Tsubakimoto Chain Company

Satoshi Takashige

Kenzo Yamamoto

Haruyoshi Kitayoshi

Hideaki Minami

Makoto Uehira

Shingo Koyama

Hisaichi Irie

In a power feeding apparatus having pickup coils L and L , a rectifier circuit and output terminals U and V, the relays R and R are connected between the output side terminals of the rectifier circuit and the output terminals U and V. Whereas a protective circuit (switching control circuit) , which is connected to the pickup coils L and L and the relay coils r and r to obtain the electric power from the output side terminals of the rectifier circuit in order to carry out ON/OFF control of the relays R and R corresponding to the voltage at the both ends of the pickup coils L and L , is provide. The power feeding apparatus enables to prevent an overcurrent from flowing through a load, to prevent the circuit elements from being destroyed or burnt out due to an overcurrent generated in the pickup coils or an overvoltage generated in a resonance capacitor, to indicate an occurrence of an abnormality and to control the electric power supply by means of a remote control.

Power feeding apparatus, transporter and transport system

The present invention provides a non-contact power supply apparatus which is suitable for three-dimensional running by improving an allowable degree in a relative displacement of a carrier vehicle and a guide rail in the case where the carrier vehicle is running along the guide rail while receiving a drive power. The non-contact power supply apparatus has a pickup portion which is constructed in a manner that a pair of plate portions made of a magnetic material and having an area wider than a bonding area to an opening end are arranged in parallel, and are bonded or formed integrally with opposite surfaces of both opening ends of a pickup core having a C-letter or U-letter shape.

Non-contact power supply apparatus and pickup portion used therein

In a non-contact power supply apparatus which interlinks a magnetic flux generated by an AC current flowing through a primary circuit with a secondary circuit so that an induced power is generated in the secondary circuit, and supplies a constant voltage to a load, the secondary circuit is composed of a plurality of inductors connected in series, and each of a plurality of capacitors is interposed between inductors. The total sum of inductance of the plurality of inductors and the total sum of capacitance of the plurality of capacitors have a resonant relation with respect to an AC current of the primary circuit.

Growing community of inventors

Osaka, Japan

Satoshi Takashige