KR102488524B1 - A refrigerator comprising a vacuum space - Google Patents

Abstract

The present invention relates to a refrigerator having a vacuum space, and more particularly, to a refrigerator capable of improving the insulation function of the refrigerator by forming a vacuum space between an outer case and an inner case constituting a main body.
A refrigerator having a vacuum space according to the present invention includes a main body having a storage space in which predetermined storage items can be accommodated, and the main body includes: an inner case having the storage space formed therein; an outer case in which the inner case is accommodated, the inner surface of which is spaced apart from the outer surface of the inner case by a predetermined distance; a vacuum space part provided between the inner case and the outer case, the inside of which is sealed and maintained in a vacuum state to perform an insulating action between the inner case and the outer case; It is characterized in that it includes at least one radiation blocking film disposed inside the vacuum space to be spaced apart from the inner case and the outer case to reduce radiative heat transfer through the vacuum space.

Description

A refrigerator comprising a vacuum space

The present invention relates to a refrigerator having a vacuum space, and more particularly, to a refrigerator capable of improving the insulation function of the refrigerator by forming a vacuum space between an outer case and an inner case constituting a main body.

A refrigerator is an electrical appliance capable of refrigerating or freezing storage by maintaining the temperature of a storage compartment at a temperature above or below zero using a refrigerant cycle.

Looking at the general configuration of a refrigerator, it includes a main body in which a storage space capable of storing stored objects is formed, and a door that is rotatably disposed or slidably disposed in the main body to open and close the storage space.

The main body includes an inner case in which a storage space is formed and an outer case in which the inner case is accommodated, and a heat insulating material is disposed between the inner case and the outer case.

The influence of the temperature in the storage space by the external temperature is suppressed by this heat insulating material.

Urethane foam is widely used as the heat insulator, and liquid urethane is injected into the space between the inner case and the outer case to be foam molded.

However, in order to realize the insulation effect using the insulation material, the thickness of the insulation material must be secured to a certain extent, which means that the insulation material becomes thicker. It gets bigger.

However, recently, a trend of miniaturization of refrigerators has emerged, and a need for a structure capable of reducing the external size while increasing the volume of the internal storage space has appeared.

US Patent Publication US2000882 (1935.05.07)

US Patent Publication US2044600 (1936.06.16)

The present invention has been made to solve the above conventional problems, and an object of the present invention is to provide a refrigerator capable of enhancing the insulation effect by forming a vacuum space between an inner case and an outer case, while minimizing the external volume. there is.

In addition, an object of the present invention is to provide a refrigerator having a support structure capable of maintaining a gap between the inner case and the outer case without being deformed by an external impact while a vacuum space is formed between the inner case and the outer case.

In addition, it is intended to provide a refrigerator having a structure capable of minimizing radiant heat transfer through a vacuum space formed between an inner case and an outer case.

A refrigerator having a vacuum space of the present invention for achieving the above object includes a main body having a storage space in which a predetermined storage can be accommodated, and the main body includes an inner case in which the storage space is formed inside. Wow; an outer case in which the inner case is accommodated, the inner surface of which is spaced apart from the outer surface of the inner case by a predetermined distance; a vacuum space part provided between the inner case and the outer case, the inside of which is sealed and maintained in a vacuum state to perform an insulating action between the inner case and the outer case; It is characterized in that it includes at least one radiation blocking film disposed inside the vacuum space to be spaced apart from the inner case and the outer case to reduce radiative heat transfer through the vacuum space.

The main body includes a first support plate provided on at least one surface of the surfaces of the inner case and the outer case facing each other; a second support plate provided on at least one of the surfaces of the inner case and the outer case facing each other and arranged to face the first support plate; It is preferable to further include a plurality of spacers that are fixedly disposed on the first support plate and support to maintain a distance between the inner case and the outer case.

Preferably, the radiation blocking film includes a plurality of through holes formed to pass the plurality of spacers.

It is preferable that at least some of the plurality of spacers are provided with a plurality of spacers to maintain a distance between the first support plate and the radiation blocking film and between the radiation blocking film and the second support plate.

Preferably, the radiation blocking film is provided in parallel with two radiation blocking films spaced apart from each other in the vacuum space, and the plurality of space keeping members are provided on one surface and the other surface of the radiation blocking film, respectively.

Preferably, the plurality of gap maintaining members are formed in a boss shape having a predetermined height and disposed on an outer circumferential surface of the spacer.

It is preferable that the diameter of the through hole of the radiation blocking film is larger than the diameter of the spacer and smaller than the outer diameter of the spacer.

It is preferable that the plurality of space maintaining members disposed between the pair of radiation blocking films are connected to each other by connecting ribs to form an integral set.

It is preferable that the plurality of space maintaining members disposed between the radiation blocking film and the second support plate are connected to each other by connecting ribs to form an integral set.

It is preferable that the plurality of spacing members disposed between the first support plate and the radiation blocking film disposed thereon are integrally formed with the spacer.

The inner surface of the gap maintaining member is preferably formed to be inclined to minimize contact with the spacer and thereby minimize heat transfer by conduction.

It is preferable that the connecting ribs of the integrally formed gap maintaining member set do not come into contact with the spacer, the radiation blocking film, and the second support plate.

Preferably, the radiation blocking film is made of an aluminum thin film.

The thickness of the radiation blocking film is preferably 0.05 to 0.30 mm.

According to the refrigerator of the present invention described above, a vacuum space portion, which is not a normal heat insulating material, is formed between the inner case and the outer case, and heat transfer between the inner case and the outer case is suppressed by the vacuum space portion. action takes place

Since the thermal insulation effect in a vacuum state is significantly superior to that of conventional thermal insulators, the refrigerator according to the present invention has an advantage of superior thermal insulation compared to conventional refrigerators.

On the other hand, in the case of the vacuum space, insulation is performed as long as the vacuum state is maintained regardless of its thickness (interval between the inner case and the outer case). An increase in thickness leads to an increase in the size of the refrigerator.

Therefore, compared to conventional refrigerators, the refrigerator according to the present invention can reduce the size of the outer case while maintaining the same storage space, thereby contributing to compactness of the refrigerator.

In addition, according to the refrigerator of the present invention, since a radiation blocking film is provided between the inner case and the outer case to block radiant heat transfer, heat transfer by radiation as well as heat transfer by conduction or convection can be minimized, and the insulation effect is very excellent. .

In addition, according to the refrigerator of the present invention, while a vacuum space is formed between the inner case and the outer case, the inner case and the outer case are not deformed by external impact and the distance between them can be maintained.

Workability is improved by providing a structure in which parts such as an inner case and an outer case forming the vacuum space, and one or more radiation blocking films and spacers therebetween can be easily assembled.

1 is a perspective view showing an example of a refrigerator according to the present invention.
2 is a partially cut-away perspective view showing an inner case, an outer case, and various parts therebetween in the refrigerator according to the present invention.
FIG. 3 is a perspective view illustrating assembling the first support plate and the spacer and the second support plate in FIG. 2;
FIG. 4 is a perspective view showing that some of the plurality of spacers formed on the first support plate of FIG. 2 are provided with spacers.
FIG. 5 is a perspective view illustrating the radiation blocking film of FIG. 2 .
6 is a perspective view showing a set of spacing members integrally formed by connecting a plurality of spacing members.
7 is a perspective view showing that two sets of distance maintaining members are provided in one spacer.
8 is a cross-sectional view showing that one spacer and two sets of spacers are provided in one spacer.
9 is a perspective view viewed from above to show the relative positional relationship of the spacer set with adjacent spacers.
10 is a partial cross-sectional view showing an inner case, an outer case, and various parts therebetween.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 shows an example of a refrigerator according to the present invention. FIG. 2 is a partially cut-away perspective view showing an inner case, an outer case, and various parts therebetween in the refrigerator according to the present invention.

As shown in FIG. 1, the refrigerator according to the present invention includes a main body 1 in which a storage compartment is formed, a first door 4 rotatably provided on the left side of the main body 1, and the main body 1. It includes a second door 5 rotatably provided on the right side of.

Here, the first door 4 opens and closes the freezing compartment of the storage compartment, and the second door 5 opens and closes the refrigerating compartment of the storage compartment, but the present invention is not limited to the refrigerator having this structure.

That is, the refrigerator of FIG. 1 is a so-called side-by-side type refrigerator in which the freezing compartment is disposed on the left side and the refrigerating compartment is disposed on the right side. Applicable to refrigerators. In addition, it can be applied to a refrigerator having only a refrigerating compartment or a freezing compartment or a refrigerator further including a separate cooling compartment in addition to the refrigerating compartment and the freezing compartment.

Looking at the structure of the main body 1, the inner case 110 in which the storage space is formed to the inside; an outer case 120 accommodating the inner case and spaced apart from the inner case by a predetermined distance; a vacuum space part 130 provided between the inner case and the outer case, the inside of which is sealed and maintained in a vacuum state to perform an insulating action between the inner case and the outer case; One or more radiation blocking films 210 are disposed inside the vacuum space 130 to be spaced apart from the inner case and the outer case to reduce radiative heat transfer through the vacuum space.

The outer case 120 and the inner case 110 are disposed to be spaced apart from each other, and a separate heat insulating material is not disposed in this space, but only maintained in a vacuum state to perform an insulation function.

That is, as the vacuum space 130 is formed between the outer case 120 and the inner case 110, the medium mediating heat transfer between the inner case 110 and the outer case 120 is removed. keep

By doing so, it is possible to prevent the heat of the hot air outside the outer case 120 from being transferred to the inner case 110 and the inside thereof.

Meanwhile, in FIG. 1 , the inner case 110 , the outer case 120 , and the spacer 150 are illustrated with the first support plate 160 and the second support plate 170 omitted for convenience.

It is preferable that one or more radiation blocking films 210 are disposed inside the vacuum space 130 to be spaced apart from the inner case and the outer case to reduce heat transfer by radiation.

In order to prevent heat transfer by radiation in the vacuum space 130 formed between the outer case 120 and the inner case 110, the one or more radiation blocking films 210 are provided between the outer case 120 and the inner case 120. They are arranged to be spaced apart from the case 110 .

The radiation blocking film 210 is a metal thin film having a low emissivity and serves to block radiant heat transfer.

In the case of a thermos bottle using conventional vacuum insulation, a technique for blocking radiant heat transfer by plating the inner surface of silver or copper is known.

However, rather than plating or coating a metal in the vacuum space, the heat transfer blocking effect is much better when the radiation blocking film is arranged to be spaced apart in the vacuum space as in the present invention.

Therefore, in the present invention, the radiation blocking film 210 made of a metal thin film is disposed in the vacuum space 130 to be spaced apart from the outer case 120 and the inner case 110, respectively.

The radiation blocking film 210 is preferably made of an aluminum thin film.

In the case of aluminum, since the price is cheaper than that of silver or copper, the manufacturing cost is low and the emissivity is not significantly different.

Also, the thickness of the radiation blocking film 210 is preferably 0.05 to 0.30 mm.

Since the radiation blocking film 210 should be spaced apart from the outer case 120 and the inner case 110, it should have strength enough to withstand deformation due to its own weight or external impact.

Thus, when the radiation blocking film 210 has a thickness of 0.05 to 0.30 mm, it may have strength capable of maintaining its shape by spacers 150 described later.

A plurality of spacers for maintaining a gap between the inner case 110 and the outer case 120 to maintain the shape of the vacuum space 130 between the inner case 110 and the outer case 120. (Spacer) 150 is preferably disposed between the inner case 110 and the outer case 120. The plurality of spacers 150 are arranged and supported so as to maintain a distance between the inner case 110 and the outer case 120 .

A plurality of spacers 150 are to be fixed between the inner case 110 and the outer case 120, and as a structure for fixing them, the plurality of spacers 150 are attached to the first support plate 160. is placed on

The first support plate 160 may be provided to come into contact with any one of surfaces of the inner case 110 and the outer case 120 facing each other.

In FIG. 2 , the first support plate 160 is disposed to contact the outer surface of the inner case 110, but the first support plate 160 may be disposed to contact the inner surface of the outer case 120.

The body 1 further includes a second support plate 170 provided on any other surface of the inner case 110 and the outer case 120 facing each other and disposed to face the first support plate. desirable.

In the embodiment of FIG. 2 , the second support plate 170 is disposed to contact the inner surface of the outer case 120, and the plurality of spacers 150 are fixedly disposed on the first support plate 160 to It is supported to maintain a gap between the first support plate 160 and the second support plate 170.

Since the first support plate 160 is in contact with the outer surface of the inner case 110 and the second support plate 170 is in contact with the inner surface of the outer case 120, the plurality of spacers 150 are After all, it is supported to maintain the distance between the inner case 110 and the outer case 120 .

In the case of the embodiment shown in FIG. 2, the second support plate 170 is provided with a predetermined distance from the first support plate 160, but the plurality of spacers 150 are integrally fixed to the first support plate ( 160 may be provided between the inner case 110 and the outer case 120 .

* In the case where the second support plate 170 is not present, ends of the plurality of spacers 150 may be disposed to directly contact the inner surface of the outer case 120 .

Meanwhile, in FIG. 1 , the first support plate 160 and the second support plate 170 are omitted for convenience.

Returning to the case where the second support plate 170 is also provided, the second support plate 170 includes a plurality of grooves 175 formed on an inner surface thereof so that the ends of the plurality of spaces 150 are inserted. desirable.

The plurality of grooves 175 formed in the second support plate 170 are provided to the spacers 150 when the second support plate 170 is overlapped with the plurality of spaces 150 integrally formed in the first support plate 160. position relative to it is fixed.

Since the inner case 110 and the outer case 120 constituting the main body 1 must form a vacuum space 130 therebetween, for example, the inner case forming one side of the main body 1 ( 110) and the outer case 120 should be integrally formed to have a size corresponding to the size of one side thereof.

On the other hand, the first support plate 160 and the second support plate 170 produce a unit having a predetermined size smaller than the inner case 110 and the outer case 120, and then the first support plate 160 and A plurality of sets in which the second support plate 170 is assembled by facing each other with the spacer 150 therebetween may be manufactured and inserted between the inner case 110 and the outer case 120 to be assembled.

Of course, the first support plate 160 and the second support plate 170 may be fabricated and assembled in the same size as the inner case 110 and the outer case 120 .

FIG. 2 shows only a part of the assembly structure between the inner case 110 and the outer case 120 as a laminated structure.

Therefore, it will be understood that in practice, the assembly structures from the first support plate 160 to the second support plate 170 are assembled and inserted between the inner case 110 and the outer case 120 so as to overlap each other.

Next, with reference to FIGS. 3 to 5 , the structure and assembly method of the first support plate, the spacer, the spacer, the radiation blocking film, and the second support plate will be described in more detail.

3 is a perspective view showing assembling a first support plate, a spacer, and a second support plate, and FIG. 4 is a perspective view showing that a spacer is provided in some of a plurality of spacers formed on the first support plate of FIG. 2, and FIG. is a perspective view showing the radiation blocking film of FIG. 2 .

As shown, the plurality of spacers 150 are preferably arranged in a plurality of rows vertically and horizontally.

The plurality of spacers 150 integrally formed and disposed on the first support plate 160 are arranged in rows in the vertical and horizontal directions, as shown in FIGS. 3 and 4 .

As the plurality of spacers 150 are arranged in a plurality of rows, not only design and molding are easy, but also assembly work is easy, and the strength to withstand vacuum pressure or external impact within the vacuum space 130 after assembly is high. can get bigger

And, it is preferable that the ends of the plurality of spacers 150 have a convex curved shape.

By forming the ends of the spacers 150 in a convex curved shape, the assembly work can be much easier because the ends of each spacer 150 are easily seated in the grooves 175 formed in the second support plate 170 during assembly. .

In addition, it is more preferable that the plurality of grooves 175 of the second support plate 170 have a concave curved shape corresponding to the shape of the plurality of spacers 150 .

Since the plurality of grooves 175 of the second support plate 170 are formed in a shape corresponding to the shape of the plurality of spacers 150, not only is positioning easy during assembly, but also the second support plate 170 remains stable after assembly. It can be fixed so that it does not move in a direction parallel to its surface.

The spacer 150, the first support plate 160, and the second support plate 170 may be made of any one of metal, ceramic, and reinforced plastic.

The spacer 150 is provided in the vacuum space 130 between the inner case 110 and the outer case 120, and the first support plate 160 and the second support plate 170 are provided in the inner case 110. and the outer case 120 are in contact with each other.

Therefore, it is necessary to minimize heat transfer from the outside of the outer case 120 to the inside of the inner case 110. can

Therefore, the spacer 150, the first support plate 160, and the second support plate 170 provided to come into contact between the inner case 110 and the outer case 120 are metal or ceramic materials having low thermal conductivity, respectively. , It is preferable to be made of any one of reinforced plastics.

Among them, since it is preferable to manufacture the spacer, etc. with a material having low thermal conductivity and excellent strength, it is more preferable to manufacture the spacer, etc., with ceramic or reinforced plastic rather than a metal having excellent strength but relatively high thermal conductivity among the materials.

As shown in FIG. 5 , the radiation blocking film 210 includes a plurality of through holes 215 formed to allow the plurality of spacers 150 to pass therethrough.

Since the plurality of through holes 215 pass through the plurality of spacers 150 , they are formed at positions corresponding to positions of the respective spacers 150 .

Since the plurality of spacers 150 are arranged in a plurality of rows vertically and horizontally, the plurality of through holes 215 are correspondingly arranged in a plurality of rows vertically and horizontally.

At least some of the plurality of spacers 150 have a plurality of gaps to maintain a distance between the first support plate 160 and the radiation blocking film 210 and between the radiation blocking film 210 and the second support plate 170, respectively. Preferably, a holding member 250 is provided.

The plurality of spacers 250 may be provided in each of the plurality of spacers 150, but the radiation blocking film 210 made of a metal thin film and having a predetermined thickness varies depending on the material characteristics, but due to the characteristics of the metal material Since it does not sag easily, it is preferable that the plurality of space keeping members 250 are provided and arranged only on some of the plurality of spacers 150 .

In addition, when all the spacers 150 are provided with the spacing member 250, since the possibility of heat being conducted through the spacer 150 and the spacing member 250 increases, only a portion of the spacer 150 It is more preferable to have the gap maintaining member 250.

*The radiation blocking film is provided in parallel with two radiation blocking films 210 and 220 spaced apart from each other in the vacuum space 130, and the plurality of space keeping members 250 are provided in the radiation blocking film 210 and 220. It is preferable to be provided on one side and the other side, respectively.

As shown in FIG. 2 , in the vacuum space 130 formed between the inner case 110 and the outer case 120, the first support plate 160 and the second support plate 170 are disposed therebetween. A structure including a spacer 150 and two radiation blocking films 210 and 220 is inserted.

As described above, a plurality of spacers 150 are integrally formed on the surface of the first support plate 160 so as to protrude in rows vertically and horizontally.

As shown in FIG. 4 , the space maintaining member 250 is disposed to be inserted into some of the plurality of spacers 150 formed on the first support plate 160 .

The plurality of gap maintaining members 250 may be formed in a boss shape having a predetermined height and disposed on an outer circumferential surface of the spacer 150 .

Alternatively, the plurality of space maintaining members 250 may be integrally formed with the spacer 150 .

In this case, the spacing member 250 integrally formed with the spacer 150 is disposed between the first support plate 160 and the first radiation blocking film 210 disposed thereon.

In the case of the space maintaining member (262, 272, see FIG. 7) disposed between the two radiation blocking films 210 and 220, the radiation blocking film 210 needs to be inserted into the plurality of spacers 150, so that the spacer It will have to be assembled in such a way as to insert a thing formed separately from 150 into the spacer 150.

For convenience, it will be understood that in FIG. 2 , only those disposed between the first support plate 160 and the first radiation blocking film 210 disposed thereon among the gap maintaining members are illustrated.

It is preferable that the diameter of the through hole 215 of the radiation blocking films 210 and 220 is larger than the diameter of the spacer 150 and smaller than the outer diameter of the spacer 250 .

Since the gap maintaining member 250 has a boss shape, that is, a hollow cylinder shape to be inserted into the outer circumferential surface of the spacer 150, it must be larger than or equal to the diameter of the spacer 150.

Also, since the spacer 150 must pass through the through hole 215 , the diameter of the through hole 215 must be greater than or equal to the spacer 150 .

Therefore, when the diameter of the through hole 215 is larger than the diameter of the spacer 150 and smaller than the outer diameter of the gap maintaining member 250, the spacer 150 can pass through the through hole 215 and The radiation blocking film 210 may be supported by being caught on the upper surface of the space maintaining member 250 .

In addition, since it is most preferable for the radiation blocking film 210 not to contact the spacer 150 to prevent heat transfer by conduction, the diameter of the through hole 215 is greater than the outer diameter of the spacer 150. Bigger is better.

FIG. 5 shows a first radiation blocking layer 210, and like the first radiation blocking layer 210 shown in FIG. It will be understood that the through hole is formed.

Further, it is preferable that the plurality of space maintaining members 262 disposed between the pair of radiation blocking films 210 and 220 are connected to each other by connecting ribs 264 to form an integral set 260 .

In addition, it is preferable that the plurality of space maintaining members 272 disposed between the second radiation blocking film 220 and the second support plate 170 are also connected to each other by connecting ribs 274 to form an integral set 270. Do.

FIG. 6 shows a first set of spacing members 260 connected to each other and formed as an integral set, and FIG. 7 shows two sets of spacing members 260 and 270 inserted into one spacer 150. 8 is a cross-sectional view showing that one spacer 150 is provided with one spacer 250 and two spacer sets 260 and 270.

The first set of distance maintaining members 260 is integrally formed by including a plurality of distance maintaining members 262 disposed in rows vertically or left and right and connecting ribs 264 provided on the side surfaces of the distance maintaining members it is desirable

As shown in FIG. 6 , the first set of distance maintaining members 260 are connected to each other by 12 connecting ribs 264 on one side of nine distance maintaining members.

The number of spacing members and connecting ribs constituting one spacing member set may be formed differently from that shown in FIG. 6 . For example, 16 spacing members may be integrally formed by being connected to each other by 24 connecting ribs.

In addition, a plurality of space maintaining members 262 disposed between the pair of radiation blocking films 210 and 220 and a plurality of space maintaining members disposed between the second radiation blocking film 220 and the second support plate 170 272 may be separately formed in the same manner as the spacing member 250 disposed between the first support plate 160 and the first radiation blocking film 210 .

However, it is preferable to assemble the plurality of space keeping members 250 in combination with the above-described first space keeping member set 260 and the second space keeping member set 270 because assembly is good.

In order to minimize heat transfer by conduction by minimizing contact with the spacer 150, the inner surfaces of the gap maintaining members 262 and 272 are preferably formed to be inclined.

As best shown in the cross-sectional view of FIG. 8, the inner surfaces of the spacer 262 of the first spacer set 260 and the spacer 272 of the second spacer set 270 are below. It is formed inclined so that its diameter decreases as it goes to .

Therefore, since the part where the spacer 262 and 272 contacts the spacer 150 is only the lowermost part of the inner surface of the spacer 262 and 272, the spacer 150 is separated from the spacer 150 by the spacer 150. The amount of heat transfer conducted through (262, 272) can be minimized.

In the case of the spacing member 250 below the three spacing members in FIG. 8, the outer side, not the inner side, is inclined so that its diameter gradually decreases as it goes downward.

This is to minimize the area of the part where the gap maintaining member 250 contacts the first support plate 160 .

However, the gap maintaining member 250 may also be inclined so that its diameter gradually decreases as its inner surface goes downward.

In addition, the inclination direction may also be inclined so that the inner surface of the space keeping member 250 gradually decreases in diameter as it goes upward.

In addition, the inclination direction of the other spacing members 262 and 272 may be formed to be inclined upward as well as downward.

In addition, the three spacing members (250, 262, 272) may be assembled by combining those formed differently from each other in the direction of inclination.

Further, the connection ribs 264 and 274 of the integrally formed gap maintaining member sets 260 and 270 do not come into contact with the spacer 150, the radiation blocking films 210 and 220, and the second support plate 170. It is desirable that

As shown in FIG. 7, the connection ribs 264 and 274 are formed smaller than the height of the spacing members 262 and 272 and are connected to the middle height portions of the spacing members 262 and 272.

Thus, the top or bottom surfaces of the space maintaining members 262 and 272 are in contact with the radiation blocking films 210 and 220 or the second support plate 170, but the connecting ribs 264 and 274 are not in contact with them. Therefore, heat transfer by conduction can be minimized.

In addition, as shown in FIG. 9 , it is preferable that the connection ribs 264 and 274 of the gap maintaining member sets 260 and 270 are disposed so as not to come into contact with other spacers 150 disposed around them.

By forming the connection ribs 264 and 274 so as not to contact other spacers 150 around them, not only can the spacer sets 260 and 270 be inserted into the plurality of spacers 150 and assembled, but also conduction Heat transfer can also be minimized.

Finally, the process of assembling the components of the refrigerator body of the present invention will be described.

The perspective view of FIG. 2 and the cross-sectional view of FIG. 10 show the aforementioned inner case 110 and outer case 120 and components assembled and inserted therebetween.

First, as shown in FIG. 4 , space maintaining members 250 made of separate parts are inserted into some of the plurality of spacers 150 integrally formed on the first support plate 160 .

Then, one radiation blocking film 210 of FIG. 5 is inserted so that the plurality of spacers 150 pass through the plurality of through holes 215 . At this time, the radiation blocking film 210 is seated on the upper surfaces of the space maintaining members 250 .

Then, the first spacer set 260 is inserted into the plurality of spacers 150 so that it is seated on the radiation blocking film 210 .

Again, the second radiation blocking layer 220 is inserted so that the plurality of spacers 150 pass through the plurality of through holes.

A second space keeping member set 270 is inserted thereon so as to be seated on the radiation blocking film 220 .

Then, the second support plate 170 is covered so that the ends of the plurality of spacers 150 are inserted into the grooves 175 of the second support plate 170 .

The spacer set assembly including the radiation blocking film thus assembled is inserted into the vacuum space 130 between the inner case 110 and the outer case 120 .

Since a plurality of spacer set assemblies are required to fill the vacuum space 130 , assembly of the refrigerator body can be completed by continuously inserting those having appropriate dimensions into the vacuum space 130 .

According to the refrigerator according to the present invention, it is very easy to assemble a plurality of spacers by inserting a plurality of spacers into the vacuum space between the inner case and the outer case, and can have a structure that can sufficiently withstand vacuum pressure, as well as have a vacuum space. It is possible to minimize the transfer of heat by radiation through the part, so the insulation performance is very excellent.

In the above, preferred embodiments of the present invention have been described, but the scope of the present invention is not limited only to such specific embodiments, and those skilled in the art can properly within the scope described in the claims of the present invention. change will be possible.

1: body
4, 5: door
110: inner case
120: outer case
130: vacuum space
150: spacer
160: first support plate
170: second support plate
175: groove part
210: first radiation blocking film
215: through hole
220: second radiation blocking film
250: spacing maintaining member
260: first spacing member set
262: spacing maintaining member
264: connecting rib
270: second spacing member set
272: spacing maintaining member
274: connecting rib

Claims (18)

An inner case in which a storage space is formed to the inside;
an outer case in which the inner case is accommodated, the inner surface of which is spaced apart from the outer surface of the inner case by a predetermined distance;
a vacuum space unit provided between the inner case and the outer case, the inside of which is sealed and maintained in a vacuum state to perform an insulating action between the inner case and the outer case;
a support structure capable of maintaining a gap between the inner case and the outer case without being deformed by an external impact while a vacuum space is formed between the inner case and the outer case;
a radiation blocking film disposed inside the vacuum space to be spaced apart from the inner case and the outer case, and provided with at least one radiation blocking film to reduce radiative heat transfer through the vacuum space; And
a gap maintaining member limiting movement of the radiation blocking film between the inner case and the outer case;
The support structure includes a first support plate provided between the inner case and the outer case,
The refrigerator, characterized in that the gap maintaining member is in contact with the first support plate. According to claim 1,
The refrigerator, characterized in that the upper or lower surface of the gap maintaining member is in contact with the first support plate. An inner case in which a storage space is formed to the inside;
an outer case in which the inner case is accommodated, the inner surface of which is spaced apart from the outer surface of the inner case by a predetermined distance;
a vacuum space unit provided between the inner case and the outer case, the inside of which is sealed and maintained in a vacuum state to perform an insulating action between the inner case and the outer case;
a support structure capable of maintaining a gap between the inner case and the outer case without being deformed by an external impact while a vacuum space is formed between the inner case and the outer case;
a radiation blocking film disposed inside the vacuum space to be spaced apart from the inner case and the outer case, and provided with at least one radiation blocking film to reduce radiative heat transfer through the vacuum space; And
a gap maintaining member limiting movement of the radiation blocking film between the inner case and the outer case;
The support structure includes a spacer for supporting to maintain a distance between the inner case and the outer case,
The refrigerator, characterized in that the gap maintaining member is in contact with the spacer. According to claim 3,
In order to minimize the area of the part where the spacer maintaining member contacts the spacer, the outer surface of the spacer maintaining member is inclined so that its diameter gradually decreases as it goes upward or downward, or its inner surface is upward or downward. A refrigerator characterized in that it is formed inclined so that its diameter gradually decreases as it goes toward. According to claim 1,
In order to minimize the area of the portion where the spacer maintaining member contacts the first support plate, the outer surface of the spacer maintaining member is inclined so that its diameter gradually decreases as it goes upwards or downwards, or its inner surface faces upwards. Or a refrigerator characterized in that it is formed inclined so that its diameter gradually decreases as it goes downward. According to claim 1,
The first support plate is manufactured to have the same size as the size of the inner case and the outer case forming one side of the refrigerator body, or is manufactured in a plurality of small sizes and then disposed between the inner case and the outer case. Features a refrigerator. The method of claim 1, wherein the support structure,
A refrigerator further comprising a plurality of spacers arranged at a predetermined distance from each other in a shape protruding from one surface of the first support plate, fixed to the first support plate, and supporting to maintain a distance between the inner case and the outer case. . According to claim 7,
The first support plate and the plurality of spacers are integrally disposed between the inner case and the outer case by a predetermined distance. An inner case in which a storage space is formed to the inside;
an outer case in which the inner case is accommodated, the inner surface of which is spaced apart from the outer surface of the inner case by a predetermined distance;
a vacuum space unit provided between the inner case and the outer case, the inside of which is sealed and maintained in a vacuum state to perform an insulating action between the inner case and the outer case;
a radiation blocking film disposed inside the vacuum space to be spaced apart from the inner case and the outer case, and provided with at least one radiation blocking film to reduce radiative heat transfer through the vacuum space; And
a gap maintaining member limiting movement of the radiation blocking film between the inner case and the outer case;
The refrigerator, characterized in that the gap maintaining member contacts the radiation blocking film to maintain a distance between the inner case and the outer case and the radiation blocking film. According to claim 9,
The refrigerator, characterized in that the gap maintaining member is provided in plurality, connected to each other and made of an integral set. According to claim 10,
The refrigerator, characterized in that the plurality of space maintaining members are connected to each other by a connecting rib. According to claim 11,
Refrigerator, characterized in that the height of the connecting rib is formed smaller than the height of the gap maintaining member. An inner case in which a storage space is formed to the inside;
an outer case in which the inner case is accommodated, the inner surface of which is spaced apart from the outer surface of the inner case by a predetermined distance;
a vacuum space unit provided between the inner case and the outer case, the inside of which is sealed and maintained in a vacuum state to perform an insulating action between the inner case and the outer case;
a support structure capable of maintaining a gap between the inner case and the outer case without being deformed by an external impact while a vacuum space is formed between the inner case and the outer case;
a radiation blocking film disposed inside the vacuum space to be spaced apart from the inner case and the outer case, and provided with at least one radiation blocking film to reduce radiative heat transfer through the vacuum space; And
a gap maintaining member limiting movement of the radiation blocking film between the inner case and the outer case;
The support structure includes a spacer for supporting to maintain a distance between the inner case and the outer case,
The radiation blocking film is formed with a through hole through which the spacer passes,
Refrigerator, characterized in that the diameter of the through hole of the radiation blocking film is larger than the diameter of the spacer and smaller than the outer diameter of the space maintaining member. delete According to claim 13,
The space maintaining member is a refrigerator provided in the spacer. According to claim 15,
The refrigerator, characterized in that the gap maintaining member is integrally formed with the spacer. According to claim 15,
The refrigerator, characterized in that at least a part of the gap maintaining member is disposed on the outer circumferential surface of the spacer. An inner case in which a storage space is formed to the inside;
an outer case in which the inner case is accommodated, the inner surface of which is spaced apart from the outer surface of the inner case by a predetermined distance;
a vacuum space unit provided between the inner case and the outer case, the inside of which is sealed and maintained in a vacuum state to perform an insulating action between the inner case and the outer case;
a support structure capable of maintaining a gap between the inner case and the outer case without being deformed by an external impact while a vacuum space is formed between the inner case and the outer case;
a radiation blocking film disposed inside the vacuum space to be spaced apart from the inner case and the outer case, and provided with at least one radiation blocking film to reduce radiative heat transfer through the vacuum space; And
a gap maintaining member limiting movement of the radiation blocking film between the inner case and the outer case;
The support structure includes a spacer for supporting to maintain a distance between the inner case and the outer case,
The radiation blocking film includes a through hole through which the spacer passes;
The outer diameter of the spacer maintaining member is larger than the outer diameter of the spacer, or the diameter of the through hole of the radiation blocking film is the outer diameter of the spacer so that heat transfer by conduction can be reduced when the radiation blocking film contacts the spacer. A refrigerator characterized in that it is larger.

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