TRANSMITTER COILS FOR CONTACTLESS ENERGY TRANSMISSION SYSTEMS WITH COUPLING ENHANCEMENT AND STRAY FIELD REDUCTION

摘要

The invention relates to a transmitter coil (1, 1a . . . 1f) for a contactless energy transmission system (8), comprising a winding (2) with a number of turns of at least one conductor. The winding (2) occupies a ring area (3) between an outer larger unequilateral rectangle (4) and an inner smaller unequilateral rectangle (5). The ring area (3) is wider on the longer side (x1) of the outer rectangle (4) than it is on the shorter side (x2) thereof. Moreover a transmitter (6) with such a transmitter coil (1, 1a . . . 1f) is proposed, which comprises a number of conductors and a number of power supplies (7, 7a, 7b) which can be switched and/or controlled independently of each other. Finally the invention also relates to an energy transmission system (8) with such a transmitter coil (1a . . . 1f)/such a transmitter (6) as well as a receiver coil (10) installed in a motor vehicle (9).

主权项

1. A transmitter coil (1, 1a, . . . 1f) for a contactless energy transmission system (8), comprising a winding (2) with a number of turns of at least one conductor, which occupies a ring area (3) between an outer larger unequilateral rectangle (4) and an inner smaller unequilateral rectangle (5),
characterised in that the ring area (3) is wider on the longer side (x1) of the outer rectangle (4) than on the shorter side (x2) thereof.