Process for the production of a laminated glass glazing having metal wires in an intermediate thermoplastic layer
First Claim
1. Process for the production of a laminated glass glazing having a plurality of layers, comprising:
- assembling one or more wires located within an intermediate thermoplastic layer and according to which, prior to assembly of the layers, an electrically conductive connection is established between the wires and one or more metal elements;
joining the layers to one another by a supply of heat and pressure,heating the wires at the connection points, prior to the electrical connection to the metal elements, by an energy application locally limited to each of said points, such that the existence of surface layers adhering to the surfaces of the wires and bringing about an increased contact resistance are eliminated.
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Accused Products
Abstract
A process for the production of a laminated glass glazing having one or more wires within an intermediate thermoplastic layer and electrically connected to busbars, wherein the wires are heated by an adequate energy application locally limited to the connection points prior to the electrical connection to the busbars, to the extent that the surface layers adhering to the surface of the wires are eliminated. The application of a locally limited adequate energy supply takes place by use of laser rays, as a result of the fact that the focus of a beam of laser rays oriented perpendicular to the busbars is displaced in the longitudinal direction above and on the busbars. The wires are then welded to the busbars. The layers forming the laminated glass glazings are presently assembled in a conventional manner and joined to one another under heat and pressure.
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Citations
10 Claims
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1. Process for the production of a laminated glass glazing having a plurality of layers, comprising:
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assembling one or more wires located within an intermediate thermoplastic layer and according to which, prior to assembly of the layers, an electrically conductive connection is established between the wires and one or more metal elements; joining the layers to one another by a supply of heat and pressure, heating the wires at the connection points, prior to the electrical connection to the metal elements, by an energy application locally limited to each of said points, such that the existence of surface layers adhering to the surfaces of the wires and bringing about an increased contact resistance are eliminated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A heated laminated glazing incorporating an intercalated thermoplastic material layer having at least one heating network of fine, electrical resistance, metal wires extending between two collecting strips, the resistance wires being provided with a light-absorbing surface layer in a field of vision of the glazing, wherein said wires do not have said surface layer in areas of connection with the collecting strips.
Specification