WO2017188385A1 - 鉄道車両の電力変換装置 - Google Patents

鉄道車両の電力変換装置 Download PDF

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Publication number
WO2017188385A1
WO2017188385A1 PCT/JP2017/016747 JP2017016747W WO2017188385A1 WO 2017188385 A1 WO2017188385 A1 WO 2017188385A1 JP 2017016747 W JP2017016747 W JP 2017016747W WO 2017188385 A1 WO2017188385 A1 WO 2017188385A1
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WIPO (PCT)
Prior art keywords
receiving member
heat receiving
heat
coolant
power conversion
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PCT/JP2017/016747
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English (en)
French (fr)
Inventor
怜子 鈴木
Original Assignee
株式会社東芝
東芝インフラシステムズ株式会社
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Filing date
Publication date
Application filed by 株式会社東芝, 東芝インフラシステムズ株式会社 filed Critical 株式会社東芝
Priority to CN201780025369.XA priority Critical patent/CN109070905A/zh
Priority to EP17789667.7A priority patent/EP3450278A4/en
Priority to KR1020187029437A priority patent/KR102108085B1/ko
Publication of WO2017188385A1 publication Critical patent/WO2017188385A1/ja
Priority to US16/170,488 priority patent/US20190069450A1/en

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20927—Liquid coolant without phase change
    • 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
    • B60L53/302—Cooling of charging equipment
    • 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
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B60L1/02—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits
    • 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
    • B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for 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
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled 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
    • B60L53/20—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 converters located in the vehicle
    • 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
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C3/00—Electric locomotives or railcars
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/42—Fillings or auxiliary members in containers or encapsulations selected or arranged to facilitate heating or cooling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
    • H01L23/473—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing liquids
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20845—Modifications to facilitate cooling, ventilating, or heating for automotive electronic casings
    • H05K7/20863—Forced ventilation, e.g. on heat dissipaters coupled to components
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20845—Modifications to facilitate cooling, ventilating, or heating for automotive electronic casings
    • H05K7/20872—Liquid coolant without phase change
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
    • 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
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail 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
    • B60L2210/00—Converter types
    • B60L2210/30—AC to DC converters
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/52—Drive Train control parameters related to converters
    • B60L2240/525—Temperature of converter or components thereof
    • 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
    • B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/30—Railway vehicles
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20136—Forced ventilation, e.g. by fans
    • H05K7/20172—Fan mounting or fan specifications
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
    • H05K7/20263—Heat dissipaters releasing heat from coolant
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
    • H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
    • 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
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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
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    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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    • 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
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    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Definitions

  • Embodiments of the present invention relate to a railway vehicle power conversion device.
  • railway vehicles are equipped with power converters that convert AC power and DC power.
  • a main circuit section such as an inverter or a converter is configured by semiconductor elements such as IGBTs (Insulated Gate Bipolar Transistors) and diodes.
  • IGBTs Insulated Gate Bipolar Transistors
  • this type of power conversion device includes an auxiliary circuit unit having a reactor and a resistor for suppressing harmonics and improving power factor.
  • the main circuit unit of the power converter Since the semiconductor element of the main circuit unit of the power converter generates a high temperature during a switching operation or the like, the main circuit unit is often cooled by circulating a coolant.
  • a semiconductor element In a power conversion apparatus that cools a main circuit portion with a coolant, a semiconductor element is attached to a heat receiving member (heat sink) having a heat exchange portion with the coolant, and the heat receiving member is connected to a coolant circulation circuit.
  • the cooling liquid circulation circuit circulates the cooling liquid stored in the reservoir by a pump, and dissipates heat taken from the semiconductor element to be cooled to the outside by a heat exchanger.
  • the main circuit part having the semiconductor element is arranged in a sealed room sealed from the outside of the vehicle, and the heat exchanger, the reactor and the auxiliary circuit part having resistance are arranged in a non-sealed room (wind tunnel) not sealed from the outside of the car. .
  • the main circuit portion having the semiconductor elements can be efficiently cooled by the coolant circulation circuit.
  • the reactor and the resistor, which are heat-generating parts of the auxiliary circuit section are cooled by air cooling in the non-sealed chamber, the mounted parts of the auxiliary circuit section are easily contaminated by the outdoor air, and the air-cooling structure is easily increased in size. Therefore, in such a power conversion device, there is a concern that the performance may be degraded and the overall size of the device may be increased due to the use of the mounting components of the auxiliary circuit unit over time.
  • the problem to be solved by the present invention is to provide a power conversion device for a railway vehicle that can avoid a performance degradation and an increase in the size of the entire device due to the use of mounting components of an auxiliary circuit portion over time.
  • the power conversion device for a railway vehicle includes a semiconductor element, a first heat receiving member, a reactor and a resistor, a second heat receiving member, a coolant circulation circuit, and a heat exchanger.
  • the semiconductor element constitutes a main circuit unit for power conversion.
  • a semiconductor element is attached to the first heat receiving member.
  • the reactor and the resistor constitute an auxiliary circuit unit for power conversion.
  • a reactor and a resistor are attached to the second heat receiving member.
  • the coolant circulation circuit causes the coolant to flow through the first heat receiving member and the second heat receiving member.
  • the heat exchanger performs heat exchange of the coolant.
  • the schematic diagram which looked at the railway vehicle carrying the power converter device of 1st Embodiment from the side The schematic diagram which looked at the power converter device of 2nd Embodiment from the side.
  • the schematic diagram which looked at the power converter device of 3rd Embodiment from the side The schematic diagram which looked at the power converter device of 4th Embodiment from the side.
  • the schematic diagram which looked at the power converter device of 5th Embodiment from the side The schematic diagram which looked at the railway vehicle carrying the power converter device of 1st Embodiment from the side.
  • the schematic diagram which looked at the power converter device of 2nd Embodiment from the side The schematic diagram which looked at the power converter device of 3rd Embodiment from the side.
  • the schematic diagram which looked at the power converter device of 4th Embodiment from the side The schematic diagram which looked at the power converter device of 5th Embodiment from the side.
  • Drawing 1 is a mimetic diagram which looked at rail car 200 carrying power converter 1 of a 1st embodiment from the side.
  • wheels 305 that roll on the rail 304 are driven by a motor 303.
  • the motor 303 and the wheel 305 are installed below the vehicle body 201 via a carriage 302.
  • a pantograph 301 is installed on the upper part of the vehicle body 201.
  • the railway vehicle 200 is supplied with power from the overhead line 300 via the pantograph 301.
  • the railway vehicle 200 has the power conversion device 1 mounted inside the vehicle body 201.
  • the power conversion apparatus 1 converts, for example, AC power supplied from the overhead line 300 via the pantograph 301 to DC, and then converts the AC power again to desired AC power and supplies the power to the motor 303 for driving the vehicle.
  • the power conversion device 1 houses a circuit for power conversion and a cooling mechanism in a housing 11.
  • the inside of the housing 11 is divided into a sealed chamber 9 sealed from the outside of the vehicle and a non-sealed chamber 15 (for example, a wind tunnel) that is not sealed from the outside of the vehicle.
  • the non-sealed chamber 15 is configured to communicate with the outside of the vehicle as appropriate through a vent (not shown) or the like so that heat can be exchanged between the outside air and the non-sealed chamber 15.
  • a main circuit section 2 such as an inverter or a converter is constituted by a semiconductor element 2a such as an IGBT (Insulated Gate Bipolar Transistor) or a diode.
  • the main circuit unit 2 is attached to a main circuit heat sink 3A which is a first heat receiving member.
  • the main circuit heat sink 3A has a heat exchanging portion 3Aa into which a coolant is introduced from the outside.
  • the heat exchange unit 3Aa performs heat exchange between the heat exchange unit 3Aa and the coolant.
  • the heat exchange part 3Aa of the main circuit heat sink 3A is connected to the coolant circulation circuit 20.
  • the coolant stored in the reservoir tank 8 is circulated by the power of the pump 10.
  • the heat exchanging section 3 ⁇ / b> Aa of the main circuit heat sink 3 ⁇ / b> A is connected to the downstream side of the pump 10.
  • the upstream side of the reservoir tank 8 of the coolant circulation circuit 20 is connected to the heat exchanger 5 (radiator) disposed in the non-sealed chamber 15.
  • the heat exchanger 5 exchanges heat between the coolant returned toward the reservoir tank 8 and the air (outside air) in the non-sealed chamber 15.
  • the heat of the coolant flowing through the coolant circulation circuit 20 is radiated in the heat exchanger 5.
  • a blower 12 that can blow forced air to the heat exchanger 5 is installed.
  • the power converter device 1 has an auxiliary circuit unit 21 for suppressing harmonics, improving power factor, and the like.
  • the auxiliary circuit unit 21 includes a reactor 13 and a resistor 14.
  • the reactor 13 and the resistor 14 generate heat when energized, although the amount of heat generated is smaller than that of the semiconductor element 2a of the main circuit portion 2.
  • the auxiliary circuit unit 21 is attached to the auxiliary circuit heat sink 3B which is the second heat receiving member.
  • the auxiliary circuit heat sink 3B has a heat exchange part 3Ba into which a coolant is introduced from the outside.
  • the heat exchange unit 3Ba performs heat exchange between the heat exchange unit 3Ba and the coolant.
  • the heat exchange unit 3Ba of the auxiliary circuit heat sink 3B is connected in series to the downstream side of the main circuit heat sink 3A in the coolant circulation circuit 20.
  • a main circuit heat sink 3 ⁇ / b> A to which the main circuit unit 2 is attached and an auxiliary circuit heat sink 3 ⁇ / b> B to which the auxiliary circuit unit 21 is attached are disposed in the sealed chamber 9 together with the reservoir tank 8 and the pump 10.
  • the coolant circulation circuit 20 only the heat exchanger 5 is disposed in the non-sealed chamber 15.
  • the coolant that has absorbed heat in the main circuit portion 2 and the auxiliary circuit portion 21 proceeds to the heat exchanger 5 in the coolant circulation circuit 20, and is heat-exchanged with the air in the non-sealed chamber 15 in the heat exchanger 5.
  • the coolant is thereby cooled and returned again to the pump 10 via the reservoir tank 8.
  • the power conversion device 1 includes the main circuit unit 2 including the semiconductor element 2a, the main circuit heat sink 3A to which the main circuit unit 2 is attached, the auxiliary circuit including the reactor 13 and the resistor 14. Part 21, an auxiliary circuit heat sink 3 ⁇ / b> B to which the auxiliary circuit part 21 is attached, and a main circuit heat sink 3 ⁇ / b> A and a coolant circulation circuit 20 for flowing coolant through the auxiliary circuit heat sink 3 ⁇ / b> B.
  • the semiconductor element 2 a of the main circuit unit 2 but also the reactor 13 and the resistor 14 of the auxiliary circuit unit 21 can be efficiently cooled by the coolant circulation circuit 20.
  • the main circuit heat sink 3A and the auxiliary circuit heat sink 3B are disposed in the sealed chamber 9, and the heat exchanger 5 of the coolant circulation circuit 20 is disposed in the non-sealed chamber 15. Has been. For this reason, it is possible to prevent the reactor 13 and the resistor 14 of the auxiliary circuit unit 21 from being contaminated by the outside air.
  • the auxiliary circuit heat sink 3B is connected in series to the downstream side of the main circuit heat sink 3A in the coolant passage of the coolant circulation circuit 20. For this reason, the temperature rise of the coolant accompanying the cooling of the auxiliary circuit unit 21 does not affect the cooling of the main circuit unit 2. Therefore, when the power conversion device 1 according to the present embodiment is employed, the main circuit unit 2 having a large calorific value can be preferentially cooled.
  • Drawing 2 is a mimetic diagram which looked at power converter 1A of a 2nd embodiment from the side.
  • the basic configuration of the power conversion device 1A of the second embodiment is substantially the same as that of the first embodiment, but the coolant passage 25A is branched into three on the downstream side of the pump 10 of the coolant circulation circuit 20A. , 25B, 25C (first coolant passage, second coolant passage, third coolant passage) are provided, and the main circuit heat sink 3A (first heat receiving member) is provided in each of the coolant passages 25A, 25B, 25C. And the auxiliary circuit heat sink 3B (second heat receiving member).
  • the auxiliary circuit heat sink 3B is connected in series to the downstream side of the main circuit heat sink 3A in each of the coolant passages 25A, 25B, and 25C. Further, the three branched coolant passages 25 ⁇ / b> A, 25 ⁇ / b> B, and 25 ⁇ / b> C are joined again and connected to the heat exchanger 5.
  • the power conversion device 1A of the second embodiment can obtain the same basic effects as those of the first embodiment.
  • a main circuit heat sink 3A and an auxiliary circuit heat sink 3B are connected in series to each of the coolant passages 25A, 25B, and 25C provided in parallel in the coolant circulation circuit 20A.
  • a main circuit heat sink 3A and an auxiliary circuit heat sink 3B are connected in series to each of the coolant passages 25A, 25B, and 25C provided in parallel in the coolant circulation circuit 20A.
  • Drawing 3 is a mimetic diagram which looked at power converter 1B of a 3rd embodiment from the side.
  • the power converter 1B of the third embodiment has a basic configuration substantially the same as that of the first embodiment, but a coolant passage 25D branched into two on the downstream side of the pump 10 of the coolant circulation circuit 20B. 25E.
  • a main circuit heat sink 3A (first heat receiving member) is connected to one coolant passage 25D (first coolant passage), and an auxiliary circuit is connected to the other coolant passage 25E (second coolant passage).
  • a heat sink 3B (second heat receiving member) is connected.
  • the coolant passages 25 ⁇ / b> D and 25 ⁇ / b> E branched into two are joined again and connected to the heat exchanger 5.
  • the power conversion device 1B of the third embodiment can obtain the same basic effects as those of the first embodiment.
  • the main circuit heat sink 3A and the auxiliary circuit heat sink 3B are separately connected to different coolant passages 25D and 25E provided in parallel in the coolant circulation circuit 20B. ing. For this reason, one of the main circuit unit 2 and the auxiliary circuit unit 21 is cooled and the temperature of the coolant does not flow into the other. Therefore, both the semiconductor element 2a of the main circuit unit 2 of the power conversion device 1B, the reactor 13 and the resistor 14 on the auxiliary circuit unit 21 can be stably cooled.
  • Drawing 4 is a mimetic diagram which looked at power converter 1C of a 4th embodiment from the side.
  • the power conversion device 1C of the fourth embodiment includes a first coolant circulation circuit 20C-1 to which a main circuit heat sink 3A (first heat receiving member) is connected, and an auxiliary circuit heat sink 3B (second heat receiving member).
  • a second coolant circulation circuit 20C-2 to which a member is connected.
  • the first coolant circulation circuit 20C-1 is configured as a separate circuit from the second coolant circulation circuit 20C-2.
  • the casing 11 of the power conversion device 1C has a pair of sealed chambers 9a and 9b spaced apart from each other and a non-sealed chamber 15 disposed between the pair of sealed chambers 9a and 9b.
  • the main circuit heat sink 3A, the reservoir tank 8a of the first coolant circulation circuit 20C-1 and the pump 10a are arranged, and the other sealed chamber 9b (second sealed chamber).
  • the auxiliary circuit heat sink 3B, the reservoir tank 8b of the second coolant circulation circuit 20C-2, and the pump 10b are arranged.
  • the heat exchanger 5a of the first coolant circulation circuit 20C-1 and the heat exchanger 5b of the second coolant circulation circuit 20C-2 are arranged.
  • a blower 12 is disposed in the non-sealed chamber 15.
  • the heat exchanger 5a of the first coolant circulation circuit 20C-1 and the heat exchanger 5b of the second coolant circulation circuit 20C-2 are arranged to receive air from the common air blower 12. .
  • the power conversion device 1C of the fourth embodiment can obtain the same basic effects as those of the first embodiment.
  • the power conversion device 1C of the fourth embodiment further includes a first coolant circulation circuit 20C-1 to which the main circuit heat sink 3A is connected and a second coolant circulation circuit to which the auxiliary circuit heat sink 3B is connected. 20C-2.
  • the first coolant circulation circuit 20C-1 is configured as a separate circuit from the second coolant circulation circuit 20C-2.
  • the heat exchangers 5a and 5b of both circuits are arranged so as to receive air from the common air blower 12. For this reason, the temperature of the coolant flowing through one of the main circuit unit 2 and the auxiliary circuit unit 21 does not affect the temperature of the coolant flowing through the other.
  • the heat exchangers 5a and 5b can be cooled by the common air blower 12. Therefore, the power converter 1C can be configured in a compact manner while maintaining high cooling performance for the main circuit unit 2 and the auxiliary circuit unit 21.
  • FIG. 5 is a schematic view of the power conversion device 1D of the fifth embodiment viewed from the side.
  • the main circuit heat sink (first heat receiving member) and the auxiliary circuit heat sink (second heat receiving member) are commonly attached to the main circuit unit 2 and the auxiliary circuit unit 21.
  • Heat sink 3C heat exchanging part).
  • the heat sink 3C includes a heat exchanging unit 3Ca-1 for the main circuit unit 2 and a heat exchanging unit 3Ca-2 for the auxiliary circuit unit 21.
  • the power conversion device 1D of the fifth embodiment can obtain the same basic effects as those of the first embodiment.
  • the heat exchange unit 3Ca-1 for the main circuit unit 2 and the heat exchange unit 3Ca-2 for the auxiliary circuit unit 21 are configured in a common heat sink 3C. Therefore, when this configuration is adopted, the number of parts of the power conversion device 1D can be reduced to reduce the manufacturing cost.
  • a main circuit portion having a semiconductor element, a first heat receiving member (main circuit heat sink) to which the main circuit portion is attached, an auxiliary circuit portion having a reactor and a resistor, A second heat receiving member (heat sink for auxiliary circuit) to which the auxiliary circuit unit is attached, a coolant circulation circuit for flowing the coolant through the first heat receiving member and the second heat receiving member, and heat exchange for heat exchange of the coolant
  • the mounted circuit components of the auxiliary circuit section as well as the main circuit section can be efficiently cooled. Therefore, it is possible to avoid the performance degradation of the mounting components of the auxiliary circuit section due to the adhesion of dust or the like, and the increase in the size of the entire apparatus due to the use of a large air cooling structure.

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Abstract

実施形態の鉄道車両の電力変換装置は、半導体素子と、第１の受熱部材と、リアクトル及び抵抗と、第２の受熱部材と、冷却液循環回路と、熱交換器と、を持つ。半導体素子は、電力変換用の主回路部を構成する。第１の受熱部材には、半導体素子が取り付けられる。リアクトル及び抵抗は、電力変換用の補助回路部を構成する。第２の受熱部材には、リアクトル及び抵抗が取り付けられる。冷却液循環回路は、第１の受熱部材と第２の受熱部材に冷却液を流す。熱交換器は、冷却液の熱交換を行う。

Description

鉄道車両の電力変換装置
　本発明の実施形態は、鉄道車両の電力変換装置に関する。
　鉄道車両には、交流電力と直流電力を変換する電力変換装置が搭載されている。鉄道車両の電力変換装置は、ＩＧＢＴ（Insulated Gate Bipolar Transistor）やダイオード等の半導体素子によってインバータやコンバータ等の主回路部が構成されている。また、この種の電力変換装置は、高調波の抑制や力率の改善等のためにリアクトル及び抵抗を有する補助回路部を備えている。
　電力変換装置の主回路部の半導体素子は、スイッチング動作時等に高温を発するため、冷却液を循環させて主回路部を冷却することが多い。冷却液によって主回路部を冷却する電力変換装置は、冷却液との熱交換部を有する受熱部材（ヒートシンク）に半導体素子が取り付けられ、受熱部材が冷却液循環回路に接続されている。冷却液循環回路は、リザーバに貯留された冷却液をポンプによって循環させ、冷却対象である半導体素子から奪った熱を熱交換器で外部に放熱する。
　半導体素子を有する主回路部は、車外と密閉された密閉室内に配置され、熱交換器と、リアクトル及び抵抗を有する補助回路部は、車外と密閉されない非密閉室（風洞）に配置されている。
　このような鉄道車両の電力変換装置においては、半導体素子を有する主回路部を冷却液循環回路によって効率良く冷却することができる。しかし、補助回路部の発熱部品であるリアクトルと抵抗は、非密閉室において空冷によって冷却されているため、補助回路部の実装部品が室外の空気によって汚損され易いうえ、空冷構造が大型化し易い。したがって、このような電力変換装置においては、補助回路部の実装部品の経時使用に伴う性能低下や装置全体の大型化が懸念される。
日本国特開２００５－２８７２１４号公報
　本発明が解決しようとする課題は、補助回路部の実装部品の経時使用に伴う性能低下や装置全体の大型化を回避することができる鉄道車両の電力変換装置を提供することである。
　実施形態の鉄道車両の電力変換装置は、半導体素子と、第１の受熱部材と、リアクトル及び抵抗と、第２の受熱部材と、冷却液循環回路と、熱交換器と、を持つ。半導体素子は、電力変換用の主回路部を構成する。第１の受熱部材には、半導体素子が取り付けられる。リアクトル及び抵抗は、電力変換用の補助回路部を構成する。第２の受熱部材には、リアクトル及び抵抗が取り付けられる。冷却液循環回路は、第１の受熱部材と第２の受熱部材に冷却液を流す。熱交換器は、冷却液の熱交換を行う。
第１の実施形態の電力変換装置が搭載された鉄道車両を側方から見た模式図。 第２の実施形態の電力変換装置を側方から見た模式図。 第３の実施形態の電力変換装置を側方から見た模式図。 第４の実施形態の電力変換装置を側方から見た模式図。 第５の実施形態の電力変換装置を側方から見た模式図。
　以下、実施形態の鉄道車両の電力変換装置を、図面を参照して説明する。
　（第１の実施形態）
　図１は、第１の実施形態の電力変換装置１が搭載された鉄道車両２００を側方から見た模式図である。
　鉄道車両２００は、レール３０４上を転動する車輪３０５がモータ３０３によって駆動される。モータ３０３と車輪３０５は、車体２０１の下方に台車３０２を介して設置されている。車体２０１の上部には、パンタグラフ３０１が設置されている。鉄道車両２００は、パンタグラフ３０１を介して架線３００から電力を供給される。
　鉄道車両２００は、車体２０１の内側に電力変換装置１を搭載している。電力変換装置１は、例えば、パンタグラフ３０１を介して架線３００から供給された交流電力を直流に変換した後に、所望の交流電力に再度変換して車両駆動用のモータ３０３に電力を供給する。
　電力変換装置１は、筐体１１内に電力変換のための回路と冷却機構とが収容されている。筐体１１の内部は、車外と密閉された密閉室９と、車外と密閉されていない非密閉室１５（例えば、風洞）とに隔成されている。非密閉室１５は、図示しない通気口等を介して適宜車外に連通し、外気と非密閉室１５の間で熱交換ができるように構成されている。
　電力変換装置１は、ＩＧＢＴ（Insulated Gate Bipolar Transistor）やダイオード等の半導体素子２ａによってインバータやコンバータ等の主回路部２が構成されている。主回路部２は、第１の受熱部材である主回路用ヒートシンク３Ａに取り付けられている。主回路用ヒートシンク３Ａは、外部から冷却液が導入される熱交換部３Ａａを有している。熱交換部３Ａａは、熱交換部３Ａａと冷却液との間で熱交換を行う。
　主回路用ヒートシンク３Ａの熱交換部３Ａａは、冷却液循環回路２０に接続されている。冷却液循環回路２０は、リザーバタンク８に貯留された冷却液がポンプ１０の動力によって循環する。冷却液循環回路２０は、ポンプ１０の下流側に、主回路用ヒートシンク３Ａの熱交換部３Ａａが接続されている。また、冷却液循環回路２０のリザーバタンク８の上流側は、非密閉室１５内に配置された熱交換器５（ラジエータ）に接続されている。熱交換器５は、リザーバタンク８に向けて戻される冷却液と非密閉室１５内の空気（外気）との間で熱交換する。冷却液循環回路２０を流れる冷却液の熱は、熱交換器５において放熱される。
　また、非密閉室１５内には、熱交換器５に強制風を送風可能な送風装置１２が設置されている。
　また、電力変換装置１は、高調波の抑制や力率の改善等のための補助回路部２１を有している。補助回路部２１は、リアクトル１３と抵抗１４を有している。リアクトル１３と抵抗１４は、主回路部２の半導体素子２ａに比較すれば発熱量は小さいものの、通電によって熱を発生する。補助回路部２１は、第２の受熱部材である補助回路用ヒートシンク３Ｂに取り付けられている。補助回路用ヒートシンク３Ｂは、外部から冷却液が導入される熱交換部３Ｂａを有している。熱交換部３Ｂａは、熱交換部３Ｂａと冷却液との間で熱交換を行う。
　補助回路用ヒートシンク３Ｂの熱交換部３Ｂａは、冷却液循環回路２０のうちの主回路用ヒートシンク３Ａの下流側に直列に接続されている。
　電力変換装置１は、主回路部２が取り付けられた主回路用ヒートシンク３Ａと、補助回路部２１が取り付けられた補助回路用ヒートシンク３Ｂとが、リザーバタンク８とポンプ１０とともに密閉室９内に配置されている。冷却液循環回路２０は、熱交換器５のみが非密閉室１５内に配置されている。
　本実施形態の鉄道車両２００では、パンタグラフ３０１を介して架線３００から電力を供給されると、電力変換装置１の主回路部２と補助回路部２１において電力の変換を行い、変換された電力によってモータ３０３を駆動する。電力変換装置１の主回路部２においては、電力の変換時に半導体素子２ａが高熱を発するが、主回路部２が取り付けられている主回路用ヒートシンク３Ａにおいて、冷却液循環回路２０内の冷却液と主回路用ヒートシンク３Ａとの間で熱交換され、主回路部２が冷却される。また、このとき電力変換装置１の補助回路部２１においては、リアクトル１３と抵抗１４で熱を発するが、補助回路部２１が取り付けられている補助回路用ヒートシンク３Ｂにおいて、冷却液循環回路２０内の冷却液と補助回路用ヒートシンク３Ｂとの間で熱交換され、補助回路部２１が冷却される。
　主回路部２と補助回路部２１で吸熱した冷却液は、冷却液循環回路２０内の熱交換器５まで進み、その熱交換器５において非密閉室１５内の空気と熱交換される。冷却液は、これによって冷却され、リザーバタンク８を介してポンプ１０に再度戻される。
　以上のように、本実施形態に係る電力変換装置１は、半導体素子２ａを有する主回路部２と、主回路部２が取り付けられる主回路用ヒートシンク３Ａと、リアクトル１３及び抵抗１４を有する補助回路部２１と、補助回路部２１が取り付けられる補助回路用ヒートシンク３Ｂと、主回路用ヒートシンク３Ａと補助回路用ヒートシンク３Ｂに冷却液を流す冷却液循環回路２０とを備えている。このため、主回路部２の半導体素子２ａだけでなく補助回路部２１のリアクトル１３と抵抗１４をも冷却液循環回路２０によって効率良く冷却することができる。
　また、本実施形態に係る電力変換装置１においては、主回路用ヒートシンク３Ａと補助回路用ヒートシンク３Ｂが密閉室９に配置され、冷却液循環回路２０の熱交換器５が非密閉室１５に配置されている。このため、補助回路部２１のリアクトル１３と抵抗１４が外気によって汚損されるのを防止することができる。
　さらに、本実施形態に係る電力変換装置１では、補助回路用ヒートシンク３Ｂが冷却液循環回路２０の冷却液通路のうちの、主回路用ヒートシンク３Ａの下流側に直列に接続されている。このため、補助回路部２１の冷却に伴う冷却液の昇温が主回路部２の冷却に影響を与えることがなくなる。したがって、本実施形態に係る電力変換装置１を採用した場合には、発熱量の大きい主回路部２を優先して冷却することができる。
（第２の実施形態）
　図２は、第２の実施形態の電力変換装置１Ａを側方から見た模式図である。なお、以下で説明する各実施形態においては、第１の実施形態と同一部分に同一符号が付してある。
　第２の実施形態の電力変換装置１Ａは、基本的な構成は第１の実施形態とほぼ同様であるが、冷却液循環回路２０Ａのポンプ１０の下流側に３つに分岐した冷却液通路２５Ａ，２５Ｂ，２５Ｃ（第１冷却液通路、第２冷却液通路、第３冷却液通路）が設けられ、各冷却液通路２５Ａ，２５Ｂ，２５Ｃにそれぞれ主回路用ヒートシンク３Ａ（第１の受熱部材）と補助回路用ヒートシンク３Ｂ（第２の受熱部材）が接続されている。補助回路用ヒートシンク３Ｂは、各冷却液通路２５Ａ，２５Ｂ，２５Ｃにおいて、主回路用ヒートシンク３Ａの下流側に直列に接続されている。また、分岐した３つの冷却液通路２５Ａ，２５Ｂ，２５Ｃは再度合流して熱交換器５に接続されている。
　第２の実施形態の電力変換装置１Ａは、第１の実施形態と同様の基本的な効果を得ることができる。第２の実施形態の電力変換装置１Ａは、冷却液循環回路２０Ａ中に並列に設けられた冷却液通路２５Ａ，２５Ｂ，２５Ｃのそれぞれに主回路用ヒートシンク３Ａと補助回路用ヒートシンク３Ｂが直列に接続されている。このため、例えば、主回路部２と補助回路部２１の対応する機能部毎に冷却水による冷却を行うことができるうえ、個々のヒートシンクを小型化することができる。
（第３の実施形態）
　図３は、第３の実施形態の電力変換装置１Ｂを側方から見た模式図である。
　第３の実施形態の電力変換装置１Ｂは、基本的な構成は第１の実施形態とほぼ同様であるが、冷却液循環回路２０Ｂのポンプ１０の下流側に２つに分岐した冷却液通路２５Ｄ，２５Ｅが設けられている。一方の冷却液通路２５Ｄ（第１冷却液通路）には、主回路用ヒートシンク３Ａ（第１の受熱部材）が接続され、他方の冷却液通路２５Ｅ（第２冷却液通路）には、補助回路用ヒートシンク３Ｂ（第２の受熱部材）が接続されている。２つに分岐した冷却液通路２５Ｄ，２５Ｅは再度合流して熱交換器５に接続されている。
　第３の実施形態の電力変換装置１Ｂは、第１の実施形態と同様の基本的な効果を得ることができる。第３の実施形態の電力変換装置１Ｂは、さらに主回路用ヒートシンク３Ａと補助回路用ヒートシンク３Ｂが、冷却液循環回路２０Ｂ中に並列に設けられた異なる冷却液通路２５Ｄ，２５Ｅにそれぞれ別に接続されている。このため、主回路部２及び補助回路部２１のうち一方を冷却して昇温した冷却液が他方に流れ込むことがない。したがって、電力変換装置１Ｂの主回路部２の半導体素子２ａと、補助回路部２１上のリアクトル１３及び抵抗１４をいずれも安定して冷却することができる。
（第４の実施形態）
　図４は、第４の実施形態の電力変換装置１Ｃを側方から見た模式図である。
　第４の実施形態の電力変換装置１Ｃは、主回路用ヒートシンク３Ａ（第１の受熱部材）が接続される第１の冷却液循環回路２０Ｃ－１と、補助回路用ヒートシンク３Ｂ（第２の受熱部材）が接続される第２の冷却液循環回路２０Ｃ－２とを備える。第１の冷却液循環回路２０Ｃ－１は、第２の冷却液循環回路２０Ｃ－２とは別回路として構成されている。電力変換装置１Ｃの筐体１１は相互に離間した一対の密閉室９ａ，９ｂと、一対の密閉室９ａ，９ｂの間に配置される非密閉室１５と、を有している。
　一方の密閉室９ａ（第１密閉室）には、主回路用ヒートシンク３Ａと、第１の冷却液循環回路２０Ｃ－１のリザーバタンク８ａ及びポンプ１０ａが配置され、他方の密閉室９ｂ（第２密閉室）には、補助回路用ヒートシンク３Ｂと、第２の冷却液循環回路２０Ｃ－２のリザーバタンク８ｂ及びポンプ１０ｂが配置されている。非密閉室１５には、第１の冷却液循環回路２０Ｃ－１の熱交換器５ａと、第２の冷却液循環回路２０Ｃ－２の熱交換器５ｂが配置されている。非密閉室１５には、送風装置１２が配置されている。第１の冷却液循環回路２０Ｃ－１の熱交換器５ａと、第２の冷却液循環回路２０Ｃ－２の熱交換器５ｂとは、共通の送風装置１２から送風を受けるように配置されている。
　第４の実施形態の電力変換装置１Ｃは、第１の実施形態と同様の基本的な効果を得ることができる。第４の実施形態の電力変換装置１Ｃは、さらに主回路用ヒートシンク３Ａが接続される第１の冷却液循環回路２０Ｃ－１と、補助回路用ヒートシンク３Ｂが接続される第２の冷却液循環回路２０Ｃ－２とを備えている。第１の冷却液循環回路２０Ｃ－１は、第２の冷却液循環回路２０Ｃ－２とは別回路として構成されている。また、両回路の熱交換器５ａ，５ｂが、共通の送風装置１２から送風を受けるように配置されている。このため、主回路部２及び補助回路部２１のうち一方を流れる冷却液の温度が他方を流れる冷却液の温度に影響を与えることがない。さらに、一対の密閉室９ａ，９ｂ間に配置された非密閉室１５において、共通の送風装置１２によって熱交換器５ａ，５ｂを冷却することができる。したがって、主回路部２と補助回路部２１に対する冷却性能を高く維持しつつも、電力変換装置１Ｃをコンパクトに構成することができる。
（第５の実施形態）
　図５は、第５の実施形態の電力変換装置１Ｄを側方から見た模式図である。
　第５の実施形態の電力変換装置１Ｄは、主回路用ヒートシンク（第１の受熱部材）と補助回路用ヒートシンク（第２の受熱部材）が、主回路部２と補助回路部２１が取り付けられる共通のヒートシンク３Ｃ（熱交換部）によって構成されている。ヒートシンク３Ｃは、主回路部２に対する熱交換部３Ｃａ－１と、補助回路部２１に対する熱交換部３Ｃａ－２と、を有している。
　第５の実施形態の電力変換装置１Ｄは、第１の実施形態と同様の基本的な効果を得ることができる。ただし、第５の実施形態の電力変換装置１Ｄは、主回路部２に対する熱交換部３Ｃａ－１と、補助回路部２１に対する熱交換部３Ｃａ－２が共通のヒートシンク３Ｃに構成されている。したがって、この構成を採用した場合、電力変換装置１Ｄの部品点数を削減して製造コストの低減を図ることができる。
　以上説明した少なくともひとつの実施形態によれば、半導体素子を有する主回路部と、主回路部が取り付けられる第１の受熱部材（主回路用ヒートシンク）と、リアクトル及び抵抗を有する補助回路部と、補助回路部が取り付けられる第２の受熱部材（補助回路用ヒートシンク）と、第１の受熱部材と第２の受熱部材に冷却液を流す冷却液循環回路と、冷却液の熱交換を行う熱交換器と、を持つことにより、主回路部だけでなく補助回路部の実装部品をも効率良く冷却することができる。したがって、埃等が付着することによる補助回路部の実装部品の性能低下や、大型の空冷構造を用いることによる装置全体の大型化を回避することができる。
　本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれると同様に、特許請求の範囲に記載された発明とその均等の範囲に含まれるものである。
１，１Ａ，１Ｂ，１Ｃ，１Ｄ…電力変換装置、２…主回路部、２ａ…半導体素子、３Ａ…主回路用ヒートシンク（第１の受熱部材）、３Ｂ…補助回路用ヒートシンク（第２の受熱部材）、３Ｃ…ヒートシンク、３Ｃａ－１，３Ｃａ－２…熱交換部、５…熱交換器、９…密閉室、１２…送風装置、１３…リアクトル、１４…抵抗、１５…非密閉室、２０，２０Ａ，２０Ｂ…冷却液循環回路、２０Ｃ－１…第１の冷却液循環回路、２０Ｃ－２…第２の冷却液循環回路、２１…補助回路部、２５Ａ，２５Ｂ，２５Ｃ…冷却液通路、２５Ｄ，２５Ｅ…冷却液通路

Claims (7)

  1. 　電力変換用の主回路部を構成する半導体素子と、
    　前記半導体素子が取り付けられる第１の受熱部材と、
    　電力変換用の補助回路部を構成する電気部品のであるリアクトル及び抵抗と、
    　前記リアクトル及び抵抗が取り付けられる第２の受熱部材と、
    　前記第１の受熱部材と前記第２の受熱部材に冷却液を流す冷却液循環回路と、
    　前記冷却液の熱交換を行う熱交換器と、を備えている鉄道車両の電力変換装置。
  2. 　車外と密閉された密閉室と、車外と密閉されない非密閉室と、をさらに備え、
    　前記第１の受熱部材と前記第２の受熱部材とは前記密閉室に配置され、
    　前記冷却液循環回路の前記熱交換器は前記非密閉室に配置されている請求項１に記載の鉄道車両の電力変換装置。
  3. 　前記第２の受熱部材は、前記冷却液循環回路の冷却液通路のうちの、前記第１の受熱部材の下流側に直列に接続されている請求項１または２に記載の鉄道車両の電力変換装置。
  4. 　前記第１の受熱部材の下流側に前記第２の受熱部材が直列に接続された前記冷却液通路は、前記冷却液循環回路中に複数並列に設けられている請求項３に記載の鉄道車両の電力変換装置。
  5. 　前記第１の受熱部材と前記第２の受熱部材は、前記冷却液循環回路中に並列に設けられた異なる冷却液通路にそれぞれ別に接続されている請求項１または２に記載の鉄道車両の電力変換装置。
  6. 　前記熱交換器に送風可能な送風装置をさらに備え、
    　前記第１の受熱部材が接続される前記冷却液循環回路と、前記第２の受熱部材が接続される前記冷却液循環回路と、は別回路として構成され、
    　前記第１の受熱部材が接続される第１の冷却液循環回路と、前記第２の受熱部材が接続される第２の冷却液循環回路とは、各熱交換器が共通の前記送風装置から送風を受けるように配置されている請求項１または２に記載の鉄道車両の電力変換装置。
  7. 　前記第１の受熱部材と前記第２の受熱部材は、前記半導体素子に対する熱交換部と、前記リアクトル及び抵抗に対する熱交換部と、を有する一体の受熱部材によって構成されている請求項１または２に記載の鉄道車両の電力変換装置。
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