KR20000005578U - Defrost water drainage freezing device - Google Patents

Abstract

The present invention relates to a defrosting water drainage freezing device, the drainage of the defrosting water receiving drain draining the defrosting water at the time of defrosting is blocked by residual ice or lumps to prevent the defrosting water overflows into the high In addition, a separate heater heating element was installed around the drain or the drain hose. Since the heater heating element is in direct contact with the defrost water, the risk of electric shock due to disconnection or short circuit is high, and the installation is complicated and power consumption is increased. In order to solve this problem, a heat conductor capable of inducing defrost heat to the inside of the drain is provided, but one end of the defrost heater is securely wound around the outer circumference of the glass tube in which the defrost heater is built, and the other end is extended to the inside of the drain deeply. It is installed to extend downward so that the remaining ice around the drain hole is completely removed without a separate heater heating element. It devised by ever going to induce and facilitate drainage prevented the accident by being cut or shorted.

Description

Defrost water drainage freezing device

The present invention relates to an apparatus for preventing defrosting of a defrost water drainage port of a refrigerator, and more particularly, when a defrost water generated when defrosting the frost formed on an evaporator of a refrigerator is drained to a machine room along a drainage hole formed on the bottom surface of a defrosting receiver. The present invention relates to a defrost water drainage freezing prevention device that can overcome the drainage blockage by preventing freezing of residual water around.

In general, the refrigerator is provided with an evaporator in a cooler chamber, which is a separate space provided at the rear side of the freezer compartment, to generate cold air in the evaporator according to the operation of the compressor installed in the machine room, and the generated cold air is forcedly blown into the freezer compartment and the refrigerating compartment by a blower fan. As a series of cold air flows back and forth, it is a device that freezes and refrigerates each storehouse and keeps food stored in the storehouse for a long time.

During this series of cold air flows, the water vapor around the evaporator saturates in the air due to the temperature difference between the cryogenic cold distributed around the evaporator and the temperature rise due to heat exchange with the enclosures stored therein. At the dew point, the water vapor no longer saturates in the air surrounding the evaporator and condenses as dew on the surface of the evaporator, which turns into frost as it is frozen by the low temperature of the evaporator surface.

Therefore, when the refrigerator reaches a certain condition during operation, the refrigerator temporarily terminates all operations and operates the defrost heater installed under the evaporator to perform defrosting to remove frost formed on the surface of the evaporator.

Defrosting water is generated during the defrosting process to produce defrost water. A defrosting receiver is installed directly below the evaporator to collect and drain the defrost water.

Figure 1a is a discharge device for the easy discharge of the above-described defrosting water when the frost formed on the evaporator 10 is turned into defrosting water while flowing down sometimes frost mass through the defrosting water receiver 20 drain 24 In order to improve the difficulty of draining the defrost water by blocking the drain hole 24 because it is frozen in the state flowing into or at the entrance thereof is registered as a practical publication No. 90-700.

Defrost water discharge device as shown in the drawing to the defrosting water receiving trough 20 through the drain port 24 installed directly below the evaporator 10, the defrost water discharged from the defrost water receiving receiver 20 to the inner wound (50). The guide 30, which is fixed to the defrosting receiver 20, is formed in a separate "a" shape and communicates with the drain opening 24 of the defrosting receiver 20 in the longitudinal direction inside the heat insulation wall 40. It is composed of an induction pipe 60 coupled to a long drainage hose 70, which is installed to be exposed to one side of the upper part of the refrigerating chamber, thereby being influenced by the air distribution in the refrigerating chamber that is maintained at a considerably higher temperature than the lower side of the cooling chamber. Even when frost is introduced, it melts easily, leading to easy drainage.

In addition, Figure 1b is to prevent the phenomenon that the residual water freezes to block the drainage, the heater 80 is built in the outer peripheral portion of the drain 24 and the induction pipe 60 at the same time the defrost heater during heating operation By connecting in parallel with the defrost heater as possible so that the defrost heater is delivered to the drain hole 24 deep so that no residual ice is generated to facilitate the drainage of the defrost water.

However, in the case of the defrosting water discharge device as shown in FIG. 1A, when the lumped frost closes the drain or induction pipe, the blockage of the drain can be overcome by melting the lump due to the high temperature of the refrigerating chamber. If the refrigerator continues to operate in the cooling mode because it is not completely removable, there is a disadvantage in that such residual ice grows and cannot completely overcome the problem of closing a part of the drain or the induction pipe. It is possible to completely overcome the clogging of the drain by easily removing lumpy frost or residual ice, but there is a high possibility that the heater that generates heat is in direct contact with the defrost water. ), There is a risk that the installation and assembly is not easy.

In addition, when the clogging of the drain hole occurs as described above, the defrosting water drained out overflows the defrosting water receiver, thereby producing a problem of causing a defect of falling into the furnace, and since a separate heater heating element is installed in addition to the defrosting heater, it consumes energy. There was also a growing problem.

The present invention has been made in view of the above-mentioned problems of the related art, and indirectly induces the heat generated from the defrost heater to the inside of the drainage port and the induction pipe of the defrost receiver by the heat conductor, and surrounds the drainage port and the inlet pipe entrance wall. The purpose of the present invention is to provide a defrost water drainage freezing device that can remove the residual water or residual ice and frost lumps neatly without a separate heater heating element.

This object of the present invention is a defrost heater assembly comprising an upper cover, a lower cover having a plurality of vent holes, a glass tube containing a defrost heater, and an insulator for supporting and insulating both ends of the glass tube; A defrost receiver receiving and supporting the defrost heater assembly and having a drain hole at a central portion thereof; In the defrost water drainage freezing device consisting of a drain hose disposed in the longitudinal direction inside the rear insulation wall of the refrigerating compartment to guide discharge of the defrost water to the machine room and an induction pipe installed to expose the upper side of the refrigerating compartment, One end is wound around the outer circumference of the glass tube in which the defrost heater is built, and the other end is achieved by installing a thermal conductor to extend downward deeply into the drain hole.

Figure 1a and 1b is a side cross-sectional view of the defrost water drainage portion showing the installation state of the defrost water drainage freezing device according to the prior art

Figure 2 is a perspective view of the defrost water drainage portion showing the installation state of the defrost water drainage freezing device according to the present invention,

Figure 3 is a side cross-sectional view of the refrigerator installed defrost water drainage freezing device according to the present invention.

Explanation of symbols on the main parts of the drawings

100: defrosting receiver, 120: drain hole,

140: induction pipe, 200: lower cover,

210: ventilation hole, 300: upper cover,

400: defrost heater, 410: glass tube,

500: thermal conductor, 550: locking portion.

Hereinafter, on the basis of the accompanying drawings a preferred embodiment according to the present invention will be described in more detail.

Figure 2 is a perspective view of the defrost water drainage portion showing the installation state of the defrost water drainage freezing device according to the present invention.

As shown in the figure, the defrosting water drainage freezing device of the present invention end after winding a portion of the outer circumference of the glass tube 410 containing the defrost heater 400 is installed on both sides of the defrost receiving 100 ) Is provided with a thermal conductor 500 is extended to extend downwardly to the inside.

One end of the thermal conductor 500 is curved to form a hook portion 550.

The locking portion 550 is formed to correspond to the diameter of the glass tube 410 incorporating the defrost heater 400, but is formed to be elastically fixed to the glass tube 410.

Then, the other end is extended to be installed so as to be located deeply to the drain hole (120).

In addition, the thermal conductor 500 is preferably to be spire-shaped to the end so that the movement of hot electrons can occur smoothly.

In addition, the thermal conductor 500 is preferably formed of a material such as aluminum having excellent thermal conductivity and strong corrosion resistance.

The thermal conductor 500 is any one of the ventilation holes 210 formed in the lower cover 200 is coupled to the upper cover 300 installed on the defrost heater 400 to protect the defrost heater 400 from the defrost water It is installed through one.

The lower cover 200 is a defrost heater assembly when the defrost heater assembly made of the defrost heater 400, the glass tube 410 and the insulator 420 to insulate the defrost heater 400 from both sides of the lower cover 200 is damaged defrost receiving ( An electric shock accident that may occur when the defrost heater 400, which is supplied with electricity by the lead wire 430, may come into contact with the defrost water collected in the defrosting receiver 100. To prevent.

In addition, the vent 210 serves to prevent the freezing of the drain hole 120 so that a part of the defrost heater generated during operation of the defrost heater 400 is well transmitted to the lower side.

With respect to the action of the defrost water drainage freezing device of the present invention made in this configuration will be described with reference to FIG.

As shown in FIG. 3, an evaporator 10 is installed in the cooler chamber 90 behind the freezer compartment F and a defrosting receiver having a drain hole 120 to communicate with an upper rear side of the refrigerating compartment R directly below the evaporator 10. 100 is installed.

The drain pipe 120 is connected to the drain hose 150 is connected to the machine room along the longitudinal direction of the insulated pipe 140 of the "b" shape to form the refrigeration chamber (R) the back wall.

The defrost heater assembly 100 is installed on the defrost receiver 100 and fixed to wind the outer circumference of the glass tube 410 incorporating the defrost heater 400 of the defrost heater assembly. 120, the thermal conductor 500 is installed so as to be located deep inside.

Therefore, when the refrigerator enters the defrost mode at the time of defrosting, the defrost heater generated from the defrost heater 400 is transferred to the evaporator 10 side to melt frost formed on the surface of the evaporator 10.

At this time, some heat generated from the defrost heater 400 is transmitted to the inside of the drain 120 and the induction pipe 140 along the heat conductor 500 to melt the remaining ice around the indirect heat.

In addition, since the induction pipe 140 is exposed in the refrigerator compartment R, the indirect heat exchange action by the heat conductor 500 is promoted.

In addition, some of the heat generated from the defrost heater 400 is passed through the vent hole (210 of FIG. 2) formed in the lower cover (300 of FIG. The elimination of lumps is doubled.

In this way, since the remaining ice and frost masses around the drain hole 120 and the induction pipe 140 are melted in advance, the defrost water flowing while the frost melts is drained into the machine room through the drain hole 120 completely opened.

As described above, the present invention is able to induce the heat generated from the defrost heater up to the inside of the drain drain drain water is not necessary to install the heater heating element for preventing the freezing drain drain as in the prior art, easy installation and disconnection or electric shock There is no risk of an accident and it provides the effect of reducing power consumption.

In addition, it is possible to completely remove the remaining ice around the drain hole to provide an effect of completely blocking the defect that the drain is blocked and the defrost water overflows into the furnace.

Claims (1)

Glass cover 410, the upper cover 300, the lower cover 200 having a plurality of vent holes 210, a defrost heater 400, an insulator 420 supporting and insulating both ends of the glass tube 410 Defrost heater assembly consisting of; A defrost receiver 100 having the defrost heater assembly mounted thereon and having a drain hole 120 at a central portion thereof; An induction pipe 140 connecting the drain hose 150 and the drain port 120 longitudinally disposed in the rear side insulation wall 40 of the refrigerating compartment to guide discharge of the defrost water to the machine room and being exposed to the rear side of the refrigerating compartment. In the defrost water drainage freezing device composed of, The defrost heater 400 is wound around the outer periphery of the glass tube 410 embedded therein and is formed to extend through the vent hole 210 to the lower side to extend the heat conductor 500 installed deep inside the drain hole 120 Defrost water drainage freezing device characterized in that provided.