JPH0527021B2 - - Google Patents

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention provides a system in which a specification switching chamber is provided in the lower part of a freezing compartment, in which defrosting water from a cooler is passed through the specification switching chamber. This relates to a refrigerator that drains water outside the refrigerator.

(Prior art) Conventionally, in fan-cooled refrigerators, the drainage route for draining defrost water from the cooler to the outside of the refrigerator is a drainage hose led out to the outside of the refrigerator to the drain port body that receives the defrost water. One end of the two was connected, and the drain hose was buried in the partition wall made of heat insulating material between the freezer compartment and the specification switching room below, and in the back insulating material of the heat insulating box.

(Problem to be solved by the invention) However, since the partition wall is manufactured separately and assembled inside the insulation box, the drain hose must be connected at the same time as the partition wall is assembled. In addition to being troublesome, the seal at the connection part was not reliable, and defrost water leaked from the drain hose into the insulation material, reducing insulation performance. Also,
In the conventional structure, all the drainage channels are buried in the insulation material, so if a blockage occurs due to ice or dirt, it is difficult to remove it by cleaning or the like.

Therefore, it is an object of the present invention to facilitate assembly, provide a reliable seal against defrost water, and reliably prevent leakage into the insulation material, and prevent drainage channels from freezing or becoming clogged with debris. To provide a refrigerator in which it is relatively easy to remove spills.

[Structure of the Invention] (Means for Solving the Problems) The present invention provides a first drain port body through which defrosting water from a cooler flows downward through a partition wall between a freezing compartment and a specification switching compartment. A damper device that adjusts the amount of cold air supplied to the specification switching chamber and a defrosting water from the first drain port body are provided on the heat insulating molded body that is removably fixed to the rear surface of the specification switching chamber. A second drain port body is installed in advance so as to be covered by the heat insulating molded body, and the opening end is connected to the specification switching chamber so as to communicate with a drain hose embedded in the heat insulating wall and leading to the outside of the refrigerator. A drainage receiver is provided that opens at the back of the drainage receiver, and when the heat insulating molded body is fixed to the rear of the specification switching chamber, the outflow end of the second drainage port body installed in advance flows into the interior from the open end of the drainage receiver. It is characterized by being inserted and connected.

(Function) According to the above means, when the heat insulating molded body covering the damper device is fixed to the back surface of the specification switching chamber, the second drain port body previously attached to the heat insulating molded body becomes the first drain port body. Since the position allows the defrosting water from the drain to flow into the drainage receiver, assembly is easy, and the second drain port body is attached to the heat-insulating molded body in advance, and the drainage receiver fixes the heat-insulating molded body. Since it is attached to the back of the specification switching chamber before the heating, it is possible to seal these parts securely and reliably prevent defrosting water from leaking into the insulation material. Since the second drain port body can be removed,
It is possible to relatively easily remove ice and debris from the drainage route.

(Example) An example of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a refrigerator body, in which a freezing compartment 2 is provided in the upper part, and a specification switching compartment 3, a refrigerator compartment 4, and a vegetable compartment 5 are arranged in this order below the freezing compartment 2. A cooler 6 for fan cooling is installed near the back of the freezer compartment 2.
A fan 7 for blowing cold air from the cooler 6 is disposed on the back of the refrigerator main body 1, and the cold air blown by the fan 7 is sent to the specification switching chamber 3 and the refrigerator compartment 4. A cold air duct 8 (only a portion is shown) is provided. Reference numeral 9 denotes a partition wall that separates the freezer compartment 2 and the specification switching room 3. A defrost water receiving gutter 10 facing the cooler 6 is disposed deep inside the upper surface of this partition wall, and an aluminum gutter 9 is connected to the lower end of the partition wall. One drain port body 11 is formed to penetrate the partition wall 9. Reference numeral 12 denotes a heat insulating molded body formed by molding a heat insulating material, and an opening 13 (see Fig. 4) connected to the cold air duct 8 in the center thereof has an opening size corresponding to the rotation of the damper plate 14. A damper device 15 (see FIG. 3) is installed in advance. 16
is the front cover of the heat insulating molded body 12, which has an opening 1.
A cold air outlet 17 is provided for blowing out the cold air that has passed through the specification switching chamber 3 into the specification switching chamber 3. Reference numeral 18 designates a second funnel-shaped drain port body, which is installed in advance in a recess 19 formed in the upper left part of the heat insulating molded body 12 in FIG. 4, and a seal packing 20 is installed on its upper surface. Narrow diameter portion 18a in the lower half of the second drain body 18
is oriented rearward and diagonally downward, and a freeze prevention heater 21 is wrapped around its outer periphery. Reference numeral 22 designates a drainage receiver having a large-diameter opening end 22a and a narrow-diameter portion 22b in the lower half. 22a is open on the back side of the specification switching chamber 3, and a flange portion 2 is provided at the periphery of the open end 22a.
2c is brought into watertight pressure contact with the back plate 3a via a seal packing 24. And this drainage receiver 2
2 is embedded in a heat insulating wall 25 that forms the periphery of the refrigerator body 1, except for the vicinity of the open end 22a. Reference numeral 26 denotes an antifreeze heater wrapped around the outer periphery of the narrow diameter portion 22b of the drainage receiver 22. Reference numeral 27 denotes a drainage hose whose upper end is connected to the narrow diameter portion 22b, which is buried within the heat insulating wall 25, and whose lower end is positioned opposite to the evaporation pan (not shown). As described above, the heat insulating molded body 12 to which the tamper device 15 and the second drain port body 18 are attached in advance is inserted into the back side of the specification switching chamber 3 from the front, and is secured to the back by screws 28 (see Fig. 5). It is fixed to the plate 3a. When the heat insulating molded body 12 is inserted into the back side of the specification switching chamber 3 in this way, the second drain port body 18 becomes the first drain port body 11.
, and its narrow diameter portion 18a is directly under the drainage receiver 2.
It is inserted into the inside of the open end 22a of 2. Furthermore, 29
is a seal packing attached to the heat insulating molded body 12 so as to surround the recess 19, and a part of this is arranged along the U-shaped recess of the seal packing 20 as shown in FIG. There is. This U-shaped bent portion is designed to seal between the opening end of the second drain port body 18 and the convex portion 3b provided on the ceiling plate of the specification switching room 3, as shown in FIG. There is.
30 is a defrosting heater disposed directly below the cooler 6.

Next, the operation of the above configuration will be explained. When the cooler 6 is cooled by the operation of a compressor (not shown), a part of the cold air cooled by the cooler 6 is directly supplied to the freezer compartment 2 by the fan 7, and the remaining cold air is Air is blown into the specification switching room 3 and the refrigerator compartment 4 through the duct 8, and a part of the cold air blown into the refrigerator compartment 4 is supplied into the vegetable compartment 5, and each compartment 2 to 5 reaches the set temperature. It is cooled like this.

When the amount of frost adhering to the cooler 6 reaches a certain value, the defrost heater 30 generates heat and defrosts the water. The first drain body 1 is guided by the slope.
1, the defrosting water that has flowed down enters the drainage receiver 22 guided by the second drainage port body 18,
The dish is led to an evaporation dish (not shown) via a drain hose 27. Note that when the defrosting heater 30 is energized, the antifreeze heaters 21 and 26 are energized at the same time and the second
This prevents the drain port body 18, the drain receiving body 22, and the defrosting water from freezing. Further, since the second drain port body 18 is attached in advance to the heat insulating molded body 12 that covers the damper device 15 and is covered with this heat insulating molded body 12, the specification switching chamber 3 is in the "freezing" state. Even when the specification switching chamber 3 is switched, there is almost no influence of cold air from the specification switching chamber 3, and the second drain port body 18 is prevented from freezing.

According to the above configuration, the drainage path of the defrosting water passes through the specification switching chamber 3, and the damper device 15
The second drain port body 18 is preliminarily attached to the heat insulating molded body 12 that covers the
By attaching the heat insulating molded body 12 to the back of the specification switching chamber 3, the drainage path can be connected at the same time, which eliminates the trouble of connecting the drain hose at the same time when installing the partition wall 9. Easy to assemble. Furthermore, since the connection between the drainage receiver 22 and the drainage hose 27 is performed separately from the assembly of the partition wall 9, the sealing of the connection part can be made more reliable than in the past, and therefore the defrosting water It is also possible to prevent water from leaking into the insulation material and reducing its insulation performance. Furthermore, with the above configuration, in the event that the drainage path becomes clogged with ice or debris, if the screw 28 is removed and the heat insulating molded body 12 is pulled out, the second
Since the drain port body 18 is removed and the first drain port body 11, the second drain port body 18, and the drain receiving body 22 can be inspected and cleaned from the outside, the removal of ice and debris can be performed in a conventional manner. It is extremely easy to do compared to the previous one.

[Effects of the Invention] As is clear from the above description, the present invention has a structure in which the first drain port body through which the defrosting water of the cooler flows downward passes through the partition wall between the freezing compartment and the specification switching compartment. a damper device that adjusts the amount of cold air supplied to the specification switching chamber and a defrosting water from the first drain port body to a heat insulating molded body that is removably fixed to the rear surface of the specification switching chamber. A second drain port body is installed in advance so as to be covered by the heat insulating molded body, and the opening end is connected to the drain hose embedded in the heat insulating wall and leading to the outside of the refrigerator. A drainage receiver opening on the back side is provided, and when the heat insulating molded body is fixed to the back side of the specification switching chamber, the second
Since the outflow end of the drain port body is inserted into and connected to the inside of the drain receiving body from the open end of the drain body, assembly is easy and a seal against defrosting water is ensured to prevent leakage into the insulation material. It is possible to reliably prevent this from occurring, and it also has an excellent practical effect in that it can be relatively easily removed when the drainage path is frozen or clogged with debris.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is an enlarged vertical sectional view of the main parts, FIG. 2 is an overall vertical sectional view, FIG. 3 is an exploded perspective view of the main parts, and FIG. 4 5 is a perspective view of the main part seen from the rear, and FIG. 5 is a cross-sectional view of the main part. In the drawing, 1 is the refrigerator body, 2 is the freezer compartment, 3 is the specification switching compartment, 6 is the cooler, 9 is the partition wall, and 11 is the first
12 is a heat insulating molded body, 15 is a damper device, 18 is a second drain body, 22 is a drain receiver, 2
5 is a heat insulating wall, 27 is a drainage hose, and 30 is a defrosting heater.

Claims (1)

[Claims] 1. In a refrigerator having a freezer compartment equipped with a fan-cooled cooler on the back and a specification switching chamber provided at the bottom of the freezer compartment, a a first drain port body provided in the cooling device to flow the defrosting water of the cooler downward; a heat insulating molded body removably fixed to the rear surface of the specification switching chamber; a damper device that is attached to the heat insulating molded body so as to be covered by the heat insulating molded body and adjusts the amount of cold air supplied to the specification switching chamber; a second drain port body that is attached and faces the first drain port body downwardly and receives defrosting water from the first drain port body; and a drain hose that is embedded in the heat insulating wall and leads to the outside of the refrigerator. The opening end is opened to the back side of the specification switching chamber covered by the heat insulating molded body, and the second
and a drain receiver into which the outlet end of the drain port body is inserted from the open end.