Resonance-type non-contact power supply system

Patent metadata

Field	Value
Publication number	US-9484149-B2
Application number	US-201314044948-A
Country	US
Kind code	B2
Filing date	Oct 3, 2013
Priority date	Apr 22, 2011
Publication date	Nov 1, 2016
Grant date	Nov 1, 2016

Abstract

A resonance-type non-contact power supply system includes a power-transmission-side metal shield to cover an area around a primary coil and a primary resonance coil. A coaxial cable outer conductor of a power-transmission-side coaxial cable and the power-transmission-side metal shield are threadedly engaged using a coaxial male connector and a coaxial female connector.

First claim

What is claimed is:

1. A resonance-type non-contact power supply system which comprises a power-transmission-side resonance coil part and a power-receiving-side resonance coil part, and which transmits electric power by a non-contact resonance effect from the power-transmission-side resonance coil part to the power-receiving-side resonance coil part, the system further comprising:
a first coaxial cable which electrically connects a high frequency power supply and the power-transmission-side resonance coil, and
a power-transmission-side shield part which is a conductor and covers from outside to accommodate the power-transmission-side resonance coil part, and which is electrically connected to a housing of the high frequency power supply by an outer conductor of the first coaxial cable, wherein
a size of the power-transmission-side shield part is set so that an electromagnetic coupling of the power-transmission-side resonance coil part is not affected,
the power-transmission-side shield part accommodates the power-transmission-side resonance coil part not to protrude from the power-transmission-side shield part,
a first transmission opening is provided on a bottom of the power-transmission-side shield part and the outer conductor of the first coaxial cable is connected to an inner edge of the first transmission opening, and
the power-transmission-side shield part comprises a first cover body which has such a material and such a construction that an electromagnetic coupling of the power-receiving-side resonance coil part is not affected.

2. The resonance-type non-contact power supply system according to claim 1 , further comprising:
a second coaxial cable which electrically connects the power-receiving-side resonance coil part and a load device, and
a power-receiving-side shield part which is a conductor and covers from outside to accommodate the power-receiving-side resonance coil part, and which is electrically connected to a housing of the load device by an outer conductor of the second coaxial cable, and wherein
a size of the power-receiving-side shield is set so that an electromagnetic coupling of the power-receiving-side resonance coil part is not affected,
the power-receiving-side shield part accommodates the power-receiving-side resonance coil part not to protrude from the power-receiving-side shield part, and
a second transmission opening is provided on a bottom of the power-receiving-side shield part and the outer conductor of the second coaxial cable is connected to an inner edge of the second transmission opening.

3. The resonance-type non-contact power supply system according to claim 2 , wherein the power-receiving-side shield part comprises a second cover body which has such a material and such a construction that the electromagnetic coupling of the power-transmission-side resonance coil part is not affected.

4. A resonance-type non-contact power supply system which comprises a power-transmission-side resonance coil part and a power-receiving-side resonance coil part, and which transmits electric power by a non-contact resonance effect from the power-transmission-side resonance coil part to the power-receiving-side resonance coil part, the system further comprising:
a second coaxial cable which electrically connects the power-receiving-side resonance coil part and a load device; and
a power-receiving-side shield part which is a conductor and covers from outside to accommodate the power-receiving-side resonance coil part, and which is electrically connected to a housing of the load device by an outer conductor of the second coaxial cable, and wherein
a size of the power-receiving-side shield is set so that an electromagnetic coupling of the power-receiving-side resonance coil part is not affected,
the power-receiving-side shield part accommodates the power-receiving-side resonance coil part not to protrude from the power-receiving-side shield part,
a second transmission opening is provided on a bottom of the power-receiving-side shield part and the outer conductor of the second coaxial cable is connected to an inner edge of the second transmission opening, and
the power-receiving-side shield part comprises a second cover body which has such a material and such a construction that an electromagnetic coupling of the power-transmission-side resonance coil part is not affected.

Assignees

• Yazaki Corp

Inventors

• Nakahara Takahiro
• YANAGIDA You
• NGAHU Antony

Classifications

• B60L53/122

  Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil · CPC title

• H01F27/02

  Casings · CPC title

• B60L2270/147

  electro magnetic [EMI] · CPC title

• B60L2210/10

  DC to DC converters · CPC title

• B60L2210/40

  DC to AC converters · CPC title