Onboard controller for multistate windows

Patent metadata

Field	Value
Publication number	US-2016109778-A1
Application number	US-201514887178-A
Country	US
Kind code	A1
Filing date	Oct 19, 2015
Priority date	Dec 22, 2009
Publication date	Apr 21, 2016
Grant date	—

Abstract

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.

First claim

1 . (canceled)

2 . An insulated glass unit assembly comprising:
a. a first transparent substrate comprising an electrochromic device thereon; b. a second transparent substrate; c. a sealing separator between the first and second transparent substrates; and d. an onboard controller disposed on one of the transparent substrates and configured to provide optical switching control of the electrochromic device wherein the onboard controller is electrically wired to the electrochromic device and the onboard controller comprises a memory or RFID tag, programmed with data on the characteristics of the electrochromic device or the insulated glass unit assembly.

3 . The insulated glass unit assembly of claim 2 , wherein the onboard controller is mounted on the first transparent substrate.

4 . The insulated glass unit assembly of claim 2 , wherein the onboard controller comprises dimensions of 6 inches by 1 inch by 1 inch, or less, on each dimension.

5 . The insulated glass unit assembly of claim 2 , wherein the onboard controller comprises dimensions of 5 inches by ¾ inches by ⅝ inches, or less, on each dimension.

6 . The insulated glass unit assembly of claim 2 , wherein the onboard controller is not in the viewable area of the insulated glass unit assembly.

7 . The insulated glass unit assembly of claim 2 , wherein the onboard controller comprises a user interface configured to allow an end user to control the electrochromic device functions.

8 . The insulated glass unit assembly of claim 2 , provided in a network of insulated glass unit assemblies configured in a daisy chain format.

9 . The insulated glass unit assembly of claim 2 , provided in a network of insulated glass unit assemblies configured in a linear bus topology.

10 . The insulated glass unit assembly of claim 9 , wherein the linear bus topology is a CAN linear bus topology.

11 . The insulated glass unit assembly of claim 2 , wherein the onboard controller comprises a wireless communication interface.

12 . The insulated glass unit assembly of claim 11 , wherein the wireless communication interface is a Bluetooth or Zigbee interface.

13 . The insulated glass unit assembly of claim 2 , wherein the onboard controller comprises one or more sensors.

14 . The insulated glass unit assembly of claim 13 , wherein the one or more sensors comprises an optical sensor.

15 . The insulated glass unit assembly of claim 2 , wherein the onboard controller has a wireless powering capability.

16 . The insulated glass unit assembly of claim 2 , wherein the onboard controller comprises a redundant power driver circuit.

17 . The insulated glass unit assembly of claim 2 , wherein the onboard controller comprises a chip, a card or a board, each including a logic circuit.

18 . The insulated glass unit assembly of claim 17 , wherein the onboard controller comprises a field programmable gate array.

19 . The insulated glass unit assembly of claim 2 , wherein the onboard controller is not in a single enclosure.

20 . A method of installing an electrochromic window and an associated controller into a wall, the method comprising:
a. installing the associated controller into a wall; and b. installing an insulated glass unit comprising an electrochromic device; wherein a framing of the wall serves as the frame for the electrochromic window and wherein the associated controller is within 1 meter or less of the electrochromic window.

21 . The method of claim 20 , wherein a low voltage wiring is used to power the associated controller.

22 . The method of claim 21 , wherein the low voltage wiring supplies the associated controller with 24V.

23 . The method of claim 20 , wherein the associated controller is powered by wiring carrying 48V.

24 . The method of claim 21 , wherein the associated controller supplies the electrochromic window with between 2V and 10V via wiring.

25 . The method of claim 20 , wherein the electrochromic window is provided in a network of electrochromic windows configured in a daisy chain format.

26 . The method of claim 20 , wherein the electrochromic window is provided in a network of electrochromic windows configured in a linear bus topology.

27 . The method of claim 26 , wherein the linear bus topology is a CAN linear bus topology.

28 . The method of claim 20 , wherein the associated controller comprises a wireless communication interface.

29 . The method of claim 28 , wherein the wireless communication interface is a Bluetooth or Zigbee interface.

30 . The method of claim 20 , wherein the associated controller comprises a redundant power driver circuit.

Assignees

• View Inc

Inventors

• Shrivastava Dhairya
• Pradhan Anshu A
• Brown Stephen C
• Groechel David Walter
• Rozbicki Robert T

Classifications

• G02F1/161

  Gaskets; Spacers; Sealing of cells; Filling or closing of cells · CPC title

• E06B2009/2464

  featuring transparency control by applying voltage, e.g. LCD, electrochromic panels · CPC title

• G02F1/163 Primary

  Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor · CPC title

• G05B15/02

  electric · CPC title

• E06B3/6722

  with adjustable passage of light · CPC title