KR100441011B1 - Refregerator - Google Patents

Abstract

The present invention relates to a refrigerator, and an object thereof is to improve the air access structure of the machine room to effectively radiate the condenser and the compressor regardless of the installation position of the refrigerator.

To this end, according to the refrigerator according to the present invention, the suction duct 50 in which one side space of the machine room 18 and the front side of the cabinet 10 communicate with each other, and the other side space of the machine room 18 and the front side of the cabinet 10 A communicating discharge duct 60 is provided.

Therefore, when the cooling fan 22 in the machine room 18 is operated, the air on the front side of the cabinet 10 is sucked into the machine room 18 through the suction duct 50, and the condenser 20 and the compressor 21 are sequentially The air cooled and the condenser 20 and the compressor 21 are cooled are discharged to the front side of the cabinet 10 through the discharge duct 60. Therefore, regardless of the installation position of the refrigerator, the air in and out of the machine room 18 is smooth, and the heat dissipation of the compressor 21 and the condenser 20 is effectively performed, and the overall reliability of the product of the refrigerator is improved.

Description

Refrigerator {Refregerator}

The present invention relates to a refrigerator, and more particularly, to a refrigerator in which a machine room in which a compressor, a condenser, and the like are installed, is installed at a rear lower side of a cabinet, and outside air is allowed to enter and cool them.

In general, the refrigerator is configured to maintain the freshness of various foods for a long time by supplying the cool air generated from the evaporator of the refrigeration cycle for a long time, a cabinet having a storage compartment formed inside, a door hinged to the cabinet to open and close the storage compartment, Equipped with refrigeration cycle components to supply cold air to the storage compartment.

The cabinet is composed of an outer box in which steel sheets are bent, an inner box formed by injection molding of plastic to form a storage chamber, and an insulating wall formed by filling a urethane foam liquid between the inner box and the outer box.

In addition, referring to Figure 1, the lower side of the conventional cabinet (1), the machine room (5) is provided with a compressor (2), a cooling fan (3) and a condenser (4) for compressing the refrigerant to supply to the refrigeration cycle, A plate-shaped cover 6 is provided which is coupled via a screw 7 to cover the opening of the machine chamber 5. The cover 6 is provided with a plurality of vents 6a and 6b to allow the outside air to enter and exit, which is a plurality of suction holes 6a formed on one side of the cover 6 adjacent to the condenser 4. And a plurality of discharge holes 6b formed on the other side of the cover 6 adjacent to the compressor 2.

Therefore, when the cooling fan 3 is operated, the air in the region behind the cabinet 1 is sucked into the machine room 5 through the suction holes 6a to condense the condenser 4, while continuing to cool the compressor 2. It is discharged to the outside through the discharge holes 6b.

However, in the conventional refrigerator, the space between the rear wall and the left and right sides of the interior wall and the cabinet 1 must always be installed to allow air to enter the machine room 5, which causes a problem that the installation area occupied by the refrigerator becomes large in the room.

That is, since the air behind the cabinet 1 enters and exits the machine room 5 only through the suction holes 6a and the discharge holes 6b formed in the cover 6, and thus heat dissipates the condenser 4 and the compressor 2. When the refrigerator is closely arranged on the indoor wall, the air is not smoothly moved out of the machine room 5, so the compressor 2 is easily overheated and its performance is degraded.

In particular, recently, a built-in type (also called a BUILT-IN refrigerator) in which a refrigerator is embedded in an indoor wall surface is commercially available. In this case, effective heat dissipation of the compressor 2 and the condenser 4 is not achieved.

The present invention is to solve this problem, an object of the present invention is to provide a refrigerator that can effectively heat the compressor and condenser installed in the machine room by improving the air access structure of the machine room irrespective of the arrangement of the refrigerator.

1 is a perspective view showing a machine room structure of a conventional refrigerator.

2 is a perspective view showing the overall structure of a refrigerator to which the present invention is applied.

3 is an exploded perspective view showing the machine room structure of the refrigerator according to the present invention.

Figure 4 shows an extract of the base panel of the refrigerator according to the present invention.

5 is a cross-sectional view taken along the line VV of FIG. 3.

6 is a cross-sectional view taken along the line VI-VI of FIG. 3.

* Description of Signs of Main Parts of Drawings *

10. cabinet 18. machine room

20. Condenser 21. Compressor

22. Cooling fan 40. Base panel

50..Suction duct 60..Exhaust duct

51, 61 duct forming part 52, 62 duct panel

53,63.Support Ribs 54,64.Air Guide

The present invention for achieving this object is;

A refrigerator having a machine room formed in a cabinet for installing a compressor and a condenser therein, and a fan disposed in the machine room to suck external air to cool the compressor and the condenser,

The lower part of the cabinet is characterized in that the suction duct for guiding the air in the front of the cabinet to the machine room, the discharge duct for guiding the air of the machine room to the outside of the cabinet is provided.

In addition, the suction duct is provided so that one end is in communication with the front side of the cabinet and the other end is in communication with one side space of the machine room, which is the suction side of the fan, the discharge duct is one end is in communication with the front side of the cabinet, the other end is the machine room is the discharge side of the fan Characterized in that it is provided in communication with the other side of the space.

In addition, the base panel is provided at the bottom of the cabinet,

The first duct forming part and the second duct forming part are integrally formed on both sides of the base panel so as to communicate with the machine room, and the first duct panel covers the lower part of the first duct forming part and the second duct forming part. And the second duct panel are combined,

The first duct forming unit and the first duct panel are combined to form a suction duct, and the second duct forming unit and the second duct panel are combined to form an exhaust duct.

In addition, the first duct panel and the second duct panel is provided with a support rib for supporting the first duct forming portion and the second duct forming portion to prevent deformation thereof, and the support rib extends in parallel with the air flow direction. It features.

In addition, the other end of the suction duct is provided with a first air guide to be widely dispersed in the air sucked into the machine room, the other end of the discharge duct is characterized in that the second air guide for discharging while collecting the air in the machine room is provided.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings. Briefly, the accompanying drawings, Figure 2 shows the overall structure of the refrigerator according to the present invention, Figures 3 to 6 is an extract of the machine room structure of the refrigerator according to the present invention. (In the embodiment of the present invention, a freezer compartment and a refrigerating compartment will be described as an example of a parallel refrigerator having left and right.)

As shown in FIG. 2, the refrigerator according to the present invention includes a cabinet 10 in which a freezing compartment 11 and a refrigerating compartment 12 are partitioned from side to side, and hinged to a front surface of the cabinet 10. 11) and doors 13 and 14 for opening and closing the refrigerator compartment 12, and refrigeration cycle components for generating cold air and supplying it to the freezer compartment 11 and the refrigerator compartment 12.

The doors 13 and 14 are divided into a left door 13 which opens and closes the freezer compartment 11 and a right door 14 which opens and closes the refrigerating compartment 12, and these are upper and lower sides of one side of the cabinet 10. Is coupled through a hinge. That is, an upper end of one side of the left door 13 and the right door 14 is coupled to the upper part of the cabinet 10 through the upper hinges 15L and 15R, and the left door 13 through the lower hinges 16L and 16R. ) And the bottom of one side of the right door 14 are respectively coupled to the lower cabinet 10.

The cabinet 10 is formed of an enclosure in which the freezing compartment 11 and the refrigerating compartment 12 are divided into left and right sides by an intermediate partition 17. The wall surfaces of the freezing compartment 11 and the refrigerating compartment 12 are urethane for insulation from the outside. The foamed liquid is injection molded to constitute a heat insulating wall (see FIGS. 5 and 6, 19).

Referring to FIG. 3, the rear of the cabinet 10 has a machine room 18 in which refrigeration cycle components and electrical components are installed. That is, the machine room 18 is a predetermined space separated from the freezing chamber 11 and the refrigerating chamber 12, and a condenser 20 for condensing the refrigerant of high temperature and high pressure in one space thereof, and the other space thereof. The compressor 21 is installed to suction and compress the refrigerant in a low pressure state to the condenser 20. In addition, a cooling fan 22 for dissipating the condenser 20 and the compressor 21 by using external air is disposed. The cooling fan 22 is installed between the condenser 20 and the compressor 21.

And a cover 30 for protecting the electrical equipment by closing the opening of the machine room 18 is coupled to the rear of the cabinet 10, the cover 30 is detachably coupled via a plurality of screws 33. In addition, the cover 30 is provided with through holes 31 and 32 for allowing air to enter and exit, which is formed in an area adjacent to the condenser 20 which is the suction side of the cooling fan 22. And discharge holes 32 formed in an area adjacent to the compressor 21 on the discharge side of the cooling fan 22. Accordingly, when the cooling fan 22 is operated, external air enters the machine room 18 through the suction holes 31, and subsequently passes the condenser 20 and the compressor 21 to sequentially discharge the discharge holes 32. To get out of it.

On the other hand, the base panel 40 in the lower part of the cabinet 10, the air in front of the cabinet 10 to the machine room 18 to enter and exit the ducts 50, 60 for heat dissipating the condenser 20 and the compressor 21 There is provided, the detailed structure thereof will be described with reference to FIGS.

First, the base panel 40 of the cabinet 10 is made of a metal plate, and the front edge portion thereof has a roller (not shown) for easily moving the refrigerator, and a leg for separating from the floor while leveling the entire refrigerator horizontally. 41 is installed.

In addition, the base panel 40 has a suction duct 50 for communicating the one front side of the cabinet 10 and the suction side of the cooling fan 22 of the machine room 18, the other front side of the cabinet 10, and the machine room 18. The discharge duct 60 for communicating the discharge side of the cooling fan 22 of the () is formed. The shape of the suction duct 50 and the discharge duct 60 is substantially the same, and are provided side by side to maintain a constant interval.

The first duct forming part 51 and the second duct forming part 61 protrude convexly upwards and extend in the front-rear direction to the base panel 40 to form the suction duct 50 and the discharge duct 60. Is prepared. The first duct forming portion 51 and the second duct forming portion 61 are formed by pressing both sides of the base panel 40. The first duct panel 52 and the second duct panel 62 are provided under the base panel 40 so as to cover the open lower portions of the first duct forming part 61 and the second duct forming part 62. Is combined. The first duct panel 52 and the second duct panel 62 have a plurality of elastic locking jaws 52a and 62a along both edges of the first duct panel 52 and the second duct panel 62 so as to be fitted into the fixing holes 42 drilled in the base panel 40. Dogs are provided.

Therefore, the first duct forming unit 51 and the first duct panel 52 are combined to have one end communicate with one front side of the cabinet 10 and the other end with the suction duct 50 communicated with one side space of the machine room 18. And the second duct forming portion 61 and the second duct panel 62 are combined so that one end communicates with the other front side of the cabinet 10 and the other end communicates with the other space of the machine room 18. Will be achieved. At this time, the front of the suction duct 50 opened to the front side of the cabinet 10 is the inlet end of the air, while the front of the discharge duct 60 is the air outlet end, the suction communicated with the machine room 18 The rear of the duct 50 is the air outlet end while the rear of the exhaust duct 60 is the air inlet end.

In addition, the first and second duct panels 52 and 62 are injection molded from a plastic material, and the plurality of first and second duct panels 52 and 62 respectively protrude upwardly toward the first and second duct forming portions 51 and 61. The support ribs 53 and 63 are integrally molded. Accordingly, when the first and second duct panels 52 and 62 are assembled, the first and second duct forming parts 51 and the second duct forming parts in which the support ribs 53 and 63 are pressed on the base panel 40 are formed. 61 is supported by the first duct forming portion 51 and the foaming pressure in the process of forming a heat insulating wall (19, 5 and 6) of the cabinet 10 by injecting a urethane foam liquid The second duct forming portion 61 is prevented from being deformed. The support ribs 53 and 63 extend in a straight line in the forward and backward directions in the suction duct 50 and the discharge duct 60 so that air does not interfere when passing through the suction duct 50 and the discharge duct 60. It is preferable to construct.

In addition, first and second air guides 54 and 64 are provided at the outlet end of the suction duct 50 and the inlet end of the discharge duct 60 communicating with the machine room 18. The first and second air guides 54 and 64 also extend in the horizontal and vertical directions with a plastic injection molding, which gradually increases the area of the outlet end of the suction duct 50 and the inlet end of the discharge duct 60. By widening the air intake and exhaust is made more smoothly.

Next, the operation of the refrigerator according to the present invention configured as described above and the effects thereof will be described.

First, the cold air generated in the evaporator by the start of the compressor is supplied to the freezing chamber 11 and the refrigerating chamber 12 to exchange heat with the stored food, and the air after the heat exchange is again introduced into the evaporator (not shown) and recooled.

The evaporator is supplied with a refrigerant through the compressor 21 and the condenser 20. That is, the high temperature and high pressure refrigerant discharged from the compressor 21 is supplied to the evaporator in an expanded state so as to evaporate again after the condensation process through the condenser 20, and the refrigerant that has completed the evaporation while generating cold air from the evaporator is It enters the compressor 21 again.

When the cooling fan 22 installed in the machine room 18 operates, external air is sucked into one side of the machine room 18 through the suction hole 31 and the suction duct 50 to cool the condenser 20. The air cooling the condenser 20 is blown to the other space of the machine room 18 to cool the compressor 21. In addition, the air cooled by the compressor 21 is discharged to the outside of the machine room 18 through the discharge holes 32 and the discharge duct 60, thereby dissipating the compressor 21 and the condenser 20.

That is, the air in the rear of the cabinet 10 is sucked into the machine room 18 through the suction holes 31 by the suction blowing force of the cooling fan 22, and the air in front of the cabinet 10 is connected to the suction duct 50. It is sucked into the space on one side of the machine room 18 through the 1st air guide 54 (arrow F1 direction of FIG. 5). And the suction air is joined to cool the condenser 20 and the compressor 21 sequentially.

After the cooling operation, some air is discharged to the rear of the cabinet 10 again through the discharge holes 32, and the remaining air is discharged to the front of the cabinet 10 through the second air guide 64 and the discharge duct 60. It is discharged (in the direction of the arrow F2 in Fig. 6).

At this time, the air entering the machine room 18 through the outlet end of the suction duct 50 and the first air guide 54 is widely dispersed while effectively condensing the condenser 20. After the cooling operation is completed, the air to escape from the machine room 18 is easily discharged toward the cabinet 10 through the discharge duct 60 while being collected through the second air guide 64.

Accordingly, even when the refrigerator is disposed adjacent to the interior wall surface, air is easily introduced into and out of the machine room 18 through the suction duct 50 and the discharge duct 60 to facilitate heat dissipation of the compressor 21 and the condenser 20. .

In particular, even when the refrigerator is installed as a built-in type (BUILT-IN type), air in front of the cabinet 10 is sucked into the machine room 18 to radiate the compressor 21 and the condenser 20, thereby reducing their performance. You can prevent it.

As described above in detail, the refrigerator according to the present invention includes a suction duct in which one side space of the machine room communicates with the cabinet front side, and an exhaust duct in communication with the other side space of the machine room and the front side of the cabinet.

Therefore, when the cooling fan in the machine room is operated, the air in the front side of the cabinet is sucked into the machine room through the suction duct to sequentially cool the condenser and the compressor, and the air cooling the condenser and the compressor is discharged to the front side of the cabinet through the exhaust duct. . Therefore, regardless of the installation location of the refrigerator, the air in and out of the machine room is smooth, and the heat dissipation of the compressor and the condenser is effective, as well as the effect of improving the overall product reliability of the refrigerator.

Claims (6)

In the refrigerator having a machine room formed in a cabinet so that the compressor and the condenser is installed inside, and a fan disposed in the machine room to suck external air to cool the compressor and the condenser, A suction duct having one end communicating with the front side of the cabinet and the other end communicating with one side space of the machine room, which is the suction side of the fan, to guide the air in front of the cabinet to the machine room in the lower part of the cabinet; In order to guide the air to the outside of the cabinet, one end is in communication with the front side of the cabinet and the other end is provided with a discharge duct in communication with the other space of the machine room, the discharge side of the fan, The other end of the suction duct is provided with a first air guide for dispersing the air sucked into the machine room widely, and the other end of the discharge duct is provided with a second air guide for discharging while collecting the air in the machine room Refrigerator. delete The method of claim 1, A base panel is provided below the cabinet, The first duct forming portion and the second duct forming portion are formed integrally on both sides of the base panel so as to communicate with the machine room, and cover the lower portion of the first duct forming portion and the second duct forming portion. The first duct panel and the second duct panel are combined, And the first duct forming portion and the first duct panel are combined to form the suction duct, and the second duct forming portion and the second duct panel are combined to form the discharge duct. The method of claim 3, wherein And a support rib provided on the first duct panel and the second duct panel to support the first duct forming portion and the second duct forming portion to prevent deformation thereof. The method of claim 4, wherein The support ribs, characterized in that extending in parallel with the flow direction of air. delete