EP2065907A1 - Ensemble de bobine - Google Patents
Ensemble de bobine Download PDFInfo
- Publication number
- EP2065907A1 EP2065907A1 EP07021709A EP07021709A EP2065907A1 EP 2065907 A1 EP2065907 A1 EP 2065907A1 EP 07021709 A EP07021709 A EP 07021709A EP 07021709 A EP07021709 A EP 07021709A EP 2065907 A1 EP2065907 A1 EP 2065907A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- core
- coil
- coil assembly
- turns
- conductive
- 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.)
- Withdrawn
Links
- 239000012212 insulator Substances 0.000 claims abstract description 19
- 230000007423 decrease Effects 0.000 claims description 5
- 239000012811 non-conductive material Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 abstract description 15
- 239000004020 conductor Substances 0.000 abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 abstract description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 239000010949 copper Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Classifications
-
- 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
- H01F38/12—Ignition, e.g. for IC engines
-
- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
- H01F27/363—Electric or magnetic shields or screens made of electrically conductive material
-
- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
-
- 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 a coil arrangement as z. B. in internal combustion engines for generating high voltage for a spark gap is required.
- the coil arrangement acts as an energy store, wherein previously supplied energy is at least temporarily stored in a magnetic field of the coil assembly and is cyclically converted into electrostatic energy of the coil assembly associated capacity.
- the coil arrangement is part of a resonator arranged downstream of a generator, wherein both the generator and the resonator each comprise a resonant circuit, that is to say a capacitance coupled to an inductance.
- a voltage increase the z. B. reaches the multiple of the applied operating voltage.
- the resonator coupled to the generator there is an increase in voltage which, with a continuous supply of energy from the generator, can reach one hundred to two hundred times the voltage injected by the generator into the resonator.
- a coil assembly is provided with a layered structure, seen in coaxial arrangement, from the inside out, acting as a carrier, magnetically non-conductive core, coil windings attached thereto, an insulator surrounding this and the insulator surrounding the shield on all sides also not magnetically comprising conductive material.
- the magnetically non-conductive core essentially acts as a carrier for the coil windings and ensures their desired spatial arrangement and a uniform distribution of the coil windings.
- the magnetically non-conductive Shielding ensures a shielding of the coil arrangement against any external electromagnetic fields and prevents interference of spatially adjacent objects by the magnetic field associated with the coil arrangement during operation.
- the core has on its surface guide grooves for adjusting the coil turns, so that a constant distance of the coil turns is ensured with each other, and in the operation of the coil assembly can be formed with respect to its homogeneity optimized magnetic field.
- the core has at least one end, in particular at both ends, a recess for terminating the respective outer, ie first and / or last coil turn, mechanically simple conditions arise with regard to the attachment of the coil turns to the core.
- the electromagnetic characteristics associated with the resulting individual coil arrangements are substantially identical, because e.g. B. the number of turns, Thus, the number of coil turns, and the effective length of the coil turns forming conductor is identical.
- the core has at least one end a uniformly distributed over the circumference of the core plurality of recesses to complete the completion of the coil turns, wherein the at least one recess on one side of the core and one of the plurality of recesses lie on the other side of the core in a plane parallel to the longitudinal axis of the core.
- the coil turns are all mounted on the core in a same plane, so all the coil windings are on the same lateral surface of an imaginary hollow cylinder, which coincides with the surface of the core. This avoids additional coupling effects of the magnetic field and allows a simpler structure of the insulation.
- the core is preferably hollow.
- the core is made of a non-conductive, so electronically and / or magnetically non-conductive material, more preferably made of a high-frequency non-conductive material, ie of a material that does not or does not appreciably change its conductivity properties under high-frequency influence.
- the non-conductive or high-frequency non-conductive core is also high-voltage and / or temperature-resistant.
- materials for such a design of the core and / or the insulation between the coil and screen z As polytetrafluoroethylene (PTFE) or derivatives thereof, ie - according to the customary for such compounds brand - Teflon or Teflon derivatives, into consideration.
- PTFE polytetrafluoroethylene
- a thickness of the insulator increases or decreases along a longitudinal extent of the coil arrangement, in particular increases or decreases continuously.
- the diameter of the core may vary along its longitudinal extent such that e.g. a smaller diameter is present in one end region of the core than at its other end region or a middle section. In this way can be achieved by a suitable choice of the geometry of the coil assembly and the components thereof to the desired electromagnetic properties on the one hand and isolation properties on the other hand.
- FIG. 1 shows a schematically simplified representation of a resonator circuit comprising a coil arrangement 10 and a capacitor 12, which circuit is comprised of a high-frequency ignition device in a manner known per se.
- a charge flashover in the region of the capacitance 12, ie a plasma formation which is utilized in an internal combustion engine in a manner known per se for igniting an air-fuel mixture.
- the coil arrangement 10 is represented electrically as a combination of an inductance L and the ohmic resistance R associated with the inductance due to material properties of the conductor used therefor.
- FIGS. 2a and 2b For example, various embodiments of the coil assembly 10 according to the invention are shown in section through a portion of the coil assembly 10, respectively. Thereafter, the coil assembly 10 in a layered construction in coaxial arrangement, from the inside to Seen outside, acting as a carrier, magnetically non-conductive core 14, attached coil turns 16, a surrounding this insulator 18 and finally a turn the insulator 18 enclosing shield 20, which also consists of a magnetically non-conductive material, for. As aluminum or copper is made.
- the layered structure can be regarded as a series of concentric hollow cylinders, wherein the core 14 as it were an inner hollow cylinder and the shield 20 forms an outer hollow cylinder, between which is provided as a further hollow cylinder layers on the side of the shield, the insulator 18 and wherein the coil turns 16 in an imaginary hollow cylinder section are arranged, which is located in the region of the transition between the core 14 and insulator 18.
- the embodiment according to FIG. 2b occur in the place of the hollow cylinder sections truncated cone sections, wherein the respective truncated cone sections in the direction of the coil assembly downstream capacity 12 (see FIG. FIG. 1 ) rejuvenate.
- Both embodiments have in common that the core 14 has on its surface guide grooves 22 for adjusting the coil turns 16.
- This facilitates, on the one hand, the application of the coil windings 16 to the core 14, namely at an efficiency exclusive consideration coming automatic production, and on the other hand ensures an always constant distance of the coil turns 16 with each other, so that in the interior of the coil assembly 10 at the Operation forms a optimized with respect to its homogeneity magnetic field. Due to this homogeneity, the actual magnetic field is largely idealized as it is usual mathematical modeling are to be based, so that a control of the coil assembly 10 and thus targeted resonance peak can be controlled optimally.
- a thickness of the insulating layer 18 toward the tapered end of the coil assembly 10 increases, ie a slope of the lateral surface of the core 14 is smaller than a corresponding slope of a lateral surface of the insulator 18.
- This is advantageous because the potential of Winding for shielding along the lateral surface increases in the case of resonance and increased insulation resistance is required. Furthermore, results in a more compact space of the entire structure. If no such deviating inclinations are provided, identical gradients are also possible both for a lateral surface of the core 14 and a corresponding lateral surface of the insulator 18. It can also be provided that the ratio of the gradients is reversed, ie that a thickness of the insulator layer 18 decreases in the direction of the tapering end of the coil arrangement 10.
- FIG. 3 shows a three-dimensional representation of the core 14 with attached coil windings 16.
- the core 14 has at its two ends in each case a recess 24, 26 for completing the respective outer, ie first or last coil turn 16.
- the two recesses 24, 26 are at both ends of the core 14 at both ends of the core 14 in a plane parallel to the longitudinal axis of the core 14, so that there is always an integer number of complete coil turns 16 on the core 14.
- a plurality of recesses 24, 26 can also be provided at one or both ends of the core 14, possibly evenly or regularly distributed over the circumference of the core.
- Each recess 24, 26 may, as in FIG. 3 shown on the left side, in the sense of an upwardly open recess or, as in FIG. 3 shown on the right, be designed as a bore or closed or closable (eg by adhesive), upwardly open recess.
- FIG. 4 shows a perspective, partially sectional view of the coil assembly 10 according to the in FIG. 2a shown embodiment. It can be seen the layered sequence of core 14, coil turns 16, insulator 18 and shield 20.
- the insulator 18 is z. B. as solidifying casting material in a at the introduction of the core 14 with applied coil turns 16 (see FIG. 3 ) remaining gap to the shield 20 filled, so that the insulator 18 for fixing the coil turns 16 on the core 14 is effective.
- insulating property of the insulator 18 thus also for the mechanical protection of the coil windings 16 in the manufacture of the coil assembly 10 is effective.
- the core 14 is hollow and that the coil assembly 10 (as shown in FIG. 4 in the lower left area) the capacity 12 (see also FIG. 1 ).
- the shield 20 continues and functions there as an electrode.
- the shield 20 acts as a capacitor, so that depending on the vote and the inductance of the coil assembly and the shield 20 is a capacitive component of a vibratory system and contributes to the desired resonance peaking.
- the shield 20 of the coil arrangement 10 and a shield connected thereto in this order about a generator region 28 is the sections shielding including the shield 20 in the coil assembly 10 as a return conductor to complete a circuit in which the coil assembly 10 acts as a section of a "Hinleiters", effective.
- a coil arrangement 10 with a layered structure which, viewed from inside to outside, in a coaxial arrangement, acts as a carrier, magnetically nonconductive core 14 in the form of a hollow cylinder or truncated cone attached thereto coil turns 16, about a correspondingly also designed as a hollow cylinder or truncated cone insulator 18 and finally a cylinder jacket or truncated cone-shaped shield 20, which consists of magnetically non-conductive material, eg. As aluminum or copper, and is effective as a shielding of a forming during operation of the coil assembly 10 in the interior magnetic field both to the outside and against external influences.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07021709A EP2065907A1 (fr) | 2007-11-08 | 2007-11-08 | Ensemble de bobine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07021709A EP2065907A1 (fr) | 2007-11-08 | 2007-11-08 | Ensemble de bobine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2065907A1 true EP2065907A1 (fr) | 2009-06-03 |
Family
ID=39232759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07021709A Withdrawn EP2065907A1 (fr) | 2007-11-08 | 2007-11-08 | Ensemble de bobine |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP2065907A1 (fr) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015181704A1 (fr) * | 2014-05-27 | 2015-12-03 | Castfutura S.P.A. | Transformateur haute tension |
| WO2016141385A1 (fr) | 2015-03-05 | 2016-09-09 | Enhanced Life Water Solutions, Inc. | Systèmes et procédés de commande de champs électriques dans un fluide, dans des gaz et des bactéries |
| DE102015113075A1 (de) * | 2015-08-07 | 2017-02-09 | Borgwarner Ludwigsburg Gmbh | Koronazündeinrichtung mit hohlem Spulenkörper |
| CN108695692A (zh) * | 2018-06-29 | 2018-10-23 | 桑顿新能源科技有限公司 | 一种高度集成抗电磁屏蔽高压配电盒 |
| EP3286771A4 (fr) * | 2015-03-05 | 2018-12-05 | Enhanced Life Water Solutions, LLC | Systèmes et procédés de commande de champs électriques dans un fluide, dans des gaz et des bactéries |
| CN113539644A (zh) * | 2020-04-20 | 2021-10-22 | Tdk株式会社 | 线圈部件 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4170014A (en) * | 1978-02-01 | 1979-10-02 | Antenna and Vehicular Accessories, Inc. | Antenna coil |
| US4684912A (en) * | 1986-07-09 | 1987-08-04 | Marshall Electric Corporation | Winding form for high voltage transformer |
| EP0297487A1 (fr) * | 1987-06-30 | 1989-01-04 | TDK Corporation | Transformateur |
| US4808959A (en) * | 1988-03-31 | 1989-02-28 | Magnatek Universal Manufacturing | Electrical coil with tap transferring to end-layer position |
| EP1732187A1 (fr) * | 2005-06-08 | 2006-12-13 | Renault | Bougie à plasma radiofréquence pour l'allumage commandé de moteurs à combustion interne |
| DE102006037246A1 (de) | 2005-08-10 | 2007-02-22 | Siemens Ag | Verfahren zum Betreiben einer Zündkerze eines Zündsystems sowie Zündsystem und geeignete Zündkerze |
| DE102005037420A1 (de) | 2005-08-08 | 2007-02-22 | Siemens Ag | Verfahren zum Betrieb eines Zündsystems zur Selbstreinigung von Zündkerzen |
-
2007
- 2007-11-08 EP EP07021709A patent/EP2065907A1/fr not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4170014A (en) * | 1978-02-01 | 1979-10-02 | Antenna and Vehicular Accessories, Inc. | Antenna coil |
| US4684912A (en) * | 1986-07-09 | 1987-08-04 | Marshall Electric Corporation | Winding form for high voltage transformer |
| EP0297487A1 (fr) * | 1987-06-30 | 1989-01-04 | TDK Corporation | Transformateur |
| US4808959A (en) * | 1988-03-31 | 1989-02-28 | Magnatek Universal Manufacturing | Electrical coil with tap transferring to end-layer position |
| EP1732187A1 (fr) * | 2005-06-08 | 2006-12-13 | Renault | Bougie à plasma radiofréquence pour l'allumage commandé de moteurs à combustion interne |
| DE102005037420A1 (de) | 2005-08-08 | 2007-02-22 | Siemens Ag | Verfahren zum Betrieb eines Zündsystems zur Selbstreinigung von Zündkerzen |
| DE102006037246A1 (de) | 2005-08-10 | 2007-02-22 | Siemens Ag | Verfahren zum Betreiben einer Zündkerze eines Zündsystems sowie Zündsystem und geeignete Zündkerze |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015181704A1 (fr) * | 2014-05-27 | 2015-12-03 | Castfutura S.P.A. | Transformateur haute tension |
| EA033408B1 (ru) * | 2014-05-27 | 2019-10-31 | Castfutura Spa | Трансформатор высокого напряжения |
| WO2016141385A1 (fr) | 2015-03-05 | 2016-09-09 | Enhanced Life Water Solutions, Inc. | Systèmes et procédés de commande de champs électriques dans un fluide, dans des gaz et des bactéries |
| EP3286771A4 (fr) * | 2015-03-05 | 2018-12-05 | Enhanced Life Water Solutions, LLC | Systèmes et procédés de commande de champs électriques dans un fluide, dans des gaz et des bactéries |
| DE102015113075A1 (de) * | 2015-08-07 | 2017-02-09 | Borgwarner Ludwigsburg Gmbh | Koronazündeinrichtung mit hohlem Spulenkörper |
| CN106438159A (zh) * | 2015-08-07 | 2017-02-22 | 博格华纳路德维希堡有限公司 | 具有中空线圈体的电晕点火装置 |
| US10218155B2 (en) | 2015-08-07 | 2019-02-26 | Borgwarner Ludwigsburg Gmbh | Corona ignition device having a hollow coil body |
| CN106438159B (zh) * | 2015-08-07 | 2019-08-13 | 博格华纳路德维希堡有限公司 | 具有中空线圈体的电晕点火装置 |
| CN108695692A (zh) * | 2018-06-29 | 2018-10-23 | 桑顿新能源科技有限公司 | 一种高度集成抗电磁屏蔽高压配电盒 |
| CN108695692B (zh) * | 2018-06-29 | 2024-03-19 | 余姚市海泰贸易有限公司 | 一种高度集成抗电磁屏蔽高压配电盒 |
| CN113539644A (zh) * | 2020-04-20 | 2021-10-22 | Tdk株式会社 | 线圈部件 |
| CN113539644B (zh) * | 2020-04-20 | 2024-01-12 | Tdk株式会社 | 线圈部件 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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