Brush holder integrated with voltage regulator for a vehicle AC generator
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsKatsumi Adachi, Ryuichi Ikeda, Kyoko Kurusu
Life of this patent
Estimating the term…
Abstract
A voltage regulating circuit is provided in a single mold package, which is attached to the case directly or by a heat conductive material such that it is sandwiched between the case of a voltage regulator and a heat sink, conductors which serve as internal wirings and form terminals are insert-molded with the case of the voltage regulator and the brush holder to be superimposed upon the case of the voltage regulator, out of the terminals formed in the conductors, specific terminals on respective sides are aligned, and the brush holder is installed in the case of the voltage regulator in such a manner that they are superimposed upon each other so that electrical connection of these elements is effected.
Claims19
An AC generator for use in a vehicle comprising:
- a case formed from an insulating material, which includes a circuit housing for housing a voltage regulating circuit for regulating the output voltage of a generator and a connector case for housing a connector as an integrated unit;
- a bracket;
- a brush holder, formed from an insulating material, for housing a brush of the generator;
- conductors which are insert-molded within the case and form connectors in the connector case and form case connection terminals;
- insert conductors forming brush holder connection terminals, said insert conductors being insert-molded with the brush holder and electrically connecting the brush holder to the connection terminals;
- and
- a heat sink for covering an opening of the circuit housing and cooling the voltage regulating circuit,
- wherein the voltage regulating circuit is provided in a mold package having terminals which are directly connected to the connection terminals formed by the conductors of the case and coupled to the circuit housing together with the heat sink, and the case and the brush holder are attached to the bracket of the generator in such a manner that the case and the brush holder are superimposed upon each other.
An AC generator for use in a vehicle comprising:
- a rear bracket (2);
- a brush (651);
- a brush holder (69) molded from an insulating material and comprising:
- an insert-molded insert conductor (691) which partially forms brush holder connection terminals (693) and electrically connects the brush with the brush holder connection terminals;
- a brush holder attachment hole (697) provided in a side surface of the brush holder;
- a flat portion (694) provided on a side surface remote from the side surface of the brush holder containing the attachment hole, and a cap (652);
- a cap holder (616) for fixing the cap of said brush holder, said cap holder having an end surface (618);
- a molded package (8);
- a voltage regulator (6) attached to the rear bracket;
- a voltage regulator case (61) molded from an insulating material and comprising:
- a circuit housing (62);
- a connector case (63) having an end surface (631);
- a capacitor case (64);
- and
- a voltage regulator case attachment hole (617);
- said voltage regulator case including conductors (611) insert molded within the voltage regulator case for coupling the voltage regulator with elements attached to the voltage regulator case, said conductors forming protruding connectors (612) of the connector case and first (613), second (614), and third (615) voltage regulator case connection terminals;
- a heat sink (84) coupled to the circuit housing;
- said voltage regulator case attachment hole being aligned with the brush holder attachment hole, said brush holder connection terminal being aligned with and electrically connected to the first voltage regulator case connection terminal, said end surface of the cap holder being flush with said end surface of the connector case, and said flat portion of the brush holder being flush with the end surface of the connector case.
Dependencies are inferred from the claim text.