JPS6298180A - Defrosting-water drainage structure of refrigerator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Field of application of the invention] The present invention relates to a defrost water drainage structure for a refrigerator.

[Prior art]

The conventional defrosting water receiving device for this type of refrigerator will be explained with reference to FIGS. 1 and 2. ■ is the refrigerator body.

It is composed of an outer box 2 and an inner box 3, and the spaces between the rain boxes 2 and 3 are filled with a foam heat insulating material 4. 5 is a freezing room, and 6 is a refrigerating room, which are divided into upper and lower sections with a partition wall 7 interposed therebetween.

Reference numeral 8 denotes a freezer compartment door, which closes the front opening of the freezer compartment 5. Reference numeral 9 denotes a refrigerating compartment door, which closes the openings on both sides of the refrigerating compartment 6. Reference numeral 10 denotes an evaporator, which is installed in the front part of the freezer compartment 5. Reference numeral 11 denotes a defrosting water receiver, which is located directly below the evaporator 10. 12 is a gutter connected to the defrosting water receiver 11. 13 is the drain hose, gutter 1
It communicates with 2. The tip of this drain hose is led to a drainage receiver, which will be described later. 14 is a machine room, inside which is a compressor 15. Drainage condenser 16. It has a drainage receiver 17.

The frost adhering to the evaporator 10 is thawed by a heater or the like, and the thawed defrosting water drips into the defrosting water receiver 11 and flows into the gutter 1.
2. It passes through the drain hose 13 and drips into the drain receiver 17 above the drain condenser 16. The dripped defrost water is evaporated by the heat of the drainage condenser 16.

However, the refrigerators with the above configuration had the following drawbacks: In recent years, due to power saving, the input to the compressor has tended to become smaller, and as a result, the temperature of the gas discharged from the compressor has decreased. As the gas temperature in the drain condenser decreases,
A problem has arisen in that the evaporation capacity of defrost water in the drainage basin is reduced. One possible solution to this problem would be to make the drainage condenser and drainage receiver larger, but this was almost impossible in a machine room with a fixed volume.

[Purpose of the invention]

The present invention provides a defrosting device that can reliably evaporate defrosting water without increasing the size of a drainage condenser or drainage receiver.

[Summary of the invention] The present invention introduces defrosting water from an evaporator inside the refrigerator box to a gutter from a receiving part, and guides it from the gutter to the outside of the refrigerator via a drain hose, and has a compressor, a drain condenser, and a drain receiver. In a refrigerator defrosting water drainage structure in which the water is guided into a drainage receptacle inside a machine room, a first drainage receptacle having a storage part and a drain port is installed above the compressor in the machine room, and a first drainage receptacle communicating with the drain port is installed above the compressor in the machine room. 2. A drainage receiver is installed above the drainage condenser.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 3 and 4. (Incidentally, the same number as the conventional example indicates the same thing.)
Reference numeral 18 denotes a first drainage receiver installed above the compressor 15. The tip of the drain hose 13 is located within this drainage receiver 18. 18a is an outer wall of the drainage receiver 18. 1
Reference numeral 8b is a weir for storing defrosting water provided in the drainage receiver 18, and is lower than the outer wall 18a. Reference numeral 18c is a drain port, and a communication hose 19 is attached to the tip of the drain port, the tip of which is led into a second drain receiver 20 placed on the drain condenser 16.

〔Effect of the invention〕

In the present invention, the defrosting water from the drain hose drips into the first drainage receiver installed on the compressor.6 The defrosting water that has been dropped drops into the weir inside the drainage receiver in order to maintain the evaporation capacity according to the heat generation of the compressor. The water is always stored at a constant level and evaporated. Also,
Defrost water from the overflow that has passed over the weir inside the first drainage receiver is discharged from the drain outlet.

It passes through the communication hose and drips into the second drainage receiver. At this time,
Since the defrosting water dripped into the second drainage receptacle has already been heated in the first drainage receptacle, the evaporation speed at the second drainage port is accelerated and the evaporation can be completed in an extremely short time. . Furthermore, the present invention allows defrosting water to be treated with an extremely simple structure without increasing the size of the drainage condenser or evaporating dish. In addition, even if the compressor input is reduced, there is no effect on the evaporation capacity of the defrosting water.
This can also greatly contribute to power saving.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a conventional refrigerator, FIG. 2 is a side view of FIG. 1 showing a conventional defrosting water drainage device, and FIG. 3 is a sectional view of essential parts showing a defrosting water drainage device of the present invention. FIG. 4 is a perspective view showing the structure of the first drainage receiver. 1... Refrigerator body, 2... Outer box, 3... Inner box, 4
・Foam insulation material, 5... Freezer room, 6... Refrigerator room, 7
...Inner partition wall, 8...Freezer compartment door, 9...Refrigerator compartment door, 1o...Evaporator, 11...Defrost water receiver, 12...
・Gutter, 13... Drain hose, 14... Machine room, 1
5... Compressor, 16... Drainage condenser, 17.
...Drainage receiver, 18...First drainage receiver, 19...Communication hose, 20...Second drainage receiver. ~ Elephant 1 figure and a half, 3 no 岑 2 figure and a half 4 causes

Claims (1)

[Claims] The defrosting water from the evaporator (10) inside the refrigerator box is guided from the receiving part (11) to the gutter (12), and from the gutter (12) is led to the outside of the refrigerator via the drain hose (13). 15),
In a defrosting water drainage structure for a refrigerator, the defrosting water is guided into a drainage receiver (17) inside a machine room (14) having a drainage condenser (16) and a drainage receiver (17).
4) There is a storage part and a drain port (18c) on the top of the compressor (15) inside.
) with a drain outlet (18) installed.
8c) A defrosting water drainage structure for a refrigerator, characterized in that a second drainage receiver (20) communicating with the drain condenser (16) is installed above the drainage condenser (16).