JP2002147927A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator wherein heat from a compressor is guided to a center upper surface of a vaporization pan to cause a convection flow of air in a machine chamber, and a necessary vaporization amount is ensured by effectually making use of the heat from the compressor even without a condensation pipe. SOLUTION: A refrigerator is adapted such that a vaporization pan 11 is provided in a machine chamber 10 through a drain pipe 12 derived from a bottom plate 2b of a heat insulation box composed of a heat insulating material filled between an outer box 2 and an inner box, and a compressor 13 is disposed at a lower portion of the vaporization pan 11, heat of which compressor 13 is in turn utilized to vaporize defrosted water. In the refrigerator, a cylinder section 11a is formed at the center of the bottom of the vaporization pan 11, which section is protruded upward in the shape of a cylinder and has an opening in an upper end thereof, and further an air guide member 14 having a V shaped cross section is disposed at an upper end edge opposing to the foregoing opening 11b for dividing the heat from the compressor 13 to the left and the right between it and the foregoing cylinder section 11a.

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 structure of an evaporating dish for efficiently guiding heat from a compressor to an evaporating dish disposed in a machine room.

[0002]

2. Description of the Related Art Conventional refrigerators include, for example, those shown in FIGS. In the figure, 1 is a heat insulating box,
The heat-insulating box 1 includes an outer box 2, an inner box 3, and a foam heat-insulating material 4 filled between the two. Behind the freezing room 5 is an evaporator 6 and a blower 7 for circulating cool air generated by the evaporator 6 to each room such as the freezing room 5. A dew tray 8 is provided at a lower portion of the evaporator 6, and a defrost heater 9 that is turned on during a defrosting operation is provided substantially at the center of the dew tray 8. The dew tray 8 is for receiving defrost water flowing down from the evaporator 6 when the refrigerator is operated for defrosting operation. The defrost water collected in the dew tray 8 passes through a drain pipe 12. It is guided to a machine room 10 formed in the lower rear part of the heat insulating box 1 and enters an evaporating dish 11 attached to an upper part of a compressor 13 disposed in the machine room 10, where the compressor 13 and the like are provided. The heat is used to evaporate.

The compressor 13 is disposed in the machine room 10, the evaporating dish 11 is mounted on the upper part of the compressor 13, and a condensing pipe 15 is attached to the bottom of the evaporating dish 11. The defrost water collected in the evaporating dish 11 is supplied to the heat of the machine room 10 by the compressor 13 and the evaporating dish 11
Is mainly evaporated by the heat of the condensing pipe 15 provided so as to be immersed in defrost water at the bottom of the pipe.

However, only the heat generated by the compressor 13 limits the ability of the evaporating dish 11 to evaporate the defrosted water. Therefore, the condensing pipe 15 is provided at the bottom of the evaporating dish 11 to increase the amount of evaporation. Although it is attached and uses the heat, it is costly, and the evaporating dish 11 and the bottom plate 2
There is a fear that air will be trapped between b and reduce the evaporative power.
Since the condensing pipe 15 is immersed in the defrost water, there is a problem that the condensing pipe 15 may be corroded if there is a pinhole in the waterproofing process.

[0005]

In the present invention, in view of the above-mentioned problems, heat from the compressor is guided to the upper surface of the center of the evaporating dish to cause convection of air in the machine room. It is an object of the present invention to provide a refrigerator that can efficiently use the heat of the above and can secure a necessary amount of evaporation even if the condensation pipe is abolished.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention refrigerates a heat-insulating box comprising an outer box, an inner box, and a heat-insulating material filled between the two. Chamber, a freezer compartment and a plurality of storage compartments, respectively, an evaporator is provided behind the freezer compartment, a dew tray is provided below the evaporator, and an evaporating tray is provided in the machine room through a drain pipe from the dew tray, In a refrigerator in which a compressor is arranged at a lower portion of the evaporating dish and the defrosted water is evaporated by using heat of the compressor, the refrigerator protrudes upward at a center of a bottom of the evaporating dish, and has an upper end. Forming a cylindrical portion having an opening, at the upper end edge of the opening facing,
A wind guide member that protrudes above the opening and divides the heat of the compressor to the left and right between the cylinder and the tubular portion is provided.

Further, the air guide member is formed in a V-shaped cross section.

[0008] And the heat guide piece which protruded downward was provided in the bottom part of the said air guide member.

In a refrigerator in which the drain pipe faces the center of the evaporating dish, the upper surface of the baffle member receives the defrost water from the drain pipe once, and the defrost water drain passage The configuration is as follows.

Further, a heating piece projecting upward is provided at the center of the upper surface of the wind guide member.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below as examples based on the attached drawings. FIG. 1 is a side sectional view showing a schematic configuration of a refrigerator according to the present invention (and a conventional example), and FIG. 2 is a schematic rear view (A) of a machine room showing a first embodiment according to the present invention; FIG. 3 is a perspective view of a main part of a wind guide member (B), FIG. 3 is a schematic rear view of a machine room showing a second embodiment according to the present invention, and FIG. FIGS. 7A to 7F are cross-sectional views of main parts showing the example of FIG. Note that the same reference numerals are used for the same parts as in the related art.

In FIG. 1, FIG. 1 shows the inside of a refrigerator from the side, 1 is an insulating box, and 1 is an outer box.
, An inner box 3, and a foamed heat insulating material 4 filled between the two. Behind the freezing room 5 is an evaporator 6 and a blower 7 for circulating cool air generated by the evaporator 6 to each room such as the freezing room 5. A dew tray 8 is provided at a lower portion of the evaporator 6, and a defrost heater 9 that is turned on during a defrosting operation is provided substantially at the center of the dew tray 8. The dew tray 8 is for receiving defrost water flowing down from the evaporator 6 side when the refrigerator is operated for defrosting operation. Machine room 1 formed at the lower rear of the heat insulating box 1
0, and the compressor 13 disposed in the machine room 10
Enters the evaporating dish 11 attached to the upper part of the compressor 1
It is made to evaporate using the heat of 3 etc.

As shown in the embodiment of FIGS. 2A and 2B, the compressor 13 is disposed in the machine room 10, and the evaporating dish 11 is placed above the compressor 13. The outer box 2 is attached to a lower edge of a back plate 2a by a support plate 16. The drain pipe 12 extends from the bottom plate 2b of the heat-insulating box 1 and faces the evaporating dish 11 provided in the lower machine room 10.

At the center of the bottom of the evaporating dish 11, a cylindrical part 1 having a cylindrical shape protruding upward and having an opening 11b at the upper end.
1a, and at the upper end edge of the opening 11b facing
By arranging a baffle member 14 having a V-shaped cross section for projecting upward from the opening 11b and dividing the heat of the compressor 13 to the left and right between the cylinder 11a and the cylinder 11a, the compressor 13 Is conducted to the upper surface of the center of the evaporating dish 11 to cause convection of air in the machine room 10.

On the other hand, a heat guide piece 14a projecting downward is provided at the bottom of the air guide member 14, so that the compressor 1 can be viewed from below.
3 serves as a guide for splitting the heat from the left and right into the right and left, and transfers the heat from the compressor 13 to the air guide member 14.
It is easy to guide to.

In the refrigerator in which the drain pipe 12 faces the center of the evaporating dish 11, the upper surface of the air guide member 14 receives the defrosted water from the drain pipe 12 once, and The defrosted water is configured as a drainage channel, and the defrosted water is once warmed on the upper surface of the air guide member 14 and then dropped onto the evaporating dish 11 below, so that the heat from the compressor 13 is efficiently used. can do.

Further, at the center of the upper surface of the wind guide member 14,
By providing the heating piece 14b protruding upward, the defrost water once received in the baffle member 14 can be heated more efficiently, and the defrost water going to the evaporating dish 11 can be reduced. ing.

Further, as shown in FIGS. 4 (A) to 4 (F), the shape of the air guide member 14 may be various shapes including the above example. In the above embodiment, a blower is not provided in the machine room, but the present invention can also be applied to a refrigerator provided with a blower. (Not shown)

In the above configuration, the defrost water collected in the evaporating dish 11 is heated by the compressor 13 so that
And the heat of the compressor 13 is led to the upper surface of the center of the evaporating dish 11 through a cylindrical section 11a provided in the center of the evaporating dish 11, and a cross section is formed at the upper edge of the cylindrical section 11a. By providing the V-shaped or the like wind guide member 14, convection of air is caused in the machine room 10, air is trapped between the evaporating dish 11 and the bottom plate 2 b, and the evaporating power is not reduced. By using the heat from the compressor 13 efficiently, a necessary amount of evaporation can be secured. In a refrigerator in which the drain pipe 12 faces the center of the evaporating dish 11, the defrost water can be once heated on the upper surface of the baffle member 14. Frost water can be reduced.

[0020]

As described above, according to the present invention, in order to guide heat from the compressor to the upper surface of the center of the evaporating dish, a cylinder having an opening at the upper end is provided at the center of the evaporating dish. ,
Furthermore, by providing a wind guide member at the upper edge of the opening,
A refrigerator that can generate convection of air in the machine room, efficiently use heat from the compressor, and secure a necessary amount of evaporation even if the condensing pipe is abolished.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a schematic configuration of a refrigerator according to the present invention and a conventional example.

FIG. 2 is a schematic rear view of a machine room showing a first embodiment according to the present invention (A), and a perspective view of essential parts of an evaporating dish and a wind guide member (B).
It is.

FIG. 3 is a schematic rear view of a machine room showing a second embodiment according to the present invention.

FIGS. 4A to 4F are main-part sectional views showing a plurality of examples of the air guide member according to the embodiment of the present invention.

FIG. 5 is a schematic rear view of a machine room showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigerator main body (insulated box) 2 Outer box 2a Back plate 2b Bottom plate 3 Inner box 4 Insulation material 5 Freezer room 6 Evaporator 7 Blower 8 Dew receiving tray 9 Defrost heater 10 Machine room 11 Evaporating dish 11a Tubular part 11b Opening 12 Drain pipe 13 Compressor 14 Wind guide member 14a Heat guide piece 14b Heating piece 15 Condenser pipe 16 Support plate

Claims (5)

[Claims] A refrigerator, a freezer, and a plurality of storage compartments, each of which is provided with an upper compartment and a lower compartment. An evaporator is provided behind the chamber, an exposure pan is provided below the evaporator, an evaporating pan is provided in the machine room through the drain pipe from the dew pan, and a compressor is arranged below the evaporating pan. In a refrigerator formed by evaporating defrost water using the heat of the machine, a cylindrical part having an opening at the upper end is formed at the center of the bottom of the evaporating dish, protruding upward in a cylindrical shape, and having an opening at the upper end. A refrigerator, wherein a wind guide member protruding above the opening and projecting the heat of the compressor to the right and left is disposed between the cylindrical portion and the opposed upper edge. 2. The refrigerator according to claim 1, wherein the air guide member is formed in a V-shaped cross section. 3. A heat conducting piece protruding downward is provided at a bottom portion of the wind guide member.
The refrigerator as described. 4. In a refrigerator in which the drain pipe faces the center of the evaporating dish, the upper surface of the air guide member receives defrost water from the drain pipe once, and the drain path of the defrost water. The refrigerator according to any one of claims 1 to 3, wherein 5. The refrigerator according to claim 4, wherein a heating piece protruding upward is provided at the center of the upper surface of the air guide member.