WO2008083690A1 - Spulenkörper mit integrierter wicklung und induktives bauteil mit einem derartigen spulenkörper - Google Patents
Spulenkörper mit integrierter wicklung und induktives bauteil mit einem derartigen spulenkörper Download PDFInfo
- Publication number
- WO2008083690A1 WO2008083690A1 PCT/EP2006/012354 EP2006012354W WO2008083690A1 WO 2008083690 A1 WO2008083690 A1 WO 2008083690A1 EP 2006012354 W EP2006012354 W EP 2006012354W WO 2008083690 A1 WO2008083690 A1 WO 2008083690A1
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- WO
- WIPO (PCT)
- Prior art keywords
- winding
- bobbin
- conductor
- inductive component
- recess
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/02—Coils wound on non-magnetic supports, e.g. formers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/125—Other insulating structures; Insulating between coil and core, between different winding sections, around the coil
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
- H01F27/325—Coil bobbins
Definitions
- the present invention generally relates to inductive components, such as coils, transformers, and the like, and more particularly relates to bobbins for constructing such components, wherein the bobbin accommodates one or more windings.
- Inductive components and corresponding components for their production are required in many technical fields, since in particular the use of switched power supplies for various electrical consumers is becoming increasingly important.
- appropriate power supplies for specific applications a large number of sometimes contradictory requirements must be met as a rule.
- the corresponding inductive components such as coils, transformers, and the like are to be produced with the least possible volume of construction, but at the same time sufficient insulation distances are provided, especially when high-voltage applications are considered.
- inductive components can represent components which are complex to manufacture and process, since, for example, inductive components can hardly be integrated into corresponding integrated circuits. It is therefore of particular importance to be able to produce corresponding inductive components, such as coils, transformers, and the like in a manner that is as automated as possible using inexpensive raw materials, with appropriate specifications with regard to the size, the component tolerances and the insulation resistance to be observed.
- an inductive device for use as a storage choke, suppression choke, transformer, and the like comprises a suitably designed magnetic core, to which appropriate windings are suitably applied.
- a so-called bobbin is typically provided, which is made of a suitable insulating material and provides the corresponding winding space for the windings to be recorded in a defined manner, so that the wound bobbin are then connected to the core can, to finally form the inductive component.
- a corresponding ignition transformer in which a primary winding is driven with a small number of turns via a corresponding discharge capacitor, and wherein on a secondary winding then generates the correspondingly high ignition voltage and is delivered to the discharge lamp. Since in this case the primary winding is at a potential of a few hundred volts, a corresponding good insulation between the primary winding and the secondary winding is required in order to produce any undesirable voltage flashovers.
- the primary winding and the secondary winding must be arranged in confined spaces in a bobbin, so that in particular for the primary winding with the few turns usually a corresponding winding wire with a complex insulation be provided in order to ensure the required dielectric strength.
- the primary winding can be wound onto the secondary winding, in which case the insulation of the primary winding in cooperation with the insulation of the secondary winding for the required dielectric strength ensures.
- the bobbin can be wound with the primary winding, in which case, however, a corresponding surface topography is generated by the winding wire with the corresponding insulation, which may affect the winding process for applying the secondary winding.
- a corresponding winding wire is provided at least for the primary winding, which has a corresponding insulation in order to ensure the dielectric strength.
- Corresponding winding wires with an insulation designed for such high voltages are extremely cost-intensive components, so that a significant cost factor is, in particular, in the manufacture of the high-voltage-resistant conductor for the primary winding.
- the present invention relates to methods and components in which already conductor material of a winding for an inductive component in a bobbin partially integrated or can be introduced, so that the material of the bobbin can be used in an efficient manner as an insulating material with.
- a high reliability is achieved in terms of dielectric strength, while still providing a high degree of flexibility in the selection of appropriate conductor materials.
- a bobbin is provided, wherein the bobbin has a base body with an opening for receiving a core. Further, a recess is provided in the base body, which is designed to receive a conductor of at least part of a winding.
- the conductor of a winding can be at least partially embedded in the corresponding material of this bobbin, so that at least a part of the bobbin material serves as insulation and also the possibility is created, in further processing steps, a complete enclosure of the conductor with an insulating To ensure material.
- the recess has connection areas in order to receive a conductor for connecting individual turns of the winding.
- the recess is at least partially formed in a winding space for receiving a second winding.
- the recess in the winding space, d. H.
- a corresponding material surface of the bobbin, which is to receive the second winding can thus take place in a very compact way, integration of the first winding in the bobbin material without significantly reducing the space available for the second winding space is caused.
- the recess may be sized so that the corresponding conductor for the first winding is substantially completely buried in the bobbin material so that the second winding can be applied without significant interference with the first winding, with direct contact between the conductor of the first Winding the second winding can be avoided.
- the bobbin on a partition, which forms winding chambers for a further winding.
- the recess is at least partially formed in the partition wall.
- the partition has a corresponding design, so that a conductor inserted into the recess can be. For a good mechanical guidance and thus laying of the conductor is made possible, in addition, an improved insulation resistance is achieved by the material of the partition.
- the partition corresponding winding chambers are defined, for example, to divide the generated voltage of a high-voltage winding over several chambers away, and on the other hand defined by the partition and the corresponding recess course of the integrated Winding is specified, so that even when using conductor material without complex insulation or without insulating sufficient insulation against the other arranged in the winding chambers winding is given.
- the recess in the partition wall offers the possibility of attaching the integrated winding, which requires only a small number of turns, after the mechanical application of the further winding in the bobbin, through the recess in the partition even during the winding process itself a higher degree Reliability is guaranteed.
- two or more partitions are provided, which are each designed to receive a conductor of another part of the winding.
- the partitions have a guide which is designed to receive a connecting conductor for the electrical connection of the conductors in the two or more partitions.
- the individual partitions can also serve as receptacles for corresponding connecting wires which electrically connect individual windings to one another in a suitable manner.
- the recess in the partition along at least part of its circumference for receiving the conductor of the winding is formed so that the conductor laterial is limited by insulating material.
- the bobbin is designed for application to a non-rectilinear core.
- a high degree of insulation resistance can be achieved for any configuration of the core to be used, wherein variable core and thus coil body geometries can be realized in particular in applications with special specifications in terms of size without an impairment of the insulating behavior occurs.
- a bobbin having one or more turns of a first winding integrated at least partially in the material of the bobbin.
- 'Furthermore is a winding portion for receiving a second winding provided.
- any suitable and therefore also cost-effective conductor materials can be used in such a design of the bobbin, so that a high insulating strength and a low construction volume in conjunction with reduced Material costs are achieved.
- the bobbin of the present invention can be efficiently manufactured by suitable methods such as injection molding, and the like, and the incorporation of the conductor material into the bobbin material can be accomplished in a highly automated manner with high precision, so that low manufacturing costs associated with low component tolerances are achieved ,
- a conductor of the first winding is at least partially provided below a surface of the winding region which serves to receive the second winding.
- a very efficient coupling of the first and the second winding can be achieved, while still achieving a high degree of insulation resistance in conjunction with a low construction volume.
- the incorporation of the conductor into the material which simultaneously forms the surface for the winding space of the second winding may be such as to maintain a uniform surface topography so that the winding operation for the second winding is limited by the presence of the first winding within the second winding Spool material is not affected.
- the conductor for the first winding may be provided in the form of a band of suitably low material thickness, so that the required increase in the thickness of the bobbin material is only slight.
- a substantially self-supporting configuration of the first winding may be provided, which is arranged in a suitable injection mold, so that the winding and the bobbin can be produced in an automated manner.
- one or more partitions are provided to provide two or more winding chambers in the winding area. As already stated above, a very efficient subdivision of the resulting voltage drop can thus be achieved.
- the one or more windings are at least partially integrated in the one or more partitions. Also in this case, a high insulation resistance succeeds, the arrangement of the corresponding conductors in the partitions for a desired high coupling of the first and the second winding provides. Also in this case, with a very small increase in the thickness of the respective partitions in comparison with conventional components, a high degree of reliability and flexibility in the production be achieved. For example, almost any conductor materials can be integrated into the partitions, so that, depending on the application, extremely inexpensive materials can be used without affecting the operating behavior of the resulting component.
- connections are provided for the one or more turns that are not enclosed by material of the bobbin.
- Corresponding connections can thus be used to provide a suitable connection configuration of the individual windings after winding of the bobbin.
- corresponding connections in the form of pins protruding from the bobbin material may be provided, which then subsequently serve efficiently for wiring to connect the individual windings integrated in the bobbin material.
- connections between windings of the first winding are integrated into the material of the bobbin.
- an inductive component that has a first winding and a second winding that is galvanically isolated from the first winding. Furthermore, a bobbin is provided which has a recess, as described above, wherein at least a part of the first winding is arranged in the recess. Furthermore, a corresponding core is provided.
- the inductive component according to the present invention has a high degree of reliability with regard to component tolerances, insulation resistance, in conjunction with cost-effective production, since in particular there is a high degree of flexibility in the selection of the corresponding conductor materials.
- the inductive component can be produced efficiently, since the bobbin, in particular with regard to the first Winding, which is partially arranged in the recess, low manufacturing tolerances ensures high dielectric strength.
- the recess and the conductor of the first winding are dimensioned such that a predefined insulation gap between the first and the second winding is maintained.
- the provision of the recess and the introduction of the conductor into the recess can, at least to some extent, reduce the corresponding isolation distance by constructive measures, ie. H. be predetermined by the design and selection of the bobbin material. Since a minimum of insulation strength can be set effectively in particular by the recess and the winding parts arranged therein, a dependence on any winding tolerances when applying the second winding with respect to a required minimum insulating distance is not critical.
- an insulation of potting compound is further provided which encloses at least the bobbin with the first and the second winding.
- the second winding is designed for operation with a voltage of 20,000 volts or higher.
- the inductive component can be used for high voltage applications, while still maintaining the manufacturing, material cost, and performance advantages previously demonstrated.
- the inductive component is suitable as a transformer for the supply of electrical loads with a high voltage, as is the case for example in ignition transformers for discharge lamps.
- the core of the inductor is a non-linear core.
- an inductive component is provided with a bobbin, in which at least a part of a first winding is integrated in the bobbin material. Furthermore, the inductive component has a second winding applied to the coil former and a core.
- an insulating material such as potting material is further provided, which surrounds at least the bobbin with the first and the second winding.
- the potting compound is provided so that it also encloses the electrical connection lines.
- a method for producing an inductive component having at least two galvanically isolated windings.
- the method comprises attaching a first winding to a bobbin so that conductor material of the first winding is at least partially enclosed by material of the bobbin for generating defined insulation distances to a second winding. Furthermore, the second winding is applied to the bobbin and the bobbin is connected to a core.
- the attachment of the first winding comprises the encapsulation of at least a part of the first winding in the production of the bobbin.
- the first winding or parts thereof can be made of a suitable metallic material or other conductive material with some inherent stability, so that the corresponding conductor can be efficiently arranged and fixed in a corresponding injection mold.
- a substantially inherently stable conductor makes it possible to produce the winding independently of the bobbin, for example in a substantially automated process, in which case incorporation into the corresponding injection mold does not entail any significant additional expense compared to injection molding processes for producing conventional bobbins.
- corresponding flexible conductor materials can be introduced into the mold and fixed there, so that the shape of the corresponding winding can also be achieved by design measures, ie. H. through the injection mold, is determined.
- the attachment of the first winding comprises the provision of a recess in the bobbin, the insertion of a conductor into the recess and the filling of at least the recess with an insulating material.
- corresponding recesses may be provided during the injection molding process by using a corresponding mold, or corresponding recesses may be subsequently incorporated, so that a high degree of flexibility is ensured in the design of the corresponding recesses and thus the winding, wherein the actual manufacturing process can be kept unchanged for the bobbin.
- the filling of the recess takes place before the application of the second winding.
- the insulation of the first winding can be achieved in a reliable manner, if necessary, if necessary, the resulting surface topography can be suitably adapted.
- the recess is provided on the winding surface for the second winding, first a filling and also a leveling of the corresponding surface can take place before the second winding is applied.
- the filling of the recess after the application of the second winding is performed. This may, for example, take place in connection with a process for potting the entire inductive component, wherein the gap filling behavior of the potting process is exploited to provide the corresponding insulating material between the first and the second winding.
- FIG. 1a schematically shows a sectional view of a bobbin with integrated conductor material according to an illustrative embodiment
- Figures 1b and 1c show respective winding configurations for a winding integrated in a bobbin material according to further illustrative embodiments;
- Fig. 1d shows schematically a sectional view of a bobbin with recesses in the winding surface for receiving a winding, wherein the recesses are adapted for receiving a further winding according to further illustrative embodiments;
- Figures 1e and 1f show schematically sectional views of further bobbins in which respective partitions are provided to receive conductor material for a winding according to further illustrative embodiments;
- Fig. 2a schematically shows a perspective view of an inductive component with a bobbin, in which partitions have an integrated conductor material;
- Figures 2b to 2d are schematic sectional views of a partition of the device of Figure 2a;
- Fig. 3a shows in perspective an inductive component in which partitions of a bobbin have corresponding recesses for receiving Windungsabroughen according to further embodiments;
- Figures 3b to 3d show corresponding sectional views of the partitions with the turn sections
- FIGS. 4a and 4b schematically illustrate bobbin configurations in which non-linear cores may be used in accordance with further illustrative embodiments
- Fig. 4c schematically shows bobbin sections which may be assembled into the final shape of a bobbin according to further illustrative embodiments; and 5a to 5e show schematic sectional views during the manufacture of inductor bobbins according to illustrative embodiments of the present invention.
- FIG. 1a schematically shows a sectional view of a bobbin 100 according to an illustrative embodiment.
- the bobbin 100 is preferably made of a suitable insulating material, such as plastic material, and has a size and shape suitable for connection to a core adapted to the application.
- the bobbin 100 has a substantially elongated shape with a corresponding opening or bore 103 for receiving a rectilinear portion of a corresponding core.
- the bobbin 100 may have other shapes to be used in conjunction with non-linear cores, for example.
- the bobbin 100 further has a winding region 101, which is provided for example in the form of an insulating surface in order to receive a corresponding winding. Furthermore, a conductor material 102 is integrated in the insulating material of the coil body 100, wherein the conductor material 102 at least partially represents corresponding turns of a winding. In the illustrated embodiment, the conductor material 102 is provided in the form of a relatively broadband conductor material, so that in the longitudinal direction L, the available surface is used as possible, so as to make the conductivity of the conductor material 102 and the coupling sufficiently large.
- the material thickness of the conductor material 102 can remain relatively small, for example, from a few 100 micrometers to 1 mm or significantly higher, depending on the intended application.
- the material thickness or the thickness of the insulating material of the bobbin 100 which is shown as 101d, selected so that the conductor material 102 is completely enclosed by insulating material, so that in particular to the surface 101, a layer of insulating material of the bobbin 100 is present so that direct contact with another winding to be applied to the surface 101 is avoided.
- the position of the conductor material 102 Within the bobbin material ie, the distance of the conductor material 102 from the surface 101 can be selected so that even by the corresponding insulating material, a sufficient minimum isolation distance is achieved with respect to a yet applied winding. That is, the corresponding material thickness 101d as well as the position of the conductive material 102 in connection with the type of insulating material of the bobbin 100 can be suitably selected with regard to the operating voltages that occur, so that a sufficient dielectric strength is already achieved therewith. In particular, any suitable material can be used for the conductor material 102 in the manufacture of the bobbin 100, without the need for cost-intensive insulation, as is the case in conventional bobbins for high-voltage applications.
- the bobbin 100 can be made for example by an injection molding process, wherein the conductor material 102 is suitably fixed in the injection mold, so that by the corresponding positioning in the mold, the position of the material 102 in the Spool material 100 is substantially fixed, so that the desired insulating behavior is determined essentially by the structure of the injection mold and the injection molding process.
- suitable "intrinsically stable" configurations of conductor material 102 may be inserted into the mold so that a corresponding manufacturing process can be carried out without problems and with low tolerances.
- Fig. 1b shows schematically a configuration of the winding surface 101 of the bobbin 100, wherein the conductive material 102 is provided in the form of a corresponding ribbon winding.
- the winding formed by the conductor material 102 which is designated as 110, may be almost completely built into the bobbin material, wherein the incorporation of the conductor material 102 in the manner described above by means of an injection molding process can be accomplished, or it may two-stage machining of the bobbin 100 are applied, for example, in which a preform is produced having corresponding recesses, in which then the winding 110 is introduced, and wherein later in a further step, the final shape of the bobbin 100 produced by further application of insulating material becomes.
- the preform may be provided without recess and provided with the conductor material.
- the bobbin is completed by applying insulating material for wrapping the conductor 102 and leveling the surface 101.
- winding 110 schematically shows another exemplary design form for the winding 110, wherein the conductor material 102 is provided in the form of individual nearly parallel windings which are almost completely encompassing the bobbin and which are electrically connected to one another by corresponding connection lines 102a.
- winding 110 may be formed of a suitable sheet metal material so that winding 110 is substantially intrinsically stable so that it can be inserted into a suitable shape and positioned with suitable spacers to form bobbin 100 around winding 110 .
- the winding 110 as shown in FIG. 1c, may also be placed in corresponding recesses of a preform of the bobbin 100 and then covered with insulating material to give the final shape of the bobbin 100.
- the ribbon-like conductor materials 102 instead of the ribbon-like conductor materials 102, other forms of conductor materials may also be used, for example wire-shaped conductors, foils, any types of conductor plates, and the like.
- Fig. 1d shows the bobbin 100 according to further illustrative embodiments.
- one or more recesses 105 are provided in a base body 104 which accommodates the winding area for a winding providing surface 101, into which then the conductor material 102 can be introduced.
- the recesses 105 are designed such that the corresponding conductor material 102 is enclosed laterally or laterally by insulating material of the base body 104, wherein advantageously the recess 105 is sufficiently deep so that the conductor material 102 does not project beyond the surface 101. In this way, a direct contact with the winding to be applied to the surface 101 in a later stage of the production of an inductive component can be substantially avoided.
- the recess 105 may be provided as a substantially single indentation that extends suitably about the circumference of the body 104 to provide the geometric configuration of the post-conductor material 102 to define the resulting winding.
- substantially parallel recesses 105 may be provided which almost completely enclose the base body 104, wherein also further recesses may be provided to electrically connect the individual coil sections with each other.
- the recesses 105 can be realized during the production of the bobbin 100 already by providing a corresponding injection mold, or can also be subsequently incorporated in a suitable manner in the base body 104, so that in view of the shape of the conductor material 102 to be selected, for example as a band , as a wire, as a foil, etc. can maintain a high degree of flexibility, without the actual process for producing the bobbin 100 is influenced by the base body 104.
- Fig. 1e shows the bobbin 100 according to further illustrative embodiments, in which one or more partitions 106a, ..., 106d are provided, so that the winding area in the base 104 is divided into corresponding winding chambers 107a, 107e.
- the base 104 may comprise a conductor material, as described, for example, with reference to FIGS. 1a to 1c.
- the conductor material 102 is integrated in the partitions 106a,..., 106d, so that winding sections for a winding are formed by the respective partitions 106a,..., 106d.
- the individual sections of the conductor material 102 may have a corresponding connection region, which is not integrated in the material of the partition walls 106a, .... 106d, in order to enable an efficient electrical connection of the individual coil sections, as described in more detail below.
- the provision of the individual partition walls 106a,..., 106d is particularly advantageous with regard to high-voltage applications in which windings or winding sections are to be provided in the corresponding winding chamber 107a,..., 107d, which have a high potential difference to the conductor material 102 during the Have operation.
- the generated voltage of a secondary winding of a high voltage transformer can be efficiently distributed to the various developing chambers 107a, 107e due to the provision of the partition walls 106a, ..., 106d, whereby the material achieves sufficient withstand voltage to the conductor material 102 , And furthermore an efficient nested nesting of the two windings is ensured.
- the manufacture of the bobbin 100 as shown in Fig. 1e, the same apply Criteria as described above with respect to the embodiments of Figs. 1a to 1c.
- Partitions 106a 106d are installed during the manufacture of the bobbin 100, for example by positioning corresponding conductor sections in the injection mold.
- FIG. 1f shows another embodiment of the bobbin 100 in which the partitions 106a,..., 106c are formed to have the corresponding recesses 105.
- the bobbin 100 as shown in Fig. 1f, also have the features as previously described with reference to Figs. 1a to 1d. D. h.,
- the base 104 may additionally comprise integrated conductor material or have correspondingly formed recesses 105 in order to make room for more windings or winding sections.
- the recesses 105 at least in the
- Partitions 106a 106c provided so that, for example, after successful
- a minimum degree of insulation can be ensured, which is essentially independent of the previously performed production processes for applying the windings to the bobbin 100.
- two winding sections of the winding 210 are connected in parallel through the conductor structure and connected to corresponding two next winding sections connected in parallel.
- a distribution of the winding 210 results over a substantial part of the total length of the bobbin 200, whereby a good coupling of the first and the second winding 210 and 220 is achieved.
- the integration of a portion of the conductor material 202 into the bobbin material ensures sufficient withstand voltage between the first winding 210 and the second winding 220 without requiring expensive conductor materials having a special high voltage resistant insulation.
- the inductive component 250 can be produced in a very efficient manner, since, for example, the bobbin 200, which already contains winding sections of the winding 210 in the form of the conductor material 202, can be wound in a suitable manner, for example fully automatically, in order to obtain the winding 220.
- the connection structure 207 can then be applied by means of corresponding connection regions 202a of the conductor material 202, so that the desired electrical configuration of the winding 210 is achieved, again structurally maintaining a suitable insulation distance from the second winding 220.
- connection structure 207 After the attachment of the connection structure 207, a further processing step can follow, in which a suitable insulating material 213, for example a potting material, which is only partially shown in the figure, is provided, that at least the bobbin with the windings 210 and 220 and the connection structure 207 are enclosed by insulating material.
- FIG. 2b schematically shows a cross-sectional view of the device 250 through one of the partitions 206 with the conductor 202 and a connection region 202a.
- Fig. 2c shows the partition 206 with built-in conductor material 202 in a side sectional view.
- Fig. 2d shows the partition 206 in a corresponding frontal sectional view.
- the conductor material 202 As is clear from the sectional views 2b to 2d, the conductor material 202, with the exception of the terminal portions 202a, completely enclosed by insulating material of the bobbin 200, in this case of the material of the partition walls 206, so that a sufficient insulation distance with respect to the winding 220 or in relation to the core 260 is given.
- the conductor material 202 can be adjusted by the geometric dimensions of the partitions 206 and the material thickness of the conductor material 202, a corresponding isolation distance.
- FIG. 3 a shows a perspective view schematically of an inductive component 350 according to a further illustrative embodiment.
- the device 350 includes a core 360 in conjunction with a bobbin 300 having a first winding 310 and a second winding 320.
- the second winding 320 may be a multi-turn winding housed in respective winding chambers formed by respective partitions 306 in the bobbin 300.
- the winding 310 is at least partially laid in corresponding recesses 305, which may be provided in the illustrated embodiment in the partitions 306 and, if necessary, in one or both end surfaces 309.
- the recesses 305 are formed such that the conductor material 302 is bounded laterally or laterally by insulating material of the partition walls 306, wherein advantageously also the depth of the recesses 305 is dimensioned such that the conductor material 302 largely sinks into the recesses 305 is.
- corresponding recesses 308 are provided in which the conductor material 302 or other suitable connection conductors are guided so that the desired electrical configuration of the winding 310 is achieved.
- two adjacent winding sections are in each case electrically connected in parallel and suitably connected to corresponding two adjacent winding sections, so that overall the winding 310 is constructed from three series-connected double windings.
- the process of applying the winding 310 can be performed in a very precise manner, since the position of the individual windings is predetermined by the structural design of the partitions 306 and the recesses 305.
- the conductive material 302 without any insulation is to be provided, in which case subsequently insulating material is added to the component 350 in order to completely enclose at least the windings 310 and 320 with insulating material, which can be achieved for example by casting.
- the inductive components 250, 350 can be used in particular as components for high-voltage applications, wherein a high insulation strength between the windings 210, 220 and 310 and 320 is achieved.
- the inductive components 250, 350 are used as transformers in which a voltage of 20,000 volts or significantly more occurs on the secondary or primary side.
- the inductive components 250, 350 can be used in the form of ignition transformers for discharge lamps, as they are provided for example for the operation of xenon lights.
- FIG. 4a shows a bobbin 400 with integrated conductor material 402 or with correspondingly incorporated recesses (not shown), as previously described with reference to FIGS. 1 to 3, wherein the bobbin 400 is suitable for use with a non-linear core 460 is trained.
- the bobbin 400 may have a corresponding configuration to receive an arcuate core.
- the bobbin 400 which comprises, for example, a first bobbin part 400a and a second bobbin part 400b.
- the two bobbin parts 400a, 400b can vary in size and Differentiate design depending on the application considered.
- the spool 400a, 40Ob 1 can each having a corresponding conductor material 402 and / or corresponding recesses formed for receiving a conductor material, so that they are provided on a respective leg of an angled core, vary the dimensions of the individual legs can.
- the advantages set forth above with regard to the dielectric strength, the better component tolerances, the advantages in the production, etc., can be achieved individually for both parts 400a, 400b, so that overall a high degree of flexibility in the Design of a corresponding inductive component results.
- FIG. 4c schematically shows a further variant of the bobbin 400 in a modular design.
- the parts 400a, 400b may be coupled together as needed via corresponding connection structures 411, 412, so that overall the desired configuration of the bobbin 400 results.
- different versions of the parts 400a, 400b z. Example be provided with regard to the number of integrated turns or recesses, so that overall a high degree of flexibility in the compilation of the final properties of the body 400 and a corresponding inductive component results, the dimensions of the overall bobbin 400 can be maintained ,
- a plurality of elements 400a, 400b may be suitably assembled so that, for example, the overall length of the bobbin 400 may be varied.
- the bobbin 400 owing to the modular design of the bobbin 400, it is possible to individually wind the individual parts 400a, 400b and then to produce an overall configuration by correspondingly joining the individual parts 400a, 400b. In this way, the winding process can be efficiently automated, with corresponding local differences in the bobbin 400, for example with regard to the number of winding layers, the length of the individual winding sections, and the like can be set more flexible, so that respective specifications for the bobbin parts 400a, 400b can be selected.
- bobbin 500 in which a winding region 501 for receiving a winding is formed by corresponding end surfaces 509.
- bobbin 500 is merely illustrative in nature and that in other embodiments corresponding partitions may be provided to divide winding region 501 into a plurality of corresponding winding chambers.
- an opening or a bore 503 is provided to enclose a Kemmaterial, as required for the construction of an inductive component.
- the bobbin 500 includes corresponding recesses 505, which serve to receive conductive material for producing a winding.
- the recesses 505 are sized in view of the number of turns required as well as the type and shape of the conductive material.
- the bobbin 500 as shown in Fig. 5a, can be made by providing a corresponding injection mold in which respective projections for the recesses 505 are provided. In other cases, the bobbin 500 may first be manufactured without the recesses 505, and subsequently the recesses 505 may be formed in number and size by post-processing such as milling, etc.
- FIG. 5 b shows a bobbin 500 in two embodiments after a corresponding suitable conductor material 502 has been inserted into the recesses 505.
- the conductive material 502 is completely buried in the recesses 505, while in the right part of FIG. 5b, the conductive material 502 can lead to a non-planar surface topography.
- Fig. 5c shows the bobbin 500 at a more advanced stage of manufacture, with the conductor material 502 completely covered with an insulating material 513, regardless of the particular surface topography.
- the insulating material 513 may be any suitable potting material suitably applied to the bobbin 500 after the conductive material 513 is inserted in the corresponding recesses 505. Thereafter, the deposited winding or conductive material 513 may be overmolded with a suitable insulating material so that the conductive material 513 is completely enclosed and, if desired, a flat topography is obtained, to which then another winding can be efficiently applied.
- the conductive material 502 may be first applied when a corresponding mechanical fixation of the conductive material 502 through the recesses 505 is not required. Then, the material 513 may then be applied so that the correspondingly pronounced surface topography is balanced and the conductive material 502 is completely surrounded by the insulating material 513. After curing of the material 513, the bobbin 500 is thus available for further processing.
- FIG. 5d shows the bobbin 500, which now has the conductive material 502 in an integrated manner, wherein corresponding terminal regions 502a may also be integrated in the bobbin material.
- a new surface 501a is formed, which is suitable for receiving a further winding, wherein by the previously applied material thickness in conjunction with the possibly provided recesses 505, a corresponding isolation distance to the newly applied winding is predetermined.
- the bobbin 500 can be treated after winding with a corresponding potting material, or the bobbin 500 can be treated after a corresponding assembly of an inductive component or an assembly in which the inductive component is used, with potting material, in which case corresponding gaps 502d reliably filled and thus be further improved in their insulating behavior.
- a conductive material can be integrated into a bobbin in a very efficient manner, with a high degree of flexibility being surrounded in particular with regard to the selection of the conductive material and the manufacturing processes, in conjunction with reduced material costs and improved process tolerance, distinct advantages over the conventional ones Processes as described above can be obtained.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Insulating Of Coils (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112006003946.6T DE112006003946B4 (de) | 2006-12-20 | 2006-12-20 | Induktives Bauteil mit einem Spulenkörper mit integrierter Wicklung |
| PCT/EP2006/012354 WO2008083690A1 (de) | 2006-12-20 | 2006-12-20 | Spulenkörper mit integrierter wicklung und induktives bauteil mit einem derartigen spulenkörper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2006/012354 WO2008083690A1 (de) | 2006-12-20 | 2006-12-20 | Spulenkörper mit integrierter wicklung und induktives bauteil mit einem derartigen spulenkörper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008083690A1 true WO2008083690A1 (de) | 2008-07-17 |
Family
ID=38091718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2006/012354 Ceased WO2008083690A1 (de) | 2006-12-20 | 2006-12-20 | Spulenkörper mit integrierter wicklung und induktives bauteil mit einem derartigen spulenkörper |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE112006003946B4 (de) |
| WO (1) | WO2008083690A1 (de) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009104113A1 (en) * | 2008-02-20 | 2009-08-27 | Philips Intellectual Property & Standards Gmbh | High voltage transformer with space-saving primary windings |
| WO2013057266A1 (de) * | 2011-10-21 | 2013-04-25 | SUMIDA Components & Modules GmbH | Hochspannungstransformator und bewickelter spulenkörper für zündmodule mit anschlussstiften als bestandteil der primärwicklung |
| DE102007063690B4 (de) * | 2007-05-31 | 2017-10-26 | SUMIDA Components & Modules GmbH | Zündmodul |
| CN110957132A (zh) * | 2019-12-23 | 2020-04-03 | 梁昌爱 | 一种油浸式变压器引线组件制造装置 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017003201B4 (de) * | 2017-04-01 | 2023-11-09 | Thomas Magnete Gmbh | Elektromagnet |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1558090A (en) * | 1924-01-23 | 1925-10-20 | Austin A Howard | Electrical transformer |
| US4975671A (en) * | 1988-08-31 | 1990-12-04 | Apple Computer, Inc. | Transformer for use with surface mounting technology |
| JP2006147885A (ja) * | 2004-11-19 | 2006-06-08 | Minebea Co Ltd | 高圧トランス |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2949591A (en) * | 1955-10-10 | 1960-08-16 | United Transformer Corp | Miniature inductive devices |
| US3046509A (en) * | 1959-11-09 | 1962-07-24 | Lindberg Eng Co | Induction coil with split flexible insulating flange |
| GB1546374A (en) * | 1975-04-23 | 1979-05-23 | Plessey Co Ltd | Bobbins for electric coil assemblies |
| US4063207A (en) * | 1977-01-31 | 1977-12-13 | Litton Systems, Inc. | Coil structure |
| DE2935109A1 (de) * | 1978-09-01 | 1980-03-13 | Sony Corp | Spulenkoerper fuer einen transformator |
| US4380748A (en) * | 1979-12-21 | 1983-04-19 | John Hill | Bobbins for electrical coils |
| GB8309558D0 (en) * | 1983-04-08 | 1983-05-11 | Gen Electric Co Plc | Electrical windings |
| US4701735A (en) * | 1986-12-11 | 1987-10-20 | Standex Electronics (U.K.) Limited | Bobbins for electrical coils and method of manufacturing electrical coils therefrom |
| DE3801334A1 (de) * | 1988-01-19 | 1989-07-27 | Philips Patentverwaltung | Spulenkoerper fuer einen hochspannungstransformator |
| US5332989A (en) * | 1992-08-17 | 1994-07-26 | Ching Chiu S | Horizontal compartmentized square bobbin of high-voltage transformer |
| US5523734A (en) * | 1994-11-18 | 1996-06-04 | Cooper Industries | Turn-to-turn grooved insulating tube and transformer including same |
| JPH11307373A (ja) * | 1998-04-23 | 1999-11-05 | Hanshin Electric Co Ltd | 高電圧発生コイル |
| DE202005007484U1 (de) * | 2005-05-11 | 2006-09-21 | Vogt Electronic Components Gmbh | Zündtransformator und Leuchtensockel für eine Entladungsleuchte |
-
2006
- 2006-12-20 WO PCT/EP2006/012354 patent/WO2008083690A1/de not_active Ceased
- 2006-12-20 DE DE112006003946.6T patent/DE112006003946B4/de not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1558090A (en) * | 1924-01-23 | 1925-10-20 | Austin A Howard | Electrical transformer |
| US4975671A (en) * | 1988-08-31 | 1990-12-04 | Apple Computer, Inc. | Transformer for use with surface mounting technology |
| JP2006147885A (ja) * | 2004-11-19 | 2006-06-08 | Minebea Co Ltd | 高圧トランス |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007063690B4 (de) * | 2007-05-31 | 2017-10-26 | SUMIDA Components & Modules GmbH | Zündmodul |
| WO2009104113A1 (en) * | 2008-02-20 | 2009-08-27 | Philips Intellectual Property & Standards Gmbh | High voltage transformer with space-saving primary windings |
| JP2011512686A (ja) * | 2008-02-20 | 2011-04-21 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 省スペースな一次巻線を有する高圧変圧器 |
| US8193891B2 (en) | 2008-02-20 | 2012-06-05 | Koninklijke Philips Electronics N.V. | High voltage transformer with space-saving primary windings |
| WO2013057266A1 (de) * | 2011-10-21 | 2013-04-25 | SUMIDA Components & Modules GmbH | Hochspannungstransformator und bewickelter spulenkörper für zündmodule mit anschlussstiften als bestandteil der primärwicklung |
| CN110957132A (zh) * | 2019-12-23 | 2020-04-03 | 梁昌爱 | 一种油浸式变压器引线组件制造装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112006003946A5 (de) | 2009-05-28 |
| DE112006003946B4 (de) | 2017-10-26 |
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