EP0911844A2 - Kontaktanordnung für ein elektrisches Gerät - Google Patents
Kontaktanordnung für ein elektrisches Gerät Download PDFInfo
- Publication number
- EP0911844A2 EP0911844A2 EP98118526A EP98118526A EP0911844A2 EP 0911844 A2 EP0911844 A2 EP 0911844A2 EP 98118526 A EP98118526 A EP 98118526A EP 98118526 A EP98118526 A EP 98118526A EP 0911844 A2 EP0911844 A2 EP 0911844A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- carrier part
- bellows
- flange
- housing wall
- 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- Withdrawn
Links
Images
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
- H01H13/12—Movable parts; Contacts mounted thereon
-
- 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
- H01H13/08—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch
Definitions
- the invention relates to a contact arrangement for a Electrical device with the in the preamble of claim 1 specified features.
- Such contact arrangements are for example in used electrical devices in which contact mats for Contacting can be used.
- a contact mat which has a plurality of bellows, each consisting of one Contact plunger and a flange protruding from it resiliently deformable material.
- a contact area of the contact plunger bridges when the bellows are pressed down two contact points arranged on a printed circuit board.
- the disadvantage here is that the bellows in the contact mat are integrated. Therefore, when assembling the arrangement first attached the contact mat to the circuit board and the circuit board with the contact mat attached to it the electrical device in question is used. Subsequently must then be operated from the outside, on the bellows acting keys can be arranged in a device wall. The entire arrangement requires a very high assembly effort and complicated assembly techniques and is especially then very uneconomical if there are only a few buttons on the device are needed.
- the inventive contact arrangement with the characterizing features of claim 1 is the Assembly effort of the contact arrangement greatly reduced.
- the bellows is initially advantageous in a simple manner fixed a support part so that bellows and support part form a prefabricated unit that is simple and is inexpensive to manufacture and can be used flexibly.
- a separate button for actuating the bellows is not required because a contact plunger opposite Section of the bellows also the function of the button takes over.
- the prefabricated unit can simply be in one intended recess, which in one of the PCB opposite device wall is provided inserted and fastened in it.
- Particularly advantageous is that the contact arrangement according to the invention before or after the installation and assembly of the other device components can be attached to the device housing.
- the bellows in can be easily pre-assembled on the carrier part.
- the flange made of a soft elastic material the bellows is simply a radial projecting edge of the support part and is thereby on the carrier part.
- a radially protruding Section of the flange collar that surrounds the edge of the carrier part is clamped between the carrier part and the housing wall and thereby the carrier part when the latching means snap into place can be fastened to the housing wall under pretension.
- a guide for the contact plunger provide in which the contact plunger is axially movable is stored.
- contact plunger Hubbalgs with its guided section with is provided with a sliding sleeve which ensures reliable sliding in leadership.
- FIG. 1 shows a cross section through a Partial view of an electrical device with the contact arrangement according to the invention.
- Fig. 1 shows an electrical device that, for example, the local base station of a cordless telephone.
- a contact device which, for example, the emission of a triggers acoustic signal tones through the cordless telephone and thereby making it possible to find it again.
- the Housing 22 of the base station shown in FIG. 1 is a Injection molded housing.
- the electrical and mechanical Components of the housing are in the direction of arrow a used in Fig. 1 in the device. This direction is right the demolding direction of the injection molded part.
- One of the Housing wall 9 of the housing 22 from actuatable Contact device must be in one of the demoulding direction of the Injection molded part deviating direction in the housing be used.
- the housing wall 9 a circular recess 6 is provided in which one on Carrier part 3 mounted bellows 1 can be used, wherein The bellows and carrier part form a preassembled unit.
- the bellows 1 has one Contact plunger 4 and a flange projecting laterally from it 5 made of soft elastic material.
- contact plunger 4 and flange 4 in one piece elastically deformable silicone. But others too Materials can be used.
- the contact plunger 4 has essentially the shape of a cylinder, on one of which End a circular contact surface 8 from an electrical conductive material is arranged.
- the contact surface 8 can produced for example by printing on the contact plunger be.
- the other end of the contact plunger 4, which is the Contact surface 8 is opposite, with that of Provide contact plunger projecting flange 5.
- the flange 5 has an annular structure, in the middle of one the key surface 25 opposite the contact surface 8 is trained.
- the wall thickness of the elastically deformable Flange 5 is dimensioned so that the bellows 1 a has predetermined force-displacement characteristics. whereby a tactile feedback can be achieved.
- a Carrier part 3 made of plastic for the bellows 1 intended.
- the carrier part 3 has a disk-like Base body with an upper side 11 and a lower side 12 on. There is an opening 10 in the middle of the base body provided by a protruding from the bottom 12, frustoconical wall 13 and an adjoining cylindrical wall 14 is limited.
- the carrier part 3 has the shape of an opening 10 extending funnel.
- the bottom 12 of the Carrier part 1 is with several vertically projecting from it Provided locking hook 20.
- the side edge of the disc-like base body of the carrier part 3 with a circular, circumferential, rib-like projection 16 Mistake.
- the flange 5 of the bellows 1 is at its from the Contact plunger 4 protruding edge with a collar 15 provided which protrudes in the direction of the contact plunger 4.
- the one in the cylindrical wall 14 guided section of the contact plunger 4 is also with a hollow cylindrical sliding sleeve 18 made of plastic Mistake.
- the contact plunger 4 moves axially in the guide 14 Direction and passes through the opening 10.
- the bellows 1 with the contact sleeve 18 can e.g. in one piece Cold pressed or manufactured by injection molding technology become.
- the prefabricated unit is in the direction of arrow b in the recess 6 of the housing wall 9 is used.
- the inside edge the recess 6 has an annular step 24 provided, the inner edge 19 of the diameter of the recess 6 limited.
- the carrier part 3 is with the underside 12 facing away from the flange 5 onto the Ring surface of the gradation 24 placed, the section 17 of the flange collar 15 directly on the top of the Ring surface comes to the plant.
- the springy snap hooks 20 slide along the edge 19 of the recess 6.
Landscapes
- Push-Button Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
Description
Claims (7)
- Kontaktanordnung für ein elektrisches Gerät mit wenigstens einem an dem Gerät festlegbaren Hubbalg (1), welcher einen Kontaktstößel (4) und einen von dem Kontaktstößel abstehenden Flansch (5) aus weichelastischen Material umfaßt, wobei eine Kontaktfläche (8) des Kontaktstößels (4) im niedergedrückten Zustand des Hubbalgs (1) mit paarweise angeordneten Kontaktstellen (7) einer in dem Gerätegehäuse (22) angeordneten Leiterplatte (2) kontaktierbar ist, dadurch gekennzeichnet, daß der wenigstens eine Hubbalg (1) mit dem von dem Kontaktstößel (4) abstehenden Flansch (5) an einem Trägerteil (3) festgelegt ist, das mit dem Hubbalg eine vormontierte Baueinheit bildet, wobei der Kontaktstößel (4) des Hubbalgs (1) eine in dem Trägerteil (3) vorgesehene Öffnung (10) durchgreift, und daß das Trägerteil (3) mit seiner von dem Flansch (5) abgewandten Seite (12) in eine Ausnehmung (6), welche in einer der Leiterplatte (2) gegenüberliegenden Gehäusewand (9) des Gerätes vorgesehen ist, einsetzbar und darin befestigbar ist.
- Kontaktanordnung nach Anspruch 1, dadurch gekennzeichnet, daß an dem radialen Ende des Flansches (5) ein von dem Flansch abstehender umlaufender Kragen (15) angeformt ist, der zur Festlegung des Hubbalgs (1) an dem Trägerteil (3) einen radial vorstehenden Rand (16) des Trägerteils umgreift.
- Kontaktanordnung nach Anspruch 1, dadurch gekennzeichnet, daß das Trägerteil (3) mit Rastmitteln (20) an der die Ausnehmung (6) aufweisenden Gehäusewand (9) befestigbar ist.
- Kontaktanordnung nach Anspruch 2 und 3, dadurch gekennzeichnet, daß bei der Festlegung des Trägerteils (3) an der Gehäusewand (9) ein den radial vorstehenden Rand (16) des Trägerteils hinterfassender Abschnitt (17) des Kragens (15) zwischen Trägerteil (3) und Gehäusewand (9) zusammengedrückt wird und dadurch beim Einrasten der Rastmittel (20) das Trägerteil unter Vorspannung an der Gehäusewand (9) befestigbar ist.
- Kontaktanordnung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die Rastmittel (20) als elastisch verformbare Rasthaken ausgebildet sind, welche von der von dem Flansch (5) abgewandten Seite (12) des Trägerteils (3) zur Leiterplatte (2) hin abstehen und bei der Befestigung des Trägerteils (3) an der Gehäusewand (9) den Rand (19) der Ausnehmung (6) hinterfassen.
- Kontaktanordnung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß an der von dem Flansch (5) abgewandte Seite (12) des Trägerteils (1) eine Führung (14) für den Kontaktstößel (4) vorgesehen ist, in welcher der Kontaktstößel axial beweglich gelagert ist.
- Kontaktanordnung nach Anspruch 6, dadurch gekennzeichnet, daß der Kontaktstößel (4) an seinem an der Führung (14) anliegenden Abschnitt mit einer Gleithülse (18) versehen ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997147044 DE19747044A1 (de) | 1997-10-24 | 1997-10-24 | Kontaktanordnung für ein elektrisches Gerät |
DE19747044 | 1997-10-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0911844A2 true EP0911844A2 (de) | 1999-04-28 |
EP0911844A3 EP0911844A3 (de) | 2000-04-19 |
Family
ID=7846524
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98118526A Withdrawn EP0911844A3 (de) | 1997-10-24 | 1998-09-30 | Kontaktanordnung für ein elektrisches Gerät |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0911844A3 (de) |
DE (1) | DE19747044A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017184107A1 (en) * | 2016-04-18 | 2017-10-26 | Gyrus Acmi Inc., D.B.A. Olympus Surgical Technologies America | Electronic switch mechanism |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1049465B (de) * | 1959-01-29 | Siemens - Schuckertwerke Aktiengesellschaft, Berlin und Erlangen | Abdichtung von in einer Wanddurchbrechung angebrachten Betatigungsdruckknopf en | |
DE1059072B (de) * | 1954-01-11 | 1959-06-11 | Siemens Ag | Abdichtung von in einer Wanddurchbrechung angebrachten Betaetigungsdruckknoepfen |
DE7443127U (de) * | 1974-12-24 | 1975-08-28 | Ackermann A | FuBbodentaster |
DE9214793U1 (de) * | 1992-10-31 | 1992-12-24 | Telenorma GmbH, 6000 Frankfurt | Kontaktmatte für Tasten und Tastaturen |
-
1997
- 1997-10-24 DE DE1997147044 patent/DE19747044A1/de not_active Withdrawn
-
1998
- 1998-09-30 EP EP98118526A patent/EP0911844A3/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1049465B (de) * | 1959-01-29 | Siemens - Schuckertwerke Aktiengesellschaft, Berlin und Erlangen | Abdichtung von in einer Wanddurchbrechung angebrachten Betatigungsdruckknopf en | |
DE1059072B (de) * | 1954-01-11 | 1959-06-11 | Siemens Ag | Abdichtung von in einer Wanddurchbrechung angebrachten Betaetigungsdruckknoepfen |
DE7443127U (de) * | 1974-12-24 | 1975-08-28 | Ackermann A | FuBbodentaster |
DE9214793U1 (de) * | 1992-10-31 | 1992-12-24 | Telenorma GmbH, 6000 Frankfurt | Kontaktmatte für Tasten und Tastaturen |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017184107A1 (en) * | 2016-04-18 | 2017-10-26 | Gyrus Acmi Inc., D.B.A. Olympus Surgical Technologies America | Electronic switch mechanism |
CN109074981A (zh) * | 2016-04-18 | 2018-12-21 | 捷锐士阿希迈公司(以奥林巴斯美国外科技术名义) | 电子开关机构 |
CN109074981B (zh) * | 2016-04-18 | 2020-07-24 | 捷锐士阿希迈公司(以奥林巴斯美国外科技术名义) | 电子开关机构 |
US11195676B2 (en) | 2016-04-18 | 2021-12-07 | Gyrus Acmi, Inc. | Electronic switch mechanism |
Also Published As
Publication number | Publication date |
---|---|
EP0911844A3 (de) | 2000-04-19 |
DE19747044A1 (de) | 1999-04-29 |
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