WO2003100798A1 - Collecteur de courant, en particulier pour transformateur variable - Google Patents

Collecteur de courant, en particulier pour transformateur variable Download PDF

Info

Publication number
WO2003100798A1
WO2003100798A1 PCT/EP2003/004983 EP0304983W WO03100798A1 WO 2003100798 A1 WO2003100798 A1 WO 2003100798A1 EP 0304983 W EP0304983 W EP 0304983W WO 03100798 A1 WO03100798 A1 WO 03100798A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact
current collector
winding
gap
variable transformer
Prior art date
Application number
PCT/EP2003/004983
Other languages
German (de)
English (en)
Inventor
Helmut Flieger
Original Assignee
Helmut Flieger
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
Priority claimed from DE10237367A external-priority patent/DE10237367A1/de
Application filed by Helmut Flieger filed Critical Helmut Flieger
Priority to AU2003240232A priority Critical patent/AU2003240232A1/en
Priority to DE50312243T priority patent/DE50312243D1/de
Priority to EP03732357A priority patent/EP1508147B1/fr
Priority to AT03732357T priority patent/ATE452413T1/de
Publication of WO2003100798A1 publication Critical patent/WO2003100798A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/06—Variable transformers or inductances not covered by group H01F21/00 with current collector gliding or rolling on or along winding

Definitions

  • the present invention relates to a current collector, in particular a variable transformer, for sliding displacement on a contact path, which is formed by at least partially stripped segments, in particular windings of a winding, the current collector having two electrically separated contact pieces, each of which contacts the contact path with a contact zone , wherein a contact zone is dimensioned such that it contacts the surface of only one stripped segment.
  • the invention also relates to a variable transformer, in particular with such a pantograph.
  • the object of the present invention is therefore to provide a pantograph of simple construction and inexpensive to manufacture, which contributes to avoiding excessive heating at the contact point.
  • an essential concept of the invention is to design it by means of the two rigidly coupled, electrically insulated contact pieces in such a way that it either rests with both contact pieces simultaneously on one segment or on one turn, or that it has one contact piece on one and on the other another contact piece rests on the other segment or is contactless over the space.
  • the current collector is to be designed according to the invention in such a way that it does not simultaneously draw current from two adjacent turns in any position with a single contact piece and thus causes a short circuit in the immediate vicinity of the turns. Heating with the consequences of damage is therefore excluded according to the invention.
  • the two contact zones must lie on a common contact surface, which can be curved or flat, the space between two adjacent segments being able to be bridged with the contact surface.
  • This feature is important so that the pantograph does not slip between the segments and may cause a short circuit there.
  • the pantograph therefore always moves as a unit on one level and is supported by the stripped segments. Sufficiently good contact is thus ensured at all times, so that the risk of overheating is minimized by small contact cross sections.
  • the pantograph according to the invention has various advantages that result from the fact that the heat development is avoided in the immediate vicinity of the stripped winding due to the almost zero resistance of the pantograph. This applies to the short-circuit current between two adjacent turns and also to the load current drawn by the pantograph. On the one hand, this generally increases the safety of the electrical device equipped with the pantograph. The safety results from the significantly lower thermal load on the insulation, for example of enamelled copper wire.
  • variable transformers can be used to obtain a higher output without resulting in damage.
  • the customer can choose the smaller and less expensive device, whose range of performance would not have been sufficient for him previously.
  • the contact zones are each flat and lie in a common contact plane.
  • the Contact pieces of the current collector can also be slightly inclined with respect to one another with their contact zones in order to ensure good running properties and optimal contact, for example in the case of a cylindrical winding surface.
  • the contact pieces are of identical design and are arranged one behind the other with the aid of an insulator in the direction of the displacement.
  • the current collector has two contact pieces arranged one behind the other and laterally offset from one another.
  • This measure avoids a gap, and it is particularly advantageous for smooth and uninterrupted operation of the customer on the contact path if the two staggered contact pieces overlap in a zone that is small compared to the dimension of a contact piece.
  • the area of overlap only needs to be a few tenths of a millimeter to lead to the desired success.
  • the contact pieces are each made in one piece from metal. Brass or bronze are preferred because of their excellent sliding properties. Contact pieces with low resistance can be made from metal. Finally, low-resistance contact pieces with a resistance of in particular less than 0.001 ⁇ are expedient to avoid local heating. In contrast to contact pieces made of coal, the abrasion of contact pieces made of metal is considerably lower.
  • the metal contact pieces also solve the problem that the contact piece can clamp in the form of a carbon roller on the axis of the pantograph and after a short time a flat surface is ground in, which bridges several turns. This prevents the windings and the entire transformer from burning due to a short circuit.
  • the contact pieces are electrically connected directly to one another via a simple line section containing a defined series resistor.
  • a simple line section containing a defined series resistor in order to be able to limit the current strength of the current flowing through the contacts, it is advantageous if in the Line distance resistors are introduced, which are not arranged in the immediate vicinity of the winding and through which heat can be easily dissipated.
  • the winding is wound from a wire which is essentially rectangular in cross section. Since there is a risk that the parallel windings on the bare surface, for example by the current collector, will short-circuit with such a winding, it is imperative that a correspondingly wider insulating gap in the form of a joint or a gap between two adjacent windings at least in the area of the bare surface be provided. This can subsequently be introduced into the surface, for example by milling. However, it is also possible and also advantageous to prepare the wire before winding so that the joint results automatically. The wire then has a defined geometry at the contact point. Because of the necessary gaps or joints, the otherwise rectangular geometry of the wire has to be broken in a sense, so that an "essentially" rectangular cross section is created. It is important that the base area and the side areas are arranged perpendicular to each other.
  • the “rectangular” wire can be used not only in the variable transformers described so far and equipped with the current collector according to the invention, but also generally use with any variable transformers. In a system with the conventional coal current collectors, however, a thicker wire would not benefit in that the winding temperature could be reduced, but the temperature generated by the current collector at the contact point would not decrease. The use of the "rectangular” wire is therefore particularly useful in connection with the pantographs according to the invention.
  • FIGS. 1 to 4 Exemplary embodiments of the invention are shown in FIGS. 1 to 4 and are described in more detail below. Show it: 1 shows the diagram of a variable transformer,
  • Figure 2 is a detailed view of a pantograph on the turns.
  • FIG. 1 shows the diagram of a variable transformer with a primary winding 1 with N, turns and a secondary winding 2 with N 2 turns, both of which include a common iron core 3.
  • the variable transformer which can also be embodied as a so-called economy transformer, has a current collector 4 for sliding displacement on a contact path 5, the contact path 5 being made of coils 7 made of enamelled copper wire which are parallel to one another and insulated from one another by lacquer 6 (FIG. 2) the secondary winding 2 is formed.
  • the current collector 4 has two contact pieces 8a and 8b, which are electrically separated from one another by an insulator 15 and each contact the winding surface and thus the contact path 5 with a contact zone 9.
  • the width of a contact zone 9 is dimensioned such that it contacts the surface 10 of only one stripped winding 7.
  • the individual turns 7 thus lie on the common winding surface and are separated from one another by the insulating intermediate space.
  • the current collector 4 is displaceable over the contact path 5, the width of a contact zone 9 of a contact piece 8a and 8b being smaller than the width of an intermediate space 11 to avoid a short circuit between two adjacent windings 7, and the intermediate space 11 having the common contact area which of is formed in both contact zones of the contact pieces 8a and 8b, is bridged, as shown in FIG.
  • the width of a contact zone 9 is dimensioned such that the pantograph always contacts a winding 7 with at least one of the two contact zones 9 when it scans the contact path 5.
  • the level of the insulator in the intermediate space 11, which is formed here by the lacquer 6, is below or equal to the level of the winding surface.
  • the contact pieces 8 are electrically connected to one another via a line section 12, the line section 12 having a defined resistance due to the interposition of two resistance elements 13. The load is removed at node 14.
  • FIG. 3 shows three turns of a winding which is wound with “rectangular” wire.
  • the individual turns 16 are arranged adjacent to one another in abutting manner, the insulation 17 separating the turns 16 in each case.
  • the upper edge 18 of a turn, that is to say of the wire, is chamfered,
  • the phases cut through the wire and the insulation.
  • the cross-sections of the phases form triangular gaps between two adjacent turns 16.
  • the gaps are filled with plastic 19.
  • the bare surfaces of the turns lie on a common contact surface 20.
  • FIG. 4 shows three variants of wire cross-sections, variant a) having a recess 21 which, when the windings are arranged next to one another, also form gaps as in FIG. 3.
  • variant b) the upper surface of the wire is rounded, so that symmetrical gaps are formed when the windings are arranged next to one another.
  • the variant c) is also symmetrical and has two recesses 21.
  • Such a variant can also be produced by a rolling process, the insulation being subsequently ground off.

Abstract

L'invention concerne un collecteur de courant (4), en particulier d'un transformateur variable, prévu pour glisser sur une ligne de contact (5) formée par des segments au moins partiellement dénudés, en particulier des enroulements (7) d'une bobine (2). Selon ladite invention, ce collecteur de courant (4) présente deux plots de contact (8) isolés électriquement, mettant en contact la ligne de contact (5) avec une zone de contact respective (9) ; une zone de contact (9) est mesurée de manière à mettre en contact la surface d'un seul segment dénudé respectif (7) ; les deux plots de contact (8) sont reliés l'un à l'autre de manière rigide ; les deux zones de contact (9) se trouvent sur une surface de contact commune et l'espacement (11) entre deux segments adjacents (7) peut être recouvert avec cette surface de contact.
PCT/EP2003/004983 2002-05-29 2003-05-13 Collecteur de courant, en particulier pour transformateur variable WO2003100798A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU2003240232A AU2003240232A1 (en) 2002-05-29 2003-05-13 Current collector especially for a regulating transformer
DE50312243T DE50312243D1 (de) 2002-05-29 2003-05-13 Stromabnehmer insbesondere für stelltransformator
EP03732357A EP1508147B1 (fr) 2002-05-29 2003-05-13 Collecteur de courant, en particulier pour transformateur variable
AT03732357T ATE452413T1 (de) 2002-05-29 2003-05-13 Stromabnehmer insbesondere für stelltransformator

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10224246 2002-05-29
DE10224246.1 2002-05-29
DE10237367A DE10237367A1 (de) 2002-05-29 2002-08-13 Stromabnehmer insbesondere für Stelltransformator
DE10237367.1 2002-08-13

Publications (1)

Publication Number Publication Date
WO2003100798A1 true WO2003100798A1 (fr) 2003-12-04

Family

ID=29585329

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/004983 WO2003100798A1 (fr) 2002-05-29 2003-05-13 Collecteur de courant, en particulier pour transformateur variable

Country Status (3)

Country Link
EP (1) EP1508147B1 (fr)
AU (1) AU2003240232A1 (fr)
WO (1) WO2003100798A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2659912A2 (fr) 2007-07-17 2013-11-06 Novartis AG Purification de conjugué

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104036930B (zh) * 2014-05-29 2016-12-07 电子科技大学 磁集成贴装磁屏蔽功率电感器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2009013A (en) * 1934-06-01 1935-07-23 Gen Radio Co Alternating-current apparatus
FR812761A (fr) * 1935-10-30 1937-05-18 Dispositif régulateur de la force électromotrice produite dans le circuit d'un autotransformateur à rapport variable
GB479552A (en) * 1936-01-20 1938-02-08 Adrien De Backer Improvements in current collectors for transformers and like apparatus
DE1281024B (de) * 1964-06-26 1969-03-27 Siemens Ag Stellwicklung mit Stromabnehmeeinrichtung fuer Transformatoren
US3478290A (en) * 1967-11-16 1969-11-11 Gen Electric Adjustable sliding brush transformer and method of producing a brush track therefor
US4189672A (en) * 1978-03-27 1980-02-19 Peschel Stanley G Variable transformer method and apparatus for preventing short-circuit current flow

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3025452A (en) * 1958-02-06 1962-03-13 Standard Electrical Products C Electrical apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2009013A (en) * 1934-06-01 1935-07-23 Gen Radio Co Alternating-current apparatus
FR812761A (fr) * 1935-10-30 1937-05-18 Dispositif régulateur de la force électromotrice produite dans le circuit d'un autotransformateur à rapport variable
GB479552A (en) * 1936-01-20 1938-02-08 Adrien De Backer Improvements in current collectors for transformers and like apparatus
DE1281024B (de) * 1964-06-26 1969-03-27 Siemens Ag Stellwicklung mit Stromabnehmeeinrichtung fuer Transformatoren
US3478290A (en) * 1967-11-16 1969-11-11 Gen Electric Adjustable sliding brush transformer and method of producing a brush track therefor
US4189672A (en) * 1978-03-27 1980-02-19 Peschel Stanley G Variable transformer method and apparatus for preventing short-circuit current flow

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2659912A2 (fr) 2007-07-17 2013-11-06 Novartis AG Purification de conjugué

Also Published As

Publication number Publication date
EP1508147A1 (fr) 2005-02-23
AU2003240232A1 (en) 2003-12-12
EP1508147B1 (fr) 2009-12-16

Similar Documents

Publication Publication Date Title
DE112007000344B4 (de) Schutzdrosselteil
DE3915287C2 (de) Kontaktanordnung für einen Vakuumschalter
DE2542633A1 (de) Primaerteil fuer eine linearinduktionsmaschine
EP0381843A2 (fr) Contact interrupteur
EP3282501B1 (fr) Batterie, element de batterie pour la batterie et barrette de connexion associee
EP0782755B1 (fr) Conducteur d'amenee de courant en sortie de la feuille conductrice de l'enroulement en feuille d'un transformateur de puissance
EP1722997B1 (fr) Pole magnetique pour vehicule a sustentation magnetique
EP1508147B1 (fr) Collecteur de courant, en particulier pour transformateur variable
DE1908152C3 (de) Funkenstreckenanordnung für einen Überspannungsableiter
DE2705954C3 (de) Schienenstoßverbindung für einen asynchronen Linearmotor
DE10237367A1 (de) Stromabnehmer insbesondere für Stelltransformator
DE723618C (de) Regeltransformator, insbesondere fuer Buehnenbeleuchtungszwecke, mit Flachmetallwicklung
EP0520361B1 (fr) Inductance refroidie à l'eau pour dispositifs à courant élevé
DE1815082A1 (de) Zuendspule fuer magnetische Schwungraeder
DE2417125B2 (de) Leistungstransformator
DE639885C (de) ABC-Stufenschalter zum Schalten von Reguliertransformatoren unter Last
EP3420570B1 (fr) Appareil électrique haute tension comportant un ensemble d'enroulements de réglage
DE3400190A1 (de) Vakuumschalter-kontaktanordnung
DE2818542B2 (de) Hochstromdrosselspule
DE4041980C2 (de) Wähler für Stufenschalter von Transformatoren und Drosselspulen
DE2311910A1 (de) Elektrischer stufendrehschalter
DE102004008688A1 (de) Linearmotor
DE19608289C2 (de) Aus Scheibenspulen bestehende Hochspannungswicklung für Transformatoren und Drosselspulen
DE2516128C3 (de) Gleichstrommotor mit Wendepolen
DE1513916B2 (de) Wicklungsaufbau mit mehreren axial übereinanderliegenden Teilwicklungen für Transformatoren und Drosselspulen

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2003732357

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2003732357

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP