FR2423045A1 - SELF COIL - Google Patents

SELF COIL

Info

Publication number
FR2423045A1
FR2423045A1 FR7909495A FR7909495A FR2423045A1 FR 2423045 A1 FR2423045 A1 FR 2423045A1 FR 7909495 A FR7909495 A FR 7909495A FR 7909495 A FR7909495 A FR 7909495A FR 2423045 A1 FR2423045 A1 FR 2423045A1
Authority
FR
France
Prior art keywords
lamellae
coil
winding
air gap
parts
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Withdrawn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
FR7909495A
Other languages
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2423045A1 publication Critical patent/FR2423045A1/en
Withdrawn legal-status Critical Current

Links

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
    • H01F27/24—Magnetic cores
    • H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
    • 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
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H01F27/263—Fastening parts of the core together
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/08—High-leakage transformers or inductances
    • H01F38/10—Ballasts, e.g. for discharge lamps

Abstract

Cette bobine de self comprend un enroulement et un ensemble de lamelles en deux parties entourant l'enroulement de quatre côtés de façon à laisser subsister un entrefer dans la cavité centrale de ladite bobine. Pour l'assemblage des deux parties de l'ensemble de lamelles on a prévu des moyens auxiliaires, pour que les joints compris entre les deux parties soient minimaux et pour que simultanément l'entrefer soit bien défini. Conformément à l'invention, les joints s'étendent perpendiculairement à l'axe de la bobine et sont maintenus par un raccord à cliquet prévu du côté intérieur de l'ensemble de lamelles de sorte que les lamelles sont plaquées les unes contre les autres. Application : ballast de tubes d'éclairage à décharge.This choke coil comprises a winding and a set of two-part strips surrounding the winding on four sides so as to leave an air gap in the central cavity of said coil. Auxiliary means have been provided for assembling the two parts of the set of lamellae, so that the joints between the two parts are minimal and so that the air gap is simultaneously well defined. According to the invention, the seals extend perpendicularly to the axis of the coil and are held by a ratchet connection provided on the interior side of the set of lamellae so that the lamellae are pressed against each other. Application: ballast for discharge lighting tubes.

FR7909495A 1978-04-14 1979-04-13 SELF COIL Withdrawn FR2423045A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7803966A NL7803966A (en) 1978-04-14 1978-04-14 CHOKING COIL.

Publications (1)

Publication Number Publication Date
FR2423045A1 true FR2423045A1 (en) 1979-11-09

Family

ID=19830651

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7909495A Withdrawn FR2423045A1 (en) 1978-04-14 1979-04-13 SELF COIL

Country Status (8)

Country Link
JP (1) JPS54139062A (en)
BE (1) BE875544A (en)
DE (1) DE2914096A1 (en)
ES (1) ES479551A1 (en)
FR (1) FR2423045A1 (en)
GB (1) GB2019104B (en)
IT (1) IT1113880B (en)
NL (1) NL7803966A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3118465A1 (en) * 1981-05-09 1982-11-25 Bruno 8550 Forchheim Waasner Two-piece core laminate, especially for inductors
DE3318370C2 (en) * 1983-05-20 1986-02-06 Waasner, Bruno, 8550 Forchheim Sheet metal core made of two parts and with three legs
ES2079380T3 (en) * 1988-07-27 1996-01-16 Linton & Hirst Ltd IMPROVEMENTS IN MAGNETIC SHEETS.
GB2221354B (en) * 1988-07-27 1993-05-12 Linton & Hirst Ltd Improvements in laminations
JPH0477219U (en) * 1990-11-20 1992-07-06
GB2254964A (en) * 1991-03-26 1992-10-21 Scott & Co Ltd Geo Transformer core assembly
JPH04322415A (en) * 1991-04-22 1992-11-12 Hirohata Denjikou Center Kk Laminated iron core and manufacture thereof

Also Published As

Publication number Publication date
GB2019104A (en) 1979-10-24
JPS54139062A (en) 1979-10-29
DE2914096A1 (en) 1979-10-25
NL7803966A (en) 1979-10-16
ES479551A1 (en) 1980-01-01
GB2019104B (en) 1982-08-18
IT1113880B (en) 1986-01-27
IT7921790A0 (en) 1979-04-11
BE875544A (en) 1979-10-12

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Legal Events

Date Code Title Description
ST Notification of lapse