KR20030041592A - Apparatus for supply the cool air of refrigerator - Google Patents

Abstract

PURPOSE: An apparatus is provided to maintain freshness of the vegetable stored in the vegetable compartment of the refrigerator by preventing outflow of the moisture of the vegetable compartment. CONSTITUTION: An apparatus comprises a main body(1) divided into a freezing compartment(10) and a refrigerating compartment(20) by a separating wall(16), and which has a cooling unit for generating cooling air to be supplied to the freezing compartment and the refrigerating compartment; a refrigerating compartment cooling air guide channel(15) for guiding the cooling air generated from the cooling unit to the refrigerating compartment; a divider wall(24) mounted in the refrigerating compartment and which defines a vegetable compartment(23); a vegetable compartment cooling air guide channel(25) communicated to the refrigerating compartment cooling air guide channel and extended into the divider wall, and which condenses the vapor existing in the vegetable compartment at the outer surface of the divider wall; and a cooling air suction channel formed at the bottom surface of the vegetable compartment and the rear surface of the refrigerating compartment, and which guides the cooling air discharged through the vegetable compartment cooling air guide channel toward the cooling unit such that the guided cooling air is re-cooled.

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 specifically, to a cold air supply device for a refrigerator formed in a lower part of a refrigerator compartment to indirectly cool a vegetable compartment for storing vegetables and to maintain humidity to prevent drying of stored products. will be.

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. The freezing chamber 10 and the refrigerating chamber 20 are divided and partitioned by the dividing wall 16. Looking at the cold air supply structure, a part of the cold air cooled by heat exchange in the evaporator 3 through which the low temperature and 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 as to freeze the cold room guide flow path ( 15) is guided to the refrigerating chamber 20 side.

The cold air supply to the refrigerating compartment 20 is formed in the longitudinal direction at the rear of the main body 1 and freely cools the cold air through the refrigerating compartment cold air guide passage 15 connecting the shroud 14 and the refrigerating compartment 20. While being supplied to the refrigerating chamber 20 through a plurality of refrigerating chamber discharge ports 15a formed on the front surface of the refrigerating chamber cold air flow passage 15, the vegetable chamber 23 formed inside the refrigerating chamber 20 and the lower part of the refrigerating chamber 20. It is configured to cool.

The cold air supplied to the freezing compartment 10 and the refrigerating compartment 20 through the above process cools the vegetable compartment 23 and the food loaded therein, and then the suction passage 16a formed in the separation wall 16. Through the evaporator (3) again to be re-cooled.

However, in the conventional refrigerator as described above, the moisture in the vegetables stored in the vegetable chamber is evaporated, and the evaporated water is released to the outside of the vegetable chamber, whereby the vegetables stored in the vegetable chamber are dried and freshness is deteriorated. Can be.

An object of the present invention devised in view of the above point is to provide a cold air supply device of a refrigerator to suppress the evaporation of water of the vegetables stored in the vegetable compartment to maintain the freshness of the vegetable compartment.

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;

4 is a side cross-sectional view of the refrigerator of FIG. 3;

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

FIG. 6 is an enlarged partial detailed view of a partial cross section of the refrigerator illustrated in FIG. 4; FIG.

** Explanation of symbols for main parts of 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 15: cold room guided air flow path

15a: refrigerating chamber discharge port 16: partition wall

16a: by suction 20: refrigerating chamber

21: refrigerator door 22: shelf

23: vegetable room 23a: floor surface

24: bulkhead 25: vegetable room cold air guide euro

25a: vegetable chamber duct 25b: vegetable chamber branch duct

25c: vegetable chamber outlet 26: cold air suction flow path

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 cooling to generate cold air required for cooling the refrigerator compartment and the freezer compartment. A main body of which the apparatus is mounted at a certain part, a refrigerating chamber cold air guiding passage for guiding the cold air generated in the refrigerator of the refrigerator into the refrigerating chamber, a partition wall which is mounted at a predetermined part of the refrigerating chamber to partition the vegetable compartment, and the refrigerating chamber cold air guiding A vegetable chamber cold air guide passage communicating with a flow path and extending into the partition wall and condensing water vapor present in the vegetable chamber to the outer surface of the partition wall as the cold air flows inside the partition wall, the bottom surface of the vegetable chamber, and The cold air is formed on the rear surface of the refrigerating chamber and discharged through the vegetable chamber cold air guiding passage. It is configured to be provided with a cold air suction flow path for guiding and recooling to the tooth side.

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 cross-sectional view taken along the AA portion of the refrigerator illustrated in FIG. 4. to be.

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

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 freezer compartment discharge port 12a communicating with the freezer compartment 10.

The 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 a vegetable compartment partitioned by a plurality of shelves 22 mounted in multiple layers so as to allow food or the like to be placed in the refrigerating compartment 20, and a partition wall 24 mounted at a lower end of the refrigerating compartment 20. 23 and a refrigerating chamber cold air guide passage 15 formed on the rear surface of the refrigerating chamber 20 and guiding the cold air generated by the evaporator 3 to discharge into the refrigerating chamber 20 through the refrigerating chamber discharge port 15a. And a vegetable chamber cold air formed on the rear surface of the refrigerating compartment and communicating with the refrigerating chamber cold air flow path 15 and extending into the partition 24 to discharge the cold air after flowing through the inside of the partition 24. Cold air suction formed in the guide passage 25, the bottom surface 23a of the vegetable chamber 23, and the rear surface of the refrigerating chamber 20 to suck cold air and guide the cold air to the evaporator 3 side for re-cooling. The flow path 26 is provided and comprised.

The vegetable compartment cold air guide passage 25 is formed on the rear surface of the refrigerating compartment 20 so that one end thereof is branched from the vegetable chamber duct 25a communicating with the refrigerating compartment cold air guide passage 15 and the vegetable compartment duct 25a. A plurality of vegetable chamber branch ducts 25b formed in a straight line shape in the partition 24 and the vegetable chamber outlet 25c formed at the end of the vegetable chamber branch duct 25b are formed at the end of the partition wall 24. It is provided 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. Gas refrigerant is condensed into a high-temperature, high-pressure liquid refrigerant passing 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. After the freezing, a part of the remaining cold air is guided through the shroud 14 and free-falled and guided through the cold air guiding flow path 15 formed on the rear surface of the refrigerating compartment 20, and then the refrigerating compartment discharge port 15a. Through the refrigerating chamber 20 is supplied through.

At this time, a part of the cold air guided to the refrigerating compartment cold air guide flow path 15 is guided through the vegetable compartment duct 25a and the partition 24 through the vegetable compartment branch duct 25b branched from the vegetable compartment duct 25a. After flowing inside, it is discharged into the refrigerating chamber 20.

As shown in FIG. 6, when the temperature of the partition wall 24 becomes lower than the temperature inside the refrigerating chamber 20 and the vegetable chamber 23 due to cold air flowing in the partition wall 24, the vegetable chamber 25 Moisture evaporated from the vegetables stored inside the) and condensation on one side of the partition wall 24 in contact with the vegetable chamber.

At this time, without evaporating the water evaporated from the vegetables stored in the vegetable chamber 25 to the outside of the vegetable chamber 23, and condensation on one side of the partition wall 24 in contact with the vegetable chamber 23, the condensed moisture again vapor It is possible to maintain the freshness of the vegetables stored in the vegetable chamber 23 by repeatedly performing the vaporization in a state and supplying to the stored vegetables to maintain the humidity inside the vegetable chamber 23.

In this way, the refrigerator's cold air supply device indirectly directs the vegetable compartment by flowing cold air inside the partition wall in contact with the vegetable compartment in order to maintain humidity in the vegetable compartment without allowing vapors evaporated from the vegetables stored in the vegetable compartment to flow out of the vegetable compartment. After cooling and condensing water vapor on one side of the partition wall in contact with the vegetable chamber using cold air flowing therein, the process of vaporizing the condensed water vapor is repeated.

As described above, the cold air supply device of the refrigerator according to the present invention performs indirect cooling to maintain the vegetable chamber at an appropriate temperature by using the cold air flowing inside the partition wall, and the vegetable chamber is provided on one side of the partition wall in contact with the vegetable chamber. By condensing the water vapor evaporated from the vegetables stored in the condensate and vaporizing again, the moisture in the vegetable chamber is not discharged to the outside of the vegetable chamber, thereby maintaining the proper humidity and maintaining the freshness of the stored vegetables. have.

Claims (3)

The main body is partitioned into a freezer compartment for freezing food and a cold compartment for storing food by a partition wall, and a cooling device for generating cold air for cooling the refrigerator compartment and the freezer compartment is installed at a predetermined portion; A refrigerator compartment cold air guide passage for guiding the cold air generated in the refrigerator of the refrigerator into the refrigerator compartment; A partition wall mounted at a predetermined portion of the refrigerating compartment and partitioning the vegetable compartment; A vegetable chamber cold air guide passage communicating with the refrigerating compartment cold air guide passage and extending into the partition wall to condense water vapor present in the vegetable compartment on the outer surface of the partition wall as the cold air flows inside the partition wall; The cold air supply of the refrigerator is provided on the bottom surface of the vegetable compartment and the rear surface of the refrigerating compartment is provided with a cold air suction passage for guiding and re-cooling the cold air discharged through the vegetable chamber cold air guide passage toward the cooling device. Device. According to claim 1, wherein the vegetable chamber cold air flow path is connected to the cold chamber cold air flow path, the vegetable chamber ducts and the cold air flow in, the vegetable chamber branch duct branched from the vegetable chamber duct formed in the interior of the partition wall, the vegetable chamber branch And a vegetable chamber discharge port formed at an end of the duct and configured to discharge cold air to the outside of the partition wall. The refrigerator's cold air supply system according to claim 1 or 2, wherein the refrigerating compartment cold air guide passage and the vegetable compartment cold air guide passage are formed on a rear surface of the refrigerating compartment.