Patent ID: 6380831
Filing Date: 2002-04-30
Classification: F02N

Abstract:
A starter motor magnetic switch for supplying power from a battery to a starter motor, the starter motor magnetic switch comprising:a center housing; a rear housing connected to the center housing at one end thereof; a holding coil and a pull-in coil wound coaxially around a bobbin and housed in the center housing; an auxiliary relay including an auxiliary coil, fixed contacts and a movable contact, the auxiliary relay being housed in the center housing, the auxiliary coil being placed coaxially with the holding coil and the pull-in coil in a vicinity thereof; a plunger having a movable contact plate fixed to one end thereof, the plunger being slidably installed through a center of the holding, pull-in and auxiliary coils, the movable contact plate being housed in the rear housing; a pair of fixed contacts constituting a motor switch together with the movable contact plate, the pair of fixed contacts being housed in the rear housing, the power of the battery being supplied to the starter motor by closing the pair of the fixed contacts with the movable contact plate upon energization of the holding, pull-in and auxiliary coils, wherein: a separating wall is disposed in either one of the housings to separate the motor switch from the auxiliary relay, the holding coil and the pull-in coil are so connected that power from the battery is supplied in parallel thereto; and the holding coil and the auxiliary coil are connected in series.