EP3840002A1 - Trim and electrical switch comprising such a trim - Google Patents
Trim and electrical switch comprising such a trim Download PDFInfo
- 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
Links
- 239000012528 membrane Substances 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 241000446313 Lamella Species 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 238000004078 waterproofing Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 244000007853 Sarothamnus scoparius Species 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 210000002105 tongue Anatomy 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002991 molded plastic Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
Images
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.
Landscapes
- Switch Cases, Indication, And Locking (AREA)
Abstract
L'invention concerne un enjoliveur d'un commutateur électrique étanche, cet enjoliveur comportant une paroi frontale rigide (140) et une membrane souple d'étanchéité (162).Selon l'invention, ladite paroi frontale rigide comporte au moins un couple (A, B) de fenêtres (160), chacune des deux fenêtres dudit couple étant partiellement obturée par une lamelle flexible (165) qui est adaptée à se déformer pour prendre deux états stables, à savoir un état de repos et un état déformé sous l'action d'une force de pression exercée sur ladite lamelle flexible, ladite membrane souple d'étanchéité obturant l'espace ouvert existant entre les bords de chaque fenêtre et les bords de chaque lamelle flexible de sorte que chaque fenêtre est complètement fermée.The invention relates to a cover for a sealed electrical switch, said cover comprising a rigid front wall (140) and a flexible sealing membrane (162). According to the invention, said rigid front wall has at least one pair (A , B) windows (160), each of the two windows of said pair being partially closed by a flexible strip (165) which is adapted to deform to take two stable states, namely a state of rest and a state deformed under the action of a pressure force exerted on said flexible lamella, said flexible sealing membrane closing off the open space existing between the edges of each window and the edges of each flexible lamella so that each window is completely closed.
Description
La présente invention concerne de manière générale le domaine des commutateurs électriques.The present invention relates generally to the field of electrical switches.
Elle concerne plus particulièrement un enjoliveur d'un commutateur électrique étanche, cet enjoliveur comportant une paroi frontale rigide et une membrane souple d'étanchéité.It relates more particularly to a cover of a sealed electrical switch, this cover comprising a rigid front wall and a flexible sealing membrane.
Un commutateur électrique étanche comporte généralement un boîtier et un couvercle étanche formant un volume interne dans lequel est positionné un mécanisme d'appareillage. Le commutateur électrique comprend des moyens de commande du mécanisme d'appareillage positionnés à l'extérieur du volume interne du boîtier. Les moyens de commande actionnent le mécanisme d'appareillage au travers du couvercle étanche.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.
Afin de garantir l'étanchéité du commutateur électrique, le couvercle est muni d'une membrane d'étanchéité qui recouvre le mécanisme d'appareillage.In order to guarantee the tightness of the electrical switch, the cover is provided with a waterproofing membrane which covers the switchgear mechanism.
Actuellement, deux configurations d'actionnement du mécanisme d'appareillage au travers de cette membrane d'étanchéité sont connues.Currently, two configurations of actuation of the fitting mechanism through this sealing membrane are known.
Selon une première configuration, comme le décrit par exemple le document
Cependant, une mauvaise introduction des éléments de commande au travers des ouvertures de la membrane d'étanchéité peut entraîner des déchirures de cette membrane (et donc altérer l'étanchéité) ou une mauvaise liaison mécanique entre les moyens de commande et le mécanisme d'appareillage (provoquant alors un fonctionnement instable du commutateur électrique).However, improper introduction of the control elements through the openings of the sealing membrane can lead to tearing of this membrane (and therefore impair the sealing) or a poor mechanical connection between the control means and the fitting mechanism. (then causing unstable operation of the electrical switch).
Selon une deuxième configuration, la membrane d'étanchéité n'est pas percée et recouvre complètement le mécanisme d'appareillage. L'actionnement du mécanisme d'appareillage s'effectue par la déformation de cette membrane d'étanchéité par les moyens de commande.According to a second configuration, 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.
Cependant, cette configuration entraîne des frottements entre les matières plastiques formant les moyens de commande, la membrane d'étanchéité et le mécanisme d'appareillage. Ces frottements gênent le fonctionnement des différents éléments du commutateur électrique. De plus, ils accélèrent l'usure de la membrane d'étanchéité et peuvent causer sur le long-terme une rupture de cette membrane.However, this configuration causes friction between the plastics forming the control means, the sealing membrane and the fitting mechanism. This friction interferes with the operation of the various elements of the electrical switch. In addition, they accelerate the wear of the waterproofing membrane and can cause rupture of this membrane over the long term.
Le but de la présente invention est donc de proposer un enjoliveur d'un commutateur électrique étanche, dans lequel les moyens de commande du commutateur électrique actionnent le mécanisme d'appareillage sans agir directement sur la membrane d'étanchéité qui recouvre ledit mécanisme afin de garantir simultanément un actionnement fiable du mécanisme et une étanchéité pérenne du commutateur électrique.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.
Plus particulièrement, on propose selon l'invention un enjoliveur conforme à la revendication 1.More particularly, according to the invention there is provided a hub cap according to claim 1.
Ainsi, avantageusement selon l'invention, l'enjoliveur comprend une partie rigide, une partie flexible et des ouvertures comblées par la membrane d'étanchéité. Cet enjoliveur est complètement fermé et donc étanche. L'actionnement du mécanisme d'appareillage se fait ici grâce à la déformation des lamelles flexibles. La membrane d'étanchéité n'est donc pas percée et n'est donc pas directement soumise aux contraintes exercées sur le mécanisme d'appareillage pour assurer le fonctionnement du commutateur électrique étanche.Thus, advantageously according to the invention, 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.
D'autres caractéristiques non limitatives et avantageuses de l'enjoliveur conforme à l'invention, prises individuellement ou selon toutes les combinaisons techniquement possibles, sont décrites dans les revendications 2 à 14.Other non-limiting and advantageous characteristics of the hubcap according to the invention, taken individually or in any technically possible combination, are described in claims 2 to 14.
L'invention concerne également un commutateur électrique conforme aux revendications 15 à 17.The invention also relates to an electrical switch according to claims 15 to 17.
La description qui va suivre en regard des dessins annexés, donnés à titre d'exemples non limitatifs, fera bien comprendre en quoi consiste l'invention et comment elle peut être réalisée.The description which will follow with reference to the appended drawings, given by way of nonlimiting examples, will make it clear what the invention consists of and how it can be implemented.
Sur les dessins annexés :
- la
figure 1 est une vue en perspective éclatée d'un commutateur électrique selon un premier exemple de mise en œuvre de l'invention, - la
figure 2 est une vue schématique en perspective assemblée du commutateur électrique de lafigure 1 , - la
figure 3 est une vue en coupe selon le plan A-A de lafigure 2 du commutateur électrique de lafigure 1 , - la
figure 4 est une vue en perspective éclatée d'un commutateur électrique selon un deuxième exemple de mise en œuvre de l'invention, - la
figure 5 est une vue schématique en perspective assemblée du commutateur électrique de lafigure 4 , - la
figure 6 est une vue en coupe selon le plan B-B de lafigure 5 du commutateur électrique de lafigure 4 , - la
figure 7 est une vue schématique avant d'une paroi frontale rigide d'un enjoliveur destiné à être intégré dans un commutateur électrique conforme à l'invention, - la
figure 8 est une vue schématique en perspective d'une partie du commutateur électrique conforme à l'invention, - la
figure 9 est une vue en perspective d'une plaquette destinée à être logée dans la plaque principale de l'enjoliveur du commutateur électrique conforme à l'invention, - la
figure 10 est une vue en coupe selon le plan C-C de la paroi frontale rigide de lafigure 7 , - la
figure 11 est une vue en perspective éclatée du commutateur électrique conforme à l'invention comprenant un boîtier destiné à être rapporté en saillie sur une paroi murale, et - la
figure 12 est une vue en perspective éclatée du commutateur électrique conforme à l'invention comprenant un cadre destiné à être monté sur une boîte d'encastrement encastrée dans une ouverture de la paroi murale.
- the
figure 1 is an exploded perspective view of an electrical switch according to a first example of implementation of the invention, - the
figure 2 is an assembled schematic perspective view of the electrical switch of thefigure 1 , - the
figure 3 is a sectional view on plane AA of thefigure 2 the electrical switch of thefigure 1 , - the
figure 4 is an exploded perspective view of an electrical switch according to a second exemplary implementation of the invention, - the
figure 5 is an assembled schematic perspective view of the electrical switch of thefigure 4 , - the
figure 6 is a sectional view along plane BB of thefigure 5 the electrical switch of thefigure 4 , - the
figure 7 is a schematic front view of a rigid front wall of a hub cap intended to be integrated into an electrical switch according to the invention, - the
figure 8 is a schematic perspective view of part of the electrical switch according to the invention, - the
figure 9 is a perspective view of a plate intended to be housed in the main plate of the cover of the electrical switch according to the invention, - the
figure 10 is a sectional view along the CC plane of the rigid front wall of thefigure 7 , - the
figure 11 is an exploded perspective view of the electrical switch according to the invention comprising a housing intended to be attached as a projection on a wall wall, and - the
figure 12 is an exploded perspective view of the electrical switch according to the invention comprising a frame intended to be mounted on a flush-mounted box embedded in an opening in the wall wall.
En préliminaire, on notera que d'une figure à l'autre, les éléments identiques des différentes variantes de réalisation du commutateur électrique selon l'invention seront, dans la mesure du possible, référencés par les mêmes signes de référence et ne seront pas décrits à chaque fois.As a preliminary, it will be noted that from one figure to another, the identical elements of the different variant embodiments of the electrical switch according to the invention will, as far as possible, be referenced by the same reference signs and will not be described. Everytime.
Les
Ce commutateur électrique 100 ; 200 peut être de tout type, actionné extérieurement par au moins une touche de commande 150 ; 250.This
Il peut s'agir d'un interrupteur simple, d'un interrupteur double ou d'un va-et-vient.It can be a single switch, a double switch or a two-way switch.
Mais l'invention concerne tout type de commutateur électrique.But the invention relates to any type of electrical switch.
Le premier mode de réalisation représenté sur les
Le deuxième mode de réalisation représenté sur les
Le terme « moteur » est utilisé, dans cette description, pour définir un mécanisme d'appareillage. Dans le domaine des appareillages électriques, le moteur d'un appareillage électrique comprend classiquement tous les éléments électriques de cet appareillage électrique (par exemple des bornes de connexion électrique) et l'entraîneur.The term "motor" is used, in this description, to define a fitting mechanism. In the field of electrical equipment, the motor of an electrical equipment comprises conventionally all the electrical elements of this electrical equipment (for example electrical connection terminals) and the driver.
Selon une variante représentée sur la
Selon une autre variante représentée sur la
Le commutateur électrique 100 ; 200 est raccordé au réseau électrique pour son alimentation.The
Dans la suite du texte, les termes « avant » et « arrière » seront utilisés par rapport à la direction de regard d'un utilisateur vers la paroi murale sur ou dans laquelle est rapporté ce commutateur électrique 100; 200. Ainsi, lorsque le commutateur électrique 100; 200 sera installé dans la pièce, l'avant désignera le côté tourné vers l'intérieur de la pièce, et l'arrière désignera le côté tourné à l'opposé, vers l'extérieur de la pièce. Plus généralement, l'avant du commutateur électrique 100 ; 200 désignera le côté tourné vers la personne qui le regarde et l'arrière désignera le côté tourné vers le support de réception du commutateur électrique 100 ; 200.In the remainder of the text, 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
Chaque commutateur électrique 100 ; 200 représenté sur les
Quel que soit le mode de réalisation représenté, le socle 112 ; 212 se présente sous la forme d'une enveloppe isolante. Cette enveloppe isolante peut être réalisée d'une seule pièce en matière plastique moulée.Whatever the embodiment shown, the
Comme le montrent les
L'enjoliveur 130 ; 230, qui sera décrit plus en détails ultérieurement, ferme de manière étanche l'avant du boîtier 10 saillie ou du cadre d'encastrement 20 dans lequel est monté le socle 112 ; 212 du moteur 110 ; 210, équipé d'un ou de plusieurs entraîneurs 120 ; 220 (
De façon avantageuse, le socle 112 ; 212 du moteur 110 ; 210 comporte ici six logements 103 ; 203, isolés les uns des autres, pour accueillir trois ou six bornes de connexion électrique en fonction qu'il s'agisse d'un commutateur électrique simple touche (
Selon le premier mode de réalisation représenté sur les
Les bornes de connexion électrique 114 ; 214 sont ici des bornes de connexion automatique.The
Classiquement, comme le montent plus particulièrement les
Pour son raccordement électrique à une des bornes de connexion électrique 114 ; 214 logée dans un desdits logements du socle 112 ; 212, l'extrémité dénudée d'un fil électrique (non représenté) provenant du réseau d'alimentation, est introduite, via une ouverture prévue au fond du socle 112 ; 212, à l'intérieur de la cage 114 ; 214 de ladite borne de sorte que l'âme dénudée conductrice dudit fil électrique soit coincée entre la paroi cylindrique de la cage 114a ; 214a et l'extrémité libre de la lame-ressort 114b ; 214b (
Pour extraire les fils électriques hors des bornes de connexion électrique 114; 214, il est prévu, de manière connue en soi, des poussettes 115 ; 215 (visibles sur les
De manière classique pour définir un circuit électrique, chaque commande est associée à trois bornes de connexion électrique 114 ; 214. Parmi les trois bornes de connexion électrique, dans les exemples représentés ici, les parties 114c ; 214c de la paroi cylindrique des cages 114a ; 214a de deux bornes de connexion électrique 114; 214 sont raccordées via des languettes conductrices 117 ; 217 à un grain de contact fixe 116 ; 216.Conventionally to define an electrical circuit, each command is associated with three
Comme le montrent les
Cette chape 113 ; 213 se présente sous la forme d'un profilé métallique dont la section a une forme globale de V. Ce profilé s'étend sensiblement parallèlement à un plan de support PS situé à l'arrière dudit socle 112 ; 212. Son axe longitudinal définit un axe de pivotement A1, B1 pour le balai 118 ; 218 (
Le balai 118 ; 218 se présente sous la forme d'une plaquette métallique en forme de L, dont une branche est reçue par sa tranche dans la chape 113 ; 213 de manière à établir le contact électrique et l'autre branche porte à son extrémité libre un grain de contact mobile 119 ; 219.The
A la faveur du déplacement d'un entraîneur 120 ; 220, le balai 118 ; 218 est pivoté autour dudit axe de pivotement A1 ; B1 entre deux positions extrêmes, pour mettre en contact ou hors contact le grain de contact 119 ; 219 mobile porté par le balai 118 ; 218, avec au moins un grain de contact fixe 116 ; 216 porté par l'une des languettes conductrices 117 ; 217 desdites bornes de connexion électrique 114; 214.Thanks to the displacement of a
Dans les modes de réalisation représentés sur les
Mais, selon un autre mode de réalisation, non représenté, on pourrait prévoir que chaque entraîneur présente une seule position stable (pour un commutateur de type push-push), chaque mouvement de basculement de l'entraîneur provoquant le basculement du balai entre ses deux positions stables. Il suffirait de prévoir à l'intérieur du socle du moteur un élément élastique agissant en permanence sur l'entraîneur pour le rappeler vers sa position stable.But, according to another embodiment, not shown, provision could be made for each driver to 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.
Un entraîneur 120 ; 220 est en effet associé à une seule commande donc à un seul circuit électrique.A
Sur l'exemple représenté sur les
Chaque entraîneur 120 ; 220 est ici monté mobile à pivotement autour d'un axe de basculement (non représenté) par rapport au socle 112 ; 212 du moteur 110 ; 210 afin de déplacer le balai 118 ; 218 entre deux positions.Each
Chaque entraîneur 120 ; 220 est adapté à déplacer le balai 118 ; 218 entre une position permettant de mettre en contact le grain de contact 119 ; 219 mobile avec un grain de contact 116 ; 216 fixe et une autre position dans laquelle le grain de contact 119 ; 219 mobile est mis en contact avec un autre grain de contact 116 ; 216 fixe.Each
En variante, l'entraîneur 120 ; 220 pourrait être adapté à déplacer le balai 118 ; 218 entre une position permettant de mettre en contact le grain de contact 119 ; 219 mobile avec un grain de contact 116 ; 216 fixe et une autre position dans laquelle le grain de contact 119 ; 219 mobile est mis hors contact de ce grain de contact 116 ; 216 fixe.Alternatively, the
Chaque entraîneur 120 ; 220 s'étend de part et d'autre de son axe de basculement à l'avant du socle 112 ; 212.Each
De manière classique, comme le montrent les
La largeur de la partie supérieure 121; 221 de l'entraîneur 120 ; 220 dépend du type de commande (simple ou double) du commutateur électrique 100 ; 200.The width of the
En considérant une largeur standard dite « d'un module » dans le cas d'une commande simple touche (
Dans le cas d'une commande double touche (
Comme le montre la
L'entraîneur 120 ; 220 est préférentiellement réalisé d'une seule pièce en matière plastique moulée.
La partie supérieure 121 ; 221 de chaque entraîneur 120 ; 220 est montée à l'avant du socle 112 ; 212, grâce à des tourillons (non visibles) engagés dans des paliers (non représentés) du socle 112 ; 212, de manière à fermer partiellement le socle 112 ; 212 à l'avant, l'élément tubulaire 226 de chaque entraîneur 120 ; 220 s'étendant à l'intérieur dudit socle 112 ; 212.The
Classiquement également, il est prévu des moyens élastiques de basculement de chaque balai 118 ; 218. Ces moyens élastiques de basculement comprennent un ressort monté dans l'élément tubulaire 226 de chaque entraîneur 120 ; 220, apte, après franchissement d'un point dur, à solliciter chaque balai 118 ; 218 en direction de l'une ou de l'autre de ses positions extrêmes en fonction de la position de l'entraîneur 120 ; 220.Also conventionally, resilient tilting means are provided for each
Pour cela, chaque entraîneur 120 ; 220 présente à l'extrémité libre de son élément tubulaire 226 une forme de fourchette destinée à venir à cheval sur une partie transversale du balai 118 ; 218 correspondant. La branche du balai 118 ; 218 reçue dans la chape 113 ; 213 présente, sur sa tranche opposée à la tranche en contact avec la chape 113 ; 213, un relief sur lequel le ressort dédié est monté.For this, each
Dans le cas d'une commande simple touche (
Le mouvement de l'entraîneur 120 ; 220 entraîne ainsi le mouvement du ressort, qui entraîne le mouvement du balai 118 ; 218 de manière à permettre un basculement rapide et précis du balai 118 ; 218 entre les deux positions extrêmes tout en évitant la formation d'arcs électriques.The movement of the
De manière avantageuse ici, un même socle présente donc des moyens de montage permettant d'accueillir un unique entraîneur dans le cas d'une commande simple ou deux entraîneurs différents dans le cas d'une commande double. Un seul socle universel peut donc être fabriqué pour adapter le moteur à une configuration de commande simple ou de commande double du commutateur électrique conforme à l'invention.Advantageously here, 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.
La présente invention porte plus particulièrement sur l'agencement de l'enjoliveur 130 ; 230 du commutateur électrique 100 ; 200 qui, avantageusement, permet de faire basculer l'entraîneur 120 ; 220 du moteur 110 ; 210 tout en garantissant l'étanchéité durable du commutateur électrique 100 ; 200.The present invention relates more particularly to the arrangement of the
L'enjoliveur 130 ; 230 est représenté plus particulièrement sur les
Comme cela est représenté sur les
La paroi frontale rigide 140 présente une forme adaptée à l'ouverture avant du boîtier 10 pour le montage en saillie (
La paroi frontale rigide 140 forme donc un couvercle qui ferme à l'avant le commutateur électrique 100 ; 200 en se fixant sur le boîtier 10 saillie (
La paroi frontale rigide 140 se place au-dessus de chaque entraîneur 120 ; 220. Elle isole de l'extérieur le moteur 110 ; 210 équipé de son ou de ses entraîneurs 120 ; 220, pour le protéger des poussières ou des liquides qui pourraient l'endommager.The rigid
La paroi frontale rigide 140 porte, sur sa face avant, une série de paliers 147, 148 dont les axes sont alignés suivant un même axe médian L, servant au montage à pivotement de la ou les touches de commande 150 ; 250 de l'enjoliveur 130 ; 230 (voir
Plus particulièrement, chaque touche de commande 150 ; 250 comprend des tourillons 157 ; 257 à engager dans les paliers 147, 148 pour son assemblage sur la paroi frontale rigide 140 de l'enjoliveur 130 ; 230. Chaque touche de commande 150 ; 250 est alors apte à basculer autour de l'axe médian L formant l'axe de basculement (visible sur les
Comme le montrent les
La largeur de chaque touche de commande 150; 250 dépend du type de commande (simple ou double) du commutateur électrique 100 ; 200. Dans le cas d'une commande simple touche (
Dans le cas d'une commande double touche (
Chaque touche de commande 150 ; 250, actionnée par un utilisateur, est adaptée à agir sur chaque entraîneur 120 ; 220 au travers de ladite paroi frontale rigide 140 pour le faire basculer entre ses deux positions extrêmes afin d'ouvrir ou de fermer les contacts électriques de moteur 110 ; 210.Each
Pour cela, comme le montre notamment la
Les deux couples A, B de fenêtres 160 sont positionnés selon deux axes parallèles Z1, Z2 (voir
Comme le montrent les
Pour un couple A, B de fenêtres 160, les parties allongées de chaque fenêtre 160 sont donc alignées sur un même axe Z1, Z2. Dans l'exemple représenté sur la
Comme cela est représenté sur les
Afin de garantir l'étanchéité du commutateur électrique 100 ; 200, dans chaque fenêtre 160, l'espace ouvert disponible entre les bords de la fenêtre 160 et les bords libres de la lamelle flexible 165 est obturé complètement par la membrane souple d'étanchéité 162.In order to guarantee the tightness of the
Ainsi, comme le montre la
Dans chaque fenêtre 160, cette membrane souple d'étanchéité 162 est réalisée par surmoulage d'une matière souple autour de la lamelle flexible 165.In each
Comme le montrent plus particulièrement les
Chaque fenêtre 160 est formée sur une plaquette 167 (
Chaque plaquette 167 est fixée dans chaque ouverture 145 en étant emboîtée, soudée ou emmanchée à force dans celle-ci.Each
Bien entendu, selon une variante non représentée, on pourra prévoir que chaque fenêtre soit formée directement dans la paroi frontale rigide de l'enjoliveur.Of course, according to a variant not shown, provision can be made for each window to be formed directly in the rigid front wall of the hubcap.
Ainsi, ici, les lamelles flexibles 165 et les plaquettes 167 sont réalisées par moulage, d'une seule pièce en matière plastique. Cette matière plastique est par exemple du polypropylène (PP) de type métalocène, ou du polypropylène chargé à 10 ou 15% en fibres de verre, ou du polyamide (de type PA66 ST801 ou PA6 0865000000) ou encore du polyamide chargé à 10 ou 15% en fibres de verre.Thus, here, the
Afin de pouvoir être déformée sans se casser, chaque lamelle flexible 165 présente une épaisseur plus mince que celle de la plaquette 167 correspondante, assurant ainsi sa flexibilité.In order to be able to be deformed without breaking, each
Selon l'invention, chaque lamelle flexible 165 est adaptée à se déformer pour prendre deux états stables : un état de repos et un état déformé sous l'action d'une force de pression exercée par la ou une des touches de commande 150; 250.According to the invention, each
La déformation de chaque lamelle flexible 165 sans détérioration du commutateur électrique 100 ; 200 est possible car chaque lamelle flexible 165 présente deux extrémités raccordées au bord de la fenêtre 160 associée par une jonction formant charnière 166. Comme le montrent les
Comme visible sur les
La force de pression provoquant la déformation de l'une des lamelles flexibles 165 associées à un couple A, B de fenêtres 160 est générée par l'appui d'un doigt d'un utilisateur sur une touche de commande 150 ; 250.The pressure force causing the deformation of one of the
En effet, comme le montrent les
Comme cela est visible sur les
Dans le cas d'un commutateur électrique 100 simple touche, la face arrière 159 de la touche de commande 150 comprend quatre plots 152, alignés deux à deux selon deux axes parallèles longitudinaux (non représentés) perpendiculaires à l'axe médian L.In the case of a single-key
Dans le cas d'un commutateur électrique 200 double touche, la face arrière 259 de chaque touche de commande 250 comprend un couple de deux plots 152 alignés selon un axe longitudinal perpendiculaire à l'axe médian L.In the case of a double-key
Lors du basculement de chaque touche de commande 150; 250, les plots 152 ; 252 sont destinés à prendre appui sur les lamelles flexibles 165 d'un couple A, B de fenêtres 160 pour les déformer.When switching each
Pour cela, de manière préférentielle, comme le montrent les
Dans le cas d'un commutateur électrique 100 simple touche (
Dans le cas d'un commutateur électrique 200 double touche (
Le rebord 158 ; 258 peut présenter cette hauteur de manière constante sur tout le pourtour de la touche de commande 150; 250 (et non pas uniquement dans les deux régions opposées précédemment définies).The
De manière avantageuse, les lamelles flexibles 165 se déforment pour agir sur chaque entraîneur 120 ; 220, situé au droit desdites lamelles flexibles 165, afin de le faire basculer pour permettre le déplacement du balai 118 ; 218.Advantageously, the
Pour cela, comme le montrent les
Dans le cas d'un commutateur électrique 100 simple touche (
Dans le cas d'un commutateur électrique 200 double touche (
De manière préférentielle, la hauteur des parties en saillie 122 ; 222 est déterminée de manière à ce que l'extrémité d'une partie en saillie 122 ; 222 soit placée à distance de la lamelle flexible 165 du couple A, B de fenêtres 160 s'étendant au-dessus du plan moyen P et que l'extrémité de l'autre partie en saillie 122 ; 222 repose sur la lamelle flexible 165 s'étendant en-dessous du plan moyen P. De manière avantageuse également, les parties en saillie 122 : 222 n'exercent pas de tension sur les lamelles flexibles 165.Preferably, the height of the projecting
Les
Dans cet état stable, l'extrémité gauche de ladite touche de commande 150 ; 250 est rapprochée au maximum de la paroi frontale rigide 140 de l'enjoliveur 130 ; 230, ladite touche de commande 150 ; 250 formant un angle α de l'ordre de 5 degrés avec la face avant de la paroi frontale rigide 140. La lamelle flexible 165 de droite d'un couple A, B de fenêtres 160 maintient la touche de commande 150 ; 250 dans sa position stable basculée du côté gauche grâce à l'appui du plot 152 ; 252 de droite sur cette lamelle flexible 165. Le maintien de la lamelle flexible 165 de droite sur le plot 152 ; 252 de droite permet également de mettre en appui la portion gauche du rebord 158 ; 258 de la touche de commande 150 ; 250 sur la paroi rigide frontale 140. L'extrémité libre du plot 152 ; 252 de gauche est quant à elle, comme cela est visible sur les
De manière symétrique, lorsque la touche de commande est basculée du côté droit (configuration non représentée), l'extrémité droite de celle-ci est rapprochée de la paroi frontale rigide de l'enjoliveur, ladite touche de commande formant un angle de l'ordre de 5 degrés avec la face avant de la paroi frontale rigide. La lamelle flexible de gauche maintient la touche de commande dans sa position stable basculée du côté droit grâce à l'appui du plot de gauche sur cette lamelle flexible. Le maintien de la lamelle flexible de gauche sur le plot de gauche permet également de mettre en appui la portion droite du rebord sur la paroi rigide frontale. L'extrémité libre du plot de droite est quant à elle à distance de la lamelle flexible de droite qui est dans son état déformé. Cela permet d'éviter d'observer une situation hyperstatique.Symmetrically, when the control key is tilted to the right side (configuration not shown), 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.
On comprend alors que l'appui d'un doigt d'un utilisateur sur une touche de commande 150; 250 entraîne le basculement de la touche de commande 150; 250 autour de l'axe médian L, depuis un état stable, par exemple basculée du côté gauche, vers un autre état stable, basculée du côté droit, et la déformation d'une ou de deux languettes flexibles 165 d'un couple ou de deux couples A, B de fenêtres 160 par l'appui du ou des plots 152 ; 252 prévus sur la face arrière de ladite touche de commande 150 ; 250. Cette ou ces languettes flexibles 165 provoquent, en se déformant, le basculement de l'entraîneur 120 ; 220 dont la ou les parties en saillie 122 ; 222 se trouvent au droit de ladite ou desdites languettes flexibles 165, et, ce faisant, l'ouverture ou la fermeture des contacts électriques du moteur 110 ; 210.It is then understood that the pressing of a finger of a user on a
Grâce aux languettes flexibles 165 qui, par leur déformation, entraînent le basculement de l'entraîneur 120 ; 220, on préserve l'intégrité de la membrane souple d'étanchéité 162 fermant lesdites fenêtres 160 de la paroi frontale rigide 140 de l'enjoliveur 130 ; 230, car cette membrane n'est pas directement sollicitée au cours du fonctionnement du commutateur électrique 100 ; 200. La membrane souple d'étanchéité 162 joue alors parfaitement son rôle d'isolation au fil du temps et suit le mouvement des languettes flexibles 165 qui se courbent au-dessus et en-dessous du plan moyen P.Thanks to the
De manière avantageuse, lors de la déformation des lamelles flexibles 165, l'étanchéité du commutateur électrique 100 ; 200 est garantie car la membrane souple d'étanchéité 162 est suffisamment souple pour s'adapter aux déformations de la lamelle flexible 165.Advantageously, during the deformation of the
La présente invention n'est pas limitée aux modes de réalisation décrits et représentés sur les différentes figures, mais l'homme du métier saura y apporter toute variante conforme à son esprit.The present invention is not limited to the embodiments described and shown in the various figures, but those skilled in the art will know how to make any variant in accordance with their spirit.
Claims (17)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1915132A FR3105563B1 (en) | 2019-12-20 | 2019-12-20 | Trim and electrical switch comprising such a trim |
Publications (3)
Publication Number | Publication Date |
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EP3840002A1 true EP3840002A1 (en) | 2021-06-23 |
EP3840002B1 EP3840002B1 (en) | 2024-05-01 |
EP3840002C0 EP3840002C0 (en) | 2024-05-01 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP20211746.1A Active EP3840002B1 (en) | 2019-12-20 | 2020-12-04 | Trim and electrical switch comprising such a trim |
Country Status (3)
Country | Link |
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EP (1) | EP3840002B1 (en) |
ES (1) | ES2983658T3 (en) |
FR (1) | FR3105563B1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1253609A1 (en) | 2001-04-23 | 2002-10-30 | Legrand | Sealed operating device for electrical apparatus |
US20080173530A1 (en) * | 2007-01-19 | 2008-07-24 | Kabushiki Kaisha Tokai Rika Denki Seisakusho | Switch unit |
EP3333870A1 (en) * | 2016-12-09 | 2018-06-13 | Legrand France | Electrical switch |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10302575A (en) * | 1997-04-24 | 1998-11-13 | Anritsu Corp | Waterproof switch |
-
2019
- 2019-12-20 FR FR1915132A patent/FR3105563B1/en active Active
-
2020
- 2020-12-04 ES ES20211746T patent/ES2983658T3/en active Active
- 2020-12-04 EP EP20211746.1A patent/EP3840002B1/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1253609A1 (en) | 2001-04-23 | 2002-10-30 | Legrand | Sealed operating device for electrical apparatus |
US20080173530A1 (en) * | 2007-01-19 | 2008-07-24 | Kabushiki Kaisha Tokai Rika Denki Seisakusho | Switch unit |
EP3333870A1 (en) * | 2016-12-09 | 2018-06-13 | Legrand France | Electrical switch |
Also Published As
Publication number | Publication date |
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FR3105563B1 (en) | 2022-01-07 |
EP3840002B1 (en) | 2024-05-01 |
EP3840002C0 (en) | 2024-05-01 |
FR3105563A1 (en) | 2021-06-25 |
ES2983658T3 (en) | 2024-10-24 |
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