JPH03170763A - Structure for mounting drain hose for absorption type refrigerator - Google Patents

Abstract

PURPOSE:To prevent an overflow from an evaporating dish of defrosting water by molding a drain hose in a recessed groove while forming an opening hole to one part of the drain hose, fast sticking the high-temperature pipe of the inclined section of an absorber into the recessed groove of the drain hose and conducting heat exchange. CONSTITUTION:A drain hose 28 is fast stuck to the recessed groove of the drain hose 28 molded in a recessed groove and the inclined hightemperature pipe 37 of an absorber 36 regarding the mounting of the drain hose 28, and heat is conducted. Consequently, defrosting water at the time of the defrosting of a cooling pipe 31 and a heat conducting plate 32 installed to the inner upper section of an inner box 23 collects on the inclination of the drain hose 28 once, and the recessed groove of the drain hose 28 molded in the recessed groove and the inclined high-temperature pipe 37 of. the absorber 36 are fast stuck and heat is conducted, thus evaporating defrosting water. Moisture generated at a time when defrosting water is evaporated in the drain hose 28 is discharged from the opening hole 38 of the drain hose 28. On the other hand, defrosting water overflowing from the tilted section of the drain hose 28 is introduced into an evaporating dish 30 closely attached to a high-temperature high pressure pipe 29 and evaporated. Accordingly, the defrosting water of a cooler can easily be evaporated in the drain hose.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an attachment structure for a defrost drain hose of an absorption type refrigerator.

Conventional technology In the conventional absorption refrigerator RE-800 manufactured by Electrolux released in April 1989, the defrost drain hose is installed in the drain hole of the dew pan that is integrally shaped with the inner box. The structure was such that the drain guide was tightly attached, passed through the inner box, insulation material, and outer box, and was connected to a drain hose outside the refrigerator, leading to the upper part of the evaporating dish.

Hereinafter, a conventional drain hose mounting structure as described above will be described with reference to the illustrated box.

FIG. 5 is a rear view of a conventional absorption type refrigerator, and FIG. 6 is a vertical sectional view of the absorption type refrigerator.

1 is an absorption type refrigerator body, and a heat insulating material 4 is filled between an outer box 2 and an inner box 3. At the rear upper part of the inner box 3, there is an integrally molded dew pan 5.

A drain guide 7 is closely attached to the drain hole 6 of the dew pan 6, passes through the inner box 3, insulation material 4, and outer box 2, and is connected to a drain hose 8 outside the refrigerator. The liquid is guided into an evaporating dish 10 that is in close contact with a high-temperature, high-pressure pipe 9 provided at the bottom. Reference numeral 11 denotes a cooling pipe which is attached to the upper part of the inner box 3 in close contact with the heat conduction plate 12. On the other hand, a thermostat 13 and a push button 14 are provided to naturally melt the frost adhering to the cooling pipe 11 and the heat conduction plate 12 during cooling, and a heater 16 for circulating the refrigerant is provided.

The defrosting drain hose constructed as above will be explained below.

When defrosting the cooling pipe 11 and heat conduction plate 12 installed in the upper rear of the inner box 3 in an absorption type refrigerator, the defrosting water flows into the high-temperature water that is in close contact with the evaporation plate 1o installed at the bottom of the outer box 2. It is naturally evaporated by the heat of the high pressure pipe 9.

Therefore, the cooling pipe 11 provided at the rear upper part of the inner box 3
When the heat conductive plate 12 is cooled, the frost that adheres thereon pushes the push button 14 of the thermostat 13 to turn it off, and at the same time, the power supply to the heater 16 for refrigerant circulation is turned off, stopping cooling and defrosting. During defrosting, the cooling pipe 11
The frost adhering to the heat conduction plate 12 naturally melts and falls into the dew pan 6 integrally formed at the upper part of the inner box 3. The defrosting water that has fallen into the dew pan 6 is drained through the drain port 6 of the dew pan 6.
An evaporation plate 1o is installed at the bottom of the outer box 2, passing through the drain guide 7 and connected to the drain hose 7 outside the refrigerator.
guided inward.

The defrosting water accumulated in the evaporating dish 10 is naturally evaporated by the heat of the high temperature and high pressure pipe 9. On the other hand, when the thermostat 13 reaches a certain temperature, the push button 14 is activated.
automatically returns to its original state, and at the same time, the heater 16 is turned on, and the cooling operation resumes.

Problems to be Solved by the Invention However, with the above structure, if the refrigerator door is opened and closed frequently, a large amount of frost will form on the cooling pipes and the heat conduction plate, and when defrosting the refrigerator, the drain port of the condensation pan will become clogged. The defrosting water that passed through the drain hose collected directly in the evaporation tray, which caused the problem of overflowing from the evaporation tray.

The present invention has been made in view of the above-mentioned problems, and provides a drain hose mounting structure that prevents defrosting water from overflowing from the evaporating dish.

Means for Solving the Problems In order to solve the above-mentioned problems, the drain hose mounting structure of the present invention is such that the drain hose is formed into a concave groove, a part of the drain hose is provided with an open hole, and the drain hose is formed into a concave groove. It exchanges heat with the high-temperature pipe on the slope of the absorber.

Function: With the above-described configuration, the defrosting water exchanges heat with the inclined high-temperature pipe of the absorber and the concave groove of the drain hose within the drain hose, so that the defrosting water easily evaporates within the drain hose, and The present invention provides a drain hose mounting structure for discharging moisture inside through an opening hole.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 4.

Reference numeral 21 denotes an absorption type refrigerator body, and a heat insulating material 24 is filled between an outer box 22 and an inner box 23. There is an integrally molded dew pan 26 in the upper part of the inner box 2♀. A drain guide 27 is attached to the drain hole 26 of the dew pan 26 in close contact with the inner drain hose 28, and an evaporation tray is attached to the high temperature and high pressure pipe 29 provided at the bottom of the outer box 22. It will lead you into the 30s. A cooling pipe 31 is provided at the upper rear part of the inner box 23 and is in contact with a heat conductive plate 32, which is attached to the upper rear part of the inner box 23.

On the other hand, in order to naturally melt the frost adhering to the cooling pipe 31 and the heat conduction plate 32 during cooling, a thermostat 33 and a push button 34 are provided, and a heater 36 for refrigerant circulation is provided. The drain hose 28 is formed into a concave groove and is connected to the absorber 3.
It has a structure in which it contacts the inclined high-temperature pipe 37 of No. 6 to conduct heat conduction, and an opening hole 38 is provided in a part of the drain hose.

The function of the drain hose mounting structure constructed as above will be explained below.

The drain hose 28 is installed between the groove of the drain hose 28 formed into a groove and the inclined high temperature pipe 37 of the absorber 36.
It comes into close contact with the material and conducts heat. For this reason, when defrosting the cooling pipe 31 and the heat conduction plate 32, which are provided in the upper part of the inner box 23, the defrosting water is collected at one end on the slope of the drain hose 28, and the drain hose 28 is formed into a concave groove. The concave groove and the inclined high-temperature pipe 37 of the absorber 36 are in close contact with each other to conduct heat, and the water of the defrost 9 can be evaporated. The moisture generated when the defrosting water evaporates in the drain hose 28 is discharged through the opening hole 38 of the drain hose 28. On the other hand, the defrost water overflowing from the sloped part of the drain hose 28 is guided into the evaporation tray 30 which is in close contact with the high temperature and high pressure pipe 29 and is evaporated.

Effects of the Invention As described above, the present invention makes it possible to easily evaporate the defrost water of the cooler in the drain hose by closely contacting the concave groove of the drain hose with the inclined high-temperature pipe of the absorber and conducting heat. Moreover, the defrosting water from the drain hose to the evaporating dish does not overflow from the evaporating dish, and the high-temperature pipe of the absorber is cooled by the defrosting water, which promotes absorption and reduces power consumption. We can provide a defrost drain hose for absorption type refrigerators.

[Brief explanation of the drawing]

Fig. 1 is a back case diagram of an absorption type refrigerator according to an embodiment of the present invention, Fig. 2 is a longitudinal sectional view of an absorption type refrigerator according to an embodiment of the present invention, and Fig. 3 is a diagram of a drain according to an embodiment of the present invention. FIG. 4 is a perspective view of a drain hose and absorber according to an embodiment of the present invention; FIG. 6 is a rear view of a conventional absorption refrigerator; FIG. FIG. 22...Outer box, 23...Inner box, 24.
...Insulation material, 26-...Dew pan, 26...
...Drain hole, 27...Drain guide, 28.
... Drain hose, 29 ... High temperature and high pressure pipe, 30 ... Evaporation dish, 31 ... Cooling pipe, 32 ... Heat conduction plate, 36...
Absorber, 37... Inclined high temperature pipe, 38...
...opening hole.

Claims (1)

[Claims] An inner box, an outer box, and a heat insulating material filled between the two boxes,
a cooling pipe provided at the upper rear part of the inner box; a heat conduction plate for transmitting the heat of the cooling pipe; a dew pan formed integrally with the inner box and provided below the cooling pipe; a drainage hole; It consists of a drain guide that penetrates between both boxes, a drain hose that is connected outside the refrigerator, and an evaporation dish that is in contact with a high-temperature and high-pressure pipe. A drain hose mounting structure for an absorption type refrigerator, characterized in that an inclined high temperature pipe of an absorber contacts a concave groove of the hose to exchange heat.