EP0782755B1 - Conducteur d'amenee de courant en sortie de la feuille conductrice de l'enroulement en feuille d'un transformateur de puissance - Google Patents
Conducteur d'amenee de courant en sortie de la feuille conductrice de l'enroulement en feuille d'un transformateur de puissance Download PDFInfo
- Publication number
- EP0782755B1 EP0782755B1 EP95930376A EP95930376A EP0782755B1 EP 0782755 B1 EP0782755 B1 EP 0782755B1 EP 95930376 A EP95930376 A EP 95930376A EP 95930376 A EP95930376 A EP 95930376A EP 0782755 B1 EP0782755 B1 EP 0782755B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- power supply
- supply conductor
- foil
- end pieces
- flag
- 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.)
- Expired - Lifetime
Links
Images
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
-
- 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
- H01F27/2847—Sheets; Strips
- H01F27/2852—Construction of conductive connections, of leads
Definitions
- the invention relates to a laminated power supply conductor a power transformer with one out of one band-shaped conductor foil wound, air-cooled foil winding, whose film end due to in the longitudinal direction Foil-running slots several flag-like end pieces forms which is opposite to the film longitudinal direction folded stack of the power supply conductor folded are.
- a power supply conductor is off "Electrical Equipment", Jul./Aug. 1974, pages 60 to 62.
- the object of the present invention is therefore the known Power supply conductor with the aforementioned Features to improve in that the eddy current losses are further diminished in its laminated stack.
- the foil winding of a power transformer is one Laminating the cross section of the power supply conductor and its shortening to an electrically effective length is provided. Controlled current introduction also reduces the maximum current densities occurring in the connection foil the wrapping film; and thus the losses in the connection area the film is also reduced.
- Figure 1 shows the end of a known band-shaped Conductor foil 2 with a width B.
- flag-like end pieces 3i all about the same width b. If necessary, however, they can also have different widths.
- the width b of the End pieces 3i is preferably chosen so that the front Edge zones 2a and 2b of the connecting foil 2 remain free.
- each End pieces 3i can advantageously symmetrical with respect to the extended center line 5 of the connecting film 2 be arranged.
- the length Li of each End pieces 3i can be chosen so that after a Folding the front ends 6i of the end pieces 3i approximately a common face of a stack of the power supply conductor form.
- the shortest end piece 3a is the first to be folded should be seen, and that in the direction of current conduction first, the transition of current from the power supply conductor on the connection film 2 allows. According to the Representation of the figure it is to be regarded as the "top" end piece.
- This uppermost end piece 3a is moved upwards according to FIG Angled by 90 ° and forming a folding area lla folded.
- This end piece, now designated 3a ' According to the invention on its upper flat side F, on the next flag-like end piece (3b) will come to rest later should, at least in part, be isolated. (The folded End pieces are additionally marked with '' "below). According to FIG. 3, this flat side F can be used accordingly an insulation film 7a are covered.
- the insulation film can, as assumed in Figure 3, a slightly larger Width b 'as the associated flag-like end piece 3a' exhibit; the widths b 'and b of insulation film 7a and End piece 3a 'can also be the same.
- the insulation film 7a should at least one area 12 around the elongated lateral edge 21 of the connecting foil 2 (or by its extended cover the longitudinal edge). They are advantageous both side edges of area 12 a few centimeters from that extended edge 21 removed. It also extends advantageously the insulation film 7 up to the folding area lla of the end piece 3a (inclusive) and preferably above also covered under the folding area llb of the next end piece (3b). If necessary, the bottom of the end piece 3a 'at least in its folding area lla be provided with an insulation film.
- the second flag-like end piece 3b folded up accordingly so that the two end pieces 3a 'and 3b' together with the insulation film between them 7a, for example, overlapping one another come to lie. Then again an insulation according to the figure 3 made.
- the flag-like end pieces 3i only need to be a few centimeters isolated outside the edge region 12 of the film winding be led from each other; after that you can go to isolation dispense between the end pieces and these without insulation continue or in a massive supply rail let pass
- the distribution of the total conductor current among the individual flag-like end pieces is influenced by the different Length and thus by the electrical resistance of the respective end pieces as well as by the different axial connection positions of the end pieces on the connection film. These connection positions lay the different Flow chaining of the film over the winding height and thus the induced voltage fixed. In the axial center of the slide is the river chain higher than at the top and bottom of the Foil.
- FIG. 7 shows such a drop in current in a diagram.
- the reference number of the respective end piece is marked the extension a (2) of the area of the connecting foil 2 Undervoltage winding entered accordingly. From the The course of the curve can be controlled, proportionately uniform current drop at the end of the power supply line detect. This increases current density increases in the connecting foil and consequently additional losses avoided.
- each folded End pieces 3i ' is effected by means of insulation foils.
- other insulation technology are also Suitable measures. So you can e.g. the individual end pieces before or after folding them with insulating layers.
- a lateral shift can, for example, by a subsequent material removal on the left and / or right-hand longitudinal edges of the end pieces.
- the measures according to the invention relate essentially on the design of a power supply line of a power transformer with foil winding.
- Corresponding power transformers are known in principle, so that in the Drawings, the explicit representation of which has been omitted.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
- Coils Or Transformers For Communication (AREA)
- Transformers For Measuring Instruments (AREA)
- Dc-Dc Converters (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
Claims (10)
- Conducteur (2) lamellé d'amenée de courant d'un transformateur de puissance comprenant un enroulement en feuille refroidi par air et obtenu par l'enroulement d'une feuille conductrice en forme de bande, et dont l'extrémité de la feuille forme, en raison de fentes s'étendant dans la direction longitudinale de la feuille, plusieurs parties d'extrémité (3a, 3b, 3c, 3d) semblables à des drapeaux qui sont pliées de manière à former un empilement du conducteur d'amenée de courant replié par rapport à la direction longitudinale de la feuille, caractérisé en ce que les parties d'extrémité pliées (3i') semblables à des drapeaux de l'empilement (10) du conducteur sont isolées les unes par rapport aux autres au moins dans la région (12) du bord 21) de la partie de la feuille (2) qui n'est pas fendue.
- Conducteur d'amenée de courant selon la revendication 1, caractérisé en ce que l'on prévoit des feuilles isolantes (7) pour l'isolation réciproque des parties d'extrémité pliées (3i') semblables à des drapeaux.
- Conducteur d'amenée de courant selon la revendication 1 ou 2, caractérisé en ce que les parties d'extrémité (3i) semblables à des drapeaux sont situées, avant leur pliage, de manière symétrique par rapport à un axe (5) de la feuille conductrice (2).
- Conducteur d'amenée de courant selon l'une des revendications 1 à 3, caractérisé en ce que les parties d'extrémité (3i resp. 3i') semblables à des drapeaux ont la même largeur (b).
- Conducteur d'amenée de courant selon l'une des revendications 1 à 4, caractérisé en ce que les parties d'extrémité (3i) semblables à des drapeaux présentent, avant leur pliage, une longueur (Li) qui augmente d'une partie d'extrémité à l'autre, de sorte qu'après le pliage, elles forment à peu près un côté frontal commun du conducteur d'amenée de courant (8).
- Conducteur d'amenée de courant selon l'une des revendications 1 à 5, caractérisé en ce que les parties d'extrémité (3i') semblables à des drapeaux sont pliées de manière à ce que, dans l'empilement (10), leurs positions coïncident au moins de façon approximative.
- Conducteur d'amenée de courant selon l'une des revendications 1 à 5, caractérisé en ce qu'au moins quelques unes des parties d'extrémité (3c', 3d') semblables à des drapeaux sont pliées de manière à ce que, dans l'empilement du conducteur d'amenée de courant, elles soient légèrement décalées latéralement les unes par rapport aux autres (voir Figure 6).
- Conducteur d'amenée de courant selon la revendication 7, caractérisé en ce que le décalage latéral (v) mesure quelques millimètres au maximum.
- Enroulement en feuille avec un conducteur d'amenée de courant selon l'une des revendications 1 à 8.
- Transformateur de puissance avec un conducteur d'amenée de courant selon l'une des revendications 1 à 8.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4433700A DE4433700A1 (de) | 1994-09-21 | 1994-09-21 | Stromzuführungsleiter aus der Leiterfolie der Folienwicklung eines Leistungstransformators |
DE4433700 | 1994-09-21 | ||
PCT/DE1995/001230 WO1996009631A1 (fr) | 1994-09-21 | 1995-09-08 | Conducteur d'amenee de courant en sortie de la feuille conductrice de l'enroulement en feuille d'un transformateur de puissance |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0782755A1 EP0782755A1 (fr) | 1997-07-09 |
EP0782755B1 true EP0782755B1 (fr) | 1998-05-06 |
Family
ID=6528815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95930376A Expired - Lifetime EP0782755B1 (fr) | 1994-09-21 | 1995-09-08 | Conducteur d'amenee de courant en sortie de la feuille conductrice de l'enroulement en feuille d'un transformateur de puissance |
Country Status (11)
Country | Link |
---|---|
US (1) | US5805045A (fr) |
EP (1) | EP0782755B1 (fr) |
JP (1) | JPH10505952A (fr) |
KR (1) | KR970706589A (fr) |
CN (1) | CN1068954C (fr) |
AT (1) | ATE165933T1 (fr) |
BR (1) | BR9508980A (fr) |
DE (2) | DE4433700A1 (fr) |
ES (1) | ES2116762T3 (fr) |
TW (1) | TW271483B (fr) |
WO (1) | WO1996009631A1 (fr) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6535100B2 (en) * | 2000-04-14 | 2003-03-18 | Powerware Corporation | Insulated transformer foil windings with breakouts and methods for forming the same |
DE10052569A1 (de) * | 2000-10-24 | 2002-04-25 | Bosch Gmbh Robert | Folienwicklung für Drehübertrager |
US6642830B1 (en) * | 2000-11-07 | 2003-11-04 | Iota Engineering Co. | Self lead foil winding configuration for transformers and inductors |
US6930582B2 (en) * | 2000-11-07 | 2005-08-16 | Iota Engineering Co. | Self lead foil winding configuration for transformers and inductors |
DE10157590A1 (de) * | 2001-11-23 | 2003-06-05 | Abb T & D Tech Ltd | Wicklung für einen Transformator oder eine Spule |
ES2393506T3 (es) * | 2005-09-20 | 2012-12-21 | Scandinova Systems Ab | Transformador de pulsos de bobinado de banda |
CN102314992A (zh) * | 2010-06-29 | 2012-01-11 | 信源电子制品(昆山)有限公司 | 空芯电感线圈 |
CA2857206A1 (fr) * | 2011-12-07 | 2013-06-13 | Nec Tokin Corporation | Bobine, reacteur et procede de formation de bobine |
WO2017216412A1 (fr) * | 2016-06-13 | 2017-12-21 | Trafotek Oy | Barre omnibus destinée à un composant du génie électrique de structure de noyau à enroulements du type feuille, et composant du génie électrique de structure de noyau à enroulements du type feuille |
US11605496B2 (en) | 2018-04-09 | 2023-03-14 | Abb Schweiz Ag | Foil wound magnetic assemblies with thermally conductive tape and methods of assembling same |
NL2032236B1 (en) * | 2022-06-21 | 2024-01-08 | Univ Eindhoven Tech | Foil winding leads and method for forming the same |
CN115331954B (zh) * | 2022-10-17 | 2023-01-24 | 广州市一变电气设备有限公司 | 变压器箔式线圈绕制出线方法、绕组及节能环保变压器 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1160357A (en) * | 1909-03-03 | 1915-11-16 | Agnew Electric Welding Company | Electrical transformer. |
US2378884A (en) * | 1940-06-20 | 1945-06-19 | Thomson Gibb Electric Welding | Transformer |
DE911292C (de) * | 1947-10-03 | 1954-05-13 | Asea Ab | Hochstromwicklung fuer Transformatoren u. dgl. |
US2961747A (en) * | 1955-03-21 | 1960-11-29 | Aladdin Ind Inc | Method of making inductance coils |
SE324668B (fr) * | 1968-12-20 | 1970-06-08 | Ibm Svenska Ab | |
DE1908165A1 (de) * | 1969-02-19 | 1970-10-15 | Schorch Gmbh | Bandwicklung fuer Transformatoren |
NL8702531A (nl) * | 1987-10-23 | 1989-05-16 | Philips Nv | Roterende transformator. |
US4902998A (en) * | 1988-11-21 | 1990-02-20 | Westinghouse Electric Corp. | Inductor assembly with cooled winding turns |
-
1994
- 1994-09-21 DE DE4433700A patent/DE4433700A1/de not_active Withdrawn
-
1995
- 1995-08-09 TW TW084108290A patent/TW271483B/zh active
- 1995-09-08 DE DE59502126T patent/DE59502126D1/de not_active Expired - Fee Related
- 1995-09-08 US US08/809,332 patent/US5805045A/en not_active Expired - Fee Related
- 1995-09-08 AT AT95930376T patent/ATE165933T1/de not_active IP Right Cessation
- 1995-09-08 WO PCT/DE1995/001230 patent/WO1996009631A1/fr active IP Right Grant
- 1995-09-08 JP JP8510512A patent/JPH10505952A/ja active Pending
- 1995-09-08 BR BR9508980A patent/BR9508980A/pt not_active IP Right Cessation
- 1995-09-08 ES ES95930376T patent/ES2116762T3/es not_active Expired - Lifetime
- 1995-09-08 EP EP95930376A patent/EP0782755B1/fr not_active Expired - Lifetime
- 1995-09-08 CN CN95194092A patent/CN1068954C/zh not_active Expired - Fee Related
- 1995-09-08 KR KR1019970701726A patent/KR970706589A/ko active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
CN1152970A (zh) | 1997-06-25 |
JPH10505952A (ja) | 1998-06-09 |
TW271483B (en) | 1996-03-01 |
ES2116762T3 (es) | 1998-07-16 |
BR9508980A (pt) | 1998-01-13 |
DE4433700A1 (de) | 1996-03-28 |
US5805045A (en) | 1998-09-08 |
ATE165933T1 (de) | 1998-05-15 |
KR970706589A (ko) | 1997-11-03 |
WO1996009631A1 (fr) | 1996-03-28 |
DE59502126D1 (de) | 1998-06-10 |
CN1068954C (zh) | 2001-07-25 |
EP0782755A1 (fr) | 1997-07-09 |
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