EP3977491B1 - Composant inductif et procédé de réglage d'une valeur d'inductance pour un groupe de composants inductifs de même type de construction - Google Patents

Composant inductif et procédé de réglage d'une valeur d'inductance pour un groupe de composants inductifs de même type de construction Download PDF

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Publication number
EP3977491B1
EP3977491B1 EP20729053.7A EP20729053A EP3977491B1 EP 3977491 B1 EP3977491 B1 EP 3977491B1 EP 20729053 A EP20729053 A EP 20729053A EP 3977491 B1 EP3977491 B1 EP 3977491B1
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EP
European Patent Office
Prior art keywords
film
winding wire
winding
base body
foil
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
EP20729053.7A
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German (de)
English (en)
Other versions
EP3977491C0 (fr
EP3977491A1 (fr
Inventor
Oleg FURSA
Jürgen Frey
Stefan Weber
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Philip Morris Products SA
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Philip Morris Products SA
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Publication of EP3977491B1 publication Critical patent/EP3977491B1/fr
Publication of EP3977491C0 publication Critical patent/EP3977491C0/fr
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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
    • 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
    • H01F17/045—Fixed inductances of the signal type with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H01F21/005—Inductances without magnetic core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H01F21/12—Variable inductances or transformers of the signal type discontinuously variable, e.g. tapped
    • 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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • 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
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H01F27/325—Coil bobbins
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/36—Coil arrangements
    • H05B6/44—Coil arrangements having more than one coil or coil segment
    • 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
    • H01F17/045—Fixed inductances of the signal type with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
    • H01F2017/046—Fixed inductances of the signal type with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core helical coil made of flat wire, e.g. with smaller extension of wire cross section in the direction of the longitudinal axis
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
    • H05B2206/02—Induction heating
    • H05B2206/022—Special supports for the induction coils

Definitions

  • the present invention relates to an inductive component having a coil body with a wire winding.
  • This can be an air coil, i.e. a coil without a magnetic core.
  • the inductive component is used in a stereo system.
  • the geometric dimensions have a strong influence on the inductance of electrical components, especially air coils.
  • High-precision inductance values can only be produced within certain physical limits and require precise control of the geometry. Variations in the material properties and the operating temperature also lead to a variation in the inductance value for inductors with or without a ferrite core.
  • the correction of deviations in the inductance value of a finished component from a desired target value is referred to as "adjustment" or "tuning".
  • the printed publications DE 36 18 122 A1 , DE 39 26 231 A1 , DE 199 52 192 A1 and DE 10 2008 063 312 A1 describe reconcilable inductive components. Adjustment is usually achieved by pushing a core made of soft magnetic material into or out of the winding or by pulling the winding apart or squeezing it together.
  • EP 0 461 712 A relates to a transformer with a ferromagnetic core which forms a magnetic circuit interrupted by at least one air gap, and a coil body provided with an electrically conductive foil winding package which encloses the core in the region of the air gap.
  • JP H07 240324 A discloses a small transformer. A double-sided adhesive tape is wound around the cylindrical winding portion of a coil, and non-wound parts are formed near the flanges of the coil to form barrier spaces. Then, a primary coil is formed from one winding on the outer circumference of the tape, and other coils are successively formed from windings with double-sided adhesive tapes interposed therebetween, so that other non-wound parts can be formed in a similar manner.
  • an inductive component according to claim 1 is provided.
  • the coil body has a base body which is at least partially wrapped with an electrically insulating film. By wrapping the film, the diameter of the coil body is selectively increased. As a result, the inductance can be specifically adjusted after winding a winding wire onto the coil body and at least partially over the film.
  • the base body of the coil body is made of a non-magnetic material.
  • it is a plastic material.
  • the inductive component can therefore be designed as an air coil, i.e. it can not have a magnetic core around which the winding wire is wound.
  • the coil body therefore functions purely as a carrier for the winding wire, but not to guide the magnetic flux.
  • the inductance is particularly dependent on the geometry, in particular the diameter of the coil, so that precise fine-tuning is possible by changing the diameter.
  • the thickness of the film is significantly less than 1 mm.
  • the film is, for example, a maximum of 100 ⁇ m thick.
  • the thickness of the film can be between 10 and 40 ⁇ m.
  • the base body can be made of a magnetic material.
  • it can be a ferrite core.
  • the foil is wound around the base body in a helical shape, for example.
  • the length of the foil and thus, with a fixed geometry of the winding, the number of turns of the foil around the base body can be determined depending on a target value of the inductance. For example, the number of turns is varied between one turn and four turns.
  • the foil is arranged such that the winding of the winding wire is arranged above the winding of the foil.
  • the geometry of the winding of the foil corresponds to the geometry of the winding of the wire, whereby the winding of the foil is shorter than the winding of the wire.
  • the wire winding completely covers the foil lengthwise and extends beyond the foil.
  • the winding wire can also completely cover the foil across its width.
  • the maximum possible effective length is defined as the length of the foil where the foil is present underneath the entire winding and thus the entire winding is applied over an enlarged diameter.
  • the foil is applied to half the possible maximum effective length, then the winding is applied and the inductance of the component is measured. Depending on the measured inductance value, the length of the foil is then reduced or increased when further components are manufactured.
  • the initial application of the foil only over part of the maximum possible length, for example over half, is intended to provide scope for fine-tuning the length of the foil.
  • the foil in the resulting component does not extend over the maximum possible effective length of the foil.
  • the foil extends over a maximum of two thirds of the maximum possible effective length.
  • the foil extends over at least one third of the length of the base body or the maximum possible effective length.
  • the thickness of the foil or the number of layers of the foil can be varied to adjust the diameter and thus the inductance.
  • the foil can be applied to the base body in a single layer.
  • the foil can also be applied in multiple layers.
  • To adjust the inductance for example, a certain number of layers of the foil are initially present and then, depending on the measured inductance value, one or more Layers are removed or added.
  • the film is made of a non-magnetic material.
  • it can be a plastic material.
  • the film can be made of the same material as the coil body. Thus, the film only serves to increase the diameter of the coil body, but not to guide the magnetic flux.
  • the coil body can have a recess in which the foil is arranged.
  • the recess is designed for the precise placement of the foil and/or for the precise placement of the winding wire.
  • the recess is designed to be circumferential, for example, in particular the recess runs helically around the base body.
  • the recess can only run around the base body in sections or run continuously around the base body.
  • the recess has at least two turns, in particular continuous turns.
  • the recess extends, for example, at least over the entire length of the film.
  • the recess is designed not only for placing the film, but also for placing the winding wire.
  • the recess extends over a large part of the length of the base body.
  • the recess has lateral boundaries so that the film and/or the winding wire are guided perpendicular to their course in their main direction of extension so that they cannot slip.
  • the lateral boundaries can be formed by the material of the base body.
  • the recesses can be formed directly during the manufacture of the base body, for example in an injection molding process. Only one lateral boundary can be formed for positioning purposes.
  • the film is only slightly wider than the recess.
  • the film can also be the same width as the recess or slightly wider than the recess. In this case, the film can be secured in the recess by clamping.
  • the foil is arranged between the winding wire and the base body over a portion of the length of the winding wire, the outer diameter of the coil body and thus the inner diameter of the winding is increased in some areas. This leads to an increase in the inductance of the component.
  • the winding wire is designed as a flat wire, for example.
  • the winding wire can alternatively be designed as a round wire, for example. It can be a copper wire.
  • the inductance of the component is, for example, between 1 and 1000 nH. Depending on the design, by varying the length of the foil, it is possible to adjust the inductance in a range of up to 10% of the inductance in 0.1% steps.
  • the winding wire extends over the entire length of the foil and beyond the length of the foil.
  • the foil and the winding wire are designed in particular as two uniform windings lying one above the other.
  • the wound winding wire is longer than the foil.
  • the winding wire therefore only covers part of the foil in the main direction of extension of the foil.
  • the winding wire extends beyond the foil on both sides at its ends, for example.
  • the winding wire preferably has more windings than the foil.
  • the number of windings in the foil is a maximum of two thirds of the number of windings in the winding wire.
  • the winding wire has eight windings and the foil has five windings. This provides sufficient scope for fine-tuning the inductance.
  • the diameter of the wire winding can therefore vary from region to region.
  • the diameter is larger at the points where the winding wire is arranged above the foil.
  • the inductive component has a coil body with a recess, wherein the foil and the winding wire are arranged at least partially in the recess.
  • the recess can in particular be designed as already described above for the coil body.
  • the recess can be helical and have at least two turns.
  • the winding wire is, for example, somewhat narrower than the recess.
  • the winding wire can also have the same width as the recess or a somewhat larger width than the recess. In this case, the winding wire can be secured in the recess by clamping.
  • the film can also be glued to the base body.
  • the film is self-adhesive.
  • the film can also be attached to the base body using an applied adhesive.
  • the winding wire can also be attached to the base body by gluing. It is also possible to first attach the film to the winding wire, for example by gluing it to the winding wire, and then arrange and attach the winding wire together with the film to the base body.
  • a method for setting an inductance value for a group of inductive components of the same design is specified according to claim 9.
  • a base body of a coil body is covered with a foil at least in regions
  • the length of the foil is selected depending on a target value of the inductance. With a fixed geometry, the length corresponds to the number of turns of the foil.
  • the coil body is then wound with a winding wire so that the foil is arranged in regions, along a region of the winding wire, between the base body and the winding wire.
  • the coil body and the inductive component are designed, for example, as described above.
  • the inductance of an inductive component of the same design is measured.
  • the inductance can also be measured indirectly, i.e. another parameter that represents a measure of the inductance.
  • the length of the foil for another inductive component can then be changed depending on the deviation of the measured value from a target value.
  • the length is increased or decreased step by step until the desired target value is reached.
  • the number of turns is changed in a range from 1.00 to 4.00 turns.
  • the step of the length change is less than one turn, for example 0.01 turns.
  • a coil former for an inductive component has a limitation for positioning a winding wire.
  • the boundary or depression runs in particular in a helical manner around a base body of the coil body.
  • the boundary or depression has at least two turns.
  • the depression can be formed in a base body of the coil body.
  • the depression can also be formed for positioning a film as described above.
  • the coil body can also have no film.
  • the coil body can otherwise be formed as described above.
  • an inductive component has such a coil body with a recess in which a winding wire is arranged.
  • the winding wire is designed, for example, as a flat wire.
  • a film can be arranged between the winding wire and a base body of the coil body. There can also be no such film.
  • the inductive component can otherwise be designed as described above.
  • the winding wire is attached to the base body by clamping, gluing or hot caulking as described above.
  • Figure 1 shows a coil former 1 for an inductive component.
  • the coil former 1 is designed as a carrier for a winding wire.
  • the coil body 1 is designed in particular for an air coil, i.e. a coil in which there is no magnetic core.
  • the coil body 1 is designed to be non-magnetic.
  • the coil body 1 has, for example, a base body 2 made of plastic.
  • the coil body 1 is manufactured, for example, using an injection molding process.
  • the inductance is determined primarily by the geometry of the winding.
  • the coil body 1 also be designed as a magnetic core, for example as a ferrite core, or there may be a magnetic core in the coil body 1.
  • the base body 2 has a cylindrical shape in the present case.
  • the base body 2 can also have a different shape, for example a cuboid shape.
  • the base body 2 can also be part of a larger body, for example an annular body.
  • the base body 2 can be designed as a hollow body.
  • the base body 2 is partially wrapped with a film 3.
  • the film 3 serves to selectively increase the diameter of the base body 2.
  • the film 3 is thin and thus enables fine-tuning of the diameter of the base body 2 and thus the inductance of the component after winding a winding wire over the film 3.
  • the film 3 is between 10 ⁇ m and 40 ⁇ m thick.
  • the film 3 is, for example, 25 ⁇ m thick.
  • the film 3 is applied in one layer in the present case.
  • the film 3 comprises a non-magnetic material.
  • the film 3 can comprise a plastic material or consist of a plastic material.
  • the coil body 1 and the film 3 can be formed from the same material.
  • the film 3 can comprise a magnetic material.
  • the area with increased diameter can be selectively adjusted and thus the inductance of the resulting component.
  • the coil body 1 has a recess 4 which is designed for the precise positioning of the foil 3 and/or the winding wire 8. The more precisely the foil 3 and/or the winding wire 8 can be positioned on the coil body 1, the more precisely the inductance of the component can be adjusted.
  • the recess 4 is formed all the way around the base body 2.
  • the recess 4 runs in particular in a helical manner around the base body 2 of the coil body 1.
  • the recess 4 is delimited on both sides perpendicular to the direction of rotation by limits 5, 6.
  • the limits 5, 6 also run around the base body 2.
  • the recess 4 is thus formed as a circumferential guide groove/channel.
  • the recess 4 is formed as a thread and the limits 5, 6 as thread flanks.
  • the film 3 is inserted into the recess 4.
  • the film 3 has a similar width to the recess 4.
  • the film 3 is slightly narrower than the recess 4.
  • the film 3 can also be the same width or slightly wider than the recess 4 and can be secured in the recess 4 by clamping or gluing.
  • the winding wire 8 (see Figure 2 ) can have a similar width as the recess 4.
  • the width b of the recess 4 is a maximum of 25% larger than the width B of the winding wire.
  • the recess preferably has at least two turns.
  • the coil body 1 does not have a recess 4 for positioning the winding wire, but does have a foil 3.
  • Figure 2 shows an inductive component 7 comprising a coil body 1 and a winding wire 8 wound around it, which thus forms a winding 9.
  • the coil body 1 can be Figure 1 be carried out.
  • the winding wire 8 is in the form of a flat wire.
  • the winding wire 8 rests with its main surface on the base body 2 of the coil body 1.
  • the winding wire 8 can also be in the form of a round wire.
  • it is a copper wire.
  • the winding wire 8 can also have more or fewer turns.
  • the winding wire 8 has two ends 10, 11.
  • the ends 10, 11 are, for example, continued to a contact terminal (not shown) for contacting the component 7 or are provided with a further contact (not shown).
  • the winding wire 8 is arranged in regions above the foil 3.
  • the foil 3 is thus arranged between the base body 2 of the coil body 1 and the winding wire 8.
  • the diameter of the winding 9 is increased.
  • the winding wire 8 is thus arranged in regions above the foil 3 and in regions directly on the base body 2, depending on the length or number of turns k of the foil 3. Accordingly, the diameter D of the winding 9 is only increased in regions. Depending on the size of the region with the increased diameter, the inductance of the component 7 is increased.
  • the winding wire 8 is arranged in the recess 4.
  • the width B of the winding wire 8 is, for example, only slightly less than the width b of the recess 4.
  • the position of the winding wire 8 is thus precisely determined by the recess 4.
  • the width B of the winding wire 8 can also be slightly larger than the width b of the recess 2, so that the winding wire 8 is fastened between the boundaries 5, 6 by clamping.
  • the winding wire 8 can also be fastened in the recess 2 by hot caulking. In particular, radial end regions of the boundaries 5, 6 are widened by hot caulking, so that the winding wire 8 is at least partially enclosed radially outwards by the end regions.
  • the inductive component 6 has no recesses in the coil body 1 for positioning the winding wire 8, but a foil, as in Figure 1 shown.
  • the winding wire 8 is wound in a single layer onto the coil body 1. In other embodiments, the winding wire 8 can also be wound in multiple layers onto the coil body 1.
  • FIGS. 3A to 3E show process steps in setting the inductance of an inductive component.
  • a coil body 1 is provided.
  • the coil body 1 can, like the coil body 1 made of Figure 1
  • the coil body 1 can, but does not have to, have the recess 4.
  • the length 1 of the foil 3 is determined, for example, depending on a target value based on an incoming measured value "M".
  • the information can be obtained from a measurement of the inductance from an identically constructed inductive component. If the measured inductance is smaller than a desired target value, a foil 3 with a longer length 1 than that of the measured component is selected. If the measured inductance is smaller than a desired target value, a foil 3 with a shorter length 1 than that of the measured component is selected.
  • the length 1 of the foil 3 corresponds to a number of turns k for a specified coil body 1 and a specified winding geometry.
  • the number of turns k is varied, for example, in increments of 0.01 turns.
  • the number of turns is set in the range from 1.00 to 4.00 turns.
  • the foil 3 is wound around the base body 2.
  • the number of turns is set to approx. 2.05.
  • the foil 3 can also be wound first and then cut to the desired length 1.
  • the coil body 1 can have the helical recess 4 (see Figure 1 ) and the film 3 can be inserted into the recess 4.
  • a winding wire 8 is wound around the coil body 1 so that a winding 9 is formed.
  • the foil 3 selectively increases the diameter D of the winding 9, as shown schematically here.
  • the diameter of the component 7 is changed, in particular in the ⁇ m range.
  • the winding wire 8 is in this case considerably longer than the foil 3.
  • the winding wire 8 has at least one more turn than the foil 3.
  • the number of turns of the winding wire 8 is at least one third greater than the number of turns k of the foil 3. This allows a large degree of freedom in the Adjusting the inductance.
  • a measured value M of the inductance is determined. If the inductance is sufficiently close to the target value, the length 1 of the foil 3 is determined for a group of components. If the target value has not yet been reached, the length 1 of the foil 3 is further changed based on the measured value M.
  • the inductance of the component 7 can be adjusted very precisely in 0.1% steps in a range of up to 10%.
  • the target value of the inductance is, for example, between 1 and 1000 nH.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Insulating Of Coils (AREA)

Claims (10)

  1. Composant inductif comprenant :
    - une armature de bobine, l'armature de bobine (1) étant configurée comme un support pour un fil d'enroulement (8), l'armature de bobine (1) comprenant un corps de base (2) ;
    - un film électro-isolant (3), le corps de base (2) étant enveloppé avec le film électro-isolant (3) dans des régions ; et
    - un enroulement (9) fait d'un fil d'enroulement (8) enveloppé autour du corps de base (2), de telle sorte que le film (3) est disposé entre le fil d'enroulement (8) et le corps de base (2) dans la direction radiale, caractérisé en ce que le film électro-isolant (3) s'étend sur un maximum de deux tiers d'un potentiel maximal, la longueur axiale effective du film (3) au niveau de laquelle le film électro-isolant (3) serait présent sous toute la longueur axiale de l'enroulement (9), de telle sorte que le fil d'enroulement (8) est disposé sur le film (3) dans des régions et directement sur le corps de base (2) dans des régions le long de l'extension longitudinale axiale de l'enroulement (9), et un diamètre de l'enroulement (9) est agrandi dans la région le long de l'étendue longitudinale axiale de l'enroulement (9) dans laquelle le fil d'enroulement est disposé sur le film (3).
  2. Composant inductif selon la revendication 1,
    dans lequel le corps de base (2) est composé d'un matériau non magnétique.
  3. Composant inductif selon l'une des revendications précédentes, dans lequel le film (3) est composé d'un matériau non magnétique.
  4. Composant inductif selon l'une des revendications précédentes, dans lequel le film (3) a une épaisseur maximale de 100 µm.
  5. Composant inductif selon l'une des revendications précédentes, dans lequel l'armature de bobine (1) comprend un évidement (4), dans lequel le film (3) est disposé dans l'évidement (4).
  6. Composant inductif selon la revendication 5,
    dans lequel l'évidement (4) est hélicoïdal et comprend au moins deux spires.
  7. Composant inductif selon l'une des revendications 5 ou 6,
    dans lequel le fil d'enroulement (8) est disposé dans l'évidement (4) .
  8. Composant inductif selon l'une quelconque des revendications précédentes, dans lequel le film (3) est enroulé en hélice autour du corps de base (2), et dans lequel un nombre de spires (k) du film (3) est au plus de deux tiers d'un nombre de spires (m) du fil d'enroulement (8).
  9. Procédé pour régler une valeur d'inductance pour un groupe de composants inductifs de la même conception, un corps de base (2) d'un armature de bobine (1) qui est enveloppé au moins dans des régions avec un film électro-isolant (3), la longueur axiale du film (3) étant sélectionnée en fonction d'une valeur cible de l'inductance et l'armature de bobine (1) étant ensuite enveloppé avec un fil d'enroulement (8), de telle sorte que le film (3) est disposé entre le fil d'enroulement (8) et le corps de base (2) dans la direction radiale au moins dans des régions, et le fil d'enroulement (8) est disposé sur le film (3) dans des régions et directement sur le corps de base (2) dans des régions le long de l'extension longitudinale axiale du fil d'enroulement (8), et un diamètre de l'enroulement (9) du fil d'enroulement est agrandi le long de l'étendue axiale (9) dans la région dans laquelle le fil d'enroulement est disposé sur le film (3), et dans lequel, après enroulement avec le fil d'enroulement (8), l'inductance du composant (7) est mesurée, et
    soit la longueur du film (3) pour un autre composant inductif (7) de conception autrement identique est modifiée en fonction de l'écart de la valeur mesurée par rapport à une valeur cible, si la valeur cible n'a pas encore été atteinte, dans lequel si l'inductance mesurée est inférieure à la valeur cible alors un film (3) ayant une longueur plus grande que pour le composant mesuré (7) est sélectionné pour l'autre composant inductif (7), ou si l'inductance mesurée est supérieure à la valeur cible alors un film (3) ayant une longueur inférieure au composant mesuré (7) est sélectionné,
    soit autrement la longueur du film (3) est définie pour le groupe de composants lorsque la valeur cible est atteinte.
  10. Procédé selon la revendication 9,
    dans lequel le film (3) est enveloppé de manière hélicoïdale autour du corps de base (2) et dans lequel la longueur (1) du film (3) est modifiée par pas inférieurs à une spire du film (3) autour de l'armature de bobine (1).
EP20729053.7A 2019-05-29 2020-05-27 Composant inductif et procédé de réglage d'une valeur d'inductance pour un groupe de composants inductifs de même type de construction Active EP3977491B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019114517 2019-05-29
PCT/EP2020/064724 WO2020239847A1 (fr) 2019-05-29 2020-05-27 Corps de bobine, composant inductif et procédé de réglage d'une inductance

Publications (3)

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EP3977491A1 EP3977491A1 (fr) 2022-04-06
EP3977491B1 true EP3977491B1 (fr) 2024-12-25
EP3977491C0 EP3977491C0 (fr) 2024-12-25

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EP (1) EP3977491B1 (fr)
JP (1) JP7696835B2 (fr)
KR (1) KR102733223B1 (fr)
CN (1) CN113874967B (fr)
IL (1) IL288329B2 (fr)
PH (1) PH12021552861A1 (fr)
WO (1) WO2020239847A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3148330A1 (fr) * 2023-04-28 2024-11-01 Safran Electrical & Power Filtre d’interfaçage LC intégrant un circuit d’amortissement
EP4618114A1 (fr) * 2024-03-15 2025-09-17 Delta Electronics (Thailand) Public Co., Ltd. Bobine et composant magnétique

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4723004Y1 (fr) * 1969-07-30 1972-07-25
JPS5228132Y1 (fr) * 1969-11-13 1977-06-27
DE3618122A1 (de) 1986-05-30 1987-12-03 Johann Leonhard Huettlinger Abgleichbare filterspule
US5220304A (en) * 1989-05-11 1993-06-15 Astec International Limited Safety insulated transformers
DE3926231A1 (de) 1989-08-09 1991-02-14 Kolbe & Co Hans Kleine abgleichbare induktivitaet
NL9001350A (nl) * 1990-06-14 1992-01-02 Philips Nv Transformator met luchtspleet en isolatiefolie-pakket.
JPH07240324A (ja) * 1994-02-28 1995-09-12 Kijima Musen Kk 小形トランス
JPH07272937A (ja) * 1994-03-31 1995-10-20 Nec Kansai Ltd 表面実装型コイル並びに表面実装型コイルの実装構体
DE19952192A1 (de) 1999-10-29 2001-04-12 Siemens Ag Verfahren zum Abgleichen einer elektronischen Schaltung, insbesondere einer Oszillatorschaltung
JP2002093649A (ja) * 2000-09-12 2002-03-29 Mitsubishi Materials Corp ボビンコイルの製造方法及びボビンコイル
JP2002252132A (ja) 2001-02-23 2002-09-06 Okaya Electric Ind Co Ltd チップインダクタのインダクタンス調整方法
US6842101B2 (en) * 2002-01-08 2005-01-11 Eagle Comtronics, Inc. Tunable inductor
US6950005B2 (en) * 2003-06-30 2005-09-27 International Business Machines Corporation Adjustable coilform for variable inductance
DE102008063312B4 (de) 2008-12-30 2015-05-21 Siemens Aktiengesellschaft Vorabgleichbare SMD-Spulen für hohe Ströme
EP2487697A1 (fr) * 2011-02-08 2012-08-15 ABB Technology AG Transformateur de type sec et son procédé de fabrication
JP6098870B2 (ja) 2012-12-27 2017-03-22 株式会社オートネットワーク技術研究所 リアクトル、コンバータ、及び電力変換装置
EP3289598B1 (fr) * 2015-04-29 2020-01-08 Höganäs Ab (publ) Dispositif inductif, carcasse de bobine et procédé de fabrication

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PH12021552861A1 (en) 2022-10-17
JP2022534936A (ja) 2022-08-04
KR102733223B1 (ko) 2024-11-25
IL288329B1 (en) 2024-12-01
CN113874967A (zh) 2021-12-31
CN113874967B (zh) 2025-09-12
JP7696835B2 (ja) 2025-06-23
IL288329B2 (en) 2025-04-01
IL288329A (en) 2022-01-01
KR20220015418A (ko) 2022-02-08
EP3977491C0 (fr) 2024-12-25
EP3977491A1 (fr) 2022-04-06
BR112021020784A2 (pt) 2021-12-14
US20220256661A1 (en) 2022-08-11
WO2020239847A1 (fr) 2020-12-03

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