JP2015092794A - Discharge system and discharge cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a discharge system and a discharge cable, capable of properly operating an electromagnetic lock device for connector locking.SOLUTION: A connector 31 of a discharge cable 30 includes a relay switch 38 and a switch control circuit 39. The relay switch 38 and the switch control circuit 39, after connectors 31, 32 at both ends are connected to a power receiving device 20 and a vehicle 40, activates electromagnetic lock devices 33, 34 by feeding power to the electromagnetic lock devices 33, 34 through lines L1, L3 by establishing communication between the power receiving device and the vehicle, prior to feeding of power to a DC/AC converter 21 of the power receiving device 20 from a DC power source of the vehicle 40.

Description

  The present invention relates to a discharge system and a discharge cable for discharging from a vehicle to a power receiving device via a cable.

  As disclosed in Patent Document 1 and the like, there is a technique for performing an interlock or transmitting / receiving various information by communication according to the CHAdeMO standard using a connector according to the CHAdeMO (registered trademark) specification as a connector for quick charging. .

JP 2013-62978 A

  By the way, when discharging from a vehicle to a power receiving device via a cable, there is a demand to provide a connector at both ends of the discharge cable and to provide an electromagnetic lock device that locks the connector to the connector so that the electromagnetic lock device is appropriately operated. .

  An object of the present invention is to provide a discharge system and a discharge cable that can appropriately operate an electromagnetic lock device that locks a connector.

  A discharge system for solving the above problems includes a vehicle equipped with a DC power source and a communication unit, a power receiving device having a DC / AC converter and a communication unit, a DC power source of the vehicle, and a DC / AC converter of the power receiving device. A discharge system comprising: a power feed line that connects; and a discharge cable having a signal line that connects the communication unit of the vehicle and the communication unit of the power receiving device, wherein the discharge cable is provided with connectors at both ends, Each of the connectors at both ends of the discharge cable has an electromagnetic lock device capable of locking the connector, and at least one of the connectors is connected to the power receiving device and the vehicle after the connectors at both ends of the discharge cable are connected to the power receiving device and the vehicle. Prior to feeding power from the DC power source to the DC / AC converter of the power receiving device, the discharge battery is activated by establishing communication between the power receiving device and the vehicle. And summarized in that a connector locking actuating means for actuating the electromagnetic locking device in power the electromagnetic lock device through electromagnetic lock unit power line provided in the table.

  According to this, the connectors at both ends of the discharge cable are connected to the power receiving device and the vehicle, and at the same time, the electromagnetic lock device is not operated to lock the connector, but the connectors at both ends of the discharge cable are connected to the power receiving device and the vehicle. Then, before power is supplied from the DC power source of the vehicle to the DC / AC converter of the power receiving device, the electromagnetic wave is passed through the electromagnetic lock device power line provided on the discharge cable at an optimal timing by establishing communication between the power receiving device and the vehicle. The connector can be locked by supplying power to the lock device and operating the electromagnetic lock device. In addition, since the electromagnetic lock device can be powered through the electromagnetic lock device power line provided on the discharge cable and the electromagnetic lock device can be operated to lock the connector, there is no need to prepare a dedicated line separately from the discharge cable. The locking device can be activated.

  In the above discharge system, the connector lock actuating means is configured such that a discharge start / stop signal from the power receiving device side to the vehicle side is active and a discharge permission prohibition signal from the vehicle side to the power receiving device side is active. The electromagnetic lock device may be supplied with power through the electromagnetic lock device power line.

  In the above discharge system, the connector lock actuating means has an inactive discharge start / stop signal from the power receiving device side to the vehicle side and an inactive discharge permission prohibition signal from the vehicle side to the power receiving device side. Sometimes, the power supply to the electromagnetic lock device through the electromagnetic lock device power line may be cut off.

In the above discharge system, the electromagnetic lock device power supply line may connect the control power supply of the vehicle and the power receiving device via the connector.
A discharge cable for solving the above problems is a discharge cable having a power supply line connecting a DC power source of a vehicle and a DC / AC converter of a power receiving device, and a signal line connecting the communication unit of the vehicle and the communication unit of the power receiving device. In addition, connectors are provided at both ends, each of the connectors at both ends has an electromagnetic lock device that can be locked to the connector, and at least one of the connectors has the connector at both ends connected to the power receiving device and the vehicle Later, prior to power feeding from the DC power source of the vehicle to the DC / AC converter of the power receiving device, power is supplied to the electromagnetic locking device through an electromagnetic locking device power line when communication is established between the power receiving device and the vehicle. The gist of the invention is to have connector lock operating means for operating the electromagnetic lock device.

  According to this, the connectors at both ends of the discharge cable are connected to the power receiving device and the vehicle, and at the same time, the electromagnetic lock device is not operated to lock the connector, but the connectors at both ends of the discharge cable are connected to the power receiving device and the vehicle. After the power supply from the DC power source of the vehicle to the DC / AC converter of the power receiving device, power is supplied to the electromagnetic locking device through the electromagnetic locking device power line at an optimal timing by establishing communication between the power receiving device and the vehicle. The connector can be locked by operating the electromagnetic locking device. In addition, since the electromagnetic lock device can be operated by supplying power to the electromagnetic lock device through the electromagnetic lock device power line and the connector can be locked, the electromagnetic lock device can be operated without preparing a dedicated line separately from the discharge cable. Can do.

  In the discharge cable, the connector lock actuating means is configured such that when a discharge start / stop signal from the power receiving device side to the vehicle side is active and a discharge permission prohibition signal from the vehicle side to the power receiving device side is active. The electromagnetic lock device may be supplied with power through the electromagnetic lock device power line.

  In the discharge cable, the connector lock actuating means has an inactive discharge start / stop signal from the power receiving device side to the vehicle side and an inactive discharge permission prohibition signal from the vehicle side to the power receiving device side. Sometimes, the power supply to the electromagnetic lock device through the electromagnetic lock device power line may be cut off.

  In the discharge cable, the electromagnetic lock device power line may connect the control power source of the vehicle and the power receiving device via the connector.

  According to the present invention, the electromagnetic lock device for locking the connector can be appropriately operated.

The electrical block diagram of the discharge system in embodiment. The electrical block diagram centering on a discharge cable. The time chart for demonstrating an effect | action.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings.
As shown in FIG. 1, the discharge system 10 is an external power receiving system that extracts electricity from a vehicle at the time of an earthquake disaster, etc., and a DC power source of the vehicle 40 via a discharge cable 30 using a portable power receiving device 20. The direct current 41 is transmitted to the DC / AC converter (inverter) 21 of the power receiving device 20, converted into alternating current by the DC / AC converter 21, and supplied to the load 50. As the vehicle 40, an electric vehicle, a plug-in hybrid vehicle, a fuel cell vehicle, or the like is used. As the DC power source 41, a secondary battery, a capacitor, or the like is used. In addition, since the discharge cable 30 becomes thicker and thicker, the discharge cable 30 can be removed.

The discharge system 10 includes a portable power receiving device 20, a discharge cable 30, and a vehicle 40.
The vehicle 40 is equipped with a DC power source 41, an auxiliary battery 42 as a control power source, and a communication unit 43 as a communication unit. The power receiving device 20 includes a DC / AC converter 21, a communication unit 22 as a communication unit, and a control device 23.

  The discharge cable 30 is provided with connectors 31 and 32 at both ends of the main body 30a (see FIG. 2) so as to be removable. A connector 31 on the power receiving device 20 side is connected to the power receiving device 20. A connector 32 on the vehicle 40 side is connected to the vehicle 40.

  Each connector 31 and 32 of the discharge cable 30 conforms to the CHAdeMO standard and has terminals with terminal numbers 1 to 10. As shown in FIG. 3, terminal number 1 is a ground terminal, and terminal number 2 is a “discharge start / stop 1” terminal. Terminal number 3 is a “power-receiving-side control power supply” terminal, and terminal number 4 is a “discharging permission prohibited” terminal. Terminal number 5 is a “feed (−)” terminal, and terminal number 6 is a “feed (+)” terminal. Terminal number 7 is a “connector connection confirmation” terminal, and terminal number 8 is a “CAN-H” terminal. Terminal number 9 is a “CAN-L” terminal. Terminal number 10 is a “discharge start / stop 2” terminal. Therefore, as shown in FIG. 1, the discharge cable 30 has lines L1 to L10 corresponding to the terminals with terminal numbers 1 to 10, and connects the DC power supply 41 of the vehicle and the DC / AC converter 21 of the power receiving device. Electric wires L5 and L6, and signal lines L2, L4, L7, L8, L9, and L10 that connect the communication unit 43 of the vehicle and the communication unit 22 of the power receiving apparatus are included.

  The DC power supply 41 of the vehicle 40 is connected to the power supply lines L5 and L6 of the discharge cable 30. The auxiliary battery 42 of the vehicle 40 is connected to the ground line L1 and the power receiving side control power line L3 of the discharge cable 30. The communication unit 43 of the vehicle 40 performs communication according to the CHAdeMO standard. The communication unit 43 is connected to the signal lines L2, L4, L7, L8, L9, and L10 of the discharge cable 30.

  The DC / AC converter (inverter) 21 of the power receiving device 20 is connected to the feeder lines L5 and L6 of the discharge cable 30. The DC / AC converter 21 is configured by a switching element or the like, converts DC power supplied from the DC power supply 41 on the vehicle side through the power supply lines L5 and L6 into AC and outputs the AC power to the load 50.

  The communication unit 22 of the power receiving apparatus 20 performs communication according to the CHAdeMO standard. The communication unit 22 is connected to the signal lines L2, L4, L7, L8, L9, and L10 of the discharge cable 30. Communication can be performed between the communication unit 43 of the vehicle 40 and the communication unit 22 of the power receiving device 20 by the CAN communication method.

  As shown in FIG. 2, the control device 23 of the power receiving device 20 has a power input circuit 24, and the power input circuit 24 is connected to the ground line L <b> 1 and the power receiving side control power line L <b> 3 of the discharge cable 30. The power supply input circuit 24 of the control device 23 is supplied with power from the auxiliary battery 42 of the vehicle via the ground line L1 of the discharge cable 30 and the power receiving side control power supply line L3, and the control device 23 is operated by this power supply. The control device 23 controls the DC / AC converter (inverter) 21. Further, the control device 23 can communicate with the vehicle 40 side via the communication unit 22. The communication unit 22 is connected to the ground line L1 and the power receiving side control power line L3 of the discharge cable 30, and is powered from the auxiliary battery 42 of the vehicle via the ground line L1 and the power receiving side control power line L3. To do.

  The connector 31 has an electromagnetic locking device 33 that can be locked. The connector 32 has an electromagnetic lock device 34 that can be locked. As described above, the connectors (31, 32) at both ends of the discharge cable 30 have the electromagnetic locking devices (33, 34) that can lock the connectors, respectively. At this time, the electromagnetic locking devices 33 and 34 require a power source, but the terminals (pins) dedicated to the power source are not provided in the connectors 31 and 32.

  As shown in FIG. 2, the electromagnetic lock devices 33 and 34 have an electromagnetic latch mechanism and include an electromagnetic solenoid 37 a and a display light emitting diode 37 b. When the electromagnetic solenoid 37a is energized, a magnetic force is generated, and an engagement claw (not shown) is moved and engaged with the engagement recess to be locked. Further, when the electromagnetic solenoid 37a is de-energized, the lock is released.

  The main body 30a of the discharge cable 30 has a connector lock ground line L11 and a connector lock plus potential line L12, and the connector is supplied by power supply from the auxiliary battery 42 of the vehicle via the connector lock ground line L11 and the connector lock plus potential line L12. It can be locked.

  Specifically, in the connector 31, the connector lock plus potential line L <b> 12 is connected to the power receiving side control power line L <b> 3 corresponding to the terminal with the terminal number 3 through the conducting wire 35. The connector lock ground wire L11 is connected to the ground wire L1 corresponding to the terminal of terminal number 1 through the conductor 36. One end of the electromagnetic solenoid 37a of the electromagnetic lock devices 33 and 34 is connected to the connector lock ground line L11. The other ends of the electromagnetic solenoids 37a of the electromagnetic lock devices 33 and 34 are connected to the connector lock plus potential line L12. The connector 31 has a relay switch 38, and the relay switch 38 is provided on the conducting wire 36.

  When the relay switch 38 is closed, when the electromagnetic solenoid 37a is energized by the power of the auxiliary battery 42 on the vehicle side through the lines L1 and L3 using the lines L1 and L3 as the electromagnetic lock device power supply lines, the electromagnetic lock devices 33 and 34 are Operate.

  A light emitting diode 37b and a resistor 37c are connected in series. One end of the series circuit is connected to the connector lock ground line L11 and the other end is connected to the connector lock plus potential line L12. In the locked state in which the relay switch 38 is closed, the light emitting diode 37b can perform a light emission operation to notify the locked state.

  The connector 31 has a switch control circuit 39. The switch control circuit 39 is connected to the signal line L2 corresponding to the terminal of terminal number 2 and the signal line L4 corresponding to the terminal of terminal number 4. The switch control circuit 39 monitors the signal level of the signal line L2 corresponding to the terminal with the terminal number 2 and the signal level of the signal line L4 corresponding to the terminal with the terminal number 4. The switch control circuit 39 is connected to the relay switch 38 and can open and close the relay switch 38. Then, the switch control circuit 39 opens and closes the relay switch 38 based on the signal level of the signal line L2 corresponding to the terminal of the terminal number 2 and the signal level of the signal line L4 corresponding to the terminal of the terminal number 4.

  The relay switch 38 and the switch control circuit 39 constitute connector lock operating means. After the connectors 31 and 32 at both ends of the discharge cable are connected to the power receiving device 20 and the vehicle 40, the electromagnetic lock devices 33 and 34 can be operated by the relay switch 38 and the switch control circuit 39. That is, the connector is locked by establishing communication between the power receiving device 20 and the vehicle 40 prior to feeding power from the DC power source 41 of the vehicle 40 to the DC / AC converter 21 of the power receiving device 20. More specifically, the electromagnetic lock device 33, through the lines (electromagnetic lock device power supply lines) L1, L3 provided in the discharge cable 30 according to the signal levels of the signal lines L2, L4 prior to the power supply to the DC / AC converter 21. Power is supplied to 34 to operate the electromagnetic locking devices 33 and 34. Here, the lines (electromagnetic lock device power supply lines) L1 and L3 connect the auxiliary battery (control power supply) 42 of the vehicle to the power input circuit 24 and the communication unit 22 of the control device 23 of the power receiving device 20.

Next, the operation will be described.
FIG. 3 shows an operation state from when the connectors 31 and 32 at both ends of the discharge cable 30 are connected to the vehicle 40 and the power receiving device 20 until discharge is started, and then the discharge is terminated and the connector lock is released. ing.

  3 shows the levels of terminal numbers 1 to 10 in the connectors 31 and 32, the open / close state of the relay switch 38, and the connector lock state. Specifically, the horizontal axis in FIG. 3 takes time, and the signal level and the like change from step 1 to step 9 after connecting the connector.

  In step 1, the “power-receiving-side control power source” terminal having the terminal number 3 becomes a predetermined positive potential as the connector is connected. As a result, the control device 23 (power input circuit 24) and the communication unit 22 of the power receiving device 20 are powered and operated. At this time, if the relay switch 38 is not provided, the electromagnetic locking devices 33 and 34 are operated and the connector is locked simultaneously with the connector connection (in step 1). In this embodiment, however, the relay switch 38 is turned off at this time. Yes (open).

In step 2, the “discharge start / stop 1” terminal of terminal number 2 is set to H level by the communication unit 22 of the power receiving device 20.
In step 3, CAN communication is performed between the communication unit 22 of the power receiving device 20 and the communication unit 43 of the vehicle 40 using the “CAN-H” terminal with the terminal number 8 and the “CAN-L” terminal with the terminal number 9. Done.

  In step 4, the “discharge permission prohibition” terminal of terminal number 4 is set to H level by the communication unit 43 of the vehicle 40. As a result, the switch control circuit 39 closes the relay switch 38. As a result, power is supplied to the electromagnetic lock devices 33 and 34 through the lines (electromagnetic lock device power supply lines) L1 and L3, and the electromagnetic lock devices 33 and 34 are operated to lock the connectors.

  That is, by the relay switch 38 and the switch control circuit 39 constituting the connector lock operating means, the discharge start / stop signal (terminal signal of terminal number 2) from the power receiving device 20 side to the vehicle 40 side is active, and the vehicle 40 side When the discharge permission prohibition signal (terminal signal of terminal number 4) from the power source to the power receiving device 20 side becomes active, the connector is locked. That is, power is supplied to the electromagnetic lock devices 33 and 34 through the wires (electromagnetic lock device power supply lines) L1 and L3, and the electromagnetic lock devices 33 and 34 are operated to lock the connectors.

In step 5, the “connector connection confirmation” terminal having the terminal number 7 is set to the H level by the communication unit 22 of the power receiving device 20.
In step 6, the “discharge start / stop 2” terminal having the terminal number 10 is set to the H level by the communication unit 22 of the power receiving device 20.

  In step 7, discharge using the “feed (−)” terminal with terminal number 5 and the “feed (+)” terminal with terminal number 6 is started. As a result, the DC / AC converter (inverter) 21 of the portable power receiving device 20 receives DC power from the DC power supply 41 on the vehicle side, converts it into AC, and outputs it to the load 50.

  In step 8, the discharge using the “feed (−)” terminal with terminal number 5 and the “feed (+)” terminal with terminal number 6 is terminated. Further, the “discharging permission prohibition” terminal of terminal number 4 is set to L level by the communication unit 43 of the vehicle 40.

  In step 9, the “discharge start / stop 1” terminal with terminal number 2 is set to L level and the “discharge start / stop 2” terminal with terminal number 10 is set to L level by the communication unit 22 of the power receiving device 20. When the signal at the terminal number 4 becomes L and the signal at the terminal number 2 becomes L, the switch control circuit 39 opens the relay switch 38. As a result, the power supply to the electromagnetic lock devices 33 and 34 through the wires (electromagnetic lock device power supply lines) L1 and L3 to the electromagnetic lock devices 33 and 34 is cut off, and the connector lock is released. In other words, the relay switch 38 and the switch control circuit 39 constituting the connector lock operating means cause the discharge start / stop signal from the power receiving apparatus 20 side to the vehicle 40 side (the signal at the terminal of terminal number 2) to be inactive, and the vehicle 40 When the discharge permission prohibition signal (terminal signal of terminal number 4) from the power supply side to the power receiving device 20 side becomes inactive, the connector lock is released. That is, the power supply to the electromagnetic lock devices 33 and 34 through the wires (electromagnetic lock device power supply lines) L1 and L3 is cut off, so that the electromagnetic lock devices 33 and 34 are deactivated and the connector lock is released.

  Thereafter, CAN communication is performed between the communication unit 22 of the power receiving apparatus 20 and the communication unit 43 of the vehicle 40 by using the “CAN-H” terminal having the terminal number 8 and the “CAN-L” terminal having the terminal number 9. .

Hereinafter, the entire system configuration will be mentioned.
The portable power receiving device 20 can be used as an emergency power source during an earthquake. Here, since the vehicle cannot always be parked near the building, the cable connecting the vehicle and the power receiving device becomes longer, which increases the weight. Therefore, in the case of the portable type, both ends of the cable are made CHAdeMO connectors so that they can be removed from the vehicle and the power receiving apparatus and taken out.

  Here, the cable with the CHAdeMO compatible connector has only 10 pins, and when both ends of the cable are made CHAdeMO connectors and the wiring of the electromagnetic lock device is taken out to the outside, as shown by the phantom line in FIG. In detail, another cable 100 must be branched and taken out to the outside (from a part of the connector 31) and connected to the power receiving device 20 using another connector 101, for example. This is a problem in the sense of corresponding to convenience, safety, and protection standards.

  Also, as shown in FIG. 2, when the power supply lines (L1, L3) supplied from the vehicle and the connector locking lines L11, L12 are to be connected inside the connector, if there is no relay switch 38, the electromagnetic lock is simultaneously established with the connector connection. Turns on, contrary to the CHAdeMO control timing chart.

  In this embodiment, the power supply lines (L1, L3) supplied from the vehicle and the connector locking lines L11, L12 are connected inside the connector via the relay switch 38, and the relay control 38 is controlled by the switch control circuit 39. . Thereby, the cable (connector) for exclusive use of the electromagnetic locking devices 33 and 34 can be made unnecessary. Further, it is possible to remove both ends of the cable without changing the pin structure of a normal CHAdeMO connector cable while keeping the CHAdeMO control timing chart.

  In particular, the relay switch 38 is actuated only when both the signal lines L2 and L4 are in the active state. Further, the relay switch 38 is operated so as to be turned off only when both of the signal lines L2 and L4 are in an inactive state. Thereby, the order of the control timing chart of CHAdeMO is maintained. Therefore, it is not necessary to provide another cable 100 or another connector 101 branched from the middle of the cable 30. Therefore, the convenience is improved, and specifically, it is not necessary to separately wind up the separate cable 100 or the separate connector 101 when the cable is stored. In addition, safety can be improved. Specifically, the user does not forget to unplug the connector of another cable 100 when removing from the power receiving apparatus. Furthermore, it is not necessary to install an expensive separate connector that meets the protection standard, and the cost can be reduced.

According to the above embodiment, the following effects can be obtained.
(1) The connector 31 includes a relay switch 38 and a switch control circuit 39 as connector lock operating means. Then, after the connectors 31 and 32 at both ends of the discharge cable are connected to the power receiving device 20 and the vehicle 40, the power receiving device 20 and the power receiving device 20 are connected to the DC / AC converter 21 of the power receiving device 20 from the DC power supply 41 of the vehicle 40. When the communication with the vehicle 40 is established, the electromagnetic lock devices 33 and 34 are operated by supplying power to the electromagnetic lock devices 33 and 34 through the lines L1 and L3 as the electromagnetic lock device power supply lines provided in the discharge cable 30.

  Therefore, the connectors 31 and 32 at both ends of the discharge cable are connected to the power receiving device 20 and the vehicle 40 and at the same time, the electromagnetic lock devices 33 and 34 are not operated to lock the connectors, but the connectors can be locked at an optimal timing. it can. That is, after the connectors 31 and 32 at both ends of the discharge cable are connected to the power receiving device 20 and the vehicle 40, the power receiving device 20 and the power receiving device 20 are connected to the DC / AC converter 21 of the power receiving device 20 from the DC power supply 41 of the vehicle 40. When communication with the vehicle 40 is established, the electromagnetic locking devices 33 and 34 are operated to lock the connectors. That is, the electromagnetic lock devices 33 and 34 can be operated by supplying power to the electromagnetic lock devices 33 and 34 through the wires (electromagnetic lock device power supply lines) L1 and L3 provided on the discharge cable 30. In addition, since the electromagnetic lock devices 33 and 34 can be powered through the wires (electromagnetic lock device power supply lines) L1 and L3 provided on the discharge cable 30 to operate the electromagnetic lock devices 33 and 34, the connector can be locked. The electromagnetic locking devices 33 and 34 can be operated without preparing a dedicated line separately from the cable 30. In this way, the electromagnetic locking devices 33 and 34 that lock the connector can be appropriately operated.

  (2) When the discharge start / stop signal from the power receiving device 20 side to the vehicle 40 side is active and the discharge permission prohibition signal from the vehicle 40 side to the power receiving device 20 side is activated, Power is supplied to the electromagnetic locking devices 33 and 34 through wires (electromagnetic locking device power supply lines) L1 and L3. Therefore, it can be in accordance with the CHAdeMO standard.

  (3) When the discharge start / stop signal from the power receiving device 20 side to the vehicle 40 side becomes inactive and the discharge permission prohibition signal from the vehicle 40 side to the power receiving device 20 side becomes inactive In addition, power supply to the electromagnetic lock devices 33 and 34 through the wires (electromagnetic lock device power supply lines) L1 and L3 is cut off. Therefore, it can be in accordance with the CHAdeMO standard.

  (4) The lines L1 and L3 as the electromagnetic lock device power supply lines connect the auxiliary battery (control power supply) 42 of the vehicle 40 and the power receiving device 20 via the connectors 31 and 32, respectively. Therefore, it can be in accordance with the CHAdeMO standard.

The embodiment is not limited to the above, and may be embodied as follows, for example.
Although the relay switch 38 and the switch control circuit 39 are provided in the connector 31 on the power receiving apparatus side, the relay switch 38 and the switch control circuit 39 may be provided on the connector 32 on the vehicle side. Furthermore, the relay switch 38 and the switch control circuit 39 can be provided in both connectors 31 and 32, respectively.

  The communication method between the vehicle and the power receiving apparatus may be an In-Band method or the like other than the CAN communication method.

  DESCRIPTION OF SYMBOLS 10 ... Discharge system, 20 ... Power receiving apparatus, 21 ... DC / AC converter, 22 ... Communication unit, 30 ... Discharge cable, 31, 32 ... Connector, 33, 34 ... Electromagnetic locking device, 38 ... Relay switch, 39 ... Switch Control circuit, 40 ... vehicle, 43 ... communication unit.

Claims (8)

A vehicle equipped with a DC power source and a communication unit; a power receiving device including a DC / AC converter and a communication unit; a power supply line connecting the DC power source of the vehicle and the DC / AC converter of the power receiving device; A discharge system comprising a communication unit and a discharge cable having a signal line connecting the communication unit of the power receiving device,
The discharge cable is provided with connectors at both ends,
Each of the connectors at both ends of the discharge cable has an electromagnetic locking device capable of locking the connector,
At least one connector is connected to the power receiving device prior to power feeding from a DC power source of the vehicle to a DC / AC converter of the power receiving device after connectors at both ends of the discharge cable are connected to the power receiving device and the vehicle. A discharge system comprising connector lock operating means for operating the electromagnetic lock device by supplying power to the electromagnetic lock device through an electromagnetic lock device power line provided in a discharge cable upon establishment of communication with the vehicle. .   The connector lock actuating means is configured such that when a discharge start / stop signal from the power receiving device side to the vehicle side is active and a discharge permission prohibiting signal from the vehicle side to the power receiving device side is active, the electromagnetic lock device The discharge system according to claim 1, wherein power is supplied to the electromagnetic lock device through a power line.   The connector lock actuating means is configured such that when the discharge start / stop signal from the power receiving device side to the vehicle side is inactive and the discharge permission prohibition signal from the vehicle side to the power receiving device side is inactive, The discharge system according to claim 1 or 2, wherein power supply to the electromagnetic lock device through a lock device power line is cut off.   The discharge system according to any one of claims 1 to 3, wherein the electromagnetic lock device power supply line connects the control power supply of the vehicle and the power receiving device via the connector. A discharge cable having a power supply line connecting a DC power source of a vehicle and a DC / AC converter of a power receiving device, and a signal line connecting the communication unit of the vehicle and the communication unit of the power receiving device,
Connectors are provided at both ends,
Each of the connectors at both ends has an electromagnetic locking device capable of locking the connector,
At least one of the connectors includes the power receiving device and the vehicle prior to power feeding from a DC power source of the vehicle to a DC / AC converter of the power receiving device after the connectors at both ends are connected to the power receiving device and the vehicle. A discharge cable comprising: a connector lock operating means for operating the electromagnetic lock device by supplying power to the electromagnetic lock device through an electromagnetic lock device power line when communication is established between the two.   The connector lock actuating means is configured such that when a discharge start / stop signal from the power receiving device side to the vehicle side is active and a discharge permission prohibiting signal from the vehicle side to the power receiving device side is active, the electromagnetic lock device The discharge cable according to claim 5, wherein power is supplied to the electromagnetic lock device through a power line.   The connector lock actuating means is configured such that when the discharge start / stop signal from the power receiving device side to the vehicle side is inactive and the discharge permission prohibition signal from the vehicle side to the power receiving device side is inactive, The discharge cable according to claim 5 or 6, wherein power supply to the electromagnetic lock device through a lock device power line is interrupted.   The discharge cable according to any one of claims 5 to 7, wherein the electromagnetic lock device power line connects the control power source of the vehicle and the power receiving device via the connector.