EP0634882A2 - Elément de contact - Google Patents

Elément de contact Download PDF

Info

Publication number
EP0634882A2
EP0634882A2 EP94110937A EP94110937A EP0634882A2 EP 0634882 A2 EP0634882 A2 EP 0634882A2 EP 94110937 A EP94110937 A EP 94110937A EP 94110937 A EP94110937 A EP 94110937A EP 0634882 A2 EP0634882 A2 EP 0634882A2
Authority
EP
European Patent Office
Prior art keywords
contact
holder
element according
contact element
contact part
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
EP94110937A
Other languages
German (de)
English (en)
Other versions
EP0634882B1 (fr
EP0634882A3 (fr
Inventor
Jörg Koch
Jagdish Singh
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.)
Hirschmann Electronics GmbH and Co KG
Original Assignee
Hirschmann Electronics GmbH and Co KG
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 Hirschmann Electronics GmbH and Co KG filed Critical Hirschmann Electronics GmbH and Co KG
Publication of EP0634882A2 publication Critical patent/EP0634882A2/fr
Publication of EP0634882A3 publication Critical patent/EP0634882A3/fr
Application granted granted Critical
Publication of EP0634882B1 publication Critical patent/EP0634882B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • 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
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/17—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member on the pin
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/016—Heaters using particular connecting means

Definitions

  • the invention relates to a contact element according to the preamble of claim 1.
  • a contact element is known in the form of soldered connections, for example in the busbar connection of the heating conductors of vehicle rear window heaters.
  • this type of connection has proven to be unsuitable, particularly for series production, because machine soldering in a machine is not possible without damage to the contact surface due to the special material selection and attachment of the contact surface required for application to glass.
  • the known solder connections of such contact points are made manually even in large quantities.
  • this procedure is complicated and requires particularly experienced professionals.
  • a still high reject rate of up to 1.5% cannot be avoided.
  • extensive tests are necessary to determine the errors and to avoid complaints as far as possible, so that the known connection is burdened with disproportionately high manufacturing costs.
  • the invention is therefore based on the object of providing a contact element of the type mentioned at the outset which is as simple as possible, cost-saving and can be produced mechanically with a low reject rate.
  • the contact reliability can be easily adapted to the requirements of the individual case by appropriate choice of the size of the contact pressure and the contact area and the material of the contact part.
  • the contact part is equipped with a large plate made of highly conductive material (copper) resting on the busbar.
  • the contact element into a contact and a holding part enables largely independent designs of these two parts and thus an optimization with regard to their function.
  • the holding part can be glued to the pane without impairing the contact.
  • the choice of materials is also without influence on the other part.
  • the clamping contact is realized by at least one clamping screw which, although it has to be actuated, on the other hand enables an arbitrarily high contact pressure and thus enables adaptation to the most varied requirements.
  • the compression spring can be a separate part, which is arranged, for example, around a mandrel. A much lower effort is achieved when the compression spring is not loose, but is either attached to the contact part or to the contact holder or - unless different materials of the actual contact part and the spring are required - is in one piece with the contact part.
  • a design of the contact element according to claim 7 is particularly advantageous, in which the contact part is detachably fastened in the contact holder, so that in the event of repairs or a replacement of the glass carrier, the supply line including the contact part does not have to be dismantled but only has to be detached from the contact holder.
  • the smallest possible thickness of the contact element is required for many applications.
  • An embodiment according to claim 8 is particularly suitable for this because it enables a minimal height above the glass support.
  • a releasable fastening according to claim 9 has the advantage that no measures are necessary to produce the fastening, since the locking takes place automatically when the contact part and holder are put together, and that only a simple operation is required to release the locking, namely the pushing out a locking lug from a locking projection.
  • these locking elements can be attached to the contact holder and contact part or to the compression spring.
  • the compression spring which is integral with or attached to the contact part, engages behind a projection of the contact holder with the free end part.
  • An embodiment of the contact element according to claim 10 is particularly advantageous for applications in which the connecting line is already assembled with a plug pin and then only has to be plugged into the simplest socket.
  • the contact holder can be attached to the glass carrier in any manner.
  • This mechanical stability of the attachment is further increased by a design of the contact holder made of ceramic (claim 12), because the temperature-dependent expansion coefficients of glass and ceramic are similar, so that the mechanical stresses between the cable holder and the glass support are so low even with strong temperature fluctuations that they Do not significantly affect the strength of the bracket.
  • Figures 1 and 2 each show a partially sectioned perspective view of a first and a second embodiment in principle.
  • a contact holder 1 made of insulating material is provided, which is glued to a metal foil 4 which is designed as a busbar for heating wires 2 and is applied to a vehicle rear window 3.
  • the contact holder 1 is shaped like a lid with three identical edge parts 5, a shorter connection-side edge part 5 'and a cover part 6.
  • the edge parts 5 are glued to the busbar 4 with their free bottom surfaces 7, the bottom part 7' of the edge part 5 'and the Busbar 4 remains an opening for the introduction of a contact part.
  • the contact part 8 is in two parts: it consists of a copper plate 9 and a leaf spring 10, which is clamped with one end portion 11 of the flanged plug-side end part 12 of the copper plate 9 and with the other, stop-side end portion 13 when mounted Contact element rests under pressure on the inner surface 14 of the cover part 6.
  • the stripped end 16 of a copper braid band 18 provided with an insulating jacket 17 is soldered onto the connection-side end part 15.
  • the contact part 8 provided with the copper strip 18 is inserted with the plug-side end part 12 ahead through the funnel-shaped opening between the bottom surface 7 'and the busbar 4 into the contact holder 1, the copper plate 9 being pressed by the pressure on the cover part 6 supporting leaf spring 10 rests with the entire lower surface on the busbar 4 and contacts it.
  • the end face of the connection-side end section 13 also engages behind the inner shoulder 19 of the connection-side edge part 5 'and is thereby secured against slipping out of the contact holder 1 in an absolutely vibration-proof manner.
  • this latching is simple by pressing down the leaf spring 10 by means of a pin-shaped object (for example a screwdriver blade) passed through an opening 20 of the cover part 6.
  • the contact holder 1 is very simple and inexpensive to manufacture as a series part in the die casting process.
  • the contact part 8 is also suitable for machine production with a minimum reject rate, both with regard to the production of the copper plate 9 and the leaf spring 10 and their clamp connection (stamping and bending method) and the soldered connection of the copper plate 9 and copper strip 18.
  • the separation into an actual contact piece (copper plate 9) and a leaf spring 10 generating the contact pressure also gives the advantage that the material for these parts can be optimally adapted to the respective requirements.
  • the contact element for high currents in that the actual contact piece is designed as a plate 9 made of highly conductive material (copper), the leaf spring 10 made of spring plate acting on the entire width of the copper plate 8 by means of a strong spring bears extensively on the busbar 4 to be contacted.
  • the contact part 21 is also a one-piece stamped and bent part made of spring sheet metal, which can also be produced practically free of rejects, the section of which in the contact holder 1 consists of an upper part 22 and a lower part which is angled by 180 ° and bears against the busbar 4 23 exists.
  • a tongue acting as a compression spring 24 is punched out of the upper part 22 and bent out in such a way that it rests under pressure on the inner surface 14 of the cover part 6 and at the same time with its free end edge on the shoulder 19.
  • This locking bracket is also very easily detachable here by means of a pin-shaped object to be pressed through the opening 20 onto the compression spring 24.
  • the stripped wire 26 of a cable 28 provided with an insulating jacket 27 is mechanically soldered to the connection-side end part 25 of the contact part 21. The connection is made in the manner already described in the exemplary embodiment according to FIG. 1.
  • this embodiment is characterized by an even more cost-effective production and, since the contact piece consists of spring plate, is particularly suitable for applications with currents that are not too high.

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Resistance Heating (AREA)
  • Bipolar Transistors (AREA)
  • Bipolar Integrated Circuits (AREA)
  • Semiconductor Memories (AREA)
EP94110937A 1993-07-17 1994-07-14 Elément de contact Expired - Lifetime EP0634882B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9310699U 1993-07-17
DE9310699U DE9310699U1 (de) 1993-07-17 1993-07-17 Kontaktelement

Publications (3)

Publication Number Publication Date
EP0634882A2 true EP0634882A2 (fr) 1995-01-18
EP0634882A3 EP0634882A3 (fr) 1995-07-12
EP0634882B1 EP0634882B1 (fr) 1999-02-17

Family

ID=6895712

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94110937A Expired - Lifetime EP0634882B1 (fr) 1993-07-17 1994-07-14 Elément de contact

Country Status (3)

Country Link
EP (1) EP0634882B1 (fr)
DE (2) DE9310699U1 (fr)
ES (1) ES2127853T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU717353B3 (en) * 1999-03-16 2000-03-23 Tyco Electronics Pty Limited Improved flat panel connector
GB2357638A (en) * 1999-12-24 2001-06-27 Pilkington Plc An electrical terminal for a window
WO2008134669A1 (fr) * 2007-04-26 2008-11-06 Exatec, Llc Fixation mécanique de bornes électriques à des vitrages en plastique
US9472875B2 (en) 2011-11-25 2016-10-18 Japan Aviation Electronics Industry, Ltd. Wire-to-board connector
US20210121968A1 (en) * 2018-03-22 2021-04-29 Central Glass Company, Limited Method of producing a vehicle glass assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003302259A1 (en) * 2002-11-28 2004-06-18 Asahi Glass Company, Limited Electrical connection structure for conductor formed on glass surface

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1104595A (fr) * 1953-05-27 1955-11-22 Saint Gobain Raccords électriques pour éléments de résistance sur des plaques de verre
US3117829A (en) * 1960-06-23 1964-01-14 Minnesota Mining & Mfg Terminal plug and block
DE1190074B (de) * 1961-06-06 1965-04-01 Lucas Industries Ltd Kabelschuh zum Anschluss eines elektrischen Widerstandsleiters
DE3841351A1 (de) * 1988-12-08 1990-06-13 Philips Patentverwaltung Anschlussvorrichtung fuer plattenfoermige bauelemente
FR2646968A1 (fr) * 1989-05-12 1990-11-16 Boyeldieu Andre Dispositif de connexion pour circuit de chauffage et de desembuage d'une glace

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1104595A (fr) * 1953-05-27 1955-11-22 Saint Gobain Raccords électriques pour éléments de résistance sur des plaques de verre
US3117829A (en) * 1960-06-23 1964-01-14 Minnesota Mining & Mfg Terminal plug and block
DE1190074B (de) * 1961-06-06 1965-04-01 Lucas Industries Ltd Kabelschuh zum Anschluss eines elektrischen Widerstandsleiters
DE3841351A1 (de) * 1988-12-08 1990-06-13 Philips Patentverwaltung Anschlussvorrichtung fuer plattenfoermige bauelemente
FR2646968A1 (fr) * 1989-05-12 1990-11-16 Boyeldieu Andre Dispositif de connexion pour circuit de chauffage et de desembuage d'une glace

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU717353B3 (en) * 1999-03-16 2000-03-23 Tyco Electronics Pty Limited Improved flat panel connector
GB2357638A (en) * 1999-12-24 2001-06-27 Pilkington Plc An electrical terminal for a window
GB2357638B (en) * 1999-12-24 2004-02-04 Pilkington Plc An electrical terminal for a window
WO2008134669A1 (fr) * 2007-04-26 2008-11-06 Exatec, Llc Fixation mécanique de bornes électriques à des vitrages en plastique
EP2140728B2 (fr) † 2007-04-26 2014-06-18 Exatec, LLC. Fixation mécanique de bornes électriques à des vitrages en plastique
US9018564B2 (en) 2007-04-26 2015-04-28 Exatec Llc Mechanical attachment of electrical terminals to plastic glazings
US9472875B2 (en) 2011-11-25 2016-10-18 Japan Aviation Electronics Industry, Ltd. Wire-to-board connector
US20210121968A1 (en) * 2018-03-22 2021-04-29 Central Glass Company, Limited Method of producing a vehicle glass assembly

Also Published As

Publication number Publication date
EP0634882B1 (fr) 1999-02-17
DE59407823D1 (de) 1999-03-25
EP0634882A3 (fr) 1995-07-12
DE9310699U1 (de) 1993-09-02
ES2127853T3 (es) 1999-05-01

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