EP1864303B1 - Tore magnetique - Google Patents

Tore magnetique Download PDF

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Publication number
EP1864303B1
EP1864303B1 EP06723305A EP06723305A EP1864303B1 EP 1864303 B1 EP1864303 B1 EP 1864303B1 EP 06723305 A EP06723305 A EP 06723305A EP 06723305 A EP06723305 A EP 06723305A EP 1864303 B1 EP1864303 B1 EP 1864303B1
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EP
European Patent Office
Prior art keywords
magnetic
magnetic core
elements
core
magnetic elements
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.)
Not-in-force
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EP06723305A
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German (de)
English (en)
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EP1864303A1 (fr
Inventor
Wulf GÜNTHER
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Vacuumschmelze GmbH and Co KG
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Vacuumschmelze GmbH and Co KG
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/04—Cores, Yokes, or armatures made from strips or ribbons
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/0006—Printed inductances
    • 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
    • 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
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/0006—Printed inductances
    • H01F2017/0066—Printed inductances with a magnetic layer

Definitions

  • the invention relates to magnetic cores for inductive components according to the preamble of claim 1.
  • Such magnetic cores are for example from US 3,543,249A known.
  • a special design and also the subject of the invention are cores with an air gap, in which the magnetic flux thus leaves the magnetic material at least once within the magnetic circuit.
  • cores with an air gap for slotted ring band, oval band, rectangular cores or similar If the air gap is small compared with the so-called iron path length located in the magnetic material, then the magnetic path in the magnetic material and thus the core must be curved.
  • the magnetic core In rod cores, the magnetic core is elongated, the magnetic flux exits at least partially from the rod ends and is returned by the environment, here is the path length in non-magnetic medium (eg air) longer than in the magnetic material.
  • non-magnetic medium eg air
  • other mixed forms eg U-Kexne. In all these forms, the flow does not occur only at the core ends (facing the air gap), but also at the sides. In the case of the realization of the core of elongate sheet-like or fibrous elements considered here, flow thus occurs not only from the end faces of the elements, but also from the side surfaces, which leads to additional problems in comparison to the known solid, isotropic magnetic materials.
  • the invention thus relates to all open (the magnetic flux exits the magnetic material at least once) magnetic cores made of laminated magnetic elements. Because of their ease of presentation and their greatest relevance, rod kernels will be considered below.
  • the embodiments may e.g. be transformed to slotted toroidal cores by the rod core is curved so that the rod ends face each other.
  • Bar cores are used, for example, as an antenna core. They bundle the magnetic flux more effectively in both transmit and receive antennas than in air coils.
  • Such an effective effect of a magnetic core in conjunction with a winding surrounding it is necessary, for example, for achieving an optimized transmission or reception power. This may be necessary, for example, for the transmission of information, but also for the transmission of energy.
  • Corresponding inductive components are used both in anti-theft, identification and access systems for exchanging information over distances of about 5 m, as well as for inductive energy transmission, such as battery charging (cf. GB 2388715 A ) or for energy supply of sensors or actuators (cf. US 3938018 ).
  • the design of the antenna and its control is crucial.
  • a maximum flux must be generated in the magnetic core.
  • Core core losses or losses in the antenna coils due to ohmic power, Proximity effect etc. are to be minimized in order to optimize the efficiency as a result.
  • re-magnetization losses would also lead to a self-heating of the magnetic core in addition to a reduction of the transmission power, which can lead to damage to the winding or other components in its environment.
  • Such a magnetic core as is required for an antenna, is usually constructed as a rod core in the form of a cuboid, which is surrounded by one or more coils.
  • the flow mostly comes from the end faces in the direction of the longitudinal axis of the cuboid, but partly also from the side faces and especially at the edges of the core ends. In these areas of the corners and edges at the core end, there is usually a flux concentration and thus an overload by saturation. It is the solution known to bevel the edges ( EP 762535 B1 ).
  • ferrites or soft magnetic metals are known as material for the magnetic core.
  • Such materials are typically homogeneous and i-sotropic such that the permeability is a scalar and not a tensor 2nd stage. This means that the flux in the magnetic core propagates in a straight line and according to an expected field in air.
  • Typical magnetic reversal losses can be described in metallic material in the frequency range to be considered here, which is for example between 15 and 150 kHz, by the formula: P ⁇ B 2 f 2 d 2 .
  • B induction amplitude
  • f frequency
  • d spatial extent, ie smallest diameter of the eddy current path.
  • the present invention has the object of a magnetic core to designed to be particularly efficient in terms of the prevention of eddy current losses or Ummagnetmaschineswen and on a uniform distribution of the flow to avoid saturation effects. Furthermore, the invention has for its object to provide an arrangement with a magnetic core according to the invention, which allows a particularly effective use as an inductive element for an antenna or similar device.
  • the invention is based on the finding that both eddy current losses can be effectively limited, and the flux distribution to the various magnetic elements within a magnetic core can be optimized if the elements are not equal to one another, d. H. If at least one of the magnetic elements differs from the rest by the presence, nature and location of incisions in the magnetic elements.
  • Magnetic cores and arrangements according to the invention are suitable for a frequency range of 5 kHz to 10 MHz, in particular from 15 kHz to 150 kHz. In this area, the advantages of the invention are also particularly effective.
  • the outer magnetic elements in rod-shaped elements around the outer layer in strip or band-shaped elements, the two outer bands are provided with a lower material permeability than the other bands, so pull the centrally arranged magnetic elements by their higher permeability of the incoming flow at.
  • the overloaded by the obliquely incident in the side surfaces of the magnetic core flow components outer magnetic elements are relieved and this leads to an overall homogenization of the flow distribution.
  • This design can also be modified to increase the material permeability continuously or in stages from the outside to the inside of the individual magnetic elements.
  • the magnetic elements are expediently arranged so that the outer shortened magnetic elements of the bundle remain symmetrically at both ends behind the ends of the centrally arranged magnetic elements. It can also be provided that not only the outermost magnetic elements are shortened, but that from the inside to the outside or from the center to a side in band-shaped magnetic elements or on both sides of a continuous shortening of the magnetic elements is provided.
  • a magnetic core which consists of band-shaped magnetic elements having different dimensions.
  • this measure is not related to an improvement in the power loss associated there and there is a yoke body for a transformer, the magnetic elements also differ not in length, but the width.
  • the outer of the magnetic elements (in rod-shaped magnetic elements, the radially outermost layer, in the case of strip-shaped magnetic elements, the two outer layers) are curved away from the central longitudinal axis of the magnetic core at their ends.
  • the magnetic core is particularly well adapted to the typical fan-shaped flow pattern of a dipole field outside the magnetic core. Obliquely entering into the end face of the magnetic core flux lines meet almost perpendicular to the end faces of the fan-shaped expanded magnetic elements, if they have as usual cuboid or cylindrical shape. This has, as described above, advantageous effects on the reduction of eddy current losses and on a uniform distribution of the flux density across the cross section of the magnetic core.
  • the magnetic core can be designed so that only the outer layer of the magnetic elements is correspondingly curved, but it can also be provided that from the outer layer towards the center, the individual magnetic elements have a decreasing curvature away from the longitudinal axis, so that in a longitudinal section results in a typical fan-shaped course of the magnetic elements, either in three dimensions in rod-shaped magnetic elements or in only two dimensions in strip or band-shaped magnetic elements.
  • the magnetic elements are formed in the outermost position or at the greatest distance from the central longitudinal axis of the magnetic core thinner or with a smaller cross-sectional area than the central magnetic elements of the magnetic core.
  • the outermost magnetic elements may be provided that only the outermost magnetic elements differ from the others with regard to the thickness or the cross section or, on the other hand, that a stepwise or more or less continuous increase in the thickness of the individual magnetic elements is provided from outside to inside.
  • the outer magnetic elements may be in a magnetic core, the outer magnetic elements have a lower material permeability than the inner and at the same time be bent outwardly at their ends.
  • the thickness of the individual magnetic elements can decrease toward the outside.
  • thin strip conductors for example, which are present as nanocrystalline, soft-magnetic materials and, for example, can also be produced in rapid solidification technology, can be kept in stock with correspondingly different features.
  • different magnetic elements are then assembled in terms of material permeability, thickness and length. It is also possible to keep already pre-curved magnetic elements in stock.
  • curvature of the ends of magnetic elements it may also be provided, after the assembly of a magnetic core, to fan out the outer magnetic elements at their ends by a tool and thereby to produce a corresponding curvature away from the longitudinal axis.
  • the features mentioned can also be asymmetrically distributed in a magnetic core, in order to take account of corresponding ambient conditions which produce an asymmetrical flux distribution.
  • Another advantage is the reduction in effective bandwidth in areas where flux components enter the tape layers vertically. For these components, it is not the strip thickness that determines the re-magnetization losses, but the width, which must then be used in the formula given above for the losses for the bandwidth.
  • the interruption of the eddy current paths is sufficient, ie in the simplest case a cutting of the tape layers parallel to the tape longitudinal axis. Ideal, but technically more difficult is the cutting exactly along the field lines, ie obliquely away from the belt center axis.
  • the reduction in losses is particularly effective when the resulting bandwidth is small, technically feasible e.g. in the order of 0.3-2 mm.
  • a noticeable reduction can be achieved even if e.g. a 12 mm wide strip is divided into three.
  • the potential for improvement increases with increasing frequency: at e.g. 10 kHz, with the same subdivision, a lower benefit is achieved than with e.g. 1 MHz.
  • the division can be done in addition to cutting by sawing, etching, eroding, etc. Of course, this measure can be combined as desired with all other measures mentioned.
  • an inductive element is constructed with the magnetic core according to the invention and a coil in the form of a winding
  • the effect according to the invention can be enhanced by virtue of the winding density being applied to at least one of the ends of the winding
  • Magnetic core increases and / or the winding extends beyond one of the ends of the magnetic core addition.
  • an asymmetrical variant of the magnetic core is designed and arranged with respect to the asymmetric magnetic field, that on the one hand the entry of flux lines through lateral boundary surfaces of the magnetic core minimized and on the other hand, the distribution of the flow on the cross section of the magnetic core as a whole is made as uniform as possible.
  • This is the case, for example, in arrangements in which a transmitting antenna and a receiving antenna are located at a small distance in order to transmit energy, for example for charging a battery, via an air gap.
  • the resulting magnetic field profile is highly asymmetrical and this fact can be taken into account by the embodiment described.
  • a magnetic core consisting of band-shaped or strip-shaped magnet elements in such a way that they lie obliquely on one side of the magnet core in its side surfaces entering flux lines on the narrow sides of the corresponding belt-shaped magnetic elements.
  • the magnetic core only needs to be aligned so that the interfaces between the band-shaped magnetic elements are aligned parallel to the incident flux lines.
  • the thickened ends act as a kind of pole piece through which flow lines increasingly enter the respective magnetic element.
  • Such thickened at the ends of magnetic elements may be arranged in particular in the inner region of a magnetic core to capture in this area a particularly large number of flux lines and thus to equalize the flux density, since in the outer region, the magnetic elements, as described above, additionally capture the obliquely incoming flow lines.
  • the outer magnetic elements are thinned at their ends, so that as a whole results in a cuboid cross-section of the magnetic core.
  • the described thickening of individual magnetic elements can be provided without problems, in particular when the ends are fanned out, when they are curved away from the longitudinal axis of the magnetic core.
  • FIG. 1 shows a magnetic core 1, which is made as a laminate of many rectangular, equal-sized, strip-shaped magnetic elements 2 to 8, which are connected, for example, with the interposition of thin plastic layers by means of adhesive.
  • the individual magnetic elements 2 to 8 may consist, for example, of an amorphous or nanocrystalline metallic material having soft-magnetic properties, from which high-performance magnets can be produced.
  • Such magnetic cores can be used to form inductive components, for example using a surrounding winding.
  • a component for an antenna for transmitting information or for transmitting energy can serve such powerful magnetic cores.
  • FIG. 2a schematically shows in this respect a simple structure with a magnetic core 1 ', which is surrounded by a winding 9 with the two terminals 10, 11.
  • the flux lines 12, 13, 14 are shown, which correspond to the course of a normal magnetic dipole field.
  • the longitudinal axis 15 of the magnetic core is registered.
  • FIG. 2b the same magnetic core 1 'is shown, wherein the laminated construction is not shown separately, and wherein in addition to the magnetic core on the left side another soft magnetic body 16 is drawn with high permeability, which attracts the magnetic flux.
  • another soft magnetic body 16 is drawn with high permeability, which attracts the magnetic flux.
  • Figure 2c shows the magnetic core 1 'in an arrangement with a non-magnetic metal plate 17, which displaces the magnetic flux due to the induced in the metallic body eddy currents, which counteract the magnetic field. Accordingly, the flux lines 18 preferably close over the air gap via the right side of the magnetic core 1 '.
  • Figure 2d shows the magnetic core 1 'in an annular configuration with a gap in the vicinity of which flow lines 19 emerge from the core material.
  • FIG. 3b shows a similar distribution of flux lines in a magnetic core 28, which is composed of individual band-shaped magnetic elements 29, 30. It can be seen that in the outer region of the magnetic core 28, the distribution of the flux lines 31, 32 approximately equal to the distribution in a solid magnetic core as in FIG. 3a shown corresponds.
  • the eddy current losses which typically occur due to magnetization reversal are caused in each case by the annular flow of electrical currents perpendicular to the direction of flow in the material.
  • the eddy current paths, which in the FIG. 4 are designated 33, 34, have substantially circular shape and the loss occurring is proportional to the square of the maximum for an eddy current path available diameter d ', d ".
  • Magnetic elements in strip or strip form are available in thicknesses of less than 10 ⁇ m. Typical are thicknesses between 10 and 30 microns.
  • the aim of the various measures according to the invention is to concentrate the flow within the magnetic core substantially in flow directions extending longitudinally thereof and to distribute the flow to the individual magnetic elements as evenly as possible.
  • FIG. 5a a magnetic core 70 for a symmetrical dipole field in which the outer band layers are shortened with respect to the inner ones. Accordingly, obliquely entering into the core flow lines do not enter all in the lateral boundary surface of the outermost magnetic element 35, but partially also in the second outermost magnetic element 36, where it projects beyond the outermost magnetic element 35.
  • the same distribution is shown on the other side of the longitudinal axis 37, so that ademandbau- ⁇ Trent the distribution of the flux density is achieved on the various magnetic elements 35, 36 and in particular - unlike the prior art in FIG. 3b shown - are also distributed obliquely incident components on different magnetic elements. This also results in an effective distribution of the power loss and thus a lower probability of local overheating of the magnetic core.
  • FIG. 5b shows a stepped structure with a trapezoidal longitudinal sectional view of a magnetic core 70 ', which is useful when the corresponding magnetic core is to be used in an asymmetric magnetic field.
  • the flux density above the magnetic body is substantially greater than below, for example because above the magnetic body, a soft magnetic further body is positioned, which is not shown.
  • the differences in length between the individual magnetic elements 35, 36 can vary over the entire stack of a magnetic core more than 5%, in particular more than 10%.
  • FIG. 6a shows a variant in which the ends of the magnetic elements are curved away from the longitudinal axis 41 in a core 80 of magnetic elements 38, 39, 40.
  • This allows the flow lines 42, 43 an entrance preferably in the end faces of the magnetic elements 38, 40, so that there the flow within the respective magnetic element initially extends in the longitudinal direction and corresponding eddy current losses are kept low.
  • the flux then substantially follows its curvature, so that the flux lines are also bundled with the centered in the center magnetic elements.
  • the body 44 may be a nonmagnetic metal plate that displaces the magnetic flux so that the density of the magnetic flux above the magnetic core 80 'is greater than below.
  • the lowermost magnetic element 45 may then be formed straight, the magnetic elements 46, 47 arranged above are each curved at their ends away from the longitudinal axis of the magnetic core in order to allow an optimized entry of the flux lines into the magnetic elements.
  • FIG. 1 Another variant of the embodiment of the invention is intended in connection with the FIG. 1 be explained in the geometrically similar magnetic elements 2 to 8 are layered according to the prior art.
  • these magnetic elements 2 to 8 can also be equipped with different material permeability, wherein either only the outermost, 2 and 8 are provided with a reduced material permeability or more of the magnetic elements 2 to 8 are provided from the inside to the outside with decreasing material permeability.
  • the highest material permeability should be achieved in the central area of the stack, for example in the magnetic elements 4, 5 and 6.
  • the differences between the permeabilities ( ⁇ max - ⁇ min) should be at least 10% over the entire core, preferably more than 100% relative to the average Permeability.
  • the central magnetic elements because of their higher permeability, attract the flow more strongly, so that the effect that the laterally incident flow is additionally captured in the outer magnetic elements is somewhat compensated. Thereby, a uniform distribution of the flow can be achieved on the cross section of the magnetic core.
  • Figure 7a In order to achieve optimized magnetic properties, a magnetic core consisting of magnetic elements of different thicknesses decreases, the thickness decreasing from the inside to the outside. The outermost magnetic element 48 is thus thinner than the remaining magnetic elements.
  • asymmetrical structure of such a thickness distribution shown there of course also an asymmetric structure analogous to that in FIG. 5b and FIG. 6b be provided shown.
  • FIG. 7b shows an embodiment of a magnetic core, in which at the ends of the magnetic elements 49 respectively thickenings 50, 51 are provided at one or both ends of each magnetic element to facilitate the entry of flux lines. It can also be provided that only certain of the magnetic elements have corresponding thickenings, namely those magnetic elements into which the flow is to be preferably directed, for example, only the centrally arranged magnetic elements.
  • the magnetic elements each increase in thickness from its center with respect to the length towards the ends and that in the stack and magnetic elements are provided with different contour to this in the Compensate total stack and come to a cuboid magnetic body.
  • the magnetic elements becoming thicker towards their end would optimally be arranged in the center of the stack, while the magnetic elements becoming thinner towards their ends should be provided in the outer layers in order to achieve a uniform flux distribution with low power loss.
  • FIG. 8a shows a stack of magnetic elements 52, 53 which form a magnetic core 90, wherein in the outermost magnetic element 52 incisions 54, 55 are provided, which completely pass through the magnetic element 52 perpendicular to its band plane.
  • FIG. 8b shows a further development in which cuts in the longitudinal direction of the magnetic elements enforce them all, which here leads to a bundle of rod-shaped magnetic elements or magnetic elements of smaller width, which are arranged above and next to each other.
  • FIG. 9 shows two measures that can be provided in an inventive arrangement with a magnetic core 58 and a winding 59. Since at the end of a winding, especially when it does not coincide with the end of the magnetic core, especially many flux lines emerge laterally from the magnetic core, this area is particularly critical for the unwanted flux components perpendicular to the side surfaces of the magnetic core. It may therefore be provided on the one hand, as is the case at the upper end of the coil 59 shown, to guide the winding beyond the end of the magnetic core. This can be done, for example, that the magnetic core is surrounded by a sleeve on which the winding is wound and which projects beyond this at both ends or at one end of the magnetic core.
  • the winding 59 is strongly gathered, that is, the winding density per unit length in the longitudinal direction of the magnetic core is greatly increased there.
  • An advantage is an increase of at least 10% of the winding density.
  • the winding ends at this lower end on the front side of the magnetic core.
  • the flux lines running in the magnetic core are bundled particularly effectively, so that the Leakage of oblique field components at the edges of the end face of the magnetic core is reduced.
  • the FIG. 9 is to be understood as an example and it is understood that both measures, gathering the winding and the protrusion of the winding over the ends of the magnetic core can also be applied to both ends of the magnetic core and combined with each other. Incidentally, these two measures can also be advantageous independently of the measures mentioned in claim 1.
  • FIG. 10a shows a base plate 60 which is made of, for example, aluminum or other metal which is non-magnetic and displaces the magnetic field lines.
  • a magnetic core 61 can be arranged, which consists of band-shaped magnetic elements which rest flat on the plate 60 and are arranged above the plate parallel thereto.
  • the magnetic flux will tend to close on the side of the magnetic core 61 facing away from the plate 60, that is, the majority of the flux lines 62, 63 will emerge in arc from the magnetic core 61, out of the plane of the drawing and upwards , This inevitably leads to the increased occurrence of flow components perpendicular to the plane of the band-shaped magnetic elements, which is associated with an increased flux density at the top magnetic elements and an increase in the eddy current losses just there.
  • the band planes of the magnetic elements are perpendicular to the plate 60 in this geometric constellation, so that the obliquely flowing out flow lines 64, 65 no components perpendicular to the band plane but only components in the band plane whose eddy current losses can be limited by the small thickness of the individual magnetic elements (see above explanations to FIG. 4 ).
  • This measure can also be combined with the other measures described with reference to the embodiments.
  • the stack height that is, the extension of the magnetic core perpendicular to the planes of the belt-shaped magnetic members
  • the width of the stack that is, the dimensions of the core perpendicular to this direction in the width direction of the individual magnetic members.
  • the antennas according to the invention were compared as far as possible with the exception of the respective modifications described.
  • Antenna is 5 mm away on aluminum plate, with the shorter tape package to the plate 30 233 1.7 Like., According to the invention with the longer tape package lying to the sheet 38 183 1.7
  • Three superimposed geometrically identical sub-stacks, wherein inner sub-stacks have a factor of 5 higher initial permeability than the outer layers ( reference) 34 210 1.8
  • an antenna core of 200 layers of co-amorphous band with ⁇ i 1800 and a thickness of 22 microns (thus resulting in a thin insulating layer and a conventional band-filling factor of 80%, a stack height of approx. 6 mm), width 12.5 mm, length 300 mm.
  • a 70 kHz sinusoidal drive and an average modulation of 100 mT a power consumption of 4.5 W and an antenna quality of 35 were measured. The power consumption is a measure of the re-magnetization losses.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Soft Magnetic Materials (AREA)
  • Transformers For Measuring Instruments (AREA)

Claims (21)

  1. Tore magnétique (1, 1', 20, 28, 29, 58, 61, 70, 70', 80, 80', 90) en un alliage métallique d'un axe longitudinal rectiligne ou courbe, parallèlement auquel un flux magnétique doit être guidé essentiellement à l'intérieur du tore magnétique, ce tore magnétique étant constitué par l'association d'une série d'éléments magnétiques (2, 3, 4, 5, 6, 7, 8, 29, 30, 35, 36, 38, 39, 40, 48, 49, 52, 53) parallèles les uns aux autres et réalisés sous la forme de barres ou de bandes,
    caractérisé en ce qu'
    au moins l'un des éléments magnétiques (2, 3, 4, 5, 6, 7, 8, 29, 30, 35, 36, 38, 39, 40, 48, 49, 52, 53) se distingue des autres par la présence, la nature et la position d'entailles (54, 55) dans les éléments magnétiques.
  2. Tore magnétique conforme à la revendication 1,
    caractérisé en ce que
    plusieurs des éléments magnétiques (2, 3, 4, 5, 6, 7, 8, 29, 30, 35, 36, 38, 39, 40, 48, 49, 52, 53) se distinguent d'autres éléments magnétiques en fonction de leur position à l'intérieur du tore magnétique (1, 1', 20, 28, 29, 58, 61, 70, 70', 80, 80', 90) par la présence, la nature et la position d'entailles (54, 55) dans les éléments magnétiques.
  3. Tore magnétique conforme à la revendication 1 ou 2,
    caractérisé en ce que
    les éléments magnétiques (2, 3, 4, 5, 6, 7, 8, 29, 30, 35, 36, 38, 39, 40, 48, 49, 52, 53) sont répartis symétriquement au dessous des autres éléments magnétiques relativement à la section du tore magnétique (1, 1', 20, 28, 29, 58, 61, 70, 70', 80, 80', 90) par rapport à un axe médian ou à un plan médian.
  4. Tore magnétique conforme à la revendication 1,
    caractérisé en ce qu'
    en allant de l'axe longitudinal médian du tore magnétique (1, 1', 20, 28, 29, 58, 61, 70, 70', 80, 80', 90) à l'un de ses côtés, les éléments magnétiques (2, 3, 4, 5, 6, 7, 8, 29, 30, 35, 36, 38, 39, 40, 48, 49, 52, 53) présentent, lorsque la distance augmente :
    - une perméabilité décroissante et/ou
    - une longueur décroissante et/ou
    - une courbure croissante en s'éloignant de l'axe longitudinal et/ou
    - une épaisseur devenant plus faible et/ou
    - un nombre croissant d'entailles et/ou une profondeur croissante de ces entailles.
  5. Tore magnétique conforme à la revendication 4,
    caractérisé en ce que
    le tore magnétique (1, 1', 20, 28, 29, 58, 61, 70, 70', 80, 80', 90) est réalisé avec une symétrie miroir par rapport à un plan médian renfermant l'axe longitudinal (15, 37, 41).
  6. Tore magnétique conforme à la revendication 4,
    caractérisé en ce que
    le tore magnétique (1, 1', 20, 28, 29, 58, 61, 70, 70', 80, 80', 90) est réalisé avec une symétrie radiale par rapport à son axe longitudinal.
  7. Tore magnétique conforme à l'une des revendications 1 à 6,
    caractérisé en ce que
    les éléments magnétiques situés sur une ou plusieurs faces latérales (26, 27) du tore magnétique (1, 1', 20, 28, 29, 58, 61, 70, 70', 80, 80', 90) se distinguent des autres éléments magnétiques par au moins l'une des caractéristiques susmentionnées.
  8. Tore magnétique conforme à la revendication 7,
    caractérisé en ce que
    entre les éléments magnétiques (2, 3, 4, 5, 6, 7, 8, 29, 30, 35, 36, 38, 39, 40, 48, 49, 52, 53), situés sur les faces latérales du tore magnétique (1, 1', 20, 28, 29, 58, 61, 70, 70', 80, 80', 90) et l'axe longitudinal du tore magnétique, il y a une transition continue ou par paliers par rapport à l'importance de la différence concernant l'une des caractéristiques susmentionnées.
  9. Tore magnétique conforme à l'une des revendications 1 à 8,
    caractérisé en ce que
    les éléments magnétiques (46, 47) directement situés sur une face latérale du tore magnétique, sont courbés à leurs extrémités en s'éloignant de l'axe longitudinal du tore magnétique.
  10. Tore magnétique conforme à l'une des revendications 1 à 9,
    caractérisé en ce que
    les éléments magnétiques (52) sont réalisés en forme de bandes, et, au moins les éléments magnétiques extérieurs du tore magnétique, comportent une ou plusieurs entailles (54, 55) dirigées parallèlement les unes aux autres, et traversant en totalité l'élément magnétique considéré, ces entailles s'étendant de l'extrémité de cet élément magnétique à la partie interne de celui-ci, et subdivisant sa largeur.
  11. Tore magnétique conforme à l'une des revendications 1 à 10,
    caractérisé en ce que
    les éléments magnétiques (2, 3, 4, 5, 6, 7, 8, 29, 30, 35, 36, 38, 39, 40, 48, 49, 52, 53) sont réalisés en un matériau magnétique doux en particulier en un matériau nanocristallin, ou en un matériau magnétique vitreux obtenu par la technologie de solidification rapide.
  12. Tore magnétique conforme à l'une des revendications 1 à 11,
    caractérisé en ce que
    certains des éléments magnétiques (49) présentent une section augmentée vers leurs extrémités (50, 51), et, en particulier d'autres éléments magnétiques présentent une section diminuée vers leurs extrémités.
  13. Tore magnétique conforme à la revendication 12,
    caractérisé en ce que
    les éléments magnétiques qui présentent une surface augmentée vers leurs extrémités sont situés au centre du tore magnétique alors que des éléments magnétiques ayant une section restant constante sur leur longueur ou une section diminuée vers leurs extrémités, sont situés sur les faces extérieures du tore magnétique.
  14. Tore magnétique conforme à l'une des revendications précédentes,
    caractérisé en ce qu'
    au moins l'un des éléments magnétiques (2, 3, 4, 5, 6, 7, 8, 29, 30, 35, 36, 38, 39, 40, 48, 49, 52, 53) se distingue des autres par une ou plusieurs des caractéristiques suivantes :
    - perméabilité du matériau
    - courbure
    - longueur
    - forme et/ ou dimension de la section.
  15. Dispositif comportant un tore magnétique conforme à l'une des revendications 1 à 14, et un bobinage électriquement conducteur (59) entourant ce tore,
    caractérisé en ce que
    la densité du bobinage augmente en allant vers au moins l'une des extrémités du tore magnétique (58).
  16. Dispositif comportant un tore magnétique conforme à l'une des revendications 1 à 14, et un bobinage électriquement conducteur (59) entourant ce tore,
    caractérisé en ce que
    le bobinage (59) s'étend axialement sur au moins l'une des extrémités du tore magnétique, en allant au-delà de cette extrémité.
  17. Dispositif comportant un tore magnétique conforme à l'une des revendications 1 à 14, et un bobinage électriquement conducteur entourant ce tore,
    caractérisé en ce que
    la densité du bobinage augmente en allant vers au moins l'une des extrémités du tore magnétique (58), et le bobinage (59) s'étend axialement sur au moins l'une des extrémités du tore magnétique en allant au-delà de cette extrémité.
  18. Dispositif comportant un tore magnétique conforme à l'une des revendications 1 à 14,
    caractérisé en ce qu'
    il comporte un corps magnétiquement actif supplémentaire (16, 17, 44, 60) suite à la présence duquel le flux magnétique entre ou sort du tore magnétique de manière non symétrique.
  19. Dispositif conforme à la revendication 18,
    caractérisé en ce que
    le corps est un corps électriquement conducteur (17).
  20. Dispositif conforme à la revendication 18,
    caractérisé en ce que
    le corps (16) est réalisé en un matériau présentant une perméabilité magnétique > 1.
  21. Dispositif conforme à l'une des revendications 18 à 20,
    caractérisé en ce que
    le tore magnétique est réalisé et disposé de sorte que le flux magnétique sorte de manière prépondérante par les bords des éléments magnétiques.
EP06723305A 2005-04-01 2006-03-09 Tore magnetique Not-in-force EP1864303B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005015006A DE102005015006B4 (de) 2005-04-01 2005-04-01 Magnetkern
PCT/EP2006/002152 WO2006102972A1 (fr) 2005-04-01 2006-03-09 Tore magnetique

Publications (2)

Publication Number Publication Date
EP1864303A1 EP1864303A1 (fr) 2007-12-12
EP1864303B1 true EP1864303B1 (fr) 2012-05-02

Family

ID=36215780

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Application Number Title Priority Date Filing Date
EP06723305A Not-in-force EP1864303B1 (fr) 2005-04-01 2006-03-09 Tore magnetique

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US (1) US7782169B2 (fr)
EP (1) EP1864303B1 (fr)
AT (1) ATE556418T1 (fr)
DE (1) DE102005015006B4 (fr)
WO (1) WO2006102972A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8941447B2 (en) * 2010-12-22 2015-01-27 Ray M. Johnson Microwave pulse power switching system
JP2014531742A (ja) * 2011-08-16 2014-11-27 ジョージア テック リサーチ コーポレーション 接着剤を用いて積層したナノコンポジット膜を使用する磁気装置
DE102012207416A1 (de) * 2012-05-04 2013-11-07 Würth Elektronik eiSos Gmbh & Co. KG Ringkerndrossel
DE102013106624B4 (de) 2013-06-25 2018-03-29 Song Chuan Precision Co., Ltd. Verfahren zum formen eines kerns eines elektromagnetischen relais

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE475064C (de) * 1929-04-17 Aeg Verfahren zur Herstellung magnetisch stabiler Kerne fuer Induktionsspulen
CH265957A (de) * 1946-05-10 1949-12-31 Westinghouse Electric Corp Verfahren zur Herstellung von gewickelten lamellierten Kernkörpern für elektrische Apparate, insbesondere für Transformatoren.
US3031735A (en) * 1956-11-19 1962-05-01 Sunbeam Corp Process of manufacturing electrically heated cooking vessel
NL229257A (fr) * 1957-07-24
US3543249A (en) * 1967-12-19 1970-11-24 Bell Telephone Labor Inc High permeability magnetic film structure
US3938018A (en) * 1974-09-16 1976-02-10 Dahl Ernest A Induction charging system
JPS56157013A (en) * 1980-05-06 1981-12-04 Mitsubishi Electric Corp Magnetic thin tape laminated core plate and induction machine using this plate
GB8305303D0 (en) * 1983-02-25 1983-03-30 Picker Int Ltd Magnets
US4506248A (en) * 1983-09-19 1985-03-19 Electric Power Research Institute, Inc. Stacked amorphous metal core
US4800328A (en) * 1986-07-18 1989-01-24 Inductran Inc. Inductive power coupling with constant voltage output
US4709471A (en) * 1986-08-15 1987-12-01 Westinghouse Electric Corp. Method of making a magnetic core
JPH02123710A (ja) * 1988-11-02 1990-05-11 Toshiba Corp 磁心およびその製造方法
KR100459839B1 (ko) * 1995-08-22 2005-02-07 미쓰비시 마테리알 가부시키가이샤 트랜스폰더용안테나및트랜스폰더
DE19536267A1 (de) * 1995-09-28 1997-04-03 Siemens Matsushita Components Induktives elektrisches Bauteil
DE19843415A1 (de) * 1998-09-22 2000-03-23 Philips Corp Intellectual Pty Induktives Bauelement mit einem Stabkern
DE29817865U1 (de) * 1998-10-06 2000-02-10 Erich Grau Gmbh Stanzwerk Fuer Stabförmiges Blechpaket für elektrische Spulen
GB2361110A (en) * 2000-04-03 2001-10-10 Abb Ab An induction device
JP3711026B2 (ja) * 2000-07-17 2005-10-26 株式会社ハネックス Ｒｆｉｄタグの設置構造及びｒｆｉｄタグの設置方法及びｒｆｉｄタグの通信方法
DE10132716A1 (de) * 2001-07-05 2003-01-16 Abb T & D Tech Ltd Verfahren zur Fertigung einer elektrischen Kernblech-Baugruppe
US7978078B2 (en) * 2001-12-21 2011-07-12 Sensormatic Electronics, LLC Magnetic core transceiver for electronic article surveillance marker detection
GB2399226B (en) * 2002-05-13 2005-06-15 Splashpower Ltd Inductive power transfer system with moving field
WO2003096512A2 (fr) 2002-05-13 2003-11-20 Splashpower Limited Ameliorations relatives au transfert de puissance sans contact
GB2388715B (en) * 2002-05-13 2005-08-03 Splashpower Ltd Improvements relating to the transfer of electromagnetic power
JP3780995B2 (ja) * 2002-10-03 2006-05-31 カシオ計算機株式会社 アンテナ及びアンテナ製造方法
EP1586135A1 (fr) * 2003-01-23 2005-10-19 Vacuumschmelze GmbH & Co. KG Noyau d'antenne
US7209090B2 (en) * 2003-06-16 2007-04-24 Sensormatic Electronics Corporation High efficiency core antenna and construction method

Also Published As

Publication number Publication date
ATE556418T1 (de) 2012-05-15
WO2006102972A1 (fr) 2006-10-05
US7782169B2 (en) 2010-08-24
US20080074220A1 (en) 2008-03-27
DE102005015006A1 (de) 2006-10-05
EP1864303A1 (fr) 2007-12-12
DE102005015006B4 (de) 2013-12-05

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