Architectural electrochromic pane
First Claim
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1. An electrically controllable solar building pane, comprising:
- a) an external electrochromic first panel comprising;
i) a first glass sheet;
ii) an electrochromic stack of functional films comprising;
a'"'"') a transparent electrically conducting film;
b'"'"') a cathodic electrochromic material film;
c'"'"') an ion-conducting organic polymer film;
d'"'"') an anodic electrochromic material film; and
e'"'"') a transparent electrically conducting film;
iii) a second glass sheet; and
b) a second panel,wherein said electrochromic stack of functional films are laterally isolated from the outside by a succession of at least three sealing joints located entirely between said first glass sheet and said second panel, at least two of said three sealing joints are chemically different materials, said first and second panels are spaced apart by a layer of intermediate gas, said first glass sheet is a laminated pane comprising at least two glass sheets bonded together by an organic polymer which is filtering to ultra-violet radiation, said first glass sheet or said second glass sheet comprises an electrically conducting screen-printed region, wherein said screen-printed region is protected by a film of electrically non-conducting enamel, and wherein said building pane has a light transmission TL in the range of 7 to 51% and a solar factor in the range of 0.15 to 0.44 when said electrically controllable building pane is in the on-state and off-state, respectively.
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Abstract
This invention relates to an electrically controllable solar building pane composed of two panels spaced apart by a layer of an intermediate gas, the panel facing towards the outside of the building being constituted of a variable transmission system of the electrochromic type comprising two transparent substrates composed, notably, of glass sheets, joined together by an ion-conducting organic polymer and coated on the jointing face with transparent electrically conducting films and films of anodic and cathodic electrochromic materials.
148 Citations
42 Claims
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1. An electrically controllable solar building pane, comprising:
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a) an external electrochromic first panel comprising; i) a first glass sheet; ii) an electrochromic stack of functional films comprising; a'"'"') a transparent electrically conducting film; b'"'"') a cathodic electrochromic material film; c'"'"') an ion-conducting organic polymer film; d'"'"') an anodic electrochromic material film; and e'"'"') a transparent electrically conducting film; iii) a second glass sheet; and b) a second panel, wherein said electrochromic stack of functional films are laterally isolated from the outside by a succession of at least three sealing joints located entirely between said first glass sheet and said second panel, at least two of said three sealing joints are chemically different materials, said first and second panels are spaced apart by a layer of intermediate gas, said first glass sheet is a laminated pane comprising at least two glass sheets bonded together by an organic polymer which is filtering to ultra-violet radiation, said first glass sheet or said second glass sheet comprises an electrically conducting screen-printed region, wherein said screen-printed region is protected by a film of electrically non-conducting enamel, and wherein said building pane has a light transmission TL in the range of 7 to 51% and a solar factor in the range of 0.15 to 0.44 when said electrically controllable building pane is in the on-state and off-state, respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An electrically controllable solar pane, comprising, starting from the exterior of said solar pane:
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a composite structure comprising a first outer glass pane, an organic polymer layer which is filter to ultra-violet light, a second glass pane, an electrochromic variable transmission system comprising a stack of functional films including a transparent electrically conductive film, a film of a cathodic electrochromic material, an ion-conducting organic polymer film, a film of an anodic electrochromic material and a transparent electrically conductive film, and a third glass pane, wherein said solar pane is a laminated pane mounted in a monolithic glazing, and wherein said solar pane has a luminous transmission of about 7% in a colored state and a luminous transmission of about 32% in a decolored state. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification