Mitsubishi Electric Corporation

Takuma Ono

Yoshihiro Morimoto

Mitsuyasu Okamoto

Tasuku Ito

Provide an electromagnetic switch device for a starter, by which a winding fluctuation of a plurality of coils, of which wire diameters are different from each other, is prevented, which can be downsized and can be produced with a low cost. A bobbin, at which winding portions are separated by using a first flange portion which includes a first notch portion, second notch portions, and third notch portions, by which coils are led out, and a first separation wall and a second separation wall, which include the second notch portions and the third notch portions, by which coils are led out, is included, and a main aspiration holding coil, a sub-aspiration holding coil, and a resistance coil, of which wire diameters are different from each other, which are respectively wound around a first winding portion, a second winding portion, and a third winding portion, which are separated, are provided.

Electromagnetic switch device for starter

This bobbin includes: a cylindrical winding portion, a first partition portion and a second partition portion, wherein the first partition portion has lead-in cutout portions through which the coil wire to be wound on the upper side and the coil wire to be wound on the lower side are to be respectively introduced, and lead-out cutout portions through which the coil wire to be wound on the upper side and the coil wire to be wound on the lower side are to be respectively led out, and the first partition portion has, on a winding portion side thereof, a step formed in a zone including a range between the lead-out cutout portion for the coil wire to be wound on the lower side and the lead-in cutout portion for the coil wire to be wound on the upper side.

Bobbin and coil device using same

A movable iron core, a primary attracting and holding coil, a resistor electrically connected to an upstream start-up electric contact, and an auxiliary attracting and holding coil electrically connected to the upstream start-up electric contact are included. The movable iron core displaces a pinion from a separated position to a contact position. After the pinion is displaced from the separated position to the contact position, the upstream start-up electric contact is electrically disconnected from another start-up electric contact to cut off a current to the motor, and the movable iron core displaces the pinion from the contact position to an engaged position with the magnetomotive force of the primary attracting and holding coil and a magnetomotive force of the auxiliary attracting and holding coil. After the pinion is displaced from the contact position to the engaged position, main electric contacts are electrically connected to resume electric connection to the motor.

The electromagnetic switch device for a starter includes: an A connector which forms a starting circuit, which is connected to a starting resistor, and which has an end at which one of a pair of starting circuit contacts is located; a B connector which forms the starting circuit, which is connected to one of a pair of main fixed contacts, and which has an end at which the other of the pair of starting circuit contacts is located; an insulating member electrically insulating the A connector and the B connector from a main fixed core; and an elastic member sealing a contact chamber, wherein the A connector and the B connector are held between a terminal block and the main fixed core with the insulating member and the elastic member interposed therebetween.

An electromagnetic switch device for a starter includes: a terminal block in which a main contact chamber that is open at an attraction coil side in an axial direction and in which a pair of main fixed contacts and a main movable contact are located, and an auxiliary relay that is open at a side opposite to the attraction coil side in the axial direction, are located; a cover provided at an opening side of the terminal block at which the auxiliary relay is located, the cover having through holes through which main fixed contacts penetrate in a state where the auxiliary relay is sealed; and an elastic member which is located between the auxiliary relay and the cover and which fixes the auxiliary relay in the axial direction together with the terminal block and the cover.

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Tokyo, Japan

Takuma Ono