EP3709445A1 - Electrical connector intended for an electrical appliance - Google Patents
Electrical connector intended for an electrical appliance Download PDFInfo
- Publication number
- EP3709445A1 EP3709445A1 EP20162893.0A EP20162893A EP3709445A1 EP 3709445 A1 EP3709445 A1 EP 3709445A1 EP 20162893 A EP20162893 A EP 20162893A EP 3709445 A1 EP3709445 A1 EP 3709445A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connection device
- bearing surface
- finger
- elastic tab
- connection
- 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.)
- Withdrawn
Links
- 210000004907 gland Anatomy 0.000 claims description 4
- 208000031968 Cadaver Diseases 0.000 description 6
- 239000004020 conductor Substances 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000005405 multipole Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- 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
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
- H01R13/506—Bases; Cases composed of different pieces assembled by snap action of the parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
- H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
- H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
- H01R4/4821—Single-blade spring
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- 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
- H01R13/73—Means for mounting coupling parts to apparatus or structures, e.g. to a wall
- H01R13/74—Means for mounting coupling parts in openings of a panel
- H01R13/746—Means for mounting coupling parts in openings of a panel using a screw ring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
- H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
- H01R4/4833—Sliding arrangements, e.g. sliding button
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
- H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
- H01R4/4837—Single arrangement activating multiple springs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
- H01R4/484—Spring housing details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
- H01R4/4846—Busbar details
- H01R4/485—Single busbar common to multiple springs
Definitions
- the present invention relates to an electrical connector intended for an electrical appliance and more particularly for a luminaire. It also relates to an electrical connection device comprising such an electrical connector as well as an electrical appliance, in particular a luminaire, and more particularly a luminaire intended to be recessed, provided with such a connection device. In the case of a luminaire, it can also be a wall lamp, a surface-mounted or suspended luminaire.
- an electrical device mounted in a housing and to be electrically connected by external electrical wires of an electrical network.
- a wall of the housing then has an opening intended for the passage of the external electric wires to supply the electrical apparatus inside the housing. This is the case, for example, for a luminaire recessed in a ceiling.
- the device housing should be closed, preferably by sealing against dust and water at the opening through which the electric wires pass.
- the electrical connection must be made most often when the light or other electrical device is already in place. When the luminaire is recessed into a ceiling, the operation is made more difficult and less comfortable to perform.
- connection support movable between a first position in which the support is inside the housing and a second position in which said support is at least partially outside the housing.
- connection support electrical is in the form of a drawer that is taken out to make an electrical connection or disconnection and that is brought in to seal the case.
- the document WO2016 / 083966 relates to a group for the electrical interconnection of electrical cables which comprises: a first multipole connector adapted to receive at least two first terminals and comprising a first housing body and a first cover; and a second multipole connector adapted to receive at least two second terminals and comprising a second housing body and a second cover, the first multipole connector comprising at least two first pressure elements forming a single monolithic body with the first housing body and / or the first cover; and the second multipole connector comprising at least two second pressing elements forming a single monolithic body with the second housing body and / or the second cover.
- the document WO2016 / 028833 relates to an electrical connector comprising a housing and electrical contacts held by the housing.
- the electrical contacts include contact beams including wire interfaces configured to snap into physical contact with corresponding electrical wires.
- the contact beams are movable between closed positions and open positions.
- the wire interface of each contact beam is configured to snap into physical contact with the corresponding electrical wire when the contact beam is in the closed position.
- the wire interface of each contact beam is configured to be free from physical contact with the corresponding electrical wire when the contact beam is in the open position.
- a release member is movably held by the housing such that movement of the release member is configured to move a plurality of the contact beams from the open position to the closed position, allowing a plurality of the wires to be released. electrical contacts from the corresponding electrical contacts.
- the invention improves the situation. It aims to provide a connection device making it possible to have a compact connection device (with a low impact inside the housing of the electrical apparatus), allowing an automatic connection of conductors and also to disconnect the connected conductors easily from outside.
- Such an automatic connection device is particularly advantageous because the means for carrying out the disconnection “work” parallel to the direction of introduction (and withdrawal) of the wires to be connected. In this way, a compact device is obtained.
- these means for performing the disconnection are also used for guiding the wires to be connected and thus have a dual function.
- the first wall on which the wire to be connected rests, the movable finger and the second guide wall, preferably without any additional element so as to limit the bulk.
- a connection device characterized in that it comprises an insulating body and several connection devices as described above housed in the insulating body, in that the insulating body has a housing for each conductive body, and in that with each housing is associated an access zone extending said housing and having a first guide wall for guiding a wire to connecting to the bearing surface and a second guide wall facing the first for guiding a movable finger.
- a single part is thus produced with the button and the movable fingers which makes it possible in a single operation to act on all the connection devices.
- the insulating body has an elongated shape along a longitudinal axis, and that the housings for the conductive bodies are regularly distributed around the longitudinal axis.
- each connection device is able to receive two wires to be connected in the same conductive body, the leaf spring being split longitudinally at least at the level of its elastic tab. It is then possible, with a single connection device, to supply power to the electrical apparatus associated with said connection device and from this connection device, to carry out a transplanting in order to supply power to another neighboring (or remote) device.
- the insulating body advantageously comprises a shoulder and a threaded part
- the connection device can then further include a nut able to cooperate with the threaded part and the shoulder to sandwich a wall provided with an opening between the shoulder and a transverse face of the nut.
- the nut may be suitable for receiving a cable gland cap.
- an electrical device arranged in a housing, characterized in that it is provided with a connection device as described above.
- This apparatus may further include connection terminals electrically connected with conductive bodies of the connection devices of the connection device.
- the figure 1 illustrates an electrical connection device making it possible to make a connection through a wall 2 of an electrical appliance.
- the wall 2 is provided with a circular opening 4 in which takes place a body 6 having an overall shape of revolution about an axis perpendicular to the wall 2.
- the body 6 is made of an electrically insulating material, by example a synthetic material and has on one side of the wall 2 a shoulder 8 which bears on one face of the wall 2 around the opening 4 and a nut 10 cooperates with a threaded portion 12 of the body 6 s' extending on the other side of the wall 2 to come and fix the body 6 on the wall 2.
- Such a construction is quite conventional for carrying out a wall crossing.
- Other equivalent constructions, for example using an elastic ring instead of a nut, could be considered.
- the body 6 has five compartments 14 as illustrated by the figures 5 and 6 . These compartments 14 are longitudinally through and open at both ends of the body 6. On the side intended to be inside the electrical appliance, the body 6 has a larger diameter than on the side intended to be located outside. of the electrical appliance. On the exterior side, the body 6 has an exterior diameter at most equal to the interior diameter of the opening 4. Thus, the body 6 is introduced from the interior of the electrical appliance and the part of smaller exterior diameter passes. through the opening 4 until it comes to press against the shoulder 8 against the wall 2, on the inside.
- inner part A part intended to be located on the inside of the wall 2 when the body 6 is fixed as explained above on the wall 2 will be called “inner part” hereinafter, and “outer part” a part intended to be located on the outside side. of the wall 2 under these same conditions.
- the compartments 14 are separated from each other by first longitudinal walls 16 extending from a center 18 of the body 6 radiating towards a peripheral wall ( figure 5 ).
- the outer part of the body 6 has a central tubular hub 20 from which extend second longitudinal walls 22 to a peripheral wall of the body 6. These second longitudinal walls 22 separate the compartments 14 in the outer part of the body 6.
- each compartment 14 has a connection device 24.
- the five connection devices 24 are similar. It is each time a connection device without screws allowing to realize the connection of two wires. Such a connection device 24 can also be called an “automatic screwless contact”.
- Each connection device 24 has a structure known to those skilled in the art ( figures 1-4 , 7 and 8 ). It comprises a metallic conductive body and a leaf spring 32 housed in said conductive body.
- the conductive body has a tubular shape of substantially rectangular section.
- a first inner face of the conductive body is called the support face 26 because it is intended to come into contact with an electrical conductor by establishing an electrical connection.
- a second inner face of the conductive body, called the opposite face 28, extends opposite the bearing face 26.
- the opposite face 28 is provided with means of connection with an electrical conductor (not shown) which connects (or allows to connect) the conductive body to the corresponding electrical device.
- the first face and the second face are connected to each other by side faces 30.
- the leaf spring 32 is made from a sheet which is plastically bent to form a spring.
- This leaf spring 32 comprises a substantially planar base 34 intended to come to bear on the opposite face 28 of the conductive body.
- One end of the base 34 is bent at more than 90 ° to form a fixing tab 36 whose free end is fixed (by mechanical connection with hooks for example or by other means such as welding) to the face support 26.
- the other end of the base 34 is also folded over at more than 90 °, on the same side of the base 34 as the fixing tab 36 so as to form an elastic tab which can come to bear, in its rest position, against the bearing face 26 and which can come to deform in the direction of the base 34.
- the leaf spring 32 is split longitudinally into two strips of the same width at least at the level of the elastic tab 38 so as to form two elastic tabs 38 in order to cooperate with two conductors as will be explained below.
- connection device comprises five connection devices 24. Two of them are visible in section on the figures 1 to 4 . These five connection devices 24 are mounted on a plate 40 as illustrated in more detail on the figures 7 and 8 .
- the plate 40 extends transversely with respect to the axis of the connection device and has five housings for each receiving an electrical connection device 24.
- the connection devices 24 are not disposed radially with respect to the axis of the connection device but are inclined. This position allows space to be optimized and allows the connection devices 24 to be accommodated with reduced bulk.
- the plate 40 is mounted on the body 6 by snap-fastening.
- the ring 46 passes over the teeth 42.
- the parts (body 6 and plate 40, in particular ring 46) are dimensioned such that by elastic deformation the ring 46 can pass around the teeth 42 when the teeth 42 are in the notches 44. Once in this position, the plate 40 is secured to the body 6.
- central part 48 comprises a central part called button 50 (because a user is required to act on this central part) and fingers extending longitudinally from the button 50 called needles 52.
- the needles 52 each extend against the inner peripheral wall of the outer part of the body 6 in a compartment 14, between two longitudinal walls 22.
- Each needle 52 has an outer face intended to cooperate with the inner peripheral wall of the body 6 and a inner face intended for guiding a wire to be connected.
- the central part 48 is guided in translation in the body 6 by its needles 52.
- On the outer face of the needles 52 we can see the presence of a tooth 54.
- a corresponding groove is provided each time in the body 6. so on the one hand to guide the needles 52 in their longitudinal translational movement and on the other hand to prevent the central part 48 from being withdrawn from the body 6.
- the central part 48 is mounted on the body 6 by latching the teeth 54 and then remains a prisoner of this body 6.
- connection device is mounted on the wall 2 of an electrical appliance, for example a luminaire 56 like the one illustrated in figure 10 .
- the body 6 is fixed to the wall 2 using the nut 10.
- the connection devices 24 are in place in the inner part of the body 6, both in the body 6 and held in the housings of the plate 40 which is snapped onto the body 6.
- the connection devices 24 are electrically connected to the luminaire 56 (the electrical connections are not illustrated in the figures).
- the central part 48 is mounted in the outer part of the body 6.
- the free ends of the needles 52 that is to say the ends of the needles 52 remote from the button 50, are each close to an elastic tab 38 of a connection device. Wires to connect 58 ( figure 1 ) are in position to connect to the connection devices 24.
- the figure 2 shows the same elements as the figure 1 .
- the stripped free ends of the wires to be connected 58 have been introduced into the connection device and are each located at the input of a connection device.
- the yarns used here are preferably rigid single-stranded yarns or else compacted multi-stranded yarns.
- Each end of wire to be connected 58, and each wire to be connected 58, between the position of the figure 1 and that of the figure 2 is guided, on the one hand, by a needle 52 and, on the other hand, either by the tubular hub 20, or by a second longitudinal wall 22 ( figure 6 ).
- each end of the wire is introduced into a cavity delimited by a needle 52, the tubular means 20 of the body 6 and two longitudinal walls 22 of the body 6.
- each compartment 14 (delimited by the hub tubular 20, two longitudinal walls 22 and a part of the inner peripheral wall of the body 6) are thus (only) one or two end (s) of wire to be connected 58 and a needle 52, the wire (s) being towards the center of the system and the needle 52 further away from the center of the system.
- five wires to be connected 58 are shown but that it is possible to connect up to ten. It is then possible to electrically connect the luminaire 56 and to start again from each connection / connection point to another luminaire in order to supply it as well.
- the wires to be connected 58 are connected.
- the corresponding elastic tab 38 is deformed and allows the end of the thread to pass. Due to the shape of the elastic tab 38, removal is impossible. Indeed, a traction in the direction of withdrawal of the wire causes an arching of the elastic tab 38 which strongly retains the end of the wire introduced into the corresponding connection device 24.
- a cable gland (previously threaded on the wires) is put in place to ensure the dust and water tightness of the connections made.
- a cabochon 60 covers the nut 10. The cabochon 60 is fixed for example on the nut by a quarter turn system.
- a seal 62 comes to ensure the seal between the wires to be connected 58 (which are connected) and the cap 60, a nut 64 being used in a known manner to complete the seal by tightening the seal 62 on the wires (cable gland device ).
- each wire to be connected 58 once connected, is sandwiched between, on the one hand, a bearing face 26 of a connection device 24 and, on the other hand, the elastic tab 38 of a corresponding spring 32.
- the corresponding needle 52 is located opposite the elastic tab 38 and in contact with the wire to be connected 38.
- the bearing face 26, the wire to be connected. connect 58 and the needle 52 each extending substantially longitudinally, the bearing face 26 of the connection device 24 is substantially parallel to the needle 52, and in particular to its inner face in contact with the wire to be connected 58, but these surfaces are spaced from each other by a distance substantially corresponding to the diameter of the wire to be connected 58, considering the stripped part of the wire.
- connection device described above thus allows rapid connection of an electrical device, without tools, in a dust and water-tight and removable manner.
- connection device during the installation for example of a luminaire in a ceiling, greatly facilitates the work of the installer.
- connection device By virtue of the structure of the connection device, those skilled in the art immediately understand that it is unnecessary to open the luminaire in order to connect it electrically (or to disconnect it).
- connection device The disconnection of the wires connected in the connection device is carried out using the central part.
- the latter makes it possible to disconnect the ends of the wires without completely freeing them by inserting the needles between the connected ends and the elastic tab which holds them in their connection device. It is then sufficient to exert a pulling action to make the disconnection effective.
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Abstract
Dispositif de connexion comportant :- un corps conducteur présentant une surface d'appui (26) intérieure,- une lame ressort (32) dans le corps conducteur avec une patte élastique (38) précontrainte vers la surface d'appui (26) et inclinée par rapport à la surface d'appui (26) de manière à permettre l'introduction d'une extrémité de fil conducteur (58) entre ladite patte élastique (38) et la surface d'appui (26) et à en interdire le retrait,- un doigt (52) mobile sensiblement parallèle à la surface d'appui (26) mais décalée par rapport à celle-ci,ledit doigt (52) s'étendant à l'extérieur du corps conducteur et étant mobile entre une première position dans laquelle une extrémité libre du doigt (52) se trouve face à la patte élastique et une seconde position dans laquelle l'extrémité libre du doigt vient agir sur la patte élastique.Dispositif de raccordement intégrant au moins un tel dispositif de connexion.Connection device comprising: - a conductive body having an internal bearing surface (26), - a leaf spring (32) in the conductive body with an elastic tab (38) prestressed towards the bearing surface (26) and inclined relative to the bearing surface (26) so as to allow the introduction of one end of a conductive wire (58) between said elastic tab (38) and the bearing surface (26) and to prevent its withdrawal , - a finger (52) movable substantially parallel to the bearing surface (26) but offset relative to the latter, said finger (52) extending outside the conductive body and being movable between a first position in which a free end of the finger (52) is opposite the elastic tab and a second position in which the free end of the finger acts on the elastic tab. A connecting device incorporating at least one such connection device.
Description
La présente invention concerne un connecteur électrique destiné à un appareil électrique et plus particulièrement à un luminaire. Elle concerne également un dispositif de raccordement électrique comportant un tel connecteur électrique ainsi qu'un appareil électrique, notamment un luminaire, et plus particulièrement un luminaire destiné à être encastré, muni d'un tel dispositif de raccordement. Dans le cas d'un luminaire, il peut aussi s'agir d'une applique, d'un luminaire en saillie ou bien suspendu.The present invention relates to an electrical connector intended for an electrical appliance and more particularly for a luminaire. It also relates to an electrical connection device comprising such an electrical connector as well as an electrical appliance, in particular a luminaire, and more particularly a luminaire intended to be recessed, provided with such a connection device. In the case of a luminaire, it can also be a wall lamp, a surface-mounted or suspended luminaire.
On considère ici un appareil électrique monté dans un boîtier et devant être raccordé électriquement par des fils électriques externes d'un réseau électrique. Une paroi du boîtier comporte alors une ouverture destinée au passage des fils électriques externes pour alimenter l'appareil électrique à l'intérieur du boîtier. C'est le cas par exemple pour un luminaire encastré dans un plafond.We consider here an electrical device mounted in a housing and to be electrically connected by external electrical wires of an electrical network. A wall of the housing then has an opening intended for the passage of the external electric wires to supply the electrical apparatus inside the housing. This is the case, for example, for a luminaire recessed in a ceiling.
Le plus souvent, il est nécessaire d'ouvrir le boîtier de l'appareil pour le raccorder électriquement. Une fois le raccordement réalisé, il faut refermer le boîtier de l'appareil de préférence en réalisant une étanchéité aux poussières et à l'eau au niveau de l'ouverture par laquelle passent les fils électriques. Le raccordement électrique doit se faire le plus souvent lorsque le luminaire, ou autre appareil électrique est déjà en place. Quand le luminaire est encastré dans un plafond, l'opération est rendue plus difficile et moins confortable à réaliser.Most often it is necessary to open the housing of the device to connect it electrically. Once the connection has been made, the device housing should be closed, preferably by sealing against dust and water at the opening through which the electric wires pass. The electrical connection must be made most often when the light or other electrical device is already in place. When the luminaire is recessed into a ceiling, the operation is made more difficult and less comfortable to perform.
Il est connu par le document
Le document
Le document
Ces solutions connues ne permettent pas de connecter un grand nombre de fils électriques ou bien demandent d'avoir une ouverture d'autant plus grande que le nombre de connexions électriques est important.These known solutions do not allow a large number of electric wires to be connected or else require an opening that is all the larger as the number of electric connections is large.
En outre, dans le cas d'une application à un raccordement d'appareil électrique, par exemple un luminaire, comme dans le document
L'invention vient améliorer la situation. Elle vise à proposer un dispositif de connexion permettant d'avoir un dispositif de raccordement compact (avec un faible impact à l'intérieur du boîtier de l'appareil électrique), permettant une connexion automatique de conducteurs et aussi de déconnecter les conducteurs connectés aisément depuis l'extérieur.The invention improves the situation. It aims to provide a connection device making it possible to have a compact connection device (with a low impact inside the housing of the electrical apparatus), allowing an automatic connection of conductors and also to disconnect the connected conductors easily from outside.
La présente invention propose alors un dispositif de connexion comportant :
- un corps conducteur sensiblement tubulaire et présentant une surface d'appui intérieure,
- une lame ressort disposée dans le corps conducteur et présentant une patte élastique précontrainte en direction de la surface d'appui et inclinée par rapport à la surface d'appui de manière à permettre l'introduction d'une extrémité de fil conducteur entre ladite patte élastique et la surface d'appui et à en interdire le retrait,
- a substantially tubular conductive body having an internal bearing surface,
- a leaf spring arranged in the conductive body and having an elastic tab prestressed in the direction of the bearing surface and inclined relative to the bearing surface so as to allow the introduction of one end of the conductive wire between said elastic tab and the bearing surface and to prohibit its removal,
Selon la présente invention, ce dispositif de connexion comporte en outre :
- un doigt mobile présentant une surface de guidage pour un fil à connecter sensiblement parallèle à la surface d'appui mais décalée par rapport à celle-ci,
- a movable finger having a guide surface for a wire to be connected substantially parallel to the bearing surface but offset with respect to the latter,
Un tel dispositif de connexion automatique est particulièrement avantageux car les moyens pour réaliser la déconnexion « travaillent » parallèlement au sens d'introduction (et de retrait) des fils à connecter. De cette manière, on obtient un dispositif compact. En outre, ces moyens pour réaliser la déconnexion sont utilisés aussi pour le guidage des fils à connecter et présentent ainsi une double fonction.Such an automatic connection device is particularly advantageous because the means for carrying out the disconnection “work” parallel to the direction of introduction (and withdrawal) of the wires to be connected. In this way, a compact device is obtained. In addition, these means for performing the disconnection are also used for guiding the wires to be connected and thus have a dual function.
Dans une forme de réalisation, un tel dispositif de connexion peut en outre comporter un corps isolant avec :
- un logement dans lequel prend place le corps conducteur,
- une zone tubulaire d'accès au logement comportant une première paroi de guidage pour un fil à connecter et une seconde paroi de guidage faisant face à la première pour le guidage du doigt mobile.
- a housing in which the conductive body takes place,
- a tubular access zone to the housing comprising a first guide wall for a wire to be connected and a second guide wall facing the first for guiding the movable finger.
Dans une telle forme de réalisation, il est alors prévu que le fil à connecter vienne prendre place entre la première paroi de guidage et le doigt mobile. On a ainsi la première paroi sur laquelle vient reposer le fil à connecter, le doigt mobile et la seconde paroi de guidage, de préférence sans aucun élément supplémentaire de manière à limiter l'encombrement.In such an embodiment, provision is then made for the wire to be connected to take place between the first guide wall and the movable finger. There is thus the first wall on which the wire to be connected rests, the movable finger and the second guide wall, preferably without any additional element so as to limit the bulk.
Selon un autre aspect, il est proposé un dispositif de raccordement, caractérisé en ce qu'il comporte un corps isolant et plusieurs dispositifs de connexion tels que décrits ci-dessus logés dans le corps isolant,
en ce que le corps isolant présente un logement pour chaque corps conducteur, et
en ce qu'à chaque logement est associé une zone d'accès prolongeant ledit logement et présentant une première paroi de guidage pour guider un fil à connecter vers la surface d'appui et une seconde paroi de guidage faisant face à la première pour le guidage d'un doigt mobile.According to another aspect, a connection device is provided, characterized in that it comprises an insulating body and several connection devices as described above housed in the insulating body,
in that the insulating body has a housing for each conductive body, and
in that with each housing is associated an access zone extending said housing and having a first guide wall for guiding a wire to connecting to the bearing surface and a second guide wall facing the first for guiding a movable finger.
Avec plusieurs dispositifs de connexion, il est alors possible de raccorder un appareil électrique. Dans un tel dispositif de raccordement, on peut prévoir que (les caractéristiques exposées dans les paragraphes suivants peuvent, optionnellement, être mises en œuvre. Elles peuvent être mises en œuvre indépendamment les unes des autres ou en combinaison les unes avec les autres) :
- les doigts mobiles s'étendent parallèlement les uns aux autres,
- chaque doigt mobile présente une extrémité libre faisant face à une patte élastique et une extrémité opposée, et
- les extrémités opposées des doigts mobiles sont rattachées à une partie centrale ou bouton.
- the movable fingers extend parallel to each other,
- each movable finger has a free end facing an elastic tab and an opposite end, and
- the opposite ends of the movable fingers are attached to a central part or button.
On réalise ainsi une seule pièce avec le bouton et les doigts mobiles qui permet en une seule opération d'agir sur tous les dispositifs de connexion.A single part is thus produced with the button and the movable fingers which makes it possible in a single operation to act on all the connection devices.
Pour obtenir un dispositif de raccordement compact, il est proposé que le corps isolant présente une forme allongée le long d'un axe longitudinal, et
que les logements pour les corps conducteurs soient régulièrement répartis autour de l'axe longitudinal.In order to obtain a compact connection device, it is proposed that the insulating body has an elongated shape along a longitudinal axis, and
that the housings for the conductive bodies are regularly distributed around the longitudinal axis.
De manière avantageuse, chaque dispositif de connexion est apte à recevoir deux fils à connecter dans un même corps conducteur, la lame ressort étant fendue longitudinalement au moins au niveau de sa patte élastique. Il est alors possible avec un seul dispositif de connexion de venir alimenter l'appareil électrique associé audit dispositif de raccordement et à partir de ce dispositif de raccordement, d'effectuer un repiquage pour aller alimenter un autre appareil voisin (ou éloigné).Advantageously, each connection device is able to receive two wires to be connected in the same conductive body, the leaf spring being split longitudinally at least at the level of its elastic tab. It is then possible, with a single connection device, to supply power to the electrical apparatus associated with said connection device and from this connection device, to carry out a transplanting in order to supply power to another neighboring (or remote) device.
Pour la fixation du dispositif de raccordement à un appareil électrique, le corps isolant comporte avantageusement un épaulement et une partie filetée, et le dispositif de raccordement peut alors comporter en outre un écrou apte à coopérer avec la partie filetée et l'épaulement pour prendre en sandwich une paroi munie d'une ouverture entre l'épaulement et une face transversale de l'écrou. Pour obtenir une meilleure étanchéité du dispositif de raccordement, l'écrou peut être apte à recevoir un cabochon presse étoupe.For fixing the connection device to an electrical appliance, the insulating body advantageously comprises a shoulder and a threaded part, and the connection device can then further include a nut able to cooperate with the threaded part and the shoulder to sandwich a wall provided with an opening between the shoulder and a transverse face of the nut. To obtain better sealing of the connection device, the nut may be suitable for receiving a cable gland cap.
Selon un autre aspect, il est proposé un appareil électrique disposé dans un boîtier, caractérisé en ce qu'il est muni d'un dispositif de raccordement tel que décrit ci-dessus. Cet appareil peut en outre comporter des bornes de connexion reliées électriquement avec des corps conducteurs des dispositifs de connexion du dispositif de raccordement.According to another aspect, there is proposed an electrical device arranged in a housing, characterized in that it is provided with a connection device as described above. This apparatus may further include connection terminals electrically connected with conductive bodies of the connection devices of the connection device.
D'autres caractéristiques, détails et avantages de l'invention apparaîtront à la lecture de la description détaillée ci-après, et à l'analyse des dessins annexés, sur lesquels :
-
Fig. 1
[Fig. 1 ] montre en perspective et en coupe un dispositif de raccordement d'un appareil électrique avant raccordement dudit appareil ; -
Fig. 2
[Fig. 2 ] est une vue similaire à celle de lafigure 1 , juste avant raccordement de l'appareil électrique ; -
Fig. 3
[Fig. 3 ] est une vue similaire à celle des deux vues précédentes et montre l'appareil électrique raccordé ; -
Fig. 4
[Fig. 4 ] est une vue similaire à celle des vues précédentes et montre le dispositif de raccordement dans une position permettant la déconnexion électrique de l'appareil électrique ; -
Fig. 5
[Fig. 5 ] montre en perspective une extrémité d'un corps du dispositif de raccordement desfigures 1 à 4 ; -
Fig. 6
[Fig. 6 ] montre en perspective l'extrémité opposée à celle illustrée sur lafigure 5 du corps du dispositif de raccordement desfigures 1 à 4 ; -
Fig. 7
[Fig. 7 ] montre en vue de face la disposition des cinq dispositifs de connexion du dispositif de raccordement desfigures 1 à 4 ; -
Fig. 8
[Fig. 8 ] montre en perspective les cinq dispositifs de connexion de lafigure 7 avec une pièce de guidage ; -
Fig. 9
[Fig. 9 ] illustre la pièce de guidage de lafigure 8 en perspective selon un autre angle à une autre échelle ; et -
Fig. 10
[Fig. 10 ] montre en perspective le dispositif de raccordement desfigures 1 à 4 monté sur un luminaire.
-
Fig. 1
[Fig. 1 ] shows in perspective and in section a device for connecting an electrical appliance before connecting said appliance; -
Fig. 2
[Fig. 2 ] is a view similar to that of thefigure 1 , just before connecting the electrical appliance; -
Fig. 3
[Fig. 3 ] is a view similar to that of the two previous views and shows the connected electrical appliance; -
Fig. 4
[Fig. 4 ] is a view similar to that of the previous views and shows the connection device in a position allowing the electrical disconnection of the electrical apparatus; -
Fig. 5
[Fig. 5 ] shows in perspective one end of a body of the device for connecting thefigures 1 to 4 ; -
Fig. 6
[Fig. 6 ] shows in perspective the end opposite to that illustrated on thefigure 5 of the body of the connection devicefigures 1 to 4 ; -
Fig. 7
[Fig. 7 ] shows a front view of the arrangement of the five connection devices of the connection device.figures 1 to 4 ; -
Fig. 8
[Fig. 8 ] shows in perspective the five connection devices of thefigure 7 with a guide piece; -
Fig. 9
[Fig. 9 ] illustrates the guide part of thefigure 8 in perspective from another angle on another scale; and -
Fig. 10
[Fig. 10 ] shows in perspective the connection device of thefigures 1 to 4 mounted on a luminaire.
Les figures et la description ci-après contiennent, pour l'essentiel, des éléments de caractère certain. Ils pourront donc non seulement servir à mieux faire comprendre la présente invention mais aussi contribuer à sa définition, le cas échéant.The figures and the description below essentially contain elements of a certain nature. They can therefore not only serve to better understand the present invention but also contribute to its definition, where appropriate.
La
Le corps 6 présente cinq compartiments 14 comme illustré par les
On appellera par la suite « partie intérieure » une partie destinée à se trouver du côté intérieur de la paroi 2 lorsque le corps 6 est fixé comme expliqué plus haut sur la paroi 2 et « partie extérieure » une partie destinée à se trouver du côté extérieur de la paroi 2 dans ces mêmes conditions.A part intended to be located on the inside of the
Dans la partie intérieure du corps 6, les compartiments 14 sont séparés les uns des autres par des premières parois longitudinales 16 s'étendant depuis un centre 18 du corps 6 en rayonnant vers une paroi périphérique (
La partie extérieure du corps 6 présente un moyeu tubulaire 20 central à partir duquel s'étendent des secondes parois longitudinales 22 jusqu'à une paroi périphérique du corps 6. Ces secondes parois longitudinales 22 séparent les compartiments 14 dans la partie extérieure du corps 6.The outer part of the
Du côté intérieur du corps 6, chaque compartiment 14 comporte un dispositif de connexion 24. Les cinq dispositifs de connexion 24 sont semblables. Il s'agit à chaque fois d'un dispositif de connexion sans vis permettant de réaliser la connexion de deux fils. Un tel dispositif de connexion 24 peut aussi être appelé « contact automatique sans vis ».On the inside of the
Chaque dispositif de connexion 24 présente une structure connue de l'homme du métier (
La lame ressort 32 est réalisée à partir d'une tôle qui est pliée plastiquement pour former un ressort. Cette lame ressort 32 comporte une base 34 sensiblement plane destinée à venir en appui sur la face opposée 28 du corps conducteur. Une extrémité de la base 34 est repliée à plus de 90° pour former une patte de fixation 36 dont l'extrémité libre est fixée (par liaison mécanique avec des crochets par exemple ou bien par d'autres moyens comme une soudure) à la face d'appui 26. L'autre extrémité de la base 34 est elle aussi repliée à plus de 90°, du même côté de la base 34 que la patte de fixation 36 de manière à former une patte élastique qui peut venir en appui, dans sa position de repos, contre la face d'appui 26 et qui peut venir se déformer en direction de la base 34. La lame ressort 32 est fendue longitudinalement en deux bandes de même largeur au moins au niveau de la patte élastique 38 de manière à former deux pattes élastiques 38 afin de coopérer avec deux conducteurs comme il sera expliqué plus loin.The
Le dispositif de raccordement comporte cinq dispositifs de connexion 24. Deux d'entre eux sont visibles en coupe sur les
La platine 40 vient se monter sur le corps 6 par encliquetage. On remarque (
On remarque sur la
Les aiguilles 52 s'étendent chacune contre la paroi périphérique intérieure de la partie extérieure du corps 6 dans un compartiment 14, entre deux parois longitudinales 22. Chaque aiguille 52 présente une face extérieure destinée à coopérer avec la paroi périphérique intérieure du corps 6 et une face intérieure destinée au guidage d'un fil à connecter. De la sorte, la pièce centrale 48 est guidée en translation dans le corps 6 par ses aiguilles 52. On remarque sur la face extérieure des aiguilles 52 la présence d'une dent 54. Une rainure correspondante est aménagée à chaque fois dans le corps 6 de manière d'une part à guider les aiguilles 52 dans leur mouvement de translation longitudinale et d'autre part à empêcher le retrait de la pièce centrale 48 hors du corps 6. La pièce centrale 48 vient se monter sur le corps 6 par encliquetage des dents 54 et reste alors prisonnière de ce corps 6.The
Le fonctionnement de ce dispositif tel que décrit plus haut est alors le suivant.The operation of this device as described above is then as follows.
Au départ, le dispositif de raccordement est monté sur la paroi 2 d'un appareil électrique, par exemple un luminaire 56 comme celui illustré sur la
La
Sur la
Une fois la connexion électrique réalisée entre tous les fils à connecter 58 et les dispositifs de connexion 24, un presse étoupe (préalablement enfilés sur les fils) est mis en place pour assurer l'étanchéité aux poussières et à l'eau des connexions réalisées. Un cabochon 60 vient recouvrir l'écrou 10. Le cabochon 60 se fixe par exemple sur l'écrou par un système quart de tour. Un joint 62 vient assurer l'étanchéité entre les fils à connecter 58 (qui sont connectés) et le cabochon 60, un écrou 64 étant utilisé de manière connue pour parfaire l'étanchéité en serrant le joint 62 sur les fils (dispositif presse-étoupe).Once the electrical connection has been made between all the wires to be connected 58 and the
Il est prévu de pouvoir déconnecter les fils qui se trouvent dans la position de la
On peut remarquer ici que l'extrémité de chaque fil à connecter 58, une fois connecté, est pris en sandwich entre, d'une part, une face d'appui 26 d'un dispositif de connexion 24 et, d'autre part, la patte élastique 38 d'un ressort 32 correspondant. L'aiguille 52 correspondante se trouve en vis-à-vis de la patte élastique 38 et au contact du fil à connecter 38. Ainsi, la face d'appui 26, le fil à connecter 58 et l'aiguille 52 s'étendant chacun sensiblement longitudinalement, la face d'appui 26 du dispositif de connexion 24 est sensiblement parallèle à l'aiguille 52, et notamment à sa face intérieure au contact du fil à connecter 58, mais ces surfaces sont distantes l'une de l'autre d'une distance correspondant sensiblement au diamètre du fil à connecter 58, en considérant la partie dénudée du fil.It can be noted here that the end of each wire to be connected 58, once connected, is sandwiched between, on the one hand, a bearing
Le dispositif de raccordement décrit ci-dessus permet ainsi un raccordement rapide d'un appareil électrique, sans outil, de manière étanche aux poussières et à l'eau et démontable.The connection device described above thus allows rapid connection of an electrical device, without tools, in a dust and water-tight and removable manner.
Un tel dispositif de raccordement, lors de l'installation par exemple d'un luminaire dans un plafond, facilite grandement le travail de l'installateur. De par la structure du dispositif de raccordement, l'homme du métier comprend immédiatement qu'il est inutile d'ouvrir le luminaire pour le raccorder électriquement (ou le déconnecter).Such a connection device, during the installation for example of a luminaire in a ceiling, greatly facilitates the work of the installer. By virtue of the structure of the connection device, those skilled in the art immediately understand that it is unnecessary to open the luminaire in order to connect it electrically (or to disconnect it).
Il est possible avec la structure proposée de réaliser le raccordement de dix fils à travers une ouverture 4 dans la paroi 2 du luminaire 56 (ou plus généralement dans une paroi d'un appareil électrique).It is possible with the proposed structure to make the connection of ten wires through an
La déconnection des fils connectés dans le dispositif de raccordement est effectuée à l'aide de la pièce centrale. Cette dernière permet de déconnecter les extrémités de fils sans les libérer totalement en insérant les aiguilles entre les extrémités connectées et la patte élastique qui les maintient dans leur dispositif de connexion. Il suffit alors d'exercer une action de traction pour rendre la déconnexion effective.The disconnection of the wires connected in the connection device is carried out using the central part. The latter makes it possible to disconnect the ends of the wires without completely freeing them by inserting the needles between the connected ends and the elastic tab which holds them in their connection device. It is then sufficient to exert a pulling action to make the disconnection effective.
L'invention ne se limite pas à la forme de réalisation préférée décrite ci-avant et aux variantes de réalisation évoquées, seulement à titre d'exemples, mais elle englobe toutes les variantes que pourra envisager l'homme de l'art dans le cadre de la protection recherchée.The invention is not limited to the preferred embodiment described above and to the embodiments mentioned, only by way of example, but it encompasses all the variants that a person skilled in the art may envisage in the context of protection sought.
Claims (10)
en ce que le corps (6) isolant présente un logement pour chaque corps conducteur, et
en ce qu'à chaque logement est associé une zone d'accès présentant une première paroi (20, 22) de guidage pour guider un fil à connecter (58) vers la surface d'appui et une seconde paroi de guidage faisant face à la première pour le guidage d'un doigt (52) mobile.Connection device, characterized in that it comprises an insulating body (6) and several connection devices (24) according to claim 1 housed in the insulating body (6),
in that the insulating body (6) has a housing for each conductive body, and
in that with each housing is associated an access zone having a first guide wall (20, 22) for guiding a wire to be connected (58) towards the bearing surface and a second guide wall facing the first for guiding a movable finger (52).
en ce que chaque doigt (52) mobile présente une extrémité libre faisant face à une patte élastique (38) et une extrémité opposée, et
en ce que les extrémités opposées des doigts (52) mobiles sont rattachées à une partie centrale ou bouton (50).Connection device according to Claim 3, characterized in that the movable fingers (52) extend parallel to each other,
in that each movable finger (52) has a free end facing an elastic tab (38) and an opposite end, and
in that the opposite ends of the movable fingers (52) are attached to a central part or button (50).
en ce que les logements pour les corps conducteurs sont régulièrement répartis autour de l'axe longitudinal.Connection device according to one of claims 3 or 4, characterized in that the insulating body (6) has an elongated shape along a longitudinal axis, and
in that the housings for the conductive bodies are regularly distributed around the longitudinal axis.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1902574A FR3093867A1 (en) | 2019-03-13 | 2019-03-13 | Electrical connector for an electrical device |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3709445A1 true EP3709445A1 (en) | 2020-09-16 |
Family
ID=67810707
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20162893.0A Withdrawn EP3709445A1 (en) | 2019-03-13 | 2020-03-13 | Electrical connector intended for an electrical appliance |
Country Status (2)
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EP (1) | EP3709445A1 (en) |
FR (1) | FR3093867A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022097087A1 (en) * | 2020-11-06 | 2022-05-12 | TE Connectivity Services Gmbh | Power connector having a wire release mechanism |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2838248A1 (en) | 2002-04-05 | 2003-10-10 | Midi Moulages Plast | ELECTRICAL APPARATUS COMPRISING A QUICK ELECTRICAL CONNECTION TO THE ELECTRICAL SUPPLY, IN PARTICULAR WATERPROOF LUMINAIRE |
FR2877502A1 (en) * | 2004-10-28 | 2006-05-05 | Professional General Elect | TERMINAL ELEMENT AND CONNECTOR WITHOUT SCREW. |
WO2016028833A1 (en) | 2014-08-22 | 2016-02-25 | Tyco Electronics Corporation | Electrical connector having poke-in wire contacts |
WO2016083966A1 (en) | 2014-11-25 | 2016-06-02 | Techno Group S.R.L. | Device for the electrical interconnection of electric cables |
WO2018116236A1 (en) * | 2016-12-22 | 2018-06-28 | Techno Group S.R.L. | Device for the electrical interconnection of electrical cables |
-
2019
- 2019-03-13 FR FR1902574A patent/FR3093867A1/en not_active Withdrawn
-
2020
- 2020-03-13 EP EP20162893.0A patent/EP3709445A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2838248A1 (en) | 2002-04-05 | 2003-10-10 | Midi Moulages Plast | ELECTRICAL APPARATUS COMPRISING A QUICK ELECTRICAL CONNECTION TO THE ELECTRICAL SUPPLY, IN PARTICULAR WATERPROOF LUMINAIRE |
FR2877502A1 (en) * | 2004-10-28 | 2006-05-05 | Professional General Elect | TERMINAL ELEMENT AND CONNECTOR WITHOUT SCREW. |
WO2016028833A1 (en) | 2014-08-22 | 2016-02-25 | Tyco Electronics Corporation | Electrical connector having poke-in wire contacts |
WO2016083966A1 (en) | 2014-11-25 | 2016-06-02 | Techno Group S.R.L. | Device for the electrical interconnection of electric cables |
WO2018116236A1 (en) * | 2016-12-22 | 2018-06-28 | Techno Group S.R.L. | Device for the electrical interconnection of electrical cables |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022097087A1 (en) * | 2020-11-06 | 2022-05-12 | TE Connectivity Services Gmbh | Power connector having a wire release mechanism |
US11699878B2 (en) | 2020-11-06 | 2023-07-11 | Te Connectivity Solutions Gmbh | Power connector having a wire release mechanism |
Also Published As
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FR3093867A1 (en) | 2020-09-18 |
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