KR102639287B1 - 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 that can improve the insulation function of the refrigerator by forming a vacuum space between the outer case and the inner case that constitute the main body.
A refrigerator having a vacuum space portion of the present invention includes a main body having a storage space in which a predetermined storage material can be accommodated, wherein the main body includes an inner case in which the storage space is formed inside; an outer case that accommodates the inner case and whose inner surface is spaced apart from the outer surface of the inner case at a predetermined distance; a vacuum space provided between the inner case and the outer case, the inside of which is sealed and maintained in a vacuum state to perform an insulation function between the inner case and the outer case; It is characterized in that it includes one or more radiation blocking films 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.

Description

{A refrigerator comprising a vacuum space}

The present invention relates to a refrigerator having a vacuum space, and more specifically, to a refrigerator that can improve the insulation function of the refrigerator by forming a vacuum space between the outer case and the inner case that constitute the main body.

A refrigerator is an electrical product that uses a refrigerant cycle to maintain the temperature of the storage room at above or below zero, allowing stored items to be refrigerated or frozen.

Looking at the general configuration of a refrigerator, it includes a main body in which a storage space for storing items is formed, and a door that is rotatably or slideably disposed on the main body to open and close the storage space.

In the case of the main body, it 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.

This insulating material prevents the temperature in the storage space from being influenced by the external temperature.

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

However, in order to realize the insulation effect using an insulation material, the thickness of the insulation material must be secured to a certain extent, which means that the insulation material becomes thicker. Naturally, the wall thickness between the inner case and the outer case becomes thicker, so the size of the refrigerator increases accordingly. It becomes bigger.

However, recently, with the trend toward compactness of refrigerators, the need for a structure that can increase the internal storage space while reducing the external size has emerged.

US Patent Publication US2000882 (1935.05.07)

US Patent Publication US2044600 (1936.06.16)

The present invention was devised to solve the above-described conventional problems, and its purpose is to provide a refrigerator that can increase the insulation effect by forming a vacuum space between the inner case and the outer case, while also achieving compactness of the external volume. there is.

In addition, it is intended to provide a refrigerator with a support structure that can maintain the gap between the inner case and the outer case without being deformed by external shock while forming a vacuum space between the inner case and the outer case.

In addition, it is intended to provide a refrigerator with a structure that can minimize radiant heat transfer through the vacuum space formed between the inner case and the outer case.

A refrigerator equipped with 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 material can be accommodated, wherein the main body has an inner case in which the storage space is formed on the inside. and; an outer case that accommodates the inner case and whose inner surface is spaced apart from the outer surface of the inner case at a predetermined distance; a vacuum space provided between the inner case and the outer case, the inside of which is sealed and maintained in a vacuum state to perform an insulation function between the inner case and the outer case; It is characterized in that it includes one or more radiation blocking films 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 the surfaces of the inner case and the outer case facing each other; a second support plate provided on at least one of the opposing surfaces 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 fixed to the first support plate and supporting the inner case and the outer case to maintain the gap between the inner case and the outer case.

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

It is preferable that at least a portion of the plurality of spacers are each provided with a plurality of gap maintenance members to maintain the gap between the first support plate and the radiation blocking film and between the radiation blocking film and the second support plate.

The radiation blocking film is preferably provided in parallel with two radiation blocking films spaced apart from each other in the vacuum space, and the plurality of gap maintenance members are provided on one side and the other side of the radiation blocking film, respectively.

Preferably, the plurality of gap maintenance members are formed in a boss shape with a predetermined height and are disposed on the outer peripheral 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 maintenance member.

It is preferable that the plurality of gap maintenance members disposed between the pair of radiation shields are connected to each other by connecting ribs to form an integrated set.

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

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

The gap maintenance member preferably has an inclined inner surface in order to minimize contact with the spacer and thereby minimize heat transfer by conduction.

It is preferable that the connecting rib of the integrated space maintaining member set is not in contact with the spacer, the radiation blocking film, and the second support plate.

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

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

According to the above-mentioned refrigerator of the present invention, a vacuum space rather than a normal 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 this vacuum space. It works.

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

Meanwhile, in the case of the vacuum space, insulation is achieved as long as the vacuum state is maintained regardless of the thickness (gap between the inner case and the outer case), but in the case of ordinary insulation materials, the thickness of the insulation material must be thickened to increase the insulation effect. An increase in thickness leads to an increase in the size of the refrigerator.

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

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

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

By providing a structure in which components such as the inner case and the outer case forming the vacuum space and one or more radiation blocking films and spacers between them can be easily assembled, workability is improved.

1 is a perspective view showing an example of a refrigerator according to the present invention.
Figure 2 is a partially cut-away perspective view showing the inner case, the outer case and various parts therebetween in the refrigerator according to the present invention.
FIG. 3 is a perspective view showing assembling the first support plate and 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 gap maintenance members.
Figure 5 is a perspective view showing the radiation blocking film of Figure 2.
Figure 6 is a perspective view showing a set of gap maintenance members formed as a single piece by connecting a plurality of gap maintenance members.
Figure 7 is a perspective view showing that one spacer is provided with two sets of gap maintenance members.
Figure 8 is a cross-sectional view showing that one spacer is provided with one gap maintenance member and two sets of gap maintenance members.
Figure 9 is a perspective view viewed from above to show the relative positional relationship of the spacer maintaining member set with adjacent spacers.
Figure 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 attached drawings.

Figure 1 shows an example of a refrigerator according to the present invention. Figure 2 shows a partially cut-away perspective view showing the inner case, 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.

Here, the first door 4 functions to open and close the freezer compartment of the storage compartment, and the second door 5 functions to open and close the refrigerator compartment of the storage compartment, but the present invention is not limited to refrigerators with this structure.

That is, the refrigerator in FIG. 1 is a so-called side-by-side type refrigerator in which the freezer compartment is placed on the left and the refrigerator compartment is placed on the right, but the refrigerator of the present invention is of all types regardless of how the refrigerator compartment and freezer compartment are arranged. Can be applied to refrigerators. In addition, of course, it can be applied to a refrigerator equipped with only a refrigerator or freezer, or a refrigerator that further includes a separate cooling chamber in addition to the refrigerator and freezer.

Looking at the structure of the main body 1, it includes an internal case 110 in which the storage space is formed inside; an outer case 120 that accommodates the inner case and is spaced apart from the inner case at a predetermined distance; a vacuum space portion 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 function between the inner case and the outer case; The vacuum space 130 includes one or more radiation blocking films 210 that are 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 arranged to be spaced apart from each other, and no separate insulating material is placed in this space, but is maintained in a vacuum state to provide insulation.

That is, a 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. maintain

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

Meanwhile, in FIG. 1, the inner case 110, the outer case 120, and the spacer 150 are shown 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 provided 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 within 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 on the outer case 120 and the inner case 110. They are arranged to be spaced apart from the case 110.

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

In the case of thermos bottles using conventional vacuum insulation, a technology is known to block radiant heat transfer by plating silver or copper on the inner surface.

However, the heat transfer blocking effect is much better when the radiation blocking films are spaced apart within the vacuum space as in the present invention rather than plating or coating metal within the vacuum space.

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.

Aluminum is cheaper than silver or copper, so manufacturing costs are low, but the emissivity is not significantly different.

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

Since the radiation blocking film 210 must be arranged to be spaced apart from the outer case 120 and the inner case 110, it must have enough 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, it can have the strength to maintain its shape by using spacers 150, which will be described later.

A plurality of spacers that maintain the gap between the inner case 110 and the outer case 120 in order 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. A plurality of such spacers 150 are arranged and supported to maintain the gap between the inner case 110 and the outer case 120.

The plurality of spacers 150 must be fixed between the inner case 110 and the outer case 120. As a structure for fixing this, the plurality of spacers 150 are connected to the first support plate 160. is placed in

The first support plate 160 may be provided to contact one of the opposing surfaces of the inner case 110 and the outer case 120.

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

The main body 1 further includes a second support plate 170 provided on one of the opposing surfaces of the inner case 110 and the outer case 120 and disposed to face the first support plate. desirable.

In the embodiment of FIG. 2, the second support plate 170 is arranged to contact the inner surface of the external case 120, and the plurality of spacers 150 are fixed to the first support plate 160 to It is supported to maintain the 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 Ultimately, it supports maintaining the gap between the inner case 110 and the outer case 120.

In the embodiment shown in FIG. 2, the first support plate 160 and the second support plate 170 are disposed at a predetermined distance, but the plurality of spacers 150 are integrally fixed to the first support plate (170). 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 arranged to directly contact the inner surface of the external case 120.

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

Going back 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 its inner surface 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 connected to the spacers 150 when the second support plate 170 is stacked on the plurality of spaces 150 integrally formed in the first support plate 160. Ensure that the relative position is fixed.

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

On the other hand, the first support plate 160 and the second support plate 170 produce units with a predetermined size smaller than the inner case 110 and the outer case 120, and then produce units with the first support plate 160 and the second support plate 170. A plurality of sets of the second support plates 170 can be manufactured by assembling them with the spacer 150 in between, and can be assembled by inserting them 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 manufactured to the same size as the inner case 110 and the outer case 120 and then assembled.

FIG. 2 shows only a portion of the inner case 110 and the outer case 120 in a laminated structure to illustrate the assembly structure.

Therefore, it will be understood that in reality, the assembled structures from the first support plate 160 to the second support plate 170 are all assembled and inserted between the inner case 110 and the outer case 120 so that they are overlapped.

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

FIG. 3 is a perspective view showing assembling a first support plate and a spacer and a second support plate, 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 gap maintenance members, and FIG. 5 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 up and down and left and right.

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

By arranging the plurality of spacers 150 in a plurality of rows in this way, design and molding are not only easy, but also easy to assemble, and the strength to withstand vacuum pressure or external shock within the vacuum space 130 after assembly is increased. It can get bigger.

Also, 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 ends of each spacer 150 can be easily seated in the grooves 175 formed in the second support plate 170 during assembly, making the assembly work much easier. .

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.

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, so that not only is positioning easy during assembly, but the second support plate 170 remains intact even 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 external case 120, respectively.

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

Therefore, the spacer 150, the first support plate 160, and the second support plate 170 provided to contact between the inner case 110 and the outer case 120 are each made of metal or ceramic, which are materials with low thermal conductivity. , it is preferable that it is made of any one of reinforced plastics.

Among these, it is better to manufacture the spacer, etc. from a material with low thermal conductivity but excellent strength, so it would be more preferable to manufacture it with ceramic or reinforced plastic rather than metal, which has excellent strength but relatively high thermal conductivity.

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 through.

Since the plurality of through holes 215 are through which the plurality of spacers 150 pass, 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 up and down and left and right, the plurality of through holes 215 are correspondingly arranged in a plurality of rows up and down and left and right.

At least a portion of the plurality of spacers 150 includes a plurality of intervals to maintain a gap 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. It is preferable that a holding member 250 is provided.

The plurality of gap maintenance members 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 easily sag, it is preferable that the plurality of gap maintenance members 250 are provided and arranged in only some of the plurality of spacers 150.

In addition, when all spacers 150 are provided with the gap maintenance member 250, the possibility of heat being conducted through the spacer 150 and the gap maintenance member 250 increases, so only a part of the spacer 150 It is more preferable to provide the gap maintenance member 250.

The radiation blocking film is provided in the vacuum space 130 as two radiation blocking films (210, 220) spaced apart from each other in parallel, and the plurality of gap maintenance members 250 are provided on one side of the radiation blocking film (210, 220). It is preferable that they are provided on the and other surfaces, respectively.

As shown in FIG. 2, the first support plate 160 and the second support plate 170 are disposed in the vacuum space 130 formed between the inner case 110 and the outer case 120. 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 to protrude in rows up and down and left and right.

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

The plurality of gap maintenance members 250 may be formed in a boss shape with a predetermined height and disposed on the outer peripheral surface of the spacer 150.

Alternatively, the plurality of gap maintenance members 250 may be formed integrally with the spacer 150.

In this case, the gap maintenance member 250 formed integrally 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 maintenance members 262 and 272 (see FIG. 7) disposed between the two radiation blocking films 210 and 220, the radiation blocking film 210 must be able to be inserted into a plurality of spacers 150, so the spacers It will have to be assembled by inserting something formed separately from (150) into the spacer (150).

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

The diameter of the through hole 215 of the radiation blocking film 210, 220 is preferably larger than the diameter of the spacer 150 and smaller than the outer diameter of the gap maintenance member 250.

Since the gap maintenance member 250 is in the form of a boss, that is, a hollow cylinder, to be inserted into the outer peripheral surface of the spacer 150, it must be larger 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 larger than or equal to that of 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 gap maintenance member 250, the spacer 150 can pass through the through hole 215. The radiation blocking film 210 may be supported by being hung on the upper surface of the gap maintenance member 250.

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

FIG. 5 shows a first radiation blocking layer 210. Like the first radiation blocking layer 210 shown in FIG. 5, the second radiation blocking layer 220 also has a plurality of layers through which the plurality of spacers 150 can penetrate. It will be understood that a through hole is formed.

In addition, it is preferable that the plurality of gap maintenance 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 integrated set 260.

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

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

The first set of gap maintenance members 260 is formed as one piece, including a plurality of gap maintenance members 262 arranged in rows up and down or left and right, and a connecting rib 264 provided on the side of the gap maintenance member. It is desirable.

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

The number of gap maintenance members and connecting ribs constituting one set of gap maintenance members may be formed differently from that shown in FIG. 6. For example, 16 space maintaining members may be connected to each other by 24 connecting ribs to form a single piece.

In addition, a plurality of gap maintaining members 262 disposed between the pair of radiation blocking films 210 and 220 and a plurality of spacing maintaining members arranged between the second radiation blocking film 220 and the second support plate 170. 272 may be formed separately from the gap maintenance member 250 disposed between the first support plate 160 and the first radiation blocking film 210.

However, it is preferable to assemble by combining the plurality of gap maintenance members 250 with the above-described first gap maintenance member set 260 and second gap maintenance member set 270 because it provides the best assembly efficiency.

It is preferable that the inner surfaces of the gap maintenance members 262 and 272 are inclined to minimize contact with the spacer 150 and thereby minimize heat transfer by conduction.

As best shown in the cross-sectional view of FIG. 8, the inner surfaces of the gap maintenance member 262 of the first gap maintenance member set 260 and the gap maintenance member 272 of the second gap maintenance member set 270 are shown below. It is formed at an angle so that its diameter gets smaller as it goes further.

Therefore, the part where the gap maintenance members 262 and 272 are in contact with the spacer 150 is only the lowermost part of the inner surface of the gap maintenance members 262 and 272, so the gap maintenance member is separated from the spacer 150. (262, 272) The amount of heat transfer conducted can be minimized.

In the case of the lower gap maintenance member 250 among the three gap maintenance members in FIG. 8, the outer surface, not the inner surface, is inclined so that its diameter becomes smaller as it goes downward.

This is to minimize the area of the area where the gap maintenance member 250 is in contact with the first support plate 160.

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

In addition, the direction of inclination may be such that the inner surface of the gap maintenance member 250 gradually decreases as its diameter increases.

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

Additionally, it may be possible to assemble the three space maintaining members 250, 262, and 272 by combining them in different inclination directions.

In addition, the connecting ribs 264, 274 of the integrated gap maintenance member set 260, 270 are prevented from contacting the spacer 150, the radiation blocking film 210, 220, and the second support plate 170. It is desirable that it be accomplished.

As shown in FIG. 7, the connecting ribs 264 and 274 are formed to be smaller than the height of the space maintaining members 262 and 272 and are connected to the mid-height portion of the space maintaining members 262 and 272.

Therefore, the upper or lower surfaces of the gap maintenance members 262 and 272 are in contact with the radiation blocking films 210 and 220 or the second support plate 170, and the connecting ribs 264 and 274 are configured not to contact them. Therefore, heat transfer by conduction can be minimized.

In addition, as shown in FIG. 9, it is preferable that the connecting ribs 264 and 274 of the spacing member sets 260 and 270 are arranged so as not to contact other spacers 150 disposed around them.

By forming the connecting ribs 264, 274 so that they do not come into contact with other spacers 150 around them, not only can the space maintaining member sets 260, 270 be assembled by inserting them into a plurality of spacers 150, 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 above-described inner case 110 and outer case 120 and the component parts assembled and inserted between them.

First, as shown in FIG. 4, gap maintenance 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 gap maintenance members 250.

Then, the first gap maintenance member 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 film 220 is inserted so that the plurality of spacers 150 pass through the plurality of through holes.

The second gap maintenance member set 270 is inserted thereon so that it is 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 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 130, assembly of the refrigerator main body can be completed by successively inserting those manufactured with appropriate dimensions into the vacuum space 130.

According to the refrigerator according to the present invention, it is very easy to assemble by inserting a plurality of spacers into the vacuum space between the inner case and the outer case, and not only can it have a structure that can sufficiently withstand vacuum pressure, but it can also be used in the vacuum space. Heat transfer by radiation can be minimized through the unit, so the insulation performance is very excellent.

Although the preferred embodiments of the present invention have been described above, the scope of the present invention is not limited to these specific embodiments, and those skilled in the art will be able to understand the invention appropriately within the scope described in the claims of the present invention. Change will be possible.

1: Body
4, 5: Door
110: Inner case
120: External case
130: Vacuum space part
150: spacer
160: first support plate
170: Second support plate
175: Home Department
210: First radiation blocking layer
215: Through hole
220: Second radiation blocking film
250: Gap maintenance member
260: First gap maintenance member set
262: Gap maintenance member
264: connecting rib
270: Second gap maintenance member set
272: Gap maintenance member
274: Connecting rib

Claims (19)

inner case;
an outer case spaced apart from the inner case;
a vacuum space configured to insulate the outer case from the inner case and having a thickness in a direction between the inner case and the outer case;
One or more radiation blocking films disposed inside the vacuum space to be spaced apart from the inner case and the outer case and provided to reduce radiant heat transfer through the vacuum space;
a plurality of gap maintenance members restricting movement of the radiation shield between the inner case and the outer case; and
A refrigerator including a connecting rib provided between the inner case and the outer case. According to paragraph 1,
A refrigerator in which the connecting rib is provided so as not to contact the radiation blocking film. According to paragraph 1,
The refrigerator is provided such that the connecting rib does not contact the inner case or does not contact the outer case. According to paragraph 1,
Includes a spacer that supports to maintain the gap between the inner case and the outer case,
A refrigerator in which the connecting rib is provided so as not to contact the spacer. According to paragraph 1,
Includes a support plate provided between the inner case and the outer case,
A refrigerator in which the connecting rib is provided so as not to contact the support plate. An internal case in which a storage space is formed inside;
an outer case that accommodates the inner case and whose inner surface is spaced apart from the outer surface of the inner case at a predetermined distance;
a vacuum space 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 function between the inner case and the outer case;
One or more radiation blocking films disposed inside the vacuum space to be spaced apart from the inner case and the outer case and provided to reduce radiant heat transfer through the vacuum space;
a plurality of gap maintenance members restricting movement of the radiation shield between the inner case and the outer case; and
A refrigerator comprising a connecting rib including a portion provided between the plurality of space maintaining members. According to clause 6,
A refrigerator in which portions of the plurality of space maintaining members are connected to each other by connecting ribs. According to clause 6,
The connecting rib is provided to connect one side of the plurality of gap maintenance members to each other. According to clause 6,
A refrigerator in which the connecting rib is formed to be smaller than the height of the gap maintenance member. inner case;
an outer case spaced apart from the inner case;
a vacuum space configured to insulate the outer case from the inner case and having a thickness in a direction between the inner case and the outer case;
One or more radiation blocking films disposed inside the vacuum space to be spaced apart from the inner case and the outer case and provided to reduce radiant heat transfer through the vacuum space; and
It includes a plurality of gap maintenance members that limit movement of the radiation shield between the inner case and the outer case,
A refrigerator in which the plurality of gap maintenance members are connected to each other and provided as a set of gap maintenance members integrally formed. According to clause 10,
A refrigerator, wherein the plurality of gap maintenance members are integrally disposed between the inner case and the outer case. According to clause 10,
A refrigerator further comprising a spacer supporting the inner case and the outer case to maintain a gap between the inner case and the outer case. According to clause 10,
Further comprising a spacer supporting the inner case and the outer case to maintain the gap between the inner case and the outer case,
A refrigerator, characterized in that after the spacer is assembled with the radiation blocking film or the gap maintenance member set, the set is disposed between the inner case and the outer case. inner case;
an outer case spaced apart from the inner case;
a vacuum space configured to insulate the outer case from the inner case and having a thickness in a direction between the inner case and the outer case;
One or more radiation blocking films disposed inside the vacuum space to be spaced apart from the inner case and the outer case and provided to reduce radiant heat transfer through the vacuum space;
A refrigerator including a connecting rib provided between the inner case and the outer case. According to clause 14,
A refrigerator in which the connecting rib is provided so as not to contact the radiation blocking film. According to clause 14,
The refrigerator is provided such that the connecting rib does not contact the inner case or does not contact the outer case. delete According to clause 14,
Further comprising a spacer supporting the inner case and the outer case to maintain the gap between the inner case and the outer case,
A refrigerator in which the connecting rib is provided so as not to contact the spacer. According to clause 14,
Further comprising a support plate provided between the inner case and the outer case,
A refrigerator in which the connecting rib is provided so as not to contact the support plate.