KR20200111146A - A refrigerator comprising a vacuum space - Google Patents

Abstract

The present invention relates to a refrigerator having a vacuum space, and more specifically, to a refrigerator capable of improving a heat insulation function of the refrigerator by forming the vacuum space between an outer case and an inner case constituting a main body. The refrigerator having the vacuum space according to the present invention includes a main body having a storage space in which a predetermined storage object can be accommodated. The main body includes: the inner case in which the storage space is formed inside; an outer case accommodating the inner case and disposed with the inner surface spaced apart from the outer surface of the inner case by a predetermined distance; the vacuum space provided between the inner case and the outer case, sealed inside and maintained in a vacuum state to provide an insulating effect between the inner case and the outer case; and at least one radiation shielding film disposed in the vacuum space to be spaced apart from the inner case and the outer case to reduce radiant 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 heat 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 electric product that can store or refrigerate storage by maintaining the temperature of a storage room at an image or sub-zero temperature using a refrigerant cycle.

A general configuration of a refrigerator includes a main body in which a storage space for storing stored items is formed, and a door disposed rotatably or slidably 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 an insulating material is disposed between the inner case and the outer case.

The heat insulator prevents the temperature in the storage space from being affected by the external temperature.

Urethane foam is widely used as the heat insulating material, and a liquid urethane is injected into the space between the inner case and the outer case to foam-molded.

However, in order to realize the insulation effect by 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, and naturally the wall thickness between the inner case and the outer case becomes thicker, so that the size of the refrigerator becomes that much. It gets bigger.

However, in recent years, the tendency of refrigerators to become more compact has emerged, and there has been a need for a structure in which the volume of the internal storage space can be increased while the external size is reduced than before.

US patent publication US2000882 (1935.05.07)

US patent publication US2044600 (1936.06.16)

The present invention has been conceived to solve the above-described conventional problem, and provides a refrigerator capable of increasing the heat insulation effect by forming a vacuum space between the inner case and the outer case, while minimizing the external volume. have.

In addition, an object is to provide a refrigerator having a support structure capable of maintaining the space between the inner case and the outer case without being deformed by an external shock, even though 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 that can minimize radiant heat transfer through the vacuum space formed between the inner case and the outer case.

A refrigerator having a vacuum space part 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, wherein the main body is an inner case in which the storage space is formed. Wow; An outer case accommodating the inner case, the inner surface being 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 adiabatic action between the inner case and the outer case; And at least one radiation shielding film disposed inside the vacuum space to be spaced apart from the inner case and the outer case to reduce radiant heat transfer through the vacuum space.

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

In addition, it is preferable that the radiation shielding layer includes a plurality of through-holes formed through the plurality of spacers.

It is preferable that at least a portion of the plurality of spacers are provided with a plurality of spacing members, respectively, to maintain a spacing between the first support plate and the radiation shielding film and between the radiation shielding film and the second support plate.

It is preferable that 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 maintaining members are provided on one side and the other side of the radiation blocking film, respectively.

It is preferable that the plurality of spacing members are formed in a boss shape 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 shielding film is larger than the diameter of the spacer and smaller than the outer diameter of the spacing member.

It is preferable that the plurality of spacing members disposed between the pair of radiation shielding films are connected to each other by connection ribs to form an integral set.

It is preferable that the 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 an integral set.

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

It is preferable that the space maintaining member has an inclined inner surface in order to minimize contact with the spacer to minimize heat transfer due to conduction.

It is preferable that the connecting rib of the integrally formed space maintaining member set is made so as not to come into contact with the spacer, the radiation shielding layer, and the second support plate.

It is preferable that the radiation shielding film is made of an aluminum thin film.

It is preferable that the thickness of the radiation shielding layer is 0.05 to 0.30mm.

According to the refrigerator of the present invention described above of the present invention, a vacuum space portion is formed between the inner case and the outer case, rather than a normal heat insulating material, and heat transfer between the inner case and the outer case is suppressed by the vacuum space portion. The action takes place.

Since the heat insulation effect in a vacuum state is remarkably superior to the heat insulation effect of a conventional heat insulation material, the refrigerator according to the present invention has the advantage of excellent heat insulation than the conventional refrigerator.

On the other hand, in the case of the vacuum space, heat insulation is achieved if only the vacuum state is maintained regardless of its thickness (the gap between the inner case and the outer case).However, in the case of a general heat insulating material, the thickness of the heat insulating material must be increased to increase the heat insulation effect. The increase in thickness leads to an increase in the size of the refrigerator.

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

Further, according to the refrigerator of the present invention, a radiation shielding film that blocks radiant heat transfer between the inner case and the outer case can minimize not only heat transfer due to conduction or convection, but also heat transfer due to radiation, so that the insulation effect is very excellent. .

In addition, according to the refrigerator of the present invention, even when a vacuum space is formed between the inner case and the outer case, the inner case and the outer case are not deformed by an external shock, and the gap can be maintained.

By providing a structure that can easily assemble parts such as an inner case and an outer case that form the vacuum space, and at least one radiation shield and spacer therebetween, workability is improved.

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.
3 is a perspective view illustrating assembly of a first support plate, a spacer, and a second support plate in FIG. 2.
FIG. 4 is a perspective view illustrating that some of a plurality of spacers formed on the first support plate of FIG. 2 are provided with a gap maintaining member.
5 is a perspective view showing the radiation shield of FIG. 2.
6 is a perspective view showing a set of space keeping members integrally formed by connecting a plurality of space keeping members.
7 is a perspective view showing that one spacer is provided with two sets of spacing members.
Fig. 8 is a cross-sectional view showing that one spacer is provided with one space holding member and two sets of space holding members.
9 is a perspective view as viewed from above to show a relative positional relationship with an adjacent spacer of a set of spacing members.
10 is a partially cut-away cross-sectional view showing the inner case, the 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 provided to be rotatable on the right side of.

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

That is, the refrigerator of FIG. 1 is a so-called side-by-side type refrigerator in which the freezer compartment is disposed on the left side and the refrigerator compartment is disposed on the right side. However, the refrigerator of the present invention is of all types regardless of how the refrigerator compartment and the freezer compartment are arranged. Can be applied to refrigerators. In addition, of course, it may be applied to a refrigerator provided with 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, an inner case 110 in which the storage space is formed inside; An outer case 120 in which the inner case is accommodated and disposed to be spaced apart from the inner case by a predetermined distance; A vacuum space unit 130 provided between the inner case and the outer case, the inner case being sealed and maintained in a vacuum state to perform an adiabatic action between the inner case and the outer case; The vacuum space 130 includes at least one radiation shielding film 210 disposed to be spaced apart from the inner case and the outer case to reduce radiant 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 insulating material is not disposed in this space, but is only maintained in a vacuum state to perform heat insulation.

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

Accordingly, it is possible to prevent heat of 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 at least one radiation shielding film 210 is disposed in 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 due to radiation in the vacuum space 130 formed between the outer case 120 and the inner case 110, the at least one radiation shielding layer 210 is provided with the outer case 120 and the inner case. It is arranged to be spaced apart from the case 110, respectively.

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

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

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

Accordingly, in the present invention, the radiation shielding film 210 made of a metal thin film is disposed in the vacuum space 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.

Since aluminum is cheaper than silver or copper, the manufacturing cost is low and the emissivity is not significantly different.

In addition, the thickness of the radiation shielding film 210 is preferably 0.05 ~ 0.30mm.

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

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

A plurality of spacers allowing the vacuum space 130 between the inner case 110 and the outer case 120 to maintain a gap between the inner case 110 and the outer case 120 in order to maintain the shape It is preferable that the (spacer) 150 is disposed between the inner case 110 and the outer case 120. The plurality of spacers 150 are disposed and supported so as to maintain a gap between the inner case 110 and the outer case 120.

The plurality of spacers 150 should 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 provided with the first support plate 160 Is placed in

The first support plate 160 may be provided to contact any one of the surfaces of the inner case 110 and the outer case 120 that face 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 main body 1 further includes a second support plate 170 provided on the 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 It is supported so as 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 Eventually, the inner case 110 and the outer case 120 are supported so as to maintain the gap.

In the case of the embodiment shown in FIG. 2, the first support plate 160 and the second support plate 170 are disposed to be spaced apart by a predetermined distance, but the first support plate ( Only 160 may be provided between the inner case 110 and the outer case 120.

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

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

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 so that the ends of the plurality of spaces 150 are inserted into the inner surface thereof. desirable.

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

Since the inner case 110 and the outer case 120 constituting the main body 1 need to form a vacuum space 130 therebetween, for example, an inner case forming one side of the main body 1 ( 110) and the outer case 120 should be formed integrally with each other so as 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 assembled by butting the second support plate 170 with the spacer 150 interposed therebetween may be fabricated and assembled by inserting it between the inner case 110 and the outer case 120.

Of course, the first support plate 160 and the second support plate 170 may be fabricated and assembled to have 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 in a stacked structure.

Therefore, it will be understood that the assembly structure from the first support plate 160 to the second support plate 170 is assembled and inserted between the inner case 110 and the outer case 120 so as to overlap.

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

FIG. 3 is a perspective view illustrating assembling a first support plate, a spacer, and a second support plate, and FIG. 4 is a perspective view illustrating that some of the spacers formed on the first support plate of FIG. 2 are provided with a spacing member, and FIG. 5 Is a perspective view showing the radiation shielding film of FIG. 2.

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

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

Since the plurality of spacers 150 are arranged in a plurality of rows in this way, it is not only easy to design and manufacture, but also to assemble, and the strength to withstand vacuum pressure or external shock in the vacuum space 130 after assembly is increased. It can be bigger.

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

Since the end of the spacer 150 is formed in a convex curved shape, the end of each spacer 150 is easily seated in the groove 175 formed in the second support plate 170 when assembling, making it much easier to assemble. .

In addition, it is more preferable that the plurality of groove portions 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, positioning is easy during assembly and the second support plate 170 is 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 the inner case 110 And the outer case 120 respectively contact.

Therefore, it is necessary to minimize heat transfer from the outside of the outer case 120 to the inside of the inner case 110, and external heat is conducted through the second support plate 170, the spacer 150, and the first support plate 160. I can.

Thus, the spacer 150, the first support plate 160, and the second support plate 170, which are provided to contact between the inner case 110 and the outer case 120, are metal and 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 fabricate the spacer or the like from a material having low thermal conductivity and excellent strength, it is more preferable to fabricate the spacer or the like from a metal having excellent strength but relatively high thermal conductivity among the materials.

The radiation blocking film 210 includes a plurality of through holes 215 formed to pass the plurality of spacers 150 as shown in FIG. 5.

Since the plurality of through holes 215 penetrate through the plurality of spacers 150, they are formed at positions corresponding to the positions of each spacer 150.

Since the plurality of spacers 150 are arranged in a plurality of rows vertically and horizontally, the plurality of through-holes 215 are also arranged in a plurality of rows vertically and horizontally according to the plurality of spacers 150.

At least a portion of the plurality of spacers 150 is provided with a plurality of spaces 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 space-holding members 250 may be provided on each of the plurality of spacers 150, but the radiation shielding film 210 made of a metal thin film and having a predetermined thickness varies depending on the material properties, but due to the characteristics of the metal material. Since it does not sag easily, it is preferable that the plurality of spacing members 250 are provided and arranged in only a part of the plurality of spacers 150.

In addition, when all the spacers 150 are provided with the spacing member 250, the possibility of heat conduction through the spacer 150 and the spacing member 250 increases, so that only a part of the spacer 150 It is more preferable to have the spacing holding 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 maintaining members 250 are provided on one surface of the radiation blocking film 210 and 220 It is preferable that each is provided on the other side.

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 and disposed therebetween A structure including the 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 vertically and horizontally.

As shown in FIG. 4, the gap maintaining member 250 is disposed to be fitted into a portion of the plurality of spacers 150 formed on the first support plate 160.

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

Alternatively, the plurality of spacing 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 layer 210 disposed thereon.

In the case of the space maintaining member 262, 272 (refer to FIG. 7) disposed between the two radiation blocking layers 210 and 220, the spacer must be able to fit the radiation blocking layer 210 into a plurality of spacers 150. What is formed separately from 150 will have to be assembled in a manner that is inserted into the spacer 150.

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

It is preferable that the diameter of the through hole 215 of the radiation shielding membranes 210 and 220 is larger than the diameter of the spacer 150 and smaller than the outer diameter of the spacing member 250.

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

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

In addition, since the radiation shielding layer 210 is most preferably not in contact with the spacer 150 to prevent heat transfer due to conduction, the diameter of the through hole 215 is the same as the outer diameter of the spacer 150 Bigger is better.

In FIG. 5, a first radiation blocking film 210 is shown. Like the first radiation blocking film 210 shown in FIG. 5, the second radiation blocking film 220 is It will be understood that the through hole of is formed.

In addition, it is preferable that the plurality of spacing members 262 disposed between the pair of radiation shielding films 210 and 220 are connected to each other by a connecting rib 264 to form an integral set 260.

In addition, it is preferable that a plurality of space keeping members 272 disposed between the second radiation blocking film 220 and the second support plate 170 are also connected to each other by a connection rib 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 fitted in one spacer 150. 8 is a cross-sectional view showing that one spacer 150 is provided with one spacing member 250 and two sets of spacing members 260 and 270.

The first gap maintaining member set 260 is integrally formed including a plurality of gap maintaining members 262 arranged in a row in a vertical or horizontal direction and a connection rib 264 provided on the side of the gap maintaining member. It is desirable.

As shown in FIG. 6, the first set of gap maintaining members 260 are connected to each other by twelve connecting ribs 264 between one side of the 9 gap maintaining members.

The number of gap maintaining members and connecting ribs constituting one set of gap maintaining members may be formed differently from those shown in FIG. 6. For example, 16 gap-holding members may be connected to each other by 24 connecting ribs to be integrally formed.

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

However, it is preferable to assemble by combining the plurality of gap maintaining members 250 and the above-described first gap maintaining member set 260 and second gap maintaining member set 270 as the assembly is most desirable.

In order to minimize heat transfer due to conduction by minimizing contact with the spacer 150, the space maintaining members 262 and 272 are preferably formed to have an inclined inner surface.

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

Therefore, since the portion of the spacer holding member 262, 272 in contact with the spacer 150 is only the lowermost portion of the inner surface of the spacer holding member 262, 272, the spacer holding member from the spacer 150 The amount of heat transfer conducted to (262, 272) can be minimized.

In the case of the space holding member 250 below among the three space holding members in FIG. 8, the diameter thereof is formed to be inclined to become smaller as the outer surface, not the inner surface thereof, goes downward.

This is to minimize the area of the portion in which the gap maintaining member 250 contacts the first support plate 160.

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

In addition, the inclined direction may also be formed to be inclined so that the diameter thereof gradually decreases as the inner surface of the space maintaining member 250 goes upward.

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

In addition, the three spacing members 250, 262, and 272 may be assembled by combining differently formed inclined directions.

In addition, the connection ribs 264 and 274 of the integrally formed space maintaining member sets 260 and 270 are prevented from contacting the spacer 150, the radiation shielding films 210 and 220, and the second support plate 170. It is preferably made.

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

So, the upper or lower surfaces of the gap maintaining members 262 and 272 are in contact with the radiation shielding films 210 and 220 or the second support plate 170, and the connecting ribs 264 and 274 are made so as not to contact them. Therefore, it is possible to minimize heat transfer by conduction.

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

By forming the connection ribs 264 and 274 so that they do not come into contact with other spacers 150 around them, the spacing holding member sets 260 and 270 can be inserted into a plurality of spacers 150 and assembled. Heat transfer by can also be minimized.

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

In the perspective view of FIG. 2 and the cross-sectional view of FIG. 10, the above-described inner case 110 and outer case 120 and components assembled and inserted therebetween are shown.

First, as shown in FIG. 4, a gap holding member 250 made of separate parts is 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. In this case, the radiation blocking film 210 is mounted on the upper surfaces of the space maintaining members 250.

Then, the first gap maintaining member set 260 is inserted into the plurality of spacers 150 so that it is seated on the radiation shielding film 210.

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

A second set of spacing members 270 is inserted thereon 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 radiation shielding film assembled in this way 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 part 130, the assembly of the refrigerator body may be completed by continuously inserting those manufactured with appropriate values into the vacuum space part 130.

According to the refrigerator according to the present invention, it is very easy to assemble by inserting a plurality of spacers in the vacuum space between the inner case and the outer case, and it is possible to have a structure capable of sufficiently withstanding vacuum pressure, and The heat insulation performance is excellent because it can minimize the heat transfer by radiation through the part.

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 of ordinary skill in the relevant field can appropriately fall within the scope of the claims of the present invention. Changes will be possible.

1: main 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 shield
215: through hole
220: second radiation shield
250: gap maintaining member
260: first gap maintaining member set
262: gap maintaining member
264: connecting rib
270: second gap maintaining member set
272: gap maintaining member
274: connecting rib

Claims (15)

Including a body having a storage space in which a predetermined storage can be accommodated,
The main body,
An inner case in which the storage space is formed inside;
An outer case accommodating the inner case, the inner surface being 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 adiabatic 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 shielding film provided to reduce radiant heat transfer through the vacuum space and spaced apart from the inner case and the outer case; And
And a gap maintaining member provided in the supporting structure to maintain a gap between the inner case and the outer case and the radiation blocking film,
The support structure includes a spacer configured to maintain a gap between the inner case and the outer case, and the gap maintaining member is integrally formed with the spacer. The method of claim 1,
The space maintaining member is provided to support one surface of the radiation shield, and is positioned between the inner case and the radiation shield or between the outer case and the radiation shield. The method of claim 1,
A refrigerator, characterized in that a plurality of space maintaining members are provided, and are connected to each other to form an integral set. The method of claim 3,
The plurality of space-holding members are connected to each other by connecting ribs. The method of claim 4,
The refrigerator, characterized in that the height of the connecting rib is formed to be smaller than the height of the gap maintaining member. The method of claim 1,
A refrigerator, wherein an upper surface or a lower surface of the gap maintaining member is in contact with one surface of the radiation shield. Including a body having a storage space in which a predetermined storage can be accommodated,
The main body,
An inner case in which the storage space is formed inside;
An outer case accommodating the inner case, the inner surface being 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 adiabatic 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 shielding film provided to reduce radiant heat transfer through the vacuum space and spaced apart from the inner case and the outer case; And
And a gap maintaining member provided in the supporting structure to maintain a gap between the inner case and the outer case and the radiation blocking film,
The support structure includes a spacer that supports to maintain a gap between the inner case and the outer case, and the spacing member has an inclined inner surface in contact with the spacer so as to reduce heat transfer by reducing contact with the spacer. Refrigerator, characterized in that. The method of claim 7,
The refrigerator, characterized in that the outer diameter of the space maintaining member is larger than the outer diameter of the spacer. The method of claim 7,
A refrigerator, wherein a diameter of a through hole of the radiation shielding film is larger than an outer diameter of the spacer so that the radiation shielding film contacts the spacer to reduce heat transfer due to conduction. The method of claim 7,
A refrigerator, characterized in that the spacer is provided with a plurality of spacers, and the spacing member is provided and arranged in only some of the plurality of spacers so as to reduce heat conduction through the spacing member and the plurality of spacers. . Including a body having a storage space in which a predetermined storage can be accommodated,
The main body,
An inner case in which the storage space is formed inside;
An outer case accommodating the inner case, the inner surface being 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 adiabatic 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 shielding film provided to reduce radiant heat transfer through the vacuum space and spaced apart from the inner case and the outer case; And
And a gap maintaining member provided in the supporting structure to maintain a gap between the inner case and the outer case and the radiation blocking film,
The support structure includes a first support plate provided between the inner case and the outer case, and the space maintaining member is disposed between the first support plate and the radiation shield. The method of claim 11,
And the support structure is assembled into a set with the radiation blocking film or the space maintaining member, and then the set is disposed between the inner case and the outer case. The method of claim 11,
The support structure, after the first support plate is manufactured to have the same size as the inner case and the outer case forming one side of the main body, or a plurality of smaller sizes, and then the inner case and the outer case Refrigerator, characterized in that disposed between. The method of claim 11,
The support structure further comprises a second support plate disposed to face the first support plate, and the gap maintaining member is disposed between the first support plate and the second support plate. The method of claim 11,
The gap maintaining member, in order to minimize the area of the portion in which the gap maintaining member is in contact with the first support plate, the outer surface thereof is formed to be inclined so that its diameter gradually decreases as it goes upward or downward, or the inner surface thereof is upward Or a refrigerator, characterized in that the inclined shape so that the diameter gradually decreases as it goes downward.

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