EP0831499B1 - Einrichtung zur Abführung von Wärme von Ferritkernen induktiver Bauelemente - Google Patents
Einrichtung zur Abführung von Wärme von Ferritkernen induktiver Bauelemente Download PDFInfo
- Publication number
- EP0831499B1 EP0831499B1 EP97115361A EP97115361A EP0831499B1 EP 0831499 B1 EP0831499 B1 EP 0831499B1 EP 97115361 A EP97115361 A EP 97115361A EP 97115361 A EP97115361 A EP 97115361A EP 0831499 B1 EP0831499 B1 EP 0831499B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- thermally conductive
- electrically
- core
- inductive components
- 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.)
- Expired - Lifetime
Links
Images
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
- H01F27/08—Cooling; Ventilating
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
Definitions
- the present invention relates to a device for removal of heat from cores made of magnetic material for inductive components with a layer of electrical and thermally conductive material over which the core is thermally can be coupled to a heat sink (3) according to the preamble of claim 1.
- An electromagnetic component is known from US Pat. No. 2,770,785 known with a core stacked from sheet steel, for better heat dissipation in the core stack Steel sheets thermally conductive sheets as intermediate layers are included.
- From US 3 179 908 A is an electromagnetic component known with a toroid in which for better heat dissipation thermally conductive strips on the core under the winding are provided.
- An electromagnetic core is known from US Pat. No. 3,710,187.
- the one on the surface to suppress sparks has a sintered layer of a metal oxide.
- the present invention is based on the object To design the component of the aforementioned type so that the discharge of heat from ferromagnetic cores inductive Components is guaranteed.
- an inductive component is in principle a core 2 made of ferromagnetic material - as a rule a ferrite core - and a winding 1 provided thereon educated.
- a layer 4 made of electrically and thermally conductive Material provided that is in the form of a heat sink Heatsink 3 is coupled.
- the heat flow is schematic indicated by arrow lines 5.
- induction is prevented of electrical currents in the electrical and thermal conductive layer interruptions provided, for. B. by grinding the pole faces of ferrite cores, by printing with etch-resistant masks and subsequent etching or can be produced by laser cutting.
- partially coated cores have the advantage that small electrical and thermal contact resistance between Component and layer can be achieved.
- the electrically and thermally conductive Layer 4 approximately represents an isotherm, see above that the temperature gradient inside the core towards the Core surface is higher than that of an uncoated core. The heat flow is therefore essentially along the electrical and thermally conductive layer towards the heat sink instead of the thermally poorly conductive ferritic Material with an uncoated core.
- FIG. 2 A possible embodiment of an interrupted electrical and thermally conductive layer corresponding to layer 4 1 is shown in FIG. 2 for an E ferrite core 10, at which on given surface areas thermally and electrically conductive layer 11 is provided is.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
- Non-Reversible Transmitting Devices (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Magnetic Ceramics (AREA)
- General Induction Heating (AREA)
- Transformer Cooling (AREA)
- Soft Magnetic Materials (AREA)
Description
- Figur 1
- eine Prinzipdarstellung eines erfindungsgemäßen Bauelementes mit einer Einrichtung zur Wärmeabführung; und
- Figur 2
- eine perspektivische Darstellung eines Kerns aus ferromagnetischem Material mit einer zur Wärmeabführung geeigneten thermisch leitenden Schicht.
Claims (5)
- Einrichtung zur Abführung von Wärme aus einem Ferritkern (2; 10) für induktive Bauelemente,
mit einer Schicht (4; 11) aus elektrisch und thermisch leitfähigem Material, über die der Ferritkern (2; 10) thermisch an einen Kühlkörper (3) angekoppelt ist,
dadurch gekennzeichnet, daß die Schicht (4; 11) aus elektrisch und thermisch leitfähigem Material durch galvanische Beschichtung direkt auf dem Ferritkern (2; 10) aufgebracht ist. - Einrichtung nach Anspruch 1,
bei der die elektrisch und thermisch leitfähige Schicht (4; 11) eine Metallschicht mit Unterbrechungen zur Vermeidung einer Induzierung von elektrischen Strömen in geschlossenen elektrisch leitenden Pfaden ist. - Einrichtung nach Anspruch 2,
bei der die Metallschicht (4; 11) eine Kupferschicht ist. - Einrichtung nach Anspruch 2,
bei der die Metallschicht (4; 11) eine Silberschicht ist. - Einrichtung nach einem der Ansprüche 1 bis 4,
bei der der Kühlkörper (3) mit der Schicht (4; 11) aus elektrisch und thermisch leitfähigem Material verlötet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19637211 | 1996-09-12 | ||
DE19637211A DE19637211C2 (de) | 1996-09-12 | 1996-09-12 | Einrichtung zur Abführung von Wärme von Ferritkernen induktiver Bauelemente |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0831499A2 EP0831499A2 (de) | 1998-03-25 |
EP0831499A3 EP0831499A3 (de) | 1998-07-29 |
EP0831499B1 true EP0831499B1 (de) | 2003-11-19 |
Family
ID=7805454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97115361A Expired - Lifetime EP0831499B1 (de) | 1996-09-12 | 1997-09-04 | Einrichtung zur Abführung von Wärme von Ferritkernen induktiver Bauelemente |
Country Status (10)
Country | Link |
---|---|
US (1) | US6002318A (de) |
EP (1) | EP0831499B1 (de) |
JP (1) | JPH10106847A (de) |
CN (1) | CN1130736C (de) |
AT (1) | ATE254797T1 (de) |
CA (1) | CA2215654A1 (de) |
DE (2) | DE19637211C2 (de) |
DK (1) | DK0831499T3 (de) |
ES (1) | ES2212021T3 (de) |
TW (1) | TW353184B (de) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 |
US7800257B2 (en) * | 2006-10-25 | 2010-09-21 | Sean Lu | Heat dissipater |
PL2472531T3 (pl) * | 2011-01-03 | 2013-09-30 | Hoeganaes Ab | Rdzeń cewki indukcyjnej |
US9980396B1 (en) | 2011-01-18 | 2018-05-22 | Universal Lighting Technologies, Inc. | Low profile magnetic component apparatus and methods |
CN103582997B (zh) | 2011-02-24 | 2017-02-15 | 克兰电子公司 | Ac/dc功率转换系统及其制造方法 |
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 |
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 |
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 |
US9160228B1 (en) | 2015-02-26 | 2015-10-13 | Crane Electronics, Inc. | Integrated tri-state electromagnetic interference filter and line conditioning module |
US9293999B1 (en) | 2015-07-17 | 2016-03-22 | Crane Electronics, Inc. | Automatic enhanced self-driven synchronous rectification for power converters |
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 |
US9742183B1 (en) | 2016-12-09 | 2017-08-22 | Crane Electronics, Inc. | Proactively operational over-voltage protection circuit |
US9735566B1 (en) | 2016-12-12 | 2017-08-15 | Crane Electronics, Inc. | Proactively operational over-voltage protection circuit |
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 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US2990524A (en) * | 1960-02-01 | 1961-06-27 | Hughes Aircraft Co | Pulse modulator having improved ring neutralized transformer coupling network |
US3179908A (en) * | 1960-08-25 | 1965-04-20 | Emp Electronics Inc | Heat exchange means for electromagnetic devices |
US3710187A (en) * | 1971-09-30 | 1973-01-09 | Gen Electric | Electromagnetic device having a metal oxide varistor core |
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 ES ES97115361T patent/ES2212021T3/es not_active Expired - Lifetime
- 1997-09-04 DK DK97115361T patent/DK0831499T3/da active
- 1997-09-04 AT AT97115361T patent/ATE254797T1/de not_active IP Right Cessation
- 1997-09-04 DE DE59711023T patent/DE59711023D1/de not_active Expired - Fee Related
- 1997-09-04 EP EP97115361A patent/EP0831499B1/de not_active Expired - Lifetime
- 1997-09-05 TW TW086112816A patent/TW353184B/zh active
- 1997-09-05 JP JP9256258A patent/JPH10106847A/ja active Pending
- 1997-09-10 CA CA002215654A patent/CA2215654A1/en not_active Abandoned
- 1997-09-12 CN CN97121431A patent/CN1130736C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1179610A (zh) | 1998-04-22 |
EP0831499A2 (de) | 1998-03-25 |
ATE254797T1 (de) | 2003-12-15 |
DE19637211C2 (de) | 1999-06-24 |
CA2215654A1 (en) | 1998-03-12 |
JPH10106847A (ja) | 1998-04-24 |
ES2212021T3 (es) | 2004-07-16 |
DE59711023D1 (de) | 2003-12-24 |
DK0831499T3 (da) | 2004-02-16 |
MX9706975A (es) | 1998-08-30 |
EP0831499A3 (de) | 1998-07-29 |
US6002318A (en) | 1999-12-14 |
CN1130736C (zh) | 2003-12-10 |
DE19637211A1 (de) | 1998-04-02 |
TW353184B (en) | 1999-02-21 |
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