Connection terminal assembly and electromotive drive device using same

An electromotive drive device comprising:

• an electric motor for driving a mechanical-system control element;
• an electronic control unit arranged on an opposite side to an output shaft of the electric motor for controlling the electric motor;
• a power-conversion circuit board provided in the electronic control unit and equipped with a power-conversion circuit for driving at least the electric motor and a control circuit board provided in the electronic control unit and equipped with a control circuit for controlling the power-conversion circuit;
• a press-fit type base-board-side terminal disposed on the power-conversion circuit board and having a pair of elastic terminal pieces in which both ends of an elongated flat-plate shaped metal terminal material are inwardly bent to be opposed to each other, and further bent to provide elasticity in a direction such that the bent portions are opposed to each other;
• and
• a connector-side terminal formed into a flat-plate shape and divided into at least two portions along an insertion direction such that the connector-side terminal is inserted between the pair of elastic terminal pieces of the press-fit type base-board-side terminal, thereby forming divided terminal pieces, the divided terminal pieces being configured to be inserted between the pair of elastic terminal pieces for power output from the press-fit type base-board-side terminal or for power input to the press-fit type base-board-side terminal.

An electromotive drive device comprising:

• an electric motor for driving a mechanical-system control element;
• an electronic control unit arranged on an opposite side to an output shaft of the electric motor for controlling the electric motor;
• a power-conversion circuit board provided in the electronic control unit and equipped with a power-conversion circuit for driving at least the electric motor and a control circuit board provided in the electronic control unit and equipped with a control circuit for controlling the power-conversion circuit;
• a power-supply connector-side terminal of a power supply connector and a power-supply base-board-side terminal connected to the power-supply connector-side terminal and disposed on the power-conversion circuit board;
• a power-conversion connector-side terminal of each phase of the electric motor and a power-conversion base-board-side terminal connected to the power-conversion connector-side terminal and disposed on the power-conversion circuit board;
• at least one of the power-supply base-board-side terminal and the power-conversion base-board-side terminal being formed as a press-fit type terminal having a pair of elastic terminal pieces in which both ends of an elongated flat-plate shaped metal terminal material are inwardly bent to be opposed to each other, and further bent to provide elasticity in a direction such that the bent portions are opposed to each other;
• and
• at least one of the power-supply connector-side terminal and the power-conversion connector-side terminal being formed as a flat-plate shaped terminal, the flat-plate shaped terminal being divided into at least two portions along an insertion direction such that the flat-plate shaped terminal is inserted between the pair of elastic terminal pieces of the press-fit type terminal, thereby forming divided terminal pieces, the divided terminal pieces being configured to be inserted between the pair of elastic terminal pieces of the press-fit type terminal.