WO2024189811A1 - 電力変換装置 - Google Patents

電力変換装置 Download PDF

Info

Publication number
WO2024189811A1
WO2024189811A1 PCT/JP2023/009996 JP2023009996W WO2024189811A1 WO 2024189811 A1 WO2024189811 A1 WO 2024189811A1 JP 2023009996 W JP2023009996 W JP 2023009996W WO 2024189811 A1 WO2024189811 A1 WO 2024189811A1
Authority
WO
WIPO (PCT)
Prior art keywords
coaxial
power conversion
conversion device
conductor
bus bar
Prior art date
Application number
PCT/JP2023/009996
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
孝弘 増山
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2025506343A priority Critical patent/JPWO2024189811A1/ja
Priority to PCT/JP2023/009996 priority patent/WO2024189811A1/ja
Publication of WO2024189811A1 publication Critical patent/WO2024189811A1/ja

Links

Images

Classifications

    • 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
    • H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
    • H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
    • H02M7/06—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without 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

Definitions

  • This disclosure relates to a power conversion device.
  • laminate bus bars have been used as a connection line between semiconductor elements and electronic circuit components in power conversion devices.
  • a laminate bus bar consisting of a positive conductor and a negative conductor sandwiched between an insulating film is used as a connection line between an IGBT (Insulated Gate Bipolar Transistor) and a filter capacitor in the power conversion device.
  • IGBT Insulated Gate Bipolar Transistor
  • a magnetic flux is generated when the electrical connection is established, which makes it impossible to arrange devices that are vulnerable to magnetic flux in the vicinity, resulting in a problem of the power conversion device becoming large.
  • Patent Document 1 discloses the use of a coaxial line as a connection line between a semiconductor element and an electronic circuit component in the power converter.
  • Patent Document 1 discloses the use of a coaxial cable for the connection lines between the filter capacitor and the converter circuit, and between the filter capacitor and the inverter circuit of the power converter in order to reduce inductance.
  • coaxial cables are designed for the purpose of impedance matching to efficiently transmit high-frequency signals, and when connecting semiconductor elements and electronic circuit components in a power conversion device with a coaxial cable for electrical continuity, there is an issue in that it is not possible to pass a large current through the connecting line while suppressing the generation of magnetic flux.
  • This disclosure has been made to solve the problems described above, and aims to provide a power conversion device equipped with a coaxial line that can pass a large current while suppressing the generation of magnetic flux between semiconductor elements and electronic circuit components.
  • the power conversion device includes a semiconductor element, an electronic circuit component, an external conductor that connects the same polarity terminals of the semiconductor element and the electronic circuit component outside the coaxial line, an internal conductor that connects the other same polarity terminals of the semiconductor element and the electronic circuit component inside the coaxial line, and a coaxial bus bar having an insulator provided between the external conductor and the internal conductor.
  • the power conversion device disclosed herein allows large currents to flow through semiconductor elements and electronic circuit components while suppressing the generation of magnetic flux.
  • FIG. 1 is a configuration diagram showing a power conversion device according to a first embodiment of the present disclosure
  • 1 is a configuration diagram showing a coaxial bus bar of a power conversion device according to a first embodiment of the present disclosure.
  • FIG. 5A to 5C are diagrams illustrating a method for manufacturing a coaxial bus bar for a power conversion device according to a first embodiment of the present disclosure.
  • FIG. 1 is a configuration diagram showing a power conversion device according to a comparative example of the present disclosure.
  • FIG. 11 is a configuration diagram showing a power conversion device according to a second embodiment of the present disclosure.
  • FIG. 11 is a configuration diagram showing a coaxial bus bar of a power conversion device according to a second embodiment of the present disclosure.
  • FIG. 13A to 13C are diagrams illustrating a method for manufacturing a coaxial bus bar for a power conversion device according to a second embodiment of the present disclosure.
  • 13 is a diagram showing a first modified example (positive electrode inner conductor is flat) of the coaxial bus bar of the power conversion device according to the second embodiment of the present disclosure.
  • FIG. 13A to 13C are diagrams illustrating a second modified example (positive electrode inner conductor is a plurality of cylinders) of the coaxial busbar of the power conversion device according to the second embodiment of the present disclosure.
  • 13 is a diagram showing a third modified example (positive electrode inner conductor is an insulated wire) of the coaxial bus bar of the power conversion device according to the second embodiment of the present disclosure.
  • FIG. 13 is a diagram showing a sixth modified example (in which the negative outer conductor and the positive inner conductor are insulated by an insulator and a spacer) of the coaxial bus bar of the power conversion device according to the second embodiment of the present disclosure.
  • FIG. 13 is a diagram showing a seventh modified example (in which the negative electrode outer conductor and the positive electrode inner conductor are insulated by air insulation through a gap and by a spacer) of the coaxial bus bar of the power conversion device according to the second embodiment of the present disclosure.
  • Fig. 1 is a configuration diagram showing a power conversion device according to a first embodiment of the present disclosure, in which Fig. 1(a) is a plan view of the power conversion device 1 and Fig. 1(b) is a side view of the power conversion device 1.
  • the power conversion device 1 includes a semiconductor element 2, a filter capacitor 3, a coaxial bus bar 4, and a cooler 5.
  • the power conversion device 1 is mounted, for example, on a railway vehicle, converts DC power supplied from a DC power source into AC power for supply to a load device, and supplies the converted AC power to the load device.
  • the power conversion device 1 includes a semiconductor element 2, for example an IGBT, which is a switching element, and converts DC power into AC power by switching operation with on/off control, and supplies it to a load device.
  • a semiconductor element 2 for example an IGBT, which is a switching element, and converts DC power into AC power by switching operation with on/off control, and supplies it to a load device.
  • the filter capacitor 3 is an electronic circuit component of the power conversion device 1, and is charged by DC power supplied from the power source.
  • the filter capacitor 3 forms an LC filter together with a reactor (not shown) provided in the circuit between the filter capacitor 3 and the power source, and reduces harmonic components generated by switching operations.
  • the coaxial busbar 4 connects the semiconductor element 2 and the filter capacitor 3 to conduct DC power.
  • Fig. 2 is a configuration diagram of the coaxial busbar 4, with Fig. 2(a) being a perspective view of the coaxial busbar 4, Fig. 2(b) being a plan view of the coaxial busbar 4, Fig. 2(c) being an exploded perspective view of the coaxial busbar 4, Fig. 2(f) being a front view of the coaxial busbar 4, Fig. 2(d) being a cross-sectional view of the coaxial busbar 4 taken along line A-A in Fig. 2(f), and Fig. 2(e) being a left side view of the coaxial busbar 4.
  • the coaxial bus bar 4 includes a negative outer conductor 4a, a positive inner conductor 4b, and an insulator 4c.
  • the coaxial bus bar 4 has a shape including an L-shaped bent portion.
  • the negative outer conductor 4a is a coaxial line connecting the negative terminal of the semiconductor element 2 and the negative terminal of the filter capacitor 3 with the outer conductor of the coaxial bus bar 4.
  • the positive inner conductor 4b is a coaxial line connecting the positive terminal of the semiconductor element 2 and the positive terminal of the filter capacitor 3 with the inner conductor of the coaxial bus bar 4.
  • the negative electrode external conductor 4a and the insulator 4c may have a shape obtained by bending a cylinder into an L-shape
  • the positive electrode internal conductor 4b may have a shape obtained by bending a cylinder into an L-shape.
  • the negative outer conductor 4a is an outer conductor that electrically connects the negative terminals to each other outside the coaxial line, but the outer conductor may also electrically connect the positive terminals to each other outside the coaxial line.
  • the outer conductor may be any conductor that electrically connects the terminals of the same polarity of the semiconductor element 2 and the filter capacitor 3 to each other outside the coaxial line.
  • the positive internal conductor 4b is an internal conductor that electrically connects the positive terminals to each other inside the coaxial line, but the internal conductor may also electrically connect other terminals of the same polarity that are not the polarity of the external conductor, i.e., negative terminals, to each other inside the coaxial line.
  • the internal conductor may be any conductor that electrically connects other terminals of the same polarity to each other inside the coaxial line.
  • the shape of both ends of the negative electrode external conductor 4a is flat with fastening holes 4d for connection with a bolt or the like to the negative electrode terminal of the semiconductor element 2 or the negative electrode terminal of the filter capacitor 3.
  • the shape of both ends of the positive electrode internal conductor 4b is flat with fastening holes 4e for connection with a bolt or the like to the positive electrode terminal of the semiconductor element 2 or the positive electrode terminal of the filter capacitor 3.
  • the negative external conductor 4a connects the negative terminals of the semiconductor element 2 and the filter capacitor 3, providing electrical continuity.
  • the positive internal conductor 4b connects the positive terminals of the semiconductor element 2 and the filter capacitor 3, providing electrical continuity in a direction different from the direction of continuity provided by the negative external conductor.
  • the negative electrode external conductor 4a and the positive electrode internal conductor 4b are made of copper or aluminum, but may be made of other metals.
  • the material of the insulator 4c is PBT (polybutylene terephthalate) resin, PPS (polyphenylene sulfide) resin, ABS (acrylonitrile butadiene styrene) resin, or epoxy resin, but other resins may also be used.
  • PBT polybutylene terephthalate
  • PPS polyphenylene sulfide
  • ABS acrylonitrile butadiene styrene
  • epoxy resin but other resins may also be used.
  • the cooler 5 cools the semiconductor element 2, which generates heat due to electrical conduction.
  • the negative outer conductor 4a and the positive inner conductor 4b have a coaxial structure and conduct in different directions, so the magnetic fluxes generated by the conduction cancel each other out, allowing a large current to flow while suppressing the generation of magnetic flux in the coaxial busbar 4.
  • Being able to pass a large current while suppressing the generation of magnetic flux makes it possible to place devices that are vulnerable to magnetic flux around the coaxial busbar 4, making it possible to miniaturize the power conversion device, for example.
  • Figure 3 shows a method for manufacturing a coaxial busbar for a power converter. As shown in Figure 3(a), both ends of the negative outer conductor 4a and both ends of the positive inner conductor 4b are integrated by gates 4f, and the space between the negative outer conductor 4a and the positive inner conductor 4b is hollow.
  • the shape is formed by a metal 3D printer, forging, extrusion, etc.
  • a resin that will become the insulator 4c is inserted by insert molding or the like into the cavity between the negative electrode external conductor 4a and the positive electrode internal conductor 4b that were created during molding. Because the positive electrode internal conductor 4b is fixed to the negative electrode external conductor 4a by the gate 4f, the negative electrode external conductor 4a does not move and the shape of the cavity does not change, so the resin can be easily inserted.
  • the gate 4f is separated from the negative electrode outer conductor 4a and the positive electrode inner conductor 4b for insulation.
  • FIG. 4 is a configuration diagram showing a power conversion device according to a comparative example of the present disclosure, in which FIG. 4(a) is a side view of a power conversion device 20, FIG. 4(b) is a cross-sectional view of a laminated busbar 9, FIG. 4(c) is a perspective view of the laminated busbar 9, and FIG. 4(d) is a plan view of the laminated busbar 9.
  • the power conversion device 20 includes a semiconductor element 2, a filter capacitor 3, a laminated busbar 9, and a cooler 5.
  • the laminated busbar 9 includes a negative conductor 6, a positive conductor 7, and an insulating film 8.
  • the coaxial busbar 4 can be manufactured, for example, by automatically molding the negative outer conductor 4a and the positive inner conductor 4b using a metal 3D printer while melting metal with a laser and laminating them based on created 3D data, and then injecting a resin that becomes the insulator 4c by insert molding or the like and separating the gate 4f. Therefore, the manufacturing steps are fewer and the coaxial busbar 4 can be manufactured more easily than the laminated busbar 9.
  • the power conversion device 1 includes a semiconductor element 2, a filter capacitor 3, a negative outer conductor 4a that connects the same polarity terminals of the semiconductor element 2 and the filter capacitor 3 outside the coaxial line, a positive inner conductor 4b that connects the other same polarity terminals of the semiconductor element and the electronic circuit component inside the coaxial line, and a coaxial bus bar 4 having an insulator 4c provided between the negative outer conductor 4a and the positive inner conductor 4b.
  • Embodiment 2 A power conversion device according to a second embodiment will be described with reference to Figures 5 to 14.
  • the same reference numerals as those in the first embodiment denote the same or corresponding parts.
  • Figure 5 is a configuration diagram showing a power conversion device according to embodiment 2 of the present disclosure, where Figure 5(a) is a plan view of the power conversion device 10 and Figure 5(b) is a side view of the power conversion device 10.
  • the power conversion device 10 includes a semiconductor element 2, a high-frequency transformer 11, a coaxial bus bar 4, a cooler 5, a frame 12, and a control board 13.
  • the power conversion device 10 transforms the voltage using electronic circuit components.
  • the electronic circuit components are, for example, high-frequency transformers 11. After the voltage transformation, the power conversion device 10 rectifies the current using semiconductor elements 2.
  • the semiconductor elements 2 are, for example, rectifier diodes.
  • the cooler 5 cools the semiconductor element 2 and the high-frequency transformer 11, which generate heat due to conduction.
  • the frame 12 secures the control board 13, which controls the load device, to the cooler 5.
  • FIG. 6 is a structural diagram of the coaxial busbar 4, where FIG. 6(a) is a perspective view of the coaxial busbar 4, FIG. 6(b) is a plan view of the coaxial busbar 4, FIG. 6(c) is a perspective exploded view of the coaxial busbar 4, FIG. 6(f) is a front view of the coaxial busbar 4, FIG. 6(d) is a cross-sectional view of the coaxial busbar 4 taken along line B-B in FIG. 6(f), and FIG. 6(e) is a left side view of the coaxial busbar 4. As shown in FIG. 6(c), the coaxial busbar 4 includes a negative outer conductor 4a, a positive inner conductor 4b, and an insulator 4c. The shape of the coaxial busbar 4 is linear.
  • the negative outer conductor 4a connects the negative terminal of the high-frequency transformer 11 and the negative terminal of the semiconductor element 2 outside the coaxial bus bar 4.
  • the positive inner conductor 4b connects the positive terminal of the high-frequency transformer 11 and the positive terminal of the semiconductor element 2 inside the coaxial bus bar 4.
  • the negative electrode external conductor 4a and the insulator 4c have a shape including a linear cylinder
  • the positive electrode internal conductor 4b has a shape including a linear cylinder.
  • Figure 7 shows a method for manufacturing a coaxial busbar for a power converter.
  • the negative outer conductor 4a and the positive inner conductor 4b are individually formed using a metal 3D printer, forging, extrusion, or the like.
  • the positive electrode internal conductor 4b is inserted into the insulator 4c molded from resin.
  • the coaxial busbar 4 can be manufactured, for example, by automatically forming the negative electrode outer conductor 4a and the positive electrode inner conductor 4b using a metal 3D printer, melting the metal with a laser while laminating them based on the created 3D data, and then assembling the negative electrode outer conductor 4a, the positive electrode inner conductor 4b, and the insulator 4c by inserting them, which means that there are fewer manufacturing steps and it can be manufactured more easily than the laminated busbar 9.
  • Figure 8 shows a first modified example of the second embodiment, where Figure 8(a) is an exploded perspective view of the coaxial busbar 4, Figure 8(b) is a cross-sectional view of the coaxial busbar 4 in Figure 8(a) taken along line C-C with the positive electrode internal conductor 4b and insulator 4c assembled into the negative electrode external conductor 4a, and Figure 8(c) is a left side view of the coaxial busbar 4.
  • the positive electrode internal conductor 4b is flat as shown in Figure 8(a). By making the positive electrode internal conductor 4b flat, conductor loss due to the skin effect can be suppressed.
  • Figure 9 shows a second modified example of the second embodiment, where Figure 9(a) shows the positive electrode inner conductor 4b of the coaxial busbar 4, Figure 9(b) shows a plan view of the coaxial busbar 4, Figure 9(c) shows an exploded perspective view of the coaxial busbar 4, Figure 9(f) shows a front view of the coaxial busbar 4, Figure 9(d) shows a cross-sectional view of the coaxial busbar 4 taken along line D-D in Figure 9(f), and Figure 9(e) shows a left side view of the coaxial busbar 4.
  • the positive electrode inner conductor 4b has three cylinders as shown in Figures 9(a) and 9(d).
  • the positive electrode internal conductor 4 b when the positive electrode internal conductor 4 b is in the shape of a single cylinder, when a high-frequency current is passed through it, the current is concentrated on the surface of the positive electrode internal conductor 4 b, and the current is less likely to flow through the center of the positive electrode internal conductor 4 b, resulting in a skin effect.
  • the positive electrode internal conductor 4b by forming the positive electrode internal conductor 4b into three cylinders as shown in Fig. 9(c), the total area through which the current flows on the surface is increased, and the resistance is reduced, so that the temperature rise can be suppressed.
  • the positive electrode internal conductor 4b is not limited to three cylinders, and may have two or more cylinders.
  • Figure 10 shows a third modified example of the second embodiment, where Figure 10(a) is an exploded perspective view of the coaxial busbar 4, Figure 10(b) is a left side view of the coaxial busbar 4, and Figure 10(c) is a cross-sectional view of the coaxial busbar 4 taken along line E-E in Figure 10(a).
  • the positive electrode internal conductor 4b is composed of a conductor having a crimp terminal with an insulating coating insulated by an insulator 4c as shown in Figure 10(a).
  • Figure 11 shows a fourth modified example of the second embodiment, and is a perspective view of the coaxial busbar 4.
  • the negative external conductor 4a has a plurality of disk-shaped cooling fins 4g that are concentric with the center of the cross-sectional circle of the cylindrical negative external conductor 4a, and are perpendicular to the conduction direction of the negative external conductor 4a.
  • the negative external conductor 4a can be cooled.
  • Fig. 12 shows a fifth modified example of the second embodiment, in which Fig. 12(a) is a perspective view of the coaxial bus bar 4 and Fig. 12(b) is a cross-sectional view taken along line F-F of the coaxial bus bar 4 in Fig. 12(a).
  • the negative electrode external conductor 4a includes a plurality of rectangular cooling fins 4h arranged radially from the center of the circle of the cross section of the cylindrical negative electrode external conductor 4a, along the negative electrode external conductor 4a, and parallel to the conduction direction of the negative electrode external conductor 4a, as shown in Fig. 12(b).
  • the negative outer conductor 4a can be effectively cooled by natural convection when the coaxial busbar 4 is attached in a vertical direction.
  • the direction of the fins may be changed depending on the direction of the cooling air, for example, when the coaxial busbar 4 is forcibly cooled by a fan.
  • Figure 13 shows a sixth modified example of the second embodiment, where Figure 13(a) is a plan view of the coaxial busbar 4, Figure 13(b) is an oblique exploded view of an insulating spacer 4i used in the coaxial busbar 4, Figure 13(c) is a left side view of the coaxial busbar 4, and Figure 13(d) is a front view of the coaxial busbar 4.
  • the coaxial busbar 4 has an insulating spacer 4i made of a material with an insulating effect, such as resin, between the terminal of the negative outer conductor 4a and the terminal of the positive inner conductor 4b. Since the insulating spacer 4i, the negative outer conductor 4a, and the positive inner conductor 4b are fixed by screws 4j, the coaxial busbar 4 can be incorporated into the power conversion device without the terminals being misaligned.
  • Figure 14 shows a seventh modified example of the second embodiment, where Figure 14(a) is a plan view of the coaxial busbar 4, Figure 14(b) is a perspective exploded view of an insulating spacer 4i used in the coaxial busbar 4, Figure 14(c) is a left side view of the coaxial busbar 4, and Figure 14(d) is a front view of the coaxial busbar 4.
  • the coaxial busbar 4 has an insulating spacer 4i between the terminal of the negative outer conductor 4a and the terminal of the positive inner conductor 4b, and there is a gap 4k between the negative outer conductor 4a and the positive inner conductor 4b.
  • the gap 4k prevents the negative outer conductor 4a and the positive inner conductor 4b from contacting each other, and the gap 4k serves as an insulator for the air, eliminating the need for the insulator 4c and reducing manufacturing costs.
  • the negative outer conductor 4a and the positive inner conductor 4b are coaxial and conduct in different directions, so that the magnetic fluxes generated by the conduction cancel each other out, allowing a large current to flow while suppressing the generation of magnetic flux in the coaxial busbar 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
PCT/JP2023/009996 2023-03-15 2023-03-15 電力変換装置 WO2024189811A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2025506343A JPWO2024189811A1 (enrdf_load_stackoverflow) 2023-03-15 2023-03-15
PCT/JP2023/009996 WO2024189811A1 (ja) 2023-03-15 2023-03-15 電力変換装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2023/009996 WO2024189811A1 (ja) 2023-03-15 2023-03-15 電力変換装置

Publications (1)

Publication Number Publication Date
WO2024189811A1 true WO2024189811A1 (ja) 2024-09-19

Family

ID=92754748

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/009996 WO2024189811A1 (ja) 2023-03-15 2023-03-15 電力変換装置

Country Status (2)

Country Link
JP (1) JPWO2024189811A1 (enrdf_load_stackoverflow)
WO (1) WO2024189811A1 (enrdf_load_stackoverflow)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59110308A (ja) * 1982-12-13 1984-06-26 日立電線株式会社 電力ケ−ブル放熱方法
JPH025824U (enrdf_load_stackoverflow) * 1988-06-27 1990-01-16
JPH08106960A (ja) * 1994-10-04 1996-04-23 Furukawa Electric Co Ltd:The 同軸ケーブル用コネクタ
JPH09135582A (ja) * 1995-11-07 1997-05-20 Toshiba Corp 電力変換装置
JPH10243631A (ja) * 1997-02-27 1998-09-11 Toshiba Corp 電力変換器
JP2007506248A (ja) * 2003-09-16 2007-03-15 コムスコープ インコーポレイテッド オブ ノース カロライナ 剥離可能な中心導体プレコートを有する同軸ケーブル
CN102570854A (zh) * 2011-10-21 2012-07-11 中国电器科学研究院有限公司 高频开关整流电源模块结构的设置方法及其结构
JP2017188372A (ja) * 2016-04-08 2017-10-12 矢崎総業株式会社 ノイズ低減シールドケーブル

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4385747B2 (ja) * 2003-12-03 2009-12-16 日産自動車株式会社 半導体装置の実装構造
JP6481413B2 (ja) * 2015-02-25 2019-03-13 アイシン精機株式会社 電力変換装置の冷却構造
JP2019088137A (ja) * 2017-11-08 2019-06-06 株式会社デンソー 電力変換装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59110308A (ja) * 1982-12-13 1984-06-26 日立電線株式会社 電力ケ−ブル放熱方法
JPH025824U (enrdf_load_stackoverflow) * 1988-06-27 1990-01-16
JPH08106960A (ja) * 1994-10-04 1996-04-23 Furukawa Electric Co Ltd:The 同軸ケーブル用コネクタ
JPH09135582A (ja) * 1995-11-07 1997-05-20 Toshiba Corp 電力変換装置
JPH10243631A (ja) * 1997-02-27 1998-09-11 Toshiba Corp 電力変換器
JP2007506248A (ja) * 2003-09-16 2007-03-15 コムスコープ インコーポレイテッド オブ ノース カロライナ 剥離可能な中心導体プレコートを有する同軸ケーブル
CN102570854A (zh) * 2011-10-21 2012-07-11 中国电器科学研究院有限公司 高频开关整流电源模块结构的设置方法及其结构
JP2017188372A (ja) * 2016-04-08 2017-10-12 矢崎総業株式会社 ノイズ低減シールドケーブル

Also Published As

Publication number Publication date
JPWO2024189811A1 (enrdf_load_stackoverflow) 2024-09-19

Similar Documents

Publication Publication Date Title
US5579217A (en) Laminated bus assembly and coupling apparatus for a high power electrical switching converter
US8910372B2 (en) Method of fabricating a choke assembly
CN102844825B (zh) 构成平面变压器和母线的装置
US20110221268A1 (en) Power Converter and In-Car Electrical System
US10714910B2 (en) System comprising a bus bar device and a power converter housing, and method for the production thereof, power converter for a vehicle, and vehicle
US20100195301A1 (en) Layered Structure Connection and Assembly
CN110521100A (zh) 电力转换装置用滤波器模块
JP6326038B2 (ja) 電気回路装置
JP5558543B2 (ja) スイッチング電源装置
CN102648503A (zh) 用于电感器件的绕组布置
US10770220B2 (en) Planar transformer layer, assembly of layers for planar transformer, and planar transformer
JP2012231616A (ja) 車載用電力変換装置
TWI802382B (zh) 電源變壓器的平面繞組結構
JP6647350B2 (ja) 電力変換装置
JPH05292756A (ja) 電力変換装置
US20240355534A1 (en) Hybrid transformers for power supplies
WO2024189811A1 (ja) 電力変換装置
US12183498B2 (en) Power conversion device
JP2017037946A (ja) 電力変換装置
US10734361B2 (en) Power switching module, converter integrating the latter and manufacturing method
US20230170125A1 (en) Inductor
WO2021235485A1 (ja) 電力変換装置および電力変換装置の製造方法
JPH0640741B2 (ja) スイッチング・レギュレータ用変圧器整流器組立体
JP2016086494A (ja) 車載用ｄｃｄｃコンバータ
JP6906874B2 (ja) 電力変換装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23927432

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2025506343

Country of ref document: JP