| US 7,511,389 B2 | ||
| Emergency electric power supply unit | ||
| Tadahiko Ozawa, Tokyo (Japan); Tetsuo Torii, Tokyo (Japan); Norio Ashitate, Tokyo (Japan); and Iwao Sagara, Tokyo (Japan) | ||
| Assigned to Kayaba Industry Co., Ltd., Tokyo (Japan); and Ashitate Electric Co., Ltd., Tokyo (Japan) | ||
| Appl. No. 11/791,859 PCT Filed Nov. 29, 2005, PCT No. PCT/JP2005/022247 § 371(c)(1), (2), (4) Date May 30, 2007, PCT Pub. No. WO2006/059751, PCT Pub. Date Jun. 08, 2006. |
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| Claims priority of application No. 2004-345960 (JP), filed on Nov. 30, 2004; and application No. 2004-345975 (JP), filed on Nov. 30, 2004. | ||
| Prior Publication US 2007/0262649 A1, Nov. 15, 2007 | ||
| Int. Cl. H02P 9/00 (2006.01) | ||
| U.S. Cl. 307—64 [307/66; 307/9.1; 307/10.1] | 6 Claims |
| 1. An emergency electric power supply unit for backing up a main electric power supply system at the time of the malfunction
of the main electric power supply system comprising:
an industrial apparatus operated by cooperatively controlling an auxiliary machinery operated by the electric power supplied
from the main electric power supply system;
an auxiliary electric power supply for storing the electric power;
a charging circuit for charging the electric power supplied from the main electric power supply in the auxiliary electric
power supply;
a discharging circuit for supplying the electric power charged in the auxiliary electric power supply to the auxiliary machinery;
and
an emergency controlling circuit for controlling the discharging circuit so that the electric power from the auxiliary electric
power supply is supplied to the auxiliary machinery at the time of the malfunction of the main electric power supply system,
and for controlling the operation of the auxiliary machinery in response to the operational state of the industrial apparatus
at the time of the malfunction of the main electric power supply system.
|