US Patent 11545798 Power supply rail system

A power supply rail includes a groove extending in a first direction in a base portion and having an opening on a one-end side in a second direction, a conductive portion provided at a bottom surface of the groove, and a first recess formed on a first side wall of the groove. A power supply terminal is attachable/detachable into/from the groove, and includes terminal portions formed on an other-end side in the second direction of a body portion, a lead-wire portion from the terminal portions and elastic portions provided on a first side surface of the body portion. The elastic portions are latched in contact with an inside of the first recess of the power supply rail, and the terminal portions contact with the conductive portion.