EP0984473B1 - Elektrischer Drehschalter - Google Patents

Elektrischer Drehschalter Download PDF

Info

Publication number
EP0984473B1
EP0984473B1 EP99113197A EP99113197A EP0984473B1 EP 0984473 B1 EP0984473 B1 EP 0984473B1 EP 99113197 A EP99113197 A EP 99113197A EP 99113197 A EP99113197 A EP 99113197A EP 0984473 B1 EP0984473 B1 EP 0984473B1
Authority
EP
European Patent Office
Prior art keywords
contact
balls
rotary switch
switch
actuating button
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.)
Expired - Lifetime
Application number
EP99113197A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0984473A1 (de
Inventor
Karl-Heinz Bauer
Ulrich Brüggemann
Joachim Storath
Walter Voll
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.)
Preh GmbH
Original Assignee
Preh 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 Preh GmbH filed Critical Preh GmbH
Publication of EP0984473A1 publication Critical patent/EP0984473A1/de
Application granted granted Critical
Publication of EP0984473B1 publication Critical patent/EP0984473B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/10—Movable parts; Contacts mounted thereon
    • 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
    • H01H1/16—Contacts characterised by the manner in which co-operating contacts engage by abutting by rolling; by wrapping; Roller or ball contacts

Definitions

  • the invention relates to an electrical rotary switch for several switching positions the preamble of claim 1.
  • Such a rotary switch is the subject of the previously published DE, for example 197 20 544 and there has all-round contacts arranged in the base body.
  • This rotary switch is already a compact version with a sensitive Adjustment with a sufficiently large adjustment path of the operating button in front of it based that a ball or roller on which an object rolls, with half The speed of the object rolls or only half its way. hereby is a reduction in the described version of the rotary switch Actuation adjustment of the actuation button on the adjustment of the balls or on the Adjustment of the cage guiding the balls is achieved without e.g. gear transmission are needed. Because with a ball there is only point contact with its base the currents flowing over the sphere are limited. There is therefore a need for given sensitive adjustment to switch higher currents, especially in the last switching position of a tap changer.
  • the object of the invention is to create a generic one Design the rotary switch so that a sensitive adjustment and an increase in Switching currents can be achieved.
  • Fig. 1 shows a cross section of an electrical rotary switch 1 with one in one Housing 2 mounted actuation button 3, its maximum actuation angle is greater than a maximum contact position angle 4, as follows based on FIG. 2 is explained in more detail.
  • the actuating button 3 is mounted on three balls 5, 6, 7 which Rolled by a cage washer 8 in a housing groove 9, which is supported by a radial wall 10 and an axial wall 11 is formed, against which the balls 5, 6, 7 under the contact force an inner cone tread 12 of the operating button 3 are loaded.
  • the radial and axial wall running surfaces 10, 11 have contact segments and contact tracks 13, 14 on that of one of the balls 5, 6, 7, here the ball 5, in predetermined Switch positions are short-circuited.
  • the balls 5, 6, 7 consist of a very good conductive material and can be coated with a precious metal. It is therefore not necessary previously used contact bridges, grinders, etc., so that an extraordinary There is a discount.
  • a bilateral Contact is made by balls 5, 6, 7 existing on both sides of the contact segments 13, Contact tracks 14 and a further inner cone tread 12, these Inner cone tread 12 on a closing ring placed on the actuating button 3 15 exists, which is in the installed state under tension on a collar 16 of the Actuating button 3 supports.
  • the actuating button 3 has a stop, not shown, the Actuation adjustment angle is limited by housing stops, not shown.
  • This Stop approach contacts during the actuation adjustment with at least one of two stop approaches, not shown, of the cage washer 8, the arrangement of which is below occurs at an angle which is approximately half the maximum actuation adjustment angle or corresponds to the maximum contact position angle 4, which is shown in FIG. 2.
  • Fig. 2 shows a view of the open rotary switch 1, in which the balls 5, 6, 7 are shown within guide recesses 18 of the cage disc 8, and the maximum contact position angle 4, which corresponds approximately to half the maximum actuation angle at which the stop approaches the Cage disc 8 are arranged.
  • the maximum contact position angle 4 is divided into the three switch positions provided here, which are represented by dashed circles which correspond to the switch positions of the ball 5.
  • the contact segment 19 of the last switching position Switch positions of the two balls 6, 7 has corresponding locking, which by Recesses 24 of the contact segment 19 is formed, into which the balls 6, 7 snap, as in FIG 3 and 4, which is a section through the housing groove 9 shown as a settlement show, is shown, the other contact segments 13 the switching positions of a ball 5 may have corresponding depressions 25, and also that the Inner cone treads 12 of the actuating button 3 and possibly the end ring 15 of the Locking have corresponding recesses 26 into which the balls 5, 6, 7 snap.
  • Fig. 3 shows the balls 5, 6, 7 in the positions they are in the zero (O) switch position occupy, then the contact tracks 20, 21 not with the contact segment 19th are short-circuited, and Fig. 4 in the positions that they in the end (3) switch position occupy, then the contact tracks 20, 21 with the contact segment 19 via the Balls 6, 7 are short-circuited.
  • connection lugs 17 led out of the housing 2 enable the electrical Connection of the contact track 14 to the positive pole of a voltage source.
  • About the Terminal lugs 17 of the contact segments 13 can be connected to the consumer be, in particular the last switch position of a high current load has grown because in addition to the contact made via ball 5 between Contact segment and contact track 13 and 14 two further contacts between the Contact segment and the contact tracks 19 and 20, 21 exist.
  • the invention is not limited to the embodiments shown, there can be several Balls and multiple contact tracks are provided without affecting the area of the Invention as defined by the claims is left.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Contacts (AREA)
EP99113197A 1998-08-28 1999-07-08 Elektrischer Drehschalter Expired - Lifetime EP0984473B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19839187 1998-08-28
DE19839187A DE19839187C2 (de) 1998-08-28 1998-08-28 Elektrischer Drehschalter

Publications (2)

Publication Number Publication Date
EP0984473A1 EP0984473A1 (de) 2000-03-08
EP0984473B1 true EP0984473B1 (de) 2003-04-02

Family

ID=7879028

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99113197A Expired - Lifetime EP0984473B1 (de) 1998-08-28 1999-07-08 Elektrischer Drehschalter

Country Status (5)

Country Link
US (1) US6180901B1 (ja)
EP (1) EP0984473B1 (ja)
JP (1) JP2000076949A (ja)
DE (2) DE19839187C2 (ja)
ES (1) ES2193628T3 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005004456B4 (de) * 2005-02-01 2010-07-15 Perma-Tec Gmbh & Co. Kg Schmierstoffspender
US8282398B2 (en) 2010-04-30 2012-10-09 Digital Imaging Systems Gmbh Energy transfer via rolling elements of rolling-element bearings
KR101623795B1 (ko) * 2014-10-07 2016-06-07 엘지전자 주식회사 조리기기

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3534194A (en) * 1968-03-06 1970-10-13 Jack B Speller Low noise electrical contact apparatus
DE1921801A1 (de) * 1969-04-29 1970-11-12 Sel Kontakt Bauelemente Gmbh Drehschalter,insbesondere fuer Mehrfachschaltungen
FR2264379B1 (ja) * 1974-03-11 1976-12-10 Peugeot & Renault
DE8211566U1 (de) * 1982-04-22 1982-08-26 Kautt & Bux Kg, 7000 Stuttgart Drehschalter
US4742187A (en) * 1987-04-29 1988-05-03 Carlingswitch, Inc. Rotary switch with common contact
US5204502A (en) * 1991-10-28 1993-04-20 Delco Electronics Corporation Dual function switching apparatus
US5227595A (en) * 1992-05-20 1993-07-13 Carlingswitch, Inc. Rotary switch with common contact terminal
DE19720544C1 (de) * 1997-05-16 1998-04-30 Preh Elektro Feinmechanik Elektrischer Drehschalter

Also Published As

Publication number Publication date
EP0984473A1 (de) 2000-03-08
DE19839187A1 (de) 2000-03-09
US6180901B1 (en) 2001-01-30
JP2000076949A (ja) 2000-03-14
DE19839187C2 (de) 2002-07-11
DE59904816D1 (de) 2003-05-08
ES2193628T3 (es) 2003-11-01

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