JP2901799B2 - refrigerator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator provided with an evaporating dish disposed on the back side of a refrigerator main body for storing defrost water dropped from a cooler.

[0002]

2. Description of the Related Art In a refrigerator, the inside of a refrigerator is cooled by a cooling action of a cooler provided on the back side of a main body. By the way, when the humid air in the room enters the refrigerator by opening and closing the door, the humid air touches the chiller and frosts on it, so when the refrigerator is operated for a long time, the entire chiller is covered with frost. You will be When the entire cooler is covered with frost as described above, the cooling function of the cooler is reduced, and the inside of the refrigerator cannot be sufficiently cooled.

Therefore, conventionally, a defrosting operation for melting the frost of the cooler is performed at predetermined timings. That is, when the accumulated operation time of the compressor for supplying the refrigerant to the cooler reaches a predetermined time, the heater provided close to the cooler is energized, and the frost adhering to the cooler due to the heat of the heater. Is melted and defrosted.
At this time, since the defrost water drops from the cooler, the defrost water is stored in an evaporating dish provided below the cooler. In this case, the evaporating dish is designed to have about 1.5 times the capacity of the defrost water generated by one defrost so as to sufficiently store the defrost water, and hasten the evaporation of the defrost water. Therefore, it is arranged at a position to receive heat from the compressor. Therefore, before the next defrosting operation is performed, the defrosted water stored in the evaporating dish completely evaporates, and the defrosting water drops from the cooler to the evaporating dish in the next defrosting operation. Even if the defrosted water is stored, the defrosted water does not overflow from the evaporating dish.

[0004]

However, if the door cannot be completely closed due to an abnormality of the refrigerator door, or if one forgets to completely close the door, the humid air in the room will be removed. Since it continuously enters the refrigerator, the amount of frost adhering to the cooler increases. For this reason, the amount of defrost water generated by the defrost operation becomes larger than usual, and the defrost water may overflow from the evaporating dish.

Also, when the room temperature is low, the amount of heat generated by the compressor is small, so that the next defrosting operation may be performed without completely defrosting the defrost water in the evaporating dish. In such a case, a large amount of defrost water drops on the evaporating dish, and the defrost water overflows from the evaporating dish.

When the defrosted water overflows from the evaporating dish as described above, in the above-mentioned conventional example, the defrosted water overflowing from the evaporating dish is disposed on the back side of the refrigerator because the evaporating dish is disposed on the back side of the refrigerator. Drops on the floor on the back side of the camera. For this reason, since the defrosting water dropped on the floor surface cannot be found due to the obstruction of the refrigerator body, there has been a problem that the floor surface is rotten.

[0007] The present invention has been made in view of the above circumstances, and its purpose is to remove the defrost water even when the defrost water overflows from an evaporating dish for storing the defrost water. The aim is to provide a refrigerator that can be found quickly and dealt with.

[0008]

SUMMARY OF THE INVENTION The present invention relates to a refrigerator main body.
Cooling fan installed in the machine room provided at the lower back
And disposed in the lower part of the refrigerator main body and communicated with the machine room.
And a duct case with an air inlet on the front.
A condenser housed in a duct case, and an evaporating dish disposed on the back side of the refrigerator main body and storing defrosted water dropped from a cooler, and operated by operating the cooling fan.
By taking air into the duct case from the intake port.
A refrigerator for cooling the condenser , further comprising water guide means for guiding defrost water overflowing from the evaporating dish to the duct case .

[0009]

The defrost water from the cooler is stored in the evaporating dish. At this time, when the defrost water is generated in a larger amount than usual, the defrost water may overflow from the evaporating dish.

[0010] When the defrost water overflows from the evaporating dish as described above, the defrost water is guided to the duct case by the water guide means and is supplied to the intake port formed on the front surface of the duct case.
Dropping in La installation surface. Therefore, when the defrost water overflows from the evaporating dish, the installation surface on the front side of the refrigerator main body gets wet, which indicates that the defrost water overflows from the evaporating dish. In this case, the air inlet is pre-formed on the front of the duct case.
Duct without special means.
Drip defrost water in the case from the front of the duct case onto the installation surface.
Can be lowered.

[0011]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional view of a main part. In FIG. 1, a cooler room 2 is formed on a rear wall portion of the refrigerator main body 1, and a cooler 3 is arranged in the cooler room 2.
A drain port 2a is formed on the bottom surface of the cooler room 2, and the cooler room 2 communicates with the machine room 4 provided below the drain port 2a. Further, a heater cover 5 and a glass tube heater 6 are provided below the cooler 3.

The bottom of the machine room 4 is closed by a bottom plate 7, and the back is closed by a back cover 8 having an exhaust port 8a (see FIG. 3).

In FIG. 3, which is a perspective view of the machine room 4, the machine room 4 is divided into first and second chambers 4a and 4b by a partition plate 9, and a compressor 10 is provided in the first room 4a. Have been. The partition plate 9 is provided with a fan 11. When the fan 11 is driven, the fan 11 is moved from the second chamber 9 a to the first chamber 9.
The air is blown into the chamber 9a.

On the other hand, the evaporating dish 1 is located at a position below the drain port 2a and above the compressor 10 in the machine room 4.
2 are provided.

A container-like duct case 13 connected to the bottom plate 7 is provided below the refrigerator body 1. The duct case 13 forms a duct together with the bottom surface of the refrigerator body 1, and the front side of the duct case 13 has an air inlet 1.
3a are formed. Here, a portion corresponding to the second chamber 4b of the machine room 4 is open in the rear part of the duct case 13, so that the duct case 13 communicates with the second chamber 4b. A condenser 14 is provided in the duct case 13. The condenser 14 receives the vaporized refrigerant from the compressor 10, condenses the vaporized refrigerant by heat radiation, and supplies the condensed refrigerant to the cooler 3 side. With the above configuration, an air passage from the duct case 13 to the second chamber 4b and the first chamber 4a of the machine room 4 is formed, and the condenser 14, the evaporating dish 12, and the compressor 10 are provided in the air passage. To position.

In FIG. 2, which shows a perspective view of the main part, a notch 12 a is formed in the front surface of the evaporating dish 12. A water receiving portion 13b is integrally formed on the back side of the duct case 13, and the water receiving portion 13b is
3 communicates with the inside of the duct case 13 through a hole 13c formed on the back surface. A water guide member 15 as a water guide means having a concave cross section is fixed to a portion of the bottom surface of the refrigerator main body 1 facing the machine room 4. Here, the water guide member 15
Is located below the notch 12a of the evaporating dish 12,
The lower end is located above the water receiving portion 13b of the duct case 13. As shown in FIG. 3, a caster 16 is fixed to a side flange portion of the duct case 13, and a front surface of the duct case 13 is covered with a decorative panel 17.

The compressor 10, the fan 11, and the glass tube heater 6 are energized by a control device (not shown). When the temperature in the refrigerator is lower than the set temperature, the control device controls the compressor 10, the fan 11, and the fan 11. Is energized. When the compressor 10 is driven, the vaporized refrigerant is supplied from the compressor 10 to the condenser 1.
4 is supplied. At this time, the air in the room is sucked into the duct case 13 through the intake port 13a of the duct case 13 by the drive of the fan 11, and the air is also drawn from the duct case 13 into the second chamber 4b and the first Room 4
a to be exhausted indoors. As a result, the condenser 14 in the duct case 13 is cooled, so that the vaporized refrigerant supplied from the compressor 10 to the condenser 14 is cooled and condensed, whereby the liquefied refrigerant is supplied to the cooler 3.

As described above, when the temperature in the refrigerator decreases to the set temperature due to the cooling operation of the cooler 3 to which the refrigerant has been supplied, the controller 10 controls the compressor 10 and the fan 1.
1 stops.

When the door 1a of the refrigerator body 1 is opened, the humid air in the room flows into the refrigerator.
Humid air comes into contact with the frost, and the entire cooler 3 is covered with frost in a long-time operation state.

On the other hand, when the energization time of the compressor 10 reaches a predetermined integrated operation time, the control device executes a defrosting operation of energizing the glass tube heater 6 when the compressor 10 is in a cut-off state. As a result, the frost adhering to the cooler 3 is melted by the heat of the glass tube heater 6, and is dropped and stored in the evaporating dish 12 through the drain port 2a as defrost water.

When the power supply to the heater has been completed for a predetermined time, the control unit returns to the normal cooling operation and drives the compressor 10 in accordance with the temperature in the refrigerator. During such a cooling operation, the compressor 1
Since 0 generates heat and heats the evaporating dish 12 located above it, the evaporation of the defrost water in the evaporating dish 12 is promoted. At this time, the air warmed by the condenser 14 in accordance with the driving of the fan 11 passes through the evaporating dish 12, so that the evaporation of the defrost water is further promoted.

By the way, when the door 1a is not completely closed, a large amount of frost adheres to the cooler 3 because the moist air continuously enters the inside of the refrigerator. In such a state, when the above-described defrosting operation is performed, a large amount of defrost water drops from the cooler 3 onto the evaporating dish 12. In this case, although the evaporating dish 12 is set to have a capacity capable of sufficiently storing the defrost water generated by one defrosting operation, when a large amount of defrost water is generated, the evaporating dish 12 From which the defrost water overflows.

At this time, the notch 12a is formed in the front of the evaporating dish 12, and the water guide member 15 is located below the notch 12a. Water drops from the notch 12a to the water guide member 15 and can be received here. And the water guide member 1
The defrost water received in 5 is guided by the water guide member 15 and flows down to the water receiving portion 13b provided in the duct case 13 to pass through the duct case 13 from the hole 13c, and eventually from the intake port 13a to the floor surface. Will begin to flow down. As a result, when a situation occurs in which the defrost water overflows from the evaporating dish 12, the defrost water is supplied to the intake port 13 a of the duct case 13.
From the floor.

According to the above configuration, the water guide member 15 is provided so as to connect the evaporating dish 12 for storing the defrost water and the duct case 13 in which the condenser 14 is provided. The defrost water overflowing from the evaporating dish 12 is guided to the duct case 13 by the
Defrosted water overflowing from 2 is taken into the inlet 13a of the duct case 13.
From the floor. Therefore, unlike the conventional case in which the defrost water overflowing from the evaporating dish drops on the floor surface on the back side of the refrigerator body, the leak of the defrost water can be found immediately, so that the floor surface is rotten. Can be prevented beforehand.

Further, in the case of the above embodiment, since the water guide member 15 is newly provided and the evaporating dish 12 and the duct case 13 can be coped with with small changes, it is possible to suppress the increase in cost as described above. Excellent effects can be exhibited. In this case, the inlet 13
a is formed in advance, so that the inside of the duct case 13 is removed.
In order to allow frost water to drip from the front of the duct case 13,
There is no need to specially modify the case 13.

[0026]

[0027]

As is apparent from the above description, according to the refrigerator of the present invention, the defrost water overflowing from the evaporating dish is sucked in the front.
Since the water guide means is introduced to the duct case with the air vent, even if the defrost water overflows from the evaporating dish for storing the defrost water, the defrost water is quickly found and detected. It has an excellent effect that it is possible to deal with it.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a refrigerator bottom showing one embodiment of the present invention.

FIG. 2 is a perspective view of a main part.

FIG. 3 is an exploded perspective view of a refrigerator bottom.

[Explanation of symbols]

1 is a refrigerator main body, 3 is a cooler, 10 is a compressor, 1
2 is an evaporating dish, 13 is a duct case, and 14 is a condenser.

Claims (1)

(57) [Claims] 1. A machine provided at a lower rear portion of a refrigerator body.
A cooling fan disposed in the room,
It is arranged and communicates with the machine room, and an intake port is formed in the front
Duct case and this duct case
A condenser, comprising an evaporating dish disposed on the back side of the refrigerator body and storing defrost water dropped from a cooler ,
By operating the cooling fan, outside air is
Cools the condenser by drawing air into the source
The refrigerator as described above, further comprising a water guide for guiding defrost water overflowing from the evaporating dish to the duct case .