Wiring connection device

A wiring connection device, wherein a substantially cylindrical-shape motor case is mounted on a cylinder block of an engine;

• a motor stator of an electric motor having an electricity generation function is mounted in the motor case;
• on the crankshaft of the engine is mounted a rotor mounting member;
• the motor rotor of the electric motor is mounted on the rotor mounting member;
• a terminal box, having vertical walls standing integrally and extending outwardly from an outer periphery of said motor case, the vertical walls having an aperture portion directed in an outward radial direction defined by the vertical walls;
• a motor-side through hole, directed in the outward radial direction and which communicates inside and outside of said motor case is formed in a case periphery wall of said motor case and is enclosed by said vertical walls;
• a plurality of motor-side connection terminals mounted on respective ones of a plurality of motor-side coil wires drawn out from said motor stator, the motor-side connection terminals being embedded and retained within said motor-side through hole and directed in the outward radial direction and arrayed in the circumferential direction by molding, the molding sealing said motor-side through hole;
• respective cable-side connection terminals attached to a plurality of power supply cables, and respective connectors attached for fastening to said terminal box;
• a plurality of connector mating holes, and a plurality of connector fastening screw holes paired with the plurality of connector mating holes, are formed in a vertical wall of said terminal box parallel to the arrayed direction of said motor-side connection terminals, directed in directions substantially perpendicular to the axial directions of said respective motor-side connection terminals, and arrayed in the circumferential direction;
• and, said plurality of connector mating holes and connector fastening screw holes are arranged such that angles made by planes containing each of the axes of the connector fastening screw holes and paired connector mating holes formed in said vertical wall, with each of motor-side connection surfaces formed at tips of motor-side connecting portions of said motor-side connection terminals respectively connected to said plurality of cable-side connection terminals, are each different.

A wiring connection device, wherein a substantially cylindrical-shape motor case is mounted on a cylinder block of an engine;

• a motor stator of an electric motor having an electricity generation function is mounted in the motor case;
• on the crankshaft of the engine is mounted a rotor mounting member;
• the motor rotor of the electric motor is mounted on the rotor mounting member;
• a terminal box, having vertical walls stands integrally and extends from an outer periphery of said motor case, the vertical walls having an aperture portion directed in an outward radial direction defined by the vertical walls;
• a motor-side through hole, directed in the outward radial direction and which communicates inside and outside of said motor case is formed in a case periphery wall of said motor case and enclosed by said vertical walls;
• a plurality of motor-side connection terminals mounted on respective ones of a plurality of motor-side coil wires drawn out from said motor stator, the motor-side connection terminals being embedded and retained within said motor-side through hole and directed in the outward radial direction and arrayed in the circumferential direction by molding, the molding sealing said motor-side through hole;
• a plurality of cable-side connection terminals are directed through a plurality of connector mating holes in a vertical wall of said terminal box to within said terminal box, in directions substantially perpendicular to the axial directions of said respective motor-side connection terminals, and arrayed in the circumferential direction;
• respective connectors of said cable-side connection terminals are mated with said plurality of connector mating holes and respective fastening bolts are screwed into a plurality of connector fastening screw holes, fastening each said connector to said vertical wall;
• cable-side connecting surfaces of cable-side connecting portions of said cable-side connection terminals are brought into contact with motor-side connecting surfaces of motor-side connecting portions of said motor-side connection terminals;
• connection bolts passed through connection through holes of said cable-side connecting portions are screwed into connection screw holes of said motor-side connecting portions, so that said cable-side connection terminals are connected to said motor-side connection terminals;
• and, a lid member which blocks the aperture portion about an outer edge of said vertical walls of said terminal box is mounted in watertight fashion.

A combination in a hybrid vehicle of:

• an engine having a cylinder block and a crankshaft;
• a rotor mounting member mounted to the crankshaft;
• an electric motor including a rotor mounted to the rotor mounting member and a stator, the stator including plural motor-side coil wires;
• a motor casing secured to the cylinder block and containing the electric motor and a motor-side through hole;
• a terminal box comprising walls projecting outwardly from a portion of an outer periphery surface of said motor casing, the motor-side through hole opening from an interior of said motor casing into said terminal box, said walls forming an aperture portion extending outwardly from the motor-side through hole, said terminal box having a lower end adjacent the motor-side through hole and an upper end at opposing outward edges of the walls;
• motor-side connection terminals receiving respective ones of the motor-side coil wires;
• molding material receiving said motor-side connection terminals and extending about part of the aperture portion and contacting inner surfaces of the walls of said terminal box, said motor-side connection terminals being embedded in said molding material and said molding material sealing the aperture portion of said terminal box from the motor casing interior, and
• a lid covering the upper end of said terminal box.