EP3224841A1 - Transformateur à haute tension avec noyau en forme de u - Google Patents

Transformateur à haute tension avec noyau en forme de u

Info

Publication number
EP3224841A1
EP3224841A1 EP15747469.3A EP15747469A EP3224841A1 EP 3224841 A1 EP3224841 A1 EP 3224841A1 EP 15747469 A EP15747469 A EP 15747469A EP 3224841 A1 EP3224841 A1 EP 3224841A1
Authority
EP
European Patent Office
Prior art keywords
leg
voltage transformer
winding
transformer
dimension
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.)
Granted
Application number
EP15747469.3A
Other languages
German (de)
English (en)
Other versions
EP3224841B1 (fr
Inventor
Roman Schichl
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.)
Sumida Components and Modules GmbH
Original Assignee
Sumida Components and Modules 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 Sumida Components and Modules GmbH filed Critical Sumida Components and Modules GmbH
Publication of EP3224841A1 publication Critical patent/EP3224841A1/fr
Application granted granted Critical
Publication of EP3224841B1 publication Critical patent/EP3224841B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01F27/24—Magnetic cores
    • H01F27/255—Magnetic cores made from particles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/08—High-leakage transformers or inductances
    • H01F38/10—Ballasts, e.g. for discharge lamps

Definitions

  • the present invention relates generally to inductive components, and more particularly to low volume transformers designed for a high output voltage.
  • the electronic components provided for the power supply must also be suitably adjusted in size.
  • gas discharge lamps can be provided, which offer a constant or even higher performance with a smaller construction volume compared to luminaires used so far.
  • the low volume of construction of these bulbs also means that the electronic components required to drive the bulbs must be reduced in size.
  • inductive components and above all transformers have to be developed taking into account numerous parameters influencing the performance, since a suitable adaptation of an inductive component of numerous factors, such as the shape of the magnetic core, the type of ferrite material used, the wiring in the windings , and generally the circuit topology depends.
  • a reduction in the size of the components is desired, in particular the achievement of a sufficiently high power density for specially selected component dimensions of inductive components is associated with great effort, since numerous given by the properties of the magnetic materials physical boundary conditions are met, so that Different solutions may lead to different final results, but then may not behave in the same way in the target application.
  • a high operating voltage is required, at least in certain operating phases, so that in addition to the difficulties that have to be managed due to a desired compact design, other problems are to be considered, resulting from the high operating voltage.
  • An example of the use of small high-performance transformers, which must deliver a high output voltage, is the use in connection with certain light sources, such as Xe Non-lights, and the like, since at least for igniting the light source, a relatively high voltage of up to 30 kV is required here.
  • light sources such as Xe Non-lights, and the like
  • the size and shape of the corresponding electronic board of the shape and size of the bulb to adapt to achieve a compact overall design. Due to these requirements, therefore, small dimensions are required for corresponding transformers, which nevertheless have to meet the requirements with regard to the power density, the operating temperature, the electromagnetic behavior, the insulation resistance and the like. For example, with a power range of a few 10 W, as is typical for modern gas discharge lamps, adaptation to the oblong shape of the gas discharge flask may require certain lateral dimensions which must not be exceeded by the inductive component, to give the overall desired shape adaptation of the electronic Board enable.
  • ferrite cores are available in many standard sizes and with many standard ferrite materials, however, in the size range of cores having a magnetic effective volume of about 2000 mm 3 or less, the required component properties with a closed core geometry, such as a relatively compact design with good thermal performance and relatively low susceptibility, optionally can not be achieved, to provide sufficient power at a desired compact design of the transformer. That is, often a linear core form is used for transformers to achieve compact dimensions in at least one dimension, with a somewhat lower efficiency magnetic design compared to nearly closed magnetic circuit transformers.
  • toroidal cores or other closed magnetic systems are often not compatible in terms of the available volume of construction, especially in critical applications, such as Mobile devices, automobiles, and the like.
  • an inductive component also has a capacitive component as well as a parasitic ohmic resistance, so that, in particular, when processing very short pulses, as is the case, for example, with the ignition of light sources, the entire vibration behavior of the transformer must be taken into account and suitably interpreted.
  • the aforementioned object is achieved by a high-voltage transformer having a first winding with three or more windings.
  • the high voltage transformer further includes a second winding and a U-shaped core having a first leg and a second leg with a length of 40 mm or less. The first winding and the second winding are applied to the first leg.
  • the high-voltage transformer according to the invention has at least three turns in the primary winding, so that in this way a well-defined, set by constructive measures inductance arises, which may be relatively large compared to parasitic inductances that arise through leads. Therefore, the vibration behavior of the inductive component in a corresponding electronic circuit, such as a lighting arrangement for lighting means, essentially determined by the transformer according to the invention itself and not by parasitic effects.
  • the first and the second winding are applied together on a leg of a U-shaped core whose length is 40 mm or smaller, so that in the longitudinal direction of the U-shaped core, despite the Win 3 or greater results in a very compact design.
  • the U-shaped core itself is efficient to manufacture with high precision and, in particular, is extremely advantageous in the manufacture of the entire transformer, since the first and second windings only have to be slid onto the first leg without further assembling operations for the assembly of windings and core are required.
  • tools for pressing and sintering the core material for a U-shaped core may be provided in the form of multiple dies so that multiple cores can be made in a single operation.
  • the first winding has exactly three turns.
  • the use of exactly three turns for the primary winding of the high-voltage transformer allows the construction of the transformer with suitable inductance, in order to reduce the influence of line inductances and at the same time to achieve a suitable oscillation behavior, so that output pulses in the order of 100 ns achieved at the desired high output voltage become.
  • this design allows the secondary winding to have a relatively compact longitudinal dimension, i. with a dimension along the magnetic length direction of the first leg, so that the aforementioned dimension of 40 mm or less can be achieved.
  • the U-shaped core is provided as a one-piece core material.
  • the term "integral" is to be understood that the core material is provided as a single contiguous piece of material in which the individual regions, ie the first leg, the second leg and a corresponding connector are connected to each other, without a
  • the term "integral” in this context describes a U-shaped core pressed as a whole. As already explained above, therefore, the possibility arises in a single production process to produce several U-shaped cores simultaneously. Further, in assembling the high voltage transformer, no further steps are required to process the magnetic core material.
  • winding sections of the first winding which serve for the electrical connection of windings of the first winding, are connected between see arranged the first leg and the second leg. That is, these winding sections, which serve as a connecting line between individual turns, are arranged in the lateral direction of the U-shaped core between the first leg and the second leg of the U-shaped core. These connecting lines are thus effectively positioned between the legs, so that a certain mechanical protection effect is achieved by the second leg and the windings applied to the first leg for the connecting lines.
  • the dimension of at least the second leg may be significantly larger in one of the two lateral directions than in the corresponding other lateral direction, ie the cross-sectional shape is rectangular with a relatively small side length in the one lateral direction and with a significantly larger side length in FIG the other lateral direction, so that there is a relatively large coverage of the connecting lines at required magnetic cross section of the second leg.
  • a cross section of the first leg perpendicular to the magnetic longitudinal direction is at least twice as large as a cross section of the second leg.
  • the first leg of the U-shaped core substantially acts like a rod core surrounded by the first winding and the second winding such that the magnetic effective cross-section of the first leg substantially determines the magnetic, mechanical and thermal properties of the transformer .
  • the second leg has a much smaller magnetic cross-section, but still contributes to the overall magnetic properties crucial by about the additional core material in the second leg contributes to a required size of the inductance and the Al value of the core.
  • the AI value of the core material can be set by the second leg to a desired value, but still a saturation of the Core material may take place especially in the second leg. Saturation of the core material may be present anyway during certain phases of operation whereas a higher AI value may provide effective damping in other phases of operation, eg during the increase of the current, as long as the core is not yet saturated.
  • the unavoidable leakage inductance can be kept very small by the second leg of the U-shaped core, while on the other hand, the spatial extent of the stray field can also be efficiently modeled by the geometry and the volume of the second leg.
  • the values for the leakage inductance can be reduced by design measures to values which are suitable for the desired application, for example for an ignition transformer, while the influence of other parasitic effects, such as the inductance and capacity of supply lines, etc., is reduced is.
  • the magnetic cross section of the second leg is only one-half or substantially less compared to the magnetic cross-sectional area of the first leg, the distance between the first leg and the second leg can be reduced, without the space occupied by the first winding and the first leg second winding is needed is restricted. That is, the substantially parallel legs of the U-shaped core are spaced apart from each other so as to permit the reception of the first and second windings on the first leg during assembly of the transformer.
  • the smaller cross-section of the second leg is realized by a smaller dimension in the direction of the distance between the first and the second leg, so that when the required cross-sectional area an optimally large distance between the two legs for receiving the windings ready.
  • the first leg and the second leg have substantially the same dimension in a lateral direction and the different cross-section is achieved by different dimensions in the lateral direction perpendicular thereto.
  • the cross section of the first leg has a dimension of 4 mm or smaller in the first lateral direction and a dimension of 9 mm or smaller in the lateral direction perpendicular thereto.
  • the cross section of the first leg may have a pronounced oblong rectangular shape, thereby allowing for a given magnetic cross section to reduce the volume of construction in a lateral direction at the expense of increasing the build volume in the lateral direction perpendicular thereto. This results in a high degree of flexibility in the adaptation of the lateral dimensions of the High-voltage transformer to structural conditions, for example in a housing for receiving ignition electronics, and the like.
  • the cross section of the first leg has a dimension of 8 mm or smaller in a first lateral direction and a dimension of 5 mm or less in the lateral direction perpendicular thereto.
  • a less pronounced rectangular shape can be realized, if it is suitable for the entire lateral dimensions of the high-voltage transformer.
  • a larger surface can be provided, so that optionally a higher thermal load is tolerable.
  • a dimension of the high-voltage transformer in a first lateral direction is 16 mm or less, preferably this dimension is between 16 mm and 13 mm, and in the lateral direction perpendicular thereto the dimension is 16 mm or less, preferably this dimension lies between 16 mm and 13 mm.
  • the lateral dimensions of the high voltage transformer are chosen such that the dimensions in both lateral directions are approximately equal, so that the incorporation with respect to the lateral direction is relatively independent of the orientation of the high voltage transformer about its longitudinal axis. That is, the installation of the high-voltage transformer in a housing or on a printed circuit board can be such that a rotation about the longitudinal axis by 90.180 or 270 ° substantially without influence on the entire volume of construction, provided that connections of the high-voltage transformer are provided accordingly.
  • the connecting lines of the first winding lie in the space between the windings, which are applied to the first leg, and the second leg, as already explained above.
  • a dimension of the high-voltage transformer in a first lateral direction is 20 mm or less, preferably this dimension is between 19 mm and 17 mm, and in the lateral direction perpendicular thereto Direction is the dimension 14 mm or less, preferably this dimension is between 13 mm and 11 mm.
  • an overall rectangular shape of the cross section can be provided, so that a suitable adaptation to the available volume of construction in the lateral directions is possible.
  • the connecting lines of the first winding are preferably positioned above or below the first leg or rotated by 90 ° thereto.
  • the longitudinal dimension of the high voltage transformer is substantially unaffected.
  • the dimension in the longitudinal direction is 40 mm or less, and is preferably 36 mm or less.
  • the longitudinal dimension is between 33 mm and 36 mm.
  • no further magnetic components are provided in the high-voltage transformer according to the invention except the U-shaped core. That is, in this preferred embodiment, the geometrical parameters are chosen in dependence on other parameters such that no additional additional magnetic material is required for the core.
  • the production of the core material for an entire high-voltage transformer is substantially simplified, since, for example, several U-shaped cores can be produced in a common single operation.
  • the assembly of the high-voltage transformer is significantly simplified, since with regard to the core material, no further work steps, such as the attachment of shielding elements, field guide elements and the like, are required.
  • the essential parameters of the inductive and capacitive behavior of the high-voltage transformer are thereby determined by design measures, for example by manufacturing the U-shaped core, so that a high level of consistency in the production of a plurality of high-voltage transformers is ensured.
  • Figure 1A shows a perspective view of a high voltage transformer according to the present invention
  • FIG. 1B shows a first sectional view of the high-voltage transformer
  • FIG. 1C shows a further sectional view of the high-voltage transformer
  • Figure 2A shows a perspective view of a high voltage transformer according to another embodiment of the present invention
  • FIG. 2B shows a first sectional view of the high-voltage transformer
  • FIG. 2C shows a further sectional view of the high-voltage transformer according to the invention
  • FIG. 3A shows a perspective view of a high-voltage transformer according to a further embodiment of the present invention, in which connecting lines of the first winding are rotated by 90 ° in comparison with the embodiment shown in FIGS. 2,
  • FIG. 3B shows a first sectional view of the high-voltage transformer
  • FIG. 3C shows a further sectional view of the high-voltage transformer according to the invention.
  • FIG. 1A schematically illustrates a perspective view of a high voltage transformer 100 in accordance with an illustrative embodiment of the present invention.
  • the high-voltage transformer 100 which in illustrative embodiments transforms an input voltage of several 10 V to several 100 V to a relatively high output voltage in the range of several 100 V to several 10,000 V, is in particular especially due to the compact design for mobile applications and applications in the automotive sector and the like suitable when relatively high output voltages are required.
  • the high-voltage transformer 100 can be advantageously used for igniting gas discharge lamps.
  • the high-voltage transformer 100 includes a U-shaped core 1 10, which comprises a first leg 1 12, a second leg 11 1 and a coupling part 1 13 connecting these two legs.
  • the core 1 10 is provided as a "one-piece" piece of material, which is manufactured in one operation together with other cores and makes in the assembly of the high voltage transformer 100 no further steps required, such as attaching and fixing other magnetic components and the like.
  • the core 1 10 thus forms a non-closed core material for the transformer 100, wherein in particularly advantageous embodiments, no further magnetic components in the form of field guide plates, etc, are provided.
  • U-shaped core also includes any other geometry in which the coupling member 113 and the two legs 12 and 11 have a shape in which the first leg and the second leg are elongate
  • the rectangular shape shown in the figures may also have curves, that is, the first leg 112 and / or the second leg 11 1 and / or the coupling part 1 13 may be at least approximately over a certain distance
  • the individual components of the core 110 need not necessarily be rectilinear components, but they may also have a curvature, as long as this is compatible with the required structural volume the coupling part 113 has an arcuate shape
  • Embodiments results due to the rectilinear and rectangular structure of the individual components of the core 1 10 a total of low construction volume.
  • the length of the core 110 ie, the extent of the core 110 in a longitudinal direction L, defines the overall length of the high voltage transformer 100, and is 40 mm or less.
  • Cross-sectional areas 1 12S and 11 1 S of the two legs 1 12, 1 1 1 form in the embodiments shown, rectangles and are of different sizes. That is, the cross-sectional area 112S is significantly larger than the cross-sectional area 11 1S and, in preferred embodiments, is about twice as large as the cross-sectional area 11 1S.
  • first leg 1 12 and the second leg 1 1 1 have relatively large surfaces for a given magnetic volume, which can achieve good thermal properties.
  • the high voltage transformer 100 further includes a first winding 140 that includes three or more turns.
  • the first winding 140 contains exactly three windings 141, 142 and 143.
  • the windings 141, ..., 143 are connected in series through corresponding connecting pieces 145 or connecting lines.
  • the first winding 140 is connected to corresponding pins, such as by means of a connecting line 144, which is guided with a precisely defined distance with respect to the other components of the transformer 100.
  • the high-voltage transformer 100 further comprises a second winding 120, which optionally has a suitable number of winding sections 121, 124, wherein the number of winding sections is typically dependent on the number of turns of the first winding 140. In the arrangement shown four winding sections are shown.
  • the first winding 140 and the second winding 120 are applied to a bobbin 130, which in turn is pushed onto the first leg 1 12 of the core 1 10.
  • the use of the bobbin 130 makes it possible to use automated work processes for applying, in particular, the second winding 120, which is applied to the bobbin 130 before the first winding 140 is produced.
  • the first coil 140 may include one or more conductive tabs, which may include, for example, suitable pins, etc., in conjunction with a suitable wire, which may be used, for example, to make the connecting leads 144 and / or 145.
  • the bobbin 130 corresponding recesses, which the conductor material of Windings 141, .., 143 reliably separate in the longitudinal direction L of the conductor material of the second winding 120, so that sufficient insulation distances are already created by constructive measures.
  • corresponding recesses may be provided to receive, for example, the connection line 144, so that it is guided at a precise distance from the second winding 120 and the core 110, so that in this way a precisely defined geometry in the wiring in the construction of the transformer 100th can be complied with.
  • FIG. 1B shows a sectional view of the transformer 100 when viewed along the lateral direction B2 (see FIG. 1A).
  • the three turns of the first winding 140 and the connecting lines 144, 145 are shown.
  • the first leg 112 and the second leg 11 1 have different dimensions along the lateral direction B1.
  • a dimension 1 12A for the first leg 12 is shown having a size of 5mm or smaller.
  • the dimension 1 12A is between 3.5 mm and 4.5 mm.
  • the corresponding dimension 1 11 A of the second leg 1 1 1 is significantly smaller and is 3 mm and smaller, preferably the size of the dimension 11 1 A is in the range of 1, 5 mm to 2.5 mm.
  • a length 101 of the entire high-voltage transformer 100 which is determined by the length of the core 1 10, is 40 mm or less, and preferably the length 101 is in the range of 32 mm to 36 mm.
  • the transformer 100 having the dimensions just specified can provide an output voltage during an ignition of 30,000 V or more at an input voltage of 600 V to 1000 V. Furthermore, the operating current of the light source is passed through the second winding of the transformer after ignition of a gas discharge lamp.
  • FIG. 1C shows a sectional view viewed from the lateral direction B1 (see FIG. 1A).
  • the second leg 1 1 1 and the first leg 1 12 are shown schematically, which are preferably the same in the illustrated embodiment Have dimension along the lateral direction B2.
  • These dimensions, designated 112B and 11B, are 9 mm or smaller and preferably in the range between 6.5 mm and 7.5 mm.
  • the magnetic cross section 1 12S is significantly larger than the magnetic cross section 11 1S (see Figure 1A), as the second leg 1 11 essentially only as a conclusion for the magnetic field of the first leg 1 12 and thus to adjust the total inductance of the Core material is used.
  • a saturation of the core material is present in certain operating phases anyway, so that the reduction of the magnetic cross section of the second leg 11 1 in this respect no limitation of the functionality of the transformer 100 entails.
  • the desired current-limiting effect of the transformer 100 can still be achieved in certain operating phases by a relatively high inductance by a desired high inductance value is provided by the second leg 11 1.
  • This mechanical protection function is supported by the relatively large extension 11 1 B along the lateral direction B2.
  • the overall dimensions along the first lateral direction B1 and along the second lateral direction B2, which are designated 102 (see FIG. 1B) and 103 (see FIG. 1C), are also approximately the same and lie in the region of 18 mm or smaller, preferably between 14 mm and 17 mm.
  • FIG. 2A shows a perspective view of the high-voltage transformer according to FIG. ner further embodiment 200, in which a U-shaped core 210 has a first leg 212 and a second leg 211. Furthermore, the high-voltage transformer 200 comprises a first winding 240 with three or more turns 241, 243, preferably with exactly three turns, and a second winding 220, which may have a plurality of winding sections, approximately four winding sections.
  • the dimension along a longitudinal direction L of the transformer 200 is determined substantially by the length of the core 210 and is 40 mm or less.
  • the U-shaped core 210 has analogous criteria as previously described with respect to the core 110 of the transformer 100, but in this embodiment, a somewhat less "stretched" rectangular shape for cross-sectional areas 212S and 21 1S for the legs 212, 21 1 is provided to take into account a total of a less elongated rectangular overall cross-sectional shape of the transformer 200.
  • connecting lines 244, 245 of the first winding 240 are not provided between the legs 212, 211 along the direction B2, as is the case in the embodiment of FIG. Rather, in the embodiment shown, the connecting lines 244, 245 along the direction B1 laterally offset from the first and the second leg 212, 21 1 are arranged. In this way, a high degree of flexibility can be achieved in the final adjustment of the component size in the lateral directions B1 and B2, while the inductive and capacitive properties thereof remain substantially unaffected.
  • FIG. 2B shows a sectional view of the transformer 200, which is viewed from the direction B1.
  • the U-shaped core 210 has the legs 212, 211 and a coupling part 213.
  • a dimension 212A of the leg 212 along the direction B2 is 8 mm or less, and preferably, this dimension is in the range between 4.5 mm and 6.5 mm.
  • the corresponding dimension 21 1A is 4 mm or less, and in preferred embodiments is in a range between 2.5 mm and 3.5 mm.
  • the total length 201 of the transformer 200 which in turn is defined by the length of the core 210, is 40 mm or less and is preferably in a range between 32 mm and 36 mm. For the entire dimension 203 along the lateral direction B2, this is 20 mm or less and, in preferred embodiments, in a range between see 13 mm and 17 mm.
  • FIG. 2C shows a sectional view of the transformer 200, looking from the direction B2.
  • the dimensions 212B and 211B in the lateral direction B1 are the same for the first leg 212 and second leg 211 and are 8 mm or less. Vorzugsswiese these dimensions are in a range of 4.5 mm and 6.5 mm.
  • the lateral dimension 203 of the transformer 200 in the lateral direction B1 is 17 mm or less and is preferably between 13 mm and 15 mm.
  • Figure 3A shows a perspective view of the high voltage transformer according to another embodiment 300, which is similar in geometry to the embodiment shown in Figure 2, but with connecting leads and terminals rotated 90 ° about a longitudinal direction L.
  • the transformer 300 includes a U-shaped core 310 having a first leg 312 and a second leg 311. Further, the high voltage transformer 300 includes a first winding 340 having three or more turns 341, 343, preferably exactly three turns, and a second winding 320, which may have a plurality of winding sections, about four winding sections.
  • the dimension along the longitudinal direction L of the transformer 300 is determined substantially by the length of the core 310 and is 40 mm or less.
  • the U-shaped core 310 has analogous criteria as previously described with respect to the core 110 and 210 of the transformer 100 and 200, however, in this embodiment, as compared to the transformer 100, a somewhat less "stretched" rectangular shape for cross-sectional areas 312S and 31 1S is provided for the legs 312, 311 to account for a total of a less elongated rectangular overall cross-sectional shape of the transformer 300.
  • connecting lines 344, 345 of the first winding 340 are not provided between the legs along the direction B2, as is the case in the embodiment of FIG. Rather, in the embodiment shown, the connecting lines 344, 345 along the direction B2 over (or under) the first leg 312 are arranged and thus rotated by 180 ° about the longitudinal axis L compared to the transformer 100 or 90 ° compared to the transformer 200 , In this way, a high degree of flexibility in the final adjustment of the construction reach partial size in the lateral directions B1 and B2, while the inductive properties thereof remain substantially unaffected.
  • FIG. 3B shows a sectional view of the transformer 300, which is viewed from the direction B1.
  • the U-shaped core 310 has the legs 312, 311 and a coupling part 313.
  • a dimension 312A of the leg 312 along the direction B2 is 8 mm or less, and preferably, this dimension is in the range between 4.5 mm and 7.5 mm.
  • the corresponding dimension 31 1A is 4 mm or less, and in preferred embodiments is in a range between 2.5 mm and 3.5 mm.
  • the total length 301 of the transformer 300 which in turn is defined by the length of the core 310, is 40 mm or less and is preferably in a range between 32 mm and 36 mm. For the entire dimension 303 along the lateral direction B2, this is 18 mm or less and in preferred embodiments is in a range between 14 mm and 16 mm.
  • FIG. 3C shows a sectional view of the transformer 300, viewed from the direction B2.
  • the dimensions 312B and 311B in the lateral direction B1 are the same for the first leg 312 and the second leg 311 and are 7 mm or less. Vorzugsswiese these dimensions are in a range of 4 mm and 6 mm. For the entire dimension 302 along the lateral direction B1, this is 15 mm or less, and in preferred embodiments is in a range between 11 mm and 13 mm.
  • the dimensions in the lateral directions B1 and B2 of the core and thus also of the entire transformer may be reversed or changed as needed to accommodate the given lateral mounting dimension in a particular application.
  • the required inductive properties are retained.
  • the high-voltage transformer 100, 200 can be constructed with a low volume, and in particular typically the length, which is 40 mm or less, is well adapted to existing systems.
  • the values of the leakage inductance and the total inductance can be adjusted so that in particular during the ignition process, a pulse of suitable length is generated and in the further course during startup of the discharge lamp, a current limit is reached.
  • the use of three turns in the first winding leads to an inductive behavior of the transformer such that further inductances, which are caused for example by connection lines of the transformer to a further electrical component, have a significantly lower impact on the overall behavior, so that the desired Vibration behavior is determined by constructive measures of the transformer itself.
  • the use of the U-shaped core material reduces both the cost of manufacturing the core material itself and the cost of assembling the high voltage transformer.

Landscapes

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

Abstract

L'invention concerne un transformateur qui comprend un premier enroulement ayant trois spires ou plus, de préférence exactement trois spires, et un second enroulement ainsi qu'un noyau en forme de U. La longueur du transformateur est inférieure ou égale à 40 mm, ce qui permet d'obtenir un faible encombrement, par exemple pour les blocs d'allumage de luminaires. L'utilisation d'un noyau en forme de U permet également de réduire les coûts de fabrication.
EP15747469.3A 2014-11-28 2015-08-04 Transformateur à haute tension avec noyau en forme de u Active EP3224841B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014224331.9A DE102014224331A1 (de) 2014-11-28 2014-11-28 Hochspannungstransformator mit U-förmigem Kern
PCT/EP2015/067960 WO2016082944A1 (fr) 2014-11-28 2015-08-04 Transformateur à haute tension avec noyau en forme de u

Publications (2)

Publication Number Publication Date
EP3224841A1 true EP3224841A1 (fr) 2017-10-04
EP3224841B1 EP3224841B1 (fr) 2020-12-02

Family

ID=53783740

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15747469.3A Active EP3224841B1 (fr) 2014-11-28 2015-08-04 Transformateur à haute tension avec noyau en forme de u

Country Status (3)

Country Link
EP (1) EP3224841B1 (fr)
DE (1) DE102014224331A1 (fr)
WO (1) WO2016082944A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108597791A (zh) * 2018-02-23 2018-09-28 上海圣缑电磁设备有限公司 电抗器及其制造方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1367988A (en) * 1921-02-08 replogle
DE506660C (de) * 1928-11-03 1930-09-06 App Bauanstalt Ing Hans Klinkh Vorrichtung zum Abdaempfen von Spannungsschwankungen eines Wechselstromnetzes, insbesondere fuer Messzwecke
US2867785A (en) * 1953-03-06 1959-01-06 Ranza A Crumbliss Ignition coil
DE9417708U1 (de) * 1994-11-04 1996-02-29 Tridonic Bauelemente Filterdrossel
DE102004055154B4 (de) * 2003-12-23 2007-10-18 Sew-Eurodrive Gmbh & Co. Kg Verfahren zum Betrieb eines Systems zur berührungslosen Energieübertragung, System zur berührungslosen Energieübertragung und Übertragerkopf
DE102005029001A1 (de) * 2005-02-11 2006-08-24 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampensockel für eine Hochdruckentladungslampe und Hochdrucksentladungslampe
KR100843446B1 (ko) * 2007-03-21 2008-07-03 삼성전기주식회사 집적형 트랜스포머
DE102007025421B4 (de) * 2007-05-31 2009-07-30 Vogt Electronic Components Gmbh Zündtransformator und Zündmodul
DE102007049235A1 (de) * 2007-10-10 2009-04-16 Siemens Ag Anordnung zur induktiven Übertragung von elektrischer Energie
DE202011051721U1 (de) * 2011-10-21 2011-11-07 SUMIDA Components & Modules GmbH Hochspannungstransformator und bewickelter Spulenkörper für Zündmodule mit Anschlussstiften als Bestandteil der Primärwicklung
DE102013200265A1 (de) * 2013-01-10 2014-07-10 SUMIDA Components & Modules GmbH Kleintransformator für hohe Ausgangsspannungen

Also Published As

Publication number Publication date
EP3224841B1 (fr) 2020-12-02
DE102014224331A1 (de) 2016-06-02
WO2016082944A1 (fr) 2016-06-02

Similar Documents

Publication Publication Date Title
EP1880586B1 (fr) Transformateur d'allumage et culot pour une lampe a decharge
DE102004025076B4 (de) Spulenanordnung und Verfahren zu deren Herstellung
EP2428967A1 (fr) Enroulement de transformateur
DE102006044436B4 (de) Vorrichtung zur Energiespeicherung und Energietransformierung
EP1650843B1 (fr) Connecteur de bougie d'allumage
DE7026843U (de) Induktives und/oder kapazitives elektrisches bauelement.
DE112006003946B4 (de) Induktives Bauteil mit einem Spulenkörper mit integrierter Wicklung
WO2013057266A1 (fr) Transformateur haute tension et corps de bobine enroulé pour module d'allumage pourvu de tiges de raccordement comme partie constitutive de l'enroulement primaire
DE102013213404A1 (de) Induktives Bauelement
EP3224841B1 (fr) Transformateur à haute tension avec noyau en forme de u
DE4025159C2 (de) Durchführungsfilter
DE102007025421B4 (de) Zündtransformator und Zündmodul
EP3304570B1 (fr) Transformateur special moins bruyant
EP3172748A1 (fr) Petit transformateur haute tension à noyau en u
DE4311126C2 (de) Stromkompensierte Mehrfachdrossel in Kompaktbauweise
DE102013200265A1 (de) Kleintransformator für hohe Ausgangsspannungen
WO2019120882A1 (fr) Noyau de transformateur et transformateur
DE102004008961B4 (de) Spulenkörper für geschlossenen magnetischen Kern und daraus hergestellte Entstördrossel
EP3076409B1 (fr) Connexion électrique d'enroulements écartés les uns des autres
DE202013000831U1 (de) Transformator
DE102004056991B4 (de) Bauelement zur Störwellenunterdrückung in Zündanlagen und Verfahren zu dessen Herstellung
DE202015105768U1 (de) Induktives Bauelement für Hochstromanwendungen
DE102007063690B4 (de) Zündmodul
DE102017114924A1 (de) Spulenanordnung
DE102017214219A1 (de) Geschlitzter magnetischer Kern und Verfahren zur Herstellung eines geschlitzten magnetischen Kerns

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20170504

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20200723

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1341825

Country of ref document: AT

Kind code of ref document: T

Effective date: 20201215

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502015013952

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210302

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210303

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20201202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210302

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210405

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502015013952

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210402

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202

26N No opposition filed

Effective date: 20210903

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20210831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210402

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210804

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210804

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210831

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1341825

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210804

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210804

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20150804

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230824

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230824

Year of fee payment: 9

Ref country code: DE

Payment date: 20230830

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202