EP0077050B1 - Dispositif de fixation pour noyaux annulaires pourvus d'enroulements - Google Patents

Dispositif de fixation pour noyaux annulaires pourvus d'enroulements Download PDF

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Publication number
EP0077050B1
EP0077050B1 EP82109344A EP82109344A EP0077050B1 EP 0077050 B1 EP0077050 B1 EP 0077050B1 EP 82109344 A EP82109344 A EP 82109344A EP 82109344 A EP82109344 A EP 82109344A EP 0077050 B1 EP0077050 B1 EP 0077050B1
Authority
EP
European Patent Office
Prior art keywords
holding device
plate
holding
toroidal
windings
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
EP82109344A
Other languages
German (de)
English (en)
Other versions
EP0077050A1 (fr
Inventor
Albert Duin
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.)
Wilhelm Sedlbauer GmbH
Original Assignee
Wilhelm Sedlbauer GmbH
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6143783&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0077050(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Wilhelm Sedlbauer GmbH filed Critical Wilhelm Sedlbauer GmbH
Priority to AT82109344T priority Critical patent/ATE17899T1/de
Publication of EP0077050A1 publication Critical patent/EP0077050A1/fr
Application granted granted Critical
Publication of EP0077050B1 publication Critical patent/EP0077050B1/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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
    • 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
    • H01F27/24—Magnetic cores
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H01F27/266—Fastening or mounting the core on casing or support

Definitions

  • the present invention relates to a holding device for toroidal cores provided with windings. the preamble of claim 1.
  • Toroidal cores provided with windings are not easy to attach because on the one hand they are relatively heavy and on the other hand they do not permit immediate mechanical attachment, since the inherently stable toroid is completely surrounded by a winding, possibly in many layers , so that a bracket on the winding would have to attack.
  • the toroid must be very rigid and absolutely fixed in relation to other components in order to connect the winding ends with other fixed circuit parts, generally to be able to solder, since any relative movement between these parts would necessarily lead to damage.
  • a holding device in the form of an open-sided annular trough is known, which is adapted in its dimensions to the size of the toroid including the thickness of the winding, so that the inner wall in the form of a hollow cylinder as Centering mandrel for the wound toroid acts on which it is held by means of a casting compound.
  • the core-housing unit can then be held via the hollow cylinder, e.g. screwed to a circuit board.
  • a holding device of this type must provide a large assortment of housings which are difficult to store, possibly in large quantities, for various toroid types and / or windings of different strengths, and each individual housing - as long as it is empty - can easily be damaged.
  • the ring core is often clamped between two plates provided with an elastic layer towards the ring core and the plates or the ones guided through the plates are simultaneously clamped Tensioning the plate taking over pin is attached to the corresponding device or the circuit parts.
  • This type of attachment allows the toroid to be fixed on other circuit parts, e.g. to be attached to printed circuit boards or the like.
  • the plates In view of the existing weight of the toroid itself, the plates must be braced relatively strongly against each other, which has a disadvantageous effect on the winding of the toroid itself in a correspondingly high pressure. This can damage the paint insulation of the individual turns relatively easily. Especially because the holder is exposed to relatively large temperature fluctuations.
  • the object of the invention is to provide a holding device for toroidal cores provided with windings, which is simple in construction, which enables the immediate attachment of the toroidal cores on any holding devices, circuit boards etc. and which is designed so that the toroidal core is kept practically free of pressure.
  • the holding device should be suitable for the direct attachment of connecting pins, soldering lugs, etc., in order to enable the toroidal cores to also be attached to printed circuit boards or the like (so-called print attachment).
  • the carrier part is thus formed by a circular disk-shaped plate which can be secured against twisting and, like the known housing-like holding parts, is provided with a centering mandrel which penetrates the interior of the ring core and on which the wound ring core is held by means of a casting compound .
  • the teaching according to the invention to adapt the plate to the outer diameter of the wound toroid initially means that the plate should not have a smaller diameter than the wound toroid in order to avoid mechanical damage to the outside of the winding.
  • the carrier plate itself is to be used as a holder for connection options such as soldering pins, soldering lugs or the like
  • the diameter must be adapted to the outer diameter of the toroidal core in such a way that a correspondingly projecting edge remains, in which according to the mentioned development the connection flags attached, e.g. are injected or can be used in the openings provided.
  • the wound toroidal core provided with a carrier plate can be fastened, in particular screwed, directly to the corresponding devices or circuit boards via an opening in the centering mandrel.
  • a threaded holding part preferably a hexagon nut
  • this has, according to another development, supports on its outer side facing away from the ring core, and preferably in the form small support feet.
  • the supports can of course also be designed in the form of radial webs, etc., into which holding parts with a holding thread (simple hexagon nuts) are also introduced, e.g. can be cast in.
  • a holding device according to the invention with a wound toroidal core 1 attached thereon is shown in elevation in a sectional view.
  • the holding device consists of a carrier plate 2, which merges in the region of the inner recess of the wound toroidal core 1 into a centering mandrel which, as can be seen from the drawing, is designed as a hollow cylinder.
  • the wound toroidal core 3 is placed on this unit consisting of carrier plate 2 and centering mandrel 3 and is fastened and held by means of a casting compound 4.
  • the carrier plate 2 has a bore 5 which allows access for a screw bolt or the like to a cast-in hexagon nut 6.
  • the holding device designed in this way can, for example, from below by means of a simple screw bolt onto a plane or even perpendicular one.
  • Carrier plate can be screwed without the need for special tools.
  • support feet 8 are provided on the underside of the support plate.
  • FIG. 2 shows a top view of the embodiment of the holding device according to FIG. 1, the wound toroidal core 1 being removed. From Figure 2 it can be seen that a total of 4 support feet are provided.
  • FIG. 3 shows another embodiment of the holding device according to the invention in an elevation sectional view (FIG. 3) and in a top view (FIG. 4).
  • 2 holes 8 are provided near the periphery of the carrier plate, into which solder pins 10 can be used if necessary, on which the connecting wires of the winding (s) of the toroidal core and the wiring with further components or assemblies can be made.
  • a carrier plate 2 is selected with a diameter which is so large that the soldering pins which may be used come to lie outside the area which is occupied by a wound toroid.
  • hexagon retaining lugs can also be cast in, screws with their heads or the like in order to be able to fasten the holding device equipped with the ring core in a device, on a printed circuit board or the like.
  • FIG. 5 shows a further modified embodiment of the holding device according to the invention in elevation in a sectional view.
  • a ring 11 made of an elastic material is provided on the side of the carrier plate 2 facing the wound ring core 1. This measure is particularly advantageous when the carrier plate is relatively stiff and the surface of the windings on the toroidal core are uneven because this results in a uniform contact pressure.
  • FIG. 5 shows how the helte device can be screwed, for example, to a housing wall 15, in which a bore 16 is made in this housing wall, through which a screw bolt 13, which is guided from above through the centering mandrel, is inserted, onto which from below a retaining nut 14 is screwed on.
  • FIG. 6 A view of a holding plate with such recesses 12 and 12 'is shown in FIG. 6, the view being selected in accordance with arrow VI in FIG. 5.
  • the carrier plate with the centering mandrel is preferably made of a castable plastic, in particular with a polystyrene modified with butadiene and acrylonitrile, as is for example marketed under the trademark Terluran. It may be particularly advisable to press in reinforcing inserts, for example in the form of glass or carbon fibers, etc., in the case of toroidal cores with a very large iron core, in order to give the carrier plate a strength which is adapted to the particular circumstances and operating conditions. A reinforcement is recommended, for example, if the holding device is particularly stressed by shocks or other influences when used on vehicles, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Claims (8)

1. Dispositif de fixation réalisé en matière plasti- que, pour des noyaux annulaires (1) munis d'enroulements qui est constitué par un élément de support (2), adapte 5 au diamètre extérieur du noyau annulaire bobiné (1) et comportant un mandrin de centrage (3) disposé de façon centree sur l'élément de support et pénètrant à l'intérieur du noyau annulaire et réalisé de préférence sous la forme d'un cylindre creux et sur lequel le noyau annulaire bobiné est maintenu au moyen d'une masse de scellement (4), caractérisé par le fait que l'élément de support (2) est réalisé sous la forme d'une plaque en forme de disque circulaire qui comporte des moyens (8,12) servant à empecher, lors de la fixation du dispositif de fixation sur un support (15), une rotation du dispositif de fixation par rapport à ce support.
2. Dispositif de fixation suivant la revendication 1, caractérisé par le fait qu'un organe de retenue comportant un filetage de retenue, de préférence un écrou à six pans creux (6),est fixé par scellement dans la plaque (2).
3. Dispositif de fixation suivant la revendication 2, caractérisé par le fait que l'organe de retenue est réalisé par moulage au centre de la plaque (2).
4. Dispositif de fixation suivant l'une des reven- dications 1-3, caractérisé par le fait que la plaque (2) comporte des organes d'appui (8) sur sa face tournée à l'opposé du noyau annulaire (1).
5. Dispositif de fixation suivant l'une des revendications précédentes, caractérisé par le fait qu'il est prevu des ouvertures (9) servant à recevoir des plots de soudage (10), des languettes de raccordement ou analogues, sur le bord extérieur de la plaque (2).
6. Dispositif de fixation suivant la revendication 5, caractérisé par le fait que les plots de soudure (10), les languettesde raccordement ouanalogue sont prévus sur un anneau concentrique à proximité du bord extérieur.
7. Dispositif de fixation suivant l'une des revendications 1 à 4, caractérisé par le fait qu'un anneau (11) en matériau élastique est prévu sur la face de la plaque (2), tournée vers le noyau annulaire (1).
8. Dispositif de fixation suivant l'une des revendications precédentes, caractérisé par le fait qu'il est prévu, comme moyen empêchant une rotation, sur le pourtour de la plaque (2), au moyen d'un évidement (12) dans lequel s'engage un bec de retenue monté sur le support (15).
EP82109344A 1981-10-09 1982-10-08 Dispositif de fixation pour noyaux annulaires pourvus d'enroulements Expired EP0077050B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82109344T ATE17899T1 (de) 1981-10-09 1982-10-08 Haltevorrichtung fuer mit wicklungen versehene ringkerne.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813140221 DE3140221A1 (de) 1981-10-09 1981-10-09 Haltevorrichtung fuer mit wicklungen versehene ringkerne
DE3140221 1981-10-09

Publications (2)

Publication Number Publication Date
EP0077050A1 EP0077050A1 (fr) 1983-04-20
EP0077050B1 true EP0077050B1 (fr) 1986-02-05

Family

ID=6143783

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82109344A Expired EP0077050B1 (fr) 1981-10-09 1982-10-08 Dispositif de fixation pour noyaux annulaires pourvus d'enroulements

Country Status (3)

Country Link
EP (1) EP0077050B1 (fr)
AT (1) ATE17899T1 (fr)
DE (2) DE3140221A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0137867A1 (fr) * 1983-10-17 1985-04-24 Wilhelm Sedlbauer GmbH Dispositif de fixation de noyaux toroidaux enroulés
JP2015204361A (ja) * 2014-04-14 2015-11-16 矢崎総業株式会社 コイル固定構造

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3210701A (en) * 1962-05-14 1965-10-05 Automatic Elect Lab Wound toroidal core shell
DE1236643B (de) * 1963-07-12 1967-03-16 Siemens Ag Messwandler in Kopfbauweise, insbesondere kunststoffisolierter Stromwandler
US3551864A (en) * 1969-12-12 1970-12-29 Pico Electronics Inc Miniature inductive devices
NO750330L (fr) * 1974-02-05 1975-08-05 Vaexjoe Transduktor Ab
US4054856A (en) * 1976-09-08 1977-10-18 Sundstrand Corporation Current transformer assembly for dynamoelectric machines

Also Published As

Publication number Publication date
DE3268985D1 (en) 1986-03-20
DE3140221A1 (de) 1983-08-11
ATE17899T1 (de) 1986-02-15
EP0077050A1 (fr) 1983-04-20

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