EP2067149A1 - Dispositif pour l'accumulation d'énergie et la transformation d'énergie - Google Patents

Dispositif pour l'accumulation d'énergie et la transformation d'énergie

Info

Publication number
EP2067149A1
EP2067149A1 EP07803387A EP07803387A EP2067149A1 EP 2067149 A1 EP2067149 A1 EP 2067149A1 EP 07803387 A EP07803387 A EP 07803387A EP 07803387 A EP07803387 A EP 07803387A EP 2067149 A1 EP2067149 A1 EP 2067149A1
Authority
EP
European Patent Office
Prior art keywords
core
insulation
winding
energy
peripheral
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
EP07803387A
Other languages
German (de)
English (en)
Other versions
EP2067149B1 (fr
Inventor
Werner Steinberger
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2067149A1 publication Critical patent/EP2067149A1/fr
Application granted granted Critical
Publication of EP2067149B1 publication Critical patent/EP2067149B1/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
    • 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
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/12—Ignition, e.g. for IC engines
    • H01F2038/127—Ignition, e.g. for IC engines with magnetic circuit including permanent magnet
    • 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

Definitions

  • the present invention relates to a device for energy storage and energy transformation, in particular an ignition coil of an ignition system of a motor vehicle according to the preamble of patent claim 1.
  • ignition coils represent an energy-transmitting high voltage source and are used in operating according to the Otto principle internal combustion engines for controlling a spark plug.
  • electrical energy is converted with a comparatively low supply voltage usually from a DC electrical system in magnetic energy, which is converted to electrical energy with high voltage at a desired time at which an ignition pulse is to be delivered to the spark plug.
  • a first coil which usually represents a winding of copper wire. This creates around this coil around a magnetic field which has a certain direction and is closed in itself.
  • the previously constructed magnetic field is forced to turn by switching off the electric current, whereby in a second coil, which is spatially close to the first coil, and which has a much higher number of turns, an electrical high voltage is created.
  • the now electrical energy at the spark plug the previously established magnetic field collapses and the ignition coil discharges.
  • the second winding, high voltage, spark current and spark duration can be set as required when the internal combustion engine ignites.
  • an ignition coil which has a magnetically active I-core, which is surrounded by a first bobbin with a winding connected to the supply voltage and a second bobbin having a winding connected to a high voltage terminal , Furthermore, the device comprises a peripheral core, which encloses the two bobbin and forms a magnetic circuit with the I-core. In addition, a permanent magnet is arranged at the end of the I-shaped core.
  • DE 103 08 077 Al proposes to arrange the I-core and the peripheral core gap-free. As a result, however, the resulting by the capacitive coupling between the secondary winding and Umformkern potential of the peripheral core is reduced due to the capacitive coupling with the first bobbin.
  • the inventive device for energy storage and energy transformation with the features of claim 1 has the advantage over that a peripheral core can assume a higher potential. Furthermore, the device according to the invention has no undesirable mounting gaps or, due to tolerances of the individual components, gaps of different sizes.
  • the device according to the invention thus has a peripheral core with a high potential. This is inventively achieved in that an insulation is arranged between the I-core and the peripheral core. In particular, the insulation is provided on the longitudinal direction of the I-core lying ends. The insulation thus assumes the function of an air gap and separates the I-core from the peripheral core. Since the insulation has a defined, constant thickness, there are no problems with gap sizes of different size between the I-core and the peripheral core.
  • the device according to the invention can thus provide increased voltage requirements, for example in future spark plugs used in modern engine designs, e.g. Turbocharger, direct injection, lean concepts, candle wear, etc., find use meet.
  • the insulation further allows the I-core to experience a higher electrical capacitive charge, resulting in a reduced overall load on the device in accordance with the increased charge.
  • the first and second insulators between the I-core and the U-core are each a thin film.
  • this has the further advantage that a thickness of the film is constant, so that a defined and constant distance between the I core and peripheral core is defined.
  • the film preferably has a thickness between about 30 ⁇ m to about 100 ⁇ m, in particular about 50 ⁇ m.
  • the material of the film is preferably a plastic film, in particular a polyimide film used.
  • a plastic plate may also be used.
  • the insulation can be produced for example by spraying plastic onto the ends of the I-core. By spraying very thin insulators can be produced on the I-core.
  • the peripheral core is designed in several parts.
  • the peripheral core is composed of essentially L-shaped parts, in particular sheet metal.
  • Figure 1 is a schematic sectional view through an ignition coil according to an embodiment of the invention.
  • the ignition coil 1 shown in Figure 1 is a compact ignition coil comprising a peripheral core 2 and an I-core 3.
  • the peripheral core 2 encloses the I-core 3 and is made of a first part 2a and a second part 2b.
  • the two first and second parts 2a, 2b are substantially L-shaped.
  • the peripheral core and the I-core are made of coated sheets, for example.
  • the peripheral core 2 is further surrounded by a housing 4. - A -
  • a first bobbin 5 is arranged with a first winding 6, which is supplied with a vehicle electrical system current of a vehicle.
  • a second bobbin 7 is arranged adjacent to the first bobbin 5 and comprises a second winding 8. The number of turns of the second winding 8 is much higher than that of the first winding 6.
  • the second bobbin 7 surrounds the first bobbin. 5
  • the I-core 3 has a first end 3a and a second end 3b.
  • the second end 3b has, as shown in Figure 1, a greater width than the first end 3a.
  • a permanent magnet 9 is arranged at the second end 3b.
  • the permanent magnet 9 serves to further increase the magnetic energy.
  • a first insulation 10 is arranged on the permanent magnet 9.
  • a second insulation 11 is arranged at the first end 3 a of the I-core 3.
  • the first insulation 10 and the second insulation 11 are made of a thin film having a thickness of about 50 microns.
  • the film is a polyimide film and insulates the I-core 3 from the peripheral core 2. The thickness of the film is constant over the entire insulation surface.
  • the first insulation 10 and the second insulation 11 may be of any type, e.g. by gluing, on the permanent magnet 9 and the first end 3 a of the I-core are fixed.
  • the permanent magnet 9 is also fixed, for example, by gluing on the I-core 3.
  • the peripheral core 3 is further arranged completely isolated in the housing 4. As a result, an electrical charge of the peripheral core can be made, which is also called "floating.” Thus, the peripheral core 3 is no longer connected to the vehicle ground and charges up to a potential of a few kV, for example about 2 kV to 4 kV a "floating" circumferential core 3 is that an insulation system between high voltage-carrying components such as provided by the second bobbin 7 and the second winding 8 secondary winding and contact plates, etc., and the peripheral core 2 is relieved. Further, since insulation is provided between the circumferential core 2 and the I-core 3, there is thus no conductive connection between the peripheral core 2 and the I-core 3.
  • peripheral core 2 can assume a higher potential between about 6 kV to 8 kV, so that in comparison with the prior art
  • an isolation system to this potential difference is further relieved.
  • an optimized magnetic circuit of the ignition coil 1 can be achieved. Also occur according to the invention no problems with unwanted fluctuations of gap sizes of air gaps.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
EP07803387A 2006-09-21 2007-09-10 Dispositif pour l'accumulation d'énergie et la transformation d'énergie Active EP2067149B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006044435A DE102006044435A1 (de) 2006-09-21 2006-09-21 Vorrichtung zur Energiespeicherung und Energietransformierung
PCT/EP2007/059484 WO2008034734A1 (fr) 2006-09-21 2007-09-10 Dispositif pour l'accumulation d'énergie et la transformation d'énergie

Publications (2)

Publication Number Publication Date
EP2067149A1 true EP2067149A1 (fr) 2009-06-10
EP2067149B1 EP2067149B1 (fr) 2010-05-12

Family

ID=38920724

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07803387A Active EP2067149B1 (fr) 2006-09-21 2007-09-10 Dispositif pour l'accumulation d'énergie et la transformation d'énergie

Country Status (6)

Country Link
US (1) US20110239999A1 (fr)
EP (1) EP2067149B1 (fr)
CN (1) CN101517668B (fr)
AT (1) ATE467897T1 (fr)
DE (2) DE102006044435A1 (fr)
WO (1) WO2008034734A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8289117B2 (en) * 2010-06-15 2012-10-16 Federal-Mogul Corporation Ignition coil with energy storage and transformation
DE102011082232A1 (de) * 2011-04-04 2012-10-04 Robert Bosch Gmbh Zündspule mit verbessertem Wärmeverhalten
ITMI20110654A1 (it) * 2011-04-18 2012-10-19 Eldor Corp Spa Dispositivo per la trasformazione di energia
CN103489578B (zh) * 2013-06-30 2016-01-13 腾普(常州)精机有限公司 汽车火花塞点火器铁芯组及其生产方法
CN104006237A (zh) * 2014-06-05 2014-08-27 浙江康帕斯流体输送技术有限公司 一种用于压缩空气管道连接装置的密封元件
US10991507B2 (en) * 2015-04-15 2021-04-27 Mitsubishi Electric Corporation Ignition coil for internal combustion engine
CN107533903B (zh) * 2015-05-13 2019-11-22 三菱电机株式会社 点火线圈
WO2016181517A1 (fr) 2015-05-13 2016-11-17 三菱電機株式会社 Bobine d'allumage pour moteur à combustion interne
JP6416045B2 (ja) * 2015-06-18 2018-10-31 日立オートモティブシステムズ阪神株式会社 内燃機関用点火コイル
CN205900288U (zh) * 2016-07-21 2017-01-18 昆山凯迪汽车电器有限公司 涡轮增压点火线圈
JP7275825B2 (ja) * 2019-05-10 2023-05-18 株式会社デンソー 内燃機関用の点火コイル

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE742657C (de) * 1938-04-29 1943-12-09 Plathner Ernst Dipl Ing Verfahren zur Herstellung elektrischer Drosselspulen
NL173948C (nl) * 1951-11-20 Mississippi Chem Corp Werkwijze en inrichting voor het neutraliseren van salpeterzuur met ammoniak.
DE1255990B (de) * 1959-03-13 1967-12-07 Max Baermann Zuendspule zum Erzeugen elektrischer Funken und Schaltung mit einer solchen Spule
DE68906607T2 (de) * 1988-07-28 1993-10-28 Nippon Denso Co Zündspule.
US5257611A (en) * 1991-12-23 1993-11-02 Ford Motor Company Ignition coil assembly and method of manufacture thereof
JPH0845755A (ja) * 1994-08-02 1996-02-16 Aisan Ind Co Ltd 内燃機関用点火コイル
JP3382065B2 (ja) * 1995-06-09 2003-03-04 愛三工業株式会社 内燃機関用点火コイル
DE19542357A1 (de) * 1995-10-24 1997-04-30 Abb Patent Gmbh Schaltungsanordnung für einen AC/DC-Konverter mit Potentialtrennung und induktives Bauelement zur Verwendung in einer solchen Schaltungsanordnung
DE69720279T2 (de) * 1996-08-31 2003-09-25 Toyo Denso K.K., Tokio/Tokyo Zündspulenvorrichtung für Verbrennungsmotor
DE10308077B4 (de) * 2003-02-26 2005-10-13 Robert Bosch Gmbh Vorrichtung zur Energiespeicherung und Energietransformierung
DE10357349A1 (de) * 2003-12-09 2005-07-07 Robert Bosch Gmbh Zündspule
JP4349198B2 (ja) * 2004-04-30 2009-10-21 株式会社デンソー スティック形点火コイル

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008034734A1 *

Also Published As

Publication number Publication date
US20110239999A1 (en) 2011-10-06
DE102006044435A1 (de) 2008-03-27
CN101517668A (zh) 2009-08-26
ATE467897T1 (de) 2010-05-15
CN101517668B (zh) 2011-11-23
DE502007003789D1 (de) 2010-06-24
WO2008034734A1 (fr) 2008-03-27
EP2067149B1 (fr) 2010-05-12

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