Title:
CONTACTLESS POWER FEED EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2012/124580
Kind Code:
A1
Abstract:
When the power feed from a power supply device (12) to an induction line (14) is to be initiated, the oscillation frequency of an inductor (24) of the power supply device (12) is set to a prescribed frequency offset from the frequency at which a resonant circuit resonates. After a prescribed period of time passes, the oscillation frequency is modified from the prescribed frequency to the resonant frequency. Thus, even if every transport carriage (17) were to attempt to take power from the induction line (14) in full-load mode, the amount of power drawn by the resonant circuits of each transport carriage (17) would be reduced, resulting in the overall power drawn being restricted to the power that the power supply device (12) can provide, avoiding an overload of the power supply device (12).
More Like This:
| JP7261092 | Receiving device |
| JP2008126678 | NON-CONTACTING FEEDING SYSTEM |
| JP5375459 | Transport vehicle running system |
Inventors:
YAMAMOTO MASAAKI
Application Number:
PCT/JP2012/055898
Publication Date:
September 20, 2012
Filing Date:
March 08, 2012
Export Citation:
Assignee:
DAIFUKU KK (JP)
YAMAMOTO MASAAKI
YAMAMOTO MASAAKI
International Classes:
B60L5/00; B60M7/00
Foreign References:
| JP2008206327A | 2008-09-04 | |||
| JP2000125487A | 2000-04-28 | |||
| JP2009268181A | 2009-11-12 | |||
| JP2005313884A | 2005-11-10 |
Attorney, Agent or Firm:
MORIMOTO INT'L PATENT OFFICE (JP)
Patent business corporation Morimoto international patent firm (JP)
Patent business corporation Morimoto international patent firm (JP)
Download PDF:
Claims:
Previous Patent: FLUID PATH DEVICE
Next Patent: SECONDARY-SIDE POWER RECEPTION CIRCUIT FOR CONTACTLESS POWER FEED EQUIPMENT
Next Patent: SECONDARY-SIDE POWER RECEPTION CIRCUIT FOR CONTACTLESS POWER FEED EQUIPMENT