WO2017138508A1 - 接触充電システム、給電装置、受電装置及び接触充電方法 - Google Patents
接触充電システム、給電装置、受電装置及び接触充電方法 Download PDFInfo
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- WO2017138508A1 WO2017138508A1 PCT/JP2017/004325 JP2017004325W WO2017138508A1 WO 2017138508 A1 WO2017138508 A1 WO 2017138508A1 JP 2017004325 W JP2017004325 W JP 2017004325W WO 2017138508 A1 WO2017138508 A1 WO 2017138508A1
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- power
- terminal
- power receiving
- receiving terminal
- contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
- B60L5/36—Current collectors for power supply lines of electrically-propelled vehicles with means for collecting current simultaneously from more than one conductor, e.g. from more than one phase
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
- B60L5/40—Current collectors for power supply lines of electrically-propelled vehicles for collecting current from lines in slotted conduits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
- B60L5/42—Current collectors for power supply lines of electrically-propelled vehicles for collecting current from individual contact pieces connected to the power supply line
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/18—Cables specially adapted for charging electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/32—Constructional details of charging stations by charging in short intervals along the itinerary, e.g. during short stops
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Definitions
- the present invention relates to a contact charging system and method for charging a battery provided on the power receiving device side by using a power feeding device.
- Japanese Patent Application Laid-Open Nos. 7-283852 and 2006-049123 both show a charger for charging a battery of a mobile phone.
- the power feeding element and / or the power receiving element can be rotated so that contact points between the power feeding element and the power receiving element are not concentrated on one point. According to this configuration, the power feeding element and / or the power receiving element are not easily deteriorated due to wear.
- Japanese Unexamined Patent Publication Nos. 2012-034543 and 2011-135739 show structures and systems for charging batteries of electric vehicles and plug-in hybrid vehicles (referred to as electric vehicles). As shown in these documents, in general, when a battery for driving an electric vehicle is charged, power is supplied after the power feeding terminal and the power receiving terminal are brought into contact with each other.
- Japanese Unexamined Patent Publication No. 2013-233037 shows a system for charging a battery for driving an electric vehicle that travels.
- the battery is charged by extending an arm having a power receiving terminal at the tip from a traveling electric vehicle and bringing it into contact with an overhead line provided along the traveling path.
- the power receiving element is pivotally supported in a rotatable state, and rotates around the shaft by contacting the overhead wire while the vehicle is traveling.
- the power feeding element and / or the power receiving element do not rotate when the battery is charged.
- Such a configuration has no problem when charging the battery of the mobile phone.
- there is a problem when charging a battery for driving an electric vehicle A battery for driving an electric vehicle has a larger amount of electric power stored than a battery for a mobile phone. For this reason, when charging is performed with high power after the power feeding element and the power receiving element are brought into contact with each other at the time of charging, the contact portion between the power feeding element and the power receiving element may be heated and damaged.
- JP 2012-034543 A and JP 2011-135739 A it takes a long time to charge a large capacity battery. If the charging power is increased, the charging time can be shortened. However, a large amount of heat is generated at the contact point (point) between the power feeding terminal and the power receiving terminal, and the terminal may be damaged.
- the power receiving terminal moves in the vehicle traveling direction together with the electric vehicle. At this time, when the power receiving element contacts the overhead wire, a frictional force is generated between them. The power receiving element rotates by this frictional force. For this reason, even if charging power is large power, a feed terminal and a receiving terminal are not damaged. However, this invention does not assume contact charging when the vehicle is stopped.
- the present invention has been made in consideration of such problems, and a contact charging system, a power feeding device, a power receiving device, and a contact charging method for preventing damage to a power feeding terminal and a power receiving terminal even when the charging power is large.
- the purpose is to provide.
- the present invention is a contact charging system that charges the power storage unit of the power receiving device by supplying power from the power feeding terminal of the power feeding device to the power receiving terminal of the power receiving device, and both the power feeding terminal and the power receiving terminal are rotatable. And a rotation power mechanism that rotates either the power supply terminal or the power receiving terminal, and the charge terminal and the power receiving terminal are pressed against each other when the power storage unit is charged. By rotating a power mechanism, power is transmitted from one of the power feeding terminal and the power receiving terminal to the other, and the power feeding terminal and the power receiving terminal are rotated together. It is characterized by supplying electric power.
- either the power feeding terminal or the power receiving terminal is rotated by the rotational power mechanism.
- the other terminals are also rotated by the frictional force.
- each of the power feeding terminal and the power receiving terminal includes a pair of terminals, and the pair of terminals of either the power feeding terminal and the power receiving terminal are on the same axis
- the rotational power mechanism may rotate the pair of terminals, either the power feeding terminal or the power receiving terminal, about the axis. Since the pair of terminals can rotate around the same axis as described above, the power feeding terminal or the power receiving terminal can be rotated with a simple configuration.
- the contact charging system includes a brush that contacts either the pair of terminals of the power feeding terminal or the power receiving terminal and is connected to a power line of the power feeding terminal or the power receiving terminal. You may do it. By providing the brush, even when the power feeding terminal or the power receiving terminal is rotating, the power feeding terminal or the power receiving terminal can be reliably energized.
- the contact charging system may further include a controller that controls a start timing of the rotational power mechanism and a voltage application timing to the power supply terminal.
- the controller may apply a voltage to the power supply terminal after a predetermined time has elapsed since the rotation power mechanism was started. If the voltage is applied after the power feeding terminal and the power receiving terminal start to rotate, the power feeding terminal and the power receiving terminal can be reliably rotated at the start of charging. With such a configuration, contact portions between the power feeding terminal and the power receiving terminal do not concentrate on a part, so that damage or welding between the power feeding terminal and the power receiving terminal can be prevented even during charging with a large supply power.
- the contact charging system further includes a detection device that detects that the power supply terminal and the power reception terminal are in contact with each other, and the controller uses the detection device to connect the power supply terminal and the power reception terminal.
- the rotational power mechanism may be driven to apply a voltage to the power supply terminal after a predetermined time has elapsed.
- the power receiving device is included in an electric vehicle, the power receiving terminal is provided inside the electric vehicle, and the power feeding terminal and the power receiving terminal are in contact with each other,
- the power receiving terminal and the power feeding terminal may be surrounded by a cover.
- the present invention is a power supply device including a power supply terminal that supplies power to an external power receiving device, wherein the power supply terminal is rotatable about a rotation axis, and further, the power supply terminal is rotated with the rotation. And a rotational power mechanism that rotates about an axis.
- the rotational power mechanism rotates the power supply terminal.
- the power feeding terminal is rotated while the power feeding terminal and the power receiving terminal are in contact with each other, the power receiving terminal in contact with the frictional force is also rotated.
- contact portions between the power feeding terminal and the power receiving terminal do not concentrate on a part, so that damage or welding between the power feeding terminal and the power receiving terminal can be prevented even during charging with a large supply power.
- the present invention is a power receiving device including a power receiving terminal for inputting power from an external power feeding device and a power storage unit for storing power, the power receiving terminal being rotatable about a rotation axis, and further, the power receiving terminal is And a rotational power mechanism that rotates about the rotational axis.
- the rotational power mechanism rotates the power receiving terminal.
- the power receiving terminal is rotated while the power feeding terminal and the power receiving terminal are in contact with each other, the power feeding terminal in contact with the frictional force is also rotated.
- contact portions between the power feeding terminal and the power receiving terminal do not concentrate on a part, so that damage or welding between the power feeding terminal and the power receiving terminal can be prevented even during charging with a large supply power.
- the present invention is a contact charging method for charging a power storage unit of a power receiving device by bringing the power feeding terminal of the power feeding device into contact with the power receiving terminal of the power receiving device and supplying power from the power feeding terminal to the power receiving terminal, Supplying power from the power supply terminal to the power receiving terminal by bringing either the power supply terminal or the power receiving terminal into contact with the power feeding terminal and the power receiving terminal while rotating one of the power receiving terminal and the power receiving terminal as a center.
- either the power feeding terminal or the power receiving terminal is rotated.
- one of the terminals is rotated while the power feeding terminal and the power receiving terminal are in contact with each other, the other terminals that are in contact with each other due to frictional force are also rotated.
- contact portions between the power feeding terminal and the power receiving terminal do not concentrate on a part, so that damage or welding between the power feeding terminal and the power receiving terminal can be prevented even during charging with a large supply power.
- the contact charging method when the proximity or contact between the power supply terminal and the power receiving terminal is detected, either the power supply terminal or the power receiving terminal is rotated, and then the power supply terminal.
- the power supply to the power receiving terminal may be started.
- the feeding terminal and the receiving terminal can be reliably rotated at the start of charging.
- contact portions between the power feeding terminal and the power receiving terminal do not concentrate on a part, so that damage or welding between the power feeding terminal and the power receiving terminal can be prevented even during charging with a large supply power.
- the contact portion between the power supply terminal and the power receiving terminal is not concentrated in part, it is possible to prevent the power supply terminal and the power receiving terminal from being welded even during charging with a large supply power.
- FIG. 1A is a plan view showing a contact charging system for an electric vehicle to which the present invention is applied
- FIG. 1B is a side view
- FIG. 1C is a front view
- FIG. 2 is a schematic diagram illustrating an internal configuration of the power feeding device according to the first embodiment.
- FIG. 3 is a schematic diagram illustrating an internal configuration of the power receiving head according to the first embodiment.
- FIG. 4 is a block diagram showing the configuration of the contact charging system according to the first embodiment.
- FIG. 5 is a flowchart showing the operation of the contact charging system according to the first and second embodiments.
- FIG. 6 is a schematic diagram illustrating an internal configuration of the power feeding device according to the second embodiment.
- FIG. 7 is a schematic diagram showing the internal configuration of the power receiving head according to the second embodiment.
- FIG. 1A is a plan view showing a contact charging system for an electric vehicle to which the present invention is applied
- FIG. 1B is a side view
- FIG. 1C is a front view.
- FIG. 8 is a block diagram showing the configuration of the contact charging system according to the second embodiment.
- FIG. 9 is a block diagram showing the configuration of the contact charging system according to the third embodiment.
- FIG. 10 is a flowchart showing the operation of the contact charging system according to the third embodiment.
- FIG. 11 is a schematic diagram illustrating an internal configuration of the power feeding device according to the fourth embodiment.
- FIG. 12 is a plan view showing a contact charging system according to the fifth embodiment.
- FIG. 13 is a front view showing a contact charging system according to the sixth embodiment.
- FIG. 14 is a schematic diagram illustrating an internal configuration of the power feeding head according to the sixth embodiment.
- FIG. 15 is a schematic diagram illustrating an internal configuration of the power receiving device according to the sixth embodiment.
- the configuration of the contact charging system 10 will be described with reference to FIGS. 1A, 1B, and 1C.
- the contact charging system 10 includes an electric vehicle 12 as a power receiving device and a power supply device 30 installed outside the electric vehicle 12.
- the electric vehicle 12 includes a vehicle propulsion motor 106 (see FIG. 4) such as a drive motor and a high-voltage battery 102 (see FIG. 4) for supplying electric power to the motor 106.
- the electric vehicle 12 is an electric vehicle, a hybrid vehicle equipped with an internal combustion engine, a fuel cell vehicle equipped with a fuel cell, or the like.
- the electric vehicle 12 is provided with a slide crank mechanism 14 having a power receiving head 28.
- the slide crank mechanism 14 includes a first spring damper 16, an actuator 20, a second spring damper 22, and an arm 24.
- the first spring damper 16 is disposed along the front-rear direction P of the electric vehicle 12, and one end is fixed to the electric vehicle 12.
- the first spring damper 16 has a slide rail 18.
- An actuator 20 is provided on the slide rail 18. The actuator 20 moves to the front P1 or the rear P2 along the slide rail 18 in accordance with a drive signal transmitted from a control device (not shown).
- One end of the second spring damper 22 is attached to the actuator 20 in a rotatable state.
- the other end of the second spring damper 22 is attached to a substantially intermediate portion of the arm 24 in a rotatable state.
- One end of the arm 24 is supported by the support shaft 26 so as to be rotatable with respect to the electric vehicle 12.
- the other end of the arm 24 includes a power receiving head 28. Note that a cable including the power receiving head 28 may be provided instead of the arm 24.
- the slide crank mechanism 14 operates as follows.
- the actuator 20 When the actuator 20 is positioned on the rear side of the slide rail 18, the arm 24 is accommodated in the electric vehicle 12.
- the actuator 20 moves forward P1 from this state, the arm 24 is pushed to the side by the second spring damper 22. Then, the power receiving head 28 moves in the Q1 direction around the support shaft 26.
- the second spring damper 22 When the power feeding terminal 36 (see FIG. 2) and the power receiving terminal 84 (see FIG. 3) come into contact, the second spring damper 22 generates a pressing force between the power feeding terminal 36 and the power receiving terminal 84.
- the actuator 20 moves rearward P2
- the arm 24 is pulled toward the electric vehicle 12 by the second spring damper 22.
- the power receiving head 28 moves in the Q2 direction about the support shaft 26.
- the power feeding device 30 is installed in a parking space of the electric vehicle 12 or a dedicated charging space. When the power receiving head 28 comes into contact with the power feeding device 30, charging from the power feeding device 30 to the electric vehicle 12 is started.
- the power feeding device 30 and the power receiving head 28 used in the contact charging system 10 according to the first embodiment will be described with reference to FIGS.
- the power feeding side motor 38 is rotated while the power feeding terminal 36 and the power receiving terminal 84 are pressed against each other, whereby power is supplied from the power feeding terminal 36 to the power receiving terminal 84.
- the power supply terminal 36 and the power receiving terminal 84 are rotated together.
- the configuration of the power feeding device 30 will be described with reference to FIGS.
- the power feeding device 30 according to the first embodiment includes a pair of terminals that can rotate around a first rotating shaft (a first upper rotating shaft 52 and a first lower rotating shaft 56), that is, a positive power feeding terminal 32 and a negative power feeding.
- a power supply terminal 36 including a terminal 34 and a power supply side motor 38 that rotates the positive electrode power supply terminal 32 and the negative electrode power supply terminal 34 around the first rotation axis are included. The details are configured as follows.
- the pedestal 40 is provided with the wall member 42 standing substantially vertically.
- a first support base 44, a second support base 46, and a motor support base 48 are provided on the wall member 42 so as to be substantially parallel to the base 40 from the top to the bottom.
- the first support base 44 includes an upper bearing 50, and supports the insulating first upper rotating shaft 52 via the upper bearing 50 so as to be rotatable.
- the second support base 46 includes a lower bearing 54 and supports the insulating first lower rotating shaft 56 via the lower bearing 54 so as to be rotatable.
- the motor support 48 supports the power supply side motor 38.
- the positive electrode feeding terminal 32 is made of a conductor such as metal and has a substantially frustoconical outer contact portion 32a and a substantially cylindrical inner contact portion 32b.
- the positive electrode power supply terminal 32 has an integral configuration in which the bottom surface of the truncated cone of the external contact portion 32a and one end of the internal contact portion 32b are coupled.
- the negative electrode power supply terminal 34 is made of a conductor such as metal and has a substantially frustoconical external contact portion 34a and a substantially cylindrical internal contact portion 34b.
- the negative electrode power supply terminal 34 has an integral configuration in which the bottom surface of the truncated cone of the external contact portion 34a and one end of the internal contact portion 34b are coupled.
- the positive electrode power supply terminal 32 and the negative electrode power supply terminal 34 are arranged in a state where the upper surface of the truncated cone of the external contact portion 32a and the upper surface of the truncated cone of the external contact portion 34a are opposed to each other. Then, by attaching an insulating connecting member 58 between the external contact portion 32a and the external contact portion 34a, the positive electrode power supply terminal 32 and the negative electrode power supply terminal 34 are connected.
- One end of the first upper rotating shaft 52 is attached to the internal contact portion 32 b of the positive electrode power supply terminal 32.
- one end of the first lower rotating shaft 56 is attached to the internal contact portion 34 b of the negative electrode power supply terminal 34.
- the first lower rotating shaft 56 is connected to the output shaft of the power feeding side motor 38.
- the first upper rotary shaft 52, the first lower rotary shaft 56, and the connecting member 58 are disposed on the same axis. With such a configuration, the first lower rotating shaft 56, the negative electrode feeding terminal 34, the connecting member 58, the positive electrode feeding terminal 32, and the first upper rotating shaft 52 are coupled to the output shaft of the power feeding side motor 38. When the power supply side motor 38 rotates, the positive electrode power supply terminal 32 and the negative electrode power supply terminal 34 rotate.
- the positive brush 60 is in contact with a part of the outer peripheral surface of the internal contact part 32 b of the positive electrode power supply terminal 32, and the negative electrode brush 62 is in contact with a part of the outer peripheral surface of the internal contact part 34 b of the negative electrode power supply terminal 34.
- the positive brush 60 and the negative brush 62 are electrically connected to a contactor 68 attached to the wall member 42 by harnesses 64 and 66, respectively.
- the contactor 68 is electrically connected to an external power source PW (see FIG. 4) via a cable 70.
- a recess 74 is formed on the front surface (right side in FIG. 2) of the cover 72 of the power feeding device 30. Two openings are formed in the recess 74, and a part of the external contact part 32 a of the positive electrode power supply terminal 32 and a part of the external contact part 34 a of the negative electrode power supply terminal 34 are exposed to the outside from each opening.
- a power supply side proximity sensor 76 is provided at any position of the recess 74, here between the positive electrode power supply terminal 32 and the negative electrode power supply terminal 34. Alternatively, it may be provided at a position facing the power receiving head 28. As the power supply side proximity sensor 76, a proximity switch or a touch sensor can be used.
- the power feeding device 30 includes a power feeding side controller 78.
- the power supply side controller 78 receives a detection signal from the power supply side proximity sensor 76. Further, a command signal is transmitted to the power feeding side motor 38 (including the driver) and the contactor 68.
- the configurations of the power receiving head 28 and the electric vehicle 12 will be described with reference to FIGS. 3 and 4.
- the power receiving head 28 according to the first embodiment includes a positive power receiving terminal 80 and a negative power receiving terminal 82 that are rotatable about a second rotating shaft (second upper rotating shaft 88, second lower rotating shaft 90).
- a terminal 84 is included. The details are configured as follows.
- a mounting member 79 is attached to the tip of the arm 24 (see FIG. 1A etc.) via a bracket (not shown).
- the attachment member 79 supports the support member 83 through the spring 81 so as to be movable in the horizontal direction.
- the spring 81 is pushed between the power feeding terminal 36 and the power receiving terminal 84 in a state where the power feeding terminal 36 (see FIG. 2) and the power receiving terminal 84 are in contact with each other, similarly to the second spring damper 22 (see FIG. 1A and the like). Generate pressure.
- the positive electrode power receiving terminal 80 is made of a conductor such as metal and has a substantially frustoconical external contact portion 80a and a substantially cylindrical internal contact portion 80b.
- the positive electrode power receiving terminal 80 has an integral configuration in which the bottom surface of the truncated cone of the external contact portion 80a and one end of the internal contact portion 80b are coupled.
- the negative electrode power receiving terminal 82 is made of a conductor such as metal, and has a substantially frustoconical external contact portion 82a and a substantially cylindrical internal contact portion 82b.
- the negative electrode power receiving terminal 82 has an integral configuration in which the bottom surface of the truncated cone of the external contact portion 82a is coupled to one end of the internal contact portion 82b.
- the positive electrode receiving terminal 80 and the negative electrode receiving terminal 82 are disposed in a state where the other end of the internal contact portion 80b and the other end of the internal contact portion 82b are opposed to each other. Then, by attaching an insulating connecting member 86 between the internal contact portion 80b and the internal contact portion 82b, the positive electrode receiving terminal 80 and the negative electrode receiving terminal 82 are connected. One end of the second upper rotary shaft 88 is attached to the external contact portion 80 a of the positive electrode power receiving terminal 80. Similarly, one end of the second lower rotating shaft 90 is attached to the external contact portion 82 a of the negative electrode power receiving terminal 82.
- the second upper rotary shaft 88, the second lower rotary shaft 90, and the connecting member 86 are disposed on the same axis. With such a configuration, the second lower rotating shaft 90, the negative electrode receiving terminal 82, the connecting member 86, the positive electrode receiving terminal 80, and the second upper rotating shaft 88 are connected. The second upper rotating shaft 88 and the second lower rotating shaft 90 are rotatably supported by the support member 83.
- the positive electrode brush 92 is in contact with a part of the outer peripheral surface of the internal contact part 80 b of the positive electrode power receiving terminal 80, and the negative electrode brush 94 is in contact with a part of the outer peripheral surface of the internal contact part 82 b of the negative electrode power receiving terminal 82.
- the positive brush 92 and the negative brush 94 are electrically connected to the high voltage battery 102 (see FIG. 4) by harnesses 96 and 98, respectively.
- Two openings are formed in the cover 100 of the power receiving head 28, and a part of the external contact part 80a of the positive electrode power receiving terminal 80 and a part of the external contact part 82a of the negative electrode power receiving terminal 82 are exposed to the outside from each opening.
- the electric vehicle 12 supplies electric power from the high-voltage battery 102 to the electric motor 106 for vehicle propulsion through the PCU 104.
- FIG. 4 movement of the contact charging system 10 which concerns on 1st Embodiment is demonstrated using FIG. 4, FIG.
- the electric vehicle 12 stops at a charging position in the vicinity of the power feeding device 30 and extends the arm 24 (see FIG. 1A and the like) to the side. Then, the power receiving head 28 at the tip of the arm 24 is inserted into the recess 74 (see FIG. 2) of the power feeding device 30.
- step S ⁇ b> 1 the power supply side proximity sensor 76 detects the proximity (contact) between the power supply terminal 36 provided in the power supply device 30 and the power reception terminal 84 provided in the power reception head 28. At this time, the power feeding side proximity sensor 76 transmits a detection signal to the power feeding side controller 78.
- step S ⁇ b> 2 the power supply side controller 78 transmits a start signal to the driver of the power supply side motor 38.
- the driver starts voltage application to the power supply motor 38 in response to the start signal.
- the feed motor 38 is started, and the positive feed terminal 32 and the negative feed terminal 34 connected by the connecting member 58 are connected to the first rotary shaft (first upper rotary shaft 52, first lower rotary shaft 56, FIG. ).
- the power feeding terminal 36 comes into contact with the power receiving terminal 84, a frictional force acts between them, and the driving force of the power feeding side motor 38 is also transmitted to the power receiving terminal 84.
- the positive electrode receiving terminal 80 and the negative electrode receiving terminal 82 rotate around the second rotating shaft (the second upper rotating shaft 88, the second lower rotating shaft 90, see FIG. 3).
- step S3 the power supply side controller 78 transmits an energization signal to the contactor 68.
- the contactor 68 closes the contact according to the energization signal and applies a voltage to the power supply terminal 36. Then, the high voltage battery 102 of the electric vehicle 12 is charged.
- the power supply side controller 78 preferably provides a time difference of a predetermined time or more between the start timing of the power supply side motor 38 performed in step S2 and the voltage application timing to the power supply terminal 36 performed in step S3. . In this way, the voltage can be applied after the power supply terminal 36 and the power receiving terminal 84 are operated together.
- step S4 the power supply side controller 78 determines whether or not the charging is completed. As the determination of the completion of charging, for example, a decrease in current value may be detected. Alternatively, a predetermined charging time may be set, and it may be determined that charging has been completed if an elapsed time after applying the voltage exceeds the predetermined charging time.
- step S4: NO the process returns to step S3, and voltage application is continued.
- step S4: YES the process proceeds to step S5.
- step S ⁇ b> 5 the power supply side controller 78 transmits a cutoff signal to the contactor 68.
- the contactor 68 opens the contact in response to the interruption signal, and stops the voltage application to the power supply terminal 36.
- step S ⁇ b> 6 the power supply side controller 78 transmits a stop signal to the driver of the power supply side motor 38.
- the driver stops the voltage application to the power supply side motor 38 in response to the stop signal.
- the power supply side motor 38 stops, and the rotation of the power supply terminal 36 and the power reception terminal 84 also stops.
- the power feeding side controller 78 provides a time difference of a predetermined time or more between the timing of stopping the voltage application to the power feeding terminal 36 performed in step S5 and the timing of stopping the power feeding side motor 38 performed in step S6. Is preferred. In this way, the operation of the power feeding terminal 36 and the power receiving terminal 84 can be stopped after the application of voltage is stopped.
- a power feeding device 30a and a power receiving head 28a used in the contact charging system 10a (see FIG. 1A, etc.) according to the second embodiment will be described with reference to FIGS.
- the power receiving terminal 84 and the power receiving terminal 84 are pressed against each other, and the power receiving side motor 110 is rotated to power the power receiving terminal 84 to the power feeding terminal 36.
- the power supply terminal 36 and the power receiving terminal 84 are rotated together.
- the configuration of the power feeding device 30a will be described with reference to FIGS.
- the power feeding device 30a according to the second embodiment includes a pair of terminals that can rotate around a first rotating shaft (a first upper rotating shaft 52 and a first lower rotating shaft 56), that is, a positive power feeding terminal 32 and a negative power feeding.
- a power supply terminal 36 including a terminal 34 is included.
- the configuration of the power feeding device 30a matches the configuration of the power feeding device 30 according to the first embodiment shown in FIGS. 2 and 4 in many respects. For this reason, in the power feeding device 30a shown in FIG. 6 and FIG. 8, the same reference numerals are given to components common to the power feeding device 30, and description thereof is omitted.
- the power feeding device 30a shown in FIGS. 6 and 8 is different from the power feeding device 30 shown in FIGS. 2 and 4 in that the power feeding side motor 38 is not used.
- the power receiving head 28a includes a positive power receiving terminal 80 and a negative power receiving terminal 82 that are rotatable about a second rotating shaft (second upper rotating shaft 88, second lower rotating shaft 90). And a power receiving side motor 110 that rotates the terminal 84 and the positive power receiving terminal 80 and the negative power receiving terminal 82 about the second rotation axis.
- the configurations of the power receiving head 28a and the electric vehicle 12a are identical in many respects to the configurations of the power receiving head 28 and the electric vehicle 12 according to the first embodiment shown in FIGS. For this reason, in the power receiving head 28a and the electric vehicle 12a shown in FIGS. 7 and 8, the same reference numerals are given to the same components as those of the power receiving head 28 and the electric vehicle 12, and the description thereof is omitted.
- the power receiving head 28a shown in FIG. 7 is different from the power receiving head 28 shown in FIG. 3 in that it includes a power receiving side motor 110 and a power receiving side proximity sensor 112.
- the electric vehicle 12a shown in FIG. 8 is different from the electric vehicle 12 shown in FIG. 4 in that it includes a power receiving side controller 114 in addition to the power receiving head 28a.
- the second lower rotating shaft 90 is connected to the output shaft of the power receiving side motor 110.
- the second lower rotating shaft 90, the negative power receiving terminal 82, the connecting member 86, the positive power receiving terminal 80, and the second upper rotating shaft 88 are connected to the output shaft of the power receiving side motor 110.
- the power receiving motor 110 rotates, the positive power receiving terminal 80 and the negative power receiving terminal 82 rotate.
- the power receiving side proximity sensor 112 is provided at any position of the cover 100, here between the positive electrode power supply terminal 32 and the negative electrode power supply terminal 34. In addition, you may provide in the position facing the electric power feeder 30a. As the power reception side proximity sensor 112, a proximity switch or a touch sensor can be used.
- the electric vehicle 12 a has a power receiving side controller 114.
- the power receiving side controller 114 receives the detection signal from the power receiving side proximity sensor 112.
- a command signal is transmitted to the power receiving side motor 110 (including the driver).
- the processing flow of the contact charging system 10a according to the second embodiment is the same as the processing flow (FIG. 5) of the contact charging system 10 according to the first embodiment. Then, operation
- the electric vehicle 12a stops at a charging position in the vicinity of the power feeding device 30a, and extends the arm 24 (see FIG. 1A and the like) to the side. Then, the power receiving head 28a at the tip of the arm 24 is inserted into the recess 74 (see FIG. 6) of the power feeding device 30a.
- step S1 the power supply side proximity sensor 76 and the power reception side proximity sensor 112 detect the proximity (contact) between the power supply terminal 36 provided in the power supply device 30a and the power reception terminal 84 provided in the power reception head 28a. At this time, the power feeding side proximity sensor 76 transmits a detection signal to the power feeding side controller 78. In addition, the power reception side proximity sensor 112 transmits a detection signal to the power reception side controller 114.
- step S2 the power receiving side controller 114 transmits a start signal to the driver of the power receiving side motor 110.
- the driver starts voltage application to the power receiving motor 110 in response to the start signal.
- the power receiving motor 110 is started, and the positive power receiving terminal 80 and the negative power receiving terminal 82 connected by the connecting member 86 are connected to the second rotating shaft (second upper rotating shaft 88, second lower rotating shaft 90, FIG. ).
- the power receiving terminal 84 comes into contact with the power feeding terminal 36, a frictional force acts between them, and the driving force of the power receiving side motor 110 is also transmitted to the power feeding terminal 36.
- the positive electrode power supply terminal 32 and the negative electrode power supply terminal 34 rotate around the first rotating shaft (the first upper rotating shaft 52, the first lower rotating shaft 56, see FIG. 6).
- step S3 the power supply side controller 78 transmits an energization signal to the contactor 68.
- the contactor 68 closes the contact according to the energization signal and applies a voltage to the power supply terminal 36. Then, the high voltage battery 102 of the electric vehicle 12 is charged.
- the power supply side controller 78 may provide a time difference of a predetermined time or more between the start timing of the power receiving side motor 110 performed in step S2 and the timing of voltage application to the power supply terminal 36 performed in step S3. preferable. In this way, the voltage can be applied after the power supply terminal 36 and the power receiving terminal 84 are operated together.
- step S4 the power supply side controller 78 determines whether or not the charging is completed. As the determination of the completion of charging, for example, a decrease in current value may be detected. Alternatively, a predetermined charging time may be set, and it may be determined that charging has been completed if an elapsed time after applying the voltage exceeds the predetermined charging time.
- step S4: NO the process returns to step S3, and voltage application is continued.
- step S4: YES the process proceeds to step S5.
- step S ⁇ b> 5 the power supply side controller 78 transmits a cutoff signal to the contactor 68.
- the contactor 68 opens the contact in response to the interruption signal, and stops the voltage application to the power supply terminal 36.
- step S6 the power receiving side controller 114 transmits a stop signal to the driver of the power receiving side motor 110.
- a stop signal is transmitted when separation (non-contact) is detected by the power reception side proximity sensor 112.
- the driver stops the voltage application to the power receiving motor 110 in response to the stop signal.
- the power receiving side motor 110 stops and the rotation of the power feeding terminal 36 and the power receiving terminal 84 also stops.
- the power supply device 30b and the electric vehicle 12b are connected by wireless communication, and a voltage application command signal and a voltage application stop command signal are transmitted from the electric vehicle 12b side to the power supply device 30b side. .
- a voltage application command signal and a voltage application stop command signal are transmitted from the electric vehicle 12b side to the power supply device 30b side.
- the configuration of the power feeding device 30b will be described with reference to FIG.
- the configuration of the power feeding device 30b matches the configuration of the power feeding device 30a according to the second embodiment shown in FIG. 8 in many respects. For this reason, in the power feeding apparatus 30b shown in FIG. 9, the same code
- the power feeding device 30b illustrated in FIG. 9 is different from the power feeding device 30a illustrated in FIG. 8 in that the power feeding side communication unit 120 is used and the power feeding side proximity sensor 76 is not used.
- the power supply side communication unit 120 receives a command signal transmitted from the power reception side communication unit 122.
- the configuration of the electric vehicle 12b will be described with reference to FIG.
- the configuration of the electric vehicle 12b is identical in many respects to the configuration of the electric vehicle 12a according to the second embodiment shown in FIG.
- symbol is attached
- the electric vehicle 12b shown in FIG. 9 is different from the electric vehicle 12a shown in FIG. 8 in that the battery ECU 121 and the power receiving side communication unit 122 are used.
- the battery ECU 121 monitors the SOC (State Of Charge) of the high-voltage battery 102.
- the power receiving side communication unit 122 transmits a command signal to the power feeding side communication unit 120.
- step S11 the power reception side proximity sensor 112 detects the proximity (contact) between the power supply terminal 36 provided in the power supply device 30b and the power reception terminal 84 provided in the power reception head 28a. At this time, the power reception side proximity sensor 112 transmits a detection signal to the power reception side controller 114.
- step S ⁇ b> 12 the power receiving side controller 114 transmits a start signal to the driver of the power receiving side motor 110.
- the driver starts voltage application to the power receiving motor 110 in response to the start signal.
- the power receiving motor 110 is started, and the positive power receiving terminal 80 and the negative power receiving terminal 82 connected by the connecting member 86 are connected to the second rotating shaft (second upper rotating shaft 88, second lower rotating shaft 90, FIG. ).
- the power receiving terminal 84 comes into contact with the power feeding terminal 36, a frictional force acts between them, and the driving force of the power receiving side motor 110 is also transmitted to the power feeding terminal 36.
- the positive electrode power supply terminal 32 and the negative electrode power supply terminal 34 rotate around the first rotating shaft (the first upper rotating shaft 52, the first lower rotating shaft 56, see FIG. 6).
- step S13 the power receiving side controller 114 instructs the power receiving side communication unit 122 to transmit a voltage application command.
- the power reception side communication unit 122 transmits a voltage application command signal to the power supply side communication unit 120.
- the power supply side communication unit 120 receives a command signal transmitted from the power reception side communication unit 122.
- the power receiving side controller 114 preferably provides a time difference of a predetermined time or more between the start timing of the power receiving side motor 110 performed in step S12 and the transmission timing of the voltage application command signal performed in step S13. . In this way, the voltage can be applied after the power supply terminal 36 and the power receiving terminal 84 are operated together.
- step S ⁇ b> 14 the power supply side controller 78 that has received the voltage application command signal via the power supply side communication unit 120 transmits an energization signal to the contactor 68.
- the contactor 68 closes the contact according to the energization signal and applies a voltage to the power supply terminal 36. Then, the high voltage battery 102 of the electric vehicle 12b is charged.
- step S15 the battery ECU 121 monitors the SOC of the high voltage battery 102.
- the SOC is less than the predetermined amount, it is determined that charging is not completed (step S15: NO). In this case, the process returns to step S14 and the voltage application is continued.
- step S15: YES the process proceeds to step S16.
- step S16 the power receiving side controller 114 instructs the power receiving side communication unit 122 to transmit a voltage application stop command.
- the power reception side communication unit 122 transmits a voltage application stop command signal to the power supply side communication unit 120.
- the power supply side communication unit 120 receives a command signal transmitted from the power reception side communication unit 122.
- step S ⁇ b> 17 the power supply side controller 78 that receives the voltage application stop command signal via the power supply side communication unit 120 transmits a cutoff signal to the contactor 68.
- the contactor 68 opens the contact in response to the interruption signal, and stops the voltage application to the power supply terminal 36.
- step S18 the power receiving side controller 114 transmits a stop signal to the driver of the power receiving side motor 110.
- the driver stops the voltage application to the power receiving motor 110 in response to the stop signal.
- the power receiving side motor 110 stops and the rotation of the power feeding terminal 36 and the power receiving terminal 84 also stops.
- the power receiving side controller 114 may provide a time difference of a predetermined time or more between the transmission timing of the voltage application stop command signal performed in step S17 and the timing of stopping the power receiving side motor 110 performed in step S18. preferable. In this way, the operation of the power feeding terminal 36 and the power receiving terminal 84 can be stopped after the application of voltage is stopped.
- a power supply device 30c of the fourth embodiment shown in FIG. 11 is obtained by providing a pressing mechanism (first wall member 124, second wall member 126, springs 128, 130) to the power supply device 30a shown in FIG.
- This pressing mechanism generates a pressing force between the power feeding terminal 36 and the power receiving terminal 84 in a state where the power feeding terminal 36 and the power receiving terminal 84 are in contact with each other.
- the pedestal 40 is provided with the first wall member 124 standing substantially vertically.
- the second wall member 126 is supported on the first wall member 124 through the springs 128 and 130 so as to face each other.
- a first support base 44, a second support base 46, and a contactor 68 are attached to the second wall member 126. Between the first support base 44 and the second support base 46, the power supply terminal 36 is supported in a state of being rotatable around the first rotation shaft (the first upper rotation shaft 52 and the first lower rotation shaft 56).
- a contact charging system 140 as shown in FIG. 12 may be used.
- the contact charging system 140 includes a power feeding device 142 that can charge a plurality of electric vehicles 12 simultaneously.
- the power feeding device 142 includes a power feeding terminal 148 including a disc-shaped or annular positive power feeding terminal 144 and a negative power feeding terminal 146.
- the positive electrode power supply terminal 144 and the negative electrode power supply terminal 146 are connected, and rotate around the rotation axis O in accordance with driving of a motor (not shown).
- the power supply terminal 148 and each component are accommodated in the case 150.
- Charging is performed when a power receiving terminal 84 (see FIG. 3) provided in the power receiving head 28 of the electric vehicle 12 is in contact with the power feeding terminal 148 and a voltage is applied to the power feeding terminal 148.
- the power feeding terminal 148 and the power receiving terminal 84 are pressed against each other by the second spring damper 22 provided in the electric vehicle 12 (see FIG. 1A and the like) and the spring 81 provided in the power receiving head 28 (see FIG. 3).
- a contact charging system 210 as shown in FIG. 13 may be used.
- the power feeding device 230 includes a power feeding head 228 at the tip of the cable 240 (or arm).
- the power feeding head 228 includes a positive electrode power supply terminal 232 and a negative electrode power supply terminal 234 that are rotatable about a first rotation axis (a first upper rotation axis 252 and a first lower rotation axis 256).
- a power supply terminal 236 is included.
- the basic structure of the power feeding head 228 is the same as that of the power receiving head 28 shown in FIG.
- the cable 240 (see FIG. 13) is covered with a tube on the outer periphery.
- An attachment member 279 is attached to the tip of the tube.
- the attachment member 279 supports the support member 283 via the spring 281 so as to be movable in the horizontal direction.
- the spring 281 generates a pressing force between the power feeding terminal 236 and the power receiving terminal 284 in a state where the power feeding terminal 236 and the power receiving terminal 284 (see FIG. 15) are in contact with each other.
- the positive electrode power supply terminal 232 has an external contact portion 232a and an internal contact portion 232b.
- the negative electrode power supply terminal 234 has an external contact portion 234a and an internal contact portion 234b.
- the first upper rotary shaft 252, the first lower rotary shaft 256 and the connecting member 258 are disposed on the same axis. With such a configuration, the first lower rotating shaft 256, the negative electrode feeding terminal 234, the connecting member 258, the positive electrode feeding terminal 232, and the first upper rotating shaft 252 are connected. The first upper rotating shaft 252 and the first lower rotating shaft 256 are rotatably supported by the support member 283.
- the positive electrode brush 260 is in contact with a part of the outer peripheral surface of the internal contact portion 232b of the positive electrode power supply terminal 232, and the negative electrode brush 262 is in contact with a part of the outer peripheral surface of the internal contact portion 234b of the negative electrode power supply terminal 234.
- the positive brush 260 and the negative brush 262 are electrically connected to a contactor (not shown) by harnesses 264 and 266, respectively.
- Two openings are formed in the cover 300 of the power feeding head 228, and a part of the external contact part 232a of the positive electrode power supply terminal 232 and a part of the external contact part 234a of the negative electrode power supply terminal 234 are exposed to the outside from each opening.
- the electric vehicle 212 includes a positive power receiving terminal 280 and a negative power receiving terminal 282 that are rotatable around a second rotating shaft (second upper rotating shaft 288, second lower rotating shaft 290).
- a power receiving terminal 284, and a power receiving side motor 238 that rotates the positive power receiving terminal 280 and the negative power receiving terminal 282 about the second rotation axis are included.
- the power receiving side motor 238 is supplied with electric power from a low voltage battery (not shown) mounted on the electric vehicle 212, but reduces the output voltage of the high voltage battery 102 to receive power from the high voltage battery 102. Electric power may be supplied to the motor 238.
- a mounting member 242 is provided on a frame (not shown) of the electric vehicle 212.
- the attachment member 242 is provided with a first support base 244, a second support base 246, and a motor support base 248.
- the first support 244 supports the insulating second upper rotary shaft 288 via the upper bearing 250 so as to be rotatable.
- the second support 246 supports the insulating second lower rotating shaft 290 via the lower bearing 254 so as to be rotatable.
- the motor support base 248 supports the power receiving side motor 238.
- the positive electrode power receiving terminal 280 has an external contact portion 280a and an internal contact portion 280b.
- the negative electrode power receiving terminal 282 has an external contact portion 282a and an internal contact portion 282b.
- an insulating connecting member 286 between the positive electrode receiving terminal 280 and the negative electrode receiving terminal 282
- the positive electrode receiving terminal 280 and the negative electrode receiving terminal 282 are connected.
- One end of the second upper rotating shaft 288 is attached to the internal contact portion 280 b of the positive electrode power receiving terminal 280.
- one end of the second lower rotating shaft 290 is attached to the internal contact portion 282b of the negative electrode power receiving terminal 282.
- the second lower rotating shaft 290 is connected to the output shaft of the power receiving side motor 238.
- the second upper rotary shaft 288, the second lower rotary shaft 290, and the connecting member 286 are disposed on the same axis. With such a configuration, the second lower rotating shaft 290, the negative power receiving terminal 282, the connecting member 286, the positive power receiving terminal 280, and the second upper rotating shaft 288 are connected to the output shaft of the power receiving side motor 238. When the power receiving motor 238 rotates, the positive power receiving terminal 280 and the negative power receiving terminal 282 rotate.
- the positive electrode brush 260 is in contact with a part of the outer peripheral surface of the internal contact part 280b of the positive electrode power receiving terminal 280, and the negative electrode brush 262 is in contact with a part of the outer peripheral surface of the internal contact part 282b of the negative electrode power receiving terminal 282.
- the positive brush 260 and the negative brush 262 are electrically connected to the high voltage battery 102 by harnesses 264 and 266, respectively.
- the cover 272 of the electric vehicle 212 (that is, the body surface of the electric vehicle 212) is provided with a bottomed insertion hole 272a.
- the insertion hole 272a surrounds the power feeding terminal 236 and the power receiving terminal 284 when the power feeding terminal 236 and the power receiving terminal 284 come into contact with each other.
- a recess 274 is formed at the bottom of the insertion hole 272a. Two openings are formed in the recess 274, and a part of the external contact part 280 a of the positive electrode power receiving terminal 280 and a part of the external contact part 282 a of the negative electrode power receiving terminal 282 are exposed to the outside from each opening.
- a power reception-side proximity sensor 276 is provided at any position of the recess 274, here between the positive power receiving terminal 280 and the negative power receiving terminal 282.
- a lid (lid portion) that can be isolated from the outside of the electric vehicle 212 in a state where the power feeding terminal 236 and the power receiving terminal 284 are in contact with each other in the insertion hole 272a may be provided.
- the power receiving terminal 284 is rotated by the power receiving side motor 238, but a motor may be provided on the power feeding side to rotate the power feeding terminal 236.
- the contact charging systems 10, 10 a, 10 b, 140, and 210 include an electric vehicle (power receiving device) 12 from power feeding terminals 36, 148, and 236 of power feeding devices 30, 30 a, 30 b, 142, and 230. , 12a, 12b, 212 to charge the high voltage battery 102 (power storage unit) of the electric vehicles 12, 12a, 12b, 212 by supplying power to the power receiving terminals 84, 284. Both the power supply terminals 36, 148, 236 and the power receiving terminals 84, 284 are rotatable.
- a power feeding side motor 38 or a power receiving side motor 110, 238 (rotational power mechanism) that rotates any one of the power feeding terminals 36, 148, 236 and the power receiving terminals 84, 284 is provided.
- the power feeding terminals 36, 148, 236 and the power receiving terminal are rotated by rotating the rotating power mechanism while the power feeding terminals 36, 148, 236 and the power receiving terminals 84, 284 are pressed against each other. Power is transmitted from one of the power supply terminals 84, 284 to the other, and the power supply terminals 36, 148, 236 and the power reception terminals 84, 284 are rotated together. To supply power.
- any one of the power feeding terminals 36, 148, 236 and the power receiving terminals 84, 284 is rotated by the power feeding motor 38 or the power receiving motor 110, 238.
- the other terminals are also rotated by the frictional force.
- the contact points between the power supply terminals 36, 148, 236 and the power receiving terminals 84, 284 are not concentrated in part. Can prevent the power feeding terminals 36, 148, 236 and the power receiving terminals 84, 284 from being damaged or welded.
- the power supply side controller 78 or the power reception side controller 114 controls the start timing of the power supply side motor 38 or the power reception side motors 110 and 238 and the timing of voltage application to the power supply terminals 36, 148 and 236. At this time, the power supply side controller 78 or the power reception side controller 114 applies a voltage to the power supply terminals 36, 148 and 236 after a predetermined time has elapsed since the power supply side motor 38 or the power reception side motor 110 was started.
- the power feeding terminals 36, 148, 236 and the power receiving terminals 84, 284 are reliably rotated at the start of charging. Can be made. With such a configuration, contact portions between the power feeding terminals 36, 148, and 236 and the power receiving terminals 84 and 284 are not concentrated in part, so that even when charging with a large amount of supplied power, the power feeding terminals 36, 148, and 236 Damage or welding of the power receiving terminals 84 and 284 can be prevented.
- the first to sixth embodiments show the deformation of the present invention, but the present invention is not limited to the structure shown in each embodiment.
- the present invention provides a rotational power mechanism that rotates at least a part of the power supply terminal 36 and the power receiving terminal 84 and the like, and a pressing mechanism that can press the power supply terminal 36 and the power receiving terminal 84 and the like so as to maintain a contact state between them.
- any embodiment may be sufficient.
- an elastic member such as a spring or a damper, but may include a holding member or a fixing member that holds the contact state between the power supply terminal 36 and the power receiving terminal 84.
- the positive electrode power supply terminal 32 and the negative electrode power supply terminal 34 are connected, and the positive electrode power reception terminal 80 and the negative electrode power reception terminal 82 are connected.
- any one may be connected. If any one of the positive electrode power supply terminal 32 and the negative electrode power supply terminal 34 or the positive electrode power reception terminal 80 and the negative electrode power reception terminal 82 is connected, any one of the four terminals is connected to the motor when the power supply terminal 36 and the power reception terminal 84 are in contact with each other. By rotating at, all terminals can be rotated. The same applies to the other embodiments.
- first upper rotating shaft 52 and the first lower rotating shaft 56 are arranged on the same axis, but the axes may be shifted.
- second upper rotary shaft 88 and the second lower rotary shaft 90 are arranged on the same axis, but the axes may be shifted. The same applies to the other embodiments.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
Description
図1A、図1B、図1Cを用いて接触充電システム10の構成を説明する。接触充電システム10は、受電装置としての電動車両12と、電動車両12の外部に設置される給電装置30とからなる。
図2~図4を用いて第1実施形態に係る接触充電システム10で使用される給電装置30と受電ヘッド28の説明をする。第1実施形態は、高圧バッテリ102を充電する際に、給電端子36と受電端子84とが互いに押圧された状態で給電側モータ38を回転させることにより、給電端子36から受電端子84に動力を伝達して、給電端子36と受電端子84を共に回転させるものである。
図2、図4を用いて給電装置30の構成を説明する。第1実施形態に係る給電装置30は、第1回転軸(第1上部回転軸52、第1下部回転軸56)を中心にして回転可能である一対の端子、すなわち正極給電端子32及び負極給電端子34を備える給電端子36と、正極給電端子32及び負極給電端子34を、第1回転軸を中心にして回転させる給電側モータ38と、を含む。詳細には次のように構成される。
図3、図4を用いて受電ヘッド28及び電動車両12の構成を説明する。第1実施形態に係る受電ヘッド28は、第2回転軸(第2上部回転軸88、第2下部回転軸90)を中心にして回転可能である正極受電端子80及び負極受電端子82を備える受電端子84を含む。詳細には次のように構成される。
図4、図5を用いて第1実施形態に係る接触充電システム10の動作を説明する。電動車両12は給電装置30の近辺の充電位置に停車し、アーム24(図1A等参照)を側方に延ばす。すると、アーム24先端の受電ヘッド28が、給電装置30の凹部74(図2参照)に挿入される。
図6~図8を用いて第2実施形態に係る接触充電システム10a(図1A等参照)で使用される給電装置30aと受電ヘッド28aの説明をする。第2実施形態は、高圧バッテリ102を充電する際に、給電端子36と受電端子84とが互いに押圧された状態で受電側モータ110を回転させることにより、受電端子84から給電端子36に動力を伝達して、給電端子36と受電端子84を共に回転させるものである。
図6、図8を用いて給電装置30aの構成を説明する。第2実施形態に係る給電装置30aは、第1回転軸(第1上部回転軸52、第1下部回転軸56)を中心にして回転可能である一対の端子、すなわち正極給電端子32及び負極給電端子34を備える給電端子36を含む。
図7、図8を用いて受電ヘッド28a及び電動車両12aの構成を説明する。第2実施形態に係る受電ヘッド28aは、第2回転軸(第2上部回転軸88、第2下部回転軸90)を中心にして回転可能である正極受電端子80及び負極受電端子82を備える受電端子84と、正極受電端子80及び負極受電端子82を、第2回転軸を中心にして回転させる受電側モータ110と、を含む。
第2実施形態に係る接触充電システム10aの処理フローは、第1実施形態に係る接触充電システム10の処理フロー(図5)と同じである。そこで、図5、図8を用いて第2実施形態に係る接触充電システム10の動作を説明する。電動車両12aは給電装置30aの近辺の充電位置に停車し、アーム24(図1A等参照)を側方に延ばす。すると、アーム24先端の受電ヘッド28aが、給電装置30aの凹部74(図6参照)に挿入される。
第3実施形態は、給電装置30bと電動車両12bとを無線通信で接続し、電動車両12b側から給電装置30b側に、電圧印加の指令信号及び電圧印加停止の指令信号を送信するものである。
[4.1.給電装置30bの構成]
図9を用いて電動車両12bの構成を説明する。電動車両12bの構成は、図8で示す第2実施形態に係る電動車両12aの構成と、多くの点で一致する。このため、図9で示す電動車両12bにおいて、電動車両12aと共通する構成には同一の符号を付し、その説明を省略する。図9で示す電動車両12bは、図8で示す電動車両12aと比較して、バッテリECU121と受電側通信部122を使用する点で相違する。バッテリECU121は、高圧バッテリ102のSOC(State Of Charge)を監視する。受電側通信部122は、給電側通信部120に対して指令信号を送信する。
図9、図10を用いて第3実施形態に係る接触充電システム10bの動作を説明する。電動車両12bは給電装置30bの近辺の充電位置に停車し、アーム24(図1A等参照)を側方に延ばす。すると、アーム24先端の受電ヘッド28が、給電装置30の凹部74(図6参照)に挿入される。
図11で示す第4実施形態の給電装置30cは、図6で示す給電装置30aに、押圧機構(第1壁部材124、第2壁部材126、スプリング128、130)を設けたものである。この押圧機構は、給電端子36と受電端子84とが接触した状態で、給電端子36と受電端子84との間に押圧力を発生させる。
図12で示すような接触充電システム140であってもよい。接触充電システム140は、複数の電動車両12を同時に充電可能な給電装置142を備える。給電装置142は、円板状又は円環状の正極給電端子144及び負極給電端子146からなる給電端子148を有する。正極給電端子144と負極給電端子146は連結されており、図示しないモータの駆動に応じて回転軸Oを中心にして回転する。給電端子148及び各部品はケース150に収容される。
図13で示すような接触充電システム210であってもよい。第6実施形態に係る接触充電システム210は、第1~第5実施形態と異なり、給電装置230がケーブル240(又はアーム)の先端に給電ヘッド228を備えるものである。
図14で示すように、給電ヘッド228は、第1回転軸(第1上部回転軸252、第1下部回転軸256)を中心にして回転可能である正極給電端子232及び負極給電端子234を備える給電端子236を含む。給電ヘッド228の基本的な構造は、図3で示す受電ヘッド28と同じである。
図15で示すように、電動車両212は、第2回転軸(第2上部回転軸288、第2下部回転軸290)を中心にして回転可能である正極受電端子280及び負極受電端子282を備える受電端子284と、正極受電端子280及び負極受電端子282を、第2回転軸を中心にして回転させる受電側モータ238と、を含む。ここで、受電側モータ238は、電動車両212に搭載された低圧バッテリ(図示せず)から電力を供給されているが、高圧バッテリ102の出力電圧を降圧することで、高圧バッテリ102から受電側モータ238に電力を供給してもよい。
第1~第6実施形態に係る接触充電システム10、10a、10b、140、210は、給電装置30、30a、30b、142、230の給電端子36、148、236から電動車両(受電装置)12、12a、12b、212の受電端子84、284に電力を供給することにより電動車両12、12a、12b、212の高圧バッテリ102(蓄電部)を充電する。給電端子36、148、236と受電端子84、284は共に回転可能である。更に、給電端子36、148、236と受電端子84、284のいずれか一方を回転させる給電側モータ38又は受電側モータ110、238(回転動力機構)が備えられる。高圧バッテリ102を充電する際には、給電端子36、148、236と受電端子84、284とが互いに押圧された状態で回転動力機構を回転させることにより、給電端子36、148、236と受電端子84、284のいずれか一方から他方に動力を伝達して、給電端子36、148、236と受電端子84、284を共に回転させた状態で、給電端子36、148、236から受電端子84、284に電力を供給する。
上述したように、第1~第6実施形態は、本発明のデフォルメを示しているが、本発明は各実施形態で示した構造に限られるものではない。本発明は、給電端子36等と受電端子84等の少なくとも一部を回転させる回転動力機構と、給電端子36等と受電端子84等との接触状態を維持できる程度に、互いに押圧可能な押圧機構を有するものであれば、いずれの実施形態であってもよい。すなわち、必ずしもスプリングやダンパー等の弾性部材で構成しなくとも、給電端子36等と受電端子84等の接触状態を保持する保持部材又は固定部材によって構成してもよい。
Claims (11)
- 給電装置(30)の給電端子(36)から受電装置(12)の受電端子(84)に電力を供給することにより前記受電装置(12)の蓄電部(102)を充電する接触充電システム(10)であって、
前記給電端子(36)と前記受電端子(84)は共に回転可能であり、
更に、前記給電端子(36)と前記受電端子(84)のいずれか一方を回転させる回転動力機構(38)を備え、
前記蓄電部(102)を充電する際に、前記給電端子(36)と前記受電端子(84)とが互いに押圧された状態で前記回転動力機構(38)を回転させることにより、前記給電端子(36)と前記受電端子(84)のいずれか一方から他方に動力を伝達して、前記給電端子(36)と前記受電端子(84)を共に回転させた状態で、前記給電端子(36)から前記受電端子(84)に電力を供給する
ことを特徴とする接触充電システム(10)。 - 請求項1に記載の接触充電システム(10)において、
前記給電端子(36)と前記受電端子(84)は、それぞれ一対の端子を備え、
前記給電端子(36)と前記受電端子(84)のいずれか一方の前記一対の端子は、同一の軸線上にあり、
前記回転動力機構(38)は、前記給電端子(36)と前記受電端子(84)のいずれか一方の前記一対の端子を、前記軸線を中心にして回転させる
ことを特徴とする接触充電システム(10)。 - 請求項2に記載の接触充電システム(10)において、
更に、前記給電端子(36)と前記受電端子(84)のいずれか一方の前記一対の端子に接触すると共に、前記給電端子(36)と前記受電端子(84)のいずれか一方の電力線に接続されるブラシを備える
ことを特徴とする接触充電システム(10)。 - 請求項1~3のいずれか1項に記載の接触充電システム(10)において、
更に、前記回転動力機構(38)の始動タイミング及び前記給電端子(36)への電圧印加タイミングを制御するコントローラ(78)を備える
ことを特徴とする接触充電システム(10)。 - 請求項4に記載の接触充電システム(10)において、
前記コントローラ(78)は、前記回転動力機構(38)を始動させてから所定時間経過後に、前記給電端子(36)に電圧を印加する
ことを特徴とする接触充電システム(10)。 - 請求項4に記載の接触充電システム(10)において、
更に、前記給電端子(36)と前記受電端子(84)とが接触していることを検知する検知装置(76)を備え、
前記コントローラ(78)は、前記検知装置(76)により前記給電端子(36)と前記受電端子(84)との接触が検知された場合に、前記回転動力機構(38)を駆動させ、前記給電端子(36)に電圧を印可する
ことを特徴とする接触充電システム(10)。 - 請求項1~6のいずれか1項に記載の接触充電システム(10)において、
前記受電装置(12)は電動車両に含まれ、
前記受電端子(84)は、前記電動車両の内側に設けられており、
前記給電端子(36)と前記受電端子(84)とが互いに接触した状態で、前記受電端子(84)及び前記給電端子(36)がカバーで囲まれる
ことを特徴とする接触充電システム(10)。 - 外部の受電装置(12)に対して電力を供給する給電端子(36)を備える給電装置(30)であって、
前記給電端子(36)は、回転軸(52、56)を中心にして回転可能であり、
更に、前記給電端子(36)を、前記回転軸(52、56)を中心にして回転させる回転動力機構(38)を備える
ことを特徴とする給電装置(30)。 - 外部の給電装置(30)から電力を入力する受電端子(84)及び蓄電する蓄電部(102)を備える受電装置(12a)であって、
前記受電端子(84)は、回転軸(88、90)を中心にして回転可能であり、
更に、前記受電端子(84)を、前記回転軸(88、90)を中心にして回転させる回転動力機構(110)を備える
ことを特徴とする受電装置(12a)。 - 給電装置(30)の給電端子(36)と受電装置(12)の受電端子(84)とを接触させて、前記給電端子(36)から前記受電端子(84)に電力を供給することにより受電装置(12)の蓄電部(102)を充電する接触充電方法であって、
前記給電端子(36)と前記受電端子(84)のいずれか一方を、回転軸を中心にして回転させつつ、前記給電端子(36)と前記受電端子(84)とを接触させて、前記給電端子(36)から前記受電端子(84)に電力を供給する
ことを特徴とする接触充電方法。 - 請求項10に記載の接触充電方法において、
前記給電端子(36)と前記受電端子(84)との近接又は接触が検知されるに応じて、前記給電端子(36)と前記受電端子(84)のいずれか一方を回転させ、その後に、前記給電端子(36)から前記受電端子(84)への電力の供給を開始する
ことを特徴とする接触充電方法。
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108808376A (zh) * | 2018-06-27 | 2018-11-13 | 武汉合康智能电气有限公司 | 充电桩自动对接装置 |
CN113000449A (zh) * | 2021-04-07 | 2021-06-22 | 苏州云刚智能科技有限公司 | 一种线缆清理装置及具有该装置的充电桩及清理方法 |
CN113000449B (zh) * | 2021-04-07 | 2022-11-11 | 国网湖北省电力有限公司随州供电公司 | 一种线缆清理装置及具有该装置的充电桩及清理方法 |
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Publication number | Publication date |
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CN108702010A (zh) | 2018-10-23 |
EP3416261A1 (en) | 2018-12-19 |
US20190047425A1 (en) | 2019-02-14 |
JP6560369B2 (ja) | 2019-08-14 |
CN108702010B (zh) | 2022-06-03 |
JPWO2017138508A1 (ja) | 2018-09-20 |
EP3416261B1 (en) | 2021-07-21 |
EP3416261A4 (en) | 2019-01-16 |
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