EP2502243A2 - Dispositif de séparation de potentiel et bobine de choc à noyau toroïdal - Google Patents

Dispositif de séparation de potentiel et bobine de choc à noyau toroïdal

Info

Publication number
EP2502243A2
EP2502243A2 EP10778665A EP10778665A EP2502243A2 EP 2502243 A2 EP2502243 A2 EP 2502243A2 EP 10778665 A EP10778665 A EP 10778665A EP 10778665 A EP10778665 A EP 10778665A EP 2502243 A2 EP2502243 A2 EP 2502243A2
Authority
EP
European Patent Office
Prior art keywords
portions
toroidal core
webs
core
insulating regions
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
EP10778665A
Other languages
German (de)
English (en)
Other versions
EP2502243B1 (fr
Inventor
Günter FEIST
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 EP2502243A2 publication Critical patent/EP2502243A2/fr
Application granted granted Critical
Publication of EP2502243B1 publication Critical patent/EP2502243B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H01F27/28—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
    • 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
    • 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
    • H01F41/04—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 for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/125—Other insulating structures; Insulating between coil and core, between different winding sections, around the coil

Definitions

  • the invention relates to a device for electrical isolation for installation in a core hole of a toroidal core.
  • the application relates to a toroidal core choke having a ring ⁇ core, a device for electrical isolation and at least two electrically isolated from each other by the device windings.
  • Ring core chokes with arranged on a toroidal windings are widely known.
  • the problem basically arises of electrically separating the individual windings from one another.
  • the known device comprises at least three webs are required for correct positio ⁇ discrimination and securing of the device. It is therefore particularly not suitable for Ring core chokes with only two windings, as they are often used in particular when used in mains filters.
  • the device has a central region and two insulating regions projecting from the central region in the radial direction of the core hole and movable in the radial direction.
  • the central region has a compression zone with at least two first sections of two parallel to one another
  • Each of the at least two first sections is elastically deformable S-shaped, wherein the at least two first portions of the two webs are arranged parallel to each other in the relaxed state of the compression zone.
  • each of the two webs further each include a second portion, wherein the at least two first portions and two second portions of the two webs in the relaxed state of the traffic jam monitoring ⁇ zone forming the sides of a parallelogram.
  • One of the ⁇ like, preferably centrally arranged rhomboid allows a kink-free compression of the compression zone.
  • the at least two first portions of a lower material ⁇ thickness than the second portions so that when a motion of the isolation regions in the radial direction at least two first portions are deformed S-shape and the two ⁇ ten sections in the Be moved substantially parallel to each other.
  • the device is integrally formed.
  • it can be particularly simple and inexpensively manufactured as an injection molded ⁇ who.
  • the device has two with respect to the central region gegenü ⁇ overlying insulating regions, so that the device has the shape of a compressible in length web.
  • An embodiment of the device in the form of a longitudinally compressible separating web with two opposing insulating regions is particularly suitable for use in toroidal core chokes with two windings, for example for a line filter with a phase conductor and a neutral conductor.
  • the isolation regions extend beyond an associated part of the centering ⁇ ral Schemees in the tangential direction of the core hole. In this way, a desired insulation distance between adjacent windings of the toroidal core can be set independently of the material thickness of the device for electrical isolation in the central region.
  • the device has at least one holding part with at least one latching element for latching the device with a holder for receiving the toroidal core choke.
  • a holding part allows the locking of the toroidal core choke on a circuit board or in a similar arrangement for mechanical fixation of Ring core choke.
  • Figure 1 is a front view of a toroidal core throttle according ei ⁇ nem first embodiment of the invention
  • FIG. 2 shows a perspective view of the ring core roses according to FIG. 1,
  • Figure 5 is a side view of a device for potential separation ⁇ according to a second embodiment.
  • the toroidal core choke 1 comprises a toroidal core 2 and two windings 3a and 3b which are electrically insulated from one another.
  • the windings 3a and 3b are, for example, Dros ⁇ selspulen in a power supply line to a single-phase power supply network with a phase conductor and a neutral conductor.
  • the toroidal core choke 1 further comprising a Vorrich ⁇ tung 4 for potential separation.
  • the device 4 is fitted in the core hole 5 of the toroidal core 2.
  • Figure 2 shows a perspective view of the Ringkerndros ⁇ sel 1 according to Figure 1. In the embodiment, it is a toroidal core choke 1 for vertical mounting on a ge ⁇ printed circuit board.
  • the device 4 described below for potential separation is also suitable for use with other types of toroidal core chokes 1, in particular also for horizontal mounting.
  • Figures 3A and 3B show detailed front views of the device 4 for potential separation according to the first embodiment in the relaxed or compressed state.
  • the device 4 comprises in each case two insulating regions 6a and 6b at the upper or lower end of the web-shaped device 4.
  • the insulating regions 6a and 6b are connected to one another by a central region 7.
  • the central region 7 wells comprises in the illustrated embodiment each ⁇ a support member 8a and 8b, the surface at the Isolierbaus- connect 6a and 6b, respectively, and arranged between the supporting portions 8a and 8b central compression zone 9.
  • the compression zone 9 can be in the radial direction of the Ring core choke 1 compress, so in the figure 3A in the vertical direction.
  • the embodiment shown in Figures 3A and 3B storage ⁇ monitoring zone 9 has two webs 10a and 10b.
  • Each of the webs 10a and 10b has a first section IIa or Ib and a second section 12a or 12b.
  • the webs 10a and 10b are made of an elastic material and can therefore be deformed under the action of force.
  • the entire device 4 is produced as a one-piece plastic injection-molded part. Prefers If it is in the material used for a heat-resistant and flame-resistant ⁇ plastic.
  • the webs 10a and 10b are configured point-symmetrical with respect to the center of the device 4 and the center of the core hole 5 in the built-in device 4 state.
  • Their sections IIa, IIb, 12a and 12b enclose a cavity in the projection shown and form a parallelogram in the relaxed state shown in FIG. 3A.
  • the first portions IIa and IIb have a smaller material thickness than the second Materialab ⁇ sections 12a and 12b. As a result, the first portions IIa and IIb are easier to elastically deform with respect to the second portions 12a and 12b.
  • S-shaped deformable first portions 11 between the second portions 12 are arranged.
  • the compression shown in FIG. 3B has the advantage that a radial compression of the insulating regions 6a and 6b leads to a parallel displacement of the longitudinal axes in the region of the holding parts 8a and 8b, so that a movement the insulating regions 6a and 6b takes place predominantly in the radial direction .
  • the central area 7 does not buckle laterally.
  • outwardly acting force allows a tight fit of the device 4 with only two insulating regions 6 in a ring core 2 of a toroidal core choke. 1
  • the insulating portions 6 protrude in a tangential direction beyond the holding portions 8 of the central portion 7, thus establishing a desired insulating distance between the adjacent coils 3a and 3b.
  • the insulating regions 6a and 6b in the illustrated embodiment each having a cavity 13a and 13b.
  • Figure 4 shows a side view of the device 4 in the plane spanned by the axial and radial directions.
  • FIG. 5 shows a side view of a device 4 according to a second exemplary embodiment.
  • the side view ge ⁇ according to Figure 5 shows the plane spanned by the axial and radial direction of a ring core 2 level.
  • the insulating regions 6a and 6b according to the second embodiment at their end faces ⁇ each have two nose-shaped projections 15 which interlock the device 4 in the inserted state with the ring core 2, not shown in FIG.
  • the compression zone 9 exerts an elastic force on the Stirnflä ⁇ surfaces of the insulating regions 6, which leads to a locking of the ring core 2 in the recesses between the projections 15 and a separate attachment, such as bonding the device 4 with the toroidal core 2, dispensable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

L'invention concerne un dispositif (4) de séparation de potentiel destiné à être intégré au trou (5) d'un noyau toroïdal (2). Le dispositif (4) présente une zone centrale (7) et deux zones d'isolation (6) faisant saillie hors de la zone centrale (7) dans la direction radiale du trou de noyau (5), mobiles dans la direction radiale. La zone centrale (7) comporte une zone de déformation sous pression (9) présentant au moins deux premières parties (11), mutuellement parallèles, de deux entretoises (10), accouplant mécaniquement les deux zones d'isolation (6) l'une à l'autre. Chaque première partie (11) peut être déformée élastiquement en forme de S, les au moins deux premières parties (11) des deux entretoises (10) étant disposées parallèles l'une à l'autre à l'état non contraint de la zone de déformation sous pression (9). L'invention concerne également une bobine de choc à noyau toroïdal comportant un tel dispositif (4) de séparation de potentiel.
EP10778665.9A 2009-11-19 2010-11-18 Dispositif de séparation de potentiel et bobine de choc à noyau toroïdal Active EP2502243B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009054001A DE102009054001A1 (de) 2009-11-19 2009-11-19 Vorrichtung zur Potentialtrennung und Ringkerndrossel
PCT/EP2010/067759 WO2011061258A2 (fr) 2009-11-19 2010-11-18 Dispositif de séparation de potentiel et bobine de choc à noyau toroïdal

Publications (2)

Publication Number Publication Date
EP2502243A2 true EP2502243A2 (fr) 2012-09-26
EP2502243B1 EP2502243B1 (fr) 2015-02-11

Family

ID=43923572

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10778665.9A Active EP2502243B1 (fr) 2009-11-19 2010-11-18 Dispositif de séparation de potentiel et bobine de choc à noyau toroïdal

Country Status (7)

Country Link
US (1) US8841985B2 (fr)
EP (1) EP2502243B1 (fr)
JP (1) JP5701309B2 (fr)
CN (1) CN102598166B (fr)
DE (1) DE102009054001A1 (fr)
HU (1) HUE025420T2 (fr)
WO (1) WO2011061258A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013000695U1 (de) 2013-01-24 2013-01-31 Würth Elektronik eiSos Gmbh & Co. KG Trennelement für eine Ringkerndrossel und Ringkern
CN105336476B (zh) * 2014-06-03 2018-01-30 中达电子(江苏)有限公司 开关电源、emi滤波器、共模电感器及其绕线方法
DE102016206171A1 (de) 2016-04-13 2017-10-19 Würth Elektronik eiSos Gmbh & Co. KG Trennelement für eine Ringkerndrossel und Ringkerndrossel
DE102016107818B4 (de) * 2016-04-27 2018-01-25 Sma Solar Technology Ag Drosselanordnung mit einem Einsatz
DE102017214857A1 (de) * 2017-08-24 2019-02-28 Vacuumschmelze Gmbh & Co. Kg Ringkernbaugruppe, stromkompensierte Drossel und Verfahren zur Herstellung einer Ringkernbaugruppe

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60179013U (ja) 1984-05-08 1985-11-28 株式会社村田製作所 トロイダル磁心用絶縁ケ−ス
DE3782987D1 (de) * 1986-08-01 1993-01-21 Siemens Ag Potentialtrennung fuer eine ringkerndrossel.
DE19932475C2 (de) * 1999-07-12 2002-04-25 Vacuumschmelze Gmbh Induktives Bauelement
JP2003297650A (ja) 2002-04-04 2003-10-17 Hokuriku Denki Seizo Kk コモンモードチョークコイル
DE10308010A1 (de) 2003-02-25 2004-09-09 Epcos Ag Isolierteil, Ringkern, Ringkerndrossel und Verfahren zur Herstellung der Ringkerndrossel
DE102004037853A1 (de) * 2004-08-04 2006-03-16 Epcos Ag Halterung für eine Drosselspule und ein induktives Bauelement mit der Halterung
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011061258A2 *

Also Published As

Publication number Publication date
JP2013511832A (ja) 2013-04-04
WO2011061258A2 (fr) 2011-05-26
DE102009054001A1 (de) 2011-08-04
HUE025420T2 (en) 2016-04-28
WO2011061258A3 (fr) 2011-07-14
CN102598166A (zh) 2012-07-18
JP5701309B2 (ja) 2015-04-15
EP2502243B1 (fr) 2015-02-11
US8841985B2 (en) 2014-09-23
US20120274439A1 (en) 2012-11-01
CN102598166B (zh) 2015-04-22

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