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EP3803923B1 - Composant inductif et son procédé de fabrication - Google Patents

Composant inductif et son procédé de fabrication Download PDF

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Publication number
EP3803923B1
EP3803923B1 EP19727378.2A EP19727378A EP3803923B1 EP 3803923 B1 EP3803923 B1 EP 3803923B1 EP 19727378 A EP19727378 A EP 19727378A EP 3803923 B1 EP3803923 B1 EP 3803923B1
Authority
EP
European Patent Office
Prior art keywords
sections
leg
inductive component
shape
opening
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.)
Active
Application number
EP19727378.2A
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German (de)
English (en)
Other versions
EP3803923A1 (fr
EP3803923C0 (fr
Inventor
Harald Hundt
Björn STUWE
Johannes Beichler
Klemens Trabold
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.)
Vacuumschmelze GmbH and Co KG
Original Assignee
Vacuumschmelze GmbH and Co KG
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Application filed by Vacuumschmelze GmbH and Co KG filed Critical Vacuumschmelze GmbH and Co KG
Publication of EP3803923A1 publication Critical patent/EP3803923A1/fr
Application granted granted Critical
Publication of EP3803923B1 publication Critical patent/EP3803923B1/fr
Publication of EP3803923C0 publication Critical patent/EP3803923C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type
    • H01F17/04—Fixed inductances of the signal type with magnetic core
    • H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
    • H01F17/062—Toroidal core with turns of coil around it
    • 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
    • H01F27/2895—Windings disposed upon ring cores
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H01F1/15333—Amorphous metallic alloys, e.g. glassy metals containing nanocrystallites, e.g. obtained by annealing
    • 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
    • H01F27/25—Magnetic cores made from strips or ribbons
    • 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
    • H01F27/303—Clamping coils, windings or parts thereof together
    • 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
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/08—Winding conductors onto closed formers or cores, e.g. threading conductors through toroidal cores

Definitions

  • the invention relates to an inductive component and a method for its production.
  • toroidal cores and inductive components having thick wire windings the mechanical stress on the toroidal cores is high due to the winding tension that occurs during winding.
  • the wire In order to ensure that the wires fit snugly, the wire must be pulled taut as it is pulled through the toroidal core. The forces that occur are essentially absorbed by the edges of the toroidal core.
  • the toroidal core itself or a housing encasing it must therefore have an appropriate strength in order to avoid damage to the toroidal core or other impairments. Since toroidal cores have to have a small volume and be highly permeable in numerous areas of application, the core material must be protected from the forces acting on it with regard to magnetostriction.
  • the housing or other casing should be self-supporting and absorb the forces occurring during winding without deforming and without passing the forces on to the toroidal core.
  • inductive components which have a core and a winding made up of a large number of sections connected to one another are given in the publications DE 38 32 659 A1 , DE 10 2016 210746 A1 , U.S. 2010/253459 A1 , WO 2017/141838 A1 described.
  • WO 2015/158200 A1 , U.S. 2012/326820 A1 , EP 3 214 750 A1 , DE 10 2004 001255 A1 , and DE 10 2009 046570 A1 disclose further inductive components.
  • An inductive component which has a core made of soft magnetic material in the form of a ring, which core has a core cross-section, and a winding which surrounds the core and is composed of two electrically conductive sections.
  • the sections each have a basic U-shape with two legs, of which the first leg is longer than the second leg and the first leg is curved and towards its end projects away from a plane spanned by the basic U-shape.
  • the sections are placed side by side on the core so that the basic U-shape of each section surrounds the core cross-section on three sides.
  • the first leg of one section is mechanically and electrically connected to the second leg of the other section.
  • the ends of the first leg of one of the sections and the second leg of the other of the sections can be plugged into one another.
  • the first leg of one of the sections is flattened at its end and has an opening of a specific shape.
  • the second branch of the other of the sections has at its end a shape complementary to the particular shape of the opening, so that the second branch of the other of the sections is inserted in the opening of the first branch of one of the sections.
  • a method for producing an inductive component in which two electrically conductive sections are placed next to one another, forming a winding, on a core made of soft magnetic material in the form of a ring and having a core cross section placed on the core so that the basic U-shape of each section surrounds the core cross-section on three sides
  • the sections each have a basic U-shape with two legs, of which the first leg is longer than the second leg and the first leg is curved and towards its end stands away from a plane spanned by the basic U-shape.
  • the first leg of one section is mechanically and electrically connected to the second leg of the other section.
  • the ends of the first leg of one of the sections and the second leg of the other of the sections can be plugged into one another.
  • the first leg of one of the sections is flattened at its end and an opening of specified shape is made in the flat.
  • the second leg of the other of the sections has at its end a shape complementary to the particular shape of the opening and the second leg of the other of the sections is inserted in the opening of the first leg of one of the sections.
  • ring core or just core for short
  • connection technique to form a winding become.
  • These conductor pieces can be formed, for example, by basically U-shaped or UI-shaped brackets, the type of conductor pieces and the manner of use in detail depending on the spatial structure and the number of connection points.
  • the connection technology is easy to implement and inexpensive if only the smallest possible number of connection points is provided and the connection points are on the outer circumference of the toroidal core.
  • connection points per turn i.e. exactly one connection point per turn
  • this can be achieved, for example, by a U-shaped bracket and a bend after attachment.
  • this bending step usually takes place over the edge of the toroidal core, which in turn involves an impermissible action of force on the toroidal core.
  • a specially shaped conductor bracket is used, which is placed on the toroidal core and, if necessary, brought into the position for one turn by rotating it with as little force as possible for the toroidal core.
  • the toroidal core has, for example, amorphous or nanocrystalline material and, for example, the shape of a ribbon or is made entirely of this.
  • the band can have a permeability of between 200 and 150,000 inclusive, for example.
  • connection technology is also important. A winding is no longer reliable if there is just one insufficient connection point, up to the point where the entire component fails.
  • Each connection point is a combination of a mechanical function, i.e. stable positioning of the conductors, and an electrical function, i.e. establishing and maintaining a permanently low-impedance electrical contact.
  • the aim here is an electrical connection point in which the mechanical and electrical functions can be set largely independently or separately from one another.
  • N nestable loops each of which forms one turn, can be put together to form a continuous winding with N turns.
  • FIG. 13 shows, in a three-dimensional view, an example of such a single bracket 100 in an approximately U-shape, having two terminations 101 and 102 at the ends of two legs 103 and 104 of the U-shape.
  • the U-shape of the bracket can be square or round or have any other configuration. A more angular shape with rounded corners is shown.
  • the leg 104 of the U-shaped bracket is longer than the other leg 103 and is approximately at the height of the end 101, i.e.
  • angles ⁇ , ⁇ may be equal to or around 90 degrees ( ⁇ 45 degrees), such as between 80 degrees and 100 degrees inclusive.
  • figure 2 shows the bracket 100 in plan view.
  • the two legs 103 and 104 are at a distance a from one another.
  • the distance a and thus the opening of the U-shape is dimensioned such that the bracket 100 can be plugged with its opening over a toroidal core with a width b.
  • bracket 100 is shown when it has been placed over a toroidal core 300 of width b.
  • the length of legs 103 and 104 is determined by height (in figure 3 not shown but in figure 4 shown as height h) of the ring core 300.
  • FIG 4 shows a three-dimensional representation of the case in which the bracket 100 and another identical bracket 100 'are placed on the toroidal core 300 and connected to each other.
  • a termination 101 of each of the brackets 100 and 100' is in the form of a round rod, while the respective other end 102 of the brackets 100 and 100' is pressed flat and is provided with a (through) opening 400 in the resulting surface , which is complementary to the rod of the conclusion 101 in terms of shape and dimensions, that is to say it corresponds or fits into one another.
  • a termination 101 of the bracket 100 is attached to the toroidal core 300 by rotating (with rotatory elastic or non-elastic deformation) the end section of the leg 104 around the other section of the leg 104 in the area of its central bend and by inserting the termination 101 of the Bracket 100 in the opening 400 of the bracket 101', which is also attached to the toroidal core 300, is connected to the latter.
  • figure 5 shows an example of a current-compensated choke, i.e. a common-mode interference suppression choke 500 (or another inductive component such as a transformer, choke, etc.), with two (identical) windings 501 and 502 constructed in the manner described above on a toroidal core 503.
  • a current-compensated choke i.e. a common-mode interference suppression choke 500 (or another inductive component such as a transformer, choke, etc.)
  • two (identical) windings 501 and 502 constructed in the manner described above on a toroidal core 503.
  • special end brackets 504 and 505 can be used, each of which is used as the first or last bracket of a winding and which each have an extended (and possibly specially designed) termination 506, as a result of which simpler electrical contacting is made possible.
  • the extended, rod-shaped terminations 506 can easily be inserted into holes in a printed circuit board and soldered, welded or clamped there to conductor tracks on the printed circuit board. All the connections between the individual brackets are on the outside of the toroidal core and are therefore easily accessible during manufacture, testing and repair of the component.
  • the common-mode interference suppression choke 500 can also have more than two windings, which are then arranged in four sectors of the toroidal core instead of in two.
  • the toroidal core encloses an inner circumference and the sections in the inner circumference can have a shape corresponding to segments of a circle, for example to enable closer winding.
  • the opening of the U-shape of the bracket are also chosen to be larger than the subsequent distance between the turns.
  • the end section of the longer leg 104 can, for example, be rotationally bent from a position X to a position Y, so that a smaller distance c is created between the windings than the distance a, whereby the sector of a turn (or the pitch of the winding) becomes smaller.
  • a (non-elastic) bending of the bracket is now necessary, but this takes place in a rotary movement of the wire to the side of the toroidal core (for example, example in the inner opening of the toroid) without significant forces acting on the toroid.
  • bracket terminations 101 and 101' shown are produced by a suitable method such as resistance welding, laser welding, soldering, hard soldering, pressing, pressing in, electrically conductive gluing or a wide variety of combinations, or an existing contact (such as by prior pressing in) can be improved.
  • the connection points between the stirrups are easy to manufacture due to the exposed, easily accessible position on the outer circumference of the core, but also easy to monitor individually by means of visual inspection and measurement of electrical properties.
  • figure 7 shows in detail the connection technology used, for example, in the in figure 4 shown arrangement can be used before connecting, that is, before the nesting.
  • the termination 101 of the bracket 100 (not fully shown in figure 7 ) is in turn designed in the form of a round rod, while the respective other end 102 of the bracket 100' (not fully shown in figure 7 ) was pressed flat.
  • the (through) opening 400 has again been made in the resulting area, which is complementary to the round rod of the closure 101 in terms of shape and dimensions.
  • the end 101 of the bracket 100 should then be inserted and guided through (possibly pressed) perpendicularly to the flattening of the end 101' in its opening 400.
  • figure 8 shows a further embodiment, in which the rod-shaped closure 101 has a recess or taper 800, which then results in a form-fitting connection in the opening 400 by pressing together, so that the brackets can be mechanically fixed to one another, and thus possibly for a subsequent (further) Connection process such as welding or soldering no longer have to be maintained.
  • figure 9 shows the two in figure 8 separately shown terminations 101 and 102 after mating. By applying pressure F to the sides of the finish 102, compression and consequent non-elastic flexing then occurs. Such a procedure also allows an alternative connection technique by soldering.
  • brackets are mechanically connected in the manner shown, but also (sufficiently) electrically connected by pressing them together, a suitable, high electric current can be sent through the entire winding, which heats the brackets by means of Joule heat. Once the soldering temperature has been reached, soldering can be carried out by feeding solder to the contact points. If the solder was applied as a paste to all contact points, it is also possible to simultaneously solder all contacts with a current pulse of a specific duration.
  • figure 10 shows an embodiment in which instead of in figure 8 recess or taper 800 shown, an elevation or thickening 1000 is formed on the end 101. Pressing already takes place when the terminations 101 and 102 are plugged together.
  • the connection technology that can then be used corresponds largely to that described above.
  • the parallel strands are associated with high production costs (long stripping time) and a somewhat larger installation space.
  • the technology presented herein provides for dividing the winding into sections, such as straps, that can be clipped (or slid) onto the core and joined together, for example, by automated soldering.
  • windings made of solid wire with a larger diameter can be applied to a toroidal core, with the special features of toroidal tape cores such as those made of highly permeable material, which are usually correspondingly sensitive to mechanical influences, being taken into account.
  • the technology allows the use of existing cores with existing plastic housings for wire gauges previously not possible due to the stress of winding from the pressure on the toroid.
  • this special type of "wrapping" is practically stress-free and energy-free.
  • the wire diameter used can be of any size and is theoretically only limited by the inner diameter of the core and the number of stirrup segments used.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Coils Or Transformers For Communication (AREA)

Claims (26)

  1. Composant inductif (500) avec :
    un noyau (300 ; 503) en matériau magnétique doux comprenant une section de noyau en forme d'anneau et
    un enroulement (501) entourant le noyau (300 ; 503) et composé de deux sections électriquement conductrices (100, 100'), dans lequel
    les sections (100, 100') ont chacune une forme de base en U avec deux branches (103, 104), dont la première branche (104) est plus longue que la seconde branche (103) et la première branche (104) est incurvée et s'éloigne vers son extrémité (102) d'un plan couvert par la forme de base en U ;
    les sections (100, 100') sont placées côte à côte sur le noyau (300 ; 503), de sorte que la forme de base en U de chaque section (100, 100') entoure la section de noyau sur trois côtés,
    la première branche (104) d'une section (100) est reliée mécaniquement et électriquement à la seconde branche (103) de l'autre section (100'),
    caractérisé en ce que
    la première branche (104) de l'une des sections (100) et la seconde branche (103) de l'autre des sections (100') sont conçues de manière à pouvoir être enfichées l'une dans l'autre à leurs extrémités (101, 102), et
    la première branche (104) de l'une des sections (100) est aplatie à son extrémité (102) et présente une ouverture (400) de forme déterminée et la seconde branche (103) de l'autre des sections (100') comprend une forme complémentaire de la forme déterminée de l'ouverture à son extrémité (101), de sorte que la seconde branche (103) de l'autre des sections (100') s'insère dans l'ouverture (400) de la première branche (104) de l'une des sections (100).
  2. Composant inductif (500) selon la revendication 1, dans lequel la première branche (104) fait saillie vers son extrémité (102) selon deux angles par rapport au plan couvert par la forme de base en U, dans lequel l'au moins un des deux angles est compris entre 80 degrés et 100 degrés.
  3. Composant inductif (500) selon la revendication 2, dans lequel au moins un des deux angles est de 90 degrés.
  4. Composant inductif (500) selon l'une des revendications 1 à 3, dans lequel la seconde branche (103) de l'autre des sections (100') est introduite dans l'ouverture (400) de la première branche (104) de l'une des sections (100) perpendiculaire à l'aplatissement.
  5. Composant inductif (500) selon l'une des revendications 1 à 4, dans lequel
    l'ouverture (400) dans la première branche (104) de l'une des sections (100) se présente sous une forme ronde et a un diamètre d'ouverture et
    l'extrémité (101) de la seconde branche (103) de l'autre des sections (100') se présente sous la forme d'une tige ronde de diamètre de tige légèrement inférieur au diamètre d'ouverture.
  6. Composant inductif (500) selon la revendication 5, dans lequel l'extrémité (101) de la seconde branche (103) de l'autre des sections (100') est emmanchée positivement dans l'ouverture (400) de la première branche (104) de l'une des sections (100).
  7. Composant inductif (500) selon l'une des revendications 1 à 6, dans lequel la première branche (104) de l'une des sections (100) et la seconde branche (103) de l'autre des sections (100') sont reliées l'une à l'autre à leurs extrémités (101, 102) par au moins une liaison dans le groupe constitué du brasage tendre, du brasage fort, du soudage et de la liaison électriquement conductrice.
  8. Composant inductif (500) selon l'une des revendications 1 à 7, dans lequel les sections (100, 100') sont en fil rond.
  9. Composant inductif (500) selon la revendication 8, dans lequel le fil rond a un diamètre compris entre 2 mm et 50 mm inclus.
  10. Composant inductif (500) selon la revendication 8 ou 9, dans lequel le fil rond comprend du cuivre ou est composé de cuivre.
  11. Composant inductif (500) selon l'une des revendications 1 à 10, dans lequel les sections (100, 100') sont au moins partiellement enrobées d'une couche électriquement isolante.
  12. Composant inductif (500) selon les revendications 1 à 11, dans lequel le noyau (300 ; 503) comprend un ruban amorphe ou nanocristallin, dans lequel le ruban comprend une perméabilité de 200 à 150 000.
  13. Composant inductif (500) selon les revendications 1 à 12, dans lequel le noyau (300 ; 503) est entouré par un boîtier électriquement isolant du composant inductif.
  14. Composant inductif (500) selon la revendication 13, dans lequel le boîtier comprend du plastique ou est composé de plastique.
  15. Composant inductif (500) selon l'une des revendications 1 à 14, qui comprend au moins un enroulement supplémentaire (502) composé de sections ou au moins une section supplémentaire d'un enroulement ou des deux.
  16. Composant inductif (500) selon la revendication 15, dans lequel les première et dernière sections (504, 505) d'un dit enroulement (501, 502) comprennent une première et une seconde branche, respectivement, conçues pour un contact externe.
  17. Procédé de fabrication d'un composant inductif (500), dans lequel
    deux sections électriquement conductrices (100, 100') formant un enroulement (501) sont placées l'une à côté de l'autre sur le noyau (300 ; 503) sur un noyau (300 ; 503) en matériau magnétique doux et ayant une section de noyau, de sorte que la forme de base en U de chaque section (100, 100') entoure la section centrale sur trois côtés, dans lequel les sections (100, 100') ont chacune une forme de base en U avec deux branches (103, 104), dont la première branche (104) est plus longue que la seconde branche (103) et la première branche (104) est coudée et son extrémité (102) fait saillie à l'écart d'un plan couvert par la forme de base en U,
    la première branche (104) d'une section (100) est reliée mécaniquement et électriquement à la seconde branche (103) de l'autre section (100'),
    la première branche (104) de l'une des sections (100) et la seconde branche (103) de l'autre des sections (100') sont conçues de manière à pouvoir être enfichées l'une dans l'autre à leurs extrémités (101, 102),
    la première branche (104) de l'une des sections (100) est aplatie à son extrémité (102) et une ouverture (400) de forme déterminée est ménagée dans l'aplatissement et
    la seconde branche (103) de l'autre des sections (100') présente à son extrémité (101) une forme complémentaire de la forme déterminée de l'ouverture (400) et la seconde branche (103) de l'autre des sections (100') est insérée dans l'ouverture (400) de la première branche (104) de l'une des sections (100).
  18. Procédé selon la revendication 17, dans lequel la première branche (104) fait saillie vers son extrémité (102) selon deux angles par rapport au plan couvert par la forme de base en U, dans lequel l'au moins un des deux angles est compris entre 80 degrés et 100 degrés.
  19. Procédé selon la revendication 18, dans lequel au moins l'un des deux angles est de 90 degrés.
  20. Procédé selon l'une des revendications 17 à 18, dans lequel la seconde branche (103) de l'autre des sections (100') est introduite dans l'ouverture (400) de la première branche (104) de l'une des sections (100) perpendiculaire à l'aplatissement.
  21. Procédé selon l'une des revendications 17 à 20, dans lequel
    l'ouverture (400) dans la première branche (104) de l'une des sections (100) se présente sous une forme ronde et a un diamètre d'ouverture et
    l'extrémité (101) de la seconde branche (103) de l'autre des sections (100') se présente sous la forme d'une tige ronde de diamètre de tige légèrement inférieur au diamètre d'ouverture.
  22. Procédé selon la revendication 21, dans lequel l'extrémité (101) de la seconde branche (103) de l'autre des sections (100') est emmanchée positivement dans l'ouverture (400) de la première branche (104) de l'une des sections (100).
  23. Procédé selon l'une des revendications 17 à 22, dans lequel la première branche (104) de l'une des sections (100) et la seconde branche (103) de l'autre des sections (100') sont reliées l'une à l'autre à leurs extrémités (101, 102) par au moins une liaison dans le groupe constitué du brasage tendre, du brasage fort, du soudage et de la liaison électriquement conductrice.
  24. Procédé selon l'une des revendications 17 à 23, dans lequel les sections sont en fil rond.
  25. Procédé selon l'une des revendications 17 à 24, dans lequel les sections (100, 100') sont au moins partiellement enrobées d'une couche électriquement isolante.
  26. Procédé selon l'une des revendications 17 à 25, dans lequel les premières branches (104) des deux sections sont pliées en rotation au niveau de leurs coudes respectifs après emboîtement sur le noyau (300 ; 503) au niveau du coude existant.
EP19727378.2A 2018-05-30 2019-05-28 Composant inductif et son procédé de fabrication Active EP3803923B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018112975.0A DE102018112975B4 (de) 2018-05-30 2018-05-30 Induktives bauelement und verfahren zu seiner herstellung
PCT/EP2019/063805 WO2019229054A1 (fr) 2018-05-30 2019-05-28 Composant inductif et procédé de fabrication associé

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JP7173065B2 (ja) * 2020-02-19 2022-11-16 株式会社村田製作所 インダクタ部品
JP7147803B2 (ja) * 2020-03-16 2022-10-05 株式会社村田製作所 インダクタ部品およびその製造方法
DE102020134147A1 (de) 2020-12-18 2022-06-23 Vacuumschmelze Gmbh & Co. Kg Induktives bauelement mit magnetkern und mittels additiver fertigung hergestellter wicklung

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DE8016996U1 (de) * 1980-06-24 1980-09-18 Radwainski, Herbert, 1000 Berlin Bewickelungen von geschlossenen kernen fuer elektro-magnetische induktionsspulen
IT1222910B (it) 1987-10-14 1990-09-12 Bassani Spa Metodo di avvolgimento delle spire dell'avvolgimento di una bobina con nucleo toroidale e bobina ottenuta con tale metodo
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JP7352154B2 (ja) * 2019-09-19 2023-09-28 株式会社村田製作所 インダクタ部品およびインダクタ部品の製造方法

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DE102018112975B4 (de) 2024-02-22
WO2019229054A1 (fr) 2019-12-05
EP3803923A1 (fr) 2021-04-14
DE102018112975A1 (de) 2019-12-05
US20210217550A1 (en) 2021-07-15
EP3803923C0 (fr) 2023-09-06
US12176133B2 (en) 2024-12-24

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