EP0152096A1 - Ballast inductif pour lampes à décharge - Google Patents

Ballast inductif pour lampes à décharge Download PDF

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Publication number
EP0152096A1
EP0152096A1 EP85101488A EP85101488A EP0152096A1 EP 0152096 A1 EP0152096 A1 EP 0152096A1 EP 85101488 A EP85101488 A EP 85101488A EP 85101488 A EP85101488 A EP 85101488A EP 0152096 A1 EP0152096 A1 EP 0152096A1
Authority
EP
European Patent Office
Prior art keywords
ballast
shaped
approximately
core package
core
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
Application number
EP85101488A
Other languages
German (de)
English (en)
Other versions
EP0152096B1 (fr
Inventor
Robert Ing. Grad. Tschuk
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.)
CAMBIO RAGIONE SOCIALE;MAGNETEK MAY & CHRISTE GMBH
Original Assignee
MAY AND CHRISTE GmbH TRANSFORMATORENWERKE
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 MAY AND CHRISTE GmbH TRANSFORMATORENWERKE filed Critical MAY AND CHRISTE GmbH TRANSFORMATORENWERKE
Publication of EP0152096A1 publication Critical patent/EP0152096A1/fr
Application granted granted Critical
Publication of EP0152096B1 publication Critical patent/EP0152096B1/fr
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
    • 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

Definitions

  • the invention relates to a ballast for gas discharge lamps with a core package constructed in a cladding construction and layered in the longitudinal direction of the core with two symmetrically arranged winding windows of greater width than height and with a preferably square cross section of the ballast.
  • Ballasts of this type are used in particular for modern fluorescent lamps with a tube diameter of 26 mm.
  • ballasts of this type for example with a core package structure in UT form, are constructed with classic dimensioning of the magnetic circuit of the sheath type in such a way that technical properties of approximately the same size, such as total losses and winding heating, result as with the conventional ballasts with the DIN cross-section 42 x 32 mm . This means that the known ballasts have a relatively long core package.
  • the invention has for its object to provide a ballast of the type mentioned, in particular for use with modern fluorescent lamps with a tube diameter of 26 mm, the magnetic circuit is dimensioned such that practically using the same amount of active material about the same technical Properties such as total losses and winding heating, as in the case of standard ballasts with a DIN cross-section of 42 x 32 mm.
  • the height of the winding window is about 1/6 to about 1/8 of the corresponding outer dimension of the core package.
  • the core package length can be reduced with approximately constant overall losses in such a way that the same technical properties as with conventional ballasts with the DIN cross-section 42 x 32 mm can be maintained while maintaining their hole spacing DIN for fastening the device, due to the shortened core package length according to the invention.
  • the height of the winding window is 1 / 6.47 to 1 / 6.82 of the corresponding outer dimensions of the core package, as a result of which even lower overall losses of the ballast are compared with let known ballasts of the type described above be realized.
  • the core package consists of two equal-sized U-shaped parts nisch opening sloping surfaces on the inside of the legs and an I-shaped middle part with the sloping surfaces corresponding roof-shaped wedge surfaces on the front sides.
  • This configuration ensures that both the two U-shaped parts of the core package and the joints between the I-shaped central part and the U-shaped parts are in the magnetically neutral zone and accordingly the ballast has a low magnetic spread, which makes the magnetic excitation adjacent metal parts in luminaires and thus the noise in the luminaires is avoided.
  • the winding is pressed in a form-fitting manner in the core window, whereby an optimal fill factor is achieved and good heat dissipation is ensured.
  • one of the U-shaped parts of the core package L has longitudinal recesses on the outside of the legs in the corner area, in which a U-shaped ballast base with outer walls flush with the outside of the legs sits, while the other U-shaped part of the core package in one U-shaped hood part sits, the side walls of which overlap the side walls of the ballast base.
  • the hood part with the Vorschalttechnikteil after compression the core package parts and the air gap inserts for adjustment of the inductance of the ballast on per se known manner, preferably by unktschwei- SEN P, respectively.
  • a particularly useful and preferred embodiment of the Vordlaltieris according to the invention with a square cross section of about 28 x 28 mm is that it has a winding core width of about 11 mm, an outer leg width of about 4.8 mm, a yoke height of about 5.2 mm, a winding window width of about 16.6 mm and has a winding window height of about 3.9 to 4.2 mm.
  • This structure of the core package results in a width of the core package of approximately 27 mm, while the width of the ballast with the hood part attached is approximately 28.2 mm.
  • the air gap thickness between the inclined surfaces and the wedge surfaces is expediently approximately 0.13 to approximately 0.25 mm, which results in the winding window height between approximately 3.9 and 4.2 mm, a total height of the core package between approximately 26.6 and approximately 27.2 mm and a total height of the ballast between about 27.8 and 28.4 mm.
  • ballast for gas discharge lamps according to the invention shown in the drawings has a core package constructed in a jacket construction and layered in the longitudinal direction of the core with two symmetrically arranged winding windows 1, the height a of which is less than the width d.
  • the ballast has a cross section A 'x D' of approximately 28 x 28 mm.
  • the height a, the winding window 1 is about 1/6 to about 1/8 of the corresponding outer dimension A of the core package.
  • the height a of the winding window is 1 1 / 6.47 to 1 / 6.82 of the corresponding outer dimension A of the core package, specifically in accordance with the air gap thickness ⁇ from approximately 0.13 to approximately 0.25 mm depending on the required inductance of the ballast.
  • the core package is made up of two equally large U-shaped parts 2 and an I-shaped central part 3.
  • the U-shaped parts 2 have conically opening inclined surfaces 4 on the inner sides of the legs.
  • the I-shaped middle part 3 has wedge-shaped surfaces 5 corresponding to the inclined surfaces 4 on the end faces.
  • Deformable air gap inserts 6 made of insulating material or metal are arranged between the inclined surfaces 4 and the wedge surfaces 5.
  • the U-shaped parts 2 In the corner area on the outside of the legs, the U-shaped parts 2 have longitudinal recesses 7, in which the side walls 8 of a U-shaped ballast base 9 are seated such that their outer walls are flush with the outside of the legs of the U-shaped part 2.
  • the other U-shaped part 2 of the core package sits in a U-shaped hood part 10, the side walls of which overlap the side walls 8 of the ballast base.
  • the hood part 10 is connected to the ballast base 9 by spot or projection welding.
  • the winding 11 is brought onto the I-shaped central part 3 of the core package.
  • the middle part 3 provided with the winding 11 is placed with the interposition of the air gap inserts 6 on the wedge surfaces 5 on the inclined surfaces 4 of the U-shaped part 2 of the core package introduced into the ballast base 9.
  • the inclined surfaces 4 of the second U-shaped part 2 of the core package, which is seated in the hood part 10 are guided and pressed against the corresponding wedge surfaces 5 of the I-shaped central part 3.
  • Pressure on the hood part 10 deforms the air gap inserts 6 until the required inductance of the ballast is reached.
  • Hood part 10 and ballast base 9 are then connected to one another by spot welding.
  • the structure of the core package described does not only result in a ballast device with very low magnetic dispersion, but also assembly in series production has been greatly simplified.
  • the winding 11 is extremely simple and efficient to place on the central part 3 of the core package, the central part 3 with the winding 11 attached can be inserted extremely easily into the U-shaped part 2 of the core package sitting in the ballast base 9, the inclined surfaces 4 serving as additional guidance .
  • the inclined surfaces 4 of the second U-shaped part 2 of the core package, which is inserted into the hood part 10 serve to improve the guidance when the hood part 10 is put on and ballast base 9 easily fixable automatically.
  • the helix angle of the inclined surfaces 4 and the wedge surfaces 5 is preferably approximately 30 °.
  • the core package has a central core width of b mm of about 11, an outer leg width c mm of about 4.8 mm, a yoke height e of about 5.2, a W ickel preumble d of about 16.6 mm and a winding window height a of approximately 3.9 to 4.2 mm, the air gap thickness ⁇ between the inclined surfaces 4 and the wedge surfaces 5 being approximately 0.13 to approximately 0.25 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
EP85101488A 1984-02-13 1985-02-12 Ballast inductif pour lampes à décharge Expired EP0152096B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843405063 DE3405063A1 (de) 1984-02-13 1984-02-13 Vorschaltgeraet fuer gasentladungslampen
DE3405063 1984-02-13

Publications (2)

Publication Number Publication Date
EP0152096A1 true EP0152096A1 (fr) 1985-08-21
EP0152096B1 EP0152096B1 (fr) 1989-03-08

Family

ID=6227570

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85101488A Expired EP0152096B1 (fr) 1984-02-13 1985-02-12 Ballast inductif pour lampes à décharge

Country Status (2)

Country Link
EP (1) EP0152096B1 (fr)
DE (2) DE3405063A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2173689A1 (fr) * 1972-02-28 1973-10-12 Cetek Const Electrotech
DE2226575A1 (de) * 1972-05-31 1974-01-24 Siemens Ag Elektrische drosselspule
DE2405019A1 (de) * 1974-02-02 1975-08-14 Slade Components Ltd Drossel
FR2370346A1 (fr) * 1976-11-08 1978-06-02 Bertos Ag Appareil auxiliaire ou similaire avec toles de noyau en e et i.
DE3144840A1 (de) * 1981-11-11 1983-05-26 May & Christe Gmbh, Transformatorenwerke, 6370 Oberursel Streufeldspartransformator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE168029C (fr) *
DE1680029U (de) * 1954-04-24 1954-07-22 Ernst Plathner Fa Dipl Ing Schichtdrossel fuer leuchtstofflampen.
BE795935A (fr) * 1972-02-28 1973-06-18 Cetek Const Electrotech Enroulement inducteur avec carcasse magnetique formee par empilage d'elements de tole
DE7525612U (de) * 1975-08-13 1976-01-15 Philberth, Bernhard, 8031 Puchheim Einteiliger mantelkern-blechschnitt

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2173689A1 (fr) * 1972-02-28 1973-10-12 Cetek Const Electrotech
DE2226575A1 (de) * 1972-05-31 1974-01-24 Siemens Ag Elektrische drosselspule
DE2405019A1 (de) * 1974-02-02 1975-08-14 Slade Components Ltd Drossel
FR2370346A1 (fr) * 1976-11-08 1978-06-02 Bertos Ag Appareil auxiliaire ou similaire avec toles de noyau en e et i.
DE3144840A1 (de) * 1981-11-11 1983-05-26 May & Christe Gmbh, Transformatorenwerke, 6370 Oberursel Streufeldspartransformator

Also Published As

Publication number Publication date
EP0152096B1 (fr) 1989-03-08
DE3405063A1 (de) 1985-09-05
DE3568666D1 (en) 1989-04-13

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