JPH08247627A - Evaporator - Google Patents

Abstract

PURPOSE: To facilitate cleaning work of an evaporation pan by a method wherein the evaporation pan is provided with a refrigerant path formed between two or more plates of aluminum, etc., and the inlet open end of the refrigerant path of the evaporation pan is connected to the delivery pipe of a compressor. CONSTITUTION: A release agent for preventing press-bonding is applied between two plates of aluminum, etc. The plates, after rolled, are applied with a hydraulic pressure to form a refrigerant path 11 and bent into a box-shaped evaporation pan 10. An inlet pipe 13 of the evaporation pan 10 is welded to a delivery pipe 14 of a compressor 4 to connect an inlet open end 12 to the delivery pipe 14. Thereby, the cleaning work of the evaporation pan 10 can be carried out easily and defrosted water can be evaporated completely. In addition, the hemisphere-shaped evaporation pan 10 facilitates the cleaning work of the evaporation pan 10 and a risk of water leakage can be avoided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an evaporator for forcibly evaporating defrost water or drain water from an evaporator such as a refrigerator.

[0002]

2. Description of the Related Art A conventional evaporator of this type is disclosed in Japanese Utility Model Publication No. 58-54617.

This conventional example will be described below with reference to FIGS. 9 and 10. In the figure, reference numeral 1 denotes a refrigerator main body having a door 2 that can be opened and closed, and defines a machine room 3 in which electrical parts and the like are arranged at the bottom. In the machine room 3, a compressor 4, a high-pressure side pipe 5, an evaporation tray 6 that accommodates the pipe 5 and is detachably provided, and a guide support that guides the evaporation tray 6 toward the high-pressure side pipe 5. It is composed of a tool 7.

The guide support 7 is provided with a holder 8 to which a fixture 9 that holds both ends of the high pressure side pipe 5 bent in a meandering shape is fixed.

With the above structure, the defrosted water stored in the evaporation tray 6 evaporates by exchanging heat with the high pressure side pipe 5 through which the high temperature and high pressure refrigerant gas sent from the compressor 4 flows.

[0006]

However, in the above-mentioned conventional structure, since the high-pressure side pipe 5 is housed in the evaporation tray 6, the guide support 7 for inserting / removing in order to clean the evaporation tray 6. However, there was a drawback that it was necessary and costly.

Further, since the high pressure side pipe 5 is arranged apart from the evaporation dish 6 by the fixture 9 so as not to transmit the vibration of the compressor 4 to the evaporation dish 6, the lowermost end of the high pressure side pipe 5, that is, the lowermost stage. The remaining defrost water almost does not evaporate when it evaporates to the high pressure side pipe, and if left for a long time, it corrodes and is unsanitary, and the amount of defrost water that remains in preparation for the next defrost Therefore, the volume of the evaporating dish 6 must be increased, resulting in high cost and large volume of the machine room.

SUMMARY OF THE INVENTION The present invention solves the conventional problems, and an object of the present invention is to provide an evaporator which facilitates cleaning of an evaporation dish and can completely evaporate defrost water without leaving any residue.

[0009]

In order to achieve this object, the evaporator of the present invention forms a refrigerant passage between two plates of aluminum or the like which are bent and formed into a box shape, and the refrigerant passage of this refrigerant passage is formed. The inlet-side open end is composed of an evaporation dish connected to the discharge-side pipe of the compressor.

Further, the evaporation dish is formed in a hemispherical shape. Further, the inlet side opening end of the refrigerant passage is connected to the discharge side pipe of the compressor, the inlet side pipe is formed into a circular shape, and the outlet side opening end of the refrigerant passage is connected to the outlet formed into a circular shape. It is composed of a side pipe.

[0011]

With the above-described structure, the evaporator of the present invention allows the high-temperature and high-pressure gas refrigerant sent from the compressor to flow through the five-side refrigerant passages including the bottom surface of the evaporating dish and is stored in the evaporating dish. Since the water is forcibly evaporated, it is not necessary to store the high-pressure side pipe, the evaporation tray can be easily cleaned, and the refrigerant passage is formed on the bottom surface of the evaporation tray. Can be completely evaporated without.

Further, since the evaporating dish is formed into a hemispherical shape by drawing, the evaporating dish can be easily cleaned and there is no fear of water leakage.

Further, by forming the pipes connected to the inlet end and the outlet end of the refrigerant passage in a circular shape, there is no fear of breaking the pipe even when the evaporation tray is moved or rotated, and the evaporation tray is placed outside during cleaning. The evaporation tray can be easily cleaned by moving and rotating.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of an evaporator according to the present invention will be described below with reference to the drawings. It should be noted that the same components as those of the related art are designated by the same reference numerals and detailed description thereof will be omitted.

FIG. 1 is a front view of an evaporation device according to a first embodiment of the present invention. FIG. 2 is a perspective view of the evaporation dish of the same embodiment. FIG. 3 is a development view of the evaporation dish of the same embodiment.
FIG. 4 is a sectional view taken along line AA of FIG.

1, FIG. 2, FIG. 3, and FIG. 4, reference numeral 10 denotes a refrigerant passage formed by applying a pressure-preventing release material between two plates of aluminum or the like and rolling and then applying pressure with a fluid. 11 is an evaporating dish formed by bending and forming a box shape. Reference numeral 12 denotes an inlet side opening end of the refrigerant passage 11. 1
Reference numeral 3 denotes an inlet side pipe, which is welded to the inlet side open end 12 and the discharge side pipe 14 of the compressor 4. 15 is an outlet end on the outlet side. 16 is an outlet side pipe, and the outlet side open end 15
Welded to. 17 is a mating portion of the evaporating dish 10 and is sealed with an adhesive 18.

With the above configuration, the high-temperature and high-pressure gas refrigerant sent from the compressor 4 flows through the five-side refrigerant passages 11 including the bottom surface of the evaporation tray 10, forcing the defrost water stored in the evaporation tray 4. The high-pressure side pipe to the evaporation tray 10
Since it is not necessary to store the defrosting water in the bottom, the evaporation tray can be easily cleaned, and the defrosting water is completely evaporated by the high-temperature and high-pressure refrigerant gas flowing through the refrigerant passage 11 on the bottom surface. Moreover, it is not necessary to increase the volume of the evaporation tray 10 by the amount of defrosting water remaining in preparation for the next defrosting.

Next, a second embodiment of the evaporator according to the present invention will be described with reference to the drawings. The first
The same configurations as those of the embodiment are given the same reference numerals and detailed description thereof will be omitted.

FIG. 5 is a front view of an evaporation apparatus according to the second embodiment of the present invention. FIG. 6 is a perspective view of the evaporation dish of the same embodiment.

5 and 6, FIG. 19 shows an evaporating dish,
It is formed into a hemisphere by drawing.

With the above construction, since there is no mating portion, there is no fear of water leakage, and the hemispherical shape facilitates cleaning of the evaporation dish.

Next, a third embodiment of the evaporation apparatus according to the present invention will be described with reference to the drawings. The first
7 is a front view of an evaporation apparatus according to a third embodiment of the present invention. FIG. 8 is a sectional view taken along line BB in FIG.

In FIGS. 7 and 8, reference numeral 20 denotes a circular inlet side pipe, which is welded to the inlet side open end 12 of the evaporation tray 10 and the discharge side pipe 14 of the compressor 4. Reference numeral 21 is a circular outlet pipe, which is welded to the outlet opening end 15 of the evaporation dish 10.

With the above construction, since the inlet side pipe 20 and the outlet side pipe 21 have a margin in the front-back direction,
The evaporation dish 10 can be moved to the outside and rotated to direct the opening to the outside, which facilitates cleaning of the evaporation dish.

[0025]

As described above, according to the present invention, the inlet side opening end of the refrigerant passage formed between two sheets of aluminum or the like bent and formed into a box shape is connected to the discharge side pipe of the compressor. Since the evaporation device is composed of the plate, the evaporation plate can be easily cleaned, and defrost water can be completely evaporated without being left.

Further, by providing the hemispherical shaped evaporation dish, the evaporation dish can be easily cleaned and there is no fear of water leakage.

Further, the inlet side opening end of the refrigerant passage is connected to the discharge side pipe to form a circular shaped inlet side pipe, and the outlet side open end of the refrigerant passage is connected to form a circular shaped outlet. By providing the side pipe, the evaporation dish can be easily cleaned.

[Brief description of drawings]

FIG. 1 is a front view of a first embodiment of an evaporator according to the present invention.

FIG. 2 is a perspective view of the evaporation dish of the same embodiment.

FIG. 3 is a development view of the evaporation dish of the same embodiment.

FIG. 4 is a sectional view taken along line AA of FIG.

FIG. 5 is a front view of a second embodiment of the evaporation device according to the present invention.

FIG. 6 is a perspective view of the evaporation dish of the same embodiment.

FIG. 7 is a front view of a third embodiment of the evaporation device according to the present invention.

FIG. 8 is a sectional view taken along line BB of FIG.

FIG. 9 is a sectional view of a conventional evaporator.

FIG. 10 is an exploded perspective view of the evaporation device of the conventional example.

[Explanation of symbols]

 4 Compressor 10 Evaporating Dish 11 Refrigerant Passage 12 Inlet-side Open End 14 Discharge-side Pipe 15 Outlet-side Open End 19 Evaporating Dish 20 Inlet-side Pipe 21 Outlet-side Pipe

Claims (4)

[Claims] 1. An evaporation tray having a refrigerant passage formed between two plates of aluminum or the like is provided, and the inlet side opening end of the refrigerant passage of the evaporation tray is connected to a discharge side pipe of a compressor. Characteristic evaporation device. 2. The evaporation device according to claim 1, further comprising an evaporation dish formed by bending a flat plate into a box shape. 3. The evaporation device according to claim 1, further comprising an evaporation dish formed in a hemispherical shape. 4. An inlet side pipe connecting an inlet side opening end of the refrigerant passage and a discharge side pipe of the compressor, and an outlet side pipe connected to an outlet side opening end of the refrigerant passage, the inlet side pipe and the outlet side. The evaporation device according to claim 1, wherein the pipe is formed into a circular shape.