Abstract: Examples of rotary electrical connectors include a first pair and a second pair of opposing sheaves coupled together by intersecting first shaft connecting the first pair of opposing sheaves and a second shaft connecting the second pair of opposing sheaves, and at least partially electrically conductive belt disposed about respective perimeters of the first pair and second pair of opposing sheaves and adapted to remain in contact with at least a portion of the respective perimeters of the sheaves during motion of said sheaves. In example devices, one of the plurality of sheaves may remain stationary during operation of the device while the remaining sheaves rotate and/or orbit around a center axis of the stationary sheave, the device being configured to couple current between a stationary power source and a rotating member through the electrically conductive belt.

Abstract: An electrical junction box includes a printed board, a broad bus bar for a power source circuit, a plurality of output side connecting terminal members, and a casing for containing the printed board, broad bus bar, and terminal members. A plurality of fuses are mounted on fuse-containing sections in parallel with one another. The broad bus bar for a power source circuit has a vertical portion and a horizontal portion extending from an upper end of the vertical portion to form an inverted L-shaped configuration. The output side connecting terminal members are disposed in a space covered with the broad bus bar. The broad bus bar is provided with a window so that a soldered condition of the output side connecting terminal members can be seen through the window.