KR100451342B1 - Apparatus for supply cool air of refrigerator - Google Patents

Abstract

The present invention relates to a cold air supply device for a refrigerator, comprising: a main body divided into a freezer compartment for freezing food and a refrigerating compartment for freezing food by a spacer, a cooling device for generating cold air for cooling the inside of the main body, and the main body. A blower fan mounted at a predetermined portion of the inside to generate a flow of cold air generated in the cooling device, and formed at a front surface of the upper side of the refrigerating chamber to guide cold air to an upper discharge port through which cold air generated by the cooling device is discharged. At least one upper duct, at least one left duct formed at the front side of the left side of the refrigerating compartment to guide the cold air to the left discharge port through which the cold air generated by the cooling device is discharged, and at least one formed at the front side of the right side of the refrigerating compartment. A right duct for guiding the cold air to the right discharge port through which the cold air generated by the cooling device is discharged; And a vegetable chamber formed at a lower side of the refrigerator compartment, and a suction duct in which cold air supplied to the refrigerator compartment is sucked through the suction path through the outer wall of the vegetable compartment and flows to the cooling device, thereby being evenly distributed in the refrigerator compartment of the refrigerator. By supplying cold air, the temperature distribution is evened to increase the cooling efficiency and to indirectly cool the vegetable compartment.

Description

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

The present invention relates to a cold air supply device for a refrigerator, and in more detail, cold air is uniformly supplied to the refrigerating compartment to perform cooling in the inside and indirect cooling of the vegetable compartment, and to form a cold air film with the discharged cold to form a cold air leak when the refrigerating compartment is opened. It relates to a cold air supply of the refrigerator that can reduce the.

In general, the refrigerator is divided into a freezer compartment for storing ice-making containers and frozen foods at a set temperature, and a refrigerating compartment in which refrigeration objects are stored, and a refrigeration cycle device is installed therein to circulate the refrigeration cycle of compression, condensation, expansion, and evaporation. The evaporator in the circulation circuit absorbs the heat from the outside to keep the inside frozen and refrigerated.

Referring to the accompanying drawings, a structure and a cold air supply process for supplying cold air to the refrigerating chamber in the conventional refrigerator are as follows.

1 is a front view illustrating an internal structure of a conventional refrigerator, and FIG. 2 is a side view illustrating an internal structure of the refrigerator of FIG. 1, and as shown in FIGS. 1 and 2, the refrigerator is mounted at a predetermined portion of the main body 1. It is divided into a freezer compartment 10 and a refrigerating compartment 20 by the spacer 16, and looks at the cold air supply structure, a portion of the cold air cooled by heat exchange in the evaporator 3 through which the low temperature low pressure refrigerant passes through It is forcedly blown by the blower fan 13 and supplied to the freezing chamber 10 through the shroud 14, and a part of the remaining cold air is freely dropped through the shroud 14 so that the first duct 15 Guide to the refrigerating compartment 20 side through).

The cold air supply to the refrigerating chamber 20 is formed in the longitudinal direction at the rear of the main body 1, while the cold air falls freely through the first duct 15 connecting the shroud 14 and the refrigerating chamber 20. It is configured to be supplied to the refrigerating chamber 20 through a plurality of first discharge ports 15a formed on the front surface of the first duct 15.

The cold air supplied to the freezing compartment 10 and the refrigerating compartment 20 through such a process cools the food loaded therein, and then evaporates again through the return duct 16a formed in the spacer 16. 3) It is reintroduced to the vicinity and recooled.

However, in the conventional refrigerator as described above, the food stored around the first discharge port 15a of the refrigerating chamber 20 is in direct contact with the low temperature cold and may cause cold damage. It may also result.

On the contrary, the food located far from the first discharge port 15a is not properly cooled.

In addition, when the refrigerating compartment is opened, there is a problem that the cooling efficiency is lowered due to the loss of cold air due to the outflow of cold air and a non-uniform temperature distribution generated by not uniformly supplying the cold air into the refrigerating compartment of the refrigerator.

An object of the present invention devised in view of the above point is to supply cold air evenly to the refrigerating compartment, to indirectly cool the vegetable compartment formed in the refrigerating compartment, and to flow out of the refrigerating compartment when the refrigerating compartment is opened by the cold air discharged to the refrigerating compartment. It is to provide a cold air supply device of the refrigerator that can reduce the cold air to increase the cooling efficiency.

1 is a front view showing the internal structure of a conventional refrigerator,

Figure 2 is a side view showing the internal structure of the refrigerator of Figure 1

3 is a front view of a refrigerator equipped with a cold air supply device according to an embodiment of the present invention;

Figure 4 is a plan view showing a cross-sectional view of the A-A portion of the refrigerator of Figure 3,

FIG. 5 is a side view illustrating the B-B part of FIG. 3 in cross section. FIG.

** Explanation of symbols for main parts of drawings **

1: body 2: cooling chamber

3: evaporator 10: freezer

11: freezer door 12: grill

12a: discharge port 13: blower fan

14: shroud 16: spacer

20: refrigerating chamber 20a: upper side

20b: left side 20c: right side

21: refrigerator door 22: shelf

23: upper duct 23a: upper discharge port

24: Left duct 24a: Left discharge port

25: right duct 25a: right discharge outlet

26: by suction 27: suction duct

28: vegetable room

As described above, the refrigerator's cold air supply device for achieving the object of the present invention comprises a main body partitioned into a freezer compartment for freezing food and a cold compartment for storing food by a spacer, and generating cold air for cooling the inside of the main body. A cooling device, a blower fan mounted at a predetermined portion inside the main body to generate a flow of cold air generated in the cooling device, and formed at a front surface of the upper side of the refrigerating chamber to discharge cold air generated by the cooling device. At least one upper duct formed in the spacer member to guide the cool air to the upper discharge port, and at least one of the upper duct formed in a predetermined arrangement on the front side of the left side surface of the refrigerating chamber to guide the cool air to the left discharge port where the cool air generated by the cooling device is discharged. A left duct formed through the inside of the left side of the refrigerating compartment and a front surface of the right side of the refrigerating compartment At least one side is formed in a predetermined arrangement on the side to form the right duct via the inside of the right side of the refrigerating compartment to guide the cold air to the right discharge port discharged by the cold air generated by the cooling device, and formed in a separate space in the lower side of the refrigerating compartment And a suction duct for sucking the vegetable chamber and the cold air supplied to the refrigerating chamber through a suction passage through which the vegetable chamber contacts the outer circumferential surface of the vegetable chamber to indirectly cool the vegetable chamber and passes through the rear of the main body to the cooling device mounting unit. It is composed.

Hereinafter, a cold air supply apparatus of a refrigerator, which is an embodiment of the present invention, will be described in detail with reference to the accompanying drawings. Hereinafter, the same parts as in the related art will be described with the same reference numerals.

FIG. 3 is a front view of a refrigerator equipped with a cold air supply device according to an embodiment of the present invention, FIG. 4 is a plan view showing a section AA of the refrigerator of FIG. 3, and FIG. 5 is a section view BB of FIG. 3. One side view.

As shown in FIGS. 3 to 5, the refrigerator equipped with the cold air supply device is bisected by the main body 1 and the spacer 16 integrated into the main body 1 to freeze and store food. And a refrigerating compartment 20 for refrigerating, a refrigerating compartment door 11 for opening and closing the freezer compartment 10 and a refrigerating compartment door 21 for opening and closing the refrigerating compartment 20, and a refrigerating compartment installed at the front of the main body 1. A refrigeration cycle for generating cold air necessary for cooling the 10 and the freezer compartment 20 is provided.

The freezing compartment (10) is a cooling chamber (2) partitioned by a shroud (14) formed in the rear of the body 1 in the opposite direction to the direction in which the refrigerating chamber door 11 is installed, and the cooling chamber (2) an evaporator (3) which is mounted inside and generates cooling air, and a blowing fan (13) mounted on the upper side of the evaporator (3) to forcibly blow the cold air generated by the evaporator (3) to flow. And a grill 12 formed on the front surface of the blower fan 13 to control the flow of cold air and having a discharge port 12a communicated with the freezing compartment 10.

Reference numeral 16a denotes a return duct for returning the cold air supplied to the freezing chamber to the cooling chamber 2.

The refrigerating compartment 20 includes a plurality of shelves 22 mounted in multiple layers to allow food or the like to be placed in the refrigerating compartment 20, and a vegetable compartment 28 partitioned into a separate space below the refrigerating compartment 20. It is formed in the front portion in the direction in which the refrigerating chamber door 21 of the refrigerating chamber 20, the upper surface (20a) to the upper discharge port (23a) to discharge the cold air generated by the evaporator (3), the cooling device The upper duct 23 formed through the spacer 16 to communicate with the cooling chamber 2 and the refrigerating chamber door 21 of the left side surface 20b of the refrigerating chamber 20 are mounted to guide the cold air. It is formed in a constant arrangement on the front side in the direction of the direction is in communication with a predetermined portion of the upper duct 23 to guide the cold air to the left discharge port 24a discharged by the cool air generated by the evaporator (3) The left duct 24 formed through the inside of the left side of the refrigerating compartment, The right discharge port 25a is formed in a constant arrangement on the front side in the direction in which the refrigerating chamber door 21 of the long side 20c of the long compartment 20 is mounted, and discharges the cold air generated by the evaporator 3 as the cooling device. The right duct 25 is communicated with the cooling chamber 2 to guide the cold air through the inside of the right side of the refrigerating chamber, and the cold air supplied to the refrigerating chamber 20 opens the outer wall 28a of the vegetable chamber 28. A suction duct 27 is provided which is sucked through the suction passage 26 passing through the main body 1 and communicates with the cooling chamber 2 so as to be recooled by being introduced into the evaporator 3 mounting part through the rear surface of the main body 1. .

When power is supplied to the refrigerator configured as described above, a compressor constituting the refrigeration cycle is driven inside the refrigerator to compress a low-temperature, low-pressure gas refrigerant into a high-temperature, high-pressure gas refrigerant. The gas refrigerant condenses into a liquid refrigerant of high temperature and high pressure as it passes through the condenser.

The condensed high temperature and high pressure liquid refrigerant is converted into a low temperature and low pressure liquid refrigerant through an expansion valve, and the low temperature and low pressure liquid refrigerant is converted into a low temperature and low pressure gas refrigerant while passing through the evaporator (3). By evaporation, the surrounding air is heat-exchanged by the evaporation of the evaporator 3 to cool the surrounding air, thereby generating cold air.

Part of the cold air generated as described above is forcedly blown according to the rotation of the blower fan 13 installed at the rear of the main body 1 and supplied to the freezing chamber 10 through the discharge port 12a to cool down to a predetermined temperature. Part of the remaining cold air is guided to the shroud 14 and freely falls to a predetermined portion of the refrigerating chamber 20 through the upper duct 23, the left duct 24, and the right duct 25. After induction, the inside of the refrigerating chamber 20 is introduced through the upper discharge port 23a, the left discharge port 24a, and the right discharge port 25a formed in the front portion of the refrigerating chamber 20.

At this time, the upper discharge port (23a), the left discharge port (24a) and the right discharge port (25a) is formed in a straight line at a constant interval with the front surface of the refrigerating chamber 20 is discharged cold air evenly inside the refrigerating chamber (20) When the refrigerating chamber door 21 is opened and the refrigerating chamber 20 is opened to the outside, a cold air film is formed by cold air discharged in a straight line through each discharge port, thereby reducing the outflow of cold air.

As the cold air supplied to the refrigerating compartment 20 is shown in FIG. 5, the cold air supplied to the inside of the refrigerating compartment 20 cools the food loaded on the shelf 22 to an appropriate temperature, and then the vegetable compartment 28 Pass through the suction passage 26 formed in contact with the lower outer wall (28a) of the), and indirect cooling to prevent the drying of the food stored in the vegetable chamber (28).

The cold air, which has indirectly cooled the vegetable compartment 28 via the suction passage 26, flows back into the cooling chamber 2 through the suction duct 27 formed on the rear surface of the main body 1, and thus the evaporator 3. It is re-cooled by) to circulate the inside of the refrigerator.

As described above, in the cold air supply device of the refrigerator according to the present invention, cold air is uniformly supplied into the refrigerating chamber 20 through the upper discharge port 23a, the left discharge port 24a, and the right discharge port 25a. In addition, by discharging cold air in a straight line on the front surface of the refrigerating chamber 20 to form a cold air film, when the refrigerating chamber 20 is opened, external leakage of cold air can be reduced.

Then, the cold air flows through the suction passage 26 in contact with the outer wall 28a of the vegetable chamber 28, so that the vegetable chamber 28 can be indirectly cooled.

As described above, the cold air supply apparatus of the refrigerator according to the present invention supplies cold air through each of the upper duct, left duct, and right duct evenly distributed on the upper, left, and right sides of the refrigerating chamber, thereby discharging the cold air evenly to the refrigerating chamber. The temperature in the refrigerator is uniformly distributed, and when the cold chamber is formed to open the refrigerating chamber, the outflow of cold air is reduced, thereby increasing the cooling efficiency.

In addition, by indirectly cooling the vegetable compartment formed in the lower part of the refrigerating compartment has an effect of suppressing the drying of the food stored in the vegetable compartment to increase the cooling efficiency.

Claims (3)

A main body partitioned into a freezer compartment for freezing food and a cold compartment for storing food by a spacer; A cooling device for generating cold air necessary for cooling inside the main body; A blowing fan mounted at a predetermined portion inside the main body to generate a flow of cold air generated in the cooling device; An upper duct formed in the front side of the upper side of the refrigerating chamber and formed in the spacer to guide the cold air to an upper discharge port through which cold air generated by the cooling device is discharged; At least one left duct formed at a front side of the left side of the refrigerating compartment in a predetermined arrangement so as to guide the cool air to the left discharge port through which the cool air generated by the cooling device is discharged; At least one right duct formed on the front side of the right side of the refrigerating compartment through a right side of the refrigerating compartment right side so as to guide the cool air to the right discharge port through which the cool air generated by the cooling device is discharged; Vegetable chamber formed in a separate space in the lower side of the refrigerator compartment, The cold air supplied to the refrigerating chamber is in contact with the outer peripheral surface of the vegetable chamber is sucked through the suction passage through which the vegetable chamber is indirectly cooled and is provided with a suction duct guided to the cooling device mounting via the inside of the rear of the main body A cold air supply device for a refrigerator. According to claim 1, wherein the upper discharge port, the left discharge port, and the right discharge port is formed in a straight line to maintain a constant distance from the front surface of the refrigerating chamber, when the cold compartment is opened, the cold air film is formed by the cold air discharged in a straight line Cold air supply device characterized in that the refrigerator. delete