Vehicle window glass and method for manufacturing vehicle window glass

Patent metadata

Field	Value
Publication number	US-10696582-B2
Application number	US-201616062506-A
Country	US
Kind code	B2
Filing date	Nov 14, 2016
Priority date	Jan 22, 2016
Publication date	Jun 30, 2020
Grant date	Jun 30, 2020

Abstract

A vehicle window glass 1 of the present invention is provided with: a glass plate 11; a color ceramic layer 12, which is formed on the surface of the glass plate 11, and has a thickness more than 10 μm but equal to or less than 25 μm; and an electrically conductive layer 13, which is formed on the surface of the color ceramic layer 12, and has silver as a main component. The electrically conductive layer 13 and a terminal electrically connected to the electrically conductive layer 13 are connected to each other using a lead-free solder 14. In the vehicle window glass 1 of the present invention, since the thickness of the color ceramic layer 12 is more than 10 μm, the glass plate 1 is not susceptible to cracks.

First claim

The invention claimed is:

1. A vehicle window glass, comprising:
a glass plate;
a color ceramic layer formed on the surface of the glass plate and having a layer thickness of more than 10 μm and less than or equal to 25 μm;
an electrically conductive layer formed on the surface of the color ceramic layer, containing silver as a main component, and having a layer thickness of 7 μm to 8 μm;
a lead-free solder; and
a terminal through which electricity is conducted to the electrically conductive layer;
wherein the glass plate, the color ceramic layer, the electrically conductive layer, the lead-free solder and the terminal are laminated in this order.

2. The vehicle window glass according to claim 1 , wherein the thickness of the color ceramic layer is 18 μm or more.

3. The vehicle window glass according to claim 1 , wherein the electrically conductive layer is formed by performing coating with one sheet of screen.

4. The vehicle window glass according to claim 1 , wherein the lead-free solder is a Sn—Ag-based lead-free solder or a Sn—Ag—Cu-based lead-free solder.

Assignees

• Central Glass Co Ltd

Inventors

• Furuhashi Kazunori
• Niitsu Takao

Classifications

• H05B3/84 Primary

  Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields · CPC title

• B60S1/02

  Cleaning windscreens, windows or optical devices {(wind deflectors specially adapted for preventing soiling of windows or windscreens B60J1/2002)} · CPC title

• H05B2203/016

  Heaters using particular connecting means · CPC title

• B60S1/58

  for rear windows · CPC title

• B60J1/00

  Windows; Windscreens; Accessories therefor (B60J10/00 takes precedence; air curtains instead of windows B60J9/04 {; sealing strips for windshields B60J10/70; sealing sash guides for sliding window panes B60J10/74; glass partitions inside vehicles to protect occupants against personal attack B60R21/12}) · CPC title