KR101310758B1 - Refrigerator with side surface reinforcing component - Google Patents

Abstract

The present invention relates to a refrigerator, comprising a side reinforcement for preventing bending of the refrigerator main body and the refrigerator side shell, wherein the side reinforcement, the base material; And a reinforcing fiber mixed with the base material, wherein the reinforcing fiber is mixed with the base material to have at least two directions, and the side reinforcing material is formed in a plate shape and is installed between the refrigerator side outer plate and the duct. Supporter; And a blade formed at an end of the supporter, wherein the supporter is spaced apart from the outer plate, and the supporter is formed with a plurality of holes therethrough, and the blade is bent to protrude toward the duct side. . Thereby, the weight of the whole refrigerator can be reduced and large intensity | strength can be maintained.

Side Stiffeners, Supporters, Blades

Description

Refrigerator with side reinforcement {REFRIGERATOR WITH SIDE SURFACE REINFORCING COMPONENT}

1 is a front view of a refrigerator according to one embodiment of the present invention;

Figure 2 is a perspective view of the internal configuration of the refrigerator according to Figure 1,

3 is a cross-sectional view taken along the line III-III of FIG. 2,

4 is a perspective view showing a side reinforcement for a refrigerator used in the refrigerator according to FIG. 2;

5 is a cross-sectional view taken along the line V-V of FIG. 6, FIG.

6 is a cut-away view showing the internal configuration of the reinforcing material for the refrigerator door according to FIG.

7 is a perspective view showing a molding apparatus for molding a reinforcement material for a refrigerator door according to FIG. 4;

8 is a graph analyzing the structural strength according to the load of the side reinforcement for the refrigerator according to FIG.

DESCRIPTION OF REFERENCE NUMERALS

100: refrigerator 110: freezer door

120: freezer door 111: home bar

130: refrigerator side 131: side shell

200: side reinforcement 210: supporter

220: blade 300: reinforcing material forming apparatus

301: base material 302: reinforcing fiber

303: fiber spool 304: base material impregnation

305: mold 306: drawing machine

307: cutting machine 400: cold duct

500: foam

The present invention relates to a refrigerator having a side reinforcement, and more particularly to a refrigerator having a side reinforcement using a polyester or epoxy-based base material including a reinforcing fiber to reduce weight.

Generally, a cold air duct is installed inside the refrigerator case to supply cold air into the refrigerating compartment or the freezing compartment. On the other hand, between the cold air duct and the refrigerating compartment or freezer compartment side shell is injected foam foam for filling the inner space of the side wall of the refrigerating compartment or freezer compartment. In the process of foaming foam is injected between the cold air duct and the refrigerating chamber or the freezing chamber side shell, there is a problem that the foam flow of the foam foam is different and the bending occurs in the shell. In order to prevent bending of the outer shell, an iron reinforcing material was installed between the cold air duct and the cold compartment or the freezer compartment outer shell.

However, there is a problem in that the weight of the entire refrigerator becomes heavy by installing steel reinforcement on the cold air duct. The weight of the steel reinforcement is about 1kg to 5kg, this weight occupy a large part of the total weight of the refrigerator.

As the weight of the refrigerator increases, it is disadvantageous to use a conveyor system when the refrigerator is to be shipped for transportation.

In addition, the 25 European Union countries have established Waste Electrical and Electronic Equipment (WEEE), which states that producers are obliged to carry out marking and retrieval of electrical and electronic products discarded within the European Union. According to this guideline, the deposit has to be calculated in proportion to the weight of the refrigerator, so there is a problem that the price competitiveness is lowered when the refrigerator is exported.

In addition, the conventional steel reinforcement did not take into consideration the load conditions applied to the steel structure did not become an efficient structure.

The present invention has been made to solve the problems of the prior art as described above, and provides a refrigerator having a side reinforcement to maintain a great strength even if the weight is reduced.

In addition, another object of the present invention is to provide a refrigerator having a side reinforcement suitable for load characteristics in consideration of the load condition of the portion where the side reinforcement is installed.

In addition, the present invention provides a refrigerator provided with a side reinforcing material that can prevent the filling of the foam foam.

The present invention provides a refrigerator main body having a cold air duct for supplying cold air into the inside of the side in order to achieve the object as described above; And a side reinforcement to prevent bending of the outer plate of the refrigerator side, wherein the side reinforcement includes: a base material formed of a resin; And a reinforcing fiber mixed with the base material, wherein the reinforcing fiber is mixed with the base material to have at least two directions, and the side reinforcing material is formed in a plate shape, and is formed between the outer plate of the side surface of the refrigerator and the cold air duct. Supporter installed in; And a blade bent at an end of the supporter, wherein the supporter is installed to be spaced apart from the outer plate, and the supporter is formed with a plurality of holes, and the blade is bent to protrude toward the cold air duct side. Provided is a refrigerator having a side reinforcement.

Here, the supporter is formed with a plurality of holes, so that the foam foam is penetrated into the hole in the process of filling the foam can be more firmly fixed to the outer side reinforcing material for the refrigerator.

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At least one blade is characterized in that formed. By forming the blade, it is possible to prevent the side reinforcement for the refrigerator from being pushed to either side due to the high speed of the foam flow in the process of filling the foam.

The supporter and the blade, the reinforcing fibers are laminated in a single layer so that their longitudinal directions cross each other, the base material is characterized in that the epoxy or polyester-based resin. By stacking the reinforcing fibers in a single layer and at the same time intersecting their longitudinal directions, it is possible to effectively withstand the vertical load applied to the supporter.

The objects and features of this invention will become more apparent from the following detailed description.

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Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the configuration and operation according to an embodiment of the present invention.

However, in the description of the gist of the present invention, a detailed description of a known function or configuration will be omitted to clarify the gist of the present invention.

In addition, the same reference numerals are assigned to the same and the same components as those described above, and detailed description thereof will be omitted.

1 is a front view of a refrigerator according to an embodiment of the present invention, FIG. 2 is a perspective view illustrating an internal configuration of the refrigerator according to FIG. 1, FIG. 3 is a sectional view taken along the cutting line III-III of FIG. 2 is a perspective view illustrating a side reinforcing member for a refrigerator used in the refrigerator according to FIG. 2, and FIG. 5 is a cross-sectional view taken along the cutting line VV of FIG. 6.

As shown in FIG. 1, the refrigerator 100 according to the exemplary embodiment of the present invention has a refrigerating compartment formed at an upper portion of the freezer compartment, and this type of refrigerator may be referred to as a bottom freezer type refrigerator.

Among the doors 110 and 120 of the refrigerator 100, a home bar 111 is installed in the refrigerating compartment door 110. The home bar 111 is intended to reduce the inconvenience of opening and closing the refrigerating compartment door 110 by putting water or food that is frequently drunk therein, and its use is increasing.

In addition, the bottom freezer-type refrigerator has the inconvenience that the user must bend down to use the freezer compartment when making ice or using ice because the freezer compartment is at the bottom of the refrigerator compartment. In order to alleviate this inconvenience, an ice maker (ice maker, not shown) has been installed in the refrigerating compartment door 110.

Since the ice maker is installed in the refrigerating compartment door 110, in order to make ice, cold air of the freezing compartment should be used. For this purpose, a cold air duct for supplying the cold air of the freezer compartment to the cold compartment should be installed.

2 and 3, a cold air duct 400 is formed in the side surface 130 of the refrigerating compartment to supply cold air of the freezing compartment to the refrigerating compartment. That is, the cold air duct 400 for supplying the cold air of the freezer compartment formed in the lower portion of the refrigerator 100 to the refrigerating compartment formed in the upper portion is formed in the side surface 130 of the refrigerator 100. The cold air duct 400 has a bent shape toward the refrigerating chamber. One end of the cold air duct 400 is in communication with the freezer compartment and the other end is in communication with the refrigerating compartment and the refrigerating compartment door 110.

The side reinforcing member for the refrigerator 200 is installed between the cold air duct 400 and the outer plate 131 of the side surface 130 of the refrigerator. The side reinforcement 200 is installed to prevent the bending formed in the outer plate 131 by the cold air duct (400).

Meanwhile, the foam foam 500 is filled in the side surface 130. Referring to FIG. 3, the foam foam 500 is filled between the cold air duct 400 and the side reinforcement 200 and between the outer plate 131 and the side reinforcement 200.

As shown in FIG. 4, the side reinforcement member 200 for the refrigerator includes a supporter 210 formed in a wide surface to support the outer plate 131 of the side surface 130, and blades bent from both ends of the supporter 210. And 220. The cold air duct 400 is located at one side of the supporter 210, and the flow direction of the cold air is directed from the lower part of the supporter 210 to the upper part. Since the supporter 210 has a curved shape, the cold air duct 400 also has a curved shape.

On the other hand, the supporter 210 is formed with a plurality of holes (211,212,213). These holes 211, 212, 213 are for firmly fixing the supporter 210 inside the outer plate 131. That is, the foam foam 500 that flows along both sides of the supporter 210 flows through the holes 211, 212, and 213, so that the foam foam 500 is hardened on both sides of the supporter 210 while the supporter 210 is covered with the outer plate ( 131) It is firmly fixed inside.

Referring to FIG. 5, it can be seen that the blade 220 is bent from both side ends of the supporter 210. The supporter 210 has a great influence on the foaming flow of the foam foam 500 inside the cold air duct 400, which in turn affects the deformation of the supporter 210 and thus the outer plate 131 of the side surface 130 of the refrigerator 100. Affects the bend).

Foaming flow of the foam foam 500 is changed according to the shape of the side reinforcement for the refrigerator (200). Blade 220 is needed to even out this foaming flow. If there is no blade 220, the foam flow between the supporter 210 and the cold air duct 400 in FIG. 3 rapidly rises to push the supporter 210 toward the outer plate 131. For this reason, the space between the outer plate 131 and the supporter 210 is small so that the foam foam 500 is not sufficiently filled in this portion. Due to the non-filling of the foam foam 500, the shape of the outer plate 131 of the refrigerator side 130 is worsened.

In order to reduce the unfilled foam foam 500, the blade 220 is formed to be bent at both ends of the supporter 210. The blade 220 must be formed on the supporter 210 to serve as the side reinforcement 200. The blade 220 may be effectively bent perpendicularly to the supporter 210. Here, the height of the blade 220 is preferably 10mm in consideration of the distance between the space between the outer plate 131 of the refrigerator side 130 and the cold air duct 400.

Hereinafter, the material or internal configuration of the side reinforcement for the refrigerator 200 will be described.

6 is a cutaway view showing the internal configuration of the reinforcing material for the refrigerator door according to Figure 4, Figure 7 is a perspective view showing a molding apparatus for molding the reinforcing material for the refrigerator door according to Figure 4, Figure 8 is a This is a graph analyzing the structural strength according to the load of the side reinforcement for refrigerators.

As shown in Figure 6, the side reinforcement for the refrigerator 200 according to an embodiment of the present invention is formed of a reinforcing fiber 302 mixed with the base material 301 and the base material 301 and the reinforcing fiber 302 Is mixed in the base material 301 to have at least two directionality.

As such, the door reinforcement 200 formed by mixing the base material 301 and the reinforcing fiber 302 has superior specific strength as compared to iron or aluminum. Whereas the specific strengths of iron and aluminum are 0.3 and 0.5, respectively, the specific strength of the side reinforcing member 200 for a refrigerator according to an embodiment of the present invention is 5.7.

Therefore, the side reinforcement for the refrigerator 200 according to the present invention may have the same strength as the existing steel reinforcement 130 while minimizing its weight.

Various resins may be used as the base material 301. In consideration of price, it is most effective to use epoxy or polyester. In addition, the reinforcing fiber 302 uses a glass fiber (glass fiber) having a reasonable strength and low cost.

However, the reinforcing fiber 302 constituting the side reinforcement for the refrigerator 200 according to an embodiment of the present invention is not limited to glass fiber, boron (caron), graphite (graphite), Kevlar ( Nonmetallic fibers, such as kevlar) can also be used.

There may be a variety of methods for molding the reinforcement by mixing the base material 301 and the reinforcing fiber 302, but in order to maximize the strength of the reinforcement 200 and reduce the production cost, the side reinforcement for the refrigerator 200 according to the present invention ) Is most preferably molded by pultrusion.

As shown in FIG. 7, the reinforcing material forming apparatus 300 includes a fiber spool 303 wound around the reinforcing fiber 302, a reinforcing fiber 302 wound around the fiber spool 303, and a reinforcing fiber 302. The base material impregnation container 304 containing the base material 301 mixed with the base material, the mold 305 for curing the mixture of the reinforcing fiber 302 and the base material 301 passing through the base material impregnation container 304 to have a predetermined shape. ), A puller 306 for pulling out the mixture of the base material 301 and the reinforcing fiber 302 through the mold 305, the base material 301 and the reinforcing fiber 302 through the drawer 306 A cutter 306 for cutting the mixture of

Here, the mold 305 is characterized in that the mold 305 is heated in a constant cross-sectional shape. The pulsion method is a method for continuously forming a product having a constant cross-sectional shape. A mold having a constant cross-sectional shape can be used to form a constant cross-section of a product. It can be cured at the same time.

Method of molding the side reinforcement for the refrigerator 200 according to an embodiment of the present invention using the reinforcing material forming apparatus 300, the step of impregnating the reinforcing fiber 302 in the resin which is the base material (301) (S1) ; Forming a shape of the reinforcing member 200 by curing the reinforcing fiber 302 impregnated with the base material by a mold 305 (S2); Pulling the reinforcement 200 formed by the mold 305 by the drawer 306 (S3); And cutting the reinforcement 200 passed through the drawer 306 using the cutter 307 (S4).

By molding the side reinforcement for a refrigerator 200 according to an embodiment of the present invention by this method, it is possible to form a reinforcement having a high strength and the same cross section in the longitudinal direction at a low cost, and to form a reinforcement long to a large amount Suitable for production

In applying the side reinforcement for the refrigerator 200 according to an embodiment of the present invention molded by the method to the side 130 of the refrigerator compartment door 110, the side for the refrigerator in the same shape as the existing steel reinforcement 130 Designing the reinforcement 200 may reduce the structural efficiency and increase the price.

Therefore, in order to have the lowest possible weight and maximum strength, it is effective to design the optimum shape of the side reinforcement for the refrigerator 200 through the structural strength analysis of the refrigerator 100.

Referring to FIG. 8, it can be seen that the side reinforcement 200 used in the side surface 130 of the refrigerating chamber is mainly subjected to a load perpendicular to the surface of the supporter 210. At this time, it can be seen that the deformation of the support 210 of the side reinforcement for the refrigerator 200 is maximized at the central portion thereof.

Analysis through numerical analysis, when using a conventional steel reinforcement of thickness 1mm is 0.5mm, while using a reinforcement 200 mixed with the base material 301 and the reinforcing fiber 302 according to the present invention thickness 2.0 It can be seen that the deformation amount of mm is 0.48mm, which is 4% less than the existing steel, and the deformation amount of 3.0mm thickness is 0.15mm, which is 70% less than the existing steel.

As described above, since the vertical pressure load is mainly applied to the side reinforcement member 200 for the refrigerator according to the embodiment of the present invention, the thickness of the supporter 210 is preferably at least 0.5 mm and at most 5 mm.

In addition, since the supporter 210 of the side reinforcement member 200 for the refrigerator mainly receives a load or a pressure load perpendicular to the surface thereof, the reinforcing fibers mixed with the epoxy or polyester-based base material 301 and the base material 301 ( 302 and the reinforcing fibers 302 are laminated in a single layer so that their longitudinal directions cross each other.

That is, the side reinforcement for the refrigerator (200) takes a lot of load perpendicular to the surface of the supporter 210, but not torsion moments, etc., the fiber layer and the length of the reinforcing fiber 302 laminated so that the longitudinal direction crosses each other It is not necessary to laminate using all of the fibrous layers arranged in parallel with each other in directions.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

As described above, the present invention can reduce the weight of the entire refrigerator and maintain a great strength by manufacturing the side reinforcement for the refrigerator using a material mixed with the base material and reinforcing fibers.

In addition, the present invention can reduce the production cost by molding the side reinforcement for the refrigerator in the pulverization method and can produce a large amount of the reinforcement.

In addition, the present invention can improve the appearance of the refrigerator by preventing the filling of the foam using the blade.

The present invention can improve the structural efficiency by installing the side reinforcement in consideration of the load characteristics applied to the inside of the side of the refrigerator.

Claims (8)

A refrigerator main body having a cold air duct for supplying cold air into the inside of the side; And It includes; side reinforcement to prevent bending of the outer plate of the refrigerator side, The side reinforcement, A base material formed of a resin; And a reinforcing fiber mixed with the base material, wherein the reinforcing fiber is mixed with the base material to have at least two or more directions. The side reinforcement, A supporter formed in a plate shape and installed between an outer plate of the side surface of the refrigerator and the cold air duct; And a blade bent at the end of the supporter. The supporter is installed spaced apart from the outer plate, The supporter is formed through a plurality of holes, And the blade is bent to protrude toward the cold air duct. delete delete The method of claim 1, At least one blade is formed with a side reinforcement, characterized in that the refrigerator. The method according to claim 1 or 4, The supporter and the blade, Refrigerator with side reinforcement, characterized in that the reinforcing fibers are laminated in a single layer so that their longitudinal directions cross each other. The method of claim 5, The base material is a refrigerator provided with a side reinforcement, characterized in that the epoxy or polyester-based resin. delete delete

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