EP1271573A2 - Inductance avec noyau - Google Patents

Inductance avec noyau Download PDF

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Publication number
EP1271573A2
EP1271573A2 EP02009101A EP02009101A EP1271573A2 EP 1271573 A2 EP1271573 A2 EP 1271573A2 EP 02009101 A EP02009101 A EP 02009101A EP 02009101 A EP02009101 A EP 02009101A EP 1271573 A2 EP1271573 A2 EP 1271573A2
Authority
EP
European Patent Office
Prior art keywords
core
coil
thread
flanks
wire
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.)
Withdrawn
Application number
EP02009101A
Other languages
German (de)
English (en)
Other versions
EP1271573A3 (fr
Inventor
Werner Bohnert
Heico Bohnert
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.)
Bohnert GmbH
Original Assignee
Bohnert GmbH
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 Bohnert GmbH filed Critical Bohnert GmbH
Publication of EP1271573A2 publication Critical patent/EP1271573A2/fr
Publication of EP1271573A3 publication Critical patent/EP1271573A3/fr
Withdrawn legal-status Critical Current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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306—Fastening or mounting coils or windings on core, casing or other support
    • 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
    • H01F17/045—Fixed inductances of the signal type  with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/098—Mandrels; Formers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers

Definitions

  • the invention relates to a coil with a core according to the preamble of the claim 1 and a method for their production according to the preamble of the claim 7th
  • the invention has for its object a coil with a core and a method to propose for their manufacture, which simplify the manufacture of the coil.
  • the core of the coil according to the invention has a thread with a acute flank angle.
  • the turns of the coil are frictional between flanks of the thread of the core.
  • the flank angle of the Thread of the core is chosen so that a frictional connection with the turns of the Coil arises when the turns of the coil with sufficient force between the flanks of the thread are introduced.
  • the flank angle of the thread of the core depends on the Material pairing between the wire forming the coil or an electrical one Isolation of the wire and the core.
  • a flat thread is also a limit case an axis of the core of a right-angled flank, i.e. a flank angle of 0 ° possible.
  • a flat thread has the disadvantage, however, that a distance between the Flanks matched very precisely to a diameter of the wire of the coil must be to ensure the desired friction.
  • a tolerance of the Wire diameter and the distance of the thread flanks is small, which is why threads with sloping flanks and an acute flank angle be brought forward.
  • a flat thread of the core of the coil is said to be Borderline case to be included by the invention.
  • the invention has the advantage that the coil is wound directly onto the core and thus the work steps of pulling out the coil from a winding mandrel and the placement of the coil on the core. Furthermore, the There is no need to glue the coil to the core.
  • the core of the coil does not necessarily have to be magnetically active, preferably However, a magnetic field influencing the coil becomes magnetizable core used.
  • the core is a ferrite core.
  • the In principle, the coil can be wound from any electrically conductive wire.
  • a copper wire is used for the coil, which has a high has plastic deformability and low elastic deformability.
  • a copper wire springs after winding less and is therefore more suitable for winding the turns between the flanks of the thread of the core.
  • a necessary friction to the turns of the coil against elastic resilience between the Keeping flanks of the core thread is low with copper wire.
  • the wire preferably has electrical insulation, that is for example coated with an insulating varnish. The insulation increases the Friction between the turns of the coil and the flanks of the thread of the Core.
  • the coil 10 according to the invention shown in the drawing is made of a Wrapped copper wire, which is electrically insulated with a layer of lacquer. Ends 12 are stripped for electrical connection of the coil 10, a limit of Lacquer layer is designated by reference number 14.
  • the coil 10 is on one Ferrite core 16 wound.
  • the ferrite core 16 has a cylindrical shape and is provided with a thread 18.
  • the thread 18 is a pointed thread V-shaped cross-section, it has an acute flank angle ⁇ .
  • the coil 10 is wound directly on the core 16.
  • winding the coil 10 on the core 16 is such a large tensile force on the coil 10 forming Copper wire exerted on the copper wire and therefore the turns of the coil 10 are drawn between the flanks of the thread 18.
  • the flank angle ⁇ of the thread 18 is selected to be so acute that the turns of the Coil 10 by friction between the flanks of the thread 18th clamped and the coil 10 is held firmly and rattle-free on the core 16.
  • the flank angle ⁇ of the thread 18 of the core 16 is chosen so acute that a Friction between the coil 10 forming when winding the coil 10th between the flanks of the thread 18 drawn wire and the Thread 18 of the core 16 is created, the wire or the turns of the coil 10 between the flanks of the thread 18 and thus the coil 10 fixed and rattling free on the core 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
EP02009101A 2001-06-16 2002-04-24 Inductance avec noyau Withdrawn EP1271573A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10129163A DE10129163C2 (de) 2001-06-16 2001-06-16 Spule mit Kern und Verfahren zu deren Herstellung
DE10129163 2001-06-16

Publications (2)

Publication Number Publication Date
EP1271573A2 true EP1271573A2 (fr) 2003-01-02
EP1271573A3 EP1271573A3 (fr) 2003-01-22

Family

ID=7688467

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02009101A Withdrawn EP1271573A3 (fr) 2001-06-16 2002-04-24 Inductance avec noyau

Country Status (2)

Country Link
EP (1) EP1271573A3 (fr)
DE (1) DE10129163C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010049849A1 (fr) * 2008-10-28 2010-05-06 Koninklijke Philips Electronics N.V. Réutilisation d’un filet de vis

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005022927A1 (de) 2005-05-13 2006-11-16 Würth Elektronik iBE GmbH Elektronisches Bauteil und Verfahren zu seiner Befestigung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB303541A (en) * 1927-10-04 1929-01-04 Frederick William Twort Improvements relating to electrical transformers or couplers
US3147540A (en) * 1957-05-23 1964-09-08 Rea Magnet Wire Company Inc Method of manufacturing encapsulated electrical units
US4500832A (en) * 1983-02-28 1985-02-19 Codman & Shurtleff, Inc. Electrical transformer
US5550523A (en) * 1993-09-01 1996-08-27 U.S. Philips Corporation Inductor
US5767759A (en) * 1993-09-01 1998-06-16 U.S. Philips Corporation Inductor with plural linearly aligned spaced apart ferrite cores

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE849127C (de) * 1950-01-28 1952-09-11 Siemens Ag Hochfrequenzspule mit ferromagnetischem Massekern
DE836055C (de) * 1950-04-15 1952-04-07 Schaub Appbau Ges M B H G Abgleichbare Spule fuer Kurzwellenschwingkreise
JPH01268006A (ja) * 1988-04-20 1989-10-25 Matsushita Electric Ind Co Ltd 中間タップ付き面実装コイル
JPH05343232A (ja) * 1992-06-05 1993-12-24 Murata Mfg Co Ltd ノイズフィルタ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB303541A (en) * 1927-10-04 1929-01-04 Frederick William Twort Improvements relating to electrical transformers or couplers
US3147540A (en) * 1957-05-23 1964-09-08 Rea Magnet Wire Company Inc Method of manufacturing encapsulated electrical units
US4500832A (en) * 1983-02-28 1985-02-19 Codman & Shurtleff, Inc. Electrical transformer
US5550523A (en) * 1993-09-01 1996-08-27 U.S. Philips Corporation Inductor
US5767759A (en) * 1993-09-01 1998-06-16 U.S. Philips Corporation Inductor with plural linearly aligned spaced apart ferrite cores

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 032 (E-876), 22. Januar 1990 (1990-01-22) & JP 01 268006 A (MATSUSHITA ELECTRIC IND CO LTD), 25. Oktober 1989 (1989-10-25) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010049849A1 (fr) * 2008-10-28 2010-05-06 Koninklijke Philips Electronics N.V. Réutilisation d’un filet de vis
US8390416B2 (en) 2008-10-28 2013-03-05 Koninklijke Philips Electronics N.V. Reuse of screw thread

Also Published As

Publication number Publication date
EP1271573A3 (fr) 2003-01-22
DE10129163C2 (de) 2003-08-28
DE10129163A1 (de) 2003-01-02

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