EP0104649A2 - Electrical inductance coil - Google Patents
Electrical inductance coil Download PDFInfo
- Publication number
- EP0104649A2 EP0104649A2 EP83109630A EP83109630A EP0104649A2 EP 0104649 A2 EP0104649 A2 EP 0104649A2 EP 83109630 A EP83109630 A EP 83109630A EP 83109630 A EP83109630 A EP 83109630A EP 0104649 A2 EP0104649 A2 EP 0104649A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- coil
- springs
- cores
- projections
- angled
- 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.)
- Granted
Links
- 238000005476 soldering Methods 0.000 claims abstract description 3
- 238000004804 winding Methods 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/041—Means for preventing rotation or displacement of the core
Definitions
- the invention relates to an electrical coil, and in particular to an electrical coil suitable for use in printed circuit boards with a coil body with at least one coil body flange with soldering lugs and with magnetizable cores, in particular ferrite cores, which are pushed or plugged onto the coil body.
- the invention has for its object to provide for an electrical coil of the type mentioned above, a possibly also automatically effortlessly mountable, the exact alignment of the cores with respect to one another and to the coil former, simple holder which e.g. When using E-cores, pressure is exerted essentially only on the abutting outer legs of the E-cores and thus an undesirable air gap between the facing end faces of the outer legs is largely avoided.
- the invention provides for an electrical coil according to the preamble of claim that against each core there is an angled spring at its ends, in particular leaf spring or resilient wire bracket, under the effect of which the cores are pressed against each other, and that the ends of the Springs and each bobbin flange are formed with projections or perforations which snap into one another when the springs are assembled.
- the coil former flanges can optionally be provided with projections and the springs with openings or vice versa.
- the arrangement of the projections or - if this is expedient - the openings on the coil former flange should advantageously take place on surfaces of the coil former flanges which are at least approximately parallel to the angled ends of the leaf springs. Provided that such inclined surfaces are missing, it is advisable to integrally form projections on the bobbin flanges that are in a common plane with the bobbin flanges.
- the coil former 1 has integrally molded coil former flanges 2 with solder tab strips 6 on the front ends of the winding former, which are supplemented to form rectangular frames 3 and are equipped with electrical connecting pins 7.
- projections 15 are integrally formed on the narrow sides of these frames and are turned outwards.
- the central slugs 9 of the E core halves 8, consisting of ferrite dip into the hollow cylindrical interior of the winding former of the coil former 1 and penetrate the openings 4 in the frame 3 with their outer legs 10.
- the leaf springs 13 are preferably only against the areas of the surfaces 12 of the E-core halves 8 which are adjacent to the outer legs 10, so that generally only the outer legs 10 of the E-core halves are urged against one another.
- the perforations 16 formed in the angled ends 14 of the leaf springs 13 engage in the projections 15 and thus ensure a safe hold of the leaf springs, and consequently a sheet secured arrangement of the E-core halves 8.
- the projections 15 can also be integrally formed on the end edges of the possibly rectangular end flanges 2.
Landscapes
- Power Engineering (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coils Or Transformers For Communication (AREA)
- Burglar Alarm Systems (AREA)
- Non-Metallic Protective Coatings For Printed Circuits (AREA)
- Threshing Machine Elements (AREA)
- Electroluminescent Light Sources (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Glass Compositions (AREA)
- Developing Agents For Electrophotography (AREA)
- Manufacturing Of Printed Wiring (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Magnetic Treatment Devices (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
Description
Die Erfindung betrifft eine elektrische Spule und zwar insbesondere eine zum Einsatz in gedruckte Leiterplatten geeignete elektrische Spule mit einem Spulenkörper mit mindestens einem Spulenkörperflansch mit Lötfahnen und mit auf den Spulenkörper aufgeschobenen oder aufgesteckten magnetisierbaren Kernen, insbesondere Ferritkernen.The invention relates to an electrical coil, and in particular to an electrical coil suitable for use in printed circuit boards with a coil body with at least one coil body flange with soldering lugs and with magnetizable cores, in particular ferrite cores, which are pushed or plugged onto the coil body.
Der Erfindung liegt die Aufgabe zugrunde, für eine elektrische Spule der vorstehend genannten Art eine ggf. auch automatisch mühelos montierbare, die exakte Ausrichtung der Kerne zueinander und zum Spulenkörper sichernde, einfache Halterung zu schaffen, die z.B. beim Einsatz von E-Kernen bewirkt, daß im wesentlichen nur auf die aufeinander stoßenden Außenschenkel der E-Kerne Druck ausgeübt und damit ein unerwünschter Luftspalt zwischen den einander zugekehrten Stirnflächen der Außenschenkel weitgehend vermieden wird.The invention has for its object to provide for an electrical coil of the type mentioned above, a possibly also automatically effortlessly mountable, the exact alignment of the cores with respect to one another and to the coil former, simple holder which e.g. When using E-cores, pressure is exerted essentially only on the abutting outer legs of the E-cores and thus an undesirable air gap between the facing end faces of the outer legs is largely avoided.
Zur Lösung dieser Aufgabe sieht die Erfindung bei einer elektrischen Spule gemäß Oberbegriff des Patentanspruches vor, daß gegen jeden Kern eine an ihren Enden abgewinkelte Feder, insbesondere Blattfeder oder federnder Drahtbügel, anliegt, unter deren Wirkung die Kerne gegeneinander gedrängt werden, und daß die Enden der Federn und jeder Spulenkörperflansch mit Vorsprüngen bzw. Durchbrechungen ausgebildet sind, die im montierten Zustand der Federn ineinander rasten.To achieve this object, the invention provides for an electrical coil according to the preamble of claim that against each core there is an angled spring at its ends, in particular leaf spring or resilient wire bracket, under the effect of which the cores are pressed against each other, and that the ends of the Springs and each bobbin flange are formed with projections or perforations which snap into one another when the springs are assembled.
Wahlweise können dabei die Spulenkörperflansche mit Vorsprüngen und die Federn mit Durchbrechungen oder umgekehrt ausgestattet sein. Die Anordnung der Vorsprünge oder - falls dies zweckmäßig ist - der Durchbrechungen am Spulenkörperflansch sollte vorteilhafterweise an Flächen der Spulenkörperflansche erfolgen, die zu den abgewinkelten Enden der Blattfedern wenigstens angenähert parallel sind. Vorausgesetzt, es fehlen derartige Schrägflächen, so empfiehlt sich die einstückige Anformung von Vorsprüngen an die Spulenkörperflansche die in einer gemeinsamen Ebene mit den Spulenkörperflanschen liegen.The coil former flanges can optionally be provided with projections and the springs with openings or vice versa. The arrangement of the projections or - if this is expedient - the openings on the coil former flange should advantageously take place on surfaces of the coil former flanges which are at least approximately parallel to the angled ends of the leaf springs. Provided that such inclined surfaces are missing, it is advisable to integrally form projections on the bobbin flanges that are in a common plane with the bobbin flanges.
Die Erfindung wird nachstehend anhand eines in der Zeichnung dargestellten Ausführungsbeispieles näher erläutert, das eine elektrische Spulenhälfte in auseinandergezogener und teilweise gebrochener Ansicht zeigt, wobei zur besseren Veranschaulichung die Wicklung weggelassen ist.The invention will be described by way of example in the drawing illustrated explained in more detail, the ulenhälfte exploded and partially broken view showing an electric S p where to better illustrate the winding is omitted.
Der Spulenkörper 1 besitzt an die Stirnenden des Wickelkörpers einstückig angeformte Spulenkörperflansche 2 mit Lötfahnenleisten 6, die zu rechteckförmigen Rahmen 3 ergänzt und mit elektrischen Anschlußstiften 7 bestückt sind. Im gezeigten Ausführungsbeispiel sind an die Schmalseiten dieser Rahmen Vorsprünge 15 einstückig angeformt, die nach außen gekehrt sind. Im montierten Zustand der elektrischen Spule tauchen die Mittelbutzen 9 der E-Kernhälften 8, bestehend aus Ferrit, in das hohlzylindrische Innere des Wickelkörpers des Spulenkörpers 1 ein und durchdringen mit ihren Außenschenkeln 10 die Durchbrechungen 4 im Rahmen 3.The coil former 1 has integrally molded coil
Die Blattfedern 13 liegen dabei bevorzugt nur gegen die zu den Außenschenkeln 10 benachbarten Bereiche der Flächen 12 der E-Kernhälften 8 an, so daß i.w. nur die Außenschenkel 10 der E-Kernhälften gegeneinander gedrängt werden. Die in den abgewinkelten Enden 14 der Blattfedern 13 ausgebildeten Durchbrechungen 16 rasten in die Vorsprünge 15 ein und gewährleisten so einen sicheren Halt der Blattfedern und folglich auch eine lagegesicherte Anordnung der E-Kernhälften 8.. The
Vorausgesetzt es fehlt ein Rahmen 3, so können die Vorsprünge 15 auch an die Stirnkanten der ggf. auch rechteckförmigen Stirnflansche 2 einstückig angeformt sein.Provided that a
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT83109630T ATE24064T1 (en) | 1982-09-27 | 1983-09-27 | ELECTRIC COIL. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3235655 | 1982-09-27 | ||
DE19823235655 DE3235655A1 (en) | 1982-09-27 | 1982-09-27 | ELECTRIC COIL |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0104649A2 true EP0104649A2 (en) | 1984-04-04 |
EP0104649A3 EP0104649A3 (en) | 1984-05-02 |
EP0104649B1 EP0104649B1 (en) | 1986-12-03 |
Family
ID=6174222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83109630A Expired EP0104649B1 (en) | 1982-09-27 | 1983-09-27 | Electrical inductance coil |
Country Status (9)
Country | Link |
---|---|
US (1) | US4565988A (en) |
EP (1) | EP0104649B1 (en) |
JP (1) | JPS59132110A (en) |
AT (1) | ATE24064T1 (en) |
DE (2) | DE3235655A1 (en) |
DK (1) | DK159222C (en) |
ES (1) | ES283173Y (en) |
FI (1) | FI77740C (en) |
PT (1) | PT77390B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3628290A1 (en) * | 1986-08-20 | 1988-02-25 | Siemens Ag | Coil former for electrical coils |
EP0594031A1 (en) * | 1992-10-22 | 1994-04-27 | SIEMENS MATSUSHITA COMPONENTS GmbH & CO. KG | Electric inductance element |
DE29519428U1 (en) * | 1995-12-07 | 1996-04-04 | Siemens AG, 80333 München | Retaining bracket for a ferrite core |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8401185A (en) * | 1984-04-13 | 1985-11-01 | Philips Nv | TRANSFORMER WITH COAXIAL COILS. |
JPH043467Y2 (en) * | 1985-04-09 | 1992-02-04 | ||
EP0477423B1 (en) * | 1990-09-28 | 1995-11-22 | Siemens Aktiengesellschaft | Frame joining system |
DE102013200696A1 (en) * | 2013-01-17 | 2014-07-17 | Würth Elektronik eiSos Gmbh & Co. KG | inductance component |
USD766190S1 (en) * | 2013-09-26 | 2016-09-13 | Omron Corporation | Relay socket |
DE102018218042A1 (en) * | 2018-10-22 | 2020-04-23 | Würth Elektronik eiSos Gmbh & Co. KG | Core for inductive component and inductive component |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2944583A1 (en) * | 1978-11-09 | 1980-05-22 | Tdk Electronics Co Ltd | BOBBIN WITH CORE |
JPS55110010A (en) * | 1979-02-19 | 1980-08-25 | Matsushita Electric Ind Co Ltd | Current transformer |
JPS56104416A (en) * | 1980-01-24 | 1981-08-20 | Nippon Ferrite Ltd | Inductance element |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3471815A (en) * | 1968-01-04 | 1969-10-07 | Bell Telephone Labor Inc | Temperature compensating inductor and circuit |
US4075590A (en) * | 1977-02-22 | 1978-02-21 | Stephen Foldes | Bobbin construction for electrical coils |
-
1982
- 1982-09-27 DE DE19823235655 patent/DE3235655A1/en not_active Withdrawn
-
1983
- 1983-09-26 PT PT77390A patent/PT77390B/en active IP Right Revival
- 1983-09-26 DK DK439183A patent/DK159222C/en not_active IP Right Cessation
- 1983-09-26 ES ES1983283173U patent/ES283173Y/en not_active Expired
- 1983-09-26 FI FI833444A patent/FI77740C/en not_active IP Right Cessation
- 1983-09-27 DE DE8383109630T patent/DE3368144D1/en not_active Expired
- 1983-09-27 EP EP83109630A patent/EP0104649B1/en not_active Expired
- 1983-09-27 JP JP58179060A patent/JPS59132110A/en active Pending
- 1983-09-27 AT AT83109630T patent/ATE24064T1/en not_active IP Right Cessation
-
1984
- 1984-12-28 US US06/685,978 patent/US4565988A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2944583A1 (en) * | 1978-11-09 | 1980-05-22 | Tdk Electronics Co Ltd | BOBBIN WITH CORE |
JPS55110010A (en) * | 1979-02-19 | 1980-08-25 | Matsushita Electric Ind Co Ltd | Current transformer |
JPS56104416A (en) * | 1980-01-24 | 1981-08-20 | Nippon Ferrite Ltd | Inductance element |
Non-Patent Citations (2)
Title |
---|
PATENTS ABSTRACTS OF JAPAN, Band 4, Nr. 162 (E-33)[644], 12. November 1980, Seite 56 E 33 & JP-A-55 110 010 (MATSUSHITA DENKI SANGYO K.K.) 25.08.1980 * |
PATENTS ABSTRACTS OF JAPAN, Band 5, Nr. 179 (E-82)[851], 17. November 1981 & JP-A-56 104 416 (NIPPON FERRITE K.K.) 20.08.1981 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3628290A1 (en) * | 1986-08-20 | 1988-02-25 | Siemens Ag | Coil former for electrical coils |
EP0594031A1 (en) * | 1992-10-22 | 1994-04-27 | SIEMENS MATSUSHITA COMPONENTS GmbH & CO. KG | Electric inductance element |
US5489884A (en) * | 1992-10-22 | 1996-02-06 | Siemens Atiengesellschaft | Inductive electric component |
DE29519428U1 (en) * | 1995-12-07 | 1996-04-04 | Siemens AG, 80333 München | Retaining bracket for a ferrite core |
Also Published As
Publication number | Publication date |
---|---|
FI833444A0 (en) | 1983-09-26 |
EP0104649A3 (en) | 1984-05-02 |
DK439183D0 (en) | 1983-09-26 |
ATE24064T1 (en) | 1986-12-15 |
DE3368144D1 (en) | 1987-01-15 |
DK439183A (en) | 1984-03-28 |
FI77740B (en) | 1988-12-30 |
ES283173U (en) | 1985-05-16 |
JPS59132110A (en) | 1984-07-30 |
FI77740C (en) | 1989-04-10 |
PT77390B (en) | 1986-02-13 |
US4565988A (en) | 1986-01-21 |
FI833444A (en) | 1984-03-28 |
ES283173Y (en) | 1986-01-01 |
DK159222B (en) | 1990-09-17 |
DK159222C (en) | 1991-03-11 |
PT77390A (en) | 1983-10-01 |
EP0104649B1 (en) | 1986-12-03 |
DE3235655A1 (en) | 1984-03-29 |
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