EP1367612B1 - Corps de bobine et inductance comportant un tel corps de bobine - Google Patents

Corps de bobine et inductance comportant un tel corps de bobine Download PDF

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Publication number
EP1367612B1
EP1367612B1 EP03012440A EP03012440A EP1367612B1 EP 1367612 B1 EP1367612 B1 EP 1367612B1 EP 03012440 A EP03012440 A EP 03012440A EP 03012440 A EP03012440 A EP 03012440A EP 1367612 B1 EP1367612 B1 EP 1367612B1
Authority
EP
European Patent Office
Prior art keywords
wire
core
coil former
inductor
bobbin
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 - Lifetime
Application number
EP03012440A
Other languages
German (de)
English (en)
Other versions
EP1367612A1 (fr
Inventor
Josef Feth
Anneliese Drespling
Klaus Zimmermann
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.)
TDK Electronics AG
Original Assignee
Epcos AG
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 Epcos AG filed Critical Epcos AG
Publication of EP1367612A1 publication Critical patent/EP1367612A1/fr
Application granted granted Critical
Publication of EP1367612B1 publication Critical patent/EP1367612B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01F17/06—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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2895—Windings disposed upon ring cores
    • 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
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/16—Toroidal transformers

Definitions

  • the invention relates to an improvement of the embodiment of the bobbin of a core choke, preferably a toroidal core choke.
  • Ring core chokes are devices having at least two wires wound around the ring-like insulated core (wire windings). Such devices may, for. B. to avoid electrical interference in industrial equipment, vehicle control units, consumer electronics or household appliances.
  • the insulation of the metal wires is achieved by using a copper enameled wire.
  • Another isolation option is that an electrically conductive core itself umsinterert or painted.
  • the insulation of the wire windings to the core can be ensured by arranging the core in a tight insulating plastic sheath.
  • the potential separation between the wire windings is usually realized with cardboard inserts.
  • the potential separation can also be achieved by a middle wall separating two wire feedthroughs.
  • the attachment of the inductor windings on the inductor core or compliance with the grid, d. H. the distance between the electrical connections, is usually ensured with a casting.
  • the encapsulation additionally serves to improve the thermal conductivity of the component and protects the toroidal core from moisture.
  • An encapsulation may consist, for example, of adhesive, epoxy resin or polyurethane.
  • the pouring of the chokes represents an additional workload in the production of the components and is associated with correspondingly high costs.
  • Another known way of attaching the wire windings around the choke core is a loose wire arrangement around the core sheath.
  • the loose wire arrangement around the core is disadvantageous, because in this case the mechanical instability of the construction can lead to the lability of the grid dimension between the electrical connections and thus to short-circuits.
  • Object of the present invention is to improve a core choke having a choke core in the form of a closed yoke (preferably toroidal core choke) so that when radial arrangement of the wire connections the risk of Short circuits are reduced and the manufacturing process is simplified.
  • a closed yoke preferably toroidal core choke
  • the invention provides a bobbin which serves to receive a magnetic throttle core.
  • the bobbin according to the invention is an insulating Kernumhüllung, wherein the reactor core to be wrapped is formed as a closed yoke.
  • the invention For insulating individual windings of a wire winding from each other and for maintaining a grid dimension, which means the distance between the radially arranged electrical terminals of the device, according to the invention-arranged front wire guide means are provided, which are formed as part of the bobbin.
  • the inventive, integrated in the bobbin wire guide saves additional effort for the attachment of the wire windings on the bobbin and ensures a particularly high reliability of the core choke with regard to short circuits by ensuring the grid size.
  • the mentioned wire guide devices may be formed, for example, as highlights on the underside of the bobbin or the trough.
  • Said throttle core is preferably annular. However, it may have any other closed shape, for example that of a closed yoke bent to a triangle. It may also be O-, D-shaped or rectangular in cross-section.
  • the bobbin may consist of solid heat-resistant insulating plastic, such as LCP. It is possible to form the bobbin as a tightly closable trough with a cover plate of the same material.
  • the cover plate can either be snapped or rest on the trough.
  • Said bobbin is completely filled with a throttle core or - to set predetermined magnetic properties of the component - partially filled.
  • the choke core consists of a material suitable for storing magnetic energy with magnetic properties, eg. B. of ferrites, iron powder or amorphous iron.
  • the bobbin may be wrapped with one or two wire windings (through the wire feedthroughs) disposed on opposite sides of the bobbin.
  • a wire winding means a wire wound around the reactor core, including all windings between two terminals at both ends of the wire. This wire can z.
  • As copper enamel, aluminum wire, wire or metal hoses. The insulation of the windings is achieved by applying a lacquer layer or by means of an insulating plastic tube.
  • the potential separation between several wire windings in an advantageous embodiment of a core throttle according to the invention is carried out by a corresponding number of formed in the middle of the bobbin separating webs.
  • the design of the dividers depends on the number of wire windings or wire feedthroughs. For example, in two wire feedthroughs, such a divider connects the opposite sides of the yoke. If there are more than two wire windings, this can be configured star-shaped, for example.
  • fixation of the core throttle according to the invention in the housing or on the board of a terminal in a further advantageous embodiment is z. B. by means of hooks formed on at least one end face of the bobbin, or on at least one of the end face of the trough or the cover plate brackets.
  • Said bobbin can also have defined gripping surfaces for a picking arm for automatic assembly. This has the advantage that the corresponding manual work is avoided in the production of the terminals.
  • the coil body enveloping the choke core thus assumes several functions simultaneously in advantageous exemplary embodiments. It serves to insulate the reactor core, to separate the potential between the wire windings, to guide the wire and to ensure the grid dimension and to fix the position of the reactor in application devices.
  • the production process of a core choke becomes simpler and less expensive than before.
  • FIG. 1 the invention is explained with reference to a view of a core choke with a bobbin according to the invention from below.
  • the wire windings DW1 and DW2 are wound around the ring-like bobbin SK through the wire feedthroughs DD and separated from each other by means of separating webs TS.
  • the fixed arrangement the wire windings in the component as well as the adherence to the grid dimension between the upwardly running electrical connections of the two wire windings DW1, DW2 is ensured by frontally arranged between individual windings wire guides DF.
  • a gripping surface for automatic assembly is marked GF1.
  • a holder HA1 is provided for fixing the position of the component in application devices.
  • FIG. 2 An inventive bobbin SK is in FIG. 2 shown in perspective view from below.
  • FIG. 3 represents an advantageous embodiment of a bobbin SK according to the invention in a perspective view from above.
  • the bobbin consists of a trough TR with a cover plate DP. It is possible that the cover plate is snapped or rests on the trough.
  • the gripping surface GF2 is ensured here by the planar geometry of the cover plate DP.
  • a mounting device HA2 formed on the cover plate serves to fix the position of the component.
  • FIG. 4 is another cut of one in FIG. 3 Shown already shown inventive bobbin of a nuclear reactor.
  • the cover plate DP is snapped in this embodiment. Another possibility is that the cover plate rests on the trough.
  • the trough TR and the cover plate DP surround the throttle core KE.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Insulating Of Coils (AREA)

Claims (11)

  1. Corps (SK) de bobine pour la réception d'une inductance (KE) magnétique sous la forme d'une culasse fermée,
    - dans lequel au moins une traversée (DD) de fil disposée dans une partie médiane est formée,
    - dans lequel des dispositifs (DF) de guidage de fil pour le guidage d'un enroulement ou de plusieurs enroulements (DW1, DW2) de fil sont formés en ayant pour l'un des enroulements de fil des bornes électriques disposées radialement et pour le maintien d'une dimension de trame,
    caractérisé
    en ce que les dispositifs (DF) de guidage de fil font partie du corps (SK) de bobine.
  2. Corps de bobine suivant la revendication 1, qui est constitué d'une auge (TR) ayant une plaque (DP) formant couvercle.
  3. Corps de bobine suivant au moins l'une des revendications 1 ou 2, dans lequel des traversées de fil disposées dans une partie médiane sont isolées les unes des autres par au moins une réglette de séparation.
  4. Corps de bobine suivant au moins l'une des revendications 1 à 3, dans lequel des surfaces (GF1, GF2) de prise pour un bras de préhension pour un équipement automatique sont prévus sur au moins un côté frontal du corps (SK) de bobine.
  5. Corps de bobine suivant au moins l'une des revendications 1 à 4, dans lequel des fixations (HA1, HA2) incorporées sont présentes sur au moins un côté frontal du corps de bobine pour l'immobilisation en position de l'élément dans des appareils finaux.
  6. Inductance comprenant un corps de bobine suivant au moins l'une des revendications 1 à 5,
    et comprenant une inductance sous la forme d'une culasse fermée, dans laquelle le corps (SK) de bobine est enroulé par au moins un enroulement (DW1) de fil passant dans la traversée (DD) de fil.
  7. Inductance suivant la revendication 6,
    qui a au moins deux enroulements (DW1, DW2) de fil et un nombre correspondant de traversées (DD) de fil disposées dans une partie médiane.
  8. Inductance suivant au moins l'une des revendications 6 ou 7, dans lequel l'inductance (KE) remplit complètement le corps (SK) de bobine.
  9. Inductance suivant au moins l'une des revendications 6 ou 7, dans lequel l'inductance ne remplit que partiellement le corps (SK) de bobine.
  10. Inductance suivant au moins l'une des revendications 6 à 9, dans lequel les enroulements (DW1, DW2) de fils sont en fil métallique, en un conducteur à brin ou en une tresse métallique.
  11. Inductance suivant au moins l'une des revendications 6 à 10, dans lequel les enroulements (DW1, DW2) de fil sont munis d'une couche isolante de vernis ou d'une gaine en matière plastique.
EP03012440A 2002-05-29 2003-05-30 Corps de bobine et inductance comportant un tel corps de bobine Expired - Lifetime EP1367612B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10223995 2002-05-29
DE10223995A DE10223995C1 (de) 2002-05-29 2002-05-29 Spulenkörper und Kerndrossel mit dem Spulenkörper

Publications (2)

Publication Number Publication Date
EP1367612A1 EP1367612A1 (fr) 2003-12-03
EP1367612B1 true EP1367612B1 (fr) 2010-03-10

Family

ID=29285706

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03012440A Expired - Lifetime EP1367612B1 (fr) 2002-05-29 2003-05-30 Corps de bobine et inductance comportant un tel corps de bobine

Country Status (3)

Country Link
EP (1) EP1367612B1 (fr)
AT (1) ATE460738T1 (fr)
DE (2) DE10223995C1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004025114A1 (de) * 2004-05-21 2006-02-16 Siemens Ag Trog zur Isolierung eines hohlzylindrischen Ringkerns eines Fehlerstromschutzschalters und entsprechendes Ringkernbauelement
DE102004039230A1 (de) 2004-08-12 2006-02-23 Epcos Ag Induktives Bauelement für hohe Ströme und Verfahren zu dessen Herstellung
DE202004014066U1 (de) 2004-09-09 2004-12-16 Vogt Electronic Aktiengesellschaft Trägerbauteil und Entstördrosselvorrichtung
DE102004048966A1 (de) 2004-10-07 2006-04-13 Epcos Ag Vorrichtung zur Potentialtrennung, Ringkerndrossel und Verfahren zur Herstellung der Ringkerndrossel
DE102005006344A1 (de) 2005-02-11 2006-08-17 Epcos Ag Isolierteil und Ringkerndrossel
DE102005027942A1 (de) 2005-06-16 2006-12-28 Epcos Ag Haltevorrichtung, Trägervorrichtung für eine Ringkerndrossel und induktives Bauelement
DE102005027943A1 (de) 2005-06-16 2006-12-28 Epcos Ag Trägervorrichtung für eine Ringkerndrossel, Halterung für ein induktives Bauelement und induktives Bauelement
DE102008054939A1 (de) 2008-12-18 2010-07-01 Vacuumschmelze Gmbh & Co. Kg Stromkompensierte Drossel und Verfahren zur Herstellung einer Stromkompensierten Drossel
DE102009046570B4 (de) * 2009-11-10 2016-07-28 Vacuumschmelze Gmbh & Co. Kg Induktive Anordnung und Verfahren zum Herstellen einer induktiven Anordnung
DE102013213404A1 (de) * 2013-07-09 2015-01-15 Vacuumschmelze Gmbh & Co. Kg Induktives Bauelement
CN105788804A (zh) * 2014-12-23 2016-07-20 台达电子工业股份有限公司 适用叠层绕法的磁性组件
CN106653323B (zh) * 2016-11-20 2018-10-02 江苏阜宁金宁三环富士电气有限公司 一种通用规格电感
CN106653322B (zh) * 2016-11-20 2018-06-22 江苏阜宁金宁三环富士电气有限公司 一种通用电感
CN106683825B (zh) * 2016-11-20 2018-10-02 江苏阜宁金宁三环富士电气有限公司 一种工标电感试件
DE102017222243A1 (de) * 2017-12-08 2019-06-13 Zf Friedrichshafen Ag Drossel mit Kühlvorrichtung
DE102019215514A1 (de) * 2019-10-10 2021-04-15 Robert Bosch Gmbh Gleichtaktdrossel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0241852Y2 (fr) * 1985-03-20 1990-11-08
US4975672A (en) 1989-11-30 1990-12-04 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration High power/high frequency inductor
DE4216248C2 (de) * 1992-05-16 2000-05-18 Abb Patent Gmbh Aufnahmebehälter für einen Wandler für einen Fehlerstromschutzschalter und Wandler
DE4223522A1 (de) * 1992-07-17 1994-01-20 Bosch Gmbh Robert Baugruppe für elektronische Steuergeräte
DE10013143C2 (de) * 2000-03-17 2002-06-27 Aeg Niederspannungstech Gmbh Messwandler

Also Published As

Publication number Publication date
DE10223995C1 (de) 2003-11-27
DE50312491D1 (de) 2010-04-22
ATE460738T1 (de) 2010-03-15
EP1367612A1 (fr) 2003-12-03

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