EP1701368B1 - Natte de commutation pour un interrupteur électrique - Google Patents

Natte de commutation pour un interrupteur électrique Download PDF

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Publication number
EP1701368B1
EP1701368B1 EP05005330A EP05005330A EP1701368B1 EP 1701368 B1 EP1701368 B1 EP 1701368B1 EP 05005330 A EP05005330 A EP 05005330A EP 05005330 A EP05005330 A EP 05005330A EP 1701368 B1 EP1701368 B1 EP 1701368B1
Authority
EP
European Patent Office
Prior art keywords
sensor mat
switch according
actuating element
light
switching
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.)
Revoked
Application number
EP05005330A
Other languages
German (de)
English (en)
Other versions
EP1701368A1 (fr
Inventor
Friedhelm Lotz
Ingo Petzhold
Anja Martens
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.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34934204&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1701368(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Delphi Technologies Inc filed Critical Delphi Technologies Inc
Priority to EP05005330A priority Critical patent/EP1701368B1/fr
Priority to DE502005007313T priority patent/DE502005007313D1/de
Priority to US11/369,250 priority patent/US20060219539A1/en
Publication of EP1701368A1 publication Critical patent/EP1701368A1/fr
Application granted granted Critical
Publication of EP1701368B1 publication Critical patent/EP1701368B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01H13/70—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
    • H01H13/704—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 the layers, e.g. by their material or structure
    • 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
    • H01H13/83—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 characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00—Layers
    • H01H2209/068—Properties of the membrane
    • H01H2209/074—Properties of the membrane elastomeric
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00—Layers
    • H01H2209/068—Properties of the membrane
    • H01H2209/082—Properties of the membrane transparent
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/036—Light emitting elements
    • H01H2219/05—Key offset in relation to switch site
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/054—Optical elements
    • H01H2219/064—Optical isolation of switch sites

Definitions

  • the invention relates to an electrical switch having a switching mat and a backlit actuating element mounted in a housing for acting on switching contacts according to the preamble of claim 1
  • an actuating element of an electrical switch a safety mat with recorded in Domen contacts for acting on fixed contacts, for example, a corresponding circuit board assigned to the backlighting of the usually a symbol having actuator, the circuit board carries light bulbs, z. B. LEDs, whose light radiates from a transparent or slightly hazy and elastic material made of switching mat. It proves to be problematic that light emitted by the light source as stray light often adversely affects the desired appearance of the switch, the stray light often being visible to a user through a gap between the actuator and a housing supporting the actuator, and thus the visual appearance the switch is unfavorable.
  • the DE 196 41 786 A1 shows a switching mat with individual switching elements, via which a contact is made to a circuit board.
  • the switching elements have cavities into which light is coupled, wherein key surfaces of the switching mat made of an opaque material are translucent. Due to the opacity of the material of the switching mat, the leakage of stray light to a design surface is avoided.
  • the keypad is first painted and then the paint is removed in the key area by means of a laser, which is associated with considerable costs. Furthermore, it is necessary, in particular for stylistic reasons, to arrange a rigid actuating element above the switching mat.
  • a switchboard with pressure switches and an unbreakable membrane is known, which is particularly opaque to light.
  • the membrane sealingly spans the panel and has domes into which LEDs protrude.
  • the switching mat In order to favor a targeted transmission of the switching mat, preferably has to be screened through the wall of the switching mat on the other walls reduced thickness.
  • the switching mat on at least one dome for receiving a switching contact, which is associated with at least one fixed contact.
  • the dome due to its design enables a tactile detection of the switching.
  • the fixed contact is formed on a printed circuit board or by a stamped grid of the switch.
  • a light source within the housing of the switch preferably carries the printed circuit board or the lead frame a light emitting element, in particular an LED.
  • the actuator is translucent in a symbol area.
  • the actuating element is designed as a button and acted upon with a peripheral edge at its free, the switching mat associated end of the dome of the switching mat.
  • the arrangement of additional switching elements for actuating the dome is avoided.
  • the bottom-mounted switching mat on at least one light-emitting element spanning bulge, which projects into the actuating element.
  • the switching mat can be arranged for example on the circuit board or a socket of the housing. The light emitted by the light source penetrates the bulge and enters a region between the switching mat and the actuator to backlight its symbol.
  • the switching mat is made of a silicone.
  • the silicone is relatively easy to color and process and has the required flexibility or elasticity.
  • FIG. 1 shows a sectional view of an electrical switch with a switching mat according to the invention.
  • the switch 1 comprises a housing 2 in which two actuating elements 4 designed as buttons 3 are mounted, each with a translucent symbol 5 on the upper side.
  • the keys 3 have a peripheral edge 6, are arranged under each equipped with a switching contact dome 7 of a switching mat 8.
  • the edge side of a circuit board 9 cross-switching mat 8 made of silicone has protrusions 10 which protrude into the associated key 3. In the bulges 10 are electrically connected to the circuit board 9 lighting elements 11 for backlighting the symbols 5 of the made of an opaque material key.
  • the silicone of the switching mat 8 is dyed with black color pigments whose weight fraction is about 0.1%.

Landscapes

  • Push-Button Switches (AREA)

Claims (9)

  1. Commutateur électrique comportant un tapis de commutation et un élément d'actionnement (4) rétroéclairé monté dans un boîtier (2) pour solliciter des contacts de commutation, au moins un des contacts de commutation étant associé au tapis de commutation (8), l'élément d'actionnement (4) étant réalisé sous forme de touche (3) et sollicitant le tapis de commutation (8), le tapis de commutation (8) étant teinté en une couleur foncée de telle sorte que d'une part, de la lumière diffusée est absorbée par le tapis de commutation (8) et d'autre part, le tapis de commutation (8) laisse passer de la lumière pour le rétroéclairage de l'élément d'actionnement (4), caractérisé en ce que le tapis de commutation (8) est teinté avec un colorant noir ou des pigments colorés noirs et la part du colorant ou des pigments colorés est inférieure à 0,5 %, en particulier à 0,1%.
  2. Commutateur selon la revendication 1, caractérisé en ce que la paroi à éclairer par transparence du tapis de commutation (8) présente une épaisseur réduite par rapport aux autres parois.
  3. Commutateur selon la revendication 1 ou 2, caractérisé en ce que le tapis de commutation (8) présente au moins un dôme (7) destiné à recevoir un contact de commutation auquel est associé au moins un contact fixe.
  4. Commutateur selon la revendication 3, caractérisé en ce que le contact fixe est réalisé sur une carte à circuits imprimés (9) ou par un grillage estampé du commutateur (1).
  5. Commutateur selon la revendication 4, caractérisé en ce que la carte à circuits imprimés (9) ou le grillage estampé porte un élément d'éclairage (11), en particulier une diode électroluminescente.
  6. Commutateur selon l'une des revendications 1 à 5, caractérisé en ce que l'élément d'actionnement (4) est translucide dans une zone de symboles.
  7. Commutateur selon l'une des revendications 1 à 6, caractérisé en ce que l'élément d'actionnement (4) réalisé sous forme de touche (3) sollicite le dôme (7) du tapis de commutation (8) avec un bord (6) côté périphérique à son extrémité libre associée au tapis de commutation (8).
  8. Commutateur selon l'une des revendications 1 à 7, caractérisé en ce que le tapis de commutation (8) fixé côté fond présente au moins un renflement (10) recouvrant l'élément d'éclairage (11), lequel fait saillie dans l'élément d'actionnement (4).
  9. Commutateur selon l'une des revendications 1 à 8, caractérisé en ce que le tapis de commutation (8) est réalisé en une silicone.
EP05005330A 2005-03-11 2005-03-11 Natte de commutation pour un interrupteur électrique Revoked EP1701368B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP05005330A EP1701368B1 (fr) 2005-03-11 2005-03-11 Natte de commutation pour un interrupteur électrique
DE502005007313T DE502005007313D1 (de) 2005-03-11 2005-03-11 Schaltmatte für einen elektrischen Schalter
US11/369,250 US20060219539A1 (en) 2005-03-11 2006-03-07 Switch mat for an electrical switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05005330A EP1701368B1 (fr) 2005-03-11 2005-03-11 Natte de commutation pour un interrupteur électrique

Publications (2)

Publication Number Publication Date
EP1701368A1 EP1701368A1 (fr) 2006-09-13
EP1701368B1 true EP1701368B1 (fr) 2009-05-20

Family

ID=34934204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05005330A Revoked EP1701368B1 (fr) 2005-03-11 2005-03-11 Natte de commutation pour un interrupteur électrique

Country Status (3)

Country Link
US (1) US20060219539A1 (fr)
EP (1) EP1701368B1 (fr)
DE (1) DE502005007313D1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6299320B1 (en) * 1999-07-01 2001-10-09 Alps Electric Co., Ltd. Illuminated switch unit

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5686723U (fr) * 1979-12-07 1981-07-11
JPH01154414A (ja) * 1987-11-20 1989-06-16 Fuji Rubber Kk 照光式接点ゴムの製造法
JPH0476219U (fr) * 1990-11-15 1992-07-03
US5491313A (en) * 1994-07-22 1996-02-13 General Motors Corporation Halo lighting for keypad switch assemblies
JP3103833B2 (ja) * 1994-08-10 2000-10-30 信越ポリマー株式会社 照光式押釦スイッチ装置
US6229320B1 (en) * 1994-11-18 2001-05-08 Fujitsu Limited IC socket, a test method using the same and an IC socket mounting mechanism
US5661279A (en) * 1995-10-26 1997-08-26 Sunarrow Co., Ltd. Pushbutton switch
US5718326A (en) * 1996-07-22 1998-02-17 Delco Electronics Corporation Backlit button/switchpad assembly
US5739486A (en) * 1996-08-07 1998-04-14 Ford Motor Company Push-button system for control panels
DE19641786A1 (de) 1996-10-10 1998-04-16 Bosch Gmbh Robert Schaltmatte mit hinterleuchteten Schaltelementen
IT236357Y1 (it) * 1997-11-28 2000-08-08 Bitron Spa Tastiera di controllo per una macchina automatica, in particolare unamacchina distributrice di bevande.
US6326569B1 (en) * 1998-03-31 2001-12-04 Key Plastics, Inc. Control panel assembly and method of making same
US20030006128A1 (en) * 2001-07-03 2003-01-09 Giles John T. Two-shot molded backlit switch cap and method of manufacture
EP1571682A1 (fr) * 2004-03-02 2005-09-07 Nec Corporation Feuille à touches transparente, touches d'entrée utilisant une feuille transparente et équipement électronique à touches d'entrée

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6299320B1 (en) * 1999-07-01 2001-10-09 Alps Electric Co., Ltd. Illuminated switch unit

Also Published As

Publication number Publication date
US20060219539A1 (en) 2006-10-05
EP1701368A1 (fr) 2006-09-13
DE502005007313D1 (de) 2009-07-02

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