WO2019053879A1

WO2019053879A1 - Refrigerator and evaporation tray for refrigerator

Info

Publication number: WO2019053879A1
Application number: PCT/JP2017/033451
Authority: WO
Inventors: 優希金井
Original assignee: 三菱電機株式会社
Priority date: 2017-09-15
Filing date: 2017-09-15
Publication date: 2019-03-21

Abstract

A refrigerator comprising: a main body section having in the interior thereof a cooling chamber and a machine chamber; an evaporator provided in the cooling chamber; a compressor provided in the machine chamber; and an evaporation tray that is arranged above the compressor in the machine chamber, and that collects defrost water produced when the evaporator is defrosted. The evaporation tray has: a water storage section having a shape wherein a bottom surface thereof is indented in a convex shape toward the evaporator, the upper part of the compressor being accommodated in the indented bottom surface; and ribs provided along the outer peripheral edge of the water storage section and protruding from the bottom surface toward the compressor. The water storage section is configured such that step-like step sections dropping down toward the compressor are formed centered around a central section into which the defrost water produced during defrosting of the evaporator initially flows, and adjacent step sections are separated by means of partition walls.

Description

Refrigerator and refrigerator evaporation dish

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a refrigerator equipped with an evaporation dish for storing defrost water generated when the evaporator is defrosted and an evaporation dish of the refrigerator.

Heretofore, a refrigerator is known to have a storage room, a cooling room and a machine room inside a main body. The cooling room and the machine room are provided on the back side of the storage room. The cooling chamber is disposed above the machine chamber, and is provided with an evaporator that constitutes a part of a refrigeration cycle for keeping the storage chamber cool. The machine room is provided with a compressor, a condenser and the like that constitute a part of the refrigeration cycle. The machine room is provided with an evaporation pan, which is disposed above the compressor and stores, in the water storage section, the defrost water generated when the evaporator is defrosted. The defrost water stored in the evaporation pan is evaporated using the operating heat of the compressor.

For example, in the refrigerator disclosed in Patent Document 1, a rib is provided on the bottom surface of the evaporation dish to surround the top of the compressor. This refrigerator is configured to evaporate the defrost water stored in the evaporating dish by retaining the operation heat of the compressor in the area surrounded by the ribs.

Japanese Utility Model Publication No. 62-80184

In the refrigerator disclosed in Patent Document 1, the rib is shaped so as to surround the top surface portion of the compressor, and the evaporation effect is enhanced only in a part of the water storage portion of the evaporation pan. Therefore, with this refrigerator, the operating heat of the compressor can not be sufficiently transmitted to the defrost water that has flowed to the outside of the portion corresponding to the range in which the rib is provided in the water storage section, and the defrost water is evaporated It takes time to cause it to evaporate, or there is a possibility that defrost water may remain in the water storage section.

The present invention has been made to solve the problems as described above, and provides a refrigerator and an evaporating dish for the refrigerator, which can effectively evaporate the defrost water generated when the evaporator is defrosted. The purpose is to

The refrigerator according to the present invention includes a main body having a cooling chamber and a machine chamber inside, an evaporator provided in the cooling chamber, a compressor provided in the machine chamber, and the compressor in the machine chamber. An evaporation dish disposed above and storing defrost water generated when the evaporator is defrosted, the evaporation dish having a shape in which a bottom surface is concaved toward the evaporator side A water storage portion having a shape for storing the upper portion of the compressor on the recessed bottom surface, and a rib provided along the outer peripheral edge of the water storage portion and protruding from the bottom surface toward the compressor The water storage portion is formed with a step-like stepped portion which descends toward the compressor side around a central portion where the defrosted water first flows in, and the adjacent step is formed by a partition wall It is divided.

According to the present invention, the water storage portion of the evaporation dish is a step-like shape which descends toward the compressor side around the central portion where defrost water generated when defrosting the evaporator first flows in. Since the step portion is formed and the step portions vertically adjacent to each other are partitioned by the partition walls, the defrost water can be effectively evaporated first on the top floor, and when the amount of defrost water increases, from the top floor It can be discharged in stages to the lower floor, and can be efficiently evaporated in order from the upper floor with high evaporation effect. Moreover, since the evaporating dish is provided along the outer peripheral edge of the water storage section and has a rib projecting from the bottom toward the compressor side, the operating heat of the compressor can be retained on the bottom of the evaporating dish. The defrost water stored in the reservoir can be effectively evaporated.

It is the perspective view which showed the internal structure of the machine room of the refrigerator which concerns on embodiment of this invention. It is the state which looked at Drawing 1 from the front, and is a front view showing only the main component. It is a longitudinal cross-sectional view of FIG. It is the longitudinal cross-sectional view which looked at FIG. 2 from the side direction. It is the perspective view which looked at the evaporating dish of the refrigerator which concerns on embodiment of this invention from the upper surface side. It is the perspective view which looked at the evaporating dish of the refrigerator which concerns on embodiment of this invention from the lower surface side. It is a refrigerator which concerns on embodiment of this invention, Comprising: It is explanatory drawing which showed typically the flow of the defrost water which flowed in the evaporating dish.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts will be denoted by the same reference numerals, and the description thereof will be appropriately omitted or simplified. Further, the configuration, size, arrangement and the like of the configuration described in each drawing can be appropriately changed within the scope of the present invention.

Embodiment.
FIG. 1 is a perspective view showing an internal structure of a machine room of a refrigerator according to an embodiment of the present invention. FIG. 2 is a front view of FIG. 1 as viewed from the front and showing only main components. FIG. 3 is a longitudinal sectional view of FIG. FIG. 4 is a longitudinal sectional view of FIG. 2 as viewed from the side. The X axis in the drawing indicates the width direction of the refrigerator 100. The Y axis in the figure indicates the depth direction of the refrigerator 100. The Z-axis in the figure indicates the vertical direction of the refrigerator 100.

The refrigerator 100 which concerns on this Embodiment has an opening in the front surface, and is provided with the main-body part 1 in which the inside was divided by several partition members and the storage chamber 10 of multiple steps | stages was formed. The storage room 10 is, for example, a freezer room, a refrigerator room, a vegetable room or the like. A space sealed with a resin inner box inside the refrigerator 100 and a steel plate outer box outside the refrigerator 100 is formed in the main body 1. A vacuum heat insulating material is installed in the inside sealed by the inner case and the outer case, and the foam heat insulating material such as urethane foam is filled.

Inside the main body portion 1, a cooling chamber 2 and a machine chamber 3 are provided vertically adjacent to each other on the back side of the storage chamber 10. The cooling chamber 2 is disposed above the machine chamber 3, and an air passage for circulating the air in each storage chamber 10 is formed. At the center of the air passage of the cooling chamber 2, an evaporator 20 which constitutes a part of a refrigeration cycle for keeping the storage chamber 10 cool is provided. Above the evaporator 20, an evaporator fan (not shown) for blowing the air cooled by the evaporator 20 into the storage chambers 10 is provided.

The evaporator 20 is a fin and tube heat exchanger provided with a copper or aluminum heat transfer tube and a large number of fins made of aluminum, for example. The evaporator 20 periodically performs a defrosting operation in which frost is melted using a defrost heater in order to avoid a decrease in the cooling performance of the refrigerator 100 due to frost formation. Defrosted water generated by the defrosting of the evaporator 20 is drained to the evaporating dish 5 of the machine room 3 through the drain pipe 21 provided at the lower part of the cooling room 2.

The machine room 3 is provided below the cooling room 2 as shown in FIGS. 1 and 2. The machine room 3 is provided with a compressor 4 and a condenser (not shown) that constitute a part of the refrigeration cycle. In the machine room 3, a machine room fan (not shown) for blowing air to the compressor 4 and the condenser, and an evaporation tray 5 for storing defrost water generated when the evaporator 20 is defrosted. , Is provided.

The compressor 4 compresses the low-temperature low-pressure gas refrigerant flowing out of the evaporator 20 into a high-temperature high-pressure gas refrigerant. The compressor 4 is fixed to the upper surface of the bottom plate 30 via a rubber pedestal 40. The rubber pedestal 40 is provided to absorb the vibration generated during the operation of the compressor 4.

The condenser is connected to the refrigerant discharge port of the compressor 4 through a condensation pipe, and condenses the high temperature and high pressure gas refrigerant discharged from the compressor 4 into a low temperature and high pressure liquid refrigerant. The condensed liquid refrigerant is depressurized by the depressurizing device.

As shown in FIG. 1, the evaporation pan 5 is disposed above the compressor 4 and is fixed to the main body 1. As shown in FIGS. 3 and 4, the evaporation dish 5 is formed by indenting the bottom surface 51 convexly toward the evaporator 20 side, and is configured to store the upper portion of the compressor 4 in the depressed bottom portion. Part 6 is provided.

Next, the configuration of the evaporating dish 5 will be specifically described based on FIGS. 5 to 7 with reference to FIGS. 1 to 4. FIG. 5 is a perspective view of the evaporating dish of the refrigerator according to the embodiment of the present invention as viewed from the top side. FIG. 6 is a perspective view of the evaporating dish of the refrigerator according to the embodiment of the present invention as viewed from the lower side. FIG. 7: is a refrigerator which concerns on embodiment of this invention, Comprising: It is explanatory drawing which showed typically the flow of the defrost water which flowed in the evaporating dish.

As shown in FIGS. 5 and 6, the water storage section 6 of the evaporation pan 5 has a compressor 4 around the central area where defrost water generated when defrosting the evaporator 20 first flows in. A step-like stepped portion which descends toward the side is formed, and adjacent stepped portions are partitioned by the

partitions

60 and 61. Specifically, the water storage unit 6 is configured of a first water storage unit 6A, a second water storage unit 6B, and a third water storage unit 6C having a height difference.

The first water storage portion 6A is formed so as to be surrounded by the first partition wall 60, and defrost water generated when the evaporator 20 is defrosted is first introduced. As shown in FIG. 7, the first water storage portion 6A communicates with the drainage receiving portion 62 located immediately below the drainage pipe 21. Defrosted water flows in through the drainage receiving portion 62.

As shown in FIGS. 3 and 4, the first water storage section 6A is formed at a position facing the top surface of the compressor 4. In the first water storage section 6A, since the operation heat generated by the compressor 4 is convected (see the arrow A) in the lower part, the evaporation efficiency of the defrost water is high, and the evaporation can be performed most effectively.

Further, as shown in FIGS. 3 and 4, the first water storage portion 6A is formed in a curved surface shape in which the bottom surface is recessed toward the compressor 4 side. This is to efficiently evaporate the defrost water flowing to the first water storage section 6A by collecting it at the central portion closest to the position immediately above the compressor 4 whose upper surface is curved. In addition, the evaporation pan 5 may be inclined when assembled and fixed to the main body 1 or may be inclined depending on the installation place. Even in such a situation, the evaporating dish 5 can collect the defrost water which has flowed to the first water storage section 6A at the central part, so that the evaporating dish 5 is not affected by the assembled state or the installation place. Water can be evaporated. Although not shown in detail, the first water storage portion 6A may be formed in an inclined surface shape in which the bottom surface is recessed toward the compressor 4 side. Further, the first water storage section 6A may be configured to be flat without forming the bottom surface in a curved surface or an inclined surface.

The second water storage section 6B is disposed lower than the first water storage section 6A, and is formed so as to be surrounded by the second partition wall 61. That is, the bottom surface of the second water storage section 6B is located closer to the compressor 4 than the bottom surface of the first water storage section 6A. As shown in FIG. 7, the second water storage section 6B is provided as a pan when the defrost water stored in the first water storage section 6A overflows. As shown in FIG. 3 and FIG. 4 also, the defrosting water flowing into the second water storage section 6B is transferred to the bottom surface and the step surface of the second water storage section 6B and the operating heat generated by the compressor 4 evaporates efficiently. be able to.

The third water storage section 6C is disposed on the lower floor than the second water storage section 6B, and is formed so as to be surrounded by the outer peripheral wall 50 of the evaporating dish 5. That is, the bottom surface of the third water storage section 6C is located closer to the compressor 4 than the bottom surface of the second water storage section 6B. As shown in FIG. 7, the third water storage section 6C is provided as a pan when the defrost water stored in the second water storage section 6B overflows. As shown in FIG. 3 and FIG. 4, the defrosting water flowing into the third water storage section 6C is also transferred to the bottom surface and the step surface of the third water storage section 6C to efficiently evaporate the heat generated by the compressor 4 Can.

Further, the evaporation dish 5 is provided along the outer peripheral edge of the water storage portion 6, and provided with a rib 7 which protrudes from the bottom surface toward the compressor 4 side. The rib 7 is provided along the outer peripheral edge of the third water storage portion 6C corresponding to the position where the outer peripheral wall 50 is provided. The evaporation dish 5 can retain the operation heat of the compressor 4 in the area surrounded by the ribs 7, and the defrosted water stored in the first water storage portion 6A, the second water storage portion 6B and the third water storage portion 6C It can be effectively evaporated. In addition, the rib 7 also functions as a reinforcing material that prevents the deformation of the evaporating dish 5.

The rib 7 may be provided so as to surround a part of the outer periphery of the compressor 4 as shown in FIGS. 5 and 6, and although the detailed illustration is omitted, the outer periphery of the compressor 4 You may provide it cyclically | annularly so that it may enclose.

As described above, in the refrigerator 100 according to the present embodiment, the bottom surface 51 of the evaporation dish 5 is shaped so as to be convexly depressed toward the evaporator 20 side. It has the water storage part 6 of the shape which accommodates an upper part. And the water storage part 6 forms the step-like stepped part which descends toward the compressor 4 side around the center part centering on the center part which defrost water generated when defrosting the evaporator 20 initially flows in The step portions adjacent to each other in the upper and lower direction are divided into the

partition walls

60 and 61. Therefore, first, defrost water can be effectively evaporated on the top floor, and when the amount of defrost water increases, it is made to flow out stepwise from the top floor to the lower floor, and from the upper floor with high evaporation effect in order It can be evaporated efficiently. Moreover, since the refrigerator 100 is provided along the outer peripheral edge of the water storage section 6 and has the rib 7 protruding toward the compressor 4 from the bottom surface, the operating heat of the compressor 4 is retained on the bottom surface 51 of the evaporation dish 5 The defrost water stored in the water storage section 6 of each floor can be effectively evaporated.

Moreover, the refrigerator 100 is formed as a curved surface or inclined surface so that the bottom surface of the first water storage portion 6A is recessed toward the compressor 4 side. Therefore, the refrigerator 100 can collect the defrost water which flowed to the 1st water storage section 6A in the central part, and can evaporate efficiently with the operation heat of compressor 4. In addition, evaporation dish 5 may be inclined when assembled and fixed to main body 1 or may be inclined depending on the installation location, but the defrost water flowing to first water storage section 6A may be collected in the central area As it is possible, the defrost water can be effectively evaporated without being influenced by the assembled state or the installation place.

Although the present invention has been described above based on the embodiment, the present invention is not limited to the configuration of the embodiment described above. For example, the configuration of the illustrated refrigerator 100 is merely an example, and the present invention is not limited to the above-described content, and the present invention can be similarly applied to a refrigerator including other components. Moreover, the water storage part 6 is not limited to three water storage parts shown in figure, What is necessary is just to have two or more water storage parts. In short, the scope of the various modifications, applications, and uses that the so-called person skilled in the art makes as needed is mentioned in the scope of the present invention (the technical scope).

DESCRIPTION OF SYMBOLS 1 main-body part, 2 cooling chamber, 3 machine room, 4 compressor, 5 evaporation pan, 6 water storage part, 6A 1st water storage part, 6B 2nd water storage part, 6C 3rd water storage part, 7 ribs, 10 storage rooms, 20 Evaporator, 21 drainage pipe, 30 bottom plate, 40 rubber pedestal, 50 outer peripheral wall, 51 bottom surface, 60 first partition, 61 second partition, 62 drainage receiver, 100 refrigerator.

Claims

A main body having a cooling room and a machine room inside;
An evaporator provided in the cooling chamber;
A compressor provided in the machine room,
And an evaporation pan disposed in the machine room above the compressor and storing defrost water generated when the evaporator is defrosted.
The evaporation dish is
A water storage portion having a shape in which a bottom surface is concaved in a convex shape toward the evaporator, and the concave bottom surface is configured to store an upper portion of the compressor;
And a rib provided along the outer peripheral edge of the water storage portion and protruding from the bottom toward the compressor.
The water storage portion is formed with a step-like stepped portion which descends toward the compressor side around the central portion where the defrosted water first flows in, and the adjacent step portions are partitioned by the partition wall The configuration is refrigerator.
The water storage section is
A first water storage section which is surrounded by a first partition wall and into which the defrosted water first flows;
A second water storage unit disposed on a lower floor than the first water storage unit and surrounded by a second partition;
The refrigerator according to claim 1, further comprising: a third water storage unit disposed on a lower floor than the second water storage unit and surrounded by an outer peripheral wall of the evaporating dish.
The refrigerator according to claim 2, wherein the first water storage portion is formed as a curved surface or an inclined surface so that a bottom surface is recessed toward the compressor.
Provided in the machine chamber of a refrigerator comprising: a main body having a cooling chamber and a machine chamber inside; an evaporator provided in the cooling chamber; and a compressor provided in the machine chamber, the compressor An evaporation dish, which is disposed above and stores defrost water generated when the evaporator is defrosted,
A bottom portion having a shape which is concaved in a convex shape toward the evaporator side, and a water storage portion having a shape in which the upper portion of the compressor is accommodated in the concave bottom surface;
And a rib provided along the outer peripheral edge of the water storage portion and protruding from the bottom toward the compressor.
The water storage portion is formed with a step-like stepped portion which descends toward the compressor side around the central portion where the defrosted water first flows in, and the adjacent step portions are partitioned by the partition wall The configuration is the refrigerator evaporation dish.