Power receiving connector, charging system and communication system

• US 9,531,131 B2
• Filed: 12/29/2012
• Issued: 12/27/2016
• Est. Priority Date: 01/10/2012
• Status: Active Grant

• Current Assignee: Autonetworks Technologies, Ltd. (Sumitomo Corporation), Sumitomo Electric Industries Limited (Sumitomo Corporation), Sumitomo Wiring Systems Limited (Sumitomo Corporation), Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Autonetworks Technologies, Ltd. (Sumitomo Corporation), Sumitomo Electric Industries Limited (Sumitomo Corporation), Sumitomo Wiring Systems Limited (Sumitomo Corporation), Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Takata, Yousuke, Okada, Ryou, Hagihara, Takeshi, Komatsu, Yutaka, Nakagawa, Nobuyuki
• Primary Examiner(s): TSO, EDWARD H
• Application Number:
  US14/371,410
• Publication Number:
  US 20150015203A1
• Time in Patent Office: 1,459 Days
• Field of Search: 320/107, 320/109, 320/111, 307/9.1, 307/10.1, 439/620.01, 439/620.21
• US Class Current: 1/1
• CPC Class Codes: B60L 2270/147 electro magnetic [EMI]
• CPC Class Codes: B60L 53/16 Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
• CPC Class Codes: B60L 53/18 Cables specially adapted for charging electric vehicles
• CPC Class Codes: B60L 53/66 Data transfer between charging stations and vehicles
• CPC Class Codes: H01R 13/648 Protective earth or shield arrangements on coupling devices , e.g. anti-static shielding coaxially arranged shields H01R24/38
• CPC Class Codes: H01R 13/66 Structural association with built-in electrical component coupling devices having concentrically or coaxially-arranged contacts H01R24/38
• CPC Class Codes: H01R 2201/26 for vehicles
• CPC Class Codes: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 5/00 Circuit arrangements for transfer of electric power between ac networks and dc networks H02J3/36 takes precedence
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H02J 7/02 for charging batteries from ac mains by converters
• CPC Class Codes: H04B 2203/5487 cables
• CPC Class Codes: H04B 3/54 Systems for transmission via power distribution lines
• CPC Class Codes: H04B 3/56 Circuits for coupling, blocking, or by-passing of signals
• 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
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles

Abstract

Provided a power receiving connector and a charging system that, during a communication such as inband communication wherein a communication signal is superposed in a control wire incorporated in a charging cable connecting a vehicle and a feed device, can reduce the mutual effect resulting from electromagnetic waves caused by the communication signal transmitted within the vehicle and a device in the vehicle. A power receiving connector to be placed as a vehicle-mounted feeding port is formed by integrating connection terminals internal wirings, a superposition separation element, and a capacitor with a housing as a replaceable unit.

Claims

1. A power receiving connector, which can be placed in a vehicle and can be connected with a feeder wire to be used for power feeding, with a ground wire, and with a control wire configured to transmit a control signal to be used for power feeding control, comprising:

a plurality of connection terminals to be connected with the feeder wire, the ground wire and the control wire;

a plurality of internal wirings to be connected with the feeder wire, the ground wire and the control wire via the connection terminals;

a superposition separation element, which is interposed in at least one of the internal wiring to be connected with the ground wire and the internal wiring to be connected with the control wire, configured to superpose and separate a communication signal, which is different from the control signal, for the internal wiring; and

a path section which passes the connection terminal to be connected with the ground wire, the superposition separation element, and the connection terminal to be connected with the control wire, and which bridges the internal wiring to be connected with the ground wire and the internal wiring to be connected with the control wire in order to form a communication path for the communication signal.

2. The power receiving connector according to claim 1, further comprising a housing configured to incorporate the connection terminals and the superposition separation element.

3. The power receiving connector according to claim 1, wherein the path section is a capacitor configured to pass the communication signal and interrupt the control signal.

4. The power receiving connector according to claim 1, further comprising a separation section which is interposed at a vehicle side of the ground wire and/or the control wire with respect to the connection position of the path section, and which separates the control signal and the communication signal by passing a signal of a band related to the control signal.

5. The power receiving connector according to claim 1,

wherein the superposition separation element has a primary coil to be connected with the internal wiring in which the superposition separation element is interposed, and a secondary coil to be coupled electromagnetically with the primary coil, and

wherein the secondary coil can be connected with a communication device configured to transmit and receive the communication signal via the control wire and the ground wire.

6. A charging system configured to be mounted to a vehicle which has an electric power storage device and can be connected with an outside feed device that feeds power to the electric power storage device through a charging cable that includes a feeder wire to be used for power feeding, a ground wire and a control wire configured to transmit a control signal to be used for power feeding control of the electric power storage device, comprising:

receiving connecter according to claim 5 which can be connected with a charging cable extending from the feed device; and

a communication device configured to transmit and receive a communication signal to and from the feed device via the power receiving connector, and

wherein the communication device is connected with a secondary coil of the superposition separation element the power receiving connecter comprises.

7. The charging system according to claim 6,

wherein the power receiving connector and the communication device are connected with each other by a twisted wire pair, and

wherein the communication device further comprises a choke coil to be connected with the twisted wire pair.

8. A communication system for connecting a feed device with a vehicle, which is provided with an electric power storage device to be fed from the feed device, by a charging cable, which includes a feeder wire to be used for power feeding, a ground wire and a control wire configured to transmit a control signal to be used for power feeding control of the electric power storage device, and for transmitting and receiving a communication signal, which is different from the control signal, using the control wire as a medium,

wherein the vehicle comprises a power receiving connecter according to claim 5 to be connected with a charging cable extending from the feed device, and a communication device configured to transmit and receive a communication signal to and from the feed device via the power receiving connector, and

wherein the communication device is connected with a secondary coil of the superposition separation element the power receiving connecter comprises.