WO2020032132A1 - Power conversion device - Google Patents
Power conversion device Download PDFInfo
- Publication number
- WO2020032132A1 WO2020032132A1 PCT/JP2019/031217 JP2019031217W WO2020032132A1 WO 2020032132 A1 WO2020032132 A1 WO 2020032132A1 JP 2019031217 W JP2019031217 W JP 2019031217W WO 2020032132 A1 WO2020032132 A1 WO 2020032132A1
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- WIPO (PCT)
- Prior art keywords
- fastening portion
- capacitor
- fastening
- capacitor module
- power converter
- Prior art date
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 19
- 239000003990 capacitor Substances 0.000 claims abstract description 109
- 230000017525 heat dissipation Effects 0.000 abstract description 12
- 230000004048 modification Effects 0.000 description 11
- 238000012986 modification Methods 0.000 description 11
- 239000011347 resin Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 238000007789 sealing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004382 potting Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/02—Mountings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
Definitions
- the present disclosure relates to a power conversion device.
- Patent Document 1 discloses a capacitor module in which a capacitor element is housed and electronic components such as a bus bar and a discharge resistor are attached. When such a capacitor module is used in a power conversion device, it is usually used by being fixed in a case together with other electronic components constituting a power conversion circuit.
- the capacitor module disclosed in Patent Document 1 includes heat-generating electronic components such as a capacitor element, a bus bar, and a discharge resistor.
- heat-generating electronic components such as a capacitor element, a bus bar, and a discharge resistor.
- only one fixing portion for fixing to the case is provided at an end of the capacitor module. Therefore, heat is not sufficiently drawn from the capacitor module to the case, so that the heat dissipation of the capacitor module is poor. As a result, the temperature of the capacitor element may be excessively increased with use.
- the present disclosure seeks to provide a power conversion device including a capacitor module with improved heat dissipation.
- One embodiment of the present disclosure includes a plurality of electronic components forming a power conversion circuit, A capacitor module including a capacitor element included in the plurality of electronic components, An apparatus case accommodating the plurality of electronic components and the capacitor module, With The capacitor module is fixed to the device case by a plurality of fastening portions including a first fastening portion and a second fastening portion erected on the inner bottom surface of the device case, At least one of the plurality of electronic components other than the capacitor element is attached to the capacitor module and has a direction orthogonal to a direction in which the first fastening portion and the second fastening portion are arranged.
- the power converter is located between the first fastening portion and the second fastening portion as viewed from a direction parallel to the inner bottom surface of the device case.
- the electronic component mounted on the capacitor module is located between the first fastening portion and the second fastening portion for fixing the capacitor module to the device case.
- the heat generated in the electronic component is easily transmitted to the device case via the first fastening portion and the second fastening portion, and the heat dissipation can be improved.
- FIG. 1 is a conceptual top view of a power conversion device according to the first embodiment.
- FIG. 2 is a perspective conceptual view of the power converter according to the first embodiment.
- FIG. 3 is a conceptual perspective view of the capacitor module according to the first embodiment.
- FIG. 4 is a partially enlarged cross-sectional view taken along the line IV-IV in FIG.
- FIG. 5 is a partially enlarged cross-sectional view taken along the line VV in FIG.
- FIG. 6 is a partially enlarged cross-sectional view taken along the line VI-VI in FIG.
- FIG. 7 is a partially enlarged cross-sectional view corresponding to the position taken along line IV-IV of FIG.
- FIG. 8 is a partially enlarged cross-sectional view corresponding to the position taken along line IV-IV of FIG.
- FIG. 9 is a schematic perspective view of a power conversion device according to Modification 3.
- FIG. 10 is a partially enlarged cross-sectional view corresponding to the position taken along line IV-IV of FIG.
- the power conversion device 1 of the present embodiment includes a plurality of electronic components 10, a capacitor case 20, a capacitor module 2, and a device case 30.
- the plurality of electronic components 10 constitute a power conversion circuit.
- the capacitor module 2 includes a capacitor element 11 included in a plurality of electronic components 10.
- the device case 30 houses the plurality of electronic components 10 and the capacitor module 2.
- the capacitor module 2 is fixed to the device case 30 by a plurality of fastening portions 40 including a first fastening portion 41 and a second fastening portion 42 erected on the inner bottom surface 31 of the device case 30. At least one of the plurality of electronic components 10 other than the capacitor element 11 is attached to the capacitor module 2 and is orthogonal to the direction in which the first fastening portion 41 and the second fastening portion 42 are arranged. And is located between the first fastening portion 41 and the second fastening portion 42 when viewed from a direction parallel to the inner bottom surface 31.
- the plurality of electronic components 10 shown in FIG. 1 constitute a power conversion circuit such as an inverter and a converter.
- the plurality of electronic components 10 include, in addition to the capacitor element 11, a discharge resistor 12, a discharge circuit 13, a capacitor P bus bar 14, a capacitor N bus bar 15, a semiconductor module 16, and a terminal block 17 as other electronic components.
- the direction in which the capacitor elements 11 are arranged is defined as the X direction
- the direction in which the opening surface 23 of the capacitor case 20 described later and the opposite surface are defined as the thickness direction Y
- the X direction and the Y direction are defined. Is defined as a height direction Z.
- the capacitor case 20 is made of resin and has a substantially rectangular parallelepiped shape as a whole. And it has a long shape in the direction in which the capacitor elements 11 are arranged, that is, in the X direction.
- the capacitor case 20 has an opening surface 23 formed on one side surface, and the potting surface of the sealing resin 22 potted on the capacitor case 20 is exposed from the opening surface 23 to form the side surface 21 of the capacitor module 2.
- a discharge resistor 12, a discharge circuit 13, a capacitor P bus bar 14, and a capacitor N bus bar 15 as other electronic components are attached to the side surface 21.
- the discharge circuit 13 includes the entire circuit including a switch (not shown) and the like.
- the capacitor module 2 has a substantially rectangular parallelepiped shape.
- the present invention is not limited to this.
- the capacitor module 2 may have another shape such as a trapezoidal three-dimensional shape in a side view. Good.
- the capacitor case 20 has a concave portion 24 formed in a concave shape on a surface opposite to the opening surface 23, and a first fastening portion 41 located in the concave portion 24 and fastened to the first fastening portion 41. And a fastened portion 25.
- the recess 24 is located between the two capacitor elements 11.
- the first fastened portion 25 is formed of a through hole and fastened to the first fastened portion 41 via a screw 51.
- the recess 24 is formed to extend in the height direction Z.
- the first engaged portion 25 is formed in a plate shape so as to partition the inside of the concave portion 24 in the height direction Z, and the concave portion 24 has a fastening portion arrangement portion that sandwiches the first engaged portion 25 in the height direction Z.
- 241 and a screw mounting portion 242 are formed.
- the fastening part arrangement part 241 is a space area where the first fastening part 41 is arranged.
- the screw attachment part 242 is a space area for inserting a fastening screw. Then, as shown in FIG. 6, the thickness W1 of the screw attachment portion 242 is larger than the thickness W1 of the fastening portion arrangement portion 241.
- a third fastened portion 27 to be fastened via the second member is provided.
- Each of the second fastened portion 26 and the third fastened portion 27 is formed in a rib shape, and has a through hole through which screws 52 and 53 are inserted, respectively.
- the fastening portions 41 to 43 are provided upright on the inner bottom surface 31 of the device case 30.
- the height H1 of the first fastening portion 41 located in the recess 24 of the capacitor module 2 is the highest in the height direction Z of each of the fastening portions 41 to 43, and the height of the second fastening portion 42 is the highest.
- Both the height H2 and the height H3 of the third fastening portion 43 are lower than H1.
- H2 and H3 have the same height.
- H1 is higher than the height H0 at the center position C in the height direction Z of the capacitor module 2, and H2 and H3 are lower than H0.
- the height of H1 to H3 is not particularly limited, but may be, for example, 30 mm to 50 mm.
- the device case 30 is made of metal, but may be made of resin instead.
- the first fastening portion 41 is formed integrally with the device case 30 and is made of metal, and is solid except for a portion into which the screw 51 is inserted. I have.
- the second fastening portion 42 and the third fastening portion 43 are also formed integrally with the device case 30 and made of metal, and are solid except for the portions into which the screws 52 and 53 are inserted. It has become.
- the discharge resistor 12 and the discharge circuit 13 are disposed on the inner bottom surface 31 of the device case 30 in a direction orthogonal to the direction in which the first fastening portion 41 and the second fastening portion 42 are arranged.
- it When viewed from a parallel direction, it has an extending portion 121 extending closer to the first fastening portion 41 than the capacitor element 11.
- the extending portion 121 overlaps the first fastening portion 41 when viewed from the above direction. Further, the extending portion 121 protrudes in the height direction Z.
- the first fastening portion 41 is located at a position closest to the discharge resistor 12 and the discharge circuit 13 as the electronic component 10 among the plurality of fastening portions 40.
- a capacitor P bus bar 14 and a capacitor N bus bar 15 are attached to the side surface 21 of the capacitor module 2.
- the capacitor P bus bar 14 is connected to the positive electrode surface of the capacitor element 11 (not shown) in the sealing resin 22.
- the capacitor N bus bar 15 is connected to the negative electrode surface of the capacitor element 11 (not shown) in the sealing resin 22.
- the two capacitor elements 11 are connected in parallel by the capacitor P bus bar 14 and the capacitor N bus bar 15.
- the capacitor P bus bar 14 and the capacitor N bus bar 15 protrude from the side surface 21 formed by the sealing resin 22 in a state where they are opposed to each other in the Z direction.
- the capacitor P bus bar 14 and the capacitor N bus bar 15 have a plurality of connection terminals 141 and 151 connected to the input terminals of the semiconductor module 16 on the protruding end side.
- the output terminal of the semiconductor module 16 is connected to the terminal block 17 via the output bus bar 171.
- the electronic component 10 attached to the capacitor module 2 includes the first fastening portion 41 and the second fastening portion 42 for fixing the capacitor module 2 to the device case 30. It is located between. Thereby, the heat generated in the electronic component 10 is easily transmitted to the device case 30 via the first fastening portion 41 and the second fastening portion 42, and the heat dissipation can be improved.
- the first fastening portion 41 located closest to the discharge resistor 12 and the discharge circuit 13, which are the electronic components 10 attached to the capacitor module 2.
- the height H1 from the inner bottom surface 31 is the highest among the plurality of fastening portions 40.
- heat generated from the electronic component 10 attached to the capacitor module 2 can be positively released to the outside through the first fastening portion 41, so that heat radiation can be further improved.
- another fastening portion 40 instead of the first fastening portion 41 is located at a position closest to the electronic component 10 attached to the capacitor module 2 among the plurality of fastening portions 40, and the inner bottom surface 31 May be the highest among the plurality of fastening portions 40. In this case, the same operation and effect can be obtained.
- the capacitor element 11 is housed in the capacitor case 20.
- the capacitor case 20 has an opening surface 23 formed on one surface of the capacitor case 20, and a surface opposite to the opening surface 23.
- a concave portion 24 formed in a concave shape is formed in the concave portion 24.
- the thickness W2 of the screw attachment portion 242 is larger than the thickness W1 of the fastening portion arrangement portion 241. Accordingly, the volume of the capacitor case 20 can be maintained large while providing the concave portion 24, so that heat conduction from the electronic component 10, which is a heating element, to the first fastening portion 25 is improved, so that heat dissipation is improved. Can be enhanced.
- the discharge resistor 12 which is the electronic component 10 attached to the capacitor module 2 is in a direction orthogonal to the direction in which the first fastening portion 41 and the second fastening portion 42 are arranged and has an inner bottom surface.
- the discharge resistor 12 is more easily released, and the heat dissipation is improved.
- the extending portion 121 protrudes in the height direction Z of the fastening portions 41 to 43. Thereby, the heat dissipation can be further improved.
- the electronic component 10 attached to the capacitor module 2 forms the discharge resistor 12 and the discharge circuit 13. This can promote the release of heat from the discharge resistor 12 and the discharge circuit 13 that generate a relatively large amount of heat in the electronic component 10, thereby contributing to an improvement in heat dissipation.
- the power conversion device 1 including the capacitor module 2 having improved heat dissipation.
- the height H1 of the first fastening portion 41 is made higher than the height H0 of the center position C in the height direction Z of the capacitor module 2, and the second fastening portion 42
- the height H2 of the third fastening portion 43 and the height H3 of the third fastening portion 43 are set lower than H0.
- the height H1 to H3 may be set higher than H0 as in Modification 1 shown in FIG. Good.
- the first fastened portion 25 is provided at one end in the X direction of the capacitor module 2
- the second fastened portion 26 is provided at the other end in the X direction.
- the first fastening portion 41 is fastened to the first fastened portion 25, and the second fastening portion 42 is fastened to the second fastened portion 26. Good.
- the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. Also in the first and second modifications, the same operation and effect as those of the first embodiment can be obtained.
- a discharge resistor 12, a discharge circuit 13, a capacitor P bus bar 14, and a capacitor N bus bar 15 as other electronic components 10 other than the capacitor element 11 are provided.
- the electronic component is mounted on the side surface 21 which is the potting surface of the capacitor module 2
- other electronic components may be mounted on the side surface of the capacitor module 2 other than the side surface 21.
- the discharge resistor 12 and the discharge circuit 13 which are electronic components other than the capacitor element 11 included in the plurality of electronic components 10 are respectively arranged in the height direction of the capacitor module 2. It may be provided on the upper surface 28 of Z.
- the discharge resistor 12 and the discharge circuit 13 have the extending portion 122 extended so as to be closer to the first fastening portion 41.
- the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
- the discharge resistor 12 and the discharge circuit 13 are arranged in a direction orthogonal to the direction in which the first fastening portion 41 and the second fastening portion 42 are arranged and on the inner bottom surface 31. It is located between the first fastening portion 41 and the second fastening portion 42 when viewed from a parallel direction, and also has the same operation and effect as in the first embodiment in the third modification.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Inverter Devices (AREA)
Abstract
The present invention provides a power conversion device comprising a capacitor module for which heat dissipation is improved. This power conversion device (1) has a plurality of electronic components (10) that configure a power conversion circuit, a capacitor module (2), and a device case (30). The capacitor module (2) includes a capacitor element (11), and is fixed to the device case (30) by a plurality of fastening parts (40) including a first fastening part (41) and a second fastening part (42) erected on an inside bottom surface (31) of the device case (30). Also, at least one of the electronic components (10) other than the capacitor element (11) is attached to the capacitor module (2), and is placed between the first fastening part (41) and the second fastening part (42) seen from the direction parallel to the inside bottom surface (31) which is a direction orthogonal to the alignment direction of the first fastening part (41) and the second fastening part (42).
Description
本出願は2018年8月10日に出願された日本出願番号2018-151645号、及び2019年7月12日に出願された日本出願番号2019-129723号に基づくもので、ここにその記載内容を援用する。
This application is based on Japanese Patent Application No. 2018-151645 filed on August 10, 2018 and Japanese Application No. 2019-129723 filed on July 12, 2019, the contents of which are hereby incorporated by reference. Invite.
本開示は、電力変換装置に関する。
The present disclosure relates to a power conversion device.
電力変換回路を構成する複数の電子部品を有する電力変換装置が様々な用途に用いられている。電力変換装置に使用される電子部品として、特許文献1には、コンデンサ素子が収納されるとともにバスバや放電抵抗などの電子部品が取り付けられたコンデンサモジュールが開示されている。かかるコンデンサモジュールを電力変換装置に使用する場合には、通常、電力変換回路を構成する他の電子部品とともにケース内に固定されて使用される。
(2) A power conversion device having a plurality of electronic components constituting a power conversion circuit is used for various purposes. As an electronic component used in a power converter, Patent Document 1 discloses a capacitor module in which a capacitor element is housed and electronic components such as a bus bar and a discharge resistor are attached. When such a capacitor module is used in a power conversion device, it is usually used by being fixed in a case together with other electronic components constituting a power conversion circuit.
特許文献1に開示のコンデンサモジュールは、コンデンサ素子、バスバ、放電抵抗などの発熱性の電子部品を備える。しかしながら、特許文献1に開示のコンデンサモジュールは、ケースに固定するための固定部がコンデンサモジュールの端部に一つ設けられているに過ぎない。そのため、コンデンサモジュールからケースへの熱引きが十分に行われないことから、コンデンサモジュールの放熱性が悪い。その結果、使用に伴ってコンデンサ素子の温度が過度に上昇する恐れがある。
The capacitor module disclosed in Patent Document 1 includes heat-generating electronic components such as a capacitor element, a bus bar, and a discharge resistor. However, in the capacitor module disclosed in Patent Document 1, only one fixing portion for fixing to the case is provided at an end of the capacitor module. Therefore, heat is not sufficiently drawn from the capacitor module to the case, so that the heat dissipation of the capacitor module is poor. As a result, the temperature of the capacitor element may be excessively increased with use.
本開示は、放熱性が向上されるコンデンサモジュールを備える電力変換装置を提供しようとするものである。
The present disclosure seeks to provide a power conversion device including a capacitor module with improved heat dissipation.
本開示の一態様は、電力変換回路を構成する複数の電子部品と、
上記複数の電子部品に含まれるコンデンサ素子を含むコンデンサモジュールと、
上記複数の電子部品及び上記コンデンサモジュールを収容する装置ケースと、
を備え、
上記コンデンサモジュールは、上記装置ケースの内側底面立設された第1の締結部と第2の締結部とを含む複数の締結部によって上記装置ケースに固定されており、
上記複数の電子部品のうち上記コンデンサ素子以外の少なくとも一つは、上記コンデンサモジュールに取り付けられているとともに、上記第1の締結部と上記第2の締結部との並び方向に直交する方向であって上記装置ケースの上記内側底面に平行な方向から見て上記第1の締結部と上記第2の締結部との間に位置している、電力変換装置にある。 One embodiment of the present disclosure includes a plurality of electronic components forming a power conversion circuit,
A capacitor module including a capacitor element included in the plurality of electronic components,
An apparatus case accommodating the plurality of electronic components and the capacitor module,
With
The capacitor module is fixed to the device case by a plurality of fastening portions including a first fastening portion and a second fastening portion erected on the inner bottom surface of the device case,
At least one of the plurality of electronic components other than the capacitor element is attached to the capacitor module and has a direction orthogonal to a direction in which the first fastening portion and the second fastening portion are arranged. The power converter is located between the first fastening portion and the second fastening portion as viewed from a direction parallel to the inner bottom surface of the device case.
上記複数の電子部品に含まれるコンデンサ素子を含むコンデンサモジュールと、
上記複数の電子部品及び上記コンデンサモジュールを収容する装置ケースと、
を備え、
上記コンデンサモジュールは、上記装置ケースの内側底面立設された第1の締結部と第2の締結部とを含む複数の締結部によって上記装置ケースに固定されており、
上記複数の電子部品のうち上記コンデンサ素子以外の少なくとも一つは、上記コンデンサモジュールに取り付けられているとともに、上記第1の締結部と上記第2の締結部との並び方向に直交する方向であって上記装置ケースの上記内側底面に平行な方向から見て上記第1の締結部と上記第2の締結部との間に位置している、電力変換装置にある。 One embodiment of the present disclosure includes a plurality of electronic components forming a power conversion circuit,
A capacitor module including a capacitor element included in the plurality of electronic components,
An apparatus case accommodating the plurality of electronic components and the capacitor module,
With
The capacitor module is fixed to the device case by a plurality of fastening portions including a first fastening portion and a second fastening portion erected on the inner bottom surface of the device case,
At least one of the plurality of electronic components other than the capacitor element is attached to the capacitor module and has a direction orthogonal to a direction in which the first fastening portion and the second fastening portion are arranged. The power converter is located between the first fastening portion and the second fastening portion as viewed from a direction parallel to the inner bottom surface of the device case.
上記電力変換装置においては、コンデンサモジュールに取り付けられた電子部品は、コンデンサモジュールを装置ケースに固定するための第1の締結部と第2の締結部との間に位置している。これにより、当該電子部品に生じた熱が第1の締結部及び第2の締結部を介して装置ケースに伝播されやすくなっており、放熱性を向上することができる。
In the above power converter, the electronic component mounted on the capacitor module is located between the first fastening portion and the second fastening portion for fixing the capacitor module to the device case. Thereby, the heat generated in the electronic component is easily transmitted to the device case via the first fastening portion and the second fastening portion, and the heat dissipation can be improved.
以上のごとく、本開示によれば、放熱性が向上されるコンデンサモジュールを備える電力変換装置を提供することができる。
As described above, according to the present disclosure, it is possible to provide a power converter including a capacitor module with improved heat dissipation.
なお、特許請求の範囲に記載した括弧内の符号は、後述する実施形態に記載の具体的手段との対応関係を示すものであり、本開示の技術的範囲を限定するものではない。
符号 Incidentally, reference numerals in parentheses described in the claims indicate a correspondence with specific means described in the embodiments described later, and do not limit the technical scope of the present disclosure.
本開示についての上記目的及びその他の目的、特徴や利点は、添付の図面を参照しながら下記の詳細な記述により、より明確になる。その図面は、
図1は、実施形態1における、電力変換装置の上面概念図であり、
図2は、実施形態1における、電力変換装置の斜視概念図であり、
図3は、実施形態1における、コンデンサモジュールの斜視概念図であり、
図4は、図1における、IV-IV線位置断面一部拡大図であり、
図5は、図4における、V-V線位置断面一部拡大図であり、
図6は、図5における、VI-VI線位置断面一部拡大図であり、
図7は、変形形態1における図1のIV-IV線位置相当の断面一部拡大図であり、
図8は、変形形態2における図1のIV-IV線位置相当の断面一部拡大図であり、
図9は、変形形態3における、電力変換装置の斜視概念図であり、
図10は、変形形態3における図1のIV-IV線位置相当の断面一部拡大図である。
The above and other objects, features, and advantages of the present disclosure will become more apparent from the following detailed description with reference to the accompanying drawings. The drawing is
FIG. 1 is a conceptual top view of a power conversion device according to the first embodiment. FIG. 2 is a perspective conceptual view of the power converter according to the first embodiment. FIG. 3 is a conceptual perspective view of the capacitor module according to the first embodiment. FIG. 4 is a partially enlarged cross-sectional view taken along the line IV-IV in FIG. FIG. 5 is a partially enlarged cross-sectional view taken along the line VV in FIG. FIG. 6 is a partially enlarged cross-sectional view taken along the line VI-VI in FIG. FIG. 7 is a partially enlarged cross-sectional view corresponding to the position taken along line IV-IV of FIG. FIG. 8 is a partially enlarged cross-sectional view corresponding to the position taken along line IV-IV of FIG. FIG. 9 is a schematic perspective view of a power conversion device according to Modification 3. FIG. 10 is a partially enlarged cross-sectional view corresponding to the position taken along line IV-IV of FIG.
(実施形態1)
上記電力変換装置の実施形態について、図1~図6を用いて説明する。
図1に示すように、本実施形態の電力変換装置1は、複数の電子部品10、コンデンサケース20、コンデンサモジュール2、装置ケース30を有する。
複数の電子部品10は、電力変換回路を構成している。
コンデンサモジュール2、複数の電子部品10に含まれるコンデンサ素子11を含む。
装置ケース30は複数の電子部品10とコンデンサモジュール2とを収容する。 (Embodiment 1)
An embodiment of the power converter will be described with reference to FIGS.
As shown in FIG. 1, thepower conversion device 1 of the present embodiment includes a plurality of electronic components 10, a capacitor case 20, a capacitor module 2, and a device case 30.
The plurality ofelectronic components 10 constitute a power conversion circuit.
Thecapacitor module 2 includes a capacitor element 11 included in a plurality of electronic components 10.
Thedevice case 30 houses the plurality of electronic components 10 and the capacitor module 2.
上記電力変換装置の実施形態について、図1~図6を用いて説明する。
図1に示すように、本実施形態の電力変換装置1は、複数の電子部品10、コンデンサケース20、コンデンサモジュール2、装置ケース30を有する。
複数の電子部品10は、電力変換回路を構成している。
コンデンサモジュール2、複数の電子部品10に含まれるコンデンサ素子11を含む。
装置ケース30は複数の電子部品10とコンデンサモジュール2とを収容する。 (Embodiment 1)
An embodiment of the power converter will be described with reference to FIGS.
As shown in FIG. 1, the
The plurality of
The
The
コンデンサモジュール2は、装置ケース30の内側底面31に立設された第1の締結部41と第2の締結部42とを含む複数の締結部40によって装置ケース30に固定されている。
そして、複数の電子部品10のうちコンデンサ素子11以外の少なくとも一つは、コンデンサモジュール2に取り付けられているとともに、第1の締結部41と第2の締結部42との並び方向に直交する方向であって内側底面31に平行な方向から見て第1の締結部41と第2の締結部42との間に位置している。 Thecapacitor module 2 is fixed to the device case 30 by a plurality of fastening portions 40 including a first fastening portion 41 and a second fastening portion 42 erected on the inner bottom surface 31 of the device case 30.
At least one of the plurality ofelectronic components 10 other than the capacitor element 11 is attached to the capacitor module 2 and is orthogonal to the direction in which the first fastening portion 41 and the second fastening portion 42 are arranged. And is located between the first fastening portion 41 and the second fastening portion 42 when viewed from a direction parallel to the inner bottom surface 31.
そして、複数の電子部品10のうちコンデンサ素子11以外の少なくとも一つは、コンデンサモジュール2に取り付けられているとともに、第1の締結部41と第2の締結部42との並び方向に直交する方向であって内側底面31に平行な方向から見て第1の締結部41と第2の締結部42との間に位置している。 The
At least one of the plurality of
以下、本実施形態の電力変換装置1について、詳述する。
図1に示す複数の電子部品10は、インバータ、コンバータ等の電力変換回路を構成している。複数の電子部品10は、コンデンサ素子11のほかに、他の電子部品としての放電抵抗12、放電回路13、コンデンサPバスバ14、コンデンサNバスバ15、半導体モジュール16、端子台17を含む。なお、本実施形態では、コンデンサ素子11の並び方向をX方向とし、後述するコンデンサケース20の開口面23とその反対側の面との対向方向を厚さ方向Yとし、X方向とY方向とに直交する方向を高さ方向Zとする。 Hereinafter, thepower converter 1 of the present embodiment will be described in detail.
The plurality ofelectronic components 10 shown in FIG. 1 constitute a power conversion circuit such as an inverter and a converter. The plurality of electronic components 10 include, in addition to the capacitor element 11, a discharge resistor 12, a discharge circuit 13, a capacitor P bus bar 14, a capacitor N bus bar 15, a semiconductor module 16, and a terminal block 17 as other electronic components. In the present embodiment, the direction in which the capacitor elements 11 are arranged is defined as the X direction, the direction in which the opening surface 23 of the capacitor case 20 described later and the opposite surface are defined as the thickness direction Y, and the X direction and the Y direction are defined. Is defined as a height direction Z.
図1に示す複数の電子部品10は、インバータ、コンバータ等の電力変換回路を構成している。複数の電子部品10は、コンデンサ素子11のほかに、他の電子部品としての放電抵抗12、放電回路13、コンデンサPバスバ14、コンデンサNバスバ15、半導体モジュール16、端子台17を含む。なお、本実施形態では、コンデンサ素子11の並び方向をX方向とし、後述するコンデンサケース20の開口面23とその反対側の面との対向方向を厚さ方向Yとし、X方向とY方向とに直交する方向を高さ方向Zとする。 Hereinafter, the
The plurality of
図5に示すように、本実施形態では、コンデンサ素子11は2個備えられ、コンデンサケース20に収納されており、封止樹脂22に封止されてコンデンサモジュール2を形成している。本実施形態では、コンデンサケース20は樹脂製であって、全体形状として略直方体形状を有する。そして、コンデンサ素子11の並び方向、すなわち、X方向に長尺な形状を有する。コンデンサケース20は、一方の側面に開口形成された開口面23を有し、開口面23からコンデンサケース20にポッティングされた封止樹脂22のポッティング面が露出してコンデンサモジュール2の側面21が形成されている。そして、側面21に、他の電子部品としての放電抵抗12、放電回路13、コンデンサPバスバ14、コンデンサNバスバ15が取り付けられている。なお、放電回路13は、図示しないスイッチ等を含む回路全体を含む。なお、本実施形態では図3に示すようにコンデンサモジュール2は略直方体形状であるが、これに限らず、コンデンサモジュール2は例えば側面視形状が台形の立体形状など、他の形状であってもよい。
As shown in FIG. 5, in this embodiment, two capacitor elements 11 are provided, housed in the capacitor case 20, and sealed with the sealing resin 22 to form the capacitor module 2. In the present embodiment, the capacitor case 20 is made of resin and has a substantially rectangular parallelepiped shape as a whole. And it has a long shape in the direction in which the capacitor elements 11 are arranged, that is, in the X direction. The capacitor case 20 has an opening surface 23 formed on one side surface, and the potting surface of the sealing resin 22 potted on the capacitor case 20 is exposed from the opening surface 23 to form the side surface 21 of the capacitor module 2. Have been. A discharge resistor 12, a discharge circuit 13, a capacitor P bus bar 14, and a capacitor N bus bar 15 as other electronic components are attached to the side surface 21. Note that the discharge circuit 13 includes the entire circuit including a switch (not shown) and the like. In this embodiment, as shown in FIG. 3, the capacitor module 2 has a substantially rectangular parallelepiped shape. However, the present invention is not limited to this. For example, the capacitor module 2 may have another shape such as a trapezoidal three-dimensional shape in a side view. Good.
図5に示すように、コンデンサケース20は、開口面23と反対側の面に凹状に形成された凹部24と、凹部24内に位置して第1の締結部41に締結される第1の被締結部25とを有する。凹部24は、2個のコンデンサ素子11の間に位置している。また、第1の被締結部25は貫通孔からなりネジ51を介して第1の締結部41と締結される。
As shown in FIG. 5, the capacitor case 20 has a concave portion 24 formed in a concave shape on a surface opposite to the opening surface 23, and a first fastening portion 41 located in the concave portion 24 and fastened to the first fastening portion 41. And a fastened portion 25. The recess 24 is located between the two capacitor elements 11. The first fastened portion 25 is formed of a through hole and fastened to the first fastened portion 41 via a screw 51.
本実施形態では、図6に示すように、凹部24は高さ方向Zに伸びるように形成されている。第1の被締結部25は凹部24内を高さ方向Zに仕切るように板状に形成されており、凹部24には第1の被締結部25を高さ方向Zに挟む締結部配置部241とネジ取り付け部242とが形成されている。締結部配置部241は第1の締結部41が配置される空間領域となっている。ネジ取り付け部242は締結用のネジを挿入するための空間領域となっている。そして、図6に示すようにネジ取り付け部242の肉厚W1は、締結部配置部241の肉厚W1よりも厚くなっている。
In the present embodiment, as shown in FIG. 6, the recess 24 is formed to extend in the height direction Z. The first engaged portion 25 is formed in a plate shape so as to partition the inside of the concave portion 24 in the height direction Z, and the concave portion 24 has a fastening portion arrangement portion that sandwiches the first engaged portion 25 in the height direction Z. 241 and a screw mounting portion 242 are formed. The fastening part arrangement part 241 is a space area where the first fastening part 41 is arranged. The screw attachment part 242 is a space area for inserting a fastening screw. Then, as shown in FIG. 6, the thickness W1 of the screw attachment portion 242 is larger than the thickness W1 of the fastening portion arrangement portion 241.
図4に示すように、コンデンサケース20の左右端部には、第2の締結部42にネジ52を介して締結される第2の被締結部26と、第3の締結部43にネジ53を介して締結される第3の被締結部27が設けられている。第2の被締結部26及び第3の被締結部27は、いずれもリブ状に形成され、それぞれネジ52、53が挿通される貫通孔を有している。
As shown in FIG. 4, at the left and right ends of the capacitor case 20, a second fastened portion 26 to be fastened to the second fastening portion 42 via the screw 52, and a screw 53 to the third fastening portion 43. A third fastened portion 27 to be fastened via the second member is provided. Each of the second fastened portion 26 and the third fastened portion 27 is formed in a rib shape, and has a through hole through which screws 52 and 53 are inserted, respectively.
図4に示すように、装置ケース30の内側底面31に各締結部41~43が立設されている。そして、各締結部41~43の高さ方向Zにおける高さは、コンデンサモジュール2の凹部24内に位置する第1の締結部41の高さH1が最も高く、第2の締結部42の高さH2と第3の締結部43の高さH3はいずれもH1よりも低くなっている。本実施形態では、H2とH3とは同じ高さとなっている。そして、H1はコンデンサモジュール2の高さ方向Zの中央位置Cの高さH0よりも高くなっており、H2とH3とはH0よりも低くなっている。H1~H3の高さは特に限定されないが、例えば、30mm~50mmとすることができる。なお、本実施形態では、装置ケース30は金属製であるが、これに替えて樹脂製であってもよい。
締結 As shown in FIG. 4, the fastening portions 41 to 43 are provided upright on the inner bottom surface 31 of the device case 30. The height H1 of the first fastening portion 41 located in the recess 24 of the capacitor module 2 is the highest in the height direction Z of each of the fastening portions 41 to 43, and the height of the second fastening portion 42 is the highest. Both the height H2 and the height H3 of the third fastening portion 43 are lower than H1. In the present embodiment, H2 and H3 have the same height. H1 is higher than the height H0 at the center position C in the height direction Z of the capacitor module 2, and H2 and H3 are lower than H0. The height of H1 to H3 is not particularly limited, but may be, for example, 30 mm to 50 mm. In the present embodiment, the device case 30 is made of metal, but may be made of resin instead.
本実施形態では、図6に示すように、第1の締結部41は装置ケース30と一体に形成されて金属製となっており、ネジ51が挿入される部分を除いて中実となっている。なお、図示しないが、第2の締結部42及び第3の締結部43も装置ケース30と一体に形成されて金属製となっており、ネジ52、53が挿入される部分を除いて中実となっている。
In the present embodiment, as shown in FIG. 6, the first fastening portion 41 is formed integrally with the device case 30 and is made of metal, and is solid except for a portion into which the screw 51 is inserted. I have. Although not shown, the second fastening portion 42 and the third fastening portion 43 are also formed integrally with the device case 30 and made of metal, and are solid except for the portions into which the screws 52 and 53 are inserted. It has become.
また、図4に示すように、放電抵抗12及び放電回路13は、第1の締結部41と第2の締結部42との並び方向に直交する方向であって装置ケース30の内側底面31に平行な方向から見て、コンデンサ素子11よりも第1の締結部41に近くなるように延設された延設部121を有する。本実施形態では、延設部121は上記方向から見て第1の締結部41と重なっている。また、延設部121は高さ方向Zに突出している。そして、第1の締結部41は、複数の締結部40のうち、電子部品10である放電抵抗12及び放電回路13に最も近い位置に位置している。
As shown in FIG. 4, the discharge resistor 12 and the discharge circuit 13 are disposed on the inner bottom surface 31 of the device case 30 in a direction orthogonal to the direction in which the first fastening portion 41 and the second fastening portion 42 are arranged. When viewed from a parallel direction, it has an extending portion 121 extending closer to the first fastening portion 41 than the capacitor element 11. In the present embodiment, the extending portion 121 overlaps the first fastening portion 41 when viewed from the above direction. Further, the extending portion 121 protrudes in the height direction Z. The first fastening portion 41 is located at a position closest to the discharge resistor 12 and the discharge circuit 13 as the electronic component 10 among the plurality of fastening portions 40.
図1に示すように、コンデンサモジュール2の側面21にはコンデンサPバスバ14、コンデンサNバスバ15が取り付けられている。コンデンサPバスバ14は、封止樹脂22内で、図示しないコンデンサ素子11の正極電極面に接続されている。同様に、コンデンサNバスバ15は、封止樹脂22内で、図示しないコンデンサ素子11の負極電極面に接続されている。これにより、2個のコンデンサ素子11は、コンデンサPバスバ14とコンデンサNバスバ15によって互いに並列接続された状態にある。
コ ン デ ン サ As shown in FIG. 1, a capacitor P bus bar 14 and a capacitor N bus bar 15 are attached to the side surface 21 of the capacitor module 2. The capacitor P bus bar 14 is connected to the positive electrode surface of the capacitor element 11 (not shown) in the sealing resin 22. Similarly, the capacitor N bus bar 15 is connected to the negative electrode surface of the capacitor element 11 (not shown) in the sealing resin 22. As a result, the two capacitor elements 11 are connected in parallel by the capacitor P bus bar 14 and the capacitor N bus bar 15.
図2に示すように、コンデンサPバスバ14、コンデンサNバスバ15は、互いにZ方向に対向配置された状態で、封止樹脂22により形成された側面21から突出している。コンデンサPバスバ14、コンデンサNバスバ15は突出端側に、半導体モジュール16の入力端子に接続される複数の接続端子141、151を備えている。なお、半導体モジュール16の出力端子は出力バスバ171を介して端子台17に接続されている。
(2) As shown in FIG. 2, the capacitor P bus bar 14 and the capacitor N bus bar 15 protrude from the side surface 21 formed by the sealing resin 22 in a state where they are opposed to each other in the Z direction. The capacitor P bus bar 14 and the capacitor N bus bar 15 have a plurality of connection terminals 141 and 151 connected to the input terminals of the semiconductor module 16 on the protruding end side. The output terminal of the semiconductor module 16 is connected to the terminal block 17 via the output bus bar 171.
次に、本実施形態の電力変換装置1における作用効果について、詳述する。
本実施形態の電力変換装置1によれば、コンデンサモジュール2に取り付けられた電子部品10は、コンデンサモジュール2を装置ケース30に固定するための第1の締結部41と第2の締結部42との間に位置している。これにより、当該電子部品10に生じた熱が第1の締結部41及び第2の締結部42を介して装置ケース30に伝播されやすくなっており、放熱性を向上することができる。 Next, the operation and effect of thepower conversion device 1 of the present embodiment will be described in detail.
According to thepower converter 1 of the present embodiment, the electronic component 10 attached to the capacitor module 2 includes the first fastening portion 41 and the second fastening portion 42 for fixing the capacitor module 2 to the device case 30. It is located between. Thereby, the heat generated in the electronic component 10 is easily transmitted to the device case 30 via the first fastening portion 41 and the second fastening portion 42, and the heat dissipation can be improved.
本実施形態の電力変換装置1によれば、コンデンサモジュール2に取り付けられた電子部品10は、コンデンサモジュール2を装置ケース30に固定するための第1の締結部41と第2の締結部42との間に位置している。これにより、当該電子部品10に生じた熱が第1の締結部41及び第2の締結部42を介して装置ケース30に伝播されやすくなっており、放熱性を向上することができる。 Next, the operation and effect of the
According to the
また、本実施形態では、複数の締結部40の中で、コンデンサモジュール2に取り付けられた電子部品10である放電抵抗12及び放電回路13に最も近い位置に位置している第1の締結部41は、内側底面31からの高さH1が複数の締結部40の中で最も高い。これにより、コンデンサモジュール2に取り付けられた電子部品10から発生される熱を第1の締結部41を介して積極的に外部に放出することができるため、放熱性を一層高めることができる。なお、第1の締結部41に替えて他の締結部40が、複数の締結部40の中で、コンデンサモジュール2に取り付けられた電子部品10に最も近い位置に位置しているとともに内側底面31からの高さが複数の締結部40の中で最も高くてもよい。この場合も同様の作用効果を奏する。
In the present embodiment, among the plurality of fastening portions 40, the first fastening portion 41 located closest to the discharge resistor 12 and the discharge circuit 13, which are the electronic components 10 attached to the capacitor module 2. The height H1 from the inner bottom surface 31 is the highest among the plurality of fastening portions 40. Thereby, heat generated from the electronic component 10 attached to the capacitor module 2 can be positively released to the outside through the first fastening portion 41, so that heat radiation can be further improved. It should be noted that another fastening portion 40 instead of the first fastening portion 41 is located at a position closest to the electronic component 10 attached to the capacitor module 2 among the plurality of fastening portions 40, and the inner bottom surface 31 May be the highest among the plurality of fastening portions 40. In this case, the same operation and effect can be obtained.
また、本実施形態では、コンデンサ素子11はコンデンサケース20に収容されており、コンデンサケース20は、コンデンサケース20の一方の面に開口形成された開口面23と、開口面23と反対側の面に凹状に形成された凹部24とを有し、凹部24内には、第1の締結部41が配置される締結部配置部241と、第1の締結部41に締結される第1の被締結部25と、第1の被締結部25を挟んで締結部配置部241の反対側に締結用のネジ51を取り付けるためのネジ取り付け部242を有する。これにより、第1の締結部41が凹部24内に位置しているため、発熱体である放電抵抗12や放電回路13と第1の締結部41との距離が近くなることから、放熱性を一層向上することができる。
In the present embodiment, the capacitor element 11 is housed in the capacitor case 20. The capacitor case 20 has an opening surface 23 formed on one surface of the capacitor case 20, and a surface opposite to the opening surface 23. A concave portion 24 formed in a concave shape is formed in the concave portion 24. In the concave portion 24, a fastening portion arrangement portion 241 in which the first fastening portion 41 is arranged, and a first member fastened to the first fastening portion 41. A fastening portion 25 and a screw attachment portion 242 for attaching a fastening screw 51 to the opposite side of the fastening portion arrangement portion 241 with the first fastened portion 25 interposed therebetween. Accordingly, since the first fastening portion 41 is located in the concave portion 24, the distance between the first fastening portion 41 and the discharge resistor 12 or the discharge circuit 13, which is a heating element, becomes short, so that heat dissipation is reduced. It can be further improved.
また、本実施形態では、凹部24において、ネジ取り付け部242の肉厚W2は、締結部配置部241の肉厚W1よりも大きい。これにより、凹部24を設けつつ、コンデンサケース20の体積を大きく維持することができるため、発熱体である電子部品10から第1の被締結部25への熱伝導を向上させることで放熱性を高めることができる。
In the present embodiment, in the recess 24, the thickness W2 of the screw attachment portion 242 is larger than the thickness W1 of the fastening portion arrangement portion 241. Accordingly, the volume of the capacitor case 20 can be maintained large while providing the concave portion 24, so that heat conduction from the electronic component 10, which is a heating element, to the first fastening portion 25 is improved, so that heat dissipation is improved. Can be enhanced.
また、本実施形態では、コンデンサモジュール2に取り付けられた電子部品10である放電抵抗12は、第1の締結部41と第2の締結部42との並び方向に直交する方向であって内側底面31に平行な方向から見て、コンデンサ素子11よりも締結部40の少なくとも一つに近くなるように延設された延設部121を有する。これにより、放電抵抗12の熱を一層放出しやすくなるため、放熱性が向上する。
Further, in the present embodiment, the discharge resistor 12, which is the electronic component 10 attached to the capacitor module 2, is in a direction orthogonal to the direction in which the first fastening portion 41 and the second fastening portion 42 are arranged and has an inner bottom surface. When viewed from a direction parallel to 31, there is provided an extending portion 121 extending closer to at least one of the fastening portions 40 than the capacitor element 11. As a result, the heat of the discharge resistor 12 is more easily released, and the heat dissipation is improved.
また、本実施形態では、延設部121は、締結部41~43の高さ方向Zに突出している。これにより、一層放熱性を向上させることができる。
In the present embodiment, the extending portion 121 protrudes in the height direction Z of the fastening portions 41 to 43. Thereby, the heat dissipation can be further improved.
また、本実施形態では、コンデンサモジュール2に取り付けられた電子部品10は、放電抵抗12及び放電回路13を構成している。これにより、電子部品10のなかでも比較的発熱量の多い放電抵抗12及び放電回路13からの熱の放出を促すことができるため、放熱性の向上に寄与する。
In addition, in the present embodiment, the electronic component 10 attached to the capacitor module 2 forms the discharge resistor 12 and the discharge circuit 13. This can promote the release of heat from the discharge resistor 12 and the discharge circuit 13 that generate a relatively large amount of heat in the electronic component 10, thereby contributing to an improvement in heat dissipation.
以上のごとく、本実施形態によれば、放熱性が向上されるコンデンサモジュール2を備える電力変換装置1を提供することができる。
As described above, according to the present embodiment, it is possible to provide the power conversion device 1 including the capacitor module 2 having improved heat dissipation.
本実施形態では、図4に示すように、第1の締結部41の高さH1をコンデンサモジュール2の高さ方向Zの中央位置Cの高さH0よりも高くし、第2の締結部42の高さH2と第3の締結部43の高さH3をH0よりも低くしたが、これに替えて、図7に示す変形形態1のように、H1~H3をH0よりも高くしてもよい。また、図8に示す変形形態2のように、第1の被締結部25をコンデンサモジュール2のX方向の一方の端部に設け、第2の被締結部26をX方向の他方の端部に設け、当該第1の被締結部25に第1の締結部41が締結されるようにするとともに、当該第2の被締結部26に第2の締結部42が締結されるようにしてもよい。なお、いずれの変形形態1、2においても、実施形態1と同等の構成には同一の符号を付してその説明を省略する。当該変形形態1、2においても上記実施形態1の場合と同等の作用効果を奏する。
In the present embodiment, as shown in FIG. 4, the height H1 of the first fastening portion 41 is made higher than the height H0 of the center position C in the height direction Z of the capacitor module 2, and the second fastening portion 42 The height H2 of the third fastening portion 43 and the height H3 of the third fastening portion 43 are set lower than H0. Alternatively, the height H1 to H3 may be set higher than H0 as in Modification 1 shown in FIG. Good. Also, as in Modification 2 shown in FIG. 8, the first fastened portion 25 is provided at one end in the X direction of the capacitor module 2, and the second fastened portion 26 is provided at the other end in the X direction. The first fastening portion 41 is fastened to the first fastened portion 25, and the second fastening portion 42 is fastened to the second fastened portion 26. Good. In each of the first and second modifications, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. Also in the first and second modifications, the same operation and effect as those of the first embodiment can be obtained.
また、本実施形態では、図2に示すように、複数の電子部品10においてコンデンサ素子11以外の他の電子部品10としての放電抵抗12、放電回路13、コンデンサPバスバ14及びコンデンサNバスバ15が、コンデンサモジュール2のポッティング面である側面21に取り付けられていることとしたが、他の電子部品は側面21以外のコンデンサモジュール2の側面に取り付けられていてもよい。例えば、図9、図10に示す変形形態3のように、複数の電子部品10に含まれるコンデンサ素子11以外の電子部品である放電抵抗12及び放電回路13が、それぞれコンデンサモジュール2の高さ方向Zの上側の面28に設けられていてもよい。そして、変形形態3では、放電抵抗12及び放電回路13は、第1の締結部41に近くなるように延設された延設部122を有する。なお、変形形態3においても、実施形態1と同等の構成には同一の符号を付してその説明を省略する。
In the present embodiment, as shown in FIG. 2, in the plurality of electronic components 10, a discharge resistor 12, a discharge circuit 13, a capacitor P bus bar 14, and a capacitor N bus bar 15 as other electronic components 10 other than the capacitor element 11 are provided. Although the electronic component is mounted on the side surface 21 which is the potting surface of the capacitor module 2, other electronic components may be mounted on the side surface of the capacitor module 2 other than the side surface 21. For example, as in Modification 3 shown in FIGS. 9 and 10, the discharge resistor 12 and the discharge circuit 13 which are electronic components other than the capacitor element 11 included in the plurality of electronic components 10 are respectively arranged in the height direction of the capacitor module 2. It may be provided on the upper surface 28 of Z. In the third modification, the discharge resistor 12 and the discharge circuit 13 have the extending portion 122 extended so as to be closer to the first fastening portion 41. In the third modification, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
当該変形形態3では、図10に示すように、放電抵抗12及び放電回路13は、第1の締結部41と第2の締結部42との並び方向に直交する方向であって内側底面31に平行な方向から見て第1の締結部41と第2の締結部42との間に位置しており、変形形態3においても上記実施形態1の場合と同等の作用効果を奏する。
In the third modification, as shown in FIG. 10, the discharge resistor 12 and the discharge circuit 13 are arranged in a direction orthogonal to the direction in which the first fastening portion 41 and the second fastening portion 42 are arranged and on the inner bottom surface 31. It is located between the first fastening portion 41 and the second fastening portion 42 when viewed from a parallel direction, and also has the same operation and effect as in the first embodiment in the third modification.
本開示は、実施形態に準拠して記述されたが、本開示は当該実施形態や構造に限定されるものではないと理解される。本開示は、様々な変形形態や均等範囲内の変形をも包含する。加えて、様々な組み合わせや形態、さらには、それらに一要素のみ、それ以上、あるいはそれ以下、を含む他の組み合わせや形態をも、本開示の範疇や思想範囲に入るものである。
Although the present disclosure has been described based on the embodiment, it is understood that the present disclosure is not limited to the embodiment and the structure. The present disclosure also encompasses various modifications and variations within an equivalent range. In addition, various combinations and forms, and other combinations and forms including only one element, more or less, are also included in the scope and spirit of the present disclosure.
Claims (7)
- 電力変換回路を構成する複数の電子部品(10)と、
上記複数の電子部品に含まれるコンデンサ素子(11)を含むコンデンサモジュール(2)と、
上記複数の電子部品及び上記コンデンサモジュールを収容する装置ケース(30)と、
を備え、
上記コンデンサモジュールは、上記装置ケースの内側底面(31)に立設された第1の締結部(41)と第2の締結部(42)とを含む複数の締結部(40)によって上記装置ケースに固定されており、
上記複数の電子部品のうち上記コンデンサ素子以外の少なくとも一つは、上記コンデンサモジュールに取り付けられているとともに、上記第1の締結部と上記第2の締結部との並び方向に直交する方向であって上記装置ケースの上記内側底面に平行な方向から見て上記第1の締結部と上記第2の締結部との間に位置している、電力変換装置(1)。 A plurality of electronic components (10) constituting a power conversion circuit;
A capacitor module (2) including a capacitor element (11) included in the plurality of electronic components;
An apparatus case (30) that houses the plurality of electronic components and the capacitor module;
With
The capacitor module is provided with a plurality of fastening portions (40) including a first fastening portion (41) and a second fastening portion (42) erected on an inner bottom surface (31) of the device case. Is fixed to
At least one of the plurality of electronic components other than the capacitor element is attached to the capacitor module and has a direction orthogonal to a direction in which the first fastening portion and the second fastening portion are arranged. A power converter (1) located between the first fastening portion and the second fastening portion as viewed from a direction parallel to the inner bottom surface of the device case. - 上記複数の締結部の中で上記コンデンサモジュールに取り付けられた上記電子部品に最も近い位置に位置している締結部は、上記内側底面からの高さが上記複数の締結部の中で最も高い、請求項1に記載の電力変換装置。 Among the plurality of fastening portions, the fastening portion located closest to the electronic component attached to the capacitor module has the highest height from the inner bottom surface among the plurality of fastening portions, The power converter according to claim 1.
- 上記コンデンサ素子はコンデンサケース(20)に収容されており、
該コンデンサケースは、該コンデンサケースの一方の面に開口形成された開口面(23)と、該開口面と反対側の面に凹状に形成された凹部(24)と、を有し、
該凹部内には、上記第1の締結部が配置される締結部配置部(241)と、上記第1の締結部に締結される第1の被締結部(25)と、該第1の被締結部を挟んで上記締結部配置部の反対側に締結用のネジを取り付けるためのネジ取り付け部(242)を有する、請求項1又は2に記載の電力変換装置。 The capacitor element is housed in a capacitor case (20),
The capacitor case has an opening surface (23) formed on one surface of the capacitor case, and a concave portion (24) formed in a concave shape on a surface opposite to the opening surface,
In the recess, a fastening portion arrangement portion (241) in which the first fastening portion is arranged, a first fastened portion (25) fastened to the first fastening portion, and a first fastening portion (25). 3. The power converter according to claim 1, further comprising: a screw attachment portion for attaching a fastening screw to a side opposite to the fastening portion arrangement portion with the fastening portion interposed therebetween. - 上記凹部において、上記ネジ取り付け部の肉厚は、上記締結部配置部の肉厚よりも大きい、請求項3に記載の電力変換装置。 4. The power converter according to claim 3, wherein, in the recess, a thickness of the screw attachment portion is larger than a thickness of the fastening portion arrangement portion.
- 上記コンデンサモジュールに取り付けられた上記電子部品は、上記第1の締結部と上記第2の締結部との並び方向に直交する方向であって上記内側底面に平行な方向から見て、上記コンデンサ素子よりも上記締結部の少なくとも一つに近くなるように延設された延設部を有する、請求項1~4のいずれか一項に記載の電力変換装置。 The electronic component attached to the capacitor module may be configured such that the capacitor element is viewed from a direction orthogonal to a direction in which the first fastening portion and the second fastening portion are arranged and parallel to the inner bottom surface. The power converter according to any one of claims 1 to 4, further comprising an extension portion extending so as to be closer to at least one of the fastening portions.
- 上記延設部は、上記締結部の高さ方向に突出している、請求項5に記載の電力変換装置。 The power converter according to claim 5, wherein the extension portion protrudes in a height direction of the fastening portion.
- 上記コンデンサモジュールに取り付けられた上記電子部品は、放電抵抗(12)及び/又は放電回路(13)を構成している、請求項1~6のいずれか一項に記載の電力変換装置。 The power converter according to any one of claims 1 to 6, wherein the electronic component mounted on the capacitor module forms a discharge resistor (12) and / or a discharge circuit (13).
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