WO2021053068A1 - Induktives bauelement und verfahren zur einstellung eines induktivitätswertes - Google Patents
Induktives bauelement und verfahren zur einstellung eines induktivitätswertes Download PDFInfo
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- WO2021053068A1 WO2021053068A1 PCT/EP2020/075971 EP2020075971W WO2021053068A1 WO 2021053068 A1 WO2021053068 A1 WO 2021053068A1 EP 2020075971 W EP2020075971 W EP 2020075971W WO 2021053068 A1 WO2021053068 A1 WO 2021053068A1
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- Prior art keywords
- film
- magnetic
- inductive component
- wire winding
- layers
- Prior art date
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- 230000001939 inductive effect Effects 0.000 title claims description 30
- 238000004804 winding Methods 0.000 claims abstract description 71
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 9
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- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
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Classifications
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- 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
- 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
- H01F41/079—Measuring electrical characteristics while winding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/02—Fixed inductances of the signal type without magnetic core
-
- 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
- H01F19/00—Fixed transformers or mutual inductances of the signal type
- H01F19/02—Audio-frequency transformers or mutual inductances, i.e. not suitable for handling frequencies considerably beyond the audio range
-
- 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
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- 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
- H01F27/2823—Wires
-
- 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
- H01F27/288—Shielding
- H01F27/2885—Shielding with shields or electrodes
-
- 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
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- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
- H01F27/361—Electric or magnetic shields or screens made of combinations of electrically conductive material and ferromagnetic material
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- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
- H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material
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- 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
-
- 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
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
- H01F41/022—Manufacturing of magnetic circuits made from strip(s) or ribbon(s) by winding the strips or ribbons around a coil
-
- 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
- H01F41/12—Insulating of windings
- H01F41/125—Other insulating structures; Insulating between coil and core, between different winding sections, around the coil
-
- 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 present invention relates to an inductive component having a wire winding. It can be a coil with a magnetic core within the wire winding or without a magnetic core within the wire winding.
- the inductive component is used in a stereo system.
- a precise setting of the inductance value of the component is desirable.
- a high-precision setting of the inductance is necessary, especially for resonance applications.
- the component is designed in particular for use in the high frequency range.
- the geometric dimensions have a strong influence on the inductance of electrical components, especially in the case of air-core coils. Highly precise 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 in the case of inductors with or without a magnetic 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”.
- an inductive component has a wire winding.
- the wire winding is wrapped in a magnetic film.
- the magnetic film can be in direct contact with the wire winding.
- An insulating layer can also be arranged between the magnetic film and the wire winding.
- the inductance of the component can be precisely adjusted through the film after the wire winding has been produced.
- the film can be wound around the wire winding in a suitable number of turns. With an increase in the number of turns, the magnetic thickness of the film roll can be increased. Thus, the film creates a magnetic body outside the winding, which influences the inductance of the component. For example, depending on the magnetic thickness of the film, the inductance of the component can be changed in the range of nH.
- the wire winding has, for example, as a winding wire a metallic wire, for example copper, aluminum or silver wire.
- the component can have a carrier body for the winding wire.
- the carrier body is formed from a non-magnetic material.
- it is a plastic material.
- the carrier body thus functions purely as a carrier for the winding wire, but not for guiding the magnetic flux.
- the inductance is particularly dependent on the geometry, in particular the diameter of the coil, so that the inductance can be strongly influenced by applying the film in the outer region of the wire winding.
- the carrier body can be formed from a magnetic material.
- it can be a ferrite core.
- a magnetic core it is also possible for a magnetic core to be arranged within a non-magnetic carrier body.
- the magnetic foil can surround the wire winding over the entire length of the winding.
- the film can also surround the wire winding in one direction around the winding axis.
- the wire winding is completely covered on the outside by the film.
- the wire winding is wound helically.
- the wire winding can have the basic geometry of a tube.
- the magnetic film for example, also has the basic geometry of a tube in which the wire winding is received. It is also possible that the foil does not completely cover the wire winding.
- Wire winding This does not include the ends of the wire that may protrude from the coiled shape.
- the magnetic film can be designed to be self-adhesive. This enables the film to be attached particularly easily.
- the film can be designed to be non-self-adhesive and can be fastened with an adhesive or by heating and pressure.
- the film is provided in the form of a roll before application and can then be unwound from the roll and applied to the wire winding.
- the film can, for example, also be provided in the form of a strip.
- the film can be wrapped around the wire winding in one or more layers.
- the film has 1 to 10 layers.
- the film has more than one layer, in particular at least two layers.
- the magnetic thickness of the film roll can be increased and thus the inductance can be increased.
- the layers of the film can be in direct contact with one another. In the case of a self-adhesive design of the film, the layers can be attached to one another in a simple manner.
- the film can also be wrapped around the wire winding in just a single layer. It is also possible for the film to be wound around the wire winding with a non-integer number of windings, for example having 2.5 layers.
- the film, corresponding to a layer of the film in wound form, has, for example, a maximum thickness of 100 ⁇ m.
- the film can have one or more layers.
- one layer of the film roll can be configured in one or more layers.
- the film can be designed as a laminate of several layers. The layers can be connected to one another by an additional adhesive or without an additional adhesive.
- the film has at least one magnetic layer.
- the film can also have several magnetic layers.
- the magnetic layer comprises a magnetic material.
- the magnetic material can be a ferrite material, for example. It can also be pure iron or an amorphous or nanocrystalline iron alloy. In particular, they can also be highly permeable materials, for example with a permeability of m> 1000.
- the magnetic material can be embedded in particle form in a non-magnetic material, for example a plastic.
- the particles are distributed in the non-magnetic material.
- the non-magnetic material can also be designed as an adhesive. The required strength and flexibility of the film can be guaranteed by the non-magnetic material.
- such a film is provided in cured form, wound around the wire winding and then fixed by heating.
- An additional adhesive can also be applied.
- the magnetic layer can also consist of the magnetic material. In this case, there are no magnetic particles embedded in a non-magnetic material, but the layer is formed entirely from the magnetic material. For example, it is an iron band.
- the other materials mentioned above can also be used here.
- the film has a carrier layer in addition to the magnetic layer.
- the carrier layer is, for example, non-magnetic.
- the carrier layer has, for example, plastic or consists of plastic.
- the carrier layer can also have an adhesive, in particular a cured adhesive.
- the magnetic layer is attached to the carrier layer, for example by heating and applying pressure. Alternatively, the magnetic layer is glued to the carrier layer.
- the properties of the film in particular the strength and flexibility of the film, can be improved by the carrier layer.
- the carrier layer can ensure that the film can be processed.
- an adhesive that attaches the film to the component can also ensure that the film is held together if cracks develop in the magnetic layer.
- the adhesive on the component thus takes on the function of the carrier layer.
- the film is provided, for example, without a carrier layer, an adhesive is applied to the film and the film is wrapped around the wire winding.
- carrier layers There can also be several carrier layers.
- a magnetic layer is arranged between two carrier layers.
- the inductance of the component is between 1 and 1000 nH, for example.
- the inductance is between 1 and 1000 nH, for example.
- by varying the number of turns in the film it is possible, for example, to adjust the inductance in a range of up to 10% of the inductance in 0.1% steps.
- An insulating layer can also be provided between the wire winding and the magnetic film.
- the insulating layer is designed in particular to be non-magnetic and non-conductive.
- an electrical shield in particular in the form of an electrically conductive material, can be applied to the foil winding.
- the electrical shield can surround the wound magnetic film.
- the shield is in the form of a further film or a coating, for example.
- the shield can comprise a conductive material, for example a metal.
- a metallic foil such as copper foil, aluminum foil or tinned copper foil can be applied to the magnetic foil.
- the metallic foil can have one or more layers.
- an additional non-conductive film for fixing can be arranged over the shield.
- a method for setting an inductance value of an inductive component is specified. It becomes a wire wrap provided and wrapped with a magnetic film.
- the inductance value of the component obtained is influenced by the magnetic film.
- a number of layers of the film can be selected as a function of a nominal value for the inductance.
- a thickness of a magnetic layer of the film is also possible, as an alternative or in addition to this, to choose the thickness of a magnetic layer of the film as a function of a desired target value.
- several foils with different thicknesses of a magnetic layer can be provided and one of the foils is then selected as a function of a desired target value.
- the foil, the wire winding and the inductive component can have all of the properties described above.
- a magnetic core can be arranged within the wire winding or no magnetic core can be arranged within the wire winding.
- the inductance of the component is measured before or after the film is wrapped around it and the number of layers of the inductive component or of a further inductive component is changed depending on the deviation of the measured value from a target value.
- the inductance can also be measured indirectly, i.e. a measured value can be determined that represents a measure of the inductance.
- the film can still have a part that is not wound around the wire winding and protrudes from the wound part.
- the film can either be further wound around the wire winding or the protruding part can be separated.
- the non-wound part can be separated after winding and another film can be wound up after the measurement.
- the number of layers can be increased step by step until the desired target value is reached. Incomplete layers can also be applied. For example, the number of layers is increased step by step until the desired target value is reached. Depending on the type of fastening, the number of layers can also be reduced. For example, the number of layers is changed in a range from 1.00 to 10.00 turns.
- the inductance value can be adjusted in a simple form by applying the magnetic film.
- a comparison can also take place after or even during the measurement.
- an electrical shield in particular in the form of an electrically conductive material, can be applied to the film winding.
- the electrical shield can surround the wound magnetic film.
- the shield is in the form of a further film or a coating, for example.
- the shield can comprise a conductive material, for example a metal.
- a metallic foil such as, for example, copper foil, aluminum foil or tinned copper foil, can be applied to the magnetic foil.
- the metallic foil can have one or more layers. In this way, the electrical shielding of the inductive component can be ensured.
- an additional non-conductive film can be placed over the shield for fixing to be ordered.
- Figure 1 shows an embodiment of an inductive component in a side view
- FIG. 2 shows a base body of the component from FIG.
- FIG. 3 shows a film for wrapping around the base body from FIG. 2,
- FIGS. 4A to 4D show a method for setting an inductance in a schematic representation.
- FIG. 1 shows an inductive component 1 having a magnetic film 2 for balancing the inductance of component 1.
- FIG. 2 shows, for illustration, a base body 6 of component 1 from FIG. 1, that is, without the film 2 being wrapped around it.
- the component 1 has a winding 3 (see FIG. 2) of a wire 4.
- the winding 3 is wound around a carrier body 5.
- the carrier body 5 can for example be designed as a magnetic core.
- the carrier body 5 can be designed as a ferrite core.
- the carrier body 5 can also be designed to be non-magnetic. In this case, a magnetic core can be arranged within the carrier body 5.
- the base body 6 can be designed as an air-core coil.
- the carrier body 5 is non-magnetic and there is also no magnetic core in the carrier body 5.
- the carrier body 5 can also be referred to as a coil body, the inductive component 1 as a coil.
- the carrier body 5 has, for example, plastic.
- the carrier body 5 is produced, for example, in an injection molding process.
- the wire 3 is designed as a copper wire, for example.
- the wire can also be an aluminum, silver or gold wire, for example.
- the wire can be insulated, for example with a varnish.
- the wire in particular in the case of aluminum or copper, can be coated with other metals such as tin, silver, nickel or gold.
- the carrier body 5 has a circular cylindrical shape Shape on.
- the carrier body 5 can also have a different shape, for example a cuboid shape.
- the carrier body 5 can also be part of a larger body, for example an annular body.
- the carrier body 5 is shown here as a hollow body, but can also be designed as a solid body. When designed as a hollow body, a magnetic core can also be inserted in the carrier body 5.
- the wire winding 3 is surrounded by a magnetic film 2.
- the film 2 is wound into a film roll 13.
- the film 2 has a magnetic material.
- the film 2 is not or only slightly electrically conductive.
- An insulating layer can optionally be arranged between the film 2 and the wire winding 3.
- the insulating layer can have a plastic, for example.
- the inductance of the component 1 can be set precisely after the wire winding 3 has been produced.
- the film 2 can be wound around the wire winding 3 in a suitable number of turns.
- the foil winding 13 has four complete turns, so that four layers 18, 19, 20, 21 lie on top of one another.
- the film 2 can also have a different number of layers, for example between 1 and 10 layers. It is also possible for the film to have more than 10 layers.
- the film 2 is already in its basic form before the component 1 is wrapped around it.
- the film 2 is provided in the form of a roll, unwound and wrapped around the base body 6.
- the film 2 can also, for example be provided in the form of a strip.
- the film roll 13 forms a magnetic body outside the winding.
- the number of turns determines the magnetic thickness of the film roll 13.
- the film roll 13 can also be referred to as a shield winding due to its magnetically shielding effect.
- the film roll 13 has, in particular, the shape of a tube arranged around the base body 6.
- the film roll 13 completely covers the wire winding 3 towards the outside, in particular in a direction radially outward as seen from a winding axis. Wire ends 14, 15 of the wire 4 protrude from the wound film 2.
- the film roll 13 does not completely cover the length of the carrier body 5, for example.
- the film roll 13 can be surrounded on the outside by an electrical shield 16.
- the shield 16 is in the form of a further film or a coating, for example.
- the shield 16 comprises a conductive material, for example a metal.
- an additional non-conductive film for fixing can be arranged over the shield 16.
- FIG. 3 shows an example of a magnetic film 2 for adjusting the inductance.
- the basic shape of the film 2 is present before and after the wrapping of the base body 6.
- the film 2 is provided, for example, as a roll or as a strip before being wrapped around it.
- the film 2 has two carrier layers 7, 8 and a magnetic layer 9 arranged between them.
- the Foil 2 has a multilayered structure
- only one carrier layer or no carrier layer can be present.
- the use of only one carrier layer or no carrier layer has the advantage that the overall thickness of the film 2 is less.
- the carrier layers 7, 8 are, for example, non-magnetic and serve to stabilize the magnetic layer 9.
- the carrier layers 7, 8 can have plastic or consist of plastic.
- the carrier layers 7, 8 can also have an adhesive, in particular a cured adhesive.
- the magnetic layer 9 has, for example, a non-magnetic material 12 filled with magnetic particles 11.
- the non-magnetic material 12 can be a plastic.
- the magnetic material 12 can also be an adhesive.
- the thickness d of the magnetic layer 9 is also referred to as the magnetic thickness of the film 2.
- the total thickness D of the film is derived from the thickness of the carrier layers 7, 8 and the
- Thickness d of the magnetic layer 9 is formed.
- the thickness of the film 2 is a maximum of 100 ⁇ m.
- Ferrite for example, is suitable as the material for the magnetic particles 11.
- pure iron or an amorphous or nanocrystalline iron alloy can also be used.
- the material can be in powder form. In particular, it can also be a highly permeable material, for example with a permeability of m> 1000.
- the magnetic layer 9 can also consist entirely or mainly of a magnetic material. In particular, the magnetic layer 9 can only have the magnetic material and no non-magnetic carrier material. In particular, the magnetic material is not present in the form of individual particles, but rather as a continuous layer.
- the magnetic layer 9 is in the form of an iron tape.
- the band can have ferrite, pure iron or an iron alloy as material.
- the carrier layers 7, 8 are particularly advantageous when using brittle magnetic layers 9, for example an iron strip.
- some highly permeable materials have a high degree of brittleness. Due to the carrier layers 7, 8, the shape and the magnetic properties can be retained in the event of cracks in the magnetic layer 9.
- a film 2 without a carrier layer can also be used. It is also possible that an adhesive, which can simultaneously serve to attach the film 2 to the component 1, ensures the stability of the film 2 in the event of cracks. In this case, too, the film 2 can be formed without an additional carrier layer 7, 8 even if a brittle magnetic layer 9 is used.
- the magnetic layer 9 can also be made up of several sub-layers. Each of the partial layers can have the structure of the magnetic layer 9 described above. The partial layers are, for example, glued to one another. In this way, the thickness d of the magnetic Layer 9 in the film 2 can be set.
- the thickness d of the magnetic layer 9 it can be determined how much a turn of the film 2 around the base body 6 influences the inductance of the component 1.
- the same magnetic thickness can be achieved as in an embodiment with a single-layer magnetic layer 9 with many turns, for example 20 turns.
- the total thickness of the film roll 13 can then differ greatly depending on the number of carrier layers 7, 8.
- the magnetic layer 9 is connected, for example, to the carrier layers 7, 8 by means of an adhesive, for example an adhesive.
- the magnetic layer 9 can also be connected to the carrier layers 7, 8 via a purely thermal process.
- the film 2 has, for example, an adhesive 10, in particular an adhesive, on one surface.
- the adhesive 10 can also be applied to both surfaces.
- the film 2 can thus be attached to the base body 6 in a self-adhesive manner.
- the adhesive 10 can also be applied subsequently to the base body 6 and / or the film 2.
- the layers 18, 19, 20, 21 can also be attached to one another by the adhesive 10.
- the film 2 can be processed flexibly like an adhesive tape, for example.
- FIGS. 4A to 4D show method steps when setting an inductance of an inductive component, for example the inductive component 1 according to FIG. 1.
- a base body 6 having a winding 3 of a wire 4 is provided.
- the base body 6 can be designed according to FIG.
- the inductance L of the basic body 6 can be determined by measurement.
- a film 2 is provided.
- the film 2 has the structure according to FIG. 3, for example.
- the film 2 can also have a magnetic layer which is formed over its entire volume by a magnetic material.
- the film 2 can be designed with or without carrier layers.
- the film 2 is provided in the form of a roll 17, for example.
- the film 2 can be designed to be self-adhesive.
- a protective film can be present to cover the adhesive surface, which is then removed before sticking on.
- an adhesive in particular an adhesive, can be applied.
- the film 2 is wrapped around the base body 6.
- the number of turns of the film roll 13 obtained is determined, for example, as a function of the deviation of the measured inductance from a nominal value of the inductance.
- two turns, corresponding to two layers 18, 19, are applied in a first step.
- an insulating layer can also be applied to the wire winding 3 before the film 2 is applied.
- the film 2 can be cut to the desired length before or after being wrapped. As shown, a part of the film 2, in particular the roll 17, can also protrude from the film roll 13 and only be cut off later, as soon as the nominal value of the inductance has been reached.
- the inductance L of the component 1 can be determined. If the inductance value corresponds to the target value, if a part of the film 2 is still protruding, this part of the film 2 is cut off. The number of windings can now be specified for a group of identical components, so that no measurement is required for these components during manufacture.
- the film 2 is wound further around the base body 6 or a separate film 2 is wound around the base body 6.
- the magnetic thickness and thus the inductance can be set very precisely.
- the thickness can be varied in small steps, for example in 2.5% steps.
- the film can be wrapped around the base body 6 in 1.5 turns.
- the number can of the turns can be reduced or a film 2 with a smaller thickness of the magnetic layer 9 can be used.
- the measured inductance is not yet sufficiently close to the target value, so that the film 2 continues to be wrapped around the base body 6.
- an electrical shield 16 can optionally also be applied to the film roll 13.
- the foil roll 13 is wrapped with one or more layers of a further metallic foil or coated with a metallic material.
- a metallic foil such as copper foil, aluminum foil or tinned copper foil is applied to the magnetic foil.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Multimedia (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112022001853A BR112022001853A2 (pt) | 2019-09-20 | 2020-09-17 | Componente de indução e método para ajustar um valor de indutância |
US17/761,886 US20220336150A1 (en) | 2019-09-20 | 2020-09-17 | Inductive component and method for adjusting an inductance value |
KR1020227013037A KR20220062644A (ko) | 2019-09-20 | 2020-09-17 | 유도성 부품 및 인덕턴스 값을 조정하는 방법 |
EP20775254.4A EP4032108A1 (de) | 2019-09-20 | 2020-09-17 | Induktives bauelement und verfahren zur einstellung eines induktivitätswertes |
JP2022517481A JP2022548926A (ja) | 2019-09-20 | 2020-09-17 | 誘導構成要素、およびインダクタンス値を調整する方法 |
CN202080065650.8A CN114450764A (zh) | 2019-09-20 | 2020-09-17 | 电感部件和用于调节电感值的方法 |
IL291399A IL291399A (en) | 2019-09-20 | 2022-03-15 | An inductive component and a method for adjusting an inductive value |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019125402 | 2019-09-20 | ||
DE102019125402.7 | 2019-09-20 |
Publications (1)
Publication Number | Publication Date |
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WO2021053068A1 true WO2021053068A1 (de) | 2021-03-25 |
Family
ID=72561779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2020/075971 WO2021053068A1 (de) | 2019-09-20 | 2020-09-17 | Induktives bauelement und verfahren zur einstellung eines induktivitätswertes |
Country Status (8)
Country | Link |
---|---|
US (1) | US20220336150A1 (de) |
EP (1) | EP4032108A1 (de) |
JP (1) | JP2022548926A (de) |
KR (1) | KR20220062644A (de) |
CN (1) | CN114450764A (de) |
BR (1) | BR112022001853A2 (de) |
IL (1) | IL291399A (de) |
WO (1) | WO2021053068A1 (de) |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1090817B (de) * | 1960-01-07 | 1960-10-13 | Telefunken Gmbh | Pillenfoermiger, verschluckbarer Sender |
US2976502A (en) * | 1958-03-13 | 1961-03-21 | Aladdin Ind Inc | Inductive devices |
JPS505850A (de) * | 1973-05-19 | 1975-01-22 | ||
DE3020400A1 (de) * | 1979-06-05 | 1980-12-18 | Philips Nv | Transformator |
JPS6066804A (ja) * | 1983-09-23 | 1985-04-17 | Nippon Telegr & Teleph Corp <Ntt> | コモンモ−ドチヨ−クコイル |
DE3618122A1 (de) | 1986-05-30 | 1987-12-03 | Johann Leonhard Huettlinger | Abgleichbare filterspule |
DE3926231A1 (de) | 1989-08-09 | 1991-02-14 | Kolbe & Co Hans | Kleine abgleichbare induktivitaet |
EP0678880A1 (de) * | 1994-04-22 | 1995-10-25 | Panex Corporation | Induktiver Verbinder für Bohrlochwerkzeuge |
KR19980028930U (ko) * | 1996-11-26 | 1998-08-05 | 이형도 | 칩 코일 |
DE19952192A1 (de) | 1999-10-29 | 2001-04-12 | Siemens Ag | Verfahren zum Abgleichen einer elektronischen Schaltung, insbesondere einer Oszillatorschaltung |
US20080055034A1 (en) * | 2006-08-25 | 2008-03-06 | Taiyo Yuden Co., Ltd. | Inductor using drum core and method for producing the same |
DE102008063312A1 (de) | 2008-12-30 | 2010-07-08 | Siemens Aktiengesellschaft | Vorabgleichbare SMD-Spulen für hohe Ströme |
JP2016136698A (ja) * | 2015-01-23 | 2016-07-28 | Necトーキン株式会社 | アンテナ構造体、非接触電力伝送機構及び電子機器 |
CN206250044U (zh) * | 2016-07-01 | 2017-06-13 | 内蒙古中星电子有限公司 | 一种电感制作结构 |
-
2020
- 2020-09-17 US US17/761,886 patent/US20220336150A1/en active Pending
- 2020-09-17 JP JP2022517481A patent/JP2022548926A/ja active Pending
- 2020-09-17 KR KR1020227013037A patent/KR20220062644A/ko unknown
- 2020-09-17 CN CN202080065650.8A patent/CN114450764A/zh active Pending
- 2020-09-17 EP EP20775254.4A patent/EP4032108A1/de active Pending
- 2020-09-17 WO PCT/EP2020/075971 patent/WO2021053068A1/de active Search and Examination
- 2020-09-17 BR BR112022001853A patent/BR112022001853A2/pt unknown
-
2022
- 2022-03-15 IL IL291399A patent/IL291399A/en unknown
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2976502A (en) * | 1958-03-13 | 1961-03-21 | Aladdin Ind Inc | Inductive devices |
DE1090817B (de) * | 1960-01-07 | 1960-10-13 | Telefunken Gmbh | Pillenfoermiger, verschluckbarer Sender |
JPS505850A (de) * | 1973-05-19 | 1975-01-22 | ||
DE3020400A1 (de) * | 1979-06-05 | 1980-12-18 | Philips Nv | Transformator |
JPS6066804A (ja) * | 1983-09-23 | 1985-04-17 | Nippon Telegr & Teleph Corp <Ntt> | コモンモ−ドチヨ−クコイル |
DE3618122A1 (de) | 1986-05-30 | 1987-12-03 | Johann Leonhard Huettlinger | Abgleichbare filterspule |
DE3926231A1 (de) | 1989-08-09 | 1991-02-14 | Kolbe & Co Hans | Kleine abgleichbare induktivitaet |
EP0678880A1 (de) * | 1994-04-22 | 1995-10-25 | Panex Corporation | Induktiver Verbinder für Bohrlochwerkzeuge |
KR19980028930U (ko) * | 1996-11-26 | 1998-08-05 | 이형도 | 칩 코일 |
DE19952192A1 (de) | 1999-10-29 | 2001-04-12 | Siemens Ag | Verfahren zum Abgleichen einer elektronischen Schaltung, insbesondere einer Oszillatorschaltung |
US20080055034A1 (en) * | 2006-08-25 | 2008-03-06 | Taiyo Yuden Co., Ltd. | Inductor using drum core and method for producing the same |
DE102008063312A1 (de) | 2008-12-30 | 2010-07-08 | Siemens Aktiengesellschaft | Vorabgleichbare SMD-Spulen für hohe Ströme |
JP2016136698A (ja) * | 2015-01-23 | 2016-07-28 | Necトーキン株式会社 | アンテナ構造体、非接触電力伝送機構及び電子機器 |
CN206250044U (zh) * | 2016-07-01 | 2017-06-13 | 内蒙古中星电子有限公司 | 一种电感制作结构 |
Also Published As
Publication number | Publication date |
---|---|
JP2022548926A (ja) | 2022-11-22 |
EP4032108A1 (de) | 2022-07-27 |
US20220336150A1 (en) | 2022-10-20 |
BR112022001853A2 (pt) | 2022-06-21 |
CN114450764A (zh) | 2022-05-06 |
IL291399A (en) | 2022-05-01 |
KR20220062644A (ko) | 2022-05-17 |
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