POWER TRANSMISSION EQUIPMENT AND NON-CONTACT POWER TRANSMISSION DEVICE

摘要

This power transmission equipment includes an AC power supply that outputs AC power, and a power transmitter to which said AC power is input. The power transmission equipment also includes an impedance converter that converts the input impedance of the power transmitter. The impedance converter is disposed between the AC power supply and the power transmitter. The constant of the impedance converter is set on the basis of the upper and lower limit values of the coupling coefficient.

主权项

1. A power transmission unit comprising:
an AC power supply that supplies AC power; and a primary-side coil that receives the AC power, wherein the power transmission unit allows the AC power to be transmitted to a secondary-side coil of a power receiving unit in a non-contact manner, one or more impedance converting portions that are arranged between the AC power supply and the primary-side coil and perform impedance conversion of an input impedance of the primary-side coil, wherein impedances of the impedance converting portions are set based on a lower limit and an upper limit in a changing range of a coupling coefficient between the primary-side coil and the secondary-side coil in a case in which relative positions of the primary-side coil and the secondary-side coil are changed within a predetermined allowable range.