EP0572993A1 - Commutateur électrique - Google Patents

Commutateur électrique Download PDF

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Publication number
EP0572993A1
EP0572993A1 EP93108834A EP93108834A EP0572993A1 EP 0572993 A1 EP0572993 A1 EP 0572993A1 EP 93108834 A EP93108834 A EP 93108834A EP 93108834 A EP93108834 A EP 93108834A EP 0572993 A1 EP0572993 A1 EP 0572993A1
Authority
EP
European Patent Office
Prior art keywords
switching device
switching
spring
electrical switching
electrical
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Withdrawn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
EP93108834A
Other languages
German (de)
English (en)
Inventor
Heinz-Dieter Schmitz
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.)
ABB Patent GmbH
Original Assignee
ABB Patent 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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0572993A1 publication Critical patent/EP0572993A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/30—Energy stored by deformation of elastic members by buckling of disc springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5805—Connections to printed circuits
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/80—User interfaces
    • E05Y2400/85—User input means
    • E05Y2400/852—Sensors
    • E05Y2400/854—Switches
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/80—User interfaces
    • E05Y2400/85—User input means
    • E05Y2400/856—Actuation thereof
    • E05Y2400/858—Actuation thereof by body parts, e.g. by feet
    • E05Y2400/86—Actuation thereof by body parts, e.g. by feet by hand
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/55—Windows
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/01—Application power window

Definitions

  • the invention relates to an electrical switching device, in particular switches or buttons, which is arranged on a circuit board, with fixed contact pieces and at least one movable contact piece and with a switching spring which cooperates with the at least one movable contact piece and is held on the circuit board.
  • a switching device which is designed as a button with snap contact and has a low overall height.
  • the snap contact is arranged on a printed circuit board in the correct position and function, and is sealed and fixed airtight on the printed circuit board by means of an adhesive film.
  • this arrangement behaves similarly to a bellows, so that dust, moist air and the like are sucked into the switching system with each switching operation, unless all-round good adhesive adhesion of the cover film is guaranteed.
  • solder residues and dirt and the like act as adhesion preventers, so that the adhesive bond can be interrupted locally.
  • the switching spring is integrally connected to the at least one movable contact piece and that a plastic molded part lying on the printed circuit board is provided, in which the fixed contact pieces are arranged and which receives the switching spring.
  • the switching spring serves as a movable contact piece.
  • a preferred embodiment of the invention provides that at least two switching springs are provided, which are used for the optional contacting of a common fixed contact piece.
  • each switching spring has a triangular shape.
  • An arrangement of the switching springs, in which the switching springs point towards one another, has proven to be particularly advantageous when it comes to contacting a common fixed contact piece.
  • the switching spring is made of a highly conductive spring material and is designed as a self-resetting snap contact.
  • the switching spring is curved or it can have a trough-shaped impression, which gives the switching spring a monostable switching behavior.
  • the switching springs In order to improve the contacting with the fixed contact pieces, it may be expedient to provide the switching springs with bulges at the points provided for contacting. These bulges can be formed either by appropriate impressions or by molding.
  • the switching device according to the invention with all the configurations described above is designed as a short-stroke switching device with a switching travel ⁇ 2 mm.
  • a preferred use of the switching device according to the invention can be installed in a multiple switching device, for. B. window switch for motor vehicles may be provided, each switching spring by an actuator, for. B. rocker is acted upon.
  • FIG. 1 shows an electrical switching device 10, which is arranged on a printed circuit board 12 and has two switching springs 14 and a molded plastic part 16 with fixed contact pieces 18, 20, 22 held therein.
  • the two switching springs 14 are flat and are arranged at a short distance from the fixed contact pieces 18, 20, 22.
  • the switching springs 14 are preferably made of highly conductive spring bronze and serve as a movable contact piece.
  • the switching springs 14 When the electrical switching device 10 is actuated by depressing one of the switching springs 14, the fixed contact pieces 18, 20, 22 located below the relevant switching spring 14 are connected to one another and thereby one or more circuits are closed. As can also be seen from the illustration in FIG. 1, the switching springs 14 are each curved slightly upward, ie away from the fixed contact pieces, which enables their function as a snap contact. Due to the material-related stiffness of the switching springs 14, these have namely when they are actuated by pressing down in the direction of the fixed contact piece 18, 20, 22, the endeavor to return to their starting position.
  • FIG. 2 shows a top view of the electrical switching device shown and described in FIG. 1, in particular the triangular design of the switching springs 14 and their arrangement on the plastic molded part 16.
  • the other features shown are designated by the corresponding reference numerals as in FIG. 1.
  • the explanations in this regard accordingly also apply to the representation in FIG. 2.
  • the attachment of the switching springs 14 on the plastic molded part 16 can be provided in various ways. Either the switch springs 14 are fixed in accordance with the switches of the known type by means of an adhesive film on the plastic molded part 16, the problem of the reduction in liability which arises in the known switches due to solder residues and contaminants not being concerned here, or the switch springs 14 are shaped and / or or firmly anchored in the plastic part 16, for. B. trapped between lateral boundaries.
  • Such lateral boundaries can, for. B. on each of the triangular sides of the switching spring 14 on the plastic part 16.
  • the triangular edges of the switch springs are each non-positively supported at the limits not shown here, the elasticity inherent in the plastic being used. As a result, slight changes in distance when the switching spring 14 is actuated are irrelevant.
  • Another possibility of holding the switching springs 14 may be that the plastic part 16, for. B. also in the region of the triangle hook-like projections are provided on the plastic part 16, between which the switching springs 14 are guided and are held by the hook-shaped projection of the molding.
  • FIG. 3 shows a switching device 24 in which the switching device 10 according to the invention known from FIG. 1 or FIG. It is a so-called window switch for installation in motor vehicles.
  • a circuit board 12 is inserted in a housing 26, on which, in addition to the two switching devices 10, different paired connecting contacts 28 resistors 30 and light-emitting diodes 32 can be seen.
  • the low overall height of the switching device 10 according to the invention proves to be advantageous, since such switches are often accommodated in the door trim of the motor vehicles, where, due to the design, there are only small installation depths and switches installed there may only have small overall heights.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Tumbler Switches (AREA)
  • Push-Button Switches (AREA)
EP93108834A 1992-06-05 1993-06-02 Commutateur électrique Withdrawn EP0572993A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924218545 DE4218545A1 (de) 1992-06-05 1992-06-05 Elektrisches Schaltgerät
DE4218545 1992-06-05

Publications (1)

Publication Number Publication Date
EP0572993A1 true EP0572993A1 (fr) 1993-12-08

Family

ID=6460451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93108834A Withdrawn EP0572993A1 (fr) 1992-06-05 1993-06-02 Commutateur électrique

Country Status (2)

Country Link
EP (1) EP0572993A1 (fr)
DE (1) DE4218545A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2515315A1 (fr) * 2011-04-22 2012-10-24 Alps Electric Co., Ltd. Élément de contact mobile et dispositif de commutation utilisant un élément de contact mobile

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19541380A1 (de) * 1995-11-07 1997-05-15 Teves Gmbh Alfred Schalter mit auf die Leiterplatte aufgerasteten Schaltmodulen
DE19713769C1 (de) * 1997-04-03 1998-06-10 Hermann Kohn Elektrischer Tastschalter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2455522A1 (de) * 1973-11-27 1975-06-05 Gte Atea N V S A Druckschalter und seine anwendung in einem drucktastenwahlschalteraggregat fuer fernsprechgeraete
DE2705756A1 (de) * 1977-02-11 1978-08-17 Alps Electric Co Ltd Druckknopfschalter fuer elektronische tischrechner o.dgl.
DE2931370A1 (de) * 1979-08-02 1981-02-05 Petrick Gmbh Elektro Mech Tipptaste
US4331851A (en) * 1980-06-16 1982-05-25 Texas Instruments Incorporated Printed circuit board having data input devices mounted thereon and input devices therefor
GB2229577A (en) * 1989-03-23 1990-09-26 Well Treasure Ind Ltd Mounting contact elements on printed circuit boards

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1308692A (en) * 1970-04-01 1973-02-21 Sumlock Anita Electronics Ltd Electrical switches
DE7130971U (de) * 1971-08-12 1971-11-25 Sachsse L Schalteranordnung für gedruckte Schaltungen
DE2848588C2 (de) * 1978-11-09 1982-09-09 Daut & Rietz KG Fabrik für Elektrofeinmechanik GmbH & Co, 8500 Nürnberg Tipptaste
DE7837597U1 (de) * 1978-12-19 1979-04-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Tastenfeld mit mehreren Tastschaltern
DE3520211A1 (de) * 1985-06-05 1986-12-11 Elektronikus Mérökészülékek Gyára, Budapest Schaltelement mit drei aufsetzpunkten
JPH0350585Y2 (fr) * 1985-11-07 1991-10-29
DE3613704A1 (de) * 1986-04-23 1987-10-29 Bsg Schalttechnik Stufenschalter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2455522A1 (de) * 1973-11-27 1975-06-05 Gte Atea N V S A Druckschalter und seine anwendung in einem drucktastenwahlschalteraggregat fuer fernsprechgeraete
DE2705756A1 (de) * 1977-02-11 1978-08-17 Alps Electric Co Ltd Druckknopfschalter fuer elektronische tischrechner o.dgl.
DE2931370A1 (de) * 1979-08-02 1981-02-05 Petrick Gmbh Elektro Mech Tipptaste
US4331851A (en) * 1980-06-16 1982-05-25 Texas Instruments Incorporated Printed circuit board having data input devices mounted thereon and input devices therefor
GB2229577A (en) * 1989-03-23 1990-09-26 Well Treasure Ind Ltd Mounting contact elements on printed circuit boards

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2515315A1 (fr) * 2011-04-22 2012-10-24 Alps Electric Co., Ltd. Élément de contact mobile et dispositif de commutation utilisant un élément de contact mobile

Also Published As

Publication number Publication date
DE4218545A1 (de) 1993-12-09

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