MULTIPLEX TRANSMISSION SYSTEM FOR WIRELESSLY TRANSMITTING POWER, TRANSMITTING SIDE MULTIPLEX TRANSMISSION DEVICE AND BILLING/INFORMATION SYSTEM

• US 20160105037A1
• Filed: 10/17/2013
• Published: 04/14/2016
• Est. Priority Date: 05/27/2013
• Status: Abandoned Application

• Current Assignee: Mitsubishi Electric Engineering Co Ltd (Mitsubishi Electric Corporation)
• Original Assignee: Mitsubishi Electric Engineering Corporation, Limited
• Inventors: AKUZAWA, Yoshiyuki, TAKAHASHI, Yoshiyuki
• Application Number:
  US14/893,285
• Publication Number:
  US 20160105037A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60L 53/122 Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• 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 50/402 the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H03H 7/01 Frequency selective two-port networks
• CPC Class Codes: H03H 7/48 Networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source phase shifters providing two or more output signals H03H7/21
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

Abstract

A multiplex transmission system including: a primary transmission power source that feeds power of a single frequency; a transmitter-receiver system that includes plural-line transmission antennas wirelessly transmitting power from the primary transmission power source, and plural-line reception antennas receiving power from the transmission antennas that form pairs with the reception antennas; a directional coupler-type transmission power source circuit establishing resonant condition of each of the transmission antennas; and plural-line reception power source circuits establishing resonant condition of each of the reception antennas that form the pairs. The directional coupler-type transmission power source circuit includes a directional coupler-type output filter that distributes power to the respective transmission antennas.

Claims

1. A multiplex transmission system by way of wireless power transmission, comprising:

a primary transmission power source that feeds power of a single frequency;

a transmitter-receiver system that comprises plural-line transmission antennas for wirelessly transmitting the power from the primary transmission power source, and plural-line reception antennas for receiving power from the transmission antennas that form pairs with the reception antennas;

a transmission power source circuit for establishing resonant condition of each of the transmission antennas; and

plural-line reception power source circuits for establishing resonant condition of each of the reception antennas that form the pairs;

wherein the transmission power source circuit is provided with a directional coupler-type output filter that distributes power to the respective transmission antennas.

2. The multiplex transmission system by way of wireless power transmission of claim 1, wherein the transmitter-receiver system performs wireless transmission by using magnetic field resonance.

3. The multiplex transmission system by way of wireless power transmission of claim 1, wherein the transmitter-receiver system performs wireless transmission by using electric field resonance.

4. The multiplex transmission system by way of wireless power transmission of claim 1, wherein the transmitter-receiver system performs wireless transmission by using electromagnetic induction.

5. The multiplex transmission system by way of wireless power transmission of claim 1, wherein the transmission antennas and the reception antennas are each constituted by two or more coils.

6. The multiplex transmission system by way of wireless power transmission of claim 1, wherein the reception power source circuit can change the resonance condition of the reception antennas according to a transmission condition by that reception antenna.

7. The multiplex transmission system by way of wireless power transmission of claim 1, wherein the transmission power source circuit can change the resonance condition of the transmission antenna according to a transmission condition by that transmission antenna.

8. The multiplex transmission system by way of wireless power transmission of claim 1, wherein the reception power source circuit has, with respect to its own operation, an ON/OFF circuit capable of setting ON/OFF of that operation.

9. The multiplex transmission system by way of wireless power transmission of claim 1, wherein the transmission power source circuit has, with respect to its own operation for each of the transmission antennas, ON/OFF circuits each capable of setting ON/OFF of that operation.

11. A billing/information system using the multiplex transmission system by way of wireless power transmission of claim 1, wherein the transmission antennas are located in a plurality of power feedable areas, respectively;

said billing/information system comprising;

a billing/information receiver that acquires a billing or information equivalent to that billing, from an apparatus located in the power feedable area and provided with the reception antenna and the reception power source circuit; and

a power feed controller that, according to the billing or the information acquired by the billing/information receiver, controls the primary transmission power source, the transmission power source circuit and the corresponding transmission antenna, so as to perform power feeding to the apparatus concerned.

10. A transmitting side multiplex transmission device, comprising:

a primary transmission power source that feeds power of a single frequency;

plural-line transmission antennas for wirelessly transmitting the power from the primary transmission power source; and

a transmission power source circuit for establishing resonant condition of each of the transmission antennas;

wherein the transmission power source circuit is provided with a directional coupler-type output filter that distributes power to the respective transmission antennas.