EP0726587A1 - Interrupteur rotatif ayant deux éléments de boîtier, chaque élément étant muni d'un jeu de contacts - Google Patents

Interrupteur rotatif ayant deux éléments de boîtier, chaque élément étant muni d'un jeu de contacts Download PDF

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Publication number
EP0726587A1
EP0726587A1 EP96101450A EP96101450A EP0726587A1 EP 0726587 A1 EP0726587 A1 EP 0726587A1 EP 96101450 A EP96101450 A EP 96101450A EP 96101450 A EP96101450 A EP 96101450A EP 0726587 A1 EP0726587 A1 EP 0726587A1
Authority
EP
European Patent Office
Prior art keywords
housing
contact
switch according
rotary switch
rotary
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
EP96101450A
Other languages
German (de)
English (en)
Other versions
EP0726587B1 (fr
Inventor
Hans Preinfalk
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.)
ITT Automotive Europe GmbH
Continental Teves AG and Co oHG
Original Assignee
ITT Automotive Europe GmbH
Alfred Teves 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 ITT Automotive Europe GmbH, Alfred Teves GmbH filed Critical ITT Automotive Europe GmbH
Publication of EP0726587A1 publication Critical patent/EP0726587A1/fr
Application granted granted Critical
Publication of EP0726587B1 publication Critical patent/EP0726587B1/fr
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
    • H01H25/00—Switches with compound movement of handle or other operating part
    • H01H25/06—Operating part movable both angularly and rectilinearly, the rectilinear movement being along the axis of angular movement
    • 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
    • H01H19/54—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 the operating part having at least five or an unspecified number of operative positions
    • H01H19/60—Angularly-movable actuating part carrying no contacts
    • H01H19/62—Contacts actuated by radial cams
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/042—Snap coupling; Snap mounting

Definitions

  • the invention relates to a rotary switch which is required, for example, for adjusting the lighting of a motor vehicle.
  • the mode of operation of such a rotary switch is also known, for example, from German utility model G 71 14 793.
  • the application is therefore based on an electrical rotary switch of the type resulting from the preamble of claim 1.
  • the object of the invention is to provide an inexpensive switch which is capable of switching a large number of electrical contacts simultaneously and allowing a large number of contact combinations depending on the position of the rotary lever.
  • the invention therefore consists in dividing the housing into at least two housing parts, each of which is provided with its own contact arrangement, the individual contact arrangements being able to be actuated by a common camshaft.
  • a particularly simple assembly of the two housing parts with one another is obtained by using the combination of features according to claim 2.
  • the two housing parts are locked together by engagement means of one housing part engaging locking means of the other housing part. It is possible that the locking means of one housing part each encompass the locking means of the other housing part from the outside.
  • the two housing parts are constructed symmetrically, at least with regard to the latching means, so that the latching means of one housing part act on the outside and once from the inside on the latching means of the other housing part (Fig. 3, Fig. 4).
  • a contact arrangement includes at least one contact fixed to the housing and one movable contact which, depending on its position, creates an electrical connection to the fixed contact.
  • several mutually parallel movable contacts can also be actuated simultaneously or depending on their angular position with the aid of a corresponding number of cams on the camshaft.
  • a connection from a fixed contact to a plurality of fixed contacts can be created as a function of the angle of rotation of the camshaft by means of a single movable contact.
  • a large number of switching combinations are therefore possible with the aid of the switch according to the invention, which can be reproduced by using the contact arrangements arranged in two planes (housing parts).
  • the feature combination according to claim 3 is recommended in a further development of the invention. Thereafter, the camshaft is not only rotatable, but also at least partially displaceable in its longitudinal direction. As a result, the cams are assigned to different movable contacts, which enables further contact combinations.
  • a preferred embodiment according to claim 4 is thus obtained, in which a cam sleeve provided with a cam is arranged exclusively in a rotatable manner, while this cam sleeve is provided with a rotating shaft which extends into it and which at the same time also has projections which control movable contacts.
  • the rotary shaft is longitudinally displaceable in the switch housing and in particular in the cam sleeve, but is arranged such that it cannot rotate, so that regardless of the longitudinal position of the rotary shaft relative to the cam sleeve, the cam sleeve is carried along by the rotation of the rotary shaft.
  • the position of the projections controlling the associated movable contacts changes due to a longitudinal displacement of the rotary shaft, so that some but not all of the contacts are changed in their electrical state by a longitudinal displacement of the rotary shaft.
  • depressions can also be provided in the rotary shaft instead of projections, which exert a corresponding control effect on the movable contacts.
  • the feature combination according to claim 5 is recommended in a further development of the invention.
  • the projections on the rotary shaft and depending on its longitudinal and angular position in one or more of the housing parts have plungers which are mounted so as to be radially displaceable ( Actuating pins) moved, which thus perform a suitable radial movement as a result of a rotary and / or longitudinal movement of the rotary shaft.
  • the radial movement serves to suitably control the movable contacts with respect to stationary contacts, so that they are controlled, ie opened or opened, depending on the longitudinal and angular position of the rotary shaft. getting closed.
  • the use of the combination of features according to claim 6 is recommended.
  • the invention allows a particularly simple structure of the fixed contact banks by using the combination of features according to claim 7. Thereafter, the fixed contact pieces are at least partially cast with the associated housing part.
  • the contact pieces can be punched out of a single sheet metal to form contact strips running essentially parallel to one another and then partially cast with the associated housing part. This results in a stable and moisture-proof mounting of the fixed contacts in the associated housing part, wherein a great strength of at least the pin connections of the fixed contacts can be achieved by kinking the fixed contacts within the molded section.
  • the fixed ends of the tongues can be firmly anchored within the housing parts by casting.
  • the contact tracks of the contact tongues leading to the connecting blades can be constructed in accordance with the stationary contact pieces.
  • a connection between the contact tracks and the contact tongues which is listed according to the features according to claim 9, is recommended. It is particularly advantageous if the contact tongues are connected in one piece to the associated contact tracks, that is to say they are punched out together from a contact plate.
  • This latching space thus has a plurality of mutually parallel, essentially ring-shaped latching contours which specify the longitudinal position of the rotary shaft.
  • this essentially circular contour recesses or projections are then provided in such a way that certain preferred angular positions result for the latching means of the rotating shaft, into which the rotating shaft engages during the turning process.
  • the two housing halves can be connected to one another by latching. In many cases, however, it will be advisable to provide an additional housing shell, enclosing the two housing parts, according to the combination of features according to claim 11. This is particularly recommended if the two housing halves are constructed essentially symmetrically to one another, so that they can be displaced in the tangential direction in spite of the radially engaging locking means acting against one another and can also be joined together in this direction. In this case, the housing sleeve secures against tangential movement of the two housing parts against each other.
  • the housing sleeve itself can be constructed from a plurality of sections which are locked together and which have a division plane running transversely to the longitudinal axis of the camshaft.
  • the choice of these housing sections depends on the intended use of the switch and thus on the accessories installed in the switch or on the environment in which it is installed. As such, it is possible to manufacture the actuation button in one piece with the rotary shaft.
  • the twist grip should be adapted to the respective switch function and thus be interchangeable in many cases by the installation of light guides, the pouring of symbols, the combination of features according to claim 12 is recommended in a further development of the invention.
  • the twist grip can be used in a simple manner according to the combination of features according to claim 13 be snapped onto the rotary shaft.
  • the switch according to the invention can be constructed in a very space-saving manner due to the two essentially cuboidal housing parts lying parallel to one another. If this is desired, however, the housing can be extended towards the rotary handle, for example in the shape of a circular cylinder.
  • the space created in this way which can be used, for example, to accommodate the above-mentioned rest area, can additionally be used in a further development of the invention for accommodating a printed circuit board in accordance with the combination of features according to claim 14.
  • An essentially annular printed circuit board is thus obtained, which is arranged in a plane lying transversely to the longitudinal axis of the rotary shaft and symmetrically to the longitudinal axis. Suitable components, such as setting potentiometers, lamps, connecting lines, etc. can be found on the circuit board.
  • the filament can be arranged parallel to the longitudinal direction of the rotary shaft.
  • the components protrude towards the operator-side end of the switch and can thus illuminate markings, displays or cast diagrams in order to make the switch easy to operate even in complete darkness.
  • the circuit board is then provided with a clamping socket which is assigned corresponding contact pins which project in the direction of the circuit board.
  • the contact pins can protrude through a partition of one of the two housing parts and can be anchored to it by casting.
  • the contact pins themselves can again be connected to contact tracks which belong to the above-described contact arrangement or the stationary or movable contacts or are arranged identically to these. Then it is possible to simply plug the circuit board from the open end of the switch onto the contact pins via the contact terminals, which are used for power supply and mounting at the same time.
  • the connector pins can be led out according to claim 16, such as the contact pieces or the contact tongues themselves from the associated housing part, so that the circuit board can be supplied with current at the end of the switch facing away from the operator, which via parallel to the contact tracks in the same plane as this running conductor tracks is supplied with electricity.
  • the contact pieces Punch the contact tongues and, if applicable, the conductor tracks and connections belonging to the contact tongues in one piece from a sheet metal and subsequently, for example after casting, to separate the individual tracks from one another with the corresponding housing part.
  • FIG. 1 shows a first housing part 1 and a second housing part 2, which, as can be seen from FIGS. 3 and 4, are locked together via lateral lugs 4, 5.
  • the two latched housing parts form a switch chamber 6, in which two mutually opposite contact arrangements 7, 8 are arranged.
  • Each of the contact arrangements consists at least of a fixed contact piece 9 and a contact tongue 10 which is movable relative to this contact piece.
  • the contact tongue 10 is permanently connected at its fixed end 11 to a connecting piece 12, for example by a rivet 13, by welding, soldering or else by one one-piece transition in which the contact tongue 10 together with the connector 12 are formed by a common piece of sheet metal.
  • the movable end 14 of the contact tongue 10 is prestressed with respect to a contact point on the fixed contact piece 9 and rests on the fixed contact piece 9 in an electrically connecting manner without a force lifting the movable end, as shown in FIG. 3.
  • the control of the contact piece is done by a camshaft 15, which consists of a cam sleeve 16 and a rotating shaft 17 guided in the cam sleeve.
  • the fixed contact pieces 9 are largely embedded in the housing parts 2 and 1, respectively, so that there is a well fixed connection between the fixed contact 18 and the connections designed as knife contacts.
  • the connectors 20 punched out of a piece of sheet metal are all in one plane and are cast with a projection 21 of the corresponding housing part 1, 2.
  • the connecting pieces 23 leading to the fixed ends 11 of the movable contact tongues 10 are constructed, whereby, as can be seen from FIG. 2, the contact tongues predominantly lead to a single connecting piece 23 and are non-detachably connected by means of rivets 13. However, the connecting pieces can also merge in one piece into the contact tongues, which results in a further simplification.
  • the contact tongues have curvatures 24, 25 which serve in part to increase the spring travel and in part to form a run-on slope for the cams 26 of the cam sleeve 16 which act on the contact tongues.
  • the cam sleeve is rotatable, but is immovable in its longitudinal direction in a split bearing 25, which is formed by the two housing parts 1, 2 connected to one another.
  • the bearing point 28 forms a further pivot bearing for the cam sleeve.
  • the connecting pieces 20 are provided with a bend 29 which is cast into the housing parts 1, 2.
  • the rotary movement of the cam sleeve follows the rotary movement of the rotary shaft 17, a drive projection 30 (see also FIG. 7) engaging in a drive groove 31 (see FIG. 8) of the cam sleeve.
  • the rotary shaft is rotatably fixed, but also longitudinally movable relative to the cam sleeve 16.
  • the rotary handle 32 can be displaced in the longitudinal direction of the rotary shaft, the rotary handle 32 being detachably connected to the rotary shaft 17.
  • the position of the rotary shaft 17 is also changed in its longitudinal direction.
  • This movement is important for a radial movement of two switching pins 33 mounted radially in the second housing half, which engage in a control groove in the rotary shaft 17.
  • This control groove extends over part of the circumference of the rotary shaft 17, and the bottom of this groove can be configured such that the switching pins are moved in the axial direction thereof by an angular adjustment of the rotary shaft.
  • brackets 35 attached to these switching pins they are able to move associated contact tongues 37 (see for example FIG. 4) which are carried along by the brackets 35 when the switching pins 33 move axially. In this way, the switching tongues 37 mentioned last can be actuated by a rotary movement.
  • a longitudinal movement of the rotary shaft 17 can also be used for a radial movement of the switching pins 33 and thus for a change in the switching position of the associated contact tongue.
  • the control groove 34 has a ramp 38 which, when the rotary handle 32 is pressed in from the position shown in FIG. 1 into the position shown in FIG. 2, plunges into the control groove End of the switching pins 33 acts and lifts them one after the other. In this way, the two switching pins 33 are raised one after the other (see also FIG. 4) and the corresponding contacts are thus opened.
  • the two housing halves 1, 2 also create a locking chamber 39 which has a suitable locking contour 40.
  • the ends of two spring-loaded locking pins 40 engage in this locking contour.
  • the contour is designed in such a way that both a detent defining the longitudinal position of the rotary shaft 17 is possible, and a detent defining the rotational position of this shaft 17.
  • individual locking recesses are distributed over the circumference of the locking chamber, as can be seen in FIG. 1, in the longitudinal direction of which the locking recesses 41 are the case.
  • the rotary shaft 17 is secured with its edge end 42 against rotation relative to the rotary handle 32.
  • it also has a detent spring 43 which engages in a corresponding detent opening in the rotary handle 32 and thus secures the rotary handle in the longitudinal direction.
  • a mandrel 44 extending from the rotary shaft 17 can also be used, which projects into a corresponding opening in the holding sleeve 45 of the rotary handle 32.
  • a receiving chamber 46 which is essentially for receiving a printed circuit board and the components equipped with this printed circuit board, for example incandescent lamps, potentiometers, interference suppression capacitors and the like. serves.
  • the circuit board 47 is in the direction of the knife contacts 19 in the receiving chamber inserted.
  • the circuit board 47 is provided with clamping bushes 48, into which contact pins 49 protrude. These contact pins have a connection to suitable knife contacts 19, so that the circuit board can be supplied with energy from there.
  • the connection can be made via similar connecting pieces 20, as happened with regard to the contact tongues 10.
  • the printed circuit board 47 can be provided with lighting elements 50, which illuminate opposite lighting symbols on the switch housing or a corresponding cover.
  • the rotary handle 32 can also be provided with suitable light guides which receive emitted light and lead to corresponding symbols on the surface of the rotary handle and illuminate it.
  • 2 shows a proposal in which a collecting surface 51 is provided on the inner surface of the rotary handle, which allows the light to enter the rotary handle and guides it at a suitable location, for example to a light location 52 on the knob 53 of the rotary handle 32.
  • a housing sleeve 54 which can be assembled from several sections. In this way it is possible to form the two housing halves essentially symmetrically, as shown in FIGS. 3 and 4, without these being able to move radially relative to one another in a plane running parallel to the connecting pieces.
  • support ribs 55 are also shown, which hold the housing halves 1, 2 in contact with the housing sleeve 54 and give the switch increased strength.
  • the circumference of the housing sleeve is also arranged at the level of the rotary handle 32, which is essentially circular, while it has an essentially square cross-section at the level of the switch cam.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
EP96101450A 1995-02-07 1996-02-02 Interrupteur rotatif ayant deux éléments de boítier, chaque élément étant muni d'un jeu de contacts Expired - Lifetime EP0726587B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19503903A DE19503903A1 (de) 1995-02-07 1995-02-07 Drehschalter mit zwei jeweils eine Kontaktanordnung aufweisenden Gehäuseteilen
DE19503903 1995-02-07

Publications (2)

Publication Number Publication Date
EP0726587A1 true EP0726587A1 (fr) 1996-08-14
EP0726587B1 EP0726587B1 (fr) 2000-06-14

Family

ID=7753318

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96101450A Expired - Lifetime EP0726587B1 (fr) 1995-02-07 1996-02-02 Interrupteur rotatif ayant deux éléments de boítier, chaque élément étant muni d'un jeu de contacts

Country Status (2)

Country Link
EP (1) EP0726587B1 (fr)
DE (2) DE19503903A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0866543A2 (fr) * 1997-03-22 1998-09-23 ASG Luftfahrttechnik und Sensorik GmbH Entraínement de positionneur
FR2774211A1 (fr) * 1998-01-27 1999-07-30 Yves Praizelin Systeme permettant d'obtenir le plus possible de contacts, afin de maximiser le nombre de fonctions d'un appareil, a l'aide de blocs a contacts a commande radiale longitudinale et rotative d'un axe central et de pieces centrales
GB2336722A (en) * 1998-04-20 1999-10-27 Arcolectric Switches Ltd Rotary switch assembly

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29818196U1 (de) 1998-10-12 1999-01-07 DREEFS GmbH Schaltgeräte und Systeme, 96364 Marktrodach Nockendrehschalter
DE10239157C1 (de) * 2002-08-27 2003-11-27 Lumberg Connect Gmbh & Co Kg Schaltvorrichtung
US7223926B1 (en) * 2006-07-13 2007-05-29 Harris Corporation Knob assembly for operating the switch of a radio
JP6568899B2 (ja) * 2017-06-26 2019-08-28 矢崎総業株式会社 車両用サンバイザ

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1102242B (de) * 1958-12-24 1961-03-16 Karl Fischer Mehrstufenschalter, insbesondere fuer die Heizleistungsregelung elektrischer Kochplatten
US4071720A (en) * 1976-06-17 1978-01-31 Motorola, Inc. Binary coded cam selector switch having split housing and dent structure
EP0071207A2 (fr) * 1981-07-31 1983-02-09 BROWN, BOVERI & CIE Aktiengesellschaft Interrupteur électrique rotatif avec un axe de positionnement actionné en rotation et en coulissement axial par un organe de commande

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1231780B (de) * 1964-04-04 1967-01-05 Elektra Ammann & Cie Nockenschalter in Schalenbauweise
DE7114793U (de) * 1971-04-17 1972-09-21 Bbc Ag Elektrischer Schalter mit von einer Nockenwelle gesteuerten Kontakthebeln
IT7821740V0 (it) * 1978-05-05 1978-05-05 Breter Spa Contenitore a semigusci per contatti di commutatori a camme.
DE2905377C3 (de) * 1979-02-13 1981-08-13 Elektra Tailfingen Schaltgeräte GmbH & Co KG, 7470 Albstadt Elektrischer Schalter
SE457185B (sv) * 1982-03-20 1988-12-05 Huetoegepgyar Spaerrande omkopplare foer val av driftsaett vid kylanordningar, saerskilt mobila absorptionsskaap
DE9013306U1 (de) * 1990-09-20 1990-11-29 W. Gessmann GmbH, 74211 Leingarten Drehschalter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1102242B (de) * 1958-12-24 1961-03-16 Karl Fischer Mehrstufenschalter, insbesondere fuer die Heizleistungsregelung elektrischer Kochplatten
US4071720A (en) * 1976-06-17 1978-01-31 Motorola, Inc. Binary coded cam selector switch having split housing and dent structure
EP0071207A2 (fr) * 1981-07-31 1983-02-09 BROWN, BOVERI & CIE Aktiengesellschaft Interrupteur électrique rotatif avec un axe de positionnement actionné en rotation et en coulissement axial par un organe de commande

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0866543A2 (fr) * 1997-03-22 1998-09-23 ASG Luftfahrttechnik und Sensorik GmbH Entraínement de positionneur
EP0866543A3 (fr) * 1997-03-22 1999-09-15 ASG Luftfahrttechnik und Sensorik GmbH Entraínement de positionneur
FR2774211A1 (fr) * 1998-01-27 1999-07-30 Yves Praizelin Systeme permettant d'obtenir le plus possible de contacts, afin de maximiser le nombre de fonctions d'un appareil, a l'aide de blocs a contacts a commande radiale longitudinale et rotative d'un axe central et de pieces centrales
GB2336722A (en) * 1998-04-20 1999-10-27 Arcolectric Switches Ltd Rotary switch assembly
GB2336722B (en) * 1998-04-20 2002-04-17 Arcolectric Switches Ltd Switch assembly

Also Published As

Publication number Publication date
DE59605417D1 (de) 2000-07-20
DE19503903A1 (de) 1996-08-08
EP0726587B1 (fr) 2000-06-14

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