| 摘要 |
A composite pane having an electrically heatable coating is described. The composite pane comprises: at least two individual panes; an intermediate layer, which connects the individual panes to one another; at least one transparent, electrically conductive coating on at least one side of at least one of the at least two individual panes, the at least one side faces the intermediate layer; and at least two bus bars, which are connected to the at least one transparent, electrically conductive coating, wherein a first bus bar is electrically connected to a first feed line provided for connection to one pole of a voltage source and a second bus bar is electrically connected to a second feed line provided for connection to the second pole of the voltage source. |
| 主权项 |
1. A composite pane with an electrically heatable coating, comprising:
at least two individual panes, an intermediate layer, which bonds the at least two individual panes to one another, at least one transparent, electrically conductive coating on at least one side of at least one of the at least two individual panes facing the intermediate layer, and at least two bus bars, the at least two bus bars being connected to the at least one transparent, electrically conductive coating, wherein a first bus bar is electrically connected to a first feed line provided for connection to one pole of a voltage source and a second bus bar is electrically connected to a second feed line provided for connection to a second pole of the voltage source, wherein the at least one transparent, electrically conductive coating
contains silver,has a sheet resistance of 1 ohm/square to 10 ohm/square, andhas n linear incisions, where n is an integer>2, wherein each of said n linear incisions has a width in a range of from 10 μm to 500 μm, the n linear incisions dividing the at least one transparent, electrically conductive coating into a plurality of coating regions, with each of said n linear incisions extending from one edge to an opposite edge of the electrically conductive coating, wherein the coating regions of the plurality of coating regions adjacent to each other are completely electrically isolated from one another electrically by a respective incision and are electrically connected to one another in series by a bus bar without a feed line, and wherein the n linear incisions are implemented such that a resistance of the at least one transparent, electrically conductive coating results in a heating output from 300 W/m2 to 1000 W/m2 with an operating voltage in a range of 100 V to 400 V- and wherein a coating section of the at least one transparent, electrically conductive coating situated in a region of a shortest geometric distance between the first bus bar and the second bus bar is electrically interrupted by a plurality of said n linear incisions, wherein a number of said n linear incisions is selected depending on a magnitude of the operating voltage, such that a voltage drop over an individual incision of said n linear incisions, by which two adjacent coating regions of the plurality of coating regions are electrically separated from one another, is less than a breakdown voltage of an incision of said n linear incisions. |
