EP2095382B1 - Transformateur avec enroulement de tôle de branchement - Google Patents

Transformateur avec enroulement de tôle de branchement Download PDF

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Publication number
EP2095382B1
EP2095382B1 EP07802183A EP07802183A EP2095382B1 EP 2095382 B1 EP2095382 B1 EP 2095382B1 EP 07802183 A EP07802183 A EP 07802183A EP 07802183 A EP07802183 A EP 07802183A EP 2095382 B1 EP2095382 B1 EP 2095382B1
Authority
EP
European Patent Office
Prior art keywords
plug
transformer
plates
coil
winding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP07802183A
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German (de)
English (en)
Other versions
EP2095382A1 (fr
Inventor
Norbert Ginglseder
Herbert Jungwirth
Christian Schmid
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vogt Electronic Components GmbH
Original Assignee
Vogt Electronic Components GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vogt Electronic Components GmbH filed Critical Vogt Electronic Components GmbH
Publication of EP2095382A1 publication Critical patent/EP2095382A1/fr
Application granted granted Critical
Publication of EP2095382B1 publication Critical patent/EP2095382B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H01F27/2847—Sheets; Strips
    • H01F27/2852—Construction of conductive connections, of leads
    • 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 invention relates to an inductive component, in particular a planar transformer, with a tab winding.
  • transformers which are intended for use at high temperatures, furthermore often have insulating moldings as additional insulation.
  • Another disadvantage in the production of such transformers is that additional manufacturing steps are required by the insulating moldings, thereby increasing the manufacturing cost.
  • Another area for the transformers described herein includes photovoltaic inverters employing a voltage-adapting transformer, with the focus of the kW power range. Due to the limited efficiency, not all of the energy emitted by the generator is fed into the grid, but a part of it is converted into heat in the inverter and in particular in the transformer. A higher power loss leads to a reduction in performance.
  • the publication US 5,010,314 A discloses a planar transformer whose coils are formed by flat components, which may be circuit boards or metal plates.
  • the transformer further includes a bobbin formed by two composite components, each having a rectangular shape and side surfaces perpendicular to the top and bottom surfaces of the component.
  • the parts of the bobbin have in the middle of an opening surrounding walls. When the parts of the bobbin are assembled, the walls surround the middle leg of the magnetic core.
  • the publication WO 03/030189 A discloses a planar transformer having a bobbin enclosing a portion of a ferrite core and supporting at least one secondary coil.
  • Each of the secondary coils carried by the bobbin is formed by at least one open on one side winding plate, which can be plugged onto the bobbin and connected to a circuit board.
  • the device according to the invention according to claim 1 can be formed in particular a compact, reliable and heat-conducting component.
  • the baffles form a rigid winding, which can be adapted to the bobbin, whereby a very accurate production with low tolerances is possible. When assembling the bobbin and the baffles this accuracy is maintained by the thus formed stability of the component. Thus, advantageously required creepage distances and clearances can be specified exactly.
  • the distances between the turns of the plug-in plate winding allow the reception of the second coil, so that the alternating primary / secondary coil arrangement
  • the transformer of the present invention has low power dissipation, high efficiency, and high withstand voltage.
  • the bobbin has a greater depth than the plug-in sheet winding.
  • the upper bobbin sections is a well-defined separation of the primary coil of the secondary coil and other components to ensure a dielectric strength or required creepage distances and clearances according to standard. This insulation ensures high dielectric strength, making it easy to use for high-voltage transformers.
  • the bobbin and the baffle winding each have a coordinated connecting element. These connecting elements are used for wireless connection of a coil with the bobbin, whereby a mechanical fixation and a compact design is ensured.
  • the bobbin is produced by a casting process. In a further embodiment, the bobbin is produced by means of an encapsulation. These manufacturing methods allow a relatively low cost production, since these bobbins are manufacturable as standard and ensures independence in terms of the production facility and the manufacturer. By the use of the method, a high reproducibility is given and consequently a cost-effective production possible, whereby a small range of variation of the component properties is achieved.
  • the plug-in plate winding comprises individual plug-in plates which have an open end.
  • These baffles are preferably made of copper and are stamped, whereby a simple and inexpensive production is possible.
  • the plug-in plate winding is used to produce transformers with low overall height and high power density.
  • the baffles are also manufactured as standard with low tolerances and thus inexpensive to manufacture.
  • the baffles on the outer periphery of at least one side leg a projection for an electrical connection with a connecting element for plug-in sheets. It is also possible to form recesses for the same purpose instead of protrusions.
  • the plug-in plates are formed on at least one inner side of the side leg, with an engagement element which creates a locking connection with at least one latching element of the bobbin.
  • the at least one latching element of the bobbin may be formed on one of the tab sheet winding facing surface to ensure a connection with the at least one engagement element.
  • the locking element is formed elastically deformable.
  • This embodiment enables a simple and inexpensive assembly of the transformer components.
  • Another advantage is that the connector simultaneously serves the mechanical fixation, so that an additional gluing, Klammem, screwing or the like is not required.
  • At least two plug-in metal sheets are connected to one another with the aid of the connecting element for plug-in sheets.
  • These connectors may be soldered or welded or other types of electrical connection may be used.
  • the inductive component is encapsulated or encapsulated with plastic.
  • plastic This ensures, among other things, an additional improvement of the dielectric strength and the creepage distances and clearances.
  • This embodiment ensures the formation of a compact, reliable device. Due to the complete embedment in the potting compound, the individual transformer components are fixed and stabilized. By using an encapsulation either the protruding ends of the bobbin can be reduced or the baffle winding can be made wider, and thus increase the performance.
  • the injection molding itself proves to be particularly simple, since the copper is already fixed by the bobbin, which is preferably made of plastic.
  • Another advantage of the extrusion coating of the transformer according to the invention is the protection against moisture, temperature fluctuations and corrosion. Furthermore, the use of an injection molding process is cheaper than the production of a housing, and also saves space due to the often very small space designed.
  • the embodiment according to claim 13 is preferably used for generating small gear ratios.
  • the two coils are arranged alternately, whereby the stray inductance is reduced and higher operating frequencies during operation of the transformer are possible.
  • this embodiment realizes a compact, low-profile, inductive component.
  • the use of a tab coil has the advantage of high current efficiency, with nesting resulting in low electrical and magnetic losses.
  • a transformer is provided which responds to high temperatures or temperature fluctuations little critical and is good heat conducting.
  • the transformer of the present invention has a low power dissipation, a high efficiency, and a design-related, reproducible withstand voltage.
  • the pockets of the bobbin have a greater depth than the dummy plate winding.
  • the geometry of the bobbin or the pockets ensures good insulation, which ensures a high dielectric strength and can be dispensed with an additional insulation.
  • the deeper pockets provide a well-defined separation of the primary and secondary coils as well as other components, making it possible to constructively define creepage and airway defined. This proves to be advantageous, in particular with regard to the use of an E-core, since the coil body has no inner lateral surface enclosing the E-core, as a result of which voltage breakdowns could occur over short air gaps. By forming the deep pockets, the occurrence of voltage breakdowns can be reduced.
  • the plug-in windings of the primary coil and / or the secondary coil comprise individual windings, which are connected to each other in sections, so that the respective coils have at least two windings.
  • individual turns of the winding are electrically contacted at least in sections. The nesting of at least two turns improves the coupling under the windings. Since these sheets are also preferably manufacturable by means of a stamping process, they can be produced in series, and thus cost-effectively.
  • the plug-in plates on the outer circumference of at least one side leg on a projection for an electrical connection with a connecting element for plug-in plates may have a recess instead of a projection on the outer periphery of at least one side leg.
  • the baffles may be formed on at least one outer side of the side leg with an engagement member which ensures a connection with at least one locking element of the bobbin or the baffles have at least one end of a side leg a projection or a recess for electrical connection with the connecting element for mounting plates on.
  • the at least one latching element of the bobbin may be formed on a jacket surface facing the plug-in sheet winding in order to ensure a connection with the at least one engagement element, wherein the at least one latching element may be formed elastically deformable.
  • connection points of the inductive component are encapsulated or encapsulated with plastics. This results in the same advantages mentioned above.
  • a centering means is formed at one end of the bobbin and at one end of the baffles to ensure easier insertion of the lancing plates into the bobbin with small tolerances.
  • Fig. 1a shows a bobbin 101 of a transformer 100, which is designed to receive a first coil 102 and a second coil 103.
  • the bobbin 101 is preferably made of plastic, whereby a simple and inexpensive production is ensured.
  • the bobbin 101 is formed in the embodiment shown substantially rectangular and comprises parallel running walls 106 which are arranged in a stacked manner. For example, results for a supplied power of 1 kW in such a construction volume 10-50 cm 3 for the coil body, preferably 15 - 30 cm 3, and in particular about 3x3x2 cm 3.
  • the bobbin 101 has in the middle of an opening which is bounded by the lateral surfaces 111 to a magnetic E-core (112 in Fig.
  • the coil 102 includes a tab coil 104 formed of one or more turns, the coils being arranged in a stacked manner. Between each two turns of the plug-in plate winding 104, a distance for receiving the second coil 103 is formed.
  • the coil 103 comprises a winding, which may comprise a coil wire or a coil strand, wherein the number of turns can be reduced or increased as required.
  • the bobbin 101 and the plug-in plate winding 104 on a coordinated fastener are provided with the connecting element in the form of a bridge 107, wherein the bridge 107 is fixedly connected to the two walls 106.
  • the bridge 107 serves as Einschiebschutz the bobbin 101 to prevent confusion when plugging the Steckblechwicklung 104 and the bobbin 101 pluggable.
  • the bridge 107 is attached to the sidewalls between the two parallel walls 106.
  • the bridge 107 may also be detachably connected to the walls 106.
  • the bridge 107 offers the advantage of a fail-safe construction, and that the bobbin 101 and the plug-in plate winding 104 can be connected to each other without additional connecting material, whereby it is possible to optimize the desired compact design.
  • the tab 104 includes individual sheets having an open end. Preferably, these sheets are made of copper.
  • the sheets of the tab 104 are generally stamped for cost reasons, resulting in the additional advantage of a standard production. Due to the high reproducibility, this also results in the advantage of independence with regard to the production facility and the manufacturer. Since the bobbin 101 is also produced in a cost-effective and rapid manner by means of an injection molding process, the bobbin 101 has the same advantages.
  • the bobbin 101 is formed with a greater depth than the tab 104 winding. This geometry of the bobbin 101 ensures good insulation, so that additional insulation materials can be omitted. The formed depth provides good separation of the first and second coils as well as other components to define defined creepage distances and clearances. Furthermore, in this embodiment, in each case two plates of the plug-in plate winding 104 are interconnected by means of conductive connecting elements for the plug-in plates 108. In this embodiment, the connecting elements for the plug-in plates 108 are attached to the rear end and to the side of the bobbin 101, this flexible geometry advantageously serving to that the transformer 100 can be used in small and nested installation spaces.
  • the protrusions or depressions 110 formed on the plug-in plate winding 104 serve for the electrical connection with the connecting elements for the plug-in plates 108.
  • the protrusions or depressions 110 can also be plugged, glued, clamped, welded or screwed to the connecting elements for the plug-in plates 108.
  • the upper end of the connectors for the baffles 108 serves as a terminal 109, which is provided with areas by means of which, for example, a simpler attachment of a conductor wire is made possible.
  • Fig. 1b shows a three-dimensional view of the transformer 100 with the bobbin 101, which is connected to the magnetic core 112 such that the bobbin surrounds the center leg of the core 112.
  • the magnetic core 112 is preferably encapsulated or cast together after insertion into the transformer 100 together with the bobbin 101. It is also possible to provide the spool alone with wrapping material. This enables an improved hermetic coating by the encapsulation or the encapsulation and in particular an improved seal against the ingress of moisture.
  • the wrapping material of the transformer 100 serves as protection against temperature fluctuations and corrosion and ensures better dielectric strength. Due to the complete embedding in the wrapping material, the individual transformer components are fixed and stabilized.
  • the Fig. 2a to 2d show various embodiments for connection to the bridge 107 and / or the connector for baffles 108.
  • the Fig. 2a a schematic representation of a plug-in plate 200 having an open end, wherein the plug-in plates on the outer circumference of a side leg 202 have at least one projection or a recess 220.
  • This embodiment is used for electrical connection with the connecting element for plug-in plates 108th Die
  • Fig. 2b shows a schematic representation of the plug-in plate 200 with an open end, wherein the baffles 200 have on at least one end of a side leg 202 a projection or a recess 230 for electrical connection to the connection element for baffles 108, and the Fig. 2c FIG.
  • FIG. 12 shows a schematic representation of the plug-in plate 200 with an open end, wherein a projection or a recess is formed at one end of a side leg 202, and another projection or a recess on the outside of the side leg 202. Also in the embodiment of FIG Fig. 2c possible to attach the attachment of a projection or a depression on the inside of the side leg 202. This training serves in particular the connection with the connecting element for plug-in plates 108, whereby advantageously a confusion of the insertion position of the plug-in plates can be avoided.
  • the Fig. 2d shows a schematic representation of the plug-in plate 200, wherein the plug-in plate 200 is formed on at least one inner side or at least one outer side of the side leg with an engagement element 240.
  • the bobbin 101 has at least one latching element 340 in the lateral surface 111 facing the plug-in plate winding 104 Fig. 3a on to connect.
  • the locking element 340 is formed elastically formable on the bobbin 101. This embodiment ensures a simple and inexpensive assembly of the transformer components. Another advantage is that the connector of the Figure 2d the mechanical fixation is used.
  • FIG. 3a shows a further embodiment of the present invention.
  • a transformer 300 comprises a bobbin 301 for receiving a primary coil 302 and a secondary coil 303, wherein the primary coil 302 and the secondary coil 303 have a plug-in coil 304 comprising one or more windings.
  • the plug-in coil 304 comprising one or more windings.
  • it is formed with a plurality of pockets 305 for receiving the tab windings 304 stacked on top of each other so that the pockets 305 form a wall 306 between the turns that are parallel extends to the plug-in plate winding 304.
  • the pockets 305 of the bobbin 301 of the second embodiment also have a greater depth than the tab coil 304.
  • the separation of the primary coil 302 from the secondary coil 303 and from other components ensures a defined creepage and clearance distances.
  • the coil former 301 is preferably made of plastic, whereby a simple and inexpensive production is ensured.
  • the bobbin 301 is substantially rectangular in shape and includes parallel-running walls 306 arranged in a stacked manner. For example, results for a supplied power of 2kW in about a physical volume from 30 to 100 cm 3 for the coil body, preferably 40 - 50 cm 3, and in particular about 4x4x3 cm 3.
  • the bobbin 301 has in the middle of an opening which is bounded by no lateral surfaces 111 to a magnetic core (312 in Fig. 3b ).
  • the geometry of the bobbin 301 ensures a very good insulation, so that additional insulation materials can be omitted.
  • the bobbin 301 is, as in the previous embodiment, manufactured by means of an injection molding or encapsulation method, and consequently has the same advantages as described above.
  • the plug-in windings 304 of the primary coil 302 and the secondary coil 303 are formed from individual plug-in plates, which have an open end.
  • the tab windings 304 of the primary coil 302 and / or the secondary coil 303 may comprise individual turns connected in sections, such that the respective coils have at least two turns.
  • individual turns of the winding are electrically contacted at least in sections.
  • the individual plug-in plates and the sections of interconnected plug-in plates are preferably made of copper.
  • FIG. 2a to 2c shown embodiments for an electrical connection to the connector plate 308 can also be applied to the second embodiment of the invention. That's how it shows Fig. 2a a schematic representation of a plug-in plate 200 having an open end, wherein the plug-in plates 200 on the inner circumference of at least one side legs 202 has a projection or recess 220 for electrical connection with the connecting element for plug-in panels 308.
  • the Fig. 2b shows a schematic representation of the plug-in plate 200 having an open end, wherein the plug-in plates 200 at least one end of a side leg 202 has a projection or a recess 230 for have an electrical connection with the connecting element of the plug-in plate 308.
  • the plug-in plate 200 is also possible to form the plug-in plate 200 with a projection or recess at one end of a side leg 202 and a further projection or recess on the inside of the side leg 202 (not shown).
  • This training is used in particular for electrical connection with the connecting elements for plug-in panels 308th Die
  • Fig. 2d shows a schematic representation of the plug-in plate 200, wherein the plug-in plate 200 is formed on at least one outer side of the side leg, in the vicinity of the connection point, with an engagement element 240.
  • the bobbin 301 has at least one latching element 340 on a lateral surface 311 facing the plug-in plate winding 304 (see FIG Fig. 3a ) to allow a connection.
  • the locking element 340 formed on the bobbin 301 elastically formable.
  • one or more sheets of the plug-in plate winding 304 are interconnected by means of connecting elements for the plug-in plates 308.
  • a centering means (not shown) may be formed at one end of the bobbin and at one end of the baffles to ensure easier insertion of the lancing plates into the bobbin with small tolerances.
  • FIG. 12 shows a three-dimensional view of the transformer 300 having a magnetic core 312 connected to the bobbin 301 such that the bobbin 301 engages the center leg of the core 312.
  • the bobbin 301 prior to insertion of the core 312, the bobbin 301 is injection-molded or encapsulated with a suitable encapsulant by means of an injection molding process.
  • the deeper pockets can be made smaller, or the plug-in coil 304 increases to increase the power density.
  • the above-mentioned enveloping methods provide protection against moisture, temperature variations and corrosion as previously described.
  • Fig. 3c shows a further embodiment of the present invention, in which the connecting elements for the baffles 308 of the transformer 300 are encapsulated with plastic, and only the terminal 309 remains free.
  • This embodiment ensures the formation of a compact, reliable device. Because of the complete embedding of the connecting elements for the baffles 308 in the wrapping material, the individual transformer components are fixed and stabilized.
  • the wrapping process itself proves to be particularly simple, since the copper is already fixed by the bobbin, which is preferably made of plastic. Furthermore, the use of this wrapping method is cheaper than the production of a housing, and also space-saving due to the often very small design space, because it is possible to deform the connections 309 depending on the size and shape of the space.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulating Of Coils (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Coils Or Transformers For Communication (AREA)

Claims (15)

  1. Transformateur (100) qui comprend un corps de bobines (101) pour recevoir une première bobine (102) et une seconde bobine (103), étant précisé
    que l'une au moins des bobines comporte un enroulement feuilleté enfichable (104) ;
    et que l'enroulement feuilleté enfichable comprend une ou plusieurs spires qui sont disposées de manière empilée, au moins deux espaces entre les spires dudit enroulement étant conçus pour recevoir la seconde bobine ;
    caractérisé en ce que le corps de bobines et l'enroulement feuilleté enfichable comportent un élément de liaison adapté, étant précisé que deux parois parallèles (106) sont pourvues de l'élément de liaison en forme de pont (107) qui empêche une confusion lors de la liaison enfichable entre ledit enroulement et le corps de bobines.
  2. Transformateur selon la revendication 1, étant précisé que le corps de bobines présente une plus grande épaisseur que l'enroulement feuilleté enfichable.
  3. Transformateur selon la revendication 1, étant précisé que le pont est installé au niveau des parois latérales entre les deux parois parallèles.
  4. Transformateur selon la revendication 1, étant précisé que l'enroulement feuilleté enfichable comprend des tôles enfichables individuelles qui présentent une extrémité ouverte.
  5. Transformateur selon la revendication 4, étant précisé que les tôles enfichables présentent, à au moins une extrémité d'une branche latérale, un creux pour une liaison électrique avec un élément de liaison pour tôles enfichables.
  6. Transformateur selon la revendication 4, étant précisé que les tôles enfichables présentent, à au moins une extrémité d'une branche latérale, une saillie pour une
    liaison électrique avec un élément de liaison pour tôles enfichables.
  7. Transformateur selon la revendication 1, étant précisé que les tôles enfichables présentent, sur une circonférence extérieure d'au moins une branche latérale, un creux pour une liaison électrique avec l'élément de liaison pour tôles enfichables.
  8. Transformateur selon la revendication 1, étant précisé que les tôles enfichables présentent, sur une circonférence extérieure d'au moins une branche latérale, une saillie pour une liaison électrique avec l'élément de liaison pour tôles enfichables.
  9. Transformateur selon la revendication 1, étant précisé que les tôles enfichables sont pourvues, sur au moins une face intérieure de la branche latérale, d'un élément d'accouplement qui crée une liaison d'arrêt avec au moins un élément de verrouillage du corps de bobines.
  10. Transformateur selon la revendication 9, étant précisé que le ou les éléments de verrouillage du corps de bobines sont formés sur une surface latérale tournée vers l'enroulement feuilleté enfichable, afin de garantir une liaison avec le ou les éléments d'accouplement.
  11. Transformateur selon la revendication 10, étant précisé que le ou les éléments de verrouillage sont conçus pour être déformables élastiquement.
  12. Transformateur selon la revendication 1, étant précisé qu'au moins deux tôles enfichables sont reliées à l'aide de l'élément de liaison pour tôles enfichables.
  13. Transformateur (300) qui comprend un corps de bobines pour recevoir une bobine primaire (302) et une bobine secondaire (303), ainsi qu'un noyau magnétique (312),
    étant précisé que le noyau magnétique est relié au corps de bobines de telle sorte que le corps de bobines entoure une branche centrale du noyau ;
    la bobine primaire et la bobine secondaire comportent un enroulement feuilleté enfichable (304) qui comprend plusieurs spires ;
    caractérisé en ce que le corps de bobines est pourvu de plusieurs compartiments (305) pour recevoir les enroulements feuilletés enfichables qui sont disposés de manière empilée, de sorte que les compartiments forment entre les spires une paroi (306) qui s'étend parallèlement audit enroulement, et
    étant précisé que le corps de bobines ne comporte pas de surface latérale intérieure entourant la branche centrale du noyau magnétique.
  14. Transformateur selon la revendication 13, étant précisé que les compartiments du corps de bobines présentent une plus grande profondeur que l'enroulement feuilleté enfichable.
  15. Transformateur selon la revendication 13, étant précisé que les enroulements feuilletés enfichables de la bobine primaire et de la bobine secondaire comprennent des tôles enfichables individuelles qui présentent une extrémité ouverte.
EP07802183A 2006-09-06 2007-09-06 Transformateur avec enroulement de tôle de branchement Not-in-force EP2095382B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202006013658U DE202006013658U1 (de) 2006-09-06 2006-09-06 Transformator mit Steckblechwicklung
PCT/EP2007/007787 WO2008028663A1 (fr) 2006-09-06 2007-09-06 Transformateur avec enroulement de tôle de branchement

Publications (2)

Publication Number Publication Date
EP2095382A1 EP2095382A1 (fr) 2009-09-02
EP2095382B1 true EP2095382B1 (fr) 2011-08-17

Family

ID=38754519

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07802183A Not-in-force EP2095382B1 (fr) 2006-09-06 2007-09-06 Transformateur avec enroulement de tôle de branchement

Country Status (5)

Country Link
EP (1) EP2095382B1 (fr)
AT (1) ATE521072T1 (fr)
DE (1) DE202006013658U1 (fr)
ES (1) ES2368205T3 (fr)
WO (1) WO2008028663A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011075707A1 (de) * 2011-05-12 2012-11-15 SUMIDA Components & Modules GmbH Transformator mit geblechter Wicklung
DE202011051721U1 (de) * 2011-10-21 2011-11-07 SUMIDA Components & Modules GmbH Hochspannungstransformator und bewickelter Spulenkörper für Zündmodule mit Anschlussstiften als Bestandteil der Primärwicklung
DE102018221125A1 (de) * 2018-12-06 2020-06-10 Zf Friedrichshafen Ag Abstandshalter für einen Planartransformator, Planartransformator mit dem Abstandshalter, Stromverdoppleranordnung mit dem Planartransformator sowie Verfahren zur Montage des Planartransformators

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL178373C (nl) * 1977-06-06 1986-03-03 Philips Nv Transformator.
DE3718383A1 (de) * 1987-06-02 1988-12-15 Vacuumschmelze Gmbh Hochfrequenz-leistungsuebertrager
US5010314A (en) * 1990-03-30 1991-04-23 Multisource Technology Corp. Low-profile planar transformer for use in off-line switching power supplies
JP2531897B2 (ja) * 1991-05-15 1996-09-04 インターナショナル・ビジネス・マシーンズ・コーポレイション 平面変圧器
DE9115298U1 (fr) * 1991-12-10 1992-02-13 Messelektronik Dresden Gmbh, O-8010 Dresden, De
DE69601460T2 (de) * 1996-07-17 1999-06-24 Magnetek Spa Flache magnetische Anordnung für elektronische Schaltungen
US6087922A (en) * 1998-03-04 2000-07-11 Astec International Limited Folded foil transformer construction
IL139714A0 (en) * 2000-11-15 2002-02-10 Payton Planar Magnetics Ltd A bobbin for hybrid coils in planar magnetic components
DE10148133A1 (de) * 2001-09-28 2003-04-24 Ascom Energy Systems Ag Bern Flachtransformator mit gesteckten Sekundärwicklungen
ATE491214T1 (de) * 2002-10-01 2010-12-15 Det Int Holding Ltd Spulenkörper

Also Published As

Publication number Publication date
EP2095382A1 (fr) 2009-09-02
ES2368205T3 (es) 2011-11-15
ATE521072T1 (de) 2011-09-15
WO2008028663A8 (fr) 2009-07-16
DE202006013658U1 (de) 2008-01-24
WO2008028663A1 (fr) 2008-03-13

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