KR100688975B1 - Refrigerator - Google Patents

Abstract

A refrigerator is provided to modify an air path structure for preventing air, of which temperature is increased while cooling a mechanical chamber, from being supplied into the mechanical chamber again. A refrigerator includes a lower cabinet(3) forming a lower part of a main body cabinet and coupled with a mechanical chamber case(8). A guide element(70) is mounted to the lower cabinet downward and defining an inlet path for inhaling air into the mechanical chamber and an outlet path for discharging air from the mechanical chamber. A bottom plate(40) of the mechanical chamber case has an inlet(61) and an outlet respectively connected to the inlet path and the outlet path, and a folded part inclined upward by a predetermined angle.

Description

Refrigerator {REFRIGERATOR}

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

2 is an exploded perspective view of a lower cabinet and a machine room area according to the present invention;

3 is an exploded rear perspective view of the machine room region shown in FIG. 2;

4 is a perspective view of a back plate according to the present invention;

5 is a cross-sectional view of the lower cabinet and the machine room area according to the present invention;

6 is a rear view of the lower cabinet and machine room area according to the present invention.

Explanation of symbols on the main parts of the drawings

 1: refrigerator 2: body cabinet

 3: lower cabinet 3a: inflow passage

 3b: discharge passage 3c: guide member insert

 8: Machine Room Case 8a: Machine Room

 10: front panel 12: heat dissipation fan

 30: rear panel 31a, 31b: inflow hole

 32a, 32b: discharge hole 33: inflow guide

 34: discharge guide 40: bottom plate

 50: bottom plate main body 60: bent portion

 61 inlet port 62 outlet

 63: insertion portion 70: guide member

 80: blocking member 81: blocking unit body

 82: wing

The present invention relates to a refrigerator, and more particularly, to a refrigerator having an improved flow path structure of air for cooling a machine room accommodating a compressor and a condenser.

Generally, a refrigerator compresses a gas refrigerant of low temperature and low pressure into a gas state of high temperature and high pressure, a condenser that condenses the gas refrigerant of high temperature and high pressure flowed from the compressor into a liquid refrigerant, and reduces the refrigerant flowing from the condenser. And a refrigerating cycle including a capillary tube and an evaporator for evaporating the refrigerant having passed through the capillary to a low temperature in a low pressure state to absorb heat therein.

The refrigerator is provided with an area for partitioning the compressor and the condenser so that the cooling performance is not lowered due to the high temperature heat generated from the compressor and the condenser. Usually, the area which partitions such a compressor and a condenser is called a machine room.

The machine room is provided with a compressor, a condenser, and a heat dissipation fan for circulating air for heat dissipation in the machine room. The rear or bottom of the machine room is provided with an inlet through which air is introduced and an outlet through which air introduced into the machine room is circulated by the heat radiating fan and discharged into relatively hot air.

However, the inlet and outlet of the conventional machine room is disposed in the adjacent position, there is a problem that the hot air discharged to the outlet is re-sucked into the inlet to reduce the heat dissipation performance in the machine room. In addition, the inlet and the outlet are provided in some areas such as the rear cover or the bottom of the machine room, there is a problem that does not introduce enough air to heat the machine room.

Accordingly, an object of the present invention relates to a refrigerator in which an air flow path structure is improved so as to prevent hot air that has cooled the machine room from being re-intake into the machine room.

In addition, another object of the present invention is to improve the structure of the machine room so that sufficient air flows into the machine room.

According to the present invention, in the refrigerator having a machine chamber case coupled to the main cabinet and the main cabinet, and including a front plate and a rear plate and a bottom plate, to form a machine room for receiving a compressor and a condenser, A lower cabinet forming a bottom of the main cabinet and coupled to the machine room case; It is installed downward in the lower cabinet, and includes a guide member for partitioning the inlet flow path from the front of the machine room case into the machine room and the discharge flow path discharged from the machine room to the front of the machine room case, the bottom plate is The inlet and the outlet are formed so as to communicate with the inflow passage and the discharge passage is achieved by a refrigerator comprising a bent portion inclined upward at a predetermined angle toward the front of the refrigerator.

Here, the guide member includes an extension extending to the rear of the bent portion, the blocking member for partitioning the space between the bent portion of the front plate and the bottom plate may be coupled to the upper portion.

The blocking member may include a blocking unit body which is in close contact with the front plate of the machine room case and a wing unit which is extended from the blocking unit body and coupled to the bent portion.

The apparatus may further include a heat dissipation fan provided between the compressor and the condenser in the machine room to forcibly blow air introduced from the inflow passage to the discharge passage. A plurality of inlet holes through which air is introduced and a plurality of outlet holes through which air in the machine room is discharged to the outside can be formed, thereby improving the amount of air flowing into the machine room.

Here, by further comprising a sealing member for closely coupling the heat radiating fan to the front plate and the bent portion, it is possible to prevent the vortex generated in the machine room.

On the other hand, the inlet hole is formed to be inclined toward the radiating fan protruding to guide the flow of air to the machine room, and the outlet hole is formed to be inclined toward the radiating fan from the plate surface protruding from the machine room By further including a discharge guide for guiding the flow of air to the outside, it is possible to improve the flow of air to the machine room.

Hereinafter, with reference to the accompanying drawings of a side-by-side refrigerator (Side by Side) as an embodiment of the present invention will be described in detail with respect to the present invention. However, it is known in advance that it may be applied to a TMF type (Top Mounted Freezer) refrigerator or a BMF type (Bottom Mounted Freezer) refrigerator.

As shown in FIG. 1, the refrigerator 1 according to the present invention is coupled to a main cabinet 2, which forms a storage compartment 4, and a main cabinet 2 so that a compressor 11 and a condenser (not shown) are provided. A machine chamber case 8 having a machine chamber 8a to receive therein, a lower cabinet 3 coupled to the machine chamber case 8, a guide member 70 installed in the lower cabinet 3 and the machine chamber case 8, and Blocking member 80 is included.

The main body cabinet 2 includes an outer casing 2a made of metal to form an outer appearance, and an inner casing 2b forming a storage chamber 4. Here, between the outer casing 2a and the inner casing 2b of the main cabinet 2, a blower fan 7 for blowing cool air generated from the evaporator 6 and the evaporator 6 to the storage compartment 4. ) Is arranged, and the lower part is provided with a mechanical chamber 8a for accommodating the compressor 11 and the condenser. Further, a foaming agent 2c is filled and formed to insulate the storage compartment 4 between the outer casing 2a and the inner casing 2b of the main body cabinet 2. The front surface of the main cabinet 2 is open to the storage compartment 4 so that food can be introduced and withdrawn, and the front door 5 is provided to open and close the storage compartment 4. A lower hinge (not shown) of the door 5 is mounted to the lower part of the main cabinet 2, and a lower cabinet 3 to be described later, which is coupled to the machine room case 8, is installed.

The storage chamber 4 forms a predetermined space for storing food, and the front door is coupled with a door 5 for pivoting the upper hinge (not shown) and the lower hinge to the shaft to prevent leakage of cold air. In addition, the storage compartment 4 is provided with a shelf 4a partitioned into a plurality of spaces for easy storage of food, and a separate storage drawer 4b is arranged to store foods that easily evaporate moisture such as vegetables. .

As shown in FIG. 2, the lower cabinet 3 covers a region of the bottom of the main cabinet 2, and a lower hinge to which the door 5 is rotatably coupled is provided. The lower cabinet 3 is coupled to the machine room case 8, which will be described later, and an inflow path 3a through which air is introduced into the machine room 8a and a discharge path through which hot air is discharged from the machine room 8a to the outside ( 3b) is formed. Between the inflow and outflow paths (3a, 3b) of the lower cabinet (3) is provided with a guide member 70 to be described later to partition the inflow passage (3a) and the discharge passage (3b). On the bottom of the lower cabinet 3, a guide member inserting portion 3c in which the guide member 70 is installed is provided.

3 and 4, the machine room case 8 according to the present invention includes a compressor 11 and a condenser, and a heat radiating fan 12 (see FIG. 5) for radiating the compressor 11 and the condenser. . Here, as an example of the present invention, the heat radiating fan 12 installed in the machine room case 8 is provided in a suction type interposed between the compressor 11 and the condenser to suck air from the condenser. However, the heat radiating fan 12 disposed in the machine room 8a may also be provided as a blowing type for blowing air toward the compressor 11 and the condenser from the rear of the condenser. In addition, the heat radiating fan 12 is coupled using the sealing member 12a to be closely coupled to the front plate 10 and the bent portion 60 of the machine room case 8 to be described later.

The machine room case 8 includes a front plate 10 and a rear plate 30 forming front and rear sides, a pair of side plates 20 coupled to both sides of the front plate 10 and the back plate 30, and The top plate 21 and the bottom plate 40 are coupled to the top and bottom surfaces of the front plate 10 and the rear plate 30 to form a machine room 8a.

As an example of the present invention, the front plate 10 has a curved surface such that air introduced into the inflow passage 3a of the lower cabinet 3 flows smoothly in the machine room case 8. However, the front plate 10 may be manufactured not only in a curved shape but also in various shapes such as squares and triangles by a manufacturing process. One end of the front plate 10 is coupled to the lower cabinet 3 by a mechanical press-fit method, but the method of coupling may be used in various ways such as fastening with a screw.

The bottom plate 40 communicates with the inflow passage 3a of the lower cabinet 3 and communicates with the inflow port 61 through which air flows into the machine chamber 8a, and with the discharge passage 3b and with air from the machine chamber 8a. A discharge port 62 through which is discharged is formed. The bottom plate 40 is provided in a plate shape, a plurality of inlet holes 31b through which air flows into the heat radiating fan 12 on the plate surface, and a discharge hole 32b through which relatively high-temperature air flows from the machine room 8a is discharged. An inlet 61 which is bent at a predetermined angle from the perforated bottom plate body 50 and one region of the bottom plate body 50 and communicates with the inflow and discharge passages 3a and 3b of the lower cabinet 3 described above; It includes a bent portion 60 is formed with an outlet (62). In addition, the bottom plate main body 50 is provided with a compressor coupling part 52 (see FIG. 6) to which the compressor 11 is seated and fixed.

Here, the bent portion 60 is provided with an insertion portion 63 into which the blocking member 80, which will be described later, is inserted and fixed. Wheels 51 are provided at both sides of the bottom plate 40 so that the refrigerator 1 can be easily moved when moving to another place or installation place. As described above, the bent part 60 has an inlet 61 and an outlet 62 provided at the bent part 60 connected to the inlet passage 3a and the outlet passage 3b provided at the bottom of the lower cabinet 3. It is bent at a predetermined angle toward the lower cabinet (3) to facilitate the flow of air through. In addition, a wing portion 82 of the blocking member 80 is inserted between the inlet 61 and the outlet 62 of the bent portion 60 to be discharged from the space between the front plate 10 and the bent portion 60. The insert 63 is provided to prevent air from flowing into the inlet 61.

The rear plate 30 covers the rear of the machine room case 8 to protect the compressor 11, the condenser and the heat radiating fan 12 accommodated in the machine room case a. The back plate 30 has an inlet hole 31a through which air is introduced toward the heat dissipation fan 12 in the same manner as the inlet hole 31b and the outlet hole 32b formed in the bottom plate body 50, and the machine room 8a. A discharge hole 32a through which relatively high temperature air is discharged is formed. The inlet hole 31a and the outlet hole 32a of the rear plate 30 are guided so that the air in the inlet guide 33 and the machine room case 8 which guide the inflow of air toward the heat radiating fan 12 are discharged to the outside. A discharge guide 34 is provided.

Inflow guide 33 is an example of the present invention, is formed to be inclined toward the heat radiating fan 12 protruding around the inlet hole (31a) to guide the flow of air to the machine room (8a), but in various shapes such as curved It may protrude to guide the flow of air. In addition, the inflow guide 33 is an example of the present invention, but is formed to protrude toward the inside of the machine room (8a), it may be formed to protrude out of the plate surface of the rear plate (30).

The discharge guide 34 is inclined toward the heat radiating fan 12 from the plate surface around the discharge hole 32a to protrude so that the hot air cooling the condenser and the compressor 11 from the inside of the machine room case 8a to the outside. Guide it to flow.

As described above, the inflow guide 33 and the discharge guide 34 are provided in the inlet hole 31a and the outlet hole 32a of the rear plate 30, but are formed in the bottom plate body 50. The inlet guide 33 and the outlet guide 34 may protrude from the periphery of the ball 31b and the outlet hole 32b.

The guide member 70 is provided in the lower cabinet 3 to partition the inflow passage 3a and the discharge passage 3b, and to block the air flowing through the discharge passage 3b from flowing into the inflow passage 3a. Is installed. The guide member 70 disposed to partition the inflow passage 3a and the discharge passage 3b at the bottom of the lower cabinet 3 is provided with an extension portion extending between the lower cabinet 3 and the bent portion 60. Here, the extension portion is not a specific configuration of the guide member 70, but because the bottom plate 40 is bent to generate a space between the lower cabinet 3 and the bent portion 60, the term referring to the guide member provided in this space to be. And, on the upper side of the extended extension of the guide member 70, a blocking member 80 for partitioning the space between the lower cabinet 3 and the bent portion 60 is provided.

That is, as shown in FIG. 5, the blocking member 80 is in contact with the front plate 10 of the machine room case 8 to be in close contact with the body part 81, and extends from the blocking part body to bend the part 60. It includes a wing portion 82 is inserted and coupled to the insertion portion (63) of. The blocking member 80 partitions the inlet 61 and the outlet 62 formed in the bottom plate 40 communicating with the inlet passage 3a and the outlet passage 3b. The structure of the blocking member 80 is an inlet 61 through which air is introduced from the bottom of the machine room case 8 and a discharge port through which hot air cooled by the compressor 11 and the condenser is discharged in the machine room case 8 ( 62) to prevent re-suction of hot exhaust air into the inlet (61).

Looking at the operation and installation process of the refrigerator 1 by such a configuration as follows.

When the refrigerator 1 is operated, the compressor 11 compresses the gas refrigerant into gas refrigerant of high temperature and high pressure, and the gas refrigerant compressed from the compressor 11 is condensed into the liquid refrigerant while passing through the condenser. It is decompressed in a capillary tube (not shown) and vaporized in an evaporator to generate cold air.

The compressor 11 for compressing the gas refrigerant into a gas refrigerant having a high temperature and a high pressure and the condenser that condenses the gas refrigerant are divided into a machine room 8a because high temperatures can be generated to reduce the cooling performance of the evaporator 6. . Since the machine room 8a is elevated to a high temperature by the operation of the compressor 11 and the condenser, it is necessary to cool the compressor 11 and the condenser by circulating the air introduced into the radiating fan by introducing air from the outside.

As shown in FIG. 6, the bottom of the lower cabinet 3 has an inflow passage 3a through which air is introduced into the machine room 8a and a compressor 11 and a condenser by the heat radiating fan 12 in the machine room 8a. A discharge flow path 3b through which the hot air having cooled the air is discharged to the outside is formed. Since the air discharged to the discharge passage 3b during the heat dissipation process can be re-adsorbed into the inlet passage 3a, the inlet passage 3a and the discharge passage 3b are divided by the guide member 70 so that the high-temperature discharge air is discharged. It is prevented to re-intake into the inflow passage (3a).

In addition, a plurality of inlet holes 31a and 31b and outlet holes 32a and 32b are formed in the rear plate 30 and the bottom plate 40 in another configuration of the present invention, so that the compressor 11 in the machine room 8a is provided. And sufficient air is introduced to allow sufficient heat dissipation of the condenser. Here, an inflow guide 33 protruding from the inlet hole 31a of the rear plate 30 so that air is introduced into the heat dissipation fan, and a high temperature from the machine room 8a to the outside of the outlet hole 32a. The discharge guide 34 protrudes to guide the air, thereby improving heat dissipation performance of the machine room 8a. In addition, the bottom plate 40 has an inlet hole 31b and a discharge hole 32b provided toward the lower portion, and an inlet 61 communicating with the air flowing from the lower cabinet 3 to sufficiently flow into the machine room 8a. A discharge port 62 through which hot air is discharged from the outside is formed in the bent portion 60 bent at a predetermined angle with respect to the plate surface of the bottom plate 40. Here, since a space is generated between the lower cabinet 3 and the bent portion 60, the blocking member 80 for partitioning between the lower cabinet 3 and the bent portion 60 on the upper side of the guide member 70 is Prepared.

Thus, the inflow passage and the discharge passage are provided from the lower cabinet to the machine room case, and the bottom plate constituting the machine room case has an inlet and an outlet communicating with the inflow passage and the discharge passage at a bent portion that is bent at a predetermined angle. It is possible to smooth the flow of air to the furnace. In addition, the inflow passage and the discharge passage of the lower cabinet are partitioned by the guide member and partitioned between the inlet and the outlet of the bent portion communicating with the inflow passage and the discharge passage with a blocking member to prevent re-intake of the high-temperature exhaust air. Accordingly, the heat dissipation performance is improved, resulting in an 8% improvement in power consumption.

As described above, according to the present invention, the inlet and outlet communicating with the air inlet flows into the machine room and the discharge flow path through which the hot air is discharged are formed in the bent bottom plate, thereby smoothly flowing the air into the machine room. can do. Further, by preventing the re-suction of the hot air discharged by partitioning between the inflow passage and the discharge passage and the inlet and the outlet, a refrigerator capable of improving heat dissipation performance is provided.

In addition, another effect of the present invention is to improve the heat dissipation performance by providing a plurality of inlet and outlet holes and inlet and outlet guides for guiding air in the inlet and outlet holes in the machine room case, Accordingly, power consumption can be improved.

Claims (7)

A refrigerator having a main body cabinet and a machine room case coupled to the main body cabinet and including a front plate and a rear plate and a bottom plate to form a machine room for accommodating a compressor and a condenser, A lower cabinet forming a bottom of the main cabinet and coupled to the machine room case; A guide member installed downwardly in the lower cabinet to define an inflow passage through which air is introduced into the machine chamber from the front of the machine chamber case and a discharge passage discharged from the machine chamber to the machine chamber case; The bottom plate is a refrigerator, characterized in that the inlet and the discharge port is formed so as to communicate with the inflow passage and the discharge passage and comprises a bent portion inclined upward at a predetermined angle toward the front of the refrigerator. The method of claim 1, The guide member includes an extension extending to the rear of the bent portion, Refrigerator, characterized in that the blocking member for blocking the space between the front plate and the bent portion of the bottom plate is coupled to the upper side. The method of claim 2, The blocking member, And a blocking unit body in close contact with the front plate of the machine room case and a wing unit extending from the blocking unit body and coupled to the bent portion. The method of claim 1, A heat dissipation fan provided between the compressor and the condenser in the machine room to forcibly blow air introduced from the inflow passage to the discharge passage; And a plurality of inflow holes through which air from the outside flows in the bottom plate and the rear plate, and a plurality of discharge holes through which air in the machine room is discharged to the outside. The method of claim 4, wherein The refrigerator further comprises a sealing member for tightly coupling the heat radiating fan to the front plate and the bent portion. The method of claim 4, wherein And a inflow guide formed around the inflow hole so as to be inclined toward the heat radiating fan to guide the flow of air to the machine room. The method of claim 4, wherein And a discharge guide formed around the discharge hole inclined toward the heat radiating fan from the plate surface to guide the flow of air from the machine room to the outside.

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