KR930003105Y1 - Arrangement for defrost water - Google Patents

Abstract

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Description

Defrost water drainage of the refrigerator

1 is a partial longitudinal sectional view showing an example of a defrost water drainage of a refrigerator generally used.

2 is a partial cutaway longitudinal sectional view showing another example of the defrosting drainage of the refrigerator which is generally used.

Figure 3 is a longitudinal cross-sectional view showing the configuration of the defrost water drainage device of the present invention refrigerator.

Figure 4 is a partially cut-away longitudinal sectional view showing the main configuration of the defrost water drainage of the refrigerator of the present invention.

5 is a cross-sectional view taken along the line A-A of FIG.

Figure 6 is a perspective view showing the main configuration of the drain hose by the defrost water drainage device of the present invention refrigerator.

* Explanation of symbols for main parts of the drawings

13: drain hose 13a: raw end

13b: drain hole 13c, 13d: upper, lower support

14: insulation plate

The present invention relates to a defrosting water drainage device of a refrigerator, and more particularly, to a defrosting water drainage device of a refrigerator, which prevents leakage of defrost water while preventing the temperature of a machine room from flowing back into a refrigerating and freezing room through a drain hose. It is about.

In the defrosting water drainage apparatus of a refrigerator generally used, as shown in FIG. 1, a heat insulation layer 24 of urethane foam is formed between the outer wound 22 and the inner wound 23 of the refrigerator main body 21. The main body 21 is partitioned into a freezing compartment 26 and a refrigerating compartment 27 by the partition 25, and an evaporator 28 is fixed to one side of the freezing compartment 26, and on one side of the partition 25. The defrost water passage 29 is formed in communication with the freezing chamber 26 and the refrigerating chamber 27, and drain hoses 30, 30 ′, 30 ″ are installed at one side of the refrigerating chamber 27 to drain the water. An end portion of the hose 30 ″ is configured to be positioned in the drip tray 31 provided at the lower side of the refrigerator body 21, and reference numeral 32 denotes a machine room.

The defrost water drainage device of the general refrigerator is a defrost water flowing from the evaporator 28 through the defrost water passage 29 through the drain hose (30) (30 ') (30 ") to the drip tray (31). Will fall.

However, in such a conventional case, the drain hoses 30, 30 'and 30 "are configured to be assembled into three, so assemblability of the product is reduced, and the drain hose 30 " Since it is fixed to one side wall of the installed machine room 32, it is introduced into the station through the drain hoses 30, 30 ', 30 "by the warmth of the machine room 32, so that the refrigerator compartment 27 and the freezer compartment 26 There was a problem that not only the food is damaged but also the power consumption is increased, and the defrost water flows down because the end of the drain hose 30 ″ is not positioned at the middle of the drip tray 31.

In some cases, there was a problem that a safety accident such as an electric shock occurs by the defrost water flowing down.

In addition, although the rubber cap 34 as shown in FIG. 2 is fixed to the end of the drain hose 30 "in order to prevent the inflow and leakage of warmth as described above, even in such a case, the assembly is not good. Not only that, but also a problem that can not effectively prevent the inflow of warmth and leakage of defrost water.

Therefore, the present invention has been devised to solve such a conventional problem, integrally formed with a drain hose for introducing the defrost water of the evaporator flowing into the defrost water passage, and embedded in the heat insulating layer of the refrigerating chamber, the drain hose A conical end portion having a drain hole having an inner diameter smaller than the inner diameter of the drain hose is formed at an end portion thereof, and on the outer circumferential surface thereof, a support portion fastened to a heat insulating plate is formed alternately so that the warmth of the machine room is introduced into the refrigerating chamber and the freezing chamber through the drain hose. It is configured to prevent the bar, described by the accompanying drawings as follows.

As shown in FIGS. 3 to 6, a heat insulation layer 4 of urethane foam is formed between the outer shell 2 and the inner shell 3 of the refrigerator main body 1, and the freezer compartment separated by the partition wall 5. (6) and the refrigerating chamber (7) is communicated to the defrost water passage (8) so that the defrost water of the evaporator (9) flows down to the drip tray (10), the machine chamber 11 in the lower rear portion of the refrigerator body (1) Is formed so that the compressor 12 is installed, and the freezing chamber 6 is integrally formed with a drain hose 13 for introducing the defrost water flowing from the defrost water passage 8 into the drip tray 10. Buried in the heat insulating layer 4, and formed at the end of the drain hose 13 and positioned at the middle of the drip tray 10, at the conical end portion 13a than the inner diameter d1 of the drain hose 13. Drain holes 13b having a small inner diameter d2 are formed, and upper and lower support portions 13c and 13d are alternately formed on the outer circumferential surface of the drain hose 13. The upper and lower support parts 13c and 13d are alternately formed so that the insulating plate 14 is inserted between the upper and lower support parts 13c and 13d, and reference numeral 14a denotes the insulating plate 14. The fastener is shown.

In the refrigerator defrost water drainage device of the present invention as shown in FIGS. 4 and 5, the lower support part 13d of the drain hose 13 having elasticity in the fastening hole 14a of the heat insulation plate 14 is first shown. ) And rotates the upper and lower support portions 13c and 13d of the drain hose 13 on the upper and lower surfaces of the heat insulation plate 14, and supports the upper end of the drain hose 13. Production is completed by forming a heat insulation layer 4 by foaming a urethane foam between the outer case 2 and the inner case 3 of the refrigerator body 1 in the state.

In the defrost water drainage device of the present invention as described above, the defrost water flowing down from the evaporator 9 is introduced into the drip tray 10 through the drain hose 13 integrally formed through the defrost passage 8.

At this time, when a large amount of defrost water flows down, a large amount is accumulated in the lower part of the drain hose 13, so a certain amount of defrost water is drained from the conical end portion 11a formed at the lower end of the drain hose 13 by gravity. If the warmth of the machine room 11 is not allowed to flow into the drain hole 13b of the drain hose 13, and a small amount of defrost water is accumulated in the conical end portion 11a of the drain hose 13, Since the drain hole 13b is blocked by the cohesive force of the defrost water, the warmth of the machine room 11 is not introduced.

As described above, the present invention prevents the warming of the machine room from the inflow into the refrigerating chamber and the freezing chamber through the drain hose, as well as saving the assembly time of the drain hose and reducing the production cost. By placing the drain hole of the drain hose in the middle portion, there is an effect of preventing the defrost water flowing to the outside as in the conventional case.

Claims (2)

In the defrosting water drainage device of the refrigerator, the drain hose 13 is embedded in the lower insulating layer 4 of the refrigerating chamber 7, and the defrost water of the refrigerator is characterized in that the end of the drain hose 13 has a conical shape. Drainage. The defrost water drainage device of claim 1, wherein support parts (13c) and (13d) are alternately formed under the outer circumferential surface of the drain hose (13).