EP0037500A1 - Carcasse pour enroulement électrique refroidi à l'air - Google Patents

Carcasse pour enroulement électrique refroidi à l'air Download PDF

Info

Publication number
EP0037500A1
EP0037500A1 EP81102127A EP81102127A EP0037500A1 EP 0037500 A1 EP0037500 A1 EP 0037500A1 EP 81102127 A EP81102127 A EP 81102127A EP 81102127 A EP81102127 A EP 81102127A EP 0037500 A1 EP0037500 A1 EP 0037500A1
Authority
EP
European Patent Office
Prior art keywords
leg
plug
flanges
frame
bobbin
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
EP81102127A
Other languages
German (de)
English (en)
Other versions
EP0037500B1 (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 former for air-cooled electrical windings, for example of transformers, with supporting elements arranged axially parallel, which serve on the one hand as a holder for an iron core and on the other hand as a carrier for at least one inner and one outer winding, and with holding members delimiting the end elements on the end face.
  • 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, each of which extends from the closed outer surface at a right angle.
  • the cylinder encloses the iron countersinks 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 engage with their ends in radial edge slots at the corners of the flanges.
  • This known bobbin has the considerable disadvantage that bobbins of different sizes also have to be produced 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 pressing or injection molding, so that for each bobbin per size a separate form must be made, which requires considerable economic effort. In addition, with regard to the expected consumption of all available bobbin sizes within a certain period of time, i.e.
  • 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.
  • the known coil former attempts are made to counter this disadvantage by using better quality material for the iron cores, but this results in a noticeable increase in production 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 for high temperature resistance, high-quality and therefore expensive materials, for example glass-fiber reinforced plastics, have to be used.
  • the present invention has for its object to provide an adjustable to different sizes bobbin, which can be produced easily and economically and good air circulation between enables the windings.
  • the coil body consists of releasably engageable plug elements with respect to each spatial direction.
  • the end-side holding members are designed as plug-in frames, in the recesses of which variable-length sets of supporting elements of the same length, such as profiled bars or spacer bars, can be used, and in that each plug-in frame has at least three, preferably four, length-adjustable legs. The ends of two adjoining legs each merge into an outwardly directed flange, the flanges being provided on the mutually facing sides of the paired plug-in frames with a U-shaped groove for the engagement of the spacer bars.
  • the bobbin according to the invention is distinguished from the 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 bobbins 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 former 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 coil former 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 body 7 which consists of two size-adjustable plug frames 8 and 9, which are detachably connected to each other 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 profile bar 10 has a length of the entire bar extending rectangular recess 10b, which serves as a form-fitting holder for a longitudinal edge of an iron core, not shown, with a rectangular cross-section.
  • the plug frame 8, 9 according to FIGS. 2 and 6 can be changed in length in both directions. It has four corner pieces, each corner piece having two leg sections 8g running at right angles to one another; 9g contains, 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.
  • the strips 15 can additionally be fixed at the connection points by means of adhesive. For symmetry reasons, strips 15 of the same length must, of course, always be inserted on the opposite, ie parallel, legs of the plug frame 8, 9. By inserting strips 15 of different lengths, the length of the plug-in frame 8, 9 can be changed to the appropriate extent in both dimensions.
  • Fig. 7 a modified way of connecting two corner pieces of a plug frame is shown.
  • the leg portions are provided with undercut slots 8g 8i into which the correspondingly shaped coupling heads 16a and 17a of connecting strips 1 6 and extension strips 17 can be inserted.
  • Such a positive connection has the advantage that exactly defined leg lengths can be produced without further aids.
  • the flanges 8b, 9b serve on the one hand as a lateral support zen for the windings 13, 14 and on the other hand as guide elements for the spacer bars 12.
  • the flanges 8b, 9b are in relation to the assembled bobbin 7 on the mutually facing sides of the plug frames 8, 9, each with 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 rods 12 are inserted into the grooves 8f, 9f of the flanges 8b, 9b such 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 bobbin 7 through trapezoidal windows 19, which are on the outside of the plug 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 trough-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 inward-facing sides of each plug-in frame 8, 9 with U-shaped recesses 8d, 9d and on the mutually facing sides of the two associated plug-in 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 present on the coil former 7 according to FIG. 6.
  • the bobbin 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, which are connected to one another by a strip 15, of a twelve-sided plug-in frame. 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)
  • Separation By Low-Temperature Treatments (AREA)
  • Coils Of Transformers For General Uses (AREA)
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 true EP0037500A1 (fr) 1981-10-14
EP0037500B1 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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004022043B3 (de) * 2004-05-03 2005-06-09 Rudolf Michael Gmbh Spulengerüst oder Spulengerüst-Bausatz
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

Families Citing this family (5)

* 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
DE20317986U1 (de) * 2003-11-20 2004-07-15 Pieper, Rolf Spulenträger-Stecksystem
TW201429105A (zh) * 2013-01-04 2014-07-16 Primax Electronics Ltd 無線充電傳輸裝置
US20170092408A1 (en) 2015-09-28 2017-03-30 Trench Limited Composite cradle for use with coil of air core reactors

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US3329374A (en) * 1965-12-30 1967-07-04 Sylvania Electric Prod Coil winding arbor
US3352509A (en) * 1965-12-15 1967-11-14 Sola Basic Ind Inc Multi-piece coil bobbin
DE1294541B (de) * 1962-05-29 1969-05-08 Trench Electric Ltd Drossel ohne Eisenkern
DE1514555A1 (de) * 1963-01-28 1969-05-14 Siemens Ag Aus einzelnen Teilen zusammengesetzter roehrenfoermiger Spulentragkoerper
FR1592347A (fr) * 1967-11-21 1970-05-11
DE1774159A1 (de) * 1967-08-19 1971-11-18 Siemens Ag Zerlegbare Kabeltrommel
DE1574441A1 (de) * 1967-08-19 1971-12-09 Siemens Ag Zusammenlegbare Kabeltrommel
FR2089249A5 (fr) * 1970-04-11 1972-01-07 Macchi Romualdo
DE2162104A1 (de) * 1971-12-15 1973-06-20 Siemens Ag Spulenkoerper fuer konzentrische wicklungen eines transformators oder einer drosselspule
DE2401237A1 (de) * 1973-12-19 1975-07-03 Bbc Brown Boveri & Cie Anordnung zur isolierung elektrischer komponenten, insbesondere bei transformatoren und drosselspulen
DE2432919A1 (de) * 1974-07-05 1976-02-12 Siemens Ag Stromwandler nach dem prinzip des magnetischen spannungsmessers

Family Cites Families (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

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE1294541B (de) * 1962-05-29 1969-05-08 Trench Electric Ltd Drossel ohne Eisenkern
DE1514555A1 (de) * 1963-01-28 1969-05-14 Siemens Ag Aus einzelnen Teilen zusammengesetzter roehrenfoermiger Spulentragkoerper
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
FR2089249A5 (fr) * 1970-04-11 1972-01-07 Macchi Romualdo
DE2162104A1 (de) * 1971-12-15 1973-06-20 Siemens Ag Spulenkoerper fuer konzentrische wicklungen eines transformators oder einer drosselspule
DE2401237A1 (de) * 1973-12-19 1975-07-03 Bbc Brown Boveri & Cie Anordnung zur isolierung elektrischer komponenten, insbesondere bei transformatoren und drosselspulen
FR2255687A1 (en) * 1973-12-19 1975-07-18 Bbc Brown Boveri & Cie Insulating spacers for transformers or chokes - prismatic bars have cross-sections deviating from polygons by cut outs
DE2432919A1 (de) * 1974-07-05 1976-02-12 Siemens Ag Stromwandler nach dem prinzip des magnetischen spannungsmessers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004022043B3 (de) * 2004-05-03 2005-06-09 Rudolf Michael Gmbh Spulengerüst oder Spulengerüst-Bausatz
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

Also Published As

Publication number Publication date
DK152463B (da) 1988-02-29
NO155948C (no) 1987-06-24
EP0037500B1 (fr) 1985-09-04
FI810882L (fi) 1981-09-22
DK127381A (da) 1981-09-22
FI71038B (fi) 1986-07-18
NO810974L (no) 1981-09-22
US4429294A (en) 1984-01-31
DE3172103D1 (en) 1985-10-10
FI71038C (fi) 1986-10-27
DK152463C (da) 1988-08-01
NO155948B (no) 1987-03-16

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