EP0097599A1 - Elektromagnetische Vorrichtung, sowie elektrischer Transformator, vorzugsweise mit einem aus zwei Teilen bestehenden Spulenkörper - Google Patents

Elektromagnetische Vorrichtung, sowie elektrischer Transformator, vorzugsweise mit einem aus zwei Teilen bestehenden Spulenkörper Download PDF

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Publication number
EP0097599A1
EP0097599A1 EP83401294A EP83401294A EP0097599A1 EP 0097599 A1 EP0097599 A1 EP 0097599A1 EP 83401294 A EP83401294 A EP 83401294A EP 83401294 A EP83401294 A EP 83401294A EP 0097599 A1 EP0097599 A1 EP 0097599A1
Authority
EP
European Patent Office
Prior art keywords
cheek
magnetic circuit
cheeks
lips
walls
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
EP83401294A
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English (en)
French (fr)
Other versions
EP0097599B1 (de
Inventor
Jean-Louis Chauveau
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.)
Legrand Deri SA
Original Assignee
Legrand SA
Legrand Deri SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9275304&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0097599(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Legrand SA, Legrand Deri SA filed Critical Legrand SA
Priority to AT83401294T priority Critical patent/ATE25443T1/de
Publication of EP0097599A1 publication Critical patent/EP0097599A1/de
Application granted granted Critical
Publication of EP0097599B1 publication Critical patent/EP0097599B1/de
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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306—Fastening or mounting coils or windings on core, casing or other support
    • 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 an electromagnetic device such as an electrical transformer, of the type comprising a carcass in two parts each provided with a tubular body, the body of one of the two parts being disposed inside the body of the other, this internal body being adapted to receive between its internal walls a segment of magnetic circuit, and the part comprising the external body being provided with at least two returns being made on either side of a another segment of the magnetic circuit, substantially in the extension of the internal walls of the internal body taking place: also opposite.
  • an electromagnetic device such as an electrical transformer, of the type comprising a carcass in two parts each provided with a tubular body, the body of one of the two parts being disposed inside the body of the other, this internal body being adapted to receive between its internal walls a segment of magnetic circuit, and the part comprising the external body being provided with at least two returns being made on either side of a another segment of the magnetic circuit, substantially in the extension of the internal walls of the internal body taking place: also opposite.
  • Such devices are already known, provided with carcasses in two parts which can be fitted one inside the other, in particular carcasses intended for magnetic circuits formed by a stack of sheets enEclosed by a stack of rectilinear bars, the two parts each comprising two cheeks between which a winding is wound, one of the cheeks of each part being provided with one or two rows of lug-carrying compartments protruding outside the carcass.
  • This two-part design makes it possible to produce the two primary and secondary windings independently of one another, and, consequently, to provide, for the same type of carcass, a range of primaries and a range of secondaries which can be combined. according to a large number of distinct combinations meeting the individual wishes of users, industrial or private.
  • the sheets are held in place by pinching. Unfortunately, if one of the two stacks has a smaller thickness than the other, the sheets constituting it tend to separate from the carcass.
  • the carcasses do not allow the transformer connection wires to be taken out to external circuits either on the same cheek (on one edge of the cheek for the primary and on the opposite edge for the secondary) as on different cheeks (but on edges on the same side, one being assigned for example to primary and the other to secondary).
  • the invention aims to remedy these drawbacks and for this purpose relates to an electromagnetic device such as an electrical transformer of the kind comprising a carcass in two parts each provided with a tubular body, the body of one of the two parts being disposed inside the body of the other, this interior body being adapted to receive between its interior walls a segment of magnetic circuit, and the part comprising the exterior body being provided with at least two returns being made opposite -vis on either side of another segment of the magnetic circuit, substantially in the extension of interior walls of the interior body also being opposite, device characterized in that at least one of said interior walls facing each other and at least one of said returns are provided with lips for maintaining their respective magnetic circuit segment.
  • an electromagnetic device such as an electrical transformer of the kind comprising a carcass in two parts each provided with a tubular body, the body of one of the two parts being disposed inside the body of the other, this interior body being adapted to receive between its interior walls a segment of magnetic circuit, and the part comprising the exterior body being provided with at least two returns being made opposite -vis on
  • the tightening of the two stacks constituting the magnetic circuit is obtained independently, which is particularly advantageous if these two stacks are of different thicknesses, for example by following the presence of an additional sheet in one of the stacks, or tolerances on the thickness of the sheets.
  • cheeks linked to the external body are each provided on one edge with a plurality of passage slots for connection wires of a winding carried by this external body, the two edges provided with a plurality of slits being near opposite walls of the body, and an outer cheek connected to the inner body is provided in its edge placed against an edge provided with slits of the other carcass part, with a notch freeing said slits, and in its opposite edge, of a plurality of slots partially clearing the space between the two bodies for the passage of connection wires of a winding carried by the inner body.
  • connection wires from the winding of the external body both on one cheek and on the other, which allows mounting of the transformer both horizontally and vertically, and the Winding outputs, even if not intrinsically isolated, have considerable insulation resistance from one winding to the other.
  • two cheeks linked respectively to the inner body and to the outer body are placed one against the other, and these two cheeks have latching means constituted by pins and opposite holes, said nipples of one cheek being snapped into the holes of the other cheek, which allows rapid and practical assembly of the two parts of the carcass.
  • the carcass shown in the drawings is intended for an electromagnetic device such as an electrical transformer. It is made in two parts A, B each provided with a tubular body having a cross section of generally rectangular shape and two cheeks extending in a plane perpendicular to the central axis common to the two bodies tubular, each at one end of said body.
  • the tubular body 1 of one of the two parts has an outer straight section of smaller dimensions than the inner straight section of the tubular body 2 of the other part so that it can be housed inside this body 2.
  • Part A having a body 1 of smaller dimensions than those of the body 2 of part B is provided with two cheeks 3, 4, of generally rectangular shape extending only towards the outside of the body 1, of which l one has external dimensions barely smaller than those of the internal cross section of the body 2, so that this cheek can also be housed inside, and can be guided there during the fitting of the two bodies, with very little play;
  • the other cheek 4 has a substantially larger dimension, and here its dimensions are greater than those of the outer section of the body 2;
  • the small cheek 3 comprises, perpendicular to its plane, two parallel returns 31 extending two opposite walls of the body 1 so that the faces facing the returns 31 continuously extend the internal faces also facing -vis of these opposite walls.
  • Part B has two cheeks 5; 6 of general shape also rectangular; the cheek 5 extends both towards the inside and the outside of the body 2, so that it can serve as a stop for the corresponding cheek 3 of part A; however, the internal dimensions of the cheek 5 are not less than the corresponding dimensions of the internal section of the body 1, so as not to limit the dimensions of the stack - magnetic more than the latter; as a result of the existence of the returns 31 of the small cheek 3 of the body 1, the two corresponding edges of the cheek 5 are even spaced a distance slightly greater than that separating the external faces of these returns 31, so that these can be fitted inside the cheek 5; the length of the returns 31 is sufficiently realized weak so that these do not exceed the plane of the external face of the cheek 5; the other cheek 6 extends only towards the outside of the body 2; here it has external dimensions identical to those of the cheek 5 and serves as a stop for the corresponding cheek 4 of the body 1; moreover, it comprises a housing for this cheek 4, with a view to preventing any transverse movement of the cheek 4 of the part
  • Each of the two parts A, B constituting the carcass is intended to serve as a support for a winding wound around its body 1, 2, between its cheeks, which serve to maintain the winding in position.
  • part A having a body 1 of smaller dimensions can receive for example the primary of a transformer, and part B receive the secondary (or vice versa).
  • part A can also receive and immobilize, inside its body 1, the central branches of stacked E-sheets, by clamping them effectively, the internal face of one of the walls of the body has oblique lips 14 deformable extending longitudinally, parallel to the central axis of the carcass; the wall of the body which includes such lips is one of the two walls which is parallel to the stacked sheets, while the walls which are extended by returns 31 intended to be fitted inside the cheek 5 of the other part B are the walls perpendicular to said sheets.
  • the cheek 5 of part B which serves as a stop for the small cheek 3 of the part A comprises, on two opposite edges of its four edges, perpendicular to its plane, two respective parallel returns 51, one of which is provided with deformable lips 15; these returns 51 are located in the extension of the two opposite walls of the body 1, one of which is provided with lips 14, and the faces facing these returns 51 continuously extend the internal faces also facing these two opposite walls; the lips 15 are arranged obliquely and extend longitudinally, parallel to the central axis of the carcass.
  • That of the returns 51 which includes lips 15 is that which is in the extension of the wall of the body 1 itself comprising lips 14.
  • the lips 14, 15 of the two parts A, B can be in the extension of each other . It is also possible to provide lips on two opposite walls of the body 1 and on the two cheek returns 5.
  • the slope of the lips 14, 15 notably facilitates the insertion of the stacks of sheets, which are. at the end of this insertion, maintained independently, which makes it possible to accept possible differences in thickness between the stack of E-sheets and the stacking of straight bars.
  • the number of lips of each part of the carcass (here, there are two on each) is preferably even, the lips then being arranged symmetrically with respect to the longitudinal axis of the internal face of the aroi or of the return on which they are made.
  • the large cheek 4 of part A of the carcass provided with an internal body 1 has, in two opposite edges of its four edges, openings for the passage of the connection wires of the windings.
  • One of these openings is made for example in the edge corresponding to the wall provided with oblique lips (or the opposite edge), in the form of a notch 10 extending over almost the entire length of this edge (without in however reach the ends); the height of this notch 10 is such that, when the two parts A, B are nested, it does not release the space between the bodies 1, 2, at least partially occupied by a winding.
  • the edge opposite to the previous one is provided, like a comb, with a plurality of slots 11 (here five slots) extending parallel to each other of the edge outside of this edge to the external face of the wall of the body 1.
  • the two cheeks 5, 6 of part B are provided, in one of their edges only, in the manner of a comb, with a plurality of slots 12 (here five slots) extending parallel to each other others from the outer edge of this edge to the outer face of the wall of the body 2;
  • the split edge of the cheek 5 is one of the two edges having a return 51 in the extension of a wall of the body 1
  • the split edge of the cheek 6 is that which is located on the same side as the opposite wall of the body 1, so that this split edge of the cheek 6 is that which is intended to serve as a stop at the edge of the large cheek 4 of the part A carrying a notch lO.
  • the four edges of the small cheek 3 of part A, B and the other two opposite edges of the large cheek 4 do not have such openings.
  • three edges of each of the cheeks 5, 6 of part B do not have either. It will be noted that, given the presence or absence of openings on the edges of the cheeks, and the shape of these openings, all the cheeks are asymmetrical with the exception of the small cheek 3 of part A.
  • the cheek 5 of part B is provided with ribs 52 perpendicular to its plane and to said returns 51, extending in a triangle from the end of the return to the end of the edge who wears it; with regard to the split edge of this cheek, the ribs extend parallel to the slots 12, at the rate of a rib between two successive slots, with an additional rib at each of the two ends of the comb so that each slot is between two ribs 52; thus the teeth delimited by the slots 12 also have better mechanical strength, and the electrical insulation between the wires of the windings and especially between the connection terminals is increased.
  • edges provided with openings of the cheek 4 of the part A have a return 41 perpendicular in the plane of the cheek and in the extension of the body 1, and ribs 42 arranged in the same way as the ribs 52 of the cheek 5 also so that each opening is between two ribs 42.
  • the wires of the body winding 1 and those of the body winding 2 intended to be connected to external circuits can be taken out either on the same cheek 4 of part A, or on the cheek 4 for the wires. of the winding of the inner body 1 and on the cheek 5 for those of the winding of the outer body 2.
  • terminals such as screw terminals can be mounted in correspondence with each of the slots 11, 12.
  • Latching means are provided on the two parts A, 'B of the carcass, symmetrically.
  • These snap-fastening means consist of pins 16 provided on the cheek 6 in projection towards the outside of part B of the carcass, and holes 17 provided in the cheek 4 of part A, symmetrically with respect to the central axis of the carcass.
  • the two parts A, B are therefore fitted one inside the other and snapped on at the end of the stroke, so as to have either the primary and secondary outputs on the same cheek and isolated from each other. to the other, which makes it possible to route non-insulated wires from one winding to the other to access connection terminals without contact possible between them and even with perfect insulation (case of transformers in vertical mounting), or the primary and secondary outputs on two different cheeks, but in the same alignment with, of course, always the same perfection of isolation (case of flat transformers).

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Insulating Of Coils (AREA)
EP83401294A 1982-06-23 1983-06-22 Elektromagnetische Vorrichtung, sowie elektrischer Transformator, vorzugsweise mit einem aus zwei Teilen bestehenden Spulenkörper Expired EP0097599B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83401294T ATE25443T1 (de) 1982-06-23 1983-06-22 Elektromagnetische vorrichtung, sowie elektrischer transformator, vorzugsweise mit einem aus zwei teilen bestehenden spulenkoerper.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8210978A FR2529375A1 (fr) 1982-06-23 1982-06-23 Dispositif electromagnetique tel que transformateur electrique, du genre comportant une carcasse en deux parties
FR8210978 1982-06-23

Publications (2)

Publication Number Publication Date
EP0097599A1 true EP0097599A1 (de) 1984-01-04
EP0097599B1 EP0097599B1 (de) 1987-02-04

Family

ID=9275304

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83401294A Expired EP0097599B1 (de) 1982-06-23 1983-06-22 Elektromagnetische Vorrichtung, sowie elektrischer Transformator, vorzugsweise mit einem aus zwei Teilen bestehenden Spulenkörper

Country Status (4)

Country Link
EP (1) EP0097599B1 (de)
AT (1) ATE25443T1 (de)
DE (1) DE3369767D1 (de)
FR (1) FR2529375A1 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0162488A1 (de) * 1984-04-13 1985-11-27 Koninklijke Philips Electronics N.V. Transformator mit koaxialen Spulenkörpern
US4617543A (en) * 1984-01-26 1986-10-14 Tdk Corporation Coil bobbin
EP0230811A2 (de) * 1986-01-24 1987-08-05 Valeo Electronique Zündspule mit geschlossenem magnetischem Kreis
FR2593962A1 (fr) * 1986-01-24 1987-08-07 Ducellier & Cie Bobine d'allumage a circuit ferme
FR2602087A2 (fr) * 1986-07-23 1988-01-29 Ducellier & Cie Bobine d'allumage a circuit ferme
US4967121A (en) * 1987-05-27 1990-10-30 Rca Licensing Corporation Isolating high voltage transformer for video apparatus
FR2646555A1 (fr) * 1989-04-28 1990-11-02 Marchal Equip Auto Moyens d'assemblage des bobineaux secondaires d'une bobine multiple d'allumage, en particulier pour moteur a combustion interne de vehicule automobile
WO1994028561A1 (en) * 1993-05-31 1994-12-08 Tokin Corporation A bobbin capable of reliably insulating a first coil from a second coil
WO1996025752A1 (en) * 1995-02-15 1996-08-22 Electronic Craftsmen Limited Transformer and method of assembly
US6046663A (en) * 1994-05-30 2000-04-04 Kawatetsu Electric Engineering Co., Ltd. Transformer and coil bobbin therefor
CN107221419A (zh) * 2015-03-04 2017-09-29 江苏理工学院 开关变压器的骨架及开关电源

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1325184A (fr) * 1962-04-26 1963-04-26 Landis & Gyr Sa Corps de bobine
FR1331309A (fr) * 1957-03-29 1963-07-05 Videon Soc Perfectionnements apportés aux carcasses de bobinages
DE1514482A1 (de) * 1965-06-22 1969-05-22 Siemens Ag Wicklungskoerper fuer eine elektrische Spulenanordnung mit einem Schalenkern
DE1937751A1 (de) * 1969-07-25 1971-02-04 Widmann Kg Walter Spritzgussteil mit gewindetragenden Bohrungen,insbesondere Kunststoff-Spulenkoerper fuer Hochfrequenzspulen mit Schraubkernaufnahme,und Vorrichtung zur Herstellung desselben
GB1250827A (de) * 1969-06-16 1971-10-20
FR2177863A1 (de) * 1972-03-25 1973-11-09 Philips Nv
FR2233694A1 (fr) * 1973-06-12 1975-01-10 Clarel Sa Procede de fabrication d'un dispositif a induction electrique aplusieurs enroulements et produit obtenu par ce procede
DE2350657A1 (de) * 1973-10-09 1975-04-17 Heibl Gmbh Apparatebau W Spulenkoerper
DE2838174A1 (de) * 1978-09-01 1980-03-13 Philips Patentverwaltung Hochspannungsspule fuer einen hochspannungstransformator
US4257027A (en) * 1978-11-27 1981-03-17 Shimoda Electric Company Transformer bobbin assembly
FR2494889A1 (fr) * 1980-11-25 1982-05-28 Legrand Sa Carcasse pour transformateur

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1331309A (fr) * 1957-03-29 1963-07-05 Videon Soc Perfectionnements apportés aux carcasses de bobinages
FR1325184A (fr) * 1962-04-26 1963-04-26 Landis & Gyr Sa Corps de bobine
DE1514482A1 (de) * 1965-06-22 1969-05-22 Siemens Ag Wicklungskoerper fuer eine elektrische Spulenanordnung mit einem Schalenkern
GB1250827A (de) * 1969-06-16 1971-10-20
DE1937751A1 (de) * 1969-07-25 1971-02-04 Widmann Kg Walter Spritzgussteil mit gewindetragenden Bohrungen,insbesondere Kunststoff-Spulenkoerper fuer Hochfrequenzspulen mit Schraubkernaufnahme,und Vorrichtung zur Herstellung desselben
FR2177863A1 (de) * 1972-03-25 1973-11-09 Philips Nv
FR2233694A1 (fr) * 1973-06-12 1975-01-10 Clarel Sa Procede de fabrication d'un dispositif a induction electrique aplusieurs enroulements et produit obtenu par ce procede
DE2350657A1 (de) * 1973-10-09 1975-04-17 Heibl Gmbh Apparatebau W Spulenkoerper
DE2838174A1 (de) * 1978-09-01 1980-03-13 Philips Patentverwaltung Hochspannungsspule fuer einen hochspannungstransformator
US4257027A (en) * 1978-11-27 1981-03-17 Shimoda Electric Company Transformer bobbin assembly
FR2494889A1 (fr) * 1980-11-25 1982-05-28 Legrand Sa Carcasse pour transformateur

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4617543A (en) * 1984-01-26 1986-10-14 Tdk Corporation Coil bobbin
EP0162488A1 (de) * 1984-04-13 1985-11-27 Koninklijke Philips Electronics N.V. Transformator mit koaxialen Spulenkörpern
US4596974A (en) * 1984-04-13 1986-06-24 U.S. Philips Corporation Transformer comprising coaxial coil formers
EP0230811A2 (de) * 1986-01-24 1987-08-05 Valeo Electronique Zündspule mit geschlossenem magnetischem Kreis
FR2593962A1 (fr) * 1986-01-24 1987-08-07 Ducellier & Cie Bobine d'allumage a circuit ferme
EP0230811A3 (en) * 1986-01-24 1988-07-27 Ducellier Et Cie Ignition coil with a closed magnetic circuit
FR2602087A2 (fr) * 1986-07-23 1988-01-29 Ducellier & Cie Bobine d'allumage a circuit ferme
US4967121A (en) * 1987-05-27 1990-10-30 Rca Licensing Corporation Isolating high voltage transformer for video apparatus
FR2646555A1 (fr) * 1989-04-28 1990-11-02 Marchal Equip Auto Moyens d'assemblage des bobineaux secondaires d'une bobine multiple d'allumage, en particulier pour moteur a combustion interne de vehicule automobile
WO1994028561A1 (en) * 1993-05-31 1994-12-08 Tokin Corporation A bobbin capable of reliably insulating a first coil from a second coil
CN1085390C (zh) * 1993-05-31 2002-05-22 株式会社东金 能使初级线圈与次级线圈可靠绝缘的线圈架
US6046663A (en) * 1994-05-30 2000-04-04 Kawatetsu Electric Engineering Co., Ltd. Transformer and coil bobbin therefor
US6320492B1 (en) 1994-05-30 2001-11-20 Wb Transformer Corporation Transformer and coil bobbin therefor
WO1996025752A1 (en) * 1995-02-15 1996-08-22 Electronic Craftsmen Limited Transformer and method of assembly
US5726616A (en) * 1995-02-15 1998-03-10 Electronic Craftsmen Limited Transformer with plural bobbins
US5996214A (en) * 1995-02-15 1999-12-07 Electronic Craftsmen Method of assembling a transformer
CN107221419A (zh) * 2015-03-04 2017-09-29 江苏理工学院 开关变压器的骨架及开关电源
CN107221419B (zh) * 2015-03-04 2019-03-19 江苏理工学院 开关变压器的骨架及开关电源

Also Published As

Publication number Publication date
ATE25443T1 (de) 1987-02-15
FR2529375B1 (de) 1985-01-25
FR2529375A1 (fr) 1983-12-30
DE3369767D1 (en) 1987-03-12
EP0097599B1 (de) 1987-02-04

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GBPC Gb: european patent ceased through non-payment of renewal fee
GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state
IECL Ie: translation for ep claims filed