EP0709864A2 - Transformateur encapsulé en résine coulée - Google Patents

Transformateur encapsulé en résine coulée Download PDF

Info

Publication number
EP0709864A2
EP0709864A2 EP95116433A EP95116433A EP0709864A2 EP 0709864 A2 EP0709864 A2 EP 0709864A2 EP 95116433 A EP95116433 A EP 95116433A EP 95116433 A EP95116433 A EP 95116433A EP 0709864 A2 EP0709864 A2 EP 0709864A2
Authority
EP
European Patent Office
Prior art keywords
bore
connection
cast resin
wire
transformer according
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
EP95116433A
Other languages
German (de)
English (en)
Other versions
EP0709864A3 (fr
EP0709864B1 (fr
Inventor
Rudolf Dedelmahr
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP0709864A2 publication Critical patent/EP0709864A2/fr
Publication of EP0709864A3 publication Critical patent/EP0709864A3/xx
Application granted granted Critical
Publication of EP0709864B1 publication Critical patent/EP0709864B1/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
    • H01F5/00—Coils
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads
    • 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
    • H01F27/02—Casings
    • H01F27/022—Encapsulation
    • 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

Definitions

  • the present invention relates to a cast resin transformer with at least one primary winding, at least one secondary winding and at least one with cast-in connection element, which is connected in an electrically conductive manner to the primary winding or the secondary winding via a connecting wire and to which, e.g. by means of a screw connection, a transformer-external connecting line can be connected, the connecting element having a hole for receiving the connecting wire and the connecting wire being inserted into the hole (DE-PS 29 04 746).
  • connection elements in which in a casting compound together with the winding cast connection elements are mechanically fixed and electrically conductive via conductor rod to the winding in that these conductor rods have deformations in the manner of a knurling.
  • the connecting wires are also connected to the conductor bars via solder joints.
  • Similar transformers are also manufactured and sold, for example, by Trafo-Union GmbH under the name GEAFOL cast resin transformers.
  • the object of the present invention is to establish a simple, reliable and inexpensive connection between the connecting wire and the connecting element.
  • connection technology used allows one reliable operation of the transformer. There is no aging damage like a solder joint.
  • the deformation is advantageously designed as a bulge.
  • the bulge can be caused by upsetting, which is easy to manufacture.
  • the bore can be designed as a blind bore or alternatively as a through bore.
  • the connecting element can advantageously have a threaded bore for receiving a screw for connecting the connecting line, the bore being arranged radially or axially to the threaded bore. This allows the cast resin transformer to be connected to the network in a convenient manner.
  • the threaded bore and / or the bore can advantageously be arranged eccentrically, so that a lateral connection is possible.
  • the connecting element is preferably made of brass, the connecting wire preferably consisting of copper. This ensures good contact.
  • a primary-side three-phase network with the phases R, S and T or a secondary-side three-phase network with the phases U, V and W can be connected to the connection elements 6 and 8 via transformer-external connecting lines 9, 10.
  • the entire transformer including transformer core 4, windings 1, 2, connecting elements 6, 8 and connecting wires 5, 7 is cast in casting resin 11. So only the connection elements 6, 8 are accessible from the outside.
  • the windings can also form individually cast structural units which are arranged on a common, non-cast core.
  • connection elements 6, 8 are designed as hexagon cast nuts.
  • the connection elements 6, 8 each have a threaded bore 12 into which a screw (not shown in FIG. 2) can be screwed.
  • a screw not shown in FIG. 2
  • the transformer-external connecting lines 9, 10 are connected to the transformer.
  • the connection elements 6, 8 also each have a bore 13, which in the cast-in state of the connection elements 6, 8 is directed inwards and serves to accommodate the connection wires 5, 7.
  • the connecting wire 5 inserted into the bore 13 has a bulge 14 in the area of the connecting element 6.
  • the bulge 14 can e.g. to be caused by upsetting. Due to the bulge 14, the connecting wire 5 is mechanically fixed and electrically conductively connected to the connecting element 6.
  • the connection is both gas and liquid tight. It can absorb tensile forces and acts as a protection against torsion.
  • the bulge 14 can be designed differently depending on the configuration of the bore 13. If the bore 13 is a simple bore, the bulge 14 is at the entrance to the bore 13 arranged. If the bore is half open or has a puncture, the bulge 14 can alternatively or additionally also be arranged in the semi-open region of the bore 13 or in the puncture region of the bore 13.
  • the bore 13 is arranged axially to the threaded bore 12, both the threaded bore 12 and the bore 13 being arranged outside the line of symmetry of the pouring nut 6, that is to say eccentrically. As a result, the pouring nut 6 can be kept compact.
  • the bore 13 is designed as a blind bore in the present case.
  • the bore 13 could also be designed as a through bore.
  • FIG. 3 shows a further embodiment of the connection between connecting wire 7 and connecting element 8.
  • the bore 13 is not arranged axially but radially to the threaded bore 12.
  • the bore 13 is also formed as a through bore.
  • it could also be designed as a blind bore.
  • the invention described above is particularly advantageous when the connecting element 6, 8 is made of brass and the connecting wire 5, 7 is made of copper. With this combination in particular, flux is required for soldering, which can only be removed again with great effort. However, other working methods such as welding or squeezing are not possible for other technical reasons.
  • the present invention therefore enables great cost savings, in particular in the combination "brass for casting nut and copper for connecting wire".
  • other material combinations for example in connection with aluminum, are also possible.
  • they are described above Features can be combined in any way within the scope of professional skill, without leaving the path of the present idea.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Insulating Of Coils (AREA)
  • Coils Or Transformers For Communication (AREA)
EP95116433A 1994-10-28 1995-10-18 Transformateur encapsulé en résine coulée Expired - Lifetime EP0709864B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4438653 1994-10-28
DE4438653A DE4438653C1 (de) 1994-10-28 1994-10-28 Gießharztransformator

Publications (3)

Publication Number Publication Date
EP0709864A2 true EP0709864A2 (fr) 1996-05-01
EP0709864A3 EP0709864A3 (fr) 1996-06-05
EP0709864B1 EP0709864B1 (fr) 1999-01-13

Family

ID=6531985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95116433A Expired - Lifetime EP0709864B1 (fr) 1994-10-28 1995-10-18 Transformateur encapsulé en résine coulée

Country Status (4)

Country Link
EP (1) EP0709864B1 (fr)
AT (1) ATE175806T1 (fr)
DE (2) DE4438653C1 (fr)
ES (1) ES2127451T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012123341A3 (fr) * 2011-03-11 2012-12-20 REO TRAIN TECHNOLOGIES GmbH Composant électrique comportant au moins une source de dissipation de puissance électrique disposée dans un matériau d'enrobage et un dispositif de refroidissement

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838372A (en) 1971-10-29 1974-09-24 Motorola Inc Magnetic pickup assembly
DE2904746A1 (de) 1979-02-08 1980-08-28 Smit Transformatoren Bv Wicklung fuer einen luftgekuehlten trockentransformator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE406685C (de) * 1923-09-13 1925-07-16 Wolfgang Bauer Klemme fuer elektrische Leitungen
DE3743222A1 (de) * 1987-12-19 1989-06-29 Asea Brown Boveri Gekuehlte drosselspule fuer stromrichteranlagen
DE9114654U1 (de) * 1991-11-25 1992-04-30 Elektro-Kern GmbH & Co KG, 7990 Friedrichshafen Magnetspule

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838372A (en) 1971-10-29 1974-09-24 Motorola Inc Magnetic pickup assembly
DE2904746A1 (de) 1979-02-08 1980-08-28 Smit Transformatoren Bv Wicklung fuer einen luftgekuehlten trockentransformator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012123341A3 (fr) * 2011-03-11 2012-12-20 REO TRAIN TECHNOLOGIES GmbH Composant électrique comportant au moins une source de dissipation de puissance électrique disposée dans un matériau d'enrobage et un dispositif de refroidissement

Also Published As

Publication number Publication date
ES2127451T3 (es) 1999-04-16
EP0709864A3 (fr) 1996-06-05
EP0709864B1 (fr) 1999-01-13
ATE175806T1 (de) 1999-01-15
DE59504800D1 (de) 1999-02-25
DE4438653C1 (de) 1996-06-20

Similar Documents

Publication Publication Date Title
DE112016000367T5 (de) Statoraufbau für einen Motor
EP0232471A2 (fr) Transducteur de courant à haute tension et procédé pour sa fabrication
DE2540605B2 (de) Langgestreckte Einspannhülse aus verformbarem Metall
EP0709864B1 (fr) Transformateur encapsulé en résine coulée
EP1610350A2 (fr) Transformateur de soudage
DE69705840T2 (de) Verbesserung im stator kühlkompressormotoren
CH660088A5 (de) Scheibenisolator mit eingusselektrode und verfahren zu seiner herstellung.
DE2244158A1 (de) Drossel oder transformator, insbesondere als vorschaltgeraet fuer gasentladungslampen
DE10145570C2 (de) Elektromotor
DE725978C (de) Anordnung der aus Flachband bestehenden Primaerwicklung von Stromwandlern mit Schenkelkern
DE102016215646A1 (de) Mehrstocktransformator für ein Verteilnetz oder den Betrieb mit einem Umrichter
EP3577665B1 (fr) Partie active pour un appareil électrique à haute tension
DE2418230C3 (de) Kapazitiv gesteuerte Hochspannungswicklung aus Scheibenspulen für Transformatoren mit großen Leistungen
DE202014006814U1 (de) Wicklungsanordnung
DE3239391C2 (fr)
DE1915864C3 (de) Drehstromöltransformator
DE2425899A1 (de) Wicklungsanordnung fuer transformatoren mit rechteckigem kernquerschnitt
EP0102941B1 (fr) Enroulement à conducteurs transposés
DE2513393C3 (de) Hochspannungsstromwandler
DE102017204930B4 (de) Elektrisches Gerät zum Anschluss an ein Hochspannungsnetz
DE19829761A1 (de) Verfahren und Leitungsverbinder zum Verbinden von warmfest lackisolierten Drähten
DE2161635A1 (de) Drossel oder transformator, insbesondere als vorschaltgeraet fuer gasentladungslampen
EP0967690B1 (fr) Procédé de raccordement de fils mince avec un élément de contact conduisant de courant et produits ainsi obtenus
DE19609260C2 (de) Isolationsanordnung für rechteckige Wickeldrähte zur Herstellung von Wicklungen aus Scheibenspulen für Transformatoren und Drosseln
DE19701295B4 (de) Vorrichtung zum Verbinden zweier Leiter miteinander mit einer zweigeteilten Hülse

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB IT LI NL PT SE

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB IT LI NL PT SE

17P Request for examination filed

Effective date: 19960706

17Q First examination report despatched

Effective date: 19960821

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI NL PT SE

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

Ref country code: SE

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19990113

REF Corresponds to:

Ref document number: 175806

Country of ref document: AT

Date of ref document: 19990115

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: SIEMENS SCHWEIZ AG

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59504800

Country of ref document: DE

Date of ref document: 19990225

ET Fr: translation filed
ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2127451

Country of ref document: ES

Kind code of ref document: T3

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

Effective date: 19990524

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

Ref country code: AT

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

Effective date: 19991018

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

Ref country code: ES

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

Effective date: 19991019

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

Ref country code: NL

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

Effective date: 20000501

EUG Se: european patent has lapsed

Ref document number: 95116433.4

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20000501

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

Ref country code: PT

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

Effective date: 20010430

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20001113

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

Ref country code: BE

Payment date: 20041020

Year of fee payment: 10

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

Ref country code: BE

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

Effective date: 20051031

BERE Be: lapsed

Owner name: *SIEMENS A.G.

Effective date: 20051031

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

Ref country code: CH

Payment date: 20080110

Year of fee payment: 13

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

Ref country code: DE

Payment date: 20071214

Year of fee payment: 13

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

Ref country code: PT

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

Effective date: 19991018

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: SIEMENS SCHWEIZ AG;INTELLECTUAL PROPERTY FREILAGERSTRASSE 40;8047 ZUERICH (CH)

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

Ref country code: IT

Payment date: 20081028

Year of fee payment: 14

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

Ref country code: FR

Payment date: 20081017

Year of fee payment: 14

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: GB

Payment date: 20081020

Year of fee payment: 14

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: 20090501

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

Ref country code: LI

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

Effective date: 20081031

Ref country code: CH

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

Effective date: 20081031

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100630

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: 20091102

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: 20091018

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

Effective date: 20091018