KR20190075871A - A refrigerator comprising a vacuum space - Google Patents

Abstract

The present invention relates to a refrigerator including a vacuum space part and, more specifically, to a refrigerator capable of improving the insulation performance of a refrigerator through a vacuum space part formed between external and internal cases forming a body. The refrigerator including a vacuum space includes a body having a storage space in which a predetermined material can be stored. The body includes: an internal case in which the storage space is formed; an external case in which the internal case is placed and whose inner surface is placed at a predetermined interval from the outer surface of the internal case; a vacuum space part placed between the internal and external cases, and keeping the inside sealed in a vacuum state to insulate the internal and external cases; and at least one radiant heat shield film placed in the vacuum space part at a distance from the internal and external cases to reduce radiant heat delivered through the vacuum space part.

Description

[0001] The present invention relates to a refrigerator having a vacuum space,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a refrigerator having a vacuum space, and more particularly, to a refrigerator capable of improving a heat insulation function of a refrigerator by forming a vacuum space between an outer case and an inner case.

A refrigerator is an electrical appliance that can store refrigerated or frozen storage by keeping the temperature of the storage room at the image or sub-zero temperature using a refrigerant cycle.

A general structure of a refrigerator includes a main body in which a storage space for storing a stored product is formed, and a door that is rotatably disposed or slidably disposed in the main body and opens and closes the storage space.

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

Such an insulation prevents the temperature inside the storage space from being affected by the external temperature.

As the heat insulating material, a urethane foam material is often used, and a liquid urethane is injected into a space between the inner case and the outer case to perform foam molding.

However, in order to realize the thermal insulation effect by using the heat insulating material, the thickness of the heat insulating material must be secured to some extent, which means that the thickness of the heat insulating material is correspondingly increased. Naturally, the wall thickness between the inner case and the outer case becomes thick, .

However, in recent years, there has been a tendency for the refrigerator to become compact, and a need has arisen for a structure capable of decreasing the size of the internal storage space, while reducing the size of the internal storage space.

SUMMARY OF THE INVENTION The present invention is conceived to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a refrigerator capable of increasing a heat insulation effect by forming a vacuum space between an inner case and an outer case, have.

Another object of the present invention is to provide a refrigerator having a support structure in which a vacuum space is formed between an inner case and an outer case so that the inner case and the outer case are not deformed by an external impact but can maintain the gap.

Another object of the present invention is to provide a refrigerator having a structure capable of minimizing radiative heat transfer through a vacuum space formed between an inner case and an outer case

According to an aspect of the present invention, there is provided a refrigerator including a vacuum space unit including a main body having a storage space in which a predetermined storage can be received, wherein the main body includes an inner case Wow; An outer case in which the inner case is accommodated and the inner surface of the outer case 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 vacuum space part being sealed and kept in a vacuum state to perform a thermal insulation action between the inner case and the outer case; And at least one radiation blocking film disposed inside the vacuum chamber 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 inner case and the outer case facing each other; A second support plate disposed on at least one of opposite surfaces of the inner case and the outer case facing each other and facing the first support plate; And a plurality of spacers which are fixed to the first support plate and support the inner case and the outer case so as to maintain a gap therebetween.

In addition, the radiation shielding film preferably includes a plurality of through holes formed to allow the plurality of spacers to pass therethrough.

It is preferable that at least a part of the plurality of spacers is provided with a plurality of spacing members each for maintaining a gap between the first support plate and the radiation shielding film and a gap between the radiation shielding film and the second support plate.

It is preferable that the radiation shielding film is provided in parallel with two radiation shielding films being spaced apart from each other in the vacuum space, and the plurality of space maintaining members are provided on one surface and the other surface of the radiation shielding film, respectively.

It is preferable that the plurality of spacing members are formed in the shape of a boss having a predetermined height and disposed on the 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 gap holding member.

Preferably, the plurality of spacing members disposed between the pair of radiation blocking films are connected to each other by a connecting rib so as to be integrally formed.

And a plurality of spacing members disposed between the radiation shielding film and the second support plate are connected to each other by a connecting rib to form a single set.

And a plurality of spacing members disposed between the first support plate and the radiation blocking film disposed thereon are integrally formed with the spacer.

It is preferable that the gap holding member is formed so that its inner surface is inclined so as to minimize contact with the spacer and minimize heat transfer by conduction.

And the connection ribs of the integrally formed spacer member may not be in contact with the spacer, the radiation blocking film, and the second support plate.

It is preferable that 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 usual heat insulating material, is formed between the inner case and the outer case, and the heat transfer between the inner case and the outer case is suppressed by the vacuum space portion. Action.

Since the heat insulating effect in a vacuum state is remarkably superior to the heat insulating effect by a usual heat insulating material, the refrigerator according to the present invention has an advantage that it has better heat insulation than a conventional refrigerator.

On the other hand, in the case of the vacuum space part, heat is maintained if it is maintained in a vacuum state regardless of its thickness (the distance between the inner case and the outer case). However, in the case of ordinary heat insulation material, the thickness of the heat insulation material must be increased to increase the heat insulation effect. The increase in thickness will lead to an increase in the size of the refrigerator.

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

According to the refrigerator of the present invention, a radiation shielding film for preventing radiant heat transfer is provided between the inner case and the outer case, thereby minimizing heat transfer by conduction or convection as well as radiation, .

Further, according to the refrigerator of the present invention, a vacuum space is formed between the inner case and the outer case, and the inner case and the outer case can be maintained without being deformed by an external impact.

It is possible to easily assemble the components such as the inner case, the outer case, and at least one radiation shielding film and the spacer between the inner case and the vacuum case, thereby improving the workability

1 is a perspective view showing an example of a refrigerator according to the present invention.
2 is a partially cutaway perspective view showing an inner case, an outer case, and various parts therebetween in a refrigerator according to the present invention.
Fig. 3 is a perspective view showing the assembly of the first support plate and the spacer and the second support plate in Fig. 2;
4 is a perspective view showing that a spacing member is provided on a part of a plurality of spacers formed on the first support plate of Fig.
5 is a perspective view showing the radiation shielding film of FIG.
6 is a perspective view showing a set of spacing members formed integrally with a plurality of spacing members.
Fig. 7 is a perspective view showing that one spacer is provided with two spacing members.
8 is a cross-sectional view showing that one spacer is provided with one spacer member and two spacer members.
9 is a perspective view seen from above to show a relative positional relationship with adjacent spacers of the spacer member set.
10 is a partially cutaway sectional view showing an inner case and 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 cutaway perspective view showing an inner case, an outer case, and various components therebetween in a refrigerator according to the present invention.

1, a refrigerator according to the present invention includes a main body 1 having a storage chamber, a first door 4 rotatably disposed on the left side of the main body 1, And a second door 5 rotatably provided on the right side of the second door 5.

Here, the first door 4 functions to open and close the freezing room in the storage room, and the second door 5 functions to open and close the refrigerator room in the storage room. However, the present invention is not limited to the refrigerator having such a structure.

That is, the refrigerator of FIG. 1 is a so-called side-by-side type refrigerator in which a freezing chamber is disposed on the left side and a refrigerating chamber is disposed on the right side. In the refrigerator of the present invention, It can be applied to refrigerator. It goes without saying that the present invention may be applied to a refrigerator including a refrigerator or a freezer only, and a refrigerator including a separate refrigerator in addition to a refrigerator and a freezer.

In the structure of the main body 1, an inner case 110 in which the storage space is formed 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 vacuum space part (130) being hermetically sealed and kept in a vacuum state to perform a thermal insulation action between the inner case and the outer case; And at least one radiation shielding film 260 disposed inside the vacuum space part 130 and spaced apart from the inner case and the outer case to reduce radiation heat transfer through the vacuum space part.

The outer case 120 and the inner case 110 are spaced apart from each other. In this space, no separate heat insulating material is disposed, but only a vacuum state is maintained to perform a heat insulating action.

That is, a vacuum space part 130 is formed between the outer case 120 and the inner case 110 so that the medium that mediates the heat transfer between the inner case 110 and the outer case 120 is removed .

Thus, the heat of the hot air outside the outer case 120 can be prevented from being transmitted to the inner case 110 and the inside thereof.

In FIG. 1, the inner case 110, the outer case 120, and the spacers 150 are illustrated with the first and second supporting plates 160 and 170 omitted.

The vacuum space 130 may include at least one radiation shielding film 260 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 part 130 formed between the outer case 120 and the inner case 110, the at least one radiation blocking film 260 may be formed in the outer case 120 and the inner case 110, And the case 110, respectively.

The radiation shielding film 260 serves as a metal thin film having a low emissivity to prevent radiation heat transfer.

BACKGROUND ART [0002] Conventionally, in the case of a thermos bottle or the like using vacuum insulation, there has been known a technique for preventing radiation heat transfer by plating silver or copper on the inner surface.

However, it is much better to arrange the radiation shielding film in the vacuum space than in the case of plating or coating metal in the vacuum space.

Therefore, in the present invention, the radiation shielding film 210 made of a metal thin film is disposed in the vacuum space part 130 so as 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.

The cost of aluminum is lower than that of silver or copper, so the manufacturing cost is low and the emissivity is not significantly different.

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

The radiation shielding film 210 must be disposed so as to be spaced apart from the outer case 120 and the inner case 110, respectively, so that the radiation shielding film 210 must have sufficient strength to withstand deformation due to its own weight or external impact.

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

A plurality of spacers 130 for maintaining a gap between the inner case 110 and the outer case 120 so as to maintain the shape of the vacuum space part 130 between the inner case 110 and the outer case 120, it is preferable that a spacer 150 is disposed between the inner case 110 and the outer case 120. A plurality of spacers 150 are disposed and supported to maintain a distance between the inner case 110 and the outer case 120.

A plurality of spacers 150 may be fixed between the inner case 110 and the outer case 120. The plurality of spacers 150 may be fixed to the first support plate 160, .

The first support plate 160 may be disposed on one of surfaces of the inner case 110 and the outer case 120 facing each other.

2, the first support plate 160 is disposed to be in contact with 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 main body 1 may further include a second support plate 170 disposed on one surface of the inner case 110 and the outer case 120 facing each other and facing the first support plate desirable.

2, the second support plate 170 is disposed to be in contact with the inner surface of the outer case 120, and the plurality of spacers 150 are fixedly disposed on the first support plate 160, 1 to support the gap between the 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, So that the gap between the inner case 110 and the outer case 120 is maintained.

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

In the absence of the second support plate 170, the ends of the plurality of spacers 150 may be arranged to directly contact the inner surface of the outer case 120.

In FIG. 1, the first supporting plate 160 and the second supporting plate 170 are omitted for the sake of convenience.

The second support plate 170 may include a plurality of grooves 175 formed in the inner surface thereof such that the ends of the plurality of spaces 150 are inserted into the second support plate 170 desirable.

The plurality of grooves 175 formed in the second support plate 170 are spaced apart from the spacers 150 when the second support plate 170 is placed in a plurality of spaces 150 formed integrally with the first support plate 160 So that the relative position is fixed.

The inner case 110 and the outer case 120 constituting the main body 1 have to be formed with a vacuum space 130 therebetween. For example, the inner case 110, which forms one side of the main body 1, 110 and the outer case 120 should be formed integrally with each other to have a size corresponding to the size of one side thereof.

The first support plate 160 and the second support plate 170 produce a unit body having a predetermined size smaller than that of the inner case 110 and the outer case 120, A plurality of sets assembled by fitting the second support plate 170 with the spacers 150 interposed therebetween can 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 to have the same size as the inner case 110 and the outer case 120 and assembled.

FIG. 2 shows only a part of the inner case 110 and the outer case 120 in a stacked structure in order to illustrate the assembly structure between the inner case 110 and the outer case 120. FIG.

Therefore, it will be understood that 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 in a superimposed manner.

Next, the structure and assembly method of the first support plate, the spacers, spacing members, the radiation shielding film, and the second support plate will be described in more detail with reference to FIGS. 3 to 5. FIG.

FIG. 3 is a perspective view showing the assembling of the first support plate and the spacer and the second support plate, FIG. 4 is a perspective view showing that a space holding member is provided in a part of a plurality of spacers formed on the first support plate of FIG. 2, Is a perspective view showing the radiation shielding film of Fig.

As shown in the figure, the plurality of spacers 150 are preferably arranged in a plurality of rows in the vertical and horizontal directions.

The plurality of spacers 150 integrally formed on the first support plate 160 are arranged in rows in the vertical direction and the horizontal direction as shown in FIG. 3 and FIG.

Since the plurality of spacers 150 are arranged in a plurality of rows in this way, it is easy to design and manufacture, as well as easy to assemble, and the strength to withstand vacuum pressure or external impact in the vacuum space part 130 after assembly It can be bigger.

It is preferable that the ends of the plurality of spacers 150 have a convex curved surface shape.

Since the ends of the spacers 150 are formed in a convex curved shape, the assembling work can be facilitated since the end portions of the spacers 150 are easily seated in the groove portions 175 formed in the second support plate 170 during assembly .

It is further 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, the positioning of the second support plate 170 can be facilitated during assembly, It can be fixed so as not to move in a direction parallel to the surface.

The spacer 150, the first support plate 160, and the second support plate 170 may be made of any one of metal, ceramics, 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 and second support plates 160 and 170 are disposed in the inner case 110, And the outer case 120, respectively.

Therefore, the heat transfer from the outside of the outer case 120 to the inside of the inner case 110 must be minimized, and the outer heat is conducted through the second supporting plate 170, the spacer 150 and the first supporting plate 160 .

The spacer 150 and the first support plate 160 and the second support plate 170 which are provided to be in contact with the inner case 110 and the outer case 120 are made of metal, , And reinforced plastic.

Among them, it is preferable to fabricate the spacer or the like with a material having a low thermal conductivity and a high strength. Therefore, it is more preferable to fabricate the spacer or the like from the material, rather than a metal having a relatively high thermal conductivity but a relatively high thermal conductivity.

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

The plurality of through holes 215 are formed at positions corresponding to the positions of the spacers 150 because the plurality of spacers 150 pass through.

Since the plurality of spacers 150 are arranged in a plurality of rows in the up, down, left, and right directions, the plurality of through holes 215 are also arranged in a plurality of columns in the vertical and horizontal directions correspondingly.

At least a part of the plurality of spacers 150 may be provided with a plurality of spacings 150 in order to maintain a gap between the first support plate 160 and the radiation shielding film 210 and between the radiation shielding film 210 and the second support plate 170, It is preferable that the holding member 250 is provided.

The plurality of spacer members 250 may be provided in each of the plurality of spacers 150. However, the radiation shielding film 210 made of a metal thin film and having a predetermined thickness may vary depending on the material characteristics, It is preferable that the plurality of spacing members 250 are arranged in only a part of the plurality of spacers 150 because they are not easily sagged.

In addition, when all the spacers 150 are provided with the spacing member 250, there is a high possibility that the heat is conducted through the spacers 150 and the spacing member 250, so that only a part of the spacers 150 It is more preferable that the gap holding member 250 is provided.

The radiation shielding film is provided in parallel with the radiation shielding films 210 and 220 being spaced apart from each other in the vacuum space part 130. The plurality of space holding members 250 are provided on the radiation shielding films 210 and 220, It is preferable that they are provided on one surface and the other surface, respectively.

2, the vacuum chamber 130 formed between the inner case 110 and the outer case 120 includes a first support plate 160, a second support plate 170, A spacer 150 and two radiation blocking films 210 and 220 are 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 vertically and horizontally.

4, the gap holding member 250 is arranged to be fitted in a part of the plurality of spacers 150 formed on the first support plate 160. As shown in FIG.

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

Alternatively, the plurality of spacing members 250 may be formed integrally with the spacers 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 gap holding member 260 (see FIG. 7) disposed between the two radiation shielding films 210 and 220, since the radiation shielding film 210 must be able to fit into the plurality of spacers 150, The spacer 150 may be assembled in such a manner that it is sandwiched by the spacer 150.

For convenience, it will be appreciated that in FIG. 2 only the spacing members are disposed between the first support plate 160 and the first radiation blocking layer 210 disposed thereon.

It is preferable that the diameter of the through hole 215 of the radiation blocking film 210 or 220 is larger than the diameter of the spacer 150 and smaller than the outer diameter of the gap holding member 250.

The spacing member 250 is larger than or equal to the diameter of the spacer 150 because it is in the form of a boss, that is, a hollow cylinder so as to fit on the outer circumferential surface of the spacer 150.

Since the spacer 150 passes through the through hole 215, the diameter of the through hole 215 should be equal to or larger than the diameter of the spacer 150.

Therefore, if the diameter of the through hole 215 is formed to be larger than the diameter of the spacer 150 and smaller than the outer diameter of the gap holding member 250, the spacer 150 can pass through the through hole 215 The radiation blocking film 210 may be held on the upper surface of the gap holding member 250.

The diameter of the through hole 215 is preferably equal to or larger than the outer diameter of the spacer 150 because the radiation blocking film 210 is most preferably used to prevent heat transfer due to conduction when the spacer 150 is not in contact with the spacer 150. [ The bigger is better.

5, the first radiation blocking layer 210 may be formed of a plurality of the plurality of spacers 150, such as the first radiation blocking layer 210 shown in FIG. 5, It is understood that a through hole is formed.

The plurality of spacing members 260 disposed between the pair of radiation shielding films 210 and 220 may be connected to each other by a connecting rib 264 to form a single set.

The plurality of spacing members 270 disposed between the second radiation blocking film 220 and the second supporting plate 170 may be connected to each other by a connecting rib 274 to form an integral set.

6 shows a first set of spacing members 260 that are connected together to form an integral set, and in FIG. 7 there are shown two sets of spacing members 260 and 270, And FIG. 8 is a cross-sectional view showing that one spacer 150 is provided with one gap retaining member 250 and two gap retaining member sets 260 and 270.

The first set of spacing members 260 includes a plurality of spacing members 262 arranged in rows up or down or left and right and connection ribs 264 provided on the sides of the spacing member .

As shown in FIG. 6, the first set of spacing members 260 are connected to each other by twelve connecting ribs 264 at one side portion of the nine spacing members.

The number of spacing members and the connecting ribs constituting one set of spacing members may be different from those shown in FIG. For example, sixteen spacing members may be integrally formed by being connected to each other by twenty four connection ribs.

A plurality of spacing members 260 disposed between the pair of radiation blocking films 210 and 220 and a plurality of spacing members 260 disposed between the second radiation blocking layer 220 and the second supporting plate 170, The spacing member 270 may be formed separately from the spacing member 250 disposed between the first support plate 160 and the first radiation blocking layer 210.

However, it is most preferable to assemble the plurality of spacing members 250 in combination with the first spacing member set 260 and the second spacing member set 270 as described above.

The spacing members 262 and 272 may be formed so that their inner surfaces are inclined so as to minimize contact with the spacers 150 and minimize heat transfer by conduction.

8, the inner surface of the gap holding member 272 of the gap holding member 262 of the first gap holding member set 260 and the gap holding member 272 of the second gap holding member 270 is set to be lower So that the diameter becomes smaller.

Therefore, since the portion of the gap holding member 262, 272 contacting the spacer 150 is only the lowermost portion of the inner surface of the gap holding member 262, 272, the distance from the spacer 150 to the gap holding member 262, The amount of heat conduction conducted to the heat sinks 262 and 272 can be minimized.

In FIG. 8, in the case of the gap holding member 250 located below one of the three gap holding members, the inner side surface is formed so as to be inclined so that its outer diameter gradually decreases as its outer surface goes downward.

This is for minimizing the area of the portion where the gap holding member 250 is in contact with the first support plate 160.

However, the gap holding member 250 may also be formed so as to be inclined so that its inner diameter decreases gradually as its inner surface is lowered.

Also, the inclined direction may be inclined so that the diameter gradually decreases as the inner surface of the gap holding member 250 is moved upward.

In addition, the inclination direction of the other spacing members 262 and 272 can be inclined not only downward but also upward.

It is also possible to combine the three spacing members 250, 262, 272, which are formed differently from each other in the oblique direction.

The connection ribs 264 and 274 of the integrally formed spacer members 260 and 270 are not contacted with the spacer 150, the radiation blocking films 210 and 220, and the second support plate 170 .

7, the connecting ribs 264 and 274 are formed to be smaller than the height of the gap retaining members 262 and 272 and are connected to the middle height portions of the gap retaining members 262 and 272, respectively.

The upper or lower surfaces of the spacing members 262 and 272 are in contact with the radiation blocking films 210 and 220 or the second supporting plate 170 so that the connecting ribs 264 and 274 are not in contact with the radiation blocking films 210 and 220 or the second supporting plate 170 So that heat transfer due to conduction can be minimized.

Also, as shown in FIG. 9, it is preferable that the connection ribs 264 and 274 of the gap holding member sets 260 and 270 are disposed so as not to be in contact with other spacers 150 disposed around.

By forming the connection ribs 264 and 274 so that they do not contact with other spacers 150 around them, it is possible not only to assemble the spacer members 260 and 270 into the plurality of spacers 150, Thereby minimizing heat transfer.

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

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

First, as shown in FIG. 4, spacing members 250 made of separate components are inserted into a part of a plurality of spacers 150 formed integrally with the first support plate 160.

Then, one of the radiation blocking films 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 surface of the gap holding members 250.

Then, the plurality of spacers 150 are sandwiched by the set of first spacing members 260 to be seated on the radiation blocking film 210.

Again, the second radiation blocking film 220 is sandwiched between the plurality of spacers 150 so as to pass through the plurality of through holes.

And the second gap holding member 270 is sandwiched therebetween so as to be seated on the radiation shielding 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 having the thus assembled radiation shielding film is inserted into the vacuum space part 130 between the inner case 110 and the outer case 120.

Since the spacer set assembly requires a plurality of spaces to fill the vacuum space part 130, assembling of the refrigerator body can be completed by continuously inserting the appropriate values into the vacuum space part 130.

According to the refrigerator of the present invention, it is very easy to insert and assemble a plurality of spacers into the vacuum space between the inner case and the outer case, and it is possible to have a structure that can withstand a sufficient vacuum pressure, It is possible to minimize the transfer of heat due to radiation through the portion, and thus the heat insulating performance is excellent.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, Changes will be possible.

1: Body
4, 5: Door
110: inner case
120: outer case
130: Vacuum space part
150: Spacer
160: first support plate
170: second support plate
175: Groove
210: first radiation blocking film
215: Through hole
220: second radiation blocking film
250:
260: first interval holding member set
262:
264: connection rib
270: second gap holding member set
272:
274: connection rib

Claims (20)

A body having a storage space in which a predetermined storage can be accommodated,
The main body includes:
An inner case in which the storage space is formed inside;
An outer case in which the inner case is accommodated and the inner surface of the outer case 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 vacuum space part being sealed and kept in a vacuum state to perform a thermal insulation action between the inner case and the outer case;
A support structure having a vacuum space formed between the inner case and the outer case so that the inner case and the outer case are not deformed by an external impact and can maintain the gap;
A radiation shielding film disposed at least one of the inner space and the outer space to reduce radiative heat transfer through the vacuum space part; And
And a plurality of gap holding members provided on the support structure to maintain a gap between the inner case and the outer case and the radiation blocking film,
Wherein the support structure includes a plurality of spacers for supporting an interval between the inner case and the outer case,
Wherein the gap holding member is provided to support one side of the radiation shielding film and is located between the inner case or the outer case and the radiation shielding film. The method according to claim 1,
Wherein the support structure is formed to have the same size as the size of the inner case and the outer case that form one side of the main body, or a plurality of the small sizes are disposed between the inner case and the outer case Refrigerator. The method according to claim 1,
Wherein the spacing member is coupled to the support structure. The method according to claim 1,
Wherein the gap holding member is formed integrally with the support structure. The method according to claim 1,
Wherein the support structure and the radiation blocking film are assembled into a set, and the set is disposed between the inner case and the outer case. The method according to claim 1,
Wherein the support structure and the spacing member are assembled into a set, and the set is disposed between the inner case and the outer case. The method according to claim 1,
Wherein the spacing member is formed to be sloped to reduce contact with the support structure to reduce heat transfer. The method according to claim 1,
Wherein the upper surface or the lower surface of the gap holding member is in contact with one surface of the radiation blocking film. The method according to claim 1,
Wherein the support structure includes a first support plate provided between the inner case and the outer case. 10. The method of claim 9,
Wherein the plurality of spacers are fixedly disposed on the first support plate. The method according to claim 1,
Wherein the spacer is coupled to the spacer. The method according to claim 1,
Wherein the spacer is integrally formed with the spacer. The method according to claim 1,
Wherein the spacer and the spacing member are assembled in a set, and the set is disposed between the inner case and the outer case. The method according to claim 1,
Wherein the spacer and the radiation blocking film are assembled into a set, and the set is disposed between the inner case and the outer case. The method according to claim 1,
Wherein the spacing member is provided on part of the plurality of spacers to reduce heat transfer through the spacers and spacing members. The method according to claim 1,
Wherein a plurality of the gap holding members are provided and connected to each other to form a single set. 17. The method of claim 16,
Wherein the plurality of spacing members are connected to each other by a connecting rib. 18. The method of claim 17,
And the height of the connecting rib is smaller than the height of the gap holding member. The method according to claim 1,
Wherein the spacer is formed in a boss shape having a predetermined height and is provided on an outer circumferential surface of the spacer. The method according to claim 1,
And the outer diameter of the gap holding member is larger than the outer diameter of the spacer.

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