EP0887819A2 - Commutateur électrique à bouton poussoir - Google Patents

Commutateur électrique à bouton poussoir Download PDF

Info

Publication number
EP0887819A2
EP0887819A2 EP98111268A EP98111268A EP0887819A2 EP 0887819 A2 EP0887819 A2 EP 0887819A2 EP 98111268 A EP98111268 A EP 98111268A EP 98111268 A EP98111268 A EP 98111268A EP 0887819 A2 EP0887819 A2 EP 0887819A2
Authority
EP
European Patent Office
Prior art keywords
key
electrical
housing
switch according
steering 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.)
Granted
Application number
EP98111268A
Other languages
German (de)
English (en)
Other versions
EP0887819B1 (fr
EP0887819A3 (fr
Inventor
Gerd Rudplh
Erhard Lange
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.)
Delphi Technologies Inc
Original Assignee
Eaton Corp
Delphi Technologies Inc
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 Eaton Corp, Delphi Technologies Inc filed Critical Eaton Corp
Publication of EP0887819A2 publication Critical patent/EP0887819A2/fr
Publication of EP0887819A3 publication Critical patent/EP0887819A3/fr
Application granted granted Critical
Publication of EP0887819B1 publication Critical patent/EP0887819B1/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
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/10—Bases; Stationary contacts mounted thereon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/064—Limitation of actuating pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/01—Mounting on appliance
    • H01H2223/014—Mounting on appliance located in recess
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/026—Car

Definitions

  • the invention relates to an electrical key switch with a housing in which a switching elements Contact unit is arranged, and at least one automatically resetting and off-center Button with one acting on the switching elements Switch plunger.
  • Such an electrical device is known from DE 195 11 878 A1 Key switch known. This is with a switching elements receiving housing and several self-resetting as well as off-center keys with one each the switching tappets acting on the switching elements.
  • Each key has one with two opposing operating surfaces provided actuation bead on the approximately is aligned axially parallel to the key bearing.
  • the one on the Side of the key bearing introduced approximately parallel to the housing Actuating force has the same direction of action on the Button like the one on the opposite side is roughly vertical actuating force introduced to the housing.
  • the housing of the electric key switch is fixed to the steering wheel connected to a motor vehicle, the actuating surfaces the buttons through an aperture in the steering wheel hub project through the surrounding steering wheel bowl.
  • Such a electric key switch is particularly suitable for triggering of switching functions, such as for temporary Speed control (cruise control) of the motor vehicle and / or to control the operating functions of an Vehicle housed radio cassette unit.
  • switching functions such as for temporary Speed control (cruise control) of the motor vehicle and / or to control the operating functions of an Vehicle housed radio cassette unit.
  • a circuit board designed as a contact unit is accommodated, the one spring unit attached to the housing assigned.
  • the Switch plunger on the spring unit By pressing a button, the Switch plunger on the spring unit and connects or interrupts Current paths on the circuit board.
  • the circuit board itself is rigidly attached to the interior of the housing.
  • Such microswitches are very inexpensive to manufacture and easy to use. However, they have the disadvantage that they are created an overload, namely by actuating the associated Key are often destroyed or damaged and thus the electric key switch becomes unusable.
  • the object is achieved in that the Contact unit resiliently mounted in the housing and against excessive Force applied by the switching plunger to the switching elements is compliant.
  • a spring unit arranged between the contact unit and the base of the housing a spring unit arranged.
  • the contact unit by means of clamping elements formed on the housing with a Clearance kept against the base of the housing.
  • the contact unit is thus secured in the housing, however, when the button is pressed, it can move a certain amount Overstroke in the direction of the housing base against the resistance the spring unit can be moved.
  • the contact unit is preferably designed as a printed circuit board, while the switching elements of the contact unit microswitch, Are jumpers or the like. Especially are suitable due to the high functionality and the microswitches are easy and inexpensive to manufacture.
  • the key and the base of the housing on the one hand by key bearings and on the other hand by at least one that has a movement play Clip device connected together.
  • the key bearing causes the button to pivot by a certain amount Axis while the clipping device pivots button is limited by a predetermined range.
  • the key preferably has in its cavity one from the housing inner wall perpendicular to the contact unit protruding pin loaded with a compression spring. This causes the key to be reset. When you release the button the compression spring on the pin relaxes and pushes the button back to its original position.
  • the button has a with two opposing operating surfaces Actuator bead, which is essentially axially parallel is directed to the key bearing. This has on the side of the key bearing approximately parallel to the operating force exerted the same direction of action on the button as the one on the opposite side is approximately perpendicular to the housing exerted operating force. This makes it very easy to use achieved, which enables the electrical Operate pushbuttons from different directions. As a result, no complex deflection gears are required, the direction of the actuating forces on the direction of action to adjust the button, which is extremely cost-effective.
  • the key switch such as in the area of a steering wheel of a motor vehicle attached that one encompassing the steering wheel of the steering wheel Hand with her thumb on one operating surface and with your finger on the other operating surface the button can act.
  • the hand can move around of the steering wheel on the steering wheel.
  • the right thing The required actuation force is then dosed very easily possible.
  • Analogous to the possibilities of the natural Movement of the fingers or thumb becomes the actuating force initiated, when pressing the push button the handle around the steering rim cannot be released got to. Rather, there is a tighter encirclement of the steering wheel by the finger or Thumb.
  • the housing is firmly connected to the steering wheel, whereby the operating surfaces of the button through an aperture in project through a steering wheel bowl surrounding the steering wheel hub and no steering wheel spokes in the area of the button are provided.
  • a symbol area which is indicated by a light element arranged below the key illuminates becomes.
  • a symbol area which is indicated by a light element arranged below the key illuminates becomes.
  • the button has in its cavity on its housing inner wall one from the light element of the contact unit towards the symbol surface.
  • the length of the light guide channel is such that this with excessive force attack with its front end hits the base of the housing. This also becomes a Overtravel and thus excessive force application of the button the associated switching element prevented.
  • the pushbutton switch attached to the steering wheel preferably also has at least three keys arranged side by side on. Thus, several switching functions on one electrical Push button switches can be realized.
  • the middle or the outer keys have sealing collars on their side walls facing each other, the gap between the adjacent keys bridge.
  • the sealing collars prevent penetration of dirt in the push button. In addition, that will prevents unwanted radiation of light from that in the Housing existing light element goes out.
  • the key bearing for each key preferably consists of at least one bearing bracket with bearing journal fixed to the housing and a corresponding opening in the side wall the button.
  • buttons of each key switch and the Switching elements of the contact unit with different Switching functions are assigned. So it is possible that Keys of each key switch and the switching elements of the contact unit with switching functions for controlling an im Motor vehicle radio and / or cassette player and / or CD player and / or CD changer device occupy.
  • a steering wheel 1 is shown, the one Switch unit 2 is assigned. Behind the steering wheel 1 is the steering column 3, in which the steering column 4 is mounted, at the end of which the steering wheel 1 is located. Concentric to Steering wheel 1, the steering wheel hub 5 is arranged, the steering wheel bowl 6 surrounds. The steering wheel bowl 6 takes the airbag, the horn contact and an electrical connection system on, through which the contact from the rotating steering wheel 1 to fixed steering column 3 is transmitted. The steering wheel 1 has a steering rim 7, the steering wheel spokes 8 with the steering wheel bowl 6 surrounding the steering wheel hub 5 is.
  • the switch unit 2, which is in the steering wheel bowl 6 is arranged, consists of two pushbuttons 9, one of which one is arranged on each side of the steering wheel 1. Everyone the key switch 9 has three keys 10, which are side by side and are arranged visible from the operator.
  • housing 11 with narrow sides 12 and long sides 13 on. At opposite corners of the housing 11 between a narrow side 12 and a long side 13 a mounting flange 14 with a recessed mounting hole 15 molded. For stiffening the mounting flange 14 there is a strut 16 between the mounting flange 14 and the narrow side 12.
  • the housing 11 is 17 wider at its base than the buttons 10. Furthermore, there is a connection 18 on the housing wall 19 trained and merges into a base 20.
  • the base 20 does not cover the entire opening at the base 17 of the housing 11 onwards. Electrical lead through a recessed free space 21 Lines 22 to terminal 18 through. For every key 10 two bearing brackets 23 are molded onto the base 20.
  • the Bearing tabs 23 form key bearings 24 which are eccentric Housing 11 lie.
  • the two available for a 10 button Bearing brackets 23 (FIG. 9) are spaced apart from one another as far as that they also guide the key 10 axially.
  • On the inside 25 of the base 20 there are switching elements 26, that for both electrical and mechanical Switch are provided.
  • the trained as a microswitch Switching elements 26 are arranged on a contact unit 27.
  • the key 10 has on the opposite of the housing 11 Side of a key cavity that is surrounded by a Switch plunger 29 molded onto a key wall 28 is penetrated.
  • Each key 10 has an actuating bead 30 which is approximately aligned axially parallel to the key bearing 24 and is spaced from this.
  • On both sides of the key edge 31 to the actuating bead 30 extending surfaces the actuating surfaces 32 and 33. the actuating surfaces 32 and 33 run approximately like the actuating bead 30 axially parallel to the key bearing 24.
  • Perpendicular to the key bearing 24 and starting from the circumferential key edge 31 project vertically to the actuating surfaces 32 and 33 key legs 34 in front.
  • a bearing flange closes on each key leg 34 35 in which a flange bore 36 is inserted is.
  • a journal 37 fastened to the bearing bracket 23 protrudes into the flange bore 36.
  • the housing 11 of the Key switch 9 attached in the area of the steering wheel 1.
  • the Attachment takes place so that the steering ring 7 encompassing Hand with her fingers 43 in front of the operating surface 33 and the thumb 41 lies in front of the actuating surface 32 and thus the actuating force 42 or 44 can be initiated.
  • the most favorable arrangement is when the actuating bead 30 approximately parallel to the steering rim 7 on the Height of the rear 45 of the steering wheel 7 is present.
  • the backside 45 of the steering collar 7 is the one facing away from the operator Steering wheel side 1.
  • the housing 11 is firmly connected to the steering wheel 1. Consequently the button switch 9 rotates with the steering wheel 1.
  • the Steering wheel 1 is in the region of its steering wheel hub 5 Steering wheel bowl 6 surrounded, which also with the steering wheel 1 turns.
  • In the steering wheel bowl 6 is an aperture hole 46, which is only so large that the buttons 10 of the Key switch 9 with their actuating surfaces 32 and 33 and her actuating bead 30 protrude therethrough and freely movable are.
  • the steering wheel bowl 6 also covers the Buttons 10 protruding area of the housing 11 with the mounting flanges 14 arranged thereon.
  • the attachment of the switch 9 on the steering wheel 1 is always on a place where there are no steering wheel spokes 8 in front of the buttons 10 of the key switch 9 lie.
  • the steering wheel 1 has a total four steering wheel spokes 8.
  • the distance between two Steering wheel spokes 8 is designed so that the buttons 10 of the Key switch 9 directly between the two steering wheel spokes 8 look through. This gives the operator free Insight into the keys 10 or the operating areas 32.
  • each symbol 47 has a specific function, in the exemplary embodiment related to a radio cassette unit, assigned, namely, for example, station / track search functions according to the button switch 9 of FIG. 7 or volume / switching functions according to the key switch 9 according to FIG. 8.
  • a lighting element 49 in the form of an LED is applied inside the key switch 9 is on the contact unit according to FIG. 5 27, a lighting element 49 in the form of an LED is applied. If the luminous element 49 is activated, it radiates the light also through the symbol area 48 in the button 10.
  • the recognition the switching function by on the actuating surfaces 32 and 33 applied tactile symbols (not shown).
  • a light guide channel 50 in the form of a tube with a square cross section, by the light emitted by the lighting element 49 to the symbol area 48 on the actuation area 33 of the key 10 is directed.
  • a pin 51 protrudes from the light guide channel 50, which is from the housing inner wall, for example in the transition area from the actuating bead 30 to the actuating surface 32, perpendicular extends to the contact unit 27.
  • This pin 51 is about arranged in the center of the key 10 cavity. Circumferential this is provided with stiffeners 52, which are almost extend over its entire length.
  • the free end 53 of the Pin 51 is surrounded by a compression spring 54, which is on the one hand on the stiffener 52 and on the other hand on the Top of the contact unit 27 supports.
  • a web 55 is integrally formed with the switching plunger 29 is connected. As a result, the switching plunger 29 is stabilized in position held.
  • On the base 20 of the housing 11 and corresponding to this on each of the buttons 10 are clip connections 56 trained, namely opposite the Side on which the key bearings 24 are located.
  • the Clip connection 56 has such a high clearance that the Key 10 around the key bearing 24 can be operated.
  • a circuit board 57 is arranged on the base 20 of the housing 11 .
  • Clamping elements 58 make the circuit board 57 movable held (Fig. 10).
  • a spring unit 60 designed as a leaf spring 59 is arranged between the bottom of the circuit board 57 and the top of the base 20 of the housing 11 .
  • the switching plunger 29 presses the as Microswitch trained switching element 26 on the Printed circuit board 57 are arranged. If there is a larger one Exerting force, the circuit board 57 will continue to counter the spring action of the leaf spring 59 pressed and gives thus within the limits of the clamping elements 58. Here different switching functions through the microswitch triggered. Via lines 23, which follow 18 of the housing 11 fixed by means of a bracket 61 are, the electrical impulses via further connecting lines 63 and the attached connector 64 transmitted to the vehicle electrical system.
  • sealing collar 63 is formed, which in a corresponding recess 64 of the adjacent outer key 10 protrudes. There is a between the adjacent keys 10 Gap 65 formed to rub against the adjacent one Avoid buttons 10. Through the sealing collars 63 on the middle button, column 65 is covered, so that on the one hand, no dirt into the interior of the pushbutton switch 9 arrive and on the other hand generated by the lighting element 49 Light cannot escape.

Landscapes

  • Steering Controls (AREA)
  • Push-Button Switches (AREA)
EP98111268A 1997-06-23 1998-06-18 Commutateur électrique à bouton poussoir Expired - Lifetime EP0887819B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19726529A DE19726529C2 (de) 1997-06-23 1997-06-23 Elektrischer Tastschalter
DE19726529 1997-06-23

Publications (3)

Publication Number Publication Date
EP0887819A2 true EP0887819A2 (fr) 1998-12-30
EP0887819A3 EP0887819A3 (fr) 1999-06-09
EP0887819B1 EP0887819B1 (fr) 2004-09-08

Family

ID=7833327

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98111268A Expired - Lifetime EP0887819B1 (fr) 1997-06-23 1998-06-18 Commutateur électrique à bouton poussoir

Country Status (3)

Country Link
US (1) US6013884A (fr)
EP (1) EP0887819B1 (fr)
DE (2) DE19726529C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001082322A1 (fr) * 2000-04-20 2001-11-01 Delphi Technologies, Inc. Element d'actionnement d'un commutateur electrique, notamment d'un commutateur de volant sur un vehicule
EP1108611A3 (fr) * 1999-12-15 2006-06-07 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Arrangement d'interrupteurs pour volant de direction

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19936384A1 (de) * 1999-08-03 2001-02-08 Volkswagen Ag Lichtschalter
DE19948723A1 (de) * 1999-10-09 2001-04-12 Eaton Corp Eaton Ct Cleveland Elektrischer Kipptastschalter
US6626458B2 (en) * 2000-09-26 2003-09-30 Toyoda Gosei Co., Ltd. Steering wheel having airbag apparatus
US7276370B2 (en) 2000-10-24 2007-10-02 Donald Danforth Plant Science Center Rf2a and rf2b transcription factors
JP4184926B2 (ja) 2003-11-10 2008-11-19 アルプス電気株式会社 ステアリングスイッチ装置
CN1905107A (zh) * 2005-07-29 2007-01-31 鸿富锦精密工业（深圳）有限公司 一种电子设备及其按键
DE102006053499B4 (de) * 2006-11-14 2009-04-16 Ford-Werke Gmbh Lenkradschaltermodul für ein Kraftfahrzeug
DE102008049008B4 (de) * 2008-09-25 2012-08-23 Schurter Ag Elektrischer Taster
JP5906094B2 (ja) * 2012-01-25 2016-04-20 富士重工業株式会社 車両の駆動力制御装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0157037A2 (fr) * 1984-03-29 1985-10-09 Bowmar Instrument Corporation Commutateur à bouton poussoir à longue course
GB2233826A (en) * 1989-07-12 1991-01-16 Asahi Optical Co Ltd Push button switch
FR2669767A1 (fr) * 1990-11-23 1992-05-29 Philips Electronics Nv Contacteur pour clavier de commande, et appareil audio-video comportant un tel contacteur.
DE29604006U1 (de) * 1996-03-06 1996-08-14 OSA Elektronik GmbH, 12459 Berlin Taster mit Beleuchtung
DE19511878A1 (de) * 1995-03-31 1996-10-02 Eaton Controls Gmbh Elektrischer Tastschalter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1214630A (en) * 1967-03-31 1970-12-02 Lucas Industries Ltd Electrical switch assemblies
US4051916A (en) * 1975-12-22 1977-10-04 Nissan Motor Company, Limited Apparatus for mounting instrument to instrument panel in motor vehicle
JPS53125881U (fr) * 1977-03-15 1978-10-06
JPH0517268Y2 (fr) * 1986-04-16 1993-05-10
JPH0741924U (ja) * 1993-12-20 1995-07-21 株式会社東海理化電機製作所 スイッチ装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0157037A2 (fr) * 1984-03-29 1985-10-09 Bowmar Instrument Corporation Commutateur à bouton poussoir à longue course
GB2233826A (en) * 1989-07-12 1991-01-16 Asahi Optical Co Ltd Push button switch
FR2669767A1 (fr) * 1990-11-23 1992-05-29 Philips Electronics Nv Contacteur pour clavier de commande, et appareil audio-video comportant un tel contacteur.
DE19511878A1 (de) * 1995-03-31 1996-10-02 Eaton Controls Gmbh Elektrischer Tastschalter
DE29604006U1 (de) * 1996-03-06 1996-08-14 OSA Elektronik GmbH, 12459 Berlin Taster mit Beleuchtung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1108611A3 (fr) * 1999-12-15 2006-06-07 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Arrangement d'interrupteurs pour volant de direction
WO2001082322A1 (fr) * 2000-04-20 2001-11-01 Delphi Technologies, Inc. Element d'actionnement d'un commutateur electrique, notamment d'un commutateur de volant sur un vehicule
US6781071B2 (en) 2000-04-20 2004-08-24 Delphi Technologies, Inc. Electrical switch actuating element

Also Published As

Publication number Publication date
DE19726529C2 (de) 2001-07-05
DE19726529A1 (de) 1999-01-28
EP0887819B1 (fr) 2004-09-08
EP0887819A3 (fr) 1999-06-09
US6013884A (en) 2000-01-11
DE59811916D1 (de) 2004-10-14

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