JPH0861825A - refrigerator - Google Patents

Abstract

(57) [Summary] [Object] To provide a refrigerator having a structure in which a compressor is provided on the upper part of the body of the refrigerator and the air for cooling the compressor can be easily supplied and discharged. [Configuration] Machine room 14 provided with a compressor 24 and a fan 22
A duct 30 for forcibly sucking and discharging air into the machine room 14 by a fan 22 is arranged above the main body 12 of the refrigerator 10, and the duct 30 is divided into upper and lower two stages. An air suction port 26 is provided between the chamber 14 and the air duct 28, an air exhaust port 28 is provided between the upper duct 34 and the machine chamber 14, and an opening of the duct 30 is provided on the front surface of the main body 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator, and more particularly to a refrigerator provided with a compressor on an upper portion thereof.

[0002]

2. Description of the Related Art Conventionally, in order to effectively use the bottom portion of the body of a refrigerator, there is a refrigerator in which a compressor is not provided in the bottom portion but a compressor is provided in the upper portion of the body.

As a first type of such a refrigerator, there is one as shown in FIG.
1880).

That is, the compressor 310 is provided at the rear of the upper portion of the main body 312 of the refrigerator 300, and the air suction port 31 is provided at the bottom of the main body 312 to cool the compressor 310.
4 and the duct 316 is provided on the back surface. And
The air sucked from the suction port 314 at the bottom is supplied to the compressor 310 through the duct 316 on the back surface to cool it. The air that has cooled the compressor 310 is exhausted from the rear portion of the upper portion.

As a second type of refrigerator, there is one as shown in FIG. 17 (Shokai 60-156378).
issue).

That is, the compressor 410 is provided at the rear of the upper part of the main body 412 of the refrigerator 400, and the condenser 41 is provided in front of it.
4 is provided. Then, the condenser 414 and the compressor 41
The air for cooling 0 is sucked in from the front of the upper part and exhausted from the rear.

[0007]

However, in the refrigerator 300 of the first type, since the duct 316 needs to be provided on the back surface of the main body 312, the structure of the main body 312 becomes complicated and the structure of the main body 312 is reduced. Since air is taken from the bottom, there is a problem that air is difficult to flow. Also,
Since the exhausted air is exhausted from the ceiling surface of the main body 312, there is a problem that an object cannot be placed on the ceiling surface of the refrigerator 300.

Also, in the refrigerator 400 of the second type, since air is exhausted from the rear portion of the ceiling surface, there is a problem that an object cannot be placed on the ceiling surface.

Therefore, in view of the above problems, the present invention provides a refrigerator having a structure in which a compressor is provided on the upper part of the body of the refrigerator and air for cooling the compressor can be easily supplied and discharged. .

[0010]

A refrigerator according to claim 1 of the present invention comprises a machine room provided with a compressor and a fan, and a duct for forcibly sucking and exhausting cooling air into the machine room by the fan. Is provided on the upper part of the body of the refrigerator, the opening of the duct is provided on the front surface of the body, the duct is divided into upper and lower stages, and the lower duct is for air intake,
The upper duct is used for air exhaust, an air suction port is provided between the lower duct and the machine room, and an air exhaust port is provided between the upper duct and the machine room.

A refrigerator according to a second aspect of the present invention is the refrigerator according to the first aspect, wherein a condenser is provided inside the lower duct apart from a bottom portion of the lower duct.

A refrigerator according to a third aspect is the refrigerator according to the second aspect, wherein an auxiliary heat exchanger for radiating a compressor is provided inside the upper duct.

A refrigerator according to a fourth aspect of the present invention is the refrigerator according to the second aspect, wherein a flat wire condenser for a condenser is provided inside the lower duct, and is inclined forward and upward with respect to a horizontal plane.

According to a fifth aspect of the present invention, in the refrigerator according to the third aspect, a flat wire capacitor for an auxiliary heat exchanger for radiating a compressor is provided inside the upper duct, and is inclined forward and downward with respect to a horizontal plane. It is a thing.

According to a sixth aspect of the present invention, in the refrigerator of the first aspect, the width of the lower duct is formed so that the rear portion is narrower than the front portion and the height is formed so that the rear portion is higher than the front portion. is there.

According to a seventh aspect of the present invention, in the refrigerator of the sixth aspect, a wire condenser for a condenser is provided inside the lower duct, and a wire condenser for an auxiliary heat exchanger for radiating a compressor is provided inside the upper duct. The wire capacitor is formed such that its width is smaller at the rear part than at the front part, and
The height of the rear part is higher than that of the front part.

The refrigerator according to claim 8 is the refrigerator according to claim 7, wherein the wire capacitor is formed by cutting a part of the wire of one plane-shaped wire capacitor and connecting the wire capacitors by a pipe of the wire capacitor. Forming two planar wire capacitors, gradually reducing the width of each of the planar wire capacitors, and bending the wires of each of the wire capacitors so that the height gradually increases. It is formed into a three-dimensional shape.

[0018]

[Operation] The refrigerator according to claim 1 will be described.

When the fan is rotated, air is sucked through the opening in the front surface of the duct, and this air passes through the lower duct and is sucked into the machine room through the air suction port. The sucked air is discharged to the upper duct from the air exhaust port after cooling the compressor. The exhausted air passes through the upper duct and is exhausted from the opening in the front surface of the duct.

In the refrigerator of the second aspect, since the condenser is provided inside the lower duct, the condenser is cooled by the air passing through the lower duct. Further, in this case, since the condenser is provided apart from the bottom, the air passes through the lower side of the condenser and then cools the condenser, so that the main body is generated by the heat of the air warmed by the condenser. Has little effect on

According to the third aspect of the present invention, since the auxiliary heat exchanger for radiating the compressor (hereinafter, simply referred to as an oil condenser) is provided inside the upper duct, it is cooled by the air passing through the upper duct. .

According to the fourth aspect of the present invention, since the planar wire condenser for the condenser is provided inside the lower duct in a manner inclined with respect to the horizontal plane, the amount of air hitting the wire condenser increases and is discharged. The amount of heat increases and its cooling effect increases. Further, since the wire capacitor is provided in the upper part of the front, the air that has entered through the opening passes through the wire capacitor from the lower part to the upper part. Therefore, the influence of the heat of the air warmed by the wire condenser on the upper portion of the main body is small.

In the refrigerator according to the fifth aspect, since the wire condenser for the oil condenser is provided in the upper duct in a tilted manner, the amount of air hit increases, the amount of heat radiation increases, and the cooling effect increases. Further, since the wire condenser is provided in the front lower direction, the air exhausted from the air exhaust port passes through the wire condenser from the lower side to the upper side and is cooled. Therefore, the lower duct is less affected by the heat of the air warmed by the wire condenser.

In the refrigerator according to the sixth aspect, since the width of the lower duct is formed so that the rear portion is narrower than the front portion and the height is formed so that the rear portion is higher than the front portion, the lower duct is cut off. The area gradually decreases toward the rear and reaches the air suction port. Therefore, the pressure loss at the air suction port can be reduced. Therefore, the air flows smoothly.

The wire capacitor of the refrigerator according to claim 7 is
The width of the rear portion is smaller than that of the front portion, and the height of the rear portion is higher than that of the front portion.
You can attach a wire capacitor to the lower duct of the.

The wire capacitor for a refrigerator according to claim 8 is
A part of the wire of one plane-shaped wire capacitor is cut, and a plurality of plane-shaped wire capacitors connected by the pipe of the wire capacitor are formed, and the width of each of the plane-shaped wire capacitors is gradually increased. Since the wire capacitors of the respective planar shapes are bent to have a three-dimensional shape so that the wire capacitors are made smaller and the height thereof is increased stepwise, the wire capacitor according to claim 7 can be easily assembled.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A refrigerator 10 according to a first embodiment of the present invention will be described below with reference to FIGS.

Reference numeral 12 is a machine room provided at the rear of the upper portion of the main body 12 of the refrigerator 10. The inside of the machine room 14 is divided by the partition plate 16 into a left compartment 18 and a right compartment 20.
It is divided into and. The partition plate 16 is provided with a fan 22, and the right compartment 20 is provided with a cylindrical compressor 24. An air suction port 26 is provided on the lower left side of the left compartment 18 and an air exhaust port 28 is provided on the upper right side of the right compartment 20.

Reference numeral 30 is a duct provided at the front of the upper portion of the main body 12, that is, at the front of the machine room 14. The duct 30 is divided into an upper duct 34 and a lower duct 36 by a horizontal partition plate 32. The air intake port 26 is open on the rear surface of the lower duct 36, and the air exhaust port 28 is open on the rear surface of the upper duct 34.

Reference numeral 38 is an opening opening at the front of the upper duct 34, and the opening 38 is provided with an upward louver 40.

Reference numeral 42 is an opening opening to the front surface of the lower duct 36, and the opening 42 is provided with a downward louver 44.

Reference numeral 56 is a wire condenser for the condenser provided in the lower duct 36. The wire condenser 56 is formed by bending a pipe 58 through which the refrigerant flows into a U shape into a plate shape, and connecting the pipes 58 bent into the plate shape with a heat radiating wire 60. . Both ends of the pipe 58 of the wire condenser 56 are connected to the compressor 24. The wire condenser 56 is provided in the lower duct 36 with an inclination upward with respect to the horizontal plane (see FIG. 5).

Reference numeral 62 is a plate-shaped wire capacitor for an oil capacitor, and its structure is the same as that of the wire capacitor 56. The wire condenser 62 is provided in the upper duct 34 so as to be inclined forward and downward with respect to the horizontal plane (see FIG. 5). The oil condenser protrudes from the compressor 24 and is cooled in the compressor 2
Returning to step 4, the compressor 24 is radiated. Also, the oil condenser has a higher temperature than the condenser.

The wire condenser 62 for the oil condenser is arranged in the upper duct 34, and the wire condenser 56 for the condenser is arranged in the lower duct 36 because the wire condenser 62 for the oil condenser is condensed. This is because the temperature is higher than that of the wire capacitor 56 for machines, and the heat is prevented from being transmitted to the main body 12.

A method of cooling the compressor 24 in the refrigerator 10 will be described.

When the fan 22 is rotated, air is sucked from the louver 44 on the lower side, and this air is absorbed by the lower duct 36.
Through the air inlet 26 to the left compartment 1 of the machine room 14.
Enter 8. When passing through the lower duct 36, the wire condenser 56 is cooled (see FIG. 3). The air that has entered the left compartment 18 reaches the right compartment 20 through the fan 22 and cools the compressor 24. This air is the air exhaust port 2
8 is exhausted and reaches the upper duct 34. The wire condenser 62 is cooled when passing through the upper duct 34.
The air that has passed through the upper duct 34 is exhausted to the outside from the upper louver 40 (see FIG. 4).

The temperature of the air passing through the lower duct 36 is
Since it is before cooling the compressor 24, the temperature is lower than that of the air passing through the upper duct 34, and the influence on the main body 12 is small.

Since the wire capacitors 56 and 62 are provided so as to be inclined, the amount of air contacting them increases, and the amount of heat radiation increases. Therefore, the cooling effect is enhanced (see FIG. 5).

Since the wire condenser 56 provided inside the lower duct 36 is provided so as to be inclined forward and upward, the cooling air that has entered through the opening 42 will not pass through the wire condenser 5
Exit from the bottom of 6 to the top. As it escapes, the air
The temperature of the wire capacitor 56 rises to cool it. Therefore, the temperature of the air flowing below the wire condenser 56 is lower than that of the air flowing above it. Therefore, as the temperature is lower, the heat has less influence on the ceiling surface of the main body 12 (see FIG. 5). That is, the ceiling surface of the main body 12 is not warmed by the air, and the temperature inside the refrigerator does not rise.

Further, the wire condenser 62 provided inside the upper duct 34 is also inclined forward and downward, and the air exhausted from the air exhaust port 28 passes through the wire condenser 62 from the lower side to the upper side. Similarly, the heat of the air warmed by the wire condenser 62 has little effect on the upper duct 36 (see FIG. 5).

Since the lower louver 44 is provided downward and the upper louver 40 is provided upward, the upper louver 40 is provided.
The warmed air exhausted from the louver 4 on the lower side again
4 is not sucked in, and the warmed air diffuses upward, so that it is not sucked in from the louver 40 on the lower side as well.

Since only the upper and lower ducts 30 are provided in the machine room 14, the structure is simple.

The refrigerator 100 of the second embodiment will be described with reference to FIGS. In addition, the same numbers are used for the same members as the refrigerator 10 of the first embodiment.

The difference between the refrigerator 100 of the present embodiment and the refrigerator 10 of the first embodiment is that the duct 130, the air suction port 126, the air exhaust port 128 and the wire condenser 15 are provided.
6, 162 structure.

The front portion of the duct 130 of this embodiment is vertically divided by the first horizontal partition plate 164.
The rear part of 30 is divided into left and right parts by a second vertical partition plate 166. Further, a third partition plate 168 is provided upward from the left end of the rear end of the first partition plate 164, and a fourth partition plate 17 is provided downward from the right end of the rear end of the second partition plate 166.
0 is provided. As a result, the lower duct 136
The front part occupies the lower part of the duct 130 and the rear part occupies the left part. Upper duct 134
Occupy its upper portion at the front of duct 130 and its right portion at its rear.

As a result, the lower duct 136 has a wide width and a low height in the front portion. On the other hand, in the rear part, the width is narrow and the height is high.

Similarly, the upper duct 134 has a wide front portion and a low front portion. On the other hand, in the rear part, the width is narrow and the height is high.

The air suction port 126 is provided throughout the height direction of the left compartment 18. Also, the air exhaust port 1
Similarly, 28 is provided over the entire height of the right compartment 20.

As shown in FIG. 9, the wire capacitor 156 has a front portion 156a formed in a planar shape and a rear portion 156b formed in a three-dimensional shape. As a result, the wire condenser 156 is connected to the lower duct 136.
In the case of fitting into the bottom of the lower duct 136, the front portion 156a having a planar shape is attached to the front portion of the lower duct 136, and
Are attached to the rear part of the lower duct 136.

Similarly, the wire capacitor 162 is also
The front part is formed in a planar shape, and the rear part is formed in a three-dimensional shape, and is fitted into the upper duct 134.

In the refrigerator 100 having the above structure, the case where the compressor 24 is cooled will be described.

When the fan 22 is rotated, the opening 142 is opened.
Air is sucked in from and passes through the lower duct 136. In this case, the front portion of the lower duct 136 has a wide width and a low height, while the rear portion has a narrow width and a high height, so that the change in the cross-sectional area of the lower duct 136 is small,
Pressure loss can be reduced when the air is sucked into the air suction port 126.

The air that has entered the machine chamber 14 cools the compressor 24 and is exhausted from the air exhaust port 128.

The air exhausted from the air exhaust port 128 passes through the upper duct 134 and is exhausted from the opening 138. In this case, in the vicinity of the air exhaust port 128, the width of the upper duct 134 is narrow and the height is high, while
Since the width of the front portion is wide and the height of the front portion is low, it is possible to reduce the pressure loss when exhausting from the air exhaust port 128. Further, since the pressure loss is small, the air is smoothly circulated.

Further, the air passing through the lower duct 136 surely cools the wire condenser 156, and the air passing through the upper duct 134 surely does.
Cool 62.

In the second embodiment, the shapes of the upper duct 134 and the lower duct 136 are changed in width and height in two steps, but instead of this, the width is divided into a plurality of steps in a finer manner. And the height may be changed.

Next, a method of manufacturing the wire capacitor 156 will be described.

A pipe 158 through which the refrigerant passes is bent to form a plate shape, and wires 160 are attached at appropriate intervals to form a planar wire capacitor 156.

This planar wire capacitor 15
6, a part of the wire 160 is cut to form two planar wire capacitors 156a and 156b (see FIG. 10). In this case, the wire capacitor 156
The a and 156b are connected by a pipe 158.

One Planar Wire Capacitor 1
The pipe 158 of 56b is bent to form a three-dimensional shape (see FIG. 9).

As described above, wire capacitors having different heights can be manufactured step by step from one wire capacitor.

In the wire capacitor of this embodiment, the width and height are changed in two steps. However, a plurality of wire capacitors having different heights are used in accordance with the shapes of the upper duct 134 and the lower duct 136. It may be manufactured.

Next, the refrigerator 20 according to the third embodiment of the present invention
0 will be described.

Reference numeral 214 is a main body 212 of the refrigerator 200.
It is a machine room on the right side of the upper part of. This machine room 1
4, a fan 222 is provided in the rear part of the left side surface, and an air exhaust port 228 is provided in the front part of the left side surface. A compressor 224 is provided inside the machine room 214.

Reference numeral 230 is a duct attached to the upper left side of the main body 212, that is, the left side of the machine room 214. The front part of this duct 230 has a horizontal partition plate 232.
Are divided into upper and lower parts by an upper duct 234 and a lower duct 236. A rear surface 233 is provided upright at the rear end of the partition plate 232. This allows
The space in which the fan 222 is provided and the upper duct 234 are separated from each other. An opening 238 opens at the front of the upper duct 234, and an opening 242 opens at the front of the lower duct 236.

Reference numeral 235 is a guide plate that partitions the rear portion of the lower duct 236 around the fan 222 in the front-rear direction.

Reference numeral 256 is a wire condenser for the condenser, which is provided inside the lower duct 236. This wire capacitor 256 is connected to the lower duct 236.
Is mounted in the horizontal direction, and the rear end thereof is bent vertically and is arranged in the rear space partitioned by the guide plate 235.

Reference numeral 262 is a wire condenser for a flat oil condenser provided inside the upper duct 234.

A structure for cooling the compressor 224 in the refrigerator 200 having the above structure will be described.

When the fan 222 is rotated, the opening 24
The air sucked from No. 2 passes through the lower duct 236. In this case, since the fan 222 is divided into two by the guide plate 235, the air flow on the left side enters the machine room 214 from the front part of the fan 222 through the space in front of the guide plate 235. On the other hand, the flow of air on the right side flows into the space on the rear side of the guide plate 235 through the gap formed between the guide plate 235 and the left side surface of the lower duct 236, and the fan 22
2 is sucked from the rear side (see FIG. 13). As a result, the air flows not only to the right side where the machine room 214 is provided, but also to the left side. Therefore, the wire capacitor 256 can be cooled uniformly.

The air sucked into the machine chamber 214 cools the compressor 224 and is then discharged from the air exhaust port 228. The exhausted air cools the wire condenser 262 inside the upper duct 234, and then the opening 238.
Is exhausted from (see FIG. 14).

Even in the refrigerator 200, the machine room 21
4 only by providing the duct 230 on the left side of the compressor 22
4. The wire capacitors 256 and 262 can be cooled, and the structure thereof is simple.

Although the machine room 214 is provided on the right side of the main body 212 in the above embodiment, it may be provided on the left side.

[0074]

According to the refrigerator of claim 1, the compressor can be cooled by providing the machine room and the upper and lower ducts in the upper part of the refrigerator body, and the machine room and the duct The structure is simple.

According to the refrigerator of the second aspect, by providing the condenser inside the lower duct, the condenser can be cooled by the air passing through the lower duct.

According to the refrigerator of the third aspect, by providing the oil condenser inside the upper duct, the oil condenser can be cooled by the air passing through the upper duct.

In the refrigerator according to the fourth aspect of the present invention, since the flat wire condenser for the condenser is provided inside the lower duct so as to be inclined with respect to the horizontal plane, the amount of air hitting the wire condenser increases and is discharged. The amount of heat increases and its cooling effect increases. Further, since the wire capacitor is provided in the upper part of the front, the air that has entered through the opening passes through the wire capacitor from the lower part to the upper part. Therefore,
There is little effect on the upper part of the main body by the heat of the air warmed by the wire condenser.

According to the fifth aspect of the present invention, since the wire condenser for the oil condenser is provided in the upper duct in a tilted manner, the amount of air hit increases, the amount of heat radiation increases, and the cooling effect increases. Further, since the wire condenser is provided in the front lower direction, the air exhausted from the air exhaust port passes through the wire condenser from the lower side to the upper side and is cooled. Therefore, the lower duct is less affected by the heat of the air warmed by the wire condenser.

According to the sixth aspect of the present invention, the pressure loss due to the air suction port can be reduced and the air flow can be made smooth.

According to the wire capacitor of the refrigerator of claim 7, it can be fitted into a lower duct having a width narrower in the rear part than in the front part and higher in height in the rear part than the front part. Therefore, the air passing through the lower duct uniformly cools the wire capacitor.

In the refrigerator of the eighth aspect, since the wire capacitor can be manufactured from one plane-shaped wire capacitor, the manufacturing process can be facilitated and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of a refrigerator according to a first embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view of an upper portion of the refrigerator in FIG.

FIG. 3 is a cross-sectional view of a lower duct.

FIG. 4 is a cross-sectional view of the upper duct.

FIG. 5 is a vertical sectional view of a duct and a machine room.

FIG. 6 is a partially cutaway perspective view of the upper part of the refrigerator of the second embodiment.

FIG. 7 is a cross-sectional view of the lower duct of the second embodiment.

FIG. 8 is a cross sectional view of the upper duct of the second embodiment.

FIG. 9 is a perspective view of a wire capacitor according to a second embodiment.

10 is a perspective view of the wire capacitor of FIG. 9 before assembly.

FIG. 11 is a partially cutaway perspective view of the refrigerator according to the third embodiment.

FIG. 12 is a partially cutaway perspective view showing the relationship between the lower duct and the wire capacitor in FIG.

FIG. 13 is a cross sectional view of the lower duct of the third embodiment.

FIG. 14 is a cross-sectional view of the upper duct of the third embodiment.

FIG. 15 is a vertical sectional view of a duct according to a third embodiment.

FIG. 16 is a vertical sectional view of a conventional first type refrigerator.

FIG. 17 is a vertical cross-sectional view of a conventional second type refrigerator.

[Explanation of symbols]

 10 Refrigerator 12 Main Body 14 Machine Room 22 Fan 24 Compressor 26 Air Suction Port 28 Air Exhaust Port 30 Duct 34 Upper Duct 36 Lower Duct 56 Wire Capacitor 62 Wire Capacitor 62

Claims (8)

[Claims] 1. A machine room provided with a compressor and a fan, and a duct for forcibly sucking and exhausting cooling air into the machine room by the fan are arranged at an upper part of a main body of a refrigerator, and an opening of the duct. A part is provided on the front surface of the main body, the duct is divided into upper and lower two stages, the lower duct is for air intake, the upper duct is for air exhaust, and between the lower duct and the machine room A refrigerator characterized in that an air inlet is provided and an air outlet is provided between the upper duct and the machine room. 2. A condenser provided inside the lower duct apart from the bottom of the lower duct.
Refrigerator described. 3. The refrigerator according to claim 2, wherein an auxiliary heat exchanger for radiating a compressor is provided inside the upper duct. 4. The refrigerator according to claim 2, wherein a flat-shaped wire condenser for a condenser is provided inside the lower duct, and is inclined forward and upward with respect to a horizontal plane. 5. The refrigerator according to claim 3, wherein a planar wire capacitor for the auxiliary heat exchanger for radiating a compressor is provided inside the upper duct, and is inclined forward and downward with respect to a horizontal plane. 6. The refrigerator according to claim 1, wherein the width of the lower duct is narrower in the rear part than in the front part, and the height of the lower duct is higher in the rear part than in the front part. 7. A wire condenser for a condenser is provided inside the lower duct, and the width of the wire condenser is formed such that the rear portion is smaller than the front portion and the height is formed such that the rear portion is higher than the front portion. The refrigerator according to claim 6, wherein the refrigerator is used. 8. The wire capacitor comprises: cutting a part of a wire of one plane-shaped wire capacitor to form a plurality of plane-shaped wire capacitors connected by pipes of the wire capacitor; The wire of each wire capacitor is bent to form a three-dimensional shape so that the width of each plane-shaped wire capacitor is gradually reduced and the height thereof is gradually increased. Item 7. A refrigerator according to item 7.