WO2015075976A1 - 電力変換装置 - Google Patents
電力変換装置 Download PDFInfo
- Publication number
- WO2015075976A1 WO2015075976A1 PCT/JP2014/070881 JP2014070881W WO2015075976A1 WO 2015075976 A1 WO2015075976 A1 WO 2015075976A1 JP 2014070881 W JP2014070881 W JP 2014070881W WO 2015075976 A1 WO2015075976 A1 WO 2015075976A1
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- WIPO (PCT)
- Prior art keywords
- voltage terminal
- housing
- circuit board
- power conversion
- power
- Prior art date
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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
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/0017—Casings, cabinets or drawers for electric apparatus with operator interface units
-
- 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
- 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
-
- 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
- H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
- H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
- H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/79—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with 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
- H02M7/797—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with 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
Definitions
- the present invention relates to a power conversion device.
- a smoothing capacitor and IGBT are mounted on a substrate having a water cooling mechanism, and a power conversion circuit is configured by a power supply bus bar to configure the inverter.
- An integrated component is known (Patent Document 1).
- this type of power conversion device when applied to power supply / charging of a drive motor for an electric vehicle, it must be housed in a housing in order to protect the components, and the high-voltage terminal and the housing are insulated in the housing. In order to ensure the property, a predetermined space must be provided.
- the above-described conventional technology is configured such that the smoothing capacitor and the IGBT are mounted on the substrate and the power supply bus bar is disposed on the outermost side facing the substrate, so that a predetermined space is provided between the power supply bus bar and the housing. There is a problem that the housing becomes larger.
- the problem to be solved by the present invention is to provide a power conversion device capable of suppressing an increase in size of a housing.
- components of a power conversion circuit including a switching element, a smoothing capacitor, and a circuit board on which a driving circuit component for driving the switching element is mounted are accommodated in a housing and input via a high-voltage terminal.
- the above-mentioned problem is solved by arranging the high-voltage terminal and the circuit board in the same plane region.
- the high-voltage terminal and the circuit board are arranged in the same plane area, the required insulation space of the high-voltage terminal and the insulation space of the circuit board overlap in the first direction. As a result, an increase in the size of the housing in the first direction can be suppressed.
- FIG. 1 is an electric circuit diagram showing an embodiment in which an inverter 30 in which the power converter of this embodiment is embodied as a DC / three-phase AC converter is applied to the motor control system 1.
- the motor control system 1 of the present embodiment can be applied to an AC uninterruptible power supply and the like in addition to a traveling drive device of an electric vehicle.
- the three-phase AC load 20 shown in FIG. 1 corresponds to a travel drive motor, and is constituted by a secondary battery or the like.
- the DC power source 10 corresponds to a travel drive battery.
- the motor control system 1 of this embodiment includes a DC power supply 10, a three-phase AC load 20, and an inverter 30 that converts DC power of the DC power supply 10 into three-phase AC power.
- the DC power supply 101 can be constituted by, for example, a secondary battery such as a lithium ion battery, a solar battery, a fuel cell, a PFC (Power factor correction) converter, or the like.
- the AC load 20 has a regeneration function, the AC power of the AC load 20 may be converted into DC power by the inverter 30 and the DC power supply 10 may be charged.
- the inverter 30 includes upper arm circuits 31, 33, 35, lower arm circuits 32, 34, 36, smoothing capacitors 37, 38, 39, and a controller 40.
- the inverter 30 converts the DC power of the DC power supply 10 into three-phase AC power. And this is supplied to the three-phase AC load 20.
- the upper arm circuits 31, 33, and 35 are mainly composed of circuits in which switching elements Q1, Q3, and Q5 as power devices and diodes D1, D3, and D5 are connected in parallel, respectively.
- the lower arm circuits 32, 34, and 36 are mainly configured by a circuit in which switching elements Q2, Q4, and Q6 as power devices are connected in parallel with diodes D2, D4, and D6, respectively.
- three pairs of circuits in which two switching elements Q1, Q2, Q3, Q4, Q5, and Q6 are connected in series are connected between the power supply line P and the power supply line N, so that DC
- the connection midpoints connected in parallel to the power supply 10 and connecting each pair of switching elements Q1 and Q2, Q3 and Q4, Q5 and Q6, and the three-phase input portion of the three-phase AC load 20 are electrically connected to each other. It is connected. That is, in the inverter 30 of this embodiment, the upper arm circuit 31 and the lower arm circuit 32, the upper arm circuit 33 and the lower arm circuit 34, and the upper arm circuit 35 and the lower arm circuit 36 are connected in series, respectively.
- connection intermediate point between the upper arm circuit 31 and the lower arm circuit 32 is connected to the U phase of the AC load 20
- the connection intermediate point between the upper arm circuit 33 and the lower arm circuit 34 is connected to the V phase of the AC load 20
- a connection intermediate point between the upper arm circuit 35 and the lower arm circuit 36 and the W phase of the AC load 20 are connected.
- the controller 40 alternately turns ON / OFF the upper arm circuit 31 and the lower arm circuit 32 to increase / decrease the ON time ratio and control the output from the inverter 30.
- the upper arm circuit 31 includes a switching element Q1, a diode D1, and a gate drive circuit.
- the drain electrode of the switching element Q1 is connected to the cathode terminal of the diode D1, and the source electrode of the switching element Q1 is connected to the anode terminal of the diode D1.
- the gate electrode of the switching element Q1 is connected to the controller 40 through a gate drive circuit.
- the other terminals of the upper arm circuit and the lower arm circuits 32 to 36 are also connected to the controller 40 with the same configuration.
- the switching elements Q1 to Q6 of the present embodiment are wide gap semiconductor devices (SiC devices, GaN devices, diamond devices) or Si devices, such as junction field effect transistors (JFETs), MOSFETs or insulated gate bipolars.
- a transistor IGBT
- FRD high-speed rectifying element, Fast Recovery Diode
- SBD Schottky barrier diode, Schottky Barrier Diode
- the inverter 30 of this embodiment has three smoothing capacitors 37, 38, and 39, and each of the smoothing capacitors 37 to 39 is paired between the power supply line P and the power supply line N and the lower arm circuit and the lower arm.
- the circuits 31 and 32, 33 and 34, and 35 and 36 are connected in parallel, respectively.
- three smoothing capacitors 37 to 39 are provided, one for each of the three upper arm circuits and the lower arm circuits 31 and 32, 33 and 34, and 35 and 36 that form a pair.
- one or two smoothing capacitors may be provided by increasing the capacitor capacity, or four or more smoothing capacitors may be provided by reducing the capacitor capacity. It can select suitably according to the layout of the inverter 30 mentioned later.
- FIG. 3 is a plan view (upper view) and a front view (lower view) showing the smoothing capacitor module 41 of the present embodiment
- FIG. 2B is a plan view (upper view) and a front view (lower view) of the switching module 52 of the present embodiment. It is.
- the main bodies of the smoothing capacitors 37 to 39, the main bodies of the switching elements Q1 to Q6, the main bodies of the diodes D1 to D6, and the internal wiring, which are components, are external to the package 42 and 53. Is not visible, but is shown in a perspective view using a circuit symbol for convenience in each plan view.
- the smoothing capacitor module 41 of the present embodiment incorporates three smoothing capacitors 37, 38, and 39 as shown in FIG. 2A, and has a substantially rectangular parallelepiped packaging with wiring as shown in FIG. 2A inside. Consists of the body. As shown in the figure, at the left end of the upper surface of the package 42, a P terminal portion 43 connected to the plus terminal of the DC power source 10 and an N terminal portion 44 connected to the minus terminal of the DC power source 10 are provided. Is provided so as to be exposed to the outside of the package 42. Further, on the right end portion of the upper surface of the package 42, the capacitor side for connecting the smoothing capacitors 37, 38, and 39 to the upper and lower arm circuits 31 and 32, 33 and 34, 35 and 36 which form a pair.
- High voltage connection terminal portions 45 to 50 are provided so as to be exposed to the outside of the package 42. Also, a mounting portion 51 is provided at the bottom of the package 42, and the smoothing capacitor module 41 is fixed to a housing 65 described later by inserting and tightening a bolt through the through hole.
- the switching module 52 of the present embodiment incorporates six switching elements Q1 to Q6 and six diodes D1 to D6, and has a substantially rectangular parallelepiped shape with wiring as shown in FIG. 2B inside. It consists of a packaging body. As shown in the figure, the upper and lower arm circuits 31 and 32, 33 and 34, 35 and 36, and smoothing capacitors 37, 38 and 39, which are paired, are formed at the left end of the upper surface of the package 53. Switching-side high-voltage connection terminal portions 54 to 59 for connecting are connected to the outside of the package 53.
- a U terminal portion 60 connected to the U phase of the AC load 20, a V terminal portion 61 connected to the V phase of the AC load 20, and a W phase of the AC load 20.
- a W terminal portion 62 to be connected to the outside of the package 53 so as to be exposed to the outside.
- a mounting portion 63 is provided at the bottom of the package 53, and the switching module 52 is fixed to a housing 65 to be described later by inserting and tightening a bolt through the through hole.
- capacitor-side high-voltage connection terminal portions 45 to 50 provided at the right end portion of the upper surface of the smoothing capacitor module 41, and switching-side high-voltage connection terminal portions 54 to 59 provided at the left end portion of the upper surface of the switching module 52; are connected in the configuration of the electric circuit diagram shown in FIG. 1, but in this embodiment, the capacitor-side high-voltage connection terminal portions 45 to 50 and the switching-side high-voltage connection terminal portions 54 to 59 formed at substantially opposite positions, that is, 45 and 54, 46 and 55, 47 and 56, 48 and 57, 49 and 58, and 50 and 59, the arrangement position of each high-voltage connection terminal portion is considered.
- Reference numeral 64 indicated by a two-dot chain line in FIG. 2B is a water-cooled heat sink for releasing heat generated in the switching module 52, and a detailed configuration will be described later.
- FIG. 3 is a plan view showing the inside of the casing 65 of the inverter 30 of the present embodiment
- FIG. 4 is a front view of the same.
- the smoothing capacitor module 41 and the switching module 52 described above are accommodated in a casing 65, and circuit boards 66 and 67 such as a printed circuit board PCB and a printed wiring board PWB constituting the controller 40 are also provided in the casing.
- the housing 65 of the present embodiment has a substantially rectangular parallelepiped shape, and includes a housing body 65 a that forms the lower portion of the housing 65, and a lid body 65 b that forms the upper portion of the housing 65.
- the flange portion of the casing body 65a and the flange portion of the lid body 65b are combined and tightened with bolts, nuts, or the like to close the inside.
- the casing 65 is made of an insulating material.
- the smoothing capacitor module 41 and the switching module 52 described above are fixed to the bottom of the housing body 65 a.
- the fixing structure to these housing main bodies 65a is not particularly limited, in the present embodiment, the smoothing capacitor module 41 is attached to each boss portion 68 constituting an attachment portion provided at an appropriate position on the bottom surface of the housing main body 65a.
- the attachment part 51 and the attachment part 63 of the switching module are aligned and fixed by bolting.
- the height of the boss portion 68 makes the space between the bottom surface of the package 42 of the smoothing capacitor module 41 and the bottom surface of the housing body 65a, and between the bottom surface of the package 53 of the switching module 52 and the bottom surface of the housing body 65a.
- a space is formed in each.
- the smoothing capacitor module 41 and the switching module 52 may be fixed to a rigid substrate, and this substrate may be fixed to the housing body 65a.
- the bus terminal 69 for connecting to the connector (not shown) of the DC power source 10 shown in FIG. 1 is connected to each of the P terminal portion 43 and the N terminal portion 44 of the smoothing capacitor module 41.
- 70 are fixed by bolts or the like.
- six bus bars 71 for electrically connecting the capacitor-side high-voltage connection terminal portions 45 to 50 and the switching-side high-voltage connection terminal portions 54 to 59 of the switching module 52 within the housing 65 are provided.
- 76 are fixed by bolts or the like.
- bus bars 77 to 79 for connecting each of the U terminal portion 60, the V terminal portion 61, and the W terminal portion 62 of the switching module 52 to a connector (not shown) of the AC load 20 are fixed with bolts or the like.
- Bus bars 69 and 70 for connecting to the DC power source 10 and bus bars 77, 78 and 79 for connecting to the AC load 20 are provided so as to be exposed from the inside of the housing 65 to the outside. .
- Circuit boards 66 and 67 on which various drive circuit components for driving the switching elements Q1 to Q6 are mounted are also accommodated in the housing 65. These circuit boards 66 and 67 constitute the controller 40 shown in FIG. As shown in FIGS. 3 and 4, the circuit boards 66 and 67 of the present embodiment are divided into two parts with sizes to be placed on the upper surfaces of the smoothing capacitor module 41 and the switching module 52, and the boss part 80 is interposed therebetween. The upper surfaces of the smoothing capacitor module 41 and the switching module 52 are fixed by bolts or the like.
- circuit terminals 81 and 82 for connecting the wiring circuits of the circuit boards 66 and 67 are provided on the upper surfaces of the circuit boards 66 and 67, and these circuit terminals 81 and 82 are electrically connected by a wire harness 83. ing.
- each of the bus bars 77 to 79 connected to each of the U terminal portion 60, the V terminal portion 61, and the W terminal portion 62 is equipped with a current sensor 90 that detects a current value flowing through them. And connected to the circuit boards 66 and 67 by a wire harness (not shown).
- An input / output terminal 84 for transmitting / receiving command signals and detection signals to / from the controller 40 is provided on the upper surface of one circuit board 66, and a connector provided on the upper surface of the lid 65 b of the housing 65. 85 and a wire harness 86 are electrically connected.
- the inverter 30 of this embodiment is controlled.
- the connector 85 is provided on the upper surface of the lid body 65b.
- the connector 85 may be provided on the side surface of the lid body 65b or the side surface of the housing body 65a.
- FIG. 5 is an exploded cross-sectional view showing the water-cooled heat sink 64 of the present embodiment.
- the heat sink 64 of the present embodiment includes a jacket lid 64b in which a heat radiating portion 64a is formed on the lower surface of a flat plate member, and an open top surface and a bottom surface.
- a cooling jacket 64c having Although the detailed illustration is omitted in the cross-sectional view of FIG.
- the heat radiating portion 64 a formed on the jacket lid 64 b is composed of fins meandering along the lower surface of the jacket lid 64 b, from the state shown in FIG. 5.
- the cooling water flow path 64d is formed in cooperation with the side surface and the bottom surface of the cooling jacket 64c.
- One end of the cooling water channel 64d of the cooling jacket 64c is provided with an opening for sucking the cooling water flowing through the cooling water channel, and the other end of the cooling water channel 64d returns the sucked cooling water to the cooling water channel. An opening is provided.
- the cooling water is sucked from the opening at one end of the cooling water flow path by the circulation pump 88 and is circulated to the other opening.
- the heat sink 64 of this embodiment is a water cooling type, the switching module 52 can be sufficiently cooled even if the vehicle stops and the air cooling capability is low.
- the water-cooled heat sink 64 is housed in the housing 65 of the inverter 30 as shown in FIG. 4, when cooling water flowing through the cooling water flow path 64 d leaks into the housing 65, May have adverse effects.
- a sealing portion 89 including a gasket such as FIPG (Formed place gasket) or a rubber gasket is provided on the joint surface between the jacket lid 64 b and the cooling jacket 64 c. .
- the seal portion 89 for stopping the cooling water that leaks into the housing 65 is disposed on the lower side of the housing 65.
- the inverter 30 of the present embodiment is connected to the bus bar 69 connected to the P terminal portion 43 of the smoothing capacitor module 41 and the DC power supply 10 and to the N terminal portion 44 of the smoothing capacitor module 41 and the DC power supply 10.
- the bus bar 70 is disposed on the upper side of the housing 65.
- the bus bar 77 connected to the U terminal 60 of the switching module 52 and the U phase of the AC load 20, the bus bar 78 connected to the V terminal 61 of the switching module 52 and the V phase of the AC load 20, and the switching module.
- a bus bar 79 connected to the W terminal portion 52 of 52 and the W phase of the AC load 20 is also disposed on the upper portion of the housing 65.
- the inverter 30 of the present embodiment also includes bus bars 71 to 76 that connect the capacitor side high voltage connection terminal portions 45 to 50 of the smoothing capacitor module 41 and the switching side high voltage connection terminal portions 54 to 59 of the switching module 52.
- 65 is disposed on the upper side. Further, the circuit boards 66 and 67 divided into two are also arranged on the upper side of the housing 65.
- the bus bars 69 to 79 for inputting / outputting high-voltage power and the circuit boards 66, 67 for inputting / outputting low-voltage power are arranged in the same plane region E indicated by a dotted line in FIG. ing.
- the same plane area E in the present embodiment means an area including an XY plane having a certain size in the Z-axis direction that is the height direction of the housing 65.
- FIG. 6 shows an enlarged front view of the upper part of the housing 65 of FIG.
- the height of the insulating space is also set high (H1 ⁇ H2).
- the insulating spaces 66S and 67S of the circuit boards 66 and 67 and the insulating spaces 69S to 79S of the bus bars 69 to 79 in the XY plane direction of the housing 65 are shown in FIG.
- Such an insulating space is a so-called dead space that cannot be arranged unless it is a part covered with an insulating member. Therefore, if the bus bars 69 to 79 and the circuit boards 66 and 67 are arranged so as to be stacked in the height direction, the housing The height dimension of 65 becomes extremely large.
- the smoothing capacitor module 41 and the switching module 52 are arranged side by side in the XY plane direction of the housing 65, and further, the bus bar 69 is provided on the upper surface of each of the smoothing capacitor module 41 and the switching module 52.
- the circuit boards 66 and 67 and the circuit boards 66 and 67 are arranged so as to be in the same plane region E, the upper surfaces of the smoothing capacitor module 41 and the switching module 52 are almost the same height.
- the height dimension H from these upper surfaces to the lid 65b of the housing 65 is the same height as the height H2 of the insulating spaces 69S to 79S of the bus bars 69 to 79.
- the insulating spaces 66S and 67S of the circuit boards 66 and 67 are disposed so as to be included in the insulating spaces 69S to 79S of the bus bars 69 to 79 in the height direction.
- the height dimension of the boss portion 68 may be set appropriately. However, as shown in FIG. If the upper surfaces of the smoothing capacitor module 41 and the switching module 52 cannot be flush with each other, the same conductivity is applied to the capacitor side high voltage connection terminal portions 45 to 50 or the switching side high voltage connection terminal portions 54 to 59 as shown in FIG.
- the boss 91 may be provided or the bus bars 71 to 76 may be bent although not shown. In this case, as shown in FIG.
- the insulating spaces 66S and 67S of the circuit boards 66 and 67 and the insulating spaces 69S to 79S of the bus bars 69 to 79 are arranged so as to overlap each other in the height direction of the housing 65. Is desirable.
- the height dimension H from the upper surfaces of the smoothing capacitor module 41 and the switching module 52 to the lid 65b of the housing 65 is equal to the height H1 of the insulating spaces 66S, 67S of the circuit boards 66, 67 and the bus bars 69- It becomes smaller than the value obtained by adding the height H2 of the 79 insulating spaces 69S to 79S (H ⁇ H1 + H2).
- the inverter 30 of this embodiment is arranged with the lid 65b of the housing 65 on the vertical upper side as shown in FIGS. 6 and 7, the insulating spaces 66S and 67S of the circuit boards 66 and 67 and the bus bars 69 to 79 are arranged. It is desirable to set the highest position among the insulating spaces 69S to 79S on the inner surface of the lid 65b of the housing 65. Further, in the inverter 30 of the present embodiment, the top and bottom shown in FIGS. 6 and 7 can be reversed, that is, the lid 65b can be arranged vertically downward. In this case, the circuit boards 66 and 67 are insulated. It is desirable to set the lowest position among the spaces 66S and 67S and the insulating spaces 69S to 79S of the bus bars 69 to 79 on the inner surface of the lid 65b of the housing 65.
- the wire harness 83 covered with the insulating material is arranged in the range of the insulating spaces 66S and 67S of the circuit boards 66 and 67 and the insulating spaces 71S to 76S of the bus bars 71 to 76.
- the current sensors 90 mounted on the bus bars 77 to 79 are also disposed within the insulating spaces 77S to 79S of the bus bars 77 to 79.
- FIG. 8 is a plan view showing the inside of the housing 65 when the inverter 30 of this embodiment is assembled.
- the circuit board 66 is mounted on the upper surface of the smoothing capacitor module 41.
- Reference numeral 92 denotes a cross section of the hand of the assembly robot.
- a work space in other words, a space where the hand 92 does not interfere is required, and the circuit board 66 cannot be assembled if other components are mounted in this space.
- the insulating spaces 69S to 75S of the bus bars 69 to 75S are set on the left and right of the assembly position of the circuit board 66, so there are no other components. Therefore, the assembly robot hand 92 can move the circuit board 66 to the assembly position without interfering with other components.
- the inverter 30 of this embodiment has the following effects.
- the bus bars 69 to 79 and the circuit boards 66 and 67 are arranged in the same plane area E, the required bus bar insulation spaces 69S to 79S and circuit board insulation spaces 66S and 67S are required. And overlap in the height direction. As a result, an increase in the size of the housing 65 in the height direction can be suppressed. Further, as a result of arranging the bus bars 69 to 79 and the circuit boards 66 and 67 in the same plane region E, the length of the bus bars 69 to 79 to which the high voltage power is supplied can be shortened, and the impedance of the bus bar is reduced. be able to.
- the smoothing capacitor module 41 and the switching module 52 from the top surface to the lid 65b of the housing 65 are the height H1 of the insulating spaces 66S and 67S of the circuit boards 66 and 67 and the insulating spaces 69S to 69B of the bus bars 69 to 79. It becomes smaller than the value obtained by adding the height H2 of 79S (H ⁇ H1 + H2). As a result, an increase in the size of the housing 65 in the height direction can be suppressed.
- the insulating spaces 66S and 67S of the circuit boards 66 and 67 are arranged so as to be included in the insulating spaces 69S to 79S of the bus bars 69 to 79 in the height direction.
- the height H from the upper surfaces of the smoothing capacitor module 41 and the switching module 52 to the lid 65b of the housing 65 is the same as the height H2 of the insulating spaces 69S to 79S of the bus bars 69 to 79.
- the inverter 30 of the present embodiment when the lid body 65b of the housing 65 is arranged vertically upward, the insulating spaces 66S and 67S of the circuit boards 66 and 67 and the bus bars 69 to 79 are arranged.
- the insulating spaces 66S and 67S of the circuit boards 66 and 67 Since the lowest position of the insulating spaces 69S to 79S of the bus bars 69 to 79 is set on the inner surface of the lid 65b of the casing 65, this also can suppress the increase in size of the casing 65 in the height direction. .
- the wire harness 83 covered with an insulating material is arranged almost in the insulating spaces 69S to 79S of the bus bars 69 to 79 and the insulating spaces 66S and 67S of the circuit boards 66 and 67.
- the current sensor 90 is disposed, so that the enlargement of the housing 65 can also be suppressed.
- the smoothing capacitor module 41 and the switching module 52 are arranged side by side in the XY plane direction of the housing 65, and further, the bus bars 69 to 79 and the circuit boards 66 and 67 are arranged so as to be in the same plane area E. From the viewpoint of assembling workability, the assembly robot hand 92 is less likely to interfere with other component parts, thereby increasing the automation rate. Can be increased.
- the bus bars 69 and 70 correspond to the first high voltage terminal according to the present invention
- the bus bars 77, 78 and 79 correspond to the second high voltage terminal according to the present invention
- the bus bars 71 to 76 correspond to the third high voltage terminal according to the present invention.
- the bus bars 69 to 79 correspond to the high-voltage terminals according to the present invention
- the height direction and the Z-axis direction correspond to the first direction according to the present invention
- the XY plane corresponds to the second direction according to the present invention. It corresponds to a plane.
- Heat sink 64a ... Heat radiation part 64b ... Jack cover 64c ... Cooling jacket 64d ... Cooling water flow path 65 ... Case 65a ... Case body 65b ... Cover body 66, 67 ... Circuit board 68 ... Boss Portions 69 to 79: Bus bar 80 ... Boss portions 81, 82 ... Circuit terminals 83 ... Wire harness 84 ... In / out Terminal 85 ... connector 86 ... hand E ... flush area of the wire harness 87 ... opening 88 ... circulation pump 89 ... seal portion 90 ... Current sensor 91 ... conductive boss portion 92 ... assembling robot
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- Inverter Devices (AREA)
Abstract
Description
本実施形態のインバータ30では、バスバ69~79と回路基板66,67が同一平面領域Eに配置されているので、必要とされるバスバの絶縁空間69S~79Sと回路基板の絶縁空間66S,67Sとが高さ方向において重複する。その結果、高さ方向における筐体65の大型化を抑制することができる。また、バスバ69~79と回路基板66,67とを同一平面領域Eに配置した結果、高圧電力が供給されるバスバ69~79の長さを短縮することができ、当該バスバのインピーダンスを低減することができる。
10…直流電源
20…交流負荷
30…インバータ(電力変換装置)
31,33,35…上アーム回路
32,34,36…下アーム回路
Q1~Q6…スイッチング素子
D1~D6…ダイオード
37,38,39…平滑コンデンサ
40…コントローラ
41…平滑コンデンサモジュール
42…パッケージ
43…P端子部
44…N端子部
45~50…コンデンサ側高圧接続端子部
51…取付部
52…スイッチングモジュール
53…パッケージ
54~59…スイッチング側高圧接続端子部
60…U端子部
61…V端子部
62…W端子部
63…取付部
64…ヒートシンク
64a…放熱部
64b…ジャケット蓋
64c…冷却ジャケット
64d…冷却水流路
65…筐体
65a…筐体本体
65b…蓋体
66,67…回路基板
68…ボス部
69~79…バスバ
80…ボス部
81,82…回路端子
83…ワイヤーハーネス
84…入出力端子
85…コネクタ
86…ワイヤーハーネス
87…開口部
88…循環ポンプ
89…シール部
90…電流センサ
91…導電性ボス部
92…組み付けロボットのハンド
E…同一平面領域
Claims (7)
- スイッチング素子と、平滑コンデンサと、前記スイッチング素子を駆動する駆動回路部品が実装された回路基板とを含む電力変換回路の構成部品が筐体に収容され、高圧端子を介して、入力された電力を変換して出力する電力変換装置において、
前記高圧端子と前記回路基板は、同一平面領域に配置されている電力変換装置。 - 前記高圧端子は、変換すべき電力を入力する第1高圧端子と、変換された電力を出力する第2高圧端子と、前記平滑コンデンサと前記スイッチング素子とを接続する第3高圧端子と、の少なくとも1つの高圧端子を含む請求項1に記載の電力変換装置。
- 前記高圧端子と前記回路基板は、
それぞれ絶縁空間を介して前記筐体内に収容され、
前記高圧端子の絶縁空間のうち第1方向の範囲と、前記回路基板の絶縁空間のうち前記第1方向の範囲とが互いに重なるように、前記同一平面領域に配置されている請求項1又は2に記載の電力変換装置。 - 前記高圧端子と前記回路基板は、前記高圧端子又は前記回路基板の一方の絶縁空間のうち前記第1方向の範囲に、前記高圧端子又は前記回路基板の他方の絶縁空間のうち前記第1方向の範囲が含まれるように、前記同一平面領域に配置されている請求項3に記載の電力変換装置。
- 前記高圧端子又は前記回路基板の絶縁空間のうち前記第1方向の範囲の最高位置は、前記筐体の上面と一致するか又は、前記高圧端子又は前記回路基板の絶縁空間のうち前記第1方向の範囲の最低位置は、前記筐体の下面と一致する請求項3又は4に記載の電力変換装置。
- 前記高圧端子と前記回路基板は、前記高圧端子又は前記回路基板の絶縁空間のうち前記第1方向に直交する第2方向の平面の範囲と、前記電力変換回路の構成部品を筐体に収納組み付けする際の前記第2方向の作業範囲とが重なるように、前記同一平面領域に配置されている請求項3~5のいずれか一項に記載の電力変換装置。
- 前記高圧端子又は前記回路基板の絶縁空間に、前記電力変換回路の他の構成部品が配置されている請求項1~6のいずれか一項に記載の電力変換装置。
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JP2015549011A JP6137334B2 (ja) | 2013-11-20 | 2014-08-07 | 電力変換装置 |
EP14863603.8A EP3073627A4 (en) | 2013-11-20 | 2014-08-07 | ENERGY CONVERTING APPARATUS |
CN201480062774.5A CN105794096B (zh) | 2013-11-20 | 2014-08-07 | 电力变换装置 |
US15/037,585 US9859810B2 (en) | 2013-11-20 | 2014-08-07 | Power converter |
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Cited By (4)
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CN109891621A (zh) * | 2016-10-31 | 2019-06-14 | 工机控股株式会社 | 电池组以及使用电池组的电动机器、电动机器系统 |
WO2020201799A1 (ja) * | 2019-03-29 | 2020-10-08 | 日産自動車株式会社 | 電力変換装置 |
JPWO2020148880A1 (ja) * | 2019-01-18 | 2021-09-27 | 東芝キヤリア株式会社 | 平滑回路、および平滑回路基板 |
DE112021000451T5 (de) | 2020-03-30 | 2022-10-27 | Hitachi Astemo, Ltd. | Leistungswandlungsvorrichtung |
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DE102014004799B4 (de) * | 2014-04-03 | 2022-05-19 | Sew-Eurodrive Gmbh & Co Kg | Elektrogerät und Verfahren zur Herstellung eines Elektrogerätes |
EP2961060B1 (fr) * | 2014-06-23 | 2021-06-09 | GE Energy Power Conversion Technology Ltd | Système d'alimentation électrique d'une charge et procédé d'alimentation correspondant |
CN108141140B (zh) * | 2015-09-30 | 2020-10-30 | 东芝三菱电机产业系统株式会社 | 不间断电源装置 |
JP6769707B2 (ja) | 2015-12-03 | 2020-10-14 | ローム株式会社 | 半導体モジュール |
RU2727730C1 (ru) * | 2017-06-15 | 2020-07-23 | Ниссан Мотор Ко., Лтд. | Устройство преобразования электроэнергии |
JP2019033624A (ja) * | 2017-08-09 | 2019-02-28 | 株式会社デンソー | 電力変換装置 |
JP7024592B2 (ja) * | 2018-05-11 | 2022-02-24 | 株式会社デンソー | 電力変換装置 |
US11332087B2 (en) * | 2018-06-04 | 2022-05-17 | Westinghouse Air Brake Technologies Corporation | Phase module assembly of a multi-phase inverter |
CN110596925B (zh) * | 2018-06-12 | 2022-02-22 | 夏普株式会社 | 电路基板 |
JP2022086808A (ja) * | 2020-11-30 | 2022-06-09 | 日本電産エレシス株式会社 | コンデンサモジュール、インバータモジュールおよびモータユニット |
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JP6997345B2 (ja) | 2019-01-18 | 2022-01-17 | 東芝キヤリア株式会社 | 平滑回路、および平滑回路基板 |
WO2020201799A1 (ja) * | 2019-03-29 | 2020-10-08 | 日産自動車株式会社 | 電力変換装置 |
DE112021000451T5 (de) | 2020-03-30 | 2022-10-27 | Hitachi Astemo, Ltd. | Leistungswandlungsvorrichtung |
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US20160294301A1 (en) | 2016-10-06 |
JPWO2015075976A1 (ja) | 2017-03-16 |
EP3073627A4 (en) | 2016-12-21 |
US9859810B2 (en) | 2018-01-02 |
CN105794096B (zh) | 2018-08-28 |
EP3073627A1 (en) | 2016-09-28 |
JP6137334B2 (ja) | 2017-05-31 |
CN105794096A (zh) | 2016-07-20 |
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