WO2017103396A1 - Bornier étau pour raccorder deux cosses ensemble et connexion associée - Google Patents
Bornier étau pour raccorder deux cosses ensemble et connexion associée Download PDFInfo
- Publication number
- WO2017103396A1 WO2017103396A1 PCT/FR2016/053314 FR2016053314W WO2017103396A1 WO 2017103396 A1 WO2017103396 A1 WO 2017103396A1 FR 2016053314 W FR2016053314 W FR 2016053314W WO 2017103396 A1 WO2017103396 A1 WO 2017103396A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lugs
- terminal block
- barrel
- plate
- terminal
- Prior art date
Links
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
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
- H01R9/24—Terminal blocks
- H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
- H01R9/2616—End clamping members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
-
- 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
- H01R13/02—Contact members
- H01R13/22—Contacts for co-operating by abutting
-
- 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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/62933—Comprising exclusively pivoting lever
Definitions
- the invention relates to connectors or terminations electrical power connections. More particularly, the invention relates to a terminal block clamping a lug of a power cable to a second lug for electrically together.
- Power supply cables are connected to the other cables or electrical elements by means of electrical lugs provided at the termination of each cable.
- Tubular lugs that is to say of the type with a tubular shaft for connection to the cable and a flat surface substantially parallel to the shaft with a central hole, are frequently used.
- Such a traditional lug is connected to the other elements via a terminal block comprising a stud on which the lug slot is placed and a nut tightened on the stud.
- the lugs of two cables are laid either on two different studs electrically connected to the same terminal block, or on the same stud, then are secured together.
- Twisting is very likely when traveling a cable in a structure such as a section of an aircraft.
- the lug must be oriented around the cable so that the hole in the range aligns with the terminal block stud.
- the orientation change which may be necessary up to 180 ° to allow its connection, is particularly difficult.
- connections described above have a significant risk of being the cause of foreign body damage (or FOD for "Foreign Object Damage” in English).
- FOD Foreign Body Damage
- the lug is of the type comprising a shank which extends along an axis substantially centrally for connection to an electric cable and a range connected to said shank extending radially with respect to said shank, said shank having, on the side opposite where is said barrel, an electrical contact surface substantially normal to said axis to be in electrical contact with an electrical element.
- a cable with such a lug may be electrically connected together to a second cable with such lug by placing the electrical contact surfaces of the lugs vis-à-vis. No axial orientation is required, since the lugs have a frontal electrical contact surface, i.e. in the direction of the axis.
- the objective of the present invention is therefore to provide a terminal block which is adapted to receive two lugs of the type described above such that their electrical contact surfaces are vis-à-vis and substantially aligned when the terminal block clamps the pods together to connect two cables together.
- Another objective is to provide a terminal block that is simple to use, and has a significantly reduced likelihood of being the cause of a FOD or being subjected to FOD.
- the present invention thus proposes a clamping terminal block for electrically connecting a pair of lugs by clamping against each other, each lug being of the type comprising a shank which extends along an axis substantially centrally and a range.
- the clamp terminal comprising two opposite plates and a clamping system for moving the two plates towards each other, characterized in that each plate comprises a slot for receiving one of said terminals so that the range of the terminal is substantially on one side of the plate and between the two opposite plates, while the shank is substantially on the other side of the plate, the clamp terminal further comprising means for supporting the pair of lugs so that their conical surfaces electrical tact are vis-à-vis and substantially aligned.
- said means for supporting the pods comprises the bottom of at least one slot which is adapted to support the shaft of at least one terminal.
- said means for supporting the terminals comprises means adapted to support the range of at least one terminal.
- each plate comprises three slots thus allowing three pairs of lugs to be connected.
- each slot extends from an edge of its respective plate.
- the clamping system comprises at least a portion protruding normally on the surface of the first plate, and at least one through opening on the second plate, the protruding portion extending through the opening and comprising a cam mounted on the projecting portion.
- the two plates comprise counterbores adapted to receive the pods of the pods.
- the terminal block vise further comprises an umbrella.
- connection comprising a terminal block as defined above, characterized in that the connection further comprises two lugs of the type comprising a shaft which extends along an axis substantially centrally and a range. connected to said barrel and extending radially relative to said barrel, said range having, on the opposite side where said barrel is located, an electrical contact surface substantially normal to said axis, the lugs being arranged with their electrical contact surfaces facing each other, the terminal block clamping the beaches of said two pods against each other to connect said pods and maintain their position.
- FIG. 1 shows a perspective view of a clamp terminal of the first embodiment
- FIG. 2 shows a perspective view of a connection with the clamp terminal of Figure 1 in which three pairs of lugs are posed vis-a-vis, the clamp terminal being in the open position;
- FIG. 3 shows a perspective view of a lug of the type shown in FIG. 2 in more detail
- FIG. 4 shows a perspective view from below and from the side of the connection of Figure 2, the clamp terminal being provided with an umbrella and being in the tight position;
- FIG. 5 shows a perspective view of a connection with a clamp terminal according to a variant, the clamp terminal being in the open position
- Figure 6 shows the connection of Figure 5, the clamp terminal being provided with an umbrella and being in the tight position.
- Figure 1 shows a terminal block 50 according to a first embodiment of the invention for the support of two lugs 10 ( Figure 3) against each other.
- the clamp terminal 50 is adapted to receive and connect three pairs of lugs 10, yet it can be designed to connect more or fewer cables.
- the clamping terminal block 50 comprises two opposed substantially rectangular plates 51, 52 which can move towards each other to clamp the lugs 10.
- a first plate 51 is intended to be fixed, here called a “fixed plate”, while the second plate 52 is intended to be moved relative to the first plate 51, and is therefore called here "movable plate”.
- the two plates 51, 52 are of the same size, substantially flat, about the same thickness, and are preferably of insulating material (non-electrically conductive).
- the fixed plate 51 has three slots 61 that descend vertically from the upper edge towards the inside of the plate 51 to receive lugs 10 of the cables 25. It further comprises four projections 54 from the surface of the fixed plate 51 which faces the movable plate 52.
- the projecting portions 54 extend substantially normal to the surface of the fixed plate 51, and are each U-shaped, more precisely in the form of a round bar defining a U with the two arms of the U connected to each other. to the fixed plate 51 and the base of the U located at a distance from the fixed plate.
- These projections 54 are intended to support cams 56 and at the same time to guide the movement of the movable plate 52.
- Two mounting brackets 53 with a central hole are attached to the fixed plate (one on the left and one on the right), which mounting brackets 53 allow the fixed connection to a structure, for example on a stiffener in a section of a plane.
- the movable plate 52 in turn has three slots 62 descending vertically from the upper edge towards the inside of the plate to receive lugs 10 of the cables, which three slots 62 are respectively associated with those of the fixed plate 51.
- the movable plate 52 is also provided with four openings 55 through which are associated with the projecting portions 54 of the fixed plate 51.
- the two plates 51, 52 are arranged substantially parallel to each other and close to each other with the projections 54 of the fixed plate 51 s' extending through the through apertures 55 of the movable plate 52.
- the clamp terminal 50 is provided with a clamping system for clamping the two plates 51, 52 of the clamp terminal 50 against one another.
- the endings of the protrusions 54 that is to say the bases of the U, are each provided with a cam 56.
- the cams 56 are mounted so as to allow their rotation around the base of the U and thus allow to tighten or release the two plates 51, 52. They comprise a handle that allows their manual rotation between the open position (horizontal) and the locked position (downwards). The cams 56 exceed their maximum point just before reaching the locked position. This helps the clamping system stay in its locked position.
- the cams 56 are made in one piece. Preferably, they are mounted on the base of the U using additive manufacturing techniques or 3D printing ("3D printing" in English). It is also possible to make all the terminal block 50 using these techniques. Of course, other clamping means for the terminal block 50 can be considered instead of this cam clamping system.
- the movable plate 52 moves in translation, pushed by the cams 56 and guided by the projecting portions 54, towards the fixed plate 51, and the two plates 51, 52 are supported against each other to clamp with a uniform force the lugs 12 of the lugs 10 received in the terminal block 50 against one another.
- FIG. 2 comprising a terminal block 50 with three pairs of identical lugs 10.
- Each of the lugs 10 is crimped to its respective cable 25, and the three pairs are intended to be connected to form three complete cables (corresponding to the three phases of electricity).
- the lugs 10 are made of metal, for example aluminum or copper, but may be provided with a coating surrounding the entire outside of the pod apart from the electrical contact surface 13 which, in turn, is preferably treated (by nickel plating, or stripping) to ensure minimum contact resistance.
- the two lugs 10 of each pair are placed in the terminal block 50 with their electrical contact surfaces 13 facing each other in order to electrically connect their cable together in a straight line, for example to connect a power cable of a portion of a cable. plane to a cable of a next section.
- the clamp terminal 50 comprises three pairs of opposed slots 61, 62, ie three slots per plate.
- Each slot 61, 62 descends vertically from the upper edge of its plate 51, 52 to the same depth, about halfway up the plate 51, 52, and ends with a bottom.
- the barrel 11 of each lug 10 abuts against the bottom of the slot 61, 62, and the lug 12 of the lug 10 is substantially on the side of the plate 51 52 facing the opposite plate 52, 51 (i.e. between the two plates), while the barrel 11 is substantially on the other side of the plate 51, 52.
- each opposite pair of lugs 10 has its two electrical contact surfaces 13 essentially aligned with each other.
- the terminal block 50 of the invention makes it easy to connect two lugs 10 of the type described, without requiring that the orientation of the lugs 10 be modified.
- FIG. 3 shows, in greater detail, the same lug 10 as those inserted in the terminal block 50 of the connection shown in FIG. 2, which lug 10 has a shape of the type described, but including other features in addition to which the make it in the form generally preferred for use with the terminal block 50.
- the range 12 extends radially relative to said shaft 11 substantially centrally on said axis, that is to say that the geometric center of the range 12 (seen in the direction of the axis) is on the axis.
- it is circular, as well as its electrical contact surface 13.
- the shaft 11 of the lug 10 is substantially cylindrical in shape.
- the tracks 12 are circular, the overlap area between the pads 12 of these two lugs 10 when they are opposite each other will remain the same, as well as the electrical conductivity (the density current A / mm 2 supportable for a given heating), regardless of the relative axial orientation of the two terminals 10.
- the shape of the shaft 11 of the terminal 10 plays a role in ensuring that the tracks 12 line up.
- the central axis of the barrel will remain in the same position regardless of the axial orientation of the barrel 11 when it is placed at the bottom of the slot 61, 62.
- the lugs 12 of the lugs 10 facing Vis-à-vis can thus be easily aligned coaxially and in total overlap by putting the two drums 11 at the bottom of their slots 61, 62 where they will be coaxial.
- the clamp terminal 50 can receive and connect lugs for which the shape of the range is not circular, for example of a square shape.
- the overlap between the electrical contact surfaces of two such identical terminals presented opposite each other, even if the areas are centered and aligned on the same axis, will change according to the relative angular orientation of the two terminals.
- the change in overlap area implies a change in current carrying capacity, and the resistance of the connection.
- lugs 10 with circular shaped areas 12 are generally preferred for use with this clamp terminal 50.
- the terminal block 50 can be designed to support the lug pads 12 instead of the shank 11. This can especially when the beaches 12 are round.
- the clamp terminal may be adapted to receive the lugs with a non-flat surface, but may include, for example, a rounded surface on the side opposite to the electrical contact surface to reinforce it. It can be seen that there is only a small gap between the two plates 51, 52 in the open position. This not only helps to keep the lugs 10 inserted in the terminal block 50 in their position, and also prevents an installer from trying to connect two sub-length cables by clamping them together. Moreover, since the plates 51, 52 move in translation when the clamp terminal 50 is tightened, the forces experienced by the cables are mainly axial and the lugs 10 are therefore less likely to exit their slot 61, 62. Therefore, the lugs 10 of the cables can be inserted in their good position vis-à-vis, then the clamp terminal 50 is tightened.
- the terminal block 50 is clamped by its cam clamping system, the electrical contact surfaces 13 of the two lugs 10 are supported against each other to guarantee conductivity with low electrical resistance.
- the clamping also serves to resist against static forces and vibratory effects, by preventing relative movement between the lugs 10, and between the lugs 10 and the clamp terminal block 50.
- FIG. 4 illustrates the same connection 100 as in FIG. 2, with the cams
- a beta pin 59 is used.
- the beta pin 59 passes through the holes provided on the cam sleeves and the attachment points on the clamp terminal 50 in an interlaced manner, and is then secured, in turn, so that it does not come off.
- An umbrella 70 is used to reduce the risk of being affected by FOD. It comprises a rectangular horizontal plate 71, a central plate 72 extending in the direction of the length of the rectangular plate 71 and downwards, intended to be clamped by the clamp terminal 50, and some side plates 73 extending into the direction of the width of the rectangular horizontal plate 71 and down.
- the umbrella 70 serves, to some extent, to physically isolate the three lugs 10 by forming a small partition wall around each lug 10 to prevent an object, or even a liquid, from falling on the connection 100 and thus not cause a short circuit. It is clipped to the terminal block 50. Apart from protecting the connection 100, it also serves to prevent that the lugs 10 do not come out of the slots 61, 62.
- the umbrella 70 is preferably also of insulating material, and can be connected to the terminal block 50 if necessary.
- FIG. 5 illustrates a connection 200 comprising a variant of a clamp terminal block 80 generally similar to that described previously, but with several modifications.
- the fixed plate 81 is more substantial, having a mounting bracket 83 in the form of a base plate, and side plates 90.
- the clamping system comprises four cams 86, but this time only two of the cams 86 are provided with sleeves allowing their manual rotation. However, the cams 86 are all connected in rotation by a bar 87, and thus the actuation of the two cams 86 provided with handles actuate the four cams 86.
- the plates 81, 82 include ribs 84 and cooperating grooves 85 on their sides that face the opposite plate.
- these opposite sides of the plates 81, 82 are provided with countersinks 93 adapted to receive the lugs 12 of the lugs 10, countershafts 93 being circular and provided around the bottom of each slot 91, 92. This prevents the lugs 10 does not slide along their slot 91, 92.
- the edges of these countersinks 93 also help to support the beaches 12 so that they align.
- two pins 89 are used (one on the left and one on the right) to securely secure the cams 86.
- FIG. 6 illustrates the connection 200 of FIG. 5 with an umbrella 95 placed on the top of the clamp terminal block 80.
- the umbrella 85 comprises a horizontal plate 96 and side plates 97. It also comprises formations for engagement with formations. complementary to the fixed plate 81 of the terminal block 80. In this case, two vertical rods 98 on the umbrella are slid into the corresponding grooves 94 on the fixed plate 81.
- the umbrella 95 is secured to the terminal block 80 by fixing pins 99 on studs 88 provided on the fixed plate 81.
- clamping systems may be suitable instead of the cam clamping systems described above to bring and tighten the two plates of the clamp terminal.
- a single cam system exerting a force along the entire length of the terminal block can be considered.
- the two plates of the terminal block can be connected by quick quarter turn fasteners, or another clamping system.
- the clamp terminal can receive and connect the lugs of the type described but with the range connected to the drum in a non-centered manner, in other words, with its geometric center not on the axis.
- lugs having their centrally connected ranges are preferable in practice and for connection reliability.
- the two plates may be designed to pivot relative to each other, for example connected along their lower edge.
- the terminal block can also be designed to connect more or fewer cables depending on the installation, for example with only two pairs of opposite slots for the two DC voltage cables.
- the invention is not limited to the field of aircraft, but may also be suitable for other areas of construction in sections or modulated such as ships, the building, or generally any area where a cable must be connected to an electrical element .
Landscapes
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Connection Or Junction Boxes (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP16825818.4A EP3391472B1 (fr) | 2015-12-17 | 2016-12-09 | Bornier étau pour raccorder deux cosses ensemble et connexion associée |
US16/061,404 US10396475B2 (en) | 2015-12-17 | 2016-12-09 | Vice-type terminal block for interconnecting two thimbles and associated connection |
CN201680073857.3A CN108432054B (zh) | 2015-12-17 | 2016-12-09 | 用于互连两个套管的钳型接线盒以及相关的连接件 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1562595A FR3045959B1 (fr) | 2015-12-17 | 2015-12-17 | Bornier etau pour raccorder deux cosses ensemble et connexion associee |
FR1562595 | 2015-12-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017103396A1 true WO2017103396A1 (fr) | 2017-06-22 |
Family
ID=55646745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2016/053314 WO2017103396A1 (fr) | 2015-12-17 | 2016-12-09 | Bornier étau pour raccorder deux cosses ensemble et connexion associée |
Country Status (5)
Country | Link |
---|---|
US (1) | US10396475B2 (fr) |
EP (1) | EP3391472B1 (fr) |
CN (1) | CN108432054B (fr) |
FR (1) | FR3045959B1 (fr) |
WO (1) | WO2017103396A1 (fr) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB262216A (en) * | 1925-10-05 | 1926-12-09 | Thomas Graham Farish | Improvements in electrically connecting electrical devices |
FR2048122A6 (fr) * | 1969-06-02 | 1971-03-19 | Dumesnil Gerard | |
DE19910021A1 (de) * | 1999-03-08 | 2000-09-14 | Delphi Tech Inc | Verriegelbarer Steckverbinder |
FR2969367A1 (fr) * | 2010-12-17 | 2012-06-22 | Schneider Electric Ind Sas | Appareil de coupure electrique |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL130056C (fr) * | 1959-02-09 | |||
NL286794A (fr) * | 1961-12-18 | |||
US5273464A (en) * | 1992-09-30 | 1993-12-28 | Rushing John A | Strip connector for multiple leads |
FR2759314B1 (fr) * | 1997-02-11 | 1999-05-07 | Virax Sa | Dispositif d'etau |
US6794576B1 (en) * | 2002-06-04 | 2004-09-21 | Cisco Technology, Inc. | Power entry apparatus and method |
US7896712B2 (en) * | 2005-12-22 | 2011-03-01 | Tensolite, Llc | Integral bonding attachment |
US7462061B2 (en) * | 2006-06-23 | 2008-12-09 | Electric Motion Company, Inc. | Connector for locate wires |
CN103117461B (zh) * | 2013-01-15 | 2015-08-26 | 长园共创电力安全技术股份有限公司 | 地线锁装置 |
US9166312B2 (en) * | 2014-03-14 | 2015-10-20 | Raycap, S.A. | Terminal block assemblies and printed circuit board assemblies including same |
EP2950399B1 (fr) * | 2014-05-27 | 2018-02-28 | Nexans | Etanchéification de l'emplacement de liaison entre deux conducteurs |
-
2015
- 2015-12-17 FR FR1562595A patent/FR3045959B1/fr active Active
-
2016
- 2016-12-09 US US16/061,404 patent/US10396475B2/en active Active
- 2016-12-09 CN CN201680073857.3A patent/CN108432054B/zh active Active
- 2016-12-09 EP EP16825818.4A patent/EP3391472B1/fr active Active
- 2016-12-09 WO PCT/FR2016/053314 patent/WO2017103396A1/fr active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB262216A (en) * | 1925-10-05 | 1926-12-09 | Thomas Graham Farish | Improvements in electrically connecting electrical devices |
FR2048122A6 (fr) * | 1969-06-02 | 1971-03-19 | Dumesnil Gerard | |
DE19910021A1 (de) * | 1999-03-08 | 2000-09-14 | Delphi Tech Inc | Verriegelbarer Steckverbinder |
FR2969367A1 (fr) * | 2010-12-17 | 2012-06-22 | Schneider Electric Ind Sas | Appareil de coupure electrique |
Also Published As
Publication number | Publication date |
---|---|
US10396475B2 (en) | 2019-08-27 |
FR3045959B1 (fr) | 2017-12-22 |
US20180309212A1 (en) | 2018-10-25 |
CN108432054A (zh) | 2018-08-21 |
FR3045959A1 (fr) | 2017-06-23 |
CN108432054B (zh) | 2020-04-07 |
EP3391472B1 (fr) | 2020-02-05 |
EP3391472A1 (fr) | 2018-10-24 |
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