EP0037500B1 - Carcasse pour enroulement électrique refroidi à l'air - Google Patents

Carcasse pour enroulement électrique refroidi à l'air Download PDF

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Publication number
EP0037500B1
EP0037500B1 EP81102127A EP81102127A EP0037500B1 EP 0037500 B1 EP0037500 B1 EP 0037500B1 EP 81102127 A EP81102127 A EP 81102127A EP 81102127 A EP81102127 A EP 81102127A EP 0037500 B1 EP0037500 B1 EP 0037500B1
Authority
EP
European Patent Office
Prior art keywords
bobbin creel
creel according
arm
frames
flanges
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
Application number
EP81102127A
Other languages
German (de)
English (en)
Other versions
EP0037500A1 (fr
Inventor
Harald Meffert
Rolf Pieper
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.)
W Meffert KG
Original Assignee
W Meffert 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
Priority claimed from DE19803010823 external-priority patent/DE3010823A1/de
Priority claimed from DE19818108092 external-priority patent/DE8108092U1/de
Application filed by W Meffert KG filed Critical W Meffert KG
Priority to AT81102127T priority Critical patent/ATE15420T1/de
Publication of EP0037500A1 publication Critical patent/EP0037500A1/fr
Application granted granted Critical
Publication of EP0037500B1 publication Critical patent/EP0037500B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers

Definitions

  • the invention relates to a coil frame according to the preamble of claim 1.
  • One of the most common bobbins of this type consists of a square cylinder which merges into a collar-like flange on the two end faces, which is directed outward at right angles from the closed outer surface.
  • the cylinder surrounds the iron core and also serves as a carrier for the inner winding.
  • the outer winding is applied to rods which are arranged axially parallel between the flanges and with their ends engage in radial edge slots at the corners of the flanges (e.g. DE-A-2162104).
  • This known bobbin has the disadvantage that it is also necessary to produce bobbins of different sizes for coils of different sizes in accordance with the requirements placed on them in terms of performance and other physical and technical properties. Even if the coils lying within a certain dimension range differ from one another only in a single dimension, that is to say only in length or width or height, a special coil former must be provided for each of these coils. Such bobbins can only be produced by the press or injection molding process, so that a separate shape must be produced for each bobbin size, for which a considerable economic outlay is required. In addition, with regard to the expected consumption of all available bobbin sizes within a certain period of time, i.e.
  • US-A-3 352 509 shows a coil former in which the two end parts are plugged together with the longitudinal parts, but which requires different longitudinal end parts for each core size.
  • the cylinder carrying the inner winding has a closed outer surface, because this prevents sufficient air circulation, which is essential for dissipating the heat generated during operation of the coil.
  • This disadvantage is attempted in the known bobbins by using better quality material for the iron cores, but this results in a noticeable increase in manufacturing costs, particularly in the case of transformers of large dimensions.
  • these shell-side closed bobbins are very expensive, which has a cost-increasing effect if, due to the requirement of high temperature resistance, high-quality and thus expensive materials, for example glass-fiber reinforced plastics, have to be used.
  • the present invention has for its object to provide a coil body adjustable to different core sizes, which can be produced easily and in a material-saving manner and enables good air circulation between the windings.
  • the bobbin frame according to the invention is distinguished from conventional bobbins of this type in that it is constructed according to the modular principle and can be assembled by simply plugging individual elements into one another.
  • a plurality of differently sized bobbin frames can be produced by combining the frame corner parts of one and the same size required to form two plug-in frames with sets of leg connectors and supporting elements of different lengths.
  • the individual parts of the coil frame according to the invention can be produced in a simple and relatively inexpensive manner by extrusion, stamping or pressing. The production of elaborate forms is not necessary.
  • the individual parts of the bobbin frame according to the invention can be accommodated and packaged in a space-saving manner, which has an advantageous effect on storage and shipping.
  • a coil frame 7 which consists of two size changes Chen plug-in frame 8 and 9, which are releasably connected to one another with the aid of four profile bars 10 engaging in the recesses 8a and 9a.
  • the profile bars 10 are provided with a curved outer side 10a; these roundings enable a precise and damage-free application of the inner winding 13.
  • the profiled rod 10 has a rectangular recess 10b which extends over the entire rod length and which serves as a form-fitting holder for a longitudinal edge of an iron core (not shown) with a rectangular cross-section.
  • the plug-in frame 8, 9 according to FIGS. 2 and 6 can be changed in the longitudinal direction and in the core cross section. It has four corner pieces, each corner piece containing two leg sections 8g, 9g which run at right angles to one another and which merge into an outwardly directed flange 8b, 9b.
  • the leg sections 8g, 9g are each provided with an edge slot 8h, 9h.
  • Two mutually associated leg sections 8g, 9g are connected by means of a rectangular bar 15, the ends of which are inserted into the edge slots 8h, 9h with a clamping effect. If necessary, the strips 15 can additionally be fixed at the connection points by means of adhesive.
  • strips 15 of the same length must, of course, always be inserted on the opposite, ie parallel, legs of the plug frame 8, 9.
  • the length of the plug-in frame 8, 9 can be changed to the appropriate extent in both dimensions.
  • leg sections 8g are provided with undercut slots 8i into which the correspondingly shaped coupling heads 16a and 17a of connecting strips 16 and extension strips 17 can be inserted.
  • Such a form fit has the advantage that exactly defined leg lengths can be produced without further aids.
  • the flanges 8b, 9b serve on the one hand as lateral supports for the windings 13, 14 and on the other hand as guide elements for the spacer bars 12.
  • the flanges 8b, 9b are with respect to the assembled coil frame 7 on the mutually facing sides of the plug frames 8, 9 each provided a U-shaped groove 8f, 9f.
  • Each flange 8b, 9b has a slot 11 which runs parallel to its edges and penetrates the bottom of the groove 8f, 9f.
  • the spacer bars 12 have a square cross section and each have a continuous channel-shaped recess 12a on two opposite longitudinal sides.
  • the spacer bars 12 are pushed into the grooves 8f, 9f of the flanges 8b, 9b in such a way that one of the two recesses 12a of the inner winding 13 and the other recess 12a of the outer winding 14 to be subsequently applied are turned.
  • the spacer bars 12 create an air-insulated cylindrical ring-shaped space, a so-called chimney, between the inner winding 13 and the outer winding 14, which is accessible from the outside on both ends of the coil frame 7 through trapezoidal windows 19, which are on the outside of the plug-in frame 8, 9 are each formed between two outwardly directed flanges 8b, 9b and the outer winding 14.
  • the warm air generated by the windings 13, 14 through which current flows can exit through these windows 19 and cold air can flow in from outside into the cylindrical space.
  • further ventilation channels are formed between the groove-shaped recesses 12a of the spacer bars 12 and the respectively adjacent windings 13 and 14, with which the slots 11 located in the flanges 8b, 9b are aligned on the end face.
  • a closed plug-in frame 8, 9 according to FIGS. 1 and 3 can also be used according to the invention.
  • the legs 8c, 9c are both on the inwardly facing sides of each plug frame 8, 9 with U-shaped recesses 8d, 9d and on the mutually facing sides of the two associated plug frames 8, 9 with U-shaped recesses 8e , 9e provided.
  • These recesses also promote effective air circulation to dissipate the heat generated.
  • Such recesses can of course also be provided on the coil frame 7 according to FIG. 6.
  • the coil frame according to the invention is of course not limited to a square cross-sectional shape, although this is probably the most common.
  • 8 shows the spatial assignment of two flanges 18 of a twelve-sided plug-in frame which are connected to one another by a strip 15. Analogously to the plug-in frame 8, 9 according to FIG. 2, the leg sections 18a starting from the flanges 18 each have two edge slots 18b for receiving the strips 15. The recesses 18c correspond to the recesses 8a.
  • Each flange 18 is provided with a U-shaped groove 18d.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulating Of Coils (AREA)
  • Transformer Cooling (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Claims (14)

1. Carcasse pour enroulements électriques refroidis à l'air, de transformateurs par exemple, avec des éléments porteurs disposés parallèlement à l'axe pour un noyau de fer et pour au moins un enroulement intérieur et un enroulement extérieur, et avec des cadres (8, 9) qui limitent dans un plan frontal les éléments porteurs et auxquels ces éléments porteurs sont assemblables mécaniquement, caractérisée en ce que, entre deux cadres opposés l'un à l'autre (8, 9), les éléments porteurs sont constitués par des barres (10,12) de longueurs diverses et à section droite sans changement sur toute la longueur, et chaque barre (10, 12) pénètre dans un logement particulier (8a, 9a) ou une fente (11) traversant entièrement ou en partie l'épaisseur du cadre.
2. Carcasse selon la revendication 1, caractérisée en ce que chaque branche (9c) d'un cadre (9) est constituée d'éléments (15, 16, 17) assemblables par engagement réciproque de manière démontable.
3. Carcasse selon la revendication 1 caractérisée en ce que le cadre (8, 9) se compose d'au moins trois branches (8c, 9c) et les extrémités de deux branches voisines se terminent par une bride (8b, 9b) dirigée vers l'extérieur.
4. Carcasse selon la revendication 3 caractérisée en ce que chaque branche comprend deux tronçons (8g, 9g) de branche qui s'étendent à partir des brides (8b, 9b) et qui sont assemblables entre eux directement ou indirectement pour constituer des longueurs diverses de branche.
5. Carcasse selon la revendication 4 caractérisée en ce que, des deux tronçons (8g, 9g) de chaque branche complémentaire, l'un est constitué en tenon et l'autre en pièce complémentaire recevant le tenon.
6. Carcasse selon la revendication 4 caractérisée en ce que les deux tronçons (8g, 9g) de chaque branche possèdent chacun une fonte d'extrémité (8h, 9h) accessible de son extrémité libre et ils peuvent être assemblés l'un avec l'autre au moyen d'une réglette (15) pénétrant dans ces fentes d'extrémité.
7. Carcasse selon la revendication 4 caractérisée en ce que les brides (18) ou les tronçons (8g, 9g) de branche partant des brides (8b, 9b) présentent chacun une mortaise en contre-dépouille (8i) qui est accessible de l'extrémité libre et avec laquelle la tête d'assemblage complémentaire (16a) d'une réglette de liaison (16) est assemblable mécaniquement.
8. Carcasse selon les revendications 4 et 7 caractérisée par une rallonge (17) qui présente, à une de ses extrémités, une tête d'assemblage (17a) assemblable avec la mortaise en contre-dépouille (8i) d'un tronçon (8g, 9g) de branche et, à son autre extrémité, une mortaise en contre-dépouille (17b) destinée à recevoir une tête d'assemblage (16a) d'une réglette de liaison (16).
9. Carcasse selon la revendication 1 caractérisée en ce que chacune des barres (10) reliant entre eux de manière démontable les deux cadres (8, 9) présente une face extérieure convexe (10a) et intérieurement un logement (10b) qui est de préférence à angle droit et adapté au profil du noyau.
10. Carcasse selon la revendication 3 caractérisée en ce que les brides (8b, 9b) sont munies, sur les côtés des cadres (8, 9) se faisant face, d'une rainure en U (8f, 9f) destinée à recevoir des entretoises (12).
11. Carcasse selon la revendication 3 caractérisée en ce que les brides (8b, 9b) présentent une fente (11) parallèle à la rainure (8f, 9f).
12. Carcasse selon la revendication 3 caractérisée en ce que les branches (8c, 9c) des cadres (8, 9) ont de préférence une section droite quadrangulaire et présentent sur les faces intérieures un évidement (8d, 9d) en U, qui s'étend sur une partie substantielle de la longueur des branches.
13. Carcasse selon la revendication 3 caractérisée en ce que les branches (8c, 9c) des cadres (8, mt 9) présentent dans leurs faces en regard l'une de l'autre, un évidement (8e, 9e) en U, qui s'étend sur une partie substantielle de la longueur des branches.
14. Carcasse selon la revendication 10 caractérisée en ce que les entretoises (12) destinées à être introduites par leurs extrémités dans les rainures en U (8f, 9f) des brides (8b, 9b) présentent une section droite quadrangulaire et possèdent, au moins dans deux faces longitudinales opposées, une dépression continue (12a) à profil de gouttière.
EP81102127A 1980-03-21 1981-03-20 Carcasse pour enroulement électrique refroidi à l'air Expired EP0037500B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81102127T ATE15420T1 (de) 1980-03-21 1981-03-20 Spulengestell fuer luftgekuehlte elektrische wicklungen.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3010823 1980-03-21
DE19803010823 DE3010823A1 (de) 1980-03-21 1980-03-21 Spulenkoerper zur aufnahme elektrotechnischen wickelgutes
DE8108092U 1981-03-19
DE19818108092 DE8108092U1 (de) 1981-03-19 1981-03-19 Kaefigfoermiger spulenkoerper fuer elektrische wicklungen

Publications (2)

Publication Number Publication Date
EP0037500A1 EP0037500A1 (fr) 1981-10-14
EP0037500B1 true EP0037500B1 (fr) 1985-09-04

Family

ID=25784437

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81102127A Expired EP0037500B1 (fr) 1980-03-21 1981-03-20 Carcasse pour enroulement électrique refroidi à l'air

Country Status (6)

Country Link
US (1) US4429294A (fr)
EP (1) EP0037500B1 (fr)
DE (1) DE3172103D1 (fr)
DK (1) DK152463C (fr)
FI (1) FI71038C (fr)
NO (1) NO155948C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004056316B4 (de) * 2003-11-20 2011-12-15 Rolf Pieper Spulengestell

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4944975A (en) * 1988-10-03 1990-07-31 E. I. Du Pont De Nemours And Company Composite coil forms for electrical systems
US5497136A (en) * 1992-11-30 1996-03-05 Dana Corporation Locating ring for encapsulating a coil
DE102004022043B3 (de) * 2004-05-03 2005-06-09 Rudolf Michael Gmbh Spulengerüst oder Spulengerüst-Bausatz
TW201429105A (zh) * 2013-01-04 2014-07-16 Primax Electronics Ltd 無線充電傳輸裝置
WO2014135205A1 (fr) * 2013-03-06 2014-09-12 Siemens Ag Österreich Transformateur électrique ou bobine de choc ainsi que structure bobinée comprenant une pièce d'écartement
US20170092408A1 (en) * 2015-09-28 2017-03-30 Trench Limited Composite cradle for use with coil of air core reactors

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2332601A1 (fr) * 1975-11-19 1977-06-17 Leroy Maurice Bobine pour champs magnetiques intenses

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GB1053318A (fr) * 1900-01-01
US1473862A (en) * 1916-06-19 1923-11-13 Westinghouse Electric & Mfg Co Three-phase reactance coil
US1853148A (en) * 1931-08-21 1932-04-12 Rigante Giuseppe Coil structure
CH231590A (de) * 1941-07-05 1944-03-31 Philips Nv Selbstinduktionsspule mit im wesentlichen durch Luft getrennten und verlustfrei angebrachten Windungen.
FR1173989A (fr) * 1956-03-01 1959-03-04 Procédé pour la fabrication de bobines pour circuits bouchons à plusieurs sériescoaxiales de spires à peu près hélicoïdales séparées
GB1007569A (en) * 1962-05-29 1965-10-13 Anthony Barclay Trench Current limiting reactor
US3289031A (en) * 1963-01-28 1966-11-29 Varian Associates High frequency electron discharge devices and slow wave structures therefor
US3352509A (en) * 1965-12-15 1967-11-14 Sola Basic Ind Inc Multi-piece coil bobbin
US3329374A (en) * 1965-12-30 1967-07-04 Sylvania Electric Prod Coil winding arbor
DE1774159A1 (de) * 1967-08-19 1971-11-18 Siemens Ag Zerlegbare Kabeltrommel
DE1574441A1 (de) * 1967-08-19 1971-12-09 Siemens Ag Zusammenlegbare Kabeltrommel
FR1592347A (fr) * 1967-11-21 1970-05-11
CH525822A (it) * 1970-04-11 1972-07-31 Macchi Romualdo Struttura di confezionamento di cavi inguainati per cemento armato precompresso
DE2162104C3 (de) * 1971-12-15 1975-01-23 Siemens Ag, 1000 Berlin Und 8000 Muenchen Spulenkörper für konzentrische Wicklungen eines Transformators oder einer Drosselspule
CH567327A5 (fr) * 1973-12-19 1975-09-30 Bbc Brown Boveri & Cie
DE2432919A1 (de) * 1974-07-05 1976-02-12 Siemens Ag Stromwandler nach dem prinzip des magnetischen spannungsmessers

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2332601A1 (fr) * 1975-11-19 1977-06-17 Leroy Maurice Bobine pour champs magnetiques intenses

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004056316B4 (de) * 2003-11-20 2011-12-15 Rolf Pieper Spulengestell

Also Published As

Publication number Publication date
US4429294A (en) 1984-01-31
DK152463C (da) 1988-08-01
DK152463B (da) 1988-02-29
FI71038C (fi) 1986-10-27
EP0037500A1 (fr) 1981-10-14
NO155948B (no) 1987-03-16
NO810974L (no) 1981-09-22
FI71038B (fi) 1986-07-18
NO155948C (no) 1987-06-24
FI810882L (fi) 1981-09-22
DK127381A (da) 1981-09-22
DE3172103D1 (en) 1985-10-10

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