WO2023053479A1 - Réacteur - Google Patents

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Publication number
WO2023053479A1
WO2023053479A1 PCT/JP2022/005620 JP2022005620W WO2023053479A1 WO 2023053479 A1 WO2023053479 A1 WO 2023053479A1 JP 2022005620 W JP2022005620 W JP 2022005620W WO 2023053479 A1 WO2023053479 A1 WO 2023053479A1
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WO
WIPO (PCT)
Prior art keywords
portions
reactor
dimension
parts
fin forming
Prior art date
Application number
PCT/JP2022/005620
Other languages
English (en)
Japanese (ja)
Inventor
雄 佐藤
潤一 高田
健志 清水
清隆 角藤
拓真 近藤
直樹 田中
Original Assignee
三菱重工サーマルシステムズ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱重工サーマルシステムズ株式会社 filed Critical 三菱重工サーマルシステムズ株式会社
Publication of WO2023053479A1 publication Critical patent/WO2023053479A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F37/00—Fixed inductances not covered by group H01F17/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/085—Cooling by ambient air
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
    • H01F27/2455—Magnetic cores made from sheets, e.g. grain-oriented using bent laminations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H01F3/14—Constrictions; Gaps, e.g. air-gaps

Definitions

  • a reactor includes a core formed by laminating a plurality of electromagnetic steel sheets, and a coil made of a wire wound around the core (for example, Patent Document 1 or Patent Document 2 below).
  • the core may be formed by a pair of E-shaped outer parts and an I-shaped central part arranged between the outer parts.
  • Two coils are formed by respectively winding wire rods around the central protrusion of the three protrusions of the outer component.
  • JP 2013-93921 A Chinese Utility Model No. 206194495
  • the present disclosure has been made to solve the above problems, and aims to provide a reactor that can be operated more stably.
  • a reactor according to the present disclosure includes a core made of a plurality of electromagnetic steel sheets laminated in a thickness direction, and a coil made of a wire wound around the core, the electromagnetic steel sheet has a first portion extending in a first direction and a plurality of second portions extending from the first portion in a second direction perpendicular to the first direction and spaced apart in the first direction. a part, a central part connecting the plurality of second parts in the first direction with the plurality of second parts facing each other in the second direction, and a side of the first part opposite to the second part. a plurality of fin-forming portions projecting in the second direction from an edge of the fin-forming portion and spaced apart in the first direction.
  • FIG. 1 is a cross-sectional view showing the configuration of a reactor according to an embodiment of the present disclosure
  • FIG. FIG. 4 is an explanatory diagram showing a shape when punching the electromagnetic steel sheet according to the embodiment of the present disclosure
  • FIG. 5 is an explanatory diagram showing a first modified example of the shape when punching the electromagnetic steel sheet according to the embodiment of the present disclosure
  • FIG. 7 is an explanatory diagram showing a second modified example of the shape when punching the electromagnetic steel sheet according to the embodiment of the present disclosure
  • FIG. Reactor 100 is a component used to generate reactance on an electric circuit. As shown in FIG. 1, the reactor 100 includes a core 1 and two coils (a first coil 51 and a second coil 52).
  • the core 1 is formed by laminating a plurality of plate-shaped electromagnetic steel sheets 90 in the thickness direction.
  • the electromagnetic steel sheet 90 has a pair of outer parts 1a and one central part 1b.
  • the outer component 1a includes a first portion 11 extending in the first direction D1, and three third portions projecting from the first portion 11 in a second direction D2 orthogonal to the first direction D1 and arranged at intervals in the first direction D1. It has two parts 12 and a fin forming part 13 provided on the edge of the first part 11 opposite to the second part 12 .
  • the first portion 11, the second portion 12, and the fin forming portion 13 are integrally formed.
  • the spacing dimension between the second portions 12 in the first direction D1 is the same as each other. It should be noted that the term “same” as used herein means substantially the same, and manufacturing errors and design tolerances are allowed.
  • the second portion 12 located in the center in the first direction D1 has a dimension smaller than that of the other second portions 12 in the second direction D2. This is for forming an air gap between the central second portion 12 and a central component 1b to be described later.
  • the number of second portions 12 is preferably three, but may be two or four or more.
  • a plurality of fin forming portions 13 are arranged at intervals in the first direction D1.
  • the fin forming portion 13 protrudes from the first portion 11 in the second direction D2.
  • the fin forming portions 13 respectively form the fins 14 when the electromagnetic steel sheets 90 are laminated in the thickness direction.
  • the position in the first direction D1 of the fin forming portion 13 in one outer component 1a is different from the position in the first direction D1 of the fin forming portion 13 in the other outer component 1a.
  • the fin forming portions 13 are shaped to engage with each other.
  • the fin forming portions 13 are alternately arranged between the pair of outer parts 1a so as to complement each other.
  • the central part 1b extends in the first direction D1 so as to connect the three second parts 12 in the first direction D1.
  • the dimension of the central part 1b in the first direction D1 is twice the dimension of the second portion 12 in the second direction D2.
  • the dimension of the central component 1b in the second direction D2 is the same as the dimension of the separation between the second portions 12 in the first direction D1.
  • the first coil 51 and the second coil 52 are each formed by winding a wire around the central second portion 12 in the first direction D1 multiple times. That is, this reactor 100 has two independent coils. Various modes that have been proposed so far can be adopted as the method of winding the wire.
  • a pair of the outer component 1a and the central component 1b which are punched into the above-described shape, are laminated in the thickness direction, and then a wire is wound to form the first coil 51 and the second coil. Two coils 52 are formed. After that, the reactor 100 is completed by welding the laminate of the central part 1b and the laminate of the pair of outer parts 1a.
  • a die (blade) for punching the reactor electromagnetic steel sheet 90 has a shape shown in FIG. That is, the pair of outer parts 1a are arranged so that the second parts 12 face each other. Further, as described above, the fin forming portions 13 are arranged so as to engage with the fin forming portions 13 of the other adjacent outer component 1a. Furthermore, at least one of the regions formed between the second portions 12 of the outer component 1a is designated as a region for forming the central component 1b.
  • the fin forming portions 13 are provided in the first portion 11, the plurality of fins 14 are formed by the fin forming portions 13 when a plurality of the electromagnetic steel sheets 90 are laminated. Heat is transferred to the fins 14 and exposed to the outside air, so that the heat generated by the core 1 can be released. This allows the reactor 100 to operate more stably.
  • the second portion 12 located in the center in the first direction D1 has a smaller dimension in the second direction D2 than the other second portions 12.
  • an air gap can be formed between the second portion 12 located in the center and the central component 1b facing it.
  • heat generation tends to accelerate at the base of the second portion 12 located in the center (that is, the connection portion with the first portion 11), but the heat generation can be efficiently released to the outside.
  • the dimension of the central component 1b in the first direction D1 is twice the dimension of the second portion 12 in the second direction D2. Furthermore, the dimension of the central part 1b in the second direction D2 is the same as the spacing dimension between the second portions 12 in the first direction D1.
  • the dimension of the outer component 1a in the second direction D2 is set to twice the projecting length of the second portion 12. As shown in FIG. As a result, when punching the pair of outer parts 1a in a state in which the second parts 12 face each other, the area formed between the second parts 12 can be used as the central part 1b without waste. can be used.
  • the position in the first direction D1 of the fin forming portion 13 of one outer component 1a of the pair of outer components 1a is the first position of the fin forming portion 13 of the other outer component 1a. It is different from the position in the direction D1, and has a shape in which the fin forming portions 13 are engaged with each other when the fin forming portions 13 are opposed to each other from the second direction D2.
  • the fin forming portions 13 are engaged with each other when the outer parts 1a are punched while being continuous in the second direction D2. and yield can be improved.
  • one of the second portions 12 having a small length is arranged in an engaged state, which may cause a wasteful portion during punching. can be reduced.
  • an extra portion X is formed between two adjacent first portions 11 in a state where one second portion 12 is engaged with each other. This surplus portion X can be utilized as the fin forming portion 13 described above. Thereby, the yield can be further improved.
  • the length of the one second portion 12 located on the outside is zero.
  • one second portion 12 having a length of 0 is arranged in a state of facing each other, so that the size of the surplus portion X formed between the two adjacent first portions 11 is reduced to can be maximized. That is, when utilizing the surplus portion X as the fin forming portion 13, the fin forming portion 13 can be maximized.
  • the width of the first portion 11 (that is, the dimension in the second direction D2) is a
  • one of the three second portions 12, one of the outer second portions 12, is the central second portion. It is set to be shorter than the projecting length of the portion 12 by 2 ⁇ a or more.
  • the reactor 100 includes a core 1 made of a plurality of electromagnetic steel sheets 90 laminated in the thickness direction, and coils made of a wire wound around the core 1 (first coil 51, second and two coils 52), wherein the electromagnetic steel sheet 90 includes a first portion 11 extending in the first direction D1, and extending from the first portion 11 in a second direction D2 orthogonal to the first direction D1 and extending in the first direction A pair of outer components 1a having a plurality of second portions 12 arranged at intervals D1, and a state in which the plurality of second portions 12 are opposed from the second direction D2, these second portions 12 in the first direction D1, and from the edge of the first portion 11 opposite to the second portion 12 in the second direction D2 and spaced apart in the first direction D1 and a plurality of fin forming portions 13 arranged in a row.
  • the fin forming portions 13 are provided in the first portion 11, the plurality of fins 14 are formed by the fin forming portions 13 when a plurality of the electromagnetic steel sheets 90 are laminated. Thereby, the heat generated by the core 1 can be released to the outside.
  • the second portion 12 located at the center in the first direction D1 has a dimension in the second direction D2 other than It may be smaller than the second portion 12 .
  • an air gap can be formed between the second portion 12 located in the center and the central component 1b facing it.
  • heat generation tends to accelerate at the base of the second portion 12 located in the center (that is, the connection portion with the first portion 11), but the heat generation can be efficiently released to the outside.
  • the dimension of the central component 1b in the first direction D1 may be twice the dimension of the second portion 12 in the second direction D2.
  • the position in the first direction D1 of the fin forming portion 13 in the outer component 1a on one side of the pair of outer components 1a is the same as the outer side on the other side.
  • the positions of the fin forming portions 13 in the component 1a are different from those in the first direction D1, and the fin forming portions 13 are engaged with each other when the fin forming portions 13 are opposed to each other from the second direction D2. It may be shaped.
  • the fin forming portions 13 are engaged with each other when the outer parts 1a are punched while being continuous in the second direction D2. and yield can be improved.
  • the sum of the width in the second direction D2 of the first portion 11 and the length in the second direction D2 of the remaining second portion 12 may be smaller.
  • one of the second portions 12 of the outer component 1a is arranged in an engaged state, thereby reducing the possibility of producing unnecessary portions during punching. can be reduced. Moreover, by satisfying the dimensional conditions as described above, in a state where one second portion 12 is engaged with each other, an extra portion is formed between two adjacent first portions 11 . This surplus portion can be utilized as the fin forming portion 13 .
  • one of the plurality of second portions located on the outside in the first direction has a length in the second direction of 0. good too.
  • the length of the second portion 12 is 0, that is, it does not exist.
  • the two second portions 12 having a length of 0 so as to face each other, it is possible to reduce the possibility of creating a wasteful portion during the punching process.
  • the size of the surplus portion formed between the two first portions 11 adjacent to each other can be maximized. This makes it possible to maximize the size of the fin forming portion 13 when utilizing the surplus portion as the fin forming portion 13 .

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

La présente invention concerne un réacteur qui est équipé d'un coeur comprenant une pluralité de plaques d'acier électromagnétique empilées dans le sens de l'épaisseur, et d'une bobine comprenant un fil enroulé autour du coeur. Les plaques d'acier électromagnétiques comprennent : une paire de composants externes ayant une première partie s'étendant dans une première direction et une pluralité de secondes parties disposées à intervalles dans la première direction et s'étendant depuis les premières parties dans une seconde direction orthogonale à la première direction ; un composant central faisant face à la pluralité de secondes parties depuis la seconde direction et reliant les secondes parties les unes aux autres dans la première direction ; et une pluralité de sections de formation d'ailettes disposées à intervalles dans la première direction et faisant saillie dans la seconde direction depuis le bord des premières parties sur le côté opposé aux secondes parties.
PCT/JP2022/005620 2021-09-29 2022-02-14 Réacteur WO2023053479A1 (fr)

Applications Claiming Priority (2)

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JP2021159131 2021-09-29
JP2021-159131 2021-09-29

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WO2023053479A1 true WO2023053479A1 (fr) 2023-04-06

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000348949A (ja) * 1999-05-27 2000-12-15 Samsung Electronics Co Ltd 放熱リブを持つ高圧トランスフォーマ
WO2004112064A1 (fr) * 2003-06-10 2004-12-23 Schaffner Emv Ag Noyau magnetique et dispositif presentant des capacites de refroidissement
JP2005045133A (ja) * 2003-07-25 2005-02-17 Tohoku Electric Power Co Inc 電磁機器
JP2007180129A (ja) * 2005-12-27 2007-07-12 Shindengen Electric Mfg Co Ltd トランス
JP2008004754A (ja) * 2006-06-22 2008-01-10 Tohoku Electric Power Co Inc 電磁機器
CN202549596U (zh) * 2011-12-30 2012-11-21 东软飞利浦医疗设备系统有限责任公司 谐振电感与高压变压器磁集成装置
CN109655662A (zh) * 2018-08-23 2019-04-19 刘飞翠 一种由变压器铁芯截面积计算功率的k系数计算方法

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JPS5495862U (fr) * 1977-12-20 1979-07-06
JPS5662306A (en) * 1979-10-29 1981-05-28 Toshiba Corp Manufacturing of laminated steel core and the device
JPS57113209A (en) * 1980-12-29 1982-07-14 Matsushita Electric Ind Co Ltd Transformer
JP2013093921A (ja) 2011-10-24 2013-05-16 Toyota Central R&D Labs Inc ２相コンバータ用リアクトル及び２相コンバータ
CN206194495U (zh) 2016-11-07 2017-05-24 青岛云路新能源科技有限公司 基于永磁预偏磁技术的差共模集成电感
JP7016776B2 (ja) * 2018-08-08 2022-02-07 日立Astemo株式会社 リアクトル
JP2020043293A (ja) * 2018-09-13 2020-03-19 三菱重工サーマルシステムズ株式会社 リアクタ及び室外機
JP7139378B2 (ja) 2020-03-30 2022-09-20 株式会社藤商事 遊技機

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000348949A (ja) * 1999-05-27 2000-12-15 Samsung Electronics Co Ltd 放熱リブを持つ高圧トランスフォーマ
WO2004112064A1 (fr) * 2003-06-10 2004-12-23 Schaffner Emv Ag Noyau magnetique et dispositif presentant des capacites de refroidissement
JP2005045133A (ja) * 2003-07-25 2005-02-17 Tohoku Electric Power Co Inc 電磁機器
JP2007180129A (ja) * 2005-12-27 2007-07-12 Shindengen Electric Mfg Co Ltd トランス
JP2008004754A (ja) * 2006-06-22 2008-01-10 Tohoku Electric Power Co Inc 電磁機器
CN202549596U (zh) * 2011-12-30 2012-11-21 东软飞利浦医疗设备系统有限责任公司 谐振电感与高压变压器磁集成装置
CN109655662A (zh) * 2018-08-23 2019-04-19 刘飞翠 一种由变压器铁芯截面积计算功率的k系数计算方法

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EP4390989A1 (fr) 2024-06-26
JPWO2023054593A1 (fr) 2023-04-06
WO2023054593A1 (fr) 2023-04-06

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