Vacuum insulation box

Abstract

The present invention provides a vacuum insulation container in which the outer sides of inner walls defining an inner space are encompassed by a vacuum insulation material, and then the outside thereof is finished such that a vacuum insulation material layer is present even at the corners of the container, and which has a phase change material disposed in the inner space so that the internal temperature thereof is maintained to be constant. In addition, the present invention may comprise: an inner box defining the inner space of the container and including a plurality of side walls, a bottom side and a ceiling side; a vacuum insulation panel which is disposed to be in contact with the outer side surfaces of the inner box and which encompasses the entire inner box with a preset thickness; and an outer box which is in contact with the outer side of the vacuum insulation panel and which protects the vacuum insulation panel.

Description

TECHNICAL FIELD

[0001] The present invention relates to a vacuum insulation box capable of maintaining a constant internal temperature, and more particularly, to a box that minimizes heat exchange between the interior and the exterior by forming a vacuum insulation layer therein.BACKGROUND ART

[0002] In general, it is advantageous to use a storage container that provides insulation from the exterior in order to transport temperature-sensitive goods. Particularly, when transporting over long distances by container ship, there is a need to maintain the internal temperature constant for a long period of time.

[0003] Particularly, if the insulation material is heavy and bulky, logistics costs may sharply increase when transporting goods. Therefore, it is necessary to be able to transport more goods on a single container ship by using a very small and light insulation material.

[0004] In order to solve the above problems, Korean Registered Patent No. 10-2037732 discloses a technology for insulating the interior and exterior of a container by attaching an insulating module using a vacuum insulation material to the interior container wall surface.

[0005] However, this technology is unable to prevent heat exchange between the interior and exterior of the container through the corners of the container.

[0006] Furthermore, when the container is transported for a long time, minimal but continuous heat exchange between the interior and exterior may eventually lead to a loss of the insulating effect. To solve this problem, Korean Registered Patent No. 10-2111549 discloses a configuration further comprising a cooling unit.

[0007] However, if a cooling system is provided in the interior, it may be difficult to operate depending on the environment, such as a container ship, and logistics costs may sharply increase.DISCLOSURE TECHNICAL PROBLEM

[0008] The present invention, which was devised based on the above technical background, provides a vacuum insulation box wherein the outer side of the inner wall defining an internal space is surrounded with a vacuum insulation material and then finished with an outer covering, such that a vacuum insulation material layer exists even at the corners of the box, and a phase change material is disposed in the internal space, allowing the internal temperature to be maintained constant.TECHNICAL SOLUTION

[0009] In order to achieve the above object, a vacuum insulation box according to the present invention may include: an inner box having a plurality of side wall surfaces, a bottom surface, and a ceiling surface that together define an internal space of the vacuum insulation box; a vacuum insulation panel disposed in contact with an outer side surface of the inner box and entirely surrounding the inner box with a predetermined thickness; and an outer box disposed in contact with an outer side of the vacuum insulation panel to protect the vacuum insulation panel.

[0010] In addition, the vacuum insulation panel may have a trapezoidal cross-section with a slanted surface formed on all of its corners.

[0011] In addition, the vacuum insulation panel may include a first panel having a trapezoidal cross-section and a second panel having a rhombic cross-section with a slope corresponding to the side surface of the first panel.

[0012] In addition, the outer box may be formed of a plurality of outer plates, each having an outer coupling part with alternating protrusions and recesses at its ends, and the outer plates are coupled to one another by the engagement of the outer coupling part with that of adjacent outer plates.

[0013] In addition, the outer box may be formed in the shape of a box with an open upper surface and may further include a fixing cap coupled to and fixed to the upper and lower surfaces of the outer box.

[0014] In addition, the inner box may have a cooling member containing a phase change material installed on an inner surface of the side wall surfaces.

[0015] In addition, the side wall surface may have a pair of vertical rails formed on its inner surface, the vertical rails facing each other and each having an 'L'-shaped cross-section in the vertical direction, and the cooling member may be installed to move up and down along the vertical rails.

[0016] In addition, the cooling member may be formed in a plate shape and may have coupling keys with alternating protrusions and recesses formed on both ends, and the vertical rail may be formed with corresponding keys having shapes that match the coupling keys, allowing the coupling keys to pass through and be inserted into the vertical rails.

[0017] In addition, the corresponding key may be formed only on the upper side of the vertical rails.

[0018] In addition, the cooling member may be formed with a pair of handle parts, each formed as through-holes, and the inner side surface of the handle parts may be partially recessed toward the center of the cooling member to form a gripping part.

[0019] In addition, the ceiling surface may be formed with a plurality of horizontal rails, and a plurality of cooling members may be inserted into and installed in the horizontal rails.

[0020] In addition, the inner box may be formed such that its side wall surfaces, bottom surface, and ceiling surface each have an inner coupling part with alternating protrusions and recesses formed at their respective ends, allowing the inner coupling parts to be engaged and fixed with that of other adjacent surfaces to the side wall surfaces, the bottom surface, and the ceiling surface.

[0021] In addition, at least one of the side wall surfaces may include a door configured to be selectively detachable, the door being formed of the side wall surface and the vacuum insulation panel, and the ends of the side wall surface, the bottom surface, and the ceiling surface that come into contact with the door may be formed to be smooth.EFFECT OF THE INVENTION

[0022] The vacuum insulation box according to an embodiment of the present invention may prevent heat exchange with a vacuum insulation layer, and maintain the internal space at a preset, uniform temperature through the cooling member.

[0023] The vacuum insulation box according to an embodiment of the present invention may form a vacuum insulation layer of a size desired by the user by connecting a central plate and side plates.

[0024] The vacuum insulation box according to an embodiment of the present invention may improve insulation efficiency because a vacuum insulation layer of a predetermined thickness is formed even in the corner portions.

[0025] The vacuum insulation box according to an embodiment of the present invention can prevent the vacuum insulation layer from being damaged by installing the outer plates to maintain the vacuum capability of the vacuum insulation layer.

[0026] The vacuum insulation box according to an embodiment of the present invention can be firmly fixed as the outer coupling parts formed on the outer plates are engaged.

[0027] The vacuum insulation box according to an embodiment of the present invention may firmly fix the outer plates as the fixing cap secures the vacuum insulation box.

[0028] The vacuum insulation box according to an embodiment of the present invention allows a user to easily carry the cooling member using the handle part formed on the cooling member and the gripping part formed on the inner side of the handle part.

[0029] The vacuum insulation box according to an embodiment of the present invention may install a cooling member in the interior of the vacuum insulation box via horizontal rails formed on the ceiling surface, and a plurality of cooling members may be installed on a single horizontal rail.

[0030] The vacuum insulation box according to an embodiment of the present invention may be configured such that the cooling member is inserted into the vertical rail through a corresponding key formed in the vertical rail, and a plurality of cooling members may be stacked by moving the cooling member downward.

[0031] The vacuum insulation box according to an embodiment of the present invention has a door, allowing goods to be stored in the internal space of the vacuum insulation box.BRIEF DESCRIPTION OF THE DRAWINGS

[0032] FIG. 1 is a perspective view of a vacuum insulation box with finishing caps coupled according to an embodiment of the present invention. FIG. 2 is a perspective view of a vacuum insulation box according to an embodiment of the present invention. FIG. 3 is an installation view of a vacuum insulation layer according to an embodiment of the present invention. FIG. 4 is an exploded view of a vacuum insulation box according to an embodiment of the present invention. FIG. 5 is a perspective view of a vacuum insulation layer according to an embodiment of the present invention. FIG. 6 is a perspective view of a door according to an embodiment of the present invention. FIG. 7 is a cross-sectional view of the body of a vacuum insulation box according to an embodiment of the present invention. FIG. 8 is a perspective view and a cross-sectional view of a cooling member according to an embodiment of the present invention. FIG. 9 is a diagram showing the installation of a cooling member according to an embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

[0033] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0034] The advantages and features of the present invention and methods for achieving them will become apparent by referring to the embodiments described in detail below in conjunction with the accompanying drawings.

[0035] However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various forms, and these embodiments are provided merely to make the disclosure of the present invention complete and to fully inform those skilled in the art to which the present invention pertains of the scope of the invention, and the present invention is defined only by the scope of the claims.

[0036] In addition, in describing the present invention, if it is determined that detailed descriptions of related known technologies may obscure the gist of the present invention, such descriptions are omitted.

[0037] FIG. 1 is a perspective view of a vacuum insulation box with finishing caps coupled according to an embodiment of the present invention.

[0038] Referring to FIG. 1, the vacuum insulation box 1 of the present invention may include fixing caps 900 installed at the top and bottom ends to prevent a plurality of outer plates 510 that form an outer box 500 on the outermost sides of the vacuum insulation box 1 from separating from each other.

[0039] The fixing cap 900 has one open side and a single surface on its opposing side, with vertical plates of a predetermined height formed at each corner, thereby allowing the fixing cap 900 to be coupled with the vacuum insulation box 1 through the box's open side.

[0040] The fixing cap 900 may be coupled to the top and bottom ends of the vacuum insulation box 1. In this way, the outer plates 510 may be prevented from being separated.

[0041] The outer plates 510 may be installed on six surfaces of the vacuum insulation box 1, and outer coupling parts 530 to be described later, which are formed on the ends of the outer plates 510, may be coupled with those formed on the ends of adjacent outer plates 510.

[0042] FIG. 2 is a perspective view of a vacuum insulation box according to an embodiment of the present invention.

[0043] Referring to FIG. 2, the vacuum insulation box 1 is formed on the outermost part by a plurality of outer plates 510 coupled to each other. On the inner side of the outer plates, a vacuum insulation panel 300 and an inner box 100, which will be described later, are disposed to block heat exchange between an internal space 170 of the vacuum insulation box 1 and the exterior.

[0044] The outer plates 510, located on the outermost part of the vacuum insulation box 1, may be formed on each end with the outer coupling parts 530 having alternating protrusions and recesses that allow them to be coupled with the outer coupling parts 530 of adjacent outer plates 510. In this way, external forces applied from all directions may be dispersed through the engagement of all corners of the outer plates 510 with one another.

[0045] In addition, the outer plates 510 may protect the vacuum insulation panel 300 to be described later, and since each outer plate may be installed by being fitted with adjacent plates, the installation is simple and no additional adhesive or coupling member may be required.

[0046] In other words, the outer plates 510 may be installed on the exterior of the vacuum insulation panel 300, to be described later, enabling rapid coupling. Because no separate adhesives or coupling members are needed to connect the outer plates 510, installation may save time, and the engagement of the outer coupling parts 530 enables the vacuum insulation box 1 to robustly withstand external forces applied from any direction.

[0047] FIG. 3 is an installation view of a vacuum insulation layer according to an embodiment of the present invention.

[0048] Referring to FIG. 3, the vacuum insulation panel 300 may be formed by three plates coupled together. The vacuum insulation panel 300 may be installed on the exterior of the side wall surfaces 110, bottom surface 150, and ceiling surface 130 of the inner box 100 to be described later.

[0049] The vacuum insulation panel 300 may be installed, in a shape in which three plates are coupled, on each of the surfaces 110, 130 and 150 of the inner box.

[0050] The vacuum insulation panel 300 may be formed by a first panel 310 and a second panel 330 which is coupled to an end of the first panel 310. In addition, another vacuum insulation panel 300 may be coupled to the second panel 330 to form the vacuum insulation panel 300

[0051] Depending on the size of the inner box 100, the size of the vacuum insulation panel 300 may be adjusted by additionally connecting another second panel 330 to the second panel 330.

[0052] The first panel 310 may be formed with a trapezoidal cross-section. The side surfaces of the first panel 310 may be inclined toward the center to form a diagonal surface. The side surface of the second panel may be coupled to the diagonal surface.

[0053] The second panel 330 may be formed with a rhombic cross-section so that the side surface formed on one side of the second panel 330 may correspond to the diagonal surface formed on the side surface of the first panel 310. One side of the second panel and the diagonal surface of the first panel 310 may be coupled in contact with each other.

[0054] In addition, the side surface of the other side of the second panel 330 may be formed with a slant of the same angle and width as the diagonal surface of another second panel 330. Therefore, another second panel 330 may be additionally coupled to the other side of the second panel 330.

[0055] In other words, the vacuum insulation panel 300 may be formed with one first panel 310 and the plurality of second panels 330, wherein the plurality of second panels 330 may be connected to the first panel 310 depending on a user's needs to create a vacuum insulation panel 300 having desired size.

[0056] In addition, the end of one side of the vacuum insulation panel 300 may be formed with a diagonal surface by the first panel 310. Additionally, the end of the other side may be formed with the diagonal surface by the second panel 330.

[0057] Accordingly, the vacuum insulation panel 300 disposed on the inner box 100 may have ends with widths and angles that correspond to the side surfaces of other adjacent vacuum insulation panels 300, allowing the different adjacent vacuum insulation panels 300 to be placed in vertical contact with each other.

[0058] This ensures that a sufficient number of vacuum insulation panels 300 are present on the corners of the inner box 100, thereby improving the insulation effect of the vacuum insulation box 1.

[0059] FIG. 4 is an exploded view of a vacuum insulation box according to an embodiment of the present invention.

[0060] Referring to FIG. 4, the vacuum insulation box 1 may include, from the interior, an inner box 100, a vacuum insulation panel 300, and outer plates 510.

[0061] The inner box 100 may include a bottom surface 150 formed on the lowermost part, a plurality of side wall surfaces 110 formed vertically from the end of the bottom surface 150, and a ceiling surface 130 formed on the top of the side wall surfaces 110.

[0062] The bottom surface 150, side wall surfaces 110, and ceiling surface 130 of the inner box 100 may be formed with inner coupling parts 160 at their ends, so that the bottom surface 150, the side wall surfaces 110, and the ceiling surface 130 may be firmly fixed through the engagement of the inner coupling parts 160.

[0063] One of the side wall surfaces 110 may be configured to be selectively detachable from the inner box 100. This allows a door 600 to be formed, which may open and close an internal space 170 of the vacuum insulation box 1.

[0064] The door 600 may be formed from one of the side wall surfaces 110 and a vacuum insulation panel 300 coupled to one of the side wall surfaces 110. This allows a user to store goods in the internal space 170 and, when the door 600 is closed, the door 600 may come into contact with the rest of the inner box 100.

[0065] The end of the inner box 100 that comes into contact with the door 600 is formed smoothly without the inner coupling part 160.

[0066] This allows the door 600 to be quickly closed into contact with the inner box 100.

[0067] As the vacuum insulation panel 300 formed on the door 600 comes into contact with the vacuum insulation panel 300 formed on the rest of the inner box 100, heat exchange between the internal space 170 and the exterior of the vacuum insulation box 1 may be prevented.

[0068] Furthermore, once the door 600 is closed, the outer plates 510 may be assembled on the outer side of the vacuum insulation panel 300. This may protect the vacuum insulation panel 300, which allows the insulation effect of the vacuum insulation box 1 to be maintained.

[0069] FIG. 5 is a perspective view of a vacuum insulation layer according to an embodiment of the present invention.

[0070] Referring to FIG. 5, the vacuum insulation panel 300 is formed of two types: first panels 310 and second panels 330. The first panel 310 may be formed with a trapezoidal cross-section in the width direction, so that its upper surface is smaller than its lower surface.

[0071] That is, the first panel 310 may have an upper surface narrower than its lower surface, with two diagonal surfaces extending from the ends of the lower surface to the ends of the upper surface in the width direction. Furthermore, the left and right diagonal surfaces of the first panel 310 may be formed with the same width and angle, and in opposite directions from each other.

[0072] In addition, the centers of the upper and lower surfaces of the first panel 310 may be aligned along a single line perpendicular to the ground.

[0073] In addition, the first panel 310 may also have a trapezoidal cross-section in the longitudinal direction. The longitudinal cross-section of the first panel 310 may be formed such that the upper surface is smaller than the lower surface, with the centers of the upper and lower surfaces being on a single line perpendicular to the ground.

[0074] In addition, the two side surfaces of the first panel 310 in the longitudinal direction may also be formed with two diagonal surfaces having the same shape as the two diagonal surfaces formed in the width direction.

[0075] In other words, all the side surfaces of the first panel 310 formed from the upper surface to the lower surface may be formed with the same width and angle, and may be formed with different orientations toward the center of the one surface.

[0076] The second panel 330 coupled to both sides of the first panel 310 may be formed with a rhombic cross-section in the width direction. That is, the upper and lower surfaces of the second panel 330 may have the same width in the width direction.

[0077] Therefore, the side surfaces of the second panel 330 located between the upper surface and the lower surface may be formed to have the same shape. In addition, because the side surfaces of the second panel 330 correspond to the side surfaces of the first panel 310 to have the same width and the same angle, the side surfaces of the first panel 310 and the second panel 330 may be installed to be fitted together, and this allows the top portion of the first panel 310 and the top portion of the second panel 330 to be formed at the same height, creating a flat surface.

[0078] In addition, the longitudinal cross-section of the second panel 330 may be formed with the same shape as the longitudinal cross-section of the first panel 310. Thus, when the first panel 310 and the second panel 330 are coupled, the two side surfaces in the longitudinal direction may form diagonal surfaces that incline toward the centers of the first panel 310 and the second panel 330.

[0079] In addition, depending on a user's needs, another second panel 330 may be additionally installed at the end of the second panel 330 to adjust the size of the vacuum insulation panel 300.

[0080] The first panel 310 and the second panel 330 may be bonded together with an adhesive and installed in close contact with each other to maintain the insulation effect.

[0081] FIG. 6 is a perspective view of a door according to an embodiment of the present invention;

[0082] Referring to FIG. 6, the door 600 may provide access to the internal space 170 of the vacuum insulation box 1 to allow a user to store goods.

[0083] The door 600 may be formed with one of the side wall surfaces 110 of the inner box 100 and the vacuum insulation panel 300 bonded to that side wall surface 110. Before the user stores goods, the door 600 may remain unassembled.

[0084] In this way, by leaving the door 600 unassembled, goods and a cooling member 700, to be described later, may be installed in the internal space 170.

[0085] After the user has completed storing goods, the door 600 may be installed and additionally, the door 600 may be fixed to the exterior of the vacuum insulation panel 300 using a member such as a belt (not shown).

[0086] FIG. 7 is a cross-sectional view of the body of a vacuum insulation box according to an embodiment of the present invention.

[0087] Referring to FIG. 7, the vacuum insulation box 1 may include an inner box 100 to define an internal space 170 and a vacuum insulation panel 300 may be formed in contact with the outer side surface of the inner box 100 to block heat exchange between the internal space 170 and the exterior.

[0088] The vacuum insulation panel 300 may be formed by bonding a plurality of plates made of vacuum insulation material together, and may be installed having a predetermined thickness on the outer side of the inner box 100.

[0089] In addition, the vacuum insulation panel 300 may also be installed having a predetermined thickness on the outer side of the corners of the inner box 100, thereby completely and seamlessly surrounding the inner box 100. This completely prevents heat exchange between the internal space 170 and the exterior.

[0090] In addition, the vacuum insulation material may comprise a shell and a core, and when the core is installed within the shell, a vacuum state may be created within the shell, thereby generating an insulation effect. Accordingly, if the shell is damaged and air enters the interior of the shell, the insulation effect may be lost.

[0091] Therefore, the vacuum insulation panel 300 may be protected from damage by tightly coupling an outer plate 510 to the outer side of the vacuum insulation panel 300.

[0092] A plurality of cooling members 700 may be installed in the internal space 170. The cooling members 700 may maintain the temperature of the internal space 170 at a constant level through the phase-change material that absorbs and releases energy through phase changes under a specific temperature condition. Therefore, the internal space 170 may be provided with a member for installing the cooling members 700.

[0093] Each cooling member 700 may be installed on the ceiling surface 130 via a horizontal rail 131 installed on the inner side of the ceiling surface 130. The horizontal rail 131 may be formed as a pair of horizontal rails 131.

[0094] The pair of horizontal rails 131 may be installed spaced apart by a distance corresponding to the longitudinal length of the cooling member 700, and a plurality of such pairs may be installed on a single ceiling surface 130.

[0095] Each of the horizontal rails 131 may be comprised of a protruding surface 131a that protrudes vertically downward from the ceiling surface 130 by the thickness of the cooling member 700, and a supporting surface 131b that is formed with a predetermined width at the end of the protruding surface 131a, parallel to the ceiling surface 130, thereby preventing the cooling member 700 from falling downward.

[0096] With the door 600 in an open state, the cooling member 700 to be installed on the ceiling surface 130 may be inserted into the inner side of the horizontal rail 131 through the end of the horizontal rail 131 facing the door 600.

[0097] In addition, after the cooling member 700 is inserted into the horizontal rail 131, it may be moved along the pair of horizontal rails 131 to the opposite end, and then another cooling member 700 may be inserted and moved through the end facing the door 600.

[0098] This allows a plurality of cooling members 700 to be arranged side by side along the horizontal rail 131.

[0099] In addition, a vertical rail 111, to be described later, may be installed on the side wall surface 110 to allow a plurality of cooling members 700 to be stacked and installed.

[0100] FIG. 8 is a perspective view and a cross-sectional view of a cooling member according to an embodiment of the present invention.

[0101] (a) of FIG. 8 is a perspective view, and (b) of FIG. 8 is a cross-sectional view. The shape of the cooling member 700 will be described with reference to both the perspective view and the cross-sectional view.

[0102] Referring to FIG. 8, the cooling member 700 may be formed with a predetermined thickness, and a coupling key 710 with alternating protrusions and recesses may be formed at both longitudinal ends of the cooling member 700.

[0103] In addition, the cooling member 700 may be formed with handle parts 730, each formed as a through-hole. The handle parts 730 may be formed as a pair and located at inclined positions in the longitudinal direction of the cooling member 700.

[0104] This allows the user to carry the cooling member 700 by inserting both hands into the handle parts 730.

[0105] In addition, gripping parts 731 recessed toward the center of the cooling member 700 may be further formed on the inner side surfaces of the handle parts 730. The gripping parts 731 may allow a user's fingers to be positioned therein when transporting the cooling member 700.

[0106] This allows the user to more easily grip the cooling member 700 when carrying the cooling member 700.

[0107] The gripping part 731 may be recessed at the same angle from both the one side surface and the other side surface, thereby making it easy to grip the cooling member 700 from either side. Accordingly, the cooling member 700 may be installed in either orientation because both its one side surface and the other side surface are identical. This allows for quick installation of the cooling member 700.

[0108] FIG. 9 is an installation view of a cooling member according to an embodiment of the present invention.

[0109] Referring to FIG. 9, the cooling members 700 may be inserted into and installed in the vertical rails 111. The vertical rails 111 may be formed on the side wall surface 110, and may be configured as a pair of vertical rails 111.

[0110] The vertical rails 111 may be installed spaced apart by the length of the cooling member 700 in the longitudinal direction, and a plurality of pairs of vertical rails 111 may be installed on the side wall surface 110.

[0111] Each vertical rail 111 may be formed with a guide plate 111a extending vertically from the inner side of the side wall surface 110 by the thickness of the cooling member 700. The guide plate 111a may extend from the bottom end to the top end of the side wall surface 110. This allows the cooling member 700 to be moved along the guide plate 111a from the bottom end to the top end of the side wall surface 110.

[0112] In addition, the vertical rail 111 may be formed with an anti-detachment plate 111b at the end of the guide plate 111a. The anti-detachment plate 111b may be formed parallel to the side wall surface 110.

[0113] The anti-detachment plate 111b may be formed with a predetermined width at the ends of the pair of guide plates 111a extending toward the center direction of the pair of vertical rails 111. This allows the anti-detachment plate 111b to prevent the cooling member 700 from detaching from the vertical rail 111.

[0114] The upper side of the anti-detachment plate 111b may be formed with a corresponding key 111c which corresponds to the coupling key 710 on the cooling member 700. The coupling key 710 may be inserted into the vertical rail 111 by matching the protrusions and recesses of the corresponding key 111c.

[0115] In this way, the vertical rail 111 extends from the bottom end to the top end of the side wall surface 110, allowing the cooling member 700 to be inserted into the inner side of the vertical rail 111, even though the ends of the vertical rail 111 are blocked by the ceiling surface 130 and the bottom surface 150.

[0116] In addition, after the cooling member 700 is inserted into the vertical rail 111 and moved downward, another cooling member 700 may be inserted into the vertical rail 111 and stacked on top of the previously installed cooling member 700.

[0117] This allows a plurality of the cooling members 700 to be stacked and installed. Furthermore, because a plurality of vertical rails 111 are formed on the side wall surface 110, a large number of cooling members 700 can be installed in the internal space 170.

[0118] Although the present invention has been described above with reference to the embodiment(s) shown in the drawings, it is merely illustrative, and those skilled in the art will appreciate that various modifications may be made therefrom and that all or a portion of the above-described embodiment(s) may be selectively combined and configured. Therefore, the true technical scope of the present invention is to be defined by the technical spirit of the appended claims.[List of Reference Numbers]

[0119] 1:Vacuum insulation box100:Inner box110:Side wall surface111:Vertical Rail111a:Guide Plate111b:Anti-detachment plate111c:Corresponding key130:Ceiling surface131:Horizontal rail131a:Protruding surface131b:Supporting surface150:Bottom surface160:Inner coupling part170:Internal space300:Vacuum insulation panel310:First panel330:Second panel500:Outer box510:Outer plate530:Outer coupling part600:Door700:Cooling member710:Coupling key730:Handle part731:Gripping part900:Fixing cap

Claims

1. A vacuum insulation box comprising: an inner box having a plurality of side wall surfaces, a bottom surface, and a ceiling surface that together define an internal space of the vacuum insulation box; a vacuum insulation panel disposed in contact with an outer side surface of the inner box and entirely surrounding the inner box with a predetermined thickness; and an outer box disposed in contact with an outer side of the vacuum insulation panel to protect the vacuum insulation panel.

2. The vacuum insulation box of claim 1, wherein the vacuum insulation panel has a trapezoidal cross-section with a slanted surface formed on all of its corners.

3. The vacuum insulation box of claim 1, wherein the vacuum insulation panel includes: a first panel having a trapezoidal cross-section; and a second panel having a rhombic cross-section with a slope corresponding to the side surface of the first panel.

4. The vacuum insulation box of claim 1, wherein the outer box is formed of a plurality of outer plates, each having an outer coupling part with alternating protrusions and recesses at its ends, and the outer plates are coupled to one another by the engagement of the outer coupling parts with those of adjacent outer plates.

5. The vacuum insulation box of claim 4, wherein the outer box is formed in the shape of a box with an open upper surface and further includes a fixing cap coupled to and fixed to the upper and lower surfaces of the outer box.

6. The vacuum insulation box of claim 1, wherein the inner box has a cooling member containing a phase change material installed on its inner side wall surface.

7. The vacuum insulation box of claim 6, wherein at least of the side wall surfaces has a pair of vertical rails formed on its inner side surface to face each other, each having an 'L'-shaped cross-section in the vertical direction, and the cooling member is installed to move up and down along the vertical rails.

8. The vacuum insulation box of claim 7, wherein the cooling member is formed in a plate shape and has coupling keys with alternating protrusions and recesses formed on both ends, and the vertical rails are formed with corresponding keys that match the shape of the coupling keys, allowing the coupling keys to pass through and be inserted into the vertical rail.

9. The vacuum insulation box of claim 8, wherein the corresponding key is formed only on the upper side of the vertical rails.

10. The vacuum insulation box of claim 6, wherein the cooling member is formed with a pair of handle parts formed as through-holes, and the inner side surfaces of the handle parts are partially recessed toward the center of the cooling member to form a gripping part.

11. The vacuum insulation box of claim 6, wherein the ceiling surface is formed with a plurality of horizontal rails, and a plurality of cooling members are inserted into and installed in the horizontal rails.

12. The vacuum insulation box of claim 1, wherein the inner box is formed such that its side wall surfaces, bottom surface, and ceiling surface each have inner coupling parts with alternating protrusions and recesses formed at their respective ends, allowing the inner coupling parts to be engaged and fixed with those of other adjacent surfaces of the side wall surfaces, the bottom surface, and the ceiling surface.

13. The vacuum insulation box of claim 12, wherein at least one of the side wall surfaces include a door configured to be selectively detachable as at least one of the plurality of side wall surfaces, and the end of the inner box that comes into contact with the door is formed to be smooth.

Images