WO2013061786A1 - 電力変換装置 - Google Patents
電力変換装置 Download PDFInfo
- Publication number
- WO2013061786A1 WO2013061786A1 PCT/JP2012/076289 JP2012076289W WO2013061786A1 WO 2013061786 A1 WO2013061786 A1 WO 2013061786A1 JP 2012076289 W JP2012076289 W JP 2012076289W WO 2013061786 A1 WO2013061786 A1 WO 2013061786A1
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- WIPO (PCT)
- Prior art keywords
- bus bar
- power conversion
- dcdc converter
- circuit board
- conversion device
- Prior art date
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Classifications
-
- 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
-
- 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
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0272—Adaptations for fluid transport, e.g. channels, holes
-
- 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
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/007—Plural converter units in cascade
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/327—Means for protecting converters other than automatic disconnection against abnormal temperatures
Definitions
- the present invention relates to a power conversion device, and more particularly to a power conversion device in which a DCDC converter device and an inverter device are integrated.
- Electric vehicles and plug-in hybrid vehicles are equipped with an inverter device for driving a motor with a high-voltage battery for driving power.
- a low voltage storage battery for operating auxiliary equipment such as a vehicle light and a radio is mounted.
- Such a vehicle is equipped with a DCDC 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 (see, for example, Patent Document 1).
- the inverter device and the DCDC converter device be mounted in the smallest possible space outside the passenger compartment, particularly in the engine room.
- the temperature environment in the engine room is higher than the conventional use environment, and the use in a high temperature range may accelerate the deterioration of the control function of the inverter device and the DCDC converter device and the deterioration of the structural parts.
- the device is generally cooled by a refrigerant composed of water and a mixture.
- the cooling efficiency is high and the space saving is improved. It is an important technical element.
- An object of the present invention is to provide a power conversion device capable of improving the cooling efficiency.
- the present invention provides a power converter in which a DCDC converter device and an inverter device are integrally fixed, and a refrigerant flow formed between the DCDC converter device and the inverter device.
- the DCDC converter device includes a metal circuit board and a bus bar soldered to the circuit board by a solder fixing part, and the solder fixing part of the bus bar is necessary for two circuits.
- an electrically non-connected solder fixing portion is provided, and the electrically non-connecting solder fixing portion is disposed in the vicinity of the range of the refrigerant flow path. . With this configuration, the cooling efficiency in the power conversion device can be improved.
- the center of gravity of the fixed portion of the bus bar is arranged in a triangle connecting three points of the bus bar solder fixing portion.
- the metal circuit board is provided with a heat conductive grease or a heat radiation sheet disposed between the case of the DCDC converter device for fixing the metal circuit board.
- the cooling efficiency in the power converter can be improved.
- FIG. 1 is an exploded perspective view showing the overall configuration of a power converter according to an embodiment of the present invention.
- FIG. 2 is a partial cross-sectional perspective view showing the configuration of the inverter device used in the power conversion device according to the embodiment of the present invention.
- the power conversion device 1 is obtained by integrating a DCDC converter device 100 and an inverter device 200.
- the DCDC converter device 100 and the inverter device 200 are shown in a separated state.
- the DCDC converter device 100 is fixed to the case bottom surface side of the inverter device 200 by a plurality of bolts.
- the power conversion device 1 is applied to an electric vehicle or the like, and the inverter device 200 drives a traveling motor with electric power from an on-vehicle high voltage storage battery.
- the vehicle is equipped with a low voltage storage battery for operating auxiliary equipment such as a light and a radio, and the DCDC converter device 100 converts power from a high voltage storage battery to a low voltage storage battery or from a low voltage storage battery to a high voltage storage battery. Power conversion.
- the inverter device 200 includes an inlet pipe 13 and an outlet pipe 14.
- the inlet pipe 13 and the outlet pipe 14 are each connected to a refrigerant flow path 101 ⁇ / b> A formed inside the inverter device 200.
- the refrigerant channel 101A of the inverter device 200 is open at the top. The opening is covered by fixing the DCDC converter device 100 to the inverter device 200. Thereby, a refrigerant flow path through which a refrigerant flows is formed between the inverter device 200 and the DCDC converter device 100.
- a module SW of a semiconductor switching element protrudes inside the refrigerant flow path 101A, and the semiconductor switching element is immersed in the refrigerant flowing through the refrigerant flow path 101A.
- the refrigerant flows into the flow path from the inlet pipe 13 and flows out from the outlet pipe 14.
- FIG. 3 is a perspective view showing a configuration of a DCDC converter device used in the power conversion device according to the embodiment of the present invention.
- 3A is a top view and
- FIG. 3B is a bottom view.
- the refrigerant channel range 101 is shown on the bottom surface of the DCDC converter device 100.
- the refrigerant channel range 101 is a range facing the refrigerant channel 101 ⁇ / b> A shown in FIG. 2, and the heat generated by the DCDC converter device 100 is radiated to the refrigerant channel range 101.
- FIG. 4 is a perspective view showing an internal configuration of the DCDC converter device used in the power conversion device according to the embodiment of the present invention.
- FIG. 4 shows a state in which the upper cover of the DCDC converter device shown in FIG.
- the DCDC converter device 100 has a circuit board assembly 150 fixed therein.
- the board bottom surface of the circuit board assembly 150 is in surface contact with the plane of the DCDC converter case 110.
- the DCDC converter case 110 is made of aluminum die cast.
- the circuit board assembly 150 is provided with a bus bar through which a high current flows. The configuration and the heat dissipation structure will be described with reference to FIG.
- FIGS. 5 and 6 are perspective views showing the configuration of the bus bar used in the circuit board assembly of the DCDC converter device of the power conversion device according to the embodiment of the present invention.
- FIG. 5 is a perspective view from the left direction
- FIG. 6 is a perspective view from the right direction.
- the circuit board assembly 150 arranged in the DCDC converter includes bus bars 160 and 161.
- the bus bars 160 and 161 are bent into a crank shape and fixed to the metal substrate 151.
- the plane portions of the bus bars 160 and 161 are fixed so as to be orthogonal to the plane portion of the metal substrate 151. Therefore, the ratio of the bus bars 160 and 161 to the area of the planar portion of the metal substrate 151 can be reduced, and the mounting efficiency is increased.
- the metal substrate 151 has a wiring layer formed on an aluminum substrate via an insulating layer.
- the bus bars 160 and 161 are connected and fixed to this wiring layer.
- the bus bars 160 and 161 are made of copper, and are strip-shaped conductors as shown.
- the bus bars 160 and 161 have a width of several tens of millimeters and a thickness of 1 mm. Since the bus bars 160 and 161 are made of copper and have a large sectional area, the electrical resistance is small. However, since a high current such as 100A to 200A flows through the bus bar on the low pressure side, the amount of heat generated is also large.
- the bus bar 160 is fixed to the metal substrate 151 with solder. When solder is fixed, it is fixed by solder reflow.
- the bus bar 160 includes four bus bar solder fixing portions 160a, 160b, 160c, and 160d. Two of the four bus bar solder fixing portions 160a and 160b are in electrical circuit connection with the wiring layer of the metal substrate 151, and are necessary in terms of circuit.
- bus bar solder fixing portions 160 c and 160 d are connection portions newly provided to dissipate heat to the refrigerant flow path range 101 via the metal substrate 151 and the DCDC converter case 110.
- the bus bar 161 is fixed to the metal substrate 151 with solder.
- the bus bar 161 includes four solder fixing portions 161a, 161b, 161c, and 161d. Of the four locations, two solder fixing portions 161a and 161b are connected in a circuit form, and are necessary connections in terms of the circuit.
- the solder fixing portions 161 c and 161 d are connection portions newly provided to radiate heat to the refrigerant flow path range 101 via the metal substrate 151 and the DCDC converter case 110.
- FIG. 7 is a plan view showing the barycenter position of the bus bar used in the circuit board assembly of the DCDC converter device of the power conversion device according to the embodiment of the present invention.
- the same reference numerals as those in FIGS. 5 and 6 indicate the same parts.
- FIG. 7A shows the bus bar 160
- FIG. 7B shows the bus bar 161.
- solder fixing portion three-point frame When the bus bars 160 and 161 are mounted on the metal substrate 151, the centers of gravity 160e and 161e of the individual parts of the bus bars 160 and 161 are located inside the solder fixing portion three-point frame.
- the centers of gravity 160e and 161e of the individual parts of the bus bars 160 and 161 are located inside the solder fixing portion three-point frame.
- FIGS. 8 and 9 are explanatory diagrams of a cooling structure of the bus bar used in the circuit board assembly of the DCDC converter device of the power conversion device according to the embodiment of the present invention.
- the same reference numerals as those in FIGS. 1 to 7 denote the same parts.
- 8A is a plan view of the DCDC converter device with the cover removed
- FIG. 8B is a cross-sectional view taken along the line AA in FIG. 8A.
- FIG. 9 is an enlarged cross-sectional view of a round portion in FIG.
- the circuit board assembly 150 has a board fixed to the DCDC converter case 110 with screws. Bus bars 160 and 161 are soldered to the circuit board 151. At this time, the bus bars 160 and 161 and the grounding part of the circuit board 151 (solder fixing parts 160a to 161d in FIGS. 5 and 6) are in contact with the refrigerant flow path range 101 through the circuit board 151 and the DCDC converter case 110.
- a heat conductive grease is applied between the metal substrate 151 and the DCDC converter case 110 to improve heat dissipation.
- the metal substrate 151 and the DCDC converter case 110 are in surface contact with each other, but are in point contact when viewed finely. Therefore, in order to improve contact and secure thermal conductivity, thermally conductive grease is interposed.
- the thermal conductivity of the thermal conductive grease is worse than that of metal, so the thickness of the thermal conductive grease should be as thin as possible. In this regard, the thickness of the grease can be reduced by increasing the tightening amount of the screw that fixes the circuit board assembly 150 to the DCDC converter case 110.
- a heat radiating sheet can also be used instead of the heat conductive grease.
- the newly provided bus bar solder fixing portions 160c, 160d, 161c, and 161d are arranged in the vicinity of the refrigerant flow path range 101 or in the vicinity thereof. As described above, the bus bar solder fixing portions 160c, 160d, 161c, and 161d are positively brought into contact with the refrigerant flow path range 101, so that the heat dissipation can be dramatically improved.
- bus bar solder fixing portions 160c, 160d, 161c, and 161d when the bus bar 160 and the bus bar 161 are arranged on the metal board 151 at the time of assembly, the bus bars 160 and 161 can stand on their own, so that the stability is further increased. Work efficiency during assembly and solder reflow work is improved.
- a power conversion device mounted on a vehicle is required to have high vibration resistance in order to cope with vibrations generated during traveling.
- bus bar solder fixing portions 160c, 160d, 161c, and 161d are added. Then, when vibration is applied to the bus bar, stress applied to the bus bar solder connection portions 160a and 160b necessary for the circuit is relieved, and the connection reliability of the bus bar solder connection portions 160a and 160b is improved. Therefore, a power converter having high vibration resistance can be realized.
- FIG. 10 is a plan view showing the configuration of the circuit board assembly of the DCDC converter device of the power conversion device according to the embodiment of the present invention. 1 to 9 indicate the same parts.
- bus bars 190a and 190b are electrically connected by bus bars 190a and 190b.
- These bus bars have a flat plate shape parallel to the circuit board assembly 150 as shown in FIG. 10 and a structure with a low height from the circuit board, so that when a current flows through the bus bar, the circuit board assembly. Since an eddy current in the opposite direction is generated in 150 and the magnetic field around the bus bars is reduced, the inductance of these bus bars can be reduced. This effect is greater as the bus bar height is lower.
- bus bars 190a and the bus bar 190b are divided in the above example, the effect is the same even if they are integrated. Further, the above has been described with respect to the semiconductor packages 170 to 173 and the bus bars 190a and 190b, but the same applies to the semiconductor packages 174 to 177 and the bus bars 191a and 191b.
- the above description is merely an example, and when interpreting the present invention, there is no limitation or restriction on the correspondence between the items described in the above embodiment and the items described in the claims.
- the power conversion device mounted on a vehicle such as PHEV or EV has been described as an example.
- the present invention is not limited thereto, and is also applied to a power conversion device used for a vehicle such as a construction machine. can do.
- the present embodiment it is possible to provide a power conversion device that prevents deterioration of the function of the device due to a high temperature environment of the power conversion device and progression of deterioration of components, and suppresses an increase in size.
- the increase in cooling parts can be reduced, and the manufacturing cost can be reduced.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Inverter Devices (AREA)
Abstract
Description
かかる構成により、電力変換装置における冷却効率を向上できるものとなる。
最初に、図1及び図2を用いて、本実施形態による電力変換装置の全体構成について説明する。
図1は、本発明の一実施形態による電力変換装置の全体構成を示す分解斜視図である。図2は、本発明の一実施形態による電力変換装置に用いるインバータ装置の構成を示す部分断面の斜視図である。
図3は、本発明の一実施形態による電力変換装置に用いるDCDCコンバータ装置の構成を示す斜視図である。なお、図3(A)は上面図であり、図3(B)は底面図である。
図4は、本発明の一実施形態による電力変換装置に用いるDCDCコンバータ装置の内部構成を示す斜視図である。図4は、図3(A)に示したDCDCコンバータ装置の上部のカバーを外した状態を示している。
図5及び図6は、本発明の一実施形態による電力変換装置のDCDCコンバータ装置の回路基板アッセンブリに用いるバスバーの構成を示す斜視図である。図5は左方向からの斜視図であり、図6は右方向からの斜視図である。
図7は、本発明の一実施形態による電力変換装置のDCDCコンバータ装置の回路基板アッセンブリに用いるバスバーの重心位置を示す平面図である。なお、図5及び図6と同一符号は、同一部分を示している。
図8及び図9は、本発明の一実施形態による電力変換装置のDCDCコンバータ装置の回路基板アッセンブリに用いるバスバーの冷却構造の説明図である。なお、図1~図7と同一符号は、同一部分を示している。図8(A)はカバーを外した状態のDCDCコンバータ装置の平面図であり、図8(B)は、図8(A)のA-A矢視断面図である。図9は、図8(B)の丸部の拡大断面図である。
図10は、本発明の一実施形態による電力変換装置のDCDCコンバータ装置の回路基板アッセンブリの構成を示す平面図である。なお、図1~図9と同一符号は、同一部分を示している。
14…冷媒出口配管
100…DCDCコンバータ装置
101…冷媒流路範囲
110…DCDCコンバータケース
150…回路基板アッセンブリ
151…金属基板
160,161,190a,190b,191a,191b…バスバー
160a,160b,161a,161b…バスバー半田固定部
160c,160d,161c,161d…バスバー半田固定部
160e,161e…バスバー重心
170~177…半導体パッケージ
200…インバータ装置
Claims (3)
- DCDCコンバータ装置とインバータ装置が一体に固定された電力変換装置であって、
前記DCDCコンバータ装置と前記インバータ装置の間に形成された冷媒流路と、
前記DCDCコンバータ装置は、
金属性の回路基板と、
該回路基板に半田固定部により半田付けされるバスバーとを備え、
該バスバーの前記半田固定部は、2箇所の回路的に必要な接続となる半田固定部に加えて、電気的に非接続な半田固定部を備え、
電気的に非接続な前記半田固定部は、前記冷媒流路の範囲の近傍に配置されていることを特徴とする電力変換装置。 - 請求項1に記載の電力変換装置において、
前記バスバーの固定部の重心が、バスバー半田固定部3点を結んだ3角形内に配置されていることを特徴とする電力変換装置。 - 請求項1に記載の電力変換装置において、
前記金属回路基板と、それを固定するDCDCコンバータ装置の前記ケースの間に配置された、熱伝導性グリースまたは放熱シートを備えることを特徴とする電力変換装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112012004517.3T DE112012004517T5 (de) | 2011-10-28 | 2012-10-11 | Umsetzungssystem für elektrische Leistung |
CN201280053125.XA CN103907276A (zh) | 2011-10-28 | 2012-10-11 | 电力转换装置 |
US14/353,698 US20140285970A1 (en) | 2011-10-28 | 2012-10-11 | Electric Power Conversion System |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011237978A JP5660680B2 (ja) | 2011-10-28 | 2011-10-28 | 電力変換装置 |
JP2011-237978 | 2011-10-28 |
Publications (1)
Publication Number | Publication Date |
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WO2013061786A1 true WO2013061786A1 (ja) | 2013-05-02 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2012/076289 WO2013061786A1 (ja) | 2011-10-28 | 2012-10-11 | 電力変換装置 |
Country Status (5)
Country | Link |
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US (1) | US20140285970A1 (ja) |
JP (1) | JP5660680B2 (ja) |
CN (1) | CN103907276A (ja) |
DE (1) | DE112012004517T5 (ja) |
WO (1) | WO2013061786A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5504219B2 (ja) | 2011-07-27 | 2014-05-28 | 日立オートモティブシステムズ株式会社 | 電力変換装置 |
JP5855899B2 (ja) * | 2011-10-27 | 2016-02-09 | 日立オートモティブシステムズ株式会社 | Dc−dcコンバータ及び電力変換装置 |
JP6341971B2 (ja) * | 2016-10-25 | 2018-06-13 | 伸▲よし▼ 杉谷 | トーテムポール回路のパワー素子接続構造 |
JP6907921B2 (ja) * | 2017-12-18 | 2021-07-21 | トヨタ自動車株式会社 | 電気機器 |
JP1654200S (ja) * | 2019-06-18 | 2020-03-02 | ||
CN213637490U (zh) * | 2020-12-04 | 2021-07-06 | 上海法雷奥汽车电器系统有限公司 | 一种dcdc电源转换器 |
Citations (5)
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JP2006149063A (ja) * | 2004-11-18 | 2006-06-08 | Nidec Shibaura Corp | プリント配線基板 |
JP2006261368A (ja) * | 2005-03-17 | 2006-09-28 | Toyota Motor Corp | 電子部品収容構造体 |
JP2006264473A (ja) * | 2005-03-23 | 2006-10-05 | Toyota Motor Corp | 冷却システムおよびハイブリッド自動車 |
JP2008048516A (ja) * | 2006-08-11 | 2008-02-28 | Sumitomo Wiring Syst Ltd | 電気接続箱に収容する回路材および該回路材を収容する車載用の電気接続箱 |
JP2009188192A (ja) * | 2008-02-06 | 2009-08-20 | Mitsubishi Electric Corp | 回路装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8125781B2 (en) * | 2004-11-11 | 2012-02-28 | Denso Corporation | Semiconductor device |
JP4293246B2 (ja) * | 2007-02-19 | 2009-07-08 | 株式会社日立製作所 | 電力変換装置 |
JP4580997B2 (ja) * | 2008-03-11 | 2010-11-17 | 日立オートモティブシステムズ株式会社 | 電力変換装置 |
JP5471685B2 (ja) * | 2010-03-24 | 2014-04-16 | 株式会社デンソー | 電力変換装置 |
-
2011
- 2011-10-28 JP JP2011237978A patent/JP5660680B2/ja active Active
-
2012
- 2012-10-11 US US14/353,698 patent/US20140285970A1/en not_active Abandoned
- 2012-10-11 DE DE112012004517.3T patent/DE112012004517T5/de not_active Ceased
- 2012-10-11 CN CN201280053125.XA patent/CN103907276A/zh active Pending
- 2012-10-11 WO PCT/JP2012/076289 patent/WO2013061786A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006149063A (ja) * | 2004-11-18 | 2006-06-08 | Nidec Shibaura Corp | プリント配線基板 |
JP2006261368A (ja) * | 2005-03-17 | 2006-09-28 | Toyota Motor Corp | 電子部品収容構造体 |
JP2006264473A (ja) * | 2005-03-23 | 2006-10-05 | Toyota Motor Corp | 冷却システムおよびハイブリッド自動車 |
JP2008048516A (ja) * | 2006-08-11 | 2008-02-28 | Sumitomo Wiring Syst Ltd | 電気接続箱に収容する回路材および該回路材を収容する車載用の電気接続箱 |
JP2009188192A (ja) * | 2008-02-06 | 2009-08-20 | Mitsubishi Electric Corp | 回路装置 |
Also Published As
Publication number | Publication date |
---|---|
CN103907276A (zh) | 2014-07-02 |
DE112012004517T5 (de) | 2014-08-07 |
US20140285970A1 (en) | 2014-09-25 |
JP5660680B2 (ja) | 2015-01-28 |
JP2013099044A (ja) | 2013-05-20 |
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