WO2019239024A1 - Metal clip for electrically connecting a conductive wire to a metal element - Google Patents

Metal clip for electrically connecting a conductive wire to a metal element Download PDF

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Publication number
WO2019239024A1
WO2019239024A1 PCT/FR2019/051179 FR2019051179W WO2019239024A1 WO 2019239024 A1 WO2019239024 A1 WO 2019239024A1 FR 2019051179 W FR2019051179 W FR 2019051179W WO 2019239024 A1 WO2019239024 A1 WO 2019239024A1
Authority
WO
WIPO (PCT)
Prior art keywords
wing
clip
housing
metal
metal clip
Prior art date
Application number
PCT/FR2019/051179
Other languages
French (fr)
Inventor
Nicolas Bernard
Original Assignee
A. Raymond Et Cie
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 A. Raymond Et Cie filed Critical A. Raymond Et Cie
Priority to ES19737168T priority Critical patent/ES2924918T3/en
Priority to PL19737168.5T priority patent/PL3807956T3/en
Priority to EP19737168.5A priority patent/EP3807956B1/en
Publication of WO2019239024A1 publication Critical patent/WO2019239024A1/en

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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
    • 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
    • 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
    • H01R4/58—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 characterised by the form or material of the contacting members
    • H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
    • H01R4/646—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail for cables or flexible cylindrical bodies
    • 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
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw

Definitions

  • the invention relates to a metal clip for the electrical connection of a conductive wire to a flat metallic element.
  • Documents FR2694141, EP2528166 and FR3036857 are known for earthing clips formed from a one-piece metal plate curved in S so as to define two elastically deformable slots oriented opposite one another and separated by a wall. One slot is intended to be engaged on a flat metal support, the other to receive, for example, a grounding conductor wire. More particularly, the document FR3036857 relates to a clip employing a screw / nut system allowing easy disconnection of the wire from the plate by simple unscrewing. However, this clip requires machining the flat metal support to form an opening through which the nut will pass.
  • such clips are in electrical contact with the conductive wire.
  • the lead wire is not necessarily held firmly to the clip. It is possible in certain circumstances that the conductive wire disengages from the clip, for example when a very high current flows through the conductive wire.
  • the clips disclosed by the aforementioned documents do not generally make it possible to ensure electrical contact with several wires simultaneously while holding them firmly in position.
  • An object of the invention is therefore to propose a metal clip for electrical connection making it possible to be securely and easily secured to one or more conductive wires.
  • the object of the invention provides a metal clip for electrical connection of at least one conductive wire to a planar metallic element, the metal clip being defined by four essentially planar portions, called wings, a curved metal plate to present a cross section in M, the metal clip comprising: a first wing and a second wing defining a fixing housing to allow the clip to be engaged on an edge of the planar metallic element; a third wing and a fourth wing defining a pinch housing and each respectively provided with a first opening (8c) and second opening (8d) facing each other, the pinch housing having a bottom provided with a main opening to allow insertion of the end of the conductive wire; fixing means consisting of a nut cooperating with a clamping screw inserted in the openings of the wings to bring the third wing closer to the fourth wing so as to be able to allow the pinching of the end of the conductive wire between the fourth wing and the third wing and establish electrical contact.
  • the second wing is provided with a third opening arranged opposite the first and the second openings of the third and fourth wing making it possible to receive the end of the screw in order to bring it into contact with the metal element plan ;
  • the first wing and / or the second wing is provided with at least one cutout forming an elastic lug oriented towards the inside of the first housing to improve the fixing of the metal clip to the flat metallic element and the electrical contact;
  • the nut is arranged in an intermediate housing formed by the second wing (2b) and the third wing;
  • the nut consists of the thickness of the third wing, the latter then constituting a nut thread
  • the fourth wing has lateral fins inclined towards the third wing in order to retain the wire inside the pinch housing during its insertion.
  • FIG. 1 shows a metal clip according to the invention
  • FIG. 2a to 2c illustrate the use of a metal clip 1 of electrical connection according to the invention
  • Figure 3 illustrates the step of fixing the electric wire to the clip.
  • a metal clip 1 for electrical connection according to the invention shown in FIG. 1, consists of a metal plate curved in M and therefore having a cross section in M.
  • the term “wing” designates each of the four portions essentially flat of the metal plate defining this shape in M.
  • the clip 1 comprises a first wing 2a and a second wing 2b, integral at the level of a first curved zone which positions them vis-à-vis, and define a fixing housing 3a.
  • This housing is intended to be engaged on an edge of a flat metallic element to which it is desired to electrically connect a conductive wire.
  • the distance separating the first wing 2a and the second wing 2b, defined by the dimensions of the first curved zone, is chosen to substantially correspond to the thickness of the planar metallic element.
  • the elastic deformation of the first curved zone ensures the retention of the metal clip 1 on the flat metallic element and their contacting with electricity.
  • provision may be made to form on the first wing 2a and / or on the second wing 2b a cutout or a plurality of cutouts making it possible to define one or more elastic lugs 4 oriented towards the inside of the first housing 3a.
  • the support force exerted by the elastic lug 4 contributes to firmly hold the metal clip on the flat metal element.
  • the low penetration of the end of this elastic lug 4 into the metal element by scratching effect during its engagement promotes electrical contact.
  • a cut is made on each of the two lateral edges of the first wing 2a and of the second wing 2b, in order to delimit four elastic lugs 4, the lugs 4 of the first wing 2a being placed opposite the lugs 4 of the second wing 2b.
  • the second wing 2b is integral with a third wing 2c, by means of a second curved zone positioning these two wings 2b, 2c opposite, and thus defining a flexible intermediate housing 3b.
  • the third wing 2c is integral with a fourth wing 2d, by means of a third curved zone positioning these two wings 2c, 2d facing each other, and thus defining a pinch housing 3c.
  • the bottom of the pinch housing 3c corresponding to the third curved zone, is provided with a main opening 6 whose size is chosen to allow the insertion of the end of the conductive wire (or conductive wires) which are wish to connect.
  • the metal clip 1 is also provided with fixing means for bringing the third wing 2c closer to the fourth wing 2d so as to be able to wedge the conductive wire between these two wings and establish an electrical contact.
  • the third wing 2c and fourth wing 2d are thus respectively provided with a first opening 8c and a second opening 8d facing each other to allow the passage of a clamping screw 5, preferably metallic.
  • the fixing means advantageously comprise the clamping screw 5 and a nut 7, which can be arranged in the intermediate housing 3b and be secured to the third wing 2c.
  • the second wing 2b can also be provided with a third opening 8b opposite the first and second openings 8c, 8d in order to allow passage of the end of the clamping screw 5.
  • the third opening 8b exposes the surface of the flat metal element, when the clip 1 has been engaged on this element. It is then possible to bring the end of the screw 5 into contact with the metal element to more securely hold the clip 1 to the metal element, and improve the electrical contacting.
  • the nut 7 is formed on the third wing 2c by stamping.
  • the clamping screw 5 is screwed directly onto the thickness of the third wing 2c, the latter then constituting a nut thread. It may also be conceivable that the nut 7 is a separate piece introduced into the intermediate housing when the tightening screw 5 is screwed.
  • the solution proposed by the invention is advantageous for two reasons.
  • the M-shaped shape of the clip 1 makes it possible to orient the main opening 6 in a direction making it possible to introduce the end of the conductive wire towards the interior of the pinching housing without being bothered by the planar element.
  • the fourth wing 2d has lateral fins 9 which extend on each side of the metal clip 1 inclined towards the third wing 2c in order to retain the wire inside the pinch housing 3c during its insertion.
  • the fins 9 partially close the clip 1 on its sides so as to restrict the movement of the wire and keep it in the housing in a position favorable to its pinching.
  • FIG. 2a Figures 2a to 2c illustrate the use of a metal clip 1 for electrical connection according to the invention.
  • the metal clip 1 is assembled to the planar metallic element by engaging the first housing 3a on an outer edge thereof.
  • the clip can be engaged manually or using a tool, such as a hammer for example.
  • the lugs 4 exert a bearing force on the flat metallic element and, by scratching effect, their ends penetrate into the material of this metallic element which contributes to establishing the electrical contact.
  • the clamping screw 5 can independently be inserted into the openings 8c and 8d and partially screwed onto the nut 7 before or after assembly of the metal clip 1 with the flat metal element.
  • the stripped end of the conductive wire is introduced manually into the main opening 6 in the direction of the entrance to the third housing 3c.
  • the conducting wire can continue to progress, for example until the insulating sheath comes into abutment with the main opening 6 as shown in FIG. 2c or a part of the conducting wire protrudes from the inlet of the third housing 3c.
  • the pinching step represented in FIG. 2c
  • the tightening screw 5 is screwed into the nut 7 to crush the conductive wire between the fourth wing 2d and the third wing 2c.
  • the electrical contact is thus maintained by the effect of pressure by crushing the wire between the third wing 2c and the fourth wing 2d.
  • the clamping screw 5 penetrates inside the intermediate housing 3b until possibly touching the second wing 2b depending on the descent depth and length of the screw 5.
  • the intermediate housing 3b is deformed to adjust the spacing between the second wing 2b and the third wing 2c to take into account the length of the tightening screw 5 and the depth of its face.
  • the end of the screw can be brought into contact with the metal element to improve the fixing of the clip and its electrical contact.
  • the same phenomenon of flexible deformation of the intermediate housing which has just been described is also likely to occur in this case.
  • the conducting wire is in electrical contact and firmly held in the clip 1, between the third wing 2c and the fourth wing 2d which have been brought together. from each other by the clamping screw 5 and the nut 7.
  • the clip is also advantageous in that it makes it possible to easily disconnect the conductive wire from the metal clip 1 by simply unscrewing the clamping screw 5.

Landscapes

  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Clamps And Clips (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

The invention relates to a metal clip (1) for electrically connecting at least one conductive wire to a flat metal element, the metal clip being defined by four substantially flat portions, called wings (2a, 2b, 2c, 2d), of a metal plate which is curved so as to form an M-shaped cross-section, said metal clip comprising: a first wing (2a) and a second wing (2b) defining a fastening housing (3a) for allowing the clip (1) to be engaged with an edge of the flat metal element; a third wing (2c) and a fourth wing (2d) defining a clipping housing (3c) and each one being provided with a first opening (8c) and a second opening (8d) facing each other, the clipping housing (3c) having a bottom provided with a main opening (6) for allowing the insertion of the end of the conductive wire; and fastening means (5, 7) consisting of a nut (7) cooperating with a clamping screw (5) inserted into the openings (8c, 8d) of the wings (2c, 2d) in order to bring the third wing (2c) closer to the fourth wing (2d) in such a way as to be able to allow the end of the conductive wire to be clipped between the fourth wing (2d) and the third wing (2c) and to establish electrical contact.

Description

CLIP METALLIQUE DE CONNEXION ELECTRIQUE D'UN FIL CONDUCTEUR A UN  METAL CLIP FOR ELECTRICAL CONNECTION OF A CONDUCTING WIRE TO A
ELEMENT METALLIQUE  METALLIC ELEMENT
DOMAINE DE L'INVENTION FIELD OF THE INVENTION
L' invention concerne un clip métallique de connexion électrique d'un fil conducteur à un élément métallique plan. The invention relates to a metal clip for the electrical connection of a conductive wire to a flat metallic element.
ARRIERE PLAN TECHNOLOGIQUE DE L'INVENTION TECHNOLOGICAL BACKGROUND OF THE INVENTION
On connaît des documents FR2694141, EP2528166 et FR3036857 des clips de mise à la terre formée d'une plaque métallique monobloc courbée en S de manière à définir deux fentes élastiquement déformables orientées à l'opposé l'une de l'autre et séparées par une paroi. Une fente est destinée à être engagée sur un support métallique plan, l'autre à recevoir par exemple un fil conducteur de mise à la terre. Plus particulièrement, le document FR3036857 porte sur un clip employant un système vis/écrou permettant une déconnexion facilitée du fil de la plaque par simple dévissage. Toutefois, ce clip nécessite d'usiner le support métallique plan pour y former une ouverture dans laquelle passera 1 ' écrou . Documents FR2694141, EP2528166 and FR3036857 are known for earthing clips formed from a one-piece metal plate curved in S so as to define two elastically deformable slots oriented opposite one another and separated by a wall. One slot is intended to be engaged on a flat metal support, the other to receive, for example, a grounding conductor wire. More particularly, the document FR3036857 relates to a clip employing a screw / nut system allowing easy disconnection of the wire from the plate by simple unscrewing. However, this clip requires machining the flat metal support to form an opening through which the nut will pass.
Pour assurer leur fonction de mise à la terre, de tels clips sont en contact électrique avec le fil conducteur. Toutefois, le fil conducteur n'est pas nécessairement maintenu fermement au clip. Il est possible dans certaines circonstances que le fil conducteur se désengage du clip, par exemple lorsqu'un courant de très forte intensité circule dans le fil conducteur.  To ensure their earthing function, such clips are in electrical contact with the conductive wire. However, the lead wire is not necessarily held firmly to the clip. It is possible in certain circumstances that the conductive wire disengages from the clip, for example when a very high current flows through the conductive wire.
Par ailleurs, les clips divulgués par les documents précités ne permettent généralement pas d'assurer un contact électrique avec plusieurs fils simultanément tout en les maintenant fermement en position.  Furthermore, the clips disclosed by the aforementioned documents do not generally make it possible to ensure electrical contact with several wires simultaneously while holding them firmly in position.
OBJET DE L'INVENTION Un but de l'invention est donc de proposer un clip métallique de connexion électrique permettant d'être solidarisé de manière fiable et aisée à un ou plusieurs fils conducteurs. OBJECT OF THE INVENTION An object of the invention is therefore to propose a metal clip for electrical connection making it possible to be securely and easily secured to one or more conductive wires.
BREVE DESCRIPTION DE L' INVENTION BRIEF DESCRIPTION OF THE INVENTION
En vue de la réalisation de ce but, l'objet de l'invention propose un clip métallique de connexion électrique d'au moins un fil conducteur à un élément métallique plan, le clip métallique étant défini par quatre portions essentiellement planes, appelées ailes, d'une plaque métallique recourbée pour présenter une section transversale en M, le clip métallique comprenant : une première aile et une deuxième aile définissant un logement de fixation pour permettre d'engager le clip sur un bord de l'élément métallique plan ; une troisième aile et une quatrième aile définissant un logement de pincement et chacune respectivement munie d'une première ouverture (8c) et deuxième ouverture (8d) en regard l'une de l'autre, le logement de pincement présentant un fond muni d'une ouverture principale pour permettre l'insertion de l'extrémité du fil conducteur ; des moyens de fixation constitués d'un écrou coopérant avec une vis de serrage insérée dans les ouvertures des ailes pour rapprocher la troisième aile de la quatrième aile de manière à pouvoir permettre le pincement de l'extrémité du fil conducteur entre la quatrième aile et la troisième aile et établir un contact électrique. With a view to achieving this aim, the object of the invention provides a metal clip for electrical connection of at least one conductive wire to a planar metallic element, the metal clip being defined by four essentially planar portions, called wings, a curved metal plate to present a cross section in M, the metal clip comprising: a first wing and a second wing defining a fixing housing to allow the clip to be engaged on an edge of the planar metallic element; a third wing and a fourth wing defining a pinch housing and each respectively provided with a first opening (8c) and second opening (8d) facing each other, the pinch housing having a bottom provided with a main opening to allow insertion of the end of the conductive wire; fixing means consisting of a nut cooperating with a clamping screw inserted in the openings of the wings to bring the third wing closer to the fourth wing so as to be able to allow the pinching of the end of the conductive wire between the fourth wing and the third wing and establish electrical contact.
Selon d'autres caractéristiques avantageuses et non limitatives de l'invention, prises seules ou en combinaison : According to other advantageous and non-limiting characteristics of the invention, taken alone or in combination:
- la deuxième aile est munie d'une troisième ouverture disposée en regard de la première et de la deuxième ouvertures de la troisième et quatrième aile permettant d'accueillir l'extrémité de la vis en vue de la mettre en contact avec l'élément métallique plan ; - la première aile et/ou la deuxième aile est pourvue d'au moins une découpe formant un ergot élastique orienté vers l'intérieur du premier logement pour améliorer la fixation du clip métallique à l'élément métallique plan et le contact électrique ; - The second wing is provided with a third opening arranged opposite the first and the second openings of the third and fourth wing making it possible to receive the end of the screw in order to bring it into contact with the metal element plan ; - The first wing and / or the second wing is provided with at least one cutout forming an elastic lug oriented towards the inside of the first housing to improve the fixing of the metal clip to the flat metallic element and the electrical contact;
- l'écrou est disposé dans un logement intermédiaire formé de la deuxième aile (2b) et de la troisième aile ; - the nut is arranged in an intermediate housing formed by the second wing (2b) and the third wing;
- l'écrou est constitué par l'épaisseur de la troisième aile, celle-ci constituant alors un filetage d'écrou ; - The nut consists of the thickness of the third wing, the latter then constituting a nut thread;
- la quatrième aile comporte des ailettes latérales inclinés vers la troisième aile afin de retenir le fil à l'intérieur du logement de pincement lors son insertion. - The fourth wing has lateral fins inclined towards the third wing in order to retain the wire inside the pinch housing during its insertion.
BREVE DESCRIPTION DES DESSINS BRIEF DESCRIPTION OF THE DRAWINGS
1/ invention sera mieux comprise à la lumière de la description qui suit des modes de réalisation particuliers et non limitatifs de l'invention en référence aux figures ci-jointes parmi lesquelles : 1 / the invention will be better understood in the light of the following description of particular and non-limiting embodiments of the invention with reference to the attached figures among which:
- la figure 1 représente un clip métallique conforme à l'invention ;  - Figure 1 shows a metal clip according to the invention;
- les figures 2a à 2c illustrent l'utilisation d'un clip métallique 1 de connexion électrique conforme à l'invention ;  - Figures 2a to 2c illustrate the use of a metal clip 1 of electrical connection according to the invention;
la figure 3 illustre l'étape de fixation du fil électrique au clip.  Figure 3 illustrates the step of fixing the electric wire to the clip.
DESCRIPTION DETAILLEE DE L' INVENTION DETAILED DESCRIPTION OF THE INVENTION
Un clip métallique 1 de connexion électrique conforme à l'invention, représenté sur la figure 1, est constitué d'une plaque métallique courbée en M et présentant donc une section transversale en M. On désigne par le terme « aile » chacune des quatre portions essentiellement planes de la plaque métallique définissant cette forme en M. A metal clip 1 for electrical connection according to the invention, shown in FIG. 1, consists of a metal plate curved in M and therefore having a cross section in M. The term “wing” designates each of the four portions essentially flat of the metal plate defining this shape in M.
Le clip 1 comprend une première aile 2a et une deuxième aile 2b, solidaires au niveau d'une première zone courbée qui les positionne en vis-à-vis, et définissent un logement de fixation 3a. Ce logement est destiné à être engagé sur un bord d'un élément métallique plan auquel on souhaite connecter électriquement un fil conducteur. À cet effet, la distance séparant la première aile 2a et la deuxième aile 2b, définie par les dimensions de la première zone courbée, est choisie pour sensiblement correspondre à l'épaisseur de l'élément métallique plan. The clip 1 comprises a first wing 2a and a second wing 2b, integral at the level of a first curved zone which positions them vis-à-vis, and define a fixing housing 3a. This housing is intended to be engaged on an edge of a flat metallic element to which it is desired to electrically connect a conductive wire. To this end, the distance separating the first wing 2a and the second wing 2b, defined by the dimensions of the first curved zone, is chosen to substantially correspond to the thickness of the planar metallic element.
La déformation élastique de la première zone courbée assure le maintien du clip métallique 1 sur l'élément métallique plan et leur mise en contact électrique. Pour améliorer ce contact électrique, on peut prévoir de former sur la première aile 2a et/ou sur la deuxième aile 2b une découpe ou une pluralité de découpes permettant de délimiter un ou plusieurs ergots élastiques 4 orientés vers l'intérieur du premier logement 3a. La force d'appui exercé par l'ergot élastique 4 contribue à maintenir fermement le clip métallique sur l'élément métallique plan. La faible pénétration de l'extrémité de cet ergot élastique 4 dans l'élément métallique par effet de griffure lors de son engagement favorise le contact électrique. The elastic deformation of the first curved zone ensures the retention of the metal clip 1 on the flat metallic element and their contacting with electricity. To improve this electrical contact, provision may be made to form on the first wing 2a and / or on the second wing 2b a cutout or a plurality of cutouts making it possible to define one or more elastic lugs 4 oriented towards the inside of the first housing 3a. The support force exerted by the elastic lug 4 contributes to firmly hold the metal clip on the flat metal element. The low penetration of the end of this elastic lug 4 into the metal element by scratching effect during its engagement promotes electrical contact.
Préférentiellement, une découpe est réalisée sur chacun des deux bords latéraux de la première aile 2a et de la deuxième aile 2b, afin de délimiter quatre ergots élastiques 4, les ergots 4 de la première aile 2a étant placés en vis-à-vis des ergots 4 de la deuxième aile 2b. Preferably, a cut is made on each of the two lateral edges of the first wing 2a and of the second wing 2b, in order to delimit four elastic lugs 4, the lugs 4 of the first wing 2a being placed opposite the lugs 4 of the second wing 2b.
La deuxième aile 2b est solidaire d'une troisième aile 2c, par l'intermédiaire d'une deuxième zone courbée positionnant ces deux ailes 2b, 2c en vis-à-vis, et définissant ainsi un logement intermédiaire 3b flexible. De manière similaire, la troisième aile 2c est solidaire d'une quatrième aile 2d, par l'intermédiaire d'une troisième zone courbée positionnant ces deux ailes 2c, 2d en vis-à-vis, et définissant ainsi un logement de pincement 3c. The second wing 2b is integral with a third wing 2c, by means of a second curved zone positioning these two wings 2b, 2c opposite, and thus defining a flexible intermediate housing 3b. Similarly, the third wing 2c is integral with a fourth wing 2d, by means of a third curved zone positioning these two wings 2c, 2d facing each other, and thus defining a pinch housing 3c.
Le fond du logement de pincement 3c, correspondant à la troisième zone courbée, est muni d'une ouverture principale 6 dont la dimension est choisie pour permettre l'insertion de l'extrémité du fil conducteur (ou des fils conducteurs) que l'on souhaite raccorder . The bottom of the pinch housing 3c, corresponding to the third curved zone, is provided with a main opening 6 whose size is chosen to allow the insertion of the end of the conductive wire (or conductive wires) which are wish to connect.
Selon l'invention, le clip métallique 1 est également muni de moyens de fixation pour rapprocher la troisième aile 2c de la quatrième aile 2d de manière à pouvoir coincer le fil conducteur entre ces deux ailes et établir un contact électrique. According to the invention, the metal clip 1 is also provided with fixing means for bringing the third wing 2c closer to the fourth wing 2d so as to be able to wedge the conductive wire between these two wings and establish an electrical contact.
La troisième aile 2c et quatrième aile 2d sont ainsi respectivement munies d'une première ouverture 8c et d'une seconde ouverture 8d en regard l'une de l'autre pour permettre le passage d'une vis de serrage 5, préférentiellement métallique. Les moyens de fixation comprennent avantageusement la vis de serrage 5 et un écrou 7, qui peut être disposé dans le logement intermédiaire 3b et être solidaire de la troisième aile 2c. Lorsque la vis de serrage 5 est vissée dans l'écrou 7, la quatrième aile 2d et la troisième aile 2c se rapprochent l'une de l'autre pour assurer le pincement ferme de l'extrémité du fils conducteur entre ces deux ailes et assurer un contact électrique. The third wing 2c and fourth wing 2d are thus respectively provided with a first opening 8c and a second opening 8d facing each other to allow the passage of a clamping screw 5, preferably metallic. The fixing means advantageously comprise the clamping screw 5 and a nut 7, which can be arranged in the intermediate housing 3b and be secured to the third wing 2c. When the clamping screw 5 is screwed into the nut 7, the fourth wing 2d and the third wing 2c approach each other to ensure the firm pinching of the end of the conductive wire between these two wings and ensure an electrical contact.
De manière avantageuse, la deuxième aile 2b peut également être munie d'une troisième ouverture 8b en regard des première et deuxième ouvertures 8c, 8d afin de permettre le passage de l'extrémité de la vis de serrage 5. La troisième ouverture 8b expose la surface de l'élément métallique plan, lorsque le clip 1 a été engagé sur cet élément. Il est alors possible de mettre en contact l'extrémité de la vis 5 avec l'élément métallique pour maintenir plus fixement le clip 1 à l'élément métallique, et améliorer la mise en contact électrique. De manière avantageuse, l'écrou 7 est formé sur la troisième aile 2c par emboutissage. Alternativement, la vis de serrage 5 se visse directement sur l'épaisseur de la troisième aile 2c, celle-ci constituant alors un filetage d'écrou. Il peut aussi être envisageable que l'écrou 7 soit une pièce séparée introduite dans le logement intermédiaire lors du vissage de la vis de serrage 5. Advantageously, the second wing 2b can also be provided with a third opening 8b opposite the first and second openings 8c, 8d in order to allow passage of the end of the clamping screw 5. The third opening 8b exposes the surface of the flat metal element, when the clip 1 has been engaged on this element. It is then possible to bring the end of the screw 5 into contact with the metal element to more securely hold the clip 1 to the metal element, and improve the electrical contacting. Advantageously, the nut 7 is formed on the third wing 2c by stamping. Alternatively, the clamping screw 5 is screwed directly onto the thickness of the third wing 2c, the latter then constituting a nut thread. It may also be conceivable that the nut 7 is a separate piece introduced into the intermediate housing when the tightening screw 5 is screwed.
La solution proposée par l'invention est avantageuse pour deux raisons. En premier lieu, la pression créée sur le fil par la troisième aile 2c et quatrième aile 2d assure un maintien ferme du fil conducteur. Une force de traction exercée sur ce fil est moins susceptible de le déloger du clip que dans les solutions connues de l'état de la technique. En second lieu, il est possible de raccorder plusieurs fils électriques, par exemple deux fils, en les insérant dans le logement de pincement 3c. Par exemple, il est possible d'insérer deux fils conducteurs par l'ouverture principale 6 de sorte que les deux fils soient positionnés de part et d'autre de la vis de serrage 5. The solution proposed by the invention is advantageous for two reasons. First, the pressure created on the wire by the third wing 2c and fourth wing 2d ensures a firm hold of the conductive wire. A tensile force exerted on this wire is less likely to dislodge it from the clip than in the solutions known from the prior art. Secondly, it is possible to connect several electrical wires, for example two wires, by inserting them into the pinch housing 3c. For example, it is possible to insert two conductive wires through the main opening 6 so that the two wires are positioned on either side of the clamping screw 5.
Lorsque le clip 1 est inséré sur l'élément plan métallique, la forme en M du clip 1 permet d'orienter l'ouverture principale 6 selon une direction permettant d'introduire l'extrémité du fil conducteur vers l'intérieur du logement de pincement sans être gêné par l'élément plan. When the clip 1 is inserted on the metallic flat element, the M-shaped shape of the clip 1 makes it possible to orient the main opening 6 in a direction making it possible to introduce the end of the conductive wire towards the interior of the pinching housing without being bothered by the planar element.
De manière avantageuse, la quatrième aile 2d comporte des ailettes latérales 9 qui s'étendent de chaque côté du clip métallique 1 inclinés vers la troisième aile 2c afin de retenir le fil à l'intérieur du logement de pincement 3c lors de son insertion. Les ailettes 9 viennent fermer partiellement le clip 1 sur ses cotés de manière à restreindre le déplacement du fil et de le maintenir dans le logement dans une position favorable à son pincement . Advantageously, the fourth wing 2d has lateral fins 9 which extend on each side of the metal clip 1 inclined towards the third wing 2c in order to retain the wire inside the pinch housing 3c during its insertion. The fins 9 partially close the clip 1 on its sides so as to restrict the movement of the wire and keep it in the housing in a position favorable to its pinching.
Les figures 2a à 2c illustrent l'utilisation d'un clip métallique 1 de connexion électrique conforme à l'invention. Dans une première étape représentée sur la figure 2a, dite étape fixation, le clip métallique 1 est assemblé à l'élément métallique plan en engageant le premier logement 3a sur un bord extérieur de celui-ci. L'engagement du clip peut être réalisé manuellement ou à l'aide d'un outil, tel qu'un marteau par exemple. Les ergots 4 exercent un effort d'appui sur l'élément métallique plan et, par effet de griffure, leurs extrémités pénètrent dans le matériau de cet élément métallique ce qui contribue à établir le contact électrique. Figures 2a to 2c illustrate the use of a metal clip 1 for electrical connection according to the invention. In a first step shown in FIG. 2a, called the fixing step, the metal clip 1 is assembled to the planar metallic element by engaging the first housing 3a on an outer edge thereof. The clip can be engaged manually or using a tool, such as a hammer for example. The lugs 4 exert a bearing force on the flat metallic element and, by scratching effect, their ends penetrate into the material of this metallic element which contributes to establishing the electrical contact.
La vis de serrage 5 peut de manière indépendante être insérée dans les ouvertures 8c et 8d et partiellement vissée sur l'écrou 7 avant ou après l'assemblage du clip métallique 1 avec l'élément métallique plan. The clamping screw 5 can independently be inserted into the openings 8c and 8d and partially screwed onto the nut 7 before or after assembly of the metal clip 1 with the flat metal element.
Dans une deuxième étape, dite étape d'insertion, représentée sur la figure 2b, l'extrémité dénudée du fil conducteur est introduite manuellement dans l'ouverture principale 6 en direction de l'entrée du troisième logement 3c. Le fil conducteur peut poursuivre sa progression, par exemple jusqu'à ce que la gaine isolante vienne en butée de l'ouverture principale 6 comme cela est représenté sur la figure 2c ou qu'une partie du fil conducteur dépasse de l'entrée du troisième logement 3c. In a second step, called the insertion step, shown in FIG. 2b, the stripped end of the conductive wire is introduced manually into the main opening 6 in the direction of the entrance to the third housing 3c. The conducting wire can continue to progress, for example until the insulating sheath comes into abutment with the main opening 6 as shown in FIG. 2c or a part of the conducting wire protrudes from the inlet of the third housing 3c.
Dans une dernière étape, dite étape de pincement, représentée sur la figure 2c, une fois le fil électrique correctement positionné, on visse la vis de serrage 5 dans l'écrou 7 pour écraser le fil conducteur entre la quatrième aile 2d et la troisième aile 2c. Le contact électrique est ainsi maintenu par effet de pression en écrasant le fil entre la troisième aile 2c et la quatrième aile 2d. In a last step, called the pinching step, represented in FIG. 2c, once the electric wire is correctly positioned, the tightening screw 5 is screwed into the nut 7 to crush the conductive wire between the fourth wing 2d and the third wing 2c. The electrical contact is thus maintained by the effect of pressure by crushing the wire between the third wing 2c and the fourth wing 2d.
Lors du vissage, la vis de serrage 5 pénètre à l'intérieur du logement intermédiaire 3b jusqu'à éventuellement toucher la deuxième aile 2b selon la profondeur de descente et longueur de la vis 5. Le logement intermédiaire 3b se déforme pour ajuster l'espacement entre la deuxième aile 2b et la troisième aile 2c pour prendre en compte la longueur de la vis de serrage 5 et la profondeur de son visage. When screwing, the clamping screw 5 penetrates inside the intermediate housing 3b until possibly touching the second wing 2b depending on the descent depth and length of the screw 5. The intermediate housing 3b is deformed to adjust the spacing between the second wing 2b and the third wing 2c to take into account the length of the tightening screw 5 and the depth of its face.
Si la deuxième aile 2b a été munie d'une ouverture 8b, l'extrémité de la vis peut être mis en contact avec l'élément métallique pour améliorer la fixation du clip et son contact électrique. Le même phénomène de déformation flexible du logement intermédiaire qui vient d'être décrit est également susceptible de se produire dans ce cas. If the second wing 2b has been provided with an opening 8b, the end of the screw can be brought into contact with the metal element to improve the fixing of the clip and its electrical contact. The same phenomenon of flexible deformation of the intermediate housing which has just been described is also likely to occur in this case.
A l'issu de l'étape de pincement, et comme cela est représenté sur la figure 3, le fil conducteur est en contact électrique et fermement maintenu dans le clip 1, entre la troisième aile 2c et la quatrième aile 2d qui ont été rapprochées l'une de l'autre par la vis de serrage 5 et l'écrou 7. At the end of the pinching step, and as shown in FIG. 3, the conducting wire is in electrical contact and firmly held in the clip 1, between the third wing 2c and the fourth wing 2d which have been brought together. from each other by the clamping screw 5 and the nut 7.
Le clip est également avantageux en ce qu'il permet de facilement déconnecter le fil conducteur du clip métallique 1 par simple dévissage de la vis de serrage 5. The clip is also advantageous in that it makes it possible to easily disconnect the conductive wire from the metal clip 1 by simply unscrewing the clamping screw 5.
Bien entendu l'invention n'est pas limitée à l'exemple décrit et on peut y apporter des variantes de réalisation sans sortir du cadre de l'invention tel que défini par les revendications . Of course, the invention is not limited to the example described and it is possible to make variant embodiments without departing from the scope of the invention as defined by the claims.
On pourrait notamment prévoir d'autres moyens de fixation que la vis de serrage et que l'écrou pour rapprocher les deux ailes l'une de l'autre et coincer le fil conducteur dans le logement. One could in particular provide other fixing means than the clamping screw and the nut to bring the two wings together and wedge the conductive wire in the housing.

Claims

REVENDICATIONS
1. Clip métallique (1) de connexion électrique d'au moins un fil conducteur à un élément métallique plan, le clip métallique étant défini par quatre portions essentiellement planes, appelées ailes (2a, 2b, 2c, 2d) , d'une plaque métallique recourbée pour présenter une section transversale en M, le clip métallique comprenant : 1. Metal clip (1) for electrical connection of at least one conductive wire to a planar metallic element, the metal clip being defined by four essentially planar portions, called wings (2a, 2b, 2c, 2d), of a plate metallic bent to present a cross section in M, the metallic clip comprising:
a. une première aile (2a) et une deuxième aile (2b) définissant un logement de fixation (3a) pour permettre d'engager le clip (1) sur un bord de l'élément métallique plan ;  at. a first wing (2a) and a second wing (2b) defining a fixing housing (3a) to enable the clip (1) to be engaged on an edge of the planar metallic element;
b. une troisième aile (2c) et une quatrième aile (2d) définissant un logement de pincement (3c) et chacune respectivement munie d'une première ouverture (8c) et deuxième ouverture (8d) en regard l'une de l'autre, le logement de pincement (3c) présentant un fond muni d'une ouverture principale (6) pour permettre l'insertion de l'extrémité du fil conducteur ;  b. a third wing (2c) and a fourth wing (2d) defining a pinch housing (3c) and each respectively provided with a first opening (8c) and second opening (8d) facing each other, the pinch housing (3c) having a bottom provided with a main opening (6) to allow insertion of the end of the conductive wire;
c. des moyens de fixation (5, 7) constitués d'un écrou (7) coopérant avec une vis de serrage (5) insérée dans les ouvertures (8c, 8d) des ailes (2c, 2d) pour rapprocher la troisième aile (2c) de la quatrième aile (2d) de manière à pouvoir permettre le pincement de l'extrémité du fil conducteur entre la quatrième aile (2d) et la troisième aile (2c) et établir un contact électrique.  vs. fixing means (5, 7) consisting of a nut (7) cooperating with a clamping screw (5) inserted in the openings (8c, 8d) of the wings (2c, 2d) to bring the third wing (2c) of the fourth wing (2d) so as to be able to allow the pinching of the end of the conductive wire between the fourth wing (2d) and the third wing (2c) and to establish an electrical contact.
2. Clip métallique (1) selon la revendication précédente dans lequel la deuxième aile (2b) est munie d'une troisième ouverture (8b) disposée en regard de la première et de la deuxième ouvertures (8c, 8d) de la troisième (2c) et quatrième aile (2d) permettant d'accueillir l'extrémité de la vis (5) en vue de la mettre en contact avec l'élément métallique plan. 2. Metal clip (1) according to the preceding claim wherein the second wing (2b) is provided with a third opening (8b) disposed opposite the first and the second openings (8c, 8d) of the third (2c ) and fourth wing (2d) for receiving the end of the screw (5) in order to bring it into contact with the flat metal element.
3. Clip métallique (1) selon l'une des revendications précédentes dans lequel la première aile (2a) et/ou la deuxième aile (2b) est pourvue d'au moins une découpe formant un ergot élastique (4) orienté vers l'intérieur du premier logement (3a) pour améliorer la fixation du clip métallique (1) à l'élément métallique plan et le contact électrique. 3. Metal clip (1) according to one of the preceding claims in which the first wing (2a) and / or the second wing (2b) is provided with at least one cutout forming an elastic lug (4) oriented towards the interior of the first housing (3a) to improve the fixing of the metal clip (1) to the flat metal element and the electrical contact.
4. Clip métallique (1) selon l'une des revendications précédentes dans lequel l'écrou est disposé dans un logement intermédiaire (3b) formé de la deuxième aile (2b) et de la troisième aile (2c) . 4. Metal clip (1) according to one of the preceding claims wherein the nut is disposed in an intermediate housing (3b) formed of the second wing (2b) and the third wing (2c).
5. Clip métallique (1) selon l'une des revendications précédentes dans lequel l'écrou (7) est constitué par l'épaisseur de la troisième aile (2c), celle-ci constituant alors un filetage d'écrou. 5. Metal clip (1) according to one of the preceding claims wherein the nut (7) consists of the thickness of the third wing (2c), the latter then constituting a nut thread.
6. Clip métallique (1) selon l'une des revendications précédentes dans lequel la quatrième aile (2d) comporte des ailettes latérales (9) inclinés vers la troisième aile (2c) afin de retenir le fil à l'intérieur du logement de pincement (3c) lors son insertion. 6. Metal clip (1) according to one of the preceding claims in which the fourth wing (2d) comprises lateral fins (9) inclined towards the third wing (2c) in order to retain the wire inside the nip housing (3c) during its insertion.
PCT/FR2019/051179 2018-06-15 2019-05-23 Metal clip for electrically connecting a conductive wire to a metal element WO2019239024A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES19737168T ES2924918T3 (en) 2018-06-15 2019-05-23 Metal clip for electrically connecting a lead wire to a metal item
PL19737168.5T PL3807956T3 (en) 2018-06-15 2019-05-23 Metal clip for electrically connecting a conductive wire to a metal element
EP19737168.5A EP3807956B1 (en) 2018-06-15 2019-05-23 Metal clip for electrically connecting a conductive wire to a metal element

Applications Claiming Priority (2)

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FR1855270A FR3082669B1 (en) 2018-06-15 2018-06-15 METAL CLIP FOR ELECTRICAL CONNECTION FROM A CONDUCTING WIRE TO A METAL ELEMENT
FR1855270 2018-06-15

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WO2019239024A1 true WO2019239024A1 (en) 2019-12-19

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CN (1) CN210120249U (en)
ES (1) ES2924918T3 (en)
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PT (1) PT3807956T (en)
WO (1) WO2019239024A1 (en)

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EP4175074A1 (en) * 2021-10-28 2023-05-03 Helu Kabel GmbH Grounding clip and connection assembly
US11668332B2 (en) 2018-12-14 2023-06-06 Rmh Tech Llc Mounting device for nail strip panels
US11774143B2 (en) 2017-10-09 2023-10-03 Rmh Tech Llc Rail assembly with invertible side-mount adapter for direct and indirect mounting applications
US11788291B2 (en) 2020-03-17 2023-10-17 Rmh Tech Llc Mounting device for controlling uplift of a metal roof
US11808043B2 (en) 2016-10-31 2023-11-07 Rmh Tech Llc Metal panel electrical bonding clip
US11885139B2 (en) 2011-02-25 2024-01-30 Rmh Tech Llc Mounting device for building surfaces having elongated mounting slot
EP4097797A4 (en) * 2020-01-30 2024-05-22 Hubbell Inc Wiring chamber with multiple terminations
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FR2694141A1 (en) 1992-07-23 1994-01-28 Cit Alcatel Auto-stripping cable clip for use in telecommunications exchange - has knife section on clip inner sections piercing cable and contacting earth as cable is inserted
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US11885139B2 (en) 2011-02-25 2024-01-30 Rmh Tech Llc Mounting device for building surfaces having elongated mounting slot
US11333179B2 (en) 2011-12-29 2022-05-17 Rmh Tech Llc Mounting device for nail strip panels
US11573033B2 (en) 2016-07-29 2023-02-07 Rmh Tech Llc Trapezoidal rib mounting bracket with flexible legs
US11808043B2 (en) 2016-10-31 2023-11-07 Rmh Tech Llc Metal panel electrical bonding clip
US11774143B2 (en) 2017-10-09 2023-10-03 Rmh Tech Llc Rail assembly with invertible side-mount adapter for direct and indirect mounting applications
US11616468B2 (en) 2018-03-21 2023-03-28 Rmh Tech Llc PV module mounting assembly with clamp/standoff arrangement
US11668332B2 (en) 2018-12-14 2023-06-06 Rmh Tech Llc Mounting device for nail strip panels
EP4097797A4 (en) * 2020-01-30 2024-05-22 Hubbell Inc Wiring chamber with multiple terminations
GB2592263A (en) * 2020-02-24 2021-08-25 Linian Lab Ltd Fastening device
WO2021170991A1 (en) * 2020-02-24 2021-09-02 Linian Lab Ltd Fastening device
GB2592263B (en) * 2020-02-24 2024-06-12 Linian Lab Ltd Fastening device
US11739529B2 (en) 2020-03-16 2023-08-29 Rmh Tech Llc Mounting device for a metal roof
US11512474B2 (en) 2020-03-16 2022-11-29 Rmh Tech Llc Mounting device for a metal roof
US11352793B2 (en) 2020-03-16 2022-06-07 Rmh Tech Llc Mounting device for a metal roof
US11965337B2 (en) 2020-03-16 2024-04-23 Rmh Tech Llc Mounting device for a metal roof
US11788291B2 (en) 2020-03-17 2023-10-17 Rmh Tech Llc Mounting device for controlling uplift of a metal roof
EP4175074A1 (en) * 2021-10-28 2023-05-03 Helu Kabel GmbH Grounding clip and connection assembly
US12018861B2 (en) 2022-05-16 2024-06-25 Rmh Tech Llc Mounting device for nail strip panels

Also Published As

Publication number Publication date
CN210120249U (en) 2020-02-28
FR3082669B1 (en) 2021-09-03
ES2924918T3 (en) 2022-10-11
EP3807956A1 (en) 2021-04-21
PL3807956T3 (en) 2022-09-26
EP3807956B1 (en) 2022-06-22
FR3082669A1 (en) 2019-12-20
PT3807956T (en) 2022-08-22

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