EP2052394A2 - Verfahren zum herstellen einer spule, insbesondere einer zündspule für ein kraftfahrzeug - Google Patents
Verfahren zum herstellen einer spule, insbesondere einer zündspule für ein kraftfahrzeugInfo
- Publication number
- EP2052394A2 EP2052394A2 EP07788167A EP07788167A EP2052394A2 EP 2052394 A2 EP2052394 A2 EP 2052394A2 EP 07788167 A EP07788167 A EP 07788167A EP 07788167 A EP07788167 A EP 07788167A EP 2052394 A2 EP2052394 A2 EP 2052394A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- winding
- coil
- mandrel
- primary winding
- housing
- 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
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
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/02—Coils wound on non-magnetic supports, e.g. formers
- H01F2005/025—Coils wound on non-magnetic supports, e.g. formers wound on coaxial arrangement of two or more formers
-
- 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
- H01F2038/122—Ignition, e.g. for IC engines with rod-shaped core
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49071—Electromagnet, transformer or inductor by winding or coiling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49073—Electromagnet, transformer or inductor by assembling coil and core
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/5313—Means to assemble electrical device
Definitions
- the invention relates to a method for producing a coil, in particular an ignition coil for a motor vehicle.
- a coil which has an elongated coil housing.
- several, pre-assembled modules or components are used. These components include u.a. a rod-shaped magnetic core which is concentrically surrounded by a secondary coil body having a secondary winding and by a primary coil body having a primary winding.
- the coil housing is filled with an insulating resin.
- Such an ignition coil is inserted into the cylinder head of the engine in a corresponding receiving bore and contacted with the spark plug of the internal combustion engine.
- the receiving bore for the ignition coil is limited in diameter. This contradicts the requirement to provide the highest possible ignition energy for the spark plug, as this would require a maximum in terms of installation space in the diameter of the ignition coil.
- the primary wire for a primary winding is wound in a first step on a mandrel, which also serves as an inner part for an injection molding tool.
- the primary winding together with mandrel is then encapsulated with a plastic, wherein the plastic simultaneously forms the outer housing of the pencil ignition coil.
- the known primary winding is thus in terms of their radial extent a very favorable education possible because of a separate, the diameter the rod ignition coil enlarging primary coil body and is dispensed with an additional outer housing.
- the inventive method for producing a coil, in particular an ignition coil for a motor vehicle with the features of claim 1 has the advantage that it enables a simple and inexpensive production by reducing the space by dispensing with a separate primary coil body.
- connection ring which is connected in advance with the ends of the primary winding and together with the winding mandrel in the housing Coil is inserted.
- the winding mandrel In order to allow a particularly good transfer or stripping of the primary winding in the housing of the coil, it is provided in a further advantageous embodiment to provide an additional stripping element that holds the primary winding or fixed when the winding mandrel is pulled out of the housing of the coil.
- an additional stripping element instead of a stripping element, it is also conceivable to provide the winding mandrel with a variable diameter, such that for pulling out of the winding mandrel, the diameter of the winding mandrel is reduced so that the adhesion or bond between the winding mandrel and the primary winding when pulling out the winding mandrel from the housing will be annulled.
- Figure 2 shows a longitudinal section through a first mandrel with wound on the winding mandrel primary winding
- Figures 3 and 4 are cross-sections through a second mandrel during different working positions.
- the bar coil 10 shown in Figure 1 is used in particular as an ignition coil in internal combustion engines of motor vehicles, and is provided for direct contacting with a spark plug, not shown, which in turn is used together with the rod coil 10 in a shaft in the cylinder head of the internal combustion engine.
- the rod coil 10 includes in coaxial arrangement to a longitudinal axis 12 in a housing 13 made of plastic in a central position an elongated cylindrical core 14, which is also referred to as the I-core.
- the core 14 is made of layered magnetizable material and is part of an open magnetic circuit.
- a secondary coil body 18 Concentrically around the core 14, a secondary coil body 18 is arranged with a high-voltage secondary winding 19.
- the secondary winding 19 is surrounded by a primary winding 20.
- the primary winding 20 is surrounded with a small radial distance from a cylindrical portion 22 of the housing 13, which has a winding 19, 20 adapted longitudinal extent.
- the section 22 of the housing 13 in turn is enveloped without radial play by a longitudinally slotted sleeve-shaped return plate 23, which forms the outer shell in this area of the bar coil 10.
- the return plate 23 serves as Inference element of the magnetic circuit of the bar coil 10 of the leadership of the magnetic field and is also referred to as the outer core.
- metallic connector 27 are arranged, via which the primary winding 20 of the bar coil 10 is supplied with low voltage.
- the second end portion 26 includes a metallic ferrule 28 connected to the secondary winding 19, through which the high voltage of the bar coil 10 is dissipated to the spark plug (not shown).
- a connection ring 30 is provided, on the one hand with the
- the interior of the housing 13 is preferably filled with an insulating resin 33, which also fills in particular the radial gap between the primary winding 20 and the opposite secondary winding 19.
- the winding mandrel 35 has a cylindrical or preferably slightly conical shape, at least in the region provided for the primary winding 20.
- the length of the mandrel 35 is dimensioned so that at least the primary winding 20 and the ring 29 and the connecting ring 30 find space on it. It should be the
- Inner diameter of the ring 29 and the connecting ring 30 to be matched to the outer diameter of the winding mandrel 35 that a slight stripping of the ring 29 and the connecting ring 30 in the axial direction of the winding mandrel 35 is possible.
- the ring 29 and the connecting ring 30 are positioned at a corresponding distance from each other on the winding mandrel 35, whereupon subsequently the wire of the primary winding 30 in at least one layer between the ring 29 and the connecting ring 30 is wound onto the winding mandrel 35.
- winding mandrel 35 relative to a (not shown) wire dispenser rotatable and displaceable in the axial direction, or preferably characterized in that with fixed winding mandrel 35, the wire dispensing device rotates about the mandrel 35 and at the same time in the axial direction the winding mandrel 35 moves.
- the wire ends 36, 37 of the primary winding 20 are electrically contacted with the connection ring 30, for example, welded.
- the wire of the primary winding 20 may be formed as a so-called baked enamel wire.
- the baked enamel layer of the primary winding 20 is activated by a corresponding heat treatment, so that thereafter the primary winding 20 is formed as a compact, solid unit.
- the mandrel 35 is inserted together with the primary winding 20 in the housing 13 until the primary winding 20 is located at the intended position in the housing 13 ( Figure T).
- Figure T For stripping the primary winding 20 in the housing 13 of the winding mandrel 35 and the ring 29 then cooperates with a tubular stripping element 38 in the exemplary embodiment, which upon removal of the winding mandrel 35 from the
- the winding mandrel 35 to facilitate the stripping operation of the primary winding 20 of the winding mandrel 35 is slightly conical, such that the diameter of the winding mandrel 35 is reduced viewed in the direction of the connection ring 30.
- the intermediate layer 40 consists for example of a possibly coated paper or plastic film layer, which may be perforated if necessary.
- the intermediate layer 40 is here applied to the winding mandrel 35 before winding the primary winding 20 onto the winding mandrel 35 first, and then stripped together with the primary winding 20 in the housing 13.
- FIGS. 3 and 4 a modified winding mandrel 35a is shown in FIGS. 3 and 4.
- the mandrel 35a is characterized in that it is variable in diameter. In the example shown, this is realized by movable in the direction of the double arrows 41 segments 42, but of course other embodiments are conceivable. For winding up the primary winding 20 or the
- Interlayer 40 in this case has the winding mandrel 35a according to the figure 3 its largest diameter.
- the diameter of the winding mandrel 35a is reduced as shown in FIG 4, so that the adhesion of the intermediate layer 40 and the primary winding 20 is lifted to the winding mandrel 35a.
- the stripping element 38 can be dispensed with in the case of the modified winding mandrel 35a.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006037169A DE102006037169A1 (de) | 2006-08-09 | 2006-08-09 | Verfahren zur Herstellung einer Spule, insbesondere einer Zündspule für ein Kraftfahrzeug |
PCT/EP2007/058014 WO2008017631A2 (de) | 2006-08-09 | 2007-08-02 | Verfahren zum herstellen einer spule, insbesondere einer zündspule für ein kraftfahrzeug |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2052394A2 true EP2052394A2 (de) | 2009-04-29 |
EP2052394B1 EP2052394B1 (de) | 2012-03-21 |
Family
ID=38904715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07788167A Ceased EP2052394B1 (de) | 2006-08-09 | 2007-08-02 | Verfahren zum herstellen einer spule, insbesondere einer zündspule für ein kraftfahrzeug |
Country Status (5)
Country | Link |
---|---|
US (1) | US8230584B2 (de) |
EP (1) | EP2052394B1 (de) |
JP (1) | JP2010500744A (de) |
DE (1) | DE102006037169A1 (de) |
WO (1) | WO2008017631A2 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009278074A (ja) * | 2008-04-15 | 2009-11-26 | Denso Corp | 内燃機関用点火コイルおよびその製造方法 |
EP2619704B1 (de) | 2010-09-24 | 2018-01-10 | BlackBerry Limited | Verfahren und vorrichtung für differenzierte zugangskontrolle |
US10423248B2 (en) * | 2011-10-28 | 2019-09-24 | Wacom Co., Ltd. | Touch-sensitive system with motion filtering |
DE102011088519A1 (de) * | 2011-12-14 | 2013-06-20 | Metabowerke Gmbh | Stator für einen Elektromotor sowie Verfahren zur Herstellung eines Stators für einen Elektromotor |
US10381903B2 (en) | 2012-12-12 | 2019-08-13 | Metabo-Allee 1 | Method for producing a stator for an electric motor |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1121408B (de) * | 1956-01-13 | 1962-01-04 | Bosch Gmbh Robert | Zuendspule fuer Zuendanlagen von Brennkraftmaschinen und Verfahren zu ihrer Herstellug |
DE2346346C2 (de) | 1973-09-14 | 1982-06-09 | Robert Bosch Gmbh, 7000 Stuttgart | Zündtransformator zur Erzeugung von Hochspannungsimpulsen, insbesondere Zündanker |
JPH0819367B2 (ja) | 1987-12-01 | 1996-02-28 | 東洋インキ製造株式会社 | カラーチップの製造法 |
FR2630782B1 (fr) | 1988-04-28 | 1993-05-14 | Marchal Equip Auto | Bobine d'allumage pour l'allumage des moteurs a combustion interne de vehicules automobiles, et son procede de fabrication |
JPH02102706A (ja) | 1988-10-07 | 1990-04-16 | Katsuyoshi Harada | 脱水装置 |
JPH07109811B2 (ja) * | 1988-11-11 | 1995-11-22 | 株式会社日立製作所 | 内周巻線装着装置 |
DE4040604A1 (de) | 1990-12-19 | 1992-06-25 | Bosch Gmbh Robert | Verfahren und vorrichtung zur herstellung von spulen |
JPH077897A (ja) | 1993-06-21 | 1995-01-10 | Sony Corp | コイル形成用巻治具と巻線装置並びに巻線方法 |
US6655707B2 (en) * | 1994-08-22 | 2003-12-02 | Advanced Composites, Inc. | Net shape filament winding manufacturing process, articles made therefrom and composite bicycle fork and other components |
JP3381453B2 (ja) * | 1995-05-12 | 2003-02-24 | 株式会社デンソー | 電気巻線部品の巻線方法とコイル |
JP3817723B2 (ja) * | 1996-07-19 | 2006-09-06 | 石川島播磨重工業株式会社 | コイルの巻取り・巻戻し装置 |
JP3988230B2 (ja) | 1997-08-07 | 2007-10-10 | 株式会社デンソー | スティック型点火コイルの製造方法 |
JP4045631B2 (ja) | 1998-02-06 | 2008-02-13 | トヨタ自動車株式会社 | 点火コイル及びその製造方法 |
JP3422252B2 (ja) * | 1998-04-22 | 2003-06-30 | 株式会社日立製作所 | 高電圧トランスおよびそれを用いた点火トランス |
DE20012401U1 (de) | 2000-07-18 | 2001-11-29 | Robert Bosch Gmbh, 70469 Stuttgart | Stabspule für Zündanlagen |
DE10247411B4 (de) * | 2002-10-11 | 2012-12-20 | Robert Bosch Gmbh | Verfahren zur Herstellung einer bauraumoptimierten Primärdrahtwicklung für eine Stabzündspule |
JP4123029B2 (ja) * | 2003-04-01 | 2008-07-23 | 株式会社デンソー | 内燃機関用点火装置 |
DE20312503U1 (de) | 2003-08-11 | 2003-12-24 | Niggemeyer, Gert Günther, Ing.(grad.) | Stabförmiger Zündübertrager |
JP4969770B2 (ja) * | 2004-04-09 | 2012-07-04 | 株式会社デンソー | スティック型点火コイル及びその1次コイルアセンブリの組付け方法 |
KR100852925B1 (ko) | 2005-01-17 | 2008-08-19 | 혼다 기켄 고교 가부시키가이샤 | 보빈레스 코일 및 보빈레스 코일의 제조 방법 |
-
2006
- 2006-08-09 DE DE102006037169A patent/DE102006037169A1/de not_active Withdrawn
-
2007
- 2007-08-02 WO PCT/EP2007/058014 patent/WO2008017631A2/de active Application Filing
- 2007-08-02 EP EP07788167A patent/EP2052394B1/de not_active Ceased
- 2007-08-02 US US12/309,576 patent/US8230584B2/en not_active Expired - Fee Related
- 2007-08-02 JP JP2009523250A patent/JP2010500744A/ja active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO2008017631A2 * |
Also Published As
Publication number | Publication date |
---|---|
JP2010500744A (ja) | 2010-01-07 |
EP2052394B1 (de) | 2012-03-21 |
WO2008017631A3 (de) | 2008-04-10 |
WO2008017631A2 (de) | 2008-02-14 |
US20100018033A1 (en) | 2010-01-28 |
US8230584B2 (en) | 2012-07-31 |
DE102006037169A1 (de) | 2008-02-14 |
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