CN1179610A - 电感元件铁氧体磁芯的散热装置 - Google Patents
电感元件铁氧体磁芯的散热装置 Download PDFInfo
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- CN1179610A CN1179610A CN97121431A CN97121431A CN1179610A CN 1179610 A CN1179610 A CN 1179610A CN 97121431 A CN97121431 A CN 97121431A CN 97121431 A CN97121431 A CN 97121431A CN 1179610 A CN1179610 A CN 1179610A
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- 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
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
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- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
- Non-Reversible Transmitting Devices (AREA)
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- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Soft Magnetic Materials (AREA)
Abstract
为使电感元件用铁磁材料磁芯(2)散热,在磁芯(2)上设有可与散热器(3)热耦合的导电与导热层(4)。
Description
本发明涉及专利权利要求1前序部分所述的电感元件铁氧体磁芯的散热装置。
由EP0 532 361 A1可知,在磁芯区和变压器绕组区内装有一导电物质,它起限制作用,使磁芯的绕组发出的磁流在其中束聚。这样可降低或控制变压器的漏感。导电物质例如可以以金属层的形式被覆在磁芯上,同时对金属层刻槽以防止电短路。
本发明的任务在于上述那种金属层的成型,使之适用于电感元件铁磁芯的散热。
本发明通过权利要求1的措施在上述装置上完成了这一任务。
本发明的进一步改进见从属权利要求。
下面根据实施例和附图详细说明本发明。所示为:
图1 本发明的一个具有散热装置的元件的原理图;图2 具有适用于散热的导热层的铁磁材料磁芯的透视图。
按照图1,电感元件在原理上系由一铁磁材料磁芯—通常为铁氧体磁芯2—及装在其上的线包1构成。
为进行散热,本发明在铁氧体磁芯2上加一导电和导热材料层4,它与冷却体形式的散热器3相耦合。热流概略地由箭头线表示。
为防止导电与导热层4中感生电流,该层设有断缝,不能构成闭合的电流通路。这种断缝未在图1中示出,但可从下面还将说明的图2实施例中看到。
前述那种导电与导热层例如可电镀在铁氧体磁芯上,先专门化学镀几微米厚的薄层,然后进行膜层的电镀加厚。为把膜层淀积在铁氧体材料上,使液浴的化学性能,尤其是pH值与铁氧体材料相一致。这里的目的是不损害铁氧体材料的电磁和机械性能。
如上文所述,为抑制导电与导热层中感生电流而规定有断缝,它们例如可通过磨削铁氧体磁芯的极面、通过印刷抗蚀掩模并按着腐蚀或通过激光刻槽来制得。这种局部被膜的磁芯具有的优点是在元件和膜层之间实现了小的接触电阻和接触热阻。
利用这种膜层,例如可通过焊接实现与散热器(如图1所示冷却体3)的最佳热耦合。这里的关键是铜、银等金属与铁氧体材料相比具有高得多的传导能力,热导率的差别可达100倍。导电与导热层4近似地呈现为一等温体,因此,磁芯内部在磁芯表面方向上的温度梯度比未被覆的磁芯情况下高。所以,热的流动基本上是沿着导电与导热层在冷却体的方向上进行,而不是未被覆的磁芯的情况下由导热不良的铁氧体材料进行。
与图1膜层4相应的一断续的导电与导热层,其一种可能的实施形式示于图2中E形铁氧体磁芯10上,该磁芯在规定的表面区上备有导热与导电层11。
Claims (5)
1、电感元件用铁磁材料铁芯(2,10)的散热装置,它具有的被覆在磁芯(2,10)上的导电与导热材料层可使磁芯(2;10)与散热器(3)热耦合。
2、依据权利要求1所述的装置,其特征在于:导电与导热层(4;11)为一金属层,它具有断缝来避免封闭的导电线中感生电流。
3、依据权利要求2所述的装置,其特征在于:金属层(4;11)为一铜层。
4、依据权利要求2所述的装置,其特征在于:金属层(4;11)为一银层。
5、依据权利要求1至4中任何一项所述的装置,其特征在于:在导电与导热材料层(4;11)上装有一冷却体(3)。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19637211A DE19637211C2 (de) | 1996-09-12 | 1996-09-12 | Einrichtung zur Abführung von Wärme von Ferritkernen induktiver Bauelemente |
DE19637211.9 | 1996-09-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1179610A true CN1179610A (zh) | 1998-04-22 |
CN1130736C CN1130736C (zh) | 2003-12-10 |
Family
ID=7805454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN97121431A Expired - Fee Related CN1130736C (zh) | 1996-09-12 | 1997-09-12 | 电感元件铁氧体磁芯的散热装置 |
Country Status (10)
Country | Link |
---|---|
US (1) | US6002318A (zh) |
EP (1) | EP0831499B1 (zh) |
JP (1) | JPH10106847A (zh) |
CN (1) | CN1130736C (zh) |
AT (1) | ATE254797T1 (zh) |
CA (1) | CA2215654A1 (zh) |
DE (2) | DE19637211C2 (zh) |
DK (1) | DK0831499T3 (zh) |
ES (1) | ES2212021T3 (zh) |
TW (1) | TW353184B (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101159187B (zh) * | 2006-10-08 | 2010-07-21 | 财团法人工业技术研究院 | 具表面散热结构的电感 |
CN103282978A (zh) * | 2011-01-03 | 2013-09-04 | 霍加纳斯股份有限公司 | 电感器芯 |
CN103515073A (zh) * | 2013-08-09 | 2014-01-15 | 西南应用磁学研究所 | 高功率密度磁集成平面变压器及制作方法 |
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JP4052436B2 (ja) * | 2002-03-19 | 2008-02-27 | 株式会社ダイフク | 複合コア非線形リアクトルおよび誘導受電回路 |
TW579052U (en) * | 2002-08-14 | 2004-03-01 | Delta Electronics Inc | Transformer with thermal paste for heat conduction |
DE102005008521A1 (de) | 2005-02-24 | 2006-08-31 | OCé PRINTING SYSTEMS GMBH | Anordnung und Verfahren zum Kühlen eines Leistungshalbleiters |
US20060250205A1 (en) * | 2005-05-04 | 2006-11-09 | Honeywell International Inc. | Thermally conductive element for cooling an air gap inductor, air gap inductor including same and method of cooling an air gap inductor |
US7800257B2 (en) * | 2006-10-25 | 2010-09-21 | Sean Lu | Heat dissipater |
US9980396B1 (en) | 2011-01-18 | 2018-05-22 | Universal Lighting Technologies, Inc. | Low profile magnetic component apparatus and methods |
EP2678930B1 (en) | 2011-02-24 | 2020-04-08 | Crane Electronics, Inc. | Ac/dc power conversion system and method of manufacture of same |
JP5552661B2 (ja) | 2011-10-18 | 2014-07-16 | 株式会社豊田自動織機 | 誘導機器 |
US9888568B2 (en) | 2012-02-08 | 2018-02-06 | Crane Electronics, Inc. | Multilayer electronics assembly and method for embedding electrical circuit components within a three dimensional module |
JP6229839B2 (ja) * | 2014-01-27 | 2017-11-15 | Fdk株式会社 | 巻線部品 |
US9831768B2 (en) | 2014-07-17 | 2017-11-28 | Crane Electronics, Inc. | Dynamic maneuvering configuration for multiple control modes in a unified servo system |
FR3024584A1 (fr) * | 2014-07-31 | 2016-02-05 | Noemau | Composant magnetique comportant un moyen de conduction de la chaleur |
DE202014105157U1 (de) | 2014-10-28 | 2014-11-13 | Abb Technology Ag | Induktives Bauteil mit verbesserter Kühlung |
US9230726B1 (en) * | 2015-02-20 | 2016-01-05 | Crane Electronics, Inc. | Transformer-based power converters with 3D printed microchannel heat sink |
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DE102016110579A1 (de) | 2016-06-08 | 2017-12-14 | Epcos Ag | Induktives Bauteil |
US9780635B1 (en) | 2016-06-10 | 2017-10-03 | Crane Electronics, Inc. | Dynamic sharing average current mode control for active-reset and self-driven synchronous rectification for power converters |
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US9979285B1 (en) | 2017-10-17 | 2018-05-22 | Crane Electronics, Inc. | Radiation tolerant, analog latch peak current mode control for power converters |
US10425080B1 (en) | 2018-11-06 | 2019-09-24 | Crane Electronics, Inc. | Magnetic peak current mode control for radiation tolerant active driven synchronous power converters |
WO2021199261A1 (ja) * | 2020-03-31 | 2021-10-07 | 太陽誘電株式会社 | 部品モジュール |
GB2597670B (en) * | 2020-07-29 | 2022-10-12 | Murata Manufacturing Co | Thermal management of electromagnetic device |
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GB399138A (en) * | 1931-12-19 | 1933-09-28 | Gen Electric | Improvements in and relating to methods of reducing heat resistance |
CH299490A (de) * | 1952-02-13 | 1954-06-15 | Sondyna Ag | Netztransformator mit verbesserter Wärmeabfuhr. |
US2769962A (en) * | 1952-08-22 | 1956-11-06 | British Thomson Houston Co Ltd | Cooling means for laminated magnetic cores |
US2770785A (en) * | 1953-01-29 | 1956-11-13 | Raytheon Mfg Co | Directly-cooled electromagnetic components |
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US4379273A (en) * | 1981-06-25 | 1983-04-05 | Mcdonnell Douglas Corporation | Pulse transformer laser diode package |
JP3311391B2 (ja) * | 1991-09-13 | 2002-08-05 | ヴィエルティー コーポレーション | 漏洩インダクタンス低減トランス、これを用いた高周波回路及びパワーコンバータ並びにトランスにおける漏洩インダクタンスの低減方法 |
US5312674A (en) * | 1992-07-31 | 1994-05-17 | Hughes Aircraft Company | Low-temperature-cofired-ceramic (LTCC) tape structures including cofired ferromagnetic elements, drop-in components and multi-layer transformer |
US5726858A (en) * | 1996-05-23 | 1998-03-10 | Compaq Computer Corporation | Shielded electrical component heat sink apparatus |
-
1996
- 1996-09-12 DE DE19637211A patent/DE19637211C2/de not_active Expired - Fee Related
-
1997
- 1997-09-03 US US08/922,631 patent/US6002318A/en not_active Expired - Fee Related
- 1997-09-04 AT AT97115361T patent/ATE254797T1/de not_active IP Right Cessation
- 1997-09-04 EP EP97115361A patent/EP0831499B1/de not_active Expired - Lifetime
- 1997-09-04 DE DE59711023T patent/DE59711023D1/de not_active Expired - Fee Related
- 1997-09-04 DK DK97115361T patent/DK0831499T3/da active
- 1997-09-04 ES ES97115361T patent/ES2212021T3/es not_active Expired - Lifetime
- 1997-09-05 JP JP9256258A patent/JPH10106847A/ja active Pending
- 1997-09-05 TW TW086112816A patent/TW353184B/zh active
- 1997-09-10 CA CA002215654A patent/CA2215654A1/en not_active Abandoned
- 1997-09-12 CN CN97121431A patent/CN1130736C/zh not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101159187B (zh) * | 2006-10-08 | 2010-07-21 | 财团法人工业技术研究院 | 具表面散热结构的电感 |
CN103282978A (zh) * | 2011-01-03 | 2013-09-04 | 霍加纳斯股份有限公司 | 电感器芯 |
CN103282978B (zh) * | 2011-01-03 | 2016-08-10 | 霍加纳斯股份有限公司 | 电感器芯 |
CN103515073A (zh) * | 2013-08-09 | 2014-01-15 | 西南应用磁学研究所 | 高功率密度磁集成平面变压器及制作方法 |
CN103515073B (zh) * | 2013-08-09 | 2016-08-17 | 西南应用磁学研究所 | 高功率密度磁集成平面变压器及制作方法 |
Also Published As
Publication number | Publication date |
---|---|
DK0831499T3 (da) | 2004-02-16 |
MX9706975A (es) | 1998-08-30 |
TW353184B (en) | 1999-02-21 |
DE59711023D1 (de) | 2003-12-24 |
ATE254797T1 (de) | 2003-12-15 |
DE19637211A1 (de) | 1998-04-02 |
EP0831499B1 (de) | 2003-11-19 |
DE19637211C2 (de) | 1999-06-24 |
CN1130736C (zh) | 2003-12-10 |
US6002318A (en) | 1999-12-14 |
JPH10106847A (ja) | 1998-04-24 |
ES2212021T3 (es) | 2004-07-16 |
CA2215654A1 (en) | 1998-03-12 |
EP0831499A3 (de) | 1998-07-29 |
EP0831499A2 (de) | 1998-03-25 |
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