EP0890966B1 - Push button type electric control device in particular for printed circuits - Google Patents

Push button type electric control device in particular for printed circuits Download PDF

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Publication number
EP0890966B1
EP0890966B1 EP19980112540 EP98112540A EP0890966B1 EP 0890966 B1 EP0890966 B1 EP 0890966B1 EP 19980112540 EP19980112540 EP 19980112540 EP 98112540 A EP98112540 A EP 98112540A EP 0890966 B1 EP0890966 B1 EP 0890966B1
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EP
European Patent Office
Prior art keywords
fact
printed circuit
circuit board
frame
face
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
EP19980112540
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German (de)
French (fr)
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EP0890966A1 (en
EP0890966B9 (en
Inventor
Marc Salesse
André Dherte
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Individual
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Individual
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Publication of EP0890966B1 publication Critical patent/EP0890966B1/en
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Publication of EP0890966B9 publication Critical patent/EP0890966B9/en
Anticipated expiration legal-status Critical
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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
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/7006—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard comprising a separate movable contact element for each switch site, all other elements being integrated in layers

Definitions

  • the invention relates to a control device electric, push button type, especially for printed circuits.
  • Control devices of this type which are known, have the disadvantage of being bulky because they use as push buttons elements in form of two-arm levers, which are pivotally mounted around an axis supported by a fixed structure, between a rest position and a control position, at against a return spring. So the advantage of small footprint provided by printed circuits, is lost due to the bulky control device.
  • a device according to the preamble of claim 1 is known from document DE 91 12 597 U.
  • the object of the present invention is to provide a control device, of the type indicated above, which does not does not have the disadvantage of the state of the art and allows the production of printed circuit assemblies and small control device.
  • control device according to the invention is provided as defined in claim 1.
  • a diode is associated with the element of cup-shaped control and plate and sheet aforementioned positioning respectively have a hole and a transparent area to indicate the operator of the control device the state of the element control.
  • reference numbers 1, 2 and 3 respectively illustrate a support frame, a plate printed circuit and a sheet of flexible material intended to be glued to the upper face 4, which is visible, from plate 2.
  • the latter is configured to be received in support frame 1, like the shows figures 2 and 3 by resting on pins support 6 integral with bottom elements 7 of the frame.
  • the figure also shows that the upper side 4 of the printed circuit board on which the cover sheet 3 only has areas and metallized printed circuit tracks 9 while the electrical components of the printed circuit are mounted on the underside 10 of the plate 2.
  • the components are schematically indicated in 12.
  • the reference number 13 designates the connection wires electric outdoor, connected to connection points appropriate from the underside 10 of the plate 2.
  • the control device comprises four control elements 15, each consisting a cup 15 formed by a curved membrane and made of an electrically conductive material, advantageously metallic.
  • the cups 15 have a square shape, with cut corners and arc-shaped edges circle, to form a leg at each corner support 16 by which the cups bear on metallized areas 17 of the printed circuit, which make part of the track system 9.
  • the legs 16 are straightened, as clearly shown in Figure 4.
  • the printed circuit includes a portion metallized and thus conductive 20 connected by a track conductive 21 to a metallized hole 22 which crosses the plate 2 to be electrically connected to a component 12 located on the other side of the plate 2.
  • the cup 15 is deformable between two states, namely the rest state or normal to which the cup has the shape illustrated on Figure 4 and to which the central part 19 is distant of the conductive area 20 of the printed circuit, and the state pressed by pressing on the central part 19, to which this last comes in electrical contact with the area conductive 20. When the operator releases the pressure on the central part of the cup, this amounts to his state of rest.
  • Each control cup 15 is associated with a diode light emitting 24 arranged in a through hole 25 practiced in plate 2. This diode is visible from outside through a transparent circular area 27 of the covering and positioning sheet 3 of cups 15. The diode 24 serves as a means of displaying the condition of the cup. When the cup is in its state diode 24 is not energized. However, at the following the insertion of the cup, the diode is excited and the light it emits crosses the area transparent 27 of the covering sheet 3.
  • cover sheet 3 it is still note that it adheres to the upper side 4 of the plate printed circuit by being retained by a layer of glue which has been previously applied to this face 4. Consequently, the cups 15 are positioned and retained on plate 2 without being glued to the sheet 3. It can also be seen that on the external face 29 of this sheet, the support area for actuating a cup is indicated by a rectangle 30. The display area 27 of the diode 24 associated with the cup 15 surrounded by the corresponding rectangle 3 is located inside the rectangle, as clearly seen in Figure 1.
  • the bottom elements 7 could be configured so as to have a sufficient surface near the edge of the frame to allow drilling of through holes for fixing screws on a support structure.
  • the support pins 6 could be removed.
  • plate 2 could be fixed in the frame advantageously removably for example by lugs provided on the internal face of the frame and the recesses in the lateral face of the plate or vice versa. It is also possible to confer on at least some of the internal side faces of the frame an inclined shape widening towards the bottom and the face side of the plate a complementary shape for get the plate retainer in the frame by nesting. In general, we could plan in top of side face of frame retainers of the plate, projecting towards the center of the frame.
  • the device according to the invention allows the exit of the wires external electrical connection through the bottom of the frame since this one is open. We could however also consider passing the wires from connection through a window in the wall side of the frame, if this would be beneficial for installation of the device.

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  • Casings For Electric Apparatus (AREA)
  • Push-Button Switches (AREA)

Description

L'invention concerne un dispositif de commande électrique, de type à boutons-poussoirs, notamment pour circuits imprimés.The invention relates to a control device electric, push button type, especially for printed circuits.

Des dispositifs de commande de ce type, qui sont connus, présentent l'inconvénient d'être encombrants parce qu'ils utilisent à titre de boutons-poussoirs des éléments en forme de leviers à deux bras, qui sont montés pivotants autour d'un axe supporté par une structure fixe, entre une position de repos et une position de commande, à l'encontre d'un ressort de rappel. Ainsi l'avantage du faible encombrement, que procure les circuits imprimés, est perdu dû au dispositif de commande volumineux.Control devices of this type, which are known, have the disadvantage of being bulky because they use as push buttons elements in form of two-arm levers, which are pivotally mounted around an axis supported by a fixed structure, between a rest position and a control position, at against a return spring. So the advantage of small footprint provided by printed circuits, is lost due to the bulky control device.

Un dispositif selon le préambule de la revendication 1 est connu de document DE 91 12 597 U.A device according to the preamble of claim 1 is known from document DE 91 12 597 U.

La présente invention a pour but de proposer un dispositif de commande, du type indiqué plus haut, qui ne présente pas l'inconvénient de l'état de la technique et permet la réalisation d'ensembles à circuit imprimé et dispositif de commande de faibles dimensions.The object of the present invention is to provide a control device, of the type indicated above, which does not does not have the disadvantage of the state of the art and allows the production of printed circuit assemblies and small control device.

Pour atteindre ce but, le dispositif de commande selon l'invention est prévu comme defini dans la revendication 1.To achieve this goal, the control device according to the invention is provided as defined in claim 1.

Selon une autre caractéristique de l'invention, une diode électroluminescente est associée à l'élément de commande en forme de coupelle et la plaque et la feuille de positionnement précitées comportent respectivement un trou et une zone transparente permettant d'indiquer à l'opérateur du dispositif de commande l'état de l'élément de commande.According to another characteristic of the invention, a diode is associated with the element of cup-shaped control and plate and sheet aforementioned positioning respectively have a hole and a transparent area to indicate the operator of the control device the state of the element control.

L'invention sera mieux comprise et d'autres buts, caractéristiques, détails et avantages de celle-ci apparaítront plus clairement au cours de la description explicative qui va suivre faite en référence aux dessins schématiques annexés donnés uniquement à titre d'exemple illustrant un seul mode de réalisation de l'invention et dans lesquels :

  • La figure 1 est une vue en perspective et éclatée d'un agencement à circuit imprimé, équipé d'un dispositif de commande selon la présente invention ;
  • la figure 2 montre l'agencement selon la figure 1, à l'état assemblé, avec arrachement ;
  • la figure 3 est une vue le long de la ligne III-III de la figure 2, et
  • la figure 4 est une vue à plus grande échelle de la partie indiquée en IV sur la figure 3.
The invention will be better understood and other objects, characteristics, details and advantages thereof will appear more clearly during the explanatory description which follows, made with reference to the appended schematic drawings given solely by way of example illustrating a single embodiment of the invention and in which:
  • Figure 1 is a perspective and exploded view of a printed circuit arrangement, equipped with a control device according to the present invention;
  • Figure 2 shows the arrangement according to Figure 1, in the assembled state, with cutaway;
  • Figure 3 is a view along line III-III of Figure 2, and
  • FIG. 4 is a view on a larger scale of the part indicated in IV in FIG. 3.

Sur les figures, les numéros de référence 1, 2 et 3 illustrent respectivement un cadre support, une plaque à circuit imprimé et une feuille en un matériau souple destinée à être collée sur la face supérieure 4, qui est visible, de la plaque 2. Cette dernière est configurée pour être reçue dans le cadre de support 1, comme le montre les figures 2 et 3 en prenant appui sur des picots de support 6 solidaires d'éléments de fond 7 du cadre. La figure montre également que la face supérieure 4 de la plaque à circuit imprimé sur laquelle sera collée la feuille de recouvrement 3 ne porte que des zones et pistes métallisées de circuit imprimé 9 tandis que les composants électriques du circuit imprimé sont montés sur la face inférieure 10 de la plaque 2. Les composants électriques sont schématiquement indiqués en 12. Le numéro de référence 13 désigne les fils de connexion électrique extérieure, reliés aux points de connexion appropriés de la face inférieure 10 de la plaque 2. In the figures, reference numbers 1, 2 and 3 respectively illustrate a support frame, a plate printed circuit and a sheet of flexible material intended to be glued to the upper face 4, which is visible, from plate 2. The latter is configured to be received in support frame 1, like the shows figures 2 and 3 by resting on pins support 6 integral with bottom elements 7 of the frame. The figure also shows that the upper side 4 of the printed circuit board on which the cover sheet 3 only has areas and metallized printed circuit tracks 9 while the electrical components of the printed circuit are mounted on the underside 10 of the plate 2. The components are schematically indicated in 12. The reference number 13 designates the connection wires electric outdoor, connected to connection points appropriate from the underside 10 of the plate 2.

Conformément à l'invention, le dispositif de commande comporte quatre éléments de commande 15, chacun constitué d'une coupelle 15 formée par uns membrane bombée et réalisée en un matériau électriquement conducteur, avantageusement métallique. Comma on le voit sur les figures, les coupelles 15 présentent une forme carrée, avec des angles coupés et les bords en forme d'un arc de cercle, pour former au niveau de chaque angle une patte d'appui 16 par laquelle les coupelles prennent appui sur des zones métallisées 17 du circuit imprimé, qui font partie du système des pistes conductrices 9.According to the invention, the control device comprises four control elements 15, each consisting a cup 15 formed by a curved membrane and made of an electrically conductive material, advantageously metallic. As seen on figures, the cups 15 have a square shape, with cut corners and arc-shaped edges circle, to form a leg at each corner support 16 by which the cups bear on metallized areas 17 of the printed circuit, which make part of the track system 9.

Pour assurer un appui parfait des coupelles sur les zones conductrices 17 du circuit imprimé, les pattes 16 sont redressées, comme le montre clairement la figure 4. Dans sa zone en regard de la partie centrale surrélevée 19 des coupelles 15, le circuit imprimé comporte une portion métallisée et ainsi conductrice 20 reliée par une piste conductrice 21 à un trou métallisé 22 qui traverse la plaque 2 pour être électriquement relié à un composant 12 situé sur l'autre côté de la plaque 2. La coupelle 15 est déformable entre deux états, à savoir l'état de repos ou normal auquel la coupelle présente la forme illustrée sur la figure 4 et auquel la partie centrale 19 est éloignée de la zone conductrice 20 du circuit imprimé, et l'état enfoncé par appui sur la partie centrale 19, auquel cette dernière vient en contact électrique avec la zone conductrice 20. Lorsque l'opérateur relâche la pression sur la partie centrale de la coupelle, celle-ci revient à son état de repos.To ensure perfect support of the cups on the areas conductive 17 of the printed circuit, the legs 16 are straightened, as clearly shown in Figure 4. In its area opposite the raised central part 19 of cups 15, the printed circuit includes a portion metallized and thus conductive 20 connected by a track conductive 21 to a metallized hole 22 which crosses the plate 2 to be electrically connected to a component 12 located on the other side of the plate 2. The cup 15 is deformable between two states, namely the rest state or normal to which the cup has the shape illustrated on Figure 4 and to which the central part 19 is distant of the conductive area 20 of the printed circuit, and the state pressed by pressing on the central part 19, to which this last comes in electrical contact with the area conductive 20. When the operator releases the pressure on the central part of the cup, this amounts to his state of rest.

A chaque coupelle de commande 15 est associée une diode électroluminescente 24 disposée dans un trou traversant 25 pratiqué dans la plaque 2. Cette diode est visible de l'extérieur à travers une zone circulaire transparente 27 de la feuille de recouvrement et de positionnement 3 des coupelles 15. La diode 24 sert de moyen d'affichage de l'état de la coupelle. Lorsque la coupelle est à son état de repos, la diode 24 n'est pas excitée. Par contre, à la suite de l'enfoncement de la coupelle, la diode est excitée et la lumière qu'elle émet traverse la zone transparente 27 de la feuille de recouvrement 3.Each control cup 15 is associated with a diode light emitting 24 arranged in a through hole 25 practiced in plate 2. This diode is visible from outside through a transparent circular area 27 of the covering and positioning sheet 3 of cups 15. The diode 24 serves as a means of displaying the condition of the cup. When the cup is in its state diode 24 is not energized. However, at the following the insertion of the cup, the diode is excited and the light it emits crosses the area transparent 27 of the covering sheet 3.

Concernant la feuille de recouvrement 3, il est encore à noter qu'elle adhère à la face supérieure 4 de la plaque à circuit imprimé en étant retenue par une couche de colle qui a été appliquée préalablement sur cette face 4. Par conséquent, les coupelles 15 sont positionnées et retenues sur la plaque 2 sans être collées à la feuille 3. On constate encore que sur la face externe 29 de cette feuille, la zone d'appui pour actionner une coupelle est indiquée par un rectangle 30. La zone d'affichage 27 de la diode 24 associée à la coupelle 15 entourée par le rectangle 3 correspondant se trouve à l'intérieur du rectangle, comme on le voit clairement sur la figure 1.Regarding cover sheet 3, it is still note that it adheres to the upper side 4 of the plate printed circuit by being retained by a layer of glue which has been previously applied to this face 4. Consequently, the cups 15 are positioned and retained on plate 2 without being glued to the sheet 3. It can also be seen that on the external face 29 of this sheet, the support area for actuating a cup is indicated by a rectangle 30. The display area 27 of the diode 24 associated with the cup 15 surrounded by the corresponding rectangle 3 is located inside the rectangle, as clearly seen in Figure 1.

Il ressort de la description qui vient d'être faite et des figures, que l'invention permet d'obtenir un ensemble à carte à circuit imprimé et dispositif de commande, de faibles dimensions. On voit notamment que le dispositif de commande n'augmente que faiblement l'épaisseur de la plaque ou carte à circuit imprimé. L'invention permet ainsi de réaliser un ensemble plat et d'une bonne qualité esthétique.It appears from the description which has just been made and of the figures, that the invention makes it possible to obtain a set with printed circuit board and control device, small dimensions. We see in particular that the device only slightly increases the thickness of the plate or printed circuit board. The invention allows thus to make a flat and good quality aesthetic.

Bien entendu, des multiples modifications peuvent être apportées au dispositif de commande électrique selon l'invention tel que décrit et représenté sur les figures. Ainsi, les éléments de fond 7 pourraient être configurés de façon à avoir une surface suffisante près du bord du cadre pour permettre le perçage de trous de passage pour des vis de fixation sur une structure de support. Les picots de support 6 pourraient être supprimés. D'autre part, la plaque 2 pourrait se fixer dans le cadre avantageusement amoviblement par exemple par des ergots prévus sur la face interne du cadre et des évidements dans la face latérale de la plaque ou inversement. Il est également possible de conférer à au moins une partie des faces latérales internes du cadre une forme inclinée allant en s'élargissant vers le fond et à la face latérale de la plaque une forme complémentaire pour obtenir la retenue de la plaque dans le cadre par emboítement. De façon générale, on pourrait prévoir en haut de la face latérale du cadre des éléments de retenue de la plaque, en saillie vers le centre du cadre.Of course, multiple modifications can be made to the electrical control device according to the invention as described and shown in the figures. Thus, the bottom elements 7 could be configured so as to have a sufficient surface near the edge of the frame to allow drilling of through holes for fixing screws on a support structure. The support pins 6 could be removed. Else apart, plate 2 could be fixed in the frame advantageously removably for example by lugs provided on the internal face of the frame and the recesses in the lateral face of the plate or vice versa. It is also possible to confer on at least some of the internal side faces of the frame an inclined shape widening towards the bottom and the face side of the plate a complementary shape for get the plate retainer in the frame by nesting. In general, we could plan in top of side face of frame retainers of the plate, projecting towards the center of the frame.

Le dispositif selon l'invention permet la sortie des fils de connexion électriques extérieurs à travers le fond du cadre étant donné que celui-ci est ouvert. On pourrait cependant également envisager de faire passer les fils de connexion à travers une fenêtre pratiquée dans la paroi latérale du cadre, si cela s'avérait avantageux pour l'installation du dispositif.The device according to the invention allows the exit of the wires external electrical connection through the bottom of the frame since this one is open. We could however also consider passing the wires from connection through a window in the wall side of the frame, if this would be beneficial for installation of the device.

Claims (8)

  1. An electrical control device of the type including an integrated printed circuit board, comprising a carrying face of an integrated circuit, provided with metallised contact zones (17) of a control unit (15), consisting of a dished metal component in the shape of a convex diaphragm, comprising supporting shoulder portions (16) and a central portion (19) and resting via the said shoulders on one of the said contact zones, whilst its central part (19) faces another metallised zone (20) of the printed circuit, in such a way as to be deformable between a condition of rest in which the central part (19) is distant from the said metallised zone (20) and a bedded-in condition, in which the central part is in contact with the said metallised zone (20) and a flexible covering sheet (3) of the integrated printed circuit board control and the control units (15), characterised by the fact that the ends of the tabs resting on the metallised zones, are upright and are shaped like skids, by the fact that the control units (15) rest freely on the metallised zones between the upper face of the integrated circuit board and the positioning sheet (3) and by the fact that the latter is glued to the said upper face around the control units (15).
  2. A device according to Claim 1, characterised by the fact that a display component (24) of its condition, is associated with each control unit (15) in the shape of a dished component, by the fact that this display component is supported by the printed circuit board (2) and by the fact that the positioning sheet (3) comprises a transparent zone (27) to show the condition of a display element (24).
  3. A device according to Claim 2, characterised by the fact that the display component (24) is an electro-luminescent diode, fitted into a pass-through hole (25), made in the printed circuit board beneath the aforementioned transparent zone (27) of the positioning sheet (3).
  4. A device according to one of the preceding Claims, characterised by the fact that the printed circuit board is fitted into a support (20) in the shape of a relatively low frame.
  5. A device according to one of the preceding Claims, characterised by the fact that the printed circuit board (2) is fixed in the frame (1) by means of projections provided on the interior face of the frame on the periphery of the board (2) and recesses in the lateral face of the board, or the interior face of the frame.
  6. A device according to one of the Claims 1 to 4, characterised by the fact that the printed circuit board (2) is held in the frame by components provided at the top of the lateral face of the frame and projecting towards the centre of the latter
  7. A device according to one of the preceding Claims, characterised by the fact that the frame comprises means of fixing on a support and the fact that the connecting wires of the electrical components fitted on the printed circuit board are accessible via the face of the frame base.
  8. A device according to one of the Claims 1 to 7, characterised by the fact that the frame comprises in its lateral wall a window for passing trough the wires.
EP19980112540 1997-07-08 1998-07-07 Push button type electric control device in particular for printed circuits Expired - Lifetime EP0890966B9 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9700589 1997-07-08
BE9700589A BE1011265A5 (en) 1997-07-08 1997-07-08 Electrical control device, type push button, especially for printed circuits.

Publications (3)

Publication Number Publication Date
EP0890966A1 EP0890966A1 (en) 1999-01-13
EP0890966B1 true EP0890966B1 (en) 2002-06-05
EP0890966B9 EP0890966B9 (en) 2003-10-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980112540 Expired - Lifetime EP0890966B9 (en) 1997-07-08 1998-07-07 Push button type electric control device in particular for printed circuits

Country Status (3)

Country Link
EP (1) EP0890966B9 (en)
BE (1) BE1011265A5 (en)
DE (1) DE69805706T2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2160540B1 (en) * 2000-02-11 2003-04-01 Lear Automotive Eeds Spain MEMBRANE SLIDING SWITCH.
ES1046115Y (en) * 2000-02-11 2001-05-01 Lopez Santos Martinez SECURITY DEVICE IN FACILITIES WITH COMBUSTIBLE OR TOXIC GASES.
DE10310035A1 (en) * 2003-03-06 2004-09-16 Burg-Wächter Kg Device comprising a carrier element with preferably up to 12 keys and/or pressure elements useful for introduction and optical representation of control commands in electronic data processing devices for control of alarm equipment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9112597U1 (en) * 1991-10-10 1992-06-11 Buch Elektronik Gmbh, 3257 Springe Front panel for the housing of electronic devices

Also Published As

Publication number Publication date
DE69805706D1 (en) 2002-07-11
DE69805706T2 (en) 2003-01-02
BE1011265A5 (en) 1999-07-06
EP0890966A1 (en) 1999-01-13
EP0890966B9 (en) 2003-10-29

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