KR19990035649U - Urethane foam foam structure of refrigerator - Google Patents

Abstract

The present invention relates to a foam structure of the urethane foam of the refrigerator, and its purpose is to provide a back plate with a soft material, and to provide a protrusion for pressing the back plate to a fixing jig supporting the refrigerator body during the foaming operation to the inside of the refrigerator body. It is to provide a foam structure of the urethane foam of the refrigerator that can easily reduce the required amount of foamed urethane foam.

The present invention is a refrigerator body provided with an outer box, an inner box and a back plate, a fixing jig for fixing the refrigerator body when foaming urethane foam inside the refrigerator body, a protrusion projecting outward of the fixing jig, and a rear surface in close contact with the fixing jig. The plate and the back plate are made of a soft material so as to be compressed by the protrusions, and the urethane foam is foamed into the inside of the refrigerator body by simply improving the material of the back plate and the structure of the fixing jig supporting the refrigerator body during the foaming operation. There is an advantage that can easily reduce the requirements of.

Description

Urethane foam foam structure of refrigerator

The present invention relates to a refrigerator, and more particularly, to the structure of the back plate forming the back of the refrigerator main body and the fixing jig supporting the refrigerator main body during the foaming operation to improve the structure of the urethane foam of the refrigerator that can reduce the requirement of urethane foam It relates to a foam structure.

In general, the refrigerator is to keep various foods fresh for a long time by using the heat exchanged air from the evaporator of the refrigeration cycle.

1 is a perspective view showing a door opening state of the conventional refrigerator, Figure 2 is a cross-sectional view of the refrigerator main body and the fixing jig showing a state in which the conventional refrigerator body is installed in a fixing jig for urethane foam foam. As shown in the drawing, the refrigerator body 1 includes an inner box 1a, an outer box 1b, and a back plate 1c to form an outer urethane foam 9 therein. The inside of the refrigerator body 1 is provided with storage chambers 3 and 4 whose front surfaces are opened. The storage compartments 3 and 4 are partitioned by the intermediate partition 2 so that the freezer compartment 3 stores frozen foods above the intermediate partition 2 and stores refrigerated foods below the intermediate partition 2. The refrigerating chamber 4 is formed. In addition, doors 3a and 4a coupled to the refrigerator main body 1 by a hinge 5 are connected to the freezer compartment 3 and the refrigerating compartment 4 which are opened at the front, and open and close the freezer compartment 3 and the refrigerating compartment 4. Each is prepared. A cold air duct (not shown) through which cold air is circulated is provided at the rear of the freezer compartment 3 and the refrigerator compartment 4, which are not shown, and an evaporator (not shown) that generates cold air is provided at the cold air duct behind the freezer compartment 3. On the upper side of the evaporator, a blowing fan (not shown) is installed to supply the cold air generated in the evaporator to the freezing chamber 3 and the refrigerating chamber 4. As a result, the cold air supplied through the blower fan flows into the freezer compartment 3 and the refrigerator compartment 4 through a plurality of cold air outlets (not shown) communicating with the cold air ducts at the rear of the freezer compartment 3 and the refrigerator compartment 4. After cooling, the process of repeating the reflow into the evaporator through a return duct (not shown) provided in the intermediate partition 2 is repeated.

The refrigerator body 1 is made of a triple structure for heat insulation. That is, the outer plate 1b made of iron plate and the rear plate 1c are coupled to the rear side of the outer box 1b, and the inner box 1a made of plastic is coupled inside the outer box 1b to form a closed space therebetween. It is formed by being integrally spaced apart from each other to be integrally installed, and foaming the heat insulating material between them. At this time, the urethane foam (9) is filled with the heat insulating material, for this purpose is formed in the inlet (not shown) for injecting the urethane foam (9) on the lower surface of the refrigerator body (1).

Meanwhile, the foaming process of the refrigerator body 1 prepared as described above will be described. Assembling and fixing of the refrigerator body (1) first combines the outer box (1b) and the inner box (1a), and combines the back plate (1c) on the back of the outer box (1b) to prepare the outer shape of the refrigerator body (1). As a result, a closed space is formed between them. And the refrigerator main body 1 is installed to the upper side of the fixing jig 7 so that the back plate 1c is in close contact with the upper side of the fixing jig 7 fixing the refrigerator main body 1, and an injection hole (not shown) When the urethane foam (9) is injected into the closed space through, the injected urethane foam (9) is foamed and filled in the closed space, thereby forming a heat insulating material.

However, in the urethane foam foam structure of the conventional refrigerator, the amount of urethane foam foamed into the sealed space at the time of forming the heat insulator may be supplied more than necessary for heat insulation. At this time, in order to reduce the amount of urethane foam required to reduce the thickness of the back side by changing the shape of the trauma and the back plate. To change the trauma and the back plate, there was a problem that the production cost is increased because the mold must be changed.

The present invention is to solve the above problems, the object of the present invention is to provide a back plate with a soft material, and to provide a projection for pressing the back plate on the fixing jig supporting the refrigerator body during the foaming operation of the inside of the refrigerator body It is to provide a foam structure of the urethane foam of the refrigerator that can easily reduce the required amount of urethane foam to be foamed.

1 is a perspective view showing a conventional refrigerator.

Figure 2 is a cross-sectional view showing a fixing jig for urethane foam foam and the conventional refrigerator body.

3 is a perspective view showing a refrigerator according to the present invention.

Figure 4 is a cross-sectional view showing a fixing jig for a foam body and urethane foam foam according to the present invention.

Explanation of symbols on the main parts of the drawings

10: refrigerator body 11: inner box

12: Injury 13: Back plate

14: uneven part 30, 40: storage room

30: freezer 40: refrigerator

70: fixed jig 71: protrusion

90: urethane foam

The present invention for achieving the above object, the outer shape of the refrigerator having a storage compartment therein, the inner body to form the inner surface of the refrigerator body, the outer box to form the outer surface of the refrigerator body, between the trauma and the inner wound In the urethane foam foam structure of the refrigerator provided with a heat insulating material foamed for insulation, a back plate forming the rear wall of the refrigerator body, a fixing jig for fixing the refrigerator body when the urethane foam is foamed, the fixing jig to the outside A protruding protrusion is provided, and the back plate which is in close contact with the fixing jig is formed of a soft material so as to be compressed by the protruding portion.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a perspective view showing a refrigerator according to the present invention, Figure 4 is a cross-sectional view showing a fixing jig for a foam body and urethane foam according to the present invention. As shown in the drawing, the refrigerator body 10 includes an inner box 11, an outer box 12, and a back plate 13 so as to form an outer urethane foam 90 therein. Inside the refrigerator body 10, storage chambers 30 and 40 having front surfaces are provided. The storage compartments 30 and 40 are partitioned by the intermediate partition 20 so that the freezer compartment 30 stores frozen foods above the intermediate partition 20 to store refrigerated foods below the intermediate partition 20. The refrigerating chamber 40 is formed. In addition, the doors 31 and 41 which open and close the freezing compartment 30 and the refrigerating compartment 40 are coupled to the refrigerator body 10 by the hinge 50 so as to be rotatable to the refrigerator main body 10. Each is prepared. A cold air duct (not shown) through which cold air is circulated is provided at the rear of the freezer compartment 30 and the refrigerator compartment 40, which are not shown, and an evaporator (not shown) that generates cold air is provided at the cold air duct behind the freezer compartment 30. In the upper side of the evaporator, a blower fan (not shown) is installed to supply cold air generated in the evaporator to the freezing chamber 30 and the refrigerating chamber 40. Thus, the cold air supplied through the blower fan flows into the freezer compartment 30 and the cold compartment 40 through a plurality of cold air outlets (not shown) communicated with the cold air ducts at the rear of the freezer compartment 30 and the cold compartment 40. After cooling, the process of repeating the reflow into the evaporator through a return duct (not shown) provided in the intermediate partition 20 is repeated.

The refrigerator body 10 has a triple structure for heat insulation. That is, by combining the outer plate 12 and the back plate 13 provided to the rear side of the outer box 12, and the inner box 11 coupled to the inner side of the outer box 12 to provide a sealed space therebetween, It is made by foaming a heat insulating material into this sealed space. At this time, the insulating material is filled with the urethane foam 90 is foamed, for this purpose, an injection hole (not shown) for injecting the urethane foam (90) is formed on the lower surface of the refrigerator body (10).

On the other hand, in the present invention, when the amount of urethane foam 90 foamed into the inside of the sealed space at the time of forming the insulation in the urethane foam foam structure of the refrigerator is supplied to more than necessary for insulation, the back plate (13) ) And a protrusion 71 for pressing the back plate 13 on the fixing jig 70 supporting the refrigerator main body 10 during the foaming operation. This will be described in detail as follows.

The outer box 12 is provided to form an outer shape of the refrigerator body 10 by bending an iron plate, and forms both sides and upper and lower left and right surfaces of the opened front surface of the refrigerator body 10. And the rear surface is provided so that the back plate 13 installed to be installed later may be installed. Each outer end of the outer box 12 is to be bent inward to be provided so that the inner box 11 and the back plate 13 to be installed later can be fixed therein.

The inner box 11 is a plastic injection molded product that is integrally provided inside the box including an intermediate partition 20 to form the freezing chamber 30 and the refrigerating chamber 40. And the outer end is provided so as to be installed inside the trauma 12, when combined with the trauma 12 is formed a space spaced a predetermined interval between the trauma 12 and the inner trauma (11). The urethane foam 90, which is a heat insulating material, is foamed into the spaced space, and is formed as a heat insulating material of the refrigerator body 10.

The back plate 13 is provided on the rear side of the opened outer box 12. The back plate 13 is made of paper and flame-retardant resin, and an aluminum tape is attached to the outer surface. That is, it can be easily deformed by the external pressure and is provided as a material that is easy to manufacture. And the uneven part 14 which is provided to be uneven | corrugated so that the protrusion part 71 of the fixing jig 70 to be installed later is provided.

Meanwhile, when the urethane foam 90 is foamed into the refrigerator main body 10, the fixing jig 70 fixing the refrigerator main body 10 is provided with three semi-circular rods protruding unevenly upward. Is prepared. The protruding portion 71 protrudes upward from the middle portion of the upper side of the fixing jig 70, which is provided in a plate shape, and is coupled to the uneven portion 14 of the rear plate 13 when the refrigerator main body 10 is fixed.

Referring to the order of the foam foam structure of the refrigerator provided in this way as follows. Assembling and fixing of the refrigerator main body 10, the inner shell 11 is first coupled to the inside of the trauma 12, and the back plate 13 is coupled to the rear surface of the trauma 12 to prepare the outer shape of the refrigerator main body 10. . As a result, a closed space is formed between them. And the refrigerator main body 10 is installed to the upper side of the fixing jig 70 so that the back plate 13 is in close contact with the fixing jig 70 for fixing the refrigerator main body 10. At this time, the uneven portion 14 of the back plate 13 is coupled to the protrusion 71 of the fixing jig (70). When the urethane foam 90 is injected into the closed space through an injection hole (not shown), the injected urethane foam 90 is foamed and filled in the closed space, thereby forming a heat insulating material. At this time, the back plate 13 expands downward, and the uneven portion 14 of the back plate 13 is in close contact with the protruding portion 71 of the fixing jig 70. As a result, the amount of urethane foam 90 introduced into the refrigerator body 10 is reduced as the protrusions 71 protrude. Thereafter, the freezer door 31 and the refrigerating chamber door 41 are coupled to the openings of the freezer compartment 30 and the refrigerating compartment 40 on the front side of the refrigerator body 10 to complete the overall appearance of the refrigerator.

As described above, the back plate of the refrigerator body according to the present invention is recessed inward by the size of the protrusion provided in the fixing jig. As a result, the space inside the refrigerator body is reduced as the back plate is recessed, thereby reducing the amount of urethane foam foamed therein. That is, by simply improving the material of the back plate and the structure of the fixing jig supporting the refrigerator body during the foaming operation, there is an advantage that the required amount of urethane foam foamed into the refrigerator body can be easily reduced.

Claims (4)

A refrigerator body forming an outer shape of the refrigerator and having a storage compartment therein, an inner wound forming an inner surface of the refrigerator main body, an outer wound forming an outer surface of the refrigerator main body, a heat insulating material foamed to insulate between the outer wound and the inner wound, and the refrigerator main body In the back plate forming the rear wall of the foam, Urepan foam foam structure of the refrigerator provided with a fixing jig for fixing the refrigerator body when foaming the urethane foam, The fixing jig is provided with a protrusion protruding outward, the back plate is in close contact with the fixing jig is a urethane foam foam structure of the refrigerator characterized in that it is provided with a soft material to be compressed by the protrusion. The method of claim 1, The projecting portion of the refrigerator foam foam structure, characterized in that the plurality of semi-circular tube is connected to be provided uneven. The method of claim 2, The back plate is a urethane foam foam structure, characterized in that the concave-convex portion is provided to face the protrusion. The method of claim 3, The concave-convex portion of the refrigerator foam foam structure, characterized in that in close contact with the protrusion due to the foaming of the urethane foam after being combined with the protrusion.