WO2021256407A1 - Motor drive device - Google Patents

Motor drive device Download PDF

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Publication number
WO2021256407A1
WO2021256407A1 PCT/JP2021/022429 JP2021022429W WO2021256407A1 WO 2021256407 A1 WO2021256407 A1 WO 2021256407A1 JP 2021022429 W JP2021022429 W JP 2021022429W WO 2021256407 A1 WO2021256407 A1 WO 2021256407A1
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WO
WIPO (PCT)
Prior art keywords
wiring board
motor drive
drive device
protrusion
hole
Prior art date
Application number
PCT/JP2021/022429
Other languages
French (fr)
Japanese (ja)
Inventor
前川拓也
佐々木拓
松田涼
Original Assignee
ファナック株式会社
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Filing date
Publication date
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Publication of WO2021256407A1 publication Critical patent/WO2021256407A1/en

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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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits

Definitions

  • the present invention relates to a motor drive device.
  • a motor device including a wiring board on which electronic components are mounted is disclosed (for example, International Publication No. 2018/096710).
  • a motor drive device may be manufactured by stacking a plurality of wiring boards. In this case, it is necessary to position the wiring boards to be stacked. In order to facilitate positioning, it is conceivable to mount the positioning component on the wiring board, but this causes a decrease in the mounting area of the wiring board and an increase in cost.
  • An object of the present invention is to provide a motor drive device that facilitates both positioning of a wiring board and securing of a mounting area.
  • the motor drive device connects a first wiring board, a second wiring board arranged at intervals with respect to the first wiring board, and the first wiring board and the second wiring board.
  • a motor driving device including a flat plate-shaped conductive member, wherein the conductive member is provided on the first wiring plate side and is connected to the first wiring plate. It has a second end portion connected to the second wiring board and a connection portion connecting the first end portion and the second end portion, and the second end portion has the second wiring.
  • a protrusion protruding toward the plate side is provided.
  • FIG. 1 is an exploded perspective view showing a circuit for a motor drive device according to an embodiment before assembly.
  • FIG. 2 is a perspective view showing a circuit for a motor drive device according to an embodiment after assembly.
  • FIG. 3 is a perspective view showing a circuit for a motor drive device according to the first modification.
  • FIG. 4 is a perspective view showing a circuit for a motor drive device according to Modification 2.
  • FIG. 5 is an enlarged perspective view showing the relationship between the protrusion and the notch.
  • FIG. 6 is a perspective view showing a circuit for a motor drive device according to a modification 3.
  • FIG. 7 is an enlarged perspective view showing the relationship between the protrusion and the hole.
  • FIG. 8 is a perspective view showing a circuit for a motor drive device according to the modified example 4.
  • FIG. 9 is a perspective view showing a circuit for a motor drive device according to the modified example 5.
  • the motor drive device according to the embodiment has a motor drive device circuit 10.
  • (Embodiment) 1 and 2 are an exploded perspective view and a perspective view showing a motor drive device circuit 10 according to an embodiment before and after assembly, respectively.
  • the circuit 10 for the motor drive device includes a base 12, a wiring board 14 (first wiring board), a wiring board 16 (second wiring board), a power element 22, an electrolytic capacitor 24, and a bus bar 40 (40a, 40b: conductive member). ).
  • the Z-axis direction is the direction (upward) against gravity.
  • the wiring boards 14 and 16 have a square or rectangular shape when viewed from above.
  • the direction in which the edge portion Ex of the wiring board 16 extends is the X-axis direction
  • the direction in which the edge portion Ey of the wiring board 16 extends is the Y-axis direction.
  • the base 12 is a base on which the wiring boards 14 and 16 are installed.
  • the wiring board 14 is provided on the base 12, and the wiring board 16 is provided on the wiring board 14.
  • the wiring boards 14 and 16 are boards for arranging and wiring circuit parts, and include a printed circuit board and a resin board.
  • a support column (spacer) 122 for maintaining a distance between the base 12 and the wiring board 14 is provided between the base 12 and the wiring board 14.
  • the wiring board 14 is provided with a support column (spacer) 32 for maintaining a distance between the wiring board 14 and the wiring board 16.
  • Four columns 122 and 32 are provided, and the four columns 122 are attached to the four corners of the base 12 and support the four corners of the wiring board 14.
  • the four columns 32 are attached to the wiring board 14 and support the four corners of the wiring board 16.
  • a screw hole 322 is provided in the upper part of the support column 32, and a through hole 162 is provided in the wiring board 16.
  • the wiring board 16 is positioned with respect to the wiring board 14 by using the bus bar 40.
  • the wiring board 16 is positioned, and the wiring board 16 is placed on the four columns 32 of the wiring board 14.
  • the fastener 34 for example, a screw
  • the wiring board 16 can be attached to the wiring board 14 (see FIG. 2 after assembly).
  • the wiring boards 14 and 16 have an insulating plate and wiring and terminals arranged on the main surface of the insulating plate. The wiring and terminals may also be arranged inside the wiring boards 14 and 16.
  • a power element 22 is provided on one of the wiring boards 14 and 16, and an electrolytic capacitor 24 is provided on the other of the wiring boards 14 and 16.
  • the power element 22 is arranged on the lower surface of the wiring board 14, and the electrolytic capacitor 24 is arranged on the upper surface of the wiring board 16.
  • the number of electrolytic capacitors 24 is 1, but a plurality of electrolytic capacitors 24 may be used.
  • the bus bar 40 (40a, 40b) is a flat plate-shaped conductive member composed of a conductor (for example, copper or aluminum) and electrically connecting the wiring board 14 and the wiring board 16.
  • the bus bar 40 is a current path through which a current flows between the wiring board 14 and the wiring board 16.
  • the bus bar 40 has a protrusion 48 and also functions as a positioning member for positioning the wiring board 16 with respect to the wiring board 14.
  • two bus bars 40a and bus bars 40b are shown between the wiring board 14 and the wiring board 16, but three or more bus bars 40 may be arranged.
  • the bus bar 40 (40a, 40b) has ends 42, 44, a connection 46, and a protrusion 48. It is sufficient that any one of the plurality of bus bars 40 has a protrusion 48, and there may be a bus bar 40 that does not have the protrusion 48.
  • the end portion 42 (first end portion) is provided on the surface of the wiring board 14 on the wiring plate 16 side (here, the upper surface of the wiring board 14), and is connected to the wiring of the wiring board 14.
  • the end portion 44 (second end portion) is in contact with the surface of the wiring board 16 on the wiring plate 14 side (here, the lower surface of the wiring board 16) and is connected to the wiring of the wiring board 16.
  • the end portion 42 and the end portion 44 may be directly connected to the wiring, or may be indirectly connected to the wiring via a conductive member.
  • the end portion 44 is used for positioning the wiring board 16. Therefore, it is preferable that the end portion 44 is flat and comes into contact with the wiring plate 16 after assembly.
  • the end portion 42 does not need to satisfy these requirements (planar shape, contact with the wiring board 14), but may be satisfied.
  • connection portion 46 connects the end portion 42 and the end portion 44.
  • the connecting portion 46 of the bus bar 40a is composed of a flat plate that is not bent
  • the connecting portion 46 of the bus bar 40b is composed of a flat plate that is bent.
  • Each of the connecting portion 46 of the bus bar 40a and the connecting portion 46 of the bus bar 40b has a function of connecting the end portion 42 and the end portion 44.
  • the protrusion 48 is for positioning the wiring board 16 with respect to the wiring board 14.
  • the protrusion 48 is provided at the end 44 and projects toward the wiring board 16.
  • the protrusion 48 has a flat plate shape extending upward (in the positive direction of the Z axis, substantially at right angles to the end 44) from the edge of the end 44.
  • the wiring board 16 has two holes 36 corresponding to the protrusions 48 of the bus bar 40a and the bus bar 40b.
  • the wiring board 16 is positioned with respect to the bus bar 40, and thus the wiring board 16 is positioned with respect to the wiring board 14.
  • This hole 36 has an elongated shape.
  • the wiring plate 16 is positioned by aligning the width direction of the protrusion 48 with the extension direction of the hole 36 and inserting the protrusion 48 into the hole 36. In this way, by combining the hole 36 having the stretching direction and the protrusion 48 having the width direction, the positioning accuracy can be improved.
  • the wiring plate 16 can be positioned by the combination of the hole 36 of 1 and the protrusion 48 of 1, but in the present embodiment, by using the two protrusions 48, more accurate positioning is possible. There is.
  • the bus bar 40 (40a, 40b) has the protrusion 48, the positioning between the wiring boards 14 and 16 at the time of manufacturing the motor drive device becomes easy. That is, with the end 42 of the bus bar 40 connected to the wiring board 14, the protrusion 48 of the bus bar 40 is inserted into the hole 36 of the wiring board 16 for positioning. After that, the wiring board 14 and the wiring board 16 are connected by using the fastener 34.
  • the bus bar 40 is useful for both current path and positioning. This facilitates the positioning of the wiring board 16 with respect to the wiring board 14. Further, it becomes easy to secure the mounting area on the wiring board 14 and the wiring board 16 at the same time and to reduce the cost. In addition, efficient and low-cost automatic assembly becomes easy. For example, it is not necessary to confirm the position of the member with high accuracy, and it is possible to perform automatic assembly using relatively simple imaging and image processing.
  • FIG. 3 is a perspective view showing the motor drive device circuit 10 according to the first modification.
  • the same parts as those in the embodiment are designated by the same reference numerals as those in the embodiment, and detailed description thereof will be omitted.
  • each of the protruding portion 48 of the bus bar 40a and the bus bar 40b abuts on the edge portion Eye and the edge portion Ex of the wiring board 16.
  • the wiring board 16 can be positioned by using the edge portion E (Ex, Ey) instead of the hole 36.
  • FIG. 4 is a perspective view showing the motor drive device circuit 10 according to the modified example 2.
  • the same parts as those in the embodiment are designated by the same reference numerals as those in the embodiment, and detailed description thereof will be omitted.
  • the wiring board 16 has a notch 38 at the edge portion Eye, and the protrusion 48 of the bus bar 40a is in contact with the notch 38.
  • FIG. 5 is an enlarged perspective view showing the relationship between the protrusion 48 and the notch 38.
  • the wiring board 16 can be positioned by using the notch 38 instead of the hole 36 of the embodiment or the edge E of the modification 1.
  • the hole 36 and the notch 38 are combined, but the wiring board 16 can be positioned by using only the notch 38.
  • a notch 38 may be formed at the edge Ex along the X-axis, and the protrusion 48 of the bus bar 40b may be arranged so as to abut on the notch 38.
  • the protrusion 48 may be tapered to facilitate guiding the protrusion 48 to the center of the notch 38.
  • FIG. 6 is a perspective view showing the motor drive device circuit 10 according to the modified example 3.
  • the same parts as those in the embodiment are designated by the same reference numerals as those in the embodiment, and detailed description thereof will be omitted.
  • the protrusion 48 Since the protrusion 48 is tapered, it is easy to guide the protrusion 48 to the center of the hole 36. That is, even if the protrusion 48 is displaced with respect to the center of the hole 36 in the width direction D (extension direction of the hole 36) of the protrusion 48 when the protrusion 48 is inserted, the protrusion 48 is formed into a hole. By inserting it into 36, the protrusion 48 can be guided to the center of the hole 36 in the width direction D.
  • the width directions Da and Db (corresponding to the extending direction of the hole 36) of the bus bar 40a and the protrusion 48 of the bus bar 40b intersect each other.
  • the angle ⁇ formed by the width directions Da and Db is set to approximately 90 ° (the width directions of the protrusions 48 are orthogonal to each other).
  • the position may be displaced in the direction perpendicular to the width directions Da and Db (for example, the X-axis direction).
  • the two holes 36 corresponding to the two protrusions 48 are used, but instead of this, any combination of the holes 36, the notch 38, and the edge E can be used.
  • the protruding portion 48 of the bus bar 40a and the bus bar 40b is tapered. Therefore, it becomes easy to guide the protrusion 48 to the center of the hole 36.
  • FIG. 9 is a perspective view showing the motor drive device circuit 10 according to the modified example 5.
  • the same parts as those in the embodiment are designated by the same reference numerals as those in the embodiment, and detailed description thereof will be omitted.
  • the protrusion 48 can be used for positioning in association with any of the hole 36, the notch 38, and the edge E.
  • the wiring board 16 may have (1 or) a plurality of holes 36, (1 or) a plurality of notches 38, (1 or) a plurality of edges E, and a combination thereof.
  • the wiring board 16 can be positioned.
  • the combination of the hole 36 and the notch 38 may be used for positioning.
  • the combination of the hole 36 and the edge E may be used for positioning.
  • the combination of the notch 38 and the edge E may be used for positioning.
  • the combination of the hole 36, the notch 38, and the edge E may be used for positioning.
  • each of the plurality of protrusions 48 appropriately corresponds to any one of the hole 36, the notch 38, or the edge E. Can be made to.
  • the protrusion 48 corresponding to the hole 36 or the notch 38 can be tapered to facilitate the guidance of the protrusion 48 to the center of the hole 36 or the notch 38. Further, by crossing the widthwise Da and Db of the plurality of protrusions 48, the positioning accuracy can be improved. In this case, any combination of the hole 36, the notch 38, or the edge E is possible.
  • the motor drive device includes a first wiring plate (wiring plate 14), a second wiring plate (wiring plate 16) arranged at intervals from the first wiring plate, and the first wiring plate.
  • a motor drive device including a flat plate-shaped conductive member (bus bar 40, 40a, 40b) for connecting the second wiring plate and the second wiring plate, the conductive member is provided on the first wiring plate side.
  • the conductive member can be used for both the current path and the positioning between the wiring boards, and it becomes easy to achieve both the positioning of the wiring boards and the securing of the mounting area.
  • the protrusion abuts on the edge (E, Ex, Ey) of the second wiring board. This enables positioning by the edge portion of the second wiring board and the protrusion portion of the conductive member.
  • a hole (36) or a notch (38) is formed in the second wiring board, and the protrusion is inserted into the hole or the notch. This enables positioning by the hole or notch of the second wiring board and the protrusion of the conductive member.
  • the width (L0) of the opening of the hole or the notch is wider than the width (L1) of the end of the protrusion. This facilitates the insertion of the protrusion into the opening of the hole or notch.
  • the conductive member is provided with at least two of the protrusions, and the width directions (Da, Db) of the two protrusions intersect each other. Thereby, the accuracy of positioning can be improved.
  • the motor drive device includes a plurality of the conductive members that connect the first wiring board and the second wiring board. Thereby, the accuracy of positioning can be improved by using the plurality of the conductive members.
  • a power element (22) is provided on one of the first wiring board and the second wiring board, and an electrolytic capacitor (24) is provided on the other of the first wiring board and the second wiring board. It will be provided. As a result, the distance between the power element and the electrolytic capacitor, and eventually the parasitic inductance, can be reduced.

Abstract

This motor drive device comprises: a first wiring board (14); a second wiring board (16) arranged having a gap with respect to the first wiring board; and flat plate-shaped electrically conductive members (40, 40a, 40b) that connect the first wiring board and the second wiring board. The electrically conductive members have a first end part (42) that is provided on the first wiring board side, and that is connected to the first wiring board, a second end part (44) that is connected to the second wiring board, and a connecting part (46) that connects the first end part and the second end part, and a projecting part (48) that protrudes facing the second wiring board side is provided on the second end part.

Description

モータ駆動装置Motor drive
　本発明は、モータ駆動装置に関する。 The present invention relates to a motor drive device.
　電子部品が実装された配線板を備えるモータ装置が開示されている（例えば、国際公開第２０１８／０９６７１０号）。ここで、モータ駆動装置の小型化のために、複数の配線板を積み重ねて、モータ駆動装置が作製されることがある。この場合、積み重ねる配線板の位置決めが必要となる。位置決めの容易化のために、位置決め用の部品を配線板に実装することが考えられるが、配線板の実装面積の低下およびコストの増加を招く。 A motor device including a wiring board on which electronic components are mounted is disclosed (for example, International Publication No. 2018/096710). Here, in order to reduce the size of the motor drive device, a motor drive device may be manufactured by stacking a plurality of wiring boards. In this case, it is necessary to position the wiring boards to be stacked. In order to facilitate positioning, it is conceivable to mount the positioning component on the wiring board, but this causes a decrease in the mounting area of the wiring board and an increase in cost.
　本発明は、配線板の位置決めと実装面積の確保の両立が容易なモータ駆動装置を提供することを目的とする。 An object of the present invention is to provide a motor drive device that facilitates both positioning of a wiring board and securing of a mounting area.
　一態様に係るモータ駆動装置は、第１配線板と、前記第１配線板に対して間隔をおいて配置された第２配線板と、前記第１配線板と前記第２配線板とを接続する平板状の導電性部材と、を備える、モータ駆動装置であって、前記導電性部材は、前記第１配線板側に設けられ、前記第１配線板と接続される第１端部と、前記第２配線板と接続される第２端部と、前記第１端部と前記第２端部とを接続する接続部と、を有し、前記第２端部には、前記第２配線板側に向かって突出した突起部が設けられる。 The motor drive device according to one embodiment connects a first wiring board, a second wiring board arranged at intervals with respect to the first wiring board, and the first wiring board and the second wiring board. A motor driving device including a flat plate-shaped conductive member, wherein the conductive member is provided on the first wiring plate side and is connected to the first wiring plate. It has a second end portion connected to the second wiring board and a connection portion connecting the first end portion and the second end portion, and the second end portion has the second wiring. A protrusion protruding toward the plate side is provided.
　本発明によれば、配線板の位置決めと実装面積の確保の両立が容易なモータ駆動装置を提供することができる。 According to the present invention, it is possible to provide a motor drive device that facilitates both positioning of a wiring board and securing of a mounting area.
図１は、組み立て前の実施形態に係るモータ駆動装置用回路を表す分解斜視図である。FIG. 1 is an exploded perspective view showing a circuit for a motor drive device according to an embodiment before assembly. 図２は、組み立て後の実施形態に係るモータ駆動装置用回路を表す斜視図である。FIG. 2 is a perspective view showing a circuit for a motor drive device according to an embodiment after assembly. 図３は、変形例１に係るモータ駆動装置用回路を表す斜視図である。FIG. 3 is a perspective view showing a circuit for a motor drive device according to the first modification. 図４は、変形例２に係るモータ駆動装置用回路を表す斜視図である。FIG. 4 is a perspective view showing a circuit for a motor drive device according to Modification 2. 図５は、突起部と切り欠きの関係を表す拡大斜視図である。FIG. 5 is an enlarged perspective view showing the relationship between the protrusion and the notch. 図６は、変形例３に係るモータ駆動装置用回路を表す斜視図である。FIG. 6 is a perspective view showing a circuit for a motor drive device according to a modification 3. 図７は、突起部と穴の関係を表す拡大斜視図である。FIG. 7 is an enlarged perspective view showing the relationship between the protrusion and the hole. 図８は、変形例４に係るモータ駆動装置用回路を表す斜視図である。FIG. 8 is a perspective view showing a circuit for a motor drive device according to the modified example 4. 図９は、変形例５に係るモータ駆動装置用回路を表す斜視図である。FIG. 9 is a perspective view showing a circuit for a motor drive device according to the modified example 5.
　以下、実施形態に係るモータ駆動装置について、詳細に説明する。実施形態に係るモータ駆動装置は、モータ駆動装置用回路１０を有する。 Hereinafter, the motor drive device according to the embodiment will be described in detail. The motor drive device according to the embodiment has a motor drive device circuit 10.
（実施形態）
　図１および図２はそれぞれ、組み立て前および組み立て後の実施形態に係るモータ駆動装置用回路１０を表す分解斜視図および斜視図である。 (Embodiment)
1 and 2 are an exploded perspective view and a perspective view showing a motor drive device circuit 10 according to an embodiment before and after assembly, respectively.
　モータ駆動装置用回路１０は、ベース１２、配線板１４（第１配線板）、配線板１６（第２配線板）、パワー素子２２、電解コンデンサ２４、およびバスバー４０（４０ａ、４０ｂ：導電性部材）を有する。なお、Ｚ軸方向を重力に逆らう方向（上方向）とする。また、配線板１４、１６は上面視で正方形または矩形状を有する。配線板１６の縁部Ｅｘが延びる方向をＸ軸方向、配線板１６の縁部Ｅｙが延びる方向をＹ軸方向とする。 The circuit 10 for the motor drive device includes a base 12, a wiring board 14 (first wiring board), a wiring board 16 (second wiring board), a power element 22, an electrolytic capacitor 24, and a bus bar 40 (40a, 40b: conductive member). ). The Z-axis direction is the direction (upward) against gravity. Further, the wiring boards 14 and 16 have a square or rectangular shape when viewed from above. The direction in which the edge portion Ex of the wiring board 16 extends is the X-axis direction, and the direction in which the edge portion Ey of the wiring board 16 extends is the Y-axis direction.
　ベース１２は、配線板１４、１６を設置する土台である。ベース１２の上に配線板１４が設けられ、配線板１４のさらに上に配線板１６が設けられる。配線板１４、１６は、回路部品を配置し、配線するための基板であり、プリント基板および樹脂基板が含まれる。ベース１２と配線板１４との間には、ベース１２と配線板１４との間隔を保つための支柱（スペーサ）１２２が設けられている。また、配線板１４には、配線板１４と配線板１６との間隔を保つための支柱（スペーサ）３２が設けられている。支柱１２２、３２は４本設けられ、４本の支柱１２２は、ベース１２の四隅に取り付けられ、配線板１４の四隅を支持する。４本の支柱３２は、配線板１４に取り付けられ、配線板１６の四隅を支持する。 The base 12 is a base on which the wiring boards 14 and 16 are installed. The wiring board 14 is provided on the base 12, and the wiring board 16 is provided on the wiring board 14. The wiring boards 14 and 16 are boards for arranging and wiring circuit parts, and include a printed circuit board and a resin board. A support column (spacer) 122 for maintaining a distance between the base 12 and the wiring board 14 is provided between the base 12 and the wiring board 14. Further, the wiring board 14 is provided with a support column (spacer) 32 for maintaining a distance between the wiring board 14 and the wiring board 16. Four columns 122 and 32 are provided, and the four columns 122 are attached to the four corners of the base 12 and support the four corners of the wiring board 14. The four columns 32 are attached to the wiring board 14 and support the four corners of the wiring board 16.
　支柱３２の上部には、ネジ穴３２２が設けられており、配線板１６には、貫通穴１６２が設けられている。後述のように、バスバー４０を用いて、配線板１４に対して配線板１６が位置決めされる。配線板１６を位置決めして、配線板１４の４本の支柱３２の上に配線板１６を載置する。その後、締結具３４（例えば、ネジ）を支柱３２のネジ穴３２２に螺合させる。これにより、配線板１６を配線板１４に取り付けることができる（組み立て後の図２参照）。 A screw hole 322 is provided in the upper part of the support column 32, and a through hole 162 is provided in the wiring board 16. As will be described later, the wiring board 16 is positioned with respect to the wiring board 14 by using the bus bar 40. The wiring board 16 is positioned, and the wiring board 16 is placed on the four columns 32 of the wiring board 14. After that, the fastener 34 (for example, a screw) is screwed into the screw hole 322 of the support column 32. As a result, the wiring board 16 can be attached to the wiring board 14 (see FIG. 2 after assembly).
　配線板１４、１６は、絶縁板と、この絶縁板の主面上に配置される配線および端子とを有する。なお、配線および端子が、配線板１４、１６の内部にも配置されてもよい。配線板１４、１６の一方にパワー素子２２が設けられ、配線板１４、１６の他方に電解コンデンサ２４が設けられる。ここでは、配線板１４の下面にパワー素子２２が配置され、配線板１６の上面に電解コンデンサ２４が配置されている。ここでは、電解コンデンサ２４の個数は１としているが、複数であっても差し支えない。 The wiring boards 14 and 16 have an insulating plate and wiring and terminals arranged on the main surface of the insulating plate. The wiring and terminals may also be arranged inside the wiring boards 14 and 16. A power element 22 is provided on one of the wiring boards 14 and 16, and an electrolytic capacitor 24 is provided on the other of the wiring boards 14 and 16. Here, the power element 22 is arranged on the lower surface of the wiring board 14, and the electrolytic capacitor 24 is arranged on the upper surface of the wiring board 16. Here, the number of electrolytic capacitors 24 is 1, but a plurality of electrolytic capacitors 24 may be used.
　バスバー４０（４０ａ、４０ｂ）は、導電体（例えば、銅、アルミニウム）から構成され、配線板１４と配線板１６とを電気的に接続する平板状の導電性部材である。バスバー４０は、配線板１４および配線板１６の間で電流を流す電流経路である。後述のように、バスバー４０は、突起部４８を有し、配線板１４に対して配線板１６を位置決めする位置決め部材としても機能する。ここでは、配線板１４と配線板１６の間に、２つのバスバー４０ａおよびバスバー４０ｂが示されているが、３つ以上のバスバー４０が配置されてもよい。 The bus bar 40 (40a, 40b) is a flat plate-shaped conductive member composed of a conductor (for example, copper or aluminum) and electrically connecting the wiring board 14 and the wiring board 16. The bus bar 40 is a current path through which a current flows between the wiring board 14 and the wiring board 16. As will be described later, the bus bar 40 has a protrusion 48 and also functions as a positioning member for positioning the wiring board 16 with respect to the wiring board 14. Here, two bus bars 40a and bus bars 40b are shown between the wiring board 14 and the wiring board 16, but three or more bus bars 40 may be arranged.
　バスバー４０（４０ａ、４０ｂ）は、端部４２、４４、接続部４６、および突起部４８を有する。なお、複数のバスバー４０のいずれかが突起部４８を有すればよく、突起部４８を有しないバスバー４０があってもよい。 The bus bar 40 (40a, 40b) has ends 42, 44, a connection 46, and a protrusion 48. It is sufficient that any one of the plurality of bus bars 40 has a protrusion 48, and there may be a bus bar 40 that does not have the protrusion 48.
　端部４２（第１端部）は、配線板１４の配線板１６側の面（ここでは、配線板１４の上面）に設けられ、配線板１４の配線と接続される。端部４４（第２端部）は、配線板１６の配線板１４側の面（ここでは、配線板１６の下面）と接触し、配線板１６の配線と接続される。端部４２および端部４４は、配線と直接に接続されてもよいが、導電性部材を介して配線と間接的に接続されてもよい。端部４４は、配線板１６の位置決めに用いられる。このため、端部４４は、平面状であり、かつ、組み立て後に配線板１６と接触することが好ましい。なお、端部４２は、これらの要件（平面状、配線板１４との接触）を満たすことを要しないが、満たしても差し支えない。 The end portion 42 (first end portion) is provided on the surface of the wiring board 14 on the wiring plate 16 side (here, the upper surface of the wiring board 14), and is connected to the wiring of the wiring board 14. The end portion 44 (second end portion) is in contact with the surface of the wiring board 16 on the wiring plate 14 side (here, the lower surface of the wiring board 16) and is connected to the wiring of the wiring board 16. The end portion 42 and the end portion 44 may be directly connected to the wiring, or may be indirectly connected to the wiring via a conductive member. The end portion 44 is used for positioning the wiring board 16. Therefore, it is preferable that the end portion 44 is flat and comes into contact with the wiring plate 16 after assembly. The end portion 42 does not need to satisfy these requirements (planar shape, contact with the wiring board 14), but may be satisfied.
　接続部４６は、端部４２と端部４４とを接続する。バスバー４０ａの接続部４６は、屈曲されない平板から構成され、バスバー４０ｂの接続部４６は、屈曲された平板から構成される。バスバー４０ａの接続部４６およびバスバー４０ｂの接続部４６の各々は、端部４２と端部４４とを接続する機能を有する。 The connection portion 46 connects the end portion 42 and the end portion 44. The connecting portion 46 of the bus bar 40a is composed of a flat plate that is not bent, and the connecting portion 46 of the bus bar 40b is composed of a flat plate that is bent. Each of the connecting portion 46 of the bus bar 40a and the connecting portion 46 of the bus bar 40b has a function of connecting the end portion 42 and the end portion 44.
　突起部４８は、配線板１４に対して配線板１６を位置決めするためのものである。突起部４８は、端部４４に設けられ、配線板１６に向かって突出する。ここでは、突起部４８は、端部４４の縁部から上方（Ｚ軸正方向、端部４４に対して略直角）に延伸する平板形状を有する。 The protrusion 48 is for positioning the wiring board 16 with respect to the wiring board 14. The protrusion 48 is provided at the end 44 and projects toward the wiring board 16. Here, the protrusion 48 has a flat plate shape extending upward (in the positive direction of the Z axis, substantially at right angles to the end 44) from the edge of the end 44.
　ここでは、配線板１６は、バスバー４０ａおよびバスバー４０ｂの突起部４８と対応する２つの穴３６を有する。突起部４８を穴３６に挿入すると、配線板１６がバスバー４０に対して位置決めされ、ひいては、配線板１６が配線板１４に対して位置決めされる。 Here, the wiring board 16 has two holes 36 corresponding to the protrusions 48 of the bus bar 40a and the bus bar 40b. When the protrusion 48 is inserted into the hole 36, the wiring board 16 is positioned with respect to the bus bar 40, and thus the wiring board 16 is positioned with respect to the wiring board 14.
　この穴３６は、延伸された形状を有する。突起部４８の幅方向を穴３６の延伸方向と一致させ、突起部４８を穴３６に挿入することで、配線板１６が位置決めされる。このように、延伸方向を有する穴３６と幅方向を有する突起部４８を組み合わせることで、位置決めの精度を向上できる。なお、１の穴３６と１の突起部４８の組み合わせでも配線板１６の位置決めが可能となるが、本実施の形態では、２つの突起部４８を用いることで、より精度の高い位置決めを可能としている。 This hole 36 has an elongated shape. The wiring plate 16 is positioned by aligning the width direction of the protrusion 48 with the extension direction of the hole 36 and inserting the protrusion 48 into the hole 36. In this way, by combining the hole 36 having the stretching direction and the protrusion 48 having the width direction, the positioning accuracy can be improved. The wiring plate 16 can be positioned by the combination of the hole 36 of 1 and the protrusion 48 of 1, but in the present embodiment, by using the two protrusions 48, more accurate positioning is possible. There is.
　以上のように、本実施形態では、バスバー４０（４０ａ、４０ｂ）が突起部４８を有することで、モータ駆動装置の製造時における配線板１４、１６間の位置決めが容易となる。すなわち、バスバー４０の端部４２が配線板１４に接続された状態で、バスバー４０の突起部４８を配線板１６の穴３６に挿入して、位置決めを行う。その後、締結具３４を用いて、配線板１４と配線板１６とが接続される。バスバー４０は、電流経路および位置決めの双方に有用である。これにより、配線板１４に対する配線板１６の位置決めが容易となる。また、配線板１４および配線板１６上での実装面積の確保の両立およびコストの低減が容易となる。また、効率的かつ低コストでの自動組立てが容易となる。例えば、部材の高精度の位置確認が不要となり、比較的簡略な撮像、画像処理を用いた自動組立が可能となる。 As described above, in the present embodiment, since the bus bar 40 (40a, 40b) has the protrusion 48, the positioning between the wiring boards 14 and 16 at the time of manufacturing the motor drive device becomes easy. That is, with the end 42 of the bus bar 40 connected to the wiring board 14, the protrusion 48 of the bus bar 40 is inserted into the hole 36 of the wiring board 16 for positioning. After that, the wiring board 14 and the wiring board 16 are connected by using the fastener 34. The bus bar 40 is useful for both current path and positioning. This facilitates the positioning of the wiring board 16 with respect to the wiring board 14. Further, it becomes easy to secure the mounting area on the wiring board 14 and the wiring board 16 at the same time and to reduce the cost. In addition, efficient and low-cost automatic assembly becomes easy. For example, it is not necessary to confirm the position of the member with high accuracy, and it is possible to perform automatic assembly using relatively simple imaging and image processing.
（変形例１）
　図３は、変形例１に係るモータ駆動装置用回路１０を表す斜視図である。実施形態と同様の箇所は、実施形態と同様の符号を付し、詳細な説明を省略する。 (Modification 1)
FIG. 3 is a perspective view showing the motor drive device circuit 10 according to the first modification. The same parts as those in the embodiment are designated by the same reference numerals as those in the embodiment, and detailed description thereof will be omitted.
　ここでは、バスバー４０ａおよびバスバー４０ｂの突起部４８の各々は、配線板１６の縁部Ｅｙおよび縁部Ｅｘに当接する。このように、穴３６に替えて、縁部Ｅ（Ｅｘ、Ｅｙ）を用いて、配線板１６を位置決めできる。 Here, each of the protruding portion 48 of the bus bar 40a and the bus bar 40b abuts on the edge portion Eye and the edge portion Ex of the wiring board 16. In this way, the wiring board 16 can be positioned by using the edge portion E (Ex, Ey) instead of the hole 36.
（変形例２）
　図４は、変形例２に係るモータ駆動装置用回路１０を表す斜視図である。実施形態と同様の箇所は、実施形態と同様の符号を付し、詳細な説明を省略する。 (Modification 2)
FIG. 4 is a perspective view showing the motor drive device circuit 10 according to the modified example 2. The same parts as those in the embodiment are designated by the same reference numerals as those in the embodiment, and detailed description thereof will be omitted.
　ここでは、配線板１６は、縁部Ｅｙに切り欠き３８を有し、バスバー４０ａの突起部４８は、切り欠き３８に当接している。図５は、突起部４８と切り欠き３８との関係を表す拡大斜視図である。このように、実施形態の穴３６または変形例１の縁部Ｅに替えて、切り欠き３８を用いても、配線板１６の位置決めは可能である。ここでは、穴３６と切り欠き３８とを組み合わせているが、切り欠き３８のみを用いても、配線板１６の位置決めは可能である。例えば、Ｘ軸に沿う縁部Ｅｘにも切り欠き３８を形成し、この切り欠き３８に当接するように、バスバー４０ｂの突起部４８を配置してもよい。 Here, the wiring board 16 has a notch 38 at the edge portion Eye, and the protrusion 48 of the bus bar 40a is in contact with the notch 38. FIG. 5 is an enlarged perspective view showing the relationship between the protrusion 48 and the notch 38. As described above, the wiring board 16 can be positioned by using the notch 38 instead of the hole 36 of the embodiment or the edge E of the modification 1. Here, the hole 36 and the notch 38 are combined, but the wiring board 16 can be positioned by using only the notch 38. For example, a notch 38 may be formed at the edge Ex along the X-axis, and the protrusion 48 of the bus bar 40b may be arranged so as to abut on the notch 38.
　ここで、後述の変形例３と同様に、突起部４８を先細とし、突起部４８を切り欠き３８の中心に誘導することを容易としてもよい。 Here, similarly to the modification 3 described later, the protrusion 48 may be tapered to facilitate guiding the protrusion 48 to the center of the notch 38.
（変形例３）
　図６は、変形例３に係るモータ駆動装置用回路１０を表す斜視図である。実施形態と同様の箇所は、実施形態と同様の符号を付し、詳細な説明を省略する。 (Modification 3)
FIG. 6 is a perspective view showing the motor drive device circuit 10 according to the modified example 3. The same parts as those in the embodiment are designated by the same reference numerals as those in the embodiment, and detailed description thereof will be omitted.
　ここでは、穴３６に挿通される突起部４８は、先細である。図７は、突起部４８と穴３６との関係を表す拡大斜視図である。穴３６に挿通される突起部４８は、その基部から端部にいくにつれて、その幅が狭くなる先細形状を有する。具体的には、突起部４８は、略台形の平板形状を有し、突起部４８の端部の幅Ｌ１は、突起部４８の基部の幅Ｌ２より小さい。穴３６の幅Ｌ０は、突起部４８の端部の幅Ｌ１よりも広いため、突起部４８の端部を穴３６に挿入できる。 Here, the protrusion 48 inserted through the hole 36 is tapered. FIG. 7 is an enlarged perspective view showing the relationship between the protrusion 48 and the hole 36. The protrusion 48 inserted through the hole 36 has a tapered shape whose width becomes narrower from the base to the end. Specifically, the protrusion 48 has a substantially trapezoidal flat plate shape, and the width L1 of the end portion of the protrusion 48 is smaller than the width L2 of the base portion of the protrusion 48. Since the width L0 of the hole 36 is wider than the width L1 of the end portion of the protrusion 48, the end portion of the protrusion 48 can be inserted into the hole 36.
　突起部４８が先細であることから、突起部４８を穴３６の中心に誘導することが容易となる。すなわち、突起部４８の挿入時に、突起部４８が、穴３６の中心に対して、突起部４８の幅方向Ｄ（穴３６の延伸方向）において位置ズレしていた場合でも、突起部４８を穴３６に挿入することで、突起部４８を穴３６の幅方向Ｄの中心に誘導することができる。 Since the protrusion 48 is tapered, it is easy to guide the protrusion 48 to the center of the hole 36. That is, even if the protrusion 48 is displaced with respect to the center of the hole 36 in the width direction D (extension direction of the hole 36) of the protrusion 48 when the protrusion 48 is inserted, the protrusion 48 is formed into a hole. By inserting it into 36, the protrusion 48 can be guided to the center of the hole 36 in the width direction D.
（変形例４）
　図８は、変形例４に係るモータ駆動装置用回路１０を表す斜視図である。実施形態と同様の箇所は、実施形態と同様の符号を付し、詳細な説明を省略する。 (Modification example 4)
FIG. 8 is a perspective view showing the motor drive device circuit 10 according to the modified example 4. The same parts as those in the embodiment are designated by the same reference numerals as those in the embodiment, and detailed description thereof will be omitted.
　ここでは、バスバー４０ａおよびバスバー４０ｂの突起部４８の幅方向Ｄａ、Ｄｂ（穴３６の延伸方向に対応）は、互いに交差する。例えば、幅方向Ｄａ、Ｄｂのなす角度θを略９０°とする（突起部４８の幅方向が直交する）。 Here, the width directions Da and Db (corresponding to the extending direction of the hole 36) of the bus bar 40a and the protrusion 48 of the bus bar 40b intersect each other. For example, the angle θ formed by the width directions Da and Db is set to approximately 90 ° (the width directions of the protrusions 48 are orthogonal to each other).
　これにより、Ｘ軸方向およびＹ軸方向における位置ズレを抑えることができる。仮に、幅方向Ｄａ、Ｄｂが平行の場合、幅方向Ｄａ、Ｄｂに垂直な方向（例えば、Ｘ軸方向）に位置ズレする可能性がある。ここでは、２つの突起部４８に対応する２つの穴３６を用いているが、これに替えて、穴３６、切り欠き３８、縁部Ｅの任意の組み合わせを用いることができる。 This makes it possible to suppress positional deviation in the X-axis direction and the Y-axis direction. If the width directions Da and Db are parallel, the position may be displaced in the direction perpendicular to the width directions Da and Db (for example, the X-axis direction). Here, the two holes 36 corresponding to the two protrusions 48 are used, but instead of this, any combination of the holes 36, the notch 38, and the edge E can be used.
　これに加えて、変形例４では、バスバー４０ａおよびバスバー４０ｂの突起部４８は先細である。このため、突起部４８を穴３６の中心に誘導することが容易となる。 In addition to this, in the modified example 4, the protruding portion 48 of the bus bar 40a and the bus bar 40b is tapered. Therefore, it becomes easy to guide the protrusion 48 to the center of the hole 36.
（変形例５）
　図９は、変形例５に係るモータ駆動装置用回路１０を表す斜視図である。実施形態と同様の箇所は、実施形態と同様の符号を付し、詳細な説明を省略する。 (Modification 5)
FIG. 9 is a perspective view showing the motor drive device circuit 10 according to the modified example 5. The same parts as those in the embodiment are designated by the same reference numerals as those in the embodiment, and detailed description thereof will be omitted.
　ここでは、バスバー４０ａが２つの突起部４８を有し、配線板１６は、２つの穴３６および切り欠き３８を有する。バスバー４０ａの２つの突起部４８の各々は、穴３６および切り欠き３８に挿通される。このように１つのバスバー４０ａが複数の突起部４８を有することで、位置決めの精度をさらに向上できる。ここでは、モータ駆動装置用回路１０はバスバー４０ａおよびバスバー４０ｂを有するが、モータ駆動装置用回路１０はバスバー４０ａおよびバスバー４０ｂの一方のみ（単一のバスバー）を有し、この単一のバスバーのみを用いて位置決めしてもよい。例えば、複数の突起部４８を有するバスバー４０ａを用いて、高精度での位置決めを行える。 Here, the bus bar 40a has two protrusions 48, and the wiring board 16 has two holes 36 and a notch 38. Each of the two protrusions 48 of the bus bar 40a is inserted through the hole 36 and the notch 38. By having one bus bar 40a having a plurality of protrusions 48 in this way, the accuracy of positioning can be further improved. Here, the motor drive circuit 10 has a bus bar 40a and a bus bar 40b, but the motor drive circuit 10 has only one of the bus bar 40a and the bus bar 40b (single bus bar), and only this single bus bar. May be used for positioning. For example, a bus bar 40a having a plurality of protrusions 48 can be used for highly accurate positioning.
（その他の変形例）
　以上の実施形態および変形例１～５の要素は、適宜に組み合わせることができる。すなわち、突起部４８は、穴３６、切り欠き３８、および縁部Ｅのいずれかと対応させて、位置決めに用いることができる。 (Other variants)
The elements of the above embodiments and modifications 1 to 5 can be appropriately combined. That is, the protrusion 48 can be used for positioning in association with any of the hole 36, the notch 38, and the edge E.
　複数の突起部４８を用いると、配線板１６の（１または）複数の穴３６、（１または）複数の切り欠き３８、（１または）複数の縁部Ｅ、およびこれらの組み合わせを用いて、配線板１６を位置決めできる。例えば、穴３６と切り欠き３８との組み合わせを位置決めに利用してもよい。穴３６と縁部Ｅとの組み合わせを位置決めに利用してもよい。切り欠き３８と縁部Ｅとの組み合わせを位置決めに利用してもよい。穴３６と切り欠き３８と縁部Ｅの組み合わせを位置決めに利用してもよい。 With the plurality of protrusions 48, the wiring board 16 may have (1 or) a plurality of holes 36, (1 or) a plurality of notches 38, (1 or) a plurality of edges E, and a combination thereof. The wiring board 16 can be positioned. For example, the combination of the hole 36 and the notch 38 may be used for positioning. The combination of the hole 36 and the edge E may be used for positioning. The combination of the notch 38 and the edge E may be used for positioning. The combination of the hole 36, the notch 38, and the edge E may be used for positioning.
　このことは、変形例５のように１つのバスバー４０が複数の突起部４８を有する場合にも同様に適用できる。すなわち、複数の突起部４８が同一または別のバスバー４０に設けられるかを問わず、複数の突起部４８の各々を、穴３６、切り欠き３８、または縁部Ｅのいずれか１つと適宜に対応させることができる。 This can be similarly applied to the case where one bus bar 40 has a plurality of protrusions 48 as in the modified example 5. That is, regardless of whether the plurality of protrusions 48 are provided on the same or different bus bars 40, each of the plurality of protrusions 48 appropriately corresponds to any one of the hole 36, the notch 38, or the edge E. Can be made to.
　穴３６または切り欠き３８に対応する突起部４８を先細として、穴３６または切り欠き３８の中心に突起部４８を誘導し易くすることができる。また、複数の突起部４８の幅方向Ｄａ、Ｄｂを交差させることによって、位置決めの精度を向上できる。この場合、穴３６、切り欠き３８、または縁部Ｅの任意の組み合わせが可能である。 The protrusion 48 corresponding to the hole 36 or the notch 38 can be tapered to facilitate the guidance of the protrusion 48 to the center of the hole 36 or the notch 38. Further, by crossing the widthwise Da and Db of the plurality of protrusions 48, the positioning accuracy can be improved. In this case, any combination of the hole 36, the notch 38, or the edge E is possible.
　〔実施形態から得られる発明〕
　上記各実施形態から把握しうる発明について、以下に記載する。 [Invention obtained from the embodiment]
The inventions that can be grasped from each of the above embodiments are described below.
〔１〕モータ駆動装置は、第１配線板（配線板１４）と、前記第１配線板に対して間隔をおいて配置された第２配線板（配線板１６）と、前記第１配線板と前記第２配線板とを接続する平板状の導電性部材（バスバー４０、４０ａ、４０ｂ）と、を備える、モータ駆動装置であって、前記導電性部材は、前記第１配線板側に設けられ、前記第１配線板と接続される第１端部（端部４２）と、前記第２配線板と接続される第２端部（端部４４）と、前記第１端部と前記第２端部とを接続する接続部（４６）と、を有し、前記第２端部には、前記第２配線板側に向かって突出した突起部（４８）が設けられる。これにより、導電性部材は、配線板間の電流経路および位置決めの双方に利用可能となり、配線板の位置決めと実装面積の確保の両立が容易となる。 [1] The motor drive device includes a first wiring plate (wiring plate 14), a second wiring plate (wiring plate 16) arranged at intervals from the first wiring plate, and the first wiring plate. A motor drive device including a flat plate-shaped conductive member ( bus bar 40, 40a, 40b) for connecting the second wiring plate and the second wiring plate, the conductive member is provided on the first wiring plate side. The first end portion (end portion 42) connected to the first wiring plate, the second end portion (end portion 44) connected to the second wiring plate, the first end portion, and the first portion. It has a connection portion (46) for connecting the two ends, and the second end is provided with a protrusion (48) protruding toward the second wiring plate side. As a result, the conductive member can be used for both the current path and the positioning between the wiring boards, and it becomes easy to achieve both the positioning of the wiring boards and the securing of the mounting area.
〔２〕前記突起部は、前記第２配線板の縁部（Ｅ、Ｅｘ、Ｅｙ）に当接する。これにより、第２配線板の縁部と導電性部材の突起部とによる位置決めが可能となる。 [2] The protrusion abuts on the edge (E, Ex, Ey) of the second wiring board. This enables positioning by the edge portion of the second wiring board and the protrusion portion of the conductive member.
〔３〕前記第２配線板には、穴（３６）または切り欠き（３８）が形成され、前記突起部は、前記穴または前記切り欠きに挿通される。これにより、第２配線板の穴または切り欠きと導電性部材の突起部とによる位置決めが可能となる。 [3] A hole (36) or a notch (38) is formed in the second wiring board, and the protrusion is inserted into the hole or the notch. This enables positioning by the hole or notch of the second wiring board and the protrusion of the conductive member.
〔４〕前記穴または前記切り欠きに挿通される前記突起部は、その基部から端部にいくにつれて、その幅が狭くなる先細形状を有する。これにより、前記穴または切り欠きの開口部の幅方向において突起部を誘導することができる。 [4] The protrusion inserted into the hole or the notch has a tapered shape whose width becomes narrower from the base to the end. Thereby, the protrusion can be guided in the width direction of the opening of the hole or the notch.
〔５〕前記穴または前記切り欠きの開口部の幅（Ｌ０）は、前記突起部の端部の幅（Ｌ１）よりも広い。これにより、穴または切り欠きの開口部への突起部の挿入が容易となる。 [5] The width (L0) of the opening of the hole or the notch is wider than the width (L1) of the end of the protrusion. This facilitates the insertion of the protrusion into the opening of the hole or notch.
〔６〕前記導電性部材には、少なくとも２つの前記突起部が設けられ、前記２つの突起部の幅方向（Ｄａ、Ｄｂ）は、互いに交差する。これにより、位置決めの精度を向上できる。 [6] The conductive member is provided with at least two of the protrusions, and the width directions (Da, Db) of the two protrusions intersect each other. Thereby, the accuracy of positioning can be improved.
〔７〕前記モータ駆動装置は、前記第１配線板と前記第２配線板とを接続する複数の前記導電性部材を備える。これにより、複数の前記導電性部材を用いて、位置決めの精度を向上できる。 [7] The motor drive device includes a plurality of the conductive members that connect the first wiring board and the second wiring board. Thereby, the accuracy of positioning can be improved by using the plurality of the conductive members.
〔８〕前記第１配線板および前記第２配線板の一方には、パワー素子（２２）が設けられ、前記第１配線板および前記第２配線板の他方には、電解コンデンサ（２４）が設けられる。これにより、パワー素子と電解コンデンサ間の距離、ひいては寄生インダクタンスを低減できる。 [8] A power element (22) is provided on one of the first wiring board and the second wiring board, and an electrolytic capacitor (24) is provided on the other of the first wiring board and the second wiring board. It will be provided. As a result, the distance between the power element and the electrolytic capacitor, and eventually the parasitic inductance, can be reduced.

Claims (8)

  1. 　第１配線板（１４）と、
    　前記第１配線板に対して間隔をおいて配置された第２配線板（１６）と、
    　前記第１配線板と前記第２配線板とを接続する平板状の導電性部材（４０、４０ａ、４０ｂ）と、
    　を備える、モータ駆動装置であって、
    　前記導電性部材は、
    　前記第１配線板側に設けられ、前記第１配線板と接続される第１端部（４２）と、
    　前記第２配線板と接続される第２端部（４４）と、
    　前記第１端部と前記第２端部とを接続する接続部（４６）と、
    　を有し、
    　前記第２端部には、前記第２配線板側に向かって突出した突起部（４８）が設けられる、モータ駆動装置。     The first wiring board (14) and
    A second wiring board (16) arranged at a distance from the first wiring board, and
    A flat plate-shaped conductive member (40, 40a, 40b) connecting the first wiring board and the second wiring board, and
    It is a motor drive device equipped with
    The conductive member is
    A first end portion (42) provided on the first wiring board side and connected to the first wiring board, and
    The second end portion (44) connected to the second wiring board and
    A connecting portion (46) connecting the first end portion and the second end portion,
    Have,
    A motor drive device provided with a protrusion (48) protruding toward the second wiring board side at the second end.
  2. 　請求項１に記載のモータ駆動装置であって、
    　前記突起部は、前記第２配線板の縁部（Ｅ、Ｅｘ、Ｅｙ）に当接する、モータ駆動装置。     The motor drive device according to claim 1.
    The protrusion is a motor drive device that abuts on the edge (E, Ex, Ey) of the second wiring board.
  3. 　請求項１または２に記載のモータ駆動装置であって、
    　前記第２配線板には、穴（３６）または切り欠き（３８）が形成され、
    　前記突起部は、前記穴または前記切り欠きに挿通される、モータ駆動装置。     The motor drive device according to claim 1 or 2.
    A hole (36) or a notch (38) is formed in the second wiring board.
    The protrusion is a motor drive device that is inserted through the hole or the notch.
  4. 　請求項３に記載のモータ駆動装置であって、
    　前記穴または前記切り欠きに挿通される前記突起部は、その基部から端部にいくにつれて、その幅が狭くなる先細形状を有する、モータ駆動装置。     The motor driving device according to claim 3.
    A motor drive device having a tapered shape in which the width of the protrusion inserted into the hole or the notch narrows from the base to the end.
  5. 　請求項４に記載のモータ駆動装置であって、
    　前記穴または前記切り欠きの開口部の幅（Ｌ０）は、前記突起部の端部の幅（Ｌ１）よりも広い、モータ駆動装置。     The motor driving device according to claim 4.
    A motor drive device in which the width (L0) of the opening of the hole or the notch is wider than the width (L1) of the end of the protrusion.
  6. 　請求項４または５に記載のモータ駆動装置であって、
    　前記導電性部材には、少なくとも２つの前記突起部が設けられ、
    　前記２つの突起部の幅方向（Ｄａ、Ｄｂ）は、互いに交差する、モータ駆動装置。     The motor drive device according to claim 4 or 5.
    The conductive member is provided with at least two of the protrusions.
    A motor drive device in which the width directions (Da, Db) of the two protrusions intersect each other.
  7. 　請求項１～６のいずれか１項に記載のモータ駆動装置であって、
    　前記第１配線板と前記第２配線板とを接続する複数の前記導電性部材を備える、モータ駆動装置。     The motor drive device according to any one of claims 1 to 6.
    A motor drive device including a plurality of the conductive members connecting the first wiring board and the second wiring board.
  8. 　請求項１～７のいずれか１項に記載のモータ駆動装置であって、
    　前記第１配線板および前記第２配線板の一方には、パワー素子（２２）が設けられ、
    　前記第１配線板および前記第２配線板の他方には、電解コンデンサ（２４）が設けられる、モータ駆動装置。     The motor drive device according to any one of claims 1 to 7.
    A power element (22) is provided on one of the first wiring board and the second wiring board.
    A motor drive device provided with an electrolytic capacitor (24) on the other side of the first wiring board and the second wiring board.
PCT/JP2021/022429 2020-06-19 2021-06-14 Motor drive device WO2021256407A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60129169U (en) * 1984-02-04 1985-08-30 アルプス電気株式会社 Lead frame for printed wiring boards
JPH10229261A (en) * 1997-02-13 1998-08-25 Sansha Electric Mfg Co Ltd Power semiconductor device
JP2002270988A (en) * 2001-03-14 2002-09-20 Murata Mfg Co Ltd Structure for mounting module substrate
JP2006114851A (en) * 2004-10-18 2006-04-27 Tdk Corp Fitting structure of terminal to circuit board
JP2012200088A (en) * 2011-03-22 2012-10-18 Denso Corp Motor drive device and electrically driven power steering device using the same
JP2016085942A (en) * 2014-10-29 2016-05-19 Ｋｙｂ株式会社 Jumper bus bar and component mounting substrate with the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60129169U (en) * 1984-02-04 1985-08-30 アルプス電気株式会社 Lead frame for printed wiring boards
JPH10229261A (en) * 1997-02-13 1998-08-25 Sansha Electric Mfg Co Ltd Power semiconductor device
JP2002270988A (en) * 2001-03-14 2002-09-20 Murata Mfg Co Ltd Structure for mounting module substrate
JP2006114851A (en) * 2004-10-18 2006-04-27 Tdk Corp Fitting structure of terminal to circuit board
JP2012200088A (en) * 2011-03-22 2012-10-18 Denso Corp Motor drive device and electrically driven power steering device using the same
JP2016085942A (en) * 2014-10-29 2016-05-19 Ｋｙｂ株式会社 Jumper bus bar and component mounting substrate with the same

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