EP1662531A2 - Betätigungsknopf für einen mechanischen Positionsgeber - Google Patents

Betätigungsknopf für einen mechanischen Positionsgeber Download PDF

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Publication number
EP1662531A2
EP1662531A2 EP05023360A EP05023360A EP1662531A2 EP 1662531 A2 EP1662531 A2 EP 1662531A2 EP 05023360 A EP05023360 A EP 05023360A EP 05023360 A EP05023360 A EP 05023360A EP 1662531 A2 EP1662531 A2 EP 1662531A2
Authority
EP
European Patent Office
Prior art keywords
control button
arm
button according
contact
rotary wheel
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Withdrawn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
EP05023360A
Other languages
English (en)
French (fr)
Other versions
EP1662531A3 (de
Inventor
Louis Lacroix
Patrick Corduan
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.)
Valeo Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques SAS
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 Valeo Systemes Thermiques SAS filed Critical Valeo Systemes Thermiques SAS
Publication of EP1662531A2 publication Critical patent/EP1662531A2/de
Publication of EP1662531A3 publication Critical patent/EP1662531A3/de
Withdrawn legal-status Critical Current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
    • H01H19/54—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
    • H01H19/63—Contacts actuated by axial cams
    • 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
    • H01H19/005—Electromechanical pulse generators
    • 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
    • H01H25/065—Operating part movable both angularly and rectilinearly, the rectilinear movement being along the axis of angular movement using separate operating parts, e.g. a push button surrounded by a rotating knob
    • 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
    • H01H19/11—Movable parts; Contacts mounted thereon with indexing means
    • 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
    • H01H19/005—Electromechanical pulse generators
    • H01H2019/006—Electromechanical pulse generators being rotation direction sensitive, e.g. the generated pulse or code depends on the direction of rotation of the operating part

Definitions

  • the invention relates to a control button for a control assembly of a motor vehicle dashboard and more particularly to a central control console for a ventilation device, heating and / or air conditioning of a vehicle automobile.
  • buttons comprise rotary encoders using different techniques, for example optical, with an incident beam which is reflected towards an optical sensor by a reflective track provided for example with a succession of radial "notches” arranged on one or more concentric rings, or else mechanical, with one or more electrically conductive tracks and metal contactors rubbing on said tracks.
  • a disadvantage of rotary encoders of the mechanical type, such as that described in US Pat. No. 3,736,390, is that they have several concentric tracks for determining the direction of rotation and the incrementation of the number of steps traversed by the encoder. This generates a large bulk, more precisely in terms of the diameter of the encoder, friction noise more frequent because of the number of tracks and contactors, an imbalance of the moving part of the encoder around its axis of rotation because this moving part has only one contactor per track, and false contacts more numerous generating measurement errors.
  • Each arm may comprise in the middle a tab intended to cooperate with said axial circular notches of the rotary wheel.
  • Said encoding part comprises two substantially parallel arms mounted on the central part of the support.
  • said axial circular notches are distributed so that it is possible to simultaneously accommodate each of the two tabs on a notch or between two adjacent notches.
  • Said ring of the rotary wheel further comprises a plurality of radial circular notches.
  • Said encoding piece further comprises a third arm extending perpendicularly from substantially the middle of the central support portion, the third arm being folded towards the rotary wheel through the plate and intended to cooperate with said radial circular notches of the rotary wheel to allow a rotation step by step of the rotary wheel.
  • control button comprises a contact key intended to act on the printed circuit to activate a certain function.
  • Said contact button is a central contact key introduced into the rotary wheel.
  • Said encoding piece comprises an additional arm comprising at a free end a protuberance acting as a contactor for under the action of a support of a user on said central contact key to bring the protrusion into contact with an additional conductive track of the printed circuit board.
  • said additional arm is disposed parallel to the two arms from substantially the middle of the central support portion.
  • the control button further comprises backlighting means for illuminating symbols inscribed on said central key and associated with said determined function. It can be associated with an interface screen to display feedback on the action of the command button.
  • Said determined function is selected from the group of the following functions: air conditioning, ventilation, heating, radio listening, cassette playback, CD playback, navigation, telecommunications.
  • the invention also relates to a control assembly, for example for ventilation apparatus, heating and / or air conditioning of a motor vehicle, comprising a control button as defined above.
  • FIG. 1 shows an example of a control button 10 of a motor vehicle dashboard whose main function is the control of the heating, ventilation and / or air conditioning and which comprises a mode of operation allowing adjustment of the temperature of the passenger compartment of this motor vehicle.
  • This button is associated with a display screen 12 placed nearby, generally above, and on which displays the various parameters associated with the operating mode of this function and possibly other functions of the motor vehicle.
  • buttons can be associated with such a button including: speed blower, air distribution, radio device, playback of cassettes, CD playback, navigation, telecommunications, etc.
  • the main function associated with the control button can be activated or deactivated by pressing a contact button 14, knowing that the activation of the function in question is visualized by the lighting of sets or symbols of light. 140, 142 registered on this contact key and identifying this function.
  • each function is associated with a finite number of different values, sequentially controlled by a rotary wheel 16 during its angular rotation and corresponding in the example shown at a temperature setting.
  • An indicator light 120 is provided at the display screen 12 to symbolize the different values associated with this temperature setting.
  • other indicator lights 122, 124, 126 and 128 may also be provided to represent other modes of operation. When a particular mode of operation is activated, only the indicator light associated with that particular mode will illuminate.
  • control knob comprises, in addition to the aforementioned contact key 14 and rotary wheel 16, a plate 18, an encoding piece 20 and a printed circuit 22.
  • the plate 18 which forms the support structure of the control button comprises a horizontal base 180 provided with an opening 182 having a tubular portion 184 formed protruding.
  • This tubular portion is intended to support the rotating wheel 16 which has at its base a ring 160 notched both at its periphery and at its free end. More precisely, this ring comprises at its periphery a plurality of radial circular notches 162 and at its free end a plurality of axial circular catches 164.
  • the contact key 14 can be introduced into the tubular portion 184 to form a central contact key 14 immobile in rotation with respect to the plate 18.
  • the printed circuit 22 comprises diode-type backlighting means 220, 222 and a switch or push-button 224 receptive to mechanical actions of the contact key 14. More precisely, the push-button or blister 224 is assigned to the validation of the function and the control of the two diodes 220, 222 indicating the validation status of this function by illuminating the symbols 140, 142 written on this key.
  • the printed circuit is of course controlled by an electronic control unit (not shown) integrated for example in a dashboard housing and allowing the operation of the function enabled.
  • the printed circuit also comprises electrically conductive plane contact tracks, for example made of metal such as copper, forming with the encoding part 20 a three-way encoder with a common (common conductive track 226) and two independent outputs from one another (conductive contact tracks 228, 230).
  • electrically conductive plane contact tracks for example made of metal such as copper
  • the encoding piece 20 intended to cooperate with the rotary wheel 16, manipulable by a user such as the driver or the front passenger of the motor vehicle, and the printed circuit 22 is a conductive metal part, usually made of bronze, and preferably made by cutting and stamping. It has a generally U-shaped shape with a central support portion 200 fixed to the common conductive track 226 of the printed circuit 22 and at least one arm, for example two substantially parallel arms 202, 204 mounted at the two ends of this central support portion. . These arms are raised relative to the central support portion so that, in a rest position, they are not in contact with the printed circuit.
  • Each arm has at its free end a protuberance 206, 208, advantageously curved, acting as a contactor and in the middle a tab 210, 212 folded towards the rotating wheel 16, passing through the base 180 of the plate 18, and intended to cooperate with the axial circular notches 164 of the rotary wheel for contacting one or the other or both convex protuberances 206, 208 with the two conductive contact tracks 228, 230 which face them.
  • This tab is advantageously rounded at its end and stamped to allow better support of the axial notches of the rotary wheel.
  • the encoder piece further comprises, disposed perpendicularly to the middle of its central support portion 200 a third arm 214 folded towards the rotating wheel 16 also passing through the plate 18 and intended to cooperate with the radial circular notches 162 of the rotary wheel to allow a rotation step of the rotary wheel and thus ensure a notch and deliver a feeling in the rotation of the wheel.
  • This arm replaces the usual notching blade or a plunger with spring or other blasting.
  • the passage from one notch to another is favored by the presence of a protuberance 216, advantageously curved, at the free end of this third arm whose width adjustment allows to play on the hardness of the notch (see FIG. 6).
  • FIG. 2B shows that the third arm can be associated with another printed circuit 23 arranged perpendicular to the printed circuit 22 and having a third conductive contact track 231.
  • the third arm 214 comprises a protuberance 217, advantageously curved, acting as a contactor so that when the rotary wheel 16 is rotated by one step, a notch circular circular 162 cooperates with the protrusion 216 to contact the contact protrusion 217 with the third contact conductive track 231.
  • control button when a user presses the central contact button 14, it causes the actuation of the push button 224 generating, when the particular function associated with the button is not activated, the activation of this function and the lighting of the diodes 220, 222 which allows the display of this activation state of the function (in the example shown the illumination of the terms AC and temperature) and causing, otherwise, the deactivation of this function and the extinction of these two diodes. Then, the user can by turning the knob 16 adjust the temperature.
  • control button having a contact key 14.
  • control button can be used for setting a particular function already activated.
  • any of the following pairs (1,1) (1,0); (1.0) (0.0); (0,0) (0,1); (0,1) (1,1) give the same direction of rotation and any of the following (1,1) (0,1); (0,1) (0,0); (0,0) (1,0); (1,0) (1,1) gives a reverse direction of rotation.
  • the sense detection can be done on a single change of state.
  • the minimum angle of detection is given by the formula 180 ° / number of notches. For a wheel with 10 recesses and 10 bumps, the minimum angle of detection is 18 °.
  • the repetition of the sequences gives the value of the parameter considered, in this case the temperature.
  • the distribution of the axial circular notches 164 around the rotating wheel is carried out in such a way that it is possible to house simultaneously the two tabs 210, 212 each on a notch (ie a hump) or each between two adjacent notches (ie in a hollow as shown). To do this, these two tabs are not diametrically opposed but slightly offset with respect to this diametrical axis.
  • the two tabs 210, 212 may be arranged diametrically opposite by providing an odd number of axial circular notches 164 around the rotary wheel thus acting on the two tabs 210, 212 alternately.
  • This knob with mechanical rotary encoder is inexpensive because it does not have welding or assembly binding and expensive and uses parts easy to achieve.
  • the present invention can not in any way be limited to the above description.
  • it is quite possible to consider replacing the blister 224 with a simple conductive track 232 of the printed circuit 22 actuated by a convex protrusion 219 of an additional arm 218 of the encoder part 20 as shown in FIG. arm can itself be actuated directly by the central key 14, more precisely by a lower end portion 140 of this key following a user support.
  • the arm is advantageously arranged parallel to the two arms 202, 204, substantially equidistant from each of them.
  • tabs 210, 212 are replaced by flexible protrusions of the plate 18 lowering at the passage of the notches of the wheel and pressing the arms 202, 204.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
EP05023360A 2004-11-24 2005-10-26 Betätigungsknopf für einen mechanischen Positionsgeber Withdrawn EP1662531A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0412456A FR2878369A1 (fr) 2004-11-24 2004-11-24 Bouton de commande a encodeur mecanique

Publications (2)

Publication Number Publication Date
EP1662531A2 true EP1662531A2 (de) 2006-05-31
EP1662531A3 EP1662531A3 (de) 2007-09-05

Family

ID=34951283

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05023360A Withdrawn EP1662531A3 (de) 2004-11-24 2005-10-26 Betätigungsknopf für einen mechanischen Positionsgeber

Country Status (2)

Country Link
EP (1) EP1662531A3 (de)
FR (1) FR2878369A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2991790A1 (fr) * 2012-06-07 2013-12-13 Peugeot Citroen Automobiles Sa Encodeur pour molette de selection rotative
CN112768980A (zh) * 2019-10-21 2021-05-07 薛慎彬 具有透光源的信号产生器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9586480B2 (en) * 2015-05-05 2017-03-07 GM Global Technology Operations LLC Automobiles, automobile instruments, and user interfaces for controlling automobile equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0758135A2 (de) * 1995-08-08 1997-02-12 Teikoku Tsushin Kogyo Co. Ltd. Drehschalter
EP0771681A2 (de) * 1995-10-31 1997-05-07 Alps Electric Co., Ltd. Rotationsdetektor in Kraftwagen
EP1276123A1 (de) * 2000-02-24 2003-01-15 Zexel Valeo Climate Control Corporation Drehschaltermechanismus für eine bedienungstafel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0758135A2 (de) * 1995-08-08 1997-02-12 Teikoku Tsushin Kogyo Co. Ltd. Drehschalter
EP0771681A2 (de) * 1995-10-31 1997-05-07 Alps Electric Co., Ltd. Rotationsdetektor in Kraftwagen
EP1276123A1 (de) * 2000-02-24 2003-01-15 Zexel Valeo Climate Control Corporation Drehschaltermechanismus für eine bedienungstafel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2991790A1 (fr) * 2012-06-07 2013-12-13 Peugeot Citroen Automobiles Sa Encodeur pour molette de selection rotative
CN112768980A (zh) * 2019-10-21 2021-05-07 薛慎彬 具有透光源的信号产生器
CN112768980B (zh) * 2019-10-21 2022-10-21 薛慎彬 具有透光源的信号产生器

Also Published As

Publication number Publication date
FR2878369A1 (fr) 2006-05-26
EP1662531A3 (de) 2007-09-05

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