EP0777246A2 - Interrupteur électrique - Google Patents

Interrupteur électrique Download PDF

Info

Publication number
EP0777246A2
EP0777246A2 EP96118968A EP96118968A EP0777246A2 EP 0777246 A2 EP0777246 A2 EP 0777246A2 EP 96118968 A EP96118968 A EP 96118968A EP 96118968 A EP96118968 A EP 96118968A EP 0777246 A2 EP0777246 A2 EP 0777246A2
Authority
EP
European Patent Office
Prior art keywords
switching ring
switching
contact
contact element
actuating member
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
EP96118968A
Other languages
German (de)
English (en)
Other versions
EP0777246A3 (fr
EP0777246B1 (fr
Inventor
Rainer Kizele
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.)
Marquardt GmbH
Original Assignee
Marquardt 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 Marquardt GmbH filed Critical Marquardt GmbH
Publication of EP0777246A2 publication Critical patent/EP0777246A2/fr
Publication of EP0777246A3 publication Critical patent/EP0777246A3/fr
Application granted granted Critical
Publication of EP0777246B1 publication Critical patent/EP0777246B1/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
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/20—Driving mechanisms

Definitions

  • the invention relates to an electrical switch according to the preamble of claim 1.
  • Such electrical switches are used as pressure switches for switching an electrical circuit.
  • pressure switches can be used in motor vehicles, for example for actuating interior lights or the like.
  • the known switch has a relatively large stroke for the actuator between the on and off position.
  • the switch requires a large housing with a corresponding installation space in the associated electrical device.
  • the installation space is so limited that the known switch can no longer be used.
  • a shorter stroke is desirable in some applications.
  • the invention is therefore based on the object of developing an electrical switch in such a way that the switch manages with a small housing and switches reliably despite a short stroke.
  • the advantages achieved by the invention are, in particular, that only a small pusher path is necessary for the safe actuation of the switch. So a small switch housing is enough off, so that this switch is particularly suitable for miniaturization and can also be used in a small installation space in the electrical device. Despite the small stroke on the handle, only small actuation forces are required to switch.
  • the switch according to the invention has a small number of parts. This reduces the manufacturing and assembly costs.
  • the switch can be used as an on / off switch and can also be flexibly converted to a changeover switch by simply attaching another fixed contact in the housing.
  • the switch can also be designed to be illuminated in a simple manner by optionally placing a lamp in the center of the housing. Consequently, the production can be carried out in large numbers, which makes the switch more cost-effective.
  • the handle occupies the same position when it is switched on and when it is switched off.
  • the switch can thus be provided with a cover on the electrical device in such a way that the trigger is flush with the cover, which can be particularly desirable in applications in motor vehicles.
  • the handle can also be designed as a cover for the switch housing, so that no additional cover is necessary, which further reduces the number of parts required.
  • an electrical switch 1 according to the invention is shown in longitudinal section.
  • the switch 1 has an approximately cup-shaped housing 2 which is open at the top and which is closed at the bottom by a base 3.
  • a flange 4 On the upper side of the housing 2 there is a flange 4 which is provided with through holes 5, so that the electrical switch 1 can be fastened in an electrical device, for example by means of screws.
  • the base 3 is penetrated by the electrical connections 6 for the switch 1, 6 fixed contacts 11 being located on the connections 6 inside the housing 2.
  • an essentially linearly movable actuating element 7 is immersed, which is designed in the manner of a plunger.
  • the actuating member 7 has a cross section at its upper part, which essentially corresponds to the cross section of the upper opening of the housing 2.
  • the actuator 7 forms the upper end of the housing 2, so that there is no need for a separate cover.
  • a cap 13 for the actuation of the switch 1 by the user is placed on the top of the actuating member 7.
  • a compression spring 8 which rests at one end on the actuating member 7, so that the actuating member 7 can be moved against a restoring force.
  • the actuator 7 moves, it acts in a non-positive and / or positive manner on a switching ring 9 which is located in the housing 2.
  • the switching ring 9 is designed such that it can only perform a limited linear movement due to the action of the actuator 7. With further action by the linear movement of the actuator 7, the switching ring 9 then performs a rotary movement. During this rotary movement, the switching ring 9 then acts further on a contact bridge, which consists of a rotatably mounted contact element 10, for movement into a switching position in which the contact bridge electrically bridges the fixed contacts 11.
  • the switching ring 9 on the contact element 10 means are arranged on the switching ring 9 and the contact element 10, which can be brought into operative connection with each other by the linear movement of the switching ring 9, so that during the subsequent rotary movement of the switching ring 9, the contact element 10 can be rotated into the switching position .
  • the switching ring 9 has approximately the shape of a cylinder. Inside the cylinder is a cavity 12 shown in FIG. 1 with an approximately circular cross section. A part 14 on the actuating member 7 projects into this cavity 12. This part 14 also has an approximately circular cross section. On the part 14 of the actuating member 7 and in the cavity 12 of the switching ring 9, a toothing 15 is attached, with which the actuating member 7 acts on the switching ring 9. Part of this toothing 15 is arranged on the actuating member 7 and the other part of the toothing 15 on the switching ring 9. At least part of the toothing 15 is inclined, so that the linear movement of the actuating member 7 can be converted into a rotary movement of the switching ring 9.
  • the toothing 15 is designed as a spiral groove 16 on the circumference of the part 14 on the actuating member 7 in the manner of a screw thread, while a corresponding spiral-shaped projection 17 engaging in the groove 16 is attached to the wall of the cavity 12.
  • a simple, straight protruding pin instead of the spiral extension 17.
  • the switching ring 9 To limit the linear movement of the switching ring 9 guide means are attached to the switching ring 9, which cooperate with a stop located on the switch 1.
  • the attack is on and / or arranged in the housing 2 and in the embodiment shown is formed by a groove wall 18 of a groove 19 which is located in the housing 2 of the switch 1.
  • the guide means is designed as an extension 20 engaging in the groove 19 on the switching ring 9. If the actuating member 7 is moved, the switching ring 9 is moved linearly because of the toothing 15 until the extension 20 bears against the groove wall 18. This prevents a further linear movement of the switching ring 9 and this is then rotated by the oblique toothing 15, the shoulder 20 sliding along the groove wall 18.
  • the size of the groove 19 is dimensioned so that both the required linear and rotary movement of the switching ring 9 can take place.
  • the contact element 10 is designed in the manner of a disk, as can be seen in more detail in FIG. 2.
  • This disk is arranged in a plane running approximately parallel to the fixed contacts 11.
  • the switching contacts 21 are located on the periphery of the disk.
  • the switching contacts 21 are expediently formed in one piece with the disk, in that the switching contacts 21 are partially cut out of the disk and bent from it, as can be seen in particular in FIG. 3.
  • the switching contacts 21 have at least one contact surface 22 which extends in the plane of the fixed contacts 11 and which in turn can be seen in more detail in FIG. 2.
  • the means for rotating the contact element 10 are also shown in FIG. 2. These means consist of at least one cam 23 and a corresponding receptacle 24.
  • the cam 23 is arranged on the switching ring 9 on the side facing the contact element 10 and is approximately wedge-shaped and protrudes from the switching ring 9.
  • the receptacle 24 is located on the side of the contact element 10 facing the switching ring 9 and has an edge 25. The linear movement of the switching ring 9 causes the cam 23 with its steep surface 26 of the wedge to engage the edge 25 on the receptacle 24.
  • the cam 23 is located on a spring arm 27 of the switching ring 9.
  • the spring arm 27 is connected in one piece to the switching ring 9 by a partial cutout 28. So that no one-sided forces are exerted on the contact element 10 during the rotational movement of the contact element 10, two diametrically opposed spring arms 27 with cams 23 can optionally be located on the switching ring 9.
  • the switching positions of the contact element 10 can be designed as latching positions.
  • a surface 30 on the contact element 10 engages in the latching curve 29 in a resilient manner.
  • the surface 30 can optionally be adjacent to the contact surface 22 on the switching contact 21.
  • the latching curve 29 expediently has a surface such that a pressure point that is perceptible to the user when the switch 1 is actuated is generated during the movement of the contact element 10.
  • the compression spring 8 used to generate the restoring force for the actuating member 7 is arranged with its further end on the contact element 10.
  • the compression spring 8 simultaneously exerts the contact force with which the switching contact 21 can be applied to the fixed contact 11. Since the switch contact 21, which engages with its surface 30 in the latching curve 29, is located on the contact element 10, the spring force for the latching and the generation of the pressure point is additionally effected by the compression spring 8.
  • the switch 1 can be designed to be illuminated in a simple manner.
  • the actuating member 7 has an inner cavity 31, which is arranged approximately concentrically to the cavity 12 of the switching ring 9 and can be seen in FIG. 1, and the contact element 10 has a central opening 32 shown in more detail in FIG. 3.
  • a light source 33 for example an incandescent lamp or a light-emitting diode, can be used to illuminate the actuating member 7.
  • the contact surfaces can also be arranged tangentially on the circumference of the contact element and the fixed contacts on the side housing wall instead of on the base.
  • a changeover switch can also be produced in a simple manner by arranging a further fixed contact , so that in a further switching position the contact element makes an electrical connection to the further fixed contact.
  • the switch can also be designed as a switch for several circuits or the like.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
EP96118968A 1995-11-30 1996-11-27 Interrupteur électrique Expired - Lifetime EP0777246B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19544702A DE19544702A1 (de) 1995-11-30 1995-11-30 Elektrischer Schalter
DE19544702 1995-11-30

Publications (3)

Publication Number Publication Date
EP0777246A2 true EP0777246A2 (fr) 1997-06-04
EP0777246A3 EP0777246A3 (fr) 1998-06-17
EP0777246B1 EP0777246B1 (fr) 2002-10-09

Family

ID=7778849

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96118968A Expired - Lifetime EP0777246B1 (fr) 1995-11-30 1996-11-27 Interrupteur électrique

Country Status (2)

Country Link
EP (1) EP0777246B1 (fr)
DE (2) DE19544702A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999038180A1 (fr) * 1998-01-22 1999-07-29 Rafi Gmbh & Co. Elektrotechnische Spezialfabrik Touche
CN101986404A (zh) * 2010-11-15 2011-03-16 中国科学院长春光学精密机械与物理研究所 旋转电限位机构
WO2014165947A3 (fr) * 2013-04-10 2015-09-17 Miles, Vennootschap Onder Firma Dispositif de commutation
CN108453500A (zh) * 2017-02-17 2018-08-28 浙江正泰电器股份有限公司 开关下座装配设备和装配方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000045402A1 (fr) 1999-01-26 2000-08-03 Siemens Aktiengesellschaft Interrupteur a pression et a tirage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE443930C (de) * 1925-08-01 1927-05-12 Siemens Schuckertwerke G M B H Drehschalter mit Steilgewindespindel
DE480911C (de) * 1929-08-10 Hugo Krieger Fa Fussbodenschalter, insbesondere fuer Fernsprechzellen
DE1011751B (de) * 1955-05-27 1957-07-04 Kostal Fa Leopold Fussabblendschalter fuer Kraftfahrzeuge
FR1355599A (fr) * 1963-01-18 1964-03-20 Cem Comp Electro Mec Perfectionnements aux blocs contacts auxiliaires

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3022404C2 (de) * 1980-06-14 1982-09-02 Fa. Leopold Kostal, 5880 Lüdenscheid Elektrischer Drucktastenschalter
DE3032964A1 (de) * 1980-09-02 1982-04-15 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Drucktastenschalter mit drehbarem schaltelement
DE4202214A1 (de) * 1992-01-28 1993-07-29 Marquardt Gmbh Elektrischer schalter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE480911C (de) * 1929-08-10 Hugo Krieger Fa Fussbodenschalter, insbesondere fuer Fernsprechzellen
DE443930C (de) * 1925-08-01 1927-05-12 Siemens Schuckertwerke G M B H Drehschalter mit Steilgewindespindel
DE1011751B (de) * 1955-05-27 1957-07-04 Kostal Fa Leopold Fussabblendschalter fuer Kraftfahrzeuge
FR1355599A (fr) * 1963-01-18 1964-03-20 Cem Comp Electro Mec Perfectionnements aux blocs contacts auxiliaires

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999038180A1 (fr) * 1998-01-22 1999-07-29 Rafi Gmbh & Co. Elektrotechnische Spezialfabrik Touche
US6284992B1 (en) 1998-01-22 2001-09-04 Rafi Gmbh & Co. Elektrotechnische Spezialfabrik Key for a keyboard
AU738683B2 (en) * 1998-01-22 2001-09-27 Rafi Gmbh & Co. Kg Button
CN101986404A (zh) * 2010-11-15 2011-03-16 中国科学院长春光学精密机械与物理研究所 旋转电限位机构
CN101986404B (zh) * 2010-11-15 2012-11-07 中国科学院长春光学精密机械与物理研究所 旋转电限位机构
WO2014165947A3 (fr) * 2013-04-10 2015-09-17 Miles, Vennootschap Onder Firma Dispositif de commutation
CN108453500A (zh) * 2017-02-17 2018-08-28 浙江正泰电器股份有限公司 开关下座装配设备和装配方法
CN108453500B (zh) * 2017-02-17 2024-02-23 浙江正泰电器股份有限公司 开关下座装配设备和装配方法

Also Published As

Publication number Publication date
EP0777246A3 (fr) 1998-06-17
DE59609774D1 (de) 2002-11-14
DE19544702A1 (de) 1997-06-05
EP0777246B1 (fr) 2002-10-09

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