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EP1304714A1 - Electric switch - Google Patents

Electric switch Download PDF

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Publication number
EP1304714A1
EP1304714A1 EP02009267A EP02009267A EP1304714A1 EP 1304714 A1 EP1304714 A1 EP 1304714A1 EP 02009267 A EP02009267 A EP 02009267A EP 02009267 A EP02009267 A EP 02009267A EP 1304714 A1 EP1304714 A1 EP 1304714A1
Authority
EP
European Patent Office
Prior art keywords
switch
guide link
guide
switch housing
elastic material
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
EP02009267A
Other languages
German (de)
French (fr)
Other versions
EP1304714B1 (en
Inventor
Hans-Joachim Frohne
Klaus Müller
Jürgen Girke
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 EP1304714A1 publication Critical patent/EP1304714A1/en
Application granted granted Critical
Publication of EP1304714B1 publication Critical patent/EP1304714B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/10—Movable parts; Contacts mounted thereon
    • H01H19/11—Movable parts; Contacts mounted thereon with indexing means
    • H01H19/115—Movable parts; Contacts mounted thereon with indexing means using molded elastic parts only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H2011/0081—Apparatus or processes specially adapted for the manufacture of electric switches using double shot moulding, e.g. for forming elastomeric sealing elements on form stable casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/60—Mechanical arrangements for preventing or damping vibration or shock

Definitions

  • the invention relates to an electrical switch with a switch housing, one on this mounted handle, one inside the switch housing arranged, locking recesses and having a guide the handle part coupled, guided by the guide link spring-loaded Curve follower, whereby by the interaction of the curve follower with the Guide link and their recesses the switch positions of the switch are defined.
  • the invention provides an electrical switch in which the Switching noises are reduced and not due to their spectral composition attract attention.
  • the guide link points to the Damping elements embedded damping elements made of elastic material on.
  • the curve follower therefore does not bump, at least in the locking positions directly on the wall of the guide backdrop, since this is there through the stored damping elements is covered.
  • the damping elements are preferably made of an elastomer material in two-component injection molding technology manufactured.
  • the guide link is on one separate guide part formed with the switch housing through a layer is decoupled from elastic material. Since the switching noise on the Guide part have their origin is a damping of the coupling between Guide part and switch housing in the sense of further noise reduction very effective.
  • the invention is particularly advantageous in the case of a rotary switch applied, especially in a light switch for vehicles.
  • FIG. 1 A general belongs to the control unit of the electric rotary switch cylindrical region of a switch housing 10, one as a rotary lever formed grip part 12, which is non-rotatably on a coaxial in the switch housing 10 arranged switching shaft 14 is coupled, and a surrounding the handle member 12 and the open end of the switch housing 10 overlapping ring diaphragm 16.
  • the Switch housings are two diametrically opposed guide pieces 18, 20 arranged from plastic.
  • Each guide piece 18, 20 has in its inner circumferential surface, designated 18a in FIG. 2, with a guide link several guideways, which are designated in Figure 2 with 18b and 18c.
  • the guideways 18b and 18c have a common section and two from this branched track sections at different heights.
  • the control shaft 14 carries two diametrically opposite, radial Each cam carrier is loaded radially outwards by a compression spring Locking cams, 21 in Figure 1, which forms a curve follower and in the guideways the shifting gate of the guide part 18 arranged opposite or 20 is running.
  • a compression spring Locking cams 21 in Figure 1
  • the compression spring By the compression spring, the locking cam 21 against the wall of the Leadership backdrop pressed.
  • the guideways are 18b, 18c of the guide link at the three provided at this switch Locking positions each with a locking recess in the one Damping element 22, 24, 26 is embedded from elastomer material. Furthermore, the Outer circumference of the guide parts 18, 20 with a damping layer 28 Provide elastomer material.
  • the damping elements 22, 24, 26 and the Damping layer 28 with the guide part 18 and 20 in Two-component injection molding technology made of plastic.
  • Wall parts are formed in the switch housing 10, between which the guide parts 18, 20 are inserted. A touch between them Wall parts and the guide parts only take place via the damping layer 28 instead of.

Landscapes

  • Push-Button Switches (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Lock And Its Accessories (AREA)
  • Switches With Compound Operations (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

Inside the switch housing is fitted a guide link motion with stop recesses. To the grip portion is coupled a sprung curved cam guided by the link motion. By cooperation of the cam with the link motion and its stop recesses are defined the switch positions. The guide link motion comprises elastic damping elements located at the stop recesses. The link motion is pref. formed on a separate guide member which is decoupled from the switch housing by a layer of elastic material.

Description

Die Erfindung betrifft einen elektrischen Schalter mit einem Schaltergehäuse, einem an diesem gelagerten Griffteil, einer im Inneren des Schaltergehäuses angeordneten, Rastausnehmungen aufweisenden Führungskulisse und einem mit dem Griffteil gekoppelten, durch die Führungskulisse geführten federbelasteten Kurvenfolger, wobei durch das Zusammenwirken des Kurvenfolgers mit der Führungskulisse und deren Rastausnehmungen die Schaltstellungen des Schalters definiert sind.The invention relates to an electrical switch with a switch housing, one on this mounted handle, one inside the switch housing arranged, locking recesses and having a guide the handle part coupled, guided by the guide link spring-loaded Curve follower, whereby by the interaction of the curve follower with the Guide link and their recesses the switch positions of the switch are defined.

Elektrische Schalter, bei denen die verschiedenen Schaltstellungen exakt und mechanisch stabil eingenommen werden müssen, sind beispielsweise Lichtschalter in Fahrzeugen. Durch das Einrasten des Griffteils in den verschiedenen Schaltstellungen wird dem Bediener ferner eine haptische Rückmeldung über den erfolgreichen Schaltvorgang vermittelt. Der Kurvenfolger wird durch eine Andrückfeder mit erheblicher Kraft gegen die Wand der Führungskulisse gedrückt, um einen positiven Einrastvorgang und stabile Rastpositionen zu gewährleisten. Die Schaltvorgänge werden allerdings von einem auffälligen Schaltgeräusch begleitet, das der Qualitätsanmutung abträglich ist. Electrical switches in which the different switching positions are exact and are mechanically stable, for example Light switches in vehicles. By snapping the handle part into the different switching positions, the operator is also a haptic Provided feedback on the successful switching process. The curve follower is pressed against the wall by a pressure spring with considerable force Guide link pressed to a positive engagement and stable To ensure rest positions. The switching operations are, however, by accompanied by a striking switching noise that detracts from the quality impression is.

Durch die Erfindung wird ein elektrischer Schalter geschaffen, bei dem die Schaltgeräusche reduziert sind und durch ihre spektrale Zusammensetzung nicht unangenehm auffallen. Gemäß der Erfindung weist die Führungskulisse an den Rastausnehmungen eingelagerte Dämpfungselemente aus elastischem Material auf. Der Kurvenfolger stößt daher zumindest in den Rastpositionen nicht unmittelbar an der Wand der Führungskulisse an, da diese dort durch die eingelagerten Dämpfungselemente abgedeckt ist. Die Dämpfungselemente werden vorzugsweise aus einem Elastomermaterial in Zwei-Komponenten-Spritzgießtechnik hergestellt.The invention provides an electrical switch in which the Switching noises are reduced and not due to their spectral composition attract attention. According to the invention, the guide link points to the Damping elements embedded damping elements made of elastic material on. The curve follower therefore does not bump, at least in the locking positions directly on the wall of the guide backdrop, since this is there through the stored damping elements is covered. The damping elements are preferably made of an elastomer material in two-component injection molding technology manufactured.

Bei der bevorzugten Ausführungsform ist die Führungskulisse an einem separaten Führungsteil gebildet, das mit dem Schaltergehäuse durch eine Schicht aus elastischem Material entkoppelt ist. Da die Schaltgeräusche an dem Führungsteil ihren Ursprung haben, ist eine Bedämpfung der Kopplung zwischen Führungsteil und Schaltergehäuse im Sinne einer weiteren Geräuschreduzierung sehr wirksam.In the preferred embodiment, the guide link is on one separate guide part formed with the switch housing through a layer is decoupled from elastic material. Since the switching noise on the Guide part have their origin is a damping of the coupling between Guide part and switch housing in the sense of further noise reduction very effective.

Mit besonderem Vorteil wird die Erfindung bei einem Drehschalter angewendet, insbesondere bei einem Lichtschalter für Fahrzeuge.The invention is particularly advantageous in the case of a rotary switch applied, especially in a light switch for vehicles.

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

  • Figur 1 einen axialen Teilschnitt eines elektrischen Drehschalters;
  • Figur 2 eine vergrößerte Perspektivansicht eines Führungsteils des Drehschalters; und
  • Figur 3 einen radialen Schnitt des in Figur 2 gezeigten Führungsteils.
Further features and advantages of the invention will become apparent from the following description of a preferred embodiment with reference to the accompanying drawings. The drawings show:
  • 1 shows a partial axial section of an electrical rotary switch;
  • Figure 2 is an enlarged perspective view of a guide member of the rotary switch; and
  • 3 shows a radial section of the guide part shown in Figure 2.

Von dem elektrischen Drehschalter ist in Figur 1 nur der Bedienteil dargestellt. Zu dem Bedienteil des elektrischen Drehschalters gehört ein allgemein zylinderförmiger Bereich eines Schaltergehäuses 10, ein als Drehhebel ausgebildetes Griffteil 12, das drehfest an einer koaxial im Schaltergehäuse 10 angeordneten Schaltwelle 14 angekoppelt ist, und eine das Griffteil 12 umgebende und das offene Ende des Schaltergehäuses 10 übergreifende Ringblende 16. In das Schaltergehäuse sind zwei einander diametral gegenüberliegende Führungsstücke 18, 20 aus Kunststoff angeordnet. Jedes Führungsstück 18, 20 weist in seiner inneren Umfangsfläche, in Figur 2 mit 18a bezeichnet, eine Führungskulisse mit mehreren Führungsbahnen auf, die in Figur 2 mit 18b und 18c bezeichnet sind. Die Führungsbahnen 18b und 18c haben einen gemeinsamen Abschnitt und zwei von diesem verzweigte, auf verschiedener Höhe gelegene Bahnabschnitte.Of the electrical rotary switch, only the operating part is shown in FIG. 1. A general belongs to the control unit of the electric rotary switch cylindrical region of a switch housing 10, one as a rotary lever formed grip part 12, which is non-rotatably on a coaxial in the switch housing 10 arranged switching shaft 14 is coupled, and a surrounding the handle member 12 and the open end of the switch housing 10 overlapping ring diaphragm 16. In the Switch housings are two diametrically opposed guide pieces 18, 20 arranged from plastic. Each guide piece 18, 20 has in its inner circumferential surface, designated 18a in FIG. 2, with a guide link several guideways, which are designated in Figure 2 with 18b and 18c. The guideways 18b and 18c have a common section and two from this branched track sections at different heights.

Die Schaltwelle 14 trägt zwei einander diametral gegenüberliegende, radiale Nockenträger mit je einem radial auswärts durch eine Druckfeder belasteten Rastnocken, 21 in Figur 1, der einen Kurvenfolger bildet und in den Führungsbahnen der Schaltkulisse des gegenüberliegend angeordneten Führungsteils 18 bzw. 20 läuft. Durch die Druckfeder wird der Rastnocken 21 gegen die Wand der Führungskulisse gedrückt.The control shaft 14 carries two diametrically opposite, radial Each cam carrier is loaded radially outwards by a compression spring Locking cams, 21 in Figure 1, which forms a curve follower and in the guideways the shifting gate of the guide part 18 arranged opposite or 20 is running. By the compression spring, the locking cam 21 against the wall of the Leadership backdrop pressed.

Wie besonders deutlich in Figur 2 dargestellt ist, sind die Führungsbahnen 18b, 18c der Führungskulisse an den drei bei diesem Schalter vorgesehenen Rastpositionen mit je einer Rastausnehmung versehen, in der ein Dämpfungselement 22, 24, 26 aus Elastomermaterial eingelagert ist. Ferner ist der Außenumfang der Führungsteile 18, 20 mit einer Dämpfungsschicht 28 aus Elastomermaterial versehen. Die Dämpfungselemente 22, 24, 26 sowie die Dämpfungsschicht 28 werden mit dem Führungsteil 18 bzw. 20 in Zweikomponenten-Spritzgießtechnik aus Kunststoff hergestellt.As is particularly clearly shown in FIG. 2, the guideways are 18b, 18c of the guide link at the three provided at this switch Locking positions each with a locking recess in the one Damping element 22, 24, 26 is embedded from elastomer material. Furthermore, the Outer circumference of the guide parts 18, 20 with a damping layer 28 Provide elastomer material. The damping elements 22, 24, 26 and the Damping layer 28 with the guide part 18 and 20 in Two-component injection molding technology made of plastic.

In dem Schaltergehäuse 10 sind Wandungsteile ausgebildet, zwischen denen die Führungsteile 18, 20 eingesetzt sind. Eine Berührung zwischen diesen Wandungsteilen und den Führungsteilen findet nur über die Dämpfungsschicht 28 statt.Wall parts are formed in the switch housing 10, between which the guide parts 18, 20 are inserted. A touch between them Wall parts and the guide parts only take place via the damping layer 28 instead of.

Durch die eingelagerten Dämpfungselemente 22, 24, 26 werden die Schaltvorgänge beim Einrasten der Rastnocken 21 an den Rastvertiefungen stark bedämpft. Zusätzlich wird die Schallübertragung von den Führungsteilen 18, 20 auf das Schaltergehäuse 10 durch die Dämpfungsschicht 28 bedämpft. Durch diese Maßnahmen wird nicht nur der absolute Schaltgeräuschpegel abgesenkt; es wird auch eine günstige spektrale Zusammensetzung des Schaltgeräuschs erreicht, so daß dieses nicht störend in Erscheinung tritt.Due to the embedded damping elements 22, 24, 26, the Switching operations when the latching cams 21 engage strongly at the latching recesses damped. In addition, the sound transmission from the guide parts 18, 20 damped on the switch housing 10 by the damping layer 28. By these measures not only reduce the absolute switching noise level; it a favorable spectral composition of the switching noise is also achieved, so that this does not appear to be a nuisance.

Claims (5)

Elektrischer Schalter mit einem Schaltergehäuse, einem an diesem gelagerten Griffteil, einer im Inneren des Schaltergehäuses angeordneten, Rastausnehmungen aufweisenden Führungskulisse und einem mit dem Griffteil gekoppelten, durch die Führungskulisse geführten federbelasteten Kurvenfolger, wobei durch das Zusammenwirken des Kurvenfolgers mit der Führungskulisse und deren Rastausnehmungen die Schaltstellungen des Schalters definiert sind, dadurch gekennzeichnet, dass die Führungskulisse an den Rastausnehmungen eingelagerte Dämpfungselemente aus elastischem Material aufweist.Electrical switch with a switch housing, a handle part mounted on this, a guide link arranged in the interior of the switch housing and having latching recesses and a spring-loaded cam follower coupled to the handle part and guided through the guide link, the switching positions due to the interaction of the cam follower with the guide link and its latching recesses of the switch are defined, characterized in that the guide link has damping elements embedded in elastic material on the latching recesses. Schalter nach Anspruch 1, dadurch gekennzeichnet, dass die Führungskulisse an einem separaten Führungsteil gebildet ist, das mit dem Schaltergehäuse durch eine Schicht aus elastischem Material entkoppelt ist.Switch according to claim 1, characterized in that the guide link is formed on a separate guide part which is decoupled from the switch housing by a layer of elastic material. Schalter nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das elastische Material aus einem Elastomer besteht.Switch according to claim 1 or 2, characterized in that the elastic material consists of an elastomer. Schalter nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die eingelagerten Dämpfungselemente in 2-Komponenten-Spritzgießtechnik hergestellt sind.Switch according to one of the preceding claims, characterized in that the stored damping elements are manufactured in 2-component injection molding technology. Schalter nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Griffteil mit einer im Schaltergehäuse drehbar gelagerten Achse gekoppelt ist und die Führungskulisse mit dieser Achse koaxial angeordnet ist.Switch according to one of the preceding claims, characterized in that the handle part is coupled to an axis rotatably mounted in the switch housing and the guide link is arranged coaxially with this axis.
EP02009267A 2001-10-22 2002-04-26 Electric switch Expired - Lifetime EP1304714B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20117282U DE20117282U1 (en) 2001-10-22 2001-10-22 Electrical switch
DE20117282U 2001-10-22

Publications (2)

Publication Number Publication Date
EP1304714A1 true EP1304714A1 (en) 2003-04-23
EP1304714B1 EP1304714B1 (en) 2004-07-21

Family

ID=7963126

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02009267A Expired - Lifetime EP1304714B1 (en) 2001-10-22 2002-04-26 Electric switch

Country Status (6)

Country Link
US (1) US6680450B2 (en)
EP (1) EP1304714B1 (en)
JP (1) JP3733088B2 (en)
CN (1) CN1202540C (en)
BR (1) BRPI0204283B1 (en)
DE (2) DE20117282U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2192604A1 (en) * 2008-11-28 2010-06-02 Thales Data input device with improved tactile sensation

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20212255U1 (en) * 2002-08-08 2002-12-19 TRW Automotive Electronics & Components GmbH & Co. KG, 78315 Radolfzell The multifunctional pushbutton switch
US20070142478A1 (en) * 2005-12-21 2007-06-21 Erning Xia Combination antimicrobial composition and method of use
US20070140897A1 (en) * 2005-12-21 2007-06-21 Hongna Wang Ph stable biguanide composition and method of treatment and prevention of infections
DE102005062283B4 (en) * 2005-12-24 2023-06-22 Kostal Automobil Elektrik Gmbh & Co. Kg Electrical switch
DE102007038547B4 (en) 2007-08-16 2024-09-19 Kostal Automobil Elektrik Gmbh & Co. Kg Rotary switch
DE102009048330A1 (en) * 2009-10-06 2011-04-07 Behr-Hella Thermocontrol Gmbh Control unit for component i.e. ventilation, heating and/or air-conditioning component, of vehicle, has latching projection formed as rolling body with peripheral region, where rolling body is formed of sound-absorbing material at region
CN106653447B (en) * 2017-01-25 2019-04-02 罗江祺 A kind of knob with damping structure and the household electrical appliance upper cover using the knob

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DE3149944A1 (en) * 1981-12-17 1983-07-07 Rau Swf Autozubehoer Electrical switches, especially for motor vehicles
US4490588A (en) * 1981-10-20 1984-12-25 International Standard Electric Corporation Rotary switch
DE3727495C1 (en) * 1987-08-18 1988-11-24 Kostal Leopold Gmbh & Co Kg Latching device for electrical switches

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US3711669A (en) * 1972-01-28 1973-01-16 Cutler Hammer Inc Switch having a shock-proof lighted toggle switch
DE3834390C1 (en) * 1988-10-10 1989-12-07 Leopold Kostal Gmbh & Co Kg, 5880 Luedenscheid, De
US5418530A (en) * 1991-05-31 1995-05-23 Compaq Computer Corporation Key with silent return movement
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US6419068B1 (en) * 2000-10-24 2002-07-16 Ford Global Technologies, Inc. Park gear damper for an automatic transmission for an automotive vehicle

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US4490588A (en) * 1981-10-20 1984-12-25 International Standard Electric Corporation Rotary switch
DE3149944A1 (en) * 1981-12-17 1983-07-07 Rau Swf Autozubehoer Electrical switches, especially for motor vehicles
DE3727495C1 (en) * 1987-08-18 1988-11-24 Kostal Leopold Gmbh & Co Kg Latching device for electrical switches

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2192604A1 (en) * 2008-11-28 2010-06-02 Thales Data input device with improved tactile sensation
FR2939236A1 (en) * 2008-11-28 2010-06-04 Thales Sa DATA ENTRY DEVICE WITH IMPROVED TOUCH SENSATION

Also Published As

Publication number Publication date
EP1304714B1 (en) 2004-07-21
US6680450B2 (en) 2004-01-20
CN1202540C (en) 2005-05-18
JP2003132755A (en) 2003-05-09
BR0204283A (en) 2003-09-16
US20030075430A1 (en) 2003-04-24
JP3733088B2 (en) 2006-01-11
CN1414585A (en) 2003-04-30
DE20117282U1 (en) 2002-02-28
BRPI0204283B1 (en) 2016-05-10
DE50200654D1 (en) 2004-08-26

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