EP1648009A1 - Interrupteur à bouton-poussoir pour un tableau de commande d'un dispositif pour véhicule - Google Patents

Interrupteur à bouton-poussoir pour un tableau de commande d'un dispositif pour véhicule Download PDF

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Publication number
EP1648009A1
EP1648009A1 EP05109351A EP05109351A EP1648009A1 EP 1648009 A1 EP1648009 A1 EP 1648009A1 EP 05109351 A EP05109351 A EP 05109351A EP 05109351 A EP05109351 A EP 05109351A EP 1648009 A1 EP1648009 A1 EP 1648009A1
Authority
EP
European Patent Office
Prior art keywords
actuating projection
key
membrane element
projection
key element
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Withdrawn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
EP05109351A
Other languages
German (de)
English (en)
Inventor
Christian Lomberg
Andreas Hagen
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.)
Behr Hella Thermocontrol GmbH
Original Assignee
Behr Hella Thermocontrol 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 Behr Hella Thermocontrol GmbH filed Critical Behr Hella Thermocontrol GmbH
Publication of EP1648009A1 publication Critical patent/EP1648009A1/fr
Withdrawn legal-status Critical Current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
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/52—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state immediately upon removal of operating force, e.g. bell-push switch
    • 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
    • H01H13/705—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 characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2217/00—Facilitation of operation; Human engineering
    • H01H2217/008—Pretravel to avoid inadvertent switching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/064—Limitation of actuating pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/08—Actuators composed of different parts
    • H01H2221/082—Superimposed actuators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2227/00—Dimensions; Characteristics
    • H01H2227/032—Operating force
    • H01H2227/034—Regulation of operating force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2235/00—Springs
    • H01H2235/03—Two serial springs

Definitions

  • the invention relates to a push-button switch for an operating unit of a vehicle component and, in particular, to a push-button switch for the control unit of a flag-conditioning system.
  • the control panels of various electrical / electronic devices are equipped, inter alia, with push buttons that allow operation by simply pressing a button element.
  • Behind the key element is a switch housing, in which a movable switching member is arranged, which in turn is provided with an actuating projection projecting from the housing. By depressing the actuating projection of the actual switching operation is triggered.
  • the switching element is biased in the direction of its rest position, that is in the direction of the maximum projection of the actuating projection, over the relevant side wall of the switch housing.
  • An object of the invention is to provide a key switch for a control unit of a vehicle component, which has a manufacturing tolerances compensating biasing spring system at short stroke, which is simple in design and does not suffer from the above-mentioned disadvantages.
  • the key switch according to the invention is based on the idea of realizing the bias of the key element in its rest position by a resilient element that on the one hand on the key element and on the other hand also resiliently biased switching element or its actuating projection is supported.
  • a bias for the key element is an elastic membrane element which biases the key element in its rest position.
  • the membrane element In the first phase of depressing the key element, the membrane element is deformed against its bias until the key element abuts with its the actuating projection of the switching member associated surface area on the membrane element. From this point, the key element and membrane element are moved against the bias of the actuating projection, which can then be pressed down. In this phase additionally applied force results exclusively from the bias of the switching element.
  • the key switch has a switch housing, via whose one side wall an actuating projection protrudes, which is part of a movably mounted switching member within the switch housing.
  • the key element Above the actuating projection of the switching element is the key element, which has one of the actuating projection with the protruding side wall of the switch housing nominalfiegende side surface.
  • the key element At this side surface is the key element with a the actuating projection opposite and associated first surface area and with provided a second surface area.
  • the elastic membrane element which has a first surface facing the switch housing and a second surface facing the key element. Within the first surface, the membrane element rests against the actuating projection of the switching member, while the second surface has a projection which rests against the second surface region of the key element.
  • the key element is biased by the elevation of the membrane element in its rest or disengaged position.
  • the key element can now be depressurized while deforming the elastic membrane element until its first surface area assigned in the actuating projection of the switching element comes into contact with the membrane element. From this phase to move further depression of the key element this and the membrane element against the actuating projection and actuate in this way the switching element.
  • the membrane element is held on the actuating projection of the switching element.
  • These two components can be assembled at the factory.
  • the unit formed in this way can then be applied to a printed circuit board in SMD technology and soldered there.
  • the material of the membrane element withstands the temperatures prevailing during the reflow process.
  • the membrane element made of plastic material and in particular of silicone material.
  • the elevation of the membrane element is in particular convex or spherical.
  • the actuating projection of the switching element is annular and in particular annular.
  • the first area of the key element which serves to actuate the actuating projection, extends annularly and in particular circular.
  • the elevation of the membrane element is thus surrounded by the annular actuating projection and is preferably arranged concentrically to this.
  • the diaphragm member bridges the area enclosed by the annular operation projection.
  • the second surface area of the key element is expediently designed as a central projection, which protrudes with respect to the first surface area of the key element.
  • this is not necessarily required, since it comes through the elevation of the membrane element in the rest or disengagement position of the key element to a distance between the first surface area of the key element and the membrane element.
  • actuating projection In an annular embodiment of the actuating projection, it is expedient to hold the membrane element by a collar engaging around the actuating projection on the actuating projection.
  • a second alternative of the key switch according to the invention provides a pin-shaped actuating projection of the switching element, against which the membrane element rests in a preferably central region.
  • the elevation of the membrane element extends annularly and in particular annularly and thus concentrically around the pin-shaped actuating projection.
  • the second area of the key element, which serves to make contact with the elevation of the membrane element is then preferably designed as a collar or annular projection. But it is also possible that the membrane element facing side of the key element is flat and has no projections. The distance between the actuating projection of the switching member associated first surface area of the key element and the membrane element in the rest or disengagement position of the key element is ensured by the elevation of the membrane element.
  • a key switch 10 according to a first embodiment of the invention, a switch housing 12 with a switching member 14, which in turn has an annular actuating projection 16 which projects beyond the upper side wall 18 of the switch housing 12 in this embodiment.
  • an elastic membrane element 20 made of, for example, silicone material, which surrounds the actuating projection 18 from the outside with a formed on its underside 22 collar 24.
  • the membrane element 20 On the upper side 26, the membrane element 20 has a central spherical elevation 28.
  • a key element 30, which on its underside 31 a the actuating projection 16 opposite annular first Ff kauen Scheme 32 and a having centrally disposed second surface area 34. Within its second area 34, the key element 30 is in the rest or disengagement position shown in FIG. 1 at the elevation 28 of the membrane element 20, which in turn provides for the bias of the key element 30 in its rest or disengaged position.
  • the latter In the first phase of depression of the key element 30, the latter is first moved against the membrane element 20, which deflects the key element 30 until its first surface region 32 comes into contact with the membrane element 20 or its upper side 26.
  • the key element 30 For in the rest or Ausruckposition of the key element 30 as shown in FIG. 2 is located between the top 26 of the membrane element 20 and the first surface portion 32 of the key member 30, a gap 36. The situation after the bridging of this gap 36 is shown in Fig. 2 ; In this phase, the key element 30 is depressed by the distance ⁇ 1. During this phase of depression, it was only necessary to work against the biasing force of the membrane element 20.
  • FIGS. 4 to 6 Corresponding conditions arise in an alternatively trained push-button, as shown in FIGS. 4 to 6 is shown.
  • the individual Elements and regions of the pushbutton 10 'shown in FIGS. 4 to 6 are those of the pushbutton 10 of FIGS. 1 to 3 correspond to or identical to these, they are provided with the same reference numerals.
  • the elevation 28 of the membrane element 20 in the second embodiment is annular.
  • the membrane element 20 has a central recess 24 ', which serves to receive the end of the actuating projection 16 of the switching member 14.

Landscapes

  • Push-Button Switches (AREA)
EP05109351A 2004-10-12 2005-10-07 Interrupteur à bouton-poussoir pour un tableau de commande d'un dispositif pour véhicule Withdrawn EP1648009A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410049593 DE102004049593B3 (de) 2004-10-12 2004-10-12 Tastschalter für eine Bedieneinheit einer Fahrzeugkomponente

Publications (1)

Publication Number Publication Date
EP1648009A1 true EP1648009A1 (fr) 2006-04-19

Family

ID=35517289

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05109351A Withdrawn EP1648009A1 (fr) 2004-10-12 2005-10-07 Interrupteur à bouton-poussoir pour un tableau de commande d'un dispositif pour véhicule

Country Status (2)

Country Link
EP (1) EP1648009A1 (fr)
DE (1) DE102004049593B3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2266126A1 (fr) * 2008-04-14 2010-12-29 EAO Holding AG Bouton-poussoir
DE102018000423B3 (de) 2018-01-19 2019-07-04 Audi Ag Tastschalter, Kraftfahrzeug mit einem solchen sowie Verfahren zur Montage eines solchen Tastschalters
DE102019005800A1 (de) * 2019-08-17 2021-02-18 Kostal Automobil Elektrik Gmbh & Co. Kg Elektrischer Tastschalter

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2372015A (en) * 2001-02-09 2002-08-14 Devlin Electronics Ltd Keycap assembly including a resilient buffer suitable for use with keyboards located within indoor or outdoor public kiosks
EP1422733A2 (fr) * 2002-11-20 2004-05-26 Samsung Electronics Co., Ltd. Ensemble de boutons poussoir

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29819413U1 (de) * 1998-10-30 2000-03-02 AEG Hausgeräte GmbH, 90429 Nürnberg Bedienvorrichtung, insbesondere von Haushaltgeräten

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2372015A (en) * 2001-02-09 2002-08-14 Devlin Electronics Ltd Keycap assembly including a resilient buffer suitable for use with keyboards located within indoor or outdoor public kiosks
EP1422733A2 (fr) * 2002-11-20 2004-05-26 Samsung Electronics Co., Ltd. Ensemble de boutons poussoir

Also Published As

Publication number Publication date
DE102004049593B3 (de) 2006-02-09

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