DOUBLE BIPOLAR MAGNETIC FIELDS FOR ROTARY HIGH VOLTAGE CONTACTOR IN AUTOMOTIVE LITHIUM ION BATTERY SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide an automotive battery system contactor and a device and method needed for related switching operations.

SOLUTION: A magnetic field is aligned with a direction in which an electric current flows in a contact plate disposed between magnets generating the magnetic field and a Lorentz force generated thereby promotes extinction of an arc through a relay opening sequence, while also the Lorentz force may be used to reduce a tendency of obstructing the operation of a mechanism which actuates a solenoid or another switch. When a rotary base mechanism is utilized to establish contact between the contact plate and a current conveyance terminal, a possibility that the relay will open unintentionally is reduced. Such a device and method may be used in both a hybrid engine vehicle and an electric vehicle.

COPYRIGHT: (C)2012,JPO&INPIT