JPH08285439A - Refrigerator - Google Patents

Abstract

PURPOSE: To provide a refrigerator capable of reducing noises to be generated on the front side of the refrigerator and enhancing heat radiation performance by providing an opening in both side cabinets on the side faces of the refrigerator in relation to the reduction of noises of a refrigerator and the enhancement of heat radiation performance of each refrigerating devices. CONSTITUTION: A refrigerator is provided with a refrigerator main body 1, a side cabinet A1a, a side cabinet B1b, a machine chamber 2, an outer case bottom plate 3, a compressor 6, a mounting plate 7, a cover 8 for the machine chamber, a side face air inlet port 9 and a side face air outlet port 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to noise reduction and heat dissipation performance improvement of a refrigerator.

[0002]

2. Description of the Related Art In recent years, refrigerators have become larger and the capacity of compressors has increased with the increase in heat absorption. Therefore,
This is a problem because it increases noise and heat dissipation.

Therefore, conventionally, for example, in Japanese Utility Model Publication No. 62-3.
A sound insulation structure has been devised, which is disclosed in Japanese Patent No. 4219, in which a shield plate is provided at the lower front portion of the refrigerator. Further, from the viewpoint of heat dissipation performance, as disclosed in Japanese Utility Model Application Laid-Open No. 62-141178, a structure has been proposed in which a fan is forcibly cooled to accelerate exhaust heat as a measure to prevent a rise in temperature of the compressor. .

However, in the above-mentioned structure, if a shield plate is provided at the bottom of the refrigerator, it is effective for sound, but the performance of cooling the compressor by promoting the re-suction of warm air after heat exchange in the rear of the refrigerator in the machine room is Getting worse.

Further, if the shielding plate is removed and air is sucked in from the front of the refrigerator in a good condition, sound leaks from the air inlet to the front of the refrigerator, resulting in increased noise.

Therefore, for example, Japanese Unexamined Patent Publication No. 6-147728.
As shown in Japanese Unexamined Patent Publication No. JP-A-2004-115, a shield plate having a suction port effective for air suction is provided in the lower front part of the refrigerator, and a suction port for sucking air into the machine room is provided in front of a mounting plate on which a compressor and the like are installed. There is proposed a structure in which a shield plate is provided in the lower front part of the mounting plate.

As a result, the heat radiation performance of the compressor and the like is satisfied, and the leakage of sound to the front of the refrigerator is minimized.

An example of a conventional refrigerator will be described below with reference to FIG.
This will be described with reference to FIGS. 10 and 11.

Reference numeral 101 is a refrigerator main body, and 102 is a machine room defined in the lower rear portion of the refrigerator main body 101. Reference numeral 103 is a bottom plate of the outer box, and 104 is a mounting plate on which the condenser 105, the blower 106, and the compressor 107 are arranged.

Reference numeral 108 denotes a front air intake port provided on the mounting plate 104, 109 denotes a machine chamber cover provided with a rear air intake port 110 and an air exhaust port 111, and the machine chamber 102 has the outer box bottom plate 103 and the mounting plate 103. Mounting plate 104 and machine room cover 108
And a side cabinet A101a of the refrigerator body 101
And the side cabinet B101b.

A partition plate 112 divides the space of the machine room 102 and also serves as an orifice of the fan 113. 11
Numeral 4 is an evaporation dish which is arranged immediately above the compressor 107 and receives defrosting water, and 115 is a shield which is locked to an abutting portion 116 between the placing plate 104 and the outer box bottom plate 103 and hangs down on the floor surface 117. It is a plate.

Reference numeral 118 denotes an opening of the shielding plate 115, 119
Is a reinforcement member 1 on the panel front part 120 at the front lower part of the refrigerator.
It is a shield plate that is locked by 21 and hangs down on the floor 117. 122 is an opening of the shield plate 119.

The arrow A in the figure indicates the flow of air,
Arrow B indicates sound propagation. The operation of the refrigerator configured as described above will be described below.

First, by rotating the fan 113 of the blower 106, the air in the front of the refrigerator is guided from the opening 122 to the space between the outer box bottom plate 103 and the floor 117, and the mounting plate 1 is placed.
Machine room 1 through the front air intake port 108 provided in 04.
It is guided in 02.

On the other hand, the air in the rear part of the refrigerator flows from the rear air intake port 110 provided in the machine room cover 109 into the machine room 1
It is guided in 02.

The air introduced into the machine room 102 is the condenser 1
05, the blower 106, and the compressor 107 in that order, heat exchange is performed, and the air is discharged from the air discharge port 111. As a result, the air flow in one direction causes the condenser 105,
The heat dissipation of the compressor 107 is improved to prevent the performance deterioration of the refrigerator.

Next, the propagation of the sound generated from the compressor 107 will be described. In the machine room 102, the generated sound is an outer box bottom plate 103, a mounting plate 104, a machine room cover 109, a side cabinet A101a, a side cabinet B10.
Repeatedly reflected at 1b, passing through the front air inlet 108,
While partially shielded by the shielding plate 119 at the lower front of the refrigerator,
The light is radiated from the opening 122 toward the front of the refrigerator.

The sound transmitted through the mounting plate 8 is shielded by the shielding plate 11.
While passing through the lower part of the front suction port 108 while being partially shielded by 5, the sound is radiated from the opening 122 toward the front of the refrigerator.

Further, sound is radiated rearward from the rear air intake 110 and the air exhaust 111 provided in the machine room cover 109.

[0020]

However, in the above-mentioned structure, since the front air intake port 108 and the opening 122 are provided even if the shield plates 115 and 119 are provided, the space from which the water flows out can be obtained. There was a problem that sound propagated and the effect of the shielding plate could hardly be expected.

Further, since the machine room 102 has a rectangular shape, a standing wave is generated in the machine room space, and the noise in the front of the refrigerator tends to increase more and more.

Further, from the viewpoint of heat dissipation, since the shield plate 119 is provided, the air intake area from the front of the refrigerator is reduced, the amount of airflow for heat dissipation cannot be increased, and heat dissipation efficiency is deteriorated.

In view of the above problems, the present invention provides a refrigerator that improves heat exchange efficiency of a condenser and a compressor and reduces sound emission toward the front of the refrigerator regardless of the presence or absence of a shield plate. Has an aim.

[0024]

In order to achieve the above object, the refrigerator of the present invention comprises an outer box bottom plate at the bottom of the refrigerator body,
An opening is provided in both side cabinets of the machine room in the machine room partitioned by the mounting plate on which the compressor is mounted, the machine room cover, and the facing side cabinets.

Further, the side cabinet has a plurality of openings. Further, a guider facing the front of the refrigerator is provided in one opening, and a guider facing the upper side of the refrigerator is provided in the other opening.

Further, the side cabinet forming the machine room is provided with an air passage, and the air passage whose opening faces the front of the refrigerator has a cross-section that gradually expands toward the front of the refrigerator so that the opening faces upward of the refrigerator. The passage has a cross-section that gradually expands toward the top of the refrigerator.

[0027]

According to the present invention, the sound emitted from the compressor is directly emitted to the side of the refrigerator without being reflected by the side cabinet, and the mounting plate and
By radiating the sound reflected from the bottom of the outer box and the machine room cover to the side, the sound radiated to the front of the refrigerator can be reduced. Further, it is possible to take in air from one side of the refrigerator and discharge it from the other side, and the front opening can be sealed to drastically reduce noise in the front of the refrigerator.

Further, if the opening is formed by a large hole, the rigidity of the side cabinet is lowered, and there is a possibility that vibration noise is generated. Therefore, by constructing the holes of a plurality of compartments, the rigidity of the machine room cover can be improved, vibration noise can be prevented, and entry of rats and the like can be prevented.

By attaching a guider facing the front of the refrigerator and a guider facing the upper side of the refrigerator to the opening of the side cabinet, the flow of air taken in from the front side of the refrigerator and discharged to the upper side of the refrigerator is forced. It is possible to prevent the re-inhalation of the discharged warm air.

Further, when the air is sucked into the machine room, it is gradually narrowed from a large cross section, so that the pressure loss at the time of sucking is small and a high air flow can be secured under an appropriate static pressure condition. In addition, since the hot air after heat exchange is discharged with the air passage having the gradually increasing cross section, there is almost no loss due to the discharge resistance, and the heat dissipation performance of the refrigeration equipment can be improved.

[0031]

【Example】

(Embodiment 1) A refrigerator according to an embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

In the figure, 1 is a refrigerator main body, 2 is a machine room, an outer box bottom plate 3, a condenser 4, a blower 5, and a compressor 6.
The mounting plate 7 on which is installed, the machine room cover 8, the side cabinet A1a, and the side cabinet B1b.

The side cabinet A1a is provided with a side air inlet 9 for taking in air, and the side cabinet B1b is provided with a side air outlet 10 which is an outlet for warm air after heat exchange.

A partition plate 11 also serves as an orifice of the fan 12 of the blower 5. Reference numeral 13 denotes an evaporation dish arranged directly above the compressor 6 for receiving defrost water, and 14 denotes a floor surface.

The arrow A in the figure indicates the flow of air,
The arrow B indicates the propagation of sound. The operation of the refrigerator configured as described above will be described.

First, the air flow is the fan 1 of the blower 5.
The rotation of 2 causes the air on the side of the refrigerator to move to the side air inlet 9
Is sucked into the machine room 2 through.

The air taken in is blower 5, condenser 4,
While passing through the compressor 6 in this order, it is warmed by heat exchange between the condenser 4 and the compressor 6, and is discharged to the outside as warm air from the side discharge port 10.

As for the sound propagation, the sound radiated from the surface of the compressor 6 on the side surface of the refrigerator is directly radiated to the outside through the side air inlet 9 and the side air outlet 10. Also,
The sound emitted from the other surface is reflected by the surfaces of the machine rooms 2 facing each other, and then emitted from the side air inlet 9 or the side air outlet 10 to the outside.

As a result, even if there is no special shielding plate at the front bottom of the machine section, the forward noise can be sufficiently reduced, a sufficient amount of air for heat exchange can be obtained, and the heat dissipation performance of the condenser 4 and the compressor 5 can be improved. Can be improved. Further, since it is not necessary to provide an opening for sucking air in the front of the machine room, almost no noise is radiated in the front of the refrigerator.

(Embodiment 2) A second embodiment of the refrigerator according to the present invention will be described below with reference to FIG.

Reference numeral 15 is a slit-shaped side air inlet provided with a plurality of side air inlets 9, and 16 is a slit-shaped side air outlet provided with a plurality of side air outlets 10.

With these configurations, the rigidity of the side cabinet A1a and the side cabinet B1b is improved, and the opening of the side surface of the refrigerator opens, so that the vibration transmission sound transmitted from the mounting plate 7 due to the deterioration of the rigidity can be prevented. it can.
Furthermore, it is possible to prevent entry of mice and the like, and it is possible to secure sufficient strength even in a heavy refrigerator.

(Embodiment 3) A third embodiment of the refrigerator according to the present invention will be described below with reference to FIGS.

Reference numeral 17 denotes a suction guider provided at the side air intake port 9 and directed to the front of the refrigerator, and 18 denotes a discharge guider provided at the side air intake port 10 and directed to the upper side of the refrigerator.

With this structure, the suction guider 17 promotes the intake of fresh air from the front of the refrigerator, and improves the heat dissipation performance of the refrigeration equipment. Further, because of the discharge guider, the warm air after heat exchange is discharged above the refrigerator, so that re-suction of the warm air can be prevented.

Also, with this structure, even if the refrigerator is installed on the side surface of the refrigerator when installed, a space for sucking in and discharging from the front of the refrigerator is always ensured, and in practice,
It's very effective.

(Fourth Embodiment) A fourth embodiment of the refrigerator according to the present invention will be described below with reference to FIGS. 7 and 8.

Reference numeral 19 denotes an intake air passage communicating with the side air intake port 9 provided in the side cabinet A1a, and its cross section is gradually enlarged in the front direction of the refrigerator. 20
Is an exhaust air passage communicating with the side air exhaust port 10 provided in the side cabinet B1b, and its cross section gradually expands toward the upper side of the refrigerator.

Thus, the sound is an effect of the tail pipe due to the influence of the lengths of the intake air passage 19 and the exhaust air passage 20, the sound emitted from the opening is attenuated, and the sound propagating in the front of the refrigerator is reduced. can do.

In the actual installation condition, the suction port,
The outlet can be secured, which is practically effective. Further, since the air passage is configured, an appropriate static pressure is applied to the blower 5, the air volume is increased, and the heat radiation performance of each refrigeration equipment is improved. Further, the gradual change in the cross section of the air passage can prevent pressure loss at the time of blowing air and can perform efficient blowing.

[0051]

As described above, according to the present invention, the bottom of the refrigerator body, the bottom plate of the outer box, the mounting plate on which the compressor is mounted, the machine room cover, and the machine room partitioned by the facing side cabinets. In the above, since the openings are provided in both side cabinets of the machine room, it is possible to prevent sound emission to the front of the refrigerator.

Further, by forming a plurality of openings in the side cabinet, the rigidity of the side cabinet can be increased, the vibration transmission sound can be reduced, and the mouse can be prevented from entering.

By providing a guider facing the front of the refrigerator in one opening and a guider facing the upper side of the refrigerator in the other opening, the heat dissipation performance of each refrigeration equipment is improved and any installation is performed. The ventilation passage can be secured even under the conditions, and the performance of the refrigerator can be improved.

Further, the side cabinet constituting the machine room is provided with an air passage, and the air passage whose opening faces the front of the refrigerator has a cross-section that gradually expands toward the front of the refrigerator, and the air passage whose opening faces the upper side of the refrigerator. By constructing the passage so that the cross-section thereof gradually increases toward the upper side of the refrigerator, it is possible to reduce refrigerator noise and improve heat dissipation performance.

As a result, noise emitted to the front of the refrigerator can be efficiently reduced and the heat radiation performance can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part of a machine room of a refrigerator showing a first embodiment of the present invention.

FIG. 2 is a vertical sectional view of a machine room of the refrigerator.

FIG. 3 is a plan view of a machine room of the refrigerator.

FIG. 4 is a perspective view of an essential part of a machine room of a refrigerator showing a second embodiment of the present invention.

FIG. 5 is a perspective view of an essential part of a machine room of a refrigerator showing a third embodiment of the present invention.

FIG. 6 is a plan view of a machine room of the refrigerator.

FIG. 7 is a perspective view of an essential part of a machine room of a refrigerator showing a fourth embodiment of the present invention.

FIG. 8 is a plan view of a machine room of the refrigerator.

FIG. 9 is a vertical cross-sectional view of a conventional machine room of a refrigerator.

FIG. 10 is a plan view of a machine room of the refrigerator.

FIG. 11 is a perspective view of a main part of a machine room of the refrigerator.

[Explanation of symbols]

 1 Refrigerator main body 1a Side cabinet A 1b Side cabinet B 2 Machine room 3 Outer box bottom plate 4 Condenser 5 Blower 6 Compressor 7 Mounting plate 8 Machine room cover 9 Side air inlet 10 Side air outlet 15 Slit side air intake Port 16 Slit-shaped side air outlet 17 Inhalation guider 18 Ejection guider 19 Intake air passage 20 Ejection air passage

Claims (4)

[Claims] 1. A side cabinet of a machine room in which a bottom plate of an outer box, a mounting plate on which a compressor is mounted, a machine room cover, and a facing side cabinet are defined in a lower part of a refrigerator main body. A refrigerator characterized in that an opening is provided in the refrigerator. 2. The refrigerator according to claim 1, wherein the side cabinet has a plurality of openings. 3. The refrigerator according to claim 1, wherein one of the openings is provided with a guider facing the front of the refrigerator, and the other opening is provided with a guider facing the upper side of the refrigerator. 4. A wind path having a side cabinet forming a machine room, the opening of which faces the front of the refrigerator, the cross section of which gradually expands toward the front of the refrigerator, and the opening of which faces the upper side of the refrigerator. The refrigerator according to claim 1, wherein the passage has a cross-section that gradually expands toward the upper side of the refrigerator.