Vacuum insulation and thermal insulation container

Abstract

The present invention provides a vacuum insulator, comprising: a metal plate; a glass plate arranged opposite to the metal plate and spaced apart; and a sealing structure arranged between the metal plate and the glass plate to seal and fix the metal plate and the glass plate, and a vacuum cavity is defined between the metal plate and the glass plate. The vacuum insulator of the present invention is impact-resistant and has a stable structure, and can be used alone to manufacture a heat-insulating container. The present invention also provides a heat-insulating container having the vacuum insulator.

Description

Technical Field

[0001] The present invention relates to the field of vacuum insulation technology, in particular to a vacuum insulation body and a heat preservation container. Background Art

[0002] Among the known vacuum insulators, one is the vacuum insulation panel (i.e. VIP panel). Due to the limitations of strength and appearance, the vacuum insulation panel cannot be used independently and needs to be embedded in a polyurethane foam layer for use, or additional appearance protection is added to the periphery of the vacuum insulation panel, which makes the structure complicated; the second is vacuum glass. Since the glass is transparent, the radiation heat transfer is large and it is not impact-resistant. At the same time, the frame used to fix the glass is difficult to shape and the manufacturing cost is high; the third is vacuum steel plate insulator, which is mostly used for barrel-shaped products, such as vacuum insulation cups, LNG tanks, etc. Due to the thermal bridge effect at the edge sealing due to the heat transfer between the inner and outer shells, the vacuum steel plate insulator is difficult to be made into a flat plate, which limits the application scenarios of the insulation container. Summary of the invention

[0003] An object of the present invention is to provide a vacuum insulator which is structurally stable and impact-resistant.

[0004] A further object of the present invention is to provide a vacuum insulator with good thermal insulation effect.

[0005] Another further object of the present invention is to provide a heat-insulating container which is easy to assemble and has good heat-insulating effect.

[0006] In particular, the present invention provides a vacuum insulation body, comprising:

[0007] Metal sheets;

[0008] a glass plate spaced apart from the metal plate; and

[0009] The sealing structure is arranged between the metal plate and the glass plate to seal and fix the metal plate and the glass plate, and a vacuum chamber is defined between the metal plate and the glass plate.

[0010] Optionally, the sealing structure includes a nickel-plated layer and a solder sheet;

[0011] A nickel-plated layer is formed on the upper surface of the glass plate, and a solder sheet is arranged between the nickel-plated layer and the lower surface of the metal plate. The metal plate and the glass plate are sealed and fixed by welding the nickel-plated layer and the solder sheet.

[0012] Optionally, the sealing structure includes a metal sheet and a glass frit slurry;

[0013] A glass powder slurry is arranged on the upper surface of the glass plate, and a metal sheet is arranged between the glass powder slurry and the lower surface of the metal plate. The metal plate and the glass plate are sealed and fixed by melting the glass powder slurry and welding the metal sheet.

[0014] Optionally, the sealing structure includes a silicone layer, and the metal plate and the glass plate are sealed and fixed by bonding with the silicone layer.

[0015] Optionally, the vacuum insulation body further includes: a plurality of support members, disposed in the vacuum chamber and configured to be fixed to the metal plate and / or the glass plate so as to provide support between the metal plate and the glass plate.

[0016] Optionally, the thickness of the metal plate is 1-1.5 mm;

[0017] The thickness of the glass plate is 2-4 mm;

[0018] The gap between the metal plate and the glass plate is 0.15-1mm;

[0019] The width of the sealing structure is 10-15 mm.

[0020] The present invention also provides a heat-insulating container, comprising:

[0021] A box body, wherein a storage space is defined in the box body, and a storage opening is provided on the box body for storing items; and

[0022] The door body is arranged at the front side of the storage opening and is used to open and close the storage space;

[0023] At least a portion of the box body and / or the door body is the aforementioned vacuum insulation body.

[0024] Optionally, the metal plate has a main body portion and a bent portion;

[0025] The main body is arranged opposite to the glass plate;

[0026] The bending portion extends from the end of the main body portion toward the side where the glass plate is located, so that a groove is defined between the inner surface of the bending portion and the end of the glass plate.

[0027] Optionally, the box body includes: a main frame, a fixing member and a plurality of vacuum insulation bodies;

[0028] The main frame is a rectangular structure defined by multiple edges, and multiple vacuum insulators are fixed to the main frame via fixing parts to define a box body, wherein the metal plates of the vacuum insulators constitute the outer shell of the box body, and the glass plates constitute the inner shell of the box body.

[0029] Optionally, the fixing member has a main body, two extension parts and two plug-in parts;

[0030] Two adjacent vacuum insulators are spliced ​​and fixed via fixing parts, wherein the main body is configured to be clamped between the outer surfaces of the bent parts of the two vacuum insulators, the two extension parts are configured to extend from the main body respectively between the glass plates of the two vacuum insulators and the edges of the main frames, and the two plug-in parts are configured to be respectively inserted into the grooves of the two vacuum insulators.

[0031] Optionally, the door body comprises: a connecting frame, a door seal and a vacuum insulation body;

[0032] The connecting frame has a first frame portion and a second frame portion;

[0033] The first frame portion has a protrusion that matches the groove, and the vacuum insulation body is fixed to the connection frame by matching the protrusion with the groove;

[0034] The second frame portion is formed on a side of the first frame portion close to the box body, and the door seal is fixed to the connecting frame by fixing the door seal to the second frame portion; and

[0035] The metal plate of the vacuum insulation body constitutes the outer plate of the door body, and the glass plate constitutes the inner plate of the door body.

[0036] The vacuum insulation body of the present invention comprises a metal plate and a glass plate that are relatively spaced apart, and a sealing structure is used to seal and fix the metal plate and the glass plate, so that the vacuum insulation body is impact-resistant and has a stable structure, and can be used alone to manufacture a thermal insulation container; at the same time, when the vacuum insulation body is used to manufacture a thermal insulation container, the metal plate serves as the outer layer plate of the thermal insulation container, and the glass plate serves as the inner layer plate of the thermal insulation container, and the radiation heat transfer is small.

[0037] Furthermore, the sealing structure of the vacuum insulation body of the present invention includes a nickel-plated layer and a solder sheet, or a metal sheet and a glass powder slurry, or a silicone layer, which can make the metal plate and the glass plate tightly sealed to avoid air leakage caused by loose sealing.

[0038] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0040] Figure 1 Schematic diagram of the cross-sectional structure of a vacuum insulation body according to an embodiment of the present invention.

[0041] Figure 2 yes Figure 1 A structural schematic diagram of the sealing structure of the vacuum insulation body shown.

[0042] Figure 3 yes Figure 1 Another structural schematic diagram of the sealing structure of the vacuum insulation body shown.

[0043] Figure 4 yes Figure 1 Another structural schematic diagram of the sealing structure of the vacuum insulation body shown.

[0044] Figure 5 It is a schematic structural diagram of a heat preservation container according to an embodiment of the present invention.

[0045] Figure 6 yes Figure 5 Schematic diagram of the explosive decomposition of the insulated container shown.

[0046] Figure 7 yes Figure 5 A schematic diagram of a partial cross-sectional structure of a box body of a thermal insulation container is shown.

[0047] Figure 8 yes Figure 5 A schematic diagram of the partial cross-sectional structure of the door body of the thermal insulation container is shown. DETAILED DESCRIPTION

[0048] In the following description, the "upper" and "lower" directions of the vacuum insulation body 100 are directions based on the vacuum insulation body 100 itself as a reference. Figure 1 For the thermal insulation container 200, the orientation or positional relationship indicated by "front", "rear", "up", "down", "left", "right", etc. is based on the orientation of the thermal insulation container 200 itself as a reference, such as Figure 5 as shown in .

[0049] Figure 1 FIG. 1 is a schematic cross-sectional view of a vacuum insulation body 100 according to an embodiment of the present invention. Figure 1 As shown, a vacuum insulation body 100 according to an embodiment of the present invention comprises: a metal plate 101, a glass plate 102 and a sealing structure 103. The glass plate 102 is arranged opposite to the metal plate 101 and spaced apart from each other. The sealing structure 103 is arranged between the metal plate 101 and the glass plate 102 to seal and fix the metal plate 101 and the glass plate 102, and a vacuum chamber 110 is defined between the metal plate 101 and the glass plate 102. The vacuum insulation body 100 of the embodiment of the present invention can reduce convective heat transfer by evacuating the sealed metal plate 101 and the glass plate 102. The vacuum insulation body 100 can be used in the thermal insulation container 200. The metal plate 101 is used as the outer plate of the vacuum insulation body 100 to stabilize the structure of the entire vacuum insulation body 100 and maintain an independent appearance structure. The glass plate 102 is used as the inner plate of the vacuum insulation body 100 to minimize the radiation heat transfer of the entire vacuum insulation body 100. In addition, the vacuum insulation body 100 can be roughly a flat plate structure, which increases the application scenarios of the thermal insulation container 200 and better meets user needs. The vacuum degree of the vacuum chamber 110 of the vacuum insulation body 100 of the embodiment of the present invention is 10 -1 -10-3 In some embodiments, the metal plate 101 is a stainless steel plate, which may be a stainless steel plate with a mirrored or evaporated inner surface. For example, 304 stainless steel. The use of a stainless steel plate can ensure the strength of the vacuum insulation body 100, have a beautiful appearance, reduce radiation heat transfer, and avoid air leakage caused by corrosion and rust.

[0050] The thickness of the metal plate 101 and the thickness of the glass plate 102 may be the same or different. In some embodiments, the thickness of the metal plate 101 is 1-1.5 mm, for example, 1 mm, 1.2 mm, 1.5 mm. The thickness of the glass plate 102 is 2-4 mm, for example, 2 mm, 3 mm, 4 mm. Before the present invention, when faced with the problem of ensuring the insulation effect, those skilled in the art usually increase the thickness of the two-layer plate, for example, using a plate with a thickness greater than 10 mm. However, the applicant creatively realized that the thickness of the two-layer plate is not the greater the better. In the design scheme of increasing the thickness of the plate, the problem of the entire weight of the vacuum insulation body 100 being too heavy will be brought about, which will have an adverse effect on the use of the vacuum insulation body 100. In addition, when the vacuum insulation body 100 is applied to the insulation container 200, there will also be the problem of reducing the internal volume of the insulation container 200. For this reason, the applicant jumps out of the conventional design ideas and creatively proposes to limit the thickness of the two-layer plate, while reducing the space occupied by the vacuum insulation body 100 to ensure the insulation effect. The width of the sealing structure 103 is 10-15mm, for example, 10mm, 12mm, and 15mm. Through a large number of experimental studies, it is preferred to limit the width range of the sealing structure 103 to 10mm-15mm, which can not only ensure a tight seal, but also avoid the sealing structure 103 being too wide to cause the volume of the vacuum chamber 110 to be reduced, so that the insulation effect of the vacuum insulation body 100 is good. The spacing between the metal plate 101 and the glass plate 102 is 0.15-1mm, for example, 0.15mm, 0.5mm, and 1mm. Setting the spacing between the metal plate 101 and the glass plate 102 to 0.15-1mm can meet different insulation and product requirements. In addition, in order to further reduce the thermal radiation of the glass, a LOW-E film layer can be added to the glass plate 102. It should be understood that adding a LOW-E film layer will increase the manufacturing cost.

[0051] The sealing structure 103 needs to be able to be tightly combined with the glass plate 102 and the metal plate 101 to ensure a tight connection between the glass and the metal plate 101 . Figure 2 yes Figure 1 A structural schematic diagram of the sealing structure 103 of the vacuum insulation body 100 is shown. Figure 3 yes Figure 1 Another schematic structural diagram of the sealing structure 103 of the vacuum insulation body 100 is shown. Figure 4 yes Figure 1Another structural schematic diagram of the sealing structure 103 of the vacuum insulation body 100 is shown.

[0052] like Figure 2 As shown, the sealing structure 103 includes a nickel-plated layer 131 and a solder sheet 132; the nickel-plated layer 131 is formed on the upper surface of the glass plate 102, and the solder sheet 132 is arranged between the nickel-plated layer 131 and the lower surface of the metal plate 101, and the sealing and fixing of the metal plate 101 and the glass plate 102 are achieved by welding the nickel-plated layer 131 and the solder sheet 132. By forming the nickel-plated layer 131 on the upper surface of the glass plate 102 and arranging the solder sheet 132 between the nickel-plated layer 131 and the lower surface of the metal plate 101, the metal plate 101 and the glass plate 102 can be tightly sealed to avoid air leakage caused by loose sealing. The thickness of the nickel-plated layer 131 can be 1μm-2μm; the thickness of the solder sheet 132 can be 0.08mm-0.12mm, for example, 0.1mm. The thickness of the nickel-plated layer 131 is 1μm-2μm, which can take into account the needs of adhesion and metal welding. The thickness of the solder sheet 132 is 0.08 mm to 0.12 mm, which takes into account both welding strength and heat conduction.

[0053] The manufacturing method of the vacuum insulation body 100 comprises the following steps:

[0054] Performing nickel plating on the glass plate 102 to form a nickel plating layer 131 on the upper surface of the glass plate 102;

[0055] A solder sheet 132 is placed between the nickel-plated layer 131 and the metal plate 101;

[0056] The air between the glass plate 102 and the metal plate 101 is extracted through the gap between the solder sheet 132 and the metal plate 101;

[0057] The solder sheet 132 and the metal plate 101 are welded and sealed to obtain the vacuum insulation body 100.

[0058] The nickel plating treatment of the glass plate 102 can be carried out by using the method of nickel plating on glass disclosed in the prior art, which will not be described in detail here. The solder sheet 132 can be a silver-copper solder sheet, Ag:Cu=72:28. The vacuum treatment and welding sealing treatment are carried out in a vacuum furnace. The vacuum treatment is to evacuate to a vacuum degree of 10 -1 -10 -3 Pa. The welding temperature is 750° C.-850° C., for example, 800° C. After the treatment is completed, the temperature is kept for 1 min-2 min, and then the vacuum insulation body 100 is taken out of the vacuum furnace.

[0059] like Figure 3As shown, in other embodiments, the sealing structure 103 includes a metal sheet 141 and a glass powder slurry 142; the glass powder slurry 142 is disposed on the upper surface of the glass plate 102, and the metal sheet 141 is disposed between the glass powder slurry 142 and the lower surface of the metal plate 101, and the sealing and fixing of the metal plate 101 and the glass plate 102 are achieved by melting the glass powder slurry 142 and welding the metal sheet 141. The metal sheet 141 is fixed on the surface of the glass plate 102 by using the glass powder slurry 142, and the metal sheet 141 is used to achieve the sealing and fixing of the glass plate 102 and the metal plate 101, so that the metal plate 101 and the glass plate 102 can be tightly sealed to avoid leakage caused by loose sealing. The metal sheet 141 can use a metal strip. The metal sheet 141 can be a Kovar alloy sheet, for example, chromium-iron alloy, iron-nickel-cobalt alloy, etc.

[0060] The manufacturing method of the vacuum insulation body 100 comprises the following steps:

[0061] Coating a glass frit slurry 142 on the metal sheet 141;

[0062] The metal sheet 141 is attached to the upper surface of the glass plate 102, and heated and melted to fix the metal sheet 141 to the glass plate 102;

[0063] The air between the glass plate 102 and the metal plate 101 is extracted through the gap between the metal sheet 141 and the metal plate 101;

[0064] The metal sheet 141 and the metal plate 101 are welded and sealed to obtain the vacuum insulation body 100 .

[0065] The heating melting temperature is 440℃-460℃, which can melt the paste but not the glass. The vacuum treatment and welding sealing treatment are carried out in a vacuum furnace. The vacuum treatment is to evacuate to a vacuum degree of 10 -1 -10 -3 Pa. The welding temperature is 750° C.-850° C., for example, 800° C. After the treatment is completed, the temperature is kept for 1 min-2 min, and then the vacuum insulation body 100 is taken out of the vacuum furnace.

[0066] like Figure 4 As shown, in some other embodiments, the sealing structure 103 includes a silicone layer 150; the metal plate 101 and the glass plate 102 are sealed and fixed by bonding with the silicone layer 150 to avoid leakage caused by loose sealing. The silicone can be quick-drying silicone, which has the strength performance of structural adhesive and the toughness of silicone, and has good air tightness, and can be tightly combined with the glass plate 102 and the metal plate 101. In some embodiments, the thickness of the silicone layer 150 is 0.3mm-1mm, for example 0.3mm, 0.5mm, 1mm. The thickness of the silicone layer 150 is 0.3mm-1mm, which can take into account structural strength, toughness, heat insulation and degassing.

[0067] like Figure 1 As shown, in some embodiments, the vacuum insulation body 100 further includes: a plurality of support members 104, which are arranged in the vacuum chamber 110 and are configured to be fixed to the metal plate 101 and / or the glass plate 102 so as to provide support between the metal plate 101 and the glass plate 102. By arranging a plurality of support members 104 in the vacuum chamber 110, support can be provided to the metal plate 101 and the glass plate 102, thereby enhancing the strength of the entire vacuum insulation body 100; the support members 104 are directly fixed to the metal plate 101 and / or the glass plate 102, so that the arrangement process of the support members 104 is simplified, and the manufacturing process of the entire vacuum insulation body 100 is simplified. The support members 104 can be, for example, quartz glass columns, polytetrafluoroethylene columns, dot-shaped ceramics or glass microbeads, and the quartz glass columns, polytetrafluoroethylene columns, and glass microbeads can be bonded to the lower surface of the metal plate 101 and / or the upper surface of the glass plate 102 with silicone.

[0068] The vacuum insulation body 100 of the embodiment of the present invention solves the problems of structural strength, heat transfer, support and sealing, so that the vacuum insulation body 100 can be actually produced and applied, especially the vacuum insulation body 100 can be applied to the thermal insulation container 200. Figure 5 : is a schematic diagram of the structure of a heat preservation container 200 according to an embodiment of the present invention. The heat preservation container 200 includes a box body 300 and a door body 400. A storage space 210 is defined in the box body 300, and a storage opening for storing items is opened on the box body 300. The door body 400 is arranged in front of the storage opening, and is used to open and close the storage space 210. At least a part of the box body 300 and / or the door body 400 is a vacuum insulation body 100. Preferably, the entire box body 300 and the door body 400 are both vacuum insulation bodies 100. Figure 5 As shown, usually, the storage opening of the box body 300 is located at the front side of the box body 300, and the door body 400 is correspondingly arranged in front of the box body 300. The vacuum insulation body 100 of the embodiment of the present invention can be roughly flat, so that the insulation container 200 manufactured by it can have multiple deformations, increasing the application scenarios of the insulation container 200. The insulation container 200 of the present invention can also be designed and used as a part of a smart home.

[0069] refer to Figure 5In some embodiments, the box 300 includes a main frame 301, a fixing member 302, and a plurality of vacuum insulators 100. The main frame 301 is a rectangular parallelepiped structure defined by a plurality of edges. The plurality of vacuum insulators 100 are fixed to the main frame 301 via the fixing member 302 to define a storage space 210. The metal plate 101 constitutes the outer shell of the box 300, the glass plate 102 constitutes the inner shell of the box 300, and the inner side of the glass plate 102 away from the metal plate 101 is the storage space 210. The box 300 is formed by using the vacuum insulator 100, so that the wall thickness of the heat preservation container 200 is kept small while ensuring the heat preservation effect of the heat preservation container 200, and the internal volume of the heat preservation container 200 is increased. Figure 6 yes Figure 5 The thermal insulation container 200 of the embodiment of the present invention uses a fixing member 302 to fix the vacuum insulation body 100 and the main frame 301 to form a box body 300, so that the manufacturing process of the thermal insulation container 200 is simple, thereby reducing costs.

[0070] refer to Figure 1 and Figure 2 The metal plate 101 of the vacuum insulation body 100 of the embodiment of the present invention has a main body 111 and a bending portion 112; the main body 111 is arranged opposite to the glass plate 102; the bending portion 112 extends from the end of the main body 111 toward the side where the glass plate 102 is located, so that a groove 113 is defined between the inner surface of the bending portion 112 and the end of the glass plate 102.

[0071] Figure 7 yes Figure 5The schematic diagram of the partial cross-section structure of the box body 300 of the heat-insulating container 200 shown. The fixing member 302 of the box body 300 of the heat-insulating container 200 of the embodiment of the present invention has a main body 321, two extensions 322 and two plug-in parts 323. Two adjacent vacuum insulators 100 are spliced ​​and fixed via the fixing member 302, wherein the main body 321 is configured to be clamped between the outer surfaces of the bending parts 112 of the two vacuum insulators 100, the two extensions 322 are configured to extend from the main body 321 respectively between the glass plates 102 of the two vacuum insulators 100 and the edges of the main frame 301, and the two plug-in parts 323 are configured to be inserted into the grooves 113 of the two vacuum insulators 100 respectively. By configuring the fixing member 302 to have a main body 321, two extensions 322 and two plug-in parts 323, and configuring the vacuum insulation body 100 to have a groove 113 structure, the splicing of the vacuum insulation bodies 100 and the fixation between the vacuum insulation bodies 100 and the main frame 301 are very convenient to achieve, and the extensions 322 and the plug-in parts 323 are provided so that the several can be firmly fixed. The fixing member 302 can be a plastic member, such as ABS plastic. In addition, an adhesive 600 can be used between the glass plate 102 and the extension 322 of the fixing member 302 to make the assembly more stable.

[0072] Continue to refer Figure 5 In some embodiments, the door body 400 of the heat preservation container 200 of the embodiment of the present invention includes: a connecting frame 401, a door seal 402 and a vacuum insulation body 100. The connecting frame 401 has a first frame portion 411 and a second frame portion 412; the first frame portion 411 has a protrusion (not numbered in the figure) that matches the groove 113, and the vacuum insulation body 100 is fixed to the connecting frame 401 by matching the protrusion with the groove 113. The second frame portion 412 is formed on the side of the first frame portion 411 close to the box body 300, and the door seal 402 is fixed to the connecting frame 401 by fixing the door seal 402 to the second frame portion 412, wherein the metal plate 101 constitutes the outer plate of the door body 400, and the glass plate 102 constitutes the inner plate of the door body 400. Figure 8 yes Figure 5The schematic diagram of the partial cross-sectional structure of the door body 400 of the thermal insulation container 200 shown. The side of the second frame portion 412 away from the first frame portion 411 is concave to form a receiving cavity 413. The door seal 402 includes an airbag 421, a base 422 and a magnetic strip 423; the base 422 is accommodated in the receiving cavity 413; the magnetic strip 423 is arranged on the airbag 421, and cooperates with the metal plate 101 of the box body 300 to adsorb the door seal 402 on the box body 300. The structure of the door body 400 is ingenious, and the first frame portion 411 and the second frame portion 412 of the connecting frame 401 are used to firmly fix the vacuum insulation body 100, the door seal 402 and the connecting frame 401, while maintaining the appearance of the door body 400 in one piece, thereby enhancing the user's sensory experience. The connecting frame 401 can be a plastic part, such as ABS plastic. In addition, an adhesive 600 can be used between the glass plate 102 and the connecting frame 401 to make the assembly more stable. As shown in FIG. Figure 5 As shown, a plurality of bottle holders 500 may be provided on the inner side of the door body 400 for storing articles.

[0073] The vacuum insulation body 100 of the embodiment of the present invention includes a metal plate 101 and a glass plate 102 that are relatively spaced apart, and a sealing structure 103 is used to seal and fix the metal plate 101 and the glass plate 102, so that the vacuum insulation body 100 is impact-resistant and has a stable structure, and can be used alone to manufacture a thermal insulation container 200; at the same time, when the vacuum insulation body 100 is used to manufacture a thermal insulation container 200, the metal plate 101 serves as the outer plate of the thermal insulation container 200, and the glass plate 102 serves as the inner plate of the thermal insulation container 200, and the radiation heat transfer is small.

[0074] Furthermore, the sealing structure 103 of the vacuum insulation body 100 of the embodiment of the present invention includes a nickel-plated layer 131 and a solder sheet 132, or a metal sheet 141 and a glass powder slurry 142, or a silicone layer 150, which can make the metal plate 101 and the glass plate 102 tightly sealed to avoid air leakage caused by loose sealing.

[0075] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A vacuum insulator, comprising: Metal sheets; A glass plate is spaced apart from the metal plate; A sealing structure is disposed between the metal plate and the glass plate to seal and fix the metal plate and the glass plate, and a vacuum chamber is defined between the metal plate and the glass plate; and a plurality of support members disposed in the vacuum chamber and configured to be fixed to the metal plate and / or the glass plate so as to provide support between the metal plate and the glass plate; The sealing structure includes a metal sheet and glass powder slurry; The glass powder slurry is disposed on the upper surface of the glass plate, and the metal sheet is disposed between the glass powder slurry and the lower surface of the metal plate. The metal plate and the glass plate are sealed and fixed by melting the glass powder slurry and welding the metal sheet.

2. The vacuum insulation body according to claim 1, wherein: The thickness of the metal plate is 1-1.5 mm; The thickness of the glass plate is 2-4 mm; The distance between the metal plate and the glass plate is 0.15-1 mm; The width of the sealing structure is 10-15 mm.

3. A heat-insulating container, comprising: A box body, wherein a storage space is defined in the box body, and a storage opening for storing articles is opened on the box body; and A door body is arranged at the front side of the storage opening and is used to open and close the storage space; wherein At least a portion of the box body and / or the door body is a vacuum insulation body according to any one of claims 1-2.

4. The heat-insulating container according to claim 3, wherein: The metal plate has a main body portion and a bending portion; The main body is arranged opposite to the glass plate; The bending portion extends from the end of the main body toward the side where the glass plate is located, so that a groove is defined between the inner surface of the bending portion and the end of the glass plate.

5. The heat-insulating container according to claim 4, wherein: The box body comprises: a main frame, a fixing member and a plurality of vacuum insulation bodies; The main frame is a rectangular structure defined by multiple edges, and the multiple vacuum insulators are fixed to the main frame via the fixing parts to define the box body, wherein the metal plates of the vacuum insulators constitute the outer shell of the box body, and the glass plates constitute the inner shell of the box body.

6. The heat-insulating container according to claim 5, wherein: The fixing member comprises a main body, two extension parts and two plug-in parts; Two adjacent vacuum insulators are spliced ​​and fixed via the fixing parts, wherein the main body is configured to be clamped between the outer surfaces of the bent parts of the two vacuum insulators, the two extending parts are configured to extend from the main body respectively between the glass plates of the two vacuum insulators and the edges of the main frame, and the two plug-in parts are configured to be respectively inserted into the grooves of the two vacuum insulators.

7. The heat-insulating container according to claim 6, wherein: The door body comprises: a connecting frame, a door seal and the vacuum insulation body; The connecting frame has a first frame portion and a second frame portion; The first frame portion has a protrusion that matches the groove, and the vacuum insulation body is fixed to the connection frame by matching the protrusion with the groove; The second frame portion is formed on a side of the first frame portion close to the box body, and the door seal is fixed to the connecting frame by fixing the door seal to the second frame portion; and The metal plate of the vacuum insulation body constitutes an outer plate of the door body, and the glass plate constitutes an inner plate of the door body.

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