JPH09296980A - Evaporator for defrosted water in cooling storeroom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently evaporate defrosted water by increasing the area of an evaporating dish. SOLUTION: An evaporating dish 33 for receiving and stroring defrosted water can be housed so as to be loaded and unloaded from the lower side to the rear side of a condenser 11 and a condenser fan 28. In the rear surface of a fan cover 25, an air guide 41 for applying air from the condenser fan 28 toward the rear end part of the evaporating dish 33 is provided. Defrosted water produced in a cooler is stored in the evaporating dish 33 through a drain pipe 38. The condenser fan 28 is rotated during a cooling operation, go that air outside a machine chamber 3 is sucked, passes through the condenser 11 to cool the condenser 11, and then, hot exhaust air is applied to the evaporating dish 33 by the air guide 41. Thus, the defrosted water is urged to evaporate. Thus, the area of the evaporating dish 33 can be increased even in a narrow machine chamber 3. Further, since the hot exhaust air is actively applied to the evaporating dish 33 by the air guide 41, the defrosted water can be efficiently evaporated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for evaporating defrost water from a cooler in a cooling storage.

[0002]

2. Description of the Related Art As an evaporator of this type, an evaporator tray for receiving defrosting water from a cooler is installed behind a condenser fan attached to the condenser, and It is known that the warm exhaust gas after cooling the air is blown out from the condenser fan and applied to the stored defrost water to be evaporated. Here, one of the factors for efficient evaporation is how to make the area of the evaporating dish large, but especially in the case of a small refrigerator where the machine room has to be small, the installation space of the evaporating dish is limited. Therefore, such an evaporator is not suitable.

Another major element for efficient evaporation is to apply warm exhaust gas strongly to the defrost water in the evaporation dish. In that case, for example, if the humidity around the refrigerator is high or the number of times the door is opened and closed is large and the defrosted water storage amount tends to increase, the warm exhaust gas is strongly applied to the defrosted water to the evaporation tray. There was a risk of spilling from the edge, and this was also a room for improvement. The present invention has been completed in view of the above points,
The purpose is to make the area of the evaporation dish large even in a small machine room so that the defrosting water can be efficiently evaporated. Another object is to prevent defrost water from spilling from the evaporation dish when hot air is strongly blown to improve evaporation efficiency.

[0004]

As means for achieving the above object, a defrosting water evaporator for a cooling storage according to claim 1 is an evaporation tray for storing defrosting water from a cooler in a machine room. In the one for evaporating the defrosted water stored by the warm exhaust from the condenser fan attached to the condenser of the refrigeration cycle, the evaporating dish is installed from the condenser over the lower side of the condenser fan, A feature is that a guide is provided on the outlet side of the condenser fan to blow the warm exhaust gas toward the evaporation tray.

Further, in the defrosting water evaporator of the cooling storage according to the second aspect, the machine room is provided with an evaporating dish for receiving defrosting water from the cooler, and the fan blows warm air toward the evaporating dish. In the one for evaporating the defrosted water stored in, a configuration is provided in which the return portion that prevents the stored defrosting water from spilling out is provided at the edge of the evaporation tray on the side facing the blowing direction of the warm air. There is a feature in the place.

[0006]

Function and Effect of the Invention

<Invention of Claim 1> The evaporation tray is installed from the condenser to below the condenser fan, and the hot exhaust air from the condenser fan is blown to the defrost water in the evaporation tray by the guide, so that the defrost water evaporates. To be done. In other words, the structure is such that the evaporating tray is installed from the condenser to the lower side of the condenser fan, so that the area of the evaporating tray can be wide even in a small machine room, and the warm exhaust can be positively performed by the guide. Since it is directed to the evaporation dish, the defrosted water can be efficiently evaporated.

<Invention of Claim 2> When the hot air is strongly blown to the defrosted water, the defrosted water tends to spill out from the edge of the evaporation tray on the side opposite to the blowing direction of the hot air.
The defrosted water does not spill because the return portion is provided at the edge. After evaporating the defrost water efficiently,
It is possible to prevent defrost water from spilling from the evaporation dish.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIG.
7 will be described with reference to FIG. First, FIG. 1 shows an external appearance of a commercial refrigerator 1 according to the present embodiment, which is configured by providing a machine room 3 on an upper portion of a refrigerator main body 2 formed of a heat insulating box. In the refrigerator body 2, a refrigerating chamber 4 for storing food etc. is formed (see FIGS. 2 and 3),
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
Front panel 7 with a large number of ventilation holes 8 on its front surface
Is removably attached, and the main components of the refrigeration cycle are arranged inside the machine room 3. That is, this refrigeration cycle includes a compressor 10, a condenser 11, a throttle device (not shown), and a cooler 12 (see FIG. 3).
Is a well-known configuration in which they are sequentially connected so as to form a closed loop, and a cooler box 15 in which the cooler 12 is installed is provided in the left half of the base plate 14 provided in the machine room 3 when viewed from the front. The condenser 11 is arranged on the front side and the compressor 10 is arranged on the rear side in the front and rear in the right half.

The cooler box 15 is composed of a heat-insulating box body, and as shown in FIG.
An in-compartment air suction port 17 that opens to the ceiling of the refrigerator body 2 is formed on the front side of the cooler 12 (on the left side in the same figure), and a cool air outlet 18 is formed on the back side. A cooling fan 19 is arranged in the cold air outlet 18. When the refrigerant flows into the cooler 12 and a cooling action is generated, the cooling fan 19 is operated to circulate the air in the refrigerating chamber 4 so as to pass through the cooler box 15, thereby cooling the inside of the refrigerator. Driving is now taking place.

On the other hand, on the far side of the right half region of the base plate 14, as shown in FIG.
Has been fixed through. Further, as shown in FIG. 5, the water receiving tray 21 is attached to the front end portion of the right half of the base plate 14 while being floated upward from the base plate 14 by receiving the left and right side edges of the water pan 21 with brackets 22. Has been.

On the front end side of the water receiving tray 21, the condenser 11 described above is mounted via a mounting member 23 with its bottom surface floating. A fan cover 25 in the form of a rectangular tube is provided in series behind the condenser 11,
A fan motor 26 is fixed to the rear of the fan cover 25 via a bracket 27, and a condenser fan 28 is attached to the fan motor 26 inside the fan cover 25. When the fan motor 26 is energized to rotate the condenser fan 28, the air taken into the machine room 3 through the ventilation holes 8 cools the condenser 11 while passing through the condenser 11, and heat is exchanged. The rear warm exhaust is blown out backward. An air filter 30 is attached to the front surface of the condenser 11 so as to cover the entire area thereof.

Further, a shallow accommodating recess 31 having a flat rectangular shape is bored on the upper surface of the base plate 14 extending from the lower surface of the water receiving tray 21 to a rear side thereof by a predetermined dimension, and the accommodating recess 31 is formed. An evaporating dish 33 that receives and stores defrost water is detachably accommodated therein. As shown in FIG. 6, the evaporating dish 33 is formed in the shape of a rectangular plate with an open upper surface, and has a handle portion 34 bent in a U-shaped cross section on the front surface portion. Then, the evaporating dish 33 is taken in and out of the accommodation recess 31 from the front side by holding the handle portion 34, and in the accommodated state, as shown in FIG. 4, the rear end thereof has a predetermined size behind the water receiving dish 21. It is designed to project. Then, as shown in FIG. 7, the upper edge of the rear plate 35 of the evaporating dish 33 is bent at a right angle toward the front so that the upper surface of the evaporating dish 33 on the rear end side is covered by a predetermined dimension. 36 is formed.

On the other hand, a drain pipe 38 is provided so as to project from the bottom side of the side surface of the cooler box 15, and the tip of the drain pipe 38 faces the upper surface at the rear end side of the evaporation dish 33 from the side, and the drain pipe 38 is generated. Defrosting water flows into the evaporation tray 33 through the drain pipe 38. In addition, a drain port (not shown) is opened at an appropriate position on the bottom surface of the water receiving tray 21 that accommodates the condenser 11 and the like, and cleaning water after washing the condenser 11 and the like passes through the drain port and then inside the evaporation tray 33. It is supposed to flow into.

On the rear surface side of the fan cover 25, two air guides 40 and 41, which are slightly lowered, are provided at the upper end and the central height position, of which the lower one is mainly. The air guide 41 transfers the warm exhaust gas blown out from the condenser fan 28 to the water tray 2 in the evaporation tray 33.
It plays the function of guiding the parts to be projected toward the rear of the unit 1.

This embodiment has a structure as described above,
Subsequently, the operation will be described. The defrosting water generated from the cooler 12 by the defrosting operation or the like flows into the evaporation tray 33 through the drain pipe 38 and is stored therein. Further, cleaning water after cleaning the condenser 11 and the like is also stored in the evaporation tray 33 from the drain port. Then, during the cooling operation, the condenser fan 28 is rotationally driven, so that the air outside the machine room 3 flows into the condenser 11 through the ventilation holes 8 of the front panel 7 and the air filter 30 and is heat-exchanged. The warm exhaust of is guided by the lower air guide 41,
As shown by the arrows in FIGS. 6 and 7, the defrosted water w stored in the evaporation dish 33 is strongly sprayed, and the evaporation of the defrosted water w stored in the evaporation dish 33 is promoted.

Here, when the storage amount of the evaporation tray 33 becomes large due to the mixing of cleaning water after cleaning the condenser 11 and the like, the warm exhaust gas is strongly blown from the front as described above, and therefore the defrost water is defrosted. w may be spilled from the rear edge side of the evaporation dish 33. In that respect, in the present embodiment, since the return portion 36 is formed at the upper edge of the rear plate 35 of the evaporation tray 33, the defrosting water w pressed by the warm exhaust air is moved forward by the return portion 36 as shown in FIG. It is reliably returned and is prevented from spilling out of the evaporation dish 33.

As described above, according to this embodiment, the evaporation dish 3
Since 3 is installed from the condenser 11 to the lower side of the condenser fan 28, the area of the evaporation tray 33 can be made large even in the narrow machine room 3, and the air guide 41 can be used for warm exhaust. The defrosting water w can be efficiently evaporated because the defrosting water w is actively sprayed toward the evaporation tray 33. Further, in a state where a large amount of defrost water w is stored in the evaporation tray 33, even if the warm exhaust gas is strongly blown to increase the evaporation efficiency, the defrost water w directed to the trailing edge side of the evaporation tray 33 is returned. It is returned inward by the part 36 and is effectively prevented from spilling.

<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, and other than the following. Also, various modifications can be implemented without departing from the scope of the invention. (1) To prevent defrost water from spilling from the evaporating dish by providing the return part, the evaporation fan is provided separately from the condenser fan to promote evaporation with a type of hot air. The same can be applied to the thing. (2) Further, the present invention is not limited to the refrigerator shown in the above embodiment, but may be, for example, a freezer, a freezer-refrigerator, a freezer showcase,
It can be widely applied to all refrigerated storages including a refrigeration cycle such as a thawing storage.

[Brief description of drawings]

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

FIG. 2 is a front view of a machine room with a front panel removed.

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

FIG. 4 is a sectional view taken along line IV-IV of FIG. 2;

FIG. 5 is a perspective view showing an installation position of an evaporation dish.

FIG. 6 is a perspective view of an evaporation dish.

FIG. 7 is a partial sectional view of an evaporation dish.

[Explanation of symbols]

3 ... Machine room 11 ... Condenser 12 ... Cooler 14 ... Base plate 25 ... Fan cover 28 ... Condenser fan 31 ... Housing recess 33 ... Evaporating tray
36 ... Return part 38 ... Drain pipe 41 ... Air guide w ... Defrost water

Claims (2)

[Claims] 1. A machine room is provided with an evaporation tray for receiving defrosting water from a cooler, and the defrosting water stored therein is evaporated by warm exhaust from a condenser fan attached to a condenser of a refrigeration cycle. In the above, the evaporating dish is installed from the condenser over the lower side of the condenser fan, and a guide for blowing the warm exhaust gas toward the evaporating dish is provided on the outlet side of the condenser fan. Defrost water evaporation device. 2. An evaporation dish in which a machine room is provided with an evaporation dish for receiving defrosting water from a cooler, and hot air is blown toward the evaporation dish by a fan to evaporate the defrosting water stored therein. A defrosting water evaporator for a cooling storage, which is provided with a return portion for preventing stored defrosting water from spilling on an edge of the side facing the blowing direction of the warm air.