Title:
POWER SUPPLY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2011/058699
Kind Code:
A1
Abstract:
Disclosed is a power supply system of a hydraulic unit comprising a hydraulic pump (32), a pump motor (33), a hydraulic actuator (35), a main battery (41), a sub-battery (42), an inverter (43) that actuates the pump motor (33) by converting DC power from the main battery (41) to AC power and supplying the AC power to the pump motor (33), and a controller (44) that is actuated by receiving DC power from the sub-battery (42), wherein a relay (47) is provided for switching on/off charging from the main battery (41) to the sub-battery (42), and the relay (47) is switched on when the controller (44) detects the remaining amount of electricity in the sub-battery (42), and the remaining amount is less than a prescribed amount.
More Like This:
Inventors:
KUMEUCHI, Kengo (205, Uwadaira, Sakakimachi, Hanishina-gu, Nagano 05, 〒3890605, JP)
粂内 健吾 (〒05 長野県埴科郡坂城町上平２０５ 株式会社竹内製作所内 Nagano, 〒3890605, JP)
粂内 健吾 (〒05 長野県埴科郡坂城町上平２０５ 株式会社竹内製作所内 Nagano, 〒3890605, JP)
Application Number:
JP2010/006190
Publication Date:
May 19, 2011
Filing Date:
October 19, 2010
Export Citation:
Assignee:
TAKEUCHI MFG. CO., LTD. (9347, Oaza Sakaki Sakakimachi, Hanishina-gu, Nagano 01, 〒3890601, JP)
株式会社竹内製作所 (〒01 長野県埴科郡坂城町大字坂城９３４７ Nagano, 〒3890601, JP)
KUMEUCHI, Kengo (205, Uwadaira, Sakakimachi, Hanishina-gu, Nagano 05, 〒3890605, JP)
株式会社竹内製作所 (〒01 長野県埴科郡坂城町大字坂城９３４７ Nagano, 〒3890601, JP)
KUMEUCHI, Kengo (205, Uwadaira, Sakakimachi, Hanishina-gu, Nagano 05, 〒3890605, JP)
International Classes:
H02J7/00; E02F9/20
Attorney, Agent or Firm:
OHNISHI, Shogo (S.OHNISHI & ASSOCIATES, HIGASHI-IKEBUKURO SS BUILDING 1F 3-20-3, Higashi-Ikebukuro, Toshima-k, Tokyo 13, 〒1700013, JP)
Download PDF: