EP3813089B1 - Miniature electric switch of the normally closed type comprising an open contact locking position - Google Patents

Miniature electric switch of the normally closed type comprising an open contact locking position Download PDF

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Publication number
EP3813089B1
EP3813089B1 EP20194561.5A EP20194561A EP3813089B1 EP 3813089 B1 EP3813089 B1 EP 3813089B1 EP 20194561 A EP20194561 A EP 20194561A EP 3813089 B1 EP3813089 B1 EP 3813089B1
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EP
European Patent Office
Prior art keywords
actuator
electric switch
internal contact
contact blade
internal
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.)
Active
Application number
EP20194561.5A
Other languages
German (de)
French (fr)
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EP3813089A1 (en
Inventor
Fabrice Valcher
Philippe Gauthier
Jocelyn MAYOT
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.)
C&K Components SAS
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C&K Components SAS
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Publication date
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Publication of EP3813089A1 publication Critical patent/EP3813089A1/en
Application granted granted Critical
Publication of EP3813089B1 publication Critical patent/EP3813089B1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/52—Contacts adapted to act as latches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/36—Driving mechanisms
    • H01H21/40—Driving mechanisms having snap action
    • H01H21/44—Driving mechanisms having snap action produced by flexing blade springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/22—Operating parts, e.g. handle
    • 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
    • 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
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/28—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button with three operating positions
    • H01H23/30—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button with three operating positions with stable centre positions and one or both end positions unstable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/04—Levers

Definitions

  • the invention relates to a normally closed type electrical switch comprising an elastically deformable blade which causes a change of state of the electrical switch in response to the application of an actuating force on the elastically deformable blade and in which, in In the absence of application of an actuation force, the electrical switch is maintained in a closed state.
  • US 9,218,926 B1 “describes an electrical switch of the normally closed type, comprising a casing, which comprises an upper part and a complementary lower part, which carries a fixed internal contact track, an internal contact blade, which is carried by the upper part and which is elastically deformable to occupy a high rest position to establish an electrical switching path, an unstable low position in which the electrical switching path is interrupted and an actuator for controlling the deformations of the internal blade, which is pivotally mounted around a horizontal axis, between the rest position and an angular actuation position, in which the internal contact blade is in its first position.
  • the latter During the first use causing at least a first change of state of the electrical switch, the latter returns at least temporarily to its closed state in which the electrical switching path is established.
  • Such a design can be inconvenient, in particular when the electric switch is assembled on an electronic card comprising a battery or electric cell. Indeed, before being integrated into the electronic device, the electric switch is not activated and it is in its closed state, which causes consumption of the energy accumulated in the battery or electric cell of the device.
  • the invention aims to provide a solution to this problem by proposing an electrical switch comprising means for locking in the open position, that is to say in a state in which the electrical switching path is interrupted.
  • the invention also aims to provide such an electric switch which is of compact design, and which makes it possible to absorb an overtravel of actuation.
  • the invention also aims to propose a switch which can be unlocked automatically when it is carried by a sub-assembly which is put in place and assembled in an electronic device.
  • the invention also proposes an assembly comprising an electronic card and a switch according to the invention, characterized in that the electrical switch is mounted on one face of the electronic card and is adjacent to an edge of the electronic card so that, if the assembly is placed in an electronic device, the internal contact blade of the electrical switch is automatically unlocked by its actuator coming into contact with a part facing the electronic device , or belonging to assembly means.
  • the longitudinal axis L is oriented from the rear to the front.
  • FIG. 1 We represented at figures 1 to 5 an exemplary embodiment of an electrical switch 100 which here has a general design symmetry with respect to the median vertical and longitudinal plane PVM indicated in picture 3 .
  • the electrical switch 100 comprises a housing 10 in two upper 12 and lower 14 parts which houses a double internal contact blade 16 and an actuator 18.
  • the upper part 12 is a molded part made of insulating plastic material of generally rectangular parallelepipedic shape and which defines an internal housing 20 delimited by a horizontal upper wall 22, two vertical and longitudinal side walls 24, and by a vertical and transverse front wall 26.
  • the rear transverse face 28 is open, as is the horizontal underside 30.
  • the upper wall 22 comprises a through central opening 32 which is delimited by an inclined front transverse edge 34, by an inclined rear transverse edge 36 and by two longitudinal vertical faces 38 of longitudinal orientation.
  • the internal face 23 of the upper wall 22 here comprises two vertical studs 40 for fixing by hot crimping the internal contact blade 16, which are arranged longitudinally close to the open rear transverse face 28.
  • the open lower face 30 comprises three vertical studs 42 arranged in a triangle for fixing the lower part 14 by hot crimping.
  • each side wall 24 includes a concave semi-cylindrical housing 44 which opens vertically downwards.
  • the upper wall 22 Transversely on either side of the central slot 32, and substantially at mid-length, the upper wall 22 comprises a locking lug 46 with a substantially V-shaped profile.
  • the locking lugs 46 are slightly offset longitudinally forward relative to the central axis A of the housings 44 (see figure 10 ).
  • the lower part 14 of the box 10 is here a piece of conductive metal sheet which is produced by cutting and bending.
  • the lower part comprises a horizontal rectangular lower plate 50 which is extended laterally by two vertical and longitudinal side cheeks 52.
  • the dimensions of the lower part 14 are complementary to those of the upper part so that, in the assembled position, the side flanges 52 each extend along an outer face 25 of a side wall 24, and substantially on the full height of the top 12.
  • each side flange is extended by an electrical connection lug 56 which extends outwards in a vertical and transverse plane.
  • the horizontal lower plate 50 comprises three holes 60 arranged in a triangle, each of which is crossed vertically by a vertical stud 42 of the upper part 12.
  • the horizontal lower plate 50 comprises two branches 62 of elastic return.
  • Each return branch 62 is produced by cutting and bending and its active front free end section 64 is folded inwardly of the internal housing of the upper part 12 of the casing 10.
  • each return branch 62 is able to deform elastically, in particular downwards.
  • the elastic return branches 62 are shown in their elastically unconstrained state.
  • the internal contact blade 16 is here a double blade, of symmetrical design with respect to the plane PVM, which is produced in a conductive metal sheet by cutting and bending.
  • the two internal electrical contact blades themselves are interconnected by a horizontal crosspiece 66 for fixing.
  • the crosspiece 66 For fixing each internal electrical contact blade, the crosspiece 66 comprises two holes 68 spaced apart transversely and each of which is crossed vertically by a vertical stud 40 of the upper part 12.
  • Each internal contact blade 16 comprises, successively and longitudinally from rear to front, a rear fixing section 70, an intermediate actuation section 72 and a front contact section 74.
  • the rear fixing section 70 to which the crosspiece 66 is attached for its fixing under the lower face 23 of the upper wall 22 of the upper part 12 of the casing 10, here extends horizontally.
  • Each rear attachment section 70 is here extended longitudinally towards the rear by an external electrical connection section 76 which is here shaped as a tapping pin which projects longitudinally beyond the open rear transverse face 28.
  • each intermediate actuation section 72 extends horizontally in the extension of the sections 70 and 76, inside the housing 20, substantially halfway up (See figure 9 and 10 ).
  • Each actuation section 72 is delimited by a flat lower face 73.
  • each intermediate actuation section 72 is extended forward by a front contact section 74 which is inclined vertically downwards and which ends in an angled end 78 whose convexity is oriented towards the internal upper face 51 of the horizontal lower plate 50.
  • each front contact section 74 is shaped in such a way that its bent free end 78 is in elastic contact support towards the bottom against a portion facing the upper face 51 of the lower plate 50.
  • This portion facing the upper face 51 of the lower plate 50 constitutes a fixed lower electrical contact track to establish a electrical switching path between the lower plate 50 and its electrical connection lugs 56 on the one hand, and the connecting sections 76 on the other hand.
  • This upward movement is obtained by elastic deformation of the internal contact blades 16 by acting on the intermediate sections 72 for actuation.
  • Actuator 18 generally takes the form of an internal transverse actuation shaft 80 and a drive arm 82.
  • the internal shaft 80 and its drive arm 82 are here produced in a single piece by molding in plastic material.
  • the internal transverse shaft For its rotational mounting, pivoting in both directions, relative to the housing 10, the internal transverse shaft comprises, at each of its two opposite transverse ends, a cylindrical journal 84 which is received in rotation, almost without play, in a complementary housing 44 of the upper part 12 inside which it is held imprisoned by the lower plate 50.
  • the actuating shaft is thus mounted for rotation around the axis A.
  • the internal shaft 80 is extended by a rectilinear arm for driving in rotation.
  • drive arm 82 extends vertically through central lumen 32 above top wall 22.
  • the drive arm 82 is slightly offset longitudinally rearward relative to the vertical plane passing through the axis of rotation A.
  • the transverse width of drive arm 82 is slightly less than the transverse width of central lumen 32.
  • the maximum angular positions that the actuator 18 can reach in both directions correspond to the coming into abutment of the drive arm 82 with the inclined front transverse edge 34 or with the inclined rear transverse edge 36.
  • the internal shaft 80 comprises a locking lug 86 which is capable of cooperating with a locking notch 46 facing each other.
  • the upper end of the cylindrical profile of the locking lug 86 is slightly offset longitudinally forwards and extends opposite the associated locking notch 46.
  • the assembly consisting of a locking lug 46 and a locking notch 86 constitutes means for locking the drive arm 82, and therefore the double internal contact blade 16, in its second stable high position in which the electrical switching is interrupted.
  • each control cam 88 is generally triangular and has a flat horizontal upper section 92 which ends in a front elbow 94 and a rear elbow 96 for control.
  • Each bend 94, 96 is in the form of a convex cylinder arc.
  • the front elbow 94 is extended downwards by an inclined plane section 98.
  • Each cam 88 is arranged transversely in line with a return leg 62 and each inclined plane section 98 of the cam profile extends with play opposite an active front free end section 64.
  • the upper face of the flat horizontal upper section 92 extends here with a slight vertical play by relative to the lower face 73 of the associated actuation section 72.
  • the switch 100 is shown in a rest position in which the electrical switching path is established by each of the two front contact sections 74 of the internal double contact blade 16, each internal blade 16 being in a low position with respect to bottom plate 50.
  • NC normally closed NC of the electrical switch.
  • This pivoting causes the cooperation of the rear control elbow 96 with the associated actuation section 72 of the internal blade 16 and a lifting of the front contact section 74.
  • the opening of the electrical contact 51-78 is almost immediate, but the angular actuation stroke by pivoting of the actuation arm 82 can be continued.
  • the electrical switch 100 thus has a capacity to absorb a large actuation overtravel.
  • This position or state NOi is unstable because, as soon as one ceases to apply an actuating force to the actuating arm 82, the actuator 18 is elastically returned to its central angular position of rest by the action of the recall branches 62.
  • This pivoting causes the cooperation of the front control elbow 94 with the associated actuating section 72 and a lifting of the front contact section 74 of each internal blade 16.
  • Each internal blade 16 is then in a second high position relative to the lower plate 50.
  • the opening of the electrical contact 51-78 is almost immediate. It is a second stable open position NOs of the electrical switch in which the electrical switching path is interrupted.
  • This position or state NOs is stable because, when an actuating force is ceased to be applied to the actuating arm 82, the latter remains angularly locked by the locking means 46-86.
  • the drive arm 82 has caused an elastic deformation of the upper partition to retract the locking notch 46 and cause the locking lug 86 to pass angularly to the other side.
  • the drive shaft 80 is then again in its central angular position and the electrical switching path is restored.
  • the double design of the internal blade 16 of contact makes it possible, for certain applications, to have contact redundancy which is useful if, for example, the electrical switch is not sealed and that an impurity is introduced between the free end 78 and the upper face 51.
  • the internal contact blade 16 is simple, that is to say it comprises only one part with an intermediate actuation section 72 and a front contact section 74, 78.
  • the other section 72' of symmetrical design and similar to that of the actuation section 72, is not extended by a contact section and therefore has no function of establishing or interrupting an electrical contact.
  • the locking notch 46 is a window which is formed in an elastically deformable tab 99 which is made centrally in the lower plate 50, transversely between the two elastic return branches 62.
  • the complementary locking lug 86 is formed at the bottom of the actuator 18.
  • the drive shaft 80 includes a beak-shaped lug which is adapted to be received in the window 46 when the electrical switch is locked in its stable state. open NOs (See figure 21 ).
  • the rear profile of the locking pin 86 is shaped to allow unlocking.
  • the lower plate 50 comprises two tapping pins 56 which protrude longitudinally beyond the open rear transverse face 28, like the electrical connection sections 76 of the internal contact blade.
  • an electrical switch 100 can be mounted on a face 104 of an electronic card comprising in particular a printed circuit board 102 which is delimited by an edge 106 to form an assembly 200.
  • Switch 100 is adjacent to edge 106 of plate 102 and, as can be seen in figure 23 , the outer face of its wall 22 is substantially aligned with the edge 106.
  • Such mounting and positioning of the electrical switch 100 can, if the assembly 200 is placed in an electronic device (not shown) in the direction indicated by the arrow F of the figure 23 , enable automatic unlocking of the electrical switch 100 by the actuation arm 82 coming into contact with a part facing the electronic device, or belonging to automated assembly means.

Description

Domaine technique de l'inventionTechnical field of the invention

L'invention concerne un commutateur électrique du type normalement fermé comportant une lame déformable élastiquement qui provoque un changement d'état du commutateur électrique en réponse à l'application d'un effort d'actionnement sur la lame déformable élastiquement et dans lequel, en l'absence d'application d'un effort d'actionnement, le commutateur électrique est maintenu dans un état fermé.The invention relates to a normally closed type electrical switch comprising an elastically deformable blade which causes a change of state of the electrical switch in response to the application of an actuating force on the elastically deformable blade and in which, in In the absence of application of an actuation force, the electrical switch is maintained in a closed state.

Arrière-plan techniqueTechnical background

Le document " US 9 218 926 B1 " décrit un commutateur électrique du type normalement fermé, comportant un boîtier, qui comporte une partie supérieure et une partie inférieure complémentaire, qui porte une piste interne fixe de contact, une lame interne de contact, qui est portée par la partie supérieure et qui est déformable élastiquement pour occuper une position haute de repos pour établir une voie de commutation électrique, une position basse non stable dans laquelle la voie de commutation électrique est interrompue et un actionneur de commande des déformations de la lame interne, qui est monté pivotant, autour d'un axe horizontal, entre la position de repos et une position angulaire d'actionnement, dans laquelle la lame interne de contact est dans sa première position.The document " US 9,218,926 B1 "describes an electrical switch of the normally closed type, comprising a casing, which comprises an upper part and a complementary lower part, which carries a fixed internal contact track, an internal contact blade, which is carried by the upper part and which is elastically deformable to occupy a high rest position to establish an electrical switching path, an unstable low position in which the electrical switching path is interrupted and an actuator for controlling the deformations of the internal blade, which is pivotally mounted around a horizontal axis, between the rest position and an angular actuation position, in which the internal contact blade is in its first position.

Dans un tel type de commutateur électrique, en l'absence d'un effort agissant sur l'actionneur, le commutateur électrique est maintenu élastiquement sous charge dans son état fermé.In such a type of electrical switch, in the absence of a force acting on the actuator, the electrical switch is held elastically under load in its closed state.

Après l'intégration d'un tel type de commutateur électrique dans un appareil électronique ou électromécanique, son utilisation classique consiste à interrompre la voie de commutation électrique en agissant sur son actionneur avant la première utilisation ou mise en marche fonctionnelle de l'appareil. L'appareil peut alors être stocké pendant une période pouvant être très longue, sans consommation d'énergie.After the integration of such a type of electrical switch in an electronic or electromechanical device, its conventional use consists in interrupting the electrical switching path by acting on its actuator before the first use or functional start-up of the device. The device can then be stored for a period that can be very long, without energy consumption.

Lors de la première utilisation provoquant au moins un premier changement d'état du commutateur électrique, ce dernier retrouve au moins temporairement son état fermé dans lequel la voie de commutation électrique est établie.During the first use causing at least a first change of state of the electrical switch, the latter returns at least temporarily to its closed state in which the electrical switching path is established.

Une telle conception peut être gênante, notamment lorsque le commutateur électrique est assemblé sur une carte électronique comportant une batterie ou pile électrique. En effet, avant d'être intégré dans l'appareil électronique, le commutateur électrique n'est pas activé et il est dans son état fermé, ce qui provoque une consommation de l'énergie accumulée dans la batterie ou pile électrique de l'appareil.Such a design can be inconvenient, in particular when the electric switch is assembled on an electronic card comprising a battery or electric cell. Indeed, before being integrated into the electronic device, the electric switch is not activated and it is in its closed state, which causes consumption of the energy accumulated in the battery or electric cell of the device.

L'invention vise à apporter une solution à ce problème en proposant un commutateur électrique comportant des moyens de verrouillage en position ouverte, c'est-à-dire dans un état dans lequel la voie de commutation électrique est interrompue.The invention aims to provide a solution to this problem by proposing an electrical switch comprising means for locking in the open position, that is to say in a state in which the electrical switching path is interrupted.

L'invention vise aussi à proposer un tel commutateur électrique qui soit de conception compacte, et qui permette d'absorber une surcourse d'actionnement.The invention also aims to provide such an electric switch which is of compact design, and which makes it possible to absorb an overtravel of actuation.

L'invention vise encore à proposer un commutateur qui puisse se déverrouiller automatiquement lorsqu'il est porté par un sous-ensemble qui est mis en place et assemblé dans un appareil électronique.The invention also aims to propose a switch which can be unlocked automatically when it is carried by a sub-assembly which is put in place and assembled in an electronic device.

Résumé de l'inventionSummary of the invention

L'invention propose un commutateur du type normalement fermé comportant :

  • un boîtier comportant une partie supérieure en matériau isolant et une partie inférieure complémentaire qui porte une piste interne fixe de contact ;
  • une lame interne de contact qui est portée par la partie supérieure et qui est déformable élastiquement pour occuper :
    • * une position basse de repos dans laquelle elle est en appui élastique vers le bas sur la piste inférieure fixe de contact pour établir une voie de commutation électrique;
    • * une première position haute non stable dans laquelle la voie de commutation électrique est interrompue ;
    • * et une deuxième position haute stable dans laquelle la voie de commutation électrique est interrompue, et dans laquelle la lame interne de contact est verrouillée par des moyens de verrouillage escamotables ;
  • un actionneur de commande des déformations de la lame interne de contact qui, à partir d'une position de repos dans laquelle la lame interne de contact est dans sa position basse de repos et vers laquelle elle est rappelée élastiquement, est monté pivotant, autour d'un axe horizontal, entre :
    • * une première position angulaire d'actionnement dans laquelle la lame interne de contact est dans sa première position haute non stable ;
    • * et une deuxième position angulaire d'actionnement dans laquelle la lame interne de contact est dans sa deuxième position haute stable.
The invention proposes a switch of the normally closed type comprising:
  • a case comprising an upper part made of insulating material and a complementary lower part which carries a fixed internal contact track;
  • an internal contact blade which is carried by the upper part and which is elastically deformable to occupy:
    • * a low rest position in which it is elastically supported downwards on the lower fixed contact track to establish an electrical switching path;
    • * a first unstable high position in which the electrical switching path is interrupted;
    • * and a second stable high position in which the electrical switching path is interrupted, and in which the internal contact blade is locked by retractable locking means;
  • an actuator for controlling the deformations of the internal contact blade which, from a rest position in which the internal contact blade is in its low rest position and towards which it is returned elastically, is pivotally mounted, around a horizontal axis, between:
    • * a first angular actuation position in which the internal contact blade is in its first unstable high position;
    • * and a second angular actuation position in which the internal contact blade is in its second stable high position.

Selon d'autres caractéristiques de l'invention :

  • la position de repos de l'actionneur est une position angulaire intermédiaire entre ses première et deuxième positions angulaires d'actionnement de la lame interne de contact ;
  • la lame interne de contact comporte successivement :
    • -- un tronçon arrière pour sa fixation à la partie supérieure du boîtier ;
    • -- un tronçon intermédiaire d'actionnement ;
    • -- et un tronçon avant de contact qui, en position basse de repos de la lame interne de contact, est en appui élastique vers le bas sur la piste inférieure fixe de contact pour établir la voie de commutation électrique,
      et l'actionneur comporte une came de commande dont le profil de came coopère avec le tronçon intermédiaire d'actionnement de lame interne de contact ;
    • la lame interne de contact, déformable élastiquement, coopère avec la came de commande de l'actionneur pour participer au rappel élastique de l'actionneur vers sa position de repos ;
    • le tronçon intermédiaire d'actionnement de la lame interne de contact s'étend sensiblement horizontalement au-dessus de la came de commande et au-dessus de l'axe de pivotement de l'actionneur ;
    • l'axe de pivotement de l'actionneur est situé à l'intérieur du boîtier ;
    • la partie supérieure du boîtier comporte un cran de verrouillage, et l'actionneur comporte un ergot de verrouillage qui coopère avec le cran de verrouillage pour verrouiller la lame interne de contact dans sa deuxième position haute stable ;
    • en variante, la partie inférieure du boîtier comporte un cran de verrouillage, et l'actionneur comporte un ergot de verrouillage qui coopère avec le cran de verrouillage pour verrouiller la lame interne de contact 6) dans sa deuxième position haute stable ;
    • le commutateur comporte une lame interne de stabilisation de l'actionneur qui comporte un tronçon de stabilisation, l'actionneur comporte une came de commande dont le profil de came coopère avec le tronçon de stabilisation de lame interne de stabilisation ;
    • la partie inférieure du boîtier comporte une plaque inférieure horizontale de fermeture du boîtier, et la piste interne fixe de contact est une portion de la face supérieure de cette plaque inférieure ;
    • la plaque inférieure de la partie inférieure du boîtier comporte une branche déformable élastiquement qui coopère avec une portion complémentaire en vis-à-vis de l'actionneur pour participer au rappel élastique de l'actionneur de sa première position angulaire d'actionnement vers sa position de repos ;
    • en variante, la plaque inférieure de la partie inférieure du boîtier comporte une patte déformable élastiquement qui comporte le cran de verrouillage ;
    • l'actionneur comporte un bras d'entraînement de l'actionneur en pivotement dans les deux sens qui fait saillie verticalement vers le haut à travers la partie supérieure du boîtier ;
    • la deuxième position haute stable de la lame interne de contact correspond à un état initial de livraison du commutateur électrique.
According to other characteristics of the invention:
  • the rest position of the actuator is an intermediate angular position between its first and second angular positions for actuation of the internal contact blade;
  • the internal contact strip comprises successively:
    • - a rear section for its attachment to the upper part of the housing;
    • -- an intermediate actuation section;
    • -- and a front contact section which, in the lower rest position of the internal contact blade, is elastically supported downwards on the fixed lower contact track to establish the electrical switching path,
      and the actuator comprises a control cam whose cam profile cooperates with the intermediate section for actuating the internal contact blade;
    • the elastically deformable inner contact blade cooperates with the actuator control cam to participate in the elastic return of the actuator to its rest position;
    • the intermediate section for actuating the internal contact blade extends substantially horizontally above the control cam and above the pivot axis of the actuator;
    • the pivot axis of the actuator is located inside the housing;
    • the upper part of the case includes a locking notch, and the actuator includes a locking lug which cooperates with the locking notch to lock the internal contact blade in its second stable upper position;
    • as a variant, the lower part of the case includes a locking notch, and the actuator includes a locking lug which cooperates with the locking notch to lock the internal contact blade 6) in its second stable high position;
    • the switch comprises an internal stabilizer blade of the actuator which comprises a stabilization section, the actuator comprises a control cam whose cam profile cooperates with the internal stabilization blade stabilization section;
    • the lower part of the housing comprises a horizontal lower plate for closing the housing, and the fixed internal contact track is a portion of the upper face of this lower plate;
    • the lower plate of the lower part of the housing comprises an elastically deformable branch which cooperates with a complementary portion facing the actuator to participate in the elastic return of the actuator from its first angular position of actuation towards its position rest ;
    • as a variant, the lower plate of the lower part of the casing comprises an elastically deformable lug which comprises the locking notch;
    • the actuator comprises a two-way pivoting actuator drive arm which projects vertically upwards through the upper part of the housing;
    • the second stable upper position of the internal contact blade corresponds to an initial state of delivery of the electrical switch.

L'invention propose encore un ensemble comportant une carte électronique et un commutateur selon l'invention, caractérisé en ce que le commutateur électrique est monté sur une face de la carte électronique et est adjacent d'un bord de la carte électronique de manière que, si l'ensemble est mis en place dans un appareil électronique, il se produit un déverrouillage automatique de la lame interne de contact du commutateur électrique par la venue en contact de son actionneur avec une partie en vis-à-vis de l'appareil électronique, ou appartenant à des moyens d'assemblage.The invention also proposes an assembly comprising an electronic card and a switch according to the invention, characterized in that the electrical switch is mounted on one face of the electronic card and is adjacent to an edge of the electronic card so that, if the assembly is placed in an electronic device, the internal contact blade of the electrical switch is automatically unlocked by its actuator coming into contact with a part facing the electronic device , or belonging to assembly means.

Brève descriptions des figuresBrief descriptions of figures

D'autres caractéristiques et avantages de l'invention apparaitront au cours de la lecture de la description détaillée qui va suivre pour la compréhension de laquelle on se reportera aux dessins annexés dans lesquels :

  • [Fig.1] - la figure 1 est une vue en perspective d'un premier exemple de réalisation d'un commutateur électrique selon l'invention ;
  • [Fig.2] - la figure 2 est une vue de côté du commutateur électrique illustré à la figure 1 ;
  • [Fig.3] - la figure 3 est une vue de dessus du commutateur électrique illustré à la figure 1 ;
  • [Fig.4] - la figure 4 est une vue de dessous du commutateur électrique illustré à la figure 1 ;
  • [Fig.5] - la figure 5 est une vue éclatée en perspective des composants du commutateur électrique illustré à la figure 1 ;
  • [Fig.6] - la figure 6 est une vue analogue à celle de la figure 5 selon un autre angle de perspective ;
  • [Fig.7] - la figure 7 est une vue analogue à celle de la figure 1 sur laquelle la partie supérieure du boîtier et l'actionneur ne sont pas représentés ;
  • [Fig.8] - la figure 8 est une vue en perspective de dessous et en coupe partielle du commutateur électrique illustré à la figure 1 et sur laquelle la partie supérieure du boîtier n'est pas représentée ;
  • [Fig.9] - la figure 9 est une vue du commutateur électrique de la figure 1 qui est représenté en coupe selon la ligne 9-9 de la figure 3 ;
  • [Fig.10] - la figure 10 est une vue du commutateur électrique de la figure 1 qui est représenté en coupe selon la ligne 10-10 de la figure 3.
  • [Fig.11] - la figure 11 est une vue en perspective à grande échelle de l'actionneur du commutateur électrique illustré aux figures 1 à 10 ;
  • [Fig.12] - la figure 12 est une vue analogue à celle de la figure 6 qui illustre un deuxième exemple de réalisation d'un commutateur électrique selon l'invention ;
  • [Fig.13] - la figure 13 est une vue analogue à celle de la figure 7 et qui illustre le deuxième exemple de réalisation représenté à la figure 12 ;
  • [Fig.14] - la figure 14 est une vue analogue à celle de la figure 8 et qui illustre le deuxième exemple de réalisation représenté à la figure 12 ;
  • [Fig.15] - la figure 15 est une vue en perspective à grande échelle de l'actionneur du commutateur électrique illustré aux figures 12 à 14 ;
  • [Fig.16] - la figure 16 est une vue analogue à celle de la figure 9 et qui illustre le deuxième exemple de réalisation du commutateur électrique dans son état normalement fermé ;
  • [Fig.17] - la figure 17 est une vue analogue à celle de la figure16 qui illustre le commutateur électrique dans son état instable ouvert ;
  • [Fig.18] - la figure 18 est une vue analogue à celle de la figure16 qui illustre le commutateur électrique verrouillé dans son état stable ouvert ;
  • [Fig.19] - la figure 19 est une vue analogue à celle de la figure 10 et qui illustre le deuxième exemple de réalisation du commutateur électrique dans son état normalement fermé ;
  • [Fig.20] - la figure 20 est une vue analogue à celle de la figure19 qui illustre le commutateur électrique dans son état instable ouvert ;
  • [Fig.21] - la figure 21 est une vue analogue à celle de la figure19 qui illustre le commutateur électrique verrouillé dans son état stable ouvert ;
  • [Fig.22] - la figure 22 est une vue en perspective qui illustre le commutateur électrique représenté aux figures 12 à 21, en position assemblée sur une face d'une carte ou plaque à circuits imprimés ; et
  • [Fig.23] - la figure 23 est une vue de côté de l'ensemble illustré à la figure 22.
Other characteristics and advantages of the invention will appear during the reading of the detailed description which will follow for the understanding of which reference will be made to the appended drawings in which:
  • [ Fig.1 ] - the figure 1 is a perspective view of a first embodiment of an electrical switch according to the invention;
  • [ Fig.2 ] - the figure 2 is a side view of the electrical switch shown in figure 1 ;
  • [ Fig.3 ] - the picture 3 is a top view of the electrical switch shown in figure 1 ;
  • [ Fig.4 ] - the figure 4 is a bottom view of the electrical switch shown in figure 1 ;
  • [ Fig.5 ] - the figure 5 is an exploded perspective view of the components of the electrical switch shown in figure 1 ;
  • [ Fig.6 ] - the figure 6 is a view analogous to that of figure 5 from another angle of perspective;
  • [ Fig.7 ] - the figure 7 is a view analogous to that of figure 1 on which the upper part of the housing and the actuator are not shown;
  • [ Fig.8 ] - the figure 8 is a perspective view from below and in partial section of the electrical switch shown in figure 1 and on which the upper part of the housing is not shown;
  • [ Fig.9 ] - the figure 9 is a view of the electrical switch of the figure 1 which is shown in section along line 9-9 of picture 3 ;
  • [ Fig.10 ] - the figure 10 is a view of the electrical switch of the figure 1 which is shown in section along line 10-10 of the picture 3 .
  • [ Fig.11 ] - the figure 11 is an enlarged perspective view of the electrical switch actuator shown in figures 1 to 10 ;
  • [ Fig.12 ] - the figure 12 is a view analogous to that of figure 6 which illustrates a second embodiment of an electrical switch according to the invention;
  • [ Fig.13 ] - the figure 13 is a view analogous to that of figure 7 and which illustrates the second exemplary embodiment shown in figure 12 ;
  • [ Fig.14 ] - the figure 14 is a view analogous to that of figure 8 and which illustrates the second exemplary embodiment shown in figure 12 ;
  • [ Fig.15 ] - the figure 15 is an enlarged perspective view of the electrical switch actuator shown in figures 12 to 14 ;
  • [ Fig.16 ] - the figure 16 is a view analogous to that of figure 9 and which illustrates the second embodiment of the electrical switch in its normally closed state;
  • [ Fig.17 ] - the figure 17 is a view analogous to that of figure16 which illustrates the electrical switch in its unstable open state;
  • [ Fig.18 ] - the figure 18 is a view analogous to that of figure16 which illustrates the latched electrical switch in its stable open state;
  • [ Fig.19 ] - the figure 19 is a view analogous to that of figure 10 and which illustrates the second embodiment of the electrical switch in its normally closed state;
  • [ Fig.20 ] - the figure 20 is a view analogous to that of figure19 which illustrates the electrical switch in its unstable open state;
  • [ Fig.21 ] - the figure 21 is a view analogous to that of figure19 which illustrates the latched electrical switch in its stable open state;
  • [ Fig.22 ] - the figure 22 is a perspective view illustrating the electrical switch shown in figures 12 to 21 , in the assembled position on one face of a printed circuit board or plate; and
  • [ Fig.23 ] - the figure 23 is a side view of the assembly shown in figure 22 .

Description détaillée de l'inventionDetailed description of the invention

Pour la description de l'invention et la compréhension des revendications, on adoptera à titre non limitatif et sans référence limitative à la gravité terrestre les orientations verticale, longitudinale et transversale selon le repère V, L, T indiqué aux figures dont les axes longitudinal L et transversal T s'étendent dans un plan horizontal.For the description of the invention and the understanding of the claims, the vertical, longitudinal and transverse orientations according to the reference V, L, T indicated in the figures whose longitudinal axes L and transverse T extend in a horizontal plane.

Par convention, l'axe longitudinal L est orienté de l'arrière vers l'avant.By convention, the longitudinal axis L is oriented from the rear to the front.

Dans la description qui va suivre, des éléments identiques, similaires ou analogues seront désignés par les mêmes chiffres de référence.In the following description, identical, similar or analogous elements will be designated by the same numbers. reference.

Premier mode de réalisation à deux lames internes de contactFirst embodiment with two internal contact blades

On a représenté aux figures 1 à 5 un exemple de réalisation d'un commutateur électrique 100 qui présente ici une symétrie générale de conception par rapport au plan vertical et longitudinal médian PVM indiqué à la figure 3.We represented at figures 1 to 5 an exemplary embodiment of an electrical switch 100 which here has a general design symmetry with respect to the median vertical and longitudinal plane PVM indicated in picture 3 .

Le commutateur électrique 100 comporte un boîtier 10 en deux parties supérieure 12 et inférieure 14 qui loge une double lame interne de contact 16 et un actionneur 18.The electrical switch 100 comprises a housing 10 in two upper 12 and lower 14 parts which houses a double internal contact blade 16 and an actuator 18.

La partie supérieure 12 est une pièce moulée en matière plastique isolante de forme générale parallélépipédique rectangle et qui définit un logement interne 20 délimité par une paroi supérieure horizontale 22, deux parois latérales verticales et longitudinales 24, et par une paroi verticale et transversale avant 26.The upper part 12 is a molded part made of insulating plastic material of generally rectangular parallelepipedic shape and which defines an internal housing 20 delimited by a horizontal upper wall 22, two vertical and longitudinal side walls 24, and by a vertical and transverse front wall 26.

La face transversale arrière 28 est ouverte, de même que la face inférieure horizontale 30.The rear transverse face 28 is open, as is the horizontal underside 30.

La paroi supérieure 22 comporte une lumière centrale débouchante 32 qui est délimitée par un bord transversal avant incliné 34, par un bord transversal arrière incliné 36 et par deux faces verticales longitudinales 38 d'orientation longitudinale.The upper wall 22 comprises a through central opening 32 which is delimited by an inclined front transverse edge 34, by an inclined rear transverse edge 36 and by two longitudinal vertical faces 38 of longitudinal orientation.

La face interne 23 de la paroi supérieure 22 comporte ici deux plots verticaux 40 pour la fixation par sertissage à chaud de la lame interne de contact 16, qui sont agencés longitudinalement à proximité de la face transversale arrière ouverte 28.The internal face 23 of the upper wall 22 here comprises two vertical studs 40 for fixing by hot crimping the internal contact blade 16, which are arranged longitudinally close to the open rear transverse face 28.

La face inférieure ouverte 30 comporte trois plots verticaux 42 agencés en triangle pour la fixation par sertissage à chaud de la partie inférieure 14.The open lower face 30 comprises three vertical studs 42 arranged in a triangle for fixing the lower part 14 by hot crimping.

Sensiblement à mi-longueur, chaque paroi latérale 24 comporte un logement semi-cylindrique concave 44 qui est débouchant verticalement vers le bas.Substantially at mid-length, each side wall 24 includes a concave semi-cylindrical housing 44 which opens vertically downwards.

Transversalement de part et d'autre de la lumière centrale 32, et sensiblement à mi-longueur, la paroi supérieure 22 comporte un ergot de verrouillage 46 à profil sensiblement en V.Transversely on either side of the central slot 32, and substantially at mid-length, the upper wall 22 comprises a locking lug 46 with a substantially V-shaped profile.

Les ergots de verrouillage 46 sont légèrement décalés longitudinalement vers l'avant par rapport à l'axe central A des logements 44 (Voir figure 10).The locking lugs 46 are slightly offset longitudinally forward relative to the central axis A of the housings 44 (see figure 10 ).

La partie inférieure 14 du boitier 10 est ici une pièce en tôle métallique conductrice qui est réalisée par découpe et pliage.The lower part 14 of the box 10 is here a piece of conductive metal sheet which is produced by cutting and bending.

La partie inférieure comporte une plaque inférieure rectangulaire horizontale 50 qui se prolonge latéralement par deux joues latérales verticales et longitudinales 52.The lower part comprises a horizontal rectangular lower plate 50 which is extended laterally by two vertical and longitudinal side cheeks 52.

Les dimensions de la partie inférieure 14 sont complémentaires de celles de la partie supérieure de telle sorte que, en position assemblée, les joues latérales 52 s'étendent chacune le long d'une face externe 25 d'une paroi latérale 24, et sensiblement sur toute la hauteur de la partie supérieure 12.The dimensions of the lower part 14 are complementary to those of the upper part so that, in the assembled position, the side flanges 52 each extend along an outer face 25 of a side wall 24, and substantially on the full height of the top 12.

A son extrémité longitudinale arrière 54, chaque joue latérale se prolonge par une patte de raccordement électrique 56 qui s'étend vers l'extérieur dans un plan vertical et transversal.At its rear longitudinal end 54, each side flange is extended by an electrical connection lug 56 which extends outwards in a vertical and transverse plane.

Pour la fermeture du boîtier 10, la plaque inférieure horizontale 50 comporte trois trous 60 agencés en triangle dont chacun est traversé verticalement par un plot vertical 42 de la partie supérieure 12.For closing the case 10, the horizontal lower plate 50 comprises three holes 60 arranged in a triangle, each of which is crossed vertically by a vertical stud 42 of the upper part 12.

A l'issue de l'assemblage et de la fixation par sertissage à chaud, la périphérie de la face supérieure 51 de la plaque inférieure 50 est en appui contre les portions en vis-à-vis de la face inférieure 30 de la partie inférieure.After assembly and fixing by hot crimping, the periphery of the upper face 51 of the lower plate 50 bears against the facing portions of the lower face 30 of the lower part .

La plaque inférieure horizontale 50 comporte deux branches 62 de rappel élastique.The horizontal lower plate 50 comprises two branches 62 of elastic return.

Chaque branche de rappel 62 est réalisée par découpe et pliage et son tronçon actif d'extrémité libre avant 64 est repliée vers l'intérieur du logement interne de la partie supérieure 12 du boîtier 10.Each return branch 62 is produced by cutting and bending and its active front free end section 64 is folded inwardly of the internal housing of the upper part 12 of the casing 10.

De par sa conception, chaque branche de rappel 62 est apte à se déformer élastiquement, notamment vers le bas. Aux figures 1 à 10, les branches de rappel élastique 62 sont représentées dans leur état non contraint élastiquement.By design, each return branch 62 is able to deform elastically, in particular downwards. To figures 1 to 10 , the elastic return branches 62 are shown in their elastically unconstrained state.

La lame interne de contact 16 est ici une lame double, de conception symétrique par rapport au plan PVM, qui est réalisée dans une tôle métallique conductrice par découpe et pliage.The internal contact blade 16 is here a double blade, of symmetrical design with respect to the plane PVM, which is produced in a conductive metal sheet by cutting and bending.

Les deux lames internes de contact électrique proprement dites sont reliées entre elles par une traverse horizontale 66 de fixation.The two internal electrical contact blades themselves are interconnected by a horizontal crosspiece 66 for fixing.

Pour la fixation de chaque lame interne de contact électrique, la traverse 66 comporte deux trous 68 espacés transversalement et dont chacun est traversé verticalement par un plot vertical 40 de la partie supérieure 12.For fixing each internal electrical contact blade, the crosspiece 66 comprises two holes 68 spaced apart transversely and each of which is crossed vertically by a vertical stud 40 of the upper part 12.

Chaque lame interne de contact 16 comporte, successivement et longitudinalement d'arrière en avant, un tronçon arrière de fixation 70, un tronçon intermédiaire d'actionnement 72 et un tronçon avant de contact 74.Each internal contact blade 16 comprises, successively and longitudinally from rear to front, a rear fixing section 70, an intermediate actuation section 72 and a front contact section 74.

Le tronçon arrière de fixation 70, auquel est rattachée la traverse 66 pour sa fixation sous la face inférieure 23 de la paroi supérieure 22 de la partie supérieure 12 du boîtier 10, s'étend ici horizontalement.The rear fixing section 70, to which the crosspiece 66 is attached for its fixing under the lower face 23 of the upper wall 22 of the upper part 12 of the casing 10, here extends horizontally.

Chaque tronçon arrière de fixation 70 est ici prolongé longitudinalement vers l'arrière par un tronçon externe 76 de raccordement électrique qui est ici conformée en une broche de piquage qui fait saillie longitudinalement au-delà de la face transversale arrière ouverte 28.Each rear attachment section 70 is here extended longitudinally towards the rear by an external electrical connection section 76 which is here shaped as a tapping pin which projects longitudinally beyond the open rear transverse face 28.

Au repos, c'est-à-dire sans action de l'actionneur 18 sur les lames internes de contact 16, chaque tronçon intermédiaire d'actionnement 72 s'étend horizontalement dans le prolongement des tronçons 70 et 76, à l'intérieur du logement 20, sensiblement à mi-hauteur (Voir figures 9 et 10).At rest, that is to say without action of the actuator 18 on the internal contact blades 16, each intermediate actuation section 72 extends horizontally in the extension of the sections 70 and 76, inside the housing 20, substantially halfway up (See figure 9 and 10 ).

Chaque tronçon d'actionnement 72 est délimité par une face inférieure plane 73.Each actuation section 72 is delimited by a flat lower face 73.

A partir de son extrémité longitudinale avant, chaque tronçon intermédiaire d'actionnement 72 se prolonge vers l'avant par un tronçon avant de contact 74 qui est incliné verticalement vers le bas et qui se termine par une extrémité coudée 78 dont la convexité est orientée vers la face supérieure interne 51 de la plaque inférieure horizontale 50.From its front longitudinal end, each intermediate actuation section 72 is extended forward by a front contact section 74 which is inclined vertically downwards and which ends in an angled end 78 whose convexity is oriented towards the internal upper face 51 of the horizontal lower plate 50.

Au repos, c'est-à-dire sans action de l'actionneur 18 sur les lames internes de contact 16, chaque tronçon avant de contact 74 est conformé de telle manière que son extrémité libre coudée 78 est en appui élastique de contact vers le bas contre une portion en vis-à-vis de la face supérieure 51 de la plaque inférieure 50. Cette portion en vis-à-vis de la face supérieure 51 de la plaque inférieure 50 constitue une piste inférieure fixe de contact électrique pour établir une voie de commutation électrique entre la plaque inférieure 50 et ses pattes de raccordement électrique 56 d'une part, et les tronçons à piquer de raccordement 76 d'autre part.At rest, that is to say without action of the actuator 18 on the internal contact blades 16, each front contact section 74 is shaped in such a way that its bent free end 78 is in elastic contact support towards the bottom against a portion facing the upper face 51 of the lower plate 50. This portion facing the upper face 51 of the lower plate 50 constitutes a fixed lower electrical contact track to establish a electrical switching path between the lower plate 50 and its electrical connection lugs 56 on the one hand, and the connecting sections 76 on the other hand.

Cet état « au repos » des lames internes de contact 16, et donc du commutateur électrique 100, correspond à l'état normalement fermé NC du commutateur.This "at rest" state of the internal contact blades 16, and therefore of the electric switch 100, corresponds to the normally closed state NC of the switch.

Son actionnement, et donc son changement d'état, vise à interrompre la voie établie de commutation électrique en soulevant les extrémités libres coudées 78 verticalement vers le haut de manière à ce qu'elles ne soient plus en contact avec les portions en vis-à-vis de la face supérieure 51 de la plaque inférieure 50.Its actuation, and therefore its change of state, aims to interrupt the established path of electrical switching by lifting the bent free ends 78 vertically upwards so that they are no longer in contact with the facing portions. - screws of the upper face 51 of the lower plate 50.

Ce déplacement vers le haut est obtenu par déformation élastique des lames internes de contact 16 en agissant sur les tronçons intermédiaires 72 d'actionnement.This upward movement is obtained by elastic deformation of the internal contact blades 16 by acting on the intermediate sections 72 for actuation.

Un tel actionnement et changement d'état vers un état ouvert est réalisé au moyen de l'actionneur 18.Such actuation and change of state to an open state is achieved by means of actuator 18.

L'actionneur 18 se présente globalement sous la forme d'un arbre transversal interne d'actionnement 80 et d'un bras d'entraînement 82.Actuator 18 generally takes the form of an internal transverse actuation shaft 80 and a drive arm 82.

L'arbre interne 80 et son bras d'entraînement 82 sont ici réalisés en une seule pièce par moulage en matière plastique.The internal shaft 80 and its drive arm 82 are here produced in a single piece by molding in plastic material.

Pour son montage à rotation, pivotant dans les deux sens, par rapport au boîtier 10, l'arbre transversal interne comporte, à chacune de ses deux extrémités transversales opposées, un tourillon cylindrique 84 qui est reçu à rotation, quasiment sans jeu, dans un logement complémentaire 44 de la partie supérieure 12 à l'intérieur duquel il est maintenu emprisonné par la plaque inférieure 50.For its rotational mounting, pivoting in both directions, relative to the housing 10, the internal transverse shaft comprises, at each of its two opposite transverse ends, a cylindrical journal 84 which is received in rotation, almost without play, in a complementary housing 44 of the upper part 12 inside which it is held imprisoned by the lower plate 50.

L'arbre d'actionnement est ainsi monté à rotation autour de l'axe A.The actuating shaft is thus mounted for rotation around the axis A.

Dans sa portion centrale, l'arbre interne 80 se prolonge par un bras rectiligne d'entraînement en rotation.In its central portion, the internal shaft 80 is extended by a rectilinear arm for driving in rotation.

A titre non limitatif, lorsque le commutateur est dans son état de repos normalement illustré aux figures 1 à 10, le bras d'entraînement 82 s'étend verticalement à travers la lumière centrale 32 au-dessus de la paroi supérieure 22.On a non-limiting basis, when the switch is in its resting state normally illustrated in figures 1 to 10 , drive arm 82 extends vertically through central lumen 32 above top wall 22.

Le bras d'entraînement 82 est légèrement décalé longitudinalement vers l'arrière par rapport au plan vertical passant par l'axe de rotation A.The drive arm 82 is slightly offset longitudinally rearward relative to the vertical plane passing through the axis of rotation A.

La largeur transversale du bras d'entraînement 82 est légèrement inférieure à la largeur transversale de la lumière centrale 32.The transverse width of drive arm 82 is slightly less than the transverse width of central lumen 32.

Les positions angulaires maximales que l'actionneur 18 peut atteindre dans les deux sens correspondent à la venue en butée du bras d'entraînement 82 avec le bord transversal avant incliné 34 ou avec le bord transversal arrière incliné 36.The maximum angular positions that the actuator 18 can reach in both directions correspond to the coming into abutment of the drive arm 82 with the inclined front transverse edge 34 or with the inclined rear transverse edge 36.

De part et d'autre du bras d'entraînement 82, l'arbre interne 80 comporte un ergot de verrouillage 86 qui est apte à coopérer un cran de verrouillage en vis-à-vis 46.On either side of the drive arm 82, the internal shaft 80 comprises a locking lug 86 which is capable of cooperating with a locking notch 46 facing each other.

Comme on peut le voir à la figure 10, dans l'état de repos illustré aux figures 1 à 10, l'extrémité supérieure de profil cylindrique de l'ergot de verrouillage 86 est légèrement décalé longitudinalement vers l'avant et s'étend en vis-à-vis du cran de verrouillage associé 46.As can be seen at the figure 10 , in the state of rest illustrated in figures 1 to 10 , the upper end of the cylindrical profile of the locking lug 86 is slightly offset longitudinally forwards and extends opposite the associated locking notch 46.

L'ensemble constitué par un ergot de verrouillage 46 et un cran de verrouillage 86 constitue des moyens de verrouillage du bras d'entraînement 82, et donc de la lame interne double de contact 16, dans sa deuxième position haute stable dans laquelle la voie de commutation électrique est interrompue.The assembly consisting of a locking lug 46 and a locking notch 86 constitutes means for locking the drive arm 82, and therefore the double internal contact blade 16, in its second stable high position in which the electrical switching is interrupted.

Pour pouvoir faire pivoter le bras d'entraînement 82 dans le sens horaire en considérant la figure 10, on doit appliquer au bras d'entraînement 82 un effort dans le même sens d'une valeur suffisante pour, par déformation élastique de la cloison supérieure, escamoter le cran de verrouillage 46 et faire passer l'ergot de verrouillage 86 angulairement de l'autre côté.In order to be able to pivot the drive arm 82 clockwise considering the figure 10 , one must apply to the drive arm 82 a force in the same direction of a value sufficient to, by elastic deformation of the upper partition, retract the locking notch 46 and cause the locking lug 86 to pass angularly from the other side.

Entre chaque tourillon d'extrémité 84 et le bras central d'entraînement 82, l'arbre interne 80 comporte une came 88 de commande des déformations des lames internes de contact 16. En section, le profil de came de chaque came de commande 88 est globalement triangulaire et comporte un tronçon supérieur horizontal plan 92 qui se termine par un coude avant 94 et par un coude arrière 96 de commande.Between each end pin 84 and the central drive arm 82, the internal shaft 80 comprises a cam 88 for controlling the deformations of the internal contact blades 16. In section, the cam profile of each control cam 88 is generally triangular and has a flat horizontal upper section 92 which ends in a front elbow 94 and a rear elbow 96 for control.

Chaque coude 94, 96 est en forme d'arc de cylindre convexe.Each bend 94, 96 is in the form of a convex cylinder arc.

Le coude avant 94 se prolonge vers le bas par un tronçon plan incliné 98.The front elbow 94 is extended downwards by an inclined plane section 98.

Chaque came 88 est agencée transversalement au droit d'une branche de rappel 62 et chaque tronçon plan incliné 98 du profil de came s'étend avec jeu en regard d'un tronçon actif d'extrémité libre avant 64.Each cam 88 is arranged transversely in line with a return leg 62 and each inclined plane section 98 of the cam profile extends with play opposite an active front free end section 64.

Dans la position de repos, la face supérieure du tronçon supérieur horizontal plan 92 s'étend ici avec un léger jeu vertical par rapport à la face inférieure 73 du tronçon d'actionnement associé 72.In the rest position, the upper face of the flat horizontal upper section 92 extends here with a slight vertical play by relative to the lower face 73 of the associated actuation section 72.

On décrira maintenant le fonctionnement du commutateur électrique 100.The operation of the electrical switch 100 will now be described.

Aux figures 1 à 10, le commutateur 100 est représenté dans une position de repos dans laquelle la voie de commutation électrique est établie par chacun des deux tronçons avant de contact 74 de la lame double interne de contact 16, chaque lame interne 16 étant dans une position basse par rapport à la plaque inférieure 50.To figures 1 to 10 , the switch 100 is shown in a rest position in which the electrical switching path is established by each of the two front contact sections 74 of the internal double contact blade 16, each internal blade 16 being in a low position with respect to bottom plate 50.

C'est un état (ou position) dit normalement fermé NC du commutateur électrique.It is a state (or position) called normally closed NC of the electrical switch.

A partir de cet état normalement fermé NC, et pour provoquer un changement d'état du commutateur électrique, il faut appliquer au bras d'entraînement 82 un effort d'actionnement pour le faire pivoter dans le sens antihoraire en considérant les figures 9 et 10 et entraîner ainsi l'arbre interne 80 d'actionnement en pivotement dans le même sens.From this normally closed state NC, and to cause a change of state of the electrical switch, it is necessary to apply to the drive arm 82 an actuating force to make it pivot in the counterclockwise direction, considering the figure 9 and 10 and thus cause the inner actuating shaft 80 to pivot in the same direction.

Ce pivotement provoque la coopération du coude arrière 96 de commande avec le tronçon d'actionnement associé 72 de la lame interne 16 et un soulèvement du tronçon avant de contact 74.This pivoting causes the cooperation of the rear control elbow 96 with the associated actuation section 72 of the internal blade 16 and a lifting of the front contact section 74.

Il en résulte un soulèvement verticalement vers le haut de l'extrémité libre 78 qui n'est plus en contact avec la portions en vis-à-vis de la face supérieure 51 de la plaque inférieure 50. Chaque lame interne 16 est alors dans une première position haute par rapport à la plaque inférieure 50.This results in a lifting vertically upwards of the free end 78 which is no longer in contact with the portions facing the upper face 51 of the lower plate 50. Each internal blade 16 is then in a first high position with respect to the lower plate 50.

L'ouverture du contact électrique 51-78 est quasi immédiate, mais la course angulaire d'actionnement par pivotement du bras d'actionnement 82 peut être poursuivie. Le commutateur électrique 100 présente ainsi une capacité d'absorption d'une grande surcourse d'actionnement.The opening of the electrical contact 51-78 is almost immediate, but the angular actuation stroke by pivoting of the actuation arm 82 can be continued. The electrical switch 100 thus has a capacity to absorb a large actuation overtravel.

C'est une première position instable ouverte NOi du commutateur électrique dans laquelle la voie de commutation électrique est interrompue.This is a first open unstable position NOi of the electrical switch in which the electrical switching path is interrupted.

Cette position ou état NOi est instable car, dès que l'on cesse d'appliquer un effort d'actionnement sur le bras d'actionnement 82, l'actionneur 18 est rappelé élastiquement vers sa position angulaire centrale de repos par l'action des branches de rappel 62.This position or state NOi is unstable because, as soon as one ceases to apply an actuating force to the actuating arm 82, the actuator 18 is elastically returned to its central angular position of rest by the action of the recall branches 62.

En effet, outre le changement d'état NC->NOi du commutateur électrique, la course angulaire d'actionnement par pivotement du bras d'actionnement 82 a provoqué simultanément la déformation élastique de chacune des branches de rappel 62, du fait de l'effort qui est appliqué à chaque branche de rappel 62 par le tronçon plan incliné 98 de la came associée 88.Indeed, in addition to the change of state NC->NOi of the electrical switch, the angular actuation stroke by pivoting of the actuation arm 82 simultaneously caused the elastic deformation of each of the return branches 62, due to the force which is applied to each return branch 62 by the inclined plane section 98 of the associated cam 88.

Lorsque l'effort d'actionnement appliqué au bras d'actionnement 82 est relâché, les branches de rappel 62 exercent leur effort de rappel sur l'arbre interne 80 qui retourne à sa position angulaire centrale de repos.When the actuating force applied to the actuating arm 82 is released, the return branches 62 exert their return force on the internal shaft 80 which returns to its central angular position of rest.

A l'effort de rappel exercé par les branches de rappel 62, s'ajoute un effort de rappel supplémentaire qui est ici exercé par les deux tronçons avant de contact 74 qui coopèrent avec les coudes arrière 96.To the return force exerted by the return branches 62, is added an additional return force which is here exerted by the two front contact sections 74 which cooperate with the rear elbows 96.

A partir de la position normalement fermée NC, et pour provoquer un verrouillage temporaire du commutateur électrique dans un état ouvert stable NOs, il faut appliquer au bras d'entraînement 82 un effort d'actionnement pour le faire pivoter dans le sens horaire en considérant les figures 9 et 10 et entraîner ainsi l'arbre interne 80 d'actionnement en pivotement dans le même sens horaire.From the normally closed position NC, and to cause temporary locking of the electric switch in a stable open state NOs, it is necessary to apply to the drive arm 82 an actuation force to make it pivot clockwise, considering the figure 9 and 10 and thus cause the inner actuating shaft 80 to pivot in the same clockwise direction.

Ce pivotement provoque la coopération du coude avant 94 de commande avec le tronçon d'actionnement associé 72 et un soulèvement du tronçon avant de contact 74 de chaque lame interne 16.This pivoting causes the cooperation of the front control elbow 94 with the associated actuating section 72 and a lifting of the front contact section 74 of each internal blade 16.

Il en résulte un soulèvement de l'extrémité libre 78 verticalement vers le haut qui n'est plus en contact avec la portions en vis-à-vis de la face supérieure 51 de la plaque inférieure 50.This results in a lifting of the free end 78 vertically upwards which is no longer in contact with the portions facing the upper face 51 of the lower plate 50.

Chaque lame interne 16 est alors dans une deuxième position haute par rapport à la plaque inférieure 50.Each internal blade 16 is then in a second high position relative to the lower plate 50.

L'ouverture du contact électrique 51-78 est quasi immédiate. C'est une deuxième position ouverte stable NOs du commutateur électrique dans laquelle la voie de commutation électrique est interrompue.The opening of the electrical contact 51-78 is almost immediate. It is a second stable open position NOs of the electrical switch in which the electrical switching path is interrupted.

Cette position ou état NOs est stable car, lorsque l'on cesse d'appliquer un effort d'actionnement au bras d'actionnement 82, ce dernier reste verrouillé angulairement par les moyens de verrouillage 46-86.This position or state NOs is stable because, when an actuating force is ceased to be applied to the actuating arm 82, the latter remains angularly locked by the locking means 46-86.

En effet, en pivotant dans le sens horaire, le bras d'entraînement 82 a provoqué une déformation élastique de la cloison supérieure pour escamoter le cran de verrouillage 46 et faire passer l'ergot de verrouillage 86 angulairement de l'autre côté.Indeed, by pivoting clockwise, the drive arm 82 has caused an elastic deformation of the upper partition to retract the locking notch 46 and cause the locking lug 86 to pass angularly to the other side.

Lorsque l'effort d'actionnement appliqué au bras d'actionnement 82 est relâché, ce dernier reste verrouillé et le commutateur électrique reste dans son état stable ouvert.When the actuating force applied to the actuating arm 82 is released, the latter remains locked and the electrical switch remains in its stable open state.

Pour déverrouiller le commutateur électrique 100, il faut appliquer au bras d'entraînement 82 un effort de déverrouillage - pour le faire pivoter dans le sens horaire - d'une valeur suffisante pour (par déformation élastique de la cloison supérieure) escamoter à nouveau le cran de verrouillage 46 et faire passer l'ergot de verrouillage 86 angulairement de l'autre côté du cran de verrouillage 46.To unlock the electrical switch 100, it is necessary to apply to the drive arm 82 an unlocking force - to make it pivot clockwise - of a value sufficient to (by elastic deformation of the upper partition) retract the notch lock 46 and pass the locking lug 86 angularly on the other side of the locking notch 46.

L'arbre d'entraînement 80 est alors à nouveau dans sa position angulaire centrale et la voie de commutation électrique est rétablie.The drive shaft 80 is then again in its central angular position and the electrical switching path is restored.

La conception double de la lame interne 16 de contact permet, pour certaines applications, de disposer d'une redondance de contact qui est utile si par exemple le commutateur électrique n'est pas étanche et qu'une impureté s'introduit entre l'extrémité libre 78 et la face supérieure 51.The double design of the internal blade 16 of contact makes it possible, for certain applications, to have contact redundancy which is useful if, for example, the electrical switch is not sealed and that an impurity is introduced between the free end 78 and the upper face 51.

Deuxième mode de réalisation à une seule lame interne de contactSecond embodiment with a single internal contact blade

On décrira le deuxième mode de réalisation illustré aux figures 12 à 23 par comparaison avec le premier mode de réalisation.The second embodiment illustrated in figures 12 to 23 compared with the first embodiment.

Il en diffère essentiellement par la conception de la lame interne de contact 16 qui est simple, par la conception des moyens de verrouillage du bras d'entraînement 82, et par la conception des moyens de raccordement électrique de la plaque inférieure 50.It differs essentially by the design of the internal contact blade 16 which is simple, by the design of the locking means of the drive arm 82, and by the design of the electrical connection means of the lower plate 50.

La lame interne de contact 16 est simple, c'est-à-dire qu'elle ne comporte qu'une seule partie avec un tronçon intermédiaire d'actionnement 72 et un tronçon avant de contact 74, 78.The internal contact blade 16 is simple, that is to say it comprises only one part with an intermediate actuation section 72 and a front contact section 74, 78.

L'autre tronçon 72' de conception symétrique et analogue à celle du tronçon d'actionnement 72, ne se prolonge pas par un tronçon de contact et n'a donc pas de fonction d'établissement ou d'interruption d'un contact électrique.The other section 72' of symmetrical design and similar to that of the actuation section 72, is not extended by a contact section and therefore has no function of establishing or interrupting an electrical contact.

Par contre il coopère par sa face inférieure horizontale 73' avec le tronçon supérieur horizontal plan 92' en vis-à-vis de la came de commande associée 88' pour déterminer de manière fiable la position angulaire centrale de repos de l'arbre d'actionnement 80. Le tronçon 72' exerce ainsi une fonction de stabilisation de l'arbre d'actionnement 80 en position de repos.On the other hand, it cooperates via its horizontal lower face 73' with the flat horizontal upper section 92' facing the associated control cam 88' to reliably determine the central angular position of rest of the drive shaft. actuation 80. The section 72' thus exerts a function of stabilizing the actuation shaft 80 in the rest position.

Son effet de rappel élastique complémentaire peut aussi être augmenté, par exemple en lui conférant une rigidité plus grande que celle du tronçon d'actionnement 72, ou bien en pliant ou en cambrant initialement le tronçon 72' de façon qu'il exerce une précontrainte sur le tronçon supérieur horizontal plan 92' en vis-à-vis de la came de commande associée 88'.Its complementary elastic return effect can also be increased, for example by giving it greater rigidity than that of the actuating section 72, or by bending or initially bending the section 72' so that it exerts a prestress on the flat horizontal upper section 92' facing the associated control cam 88'.

S'agissant des moyens de verrouillage temporaire en position normalement ouvert stable NOs (Voir notamment les figures 18 et 21), le cran de verrouillage 46 est une fenêtre qui est formée dans une patte déformable élastiquement 99 qui est réalisée centralement dans la plaque inférieure 50, transversalement entre les deux branches de rappel élastique 62.With regard to temporary locking means in the stable normally open position NOs (See in particular the figure 18 and 21 ), the locking notch 46 is a window which is formed in an elastically deformable tab 99 which is made centrally in the lower plate 50, transversely between the two elastic return branches 62.

L'ergot complémentaire de verrouillage 86 est formé à la partie inférieure de l'actionneur 18.The complementary locking lug 86 is formed at the bottom of the actuator 18.

Plus précisément, dans sa partie centrale au droit du bras d'actionnement 82, l'arbre d'entraînement 80 comporte un ergot en forme de bec qui est apte à être reçu dans la fenêtre 46 lorsque le commutateur électrique est verrouillé dans son état stable ouvert NOs (Voir figure 21).More specifically, in its central part in line with the actuating arm 82, the drive shaft 80 includes a beak-shaped lug which is adapted to be received in the window 46 when the electrical switch is locked in its stable state. open NOs (See figure 21 ).

Le profil arrière de l'ergot de verrouillage 86 est conformé pour permettre le déverrouillage.The rear profile of the locking pin 86 is shaped to allow unlocking.

En lieu et place des pattes de raccordement électrique, la plaque inférieure 50 comporte deux broches 56 de piquage qui font saillie longitudinalement au-delà de la face transversale arrière ouverte 28, comme les tronçons 76 de raccordement électrique de la lame interne de contact.Instead of the electrical connection lugs, the lower plate 50 comprises two tapping pins 56 which protrude longitudinally beyond the open rear transverse face 28, like the electrical connection sections 76 of the internal contact blade.

Le fonctionnement du commutateur électrique 100 selon ce deuxième exemple de réalisation est identique à celui qui a été décrit précédemment en référence au premier mode de réalisation et qui est illustré en détail aux figures 16 à 21.The operation of the electrical switch 100 according to this second example embodiment is identical to that which has been described previously with reference to the first embodiment and which is illustrated in detail in figures 16 to 21 .

Comme on peut le voir aux figures 22 et 23 un commutateur électrique 100 selon l'invention peut être monté sur une face 104 d'une carte électronique comportant notamment une plaque à circuits imprimés 102 qui est délimitée par un bord 106 pour constituer un ensemble 200.As can be seen at figure 22 and 23 an electrical switch 100 according to the invention can be mounted on a face 104 of an electronic card comprising in particular a printed circuit board 102 which is delimited by an edge 106 to form an assembly 200.

Le commutateur 100 est voisin du bord 106 de la plaque 102 et, comme on peut le voir à la figure 23, la face extérieure de sa paroi 22 est sensiblement alignée avec le bord 106.Switch 100 is adjacent to edge 106 of plate 102 and, as can be seen in figure 23 , the outer face of its wall 22 is substantially aligned with the edge 106.

Un tel montage et positionnement du commutateur électrique 100 peut, si l'ensemble 200 est mis en place dans un appareil électronique (non représenté) selon la direction indiquée par la flèche F de la figure 23, permettre un déverrouillage automatique du commutateur électrique 100 par la venue en contact du bras d'actionnement 82 avec une partie en vis-à-vis de l'appareil électronique, ou appartenant à des moyens d'assemblage automatisés.Such mounting and positioning of the electrical switch 100 can, if the assembly 200 is placed in an electronic device (not shown) in the direction indicated by the arrow F of the figure 23 , enable automatic unlocking of the electrical switch 100 by the actuation arm 82 coming into contact with a part facing the electronic device, or belonging to automated assembly means.

Claims (15)

  1. Electric switch (100) of the normally closed type comprising:
    - a housing (10) comprising an upper part (12) made of insulating material and a complementary lower part (14) that supports a fixed internal contact track;
    - an internal contact blade (16) that is supported by the upper part (12) and that is resiliently deformable in order to assume:
    * a bottom rest position (NC), in which it is in downwards resilient abutment on the lower fixed contact track (51) in order to establish an electric switching way;
    * a first high non-stable position (NOi), in which the electric switching way is interrupted; and
    * a second high stable position (NOs), in which the electric switching way is interrupted and in which the internal contact blade (16) is locked by retractable locking means (46, 86);
    - a actuator (18) to control the deformation of the internal contact blade (16), which actuator, from a rest position in which the internal contact blade is in its bottom rest position and towards which it is resiliently returned, is pivotably mounted, about a horizontal axis (A), between:
    * a first angular actuating position, in which the internal contact blade (16) is in its first high non-stable position; and
    * a second angular actuating position, in which the internal contact blade (16) is in its second high stable position.
  2. Electric switch (100) according to Claim 1, characterized in that the rest position of the actuator (18) is an intermediate angular position between its first and second angular positions for activating the internal contact blade (16).
  3. Electric switch (100) according to one of Claims 1 and 2, characterized in that the internal contact blade (16) successively comprises:
    - a rear section (70) for fixing it to the upper part (12) of the housing (10);
    - an intermediate actuating section (72); and
    - a front contact section (74, 78), which, in the bottom rest position (NC) of the internal contact blade (16), is in downwards resilient abutment on the lower fixed contact track (51) in order to establish said electric switching way,
    and in that the actuator (18) comprises a control cam (88), the cam profile (92, 94, 96) of which engages with the intermediate actuating section (72) of the internal contact blade (16).
  4. Electric switch (100) according to Claim 3, characterized in that the resiliently deformable internal contact blade (16) engages with the control cam (88) of the actuator (18) to assist the resilient return of the actuator (18) towards its rest position.
  5. Electric switch (100) according to one of Claims 3 and 4, characterized in that the intermediate actuating section (72) of the internal contact blade (16) extends substantially horizontally above the control cam (88) and above the pivot axis (A) of the actuator (18).
  6. Electric switch (100) according to the preceding claim, characterized in that the pivot axis (A) of the actuator (18) is located inside the housing (10).
  7. Electric switch (100) according to any one of the preceding claims, characterized in that the upper part (12) of the housing comprises a locking notch (46), and in that the actuator (18) comprises a locking lug (86) that engages with the locking notch (46) in order to lock the internal contact blade (16) in its second high stable position (NOs).
  8. Electric switch (100) according to any one of Claims 1 to 6, characterized in that the lower part (14) of the housing comprises a locking notch (46), and in that the actuator (18) comprises a locking lug (86) that engages with the locking notch (46) for locking the internal contact blade (16) in its second high stable position (NOs).
  9. Electric switch according to any one of the preceding claims, characterized in that it comprises an internal blade for stabilizing the actuator (18) that comprises a stabilization section (72'),
    and in that the actuator (18) comprises a control cam (88'), the cam profile (92') of which engages with the stabilization section (72') of the internal stabilization blade.
  10. Electric switch (100) according to any one of the preceding claims, characterized in that the lower part (14) of the housing (10) comprises a horizontal lower plate (50) for closing the housing (10), and in that said fixed internal contact track is a portion of the upper face (51) of this lower plate (50).
  11. Electric switch (100) according to Claim 9, characterized in that the lower plate (50) of the lower part (14) of the housing (10) comprises a resiliently deformable branch (62) that engages with a complementary portion (96) opposite the actuator (18) to assist the resilient return of the actuator (18) from its first angular actuating position to its rest position.
  12. Electric switch (100) according to Claim 9 in combination with Claim 8, characterized in that the lower plate (50) of the lower part (14) of the housing (10) comprises a resiliently deformable tab (99) that comprises said locking notch (46).
  13. Electric switch (100) according to any one of the preceding claims, characterized in that the actuator (18) comprises an arm (82) for causing the actuator (18) to pivot in both directions, which arm vertically projects upwards through the upper part (12) of the housing (10).
  14. Electric switch (100) according to any one of the preceding claims, characterized in that said second high stable position (NOs) of the internal contact blade (16) corresponds to an initial delivery state of the electric switch (100).
  15. Assembly (200) comprising an electronic board (102) and a switch according to any one of the preceding claims, characterized in that the electric switch (100) is mounted on a face (104) of the electronic board and is adjacent to an edge (106) of the electronic board (102) so that, if the assembly (200) is placed in an electronic appliance, the internal contact blade (16) of the electric switch is automatically unlocked as a result of its actuator coming into contact with a portion opposite the electronic appliance or belonging to assembly means.
EP20194561.5A 2019-10-25 2020-09-04 Miniature electric switch of the normally closed type comprising an open contact locking position Active EP3813089B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1911956A FR3102606B1 (en) 2019-10-25 2019-10-25 Normally closed type miniature electric switch featuring a contact open latching position

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EP3813089A1 EP3813089A1 (en) 2021-04-28
EP3813089B1 true EP3813089B1 (en) 2022-03-30

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EP (1) EP3813089B1 (en)
CN (1) CN112735867A (en)
FR (1) FR3102606B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11181257B1 (en) * 2020-09-25 2021-11-23 Streamlight, Inc. Flashlight assembly having rotary cam-actuated push-button switch

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2725438A (en) * 1952-09-15 1955-11-29 Arrow Hart & Hegeman Electric Alternating current switch mechanism
AT250484B (en) * 1961-06-07 1966-11-10 Angelo Teruzzi Electric switch
US6040543A (en) * 1999-08-13 2000-03-21 Egs Electrical Group Llc Explosion proof toggle switch
US6762379B1 (en) * 2003-04-08 2004-07-13 Shin Jiuh Corp. Micro switch
US8383975B2 (en) * 2011-01-28 2013-02-26 Zippy Technology Corp. Enhanced withstand voltage micro switch
JP5835037B2 (en) * 2012-03-14 2015-12-24 オムロン株式会社 switch
US9218926B1 (en) * 2013-03-15 2015-12-22 E.M.B. Corporation Normally-closed switch with positive stops

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US11107641B2 (en) 2021-08-31
US20210125794A1 (en) 2021-04-29
FR3102606A1 (en) 2021-04-30
FR3102606B1 (en) 2021-09-24
CN112735867A (en) 2021-04-30
EP3813089A1 (en) 2021-04-28

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