EP1160814A2 - Elektrische Schalteinrichtung - Google Patents
Elektrische Schalteinrichtung Download PDFInfo
- Publication number
- EP1160814A2 EP1160814A2 EP01107669A EP01107669A EP1160814A2 EP 1160814 A2 EP1160814 A2 EP 1160814A2 EP 01107669 A EP01107669 A EP 01107669A EP 01107669 A EP01107669 A EP 01107669A EP 1160814 A2 EP1160814 A2 EP 1160814A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- switching
- circuit board
- bridge
- mat
- 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.)
- Granted
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
- H01H13/70—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
- H01H13/78—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 the contacts or the contact sites
- H01H13/785—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 the contacts or the contact sites characterised by the material of the contacts, e.g. conductive polymers
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2201/00—Contacts
- H01H2201/022—Material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2205/00—Movable contacts
- H01H2205/002—Movable contacts fixed to operating part
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2221/00—Actuators
- H01H2221/002—Actuators integral with membrane
Definitions
- the invention relates to an electrical switching device, which is an elastic on a printed circuit board Safety mat with at least one hat-like, from the Printed circuit board lifted off at its inner end face an electrically conductive, when pressure on the switching area against conductor tracks of the circuit board has a movable switching bridge.
- Switching devices of the above type are for Controls of various types used and are well known and common.
- the switching bridge is usually done with a carbon coating generated, which is printed on the safety mat.
- Safety mats with switching bridges made of carbon have one Contact resistance of the order of 150 - 500 ⁇ , which is too high for some applications. If if you want to reduce this contact resistance, then you could think of using the carbon jumper with to use embedded metal particles, but this too undesirable fluctuations in contact resistance would lead.
- a conventional push button switch with an elastic switch mat with a metal jumper then would increase the manufacturing cost of the switching device increase significantly. The shift feel would continue change significantly, especially not then It is acceptable if there are several switches on one control panel are provided, all of which have the same shift feeling should have, and which not for cost reasons all may be elaborately designed.
- the invention is based on the problem of an electrical Switching device of the type mentioned above train that at the lowest possible cost precisely defined, low contact resistance results and compared to conventional switching devices with elastic Safety mat does not produce a shift feeling.
- Such a switching device is comparatively inexpensive producible as usual switching devices with a switch mat and a printed switch bridge made of carbon.
- the switching device according to the invention has however a much lower contact resistance in on the order of ⁇ 20 ⁇ . Furthermore, this is Contact resistance very evenly, so that at a series of switching devices always an exact same contact resistance results.
- the switch mat in the electrical switching device consists of rubber
- the switching bridge by Vulcanizing is connected to the safety mat.
- FIG. 1 shows a circuit board 1 with two conductor tracks 2, 3.
- an elastic Switch mat 4 on one of the circuit board 1 leading, hat-like switching area 5 has. This one has inside directed towards the circuit board 1 Stamp 6 with an end face 7, on the as a contact bridge 8 a metal plate attached by vulcanization is.
- a button 9 can be seen above the switching mat 4 a light box 10. If you press this button 9, the light box 10 then comes against the switching region 5 and thereby pushes the switching bridge 8 on the two Conductor tracks 2, 3, making them electrically interconnected get connected.
- Figure 2 shows that the switching mat 4 side by side can have several individual pushbutton switches 11, 12.
- the single button switch 11 has a switching bridge 8 in turn Metal plate, while the single key switch 12 one Carbon printing 13 as a switching bridge, so that the latter has a higher contact resistance.
Landscapes
- Push-Button Switches (AREA)
Abstract
Description
- Fig.1
- einen Schnitt durch eine Schalteinrichtung nach der Erfindung mit Betätigungsteil,
- Fig.2
- einen Schnitt durch eine zweite Schalteinrichtung.
Claims (3)
- Elektrische Schalteinrichtung, welche auf einer Leiterplatte eine elastische Schaltmatte mit zumindest einem hutartigen, von der Leiterplatte abgehobenen Schaltbereich, der an seiner inneren Stirnfläche eine elektrisch leitende, bei Druck auf den Schaltbereich gegen Kontakte der Leiterbahn bewegliche Schaltbrücke hat, dadurch gekennzeichnet, dass die Schaltbrücke (8) durch ein von der inneren Stirnfläche (7) gehaltenes Metallplättchen gebildet ist.
- Elektrische Schalteinrichtung nach Anspruch 1, bei dem die Schaltmatte aus Gummi besteht, dadurch gekennzeichnet, dass die Schaltbrücke (8) durch Vulkanisieren mit der Schaltmatte (4) verbunden ist.
- Elektrische Schalteinrichtung nach den Ansprüchen 1 oder 2, dadurch gekennzeichnet, dass sie mehrere Einzeltastschalter (11, 12) hat und diese Einzeltastschalter (11, 12) Schaltbrücken (8) aus bezüglich ihres elektrischen Widerstandes unterschiedlichen Materialien aufweisen.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2000126352 DE10026352A1 (de) | 2000-05-27 | 2000-05-27 | Elektrische Schalteinrichtung |
| DE10026352 | 2000-05-27 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1160814A2 true EP1160814A2 (de) | 2001-12-05 |
| EP1160814A3 EP1160814A3 (de) | 2004-11-17 |
| EP1160814B1 EP1160814B1 (de) | 2007-11-28 |
Family
ID=7643805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20010107669 Expired - Lifetime EP1160814B1 (de) | 2000-05-27 | 2001-03-28 | Elektrische Schalteinrichtung |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1160814B1 (de) |
| DE (2) | DE10026352A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005014934B3 (de) * | 2005-04-01 | 2006-10-19 | Diehl Ako Stiftung & Co. Kg | Elektrischer Schalter |
| DE102009021313B3 (de) * | 2009-05-14 | 2010-10-07 | Schurter Gmbh | Elektrischer Taster |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2054268B (en) * | 1979-07-19 | 1984-01-18 | Standard Telephones Cables Ltd | Double-domed conductive disc |
| DE3032557C2 (de) * | 1980-08-29 | 1985-02-07 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Gummielastisches Tastkontaktelement |
| GB2086804B (en) * | 1980-11-04 | 1984-08-22 | Standard Telephones Cables Ltd | Keyblock assembly |
| JPS5987720A (ja) * | 1982-11-11 | 1984-05-21 | シャープ株式会社 | 押ボタンスイツチ |
| EP0162037B1 (de) * | 1984-03-21 | 1989-04-26 | Franz Sterner | Verfahren zum Herstellen von Spritzgussteilen und Spritzgussform zur Durchführung des Verfahrens |
| JPS6396823A (ja) * | 1986-10-13 | 1988-04-27 | 藤倉ゴム工業株式会社 | ゴム接点の製造方法 |
| JPS6396832A (ja) * | 1986-10-14 | 1988-04-27 | 東芝エンジニアリング株式会社 | レベルスイツチ |
| DE3714316A1 (de) * | 1987-04-29 | 1988-11-10 | Siemens Ag | Kontaktmatte fuer tasten und tastaturen |
-
2000
- 2000-05-27 DE DE2000126352 patent/DE10026352A1/de not_active Withdrawn
-
2001
- 2001-03-28 EP EP20010107669 patent/EP1160814B1/de not_active Expired - Lifetime
- 2001-03-28 DE DE50113309T patent/DE50113309D1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1160814B1 (de) | 2007-11-28 |
| DE50113309D1 (de) | 2008-01-10 |
| DE10026352A1 (de) | 2001-11-29 |
| EP1160814A3 (de) | 2004-11-17 |
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