JP3304126B2 - refrigerator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator with low noise and a compressor cooling system.

[0002]

2. Description of the Related Art In recent years, there has been an increasing demand for refrigerators to be "large and quiet". However, it is necessary to mount a large compressor in order to cope with the increase in size, and it is naturally difficult to reduce noise. Therefore, as shown in, for example, Japanese Utility Model Publication No. Sho 62-34219, a sound insulation structure in which a shielding plate is provided at the lower part of a decorative cover disposed at the lower front of the refrigerator has been devised. As disclosed in Japanese Patent Application Laid-Open No. 141178, a structure has been devised in which a fan for cooling a compressor is installed to promote exhaust heat as a measure for preventing a rise in temperature due to an increase in the size of the compressor.

Hereinafter, the above-described conventional refrigerator will be described with reference to the drawings. 4 and 5 show a lower machine room of a conventional refrigerator, in which 1 is a refrigerator main body, 2 is an evaporating dish, 3 is a bottom plate, 4 is a substantially cylindrical compressor, and 5 is a defroster accumulated in the evaporating dish 2. A hot plate for evaporating water, 6 is a panel front, 6a is a panel front opening for taking in and out the evaporating dish 2, 7 is a front leg, 8 is a makeup cover, 9 is a back cover, 9a is a back cover convection port, and 10 is a refrigerator bottom. , 11
Is the floor. Reference numeral 12 denotes a shielding plate, the upper end of which is fixed to the decorative cover 8 by a rivet 13 or the like, and the lower end of which is suspended so as to contact the floor surface 11. Reference numeral 14 denotes a fan, which is arranged on an extension of the compressor 4 in the longitudinal direction. Reference numeral 15 denotes a fan motor, 16 denotes a partition plate, and 16a denotes a bell mouth. Arrows in the figure indicate the direction of air convection.

[0004] In the refrigerator configured as described above,
The operation will be described below. In FIGS. 4 and 5, the sound generated from the compressor 4, the fan 14, and the fan 15 during the operation of the refrigerator propagates in the front-rear direction of the compressor 4. The sound passing through is reflected and blocked by the decorative cover 8, and the sound passing through the space between the panel front 6 and the floor 11 is blocked and reflected by the shielding plate 12, so that it is difficult for the sound to propagate forward.
The sound reaching the user's ear can be attenuated. In addition, since the sound propagating backward can be blocked by the back cover 9, the noise of the refrigerator can be reduced.

For cooling the compressor 4, air is sucked in from the side of the refrigerator body 1 by a fan 14 installed on a bell mouth 16 a of a partition plate 16 that divides the inside of the machine room into right and left, and is discharged toward the compressor 4. After cooling the compressor 4, the air is discharged outside through the convection port 9 a of the back cover 9.

[0006]

However, in the above configuration, when furniture such as a cupboard or a sink is installed on the side surface of the refrigerator body 1, the inflow of air from the side surface is cut off, and the front side is closed. Panel front 6 and floor 11
Is blocked by the shielding plate 12 and the inflow of fresh air becomes insufficient, and the fan 14 inhales high-temperature air after cooling the compressor 4 and discharges it to the compressor 4. Insufficient cooling of the compressor 4 as described above causes not only deterioration of performance and increase in power consumption due to a decrease in efficiency, but also deterioration of refrigerating machine oil in the compressor 4 and a problem of impairing long-term reliability. Had a point.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to reduce the noise of a refrigerator without impairing the cooling effect of a compressor by a fan.

In order to achieve the above object, a refrigerator according to the present invention comprises an evaporating dish and a bottom plate installed in a machine room located at a lower portion of a refrigerator body, and a substantially cylindrical compression plate mounted on the bottom plate in a left-right direction. And a fan arranged to ventilate in the longitudinal direction of the compressor, and a sound insulation arranged between the compressor and the evaporating dish on the air discharge side of the fan and between the bottom of the refrigerator body and the bottom plate. A plate and an opening communicating with the air intake side of the fan from the lower front of the refrigerator body ;
A back cover that covers the back of the machine room;
A convection port formed on the air discharge side;
Of the convection port through the opening from the lower front of the storage body
Is discharged only from

[0009]

With the above construction, the fan blocks the high-temperature air after cooling the compressor with the sound insulating plate, and only the convection port of the rear cover is provided.
, The fresh air can be sucked from the front of the refrigerator and discharged to the compressor without sucking again, so that the compressor can be efficiently cooled. Further, since noise generated from the compressor can be isolated, noise can be reduced.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A refrigerator according to one embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1, 2 and 3 show a lower machine room portion of a refrigerator according to an embodiment of the present invention. still,
The same parts as those of the conventional configuration are denoted by the same reference numerals, and detailed description is omitted.

Reference numeral 17 denotes a metal sound insulating plate such as an iron plate, which is locked to the refrigerator main body 1 by a fastener 18, and its entire length extends over substantially the entire width of the refrigerator main body 1, and its lower end reaches the bottom plate 3. . Further, the sound insulating plate 17 has a fan 14
A plurality of slit-shaped openings 17a are provided at opposing portions of the air suction portion, and a sound absorbing member 19 that absorbs sound in a low frequency region is provided at opposing portions of the compressor 4. Reference numeral 20 denotes a decorative cover, the lower end of which is at the same height as the lower end of the panel front 6, and forms a space extending over substantially the entire width of the refrigerator body 1 between the decorative cover 20 and the floor surface 11.

With respect to the refrigerator configured as described above,
The operation will be described. Of the sounds generated by the compressor 4, the fan 14, and the fan motor 15, high-frequency sounds are blocked by the sound insulating plate 17, and low-frequency sounds are sound absorbing members 19.
Therefore, the noise of the refrigerator can be reduced.

Next, regarding the cooling of the compressor 4, even when the side surface of the refrigerator main body 1 is closed by furniture, walls, etc., fresh air is blown from the space under the decorative cover 20 in front of the opening of the sound insulating plate 17. The air can be sucked in by the fan 14 through the portion 17a, and the high-temperature air after cooling the compressor 4 is intercepted by the sound insulating plate 17, so that the high-temperature air is always discharged rearward from the convection port 9 of the rear cover 9, and the fan 14 Since re-inhalation of high-temperature air can be prevented, the compressor 4 can be efficiently cooled.

[0015]

The present invention as described above, according to the present invention is placed between the compressor installed in the machine room of the refrigerator body lower the evaporation dish
Between the bottom of the refrigerator body and the bottom plate on which the compressor is mounted.
A sound insulating plate is provided, and an opening is provided at an opposing portion of the air suction portion of the fan on the sound insulating plate, and a sound absorbing member is installed at an opposing portion of the compressor. High-frequency and low-frequency sounds can be isolated and absorbed, respectively, thereby reducing the noise of the refrigerator.

Further, the high-temperature air after cooling the compressor is not discharged to the front from the sound insulating plate but is discharged to the rear from the convection port of the back cover, so that the fan does not re-inhale the high-temperature air efficiently. The compressor can be cooled quickly, and the efficiency of the compressor can be improved, the power consumption can be reduced, and the long-term reliability of the compressor can be improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a main part of a machine room of a refrigerator according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a machine room of a refrigerator according to one embodiment of the present invention.

FIG. 3 is a cross-sectional view of a machine room of a refrigerator according to an embodiment of the present invention.

FIG. 4 is a longitudinal sectional view of a machine room of a conventional refrigerator.

FIG. 5 is a cross-sectional view of a machine room of a conventional refrigerator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigerator main body 2 Evaporating dish 3 Bottom plate 4 Compressor 14 Fan 17 Sound insulation plate 17a Opening 19 Sound absorbing member

Claims (2)

(57) [Claims] 1. An evaporating dish and a bottom plate installed in a machine room located at a lower part of a refrigerator main body, a substantially cylindrical compressor mounted on the bottom plate in a left-right direction, and a ventilation in a longitudinal direction of the compressor. and placed a fan in order to, a sound insulation plate disposed over between in time for the evaporating dish and the compressor air discharge side of the fan and the refrigerator main body bottom and the bottom plate, the air suction side of the fan An opening communicating from the lower front of the refrigerator body, a back cover covering the back of the machine room,
A convection port formed on the air discharge side of the surface cover.
The air is forward through the opening from the lower front of the refrigerator body.
A refrigerator characterized by being discharged only from the convection port . 2. The refrigerator according to claim 1, wherein a sound absorbing member for absorbing sound in a low frequency range is provided on the compressor side of the sound insulating plate.