RESONANCE TYPE POWER TRANSMISSION DEVICE AND RESONANCE TYPE POWER MULTIPLEX TRANSMISSION SYSTEM

• US 20160197520A1
• Filed: 08/20/2014
• Published: 07/07/2016
• Est. Priority Date: 08/23/2013
• Status: Active Grant

• Current Assignee: Mitsubshi Electric Engineering Company Limited (Mitsubishi Electric Corporation)
• Original Assignee: Mitsubshi Electric Engineering Company Limited (Mitsubishi Electric Corporation)
• Inventors: AKUZAWA, Yoshiyuki, ITO, Yuki
• Granted Patent: US 9,712,000 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H02J 50/05 using capacitive coupling
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/50 using additional energy repeaters between transmitting devices and receiving devices
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields

Abstract

Disclosed is a resonance type power transmission device that transmits electric power by using a resonator for transmission 3 and a resonator for reception 4 whose resonance conditions are matched to each other, the resonance type power transmission device including a transmission power supply 1 to supply electric power, a transmission antenna 2 to transmit the electric power from the transmission power supply 1, a conductive substance 7 to establish an electrical single point connection between the resonator for transmission 3 and the resonator for reception 4, a reception antenna 5 to receive the electric power from the transmission antenna 2 via the resonator for transmission 3 and the resonator for reception 4, and a reception power supply 6 to receive the electric power received by the reception antenna 5.

Claims

1. A resonance type power transmission device comprising:

a resonance device for transmission;

a resonance device for reception whose resonance conditions is matched to that of said resonance device for transmission; and

a conductive substance to establish an electrical single point connection between said resonance device for transmission and said resonance device for reception.

2. The resonance type power transmission device according to claim 1, wherein said resonance device for transmission includes a transmission antenna and a resonator for transmission which are configured separately, and said resonance device for reception includes a reception antenna and a resonator for reception which are configured separately.

3. The resonance type power transmission device according to claim 1, wherein said resonance type power transmission device comprises a resonator for relay which is disposed between said resonance device for transmission and said resonance device for reception, and whose resonance condition is matched to said resonance conditions.

4. The resonance type power transmission device according to claim 1, wherein a plurality of said resonance devices for reception are disposed, and said conductive substance connects between said resonance device resonator for transmission and each of said plurality of resonance devices for reception.

5. The resonance type power transmission device according to claim 1, wherein said conductive substance is divided into two portions, and one of the portions is connected to said resonance device for transmission and the other portion is connected to said resonance device for reception.

6. The resonance type power transmission device according to claim 1, wherein said resonance device for transmission and said resonance device for reception perform magnetic-field resonance.

7. The resonance type power transmission device according to claim 1, wherein said resonance device for transmission and said resonance device for reception perform electric-field resonance.

8. The resonance type power transmission device according to claim 1, wherein said resonance device for transmission and said resonance device for reception perform electromagnetic induction.

9. The resonance type power transmission device according to claim 2, wherein each of said transmission and reception antennas is configured with two or more coils.

10. The resonance type power transmission device according to claim 1, wherein said resonance type power transmission device includes a reception power supply circuit to change the resonance condition of said resonance device for reception according to a transmission state of said resonance device for reception.

11. The resonance type power transmission device according to claim 1, wherein said resonance type power transmission device includes a transmission power supply circuit to change the resonance condition of said resonance device for transmission according to a transmission state of said resonance device for transmission.

12. A resonance type power multiplex transmission system including a plurality of resonance type power transmission devices each comprising a resonance device for transmission and a resonance device for reception whose resonance conditions is matched to that of said resonance device for transmission, each of said resonance type power transmission devices comprising:

a conductive substance to establish an electrical single point connection between said resonance device for transmission and said resonance device for reception.

13. The resonance type power multiplex transmission system according to claim 12, wherein the conductive substances of said plurality of resonance type power transmission devices are commonized among them.

14. A resonance type power transmission device comprising:

a resonance device for transmission; and

a connector to connect said resonance device for transmission to a conductive substance at an electrical single point.

15. A resonance type power reception device comprising:

a resonance device for reception; and

a connector to connect said resonance device for reception to a conductive substance at an electrical single point.