EP0837482A2 - Ressort de contact - Google Patents

Ressort de contact Download PDF

Info

Publication number
EP0837482A2
EP0837482A2 EP97117531A EP97117531A EP0837482A2 EP 0837482 A2 EP0837482 A2 EP 0837482A2 EP 97117531 A EP97117531 A EP 97117531A EP 97117531 A EP97117531 A EP 97117531A EP 0837482 A2 EP0837482 A2 EP 0837482A2
Authority
EP
European Patent Office
Prior art keywords
contact spring
circuit board
leg
spring according
contact
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Withdrawn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
EP97117531A
Other languages
German (de)
English (en)
Other versions
EP0837482A3 (fr
Inventor
Karl Dipl.Ing. Fh Diringer
Rolf Dipl.Ing. Fh Versemann
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.)
S Siedle and Soehne Telefon und Telegrafenwerke OHG
S Siedle and Sohne
Original Assignee
S Siedle and Soehne Telefon und Telegrafenwerke OHG
S Siedle and Sohne
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 S Siedle and Soehne Telefon und Telegrafenwerke OHG, S Siedle and Sohne filed Critical S Siedle and Soehne Telefon und Telegrafenwerke OHG
Publication of EP0837482A2 publication Critical patent/EP0837482A2/fr
Publication of EP0837482A3 publication Critical patent/EP0837482A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
    • H01H1/26—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting with spring blade support
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H2001/145—Contacts characterised by the manner in which co-operating contacts engage by abutting by crossing each other, the cooperating contacts each having a contact making ridge perpendicular to each other
    • 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
    • H01H2001/5811—Connections to printed circuits both fixed and movable contacts being formed by blank stamping and mounted or soldered on printed circuit board without any other housing elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
    • H01H11/06—Fixing of contacts to carrier ; Fixing of contacts to insulating carrier
    • H01H2011/062—Fixing of contacts to carrier ; Fixing of contacts to insulating carrier by inserting only

Definitions

  • the invention relates to a contact spring according to the Preamble of claim 1.
  • the invention has for its object a contact spring to create the simple and cheap to manufacture, mechanically and automatically mountable on the circuit board, small in size and for a long life and both at low and at relatively large currents works reliably.
  • the contact spring is initially made in one piece from one Metal strips shaped. On the two opposite Sections is a raised switching contact upset.
  • the sheet metal strip is V-shaped to a point Angle bent. The one that rises freely Leg down towards the other, fixed, Thighs pressed, the two touch Switch contacts.
  • the second switch contact is a U-shaped one Cutout provided so that this second switch contact only over two connecting bridges with the end area of the second Leg is connected to which the three connecting legs connect.
  • the two bridges are cut, for example with a stamp.
  • the actuation of the now functioning as a switch two-part contact spring is made by an over it arranged push button, for example on the top of the corresponding device, such as on the upper part of an in-house telephone for actuating the door opener or the light switch.
  • the connecting bridges are preferably separated by a wedge-shaped cutting tool in which the cutting edge preferably off-center to the length of the connecting bridges is aligned.
  • the connecting bridges are after the Partial separation into openings in the circuit board bent in and thus electrically and mechanically safe Cut. These openings can be under either of the two Connection bridges are provided. The separation takes place completely waste-free. By attaching Predetermined breaking points when punching out the original Sheet metal strips can provide the necessary separation forces be reduced.
  • a flat cutting punch can also be punched out a section from the separator or the Connection bridge can be used. If the material of the PCB is sufficiently firm, it can be used directly as Cutting die act, in the other case, an additional one Cutting die are used.
  • the separation can also be done, for example Laser beam done.
  • the electrical switch contacts can be welded on be welded onto the metal strip.
  • the first The welding point can be cross-shaped to the second welding point to be ordered. But it is also possible that Form switch contacts directly from the spring material or to train otherwise.
  • the connecting legs can be shaped so that they are Pass through the openings inside the PCB in cut the material of the circuit board and thus stuck. This can cause the contact spring to float be prevented during the soldering process.
  • the connecting legs can be resilient on the lower legs of the Contact spring can be connected. This can be a burden the solder joints avoided when actuating the contact spring will.
  • This relative movement becomes the first Contact of the two switching contacts initiated.
  • the switch contacts are positioned one above the other in their position Total height less than twice the bending radius of the Main bend of the contact spring. This height difference and the resulting inclination of the upper leg causes further pressure on the bottom evenly formed button an elastic deformation of the free leg. This causes in the closed state a relative movement between the two switch contacts the effect of self-cleaning the same.
  • Another advantage of this arrangement is that Resetting force of the free leg when actuated almost no lateral force on the button, thereby minimizing the Frictional forces when pressing the push button.
  • the automatic assembly of the contact spring can be done by a Gripping tool done on the geometry of the Contact spring is matched and this for example to the beaded and pre-stressed connecting legs records. This placement technique is already, for example common when populating integrated circuits.
  • the Training of the contact spring provided here thus enables the assembly by a well-known and proven Assembly process.
  • the contact spring essentially consists of one one-piece sheet metal plate designed as a stamped and bent part. It is punched into the specific shape and then bent over. The contact spring is actuated by an assigned button, as described above or the like.
  • the two Switch contacts are made after the, preferably automatic, Attach and then contact the contact spring mechanically and electrically on the circuit board Cut.
  • the electrical device shown in cross section in FIG could, for example, be an apartment intercom. It is generally designated 40, the top 42, the Lower part at 48, the left guideway for the left, not actuated key 50 with 44, the right guideway with 44 ', in which a right button 50 'for operating the Contact spring 10 is rotatably guided downwards.
  • the lower flat actuating surface of the keys 50, 50 ' is 52, 52 '.
  • Figure 2 shows the V-shape at an acute angle to one Contact spring 10 curved metal plates.
  • FIG 5 also shows the circuit board 1 with Through openings 21, 23, 25, 27 for the associated from lower leg 18 bent vertically downwards Legs 20, 22, 24, 26. Furthermore, the Circuit board 1 two larger support openings 31, 33 directly below the connecting bridges 30, 32.
  • Figure 6 shows a perspective view of the Printed circuit board 1 seated contact spring 10, in which the Connecting bridges 30, 32 severed and for safe Partial separation into the support openings 31, 33 are bent into it.
  • Figure 7 shows an enlarged view of the free Leg 16 pressing button 50, the arrow in the direction of the arrow Force F is exerted. Between level lower Operating surface 52 of the key 50 and surface of the free movable upper leg 16 of the contact spring 10 is at At the beginning of the operation, an inclined gap 53 is visible. Of the Bending radius around the middle bending line 13 is with R designated.

Landscapes

  • Push-Button Switches (AREA)
EP97117531A 1996-10-17 1997-10-10 Ressort de contact Withdrawn EP0837482A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19642808 1996-10-17
DE1996142808 DE19642808C1 (de) 1996-10-17 1996-10-17 Verfahren zur Herstellung einer Kontaktanordnung

Publications (2)

Publication Number Publication Date
EP0837482A2 true EP0837482A2 (fr) 1998-04-22
EP0837482A3 EP0837482A3 (fr) 1998-12-09

Family

ID=7808985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97117531A Withdrawn EP0837482A3 (fr) 1996-10-17 1997-10-10 Ressort de contact

Country Status (2)

Country Link
EP (1) EP0837482A3 (fr)
DE (1) DE19642808C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2562866A (en) * 2017-03-29 2018-11-28 Johnson Electric Sa Contact system and relay having the same
US20200319722A1 (en) * 2018-07-12 2020-10-08 Preh Gmbh Input device with movable handle on a capacitive detection surface and capacitive coupling devices

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19834375C1 (de) * 1998-07-30 1999-12-09 Preh Elektro Feinmechanik Leiterplatte
DE19842236A1 (de) * 1998-09-15 2000-03-23 Delphi Automotive Systems Gmbh Elektrische Anschlußvorrichtung
DE10226911B4 (de) * 2002-06-17 2016-06-09 Marquardt Gmbh Sensor für Riemenriß
DE102013000904B4 (de) 2013-01-18 2023-08-24 Kostal Automobil Elektrik Gmbh & Co. Kg Schaltkontaktfeder für einen elektrischen Schalter sowie entsprechender Schalter

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3437772A (en) * 1966-06-06 1969-04-08 Cutler Hammer Inc Contact structure for electrical switching device and method of assembly
GB1308692A (en) * 1970-04-01 1973-02-21 Sumlock Anita Electronics Ltd Electrical switches
DE2638941C2 (de) * 1976-08-28 1978-09-14 Rudolf Schadow Gmbh, 1000 Berlin Tastenaggregat mit nebeneinander angeordneten Schiebetastenschaltern
DE7735679U1 (de) * 1977-11-22 1978-03-30 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Tastschalter
ES8207377A1 (es) * 1980-12-22 1982-09-01 Amp Inc Un dispositivo de interruptor de chapa metalica de una sola pieza
DE3428411A1 (de) * 1984-08-01 1986-02-06 Siemens AG, 1000 Berlin und 8000 München Umschaltekontakt
DE3814903A1 (de) * 1988-05-03 1989-11-16 Lumberg Karl Gmbh & Co Schaltbarer elektrischer verbinder
DE4117851A1 (de) * 1991-05-31 1992-12-03 Vasile Dr Ing Ifrim Kontaktstift mit form- und kraftschluessiger mehrpunktauflage der einpresszone
DE19510491A1 (de) * 1995-03-27 1996-10-02 Baer Elektrowerke Gmbh & Co Kg Elektrischer Schalter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2562866A (en) * 2017-03-29 2018-11-28 Johnson Electric Sa Contact system and relay having the same
US20200319722A1 (en) * 2018-07-12 2020-10-08 Preh Gmbh Input device with movable handle on a capacitive detection surface and capacitive coupling devices
US11650675B2 (en) * 2018-07-12 2023-05-16 Preh Gmbh Input device with movable handle on a capacitive detection surface and capacitive coupling devices

Also Published As

Publication number Publication date
EP0837482A3 (fr) 1998-12-09
DE19642808C1 (de) 1998-04-23

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