FORM-ADAPTIVE MOUNTING FOR A CORE VERSION AND INDUCTIVE BUILDING ELEMENT MANUFACTURED WITH IT

Description

[0001] In general, the present invention relates to inductive components in which a core design is received by a coil body or a holder in order to apply one or more windings in a suitable manner.

[0002] In the manufacture of inductive components, which essentially consist of a core material that conducts a magnetic field and one or more windings, a suitable coil former or a holder or receptacle for the core is often required to enable the most compact overall design and an efficient method for winding the inductive component. When manufacturing inductive components with a non-linear core material geometry, particularly in the form of toroidal cores, there are variants in which a winding is applied directly to the insulated core material, with the core insulation being, for example, epoxy resin-based. However, this type of component is unsuitable or only conditionally suitable for use in many applications due to its limited electrical and mechanical properties.In other variants, where more demanding requirements regarding the insulation between the winding and the core design must be considered, a corresponding holder, which can also be called a coil former, is used to hold and accommodate the toroidal core.

[0003] Despite the industrial manufacturing of core components, the processes involved, such as sintering, result in significant manufacturing tolerances regarding the core's dimensions. These tolerances tend to increase considerably with more complex core geometries, such as toroidal cores. Therefore, when core components with high manufacturing tolerances are to be combined with improved insulation, the corresponding holder is typically manufactured to accommodate the maximum permissible tolerances, such as differences in the inner and / or outer diameter of the toroidal cores. Another option is the application of additional insulation, for example, in the form of a strip.

[0004] This type of manufacturing of inductive components with non-linear geometry, especially with ring cores, therefore results in a high workload, since, particularly due to the consideration of dimensional tolerances in combination with the need to provide further insulation, a component is obtained that may require further post-processing steps in order to ultimately achieve a compact and backlash-free structure between core design, holder and winding.

[0005] Document DE 10 2009 046 570 A1 relates to an inductive arrangement and a method for its manufacture. The inductive arrangement comprises a soft magnetic toroidal core, at least two windings, and an electrically insulating sector separator. The sector separator has a tube segment extending along a section of the inner circumference of the toroidal core within the opening, at least one web extending radially from the tube segment towards the outer circumference of the core, and a clamping device located in the outer circumferential region. The sector separator is made of rubber. Each pair of windings is separated from each other by at least one web.

[0006] Document EP 2 835 805 A1 relates to a winding coil for a toroidal inductor. A plastic spacer for positioning windings around an inductor core comprises an inner spacer, an outer surface for coupling the inner spacer to a toroidal inductor core, and an inner surface opposite the outer surface for receiving inductor windings. The inner spacer has a thickness profile between the opposing inner and outer surfaces to space the windings inwards from the inductor core, thereby reducing magnetic leakage effects on the windings.

[0007] Document CN 110 060 846 A relates to a transformer core with a toroidal core, which further comprises a core insulating cap and an insulating insert. The core insulating cap is annular and is arranged on the top and bottom of the annular iron core. The core insulating cap, made of rubber or plastic, is formed by joining a plurality of arcuate insulating segments, the front and rear ends of which are rigidly connected to a partition, and the partition at the front end of the insulating segment being separated from the partition at the rear end. A slot is formed in the partition, which is connected to the core slot. The shape of the slot is the same as the cross-sectional shape of the transverse slot. The core slot is covered by a core cover plate, an outer diameter cover plate, and an inner diameter cover plate.

[0008] It is therefore an object of the present invention to provide means by which a core design and an inductive component made therefrom can be created while avoiding or at least reducing the previously described technical problems of the prior art.

[0009] According to a first aspect of the present invention, the aforementioned problem is solved by a holder for receiving a core assembly according to claim 1. The holder according to the invention, which can also be considered a coil former or coil former part, has the property, due to its deformability, at least in one area of ​​the holder, that it can be manufactured with an interference fit corresponding to the maximum permissible dimensional tolerance, since adaptation to the outer shape, i.e., the contour, of the core assembly is possible by changing the shape of at least one area. This adaptability to the contour of the core material ensures that close contact between the holder and the core assembly occurs, at least in certain areas, to adapt to the contour, thus generally avoiding excessive play between the core assembly material and the holder.In conventional methods described above, a relatively large gap is often found between the holder and the core design, since the design must be based on the maximum permissible dimensional tolerances for the holder, even though large manufacturing tolerances typically occur only rarely. These differences must conventionally be compensated for subsequently in a costly manner. According to the invention, the deformability and thus adaptability of the holder to the contour of the core design typically allows for additional insulation of the core material, which is conventionally often achieved by costly wrapping with tape, as the holder itself can serve as efficient insulation.

[0010] By providing edge areas connected by non-linear ribs, a significant degree of material savings is achieved. Furthermore, the ribs between the two edge areas contribute to increased adaptability to the contour of the core design that the holder must accommodate between the two edge areas. In particular, the inclusion of these non-linear ribs between the two edge areas provides a degree of elasticity for many types of materials, which would not be possible to the same extent when using a solid material.

[0011] In an advantageous embodiment, the holder according to the invention has at least one elastic region. That is, in this embodiment, the at least one region has elastic properties that thus provide a restoring force which tends to return the region to its original shape when deformation has occurred in the holder. In this way, the deformability of the holder can be achieved due to the elasticity of the at least one region, while simultaneously ensuring an efficient and mechanically stable adaptation to the contour of the core material.

[0012] In the present application, the term "elastic" or "elasticity" is to be understood as meaning that when the shape changes from a stable equilibrium shape, i.e., a shape without external force, a restoring force is always generated, depending on the degree of deformation, regardless of whether such a restoring force and thus elasticity is achieved by material properties or material properties in conjunction with a special geometric structure, such as in the form of a coil spring, and the like, or by a combination of material properties, such as the properties of a plastic, and geometry.

[0013] In an advantageous embodiment, the bracket has a spring element in the at least one elastic region. That is, in this embodiment, the elastic property of the at least one region is achieved by providing a spring element whose spring action is determined, in particular, by a suitable geometry in conjunction with the fundamental material properties of the plastic material from which the spring element is made. The spring element can be made from the base material of the bracket and be provided in a suitable geometry such that the elastic effect is achieved. In other variants, the spring element is made from a suitable material that differs from the base material of other regions of the bracket.

[0014] In further advantageous embodiments, the elastic region obtains its elastic property at least partially through the elasticity of a material component used within that region. That is, in these embodiments, the at least one region contains a material that inherently possesses elastic properties and thus imparts these properties to the region. In these cases, it may not be necessary to provide a specific geometry for the at least one elastic region, whereas in other variants, as described above, a suitable geometric design can be employed in addition to the elastic material properties to achieve the desired overall degree of elasticity.

[0015] Generally speaking, it should be noted that the adaptability of the bracket to the contour of the core design is easily controllable, as the choice of material properties and / or geometry is subject to relatively low manufacturing tolerances. For example, the material properties of many types of plastics are well known in advance or can be appropriately adjusted and maintained within very narrow ranges even during mass production. The same applies to the provision of a specific geometry for spring elements and the like, which are thus predetermined with low tolerances due to design considerations.

[0016] According to the invention, the holder for receiving the core is designed to have a non-linear geometry. The core, and thus the holder adapted to it, has a non-linear closed geometry, enabling efficient shape adaptation as described above. For cores with closed geometries, such as toroidal or oval cores, the adaptability of the holder to the contour of the core creates a relatively "form-fit" area of ​​the holder in conjunction with a corresponding area of ​​the core, enabling compact dimensions, relatively little play, and high mechanical robustness.

[0017] In a further advantageous embodiment, the holder is designed such that, during at least partial adaptation to the contour of the core, it exerts a holding force that results in a clamping effect between the holder and the core. That is, one or more properties of the holder, such as its overall geometry, are such that the core is clamped at least between some areas of the holder, thereby creating a compact and mechanically stable unit of core material and holder. This offers advantages during subsequent winding, as no further mechanical means are required to attach the holder to the core.

[0018] In an advantageous embodiment, the webs connect to the first and second edge regions at non-right angles. This means that the webs are joined to their respective edge regions at an angle that is not a right angle, thus establishing a preferred direction that allows for greater deformability of the webs and consequently a displacement of the two edge regions relative to each other. In this context, an angle that is not a right angle should be understood as excluding angles of 90° ± 10°. That is, an angle of 80° or less and an angle of 100° or greater are considered non-right angles.

[0019] According to the invention, the webs are non-linear. This means that the webs themselves, due to their non-linear geometry, can provide a certain degree of elasticity, thus increasing the overall shape adaptability without further additional measures. The non-linear geometry can be a simple convex or concave curve, or it can include a more complex structure, such as an S-shaped structure, and the like.

[0020] It should also be noted that, particularly when using non-straight geometries for the webs, an angle of approximately 90° leading into the respective edge areas can also result in sufficient elasticity.

[0021] In a further advantageous embodiment, the holder has a first section and a second section arranged in series in a field-guiding direction of the core assembly and connected by an elastically acting area along the field-guiding direction. In this embodiment, at least two sections arranged one behind the other in the "longitudinal direction" are thus provided, which are elastically and therefore deformably connected to one another. The longitudinal direction, i.e., the field-guiding direction of the core assembly, is therefore to be understood as a direction that is almost perpendicular to a plane of windings provided to manufacture an inductive component based on the core assembly and the holder.Due to the connection via the elastically acting area between two sections arranged in series, efficient adaptation to the contour of the core design can be achieved, particularly for core materials with non-linear geometry. In other variants, more than two sections are provided for the corresponding core material, for example, for a closed core geometry such as a ring core, thus enabling even more efficient shape adaptation to the contour of the core design.

[0022] In an advantageous embodiment, the elastically acting area in the field-guiding direction is provided only on a radially outer side of the holder in the case of a non-linear closed geometry of the core design. This measure ensures, in particular, a pronounced adaptation to the contour of the core design, since a corresponding gap can be provided on the radially inner side. In this way, potential mechanical obstructions on the radially inner side are avoided.

[0023] In a further advantageous embodiment, the first and / or the second section are bounded and / or subdivided in the field-carrying direction by at least one partition. The partition thus divides the first and / or second section in a suitable manner, so that corresponding functional sub-areas are present on the first and / or second section. These functional subdivisions offer the possibility of efficiently applying one or more windings and providing a corresponding mechanical termination or stop. Furthermore, the partition can also contribute to a higher insulation strength of one or more corresponding windings to be applied, since, for example, several voltage zones are provided, each of which has only relatively small voltage drops but is reliably isolated from one another by the partitions.For example, the first and / or second section, as well as any further sections if such further sections are provided, can be delimited at their respective front and rear ends by appropriate partitions. In other variants, in addition to or as an alternative to partitions at the front and rear ends, a partition is provided between the front and rear ends if such a subdivision is deemed suitable.

[0024] According to a further aspect of the present invention, the aforementioned problem is solved by an inductive component. The inductive component has a core material for guiding a magnetic field and includes a holder for receiving the core, the holder having the properties already described and further detailed below. Furthermore, the inductive component includes a winding that extends along at least a portion of the core in the field-guiding direction and surrounds the holder and the core.

[0025] Due to the mounting according to the invention, the inductive component according to the invention has a structure such that the core design and mounting are almost positively interlocking, at least in certain areas, and thus form a compact mechanical unit. This applies in particular to more complex geometries of the core material, for example, to a closed core geometry in the form of a ring or oval core, and the like, whereby, depending on the design of the mounting, efficient adaptation to the outer and inner diameters as well as the height can be achieved.

[0026] For example, in some versions, the holder is designed such that a spring element or an elastic section is provided on an outer surface, as explained previously, thus enabling efficient adaptation to the outer diameter of the core design. Conversely, in certain design variants, efficient adaptation of the inner diameter with curved or annular core geometries can be achieved by appropriately selecting the webs described earlier.

[0027] In further advantageous variants, the holder is generally designed in its geometry or other properties such that an additional mechanical connection between the holder and the core is not required before winding. That is, as previously described in some variants, a mechanical clamping effect results from a suitable selection of the holder's properties, such as its overall geometry, elasticity, and the like. Due to the close contact between the core and the holder, no further measures to prevent gaps are necessary. In particular, the holder material itself can serve as insulation if it radially surrounds the core material over a large area, thus eliminating the need for any additional insulation measures.This means that the potentially required high voltage resistance between the core material and the winding is provided by the holder itself and its material thickness.

[0028] Furthermore, the holder can prevent damage to the sheathing and insulation, especially when using large-diameter wires, when employing typical winding techniques, some of which are performed under high tension. Additional measures, such as the use of partitions, can further improve the insulation strength, as described previously.

[0029] According to the invention, the core design is in the form of a non-linear closed geometry, in which the advantages described above are particularly evident.

[0030] In a further advantageous embodiment, the inductive component includes an additional holder possessing the aforementioned properties. This holder, in conjunction with the existing holder, accommodates and secures the core assembly, with the winding enclosing both the existing holder and the additional holder. In this variant, a complete holder is provided in the form of two identically constructed holders arranged complementarily to each other, ensuring reliable accommodation of the core assembly between them. This simplifies the process of attaching the core material to the holder. Furthermore, these identical holders can be manufactured using suitable methods, such as injection molding, without requiring a complex mold.

[0031] With reference to the accompanying drawings, further illustrative embodiments, as well as the embodiments shown so far, are now described in more detail.

[0032] The figures show: Fig. 1 a perspective schematic view of a holder for receiving core materials, which, in conjunction with another essentially identical holder, receives a core material with partial adaptation to the contour of the core design, wherein in the illustrated embodiment the core design has the core geometry of a ring core, Fig. 2A A perspective view of an inductive component in which at least one winding is provided above the holder and the core design accommodated therein, wherein the holder incorporates at least some properties of the core design. Fig. 1 shown bracket, and

[0033] Fig. 2B a side view of the inductive component of the Fig. 2A .

[0034] With reference to the accompanying drawings, further embodiments are now described in more detail, and further features of the embodiments described so far are also shown where applicable.

[0035] Fig. 1 Figure 1 is a perspective view of a holder 100, which serves to receive a core shape or core design 190, which in turn is designed to guide a magnetic field. In the present application, a core material is therefore to be considered as a magnetizable material, which is used in particular to guide a magnetic field through a Fig. 1 The winding is generated as shown. This also includes cases where the core material contains a magnetized material.

[0036] In the illustrated embodiment, the core material 190 has a non-linear geometry, i.e., a "longitudinal direction" of the core design 190, which essentially coincides with the direction of a magnetic field, regardless of whether alternating or static magnetic fields are considered, corresponds to a non-reclined propagation direction. In the illustrated embodiment, the core design 190 has a closed geometry, i.e., that in the illustrated embodiment, the core design 190 has no starting point and no end point along the field propagation or the field-carrying direction. In this respect, Fig. 1 A nearly circular geometry, also referred to herein as a ring core geometry, is depicted, although, as previously described, other forms of closed core geometry are also applicable. For example, depending on the intended application and the manufacturing complexity of the core design 190, the core design 190 can have the shape of an oval, a rectangle, a square, and the like. Furthermore, non-linear geometry is also understood to mean any geometry in which at least parts of the core design 190 define a field guidance direction that deviates from a straight line, for example, in the form of parts of a ring core geometry that may subsequently be assembled into a desired shape, and so on.Furthermore, it should be noted that one or more "air gaps" may be provided, which are intended as actual air gaps and are appropriately fixed, for example, by the support 100, or which, if necessary, are formed by a suitable non-magnetizable material arranged between adjacent sections of a field-carrying material.

[0037] The holder 100 is designed such that it is adapted, at least in certain sections, generally referred to here as 110, 130, and 140, to the contour of the core design 190. This means that in sections 110, 130, and 140, there is at least partial mechanical contact between the material of the holder 100 and the core design 190, resulting in a more or less pronounced mechanical contact and thus a clamping effect. In general, the holder 100 is designed to be deformable, allowing for contour adaptation in sections 110, 130, and 140. For this purpose, areas can be provided in the holder 100 that ensure elastic behavior of the holder 100, at least in parts of it.For example, sections 110, 130, 140, which assume a shape adapted to the contour of the core design 190, can themselves function as elastic areas and / or one or more further areas can be provided that give the bracket 100 a certain degree of elasticity.

[0038] For example, at least one area 120 is provided on the outer surface of the holder 100 such that, due to the geometry and / or material properties of the area 120, elastic behavior is achieved, particularly at the outer edge of the holder 100. In the illustrated embodiment, the elastic area 120 is provided in the form of a spring element, which, due to its geometry, already allows deformation of the holder 100 and is specifically designed to adapt to the outer diameter of the core design 190 if the latter has a ring geometry or, more generally, a curved geometry.

[0039] In the illustrated embodiment, the elastic area 120, which serves as a spring element, has the form of a clamp-like connection between two sections that are at least partially adapted to the contour of the core design 190, for example, the area or section 110 and the section 130. That is, the area 120, which acts as a spring element and gives the holder 100 elastic properties, connects a corresponding outer edge area 111 of the section 110 with a corresponding outer edge area of ​​the section 130 and thus not only generally gives the holder 100 a certain deformability and elasticity, but in particular offers good adaptability to the outer diameter of the core design 190.

[0040] In the illustrated embodiment, the holder 100 is divided into three sections, i.e., sections 110, 130, and 140, in order to replicate the entire circumference of the core assembly 190 to be accommodated. Thus, the respective sections 110, 130, and 140 are connected to each other by corresponding elastic sections, for example, in the form of spring elements, which may have the same structure as the elastic section 120.

[0041] In the illustrated embodiment, the holder 100 is provided as a "one-piece" material component, manufactured from a suitable material, such as a plastic material, for example in the form of an elastomer, or the like, by a suitable manufacturing process, such as injection molding. The geometry and the material composition are selected to appropriately achieve the deformability and, if necessary, elasticity required to adapt to the contour of the core design 190. Providing the holder 100 as a one-piece component, i.e., as a component with a nearly uniform material composition throughout its entire volume, is particularly advantageous due to its simple and cost-effective manufacturing.In other variants, where more complex material compositions are required in certain areas of the bracket 100 to meet demanding requirements regarding insulation strength, material resistance under critical operating conditions, and the like, the bracket 100 can be constructed from two or more different materials. However, the selection and geometry of the individual materials must be such that the required deformability and elasticity are present at least in areas 120 and, if applicable, in sections 110, 130, and 140. For example, such material mixtures can be used during injection molding, or further components can be mechanically attached to the base components of the bracket 100 after its manufacture.

[0042] In the illustrated embodiment, corresponding webs 113 are provided as connecting elements between the outer edge region 111 of the respective sections 110, 130, and 140 and an inner edge region 112. The webs 113, which can also be referred to as lamellae, are arranged in the illustrated embodiment such that their respective end regions, where they open into the outer edge region 111 or the inner edge region 112, have an angled profile. That is, in the illustrated embodiment, the webs 113 opening into the edge regions 111 and 112 are arranged so that they do not open at right angles into the respective edge region 111 or 112.In this way, in addition to saving material in the respective sections 110, 130, and 140, a high degree of deformability and elastic behavior is achieved, since the webs 113, due to their non-perpendicular entry, particularly on the inside, i.e., at the edge regions 112, allow for radial inward and outward deformation, thus enabling a pronounced adaptability to the inner radius of the core design 190. That is to say, if adaptation to the inner radius of the core design 190 is required, the webs 113 can be deflected transversely to their longitudinal direction to a certain extent without requiring an excessively pronounced elastic property in the base material of the webs 113.Therefore, if a radially inward or outward force is exerted on the respective inner regions 112, for example, due to a smaller inner diameter of the core design 190 when the holder 100 is attached to the core design 190, then, due to the non-perpendicular arrangement of the webs 113, a corresponding deformation and thus deflection of the webs 113, and consequently of the inner edge regions 112, can occur without excessive force. On the other hand, this pronounced elasticity, which is facilitated by the non-perpendicular arrangement of the webs 113, also provides a high degree of restoring force, ensuring a close mechanical contact between the inner edge region 112 and the corresponding area of ​​the core design 190.

[0043] In other embodiments not shown, if the geometry-related deformability and elasticity mediated by the non-perpendicularly intersecting webs 113 is not required and, for example, the elastic properties caused by the web material itself are sufficient, the webs 113 can also be provided in an arrangement that leads to an almost perpendicular intersecting of the webs 113 into the corresponding edge regions 111 and 112.

[0044] Furthermore, in other embodiments not shown, more complex structures can also be used in conjunction with the webs 113, for example, if corresponding cross braces between at least some of the webs 113 are required to adjust the degree of deformability and elasticity in a constructive manner and / or to achieve increased insulation strength, for example, when very thin wires are to be applied to the support 100.

[0045] In general, the respective distances between the webs 113 are typically chosen such that mechanical contact between a winding wire and the core 190 is virtually impossible. Thus, the holder 100 acts as an insulating material between a winding and the core 190, even when the corresponding sections 110, 130, 140 are provided with the webs 113.

[0046] In advantageous embodiments, as described in Fig. 1 As shown, one or more partitions 150 are provided, which can serve to appropriately subdivide the winding space available on the holder 100. For example, the respective sections 110, 130, and 140 are delimited at their respective ends by the partitions 150, wherein corresponding cutouts 151 or interruptions are provided in the respective partitions 150, which ensure that the general deformability of the holder 100 is maintained. The radial size of the cutouts 151 is designed such that reliable mechanical separation of winding wires between the sections is ensured despite the cutouts.

[0047] In other embodiments not shown, the notches 151 can also be designed to allow the passage of a winding wire from a certain height, without, however, allowing the winding wire to drop onto the core 190 in the areas 120. In this way, if necessary, corresponding winding sections to be applied to the sections 110, 130, 140 can be connected across the areas 120, while still maintaining a sufficient insulation distance to the core 190. For this purpose, the notch 151 can, for example, be designed to narrow towards the core 190, thus preventing contact with the core 190 for a given diameter of the winding wire.On the other hand, the cut 151 can additionally be selected such that the winding wire, when passing through the cut 151, lies below the upper edge of the cut 151, so that this upper edge of the partition 150 continues to define the highest point of the holder 100, thus ensuring that the holder 100 rests on a surface, for example a printed circuit board, without making contact with the winding wire. In particular, the partitions 150 can also be designed with regard to the number of winding levels such that the upper edges of the partitions 150 are reliably above the highest corresponding winding level.

[0048] In advantageous embodiments, the holder 100 is designed such that a corresponding core design, for example, core design 190, is appropriately received, at least largely enclosed, and mechanically held in conjunction with an identical holder 100A. That is to say, in this embodiment, the holder 100 is to be understood as a "half-shell" of an overall holder or an overall coil core, which, in conjunction with the identical holder 100A, which is appropriately oriented to the holder 100, receives the core design 190. Both holders 100 and 100A possess the corresponding properties with regard to deformation, elasticity, and the like, so that an adaptation to the contour of the core design 190 is ensured for both holders 100 and 100A.Due to the geometric design, as previously explained, a suitable restoring force is generated when the respective holders 100, 100A are deformed. Therefore, in advantageous embodiments, additional mechanical fixing of the holders 100, 100A to the core assembly 190 is unnecessary. This means that by using two identical holders 100, 100A, oriented appropriately to each other, the core assembly can be easily enclosed by pressing the two holders 100, 100A onto the core assembly 190. Due to the properties of the holders 100, 100A, this generates a sufficient holding force between each holder and the core assembly, allowing further processing, such as automatic winding, to proceed without additional measures.

[0049] In particular, the holders 100 and 100A together act as a reliable insulating layer on the core assembly 190, reliably preventing any mechanical and thus any potential electrical contact between a winding and the core assembly 190. Furthermore, regardless of any dimensional tolerances of the core assembly 190, the two holders 100 and 100A ensure a precise insulation distance between the core assembly and the winding, which is achieved solely through design measures, i.e., by creating an injection mold, and the like. Further processing for mechanical fixing and providing increased insulation strength in conjunction with compensating for potential tolerances is therefore no longer necessary for the core assembly 190, resulting in significant advantages over known techniques.

[0050] Fig. 2A Figure 1 shows a perspective view of an inductive component 280, which is based on a holder 200 that is adaptable, at least in some areas, to the contour of a core design 290. The holder or coil former 200 is constructed in all areas as described previously, particularly in conjunction with the holder 100. Fig. 1 , is explained. In particular, the core design, which is provided in the form of a toroidal core, is received and mechanically fixed by two supports, i.e., by support 200 and a further support 200A, as already explained. Thus, corresponding areas 220 are provided in the respective supports 200, 200A of the component 280, which in particular give elastic properties to the outer diameter of the supports 200, 200A, as also explained previously with reference to support 100. Although also in Fig. 2A three sections and thus three elastic areas 220 shown, as this applies to the embodiment which is in Fig. 1 as shown. However, it should be noted that in other embodiments fewer than three sections or more than three sections may be provided if this is advantageous due to the general geometry of the core embodiment 290 and / or due to certain requirements of the component 280.

[0051] Furthermore, in the respective areas bounded by the partitions 250, corresponding windings 270, 271, 272 are applied, which can be independent windings. In other cases, two or more windings can be connected together, whereby corresponding incisions 251 in the partitions 250 can be used to guide the winding wire into an adjacent section, which then advantageously connects the previously mentioned in conjunction with the Fig. 1 The structure shown is designed to ensure reliable insulation and mechanical fixation of the winding wire even in the area of ​​core design 290 not enclosed by the corresponding winding. In the advantageous embodiment shown in Fig. 2A As shown, the partitions 250 are designed such that their upper edges 252 form the "highest" point of the component 280, and also correspondingly the "lowest" point, so that it is possible to place it on a flat surface, such as a printed circuit board, without parts of the windings 270, 271, 272 touching the corresponding contact surface.

[0052] Fig. 2BFigure 280 schematically shows a side view of the component 280, in which the two holders 200 and 200A reliably enclose the core 290 in such a way that the corresponding windings, for example, the winding 270, can be applied without mechanical contact with the core 290. As can be clearly seen in the side view, the uppermost point 252 and the lowermost point 253 of the component 280, with the exception of possible contact areas for the winding ends, are defined by the partitions 251 and thus form a reliable mechanical stop for mounting on a printed circuit board, and the like.

[0053] The inductive component 280 can thus be assembled in a time-efficient manner using the holder 200, 200A, which have the properties previously explained in connection with the holder 100, since the holders 200, 200A firstly adapt to the contour of the core version 290 to compensate for dimensional tolerances and secondly, due to their elastic and spring-like properties, provide sufficient mechanical holding force, so that a compact mechanical unit consisting of holders 200, 200A and core version 290 is provided, which does not require any further processing steps to apply the windings 270, 271, 272.Particularly when winding with relatively thick winding wires, the high tensile forces required for winding do not damage the core design or the supports 200, 200A. Therefore, in addition to eliminating the need for further insulation measures, the automatic winding process itself can be carried out more robustly compared to conventional techniques. By appropriately dividing the supports 200, 200A into corresponding sections and providing partitions, a suitable electrical distribution and a high degree of dielectric strength are achieved in advantageous embodiments. This is because, for example, winding sections that exhibit a high voltage difference relative to each other are reliably limited by the partitions and further separated by the corresponding sections 220, which act as spring elements.

[0054] On the respective inner side, the areas 220 acting as spring elements are not connected to each other, so that the good deformability and thus adaptability to the contour of the core design 290 is still guaranteed there.

[0055] The inductive component 280 can be adapted in size and electrical properties to suit many applications. For example, in the embodiment with a toroidal core, the component has a diameter of approximately 30 mm to 70 mm, for example approximately 50 to 55 mm, to provide an inductance of approximately 0.5 to 5 mH at currents of approximately 1 to 10 A. Naturally, the shape-adaptive holder according to the invention and the inductive component produced therewith can also be adapted for other electrical applications where, for example, a different size, geometry, current, and the like are required. In particular, the holders of the present invention can be designed to accommodate and mechanically fix individual core parts, so that a desired core geometry with or without an air gap is formed as a whole.

Claims

1. Holder (100, 100A, 200, 200A) for receiving a core design (190, 290) which serves to guide a magnetic field, the holder being designed to be deformable in such a way that it can be adapted at least in some areas to the contour of the core design (190, 290) in order to compensate for dimensional tolerances, wherein the core design (190, 290) is a core with a closed geometry, and an electrical winding (270, 271, 272) can be applied to the holder (100, 100A, 200, 200A), and wherein the holder (100, 100A, 200, 200A) has, at least in sections, an inner peripheral edge portion (112) and an outer peripheral edge portion (111) opposite thereto, characterized in that the inner peripheral edge portion and the outer peripheral edge portion are connected to each other by webs (113) which do not extend in a straight line in order to provide a certain degree of elasticity for increasing the shape adaptability of the holder.

2. Holder (100, 100A, 200, 200A) according to claim 1, wherein the holder (100, 100A, 200, 200A) comprises at least one elastic region (120, 220).

3. Holder (100, 100A, 200, 200A) according to claim 2, wherein the at least one elastic region (120, 220) is designed as a spring element.

4. Holder (100, 100A, 200, 200A) according to claim 2 or 3, wherein the elastic region (120, 220) obtains its elastic property at least partly by an elasticity of a material component used in the elastic region (120, 220).

5. Holder according to any one of the preceding claims, wherein the holder (100, 100A, 200, 200A) is configured to receive the core design, wherein the core design has a toroidal geometry or a part of a toroidal geometry.

6. Holder (100, 100A, 200, 200A) according to one of the preceding claims, which is designed such that it exerts a holding force which results in a clamping effect between the holder (100, 100A, 200, 200A) and the core material during the at least partial adaptation to the contour of the core design (190, 290).

7. Holder (100, 10OA, 200, 200A) according to claim 1, wherein the webs (113) open non-rectangularly into the inner circumferential edge region and the outer circumferential edge region.

8. Holder (100, 100A, 200, 200A) according to any one of the preceding claims, comprising a first section (110, 130, 140) and a second section (110, 130, 140) arranged in series in a field-guiding direction of the core design (190, 290), and are connected by a region (120, 220) acting elastically along the field-guiding direction.

9. Holder (100, 10OA, 200, 200A) according to claim 8, wherein the region (120, 220) acting elastically in the field-guiding direction is provided only on an outer circumferential side of the holder (100, 100A, 200, 200A) in the closed geometry of the core design (190, 290).

10. Holder (100, 100A, 200, 200A) according to claim 8 or 9, wherein the first and / or the second section (110, 130, 140) are bounded and / or divided in the field-guiding direction by at least one separating wall (150, 250).

11. Inductive component (280), comprising a core design (290) for guiding a magnetic field, a holder (200, 200A) for receiving the core design (290) according to one of the preceding claims, and a winding (270, 271, 272) which extends along at least a part of the core design (290) in the field-guiding direction and encloses the holder (200, 200A) and the core design (290).

12. Inductive component according to claim 11, wherein the core design (290) has a closed geometry, in particular an annular core or oval core geometry or a part of an annular core or oval core geometry.

13. Inductive component according to claim 11 or 12, wherein a further holder according to one of claims 1 to 12 is provided which, in cooperation with the holder (200, 200A), holds the core embodiment (290), and wherein the winding encloses the holder (200, 200A) and the further holder.