WO2018056049A1 - リアクトル、及びリアクトル用磁性コア - Google Patents

リアクトル、及びリアクトル用磁性コア Download PDF

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Publication number
WO2018056049A1
WO2018056049A1 PCT/JP2017/031942 JP2017031942W WO2018056049A1 WO 2018056049 A1 WO2018056049 A1 WO 2018056049A1 JP 2017031942 W JP2017031942 W JP 2017031942W WO 2018056049 A1 WO2018056049 A1 WO 2018056049A1
Authority
WO
WIPO (PCT)
Prior art keywords
winding
leg
reactor
portions
magnetic core
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2017/031942
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
和宏 稲葉
暁光 鄭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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 Sumitomo Wiring Systems Ltd, AutoNetworks Technologies Ltd, Sumitomo Electric Industries Ltd filed Critical Sumitomo Wiring Systems Ltd
Priority to US16/335,100 priority Critical patent/US11417455B2/en
Priority to CN201780057647.XA priority patent/CN109716459B/zh
Publication of WO2018056049A1 publication Critical patent/WO2018056049A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H01F27/255—Magnetic cores made from particles
    • 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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2823—Wires
    • 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
    • H01F27/24—Magnetic cores
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H01F27/263—Fastening parts of the core together

Definitions

  • the present invention relates to a reactor and a magnetic core for a reactor.
  • This application claims priority based on the Japanese application “Japanese Patent Application No. 2016-184616” dated September 21, 2016, and incorporates all the contents described in the above Japanese application.
  • FIG. 1 is a schematic exploded perspective view showing a reactor of Embodiment 1.
  • FIG. 2 is a schematic perspective view which shows the reactor of Embodiment 2.
  • thermoplastic resins such as thermoplastic resins and thermosetting resins.
  • thermoplastic resin examples include polyphenylene sulfide (PPS) resin, polytetrafluoroethylene (PTFE) resin, liquid crystal polymer (LCP), polyamide (PA) resin such as nylon 6 and nylon 66, polybutylene terephthalate (PBT) resin, and acrylonitrile. -Butadiene styrene (ABS) resin etc. are mentioned.
  • thermosetting resin include unsaturated polyester resins, epoxy resins, urethane resins, and silicone resins.
  • the insulating resin can contain nonmagnetic and nonmetallic powders such as alumina and silica. In this case, heat dissipation and electrical insulation can be improved.
  • the reactor 1A according to the first embodiment includes various in-vehicle converters (typically DC-DC converters) and air conditioner converters mounted on vehicles such as hybrid vehicles, plug-in hybrid vehicles, electric vehicles, and fuel cell vehicles. It can be used as a component of power converters and converters.
  • the reactor 1A of the first embodiment can be suitably used when a large inductance is required, the number of turns is relatively large, and a reduction in height is desired.
  • the magnetic core 3 of the embodiment can be used as a component such as the reactor 1A.
  • the reactor 1A of the first embodiment is a forward magnetic flux coil divided into the winding portions 2a and 2b even if the total number of turns of the coil 2A is relatively large, the axial length of the coil 2A is the same as the number of turns. Can be shorter than one coil. If the reactor 1A provided with such a forward magnetic flux coil and the magnetic core 3 having a specific shape is arranged vertically, the installation height can be lowered. From this point, reactor 1A of Embodiment 1 is small. If the amount of protrusion of the coil 2A from the magnetic core 3 is reduced by bending the connecting portion 2jA of the coil 2A as described above, the installation height of the reactor 1A can be further reduced.
  • the magnetic core 3 for reactor of embodiment is provided with the said forward magnetic flux coil, for example, and if it uses for the reactor 1A made into a vertical installation form, it will contribute to low profile.
  • the reactor 1A of the first embodiment since the reactor 1A of the first embodiment includes the magnetic core 3 having the central leg portion 31 in addition to the inner leg portions 3a and 3b and the outer leg portions 32 and 33, the magnetic flux from each of the winding portions 2a and 2b is received. It is difficult to leak out of the magnetic core 3. Therefore, the reactor 1A of the first embodiment has a low loss. For example, when the magnetic core 3 for a reactor according to the embodiment is used for a reactor 1A including the above-described forward magnetic flux coil, a leakage magnetic flux can be reduced, which contributes to a reduction in loss.
  • the magnetic core 3 Since the magnetic core 3 has the winding portions 2a and 2b, the coil 2A and the magnetic core 3 can be easily positioned, and the magnetic core 3 is a set of a set of divided core pieces 3 ⁇ and 3 ⁇ . Since it is a thing, the coil 2A and the magnetic core 3 can be assembled
  • the magnetic core 3 Since the magnetic core 3 is an assembly of split core pieces 3 ⁇ and 3 ⁇ having the same shape, the split core pieces 3 ⁇ and 3 ⁇ are symmetrical and simple in shape. Excellent.
  • the magnetic core 3 includes the notch 38, the magnetic core 3 can be reduced in weight, and thus the reactor 1A can be reduced in weight. In addition, since the formation part of the notch part 38 is a part which the magnetic flux from winding part 2a, 2b does not pass so much, even if it removes a part of magnetic core 3, a predetermined magnetic path area is securable.
  • the coil 2C provided in the reactor 1C of the third embodiment is different from the above-described coil 2A in that the connection portion 2jC does not protrude from the magnetic core 3.
  • the connecting portion 2jC in this example has a portion bent in an S shape so as to extend from the lower end surface of one winding portion 2a to the upper end surface of the other winding portion 2b.
  • the height of the connecting portion 2jC the winding portion 2a substantially equal to the height H 2 of 2b.
  • the reverse magnetic flux coil is configured by two windings 2wa and 2wb as in the second embodiment, the winding direction of each winding part 2a and 2b is the same, and the direction of the magnetic flux penetrating each winding part 2a and 2b is reversed.
  • the other end of one of the windings may be folded so that the other ends are joined.
  • various known reverse magnetic flux coils can be applied.
  • the reactor of the fourth embodiment including the reverse magnetic flux coil includes the magnetic core 3 having the central leg portion 31 in addition to the inner leg portions 3a and 3b and the outer leg portions 32 and 33, and thus each winding portion 2a and 2b. Can be caused to flow to the central leg 31. For this reason, even if the operating current value increases, magnetic flux saturation hardly occurs and inductance does not easily decrease.
  • a sensor for measuring a physical quantity of the reactor such as a temperature sensor, a current sensor, a voltage sensor, and a magnetic flux sensor is provided.
  • a heat radiating plate is provided at the exposed portions of the winding portions 2a and 2b.
  • an insulating interposed member such as a bobbin is provided.
  • a heat fusion resin part (not shown) for joining adjacent turns constituting the winding parts 2a and 2b is provided.
  • a case (for example, made of a metal such as aluminum or an aluminum alloy) that houses an assembly including the coil 2A and the like and the magnetic core 3 is provided. Further, a heat dissipation layer is provided between the assembly and the inner bottom surface of the case. Specific materials for the heat dissipation layer include those containing a filler (nonmagnetic and nonmetal powder such as alumina) and a resin (may be an adhesive) having excellent heat dissipation.
  • the present invention is not limited to these exemplifications, but is defined by the scope of the claims, and is intended to include all modifications within the scope and meaning equivalent to the scope of the claims.
  • it can be set in a horizontal orientation.
  • it can be set as the form which uses the exposed location of winding part 2a, 2b as an installation surface, the form which uses one outer leg part as an installation surface, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
PCT/JP2017/031942 2016-09-21 2017-09-05 リアクトル、及びリアクトル用磁性コア Ceased WO2018056049A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US16/335,100 US11417455B2 (en) 2016-09-21 2017-09-05 Reactor and magnetic core for reactor
CN201780057647.XA CN109716459B (zh) 2016-09-21 2017-09-05 电抗器、及电抗器用磁芯

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-184616 2016-09-21
JP2016184616A JP6635306B2 (ja) 2016-09-21 2016-09-21 リアクトル、及びリアクトル用磁性コア

Publications (1)

Publication Number Publication Date
WO2018056049A1 true WO2018056049A1 (ja) 2018-03-29

Family

ID=61690912

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/031942 Ceased WO2018056049A1 (ja) 2016-09-21 2017-09-05 リアクトル、及びリアクトル用磁性コア

Country Status (4)

Country Link
US (1) US11417455B2 (enExample)
JP (1) JP6635306B2 (enExample)
CN (1) CN109716459B (enExample)
WO (1) WO2018056049A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3836173A4 (en) * 2018-08-06 2022-05-18 Kyosan Electric Mfg. Co., Ltd. REACTOR

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7117905B2 (ja) * 2018-06-14 2022-08-15 株式会社タムラ製作所 リアクトル
JP2020053625A (ja) * 2018-09-28 2020-04-02 株式会社オートネットワーク技術研究所 コイル装置及び電気接続箱
JP7367584B2 (ja) * 2020-03-27 2023-10-24 株式会社オートネットワーク技術研究所 リアクトル、コンバータ、及び電力変換装置
JP7771762B2 (ja) * 2022-01-12 2025-11-18 株式会社村田製作所 リアクトル

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JPH08107023A (ja) * 1994-10-03 1996-04-23 Nemic Lambda Kk インダクタンス素子
JP2001093737A (ja) * 1999-09-24 2001-04-06 Matsushita Electric Ind Co Ltd チョークコイル

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JPH07263262A (ja) * 1994-03-25 1995-10-13 Sony Corp 複合型交流リアクトル
JPH08107023A (ja) * 1994-10-03 1996-04-23 Nemic Lambda Kk インダクタンス素子
JP2001093737A (ja) * 1999-09-24 2001-04-06 Matsushita Electric Ind Co Ltd チョークコイル

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3836173A4 (en) * 2018-08-06 2022-05-18 Kyosan Electric Mfg. Co., Ltd. REACTOR
US12020840B2 (en) 2018-08-06 2024-06-25 Kyosan Electric Mfg. Co., Ltd. Reactor

Also Published As

Publication number Publication date
JP2018049948A (ja) 2018-03-29
CN109716459B (zh) 2020-12-01
JP6635306B2 (ja) 2020-01-22
CN109716459A (zh) 2019-05-03
US11417455B2 (en) 2022-08-16
US20190237237A1 (en) 2019-08-01

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