Composite pane with electrical contact-making means
First Claim
Patent Images
1. A composite pane with electrical contacting means, comprising:
- a first pane and a second pane, which are bonded face-to-face to each other via a thermoplastic intermediate layer,at least one electrically conductive coating located at least on the interior side surface of the first pane and used for active heating of the composite pane,at least one busbar containing silver particles and glass frits, and exhibiting uniform current flow located on a region of the at least one electrically conductive coating, andat least one electrically conductive contact strip located on at least one region of the at least one busbar, the at least one electrically conductive contact strip containing at least one metal and increasing the current carrying capacity of the at least one busbar,wherein the at least one busbar is layered between the at least one electrically conductive contact strip and the at least one electrically conductive coating, andwherein the at least one electrically conductive contact strip is connected to at least one electrical feed line, and at least one region of the at least one electrically conductive contact strip is in direct contact with the at least one busbar,whereini) the at least one electrically conductive contact strip is fixed to the at least one busbar by an adhesive strip, wherein the adhesive strip protrudes beyond the at least one electrically conductive contact strip and is adhesively bonded to the first pane by means of a protruding portion, orii) a rigid pressure element is arranged between the contact strip and the second pane so that an additional pressure is exerted on the contact strip in the direction of the at least one busbar.
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Accused Products
Abstract
A composite pane with electrical contact-making means is described, having: a first pane and a second pane, which panes are connected to one another over their surface by means of a thermoplastic intermediate layer, at least one electrically conductive coating at least on the inner surface of the first pane, at least one busbar on a region of the electrically conductive coating, and at least one electrically conductive contact strip on at least one region of the busbar, wherein the contact strip is connected to at least one electrical feed line, and at least one region of the contact strip is in direct contact with the busbar.
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Citations
26 Claims
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1. A composite pane with electrical contacting means, comprising:
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a first pane and a second pane, which are bonded face-to-face to each other via a thermoplastic intermediate layer, at least one electrically conductive coating located at least on the interior side surface of the first pane and used for active heating of the composite pane, at least one busbar containing silver particles and glass frits, and exhibiting uniform current flow located on a region of the at least one electrically conductive coating, and at least one electrically conductive contact strip located on at least one region of the at least one busbar, the at least one electrically conductive contact strip containing at least one metal and increasing the current carrying capacity of the at least one busbar, wherein the at least one busbar is layered between the at least one electrically conductive contact strip and the at least one electrically conductive coating, and wherein the at least one electrically conductive contact strip is connected to at least one electrical feed line, and at least one region of the at least one electrically conductive contact strip is in direct contact with the at least one busbar, wherein i) the at least one electrically conductive contact strip is fixed to the at least one busbar by an adhesive strip, wherein the adhesive strip protrudes beyond the at least one electrically conductive contact strip and is adhesively bonded to the first pane by means of a protruding portion, or ii) a rigid pressure element is arranged between the contact strip and the second pane so that an additional pressure is exerted on the contact strip in the direction of the at least one busbar. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for producing a composite pane with electrical contacting means, comprising:
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applying an electrically conductive coating on one surface of a first pane used for active heating of the composite pane, applying at least one busbar containing silver particles and glass frits, and exhibiting uniform current flow on a region of the electrically conductive coating, arranging a thermoplastic intermediate layer on the one surface of the first pane, arranging a second pane on the thermoplastic intermediate layer, arranging at least one electrically conductive contact strip connected to an electrical feed line such that at least one region of the at least one electrically conductive contact strip is in direct contact with the at least one busbar thereby increasing the current carrying capacity of the at least one busbar, arranging the at least one bus bar between the at least one electrically conductive contact strip and the electrically conductive coating, and bonding the first pane and the second pane via the thermoplastic intermediate layer, wherein i) the at least one electrically conductive contact strip is fixed to the at least one busbar by an adhesive strip, wherein the adhesive strip protrudes beyond the at least one electrically conductive contact strip and is adhesively bonded to the first pane by means of a protruding portion, or ii) a rigid pressure element is arranged between the contact strip and the second pane so that an additional pressure is exerted on the contact strip in the direction of the at least one busbar. - View Dependent Claims (23, 24, 25)
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26. A composite pane with electrical contacting means, comprising:
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a first pane and a second pane, which are bonded face-to-face to each other via a thermoplastic intermediate layer, at least one electrically conductive coating located at least on the interior side surface of the first pane and used for active heating of the composite pane, at least one busbar containing silver particles and glass frits, and exhibiting uniform current flow located on a region of the at least one electrically conductive coating, and at least one electrically conductive contact strip located on at least one region of the at least one busbar, the at least one electrically conductive contact strip containing at least one metal and increasing the current carrying capacity of the at least one busbar, wherein the at least one busbar is arranged between the at least one electrically conductive contact strip and the at least one electrically conductive coating, wherein the at least one electrically conductive contact strip is connected to at least one electrical feed line, and at least one region of the at least one electrically conductive contact strip is in direct contact with the at least one busbar, wherein there is no mechanical connection, no connection via a soldering compound, and no connection by an adhesive, between the at least one busbar and the region of the at least one electrically conductive contact strip, and wherein i) the at least one electrically conductive contact strip is fixed to the at least one busbar by an adhesive strip, wherein the adhesive strip protrudes beyond the at least one electrically conductive contact strip and is adhesively bonded to the first pane by means of a protruding portion, or ii) a rigid pressure element is arranged between the contact strip and the second pane so that an additional pressure is exerted on the contact strip in the direction of the at least one busbar.
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Specification