Abstract: A joint connector includes housings which can be stacked together, with a predetermined gap formed therebetween, each of the housings having a plurality of juxtaposed terminals received therein, and a circuit forming element which is inserted into the gap between the stacked housings, and connects arbitrarily-selected ones of the terminals in the adjacent housings, adjoining to each other in a stacking direction, and also connects arbitrarily-selected ones of the terminals in the same housing. By inserting the circuit forming element, the connection of the terminals can be effected easily, and besides a desired circuit can be easily obtained by the circuit structure of the circuit forming element.

Abstract: A bus bar is constituted by integrally forming pairs of terminal contact pieces, each pair of which is in contact with an opposed terminal, a pair of connecting base portions, which integrally connect the base-side portions of the terminal contact pieces arranged on the same side thereof, and connecting pieces for connecting the pair of connecting base portions. This bus bar is integrally coupled to a bus bar fixing member constituted by an insulating member. An arbitrary circuit including so-called a skip connection can be constructed by suitably cutting the connecting base portions and the connecting piece. Thus, the entire circuit forming element is constituted as one component.

Abstract: A bus bar is constituted by integrally forming pairs of terminal contact pieces, each pair of which is in contact with an opposed terminal, a pair of connecting base portions, which integrally connect the base-side portions of said terminal contact pieces arranged on the same side thereof, and connecting pieces for connecting the pair of connecting base portions. This bus bar is integrally coupled to a bus bar fixing member constituted by an insulating member. An arbitrary circuit including so-called a skip connection can be constructed by suitably cutting the connecting base portions and the connecting piece. Thus, the entire circuit forming element is constituted as one component.

Abstract: A joint connector includes housings which can be stacked together, with a predetermined gap formed therebetween, each of the housings having a plurality of juxtaposed terminals received therein, and a circuit forming element which is inserted into the gap between the stacked housings, and connects arbitrarily-selected ones of the terminals in the adjacent housings, adjoining to each other in a stacking direction, and also connects arbitrarily-selected ones of the terminals in the same housing. By inserting the circuit forming element, the connection of the terminals can be effected easily, and besides a desired circuit can be easily obtained by the circuit structure of the circuit forming element.