JPH04371782A - Refrigerator - Google Patents

Abstract

PURPOSE:To provide a low-noise refrigerator, resolving problems, such as the deterioration of efficiency, reliability for a long period of time and the like due to the shortage of cooling of a compressor upon shielding noise emitted from the compressor, and reducing rearward noise without spoiling the evaporating performance of the refrigerator. CONSTITUTION:In a refrigerator, in which a compressor, a fan and an evaporating pan are arranged in the lower part of the same, the upper part and the fore-and-rear parts of cylindrical compressor 24 and the fan 32, which are arranged transversally on a bottom plate 23, are surrounded integrally by a shielding plate 34 formed so as to have the shape of an arch while a given interval is formed between the bottom plate 23 and the bottom surface of the refrigerator.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for reducing noise in a refrigerator and cooling a compressor.

0002

BACKGROUND OF THE INVENTION In recent years, there has been a trend toward higher quality and larger refrigerators. That is, from the viewpoint of high quality, it is desired that refrigerators have low noise. However, in order to cope with the increase in size, it is necessary to increase the size of the compressor, which naturally makes it difficult to reduce noise. Therefore, for example, Utility Model 62-34219
As shown in the Japanese Utility Model Publication No. 62-141178, a sound insulation structure has been devised in which a blocking plate is provided at the bottom of the decorative cover disposed at the front lower part of the refrigerator. As a measure to prevent the temperature from rising as compressors become larger, a structure has been devised in which a compressor cooling fan is installed to promote exhaust heat.

An example of the above-mentioned conventional refrigerator will be described below with reference to the drawings. Figures 3 and 4 show the lower machine room of a conventional refrigerator, where 1 is the refrigerator body, 2 is an evaporation tray, 3 is a bottom plate, 4 is a compressor, and 5 is an evaporation tray that evaporates the accumulated defrosting water. 6 is a panel front, 6a is a panel front opening for putting in and taking out the evaporating dish 2, 7 is a front leg, 8 is a decorative cover, 9 is a back cover, 9
1 is a convection opening provided in the back cover 9, 10 is a bottom surface of the refrigerator, and 11 is a floor surface.

Reference numeral 12 denotes a shielding plate, whose upper end is fixed to the decorative cover 8 with rivets 13 or the like, and whose lower end hangs down so as to come into contact with the floor surface 11. 14 is a fan, 15 is a driving motor thereof, 16 is a partition plate, and 16a is a bell mouth. Further, arrows in the figure indicate the direction of air convection.

[0005] In the refrigerator configured as above,
The operation will be explained below. In FIG. 3, the sounds generated from the compressor 4, fan 14, and motor 15 during refrigerator operation propagate in the front and back direction of the compressor 4, but among the sounds that propagate forward, the sound that passes through the panel front opening 6a is The sound that passes through the space between the panel front 6 and the floor 11 is blocked and reflected by the decorative cover 8, and is blocked and reflected by the shielding plate 12, making it difficult for the sound to propagate forward. It can attenuate the sound that reaches your ears. Moreover, since the rear cover 9 can also block the sound propagating backwards, it is possible to reduce the noise level of the refrigerator.

[0006] Regarding the method of cooling the compressor 4, air is sucked in from the side of the refrigerator body 1 by a fan 14 installed in a bell mouth 16a of a partition plate 16 that divides the machine room into left and right parts, and is discharged in the direction of the compressor 4. The air after cooling the compressor 4 is passed through the convection port 9a of the back cover 9.
is discharged to the outside.

[0007]

[Problems to be Solved by the Invention] However, in the above-described configuration, when furniture such as a cupboard or a sink is installed on the side of the refrigerator body, the inflow of air from the side is blocked, and also the air from the front is blocked. Panel front 6 and floor 11
The gap between the air and the air is blocked by the shielding plate 12, resulting in insufficient inflow of fresh air. In recent years, kitchen systems have become increasingly popular, and there are many opportunities like this.

[0008] Also, the fan 14 causes the bell mouth 16a to
The direction of the air discharged from the compressor 4 is also not effective for cooling the compressor 4 because it is dispersed within the machine room.

[0009] If the compressor 4 is not cooled sufficiently as described above, it not only leads to deterioration of performance due to a decrease in efficiency and an increase in power consumption, but also leads to deterioration of the refrigerating machine oil etc. in the compressor 4. This had the problem of lacking long-term reliability.

[0010] Also, the back cover 9 is provided with exhaust heat from the compressor 4,
And the defrosting water stored in the evaporating dish 2 is transferred to the hot plate 5.
A convection port 9a is provided for discharging steam generated when evaporating with heat, but the noise from the compressor 4, fan 14, and blower 15 passes through the convection port 9a to the rear, causing damage to the rear wall, etc. Another problem was that the noise reflected in the front increased.

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

0012

[Means for Solving the Problems] In order to achieve the above object, the refrigerator of the present invention has a compressor and a fan installed laterally, the upper part and the front and back of these are shielded by shielding plates, and the It has a configuration in which a certain distance is provided between the closing plate and the bottom of the refrigerator.

[0013]

[Operation] With this configuration, fresh air can be taken in from the front of the refrigerator, and the compressor can be efficiently cooled by the duct effect. Furthermore, it is possible to block sound propagation not only in the front direction but also in the rear direction.

[0014]

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

FIGS. 1 and 2 show the lower mechanical compartment of the refrigerator, where 21 is the refrigerator body, 22 is an evaporating dish, 23 is a bottom plate,
24 is a cylindrical compressor installed laterally; 25 is a hot plate for evaporating the defrosting water accumulated in the evaporating dish 22; 26 is a cylindrical compressor installed laterally;
is a panel front, 26a is a panel front opening for putting in and taking out the evaporating dish 22, 27 is a front leg, 28 is a decorative cover, 29 is a back cover, 29a, 29b, and 29c are an inlet and an outlet provided in the back cover, respectively. It is a convection opening,
30 is the bottom surface of the refrigerator, and 31 is the floor surface.

32 is a fan, 33 is its motor,
The fan 32 is installed to provide ventilation in the direction of the cylinder of the compressor 24. Reference numeral 34 denotes a shielding plate made of steel plate bent into an arch shape, and is attached so as to surround all of the fan 31, motor 32, and compressor 24, and the front and rear edges are attached to the bottom plate 23 with rivets 35, etc. is fixed. Moreover, this shielding plate 34 also maintains a certain distance from the bottom surface 30 of the refrigerator.

Regarding the refrigerator configured as above,
Let's explain its operation. The sound generated from the compressor 24, fan 32, and motor 33 is all blocked by the shielding plate 34 in the front, rear, and upper directions, so it propagates not only from the front but also from the convection opening 29c, reflects off the rear wall, etc., and goes forward. There is no sound propagation, and the noise from the refrigerator can be reduced.

Regarding the cooling of the compressor 24, there is no need to block the front panel 26, decorative cover 28, and floor surface 31 with a shielding plate, so if the intake port 29a of the side or rear cover 29 is Even if it is blocked by a wall etc.
Fresh air can be taken in by the fan 32 from the lower part of the front panel front 26 or the panel front opening 26a, and after cooling the compressor 24, it is discharged to the outside from the exhaust port 29b.

Moreover, since the compressor 24 and the fan 32 are located in a so-called duct formed by the arch-shaped shielding plate 34 and the bottom plate 23, the air from the fan 32 is not dispersed and the compressor 24 is Since it is used for cooling the compressor 24, it is very efficient, and it is possible to improve the efficiency and long-term reliability of the compressor 24.

Further, the defrosting water in the evaporating dish 22 is heated by the hot plate 25, evaporates, and is discharged to the outside through the convection port 29c of the rear cover 29, passing between the bottom surface 30 of the refrigerator and the shielding plate 34. However, even in this case, since air can easily flow in from the front, efficient evaporation performance can be obtained, and there are also ripple effects such as miniaturization of the evaporating dish.

[0021]

[Effects of the Invention] As described above, the present invention surrounds the compressor and the fan at the bottom of the refrigerator with shielding plates in front, in front, and above, and further,
Because it is spaced a certain distance from the bottom of the refrigerator, it can block sound not only from the front of the compressor, fan, and motor, but also from the rear.Furthermore, since there is no need to close off the front of the refrigerator, The compressor can be efficiently cooled under any installation conditions, improving compressor efficiency, reducing power consumption, and ensuring long-term reliability.

[0022] Also, since the evaporation performance of the evaporating dish is improved,
The evaporating dish can be made smaller, that is, the machine room of the refrigerator can be made smaller, and the internal volume can be increased, which has great ripple effects.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of essential parts of a refrigerator according to an embodiment of the present invention.

[Fig. 2] A sectional view of essential parts of a refrigerator showing an embodiment of the present invention.

[
Figure 3: Cross-sectional view of main parts of a conventional refrigerator

[Figure 4] Rear view of main parts showing conventional example

[Explanation of symbols]

22 Evaporating dish 23 Bottom plate 24 Compressor 30 Bottom of refrigerator 32 Fan 34　　　　Shielding plate

Claims (1)

[Claims] [Claim 1] An evaporating dish and a bottom plate disposed at the front and rear of the lower part of the refrigerator, a cylindrical compressor disposed laterally on the bottom plate, and a structure configured to ventilate in the direction of the cylinder of the compressor. a fan; a shield that is locked to the bottom plate, has an inner surface at a constant distance from the compressor and the fan, an outer surface from the bottom surface of the refrigerator body, and is configured to surround the compressor and fan above and in front and rear; A refrigerator comprising a closed plate.