EP2593573B1 - Klemmkörper für einen elektrischen leiter - Google Patents

Klemmkörper für einen elektrischen leiter Download PDF

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Publication number
EP2593573B1
EP2593573B1 EP11738617.7A EP11738617A EP2593573B1 EP 2593573 B1 EP2593573 B1 EP 2593573B1 EP 11738617 A EP11738617 A EP 11738617A EP 2593573 B1 EP2593573 B1 EP 2593573B1
Authority
EP
European Patent Office
Prior art keywords
pocket
containing alloy
clamping body
aluminum
sprag
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
EP11738617.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2593573A1 (de
Inventor
Uwe Ambrosy
Michael Schäfer
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
Priority to PL11738617T priority Critical patent/PL2593573T3/pl
Publication of EP2593573A1 publication Critical patent/EP2593573A1/de
Application granted granted Critical
Publication of EP2593573B1 publication Critical patent/EP2593573B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
    • C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
    • 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
    • H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw

Definitions

  • the invention relates to a clamp body for an electrical conductor with a clamp body pocket, which forms a receiving space for receiving the electrical conductor, a threaded bore for receiving a screw being formed in a side wall of the clamp body pocket.
  • the aluminum-containing alloy is AlSi 1 MgCuMn.
  • Clamping bodies of this type designed as a screw connection, are used, for example, in electrical connecting terminals, such as terminal blocks or luster terminals.
  • Electrical connection terminals with screw connection are characterized by their high clamping forces that can be constantly transferred to electrical conductors over the years. With this type of terminal, predetermined high clamping forces can be maintained without fluctuations even with vibrations acting on the electrical connection terminal. Because of these properties, electrical connection terminals with screw connection are also preferred for demanding industrial applications with moving and vibrating machine parts.
  • the clamping body is usually arranged in an insulating housing.
  • the clamp body pocket of the clamp body can be formed from an electrically conductive material.
  • a threaded bore, into which a screw is inserted, is formed on a side wall of the clamp body pocket and extends into the receiving space of the clamp body.
  • the screw head of the screw is accessible via an opening provided in the insulating material housing so that the screw can be turned with its tip into the receiving space and can clamp an electrical conductor inserted therein. But it is also possible that at actuation of the screw, the screw pulls the clamping body upward and presses the conductor against a current bar, so that there is no direct contact between the conductor and the screw.
  • the sprag pocket can be made from a bent band-shaped sheet metal element which is bent or folded according to the contour of the sprag pocket.
  • a steel material or a material with a brass-containing alloy is usually used for such a sprag pocket.
  • the sprag pocket can be made from a solid profile, which is machined accordingly by machining processes, such as sawing, drilling, milling, broaching, thread cutting, in order to maintain the shape of the sprag pocket.
  • machining processes such as sawing, drilling, milling, broaching, thread cutting
  • a sprag pocket made from a full profile with smaller dimensions can be formed than a sprag pocket made from a bent band-shaped sheet metal element, whereby the space requirement of the sprag pocket can be reduced.
  • clamp body pockets made from a solid profile can have a longer threaded hole, as a result of which a higher torque and thus a higher axial force can be applied to the electrical conductor clamped by means of the screw inserted in the threaded hole.
  • a sprag pocket made from a full profile usually consists of a brass-containing alloy, which has an improved strength and a higher corrosion resistance compared to a sprag pocket made of steel.
  • US6338658 B1 discloses a clamp body for an electrical conductor with a clamp body pocket, the clamp body pocket being formed from A6061-T6.
  • the invention is based on the object of providing a solution in which a sprag essentially has the properties of a sprag made of a brass-containing alloy and at the same time corresponds to the EU directives and the prohibitions on substances.
  • the clamp body pocket is formed from an aluminum-containing alloy which has a tensile strength of 380 N / mm 2 to 480 N / mm 2 .
  • the clamping body has a significantly lower weight than a clamping body pocket made of an alloy containing brass, so that a weight saving can also be achieved.
  • the aluminum-containing alloy has a tensile strength of 380 N / mm 2 to 480 N / mm 2
  • the aluminum-containing alloy and thus the sprag pocket have no or at least only a very slight relaxation, so that the functionality, in particular the ability to clamp or the clamping force of such a clamping body has a very long service life when clamping an electrical conductor without the clamping effect diminishing since the good mechanical properties, in particular the high tensile strength of the material of the clamping body pocket, from 380 N / mm 2 to 480 N / mm 2 , can be prevented that the material of the sprag pocket yields and widens due to the applied tension by the clamping force.
  • a tensile strength of 380 N / mm 2 to 480 N / mm 2 here means that the aluminum-containing alloy used as the material for the sprag pocket has a tensile strength of 380 N / mm 2 , 480 N / mm 2 or a value between 380 N / mm 2 and 480 N / mm 2 .
  • the aluminum-containing alloy contains magnesium.
  • the strength, in particular the tensile strength, of the aluminum-containing alloy and thus the sprag pocket can be improved, so that a possible relaxation of the material of the sprag pocket can be further reduced.
  • the aluminum-containing alloy has 0.6-1.2% by weight of magnesium.
  • the aluminum-containing alloy has a copper content of 1,2 1.2% by weight. Due to a copper content in the aluminum-containing alloy of ⁇ 1.2% by weight, the aluminum-containing alloy has a very good corrosion resistance, in particular a very good resistance to contact corrosion, even without the aluminum-containing alloy and thus the sprag pocket being provided with an additional surface coating got to. The corrosion resistance remains constant over the service life and is independent of damage to the surface of the sprag pocket made of an aluminum-containing alloy. Such an aluminum-containing alloy also has a significantly better corrosion resistance than steel materials provided with a surface coating.
  • the aluminum-containing alloy has a silicon content of 1,4 1.4% by weight.
  • the aluminum-containing alloy is a wrought aluminum alloy of the 6000 Al-Mg-Si series.
  • the aluminum-containing alloy thus preferably has the components aluminum (Al), magnesium (Mg) and silicon (Si).
  • the wrought aluminum alloy of the 6000 series Al-Mg-Si is characterized by a very high corrosion resistance.
  • the sprag pocket made of wrought aluminum alloy of the 6000 Al-Mg-Si series has very good formability and very good formability, and the material condition remains stable up to 150 ° C even under thermal operating stresses, in particular also under long-term loads. Temporary higher temperatures up to about 180 ° C are also not critical.
  • the aluminum-containing alloy is AlSilMgCuMn (EN AW - 6056).
  • Such an aluminum-containing alloy has high strength, in particular high tensile strength, very good corrosion resistance, good machinability and formability, no or only very little relaxation behavior, so that a sprag pocket with such an aluminum-containing alloy has essentially the same properties as Has clamp body bag made of a brass-containing alloy provided with lead additives, the clamp body bag made of a corresponding aluminum-containing alloy having a lower weight and lower production costs than a clamp body bag made of a brass-containing alloy.
  • the sprag pocket is provided with a surface coating.
  • the surface coating can be formed, for example, by a nickel coating. Before the nickel coating is applied, the surface of the aluminum-containing alloy of the sprag pocket is pickled, preferably zinc-pickled. Furthermore, the surface coating can also be provided in such a way that the surface of the aluminum-containing alloy of the sprag pocket is anodized, so that an aluminum oxide layer, a so-called hard coat surface, is formed on the surface, which has an electrically insulating effect. It is also possible to provide a copper base as a surface coating. However, it is also possible to provide no surface coating at all.
  • the clamp body pocket is formed from a full profile.
  • full profile means that the sprag pocket is made from one piece, preferably a rectangular profile wire, which is machined accordingly by milling, broaching and drilling to form a sprag pocket with a receiving space for receiving an electrical conductor and a threaded hole.
  • Such sprag pockets produced from a full profile have hitherto usually been produced from a brass-containing alloy provided with lead additives or from brass alloys with a lead component.
  • clamp body pockets made from a full profile can now be made from a full profile comprising an aluminum-containing alloy are produced, which has no lead additives, but essentially has the same properties, in particular mechanical properties, as a sprag pocket made of a brass-containing alloy.
  • the clamping body pocket is formed from a curved band-shaped element.
  • Clamp body pockets of this type have hitherto usually been produced from a steel material or a material with a brass-containing alloy.
  • a sprag pocket according to the invention made from an aluminum-containing alloy has in particular better corrosion resistance with the same good or better formability.
  • the invention relates to an electrical connecting terminal comprising a clamping body which is designed and developed as above.
  • the in 1 to 3 shown clamping body 10 has a clamping body pocket 12 which is formed from a solid profile and is produced by machining, in particular milling, broaching and drilling, for example from a rectangular profile wire.
  • the clamp body pocket 12 has a receiving space 14, which in the form of a, as in Fig. 2 through hole is formed, through which an electrical conductor (not shown here) to be clamped and connected can be introduced.
  • the receiving space 14 is delimited by a first side wall 16, a second side wall 18, a bottom side wall 20 and a ceiling side wall 22 of the sprag pocket 12.
  • a threaded bore 24 is formed in the ceiling-side wall 22 for receiving a screw, not shown here, by means of which the conductor inserted into the receiving space 14 can be clamped and connected.
  • Fig. 3 the terminal block is shown in a plan view of the ceiling-side wall 22 in which the threaded bore 24 is provided.
  • the clamp body pocket 12 is made of an electrically conductive, lead-free aluminum-containing alloy, AlSilMgCuMn, which has a tensile strength between 380 N / mm 2 and 480 N / mm 2 and is particularly good due to its particularly good machinability Corrosion resistance, no or only very low relaxation properties, low weight and low manufacturing costs.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Clamps And Clips (AREA)
EP11738617.7A 2010-07-13 2011-07-08 Klemmkörper für einen elektrischen leiter Active EP2593573B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11738617T PL2593573T3 (pl) 2010-07-13 2011-07-08 Korpus zaciskowy dla przewodu elektrycznego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010027082A DE102010027082A1 (de) 2010-07-13 2010-07-13 Klemmkörper für einen elektrischen Leiter
PCT/EP2011/003422 WO2012007136A1 (de) 2010-07-13 2011-07-08 Klemmkörper für einen elektrischen leiter

Publications (2)

Publication Number Publication Date
EP2593573A1 EP2593573A1 (de) 2013-05-22
EP2593573B1 true EP2593573B1 (de) 2020-03-11

Family

ID=44486831

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11738617.7A Active EP2593573B1 (de) 2010-07-13 2011-07-08 Klemmkörper für einen elektrischen leiter

Country Status (7)

Country Link
US (1) US8911270B2 (pl)
EP (1) EP2593573B1 (pl)
CN (1) CN103052730B (pl)
DE (1) DE102010027082A1 (pl)
ES (1) ES2784126T3 (pl)
PL (1) PL2593573T3 (pl)
WO (1) WO2012007136A1 (pl)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5934618B2 (ja) * 2012-09-14 2016-06-15 矢崎総業株式会社 端子金具
DE102014012489B4 (de) 2014-08-27 2025-02-06 Auto-Kabel Management Gmbh Anschlussteil für Aluminiumleitungen
DE202018104958U1 (de) 2018-08-30 2018-09-12 Harting Electric Gmbh & Co. Kg Steckverbinder mit Komponenten aus verbessertem Material

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH554603A (de) * 1972-09-15 1974-09-30 Pfisterer Elektrotech Karl Klemme zum verbinden der enden von elektrischen leitern.
US6338658B1 (en) * 2000-02-14 2002-01-15 Ilsco Corporation Slotted electrical connector

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2193202A (en) * 1939-03-13 1940-03-12 Cutler Hammer Inc Wiring-terminal device
GB718602A (en) 1951-08-27 1954-11-17 Rohland Paul Gerhard Improvements in rope clamps and methods for their application
US3516049A (en) * 1968-06-12 1970-06-02 Gen Electric Multiple electrical terminal connector for panelboards and/or load centers
SU449967A1 (ru) 1972-11-13 1974-11-15 Предприятие П/Я А-6585 Сплав на основе алюмини
FR2312839A1 (fr) 1975-05-28 1976-12-24 Pechiney Aluminium Conducteurs electriques ameliores en alliages al-mg-si, en particulier pour cables aeriens de transport d'energie, et procede d'obtention
JPS6389640A (ja) * 1986-10-01 1988-04-20 Sky Alum Co Ltd 電子電気機器導電部品材料
WO1994012677A1 (de) * 1992-11-20 1994-06-09 'techma' Gesellschaft Mit Beschränkter Haftung Aluminiumlegierung
DE102005061732B4 (de) * 2005-12-21 2015-01-08 Phoenix Contact Gmbh & Co. Kg Verfahren zur Bildung einer Struktur an einem Klemmkörper für eine Schraubklemme
FR2902442B1 (fr) * 2006-06-16 2010-09-03 Aleris Aluminum Koblenz Gmbh Alliage de la serie aa6xxx, a grande tolerance aux dommages pour l'industrie aerospatiale

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH554603A (de) * 1972-09-15 1974-09-30 Pfisterer Elektrotech Karl Klemme zum verbinden der enden von elektrischen leitern.
US6338658B1 (en) * 2000-02-14 2002-01-15 Ilsco Corporation Slotted electrical connector

Also Published As

Publication number Publication date
DE102010027082A1 (de) 2012-01-19
ES2784126T3 (es) 2020-09-22
CN103052730B (zh) 2017-07-07
EP2593573A1 (de) 2013-05-22
PL2593573T3 (pl) 2020-07-13
US20130115827A1 (en) 2013-05-09
WO2012007136A1 (de) 2012-01-19
US8911270B2 (en) 2014-12-16
CN103052730A (zh) 2013-04-17

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