EP3840002A1 - Zierblende und elektrischer schalter, der eine solche zierblende umfasst - Google Patents

Zierblende und elektrischer schalter, der eine solche zierblende umfasst Download PDF

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Publication number
EP3840002A1
EP3840002A1 EP20211746.1A EP20211746A EP3840002A1 EP 3840002 A1 EP3840002 A1 EP 3840002A1 EP 20211746 A EP20211746 A EP 20211746A EP 3840002 A1 EP3840002 A1 EP 3840002A1
Authority
EP
European Patent Office
Prior art keywords
flexible
cover
windows
pair
wall
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.)
Granted
Application number
EP20211746.1A
Other languages
English (en)
French (fr)
Other versions
EP3840002C0 (de
EP3840002B1 (de
Inventor
Jean-Luc Chaumeny
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.)
Legrand SNC
Legrand France SA
Original Assignee
Legrand SNC
Legrand France SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Legrand SNC, Legrand France SA filed Critical Legrand SNC
Publication of EP3840002A1 publication Critical patent/EP3840002A1/de
Application granted granted Critical
Publication of EP3840002C0 publication Critical patent/EP3840002C0/de
Publication of EP3840002B1 publication Critical patent/EP3840002B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H01H23/02—Details
    • H01H23/04—Cases; Covers
    • H01H23/06—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
    • H01H23/065—Casings hermetically closed by a diaphragm through which passes an actuating member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/004—Collapsible dome or bubble
    • H01H2215/016—Collapsing to second stable position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/002—Casings sealed
    • H01H2223/003—Membrane embracing all keys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/034—Bezel

Definitions

  • the present invention relates generally to the field of electrical switches.
  • this cover comprising a rigid front wall and a flexible sealing membrane.
  • a sealed electrical switch generally comprises a housing and a sealed cover forming an internal volume in which an equipment mechanism is positioned.
  • the electrical switch comprises means for controlling the switchgear mechanism positioned outside the internal volume of the housing.
  • the control means actuate the fitting mechanism through the sealed cover.
  • the cover is provided with a waterproofing membrane which covers the switchgear mechanism.
  • the waterproofing membrane has openings allowing control elements to pass through it in order to fit directly into the fitting mechanism.
  • the adjustment of the openings of the sealing membrane around the control elements makes it possible to guarantee the sealing of the electrical switch as well as a mechanical connection between these control means and the switchgear mechanism.
  • the sealing membrane is not pierced and completely covers the fitting mechanism.
  • the switchgear mechanism is actuated by the deformation of this sealing membrane by the control means.
  • the aim of the present invention is therefore to provide a cover for a sealed electrical switch, in which the control means of the electrical switch actuate the fitting mechanism without acting directly on the sealing membrane which covers said mechanism in order to guarantee simultaneously reliable actuation of the mechanism and lasting sealing of the electrical switch.
  • the cover comprises a rigid part, a flexible part and openings filled by the waterproofing membrane.
  • This hubcap is completely closed and therefore waterproof.
  • the actuation of the switchgear mechanism is done here by the deformation of the flexible lamellae.
  • the waterproofing membrane is therefore not pierced and is therefore not directly subjected to the stresses exerted on the switchgear mechanism to ensure the operation of the waterproof electrical switch.
  • the invention also relates to an electrical switch according to claims 15 to 17.
  • the figures 1 to 10 show two different embodiments of an electric switch 100; 200 waterproof according to the invention.
  • This electric switch 100; 200 can be of any type, actuated externally by at least one control key 150; 250.
  • It can be a single switch, a double switch or a two-way switch.
  • the invention relates to any type of electrical switch.
  • the first embodiment shown in figures 1 to 3 corresponds to a single-touch electrical switch, in the sense that a single control button on a cover can be used to actuate a driver to open or close a single electrical circuit of a motor.
  • the second embodiment shown in figures 4 to 6 corresponds to a double-key electrical switch in the sense that two different keys of a cover allow two coaches to be operated independently to respectively open or close two different electrical circuits of a motor.
  • motor is used, in this description, to define a fitting mechanism.
  • the motor of an electrical equipment comprises conventionally all the electrical elements of this electrical equipment (for example electrical connection terminals) and the driver.
  • each electrical switch 200 comprises a housing 10 intended to be attached as a projection on a wall wall.
  • this housing 10 does not form part of the invention, it will not be described in detail here.
  • it has a generally parallelepipedal shape open at the front. It comprises a bottom wall 11 from which rises a side wall 12.
  • This housing 10 is intended to house a motor 210 of the electrical switch 200.
  • a cover 230 which will be described in more detail later, closes in a sealed manner. front of housing 10.
  • each electrical switch 200 comprises a recessing frame 20 intended to be mounted on a recessing box 25 embedded in a recessing opening of said wall wall.
  • this mounting frame 20 does not form part of the invention, it will not be described in detail.
  • this embedding frame 20 comprises means for mounting in the embedding box 25.
  • the cover 230 comprises means of assembly 235 intended to cooperate with complementary receiving means 23 provided on the embedding frame 20. The cover 230 thus attached to the embedding frame 20 allows the production of a waterproof electrical switch 200.
  • the electric switch 100; 200 is connected to the electrical network for its power supply.
  • the terms “front” and “rear” will be used with respect to the direction of gaze of a user towards the wall wall on or in which this electrical switch 100 is attached; 200.
  • the front will designate the side facing the inside of the room, and the rear will designate the side facing away, towards the outside of the room.
  • the front of the electrical switch 100; 200 will designate the side facing the viewer and the rear will designate the side facing the receiving support of the electrical switch 100; 200.
  • Each electrical switch 100; 200 shown on figures 1 to 6 comprises, on the one hand, the motor 110; 210 provided with a base 112; 212 housing electrical connection terminals 114; 214 to be connected to the local electrical network according to the operating mode of the electrical switch, and, on the other hand, the cover 130; 230 (which gives its function to the electric switch).
  • the base 112; 212 is in the form of an insulating envelope.
  • This insulating envelope can be made as a single piece of molded plastic.
  • the base 112; 212 which has a generally parallelepipedal shape, has uprights 101 at its four corners; 201 for mounting in the protruding housing or in the mounting frame.
  • Each amount 101; 201 carries a tooth 102; 202 intended to be hooked on the edge of a housing (not shown) provided on a pillar projecting from the bottom of the protruding housing 10 or on the edge of a window provided on a pillar (not shown) s' extending to the rear of the mounting frame 20.
  • the hubcap 130; 230 which will be described in more detail later, sealingly closes the front of the projection housing 10 or of the mounting frame 20 in which the base 112 is mounted; 212 of the engine 110; 210, equipped with one or more coaches 120; 220 ( figures 2, 3 , 5 and 6 ). It carries the command key (s) 150; 250 adapted to act on the trainer (s) 120; 220 of the engine 110; 210 for controlling the opening and closing of the electrical contacts of the electrical switch 100; 200.
  • the base 112; 212 of the engine 110; 210 here comprises six housings 103; 203, isolated from each other, to accommodate three or six electrical connection terminals depending on whether it is a single-touch electrical switch ( figure 1 ) or a double-button electrical switch ( figure 4 ).
  • the base 112; 212 is therefore the same whether the electrical switch comprises a control key or two control keys.
  • the motor 110 is equipped with three electrical connection terminals 114 forming an electrical circuit.
  • the motor 210 is equipped with six electrical connection terminals 214, three electrical connection terminals are connected to a first electrical circuit and three other electrical connection terminals are connected to a second electrical circuit independent of the first electrical circuit.
  • the electrical connection terminals 114; 214 are here automatic connection terminals.
  • each electrical connection terminal 114; 214 is made in one piece by cutting and forming a metal strip.
  • each electrical connection terminal 114; 214 has a cage 114a; 214a, generally forming a cylindrical sleeve, inside which extends a leaf spring 114b; 214b.
  • a free end of the leaf spring 114b; 214b points to a contact area formed by the inner face of part of the wall cylindrical of the cage 114a; 214a while the other end of the leaf spring 114b; 214b is linked by an elbow, forming a pivot hinge, to another part 114c; 214c of the cylindrical wall of the cage 114; 214.
  • the stripped end of an electric wire (not shown) coming from the power supply network is introduced via an opening provided at the bottom of the base 112; 212, inside the cage 114; 214 of said terminal so that the conductive stripped core of said electric wire is wedged between the cylindrical wall of the cage 114a; 214a and the free end of the leaf spring 114b; 214b ( figures 3 and 6 ).
  • the leaf spring 114b; 214b is prestressed so that under the action of the electric wire introduced into said cage, it moves away from said contact zone and it exerts sufficient pressure on the stripped metal core of said electric wire in order to establish good electrical contact between the electrical connection terminal and the metal core of the electrical wire while preventing the electrical wire from being manually pulled out of the cage unintentionally (the wedging force exerted by the leaf spring must resist a force normalized traction exerted on the electric wire).
  • strollers 115; 215 (visible on figures 1 to 6 ) operable through openings in the base 112; 212 to push on an operating part 114d; 214d of said leaf springs 114b; 214b of said electrical connection terminals 114; 214 in order to separate said leaf springs 114b; 214b of the electric wires.
  • These electric wires free from the grip of the leaf springs 114b; 214b can be easily pulled out of the base 112; 212 of the engine 110; 210.
  • each command is associated with three electrical connection terminals 114; 214.
  • parts 114c; 214c of the cylindrical wall of the cages 114a; 214a of two electrical connection terminals 114; 214 are connected via conductive tabs 117; 217 to a fixed contact grain 116; 216.
  • part 114c; 214c of the cylindrical wall of the cage 114a; 214a of the third electrical connection terminal 114; 214 is for its part connected to a yoke 113; 213 fixed on which is pivotally mounted a brush 118; 218, a portion of which is received in this yoke 113; 213.
  • This yoke 113; 213 is in the form of a metal profile whose section has an overall shape of V. This profile extends substantially parallel to a support plane PS located at the rear of said base 112; 212. Its longitudinal axis defines a pivot axis A1, B1 for the brush 118; 218 ( figures 3 and 6 ).
  • the broom 118; 218 is in the form of an L-shaped metal plate, one branch of which is received by its edge in the yoke 113; 213 so as to establish electrical contact and the other branch carries at its free end a movable contact grain 119; 219.
  • the broom 118; 218 is pivoted about said pivot axis A1; B1 between two extreme positions, to bring the contact grain 119 into contact or out of contact; 219 mobile carried by the broom 118; 218, with at least one fixed contact grain 116; 216 carried by one of the conductive tabs 117; 217 of said electrical connection terminals 114; 214.
  • each coach 120; 220 of the engine 110; 210 is adapted to switch between two stable positions corresponding to two stable positions of each brush 118; 218.
  • each driver could have a single stable position (for a push-push type switch), each tilting movement of the driver causing the blade to tilt between its two. stable positions. It would suffice to provide inside the base of the motor an elastic element acting permanently on the driver to return it to its stable position.
  • a trainer 120; 220 is in fact associated with a single control and therefore with a single electrical circuit.
  • two coaches 220 of the motor 210 actuated by two control keys 250 cause the opening and closing of two electrical circuits
  • a single driver 120 of the motor 110 actuated by a single control key 150, causes the opening and closing of a single electrical circuit.
  • Each coach 120; 220 is here mounted so as to pivot about a tilting axis (not shown) relative to the base 112; 212 of the engine 110; 210 in order to move the brush 118; 218 between two positions.
  • Each coach 120; 220 is adapted to move the brush 118; 218 between a position making it possible to bring the contact grain 119 into contact; 219 mobile with a contact grain 116; 216 fixed and another position in which the contact grain 119; 219 mobile is brought into contact with another contact grain 116; 216 sets.
  • the trainer 120; 220 could be adapted to move the brush 118; 218 between a position making it possible to bring the contact grain 119 into contact; 219 mobile with a contact grain 116; 216 fixed and another position in which the contact grain 119; 219 mobile is put out of contact with this contact grain 116; 216 sets.
  • Each coach 120; 220 extends on either side of its tilting axis at the front of the base 112; 212.
  • each coach 120; 220 comprises, at the front, an upper part 121; 221 and, at the rear, a tubular element 226 (shown only on the figure 6 ).
  • the width of the upper part 121; 221 of trainer 120; 220 depends on the type of control (single or double) of the electric switch 100; 200.
  • the trainer 120 has a width equal to twice the standard width, or a width called “two modules” (while moving a single brush 118).
  • each driver 220 having a width of one module (each driver 220 moves a brush 218).
  • the tubular element 226 extends rearwardly, orthogonally to a rear face of the upper part 121; 221 of each trainer 120; 220.
  • Coach 120; 220 is preferably made from a single piece of molded plastic.
  • the upper part 121; 221 of each trainer 120; 220 is mounted at the front of the base 112; 212, by means of journals (not visible) engaged in bearings (not shown) of the base 112; 212, so as to partially close the base 112; 212 at the front, the tubular element 226 of each driver 120; 220 extending inside said pedestal 112; 212.
  • resilient tilting means are provided for each blade 118; 218.
  • These elastic tilting means comprise a spring mounted in the tubular element 226 of each driver 120; 220, capable, after crossing a hard point, to stress each brush 118; 218 in the direction of one or the other of its extreme positions depending on the position of the coach 120; 220.
  • each trainer 120; 220 has at the free end of its tubular element 226 a fork shape intended to straddle a transverse part of the brush 118; 218 correspondent.
  • the broom branch 118; 218 received in the yoke 113; 213 present, on its edge opposite to the edge in contact with the yoke 113; 213, a relief on which the dedicated spring is mounted.
  • the driver 120 has an asymmetrical shape with the presence of a single tubular element in line with the housings 103 of the base 112 equipped with the three electrical connection terminals 114 but not at the level of the empty housings of the base 112.
  • the movement of the trainer 120; 220 thus drives the movement of the spring, which drives the movement of the brush 118; 218 so as to allow rapid and precise tilting of the brush 118; 218 between the two extreme positions while avoiding the formation of electric arcs.
  • the same base therefore has mounting means making it possible to accommodate a single trainer in the case of a single control or two different trainers in the case of a double control.
  • a single universal base can therefore be manufactured to adapt the motor to a single control or double control configuration of the electrical switch according to the invention.
  • the present invention relates more particularly to the arrangement of the cover 130; 230 of the electric switch 100; 200 which, advantageously, allows the trainer 120 to be tilted; 220 of the engine 110; 210 while ensuring the durable tightness of the electrical switch 100; 200.
  • the hubcap 130; 230 is shown more particularly on the figures 7 to 10 .
  • the hubcap 130; 230 comprises a rigid front wall 140 and a flexible sealing membrane 162.
  • the rigid front wall 140 has a shape adapted to the front opening of the housing 10 for surface mounting ( figure 11 ) or the mounting frame 20 for flush mounting ( figure 12 ), so that it closes this front opening.
  • the rigid front wall 140 therefore forms a cover which closes the electrical switch 100 at the front; 200 by fixing to the 10 projection box ( figure 11 ) or the mounting frame 20 ( figure 12 ) by means of fixing elements (not shown) introduced through holes 149 drilled at the corners of the rigid front wall 140.
  • the rigid front wall 140 is placed above each driver 120; 220. It isolates the motor 110 from the outside; 210 equipped with its trainer (s) 120; 220, to protect it from dust or liquids which could damage it.
  • the rigid front wall 140 carries, on its front face, a series of bearings 147, 148, the axes of which are aligned along the same central axis L, serving for pivoting mounting of the control button or buttons 150; 250 of the cover 130; 230 (see figures 1 and 4 ).
  • each control key 150; 250 includes journals 157; 257 to be engaged in the bearings 147, 148 for its assembly on the rigid front wall 140 of the cover 130; 230.
  • Each control key 150; 250 is then able to tilt around the median axis L forming the tilting axis (visible on the figures 2 , 4 and 8 ) between two stable positions.
  • each control key 150; 250 when each control key 150; 250 is tilted into one or the other of the stable positions, it extends overall lengthwise along an X axis; X 1 orthogonal to the median axis L and forming an angle of inclination ⁇ with the rigid front wall 140 of the cover 130; 230.
  • this angle of inclination ⁇ is of the order of 5 degrees.
  • each control key 150; 250 depends on the type of control (single or double) of the electric switch 100; 200.
  • the cover 130 comprises a single control button 150 which has a width of two modules. It is associated with a driver 120 of the motor 110 which moves a single brush 118.
  • the electrical switch 200 comprises two independent control keys 250, juxtaposed along the median axis L, each having a width of one module.
  • Each control key 250 is associated with a driver 220 of the motor 210, and each driver 220 moves a brush 218.
  • Each control key 150; 250 actuated by a user, is adapted to act on each trainer 120; 220 through said rigid front wall 140 to tilt it between its two extreme positions in order to open or close the electrical contacts of the motor 110; 210.
  • the rigid front wall 140 of the cover 130; 230 here includes two pairs A, B of windows 160.
  • the two pairs A, B of windows 160 are positioned along two parallel axes Z1, Z2 (see figure 7 ) perpendicular to the median axis L.
  • the windows 160 are positioned on one of the two axes Z1, Z2, on either side of said median axis L (see figures 7 and 8 ).
  • each window 160 has an elongated shape along one of the two axes Z1, Z2.
  • each window 160 is elliptical in shape but it could, as a variant, be free-form.
  • the elongated parts of each window 160 are therefore aligned on the same axis Z1, Z2.
  • the elongated parts of the windows 160 of the couple A are aligned along the Z1 axis
  • the elongated portions of the windows 160 of the B couple are aligned along the Z2 axis.
  • each window 160 of a pair A, B of windows 160 is partially closed by a flexible strip 165.
  • Each flexible strip 165 extends from one edge to another of each window 160, along the axis of alignment of the elongated parts of the windows 160.
  • each flexible strip 165 of the pair A of windows 160 is aligned along the axis Z1
  • each flexible strip 165 of the pair B of windows 160 is aligned along the axis Z2.
  • each window 160 is completely closed making it possible to guarantee the sealing of the electrical switch 100; 200 by isolating the motor 110; 210 dust and liquids.
  • this flexible sealing membrane 162 is produced by overmolding a flexible material around the flexible strip 165.
  • the rigid front wall 140 is made in several parts: it comprises a main plate 142 provided with two pairs of openings 145, respectively aligned along the two parallel axes Z1, Z2 (see figures 1 , 4 and 7 ) and plates 167 attached and fixed in these openings 145.
  • Each window 160 is formed on a wafer 167 ( figures 1 , 4 and 9 ) reported in an opening 145 of the main plate 142 of the rigid front wall 140.
  • the openings 145 are positioned on either side of the median axis L.
  • the openings 145 have a rectangular shape and the plates 167 have an outline external adapted to the internal contour of said openings 145 so that they completely close off the openings 145 in which they are attached.
  • Each plate 167 is fixed in each opening 145 by being fitted, welded or press-fitted therein.
  • each window can be formed directly in the rigid front wall of the hubcap.
  • the flexible strips 165 and the plates 167 are produced by molding, in a single piece of plastic.
  • This plastic material is, for example, polypropylene (PP) of the metalocene type, or polypropylene loaded at 10 or 15% with glass fibers, or polyamide (of the type PA66 ST801 or PA6 0865000000) or else polyamide loaded at 10 or 15 % glass fiber.
  • each flexible strip 165 has a thickness thinner than that of the corresponding wafer 167, thus ensuring its flexibility.
  • each flexible strip 165 is adapted to deform to assume two stable states: a state of rest and a state deformed under the action of a pressure force exerted by the or one of the control keys 150; 250.
  • each flexible blade 165 without damaging the electrical switch 100; 200 is possible because each flexible strip 165 has two ends connected to the edge of the associated window 160 by a junction forming a hinge 166.
  • this junction forming a hinge 166 is constituted by a thinning of material at the level of the connection between the ends of the flexible strip 165 and the edge of the window 160.
  • the junction forming a hinge 166 makes it possible to guarantee the bistability, in the two stable states introduced. previously, of each flexible strip 165. In fact, it plays the role of a weak point to allow the material constituting the flexible strip 165 and the edge of the window 160 to pass from one stable state to another without deteriorating or deteriorating. to break up.
  • each flexible strip 165 has a curved profile, in the form of an arc of a circle, with respect to a mean plane P.
  • One of the two stable states in this case the resting state, corresponds to the case where the flexible lamella 165 extends above the mean plane P.
  • the other stable state here the deformed state, corresponds to the case where the flexible lamella 165 extends below the mean plane P.
  • This curved profile of each flexible strip 165 makes it possible to pre-stress said flexible strip 165 and subsequently to facilitate its deformation.
  • the pressure force causing the deformation of one of the flexible strips 165 associated with a pair A, B of windows 160 is generated by pressing a user's finger on a control key 150; 250.
  • each control key 150; 250 includes a support wall 155; 255 from a user's finger.
  • the support wall 155; 255 includes a rear face 159; 259 from which extend at least two pads 152; 252.
  • the studs 152; 252 are in pairs aligned on the same longitudinal axis (not shown) orthogonal to the median axis L (forming the tilting axis of each control key 150; 250) and arranged on either side of the axis median L.
  • each stud 152; 252 is narrower than the base of each stud 152; 252.
  • the free end of each stud 152; 252 is rounded in shape.
  • the studs 152; 252 are formed integrally with the control key 150; 250 correspondent.
  • the rear face 159 of the control key 150 comprises four pads 152, aligned two by two along two longitudinal parallel axes (not shown) perpendicular to the median axis L.
  • each control key 250 comprises a pair of two pads 152 aligned along a longitudinal axis perpendicular to the median axis L.
  • the pads 152; 252 are intended to bear on the flexible strips 165 of a pair A, B of windows 160 in order to deform them.
  • each stud 152; 252 is determined so that the end of a stud 152; 252 is placed at a distance from the flexible strip 165 of a window 160 of the pair A, B extending below the mean plane P and that the end of the other stud 152; 252 rests on the flexible strip 165 of the other window 160 of the pair A, B extending above the mean plane P.
  • the studs 152; 252 do not exert tension on the flexible strips 165, so as for example not to break the flexible sealing membrane 162, and therefore to guarantee the tightness of the electrical switch 100 over time; 200.
  • the studs 152 simultaneously deform the two flexible strips 165 of the two windows 160 arranged on the same side of the median axis L.
  • the deformation of these two flexible strips 165 therefore does not take place independently.
  • the two deformed flexible sipes 165 are both in a deformed state while the other two flexible sipes 165 of the other two windows 160 disposed on the other side of the median axis L are both in a resting state.
  • one of the pads 252 of a control key 250 deforms one of the flexible slats 165 of a window 160 of the pair A, B associated, while the other flexible slat 165 of the other window 160 of the couple A, B is not deformed.
  • the states of the two flexible blades 165 of this couple are not independent (if one flexible blade is in a deformed state, the other is in a rest state).
  • the states of the flexible blades 165 are independent.
  • each control key 150; 250 is bordered on the outside by a flange 158; 258 which extends towards the rear.
  • Two opposite regions of this rim 158 are defined; 258 positioned on the longitudinal axis carrying the studs 152; 252, near this axis.
  • the height of the ledge 158; 258 in these two opposite regions is determined so that when the control key 150; 250 is in one of the two stable positions, the rim 158; 258 bears on the front face of the rigid front wall 140 of the cover 130; 230.
  • the ledge 158; 258 can present this height in a constant manner over the entire periphery of the control key 150; 250 (and not just in the two opposing regions previously defined).
  • the flexible strips 165 deform to act on each driver 120; 220, located in line with said flexible strips 165, in order to tilt it to allow movement of the brush 118; 218.
  • each coach 120; 220 comprises at least two protruding parts 122; 222 directed towards the front intended to allow its actuation.
  • These protruding parts 122; 222 are aligned along a longitudinal axis (not shown) orthogonal to the median axis L.
  • These projecting parts 122; 222 are arranged opposite the flexible strips 165 of a pair A, B of windows 160 so that when a flexible strip 165 is deformed, it acts on one of the projecting parts 122; 222 of trainer 120; 220 correspondent.
  • These protruding parts 122; 222 have a free end of rounded shape.
  • the upper part 121 of the single driver 120 comprises four projecting parts 122 arranged opposite the four flexible strips 165 of the windows 160 of the cover 130. They are aligned two by two along two parallel longitudinal axes (not shown). .
  • each driver 220 comprises a pair of projecting parts 122 aligned along a longitudinal axis orthogonal to the median axis L and arranged opposite the two flexible strips 165 of a pair A, B of windows 160 of the hub cap 230.
  • the height of the projecting parts 122; 222 is determined so that the end of a protruding portion 122; 222 is placed at a distance from the flexible lamella 165 of the pair A, B of windows 160 extending above the mean plane P and that the end of the other projecting part 122; 222 rests on the flexible lamella 165 extending below the mid plane P.
  • the protruding parts 122: 222 do not exert tension on the flexible lamellae 165.
  • the figures 3 and 6 represent a control key 150; 250 of the cover 130; 230 of the electric switch 100; 200 in stable condition, tilted to the left side.
  • This stable state corresponds to a stable state of the trainer 120; 220 of the engine 110; 210, located to the right of the control key 150; 250 below the windows 160 of the rigid front wall 140 of the cover 130; 230.
  • the left end of said control key 150; 250 is brought as close as possible to the rigid front wall 140 of the cover 130; 230, said control key 150; 250 forming an angle ⁇ of the order of 5 degrees with the front face of the rigid front wall 140.
  • the flexible strip 165 on the right of a pair A, B of windows 160 maintains the control button 150; 250 in its stable tilted position on the left side thanks to the support of the stud 152; 252 on the right on this flexible strip 165. Maintaining the flexible strip 165 on the right on the stud 152; 252 on the right also makes it possible to support the left portion of the rim 158; 258 of the control key 150; 250 on the front rigid wall 140.
  • the free end of the stud 152; 252 on the left is, as can be seen on the figures 3 and 6 , at a distance from the flexible strip 165 on the left of the corresponding pair A, B of windows 160 which is in its deformed state. This makes it possible to avoid observing a hyperstatic situation. All of the elements of the electrical switch 100; 200 is in a stable configuration.
  • the right end thereof is brought closer to the rigid front wall of the hubcap, said control key forming an angle of the order of 5 degrees with the front face of the rigid front wall.
  • the left flexible strip keeps the control button in its stable tilted position on the right side thanks to the support of the left stud on this flexible strip. Maintaining the left flexible strip on the left stud also makes it possible to support the right portion of the rim on the rigid front wall.
  • the free end of the right-hand stud is for its part at a distance from the flexible right-hand lamella which is in its deformed state. This makes it possible to avoid observing a hyperstatic situation.
  • the pressing of a finger of a user on a control key 150; 250 causes the switching of the control key 150; 250 around the median axis L, from a stable state, for example tilted to the left side, to another stable state, tilted to the right side, and the deformation of one or two flexible tongues 165 of a torque or of two pairs A, B of windows 160 by the support of the stud (s) 152; 252 provided on the rear face of said key of order 150; 250.
  • This or these flexible tabs 165 cause, by deforming, the tilting of the driver 120; 220 including the projecting part (s) 122; 222 are located in line with said flexible tab (s) 165, and, in doing so, the opening or closing of the electrical contacts of the motor 110; 210.
  • the flexible tongues 165 which, by their deformation, cause the tilting of the driver 120; 220, the integrity of the flexible sealing membrane 162 closing said windows 160 of the rigid front wall 140 of the cover 130 is preserved; 230, because this membrane is not directly stressed during the operation of the electric switch 100; 200.
  • the flexible waterproofing membrane 162 then plays its role of insulation perfectly over time and follows the movement of the flexible tongues 165 which curve above and below the mean plane P.
  • the sealing of the electrical switch 100; 200 is guaranteed because the flexible sealing membrane 162 is flexible enough to adapt to the deformations of the flexible lamella 165.

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EP20211746.1A 2019-12-20 2020-12-04 Zierblende und elektrischer schalter, der eine solche zierblende umfasst Active EP3840002B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1915132A FR3105563B1 (fr) 2019-12-20 2019-12-20 Enjoliveur et commutateur électrique comprenant un tel enjoliveur

Publications (3)

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EP3840002A1 true EP3840002A1 (de) 2021-06-23
EP3840002C0 EP3840002C0 (de) 2024-05-01
EP3840002B1 EP3840002B1 (de) 2024-05-01

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EP (1) EP3840002B1 (de)
FR (1) FR3105563B1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1253609A1 (de) 2001-04-23 2002-10-30 Legrand Hermetische Betätigungsvorrichtung für elektrische Geräte
US20080173530A1 (en) * 2007-01-19 2008-07-24 Kabushiki Kaisha Tokai Rika Denki Seisakusho Switch unit
EP3333870A1 (de) * 2016-12-09 2018-06-13 Legrand France Elektrischer schalter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10302575A (ja) * 1997-04-24 1998-11-13 Anritsu Corp 防水スイッチ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1253609A1 (de) 2001-04-23 2002-10-30 Legrand Hermetische Betätigungsvorrichtung für elektrische Geräte
US20080173530A1 (en) * 2007-01-19 2008-07-24 Kabushiki Kaisha Tokai Rika Denki Seisakusho Switch unit
EP3333870A1 (de) * 2016-12-09 2018-06-13 Legrand France Elektrischer schalter

Also Published As

Publication number Publication date
FR3105563A1 (fr) 2021-06-25
FR3105563B1 (fr) 2022-01-07
EP3840002C0 (de) 2024-05-01
EP3840002B1 (de) 2024-05-01

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