CN219912250U - Perforated vacuum heat insulation plate - Google Patents
Perforated vacuum heat insulation plate Download PDFInfo
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- CN219912250U CN219912250U CN202321497403.2U CN202321497403U CN219912250U CN 219912250 U CN219912250 U CN 219912250U CN 202321497403 U CN202321497403 U CN 202321497403U CN 219912250 U CN219912250 U CN 219912250U
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Abstract
The utility model relates to an open-pore vacuum insulation panel, which can effectively maintain the heat insulation performance of the vacuum insulation panel while opening pores; the air-isolation structure film adopts a heat sealing technology that one side is flat and one side is buckled, so that the quantity of folded edges is reduced, the crease leakage rate is reduced, the edge heat bridge effect is small, the service life of the air-isolation structure film is prolonged, the damage of a conventional opening to a vacuum insulation panel is avoided, and the air tightness of the vacuum insulation panel is ensured. The prefabrication of the perforated core material can also ensure the expected design of the vacuum insulation panel, and reduces the thermal bridge effect brought by conventional perforation or module splicing. Compared with the prior art, the open-pore vacuum insulation panel can be used in heat insulation system equipment and other equipment needing to be opened, the application occasion is widened, the problems of integral air tightness and flatness of the open-pore vacuum insulation panel are solved, the service life is prolonged, and the influence of a heat bridge of the integral vacuum insulation panel is reduced.
Description
Technical Field
The utility model relates to the technical field of heat insulation material engineering, in particular to an open-pore vacuum heat insulation plate.
Background
The adoption of the high-efficiency heat insulating material is an effective way for reducing the energy consumption of the system, saving energy, reducing emission, realizing green low-carbon production and living and completing the 'double-carbon' target. The vacuum insulation panel is a novel high-efficiency environment-friendly heat insulation material, has a heat conduction coefficient as low as below 0.002W/(m.K), is a heat insulation material with optimal heat insulation performance at present, has been widely focused in the building energy conservation, household appliances, industrial chemical industry, aerospace, transportation and cold chain logistics industry, and has wide market application prospect.
The conventional vacuum insulation panel is composed of a porous medium core material, a high barrier film material which wraps the core material while maintaining the internal vacuum degree, and a gas adsorption material (getter or desiccant), and has a structure as shown in fig. 1. On one hand, the method is based on the porous medium vacuum heat insulation principle, so that the convection effect can be effectively eliminated; on the other hand, through optimizing the core material, the heat conduction is controlled in a reasonable range, and the heat transport of gas molecules and the heat radiation of solid matrixes are effectively reduced. The vacuum heat insulation plate combines two methods of vacuum heat insulation and micropore heat insulation to achieve the purpose of heat preservation and energy saving.
The vacuum insulation panel is generally made into a flat plate shape, and the size is not too small (the size is too small, the edge thermal bridge effect is aggravated, the heat insulation performance is affected, and even the vacuum insulation panel can not be disabled), and the vacuum insulation panel can not be cut, cut and perforated in the use process, and can not be bent, stretched, compressed to change the shape, the size and the like. These limitations greatly limit the application and popularization of vacuum insulation panels. With the advancement of dual carbon targets and the demand of engineering for heat insulation materials, vacuum insulation panels with open cell structures meet the market needs. At present, a method for reducing the overall size of the vacuum insulation panel or splicing modules of the vacuum insulation panel is mainly adopted to meet the requirements of special scenes. However, the two methods can aggravate the integral thermal bridge of the vacuum insulation panel due to the reduction of the size; the method of adopting the special-shaped vacuum insulation panel splicing module meets the hole scene requirement, not only increases the manufacturing procedure and cost of a single vacuum insulation panel, but also aggravates heat leakage at the splicing position, so that the heat insulation performance of the vacuum insulation panel is greatly reduced. Therefore, the vacuum insulation panel perforating technology and the vacuum insulation panel perforating method are the needs of development and development of the vacuum insulation panel. Patent CN 102095048A refers to a method for opening a glass fiber vacuum insulation panel for a glass fiber core material, but in fact, the processing technology at the opening and the added clamping groove structure can leak air from the vacuum insulation panel, damage internal vacuum, and in addition, the air-insulating structure has too many folds to form a plurality of air leakage points, so that linear edge thermal bridges are aggravated, and heat insulation performance and service life are affected.
Therefore, the perforated vacuum insulation panel meeting the requirements is developed, the whole structure is complete, the perforated thermal bridge effect can be effectively reduced, the service life is not affected, and the perforated vacuum insulation panel is a neck clamping problem which needs to be overcome urgently.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides an open-pore vacuum insulation panel. This vacuum insulation board structure, at the in-process of trompil, its inner structure and vacuum are not destroyed, and life can effectively prolong. The utility model adopts the technical means to ensure the strength of the plate and meet the engineering requirements while compensating the heat bridge loss.
The aim of the utility model can be achieved by the following technical scheme:
the utility model provides an open-pore vacuum heat-insulating plate, which comprises: the open pore vacuum insulation panel comprises an inner porous medium core material, an outer gas-barrier structure film and an open pore; the inner and outer edges of the upper and lower gas-barrier structure films are connected; the porous medium core material is arranged in the upper and lower gas-barrier structure films; the open pore penetrates through the open pore vacuum insulation panel; the joint of the upper and lower air-isolation structure films forms an air-isolation structure heat-sealing lip; one of the upper and lower gas-barrier structure films is flat and wrinkle-free, and the other one is buckled on the flat and wrinkle-free gas-barrier structure film. The porous medium core material is pre-perforated before packaging.
Further, the upper and lower air-insulating structure films form an air-insulating structure film packaging bag.
Further, the heat seal lip of the gas barrier structure is generally not less than 1 cm, preferably 1.5 cm or more.
Further, the shape of the opening may be circular, square, triangular or any shape.
Further, the edges of the upper and lower air-insulating structure films are connected in a hot-melt manner.
Further, one or more openings are arranged on the open-pore vacuum insulation panel.
Further, a gas adsorption material is arranged in the porous medium core material.
Further, the thickness of the vacuum insulation panel is 5-40mm.
Further, the pre-opening process refers to that the porous medium core material is pre-processed into an opening with a required shape according to the process or engineering requirements, and the opening is placed into the packaging bag of the gas-barrier structure film after the pre-processing.
Further, the porous medium core material is one or a combination of a plurality of fiber felt, a particle pressing plate and a foaming material plate.
Further, the gas barrier structure film is one or a combination of a plurality of films such as a metal film, a metal-plated composite film, a plurality of polyester-based plastic films and the like.
Further, protective materials such as snap fasteners, plastic fasteners and clamping grooves can be additionally arranged at the edge of the opening of the open-pore vacuum insulation panel.
Further, the porous medium core material may be a fiber mat, such as a glass fiber mat, a glass fiber paper, a flame surface, a ceramic fiber mat, or a combination of several materials, or may be a particle pressing board with prefabricated holes, such as an aerogel board, or may be a foam board with holes, an extruded board, a microporous polyurethane foam board with holes, or may be a board with multiple kinds of overlapped materials.
Further, the prefabricated air-isolation structure film bag is flat on one side.
Further, the open-pore vacuum insulation panel can be one or a combination of a plurality of designs such as a flat plate, an arc, a round tube, a spherical crown and the like.
Further, the edge of the opening of the open-pore vacuum insulation panel can be provided with a heat insulation material.
The preparation method of the open-pore vacuum insulation panel comprises the following steps:
s1, reasonably designing the specification of a vacuum insulation panel according to actual engineering requirements, wherein the specification of the vacuum insulation panel comprises the shape and the size of an opening of a porous medium core material and the thickness of the vacuum insulation panel; when determining the required thickness of the vacuum insulation panel, considering the compression ratio of the inner core material after vacuumizing to obtain the proper thickness of the inner core material;
s2, manufacturing an open-pore core material based on the specification of the designed vacuum insulation panel, comprising the following substeps:
s21, carrying out hole opening treatment on the core material;
s22, placing the porous medium core material with the holes in a pretreatment device, and heating and drying to remove residual moisture or water vapor in the core material;
s3, pre-cutting the air-isolation structure film into a rectangle according to the dimension parameters of the prefabricated perforated core material, and heat-sealing three edges of the air-isolation structure film by heat-sealing equipment to manufacture an air-isolation structure film packaging bag;
s4, after the air-isolation structure film packaging bag is manufactured, taking out the heat-dried perforated core material, then placing the perforated core material in the air-isolation structure film packaging bag, adjusting the position of the perforated core material in the air-isolation structure film packaging bag, placing the air-isolation structure film packaging bag in vacuum heat-seal packaging equipment, and placing the non-heat-sealed edges of the air-isolation structure film packaging bag on a heat seal for pressing and fixing;
s5, vacuumizing the perforated vacuum insulation panel, and heat-sealing the fourth edge, wherein the specific process is as follows:
s51, processing and trimming the peripheral edges of the air-isolation structure after heat sealing of the open-hole vacuum heat-insulating plate, and heat-sealing again by using external heat-sealing equipment under the condition that the lip edge of the fourth edge is too wide;
s52, cutting off the overlong lip of the vacuum insulation panel. The width of the preformed lip of the vacuum insulation panel is generally not less than 1 cm, preferably more than 1.5 cm.
S6, at the position of the opening of the processed vacuum heat-insulating plate, two layers of air-insulating structure films are attracted together, and the heating equipment is adopted for uniform hot-melting heat sealing, and the specific process is as follows: and opening and preheating the heat sealing device to a preheating temperature, uniformly heat-sealing the concave opening of the processed vacuum heat insulation plate, uniformly heat-sealing the two layers of gas-barrier structure films which are sucked together by hot melting, and applying a certain pressure when necessary.
S7, the perforating process follows the principle of expanding gradually from the center to the edge, firstly, the perforated shape is marked on the air-isolating structural film at the concave perforated position, then, a tool is used for mechanically perforating, the lip edge is reserved for avoiding air leakage, the width of the lip edge is generally not less than 1 cm, preferably more than 1.5 cm, and finally, the perforated vacuum insulation panel is manufactured.
Further, in step S7, the shape of the opening may be circular, square, triangular or any shape, or may be a plurality of openings on the same insulating board.
Further, the heat drying treatment may be heat drying.
Compared with the prior art, the utility model has the following beneficial effects:
1) Compared with the non-perforated vacuum insulation panel, the perforated vacuum insulation panel prepared by the utility model has the advantages that the heat conductivity coefficient is slightly increased, but the difference value of the heat conductivity coefficients of the core material and the outer film gas-barrier structure film is reduced to a certain extent, the gradient of the difference value of the heat conductivity coefficients is reduced, the purpose of reducing the heat bridge effect is achieved, the strength of the panel is increased, the compression-resistant and fracture-resistant mechanical property of the vacuum insulation panel is improved, and the production price of the vacuum insulation panel is greatly reduced.
2) The perforated vacuum insulation panel can be manufactured by adopting a pre-perforation process, so that the heat insulation performance of the vacuum insulation panel is effectively maintained while perforation is carried out, and the service life of the perforated vacuum insulation panel is prolonged. The pre-perforating process avoids damage to the heat insulation plate caused by conventional perforating and ensures the air tightness of the heat insulation plate. The prefabricated process of the open holes can also ensure the established design (flat plate, arc, circular tube and the like) of the vacuum insulation panel, and reduce the heat bridge effect caused by the conventional open holes and module splicing; one side of the air isolation structure bag is smooth, the number of folded edges is reduced, the appearance of the heat insulation plate is smooth, air leakage points are reduced, and the air leakage probability is reduced. The technology can ensure the strength and the flatness of the open-pore vacuum insulation panel.
3) The open pore vacuum insulation panel prepared by the utility model can be used in heat insulation system equipment and other equipment needing open pore. The open-pore vacuum heat-insulating plate widens the application occasions, solves the problems of air tightness and flatness of the surface of the open-pore heat-insulating plate, prolongs the service life and reduces the influence of a heat bridge of the whole heat-insulating plate.
Drawings
Fig. 1 is a schematic structural view of a conventional flat plate-shaped vacuum insulation panel.
Fig. 2 is a cross-sectional view of a conventional flat plate-shaped vacuum insulation panel.
Fig. 3 is a schematic structural view of the open-pore vacuum insulation panel according to the present utility model.
Fig. 4 is a cross-sectional view of an open-celled vacuum insulation panel according to the present utility model.
Fig. 5 is a schematic view of an open cell vacuum insulation panel according to the present utility model without openings.
Fig. 6 is a cross-sectional view of an open cell vacuum insulation panel according to the present utility model without openings.
Reference numerals illustrate:
1. the air-isolation structure heat-seals the lip edge; 2. a gas barrier structural membrane; 3. a porous dielectric core material; 4. a gas adsorbing material; 5. and (5) opening holes.
Detailed Description
The utility model will now be described in detail with reference to the drawings and specific examples. The following examples will assist those skilled in the art in further understanding the present utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications in the shape of the openings can be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present utility model.
In the technical scheme, the characteristics of preparation means, materials, structures or composition ratios and the like which are not explicitly described are regarded as common technical characteristics disclosed in the prior art.
The conception history of the applicant is as follows: the vacuum insulation panel is generally made into a flat plate shape, cannot be made into a small size (the size is too small, the edge thermal bridge is aggravated, the heat insulation performance is affected, and even the vacuum insulation panel cannot be disabled), and the vacuum insulation panel cannot be cut, cut and punched in the use process, and cannot be bent, stretched, compressed to change the shape, the size, the specification and the like; the folds of the air-isolation structure film bag are too many, and the folds can bring mechanical stress to the air-isolation structure film or cause air leakage of the air-isolation structure film, so that the risk of air leakage is increased. These limitations greatly limit the popularization and application of vacuum insulation panels. With the demand of engineering on heat insulating materials, vacuum insulation panels with open pore structures meet the market needs. At present, a method for reducing the whole size of the heat insulation plate or splicing modules of the special-shaped vacuum heat insulation plate is mainly adopted to meet the requirements of special scenes. However, the two methods can aggravate the integral thermal bridge of the vacuum insulation panel due to the reduction of the size; the method of adopting the special-shaped vacuum insulation panel splicing module meets the hole scene requirement, not only increases the manufacturing procedure and cost of a single vacuum insulation panel, but also aggravates heat leakage at the splicing position, so that the heat insulation performance of the vacuum insulation panel is greatly reduced. Therefore, how to conveniently produce the vacuum insulation panel meeting the requirements, and how to conveniently produce the vacuum insulation panel without damaging the internal structure of the vacuum insulation panel, reduce the thermal bridge effect of the perforated vacuum insulation panel, and prolong the life cycle of the perforated vacuum insulation panel is a neck clamping problem which needs to be overcome, and the applicant designs the pre-perforated vacuum insulation panel. The vacuum insulation panel mainly comprises an inner core material with pre-opened holes and an outer gas-barrier structure film. The internal core material with the preset holes can be fiber felts such as glass fiber felts, glass fiber papers, flame surfaces, ceramic fiber felts or combinations of materials, etc., particle pressed plates with the preset holes such as aerogel plates, etc., foam material plates with holes, extruded plates, porous polyurethane foam plates with holes, etc., or plates with multiple overlapped materials. The membrane material can be a metal plastic gas-barrier structure membrane, a plastic membrane, a ceramic coating film and the like. In the manufacturing process, the core material after pre-perforated pretreatment (preheating, dedusting and dehumidifying) is placed in a membrane bag with a sealed air-isolation structure on three sides, and is placed in a vacuum packaging machine together for vacuumizing. The vacuum packaging machine can fully vacuumize the inner core material, so that the outer air-isolation structure is completely attached to the surface of the inner core material. Then, reinforcing and heat-sealing the groove at the opening of the processed vacuum heat-insulating plate by using auxiliary heat-sealing equipment, then opening the air-insulating structure, and further adding protective accessories (snap fasteners and the like). The pre-perforated vacuum insulation panel is manufactured by adopting a pre-perforation process, so that the thermal bridge effect caused by conventional perforation and module splicing is reduced, the heat insulation performance of the vacuum insulation panel is effectively maintained while perforation is carried out, the thermal bridge effect is reduced, and the service life of the vacuum insulation panel is prolonged. The porous medium core material is manufactured by adopting a pre-opening process, so that the heat insulation performance of the vacuum heat insulation plate is effectively maintained while the holes are formed; the air-isolation structure film adopts a heat sealing technology that one side is flat and one side is buckled, so that the number of folded edges is reduced, the crease leakage rate is reduced, the edge heat bridge effect is small, and the service life of the air-isolation structure film is prolonged. The core material pre-opening technology avoids the damage of the conventional opening to the vacuum insulation panel and ensures the air tightness of the vacuum insulation panel. The prefabricated perforated core material can also ensure the expected design of the vacuum insulation panel, reduces the thermal bridge effect caused by conventional perforation or module splicing, can be used in heat insulation system equipment and other equipment needing perforation, widens the application occasions, solves the problems of integral air tightness and flatness of the perforated vacuum insulation panel, prolongs the service life and reduces the thermal bridge influence of the integral vacuum insulation panel.
In the following examples, the starting materials used were all commercially available.
The utility model takes a round open-pore vacuum insulation panel as an embodiment, and the preparation method of the open-pore vacuum insulation panel is described with reference to figures 3 and 4, and the specific implementation steps are as follows:
s1, reasonably designing the specification of a vacuum insulation panel according to actual needs, wherein the shape of an opening of a core material is round, the dimension engineering convention is adopted, and the thickness of the vacuum insulation panel is generally 5-40mm; after the required thickness of the vacuum insulation panel is determined, the compression ratio of the porous medium core material 3 after vacuumizing is considered, so that the proper thickness of the porous medium core material 3 can be obtained;
s2, according to the size of the designed porous medium core material 3, starting to manufacture the porous medium core material 3 with holes, comprising the following substeps:
s21, carrying out opening treatment on the porous medium core material 3 to be opened to obtain an opened porous medium core material 3;
s22, placing the porous medium core material 3 with the holes in a pretreatment device, and heating and drying to remove residual moisture or water vapor in the porous medium core material 3;
s3, pre-cutting the gas-barrier structure film 2 into a rectangle according to the size parameters of the porous medium core material 3 with the prefabricated holes, and heat-sealing three edges of the gas-barrier structure film 2 by heat-sealing equipment to manufacture a packaging bag of the gas-barrier structure film 2, wherein the upper and lower two gas-barrier structure films 2 are completely cut and manufactured;
s4, after the packaging bag of the air-isolation structure film 2 is manufactured, taking out the porous medium core material 3 with the holes which are heated and dried, then placing the porous medium core material in the packaging bag of the air-isolation structure film 2, adjusting the position of the porous core material in the packaging bag of the air-isolation structure film 2, placing the packaging bag in vacuum heat-seal packaging equipment, and placing the non-heat-sealed edges of the packaging bag of the air-isolation structure film 2 on a heat seal to be pressed and fixed;
s5, vacuumizing the perforated vacuum insulation panel, and heat-sealing the fourth edge, wherein the specific process is as follows:
s51, processing and trimming the peripheral edges of the air-isolation structure after heat sealing of the open-hole vacuum heat-insulating plate, and heat-sealing again by using external heat-sealing equipment under the condition that the lip edge of the fourth edge is too wide;
s52, cutting off the overlong lip of the vacuum insulation panel. The width of the preformed lip of the vacuum insulation panel is generally not less than 1 cm, preferably more than 1.5 cm.
S6, at the position of the vacuum insulation panel opening after processing, the two layers of air-isolation structural films 2 are attracted together, and the heating equipment is adopted for uniform hot-melt heat sealing, and the specific process is as follows: and opening and preheating the heat sealing device to a preheating temperature, uniformly heat-sealing the concave opening of the processed vacuum heat insulation plate, uniformly heat-sealing the two layers of the gas-barrier structure films 2 which are sucked together by hot melting, and applying a certain pressure when necessary.
S7, marking a circular opening shape on the gas-barrier structural film 2 at the concave opening position according to the principle of gradually expanding from the center to the edge, then mechanically and circularly opening the hole by using a tool, reserving a lip (the gas-barrier structural heat-sealing lip 1) so as to avoid air leakage, and finally manufacturing the open-pore vacuum insulated panel, wherein the lip width of the gas-barrier structural heat-sealing lip 1 is generally not less than 1 cm, preferably more than 1.5 cm.
The porous medium core material 3 is provided with a gas adsorbing material 4.
One side of the air-isolation structure film 2 is of a flat design.
The open pore vacuum insulation panel prepared by the embodiment comprises an inner porous medium core material 3, an outer gas-barrier structure film 2 and an open pore 5; the inner and outer edges of the upper and lower gas-barrier structure films 2 are connected; the porous medium core material 3 is arranged in the upper and lower gas-barrier structure films 2; the open hole 5 penetrates through the open hole vacuum insulation panel; the joint of the upper and lower air-isolation structure films 2 forms an air-isolation structure heat-sealing lip 3; one of the upper and lower air-isolation structure films 2 is flat and has no wrinkles.
The porous medium core material 3 can be fiber felt, such as glass fiber felt, glass fiber paper, flame surface, ceramic fiber felt or a combination of materials, etc., or can be a particle pressing plate with prefabricated holes, such as aerogel plate, etc., or can be a foaming material plate with holes, an extruded plate, a microporous polyurethane foaming plate with holes, etc., or can be a plate with multiple overlapped materials; the gas-barrier structure film 2 can be one of a metal plastic gas-barrier structure film, a plastic film and a ceramic coating film; the shape of the opening of the open-pore vacuum insulation panel is not limited to the circular opening 5, and can be any shape such as a polygon.
Comparative example
This comparative example provides a conventional vacuum insulation panel, which is composed of a porous medium core material 3, a gas barrier structure film 2 which surrounds the porous medium core material 3 while maintaining the internal vacuum degree, and a gas adsorbing material 4 (getter or desiccant), as shown in fig. 1 and 2. However, the conventional vacuum insulation panel is generally made into a flat plate shape, the middle position of the heat sealing lip 4 of the air insulation structure in the thickness direction is provided with 24 folds, the plate cannot be made too small (the size is too small, the edge heat bridge is aggravated, the heat insulation performance is affected, and even the plate cannot be disabled), and the plate cannot be cut, cut and punched in the use process, and cannot be bent, stretched, compressed to change the shape, the size and the like.
One of the technical points of the perforated vacuum insulation panel of the embodiment is that one side of the air-insulating structure film 2 is of a flat design, if no holes are formed (as shown in fig. 5 and 6), the number of folds is reduced to 12, the heat bridge effect and the air leakage rate effect of the folds are greatly reduced, the heat insulation performance can be improved, and the service life can be prolonged. The second technical point is that the pore-forming technology is core material pre-pore-forming and gas-barrier structure film post-treatment. The technology can be applied to the flat vacuum insulation panels, and the derivative technology after the technology is adopted can also be applied to the vacuum insulation panels such as cylindrical, square or polygonal pipelines, prismatic tables and the like.
Embodiments of the utility model are described so as to enable one of ordinary skill in the art to make and use the utility model. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present utility model is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present utility model.
Claims (10)
1. An open-pore vacuum insulation panel is characterized by comprising an inner open-pore porous medium core material (3), an outer gas-barrier structure film (2) and an open pore (5);
the inner and outer edges of the upper and lower air-isolation structure films (2) are connected;
the porous medium core material (3) is arranged in the upper and lower gas-barrier structure films (2);
the open hole (5) penetrates through the open hole vacuum insulation panel;
the joint of the upper and lower air-isolation structure films (2) forms an air-isolation structure heat-sealing lip (1);
one of the upper and lower air-isolation structure films (2) is flat and has no wrinkles.
2. An open-celled vacuum insulation panel according to claim 1, characterized in that the porous dielectric core material (3) is a combination of one or more of a fibrous felt, a particle pressboard, a foam board.
3. An open-celled vacuum insulation panel according to claim 1, wherein the gas barrier structural film (2) is a combination of one or more of a metal film, a metallized composite film and a multilayer polyester-based plastic film.
4. An open-cell vacuum insulation panel according to claim 1, characterized in that the edge of the open cell (5) of the open cell vacuum insulation panel is additionally provided with a protective material;
the protective material is a primary and secondary buckle, a plastic buckle or a clamping groove.
5. An open-celled vacuum insulation panel according to claim 1 wherein the gas barrier structure heat seal lip (1) is not less than 1 cm.
6. An open-celled vacuum insulation panel according to claim 1, characterized in that the shape of the opening (5) is circular, square, triangular.
7. An open-celled vacuum insulation panel according to claim 1, characterized in that the edges of the upper and lower gas barrier films (2) are heat-fused.
8. An open-celled vacuum insulation panel according to claim 1, characterized in that the open-celled vacuum insulation panel is provided with one or more openings (5).
9. An open-celled vacuum insulation panel according to claim 1, wherein the porous dielectric core material (3) is provided with a gas adsorbing material (4) therein.
10. An open-celled vacuum insulation panel according to claim 1, wherein the porous dielectric core material (3) is a pre-apertured porous dielectric core material (3);
the pre-perforated porous medium core material (3) is encapsulated in the outer gas-barrier structure membrane (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321497403.2U CN219912250U (en) | 2023-06-13 | 2023-06-13 | Perforated vacuum heat insulation plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321497403.2U CN219912250U (en) | 2023-06-13 | 2023-06-13 | Perforated vacuum heat insulation plate |
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| Publication Number | Publication Date |
|---|---|
| CN219912250U true CN219912250U (en) | 2023-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321497403.2U Active CN219912250U (en) | 2023-06-13 | 2023-06-13 | Perforated vacuum heat insulation plate |
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| Country | Link |
|---|---|
| CN (1) | CN219912250U (en) |
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