WO2014199725A1 - 電力変換装置 - Google Patents

電力変換装置 Download PDF

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Publication number
WO2014199725A1
WO2014199725A1 PCT/JP2014/061001 JP2014061001W WO2014199725A1 WO 2014199725 A1 WO2014199725 A1 WO 2014199725A1 JP 2014061001 W JP2014061001 W JP 2014061001W WO 2014199725 A1 WO2014199725 A1 WO 2014199725A1
Authority
WO
WIPO (PCT)
Prior art keywords
connector
hole
connection detection
wiring
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2014/061001
Other languages
English (en)
French (fr)
Inventor
裕二 曽部
幹人 小松
達也 中澤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Astemo Ltd
Original Assignee
Hitachi Automotive Systems Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Automotive Systems Ltd filed Critical Hitachi Automotive Systems Ltd
Priority to JP2015522624A priority Critical patent/JPWO2014199725A1/ja
Priority to EP14811732.8A priority patent/EP3010102B1/en
Priority to US14/893,392 priority patent/US9561728B2/en
Priority to CN201480031422.3A priority patent/CN105247749B/zh
Publication of WO2014199725A1 publication Critical patent/WO2014199725A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0069—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to the isolation, e.g. ground fault or leak current
    • 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/04—Cutting off the power supply under fault conditions
    • 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
    • B60L53/11—DC charging controlled by the charging station, e.g. mode 4
    • 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
    • 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
    • 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
    • B60L53/65—Monitoring or controlling charging stations involving identification of vehicles or their battery types
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/40—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the exchange of charge or discharge related data
    • H02J7/443—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the exchange of charge or discharge related data using passive battery identification means, e.g. resistors or capacitors
    • H02J7/448—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the exchange of charge or discharge related data using passive battery identification means, e.g. resistors or capacitors using switches, contacts or markings, e.g. optical, magnetic or barcode
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/485—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries with provisions for charging different types of batteries
    • 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
    • B60L2210/00—Converter types
    • B60L2210/10—DC to DC converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/0207—Wire harnesses
    • B60R16/0215—Protecting, fastening and routing means therefor
    • B60R16/0222—Grommets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
    • H01R13/7039—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part the coupling part with coding means activating the switch to establish different circuits
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T10/72—Electric energy management in electromobility
    • 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
    • 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
    • Y02T90/14—Plug-in electric vehicles
    • 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
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Definitions

  • the present invention relates to a power conversion device, and more particularly to a power conversion device mounted on an automobile that obtains driving power by an electric motor.
  • An automobile that obtains driving power by an electric motor is a low voltage for operating a high voltage storage battery for driving an electric motor used as power and auxiliary equipment such as a vehicle light or a radio.
  • a voltage storage battery is provided.
  • Such a vehicle is equipped with a power conversion device (DC-DC converter device) that performs power conversion from a high voltage storage battery to a low voltage storage battery or power conversion from a low voltage storage battery to a high voltage storage battery.
  • the DC-DC converter device is housed in the same housing as that housed in an independent housing or other devices required for the vehicle (for example, an inverter device for driving an electric motor). Any of these.
  • a DC-DC converter device has a circuit for converting a DC high voltage power source supplied from the vehicle side to a DC low voltage power source (or converting from a DC low voltage power source supplied from the vehicle side to a DC high voltage power source).
  • Patent Document 1 the DC high-voltage power supplied from the vehicle side is supplied to the DC-DC converter device via the high-voltage dedicated connector via the power transmission line.
  • This high voltage dedicated connector is generally provided with a connection detection line that can detect in a circuit whether or not the connector is securely engaged, mainly for safety reasons.
  • connection detection line provided in the high voltage line connector is arranged to determine whether or not the high voltage power line is properly fitted in the connector part, so it is connected to the contact terminal of the high voltage power line in the connector part.
  • the contact terminals of the detection lines are formed close to each other.
  • the high voltage line connector portion must be adjacent to the high voltage power line at a short distance. As a result, noise superimposed on the high voltage power line may be radiated to the connection detection line due to spatial propagation.
  • an object of the present invention is to effectively suppress the noise superimposed on the power line from being mixed into the connection detection line.
  • a power converter includes a connector having wiring for transmitting DC power, and a housing in which the connector is disposed, and the connector determines whether the connector is connected to an external circuit.
  • An opening connected to the connector is formed in the housing, and an annular core formed of a magnetic material is inserted into the opening, and the annular core has a through hole.
  • the wiring and the connection detection wiring are introduced into the casing through the through hole of the annular core.
  • the noise itself superimposed on the power line can be reduced, and the noise superimposed on the power line can be effectively suppressed from being mixed into the connection detection line.
  • FIG. 3 It is an example of a circuit block diagram of the high voltage power supply power line and the connection detection line in the DC-DC converter of this embodiment.
  • a circuit configuration diagram of a high voltage power supply line and a connection detection line which is a configuration example different from FIG.
  • the vehicle side connector 300 which employ
  • the apparatus side connector 200 which employ
  • FIG. 2 is a configuration example of an annular core member 500. This is an example in which the device-side connector 200 and the housing 101 are assembled.
  • FIG. 3 is a perspective view illustrating a configuration example in which the apparatus-side connector 200 and the annular core member 500 are incorporated in the housing 101.
  • FIG. 6 is a perspective view illustrating a configuration example in which a partition member 600 is incorporated into a housing 101.
  • FIG. 5 is a perspective view illustrating a configuration example in which a partition member 600 is incorporated into a housing 101. It is a top view sectional drawing when cut
  • FIG. 9 is a side sectional view when cut along a section B in FIG. 8.
  • FIG. 1 is an example of a circuit configuration diagram of a high voltage power source power line and a connection detection line in the high voltage connector portion of the DC-DC converter apparatus 100 of the present embodiment.
  • a DC-DC converter is described as an example, but the present invention can also be applied to other power conversion devices in which the power line and the connection detection line are included in the same connector.
  • a high voltage connector is described as a representative example, but the voltage does not depend on the voltage.
  • the high-voltage connector described above includes a vehicle-side connector 300 and a device-side connector 200.
  • the high-voltage power supply of several hundred volts supplied from the vehicle side reaches the vehicle-side connector 300 via the high-voltage power supply power wiring 310 in the high-voltage power supply wiring cable 350 as shown in the circuit configuration diagram of FIG. .
  • the DC-DC converter device 100 is provided with a device-side connector 200 that fits into the vehicle-side connector 300.
  • the device-side connector 200 and the DC-DC converter internal power circuit are connected by a high-voltage power supply power line 210.
  • the high-voltage power supply circuit is connected to the DC-DC converter internal power circuit, and high-voltage power is supplied.
  • connection detection lines 220 and 320 for detecting the engagement state of the high voltage connector are provided in the high voltage connector as shown in FIG.
  • the connection detection lines 220 and 320 in FIG. 1 are the simplest example, and use the two-terminal connection detection line and have the following configuration.
  • the connection detection line 320 of the vehicle-side connector 300 has a configuration in which two terminals are short-circuited by a wiring material, and is connected to the other device-side connector 200 and the internal circuit (control circuit etc.) side of the DC-DC converter device.
  • a connection detection signal generation circuit 270 and a connection detection signal detection circuit 280 are provided.
  • the high-voltage power supply power line 310 is connected to the high-voltage power supply power line 210, and the connection detection line 320 is also connected to the connection detection line 220.
  • the connection detection signal detection circuit 280 calculates and detects the electrical signal states of both terminals of the connection detection line 220, whereby the connection state of the high voltage connector can be detected on the DC-DC converter device 100 side.
  • the number of terminals and the circuit method used for connection detection are not limited to the above, and other methods may be used as long as they are electrically detected.
  • FIG. 2 is another configuration example of the circuit configuration of the high voltage power supply line and the connection detection line in the high voltage connector portion of the DC-DC converter apparatus 100.
  • the connection detection signal generation circuit 270 and the connection detection signal detection circuit 280 may be configured in the DC-DC converter apparatus 100 to which the high voltage connector is directly connected as shown in FIG. 1, but as shown in FIG.
  • the detection line 220 may be wired over a plurality of products, and the connection detection signal generation circuit 270 and the connection detection signal detection circuit 280 may be arranged in another device 900 to which the high voltage connector is not directly connected.
  • the high voltage power supply power line 210 and the connection detection line 220 are introduced into the DC-DC converter device 100 from the device-side connector 200.
  • the introduction unit An annular core member 500 is disposed on the surface.
  • FIG. 3 is a configuration example of the vehicle-side connector 300 adopting the circuit configuration of FIG.
  • FIG. 3A is a side view of the vehicle-side connector 300.
  • FIG. 3B is a side view when the vehicle-side connector 300 is viewed from the DC-DC converter device 100 side.
  • the vehicle-side connector 300 connects a high-voltage power supply wiring cable 350 connected to a high-voltage power supply circuit of the vehicle with the device-side connector 200 installed on the DC-DC converter device 100 side, and connects a plurality of electric circuits together.
  • the vehicle-side connector 300 includes two high-voltage power supply wirings 310, two connection detection lines 320, and contact terminals 330 to which the respective wirings are connected.
  • the contact terminal 330 is fitted to a contact terminal 230 of the device-side connector 200 described later to make electrical connection.
  • the high-voltage power supply wiring 310 has one end wired to the contact terminal 330 and the other end wired to the vehicle-side high-voltage power supply circuit. Both ends of the connection detection line 320 are wired to one contact terminal 330. Therefore, four contact terminals 330 are provided in the vehicle-side connector 300.
  • connection detection line 320 is wired as short as possible by a wiring material that is not particularly shielded.
  • FIG. 4 is a configuration example of the device-side connector 200 adopting the circuit configuration of FIG.
  • FIG. 4A is a side view of the device-side connector 200 viewed from the fitting direction with the vehicle-side connector 300.
  • FIG. 4B is a side view of the device-side connector 200.
  • FIG. 4C is a side view when the device-side connector 200 is viewed from the inside of the DC-DC converter device.
  • the device-side connector 200 is connected and fitted to the vehicle-side connector 300, and functions to collectively connect a plurality of electric circuits wired to the vehicle-side connector 300 and a plurality of electric circuits introduced into the DC-DC converter device 100.
  • the apparatus-side connector 200 includes two high-voltage power supply lines 210, two connection detection lines 220, and contact terminals 230 to which the respective wirings are connected.
  • the contact terminal 230 is fitted to the contact terminal 330 of the vehicle-side connector 300 described above to make electrical connection.
  • the high voltage power supply power line 210 has one end wired to the contact terminal 230 and the other end wired to an internal power circuit (not shown) of the DC-DC converter device.
  • One end of each connection detection line 220 is wired to the contact terminal 230, and the other end is wired to the control circuit (not shown) side of the DC-DC converter device.
  • four connection terminals 230 are provided.
  • connection detection line 220 connection detection line 230
  • connection terminal 230 connection detection line 230
  • the conductive metal connector outer shell 290 has a shape to be fitted and connected to the conductive metal connector outer shell 390 of the vehicle-side connector, and is electrically connected. This configuration is aimed at the noise shielding effect by the housing potential in the connector fitting connection portion, but is not essential.
  • connection detection line 220 is wired by a wiring material that is not particularly shielded, but a twisted wire or a shielded wire may be used.
  • the connection detection line 220 is inserted through the tube 240 in order to bundle a plurality of wires or to physically protect the wires, but this is not always necessary.
  • the conductive metal connector outer shell 290 of the device-side connector 200 has a plurality of screw holes 293 for fixing and holding to the housing of the DC-DC converter device, a cylindrical housing introduction portion 291, and this cylinder. And an O-ring 292 that suppresses intrusion of water or the like into the housing from the housing introduction portion 291.
  • FIG. 5 is a configuration example of the annular core member 500.
  • the annular core member 500 includes an annular magnetic core 510 formed of a magnetic material and an exterior member 520.
  • the annular magnetic core 510 is an annular member in which a through hole 511 is formed.
  • the exterior member 520 is an insulating member that covers the outer periphery of the annular magnetic core 510.
  • the annular magnetic core 510 used in the present embodiment is an annular core having an outer shape similar to the cylindrical housing introduction portion 291 of FIG.
  • the outer shape of the core shape is not particularly limited as long as the core shape is a ring shape, the shape of the housing introduction portion 291 of the device-side connector 200, the ease of processing of the housing 101 of the DC-DC converter device 100, and the like. May be selected as appropriate.
  • the periphery of the annular magnetic core 510 is composed of an exterior member 520 for electrically insulating the core material.
  • the exterior member 520A and the exterior member 520B are configured with two pieces, but the exterior member 520 is not limited to the illustrated example, and other methods (for example, resin coating, An insulating film coating method) may be employed.
  • the core material for example, Ni—Zn-based core material
  • the insulation itself may not be necessary, and thus the exterior member 520 itself is not essential.
  • FIG. 6 shows an example in which the apparatus-side connector 200 and the housing 101 are assembled.
  • the housing 101 is provided with a screw hole 193 for fixing and holding the device-side connector 200 and an opening (mounting / wiring hole) 120 that matches the shape of the housing introduction portion 291 of the device-side connector 200.
  • the device-side connector 200 is attached and fixed to the opening 120 from the outside of the housing 101.
  • the housing 101 is formed with an attachment portion protruding from the outer wall surface of the housing 101 in order to attach and fix the apparatus-side connector 200.
  • the attachment portion is provided from the outer wall surface of the housing 101 in order to ensure contact between the O-ring 292 provided in the housing introduction portion 291 of the apparatus-side connector 200 and the inner wall of the opening 120 and to form a screw hole 193. It protrudes. Further, by projecting from the outer wall surface of the housing 101, the storage depth of the annular core member 500 stored in the opening 120 is ensured. Further, the vehicle-side connector 300 can be easily attached, and the assemblability is improved.
  • the device-side connector 200 is attached to the housing 101 by passing a screw through a screw hole 293 formed in the device-side connector 200 and a screw hole 193 formed in the housing 101.
  • the conductive metal connector outer shell 290 of the device-side connector 200 is directly fixed to the housing 101 and thereby connected to the same potential as the housing 101.
  • annular core member 500 and a partition member 600 are attached to the opposite side of the apparatus-side connector 200 across the casing 101, that is, inside the casing 101.
  • FIG. 7A is a perspective view showing a configuration example in which the apparatus-side connector 200 and the annular core member 500 are incorporated in the housing 101.
  • FIG. 7B is a perspective view illustrating a configuration example in which the partition member 600 is incorporated into the housing 101.
  • the device-side connector 200 is attached to the opening 120 formed in the housing 101.
  • the annular core member 500 is attached to the opening 120 from the inside of the housing 101 as shown in FIG. Then, the high-voltage power supply wiring 210 and the connection detection line 220 of the device-side connector 200 are introduced into the housing 101 through the through hole 501 formed in the annular core member 500.
  • the opening 120 inside the casing 101 to which the annular core member 500 is attached is naturally processed according to the outer shape of the annular core member 500, and the annular core member 500 is stored in the casing wall surface. .
  • the entire annular core member 500 is accommodated in the casing wall surface, but a configuration may be adopted in which the entirety is not accommodated and a part protrudes.
  • the common mode noise suppression filter circuit can be configured. That is, as shown in FIG. 1 or FIG. 2, the high-voltage power supply power wiring 210 and the connection detection wiring 220 are arranged on each circuit board inside the DC-DC converter device 100. By passing through the annular core member 500, the common mode noise superimposed on the wiring can be removed at a location closer to the noise mixing point.
  • annular core member 500 of the present embodiment is accommodated in the opening 120 of the housing 101, and the above functions can be realized without increasing the size of the wiring part.
  • FIG. 8 is a perspective view illustrating a configuration example in which the partition member 600 is incorporated into the housing 101.
  • the partition member 600 is disposed at a position facing the annular core member 500 as shown in FIG. 7B in a state where the annular core member 500 is inserted into the opening 120 of the housing 101.
  • the partition member 600 is fixed to the housing 101 in a state where the annular core member 500 is held and fixed to the housing 101.
  • a method for fixing the partition member 600 to the housing 101 for example, as shown in FIG. 8, there is a method such as fastening with screws.
  • FIG. 9A is a top view cross-sectional view when cut along a cross section A in FIG.
  • FIG. 9B is a cross-sectional side view taken along the section B of FIG.
  • the partition member 600 has a partition wall 610, a core fixing portion 620, and a screwing hole 630.
  • the screwing holes 630 are used to fix the partition member 600 to the housing 101.
  • the core fixing portion 620 is formed so that the region other than the region where the through hole 501 of the annular core member 500 is formed overlaps the projected portion of the core fixing portion 620 when viewed from the axial direction of the through hole 501. Is done.
  • the core fixing portion 620 is formed in a convex cross-sectional shape so as to push the annular core member 500 into the opening 120 of the housing 101, and the tip of the convex cross-sectional shape pushes the annular core member 500 toward the outside of the housing 101.
  • Configure as follows That is, as shown in FIG. 9B, the annular core member 500 is pressed and held in the direction of the wall surface of the housing 101 at the tip of the convex cross-sectional shape. Therefore, the annular core member 500 is sandwiched between the inner wall of the opening 120 formed in the housing 101 and the core fixing portion 620.
  • the core fixing portion 620 closes a part of the opening of the through hole 501 so that the opening region is a region on one side and a region on the other side of the core fixing portion 620. And divided into two.
  • the high voltage power supply power wiring 210 and the connection detection wiring 220 that penetrate the annular core member 500 are laid on one side with respect to the core fixing portion 620, and the connection detection wiring 220 is connected to the core fixing portion 620. On the other hand, it is arranged to be laid on the other side.
  • the core fixing unit 620 is a wiring process after the high-voltage power supply wiring 210 and the connection detection wiring 220 pass through the through hole 501 of the annular core member 500 in a state where the partition member 600 is fixed to the housing 101.
  • the shape does not necessarily have a convex cross section, and any shape that can suppress the wiring intersection and can fix the annular core member 500 may be used.
  • the partition wall 610 of the partition member 600 protrudes from a part of the core fixing portion 620 toward the outer side of the housing 101.
  • the partition wall 610 protrudes into the through hole 501 of the annular core member 500 fixedly held in the opening 120 of the housing 101. Thereby, the space of the through-hole 501 of the annular core member 500 is divided into two spaces, one space and the other space of the partition wall 610.
  • the high voltage power supply wiring 210 is laid in a space on one side with respect to the partition wall 610 in the space in the through hole 501 of the annular core member 500.
  • the connection detection wiring 220 is laid in the space on the other side with respect to the partition wall 610 in the space in the through hole 501 of the annular core member 500.
  • the high voltage power supply wiring 210 laid on the right side with respect to the casing opening 120 is also arranged on the right side in the through hole 501 of the annular core member 500, and the casing opening 120
  • the connection detection wiring 220 laid on the left side is also arranged on the left side in the through hole 501 of the annular core member 500.
  • the high-voltage power supply power wiring 210 is positioned to the right and the connection detection wiring 220 is positioned to the left by the core fixing portion 620 formed in a convex cross-sectional shape.
  • the core fixing portion 620 and the partition wall 610 divide the space in the left-right direction, but naturally the division direction is not limited to the left-right direction, and should be changed according to the wiring laying direction. Further, the number of divided spaces is not necessarily divided into two, and may be changed depending on the number of wires, and the wall surface shape is not essential as long as the partition shape can be maintained.
  • the partition member 600 may be comprised with an insulator, a conductor may be sufficient and it may comprise it combining an insulator and a conductor. If the partition wall 610 of the partition member 600 and the core fixing portion 620 having a convex cross section are used as conductors and the same reference potential (GND potential) as that of the housing 101 is applied, the partition shape portion can obtain an electrical shielding effect. This is more effective for suppressing noise contamination due to propagation.
  • the annular core member 500 is attached from the inside of the housing 101, but may be attached from the outside of the housing 101. That is, before attaching the device-side connector 200, the annular core member 500 is inserted into the opening 120 from the outside of the housing 101, and then the device-side connector 200 is attached. Even in this case, the same effect can be obtained by changing a part of the convex cross-sectional shape wall of the partition member 600 described above.

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Abstract

　電力線に重畳するノイズが接続検知線に輻射混入することを効果的に抑制する。　直流電力を伝達する配線２１０を有するコネクタ２００と、前記コネクタが配設される筐体１０１と、を備え、前記コネクタは、当該コネクタが外部回路と接続されているかどうかを検知する接続検知配線２２０を有し、前記筐体には、前記コネクタと繋がる開口部１２０が形成され、前記開口部には、磁性体により形成される環状コア５００が挿入され、前記環状コアは、貫通孔が形成される環状部材であり、前記配線及び前記接続検知配線は、前記環状コアの前記貫通孔を通って前記筐体内部に導入される。

Description

電力変換装置
　本発明は電力変換装置に関し、特に電動モータによって駆動動力を得る自動車に搭載される電力変換装置に関する。
　電動モータによって駆動動力を得る自動車（いわゆる電気自動車やハイブリッド車）は、動力として使用する電動モータを駆動するための高電圧蓄電池と、車両のライトやラジオなどの補機類を作動させるための低電圧蓄電池を備えている。このような車両には、高電圧蓄電池から低電圧蓄電池への電力変換、または低電圧蓄電池から高電圧蓄電池への電力変換を行う電力変換装置（ＤＣ－ＤＣコンバータ装置）が搭載されている。なお、ＤＣ－ＤＣコンバータ装置は独立した一個の筐体に収納されるものや、車両に必要となる他の装置（例えば電動モータを駆動するためのインバータ装置など）と同一筐体に収納されるものの何れをも含む。
　一般的にＤＣ－ＤＣコンバータ装置は、車両側より供給される直流高電圧電源から直流低電圧電源に変換（又は車両側より供給される直流低電圧電源から直流高電圧電源に変換）する回路を持つ（特許文献１）。このようなＤＣ－ＤＣコンバータにおいては、車両側から供給される直流高電圧電源は電力伝送線を経由し、高電圧専用コネクタを介してＤＣ－ＤＣコンバータ装置に供給される。この高電圧専用コネクタには、主に安全上の理由から、コネクタが確実に勘合されているか否かを、回路的に検出できるような接続検知線が設けられるのが一般的である。
特開２０１２－１７８９３７号公報
　ところで、高電圧線用コネクタに設けられる接続検知線は高電圧電力線がコネクタ部で正常に勘合されているか否かを判定するために配置されるので、コネクタ部において高電圧電力線の接点端子と接続検知線の接点端子は互いに近接して形成される。その構成上、高電圧線用コネクタ部において高電圧電力線と近距離で隣接併走する構成とならざるを得ない。その結果、高電圧電力線に重畳するノイズが空間伝播により接続検知線に輻射するおそれがある。
　係る課題に鑑み、本発明は、電力線に重畳するノイズが接続検知線に輻射混入することを効果的に抑制することを目的とする。
　本発明に係る電力変換装置は、直流電力を伝達する配線を有するコネクタと、前記コネクタが配設される筐体と、を備え、前記コネクタは、当該コネクタが外部回路と接続されているかどうかを検知する接続検知配線を有し、前記筐体には、前記コネクタと繋がる開口部が形成され、前記開口部には、磁性体により形成される環状コアが挿入され、前記環状コアは、貫通孔が形成される環状部材であり、前記配線及び前記接続検知配線は、前記環状コアの前記貫通孔を通って前記筐体内部に導入される。
　本発明によれば、電力線に重畳するノイズ自体を低減すると共に、電力線に重畳するノイズが接続検知線に輻射混入することを効果的に抑制できる。
本実施形態のＤＣ－ＤＣコンバータにおける高電圧電源電力線と接続検知線の回路構成図例である。 本実施形態のＤＣ－ＤＣコンバータにおける高電圧電源電力線と接続検知線の回路構成図例で、図１とは異なる構成例である。 図１の回路構成を採用した車両側コネクタ３００の構成例である。 車両側コネクタ３００を図３（ａ）とは異なる方向から見た図である。 図１の回路構成を採用した装置側コネクタ２００の構成例である。 装置側コネクタ２００を図４（ａ）とは異なる方向から見た図である。 装置側コネクタ２００を図４（ｂ）とはさらに異なる方向から見た図である。 環状コア部材５００の構成例である。 装置側コネクタ２００と筐体１０１の組込み例である。 装置側コネクタ２００と環状コア部材５００を筐体１０１に組み込む構成例を示す斜視図である。 仕切り部材６００を筐体１０１に組み込む構成例を示す斜視図である。 仕切り部材６００を筐体１０１へ組み込む構成例を示す斜視図である。 図８の断面Ａで切断したときの上面視断面図である。 図８の断面Ｂで切断したときの側面視断面図である。
　以下、図面を参照して、本発明に係る電力変換装置の実施の形態について説明する。なお、各図において同一要素については同一の符号を記し、重複する説明は省略する。
　図１は、本実施形態のＤＣ－ＤＣコンバータ装置１００の高電圧コネクタ部における、高電圧電源電力線と接続検知線の回路構成図の例である。なお、以下の記述においてはＤＣ－ＤＣコンバータを例として記述を行うが、電力線と接続検知線が同一コネクタ内に含まれる他の電力変換装置でも適用可能である。また、実施例では代表例として高電圧コネクタについての記述を行うが、電圧の如何にはよらない。
　前述の高電圧コネクタは、車両側コネクタ３００と装置側コネクタ２００により構成される。車両側より供給される数百Ｖの高電圧電源は、図１の回路構成図例の様に、高電圧電源配線ケーブル３５０内の高電圧電源電力配線３１０を経由し、車両側コネクタ３００に至る。ＤＣ－ＤＣコンバータ装置１００には、車両側コネクタ３００に勘合する装置側コネクタ２００が設けられる。装置側コネクタ２００とＤＣ－ＤＣコンバータ内部電力回路は、高電圧電源電力線２１０によって接続されている。車両側コネクタ３００と装置側コネクタ２００の両コネクタが正常勘合する事で高電圧電源回路がＤＣ－ＤＣコンバータ内部電力回路と接続され、高電圧電力が供給される。
　また、この高電圧コネクタ内部には、図１の様に、高電圧コネクタの勘合状態を検出するための複数の接続検知線２２０、３２０が設けられる。図１の接続検知線２２０、３２０は最も簡単な例であり、２端子の接続検知線を用い、以下の構成からなる。車両側コネクタ３００の接続検知線３２０は、配線材により２端子間が短絡されている構成であり、もう一方の装置側コネクタ２００及びＤＣ－ＤＣコンバータ装置の内部回路（制御回路等）側には、接続検知信号発生回路２７０と接続検知信号検出回路２８０が設けられる。
　ここで、車両側コネクタ３００と装置側コネクタ２００が正常勘合すれば、高電圧電源電力線３１０が高電圧電源電力線２１０と接続されると共に、接続検知線３２０も接続検知線２２０と接続される。そして接続検知線２２０の両端子の電気信号状態を接続検知信号検出回路２８０で演算検出することで、ＤＣ－ＤＣコンバータ装置１００側において高電圧コネクタの接続状態を検出する事が可能となる。なお、接続検知に用いる端子数や回路方式は上記に限らず、電気的に検出する構成であれば他の方式でも構わない。
　図２は、ＤＣ－ＤＣコンバータ装置１００の高電圧コネクタ部における、高電圧電源電力線と接続検知線の回路構成の他の構成例である。接続検知信号発生回路２７０と接続検知信号検出回路２８０は、図１の様に高電圧コネクタが直接接続されるＤＣ－ＤＣコンバータ装置１００内に構成しても良いが、図２のように、接続検知線２２０を複数製品にわたって配線し、高電圧コネクタが直接接続されない他装置９００に、接続検知信号発生回路２７０と接続検知信号検出回路２８０を配置する構成としても構わない。
　図１及び図２において、高電圧電源電力線２１０及び接続検知線２２０は、装置側コネクタ２００からＤＣ－ＤＣコンバータ装置１００の中に導入されるが、本実施形態の電力変換装置では、当該導入部に環状コア部材５００を配置する。以降、図面を用いて図１の回路構成を詳細に説明していく。
　図３は、図１の回路構成を採用した車両側コネクタ３００の構成例である。図３（ａ）は、車両側コネクタ３００の側視図である。図３（ｂ）は、車両側コネクタ３００をＤＣ－ＤＣコンバータ装置１００側から見たときの側視図である。
　車両側コネクタ３００は、車両の高電圧電源回路と接続される高電圧電源配線ケーブル３５０をＤＣ－ＤＣコンバータ装置１００側に設置される装置側コネクタ２００と接続勘合し、複数の電気回路を一括接続する機能を有する。
　車両側コネクタ３００は、当該コネクタ内部に、２本の高電圧電源電力配線３１０と、２本の接続検知線３２０と、前記それぞれの配線が接続される接点端子３３０を備える。ここで接点端子３３０は、後述する装置側コネクタ２００の接点端子２３０に対して嵌合し、電気的接続をなすものである。
　高電圧電源電力配線３１０は、各々の一端が接点端子３３０に配線され、他端が車両側の高電圧電源回路に配線される。接続検知線３２０は、その両端が各々１個の接点端子３３０に配線される。したがって、車両側コネクタ３００内には、４個の接点端子３３０が設けられる。
　これらの高電圧電源電力配線３１０、接続検知線３２０、接点端子３３０は、筒状の導電金属製コネクタ外殻３９０内に収納される。ここで、本実施例においては、接続検知線３２０は特にシールド処理等はなされていない配線材で最短配線される。
　図４は、図１の回路構成を採用した装置側コネクタ２００の構成例である。図４（ａ）は、装置側コネクタ２００を車両側コネクタ３００との嵌合方向から見た側視図である。図４（ｂ）は、装置側コネクタ２００の側視図である。図４（ｃ）は、装置側コネクタ２００をＤＣ－ＤＣコンバータ装置内部側から見たときの側視図である。
　装置側コネクタ２００は、車両側コネクタ３００と接続勘合し、車両側コネクタ３００に配線される複数の電気回路と、ＤＣ－ＤＣコンバータ装置１００の内部に導入する複数の電気回路とを一括接続する機能を有する。
　装置側コネクタ２００は、当該コネクタ内部に、２本の高電圧電源電力線２１０と、２本の接続検知線２２０と、前記それぞれの配線が接続される接点端子２３０を備える。ここで接点端子２３０は、前述の車両側コネクタ３００の接点端子３３０に対して嵌合し、電気的接続をなすものである。
　高電圧電源電力線２１０は、各々の一端が接点端子２３０に配線され、他端がＤＣ－ＤＣコンバータ装置の内部電力回路（不図示）へ配線される。接続検知線２２０は、各々の一端が接点端子２３０に配線され、他端がＤＣ－ＤＣコンバータ装置の制御回路（不図示）側へ配線される。本実施形態においては、高電圧電源電力線２１０と接続検知線２２０がそれぞれ２本ずつ設けられるため、４個の接続端子２３０が設けられる。
　これらの高電圧電源電力線２１０、接続検知線２２０、接続端子２３０は、筒状の導電金属製コネクタ外殻２９０内に収納される。導電金属製コネクタ外殻２９０は、車両側コネクタの導電金属製コネクタ外殻３９０と勘合接続する形状となっており、電気的に接続されている。この構成は、コネクタ勘合接続部において、筐体電位によるノイズ遮蔽効果を狙ったものであるが、必須ではない。
　なお、本実施例においては、接続検知線２２０は特にシールド処理等はなされていない配線材で配線されるが、ツイスト線やシールド線を使用しても構わない。また、図例で接続検知線２２０は、線材を複数本纏めるため、あるいは線材を物理的に保護するため、チューブ２４０に挿通されているが、これは必ずしも必要ではない。
　装置側コネクタ２００の導電金属製コネクタ外殻２９０には、ＤＣ－ＤＣコンバータ装置の筐体へ固定保持するための複数のネジ止め用穴２９３と、円筒状の筐体導入部２９１と、この円筒状の筐体導入部２９１から筐体内部への水などの侵入を抑止するＯリング２９２と、が設けられている。
　図５は、環状コア部材５００の構成例である。環状コア部材５００は、磁性体により形成される環状磁性体コア５１０と、外装部材５２０とで構成される。環状磁性体コア５１０は、貫通孔５１１が形成される環状部材である。外装部材５２０は、環状磁性体コア５１０の外周囲を覆う絶縁部材である。
　本実施形態で用いる環状磁性体コア５１０は、図４の円筒状の筐体導入部２９１に類似した外形形状である、円環形状のコアを用いている。しかしながら、コア形状は環状であれば特にその外形形状を制限するものではなく、装置側コネクタ２００の筐体導入部２９１の形状や、ＤＣ－ＤＣコンバータ装置１００の筐体１０１の加工しやすさなどを考慮して適宜選択すればよい。
　環状磁性体コア５１０の周囲は、コア材を電気的に絶縁するための外装部材５２０で構成される。図例では、外装部材５２０Ａと外装部材５２０Ｂの２個で構成されているが、外装部材５２０は図例に限らず、環状磁性体コア５１０の絶縁が可能なら他の方法（たとえば樹脂コーティングや、絶縁膜塗装などの方法）を採用しても良い。なお、コア材料(例えばＮｉ－Ｚｎ系コア材料など)によっては絶縁自体が不要になる場合もあるため、外装部材５２０自体は必須ではない。
　図６は、装置側コネクタ２００と筐体１０１の組込み例である。筐体１０１には、装置側コネクタ２００を固定保持するためのネジ穴１９３と、装置側コネクタ２００の筐体導入部２９１の形状に合わせた開口部（取付・配線用孔）１２０が設けられる。装置側コネクタ２００は、筐体１０１外側方向から、開口部１２０に取付固定される。
　筐体１０１には、装置側コネクタ２００を取付固定するために、筐体１０１外壁面から突出した取り付け部が形成される。当該取り付け部は、装置側コネクタ２００の筐体導入部２９１に設けられたＯリング２９２と開口部１２０内壁との接触を確保するため、またネジ穴１９３を形成するため、筐体１０１外壁面から突出している。また、筐体１０１外壁面から突出させることで、開口部１２０に収納される環状コア部材５００の収納深さが確保される。また、車両側コネクタ３００の取り付けがし易くなり、組立性が向上する。
　装置側コネクタ２００は、当該装置側コネクタ２００に形成されたネジ穴２９３及び筐体１０１に形成されたネジ穴１９３にネジを貫通させることで、筐体１０１に取り付けられる。装置側コネクタ２００の導電金属製コネクタ外殻２９０は、筐体１０１に直接固定されることにより、筐体１０１と同電位に接続される。
　一方、図７及び図８で後述するように、筐体１０１を挟んで装置側コネクタ２００の反対側、すなわち筐体１０１内側には、環状コア部材５００と仕切り部材６００が取り付けられる。
　図７（ａ）は、装置側コネクタ２００と環状コア部材５００を筐体１０１に組み込む構成例を示す斜視図である。図７（ｂ）は、仕切り部材６００を筐体１０１に組み込む構成例を示す斜視図である。
　図６で説示したように、装置側コネクタ２００は、筐体１０１に形成された開口部１２０に取り付けられる。一方環状コア部材５００は、図７（ａ）に示されるように、筐体１０１の内部側から、当該開口部１２０に取り付けられる。そして、装置側コネクタ２００の高電圧電源電力配線２１０と接続検知線２２０は、環状コア部材５００に形成された貫通孔５０１を通って筐体１０１内部に導入される。
　環状コア部材５００が取り付けられる筐体１０１内側の開口部１２０は当然、環状コア部材５００の外形形状に合わせて形状加工されており、環状コア部材５００は筐体壁面内へ収納される状態になる。図７（ｂ）に示す図例では、筐体壁面内に環状コア部材５００全体が収納される構成となっているが、全体が収納されず一部がはみ出る構成であっても構わない。
　このように構成することで、装置側コネクタ２００からの高電圧電源電力配線２１０と接続検知配線２２０が環状コア部材５００の貫通孔５０１を通過するため、各々の配線回路に対してコモンモードチョークコイルとして機能するようになり、コモンモードノイズ抑制用フィルタ回路を構成することが出来る。即ち、高電圧電源電力配線２１０と接続検知配線２２０はそれぞれ、図１あるいは図２に示されるように、ＤＣ－ＤＣコンバータ装置１００内部の各回路基板へ配設されるが、これらの配線を一括して環状コア部材５００を貫通させることで、配線に重畳するコモンモードノイズをよりノイズ混入点に近い場所で除去することが可能となる。
　また、本実施形態の環状コア部材５００は、筐体１０１の開口部１２０に収納されており、配線部を大型化させることなく、上記の機能を実現することができる。
　図８は、仕切り部材６００を筐体１０１へ組み込む構成例を示す斜視図である。仕切り部材６００は、環状コア部材５００が筐体１０１の開口部１２０に挿入された状態で、図７（ｂ）のように、当該環状コア部材５００と対向する位置に配置される。仕切り部材６００は、環状コア部材５００を筐体１０１へ保持固定した状態で、筐体１０１に固定される。仕切り部材６００の筐体１０１への固定方法としては、例えば図８に示されるように、ネジによる締結などの方法がある。
　図９（ａ）は、図８の断面Ａで切断したときの上面視断面図である。図９（ｂ）は、図８の断面Ｂで切断したときの側面視断面図である。
　仕切り部材６００は、仕切り壁６１０と、コア固定部６２０と、ネジ止め用穴６３０を有する。ネジ止め用穴６３０は、仕切り部材６００を筐体１０１へ固定するのに用いられる。コア固定部６２０は、貫通孔５０１の軸線方向から見たときに、環状コア部材５００の貫通孔５０１が形成されている領域以外の領域と、当該コア固定部６２０の射影部が重なるように形成される。
　またコア固定部６２０は、環状コア部材５００を筐体１０１の開口部１２０へ押し込むように、凸断面形状に形成され、凸断面形状先端が環状コア部材５００を筐体１０１の外側に向かって押すように構成する。即ち、図９（ｂ）に示されるように、当該凸断面形状の先端部において、環状コア部材５００を筐体１０１の壁面方向に押しつけて固定保持している。よって、環状コア部材５００は、筐体１０１に形成された開口部１２０の内壁とコア固定部６２０の間に挟持される。
　また、コア固定部６２０は、図９（ａ）に示されるように、貫通孔５０１の開口の一部を塞ぐことで、当該開口領域をコア固定部６２０の一方側の領域と他方側の領域とに２分割している。環状コア部材５００を貫通する高電圧電源電力配線２１０と接続検知配線２２０は、高電圧電源電力配線２１０がコア固定部６２０に対して一方側に敷設され、接続検知配線２２０がコア固定部６２０に対して他方側に敷設されるように配置される。
　このように、コア固定部６２０は、仕切り部材６００を筐体１０１に固定した状態において、高電圧電源電力配線２１０及び接続検知配線２２０が環状コア部材５００の貫通孔５０１を通過した後の配線過程で各々交差することを抑制するように、形成される。なお、形状は必ずしも凸断面である必要はなく、配線交差が抑制でき、且つ環状コア部材５００を固定できる形状であれば良い。
　仕切り部材６００の仕切り壁６１０は、コア固定部６２０の一部から筐体１０１の外側方向に向かって突出している。仕切り壁６１０は、筐体１０１の開口部１２０に固定保持された環状コア部材５００の貫通孔５０１内に突出している。これにより、環状コア部材５００の貫通孔５０１の空間は、仕切り壁６１０の一方側の空間と他方側の空間とに２分割される。
　図９（ａ）に示されるように、高電圧電源電力配線２１０は、環状コア部材５００の貫通孔５０１内の空間のうち、仕切り壁６１０に対して一方側の空間に敷設される。一方、接続検知配線２２０は、環状コア部材５００の貫通孔５０１内の空間のうち、仕切り壁６１０に対して他方側の空間に敷設される。このように、高電圧電源電力配線２１０と接続検知配線２２０を、分割配置しうるような仕切り壁６１０を設けることで、環状コア部材５００の貫通孔５０１内部での配線交差を抑制することができる。
　このように構成することで、筐体開口部１２０に対して右側に敷設される高電圧電源電力配線２１０は、環状コア部材５００の貫通孔５０１内においても右側に配置され、筐体開口部１２０に対して左側に敷設される接続検知配線２２０は、環状コア部材５００の貫通孔５０１内においても左側に配置される。更に筐体開口部１２０の配線引き出し部において、凸断面形状に形成されたコア固定部６２０により、高電圧電源電力配線２１０は右方向に向かい、接続検知配線２２０は左方向に向かうように位置決めされる。
　これによりコモンモードフィルタ通過後に高電圧電源電力配線２１０と接続検知配線２２０が隣接交差することを防止し、両配線間の空間距離を一定量確保することが可能となるため、空間伝播によるノイズ混入を抑制できる。
　なお、上記においてコア固定部６２０及び仕切り壁６１０は、左右方向に空間を分割しているが、当然ながら分割方向は左右に限定せず、配線敷設方向によって変えるべきものである。また、分割空間数は必ずしも２分割とは限らず、配線数によって変えても良いし、仕切り形状が保てれば壁面形状は必須ではない。
　なお、仕切り部材６００は絶縁体で構成してもよいが、導体であっても良いし、絶縁体と導体を複合して構成してもよい。仕切り部材６００の仕切り壁６１０及び凸断面形状のコア固定部６２０を導体とし、筐体１０１と同じ基準電位(ＧＮＤ電位)を与えれば、仕切り形状部は電気的な遮蔽効果を得られるため、空間伝播によるノイズ混入抑制には更に効果的である。
　なお、本実施例では環状コア部材５００は筐体１０１内側から取り付けているが、筐体１０１外側から取り付ける構成でもよい。即ち、装置側コネクタ２００を取り付ける前に、環状コア部材５００を筐体１０１外側方向から、開口部１２０に挿入し、その後に装置側コネクタ２００を取付ける方法である。この場合でも、前述の仕切り部材６００の凸断面形状壁を一部変更して対応すれば、同様の効果が得られる。
  １００　ＤＣ－ＤＣコンバータ装置
  １０１　筐体
  １２０　開口部
  １９３　ネジ穴
  ２００　装置側コネクタ
  ２１０　高電圧電源電力配線
  ２２０　接続検知線
  ２３０　接点端子
  ２４０　チューブ
  ２７０　接続検知信号発生回路
  ２８０　接続検知信号検出回路
  ２９０　導電金属製コネクタ外殻
  ２９１　筐体導入部
  ２９２　Ｏリング
  ２９３　ネジ止め用穴
  ３００　車両側コネクタ
  ３１０　高電圧電源電力配線
  ３２０　接続検知線
  ３３０　接点端子
  ３５０　高電圧電源配線ケーブル
  ３９０　導電金属製コネクタ外殻
  ５００　環状コア部材
  ５０１　貫通孔
  ５１０　環状磁性体コア
  ５１１　貫通孔
  ５２０　外装部材
  ６００　仕切り部材
  ６１０　仕切り壁
  ６２０　コア固定部
  ６３０　ネジ止め用穴
  ９００　他装置

Claims (4)

  1. 　直流電力を伝達する配線を有するコネクタと、
    　前記コネクタが配設される筐体と、を備え、
    　前記コネクタは、当該コネクタが外部回路と接続されているかどうかを検知する接続検知配線を有し、
    　前記筐体には、前記コネクタと繋がる開口部が形成され、
    　前記開口部には、磁性体により形成される環状コアが挿入され、
    　前記環状コアは、貫通孔が形成される環状部材であり、
    　前記配線及び前記接続検知配線は、前記環状コアの前記貫通孔を通って前記筐体内部に導入される電力変換装置。
  2. 　請求項１に記載された電力変換装置であって、
    　仕切り部材を備え、
    　前記仕切り部材は、前記環状コアの前記貫通孔の軸線上に配置され、
    　前記仕切り部材は、前記貫通孔の開口の一部を塞ぐことで当該開口領域を分割し、
    　前記配線は、前記貫通孔を通り前記仕切り部材に対して一方側に敷設され、
    　前記接続検知配線は、前記貫通孔を通り前記仕切り部材に対して他方側に敷設される電力変換装置。
  3. 　請求項２に記載された電力変換装置であって、
    　前記仕切り部材は、コア固定部を有し、
    　前記コア固定部は、前記貫通孔の軸線方向から見たときに、前記環状コアの前記貫通孔が形成されている領域以外の領域と当該コア固定部の射影部が重なるように配置され、
    　前記環状コアは、前記開口部の内壁と前記コア固定部の間に挟持される電力変換装置。
  4. 　請求項２又は３に記載の電力変換装置であって、
    　前記仕切り部材は、前記環状コアの前記貫通孔内部まで突出する仕切り壁を有し、
    　前記配線は、前記貫通孔内部において、前記仕切り壁に対して一方側に敷設され、
    　前記接続検知配線は、前記貫通孔内部において、前記仕切り壁に対して他方側に敷設される電力変換装置。
PCT/JP2014/061001 2013-06-10 2014-04-18 電力変換装置 Ceased WO2014199725A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2015522624A JPWO2014199725A1 (ja) 2013-06-10 2014-04-18 電力変換装置
EP14811732.8A EP3010102B1 (en) 2013-06-10 2014-04-18 Power conversion device
US14/893,392 US9561728B2 (en) 2013-06-10 2014-04-18 Power conversion device
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CN105247749B (zh) 2017-11-17
EP3010102A4 (en) 2017-02-15
US20160114691A1 (en) 2016-04-28
CN105247749A (zh) 2016-01-13
US9561728B2 (en) 2017-02-07
EP3010102B1 (en) 2022-06-08
EP3010102A1 (en) 2016-04-20

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