KR20030042757A - Apparatus for supply the cool air of refrigerator - Google Patents

Abstract

PURPOSE: A cool air-supplying device of a refrigerator is provided to uniformly distribute temperature and accordingly increase cooling efficiency by equally supplying cool air through rear, left, right, and door cool air guiding passages which are installed to a refrigerating compartment. CONSTITUTION: A cool air-supplying device of a refrigerator comprises a body(1) divided into a freezer compartment(10) cooling and storing food and a refrigerating compartment(20) keeping food cold by a partition(16), a cooling unit generating cool air being necessary for freezing the inside of the body, a blower fan(13) installed to a side of the body with generating the flow of cool air generated in the cooling unit, a door cool air guiding passage(23) formed at the inside of the door installed in the front of the refrigerating compartment to guide cool air generated in the cooling unit and discharge cool air into a cavity through an inner part of a door(21), a rear cool air guiding passage(24) formed at the rear of the refrigerating compartment being an opposite direction for a door installing part to guide and discharge cool air to the cavity through a rear part, a left cool air guiding passage installed at the left of the refrigerating compartment to guide and discharge cool air to the cavity through a left part, a right cool air guiding passage(26) formed at the right of the refrigerating compartment with guiding and discharging cool air to the cavity through a right side, and an inlet passage(16a) formed at the upside of the refrigerating compartment to suck in and guide cool air to the cooling unit.

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 the shroud 14, and a part of the remaining cold air falls freely through the shroud 14, thereby allowing the duct 15 It is guided to the refrigerating chamber 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, and the cold air is freely dropped through the 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 discharge ports 15a formed on the front surface of the 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 again evaporates through the suction passage 16a formed in the separation wall 16. 3) It is reintroduced to the vicinity and 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;

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

FIG. 5 is a plan view cross-sectional view illustrating a portion A-A of the refrigerator of FIG. 4;

FIG. 6 is a plan view illustrating a B-B section of the refrigerator of FIG. 4 in cross section. 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: discharge port 13: blower fan

14: shroud 16: partition wall

16a: by suction 20: refrigerating chamber

21: refrigerator door 22: shelf

23: door side cold air flow path 23a: door discharge port

23b: Horizontal duct on the door side 23c: Vertical duct on the door side

23d: Inlet 24: Rear side cold air guide

24a: Rear discharge port 24b: Rear horizontal duct

24c: Rear vertical duct 25: Left cold air flow passage

25a: Left discharge port 25b: Left horizontal duct

25c: Left vertical duct 26: Right cold air flow path

26a: right discharge port 26b: right horizontal duct

26c: Right vertical duct 28: Basket part

As described above, the refrigerator's cold air supply apparatus 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 partition wall, and generating cold air for cooling the inside of the main body. Cooling device, a blowing fan mounted on a predetermined portion inside the main body to generate the flow of cold air generated in the cooling device, and cold air generated in the cooling device formed at a predetermined portion inside the door mounted on the front side of the refrigerating chamber. A guide on the door side air air flow path that discharges the inside of the refrigerator through a predetermined portion of the inner surface of the door, and formed at a predetermined portion of the rear side of the refrigerating chamber in the opposite direction to the door mounting portion to guide the cold air generated by the cooling device The cold air guide flow path is discharged into the inside of the refrigerator through the part, and is formed at a predetermined part on the left side of the refrigerating chamber. A cold air guide passage for guiding the cold air generated by the air cooler and discharging the inside of the refrigerator through a predetermined portion of the left side of the refrigerating compartment, and a predetermined portion of the right side of the refrigerating compartment to guide the cold air generated by the cooling device The right cold air guide flow path discharged into the inside of the refrigerator through the site, and a suction path formed in a predetermined portion of the upper side of the refrigerating compartment, the cold air supplied to the refrigerating compartment is sucked and guided to the cooling device.

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. 4. 6 is a cross-sectional view illustrating a BB portion of the refrigerator of FIG. 4.

As shown in FIGS. 3 to 6, the refrigerator equipped with a cold air supply device may be bisected by a main body 1 and a separating wall 16 integrated into the main body 1 to freeze and store food. And a refrigerating compartment 20 for refrigerating, a freezing compartment door 11 for opening and closing the freezing compartment 10 and a refrigerating compartment door 21 for opening and closing the refrigerating compartment 20, and a freezing compartment installed at the front of the main body 1. The refrigeration cycle which generate | occur | produces cold air necessary for cooling of the refrigerator compartment 20 and is comprised is comprised.

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 discharge port 12a communicated with the freezing 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 formed in a plurality of shelves 22 mounted in multiple layers so as to seat food in the refrigerating compartment 20, and a door mounted on the front of the refrigerating compartment 20, and the cooling compartment 20. And a door-side cold air guide passage 23 communicating with (2) and guiding the cold air generated by the evaporator 3 and discharging it into the inside of the refrigerator, and formed on the rear surface of the refrigerating chamber 20, A rear side cold air guide passage 24 communicating with the cold air generated by the evaporator 3 and discharging the inside of the refrigerator, and formed on the left side of the refrigerating chamber 20 and communicating with the cooling chamber 2 The left cold air guide passage 25 for guiding the cold air generated by the evaporator 3 and discharging it into the inside of the refrigerator is formed on the right side of the refrigerating chamber 20 and communicates with the cooling chamber 2 to the evaporator 3. The right cold air guide flow path 26 for guiding the cold air generated by the air and discharging it into the air is It is is configured.

The rear side cold air flow passage 24 is horizontally disposed to contact the rear side discharge port 24a and the rear side discharge port 24a which are formed in a plurality at equal intervals in the lower part of the shelf 22 of the refrigerating chamber 20. Rear side horizontal duct 24b communicating with each other and guiding the rear side horizontal duct 24b and communicating with the cooling chamber 2 to guide the cold air generated in the evaporator 3 It comprises a vertical duct 24c.

The left cold air guide passage 25 is horizontally communicated with the left discharge port 25a formed in plurality at equal intervals in the lower part of the shelf 22 of the refrigerating chamber 20 and in contact with the left discharge port 25a. The left horizontal duct 25b for guiding the left horizontal duct 25b and the left horizontal duct 25b for communicating with the cooling chamber 2 are connected to the cooling chamber 2 to guide the cold air generated in the evaporator 3. It is configured to include.

The right cold air flow passage 26 is horizontally communicated to contact the right discharge port 26a and a plurality of right discharge ports 26a formed horizontally at equal intervals in the lower part of the shelf 22 of the refrigerating chamber 20, so that the cold air flows in contact with the right discharge port 26a. The right horizontal duct 26b for guiding the right horizontal duct 26b and the right vertical duct 26c for connecting the right horizontal duct 26b and communicating with the cooling chamber 2 to guide the cold air generated in the evaporator 3 are provided. The right discharge port formed at the front end of the uppermost part of the right discharge port 26a has a larger inner diameter than the other right discharge port.

The door side cold air guide passage 23 is a plurality of door discharge port 23a formed at equal intervals horizontally at a lower portion of the basket part 28 mounted on the inner surface of the refrigerating compartment door 21, and the door discharge port 23a. Door side duct 23b communicating horizontally with each other to guide cold air, and door side duct 23c for guiding cold air generated in the evaporator 3 by connecting the door side duct 23b. ), And when the refrigerating compartment door 21 is closed, connecting the right discharge port 26a formed at the front end of the uppermost side of the right discharge port 26a and the uppermost end of the door side duct 23b. It is configured to include an inflow path 23d protruding by a predetermined length.

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 free-falls, and the refrigerating chamber 20 is passed through the rear vertical duct 24c, the left vertical duct 25c, and the right vertical duct 26c. After being led to a predetermined portion of the wall surface, the rear side horizontal duct 24b, the left horizontal duct 25b, and the right side horizontal duct 26b formed in each of the refrigerating compartments formed by the shelf 22 are discharge outlets of the rear side. (24a) It is discharged to each compartment of the refrigerating chamber through the left discharge port 25a and the right discharge port 26a.

As illustrated in FIG. 6, the cool air guided to the right horizontal duct 26b formed at the uppermost side of the right side of the refrigerating chamber 20 is discharged through the right discharge port 26a formed at the front end of the right horizontal duct 26b. The discharged cold air flows into the door side horizontal duct 23c formed at the uppermost side of the refrigerating compartment door 21 through the inflow passage 23d.

The cool air introduced into the door side duct 23c is guided to each door side duct 23c by the door side duct 23c, and is evenly discharged in the inside of the chamber through the door side outlet 23a.

The cold air supplied to the refrigerating compartment 20 is supplied to the inside of the refrigerating compartment 20 as shown in FIG. 4 to cool the food loaded on the shelf 22 to an appropriate temperature, and then the separation wall 16. After being sucked back into the cooling chamber 2 through the suction passage 16a formed in the inside of the cooling chamber 2 again to be cooled again, it is introduced into the refrigerator and circulated again.

As described above, the cold air supply device of the refrigerator according to the present invention evenly supplies cool air into the refrigerating chamber 20 through the rear discharge port 24a, the left discharge port 25a, the right discharge port 26a, and the door discharge port 23a. The temperature is uniformly distributed and the cooling efficiency is increased.

In addition, the cooling efficiency of the basket portion 28 is increased by the cold air supplied through the door discharge port 23a formed under the basket portion 28 of the refrigerating compartment door 20.

As described above, the refrigerator air supply apparatus of the refrigerator according to the present invention has respective rear side cold air guide flow passages, left cold air guide flow passages, right cold air guide flow passages, and door side cold air distributed evenly on the upper, left, right and doors of the refrigerating compartment. By supplying cold air through the guide passage and discharging cold air evenly to the refrigerating chamber, the temperature in the refrigerator is uniformly distributed, thereby increasing the cooling efficiency.

In addition, the cooling efficiency of the door basket portion, which is weak in the related art, also increases due to the cold air supplied through the door-side cold air guide flow path formed in the refrigerating compartment door.

Claims (9)

A main body partitioned into a freezer compartment for freezing food and a cold compartment for storing food by a partition wall, 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; A door side cold air guiding flow path formed at a predetermined portion inside the door mounted on the front side of the refrigerating compartment and guiding the cool air generated by the cooling device to discharge the inside of the refrigerator through a predetermined portion of the inner surface of the door; A rear side cold air guide flow path formed at a predetermined portion at a rear side of the refrigerating chamber in the opposite direction to the door mounting unit and guiding the cold air generated by the cooling apparatus and discharging the inside of the refrigerator through the predetermined rear side portion; A left side cold air guide flow path formed at a predetermined portion of the left side of the refrigerating compartment and guiding the cold air generated by the cooling apparatus and discharged into the inside of the refrigerator through a predetermined portion of the left side of the refrigerating compartment; A right cold air guide flow path formed at a predetermined portion of the right side of the refrigerating chamber and guiding the cold air generated by the cooling device and discharging in the refrigerator through a predetermined portion of the right side of the refrigerating chamber; And a suction path formed at a predetermined portion of an upper surface of the refrigerating compartment and configured to suction the cold air supplied to the refrigerating compartment and guide the cooling apparatus to the cooling apparatus. 2. The at least one door side horizontal duct of claim 1, wherein the door side cold air guiding passage is horizontally formed at a predetermined portion of the inner side of the door to guide the cold air to the door outlet through which cold air is discharged, and each of the door sides And a door side vertical duct for connecting horizontal ducts and guiding cold air generated from the cooling device. The cold air supply apparatus of claim 2, wherein a plurality of door outlets are formed at equal intervals in a lower portion of a basket mounted on an inner surface of the door. According to claim 1, wherein the rear side cold air flow path is formed horizontally at a certain portion of the rear side of the refrigerating chamber at least one rear side horizontal duct for guiding the cold air to the rear discharge port through which cold air is discharged, each of the rear side Cold air supply of the refrigerator, characterized in that the rear side vertical duct is provided to connect the horizontal duct to guide the cold air generated in the cooling device. The cold air supply apparatus of claim 4, wherein a plurality of rear discharge ports are formed at equal intervals in a lower portion of a shelf mounted in the refrigerating compartment. According to claim 1, wherein the left side air duct flow path is formed horizontally on a certain portion of the left side of the refrigerating chamber at least one left horizontal duct for guiding the cold air to the left discharge port discharged cold air, and each of the left horizontal duct And a left vertical duct connected to guide the cold air generated by the cooling device. The refrigerator of claim 6, wherein the left discharge port is formed in plural at equal intervals in a lower portion of a shelf mounted in the refrigerating compartment. According to claim 1, wherein the right side air duct flow path is formed horizontally on a certain portion of the right side of the refrigerating compartment at least one right horizontal duct for guiding the cold air to the right discharge port through which cold air is discharged, each of the right horizontal ducts And a right vertical duct for guiding the cold air generated by the cooling device. The refrigerator of claim 8, wherein the right outlet port is formed in plural at equal intervals in a lower portion of a shelf mounted in the refrigerating compartment.