EP0553694B1 - Elektrischer Schalter - Google Patents

Elektrischer Schalter Download PDF

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Publication number
EP0553694B1
EP0553694B1 EP93100757A EP93100757A EP0553694B1 EP 0553694 B1 EP0553694 B1 EP 0553694B1 EP 93100757 A EP93100757 A EP 93100757A EP 93100757 A EP93100757 A EP 93100757A EP 0553694 B1 EP0553694 B1 EP 0553694B1
Authority
EP
European Patent Office
Prior art keywords
electrical switch
actuating member
switch according
pins
shaped
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.)
Expired - Lifetime
Application number
EP93100757A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0553694A2 (de
EP0553694A3 (show.php
Inventor
Thomas Mejerl
Franz Vozeler-Pape
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 EP0553694A2 publication Critical patent/EP0553694A2/de
Publication of EP0553694A3 publication Critical patent/EP0553694A3/xx
Application granted granted Critical
Publication of EP0553694B1 publication Critical patent/EP0553694B1/de
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
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/56—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force
    • H01H13/562—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force making use of a heart shaped cam
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
    • 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
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member

Definitions

  • the invention relates to an electrical switch according to the preamble of claim 1 (see DE-A-27 15 063).
  • Such electrical switches are used to switch electrical devices on and off by pressing them in each case, the actuating element being locked in the respective switching position.
  • these switches for household appliances such as vacuum cleaners and the like. used.
  • Such electrical switches have become known from DE-A-27 15 063 and DE-A-22 17 690, the actuating member of which is movably guided in the housing can be brought into two detent positions by means of pressure. In the first latching position, the contact bridges arranged on the actuating member do not touch the normally closed contacts in the housing, so that the switch is in the off position, while in the second latching position, the contact bridges touch the normally closed contacts, with the switch being in the on position.
  • These electrical switches have a heart-shaped guide curve in which a pin engages in order to determine the locking positions. Another pin engages in another guide curve, whereby the latching positions of the switch are determined by the interaction of the pins and the guide curves.
  • the further guide curve is designed as an oblique control curve and both guide curves are located on the same side of the housing.
  • the two pins engaging in the guide curves are coupled to one another by means of a connecting element, so that when the actuating member moves, the connecting element can be elastically deformed due to the guide of the pins in the sense of a restoring force on the pin.
  • the invention has for its object to develop the switch mentioned so that a secure locking in the on and off position is guaranteed and no switching errors occur.
  • the connecting element coupling the two pins engaging in the guide curve consists of a U-shaped bracket which is inserted into a corresponding receptacle in the base of the housing.
  • an additional spring element which is otherwise required and serves as a connecting element, can be dispensed with.
  • the connections for the switch are provided with a U-shaped part which serves as a normally closed contact surface.
  • the U-shaped part is attached to appropriately shaped bars in the base.
  • the U-shaped part can be arranged in two different positions, so that the connections can optionally emerge from the housing both downwards and to the side.
  • the switch has a very small overall volume and nevertheless has a very reliable switching behavior which completely excludes switching errors.
  • the actuator is always positioned vertically even in the on position, which prevents jamming with certainty.
  • the possibility of arranging the connections both downwards and laterally creates a wide range of possible uses for the switch according to the invention, depending on the desired purpose.
  • the electrical switch 1 which can be actuated by pressure and is designed as a two-pole on-off switch and can be latched in the on and off position has a housing 2 and a base 5 which carries the electrical connections 12 4, webs 44 shown in more detail in FIG. 4 are formed with guide grooves, into which corresponding counterparts 45 engage in the interior of the housing 2.
  • the housing 2 can be pushed onto the base 5 during the assembly of the switch 1 and detachably fastened to the base 5 by means of snap or snap connections known per se.
  • the actuating member 4 can be moved against the pressure of a spring 6, which is located in a receptacle 7 arranged on the base 5.
  • two contact bridges 8 equipped with switch contacts 10 are arranged elastically by means of springs 9.
  • the switching contacts 10 of the contact bridges 8 can be brought into contact with the normally closed contact surfaces 11 of the electrical connections 12 by moving the actuating member 4 when pressure is exerted in the direction of arrow 46 (see FIG. 1), as a result of which an electrical connection between the connections 12 and thus the inputs Position of the switch 1 is made.
  • the switching contacts 10 of the contact bridges 8 When the actuator 4 is in the off position of the electrical switch 1 shown in FIGS. 2 and 3, the switching contacts 10 of the contact bridges 8 have a certain distance from the rest contact surfaces 11 due to the spring pressure of the spring 6, so that the electrical connection is interrupted is.
  • the electrical switch 1 has a detent position in the off and in the on position.
  • the locking position in the off position is determined by the fact that the actuating element 4 with the shoulders 13 rests on corresponding surfaces of the extension 3 inside the housing 2 due to the pressure of the spring 6.
  • two guide curves 14, 15 having different shapes are attached to the actuating member 4 on opposite surfaces that run parallel to the direction of movement.
  • the first guide curve 14 consists of a surface 16 raised on the actuating member 4, the outer contour of which has the shape of a heart, which is why the surface 16 is also called the switching heart.
  • the second guide curve 15 is formed by a surface 17 recessed on the actuator 4, in the middle of which there is an elevated, triangular surface 18, which can be seen in the comparison of FIGS. 3 and 6.
  • the inner contour of the guide curve 15 is essentially heart-shaped.
  • a pin 19, 20 engages in each of the two guide curves 14 and 15. These two pins 19, 20 are coupled to one another by a connecting element 21.
  • the connecting element 21 has the shape of a U-shaped bracket and is inserted in a receptacle 22 on the base 5.
  • the pins 19, 20 and the connecting element 21 can be produced in one piece by bending a spring wire. A round cross-section can expediently be selected for the spring wire, but any other cross-sectional shape is also conceivable.
  • FIGS. 7 to 13 The mode of operation of the switch 1 according to the invention is shown in more detail in FIGS. 7 to 13, in which the guide curve 15 can be seen in plan view and the guide curve 14, which is hidden on the opposite surface of the actuating member 4, is shown in dashed lines.
  • the two pins 19, 20 are through Circles shown, the connecting element 21 is omitted for reasons of clarity.
  • the pin 19 comes into contact with the guide curve 14, which is formed by the outer contour of the raised surface 16, and becomes corresponding to the obliquely upwardly extending outer contour deflected in the direction of arrow 23. Due to the connecting element 21, the pin 20 is deflected equally and finally, as can be seen in FIG. 8, touches the inner contour of the guide curve 15. Approximately in this position of the pins 19, 20, the switching contacts 10 of the contact bridges 8 come into contact with the normally closed contact surfaces 11 of the electrical connections (see also Fig. 2), whereby the electrical connection is made.
  • the pin 19 is deflected a little further in the oblique direction 23 and finally likewise is guided vertically upwards along the outer contour of the guide curve 14 according to the arrow 25.
  • the two pins 19, 20 are deflected differently due to the different shape of the two guide curves 14, 15, so that the connecting element 21 is elastically deformed in this movement section.
  • the connecting element 21, which is designed as a U-shaped bracket in the present exemplary embodiment, is subjected to torsion.
  • the springs 9 of the contact bridges 8 are tensioned at the same time, since the switch contacts 10 are already resting on the normally closed contact surfaces 11.
  • the two pins 19, 20 finally reach the position shown in FIG. 9. While the pin 20 is moving there in the direction of the arrow 26 into the upper channel 34, the pin 19, due to the tension caused by the torsion of the U-shaped bracket, snaps back in the direction of the arrow 27 to the deflection corresponding to the pin 20 , because then the forced movement is ended by the guide curve 14. The downward movement of the actuator 4 is finally ended by the stop of the lower surface 35 of the actuator 4 on the base 5 (see also Fig. 5).
  • the actuating member 4 is pressed again in the direction of the arrow 46 in FIG. 1, as a result of which the pin 19 along the vertically upwardly extending outer contour of the guide curve 14 in the direction of the arrow 29 is performed, as can be seen in Fig. 11.
  • the pin 20 is guided vertically upwards until it abuts against the inner contour of the guide curve 15 and there along obliquely upwards in the direction of the arrow 30.
  • the connecting element 21 is in turn elastically deformed.
  • the U-shaped bracket is subjected to torsion, since the pin 20 is deflected further in the direction of the arrow 30 than the pin 19 guided in the vertical direction 29, as shown in FIG. 12. If the upper point 37 of the guide curve 14 is reached by the pin 19, this snaps due to the Torsional tension in the same position as the pin 20. The electrical connection is still in this position, ie the switch contacts 10 are still in contact with the normally closed contact surfaces 11. At the same time, the movement of the actuator 4 in the direction of arrow 46 in this position is again by contact the lower surface 35 terminated on the base 5.
  • such a switch requires a pressure point that is clearly noticeable when it is switched on.
  • This can be realized by the distance between the inner contour of the guide curve 15 and the outer contour of the triangular surface 18 at the constriction lying in the switch-on path through which the pin 20 travels from the detent position corresponding to the off position to the detent position corresponding to the on position 39, which can be seen in more detail in FIG. 6, is the same or slightly smaller than the cross-sectional width or the diameter with a round cross-section of the pin 20. If the pin 20 then reaches the constriction 39, it must be brought through the constriction 39 by means of increased pressure on the actuating member 4. After the pin 20 has passed the constriction 39, a lower pressure is again sufficient for the further movement of the actuating member 4, so that the typical pressure point behavior is present.
  • the electrical connections 12 are provided with a U-shaped part 40 which is widened compared to the connection 12, the connection 12 being bent off from one leg of the U.
  • the rest contact surfaces 11 are formed by the other leg of the U's.
  • the U-shaped part 40 is attached to a correspondingly shaped web 41 of the base 5. This makes it possible to attach the U-shaped part 40 so that the connections 12 protrude vertically downward from the housing 2 in order to be connected to the connecting conductor tracks on a printed circuit board by means of plated-through holes.
  • the U-shaped part 40 can also be attached to the web 41 as shown in FIG. 14 can be seen.
  • connections 12 then protrude laterally at the bottom of the housing 2, which makes this switch particularly suitable for surface mounting on a printed circuit board.
  • the rest contact surfaces 11 are formed by the base of the U. It should also be emphasized that there is no need for corresponding holes in the housing 2 for the implementation of the connections 12, since these protrude from the switch 1 on the base 5, which closes the housing 2 at the bottom.
  • connection 42 consists of a direct extension of a leg of the U-shaped part 43, which is attached to the web 41. Connections 42 designed in this way are particularly simple to manufacture in terms of production technology. As can still be seen in FIG. 16, the connections 42 of this variant have essentially the same width as the U-shaped part 43.
  • the invention is not limited to the exemplary embodiment described. It is also within the scope of the invention to arrange the two guide curves instead of on the actuating member on the inner surfaces of the housing and the connecting element for the pins on the actuating member. It is important in the exemplary embodiment, however, that the two guide curves have a different shape, as a result of which the connecting element coupling the two pins is elastically deformed in sections during the movement of the actuating member. This elastic deformation creates a force exerted the respective pin, whereby this, as described with reference to FIGS. 7 to 13, is moved in the direction of the switching path, so that incorrect switching is excluded with certainty.

Landscapes

  • Push-Button Switches (AREA)
  • Slide Switches (AREA)
EP93100757A 1992-01-28 1993-01-20 Elektrischer Schalter Expired - Lifetime EP0553694B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4202214 1992-01-28
DE4202214A DE4202214A1 (de) 1992-01-28 1992-01-28 Elektrischer schalter

Publications (3)

Publication Number Publication Date
EP0553694A2 EP0553694A2 (de) 1993-08-04
EP0553694A3 EP0553694A3 (show.php) 1994-01-05
EP0553694B1 true EP0553694B1 (de) 1996-04-24

Family

ID=6450367

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93100757A Expired - Lifetime EP0553694B1 (de) 1992-01-28 1993-01-20 Elektrischer Schalter

Country Status (5)

Country Link
US (1) US5369237A (show.php)
EP (1) EP0553694B1 (show.php)
JP (1) JP2544072B2 (show.php)
DE (2) DE4202214A1 (show.php)
ES (1) ES2086794T3 (show.php)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5579903A (en) * 1995-03-06 1996-12-03 United Technologies Automotive, Inc. Cam follower assembly for use in a latching switch
DE19544702A1 (de) * 1995-11-30 1997-06-05 Marquardt Gmbh Elektrischer Schalter
DE19548600B4 (de) * 1995-12-23 2006-09-28 Marquardt Gmbh Elektrischer Schalter
US5749458A (en) * 1996-02-23 1998-05-12 Auto Splice Systems, Inc. Miniature jumper switch with wire contact maker
DE19603921C1 (de) * 1996-02-03 1997-04-24 Schadow Rudolf Gmbh Druckschalter
US5620086A (en) * 1996-02-23 1997-04-15 Autosplice Systems, Inc. Miniature jumper switch
FR2787627B1 (fr) * 1998-12-18 2001-03-09 Sc2N Sa Commutateur de commande electrique de vehicule automobile
JP2000331563A (ja) 1999-05-24 2000-11-30 Alps Electric Co Ltd 押釦スイッチ
DE19960695A1 (de) * 1999-12-16 2001-06-21 Moeller Gmbh Drucktaste für Rast- und Tastfunktion
EP1148523A1 (fr) * 2000-04-17 2001-10-24 Sc2N Commutateur de commande électrique de véhicule automobile
TW454932U (en) * 2000-11-07 2001-09-11 Shin Chin Ind Co Ltd Pressing button switch
US6552643B2 (en) * 2000-12-11 2003-04-22 Shang-Hao Chen Structure of a depress-type safety switch
DE10250262A1 (de) 2001-11-02 2003-05-15 Marquardt Gmbh Elektrischer Schalter
ES2190754B1 (es) * 2001-12-21 2005-09-01 Angel Iglesias, S.A Pulsador de doble paso.
DE10254992B4 (de) * 2002-11-26 2013-03-28 Marquardt Gmbh Elektrischer Schalter
US6737598B1 (en) 2002-12-11 2004-05-18 Tyco Electronics Canada, Ltd. Electrical switch with limited contact arcing
JP4323183B2 (ja) * 2003-02-19 2009-09-02 アルプス電気株式会社 スイッチ装置
JP4167091B2 (ja) * 2003-02-27 2008-10-15 株式会社ニフコ スイッチ付ラッチ
DE10321857B4 (de) * 2003-05-15 2017-03-23 Marquardt Gmbh Elektrischer Schalter
ITFI20030062U1 (it) * 2003-06-03 2004-12-04 Lucia Alfonso De Interruttore
DE102006010811B4 (de) * 2006-03-07 2018-03-01 Huf Hülsbeck & Fürst Gmbh & Co. Kg Schaltelement und Betätigungsvorrichtung damit sowie Türgriff mit dieser Betätigungsvorrichtung
DE102006041451B4 (de) * 2006-09-04 2009-01-08 Siemens Ag Schaltgerät und Hilfskontaktblock zur Erweiterung eines Schaltgerätes
EP1921642A1 (de) * 2006-11-10 2008-05-14 SAIA-Burgess Oldenburg GmbH & Co. KG Elektrischer Schalter mit zumindest einem Gehäuse
DE102009037795A1 (de) 2008-08-26 2010-03-04 Marquardt Gmbh Elektrischer Schalter
CN101901704B (zh) * 2010-06-30 2014-02-26 海洋王照明科技股份有限公司 一种断电保护装置及使用该断电保护装置的照明装置
EP2416340A1 (en) * 2010-08-02 2012-02-08 Eaton Industries GmbH Switching device with a geometric element for impact of the movement of the movable contact element
DE102011110683A1 (de) 2010-08-27 2012-05-03 Marquardt Mechatronik Gmbh Elektrischer Schalter
CN101980346A (zh) * 2010-11-16 2011-02-23 张家港华峰电接插元件有限公司 一种按动式开关
JP5727862B2 (ja) * 2011-05-19 2015-06-03 富士電機機器制御株式会社 電磁接触器

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JPH01119132U (show.php) * 1988-02-08 1989-08-11

Also Published As

Publication number Publication date
JPH0684426A (ja) 1994-03-25
US5369237A (en) 1994-11-29
ES2086794T3 (es) 1996-07-01
EP0553694A2 (de) 1993-08-04
JP2544072B2 (ja) 1996-10-16
EP0553694A3 (show.php) 1994-01-05
DE4202214A1 (de) 1993-07-29
DE59302300D1 (de) 1996-05-30

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