to promote the flow of air introduced into the side cooling air duct. Thereby, the refrigerator provided with the duct fan which can smoothly supply cold air and reduce internal temperature variation is provided.

Description

Refrigerator with duct fan {REFRIGERATOR WITH DUCT FAN}

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 view showing the inside of a refrigerator having a duct fan according to an embodiment of the present invention;

6 is an enlarged view of the duct fan region of FIG. 5;

7 is a cross-sectional view taken along the line VII-VII of FIG. 6,

8 is a partially cutaway perspective view of a refrigerator having a duct fan according to another embodiment of the present invention;

9 is a perspective view of the duct fan area of the side cold air duct of FIG. 8;

10 is a cross-sectional view taken along the line VII-VII of the side cooling air duct of FIG. 9;

FIG. 11 is a control block diagram of a refrigerator provided with a duct fan of FIG. 8.

Explanation of symbols on the main parts of the drawings

11: refrigerator body 13: bulkhead

15: cold air inlet 21: freezer

31: refrigerator 35: home bar

41: upper cold air duct 51: side cold air duct

57: duct fan

The present invention relates to a refrigerator provided with a duct fan, and more particularly, to a refrigerator provided with a duct fan to facilitate the supply of cold air to reduce the internal temperature variation.

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 through 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 can 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 to be in communication with the cold air inlet 15, the partition wall 13 In the region corresponding to the opening of the refrigerating compartment 31, the side cooling air duct having a plurality of cold air discharging outlets 56a to 56c spaced apart from each other in the vertical direction to discharge cold air along the left and right directions of the refrigerating compartment 31 ( 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 is the front and bottom The cold air discharge port 44 is formed in each of them so as to discharge cold air forward and downward, respectively.

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 inlet 15 is opened, cold air is introduced from the freezing chamber through the cold air inlet 15, and a part of the cold air introduced into the upper cold air duct 41 is front. And through the cold air discharge port 44 formed in the bottom is discharged to the front and downward of the refrigerating chamber 31, 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 discharge port 44 of the upper cold duct 41, and thus it is difficult to reach the 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). Since the flow resistance of the internal cold air is increased, the front opening area of the refrigerating chamber 31 is insufficient in the amount of actual cold air discharged through each of the cold air outlets 56a to 56c of the side cold air duct 51 so that the temperature is easily increased. There is a problem.

In particular, the home bar 35, which frequently opens and closes frequently for storage and withdrawal, has a problem that the temperature is easily increased compared to the surroundings due to insufficient cooling.

Accordingly, an object of the present invention is to provide a refrigerator having a duct fan that can smoothly supply cold air and reduce an internal temperature variation.

According to the present invention, in the refrigerator having a refrigerator body in which a freezer compartment and a refrigerating compartment are formed with a partition wall formed along the up and down direction, the object is disposed to be buried inside one wall of the refrigerating compartment. The side is connected to receive the cold air from the freezing compartment in the rear region of the refrigerating compartment and the other side is extended to the front opening region of the refrigerating compartment and bent downwardly again to discharge cold air along the left and right directions of the refrigerating compartment Wow; It is achieved by a refrigerator having a duct fan, characterized in that it comprises a duct fan for promoting the flow of air introduced into the side cooling air duct.

Here, the duct fan preferably includes a cross flow fan.

Preferably, the duct fan includes a pair of first axial flow fans and a second axial flow fan.

Preferably, the side cold air duct is provided with a first cold air flow passage and a second cold air flow passage partitioned from each other so that cold air blown by the first axial flow fan and the second axial flow fan may flow, respectively.

One of the first cold air passage and the second cold air passage may be formed to provide cold air to the home bar formed in the refrigerating chamber door that opens and closes the refrigerating compartment.

It is preferable to further include a temperature sensor for detecting a temperature of the home bar region, and a control unit for controlling the first axial fan and the second axial fan so that cold air is supplied to the home bar region based on the detection result of the temperature sensor. .
The side cold air duct may be effectively buried in the partition wall.
One side is installed in the upper rear region of the refrigerating compartment in communication with the freezing compartment further comprises an upper cold duct for discharging the cold air provided from the freezing compartment to the refrigerating compartment, the inlet side of the side cold air duct is in communication with the upper cold duct Is preferably connected.

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

FIG. 5 is a view illustrating the inside of a refrigerator having a duct fan according to an embodiment of the present invention, FIG. 6 is an enlarged view of the duct fan area of FIG. 5, and FIG. 7 is a VII- 의 line of FIG. 6. According to the cross-sectional view. 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 drawings, the refrigerator having the duct fan includes a refrigerator main body 11 having a freezing chamber 21 and a refrigerating chamber 31 formed therebetween with partitions 13 arranged in the vertical direction; The upper cold air duct 41 is installed in communication with the freezing compartment 21 in the upper rear region of the refrigerating compartment 31 and discharges cold air forward and downward, and a cold air flow passage 53 is formed to allow cold air to flow therein. One side is embedded in the front region of the partition wall 13 to communicate with the upper cold air duct 41, the side cold air duct 51 for discharging the cold air, and arranged in the partition wall 13 to the inside of the side cold air duct 51 It is comprised including the duct fan 57 which promotes the flow of inflowing air.

The refrigerator door 33 is hinged to the edge of the front opening of the refrigerator compartment 31 so as to open and close the refrigerator compartment 31, and the plurality of door baskets spaced apart from each other along the vertical direction in the refrigerator compartment door 33 ( 37). The groove bar 35 is formed in the upper region of the refrigerating chamber door 33.

Meanwhile, as shown in FIG. 2, a circulation passage 24 is formed in the rear region of the freezing compartment 21 so that air can be circulated, and the circulation passage 24 may be heat-exchanged and cooled. An evaporator 25 is provided. Above the evaporator 25, a cooling fan 26 is arranged to facilitate heat exchange of the evaporator 25.

A cold air inlet 15 is formed in the upper rear region of the partition 13 to allow the cooled cold air to flow into the refrigerating chamber 31 while passing through the evaporator 25. In the lower rear region of the partition 13, FIG. As shown in FIG. 3, the suction port 16 is formed to allow the air in the refrigerating chamber 31 to be sucked into the circulation passage 24.

An upper cold air duct 41 is provided in the upper rear region of the refrigerating chamber 31 so as to communicate with the cold air inlet 15. The upper cold air duct 41 is formed to have a substantially rectangular parallelepiped shape, and as shown in FIG. 2, a cold air inlet hole 42 is formed to communicate with the cold air inlet 15. The cold air inflow hole 42 is provided with a damper 43 for opening and closing the cold air inflow hole 42 while rotating in the vertical direction, and the cold air discharge port 44 at the front and the bottom thereof so that cold air can be discharged forward and downward. Are formed respectively.

On the bottom side of the upper cold air duct 41, as shown in Figure 4, a predetermined length from the bottom surface so that some of the cold air introduced into the interior through the cold air inlet 15 can flow into the side cold air duct 51 An outflow passage 45 extending downward and bent toward the partition 13 is formed.

On the other hand, the side cooling air duct 51 connected to the outlet flow passage 45 in the partition 13 and extended so that cold air is discharged along the left and right directions of the refrigerating compartment 31 in the front region of the refrigerating compartment 31. ) Is purchased and installed.

The side cold air duct 51 includes a connecting portion 52a disposed along the thickness direction of the partition wall 13 so that the internal cold air passage communicates with the outflow passage 45, and an inclined section extending inclined downward from the connecting portion 52a. And a vertical section 52c extending from the inclined section 52b to be disposed along the vertical direction of the partition wall 13. In the vertical section 52c, a plurality of cold air discharge ports 56a to 56c are formed to be spaced apart from each other so as to discharge cold air with a height difference from each other along the vertical direction of the refrigerating chamber 31. Inside the connecting portion 52a, a duct fan 57 implemented in the form of a crossflow fan is installed to facilitate the flow of air introduced into the side cold air duct 51.

By this configuration, when the damper 43 is rotated so that the cold air inlet 42 is opened, the cold air passing through the evaporator 25 flows along the cold air inlet 15 to the upper cold air duct through the cold air inlet 42. It flows into the inside of 41. Some of the cold air introduced into the inside is discharged forward and downward through the cold air discharge ports 44 formed on the front and bottom surfaces, respectively.

On the other hand, the duct fan 57 is driven almost simultaneously with the rotation of the damper 43, so that the cold air inside the upper cold air duct 41 is quickly introduced into the side cold air duct 51 through the outflow passage 45 and It is flowed to be discharged through each cold air discharge port (56a ~ 56c) to facilitate the supply of cold air to the front region of the refrigerating chamber (31).

8 is a partially cutaway perspective view of a refrigerator having a duct fan according to another embodiment of the present invention, FIG. 9 is a perspective view of a duct fan area of the side cold air duct of FIG. 8, and FIG. 10 is a side cold air duct of FIG. 9. Is a cross-sectional view taken along the line VII-VII of FIG. 11, and FIG. 11 is a control block diagram of a refrigerator provided with a duct fan of FIG. As shown in these figures, the refrigerator having the duct fan includes a refrigerator body 11 having a freezer compartment 21 and a refrigerator compartment 31 with a partition 13 therebetween, and a refrigerator compartment 31. The upper cold air duct 41 is installed in communication with the freezing compartment 21 in the upper rear region, one side is in communication with the upper cold air duct 41 inside the partition 13, the other side is up and down in the front region of the refrigerating compartment 31. The side cold air duct 51 disposed along the direction and discharging cold air along the left and right directions of the refrigerating chamber 31, and the pair of first axial flow fans 58 disposed in the side cold air duct 51 to promote the flow of cold air. ) And a second axial flow fan (59).

The side cold air duct 51 has a connecting portion 52a connected to communicate with the upper cold air duct 41, an inclined section 52b extending obliquely from the connecting portion 52a, and a vertical direction of the partition wall 13. It is provided with the vertical section 52c arrange | positioned along.

Inside the side cold air duct 51, a first cold air is formed over the connecting portion 52a and the upper region of the inclined section 52b and the vertical section 52c to intensively supply the cold air to the groove bar 35. A second cold air flow passage 54b is formed so as to be partitioned from the first cold air flow passage 54a over the entire passage of the flow passage 54a, the connecting portion 52a, the inclined section 52b, and the vertical section 52c. have.

In each inlet region of the first cold air passage 54a and the second cold air passage 54b of the connection portion 52a, a first axial flow fan 58 and a second axial flow fan 59 are provided to facilitate the flow of cold air. The vertical section 52c has a first cold air outlet through which cold air flowed along the first cold air passage 54a is discharged, and a second through which cold air flowed along the second cold air passage 54b is discharged. And a third cold air discharge port are formed, respectively.

On the other hand, the control unit 61, which is implemented in the form of a microcomputer with a built-in control program, the temperature sensor to detect the temperature of the home bar 35 to control the first axial fan 58 and the second axial fan 59 Each of the 63 and the first axial flow fan 58 and the second axial flow fan 59 are electrically connected to each other.

By this configuration, when the damper 43 is rotated so that the cold air inlet 42 is opened, the cold air passing through the evaporator 25 flows along the cold air inlet 15 and the upper cold air through the cold air inlet 42. It flows into the inside of the duct 41. Some of the cold air introduced into the inside is discharged forward and downward through the cold air discharge ports 44 formed on the front and bottom surfaces, respectively. Some of the cold air introduced into the upper cold air duct 41 flows out along the outflow passage 45 and flows into the side cold air duct 51.

On the other hand, when the overall cooling of the front region of the refrigerating chamber 31 is required, the controller 61 allows the first axial flow fan 58 and the second axial flow fan 59 to be driven at the same time. To allow cold air to be supplied. If intensive cooling of the home bar 35 is required as a result of the temperature detection of the temperature sensor 63, the control unit 61 controls the second axial fan 59 to be stopped and only the first axial fan 58 is driven. By allowing the cool air of the upper cold air duct 41 to be concentrated and supplied to the home bar 35 along the first cold air flow path 54a, the home bar 35 is rapidly cooled.

As described above, according to the present invention, by providing the upper cold air duct and the side cold air duct, and the duct fan to promote the flow of air flowing into the side cold air duct, the cold air supply is smooth, thereby reducing the internal temperature variation. A refrigerator with a duct fan is provided.

Provided is a refrigerator provided with a duct fan that forms a first cold air passage and a second cold air passage separated from each other in the side cooling air duct, and any one of them discharges cold air to the home bar, thereby intensively cooling the home bar. .

Claims (8)

A refrigerator having a refrigerator main body having a freezer compartment and a refrigerating compartment formed with a partition wall formed along an up and down direction, It is arranged to be buried in the wall of one side of the refrigerating compartment and one side is connected to receive the cold air from the freezing compartment in the rear region of the refrigerating compartment and the other side is bent to extend downward again after extending to the front opening region of the refrigerating compartment A side cold air duct for discharging cold air along the left and right directions of the refrigerating chamber; And a duct fan for promoting a flow of air introduced into the side cooling air duct. The method of claim 1, The duct fan is a refrigerator having a duct fan, characterized in that it comprises a cross flow fan. The method of claim 1, The duct fan is a refrigerator having a duct fan, characterized in that it comprises a pair of first axial flow fan and the second axial flow fan. The method of claim 3, The side cold air duct is formed inside the duct characterized in that the first cold air flow passage and the second cold air flow passage partitioned to each other so that the cold air blown by the first axial flow fan and the second axial flow fan are respectively formed. Refrigerator with fan. The method of claim 4, wherein The refrigerator having a duct fan, wherein any one of the first cold air passage and the second cold air passage is formed to provide cold air to a home bar formed in the refrigerator compartment door that opens and closes the refrigerator compartment. The method of claim 5, And a controller configured to control the first axial fan and the second axial fan such that cold air is supplied to the home bar area based on a result of detecting the temperature sensor and a temperature sensor of the home bar area. Refrigerator with duct fan to make. The method according to any one of claims 1 to 6, The side cooling air duct is a refrigerator having a duct fan, characterized in that installed in the interior of the partition wall. The method of claim 7, wherein One side is installed in the upper rear region of the refrigerating compartment in communication with the freezing compartment further comprises an upper cold duct for discharging the cold air provided from the freezing compartment to the refrigerating compartment, the inlet side of the side cold air duct is in communication with the upper cold duct Refrigerator having a duct fan, characterized in that connected to.

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