Inductive charging device for a portable apparatus incorporating a near-field communication antenna

摘要

An inductive charging device (20) for a portable apparatus for an automobile vehicle including at least one charging antenna (70) for inductive charging of the WPC type having a cut-out at its center (62) together with one communication antenna (60) for near-field communication of the NFC type, situated around the at least one charging antenna, along the sides of the charging device (Z1, Z2, Z3, Z4) and including at least one winding, the device being such that:
on at least one of the sides of the charging device, the communication antenna forms at least one loop (B) having at least one crossing point (61) on its base, the communication antenna having at least an upper part (63) surrounding the center of the cut-out of the charging antenna,the upper part of the loop of the communication antenna surrounding the center of the cut-out has at least one winding.

主权项

1. An inductive charging device for a portable apparatus for an automobile vehicle comprising at least:
one antenna for inductive charging, called charging antenna, having a cut-out at its center and, one antenna for communicating, called communication antenna, disposed around at least the charging antenna, along sides of the charging device and comprising at least one winding, said device being characterized in that: on at least one of the sides of the charging device, the communication antenna forms at least one loop having at least one crossing point on its base, the loop of said communication antenna having at least one upper part surrounding the center of the cut-out of the charging antenna, the upper part of the loop of the communication antenna surrounding the center of the cut-out has at least one winding, and the number of windings on the upper part of the communication antenna surrounding the center of the cut-out is greater than the number of windings on the communication antenna situated around the charging antenna.