EP3840002B1 - 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
EP3840002B1
EP3840002B1 EP20211746.1A EP20211746A EP3840002B1 EP 3840002 B1 EP3840002 B1 EP 3840002B1 EP 20211746 A EP20211746 A EP 20211746A EP 3840002 B1 EP3840002 B1 EP 3840002B1
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EP
European Patent Office
Prior art keywords
trim
flexible
electrical switch
flexible strip
windows
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
EP20211746.1A
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English (en)
French (fr)
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EP3840002A1 (de
EP3840002C0 (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.)
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Publication date
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Publication of EP3840002A1 publication Critical patent/EP3840002A1/de
Application granted granted Critical
Publication of EP3840002B1 publication Critical patent/EP3840002B1/de
Publication of EP3840002C0 publication Critical patent/EP3840002C0/de
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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 generally relates to the field of electrical switches.
  • this cover for a waterproof electrical switch, this cover comprising a rigid front wall and a flexible sealing membrane.
  • a waterproof electrical switch generally comprises a housing and a waterproof cover forming an internal volume in which a switchgear 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 equipment mechanism through the waterproof cover.
  • the cover is fitted with a sealing membrane which covers the switchgear mechanism.
  • the sealing membrane has openings allowing control elements to pass through it to fit directly onto the equipment mechanism.
  • the adjustment of the openings of the sealing membrane around the control elements makes it possible to guarantee the tightness of the electrical switch as well as a mechanical connection between these control means and the switchgear mechanism.
  • JPH10302575A discloses a cover of an electrical switch according to the preamble of claim 1.
  • the sealing membrane is not pierced and completely covers the equipment mechanism.
  • the device mechanism is actuated by the deformation of this sealing membrane by the control means.
  • the aim of the present invention is therefore to propose a cover for a waterproof electrical switch, in which the control means of the electrical switch actuate the switchgear mechanism without acting directly on the sealing membrane which covers said mechanism in order to guarantee simultaneously reliable actuation of the mechanism and long-lasting sealing of the electrical switch.
  • the hubcap comprises a rigid part, a flexible part and openings filled by the sealing membrane.
  • This hubcap is completely closed and therefore waterproof.
  • the device mechanism is actuated here by the deformation of the flexible lamellas.
  • the sealing membrane is therefore not pierced and is therefore not directly subject to the stresses exerted on the switchgear mechanism to ensure the operation of the sealed electrical switch.
  • the invention also relates to an electrical switch according to claims 15 to 17.
  • THE figures 1 to 10 represent two different embodiments of an electrical switch 100; 200 waterproof according to the invention.
  • This electrical 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 on the figures 1 to 3 corresponds to a single-touch electrical switch, in the sense that a single control button on a hubcap makes it possible to activate a driver to open or close a single electrical circuit of a motor.
  • the second embodiment shown on the figures 4 to 6 corresponds to a double-touch electrical switch in the sense that two different keys on a hubcap make it possible to independently operate two drives to respectively open or close two different electrical circuits of a motor.
  • motor is used, in this description, to define an equipment mechanism.
  • the motor of electrical equipment includes 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 projecting onto a wall wall.
  • This housing 10 not being part of the invention, it will not be described in detail here.
  • it has a generally parallelepiped shape open at the front. It comprises a bottom wall 11 from which a side wall 12 rises.
  • This housing 10 is intended to house a motor 210 of the electrical switch 200.
  • a hubcap 230 which will be described in more detail later, closes in a watertight manner. the front of the housing 10.
  • each electrical switch 200 comprises a recessing frame 20 intended to be mounted on a recessing box 25 recessed in a recessing opening of said wall wall.
  • This embedding frame 20 not being part of the invention, it will not be described in detail.
  • it comprises a side wall 21 which delimits a reception opening 22 of the motor 210 of the electrical switch 200.
  • This mounting frame 20 includes means for mounting in the mounting box 25.
  • the trim 230 includes means for assembly 235 intended to cooperate with complementary receiving means 23 provided on the embedding frame 20. The trim 230 thus attached to the embedding frame 20 allows the production of a waterproof electrical switch 200.
  • the electrical switch 100; 200 is connected to the electrical network for its power supply.
  • the terms "front” and “rear” will be used in relation to the direction of gaze of a user towards the 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 back will designate the side facing the opposite, towards the outside of the room.
  • the front of the electrical switch 100; 200 will designate the side facing the person looking at it and the rear will designate the side facing the receiving support of the electrical switch 100; 200.
  • Each electrical switch 100; 200 represented on the 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 hubcap 130; 230 (which gives its function to the electrical switch).
  • the base 112; 212 is in the form of an insulating envelope.
  • This insulating envelope can be made in one piece from molded plastic material.
  • the base 112; 212 which generally has a parallelepiped shape, has uprights 101 at its four corners; 201 for its mounting in the protruding housing 10 or in the recessed frame.
  • Each amount 101; 201 carries a tooth 102; 202 intended to hang on the edge of a housing (not shown) provided on a pillar projecting from the bottom of the projecting housing 10 or on the edge of a window provided on a pillar (not shown) extending to the rear of the mounting frame 20.
  • the hubcap 130; 230 which will be described in more detail later, seals the front of the projecting housing 10 or the mounting frame 20 in which the base 112 is mounted; 212 of engine 110; 210, equipped with one or more coaches 120; 220 ( figures 2, 3 , 5 and 6 ). It carries the control key(s) 150; 250 adapted to act on the trainer(s) 120; 220 of engine 110; 210 to control the opening and closing of the electrical contacts of the electrical switch 100; 200.
  • the base 112; 212 of engine 110; 210 here has 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-touch electrical switch ( Figure 4 ).
  • the base 112; 212 is therefore the same whether the electrical switch includes one 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 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 includes 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 zone formed by the interior face of a 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 cage 114; 214 of said terminal so that the stripped conductive core of said electric wire is trapped between the cylindrical wall of 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 bare 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 in an unintentional manner (the jamming force exerted by the leaf spring must resist a force standard traction exerted on the electric wire).
  • strollers 115 are provided, in a manner known per se; 215 (visible on the figures 1 to 6 ) maneuverable through openings in the base 112; 212 to push on a maneuvering 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 electrical wires.
  • These electrical wires free from the grip of the leaf springs 114b; 214b can be easily pulled out of the base 112; 212 of engine 110; 210.
  • each command is associated with three electrical connection terminals 114; 214.
  • the three electrical connection terminals in the examples shown here, 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 connected to a yoke 113; 213 fixed on which a brush 118 is pivotally mounted; 218 of which a slice is received in this screed 113; 213.
  • This screed 113; 213 is in the form of a metal profile whose section has an overall V shape. This profile extends substantially parallel to a PS support plane located at the rear of said base 112; 212. Its longitudinal axis defines a pivot axis A1, B1 for the blade 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 around said pivot axis A1; B1 between two extreme positions, to put the contact grain 119 in 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 engine 110; 210 is adapted to switch between two stable positions corresponding to two stable positions of each blade 118; 218.
  • each driver has a single stable position (for a push-push type switch), each tilting movement of the driver causing the brush to tilt between its two stable positions. It would be enough to provide inside the motor base an elastic element permanently acting on the trainer 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 drivers 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 movable to pivot around a tilting axis (not shown) relative to the base 112; 212 of engine 110; 210 in order to move the broom 118; 218 between two positions.
  • Each coach 120; 220 is adapted to move the brush 118; 218 enters a position allowing the contact grain 119 to be brought 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 fixed.
  • the coach 120; 220 could be adapted to move the broom 118; 218 enters a position allowing the contact grain 119 to be brought 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 fixed.
  • 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 coach 120; 220 depends on the type of control (single or double) of the electrical switch 100; 200.
  • the driver 120 has a width equal to twice the standard width, or a width known as “two modules” (while moving a single blade 118).
  • each coach 220 having a width of one module (each coach 220 moves a broom 218).
  • the tubular element 226 extends rearward, orthogonal to a rear face of the upper part 121; 221 from each coach 120; 220.
  • the Coach 120; 220 is preferably made in one piece of molded plastic material.
  • the upper part 121; 221 from each coach 120; 220 is mounted at the front of the base 112; 212, thanks to pins (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 base 112; 212.
  • elastic means for tilting each blade 118 are provided; 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, of requesting each brush 118; 218 in the direction of one or other of its extreme positions depending on the position of the coach 120; 220.
  • each coach 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 corresponding.
  • the broom branch 118; 218 received in chapter 113; 213 present, on its edge opposite 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 to the right of 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 coach 120; 220 thus causes the movement of the spring, which causes the movement of the brush 118; 218 so as to allow rapid and precise tilting of the blade 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 driver in the case of a single control or two different coaches 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 hubcap 130; 230 of electrical switch 100; 200 which, advantageously, allows the trainer 120 to tilt; 220 of engine 110; 210 while guaranteeing the durable sealing of the electrical switch 100; 200.
  • the hubcap 130; 230 is represented 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 attaching to the housing 10 projection ( Figure 11 ) or the mounting frame 20 ( figure 12 ) by means of fixing elements (not shown) introduced through orifices 149 drilled at the corners of the rigid front wall 140.
  • the rigid front wall 140 is placed above each trainer 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 whose axes are aligned along the same central axis L, used for pivoting mounting of the control key(s) 150; 250 from hubcap 130; 230 (see figures 1 And 4 ).
  • each control key 150; 250 includes journals 157; 257 to engage in the bearings 147, 148 for its assembly on the rigid front wall 140 of the hubcap 130; 230.
  • Each control key 150; 250 is then able to tilt around the median axis L forming the tilting axis (visible on the figure 2 , 4 And 8 ) between two stable positions.
  • each control key 150; 250 when each control key 150; 250 is tilted into one or other of the stable positions, it extends in length generally along an axis X; X 1 orthogonal to the median axis L and forming an angle of inclination ⁇ with the rigid front wall 140 of the hubcap 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 electrical switch 100; 200.
  • the hubcap 130 includes a single control key 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 central 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 make it switch between its two extreme positions in order to open or close the electrical motor contacts 110; 210.
  • the rigid front wall 140 of the hubcap 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 of elliptical shape but it could, alternatively, be of 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 pair A are aligned along axis Z1, while the elongated parts of windows 160 of pair B are aligned along axis Z2.
  • each window 160 of a pair A, B of windows 160 is partially closed by a flexible slat 165.
  • Each flexible slat 165 extends from one edge to another of each window 160, along the axis of alignment of the elongated parts of windows 160.
  • each flexible slat 165 of the pair A of windows 160 is aligned along the axis Z1
  • each flexible slat 165 of the pair B of windows 160 is aligned along the axis Z2.
  • each window 160 is completely closed to guarantee the tightness 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 plate 167 ( figures 1 , 4 And 9 ) attached to an opening 145 of the main plate 142 of the rigid front wall 140.
  • the openings 145 are positioned on either side of the central axis L.
  • the openings 145 have a rectangular shape and the plates 167 have a contour external adapted to the internal contour of said openings 145 so that they completely close the openings 145 in which they are attached.
  • Each plate 167 is fixed in each opening 145 by being fitted, welded or force-fitted into it.
  • each window could be formed directly in the rigid front wall of the hubcap.
  • the flexible strips 165 and the plates 167 are made by molding, in a single piece of plastic material.
  • This plastic material is for example polypropylene (PP) of the metalocene type, or polypropylene loaded with 10 or 15% glass fibers, or polyamide (of the PA66 ST801 or PA6 0865000000 type) or even polyamide loaded with 10 or 15 % in glass fibers.
  • each flexible strip 165 has a thickness thinner than that of the corresponding plate 167, thus ensuring its flexibility.
  • each flexible strip 165 is adapted to deform to take two stable states: a rest state and a deformed state under the action of a pressure force exerted by the or one of the control keys 150; 250.
  • each flexible strip 165 without damage to the electrical switch 100; 200 is possible because each flexible slat 165 has two ends connected to the edge of the window 160 associated 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 slat 165 and the edge of the window 160.
  • the junction forming a hinge 166 makes it possible to guarantee bistability, in the two stable states introduced previously, of each flexible slat 165. In fact, it plays the role of a weak point to allow the material constituting the flexible slat 165 and the edge of the window 160 to pass from one stable state to another without deteriorating or becoming to break up.
  • each flexible strip 165 has a curved profile, in the shape of an arc of a circle, relative to a mean plane P.
  • One of the two stable states in this case the rest state, corresponds to the case where the flexible strip 165 extends above the mean plane P.
  • the other stable state here the deformed state, corresponds to the case where the flexible strip 165 extends below the mean plane P.
  • This curved profile of each flexible strip 165 makes it possible to prestress said flexible strip 165 and subsequently facilitate its deformation.
  • the pressure force causing the deformation of one of the flexible slats 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 of a user's finger.
  • the support wall 155; 255 includes a rear face 159; 259 from which at least two studs 152 extend; 252.
  • the plots 152; 252 are two by two 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 plots 152; 252 are formed in one piece with the control key 150; 250 corresponding.
  • the rear face 159 of the control button 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.
  • pads 152; 252 are intended to rest on the flexible slats 165 of a pair A, B of windows 160 to deform them.
  • each stud 152; 252 is determined so that the end of a pad 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, for example so as 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 slats 165 of the two windows 160 arranged on the same side of the median axis L.
  • the deformation of these two flexible slats 165 therefore does not take place independently.
  • the two deformed flexible slats 165 are both in a deformed state while the two other flexible slats 165 of the two other windows 160 arranged on the other side of the central axis L are both in a rest state.
  • one of the pads 252 of a control key 250 deforms one of the flexible slats 165 of a window 160 of the associated pair A, B, while the other flexible slat 165 of the other window 160 of the couple A, B is not distorted.
  • the states of the two flexible strips 165 of this pair are not independent (if one flexible strip is in a deformed state, the other is in a rest state).
  • the states of the flexible strips 165 are independent.
  • each control key 150; 250 is bordered externally by a rim 158; 258 which extends towards the rear.
  • a rim 158; 258 which extends towards the rear.
  • the height of the rim 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 hubcap 130; 230.
  • the ledge 158; 258 can present this height constantly all around the control key 150; 250 (and not only in the two opposite regions previously defined).
  • the flexible strips 165 deform to act on each driver 120; 220, located to the right of said flexible strips 165, in order to tilt it to allow the movement of the blade 118; 218.
  • each coach 120; 220 comprises at least two projecting parts 122; 222 directed towards the front intended to allow its actuation.
  • These projecting 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 slats 165 of a pair A, B of windows 160 so that when a flexible slat 165 is deformed, it acts on one of the projecting parts 122; 222 of coach 120; 220 corresponding.
  • These projecting 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 slats 165 of the windows 160 of the hubcap 130. They are aligned two by two along two longitudinal parallel 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 slats 165 of a pair A, B of windows 160 of the hubcap 230.
  • the height of the projecting parts 122; 222 is determined so that the end of a projecting part 122; 222 is placed at a distance from the flexible slat 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 strip 165 extending below the mean plane P.
  • the projecting parts 122: 222 do not exert tension on the flexible strips 165.
  • THE figures 3 And 6 represent a control key 150; 250 from hubcap 130; 230 of electrical 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 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 hubcap 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 hubcap 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 slat 165 on the right of a pair A, B of windows 160 maintains the control key 150; 250 in its stable position tilted to 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 allows the left portion of the rim 158 to be supported; 258 of control key 150; 250 on the rigid front 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 slat 165 on the left of the corresponding pair A, B of windows 160 which is in its deformed state. This helps avoid observing a hyperstatic situation. All 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 maintains the control key in its stable position tilted to the right side thanks to the support of the left stud on this flexible strip. Maintaining the left flexible slat on the left stud also allows the right portion of the edge to be supported on the rigid front wall.
  • the free end of the right stud is at a distance from the right flexible strip which is in its deformed state. This helps avoid observing a hyperstatic situation.
  • pressing a user's finger on a control key 150; 250 causes the control key 150 to toggle; 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 couple or two pairs A, B of windows 160 by the support of the stud(s) 152; 252 provided on the rear face of said key 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 to the right of 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, through their deformation, cause the coach 120 to tilt; 220, the integrity of the flexible sealing membrane 162 closing said windows 160 of the rigid front wall 140 of the hubcap 130 is preserved; 230, because this membrane is not directly acted upon during the operation of the electrical switch 100; 200.
  • the flexible sealing membrane 162 then plays its insulating role perfectly over time and follows the movement of the flexible tabs 165 which curve above and below the average plane P.
  • the sealing of the electrical switch 100; 200 is guaranteed because the flexible sealing membrane 162 is sufficiently flexible to adapt to the deformations of the flexible strip 165.

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  • Switch Cases, Indication, And Locking (AREA)

Claims (17)

  1. Zierblende (130; 230) eines dichten elektrischen Schalters (100; 200), wobei diese Zierblende (130; 230) eine steife Frontplatte (140) und eine flexible Dichtigkeitsmembrane (162) aufweist, wobei die steife Frontplatte (140) mindestens ein Paar (A, B) Öffnungen (160) aufweist,
    dadurch gekennzeichnet, daß jede der beiden Öffnungen (160) des Paars (A, B) teilweise durch eine flexible Lamelle (165) verdeckt ist, die dazu ausgelegt ist, sich zu verformen, um zwei stabile Zustände einzunehmen, und zwar einen Ruhezustand und einen Verformungszustand unter der Einwirkung einer auf die flexible Lamelle (165) ausgeübten Druckkraft, wobei die flexible Dichtigkeitsmembrane (162) den offenen Raum, der zwischen den Rändern jeder Öffnung (160) und den Rändern jeder flexiblen Lamelle (165) so abdeckt, daß jede Öffnung (160) vollständig geschlossen ist.
  2. Zierblende (130; 230) gemäß Anspruch 1, wobei sich die beiden flexiblen Lamellen (165) eines Paars (A,B) Öffnungen (160) entlang ein und derselben Längsachse (Z1, Z2) erstrecken.
  3. Zierblende (130; 230) gemäß einem der Ansprüche 1 und 2, wobei jede flexible Lamelle (165) zwei Enden aufweist, die mit dem Rand der Öffnung (160) durch eine ein Scharnier (166) bildende Verbindung verbunden ist.
  4. Zierblende (130; 230) gemäß Anspruch 3, wobei jede flexible Lamelle (165) mit einem Teil der steifen Frontplatte (140) ein einziges Stück bildet, wobei die das Scharnier (166) bildende Verbindung durch ein Filmscharnier gebildet ist.
  5. Zierblende (130; 230) gemäß einem der Ansprüche 1 bis 4, wobei jede flexible Lamelle (165) ein in Bezug auf eine mittlere Ebene (P) jeder Öffnung (160) gekrümmtes Profil hat, so daß sich jede flexible Lamelle (165) in dem einen der beiden stabilen Zustände oberhalb der mittleren Ebene (P) erstreckt und sich jede flexible Lamelle (165) im anderen der beiden stabilen Zustände unterhalb der mittleren Ebene (P) erstreckt.
  6. Zierblende (130; 230) gemäß einem der Ansprüche 1 bis 5, wobei die flexible Dichtigkeitsmembrane (162) durch Umspritzen der flexiblen Lamelle (165) mit einem weichen Material gefertigt ist.
  7. Zierblende (130; 230) gemäß einem der Ansprüche 1 bis 6, wobei mindestens eine Steuertaste (150; 250) vorgesehen ist, die auf der Rückseite (159; 259) einer Druckwandung (155; 255) für einen Finger eines Benutzers mindestens zwei Erhebungen (152) aufweist, die dazu bestimmt sind, auf den mindestens zwei flexiblen Lamellen (165) aufzuliegen, um sie zu verformen, wobei die steife Frontplatte (140) Mittel zum Kippen der Steuertaste (150; 250) zwischen zwei stabilen Positionen aufweist, wobei jede stabile Position dem Ruhezustand einer der beiden flexiblen Lamellen (165) eines Paars (A, B) Öffnungen (160) und dem verformten Zustand der anderen flexiblen Lamelle des Paars (A, B) Öffnungen (160) entspricht.
  8. Zierblende (130; 230) gemäß den Ansprüchen 5 und 7, wobei die Höhe jeder Erhebung (152) so bestimmt ist, daß sich das Ende einer Erhebung (152) in einem Abstand zu jeder flexiblen Lamelle (165), die sich unterhalb der mittleren Ebene (P) erstreckt, befindet, während das Ende der anderen Erhebung (152) auf jeder flexiblen Lamelle (165) ruht, die sich oberhalb der mittleren Ebene (P) erstreckt.
  9. Zierblende (130; 230) gemäß einem der Ansprüche 7 und 8, wobei ein Paar Erhebungen (152) jeder Steuertaste (150; 250) auf ein und derselben Achse angeordnet ist, die Druckwandung (155; 255) jeder Steuertaste (150; 250) nach außen hin von einem sich nach hinten erstreckenden Rand (158; 258) umgeben ist, der in mindestens zwei voneinander abgewandten Bereichen beiderseits der Erhebungen (152) des Paars Erhebungen in der Nähe der Achse eine Höhe hat, die so bestimmt ist, daß in jedem stabilen Zustand der Steuertaste (150; 250) ein Teil des Rands (158; 258) unter der Einwirkung der sich bis oberhalb der mittleren Ebene (P) erstreckenden flexiblen Lamelle (165) auf der steifen Frontplatte (140) aufliegt.
  10. Zierblende (130; 230) gemäß Anspruch 9, wobei der Rand (158; 258) über den gesamten Umfang jeder Steuertaste (150; 250) eine konstante Höhe aufweist.
  11. Zierblende (130; 230) gemäß einem der Ansprüche 1 bis 10, wobei die steife Frontplatte (140) durch Zusammenfügen einer mindestens zwei entlang ein und derselben Längsachse (Z1, Z2) ausgerichtete Öffnungen (145) aufweisenden Hauptplatte (142) und mindestens zwei in den Öffnungen (145) angeordneten Plättchen (167) gebildet ist, wobei jedes Plättchen (167) eine der teilweise durch eine der flexiblen Lamellen (165) verdeckten Öffnungen (160) aufweist.
  12. Zierblende (130; 230) gemäß Anspruch 11, wobei jedes Plättchen (167) auf die Hauptplatte (142) aufgeschweißt ist.
  13. Zierblende (130; 230) gemäß Anspruch 11, wobei jedes Plättchen (167) in die Hauptplatte (142) eingepreßt ist.
  14. Zierblende (130; 230) gemäß einem der Ansprüche 1 bis 13, wobei die flexiblen Lamellen (165) und die Ränder der Öffnungen (160) in einem Stück aus einem Plastikmaterial gefertigt sind.
  15. Elektrischer Schalter (100; 200) mit einem mit einem Mitnehmer (120; 220) versehenen Motor (110; 210) und einer Zierblende (130; 230) gemäß einem der Ansprüche 1 bis 14, wobei der Mitnehmer (120; 220) hervorstehende Teile (122; 222) aufweist, die gegenüber den flexiblen Lamellen (165) der Zierblende (130; 230) angeordnet sind und auf deren Enden die flexiblen Lamellen (165) aufliegen, um den Mitnehmer (120; 220) in zwei stabile Positionen zu kippen, die den beiden stabilen Positionen der Steuertaste (150; 250) entsprechen.
  16. Elektrischer Schalter (100; 200) gemäß Anspruch 15, wobei der Motor (110; 210) einen Sockel (112; 212) aufweist, der zu der Ausgestaltung eines Gehäuses (10) für die Aufbaumontage auf einer Seitenwand hinzugefügt ist.
  17. Elektrischer Schalter (100; 200) gemäß Anspruch 15, wobei der Motor (110; 210) einen Sockel (112; 212) aufweist, der zu der Ausgestaltung eines Einbaurahmens (20) für die Montage in einer Einbauöffnung hinzugefügt ist.
EP20211746.1A 2019-12-20 2020-12-04 Zierblende und elektrischer schalter, der eine solche zierblende umfasst Active EP3840002B1 (de)

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FR1915132A FR3105563B1 (fr) 2019-12-20 2019-12-20 Enjoliveur et commutateur électrique comprenant un tel enjoliveur

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Citations (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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2823905B1 (fr) * 2001-04-23 2004-01-30 Legrand Sa Dispositif de commande d'appareillages electriques etanche
JP2008177091A (ja) * 2007-01-19 2008-07-31 Tokai Rika Co Ltd スイッチ装置
FR3060197B1 (fr) * 2016-12-09 2019-05-10 Legrand France Commutateur electrique

Patent Citations (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

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