EP0261489B1 - Commutateur électrique - Google Patents

Commutateur électrique Download PDF

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Publication number
EP0261489B1
EP0261489B1 EP87113043A EP87113043A EP0261489B1 EP 0261489 B1 EP0261489 B1 EP 0261489B1 EP 87113043 A EP87113043 A EP 87113043A EP 87113043 A EP87113043 A EP 87113043A EP 0261489 B1 EP0261489 B1 EP 0261489B1
Authority
EP
European Patent Office
Prior art keywords
base
casing
switch
switch according
plunger
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
EP87113043A
Other languages
German (de)
English (en)
Other versions
EP0261489A2 (fr
EP0261489A3 (en
Inventor
Günther Marquardt
Albert King
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 EP0261489A2 publication Critical patent/EP0261489A2/fr
Publication of EP0261489A3 publication Critical patent/EP0261489A3/de
Application granted granted Critical
Publication of EP0261489B1 publication Critical patent/EP0261489B1/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
    • H01H13/04—Cases; Covers
    • H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
    • H01H9/041—Casings hermetically closed by a diaphragm through which passes an actuating member

Definitions

  • the invention relates to an electrical switch according to the preamble of claim 1.
  • Such an electrical switch is known from FR-A-1 402 906.
  • the switch described therein has a seal for water sealing between a base part and the subsequent housing, and the base is welded or glued to the housing.
  • the assembly direction is to be understood as the direction in which the base can be inserted into the assembly opening for assembly.
  • the dependent claims 2 to 12 each characterize advantageous forms of training thereof.
  • both the switch housing and the base can be simply designed components and an O-ring can be used as a sealing element, which is a conventional element of sealing technology.
  • the switching mechanism can be easily mounted outside the housing, which not only simplifies production, but also accelerates it and thus makes it cheaper.
  • the connection elements of the switch are also protected against moisture by the edge of the housing that extends freely beyond the base.
  • the base carrying the O-ring is pushed into the housing until the sealing ring arrives at the shoulder of the inner surface of the housing and is compressed there to a sufficient extent.
  • the relative position between base and housing must be secured by a suitable measure so that the sealing ring does not relax and the sealing effect can be lost.
  • the sealing ring engage in a circumferential outer groove or at least in mutually opposite undercuts or the like of the base. This secures the position of the sealing ring on the base before assembly and at the same time ensures proper seating of the sealing ring on the housing sealing surface.
  • a particularly preferred variant of the invention is characterized by at least one, but preferably two wedge-shaped latching elements on two opposite surfaces of the base, each of which can be snapped into a window-like recess or a breakthrough of the respectively associated resiliently evacuable housing wall.
  • the latching elements can also be resilient instead of the wall.
  • the wedge-shaped elements are arranged so that the wedge tip leads ahead during assembly. Due to the resilient design of the housing wall, each latching element can be used at the end of the insertion movement, i.e. when the sealing ring is sufficiently tensioned enter its window-like recess and thereby effect the locking of the base with the housing in at least two places.
  • Essential elements of the switch according to the invention are the base 1 with the switching mechanism 2 and the switch housing 3.
  • the latter is provided with a mounting opening 4 into which the base 1 with the switching mechanism 2 is pushed in the direction of the arrow 5.
  • the base 1 closes the assembly opening 4 to the outside, and a good seal is already achieved.
  • the switch housing 3 has an essentially cup-shaped shape, the inner contour being stepped twice.
  • the base 1 can be brought into contact with the first paragraph, but this is not absolutely necessary.
  • a sealing element 8 bears against the second paragraph, which is held on the base 1 and is pressed by this in the final assembly position against the second paragraph.
  • This sealing element is preferably an O-ring. It ensures that the housing interior 9 accommodating the switching mechanism 2 is watertightly sealed from the outside.
  • the sealing ring 8 is spring-locked into a circumferential groove on the inside of the base 1 or, as in the exemplary embodiment, two mutually opposite, groove-like undercuts 10 and 11. The latter are located on the inner end of the base 1 in the direction of assembly, which is also designed as a centering element 12.
  • a positive connection is provided in addition to the non-positive connection or instead of the non-positive connection between base 1 and housing 3.
  • the mutually opposite housing walls 13 and 14 are provided with at least one, but preferably two window-like recesses 15 at the same height and equidistant from the housing edge.
  • the wall 13 In order to enable this latching, the wall 13 must be able to deflect resiliently in the direction of the arrow 18. The same applies analogously to the opposite wall 14, which must dodge from right to left.
  • each recess is arranged in front of a recess 15 and its height increases from the outside inwards steadily. It ends at the window-like recess 15 or shortly before.
  • the actuator 21 of the switch is designed as a plunger and can be pressed in in the direction of arrow 22.
  • the switch housing still needs a cross-section corresponding to the plunger Tappet guide 23.
  • the latter is sealed off from the switch housing 3 by a sleeve 24. It is resilient to be able to take part in the tappet movement.
  • Both ends of the cuff are thickened by a bead.
  • One cuff end 25 engages with its bead in an annular groove 26 at the outer end of the tappet.
  • the other cuff end 27 projects into a housing groove 28 which is open at the edge in the longitudinal direction of the tappet.
  • the actuating member 21 in the exemplary embodiment is not depressed directly by hand, but with the aid of a one-armed lever 29 which is pivotably mounted on the switch housing.
  • the elastic property of the sleeve 24 can additionally be used in the sense of a return spring.
  • the inner end of the actuating member 21 designed as a plunger protrudes slightly into the interior of the housing.
  • a slide bar 31 which is wedge-shaped at its outward end. Its height corresponds approximately to the amount by which the plunger end 30 projects into the housing interior 9.
  • a spring-elastic, tongue-like holding element 32 slides simultaneously over the two wedge-shaped Ends of the slide bars 31 and is thereby lifted over the inner plunger end 31. It is supported in the end position on this tappet end and / or the thicker ends of the two slide rails.
  • the end position can be seen in Fig. 1.
  • the holding element 32 belongs to the switching mechanism 2. Its inner end is bent in a U-shape.
  • the contact arm 33 carries the movable contact (s) 37, which interact with the fixed contacts 38 and 39.
  • the switch is a changeover switch.
  • Each of the two fixed contacts can be replaced by a stop that only takes on a mechanical but no electrical function.
  • the switch is provided with connecting elements 40 and 41 which pass through the base 1, their inner ends carrying the fixed contacts 38 and 39, respectively.
  • the switch housing 3 is dimensioned such that the edge drawn freely beyond the base 1 surrounds these connection elements 40 and 41 and thereby protects them.
  • the switch housing 2 is further provided with a test bore 42.
  • a test bore 42 In the exemplary embodiment, it is somewhat expanded towards the outside and narrowed at its inner end. The tightness of the connection between the base 1 and check the switch housing 3. After this test, the bore 42 is closed with the aid of a ball 43, which is pressed into the central part of the test bore 42. The resilient property of the housing material is sufficient for secure sealing at this point. Otherwise, the test bore 42 is located centrally on a tubular extension 44 of the switch housing 3.

Landscapes

  • Push-Button Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Claims (12)

  1. Commutateur électrique, avec un boîtier de commutateur (3) qui est réalisé d'une pièce et présente au plus deux et notamment une seule ouverture de montage (4) pouvant être obturée par un socle (1), qui peut être enfoncé dans cette ouverture en vue du montage et loge un mécanisme de commutation (2) présentant au moins un contact fixe, et au moins un contact mobile coopérant avec le contact fixe, ainsi que des éléments de connexion (40, 41) dépassant du socle (1), une partie de l'espace intérieur (9) du boîtier étant hermétiquement fermée vis-à-vis de l'atmosphère au moyen d'au moins un anneau d'étanchéité (8), notamment un anneau torique, qui est monté entre le socle (1) et le boîtier de commutateur (2), est porté par le socle (1) sur le côté intérieur de ce dernier et peut être pressé contre une face intérieure (7) du boîtier qui est tournée à l'encontre du sens de montage (5) du socle (1), et un organe d'actionnement (21) étant monté sur le boîtier de commutateur (3), caractérisé en ce que le boîtier de commutateur (3) présente une forme de pot avec un bord qui s'étend librement au-delà du socle (1) et entoure les éléments de connexion (40, 41), de sorte que ces derniers se trouvent à l'intérieur de la partie du boîtier (3) ouverte vers l'atmosphère, en ce que le contour intérieur du boîtier de commutateur (3) est étagé par au moins un gradin dans la région de transition avec le bord précité, gradin contre lequel s'applique le socle (1) ou le ou les anneaux d'étanchéité (8), et en ce que le socle (1) est maintenu à l'intérieur du boîtier (3) au moyen d'une liaison par friction et/ou par complémentarité de forme, dans une position comprimant chaque anneau d'étanchéité (8).
  2. Commutateur selon la revendication 1, caractérisé en ce que l'anneau d'étanchéité (8) s'engage dans une rainure extérieure entourante ou au moins dans des contre-dépouilles en vis-à-vis (10, 11) du socle (1).
  3. Commutateur selon la revendication 2, caractérisé en ce que l'extrémité intérieure du socle (1) est configurée en élément de centrage (12).
  4. Commutateur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'ouverture de montage (4) obturée par le socle (1) présente une section non ronde, notamment rectangulaire, et au moins la partie du socle (1) qui pénètre dans l'ouverture de montage (4) est adaptée aux dimensions de section de l'ouverture de montage.
  5. Commutateur selon l'une quelconque des revendications précédentes, caractérisé en ce que le socle (1) et les parois (13, 14) du boîtier peuvent être mutuellement assemblés en enclenchement par complémentarité de forme, au moyen d'appendices (16), notamment du socle (1), qui peuvent être enclenchés dans des évidements (15).
  6. Commutateur selon la revendication 5, caractérisé par au moins un appendice respectif, mais de préférence deux appendices respectifs cunéiformes (16) sur deux faces opposées du socle (1), qui peuvent chacun être enclenchés dans un évidement du genre fenêtre (15) ou un ajour de la paroi de boîtier (13, 14) respectivement associée, capable de céder élastiquement.
  7. Commutateur selon la revendication 6, caractérisé par une rainure de guidage respective (19, 20) pour chaque appendice (16), laquelle s'étend dans le sens de montage (5) du socle (1), est pratiquée devant l'évidement (15) ou l'ajour associé, diminue de hauteur vers l'intérieur du boîtier et se termine dans la région de l'évidement (15) ou de l'ajour.
  8. Commutateur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'organe d'actionnement (21) est réalisé en forme de poussoir et étanché vis-à-vis du boîtier (3).
  9. Commutateur selon la revendication 8, caractérisé en ce que le poussoir (21) est étanché vis-à-vis du boîtier (3) au moyen d'une manchette élastique (24), une extrémité (25), notamment épaissie, de la manchette étant enclenchée dans une rainure (26) du poussoir concentrique (21), et l'autre extrémité (27), de préférence également épaissie, de la manchette s'engageant dans une rainure (28) du boîtier, qui présente un bord ouvert dans le sens longitudinal du poussoir (21) mais peut cependant être obturée.
  10. Commutateur selon la revendication 8 ou 9, caractérisé en ce que le poussoir (21), dans sa position de repos, dépasse légèrement à l'intérieur (9) du boîtier, et un rebord de glissement (31) au moins en partie cunéiforme se trouve de chaque côté de cette extrémité (30) du poussoir, rebord sur lequel repose un élément de retenue élastique (32) du genre languette, pour la liaison articulée avec une extrémité d'un ressort à déclic (36) du mécanisme de commutation (2) conçu comme mécanisme à déclic, l'autre extrémité du ressort à déclic (36) étant reliée de manière articulée à l'extrémité libre d'un bras de contact (33).
  11. Commutateur selon l'une quelconque des revendications précédentes, caractérisé par un trou de contrôle obturable (42) du boîtier (3).
  12. Commutateur selon la revendication 11, caractérisé en ce que le trou de contrôle (42) peut être obturé au moyen d'une bille (43) qui peut y être enfoncée.
EP87113043A 1986-09-26 1987-09-07 Commutateur électrique Expired - Lifetime EP0261489B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8625691U DE8625691U1 (de) 1986-09-26 1986-09-26 Elektrischer Schalter
DE8625691U 1986-09-26

Publications (3)

Publication Number Publication Date
EP0261489A2 EP0261489A2 (fr) 1988-03-30
EP0261489A3 EP0261489A3 (en) 1990-01-03
EP0261489B1 true EP0261489B1 (fr) 1993-05-19

Family

ID=6798639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87113043A Expired - Lifetime EP0261489B1 (fr) 1986-09-26 1987-09-07 Commutateur électrique

Country Status (2)

Country Link
EP (1) EP0261489B1 (fr)
DE (2) DE8625691U1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0260659A3 (fr) * 1986-09-16 1988-07-20 OMRON Corporation Micro-interrupteur
JPS6429727U (fr) * 1987-08-14 1989-02-22
JPS6429728U (fr) * 1987-08-14 1989-02-22
JPS6429726U (fr) * 1987-08-14 1989-02-22
DE8904332U1 (de) * 1989-04-07 1989-06-22 Marquardt GmbH, 7207 Rietheim-Weilheim Elektrischer Schalter
DE8911482U1 (de) * 1989-09-27 1989-12-07 Priesemuth, Wolfgang, Dipl.-Ing., 25524 Breitenburg Schalter
DE9004490U1 (de) * 1990-04-12 1991-05-29 Cherry Mikroschalter Gmbh, 8572 Auerbach Steckschalter
DE9409268U1 (de) * 1994-06-08 1994-09-08 Burgess GmbH, 26127 Oldenburg Mikroschalter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0130500A2 (fr) * 1983-07-02 1985-01-09 Alcatel N.V. Relais électromagnétique étanche

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1402906A (fr) * 1964-03-12 1965-06-18 Crouzet Sa Dispositif permettant de rendre hermétique les appareils tels que les contacteurs àaction brusque dont l'enceinte est en matière plastique
DE2356989A1 (de) * 1973-11-15 1975-05-22 Marquardt J & J Schnappschalter
CH656019A5 (de) * 1982-04-19 1986-05-30 Uniswitch Ag Drucktastenschalter oder drucktaster.
IT206270Z2 (it) * 1985-10-09 1987-07-20 Vimercati Off Mec Interruttore stagno a pulsante

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0130500A2 (fr) * 1983-07-02 1985-01-09 Alcatel N.V. Relais électromagnétique étanche

Also Published As

Publication number Publication date
DE8625691U1 (de) 1986-12-18
EP0261489A2 (fr) 1988-03-30
EP0261489A3 (en) 1990-01-03
DE3785905D1 (de) 1993-06-24

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