Film insert molded plastic windows and its manufacture method
A plastic window, plastic technology, applied in the direction of windows, coupling devices, transportation and packaging, etc., can solve the problems of the heating grid not working, the terminals falling off, the spring contacts becoming loose, etc.
Active Publication Date: 2012-09-05
EXATEC LLC
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Problems solved by technology
[0005] Each of the above structures has its well-known problems and limitations, the limitations of spring contacts are exemplified by the fact that during the life of the vehicle, due to fatigue and / or vibration, the spring contacts may become loose, causing the grill to heat up not working or in poor working condition
Regarding the limitations of the pad bond structure, applying too much or too little solder weakens the bond between the terminal and the pad, which may cause the terminal itself to easily come off the pad
Due to the low glass transition temperature of the plastic, traditional high temperature solders cannot be used to form a strong connection to the busbar
Unfortunately, commercially available low temperature solders and even conductive adhesives have unacceptable bond strength and / or reliability
Method used
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[0040] The following description of the preferred embodiment is exemplary only in nature and is in no way intended to limit the scope of the invention or its application or uses.
[0041] now refer to figure 1 , which generally exemplifies a plastic window system 10 comprising, as its main component, a conductive grid 12 incorporated into a panel 14 . Although the conductive grid 12 may be one of many elements that provide functionality to the window system, the conductive grid 12 will be further described herein and will be referred to as the heat generating grid 12 .
[0042] The heat generating grid 12 preferably includes a set of grid lines 16 extending between generally opposing bus bars 18, 19, although other configurations of heat generating grids may be used. Furthermore, at least some of the grid lines 16 may be replaced by a conductive coating extending between the remaining grid lines 16 .
[0043]The bus bars 18, 19 are designated as positive and negative bus bar...
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A plastic window includes a transparent plastic substrate having first and second sides. Bonded to the first side of the substrate is a plastic film, the film being thinner than the substrate. An electrically conductive grid, including at least one conductive connector location, is encapsulated between the substrate and the film. Extending into the substrate, at least one electrical connector is positioned in electrical contact with the conductive mounting so that an electrical voltage supply can be connected to the conductive mounting and an electrical current can be caused to flow through the conductive grid.
Description
technical field [0001] The present invention generally relates to the connection of electrical terminals to a plastic panel containing a conductive grid, traces or circuits (hereinafter simply "grid") thereon. More specifically, the present invention relates to the attachment of electrical terminals to an electrical grid applied to a plastic substrate of a plastic window system via film insert molding in order to provide the window system with functions such as defrosting or defrosting. Fog ability like function. Background technique [0002] Conductive grids have long been used to provide functions like defrosting or defogging of windows to window systems, especially the backlights of automobiles. For example, when electrically heating a rear window, a conductive heating grill is usually placed next to the inside or outside of the window. The heat generating grid also typically includes a pair of opposing bus bars between which a set of grid wires extends. During current...
Claims
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IPC IPC(8): B29C45/14H05B3/86B60J1/18
CPCB29C2045/14901B29K2995/0005H05B2203/017H05B3/86B29C45/14811B29C45/14B60J1/18H01R12/77
Inventor 李成涛J·维拉斯奎兹K·D·维斯T·阿德金斯E·F·J·M·范德默伦Y·施瓦茨曼
Owner EXATEC LLC