EP0201846A1 - Bobine d'inductance électromagnétique - Google Patents

Bobine d'inductance électromagnétique Download PDF

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Publication number
EP0201846A1
EP0201846A1 EP19860106175 EP86106175A EP0201846A1 EP 0201846 A1 EP0201846 A1 EP 0201846A1 EP 19860106175 EP19860106175 EP 19860106175 EP 86106175 A EP86106175 A EP 86106175A EP 0201846 A1 EP0201846 A1 EP 0201846A1
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EP
European Patent Office
Prior art keywords
jacket
choke
iron body
iron
choke coil
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Withdrawn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
EP19860106175
Other languages
German (de)
English (en)
Inventor
Max Breitmeier
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0201846A1 publication Critical patent/EP0201846A1/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Withdrawn legal-status Critical Current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
    • H01F17/00—Fixed inductances of the signal type
    • H01F17/04—Fixed inductances of the signal type with magnetic core
    • 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
    • H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
    • H01F17/062—Toroidal core with turns of coil around it
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
    • H01F21/10—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by means of a movable shield

Definitions

  • the present invention relates to an electromagnetic choke with a cylindrical choke coil, the magnetic field of which can be changed by partially guiding the magnetic flux in an iron body.
  • Choke coils of the aforementioned type form inductive resistors in AC circuits, which enable the AC current to be limited with little power loss. Both so-called iron chokes and air chokes are used for this.
  • the magnetic flux is guided in an iron body, the magnetic resistance of the magnetic circuit being able to be regulated by changing an air gap.
  • the inductance of the choke then changes accordingly.
  • the advantage of the iron choke lies in addition to the possibility of regulation in the compact, space-saving design, as well as in the fact that the magnetic flux in the iron body can be guided so that only one ver negligible small magnetic field in the environment arises.
  • the characteristic of the iron choke is strongly linked to the magnetization characteristic of the iron used, whereby, depending on the working method, only the linear part is used or saturation of the iron and thus a reduction in the inductance as an operating state is included, which is certainly disadvantageous.
  • the rod core choke is known as a compromise between air and iron chokes.
  • the construction volume of this rod core choke is reduced by the fact that the introduction of an iron body into the coil shortens the air path of the magnetic flux, which increases the induction and thus also the flux, which in turn increases the inductance.
  • the disadvantage here is that if the Current saturates over a pre-calculated amount of the iron core, which affects the linearity of the choke. Since the iron body is arranged inside the throttle, the scattering into the surroundings is also unabated.
  • the iron body at least partially surrounds the choke coil.
  • the jacket-shaped iron body has a jacket line length equal to or unequal to the length of the jacket lines of the choke coil.
  • the axial extent of the magnetic stray field can be shifted and the inductive resistance can be changed further if, in a further embodiment of the choke according to the invention, the jacket-shaped iron body is slidably seated on the jacket of the choke coil.
  • the jacket-shaped iron body can consist of special iron-containing materials, such as ferrite core elements.
  • the jacket-shaped iron body consists of at least two shell-shaped parts which can then be attached to the side of the coil body and suitably fastened, for example by means of pipe clamps or the like.
  • FIG. 1 which only comprises a cylindrical choke coil 1, it can be seen that the magnetic field 2 spreads radially far with respect to the winding axis 3.
  • the choke coil 1 is surrounded by an iron body 4 in the form of a jacket.
  • FIG. 2 clearly shows that the radial scattering of the magnetic field can be completely avoided in this way by the tube being guided in the form of a tube and thus no magnetic field can occur radially outside the iron jacket. With this, such chokes be arranged compactly with respect to other components of an electrical circuit, without risk of influencing them.
  • the jacket-shaped iron body 4 can consist in the usual way of a wound dynamo sheet or of layered sheet metal lamellae.
  • the jacket-shaped iron body can consist of special iron-containing materials, such as ferrite core elements.
  • the jacket-shaped iron body 4 consists of at least two shell-shaped parts which can then be attached to the side of the coil body and suitably fastened, for example by means of pipe clamps or the like.
  • the axial extent of the magnetic litter can also be expanded move the field and further change the inductive resistance if, in a further embodiment of the choke according to the invention, the jacket-shaped iron body 4 'according to FIG. 3 is slidably seated on the jacket of the choke coil 1, which is not shown in more detail here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
EP19860106175 1985-05-09 1986-05-06 Bobine d'inductance électromagnétique Withdrawn EP0201846A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH196385A CH668662A5 (de) 1985-05-09 1985-05-09 Elektromagnetische drossel.
CH1963/85 1985-05-09

Publications (1)

Publication Number Publication Date
EP0201846A1 true EP0201846A1 (fr) 1986-11-20

Family

ID=4222701

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860106175 Withdrawn EP0201846A1 (fr) 1985-05-09 1986-05-06 Bobine d'inductance électromagnétique

Country Status (2)

Country Link
EP (1) EP0201846A1 (fr)
CH (1) CH668662A5 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020239849A1 (fr) * 2019-05-29 2020-12-03 Philip Morris Products S.A. Composant inductif et procédé de réglage d'une inductance
RU2809063C2 (ru) * 2019-05-29 2023-12-06 Филип Моррис Продактс С.А. Индуктивный компонент и способ регулировки индуктивности

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT183841B (de) * 1953-12-16 1955-11-25 Alfred Rabl Drossel
AT304690B (de) * 1970-02-05 1973-01-25 Zumtobel Walter Transformator oder Induktionsspule
AT322691B (de) * 1972-05-31 1975-06-10 Siemens Ag Elektrische drosselspule

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT183841B (de) * 1953-12-16 1955-11-25 Alfred Rabl Drossel
AT304690B (de) * 1970-02-05 1973-01-25 Zumtobel Walter Transformator oder Induktionsspule
AT322691B (de) * 1972-05-31 1975-06-10 Siemens Ag Elektrische drosselspule

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020239849A1 (fr) * 2019-05-29 2020-12-03 Philip Morris Products S.A. Composant inductif et procédé de réglage d'une inductance
CN113874968A (zh) * 2019-05-29 2021-12-31 菲利普莫里斯生产公司 电感部件和用于调整电感的方法
US20220223339A1 (en) * 2019-05-29 2022-07-14 Philip Morris Products S.A. Inductive component and method for adjusting an inductance
JP2022534579A (ja) * 2019-05-29 2022-08-02 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム 誘導構成要素、およびインダクタンスを調整する方法
RU2809063C2 (ru) * 2019-05-29 2023-12-06 Филип Моррис Продактс С.А. Индуктивный компонент и способ регулировки индуктивности
US12315671B2 (en) * 2019-05-29 2025-05-27 Philip Morris Products S.A. Inductive component and method for adjusting an inductance

Also Published As

Publication number Publication date
CH668662A5 (de) 1989-01-13

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