KR20040056340A - Structure for sealing a barrier portion of an inner case for a refrigerator - Google Patents

Abstract

PURPOSE: A sealing structure of a barrier part of an inner case of a refrigerator is provided to seal a gap formed when a condensed water tray is not in a close contact with an inner case. CONSTITUTION: A sealing structure of a barrier part of an inner case of a refrigerator includes an inner case(20), a barrier(11), an insulator(30), a condensed water tray(32), and sealing beads(22). The barrier is integrally formed with the inner case and defines a storage space of the inner case into a refrigerator compartment and a freezer chamber. The insulator is mounted in the barrier, and has extension parts(32c) extended along an inner case surface of the freezer chamber at an outward protruded part of the barrier. The condensed water tray is mounted in a rear part of the insulator and formed with depressed drain channels(32a) on an inner wall surface. The sealing beads are formed in the shape corresponding to the drain channels on the inner case surface contacting the drain channels.

Description

Barrier Sealing Structure of Refrigerator Inner Case {Structure for sealing a barrier portion of an inner case for a refrigerator}

The present invention relates to a refrigerator inner case, and more particularly, to a barrier portion sealing structure of an inner case sealing a gap between a refrigerator barrier insulation and an inner case.

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 side cross-sectional view of the refrigerator. As shown, a freezer compartment F is formed at an upper portion of the inside of the refrigerator body, and a refrigerating chamber R is formed at a lower portion thereof. The freezing chamber F and the refrigerating chamber R are partitioned by the barrier 10, and the barrier 10 forms a bottom surface of the freezing chamber F and an upper surface of the refrigerating chamber R.

The barrier 10 of the refrigerator is a partition wall partitioning the storage space of the refrigerator into the freezer compartment F and the refrigerating compartment R. In order to insulate the freezer compartment F and the refrigerating compartment R inside the barrier 10. A solid insulation 3 (hereinafter referred to as a heat insulator) made of styrofoam is inserted. In the heat insulating material 3, a passage for returning to the evaporator 5 side of the heat exchange chamber, that is, the freezer compartment return passage 11, in order to cool the air which has been changed to a relatively high temperature in the freezer compartment F and the refrigerating compartment R again. And a refrigerating chamber return flow path 12.

The rear end of the heat insulator 3 is projected to a part of the rear of the barrier 10, the protruding rear end is formed with an extension portion 4c extending along the surface of the inner case (1) of the freezer compartment (F). . The extension part 4c prevents the foaming liquid injected during the process of forming the refrigerator main body from flowing into the barrier 10, and allows the insulation 3 to be inserted to a predetermined depth.

In addition, inside the rear end of the heat insulator 3, a defrost receiver 4 for collecting defrost water generated in the evaporator 5 is installed. That is, the air re-introduced to the evaporator 5 side is relatively high temperature and contains water in the process of circulating, condensed on the surface of the low temperature evaporator 5 to form frost. The defrosting receiver 4 is provided on the rear side of the barrier 10 so as to collect defrost water generated by defrosting the defrost heater 8 installed below.

On the inner wall surface of the defrosting receiver 4, a drainage flow path (not shown) is formed at regular intervals in the vertical direction so that the defrosting water flows downward to form a groove.

On the other hand, the defrosting receiver (4) to reinforce the strength of the rear of the heat insulating material (3) in addition to the function of simply discharge the defrost water to prevent the heat insulating material (3) is pressed by the pressure at the time of foaming foaming liquid Perform the function at the same time. Therefore, the defrosting receiver 4 is formed inside the rear end including the extension of the heat insulating material 3 which is in particular in contact with the inner case 1.

When the heat insulating material 3 is installed as described above, the outer case 2 is fastened to the outside of the inner case 1, and the space between the inner case 1 and the outer case 2 includes a liquid foam material. The foam stock solution of the polyurethane foam is filled and cured to form the heat insulation layer 9.

2 is a perspective view showing that the heat insulating material 3 is inserted into a barrier (not shown) of the inner case 1 according to the above configuration, and the arrow direction indicates the direction in which the freezing chamber is formed. As shown, it looks at the problem when the configuration according to the prior art.

As shown, the defrost receiver 4 is installed inside the rear end including the extension portion 4c of the heat insulator 3, and the inlet of the drain passage 4a formed in the defrost receiver 4 is formed. Because of the shape, a gap 4b is formed between the defrosting receiver 4 and the inner case 1 as much as a space for forming the drainage passage 4a, and the foam liquid flows through the gap 4b. .

Therefore, when the foam liquid flows into the barrier (not shown) through the gap, the insulation material 3 of the styrofoam material is crushed by the pressure generated during the foaming of the foam stock solution, or the insulation material 3 and the There arises a problem that the phenomenon that the water receiver 4 is released from the position occurs.

An object of the present invention is to improve the problems of the prior art as described above, and to provide an inner case barrier portion sealing structure for sealing the gap formed by the defrosting receiver is not in close contact with the inner case.

1 is a side cross-sectional view showing the internal structure of a typical refrigerator.

Figure 2 is a perspective view showing a structure in which the insulation is inserted into the barrier according to the prior art.

Figure 3a is an exploded perspective view showing an embodiment of the inner case barrier portion sealing structure according to an embodiment of the present invention.

Figure 3b is a perspective view showing a state in which the barrier portion of the inner case is sealed in accordance with an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

11 ..... Barrier 20 ..... Inner Case

22 ..... sealing beads 30 ..... insulation

32 ..... defrost basin 32a ..... drain

Inner case barrier portion sealing structure according to the present invention for achieving the above object is an inner case for forming a storage space in the refrigerator body; A barrier partitioning the storage space into a freezing compartment and a refrigerating compartment and integrally formed with the inner case; A heat insulating material installed inside the barrier and having an extended portion extending along the freezer compartment inner case surface at a rear end portion protruding a predetermined portion to the rear of the barrier; A defrost water receiver installed inside the rear end including the extension part of the heat insulator and having a drainage channel concave on the inner wall; And a sealing bead formed in a shape corresponding to the drain passage on the inner case surface in contact with the drain passage. Due to the concave shape of the drainage flow path, the defrosting receiver is not sealed to the inner case, characterized in that the sealing gap is formed by the sealing bead.

Next, the present invention will be described in more detail with reference to the accompanying drawings. Figure 3a is an exploded perspective view of the inner case 20 barrier part sealing structure according to an embodiment of the present invention. Parts not shown are to use the symbols of FIG. 1, and the arrow direction shown in the drawing is the freezer direction. As shown, an inner case 20 is formed in the refrigerator body to form a storage space, and the inner case 20 has a barrier 11 partitioning the storage space into a freezer compartment F and a refrigerator compartment R. Is formed.

In addition, the inner case 20 is formed with a sealing bead 22 in contact with the drain passage 32a to be described below, and the sealing bead 22 is formed opposite to the drain passage 32a. Molded. The heat insulating material 30 is installed in the barrier 11 formed in the inner case 20.

The insulation material is fixed to the inner surface of the barrier 11 formed in the inner case 20 by an adhesive or the like to provide strength to put food or the like on the bottom of the freezer compartment F, and the freezer compartment F and the refrigerating compartment R To prevent heat transfer.

In the heat insulating material 30, the cold air circulating in the freezer compartment F is installed at the rear side of the freezer compartment F, and the freezer compartment return passage 11 returning to the evaporator 5 side that generates cold air is circulated through the freezer compartment R. A refrigerator compartment return passage 12 is formed in which one cold air returns to the evaporator 5 side, and a refrigerator compartment supply passage (not shown) so that a part of the cold air generated in the evaporator 5 can be supplied to the refrigerator compartment R side. ) Is formed.

And inside the rear side of the heat insulator 30, a defrost receiver 32 for collecting the defrost water generated in the evaporator 5 is installed. On the inner wall surface of the defrosting receiver 32, the drainage passages 32a are formed at regular intervals in the vertical direction so that the defrost water flows downward to form a groove.

In addition, a defrost heater 8 is installed between the defrosting receiver 32 and the evaporator 5, and the frost generated in the evaporator 5 is melted by the heat of the defrost heater 8 to form a defrost water. This defrost water is collected in the defrost receiver 32.

In addition, the rear end portion of the heat insulator 30 is protruded to the outside of the barrier 11, and the protruding end portion is formed with an extension part 32c extending along the surface of the inner case 20 of the freezer compartment (F). do. The extension part 32c prevents leakage of the foaming liquid during the process of forming the refrigerator main body, and allows the heat insulating material 30 to be inserted at a predetermined depth.

3B is a perspective view of the sealing structure of the inner case 20 assembled in the above configuration. As shown, although the heat insulating material 30 in which the defrosting receiver 32 is installed in the rear end including the inside of the extension part 32c is inserted into the barrier 11 of the inner case 20, the inner case A sealing bead 22 having a shape opposite to that of the drainage passage 32a is formed in the 20, and between the inner case 20 and the defrosting receiver 32 in the state where the heat insulating material 30 is inserted. It can be seen that no gap is formed. That is, a sealing bead 22 is formed to protrude in correspondence with the drain passage 32a of the drain passage 32a, so that the inner case 20 and the heat insulating material 30 are in close contact with each other, so that a gap does not occur.

Therefore, since a gap in which the foaming liquid is introduced when the foaming liquid is injected for forming the refrigerator body is not formed, the foaming liquid is not introduced into the barrier 11 so that the internal structure of the complete insulation 30 is molded.

According to the above, it can be seen that the present invention has a technical idea to form a sealing bead having a shape opposite to the drainage channel in the inner case to seal a gap formed by the defrosting receiver not being in close contact with the inner case.

Within the scope of these technical ideas, one of ordinary skill in the art can be modified and used in various ways. Unlike the embodiment, instead of forming a sealing bead 22 having a shape opposite to the drain passage 32a, the drain passage 32a is disposed on an inner surface of the defrosting receiver 32 that contacts the inner case 20. It may be configured not to form. Like this embodiment, the defrosting receiver 32 may serve to reinforce the strength of the heat insulating material 30, and at the same time, between the defrosting receiver 32 and the inner case 20. There is no gap.

According to the present invention, the gap formed by the defrosting receiver cannot be in close contact with the inner case due to the concave shape of the drainage flow path is sealed by a sealing bead to inject the foam liquid between the inner case and the outer case. The foam is prevented from leaking to the barrier.

In addition, when the insulation is completely formed by the structure, heat transfer is blocked between the freezing compartment and the refrigerating compartment, and cold air is circulated smoothly inside the insulation to increase the refrigeration efficiency.

Claims (1)

An inner case forming a storage space in the refrigerator body; A barrier partitioning the storage space into a freezing compartment and a refrigerating compartment and integrally formed with the inner case; A heat insulating material installed inside the barrier and having an extended portion extending along the freezer compartment inner case surface at a rear end portion protruding a predetermined portion to the rear of the barrier; A defrost water receiver installed inside the rear end including the extension part of the heat insulator and having a drainage channel concave on the inner wall; And A sealing bead formed in a shape corresponding to the drain passage on the inner case surface in contact with the drain passage; And a barrier portion sealing structure of a refrigerator inner case sealing a gap formed by the sealing bead due to the concave shape of the drainage flow path, which cannot be in close contact with the inner case with the sealing bead.