Magnet switch for starters
AssigneeNippondenso Co., Ltd.
InventorsMasami Niimi, Tsutomu Shiga, Nobuyuki Hayashi
Life of this patent
Estimating the term…
Abstract
In a starter, when a magnet switch is operated for starter operation, an auxiliary movable contact connected to a main movable contact by a holding member comes into contact with an auxiliary stationary contact to supply an electric current from a battery through resistors, auxiliary stationary contact and auxiliary movable contact to apply a low voltage to a motor for low speed rotation. Subsequently, as a plunger of the magnet switch moves further, the main movable contact comes into electrical contact with a main stationary contact, so that the resistors are short-circuited and the electric current from the battery flows to the motor without flowing through the resistors to drive the motor for high speed rotation.
Claims15
A magnet switch for a starter for supplying an electric current from a battery to a starter motor, the magnet switch comprising:
- a main stationary contact connectable to the battery;
- a heat generating member electrically connected to the main stationary contact for generating heat when the current is supplied thereto;
- and
- an auxiliary stationary contact electrically connected to the main stationary contact through the heat generating member,
- wherein the main stationary contact and the auxiliary stationary contact are adapted to be brought into a conducting state to control current supply to the starter motor.
Dependencies are inferred from the claim text.