Onboard controller for multistate windows

摘要

Onboard EC window controllers are described. The controllers are configured in close proximity to the EC window, for example, within the IGU. The controller may be part of a window assembly, which includes an IGU having one or more EC panes, and thus does not have to be matched with the EC window, and installed, in the field. The window controllers described herein have a number of advantages because they are matched to the IGU containing one or more EC devices and their proximity to the EC panes of the window overcomes a number of problems associated with conventional controller configurations.

主权项

1. An insulated glass unit (IGU) comprising:
at least two panes, at least one of which comprises an electrochromic (EC) device; a spacer separating the panes from one another, wherein the spacer is provided proximate perimeter regions of the panes; a primary seal positioned between the spacer and each pane, wherein the primary seal affixes the spacer to the panes; a secondary seal affixed around the spacer, wherein the secondary seal is a sealing adhesive; a logic device comprising a chip, a card, or a board disposed at least partially between the panes of the IGU, and disposed at least partially in the secondary seal; and an interface for (i) the logic device and (ii) a communication network and/or a power source wherein the spacer, primary seal, and secondary seal hermetically seal an interior region of the IGU, the interior region being defined between the panes of the IGU, and defined at its perimeter by the spacer.