Provided are a relay device and a power supply device that can switch on/off a current path between power storage units, and can suppress, if an earth fault has occurred on either power storage unit side, a voltage reduction on the other power storage unit side. A relay device includes: a serial structural portion in which a resistance unit and a switch unit are connected in series to each other; a relay unit that serves as a path for a current to flow between a first power storage unit and a second power storage unit when the switch unit is in the ON state; and a control unit configured to perform control of switching the switch unit of the relay unit.
Relay device and power supply device
2019-09-03
Patent
Electronic Resource
English
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |