JPH04335980A - Refrigerator - Google Patents

Abstract

PURPOSE:To efficiently cool a condenser and to suppress noise to a low level. CONSTITUTION:In a refrigerator in which a condenser 21 is arranged along the side of a machine room 3 from an inlet 19 side in a guide duct 15 having the inlet 19 connected to communicate with the room 3 and receiving cooling air, a cooling air guide 23 for so guiding the cooling air from a starting end side of the condenser toward a rear end side as to sequentially repeatedly pass the cooling air from an upper surface side of the condenser 21 to a lower surface side and from the lower surface side to the upper surface side, is provided in the duct 15.

Description

[Detailed description of the invention]

[Object of the invention]

0002

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator that can efficiently cool a condenser.

0003

[Prior Art] In recent years, as refrigerators have become larger, condensers have been placed in air guide channels through which cooling air is forcibly flowed by fans, and have a structure in which forced cooling is performed. An example is shown. In FIG. 6, 101 is the machine room 1
03, 105 is an air guide path connected to the machine room 103, and 107 is a condenser placed in the air guide path 105. The cooling air taken in from 107 removes heat from the condenser 105 and is discharged outside through the machine room 103.

0004

[Problems to be Solved by the Invention] As mentioned above, the air guide path 1
As the cooling air flows inside 05 as shown by the arrow, the condenser 107
However, due to the space within the air guide path 105, the condenser 107 is laid out in a horizontal position along the flow of cooling air.

[0005] Therefore, the cooling air does not flow across the condenser 107, which has good cooling efficiency, but flows along the upper and lower sides of the condenser 107, especially in the downstream area. This is not desirable in terms of cooling efficiency, as the cooling air is warmed and the cooling temperature is high, making it impossible to obtain sufficient cooling.

For this purpose, for example, a layout can be considered in which a part of the condenser 107 is placed in an oblique position so that the cooling air crosses it, as shown by the chain line. The area expands and the dead space S increases. As a result, a new problem arises that affects the storage space of the refrigerator body.

[0007] Accordingly, it is an object of the present invention to provide a refrigerator that can obtain sufficient cooling efficiency without significantly increasing the cross-sectional area of the air guide passage.

[Configuration of the invention]

[0009]

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides an air guide path that connects and communicates with a machine room and that is provided with an intake port through which cooling air is taken in by a fan. In a refrigerator in which a condenser is arranged from the inlet side to the machine room side, the condenser is installed in the air guide path so that the cooling air repeatedly passes through the condenser from the top side to the bottom side and from the bottom side to the top side. A cooling air guide section is provided to guide the cooling air from the starting end to the rear end.

0010

[Function] According to this refrigerator, the cooling air taken in from the intake port by the fan flows through the air guide path, passes through the machine room, and is discharged outside after finishing its work.

[0011] In this case, the cooling air flowing in the air guide passage crosses the condenser in sequence from the top side to the bottom side and from the bottom side to the top side due to the cooling air guide section. It will remove heat efficiently.

0012

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings of FIGS. 1 to 4.

In FIG. 2, numeral 1, indicated by a chain line, indicates a refrigerator body having a freezer compartment, a refrigerator compartment, etc., and the lower part of the refrigerator body is a machine compartment 3.

In the machine room 3, from the upstream side, an axial fan 5,
An evaporating dish 9 is arranged in the order of the compressor 7 and above the compressor 7. A discharge port 11 is provided at the rear portion of the downstream side of the machine room 3, while a duct 17 forming an air guide path 15 is connected and communicated with the front end open portion 13 on the upstream side.

The air guide path 15 has an intake port 19 on the front side, and a condenser 21 is disposed inside thereof in a substantially horizontal position.

As shown in FIG. 1, the air guide path 15 has a starting end, which is the intake port 19 side, so that the cooling air passes through the condenser 21 repeatedly from the upper side to the lower side and from the lower side to the upper side. A cooling air guide section 23 is provided to guide the cooling air toward the rear end side, which is the machine room 3 side.

The cooling air guide section 23 is configured such that the ceiling and bottom surfaces of the duct 17 alternately project toward the condenser 21 at predetermined intervals, and the projecting portions extend to the upper and lower sides of the air guide path 15. The sides are alternately closed to ensure a meandering flow of cooling air up and down. Further, the projecting portion functions as a reinforcing rib to ensure the strength of the duct 17.

As shown in FIG. 3, the cooling air guide section 23 is shaped like a partition plate that is vertically disposed from the ceiling and bottom of the duct 17 toward the condenser 21 at a predetermined interval. The upper and lower sides of the passage 15 may be alternately closed so that the flow of cooling air meandering up and down via the condenser 21.

According to the refrigerator configured as described above, the cooling air taken in from the intake port 19 by the axial fan 5 flows in a meandering manner up and down in the air guide path 15, and then passes through the machine room 3. After finishing the work, it is discharged outside from the discharge port 11. In this case, as shown in FIG. 5, it is also possible to connect a discharge duct 25 to the machine room 3 and adopt a layout in which the cooling air that has finished its work is discharged to the front side of the refrigerator main body 1.

Note that in this embodiment, the duct 25
It is preferable to provide inwardly extending portions alternately on the ceiling surface and bottom surface of the air conditioner so that the flow of cooling air is meandering. Thereby, the projecting portion can function as a reinforcing rib for the duct 25, and the noise generated from the machine room 3 can be meandered and attenuated.

On the other hand, the cooling air flowing in the air guide path 3 is made to flow sequentially across the condenser 21 from the upper surface side to the lower surface side and from the lower surface side to the upper surface side by the cooling air guide section 23.
When the cooling air crosses the condenser 21, it takes away latent heat from the condenser 21. Therefore, as shown in Figure 4,
The same conditions as in the state where the inclination angle θ of the condenser 21 was inclined from zero to about 10 degrees were ensured, and the result was that the amount of radiation was improved by about 20%. Moreover, there is no need to greatly expand the cross-sectional area of the air guide path 15.

In addition, the noise generated from the machine room 3 passes through the air guide path 15 and escapes to the front, but at this time, the noise is meandered by the cooling air guide section 23, and as a result, the air guide path 15 becomes longer and is attenuated. This is expected to be effective and has the advantage of keeping noise to a minimum.

[0023]

Effects of the Invention As described above, according to the refrigerator of the present invention, the flow of cooling air across the condenser can be ensured without expanding the cross-sectional area of the air guide path, resulting in efficient cooling. will be obtained.

Further, the noise generated in the machine room can be suppressed to a small level by the cooling air guide section, which is very favorable in terms of noise.

[Brief explanation of drawings]

FIG. 1 is a schematic cutaway side view showing a cooling air guide section according to the present invention.

FIG. 2 is a schematic perspective view showing essential parts of the invention.

FIG. 3 is a schematic cutaway side view similar to FIG. 1, showing another embodiment of the cooling air guide section.

FIG. 4 is a characteristic diagram showing the relationship between the inclination of the condenser and the amount of radiation.

FIG. 5 is a schematic perspective view similar to FIG. 2 with a discharge port provided on the front side.

FIG. 6 is a schematic cutaway side view similar to FIG. 1 showing a conventional example.

[Explanation of symbols]

3 Machine room 5 Fan 15 Air guide path 19 Intake port 21 Condenser 23 Cooling air guide part

Claims (1)

[Claims] [Claim 1] An air guide path that is connected and communicated with the machine room and has an intake port through which cooling air is taken in by a fan.
In a refrigerator in which a condenser is arranged from the intake side to the machine room side, cooling air is condensed in the air guide path so that it passes repeatedly from the top side of the condenser to the bottom side and from the bottom side to the top side. A refrigerator characterized by being provided with a cooling air guide section that guides the cooling air from the starting end to the rear end of the container.