KR100186452B1 - Concentration cooling device of refrigerator - Google Patents

Abstract

The present invention relates to a centralized cooling apparatus of a refrigerator. In the prior art, when high temperature load is put into a refrigerating chamber, cold air is supplied to the entire refrigerating chamber, thereby increasing power consumption.

In addition, when a high temperature load is put in the refrigerating chamber, in order to cool the high temperature load, there is a problem of supercooling the existing stable load because cold air is injected into the whole refrigerating chamber.

Therefore, in order to solve this problem, the present invention provides a cold air flow passage cylinder on one side of the freezer compartment of the refrigerator and selectively concentrates cold air on the shelves of the upper, middle and lower floors of the refrigerating chamber according to the rotation angle of the cold air flow passage cylinder. By supplying, it becomes intensive cooling by the whole refrigerator compartment or each compartment, and it is advantageous to power saving, and it can shorten load-response cooling time by intensive cooling of the left side or the right side of each compartment.

In addition, it is possible to prevent overcooling of the stable load in the same compartment by load-intensive intensive cooling, and to prevent overcooling of food by cold air blocking when the refrigerator compartment temperature is stabilized.

Description

Centralized cooling unit of the refrigerator

The present invention relates to a centralized cooling apparatus of a refrigerator, and more particularly, to a centralized cooling apparatus for forming a cold air outlet in a cold air flow path cylinder to smoothly supply cold air to the upper, middle and lower layers of a refrigerating chamber.

1 is a cross-sectional view showing the interior of the side structure of a conventional refrigerator, FIG. 2 is a front view showing a cold flow relationship of a freezer compartment of a conventional refrigerator, and FIG. 3 is a cross-sectional view showing a cold flow relationship of a freezer compartment of a conventional refrigerator. .

In general, as shown in FIG. 1, the refrigerator 1 includes a freezer compartment 2 for freezing and storing food or freezing ice, and a refrigerating compartment 3 for freezing and storing food freshly. There is a machine chamber 5 in which a refrigerant compressor 4, a condenser (not shown), and the like are provided for forming and supplying cold air to the freezing chamber 2 and the refrigerating chamber 3.

In particular, the multi-duct structure of the conventional refrigerator according to the present invention includes an evaporator 6 which is installed on the rear surface of the freezer compartment 2 with reference to FIG. 1 to absorb ambient heat to form cold air, and the evaporator 6. The circulation fan 7 and the circulation fan motor 8 installed at the upper side of the circulation fan for flowing the cold air formed in the evaporator 6 to the inside are installed, and the grill 9 is installed directly in front of the circulation fan 7. The grill 9 is provided with a discharge port (not shown) and a suction port (not shown).

It is configured to supply the cold air heat exchanged from the refrigerant compressor (4) to the freezer compartment (2) and the refrigerating compartment (3), and the main cold air flow passage (10) is penetrated so that the cold air of the freezer compartment (2) can be supplied to the refrigerating compartment (3). It is.

A tracking cooling louver 11 is installed in the upper layer 3-1 of the main cold air passage 10, and shelves 13 and 14 are installed in the middle layer 3-2 and the lower layer 3-3. The cold air showered and ejected cold air has a configuration in which the circulating cold air passage 15 is installed on the side of the main cold air passage 10 so that the cold air can be recovered to the evaporator 6 by the circulation fan 7.

In addition, the main cold air passage 10 has a configuration that is always open to a constant size so that cold air can be supplied to the upper layer (3-1), the middle layer (3-2), the lower layer (3-3). In the drawing, reference numeral 12 denotes an upper shelf.

The cold air circulation structure of the conventional refrigerator configured as described above, with reference to FIG. 1, when the power is applied, the refrigerant compressor 4 and the circulation fan 7 are turned on to operate the refrigeration cycle.

The temperature of the surface of the evaporator 6 attached to the freezer compartment 2 is reduced by the operation of the refrigeration cycle, and low temperature cold air is discharged from the evaporator 6 by the circulation fan 7 installed on the evaporator 6. And to the refrigerating chamber (3).

At this time, when the refrigerating chamber 3 reaches the set temperature, the refrigerant compressor 4 and the circulation fan 7 stop operation, and at the same time, the refrigeration cycle is stopped, and this operation occurs repeatedly while the power is on.

In addition, a part of the cold air supplied from the evaporator 6 to the refrigerating chamber 3 through the main cold air passage 10 is supplied to the tracking cooling louver 11 of the upper layer 3-1, and the middle layer 3-2 and The lower floor 3-3 is cold air showered through the shelves 13 and 14, wherein the cold air is simultaneously supplied to the upper, middle and lower floors of the refrigerating chamber 3.

In addition, the cold air supplied to the tracking cooling louver 11 of the upper layer 3-1 is supplied to the left and right sides of the upper layer 3-1 by the operation of the tracking cooling louver 11, and thus the entire refrigerating chamber 3 The cold air supplied thereto is recovered by the suction of the circulation fan 7 to the evaporator 6 through the circulation cold air flow passage 15.

However, when a high temperature load is put into the conventional refrigerating compartment, since the cold air is supplied to the entire refrigerating compartment, power consumption increases.

In addition, when a high temperature load is put into the refrigerating chamber, in order to cool the high temperature load, cold air is injected into the entire refrigerating chamber, thereby causing a problem of overcooling the existing stable load.

Accordingly, an object of the present invention is to provide a centralized cooling apparatus for a refrigerator to selectively supply cold air to each floor by forming a cold air outlet in a cold air flow path cylinder to smoothly supply cold air to upper, middle and lower floors of the refrigerating chamber. have.

1 is a cross-sectional view showing the inside of a side structure of a conventional refrigerator and showing a cold air flow relationship.

2 is a cross-sectional view showing the interior of the side structure of the refrigerator of the present invention, showing a cold air flow relationship.

3 is a perspective view showing a cold air ejection for each floor in the refrigerator of the present invention.

Figure 4 is a cross-sectional view showing the shape of each angle of the cold air flow path cylinder of the present invention.

5 (a) to 5 (c) is an embodiment of the present invention, showing an open state diagram for each angle of the lower layer of the cold air flow passage cylinder,

Figure 5 (a) is a plan view showing a state in which the left and right sides are opened in the 90 degree position of the cold air flow path cylinder.

5 (b) is a plan view showing a state in which the right side is opened in the 120 degree position of the cold air flow path cylinder.

Figure 5 (c) is a plan view showing a state in which the left side is opened at the 60-degree position of the cold air flow path cylinder.

6 is a plan view showing the left (60 degrees) concentrated cooling state of the cold air flow path cylinder of the present invention.

7 is an open state for each angle of the cold air flow path cylinder of the present invention.

* Explanation of symbols for main parts of the drawings

20: refrigeration degree 21: freezer

22: refrigerator 22-2: upper floor

22-2: Middle layer 22-3: Lower layer

28: cold air flow cylinder 28-1: cold air outlet

28-2: Middle cold air outlet 28-3: Upper cold air outlet

28-4, 28-5: All cold air outlet 29: Synchro motor

31: Upper lathe 32: Laminated lathe

33: lower shelf 34: sealing material

35: cold air flow path 36: cold air duct

37: cold air discharge hole 38: cold air blocking wall

In order to achieve the object of the present invention, a cold air flow passage cylinder is installed on one side of the refrigerator compartment of the refrigerator, and concentrated cold air is selectively supplied to the upper, middle and lower shelves of the refrigerator compartment according to the rotation angle of the cold air flow passage cylinder. A centralized cooling device for a refrigerator is provided.

The lower side of the cold air flow passage cylinder is provided with a synchro motor that can control the cold air discharge direction and the discharge position for each floor.

The cold air flow path cylinder is formed in the lower cold air outlet at 90 degrees, the middle cold air outlet at 180 degrees, and the upper cold air outlet at 270 degrees, and the 30 degrees and 330 degrees positions the cross-sectional area of the lower cold air outlet at the 90 degrees. Cold discharge outlets corresponding to 1/2 are formed in the upper, middle, and lower layers, respectively.

The cold air flow path cylinder is formed inside the cold air flow path case, and sealing water is formed on both sides of the cold air discharge port to prevent leakage of cold air.

The cold air ducts of the upper, middle and lower shelves are formed with a plurality of cold air outlets for discharging cold air at regular intervals, and the cold air ducts having left and right non-penetrating structures are installed at the centers of the cold air ducts of the upper, middle and lower layers.

Hereinafter, the centralized cooling apparatus of the refrigerator according to the present invention will be described according to the embodiment shown in the accompanying drawings.

2 is a cross-sectional view showing the inside of the side structure of the refrigerator of the present invention, a cross-sectional view showing a cold flow relationship, FIG. 3 is a perspective view showing a cold air ejection for each layer in the refrigerator of the present invention, and FIG. 4 is a cold air of the present invention. 6 is a plan view showing the left (60 degrees) intensive cooling state of the cold air flow path cylinder of the present invention, Figure 7 is a view showing the open state by angle of the cold air flow path cylinder of the present invention will be.

As shown in the drawing, in the centralized cooling apparatus of the refrigerator according to the present invention, the refrigerator 20 in FIG. 2 includes a freezer compartment 21 capable of freezing and freezing food or freezing ice, and further refrigerated storage of food freshly. There is a refrigerating chamber 22, and there is a mechanical chamber 24 is provided with a refrigerant compressor 23, a condenser (not shown) and the like for forming and supplying cold air to the freezing chamber 21 and the refrigerating chamber 22.

An evaporator 25 installed at a rear surface of the freezing chamber 21 to absorb ambient heat to form cold air, and a circulation fan installed at an upper side of the evaporator 25 to flow cold air formed in the evaporator 25 to the inside. 26 and a circulation fan motor 26-1 are installed, and a grill 27 is installed directly in front of the circulation fan 26, and the grill is provided with a discharge port (not shown) and a suction port (not shown). have.

In order to supply the cold air of the freezing chamber 21 to the refrigerating chamber 22, a cold air flow passage cylinder 28 having a cylindrical shape of the main cold air passage is installed, and the sink air motor 29 from the lower side of the cold air flow passage cylinder 28. It is configured to control the rotation angle and constitutes a circulating cold air flow path 30 on the side of the cold air flow path cylinder (28).

In FIG. 3, a power transmission synchro motor 29 is installed below the cold air flow passage 28 to rotate the cold air flow passage 28 to control the discharge position of the cold air.

In FIG. 4, the cold air flow path cylinder 28 has cold air outlets formed at angles on the circumferential surface of the cylinder. There is no cold air outlet at the position of 0 degrees, and the upper layer 22-1 and the middle layer 22- at the positions of 330 degrees and 30 degrees. 2), each cold air outlet is formed at the cold air flow inlet position of each of the shelves 31, 32, and 33 of the lower layer 22-3, and the lower cold air discharge outlet coincides with the lower shelf 33 at a 90 degree position. (28-1) is formed, and the middle cold air outlet 28-2 is formed at the position of 180 degrees coinciding with the middle lathe 32, and the upper cold air outlet is coincident with the upper shelf 31 at the 270 degree position. (28-3) is comprised.

The cross-sectional area of each of the cold air discharge ports 28-4 at the 330 degree and the 30 degree positions is formed to 1/2 of the cross-sectional area of the lower cold air discharge port 28-1 at the 90 degree position.

5 (a) to 5 (c) is an embodiment of the present invention, showing an open state diagram for each angle of the lower layer of the cold air flow path cylinder, the cold air in the fifth (a) to 5 (c) The cold air sealing material 34 which prevents leakage of cold air is attached to both sides of the cold air discharge port 28-1 of the flow path cylinder 28, and has the structure installed in the cold air flow path case 35. As shown in FIG.

5 (a) is a configuration in which cold air is intensively supplied left and right to the lower cold air duct 36 at a 90 degree position of the cold air flow path cylinder 28, and FIG. 5 (b) is a view of the cold air flow path cylinder 28 Concentrates to supply the cold air to the lower cold air duct 36 to the right at the 120-degree position, the fifth (c) is intensively leftward to the lower cold air duct 36 at the 60-degree position of the cold air flow passage (28) It is the configuration that supplied cold air.

In FIG. 6, a plurality of cold air discharge holes 37 for discharging cold air into the cold air ducts 36 of the upper, middle, and lower layers are formed at regular intervals, and left at the center of the cold air ducts 36 of the upper, middle, and lower layers. The cold air barrier wall 38 having the right non-penetrating structure is installed.

Referring to the effect of the centralized cooling device of the refrigerator according to the present invention configured as described above are as follows.

In FIG. 2, cold air is supplied from the evaporator 25 to the refrigerating chamber 22 through the cold air flow passage 28 by the circulation fan 26 of the freezing chamber 21. In the embodiment and the cold air flow passage cylinder 28 at 90 degrees, the cold air flow passage 28-1 of the cold air flow passage 28 is coincided with the center of the lower shelf 33 so that the cold air flows to the left side of the lower shelf 33. It discharges to the whole of the right side, and concentrates cooling of a lower layer.

In the case of 60 degrees, the lower cold air outlet 28-1 of the cold air flow path cylinder 28 coincides with the left side of the lower shelf 33 so that cool air is discharged only to the left side of the lower shelf 33 so that the left side of the lower layer 22-3 is left. Intensive cooling.

In the case of 120 degrees, the lower cold air outlet 28-1 of the cold air flow path cylinder 28 coincides with the right side of the lower shelf 33 so that cool air is discharged only to the right of the lower shelf 33 so that the right side of the lower layer 22-3 is It has an operation configuration for intensive cooling.

7 is a view showing the open state of the cold air flow cylinder by angle of the present invention. Referring to FIGS. 2, 4, and 7, when the cold air flow cylinder 28 is 0 degrees, the upper, middle, and lower lathes ( The cold air inlets of the 31, 32 and 33 are closed to block the cold air from being supplied to the refrigerating chamber 22, and the cold air is concentrated only in the freezing chamber 21.

In the case of 30 degrees, the cold air outlet 28-4 of the cold air flow path cylinder 28 coincides with the right cold air inlet of the upper, middle, and lower lathes 31, 32, 33. In the case of 330 degrees, the cold air flow passage 28-5 of the cold air flow path cylinder 28 matches the cold air inlets on the left side of the upper, middle, and lower lathes 31, 32, 33. The left side of (22) is concentrated-cooled.

In the case of 180 degrees, the cold air flow passage 28-2 of the cold air flow passage 28 coincides with the center of the middle shelf 32 so that cool air is discharged to the entire left and right sides of the middle shelf 32 so that the middle layer 22- Cool down 2).

In the case of 150 degrees, the cold air flow passage 28-2 of the cold air flow passage 28 coincides with the left side of the middle shelf 32 so that cool air is discharged only to the left side of the middle shelf 32 so that the left side of the middle layer 22-2 is left. Cool it down.

In the case of 210 degrees, the cold air flow passage 28-2 of the cold air flow passage 28 coincides with the right side of the middle shelf 32 so that cool air is discharged only to the right side of the middle shelf 32 so that the right side of the middle layer 22-2 is discharged. Cool it down.

In the case of 270 degrees, the upper cold air outlet 28-3 of the cold air flow passage 28 coincides with the center of the upper shelf 31 so that cool air is discharged to the entire left and right sides of the upper shelf 31 so that the upper layer 22- Intensive cooling of 1).

In the case of 240 degrees, the upper cold air outlet 28-3 of the cold air flow passage 28 coincides with the left side of the upper shelf 31 so that cool air is discharged only to the left side of the upper shelf 31 so that the left side of the upper layer 22-1 Cool it down.

In the case of 300 degrees, the upper cold air outlet 28-3 of the cold air flow passage 28 coincides with the right side of the upper shelf 31 so that cool air is discharged only to the right side of the upper shelf 31 so that the right side of the upper layer 22-1 Cool it down.

As described above, in the centralized cooling apparatus of the refrigerator according to the present invention, a cold air flow passage cylinder is installed on one side of the freezer compartment of the refrigerator and sorted on the upper, middle and lower shelves of the refrigerator compartment according to the rotation angle of the cold air flow passage cylinder. By supplying cold air, the centralized cooling of the entire refrigerating compartment or each compartment can be selectively selected, which is advantageous for power saving, and the cooling time corresponding to the load can be shortened by the centralized cooling of the left or right side of each compartment of the refrigerating compartment.

In addition, it is possible to prevent the overcooling of the stable load in the same compartment by the load-intensive intensive cooling, and to prevent the overcooling of food by cold air blocking when the refrigerator compartment temperature is stabilized.

Claims (5)

The centralized cooling apparatus of the refrigerator, characterized by installing a cold air flow passage cylinder on one side of the refrigerator compartment of the refrigerator and selectively supplying cold air to shelves in the upper, middle, and lower layers of the refrigerator compartment according to the rotation angle of the cold air flow passage cylinder. The centralized cooling apparatus of a refrigerator according to claim 1, wherein a synchro motor capable of controlling a cold air discharging direction and a discharge position of each floor is provided below the cold air flow passage cylinder. The cold air flow path cylinder of claim 1, wherein the cold air flow outlet is formed at a 90 degree position, a lower cool air outlet at a 180 degree position, and an upper cool air outlet at a 270 degree position, and a 90 degree position at a 30 degree and a 330 degree position. The central cooling apparatus of the refrigerator, characterized in that the total cold air outlet corresponding to 1/2 of the cross-sectional area of the cold air outlet of the lower layer is formed in the upper layer, the middle layer, and the lower layer, respectively. The centralized cooling apparatus of claim 1, wherein a shape of the cold air flow path cylinder is formed in a cylindrical shape, and a sealing material is formed on both sides of the cold air discharge port to prevent leakage of cold air, while being formed inside the cold air flow path case. . According to claim 1, wherein the plurality of cold air discharge holes for discharging the cold air in the cold air duct of the upper, middle and lower shelves are formed at regular intervals, the left and right of the non-penetrating structure in the center of the cold air duct of the upper, middle and lower layers A concentrated cooling apparatus of a refrigerator, characterized by installing a cold air blocking wall.