CN115157814B - Light-adjusting inner suspension film - Google Patents
Light-adjusting inner suspension film Download PDFInfo
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- CN115157814B CN115157814B CN202210916315.5A CN202210916315A CN115157814B CN 115157814 B CN115157814 B CN 115157814B CN 202210916315 A CN202210916315 A CN 202210916315A CN 115157814 B CN115157814 B CN 115157814B
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- 239000000725 suspension Substances 0.000 title claims abstract description 125
- 229910001316 Ag alloy Inorganic materials 0.000 claims abstract description 118
- 239000000758 substrate Substances 0.000 claims abstract description 42
- 238000013329 compounding Methods 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 293
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 96
- 239000011787 zinc oxide Substances 0.000 claims description 48
- 239000000463 material Substances 0.000 claims description 37
- 239000011241 protective layer Substances 0.000 claims description 35
- 239000011521 glass Substances 0.000 claims description 23
- 229920006267 polyester film Polymers 0.000 claims description 23
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 21
- 239000010936 titanium Substances 0.000 claims description 21
- 229910052719 titanium Inorganic materials 0.000 claims description 21
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 17
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 12
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 7
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 6
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims description 5
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 5
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 5
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 5
- -1 polydimethylsiloxane Polymers 0.000 claims description 5
- 229920001223 polyethylene glycol Polymers 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 238000009413 insulation Methods 0.000 abstract description 21
- 230000006870 function Effects 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 12
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- 238000004519 manufacturing process Methods 0.000 description 7
- 229910052709 silver Inorganic materials 0.000 description 7
- 239000002131 composite material Substances 0.000 description 6
- 239000012790 adhesive layer Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- 229910052763 palladium Inorganic materials 0.000 description 5
- 229920002799 BoPET Polymers 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 229910003437 indium oxide Inorganic materials 0.000 description 4
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 4
- 229910044991 metal oxide Inorganic materials 0.000 description 4
- 150000004706 metal oxides Chemical class 0.000 description 4
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- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000001723 curing Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000002985 plastic film Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
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- 230000000149 penetrating effect Effects 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 239000004983 Polymer Dispersed Liquid Crystal Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
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- 229920005549 butyl rubber Polymers 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
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- 238000002474 experimental method Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
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- 239000002808 molecular sieve Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
- B32B2250/244—All polymers belonging to those covered by group B32B27/36
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/202—Conductive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/304—Insulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/416—Reflective
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2419/00—Buildings or parts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The application discloses a dimming inner suspension film, which comprises an inner suspension film substrate and at least one silver alloy layer formed on the inner suspension film substrate, wherein a dimming layer, an outer conductive layer and an outer substrate layer are sequentially formed on the outer surface of the silver alloy layer in a compounding manner. The application uses the conductive function of the silver alloy layer used as the reflecting layer as the inner conductive layer of the light adjusting structure. The inner suspension film substrate and the silver alloy layer form a heat insulation structure for reflecting and isolating heat, and meanwhile, the silver alloy layer, the light adjusting layer on the outer side of the silver alloy layer, the outer conductive layer and the outer substrate layer form a light adjusting structure for realizing a light adjusting function. In addition, the dimming structure is finally supported by the heat insulation structure, so that a stable supporting surface is obtained through the heat insulation structure.
Description
Technical Field
The application relates to a hollow heat-insulating glass door and window in the field of energy-saving buildings, in particular to a light-adjusting inner suspension film.
Background
The light control film is a film that controls the change of light transmittance by electricity. The basic principle is that a liquid crystal/polymer mixed material is injected between two transparent conductive films, and under the action of an electric field applied between the two transparent conductive films, the dielectric polarities of the liquid crystal material tend to be consistent, so that the liquid crystal material is converted from an opaque state to a transparent state. For information on the basic principle of the light modulation film, reference may be made to CN 109791816B, CN 109765718A, CN 113195214A, CN 112269284A, etc. The light control film is usually applied as a window film to the surface of a transparent material such as transparent glass, so that the transparency of the material can be controlled electrically. The main component for controlling the light transmittance in the light-adjusting film is a transparent conductive film, and the conductive layer on the conductive film is usually made of materials such as indium tin oxide with relatively high brittleness, has poor bending resistance and is easy to crack, and the thickness and the transparency are required to be coordinated.
The inner suspension film is formed by adding one or more layers of transparent plastic films into the inner cavity of the hollow glass door and window, and the inner cavity of the hollow glass is isolated into a plurality of mutually independent spaces through the plastic films, so that the convection of the temperature difference between the inside and the outside of the hollow glass can not be realized, and the hollow glass door and window has excellent energy-saving effect while the weight of the structure is reduced.
The transparent state of the inner suspension film door and window can be controlled and changed by electricity by replacing the inner suspension film used between the hollow heat-insulating glass door and window with the light-adjusting film. However, the use of a general light modulation film as an inner suspension film has several problems. Firstly, the conductive layer of the light modulation film is relatively brittle and has poor bending resistance and stretching resistance, so that the conductive layer is usually stuck on the surface of materials such as glass, the light modulation film is supported by the glass, the support is lost after the conductive layer is used as an inner suspension film, the conductive function is easily lost, and the durability is poor. Secondly, the dimming film lacks the functions of reflecting light and insulating heat, and is difficult to play the role of the inner suspension film.
In addition, for the inner suspended film door and window, the thermal expansion coefficient of the inner suspended film clamped between two pieces of glass is larger than that of the glass, so that the inner suspended film tends to be gradually loosened in the use process, and the loosened inner suspended film is inconsistent in the refraction direction of light, so that the scene outside the observation chamber of the glass door and window can generate visual deformation due to refraction. In order to maintain the parallel transmission of light rays to avoid visual distortion, the inner suspension film needs to be installed in a tensioned state between the hollow glasses. The inner suspension film in a tensioned state is deformed in the lateral direction.
The inner suspension film for the inner suspension film door and window is usually required to be made of a plastic film with good heat resistance and insulation effects. However, even the common window film is difficult to adapt to the tensioning and stretching application environment of the inner suspension film. For example, CN 106435497A discloses a gold window film, which is sequentially from inside to outside: a flexible transparent PET substrate layer;from Si 3 N 4 A first high refractive index layer formed; a first metal oxide layer composed of ZnO and Al; a first silver alloy layer composed of 98% Ag and 2% Pd; a first barrier layer composed of Si; from Nb 2 O 5 A second high refractive index layer; forming a second metal oxide layer from ZnO and Al; a second silver alloy layer composed of 98% Ag and 2% Pd; forming a second barrier layer from Si; from Si 3 N 4 And a third high refractive index layer is formed. The prior art particularly indicates that the color of the golden window film and the functions of effectively reflecting infrared rays and ultraviolet rays and improving the heat insulation performance of the window film are mainly brought by a compact silver alloy layer, the compactness of the silver alloy layer can be realized by a ZnO: al metal oxide layer with a thickness of a few nanometers, and the ZnO: al layer with a thickness of a few nanometers can promote the growth of a subsequent silver alloy layer to enable the subsequent silver alloy layer to grow into a continuous compact structure as soon as possible, so that the thickness of the subsequent silver alloy layer is obviously reduced, and the light transmittance of the window film is improved. However, the ZnO film layer formed by growth in a magnetron sputtering mode has the characteristic of high vertical crystallization, is very sensitive to transverse deformation, and is easy to generate longitudinal cracks under the action of transverse tensile force, so that the metal silver film layer attached to the surface of the ZnO film layer is cracked, and the light transmittance and the reflection performance of the window film are affected. Therefore, the window film with the silver-containing metal layer in the prior art can be adhered on a flat and firm glass surface for use, and is difficult to apply to the field of inner suspension films.
Therefore, the common dimming film with poor stretching resistance is more difficult to adapt to the tensioning stretching application environment of the inner suspension film. Therefore, it is difficult to directly convert to obtain an inner suspension film having both a dimming function and low stretch cracking on the basis of a general window film and an inner suspension film.
Disclosure of Invention
The present application is directed to a light-adjusting inner suspension film, which reduces or avoids the above-mentioned problems.
In order to solve the technical problems, the application provides a dimming inner suspension film which is used for being installed in a tensioning frame clamped between two layers of glass in a tensioning mode, wherein the dimming inner suspension film comprises an inner suspension film substrate and at least one silver alloy layer formed on the inner suspension film substrate, and a dimming layer, an outer conducting layer and an outer substrate layer are sequentially formed on the outer surface of the silver alloy layer in a compounding mode.
The application also provides a light-adjusting inner suspension film with an improved structure, wherein the light-adjusting inner suspension film comprises two layers of inner suspension film base materials and one silver alloy layer respectively formed on the two layers of inner suspension film base materials, the two layers of inner suspension film base materials and the silver alloy layers on the two layers of inner suspension film base materials are in mirror image configuration, and a light-adjusting layer is arranged between the two opposite silver alloy layers.
Preferably, the inner suspension film base material comprises a polyester film, wherein at least one ZnO Al layer is formed on the outermost side of the polyester film facing the silver alloy layer, and an adhesion layer is formed between the ZnO Al layer and the outermost side of the polyester film; the silver alloy layer comprises a silver alloy base layer, a metal titanium protective layer is formed on the outer side of the silver alloy base layer, and an indium tin oxide protective layer is formed on the outer side of the metal titanium protective layer.
Preferably, the adhesion layer is prepared from the following raw materials in parts by weight: 6-8 parts by weight of polydimethylsiloxane; 1-5 parts of polyurethane; 15-30 parts by weight of vinyl trimethoxy silane; 80-120 parts by weight of isopropanol; 10-20 parts of polyethylene glycol; 1-5 parts of zinc oxide; 0.1-0.5 parts by weight of alumina; 0.1 to 0.5 part by weight of magnesium sulfate.
Preferably, the thickness of the silver alloy base layer is 10-15nm; the thickness of the metal titanium protective layer is 3-6nm; the thickness of the indium tin oxide protective layer is 55-85nm.
Preferably, the thickness of the adhesion layer is 10-20nm; the thickness of the ZnO/Al layer is 3-6nm.
Preferably, two overlapped silver alloy layers are formed on the outer side of the inner suspension film base material, and the two silver alloy layers have the same structure and comprise a silver alloy base layer, a metallic titanium protective layer and an indium tin oxide protective layer.
The application uses the conductive function of the silver alloy layer used as the reflecting layer as the inner conductive layer of the light adjusting structure. The inner suspension film substrate and the silver alloy layer form a heat insulation structure for reflecting and isolating heat, and meanwhile, the silver alloy layer, the light adjusting layer on the outer side of the silver alloy layer, the outer conductive layer and the outer substrate layer form a light adjusting structure for realizing a light adjusting function. In addition, the dimming structure is finally supported by the heat insulation structure, so that a stable supporting surface is obtained through the heat insulation structure.
Drawings
The following drawings are only for purposes of illustration and explanation of the present application and are not intended to limit the scope of the application.
Fig. 1 shows a partially cut-away schematic illustration of an inner suspended membrane door and window according to an embodiment of the application.
Fig. 2 is a schematic view showing the principle of heat insulation of an inner suspension film according to an embodiment of the present application.
Figures 3a-3c show schematic cross-sectional structures of inner suspension films according to three embodiments of the present application, respectively.
Fig. 4 shows an exploded perspective view of a tensioning frame according to an embodiment of the application.
Fig. 5 shows an enlarged partial exploded view of a tensioning frame according to another embodiment of the application.
Fig. 6 is a schematic structural view of a second frame according to an embodiment of the present application.
Fig. 7 shows a schematic structural view of an elastic tensioner according to an embodiment of the present application.
Fig. 8 shows an exploded perspective view of an elastic tensioning device according to yet another embodiment of the present application.
Detailed Description
For a clearer understanding of technical features, objects, and effects of the present application, a specific embodiment of the present application will be described with reference to the accompanying drawings. Wherein like parts are designated by like reference numerals.
As shown in fig. 1, the present application proposes an inner suspended film door and window with a dimming inner suspended film, at least comprising a tensioning frame 3 which is clamped between two layers of glass 1 and is used for tensioning the dimming inner suspended film 2, wherein the tensioning frame 3 and the dimming inner suspended film 2 tensioned thereon can be installed between two layers of glass 1 as a separate component, thus the tensioning problem of the inner suspended film is not needed to be considered when the glass door and window is installed, and the complexity of installation is reduced. Further, in the illustrated embodiment, both sides of the tension frame 3 may be bonded between the two layers of glass 1 by spacer bars 4. For example, the spacer 4 may be an existing composite butyl aluminum spacer, butyl rubber for adhesion is provided on two sides of the spacer 4, and a molecular sieve for adsorbing water vapor may be disposed in a hollow structure inside the spacer 4. As previously mentioned, the light modulating inner suspension film 2 needs to be tensioned between the hollow glasses to keep the light rays transmitted in parallel to avoid visual distortion.
Fig. 2 shows a schematic view of the heat insulation and dimming principle of the dimming inner suspension film according to an embodiment of the present application, illustrating that the dimming inner suspension film 2 includes an inner suspension film substrate 21 and at least one silver alloy layer 22 formed on the inner suspension film substrate 21. The silver alloy layer 22 can realize the functions of high visible light transmission and reflection to most of infrared rays so as to effectively isolate heat. The silver alloy layer 22 also has a conductive function.
By utilizing the conductive function of the silver alloy layer 22 used as the reflecting layer, the application takes the silver alloy layer as the inner conductive layer of the dimming structure, and then the dimming layer 25, the outer conductive layer 243 and the outer substrate layer 24 are sequentially formed on the outer surface of the silver alloy layer 22 in a compounding way. In the schematic diagram shown in the figure, the inner suspension film substrate 21 and the silver alloy layer 22 form a heat insulation structure for reflecting and isolating heat, and at the same time, the silver alloy layer 22 forms a dimming structure for realizing a dimming function together with the dimming layer 25, the outer conductive layer 243 and the outer substrate layer 24 on the outer side thereof. In addition, the dimming structure is finally supported by the heat insulation structure, so that a stable supporting surface is obtained through the heat insulation structure.
The materials, composite molding processes, etc. for the light modulating layer 25, the outer conductive layer 243, and the outer substrate layer 24 may all be well-established techniques, such as those skilled in the art can refer to the prior art disclosures cited in the background section to obtain the light modulating layer 25, the outer conductive layer 243, and the outer substrate layer 24 of the present application.
The principle shown in fig. 2 is simple in construction, but it is also complicated to achieve a long-term stable operation of the dimming and heat-insulating functions. Fig. 3a-3c further show schematic cross-sectional structures of inner suspension films according to various embodiments of the present application, wherein the inner suspension film substrate 21 of the present application has a three-layer composite structure, and comprises a polyester film 211, wherein at least one ZnO: al layer 213 (aluminum-doped zinc oxide layer, aluminum content of not more than 2 wt%) is formed on the outermost side of the polyester film 211 facing the silver alloy layer 22, and an adhesion layer 212 is formed between the ZnO: al layer 213 and the outermost side of the polyester film 211. The ZnO: al layer 213 may be formed on the surface of the adhesion layer 212 by means of single-rotation cathode, direct-current reactive magnetron sputtering.
The silver alloy layer 22 is also a three-layer composite structure, and comprises a silver alloy base layer 221 with the thickness of 10-15nm, a metallic titanium protective layer 222 with the thickness of 3-6nm is formed on the outer side of the silver alloy base layer 221, and an indium tin oxide protective layer 223 (containing 90wt% of indium oxide and 10wt% of tin oxide) with the thickness of 55-85nm is formed on the outer side of the metallic titanium protective layer 222. Wherein, the silver alloy base layer 221 can be formed on the outer side surface of the inner suspension film substrate 21, that is, on the outer side surface of the ZnO: al layer 213 by means of single rotation cathode, direct current reaction magnetron sputtering from 98wt% Ag and 2wt% Pd. The metallic titanium protective layer 222 may be formed on the outer surface of the silver alloy base layer 221 by means of single-rotation cathode, direct-current reactive magnetron sputtering. The indium tin oxide protective layer 223 may be formed on the outer surface of the metallic titanium protective layer 222 by means of dual rotating cathode, intermediate frequency reactive magnetron sputtering.
1. Inner suspension film base material
As described above, the inner suspension film base material 21 adopts a three-layer composite structure including the polyester film 211, the adhesion layer 212, and the ZnO: al layer 213 in this order. The ZnO-Al layer can promote the growth of the subsequent silver alloy layer to enable the subsequent silver alloy layer to grow into a continuous compact structure as soon as possible, thereby obviously reducing the thickness of the subsequent silver alloy layer and improving the light transmittance of the window film. However, the defect of the ZnO/Al layer is that the film layer is crystallized by growing along the vertical direction of the film, and cracks are generated in the transversely stretched state. The inventors found that the probability of crack generation in the case of extreme wrinkles can be reduced by reducing the thickness of the ZnO: al layer, but that the growth rate of the silver alloy layer on the ZnO: al layer and the compactness of the film layer can be simultaneously reduced.
According to the same technical conditions as disclosed in CN 106435497A cited in the background art, a ZnO/Al layer of 3nm to 6nm thickness was formed on a polyester film. The test shows that at a bending diameter of 5 mm, the ZnO: al layer does not substantially crack, but at 10% elongation of the inner suspension film, the ZnO: al layer still has significant cracks. Of course, if a thicker silver alloy layer is formed on the surface of the ZnO: al layer, these cracks can be masked to some extent because the silver alloy layer has a good ductility, and no cracks are revealed when the silver alloy layer is surface-inspected. In this case, there is a contradiction that the thickness of the ZnO: al layer may be reduced in order to reduce cracks, which may result in a reduction in the growth rate of the silver alloy layer, but a thicker silver alloy layer thickness is required to mask the inner layer cracks, and further extension of the growth time of the silver alloy layer is required, thereby further increasing the production cost.
In order to overcome the contradiction, the application arranges the adhesion layer 212 on the inner side of the ZnO Al layer 213, so as to reduce the surface cracks of the inner suspension film substrate and the silver alloy layer thereon by matching the adhesion layer 212 with the ZnO Al layer 213, improve the light transmission performance, and simultaneously improve the growth speed of the silver alloy layer and reduce the processing time and the production cost under the condition of not increasing the thickness of the ZnO Al layer.
Specifically, the adhesion layer 212 is cured by coating on the outer surface of the polyester film 211, and the adhesion layer 212 may be prepared from the following raw materials in parts by weight: 6-8 parts by weight of polydimethylsiloxane; 1-5 parts of polyurethane; 15-30 parts by weight of vinyl trimethoxy silane; 80-120 parts by weight of isopropanol; 10-20 parts of polyethylene glycol; 1-5 parts of zinc oxide; 0.1-0.5 parts by weight of alumina; 0.1 to 0.5 part by weight of magnesium sulfate.
In a specific embodiment, the inner suspension film substrate may be prepared by the steps of the following method.
Firstly, uniformly mixing 10-20 parts by weight of polyethylene glycol and 60-80 parts by weight of isopropanol, and respectively adding 1-5 parts by weight of zinc oxide, 0.1-0.5 part by weight of aluminum oxide and 0.1-0.5 part by weight of magnesium sulfate into the mixed solution, mixing and stirring for 30-60 minutes to prepare the component A.
Then, 6-8 parts by weight of polydimethylsiloxane, 1-5 parts by weight of polyurethane, 15-30 parts by weight of vinyltrimethoxysilane and 20-40 parts by weight of isopropanol are mixed, mixed and stirred for 20-30 minutes, and the viscosity is 200-300 centipoise, so that the component B is prepared.
The adhesive layer 212 is prepared by mixing and stirring the A component and the B mixed component for 20-30 minutes, then coating the surface of at least one side of the polyester film by spin coating or spray coating, and curing at 120-130 ℃ for 2-3 hours.
On the prepared adhesion layer 212, a ZnO: al layer 213 was formed by means of single-rotation cathode, direct-current reactive magnetron sputtering, thereby preparing the inner suspension film base material 21 of the present application.
Further, at least one silver alloy layer 22 may be formed on the outer side of the ZnO: al layer 213 of the inner suspension base material 21 by means of single spin cathode, dc reactive magnetron sputtering.
Still further, the outer substrate layer 24, which is formed with the outer conductive layer 243 in advance, may be coated on the surface of the silver alloy layer 22, and the liquid crystal/polymer mixture material is injected between the silver alloy layer 22 and the outer conductive layer 243 to be cured to form the light modulation layer 25, thereby preparing a light modulation inner suspension film 2 usable in the present application. The materials, manufacturing processes, etc. for the light modulating layer 25, the outer conductive layer 243, and the outer substrate layer 24 may all be well-established techniques, and those skilled in the art may also modify and change the conditions of the present application based on the prior art cited in the background section.
Examples 1 to 3
The adhesive layers 212 were prepared on the surfaces of the polyester films 211, respectively, based on the above preparation methods, according to the weight parts of the raw materials in the following table. The polyester film 211 is a PET film with a light transmittance of 89% and a thickness of 25 μm.
Examples 4 to 6
On the adhesion layers prepared in examples 1 to 3, znO Al layer 213 (aluminum content 1.5wt%, znO content 98.5 wt%) and silver alloy layer 22 (98 wt% Ag, 2wt% Pd) were formed, respectively, by magnetron sputtering in this order, corresponding to examples 4 to 6.
Comparative examples D1 to D3
Referring to the preparation steps of examples 1 to 3, the adhesive layers 212 for comparison were prepared on the surfaces of the polyester films 211, respectively, in the proportions by weight of the raw materials of the following table. The polyester film 211 was a PET film having a light transmittance of 89% and a thickness of 25. Mu.m, corresponding to comparative examples D1 to D3.
Comparative examples D4 to D6
Referring to the preparation steps of examples 1 to 3, the adhesive layers 212 for comparison were prepared on the surfaces of the polyester films 211, respectively, in the proportions by weight of the raw materials of the following table. The polyester film 211 was a PET film having a light transmittance of 89% and a thickness of 25. Mu.m, corresponding to comparative examples D4 to D6.
Comparative examples D7 to D12
On the adhesion layers prepared in comparative examples D1 to D6, znO was formed as a comparison by magnetron sputtering, respectively, an Al layer (aluminum content 1.5wt%, znO content 98.5 wt%) and a silver alloy layer 22 (98 wt% Ag, 2wt% Pd) were formed in this order, corresponding to comparative examples D7 to D12.
| Comparative example | D7 | D8 | D9 | D10 | D11 | D12 |
| ZnO: al layer thickness nm | 3 | 5 | 6 | 3 | 5 | 6 |
| Silver alloy layer thickness nm | 10 | 13 | 15 | 10 | 13 | 15 |
| Average growth rate nm/min of silver alloy layer | 0.1 | 0.15 | 0.05 | 0.5 | 0.51 | 2.5 |
Through the above comparative experiments, the average growth rate of the silver alloy layer is greatly affected by the oxide composition, and particularly, the growth rate is most affected by a very small amount of magnesium sulfate.
The performance parameters of the respective adhesive layer skin layers of the polyester films of examples 1 to 6 and comparative examples D1 to D12 were measured, respectively.
As can be seen by comparing various performance parameters, the application can obviously reduce the surface crack of the inner suspension film base material and improve the light transmission performance by matching the ZnO: al layer with the additional layer arranged on the inner side, and simultaneously improves the growth speed of the silver alloy layer and reduces the processing time and the production cost under the condition of not increasing the thickness of the ZnO: al layer.
In addition, excessive addition of metal oxide can reduce the transparency of the film, so that cracks are easily generated on the surface of the ZnO-Al layer, and the surface quality of the silver alloy layer and the product quality are further influenced. Further tests show that the addition of a small amount of polyurethane is beneficial to maintaining the bonding strength of the silver alloy layer and the ZnO-Al layer and avoiding layering of the silver alloy layer and the ZnO-Al layer.
2. Silver alloy layer
As described above, the silver alloy layer 22 adopts a three-layer composite structure including, in order, the silver alloy base layer 221, the metallic titanium protective layer 222, and the indium tin oxide protective layer 223. The three layers have conductivity, and the ZnO of the inner suspension base material 21 combined with the innermost silver alloy base layer 221 has conductivity, so that the tightly combined four-layer structure has excellent conductivity, can completely serve as an inner conductive layer of a dimming structure, has excellent ductility and low crack characteristics (which will be described in further detail later), and can mutually mask local defects, the multi-layer conductive structure can obtain thicker conductive layers, lower resistance and lower energy consumption.
Since the production efficiency of the silver alloy base layer 221 is ensured and the production cost is saved, the adhesion layer 212 has to be added to cooperate with the ZnO: al layer 213 to increase the growth rate of the silver alloy base layer 221 while reducing the thickness of the ZnO: al layer 213. However, as the thickness of the silver alloy base layer 221 increases, it gradually decreases until it disappears, being promoted by the adhesion layer 212. In the absence of the complete adhesion layer 212, the growth rate of the silver alloy base layer 221 is greatly reduced (see the average growth rate parameter of comparative examples D7 to D9), and therefore the thickness of the silver alloy base layer 221 is preferably not more than 15nm, otherwise the production efficiency is greatly reduced. However, the surface quality of the silver alloy base layer 221 with a lower thickness has a certain defect, so that a thin metal titanium protective layer 222 is added to improve the surface quality of the silver alloy base layer 221. In addition, the silver alloy base layer 221 was originally useful for compensating for the occurrence of surface cracks (see the performance parameters of 5 mm diameter bending surface cracks and 5% surface cracks of film stretching of comparative examples D7 to D11), however, since the thickness of the silver alloy base layer 221 was limited, its covering effect on cracks was artificially reduced. Therefore, in order to compensate for the defect of crack coverage by the thickness of the silver alloy base layer 221 (the thickness of the metallic titanium protective layer 222 is too small, the growth speed is slow, and it is difficult to provide crack coverage by the metallic titanium protective layer), an indium tin oxide protective layer 223 with a large thickness is added on the outer side of the metallic titanium protective layer 222. The growth speed of the non-crystalline indium oxide is high, and the surface quality of the bottom layer is repaired through the metallic titanium protective layer, so that the indium tin oxide protective layer can be grown rapidly and simultaneously maintain good surface quality. Meanwhile, the amorphous indium oxide is relatively crystalline ZnO of the bottom layer, namely an Al layer, a silver alloy layer and a metallic titanium layer, and cracks are not easy to generate in a stretching state, so that the cracks of the bottom layer can be covered and prevented by the high-thickness indium tin oxide protective layer 223, and meanwhile, the transparent indium tin oxide protective layer 223 has little influence on the light transmission performance of the film layer.
3. Light-adjusting inner suspension film
In the embodiment of the light modulating inner suspension shown in fig. 3a, only one silver alloy layer 22 is formed on the outer side of the inner suspension substrate 21. The inner suspension film base material 21 and one silver alloy layer 22 outside the inner suspension film base material form a heat insulation structure, and meanwhile, a total of four conductive layers of the ZnO/Al layer 213 of the inner suspension film base material 21 are used as inner conductive layers of the dimming structure, and the inner conductive layers, the dimming layer 25 outside the silver alloy layer 22, the outer conductive layer 243 and the outer base material layer 24 form the dimming structure for realizing the dimming function. The outer substrate layer 24 may be a PET film, the outer conductive layer 243 may be formed on the outer surface of the outer substrate layer 24 by using an indium tin oxide target material (containing 90wt% of indium oxide and 10wt% of tin oxide) through a dual rotating cathode and an intermediate frequency reaction magnetron sputtering method, and the liquid crystal/polymer mixed material may be formed by curing an ultraviolet light curing glue mixture containing polymer dispersed liquid crystal.
In the embodiment of the light-adjusting inner suspension film shown in fig. 3b, two superimposed silver alloy layers 22 are formed on the outer side of the inner suspension film substrate 21, wherein the two silver alloy layers 22 have the same structure and each comprise a silver alloy base layer 221, a metallic titanium protective layer 222 and an indium tin oxide protective layer 223. The inner suspension film substrate 21 and the two silver alloy layers 22 on the outer side of the inner suspension film substrate 21 form a double-layer heat insulation structure, meanwhile, a total of seven conductive layers of the Al layer 213 of the inner suspension film substrate 21 are used as inner conductive layers of the dimming structure, and the inner conductive layers, the outermost dimming layer 25, the outer conductive layer 243 and the outer substrate layer 24 form a dimming structure for realizing a dimming function.
In the two embodiments, the dimming layer 25, the outer conductive layer 243 and the outer substrate layer 24 may be formed by conventional materials in the prior art, and the inner suspension film substrate 21 and the silver alloy layer 22 provide a solid supporting interface, so that the conventional outer dimming structure may also rely on the supporting interface to obtain better working stability and durability. In addition, the film thicknesses of the light adjusting layer 25, the outer conductive layer 243 and the outer substrate layer 24 can be set according to the existing mature scheme, and can be flexibly adjusted according to the strength condition of the specific supporting interface.
In the embodiment of the light-adjusting inner suspension shown in fig. 3c, the light-adjusting inner suspension includes two suspension substrates 21 and one silver alloy layer 22 formed on the two suspension substrates 21, the two suspension substrates 21 and the silver alloy layer 22 thereon are mirror-image configured, and a light-adjusting layer 25 is interposed between the two opposite silver alloy layers 22. In this embodiment, the suspended film substrate 21 and the silver alloy layer 22 thereon form a set of heat insulation structure, the silver alloy layers 22 outside the two sets of heat insulation structures are oppositely arranged, two opposite silver alloy layers 22 (also respectively combined with the two opposite silver alloy layers 22 and the ZnO: al layer 213) are utilized to serve as two conductive layers of the dimming structure, and the positions of the two silver alloy layers 22 are oppositely clamped at two sides of the dimming layer 25. In this embodiment, two sets of heat insulation structures are configured in a mirror image manner, the outer conductive layer 243 and the outer substrate layer 24 on the outer sides in the two embodiments are removed, and the silver alloy layer 22 of the heat insulation structure with excellent low-stretch-crack characteristics is used as the electrode layers on both sides of the dimming structure, so that the requirements on the brittle fracture performance of the outer conductive layer 243 can be reduced, and meanwhile, the complexity of the processing technology is reduced. In addition, the two silver alloy layers 22 in the present embodiment have the same structure, and each of them includes a silver alloy base layer 221, a metallic titanium protective layer 222, and an indium tin oxide protective layer 223. The dimming structure shown in fig. 3c does not need to use an outer conductive layer and an outer substrate layer of conventional materials, but makes full use of two conductive silver alloy layers of the heat insulation structure to form two transparent electrodes, so that more excellent low-stretch-crack characteristics can be obtained.
4. Light-adjusting inner suspension film door and window
In order to more clearly understand the stretching and tensioning state of the inner hanging film, the structure of the inner hanging film door and window of the present application will be further described with reference to fig. 4 to 8.
Because the tensioning operation of the inner suspension film in the prior art is very complicated, four sides of the inner suspension film need to be respectively clamped on a plurality of elastic elements during installation, and in order to prevent the inner suspension film from wrinkling, the tensioning force needs to be locally and repeatedly adjusted. In addition, the inner suspension film repeatedly expands with heat and contracts with cold in the long-term use process, the tension difference can lead the film to be extruded to local positions to form folds, the permeability of the glass door and window can be influenced, and the outdoor scenery can be observed to generate visual deformation due to refraction.
In order to solve the above problems, as seen in the exploded perspective view of the tension frame 3 shown in fig. 4, the four sides of the dimming inner suspension film 2 of the present application are wound on four reels 20, respectively, and both ends of the four reels 20 are mounted inside the tension frame 3 through elastic tensioners 5, respectively.
In one embodiment illustrated, in order to facilitate tensioning the dimming inner suspension film 2 while exposing both ends of the reel 20, the dimming inner suspension film 2 is rectangular with four corners cut out, so that the four sides of the dimming inner suspension film 2 are narrower in width near the edge positions, and thus when wound on the reel 20, the winding thickness of the dimming inner suspension film 2 on the reel 20 is thicker near the middle of the reel 20, and the winding thickness of the inner suspension film near both ends of the reel 20 is thinner. That is, the light adjusting inner suspension film 2 wound around the reel 20 is formed in a spindle shape having a thick middle and thin ends. Therefore, as the light modulation inner suspension film 2 is tightly wound on the reel 20, the tension force of the middle position of the light modulation inner suspension film 2 is gradually larger than the tension force of the corner position, and the film expansion and relaxation generated by the thermal expansion of the middle suspended inner suspension film can be counteracted. Meanwhile, the winding edge of the dimming inner suspension film 2 tends to extend towards two ends with thinner thickness, so that the phenomenon that the film is locally extruded to generate wrinkles is naturally eliminated.
As can be seen from the stretching process of the inner suspension film of the present application, the middle suspended portion of the inner suspension film is stretched to the greatest extent during use, and the reel portion does not need to be stretched excessively, but if the growth thickness of the silver alloy layer is too thin or the compactness of the ZnO: al layer is insufficient during winding around the reel 20, cracks easily occur in the portion of the inner suspension film adjacent to the reel, and these cracks easily propagate toward the middle in a long-time stretched state, so that it is necessary to provide structural improvement of the inner suspension film of the present application.
Further, in order to facilitate the winding of the dimming inner suspension film 2 by the winding shaft 20 to generate an even tension, it is preferable that the winding shaft 20 is circular in section for winding the middle portion of the dimming inner suspension film 2. In addition, in order to facilitate that the tension force attached to the elastic tensioner 5 after tensioning does not relax, the cross section of the spool 20 for attaching both ends of the elastic tensioner 5 is square, so that the spool 20 is not easily rotated.
According to the application, the four sides of the inner suspension film are respectively wound on the four reels, so that larger tensioning force can be obtained in the middle of the inner suspension film, the heated relaxation of the inner suspension film is counteracted, and the folds are naturally eliminated through winding, so that when the inner suspension film is arranged on the tensioning frame, only the two ends of the reels are required to be tensioned, the tensioning force does not need to be adjusted one by one for every point on the periphery of the inner suspension film, and the complexity of tensioning operation is greatly reduced.
Further, as shown in fig. 5, the tensioning frame 3 includes a first frame 31 and a second frame 32 which are clamped on both sides of the dimming inner suspension film 2, and the elastic tensioning device 5 is disposed inside a cavity formed by buckling the first frame 31 and the second frame 32. In the particular embodiment illustrated, two elastic tensioners 5 are provided for each reel 20, so that a total of eight elastic tensioners 5 are provided inside the first 31 and second 32 frames, only six elastic tensioners 5 being shown in fig. 4 due to the shielding from view. Every two elastic tensioning devices 5 are combined into a group, and are connected into a whole through a corner connecting sheet 6, and are arranged at the corner positions of the tensioning frame 3.
The first frame 31 may be formed by splicing four profiles, for example as shown in fig. 5, in which a partial structure of two profiles at one corner position is shown. The four profiles can be connected into a whole by welding or bonding, or two adjacent profiles can be connected into a whole by screws through the corner connecting sheet 6. At this time, the corner connecting piece 6 may connect not only a set of two elastic tensioners 5 at the corner position (by welding or screwing, etc.), but also two profiles. In the embodiment shown in fig. 5, the elastic tensioning device 5 is arranged to be mounted on the first frame 31. Of course, it will be appreciated by those skilled in the art that in an embodiment not shown, the elastic tensioning device 5 may also be provided mounted on the second frame 32.
The second frame 32 may be integrally punched from a metal plate, cast from metal, or injection molded from plastic, as shown in fig. 6. Alternatively, the second frame 32 may be formed by splicing four profiles, as in the first frame 31. Alternatively, the first housing 31 may be integrally formed of metal or plastic, as in the second housing 32. Preferably, the frame body for installing the elastic tensioning device 5 is formed by splicing metal profiles, so that the frame body can have larger supporting strength to adapt to tensioning operation; correspondingly, the other frame body can be made of metal or plastic integrally formed parts.
The second frame 32 may be provided inside the first frame 31 as shown in fig. 1, or in an embodiment not shown, the first frame 31 may be provided inside the second frame 32. In addition, in order to avoid the first frame 31 and the second frame 32 from being separated accidentally, the side edges of the first frame 31 and the second frame 32 may be reinforced by screws (screw holes are shown in the figure, and screws are not shown).
As shown in fig. 5 and 6, the first frame 31 and the second frame 32 have a first annular inner flange 311 and a second annular inner flange 321, respectively, which are opposite to each other, and the first annular inner flange 311 and the second annular inner flange 321 abut against both side surfaces of the dimming inner suspension film 2, respectively (fig. 1). The first annular inner flange 311 and the second annular inner flange 321 which are abutted against the two side surfaces of the dimming inner suspension film 2 clamp the dimming inner suspension film 2, so that the cavities on the two sides of the dimming inner suspension film 2 cannot be communicated with the interiors of the first frame 31 and the second frame 32, the cavities on the two sides of the dimming inner suspension film 2 are well isolated, and heat exchange of air flows in the cavities on the two sides is avoided.
Further, in order to further enhance the insulation effect, in an embodiment not shown, it is preferable that the top of the first annular inner flange 311 and the second annular inner flange 321, which are abutted against the dimming inner suspension film 2, are mounted with elastic sealing strips.
The specific construction of the elastic tensioner for an inner swing door and window according to the present application will be described in further detail with reference to fig. 7 to 8. As shown in the figure, the elastic tensioning device 5 comprises a fixed base 51, a telescopic clamping seat 52 is arranged below the fixed base 51, and a spring 53 is arranged between the telescopic clamping seat 52 and the fixed base 51. For balanced stress, two springs 53 are arranged side by side between the telescopic clamping seat 52 and the fixed base 51.
Further, the fixing base 51 may be formed by integrally cutting and bending a metal plate, and includes a fixing top plate 511 abutting against a first end of the spring 53, wherein two sides of the fixing top plate 511 are respectively bent to form a fixing guide plate 512, and a bottom of the fixing guide plate 512 is bent to form a mounting plate 513; the fixed top plate 511 is formed with a positioning screw hole 5111 for positioning the spring 53; the mounting plate 513 is formed with a mounting screw hole 5131, and the entire elastic tensioner 5 can be mounted inside the tension frame 3 by a screw penetrating into the mounting screw hole 5131.
Corresponding to the number of springs 53, two positioning screw holes 5111 are provided on the fixed top plate 511, and one positioning screw 5112 is provided in each positioning screw hole 5111. After passing through the set screw 5111, the set screw 5112 is threaded at its distal end into the end of the spring 53 so that the spring 53 does not disengage from the set screw 5112 during compression and fails.
The telescopic clamping seat 52 can also be formed by integrally cutting and bending a metal plate, and comprises a movable top plate 521 propping against the second end of the spring 53, wherein a telescopic guide plate 522 is formed by bending the bottom of the movable top plate 521 towards one side of the fixed top plate 511, a hanging plate 523 is formed by bending the tail end of the telescopic guide plate 522 penetrating through a guide opening 5113 at the bottom of the fixed top plate 511, and a return hook plate 524 is formed at the tail end of the hanging plate 523; the end of the square section of the spool 20 is non-rotatably caught in a concave space formed by the telescopic guide plate 522, the hanging plate 523 and the return hook plate 524.
The fixed guide plate 512 is formed with a guide groove 5121, and both ends of the movable top plate 521 are respectively formed with a protrusion 5211, and the protrusions 5211 are inserted into the guide groove 5121 and can move forward and backward along the guide groove 5121.
When the elastic tensioning device 5 is assembled, the telescopic clamping seat 52 is deflected by a certain angle, the protruding part 5211 is inserted into the guide groove 5121, then the telescopic clamping seat 52 is aligned, the spring 53 is placed between the telescopic clamping seat 52 and the fixed base 51, and finally the positioning screw 5112 is screwed in to fix the position of the spring 53. After the fixing base 51 is mounted on the tension frame 3, the telescopic clamping seat 52 is limited below the fixing base 51 through the guide groove 5121 and the guide opening 5113, and the telescopic clamping seat 52 can only move in parallel along the guide groove 5121, so that a stable elastic force can be provided for the tail end of the scroll 20.
The tail end of the scroll 20 is of a square cross-section structure, and can be clamped in the concave space of the telescopic guide plate 522, the hanging plate 523 and the clip hook plate 524 in a non-rotating manner, so that the buckle structure is simple and effective, and the operation is quite convenient. The elastic tensioning device 5 is simple in structure and high in operation reliability, and the elastic continuous effectiveness of the whole structure is extremely high by converting the compression force of the spring 53 into the tensile elastic force, so that the elastic tensioning device can be used in a maintenance-free operation for life.
It should be understood by those skilled in the art that while the present application has been described in terms of several embodiments, not every embodiment contains only one independent technical solution. The description is given for clearness of understanding only, and those skilled in the art will understand the description as a whole and will recognize that the technical solutions described in the various embodiments may be combined with one another to understand the scope of the present application.
The foregoing is illustrative of the present application and is not to be construed as limiting the scope of the application. Any equivalent alterations, modifications and combinations thereof will be effected by those skilled in the art without departing from the spirit and principles of this application, and it is intended to be within the scope of the application.
Claims (6)
1. The dimming inner suspension film is used for being installed in a tensioning frame (3) clamped between two layers of glass (1) in a tensioning mode, and is characterized in that the dimming inner suspension film (2) comprises an inner suspension film base material (21) and at least one silver alloy layer (22) formed on the inner suspension film base material (21), and a dimming layer (25), an outer conducting layer (243) and an outer base material layer (24) are formed on the outer surface of the silver alloy layer (22) in a compounding mode in sequence; the inner suspension film base material (21) comprises a polyester film (211), wherein at least one ZnO: al layer (213) is formed on the outermost side of the polyester film (211) facing the silver alloy layer (22), and an adhesion layer (212) is formed between the ZnO: al layer (213) and the outermost side of the polyester film (211); the adhesion layer (212) is prepared from the following raw materials in parts by weight: 6-8 parts by weight of polydimethylsiloxane; 1-5 parts of polyurethane; 15-30 parts by weight of vinyl trimethoxy silane; 80-120 parts by weight of isopropanol; 10-20 parts of polyethylene glycol; 1-5 parts of zinc oxide; 0.1-0.5 parts by weight of alumina; 0.1 to 0.5 part by weight of magnesium sulfate.
2. The dimming inner suspension film according to claim 1, wherein two superposed silver alloy layers (22) are formed on the outer side of the inner suspension film substrate (21), and the two silver alloy layers (22) have the same structure and comprise a silver alloy base layer (221), a metallic titanium protective layer (222) and an indium tin oxide protective layer (223).
3. The light-adjusting inner suspension film is used for being arranged in a tensioning frame (3) clamped between two layers of glass (1) in a tensioning mode, and is characterized in that the light-adjusting inner suspension film (2) comprises two layers of suspension film base materials (21) and one silver alloy layer (22) respectively formed on the two layers of suspension film base materials (21), the two layers of suspension film base materials (21) and the silver alloy layer (22) on the two layers of suspension film base materials are in mirror image configuration, and a light-adjusting layer (25) is clamped between the two opposite silver alloy layers (22); the inner suspension film base material (21) comprises a polyester film (211), wherein at least one ZnO: al layer (213) is formed on the outermost side of the polyester film (211) facing the silver alloy layer (22), and an adhesion layer (212) is formed between the ZnO: al layer (213) and the outermost side of the polyester film (211); the adhesion layer (212) is prepared from the following raw materials in parts by weight: 6-8 parts by weight of polydimethylsiloxane; 1-5 parts of polyurethane; 15-30 parts by weight of vinyl trimethoxy silane; 80-120 parts by weight of isopropanol; 10-20 parts of polyethylene glycol; 1-5 parts of zinc oxide; 0.1-0.5 parts by weight of alumina; 0.1 to 0.5 part by weight of magnesium sulfate.
4. A dimming inner suspension film according to any of claims 1-3, wherein the silver alloy layer (22) comprises a silver alloy base layer (221), a metallic titanium protective layer (222) is formed on the outer side of the silver alloy base layer (221), and an indium tin oxide protective layer (223) is formed on the outer side of the metallic titanium protective layer (222).
5. The dimming inner suspension film according to claim 4, wherein the silver alloy base layer (221) has a thickness of 10-15nm; the thickness of the metal titanium protective layer (222) is 3-6nm; the thickness of the indium tin oxide protective layer (223) is 55-85nm.
6. A dimming inner suspension film according to any of claims 1-3, characterized in that the thickness of the adhesion layer (212) is 10-20nm; the thickness of the ZnO/Al layer (213) is 3-6nm.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101533162A (en) * | 2008-03-14 | 2009-09-16 | 汉朗科技(北京)有限责任公司 | Electrical control light modulating medium |
| CN101909873A (en) * | 2007-12-28 | 2010-12-08 | 3M创新有限公司 | Infrared reflecting films for solar control and other uses |
| CN102099731A (en) * | 2008-05-30 | 2011-06-15 | 3M创新有限公司 | Suspended optical film |
| CN105229252A (en) * | 2013-05-28 | 2016-01-06 | 索斯华尔技术公司 | There is the insulating window unit of cracking resistance Low emissivity suspended membrane |
| CN108825074A (en) * | 2018-07-30 | 2018-11-16 | 怡通科技有限公司 | A kind of hollow glass system of interior outstanding electrochromic intelligent film |
| WO2022097739A1 (en) * | 2020-11-05 | 2022-05-12 | 積水化学工業株式会社 | Interlayer film structure for laminated panel, and laminated panel structure |
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2022
- 2022-08-01 CN CN202210916315.5A patent/CN115157814B/en active Active
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|---|---|---|---|---|
| CN101909873A (en) * | 2007-12-28 | 2010-12-08 | 3M创新有限公司 | Infrared reflecting films for solar control and other uses |
| CN101533162A (en) * | 2008-03-14 | 2009-09-16 | 汉朗科技(北京)有限责任公司 | Electrical control light modulating medium |
| CN102099731A (en) * | 2008-05-30 | 2011-06-15 | 3M创新有限公司 | Suspended optical film |
| CN105229252A (en) * | 2013-05-28 | 2016-01-06 | 索斯华尔技术公司 | There is the insulating window unit of cracking resistance Low emissivity suspended membrane |
| CN108825074A (en) * | 2018-07-30 | 2018-11-16 | 怡通科技有限公司 | A kind of hollow glass system of interior outstanding electrochromic intelligent film |
| WO2022097739A1 (en) * | 2020-11-05 | 2022-05-12 | 積水化学工業株式会社 | Interlayer film structure for laminated panel, and laminated panel structure |
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| CN115157814A (en) | 2022-10-11 |
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