EP3776738B1 - Anschlusselement, anordnung und energieverteilungssystem - Google Patents

Anschlusselement, anordnung und energieverteilungssystem Download PDF

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Publication number
EP3776738B1
EP3776738B1 EP19713749.0A EP19713749A EP3776738B1 EP 3776738 B1 EP3776738 B1 EP 3776738B1 EP 19713749 A EP19713749 A EP 19713749A EP 3776738 B1 EP3776738 B1 EP 3776738B1
Authority
EP
European Patent Office
Prior art keywords
region
conductor
connection
screw
connection element
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
EP19713749.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3776738A1 (de
Inventor
Sergej Eremin
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.)
Phoenix Contact GmbH and Co KG
Original Assignee
Phoenix Contact GmbH and Co KG
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 Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Publication of EP3776738A1 publication Critical patent/EP3776738A1/de
Application granted granted Critical
Publication of EP3776738B1 publication Critical patent/EP3776738B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2475—Connections using contact members penetrating or cutting insulation or cable strands the contact members penetrating the insulation being actuated by screws, nuts or bolts
    • H01R4/2483—Connections using contact members penetrating or cutting insulation or cable strands the contact members penetrating the insulation being actuated by screws, nuts or bolts penetrating the area under the screw tip
    • 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
    • H01R11/03—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 characterised by the relationship between the connecting locations
    • H01R11/09—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 characterised by the relationship between the connecting locations the connecting locations being identical

Definitions

  • connection element for connecting an insulated electrical conductor
  • connection element has a clamping sleeve body in which a receiving space for the electrical conductor is formed, and a connection screw having a screw head and a screw shaft, which can be inserted into the receiving space via an opening formed on the clamping sleeve body along an insertion direction of the connection screw.
  • the invention further relates to an arrangement with an insulating housing and at least one corresponding connection element, as well as an energy distribution system with several correspondingly designed arrangements arranged one behind the other.
  • Connection elements that have a clamping sleeve body and a connection screw are usually used to clamp a stripped conductor in an electrically contacting manner.
  • the stripped conductor is placed in the receiving space of the clamping sleeve body, with the receiving space extending transversely to the longitudinal extent of the opening for inserting the connection screw.
  • the connection screw When connected, the connection screw is inserted so far into the receiving space that it applies a compressive force to the stripped conductor positioned in the receiving space and thus forms an electrical contact between the exposed strands of the conductor and the connection screw and also the clamping sleeve body.
  • the connection screw should be made of a material that conducts electricity well.
  • connection elements of the prior art comprising a clamping sleeve body made of an electrically conductive metal material and a connection screw having a screw head and a screw shaft.
  • the invention is based on the object of providing a connection element, an arrangement and an energy distribution system in which even insulated conductors which are not stripped can be safely contacted.
  • connection element is characterized in that the receiving space has a first area and a second region, wherein the first region forms a support region for the conductor and the second region forms a press-in region into which a partial region of the conductor arranged in the first region is pressed by means of the connection screw in a connected state, wherein the second region has two opposing side walls against which strands of the conductor exposed by the pressing in of the conductor are in electrical contact in the connected state.
  • the receiving space provided in the clamping sleeve body for receiving the insulated conductor to be connected is now designed in such a way that it is made up of two areas.
  • a first area serves to actually support the insulated and therefore not stripped conductor that has been inserted into the receiving space.
  • the conductor is positioned exclusively in this first area.
  • This first area is followed by a second area of the receiving space in the direction of insertion of the connection screw, with the first area merging into the second area.
  • the second area forms a press-in area into which the conductor positioned in the first area is partially or partially pressed into this second area when connected using the connection screw, so that when the conductor is connected, a first part of the conductor is positioned in the first area of the receiving space and a second part of the conductor is positioned in the second area of the receiving space.
  • the shearing off of the insulating material sheath takes place in the area of the part of the conductor which is adjacent to the opposite side walls of the second area of the receiving space, so that the strands of the conductor exposed there by the shearing off can, when connected, make electrical contact with these side walls of the second area of the receiving space.
  • the electrical contacting of the connected conductor thus preferably takes place in the second area of the receiving space and preferably between the clamping sleeve body and the strands of the conductor exposed by the shearing off, so that contact between the strands of the conductor and the connection screw is not absolutely necessary, whereby the connection screw can also be made of a less conductive and thus less expensive material.
  • the shearing off The shearing of the conductor's insulating material sheath preferably takes place on a peripheral edge formed in the transition region between the first region and the second region, whereby the edge can preferably be sharp-edged.
  • the shearing of the conductor's sheath preferably takes place in a targeted manner on two opposite side surfaces of the conductor, which then each make contact with one of the two side walls of the second region of the receiving space.
  • the strands are preferably still surrounded by the insulating material sheath, even when connected.
  • the first area and the second area of the receiving space preferably have a different shape in order to be able to form an optimally shaped support area and press-in area.
  • the first area has a round cross-section and/or the second area has an elongated cross-section.
  • the first area, with its diameter extending transversely to the insertion direction of the connection screw, is preferably wider than the second area. If the first area has a round cross-section, optimal support of the conductor in the receiving area is ensured because the shape of the first area is adapted to the round cross-sectional shape of the conductor.
  • the second area is preferably not round, but preferably has an elongated shape, so that the second area can be designed in the form of a groove or a gap. Due to the elongated shape, which also preferably has a smaller width than the first area, the pressing in of the conductor and the resulting shearing of the insulating material sheath from the strands of the conductor can be carried out safely and precisely.
  • the second region can have a projection protruding into the second region on its base section opposite the first region.
  • the projection protruding into the second region allows this region to be compressed more strongly when the partial region of the conductor is pressed into the second region and the exposed strands of the conductor can be pressed with a higher force in the direction of the side walls of the second region of the receiving space, so that in the connected state the contact force of the strands resting on the side walls of the second region can be increased.
  • the projection is preferably arranged in the middle of the base section so that an even distribution of force can take place in the direction of the two side walls of the second region.
  • the projection is preferably web-shaped and can extend over the entire depth of the base section transversely to the insertion direction of the connecting screw.
  • the first region can have a length L1 extending in the direction of insertion of the connecting screw and the second region can have a length L2 extending in the direction of insertion of the connecting screw, wherein L2 is preferably ⁇ 1/2 L1.
  • the second region preferably has a length L2 that corresponds to 3/4 of the length L1 of the first region. Due to the relatively long design of the second region relative to the first region, the partial region of the conductor that is pressed into the second region of the receiving space can be pressed in even more compactly, so that the exposed strands can be pressed even more strongly in the direction of the side walls of the second region and the contact force between the side walls of the second region and the exposed strands can thereby be further increased.
  • the shearing of the insulating sheath from the strands when pressing the partial area of the conductor into the second area can be further improved by the screw shaft of the connecting screw having a diameter that is smaller than a width of the second receiving space extending transversely to the direction of insertion of the connecting screw. Due to the smaller diameter, the shearing effect can be increased, particularly at the edge in the transition area between the first and second areas and also at the side walls of the second area, which promotes shearing of the insulating sheath from the strands of the conductor and can therefore take place particularly well and in a defined manner in these areas.
  • the screw shaft has a tapered area in the direction of insertion of the connecting screw at its end section opposite the screw head.
  • the end section of the screw shaft can thus have a tip which can drill into the conductor when the conductor is connected and thus when the connecting screw is moved in the direction of insertion.
  • the connecting screw is moved further in the direction of insertion, the tapered area of the At the end section of the connection screw, the strands within the insulating material jacket are initially compressed and are thus pressed into the second area in a particularly compact manner and with a high force.
  • the strands exposed by the shearing that occurs can then be displaced in an even more targeted manner towards the side walls of the second area due to the tapered area in order to achieve a particularly good contact between the exposed strands and the side walls of the second area.
  • the tapered region has at least two stepped shoulders.
  • the stepped shoulders preferably extend around the entire circumference of the end section of the screw shaft.
  • the shoulders allow the strands of the conductor that come into contact with the end section of the conductor to be held on the shoulders and thus to be carried along in the insertion direction of the connection screw when the connection screw is screwed in further, which in turn allows the strands that are in contact with the side walls of the second region to be pressed more firmly against the side walls of the second region, so that the contact force acting there can be increased further.
  • the stepped shoulders can therefore improve the pressing of the conductor into the second region.
  • the two opposite side walls of the second region of the receiving space are designed to run at an angle to one another.
  • the side walls therefore preferably do not run parallel to one another, but can run at an angle of > 0° to one another.
  • the side walls are preferably designed to run at an angle to one another in such a way that they run towards one another in the direction of the bottom section of the second region.
  • the side walls running at an angle to one another can further improve the pressing of the partial region of the conductor into the second region, and the exposed strands can also be pressed against the side walls of the second region with an even higher contact force.
  • a slot-shaped recess can also be formed on each of the two opposite side walls of the second area.
  • the exposed strands resting on the side walls can be partially pressed into these recesses, whereby the contact force and thus the contact force of the strands on the side walls can be further increased and thus the electrical contact can be further improved.
  • a receiving area can be formed on the clamping sleeve body, on which a contact element can be arranged.
  • a device can be connected to the connection element via this contact element in an electrically contacting manner.
  • the receiving area can, for example, have holes in which the contact element can be fastened in order to be able to form an electrical contact between the clamping sleeve body and the contact element.
  • the contact element can be pressed into these holes.
  • Other fastenings of the contact element to the clamping sleeve body are also conceivable.
  • the contact element can, for example, be designed as a contact tulip.
  • the object according to the invention is further achieved by means of an arrangement which has an insulating housing in which at least one connection element designed and developed as described above is arranged, wherein the insulating housing has at least two opposite feedthrough openings for each connection element for the passage of the conductor arranged in the respective connection element.
  • the arrangement can preferably have several connection elements arranged next to one another, which can be arranged within the insulating housing.
  • an end cap is arranged on at least one of the two opposite feedthrough openings, which can have a boundary wall for each connection element for the conductor guided through the feedthrough opening.
  • the end cap can close the insulating housing on one side, so that an end section of a conductor is arranged in the insulating housing in a way that is safe from contact.
  • the end cap can have a boundary wall for this purpose, which can cover the open cross section of the end section of the conductor.
  • the end cap can, for example, be formed in one piece with the insulating housing. However, it is also possible for the end cap to be a separate part from the insulating housing, which can be attached to the insulating housing as required, for example by means of a snap-in connection.
  • the end cap is preferably made of a plastic material in the same way as the insulating housing.
  • the end cap can, for example, be formed in such a way such that it extends over and covers all feedthrough openings on one side of the insulating housing.
  • the end cap can be designed in such a way that the boundary wall of the end cap has a perforation for opening the boundary wall. At the perforation, a user can easily open the boundary wall using a knife if necessary in order to guide a conductor through the end cap.
  • the object according to the invention is achieved by means of an energy distribution system which has a plurality of arrangements arranged one behind the other, which are arranged spaced apart from one another along the length of at least one electrical conductor, wherein the arrangements can be designed and developed as described above.
  • Fig.1 shows a sectional view of a connection element 100 with a conductor 10 inserted into the connection element 100, which in Fig.1 is not yet connected in an electrically contacting manner.
  • the conductor 10 is an insulated conductor 10 in which the strands 11 are enclosed by an insulating sheath 12.
  • the connection element 100 has a clamping sleeve body 13 in which a receiving space 14 is formed for the conductor 10. To connect the conductor 10, it is inserted into this receiving space 14, as shown in Fig.1 can be seen.
  • the clamping sleeve body 13 is made of an electrically conductive metal material.
  • connection element 100 has a connection screw 15 having a screw head 16 and a screw shaft 17, which can be inserted into the receiving space 14 along an insertion direction R via an opening 33 formed on the clamping sleeve body 13.
  • the receiving space 14 is formed from a first area 18 and a second area 19 adjoining the first area 18.
  • the first area 18 forms a support area in which the conductor 10, in particular in the non-connected state, as in Fig.1 is shown.
  • the first area 18 has a round or oval cross-section, so that the shape of the first area 18 is adapted to the outer contour of the round conductor 10.
  • the second area 19 forms a press-in area, in which a portion of the conductor 10 arranged in the first area 18 is pressed by means of the connection screw 15 in a manner as shown in Fig.2 shown connected state.
  • the second area 19 has an elongated cross-section, so that the width B of the second area 19 is smaller than its length L2 and also smaller than the Diameter D of the first region 18.
  • the length L2 of the second region 19 in the embodiment shown here is greater than half the length L1 of the first region 18, so that the second region 19 forming the press-in region is elongated.
  • a circumferential edge 22 is formed, which causes the insulating sheath 12 to be sheared off from the strands 11 when the conductor 10 is pressed into the second area 19.
  • the edge 22 can be sharp-edged.
  • the screw shaft 17 has a diameter DS which is smaller than the width B of the second region 19 of the receiving space 14.
  • the shear forces acting on the conductor 10 during pressing can be increased by the smaller diameter DS of the screw shaft in comparison to the width B of the second region 19.
  • the screw shaft 17 has, at its end section 23 opposite the screw head 16, a region 24 which tapers in the insertion direction R of the connecting screw 15.
  • the screw shaft 17 therefore has a reduced cross-section at its end section 23. This reduction in cross-section can increase the force applied to the conductor 10 by means of the connecting screw 15 to connect the conductor 10.
  • the conductor 10 is initially compressed by the tapered region 24, which comes into direct contact with the conductor 10 when the conductor 10 is connected, thereby displacing the strands 11 outwards, so that after the insulating sheath 12 is sheared off, the exposed strands 11 are pressed outwards in the direction of the side walls 20, 21, so that a high contact force can be formed between the exposed strands 11 and the side walls 20, 21.
  • the tapered area 24 has at least two stepped shoulders 25.
  • the strands 11 of the conductor 10 that come into contact with the end section 23 of the conductor 10 when connecting the conductor 10 are held in place by the shoulders 25 and can thus be pulled out when the connection screw 15 is screwed in further in the insertion direction R of the connection screw 15. be taken along, whereby in turn the strands 11 resting on the side walls 20, 21 of the second region 19 can be pressed more strongly against the side walls 20, 21, so that the contact force acting there can be increased further.
  • the step-shaped shoulders 25 have different heights in the design shown here.
  • the two side walls 19, 20 of the second region 19 do not run parallel to one another, but are designed to run at an angle to one another, so that they are arranged at an angle greater than 0° to one another.
  • the side walls 19, 20 are designed to run towards one another in the direction of a base section 26 of the second region 19, so that the second region 19 tapers towards its base section 26.
  • a projection 27 protruding into the second region 19 is formed on the base section 26, which projection is here in the form of a bulge extending away from the base section 26.
  • the projection 27 is arranged in the middle of the width B of the second region 19.
  • the projection 27 is preferably web-shaped and can extend over the entire depth of the base section 26. Due to the projection 27 protruding into the second region 19, when the partial region of the conductor 10 is pressed into the second region 19, this partial region can be compressed more strongly and the exposed strands 11 of the conductor 10 can be pressed more strongly in the direction of the side walls 20, 21, so that the contact force of the strands 11 resting on the side walls 20, 21 of the second region 19 can be increased.
  • Fig.3 shows a design of a clamping sleeve body 13, in which a slot-shaped recess 28, 29 is formed on each of the two opposite side walls 20, 21 of the second region 19.
  • the two slot-shaped recesses 28, 29 are arranged centrally along the depth of the second region 19, which is formed transversely to the insertion direction R of the connecting screw 15.
  • the slot-shaped recesses 28, 29 also extend over the entire length L2 of the second region 19 in the design shown here.
  • the exposed strands 11 pressed against the side walls 20, 21 can dip into these slot-shaped recesses 28, 29, so that the contact force acting between the side walls 20, 21 and the strands 11 can be increased.
  • a receiving area 30 can be formed on the clamping sleeve body 13, on which a contact element 31, as shown in Fig.4
  • the receiving area 30 has several holes 32, here three holes 32, in which the contact element 31 can be mounted.
  • the contact element 31 is pressed into two of the holes 32.
  • the contact element 31 is designed as a contact tulip.
  • Fig.5 shows a sectional view through an arrangement 200 in which in an insulating housing 40 several as in Fig. 1 to 4 shown connection elements 100 are arranged next to one another so that several conductors 10 can be connected next to one another in an electrically contacting manner.
  • the insulating housing 40 is designed such that it encloses the clamping sleeve body 13, the connection screw 15 and the contact element 31 of a connection element 100.
  • an opening 41 is formed on the insulating housing 40 for each connection element 100.
  • an opening 42 is also formed on the insulating housing 40 for each connection element 100.
  • the insulating housing 40 has two opposite feedthrough openings 43, 44 for each connection element 100, through which the conductor 10 to be connected is guided.
  • an end cap 45 is arranged on the feedthrough openings 44 of one side of the insulating housing 40, which covers all the feedthrough openings 44 on this side of the insulating housing 40.
  • the end cap 45 has a boundary wall 46 for each connection element 100 for the conductor 10 guided through the feedthrough opening 44.
  • the end cap 45 forms a contact protection for the end section of a conductor 10.
  • Each boundary wall 46 may have a perforation 47 for opening the boundary wall 46 so that, as in Fig.6 As shown, a longer conductor 10 can be passed through the end cap 45 and can thus protrude beyond it. At the perforation 47, a user can easily open the boundary wall 46 using a knife if necessary in order to be able to pass a conductor 10 through the end cap 45.
  • Fig.7 further shows a power distribution system 300 in which several arrangements 200 are arranged one behind the other, the conductors 10 arranged next to one another extending through the several arrangements 200 and each conductor 10 being connected to the arrangements 200 in an electrically contacting manner so that a multiple tap is formed per conductor 10.
  • the last arrangement 200 has an end cap 45 on one side to cover the end section of the conductors 10. In the other arrangements 200, no such end cap 45 is arranged, but the conductors 10 extend through the arrangements 200 to the adjacent arrangement 200.
  • Connection element 100 Director 10 Strands 11 Insulating jacket 12 Clamping sleeve body 13 Recording room 14 Connection screw 15 Screw head 16 Screw shaft 17 First area 18 Second area 19 Side wall 20 Side wall 21 Edge 22 End section 23 Rejuvenating area 24 Stepped heel 25 Floor section 26 head Start 27 Slot-shaped recess 28 Slot-shaped recess 29 Recording area 30 Contact element 31 drilling 32 opening 33 arrangement 200 Insulated housing 40 opening 41 opening 42 Feedthrough opening 43 Feedthrough opening 44 End cap 45 Boundary wall 46 Perforation 47 Energy distribution system 300 Insertion direction of the connection screw R Length of the first area L1 Length of the second area L2 Width of the second area B Diameter of the first area D Diameter of screw shaft DS

Landscapes

  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
EP19713749.0A 2018-04-03 2019-03-22 Anschlusselement, anordnung und energieverteilungssystem Active EP3776738B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2018/5220A BE1026172B1 (de) 2018-04-03 2018-04-03 Anschlusselement, Anordnung und Energieverteilungssystem
PCT/EP2019/057218 WO2019192858A1 (de) 2018-04-03 2019-03-22 Anschlusselement, anordnung und energieverteilungssystem

Publications (2)

Publication Number Publication Date
EP3776738A1 EP3776738A1 (de) 2021-02-17
EP3776738B1 true EP3776738B1 (de) 2024-06-26

Family

ID=62001920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19713749.0A Active EP3776738B1 (de) 2018-04-03 2019-03-22 Anschlusselement, anordnung und energieverteilungssystem

Country Status (7)

Country Link
US (1) US11394135B2 (ja)
EP (1) EP3776738B1 (ja)
JP (1) JP7159339B2 (ja)
CN (1) CN111937244B (ja)
BE (1) BE1026172B1 (ja)
CA (1) CA3095967C (ja)
WO (1) WO2019192858A1 (ja)

Citations (1)

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Publication number Priority date Publication date Assignee Title
DE1982475U (de) * 1966-03-31 1968-04-04 Audiola As Leitungsklemme zum anbringen einer isolierten leitung und herstellen der elektrischen verbindung.

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FR1000882A (fr) 1949-11-28 1952-02-18 Organe de connexion électrique
US3129048A (en) * 1961-06-15 1964-04-14 Frederick J Broch Electrical connector
GB1198797A (en) 1966-10-18 1970-07-15 Michael Barrie Christopher Improvements in or relating to Electric Terminal Couplings
DE6926918U (de) 1969-07-04 1969-11-26 Bbc Brown Boveri & Cie Elektrische klemme zur verbindung isolierter leiter
FR2459560A1 (fr) * 1979-06-19 1981-01-09 Alsthom Cgee Bornes de connexion pour conducteur electrique isole
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US4793822A (en) * 1987-10-28 1988-12-27 Amp Incorporated Screw slot connector
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US5102347A (en) * 1991-08-16 1992-04-07 Gte Products Corporation Insulation displacement terminal for telecommunication devices
FR2744288B1 (fr) * 1996-01-30 1998-03-06 Simel Raccord de connexion pour ligne electrique
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JP2014067600A (ja) * 2012-09-26 2014-04-17 Denso Wave Inc プログラマブルロジックコントローラの電線接続装置
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Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1982475U (de) * 1966-03-31 1968-04-04 Audiola As Leitungsklemme zum anbringen einer isolierten leitung und herstellen der elektrischen verbindung.

Also Published As

Publication number Publication date
US11394135B2 (en) 2022-07-19
EP3776738A1 (de) 2021-02-17
JP7159339B2 (ja) 2022-10-24
BE1026172A1 (de) 2019-10-25
CA3095967C (en) 2023-09-12
WO2019192858A1 (de) 2019-10-10
CN111937244B (zh) 2022-08-30
CA3095967A1 (en) 2019-10-10
BE1026172B1 (de) 2019-10-30
CN111937244A (zh) 2020-11-13
JP2021519498A (ja) 2021-08-10
US20210057828A1 (en) 2021-02-25

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