KR100451355B1 - Apparatus for supply the cool air of refrigerator - Google Patents

Abstract

The present invention relates to a cold air supply device for a refrigerator, which is divided into a freezer compartment for freezing food and a cold compartment for storing food by a partition wall, and having a main body equipped with a cooling device for generating cold air for cooling the refrigerator compartment and the freezer compartment. A back cold air guide flow path formed on the rear surface of the refrigerating compartment and guiding the cool air generated in the refrigerating unit to be supplied to the inside of the refrigerating compartment, and formed on the left side of the refrigerating compartment to guide the cold air generated in the refrigerating compartment to the inside of the refrigerating compartment. A cold air guide flow path provided on the left side, a cold air guide flow path formed on the right side of the refrigerating compartment and guided to the inside of the refrigerating chamber by guiding the cold air generated in the refrigerating unit, and formed on a partition wall which is an upper side of the refrigerating compartment. It consists of a cold air suction flow path which is supplied to the cold air supplied to the cooling device A rear cooling air guide passage, it being the left side cold air passage guide, and a right side cold air evenly cool air is supplied through the guide passage, to even out the temperature distribution so as to ensure a high cooling efficiency.

Description

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

The present invention relates to a cold air supply device for a refrigerator, and more particularly, to a cold air supply device for a refrigerator that can increase cooling efficiency by evenly supplying cold air that cools the refrigerator compartment to the inside of the refrigerator compartment.

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. Divided into the freezing compartment 10 and the refrigerating compartment 20 by the partition wall 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 Is forcedly blown by the blower fan 13 and supplied to the freezing chamber 10 through a shroud 14, and a part of the remaining cold air is freely dropped through the shroud 14 to provide a cold air guide passage ( 15) is guided to the refrigerating compartment 20 side.

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 is freely dropped through the cold air guide passage 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 discharge ports (15a) formed on the front surface of the cold air guide flow path (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 again evaporates through the cold air suction passage 16a formed in the separation wall 16. (3) It reflows in the vicinity and is recooled.

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

On the contrary, the food located far from the discharge port 15a is not cooled properly, resulting in a problem that cooling efficiency is lowered due to uneven temperature distribution.

An object of the present invention devised in view of the above point is to provide a cold air supply apparatus of a refrigerator which can be supplied with cold air evenly to the refrigerating chamber 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 side cross-sectional view showing the internal structure of the refrigerator of Figure 3,

FIG. 5 is a cross-sectional view of a portion A-A shown in the refrigerator of FIG.

** Description of the symbols for the main parts of the drawings **

1: body 2: cooling chamber

3: evaporator 10: freezer

11: freezer door 12: grill

12a: freezer compartment discharge port 13: blowing fan

14: shroud 16: partition wall

16a: cold air suction flow path 20: refrigerating chamber

21: refrigerator door 22: shelf

23: back cold air flow path 23a: back duct

23b: rear branch duct 23c: rear discharge port

24: Left side cold air flow path 24a: Left side duct

24b: Left side branch duct 24c: Left side discharge port

25: Right side cold air flow path 25a: Right side duct

25b: Right side branch duct 25c: Right side outlet

As described above, the cold air supply device of the refrigerator for achieving the object of the present invention is divided into a freezer compartment for freezing food and a cold compartment for storing food by a partition wall, and generating cooling air for cooling the refrigerator compartment and the freezer compartment. A main body equipped with the apparatus, a rear duct communicating with the rear duct and the rear duct which guides the cool air generated from the cooling device to an upper rear side and extending to the rear lower side of the refrigerating chamber to receive cold air, and a rear discharge port communicating with the refrigerating chamber. A back cold air guide flow passage formed of a back branch duct for discharging cold air through the back duct and extending to an upper side of the left side of the refrigerating compartment and communicating with the left side duct and the left side duct to be supplied with cold air, The left side extends to the lower left side to receive cold air and communicate with the refrigerating compartment. A left side cold air guide flow passage formed of a left side branch duct for discharging cold air through a surface discharge port, and a right side duct communicating with the rear duct and extending to an upper side of the right side of the refrigerating compartment and communicating with the right side duct and the right side duct; It extends to the lower right side of the refrigerating compartment to receive cold air and is formed on the right side cold air flow passage formed of a right side branch duct for discharging cold air through the right side discharge port communicating with the refrigerating compartment, and is formed on a partition wall which is an upper side of the refrigerating compartment and supplied to the refrigerating compartment. The cold air is sucked into the cold air suction passage is guided to the cooling device is configured.

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, and the same parts as in the related art will be described with the same reference numerals.

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 side cross-sectional view of the refrigerator of FIG. 3, and FIG. 5 is a plan view showing a section AA of the refrigerator of FIG. 3. to be.

As shown in FIGS. 3 to 5, the refrigerator equipped with the cold air supply device of the refrigerator is frosted by a main body 1 and a partition wall 16 integrated into the main body 1 to freeze and store food. (10) and the refrigerating chamber 20 for refrigeration, a freezer compartment 11 installed at the front of the main body 1 to open and close the freezer compartment 10, and a refrigerating compartment door 21 for opening and closing the refrigerating compartment 20; A freezing cycle for generating cold air required for cooling the freezer compartment 10 and the refrigerating compartment 20 is provided.

The freezing compartment (10) is a cooling chamber (2) partitioned by a shroud (14) formed in the rear of the main body 1 opposite to the direction in which the freezing 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 freezer compartment discharge port 12a communicating with the freezer compartment 10.

A cold air suction passage 16a is formed inside the separation wall 16 to re-introduce the cold air supplied to the freezing chamber 10 and the refrigerating chamber 20 into the cooling chamber 2.

The refrigerating compartment 20 is formed on the rear surface of the refrigerating compartment 20 and a plurality of shelves 22 mounted in multiple layers to allow food or the like to be seated in the refrigerating compartment 20 and communicated with the cooling compartment 2. A back cold air guide flow path 23 for guiding the cold air generated by the evaporator 3 and discharging therein, and formed on the left side of the refrigerating chamber and communicating with the cooling chamber 2 so as to be communicated by the evaporator 3. Cold air generated by the evaporator 3 in communication with the cooling chamber 2 and formed on the left side cold air guide passage 24 for guiding the generated cold air and discharging therein, and on the right side of the refrigerating chamber 20. The right side cold air guide flow passage 25 for guiding and discharging therein is provided.

The rear cold air guide passage 23 communicates with the cooling chamber 2 to direct the cold air generated by the evaporator 3 to an upper portion of the rear surface of the refrigerating chamber 20, and the rear duct. A rear branch duct 23b communicating with 23a and extending to the bottom of the rear surface of the refrigerating chamber 20 to receive cold air, and communicating with the rear branch duct 23b and mounted inside the refrigerating chamber 20. In the lower part of the shelf 22, the back discharge port 23c formed in each compartment of the refrigerator compartment 20 at equal intervals is provided and comprised.

The left side cold air flow passage 24 communicates with the rear duct 23a and extends to the upper left side of the refrigerating compartment 20 to form cold air generated by the evaporator 3 on the left side of the refrigerating compartment 20. The left side duct 24a which guides to the upper surface and the left side branch duct 24b which communicates perpendicularly to the left side duct 24a and branched to the lower left side of the refrigerating compartment 20 in two ways to receive cold air. ) And a left side discharge port 24c which is formed under the shelf 22 which is in communication with the left side branch duct 24b and mounted inside the refrigerating chamber 20 and discharges cold air.

The right side cold air guide passage 25 communicates with the rear duct 23a and extends to the upper right side of the refrigerating compartment 20 to cool air generated by the evaporator 3 to the upper right side of the refrigerating compartment 20. The right side duct 25a, the right side duct 25b which communicates perpendicularly to the right side duct 25a, branches to the bottom of the right side of the refrigerating chamber 20 in two ways, and receives cold air, and the right side branch duct. The right side discharge port 25c which is formed in the lower part of the shelf 22 which communicates with 25b and is mounted in the refrigerating chamber 20, and discharges cold air is provided.

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 freezer compartment 10 through the freezer compartment outlet 12a to cool down to a predetermined temperature. Of the refrigerating compartment 20 through the rear duct 23a, the left side duct 24a, and the right side duct 25a. After being guided to an upper predetermined portion, the rear branch duct 23b, the left side branch duct 24b, and the right side branch duct 25b are supplied to respective refrigerator compartment compartments formed by the shelf 22, and the shelf The discharge chamber 23 is discharged to the refrigerating compartment through the rear discharge port 23c, the left side discharge port 24c, and the right side discharge port 25c formed at the lower portion of the 22.

The cold air supplied to the refrigerating compartment 20 is supplied to the inside of the refrigerating compartment 20 to cool the food loaded on the shelf 22 to an appropriate temperature, and then the upper side of the refrigerating compartment 20 is separated from the wall 16. After being attracted back to the cooling chamber 2 through the cold air suction passage 16a formed in the), it is re-cooled by the evaporator 3, and then flows into the furnace again and circulates.

As described above, the refrigerator air supply device of the refrigerator according to the present invention has two rear discharge ports formed on one side of the rear branch duct formed on the rear surface of the refrigerating compartment for each of the refrigerating compartment compartments partitioned by the shelves, and in two branches on the left side of the refrigerating compartment. Cold air is evenly supplied into the refrigerating chamber through a left side discharge port respectively formed on one side of the left side branch duct formed by branching, and a right side discharge hole respectively formed on one side of the right side branch duct formed by bifurcating on the right side of the refrigerating compartment. As a result, the temperature distribution becomes uniform and the cooling efficiency is increased.

In addition, since the temperature difference inside the refrigerating compartment is reduced, the food preservation degree according to the storage position of the food becomes uniform.

As described above, the refrigerator air supply apparatus of the refrigerator according to the present invention has a rear cold air guide channel, a cold air guide channel on the left side, and a cold air guide channel on the left side and the right side of the refrigerating compartment, and are evenly distributed on the front and rear sides of the refrigerator compartment. By supplying cold air through the cold air evenly to each of the refrigerating compartment, the temperature inside the refrigerating compartment is uniformly distributed, the food preservation degree is formed uniformly according to the storage location of the food has the effect of increasing the cooling efficiency. .

Claims (7)

The main body is divided into a freezer compartment for freezing food and a cold compartment for storing food by a partition wall, and equipped with a cooling device for generating cold air required for cooling the refrigerator compartment and the freezer compartment, A rear branch which communicates with the rear duct and the rear duct which guides the cool air generated from the cooling device to the upper part of the rear surface and extends to the bottom of the rear surface of the refrigerating chamber to receive the cold air and discharge the cold air through the rear discharge port communicating with the refrigerating chamber. Back cold air flow path consisting of ducts, The left side duct communicates with the rear duct and extends to the upper left side of the refrigerating compartment and is supplied with cold air, and the left side duct communicates with the left side duct and extends to the lower left side of the refrigerating compartment to receive cold air and to communicate with the refrigerating compartment. A left side cold air guide flow passage formed of a left side branch duct for discharging cold air through a surface discharge port; The right side duct is connected to the rear duct and extends to the upper right side of the refrigerating compartment, and is connected to the right side duct receiving cold air, and is extended to the lower right side of the refrigerating compartment, and is supplied with cold air. The right side cold air guide flow passage consisting of a right side branch duct for discharging water, And a cold air suction passage formed on a partition wall, which is an upper surface of the refrigerating chamber, to guide the cold air supplied to the refrigerating chamber to be guided to the cooling device. delete The cold air supply apparatus of claim 1, wherein the rear discharge ports are formed at equal intervals for each of the refrigerating compartments partitioned by a shelf mounted in the refrigerating compartment. The method according to claim 1, wherein the left side branch duct is in communication with the left side duct, branched to the lower left side of the refrigerating compartment to receive cold air and to discharge the cold air through the left side outlet opening in communication with the refrigerating compartment. A cold air supply device for a refrigerator. The refrigerator according to claim 1 or 4, wherein at least one left side outlet is formed in each of the left side branch ducts of each of the refrigerating compartments partitioned by a shelf mounted inside the refrigerating compartment. Cold Feeder. The right side branch duct of claim 1, wherein the right side branch duct communicates with the right side duct, is bifurcated to a lower portion of the right side of the refrigerating chamber, receives cold air, and has a right side branch duct for discharging cold air through a right side discharge port communicating with the refrigerating chamber. Cold air supply apparatus of the refrigerator, characterized in that the configuration. The cold air supply apparatus according to claim 6, wherein each of the right side outlets is formed in each of the right side branch ducts of each of the refrigerating compartments partitioned by a shelf mounted inside the refrigerating compartment.