EP1837888A2 - Switching module - Google Patents

Switching module Download PDF

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Publication number
EP1837888A2
EP1837888A2 EP07005363A EP07005363A EP1837888A2 EP 1837888 A2 EP1837888 A2 EP 1837888A2 EP 07005363 A EP07005363 A EP 07005363A EP 07005363 A EP07005363 A EP 07005363A EP 1837888 A2 EP1837888 A2 EP 1837888A2
Authority
EP
European Patent Office
Prior art keywords
switch
circuit board
holding frame
switch housing
module 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.)
Withdrawn
Application number
EP07005363A
Other languages
German (de)
French (fr)
Other versions
EP1837888A3 (en
Inventor
Markus Altmann
Jürgen Schmider
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.)
BCS Automotive Interface Solutions GmbH
Original Assignee
BCS Automotive Interface Solutions GmbH
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 BCS Automotive Interface Solutions GmbH filed Critical BCS Automotive Interface Solutions GmbH
Publication of EP1837888A2 publication Critical patent/EP1837888A2/en
Publication of EP1837888A3 publication Critical patent/EP1837888A3/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/04—Cases; Covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02—Details
    • H01H23/04—Cases; Covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02—Details
    • H01H23/12—Movable parts; Contacts mounted thereon
    • H01H23/16—Driving mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/01—Mounting on appliance
    • H01H2223/012—Snap mounting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/064—Eliminating tolerances

Definitions

  • the invention relates to a switch module with a switch housing on which at least one actuating button or rocker is movably guided, further comprising a circuit board arranged in the circuit board, are formed on the tracks with switching contacts, a switching mat, which rests on the tracks, and an actuating element, the transfers the stroke of the button or rocker to the switch mat.
  • Printed circuit boards can be produced with high precision in length and width. Their thickness, however, is subject to considerable tolerances of more than +/- 0.1 mm.
  • the printed circuit board requires on its side facing the switching mat a defined support on the switch housing to ensure a constant operating stroke.
  • the printed circuit board On its surface opposite the switching mat, the printed circuit board is supported by a holding frame or the like. So that the printed circuit board is kept free of play, despite its toleranced thickness, the holding frame is connected by a screw with the switch housing. It is not possible in this conventional embodiment of the switch module to use a simple latching connection.
  • the switching mat surrounds the outer edge of the printed circuit board in a form-fitting manner.
  • the switching mat thus has two auxiliary functions. On the one hand, it allows a tolerance compensation by its elastic nature. On the other hand, the outer circumference of the switching mat acts as a seal.
  • the circuit board can now between a support on the switch housing and the holding frame are clamped, and the holding frame can be connected by a simple snap connection with the switch housing.
  • the switching mat has in its areas between the support on the switch housing and the printed circuit board a greatly reduced thickness of only a few tenths of a millimeter, so that the circuit board sits in a defined position relative to the switch housing.
  • the switch module shown in the drawings is a multiple switch for installation in a panel of a vehicle.
  • the switch module has a generally cuboid switch housing 10 made of plastic.
  • On the switch housing 10 guides for (not shown) keys are formed.
  • a circuit board 12 is used, which is provided on its surface facing the buttons with traces and switch contacts.
  • On the conductor tracks and switch contacts is a switching mat 14.
  • the switching mat 14 is made of an elastomeric material. It is provided with integrally formed switching domes 16, which have a contact pill on their surface lying over an associated contact pair.
  • the switching domes 16 are connected via actuators (not shown) such as plungers or the like to associated keys or rockers.
  • the circuit board 12 is clamped with the switching mat 14 between a support on the switch housing 10 and a holding frame 18 which is connected by a latching connection with the switch housing 10.
  • the switching mat 14 engages around the outer edge of the printed circuit board 12 in a form-fitting manner on its outer circumference.
  • the outer circumference of the switching mat 14 is flush with the inner surface of the switch housing 10.
  • the holding frame 18 has a latching nose 18a, which engages in a latching window 10a in the wall of the switch housing 10.
  • At the detent 18a further comprises a support rib 18b is formed, on which the Circuit board 12 encompassing edge 14a of the keypad 14 rests. From Figure 2a it can be seen that the support for switching mat and circuit board is formed on the switch housing 10 by a molded on the switch housing bearing rib 10b.
  • the thickness of the switching mat 14 is greatly reduced. It is there only a few tenths of a millimeter. As a result, a well-defined support position of the circuit board 12 is ensured relative to the switch housing 10.
  • the holding frame 18 encloses a bottom part 20 with integrated plug-in chamber, which is connected by a latching connection with the holding frame 18. Between the holding frame 18 and the bottom part 20, a circuit board 22 is clamped.
  • the printed circuit board 22 is provided with contact elements for a connector (not shown).
  • the printed circuit board 12 has a well-defined support position with respect to the switch housing 10, its thickness can be toleranced because it is elastically clamped between the switch mat 14 and the support ribs 18b of the support frame 18, wherein the edge region 14a between the circuit board 12 and support ribs 18b the switching mat 14 is elastically compressed. In this way, not only a tolerance compensation with respect to the thickness of the circuit board 12, but also a seal of the circuit board on the switch housing. Because of the tolerance compensation, a latching connection of the holding frame 18 with the switch housing 10 is easily possible.
  • the switch module eliminates the second circuit board 22, and instead of the support frame 18, the bottom part 20 is connected directly to the switch housing 10.
  • the latching lugs on the bottom part 20 are designed to match the latching windows on the switch housing 10 as well as to the latching windows on the support frame 18.

Abstract

The switch mat (14) surrounds and interlocks with the outer edge of the circuit board (12). The mat and circuit board are clamped-in between a layer on the plastic switch casing (10) and a holding frame (18) connected to the casing or base section. The layer on the switch casing is formed by molded contact ridges; thickness of the mat between these and the circuit board is reduced. The holding frame or base section is fastened by a clip connection to the switch casing.

Description

Die Erfindung betrifft ein Schaltermodul mit einem Schaltergehäuse, an dem wenigstens eine Betätigungstaste oder Betätigungswippe beweglich geführt ist, ferner mit einer im Schaltergehäuse angeordneten Leiterplatte, auf der Leiterbahnen mit Schaltkontakten ausgebildet sind, einer Schaltmatte, die auf den Leiterbahnen aufliegt, und einem Betätigungselement, das den Hub der Taste oder Wippe auf die Schaltmatte überträgt.The invention relates to a switch module with a switch housing on which at least one actuating button or rocker is movably guided, further comprising a circuit board arranged in the circuit board, are formed on the tracks with switching contacts, a switching mat, which rests on the tracks, and an actuating element, the transfers the stroke of the button or rocker to the switch mat.

Leiterplatten können in Länge und Breite hochgenau produziert werden. Ihre Dicke ist jedoch mit erheblichen Toleranzen von mehr als +/- 0,1 mm behaftet. Andererseits benötigt die Leiterplatte auf ihrer der Schaltmatte zugewandten Seite eine definierte Auflage am Schaltergehäuse, um einen konstanten Betätigungshub zu gewährleisten. Auf ihrer der Schaltmatte gegenüberliegenden Fläche wird die Leiterplatte durch einen Halterahmen oder dergleichen abgestützt. Damit die Leiterplatte trotz ihrer toleranzbehafteten Dicke spielfrei gehalten wird, ist der Halterahmen durch eine Schraubbefestigung mit dem Schaltergehäuse verbunden. Es ist bei dieser herkömmlichen Ausbildung des Schaltermoduls nicht möglich, eine einfache Rastverbindung zu verwenden.Printed circuit boards can be produced with high precision in length and width. Their thickness, however, is subject to considerable tolerances of more than +/- 0.1 mm. On the other hand, the printed circuit board requires on its side facing the switching mat a defined support on the switch housing to ensure a constant operating stroke. On its surface opposite the switching mat, the printed circuit board is supported by a holding frame or the like. So that the printed circuit board is kept free of play, despite its toleranced thickness, the holding frame is connected by a screw with the switch housing. It is not possible in this conventional embodiment of the switch module to use a simple latching connection.

Bei dem erfindungsgemäßen Schaltermodul umgreift die Schaltmatte den Außenrand der Leiterplatte formschlüssig. Die Schaltmatte hat somit zwei Hilfsfunktionen. Zum einen ermöglicht sie durch ihre elastische Beschaffenheit einen Toleranzausgleich. Zum anderen wirkt der Außenumfang der Schaltmatte als Dichtung. Die Leiterplatte kann nun zwischen einer Auflage am Schaltergehäuse und dem Halterahmen eingespannt werden, und der Halterahmen kann durch eine einfache Rastverbindung mit dem Schaltergehäuse verbunden werden. Die Schaltmatte hat in ihren Bereichen zwischen der Auflage am Schaltergehäuse und der Leiterplatte eine stark reduzierte Dicke von nur wenigen Zehntel mm, damit die Leiterplatte in einer definierten Position relativ zum Schaltergehäuse sitzt.In the switch module according to the invention, the switching mat surrounds the outer edge of the printed circuit board in a form-fitting manner. The switching mat thus has two auxiliary functions. On the one hand, it allows a tolerance compensation by its elastic nature. On the other hand, the outer circumference of the switching mat acts as a seal. The circuit board can now between a support on the switch housing and the holding frame are clamped, and the holding frame can be connected by a simple snap connection with the switch housing. The switching mat has in its areas between the support on the switch housing and the printed circuit board a greatly reduced thickness of only a few tenths of a millimeter, so that the circuit board sits in a defined position relative to the switch housing.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der folgenden Beschreibung eines bevorzugten Ausführungsbeispiels unter Bezugnahme auf die beigefügten Zeichnungen. In den Zeichnungen zeigen:

  • Figur 1 einen Axialschnitt eines Schaltermoduls;
  • Figur 1a einen vergrößerten Ausschnitt "A" in Figur 1;
  • Figur 2 einen Axialschnitt des Schaltermoduls in einer gegenüber Figur 1 um 90° verdrehten Ebene; und
  • Figur 2a vergrößert einen Ausschnitt "A" in Figur 2.
Further features and advantages of the invention will become apparent from the following description of a preferred embodiment with reference to the accompanying drawings. In the drawings show:
  • Figure 1 shows an axial section of a switch module;
  • FIG. 1a shows an enlarged section "A" in FIG. 1;
  • FIG. 2 shows an axial section of the switch module in a plane rotated by 90 ° with respect to FIG. 1; and
  • FIG. 2 a enlarges a section "A" in FIG. 2.

Bei dem in den Zeichnungen dargestellten Schaltermodul handelt es sich um einen Mehrfach-Schalter zum Einbau in einer Blende eines Fahrzeugs. Das Schaltermodul hat ein allgemein quaderförmiges Schaltergehäuse 10 aus Kunststoff. An dem Schaltergehäuse 10 sind Führungen für (nicht dargestellte) Tasten angeformt. In dem Schaltergehäuse 10 ist eine Leiterplatte 12 eingesetzt, die auf ihrer den Tasten zugewandten Fläche mit Leiterbahnen und Schaltkontakten versehen ist. Auf den Leiterbahnen und Schaltkontakten liegt eine Schaltmatte 14 auf. Die Schaltmatte 14 besteht aus einem Elastomermaterial. Sie ist mit angeformten Schaltdomen 16 versehen, die auf ihrer über einem zugeordneten Kontaktpaar liegenden Fläche eine Kontaktpille aufweisen. Die Schaltdome 16 sind über (nicht dargestellte) Betätigungselemente wie Stößel oder dergl. an zugeordnete Tasten oder Betätigungswippen angeschlossen. Die Leiterplatte 12 ist mit der Schaltmatte 14 zwischen einer Auflage am Schaltergehäuse 10 und einem Halterahmen 18 eingespannt, der durch eine Rastverbindung mit dem Schaltergehäuse 10 verbunden ist.The switch module shown in the drawings is a multiple switch for installation in a panel of a vehicle. The switch module has a generally cuboid switch housing 10 made of plastic. On the switch housing 10 guides for (not shown) keys are formed. In the switch housing 10, a circuit board 12 is used, which is provided on its surface facing the buttons with traces and switch contacts. On the conductor tracks and switch contacts is a switching mat 14. The switching mat 14 is made of an elastomeric material. It is provided with integrally formed switching domes 16, which have a contact pill on their surface lying over an associated contact pair. The switching domes 16 are connected via actuators (not shown) such as plungers or the like to associated keys or rockers. The circuit board 12 is clamped with the switching mat 14 between a support on the switch housing 10 and a holding frame 18 which is connected by a latching connection with the switch housing 10.

Wie aus Figur 1a besser ersichtlich ist, umgreift die Schaltmatte 14 an ihrem Außenumfang den Außenrand der Leiterplatte 12 formschlüssig. Der Außenumfang der Schaltmatte 14 liegt bündig an der Innenfläche des Schaltergehäuse 10 an. Der Halterahmen 18 weist eine Rastnase 18a auf, die in ein Rastfenster 10a in der Wandung des Schaltergehäuses 10 eingreift. An der Rastnase 18a ist ferner eine Auflagerippe 18b angeformt, auf welcher der die Leiterplatte 12 umgreifende Rand 14a der Schaltmatte 14 aufliegt. Aus Figur 2a ist ersichtlich, daß die Auflage für Schaltmatte und Leiterplatte am Schaltergehäuse 10 durch eine am Schaltergehäuse angeformte Auflagerippe 10b gebildet ist. In ihrem Bereich zwischen der Leiterplatte 12 und der Auflagerippe 10b ist die Dicke der Schaltmatte 14 stark reduziert. Sie beträgt dort nur wenige Zehntel mm. Dadurch ist eine gut definierte Auflageposition der Leiterplatte 12 relativ zum Schaltergehäuse 10 gewährleistet.As can be seen more clearly from FIG. 1a, the switching mat 14 engages around the outer edge of the printed circuit board 12 in a form-fitting manner on its outer circumference. The outer circumference of the switching mat 14 is flush with the inner surface of the switch housing 10. The holding frame 18 has a latching nose 18a, which engages in a latching window 10a in the wall of the switch housing 10. At the detent 18a further comprises a support rib 18b is formed, on which the Circuit board 12 encompassing edge 14a of the keypad 14 rests. From Figure 2a it can be seen that the support for switching mat and circuit board is formed on the switch housing 10 by a molded on the switch housing bearing rib 10b. In their area between the circuit board 12 and the support rib 10b, the thickness of the switching mat 14 is greatly reduced. It is there only a few tenths of a millimeter. As a result, a well-defined support position of the circuit board 12 is ensured relative to the switch housing 10.

Der Halterahmen 18 umschließt ein Bodenteil 20 mit integrierter Steckerkammer, das durch eine Rastverbindung mit dem Halterahmen 18 verbunden ist. Zwischen dem Halterahmen 18 und dem Bodenteil 20 ist eine Leiterplatte 22 eingespannt. Die Leiterplatte 22 ist mit Kontaktelementen für einen Anschlußstecker (nicht dargestellt) versehen.The holding frame 18 encloses a bottom part 20 with integrated plug-in chamber, which is connected by a latching connection with the holding frame 18. Between the holding frame 18 and the bottom part 20, a circuit board 22 is clamped. The printed circuit board 22 is provided with contact elements for a connector (not shown).

Obwohl die Leiterplatte 12 eine gut definierte Auflageposition in Bezug zu dem Schaltergehäuse 10 aufweist, kann ihre Dicke toleranzbehaftet sein, denn sie ist zwischen der Schaltmatte 14 und den Auflagerippen 18b des Halterahmens 18 elastisch eingespannt, wobei der zwischen Leiterplatte 12 und Auflagerippen 18b liegende Randbereich 14a der Schaltmatte 14 elastisch komprimiert wird. Auf diese Weise erfolgt nicht nur ein Toleranzausgleich bezüglich der Dicke der Leiterplatte 12, sondern auch eine Abdichtung der Leiterplatte am Schaltergehäuse. Wegen des Toleranzausgleichs ist eine Rastverbindung des Halterahmens 18 mit dem Schaltergehäuse 10 leicht möglich.Although the printed circuit board 12 has a well-defined support position with respect to the switch housing 10, its thickness can be toleranced because it is elastically clamped between the switch mat 14 and the support ribs 18b of the support frame 18, wherein the edge region 14a between the circuit board 12 and support ribs 18b the switching mat 14 is elastically compressed. In this way, not only a tolerance compensation with respect to the thickness of the circuit board 12, but also a seal of the circuit board on the switch housing. Because of the tolerance compensation, a latching connection of the holding frame 18 with the switch housing 10 is easily possible.

Bei einer vereinfachten Ausführungsform des Schaltermoduls entfällt die zweite Leiterplatte 22, und an Stelle des Halterahmens 18 ist das Bodenteil 20 direkt mit dem Schaltergehäuse 10 verbunden. Die Rastnasen am Bodenteil 20 sind passend zu den Rastfenstern am Schaltergehäuse 10 ebenso wie zu den Rastfenstern am Halterahmen 18 ausgebildet.In a simplified embodiment of the switch module eliminates the second circuit board 22, and instead of the support frame 18, the bottom part 20 is connected directly to the switch housing 10. The latching lugs on the bottom part 20 are designed to match the latching windows on the switch housing 10 as well as to the latching windows on the support frame 18.

Claims (8)

Schaltermodul mit einem Schaltergehäuse (10), an dem wenigstens eine Betätigungstaste oder Betätigungswippe beweglich geführt ist, ferner mit einer im Schaltergehäuse (10) angeordneten Leiterplatte (12), auf der Leiterbahnen mit Schaltkontakten ausgebildet sind, einer Schaltmatte (14), die auf den Leiterbahnen aufliegt, und einem Betätigungselement, das den Hub der Betätigungstaste oder Betätigungswippe auf die Schaltmatte (14) überträgt, dadurch gekennzeichnet, daß die Schaltmatte (14) den Außenrand der Leiterplatte (12) formschlüssig umgreift.Switch module with a switch housing (10) on which at least one actuating button or rocker is movably guided, further comprising a in the switch housing (10) arranged printed circuit board (12) are formed on the tracks with switch contacts, a switching mat (14) on the Tracks rests, and an actuating element which transmits the stroke of the actuating button or rocker switch on the switching mat (14), characterized in that the switching mat (14) engages around the outer edge of the printed circuit board (12) in a form-fitting manner. Schaltermodul nach Anspruch 1, dadurch gekennzeichnet, daß die Schaltmatte (14) mit der Leiterplatte (12) zwischen einer Auflage am Schaltergehäuse (10) und einem mit dem Schaltergehäuse (10) verbundenen Halterahmen (18) oder Bodenteil (20) eingespannt ist.Switch module according to Claim 1, characterized in that the switching mat (14) is clamped to the printed circuit board (12) between a support on the switch housing (10) and a holding frame (18) or bottom part (20) connected to the switch housing (10). Schaltermodul nach Anspruch 2, dadurch gekennzeichnet, daß die Auflage am Schaltergehäuse (10) durch angeformte Auflagerippen (10b) gebildet ist und die Schaltmatte (14) zwischen den Auflagerippen (10b) und der Leiterplatte (12) eine reduzierte Dicke aufweist.Switch module according to Claim 2, characterized in that the support on the switch housing (10) is formed by integrally formed support ribs (10b) and the switch mat (14) has a reduced thickness between the support ribs (10b) and the printed circuit board (12). Schaltermodul nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß der Halterahmen (18) oder das Bodenteil (20) durch eine Rastverbindung am Schaltergehäuse (10) befestigt ist.Switch module according to claim 2 or 3, characterized in that the holding frame (18) or the bottom part (20) by a latching connection on the switch housing (10) is attached. Schaltermodul nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Außenumfang der Schaltmatte (14) bündig an der Innenfläche des Schaltergehäuses (10) anliegt.Switch module according to one of claims 1 to 4, characterized in that the outer circumference of the switching mat (14) rests flush against the inner surface of the switch housing (10). Schaltermodul nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Halterahmen (18) oder das Bodenteil (20) Auflagerippen (18b) in Gegenüberlage zum Außenrand der Schaltmatte (14) aufweist.Switch module according to one of claims 1 to 5, characterized in that the holding frame (18) or the bottom part (20) bearing ribs (18b) in opposite to the outer edge of the switching mat (14). Schaltermodul nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, daß der Halterahmen (18) ein Bodenteil (20) mit integrierter Steckerkammer umschließt, das durch eine Rastverbindung mit dem Halterahmen (18) verbunden ist, und daß zwischen Halterahmen (18) und Bodenteil (20) eine Leiterplatte (22) mit Kontaktelementen eingespannt ist.Switch module according to one of claims 2 to 6, characterized in that the holding frame (18) encloses a bottom part (20) with integrated plug chamber, which is connected by a latching connection with the holding frame (18), and that between the holding frame (18) and bottom part (20) a printed circuit board (22) is clamped with contact elements. Schaltermodul nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, daß das Bodenteil (20) Rastelemente aufweist, die passend sowohl zu entsprechenden Rastelementen (10a) des Schaltergehäuses (10) als auch zu entsprechenden Rastelementen (18a) des Halterahmens (18) ausgebildet sind.Switch module according to one of claims 2 to 6, characterized in that the bottom part (20) has latching elements, which are formed both to corresponding latching elements (10a) of the switch housing (10) and to corresponding latching elements (18a) of the holding frame (18) ,
EP07005363A 2006-03-22 2007-03-15 Switching module Withdrawn EP1837888A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202006004575U DE202006004575U1 (en) 2006-03-22 2006-03-22 switch module

Publications (2)

Publication Number Publication Date
EP1837888A2 true EP1837888A2 (en) 2007-09-26
EP1837888A3 EP1837888A3 (en) 2009-03-25

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EP07005363A Withdrawn EP1837888A3 (en) 2006-03-22 2007-03-15 Switching module

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US (1) US7638724B2 (en)
EP (1) EP1837888A3 (en)
JP (1) JP2007258173A (en)
KR (1) KR20070095809A (en)
CN (1) CN101071694A (en)
DE (1) DE202006004575U1 (en)

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US7638724B2 (en) 2009-12-29
KR20070095809A (en) 2007-10-01
EP1837888A3 (en) 2009-03-25
DE202006004575U1 (en) 2006-05-18
US20070221487A1 (en) 2007-09-27
CN101071694A (en) 2007-11-14
JP2007258173A (en) 2007-10-04

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