KR200171919Y1 - Refrigerator - Google Patents

Abstract

The present invention, an evaporator, a blowing fan for blowing cold air from the evaporator, a rear cover coupled to the front of the evaporator and formed with a circular opening for positioning of the blower fan, and coupled to the front of the rear cover A refrigerator having an upper duct formed by a front cover and a cold air duct for guiding cold air from the upper duct to a cooling chamber, wherein the upper duct flows to guide cold air from the blower fan to the cold air duct. It is characterized by having a guide member for forming a. Thereby, the refrigerator which reduced the noise and prevented the loss of the amount of cold air, and improved the cooling performance is provided.

Description

Refrigerator{}

The present invention relates to a refrigerator, and more particularly, to a refrigerator which reduces noise generated when discharging cold air from an evaporator and facilitates refrigerant circulation.

As shown in FIG. 5, the refrigerator includes a refrigerator compartment 52 and a freezer compartment 53 formed in the main body 51, which are partitioned up and down, and have a refrigerator compartment 52 and a freezer compartment 53 on the front surface of the main body 51. Has a refrigerating chamber door 54 and a freezing chamber door 55 for opening and closing the door. In the freezer compartment 53 and the refrigerating compartment 52, a plurality of storage shelves 59 are provided for storing food, and a box-shaped vegetable compartment 62 for storing vegetables or fruits is provided in the lower part of the refrigerating compartment 52. ) Is formed, and the special selection chamber 61 is formed in the upper portion of the refrigerating chamber 52 to accommodate the food according to the proper storage temperature of the food.

Behind the refrigerator compartment 52 and the freezer compartment 53 of the refrigerator, a refrigerator compartment evaporator 57b and a freezer compartment evaporator 57a for cooling the ambient air by the evaporating refrigerant are respectively provided, and each of the evaporators 57a and 57b. In the upper front of the refrigerator compartment blowing fan 70b and the freezing compartment blowing fan 70a for discharging the air cooled from each of the evaporators 57a and 57b into the refrigerating chamber 52 and the freezing chamber 53 are provided.

Here, in front of the refrigerator compartment evaporator 57b, as shown in FIG. 6, a rear cover 81 having a circular opening 82 in which the refrigerator compartment blowing fan 70b is located is provided, and the rear cover 81 is provided. A front cover 75 having a plurality of cold air discharge openings 76 formed therein is coupled to the front of the front at a predetermined interval, and the cold air from the refrigerating chamber blowing fan 70b is formed by the front cover 75 and the rear cover 81. The upper duct 80 to temporarily receive the guide is formed. On the other hand, the rear cover 81 is extended to the lower portion is formed to protrude forward with the lower end with a predetermined step, the recovery port 83 is formed on the step surface formed in the horizontal direction of the rear cover 81 refrigerated The cold air heat exchanged in the room is recovered and guided to the refrigerator compartment evaporator 70b.

Cold air ducts 90 are provided at both lower portions of the upper duct 80 to guide cold air from the upper duct 80 in the longitudinal direction of the refrigerating chamber. The cold air duct 90 is formed in a mutually opposite triangular tubular position is located at both rear edges of the rear of the refrigerating chamber, a plurality of cold air guides 91 are formed along one longitudinal direction toward the central region of the refrigerating chamber.

When power is applied to the refrigerator, the compressor is driven to compress the refrigerant at high temperature and high pressure, and the compressed refrigerant is condensed in a condenser (not shown) and introduced into the evaporator. The refrigerant introduced into the evaporators 57a and 57b takes the latent heat of evaporation from the ambient air and evaporates to cool the ambient air. The cooled air is discharged to the freezer compartment 53 and the refrigerating compartment 52 by the operation of the refrigerating compartment blowing fan 70b and the freezing compartment blowing fan 70a. At this time, the cold air discharged by the refrigerating compartment blowing fan 70b is After being temporarily accommodated in the duct 80, a part is discharged into the refrigerating chamber through the cold air outlet 76 formed in the front cover 75, and a part of the pair of cold air ducts connected to both lower portions of the upper duct 80 is formed. It moves along the 90 and is discharged into the refrigerating chamber through the cold air guide (91). The discharged cold air exchanges heat with air in the refrigerating chamber and flows through the recovery port 83 formed at the lower portion of the rear cover 81 to pass through the evaporator to exchange heat.

However, during the circulation of the cold air, the cold air is discharged into the upper duct 80 by the blower fan, and flows with a complicated flow path by the rotational force of the blower fan. Accordingly, the flow path is extended to reduce the flow rate. The noise is relatively increased. In addition, since the blowing fan has a rotational direction to rotate to one side, the cold air is not evenly distributed in the cold air duct 90 on both sides, resulting in an unbalance of the amount of cold air, thereby inhibiting the cooling performance in each cooling chamber.

Accordingly, an object of the present invention is to provide a refrigerator which simplifies the flow of cold air, reduces noise, and improves cooling performance.

1 is a side cross-sectional view of a refrigerator according to the present invention,

Figure 2 is an exploded perspective view of the main portion enlarged in Figure 1,

3 is a front view of the rear cover of FIG.

4 is an assembled perspective view of FIG. 2;

5 is a side cross-sectional view of a conventional refrigerator,

6 is an enlarged exploded perspective view of the main part of FIG. 5.

<Description of the symbols for the main parts of the drawings>

2: freezer 3: freezer

7b: refrigerator compartment evaporator 20b: refrigerator compartment ventilator

25: front cover 26: cold air outlet

30: upper duct 31: rear cover

32: circular opening 33: recovery opening

35: guide member 40: cold air duct

41: Cold Guide

The object is, according to the present invention, the evaporator, a blowing fan for blowing cold air from the evaporator, a rear cover coupled to the front of the evaporator and formed with a circular opening for positioning of the blowing fan, and the rear cover A refrigerator having an upper duct formed by a front cover coupled to a front surface of a refrigerator, and a cold air duct for guiding cold air from the upper duct to a cooling chamber, wherein the upper duct includes the cold air from the blower fan. It is provided by a refrigerator, characterized in that it has a guide member for forming a flow path to guide to.

Here, the guide member is formed along the circumferential direction of the circular opening, it is preferably formed of a scroll spaced from the circular opening toward the end of the guide member. The guide member may be formed in plural at equal intervals around the circular opening, and the cold air duct may be formed as a pair of cold air duct portions formed in both sides of the cooling chamber along a longitudinal direction. . In addition, the rear cover may be extended downward to form a recovery port for recovering the cold air heat exchanged in the cooling chamber.

Hereinafter, the present invention will be described in detail with reference to the drawings.

As shown in FIG. 1, the refrigerator has a refrigerator compartment 2 and a freezer compartment 3 partitioned up and down, and a refrigerator compartment evaporator configured to cool the ambient air by exchanging a refrigerant in the rear of the refrigerator compartment 2 and the freezer compartment 3. 7b and the freezer evaporator 7a are provided. In the upper part of the refrigerator compartment evaporator 7b and the freezer compartment evaporator 7a, the refrigerator compartment blower fan 20b and the freezer compartment blower 20a which blow air which exchanged heat by each evaporator are provided.

2 is an enlarged exploded perspective view of the main portion of Figure 1, Figure 3 is a front view of the rear cover of Figure 2, Figure 4 is a perspective view of the combination of FIG. The front cover of the refrigerator compartment evaporator (7b) is provided with a rear cover (31) having a circular opening (32) in which the refrigerator compartment blowing fan (20b) is located, and the front of the rear cover (31) with a cold air outlet (26). The cover 25 is coupled to the rear cover 31 at a predetermined interval. Accordingly, an upper duct 30 temporarily receiving cold air from the refrigerating chamber evaporator 7b is formed between the front cover 25 and the rear cover 31.

Here, the circular opening 32 of the rear cover 31 is formed with a guide member 35 for guiding cold air along the circular opening 32, the guide member 35 along the circular opening 32. It is formed as a scroll spaced apart from the circular opening 32 in accordance with the spiral of Archimedes toward the distal end is sufficiently formed to contact the front cover 25 when engaging the front cover 25. In addition, the pair of guide members 35 are formed to correspond to each other around the circular opening 32, and the distal end of each guide member 35 is formed to face both sides of the upper duct 30.

On the other hand, the rear cover 31 is extended to the lower portion is formed to protrude forward with a lower step portion has a predetermined step, the recovery port 33 is formed on the step surface formed in the horizontal direction of the rear cover 31 refrigerated The cold air heat exchanged in the room is recovered and guided to the evaporator.

A pair of cold air ducts 40 which guide cold air from the upper duct 30 in the longitudinal direction of the refrigerating chamber are provided at both lower portions of the upper duct 30. The cold air duct 40 is formed in a triangular cylindrical shape and is located at both rear edges of the rear side of the refrigerating compartment, and one surface toward the central region of the refrigerating compartment is gently projected, and a plurality of cold air guides along the longitudinal direction are formed on one side of the cold air duct 40. 41) is formed.

By this configuration, when power is supplied to the refrigerator and the refrigerator cooling fan 20b is driven, cold air from the refrigerator compartment evaporator 7b is received into the upper duct 30 through the circular opening 32 of the upper duct 30. do. At this time, the cold air is evenly distributed by each guide member 35 and guided into the upper duct 30, a part of which is discharged into the refrigerating chamber 2 through the cold air discharge port 26, and the other part is the cold air duct 40. ) Is discharged into the refrigerating chamber (2) through the cold air guide (41). The discharged cold air is heat-exchanged in the refrigerating chamber 2, the temperature rises, flows into the recovery port 33, and is guided to the evaporator.

Accordingly, as the cold air discharged by the refrigerating chamber blowing fan 20b is guided along the guide member 35, the cold air is uniformly distributed to each cold air duct 40, thereby increasing the amount of cold air circulating, thereby cooling the refrigerating compartment 2. It can improve performance. In addition, the flow pattern of the cold air is simplified by the guide member 35 to prevent loss of the amount of cold air, and to reduce noise.

As described above, according to the present invention, there is provided a refrigerator having improved cooling performance by reducing noise and preventing loss of cold air amount.

Claims (2)

An evaporator, a blower fan for blowing cold air from the evaporator, a rear cover coupled to the front side of the evaporator and having a circular opening for positioning of the blower fan, and a front cover coupled to the front side of the rear cover. A refrigerator having an upper duct, and a cold air duct for guiding cold air from the upper duct to a cooling chamber, A refrigerator having a guide member which is formed in a scroll shape spaced apart from the circular opening toward the distal end along the circumferential direction of the circular opening and which forms a flow path to guide the cold air from the blowing fan to the cold air duct; . The method of claim 1, The guide member is a refrigerator, characterized in that a plurality is formed at equal intervals around the circular opening.