Transparent pane with heatable coating
First Claim
1. A transparent pane, comprising:
- at least one electrically heatable coating connected to at least two collecting electrodes configured to establish an electrical connection to two poles of a voltage source, so that an applied supply voltage of the voltage source causes a heating current to flow via a heating field formed between the two collecting electrodes, wherein the heating field contains at least one coating-free zone bordered by a zone edge of the coating-free zone, the zone edge being formed, at least in sections, by the heatable coating,wherein at least one of the two collecting electrodes is subdivided into at least two subregions separated from one another,wherein at least one electrical supply line, of at least two electrical supply lines, is guided from each of the at least two subregions to at least one additional electrode,wherein the at least one electrical supply line runs, at least in sections,i) in the at least one coating-free zone, and/orii) in a coating-free edge strip of the transparent pane, and/oriii) in at least one subregion of the heatable coating outside the heating field, and/oriv) at and/or in the zone edge of the at least one coating-free zone formed by the coating, andwhereina) the at least one additional electrode is electrically connected to ends of the at least two electrical supply lines and to a heating field section of the heating field between the two collecting electrodes, and/orb) the at least one additional electrode is subdivided into at least two subregions separated from one another, wherein each of the at least two subregions is electrically connected to, in each case, one end of a respective at least one electrical supply line of the at least two electrical supply lines as well as to the heating field section of the heating field between the two collecting electrodes.
1 Assignment
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Accused Products
Abstract
A transparent pane having an electrically heatable coating and at least one coating-free zone that can be used, for example, as a communication window, is disclosed. The electrically heatable coating is connected to two collecting electrodes, such that a supply voltage applied to the electrodes generates a heating current that flows via a heating field formed between the collecting electrodes, the heating field containing the coating-free zone whose zone-edge is formed, at least in sections, by the heatable coating. Other implementation details include subdivision of one of the two collecting electrodes into separated subregions, each connected, via an electrical supply line, to an additional electrode. In one case, the electrical supply line runs, at least in sections, in the coating-free zone, in a coating-free edge strip, in a subregion of the coating outside the heating field, and/or in the zone-edge. Methods for producing the transparent pane are also disclosed.
23 Citations
15 Claims
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1. A transparent pane, comprising:
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at least one electrically heatable coating connected to at least two collecting electrodes configured to establish an electrical connection to two poles of a voltage source, so that an applied supply voltage of the voltage source causes a heating current to flow via a heating field formed between the two collecting electrodes, wherein the heating field contains at least one coating-free zone bordered by a zone edge of the coating-free zone, the zone edge being formed, at least in sections, by the heatable coating, wherein at least one of the two collecting electrodes is subdivided into at least two subregions separated from one another, wherein at least one electrical supply line, of at least two electrical supply lines, is guided from each of the at least two subregions to at least one additional electrode, wherein the at least one electrical supply line runs, at least in sections, i) in the at least one coating-free zone, and/or ii) in a coating-free edge strip of the transparent pane, and/or iii) in at least one subregion of the heatable coating outside the heating field, and/or iv) at and/or in the zone edge of the at least one coating-free zone formed by the coating, and wherein a) the at least one additional electrode is electrically connected to ends of the at least two electrical supply lines and to a heating field section of the heating field between the two collecting electrodes, and/or b) the at least one additional electrode is subdivided into at least two subregions separated from one another, wherein each of the at least two subregions is electrically connected to, in each case, one end of a respective at least one electrical supply line of the at least two electrical supply lines as well as to the heating field section of the heating field between the two collecting electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for producing a transparent pane, the method comprising the following process steps:
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A) producing an electrically heatable coating, B) producing at least one coating-free zone in the electrically heatable coating and in a heating field of the electrically heatable coating, C) forming at least two collecting electrodes provided for connection to two terminals of a voltage source, the at least two collecting electrodes being electrically connected to the electrically heatable coating so that by applying a supply voltage through the voltage source, a heating current flows via a heating field situated between the at least two collecting electrodes, wherein at least one of the two collecting electrodes is subdivided into at least two subregions separated from one another, D) producing at least one additional electrode provided for electrically connecting to at least one of the two collecting electrodes and/or at least two subregions, separated from one another, of the at least one additional electrode, and E) producing at least two electrical supply lines, which connect the at least one additional electrode and/or, in each case, one of its at least two subregions electrically to, in each case, at least one of the at least two subregions, separated from one another, of at least one of the collecting electrodes, wherein at least one of the at least two electrical supply lines is produced running, at least in sections, i) in the at least one coating-free zone, and/or ii) in the coating-free edge strip, and/or iii) in at least one subregion of the coating outside the heating field, and/or iv) at and/or in the zone edge, formed by the coating, of the at least one coating-free zone. - View Dependent Claims (14, 15)
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Specification