EP3323175B1 - An mehrere kabel mit schutz gegen schäden durch fremdkörper anschliessbare elektrische verbindungsvorrichtung - Google Patents

An mehrere kabel mit schutz gegen schäden durch fremdkörper anschliessbare elektrische verbindungsvorrichtung Download PDF

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Publication number
EP3323175B1
EP3323175B1 EP16748333.8A EP16748333A EP3323175B1 EP 3323175 B1 EP3323175 B1 EP 3323175B1 EP 16748333 A EP16748333 A EP 16748333A EP 3323175 B1 EP3323175 B1 EP 3323175B1
Authority
EP
European Patent Office
Prior art keywords
terminal block
connection point
busbar
cable
insulator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16748333.8A
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English (en)
French (fr)
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EP3323175A1 (de
Inventor
Benjamin BOISNIER
Philippe Pierre AVIGNON
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safran Electrical and Power SAS
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Safran Electrical and Power SAS
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.)
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Publication date
Application filed by Safran Electrical and Power SAS filed Critical Safran Electrical and Power SAS
Publication of EP3323175A1 publication Critical patent/EP3323175A1/de
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Publication of EP3323175B1 publication Critical patent/EP3323175B1/de
Active legal-status Critical Current
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • H01R9/223—Insulating enclosures for terminals
    • 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
    • H01R11/12—End pieces terminating in an eye, hook, or fork
    • 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
    • H01R13/44—Means for preventing access to live contacts
    • H01R13/447—Shutter or cover plate
    • 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
    • H01R4/34—Conductive members located under head of screw
    • 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

Definitions

  • the invention relates to the field of electrical power connection, and more specifically to the field of terminal blocks associated with busbars to allow several elements to be connected to the terminal block of the electrical power connection.
  • the invention relates to an electrical connection device comprising an assembly of a terminal block and a set of bars for connecting separately to the lugs of two electrical cables, and ideally to other electronic equipment as well.
  • Electrical connection assemblies combining terminal blocks and busbars are found in many industries, and particularly in those associated with the field of electricity and power connection. Such assemblies are used to connect a busbar to an electrical structure, for example an electrical cable, and potentially to other electronic equipment at the same time.
  • the second cable can be a control cable connected to a connection between a busbar and a power cable to monitor the connection between the two and being linked to control equipment such as a contactor.
  • control equipment such as a contactor.
  • the patent FR 2 786 612 B1 offers a set of a terminal block and a busbar, where the terminal block has two separate connection points to receive two cables.
  • the terminal block has two separate connection points to receive two cables.
  • this terminal block has a fairly large width and takes up a lot of space.
  • WO2008 / 152069 A1 describes an assembly of an electrical connection device comprising terminal blocks intended to be connected to the busbar and an insulator.
  • the document FR2715775 A1 describes an assembly of an electrical connection device and an insulator showing a first type of insulator with the walls extending parallel to the first terminal blocks but having a height less than that of the terminal blocks, and a second type of insulator with a vertical boss in the form of a chimney with walls whose height is greater than the height of the terminal blocks.
  • the object of the present invention is therefore to remedy the aforementioned needs and drawbacks by proposing an electrical connection device comprising an assembly of a terminal block and a busbar adapted for better connection between the busbar and the busbars. cables, and that doesn't take up much space.
  • Another object is to provide an electrical connection device comprising fewer parts, which is simple. to be installed, and having anti-FOD characteristics, that is to say having a significantly reduced probability of being the cause of an FOD or of being subjected to an FOD, the anti-FOD characteristics being, particularly in the aviation sector, highly sought after.
  • the present invention thus provides an assembly of an electrical connection device and an insulator comprising an electrical connection device and an insulator, the electrical connection device comprising an assembly of a terminal block and a set of bars suitable for connect to the lugs of two cables, the terminal block comprising a first connection point to receive the lug of a first cable and a second connection point to receive the lug of a second cable, the second connection point of the terminal block being at proximity to and offset from the first connection point substantially in the direction of a first axis of the terminal block, the connection points being positioned such that when the cables are both connected substantially parallel to the axis of the terminal block, the second cable or its terminal prevents access to the first connection point, the terminal block being arranged in a first part of the insulator provided with a bottom and walls, the walls are extinguished ndant substantially parallel to the first axis of the terminal block and close to each side of the terminal block, characterized in that the walls extend to a height greater than that of the terminal block.
  • the second connection point of the terminal block is furthermore offset substantially in the direction of a second axis perpendicular to said first axis of the terminal block.
  • the second connection point is offset horizontally and vertically from the first connection point, being further away from and higher up from an end of the terminal block than the first connection point, the first connection point being adapted to receive a terminal of a control cable, and the second connection point being adapted to receive a terminal of a power cable.
  • the terminal block comprises a third connection point for receiving a contactor, the third connection point being offset substantially in the direction of the first axis of the terminal block, and substantially in the direction of the second axis of the terminal block, being further away and more top of a terminal block termination as the second connection point.
  • the electrical connection device further comprises a busbar connected to the terminal block, a terminal of a control cable connected to the first connection point and a terminal of a power cable connected to the second connection point, the cables both being connected substantially parallel to the first terminal block, the power cable or its terminal preventing access to the first connection point.
  • the busbar is arranged in a second part of the insulator provided with a bottom and walls, the walls extending substantially parallel to the busbar and close to each side of the busbar and s' extending to a height greater than that of the busbar, in which the first part of the insulator is disposed on the second part, and a cover is secured on the first part of the insulator to nest the device.
  • the figure 1 illustrates a first embodiment of several electrical connection devices 100, each comprising an assembly of a terminal block 10 and a busbar 12 which is connected to a terminal 20 of an electric power cable 25 and a terminal 24 to an electric control cable 29 to monitor the connection, and also to a contactor 45.
  • the electric connection devices 100 are arranged in an insulator 30.
  • the terminal block 10 extends along a first axis substantially parallel to the direction in which the power cables 25 extend, between a first termination and a second termination.
  • the control cable 29 is connected to a first connection point 6 near the first termination of the terminal block (towards the right of the figure), and the power cable 25 is connected to a second connection point 7 approximately in the middle of the two terminal block terminations.
  • the terminal 24 of the control cable 29 is not clearly visible in this figure 1 because it is located below the power cable 25.
  • the contactor 45 is connected to the terminal block 10 at a third connection point 8 near the second termination (towards the left of the figure). Finally, the terminal block 10 is placed in contact with a busbar 12.
  • the figure 2 illustrates the same electrical connection devices 100 as those of the figure 1 . However, the power cables 25 and the contactor 45 are not shown for reasons of clarity.
  • connection points 6, 7 for the cable lugs are offset substantially in the direction of the first axis of the terminal block 10 and substantially in the direction of a second axis perpendicular to the first axis.
  • a third connection point 8 is also provided for connecting a contactor 45 or a electronic equipment, which is still offset substantially in the direction of the first axis of the terminal block 10 and substantially in the direction of the second axis perpendicular to the first axis.
  • the offset of the connection points in the direction of the first axis of the terminal block which is a horizontal offset in this case, allows, to some extent, the cables to be connected there parallel and close to each other.
  • the offset of the connection points in the direction perpendicular to the first axis which is a vertical offset in this case, further serves to accommodate the thickness of the cables and their terminal, and allows the cables to be terminated one at a time. the other.
  • connection points 6, 7, 8 include a hole suitable for receiving a fixing element 16, 17, 18, for example a screw, but they can take other forms.
  • the holes 6, 7, 8 are essentially located on the same side of the terminal block 10, or more precisely, on the trays 13, 14, 19 at different levels on the same side and which are oriented upwards, in a direction substantially perpendicular to the first axis of terminal block 10.
  • the terminals 20, 24 here, in turn, are of the type with a flat termination 22, 27 offset slightly from the axis of the cable 25, 29 and provided with a hole 23, 28. Since the power cable and its terminal conduct more current, they are typically wider than the control cable and its terminal.
  • the electrical control cable 29 is first secured to the terminal block, then the power cable 25 is secured.
  • the flat termination 22, 27 of the cable lug is placed on the tray 13, 14 of the terminal block until the holes line up and it is secured there with a screw 16, 17.
  • Other types of fasteners can be envisaged, and also other types of lugs.
  • the power cable 25 or its terminal 20 prevents the control cable 29 from being disconnected.
  • the power cable 25 or its terminal 20 covers the screw 16 securing the control cable 29 from above, and therefore limits or prevents access to the screw 16 from above. If the control cable 29 is to be disconnected, it is necessary that the power cable 25 be in a position where it does not cover the screw 16, typically disconnected from its connection point 7. However, the power cable 25 can be disconnected without requiring the control cable 29 to be undone as well. Furthermore, this vertical installation of the cables 25, 29 takes up less surface space.
  • the figure 3 shows an exploded view of the electrical connection device 100 and of the insulator 30 in which it is placed, and the figure 4 shows a sectional view of the electrical connection device 100.
  • These figures aim to show the assembly of the terminal block 10 relative to the busbar 12 and the terminals 20, 24, and also anti-FOD characteristics, that is to say features to prevent, as much as possible, that the device becomes damaged by a foreign body or is the cause of damage by a foreign body.
  • the terminal block 10 further comprises two cylindrical vertical feet 2, each having a through hole 5 in a centered manner. These feet 2 are placed in electrical contact on the busbar 12. Two screws 15 are inserted into the holes in the feet to secure the terminal block 10 against the busbar 12.
  • the electrical connection device 100 is ideally placed in an insulator 30 which is, in general, an insulating box provided at the connection to protect it and to prevent the latter, or its conductive parts, from being exposed.
  • the insulator 30 is supplied in two main parts 34, 38.
  • a first part 34 is intended mainly for the terminal block and the cable lugs, while a second part 38 is intended mainly for the busbar.
  • the first part 34 is placed on the second part 38.
  • the first part 34 is provided with a bottom 31 and walls 32 on each side of the terminal block 10, and very close to the sides of the latter. These walls rise substantially vertically to a height greater than that of the terminal blocks 10.
  • the walls 32 extend essentially along the connection, that is to say substantially parallel and along the terminal block 10 and the terminal 20, 24.
  • the bottom 31 comprises the openings 33 adapted to receive the cylindrical feet 2 of the terminal block through them.
  • the second part 38 of the insulator 30 has, in turn, a bottom 35 and walls 36 on each side of the busbar. These walls 36 rise substantially vertically to a height greater than that of the busbars 12.
  • the walls 36 extend essentially along the length of the busbar 12, that is to say substantially parallel and along the length of the busbar 12. of the busbar 12, at least in the vicinity of the connection.
  • the bottom 35 includes holes 37 adapted to receive the two screws 15 to secure the terminal block 10.
  • the second part 38 is first mounted on a structure, for example a NIDA composite panel 58, with its holes 37 aligning with those provided on the panel 58.
  • the game of bars 12, also provided with holes 11, is then placed in the insulator 30 or in its compartment in the latter.
  • the first part 34 of the insulator 30 is then mounted on the second part 38, and there may be cooperating formations such as a recess or clips allowing engagement between them. This vertical assembly saves the surface space on the panel 58.
  • the terminal block 10 is then introduced from above with its feet 2 passing through the opening 33 on the bottom 31 of the first part 34 until they touch the busbar 12.
  • Two screws 15 are then inserted in holes 5 on the terminal block. These screws 15 pass through the terminal block, the first part 34 of the insulator, the busbar 12, the second part of the insulator 38 and secure to the composite panel 58 to connect all the parts together at once.
  • the terminal 24 of the control cable 29 is connected with a screw 16 to the first connection point 6 on the terminal block 10, and the terminal 20 of the power cable 25 is connected with a screw 17 to the second connection point 7.
  • the terminal block 10 is designed to receive the power terminal 20 in a position where it will prevent the screws 16 for the terminal 24 of the control cable 29 and the screws 15 for the terminal block 10 from being accessible, and at the same time, prevents that these screws 15, 16 do not come out of their holes 5, 6 in case they unscrew. In the event that a screw is unscrewed, it abuts against the terminal 20 which would then prevent it from coming out completely and separating from the device.
  • a contactor 45 can be installed and connected to terminal block 10 using a screw 18, possibly before the cables 25, 29 are connected. Such a contactor can also be connected to other terminal blocks or contactors. Of course, other contactors can be connected to the control cable (instead of the contactor shown).
  • Each terminal block 10 and each busbar 12 are thus in the insulator 30, or essentially in its own compartment in the insulator 30.
  • the insulator 30 is made of an insulating composite material.
  • the insulator 30 can be incorporated with a cover (not shown) to fit the electrical connection devices 100.
  • the invention therefore allows a connection between a set of a terminal block and a busbar with two cables and their terminal which are in parallel and slightly above each other, and also allows a terminal of one cable to be removed without requiring the other to be removed as well.
  • the invention further has anti-FOD characteristics, in that it is designed of few parts, and prevent screw loss and protect the terminal block and connection.
  • the terminal block can be designed with another connection point to secure a lug of another cable on top of the other two and prevent access to the second connection point.
  • the expression "the direction of the axis” does not necessarily mean that the direction is along the same axis, but can be along a parallel axis deviating in the same direction.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Claims (6)

  1. Anordnung aus einer elektrischen Verbindungsvorrichtung und einem Isolator, die eine elektrische Verbindungsvorrichtung (100) und einen Isolator (30) umfasst, wobei die elektrische Verbindungsvorrichtung (100) eine Anordnung aus einer Klemmleiste (10) und einer Sammelschiene (12) aufweist, die sich mit den Kabelschuhen (20, 24) von zwei Kabeln (25, 29) verbinden kann, wobei die Klemmleiste (10) eine erste Anschlussstelle (6) zur Aufnahme des Kabelschuhs (24) eines ersten Kabels (29) und eine zweite Anschlussstelle (7) zur Aufnahme des Kabelschuhs (20) eines zweiten Kabels (25) aufweist, wobei sich die zweite Anschlussstelle (7) der Klemmleiste (10) in der Nähe und versetzt zu der ersten Anschlussstelle (6) im Wesentlichen in Richtung einer ersten Achse der Klemmleiste (10) befindet, wobei die Anschlussstellen (6, 7) derart positioniert sind, dass, wenn die beiden Kabel (25, 29) im Wesentlichen parallel zur ersten Achse der Klemmleiste (10) angeschlossen sind, das zweite Kabel (25) oder dessen Kabelschuh (20) den Zugang zur ersten Anschlussstelle (6) verhindert, wobei die Klemmleiste (10) in einem ersten Teil (34) des Isolators (30) angeordnet ist, der mit einem Boden (31) und Wänden (32) versehen ist, wobei die Wände (32) im Wesentlichen parallel zur ersten Achse der Klemmleiste (10) und in der Nähe jeder Seite der Klemmleiste (10) verlaufen, dadurch gekennzeichnet, dass sich die Wände (32) in einer größeren Höhe als der der Klemmleiste (10) erstrecken.
  2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, dass die zweite Anschlussstelle (7) der Klemmleiste (10) außerdem im Wesentlichen in Richtung einer zweiten Achse versetzt ist, die senkrecht zur ersten Achse der Klemmleiste (10) verläuft.
  3. Anordnung nach Anspruch 2, dadurch gekennzeichnet, dass die zweite Anschlussstelle (7) waagerecht und senkrecht gegenüber der ersten Anschlussstelle (6) versetzt ist, indem sie weiter entfernt von einem und höher als ein Ende der Klemmleiste (10) als die erste Anschlussstelle (6) ist, wobei die erste Anschlussstelle (6) einen Kabelschuh (24) eines Steuerkabels (29) aufnehmen kann und die zweite Anschlussstelle (7) einen Kabelschuh (20) eines Leistungskabels (25) aufnehmen kann.
  4. Anordnung nach Anspruch 3, dadurch gekennzeichnet, dass die Klemmleiste (10) eine dritte Anschlussstelle (8) aufweist, um ein Schütz (45) aufzunehmen, wobei die dritte Anschlussstelle (8) im Wesentlichen in Richtung der ersten Achse der Klemmleiste (10) sowie im Wesentlichen in Richtung der zweiten Achse der Klemmleiste (10) versetzt ist, indem sie weiter entfernt von einem und höher als ein Ende der Klemmleiste (10) als die zweite Anschlussstelle (7) ist.
  5. Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie weiterhin eine mit der Klemmleiste (10) verbundene Sammelschiene (12), einen mit der ersten Anschlussstelle (6) verbundenen Kabelschuh (24) eines Steuerkabels (29) und einen mit der zweiten Anschlussstelle (7) verbundenen Kabelschuh (20) eines Leistungskabels (25) umfasst, wobei die beiden Kabel (25, 29) im Wesentlichen parallel zur ersten Achse der Klemmschiene (10) verbunden sind, wobei das Leistungskabel (25) oder dessen Kabelschuh (20) den Zugang zur ersten Anschlussstelle (6) verhindert.
  6. Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Sammelschiene (12) in einem zweiten Teil (38) des Isolators (30) angeordnet ist, der mit einem Boden (35) und Wänden (36) versehen ist, wobei die Wände (36) im Wesentlichen parallel zu der Sammelschiene (12) und in der Nähe jeder Seite der Sammelschiene (12) verlaufen und sich in einer größeren Höhe als der der Sammelschiene (12) erstrecken, in welcher der erste Teil (34) des Isolators (30) auf dem zweiten Teil (38) angeordnet ist, und dass eine Kappe auf dem ersten Teil (34) des Isolators (30) befestigt ist, um die Vorrichtung (100) einzuschließen.
EP16748333.8A 2015-07-16 2016-07-08 An mehrere kabel mit schutz gegen schäden durch fremdkörper anschliessbare elektrische verbindungsvorrichtung Active EP3323175B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1556706A FR3039008B1 (fr) 2015-07-16 2015-07-16 Dispositif de connexion electrique raccordable a plusieurs cables avec protection contre les dommages par corps etrangers
PCT/FR2016/051745 WO2017009557A1 (fr) 2015-07-16 2016-07-08 Dispositif de connexion électrique raccordable à plusieurs câbles avec protection contre les dommages par corps étrangers

Publications (2)

Publication Number Publication Date
EP3323175A1 EP3323175A1 (de) 2018-05-23
EP3323175B1 true EP3323175B1 (de) 2020-10-21

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EP16748333.8A Active EP3323175B1 (de) 2015-07-16 2016-07-08 An mehrere kabel mit schutz gegen schäden durch fremdkörper anschliessbare elektrische verbindungsvorrichtung

Country Status (5)

Country Link
US (1) US10158184B2 (de)
EP (1) EP3323175B1 (de)
CN (1) CN107851923B (de)
FR (1) FR3039008B1 (de)
WO (1) WO2017009557A1 (de)

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WO2017009557A1 (fr) 2017-01-19
EP3323175A1 (de) 2018-05-23
CN107851923A (zh) 2018-03-27
FR3039008B1 (fr) 2019-06-14
US20180212345A1 (en) 2018-07-26
CN107851923B (zh) 2020-05-19
FR3039008A1 (fr) 2017-01-20
US10158184B2 (en) 2018-12-18

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