EP1542321B1 - Electrical device having two coupling parts with keying means - Google Patents

Electrical device having two coupling parts with keying means Download PDF

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Publication number
EP1542321B1
EP1542321B1 EP04292914A EP04292914A EP1542321B1 EP 1542321 B1 EP1542321 B1 EP 1542321B1 EP 04292914 A EP04292914 A EP 04292914A EP 04292914 A EP04292914 A EP 04292914A EP 1542321 B1 EP1542321 B1 EP 1542321B1
Authority
EP
European Patent Office
Prior art keywords
base
key coding
cartridge
recess
hub
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.)
Not-in-force
Application number
EP04292914A
Other languages
German (de)
French (fr)
Other versions
EP1542321A1 (en
Inventor
Fernando Araujo
Martial Rouffanche
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Legrand SNC
Legrand France SA
Original Assignee
Legrand SNC
Legrand France SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Legrand SNC, Legrand France SA filed Critical Legrand SNC
Priority to PL04292914T priority Critical patent/PL1542321T3/en
Publication of EP1542321A1 publication Critical patent/EP1542321A1/en
Application granted granted Critical
Publication of EP1542321B1 publication Critical patent/EP1542321B1/en
Anticipated expiration legal-status Critical
Not-in-force legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/64—Means for preventing incorrect coupling
    • H01R13/645—Means for preventing incorrect coupling by exchangeable elements on case or base
    • H01R13/6453—Means for preventing incorrect coupling by exchangeable elements on case or base comprising pin-shaped elements, capable of being orientated in different angular positions around their own longitudinal axes, e.g. pins with hexagonal base

Definitions

  • the invention generally relates to electrical appliances having two portions nestable with each other and polarizing means of a portion relative to each other.
  • Surge arresters limit transient overvoltages and discharge lightning currents in order to protect one or more electrical devices from a surge caused by lightning.
  • the modular surge arresters comprise a base attached to the electrical panel and provided with connection terminals for the conductors concerned and a cartridge containing the protection circuit, which is destroyed when it performs its protective function so that the cartridge must then to be replaced.
  • the keying is effected by two elements cooperating by complementarity of form, a first element having a triangular recess and a second element having a triangular prismatic projection.
  • the cartridge can not fit on a base for which the angular orientation of the recess corresponds to the angular orientation of the projection.
  • the object of the invention is to simplify the production of this type of electrical appliance.
  • the invention proposes an electrical apparatus comprising a first portion and a second portion, the first portion and the second portion being nestable with each other, the first portion comprising a first foolproofing element to prevent the first portion from nesting with a portion similar to the second portion but belonging to another electrical appliance, the second portion comprising a second foolproofing element paired with the first foolproofing element to prevent nesting the second portion with a portion similar to the first portion but belonging to another electrical apparatus, the first portion having a housing of the first keying element, said first element being received in said housing in a selected predetermined position, so that the first keying element and the second keying element are matched, among a plurality of possible positions each corresponding to a distinct angular orientation of the first element relative to the first portion, the first element having V-shaped depressions on a peripheral surface, each adapted to cooperate with a full V of a peripheral surface of the housing, the first element further comprising a first keying member adapted to cooperate with a second keying member of the second element by
  • the angular orientation of the foolproofing means of the first portion can be modified, while these are already in position and assembled with the first portion, so as to match them with those of the second portion.
  • the invention allows to produce first undifferentiated portions, for example bases, and to give them their indexing only later as a function of the second portion, for example a cartridge, that they will receive interlocking.
  • the production is simplified and it is not useful to provide stocks of different first portions.
  • the electrical device shown on the figure 1 is a surge arrester comprising a base 1 and a cartridge 2.
  • the base 1 comprises two main walls 3 each U connected to each other by side walls. It comprises a housing formed by two molded plastic shells 4 and 5 joined to each other along the plane of symmetry parallel to the main walls 3.
  • Each main wall 3 comprises a first rectangular section 6 having two ends from which extend transversely to the first section 6 two rectangular sections 7, 8.
  • Each U-shaped wall 3 has an inner edge 9 also in the general shape of U. Along the edge of the first section 6, the edge 9 has a recess 10 towards the outside of the first section 6. The height of offset is very less than the distance between two opposite edges of the first section 6.
  • Each end portion of the edge 9 has a recess 11 inwardly of the wall 3.
  • the two recesses 11 are not located at the same distance from the rest of the edge 9.
  • Each wall 3 further has an outer edge 12 in the shape of a U and two returns 13.
  • Each return 13 connects one end of the edge 9 to one end of the edge 12 and is at one end of a section 7, 8.
  • Each wall 14 is rectangular and comprises at its center a circular through hole 15.
  • a U-shaped side wall 16 extends between the two edges 12.
  • the wall 16 comprises a bottom and two wings 17.
  • the bottom comprises conventional fixing means 18 of the base 1 on a DIN rail (not shown) of the electrical panel.
  • Each wing 17 is provided towards the bottom of a substantially rectangular opening 19 and towards the wall 14 of a slot 20 which is also rectangular, the slot 20 extending in a principal direction parallel to the plane of the wall 14.
  • a second U-shaped side wall 21 extends between the main walls 3. It comprises a bottom 22 and two flanges 23.
  • the section of the wall 21 generally follows the outline of the edge 9.
  • Each flange 23 extends transversely to the wall 14 along the recess 11 to the bottom 22.
  • the bottom 22 is transverse to the flanges 23 and extends under the edge 9 and the recess 10 so that each wall 3 protrudes generally in the interior of the U formed by the wall 21.
  • the bottom 22 has a circular hole 25 located slightly away from the center of the bottom 22.
  • the bottom 22 has a generally square slightly elevated zone extending over the entire width of the bottom 22.
  • the hole 25 is located in the center of this raised area.
  • Each slot 24 extends over almost the entire width of the bottom 22.
  • each opening 19 is a cage terminal 26 controlled by a screw whose head is at the slot 20, each screw head being accessible, for its control, through the hole 15.
  • Each of the two cells opening through a slot 24 is electrically connected to a respective terminal 26.
  • the base 1 comprises a housing for a keying element 27 described below.
  • the housing is located under the raised area of the bottom 22 and has a height substantially equal to the thickness of the bottom wall 22.
  • the bottom of the housing (not shown) is open and has two cross members to support the element 27 when in position in the housing.
  • a side wall having a star-shaped hollow with eight branches.
  • the branches of the star are identical. They are each shaped like the corner of a square. Two successive branches are separated by a full V and the housing has spikes 28 at each junction between two branches.
  • the element 27 is made of molded plastic. It is shaped like a pinion. Its thickness corresponds to that of the housing.
  • the element 27 comprises a hub 29, eight arms 30 and eight arches 31.
  • the hub 29 is generally circular. It has in its center a recess 32 with triangular section.
  • Each arch 31 extends between two successive arms, each arm 30 extending between the hub 29 and the junction between two consecutive arches.
  • the arches 31 rise to a height less than the height of the arms 30.
  • the arches 31 have a constant thickness from one end to the other.
  • Each assembly formed of an arch 31 and two successive arms 30 between which this arch extends defines with the periphery of the hub 29 an opening 33.
  • the element 27 is placed in the housing, each point 28 of the housing being in contact with one of the edges 34 located on the periphery of the element 27, at the junction between two successive arches.
  • each edge 34 corresponds to the tip of a hollow V in which is received a full V also housing.
  • Each arch 31 is placed in a star branch of the housing.
  • the recess 32 is the image of itself by 120 ° rotation and the remainder of the element 27 is the image of itself by rotation of 45 °, the eight possible positions of the element 27 in the housing correspond to eight distinct angular orientations for the recess 32.
  • the element 27 being placed in the housing, the two shells 4, 5 are assembled releasably, for example by ultrasonic welding.
  • the hole 25 then leaves the coding element 27 only the hub 29 and the recess 32.
  • Cartridge 2 is now described, in particular with reference to the figure 3 .
  • the cartridge 2 is generally parallelepipedic. It comprises two main walls 40 between which extend four side walls of the same width as that of the bottom 22 of the base 2.
  • the main walls 40 are generally square and identical. The width of the side of the square corresponds to the length of the bottom 22. Each wall 40 has four sides 41, 42, 43, 44.
  • the part 45 of the cartridge 2 that we see below on the figure 3 is intended to be included in the volume of the base 1 provided for this purpose while the remaining portion 46 of the cartridge 2 is intended to project above the base 1.
  • the portion 45 has the side 41 and a portion 42a, 44a of the two adjacent sides.
  • the portion 46 has the side 43 opposite the side 41 and a portion 42b, 44b of the two adjacent sides.
  • each main wall 40 along its sides 41, 42a, 44a, has a recess 47 of wall corresponding to the thickness of the wall 3.
  • the outline of this recess 47 corresponds to the outline of the edge 9 and in particular the recesses 10, 11.
  • each outer face of the wall 40 is located in the same plane as the outer face of a wall 3.
  • the side 43 is slightly smaller than the side 41. And the sides 42b, 44b are placed parallel but recessed with respect to the sides 42a, 44a.
  • One of the walls 40 has notches along the edges 42b, 44b. These notches correspond to grooves made in the side walls.
  • the wall 50 comprises an oblong hole 51 and a plate 52 transparent on one of its ends.
  • the oblong hole 51 opens on a portion of a tongue (not visible in the drawings) movable between several positions.
  • the position of the tab depends on the condition of the cartridge. In normal operation, the hole opens on a green portion.
  • the plate 52 is provided with means forming a slideway to be cleared and to open access to a registration area.
  • the side wall portions joining the edges 42b and the edges 44b have grooves 53 extending from a wall 40 but not to the opposite wall 40.
  • the side wall portion joining the end portions of the edges 44a of the two walls 40 carries two ribs 54 of triangular base extending over the entire width of the side wall.
  • the ribs 54 form latching means of the cartridge 2 on the base 1 by means of complementary latching means on the base 1 (not shown).
  • the cartridge 2 has a fourth lateral wall opposite the side wall 50.
  • the outer face of the fourth wall is intended to come into contact with the bottom face 22 of the base 1.
  • the fourth wall has an opening 57 located slightly away from its center.
  • the opening 57 is of oblong shape, with two parallel sides (visible on the Figures 3 and 5 ) and two sides in an arc (not visible in the drawings).
  • the fourth wall comprises a generally square zone slightly offset towards the inside of the cartridge 2 extending over the entire width of the fourth wall.
  • the opening 57 is in the center of this area.
  • a pin 56 which corresponds to a hole (not shown) in the bottom 22.
  • the pin 56 and the hole form security means for not using a cartridge 2 out of operation.
  • the casing of the cartridge 2 is made of molded plastic. It is formed by a flat shell corresponding essentially to the wall 40 visible in the drawings and by a shell corresponding to the other wall 40 and the side walls.
  • the inside of the cartridge 2 will not be described in detail. It will simply be noted that this latter comprises a component whose purpose is to rapidly limit the high voltages appearing at its terminals. It can be a spark gap, a varistor or a clipping diode. The terminals of the component are each connected to a respective pin 58.
  • the cartridge 2 also comprises a compartment for the tongue described above and for a detection member of the end of the normal operation of the component.
  • the cartridge 2 comprises a housing for a keying element 60 described below.
  • the housing is located at the square zone offset with the opening 57.
  • This housing comprises, inside the cartridge 2, a space 75 for receiving a base 61 of the coding element 60 of the cartridge 2.
  • the space 75 is delimited laterally by a generally U-shaped surface 76 having two parallel portions joined by a half-star portion identical to one half of the star already described for the base 1.
  • the half-star comprises three complete branches and two half-branches each located at a respective junction with one of the parallel portions, so that the half-star has four points.
  • the parallel portions of the surface 76 are parallel to the parallel sides of the opening 57 while the half-star portion is generally centered on a line parallel to the arcuate portion of the opening 57.
  • the space 75 is delimited by a flat surface transverse to the surface 76.
  • the element 60 comprises a base 61, which is a star with eight branches of the same shape as that already described for the base 1.
  • the thickness of the base 61 is equivalent to that of the surface 76
  • Each junction between two consecutive branches presents, on the peripheral surface, an edge 62.
  • From the base 61 projects a trunnion forming a spacer between the base 61 and a circular plate 63, the trunnion having a diameter corresponding to that of the arcuate part of the opening 57, this diameter being smaller than that of the plate 63, which has a diameter substantially corresponding to that of the circle which passes through the edges 62.
  • the plate 63 protrudes a keying member 64.
  • the member 64 is a stud having the shape of a solid triangular prism centered on the plate 63.
  • the height of the member 64 is much greater than the total height of the base 61, journal and plate 63.
  • the free end of the member 64 is triangular.
  • the three edges have sloped angles.
  • the end further comprises a rib 65 joining one of the vertices of the triangle and the middle of the opposite edge.
  • the element 60 is placed in the housing 75, the four points of the housing being in contact with four of the eight edges 62 of the element 60, the pin being disposed in the opening 57.
  • the element 60 can take eight different angular orientations.
  • the element 60 is held in a position determined by the shell having the wall 40 visible in the drawings.
  • This shell comprises a transverse tab (not shown) projecting along its edge 41 and forming one of the arcuate sides of the opening 57.
  • the element 60 is first put in place with the required angular orientation in the shell providing the side walls of the cartridge 2, this setting up being possible because the part of the opening 57 belonging to the this shell is opened at the place occupied next by the paw of the other shell.
  • the cartridge 2 is assembled releasably, for example by ultrasonic welding of two shells.
  • the element 60 is then rigidly secured to the rest of this assembled cartridge 2.
  • the indexing tool 70 is now described, allowing, if necessary, changing the angular orientation of the element 27 relative to the rest of the base 1.
  • the tool 70 is a bent key whose end is a triangular prism 71.
  • the dimensions of the prism 71 are the same as those of the organ 64 described above.
  • the tool 70 is adapted to pass through the triangular opening of the foolproofing element 27.
  • the angular orientation of the element 60 which is final after assembly of the cartridge 2, has been selected according to the capacity of the cartridge 2.
  • the angular orientation of the element 27 is however modifiable after assembly.
  • the orientation of the element 27 must be in agreement with the only appropriate angular orientation for the element 60.
  • the tool 70 is thus used.
  • the end 71 of the tool is penetrated into the triangular recess of the element 27.
  • the arches 31 deform by flexing each elastically. in a hole 33, the element 27 rotating under the effect of the rotation of the key until each point 28 is in contact with the edge 34 consecutive to the initial edge. Element 27 then rotated one-eighth of a turn.
  • the cartridge 2 can be fitted on the base 1: the member 64 enters the recess 32, the pins 58 fit into the cells 80 and the means 56 engage in the corresponding hole of the base 1.
  • the coding element 27 is advantageously chosen for the position corresponding to the most common cartridge, so that it is not necessary to modify the angular orientation of the element 27 that if the base 1 must be matched with another cartridge.
  • the outer shape of the base 1 and the cartridge 2, their relative dimensions and their geometry are different; the polarizing elements 27, 60 have other shapes and / or dimensions, in particular, other star shapes, recess, or an absence of rib on the member 63; and / or the prism is provided on the element 27 and the opening on the element 60, or other complementary shapes are provided.
  • the keying element 60 and the cartridge 2 are monobloc; and / or the coding element whose angular orientation can be modified is the element of the cartridge 2 rather than that of the base 1, or the angular orientation of the foolproofing element of each of them can to be modified.
  • the electrical device with flanged cartridge and cartridge is a device other than a surge arrester; and / or the two nestable portions of the apparatus are other than a base and a cartridge.

Landscapes

  • Casings For Electric Apparatus (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Measuring Fluid Pressure (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The appliance has a fixed connector (1) and a cartridge, each with a keying unit. The keying unit (27) of the connector has a hub, arms and arches. Each arch is convex towards outside and is connected to the hub through the arms. Each arch is deformable and can be bent elastically towards the hub in a space between the hub and arms since angular orientation of the unit (27) is selected in an assembled state of the connector.

Description

L'invention concerne d'une manière générale les appareils électriques comportant deux portions emboîtables l'une avec l'autre et des moyens de détrompage d'une portion par rapport à l'autre.The invention generally relates to electrical appliances having two portions nestable with each other and polarizing means of a portion relative to each other.

On sait qu'il existe déjà des appareils électriques de ce type (cf US-B1-6302745 ), notamment des parafoudres modulaires.We know that there are already electrical appliances of this type (cf. US-B1-6302745 ), including modular surge arresters.

Les parafoudres limitent les surtensions transitoires et écoulent les courants de foudre dans le but de protéger un ou plusieurs appareils électriques d'une surtension due à la foudre.Surge arresters limit transient overvoltages and discharge lightning currents in order to protect one or more electrical devices from a surge caused by lightning.

En fonction de différents critères comme le niveau d'exposition de la zone, la présence d'un paratonnerre sur/ou proche du bâtiment, la nature des matériels à protéger, on sélectionne le niveau de protection que doit fournir le parafoudre.Depending on different criteria such as the level of exposure of the area, the presence of a lightning conductor on / or near the building, the nature of the equipment to be protected, we select the level of protection that must provide the surge arrester.

En pratique, les parafoudres modulaires comportent une embase fixée au tableau électrique et munie de bornes de connexion pour les conducteurs concernés et une cartouche renfermant le circuit de protection, lequel est détruit lorsqu'il remplit sa fonction de protection de sorte que la cartouche doit ensuite être remplacée.In practice, the modular surge arresters comprise a base attached to the electrical panel and provided with connection terminals for the conductors concerned and a cartridge containing the protection circuit, which is destroyed when it performs its protective function so that the cartridge must then to be replaced.

Le détrompage permet d'éviter de placer sur une embase une cartouche procurant un niveau de protection différent.Keying avoids placing on a base a cartridge providing a different level of protection.

Le détrompage est réalisé par deux éléments coopérant par complémentarité de forme, un premier élément comportant un évidement triangulaire et un deuxième élément comportant une saillie prismatique triangulaire.The keying is effected by two elements cooperating by complementarity of form, a first element having a triangular recess and a second element having a triangular prismatic projection.

La cartouche ne peut s'emboîter que sur une embase pour laquelle l'orientation angulaire de l'évidement correspond à l'orientation angulaire de la saillie.The cartridge can not fit on a base for which the angular orientation of the recess corresponds to the angular orientation of the projection.

Le but de l'invention est de simplifier la production de ce type d'appareil électrique.The object of the invention is to simplify the production of this type of electrical appliance.

A cet effet, l'invention propose un appareil électrique comportant une première portion et une deuxième portion, la première portion et la deuxième portion étant emboîtables l'une avec l'autre, la première portion comportant un premier élément de détrompage pour empêcher l'emboîtement de la première portion avec une portion semblable à la deuxième portion mais appartenant à un autre appareil électrique, la deuxième portion comportant un deuxième élément de détrompage apparié avec le premier élément de détrompage pour empêcher l'emboîtement de la deuxième portion avec une portion semblable à la première portion mais appartenant à un autre appareil électrique, la première portion comportant un logement du premier élément de détrompage, ledit premier élément étant reçu dans ledit logement dans une position prédéterminée sélectionnée, pour que le premier élément de détrompage et le deuxième élément de détrompage soient appariés, parmi une pluralité de positions possibles correspondant chacune à une orientation angulaire distincte du premier élément par rapport à la première portion, le premier élément présentant sur une surface périphérique des creux en V, chacun adapté à coopérer avec un plein en V d'une surface périphérique du logement, le premier élément comportant en outre un premier organe de détrompage apte à coopérer avec un deuxième organe de détrompage du deuxième élément par complémentarité de forme,
caractérisé en ce que le premier élément comporte un moyeu, des bras et des arches, le moyeu présentant l'organe de détrompage, chaque arche étant convexe vers l'extérieur et étant reliée au moyeu par l'intermédiaire de deux bras, chaque creux en V ayant sa pointe située à la jonction des surfaces extérieures de deux arches adjacentes, chaque arche étant déformable et apte à fléchir élastiquement vers le moyeu dans un espace existant entre le moyeu et les deux bras la reliant au moyeu, grâce à quoi ladite position prédéterminée du premier élément de détrompage est sélectionnable à l'état assemblé de la première portion.For this purpose, the invention proposes an electrical apparatus comprising a first portion and a second portion, the first portion and the second portion being nestable with each other, the first portion comprising a first foolproofing element to prevent the first portion from nesting with a portion similar to the second portion but belonging to another electrical appliance, the second portion comprising a second foolproofing element paired with the first foolproofing element to prevent nesting the second portion with a portion similar to the first portion but belonging to another electrical apparatus, the first portion having a housing of the first keying element, said first element being received in said housing in a selected predetermined position, so that the first keying element and the second keying element are matched, among a plurality of possible positions each corresponding to a distinct angular orientation of the first element relative to the first portion, the first element having V-shaped depressions on a peripheral surface, each adapted to cooperate with a full V of a peripheral surface of the housing, the first element further comprising a first keying member adapted to cooperate with a second keying member of the second element by form complementarity,
characterized in that the first element comprises a hub, arms and arches, the hub having the polarizing member, each arch being convex outward and being connected to the hub by means of two arms, each hollow in V having its tip located at the junction of the outer surfaces of two adjacent arches, each arch being deformable and able to flex elastically towards the hub in a space existing between the hub and the two arms connecting it to the hub, whereby said predetermined position the first coding element is selectable in the assembled state of the first portion.

A l'aide d'un simple outil, tel qu'une clé coudée dont une extrémité est conformée comme le deuxième organe de détrompage, on peut modifier l'orientation angulaire des moyens de détrompage de la première portion, alors que ceux-ci sont déjà en position et assemblés avec la première portion, de façon à les apparier avec ceux de la deuxième portion.With the aid of a simple tool, such as a bent key whose one end is shaped like the second keying member, the angular orientation of the foolproofing means of the first portion can be modified, while these are already in position and assembled with the first portion, so as to match them with those of the second portion.

Ainsi, contrairement aux appareils antérieurs susmentionnés où chaque élément de détrompage est rigidement assujetti au reste de la portion à laquelle il appartient, ce qui impose de connaître dès le stade de la fabrication quelle sera la portion qui doit lui être appariée, l'invention permet de produire des premières portions indifférenciées, par exemple des embases, et de ne leur donner leur indexation qu'ultérieurement en fonction de la deuxième portion, par exemple une cartouche, qu'elles vont recevoir à emboîtement. La production en est simplifiée et il n'est pas utile de prévoir des stocks de différentes premières portions.Thus, unlike the aforementioned prior devices where each keying element is rigidly subject to the rest of the portion to which it belongs, which requires knowing from the stage of manufacture what will be the portion to be matched, the invention allows to produce first undifferentiated portions, for example bases, and to give them their indexing only later as a function of the second portion, for example a cartridge, that they will receive interlocking. The production is simplified and it is not useful to provide stocks of different first portions.

Selon des caractéristiques de mise en oeuvre particulièrement simples et commodes tant à la fabrication qu'à l'utilisation :

  • l'un desdits premier organe ou deuxième organe est un évidement et l'autre premier organe ou deuxième organe est un téton de forme complémentaire à celle de l'évidement; et en particulier
  • le premier organe de détrompage est un évidement et le deuxième organe de détrompage est un téton de forme complémentaire à l'évidement ; et/ou
  • le téton est un prisme à base triangulaire ; et/ou
  • la deuxième portion et le deuxième élément sont rigidement assujettis l'un à l'autre ; et éventuellement
  • la deuxième portion comporte un logement de deuxième élément ;
    et éventuellement
  • le deuxième élément présente une base en forme d'étoile comportant une pluralité de branches identiques, le deuxième élément étant reçu dans le logement dans une position prédéterminée sélectionnée, pour que le premier élément de détrompage et le deuxième élément de détrompage soient appariés, parmi une pluralité de positions possibles correspondant chacune à une orientation angulaire distincte du deuxième élément par rapport à la deuxième portion ; et/ou
  • l'une desdites première portion ou deuxième portion est une embase et l'autre desdites première portion et deuxième portion est une cartouche, emboîtable sur l'embase ; et en particulier
  • la première portion est une embase et la deuxième portion est une cartouche emboîtable sur l'embase ; et/ou
  • l'embase comporte une première face en contact avec une deuxième face de la cartouche lorsque la cartouche est emboîtée sur l'embase, la deuxième face présentant des broches saillant transversalement et aptes à s'insérer dans des alvéoles de la première face ; et/ou
  • l'embase comporte des moyens de fixation sur un rail ; et/ou
  • le premier élément de détrompage est en matière plastique ; et/ou
  • le deuxième élément de détrompage est en matière plastique.
According to implementation characteristics which are particularly simple and convenient both for manufacture and use:
  • one of said first member or second member is a recess and the other first member or second member is a nipple of complementary shape to that of the recess; and especially
  • the first keying member is a recess and the second keying member is a nipple of complementary shape to the recess; and or
  • the nipple is a triangular prism; and or
  • the second portion and the second member are rigidly secured to each other; and eventually
  • the second portion comprises a second element housing;
    and eventually
  • the second element has a star-shaped base having a plurality of identical branches, the second element being received in the housing in a selected predetermined position, so that the first coding element and the second coding element are matched, among a a plurality of possible positions each corresponding to a distinct angular orientation of the second element relative to the second portion; and or
  • one of said first portion or second portion is a base and the other of said first portion and second portion is a cartridge, nestable on the base; and especially
  • the first portion is a base and the second portion is a cartridge nestable on the base; and or
  • the base comprises a first face in contact with a second face of the cartridge when the cartridge is fitted on the base, the second face having pins protruding transversely and adapted to be inserted in the cells of the first face; and or
  • the base comprises fixing means on a rail; and or
  • the first coding element is made of plastic; and or
  • the second keying element is plastic.

Les caractéristiques et avantages de l'invention ressortiront de la description qui suit, donnée à titre d'exemple préféré, mais non limitatif, en référence aux dessins annexés, sur lesquels :

  • la figure 1 est une vue en perspective d'un appareil électrique selon l'invention comportant une embase et une cartouche emboîtée sur l'embase ;
  • la figure 2 est une vue en perspective avec arrachement partiel de l'embase de la figure 1, l'arrachement permettant de voir le premier élément de détrompage et son logement ;
  • la figure 3 est une vue en perspective avec arrachement partiel de la cartouche de la figure 1, l'arrachement permettant de voir le deuxième élément de détrompage et son logement.
  • Les figures 4 et 5 sont des vues agrandies des détails IV et V respectivement des figures 2 et 3 ;
  • la figure 6 est une vue en perspective de l'élément de détrompage de l'embase ;
  • la figure 7 est une vue en perspective de l'élément de détrompage de la cartouche ; et
  • la figure 8 est une vue en perspective de l'extrémité de l'outil permettant de modifier l'orientation angulaire de l'élément de détrompage de l'embase.
The features and advantages of the invention will emerge from the description which follows, given by way of a preferred but nonlimiting example, with reference to the appended drawings, in which:
  • the figure 1 is a perspective view of an electrical apparatus according to the invention comprising a base and a cartridge fitted on the base;
  • the figure 2 is a perspective view partially broken away of the base of the figure 1 , tearing to see the first keying element and its housing;
  • the figure 3 is a perspective view with partial tearing of the cartridge of the figure 1 , tearing to see the second keying element and its housing.
  • The Figures 4 and 5 are enlarged views of details IV and V respectively of figures 2 and 3 ;
  • the figure 6 is a perspective view of the keying element of the base;
  • the figure 7 is a perspective view of the foolproofing element of the cartridge; and
  • the figure 8 is a perspective view of the end of the tool for changing the angular orientation of the keying element of the base.

L'appareil électrique illustré sur la figure 1 est un parafoudre comportant une embase 1 et une cartouche 2.The electrical device shown on the figure 1 is a surge arrester comprising a base 1 and a cartridge 2.

L'embase 1 comporte deux parois principales 3 chacune en U reliées entre elles par des parois latérales. Elle comporte un boîtier formé par deux coquilles en matière plastique moulée 4 et 5 jointes l'une à l'autre suivant le plan de symétrie parallèle aux parois principales 3.The base 1 comprises two main walls 3 each U connected to each other by side walls. It comprises a housing formed by two molded plastic shells 4 and 5 joined to each other along the plane of symmetry parallel to the main walls 3.

Chaque paroi principale 3 comporte un premier tronçon rectangulaire 6 présentant deux extrémités à partir desquelles s'étendent transversalement au premier tronçon 6 deux tronçons rectangulaires 7, 8.Each main wall 3 comprises a first rectangular section 6 having two ends from which extend transversely to the first section 6 two rectangular sections 7, 8.

Chaque paroi 3 en forme de U présente un bord intérieur 9 également en forme générale de U. Le long du bord du premier tronçon 6, le bord 9 présente un décrochement 10 vers l'extérieur du premier tronçon 6. La hauteur de décrochement est très inférieure à la distance entre deux bords opposés du premier tronçon 6.Each U-shaped wall 3 has an inner edge 9 also in the general shape of U. Along the edge of the first section 6, the edge 9 has a recess 10 towards the outside of the first section 6. The height of offset is very less than the distance between two opposite edges of the first section 6.

Chaque partie extrême du bord 9 présente un décrochement 11 vers l'intérieur de la paroi 3. Les deux décrochements 11 ne sont pas situés à la même distance du reste du bord 9.Each end portion of the edge 9 has a recess 11 inwardly of the wall 3. The two recesses 11 are not located at the same distance from the rest of the edge 9.

Chaque paroi 3 présente en outre un bord extérieur 12 en forme de U et deux retours 13. Chaque retour 13 relie une extrémité du bord 9 à une extrémité du bord 12 et se trouve à une extrémité d'un tronçon 7, 8.Each wall 3 further has an outer edge 12 in the shape of a U and two returns 13. Each return 13 connects one end of the edge 9 to one end of the edge 12 and is at one end of a section 7, 8.

Deux parois latérales 14 s'étendent chacune entre deux retours 13 opposés. Chaque paroi 14 est rectangulaire et comporte en son centre un trou circulaire traversant 15.Two side walls 14 each extend between two opposite returns 13. Each wall 14 is rectangular and comprises at its center a circular through hole 15.

Une paroi latérale 16 à profil en U, s'étend entre les deux bords 12. La paroi 16 comprend un fond et deux ailes 17.A U-shaped side wall 16 extends between the two edges 12. The wall 16 comprises a bottom and two wings 17.

Le fond comporte des moyens de fixation conventionnels 18 de l'embase 1 sur un rail DIN (non représenté) de tableau électrique.The bottom comprises conventional fixing means 18 of the base 1 on a DIN rail (not shown) of the electrical panel.

Chaque aile 17 est pourvue vers le fond d'une ouverture sensiblement rectangulaire 19 et vers la paroi 14 d'une fente 20 également rectangulaire, la fente 20 s'étendant selon une direction principale parallèlement au plan de la paroi 14.Each wing 17 is provided towards the bottom of a substantially rectangular opening 19 and towards the wall 14 of a slot 20 which is also rectangular, the slot 20 extending in a principal direction parallel to the plane of the wall 14.

Une deuxième paroi latérale 21 à profil en U s'étend entre les parois principales 3. Elle comprend un fond 22 et deux ailes 23. La section de la paroi 21 suit globalement le tracé du bord 9. Chaque aile 23 s'étend transversalement à la paroi 14 le long du décrochement 11 jusqu'au fond 22. Le fond 22 est transversal aux ailes 23 et s'étend sous le bord 9 et le décrochement 10 de sorte que chaque paroi 3 déborde globalement dans l'intérieur du U formé par la paroi 21.A second U-shaped side wall 21 extends between the main walls 3. It comprises a bottom 22 and two flanges 23. The section of the wall 21 generally follows the outline of the edge 9. Each flange 23 extends transversely to the wall 14 along the recess 11 to the bottom 22. The bottom 22 is transverse to the flanges 23 and extends under the edge 9 and the recess 10 so that each wall 3 protrudes generally in the interior of the U formed by the wall 21.

Le fond 22 comporte un trou circulaire 25 situé légèrement à l'écart du centre du fond 22. Le fond 22 comporte une zone globalement carrée légèrement surélevée s'étendant sur toute la largeur du fond 22. Le trou 25 se situe au centre de cette zone surélevée.The bottom 22 has a circular hole 25 located slightly away from the center of the bottom 22. The bottom 22 has a generally square slightly elevated zone extending over the entire width of the bottom 22. The hole 25 is located in the center of this raised area.

De part et d'autre et à l'écart du trou 25, se trouvent deux fentes rectangulaires 24 formant chacune le débouché d'une alvéole. Chaque fente 24 s'étend sur presque toute la largeur du fond 22.On both sides and away from the hole 25, there are two rectangular slots 24 each forming the outlet of a cell. Each slot 24 extends over almost the entire width of the bottom 22.

Dans l'espace intérieur au boîtier formé par les deux coquilles 4 et 5, en regard de chaque ouverture 19 se trouve une borne à cage 26 commandée par une vis dont la tête se trouve au niveau de la fente 20, chaque tête de vis étant accessible, pour sa commande, par le trou 15. Chacune des deux alvéoles débouchant par une fente 24 est reliée électriquement à une borne 26 respective.In the interior space of the housing formed by the two shells 4 and 5, opposite each opening 19 is a cage terminal 26 controlled by a screw whose head is at the slot 20, each screw head being accessible, for its control, through the hole 15. Each of the two cells opening through a slot 24 is electrically connected to a respective terminal 26.

Comme on le voit plus particulièrement sur la figure 4, l'embase 1 comporte un logement destiné à un élément de détrompage 27 décrit dans la suite.As we see more particularly on the figure 4 , the base 1 comprises a housing for a keying element 27 described below.

Le logement est situé sous la zone surélevée du fond 22 et présente une hauteur sensiblement égale à l'épaisseur de la paroi de fond 22.The housing is located under the raised area of the bottom 22 and has a height substantially equal to the thickness of the bottom wall 22.

Le fond du logement (non représenté) est ouvert et comporte deux traverses permettant de soutenir l'élément 27 lorsqu'il est en position dans le logement.The bottom of the housing (not shown) is open and has two cross members to support the element 27 when in position in the housing.

Entre la face intérieure de la paroi de fond 22 et les traverses formant fond du logement, s'étend une paroi latérale présentant un creux en forme d'étoile à huit branches. Les branches de l'étoile sont identiques. Elles sont conformées chacune comme le coin d'un carré. Deux branches successives sont séparées par un plein en V et le logement présente des pointes 28 à chaque jonction entre deux branches.Between the inner face of the bottom wall 22 and the cross-members forming the bottom of the housing, extends a side wall having a star-shaped hollow with eight branches. The branches of the star are identical. They are each shaped like the corner of a square. Two successive branches are separated by a full V and the housing has spikes 28 at each junction between two branches.

En référence aux figures 2, 4, 6, on décrit maintenant l'élément de détrompage 27 de l'embase 1.With reference to figures 2 , 4 , 6 the keying element 27 of the base 1 is now described.

L'élément 27 est en matière plastique moulée. Il est conformé comme un pignon. Son épaisseur correspond à celle du logement. L'élément 27 comporte un moyeu 29, huit bras 30 et huit arches 31.The element 27 is made of molded plastic. It is shaped like a pinion. Its thickness corresponds to that of the housing. The element 27 comprises a hub 29, eight arms 30 and eight arches 31.

Le moyeu 29 est globalement circulaire. Il présente en son centre un évidement 32 à section triangulaire.The hub 29 is generally circular. It has in its center a recess 32 with triangular section.

A partir de la périphérie du moyeu, s'étendent radialement les bras 30, lesquels sont répartis régulièrement sur la circonférence, leur longueur étant petite devant le diamètre du moyeu.From the periphery of the hub, radially extend the arms 30, which are regularly distributed on the circumference, their length being small in front of the diameter of the hub.

Chaque arche 31 s'étend entre deux bras successifs, chaque bras 30 s'étendant entre le moyeu 29 et la jonction entre deux arches consécutives. Les arches 31 s'élèvent à une hauteur inférieure à la hauteur des bras 30. Les arches 31 ont une épaisseur constante d'une extrémité à l'autre.Each arch 31 extends between two successive arms, each arm 30 extending between the hub 29 and the junction between two consecutive arches. The arches 31 rise to a height less than the height of the arms 30. The arches 31 have a constant thickness from one end to the other.

Chaque ensemble formé d'une arche 31 et des deux bras 30 successifs entre lesquels cette arche s'étend délimite avec la périphérie du moyeu 29 une ouverture 33.Each assembly formed of an arch 31 and two successive arms 30 between which this arch extends defines with the periphery of the hub 29 an opening 33.

L'élément 27 est placé dans le logement, chaque pointe 28 du logement étant en contact avec l'une des arêtes 34 situées, sur la périphérie de l'élément 27, à la jonction entre deux arches successives.The element 27 is placed in the housing, each point 28 of the housing being in contact with one of the edges 34 located on the periphery of the element 27, at the junction between two successive arches.

On observera que chaque arête 34 correspond à la pointe d'un creux en V dans lequel est reçu un plein également en V du logement.It will be observed that each edge 34 corresponds to the tip of a hollow V in which is received a full V also housing.

Chaque arche 31 est placée dans une branche d'étoile du logement.Each arch 31 is placed in a star branch of the housing.

Du fait que l'évidement 32 est l'image de lui-même par rotation de 120° et que le reste de l'élément 27 est l'image de lui-même par rotation de 45°, les huit positions possibles de l'élément 27 dans le logement correspondent à huit orientations angulaires distinctes pour l'évidement 32.Because the recess 32 is the image of itself by 120 ° rotation and the remainder of the element 27 is the image of itself by rotation of 45 °, the eight possible positions of the element 27 in the housing correspond to eight distinct angular orientations for the recess 32.

L'élément 27 étant placé dans le logement, les deux coquilles 4, 5 sont assemblées de façon indémontable, par exemple par soudage à ultra-sons. Le trou 25 ne laisse alors apparaître de l'élément de détrompage 27 que le moyeu 29 et l'évidement 32.The element 27 being placed in the housing, the two shells 4, 5 are assembled releasably, for example by ultrasonic welding. The hole 25 then leaves the coding element 27 only the hub 29 and the recess 32.

On décrit maintenant la cartouche 2, notamment en référence à la figure 3.Cartridge 2 is now described, in particular with reference to the figure 3 .

La cartouche 2 est globalement parallélépipédique. Elle comporte deux parois principales 40 entre lesquelles s'étendent quatre parois latérales de même largeur que celle du fond 22 de l'embase 2.The cartridge 2 is generally parallelepipedic. It comprises two main walls 40 between which extend four side walls of the same width as that of the bottom 22 of the base 2.

Les parois principales 40 sont globalement carrées et identiques. La largeur du côté du carré correspond à la longueur du fond 22. Chaque paroi 40 comporte quatre côtés 41, 42, 43, 44.The main walls 40 are generally square and identical. The width of the side of the square corresponds to the length of the bottom 22. Each wall 40 has four sides 41, 42, 43, 44.

La partie 45 de la cartouche 2 que l'on voit en bas sur la figure 3 est destinée à être comprise dans le volume de l'embase 1 prévu à cet effet tandis que la partie restante 46 de la cartouche 2 est destinée à saillir au dessus de l'embase 1.The part 45 of the cartridge 2 that we see below on the figure 3 is intended to be included in the volume of the base 1 provided for this purpose while the remaining portion 46 of the cartridge 2 is intended to project above the base 1.

La partie 45 comporte le côté 41 et une partie 42a, 44a des deux côtés adjacents. La partie 46 comporte le côté 43 opposé au côté 41 et une partie 42b, 44b des deux côtés adjacents.The portion 45 has the side 41 and a portion 42a, 44a of the two adjacent sides. The portion 46 has the side 43 opposite the side 41 and a portion 42b, 44b of the two adjacent sides.

Dans la partie 45, chaque paroi principale 40, le long de ses côtés 41, 42a, 44a, présente un décrochement 47 de paroi correspondant à l'épaisseur de la paroi 3. Le tracé de ce décrochement 47 correspond au tracé du bord 9 et notamment les décrochements 10, 11.In part 45, each main wall 40, along its sides 41, 42a, 44a, has a recess 47 of wall corresponding to the thickness of the wall 3. The outline of this recess 47 corresponds to the outline of the edge 9 and in particular the recesses 10, 11.

Ainsi, lorsque la cartouche 2 est emboîtée dans l'embase 1, chaque face extérieure de la paroi 40 est située dans le même plan que la face extérieure d'une paroi 3.Thus, when the cartridge 2 is nested in the base 1, each outer face of the wall 40 is located in the same plane as the outer face of a wall 3.

Dans la partie 46, le côté 43 est légèrement plus petit que le côté 41. Et les côtés 42b, 44b sont placés parallèlement mais en retrait par rapport aux côtés 42a, 44a.In part 46, the side 43 is slightly smaller than the side 41. And the sides 42b, 44b are placed parallel but recessed with respect to the sides 42a, 44a.

L'une des parois 40 présente des encoches le long des bords 42b, 44b. Ces encoches correspondent à des rainures faites dans les parois latérales.One of the walls 40 has notches along the edges 42b, 44b. These notches correspond to grooves made in the side walls.

Entre les bords 43 des parois principales 40 s'étend une paroi latérale 50. La paroi 50 comprend un trou oblong 51 et une platine 52 transparente sur l'une de ses extrémités.Between the edges 43 of the main walls 40 extends a side wall 50. The wall 50 comprises an oblong hole 51 and a plate 52 transparent on one of its ends.

Le trou oblong 51 s'ouvre sur une portion d'une languette (non visible sur les dessins) mobile entre plusieurs positions. La position de la languette dépend de l'état de la cartouche. En fonctionnement normal, le trou s'ouvre sur une portion verte. La platine 52 est pourvue de moyens formant glissière afin d'être dégagée et d'ouvrir l'accès à une zone d'inscription.The oblong hole 51 opens on a portion of a tongue (not visible in the drawings) movable between several positions. The position of the tab depends on the condition of the cartridge. In normal operation, the hole opens on a green portion. The plate 52 is provided with means forming a slideway to be cleared and to open access to a registration area.

Les portions de parois latérales rejoignant les bords 42b et les bords 44b comportent des rainures 53 s'étendant à partir d'une paroi 40 mais non jusqu'à la paroi 40 opposée.The side wall portions joining the edges 42b and the edges 44b have grooves 53 extending from a wall 40 but not to the opposite wall 40.

La portion de paroi latérale rejoignant les parties extrêmes des bords 44a des deux parois 40 porte deux nervures 54 de base triangulaire s'étendant sur toute la largeur de la paroi latérale. Les nervures 54 forment des moyens d'encliquetage de la cartouche 2 sur l'embase 1 à l'aide de moyens d'encliquetage complémentaires sur l'embase 1 (non représentés).The side wall portion joining the end portions of the edges 44a of the two walls 40 carries two ribs 54 of triangular base extending over the entire width of the side wall. The ribs 54 form latching means of the cartridge 2 on the base 1 by means of complementary latching means on the base 1 (not shown).

La cartouche 2 comporte une quatrième paroi latérale opposée à la paroi latérale 50. La face externe de la quatrième paroi est destinée à venir en contact avec la face de fond 22 de l'embase 1.The cartridge 2 has a fourth lateral wall opposite the side wall 50. The outer face of the fourth wall is intended to come into contact with the bottom face 22 of the base 1.

La quatrième paroi comporte une ouverture 57 située légèrement à l'écart de son centre. L'ouverture 57 est de forme oblongue, avec deux côtés parallèles (visibles sur les figures 3 et 5) et deux côtés en arc de cercle (non visibles sur les dessins).The fourth wall has an opening 57 located slightly away from its center. The opening 57 is of oblong shape, with two parallel sides (visible on the Figures 3 and 5 ) and two sides in an arc (not visible in the drawings).

La quatrième paroi comporte une zone globalement carrée légèrement décalée vers l'intérieur de la cartouche 2 s'étendant sur toute la largeur de la quatrième paroi. L'ouverture 57 se situe au centre de cette zone.The fourth wall comprises a generally square zone slightly offset towards the inside of the cartridge 2 extending over the entire width of the fourth wall. The opening 57 is in the center of this area.

De part et d'autre et à l'écart de l'ouverture 57, se trouvent deux broches 58 rectangulaires s'étendant sur presque toute la largeur de la quatrième paroi.On either side and away from the opening 57 are two rectangular pins 58 extending over most of the width of the fourth wall.

Entre une extrémité de la quatrième paroi et la broche 58 située de ce côté s'étend en saillie un pion 56 auquel correspond à un trou (non représenté) dans le fond 22.Between one end of the fourth wall and the pin 58 located on this side protrudes a pin 56 which corresponds to a hole (not shown) in the bottom 22.

Le pion 56 et le trou forment des moyens de sécurité permettant de ne pas utiliser une cartouche 2 hors de fonctionnement.The pin 56 and the hole form security means for not using a cartridge 2 out of operation.

Le boîtier de la cartouche 2 est en matière plastique moulée. Il est formé par une coquille plate correspondant pour l'essentiel à la paroi 40 visible sur les dessins et par une coquille correspondant à l'autre paroi 40 et aux parois latérales.The casing of the cartridge 2 is made of molded plastic. It is formed by a flat shell corresponding essentially to the wall 40 visible in the drawings and by a shell corresponding to the other wall 40 and the side walls.

On ne décrira pas en détail l'intérieur de la cartouche 2. On notera simplement que celle-ci comporte un composant ayant pour but de limiter rapidement les fortes tensions apparaissant à ses bornes. Il peut s'agir d'un éclateur, d'une varistance ou encore d'une diode d'écrêtage. Les bornes du composant sont chacune reliée à une broche 58 respective. La cartouche 2 comporte également un compartiment pour la languette décrite plus haut et pour un organe de détection de la fin du fonctionnement normal du composant.The inside of the cartridge 2 will not be described in detail. It will simply be noted that this latter comprises a component whose purpose is to rapidly limit the high voltages appearing at its terminals. It can be a spark gap, a varistor or a clipping diode. The terminals of the component are each connected to a respective pin 58. The cartridge 2 also comprises a compartment for the tongue described above and for a detection member of the end of the normal operation of the component.

Comme on le voit plus particulièrement sur la figure 5, la cartouche 2 comporte un logement destiné à un élément de détrompage 60 décrit dans la suite.As we see more particularly on the figure 5 , the cartridge 2 comprises a housing for a keying element 60 described below.

Le logement est situé au niveau de la zone carrée décalée présentant l'ouverture 57.The housing is located at the square zone offset with the opening 57.

Ce logement comporte, à l'intérieur de la cartouche 2, un espace 75 de réception d'une base 61 de l'élément de détrompage 60 de la cartouche 2.This housing comprises, inside the cartridge 2, a space 75 for receiving a base 61 of the coding element 60 of the cartridge 2.

L'espace 75 est délimité latéralement par une surface 76 globalement en forme de U présentant deux portions parallèles réunies par une portion en demi-étoile identique à une moitié de l'étoile déjà décrite pour l'embase 1. La demi-étoile comporte trois branches complètes et deux demi-branches chacune située à une jonction respective avec l'une des portions parallèles, de sorte que la demi-étoile présente quatre pointes.The space 75 is delimited laterally by a generally U-shaped surface 76 having two parallel portions joined by a half-star portion identical to one half of the star already described for the base 1. The half-star comprises three complete branches and two half-branches each located at a respective junction with one of the parallel portions, so that the half-star has four points.

Les portions parallèles de la surface 76 sont parallèles aux côtés parallèles de l'ouverture 57 tandis que la portion en demi-étoile est globalement centrée sur une ligne parallèle à la portion en arc de cercle de l'ouverture 57.The parallel portions of the surface 76 are parallel to the parallel sides of the opening 57 while the half-star portion is generally centered on a line parallel to the arcuate portion of the opening 57.

Entre la surface 76 et l'ouverture 57, l'espace 75 est délimité par une surface plate transversale à la surface 76.Between the surface 76 and the opening 57, the space 75 is delimited by a flat surface transverse to the surface 76.

En référence aux figures 3, 5, 7, on décrit maintenant l'élément de détrompage 60 de la cartouche 2.With reference to Figures 3, 5 , 7 , the coding element 60 of the cartridge 2 is now described.

Comme indiqué ci-dessus, l'élément 60 comporte une base 61, laquelle est en étoile à huit branches de même forme que celle déjà décrite pour l'embase 1. L'épaisseur de la base 61 est équivalente à celle de la surface 76. Chaque jonction entre deux branches consécutives présente, sur la surface périphérique, une arête 62.As indicated above, the element 60 comprises a base 61, which is a star with eight branches of the same shape as that already described for the base 1. The thickness of the base 61 is equivalent to that of the surface 76 Each junction between two consecutive branches presents, on the peripheral surface, an edge 62.

De la base 61 saille un tourillon formant entretoise entre la base 61 et une platine circulaire 63, le tourillon ayant un diamètre correspondant à celui de la partie en arc de cercle de l'ouverture 57, ce diamètre étant plus petit que celui de la platine 63, laquelle a un diamètre correspondant sensiblement à celui du cercle qui passe par les arêtes 62.From the base 61 projects a trunnion forming a spacer between the base 61 and a circular plate 63, the trunnion having a diameter corresponding to that of the arcuate part of the opening 57, this diameter being smaller than that of the plate 63, which has a diameter substantially corresponding to that of the circle which passes through the edges 62.

De la platine 63 saille un organe de détrompage 64. L'organe 64 est un téton présentant la forme d'un prisme triangulaire plein centré sur la platine 63. La hauteur de l'organe 64 est très supérieure à la hauteur totale de la base 61, du tourillon et de la platine 63.The plate 63 protrudes a keying member 64. The member 64 is a stud having the shape of a solid triangular prism centered on the plate 63. The height of the member 64 is much greater than the total height of the base 61, journal and plate 63.

L'extrémité libre de l'organe 64 est donc triangulaire. Les trois bords présentent des angles abattus. L'extrémité comporte en outre une nervure 65 joignant l'un des sommets du triangle et le milieu du bord opposé.The free end of the member 64 is triangular. The three edges have sloped angles. The end further comprises a rib 65 joining one of the vertices of the triangle and the middle of the opposite edge.

L'élément 60 est placé dans le logement 75, les quatre pointes du logement étant en contact avec quatre des huit arêtes 62 de l'élément 60, le tourillon étant disposé dans l'ouverture 57.The element 60 is placed in the housing 75, the four points of the housing being in contact with four of the eight edges 62 of the element 60, the pin being disposed in the opening 57.

Comme pour l'élément 27, l'élément 60 peut prendre huit orientations angulaires différentes.As for the element 27, the element 60 can take eight different angular orientations.

L'élément 60 est maintenu dans une position déterminée par la coquille comportant la paroi 40 visible sur les dessins. Cette coquille comporte une patte transversale (non représentée) saillant le long de son bord 41 et formant l'un des côtés en arc de cercle de l'ouverture 57.The element 60 is held in a position determined by the shell having the wall 40 visible in the drawings. This shell comprises a transverse tab (not shown) projecting along its edge 41 and forming one of the arcuate sides of the opening 57.

Plus précisément, l'élément 60 est d'abord mis en place avec l'orientation angulaire requise dans la coquille fournissant les parois latérales de la cartouche 2, cette mise en place étant possible du fait que la partie de l'ouverture 57 appartenant à cette coquille est ouverte à l'endroit occupé ensuite par la patte de l'autre coquille.More specifically, the element 60 is first put in place with the required angular orientation in the shell providing the side walls of the cartridge 2, this setting up being possible because the part of the opening 57 belonging to the this shell is opened at the place occupied next by the paw of the other shell.

La cartouche 2 est assemblée de façon indémontable par exemple par soudage à ultra-sons de deux coquilles.The cartridge 2 is assembled releasably, for example by ultrasonic welding of two shells.

L'élément 60 est alors assujetti rigidement au reste de cette cartouche 2 assemblée.The element 60 is then rigidly secured to the rest of this assembled cartridge 2.

En référence à la figure 8, on décrit maintenant l'outil 70 d'indexation permettant, si nécessaire, de changer l'orientation angulaire de l'élément 27 par rapport au reste de l'embase 1.With reference to the figure 8 the indexing tool 70 is now described, allowing, if necessary, changing the angular orientation of the element 27 relative to the rest of the base 1.

L'outil 70 est une clé coudée dont l'extrémité représentée est un prisme triangulaire 71. Les dimensions du prisme 71 sont les mêmes que celles de l'organe 64 décrit précédemment. L'outil 70 est adapté à passer au travers de l'ouverture triangulaire de l'élément de détrompage 27.The tool 70 is a bent key whose end is a triangular prism 71. The dimensions of the prism 71 are the same as those of the organ 64 described above. The tool 70 is adapted to pass through the triangular opening of the foolproofing element 27.

L'orientation angulaire de l'élément 60, qui est définitive après assemblage de la cartouche 2, a été sélectionnée suivant la capacité de la cartouche 2. L'orientation angulaire de l'élément 27 est en revanche modifiable après assemblage.The angular orientation of the element 60, which is final after assembly of the cartridge 2, has been selected according to the capacity of the cartridge 2. The angular orientation of the element 27 is however modifiable after assembly.

Pour pouvoir emboîter la cartouche 2 sur l'embase 1, l'orientation de l'élément 27 doit être en accord avec la seule orientation angulaire qui convient à l'élément 60.To be able to fit the cartridge 2 on the base 1, the orientation of the element 27 must be in agreement with the only appropriate angular orientation for the element 60.

On utilise donc l'outil 70. On fait pénétrer l'extrémité 71 de l'outil dans l'évidement en triangle de l'élément 27. En faisant tourner la clé dans l'évidement, les arches 31 se déforment en fléchissant élastiquement chacune dans un trou 33, l'élément 27 tournant sous l'effet de la rotation de la clé jusqu'à ce que chaque pointe 28 se trouve en contact avec l'arête 34 consécutive à l'arête initiale. L'élément 27 a alors pivoté d'un huitième de tour.The tool 70 is thus used. The end 71 of the tool is penetrated into the triangular recess of the element 27. By rotating the key in the recess, the arches 31 deform by flexing each elastically. in a hole 33, the element 27 rotating under the effect of the rotation of the key until each point 28 is in contact with the edge 34 consecutive to the initial edge. Element 27 then rotated one-eighth of a turn.

L'opération est poursuivie s'il y a lieu jusqu'à l'orientation angulaire voulue.The operation is continued if necessary until the desired angular orientation.

Alors, les deux éléments de détrompage sont chacun dans des positions correspondantes, la cartouche 2 peut être emboîtée sur l'embase 1 : l'organe 64 pénètre dans l'évidement 32, les broches 58 s'insèrent dans les alvéoles 80 et les moyens de sécurité 56 s'engagent dans le trou correspondant de l'embase 1.Then, the two keying elements are each in corresponding positions, the cartridge 2 can be fitted on the base 1: the member 64 enters the recess 32, the pins 58 fit into the cells 80 and the means 56 engage in the corresponding hole of the base 1.

Lors de la production de la cartouche 2, on choisit avantageusement pour l'élément de détrompage 27 la position correspondant à la cartouche la plus courante, de sorte qu'il n'est besoin de modifier l'orientation angulaire de l'élément 27 que si l'embase 1 doit être appariée avec une autre cartouche.During the production of the cartridge 2, the coding element 27 is advantageously chosen for the position corresponding to the most common cartridge, so that it is not necessary to modify the angular orientation of the element 27 that if the base 1 must be matched with another cartridge.

Dans des variantes non représentées, la forme extérieure de l'embase 1 et de la cartouche 2, leurs dimensions relatives et leur géométrie sont différentes ; les éléments de détrompage 27, 60 présentent d'autres formes et/ou dimensions, notamment, d'autres formes d'étoile, d'évidement, ou encore une absence de nervure sur l'organe 63 ; et/ou le prisme est prévu sur l'élément 27 et l'ouverture sur l'élément 60, voire d'autres formes complémentaires sont prévues.In variants not shown, the outer shape of the base 1 and the cartridge 2, their relative dimensions and their geometry are different; the polarizing elements 27, 60 have other shapes and / or dimensions, in particular, other star shapes, recess, or an absence of rib on the member 63; and / or the prism is provided on the element 27 and the opening on the element 60, or other complementary shapes are provided.

Dans d'autres variantes non représentées, l'élément de détrompage 60 et la cartouche 2 sont monobloc ; et/ou l'élément de détrompage dont l'orientation angulaire peut être modifiée est l'élément de la cartouche 2 plutôt que celui de l'embase 1, voire l'orientation angulaire de l'élément de détrompage de chacun d'eux peut être modifiée.In other variants not shown, the keying element 60 and the cartridge 2 are monobloc; and / or the coding element whose angular orientation can be modified is the element of the cartridge 2 rather than that of the base 1, or the angular orientation of the foolproofing element of each of them can to be modified.

Dans encore d'autres variantes non représentées, l'appareil électrique à embase et à cartouche emboîtables est un appareil autre qu'un parafoudre ; et/ou les deux portions emboîtables de l'appareil sont autres qu'une embase et une cartouche.In still other variants not shown, the electrical device with flanged cartridge and cartridge is a device other than a surge arrester; and / or the two nestable portions of the apparatus are other than a base and a cartridge.

De nombreuses autres variantes sont possibles en fonction des circonstances, et on rappelle à cet égard que l'invention revendiquée ne se limite pas aux exemples décrits et représentés.Many other variants are possible depending on the circumstances, and it is recalled in this regard that the claimed invention is not limited to the examples described and shown.

Claims (13)

  1. An electrical device comprising a first portion (1) and a second portion (2), the first portion (1) and the second portion (2) being capable of being fitted one with the other; the first portion (1) comprising a first key coding element (27) to prevent fitting the first portion (1) with a similar portion of the second portion (2) but belonging to another electrical device;
    the second portion (2) comprising a second key coding element (60) matched with the first key coding element (27) to prevent the second portion (2) from being fitted together with a similar portion of the first portion (1) but belonging to another electrical device;
    the first portion (1) comprising a housing for the first key coding element (27), said first element (27) being received in said housing in a selected predetermined position, in which the first key coding element (27) and the second key coding element (60) are matched, from a plurality of possible positions each corresponding to a distinct angular orientation of the first element (27) with respect to the first portion (1);
    the first element (27) having V-shaped valleys on a peripheral surface, each adapted to cooperate with a V-shaped solid portion on a peripheral surface of the recess;
    the first element (27) further comprising a first key coding means (32) which can cooperate with a second key coding means (64) of the second element (60) by means of complementary shaping;
    characterized in that the first element (27) comprises a hub (29), arms (30) and arches (31), the hub (29) having the key coding means (32), each arch (31) being outwardly convex and being connected to the hub (29) via two arms (30), each V-shaped valley having its point located at the junction of the outer surfaces of two adjacent arches (31), each arch (31) being deformable and capable of flexing elastically towards the hub (29) into a space (33) existing between the hub (29) and the two arms (30) connecting it to the hub (29), by means of which said predetermined position of the first key coding element (27) can be selected when assembled in the first portion (1).
  2. A device according to claim 1, characterized in that one of said first means or second means is a recess (32) and the other of the first means or second means is a dog (64) with a shape which is complementary to that of the recess (32).
  3. A device according to claim 1 or claim 2, characterized in that the first key coding means is a recess (32) and the second key coding means is a dog (64) with a shape which is complementary to that of the recess (32).
  4. A device according to claim 2 or claim 3, characterized in that the dog (64) is a prism with a triangular base.
  5. A device according to one of claims 1 to 4, characterized in that the second portion (2) and the second element (60) are rigidly secured to each other.
  6. A device according to claim 5, characterized in that the second portion (2) comprises a recess for the second element (60).
  7. A device according to claim 6, characterized in that the second element (60) has a star-shaped base comprising a plurality of identical branches, the second element (60) being received in the recess in a predetermined selected position, so that the first key coding element (27) and the second key coding element (60) are matched, from a plurality of possible positions each corresponding to a distinct angular orientation of the second element (60) with respect to the second portion (2).
  8. A device according to one of claims 1 to 7, characterized in that one of said first portion (1) or second portion (2) is a base and the other of said first portion (1) and second portion (2) is a cartridge which can be fitted on the base.
  9. A device according to claim 8, characterized in that the first portion (1) is a base and the second portion (2) is a cartridge that can be fitted on the base.
  10. A device according to claim 8 or claim 9, characterized in that the base (1) comprises a first face (22) in contact with a second face of the cartridge (2) when the cartridge (2) is fitted on the base (1), the second face having transversely projecting pins (58) which can be inserted into sockets in the first face (22).
  11. A device according to one of claims 8 to 10, characterized in that the base (1) comprises means (18) for fixing to a rail.
  12. A device according to one of claims 1 to 11, characterized in that the first key coding element (27) is formed from a plastics material.
  13. A device according to one of claims 1 to 12, characterized in that the second key coding element (60) is formed from plastics material.
EP04292914A 2003-12-10 2004-12-08 Electrical device having two coupling parts with keying means Not-in-force EP1542321B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04292914T PL1542321T3 (en) 2003-12-10 2004-12-08 Electrical device having two coupling parts with keying means

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0314497A FR2863818B1 (en) 2003-12-10 2003-12-10 ELECTRICAL APPARATUS WITH TWO ACCURATE PORTIONS COMPRISING DETROMPING MEANS
FR0314497 2003-12-10

Publications (2)

Publication Number Publication Date
EP1542321A1 EP1542321A1 (en) 2005-06-15
EP1542321B1 true EP1542321B1 (en) 2011-12-07

Family

ID=34508634

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04292914A Not-in-force EP1542321B1 (en) 2003-12-10 2004-12-08 Electrical device having two coupling parts with keying means

Country Status (4)

Country Link
EP (1) EP1542321B1 (en)
AT (1) ATE536649T1 (en)
FR (1) FR2863818B1 (en)
PL (1) PL1542321T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020209188A1 (en) 2020-07-22 2022-01-27 Yamaichi Electronics Deutschland Gmbh Connector, in particular a mini-coax automotive connector, for connecting to a compatible connector device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1066672A (en) * 1964-04-16 1967-04-26 Northrop Corp A match-determining key device for mating electrical components
US4159862A (en) * 1977-12-12 1979-07-03 Fabri-Tek Incorporated Removable female polarizing guide for electrical connectors
US6302745B1 (en) * 1999-04-14 2001-10-16 The Whitaker Corporation Keying system for electrical connectors

Also Published As

Publication number Publication date
ATE536649T1 (en) 2011-12-15
EP1542321A1 (en) 2005-06-15
PL1542321T3 (en) 2012-04-30
FR2863818B1 (en) 2006-03-03
FR2863818A1 (en) 2005-06-17

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