KR0117032Y1 - Cool air supply appaatus of a refrigerator - Google Patents

Abstract

The present invention relates to a cold air supply device of a refrigerator that can vary the amount of cold air and the direction of cold air supplied to a refrigerator compartment of a refrigerator, the refrigerator main body, a cooler generating cold air, and supplying cold air generated from the cooler to the refrigerator main body. In the cold air supply device of the refrigerator having a branch duct installed in the longitudinal direction adjacent to the refrigerating chamber by branching from the cold air supply duct and the cold air supply duct so that the branch duct is a rotary damper (65) in which part of the cylinder is removed along the longitudinal direction (65). ), An eccentric shaft member 63 which eccentrically rotates and supports the rotary damper 65 freely is connected to the motor 67. As the rotary damper 65 rotates, the cold air passage in the branch duct is rotated. It is characterized by the fact that the area changes directly, and because it is configured in this way, it is possible to control the temperature in the refrigerating chamber, Distribution to be able to even out the temperature distribution in the refrigerating room can satisfactorily refrigerate the food placed in the refrigerator compartment.

Description

Refrigeration air supply unit

1 is a side cross-sectional view showing a conventional refrigerator,

2 is an elevational view showing the inside front of a conventional refrigerator,

3 is a side cross-sectional view showing a refrigerator having a cold air supply device according to an embodiment of the present invention,

Figure 4 is an elevation view showing the inside of the refrigerator having a cold air supply apparatus according to an embodiment of the present invention,

5 is a cross-sectional view along the arrow A-A in FIG. 4,

6 is a perspective view showing the rotary damper means of FIG.

7 and 8 are operation state diagrams of the cold air supply apparatus of the refrigerator according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

1: refrigerator body 3: freezer

5: cold storage room 7: vegetable room

17: first cold air supply doctor 25: damper

51: first quarter doctor 53a, 53b: second quarter doctor

55a, 55b: second cold air outlet 57a, 57b: opening

60: rotation damper means 61: guide member

63: eccentric shaft member 65: rotary damper

67 motor

The present invention relates to a cold air supply device of the refrigerator that can vary the amount of cold air supplied in the refrigerator and the direction of cold air.

In the conventional refrigerator, as illustrated in FIG. 1, a freezer compartment 3 is formed at an upper portion of the refrigerator main body 1, a refrigerator compartment 5 is formed at an intermediate portion of the refrigerator main body 1, and a refrigerator main body is formed. The vegetable chamber 7 is formed in the lower part of (1). And the freezing door 9 is arrange | positioned at the left side of the freezer compartment 3, and the refrigerating door 11 is arrange | positioned at the left side of the refrigerator compartment 5 and the vegetable compartment 7.

On the right side of the freezer compartment 3, the cooler 15 is disposed with the first plate member 13 interposed to cool air circulating in the freezer compartment 3, the refrigerating compartment 5, and the vegetable compartment 7. On the upper side of the cooler 15, the cool air generated from the cooler 15 is discharged from the first cold air discharge port 16, circulated to the freezer compartment 3, and at the same time through the first cold air supply duct 17. A fan 21 driven by the motor 19 is arranged to circulate in the refrigerating chamber 5 and the vegetable chamber 7. The first cold air supply duct 17 is disposed on the right side of the cooler 15. In addition, a suction port 131 is formed at a lower portion of the first plate member 13 so that the air of the freezing chamber 3 is sucked into the cooler 15.

On the right side of the refrigerating chamber 5, a second cold air supply duct 23 is arranged to supply the cold air supplied from the first cold air supply duct 17 to the refrigerating chamber 5 and the vegetable chamber 7. As shown in FIG. 2, the second cold air supply duct 23 is disposed in the center of the refrigerating chamber 5 in the vertical direction.

Above the second cold air supply duct 23 is provided a damper 25 driven by driving means (not shown) to adjust the amount of cold air flowing in the second cold air supply duct 23, the second On the left side of the cold air supply duct 23, a plurality of second cold air discharge ports 27 extend in the longitudinal direction of the second cold air supply duct 23 so that cold air having passed through the damper 25 is supplied to the refrigerating chamber 5. Is formed, and an opening 29 is formed in the lower portion of the second cold air supply duct 23 so that the cold air is supplied to the vegetable chamber 7.

In the refrigerating compartment 5, a plurality of shelves 31 are arranged in a Kankan manner for placing food to be refrigerated, and a vegetable container 33 is disposed in the vegetable compartment 7 to hold vegetables. The first return passage 351 is provided at an upper portion of the partition member 35 partitioning the freezing compartment 3 and the refrigerating compartment 5 so that air circulated in the freezing compartment 3 returns to the cooler 15. A second return passage 353 is formed at a lower portion of the partition member 35 so that air circulated in the refrigerating chamber 5 and the vegetable chamber 7 is returned to the cooler 15.

After placing the food to be frozen or refrigerated in the conventional refrigerator configured as described above, by operating control means (not shown) to set the freezing or refrigerating conditions and closing the freezing door 9 and the refrigerating door 11, The refrigerant is circulated in the cooler 15 by the operation of a refrigeration cycle (not shown), and the motor 19 operates. The fan 21 rotates by the operation of the motor 19, and the air inside the refrigerator circulates inside the refrigerator by the rotation of the fan 21.

That is, the air passing through the cooler 15 from the lower part of the cooler 15 is converted into cold by the cooler 15, and passes through the first cold air discharge port 16 in the upper part of the freezer compartment 3 to the freezer compartment 3. Discharged. The cold air discharged into the freezer compartment 3 is changed to warm air while freezing the food placed in the freezer compartment 3. The warm air is sucked into the cooler 15 through the first return passage 351 formed in the partition member 35 and the suction port 131 disposed in the lower portion of the first plate member 13.

In this way, the food placed in the freezer compartment 3 is frozen by the air circulating in the freezer compartment 3.

Meanwhile, a part of the cold air passing through the cooler 15 passes through the first cold air supply duct 17 and then passes through the second cold air supply duct 23, and passes through the plurality of second cold air discharge ports 27. ) And flows into the vegetable chamber 7 through the opening 29 of the second cold air supply duct 23. The cold air discharged into the refrigerating compartment 5 cools the food placed on the shelf 31 of the refrigerating compartment 5, and the cold air introduced into the vegetable compartment 7 enters the vegetable container 33 of the vegetable compartment 7. After cooling the stored vegetables and the like flows into the refrigerating chamber (5). The cold air is changed into warm air while the food or vegetables placed in the refrigerator compartment 5 and the vegetable compartment 7 are cooled, and the warm air is transferred to the cooler 15 through a second return passage 353 formed in the partition member 35. Inhaled). At this time, the refrigerating temperature of the refrigerating chamber 5 and the vegetable chamber 7 is driven by a driving means (not shown) driving the damper 25 disposed on the upper portion of the second cold air supply duct 23. It sets suitably by adjusting the quantity of cold air which flows into (23).

In this way, the food placed in the refrigerator compartment 5 and the vegetable compartment 7 is refrigerated at an appropriate temperature by the air circulating in the refrigerator compartment 5 and the vegetable compartment 7.

However, in the conventional refrigerator configured as described above, a certain amount of cold air is always provided through the second cold air discharge port 27 formed on the left side of the second cold air supply duct 23 disposed on the right side of the refrigerating chamber 5 of the first drawing. Since it is discharged to the refrigerating chamber 5 in a constant direction, the cold air is not uniformly distributed over the entire portion of the refrigerating chamber 5. In addition, since the second cold air supply duct 23 disposed on the right side of the refrigerating chamber 5 of FIG. 1 is disposed up and down only in the center of the refrigerating chamber 5 when viewed from the second figure, the second cold air supply duct 23 The cold air discharged to the refrigerating chamber 5 through the second cold air discharging opening 27 formed on the left side of the) is not uniform in temperature distribution over the entire part of the refrigerating chamber 5, Since the proper refrigeration temperature is not maintained, there is a problem that the food placed in the corner is decayed in a short time.

Therefore, the present invention has been made to solve the above problems, the object of the present invention is to control the temperature and the direction of the cold air supplied to the refrigerating chamber, while controlling the temperature in the refrigerating chamber and at the same time distribute the cold air in the refrigerating chamber to be refrigerated It is to provide a cold air supply device of the refrigerator to uniform the temperature distribution in the room.

The cold air supply device of the refrigerator according to the present invention made to achieve the above object is a refrigerator main body, a cooler for generating cold air, and branched from the cold air supply doctor and the cold air supply doctor to supply the cold air generated from the cooler to the refrigerator body In the cold air supply device for a refrigerator provided with a branch duct adjacent to the refrigerating chamber in the longitudinal direction, the branch duct is provided with an elliptical cross-sectional rotary damper in which a part of the cylinder is removed along the longitudinal direction, the rotary damper An eccentric shaft member for supporting the eccentric rotation freely is connected to the motor, and the cold air passage area in the branch duct changes directly as the rotary damper rotates.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In addition, the same code | symbol is attached | subjected about the part same as the part shown in FIG. 1, and FIG. 2, and the overlapping description is abbreviate | omitted.

As shown in FIG. 3, the left and right edges of the refrigerating compartment 5 in FIGS. 4 and 5 are provided in the up and down direction of the refrigerating compartment 5 to supply the cool air to the refrigerating compartment 5 and the vegetable compartment 7. Two branched ducts 53a and 53b are disposed, and the cold air supplied from the first cold air supply duct 17 is sorted on the second branched ducts 53a and 53b at the upper portion of the refrigerating chamber 5. The first branch duct 51 is disposed.

On the left side of the second branch ducts 53a and 53b, the second branch ducts 53a and 53b may be supplied to the refrigerating chamber 5 through the first branch duct 51 through the cold air passing through the damper 25. A plurality of second cold air discharge outlets 55a and 55b are formed respectively in the longitudinal direction of 53b), and an opening 57a is provided in the lower portion of the second branch ducts 53a and 53b so that the cold air is supplied to the vegetable chamber 7. , 57b) are formed, respectively.

Further, on the left side of the second branch ducts 53a and 53b, the rotary damper means 60 has a longitudinal direction of the second branch ducts 53a and 53b so as to vary the discharge direction of the cold air discharged in the refrigerating chamber 5, respectively. It is arrange | positioned by the fastening means which is not shown in figure, respectively.

As shown in FIG. 6, the rotary damper means 60 has a box-shaped guide member 61 through which left and right sides pass through the guide member 61 to serve as a flow path for guiding cold air supplied to the refrigerating chamber 5, and the guide member ( Eccentric shaft member 63 is supported and rotated on the upper and lower surfaces of the 61 and the elliptical cross-section-shaped long bar disposed on the eccentric shaft member 63 to rotate the eccentric shaft member 63 eccentrically to the rotation center axis Rotation damper 65 and the motor 67 disposed below the guide member 61 to rotate the rotary damper 65 by the eccentric shaft member 63 as a medium.

The operation and effects of the cold air supply device of the refrigerator according to the embodiment of the present invention configured as described above will be described below.

When the refrigerator is operated by operating control means (not shown), the amount of cold air flowing into the refrigerating chamber 5 and the vegetable chamber 7 from the first cold air supply doctor 17 is adjusted by the damper 25, and the damper ( The cold air passing through 25) is classified into left and right sides of the refrigerating chamber 5 of FIG. 4 through the first branch duct 51 and flows into the second branch ducts 53a and 53b, respectively. At this time, the motor 67 of the rotary damper means 60 respectively disposed in the second branch ducts 53a and 53b is rotated, and rotates by using the eccentric shaft member 63 as a medium by the rotation of the motor 67. Since the damper 65 is rotated, various cold air passages are formed between the guide member 61 and the rotary damper 65 as shown in FIGS. 7 and 8. The cold air introduced into the second branch ducts 53a and 53b is sequentially passed through the various cold air passages and the second cold air discharge ports 55a and 55b and discharged to the refrigerating chamber 5 in various directions.

Therefore, since the cold air is evenly distributed in the refrigerating chamber 5 by the rotary damper means 60 disposed at both edges of the refrigerating chamber 5, the temperature distribution is uniformly distributed throughout the refrigerating chamber 5. It is possible to effectively refrigerated food placed in the).

In addition, if necessary, by controlling the motor 67 with a control means (not shown), the rotary damper 65 is maintained at a constant rotational position to control the amount of cool air discharged to the refrigerating compartment or to keep the cool air always in a constant direction. It may be discharged to (5).

In addition, since the rotary damper 65 of the rotary damper means 60 is directly rotated by the motor 67 to adjust the cold air passage, the structure is simple and the opening and closing operation is assured.

On the other hand, a predetermined amount of cold air introduced into the second branch ducts 53a and 53b is respectively stored in the vegetable chamber 7 through passages in the second branch ducts 53a and 53b which are not blocked by the rotary damper 65. The vegetables are introduced and refrigerated in the vegetable chamber (7).

As described above, the cold air supply device of the refrigerator according to the present invention is configured to directly change the amount of cold air and the direction of cold air supplied to the refrigerating chamber by the rotary damper while simultaneously arranging both side ducts of the refrigerating chamber. Controlling and at the same time, the cold air is uniformly distributed in the refrigerating chamber to uniformly distribute the temperature in the refrigerating chamber, and thus the food placed in the refrigerating chamber is well refrigerated.

Claims (1)

Cold air supply of a refrigerator having a refrigerator main body, a cooler generating cold air, and a branched duct provided in a lengthwise direction adjacent to a refrigerating chamber branched from a cold air supply duct and a cold air supply duct to supply cold air generated from the cooler to the refrigerator main body. In the apparatus, the branch duct is provided with a rotary damper (65) in which part of the cylinder is removed along the longitudinal direction, and the eccentric shaft member (63) for eccentrically supporting the rotary damper (65) is freely supported by the motor (67). And a cold air passage area of the branch duct is directly changed as the rotary damper (65) rotates.