Contactless Power Supply System

JP7731759B2Active Publication Date: 2025-09-01NITTOKU CO LTD
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Patent Information

Application Number
JP2021168742
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-10-14
Publication Date
2025-09-01
Estimated Expiration
2041-10-14

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Abstract

To reduce power consumption in a cancel coil.SOLUTION: In a non-contact power supply system that supplies power to a carrier 30 moving on a power transmission device 10 from the power transmission device 10 in a non-contact manner, the power transmission device 10 has a power transmission coil 12, cancel coils 14, 15, and a control unit 18 for controlling power to be supplied to the power transmission coil 12 and the cancel coils 14, 15. The carrier 30 has a power reception coil 32 electromagnetically coupled to the power transmission coil 12. The cancel coils 14, 15 are arranged symmetrically with the center of the power transmission coil 12 in a short direction interposed therebetween, and the plurality of cancel coils are arranged in a longitudinal direction of the power transmission coil 12. The control unit 18 changes power to be supplied to the plurality of cancel coils 14, 15 in accordance with the movement of the carrier 30.SELECTED DRAWING: Figure 2
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