EP0698901B1 - Interrupteur à bouton poussoir - Google Patents

Interrupteur à bouton poussoir Download PDF

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Publication number
EP0698901B1
EP0698901B1 EP95110697A EP95110697A EP0698901B1 EP 0698901 B1 EP0698901 B1 EP 0698901B1 EP 95110697 A EP95110697 A EP 95110697A EP 95110697 A EP95110697 A EP 95110697A EP 0698901 B1 EP0698901 B1 EP 0698901B1
Authority
EP
European Patent Office
Prior art keywords
switching
spring
switch
plunger
slide
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
EP95110697A
Other languages
German (de)
English (en)
Other versions
EP0698901A1 (fr
Inventor
Herbert Dr. Bonrath
Gerhard Hochgesang
Ulrich Brüggemann
Hans-Karl Heil
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.)
Preh GmbH
Original Assignee
Preh 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 Preh GmbH filed Critical Preh GmbH
Publication of EP0698901A1 publication Critical patent/EP0698901A1/fr
Application granted granted Critical
Publication of EP0698901B1 publication Critical patent/EP0698901B1/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
    • 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
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/28—Snap-action arrangements depending upon deformation of elastic members using compression or extension of coil springs
    • 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

Definitions

  • the invention relates to a push button switch, in particular Power switch, with contacts fixed to the housing and at least one means a plunger movable contact bridge, with a spring switch, that between the plunger and a manually operated Switch slide is effective, and with a locking device for the Switch slide, the switch slide alternately when pressed goes into the on position and the off position.
  • Such switches are used to separate the electrical devices from the Consumer electronics, especially used in television sets.
  • Such a push button switch is known from DE-AS 1 590 503. It has been shown that such push button switches despite the Jump switch by means of the slide switch in an undesirable manner are manipulable so that the contact pressure is influenced. If at such push button switches the slide switch is not sufficient is operated quickly, so it is very slow and / or only partially is pushed through, despite the spring mechanism, that the contact pressure with which the contact bridge is fixed to the housing Contacts, goes to zero and maintain this state manually can be. This has an increase in contact resistance and consequently contact heating. So that's a increased contact wear. It can also become a Overheating of the push button switch come, not only that Functionality or lifespan reduced, but also a Forms fire hazard source.
  • a push button switch is known with a locking device that a backdrop and one engaging in this Has locking fingers as locking parts. To in the direction of actuation to counteract an overuse of its actuator one of the locking parts can be avoided by a spring means held.
  • the springs of the spring switch mechanism pass through their tensioned state when the slide switch moves. If the plunger begins to move, it is braked by the friction surface pairing before it reaches a point of transition, while the necessary contact pressure is maintained. The point of transition is only reached when the springs are in a stronger state of tension than without the deliberate delay in the movement of the plunger in front of the point of transition; the plunger also passes through the transition point more quickly. As a result, the switching point and thus the contact pressure can hardly be influenced by incorrect actuation of the slide switch. There is therefore no danger that the slide switch is manipulated and / or blocked in positions in which an increased contact resistance or arc leads to overheating and the associated increased wear or to a source of fire hazards.
  • the object of the invention is therefore based on the generic Push button switch, the switching behavior, especially with regard to the contact improve.
  • the above object is for a push button switch of the type mentioned by the features of claim 1.
  • a housing (1) of the push button switch has a base part (2) and a cover part (3). At the bottom part (2) there are two pairs of contacts (4.5 or 6.7) attached. Each pair of contacts (4.5 or 6.7) is one Contact bridge (8.9) assigned. It is a two-pole Counter.
  • the plunger (10) is at the bottom part (2) there is a plunger (10) in the direction of the longitudinal axis (L) slidably mounted.
  • the plunger (10) has two chambers on, in the compression springs (11,12) are inserted. These are supported on the one hand in each case on a pin (13) of the chamber and on the other hand the contact bridge (8 or 9).
  • the contact bridge (8 or 9) has for this an indentation (14).
  • the contact bridges (8,9) protrude on both sides of the longitudinal axis (L) through openings (15) in the plunger (10) in which they have play.
  • a spring-elastic tongue (16) is formed on the plunger (10), with a hump (17) formed on the base part (2) in the further interacts in a manner described in more detail below.
  • a first slope (18) the hump (17) and a first slope (19) of the tongue (16) form a first pair of friction surfaces.
  • a second slope (20) of the hump (17) and a second slope (21) of the tongue (16) form a second Friction surface pairing (see. Fig. 2, Fig. 4).
  • a slide switch (22) in the direction of Longitudinal axis (L) slidably mounted in the direction of the longitudinal axis (L) protrudes beyond the housing (1) and outside the housing (1) a receiving pin (23) for a push button, not shown forms.
  • An approximately heart-shaped backdrop (27) is formed on the slide switch (22), which is used to guide a locking lever (28).
  • the locking lever (28) engages in the profile with a hexagonal pin (29) Backdrop (27).
  • a notch (30) is provided on the outside of the base part (2), into which a curve (31) of the locking lever (28) engages.
  • the locking lever (28) also has a outside of the bottom part (2) Approach (32) which engages in a compression spring (33), which at the same time the return spring (33) for the slide switch (22).
  • the return spring (33) lies in a chamber (34) of the slide switch (22) and is held in this by a projection (35).
  • the locking lever (28) has on its return spring (33) facing Side a slope (36) so that the locking lever (28) the tendency has, stored in the notch (30) with its pin (29) in one Preferred direction to pivot - in Fig. 1, 3 to the right -.
  • the described push button switch is mechanically simple assemble. All parts can be viewed from the same side (In Fig. 1 perpendicular to the plane of the drawing, in Fig. 2 from the right in the bottom part 2) are inserted.
  • the springs described can be used mechanically. In the same direction it will Cover part (3) placed on the left in Figures 1, 3 Longitudinal axis (L) is shown. Pins formed on ribs (37) (38) and pin (39) engage in bores (40) of the base part (2)
  • a lower peripheral edge (41) of the base part (2) forms a support for a circuit board, not shown, with which the contacts (4 to 7) can be connected.
  • the contacts (4 to 7) are protected within the edge (41) so that no particles of can reach the outside of the contacts (4 to 7).
  • the Switch slide (22) by means of the return spring (33) against a stop (42) pressed.
  • the compression springs (26) are relatively relaxed and the plunger (10) is pressed by these against a stop (43).
  • the compression springs (11, 12) press the contact bridges (8, 9) against Edges (44) of the openings (15).
  • the contact bridges (8,9) are included spaced from the contacts (4.5 or 6.7).
  • the switch slide (22) moved in the direction of insertion (E).
  • the backdrop (27) moves with a guide section (47) opposite the pin (29) the locking lever (28).
  • the compression springs (26) tensioned, which go over their dead center.
  • the plunger (10) remains motionless.
  • the compression springs (26) act in the opposite direction, so that the plunger (10) now accelerates against the direction of insertion (E) becomes.
  • Movement strikes the second slope (21) of the tongue (16) on the second Slant (20) of the hump (17), these slants now as friction surfaces lie together.
  • the slide switch (22) For regular switching of the push button switch from the on position in the off position, the slide switch (22) actuated in the direction of insertion (E).
  • the slide switch (22) hits an edge (46) the bottom part (2).
  • the plunger (10) is still and held by the compression springs (26) so that its compression springs (11, 12) the necessary contact pressure between the contact bridges (8,9) and the Maintain contacts (4.5 or 6.7).
  • the slide switch (22) is then released, or in itself undesirably manipulated slowly returned. In both In cases it moves in under the action of the return spring (33) Direction (Z).
  • the compression springs (26) stretch up to theirs Dead center. Shortly before reaching the dead center begins to move the plunger (10) in direction (E). Because of the between the edges (44) and the contact bridges (8,9) existing free strokes (c) the contact bridges (8,9) from the edges (44) are not yet acted upon.
  • a free stroke (d) that is smaller than the free stroke (c).
  • the slide switch is in an intermediate position manipulated, in which the slopes (18, 19) are already against each other apply and the compression springs (26) in the area of their dead center then there is still no dangerous increase in the contact resistance between the contact bridges (8,9) and the Contacts (4.5 or 6.7) and also not the risk of manipulable Arcing.
  • the slope (19) parallel to the slope (18) and that to the slope (20) parallel slope (21) have different angles of inclination on, which are adapted to the described modes of operation.
  • the slopes (18, 19) are steeper than the slopes (20, 21) because the bevels (18,19) increase the effect of the springs (26) serve as energy storage and the slopes (20, 21) only braking should work.
  • the friction surface pairings (18, 19; 20, 21) can also be designed in this way be that they are not oblique to the direction of insertion (E), but parallel to lie to this. A resilient element is in this case unnecessary.
  • the surfaces leading to increased friction can then be designed with an appropriate surface structure be.
  • the locking lever (28) in the base part (2) is stored. He is then in this by means of an additional spring supported, its entrainment when moving in the direction of pull (Z) enables. It is also in reverse of the conditions described possible to store the locking lever (28) on the slide switch (22) and then to provide the backdrop (27) on the base part (2). If the locking lever (28) not the movement of the slide switch (22) when pulling in the direction of pull (Z) leaves free, the backdrop (27) can instead be mounted so that it participates in the movement of the locking lever (28) during such a movement.
  • FIG. This serves for example, the display of the respective switching state of the push button switch.
  • a first arm (50) of a shift rocker engages in this (51) a.
  • a second leg (52) of the shift rocker (51) has a circular opening (53) into which a pin (54) engages, which is formed on the extension (25) of the plunger (10).
  • the bolt (56) is on the cover part (3) (see Fig. 2) designed.
  • the contacts are in this intermediate state the contact bridges (8, 9) and the contacts (4, 5 and 6, 7) still so far apart that no arcing can occur.
  • this intermediate state there is play (S1) in the bearing recess (55) free, so that under the action of the now tensioned compression springs (26) (only one compression spring is shown in each of FIGS. 5 to 8) Jump plunger (10) against the locking in the manner described
  • the slide switch (22) snaps into the switch-on position shown in FIG. 7, in which the contacts are closed.

Landscapes

  • Push-Button Switches (AREA)
  • Switches With Compound Operations (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Claims (4)

  1. Interrupteur à bouton poussoir, en particulier interrupteur pour courant du réseau, comportant des contacts (4 à 7) solidaires du boítier et au moins un pont de contacts (8, 9) susceptible d'être déplacé au moyen d'un coulisseau à déclic (10), un mécanisme de commutation à déclic (24, 25, 26) qui agit entre le coulisseau à déclic (10) et un poussoir de commutation (22) susceptible d'être actionné manuellement, ainsi qu'un dispositif d'encliquetage (27, 28) destiné au poussoir de commutation (22), le poussoir de commutation (22) passant, lors de l'enfoncement (E), alternativement en position de contact et en position de coupure,
    caractérisé en ce que
    le mécanisme de commutation à déclic (24, 25, 26) est complété par une bascule de commutation (51) disposée entre le poussoir de commutation (22) et le coulisseau à déclic (10), en ce que la bascule de commutation (51) attaque d'une part le poussoir de commutation (22) et d'autre part le coulisseau à déclic (10) et est montée sur palier de façon solidaire du boítier, en ce que la bascule de commutation (51) entraíne, de force, au début du processus de mise en contact et du processus de rupture de contact, le coulisseau à déclic (10) dans la direction de mise en contact, ou dans la direction de rupture de contact sur une distance partielle de la course de contact (H), et en ce que le mécanisme de commutation à déclic (24, 25, 26) amène, au-delà de cette distance partielle, le coulisseau à déclic (10) dans la position de contact ou dans la position de coupure.
  2. Interrupteur à bouton poussoir selon la revendication 1,
    caractérisé en ce que
    le montage su palier solidaire du boítier est constitué de la bascule de commutation (51) et d'un axe (56) solidaire du boítier, des jeux, (S1, S2) existant entre l'axe (56) et l'évidement formant palier (55), aussi bien en position de contact qu'en position de coupure.
  3. Interrupteur à bouton poussoir selon la revendication 1 ou la revendication 2,
    caractérisé en ce que
    la bascule de commutation (51) présente une première branche (50) qui pénètre dans un évidement (49) du poussoir de commutation (22) et peut être mise en pivotement au moyen de celui-ci par le poussoir de commutation (22).
  4. Interrupteur à bouton poussoir selon l'une des revendications précédentes,
    caractérisé en ce que
    la bascule de commutation (51) présente une deuxième branche (52) qui attaque de façon pivotante le coulisseau à déclic (10), le coulisseau à déclic (10) pouvant être déplacé de façon linéaire au moyen de la branche (52).
EP95110697A 1994-08-10 1995-07-08 Interrupteur à bouton poussoir Expired - Lifetime EP0698901B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4428285A DE4428285C1 (de) 1994-08-10 1994-08-10 Drucktastenschalter
DE4428285 1994-08-10

Publications (2)

Publication Number Publication Date
EP0698901A1 EP0698901A1 (fr) 1996-02-28
EP0698901B1 true EP0698901B1 (fr) 1998-03-18

Family

ID=6525339

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95110697A Expired - Lifetime EP0698901B1 (fr) 1994-08-10 1995-07-08 Interrupteur à bouton poussoir

Country Status (5)

Country Link
US (1) US5532444A (fr)
EP (1) EP0698901B1 (fr)
JP (1) JPH08102236A (fr)
DE (1) DE4428285C1 (fr)
ES (1) ES2116012T3 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5821490A (en) * 1996-07-26 1998-10-13 Yazaki Corporation Push button switch module
FR2785441B1 (fr) * 1998-11-03 2001-01-26 Crouzet Automatismes Interrupteur a rupture brusque et a ouverture forcee avec tolerance de mise en place amelioree
US6518528B2 (en) 2001-04-11 2003-02-11 Rockwell Automation Technologies, Inc. Limit switch with direct opening action
US6680449B1 (en) * 2002-08-07 2004-01-20 Ming-Shan Wang Press button switch
US6674033B1 (en) * 2002-08-21 2004-01-06 Ming-Shan Wang Press button type safety switch
JP4280144B2 (ja) * 2003-10-21 2009-06-17 株式会社ニフコ スイッチ付ラッチ
JP5095691B2 (ja) * 2008-10-27 2012-12-12 富士電機機器制御株式会社 押しボタンスイッチ
CN101763970B (zh) * 2010-01-11 2012-07-18 浙江正泰建筑电器有限公司 一种自复位机构和自复位开关
CN103681057A (zh) * 2012-09-21 2014-03-26 深圳市海洋王照明工程有限公司 一种应急灯具的开关组件结构
CN104392850A (zh) * 2014-11-26 2015-03-04 宁波嘉林电子有限公司 一种多功能线路切换开关
US20230420194A1 (en) * 2022-06-24 2023-12-28 Eaton Intelligent Power Limited Switch with a movable contact and an elastic assembly

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1590503B1 (de) * 1966-12-09 1970-11-19 Schoeller & Co Elektrotech Drucktastenschalter mit Momentsprungwerk
DE2031364C3 (de) * 1970-06-25 1975-02-27 J. & J. Marquardt, 7201 Rietheim Schnappschalter
JPS52142667U (fr) * 1976-04-07 1977-10-28
DE2839108C3 (de) * 1978-09-08 1981-10-22 Rudolf Schadow Gmbh, 1000 Berlin Drucktasten-Schnappschalter
JPS5862519U (ja) * 1981-10-23 1983-04-27 アルプス電気株式会社 スイツチ
DE3150046C2 (de) * 1981-12-17 1984-05-10 Wilhelm Ruf KG, 8000 München Elektrischer Schiebeschalter
DE3644437C1 (en) 1986-12-24 1988-05-11 Kostal Leopold Gmbh & Co Kg Electrical push-button switch
US5047628A (en) * 1990-03-26 1991-09-10 Illinois Tool Works Inc. Hybrid switch with solid-state condition
DE9101126U1 (de) * 1991-02-01 1992-06-04 Klöckner-Moeller GmbH, 53115 Bonn Schaltgerät mit Sprungverhalten
DE4301213C1 (de) * 1993-01-19 1994-05-19 Preh Elektro Feinmechanik Drucktastenschalter
DE4301192C1 (de) * 1993-01-19 1994-02-03 Preh Elektro Feinmechanik Drucktastenschalter

Also Published As

Publication number Publication date
DE4428285C1 (de) 1995-07-06
US5532444A (en) 1996-07-02
ES2116012T3 (es) 1998-07-01
EP0698901A1 (fr) 1996-02-28
JPH08102236A (ja) 1996-04-16

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