RELAY MODULE AND POWER RELAY ASSEMBLY FOR VEHICLE BATTERY SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a relay module for a vehicle battery system capable of improving a failure diagnosis performance and securing safety of a vehicle system at occurence of failures of a relay configuring a power relay assembly.SOLUTION: A relay module for a vehicle battery system includes: a movable member moving in a relay by a magnetic field of a coil and a return spring to connect and disconnect an electrical connection state of a relay electrode; and a micro sensor installed between the movable member and a fixed member maintaining a fixed position with respect to the movable member, and changing an electric physical quantity by position change of the movable member with respect to the fixed member.