ROTATING BODY NONCONTACT POWER FEEDING DEVICE AND TORQUE SENSOR

• Main Authors: MIYAJIMA, Kentarou, SOMA, Atsuo, URUSHIHATA, Yuuya, ASHIDA, Kisho, ISHII, Makoto, IWAISHI, Keisuke, SASAKI, Motohiro, ICHIKAWA, Katsuei
• Format: Patent
• Language: English; French; German
• Published: 26.09.2018
• Subjects: BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; CYCLES; ELECTRICITY; GENERATION; INDUCTANCES; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; MAGNETS; MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; PERFORMING OPERATIONS; PHYSICS; POWERED PROPULSION OF SLEDGES OR; RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; SYSTEMS FOR STORING ELECTRIC ENERGY; TESTING; TRANSFORMERS; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES; TRANSPORTING

A rotating body non-contact power-feeding device comprises: a power receiving-side substrate with a power receiving-side circuit component mounted thereat, which is fixed to a rotating shaft supported via a bearing and rotates as one with the rotating shaft; and a power transmitting-side substrate with a power transmitting-side circuit component mounted thereat, which is fixed to a holding unit holding the bearing so that a substrate surface thereof faces opposite a substrate surface of the power receiving-side substrate and is connected with a power source, wherein: a power transmitting-side coil is formed with a conductive pattern so as to achieve a flat-plane spiral pattern with a plurality of turns at a substrate surface facing opposite the power receiving-side substrate and the power transmitting-side circuit component is mounted at another substrate surface, at the power transmitting-side substrate that includes a substrate front surface and a substrate back surface, a power receiving-side coil is formed with a conductive pattern so as to achieve a flat-plane spiral pattern with at least one turn at a substrate surface facing opposite the power transmitting-side substrate and the power receiving-side circuit component is mounted at another substrate surface, at the power receiving-side substrate that includes a substrate front surface and a substrate back surface; and the power transmitting-side coil and the power receiving-side coil are magnetically coupled with each other so as to allow power to be contactlessly fed from the power transmitting-side substrate to the power receiving-side substrate.