EP0552168A1 - Hochspannungsanschlüsse an zündspulen. - Google Patents
Hochspannungsanschlüsse an zündspulen.Info
- Publication number
- EP0552168A1 EP0552168A1 EP91915501A EP91915501A EP0552168A1 EP 0552168 A1 EP0552168 A1 EP 0552168A1 EP 91915501 A EP91915501 A EP 91915501A EP 91915501 A EP91915501 A EP 91915501A EP 0552168 A1 EP0552168 A1 EP 0552168A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ignition
- ignition cable
- cable
- holding part
- shrink tube
- 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
Definitions
- the invention relates to an ignition coil with a high-voltage connection according to the preamble of the main claim. It is already known from DE-OS 35 06 929 a high voltage connection of an ignition cable to an ignition coil. Here the ignition cable end is inserted into an opening of a connection tower and contacted with a tapered contact pin, the contact pin being electrically connected to the end of a high-voltage winding via a contact wire.
- the connection tower, in the opening of which the ignition cable leads, is sealed against moisture by a grommet.
- plug contacts for connecting the high-voltage cable to the high-voltage winding.
- These plug contacts can be insulating plastic molded parts.
- Such molded plastic parts do not always ensure low-loss transmission, particularly when the voltage is extremely high, for example if moisture has penetrated there.
- the plastic molded part would have to be dimensioned larger.
- this has the disadvantage that the connection point has much larger dimensions and that the weight of the ignition system also increases.
- a high-voltage connection is to be developed which eliminates these disadvantages and, with the lowest possible weight, ensures low-loss transmission of the high voltage from the ignition coil to the ignition cable.
- the ignition system according to the invention with the characterizing features of the main claim has the advantage over the known that the high-voltage connection has small dimensions and thus also a low weight and that the contacting is also very well protected from moisture by multiple overlapping of different components.
- FIG. 1 shows an ignition coil high-voltage winding with the high-voltage connection of an ignition cable
- FIG. 2 shows the high-voltage winding with ignition cable in the housing with a cast resin mirror.
- FIG. 1 and 2 show sections of the ignition coil of an ignition system with secondary winding 7 and primary winding 10 arranged in a housing 9.
- a contact part 1 on the two high-voltage ends of the secondary winding 7 is in each case with an ignition cable 2 electrically conductively connected, a shrink tube 3 being pulled over the end of the ignition cable, for better connection of the ignition cable and casting resin.
- the ignition cable 2 with shrink tube 3 is in a holding part 4, the transition point being sealed by an adhesive 5 and the ignition cable 2 protruding from the ignition coil being covered by an additional molded shrink part 6 at the transition point.
- FIG. 2 shows, in addition to a primary connection 11, the connection point between the contact part 1 and the ignition cable 2, the casting resin level 8 being shown here, up to which the housing 9 of the ignition coil is filled with hardenable casting resin.
- each of the contact parts 1 of the secondary winding 7 is connected to one of the ignition cables 2 in an electrically conductive and mechanically fixed manner.
- the ignition cable end lies within the ignition coil in the casting resin with which the ignition coil is poured out. Due to their material properties, cast resin and ignition cables only make a very bad connection.
- the end of the ignition cable is covered with the shrink tube 3.
- This shrink tube 3 has the property of connecting better to the outside with the casting resin and, due to its adhesive-like surface, forming a moisture-resistant connection with the ignition cable on the inside. Without additional measures, the ignition cable would be subjected to high mechanical stress at the potting compound / air / cable transition point.
- the ignition cable is immovably embedded in the casting resin and is movable after exiting the casting resin, ie there is a risk that the ignition cable will become detached from the casting resin.
- the ignition cable ends with the shrink tube 3 are pushed through corresponding openings in the holding part 4 made of plastic before they are connected to the contact parts 1 with the secondary winding 10.
- the resulting structural unit according to FIG. 1 is then inserted into the housing 9 according to FIG. 2, the holding part 4 being somewhat removed from the Casting compound protrudes and so converts the transition point casting compound / air / cable into the transition point casting compound / holding part / cable.
- This holding part 4 thus takes over the mechanical function of the previously usual plug contact, but has the advantage that its dimensions are significantly smaller. To this transition z.
- the molded shrink part 6 is now pushed with its one end over the end of the holding part 4 protruding from the cast resin mirror, lies with its other end against the ignition cable 2 and is attached to these parts in a moisture-tight manner by the adhesive 5.
- the various connecting parts such as shrink tubing, holding part and molded shrink tubing overlap at their transitions.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4032280A DE4032280A1 (de) | 1990-10-11 | 1990-10-11 | Hochspannungsanschluesse an zuendspulen |
DE4032280 | 1990-10-11 | ||
PCT/DE1991/000710 WO1992007370A1 (de) | 1990-10-11 | 1991-09-06 | Hochspannungsanschlüsse an zündspulen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0552168A1 true EP0552168A1 (de) | 1993-07-28 |
EP0552168B1 EP0552168B1 (de) | 1994-07-27 |
Family
ID=6416089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91915501A Expired - Lifetime EP0552168B1 (de) | 1990-10-11 | 1991-09-06 | Hochspannungsanschlüsse an zündspulen |
Country Status (5)
Country | Link |
---|---|
US (1) | US5543772A (de) |
EP (1) | EP0552168B1 (de) |
JP (1) | JPH06501814A (de) |
DE (2) | DE4032280A1 (de) |
WO (1) | WO1992007370A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001244135A (ja) * | 2000-02-28 | 2001-09-07 | Hitachi Ltd | 内燃機関用点火コイル |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2930011A (en) * | 1957-11-22 | 1960-03-22 | Westinghouse Electric Corp | Transformers with molded containers |
US4161776A (en) * | 1977-07-13 | 1979-07-17 | Denki Onkyo Co., Ltd. | Flyback transformer with high tension connector |
JPS608412Y2 (ja) * | 1980-03-12 | 1985-03-25 | 三洋電機株式会社 | フライバツクトランス |
US4587942A (en) * | 1983-11-07 | 1986-05-13 | R. E. Phelon Company | Breakerless ignition system and method of manufacture thereof |
DE3506929A1 (de) * | 1985-02-27 | 1986-08-28 | Robert Bosch Gmbh, 7000 Stuttgart | Zuendvorrichtung mit einem hochspannungsanschluss |
US4683454A (en) * | 1985-10-31 | 1987-07-28 | Automatic Switch Company | Solenoid actuator with electrical connection modules |
KR910004117Y1 (ko) * | 1987-06-04 | 1991-06-15 | 미쓰비시전기 주식회사 | 회전 검출장치 |
JPH01140706A (ja) * | 1987-11-27 | 1989-06-01 | Hitachi Ltd | 内燃機関用点火コイル |
-
1990
- 1990-10-11 DE DE4032280A patent/DE4032280A1/de not_active Withdrawn
-
1991
- 1991-09-06 US US07/988,968 patent/US5543772A/en not_active Expired - Fee Related
- 1991-09-06 DE DE59102383T patent/DE59102383D1/de not_active Expired - Fee Related
- 1991-09-06 WO PCT/DE1991/000710 patent/WO1992007370A1/de active IP Right Grant
- 1991-09-06 JP JP3514316A patent/JPH06501814A/ja active Pending
- 1991-09-06 EP EP91915501A patent/EP0552168B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9207370A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0552168B1 (de) | 1994-07-27 |
WO1992007370A1 (de) | 1992-04-30 |
DE4032280A1 (de) | 1992-04-16 |
JPH06501814A (ja) | 1994-02-24 |
US5543772A (en) | 1996-08-06 |
DE59102383D1 (de) | 1994-09-01 |
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