EP0230197A1 - Linke und rechte Leuchte für Fahrzeuge und deren Herstellungsverfahren - Google Patents

Linke und rechte Leuchte für Fahrzeuge und deren Herstellungsverfahren Download PDF

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Publication number
EP0230197A1
EP0230197A1 EP86402955A EP86402955A EP0230197A1 EP 0230197 A1 EP0230197 A1 EP 0230197A1 EP 86402955 A EP86402955 A EP 86402955A EP 86402955 A EP86402955 A EP 86402955A EP 0230197 A1 EP0230197 A1 EP 0230197A1
Authority
EP
European Patent Office
Prior art keywords
optical units
lamps
circuit
circuits
pair
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.)
Ceased
Application number
EP86402955A
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English (en)
French (fr)
Inventor
Jacques Virette
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.)
Valeo Vision SAS
Original Assignee
Cibie Projecteurs SA
Valeo Vision SAS
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 Cibie Projecteurs SA, Valeo Vision SAS filed Critical Cibie Projecteurs SA
Publication of EP0230197A1 publication Critical patent/EP0230197A1/de
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/19—Attachment of light sources or lamp holders
    • F21S43/195—Details of lamp holders, terminals or connectors

Definitions

  • the present invention relates generally to the optical units of motor vehicles, and relates in particular to a pair of two optical units each comprising several lamps capable of fulfilling the different light functions, for example at the rear of the vehicle.
  • the invention also relates to a method for producing such a pair of left and right optical units.
  • An optical unit generally comprises a set of lamps which are mounted on the same support and to which different light functions are assigned.
  • An optical unit In order to eliminate the manual wiring conventionally necessary to ensure the electrical connection of the lamps with their respective supply voltage and with earth, it is known in the prior art to electrically connect the lamps to the pins juxtaposed with a multiple plug by the through a circuit consisting of a set of thin conductive strips fixed in one way or another on the lamp holder.
  • the supply voltages of the various lamps are brought to the optical unit by a connector placed on the multiple plug during assembly, and the circuit ensures the distribution of the voltages to the associated lamps.
  • Circuits with cut conductive strips of the prior art are described for example in French patents Nos. 2 283 565 and 2 339 130. They comprise a set of conductive strips, most often nested one inside the other, which are initially connected together by bridges or breakable regions, in particular in order to preserve the coherence or mechanical integrity of the circuit. when it is fixed on its support. This attachment can be performed for example by riveting.
  • Another solution can consist in coating the whole of the circuit by overmolding of plastic material, leaving uncovered the regions which are intended for electrical contact with the lamps and the connector. These regions can for example be folded at right angles to the plane of the circuit.
  • each optical unit comprises at least one lamp with two filaments, intended to fulfill two distinct light signaling functions such as the position light function and the stop light function, which is desirable in particular to reduce the surface area of the optical units and / or reduce the cost
  • the position of the two-filament lamp vis-à-vis the cut-strip circuit is different depending on whether one is in the left optical unit or in the right optical unit. This is a consequence of the fact that the symmetry of the homologous lamps of the two blocks with respect to the median longitudinal vertical plane must be respected.
  • the present invention aims to overcome this drawback of the prior art and to propose a pair of optical units, for example for the rear light signaling of a vehicle, each equipped with at least one lamp with two filaments to fulfill two distinct light functions , whose respective cut-strip circuits are produced from the same starting circuit.
  • advantage is taken of the breakable regions conventionally initially provided for in a circuit with cut conductive strips, in order to ensure the integrity of all the conductive strips together for reasons related to the manufacturing and mounting process of this type of circuit, to selectively distribute two supply voltages to the lamps, depending on whether the circuit is used in the left optical unit or in the right optical unit.
  • the invention relates to a pair of left and right optical units for a motor vehicle, of the type each comprising a set of lamps, at least one of which comprises two filaments, to which different light signaling functions are assigned, the homologous lamps two optical units being arranged symmetrically, each optical unit further comprising a circuit with cut conductive strips to establish the distribution of the supply voltages and of the mass present on a multiple connection plug of the circuit towards the various lamps, the integrity of said circuit being initially provided by breakable regions between the conductive strips, characterized in that the cut-out strip circuits of the left and right optical units consist of the same starting circuit, and in that breakable regions of the circuits have been selectively broken so that the voltage distributions obtained, after setting ace of said circuits in the optical units, are symmetrical from one unit to another.
  • the invention also relates to a method for manufacturing a pair of left and right optical units for a motor vehicle, each optical unit comprising a set of lamps, at least one of which comprises two filaments, to which different light signaling functions are assigned.
  • the homologous lamps of the two optical units being arranged symmetrically, characterized in that it comprises the steps consisting in: - make two circuits with identical cut strips, the integrity of which is ensured using breakable regions between said strips, the strips being capable of distributing to said lamps the electrical voltages present on a multiple connection plug, - mount the two circuits in the left and right optical units, and - Selectively breaks some of said breakable regions of each of the circuits so as to obtain respectively two symmetrical distributions of electrical voltages to the lamps.
  • FIG. 1 With reference to the drawing, and first of all to FIG. 1, there is shown, in an initial state, a circuit with cut conductive strips, suitable for being used in a block of rear signaling lights of a motor vehicle.
  • the circuit can be used indifferently in the left block or in the right block, with a certain number of simple modifications to be carried out after its assembly.
  • the circuit is fixed on a support 10 in the form of a plate, made of an electrically insulating material such as a plastic material.
  • the support 10 is shaped so that it can be placed behind the juxtaposed reflectors (not shown) of an optical unit and to receive a set of lamps, in the present example filament lamps, intended to fill the rear light functions of the vehicle.
  • the letters P, S, C, R, B will be used to designate respectively the light functions of position light, stop light, flashing light (change of direction indicator), reversing light and fog from a rear light unit, the letter M indicating the mass.
  • the circuit may be fixed to the surface of the support 10 by any suitable means, such as riveting. It may also be embedded, after an overmolding operation, in the support plate 10, leaving uncovered the conductive regions of the circuit intended to establish electrical contact with the electrodes of the lamps and with a connector providing the supply voltages for the various lamps.
  • the circuit itself consists of a number of thin conductive strips which are intended to make the connection electric between a set of protruding pins constituting a multiple plug 12 for the connection of the optical unit with a connector (represented in dotted lines and designated by the reference 14) which brings the various supply voltages of the lamps as well as the ground, and conductive connection surfaces located in the vicinity of four generally circular openings intended to receive the terminal ends of the caps of four filament lamps (s) (not shown in FIG. 1).
  • the cut strip circuit and its support 10 are symmetrical with respect to a vertical central plane Y-Y perpendicular to the plane of the circuit. We will therefore describe in detail below only the left half of the circuit.
  • Three conductive strips 101, 102, 103 extend vertically downward from three associated projecting pins 121, 122, 123 of the multiple plug 12.
  • the strips 101 and 111 are in continuity with each other, via a right angle bend, just like the strips 102 and 112.
  • Three breakable bridges in the form of conductive regions of width reduced, connect certain conductive strips together.
  • a first bridge 201 connects the lower end of the strip 102 to the adjacent end of the strip 113, the latter also being connected to the lower end of the strip 103 by a bridge 202.
  • a third bridge 203 connects the lower end of the strip 103 to the horizontal lower mass strip 114.
  • These three bridges, 201, 202, 203, define three breakable regions which, during the process of manufacturing the circuit and placing the latter on its support, serve to maintain the integrity of the various metal strips between them. In automated manufacturing processes, this integrity allows all of the conductive strips to be attached in a single step to the support 10, in this way precisely positioning the strips relative to one another, while ensuring extremely mounting fast.
  • Such a circuit can be produced extremely easily by a single cutting operation (for example by stamping) in a sheet of conductive metal.
  • breakable bridges to temporarily connect the unitary strip 101-111 with the rest of the circuit.
  • the circuit is symmetrical with respect to a vertical central plane YY perpendicular to the plane of the circuit.
  • the various constituent parts of the right half of the circuit are the counterparts of the parts of the left half, and are designated by the same reference numbers supplemented by a "premium".
  • the left and right horizontal strips 114 and 114 ⁇ together form a single ground strip, which is used to ground the lateral peripheral surfaces of the lamp bases which will be placed in the openings 181, 182, 181 ⁇ and 182 ⁇ .
  • the six pins 121, 122, 123, 123 ⁇ , 122 ⁇ and 121 ⁇ are arranged in alignment and regularly spaced from each other, so as to define the multiple plug 12 mentioned above, on which the connector can be mounted. 14, indicated in dotted lines, which brings the electrical supply voltages of the various lamps and the ground.
  • FIG. 1 will of course be fitted with fixing means (not shown) to hold the support provided with its circuit in place on the assembly, for example unitary, of the reflectors of the optical unit considered.
  • fixing means not shown
  • flexible positioning tabs 22 intended to cooperate in abutment with the rear face of said reflectors.
  • the regions of the openings 181, 182, 181 ⁇ and 182 ⁇ for the bases of the lamps, as well as possibly the associated regions of the reflectors, will be suitably shaped both to ensure the mechanical fixing of said lamps and for the earthing of the outer periphery of their caps.
  • This type of assembly is well known in the art and it is not necessary to return to it in detail. It can simply be indicated that the conductive regions which surround the aforementioned openings may, for example, have tabs bent at 90 ° to extend along the caps and ensure electrical contact with the latter.
  • FIGS. 2 and 3 are shown circuits which, obtained as will be seen later from the circuit of FIG. 1, are mounted respectively in the left and right rear light units of the same vehicle.
  • FIGS. 2 and 3 In order for these figures to retain a certain clarity, a certain number of the reference numbers indicated above in the description of FIG. 1 have been deliberately omitted therefrom.
  • the openings 181, 182, 181 ⁇ and 182 ⁇ respectively receive the LPS, LC, LB and LR lamps, the LPS lamp being a lamp with two independent filaments intended to ensure the double position light function and brake light, the other lamps being with a single filament.
  • flexible tongues 24 are fixed on the five connection surfaces 161, 162, 163, 161 ⁇ and 163 ⁇ to ensure the electrical connection of said surfaces respectively with the electrodes associated with the filaments which fulfill the functions S, P, C, B and R, the electrodes associated with the functions S and P being arranged as indicated on the same lamp with two filaments.
  • voltages VP, VS, VB, VC and VR are applied respectively to the six pins of the multiple plug. 12, in the order shown in the drawings, namely, from left to right, VP, VS, VC, VM, VR, VB, this order being obtained by suitably wiring the connector 14.
  • holes may be provided in the support opposite them, for example circular holes (not shown in the figures to keep them clear).
  • the rupture can then be carried out by punching, for example in a single step using a tool forming a triple punch.
  • the voltage VR present on the surface 163 ⁇ for the associated lamp LR, is also present on the surface 162 ⁇ .
  • this situation is in no way embarrassing because the connection of the LB lamp, which has only one filament, uses only the surface 161 ⁇ , which provides the appropriate voltage.
  • the voltage distributions obtained in the two optical units are generally symmetrical with respect to the median longitudinal vertical plane of the vehicle, so as to adapt to the aforementioned symmetry of the various lamps with respect to this same plane. Note, however, that there is no complete symmetry of the supply signals on the multiple card. Indeed, the relative position of the two electrodes of the bi-filament LPS lamp not being inverted from one optical unit to another (since two copies of the same lamp are used), the associated voltages VP and VS are only symmetrical on the pins of the multiple plug.
  • the starting circuit of FIG. 1 is symmetrical with respect to a vertical central plane perpendicular to the plane of the circuit, and the two distributions by selective rupture of breakable bridges have the effect of making the two circuits obtained asymmetrical in themselves, but symmetrical to each other, at least electrically, with respect to the longitudinal vertical plane of the vehicle, or even enantiomorphic, so that they adapt to the symmetry of position of the homologous lamps of the two left and right optical units with respect to this plane.
  • Figures 4 to 6 show a second embodiment of the invention.
  • the circuit shown is mounted on a support 10 ⁇ in which are formed five openings for receiving the caps of five lamps from the same optical unit.
  • openings 381 to 384 are arranged at the vertices of a rectangle, and a fifth opening 385 extends outside of said rectangle and defines with the openings 382 and 384 an isosceles triangle.
  • the multiple plug 32 has six protruding pins 321 to 326, from top to bottom in Figure 4.
  • a first conductive strip 301 extends from the pin 321 and has two connection surfaces 361, 362 in the vicinity of the openings 381 and 382, respectively. It is connected by a first breakable bridge 401 to a conductive strip 302 which defines an electrical path substantially in the form of "U" to surround all the lamp openings 381 to 385 and define a ground contact with the bases of said lamps (not illustrated in FIG. 4), in a manner analogous to the embodiment of FIGS. 1 to 3.
  • a conductive strip 303 extends from the pin 326 and has two connection surfaces 363 and 364 in the vicinity of the openings 383 and 384, respectively. This strip is connected to the ground strip 302 by a second breakable bridge 402.
  • Pins 322 and 325 are respectively connected by two conductive strips 304 and 305 to two connection surfaces 365, 366 adjacent to the openings 381 and 383.
  • Pins 323 and 324 are respectively connected, by two conductive strips 306 and 307, to two surfaces 367 and 368 connection located in the vicinity of the openings 382 and 384, and are also connected respectively by two breakable bridges 403 and 404 at one end of a last conductive strip 308 whose opposite end has a connection surface 369 close to the opening 385.
  • breakable bridges 40 which are not useful for making selective distributions between the supply voltages and the lamps, but which only serve to give the circuit the integrity necessary during its manufacturing and its assembly.
  • This embodiment differs from the previous one, in particular in that, to fulfill the position light function, both the corresponding filament of the LPS lamp and a second lamp are used monofilament LP, as shown in Figures 5 and 6. This gives a larger illuminating surface for this function.
  • FIGS. 5 and 6 are shown two circuits with cut strips obtained from the starting circuit described above, mounted respectively in the left and right optical units, after the installation of the various lamps in their sockets (not shown) .
  • the electrical contact between the electrodes of the lamps and their associated connection surface is ensured by flexible metal tongues 24, added for example by riveting on said surfaces and in elastic support against said electrodes.
  • the breakable bridges 401 and 404 were broken to define a first distribution of the six voltages VP, VS, VB, VR, VC and VM (ground) towards the corresponding electrodes of the five lamps LPS, LP (second position lamp connected in parallel with the position filament of the lamp LPS), LB, LR, LC and towards their bases.
  • the bridge 402 which is not sectioned ensures the grounding of the conductive strip 302 via the strip 303, and the bridge 403 makes it possible to bring the voltage VB to the surface 369 adjacent to the lamp LB.
  • the circuit of FIG. 6 is intended for the right optical unit of the same vehicle and has been turned 180 ° in the plane of the sheet of the drawing.
  • the five lamps can in this way be arranged symmetrically with their counterparts in the left optical unit, as illustrated.
  • this second circuit obtained just like the first from the starting circuit of FIG. 5, these are the breakable bridges 402 and 403 which have been cut. This ensures a second distribution of the voltages present on the multiple plug (now located on the right) to the various lamps. It can be noted that, by this selective rupture combined with the 180 ° reversal mentioned above, one obtains for the left and right circuits a symmetrical (or enantiomorphic) electrical behavior with respect to the median longitudinal vertical plane.
  • connection surfaces 361 to 369 on the starting circuit, of which only six (determined for each optical unit as a function of the electrical distribution carried out) receive tabs 24.
  • the invention also applies both to circuits in which the conductive strips are attached to one of the surfaces of an electrically insulating flat support than to circuits in which said strips are embedded in a plate of insulating material, as indicated above.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP86402955A 1985-12-31 1986-12-29 Linke und rechte Leuchte für Fahrzeuge und deren Herstellungsverfahren Ceased EP0230197A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8519496A FR2592343B1 (fr) 1985-12-31 1985-12-31 Paire de blocs optiques gauche et droit pour vehicule, et procede de fabrication desdits blocs optiques
FR8519496 1985-12-31

Publications (1)

Publication Number Publication Date
EP0230197A1 true EP0230197A1 (de) 1987-07-29

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EP86402955A Ceased EP0230197A1 (de) 1985-12-31 1986-12-29 Linke und rechte Leuchte für Fahrzeuge und deren Herstellungsverfahren

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EP (1) EP0230197A1 (de)
FR (1) FR2592343B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2690501A1 (fr) * 1992-04-22 1993-10-29 Valeo Vision Circuit à bandes conductrices découpées pour bloc de feux de signalisation de véhicule automobile et blocs de feux gauche et droit incorporant de tels circuits.
DE19812493A1 (de) * 1998-03-21 1999-09-23 Itt Mfg Enterprises Inc Lampenträger für eine Fahrzeugleuchte

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29816256U1 (de) 1998-09-10 1998-11-05 Hella Kg Hueck & Co, 59557 Lippstadt Fahrzeugsignalleuchte

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0060900A1 (de) * 1981-03-19 1982-09-29 Westfälische Metall Industrie KG Hueck & Co. Mehrkammerleuchte für Fahrzeuge
FR2532256A1 (fr) * 1982-08-27 1984-03-02 Seima Italiana Spa Dispositif d'assemblage pour la connexion des dispositifs d'eclairage sur les vehicules automobiles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0060900A1 (de) * 1981-03-19 1982-09-29 Westfälische Metall Industrie KG Hueck & Co. Mehrkammerleuchte für Fahrzeuge
FR2532256A1 (fr) * 1982-08-27 1984-03-02 Seima Italiana Spa Dispositif d'assemblage pour la connexion des dispositifs d'eclairage sur les vehicules automobiles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2690501A1 (fr) * 1992-04-22 1993-10-29 Valeo Vision Circuit à bandes conductrices découpées pour bloc de feux de signalisation de véhicule automobile et blocs de feux gauche et droit incorporant de tels circuits.
DE19812493A1 (de) * 1998-03-21 1999-09-23 Itt Mfg Enterprises Inc Lampenträger für eine Fahrzeugleuchte

Also Published As

Publication number Publication date
FR2592343B1 (fr) 1989-07-13
FR2592343A1 (fr) 1987-07-03

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