EP0634882B1 - Contact element - Google Patents
Contact element Download PDFInfo
- Publication number
- EP0634882B1 EP0634882B1 EP94110937A EP94110937A EP0634882B1 EP 0634882 B1 EP0634882 B1 EP 0634882B1 EP 94110937 A EP94110937 A EP 94110937A EP 94110937 A EP94110937 A EP 94110937A EP 0634882 B1 EP0634882 B1 EP 0634882B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- element according
- holder
- contact element
- compression spring
- 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
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 239000011521 glass Substances 0.000 claims description 10
- 239000004020 conductor Substances 0.000 claims description 5
- 229910010293 ceramic material Inorganic materials 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 11
- 229910052802 copper Inorganic materials 0.000 description 11
- 239000010949 copper Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 5
- 238000005476 soldering Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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 see, for example, FR-A-1 104 595
- FR-A-1 104 595 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, especially 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 a contact element to create the kind mentioned above, the simplest 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 division of the contact element into a contact and a holding part enables largely independent versions of these two Parts and thus an optimization in terms of their function. So can e.g. the holding part can be glued to the pane without the contact to affect. The choice of materials is also without influence to 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 be arranged around a mandrel, for example.
- An embodiment of the contact element according to claim is particularly advantageous 7, in which the contact part is detachably fastened in the contact holder, so that in the event of repairs or replacement of the glass support the supply line and the contact part are not dismantled but only from the contact holder must be solved.
- the thickness of the contact element is as small as possible required.
- An embodiment according to claim 8 is special for this suitable because it allows a minimal height above the glass support.
- a releasable attachment according to claim 9 has the advantage that Establishing the attachment does not require any measures since the locking takes place automatically when joining the contact part and holder, and that only a simple handle is required to release the catch is, namely the pushing out of a locking lug from a locking projection.
- these locking elements can be placed anywhere on the contact holder and contact part or be attached to the compression spring. Particularly easy it is, however, if the one piece with the contact part or attached thereto Compression spring with the free end part a projection of the contact holder engages behind.
- An embodiment of the contact element according to claim 10 is particularly advantageous for applications in which the connecting line is already with a connector pin and then only in the simplest Way designed socket must be inserted.
- 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 representation.
- 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 in two parts: it consists of a copper plate 9 and a leaf spring 10, with an end portion 11 of the flanged plug-side end part 12 of the copper plate 9 is clamped and with the other, stop-side End section 13 with mounted contact element under pressure on the Inner surface 14 of the cover part 6 rests.
- On the connection-side end part 15 is the stripped end 16 of one provided with an insulating jacket 17 Copper braid 18 soldered.
- the contact part 8 provided with the bond tape 18 is also used the plug end part 12 ahead through the funnel-shaped end widened opening between the bottom surface 7 'and the busbar 4 in inserted the contact holder 1, the copper plate 9 through the Pressure of the leaf spring 10 supported on the cover part 6 with the total Bottom surface rests on the busbar 4 and contacts it. In this position, it also engages behind the end face of the connection side End section 13, the inner shoulder 19 of the connection-side edge part 5 ' and is therefore absolutely vibration-proof against slipping out of the contact holder 1 secured.
- this latching is simple by depressing the leaf spring 10 by means of an opening 20 the pin-shaped object (e.g. a Screwdriver blade) releasable.
- 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 which generates 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 version is characterized by the one-piece contact part 21 from an even more cost-effective production and is because the contact piece consists of spring plate, especially for applications with not suitable for high currents.
Landscapes
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Bipolar Transistors (AREA)
- Bipolar Integrated Circuits (AREA)
- Semiconductor Memories (AREA)
- Resistance Heating (AREA)
Description
Die Erfindung betrifft ein Kontaktelement gemäß dem Oberbegriff des Anspruches
1 .
Ein derartiges Kontaktelement (siehe z.B. FR-A-1 104 595) ist in Form von Lötverbindungen z.B. beim
Sammelschienenanschluß der Heizleiter von Fahrzeug-Heckscheibenheizungen
bekannt. Diese Verbindungsart hat sich jedoch in der Praxis vor allem für
die Serienherstellung als nicht geeignet herausgestellt, weil aufgrund
der für das Aufbringen auf Glas erforderlichen speziellen Materialauswahl
und Befestigung der Kontaktfläche eine maschinelle Lötung in einem Automaten
nicht ohne Beschädigungen der Kontaktfläche möglich ist.
Aus diesem Grunde werden die bekannten Lötverbindungen derartiger Kontaktstellen
auch bei hohen Stückzahlen manuell hergestellt. Dieses Verfahren
ist jedoch kompliziert und erfordert besonders erfahrene Fachkräfte.
Trotz dieses hohen Fertigungsaufwandes läßt sich aber eine immer
noch hohe Ausschußrate von bis zu 1,5 % (insbesondere durch kalte Lötstellen)
nicht vermeiden. Außerdem sind zur Feststellung der Fehler und
zur weitgehenden Vermeidung von Reklamationen umfangreiche Prüfungen nötig,
sodaß die bekannte Verbindung insgesamt mit unverhältnismäßig hohen
Herstellungskosten belastet ist.The invention relates to a contact element according to the preamble of
Such a contact element (see, for example, FR-A-1 104 595) is known in the form of soldered connections, for example in the busbar connection of the heating conductors of vehicle rear window heaters. In practice, however, this type of connection has proven to be unsuitable, especially 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.
For this reason, the known solder connections of such contact points are made manually even in large quantities. However, this procedure is complicated and requires particularly experienced professionals. Despite this high manufacturing effort, a still high reject rate of up to 1.5% (especially due to cold solder joints) cannot be avoided. In addition, 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.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Kontaktelement der eingangs genannten Art zu schaffen, das möglichst einfach, kostensparend und mit geringer Ausschußrate maschinell herstellbar ist.The invention is therefore based on the object of a contact element to create the kind mentioned above, the simplest possible, cost-saving and can be produced mechanically with a low reject rate.
Diese Aufgabe ist durch die kennzeichnenden Merkmale des Anspruches 1 gelöst.
Mit der erfindungsgemäßen Klemmkontaktierung ist eine sichere Kontaktgabe
und mechanische Stabilität der Verbindung gewährleistet, die nicht vom
Geschick einer Fachkraft (bei der Wahl der richtigen Löttemperatur und
Lötzeit) abhängt. Vielmehr eignet sich diese Ausführung zur automatisierten,
maschinellen Herstellung praktisch ohne Ausschuß und damit ganz besonders
für Verbindungen an Serienbauteilen wie z.B. heizbaren Scheiben,
Scheibenantennen, Solarzellen, Displays oder Scheiben mit leitenden Flächen
für Alarmeinrichtungen. Dies gilt sowohl für die Herstellung und Befestigung
des Kontakthalters als auch für die Fertigung und das Einbringen
des Kontaktteils sowie dessen Anschluß an die Anschlußleitung durch
Löten, Crimpen oder Schweißen.
Die Kontaktsicherheit ist dabei durch entsprechende Wahl der Größe des
Kontaktdrucks und der Kontaktfläche sowie des Materials des Kontaktteils
auf einfache Weise den Erfordernissen des Einzelfalls anpaßbar.
Beispielsweise wird für die bei Fahrzeug-Heckscheibenheizungen fließenden
hohen Ströme das Kontaktteil mit einer großen, auf der Sammelschiene
aufliegenden Platte aus gut leitendem Material (Kupfer) ausgestattet.This object is achieved by the characterizing features of
With the clamp contacting according to the invention, reliable contacting and mechanical stability of the connection is ensured, which does not depend on the skill of a specialist (when choosing the correct soldering temperature and soldering time). Rather, this version is suitable for automated, mechanical production practically without rejects and therefore very particularly for connections to series components such as heatable panes, pane antennas, solar cells, displays or panes with conductive surfaces for alarm devices. This applies both to the manufacture and attachment of the contact holder and to the manufacture and insertion of the contact part and its connection to the connecting line by soldering, crimping or welding.
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.
For example, for the high currents flowing in vehicle rear window heaters, the contact part is equipped with a large plate made of highly conductive material (copper) resting on the busbar.
Die Aufteilung des Kontaktelements in ein Kontakt- und ein Halteteil ermöglicht voneinander weitgehend unabhängige Ausführungen dieser beiden Teile und somit eine Optimierung hinsichtlich ihrer Funktion. So kann z.B. das Halteteil auf die Scheibe aufgeklebt sein ohne die Kontaktierung zu beeinträchtigen. Auch ist die Wahl der Materialien jeweils ohne Einfluß auf das andere Teil.The division of the contact element into a contact and a holding part enables largely independent versions of these two Parts and thus an optimization in terms of their function. So can e.g. the holding part can be glued to the pane without the contact to affect. The choice of materials is also without influence to the other part.
Vorteilhafte Ausführungen bzw. Ausgestaltungen des Gegenstandes nach dem
Hauptanspruch sind den Unteransprüchen zu entnehmen.
Bei einer Ausführung nach Anspruch 2 ist die Klemmkontaktierung durch wenigstens
eine Klemmschraube realisiert, die zwar betätigt werden muß, andererseits
aber einen beliebig hohen Kontaktdruck ermöglicht und damit
insoweit eine Anpassung an die unterschiedlichsten Anforderungen ermöglicht.Advantageous embodiments of the object according to the main claim can be found in the subclaims.
In an embodiment according to
Als vorteilhafte Alternative ist in Anspruch 3 eine Kontaktierung mittels
Federdruck vorgesehen. Dabei kann die Druckfeder ein gesondertes Teil
sein, das beispielsweise um einen Dorn herum angeordnet ist. Ein wesentlich
geringerer Aufwand ist demgegenüber erreicht, wenn gemäß den Ansprüchen
4 bis 6 die Druckfeder nicht lose, sondern entweder am Kontaktteil
oder am Kontakthalter befestigt oder - sofern nicht unterschiedliche
Materialien des eigentlichen Kontaktteils und der Feder erforderlich sind
- mit dem Kontaktteil einstückig ist. As an advantageous alternative in
Besonders vorteilhaft ist eine Ausbildung des Kontaktelements nach Anspruch 7, bei der das Kontaktteil im Kontakthalter lösbar befestigt ist, sodaß im Falle von Reparaturen bzw. eines Auswechselns des Glasträgers die Zuleitung samt Kontaktteil nicht demontiert sondern nur vom Kontakthalter gelöst werden muß.An embodiment of the contact element according to claim is particularly advantageous 7, in which the contact part is detachably fastened in the contact holder, so that in the event of repairs or replacement of the glass support the supply line and the contact part are not dismantled but only from the contact holder must be solved.
Für viele Anwendungsfälle ist eine möglichst geringe Dicke des Kontaktelements
gefordert. Dafür ist eine Ausführung nach Anspruch 8 besonders
geeignet, weil sie eine minimale Höhe über dem Glasträger ermöglicht.For many applications, the thickness of the contact element is as small as possible
required. An embodiment according to
Eine lösbare Befestigung gemäß Anspruch 9 weist den Vorteil auf, daß zum
Herstellen der Befestigung keinerlei Maßnahmen nötig sind, da die Verrastung
beim Zusammenfügen von Kontaktteil und -halter automatisch erfolgt,
und daß zum Lösen der Verrastung lediglich ein einfacher Handgriff erforderlich
ist, nämlich das Herausdrücken einer Rastnase aus einem Rastvorsprung.
Diese Rastelemente können im Prinzip beliebig am Kontakthalter
und Kontaktteil bzw. an der Druckfeder angebracht sein. Besonders einfach
ist es jedoch, wenn die mit dem Kontaktteil einstückige oder daran befestigte
Druckfeder mit dem freien Endteil einen Vorsprung des Kontakthalters
hintergreift.A releasable attachment according to
Eine Ausbildung des Kontaktelements nach Anspruch 10 ist besonders vorteilhaft
für Anwendungsfälle, in denen die Anschlußleitung bereits mit
einem Steckerstift konfektioniert ist und dann nur noch in die auf einfachste
Weise gestaltete Buchse eingesteckt werden muß.An embodiment of the contact element according to
Grundsätzlich kann der Kontakthalter, da er wie beschrieben unabhängig
von den Eigenschaften des Kontaktteils ist, auf beliebige Weise am Glasträger
befestigt sein. Eine besonders einfache und kostengünstige Art,
die auch die üblicherweise in Fahrzeugen durch Rüttelbewegung auftretenden
Belastungen aushält, ist in Anspruch 11 angegeben.
Diese mechanische Stabilität der Befestigung wird noch erhöht durch eine
Ausführung des Kontakthalters aus Keramik (Anspruch 12), weil die temperaturabhängigen
Ausdehnungskoeffizienten von Glas und Keramik ähnlich
sind, sodaß die mechanischen Spannungen zwischen Kabelhalter und Glasträger
auch bei starken Temperaturschwankungen so gering sind, daß sie die
Festigkeit der Halterung nicht nennenswert beeinträchtigen. In principle, since it is independent of the properties of the contact part as described, the contact holder can be attached to the glass carrier in any manner. A particularly simple and inexpensive type, which also withstands the loads that usually occur in vehicles due to vibrating motion, is specified in
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.
Die Erfindung ist nachstehend noch anhand zweier Ausführungsbeispiele eines Kontaktelements für einen Heckscheiben-Heizleiteranschluß in den Figuren erläutert, wobei gleich Teile mit gleichen Ziffern bezeichnet sind. Die Figuren 1 und 2 zeigen jeweils eine teilweise geschnittene perspektivische Ansicht eines ersten und eines zweiten Ausführungsbeispieles in Prinzipdarstellung.The invention is below based on two exemplary embodiments Contact element for a rear window heating conductor connection in the figures explained, parts being identified by the same numbers. Figures 1 and 2 each show a partially sectioned perspective View of a first and a second embodiment in Principle representation.
Bei beiden Ausführungsbeispielen ist ein Kontakthalter 1 aus Isolierstoff
vorgesehen, der auf einer als Sammelschiene für Heizdrähte 2 ausgebildeten,
auf einer Fahrzeug-Heckscheibe 3 aufgebrachten Metallfolie 4 aufgeklebt
ist.
Der Kontakthalter 1 ist deckelartig geformt mit drei gleichen Randteilen
5, einem kürzeren anschlußseitigen Randteil 5' und einem Deckelteil 6.
Die Randteile 5 sind mit ihren freien Bodenflächen 7 auf der Sammelschiene
4 aufgeklebt, wobei zwischen der Bodenfläche 7' des Randteils 5'
und der Sammelschiene 4 eine Öffnung zur Einführung eines Kontaktteils
verbleibt.In both exemplary embodiments, a
The
Bei der Ausführung des Kontaktelements gemäß Figur 1 ist das Kontaktteil
8 zweiteilig: es besteht aus einer Kupferplatte 9 und einer Blattfeder
10, die mit einem Endabschnitt 11 vom umgebördelten steckseitigen Endteil
12 der Kupferplatte 9 festgeklemmt ist und mit dem anderen, anschlagseitigen
Endabschnitt 13 bei montiertem Kontaktelement unter Druck an der
Innenfläche 14 des Deckelteils 6 anliegt. Auf dem anschlußseitigen Endteil
15 ist das abisolierte Ende 16 eines mit einem Isoliermantel 17 versehenen
Kupfergeflechtbandes 18 angelötet.In the design of the contact element according to Figure 1 is the
Zum Anschluß wird das mit dem Kuferband 18 versehene Kontaktteil 8 mit
dem steckseitigen Endteil 12 voraus durch die stirnseitig trichterförmig
erweiterte Öffnung zwischen der Bodenfläche 7' und der Sammelschiene 4 in
den Kontakthalter 1 eingeschoben, wobei die Kupferplatte 9 durch den
Druck der sich am Deckelteil 6 abstützenden Blattfeder 10 mit der gesamten
Unterfläche an der Sammelschiene 4 anliegt und diese kontaktiert.
In dieser Lage hintergreift zugleich die Stirnfläche des anschlußseitigen
Endabschnitts 13 die Innenschulter 19 des anschlußseitigen Randteils 5'
und ist dadurch absolut rüttelfest gegen ein Herausrutschen aus dem Kontakthalter
1 gesichert. Diese Verrastung ist jedoch auf einfache Weise
durch Niederdrücken der Blattfeder 10 mittels eines durch eine Öffnung 20
des Deckelteils 6 hindurchgeführten stiftförmigen Gegenstandes (z.B. einer
Schraubendreherklinge) wieder lösbar.For connection, the
Der Kontakthalter 1 ist im Druckgußverfahren sehr einfach und kostengünstig
als Serienteil herstellbar. Darüberhinaus eignet sich auch das Kontaktteil
8 zur maschinellen Fertigung mit minimaler Ausschußquote, und
zwar sowohl hinsichtlich der Herstellung der Kupferplatte 9 und der
Blattfeder 10 sowie deren Klemmverbindung (Stanz-Biegeverfahren) als auch
der Lötverbindung von Kupferplatte 9 und Kupferband 18.
Die Trennung in ein eigentliches Kontaktstück (Kupferplatte 9) und eine
den Kontaktdruck erzeugende Blattfeder 10 ergibt darüberhinaus den Vorteil,
daß das Material für diese Teile optimal den jeweiligen Erfordernissen
angepaßt werden kann. So ist es im vorliegenden Ausführungsbeispiel
möglich, das Kontaktelement dadurch für hohe Ströme auszulegen, daß
das eigentliche Kontaktstück als Platte 9 aus gut leitendem Material
(Kupfer) ausgebildet ist, die mittels einer starken, auf der gesamten
Breite der Kupferplatte 8 wirkenden Blattfeder 10 aus Federblech großflächig
an der zu kontaktierenden Sammelschiene 4 anliegt.The
The separation into an actual contact piece (copper plate 9) and a
Bei der in Figur 2 dargestellten Ausführung eines erfindungsgemäßen Kontaktelements
ist das Kontaktteil 21 ein ebenfalls praktisch ausschußfrei
maschinell herstellbares einstückiges Stanz-Biegeteil aus Federblech,
dessen im Kontakthalter 1 angeordneter Abschnitt aus einem Oberteil 22
und einem um 180 ° abgewinkelten, an der Sammelschiene 4 anliegenden Unterteil
23 besteht.
Aus dem Oberteil 22 ist eine als Druckfeder 24 wirkende Zunge ausgestanzt
und derart herausgebogen, daß sie unter Druck an der Innenfläche 14 des
Deckelteils 6 und zugleich mit ihrer freien Stirnkante an der Schulter 19
anliegt. Diese Rasthalterung ist auch hier sehr einfach mittels eines
durch die Öffnung 20 auf die Druckfeder 24 zu drückenden stiftförmigen
Gegenstandes lösbar.
Am anschlußseitigen Endteil 25 des Kontaktteils 21 ist die abisolierte
Ader 26 eines mit einem Isoliermantel 27 versehenen Kabels 28 maschinell
angelötet. Der Anschluß erfolgt in der bereits beim Ausführungsbeispiel
gemäß Figur 1 beschriebenen Weise. In the embodiment of a contact element according to the invention shown in FIG. 2, the
A tongue acting as a
The stripped
Diese Ausführung zeichnet sich aufgrund des einteiligen Kontaktteils 21
durch eine noch kostengünstigere Herstellung aus und ist, da das Kontaktstück
aus Federblech besteht, insbesondere für Anwendungsfälle mit nicht
allzu hohen Strömen geeignet.This version is characterized by the one-
Claims (12)
- Contact element for the purpose of connecting in an electrical and mechanical manner a contact surface, in particular a busbar for heat conductors in motor vehicle windows, which contact surface is attached to a glass carrier, having a connecting cable, at least consisting of a contact part (8,21) connected to the connecting cable (18, 28), a contact surface (4) attached to a glass carrier (3) and a contact holder (1) attached to the glass carrier,
characterized in that the contact part (8,21) is disposed in the contact holder (1) and under pressure abuts against the contact surface (4). - Contact element according to claim 1, characterized in that the contact holder comprises at least one clamping screw which urges the contact part against the contact surface.
- Contact element according to claim 1, characterized in that at least one compression spring (10, 24) is provided between the contact holder (1) and the contact part (8,21).
- Contact element according to claim 3, characterized in that the at least one compression spring (10) is attached to the contact part (8).
- Contact element according to claim 3, characterized in that the at least one compression spring is attached to the contact holder.
- Contact element according to claim 4, characterized in that the at least one compression spring (24) is formed as one piece with the contact part (21).
- Contact element according to any one of claims 1 to 6, characterized in that the contact part (8,21) can be releaseably attached in the contact holder (1).
- Contact element according to claim 7, characterized in that the contact part (8,21) can be inserted into the contact holder (1) in a manner parallel with the contact surface (4).
- Contact element according to claim 7, characterized in that the contact part (8,21) is releaseably attached in a latching manner in the contact holder (1).
- Contact element according to claim 3, characterized in that the compression spring forms the contact part and a tip jack is formed between the compression spring and the contact holder for the purpose of receiving a guide pin connected to the connecting cable.
- Contact element according to any one of claims 1 to 10, characterized in that the contact holder (1) is adhered to the glass carrier (3) and/or the contact surface (4).
- Contact element according to any one of claims 1 to 11, characterized that the contact holder (1) consists of ceramic material.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9310699U DE9310699U1 (en) | 1993-07-17 | 1993-07-17 | Contact element |
DE9310699U | 1993-07-17 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0634882A2 EP0634882A2 (en) | 1995-01-18 |
EP0634882A3 EP0634882A3 (en) | 1995-07-12 |
EP0634882B1 true EP0634882B1 (en) | 1999-02-17 |
Family
ID=6895712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94110937A Expired - Lifetime EP0634882B1 (en) | 1993-07-17 | 1994-07-14 | Contact element |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0634882B1 (en) |
DE (2) | DE9310699U1 (en) |
ES (1) | ES2127853T3 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU717353B3 (en) * | 1999-03-16 | 2000-03-23 | Tyco Electronics Pty Limited | Improved flat panel connector |
GB2357638B (en) * | 1999-12-24 | 2004-02-04 | Pilkington Plc | An electrical terminal for a window |
CN100495821C (en) * | 2002-11-28 | 2009-06-03 | 旭硝子株式会社 | Electrical connection structure for conductor formed on glass surface |
JP5039941B2 (en) * | 2007-04-26 | 2012-10-03 | エグザテック・リミテッド・ライアビリティー・カンパニー | Mechanical electrical terminal attachment to plastic panel |
JP5890157B2 (en) | 2011-11-25 | 2016-03-22 | 日本航空電子工業株式会社 | Wire-to-board connector |
GB201804622D0 (en) * | 2018-03-22 | 2018-05-09 | Central Glass Co Ltd | Method of producing a vehicle glass assembly |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1104595A (en) * | 1953-05-27 | 1955-11-22 | Saint Gobain | Electrical connections for resistance elements on glass plates |
US3117829A (en) * | 1960-06-23 | 1964-01-14 | Minnesota Mining & Mfg | Terminal plug and block |
DE1190074B (en) * | 1961-06-06 | 1965-04-01 | Lucas Industries Ltd | Cable lug for connecting an electrical resistance conductor |
DE3841351A1 (en) * | 1988-12-08 | 1990-06-13 | Philips Patentverwaltung | Connecting device for flat components |
FR2646968B1 (en) * | 1989-05-12 | 1991-08-30 | Boyeldieu Andre | CONNECTION DEVICE FOR A CIRCUIT FOR HEATING AND DEMOGGING ICE |
-
1993
- 1993-07-17 DE DE9310699U patent/DE9310699U1/en not_active Expired - Lifetime
-
1994
- 1994-07-14 EP EP94110937A patent/EP0634882B1/en not_active Expired - Lifetime
- 1994-07-14 DE DE59407823T patent/DE59407823D1/en not_active Expired - Fee Related
- 1994-07-14 ES ES94110937T patent/ES2127853T3/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES2127853T3 (en) | 1999-05-01 |
DE59407823D1 (en) | 1999-03-25 |
DE9310699U1 (en) | 1993-09-02 |
EP0634882A2 (en) | 1995-01-18 |
EP0634882A3 (en) | 1995-07-12 |
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