Motorized window shade with ultraquiet motor drive and ESD protection

A motorized roller shade assembly comprising:

• an elongated reelable shade capable of accumulating an electrostatic charge;
• an elongated, electrically conductive roller secured to one end of said reelable shade and rotatable about a longitudinal axis for reeling and unreeling said shade;
• an electrically non-conductive end cap coupled to a first end of said roller and in coaxial alignment with said longitudinal axis, said end cap defining an opening adapted to receive a drive shaft, said opening in coaxial alignment with said longitudinal axis;
• an electric motor assembly having an output drive shaft received within said opening for rotating said roller to reel and to unreel said shade, an electronic motor controller for controlling said motor assembly, and a ground terminal adapted to be coupled to an external electrical ground, said output drive shaft in electrical communication with said ground terminal;
• and
• an electrical conductor having a first portion thereof connected to said roller and a second portion thereof received within said opening in electrical communication with said output drive shaft in all angles of rotation thereof, said first and second portions connected by a middle portion, said first and second portions extending in substantially parallel relation to each other and substantially perpendicularly from opposite ends of said middle portion, whereby electrical charge on said roller is coupled to said shaft.