摘要:
The present invention provides for the enhancement of the amount of heat generated in the critical viewing area of a plastic window assembly by lowering the overall resistance of a conductive heater grid and allowing a greater amount of current to pass through the grid lines, thereby, increasing resistance heating of the window. This is achieved by subjecting the heater grid to a high power treatment after forming of the window assembly that reduces the resistance of the conductive heater grid.
摘要:
A plastic window and defroster assembly that enhances the amount of heat generated in the critical viewing area of a transparent plastic glazing panel. The assembly includes a transparent plastic panel and a conductive heater grid formed by printing a conductive ink with a sheet resistivity of less than about milliohms/square @ 25.4 μm (1 mil).
摘要:
An apparatus for printing a conductive ink onto a plastic panel including an articulatable arm having an end that opposes a surface of the panel. A nozzle is mounted via a nozzle height actuator to the end of the arm, and the nozzle is coupled to a source of conductive ink. A flow regulator, coupled to the ink source, regulates the flow rate of ink out of the nozzle and is controlled by the controller. A height sensor is configured to output a height signal relative to the surface and the controller, which is coupled to the arm, the flow regulator, the nozzle height actuator and the sensor, is configured to control the arm, flow regulator, nozzle height actuator, and speed of nozzle movement such that a conductive trace of predetermined height and width is applied to the substrate.
摘要:
An apparatus for printing a conductive ink onto a plastic panel including an articulatable arm having an end that opposes a surface of the panel. A nozzle is mounted via a nozzle height actuator to the end of the arm, and the nozzle is coupled to a source of conductive ink. A flow regulator, coupled to the ink source, regulates the flow rate of ink out of the nozzle and is controlled by the controller. A height sensor is configured to output a height signal relative to the surface and the controller, which is coupled to the arm, the flow regulator, the nozzle height actuator and the sensor, is configured to control the arm, flow regulator, nozzle height actuator, and speed of nozzle movement such that a conductive trace of predetermined height and width is applied to the substrate.
摘要:
A method for printing a conductive trace on a plastic panel comprising: locating a nozzle proximate to a surface of a panel; moving the nozzle relative to the surface of the panel; sensing the surface of the panel relative to the height of the nozzle off of the panel; determining the speed at which the nozzle is being moved across the surface of the panel; adjusting at least one of the height of the nozzle relative to the surface of the panel and a flow rate of conductive ink out of the nozzle; and dispensing a conductive ink from the nozzle onto the surface of the panel to form the conductive trace. The conductive trace is formed with a predetermined width.
摘要:
A window defroster system that includes a heater grid and a controller. The controller includes a pulse width modulator configured to provide a driving signal to the heater grid. The driving signal has an initial heating portion and a pulsed portion. The initial heating portion provides an initial voltage that is greater than an optimal operating voltage of the heater grid, the pulsed portion provides a pulsed signal with a pulsed high voltage that is greater than the optimal operating voltage.
摘要:
A window defroster assembly having a transparent panel and a defroster. The defroster includes a conductive layer applied over the panel and an electrically conductive heater grid formed integrally with the transparent panel. The heater grid includes a series of grid lines and at least a portion of the conductive layer is located between adjacent ones of the grid lines.
摘要:
The present invention provides a window assembly having a transparent panel and a conductive heater grid formed integrally with the transparent panel. The conductive heater grid has a first group of grid lines and a second group of grid lines, with opposing ends of each group being connected to first and second busbars. Grid lines of the second group are spaced between adjacent grid lines of the first group, with the width of the grid lines themselves in the second group being less than the width of the grid lines in the first group.
摘要:
The present invention provides a protected layered system for a component assembly. The protected layered system includes a plastic panel and at least two protective layers formed integrally with the plastic panel. One protective layer is configured as a barrier layer that reduces the loss of an additive suspended, and not covalently bonded, in the structure of any underlying protective layer or the plastic panel. The weathering performance exhibited by the component assembly is similar for various colored or tinted plastic panels or protective layers.
摘要:
A system for effectively defrosting a plastic window includes a transparent plastic panel, a heater grid having a plurality of grid lines that are integrally formed with the plastic panel, and equalizing means for equalizing the electrical current traveling through each of the grid lines.