WO2013080698A1 - 電力変換装置 - Google Patents
電力変換装置 Download PDFInfo
- Publication number
- WO2013080698A1 WO2013080698A1 PCT/JP2012/077104 JP2012077104W WO2013080698A1 WO 2013080698 A1 WO2013080698 A1 WO 2013080698A1 JP 2012077104 W JP2012077104 W JP 2012077104W WO 2013080698 A1 WO2013080698 A1 WO 2013080698A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- power supply
- power
- metal housing
- bus
- feed
- Prior art date
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
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
-
- 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
Definitions
- the present invention relates to a power converter for driving a motor or the like for a vehicle, and more particularly to a power converter for reducing switching noise.
- a so-called automotive power electronics system for obtaining mechanical energy from electric energy comprises mainly a battery for supplying DC power, a power converter such as an inverter for converting DC to AC, and power conversion. It consists of a motor that obtains a rotational force from the electrical output of the device.
- the motor obtains a rotational force by an electromagnetic action by the AC power output from the power conversion device.
- the power conversion device is connected to the battery by a shield line, and a switch group (power module) consisting of modularized power semiconductor elements and a capacitor are contained in the housing thereof.
- a plate-like conductor (bus bar) is connected to connect the power module and the shield wire from the battery, and the capacitor is smoothed to absorb fluctuations in the input voltage of the power converter.
- a capacitor is connected.
- the smoothing capacitor is connected to a feed bus connecting the battery and the power conversion device, and partially suppresses voltage fluctuation due to switching.
- a control circuit that controls the rotation of the motor by opening and closing a switch group made of a power semiconductor element exists inside the casing of the power conversion device.
- the power converter of such a configuration generates AC power for converting DC power of the battery and obtaining rotational force of the motor by opening and closing the switch group in response to a signal from the control circuit.
- switching noise occurs when opening and closing a switch inside.
- This switching noise affects the listening of the on-vehicle radio mounted on the vehicle, for example, when the vehicle is mounted on a power conversion device, making it difficult to listen to the radio or generating offensive noise, In some cases, it is also feared that the operation of other digital devices mounted in the vehicle is adversely affected.
- Patent Document 1 is disclosed as a technique for reducing a surge voltage due to switching.
- a semiconductor device used for a power conversion device an electrode connected to the positive electrode side of the power supply and an electrode connected to the negative electrode side of the power supply are arranged in parallel, and the current flowing in each electrode was configured to be in the opposite direction.
- the magnetic flux generated by the current is canceled to reduce the inductance, the surge voltage due to the switching is reduced.
- the frequency of noise propagating from such an electrode to the metal housing is determined by the electrical characteristics including the size of the electrode. For example, when the dimension of each side in the case of a plate-like electrode is a, b, and the dielectric constant between the plates is ⁇ r, it can be expressed as the following equation (1).
- this invention is proposed in view of the situation mentioned above, and it aims at providing a power converter which can reduce that a switching noise propagates to a metal case, and can reduce radiation noise. I assume.
- the present invention accommodates a power module for converting DC power into AC power, first and second feed buses connecting the input terminal and the power module, and first and second feed buses and the power module. And a metal case. Then, the above-described problem is solved by substantially matching the capacitive coupling between the first power supply bus and the metal housing and the capacitive coupling between the second power supply bus and the metal housing.
- FIG. 1 is a perspective view showing the structure of a power conversion device according to a first embodiment of the present invention.
- FIG. 2 is a plan view showing the structure of the power conversion device according to the first embodiment to which the present invention is applied.
- FIG. 3 is a circuit diagram showing a circuit configuration of the power conversion device according to the first embodiment to which the present invention is applied.
- FIG. 4 is a view showing a cross-sectional structure of the power conversion device according to the first embodiment to which the present invention is applied.
- FIG. 5 is a diagram showing noise transmitted to the metal casing among switching noises generated in the first feed bus and the second feed bus in the power conversion device according to the first embodiment to which the present invention is applied.
- FIG. 1 is a perspective view showing the structure of a power conversion device according to a first embodiment of the present invention.
- FIG. 2 is a plan view showing the structure of the power conversion device according to the first embodiment to which the present invention is applied.
- FIG. 3 is a circuit diagram showing a circuit configuration of
- FIG. 6 is a view showing the relationship between the noise intensity and the balance of the electrical characteristics in the power conversion device according to the first embodiment to which the present invention is applied.
- FIG. 7 is a view showing a cross-sectional structure of the power conversion device according to the first embodiment to which the present invention is applied.
- FIG. 8 is a view showing a cross-sectional structure of a power conversion device according to a second embodiment to which the present invention is applied.
- FIG. 9 is a perspective view showing the structure of a power conversion device according to a third embodiment of the present invention.
- FIG. 10 is a view showing a cross-sectional structure of a power conversion device according to a third embodiment to which the present invention is applied.
- FIG. 11 is a perspective view showing the structure of the power conversion device according to the fourth embodiment to which the present invention is applied.
- FIG. 12 is a plan view showing a structure of a power conversion device according to a fourth embodiment to which the present invention is applied.
- FIG. 13 is a view showing a cross-sectional structure of a power conversion device according to a fourth embodiment to which the present invention is applied.
- FIG. 14 is a view showing a cross-sectional structure of a power conversion device according to a fourth embodiment to which the present invention is applied.
- FIG. 15 is a view showing a cross-sectional structure of a power conversion device according to a fifth embodiment to which the present invention is applied.
- FIG. 16 is a perspective view for explaining the structure of the power conversion device according to the sixth embodiment to which the present invention is applied.
- FIG. 17 is a perspective view for explaining the structure of the power conversion device according to the seventh embodiment to which the present invention is applied.
- FIG. 18 is a view and a three-dimensional perspective view showing a cross-sectional structure of a power conversion device according to an eighth embodiment of the present invention.
- FIG. 19 is a view showing a cross-sectional structure of a power conversion device according to an eighth embodiment to which the present invention is applied.
- FIG. 1 is a three-dimensional perspective view showing the structure of the power conversion device according to the present embodiment
- FIG. 2 is a plan view
- FIG. 3 is a circuit diagram.
- the power conversion device 1 includes a power module 4 that converts direct current power supplied from a direct current power supply 2 into alternating current power to drive a motor 3;
- a first power supply bus 5 connecting the positive electrode side to the power module 4, a second power supply bus 6 connecting the negative electrode side of the DC power supply 2 to the power module 4, and a metal housing accommodating the power conversion device 1 7, smoothing capacitor 8 for smoothing DC power supplied from DC power supply 2, bus bar 9 connected to UVW phase of power module 4 and motor 3, DC power supply 2 and first and second feed buses, respectively.
- a shield wire 10 connecting between 5 and 6 and a shield wire 11 connecting between the bus bar 9 and the motor 3 are provided.
- first power supply bus 5 is connected to the shield wire 10 via the first input terminal 12 and is connected to the positive electrode of the DC power supply 2.
- second power supply bus 6 is connected to the shield line 10 via the second input terminal 13 and connected to the negative electrode of the DC power supply 2.
- the bus bar 9 is connected to the shield wire 11 via the output terminal 14.
- the power conversion device 1 is connected between the DC power supply 2 and the motor 3, converts DC power supplied from the DC power supply 2 into AC power, and supplies the AC power to the motor 3.
- an electric vehicle is described as an example in the present embodiment, the present invention is also applicable to a hybrid vehicle, and is also applicable to a power conversion device mounted on a device other than a vehicle.
- the DC power supply 2 is, for example, a battery mounted on a vehicle, and is constituted of a plurality of batteries, and is connected to the first and second power supply buses 5 and 6 by a shield wire 10.
- the motor 3 is, for example, a three-phase alternating current power motor or the like mounted on an electric vehicle, and the UVW phases are connected to the bus bars 9 by shield wires 11, respectively.
- the power module 4 is a power conversion means for converting direct current power to alternating current power, and as shown in FIG. 3, performs power conversion from a plurality of switching elements for performing power conversion from direct current to three phase alternating current and from three phase alternating current to direct current. It is composed of a plurality of free wheeling diodes.
- the first feed bus bar 5 is a feed means for connecting the first input terminal 12 and the power module 4 and is formed of a plate-like (flat plate) conductive member, and outputs the power output from the positive electrode side of the DC power supply 2 It is a power supply line for supplying power to the power module 4. In particular, it corresponds to the P-side power supply line in the inverter circuit constituting the power conversion device 1.
- the second feed bus bar 6 is a feed means for connecting the second input terminal 13 and the power module 4 and is formed of a plate-like (flat plate) conductive member having the same structure as the first feed bus bar 5 It is a power supply line which supplies the power output from the negative electrode side of 2 to the power module 4. In particular, it corresponds to the N-side power supply line in the inverter circuit constituting the power conversion device 1.
- the metal housing 7 is a metal storage container (storage means) for storing the entire power conversion device 1, in particular, the first and second power supply buses 5, 6 and the power module 4, and is shown in FIGS. Although not shown, in addition to the components, the control circuit and the drive circuit are accommodated inside.
- the smoothing capacitor 8 is a capacitor for suppressing and smoothing the voltage fluctuation of the DC power supplied to the power module 4.
- the bus bars 9 are three plate-shaped conductors, and are connected to the UVW phase of the motor 3 via the shield wires 11 respectively.
- the shield wire 10 is an electric wire formed by coating a metal wire with a resin, and is composed of a pair of shield wires, and one shield wire is disposed between the positive electrode terminal of the DC power supply 2 and the first feeder bus 5 The other shield wire is connected between the negative terminal of the DC power supply 2 and the second feed bus 6.
- Shield wire 11 is formed of three shield wires, and connects between bus bar 9 and motor 3 corresponding to the U phase, V phase, and W phase of motor 3, respectively.
- the first power supply bus 5 and the second power supply bus 6 are arranged such that the distances to the metal housing 7 are the same or substantially the same.
- the first power supply bus Capacitive coupling C1 between 5 and metal housing 7 can be matched or nearly matched with capacitive coupling C2 between second feed bus 6 and metal housing 7.
- the first feed bus bar 5 and the second feed bus bar 6 are disposed opposite to each other in a plane having a large area, and are opposed to the metal casing 7 in a plane having a small area.
- inductance component L when the respective feed buses 5, 6 are plate-like conductors and the mutual inductance component M (hereinafter referred to as inductive coupling) of the opposing conductors can be expressed by the following equation (3).
- the electrical characteristics between the first power supply bus 5 and the metal housing 7 and the electrical characteristics between the second power supply bus 6 and the metal housing 7 are given by the following equations (4), (4) Can be represented by ').
- a and b represent a feed bus and a metal case.
- FIG. 5 is a view showing the noise propagated to the metal casing 7 among the switching noise generated in the first feed bus 5 and the second feed bus 6 by the switching in the power module 4.
- the solid line is a noise waveform in the case where the electrical characteristics between the first power supply bus 5 and the metal housing 7 are equal to the electrical characteristics between the second power supply bus 6 and the metal housing 7
- the dotted line indicates the noise waveform in the case where the electrical characteristics between the first power supply bus 5 and the metal housing 7 are not equal to the electrical characteristics between the second power supply bus 6 and the metal housing 7. is there.
- FIG. 6 shows the relationship between the noise intensity and the balance of electrical characteristics CL BAL when the waveforms of FIG. 5 are integrated by squaring.
- Balance of electrical characteristics CL BAL is expressed by equation (5).
- the noise intensity can be reduced by setting the balance CL BAL of at least the electrical characteristics to 2 or less. That is, the noise strength is low when the electrical characteristics between the first power supply bus 5 and the metal housing 7 and the electrical characteristics between the second power supply bus 6 and the metal housing 7 are equal. The noise intensity is lowered when both of the capacitive coupling difference (C 1 -C 2) and the inductive coupling difference (L 1 -L 2) become smaller. That is, the switching surge can be reduced to reduce the propagation of noise to the metal housing 7.
- the noise intensity can be reduced even if any of
- the entire first feed bus 5 and the second feed bus 6 may be molded with a resin 17. Thereby, the first power supply bus 5 and the second power supply bus 6 can be easily fixed.
- the capacitive coupling C1 between the first power supply bus 5 and the metal housing 7, the second power supply bus 6, and the metal housing 7 Since the capacitive coupling C2 between them is substantially matched, it is possible to reduce the propagation of the switching noise to the metal casing 7 and reduce the radiation noise.
- the relationship between the distance between the first power supply bus 5 and the metal housing 7 and the distance between the second power supply bus 6 and the metal housing 7 Since the capacitive coupling C1 between the first power supply bus 5 and the metal housing 7 and the capacitive coupling C2 between the second power supply bus 6 and the metal housing 7 are made to substantially coincide by adjusting The propagation of the switching noise to the metal housing 7 can be reduced to reduce the radiation noise.
- the first feed bus 5 and the second feed bus 6 are respectively formed of plate-like conductive members, and the first feed bus 5 and the second feed bus are formed. 6 are arranged opposite to each other in a plane having a large area, the inductive coupling between the first feed bus 5 and the second feed bus 6 is reduced, and the first feed bus 5 and the second feed bus are reduced. Switching noise generated in the bus 6 can be reduced.
- the first power supply bus 5 and the second power supply bus 6 are arranged so as to face the metal housing 7 in a plane having a small area. It is possible to reduce the propagation of the switching noise generated in the first power supply bus 5 and the second power supply bus 6 to the metal housing 7 because the capacitive coupling between 7 and 7 is reduced.
- the first feed bus 5 and the second feed bus 6 are molded with resin, the first feed bus 5 and the second feed bus 6 can be used. It can be easily fixed.
- the quotient of the capacitive coupling obtained by dividing the difference between the capacitive coupling C1 and the capacitive coupling C2 by the sum of the capacitive coupling C1 and the capacitive coupling C2 is 2 or less.
- the quotient of the inductive coupling obtained by dividing the difference between the inductive coupling L1 and the inductive coupling L2 by the sum of the inductive coupling L1 and the inductive coupling L2 is 2 or less.
- the product of the quotient of capacitive coupling and the quotient of inductive coupling is made to be 2 or less, so the first feed bus 5 and the second feed bus 6 may be used. It is possible to reduce the propagation of the generated switching noise to the metal housing 7.
- FIG. 8 is a view showing the cross-sectional structure of the portion shown by A in FIG. 1 described above.
- the dielectric constant between the first feed bus bar 5 and the metal housing 7 and the distance between the second feed bus bar 6 and the metal housing 7 Capacitive coupling C1 between the first feed bus 5 and the metal housing 7 and capacitive coupling C2 between the second feed bus 6 and the metal housing 7 by adjusting the relationship with the dielectric constant. It is characterized in that it matches or almost matches.
- the dielectric 21 or the magnetic body 22 is disposed between the first power supply bus 5 and the metal housing 7 and between the second power supply bus 6 and the metal housing 7.
- the capacitive coupling C1 between the feed bus 5 and the metal housing 7 and the capacitive coupling C2 between the second feed bus 6 and the metal housing 7 are made to match or substantially match.
- FIG. 8 the case where the distance between the second power supply bus 6 and the metal housing 7 is shorter than the distance between the first power supply bus 5 and the metal housing 7 is shown as an example.
- the dielectric 21 is inserted between the first power supply bus 5 and the metal housing 7
- the magnetic body 22 is inserted between the second power supply bus 6 and the metal housing 7.
- the electrical characteristics between the feed bus 5 and the metal housing 7 and the electrical characteristics between the second feed bus 6 and the metal housing 7 are adjusted to be equal.
- the distance between the first power supply bus 5 and the metal casing 7 may be shortened. Further, either the dielectric 21 or the magnetic body 22 is inserted into either the first feed bus 5 and the metal housing 7 or the second feed bus 6 and the metal housing 7. May be
- the capacitive coupling C1 between the first power supply bus 5 and the metal housing 7, the second power supply bus 6, and the metal housing 7 Since the capacitive coupling C2 between them is substantially matched, it is possible to reduce the propagation of the switching noise to the metal casing 7 and reduce the radiation noise.
- the dielectric constant between the first power supply bus 5 and the metal housing 7 and the dielectric constant between the second power supply bus 6 and the metal housing 7 are substantially matched by adjusting the relationship Therefore, the propagation of the switching noise to the metal casing 7 can be reduced to reduce the radiation noise.
- the dielectric or the magnetism between the first power supply bus 5 and the metal housing 7 or between the second power supply bus 6 and the metal housing 7 By arranging the body, the relationship between the dielectric constant between the first power supply bus 5 and the metal housing 7 and the dielectric constant between the second power supply bus 6 and the metal housing 7 is adjusted. Thereby, capacitive coupling C1 between the first power supply bus 5 and the metal housing 7 and capacitive coupling C2 between the second power supply bus 6 and the metal housing 7 can be made to substantially coincide with each other. The propagation of the switching noise to the metal housing 7 can be reduced to reduce the radiation noise.
- FIG. 9 is a three-dimensional perspective view showing the structure of the power conversion device according to the present embodiment
- FIG. 10 is a view showing the cross-sectional structure of a portion shown by B in FIG.
- a single power module in the first embodiment is divided into a plurality of power modules 4a to 4f.
- first feed bus bar 5 and the second feed bus bar 6 are formed of a plate-like conductive member and bent in an L-shape, and the wide flat surfaces 5a and 6a are disposed to face each other, and the area is small.
- the flat surfaces 5 b and 6 b are disposed to face the metal casing 7.
- the first power supply bus 5 and the second power supply bus 6 are connected to the power modules 4a to 4f by screws 31 at flat surfaces 5b and 6b having small areas, respectively.
- first feed bus 5 and the second feed bus 6 are disposed to face each other in a plane having a large area, the mutual inductance is reduced, and the first feed bus 5 and the second feed bus 6 Switching noise can be reduced. Further, since the plate-like conductive members of the first feed bus 5 and the second feed bus 6 have a small area facing the metal casing 7, the capacitive coupling C1, C2 becomes small, and the first feed bus 5 and the metal The electrical characteristics between the housing 7 and the electrical characteristics between the second feed bus 6 and the metal housing 7 can be easily equalized.
- the first feed bus bar 5 and the second feed bus bar 6 are respectively formed of plate-shaped conductive members, and the first feed bus bar 5 And the second feed bus 6 are arranged opposite to each other in a plane with a wide area, so that the inductive coupling between the first feed bus 5 and the second feed bus 6 becomes smaller, and the first feed bus It is possible to reduce switching noise generated in the fifth and second feed buses 6.
- the first power supply bus 5 and the second power supply bus 6 are arranged so as to face the metal housing 7 in a plane having a small area. It is possible to reduce the propagation of the switching noise generated in the first power supply bus 5 and the second power supply bus 6 to the metal housing 7 because the capacitive coupling between 7 and 7 is reduced.
- FIG. 11 is a three-dimensional perspective view showing the structure of the power conversion device according to the present embodiment
- FIG. 12 is a plan view.
- the power conversion device according to the present embodiment further includes a case conductive member 41 electrically connected to the metal case 7, and the case conductive member 41 and the metal case 7 Between the first power supply bus 5 and the second power supply bus 6.
- FIG. 13 a cross-sectional structure of a portion shown by C in FIG. 11 is shown in FIG.
- the case conductive member 41 is electrically connected to the metal case 7 by means of a mounting member 42 such as a screw.
- a mounting member 42 such as a screw.
- the first power supply bus 5 and the second power supply bus 6 are disposed between the housing conductive member 41 and the metal housing 7, and capacitive coupling between the first power supply bus 5 and the housing conductive member 41 is provided.
- C1 and the capacitive coupling C2 between the second power supply bus 6 and the metal housing 7 are configured to match or substantially match.
- the distances may be substantially matched, or a magnetic body or a dielectric may be inserted.
- first power supply bus 5 and the second power supply bus 6 are disposed between the housing conductive member 41 and the metal housing 7, the first power supply bus 5 and the housing conductive member 41 The electrical characteristics between them can easily be made to substantially coincide with the electrical characteristics between the second feed bus 6 and the metal housing 7.
- the resin 43 may be molded. At this time, by changing the thickness to be molded by the resin 43 containing a dielectric between the metal casing 7 side and the casing conductive member 41 side, the electricity between the first power supply bus 5 and the casing conductive member 41 is obtained. And the electrical characteristics between the second feed bus 6 and the metal housing 7 are substantially matched. This can reduce the propagation of switching noise generated in the first and second feed buses 5 and 6 to the metal casing 7.
- the casing conductive member 41 electrically connected to the metal casing 7 is further provided, and the casing conductive member 41 and the metal casing 7 Since the first power supply bus 5 and the second power supply bus 6 are disposed between them, the electrical characteristics between the first power supply bus 5 and the casing conductive member 41 can be It can easily be made to substantially match the electrical characteristics with the housing 7.
- Fifth Embodiment a fifth embodiment to which the present invention is applied will be described with reference to the drawings. The detailed description of the same parts as those in the first to fourth embodiments described above will be omitted.
- FIG. 15 is a cross-sectional view for describing the structure of the power conversion device according to the present embodiment.
- a case conductive member 41 is provided between the control device 51 for controlling the power module 4 and the first and second power supply buses 5 and 6. It is characterized by having arranged.
- the control device 51 is a device for controlling ON and OFF of a switch inside the power module 4, and the case conductive member 41 is disposed between the first and second power supply buses 5 and 6. Therefore, the influence of switching noise from the first and second feed buses 5, 6 can be reduced.
- the connection method of each part first, the first feed bus 5 and the positive electrode side of the power module 4 and the smoothing capacitor 8 are connected by the screw 52, and then the second feed bus 6 and the power module 4 and the smoothing capacitor 8 are connected. And the negative electrode side of the Then, the control device 51 is provided by arranging the first and second power supply buses 5, 6 between the metal housing 7 and the housing conductive member 41 and providing the through holes 54 in a part of the housing conductive member 41. And the power module 4 are connected.
- the case conductive member 41 is provided between the control device 51 that controls the power module 4 and the first and second power supply buses 5 and 6. Can be reduced, thereby reducing the influence of switching noise from the first and second feed buses 5 and 6 on the control device 51.
- FIG. 16 is a diagram for explaining the structures of first and second feed buses in the power conversion device according to the present embodiment.
- the first feed bus 5 and the second feed bus 6 cross each other halfway, and are arranged at symmetrical positions with respect to the metal casing 7 It is characterized by The first and second feed buses 5, 6 having such a structure are applied to the above-described first to fifth embodiments.
- the frequency shown in equation (1) can be changed to a higher frequency. It is possible to reduce the propagation of switching noise generated in the first feed bus 5 and the second feed bus 6 due to internal switching to the metal casing 7.
- first and second feed buses 5, 6 face the metal casing 7 in a wide plane, but as shown in FIG. It may be made to face each other.
- the first feed bus bar 5 and the second feed bus bar 6 cross each other in the middle and are located at symmetrical positions with respect to the metal housing 7. Being arranged, the capacitive coupling between the first power supply bus 5 and the metal housing 7 and the capacitive coupling between the second power supply bus 6 and the metal housing 7 are easily made to substantially coincide with each other.
- Can. Seventh Embodiment a seventh embodiment to which the present invention is applied will be described with reference to the drawings. The same parts as those in the first to sixth embodiments described above will not be described in detail.
- FIG. 17 is a diagram for explaining the structures of first and second feed buses in the power conversion device according to the present embodiment.
- the first power supply bus 5 and the second power supply bus 6 are respectively constituted by a plurality of plate-like conductive members 5x, 5y, 6x, 6y.
- the plate-like conductive members 5x, 5y, 6x, 6y are characterized in that they are disposed at symmetrical positions with respect to the metal casing 7.
- the first and second feed buses 5, 6 having such a structure are applied to the above-described first to fifth embodiments.
- the plate-like conductive members 5x, 5y, 6x, 6y in symmetrical positions with respect to the metal housing 7, the electrical characteristics between the first power supply bus 5 and the metal housing 7 can be obtained. It is possible to easily make the electrical characteristics between the second power supply bus 6 and the metal housing 7 approximately match. Thereby, it is possible to reduce the propagation of the switching noise generated in the first power supply bus 5 and the second power supply bus 6 by the switching in the power module 4 to the metal casing 7.
- the first power supply bus 5 and the second power supply bus 6 are each formed of a plurality of plate-shaped conductive members, and each plate-shaped conductive member Are arranged in symmetrical positions with respect to the metal housing 7, so that capacitive coupling between the first power supply bus 5 and the metal housing 7, and between the second power supply bus 6 and the metal housing 7. Capacitive coupling can easily be made to substantially coincide.
- FIG. 18 is a view showing the cross-sectional structure of the portion shown by A in FIG. 1 described above.
- the area of the first feed bus 5 facing the metal housing 7 and the area of the second feed bus 6 facing the metal housing 7 By adjusting the relationship with the area, the capacitive coupling C1 between the first power supply bus 5 and the metal housing 7 and the capacitive coupling C2 between the second power supply bus 6 and the metal housing 7 are matched. Or it is characterized by having made it substantially match.
- the distances d1 and d2 are set in advance, and the relationship between the area S1 of the first power supply bus 5 facing the metal housing 7 and the area S2 of the second power supply bus 6 facing the metal housing 7 to match or substantially match the capacitive coupling C1 between the first power supply bus 5 and the metal housing 7 and the capacitive coupling C2 between the second power supply bus 6 and the metal housing 7 be able to.
- the dielectric constant between the first power supply bus 5 and the metal housing 7 and the second power supply bus 6 as shown in FIG.
- the capacitive coupling C2 between them may be matched or substantially matched.
- the capacitive coupling C1 between the first power supply bus 5 and the metal housing 7 and the capacitive coupling C2 between the second power supply bus 6 and the metal housing 7 are matched or substantially matched.
- the small plane of the area of the first and second feed buses 5 and 6 is opposed to the metal casing 7, but as shown in FIG. 19, the first and second feed buses 5 and 6 are shown.
- the flat surface having a large area may be opposed to the metal casing 7.
- this arrangement reduces the area in which the first feed bus bar 5 faces the second feed bus bar 6. Therefore, the plate-like conductive member 55 is disposed to face the second feed bus bar 6 in a plane having a large area, and the plate-like conductive member 55 is connected to the first feed bus bar 5. Thereby, the inductive coupling between the first feed bus 5 and the second feed bus 6 is reduced, and the switching noise generated in the first feed bus 5 and the second feed bus 6 can be reduced.
- the capacitive coupling C1 between the first power supply bus 5 and the metal housing 7, the second power supply bus 6, and the metal housing 7 Since the capacitive coupling C2 between them is substantially matched, it is possible to reduce the propagation of the switching noise to the metal casing 7 and reduce the radiation noise.
- the relationship between the area of the first power supply bus 5 facing the metal housing 7 and the area of the second power supply bus 6 facing the metal housing 7 is adjusted Since the capacitive coupling C1 between the first power supply bus 5 and the metal housing 7 and the capacitive coupling C2 between the second power supply bus 6 and the metal housing 7 are made to substantially coincide with each other, switching The propagation of noise to the metal housing 7 can be reduced to reduce the radiation noise.
- the relationship between the distance between the first power supply bus 5 and the metal housing 7 and the distance between the second power supply bus 6 and the metal housing 7 A relationship between the dielectric constant between the first power supply bus 5 and the metal housing 7 and the dielectric constant between the second power supply bus 6 and the metal housing 7, and Capacitive coupling between the first power supply bus 5 and the metal housing 7 by adjusting the relationship between the area of the power supply bus 5 of 1 and the area of the second power supply bus 6 facing the metal housing 7 Since C1 and the capacitive coupling C2 between the second feed bus 6 and the metal housing 7 are made to substantially coincide with each other, propagation of switching noise to the metal housing 7 can be reduced to reduce radiation noise. it can.
- the present invention is not limited to the above-mentioned embodiment, and even if it is a form other than this embodiment, according to design etc., if it is a range which does not deviate from the technical idea concerning the present invention.
- various modifications are possible.
- the capacitive coupling C1 between the first feed bus 5 and the metal housing 7 and the capacitive coupling between the second feed bus 6 and the metal housing 7 make C2 almost match. Therefore, the propagation of the switching noise to the metal casing 7 can be reduced to reduce the radiation noise. Therefore, the power conversion device according to one aspect of the present invention is industrially applicable.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Inverter Devices (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
Description
[第1実施形態]
図1は本実施形態に係る電力変換装置の構造を示す立体斜視図であり、図2は平面図、図3は回路図である。
以上詳細に説明したように、本実施形態に係る電力変換装置によれば、第1の給電母線5と金属筐体7との間の容量結合C1と第2の給電母線6と金属筐体7との間の容量結合C2とを略一致させたので、スイッチングノイズが金属筐体7へ伝播することを低減して放射ノイズを低減させることができる。
[第2実施形態]
次に、本発明を適用した第2実施形態について図面を参照して説明する。尚、上述した第1実施形態と同一の部分については詳細な説明を省略する。
以上詳細に説明したように、本実施形態に係る電力変換装置によれば、第1の給電母線5と金属筐体7との間の容量結合C1と第2の給電母線6と金属筐体7との間の容量結合C2とを略一致させたので、スイッチングノイズが金属筐体7へ伝播することを低減して放射ノイズを低減させることができる。
[第3実施形態]
次に、本発明を適用した第3実施形態について図面を参照して説明する。尚、上述した第1及び第2実施形態と同一の部分については詳細な説明を省略する。
以上詳細に説明したように、本実施形態に係る電力変換装置によれば、第1の給電母線5と第2の給電母線6とをそれぞれ板状導電部材で形成し、第1の給電母線5と第2の給電母線6とを互いに面積の広い平面で対向させて配置したので、第1の給電母線5と第2の給電母線6との間の誘導結合が小さくなり、第1の給電母線5と第2の給電母線6に生じるスイッチングノイズを低減させることができる。
[第4実施形態]
次に、本発明を適用した第4実施形態について図面を参照して説明する。尚、上述した第1~第3実施形態と同一の部分については詳細な説明を省略する。
以上詳細に説明したように、本実施形態に係る電力変換装置によれば、金属筐体7と導通している筐体導電部材41をさらに設け、筐体導電部材41と金属筐体7との間に第1の給電母線5と第2の給電母線6とを配置したので、第1の給電母線5と筐体導電部材41との間の電気的特性を、第2の給電母線6と金属筐体7との間の電気的特性と容易に略一致させることができる。
[第5実施形態]
次に、本発明を適用した第5実施形態について図面を参照して説明する。尚、上述した第1~第4実施形態と同一の部分については詳細な説明を省略する。
以上詳細に説明したように、本実施形態に係る電力変換装置によれば、パワーモジュール4を制御する制御装置51と第1及び第2の給電母線5、6との間に筐体導電部材41を配置したので、制御装置51に対して第1及び第2の給電母線5、6からのスイッチングノイズによる影響を低減することができる。
[第6実施形態]
次に、本発明を適用した第6実施形態について図面を参照して説明する。尚、上述した第1~第5実施形態と同一の部分については詳細な説明を省略する。
以上詳細に説明したように、本実施形態に係る電力変換装置によれば、第1の給電母線5と第2の給電母線6が途中で交差し、金属筐体7に対して対称な位置に配置されているので、第1の給電母線5と金属筐体7との間の容量結合と、第2の給電母線6と金属筐体7との間の容量結合とを容易に略一致させることができる。
[第7実施形態]
次に、本発明を適用した第7実施形態について図面を参照して説明する。尚、上述した第1~第6実施形態と同一の部分については詳細な説明を省略する。
以上詳細に説明したように、本実施形態に係る電力変換装置によれば、第1の給電母線5と第2の給電母線6をそれぞれ複数の板状導電部材で構成し、各板状導電部材を金属筐体7に対して対称な位置に配置したので、第1の給電母線5と金属筐体7との間の容量結合と、第2の給電母線6と金属筐体7との間の容量結合とを容易に略一致させることができる。
[第8実施形態]
次に、本発明を適用した第8実施形態について図面を参照して説明する。尚、上述した第1~7実施形態と同一の部分については詳細な説明を省略する。
S1=L1×w1
によって算出することができる。
S2=L2×w2
によって算出することができる。
S1/d1=S2/d2 (6)
の関係を満たす必要がある。
以上詳細に説明したように、本実施形態に係る電力変換装置によれば、第1の給電母線5と金属筐体7との間の容量結合C1と第2の給電母線6と金属筐体7との間の容量結合C2とを略一致させたので、スイッチングノイズが金属筐体7へ伝播することを低減して放射ノイズを低減させることができる。
2 直流電源
3 電動機
4、4a~4f パワーモジュール
5、5x、5y 第1の給電母線
6、6x、6y 第2の給電母線
7 金属筐体
8 平滑コンデンサ
9 バスバー
10、11 シールド線
17、43 樹脂
21 誘電体
22 磁性体
31、52、53 ネジ
41 筐体導電部材
42 取り付け部材
51 制御装置
54 貫通孔
Claims (17)
- 直流電源から供給された直流電力を交流電力に変換する電力変換装置であって、
前記直流電源の正極と接続される第1の入力端子と、
前記直流電源の負極と接続される第2の入力端子と、
前記直流電源から供給された直流電力を交流電力に変換するパワーモジュールと、
前記第1の入力端子と前記パワーモジュールとを接続する第1の給電母線と、
前記第2の入力端子と前記パワーモジュールとを接続する第2の給電母線と、
前記第1及び第2の給電母線と前記パワーモジュールとを収容する金属筐体とを備え、
前記第1の給電母線と前記金属筐体との間の容量結合と前記第2の給電母線と前記金属筐体との間の容量結合とを略一致させることを特徴とする電力変換装置。 - 前記第1の給電母線と前記金属筐体との間の距離と前記第2の給電母線と前記金属筐体との間の距離との関係を調整することによって、前記第1の給電母線と前記金属筐体との間の容量結合と前記第2の給電母線と前記金属筐体との間の容量結合とを略一致させることを特徴とする請求項1に記載の電力変換装置。
- 前記第1の給電母線と前記金属筐体との間の誘電率と前記第2の給電母線と前記金属筐体との間の誘電率との関係を調整することによって、前記第1の給電母線と前記金属筐体との間の容量結合と前記第2の給電母線と前記金属筐体との間の容量結合とを略一致させることを特徴とする請求項1に記載の電力変換装置。
- 前記第1の給電母線と前記金属筐体との間および、または前記第2の給電母線と前記金属筐体との間に誘電体または磁性体を配置することによって、前記第1の給電母線と前記金属筐体との間の誘電率と前記第2の給電母線と前記金属筐体との間の誘電率との関係を調整することを特徴とする請求項3に記載の電力変換装置。
- 前記金属筐体に対向する前記第1の給電母線の面積と前記金属筐体に対向する前記第2の給電母線の面積との関係を調整することによって、前記第1の給電母線と前記金属筐体との間の容量結合と前記第2の給電母線と前記金属筐体との間の容量結合とを略一致させることを特徴とする請求項1に記載の電力変換装置。
- 前記第1の給電母線と前記金属筐体との間の距離と前記第2の給電母線と前記金属筐体との間の距離との関係と、
前記第1の給電母線と前記金属筐体との間の誘電率と前記第2の給電母線と前記金属筐体との間の誘電率との関係と、
前記金属筐体に対向する前記第1の給電母線の面積と前記金属筐体に対向する前記第2の給電母線の面積との関係と
を調整することによって、前記第1の給電母線と前記金属筐体との間の容量結合と前記第2の給電母線と前記金属筐体との間の容量結合とを略一致させることを特徴とする請求項1に記載の電力変換装置。 - 前記第1の給電母線と前記第2の給電母線とをそれぞれ板状導電部材で形成し、前記第1の給電母線と前記第2の給電母線とを互いに面積の広い平面で対向させて配置したことを特徴とする請求項1~6のいずれか1項に記載の電力変換装置。
- 前記第1の給電母線と前記第2の給電母線は、面積の小さい平面を前記金属筐体に対向して配置されていることを特徴とする請求項7に記載の電力変換装置。
- 前記第1の給電母線と前記第2の給電母線は樹脂でモールドされていることを特徴とする請求項1~8のいずれか1項に記載の電力変換装置。
- 前記金属筐体と導通している筐体導電部材をさらに設け、前記筐体導電部材と前記金属筐体との間に前記第1の給電母線と前記第2の給電母線とを配置したことを特徴とする請求項1~9のいずれか1項に記載の電力変換装置。
- 前記パワーモジュールを制御する制御装置と前記第1及び第2の給電母線との間に、前記筐体導電部材を配置したことを特徴とする請求項10に記載の電力変換装置。
- 前記第1の給電母線と前記第2の給電母線は途中で交差し、前記金属筐体に対して対称な位置に配置されていることを特徴とする請求項1~11のいずれか1項に記載の電力変換装置。
- 前記第1の給電母線と前記第2の給電母線はそれぞれ複数の板状導電部材で構成され、前記板状導電部材は前記金属筐体に対して対称な位置に配置されていることを特徴とする請求項1~11のいずれか1項に記載の電力変換装置。
- 前記第1の給電母線と前記金属筐体との間の容量結合と前記第2の給電母線と前記金属筐体との間の容量結合との差を、前記第1の給電母線と前記金属筐体との間の容量結合と前記第2の給電母線と前記金属筐体との間の容量結合との和で割った容量結合の商が2以下であることを特徴とする請求項1~13のいずれか1項に記載の電力変換装置。
- 前記第1の給電母線と前記金属筐体との間の誘導結合と前記第2の給電母線と前記金属筐体との間の誘導結合との差を、前記第1の給電母線と前記金属筐体との間の誘導結合と前記第2の給電母線と前記金属筐体との間の誘導結合との和で割った誘導結合の商が2以下であることを特徴とする請求項1~14のいずれか1項に記載の電力変換装置。
- 前記容量結合の商と前記誘導結合の商との積が2以下であることを特徴とする請求項15に記載の電力変換装置。
- 直流電源から供給された直流電力を交流電力に変換する電力変換装置であって、
前記直流電源の正極と接続される第1の入力端子と、
前記直流電源の負極と接続される第2の入力端子と、
前記直流電源から供給された直流電力を交流電力に変換する電力変換手段と、
前記第1の入力端子と前記電力変換手段とを接続する第1の給電手段と、
前記第2の入力端子と前記電力変換手段とを接続する第2の給電手段と、
前記第1及び第2の給電手段と前記電力変換手段とを収容する金属製の収納手段とを備え、
前記第1の給電手段と前記収納手段との間の容量結合と前記第2の給電手段と前記収納手段との間の容量結合とを略一致させることを特徴とする電力変換装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/357,939 US9755544B2 (en) | 2011-11-28 | 2012-10-19 | Power conversion device |
EP12853286.8A EP2787627B1 (en) | 2011-11-28 | 2012-10-19 | Power conversion device |
JP2013547064A JP5733421B2 (ja) | 2011-11-28 | 2012-10-19 | 電力変換装置 |
CN201280058532.XA CN103975517B (zh) | 2011-11-28 | 2012-10-19 | 电力变换装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011258589 | 2011-11-28 | ||
JP2011-258589 | 2011-11-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013080698A1 true WO2013080698A1 (ja) | 2013-06-06 |
Family
ID=48535169
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/077104 WO2013080698A1 (ja) | 2011-11-28 | 2012-10-19 | 電力変換装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9755544B2 (ja) |
EP (1) | EP2787627B1 (ja) |
JP (1) | JP5733421B2 (ja) |
CN (1) | CN103975517B (ja) |
WO (1) | WO2013080698A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016092924A (ja) * | 2014-10-31 | 2016-05-23 | 日産自動車株式会社 | 電力変換装置 |
WO2016194050A1 (ja) * | 2015-05-29 | 2016-12-08 | 日産自動車株式会社 | 電力変換装置 |
JP2017005860A (ja) * | 2015-06-10 | 2017-01-05 | 日産自動車株式会社 | 電力変換装置 |
WO2017221456A1 (ja) * | 2016-06-21 | 2017-12-28 | 三菱電機株式会社 | 電力変換装置 |
JPWO2017208418A1 (ja) * | 2016-06-02 | 2019-04-11 | 日産自動車株式会社 | 電力変換装置 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5701412B2 (ja) * | 2013-02-21 | 2015-04-15 | 株式会社デンソー | 電力変換装置 |
JP6572910B2 (ja) * | 2014-12-26 | 2019-09-11 | 日産自動車株式会社 | 電力変換装置 |
JP6218150B2 (ja) * | 2015-02-25 | 2017-10-25 | 日立オートモティブシステムズ株式会社 | 電力変換装置 |
CN108604866B (zh) * | 2016-01-21 | 2020-06-12 | 三菱电机株式会社 | 电力变换装置 |
JP6809591B1 (ja) * | 2019-10-29 | 2021-01-06 | ダイキン工業株式会社 | 制御電源装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0937593A (ja) * | 1995-07-20 | 1997-02-07 | Mitsubishi Electric Corp | インバータを用いたモータ駆動装置 |
JP2005236108A (ja) | 2004-02-20 | 2005-09-02 | Toyota Motor Corp | 半導体装置 |
JP2008043023A (ja) * | 2006-08-03 | 2008-02-21 | Toyota Motor Corp | 電気回路構造 |
JP2010197093A (ja) * | 2009-02-23 | 2010-09-09 | Hitachi Automotive Systems Ltd | 状態判別装置 |
JP2011200074A (ja) * | 2010-03-23 | 2011-10-06 | Hitachi Automotive Systems Ltd | 電力変換装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4872102A (en) * | 1986-04-28 | 1989-10-03 | Dimensions Unlimited, Inc. | D.C. to A.C. inverter having improved structure providing improved thermal dissipation |
JP3228021B2 (ja) * | 1994-09-13 | 2001-11-12 | 富士電機株式会社 | インバータユニット及びインバータ装置 |
JP2004088936A (ja) * | 2002-08-28 | 2004-03-18 | Fuji Electric Holdings Co Ltd | 電力変換装置の導体構造 |
JP4751810B2 (ja) * | 2006-11-02 | 2011-08-17 | 日立オートモティブシステムズ株式会社 | 電力変換装置 |
-
2012
- 2012-10-19 WO PCT/JP2012/077104 patent/WO2013080698A1/ja active Application Filing
- 2012-10-19 US US14/357,939 patent/US9755544B2/en active Active
- 2012-10-19 JP JP2013547064A patent/JP5733421B2/ja active Active
- 2012-10-19 CN CN201280058532.XA patent/CN103975517B/zh active Active
- 2012-10-19 EP EP12853286.8A patent/EP2787627B1/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0937593A (ja) * | 1995-07-20 | 1997-02-07 | Mitsubishi Electric Corp | インバータを用いたモータ駆動装置 |
JP2005236108A (ja) | 2004-02-20 | 2005-09-02 | Toyota Motor Corp | 半導体装置 |
JP2008043023A (ja) * | 2006-08-03 | 2008-02-21 | Toyota Motor Corp | 電気回路構造 |
JP2010197093A (ja) * | 2009-02-23 | 2010-09-09 | Hitachi Automotive Systems Ltd | 状態判別装置 |
JP2011200074A (ja) * | 2010-03-23 | 2011-10-06 | Hitachi Automotive Systems Ltd | 電力変換装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2787627A4 |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016092924A (ja) * | 2014-10-31 | 2016-05-23 | 日産自動車株式会社 | 電力変換装置 |
WO2016194050A1 (ja) * | 2015-05-29 | 2016-12-08 | 日産自動車株式会社 | 電力変換装置 |
KR20180006428A (ko) * | 2015-05-29 | 2018-01-17 | 닛산 지도우샤 가부시키가이샤 | 전력 변환 장치 |
CN107710582A (zh) * | 2015-05-29 | 2018-02-16 | 日产自动车株式会社 | 电力转换装置 |
JPWO2016194050A1 (ja) * | 2015-05-29 | 2018-03-22 | 日産自動車株式会社 | 電力変換装置 |
KR101889249B1 (ko) | 2015-05-29 | 2018-08-16 | 닛산 지도우샤 가부시키가이샤 | 전력 변환 장치 |
CN107710582B (zh) * | 2015-05-29 | 2019-07-16 | 日产自动车株式会社 | 电力转换装置 |
US10734890B2 (en) | 2015-05-29 | 2020-08-04 | Nissan Motor Co., Ltd. | Power conversion device |
JP2017005860A (ja) * | 2015-06-10 | 2017-01-05 | 日産自動車株式会社 | 電力変換装置 |
JPWO2017208418A1 (ja) * | 2016-06-02 | 2019-04-11 | 日産自動車株式会社 | 電力変換装置 |
WO2017221456A1 (ja) * | 2016-06-21 | 2017-12-28 | 三菱電機株式会社 | 電力変換装置 |
JPWO2017221456A1 (ja) * | 2016-06-21 | 2018-12-27 | 三菱電機株式会社 | 電力変換装置 |
Also Published As
Publication number | Publication date |
---|---|
US20140286070A1 (en) | 2014-09-25 |
CN103975517A (zh) | 2014-08-06 |
CN103975517B (zh) | 2016-09-21 |
EP2787627A1 (en) | 2014-10-08 |
JPWO2013080698A1 (ja) | 2015-04-27 |
US9755544B2 (en) | 2017-09-05 |
JP5733421B2 (ja) | 2015-06-10 |
EP2787627B1 (en) | 2022-12-07 |
EP2787627A4 (en) | 2016-10-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2013080698A1 (ja) | 電力変換装置 | |
KR102505377B1 (ko) | 인쇄회로기판 및 버스 바들을 구비한 필터 | |
US8953335B2 (en) | Semiconductor control device | |
CN102195501B (zh) | 电力变换装置 | |
CN102025319B (zh) | 低电感电力电子组件 | |
US11257616B2 (en) | Power conversion device and high-voltage noise filter | |
CN110447164B (zh) | 电力转换装置 | |
US10673349B2 (en) | Power conversion device with efficient cooling structure | |
US11013104B2 (en) | Power conversion apparatus | |
CN103368409B (zh) | 功率转换装置 | |
JP6980630B2 (ja) | 高電圧フィルタおよび電力変換装置 | |
JP2014117047A (ja) | 電力変換装置 | |
US20200119655A1 (en) | Power supply apparatus | |
JP2016092924A (ja) | 電力変換装置 | |
JP6964192B2 (ja) | 電力変換装置 | |
JP2022549664A (ja) | 減衰が改善されたdcリンクを備えるemcフィルタコンポーネント、半導体コンポーネント、及び/又はdcリンクemcシステム | |
JP2013105705A (ja) | 接続コネクタ | |
JP2012178937A (ja) | 電力変換装置 | |
JP5708298B2 (ja) | 電力変換装置 | |
CN113906675A (zh) | 噪声滤波器以及电源装置 | |
CN111937290A (zh) | 电力转换装置和电容器模块 | |
CN210041652U (zh) | 直流-直流变换器及电动车 | |
US20240015916A1 (en) | Inverter with current sensor and electromagnetic interference (emi) filter | |
JP6961111B2 (ja) | 電力供給装置およびコンデンサ | |
EP4350969A1 (en) | Bus bar heat dissipation structure and inverter device |
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: 12853286 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2013547064 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14357939 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2012853286 Country of ref document: EP |