TRANSMITTING DEVICE, RECEIVING DEVICE, AND POWER TRANSMISSION SYSTEM

摘要

A power transmission system according to an embodiment includes a transmitting device and a receiving device. The transmitting (receiving) device includes a transmitting (receiving) housing and a transmitting (receiving) coil. The transmitting (receiving) housing includes a first transmitting (receiving) surface and a second transmitting (receiving) surface. The transmitting (receiving) coil includes a first transmitting (receiving) part and a second transmitting (receiving) part. A first facing area and a second facing area at the reference position are set such that change of strength of magnetic coupling between the transmitting coil and the receiving coil of when the receiving device is moved in a direction perpendicular to the first transmitting surface becomes smaller than change of strength of magnetic coupling between the transmitting coil and the receiving coil of when the receiving device is moved in a direction perpendicular to the second transmitting surface.

主权项

1. A power transmission system comprising:
a transmitting device including
a transmitting housing including a first transmitting surface and a second transmitting surface inclined with respect to the first transmitting surface, anda transmitting coil including a first transmitting part arranged in the transmitting housing at a side of the first transmitting surface and a second transmitting part arranged in the transmitting housing at a side of the second transmitting surface; and a receiving device including
a receiving housing including a first receiving surface and a second receiving surface inclined with respect to the first receiving surface, anda receiving coil including a first receiving part arranged in the receiving housing at a side of the first receiving surface and a second receiving part arranged in the receiving housing at a side of the second receiving surface, wherein a reference position of the receiving coil with respect to the transmitting coil at a time of power transmission is set such that the first receiving part and the first transmitting part face each other, and the second receiving part and the second transmitting part face each other, and a first facing area between the first receiving part and the first transmitting part at the reference position, and a second facing area between the second receiving part and the second transmitting part at the reference position are set such that change of strength of magnetic coupling between the transmitting coil and the receiving coil of when the receiving device is moved in a direction perpendicular to the first transmitting surface becomes smaller than change of strength of magnetic coupling between the transmitting coil and the receiving coil of when the receiving device is moved in a direction perpendicular to the second transmitting surface.