EP0024319B1 - Verfahren zum Herstellen E-förmiger Kernbleche und I-förmiger Rückschlussbleche einer Drossel oder eines Transformators, insbesondere für Gasentladungslampen - Google Patents

Verfahren zum Herstellen E-förmiger Kernbleche und I-förmiger Rückschlussbleche einer Drossel oder eines Transformators, insbesondere für Gasentladungslampen Download PDF

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Publication number
EP0024319B1
EP0024319B1 EP80104497A EP80104497A EP0024319B1 EP 0024319 B1 EP0024319 B1 EP 0024319B1 EP 80104497 A EP80104497 A EP 80104497A EP 80104497 A EP80104497 A EP 80104497A EP 0024319 B1 EP0024319 B1 EP 0024319B1
Authority
EP
European Patent Office
Prior art keywords
shaped
shaped core
punched
accordance
outer legs
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
Application number
EP80104497A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0024319A1 (de
Inventor
Bernhard Albeck
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.)
Vossloh Schwabe GmbH
Original Assignee
Schwabe & Co KG Elektrotechnische Fabrik 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 Schwabe & Co KG Elektrotechnische Fabrik GmbH filed Critical Schwabe & Co KG Elektrotechnische Fabrik GmbH
Priority to AT80104497T priority Critical patent/ATE3480T1/de
Publication of EP0024319A1 publication Critical patent/EP0024319A1/de
Application granted granted Critical
Publication of EP0024319B1 publication Critical patent/EP0024319B1/de
Expired 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
    • 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
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0233—Manufacturing of magnetic circuits made from sheets
    • 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
    • H01F27/24—Magnetic cores
    • H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented

Definitions

  • the invention relates to a method for producing E-shaped core sheets and matching I-shaped return sheets of a choke or a transformer between their outer legs, in particular for use as a ballast for gas discharge lamps.
  • a sheet metal cut for a jacket core is also known, which is formed from E-shaped core sheets and I-shaped backing sheets, the I-shaped backing sheets being inserted between the legs of the E-shaped core sheets.
  • the aim here is to enclose a jacket core without regard to the lamella shape by means of the housing jacket and bottom in such a way that no magnetic scatter occurs, and to press the lamellae firmly against one another.
  • the invention has for its object to design the manufacturing process for the lamellae in such a way that not only the E-shaped core plate and the I-shaped backing plate are punched with little or no waste, but the lamellae can be arranged in the magnetic circuit in such a way that the air gap can be adjusted as required.
  • This object is achieved in that, according to the invention, two rows of E-shaped core sheets are punched out with the open sides opposite and adjacent to one another and offset from one another in such a way that the ends of the adjacent outer legs of two adjacent E-shaped core sheets at the end of the middle leg of the opposite, Staggered E-shaped core sheets rest and the I-shaped backing sheets are punched out of the free spaces created between the outer legs and the middle legs of the opposite E-shaped core sheets.
  • the I-shaped yoke plates are inserted between the outer legs of the E-shaped core plates.
  • the two recesses on them can be punched out with a single stamp, which also achieves a more stable design of this tool part. Furthermore, the advantage of the stamping process is that, in addition to the two recesses, a recess in the middle leg of the E-shaped core sheet, which serves to accommodate an air gap insert, can be punched out by a corresponding design of the stamp.
  • a method for producing E-shaped core sheets and two L-shaped yoke sheets inserted between their legs, in which two rows of E-shaped core sheets are punched out with the open sides opposite one another (DE-A No. 2638780).
  • This known design of the E-shaped core plate and the L-shaped yoke plates has the disadvantage that the laminated core consists of three parts and therefore does not have sufficient strength since the L-shaped middle parts can be tipped over.
  • the stamping method according to the invention can advantageously be designed in such a way that the I-shaped yoke plate is made longer than the free space between the outer legs of the E-shaped core plate. This ensures that the package of t-shaped yoke plates under tension between the outer legs can be inserted.
  • the same goal can also be achieved by punching out the ends of the I-shaped yoke plate with a bevel, but with the additional advantage that the introduction of the I-packet between the outer legs of the E-packet is facilitated.
  • the stamping method according to the invention is preferably used to produce a flat design of a choke, with no waste of iron material occurring.
  • cases are possible that require a higher design of the throttle without changing the width.
  • the sum of the lengths of the middle leg and the outer leg of the E-shaped core sheet in relation to the free space for punching out the I-shaped return sheet is greater than the length of the I-shaped return sheet, which results in a slight drop in iron material .
  • a major advantage of the punching method according to the invention is that when an air gap is required between the middle leg of the E-shaped core plate and the I-shaped back plate as a result of the shortening of the middle leg, the outer leg is lengthened by the amount of the air gap, which means that there is no additional Iron material an enlarged changing room is formed.
  • FIG. 2 shows how the E-shaped core sheets 1 and the I-shaped backing sheets 2 for the choke according to FIG. 1 are obtained from a sheet metal strip without waste.
  • the E-shaped core sheets 1 are arranged in relation to one another and also offset such that one end 10 of the outer legs 6 of two E-shaped core sheets 1 rests against the end of the middle leg 3 of the E-shaped core sheet 1 facing one another.
  • two I-shaped yoke sheets 2 are obtained by punching out the spaces located between the outer legs 6 and the middle leg 3.
  • the ends of the I-shaped yoke plates 2 have a bevel 11, which naturally returns as a bevel 12 on the E-shaped core plate 1, but without being of practical importance here.
  • Fig. 4 shows the arrangement of the E-shaped core plate 1 and the I-shaped yoke plates 2 in the low-waste stamping process.
  • the sum of the lengths from the middle part 3 and the outer leg 6 of the E-shaped core plate 1, based on the free space for punching out the I-shaped return plate, is greater than the length of the I-shaped return plate, as a result of which the waste A of iron material occurs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Regulation Of General Use Transformers (AREA)
  • Processing Of Solid Wastes (AREA)
EP80104497A 1979-08-21 1980-07-30 Verfahren zum Herstellen E-förmiger Kernbleche und I-förmiger Rückschlussbleche einer Drossel oder eines Transformators, insbesondere für Gasentladungslampen Expired EP0024319B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80104497T ATE3480T1 (de) 1979-08-21 1980-07-30 Verfahren zum herstellen e-foermiger kernbleche und i-foermiger rueckschlussbleche einer drossel oder eines transformators, insbesondere fuer gasentladungslampen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2933781A DE2933781C2 (de) 1979-08-21 1979-08-21 Verfahren zum Herstellen E-förmiger Kernbleche und I-förmiger Rückschlußbleche einer Drossel oder eines Transformators insbesondere für Gasentladungslampen
DE2933781 1979-08-21

Publications (2)

Publication Number Publication Date
EP0024319A1 EP0024319A1 (de) 1981-03-04
EP0024319B1 true EP0024319B1 (de) 1983-05-18

Family

ID=6078926

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80104497A Expired EP0024319B1 (de) 1979-08-21 1980-07-30 Verfahren zum Herstellen E-förmiger Kernbleche und I-förmiger Rückschlussbleche einer Drossel oder eines Transformators, insbesondere für Gasentladungslampen

Country Status (21)

Country Link
EP (1) EP0024319B1 (cs)
JP (1) JPS5633809A (cs)
AR (1) AR222402A1 (cs)
AT (1) ATE3480T1 (cs)
AU (1) AU540139B2 (cs)
BR (1) BR8005257A (cs)
CS (1) CS236771B2 (cs)
DD (1) DD153016A5 (cs)
DE (1) DE2933781C2 (cs)
EG (1) EG13908A (cs)
ES (1) ES494405A0 (cs)
FI (1) FI71210C (cs)
GR (1) GR69693B (cs)
HU (1) HU179890B (cs)
IN (1) IN152290B (cs)
PL (1) PL125117B1 (cs)
RO (1) RO83440B (cs)
SU (1) SU1083926A3 (cs)
UA (1) UA7590A1 (cs)
YU (1) YU39881B (cs)
ZA (1) ZA805082B (cs)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6032419A (ja) * 1983-08-01 1985-02-19 Nec Corp 電力増幅器
DE3402036C1 (de) * 1984-01-21 1985-07-11 Schwabe GmbH & Co KG Elektrotechnische Fabrik, 7067 Urbach Verfahren zum Herstellen E-förmiger Kernbleche und I-förmiger Rückschlußbleche einer Drossel oder eines Transformators, insbesondere für Gasentladungslampen
SE8404231L (sv) * 1984-08-24 1986-02-25 Kanthal Ab Sett att framstella slingformiga metallfolieelement
EP0571242A1 (fr) * 1992-05-21 1993-11-24 Acec Ballasts Circuit magnétique à entrefer, en particulier pour ballasts pour lampes à décharge, et son procédé de fabrication
DE4228642A1 (de) * 1992-08-28 1994-03-03 Tridonic Bauelemente Gmbh Dorn Verfahren zur Impedanz-Einstellung einer Drossel
DE19645098C2 (de) * 1996-11-01 2000-09-21 Vossloh Schwabe Gmbh Drossel und Verfahren zu deren Herstellung
ES2155806B1 (es) * 1999-10-07 2001-10-16 Ventura Ind Procedimiento de troquelado de chapas constitutivas de nucleos magneticos en forma de "e" y de "t".
DE102004012436B4 (de) 2004-03-12 2006-04-20 Vossloh-Schwabe Deutschland Gmbh Kernblech für induktives Bauelement
JP4961163B2 (ja) * 2006-05-08 2012-06-27 ラピスセミコンダクタ株式会社 直流結合増幅回路
DE102008004555B4 (de) * 2008-01-15 2010-07-29 Vossloh-Schwabe Deutschland Gmbh Kernblechsatz für induktive Bauelemente
DE102011116861A1 (de) * 2011-10-25 2013-04-25 Epcos Ag Elektronisches Bauelement zur Führung eines Magnetfeldes

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE159059C (cs) *
DE219466C (cs) *
US2235425A (en) * 1938-12-09 1941-03-18 Western Electric Co Electromagnetic core
GB671823A (en) * 1948-02-06 1952-05-14 British Thomson Houston Co Ltd Improvements in and relating to punched magnetic core laminations for electric induction apparatus such as transformers
DE1438657A1 (de) * 1962-12-07 1969-01-16 Waasner B Kernblech fuer Transformatoren
DE1638944A1 (de) * 1967-02-09 1970-05-14 Waasner B Kernblech mit zwei Blechteilen
DE1613628A1 (de) * 1967-03-20 1970-07-30 Blum Eisen & Metallind Zweiteiliger Eisenkern,insbesondere fuer Transformatoren
DE1946885A1 (de) * 1968-09-24 1970-04-02 Elektrokovina Tovarna Elektrok Drosselspule oder Transformator
AT294270B (de) * 1969-07-14 1971-11-10 Berndeisel & Co Johann Drossel für Entladungslampen, insbesondere Leuchtstofflampen
DE7005834U (de) * 1970-02-19 1970-05-21 Bbc Brown Boveri & Cie Kernblech fuer drosseln oder transformatoren.
DE2139010A1 (de) * 1971-08-04 1973-03-08 Kammeyer Karl Geteilter kernblechschnitt fuer transformatoren
DE2309727C3 (de) * 1973-02-27 1979-05-03 Fa. Hermann Schwabe, 7067 Urbach Verfahren zur Herstellung von insbesondere als Vorschaltgerät für Gasentladungslampen zu verwendende Drosseln oder Transformatoren
DE2638780A1 (de) * 1975-09-03 1977-03-17 Leuenberger H Mantelfoermiger magnetkern fuer einen transformator oder eine induktionsspule
HU172371B (hu) * 1976-06-10 1978-08-28 Hiradastechnikai Anyagok Gyara Plastinki k armature ehlektronnykh mikrotransformatorov svjazi, a tak zhe sposob montazha armatury ili samogo mikrotransformatora
DE2652171A1 (de) * 1976-11-16 1978-05-24 Bertos Ag Vorschaltgeraet u.dgl. mit e- und i-foermigen kernblechen
DE2711855A1 (de) * 1977-03-18 1978-09-21 Erich Grau Mantelblech fuer trafos

Also Published As

Publication number Publication date
PL226317A1 (cs) 1981-06-19
AU540139B2 (en) 1984-11-01
UA7590A1 (uk) 1995-09-29
DD153016A5 (de) 1981-12-16
FI71210C (fi) 1986-11-24
ZA805082B (en) 1981-09-30
CS236771B2 (en) 1985-05-15
IN152290B (cs) 1983-12-17
BR8005257A (pt) 1981-03-04
DE2933781A1 (de) 1981-03-26
AR222402A1 (es) 1981-05-15
FI71210B (fi) 1986-08-14
EP0024319A1 (de) 1981-03-04
HU179890B (en) 1982-12-28
SU1083926A3 (ru) 1984-03-30
ATE3480T1 (de) 1983-06-15
PL125117B1 (en) 1983-03-31
AU6161380A (en) 1981-04-09
YU39881B (en) 1985-04-30
FI802648A7 (fi) 1981-02-22
YU209280A (en) 1983-06-30
GR69693B (cs) 1982-07-08
RO83440B (ro) 1984-02-28
ES8103877A1 (es) 1981-03-16
JPS5633809A (en) 1981-04-04
EG13908A (en) 1982-12-31
ES494405A0 (es) 1981-03-16
DE2933781C2 (de) 1982-10-07
RO83440A (ro) 1984-02-21

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