Magnetic-field-sensitive assembly, inductive component, circuit board having an inductive component, and use of a magnetic-field-sensitive assembly

Abstract

The invention relates to a magnetic-field-sensitive assembly, comprising: - at least a first magnetic-field-sensitive component, a second magnetic-field-sensitive component and a coupling magnet element arranged in a housing; - wherein each magnetic-field-sensitive component and the coupling magnet element have an axial extent and a cutout in the direction of the axial extent; - wherein the housing has at least a first passage and a second passage; - wherein the coupling magnet element surrounds the at least two passages of the housing; - wherein a first magnetic-field-sensitive component surrounds the first passage of the housing; and - wherein a second magnetic-field-sensitive component surrounds the second passage of the housing.

Description

[0001] Magnetic field sensitive assembly, inductive component, circuit board with inductive component, use of a magnetic field sensitive assembly

[0002] The invention relates to a magnetic field sensitive assembly, an inductive component, a circuit board and the use of a magnetic field sensitive assembly.

[0003] Inductive components, in particular chokes, are used for a variety of electronic and / or electrical applications, preferably for limiting currents in electrical lines, for temporarily storing energy in the form of its magnetic field, for impedance matching and / or for filtering an electronic and / or electrical signal.

[0004] When using an inductive component as a suppression choke, direct current and low-frequency currents should not be influenced or only slightly influenced by the choke, while high-frequency alternating currents should be effectively reduced by utilizing the impedance of the inductance.

[0005] Particularly for applications with high currents, due to the performance limits of circuit breakers in rectifiers and / or inverters, it can be advantageous to first divide a current between several conductors connected in parallel and then, after rectification and / or inversion, to bring them together again at one or more summing points. This makes it easier to pass the current on to an electrical device that is in a functional connection. In such applications, it is advantageous on the one hand to harmonize the currents with one another before summing them and, on the other hand, to reduce or prevent the transmission of harmonics, in particular load-induced harmonics and / or harmonics induced by the rectifier and / or inverter, to the supply network.

[0006] Particularly for mobile applications and / or other space- and cost-sensitive applications, there is a desire to design the required functions in the most space-saving, cost-effective, and robust way possible. Furthermore, a good filter effect for high-frequency interference currents, a temperature that is as constant as possible, and good adaptability to the intended application are desirable.

[0007] The invention is based on the object of providing an improvement or an alternative to the prior art.

[0008] According to a first aspect of the invention, the object is achieved by a magnetic field sensitive assembly, comprising: at least a first magnetic field sensitive component, a second magnetic field sensitive component and a coupling magnet element arranged in a housing; wherein each magnetic field sensitive component and the coupling magnet element each have an axial extension and a recess in the direction of the axial extension; wherein the housing has at least a first penetration and a second penetration; wherein the coupling magnet element comprises the at least two penetrations of the housing; wherein a first magnetic field sensitive component comprises the first penetration of the housing; and wherein a second magnetic field sensitive component comprises the second penetration of the housing.

[0009] The following term is explained in this regard:

[0010] First of all, it should be expressly pointed out that in the context of this patent application, indefinite articles and numerical expressions such as "one", "two", etc. are generally to be understood as "at least" expressions, i.e. as "at least one...", "at least two...", etc., unless it is expressly clear from the respective context or it is obvious or technically necessary for the person skilled in the art that only "exactly one...", "exactly two...", etc. can be meant.

[0011] In the context of this patent application, the expression "in particular" should always be understood as introducing an optional, preferred feature. The expression should not be understood as "and indeed" or "namely".

[0012] A "magnetic field-sensitive component" is understood to be a component, in particular a ferromagnetic component, which reacts to a magnetic field by changing at least one state variable of the component. A magnetic field-sensitive component can be used, among other things, together with electrically conductive conductors to produce an inductive component that can be used for electrical and / or electronic applications.

[0013] In the context of this description, a magnetic field sensitive component is understood to mean in particular a first magnetic field sensitive component and / or a second magnetic field sensitive component and / or a third magnetic field sensitive component and / or a fourth magnetic field sensitive component and / or an n-th magnetic field sensitive component.

[0014] A magnetic field sensitive component can be designed to be in an operative connection with a conductor, in particular a conductor section and / or with a winding.

[0015] The magnetic-field-sensitive component preferably has the shape of a toroidal core. In particular, the magnetic-field-sensitive component designed in this way can influence a stray field of a nearby component.

[0016] The outer contour of the magnetic field sensitive component and / or the inner contour of the magnetic field sensitive component can be formed as an oval, in particular as an ellipse or as a circle.

[0017] The magnetic-field-sensitive component can have the shape of a discontinuous toroidal core. In other words, the magnetic-field-sensitive component can have an air gap at at least one location. In other words, the magnetic-field-sensitive component can have the shape of a "C."

[0018] The outer contour and / or the inner contour of the magnetic-field-sensitive component can be U-shaped, C-shaped, rectangle-shaped, or interrupted rectangle-shaped, thereby achieving a particularly advantageous stray field of the magnetic-field-sensitive component. In particular, the magnetic-field-sensitive component designed in this way can advantageously influence a stray field of a nearby component.

[0019] The magnetic field-sensitive component can have the shape of any desired body. A "recess" is understood to mean a free cross-sectional area formed in the interior of the magnetic field-sensitive component. The recess can extend in the direction of the axial extent of the magnetic field-sensitive component. In particular, the recess can extend from an outer surface of the magnetic field-sensitive component in the direction of the axial extent of the magnetic field-sensitive component to the opposite outer surface of the magnetic field-sensitive component and can thus, in other words, form a penetration of the magnetic field-sensitive component. As a result, a designated electrical conductor can protrude through the recess from one outer surface of the magnetic field-sensitive component to the opposite side of the magnetic field-sensitive component.In other words, a designated electrical conductor can penetrate a magnetic field sensitive component through the recess.

[0020] A coupling magnet element and / or a magnetic field sensitive component can form a recess such that it encompasses the recess in a C-shape and / or on one side.

[0021] A coupling magnet element and / or a magnetic field-sensitive component can form a recess over two regions arranged correspondingly to one another, wherein the regions arranged correspondingly to one another can be arranged parallel to one another, wherein the regions arranged correspondingly to one another extend predominantly in their longitudinal direction. Preferably, a coupling magnet element and / or a magnetic field-sensitive component comprising a recess is understood to mean an arrangement of two regions of the coupling magnet element and / or of two regions of the magnetic field-sensitive component which are not directly connected to one another and are arranged predominantly parallel to one another and at a distance from one another. In this case, the recess is located between the two regions.

[0022] The recess may be formed as a through opening.

[0023] A "through-opening" is understood to mean a free cross-section formed in the interior region of the magnetic-field-sensitive component. Preferably, the through-opening extends in the direction of an axial extent of the magnetic-field-sensitive component.

[0024] A "coupling magnet element" can have at least one magnetic field-sensitive component and / or be designed as a magnetic field-sensitive component. A coupling magnet element can be designed to be operatively connected to at least two conductors, in particular at least two conductor sections and / or to at least two windings.

[0025] A coupling magnet element can be wound from multiple layers of a magnetic tape. A magnetic tape is understood to be a thin tape made of a magnetic material, in particular a soft magnetic material, in particular a magnetic glass, in particular a nanocrystalline glass having a nanocrystalline structure, compared to the width and length of the magnetic tape.

[0026] A “housing” is understood to mean a component which electrically and / or electronically insulates at least the first magnetic field-sensitive component and / or the second magnetic field-sensitive component and / or the nth magnetic field-sensitive component and / or the coupling magnetic element from its surroundings. Furthermore, the housing can be designed to accommodate at least the first magnetic field-sensitive component and / or the second magnetic field-sensitive component and / or the nth magnetic field-sensitive component and / or the coupling magnetic element and to enable a relative arrangement of the accommodated components to one another. In other words, the housing can determine the relative position of the first magnetic field-sensitive component and / or the second magnetic field-sensitive component and / or the coupling magnetic element.

[0027] A "penetration" of the housing is understood to mean a free cross-section extending through the housing. The penetration can have an oval cross-section, preferably an elliptical or circular cross-section or any other cross-section. The penetration can penetrate the housing completely. In other words, a designated electrical conductor can penetrate the housing through the penetration. In other words, a designated electrical conductor can protrude through the housing through the penetration.

[0028] The penetration can extend from a first outer surface of the housing through the housing to the same outer surface or to a further outer surface, in particular to a further outer surface opposite the first outer surface.

[0029] The housing may have at least one first penetration and one second penetration. The housing may have three or more penetrations.

[0030] The penetrations can run along parallel axes in the housing. Alternatively, the penetrations can run along skewed axes in the housing. This can achieve an improved electrical insulation effect of the first magnetic-field-sensitive component and / or the second magnetic-field-sensitive component. The penetrations can intersect in the housing and / or run at least partially along a common axis. This allows the housing and thus the magnetic-field-sensitive assembly to be made more compact.

[0031] The penetrations can be designed, at least in sections, as curves with any radii and / or curvatures. This allows a magnetic-field-sensitive assembly to be designed more compactly.

[0032] The housing can be designed as an electrically insulating housing.

[0033] The housing may be made of a non-magnetic material.

[0034] Advantageously, the housing can be formed from a molten plastic powder, in particular from a thermoplastic and / or a thermosetting plastic, or comprise one of the two. This allows the housing to be manufactured with a low weight.

[0035] Advantageously, the housing can be manufactured using an injection molding process and / or a thermoforming process and / or a PUR-RIM process and / or another plastic manufacturing process. This allows the housing to be manufactured in a single production step.

[0036] Again advantageously, the housing can be manufactured using an injection molding process and / or a thermoforming process and / or a PURRIM process and / or another plastic manufacturing process such that the first magnetic field-sensitive component and / or the second magnetic field-sensitive component and / or the nth magnetic field-sensitive component and / or the coupling magnet element is enclosed by a plastic during production. In particular, the housing can be manufactured by overmolding the first magnetic field-sensitive component and / or the second magnetic field-sensitive component and / or the coupling magnet element in an injection molding process. This allows the magnetic field-sensitive assembly to be manufactured even more quickly and cost-effectively.

[0037] Alternatively or additionally, the housing can be formed from or comprise an epoxy resin. In particular, the housing can be manufactured by encapsulating the first magnetic-field-sensitive component and / or the second magnetic-field-sensitive component and / or the coupling magnet element in a plastic casting process. This allows the magnetic-field-sensitive assembly to be manufactured even more quickly and cost-effectively.

[0038] Alternatively or additionally, a housing can be manufactured using a spraying process and / or a dipping process and / or a coating process.

[0039] The housing can at least partially enclose, in particular completely enclose, the first magnetic-field-sensitive component and / or the second magnetic-field-sensitive component and / or the nth magnetic-field-sensitive component and / or the coupling magnetic element. This improves the electrical insulation of the magnetic-field-sensitive assembly.

[0040] The housing can be designed in at least two parts; in particular, the housing can have at least a lower part and an upper part. The lower part and the upper part can be connected to one another by means of connecting devices, in particular connected to one another in such a way that the first magnetic-field-sensitive component and / or the second magnetic-field-sensitive component and / or the nth magnetic-field-sensitive component and / or the coupling magnet element are at least partially enclosed by the housing, preferably completely enclosed.

[0041] The lower part and / or the upper part of the two-part housing can also be called a trough.

[0042] Alternatively or additionally, the housing can be designed in three parts, in particular four parts or more parts.

[0043] The housing can in particular be designed such that the first magnetic field sensitive component and / or the second magnetic field sensitive component and / or the n-th magnetic field sensitive component and / or the coupling magnet element can be inserted into a multi-part open housing and / or removed from the multi-part open housing.

[0044] Alternatively, the housing may be formed monolithically from one part.

[0045] The housing can have a temperature resistance of greater than or equal to 120 ° C, preferably a temperature resistance of greater than or equal to 150 ° C and particularly preferably a temperature resistance of greater than or equal to 180 ° C.

[0046] The first magnetic field sensitive component can "encompass" the first penetration of the housing. In other words, the recess of the first magnetic field sensitive component can at least partially cover the projection of the first penetration of the housing in the direction of the first penetration. In particular, the cross-sectional area of ​​the recess of the first magnetic field sensitive component can at least partially cover, in particular completely cover, the cross-sectional area of ​​the first penetration of the housing projected in the direction of the first penetration of the housing. In other words, a designated electrical conductor can be guided through the first penetration and the recess of the first magnetic field sensitive component.

[0047] Advantageously, the axis of the recess of the first magnetic-field-sensitive component can run, at least in sections, coaxially with the axis of the first penetration of the housing. This further simplifies the routing of a designated electrical conductor through the recess of the first magnetic-field-sensitive component and through the first penetration of the housing.

[0048] The second magnetic field sensitive component can "encompass" the second penetration of the housing. In other words, the recess of the second magnetic field sensitive component can at least partially cover the projection of the second penetration of the housing in the direction of the first penetration. In particular, the cross-sectional area of ​​the recess of the second magnetic field sensitive component can at least partially cover, in particular completely cover, the cross-sectional area of ​​the second penetration of the housing projected in the direction of the first penetration of the housing. In other words, a designated electrical conductor can be guided through the second penetration and the recess of the second magnetic field sensitive component.

[0049] Advantageously, the axis of the recess of the second magnetic field-sensitive component can run at least partially coaxially with the axis of the second penetration of the housing. This makes it even easier to guide a designated electrical conductor through the recess of the second magnetic field-sensitive component and through the second penetration of the housing. The coupling magnet element can "encompass" the at least two penetrations of the housing, in particular the first penetration of the housing and the second penetration of the housing. In other words, the recess of the coupling magnet element can at least partially cover the projection of the first penetration of the housing in the direction of the first penetration and the projection of the second penetration of the housing in the direction of the first penetration.In particular, the cross-sectional area of ​​the recess of the coupling element can at least partially cover the cross-sectional area of ​​the first penetration and the cross-sectional area of ​​the second penetration.

[0050] Advantageously, the axial extension of the magnetic field sensitive components and / or the axial extension of the coupling magnet element can extend in the direction of mutually parallel axes.

[0051] This makes it easier to guide a designated electrical conductor or several designated electrical conductors through the penetrations of the housing and through the recesses of the magnetic field-sensitive components and / or the coupling magnet element.

[0052] Advantageously, the axial extension of the magnetic-field-sensitive components and / or the axial extension of the coupling magnet element can run along parallel axes, wherein the parallel axes can lie in a common plane. This allows the magnetic-field-sensitive assembly to be designed more compactly.

[0053] Optionally, the first magnetic-field-sensitive component and / or the second magnetic-field-sensitive component and / or the nth magnetic-field-sensitive component and / or the coupling magnetic element can be arranged at least partially in one plane. This allows a designated electrical conductor, in particular a plurality of designated electrical conductors, to be guided more easily through the penetrations of the housing and through the recesses of the magnetic-field-sensitive components and / or the coupling magnetic element.

[0054] Advantageously, the first magnetic-field-sensitive component and / or the second magnetic-field-sensitive component and / or the nth magnetic-field-sensitive component and / or the coupling magnetic element can have a common plane that is orthogonal to the axes of the axial extension of the magnetic-field-sensitive components and the axis of the axial extension of the coupling magnetic element. This further simplifies the routing of a designated electrical conductor, in particular a plurality of designated electrical conductors, through the penetrations of the housing and through the recesses of the magnetic-field-sensitive components and / or the coupling magnetic element.

[0055] Advantageously, the first magnetic field sensitive component can be arranged at least indirectly in contact with the second magnetic field sensitive component, preferably arranged directly in contact with the second magnetic field sensitive component.

[0056] This allows the magnetic-field-sensitive assembly to be made more compact. Furthermore, the stray field of the magnetic-field-sensitive assembly can be precisely adjusted, particularly advantageously increased.

[0057] Advantageously, the first magnetic-field-sensitive component can be arranged so as to be at least indirectly electrically conductively connected to the second magnetic-field-sensitive component, preferably so as to be directly electrically conductively connected to the second magnetic-field-sensitive component. This allows a stray field of the magnetic-field-sensitive assembly to be set even more precisely; in particular, this can ensure that the stray fields of nearby components influence each other in a particularly advantageous manner. This can preferably ensure that differential mode interference can be advantageously influenced by the first magnetic-field-sensitive component and the second magnetic-field-sensitive component.

[0058] The coupling magnet element can expediently be arranged so as to be in direct or indirect contact with the first magnetic field-sensitive component and / or so as to be in direct or indirect contact with the second magnetic field-sensitive component.

[0059] This allows an additional cooling effect to be achieved by heat transfer from the first magnetic-field-sensitive component and / or the second magnetic-field-sensitive component to the coupling magnetic element. This allows the magnetic-field-sensitive assembly to be made more compact. Furthermore, a stray field of the magnetic-field-sensitive assembly can be adjusted in a defined manner.

[0060] Advantageously, the coupling magnet element can be arranged so as to be electrically conductively connected directly or indirectly to the first magnetic-field-sensitive component and / or directly or indirectly to the second magnetic-field-sensitive component. This allows a stray field of the magnetic-field-sensitive assembly to be adjusted even more precisely, and in particular, advantageously increased.

[0061] Optionally, the first magnetic field sensitive component and / or the second magnetic field sensitive component and / or the n-th magnetic field sensitive component can be arranged within the recess of the coupling magnet element, preferably arranged next to one another in the recess of the coupling magnet element.

[0062] This allows the magnetic-field-sensitive assembly to be made even more compact. Furthermore, the magnetic-field-sensitive components and the coupling magnet element can be arranged with improved contact to one another.

[0063] Advantageously, the first magnetic-field-sensitive component and / or the second magnetic-field-sensitive component and / or the nth magnetic-field-sensitive component can be arranged entirely within the recess of the coupling magnetic element. This allows an additional cooling effect to be achieved through heat conduction from the first magnetic-field-sensitive component and / or from the second magnetic-field-sensitive component to the coupling magnetic element. This allows the magnetic-field-sensitive components and the coupling magnetic element to be made smaller while maintaining the same power consumption, thus making the magnetic-field-sensitive assembly even more compact.

[0064] According to a preferred embodiment, the first magnetic field-sensitive component and / or the second magnetic field-sensitive component and / or the n-th magnetic field-sensitive component can have a relative permeability of greater than or equal to 10, preferably a relative permeability of greater than or equal to 50, further preferably a relative permeability of greater than or equal to 100 and particularly preferably a relative permeability of greater than or equal to 300. Advantageously, the first magnetic field-sensitive component and / or the second magnetic field-sensitive component and / or the n-th magnetic field-sensitive component can have a relative permeability of greater than or equal to 500, preferably a relative permeability of greater than or equal to 1,000, further preferably a relative permeability of greater than or equal to 1,500 and particularly preferably a relative permeability of greater than or equal to 2,000.

[0065] This allows the magnetic field sensitive assembly to react more sensitively to changes in the magnetic fields of the first magnetic field sensitive component and / or the second magnetic field sensitive component.

[0066] Optionally, the first magnetic field-sensitive component and / or the second magnetic field-sensitive component and / or the n-th magnetic field-sensitive component can have a relative permeability of less than or equal to 5,000, preferably a relative permeability of less than or equal to 3,500, furthermore preferably a relative permeability of less than or equal to 2,000 and particularly preferably a relative permeability of less than or equal to 1,500. Preferably, the first magnetic field-sensitive component and / or the second magnetic field-sensitive component and / or the n-th magnetic field-sensitive component can have a relative permeability of less than or equal to 1,000, preferably a relative permeability of less than or equal to 500, furthermore preferably a relative permeability of less than or equal to 300 and particularly preferably a relative permeability of less than or equal to 100.

[0067] Advantageously, the first magnetic-field-sensitive component and / or the second magnetic-field-sensitive component and / or the nth magnetic-field-sensitive component can have a magnetic saturation flux density of greater than or equal to 1 T, preferably greater than or equal to 1.2 T, and particularly preferably greater than or equal to 1.4 T. This allows a particularly high amount of electrical energy to be stored in the magnetic flux of the first magnetic-field-sensitive component and the second magnetic-field-sensitive component. This allows the power density of the magnetic-field-sensitive assembly to be increased.

[0068] Advantageously, the first magnetic field-sensitive component and / or the second magnetic field-sensitive component and / or the n-th magnetic field-sensitive component can have a coercive field strength of less than or equal to 10 A / m, preferably a coercive field strength of less than or equal to 5 A / m and particularly preferably a coercive field strength of less than or equal to 3 A / m. This results in reduced heat loss due to a changing magnetic field in the first magnetic field-sensitive component and / or the second magnetic field-sensitive component. As a result, the first magnetic field-sensitive component and / or the second magnetic field-sensitive component and / or the n-th magnetic field-sensitive component can be made even smaller while maintaining the same power consumption, thus further increasing the power density of the magnetic field-sensitive assembly.

[0069] The coupling magnet element can expediently have a relative permeability of greater than or equal to 1,000, preferably a relative permeability of greater than or equal to 5,000, furthermore preferably a relative permeability of greater than or equal to 10,000 and particularly preferably a relative permeability of greater than or equal to 20,000. Furthermore expediently, the coupling magnet element can have a relative permeability of greater than or equal to 30,000, preferably a relative permeability of greater than or equal to 45,000, furthermore preferably a relative permeability of greater than or equal to 60,000 and particularly preferably a relative permeability of greater than or equal to 75,000.

[0070] This allows the magnetic field sensitive assembly to react more sensitively to changes in the magnetic fields of the coupling magnet element, in particular high frequency interference currents induced on the load side or the mains side can be compensated more effectively.

[0071] According to an optional embodiment, the coupling magnet element can have a relative permeability of less than or equal to 150,000, preferably a relative permeability of less than or equal to 100,000, furthermore preferably a relative permeability of less than or equal to 90,000 and particularly preferably a relative permeability of less than or equal to 75,000. Furthermore expediently, the coupling magnet element can have a relative permeability of less than or equal to 60,000, preferably a relative permeability of less than or equal to 45,000, furthermore preferably a relative permeability of less than or equal to 30,000 and particularly preferably a relative permeability of less than or equal to 20,000.

[0072] Advantageously, the coupling magnet element can have a magnetic saturation flux density of greater than or equal to 1 T, preferably greater than or equal to 1.2 T, and particularly preferably greater than or equal to 1.4 T. This allows a particularly high amount of electrical energy to be stored in the magnetic flux of the coupling magnet element. This allows the power density of the magnetic field-sensitive assembly to be increased.

[0073] Advantageously, the coupling magnet element can have a coercive field strength of less than or equal to 10 A / m, preferably a coercive field strength of less than or equal to 5 A / m and particularly preferably a coercive field strength of less than or equal to 3 A / m. This results in reduced heat loss due to a changing magnetic field in the coupling magnet element. As a result, the coupling magnet element can be made even smaller while maintaining the same power consumption and thus the power density of the magnetic field-sensitive assembly can be increased even further. The coupling magnet element and / or the first magnetic field-sensitive component and / or the second magnetic field-sensitive component and / or the nth magnetic field-sensitive component can expediently comprise a soft magnetic material, in particular a metallic glass, preferably having a nanocrystalline structure.

[0074] Furthermore, the coupling magnet element can be wound from a magnetic strip comprising a soft magnetic material, in particular comprising a metallic glass, preferably comprising a metallic glass with a nanocrystalline structure.

[0075] The coupling magnet element and / or the first magnetic field sensitive component and / or the second magnetic field sensitive component and / or the n-th magnetic field sensitive component can further comprise particles of a soft magnetic material or consist of particles of a soft magnetic material, in particular particles of a metallic glass, preferably particles of a metallic glass with a nanocrystalline structure.

[0076] The following terms should first be explained:

[0077] A "particle" is understood to be a body which is small compared to the magnetic field-sensitive component. Preferably, a particle is understood to be a body which has an extension in a range between 3 pm and 10,000 pm in every spatial direction.

[0078] Among other things, a coupling magnetic element and / or a first magnetic-field-sensitive component and / or a second magnetic-field-sensitive component is proposed, which comprises particles of a soft magnetic material. The magnetic-field-sensitive component is preferably formed using the particles of the soft magnetic material.

[0079] An average particle expediently has, where an average particle means an average particle based on the total number of particles, an extension of greater than or equal to 3 pm, preferably an extension of greater than or equal to 10 pm, furthermore preferably an extension of greater than or equal to 30 pm and particularly preferably an extension of greater than or equal to 100 pm. An average particle expediently has an extension of greater than or equal to 200 pm, preferably an extension of greater than or equal to 300 pm, furthermore preferably an extension of greater than or equal to 500 pm and particularly preferably an extension of greater than or equal to 1,000 pm.

[0080] Optionally, an average particle has an extension of less than or equal to 10,000 pm, preferably an extension of less than or equal to 5,000 pm, furthermore preferably an extension of less than or equal to 2,500 pm and particularly preferably an extension of less than or equal to 1,000 pm. Further optionally, an average particle has an extension of less than or equal to 500 pm, preferably an extension of less than or equal to 300 pm, furthermore preferably an extension of less than or equal to 200 pm and particularly preferably an extension of less than or equal to 100 pm.

[0081] By extending an average particle, the permeability of the coupling magnetic element and / or of the first magnetic-field-sensitive component and / or of the second magnetic-field-sensitive component and / or of the nth magnetic-field-sensitive component can be advantageously varied and / or adjusted. For processing the particles of a soft magnetic material into a magnetic-field-sensitive component, a powder metallurgical process is preferably considered, in particular the sintering of a magnetic-field-sensitive component and / or a coupling magnetic element from the particles of the soft magnetic material.

[0082] A "soft magnetic material" is a material that can be easily magnetized in a magnetic field. A soft magnetic material preferably has a coercive field strength of less than or equal to 1,000 A / m.

[0083] Preferably, a soft magnetic material, in particular an amorphous soft magnetic material, preferably a metallic glass, comprises an alloy comprising iron, nickel and / or cobalt.

[0084] A "metallic glass" is understood to be a metal-based alloy of a material which, at the atomic level, does not have a crystalline but rather an amorphous structure and yet still exhibits metallic conductivity as a property. Preferably, a metallic glass can contain non-metallic alloy components in addition to metallic alloy components.

[0085] The amorphous atomic arrangement, which is very unusual for metals, advantageously enables special physical properties. In particular, the use of metallic glasses can advantageously reduce the coercive field strength of the magnetic-field-sensitive component and / or advantageously increase the permeability.

[0086] Preferably, a soft magnetic material can have the following atomic composition:

[0087] [ Fei-aNia J ioo-xyza-ß-Y Cu x S i y B z NboM' ßM"y with a < 0.3, 0.6 < x < 1.5, 10 < y < 17, 5 < z < 14, 2 < a < 6, ß < 7, y < 8, where M' is at least one of the elements V, Cr, Co,

[0088] Al and Zn, where M" is at least one of the elements C, Ge, P, Ga, Sb, In and Be.

[0089] Furthermore, a soft magnetic material can preferably comprise 73.5 wt% iron and / or 1 wt% copper and / or 3 wt% niobium and / or 13.5 wt% silicon and / or 9 wt% boron. A soft magnetic material can expediently comprise 74.5 wt% iron and copper, wherein the copper content is less than or equal to 1 wt%.

[0090] Advantageously, a relative permeability of the coupling magnet element can be greater by a factor of greater than or equal to 1.1 than a relative permeability of the first magnetic field-sensitive component and / or a relative permeability of the second magnetic field-sensitive component, in particular by a factor of greater than or equal to 10, preferably by a factor of greater than or equal to 100 and particularly preferably by a factor of greater than or equal to 1,000.

[0091] A magnetic field-sensitive module designed in this way can react particularly quickly to high-frequency alternating currents and thus compensate even better for interference currents induced on the load side and / or the mains side.

[0092] The magnetic field sensitive assembly can expediently comprise three magnetic field sensitive components, in particular four magnetic field sensitive components, preferably five or more magnetic field sensitive components.

[0093] This allows load-side and / or mains-induced interference currents in three, preferably four, and preferably five or more electrical conductors to be compensated by a magnetic-field-sensitive assembly. This allows the power density of the magnetic-field-sensitive assembly to be further increased.

[0094] The housing can preferably have three penetrations corresponding to the number of magnetic-field-sensitive components, preferably four penetrations, and preferably five or more penetrations. Advantageously, the housing can have a number of penetrations that corresponds to the number of magnetic-field-sensitive components of the magnetic-field-sensitive assembly. This allows an improved electrical and magnetic insulation effect of the housing to be achieved.

[0095] According to a second aspect of the invention, the object is achieved by an inductive component having a magnetic field sensitive assembly according to the first aspect of the invention, wherein the inductive component has at least a first electrically conductive conductor and a second electrically conductive conductor; wherein the first electrically conductive conductor is designed to form a winding related to the coupling magnet element and a winding related to the first magnetic field sensitive component; wherein the second electrically conductive conductor is designed to form a winding related to the coupling magnet element and a winding related to the second magnetic field sensitive component.

[0096] It is understood that the advantages of a magnetic field sensitive assembly according to the first aspect of the invention, as described above, extend directly to an inductive component comprising a magnetic field sensitive assembly according to the first aspect of the invention.

[0097] The following definition should be used: An “electrically conductive conductor” can be understood as a metal wire, in particular a copper wire or an aluminum wire or the like.

[0098] Advantageously, the at least one first electrically conductive conductor and the first magnetic-field-sensitive component and the coupling magnet element are in a fixed relative position to one another. In this case, an electrical current flowing through the at least one first electrical conductor can induce a magnetic field around the first electrical conductor, which in turn interacts with the first magnetic-field-sensitive component and the coupling magnet element and can induce a magnetic flux in the first magnetic-field-sensitive component and the coupling magnet element.

[0099] Advantageously, the at least one second electrically conductive conductor and the second magnetic-field-sensitive component and the coupling magnet element are in a fixed relative position to one another. In this case, an electric current flowing through the at least one second electrical conductor can induce a magnetic field around the second electrical conductor, which in turn interacts with the second magnetic-field-sensitive component and the coupling magnet element and can induce a magnetic flux in the second magnetic-field-sensitive component and the coupling magnet element.

[0100] The first electrically conductive conductor and / or the second electrically conductive conductor can expediently be designed as electrically conductive conductor pieces, wherein the first electrically conductive conductor piece less than completely encloses the first magnetic-field-sensitive component and the coupling magnet element; and the second electrically conductive conductor piece less than completely encloses the second magnetic-field-sensitive component and the coupling magnet element. A "conductor piece" is understood to mean an electrically conductive conductor which has two "conductor section ends" in each case.

[0101] A conductor piece can be designed in one piece, whereby the dimensional stability of the conductor piece can be increased compared to a conductor piece having a plurality of filaments.

[0102] A conductor section can have different cross-sectional shapes, whereby the shape of the cross-section can also change with the length of the conductor section. A conductor section can preferably consist of a round wire. All materials with good electrical conductivity can be considered as material for the conductor section, whereby a conductor section preferably has a high copper content or a high aluminum content, in particular a copper content or a high aluminum content of greater than or equal to 50 wt.%.

[0103] A conductor section may be at least partially covered by an electrically insulating layer.

[0104] A conductor piece which "less than completely encloses" the first magnetic field sensitive component and the coupling element and / or the second magnetic field sensitive component and / or the nth magnetic field sensitive component and the coupling magnet element is understood to mean that the conductor piece is designed in such a way that it cannot completely enclose the first magnetic field sensitive component and the coupling magnet element and / or the second magnetic field sensitive component and the coupling magnet element in any conceivable arrangement.In particular, the conductor piece does not completely enclose the first magnetic field sensitive component and the coupling magnet element and / or the second magnetic field sensitive component and the coupling magnet element in a projection of a direction of travel of the first magnetic field sensitive component and the coupling magnet element and / or the second magnetic field sensitive component and the coupling magnet element and thus does not allow, on its own, a complete winding of a winding around the first magnetic field sensitive component and the coupling element and / or the second magnetic field sensitive component and / or the n-th magnetic field sensitive component and the coupling magnet element.

[0105] Preferably, the first conductor piece and / or the second conductor piece is / are designed in a bow-shaped manner, in particular in a U-shaped bow-shaped manner. A bow-shaped configuration of the conductor pieces allows for a reproducible shaping of a plurality of bows, so that they all have essentially the same shape. This allows, among other things, a particularly precise arrangement of the conductor pieces relative to the first magnetic-field-sensitive component and / or the second magnetic-field-sensitive component and / or the coupling magnetic element to be achieved.

[0106] Advantageously, a conductor piece extends over at least three sides of the first magnetic field sensitive component and / or the second magnetic field sensitive component and / or the coupling magnet element.

[0107] The described bow-shaped design of the conductor pieces can simplify the manufacture of an inductive component, thereby achieving cost advantages in the manufacture of an inductive component.

[0108] In particular, the conductor pieces can be arranged such that the conductor section ends extend in the direction of the axial extent of the first magnetic-field-sensitive component and / or the second magnetic-field-sensitive component and / or the coupling magnetic element. It should be expressly noted that the subject matter of the second aspect can be advantageously combined with the subject matter of the preceding aspect of the invention, both individually and cumulatively in any combination.

[0109] According to a third aspect of the invention, the object is achieved by a circuit board comprising an inductive component according to the second aspect of the invention.

[0110] It is understood that the advantages of an inductive component according to the second aspect of the invention, as described above, extend directly to a circuit board comprising an inductive component according to the second aspect of the invention.

[0111] According to an expedient embodiment, each conductor piece is designed for connection to a circuit board, so that the inductive component can be mounted on a circuit board. Preferably, each conductor piece, in particular each bow-shaped conductor piece, each has conductor section ends arranged parallel to one another, wherein the longitudinal extension directions of the conductor section ends are designed parallel to one another. In particular, the conductor section ends of a conductor piece, preferably of all conductor pieces of an inductive component, are aligned such that they are arranged together in a direction parallel to a normal direction of a circuit board. This makes it possible for them to be inserted together and preferably automatically into corresponding holes in the circuit board and / or into a corresponding receiving component on the circuit board.

[0112] Optionally, a conductor section end has a deburring and / or a chamfer. Furthermore, optionally, a conductor section end has a cross-section tapering at the conductor section end and / or a cross-section tapering toward the conductor section end.

[0113] Advantageously, the conductor section ends of a conductor piece can end in a common plane, the normal direction of which runs parallel to the direction of the axial extension of the first magnetic field sensitive component and / or the second magnetic field sensitive component and / or the coupling magnet element, preferably all ends of all conductor pieces of an inductive component end in this plane.

[0114] A printed circuit board can close one turn of a conductor, preferably several turns of several conductors, in an electrically conductive connection with an inductive component. This eliminates the need for a conductor between the magnetic field-sensitive component and the printed circuit board, allowing the design to be reduced in size when combined with a printed circuit board. This allows the power density to be further increased.

[0115] Particularly for mobile applications and / or other space-sensitive applications, there is a desire to design inductive components that are as small and light as possible. This can be achieved with the design proposed here.

[0116] The conductor pieces can be electrically connected to the circuit board using SMT (surface-mounting technology).

[0117] The circuit board can be designed as a printed circuit, in particular as a PCB (printed circuit board).

[0118] It should be expressly noted that the subject matter of the third aspect can be advantageously combined with the subject matters of the preceding aspects of the invention, either individually or cumulatively in any combination. According to a fourth aspect of the invention, the object is achieved by the use of a magnetic field-sensitive assembly according to the first aspect of the invention as an inductive component.

[0119] It is understood that the advantages of a magnetic field sensitive assembly according to the first aspect of the invention, as described above, extend directly to the use of a magnetic field sensitive assembly according to the first aspect of the invention as an inductive component.

[0120] Advantageously, a magnetic field-sensitive assembly can be used as an inductive component in a power supply system, preferably in a direct current power supply system and particularly preferably in a direct current power supply system for supplying power to a battery-electric storage device.

[0121] A power supply system can be designed as a charger, in particular as a charger for a vehicle having a battery-electric storage device, preferably for a battery-electric vehicle (BEV), again preferably for a battery-electric commercial vehicle.

[0122] Alternatively, a power supply system, in particular a direct current power supply system, can be designed to supply an electrical consumer with power, in particular an electric drive unit, preferably an electric motor, in particular an electric motor of a vehicle.

[0123] A power supply system may include at least one frequency converter.

[0124] It should be expressly pointed out that the subject matter of the fourth aspect can be advantageously combined with the subject matters of the preceding aspects of the invention, both individually or cumulatively in any desired combination.

[0125] Further advantages, details and features of the invention will become apparent from the following exemplary embodiments. These show in detail:

[0126] Figure 1: a schematic sectional view of a first embodiment of a magnetic field sensitive assembly in a plan view;

[0127] Figure 2: a schematic representation of a second embodiment of a magnetic field sensitive assembly in a side view;

[0128] Figure 3: a schematic sectional view of a third embodiment of a magnetic field sensitive assembly in a side view;

[0129] Figure 4: a schematic sectional view of a fourth embodiment of a magnetic field sensitive assembly in a side view;

[0130] Figure 5: a schematic sectional view of a first embodiment of an inductive component comprising a magnetic field-sensitive assembly according to the first aspect of the invention in a side view; and

[0131] Figure 6: a schematic sectional view of a first embodiment of a circuit board comprising an inductive component according to the second aspect of the invention in a plan view.

[0132] In the following description, identical reference symbols designate identical components or identical features, so that a description given with respect to one figure regarding a component also applies to the other figures, thus avoiding repetitive description. Furthermore, individual features described in connection with one embodiment can also be used separately in other embodiments.

[0133] A first embodiment of a magnetic field-sensitive assembly 10 according to Figure 1 essentially consists of at least one housing 100, a coupling magnet element 110, a first magnetic field-sensitive component 120, and a second magnetic field-sensitive component 130. The housing 100 has a first penetration 101 and a second penetration 102. The coupling magnet element 110, the first magnetic field-sensitive component 120, and the second magnetic field-sensitive component 130 each have a recess 111, 121, 131. The first magnetic field-sensitive component 120 comprises the first penetration 101 of the housing 100, and the second magnetic field-sensitive component 130 comprises the second penetration 102 of the housing 100. The coupling magnet element 110 comprises the first penetration 101 and the second penetration 102 of the housing 100.The axial extension of the first magnetic field sensitive component 120 and the second magnetic field sensitive component 130 and the coupling magnetic element 110 runs along parallel axes A and B. The first penetration 101 and the second penetration 102 of the housing 100 extend from a first outer surface 105 of the housing 100 to an opposite outer surface 106 of the housing 100. The housing has an upper part 103 and a lower part 104. The upper part 103 of the housing 100 and the lower part 104 of the housing 100 are connected to one another in such a way that the coupling magnetic element 110, the first magnetic field sensitive component 120 and the second magnetic field sensitive component 130 are completely enclosed by the housing 100. A second embodiment of a magnetic field sensitive assembly 10 according to Figure 2 has a first penetration 101 and a second penetration 102 with a circular cross section.

[0134] A third embodiment of a magnetic-field-sensitive assembly 10 according to Figure 3 has a coupling magnet element 110 which is arranged in contact with a first magnetic-field-sensitive component 120 and a second magnetic-field-sensitive component 130. Furthermore, the first magnetic-field-sensitive component 120 and the second magnetic-field-sensitive component 130 are arranged next to one another in the recess 111 of the coupling magnet element 110.

[0135] A fourth embodiment of a magnetic field sensitive assembly 10 according to Figure 4 additionally has a third magnetic field sensitive component 140 with a recess 141 and a fourth magnetic field sensitive component 150 with a recess 151. The axial extent of the third magnetic field sensitive component 140 runs along the axis C and the axial extent of the fourth magnetic field sensitive component 150 runs along the axis D. The first magnetic field sensitive component 120 is arranged in contact with the fourth magnetic field sensitive component 150. The second magnetic field sensitive component 130 is arranged in contact with the third magnetic field sensitive component 140. The third magnetic field sensitive component 140 is arranged in contact with the fourth magnetic field sensitive component 150.The coupling magnet element 110 is arranged in contact with the first magnetic field-sensitive component 120, the second magnetic field-sensitive component 130, the third magnetic field-sensitive component 140, and the fourth magnetic field-sensitive component 150. The second magnetic field-sensitive component 130, the third magnetic field-sensitive component 140, the fourth magnetic field-sensitive component 150, and the first magnetic field-sensitive component 120 are arranged next to one another in the recess 111 of the coupling magnet element 110 and lie at least partially in a common plane.

[0136] A first embodiment of an inductive component 20 according to Figure 5 has a magnetic field-sensitive assembly 10 according to the first aspect of the invention and a first electrically conductive conductor 201 and a second electrically conductive conductor 202. The first electrically conductive conductor 201 is configured to form a winding related to the coupling magnet element 110 and a winding related to the first magnetic field-sensitive component 120. The second electrically conductive conductor 202 is configured to form a winding related to the coupling magnet element 110 and a winding related to the second magnetic field-sensitive component 130.

[0137] A first embodiment of a circuit board 30 according to Figure 6 essentially comprises an inductive component 20 according to the second aspect of the invention and a first electrically conductive conductor piece 203 and a second electrically conductive conductor piece 204. The first electrically conductive conductor piece 203 less than completely surrounds the coupling magnet element 110 and the first magnetic field-sensitive component 120. The second electrically conductive conductor piece 204 less than completely surrounds the coupling magnet element 110 and the second magnetic field-sensitive component 130. List of Reference Symbols

[0138] 10 Magnetic field sensitive assembly

[0139] 100 housings

[0140] 101 First Penetration

[0141] 102 Second Penetration

[0142] 103 Upper part (of the housing)

[0143] 104 Lower part (of the housing)

[0144] 105 First outer surface (of the housing)

[0145] 106 Second outer surface (of the housing)

[0146] 110 Coupling magnet element

[0147] 111 Recess of the coupling magnet element

[0148] 120 First magnetic field sensitive component

[0149] 121 Recess of the first magnetic field sensitive component

[0150] 130 Second magnetic field sensitive component

[0151] 131 Recess of the second magnetic field sensitive component

[0152] 140 Third magnetic field sensitive component

[0153] 141 Recess of the third magnetic field sensitive component

[0154] 150 Fourth magnetic field sensitive component

[0155] 151 Recess of the fourth magnetic field sensitive component

[0156] 20 Inductive component

[0157] 201 First electrically conductive conductor

[0158] 202 Second electrically conductive conductor

[0159] 203 First electrically conductive conductor piece

[0160] 204 Second electrically conductive conductor piece

[0161] 30 boards

Claims

Patent claims 1. A magnetic field-sensitive assembly (10), comprising: at least a first magnetic field-sensitive component (120), a second magnetic field-sensitive component (130), and a coupling magnet element (110) arranged in a housing (100); wherein each magnetic field-sensitive component (120, 130) and the coupling magnet element (110) each have an axial extension and a recess (111, 121, 131) in the direction of the axial extension; wherein the housing (100) has at least a first penetration (101) and a second penetration (102); wherein the coupling magnet element (110) comprises the at least two penetrations (101, 102) of the housing (100); wherein a first magnetic field-sensitive component (120) comprises the first penetration (101) of the housing (100); and wherein a second magnetic field sensitive component (130) comprises the second penetration (102) of the housing (100).

2. Magnetic field sensitive assembly (10) according to claim 1, characterized in that the axial extension of the magnetic field sensitive components (120, 130) and / or the axial extension of the coupling magnet element (110) runs in the direction of mutually parallel axes.

3. Magnetic field sensitive assembly (10) according to one of the preceding claims, characterized in that the first magnetic field sensitive component (120) and / or the second magnetic field sensitive component (130) and / or the coupling magnet element (110) are arranged at least partially in one plane. Magnetic field-sensitive assembly (10) according to one of the preceding claims, characterized in that the first magnetic field-sensitive component (120) is arranged at least indirectly in contact with the second magnetic field-sensitive component (130), preferably arranged directly in contact with the second magnetic field-sensitive component. Magnetic field-sensitive assembly (10) according to one of the preceding claims, characterized in that the coupling magnet element (110) is arranged indirectly or directly in contact with the first magnetic field-sensitive component (120) and / or indirectly or directly in contact with the second magnetic field-sensitive component (130).Magnetic field-sensitive assembly (10) according to one of the preceding claims, characterized in that the first magnetic field-sensitive component (120) and / or the second magnetic field-sensitive component (130) are arranged within the recess of the coupling magnet element (110), preferably arranged side by side in the recess of the coupling magnet element (110). Magnetic field-sensitive assembly (10) according to one of the preceding claims, characterized in that the first magnetic field-sensitive component (120) and / or the second magnetic field-sensitive component (130) has a relative permeability of greater than or equal to 10, preferably a relative permeability of greater than or equal to 50, and particularly preferably a relative permeability of greater than or equal to 100. Magnetic field-sensitive assembly (10) according to one of the preceding claims, characterized in that the coupling magnetic element (110) has a relative permeability of greater than or equal to 1,000, preferably a relative permeability of greater than or equal to 5,000, and particularly preferably a relative permeability of greater than or equal to 10,000. Magnetic field-sensitive assembly (10) according to one of the preceding claims, characterized in that the coupling magnetic element (110) and / or the first magnetic field-sensitive component (120) and / or the second magnetic field-sensitive component (130) comprises a soft magnetic material, in particular a metallic glass, preferably having a nanocrystalline structure.Magnetic field sensitive assembly (10) according to one of the preceding claims, characterized in that a relative permeability of the coupling magnet element (110) is greater by a factor of greater than or equal to 1.1 than a relative permeability of the first magnetic field sensitive component (120) and / or a relative permeability of the second magnetic field sensitive component (130), in particular by a factor of greater than or equal to 10, preferably by a factor of greater than or equal to 100 and particularly preferably by a factor of greater than or equal to 1000. Magnetic field sensitive assembly (10) according to one of the preceding claims, characterized in that the magnetic field sensitive assembly has three magnetic field sensitive components (120, 130, 140), in particular four magnetic field sensitive components (120, 130, 140, 150), preferably five or more magnetic field sensitive components (120, 130, 140, 150) . Inductive component (20) comprising a magnetic field-sensitive assembly (10) according to one of the preceding claims, wherein the inductive component (20) comprises at least a first electrically conductive conductor (201) and a second electrically conductive conductor (202); wherein the first electrically conductive conductor (201) is configured to form a winding related to the coupling magnet element (110) and a winding related to the first magnetic field-sensitive component (120); wherein the second electrically conductive conductor (202) is configured to form a winding related to the coupling magnet element (110) and a winding related to the second magnetic field-sensitive component (130). Inductive component (20) according to claim 12, characterized in that the first electrically conductive conductor (201) and / or the second electrically conductive conductor (202) are designed as electrically conductive conductor pieces (203, 204), wherein the first electrically conductive conductor piece (203) less than completely surrounds the first magnetic field-sensitive component (120) and the coupling magnet element (110); and the second electrically conductive conductor piece (204) less than completely surrounds the second magnetic field-sensitive component (130) and the coupling magnet element (110). Circuit board (30) comprising an inductive component (20) according to Claim 12 or claim 13. Use of a magnetic field sensitive assembly (10) according to one of claims 1 to 11 as an inductive component (20).

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