Patent ID: 9114717
Filing Date: 2015-08-25
Classification: B60L,B60M,H01M,H02J,Y02E,Y02P,Y02T

Abstract:
1. A battery pack for use in an electric machine, the battery pack comprising: a first receiving antenna including a first inductor and a first capacitor for receiving electric power from a power supply source located outside the electric machine by coupling with a first resonant magnetic field generated by the power supply source; at least one secondary battery charged by the electric power received by the first receiving antenna; an oscillator for producing radio-frequency power by DC power discharged from the secondary battery; and a transferring antenna including a second inductor and a second capacitor for generating a second resonant magnetic field by the radio-frequency power; wherein a primary surface of the first inductor included in the first receiving antenna is located within the battery pack and is parallel to a first plane of the battery pack, and a primary surface of the second inductor included in the transferring antenna is located within the battery pack and is parallel to a second plane of the battery pack,