EP3129993A1 - Bobine de self antiparasite - Google Patents

Bobine de self antiparasite

Info

Publication number
EP3129993A1
EP3129993A1 EP15722060.9A EP15722060A EP3129993A1 EP 3129993 A1 EP3129993 A1 EP 3129993A1 EP 15722060 A EP15722060 A EP 15722060A EP 3129993 A1 EP3129993 A1 EP 3129993A1
Authority
EP
European Patent Office
Prior art keywords
components
core
winding
windings
throttle
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Withdrawn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
EP15722060.9A
Other languages
German (de)
English (en)
Inventor
Willem Blakborn
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.)
Rosenberger Hochfrequenztechnik GmbH and Co KG
Original Assignee
Rosenberger Hochfrequenztechnik GmbH and Co KG
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 Rosenberger Hochfrequenztechnik GmbH and Co KG filed Critical Rosenberger Hochfrequenztechnik GmbH and Co KG
Publication of EP3129993A1 publication Critical patent/EP3129993A1/fr
Withdrawn legal-status Critical Current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
    • H01F27/28—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
    • H01F27/24—Magnetic 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
    • H01F27/2823—Wires
    • H01F27/2828—Construction of conductive connections, of leads
    • 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
    • H01F41/06—Coil winding
    • H01F41/08—Winding conductors onto closed formers or cores, e.g. threading conductors through toroidal cores
    • 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 throttle, in particular a suppression choke for damping common-mode parasitic currents.
  • the throttle has a core and at least two windings each revolving around the core.
  • Chokes are typically used as suppression chokes or suppression filters in high-current systems.
  • a common mode choke has several windings, which are in opposite directions flowed through by electricity, so that cancel their magnetic fields in the core of the throttle.
  • suppression chokes equally occurring interference currents can be suppressed in the outward and forward direction.
  • DC or low-frequency currents are hardly affected by the throttle.
  • Such chokes can be installed, for example, at inputs and outputs of power supplies to dampen spurious emissions.
  • Suppression chokes regularly have a closed ferrite core in ring form or in another closed geometry, which is wound by at least two windings. Each winding consists of several turns wound around the core. The windings each consist of metal winding wires such as copper wires. Especially in the case of closed cores, wrapping the core to make the throttle is time consuming and labor intensive. Furthermore, in conventional Entstördrossen the Entstör sign is often not optimal. In view of these problems, it is the object of the present invention to provide a readily manufacturable reactor, with the interference currents can be effectively suppressed.
  • At least one turn of one of the windings has two preferably rigid components which each form a winding section and which are connected to one another to form the turn.
  • the windings are not wound from a continuous winding wire, that is made of a one-piece conductor. Rather, the windings have at least two interconnected, electrically conductive components which are connected to one another to form one or more windings of the winding.
  • the components are manufactured as separate components and only connected together to form the winding.
  • the interconnected components are unlike a conventional winding wire not flexible, but preferably rigid.
  • a "rigid” (or dimensionally stable) component is understood to mean a component that can be bent or deformed only under force, for example a copper conductor with a diameter of about 2 mm can no longer be deformed by hand without exerting force and thus is a rigid component in the sense of the present invention Invention.
  • the invention is based on the knowledge that, especially in the case of a closed-loop inductor core, a winding of the core with a winding wire is particularly complex, since the winding wire must be passed through the central opening of the core at each turn.
  • the step of threading the winding wire through the core opening is also regularly problematic for winding machines.
  • suppression chokes are regularly flowed through by large currents and are therefore adapted to high currents.
  • the required large conductor cross sections reduce the flexibility of the winding wires used and make them very rigid, whereby the wrapping of the core is further complicated.
  • At least one of the turns consists of two interconnected components, threading through the core opening is no longer necessary for producing the throttle according to the invention, which reduces the production outlay. Rather, the components forming the winding sections are already produced in their final shape, so that no bending or deformation of a component is required during the winding production. Furthermore, it has been found that winding around the core with a wire often results in winding deviations or winding faults which can impair the interference suppression effect of the throttle.
  • the manufacture of the throttle according to the invention can be further simplified if the components forming the winding sections rotate around the core in each case like an arc by approximately 180 °. In this case, exactly two components form a circumferential winding turn.
  • two, three or more turns of each of the two windings comprise two interconnected components.
  • each winding circulating through 360 ° can consist of exactly two components, which in each case circulate around the core by 180 ° and are connected to one another to form the entire winding.
  • the components forming the winding sections are identically shaped. In this case, the windings can each be made from a predetermined number of identical components.
  • a total of six identical components can be connected to one another, which are each formed as winding sections that rotate through 180 °.
  • the composability of the whole winding of a number of identical components further reduces the manufacturing costs.
  • a dimensionally stable winding, which permanently retains its course, can then be produced if the components forming the turn sections are connected to one another in a positive, positive, and / or material-locking manner.
  • the components are preferably made of metal, in particular copper, to ensure good conductivity. They can each have the form of C or U-shaped brackets. Bügeiförmige components can be produced from a metal strand with little effort.
  • the brackets may each be arcuate, in particular approximately half-ring-shaped, so that the connection of several brackets leads to a helical winding. Such brackets are particularly suitable for a toroidal core.
  • the bracket can be U-shaped with, for example, rounded corners whose shape is adapted to the core cross section.
  • the core can be sandwiched between the free ends of the stirrups. The free ends may extend parallel to each other at least in a front portion, which facilitates connection to the free ends of adjacent stirrups.
  • the brackets preferably have a cross-sectional area of more than 10 mm 2 , in particular more than 20 mm 2 and preferably less than 200 mm 2 , in particular less than 100 mm 2 .
  • Conductors with such a cross-sectional area are designed for a current of more than 100 A, in particular 150 A or more.
  • large stirrup diameters make the stirrups particularly rigid, as a result of which deviations from the intended course of the winding can be reliably prevented.
  • Such large conductor cross sections are not hindering the winding production of the reactor according to the invention for the reasons mentioned above, unlike conventional chokes.
  • each of the stirrups has a first free end formed as an insertion end with an insertion projection and a second free end formed as a receiving end with a receiving recess formed complementary to the insertion projection.
  • the insertion ends of the bracket are respectively pressed into the receiving recesses of the winding each continuing bracket.
  • a pressing process is particularly time-saving, especially when all the brackets that make up the two windings are pressed simultaneously, so that a single pressing step for the winding production is sufficient.
  • Two components pressed into each other engage each other particularly stably and permanently. Deviations from the intended winding course are therefore excluded if the clamps to be pressed together are correctly aligned with each other before the pressing process.
  • Each component forming a winding section is preferably flat and extends in a component plane, wherein the component planes of the individual components with the component planes of the respectively adjacent components, which continue the winding in each case, include a predetermined angle.
  • the winding course of the windings in a plan view may be substantially zigzag.
  • the component planes of each two interconnected components enclose an angle of more than 10 ° and less than 80 °, in particular more than 20 ° and less than 60 °.
  • the angles can be arranged varying.
  • the angles can be adapted to the cross-sectional area of the components forming the winding sections.
  • the angles of the first winding each correspond to the angles of the second winding.
  • a good interference suppression effect can be achieved if the core consists of a ferromagnetic material, in particular of a ferrite material.
  • the core has an annular course and is particularly preferably toroidal.
  • Other core shapes such as a D-shape, E-shape, frame shape, etc. are conceivable.
  • the two windings rotate in opposite directions to the core. They may each have two or more, in particular three, four or five turns.
  • the invention relates to a method for producing a throttle according to the invention, in particular a suppression choke with the following method steps: arranging bow-shaped lower components in bracket holding portions of a first holder, arranging bow-shaped upper components in Bügelhalteabroughen a second holder, optionally arranging a core between the first holder and the second holder and approaching the first holder to the second holder, wherein the lower components and the upper components are connected to each other, so that two preferably the core each multiple-circumferential windings are formed from the Windungsabroughen.
  • Each bow-shaped component preferably has two free ends.
  • the first free end of an upper member is connected to the second free end of the lower axial direction continuing member and the second free end of the upper member is connected to the first free end of the winding continuing in the axial direction lower component connected.
  • the first free end of a lower member is connected to the second free end of the winding continuing in the axial direction upper member and the second free end of the lower member to the first free end of the winding connected against the axial direction continuing component.
  • the first component in the axial direction and the last component in the axial direction of each winding is connected to a further component only at one of the two free ends. In this way, the juxtaposed components form a helical coil that orbits the core.
  • the step of approaching the lower components to the upper components is sufficient to produce the throttle according to the invention.
  • the exposed ends of the lower components are pressed onto the exposed ends of the upper components.
  • the core provided with the windings is encapsulated with a plastic material and is then preferably installed in an electrical unit, such as a power supply unit or a battery unit.
  • Fig. 1 is a schematic sketch of a Entstördrossel invention in a plan view.
  • Fig. 2 is a schematic sketch of a Entstördrossel invention in a perspective view
  • , 3 shows a component for producing a winding of a suppression choke according to the invention in a sectional view.
  • a suppression choke 10 according to the invention is shown in a plan view.
  • the suppression choke 10 has a substantially toroidal core 20, such as a ferrite core or iron core around which two counter-rotating windings 30, 32 are wound.
  • the reactor according to the invention can also have only one or more than two windings.
  • Each of the windings 30, 32 consists of three completely revolving turns 33, 34, 35.
  • the windings 30, 32 may also have more or less than three turns, for example two, four or five turns.
  • a winding does not necessarily have an integer number of turns.
  • the two windings 30, 32 are wound in opposite directions on opposite sides of the core 20 in such a way that in particular high-frequency interference radiation and other interference in the two windings can be effectively suppressed.
  • the individual turns 33, 34, 35 each consist of two identically shaped components 40, 42 in the form of brackets 50, which respectively circulate the core in an arc-like manner by approximately 180 °, so that two connected components form a completely circumferential turn.
  • at least one component orbits the core by less than or more than 180 °.
  • not all components are identically shaped.
  • the components arranged on the one core side (lower components 42) at least in sections have a different shape than the components arranged on the other core side (upper components 40).
  • each winding 30, 32 has three windings and thus six components 40, 42.
  • the two windings 30, 32 consist of twelve identically shaped components, one of which is shown in Fig. 3 in cross section.
  • the components 42, 44 are each dimensionally stable or rigid. They may consist of a rod-shaped metal conductor, such as a copper conductor, which may become a C or U conductor. Shape is curved.
  • the cross-sectional area of the components is about 25 mm 2 , wherein larger or smaller cross-sectional areas can be used as needed. Through a copper conductor with a cross-sectional area of about 25 mm 2 , currents between 100 A and 150 A can flow, without the conductor being heated or damaged.
  • the components 40, 42 are formed dimensionally stable, their accidental deformation or bending during the wrapping of the core can be avoided.
  • the connection points between the individual components are preferably set so stable that no mutual relative movement of the connected components is possible after making the connection.
  • the winding of a throttle according to the invention then permanently has the intended course and is particularly dimensionally stable.
  • the components 40, 42 in the illustrated exemplary embodiment of the invention are substantially U-shaped. They have two free ends, which are designed for connection to the winding respectively continuing, identically shaped components 40, 42. Between the two free ends of the core 20 passes.
  • the connecting plane, in which the components are each connected to the winding continuing components corresponds to the running through the center of the core opening radial plane.
  • each component 40 has an insertion projection 54, which can project from the first front surface of the component 40 in the manner of a pencil.
  • each component 40 has a receiving recess 58 which is complementary to the pin-shaped insertion projection 54 in the second front surface of the component 40 and into which the insertion projection 56 of a like-shaped second component 42, the Winding continues, can be pressed. In this way, a frictional connection of the components 40, 42 for forming a turn is possible.
  • the U-shaped curved components are each in a component plane.
  • the component planes of the components forming the windings can be seen particularly clearly in FIG. 1.
  • the components to be joined together are each aligned in such a way before pressing that the component planes of adjacent components each one predetermined angle ⁇ , ⁇ ', ⁇ ", which is preferably greater than 20 ° and less than 60 °, thereby resulting in the recognizable in Fig. 1 zigzag line, which is formed by the juxtaposed upper and lower Windungshdon "a” and "a” are not necessarily the same size, especially in the case of an annular core.
  • the angles between the component planes of opposing components of the first winding 30 and the second winding 32 correspond to one another.
  • the predetermined angular sequence ⁇ , ⁇ ', a is determined depending on the core shape, the conductor cross-section and the number of turns per winding so that a preferably uniform winding is formed, which is particularly well and stable adapted to the core, without the
  • the advantage of a fixed angular sequence ⁇ , a ', a is the exact reproducibility of the windings for particularly good interference damping by the suppression choke.
  • the throttle 10 according to the invention can be manufactured as follows: First, bow-shaped lower components are arranged in strap holding sections of a first holder and bow-shaped upper components are arranged in strap holding sections of a second holder.
  • the components 40, 42 forming the winding sections are each held in a predetermined relative position and relative angular position, in which the components 40, 42 are to be arranged relative to one another even after the windings 30, 32 have been formed.
  • the holders may be part of an assembly tool having, for example, receiving plates with recesses for receiving the components.
  • the free ends of the lower components 42 (insertion end 52 and receiving end 56) are exposed so that they can be pressed onto the also exposed free ends of the upper components 40.
  • the core 20 is disposed between the first holder and the second holder.
  • the first holder and the second holder are then brought closer to one another, wherein the lower components 42 and the upper components 40 are connected to each other by compression, so that two windings 30, 32 that rotate around the core 20 are formed from the turn portions.
  • the insertion projections of the components dip into the receiving recesses of the respectively next components, so that a frictional connection of the components takes place.
  • the suppression choke with a Overmolded plastic material and possibly installed in an electrical unit such as a HV battery.
  • the winding course can be permanently fixed mechanically. On the other hand, this ensures that the individual turns do not touch each other and are electrically insulated from one another.

Landscapes

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

Abstract

L'invention concerne une bobine de self (10), en particulier une bobine de self antiparasite pour atténuer les courants perturbateurs de mode commun, laquelle comprend un noyau (20) et au moins deux enroulements (30, 32) entourant chacun plusieurs fois le noyau (20), au moins un enroulement (33, 34, 35) parmi les enroulements (30, 32) présentant deux éléments rigides (40, 42) qui forment chacun une partie d'enroulement et qui sont assemblés pour former l'enroulement (33).
EP15722060.9A 2014-04-08 2015-03-31 Bobine de self antiparasite Withdrawn EP3129993A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014005118.8A DE102014005118A1 (de) 2014-04-08 2014-04-08 Entstördrossel
PCT/EP2015/000695 WO2015154858A1 (fr) 2014-04-08 2015-03-31 Bobine de self antiparasite

Publications (1)

Publication Number Publication Date
EP3129993A1 true EP3129993A1 (fr) 2017-02-15

Family

ID=53175401

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15722060.9A Withdrawn EP3129993A1 (fr) 2014-04-08 2015-03-31 Bobine de self antiparasite

Country Status (9)

Country Link
US (1) US20170018350A1 (fr)
EP (1) EP3129993A1 (fr)
JP (1) JP2017510996A (fr)
KR (1) KR20160142824A (fr)
CN (1) CN106165034A (fr)
CA (1) CA2941891A1 (fr)
DE (1) DE102014005118A1 (fr)
TW (1) TW201539496A (fr)
WO (1) WO2015154858A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6631584B2 (ja) 2017-04-20 2020-01-15 株式会社村田製作所 インダクタ及びインダクタの製造方法
EP3441034A1 (fr) * 2017-08-09 2019-02-13 National University of Ireland Galway Sonde d'ablation à micro-ondes
FR3090991A1 (fr) * 2018-12-19 2020-06-26 Commissariat A L'energie Atomique Et Aux Energies Alternatives Ensemble inductif
DE202021104096U1 (de) * 2020-11-20 2021-08-09 Yun-Kuang Fan Induktive Hybridvorrichtung

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DE28757C (de) * H. LEPLAY in Paris Verfahren, die Hydroxyde des Bariums und Strontiums darzustellen und zu regeneriren und dieselben zur Extraktion von Zucker aus Syrup, aus Melasse und aus Rübensaft zu verwenden
DE162466C (fr) *
DE975899C (de) * 1941-05-17 1962-11-29 Aeg Schaltdrossel mit hochwertigem ferromagnetischem Ringkern fuer Kontaktumformer
CH290733A (de) * 1950-05-26 1953-05-15 Siemens Ag Drosselspule.
DE1042746B (de) * 1955-12-08 1958-11-06 Siemens Ag Schaltdrosselspule
FR1388880A (fr) * 1963-12-30 1965-02-12 Perfectionnements apportés à la constitution des circuits électriques, notamment pour autotransformateurs
US4649639A (en) * 1982-05-21 1987-03-17 Allied Corporation Method of building toroidal core electromagnetic device
JPS63272020A (ja) * 1987-04-30 1988-11-09 Harada Kogyo Kk トロイダルコイル装置およびその製造方法
JPH0590035A (ja) * 1991-09-25 1993-04-09 Tokin Corp 組立型チヨークコイル
DE4136176A1 (de) * 1991-11-02 1993-05-06 Asea Brown Boveri Ag, Baden, Aargau, Ch Toroiddrossel
JPH06302437A (ja) * 1993-04-13 1994-10-28 Mitsubishi Electric Corp 電力用コイル部品
DE29511040U1 (de) * 1995-07-07 1995-09-14 Theo Benning Elektrotechnik und Elektronik GmbH & Co. KG, 46397 Bocholt Drossel mit Kern für hohe Ströme
JPH10106861A (ja) * 1996-09-30 1998-04-24 Soshin Denki Kk ノイズフィルタ
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AT501073B1 (de) * 2004-11-19 2007-05-15 Siemens Ag Oesterreich Induktives schaltungselement und verfahren zur montage eines induktiven schaltungselements
TWI260652B (en) * 2005-11-23 2006-08-21 Delta Electronics Inc Inductor and fabricating method thereof
JP4532401B2 (ja) * 2005-12-21 2010-08-25 Ｔｄｋ株式会社 ＮｉＣｕＺｎ系フェライトおよびそれを用いた電子部品
TW200929277A (en) * 2007-12-19 2009-07-01 Delta Electronics Inc Composite inductor

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Also Published As

Publication number Publication date
CN106165034A (zh) 2016-11-23
US20170018350A1 (en) 2017-01-19
WO2015154858A1 (fr) 2015-10-15
KR20160142824A (ko) 2016-12-13
CA2941891A1 (fr) 2015-10-15
TW201539496A (zh) 2015-10-16
JP2017510996A (ja) 2017-04-13
DE102014005118A1 (de) 2015-10-08

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