초록

This invention is a method and apparatus for controlling charging and/or discharging a battery for a hybrid electric vehicle (HEV).

대표청구항 ▼

This invention is a method and apparatus for controlling charging and/or discharging a battery for a hybrid electric vehicle (HEV). ircuit breaker includes at least one additional solder terminal and at least one additional control lead, said solder terminals include solder terminals projecting outs

This invention is a method and apparatus for controlling charging and/or discharging a battery for a hybrid electric vehicle (HEV). ircuit breaker includes at least one additional solder terminal and at least one additional control lead, said solder terminals include solder terminals projecting outside the casing, and said control leads are connected to respective ones of said solder terminals projecting from both sides of the casing, and the circuit breaker is attached to the printed circuit board via ones of said solder terminals that are projecting from both ends and from both sides of the casing. 13. A battery pack as recited in claim 10 wherein the circuit breaker has a self protection mechanism when the current shut off contact is switched to the off state, and the off state is maintained by heating of the current shut off contact by the resistive heating element. 14. A battery pack as recited in claim 1 wherein the circuit breaker contains a current shut off device, and this current shut off device is a PTC. 15. A battery pack as recited in claim 1 wherein the circuit breaker contains a current shut off device, and this current shut off device is a fuse. 16. A battery pack as recited in claim 1 wherein the printed circuit board has output terminals mounted on it, and the circuit breaker is electrically connected between the output terminals and the batteries. 17. A battery pack as recited in claim 1 wherein the printed circuit board is disposed in a fixed position facing the battery surfaces, a gap is established between the batteries and the printed circuit board, the circuit breaker is disposed in this gap, and the surface of the circuit breaker casing is put in close proximity to a battery surface. 18. A battery pack as recited in claim 1 wherein the printed circuit board is disposed in a fixed position at the battery surfaces via a holder. 19. A battery pack as recited in claim 18 wherein the holder has an insertion section to retain the printed circuit board in a fixed position, and the printed circuit board is inserted in the insertion section and held in a fixed position. 20. A battery pack as recited in claim 1 wherein the printed circuit board is bonded to the batteries to mount in a fixed position via thermal conducting resin. 21. A battery pack as recited in claim 20 wherein the side of the printed circuit board with the circuit breaker attached faces the batteries, and the circuit breaker is bonded to the batteries via thermal conducting resin. 22. A battery pack as recited in claim 1 wherein the circuit breaker is disposed in direct contact with a battery surface. 23. A battery pack as recited in claim 1 wherein one part of the casing is flexible metal plate, this flexible metal plate resiliently projects outward and elastically presses against a battery surface. 24. A battery pack as recited in claim 23 wherein the flexible metal plate has an overall curved shape and the center region resiliently projects outward. 25. A battery pack as recited in claim 1 wherein said solder terminal is in the same plane as the bottom of the casing, the solder terminal projects outside the casing, and the solder terminal is attached to the printed circuit board by solder re-flow. 26. A battery pack as recited in claim 1, wherein said circuit breaker includes at least one additional solder terminal. 27. A battery pack as recited in claim 26, wherein a plurality of said solder terminals are attached to the printed circuit board by solder reflow.