EP0196622A2 - Potentiomètre rotatif et à curseur (interrupteur à prises) - Google Patents

Potentiomètre rotatif et à curseur (interrupteur à prises) Download PDF

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Publication number
EP0196622A2
EP0196622A2 EP86104184A EP86104184A EP0196622A2 EP 0196622 A2 EP0196622 A2 EP 0196622A2 EP 86104184 A EP86104184 A EP 86104184A EP 86104184 A EP86104184 A EP 86104184A EP 0196622 A2 EP0196622 A2 EP 0196622A2
Authority
EP
European Patent Office
Prior art keywords
circuit board
rotary
grinder
contact
printed circuit
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
Application number
EP86104184A
Other languages
German (de)
English (en)
Other versions
EP0196622A3 (en
EP0196622B1 (fr
Inventor
Fritz Ing. Grad. Prestel
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.)
Bsg-Schalttechnik & Co KG GmbH
Original Assignee
Bsg-Schalttechnik & Co KG 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 Bsg-Schalttechnik & Co KG GmbH filed Critical Bsg-Schalttechnik & Co KG GmbH
Priority to AT86104184T priority Critical patent/ATE83870T1/de
Publication of EP0196622A2 publication Critical patent/EP0196622A2/fr
Publication of EP0196622A3 publication Critical patent/EP0196622A3/de
Application granted granted Critical
Publication of EP0196622B1 publication Critical patent/EP0196622B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/12Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/40Contact mounted so that its contact-making surface is flush with adjoining insulation
    • H01H1/403Contacts forming part of a printed circuit
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C10/00Adjustable resistors
    • H01C10/06Adjustable resistors adjustable by short-circuiting different amounts of the resistive element
    • H01C10/08Adjustable resistors adjustable by short-circuiting different amounts of the resistive element with intervening conducting structure between the resistive element and the short-circuiting means, e.g. taps

Definitions

  • the invention is based on a rotary or slide potentiometer (acting as a tap changer) according to the preamble of the main claim and a method for its production according to the preamble of the first method claim.
  • actuators are usually potentiometers, designed as rotary or slide potentiometers, although very often there are still some latching options that can also be felt when adjusting or rotating the actuating means, so that the setting is carried out in stages, which is not only for most applications sufficiently precise, but is also preferred because this gives the user a clearer statement about the respective operating state - for example, in the case of an iron, a first or lower temperature level for sensitive tissue, a medium temperature level and a full load level, for example.
  • the invention is therefore based on the object of providing a rotary or slide potentiometer which can be used without problems for the purposes described, as a step switch, which is produced using inexpensive means and is easy to assemble and use, and is considerably more accurate than non-calibrated potentiometers with mechanical detent for example.
  • the invention solves this problem with the characterizing features of the main claim or the first method claim and has the advantage of a particularly simple and inexpensive construction, with the simple and quick arrangement of the counter contacts to the grinder being particularly cost-effective, together with the simplest assembly and excellent contact, also on a long-term basis, whereby the set values to be reproduced are also reproduced with basically any desired value Accuracy can be determined by simply fitting resistors with the appropriate, but then also narrow tolerances.
  • the invention is based on the finding that, when detached from the actual potentiometer principle, the tasks are separated while the adjusting movement for the desired speeds, temperatures and the like is still continuous. It is possible to achieve constant electrical setting values for predetermined areas, which can be identified by mechanical locking or at least marking, over a predetermined range of variations to the right and left for marking or screening, precisely because in this twisting or Adjustment range only the predetermined electrical value is to be achieved and therefore only a certain desired manipulated variable needs to be controlled.
  • the electrical effect is that of a step switch, since contacts which are insulated from one another in each case (in electrical understanding ) are brought into operative connection with a counter contact.
  • the switch movement takes place overall continuously, so that the invention can be described with the same authorization as a rotary or slide potentiometer.
  • a particular advantage in the manufacture of the potentiometer according to the invention is that the counter-contacts to the grinder, which it touches during its (continuous) passage, consist of wire bridges with which the circuit board on which the switch with its essential elements is mounted directly , is loaded.
  • the contact assembly is done in such a way that, and this constitutes an essential inventive moment, the contacts are in the form of longitudinal contacts in wire form, for example made of electrolytic copper or some other common good contact material, the assembly taking place automatically; a well-known pick and place machine pulls out predetermined conductor track pieces from a wire winding and equips the printed circuit board with such a wire length in the same way as if it installs a resistor on the printed circuit board from the assembly side in predetermined receiving openings of the printed circuit board.
  • the counter contacts to the grinder of the rotary or slide potentiometer according to the invention are longitudinal contacts in the form of wires, the bent ends of which are automatically inserted and bent into two openings in the printed circuit board by the assembly machine, the fixing of these wire bridges on the conductor track side in the usual way This is done in the same way and at the same time as all other electrical connections to this circuit board, usually by dip soldering and the like.
  • the wire bridges are applied directly to the component side of the circuit board and fixed by soldering on the other side, so that the Printed circuit board carrier and bearing or housing for the longitudinal contacts, while the actuating element of the rotary or slide switch or rotary or slide potentiometer thus formed, which also carries the slider and the collector track, can be attached to the printed circuit board in any way, preferably by, as in the case of a rotary potentiometer, for example, passing a central axis of the rotary actuator, which the user engages, through an opening in the printed circuit board and, on the opposite side, being latched with noses or otherwise held in place by spring-loaded locking pins.
  • the simultaneous formation of the rotary or slide potentiometer is particularly advantageous for effecting momentary circuits, that is to say for supplementary or sole further contact only by touch, that is to say briefly and only as long as the element is actuated.
  • the actuating element is made of, for example, telescopically sliding parts, and when depressed a nose arranged on the movable part places a contact element of the grinder on one of the longitudinal contact wire bridges.
  • the basic idea of the present invention is, in the case of a circuit element electrically effecting a step-by-step contact, on the one hand to provide a continuously operated grinder with an associated continuously contacted collector return line, and on the other hand to design the counter-elements touched by the grinder as wire bridges directly populating the circuit board.
  • the printed circuit board or printed circuit board is denoted by 1, its conductor track side by 2a and its component side by 2b.
  • the embodiment of the invention shown in Fig. 1 is a rotary potentiometer or rotatable step resistor with push button switch, it being understood that the invention is not limited to this, but can include any type of control potentiometer or step switch; Correspondingly required modifications based on the features according to the invention are possible for a person skilled in the art.
  • the circuit board 1 is the carrier plate for any electronic parts, resistors, integrated circuit modules and the like, not shown in the drawing. Like. And it also serves, namely by the Cu conductor tracks arranged on the conductor track side to link these electronic parts and the switching stages implemented by the invention.
  • the exemplary embodiment according to the invention is described as a rotary potentiometer and designated as such, with the proviso that the switching or contacting takes place in stages and with the understanding that this designation, from a different point of view, also a rotary or slide tap changer as a replacement for includes such potentiometers.
  • the actuating element 20 for the rotary potentiometer 21, which the user can directly attack for adjustment is composed of two parts, a lower part 7 in the plane of the drawing with an axis of rotation 7a, which part is axially fixed but rotatable in an opening or opening in the printed circuit board 1, and an upper part Part 9, which in addition to the circuit board has an axial possibility of movement in that it can be pressed telescopically with the possibility of resetting by a bias spring 12 and the lower part 7 in itself in the direction of the circuit board.
  • Both parts 7 and 9 are roughly pot-shaped; the lower part 7 of the actuating element 20 engages with the (one-piece) axis 7a through the bearing opening 22 of the bearing plate 1 and is locked on the opposite side, preferably with the interposition of a locking bush 17, the passage opening of which is engaged by resilient pins 19 each having a nose 19a , so that when the actuating part 20 is pressed onto the printed circuit board, when the axis 7a with its resilient pin 19 has also penetrated the locking bush 17, the whole thing latches onto the printed circuit board; namely resilient, because the locking sleeve 17 has molded, protruding spring elements 18, which prevent axial play after locking and ensure a smooth, trouble-free rotary movement of the actuating element 20.
  • a collector ring 23 is arranged in the area of the passage opening 22 on the printed circuit board 1 separately from the actuating element 20 and the passage opening 22, preferably in a ring-shaped manner
  • Slider track can be referred to and consists of electrically highly conductive material and has an extension 5 which extends radially from the slip ring track 23, initially forms a protuberance 5a, which serves as a stop for the rotary movement of the actuating element 20 and then the circuit board at 5b 1 interspersed for connection to a given conductor track.
  • the lower actuating part 7 rests against the time plate. te 1 pressed the grinder 4 with the shape shown in more detail in Fig. 3a.
  • the grinder 4 is supported on the slip ring track 5 by two preferably integrally formed slide contact tongues 4a, which are prestressed downward in the plane of the drawing, that is to say on the slip ring track, as a result of which the electrical contact to the slip ring track is established, and is on the lower actuating part 7 by two pins 6 locked, pass through the openings 4b of the grinder 4.
  • the grinder 4 is made of a suitable resilient material with good electrical conductivity and has a first grinder finger 4c, with which, as will be explained further below, it causes the contact connections when the actuating element 20 is rotated here. Opposite the grinder finger 4c, but basically to be arranged anywhere, there is another contact tongue 8 which is integral with the grinder 4 and which, as will be explained below, serves to make a momentary contact.
  • the lower actuating part 7 continues upward, as indicated at 7b, approximately in the shape of a sleeve and engages with this sleeve 7b in an annular recess 9a of the actuating upper part 9, with mutual locking lugs 15, 16, so that the parts 7, 8 can be pressed against each other against the pressure of the biasing spring 12, but can no longer be released after the initial locking.
  • ribs 14 can be provided on the lower part 7, in addition to other means, which engage in corresponding recesses 13 in the upper part 9 for driving the same.
  • the bias spring 12 surrounds a central axis 9b of the upper part 9 and is supported on a lower shoulder on the lower part 7.
  • the actuating element 20 can be actuated by the user directly or in that a further rotating piece engages in an upper central receiving slot 24.
  • the counter contacts which are in each case touched by the grinder finger 4c during a rotary movement, generally during a displacement movement of the actuating element, as flat-lying wire pieces in the form of wire bridges 3 arranged on the component side 2b of the printed circuit board 1, on which the grinder finger 4c, which can still have a lower spherical protuberance, rests resiliently for good contact and slides when rotating.
  • the wire bridges 3 can be arranged around the angle of rotation range of the rotary potentiometer 21, either following a square shape, as shown in FIG.
  • the counter contacts for the wiper finger 4c are successive longitudinal contacts, formed by free wire Lengths, which are arranged as wire bridges made of a suitable, highly conductive material, preferably electrolytic copper, on the component side and thus, as shown in FIG. 3b, with their ends through openings of the printed circuit board 1 receiving conventional ends of the resistors, capacitors and other circuit elements led to the conductor track side and bent there.
  • the wiper finger 4c is designed so wide that it briefly detects two of the longitudinal contact wire bridges arranged on the component side with a predetermined distance 3a (see FIG. 2) in the transition between the individual switching stages, i.e. both during the rotary movement Longitudinal contact wire bridges bridged and connected to each other.
  • This can be advantageous electrically;
  • switch isolating by letting the slider slide off one wire bridge before contacting the other, or by interposing wire bridges, for example of shorter construction, which are not connected.
  • Another advantageous exemplary embodiment of the present invention includes the momentary contact which is still possible at the same time as a result of such an embodiment of the actuating element, grinder and mating contacts.
  • This purpose is served by the radially projecting contact tongue 8, which is connected in one piece to the grinder 4 and, in the normal case and without the two parts 7 and 9 being telescoped into one another, has a predetermined distance from a specific or any longitudinal contact wire bridges 3.
  • the nose 10 on the upper part 9 is preferably designed as a spring element which is molded onto the upper actuating part 9; the shape of the spring can best be seen in the illustration in FIG. 2; it is fastened to the upper part 9 via approximately diametrically opposite projections 10a and continues on both sides in an annular manner via the segments 10b, which are free to the upper part 9, up to the actuating nose 10, which is therefore also elastically flexible, the overstroke of the telescoped parts 7, 9 fields and provides the contact force for contacting.
  • the wire bushing longitudinal contacts can also be arranged in a linear extension and can then be contacted in succession by a rectilinearly moved grinder / contact element in the case of a sliding potentiometer or sliding step resistor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Adjustable Resistors (AREA)
  • Switches With Compound Operations (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Control Of Electrical Variables (AREA)
EP86104184A 1985-04-01 1986-03-26 Potentiomètre rotatif et à curseur (interrupteur à prises) Expired - Lifetime EP0196622B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86104184T ATE83870T1 (de) 1985-04-01 1986-03-26 Dreh- und schiebepotentiometer (stufenschalter).

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3511872 1985-04-01
DE19853511872 DE3511872A1 (de) 1985-04-01 1985-04-01 Dreh- oder schiebepotentiometer (stufenschalter) und verfahren zu seiner herstellung

Publications (3)

Publication Number Publication Date
EP0196622A2 true EP0196622A2 (fr) 1986-10-08
EP0196622A3 EP0196622A3 (en) 1989-04-19
EP0196622B1 EP0196622B1 (fr) 1992-12-23

Family

ID=6266993

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86104184A Expired - Lifetime EP0196622B1 (fr) 1985-04-01 1986-03-26 Potentiomètre rotatif et à curseur (interrupteur à prises)

Country Status (4)

Country Link
US (1) US4721939A (fr)
EP (1) EP0196622B1 (fr)
AT (1) ATE83870T1 (fr)
DE (2) DE3511872A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6041868A (en) * 1997-12-10 2000-03-28 Case Corporation Mechanism for controlling implement position

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5363290A (en) * 1990-07-18 1994-11-08 The Toro Company Irrigation controller
JP3466458B2 (ja) * 1998-02-19 2003-11-10 アルプス電気株式会社 回転型電気部品
DE10017511C2 (de) * 2000-04-10 2002-04-04 Sirona Dental Systems Gmbh Variabler Widerstand und damit versehener Spannungsteiler, Leiterplatte und zahnärztliches Gerät
US7116210B2 (en) * 2004-05-05 2006-10-03 Cts Corporation Actuator with integral position sensor
US20070008063A1 (en) * 2004-08-13 2007-01-11 Cts Corporation Rotary actuator with non-contacting position sensor
JP2006310441A (ja) * 2005-04-27 2006-11-09 Matsushita Electric Ind Co Ltd 回転型電子部品
DE102006054539B3 (de) * 2006-11-20 2008-02-14 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zur Erzeugung einer Niederspannungsversorgung einer elektrischen Steuereinrichtung
AU2009282596A1 (en) * 2008-08-19 2010-02-25 Wilson-Cook Medical Inc. Apparatus for removing lymph nodes or anchoring into tissue during a translumenal procedure
CN102326053B (zh) 2009-02-17 2015-02-18 Cts公司 旋转位置传感器
EP2442336A4 (fr) * 2009-06-11 2014-04-16 Sharp Kk Structure destinée à empêcher un bouton codeur de se déloger

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1144808B (de) * 1961-10-07 1963-03-07 Vdo Schindling Drucktastenschalter fuer Platte mit gedruckter Schaltung
US3412363A (en) * 1964-01-02 1968-11-19 Gen Precision Systems Inc Control knob indicator apparatus
DE2121729A1 (de) * 1971-05-03 1972-11-23 Westfälische Metall Industrie KG, Hueck & Co, 4780 Lippstadt Schiebe- oder Drehwiderstand
DE7231112U (de) * 1972-08-23 1973-01-11 Preh Elektrofeinmechanische Werke Schiebewiderstand mit Schalter
DE2343665A1 (de) * 1973-08-30 1975-03-20 Ruf Ohg Wilhelm Veraenderbarer widerstand
DE2609166C3 (de) * 1976-03-05 1979-03-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen Elektrische Einstelleinrichtung
US4082925A (en) * 1976-03-31 1978-04-04 Cts Corporation Rotary switch
US4206334A (en) * 1978-09-21 1980-06-03 Illinois Tool Works Inc. Rotatable electrical contact component with detent
FR2461980B1 (fr) * 1979-07-24 1986-03-21 Sagem Perfectionnements apportes aux claviers d'introduction manuelle de donnees
US4453152A (en) * 1983-01-10 1984-06-05 The Singer Company Sewing machine control
FR2556512B1 (fr) * 1983-12-13 1986-12-26 Itt Composants Instr Dispositif de commutation electrique
US4521761A (en) * 1984-02-17 1985-06-04 Sangamo Weston, Inc. Small outline potentiometer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6041868A (en) * 1997-12-10 2000-03-28 Case Corporation Mechanism for controlling implement position

Also Published As

Publication number Publication date
DE3687318D1 (de) 1993-02-04
DE3511872C2 (fr) 1988-09-29
ATE83870T1 (de) 1993-01-15
US4721939A (en) 1988-01-26
EP0196622A3 (en) 1989-04-19
EP0196622B1 (fr) 1992-12-23
DE3511872A1 (de) 1986-10-02

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