JPH07332839A - Evaporator for refrigerator - Google Patents

Abstract

PURPOSE:To absorb variations of mounting of an evaporator, and prevent defrosting water from being scattered and water vapor from entering a refrigerator. CONSTITUTION:An output part 14a of a drainage pipe 14 is constructed as a slope, and a protrusion 17 having a slope opposing to the outlet part 14a is provided on a vapor pan 15 provided just below the drainage pump 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator evaporator for forcibly evaporating defrost water.

[0002]

2. Description of the Related Art In conventional evaporators of this type,
For example, there is one as shown in Japanese Utility Model Publication No. 1-27032. FIG. 5 shows the evaporator of this conventional refrigerator.
Or, it demonstrates based on FIG. In FIG. 5 to FIG. 6, 1 is a refrigerator body, which is composed of an outer box 2 and an inner box 3,
A heat insulating material 4 is filled between the boxes 2 and 3. Reference numeral 5 denotes a drainage pipe for draining defrosting water from the dew receptacle 6 in the refrigerator to the outside, penetrating the heat insulating material 4 and having a tip protruding outside the refrigerator. 7 is an evaporating dish made of a synthetic resin, which is provided with a boss 8 in the hole of the pin collar 1a attached to the rear surface of the refrigerator 1.
It is press-fitted and attached to its own pressure. Reference numeral 9 denotes a compressor, which is located immediately below the evaporating dish 7 and uses the heat generated in the compressor 9 to evaporate the defrost water accumulated in the evaporating dish 7. When the evaporation tray 7 is attached, the projection 10 is provided at the bottom of the evaporation tray 7 at a position directly below the drain pipe 5. The protrusion 10 has a seat portion 1 whose bottom portion is formed higher than the surrounding bottom surface 13.
2 and a bell-shaped part 11 projecting above the seat 12, and the water flowing out from the outlet 5a of the drainage pipe 5 hits the bell-shaped part 11 in a positional relationship such that the tip end of the projection 10 and the drainage It is arranged close to the outlet 5a of the pipe 5.

In the above structure, the water dropped from the drainage pipe 5 first hits the projection 10, spreads from the projection 10 to the outer circumference, and drops to the bottom surface 13 of the evaporation tray 7. In other words, the falling water does not collect on the bell-shaped portion 11 and the seat 12 but collects on the bottom surface 13. Therefore, the water surface is not directly located directly below the drain pipe 5, and the defrost water falls from the drain pipe 5. The water that has accumulated does not splash over time.

Further, since the tip of the bell-shaped portion 11 exists close to the outlet portion 5a of the drainage pipe 5, the opening area of the drainage pipe 5 is narrowed, and steam generated by evaporation of defrost water is generated. Is less likely to enter the storage chamber through the outlet portion 5a of the drainage pipe 5.

[0005]

However, with the above-mentioned conventional structure, when the evaporation dish 7 is attached to the back surface of the refrigerator body 1 by the pin collar 1a, the bell-shaped portion 11 of the projection 10 and the tip of the drain pipe 5 are attached. Since they are close to each other, there is a drawback that they come into contact with each other due to variations. Further, as a solution to this, it is conceivable to separate the bell-shaped portion 11 of the projection 10 from the tip of the drainage pipe 5. However, when the bellows-shaped portion 11 of the protrusion 10 and the tip of the drainage pipe 5 are separated from each other, the water vapor generated by the evaporation of the defrost water is generated at the outlet of the drainage pipe 5. There was a problem that it penetrated into the refrigerator from 5a.

The present invention solves the conventional problems.
Aiming to provide an evaporator for a refrigerator in which variations in mounting can be absorbed without complicating the shape of the evaporating dish and water vapor generated by evaporating defrost water does not easily enter the refrigerator. There is.

[0007]

In order to achieve this object, in the evaporation apparatus of the present invention, the tip of the drainage pipe is formed in an inclined shape, and the projection has an oblique end opposite to the tip. Is provided in the evaporation dish.

Further, the valve body facing the inclined tip of the drainage pipe is provided on the evaporation dish.

[0009]

The evaporation device of the present invention can absorb variations in mounting without complicating the shape of the evaporation dish.

Further, by providing a shape opposite to the tip shape of the drainage pipe, it is possible to make it more difficult for water vapor generated from the defrost water to enter the inside of the refrigerator.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the evaporation apparatus according to the present invention will be described below with reference to FIGS. It should be noted that parts having the same configurations as those of the related art are denoted by the same reference numerals, detailed description thereof will be omitted, and only different parts will be described.

FIG. 1 is a sectional view of an evaporator of a refrigerator according to a first embodiment of the present invention, and FIG. 2 is a perspective view of an essential part of the evaporator of the refrigerator.

In FIGS. 1 and 2, reference numeral 14 denotes a drainage pipe for draining defrosting water from the dew receptacle 6 in the refrigerator to the outside, penetrating the heat insulating material 4 and projecting the tip to the outside. The outlet portion 14a of the drainage pipe 14 is cut obliquely with respect to the attachment direction of the evaporation dish to form an inclined surface. 15
Is an evaporating dish made of synthetic resin, which is detachably attached to the hole of the pin collar 1a attached to the rear surface of the refrigerator body 1 by the boss 16 under pressure. In the state where the evaporation dish 15 is attached, the evaporation dish 15 is provided with a protrusion 17 at a position directly below the drain pipe 14, and the protrusion 17 is provided.
Is provided on a seat portion 19 in which the bottom surface of the evaporation dish 15 is formed higher than the surrounding bottom surface 18. Tip 17a of protrusion 17
Is an inclined surface that is formed obliquely so as to face the outlet portion 14a of the drainage pipe 14, has a larger area than the inclined surface of the outlet portion 14a, and both inclined surfaces are close and parallel to each other. It is located in.

In the above structure, even when variations occur due to the attachment of the evaporation tray 15 or when the evaporation tray 15 is lowered due to the weight of defrost water, the inclination facing the inclined surface of the outlet portion 14a of the drainage pipe 14 is opposite. Tip 17 having a face
Since a is formed on the protrusion 17, the outlet portion 14a of the drainage pipe 14 and the protrusion 17 can be kept close to each other, and there is no scattering when the defrost water falls, so that water vapor does not enter the chamber. Can be less.

Next, a second embodiment of the evaporation apparatus according to the present invention will be described with reference to FIGS. 3 and 4. The same components as those in the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted.

FIG. 3 is a sectional view of an evaporator of a refrigerator according to a second embodiment of the present invention, and FIG. 4 is a perspective view of a main part of the evaporator of the refrigerator.

In FIGS. 3 and 4, reference numeral 20 denotes an evaporating dish made of synthetic resin, and like the first embodiment, the refrigerator body 1
Attached to the back of the. In the state where the evaporation tray 20 is attached, at a place directly below the drain pipe 14,
A valve plate 22 having a hinge portion 21 is attached to a bottom surface 23 around the bottom surface.
It is provided integrally with the seat portion 24 formed higher. The valve plate 22 is diagonally formed so as to face the inclined outlet portion 14a of the drainage pipe 14, has a larger area than the cut surface of the outlet portion 14a, and is arranged in parallel in close proximity.

In the above structure, when the evaporation tray 20 is attached unevenly or due to the weight of the defrosting water, the evaporation tray 2
Even when 0 is lowered, the valve plate 22 can always be kept close to the outlet portion 14a of the drainage pipe 14 by the hinge portion 21, there is no scattering when the defrost water falls, and the defrosting water does not flow into the steam chamber. Can be further reduced.

[0019]

As described above, according to the present invention,
By making the tip of the drainage pipe into an inclined shape and providing a protrusion with an inclined surface facing the tip to the evaporation dish, variations in mounting of the evaporation dish can be absorbed without complicating the shape of the evaporation dish. , It is possible to prevent the defrosting water from scattering when it falls, and to prevent the invasion of water vapor into the refrigerator.

Further, by providing the evaporating dish with a valve body facing the tip of the drainage pipe, the variation in mounting is further absorbed, the defrosting water is further prevented from scattering when it falls, and it enters the inside of the steam chamber. Can be prevented.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a first embodiment of an evaporator for a refrigerator according to the present invention.

FIG. 2 is a perspective view of a main part of the evaporation device.

FIG. 3 is a sectional view showing a second embodiment of the evaporator of the refrigerator according to the present invention.

FIG. 4 is a perspective view of a main part of the evaporation device.

FIG. 5 is a sectional view of a refrigerator equipped with a conventional evaporator.

FIG. 6 is a perspective view of a main part of the evaporation device.

[Explanation of symbols]

 1 Refrigerator body 14 Drain pipe 14a Outlet part 15,20 Evaporating dish 17 Protrusion 22 Valve plate

Claims (2)

[Claims] 1. A compressor provided at a lower part of a refrigerator main body, an evaporation dish provided at an upper part of the compressor, and a drainage pipe for guiding defrosting water from a cooler to the evaporation dish, the tip of the drainage pipe. An evaporating device for a refrigerator in which the portion has an inclined shape, and a protrusion having an oblique end facing the tip is provided on the evaporation dish. 2. The evaporation device for a refrigerator according to claim 1, wherein the evaporation disc is provided with a valve element facing the inclined tip portion of the drainage pipe.