Electrical power supply circuit of a vehicle electrical energy storage unit

Abstract

Secondary sub-circuit (6) for supplying power to an electrical energy storage unit (2), this secondary sub-circuit (6) being capable of exchanging electrical energy without contact by inductive coupling with a primary sub-circuit (4) capable of being connected to a voltage network (5), and this sub-circuit (6) also being capable of being connected to an electrical energy storage unit (2), the secondary sub-circuit (6) comprising: - a secondary inductive cell (20) for the exchange of electrical energy without contact by inductive coupling with the primary sub-circuit (4), this secondary inductive cell (20) having a first terminal (30) and a second terminal (31), - an inverter / rectifier (23) capable of performing impedance matching of the impedance on the AC input of this inverter / rectifier (23), independently of the impedance of the electrical energy storage unit (2),This inverter / rectifier (23) comprising N1 first switching arms (24a), with N1 greater than or equal to 2, each first switching arm (24a) comprising two controllable electronic switches (12) disposed on either side of a midpoint (25a) of said first switching arm (24a), each of these N1 first arms (24a) being capable of being controlled so as to switch at the same frequency and with a phase shift of 360 / N1° from one arm to the other, the secondary subcircuit (6) comprising N1 first inductors (33), each of these N1 first inductors (33) connecting a midpoint (25a) of a first switching arm (24a) to the first terminal (30) of the secondary inductive cell (20). Abbreviated figure: Fig. 1,

Claims

13. Power supply circuit according to claim 12, the inverter / rectifier (21) of the primary subcircuit comprising N3 switching arms (7) with N3 greater than or equal to 2, each switching arm (7) comprising two controllable electronic switches disposed on either side of a midpoint of said switching arm, each of these N3 arms being capable of being controlled so as to switch at the same frequency and with a phase shift of 360 / N3° from one arm to the other, the primary subcircuit (4) comprising N3 inductors, each of these N3 inductors connecting a midpoint of a switching arm (7) to a terminal (18, 19) of the primary inductive cell (10).

14. Component for the power supply of an electrical energy storage unit (2), comprising the electrical circuit (1) according to claim 12 or 13, the component defining in particular a structure rigidly coupled to each other supporting the primary sub-circuit (4) and the secondary sub-circuit (6).

15. Device for supplying power to an electrical energy storage unit (2), comprising: - the electrical circuit according to claim 12 or 13, - a charging station for a hybrid or electric vehicle, in which the primary sub-circuit (4) of the electrical circuit (1) is disposed or to which the primary sub-circuit (4) is electrically connected, and - a component suitable for being carried in a hybrid or electric vehicle, in which the secondary sub-circuit (6) of the electrical circuit (1) is disposed. [Fig. 1] [Fig. 2] 4 [Fig. 3] 24a 24 b 90' /

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