EP1563519A1 - Electrical contacting of thin enameled wires of secondary windings of ignition coils - Google Patents
Electrical contacting of thin enameled wires of secondary windings of ignition coilsInfo
- Publication number
- EP1563519A1 EP1563519A1 EP03761368A EP03761368A EP1563519A1 EP 1563519 A1 EP1563519 A1 EP 1563519A1 EP 03761368 A EP03761368 A EP 03761368A EP 03761368 A EP03761368 A EP 03761368A EP 1563519 A1 EP1563519 A1 EP 1563519A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ignition coil
- contact
- connection arrangement
- contact sleeve
- arrangement according
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P3/00—Other installations
- F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
-
- 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
- H01F5/00—Coils
- H01F5/04—Arrangements of electric connections to coils, e.g. leads
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- H01R4/2495—Insulation penetration combined with permanent deformation of the contact member, e.g. crimping
Definitions
- the invention relates to an electrical connection arrangement for producing an ignition coil, in particular a pencil ignition coil with an ignition coil rod with a high-voltage outlet.
- Ignition coils generate high voltage sparks.
- this jumps over to its electrodes and thus ignites the air-gasoline mixture of an internal combustion engine, for example.
- this spark plug is supplied with a high-voltage ignition coil. Inside the ignition coil is a primary winding and a corresponding one
- Secondary winding provided. One end of the primary winding is coupled to an ignition starter switch, and the other end is connected to a so-called breaker.
- the secondary winding that is to say the winding which is responsible for the generation of the ignition spark, is connected inside the ignition coil to one end of the primary winding, so that it is connected to ground.
- the other end of the secondary winding is connected to the high-voltage outlet, which in turn is either connected to an ignition cable leading to the spark plug or on which the spark plug is arranged directly.
- the secondary winding itself consists of a thin wire, which is coated with a corresponding lacquer layer, in order to avoid contacting the individual wires when winding around a specific carrier body or coil former. After the secondary windings have been wound on a carrier, the ends of the respective wires are contacted.
- thermal contacting methods are generally known, for example soldering or welding.
- the object of the invention is to produce a connection arrangement between an ignition coil rod of an ignition coil and a secondary or primary winding, which is inexpensive and easy to implement.
- the contacting according to the invention is integrated into already existing components and that simple processes can thereby be reliably produced.
- the "cold" contacting method proposed here has the advantage over the previous method that no additional system costs are necessary. Furthermore, assembly steps are reduced and a reduction in exclusion parts can also be recorded by the embodiment according to the invention.
- Another important advantage of the invention is that no installation space has to be optimized to carry out the contacting. This means that there is no free space in the area of contacting e.g. must be kept for welding guns, soldering irons or the like.
- this contact sleeve On its outer circumference, this contact sleeve has contact tabs which, after the contact sleeve is pushed onto the coil former, contact the wire of the secondary winding through their spring-like configuration, in which the contact tab of the contact sleeve breaks through the insulation, for example a varnish of the wires of the secondary winding.
- the contact sleeve is to be guided over the coil body until it abuts a stop which is formed on an ignition coil rod.
- the diameter of the contact sleeve being greater than or at least equal to the diameter of the secondary body and twice the wire diameter.
- the contact sleeve is arranged in a very simple manner in the contact area of the ignition coil rod the contacting area of the ignition coil rod, it is mounted in the ignition coil housing with the high-voltage outlet.
- the contact tabs are pressed onto the winding of the secondary winding and break through the insulation layer of the wire, so that a permanent one electrical contact is established.
- the free end of the winding of the secondary wire is preferably wound over a pin-like formation, which is located at the end of the ignition coil rod. This pin then plunges into the high voltage outlet. This prevents the ignition coil from failing due to field surges at the end of the wire.
- a space-saving alternative provides that the pin-like design of the ignition coil rod has predetermined breaking points. This leads to the fact that during the assembly process of the assembly into the ignition coil housing on the high-voltage outgoing side, the pin breaks and does so in such a way that contact is ensured despite the break.
- Fig. 1 is a perspective view of an ignition coil with one side for the high voltage outlet and another side for the low voltage outlet;
- FIG. 2 shows a sectional view through the ignition coil according to FIG. 1;
- FIG. 3 shows an enlarged illustration of the perspective view of the side of the high-voltage outlet of the ignition coil rod
- FIG. 4 shows a section through the enlarged representation of the side of the high-voltage outlet according to FIG. 3;
- 5 shows a perspective view of the contact sleeve for mounting on the side of the high-voltage outlet; 6 shows a sectional illustration of the contact sleeve according to FIG. 5;
- FIG. 7 shows an enlarged partial illustration of the contact tabs according to the invention of the contact sleeve according to FIG. 6.
- the ignition coil 1 shows a perspective view of an ignition coil 1.
- the ignition coil 1 comprises an ignition coil housing 2 and an ignition coil rod 3 arranged in the ignition coil housing 2. Furthermore, the ignition coil 1 has a side for a high-voltage outlet H and a side for the low-voltage outlet N.
- the side of the low-voltage outlet N is provided in order to make contact with a power supply not shown in the drawing, the side of the high-voltage outlet H being provided for connection to an ignition cable or a spark plug (not shown in the drawing).
- Fig. 2 the ignition coil 1 shown in Fig. 1 is shown in a sectional view; the areas shown are those which relate to the features of the invention which are essential to the invention and which are shown in more detail in the following figures.
- a contact area 20 (FIG. 3) is provided on the ignition coil rod 3, which provides the arrangement of a secondary winding 22 on a coil former 21. After the winding of the secondary wire 22 has ended, it is guided through a bore 23 into the contacting region 20 and wound further until it reaches a groove 24 and a pin 25. The free end of the secondary wire 22 is tied to the pin 25.
- a contact sleeve 26 shown in FIGS. 4 to 7 is now slipped over the contact area 20.
- This contact sleeve 26 has at least one axial slot 27, which preferably does not extend over the entire length.
- at least one contact tab 28 is provided on the circumferential surface of the contact sleeve 26, which are provided for making contact with the secondary winding 22 in the contact area 20 on the side of the high-voltage outlet H. Due to the axial slot 27, the contact sleeve 26 is now guided over the contact area 20 of the ignition coil rod 3 on the side of the high-voltage outlet H up to a stop 29.
- the widening of the contact sleeve 26 during the sliding process prevents the secondary winding 22 on the side of the high-voltage outlet H from being damaged in any way.
- the contact sleeve 26 is designed in such a way that it reaches a press fit immediately after being pulled over the contact area, so that the contact sleeve 26 is prevented from falling off again.
- This assembly formed from the ignition coil rod 3 and contact sleeve 26, is now, as shown in FIG. 4, mounted in the high-voltage outlet H of the ignition coil housing 2.
- the ignition coil housing 2 has a cup-like configuration 30 for receiving the free end of the ignition coil rod 3.
- a recess 31 is provided to receive the pin 25 of the ignition coil rod 3.
- the cup-like configuration 30 of the ignition coil housing 2 ensures that the contact tabs 28 of the contact sleeve 26 are pressed in a defined manner in the direction of an arrow 32 (FIG. 4).
- the insulation layer of the secondary wire 22 is broken through and permanent electrical contact is made.
- the free wire end of the secondary wire 22, which is wound on the pin 25, dips into the recess 31.
- the stop 29, which is arranged on the side of the ignition coil rod 3, rests on a shoulder 33 on the side of the ignition coil housing 2.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10251840A DE10251840A1 (en) | 2002-11-07 | 2002-11-07 | Electrical connector for rod-shaped ignition coil, has contact sleeve with tongues which penetrate insulation of secondary coil to make contact when sleeve is assembled |
DE10251840 | 2002-11-07 | ||
PCT/DE2003/002234 WO2004042748A1 (en) | 2002-11-07 | 2003-07-03 | Electrical contacting of thin enameled wires of secondary windings of ignition coils |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1563519A1 true EP1563519A1 (en) | 2005-08-17 |
EP1563519B1 EP1563519B1 (en) | 2015-06-17 |
Family
ID=32115335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03761368.4A Expired - Lifetime EP1563519B1 (en) | 2002-11-07 | 2003-07-03 | Electrical contacting of thin enameled wires of secondary windings of ignition coils |
Country Status (5)
Country | Link |
---|---|
US (1) | US7075400B2 (en) |
EP (1) | EP1563519B1 (en) |
JP (1) | JP4411214B2 (en) |
DE (1) | DE10251840A1 (en) |
WO (1) | WO2004042748A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201700075884A1 (en) * | 2017-07-06 | 2019-01-06 | Tyco Electronics Amp Italia Srl | ELECTRIC CONNECTOR |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10251841A1 (en) * | 2002-11-07 | 2004-05-19 | Robert Bosch Gmbh | Electrical connector for rod-shaped ignition coil, has contact spring which is displaced across contact region, and makes contact with secondary coil when in end position |
DE102005047184A1 (en) * | 2005-09-30 | 2007-04-05 | Robert Bosch Gmbh | Ignition coil for internal combustion engine has magnetically active core with injection moulded plastics coil body with winding area for wire which is free of parting lines in this area |
DE102006020170A1 (en) | 2006-05-02 | 2007-11-08 | Robert Bosch Gmbh | Ignition coil, in particular for an internal combustion engine of a motor vehicle |
ITUB20169987A1 (en) * | 2016-01-14 | 2017-07-14 | Tyco Electronics Amp Italia Srl | CONNECTOR FOR MAGNETIC COIL |
JP7189168B2 (en) * | 2020-02-07 | 2022-12-13 | 株式会社藤商事 | game machine |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3830763C2 (en) | 1988-09-09 | 1998-04-09 | Siemens Ag | Electrical connection device |
DE69719556T2 (en) | 1996-08-31 | 2004-07-01 | Toyo Denso K.K. | Ignition coil device for internal combustion engines |
JP3473817B2 (en) * | 1996-10-18 | 2003-12-08 | 株式会社デンソー | Ignition coil for internal combustion engine |
US6522232B2 (en) * | 2001-04-26 | 2003-02-18 | Delphi Technologies, Inc. | Ignition apparatus having reduced electric field HV terminal arrangement |
US6724289B2 (en) * | 2001-08-17 | 2004-04-20 | Delphi Technologies, Inc. | Ignition apparatus having feature for shielding the HV terminal |
JP3997463B2 (en) * | 2001-11-26 | 2007-10-24 | 株式会社デンソー | Ignition coil for internal combustion engine |
-
2002
- 2002-11-07 DE DE10251840A patent/DE10251840A1/en not_active Withdrawn
-
2003
- 2003-07-03 WO PCT/DE2003/002234 patent/WO2004042748A1/en active Application Filing
- 2003-07-03 JP JP2004549040A patent/JP4411214B2/en not_active Expired - Fee Related
- 2003-07-03 US US10/534,371 patent/US7075400B2/en not_active Expired - Lifetime
- 2003-07-03 EP EP03761368.4A patent/EP1563519B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO2004042748A1 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201700075884A1 (en) * | 2017-07-06 | 2019-01-06 | Tyco Electronics Amp Italia Srl | ELECTRIC CONNECTOR |
EP3425736A1 (en) * | 2017-07-06 | 2019-01-09 | Tyco Electronics AMP Italia S.r.l. | Electrical connector |
US10535930B2 (en) | 2017-07-06 | 2020-01-14 | TE Connectivity Italia Distribution S.r.l. | Electrical connector with a flexible sleeve |
Also Published As
Publication number | Publication date |
---|---|
US7075400B2 (en) | 2006-07-11 |
EP1563519B1 (en) | 2015-06-17 |
WO2004042748A1 (en) | 2004-05-21 |
DE10251840A1 (en) | 2004-05-19 |
JP4411214B2 (en) | 2010-02-10 |
JP2006505924A (en) | 2006-02-16 |
US20060097834A1 (en) | 2006-05-11 |
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