KR100389396B1 - The sealing structure for refrigerators - Google Patents

Abstract

The present invention relates to a refrigerator, and more particularly, to an inner case sealing structure of a refrigerator capable of preventing a short circuit and a fire of the refrigerator.

An inner case sealing structure according to the present invention includes: an inner case forming a storage space of a refrigerator and having a stage partitioning the storage space; A barrier inserted into an inner side of the inner case; A defrost water receiver installed at the rear side of the barrier and configured to discharge the defrost water generated in the heat exchanger to the outside; The inner case of the inner case end installed with the barrier and the defrosting receiver is sealed to prevent penetration of the foaming liquid, and is composed of a sealing tape having a plurality of drainage holes formed on the surface thereof.

According to the above-described configuration, since water leaked between the barrier and the defrosting receiver is discharged through the drain hole formed in the sealing tape, it is possible to prevent water from penetrating the electrical equipment of the refrigerator, thereby preventing a short circuit and a fire. There is an advantage.

Description

Inner case sealing structure of refrigerator

The present invention relates to a refrigerator, and more particularly, to a structure for sealing the barrier and the defrost receiving installation portion of the inner case forming the inner wall of the refrigerator.

The refrigerator is a product designed to keep the inside at a low temperature below a predetermined temperature in order to keep food fresh. FIG. 1 is a partial cross-sectional view of the refrigerator. As shown, the storage space of the refrigerator is partitioned into an upper freezing compartment (F) and a lower refrigerating compartment (R), and is configured to be opened and closed by respective doors 20a and 20b. The storage space is partitioned by forming a stage having a predetermined thickness inside the inner case I forming the inner wall of the refrigerator. That is, the upper top side of the inner case I is the bottom of the freezing chamber F, and the lower side is the ceiling of the refrigerating chamber R. The barrier 1 is inserted into the inner stage of the inner case I as described above.

The barrier 1 provides a strength to place food and the like on the bottom of the freezer compartment F corresponding to the upper side thereof, and forms a heat insulation layer so that heat transfer does not occur between the freezer compartment F and the refrigerator compartment R. In addition, it forms a circulation path of the cold air generated by the evaporator 2 installed at the rear side of the freezing chamber (F).

That is, the barrier 1 is provided with a freezer compartment return duct 1a and a refrigerator compartment return duct 1b in which cold air circulated in the freezer compartment F and the refrigerating compartment R is returned to the evaporator 2 side. Although not shown, a refrigerating chamber supply duct for supplying some of the cold air generated in the evaporator 2 to the refrigerating chamber R side is formed.

Therefore, in consideration of the function of the barrier 1 as described above, the styrofoam barrier 1 having a predetermined shape in which the freezer compartment return duct 1a, the refrigerator compartment return duct 1b, and the refrigerating compartment supply duct is formed is usually provided in the inner case I. By inserting into the inner side of the step), it is possible to provide the required strength and heat insulating layer, and to provide the circulation path of the cold air.

On the other hand, a defrosting receiver 3 for collecting the defrost water generated by the evaporator 2 is provided at the rear side of the barrier 1. That is, the air re-introduced to the evaporator 2 side is relatively high temperature, and contains water in the course of circulation, and this water condenses on the surface of the low temperature evaporator 2 to form frost. And this defrost is periodically defrosted by the heat of the defrost heater (4) installed on the lower side of the evaporator (2), the defrost receiver (3) to collect the defrost water formed by melting the frost at this time It is provided in the back side of the said barrier 1 corresponding to directly under (2).

The defrosting receiver 3 is connected to the freezer compartment return duct 1a and the refrigerating compartment return duct 1b of the barrier 1 so that the returning cold air can flow into the evaporator 2 side. The bottom surface of the defrosting receiver 3 is inclined toward one side, and a drainage channel 3a extending downward along the rear surface of the inner case I is formed at the bottom end of the inclined bottom surface. It is connected with the drain pipe 5 for discharging defrost water to the outside.

On the other hand, as described above, the foam foam 6 for thermal insulation is formed between the inner case I in which the barrier 1 and the defrosting receiver 3 are installed and the outer case O forming the external shape of the refrigerator. The foam foam (6) is formed by injecting a foam stock solution between the inner case (I) and the outer case (O), and then the foam stock solution is cured after foaming, and in the process of filling the foam stock solution As shown in FIG. 2, the barrier 1 and the defrosting receiver 3 are installed such that the foaming stock solution does not penetrate between the inner case I and the barrier 1 and the defrosting receiver 3. The end portion of the case I is sealed in such a manner as to surround its outer circumference with a vinyl tape 7 or the like.

The reason for the above is that when the foaming stock is filled inside the inner case I, the barrier 1 of the styrofoam material is crushed by the pressure generated during foaming of the foaming stock, or the barrier 1 ) And the defrosting receiver (3) is to prevent the phenomenon that the departure from the position.

However, the conventional inner case sealing method as described above has the following disadvantages.

As described above, the inner side of the inner case (I) is sealed with vinyl tape (7) or the like to prevent the barrier (1) and the defrosting receiver (3) from being deformed by the foaming pressure of the foaming stock solution. Although the barrier 1 and the defrosting receiver 3 are actually pushed by the foaming pressure, the freezer compartment return duct 1a and the refrigerator compartment return duct 1b and the defrost water of the barrier 1 are generated. The connection part of the receiving part 3 is spaced apart.

On the other hand, in the process of using a refrigerator, water accumulated in the bottom of the freezer compartment (F) is introduced into the defrosting water receiver (3) through the freezer compartment return path (1a) and discharged to the outside, or sometimes the defrosting water receiver (3) If the drain passage 3a of the c) is temporarily blocked by ice or the like, defrost water may flow into the freezer compartment return duct 1a or the refrigerator compartment return duct 1b of the barrier 1.

However, when the connection portion of the barrier 1 and the defrosting receiver 3 is spaced as described above, water passing through the connection portion of the barrier 1 and the defrosting receiver 3 is leaked through a spaced gap. It will flow down. However, since the connection portion between the barrier 1 and the defrosting receiver 3 is sealed by the tape 7, the leaked water does not flow into the foam foam 6 and is not absorbed, and the inner case I ) And the tape 7 form a flow path and flow downward.

In this case, the leaked water may flow into the electrical equipment 8 such as the interior lamp and the deodorizing motor installed on the rear wall side of the refrigerating chamber R of the inner case I. Therefore, as the water is introduced into the electrical equipment 8 as described above, a short circuit or even a fire occurs, there is a problem that reduces the safety and reliability of the product.

An object of the present invention is to improve the problems of the prior art as described above, to provide a sealing structure of the refrigerator inner case that can improve the safety of the refrigerator.

1 is a partial cross-sectional view showing the structure of a conventional refrigerator inner case.

Figure 2 is a perspective view showing a sealing structure of a conventional refrigerator inner case.

Figure 3 is a partial cross-sectional view showing a preferred embodiment of the present invention.

Figure 4 is a perspective view of the inner case sealing structure according to an embodiment of the present invention.

※ Explanation of code about main part of drawing ※

1: Barrier 1a: Freezer Return Duct

1b: refrigerating chamber return duct 2: evaporator

3: defrosting receiver 3a: drainage

4: defrost heater 5: drain pipe

6: foam foam 8: electrical equipment

17: sealing tape 17a: drain hole

I: Inner Case O: Outcase

Inner case sealing structure according to the present invention for achieving the above object, the inner case forming a storage space of the refrigerator, the inner case is formed with a stage for partitioning the storage space; A barrier inserted into an inner side of the inner case; A defrost water receiver installed at the rear side of the barrier and configured to discharge the defrost water generated from the heat exchanger to the outside; The inner case of the inner case end installed with the barrier and the defrosting receiver is sealed to prevent penetration of the foaming liquid, and is composed of a sealing tape having a plurality of drainage holes formed on the surface thereof.

According to the above-described configuration, since water leaked between the barrier and the defrosting receiver is discharged through the drain hole formed in the sealing tape, it is possible to prevent water from penetrating the electrical equipment of the refrigerator, thereby preventing a short circuit and a fire. There is an advantage.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the process of explanation, the same code | symbol is attached | subjected and demonstrated in the same structure as the conventional one.

2 shows a sealing structure of the inner case according to the present invention. As shown, the storage space of the refrigerator is divided into an upper freezer compartment (F) and a lower refrigerating compartment (R), and the compartment is spaced up and down in the inner case (I) forming the storage space of the refrigerator. It is made by forming a stage having a predetermined thickness so as to be partitioned. The barrier 1 is inserted into the inner side of the inner case I.

The barrier 1 provides strength so that food and the like can be placed on the bottom of the freezer compartment F corresponding to the upper side thereof, and forms an insulating layer for preventing heat transfer between the freezer compartment F and the refrigerating compartment R. do. In addition, in the barrier 1, cold air circulated through the freezer compartment F is installed at the rear side of the freezer compartment F, and the freezer compartment return duct 1a returning to the evaporator 2 side that generates cold air is circulated through the freezer compartment R. A refrigerator compartment return duct (1b) is formed in which one cold air is returned to the evaporator (2) side, and although not shown, a refrigerator compartment is supplied so that a part of the cold air generated in the evaporator (2) can be supplied to the refrigerator compartment (R) side. The duct is formed. And such a barrier (1) is generally made of styrofoam of a predetermined shape in which the circulation path of the cold air is formed.

Next, a defrosting receiver 3 is provided on the rear side of the barrier 1 for collecting defrost water generated in the upper evaporator 2. That is, a defrost heater 4 is installed between the evaporator 2 and the defrosting receiver 3, and the frost generated in the evaporator 1 is melted by the heat generated by the defrost heater 4 to form a defrost water. The defrost water is collected in the defrost receiver.

And the bottom surface of the defrost receiver 3 is made of an inclined surface, the lower end of the inclined surface is formed with a drainage passage (3a) extending downward, the defrost water collected in the defrost receiver (3) is the drainage channel ( It flows downward along 3a) and is discharged | emitted outside through the drain pipe 5 connected to the said drainage path 3a. In addition, one side of the defrost receiver 3 is connected to the freezer compartment return duct (1a) and the refrigerating chamber return duct (1b) of the barrier (1), so that the cold air returning through the defrost receiver (3) Return to the evaporator side.

On the other hand, the inner side of the inner case (I) in which the barrier (1) and the defrosting receiver (3) is installed is sealed with a sealing tape (17) attached to the outer circumference of the stage. have. This is because in the process of forming the foam foam 6 for insulation between the outer case (O) and the inner case (I) of the refrigerator, the injected foam stock solution penetrates into the inner side of the inner case (I), and the foam The barrier 1 is deformed by the foaming pressure of the stock solution, or the connection between the barrier 1 and the defrosting receiver 3 is prevented from being spaced apart.

A plurality of drainage holes 17a are formed on the surface of the sealing tape 17. The drain hole 17a is deformed in the position of the barrier (1) and the defrosting receiver (3), when water is leaked at the connection portion of the barrier (1) and the defrosting receiver (3), the leaked water is This is for leaving the foamed article 6 side and absorbing it without penetrating into the electrical equipment 8 provided in the rear wall side of the refrigerating chamber R of the inner case I. Therefore, the drain hole 17a does not penetrate into the inner end of the foaming stock solution, and the water leaked from the connection portion between the barrier 1 and the defrosting receiver 3 is the foam foam 6 It should be formed in a predetermined size that can be discharged to the side.

Looking at the operation of the embodiment of the present invention configured as described above are as follows.

In order to manufacture the main body of the refrigerator, the inner case (I) in which the barrier (1) and the defrosting receiver (3) are installed is temporarily fastened inside the outer case (O) forming the outer shape of the refrigerator. By foaming by injecting a foaming liquid between I) and the outer case (O), the foamed foam (6) for thermal insulation of the refrigerator is formed. The foamed liquid injected at this time is prevented from flowing into the stage of the inner case I provided with the barrier 1 and the defrosting receiver 3 by the sealing tape 17.

On the other hand, in the process of foaming the injected foam as described above, when the barrier (1) and the defrosting receiver (3) is pressured by the foaming pressure generated during foaming and the position is separated, the barrier (1) ) And the gap between the defrosting receiver (3). In this state, water accumulated on the bottom of the freezer compartment F flows into the defrosting receiver 3 side through the freezer compartment return duct 1a of the barrier 1, or the defrost water collected in the defrosting receiver 3 is collected. When flowing into the freezer compartment return duct (1a) or the refrigerator compartment return duct (1b), such water is leaked through the gap generated in the connection portion of the barrier (1) and the defrosting receiver (3).

The leaked water is conventionally flowed down to form a flow path between the inner case I and the sealing tape 17, but a plurality of drain holes 17a are formed in the tape 17 according to the present invention. Therefore, the water leaked as described above is absorbed and escaped to the foam foam 6 side through the drain hole (17a), it does not flow into the electrical equipment (8) side of the refrigerator. Therefore, leakage of water may cause a short circuit in the refrigerator or a fire caused by a short circuit.

As described above, in the present invention, in installing the barrier and the defrost receiver in the refrigerator, water leaked due to the gap between the barrier and the defrost receiver does not flow into the electrical appliance side installed in the refrigerator, and forms a heat insulation layer of the refrigerator. It is configured to be discharged to the foam foam side. Therefore, the leaked water is introduced into the electrical component side will not cause a short circuit or a fire, it will be able to improve the safety of the product.

Claims (1)

An inner case forming a storage space of the refrigerator and having a stage partitioning the storage space; A barrier inserted into an inner side of the inner case; A defrost water receiver installed at the rear side of the barrier and configured to discharge the defrost water generated in the heat exchanger to the outside; An inner case sealing structure of a refrigerator comprising a sealing tape inside the inner case end provided with the barrier and the defrosting receiver to prevent penetration of the foaming liquid and having a plurality of drainage holes formed on the surface thereof.