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5. 发明专利

JP4650755B1 Reactor 有权
公开(公告)号：JP4650755B1
公开(公告)日：2011-03-16
申请号：JP2010156872
申请日：2010-07-09
申请人：住友電気工業株式会社
发明人：浩平吉川 , 伸一郎山本
IPC分类号： H01F37/00 , H01F27/24 , H01F27/255
CPC分类号： H01F37/00 , H01F27/022
摘要：【課題】コアとコイルとの間に樹脂を十分充填しやすくでき、リアクトル製造時のコアの取り扱いが容易なリアクトルを提供する。
【解決手段】巻線を螺旋状に巻回した一対のコイル素子10A,10Bを互いに並列状態で連結したコイル10と、両コイル素子10A,10Bに嵌め込まれて環状のコア20の一部を構成する内側コア部22と、各コイル素子10A,10Bから露出して内側コア部22同士を連結することで環状のコア20の残部を形成する露出コア部24とを備えるリアクトルである。このリアクトルは、コイル10とコア20との組立体1Aの少なくとも一部を覆う外側樹脂部を備える。露出コア部24のうち、コイルの端面に対向する内端面24fと、この内端面24fにつながる隣接面(側面24s)との接合箇所に切欠角部24gを備えることで、コイル10とコア20との間に樹脂を充填し易く、かつハンドリングの際欠けなどを防止できる。
【選択図】図3

6. 发明专利

JP5370558B2 Reactor, a reactor for the bobbin, and converter 有权
公开(公告)号：JP5370558B2
公开(公告)日：2013-12-18
申请号：JP2012207643
申请日：2012-09-20
申请人：住友電気工業株式会社
发明人：肇川口 , 雅幸加藤 , 卓司神頭 , 睦伊藤 , 伸一郎山本 , 和彦二井
IPC分类号： H01F37/00
摘要： PROBLEM TO BE SOLVED: To provide a reactor capable of reducing size in a coil axial direction, and to provide a reactor bobbin which is suitable for structuring such a reactor. SOLUTION: A reactor comprises: a coil formed by spirally coiling wire to be wound; a core which is fitted in the coil to be formed in an annular shape; and a frame-shaped bobbin 20F in which the core is fitted and which is brought into contact with both ends of the coil. A contact surface in the frame-shaped bobbin 20F for the coil comprises an inclined surface corresponding to a form of a coil end composed of the wire. With this constitution, the frame-shaped bobbin 20F can be brought into surface contact with the coil end surface. Consequently, no dead space is formed between the contact surface of the frame-shaped bobbin 20F and the coil end surface, and size of the reactor in a coil axial direction can be reduced. COPYRIGHT: (C)2013,JPO&INPIT

7. 发明专利

JP5341306B2 Reactor 有权
公开(公告)号：JP5341306B2
公开(公告)日：2013-11-13
申请号：JP2006296397
申请日：2006-10-31
申请人：住友電気工業株式会社
发明人：伸一郎山本
IPC分类号： H01F37/00 , H01F27/24 , H01F27/255
摘要： PROBLEM TO BE SOLVED: To provide a reactor which can be made into a desired inductance without having any gap. SOLUTION: The reactor 1 is equipped with: a core portion 10; and a coil 20 arranged outside the core portion 10. There is formed a closed magnetic circuit passing through the core portion 10 by an excitation of the coil 20. In this reactor 1, the core portion 10 is substantially constituted by a material whose relative magnetic permeability is 5 to 50. A matter of noise and a matter of leakage flux accompanied with an existence of the gap can be solved by losing the gap and by substantially constituting the core portion 10 with a low magnetic permeability material. COPYRIGHT: (C)2008,JPO&INPIT

8. 发明专利

JP5322041B2 Reactor, and the converter 有权
公开(公告)号：JP5322041B2
公开(公告)日：2013-10-23
申请号：JP2012108147
申请日：2012-05-10
申请人：住友電気工業株式会社
发明人：伸一郎山本
IPC分类号： H01F37/00
摘要： PROBLEM TO BE SOLVED: To provide a compact and lightweight reactor. SOLUTION: The reactor comprises a pair of coils 3, 4 arranged in parallel, and an annular core 2 having coil winding parts 23, 24 covered, respectively, with the coils 3, 4, and exposed parts 21, 22 which are not covered with the coils 3, 4 but exposed. The exposed parts 21, 22 of the core 2 has bases 21B, 22B being bonded to the pair of coil winding parts 23, 24 arranged in parallel, and protrusions 21A, 22A protruding from the bases 21B, 22B farther in the thickness direction (vertical direction on the paper surface) than the extension surface of the outer peripheral surface of the coil winding parts 23, 24. The protrusions 21A, 22A have such a shape as a region including the middle of the pair of coils 3, 4 in the parallel direction has a largest protrusion. COPYRIGHT: (C)2012,JPO&INPIT

9. 发明专利

JP5305118B2 Reactor, and boost converter 有权
公开(公告)号：JP5305118B2
公开(公告)日：2013-10-02
申请号：JP2013012807
申请日：2013-01-28
申请人：住友電気工業株式会社
发明人：伸一郎山本 , 肇川口
IPC分类号： H01F37/00 , H01F27/24 , H01F27/255
摘要： PROBLEM TO BE SOLVED: To provide a reactor core in which the amount of coils to be used can be reduced, a reactor and a manufacturing method of the reactor. SOLUTION: A reactor L comprises a core 1 and a coil C which is disposed in the outer periphery of the core 1 (inner core part 11). The core 1 includes the inner core part 11, an outer core part 12 disposed outside of the coil C, and a pair of connecting core parts 13 connecting both the core parts 11, 12 while covering both terminal portions of the coil C. A closed magnetic circuit passing through the core 1 is formed by exciting the coil C. In the core 1, the core parts 11, 12, 13 are integrated without interposing a gap. The inner core part 11 has a higher saturation magnetic flux density (1.2 times or more) than that of the outer core part 12 and the connecting core part 13. Since the saturation magnetic flux density of the inner core part 11 is higher, even if a cross sectional area of the core part 11 is reduced, a large magnetic flux can be obtained. Furthermore, since the core 1 has a gapless structure, the problem such as noise with the presence of a gap hardly occurs. COPYRIGHT: (C)2013,JPO&INPIT

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