KR20190139190A - A refrigerator comprising a vaccum space - Google Patents

Abstract

The present invention provides a refrigerator which can increase insulation effects by forming a vacuum space between an inner case and an outer case, and can promote a compact external volume. The refrigerator comprises a main body having a storage space in which predetermined storage materials can be stored. Moreover, the main body comprises: the inner case having the storage space; the outer case having the inner case stored therein, and having an inner surface spaced apart from an outer surface of the inner case at a predetermined interval; and a vacuum space unit provided between the inner case and the outer case, and having an inner portion sealed to be kept in a vacuum state to perform an insulation function between the inner case and the outer case.

Description

A refrigerator comprises a vaccum space

The present invention relates to a refrigerator having a vacuum space, and more particularly, to a refrigerator capable of improving a heat insulating function of a 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 uses a refrigerant cycle to form a temperature of a storage room at an image or sub-zero temperature so that the storage can be refrigerated or frozen.

The general configuration of the refrigerator includes a main body in which a storage space for storing a storage is formed, and a door disposed in the main body so as to be rotatable or slide-movable 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.

It is suppressed that the temperature in a storage space is influenced by the external temperature by this heat insulating material.

However, in order to realize the insulation effect using the insulation material, the thickness of the insulation material must be secured to some 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 is large. You lose.

However, in recent years, the trend toward compactness of the refrigerator has emerged, and the necessity of a structure capable of reducing the external size while increasing the volume of the internal storage space has emerged.

The present invention is provided to satisfy this need, and provides a refrigerator capable of increasing the heat insulation effect and compacting the external volume while forming a vacuum space between the inner case and the outer case.

The present invention for achieving the object includes a main body having a storage space that can be accommodated, the main body and the inner case is provided with the storage space; The inner case is accommodated, the inner surface is the An outer case disposed to be spaced apart from an outer surface of the inner case by a predetermined distance; 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 operation between the inner case and the outer case It characterized in that it comprises a vacuum space portion.

It is characterized in that it further comprises a support portion provided to support the inner surface of the inner case and the outer surface of the outer case to support them and maintain the spaced state of the inner case and the outer case.

It is characterized in that it further comprises a reinforcing rib provided to protrude on at least one of the outer surface of the inner case or the inner surface of the outer case to reinforce the strength of the inner case or the outer case.

Protruding height of the reinforcing rib is characterized in that it is formed smaller than the width of the vacuum space formed between the inner case and the outer case.

The reinforcing rib is composed of a plurality, characterized in that provided on the outer surface of the inner case or the inner surface of the outer case spaced apart from each other.

The reinforcing ribs and the inner reinforcing ribs provided on the outer surface of the inner case,

Including an outer reinforcing rib provided on the inner surface of the outer case,

The inner reinforcing ribs and the outer reinforcing ribs may be alternately disposed so that the inner reinforcing ribs and the outer reinforcing ribs do not interfere.

At least one of the inner reinforcing ribs or the outer reinforcing ribs may be disposed to face in mutually intersecting directions to reinforce the strength of at least one of the inner case and the outer case.

The reinforcing rib is disposed on at least one of an outer surface of the inner case or an inner surface of the outer case to correspond to the first direction.

The reinforcing rib may include: a first reinforcing rib disposed on at least one of an outer surface of the inner case and an inner surface of the outer case to correspond to the first direction;

And a second reinforcing rib disposed to correspond to the second direction crossing the first direction and intersecting with the first reinforcing rib.

It is provided on at least one surface of the inner case or the outer case,

It characterized in that it further comprises a forming unit is provided in a form protruding to reinforce the strength of the inner case or the outer case.

The forming unit is provided in plurality, characterized in that formed in the first direction.

The forming part formed along the first direction may include an inner forming part formed on the inner case and an outer forming part formed on the outer case.

A reinforcing frame provided on at least one of the outer surface of the inner case or the inner surface of the outer case, disposed in a different direction intersecting the direction in which the forming portion is disposed to further reinforce the strength of the inner case or the outer case. It is characterized by including.

The reinforcing frame disposed on the outer surface of the inner case is characterized in that it is disposed in the form of a ring connected to surround the outer surface of the inner case.

The reinforcing frame disposed on the inner surface of the outer case is characterized in that it is arranged in a ring shape to support the inner surface of the outer case and connected along the inner surface of the outer case.

The height of the reinforcement frame is characterized in that formed smaller than the width of the vacuum space formed between the inner case and the outer case.

The forming unit includes a first forming unit disposed along the first direction;

And a second forming part disposed along a second direction crossing the first direction.

It is disposed in the vacuum space, characterized in that it further comprises a porous material for preventing the heat transfer phenomenon of at least any one of heat radiation between the inner case and the outer case or heat conduction by gas.

Is disposed inside the vacuum space, characterized in that it further comprises a getter for absorbing the gas present in the vacuum space.

The refrigerator according to the present invention forms a vacuum space portion that is not a normal heat insulating material between the inner case and the outer case, and the vacuum space portion makes a heat insulating action in which heat transfer between the inner case and the outer case is suppressed.

Since the thermal insulation effect in the vacuum state is remarkably superior to the vacuum effect by the conventional heat insulating material, the refrigerator according to the present invention has the advantage that the thermal insulation is superior to the conventional refrigerator.

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

Therefore, the refrigerator according to the present invention can reduce the size of the outside while maintaining the same storage space as compared with the conventional refrigerator, thereby contributing to the compactness of the refrigerator.

1 is a perspective view of a refrigerator according to the present invention.
2 is a perspective view of a refrigerator main body according to a first embodiment of the present invention.
3 is a perspective view of an inner case and an outer case constituting the main body of the refrigerator according to the first embodiment of the present invention.
4 is a perspective view illustrating a part of an interior of a vacuum space part formed in an inner case and an outer case of the refrigerator main body according to the first embodiment of the present invention.
5 is a perspective view of a refrigerator main body according to a second embodiment of the present invention.
6 is a perspective view of the inner case and the outer case constituting the main body of the refrigerator according to the second embodiment of the present invention.
7 is a perspective view of a refrigerator main body according to a third embodiment of the present invention.
8 is a perspective view of the inner case and the outer case constituting the main body of the refrigerator according to the third embodiment of the present invention.
9 is a perspective view of a refrigerator main body according to a fourth embodiment of the present invention.
10 is a perspective view of the inner case and the outer case constituting the main body of the refrigerator according to the fourth embodiment of the present invention.
11 is an overall perspective view and a partial perspective view of the inner case and the reinforcement frame mounted to the inner case constituting the main body of the refrigerator according to the fifth embodiment of the present invention.
12 is an overall perspective view and a partial perspective view of an outer case and a reinforcement frame mounted to an outer case constituting a main body of a refrigerator according to a fifth embodiment of the present invention.
Figure 13 is a sectional view of the reinforcing frame of the present invention.
14 is a cross-sectional view showing a cross section of a vacuum space part provided in the refrigerator according to the fifth embodiment of the present invention.
15 is a cross-sectional view showing a vacuum space portion and a porous material filled in the vacuum space portion provided in the refrigerator according to the fifth embodiment of the present invention.
16 is a graph showing the insulation effect according to the size of the pores or pores of the porous material used in the present invention.
17 is a perspective view showing an assembling procedure of a refrigerator according to a fifth embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

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 in the main body 1, and a slide in the main body 1. The second door 5 is provided to be movable.

Here, the first door 4 opens and closes the refrigerating compartment in the storage compartment, and the second door 5 functions to open and close the freezer compartment in the storage compartment, but is not limited thereto.

Figure 2 is a perspective view showing the structure of the main body of the refrigerator according to the present invention.

In the structure of the main body 1, an inner case 110 in which a predetermined storage space 111 is formed therein, and an accommodation space for accommodating the inner case 110 are formed, and the inner case 110. It consists of an outer case 120 surrounding.

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

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

As a result, the influence of hot air outside the outer case 120 may be prevented from changing the temperature of the inner case 110.

Spacer for maintaining the space 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 The supporting unit 140 is required to act, and the supporting unit 140 is disposed to contact the outer surface of the inner case 110 and the inner surface of the outer case 120, respectively.

The support part 140 is disposed to protrude on an outer surface of the inner case 110, to be interviewed with an inner surface of the outer case 120, or to protrude on an inner surface of the outer case 120 to be disposed on the inner case 110. It may be provided to the outside of the interview.

On the other hand, both the inner surface of the outer case 120 and the outer surface of the inner case 110 may be disposed.

In this case, the positions of the support part 140 disposed on the inner surface of the outer case 120 and the support part 140 disposed on the outer surface of the inner case 110 are preferably staggered so as not to overlap each other.

On the other hand, the outer surface of the inner case 110 and the inner surface of the outer case 120 may be provided with a reinforcing rib 150 to reinforce the strength separately from the support portion 140.

Since the thickness of the inner case 110 and the outer case 120 is not thick, the inner case 110 or the outer case may be distorted by an external impact or in the air drawing operation to form the vacuum space 130. There may be a variation of 120.

Therefore, the reinforcing rib 150 is disposed on the outer surface of the inner case 110 or the inner surface of the outer case 120 to reinforce the strength.

Here, the reinforcing rib 150 is composed of a plurality, it is preferable to be spaced apart from each other on the outer surface of the inner case 110 or the inner surface of the outer case 120.

On the other hand, the vacuum space 130 is provided with a getter (160) to collect the gas that may exist in the vacuum space 130, the chemical of the outer case 120 or the inner case 110 It prevents heat transfer by gas which can be caused by change.

The getter 160 is preferably provided on the ceiling or the bottom of the vacuum space 130.

The getter 160 is composed of a material having a strong action of adsorbing or combining residual gas molecules in the vacuum space 130 to form a solid compound.

In order to obtain a satisfactory degree of vacuum in the vacuum space 130, the getter 160 is used because it is technically difficult and expensive.

There are many kinds of getters. In the solid state, those having strong adsorption action are called contact getters, and those having gaseous state and strong compounding action are called disperse getters.

Current getter materials include activated carbon, barium, magnesium, zirconium, and red phosphorus.

On the other hand, the front of the vacuum space 130 is shielded by the front cover 170 for connecting and sealing the front edge of the inner case 110 and the outer case 120.

As shown in FIG. 3, the reinforcing ribs 150 and the support 140 are spaced apart from each other without overlapping each other. 3 (a) shows the inner case 110, and FIG. 3 (b) shows the outer case 120.

The reinforcing ribs 150 are disposed in the front and rear directions and the vertical direction of the inner case 110 and the outer case 120, but are shown to cross each other, but may be arranged in only one direction.

Here, the reinforcing rib 150 disposed in the first direction (front and rear direction) is referred to as the first reinforcing rib 151, and the reinforcing rib 150 disposed in the second direction (vertical direction or the left and right directions) is second reinforcement. Speaking of the rib 152, the first and second reinforcing ribs 151 and 152 are disposed to cross each other, it is most preferably provided in an orthogonal state.

In addition, the support 140 is preferably disposed on a surface between the reinforcing rib 150 and the reinforcing rib 150.

Here, the reinforcing rib 150 disposed on the inner surface of the outer case 120 is called an outer reinforcing rib 150a, and the reinforcing rib 150 disposed on the outer surface of the inner case 110 is an inner reinforcing rib 150b. ), The outer reinforcing rib 150a and the inner reinforcing rib 150b should be in a state of being spaced apart from each other so as not to overlap each other.

When overlapping or interfering with each other, the thickness of the vacuum space portion 130 becomes thick, so that the overlap between the inner reinforcing rib 150a and the outer reinforcing rib 150b to minimize the thickness of the vacuum space portion 130 or To prevent interference.

Therefore, the inner reinforcing rib 150a and the outer reinforcing rib 150b may be alternately disposed in the vacuum space 130.

That is, it is preferable to arrange the inner reinforcing ribs 150a, the outer reinforcing ribs 150b, the inner reinforcing ribs 150a, and the outer reinforcing ribs 150b in a specific region of the vacuum space 130.

In addition, at least one of the inner reinforcing rib 150a and the outer reinforcing rib 150b may be disposed in the front-back direction or the vertical direction of the inner case 110 or the outer case 120 to cross each other.

Even if the reinforcing rib 150 is disposed only in one direction, the reinforcing rib 150 may serve as a reinforcing function.

On the other hand, the support portion 140, as described above, is disposed between the reinforcing rib 150 and the reinforcing rib 150 spaced apart from each other, it is preferable that a plurality of spaced apart from each other in the vertical direction and the front and rear direction.

This is to maintain the overall distance between the inner case 110 and the outer case 120 constituting the vacuum space 130.

4 illustrates a part of the vacuum space part 130, wherein the inner reinforcement ribs 150a and the outer reinforcement ribs 150b are disposed to be spaced apart from each other without overlapping each other.

Meanwhile, the protruding length or the protruding height of the outer reinforcing rib 150b and the inner reinforcing rib 150a is preferably smaller than that of the vacuum space 130, which is the outer reinforcing rib 150b on the outer surface of the inner case. Or to prevent the inner reinforcing rib 150a from touching the inner surface of the outer case 120.

If there is a contact of the reinforcing rib 150, heat transfer may occur to the portion, so as to prevent this, the protruding length or the height of the protruding rib 150b or the inner reinforcing rib 150a may be increased. It is preferable to form smaller than the width of the vacuum space 130.

On the other hand, the support portion 140 by having a size corresponding to the width of the vacuum space 130, it should be performed to maintain the width of the vacuum space 130.

However, since there may be a possibility of heat transfer through the support 140, it is preferable to minimize the quantity of the support 140 within a limit capable of maintaining the width of the vacuum space 140.

5 shows that the reinforcing rib 150 is disposed in only one direction in the vacuum space 130.

In the present embodiment, the reinforcing rib 150 is disposed in the front-rear direction, but it is conceivable that the reinforcing rib 150 is disposed in the vertical direction or the left-right direction.

6 shows that the reinforcing ribs 150 are disposed in the inner case 110 and the outer case 120, respectively, but the reinforcing ribs 150 are provided only in the inner case 110, or It may be provided only in the outer case 120.

The inner reinforcing ribs 150a of the reinforcing ribs 150 are disposed in the front-rear direction on the outer wall side, the upper surface and the lower surface of the inner case 110.

In addition, the outer reinforcing ribs 150b of the reinforcing ribs 150 are disposed in the front-rear direction on the inner wall side, the inner wall upper part, and the lower part of the outer case 120.

The support portion 140 is disposed between the reinforcing rib 150 and the reinforcing rib 150, respectively.

Here, as in the first embodiment, it is important that the reinforcing ribs 150 formed in one of the cases 110 and 120 do not contact the other case.

Therefore, it is preferable that the protruding length or the protruding height of the reinforcing rib 150 is smaller than the protruding height or the length of the support 140.

In addition, when both the inner reinforcing rib 150a and the outer reinforcing rib 150b are provided, the inner reinforcing rib 150a and the outer reinforcing rib 150b are spaced apart or alternately disposed so as not to interfere with each other. desirable.

7 and 8 are for the third embodiment of the present invention, instead of the reinforcing ribs 150 shown in the first and second embodiments to reinforce the strength of the inner case 210 and the outer case 210. The forming unit 250 is provided.

The forming unit 250 is formed to be bent on the surface of the inner case 210 and the surface of the outer case 220, in a predetermined direction along the surfaces of the inner case 210 and the outer case 220 Are arranged continuously.

In the present embodiment, the forming unit 250 formed on the inner case 210 is referred to as an inner foaming unit 250a and the forming unit 250 formed on the outer case 220 is referred to as an external forming unit 250b. I will define it.

The inner forming unit 250a is formed to protrude inward from both side surfaces, the upper surface, the lower surface, and the rear surface of the inner case 210. However, it may be formed to protrude outward.

In addition, the outer forming unit 250b is also formed to protrude inward or outward from both side surfaces, the upper surface, the lower surface, and the rear surface of the outer case 220.

In the first and second embodiments, the forming height or length of the reinforcing rib 150 is smaller than the width of the vacuum space 130 between the inner case 110 and the outer case 120. The protruding degree of the 250 is also preferably smaller than the width of the vacuum space 230 between the inner case 110 and the outer case 120.

This is to prevent heat transfer between the inner case 210 and the outer case 220 through the forming unit 250 as described above.

On the other hand, the support for maintaining the interval or width of the vacuum space portion 230 between the inner case 210 and the outer case 220 also on the outer surface of the inner case 210 or the inner case 210 ( 240 is provided.

The support part 240 is preferably formed on a plane provided around the forming part 250.

As the inner reinforcing rib 150a and the outer reinforcing rib 150b do not contact or interfere with each other in the first and second embodiments, the inner forming part 250a and the outer forming part 250b are also mutually It is preferred to be arranged so as not to contact or interfere.

By arranging the internal forming unit 250a and the external forming unit 250b as described above, the width of the vacuum space unit 230 may be minimized to contribute to the compactness of the refrigerator.

The forming unit 250 shown in FIGS. 7 and 8 includes a first forming unit 251 disposed in a first direction, or in a front-rear direction, a second direction crossing the first direction, or an up-down or left-right direction It includes a second forming unit 252 is arranged to.

Arranging the first forming unit 251 and the second forming unit 252 to cross each other is to strengthen the strength of the inner case 210 and the outer case 220 more effectively.

The first forming unit 251 may be provided in plural numbers, spaced apart from each other, and the second forming unit 252 may be provided in plural numbers, and disposed to be spaced apart from each other.

When the first forming part 251 and the second forming part 252 cross each other, and the strength of the inner case 210 and the outer case 220 is reinforced, a member for additional strength reinforcement is provided. Would be unnecessary.

Reference numeral 260, which is not described, denotes a getter, and 270 denotes a front cover that closes the front of the vacuum space part 230 to seal the vacuum space part 230.

Meanwhile, FIGS. 9 to 10 related to the fourth embodiment also show a case in which the forming part 350 is formed, and the case also includes an inner case 310 and an outer case in which the inner case 310 is accommodated. 320).

A support part 340 is provided on an outer surface of the inner case 310 or an inner surface of the outer case 320 to maintain a gap between the inner case 310 and the outer case 320.

However, the difference from the embodiment disclosed in FIGS. 7 and 8 is that the forming unit 350 is continuously disposed in a specific direction, specifically, in the front-rear direction. However, the forming unit 350 may be continuously disposed in the horizontal direction or the vertical direction.

Here, the forming part 350 is formed in the outer case 320, the outer forming part 320, and the forming in the inner case 310 will be referred to as the inner forming part (350a).

An important point in this embodiment is that the forming unit 350 is disposed only in either the first direction or the second direction.

As such, the advantage of arranging the forming part 350 in only one direction is that the structure of the mold for forming the case can be simpler than in the case of FIGS. 7 and 8.

However, when the forming part 350 is disposed only in one direction, it is in a superior position than the case of FIGS. 7 to 8 in terms of time and cost, but is inferior in terms of strength reinforcement.

Therefore, it is desirable to mount a separate member for strength reinforcement.

11 and 12 illustrate a reinforcing frame 380 for strength reinforcement of the inner case and the outer case.

The reinforcement frame 380 disposed on the inner case 310 of the reinforcement frame 380 is defined as an inner reinforcement frame 380a, and the reinforcement frame 380 disposed on the outer case 320 is an outer reinforcement frame. It is defined as (380b).

As shown in Figure 11, the inner reinforcement frame 380a is provided in the form of a band or ring surrounding the outer surface of the inner case 310, it is preferably composed of a plurality, it is preferably spaced apart from each other.

The arrangement direction of the inner reinforcing frame 380a is made to cross the arrangement direction of the inner forming unit 350a, thereby forming a resistance to external force applied in a direction that the inner forming unit 350a cannot cover. Prevent deformation of the inner case.

As shown in the drawing, when the inner forming unit 350a is disposed in the front-rear direction, the inner reinforcement frame 380a is disposed in the left-right direction with respect to the upper and lower surfaces of the inner case 310, and the inner case 310. It is preferable to arrange | position to the both sides of the up-and-down direction.

When the protrusion P and the recess R are formed by the inner forming part 350a on the surface of the inner case 310, the inner reinforcing member 380a is formed with the protrusion P and the recess. It is disposed to correspond to the shape of the portion (R).

That is, a portion that contacts the portion protruding by the inner forming portion 350a is disposed to protrude to the outside, and contacts the recess portion formed between the inner forming portion 350a and the inner forming portion 350a. The part is to be arranged in a form that went into the inner side than the portion projecting outward.

As shown in FIG. 12, an outer reinforcement frame is disposed on an inner surface of the outer case 320 to reinforce the strength of the outer case 320.

The outer reinforcing frame 380b is provided in the form of a strip or ring (closed loop shape) disposed along the inner surface of the outer case 320, and is preferably formed in plurality and spaced apart from each other.

The arrangement direction of the outer reinforcing frame 380b is made to cross the arrangement direction of the outer forming unit 350b, thereby forming a resistance to external force applied in a direction that the outer forming unit 350b cannot cover. The deformation of the outer case 320 is prevented.

As shown in the figure, when the outer forming unit 350b is disposed in the front-rear direction, the outer reinforcing frame 380b is disposed in the left-right direction with respect to the upper and lower surfaces of the inside of the outer case 320, the outer case It is preferable that the both sides of the 320 are disposed in the vertical direction.

When the protrusion P and the recess R are formed by the external forming part 350b on the surface of the outer case 320, the external reinforcement frame 380b includes the protrusion P and the recess. It is disposed corresponding to the shape of the set portion R.

That is, the part which contacts the part which protruded by the said external forming part 350b is arrange | positioned so that it may protrude outside, and contact | connects the recess part formed between the said external forming part 350b and the external forming part 350b. The part is to be arranged in a form that went into the inner side than the portion projecting outward.

FIG. 13 shows a cross section of an inner reinforcement frame 380a which is one of the reinforcement frames 380 disposed along the outer surface of the inner case 310.

The cross section of the inner reinforcing frame 380a is formed in the shape of "I" or "I" lying sideways.

That is, the width of the upper portion 385 and the lower portion 386 is formed larger than the width of the intermediate portion 387 connecting them.

The reason why the cross section of the inner reinforcement frame 380a is formed is that the resistance to external force is greater than the case where the upper and lower widths are the same while saving material.

The cross-sectional shape of the inner reinforcement frame 380a is preferably applied to the outer reinforcement frame 380b in the same manner.

14 illustrates a cross section when the inner case 310 and the outer case 320 are coupled to each other.

Here, the height of the inner reinforcement frame 380a and the height of the outer reinforcement frame 380b are smaller than the height or width of the vacuum space part 330 formed between the inner case 310 and the outer case 320. It is preferably formed.

This is to minimize heat transfer between the inner case 310 and the outer case 320.

Accordingly, the inner reinforcement frame 380a is disposed on an outer surface of the inner case 310, and an upper end portion of the inner reinforcement frame 380a is spaced apart from the inner surface of the outer case 320 by a predetermined distance.

On the other hand, the outer reinforcing frame 380b is disposed on the inner surface of the outer case 320, the lower end of the outer reinforcing frame 380b is disposed to be spaced apart from the upper surface of the inner case 310 by a predetermined interval.

Meanwhile, the support part 340 is provided between the outer case 320 and the inner case 310 to prevent deformation of the vacuum space part 330.

That is, the support part 340 simultaneously contacts the inner surface of the outer case 320 and the outer surface of the inner case 310 to maintain a gap between the outer case 320 and the inner case 310.

Therefore, the deformation of the vacuum space part 330 formed between the outer case 320 and the inner case 310 is prevented.

The support part 340 may be formed in the form of a boss or a column having a predetermined width and height. In FIG. 14, the support part 340 has a belt or belt-shaped base part 341 surrounding the inner case 310. And, it is shown that composed of the support member 342 protruding to one side from one surface of the base portion 341.

Here, the support member 342 is preferably disposed spaced apart from each other along the base portion 341.

However, the support part 340 is attached to the inner surface of the outer case 320, the support member 324 protrudes toward the outer surface of the inner case 310, in contact with the outer surface of the inner case 310 I can think of doing.

In FIG. 14, the space except for the inner reinforcement frame 380a, the outer reinforcement frame 380b, and the support part 340 forms an empty space and forms the vacuum space part 330.

FIG. 15 illustrates a porous material 400 for filling the vacuum space 330 shown in FIG.

The vacuum space portion 330 ideally aims to form a vacuum, and removes air and other residual gas to zero the heat transfer amount, but in reality it is difficult to exclude a certain amount of gas.

Since some heat transfer may occur due to such a gas, in order to effectively block such heat transfer, a heat insulating material having a predetermined size of pores or pores 401 is formed in the vacuum space 330. The member is placed.

The pore or pore 401 may be an active space in which gas particles may move, and the insulating material 400 having a small diameter pore or pore restricts the movement of gas particles which are a medium for heat transfer to provide heat transfer. Suppress

In any case, the vacuum space 330 is the main heat insulating action, and the heat insulation by the member having the air gap 401 is auxiliary is different from the conventional heat insulating material or vacuum heat insulating material.

The smaller the diameter D of the pores or pores 401 formed in the porous material 400, the more effective it is.

As shown in Fig. 16, it can be seen that the smaller the diameter of the voids or pores is, the smaller the heat transfer is, even at the same pressure (A line).

FIG. 17 is a perspective view illustrating a coupling sequence of the inner case 310 and the outer case 320, the inner reinforcement frame 380a, the outer reinforcement frame 380b, and the support part 340 shown in FIGS. 11 and 12. to be.

First, the assembler puts the inner case 310 in which the inner forming unit 350a is provided in the outer case 320 in which the outer forming unit 350b is provided.

In this case, the rear of the inner case 310 is blocked and only the front is open, but both the front and the rear of the outer case 320 are open.

The rear of the outer case 320 is open because the inner reinforcement frame 380a, the outer reinforcement frame 380b, and the support part 340 are opened through the rear of the outer case 320 and the This is to put between the inner case (310).

When the inner case 310 is accommodated in the outer case 320, a space is formed between the inner case 310 and the outer case 320.

This space becomes the vacuum space 330 later.

However, the spaced space is maintained and one support portion of the plurality of support portions 340 is inserted into the spaced space to reinforce the strength of the inner case 310 and the outer case 320 ((1) ) step ).

The spacing between the inner case 310 and the outer case 320 is maintained due to the arrangement of the support part 340.

When the arrangement of the support part 340 is completed, one of the plurality of internal reinforcement frames 380a is inserted into the spaced space and disposed on the outer surface of the inner case 310, but spaced apart from the support part 340. (Step (2)).

The inner reinforcing frame 380a should be spaced apart from the inner surface of the outer case 320.

Thereafter, one of the plurality of external reinforcement frames 380b is inserted into the spaced space, and disposed on the inner surface of the outer case 320, and spaced apart from the inner reinforcement frame 380a (step (3)). .

The outer reinforcement frame 380b should be spaced apart from the outer surface of the inner case 310.

Then, steps (1)-(2)-(3) are repeatedly performed.

However, when the steps (1)-(2)-(3) are performed, the arrangement order of the support part 340, the inner reinforcement frame 380a and the outer reinforcement frame 380b may be changed.

At this time, when the steps (1)-(2)-(3) are performed, the porous material 400 described with reference to FIG. 15 may be inserted.

When the alternate arrangement of the support part 340, the inner reinforcement frame 380a and the outer reinforcement frame 380b is completed, the rear of the opened outer case 320 is formed by using the rear cover 321. Cover.

In addition, the front edge between the inner case 310 and the outer case 320 is covered using the front cover 370 to seal the separation space.

Thereafter, the air is degassed with respect to the separation space, so that the separation space becomes the vacuum space part 330.

As such, when the vacuum space part 330 is formed between the inner case 310 and the outer case 320, a heat insulating function that is significantly more effective than any heat insulating material can be performed.

In addition, in the case of the heat insulating material, the thickness of the heat insulating material may be effective, but in the case of vacuum heat insulating, since the heat insulating may be performed regardless of the thickness of the vacuum layer, a refrigerator having a smaller heat insulating layer may be manufactured.

110,210,310: inner case 120,220,320: outer case
130,230,330: vacuum space portion 140,240,340: support portion
150: reinforcing rib 250, 250: forming part
350: reinforcement frame

Claims (21)

An inner case having a storage space;
An outer case whose inner surface is spaced apart from the outer surface of the inner case by a predetermined distance;
A vacuum space portion provided between the inner case and the outer case, the inside of which is sealed and maintained in a vacuum state to perform a heat insulating action between the inner case and the outer case;
A getter disposed in the vacuum space and configured to absorb a gas present in the vacuum space; And
Reinforcement disposed on at least one of an outer surface of the inner case and an inner surface of the outer case so that deformation of the inner case or the outer case can be reduced during the air drawing operation to warp an external impact or to form the vacuum space part. Ribs are included,
The reinforcing rib is provided to protrude on at least one of the outer surface of the inner case or the inner surface of the outer case,
The protrusion height of the reinforcing rib is formed smaller than the width of the vacuum space formed between the inner case and the outer case. The method of claim 1,
And a support provided in contact with an outer surface of the inner case and an inner surface of the outer case to support them and maintaining a spaced state between the inner case and the outer case. The method of claim 2,
The support portion,
A plurality of support members arranged at a predetermined interval from each other to maintain a gap between an outer surface of the inner case and an inner surface of the outer case;
And a base part disposed to contact an outer surface of the inner case or an inner surface of the outer case and mounted to connect the plurality of support members to each other. The method of claim 1,
The reinforcing rib is composed of a plurality,
Refrigerator, characterized in that spaced apart from each other on at least one of the outer surface of the inner case and the inner surface of the outer case. The method of claim 1,
The reinforcing rib includes an inner reinforcing rib provided on the outer surface of the inner case and an outer reinforcing rib provided on the inner surface of the outer case,
And the inner reinforcing rib and the outer reinforcing rib are alternately disposed so that the inner reinforcing rib and the outer reinforcing rib do not interfere with each other. The method of claim 5,
At least one of the inner reinforcing ribs and the outer reinforcing ribs, characterized in that the refrigerator is disposed so as to face in the direction crossing each other so as to reinforce the strength of at least one of the inner case or the outer case. The method of claim 1,
The reinforcement rib is disposed on at least one of an outer surface of the inner case or an inner surface of the outer case to correspond to the first direction. The method of claim 1,
And the reinforcing rib is disposed on at least one of an outer surface of the inner case or an inner surface of the outer case to correspond to the second direction. The method of claim 1,
The reinforcing rib,
First reinforcing ribs disposed on at least one of an inner surface of the inner case or an inner surface of the outer case to correspond to a first direction that is a front-rear direction of the refrigerator; And
And a second reinforcing rib disposed to correspond to the second direction crossing the first direction and intersecting with the first reinforcing rib. An inner case having a storage space;
An outer case whose inner surface is spaced apart from the outer surface of the inner case by a predetermined distance;
A vacuum space portion provided between the inner case and the outer case, the inside of which is sealed and maintained in a vacuum state to perform a heat insulating action between the inner case and the outer case;
A getter disposed in the vacuum space and configured to absorb a gas present in the vacuum space; And
Foaming disposed on at least one of an outer surface of the inner case and an inner surface of the outer case so that deformation of the inner case or the outer case can be reduced during an air drawing operation to warp an external impact or to form the vacuum space part. Part is included,
The forming unit is provided to protrude on at least one of the outer surface of the inner case or the inner surface of the outer case,
The forming unit has a plurality, the refrigerator, characterized in that formed in the first direction. The method of claim 10,
And the forming part formed along the first direction includes an inner forming part formed on the inner case and an outer forming part formed on the outer case. The method of claim 10,
A reinforcing frame provided on at least one of an outer surface of the inner case or an inner surface of the outer case and disposed in another direction intersecting with a direction in which the forming unit is disposed to reinforce the strength of the inner case or the outer case; Refrigerator comprising a. The method of claim 12,
The reinforcing frame disposed on the outer surface of the inner case, the refrigerator characterized in that it is disposed in the form of a ring connected to surround the outer surface of the inner case. The method of claim 12,
The reinforcement frame disposed on the inner surface of the outer case, the refrigerator supporting the inner surface of the outer case and is arranged in the form of a ring connected along the inner surface of the outer case. The method of claim 12,
The height of the reinforcement frame is characterized in that the refrigerator is formed smaller than the gap between the inner case and the outer case. The method of claim 10,
The forming unit may include a first forming unit disposed along the first direction; And
And a second forming unit disposed along a second direction crossing the first direction. The method of claim 10,
And a support part provided to support the outer surface of the inner case and the inner surface of the outer case to support them, and maintaining a separation state between the inner case and the outer case. The method of claim 17,
The support portion,
A plurality of support members arranged at a predetermined interval from each other to maintain a gap between an outer surface of the inner case and an inner surface of the outer case; And
And a base part disposed to contact an outer surface of the inner case or an inner surface of the outer case and mounted to connect the plurality of support members to each other. An inner case having a storage space;
An outer case whose inner surface is spaced apart from the outer surface of the inner case by a predetermined distance;
A vacuum space portion provided between the inner case and the outer case, the inside of which is sealed and maintained in a vacuum state to perform a heat insulating action between the inner case and the outer case;
A getter disposed in the vacuum space and configured to absorb a gas present in the vacuum space; And
A support part provided to contact the outer surface of the inner case and the inner surface of the outer case to support them and to maintain a spaced state between the inner case and the outer case;
The support portion,
A plurality of support members arranged at a predetermined interval from each other to maintain a gap between an outer surface of the inner case and an inner surface of the outer case; And
And a base part disposed to contact an outer surface of the inner case or an inner surface of the outer case and mounted to connect the plurality of support members to each other. The method of claim 19,
The support member is a refrigerator, characterized in that formed to protrude to one side from one surface of the base portion. The method according to any one of claims 1, 10 and 17,
And a porous material disposed in the vacuum space, the porous material preventing heat transfer between at least one of heat radiation between the inner case and the outer case or heat conduction due to gas.

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