CN210120249U - Metal clip for electrically connecting a conductor to a metal element - Google Patents

Metal clip for electrically connecting a conductor to a metal element Download PDF

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Publication number
CN210120249U
CN210120249U CN201920894075.7U CN201920894075U CN210120249U CN 210120249 U CN210120249 U CN 210120249U CN 201920894075 U CN201920894075 U CN 201920894075U CN 210120249 U CN210120249 U CN 210120249U
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China
Prior art keywords
wing
opening
clip
wire
metal
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CN201920894075.7U
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Chinese (zh)
Inventor
N·伯纳德
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A Raymond SARL
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A Raymond SARL
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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
    • H01R4/48185—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

Abstract

The present invention relates to a metal clip for electrically connecting a wire with a metal element, wherein the metal clip is defined by four substantially flat portions, also called wings, bent into a metal plate having an M-shaped cross section, the metal clip comprising: a first wing and a second wing defining a securing notch enabling engagement of the clip onto one edge of a flat metal element; a third wing and a fourth wing defining a clamping recess, and each of the third wing and the fourth wing is provided with a first opening and a second opening, respectively, facing each other, wherein the clamping recess has a bottom provided with a main opening so as to be able to insert an end of the wire; a fixing means consisting of a nut cooperating with a fastening screw inserted in the opening of the wing to draw the third wing closer to the fourth wing, so as to be able to clamp the end of the wire between the fourth and third wings and to create an electrical contact.

Description

Metal clip for electrically connecting a conductor to a metal element
Technical Field
The utility model relates to a metal clip for being connected at least one wire electricity to flat metal component.
Background
From documents FR2694141, EP2528166 and FR3036857, a grounding clip is known, formed by a solid metal plate bent to form an S-shape to define two elastically deformable slots oriented opposite each other and separated by a wall. One slot for engaging onto the flat metal support and the other slot for receiving, for example, a ground wire. In particular, document FR3036857 relates to a clip using a screw/nut system which, by simple unscrewing, makes it possible to easily disconnect the wires from the panel. However, the clip requires machining of the flat metal support to form an opening therein through which the nut will pass.
Such clips make electrical contact with the wires in order to perform their grounding function. However, the wires are not necessarily held securely to the clip. In some cases, for example, when a very high current flows through the wire, the wire may become detached from the clip.
In addition, the clips disclosed in the above documents are generally unable to make electrical contact with multiple wires simultaneously while holding them securely in place.
SUMMERY OF THE UTILITY MODEL
It is therefore an object of the present invention to provide a metal clip for electrical connection which enables a reliable and easy connection to one or more wires.
Brief description of the utility model
In order to achieve this object, the object of the present invention is to propose a metal clip for electrically connecting at least one conductor to a flat metal element, wherein said metal clip is defined by four substantially flat portions, also called wings, bent into a metal plate having an M-shaped cross-section, said metal clip comprising: first and second wings defining a securing notch enabling engagement of the clip onto one edge of the flat metal element; a third wing and a fourth wing defining a clamping recess and each provided with a first opening and a second opening, respectively, facing each other, wherein the clamping recess has a bottom provided with a main opening to enable insertion of an end of the wire; a securing means consisting of a nut that cooperates with a fastening screw inserted into the opening of the wings to draw the third wing closer to the fourth wing, thereby enabling the end of the wire to be clamped between the fourth and third wings and creating an electrical contact.
According to other advantageous and non-limiting features of the invention, the following features can be used alone or in combination:
said second wing is provided with a third opening positioned opposite said first opening of said third wing and said second opening of said fourth wing to receive an end of said fastening screw to bring said end of said fastening screw into contact with said flat metal element;
the first wing and/or the second wing are provided with at least one cut-out forming a resilient pin oriented towards the inside of the first notch to improve the attachment of the metal clip to the flat metal element and to improve the electrical contact;
the nut is disposed in an intermediate recess formed by the second wing and the third wing;
said nut being constituted by the thickness of said third wing, said third wing then constituting a nut thread;
the fourth wing has lateral fins inclined toward the third wing to retain the wire within the clamping recess upon insertion.
Drawings
The invention will be better understood by reading the following description of specific but non-limiting embodiments of the invention, while referring to the accompanying drawings, in which:
figure 1 shows a metal clip according to the invention;
fig. 2A to 2C show the use of the metal clip 1 for electrical connection according to the present invention;
fig. 3 shows the step of attaching a wire to the clip.
Detailed Description
The metal clip 1 for electrical connection according to the present invention (shown in fig. 1) is composed of a metal plate which is bent to form an M-shape, thus having an M-shaped cross section. The term "wing" refers to each of the four substantially flat portions of the metal sheet defining the M-shape.
The clip 1 comprises a first wing 2a and a second wing 2b, the first wing 2a and the second wing 2b being attached to a first bending zone, which positions them facing each other and defines a fixing notch 3 a. The notch is for engagement to an edge of a flat metal member to which a lead wire is to be electrically connected. For this purpose, the distance between the first wing 2a and the second wing 2b (defined by the dimensions of the first bending zone) is chosen to substantially correspond to the thickness of the flat metal element.
The elastic deformation of the first bending region ensures that the metal clip 1 remains on the flat metal element and makes electrical contact. To improve this electrical contact, a notch or notches may be formed on the first wing 2a and/or the second wing 2b to define one or more resilient pins 4 facing inside the first notch 3 a. The pressing force exerted by the spring pin 4 helps to hold the metal clip firmly on the flat metal element. The ends of the spring pins 4 penetrate the metal elements less by scraping when engaged, which facilitates the electrical contact.
Preferably, a cut is made on each of the two side edges of the first wing 2a and of the second wing 2b, to define four elastic pins 4, the pins 4 of the first wing 2a being placed opposite the pins 4 of the second wing 2 b.
The second wing 2b is attached to the third wing 2c via a second bending zone which positions the two wings 2b, 2c opposite each other, thereby defining a flexible intermediate notch 3 b.
Similarly, the third wing 2c is attached to the fourth wing 2d via a third bending region, which positions the two wings 2c, 2d opposite each other, thereby defining a clamping recess 3 c.
The bottom of the clamping recess 3c (corresponding to the third bending zone) has a main opening 6, the size of the main opening 6 being selected to enable the insertion of the end of the wire desired to be connected.
According to the utility model discloses, metal clip 1 still is provided with fixing device to draw third wing 2c to fourth wing 2d, make the wire can be intercepted and establish the electrical contact between these two wings.
The third wing 2c and the fourth wing 2d are provided with a first opening 8c and a second opening 8d, respectively, facing each other, to enable the passage of a preferably metallic fastening screw 5. The fixing means advantageously comprise a fastening screw 5 and a nut 7, the nut 7 being placeable in the intermediate recess 3b and being fixed to the third wing 2 c. When the tightening screw 5 is screwed into the nut 7, the fourth wing 2d and the third wing 2c come closer together to ensure that the end of the wire is clamped firmly between the two wings and to create an electrical contact.
Advantageously, the second wing 2b can also be provided with a third opening 8b opposite the first 8c and second 8d openings to allow the passage of the end of the fastening screw 5. The third opening 8b exposes the surface of the flat metal element when the clip 1 has been joined to the flat metal element. It is then possible to bring the end of the screw 5 into contact with the metal element to hold the clip 1 more firmly to the metal element and to improve the electrical contact.
Advantageously, the nut 7 is formed on the third wing 2c by stamping. Alternatively, the fastening screw 5 is screwed directly onto the thickness of the third wing 2c, the thickness of the third wing 2c then forming a nut thread. The nut 7 may also be a separate part which is inserted into the intermediate recess when the tightening screw 5 is screwed in.
The solution proposed by the present invention is advantageous for two reasons. First, the pressure created on the wire by the third and fourth wings 2c, 2d ensures that the wire is held securely. The pulling force exerted on the wire is less likely to remove the wire from the clip than in known prior art solutions. Secondly, a plurality of electric wires, for example, two electric wires can be connected by inserting the plurality of electric wires into the clamping recesses 3 c. For example, two wires may be inserted through the main opening 6 such that both wires are positioned on either side of the fastening screw 5.
The M-shape of the clip 1 enables the main opening 6 to be oriented in a direction that allows the end of a wire to be inserted towards the inside of the clamping recess without being prevented by the flat element when the clip 1 is inserted on the flat metal element.
Advantageously, the fourth wing 2d has lateral fins 9, the lateral fins 9 extending obliquely towards the third wing 2c on each side of the metal clip 1, in order to retain the wire inside the clamping recess 3c when inserted. The fins 9 partially enclose the clip 1 at the sides of the clip 1 in order to limit the movement of the wire and keep it in a position in the recess that facilitates clamping.
Fig. 2A to 2C show the use of the metal clip 1 for electrical connection according to the present invention.
In a first step (referred to as an attaching step) shown in fig. 2A, the metal clip 1 is assembled to the flat metal element by joining the first notch 3a to the outer edge of the flat metal element. The clip may be engaged manually or with a tool (e.g., a hammer). The pins 4 exert a pressing force on the flat metal element and, by scraping, their ends penetrate into the material of the metal element, which contributes to creating an electrical contact.
The fastening screws 5 can be inserted independently into the openings 8c and 8d and partially screwed onto the nuts 7 before or after the metal clip 1 is assembled with the flat metal element.
In a second step (referred to as an insertion step) shown in fig. 2B, the stripped end of the wire is manually inserted into the main opening 6 towards the entrance of the third notch 3 c. The wire may continue to advance, for example, until the insulating sheath abuts the main opening 6 (as shown in fig. 2C), or a portion of the wire protrudes from the entrance of the third recess 3C.
In the final step shown in fig. 2C, called the clamping step, once the wire is correctly positioned, the clamping screw 5 is screwed into the nut 7 to squeeze the wire between the fourth wing 2d and the third wing 2C. Thus, the electrical contact is maintained by the action of pressure by squeezing the wire between the third wing 2c and the fourth wing 2 d.
When screwed in, the fastening screw 5 penetrates into the intermediate recess 3b until it potentially touches the second wing 2b, depending on the depth and length of the screw 5 descent. The intermediate recess 3b is deformed to adjust the spacing between the second wing 2b and the third wing 2c, taking into account the length of the fastening screw 5 and the depth to which it is screwed.
If the second wing 2b is provided with an opening 8b, the end of the screw can be in contact with a metal element to improve the fixation of the clip and its electrical contact. In this case, the same phenomenon of flexible deformation of the intermediate recess just described may also occur.
After the clamping step is completed, and as shown in fig. 3, the wire is electrically contacted to the clip 1 between the third wing 2c and the fourth wing 2d, which have been brought together by means of the fastening screw 5 and the nut 7, and is held firmly in the clip 1.
The clip is also advantageous in that the wires can be easily disconnected from the clip 1 by simply unscrewing the fastening screws 5.
Of course, the invention is not limited to the described embodiments, and alternative embodiments may be provided within the scope of the invention as defined by the claims.
In particular, other securing means besides a clamping screw and nut may be used to bring the two wings closer together and capture the wire in the recess.

Claims (6)

1. A metal clip (1) for electrically connecting at least one wire to a flat metal element, wherein said metal clip is defined by four flat portions bent into a metal plate having an M-shaped cross-section, characterized in that it comprises:
-a first wing (2a) and a second wing (2b), said first wing (2a) and said second wing (2b) defining a fixing notch (3a), said fixing notch (3a) enabling the joining of said metal clip (1) to one edge of said flat metal element;
a third wing (2c) and a fourth wing (2d), said third wing (2c) and said fourth wing (2d) defining a clamping recess (3c), and each of said third wing (2c) and said fourth wing (2d) being provided with a first opening (8c) and a second opening (8d) respectively facing each other, wherein said clamping recess (3c) has a bottom provided with a main opening (6) so as to enable the insertion of an end of said wire, wherein said four flat portions are said first wing (2a), said second wing (2b), said third wing (2c) and said fourth wing (2 d); and
-fixing means (5, 7), said fixing means (5, 7) being constituted by a nut (7), said nut (7) cooperating with a fastening screw (5) inserted in a first opening (8c) of said third wing (2c) and in a second opening (8d) of said fourth wing (2d) to draw said third wing (2c) towards said fourth wing (2d) so as to be able to clamp said end of said wire between said fourth wing (2d) and said third wing (2c) and to create an electrical contact.
2. The metal clip (1) according to claim 1, characterized in that said second wing (2b) is provided with a third opening (8b), said third opening (8b) being positioned opposite said first opening (8c) of said third wing (2c) and said second opening (8d) of said fourth wing (2d) to receive an end portion of said fastening screw (5) to bring said end portion of said fastening screw (5) into contact with said flat metal element.
3. Metal clip (1) according to claim 1 or 2, characterized in that said first wing (2a) and/or said second wing (2b) are provided with at least one cut-out forming a resilient pin (4) oriented towards the inside of said fixing notch (3a) to improve the attachment of said metal clip (1) to said flat metal element and to improve said electrical contact.
4. The metal clip (1) according to claim 1 or 2, characterized in that said nut (7) is arranged in an intermediate recess (3b) formed by said second wing (2b) and said third wing (2 c).
5. Metal clip (1) according to claim 1 or 2, characterized in that said nut (7) is constituted by the thickness of said third wing (2c), said third wing (2c) then constituting a nut thread.
6. The metal clip (1) according to claim 1 or 2, characterized in that said fourth wing (2d) has lateral fins (9) inclined towards said third wing (2c) to retain said wire inside said clamping recess (3c) upon insertion.
CN201920894075.7U 2018-06-15 2019-06-13 Metal clip for electrically connecting a conductor to a metal element Active CN210120249U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
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

Publications (1)

Publication Number Publication Date
CN210120249U true CN210120249U (en) 2020-02-28

Family

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Application Number Title Priority Date Filing Date
CN201920894075.7U Active CN210120249U (en) 2018-06-15 2019-06-13 Metal clip for electrically connecting a conductor to a metal element

Country Status (7)

Country Link
EP (1) EP3807956B1 (en)
CN (1) CN210120249U (en)
ES (1) ES2924918T3 (en)
FR (1) FR3082669B1 (en)
PL (1) PL3807956T3 (en)
PT (1) PT3807956T (en)
WO (1) WO2019239024A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9611652B2 (en) 2011-02-25 2017-04-04 Dustin M. M. Haddock Mounting device for building surfaces having elongated mounting slot
WO2013101597A1 (en) 2011-12-29 2013-07-04 Haddock Dustin M M Mounting device for nail strip panels
WO2018023016A1 (en) 2016-07-29 2018-02-01 Haddock Dustin M M Trapezoidal rib mounting bracket with flexible legs
US10640980B2 (en) 2016-10-31 2020-05-05 Rmh Tech Llc Metal panel electrical bonding clip
NZ764108A (en) 2017-10-09 2022-08-26 Rmh Tech Llc Rail assembly attachable to a building surface
AU2019240320B2 (en) 2018-03-21 2022-10-13 Rmh Tech Llc PV module mounting assembly with clamp/standoff arrangement
CN113412396A (en) 2018-12-14 2021-09-17 Rmh技术有限责任公司 Mounting device for nail belt panel
GB2592263A (en) * 2020-02-24 2021-08-25 Linian Lab Ltd Fastening device
CN115917095A (en) 2020-03-16 2023-04-04 Rmh技术有限责任公司 Mounting device for metal roof
US11041310B1 (en) 2020-03-17 2021-06-22 Rmh Tech Llc Mounting device for controlling uplift of a metal roof
DE102021128125A1 (en) * 2021-10-28 2023-05-04 Helu Kabel Gmbh Grounding clamp and connection arrangement
US20230204343A1 (en) * 2021-12-27 2023-06-29 Hamilton Sundstrand Corporation Method of detecting coating wear

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2694141B1 (en) 1992-07-23 1994-08-19 Cit Alcatel Self-stripping clip for grounding a cable.
CN102598421B (en) * 2009-09-29 2015-06-24 理想工业公司 One-piece conductive clip for push-in wire connector
FR2975835B1 (en) 2011-05-24 2014-05-16 Raymond A & Cie GROUND CLIP AND EARTH ASSEMBLY
FR3036857B1 (en) * 2015-06-01 2017-07-07 A Raymond Et Cie METAL CLIP FOR THE ELECTRICAL CONNECTION OF A CONDUCTIVE WIRE TO A METALLIC ELEMENT

Also Published As

Publication number Publication date
EP3807956A1 (en) 2021-04-21
FR3082669A1 (en) 2019-12-20
FR3082669B1 (en) 2021-09-03
EP3807956B1 (en) 2022-06-22
WO2019239024A1 (en) 2019-12-19
PL3807956T3 (en) 2022-09-26
PT3807956T (en) 2022-08-22
ES2924918T3 (en) 2022-10-11

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