EP0582218A1 - Bobine d'inductance pour un convertisseur - Google Patents

Bobine d'inductance pour un convertisseur Download PDF

Info

Publication number
EP0582218A1
EP0582218A1 EP93112152A EP93112152A EP0582218A1 EP 0582218 A1 EP0582218 A1 EP 0582218A1 EP 93112152 A EP93112152 A EP 93112152A EP 93112152 A EP93112152 A EP 93112152A EP 0582218 A1 EP0582218 A1 EP 0582218A1
Authority
EP
European Patent Office
Prior art keywords
winding
choke coil
cooling
coil according
carriers
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
EP93112152A
Other languages
German (de)
English (en)
Other versions
EP0582218B1 (fr
Inventor
Wilhelm KRÄMER
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.)
ABB Patent GmbH
Original Assignee
ABB Patent GmbH
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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0582218A1 publication Critical patent/EP0582218A1/fr
Application granted granted Critical
Publication of EP0582218B1 publication Critical patent/EP0582218B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F37/00—Fixed inductances not covered by group H01F17/00
    • 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
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/16—Water cooling

Definitions

  • the invention relates to a choke coil for a converter according to the preamble of claim 1.
  • Such a choke coil for a converter is known from DE 40 08 424 A1.
  • a choke coil for a converter with a choke winding wound on a cylindrical winding support is proposed, in which the winding support consists of at least two rod-shaped or tubular winding support sections, each of which is connected to one another via connecting parts.
  • the winding carrier sections each carrying the partial windings of the choke winding are arranged in such a way that the magnetic fields generated partially cancel or weaken one another.
  • this choke coil is not suitable for liquid cooling.
  • a water-cooled choke coil embedded in casting resin (potting compound) for converter systems is known from DE 37 43 222 C2.
  • the coil is in an annular container Arranged and sealed from non-magnetic material, with materially attached grommets are provided on the container lid for carrying out the electrical supply lines, and the space between the coil and the container wall is filled with the sealing compound for support and as a thermal bridge.
  • the coil is arranged with its container in a boiler through which the cooling water flows, wherein water gaps are arranged in spaces between the annular container and magnetic parts of the choke coil or between the latter, the boiler and a packing element arranged therein such that they provide a helical guide for the cooling water around the Create an annular container.
  • the invention has for its object to provide a choke coil for a converter of the type mentioned, which can be cooled with hot water and which emits only a small external magnetic field.
  • the inductor can be cooled efficiently and is of a very simple construction.
  • the choke coil which is constructed according to the toroid principle, is vibration-proof and robust and, moreover, very compact, which saves weight and space, which is particularly important for a rail vehicle when installing the choke coil in an encapsulated, water-cooled converter module. Because the magnetic fields emitted to the outside by the choke coil are very are low, only relatively small losses are generated in the metal housing walls of the converter module.
  • FIG. 1 shows a side section through a first variant of a choke coil.
  • Two tubular winding supports 1, 2 arranged in parallel and directly next to one another can be seen, which serve on the one hand for the application of the winding 3 and on the other hand as a heat sink for the internal cooling of the choke.
  • the winding carriers 1, 2 consist, for example, of a thin-walled plastic tube with a high mechanical strength, long-term very good insulation properties and a sufficiently good thermal conductivity.
  • a GRP pipe with cast resin or a polyamide pipe is suitable. Variants are shown in Figures 3 and 4.
  • Each winding support 1 or 2 has an electrical connection side 1a or 2a at one end and a cooling connection side 1b or 2b at its other end.
  • the winding 3 consisting of two partial windings begins, for example on the electrical connection side 1a, extends helically to the cooling connection side 1b, changes from there to the cooling connection side 2b and continues helically to the electrical connection side 2a.
  • the winding strand winding around the individual winding carriers can consist of a large number of individual wires which are electrically insulated from one another, which reduces the electrical losses during operation of the inductor. In addition, however, it is also possible to form the winding in one piece as an aluminum casting.
  • a bandage 4 around the winding strand has a multiple function and is firstly an elastic buffering that prevents stress or shock cracks, secondly serves to decouple the winding heating to the outer casting 5 described in more detail below, and thirdly increases the mechanical strength.
  • the encapsulation 5, which is preferably formed from cast resin, envelops the winding 3 on its outwardly directed jacket and end faces and thus ensures the electrical insulation of the winding 3 from the outside. So that the temperatures at the non-cooled winding start 3a and winding end 3b do not rise to high values, there are provided large cross-sectional enlargements of the winding. This is taken into account by appropriate design of the end fittings 6 and 7 and solved structurally. In the case of a winding formed as an aluminum casting, the end fittings 6, 7, which are enlarged in cross section, can be cast simultaneously with the winding strand. To ensure the short-circuit strength, the end fittings 6, 7 are connected to the winding carriers 1, 2 via screw connections 8, 9.
  • the casting 5 holds the winding 3 and end fittings 6, 7 together.
  • the "shrinking force" of the casting 5 also ensures the pressure required for pressing the winding onto the winding carrier, which results in a good heat transfer from the winding to the winding carrier results.
  • a magnetic shielding cap 10a, 11a is arranged in each of the external spaces formed between the two winding carriers 1, 2. These magnetic shielding caps 10a, 11a reduce the edge-side magnetic fields emitted from the choke coil, so that only relatively small electrical losses are generated in the metal housing walls of a converter module surrounding the choke.
  • the magnetic shield caps 10a, 11a can, for example, be mounted (screwed) on webs 12a, 13a, which are part of the encapsulation 5 and additionally contribute to the short-circuit strength of the choke coil.
  • the choke coil has internal cooling using coolant - preferably process water.
  • the choke coil according to the first variant is mounted on a cooling rail 15 on the cooling connection side with the interposition of seals 14.
  • the cooling rail 15 has a coolant flow 16 and separate coolant returns 17a, 17b.
  • the coolant reaches the throttle coil via immersion tubes 18a, 18b (water guide tubes) connected to the coolant flow 16 and projecting deeply into the interior of the winding support 1 and flows through return openings 19a, 19b to the coolant return 17a, 17b.
  • This dip tube / return opening arrangement is provided in both winding carrier interiors.
  • the further ends of the winding carriers 1, 2 - the electrical connection ends 1a, 2a - are hydraulically closed in the first variant by cover 26 with cover sealing ring 27.
  • cover 26 with cover sealing ring 27.
  • the waste heat produced by the winding 3 during operation and conducted via the winding carriers 1, 2 is released to the liquid via the inner lateral surface of the carrier 1, 2.
  • A can Temperature jump from approx. 150 ° C on winding 3 to approx. 70 ° C on the inner surface of the carrier 1, 2 occur.
  • the gaps 28a, 28b which result between the inner lateral surface of the winding carriers 1, 2 and the outer lateral surface of the immersion tubes 18a, 18b can be narrow for guiding the coolant.
  • the installation of the choke coil within a converter module is very simple, since only a 2-point bearing is necessary on both end faces.
  • the end fittings 6, 7 on the electrical connection sides 1a, 2a which are provided with screw connections for this purpose, serve as the first fastening points.
  • the screw connections between the cooling rails 15 and the cooling connection sides 1b, 2b of the winding supports serve as second fastening points.
  • FIG. 2 shows a section near a connection side of the choke coil.
  • the winding carriers 1, 2, the winding 3, the casting 5 and the magnetic shielding caps 10a, 10b can be seen.
  • the position of the immersion tubes 18a, 18b within the interior of the winding carriers 1, 2 and the gaps 28a, 28b are indicated.
  • the winding carriers consist of composite tubes with an inner metal tube 20 with electrical insulation 21 applied.
  • the electrical insulation 21 consists, for example, of cast resin with aluminum nitride as filler. The heat dissipation is improved by the addition of this filler.
  • the winding 3 is applied to the electrical insulation 21.
  • This variant has the advantage that the cooling liquid does not come into direct contact with the electrical insulation. Furthermore, the composite pipe is mechanically very stable.
  • FIG. 1 A further alternative winding carrier design is shown in FIG.
  • the winding carriers consist of porcelain or ceramic tubes 22.
  • This variant also has the advantage that the cooling liquid (process water) does not come into contact with an organic insulating agent. Due to the good thermal conductivity of porcelain or ceramic, the wall thickness of the tubes 22 can be relatively thick, which leads to a mechanically very stable construction. With this variant, temperature differences of up to 90 ° C are possible.
  • FIG. 5 shows a section through a choke coil with additional external cooling.
  • Winding carriers 1, 2 with winding 3 and bandage 4 can be seen.
  • An insulating sleeve 23 serves for the external electrical insulation of the winding.
  • a cooling jacket 25 for the coolant flow between the insulating jacket 23 and jacket 24 is formed by means of a further outer jacket 24.
  • the coolant enters the cavities 33 of the winding carriers 1, 2, for example, via a flow opening from the coolant feed of the cooling rail and flows back into the coolant return of the cooling rail via the gaps 28a, 28b and the cooling jacket 25.
  • the internal cooling of the choke coil by means of dip tubes 18a, 18b and gaps 28a, 28b can also be seen.
  • This variant of a choke coil can be used with very powerful choke coils in which internal cooling alone is not sufficient to dissipate heat.
  • FIG. 6 shows a section through a gap formed between winding support 1 and dip tube 18a. It can be seen that the gap is divided into three gap segments 28a ', 28a'',28a''' parallel to the main axis of the choke coil by means of three separating webs 29. This measure prevents an annular electrical Can of course form a conductive water jacket and is of course also used in the gap 28b and in the cooling jacket 25.
  • FIG. 7 shows a second variant of a choke coil.
  • a choke coil 30 with end fittings 6, 7 for the electrical connection can be seen, in which the electrical connection side is also a cooling connection side, i.e. the choke coil 30 is penetrated by two coolant lines 31, 32, which emerge from the choke coil on both end faces, the winding 3 of the choke coil enclosing the two coolant lines 31, 32.
  • Each of the two coolant lines 31, 32 is double-walled, so that the outer jacket the winding support 1 and the inner jacket the dip tube, e.g. 18a.
  • the gap between the two jackets, e.g. 28a is used for throttle cooling, while the cavity 33 in the interior of the inner jacket advantageously serves for the transport of coolant.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Transformer Cooling (AREA)
EP93112152A 1992-08-04 1993-07-29 Bobine d'inductance pour un convertisseur Expired - Lifetime EP0582218B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4225677 1992-08-04
DE4225677A DE4225677A1 (de) 1992-08-04 1992-08-04 Drosselspule für einen Stromrichter

Publications (2)

Publication Number Publication Date
EP0582218A1 true EP0582218A1 (fr) 1994-02-09
EP0582218B1 EP0582218B1 (fr) 1995-11-02

Family

ID=6464770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93112152A Expired - Lifetime EP0582218B1 (fr) 1992-08-04 1993-07-29 Bobine d'inductance pour un convertisseur

Country Status (2)

Country Link
EP (1) EP0582218B1 (fr)
DE (2) DE4225677A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013014031A1 (fr) * 2011-07-22 2013-01-31 Siemens Aktiengesellschaft Agencement d'enroulement comprenant des enroulements de bobine et un système de canaux de refroidissement
CN112614664A (zh) * 2020-12-11 2021-04-06 华中科技大学 一种用于特种集成电源系统中的重频水冷电感及制作方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007014360A1 (de) * 2007-03-26 2008-10-02 Abb Technology Ag Abstandhalter für Wicklungen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040262A1 (fr) * 1980-05-16 1981-11-25 Westinghouse Electric Corporation Bobine de réactance comprenant des enroulements en forme de bandes
DE3743222A1 (de) * 1987-12-19 1989-06-29 Asea Brown Boveri Gekuehlte drosselspule fuer stromrichteranlagen
US4896130A (en) * 1987-11-16 1990-01-23 Ermilov Igor V Magnetic system
DE4008424A1 (de) * 1990-03-16 1991-09-19 Asea Brown Boveri Drosselspule fuer einen stromrichter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH297561A (de) * 1952-02-06 1954-03-31 Oerlikon Maschf Flüssigkeitsgekühlter Transformator.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040262A1 (fr) * 1980-05-16 1981-11-25 Westinghouse Electric Corporation Bobine de réactance comprenant des enroulements en forme de bandes
US4896130A (en) * 1987-11-16 1990-01-23 Ermilov Igor V Magnetic system
DE3743222A1 (de) * 1987-12-19 1989-06-29 Asea Brown Boveri Gekuehlte drosselspule fuer stromrichteranlagen
DE4008424A1 (de) * 1990-03-16 1991-09-19 Asea Brown Boveri Drosselspule fuer einen stromrichter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013014031A1 (fr) * 2011-07-22 2013-01-31 Siemens Aktiengesellschaft Agencement d'enroulement comprenant des enroulements de bobine et un système de canaux de refroidissement
CN112614664A (zh) * 2020-12-11 2021-04-06 华中科技大学 一种用于特种集成电源系统中的重频水冷电感及制作方法

Also Published As

Publication number Publication date
DE59300846D1 (de) 1995-12-07
EP0582218B1 (fr) 1995-11-02
DE4225677A1 (de) 1994-03-10

Similar Documents

Publication Publication Date Title
EP0456169B1 (fr) Moteur électrique alimenté par convertisseur de fréquence
EP1400002B1 (fr) Moteur electrique a serpentin de refrigeration
DE4132153C2 (de) Zündspuleinheit für eine Brennkraftmaschine
EP2398132B1 (fr) Groupe motopompe
DE102011013684B4 (de) Elektrisches Bauteil mit wenigstens einer in einer Vergussmasse angeordneten elektrischen Verlustleistungsquelle und einer Kühleinrichtung
EP0075796A1 (fr) Transformateur avec enroulements encastrés dans de la résine moulée
EP1772877B1 (fr) Transformateur MF avec meilleure dissipation thermique
DE102011076227A1 (de) Thermische Anbindung induktiver Bauelemente
DE102020109209A1 (de) Leistungserzeugende Komponente einer elektrischen Rotationsmaschine und elektrische Rotationsmaschine
DE3522740A1 (de) Ringkerntransformator oder -drossel
DE102018215522A1 (de) Zwischenkreiskondensator für eine Leistungselektronikanordnung sowie Leistungselektronikanordnung mit dem Zwischenkreiskondensator
EP0582218B1 (fr) Bobine d'inductance pour un convertisseur
EP0459326B1 (fr) Bobine de self refroidie par liquide
EP0446837A1 (fr) Transformateur traversant
DE3743222C2 (fr)
WO2012085242A2 (fr) Système d'entraînement comportant des équipements destinés à empêcher les perturbations électromagnétiques
DE202013103599U1 (de) Elektrisches Bauteil
DE102004015801B4 (de) Anlage zur Herstellung von Kabeln mit speziell ausgebildetem Teleskoprohr
DE102021209350B3 (de) Röntgenröhre mit einem Isolationskörper, der einen Gusskörper umfasst
EP0124809B1 (fr) Composant inductif
DE102015207769A1 (de) Elektrische Maschine mit Fluidkühlung an der Spulenwicklung
DE4202021C2 (de) Brauchwassergekühlte Drosselspule
DE202022105515U1 (de) Ein Gehäuse für magnetische Elemente
DE102020118143A1 (de) Leistungserzeugende Komponente einer elektrischen Rotationsmaschine, Verfahren zur Herstellung einer leistungserzeugenden Komponente und elektrische Rotationsmaschine
DE19843087A1 (de) Induktor zur Erzeugung eines elektromagnetischen Wechselfeldes

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19940627

17Q First examination report despatched

Effective date: 19941019

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.R.L.

REF Corresponds to:

Ref document number: 59300846

Country of ref document: DE

Date of ref document: 19951207

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19960106

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19980624

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990729

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19990729

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20020624

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020626

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040203

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040331

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050729