WO2018211562A1 - 配線部材及び電力変換装置 - Google Patents
配線部材及び電力変換装置 Download PDFInfo
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- WO2018211562A1 WO2018211562A1 PCT/JP2017/018212 JP2017018212W WO2018211562A1 WO 2018211562 A1 WO2018211562 A1 WO 2018211562A1 JP 2017018212 W JP2017018212 W JP 2017018212W WO 2018211562 A1 WO2018211562 A1 WO 2018211562A1
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- terminal
- semiconductor element
- wiring member
- insulating partition
- distance
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- 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
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- 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
- H02M7/5387—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 in a bridge configuration
- H02M7/53871—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 in a bridge configuration with automatic control of output voltage or current
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- H10W70/611—
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- H10W70/65—
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- H10W90/00—
-
- 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
- H02M7/493—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 the static converters being arranged for operation in parallel
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
Definitions
- the present invention relates to a wiring member for electrically connecting semiconductor element modules to each other, and a power conversion device using the wiring member.
- Patent Document 1 listed below discloses a power conversion device having a configuration in which semiconductor element modules are electrically connected to each other with a bus bar.
- Patent Document 2 in a semiconductor element module having a package structure in which a plurality of sets of semiconductor switching elements are built in a mold case, a terminal block portion on which a control terminal formed on a side edge of the mold case is arranged is described.
- the height and thickness dimension of the insulating partition are set according to international standards (hereinafter referred to as Non-Patent Document 1). It is disclosed that the setting is made in conformity with the spatial distance defined by “IEC 60077-1” as appropriate.
- Patent Document 2 is effective for reducing the size of the semiconductor element module itself, but does not contribute to shortening the distance between the main terminals of the semiconductor element modules.
- an insulation distance which is a spatial distance according to a voltage that can be applied to the main terminals, between the semiconductor element modules.
- the insulation distance between the main terminals in semiconductor element modules has become a bottleneck that determines the size of the power converter.
- the distance between the semiconductor element modules cannot be made smaller than the insulation distance, which has been a limitation on miniaturization of the power converter.
- the present invention has been made in view of the above, and an object of the present invention is to obtain a wiring member that can realize that the distance between the main terminals in the semiconductor element modules is made smaller than the insulation distance.
- the present invention provides a first main terminal formed in a first semiconductor element module to which a first potential is applied, and a second semiconductor element module.
- the wiring member is formed and electrically connected to a second main terminal to which a second potential different from the first potential is applied.
- the wiring member includes an insulating partition that is erected on the wiring member so as to block a line of sight between the first main terminal and the second main terminal.
- the power converter can be reduced in size.
- FIG. 1 is a circuit diagram showing a configuration example of a power conversion device according to a first embodiment.
- the circuit diagram which shows the other structural example of the power converter device which concerns on Embodiment 1.
- FIG. The top view which shows arrangement
- FIG. FIG. 5 is a cross-sectional view taken along line VI-VI in FIG. 5 schematically showing a connection state between the wiring member and the semiconductor element module according to the first embodiment.
- FIG. 10 is a diagram for explaining the effect of the wiring member different from FIG.
- FIG. 1 is a circuit diagram illustrating a configuration example of the power conversion device according to the first embodiment.
- FIG. 2 is a circuit diagram illustrating another configuration example of the power conversion device according to the first embodiment.
- the power conversion device includes an input circuit 2 including at least a switch, a filter capacitor, and a filter reactor, and switching elements 4a1, 4a2, 5a1, 5a2, 6a1, 6a2, 4b1, 4b2, 5b1, Inverter circuit 3 having 5b2, 6b1, 6b2 and connecting at least one motor 8, switching elements 4a1, 4a2, 5a1, 5a2, 6a1, 6a2, 4b1, 4b2, 5b1, 5b2, 6b1, 6b2
- a control unit 7 is provided for generating and outputting a pulse width modulation (hereinafter referred to as “PWM”) signal for controlling the pulse width modulation.
- PWM pulse width modulation
- An example of the motor 8 connected to the inverter circuit 3 is an induction motor or a synchronous motor.
- One end of the input circuit 2 is connected to the overhead line 50 via the current collector 51, and the other end is connected to a rail 52 that applies a ground potential via a wheel 53.
- DC power or AC power supplied from the overhead wire 50 is supplied to the input terminal of the input circuit 2 through the current collector 51, and power generated at the output terminal of the input circuit 2 is supplied to the inverter circuit 3. .
- a switching element 4a1 that is a positive side switching element and a switching element 4b1 that is a negative side switching element are connected in series to form a U-phase first leg, and the switching element that is a positive side switching element 4a2 and switching element 4b2 which is a negative side switching element are connected in series to form a U-phase second leg.
- the positive switching element is also referred to as a positive arm or an upper arm, and the negative switching element is also referred to as a negative arm or a lower arm.
- the first leg of the U phase is represented by U1
- the second leg of the U phase is represented by U2.
- switching element 5a1 and switching element 5b1 are connected in series to form a V-phase first leg, and switching element 5a2 and switching element 5b2 are connected in series to form a V-phase second leg.
- the switching element 6a1 and the switching element 6b1 are connected in series to form a W-phase first leg, and the switching element 6a2 and switching element 6b2 are connected in series to form a W-phase second leg.
- the first leg of the V phase is represented by V1
- the second leg of the V phase is represented by V2
- the first leg of the W phase is represented by W1
- the second leg of the W phase is represented by W2.
- the inverter circuit 3 constitutes a three-phase inverter circuit in which the first and second legs in each phase are connected in parallel.
- the switching elements 4a1, 4a2, 5a1, 5a2, 6a1, 6a2, 4b1, 4b2, 5b1, 5b2, 6b1, and 6b2 each include a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) with a built-in antiparallel diode or An IGBT (Insulated Gate Bipolar Transistor) is suitable.
- MOSFET Metal-Oxide-Semiconductor Field-Effect Transistor
- IGBT Insulated Gate Bipolar Transistor
- the control unit 7 performs PWM control of the switching elements 4a1, 4a2, 5a1, 5a2, 6a1, 6a2, 4b1, 4b2, 5b1, 5b2, 6b1, 6b2 of the inverter circuit 3 by the PWM signal.
- the inverter circuit 3 converts the DC voltage applied from the input circuit 2 into an AC voltage having an arbitrary frequency and an arbitrary voltage and applies it to the motor 8 to drive the motor 8.
- the switching element when the switching element is mounted as a chip, the yield decreases as the chip area increases. On the other hand, if the chip area is reduced, the yield when taking out from the wafer can be improved.
- a switching element hereinafter referred to as “SiC element”
- SiC element silicon carbide
- the inverter circuit 3 of FIG. 1 in which the legs of each phase are configured in parallel is more than the inverter circuit 3A of FIG. 2 having a single leg for each phase. It is convenient for price reduction. In other words, in a large-capacity application such as a power conversion device for driving a railway vehicle, it is possible to realize a reduction in the price of the power conversion device by parallelizing the legs of each phase as shown in FIG. Become.
- SiC is an example of a wide band gap semiconductor having a characteristic that the band gap is larger than that of silicon (Si).
- the characteristics of a gallium nitride-based material, which is another example of a wide bandgap semiconductor, or a semiconductor formed using diamond also have many similarities to SiC. For this reason, the configuration in which the legs of each phase are arranged in parallel is effective for achieving both a large capacity and a low price even when a wide band gap semiconductor other than SiC is used.
- FIG. 3 is a plan view showing the arrangement of each terminal in the semiconductor element module 12 used in the power conversion device according to the first embodiment.
- FIG. 4 is a circuit diagram in which the semiconductor element module 12 shown in FIG. 3 is applied to the inverter circuit 3 shown in FIG.
- the semiconductor element module 12 used in the power conversion device according to the first embodiment includes a pair of semiconductor switching elements connected in series inside the package 30 that is a module housing. Yes.
- the long direction of the package 30 is the X-axis direction
- the short direction of the package 30 is the Y-axis direction
- the direction orthogonal to both the X-axis direction and the Y-axis direction is the Z-axis direction.
- the package 30 is provided with a first terminal M1 and a second terminal M2 near one end face in the X-axis direction of the package 30, and a third terminal M3 near the other end face.
- the first terminal M1 constitutes a positive DC terminal P which is one of main terminals in the semiconductor element module 12
- the second terminal M2 constitutes a negative DC terminal N which is another main terminal in the semiconductor element module 12.
- the third terminal M3 constitutes an AC terminal AC that is another main terminal in the semiconductor element module 12.
- the semiconductor element module 12U1 applied to the U1 phase is reverse to the MOSFET 4a1s, which is an example of a transistor element, and a diode (hereinafter referred to as “FWD”) 4a1d that operates as a so-called flywheel diode (Free Wheeling Diode).
- MOSFET 4a1s which is an example of a transistor element
- FWD 4a1d that operates as a so-called flywheel diode (Free Wheeling Diode).
- the switching element 4a1 and the switching element 4b1 are connected in series and accommodated in a package 30 that is a module housing, and constitutes a switching element pair in the semiconductor element module 12U1.
- the semiconductor element module 12U2 applied to the U2 phase is configured similarly to the semiconductor element module 12U1.
- the semiconductor element modules 12V1, 12V2, 12W1, and 12W2 applied to the V1 phase and the V2 phase, and the W1 phase and the W2 phase, respectively, are configured in the same manner as the semiconductor element module 12U1.
- each of the semiconductor element modules 12U1, 12U2, 12V1, 12V2, 12W1, and 12W2 is a 2-in-1 module that accommodates two switching elements connected in series.
- the drain that is the positive electrode of the MOSFET 4a1s is electrically connected to the first terminal M1
- the source that is the negative electrode of the MOSFET 4b1s is electrically connected to the second terminal M2
- the source that is the negative electrode of the MOSFET 4a1s and the positive electrode of the MOSFET 4b1s is electrically connected to the third terminal M3.
- the first terminals M1 of the semiconductor element modules 12U1, 12U2, 12V1, 12V2, 12W1, 12W2 are electrically connected to the positive bus 11P drawn from the positive DC terminal P of the filter capacitor 10, and the semiconductor element modules 12U1, 12U2 , 12V1, 12V2, 12W1, 12W2 are electrically connected to the negative bus 11N drawn from the negative DC terminal N of the filter capacitor 10.
- the filter capacitor 10 is a capacitor for accumulating DC power necessary for power conversion, and is a power supply source in the power conversion device.
- the third terminal M3 of the semiconductor element module 12U1 and the third terminal M3 of the semiconductor element module 12U2 are electrically connected to form a U-phase AC terminal, and are electrically connected to the U-phase of the motor 8.
- the third terminal M3 of the semiconductor element module 12V1 and the third terminal M3 of the semiconductor element module 12V2 are electrically connected to form a V-phase AC terminal, and are electrically connected to the V-phase of the motor 8.
- the third terminal M3 of the semiconductor element module 12W1 and the third terminal M3 of the semiconductor element module 12W2 are electrically connected to form a W-phase AC terminal, and are electrically connected to the W-phase of the motor 8.
- the semiconductor element modules 12U1, 12U2, 12V1, 12V2, 12W1, and 12W2 are mounted on the inverter circuit 3 and operate.
- the inverter circuit 3 operates, the potential output from the positive DC terminal P of the filter capacitor 10 is applied to the first terminal M1 of each semiconductor element module, and the filter capacitor is applied to the second terminal M2 of each semiconductor element module.
- the potential output from the 10 negative DC terminals N is applied.
- the third terminal M3 in each semiconductor element module has a potential output from the positive DC terminal P of the filter capacitor 10 or a negative DC terminal of the filter capacitor 10 via the switching element that is turned on in accordance with the switching operation of the switching element.
- One of the potentials output by N is applied.
- MOSFETs are illustrated as the switching elements 4a1 and 4b1 mounted on the semiconductor element module 12U1, but other elements may be used. Examples of switching elements other than MOSFETs include IGBT or IPM (Intelligent Power Module).
- the package 30 of the semiconductor element module 12 is formed in a horizontally long shape.
- the first terminal M1 is provided with two electrodes 35, and each electrode 35 is provided with a fastening point 32P.
- the second terminal M2 is provided with two electrodes 40, and each electrode 40 is provided with a fastening point 32N.
- the third terminal M3 is provided with three electrodes 37, and each electrode 37 is provided with a fastening point 32AC.
- the number of fastening points 32P on the electrode 35 of the first terminal M1 and the number of fastening points 32N of the electrode 40 on the second terminal M2 are two, and the number of fastening points 32AC on the electrode 37 of the third terminal M3.
- the number is three, the number of these fastening points may be changed according to the current capacity. That is, the number of the fastening points 32P at the first terminal M1 and the number of the fastening points 32N at the second terminal M2 may be 3 or more, respectively. Further, the number of fastening points 32AC in the third terminal M3 may be two or four or more.
- the two electrodes 35 in the first terminal M1 are arranged in the Y axis direction of the package 30 and spaced apart from each other on the short side portion 33 on one side of the package 30 in the X axis direction.
- the two electrodes 40 in the second terminal M2 are arranged in parallel with the arrangement of the two electrodes 35 in the first terminal M1 and on the inner side of the package 30, that is, on the center side with respect to the first terminal M1.
- the three electrodes 37 in the third terminal M3 are arranged in the Y axis direction of the package 30 and spaced apart from each other on the short side portion 34 on the other side in the X axis direction of the package 30.
- the electrodes of the first terminal M1, the second terminal M2, and the third terminal M3 are arranged such that the Y-axis direction center of the short side portion 33 of the package 30 and the Y-axis direction of the short side portion 34 of the package 30 are arranged. It is arrange
- the one electrode 35 in the first terminal M1 and the one electrode 40 in the second terminal M2 are arranged apart from each other by a distance d in the X-axis direction.
- the distance d is a distance necessary for insulation, that is, an insulation distance.
- the distance d conforms to IEC 60077-1 according to the difference between the voltage applied to the first terminal M1 and the voltage applied to the second terminal M2, that is, the potential difference between the first terminal M1 and the second terminal M2. Set to value.
- the two fastening points 32P in the first terminal M1 are arranged so that one side 35a on the outer side at the fastening point 32P is aligned with one side 33a in the short side 33 on one side of the package 30. Further, a pedestal portion 36 for mounting the three fastening points 32AC in the third terminal M3 is provided in the short side portion 34 on the other side of the package 30. The three fastening points 32AC in the third terminal M3 are arranged so that the outer side 37a of the fastening point 32AC is aligned with the longitudinal side 36a of the pedestal portion 36.
- the first terminal M1 is arranged on the outer side of the package 30 and the second terminal M2 is arranged on the inner side of the package 30, but these relations may be reversed. That is, the second terminal M2 may be disposed on the outer side of the package 30, and the first terminal M1 may be disposed on the inner side of the package 30.
- FIG. 5 is a plan view schematically showing an arrangement example of two semiconductor element modules in the power conversion device of the first embodiment.
- 6 is a cross-sectional view taken along the line VI-VI in FIG. 5 schematically showing the connection state between the laminated bus bar, which is the wiring member according to the first embodiment, and the semiconductor element module.
- FIG. 7 is a plan view when viewed from the direction of arrow A in FIG.
- FIG. 8 is a diagram for explaining the effect of the wiring member according to the first embodiment.
- FIG. 9 is a diagram for explaining the effect of the wiring member different from FIG.
- FIG. 5 shows a semiconductor element module 12W1 constituting the W1 phase and a semiconductor element module 12W constituting the W2 phase.
- the first terminal M1 forming the positive DC terminal in the semiconductor element modules 12W1 and 12W2 is expressed as “P”
- the second terminal M2 forming the negative DC terminal is expressed as “N”
- the AC terminal is
- the third terminal M3 formed is denoted as “AC”.
- the semiconductor element modules 12W1 and 12W2 are arranged so that the positive DC terminal P in the semiconductor element module 12W1 and the AC terminal AC in the semiconductor element module 12W2 face each other.
- the semiconductor element modules 12W1 and 12W2 are semiconductor element modules of the same phase. That is, the positive DC terminal P and the AC terminal AC in the two semiconductor element modules constituting the same phase semiconductor element module are arranged so as to face each other.
- illustration of U-phase and V-phase semiconductor element modules is omitted, but they are arranged in the same manner as the W-phase semiconductor element modules.
- the W-phase semiconductor element modules 12W1 and 12W2 are set as a W-phase semiconductor element module group
- the arrangement direction of the semiconductor element modules is the X-axis direction that is the same direction as the semiconductor element modules 12W1 and 12W2, and the U-phase semiconductor element module group and the V-phase in the Y-axis direction orthogonal to the arrangement direction of the semiconductor element modules 12W1 and 12W2 It is conceivable to arrange a group of semiconductor element modules.
- FIG. 6 schematically shows a state in which the positive DC terminals P, the negative DC terminals N, and the AC terminals AC in the semiconductor element modules 12W1 and 12W2 are electrically connected by the wiring member 44.
- the wiring member 44 has a flat plate shape.
- An example of the wiring member 44 is a laminated bus bar.
- An insulating partition 45 is erected on the wiring member 44 in a direction orthogonal to the extending direction of the wiring member 44.
- the insulating partition 45 has a flat plate shape. As shown in FIGS. 6 and 7, the insulating partition 45 is interposed between the positive DC terminal P in the semiconductor element module 12W1 and the AC terminal AC in the semiconductor element module 12W2, and the line of sight between these terminals is defined. It is arranged to block.
- the insulating partition 45 may be made of any material as long as it is an insulator. When a laminated bus bar is used for the wiring member 44, the insulating partition 45 can be integrally formed with the wiring member 44 if the material of the insulating partition 45 is a laminate material. Further, the insulating partition wall 45 is not limited to the illustrated flat plate shape, and may have any shape.
- the position where the insulating partition 45 is arranged in the X-axis direction of the wiring member 44 is arbitrary. That is, as long as it is between the semiconductor element module 12W1 and the semiconductor element module 12W2, the insulating partition 45 may be disposed at any position. Further, the length L1 of the insulating partition 45 in the Z-axis direction may be larger than the thickness of the positive DC terminal P in the Z-axis direction and the thickness of the AC terminal AC in the Z-axis direction. The direction in which the insulating partition 45 is formed upright may not be 90 degrees with respect to the extending direction of the wiring member 44, and may be formed inclined. In FIG.
- the length of the insulating partition 45 in the depth direction that is, the length L2 along the short side direction of the semiconductor element modules 12W1 and 12W2 is shielded so that the positive DC terminal P and AC terminal AC cannot be seen from each other. It suffices to have a possible length.
- the positive DC terminal P in the semiconductor element module 12W1 is a main terminal to which a positive electrode potential that is a first potential output from the filter capacitor 10 is applied.
- the AC terminal AC in the semiconductor element module 12W2 has the positive potential of the filter capacitor 10 and the output of the filter capacitor 10 according to the on / off of one and the other switching elements constituting the switching element pair.
- 2 is a main terminal to which a negative electrode potential of 2 is appropriately applied. Therefore, there is a relationship between the positive DC terminal P and the AC terminal AC that are terminals that can generate a high voltage potential difference.
- terminals that can generate a high voltage potential difference are called “high voltage different potential terminals”, and one of the high voltage different potential terminals is called a “first main terminal”.
- the other may be referred to as a “second main terminal”.
- first semiconductor element module When one semiconductor element module corresponding to the semiconductor element module 12W1 is referred to as a “first semiconductor element module” and the other semiconductor element module corresponding to the semiconductor element module 12W2 is referred to as a “second semiconductor element module”.
- the relationship between the negative DC terminal N and the AC terminal AC is also between the high voltage different potential terminals
- the relationship between the positive DC terminal P and the negative DC terminal N is also between the high voltage different potential terminals.
- FIG. 8 the site
- a1 Distance between positive DC terminal P of semiconductor element module 12W1 and the top of insulating partition 45 a2: Distance between AC terminal AC of semiconductor element module 12W2 and the top of insulating partition 45 b: Semiconductor element module 12W1, The height of the insulating partition 45 measured from the main surface of 12W2 c1: The distance between the end of the positive DC terminal P in the wiring member 44 and the base of the insulating partition 45 c2: The end of the AC terminal AC in the wiring member 44 Distance between the base of the insulating partition 45 e1: Distance between the semiconductor element module 12W1 and the semiconductor element module 12W2
- the main surfaces of the semiconductor element modules 12W1 and 12W2 are electrode mounting surfaces of the semiconductor element modules 12W1 and 12W2.
- the base of the insulating partition 45 is an attachment portion of the insulating partition 45 in the wiring member 44.
- the length L1 of the insulating partition 45 defined in FIG. 6 is larger than the thickness of the positive electrode DC terminal P and the thickness of the AC terminal AC, the relationship of “a1 + a2> c1 + c2” occurs. Thereby, the inter-module distance e1 can be made smaller than the insulation distance a1 + a2.
- the relationship that “the length L1 of the insulating partition 45 is larger than the thickness of the positive DC terminal P and the AC terminal AC” is that the height b of the insulating partition 45 defined in FIG. 8 is “b> 0”. It may be paraphrased that there is.
- the shortening rate k1 is an index indicating a measure of how much the inter-module distance can be reduced with respect to the insulation distance. A smaller value of the shortening rate k1 means that there is a shortening effect.
- the value of the shortening rate k1 is obtained. You can see that it gets smaller. However, in reality, it is necessary to consider factors such as dimensional accuracy when manufacturing the insulating partition 45 and an insulating effect due to air interposed between the insulating partition 45 and the module housing. In any of the setting examples 1 to 3, the effect of shortening the inter-module distance with respect to the insulation distance can be obtained. For this reason, it can be said that it is a preferred embodiment to determine the position of the insulating partition 45 in consideration of factors such as dimensional accuracy when manufacturing the insulating partition 45 and required insulation distance.
- the calculated values when the height b of the insulating partition 45 is higher than the setting examples 1 to 3 are shown.
- the height b of the insulating partition wall 45 is changed from “10 mm” to “12 mm” under the conditions of the setting examples 1 to 3 described above.
- the said setting example is an illustration and the height of the insulation partition 45 is not restricted to the thing of the said setting example.
- the distance between the main terminals in the semiconductor element modules can be made smaller than the insulation distance, so that the power converter can be miniaturized.
- FIG. 10 is a diagram for explaining the effect of the wiring member according to the second embodiment.
- FIG. 11 is a diagram for explaining the effect of the wiring member different from that in FIG. 10.
- one insulating partition 45 is formed in a direction orthogonal to the extending direction of the wiring member 44.
- two insulating partitions 45A and 45B are formed. This is a structural difference.
- the insulating partition 45A is disposed along the side portion 33b of the semiconductor element module 12W1
- the insulating partition 45B is disposed along the side portion 33c of the semiconductor element module 12W2.
- FIG. 10 shows a case where the insulating partition walls 45A and 45B are arranged at positions symmetrical with respect to the center line K2 drawn between the semiconductor element module 12W1 and the semiconductor element module 12W2. Illustrated.
- a1 Distance between top of insulating partition 45A and top of insulating partition 45B
- a2 Distance between positive electrode DC terminal P of semiconductor element module 12W1 and top of insulating partition 45A, and AC terminal AC of semiconductor element module 12W2 B: height of insulating partition walls 45A and 45B measured from the main surface of semiconductor element modules 12W1 and 12W2 c: end of positive DC terminal P in wiring member 44 and insulating partition wall 45A And the distance between the end of the AC terminal AC in the wiring member 44 and the base of the insulating partition wall 45B.
- ⁇ Setting example 7> (conditions) ⁇ Insulation distance a1 + 2 ⁇ a2: 40mm ⁇ Length of a1 in the insulation distance: 10 mm -Length of a2 in the insulation distance: 15mm ⁇ Insulation partition wall 45A, 45B height b: 5 mm (Calculated values) ⁇ Distance between modules e3: 38.3 mm -Length of the module distance: 14.15 mm ⁇ Reduction rate k1: 0.84
- ⁇ Setting example 8> (conditions) ⁇ Insulation distance a1 + 2 ⁇ a2: 40mm ⁇ Length of a1 in the insulation distance: 10 mm -Length of a2 in the insulation distance: 15mm ⁇ Insulation partition wall 45A, 45B height b: 10 mm (Calculated values) ⁇ Distance between modules e3: 32.4 mm ⁇ Length of c in the distance between modules: 11.2 mm ⁇ Reduction rate k1: 0.81
- ⁇ Setting example 9> (conditions) ⁇ Insulation distance a1 + 2 ⁇ a2: 40mm ⁇ Length of a1 in the insulation distance: 30 mm -Length of a2 in the insulation distance: 5mm ⁇ Insulation partition wall 45A, 45B height b: 5 mm -Position of insulating partition 45A: left end between positive DC terminal P and AC terminal AC-Position of insulating partition 45B: right end between positive DC terminal P and AC terminal AC (calculated value) ⁇ Distance between modules e4: 30.0mm ⁇ Reduction rate k1: 0.75
- the present invention is not limited to this.
- Application to a power conversion device using at least two semiconductor element modules is possible. Examples of such a power converter include a half-bridge inverter circuit, a single-phase inverter circuit, a chopper circuit, a single-phase converter circuit, and a three-phase converter circuit.
- the configuration shown in the above embodiment shows an example of the content of the present invention, and can be combined with another known technique, and can be combined without departing from the gist of the present invention. It is also possible to omit or change a part of.
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Abstract
Description
図1は、実施の形態1に係る電力変換装置の構成例を示す回路図である。図2は、実施の形態1に係る電力変換装置の他の構成例を示す回路図である。
a2:半導体素子モジュール12W2の交流端子ACと絶縁隔壁45の頂部との間の距離
b:半導体素子モジュール12W1,12W2の主面から測った絶縁隔壁45の高さ
c1:配線部材44における正極直流端子Pの端部と絶縁隔壁45の基部との間の距離
c2:配線部材44における交流端子ACの端部と絶縁隔壁45の基部との間の距離
e1:半導体素子モジュール12W1と半導体素子モジュール12W2との間の距離
(条件)
・絶縁距離a1+a2:40mm
・絶縁隔壁45の高さb:10mm
・絶縁隔壁45の位置:正極直流端子Pと交流端子ACとの間の中央
(計算値)
・モジュール間距離e1:34.6mm
・短縮率k1:0.87
(条件)
・絶縁距離a1+a2:40mm
・絶縁距離のうちのa1の長さ:25mm
・絶縁距離のうちのa2の長さ:15mm
・絶縁隔壁45の高さb:10mm
(計算値)
・モジュール間距離e1:34.1mm
・モジュール間距離のうちのc1の長さ:22.9mm
・モジュール間距離のうちのc2の長さ:11.2mm
・短縮率k1:0.85
(条件)
・絶縁距離a1+a2:40mm
・絶縁距離のうちのa1の長さ:10mm
・絶縁距離のうちのa2の長さ:30mm
・絶縁隔壁45の高さb:10mm
・絶縁隔壁45の位置:正極直流端子Pと交流端子ACとの間の左端
(計算値)
・モジュール間距離e2:28.3mm
・短縮率k1:0.71
(条件)
・絶縁距離a1+a2:40mm
・絶縁隔壁45の高さb:12mm
・絶縁隔壁45の位置:正極直流端子Pと交流端子ACとの間の中央
(計算値)
・モジュール間距離e1:32.0mm
・短縮率k1:0.80
(条件)
・絶縁距離a1+a2:40mm
・絶縁距離のうちのa1の長さ:25mm
・絶縁距離のうちのa2の長さ:15mm
・絶縁隔壁45の高さb:12mm
(計算値)
・モジュール間距離e1:30.9mm
・モジュール間距離のうちのc1の長さ:21.9mm
・モジュール間距離のうちのc2の長さ:9.0mm
・短縮率k1:0.77
(条件)
・絶縁距離a1+a2:40mm
・絶縁距離のうちのa1の長さ:12mm
・絶縁距離のうちのa2の長さ:28mm
・絶縁隔壁45の高さb:12mm
・絶縁隔壁45の位置:正極直流端子Pと交流端子ACとの間の左端
(計算値)
・モジュール間距離e2:25.3mm
・短縮率k1:0.63
・設定例2と設定例5との比較:k2=0.77/0.85≒0.91
・設定例3と設定例6との比較:k2=0.63/0.71≒0.89
次に、実施の形態2に係る配線部材における要部の構成について、図10及び図11の図面を参照して説明する。図10は、実施の形態2に係る配線部材による効果の説明に供する図である。図11は、図10とは異なる配線部材による効果の説明に供する図である。
a2:半導体素子モジュール12W1の正極直流端子Pと絶縁隔壁45Aの頂部との間の距離、及び半導体素子モジュール12W2の交流端子ACと絶縁隔壁45Bの頂部との間の距離
b:半導体素子モジュール12W1,12W2の主面から測った絶縁隔壁45A,45Bの高さ
c:配線部材44における正極直流端子Pの端部と絶縁隔壁45Aの基部との間の距離、及び配線部材44における交流端子ACの端部と絶縁隔壁45Bの基部との間の距離
e3:モジュール間距離
なお、モジュール間距離e3と、距離a,c1との間には、“e3=a1+2×c”の関係がある。
(条件)
・絶縁距離a1+2×a2:40mm
・絶縁距離のうちのa1の長さ:10mm
・絶縁距離のうちのa2の長さ:15mm
・絶縁隔壁45A,45Bの高さb:5mm
(計算値)
・モジュール間距離e3:38.3mm
・モジュール間距離のうちのcの長さ:14.15mm
・短縮率k1:0.84
(条件)
・絶縁距離a1+2×a2:40mm
・絶縁距離のうちのa1の長さ:10mm
・絶縁距離のうちのa2の長さ:15mm
・絶縁隔壁45A,45Bの高さb:10mm
(計算値)
・モジュール間距離e3:32.4mm
・モジュール間距離のうちのcの長さ:11.2mm
・短縮率k1:0.81
(条件)
・絶縁距離a1+2×a2:40mm
・絶縁距離のうちのa1の長さ:30mm
・絶縁距離のうちのa2の長さ:5mm
・絶縁隔壁45A,45Bの高さb:5mm
・絶縁隔壁45Aの位置:正極直流端子Pと交流端子ACとの間の左端
・絶縁隔壁45Bの位置:正極直流端子Pと交流端子ACとの間の右端
(計算値)
・モジュール間距離e4:30.0mm
・短縮率k1:0.75
(条件)
・絶縁距離a1+2×a2:40mm
・絶縁距離のうちのa1の長さ:10mm
・絶縁距離のうちのa2の長さ:15mm
・絶縁隔壁45A,45Bの高さb:10mm
・絶縁隔壁45Aの位置:正極直流端子Pと交流端子ACとの間の左端
・絶縁隔壁45Bの位置:正極直流端子Pと交流端子ACとの間の右端
(計算値)
・モジュール間距離e4:20.0mm
・短縮率k1:0.5
Claims (6)
- 第1の半導体素子モジュールに形成され、第1の電位が印加される第1の主端子と、第2の半導体素子モジュールに形成され、前記第1の電位とは異なる第2の電位が印加される第2の主端子との間を電気的に接続する配線部材であって、
前記第1の主端子と前記第2の主端子との間の見通し線を遮るように、前記配線部材に起立形成される絶縁隔壁を備えることを特徴とする配線部材。 - 前記絶縁隔壁の数が複数であることを特徴とする請求項1に記載の配線部材。
- 前記第1の主端子は正極直流端子であり、前記第2の主端子は交流端子であることを特徴とする請求項1又は2に記載の配線部材。
- 前記第1の主端子は正極直流端子であり、前記第2の主端子は負極直流端子であることを特徴とする請求項1又は2に記載の配線部材。
- 前記第1の主端子は交流端子であり、前記第2の主端子は負極直流端子であることを特徴とする請求項1又は2に記載の配線部材。
- 請求項1から5の何れか1項に記載の配線部材を用いて構成されたことを特徴とする電力変換装置。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2017/018212 WO2018211562A1 (ja) | 2017-05-15 | 2017-05-15 | 配線部材及び電力変換装置 |
| DE112017007541.6T DE112017007541B4 (de) | 2017-05-15 | 2017-05-15 | Leistungswandlereinrichtung |
| US16/611,083 US10937737B2 (en) | 2017-05-15 | 2017-05-15 | Wiring member and power conversion device |
| JP2017548246A JP6338790B1 (ja) | 2017-05-15 | 2017-05-15 | 配線部材及び電力変換装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2017/018212 WO2018211562A1 (ja) | 2017-05-15 | 2017-05-15 | 配線部材及び電力変換装置 |
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| WO2018211562A1 true WO2018211562A1 (ja) | 2018-11-22 |
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| PCT/JP2017/018212 Ceased WO2018211562A1 (ja) | 2017-05-15 | 2017-05-15 | 配線部材及び電力変換装置 |
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| US (1) | US10937737B2 (ja) |
| JP (1) | JP6338790B1 (ja) |
| DE (1) | DE112017007541B4 (ja) |
| WO (1) | WO2018211562A1 (ja) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003046035A (ja) * | 2001-07-26 | 2003-02-14 | Hitachi Ltd | パワー半導体装置 |
| JP2011151981A (ja) * | 2010-01-22 | 2011-08-04 | Mitsubishi Electric Corp | 車載用電力変換装置 |
| JP2012005301A (ja) * | 2010-06-18 | 2012-01-05 | Fuji Electric Co Ltd | パワー半導体モジュール |
| JP2013090529A (ja) * | 2011-10-21 | 2013-05-13 | Hitachi Constr Mach Co Ltd | 電力変換装置 |
| JP2014036509A (ja) * | 2012-08-09 | 2014-02-24 | Mitsubishi Electric Corp | 3レベル電力変換装置 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010002627B4 (de) * | 2010-03-05 | 2023-10-05 | Infineon Technologies Ag | Niederinduktive Leistungshalbleiterbaugruppen |
| CN103354971B (zh) * | 2011-02-10 | 2016-01-20 | 三菱电机株式会社 | 功率转换装置 |
| CN104160504B (zh) * | 2012-03-28 | 2017-05-17 | 富士电机株式会社 | 半导体装置和半导体装置的制造方法 |
| DE102014110617B4 (de) * | 2014-07-28 | 2023-05-04 | Infineon Technologies Ag | Leistungshalbleitermodulsystem mit hoher Isolationsfestigkeit und Verfahren zur Herstellung einer Leistungshalbleitermodulanordnung mit einer hohen Isolationsfestigkeit |
-
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- 2017-05-15 US US16/611,083 patent/US10937737B2/en active Active
- 2017-05-15 WO PCT/JP2017/018212 patent/WO2018211562A1/ja not_active Ceased
- 2017-05-15 DE DE112017007541.6T patent/DE112017007541B4/de active Active
- 2017-05-15 JP JP2017548246A patent/JP6338790B1/ja active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003046035A (ja) * | 2001-07-26 | 2003-02-14 | Hitachi Ltd | パワー半導体装置 |
| JP2011151981A (ja) * | 2010-01-22 | 2011-08-04 | Mitsubishi Electric Corp | 車載用電力変換装置 |
| JP2012005301A (ja) * | 2010-06-18 | 2012-01-05 | Fuji Electric Co Ltd | パワー半導体モジュール |
| JP2013090529A (ja) * | 2011-10-21 | 2013-05-13 | Hitachi Constr Mach Co Ltd | 電力変換装置 |
| JP2014036509A (ja) * | 2012-08-09 | 2014-02-24 | Mitsubishi Electric Corp | 3レベル電力変換装置 |
Also Published As
| Publication number | Publication date |
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| DE112017007541B4 (de) | 2025-11-27 |
| JP6338790B1 (ja) | 2018-06-06 |
| DE112017007541T5 (de) | 2020-01-23 |
| JPWO2018211562A1 (ja) | 2019-06-27 |
| US10937737B2 (en) | 2021-03-02 |
| US20200152575A1 (en) | 2020-05-14 |
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