Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Hiroaki Kurihara

Atsushi Fujita

Yoshiharu Omori

Hideki Sadakata

Daisuke Bessyo

Yoshihiro Sakamoto

Yasuhiro Umekage

Kazuhiro Kuroyama

Takashi Kashimoto

Tadashi Miki

Osamu Eguchi

Masami Fukumoto

A coil for a non-contact power transmission system according to the present disclosure is used in a non-contact power transmission system to transmit electric power via a non-contact method. The coil includes a first coil in which a wire is wound around at a center of a core; and a second coil placed at an end of the core, and wound with the wire. Winding axes of the first and second coils are oriented in different directions.

Coil for non-contact power transmission system and non-contact power transmission system

A power feeder of a contactless power transmission device includes a housing base member, a primary coil provided on the housing base member and configured to generate magnetic flux, a cover attached to the housing base member and configured to cover the primary coil, a capacitance sensor including a detection electrode between the primary coil and the cover, and configured to detect foreign matter around the cover based on a change in capacitance detected using the detection electrode, and a high-dielectric member embedded in the cover and having a permittivity higher than that of a material for the cover.

Contactless power transmission device, and power feeder and power receiver for use in the same

A contactless power transmission device includes a power receiver, a power feeder configured to contactlessly feed power to the power receiver, the power feeder including a primary coil configured to generate magnetic flux by an input alternating current voltage, and a cover configured to cover the primary coil, and a capacitive sensor configured to supply an alternating current voltage to an electrode to measure a capacitance occurring between the electrode and foreign matter present around the cover and thereby detect the foreign matter. The frequency of the alternating current voltage of the capacitive sensor is set to be higher than the frequency of the magnetic flux generated by the primary coil.

Contactless power transmission device

Disclosed is a noncontact power transmission system including a power transmission device for transmitting power to a power receiving device in a noncontact manner. The power transmission device includes a cover covering a portion of an outline of the power transmission device where the power transmission device faces the power receiving device, a base covering another portion of the outline of the power transmission device where the power transmission device does not face the power receiving device, a magnetic body arranged in a space enclosed with the cover and the base, a coil bobbin covering the magnetic body partially or entirely, and a coil wire which is wound around the coil bobbin and which generates a magnetic flux upon receiving an alternating current. The coil bobbin includes a load support.

Noncontact electric power transmission equipment

An indoor dust collecting system includes an air conditioner having an indoor unit that generates an air current, a dust collector, and a controller for controlling the air current from the indoor unit. A moving body detector is provided to detect a moving body such as, for example, a person, a pet, a cleaning robot, and the like. The air current from the indoor unit is controlled by the controller based on the position of the indoor unit, the position of a spot of occurrence of dust detected by the moving body detector, and the position of the dust collector such that the air current from the indoor unit reaches the dust collector via the spot of occurrence of dust in order for the dust collector to effectively suck the dust.

Growing community of inventors

Shiga, Japan

Hiroaki Kurihara