CN201628052U - A vacuum insulation panel - Google Patents

Abstract

The utility model relates to a vacuum heat insulation panel, which comprises a high-barrier packaging bag and a heat-insulating core material. The heat-insulation core material is arranged in a vacuum-sealed bag made of the high-barrier packaging material. A getter, a hole is opened on the surface of the vacuum insulation panel, and a hole structure is installed in the hole. The hole structure is a tubular profile with high barrier performance, and the hole structure and the high barrier The packaging bags are welded or bonded together to form the vacuum-sealed chamber together. Compared with the prior art, the appearance of the vacuum insulation panel of the utility model is smooth after opening, eliminates the occurrence of wrinkles, reduces the air flow at the folds of the high-barrier packaging bag, and prolongs the life of the vacuum insulation panel; The mechanical strength of the opening is high, and the vacuum insulation panel can be connected and installed with other materials by using rivets at the opening, which makes the utilization of the vacuum insulation panel more convenient and expands its application range.

Description

A vacuum insulation panel

technical field

The utility model relates to a vacuum insulation panel.

Background technique

Vacuum insulation panels are composed of surface high-barrier packaging bags, core materials, getters or adsorbents. By increasing the internal vacuum degree, the gas remaining in the heat-insulating space is removed, so that various heat transfer paths caused by the gas are eliminated to isolate heat conduction, so as to achieve the purpose of thermal insulation and energy saving.

Vacuum insulation panel is a new type of thermal insulation material that integrates high efficiency and energy saving, and is an upgraded product of thermal insulation materials. Compared with traditional insulation materials such as polyurethane foam, vacuum insulation panels do not use 0DS substances in their production and application process, and have low thermal conductivity. They have the dual advantages of environmental protection and energy saving, and are widely used in refrigerators, freezers, refrigerated vehicles, Containers, cold storage and other low-temperature cryogenic fields and the insulation field of the home appliance industry. When the vacuum insulation panel is used as the insulation layer of the refrigerator, the thickness of the vacuum insulation panel can be reduced to half or even less than that of ordinary refrigerator insulation materials, which not only increases the effective use of space in the refrigerator, but also saves about 30% of electric energy. At present, the design and production of VIP has become mature, and most domestic and foreign refrigerator freezer manufacturers are actively developing and applying VIP boards.

In recent years, vacuum insulation panels for buildings have appeared in Germany and Switzerland, and the construction market for applying vacuum insulation panels has gradually been established in Germany and Switzerland. So far, there have been dozens of engineering examples for building thermal insulation. It is estimated that in EU countries, only the use of vacuum insulation panels in energy-saving renovation of old buildings and energy-saving implementation of new buildings can reduce CO2 emissions of buildings by 8%. In addition, the consumables of vacuum insulation panels are also less than that of general insulation materials. Therefore, the development and application of vacuum insulation panels in buildings can not only save energy and save a lot of resources, but also play an important role in promoting the intensification and environmental protection of the construction industry. meaning.

Regardless of the application of vacuum insulation panels in any field, there are certain limiting factors. In the field of building wall insulation, insulation materials and wall fixing are required, so that the vacuum insulation panels will not be mechanically traumatized during application; in the home appliance industry such as water heaters, refrigerators, solar water heaters, etc. Position openings are used to install incoming and outgoing fluid pipes, power lines, signal lines, etc. on both sides of the heat shield. Traditional vacuum insulation panels have problems such as difficulty in processing holes, easy wrinkling of high-barrier packaging materials at the opening after opening, poor strength, and easy damage and air leakage. Therefore, how to prepare a vacuum insulation panel with holes of a certain size on the panel surface is an urgent problem to be solved.

Utility model content

The main purpose of the utility model is to overcome the disadvantage of difficulty in opening holes in the vacuum insulation panel of the prior art, improve a vacuum insulation panel with holes on the surface, and completely solve the problems of poor strength, wrinkles and easy damage after the vacuum insulation panel is opened. .

The utility model adopts following technical scheme:

A vacuum insulation panel, comprising a high-barrier packaging bag and a heat-insulating core material, the heat-insulating core material is placed in a vacuum-sealed bag made of the high-barrier packaging material, and a getter is arranged in the heat-insulating core material, A hole is opened on the surface of the vacuum insulation panel, and a hole structure is installed in the hole. The hole structure is a tubular profile with high barrier performance,

The perforated structural member is welded or glued together with the high-barrier packaging bag to jointly form the vacuum-sealed cavity. The high-barrier packaging bag is an aluminum-plastic composite material composed of multiple layers of soft plastic film and aluminum foil; the getter is an irreversible getter. The holes of the perforated structure can be circular, square, triangular or any other shape and size according to actual needs.

Further, the open-pore structural member is metal, glass, nylon, polyimide, polyethylene, polyvinyl alcohol or other high-barrier profiles.

Further, the perforated structure is directly welded or bonded to the high-barrier packaging bag, or is welded or bonded to the high-barrier packaging bag by a layer of welding material or an adhesive material layer.

Further, the heat insulation core material is a single core material or a composite core material. The single core material can be phenolic foam material, polyurethane foam material, silica powder, glass wool, aluminum silicate or rock wool, etc.; the composite core material can be hard phenolic or polyurethane foam plastic powder or silicon dioxide Thermal insulation support composite material composed of powder and inorganic fibers such as ultra-fine glass wool or ultra-fine rock wool.

Preferably, the composite core material is composed of components in the following weight ratio: ultra-fine glass wool: centrifugal wool = 100: 1-50; or ultra-fine glass wool: mineral wool = 100: 1-60; or ultra-fine Glass wool: centrifugal wool: mineral wool = 100:1~30:1~50. The core material is manufactured by mixing centrifugal wool and/or mineral wool into ultrafine glass wool, and since the price of centrifugal wool and mineral wool is relatively low compared with that of ultrafine glass wool, it is different from the single ultrafine glass wool used in the prior art. Compared with the manufactured core material and the vacuum insulation panel, the production cost is significantly reduced, while still retaining the advantages of high strength and low thermal conductivity.

Preferably, the wall thickness of the opening structure is 5-15mm.

From the above description of the utility model, it can be seen that a vacuum insulation panel of the utility model has the following beneficial effects:

1. The appearance of the vacuum insulation panel manufactured by the utility model is smooth after opening, eliminating the occurrence of wrinkles, reducing the air flow at the folds of the high barrier packaging bag, and prolonging the life of the vacuum insulation panel;

Second, the mechanical strength of the vacuum insulation panel manufactured by the utility model is relatively high after the hole is opened, and the vacuum insulation panel can be connected and installed with other materials by using rivets at the opening, so that the utilization of the vacuum insulation panel is more convenient. expand its scope of use;

3. The manufacturing method of the vacuum insulation panel of the present invention is simple and flexible, and holes of any shape and size can be opened at any position of the vacuum insulation panel, and the high-barrier packaging bag at the opening is reliable and easy to operate.

Description of drawings

Fig. 1 is a schematic cross-sectional structure diagram of a first embodiment of the utility model;

Fig. 2 is a top view structural schematic diagram of Embodiment 1 of the utility model;

Fig. 3 is a schematic cross-sectional structure diagram of a second embodiment of the utility model;

Fig. 4 is a top view structural schematic diagram of the second embodiment of the utility model;

Fig. 5 is a schematic diagram of the three-dimensional structure of the perforated structural member of Embodiment 1 of the present utility model;

Fig. 6 is a schematic perspective view of the three-dimensional structure of the opening structure in Embodiment 2 of the present invention.

Detailed ways

Specific implementation mode one

Referring to Fig. 1, Fig. 2 and Fig. 5, a vacuum insulation panel of the present invention includes a high-barrier packaging bag 10, a heat-insulating core material 20 and an opening structure 40, and the heat-insulating core material 20 is arranged in a high-barrier packaging bag In the vacuum-sealed cavity formed by 10 and the opening structure 40, a getter 30 is arranged in the heat-insulating core material 20. The preparation of the vacuum insulation panel includes the following steps:

Step 1, according to the thickness and hole size of the required perforated vacuum insulation panel, take a high-barrier profile with the same thickness, and the upper and lower surfaces of the high-barrier profile are compounded with materials that can be thermally fused with the high-barrier packaging bag 10; The heat insulation board needs to open the aperture of the round hole, cut the high barrier profile into a cylinder, the inner diameter is the diameter of the hole required for the vacuum insulation board, the outer diameter is 10-30mm longer than the inner diameter, and the opening structure 40 is completed;

Step 2: Select a laminated core material with an appropriate thickness, cut it according to the length and width of the required vacuum insulation panel, and then dig holes in the core material according to the outer diameter of the opening structure 40 and the position of the required opening. Cut the core material out to the size of the inner diameter of the perforated structural member 40, and fill the perforations of the perforated structural member 40; open a slot for placing the getter 30 on the core material, and the slot is opened in the middle layer On the core material, the position is closer to the sealing edge 11, and the size of the slot is the outer size of the getter 30;

Step 3: Put the holed core material in a heat treatment furnace and heat it up to a maximum temperature of 120-160°C; when the temperature rises to the set value of 120-160°C, keep it warm for 5-10 minutes, then turn on the heat treatment furnace to The core material is taken out, and the core material is standby after heat treatment;

Step 4: Put the opening structure 40 into the opening on the core material after heat treatment, put the core material into the high-barrier packaging bag 10 according to the thickness requirements of the core material, and put the getter 30 into the Getter slot.

Step 5, put the high-barrier packaging bag 10 with the opening structure 40, the getter 30 and the core material 20 into the pre-set vacuum sealing machine for vacuuming and sealing, and finally open the vacuum sealing machine, take out Vacuum insulation panels;

Step 6: heat-weld the upper and lower surfaces of the opening structural member 40 of the vacuum insulation panel obtained in step 5 with the high-barrier packaging bag 10 to form a welded layer 42, and place the high-barrier packaging bag 10 in the opening structural member 40 Partially cut off, and the core material filled in the perforated structural member 40 is taken out to obtain a vacuum insulation panel with holes on the panel surface.

Specific implementation mode two

Referring to Fig. 3, Fig. 4 and Fig. 6, a vacuum insulation panel of the present invention includes a high-barrier packaging bag 10, a heat-insulating core material 20 and an opening structure 40, and the heat-insulating core material 20 is arranged in the high-barrier packaging bag In the vacuum-sealed cavity formed by 10 and the opening structure 40, a getter 30 is arranged in the heat-insulating core material 20. The preparation of the vacuum insulation panel includes the following steps:

Step 1: According to the thickness of the vacuum insulation panel with square holes, select a high-barrier profile with the same thickness, and cut the high-barrier profile into a frame according to the size of the square hole required by the vacuum insulation panel, and the inner side length is required by the vacuum insulation panel The side length of the square hole, the outer side length is 10-30mm longer than the inner side length, and the opening structural part 40 is completed;

Step 2: Cut the core material used according to the required size, open holes in the corresponding position of the core material according to the size of the opening structure 40, and place the getter at the position near the sealing edge 11 of the middle layer core material 30 slots;

Step 3: Put the holed core material in a heat treatment furnace and heat it up to a maximum temperature of 120-160°C; when the temperature rises to the set value of 120-160°C, keep it warm for 5-10 minutes, then turn on the heat treatment furnace to The core material is taken out, and the core material is standby after heat treatment;

Step 4, put the perforated structural member 40 into the perforated core material after heat treatment, put the core material into the high-barrier packaging bag 10 according to the thickness requirement, and place the perforated structural member 40, The lower surface is coated with adhesive 42, and a certain pressure is applied on the upper and lower surfaces of the high-barrier packaging bag 10 and the perforated structure 40 to make them fully bonded, and the high-barrier packaging bag 10 is placed on the perforated structure. The part in the part 40 is cut off, and then the getter 30 is packed into the getter slot;

Step 5, put the high-barrier packaging bag 10 with the opening structure 40, the getter 30 and the core material 20 into the pre-set vacuum sealing machine for vacuuming and sealing, and finally open the vacuum sealing machine, take out The vacuum heat insulation panel obtains the vacuum heat insulation panel with holes on the board surface.

The above are only two specific implementations of the present utility model, but the design concept of the present utility model is not limited thereto, and any insubstantial changes made to the utility model by using this concept should belong to violations of the protection scope of the present utility model Behavior.

Claims (5)

1. vacuum heat-insulating plate, comprise high-barrier package bag and insulated core material, this insulated core material is placed in the made vacuum seal bag of this high-barrier packaging material, be provided with getter in this insulated core material, it is characterized in that: perforate on the plate face of this vacuum heat-insulating plate, in this hole, open-celled structure spare is installed, this open-celled structure spare is for having high obstructing performance tubulose section bar, this open-celled structure spare and described high-barrier package bag welding or bond together constitute described vacuum-sealed cavity jointly.

2. a kind of vacuum heat-insulating plate as claimed in claim 1 is characterized in that: described open-celled structure spare is metal, glass, nylon, polyimide, polyethylene, polyvinyl alcohol or other high-barrier section bar.

3. a kind of vacuum heat-insulating plate as claimed in claim 1 is characterized in that: the direct and described high-barrier package bag welding or bonding of described open-celled structure spare, or by a melted material layer or layer of adhesive material and this high-barrier package bag welding or bonding.

4. as claim 1 or 2 or 3 described a kind of vacuum heat-insulating plates, it is characterized in that: described insulated core material is single core or composite core material.

5. as claim 1 or 2 or 3 described a kind of vacuum heat-insulating plates, it is characterized in that: the wall thickness of described open-celled structure spare is 5-15mm.

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