Yazaki Corporation

Toyota Jidosha Kabushiki Kaisha

Noritaka Taguchi

Shingo Tanaka

Satoru Horiuchi

Masamitsu Ookawa

Shinji Ichikawa

Yoichi Ido

Kenji Matsushita

Kazuyoshi Kagami

Tatsuo Toba

Yuta Nakagawa

Kyoko Furuhashi

Shuichi Muramatsu

A coupling electrode of a communication coupler is installed at an opening of a substrate and is, viewed from an orthogonal direction orthogonal to a coil axial direction of a power transmission coil, positioned to the substrate side in the coil axial direction than a coil end portion of the power transmission coil opposite side to the substrate. For example, an end portion of the coupling electrode on a communication side in the coil axial direction positions, viewed from the orthogonal direction, at the same position as a surface of the substrate opposite to the power transmission coil, in the coil axial direction.

Power transmitting communication unit

An impedance control device includes a diode bridge rectifier circuit and a controller. The controller is configured to control, based on impedance of a battery that is coupled to output terminals of the diode bridge rectifier circuit, the capacitance of a first capacitance variable unit and capacitance of a second capacitance variable unit of the diode bridge rectifier circuit.

Impedance control device and vehicular non-contact power receiving device

Provided is a power supply system which can reduce a decrease in transmission efficiency caused by displacement of a power supply side coil with respect to a power reception side coil and which can supply power from a power supply unit to a power reception unit with high efficiency. A power supply part includes a power supply side helical coil () to which power is supplied. A power reception part includes a power reception side helical coil () which electromagnetically-resonates with the power supply side helical coil () and receives power from the power supply side helical coil (). Impedances of the power supply part and the power reception part are matched at position where center axes (Z, Z) of the power supply side helical coil () and the power reception side helical coil () are displaced with respect to each other.

Power supply system

There is provided a shield case allowing efficient power delivery while ensuring environmental resistant such as strength and waterproof and provided a contactless feed system using the shield case. A contactless feed system includes: a feed-side device installed in a fixed body; a receive-side device installed in a mobile body and fed electric power from the feed-side device in a contactless manner, and a shield case used in the feed-side device of the contactless feed system includes: a case open toward the receive-side device; a coil housed in an interior of the case; and a cover covering an opening of the case, wherein a load support member extending from a bottom surface of the case to an inner surface of the cover is provided inside the case.

Contactless feed system and shield case for the same

Growing community of inventors

Kanagawa, Japan

Noritaka Taguchi