EP0550536B1 - Kontaktstift mit keramikisolierung - Google Patents
Kontaktstift mit keramikisolierung Download PDFInfo
- Publication number
- EP0550536B1 EP0550536B1 EP91916873A EP91916873A EP0550536B1 EP 0550536 B1 EP0550536 B1 EP 0550536B1 EP 91916873 A EP91916873 A EP 91916873A EP 91916873 A EP91916873 A EP 91916873A EP 0550536 B1 EP0550536 B1 EP 0550536B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ceramic insulation
- contact pin
- pct
- contact
- insulation
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
- H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
- H01R13/415—Securing in non-demountable manner, e.g. moulding, riveting by permanent deformation of contact member
Definitions
- the invention relates to a contact pin with ceramic insulation, which is provided at one end with a tab for receiving a pole piece and has a jump at the other end, which is supported on a corresponding jump of the flat channel leading through the ceramic insulation.
- Contact pins of the type mentioned are known. They serve as a power supply for electric lamps, especially for halogen lamps.
- GB-A-2,093,632 teaches a lower part of a lamp in which a contact pin is guided through a ceramic insulation with a slot-shaped recess and protrudes from the ceramic insulation with a contact tab.
- a disadvantage of the known contact pins is that the connection of the current-carrying conductor to the ceramic insulation is not wobble-free, which leads to vibrations of the incandescent filament and thus negatively influences its service life.
- the metal-insulation connection is wobble-free, but at higher temperatures to which the contact pins are exposed, volatile substances gas out, which are deposited on the reflector of the lamp. The insulation loses its shape at correspondingly high temperatures.
- the invention seeks to remedy this.
- the invention solves the problem in that the first jump is followed by a second jump which has an undercut in front of the contact tab and which protrudes slightly from the channel and is provided with a compression.
- the second jump has an undercut.
- the contact pin 1 made of electrically conductive material such as steel, copper, tungsten and the like is provided with a ceramic insulation 2.
- the ceramic insulation 2 has a flat channel 3, which is provided with a crack 4.
- the contact pin 1 is provided with a tab 5 for receiving a pole piece and with at least one jump 6, with which it is supported on the jump 4 of the flat channel 3.
- the contact pin has a further crack 7 which protrudes slightly (1-3 mm) from the flat channel 3.
- This step 7 is provided with a compression 8, whereby the contact pin 1 is positively and wobble-free connected to the ceramic insulation 2 in cooperation with step 6.
- the step 7 is provided with an undercut 9. Hot upsetting has proven to be particularly advantageous.
- the contact pin is brought to the thermoforming temperature by electrical means.
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Insulating Bodies (AREA)
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
- Resistance Heating (AREA)
- Adornments (AREA)
- Spark Plugs (AREA)
- Massaging Devices (AREA)
- Multi-Conductor Connections (AREA)
Description
- Gegenstand der Erfindung ist ein Kontaktstift mit Keramikisolierung, der an einem Ende mit einer Lasche zur Aufnahme eines Polschuhs versehen ist und am anderen Ende einen Sprung aufweist, der sich auf einem entsprechenden Sprung des durch die Keramikisolierung führenden flachen Kanals abstützt.
- Kontaktstifte der genannten Art sind bekannt. Sie dienen als Stromzuführung für elektrische Lampen, insbesondere für Halogenlampen.
- GB-A-2,093,632 lehrt ein Unterteil einer Lampe, bei dem ein Kontaktstift durch eine Keramikisolierung mit schlitzförmiger Ausnehmung geführt ist und mit einer Kontaktfahne aus der Keramikisolierung ragt. Durch die Führung des Kontaktstiftes in der schlitzförmigen Ausnehmung sowie durch stark verbreiterte Stauchungen der Kontaktfahne oberhalb der Keramikisolierung kann dafür gesorgt werden, daß der locker gehaltene Kontaktstift nicht aus der Keramikisolierung fallen kann.
- Nachteilig bei den bekannten Kontaktstiften ist, daß die Verbindung des stromführenden Leiters mit der Keramikisolierung nicht wackelfrei ist, was zu Schwingungen der Glühwendel führt und somit deren Lebensdauer negativ beeinflußt. Bei mit Kunststoff umspritzten Kontaktstiften ist die Verbindung Metall-Isolierung zwar wackelfrei, bei höheren Temperaturen, denen die Kontaktstifte ausge-setzt sind, gasen jedoch flüchtige Stoffe aus, die sich auf dem Reflektor der Lampe niederschlagen. Bei entsprechend hohen Temperaturen verliert die Isolierung ihre Gestalt.
- Hier will die Erfindung Abhilfe schaffen. Die Erfindung löst die Aufgabe dadurch, daß dem ersten Sprung ein zweiter Sprung folgt, der vor der Kontaktfahne eine Hinterschneidung aufweist und der geringfügig aus dem Kanal herausragt und mit einer Stauchung versehen ist.
- Der zweite Sprung weist eine Hinterschneidung auf.
- Die durch die Erfindung erreichten Vorteile sind im wesentlichen in der wackelfreien, formschlüssigen Verbindung zwischen metallischem Kontaktstift und Keramikisolierung zu sehen.
- Im folgenden wird die Erfindung anhand der Zeichnungen, die Ausführungsbeispiele darstellen, näher erläutert. Es zeigt
- Figur 1 eine Ansicht des Kontaktstiftes mit Keramikisolierung teilweise geschnitten;
- Figur 2 die Draufsicht von Figur 1.
- Der Kontaktstift 1 aus elektrisch leitendem Material, wie Stahl, Kupfer, Wolfram und dergleichen ist mit einer Keramikisolierung 2 versehen. Die Keramikisolierung 2 weist einen flachen Kanal 3 auf, der mit einem Sprung 4 versehen ist. Der Kontaktstift 1 ist mit einer Lasche 5 zur Aufnahme eines Polschuhs und mit mindestens einem Sprung 6 versehen, mit dem er sich am Sprung 4 des flachen Kanals 3 abstützt. Bei der Ausführungsform gemäß Figuren 1 und 2 weist der Kontaktstift einen weiteren Sprung 7 auf, der geringfügig (1 - 3 mm) aus dem flachen Kanal 3 herausragt. Dieser Sprung 7 ist mit einer Stauchung 8 versehen, wodurch im Zusammenwirken mit Sprung 6 der Kontaktstift 1 formschlüssig und wackelfrei mit der Keramikisolierung 2 verbunden wird. Der Sprung 7 ist mit einer Hinterschneidung 9 versehen. Als besonders vorteilhaft hat sich das Warmstauchen herausgestellt. Hierfür wird der Kontaktstift auf elektrischem Wege auf Warmformtemperatur gebracht.
Claims (1)
- Kontaktstift (1) mit Keramikisolierung (2), der an einem Ende mit einer Lasche (5) zur Aufnahme eines Polschuhs versehen ist und am anderen Ende eine Kontaktfahne und einen Sprung (6) aufweist, der sich auf einem entsprechenden Sprung (4) des durch die Keramikisolierung (2) führenden flachen Kanals (3) abstützt, dadurch gekennzeichnet, daß dem ersten Sprung (6) ein zweiter Sprung (7) folgt, der vor der Kontaktfahne eine Hinterschneidung (9) aufweist und der geringfügig aus dem Kanal (3) herausragt und mit einer Stauchung (8) versehen ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4030408A DE4030408A1 (de) | 1990-09-26 | 1990-09-26 | Kontaktstift mit keramikisolierung |
DE4030408 | 1990-09-26 | ||
PCT/EP1991/001827 WO1992005605A1 (de) | 1990-09-26 | 1991-09-25 | Kontaktstift mit keramikisolierung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0550536A1 EP0550536A1 (de) | 1993-07-14 |
EP0550536B1 true EP0550536B1 (de) | 1996-12-18 |
Family
ID=6414995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91916873A Expired - Lifetime EP0550536B1 (de) | 1990-09-26 | 1991-09-25 | Kontaktstift mit keramikisolierung |
Country Status (14)
Country | Link |
---|---|
US (1) | US5360354A (de) |
EP (1) | EP0550536B1 (de) |
JP (1) | JPH06503915A (de) |
KR (1) | KR100227442B1 (de) |
AT (1) | ATE146626T1 (de) |
CA (1) | CA2092526C (de) |
DE (2) | DE4030408A1 (de) |
ES (1) | ES2097819T3 (de) |
GR (1) | GR3022694T3 (de) |
IE (1) | IE76736B1 (de) |
MY (1) | MY107693A (de) |
NO (1) | NO306088B1 (de) |
PT (1) | PT99053A (de) |
WO (1) | WO1992005605A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001033517A (ja) * | 1999-07-26 | 2001-02-09 | Enplas Corp | コンタクトピン、コンタクトピン組立体及び電気部品用ソケット |
DE10147615A1 (de) * | 2001-09-27 | 2003-04-24 | Volkswagen Ag | Kontaktelement |
US7610079B2 (en) | 2006-07-25 | 2009-10-27 | Ast Gmbh | Shock wave imaging system |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3812324A (en) * | 1971-07-08 | 1974-05-21 | Itt | Glow coil ignitor |
DE8104771U1 (de) * | 1981-02-20 | 1982-08-05 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München | Sockel einer halogengluehlampe |
DE3830188A1 (de) * | 1988-09-06 | 1990-03-15 | Licentia Gmbh | Kontaktelement fuer einen motorschaltschrankeinschub |
-
1990
- 1990-09-26 DE DE4030408A patent/DE4030408A1/de not_active Withdrawn
-
1991
- 1991-09-19 MY MYPI91001709A patent/MY107693A/en unknown
- 1991-09-25 CA CA002092526A patent/CA2092526C/en not_active Expired - Fee Related
- 1991-09-25 JP JP3515242A patent/JPH06503915A/ja active Pending
- 1991-09-25 PT PT99053A patent/PT99053A/pt not_active Application Discontinuation
- 1991-09-25 US US08/030,026 patent/US5360354A/en not_active Expired - Lifetime
- 1991-09-25 ES ES91916873T patent/ES2097819T3/es not_active Expired - Lifetime
- 1991-09-25 AT AT91916873T patent/ATE146626T1/de not_active IP Right Cessation
- 1991-09-25 KR KR1019930700700A patent/KR100227442B1/ko not_active IP Right Cessation
- 1991-09-25 IE IE336891A patent/IE76736B1/en not_active IP Right Cessation
- 1991-09-25 WO PCT/EP1991/001827 patent/WO1992005605A1/de active IP Right Grant
- 1991-09-25 EP EP91916873A patent/EP0550536B1/de not_active Expired - Lifetime
- 1991-09-25 DE DE59108425T patent/DE59108425D1/de not_active Expired - Lifetime
-
1993
- 1993-03-02 NO NO930761A patent/NO306088B1/no not_active IP Right Cessation
-
1997
- 1997-02-27 GR GR970400375T patent/GR3022694T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
NO930761L (no) | 1993-03-02 |
US5360354A (en) | 1994-11-01 |
NO930761D0 (no) | 1993-03-02 |
PT99053A (pt) | 1993-10-29 |
CA2092526C (en) | 2001-09-11 |
KR100227442B1 (ko) | 1999-11-01 |
CA2092526A1 (en) | 1992-03-27 |
ATE146626T1 (de) | 1997-01-15 |
WO1992005605A1 (de) | 1992-04-02 |
NO306088B1 (no) | 1999-09-13 |
IE76736B1 (en) | 1997-11-05 |
MY107693A (en) | 1996-05-30 |
ES2097819T3 (es) | 1997-04-16 |
DE4030408A1 (de) | 1992-04-02 |
GR3022694T3 (en) | 1997-05-31 |
EP0550536A1 (de) | 1993-07-14 |
KR930702797A (ko) | 1993-09-09 |
DE59108425D1 (de) | 1997-01-30 |
JPH06503915A (ja) | 1994-04-28 |
IE913368A1 (en) | 1992-04-08 |
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