Inductive component, method for manufacturing an inductive component, use of an inductive component, and motor vehicle

Abstract

The invention relates to an inductive component comprising: - a magnetic-field-sensitive component comprising a through-opening, the magnetic-field-sensitive component having an axial extent, and - at least one electrically conductive conductor element enclosing the magnetic-field-sensitive component less than completely, in particular at least two conductor elements, four conductor elements, six conductor elements or eight conductor elements, the inductive component being characterised in that the magnetic-field-sensitive component consists of a soft magnetic material and has 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.

Description

[0001] Inductive component, method for producing an inductive component, use of an inductive component and motor vehicle

[0002] The invention relates to an inductive component, a method for producing an inductive component, a use of an inductive component and a motor vehicle.

[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 or for filtering an electronic 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] For applications of an inductive component in which a high current flows through the winding of the inductive component, a high conductor cross-section is required for the cable used to create the winding.

[0006] In the case of windings made of conductors with a high conductor cross-section, the winding forces required for winding the conductors around the magnetic field-sensitive component also increase; these winding forces are supported by the magnetic field-sensitive component or by a housing surrounding the magnetic field-sensitive component during winding.

[0007] Magnetic field sensitive components, in particular magnetic field sensitive components made of a soft magnetic material, are pressure sensitive and can change their properties, in particular deteriorate, under mechanical stress.

[0008] In order to reduce the mechanical stress when winding conductors with a high conductor cross-section, a housing enclosing the magnetic field-sensitive component with a high degree of strength, in particular by means of a high wall thickness of the housing, may be required, which may further increase the minimum dimensions and the price of an inductive component.

[0009] 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. In the case of inductive components used as chokes, a good filter effect for high-frequency interference currents, a temperature of the inductive component that is as constant and low as possible, and good adaptability to the intended application are also desirable.

[0010] The invention is based on the object of providing an improvement or an alternative to the prior art.

[0011] According to a first aspect of the invention, the object is achieved by an inductive component comprising: a magnetic field sensitive component having a through-opening, wherein the magnetic field sensitive component has an axial extension, and at least one electrically conductive conductor piece less than completely enclosing the magnetic field sensitive component, in particular at least two conductor pieces, four conductor pieces, six conductor pieces or eight conductor pieces, wherein the inductive component is characterized in that the magnetic field sensitive component consists of a soft magnetic material and has 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.

[0012] The following term is explained in this regard:

[0013] 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.

[0014] 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".

[0015] An "inductive component" is understood to mean an element which has inductive properties. In particular, an inductive component can be understood to mean an assembly comprising a magnetic field-sensitive component and at least one conductor piece. Preferably, the at least one conductor piece and the magnetic field-sensitive component are in a fixed relative position to one another. In this case, an electric current flowing through the at least one conductor piece can induce a magnetic field around the conductor piece, which in turn interacts with the magnetic field-sensitive component and can induce a magnetic flux in the magnetic field-sensitive component.

[0016] Preferably, the inductive component is configured for automatic assembly on a circuit board. The conductor section ends of the at least one conductor element can be formed in a common direction of extension, so that the conductor section ends can be inserted jointly, preferably in a normal direction of the circuit board, into the circuit board or a component of the circuit board attached to the circuit board.

[0017] A "magnetic field-sensitive component" is understood to mean 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, among other things, be used together with electrical conductors to produce an inductance that can be used for electrical and / or electronic applications.

[0018] The magnetic-field-sensitive component preferably has the shape of a toroidal core, which allows a particularly advantageous, in particular a particularly low, stray field of the magnetic-field-sensitive component to be achieved. This allows the magnetic-field-sensitive component, and thus also the inductive component, to have particularly good electromagnetic compatibility, since a stray field could influence nearby components.

[0019] A toroidal core preferably has an annular structure made from a solid material body, in particular an annular structure made from a solid material body along an azimuthal extension of the toroidal core and / or an extension of the toroidal core along its circumference. The solid material body can be constructed in layers from a soft magnetic material, in particular wound from a soft magnetic material, preferably wound without interruption. The toroidal core can have fewer than one interruption, in particular less than one air gap. The toroidal core is preferably designed so as not to be divisible.

[0020] Preferably, the magnetic field sensitive component and / or a housing surrounding the magnetic field sensitive component has locking hooks which can be inserted into the circuit board or a component of the circuit board fastened to the circuit board during assembly of the circuit board, in particular during automatic assembly of the circuit board, preferably in a normal direction of the circuit board, so that a locking connection can be brought about between the magnetic field sensitive component and the circuit board.

[0021] The magnetic field sensitive component can be constructed in layers from a soft magnetic material, in particular the magnetic field sensitive component can be wound from a soft magnetic material. This allows the eddy current losses of the magnetic field sensitive component to be influenced. Preferably, the eddy current losses can be specifically adjusted via those of the soft magnetic material, whereby the eddy current losses and thus the impedance of the magnetic field sensitive component can be adjusted. In other words, the eddy current losses and the impedance can be adjusted via the strip thicknesses. The impedance of the magnetic field sensitive component can be used to influence and / or adjust the transmission behavior of the magnetic field sensitive component, in particular the attenuation of the magnetic field sensitive component, with respect to high-frequency currents.This makes it possible to ensure that high-frequency currents, in particular high-frequency interference currents, are partially or completely dissipated by the magnetic field-sensitive component.

[0022] Preferably, a magnetic field sensitive component is understood to be a component made of a soft magnetic material.

[0023] 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.

[0024] The term "coercive field strength" refers to the magnetic field strength necessary to completely demagnetize a magnetic field-sensitive component that has previously been charged to the saturation flux density.

[0025] Preferably, a soft magnetic material, in particular an amorphous soft magnetic material, comprises an alloy comprising iron and / or nickel and / or cobalt.

[0026] 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 the "axial extension" of the magnetic-field-sensitive component.

[0027] Particularly preferably, the outer contour of the magnetic field sensitive component is formed as an oval and the inner contour of the magnetic field sensitive component is also formed as an oval with two axes of symmetry.

[0028] The inner contour of the magnetic-field-sensitive component forms the through-opening of the magnetic-field-sensitive component. Preferably, the material thickness of the magnetic-field-sensitive component is largely constant or constant. In the special case in which the magnetic-field-sensitive component is formed as a circle in cross-section and the material thickness of the magnetic-field-sensitive component is constant, the magnetic-field-sensitive component has the geometry of a circular ring in cross-section.

[0029] An "oval" is a plane, rounded, convex figure. An oval includes circles and ellipses as special cases, although an arbitrary oval, in contrast to these, does not need to have an "axis of symmetry". In particular, an oval is a closed, twice continuously differentiable convex curve in the plane.

[0030] If the curve of an oval is arranged mirror-inverted on both sides of an imaginary line, then the oval has one axis of symmetry. If the curve of an oval is arranged mirror-inverted on both sides of two non-coincident imaginary lines, then the oval has "two axes of symmetry". In particular, a circle and an ellipse are each an oval with two axes of symmetry.

[0031] Preferably, the magnetic field sensitive component has a substantially constant axial extent, in particular a constant axial extent.

[0032] According to a particularly advantageous embodiment, the magnetic field sensitive component has a high permeability.

[0033] The "permeability" of a magnetic field-sensitive component is understood to be the magnetization of a material in an external magnetic field. The higher the permeability of a magnetic field-sensitive component, the greater the ratio of magnetic flux density in the magnetic field-sensitive component to the magnetic field strength acting on the magnetic field-sensitive component.

[0034] Thus, a magnetic-field-sensitive component with high permeability results in a comparatively high magnetic flux density within the magnetic-field-sensitive component, even at low magnetic field strengths. Thus, high permeability increases the conversion ratio of the magnetic field, particularly the magnetic field emanating from a conductor section designated for current flow, to the magnetic flux in the magnetic-field-sensitive component, and vice versa.

[0035] It is preferably proposed that the magnetic field-sensitive component has a permeability that is greater than or equal to 35,000 H / m (henry per meter). The magnetic field-sensitive component preferably has a permeability of greater than or equal to 45,000 H / m. The magnetic field-sensitive component particularly preferably has a permeability of greater than or equal to 50,000 H / m. Further preferably, the magnetic field-sensitive component has a permeability of greater than or equal to 60,000 H / m. The magnetic field-sensitive component preferably has a permeability of greater than or equal to 70,000 H / m. The magnetic field-sensitive component particularly preferably has a permeability of greater than or equal to 80,000 H / m. Likewise further preferably, the magnetic field-sensitive component has a permeability of greater than or equal to 90. 000 H / m, preferably the magnetic field sensitive component has a permeability of greater than or equal to 100.000 H / m , particularly preferably the magnetic field sensitive component has a permeability of greater than or equal to 110 000 H / m . Furthermore preferably the magnetic field sensitive component has a permeability of greater than or equal to 120 000 H / m , preferably the magnetic field sensitive component has a permeability of greater than or equal to 130 000 H / m , particularly preferably the magnetic field sensitive component has a permeability of greater than or equal to 140 000 H / m . Preferably the permeability of the magnetic field sensitive component is greater than or equal to 150 000 H / m .

[0036] The permeability values ​​given above apply to a magnetic field oscillating at 50 Hz.

[0037] It should be expressly noted that the above values ​​for the permeability of the magnetic-field-sensitive component are not intended to be understood as sharp limits, but rather should be capable of being exceeded or undercut on an engineering scale without departing from the described aspect of the invention. In simple terms, the values ​​are intended to provide an indication of the magnitude of the permeability of the magnetic-field-sensitive component proposed here.

[0038] A "conductor section" is understood to be an electrical conductor which has two "conductor section ends".

[0039] 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.

[0040] A conductor piece can have different cross-sectional shapes, whereby the shape of the cross-section can also change with the length of the conductor piece. A conductor piece can preferably consist of a round wire. All materials with good electrical conductivity can be considered as material for the conductor piece, whereby a conductor piece 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. %. A conductor piece can be at least partially covered by an electrically insulating layer.

[0041] The cross-section of a conductor section is preferably greater than or equal to 0.5 mm 2 , furthermore preferably greater than or equal to 0.8 mm 2 , preferably greater than or equal to 1.2 mm 2 and particularly preferably greater than or equal to 1.8 mm 2. Preferably, the cross-section of a conductor section is greater than or equal to 2.4 mm 2 , furthermore preferably greater than or equal to 3.1 mm 2 , preferably greater than or equal to 4.9 mm 2 and particularly preferably greater than or equal to 7 .0 mm 2 .

[0042] With a larger cross-section of the conductor section, the current flowing through the conductor section can be increased. The higher current results in a stronger magnetic field emanating from the conductor section, so that a smaller number of conductor sections is required to achieve a defined magnetic flux in the magnetic-field-sensitive component. By using fewer conductor sections, the through-opening of the magnetic-field-sensitive component and thus the size of the inductive component can be reduced.

[0043] However, the above effect is reversed when the diameter of a conductor piece approaches the diameter of the through-opening of the magnetic field-sensitive component. Accordingly, it is proposed that the diameter of a conductor piece be less than or equal to 12 mm, preferably less than or equal to 10 mm, and particularly preferably less than or equal to 8 mm. Furthermore, the diameter of a conductor piece is preferably less than or equal to 6 mm, preferably less than or equal to 5 mm, and particularly preferably less than or equal to 4 mm.

[0044] A conductor section which "less than completely encloses" the magnetic field-sensitive component is understood to mean that the conductor section is designed in such a way that it cannot completely enclose the magnetic field-sensitive component in any conceivable arrangement therewith. In particular, the conductor section does not completely enclose the magnetic field-sensitive component in a projection of a direction of travel of the magnetic field-sensitive component and, taken on its own, does not allow for a complete winding around the magnetic field-sensitive component.

[0045] The conductor piece is preferably designed in a bow shape, in particular a U-shaped bow shape. By designing the conductor pieces in a bow shape, a reproducible shape of a plurality of bows can be achieved, so that they all have essentially the same shape. This makes it possible, among other things, to achieve a particularly precise arrangement of the conductor pieces with respect to the magnetic field-sensitive component and / or a designated circuit board. This also makes it possible to reduce or prevent a stray field of the inductive component.If the inductive component is used as a choke, in particular as a choke for suppressing common-mode interference currents and / or differential-mode interference currents, furthermore in particular high-frequency common-mode interference currents and / or differential-mode interference currents, then a possible particularly precise arrangement of the at least two conductor pieces for this case can ensure that the magnetic fluxes caused by the differential-mode interference currents and / or common-mode interference currents in the magnetic-field-sensitive component cancel each other out and / or add each other up particularly precisely, whereby very good suppression of common-mode interference currents and / or differential-mode interference currents can be achieved. In particular, this can result in particularly low interference with the useful power and / or the useful current.

[0046] Advantageously, a conductor piece extends over three or at least three sides of the magnetic field sensitive component, wherein the three sides are contiguous sides of the magnetic field sensitive component.

[0047] The described bow-shaped design of the conductor pieces also allows the forces occurring during winding to be significantly reduced or eliminated, allowing the inductive component to exhibit particularly high reproducibility of its properties. Furthermore, the production of an inductive component can be simplified, thereby achieving cost advantages in the production of an inductive component.

[0048] By shaping the bow-shaped conductor pieces, in particular the reproducible shape, a smaller design of a magnetic field-sensitive component can be achieved while at the same time maintaining the necessary air and / or creepage distances, in particular a 30% smaller design can be achieved, particularly preferably a 40% smaller design, again preferably a 50% smaller design.

[0049] In other words, the improved reproducibility of a bow-shaped conductor piece can ensure that the inductive component can achieve narrower tolerance field widths, whereby the automatability of the assembly of a circuit board and / or the properties of the inductive component can be designed more precisely.

[0050] To achieve inductive properties, an inductive component has at least one conductor piece.

[0051] So that the inductive component can be used as a choke, in particular as a common-mode choke and / or differential-mode choke, the inductive component in particular has an even number of conductor pieces, so that a current can flow into an electrical system via a first conductor piece or a plurality of first conductor pieces and can flow back out of the system via a second conductor piece or a plurality of second conductor pieces. Preferably, the number of first conductor pieces corresponds to the number of second conductor pieces. In some applications, the inductive component can have a non-even number of conductor pieces.

[0052] Preferably, an inductive component can have at least two conductor pieces, at least four conductor pieces, at least six conductor pieces, at least eight conductor pieces and / or more than eight conductor pieces.

[0053] For a reproducible arrangement and / or automatic handling, each conductor piece can be connected to the magnetic-field-sensitive component, in particular at least indirectly connected to the magnetic-field-sensitive component. Preferably, each conductor piece is connected to the magnetic-field-sensitive component in an at least indirectly electrically insulated manner.

[0054] In particular, the conductor pieces can be connected to the magnetic field sensitive component in such a way that the conductor section ends extend in the direction of the axial extent of the magnetic field sensitive component.

[0055] 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 or into a corresponding receiving component on the circuit board.

[0056] 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.

[0057] Advantageously, the conductor section ends of a conductor piece can end in a common plane whose normal direction runs parallel to the direction of the axial extension of the magnetic field-sensitive component; preferably, all ends of all conductor pieces of an inductive component end in this plane.

[0058] A circuit board, in conjunction with an inductive component, can close one turn of a conductor, preferably several turns of several conductors. This eliminates the need for a conductor between the magnetic field-sensitive component and the circuit board, allowing the design to be reduced in size when combined with a circuit board.

[0059] Here, an inductive component is proposed which has a magnetic field-sensitive component made of a soft magnetic material, wherein the magnetic field-sensitive component has a coercive field strength of less than or equal to 10 A / m. Preferably, the magnetic field-sensitive component has 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. The above-mentioned values ​​for the coercive field strength apply to a magnetic field oscillating at 50 Hz.

[0060] Especially for mobile applications and / or other space-sensitive applications, there is a desire to be able to design inductive components that are as small and as light as possible.

[0061] Due to the comparatively high permeability of the magnetic field sensitive component proposed here, consisting of a soft magnetic material, it can be achieved that the magnetic field emanating from a current-carrying conductor, in particular the designated current-carrying conductor section, causes a particularly strong magnetic flux in the magnetic field sensitive component and vice versa.

[0062] In other words, at high permeability, the inductive component exhibits a steep transfer characteristic between the magnetic field strength of the magnetic field emanating from the conductor section designated by a current flowing through it and the magnetic flux in the magnetic-field-sensitive component, and vice versa. This transfer characteristic can be achieved by using a magnetic-field-sensitive component consisting of a soft magnetic material.

[0063] The higher the permeability of the magnetic field sensitive component made of a soft magnetic material, the higher the inductance of the inductive component for a given designated current through the conductor piece(s) and a given arrangement of the conductor piece(s). If the permeability of the magnetic field sensitive component is doubled, the number of conductor pieces can be halved for a given designated current through the conductor piece(s) in order to achieve the same inductance. For a given application and thus an at least implicitly given objective for the inductance to be achieved, the high permeability of the magnetic field sensitive component made of a soft magnetic material can reduce the number of conductor pieces required to achieve the inductance compared to a magnetic field sensitive component with a lower permeability.This allows a saving in installation space for the necessary conductor sections, whereby the magnetic field sensitive component can also be made smaller, so that the inductive component as a whole can be made smaller and lighter.

[0064] A further objective, in addition to the smallest and / or lightest possible inductive component, is the desire for particularly energy-efficient operation of an inductive component.

[0065] The less dissipation occurs during the designated energy conversion from a magnetic field caused by a conductor section through which a low-frequency current, in particular a low-frequency current of less than or equal to 200 Hz, flows into a magnetic flux in the magnetic field-sensitive component and vice versa, the more efficient the inductive component is and the less heat is generated in the magnetic field-sensitive component.

[0066] The lower the coercive field strength of the magnetic-field-sensitive component, the lower the hysteresis losses occurring in the magnetic-field-sensitive component and thus the resulting dissipation when a low-frequency current flows through a conductor section of the inductive component. With the coercive field strength of the magnetic-field-sensitive component required here, a particularly energy-efficient inductive component can be achieved. Furthermore, the magnetic-field-sensitive component can be achieved with particularly advantageous thermal stability.

[0067] The magnetic field-sensitive component preferably has a coercive field strength of less than or equal to 2 A / m, preferably a coercive field strength of less than or equal to 1.5 A / m, and particularly preferably a coercive field strength of less than or equal to 1 A / m. Furthermore, the magnetic field-sensitive component preferably has a coercive field strength of less than or equal to 0.5 A / m, preferably a coercive field strength of less than or equal to 0.1 A / m, and particularly preferably a coercive field strength of less than or equal to 0.05 A / m. The above-mentioned values ​​for the coercive field strength apply to a magnetic field oscillating at 50 Hz.

[0068] Furthermore, the magnetic field-sensitive component preferably has a remanence of less than or equal to 0.5 T, preferably 0.4 T, further preferably 0.3 T, again preferably 0.2 T. The magnetic field-sensitive component can furthermore have a remanence of less than or equal to 0.1 T, preferably a remanence of less than or equal to 0.05 T and particularly preferably a remanence of less than or equal to 0.02 T.

[0069] As a result, the dissipation occurring in the magnetic field-sensitive component at low-frequency polarity-changing field strengths, in particular polarity-changing field strengths caused by a low-frequency current of less than or equal to 200 Hz, can be additionally advantageously reduced.

[0070] If a direct current component is superimposed on the low-frequency current flowing through a conductor section of the inductive component, it can be advantageous for the energy efficiency of the inductive component if the magnetic field-sensitive component has a high saturation flux density, in particular a saturation flux density of greater than or equal to 1 T. Preferably, the magnetic field-sensitive component has a saturation flux density of greater than or equal to 1.1 T, preferably a saturation flux density of greater than or equal to 1.2 T and particularly preferably a saturation flux density of greater than or equal to 1.3 T.

[0071] This makes it possible to operate the inductive component in an energy-efficient manner even when there is a superimposed direct current component.

[0072] In the case of inductive components used as chokes, particularly as chokes for damping common-mode interference currents, a good filtering effect for high-frequency common-mode interference currents is also desirable.

[0073] The low-frequency currents flowing through a conductor section predominantly lead to frequency-proportional hysteresis losses in the magnetic field-sensitive component. High-frequency interference currents, on the other hand, predominantly lead to eddy current losses in the magnetic field-sensitive component that are proportional to the square of the frequency. In other words, the transfer behavior and the dissipation in the magnetic field-sensitive component depend on the frequency of the current flowing through a conductor section. These differences in the transfer behavior of the inductive component can be advantageously used to throttle high-frequency alternating currents by utilizing the impedance of the inductive component, even with the particularly low coercive field strength of the magnetic field-sensitive component specified here and thus only slight attenuation for direct current and low-frequency currents.Tests have surprisingly shown that with high permeability values ​​of the magnetic field sensitive component made of a soft magnetic material, it is possible to achieve a situation where the magnetic flux caused by common mode interference currents in a choke with a forward and return line and summed up in the magnetic field sensitive component from the forward and return lines particularly supports the throttling of the same. In other words, tests have shown that the throttling of common mode interference currents in the magnetic field sensitive component proposed here can reach particularly advantageous values ​​despite the low coercive field strength which counteracts the impedance of the inductive component. Furthermore, tests have shown that this tendency can be increased with increasing permeability of the magnetic field sensitive component.Furthermore, tests have shown that the inductive component proposed here can also filter, and in particular reduce, differential mode interference currents.

[0074] A further advantage of the design of the inductive component proposed here is that the inductive component can be manufactured automatically, which saves costs and reduces the error rate.

[0075] Thus, the highly permeable inductive component proposed here makes it possible to achieve a small overall size and thus a lightweight inductive component which, as a result of the low coercive field strength, is particularly energy-efficient and, when used as a choke, enables particularly advantageous throttling of common-mode interference currents to be achieved despite the low coercive field strength which counteracts the impedance of the inductive component. In other words, a particularly small inductive component can be achieved which is particularly energy-efficient and, at the same time, can also be used particularly efficiently as a choke for common-mode interference currents. The inductive component preferably has at least two conductor pieces, the conductor pieces being organized into a first group of conductor pieces and at least one second group of conductor pieces.

[0076] The following term is explained in this regard:

[0077] A "group of conductor pieces" is understood to mean at least one conductor piece that can be arranged on the magnetic field-sensitive component, in particular at least two conductor pieces, preferably at least three conductor pieces, particularly preferably at least four conductor pieces, again preferably more than four conductor pieces.

[0078] The conductor pieces of a group of conductor pieces can be arranged at a distance from one another, in particular at an equidistant distance from one another, in particular at a substantially equidistant distance, in particular at an equidistant distance from one another, wherein the conductor pieces can be arranged on the magnetic-field-sensitive component. Preferably, the conductor pieces can be distributed and / or arranged at an equidistant distance from one another over an extension of the magnetic-field-sensitive component.

[0079] At least two groups of conductor pieces can be distributed and / or arranged symmetrically to one another on the magnetic field-sensitive component, in particular at least three groups. In other words, at least two groups of conductor pieces can be distributed on the magnetic field-sensitive component in such a way that an identical distance is formed between the at least two groups of conductor pieces, in particular a substantially identical distance. The groups of conductor pieces preferably have the same number of conductor pieces. In particular, the groups of conductor pieces each have conductor pieces that correspond to one another.

[0080] In particular, if two groups of conductor pieces are arranged on the magnetic field sensitive component, the inductive component can be used as a choke, so that a current can flow into an electrical system via a first group of conductor pieces and can flow back out of the system via a second group of conductor pieces.

[0081] Advantageously, at least one conductor section is connected at least indirectly to the magnetic field-sensitive component by means of a connecting means.

[0082] A connecting means can be formed at least in sections from an elastic material or comprise an elastic material, in particular an elastic plastic, preferably an elastomer, preferably a thermoplastic elastomer, particularly preferably an elastic PUR material, again preferably a foamed PUR material, again preferably a compressible material.

[0083] Advantageously, at least one conductor piece can be connected indirectly and / or directly by means of one and / or two and / or three and / or more than three connecting means to the magnetic field sensitive component and / or can be arranged relative to the magnetic field sensitive component.

[0084] A conductor section can be connected indirectly and / or directly to the magnetic-field-sensitive component by means of at least one connecting means such that the conductor section can be in a fixed position relative to the magnetic-field-sensitive component, in particular spaced apart from the magnetic-field-sensitive component, in particular spaced apart in the direction of an axial extension direction of the magnetic-field-sensitive component and / or in at least one direction orthogonal to the axial extension direction. Such a distance between a conductor section and the magnetic-field-sensitive component can also be referred to as an air gap.

[0085] A conductor piece can be connected indirectly and / or directly by means of at least one connecting means to the magnetic field-sensitive component in such a way that a frictional connection and / or positive connection can be achieved between the at least one connecting means and the magnetic field-sensitive component. In particular, the frictional connection and / or positive connection between the at least one connecting means and the magnetic field-sensitive component can be so high that the at least one conductor piece can be in a fixed relative position to the magnetic field-sensitive component, in particular during assembly of the inductive component on a designated electrically insulated carrier plate, preferably during automated assembly of the inductive component on a designated electrically insulated carrier plate. This makes it possible to simplify and, at the same time, accelerate assembly of the inductive component.

[0086] A conductor piece can be connected to the magnetic field sensitive component indirectly and / or directly by means of at least one connecting means, in particular an elastic connecting means, further in particular by means of two elastic connecting means, in such a way that a press fit can arise between the conductor piece and the magnetic field sensitive component. In this way, a particularly good and easily assembled connection can be achieved between the conductor piece and the magnetic field sensitive component. A connecting means can be designed differently in its spatial dimensions. In other words, a first connecting means can have at least one spatial extension RI and a second connecting means can have at least one spatial extension R2, where RI can be different from R2.Thus, the relative position of a conductor piece with respect to the magnetic field sensitive component can be adjusted, in particular in a direction along the axial extension direction of the magnetic field sensitive component and / or in a transverse direction to the axial extension direction of the magnetic field sensitive component and / or in a direction orthogonal to the axial extension direction of the magnetic field sensitive component.

[0087] A connecting means can be designed as a hook and / or a locking element, preferably as a locking hook. This allows for further improved form-fitting and thus a further improved connection between the conductor piece and the magnetic field-sensitive component.

[0088] Optionally, a conductor piece can be connected indirectly and / or directly by means of at least one connecting element to a housing at least partially enclosing the magnetic field-sensitive component, in particular in a force-fitting and / or form-fitting manner.

[0089] Optionally, the magnetic field sensitive component has a cooling surface.

[0090] The following term is explained in this regard:

[0091] A "cooling surface" is understood to mean a surface through which a heat flow can flow from one direction into another direction, preferentially to the adjacent surface areas. At least one cooling surface can expediently be arranged on the magnetic field-sensitive component, in particular on the surface of the magnetic field-sensitive component, in particular on a surface in the direction of the axial extension direction of the magnetic field-sensitive component, in particular two or more cooling surfaces, in particular on two or more surfaces.

[0092] Two or more cooling surfaces can expediently be arranged on the magnetic field-sensitive component at a distance from one another, in particular arranged symmetrically distributed with respect to one another, in particular arranged in such a way that an equidistant distance is achieved between the at least two cooling surfaces, in particular a substantially equidistant distance.

[0093] A cooling surface can be arranged between a first group of conductor pieces and a second group of conductor pieces.

[0094] Particularly preferably, the magnetic field sensitive component is designed for connection to a heat sink and / or has a heat sink.

[0095] The following term is explained in this regard:

[0096] A "heat sink" is understood to mean a body that can be contacted or is contacted with the inductive component, which body is designed to dissipate a heat flow from the inductive component, and which has a thermal conductivity that is designed to dissipate a specific heat flow from the inductive component that is greater than the specific heat flow that can be dissipated from the inductive component by convection with respect to a contact surface between the heat sink and the inductive component. The heat sink can be designed to dissipate a heat flow from the magnetic field-sensitive component, in particular by means of a connection between the heat sink and at least one cooling surface of the magnetic field-sensitive component.

[0097] A heat sink can be designed as an active heat sink. An active heat sink can have an actively controllable cooling capacity, which can preferably be adjusted by a volume flow and / or a temperature of a fluid flow interacting with the heat sink. The fluid flow can flow within the heat sink, preferably through cooling channels within the heat sink.

[0098] Alternatively or additionally, a heat sink can be designed as a passive heat sink. A passive heat sink can have a cooling capacity that can depend essentially on the material properties of the heat sink, in particular the thermal conductivity of the heat sink, and / or on ambient conditions, preferably an ambient temperature and / or a temperature of the heat sink and / or a temperature of the magnetic field-sensitive component.

[0099] A heat sink can be formed at least partially from a material with a particularly high thermal conductivity, in particular from a material with X greater than or equal to 10 W / (m*K) and / or X greater than or equal to 20 W / (m*K) and / or X greater than or equal to 50 W / (m*K) and / or X greater than or equal to 100 W / (m*K) and / or X greater than or equal to 150 W / (m*K) and / or X greater than or equal to 200 W / (m*K).

[0100] The at least one cooling surface of the magnetic field sensitive component can preferably be brought into direct contact with a heat sink.

[0101] Alternatively or additionally, the at least one cooling surface of the magnetic-field-sensitive component can be brought into direct contact with a heat sink, preferably by means of a thermally conductive paste. This can further improve the thermal conductivity, in particular the heat transfer between a cooling surface of the magnetic-field-sensitive component and a heat sink.

[0102] The heat sink may have cooling fins.

[0103] The heat sink can be operatively connected to a fan.

[0104] Optionally, the magnetic field sensitive component has at least partially a non-conductive layer on its surface and / or is at least partially enclosed by a non-conductive housing.

[0105] A non-conductive layer and / or a non-conductive housing can be formed at least partially from an electrically non-conductive material and / or a non-magnetic material, in particular from a molten plastic powder, preferably a thermoplastic and / or a thermoset or have such.

[0106] A non-conductive housing can be manufactured in particular using an injection molding process and / or a thermoforming process and / or a PUR-RIM process and / or another plastics manufacturing process.

[0107] A non-conductive housing can, in particular, have 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 magnetic field-sensitive component is at least partially enclosed by the non-conductive housing. A non-conductive layer can comprise an epoxy resin and / or a lacquer or several lacquer layers. This results in an insulating layer and / or fixing layer with a smaller volume than in a non-conductive housing.

[0108] A non-conductive layer can be produced in particular by a spraying process and / or a dipping process and / or a coating process.

[0109] A non-conductive housing and / or a non-conductive layer can have at least one recess on the surface of the magnetic field-sensitive component. In particular, the at least one recess can be arranged on the magnetic field-sensitive component in such a way that the at least one cooling surface of the magnetic field-sensitive component and the at least one recess can be arranged at least partially congruently one above the other, in particular arranged congruently one above the other in such a way that a heat sink can be brought into direct and / or indirect contact with the at least one cooling surface. This makes it possible to achieve effective cooling of the inductive component.

[0110] Particularly preferably, the inductive component has a symmetrical arrangement of a plurality of conductor pieces, in particular a symmetrical arrangement of a plurality of conductor pieces with respect to the magnetic field-sensitive component, in particular a symmetrical arrangement of a plurality of conductor pieces within a group of conductor pieces.

[0111] In a symmetrical arrangement of a plurality of conductor pieces, the relative position of a plurality of conductor pieces can be designed such that the distance between conductor pieces can be equidistant, in particular substantially equidistant, in particular the distance between conductor pieces within a group of conductor pieces. In particular, the relative position of a plurality of conductor pieces can be designed such that the distance between the conductor pieces can be minimized with respect to a minimum required creepage distance. In other words, the distance between the conductor pieces can be adjusted and / or minimized by the position of holes in an electrically insulating carrier board.

[0112] Furthermore, in a symmetrical arrangement of a plurality of conductor pieces, the relative position of a plurality of conductor pieces can be designed such that the distance between the conductor pieces and the magnetic field-sensitive component in a transverse direction to the axial extension direction of the magnetic field-sensitive component is identical, in particular substantially identical, in particular in a direction orthogonal to the axial extension direction.

[0113] Furthermore, the distance between the conductor pieces and the magnetic-field-sensitive component can be minimized in a direction transverse to the direction of extension of the magnetic-field-sensitive component. In other words, the distance between the conductor pieces and the magnetic-field-sensitive component can be adjusted in a direction transverse to the direction of extension of the magnetic-field-sensitive component by the bracket shape of the conductor pieces.

[0114] In other words, the relative position of a plurality of conductor pieces can be designed such that the conductor pieces can be arranged in a regular pattern on the magnetic field sensitive component.

[0115] This allows for a minimal magnetic stray field. This allows for particularly high efficiency of the inductive component and thus particularly high thermal stability. Furthermore, a minimal stray field allows for particularly good electromagnetic compatibility.

[0116] Optionally, the inductive component has an asymmetrical arrangement of a plurality of conductor pieces, in particular an asymmetrical arrangement of a plurality of conductor pieces with respect to the magnetic field-sensitive component, in particular an asymmetrical arrangement of a plurality of conductor pieces within a group of conductor pieces.

[0117] In an asymmetrical arrangement of a plurality of conductor pieces, the relative position of a plurality of conductor pieces can be designed such that the distance between conductor pieces can be variable, in particular different between two conductor pieces, in particular the distance between conductor pieces within a group of conductor pieces.

[0118] This makes it possible to achieve a variably adjustable stray field, whereby the stray field can be specifically worsened compared to the ideally achievable stray field. In particular, a stray field of the inductive component can be adjusted to suit a specific application. This means that the inductive component used for a choke can be optimized not only for attenuation of common-mode interference currents but also for attenuation of differential-mode interference currents. Usually, the attenuation of common-mode interference currents and the attenuation of differential-mode interference currents are achieved by separate inductive components, so that overall functional integration can be achieved with the inductive component proposed here.

[0119] Advantageously, at least one conductor piece of the plurality of conductor pieces is arranged offset in a transverse direction to the axial extent of the magnetic field sensitive component with respect to a relative position between the other conductor piece of the plurality of conductor pieces and the magnetic field sensitive component or with respect to the relative positions between the other conductor pieces of the plurality of conductor pieces and the magnetic field sensitive component.

[0120] Furthermore, in the case of an asymmetrical arrangement of a plurality of conductor pieces, the relative position of a plurality of conductor pieces can be designed such that the distance between the conductor pieces and the magnetic field-sensitive component is variable in a transverse direction to the axial extension direction of the magnetic field-sensitive component, in particular different between each two conductor pieces, in particular in a direction orthogonal to the axial extension direction.

[0121] Furthermore, the distance between the conductor pieces and the magnetic field-sensitive component can be individually adjusted in a direction transverse to the direction of extension of the magnetic field-sensitive component. In other words, the distance between the conductor pieces and the magnetic field-sensitive component can be adjusted in a direction transverse to the direction of extension of the magnetic field-sensitive component by the bracket shape and / or the bracket position of the conductor pieces. This makes it possible to achieve a variably adjustable stray field. In particular, a stray field of the inductive component can be adjusted to suit an application. This again makes it possible to dampen differential mode interference currents particularly well.

[0122] Furthermore, at least one conductor piece of the plurality of conductor pieces is expediently arranged offset in a direction of the axial extension of the magnetic field sensitive component with respect to a relative position between the other conductor piece of the plurality of conductor pieces and the magnetic field sensitive component or with respect to the relative positions between the other conductor pieces of the plurality of conductor pieces and the magnetic field sensitive component.

[0123] Furthermore, in the case of an asymmetrical arrangement of a plurality of conductor pieces, the relative position of a plurality of conductor pieces can be designed such that the distance between the conductor pieces and the magnetic field-sensitive component is variable in a direction of the axial extension direction of the magnetic field-sensitive component, in particular different between each two conductor pieces.

[0124] Furthermore, the distance between the conductor pieces and the magnetic field-sensitive component can be individually adjusted in one direction of the extension direction of the magnetic field-sensitive component. In other words, the distance between the conductor pieces and the magnetic field-sensitive component can be adjusted in one direction of the extension direction of the magnetic field-sensitive component by the bracket length of the conductor pieces. This makes it possible to achieve a variably adjustable stray field. In particular, a stray field of the inductive component can be adjusted to suit an application. This again allows normal-mode interference currents to be particularly well attenuated.

[0125] A particularly useful soft magnetic solid is a metallic glass.

[0126] The following term is explained in this regard:

[0127] 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.

[0128] 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. In addition, metallic glasses can exhibit high electrical resistance, which makes them particularly well-suited for some applications of the inductive component proposed here.

[0129] Particularly preferably, the soft magnetic solid has a nanocrystalline structure.

[0130] The following term is explained in this regard:

[0131] A material with a "nanocrystalline structure" is understood to be a polycrystalline solid with a nano-microstructure, where the microstructure is understood to be the type, crystal structure, number, shape and topological arrangement of point defects, dislocations, stacking faults and grain boundaries in a crystalline material.

[0132] The nanocrystalline structure allows the physical properties of the inductive component to be further improved. In particular, the permeability of the soft magnetic material can be increased.

[0133] Preferably, a nanocrystalline material is produced from an amorphous material, wherein the crystal growth starting from the amorphous material is stimulated by the action of a thermal and / or magnetic effect. Preferably, the magnetic field-sensitive component consists of a soft magnetic material with a nanocrystalline structure having a typical grain size in the range from 5 pm to 30 pm, preferably of a nanocrystalline soft magnetic material with a typical grain size in the range from 7 pm to 20 pm, particularly preferably of a nanocrystalline soft magnetic material with a typical grain size in the range from 8 pm to 15 pm. In this way, particularly advantageous physical properties can be achieved for the magnetic field-sensitive component and thus also for the inductive component, in particular with regard to the permeability and / or the coercive field strength.

[0134] According to a preferred embodiment, the soft magnetic material has the following atomic composition:

[0135] [Fei-aNiaJ 100-xyza-ß-Y CU X S i y B z Nbo ' 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, Al and Zn, where M" is at least one of the elements C, Ge, P, Ga, Sb, In and Be.

[0136] Laboratory tests have shown that the above specification of the soft magnetic material leads to particularly advantageous material properties for the inductive component proposed here.

[0137] In particular, the above material specification makes it possible to achieve an inductive component with a particularly small coercive field strength and / or a particularly high permeability.

[0138] Preferably, the above-specified soft magnetic solid has nickel, in particular a nickel content of greater than or equal to 4.5 wt.%, preferably a nickel content of greater than or equal to 5 wt.% and particularly preferably a nickel content of greater than or equal to 5.5 wt.%.

[0139] The soft magnetic solid advantageously exhibits a magnetostriction with a relative change in length parallel to the magnetic field of less than or equal to 2 times 10~ 6 to , preferably less than or equal to 1 times 10~ 6 and particularly preferably less than or equal to 0.5 times 10~ 6 .

[0140] The following term is explained in this regard:

[0141] "Magnetostriction" refers to the deformation of a magnetic field-sensitive component as a result of an applied magnetic field. The magnetic field-sensitive component undergoes an elastic change in length at a constant volume.

[0142] This can advantageously ensure that the transmission behavior of the inductive component is less dependent on a deformation of the magnetic field-sensitive component, and preferably is not dependent at all.

[0143] Furthermore, the magnetostriction values ​​specified here ensure that the inductive component does not emit any disturbing noises during its designated use, and in particular does not emit any noises that are perceptible to humans.

[0144] Optionally, the inductive component has an electrically insulating carrier plate with bores and electrically conductive structures and / or is connected to an electrically insulating carrier plate with bores and at least one electrically conductive structure, in particular by means of the at least one conductor piece. The electrically insulating carrier plate can be designed as a circuit board, in particular as a circuit board of a switched-mode power supply. By connecting it to an electrically insulating carrier plate, the inductive component can be integrated into an electrical circuit particularly easily.

[0145] The holes in the electrically insulating support plate can, in particular, be arranged on the electrically insulating support plate in such a way that at least one conductor section end of a conductor piece can be received in the holes, in particular when the inductive component is connected to the electrically insulating support plate. In other words, the holes in the electrically insulating support plate can be arranged corresponding to the conductor section ends of the at least one conductor piece.

[0146] The inductive component can be connected, in particular, to the magnetic-field-sensitive component directly and / or indirectly to an electrically insulating carrier plate. The electrically insulating carrier plate can have at least one locking device with which a locking element can be received in such a way that a locking connection can be achieved.

[0147] The magnetic-field-sensitive component can have at least one locking element. The locking element can be arranged directly and / or indirectly on the magnetic-field-sensitive component, in particular arranged such that the magnetic-field-sensitive component can be connected to the electrically insulating carrier plate via a locking connection. In particular, the locking element of the magnetic-field-sensitive component can lock into the locking device of the carrier plate.In particular, the locking element can be arranged on a housing which at least partially encloses the magnetic field-sensitive component. The at least one conductor piece expediently has conductor section ends, wherein the conductor section ends are connected to bores in the electrically insulating carrier plate, in particular are connected to the electrically insulating carrier plate in such a way that the conductor section ends and the at least one electrically conductive structure form a winding with respect to the magnetic field-sensitive component.

[0148] Advantageously, all conductor pieces of an inductive component have conductor section ends, wherein the conductor section ends are connected to bores in the electrically insulating carrier plate, in particular are connected to the electrically insulating carrier plate in such a way that the conductor section ends and the electrically conductive structures form windings with respect to the magnetic field-sensitive component.

[0149] Optionally, the electrically insulating carrier plate has an electrical connection on the side facing away from the inductive component, which is designed to form a winding enclosing the magnetic field-sensitive component.

[0150] According to a second aspect of the invention, the object is achieved by a method for producing an inductive component according to the first aspect of the invention, comprising the following steps:

[0151] Providing a magnetic field sensitive component;

[0152] Providing at least one electrically conductive conductor piece; and

[0153] Arranging the at least one electrically conductive conductor piece, wherein the at least one electrically conductive conductor piece less than completely encloses the magnetic field-sensitive component.

[0154] It is understood that the advantages of an inductive component according to the first aspect of the invention as described above extend directly to a method for producing an inductive component according to the first aspect of the invention.

[0155] It should be expressly pointed out 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 or cumulatively in any combination.

[0156] According to a third aspect of the invention, the object is achieved by using an inductive component according to the first aspect of the invention as a choke, in particular as a common-mode choke.

[0157] It is understood that the advantages of an inductive component according to the first aspect of the invention as described above extend directly to the use of an inductive component according to the first aspect of the invention as a choke, in particular as a common-mode choke.

[0158] By using it as a common-mode choke, common-mode interference currents from the inductive component can be throttled, in particular reduced.

[0159] It should be expressly pointed out that the subject matter of the third aspect can be advantageously combined with the subject matters of the preceding aspects of the invention, both individually or cumulatively in any combination.

[0160] According to a fourth aspect of the invention, the object is achieved by using an inductive component according to the first aspect of the invention as a mains filter, in particular as a common-mode choke and as a differential-mode choke.

[0161] It is understood that the advantages of an inductive component according to the first aspect of the invention as described above extend directly to the use of an inductive component according to the first aspect of the invention as a line filter, in particular as a common-mode choke and as a differential-mode choke.

[0162] By using it as a mains filter, in particular as a common-mode choke and as a differential-mode choke, common-mode interference currents and / or differential-mode interference currents from the inductive component can be throttled, in particular reduced.

[0163] 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 combination.

[0164] According to a fifth aspect of the invention, the object is achieved by using an inductive component according to the first aspect of the invention in the context of power electronics and / or a switched-mode power supply, in particular in connection with an electric drive, in particular an electric drive of a motor vehicle.

[0165] It is understood that the advantages of an inductive component according to the first aspect of the invention as described above extend directly to a use of an inductive component according to the first aspect of the invention in the context of power electronics and / or a switched-mode power supply, in particular in connection with an electric drive, in particular an electric drive of a motor vehicle.

[0166] It should be expressly noted that the subject matter of the fifth 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 sixth aspect of the invention, the object is achieved by a motor vehicle comprising an inductive component according to the first aspect of the invention.

[0167] It is understood that the advantages of an inductive component according to the first aspect of the invention as described above extend directly to a motor vehicle comprising an inductive component according to the first aspect of the invention.

[0168] It should be expressly pointed out that the subject matter of the sixth aspect can be advantageously combined with the subject matters of the preceding aspects of the invention, both individually or cumulatively in any combination.

[0169] Further advantages, details and features of the invention will become apparent from the following exemplary embodiments. These show in detail:

[0170] Figure 1: a schematic representation of a first embodiment of an inductive component in a plan view from above

[0171] Figure 2: a schematic representation of a second embodiment of an inductive component in a plan view from above

[0172] Figure 3: a schematic representation of a third embodiment of an inductive component in a side view

[0173] Figure 4: a schematic sectional view of a fourth embodiment of an inductive component in a side view Figure 5: a schematic sectional view of a fifth embodiment of an inductive component in a side view

[0174] Figure 6: a schematic sectional view of a sixth embodiment of an inductive component in a side view

[0175] Figure 7: a schematic representation of a seventh embodiment of an inductive component in a plan view from below

[0176] Figure 8: a schematic representation of an eighth embodiment of an inductive component in a plan view from above

[0177] Figure 9: a schematic representation of a sixth embodiment of an inductive component and a circuit board in a perspective view

[0178] 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.

[0179] A first embodiment of an inductive component 10 according to Figure 1 essentially consists of a magnetic field-sensitive component 20, at least one first conductor piece 30, and at least one second conductor piece 40. The at least one first conductor piece 30 and / or the at least one second conductor piece 40 can be arranged on the magnetic field-sensitive component 20 such that the one first conductor piece 30 and / or the one second conductor piece 40 are spaced apart from one another, in particular symmetrically spaced apart from one another.

[0180] Optionally, the inductive component can have at least two first conductor pieces 30 and / or at least two second conductor pieces 40, preferably at least three and / or four and / or more than four. In particular, the inductive component 10 can always have the same number of first conductor pieces 30 and second conductor pieces 40. In other words, the inductive component 10 can always have pairs of first conductor pieces 30 and second conductor pieces 40.

[0181] A second embodiment of an inductive component 10 according to Figure 2 can have at least one cooling surface 91. In particular, the at least one cooling surface 91 can be arranged on the magnetic field-sensitive component 20, in particular on the surface of the magnetic field-sensitive component 20.

[0182] The inductive component 10 can have at least two cooling surfaces 91, preferably at least three cooling surfaces 91, particularly preferably at least four cooling surfaces 91, again preferably at least more than four cooling surfaces 91. The cooling surfaces 91 can be arranged symmetrically distributed on the surface of the magnetically sensitive component 20, in particular between the first conductor pieces 30 and the second conductor pieces 40. The cooling surfaces 91 can be arranged on the magnetically sensitive component 10 in such a way that a heat sink 90 (not shown) can be brought into contact with the at least one cooling surface 91. In particular, the at least one cooling surface 91 can be arranged on the surface of the magnetic field-sensitive component 10 such that a heat sink 90 can be arranged at a distance from a first conductor piece 30 and / or a second conductor piece 40, in particular when the heat sink 90 is in contact with the cooling surface 91.

[0183] A third embodiment of an inductive component 10 according to Figure 3 can have at least one heat sink 90, which can be arranged at a distance from the inductive component 10, in particular can be arranged in a housing (not shown) enclosing the inductive component 10 at a distance from the inductive component 10. The heat sink 90 can have at least one cooling surface 92, in particular a cooling surface 92 which can be designed such that the cooling surface 92 can be brought into contact with a cooling surface 91 of a magnetic field-sensitive component 20, in particular can be brought into contact such that a normal direction of a cooling surface 91 of the magnetic field-sensitive component can coincide with a normal direction of a cooling surface 92 of the heat sink 90.In other words, a cooling surface 92 of the heat sink 90 can be brought into planar contact with a cooling surface 91 of a magnetic field-sensitive component 20.

[0184] The heat sink 90 can be formed or comprise at least partially from a material with a particularly high thermal conductivity, in particular from a material with > 10 W / (m*K) and / or X > 20 W / (m*K) and / or X > 50 W / (m*K) and / or X > 100 W / (m*K) and / or X > 150 W / (m*K) and / or X > 200 W / (m*K).

[0185] A thermally conductive paste can be arranged between the cooling surface 91 of a magnetic-field-sensitive component 20 and a cooling surface 92 of the heat sink 90. ​​The thermally conductive paste can further increase the thermal conductivity.

[0186] The heat sink 90 can have cooling channels, in particular cooling channels through which a fluid, in particular a cooling medium, can flow. A fourth embodiment of an inductive component 10 according to Figure 4 can have at least one connecting means 60, which can be arranged on a first conductor piece 30 and / or a second conductor piece 40. The at least one connecting means 60 can in particular be arranged such that an air gap can arise between the first conductor piece 30 and the magnetic field-sensitive component 20, in particular an air gap in the direction of an axial extension direction of the magnetic field-sensitive component 20 and / or in the direction of a transverse direction to the axial extension direction of the magnetic field-sensitive component 20, in particular in the direction of a direction orthogonal to the axial extension direction of the magnetic field-sensitive component 20.The at least one connecting means 60 can, in particular, be arranged such that an air gap can be created between the second conductor piece 40 and the magnetic field-sensitive component 20, in particular an air gap in the direction of an axial extension direction of the magnetic field-sensitive component 20 and / or in the direction of a transverse direction to the axial extension direction of the magnetic field-sensitive component 20, in particular in the direction of a direction orthogonal to the axial extension direction of the magnetic field-sensitive component 20. In this way, insulation can be achieved between the magnetic field-sensitive component 20 and the at least one first conductor piece 30 and / or the at least one second conductor piece 40.

[0187] A connecting means 60 can be designed differently in its spatial dimensions. In other words, a first connecting means 60 can have at least one spatial extent RI and a second connecting means 60 can have at least one spatial extent R2, where RI is not equal to R2. Thus, first conductor pieces 30 and / or second conductor pieces 40 can be arranged on a magnetic field-sensitive component 20 in such a way that different air gaps can be achieved, in particular different air gaps in the direction of an axial extension direction of the magnetic field-sensitive component 20 and / or in the direction of a transverse direction to the axial extension direction of the magnetic field-sensitive component 20, in particular in the direction of a direction orthogonal to the axial extension direction of the magnetic field-sensitive component 20.

[0188] In particular, each individual first conductor piece 30 and / or each individual second conductor piece 40 can be arranged in an individual relative position to the magnetic field-sensitive component 20.

[0189] A connecting means 60 can be formed at least partially from an elastically deformable material, in particular from a compressible material, in particular from a compressible PUR material, preferably from an elastomer material, particularly preferably from a thermoplastic elastomer material.

[0190] A connecting means 60 can be arranged such that a first conductor piece 30 and / or a second conductor piece 40 can engage behind the magnetic field sensitive component 20 when it is applied to the magnetic field sensitive component 20.

[0191] A first conductor piece 30 and / or a second conductor piece 40 can in particular have two connecting means 60, preferably three connecting means 60.

[0192] A first conductor piece 30 and / or a second conductor piece 40 having at least one connecting means 60 can, when arranged as intended, be arranged on a magnetic field-sensitive component 20 in such a way that the at least one connecting means 60 can be elastically deformed, preferably compressed, so that a frictional connection can arise between the at least one connecting means 60 and the magnetic field-sensitive component 20. This can create a clamping effect between the first conductor piece 30 and / or the second conductor piece 40 and the magnetic field-sensitive component 20, in particular if the first conductor piece 30 and / or the second conductor piece 40 has two connecting means 60, preferably three connecting means 60.The resulting force connection can, in particular, be so high that the first conductor piece 30 and / or the second conductor piece 40 remains substantially positioned on the magnetic field-sensitive component 20, in particular, remains fixed to the magnetic field-sensitive component 20, when the magnetic field-sensitive component 20 is mounted on an electrically insulating carrier plate 70. This allows for simplified assembly, in particular automated assembly.

[0193] The magnetically sensitive component 20 can have elevations that can be arranged on one or both side surfaces; in particular, a housing enclosing the magnetic field-sensitive component can have elevations. When a first conductor piece 30 and / or a second conductor piece 40 is arranged as intended on a magnetic field-sensitive component 20, in particular on a housing enclosing the magnetic field-sensitive component, a connecting means 60 can be guided over an elevation such that the connecting means 60 engages behind the elevation. In this way, a positive connection can be achieved between the connecting means 60 and the elevation. In this way, the first conductor piece 30 and / or the second conductor piece 40 can be positioned, in particular fixed, on the magnetic field-sensitive component 20 in a further improved manner.

[0194] A fifth embodiment of an inductive component 10 according to Figure 5 can have a magnetically sensitive component 20, in particular a magnetically sensitive component 20 having at least one latching hook 80. The at least one latching hook 80 is arranged on the magnetically sensitive component 20 in such a way that the at least one latching hook 80 can be inserted into the electrically insulating carrier plate 70 or a component of the electrically insulating carrier plate 70 fastened to the electrically insulating carrier plate 70 during assembly of an electrically insulating carrier plate 70, in particular during automatic assembly of an electrically insulating carrier plate 70, so that a latching connection can be brought about between the magnetically sensitive component 20 and the electrically insulating carrier plate 70.

[0195] The locking hook 80 can be arranged on a housing surrounding the magnetically sensitive component 20.

[0196] A sixth embodiment of an inductive component 10 according to Figure 6 can have a magnetic field-sensitive component 20, wherein the magnetic field-sensitive component 20 can be at least partially enclosed by a non-conductive layer 100, in particular a non-conductive layer 100 designed as insulation. The non-conductive layer 100 can be in direct contact with the magnetic field-sensitive component 20. The non-conductive layer 100 is designed such that the magnetically sensitive component 20 can be less than completely enclosed. The inductive component 20 can have a first conductor piece 30 and / or a second conductor piece 40, which can be arranged in direct contact with the non-conductive layer 100, in particular can be arranged such that the first conductor piece 30 and / or the second conductor piece 40 cannot come into direct contact with the magnetic field-sensitive component 20.In other words, the first conductor piece 30 and / or the second conductor piece 40 can be arranged at a distance from the magnetic field-sensitive component 20 by the non-conductive layer 100, in particular from the surface of the magnetic field-sensitive component 20. A seventh embodiment of an inductive component 10 according to Figure 7 can have an electrically insulating carrier plate 70, in particular an electrically insulating carrier plate 70 designed as a circuit board. The electrically insulating carrier plate 70 can have bores 120. The bores 120 can be arranged on the electrically insulating carrier plate 70 such that a bore 120 can accommodate a conductor section end 50 of at least one first conductor piece 30 and / or at least one second conductor piece 40, preferably when the electrically insulating carrier plate 70 is equipped with a magnetic field-sensitive component 20, preferably during automated assembly.The electrically insulating carrier plate 70 can have at least one electrically conductive structure 110 which can electrically conductively connect a conductor section end 50 of a first conductor piece 30 to a further conductor section end 50 of a further first conductor piece 30. In this way, a winding can be formed with respect to the magnetic field-sensitive component 20. Furthermore, the electrically insulating carrier plate 70 can have at least one electrically conductive structure 110 which can electrically conductively connect a conductor section end 50 of a second conductor piece 40 to a further conductor section end 50 of a further second conductor piece 40. In this way, a winding can be formed with respect to the magnetic field-sensitive component 20.

[0197] An eighth embodiment of an inductive component 10 according to Figure 8 can have a magneto-sensitive component 20, wherein the outer contour of the magnetic field-sensitive component 20 can be designed as an oval and / or the inner contour of the magnetic field-sensitive component 20 can also be designed as an oval. The outer contour and / or the inner contour of the magnetic field-sensitive component 20 can in particular be designed as an oval with two axes of symmetry. A ninth embodiment of an inductive component 10 according to Figure 9 can have an electrically conductive carrier plate 70, wherein the inductive component 10 can be arranged on the electrically conductive carrier plate 70.

[0198] List of reference symbols

[0199] 10 Inductive component

[0200] 20 Magnetic field sensitive component 30 First conductor piece

[0201] 40 Second ladder section

[0202] 50 Le it er section end

[0203] 60 lanyards

[0204] 70 Electrically insulating support plate 80 Snap hook

[0205] 90 heat sinks

[0206] 91 Cooling surface (of a magnetic field sensitive component)

[0207] 92 Cooling surface (of a heat sink)

[0208] 10 0 Non-conductive layer 11 0 Electrically conductive structure

[0209] 12 0 bore

Claims

Patent claims 1. Inductive component (10) comprising: a magnetic field-sensitive component (20) comprising a through-opening, wherein the magnetic field-sensitive component (20) has an axial extension, and at least one electrically conductive conductor (30, 40) less than completely enclosing the magnetic field-sensitive component (20), in particular at least two conductors (30, 40), four conductors (30, 40), six conductors (30, 40) or eight conductors (30, 40), wherein the inductive component is characterized in that the magnetic field-sensitive component (20) consists of a soft magnetic material and has 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.

2. Inductive component (10) according to claim 1, characterized in that the inductive component (10) has at least two conductor pieces (30, 40), wherein the conductor pieces (30, 40) are organized in a first group of conductor pieces (30, 40) and at least a second group of conductor pieces (30, 40).

3. Inductive component (10) according to one of claims 1 or 2, characterized in that at least one conductor (30, 40) is connected at least indirectly to the magnetic field-sensitive component (20) by means of a connecting means (60).

4. Inductive component (10) according to one of the preceding claims, characterized in that the magnetic field-sensitive component (20) has a cooling surface (91).

5. Inductive component (10) according to one of the preceding claims, characterized in that the magnetic field-sensitive Component (20) is designed for connection to a heat sink (90) and / or has a heat sink (90).

6. Inductive component (10) according to one of the preceding claims, characterized in that the magnetic field-sensitive component (20) has at least partially a non-conductive layer (100) on its surface and / or is at least partially enclosed by a non-conductive housing.

7. Inductive component (10) according to one of the preceding claims, characterized in that the inductive component (10) has a symmetrical arrangement of a plurality of conductor pieces (30, 40), in particular a symmetrical arrangement of a plurality of conductor pieces (30, 40) with respect to the magnetic field-sensitive component (20), in particular a symmetrical arrangement of a plurality of conductor pieces (30, 40) within a group of conductor pieces (30, 40).

8. Inductive component (10) according to one of claims 1 to 6, characterized in that the inductive component (10) has an asymmetric arrangement of a plurality of conductor pieces (30, 40), in particular an asymmetric arrangement of a plurality of conductor pieces (30, 40) with respect to the magnetic field-sensitive component (20), in particular an asymmetric arrangement of a plurality of conductor pieces (30, 40) within a group of conductor pieces (30, 40).

9. Inductive component (10) according to claim 8, characterized in that at least one conductor (30, 40) of the plurality of conductors (30, 40) is located relative to a position between the other conductor (30, 40) of the plurality of conductors (30, 40) and the magnetic field-sensitive component (20) or relative to the positions between the other conductors (30, 40) of the plurality of conductors (30, 40) and is arranged offset from the magnetic field-sensitive component (20) in a transverse direction to the axial extent of the magnetic field-sensitive component (20).

10. Inductive component (10) according to one of claims 8 or 9, characterized in that at least one conductor section (30, 40) of the plurality of conductor sections (30, 40) is arranged offset in a direction of the axial extent of the magnetic field-sensitive component (20) with respect to a relative position between the other conductor section (30, 40) from the plurality of conductor sections (30, 40) and the magnetic field-sensitive component (20) or with respect to the relative positions between the other conductor sections (30, 40) from the plurality of conductor sections (30, 40) and the magnetic field-sensitive component (20).

11. Inductive component (10) according to one of the preceding claims, characterized in that the soft magnetic material is a metallic glass.

12. Inductive component (10) according to one of the preceding claims, characterized in that the soft magnetic material has a nanocrystalline structure.

13. Inductive component (10) according to one of the preceding claims, characterized in that the soft magnetic material has the following atomic composition: [Fei-aNiaJ 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, Al and Zn, where M" is at least one of the elements C, Ge, P, Ga, Sb, In and Be.

14. Inductive component (10) according to one of the preceding claims, characterized in that the soft magnetic material a magnetostriction with a relative change in length parallel to the magnetic field of less than or equal to 2 times 10⁻⁶. 6exhibits, preferably of less than or equal to 1 time 10~ 6 and especially preferred by less than or equal to 0.5 times 10 6 .

15. Inductive component (10) according to one of the preceding claims, characterized in that the inductive component (10) has an electrically insulating carrier plate (70) with bores (120) and electrically conductive structures (110) and / or is connected to an electrically insulating carrier plate (70) with bores (120) and at least one electrically conductive structure (110), in particular by means of the at least one conductor piece (30, 40).

16. Inductive component (10) according to claim 15, characterized in that the at least one conductor section (30, 40) has conductor section ends (50), wherein the conductor section ends (50) are connected to bores (120) of the electrically insulating carrier plate (70), in particular connected to the electrically insulating carrier plate (70) in such a way that the conductor section ends (50) and the at least one electrically conductive structure (110) form a winding with respect to the magnetic field-sensitive component (20).

17. Method for manufacturing an inductive component (10) according to any one of claims 1 to 16 comprising the following steps: Providing a magnetic field-sensitive component (20) ; Providing at least one electrically conductive conductor (30, 40); and Arranging the at least one electrically conductive conductor (30,40) wherein the at least one electrically conductive conductor (30,40) less than completely surrounds the magnetic field sensitive component (20).

18. Use of an inductive component (10) according to any one of claims 1 to 16 as a choke, in particular as a common-mode choke.

19. Use of an inductive component (10) according to any one of claims 1 to 16 as a mains filter, in particular as a common-mode choke and as a differential-mode choke.

20. Use of an inductive component (10) according to one of claims 1 to 16 in the context of power electronics and / or a switched-mode power supply, in particular in connection with an electric drive, especially an electric drive of a motor vehicle.

21. Motor vehicle comprising an inductive component (10) according to one of claims 1 to 16.

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