EP0310792A2 - Lampe de signalisation à monter sur des plaques de circuits - Google Patents

Lampe de signalisation à monter sur des plaques de circuits Download PDF

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Publication number
EP0310792A2
EP0310792A2 EP88113348A EP88113348A EP0310792A2 EP 0310792 A2 EP0310792 A2 EP 0310792A2 EP 88113348 A EP88113348 A EP 88113348A EP 88113348 A EP88113348 A EP 88113348A EP 0310792 A2 EP0310792 A2 EP 0310792A2
Authority
EP
European Patent Office
Prior art keywords
base
tabs
indicator lamp
power supply
lamp 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
Application number
EP88113348A
Other languages
German (de)
English (en)
Other versions
EP0310792A3 (en
EP0310792B1 (fr
Inventor
Gerhard Dr. Maier
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0310792A2 publication Critical patent/EP0310792A2/fr
Publication of EP0310792A3 publication Critical patent/EP0310792A3/de
Application granted granted Critical
Publication of EP0310792B1 publication Critical patent/EP0310792B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/05—Two-pole devices
    • H01R33/20—Two-pole devices having concentrically or coaxially arranged contacts
    • H01R33/205—Two-pole devices having concentrically or coaxially arranged contacts secured to structure or printed circuit board
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
    • H01K1/46—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp supported by a separate part, e.g. base, cap
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs

Definitions

  • the invention relates to an indicator lamp for installation in printed circuit boards according to the preamble of claim 1.
  • Lamps of this type are used in particular for illuminating dashboards, for example in motor vehicles or aircraft.
  • Such an indicator lamp is known for example from DE-OS 28 24 107 and 30 20 309, wherein the power supply wires are soldered or welded to the base contacts. In the first case, the two parts are joined together before the lamp bulb is installed, and in the second case after the installation.
  • a disadvantage of this type of assembly is that the security of the electrical connection is not guaranteed to the desired extent, since the welding points during assembly of the lamp bulb and during operation due to the constant mechanical stress (for example vibrations occurring during travel or flight) to be able to solve.
  • the object of the invention is to provide an indicator lamp with a base made of insulating material, in which the reliability of the connection between the power supply wires and the base contacts is improved.
  • the invention advantageously achieves an inseparable connection with high contact reliability.
  • the electrical contact is made through the welding spots.
  • the fixation of the end of the power supply which is achieved by the form-fitting of the tabs, acts as a positioning aid during the welding process.
  • a fusion weld achieved using a laser is advantageously used.
  • an alloy is formed in the area of the welding point between the materials of the power supply and the base contact.
  • the quality of the connection can be improved in that the material of the base contact is matched to the material of the power supply wire (F-wire).
  • a special treatment of the material e.g. nickel plating or copper plating
  • the material which is particularly preferred for the base contacts chrome-nickel-alloyed stainless steel, ensures not only the willingness to alloy but also corrosion protection, without the need for special pre- or post-treatment.
  • the non-contact weld can also be used in relatively inaccessible places.
  • the indicator lamp shown schematically in FIGS. 1 and 2 is a small incandescent lamp with a lamp bulb 1 which fits into the receptacle 4 of a base 2 is used.
  • the piston 1 is provided with a pinch 3.
  • the pump connector 5 is melted off in the middle, while a power supply 6 (only one is visible in the figures) is led out to the side of it, on the broad sides of the pinch 3.
  • the power supplies are made of copper sheathed wire with a diameter of approx. 0.3 to 0.35 mm. They are bent outwards in a U-shape.
  • the base 2 consists of an approximately cubic plastic body 7 with chamfered corners, on which a cylindrical flange 8 rotates at the top. Socket contacts 10 are held in two opposite vertical slots 9 in the body 7 by means of resilient tabs 11.
  • the lamp bulb 1 is centered in the base 2 by elastic webs (not visible) which are integrated in the base, similar to that described in EP-PS 70 014.
  • the lower region of the base contacts 10, including the tabs 11, can be viewed through a rectangular window 13 in the body 7.
  • each base contact 10 At the lower end of each base contact 10, a pair of tabs 14 is integrally formed, which includes the upwardly bent ends 15 of the power supply 6 on the outside of the base contacts 10 in a form-fitting manner.
  • the two tabs 14 are dimensioned so that a joint 16 remains between them after bending.
  • the end 15 of the power supply and the two tabs 14 are connected by two common welding points 17.
  • a powerful CO2 or Nd: YAG laser is used for this.
  • the window 13 makes it possible to carry out this welding only after the piston has been installed.
  • a visual inspection of the connection between the power supply and the tab as well as the spread tab 11 can be carried out in the window.
  • the material of the power supply lines and that of the tabs 14 are homogeneously fused together.
  • the power supply lies on the inside of the base contact and the tabs are bent inwards accordingly.
  • the positive locking and welding takes place before the piston is assembled. With this type of connection, the connection point is particularly well protected.
  • FIGS. 3 and 4 A further preferred embodiment is shown in FIGS. 3 and 4.
  • the same reference numbers correspond to the same features in comparison with FIGS. 1 and 2.
  • the base 2 is in this embodiment a hexagonal plastic body 7 'without a window.
  • the socket contacts 18 are divided into three to Reduce overall height. They consist of three axially aligned sections 19, 20, 21, which are connected to one another by bevels 22, 23. The bevels are inclined at 45 ° to the longitudinal axis.
  • the pair of contact tabs 12 is integrated in a manner similar to that in the first exemplary embodiment. Furthermore, the tabs 11 are attached laterally to the uppermost section 19. Only this uppermost section 19 is guided in the slot 9.
  • the first slope 22 sits on a shoulder 24 of the plastic body 7 ', so that the central portion 20 is set back inwards.
  • the second bevel 23 extends into the piston-receiving cavity 4 of the plastic body below the height of the pinch 3.
  • the tabs 14 are formed laterally on the lowermost section 21 and are bent around the end 15 of the U-shaped curved power supply.
  • the welding attachment is carried out in a similar manner as in the first exemplary embodiment on the outside at the lowest section of the base contact before the piston is installed.
  • the tabs are cut out of the "meat" of the base contact, similar to the lower contact tab. They are not necessarily molded onto the lower end of the base contacts.

Landscapes

  • Fastening Of Light Sources Or Lamp Holders (AREA)
EP88113348A 1987-09-21 1988-08-17 Lampe de signalisation à monter sur des plaques de circuits Expired - Lifetime EP0310792B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8712722U 1987-09-21
DE8712722U DE8712722U1 (de) 1987-09-21 1987-09-21 Anzeigelampe zum Einbau in Leiterplatten

Publications (3)

Publication Number Publication Date
EP0310792A2 true EP0310792A2 (fr) 1989-04-12
EP0310792A3 EP0310792A3 (en) 1990-04-11
EP0310792B1 EP0310792B1 (fr) 1993-10-20

Family

ID=6812279

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88113348A Expired - Lifetime EP0310792B1 (fr) 1987-09-21 1988-08-17 Lampe de signalisation à monter sur des plaques de circuits

Country Status (2)

Country Link
EP (1) EP0310792B1 (fr)
DE (2) DE8712722U1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03116681U (fr) * 1990-03-13 1991-12-03
FR2669773A1 (fr) * 1990-11-26 1992-05-29 Socop Sa Lampe de signalisation et son procede de fabrication.
EP0786791A1 (fr) * 1996-01-25 1997-07-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe électrique
DE19705738A1 (de) * 1997-02-14 1998-08-20 Trw Fahrzeugelektrik Leuchtelement, insbesondere zur Beleuchtung von Funktionssymbolen oder zur Signalisierung von Funktionen in Kraftfahrzeugen
EP0991096A1 (fr) * 1998-09-30 2000-04-05 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe électrique

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3818019C2 (de) * 1988-05-27 1995-04-06 Hella Kg Hueck & Co Leuchte
DE10158633A1 (de) * 2001-11-29 2003-06-12 Hella Kg Hueck & Co Befestigungsvorrichtung für Lichtquellen in Fahrzeugleuchten

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3717842A (en) * 1971-02-26 1973-02-20 Perfection Electrical Prod Inc Method of connecting aluminum wire to electrical terminals
GB2022233A (en) * 1978-06-01 1979-12-12 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Display illuminator
DE3020309A1 (de) * 1980-05-29 1981-12-03 Philips Patentverwaltung Gmbh, 2000 Hamburg Elektrische lampe mit einem sockel aus isoliermaterial
EP0042625A1 (fr) * 1980-06-25 1981-12-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe indicatrice pour montage dans un appareil électrique
US4687264A (en) * 1986-07-03 1987-08-18 Amp Incorporated Dual slot electrical contact and method of making same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3717842A (en) * 1971-02-26 1973-02-20 Perfection Electrical Prod Inc Method of connecting aluminum wire to electrical terminals
GB2022233A (en) * 1978-06-01 1979-12-12 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Display illuminator
DE3020309A1 (de) * 1980-05-29 1981-12-03 Philips Patentverwaltung Gmbh, 2000 Hamburg Elektrische lampe mit einem sockel aus isoliermaterial
EP0042625A1 (fr) * 1980-06-25 1981-12-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe indicatrice pour montage dans un appareil électrique
US4687264A (en) * 1986-07-03 1987-08-18 Amp Incorporated Dual slot electrical contact and method of making same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03116681U (fr) * 1990-03-13 1991-12-03
FR2669773A1 (fr) * 1990-11-26 1992-05-29 Socop Sa Lampe de signalisation et son procede de fabrication.
EP0488924A1 (fr) * 1990-11-26 1992-06-03 Socop Sa Lampe de signalisation et son procédé de fabrication
EP0786791A1 (fr) * 1996-01-25 1997-07-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe électrique
US6031323A (en) * 1996-01-25 2000-02-29 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Electric lamp with mechanical connection
DE19705738A1 (de) * 1997-02-14 1998-08-20 Trw Fahrzeugelektrik Leuchtelement, insbesondere zur Beleuchtung von Funktionssymbolen oder zur Signalisierung von Funktionen in Kraftfahrzeugen
DE19705738C2 (de) * 1997-02-14 1999-02-18 Trw Fahrzeugelektrik Fassung für ein Leuchtelement zum Einbau in einer Leiterplatte, insbesondere zur Beleuchtung von Funktionssymbolen oder zur Signalisierung von Funktionen in Kraftfahrzeugen
EP0991096A1 (fr) * 1998-09-30 2000-04-05 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe électrique
US6259192B1 (en) 1998-09-30 2001-07-10 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Electric lamp

Also Published As

Publication number Publication date
EP0310792A3 (en) 1990-04-11
DE8712722U1 (de) 1987-11-12
DE3885053D1 (de) 1993-11-25
EP0310792B1 (fr) 1993-10-20

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