Connectors for smart windows

A spacer for an insulated glass unit, the spacer configured to supply electricity to an optical device on a lite of the insulated glass unit, via one or more electrical power distribution components of the optical device, wherein at least one of said one or more electrical power distribution components is either within the primary seal or within the sealed interior volume of the insulated glass unit, and wherein the electricity supplied to said at least one of said one or more electrical power distribution components does not traverse the primary seal of the insulated glass unit.

An electrical connection system for an insulated glass unit comprising an optical device requiring electrical powering, the electrical connection system comprising:

• a. one or more ribbon conductors configured to be embedded in the secondary seal of the insulated glass unit and supply electricity to the optical device;
• and
• b. a pin connector configured to establish electrical connection to said one or more ribbon conductors by penetrating the secondary seal material and piercing the one or more ribbon conductors thereby establishing electrical communication with the one or more ribbon conductors.

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An electrical connection system for an insulated glass unit comprising a switchable optical device, the electrical connection system comprising:

• a track configured to reside within a secondary sealing area of the insulated glass unit;
• and
• two or more rails of the track, each of said rails configured for making electrical communication between an external power source and one or more electrodes of the switchable optical device.

A method of electrically connecting a switchable optical device of an insulated glass unit to a power source, the method comprising:

• providing a track within the insulated glass unit, wherein the track comprises two or more rails within recesses, wherein the two or more rails are in electrical communication with busbars in electrical communication with one or more electrodes of the switchable optical device;
• and
• twisting an electrical connector to contact two tabs of the electrical connector to the two or more rails within the recesses of the track to electrically connect the power source to the switchable optical device.

An asymmetrical electrical connector for electrically connecting a power source to bus bars of a switchable optical device of an insulated glass unit, the asymmetrical electrical connector comprising:

• a body having two asymmetrical conducting tabs for twistably engaging corresponding asymmetrical recesses in a track of the insulated glass unit, wherein the two asymmetrical conducting tabs contact two or more rails within the recesses when engaged, wherein the two or more rails are in electrical communication with the bus bars of the switchable optical device;
• and
• wires coupled to the two asymmetrical conducting tabs, the wires configured to electrically communicate with the power source.

An insulated glass unit spacer configured both as (i) a structural element defining a portion of a hermetic seal around an interior space of an insulated glass unit and (ii) an electrical connector for an optically switchable device of the insulated glass unit.