CN213122540U - Electrochromic glass - Google Patents
Electrochromic glass Download PDFInfo
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- CN213122540U CN213122540U CN202021157317.3U CN202021157317U CN213122540U CN 213122540 U CN213122540 U CN 213122540U CN 202021157317 U CN202021157317 U CN 202021157317U CN 213122540 U CN213122540 U CN 213122540U
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Abstract
The utility model discloses electrochromic glass, which relates to the electrochromic field and comprises a substrate, wherein the substrate comprises a first substrate and a second substrate, an electrochromic device is arranged between the first substrate and the second substrate, and the electrochromic device is provided with a first conducting layer, an electrochromic layer, an ion conducting layer, an ion storage layer and a second conducting layer in sequence from the first substrate; an electrode disposed to supply power to the electrochromic device; the inner surface of the substrate comprises a notch, the notch is opposite to the electrode, the depth of the notch is smaller than the thickness of the substrate, and the periphery of the notch and the periphery of the substrate are sealed through edge sealing materials. The utility model discloses technical effect lies in: the product is highly integrated, a series of control or communication units can be additionally integrated, and the service life of the glass-packaged product is prolonged.
Description
Technical Field
The utility model relates to an electrochromic field especially relates to an electrochromic glass.
Background
Electrochromism refers to a phenomenon in which optical properties (reflectivity, transmittance, absorption, etc.) undergo a stable, reversible color change under the action of an applied electric field. Electrochromic technology has been developed for more than forty years, and Electrochromic devices (ECDs) have wide application prospects in the fields of intelligent windows, displays, spacecraft temperature control modulation, automobile no-glare rearview mirrors, weapon equipment stealth and the like due to the characteristics of continuous adjustability of transmitted light intensity, low energy loss, open-circuit memory function and the like. The ECD-based glass serving as a brand-new intelligent window can adjust the intensity of incident sunlight according to a comfortable requirement, effectively reduces energy consumption and shows a remarkable energy-saving effect. With the continuous improvement of the requirements of human beings on consumer products, the ECD shows huge market prospects and application values in the fields of automobiles, home appliances, aerospace, rail transit, green buildings and the like, and electrochromic products have attracted more and more extensive attention and attention at home and abroad, and are a new generation of high-efficiency building energy-saving products following heat-absorbing glass, heat-reflecting coated glass and low-radiation glass.
At present, the existing electrochromic product mainly adopts hollow packaging as a main part, and in the packaging process, as a bus bar, a lead and the like need to penetrate through a hollow packaging structure to be connected with an electrochromic device, the sealing performance of the hollow electrochromic product can be seriously influenced. The sealing performance durability failure risks exist in the aspects of silver paste printing or bus bars, and the cyclic discoloration life of the electrochromic product is greatly influenced and even possibly damaged once the hollow packaging failure occurs.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defect of prior art, the utility model aims to solve the technical problem that promote electrochromic product encapsulation reliability to hide the electrode, promote pleasing to the eye degree.
In order to achieve the above object, the present invention provides an electrochromic glass, including a substrate, the substrate includes a first substrate and a second substrate, an electrochromic device is included between the first substrate and the second substrate, the electrochromic device is provided with a first conducting layer, an electrochromic layer, an ion conducting layer, an ion storage layer, and a second conducting layer in sequence from the first substrate; an electrode disposed to supply power to the electrochromic device; the inner surface of the substrate comprises a notch, the notch is opposite to the electrode, the depth of the notch is smaller than the thickness of the substrate, and the periphery of the notch and the periphery of the substrate are sealed through edge sealing materials.
Further, the notch groove comprises a drying body.
Further, the drying body is one or more of a molecular sieve, silica gel and activated alumina.
Further, the electrodes include a first electrode in electrical contact with the first conductive layer and a second electrode in electrical connection with the second conductive layer, the first electrode is located within the groove of the first substrate inner surface, and a width of the first electrode corresponds to a width of the groove of the first substrate inner surface.
Further, the electrochromic device further includes: an ion blocking layer; the ion blocking layer comprises silicon oxide or silicon aluminum oxide, the ion blocking layer is arranged between the second conducting layer and the second substrate, and the second electrode is positioned between the ion blocking layer and the second conducting layer.
Further, the electrochromic device further includes: an isolation layer; the isolation layer is arranged between the ion barrier layer and the second substrate, and the isolation layer is selected from at least one of the following materials: titanium nitride, aluminum nitride, silicon nitride, boron nitride.
Further, a cathodic coloring material is included in the electrochromic layer and an anodic coloring material is included in the ion storage layer.
Further, the cathodic coloring material is selected from at least one of the following materials: tungsten oxynitride, molybdenum oxynitride, niobium oxynitride, titanium oxynitride, tantalum oxynitride; the anodic coloring material is selected from at least one of the following materials: nickel oxynitride, iridium oxynitride, manganese oxynitride, cobalt oxynitride, tungsten nickel oxynitride, tungsten iridium oxynitride, tungsten manganese oxynitride, tungsten cobalt oxynitride.
Further, still include: and the control module is connected with the electrode and is positioned in the notch groove.
Further, the engraved groove is filled with a conductive material, and the conductive material is electrically connected with the electrode.
Further, the conductive material is at least one selected from the following materials: silver paste, carbon powder and copper paste.
Further, still include: a cavity between the first substrate and the second substrate, wherein the cavity is vacuum or filled with an inert gas.
The utility model discloses technical effect lies in: the product is highly integrated, a series of control or communication units can be additionally integrated, and the service life of the glass-packaged product is prolonged.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another embodiment of the present invention;
fig. 3 is a top view of the structure according to an embodiment of the present invention.
Description of reference numerals: 100-a first substrate; 200-a second substrate; 300-grooving; 400-a wire; 501-a first electrode; 502-a second electrode; 600-drying the body; 105-a first conductive layer; 110-an electrochromic stack; 115-a second conductive layer; a 120-ion barrier layer; 125-an isolation layer; 130-a cavity; 135-edge sealing material.
Detailed Description
The technical contents of the preferred embodiments of the present invention will be more clearly understood and appreciated by referring to the drawings attached to the specification. The present invention may be embodied in many different forms of embodiments, and the scope of the invention is not limited to the embodiments described herein.
In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.
As shown in fig. 1, the present invention discloses an electrochromic glass, which comprises a substrate, wherein the substrate comprises a first substrate 100 and a second substrate 200, an electrochromic device is included between the first substrate 100 and the second substrate 200, the electrochromic device is sequentially provided with a first conducting layer 105, an electrochromic lamination 110 and a second conducting layer 115 from the first substrate 100, and the electrochromic lamination 110 comprises an electrochromic layer, an ion conducting layer and an ion storage layer. The electrochromic device further comprises electrodes, wherein the electrodes are arranged to supply power to the electrochromic device, and the electrochromic device is subjected to a fading effect through the change of current. The inner surface of the substrate includes a notch 300, the notch 300 being positioned opposite the electrode, the notch 300 having a depth less than the thickness of the substrate, the outer perimeter of the notch 300 and the perimeter of the substrate being sealed by an edge sealing material 135.
The substrate may be a planar glass. In one embodiment, the first transparent substrate 100 and the second transparent substrate 200 may also be curved glass.
The first conductive layer 105 and the second conductive layer 125 are conventional conductive layers, and the material includes one or more of Indium Tin Oxide (ITO), aluminum-doped zinc oxide (AZO), boron-doped zinc oxide (BZO), and fluorine-doped tin oxide (FTO).
The bottom layer of the electrochromic stack 110 is an electrochromic layer, is disposed on the first conductive layer 105, and can be deposited on the first conductive layer 105 by vacuum coating, evaporation coating, or the like, with a thickness of 200 to 600 nm. The material is selected from tungsten oxide (WO)3) Molybdenum oxide (MoO)3) Niobium oxide (Nb)2O5) Titanium oxide (TiO)2) One or more of (a).
And then an ion conducting layer is arranged on the electrochromic layer and used for communicating ions between the electrochromic layer and the ion storage layer, the material is preferably metal lithium, and the film thickness is 10-300 nm. In order to improve the stability of lithium ions and increase the ionic porosity to improve the transmission rate, materials such as tantalum, niobium, cobalt, aluminum, silicon, phosphorus, boron and the like can be doped in the lithium thin film layer.
And finally, an ion storage layer is arranged on the ion conducting layer and used for storing lithium ions conducted from the electrochromic layer due to voltage, and the film thickness is 150-650 nm. The material of the ion storage layer is selected from nickel oxide (NiO)x) Iridium oxide (IrO)2) One or more of (a).
The electrode can be selected from conductive copper foil, copper-nickel solder strip, nickel-chromium solder strip and the like, a conductive narrow strip with high adhesive force can be formed on the surface of the conductive film through processes of vacuum coating, screen printing, dispensing, coating and the like, and then the electrode is connected with the first conductive layer 105 and the second conductive layer 125 through modes of conductive adhesive bonding, laser welding, elastic pressing and the like.
The notch 300 is opposite to the electrode, and when the electrochromic glass is actually used, a conductive wire is needed to connect the electrodes on the first conductive layer 105 and the second conductive layer 115 to form a loop. At this point, additional conductive wires can be collated and stored in close proximity into score groove 300, hiding the conductive wires while achieving planarization of the electrochromic glass structure.
In addition, in some cases, the electrodes may be directly covered by the notch 300 without using a conducting wire, the electrodes may directly extend out of the first substrate 100 and the second substrate 200, and then the electrodes may be connected by using a conducting wire to form a current-carrying loop.
The edge sealing material 135 is an all-inorganic or inorganic-metal slurry mixed type material, and may be selected from one or more of the following oxides: lithium, sodium, potassium, zinc, boron, aluminum, silicon, phosphorus, tin, bismuth. Lithium oxide (Li) is preferable2O), sodium oxide (Na)2O), potassium oxide (K)2O), zinc oxide (ZnO), boron oxide (B)2O3) Aluminum oxide (Al)2O3) Silicon dioxide (SiO)2) Phosphorus pentoxide (P)2O5) Tin oxide (SnO), bismuth oxide (Bi)2O3)。
Further, the notch 300 includes a drying body 600 therein for adsorbing moisture generated in the environment and between the substrates, so as to improve the lifetime and reliability of the electrochromic glass, and preferably, the drying body 600 may be a molecular sieve, silica gel, activated alumina, or the like. Optionally, there may be a plurality of notches 300 on each substrate, each notch 300 is filled with a dry body, and besides the notches 300 filled with the conductive wires, the additional notches 300 may further absorb surrounding moisture, further ensuring the lifetime of the electrochromic glass product.
Further, the electrodes include a first electrode 501 and a second electrode 502, the first electrode 501 is in electrical contact with the first conductive layer 105, the second electrode 502 is in electrical contact with the second conductive layer 115, the first electrode 501 is located in the groove of the inner surface of the first substrate 100, and the width of the first electrode 501 corresponds to the width of the groove of the inner surface of the first substrate 100. Therefore, by adjusting the width of the notch 600 on the first substrate 100, the width of the first electrode 501 can be adjusted accordingly, so as to increase the contact area between the first electrode 501 and the first conductive layer 105, increase the current transmission rate, and reduce the resistance.
Further, the electrochromic device further includes: an ion blocking layer 120; separation deviceSub-barrier layer 120 comprises silicon oxide or silicon aluminum oxide. Ion barrier layer 120 is disposed between second conductive layer 115 and second substrate 200, over second conductive layer 115. The ion barrier layer 120 uses a silicon (Si) or silicon aluminum (SiAl) target material having a thickness of 20 to 80nm and a composition of silicon oxide (SiO)x) Silicon aluminum oxide (SiAlO)x). The compactness of the aluminum is good, so that the migration of sodium and magnesium in the glass can be effectively blocked, and the adhesive force of the electrochromic film on the glass is improved, so that the electrochromic film cannot be peeled off.
Further, the electrochromic device further includes: an isolation layer 125; the isolation layer 125 is disposed between the ion blocking layer 120 and the second substrate 200. The isolation layer 125 has a film thickness of 100 to 1000nm, and may be made of one or more of titanium nitride, aluminum nitride, silicon nitride, and boron nitride. These materials have high transparency and high resistance, and can prevent current from dissipating after the device is powered on, and can protect functional layers deposited thereunder, such as electrochromic layers, ion conducting layers and the like, and reduce physical and chemical losses thereof.
As shown in fig. 2, after the ion barrier layer 120 and the isolation layer 125 are introduced, the second electrode 502 remains electrically connected to the second conductive layer 115, and the ion barrier layer 120 and the isolation layer 125 cover the second electrode 502. The second electrode 502 is now contacted by the conductive line 400 through the engraved 300 of the second substrate 200. The conductive line 400 is deposited into the engraved groove 300 of the second substrate 200. At this time, the structural top view of the electrochromic glass is shown in fig. 3, that is, the two sides of the substrate are the notches 300, and the first electrode 501 or the second electrode 502 is led out from the notches directly or through a wire according to different materials, and can start to work normally after being connected with a power supply. When the electrochromic glass is installed, the notch 300 can be blocked by the glass installation frame, and the notch 300 cannot be observed by a user during observation.
Further, a cavity 130 is also included, the cavity 130 being located between the first substrate 100 and the second substrate 200, i.e., any portion other than the electrochromic device, or a portion of the electrochromic device not in contact with the sealing material 135 or the second substrate 200. The cavity 130 is either evacuated or filled with an inert gas. The inert gas can prevent the film layer of the electrochromic device from being oxidized, and the service life of the electrochromic device is influenced, namely the hollow electrochromic glass is obtained. And the electrochromic glass is vacuumized, so that the sound insulation performance of the electrochromic glass can be further enhanced besides the protection of the electrochromic device film layer.
Electrochromic glazings can be reversibly cycled between a bleached state and a colored state when in use. In the bleached state, lithium ions are colored by applying a voltage at first conductive layer 105 and second conductive layer 115, passing through the ion conductive layer and into the electrochromic layer containing the electrochromic material. When the voltage potential applied at first conductive layer 105 and second conductive layer 115 is reversed, lithium ions leave the electrochromic layer, pass through the ion conducting layer, and return into the ion storage layer. Thereby, the device is switched to a bleached state. The electrochromic glazing can be switched not only back and forth between a bleached state and a colored state, but also to one or more intermediate tint states between the bleached state and the colored state, depending on the voltage control.
Further, the electrochromic layer in the electrochromic stack 110 includes a cathode coloring material therein, and the ion storage layer includes an anode coloring material therein. For example, the electrochromic layer may employ a cathodically coloring material, such as tungsten oxide; the ion storage layer may employ an anodic coloring material such as nickel oxide. That is, after lithium ions are separated from the ion storage layer, the ion storage layer also enters a colored state. Thereby, the electrochromic layer and the ion storage layer are combined and together reduce the amount of light transmitted through the stack.
Further, a polycrystalline structure of metal oxynitride deposition coating film can be used in the electrochromic layer, the film thickness is usually 150 to 650nm, and the material used specifically includes tungsten oxynitride (WO)xNy) Molybdenum oxynitride (MoO)xNy) Niobium oxynitride (NbO)xNy) Titanium oxynitride (TiO)xNy) Tantalum oxynitride (TaO)xNy) Depending on the nitrogen content, the parameters x and y vary accordingly. The molar amount of nitrogen atoms in the electrochromic layer 110 is generally 0.05 to 20% of the total atomic molar amount, or 0.5%5 percent or less, and can be 0.5 to 10 percent. Generally, the content of nitrogen exceeds 20%, the color of the deposited coating film can be deepened, which is caused by the color of the metal oxynitride, and the deepening of the color of the coating film can influence the light transmittance of the electrochromic glass in a fading state, so that the color change range of a finished device is reduced.
After metal oxide used by a conventional electrochromic layer is replaced by metal oxynitride, according to the difference of nitrogen content, nitrogen ions can replace oxygen ions in the original metal oxide, for example, tungsten is taken as an example, original W-O ionic bonds are partially replaced by W-N ionic bonds, so that the asymmetry of crystal lattices is caused, the acting force balance among original ions is destroyed, adjacent atoms deviate from the balance position, and the crystal distortion is caused. After the crystal is distorted, the interaction around the ion transport channel is reduced, thereby increasing the ion transport speed of the electrochromic layer. The nitrogen element is taken as a relatively stable element, and the stability of the metal compound is not affected by the introduction of the nitrogen element, so that the good stability is still maintained.
Similar to the electrochromic layer, the ion storage layer has a film thickness of 150 to 650nm and is selected from nickel oxynitride (NiO)xNy) Iridium oxynitride (IrO)xNy) Manganese oxynitride (MnO)xNy) Cobalt oxynitride (CoO)xNy) Tungsten nickel oxynitride (WNi)zOxNy) Iridium tungsten oxynitride (WIr)zOxNy) Tungsten manganese oxynitride (WMn)zOxNy) Tungsten-cobalt oxynitride (WCo)zOxNy) The mole number of nitrogen atoms in the film layer accounts for about 0.05 to 15 percent of the whole mole number of atoms. Nitrogen is further introduced into the conventional ion storage layer 120 to convert the conventional nickel oxide, iridium oxide material into nickel oxynitride, iridium oxynitride or cobalt oxynitride material, thereby improving the stability of the device during the color degradation due to the higher binding energy of the nitride relative to the oxide.
Further, still include: and the control module is connected with the electrodes and is positioned in the notch 300. Because the control module is small and can be stored in the notch 300, the control module can further integrate a series of control or communication units such as wireless, photosensitive, voice-operated, laser and the like, thereby integrating the electrochromic glass and the control unit thereof, being simple and convenient to operate, saving space and realizing planarization, lightness and thinness of the electrochromic glass product.
When the control module comprises a wireless unit, the electrochromic glass can be connected with a mobile phone, a computer, a panel, a center console and the like through Bluetooth or wifi and the control module in a wireless mode, and then the fading change of the electrochromic glass is controlled.
By implanting the photosensitive element control module, the voltage passing through the electrochromic device in the electrochromic glass can be automatically adjusted along with the light intensity so as to control the transmittance of the electrochromic glass.
Furthermore, a sound control unit can be additionally added to control the transmittance of electrochromism through voice recognition AI.
Further, a laser module can be added, and laser conduction is adopted to remotely control the transmittance of the electrochromic glass at an ultra-long distance.
By adding the different control modules, the electrochromic glass can be widely applied to automobile skylights, side windows of motor cars, side windows of airplanes, side windows of ship cruise ships, intelligent curtain walls, intelligent household appliances and the like.
Further, the etching grooves 300 are filled with a conductive material, and the conductive material is electrically connected to the electrodes.
The conductive material can be mixed with the drying body 600, or the conductive material can be spread after the drying body 600 is spread like the notch 300, at the moment, the electrode only needs to be contacted with the conductive material, or the electrode can be led out from the conductive material at the edge of the notch 300 after being led to the conductive material in the notch 300 through the lead 400, the conductive wire does not need to be arranged and wound and is placed in the notch 300, and the space in the notch 300 is more regular.
Further, the conductive material may be selected from at least one of the following materials: silver paste, carbon powder and copper paste for conducting current.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the teachings of this invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (12)
1. The electrochromic glass is characterized by comprising a substrate, an electrochromic device and electrodes, wherein the substrate comprises a first substrate and a second substrate, the electrochromic device is arranged between the first substrate and the second substrate, and a first conducting layer, an electrochromic layer, an ion conducting layer, an ion storage layer and a second conducting layer are sequentially arranged on the electrochromic device from the first substrate; the electrodes are arranged to supply power to the electrochromic device; the inner surface of the substrate comprises a notch, the notch is opposite to the electrode, the depth of the notch is smaller than the thickness of the substrate, and the periphery of the notch and the periphery of the substrate are sealed through edge sealing materials.
2. The electrochromic glazing of claim 1 wherein said score groove includes a desiccant.
3. The electrochromic glazing of claim 2 wherein the dried bodies are one or more of molecular sieves, silica gel, activated alumina.
4. The electrochromic glazing of claim 1 wherein the electrodes comprise a first electrode in electrical contact with the first conductive layer and a second electrode in electrical connection with the second conductive layer, the first electrode being positioned within the score groove of the first substrate inner surface, the first electrode having a width corresponding to a width of the score groove of the first substrate inner surface.
5. The electrochromic glazing of claim 4 wherein said electrochromic device further comprises: an ion blocking layer; the ion blocking layer comprises silicon oxide or silicon aluminum oxide, the ion blocking layer is arranged between the second conducting layer and the second substrate, and the second electrode is positioned between the ion blocking layer and the second conducting layer.
6. The electrochromic glazing of claim 5 wherein said electrochromic device further comprises: an isolation layer; the isolation layer is arranged between the ion barrier layer and the second substrate, and the isolation layer is selected from at least one of the following materials: titanium nitride, aluminum nitride, silicon nitride, boron nitride.
7. The electrochromic glazing of claim 1 wherein the electrochromic layer comprises a cathodically coloring material and the ion storage layer comprises an anodically coloring material.
8. The electrochromic glazing of claim 7 wherein the cathodically coloring material is selected from at least one of the following: tungsten oxynitride, molybdenum oxynitride, niobium oxynitride, titanium oxynitride, tantalum oxynitride; the anodic coloring material is selected from at least one of the following materials: nickel oxynitride, iridium oxynitride, manganese oxynitride, cobalt oxynitride, tungsten nickel oxynitride, tungsten iridium oxynitride, tungsten manganese oxynitride, tungsten cobalt oxynitride.
9. The electrochromic glazing of claim 1 further comprising: and the control module is connected with the electrode and is positioned in the notch groove.
10. The electrochromic glazing of claim 1 wherein said score grooves are filled with a conductive material, said conductive material being electrically connected to said electrodes.
11. The electrochromic glazing of claim 10 wherein the electrically conductive material is at least one selected from the group consisting of: silver paste, carbon powder and copper paste.
12. The electrochromic glazing of claim 1 further comprising: a cavity between the first substrate and the second substrate, wherein the cavity is vacuum or filled with an inert gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021157317.3U CN213122540U (en) | 2020-06-19 | 2020-06-19 | Electrochromic glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021157317.3U CN213122540U (en) | 2020-06-19 | 2020-06-19 | Electrochromic glass |
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| Publication Number | Publication Date |
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| CN213122540U true CN213122540U (en) | 2021-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202021157317.3U Active CN213122540U (en) | 2020-06-19 | 2020-06-19 | Electrochromic glass |
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| CN (1) | CN213122540U (en) |
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Address after: 226601 No.28 Nanhai Avenue middle, Hai'an City, Nantong City, Jiangsu Province Patentee after: Jiangsu prosperous Yingcai Technology Co.,Ltd. Patentee after: NANTONG FANHUA NEW MATERIAL TECHNOLOGY Co.,Ltd. Address before: No.188, Ninghai South Road, Nantong City, Jiangsu Province, 226699 Patentee before: JIANGSU FANHUA GLASS Co.,Ltd. Patentee before: NANTONG FANHUA NEW MATERIAL TECHNOLOGY Co.,Ltd. |
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