JPH09243235A - Cooling storage chamber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply clean a condenser without being annoyed by cleaning waste water treatment. SOLUTION: A water reception pan 18 having an outfall is provided below a condenser 9, below which an evaporation pan 16 is placed. With this construction upon cleaning of the condenser 9 and a fan cleaning waste water flows into the water reception pan 18 and flows out from an outfall into an evaporation pan 16. For this, the cleaning waste water is stored on the evaporation pan 16 together with defrosted water from a cooler for evaporation processing. Accordingly, maintenance work is sharply simplified without being annoyed by cleaning waste water treatment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling storage with improved condenser-related structure of a refrigeration cycle.

[0002]

2. Description of the Related Art For example, a refrigerator that cools and stores food at a few degrees Celsius is generally equipped with a refrigeration cycle in which a compressor, a condenser, a cooler and the like are formed in a closed loop, and a refrigerant is circulated in the refrigeration cycle for cooling. The food in the storage room is cooled by utilizing the cooling action in the container. Further, the condenser of this type of refrigerator is provided with a fan device for smoothly radiating heat therein, so that the air passed through the air filter is allowed to flow into the condenser. Therefore, these air filters, condensers, fan devices, etc., become clogged with dust during long-term use, and therefore need to be cleaned regularly.

As a conventional technique for dealing with such cleaning, for example, a structure disclosed in Japanese Patent Laid-Open No. 148572/1993 is known. This is a structure in which a water pan with a drainage pipe is placed below the condenser.When it is necessary to clean the condenser, etc., connect a drainage hose to the drainage pipe to make it drainable, and Clean water is sprayed to clean the condenser.

[0004]

However, with the above configuration, although the condenser can be efficiently cleaned, this time it is difficult to process the cleaning waste water flowing out from the drain hose. That is, in such a case, the washing wastewater that normally flows out from the drainage hose must be once received in a bucket and then discarded in the kitchen washing area. Also, if the cleaning wastewater is to be drained from the drain hose to the kitchen floor, the floor must be cleaned after cleaning the condenser.
Very cumbersome.

The present invention has been completed in view of the above points, and an object of the present invention is to provide a cooling storage which can easily clean a condenser without having to deal with treatment of washing wastewater. To do.

[0006]

According to a first aspect of the present invention, there is provided a cooling storehouse having a machine room having a condenser of a refrigerating cycle and an evaporation tray for receiving defrosting water from the cooler and evaporating it. , With a water tray below the condenser,
The water receiving tray is characterized in that a drain outlet for discharging the received water into the evaporation tray is formed.

A cooling storage according to a second aspect of the present invention is the cooling storage according to the first aspect, in which the water tray is arranged so as to overlap the evaporation tray, and the drain port of the water tray faces the evaporation tray. It is characterized in that the draining edge is formed on the inner peripheral edge portion of the drainage port so as to hang down toward the evaporation dish side.

[0008]

Actions and effects of the present invention

<Invention of Claim 1> According to the above configuration, when cleaning the condenser, the cleaning wastewater that has washed away the condenser once flows into the water receiving tray and flows out from the drain port to the evaporating tray. Therefore, the cleaning wastewater of the condenser is stored in the evaporating dish together with the defrosting water from the cooler and is evaporated here, so that the cleaning wastewater is not required to be processed.

<Invention of claim 2> In the invention of claim 2,
The water receiving tray is arranged so as to overlap the evaporation receiving tray, and the cleaning wastewater once stored in the water receiving tray flows down directly to the evaporation receiving tray through the drainage port. In addition to being compact as a whole because the water tray and the evaporation tray are in a stacked state,
The flow path of the cleaning waste water is simplified, clogging of the flow path is less likely to occur, and maintenance is easy. Moreover, since the drain edge is formed on the inner peripheral edge of the drainage port, the drain edge is smoothly drained when the wash waste water flows from the water receiving tray to the evaporating tray, and the wash waste water has a surface tension of water. Thus, it is possible to reliably prevent the water from flowing to the unnecessary portion along the bottom of the saucer.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.

First, FIG. 1 shows an external appearance of a commercial refrigerator 1 according to this embodiment, which is constructed by having a machine room 3 on an upper portion of a refrigerator main body 2 made of a heat insulating box. . Refrigerator body 2 has a refrigerating room 4 in which food and the like are stored
Is formed (see FIGS. 2 and 3), and the opening is opened and closed by the heat insulating door 5.

The machine room 3 is divided on both sides by side panels 6 fixed to the ceiling of the refrigerator body 2, and
A front panel 7 having a large number of ventilation holes is detachably attached to the front surface thereof, and inside the machine room 3, main components of the refrigeration cycle are arranged. That is, this refrigeration cycle includes a compressor 8, a condenser 9,
It is a well-known configuration in which a throttle device (not shown), a cooler 10 and the like are connected in sequence so as to form a closed loop, and the cooler 10 is installed in the left half of the base plate 11 provided in the machine room 3. The provided cooler box 12 is arranged, and the condenser 9 is arranged on the front side and the compressor 8 is arranged on the back side in the right half.

The cooler box 12 is composed of a heat insulating box, has the cooler 10 inside, and is located on the front side (left side in FIG. 3) of the cooler 10 and opens to the ceiling of the refrigerator main body 2. The inner air suction port 13 is formed, and the inner side (FIG. 3) is formed.
A cold air suction port 14 is formed on the right side of the drawing), and a cooling fan 15 is arranged in the cold air suction port 14. When the refrigerant flows into the cooler 10 and a cooling action is generated, the cooling fan 15 is operated to circulate the air in the refrigerating chamber 4 so as to pass through the cooler box 12 and thus the inside of the refrigerator. Cooling operation is performed.

On the other hand, as shown in FIGS. 4 and 5, the base plate 1
A compressor 8 is provided on the rear side of the right half region of 1 with a leg portion 8a.
And a rectangular shallow recess 11a is formed in the remaining area in front of it, and the evaporation dish 16 is detachably accommodated therein. The evaporating dish 16 is in the shape of a rectangular dish having an open upper surface, is positioned by the recessed portion 11a, and has a handle portion 16a formed by bending the front surface portion in a U-shaped cross section. A water tray mounting member 17 is fixed to the base plate 11 so as to straddle the front half of the evaporation tray 16, and the water tray mounting member 17 has an upper surface in the front-back direction with respect to the evaporation tray 16. Water tray 1 with a short rectangular shape
8 is fixed so as to overlap with the evaporating dish 16, and the condenser 9 is fixed to the inside of the evaporating dish 16 by co-tightening to the water tray mounting member 17 via legs (not shown).

A fan cover 19 in the form of a rectangular tube is provided in series behind the condenser 9, and a fan motor 20 is fixed to the rear of the fan cover 19 via a bracket 21. The fan motor 20 has a fan. Cover 1
A fan 22 is attached to the inside. With this, by energizing the fan motor 20 and rotating the fan 22, the air in the machine room 3 can be sent out backward through the condenser 9, thereby cooling the heat radiation of the condenser 9. In addition, an air filter 23 is arranged on the front surface of the condenser 9 so as to cover the entire area thereof, and air from the fan 22 is guided downward and blown into the evaporation tray 16 behind the fan cover 19. The air guide 24 is provided. Further, a drain pipe 25 is provided so as to penetrate the cooler box 12, and the cooler 1 inside
The defrost water generated at 0 can be poured into the evaporation tray 16 through the drain pipe 25.

As shown in FIGS. 6 and 7, the water receiving tray 18 has a plurality of drainage ports 26 dispersed therein. The drainage port 26 is formed by press punching from the inside of the water receiving tray 18 to form a draining edge portion 27 that smoothly hangs and hangs down at the inner peripheral edge portion. As a result, the water that has flowed into the water receiving tray 18 flows down through the drain port 26 into the evaporating tray 16 and is stored.

This embodiment has the above configuration, and its operation will now be described. During the cooling operation, the fan motor 20 is energized together with the compressor 8 so that the air outside the machine room 3 flows into the condenser 9 through the ventilation holes of the front panel 7 and the air filter 23, and further the air guide 24 causes the evaporation tray 16 of the evaporation tray 16 to move. It passes above, and finally passes around the compressor 8 and is discharged to the outside of the machine room 3. Such a flow of air cools the heat radiation from the condenser 9 and the compressor 8 and promotes the evaporation of defrost water stored in the evaporation tray 16, but at the same time, the air filter 23 and the condenser 9 Fine dust or the like will gradually adhere to the inside air passage or the surface of the fan 22. Since these dusts gradually accumulate, it is desirable to appropriately clean them in order to maintain good heat exchange efficiency in the condenser 9. In the present embodiment, the cleaning can be performed as follows.

First, the front panel 7 of the machine room 3 is removed from the side panel 6 to expose the condenser 9 and the like. Then, the air filter 23 is removed, a water hose is connected to, for example, a water faucet, and water is condensed from the tip of the condenser 9
And then wash it with a brush. The cleaning wastewater from which the dirt has flowed down flows down from the surfaces of the condenser 9 and the fan 22 and is once received by the water pan 18.
It flows down to the evaporating dish 16 through the drainage port 26 formed at the bottom thereof, and is stored there. The air filter 23
Can be washed by bringing it to an appropriate washing place.

After the washing operation, the air filter 23 is attached with the washing waste water remaining in the evaporation tray 16, and the front panel 7 is attached again, and the operation is completed. Evaporating dish 16
The cleaning wastewater stored in (3) is evaporated by the flow of warm air accompanying the rotation of the fan 22 and finally evaporated from the evaporation tray 16 to disappear. As a result of evaporation of the cleaning wastewater, dust gradually remains and accumulates in the evaporation dish 16, but the evaporation dish 16 is originally removed regularly to remove dead bodies such as dust and insects. Since it is washed with water, the dust that has flowed in from the side of the water tray 18 may be washed at the same time.

As described above, according to this embodiment, the condenser 9
When cleaning the fan and the fan 22, the cleaning wastewater once flows into the water tray 18 and flows out from the drain port 26 to the evaporation tray 16, so that the cleaning wastewater together with the defrosting water from the cooler 10 is evaporated. Are stored in and are evaporated here. Therefore, when cleaning the condenser 9, it is not necessary to treat the cleaning wastewater one by one, and it is not necessary to prepare a bucket for receiving the cleaning wastewater or to clean the kitchen floor, so that maintenance work can be performed. It will be much easier.

Further, particularly in this embodiment, the water pan 18
The draining edge 2 on the inner peripheral edge of the drainage port 26 formed at the bottom of the
7 is formed, the water receiving tray 18 to the evaporating tray 16 are formed.
The drainage edge 27 smoothly drains the washing wastewater when it flows out, and it is possible to reliably prevent the washing wastewater from flowing along the bottom of the water tray 18 to an inconvenient place such as on the base plate 11 due to surface tension. can do.

<Other Embodiments> The present invention is not limited to the embodiments described above and illustrated in the drawings. For example, the following embodiments are also included in the technical scope of the present invention. In addition to the following, various modifications may be made without departing from the scope of the invention.

(1) In the above-described embodiment, an example of application to a refrigerator is shown, but the invention is not limited to this, and is widely applied to a cooling storage including a freezing cycle such as a freezer, a freezer-refrigerator, a freezer showcase, and a defroster. be able to.

(2) In the above embodiment, the water pan 18 and the evaporation pan 16 are arranged so as to be vertically stacked, and the water pan 1
Although the cleaning wastewater was made to flow directly from the drain port 26 of 8 to the evaporating dish 16, the water receiving tray and the evaporating tray are arranged offset from each other due to the mechanical arrangement in the machine room, and the drainage provided in the water receiving tray is disposed. It is also possible to connect the mouth and the evaporation dish with a drainage pipe.

[Brief description of drawings]

FIG. 1 is a perspective view of an entire refrigerator showing an embodiment of the present invention.

[Figure 2] Front view of the machine room with the front panel removed

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a perspective view showing a condenser-related portion.

FIG. 6 is a perspective view of a water tray

[Figure 7] Front view of the water tray

[Explanation of symbols]

1 ... Refrigerator 2 ... Refrigerator main body 3 ... Machine room 7 ... Front panel 8 ... Compressor 9 ... Condenser 10 ... Cooler 16 ... Evaporation tray 18 ... Water tray 23 ... Air filter 26 ... Drainage port 27 ... Draining edge

Claims (2)

[Claims] 1. A machine room equipped with a condenser for a refrigeration cycle and an evaporation tray for receiving and defrosting defrosting water from a cooler, wherein a water receiving tray is provided below the condenser, and A cooling storage cabinet, characterized in that the water receiving tray is provided with a drain outlet for letting out the water received therein into the evaporation tray. 2. The water receiving tray is arranged so as to be stacked above the evaporation tray, and a drain port of the water receiving tray is formed in a region facing the evaporation tray so as to drain water into the evaporation tray. At the same time, the drainage port has an inner peripheral edge portion formed with a drainage edge portion that hangs down toward the evaporation dish side.