EP0559585A1 - Verbinderklemme mit Sattel veränderlicher Dicke und mit eingefasster Mutter - Google Patents

Verbinderklemme mit Sattel veränderlicher Dicke und mit eingefasster Mutter Download PDF

Info

Publication number
EP0559585A1
EP0559585A1 EP93420089A EP93420089A EP0559585A1 EP 0559585 A1 EP0559585 A1 EP 0559585A1 EP 93420089 A EP93420089 A EP 93420089A EP 93420089 A EP93420089 A EP 93420089A EP 0559585 A1 EP0559585 A1 EP 0559585A1
Authority
EP
European Patent Office
Prior art keywords
arms
connection terminal
nut
thickness
stirrup
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.)
Granted
Application number
EP93420089A
Other languages
English (en)
French (fr)
Other versions
EP0559585B1 (de
Inventor
Noel Le Corre
Jean-Jacques Nardin
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.)
Schneider Electric SE
Original Assignee
Merlin Gerin SA
Schneider Electric SE
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 Merlin Gerin SA, Schneider Electric SE filed Critical Merlin Gerin SA
Publication of EP0559585A1 publication Critical patent/EP0559585A1/de
Application granted granted Critical
Publication of EP0559585B1 publication Critical patent/EP0559585B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut

Definitions

  • connection terminal for electrical equipment comprising a U-shaped bracket having two rectilinear and parallel arms joined at the base by a common core constituting the semi-arched bottom of the terminal, a two-nut lateral tenons, inserted inside the U in opposite mortises made in the vicinity of the ends of the two arms, and a clamping screw housed in a tapped hole in the nut, and extending in the median plane of symmetry parallel to the two arms.
  • the phase and neutral circuits are housed in a common insulating box having a reduced width, in particular 18mm.
  • a neutral terminal and a phase terminal must be placed side by side in adjacent drums on each side connection side of the housing.
  • Each terminal must have sufficient mechanical strength to withstand the tightening torque, and oppose the pulling of the cables, and must also authorize the clamping of cables of different diameters.
  • the clamp of the bollard is generally made from a relatively thick sheet metal which limits the spacing between the arms. The connection of cables of large diameters is then impossible if one wishes to keep the overall dimensions in width of 18mm. As a result, the ratings of the unipolar and neutral circuit breakers are limited to 32A.
  • the object of the invention is to improve the structure of a connection terminal for use in electrical devices of large sizes and reduced dimensions.
  • the terminal according to the invention is characterized in that the half-vaulted core has a thickness greater than that of each arm, said thickness being variable to constitute a beam embedded at its two ends at the base of the arms, and having a uniform mechanical resistance for a predetermined tightening torque, when the cable is wedged between the core and the underside of the contact pad.
  • the thickness of the half-arch is maximum in the median plane of the stirrup, and decreases progressively up to the base of each arm, the pressure on the beam acting in a distribution appreciably parabolic and symmetrical with respect to the median plane.
  • the assembly of the stirrup with the nut is effected by crimping the tenons in the mortises generating two mechanical interlocking connections.
  • Figure 1 is a sectional view of the connection terminal according to the invention, inserted on a contact pad.
  • Figure 2 is a plan view of Figure 1, after removal of the clamping screw.
  • Figure 3 shows a profile view of Figure 1.
  • Figure 4 shows a perspective view of the caliper and nut assembly of the terminal.
  • Figure 5 is a view of the sheet metal strip cut for the stirrup manufacturing.
  • Figure 6 shows a perspective view of the nut.
  • Figure 7 is a partial view on an enlarged scale of the stirrup.
  • a connection terminal 10 for electrical equipment includes a U-shaped bracket 12 made of conductive metallic material from a cut sheet 13 (FIG. 5).
  • the stirrup 12 comprises two parallel arms 14, 16 joined at the base by a common core 18 having a slightly curvilinear profile constituting the half-arched bottom of the stirrup (12).
  • a nut (20) with two opposite lateral tenons (22,24) is inserted inside the U in corresponding mortises 26,28 of rectangular shapes, formed in the vicinity of the ends of the two arms 14,16.
  • the nut 20 is provided in its central zone with a tapped circular orifice 30 with internal thread intended to cooperate with the external thread of a screw 32 with a tightening head 34.
  • the screwing of the tightening head 34 causes a displacement in translation of the screw 32 in an axial direction parallel to the two arms 14,16.
  • the end of the screw 32 is capable of bearing on the upper face of a fixed contact pad 36 (FIG. 1), arranged with clearance between the sides of the arms 12,14 and in electrical connection with the contact circuit of the 'equipment.
  • the cable 38 to be connected is introduced into terminal 10 between the core 18 of the stirrup 12 and the underside of the contact pad 36.
  • the relative displacement of the stirrup 12 when the screw 32 is screwed causes an effect jamming of the cable 38 between the core 18 and the fixed contact pad 36.
  • the front face of the core 18 of the stirrup 12 is provided with a flap-shaped tongue 40 folded at an angle downwards.
  • the flap 40 extends perpendicularly to the two arms 14, 16, so as to gradually close off the inactive portion of the orifice of the housing during the translational movement of the stirrup 12 in the direction of the contact pad 36.
  • the half-vault of the core 18 comprises two triangular openings 41,42 disposed in the central zone symmetrically with respect to the median plane of trace 43, and cooperating with two teeth 44,46 projecting from the lower surface of the contact pad 36, to allow the connection of cables or conductors of small diameters.
  • variable thickness of the half-vault of the core 18 is always greater than that of each arm 14, 16 in order to withstand the mechanical stresses of tightening the cable 38 by the contact pad 36 and the screw 32.
  • the force F of clamping located in the median plane 43 ( Figure 7) exerts maximum pressure on the central part of the half arch. The thickness at this location is maximum, and gradually decreases to the base of each straight arm 14,16.
  • the whole of the semi-vault with variable thickness constitutes a beam working at bending with embedding at its two ends 48.50 at the base of each arm 14.16.
  • the pressure on the beam due to the tightening of the screw 32 is not punctual, but is exerted according to a distribution substantially parabolic and symmetrical with respect to the median plane 43.
  • the thickness of the flap 40 corresponds to the average thickness of the core 18.
  • Obtaining the sheet metal part 13 bi-thickness of Figure 5 can be achieved by different methods.
  • a first method consists in producing a profiled strip by stretching in a die.
  • a second process provides for the cutting a single-thickness strip corresponding to the maximum thickness of the core 18, followed by a crushing operation at the level of the two arms 14, 16 in order to obtain the minimum thickness for these two parts of the caliper 12.
  • the thickness of the two arms 14, 16 of the stirrup 12 is of the order of 0.7mm, while that of the core 18 at the level of the median plane 43 is located in the vicinity of 1.4mm.
  • Each tenon 22,24 of the nut 20 has an upper face cut in a bevel 52 (FIG. 6) facilitating engagement in the corresponding mortise 26,28.
  • the assembly of the nut 20 and the stirrup 12 is effected by crimping of the pins 22, 24 in the mortises 26, 28, so as to obtain two mechanical connections without interlocking supporting the traction forces and the box effect opposing the tightening torque by screw 32.
  • the crimping operation of the studs 22,24 can be replaced or supplemented by an electrical resistance welding operation carried out on two bosses 54,56 (FIG. 3) of each arm 14,16.
  • the two bosses 54,56 are located on the external face of the arms 14,16 at the level of the nut 20, and on either side of the corresponding mortise 26,28.
  • Terminal 10 is particularly suitable for equipping a single-pole and neutral circuit breaker of ratings up to 40A, and whose housing has a width of 18mm.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Cable Accessories (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Breakers (AREA)
  • Clamps And Clips (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
EP19930420089 1992-03-02 1993-02-26 Verbinderklemme mit Sattel veränderlicher Dicke und mit eingefasster Mutter Expired - Lifetime EP0559585B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9202575 1992-03-02
FR9202575A FR2688095B1 (fr) 1992-03-02 1992-03-02 Borne de raccordement a etrier d'epaisseur variable et a ecrou serti .

Publications (2)

Publication Number Publication Date
EP0559585A1 true EP0559585A1 (de) 1993-09-08
EP0559585B1 EP0559585B1 (de) 1996-06-12

Family

ID=9427330

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930420089 Expired - Lifetime EP0559585B1 (de) 1992-03-02 1993-02-26 Verbinderklemme mit Sattel veränderlicher Dicke und mit eingefasster Mutter

Country Status (6)

Country Link
EP (1) EP0559585B1 (de)
CN (1) CN1040485C (de)
DE (1) DE69303065T2 (de)
ES (1) ES2090928T3 (de)
FR (1) FR2688095B1 (de)
RU (1) RU2107365C1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997011510A1 (en) * 1995-09-22 1997-03-27 Birkett Electric Ltd. Mechanical connectors
WO2001015276A1 (en) * 1999-08-24 2001-03-01 Tappat Engineering Pty Limited Electrical cable piercing connector
WO2002075889A2 (de) * 2001-03-20 2002-09-26 Moeller Gebäudeautomation KG Klemmhilfe
GB2364186B (en) * 2000-06-27 2004-04-14 Matsushita Electric Works Ltd Wire-connecting terminal connector and switching device for wiring accessory
ES2239884A1 (es) * 2003-10-03 2005-10-01 General Electric Company Terminal universal de interruptor.
AU783805B2 (en) * 1999-08-24 2005-12-08 Tappat Engineering Pty Limited Electrical cable piercing connector
WO2011144225A1 (de) * 2010-05-20 2011-11-24 Siemens Aktiengesellschaft Anschlusselement für ein schaltgerät

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2721142B1 (fr) * 1994-06-13 1996-07-19 Schneider Electric Sa Appareil électrique muni d'une borne à vis.
JPH1131441A (ja) * 1997-07-11 1999-02-02 Mitsubishi Electric Corp 端子接続装置
CN102253248A (zh) * 2011-06-23 2011-11-23 江苏华富控股集团有限公司 一种电池充放电测试连接夹具及其使用方法
CN104282450A (zh) * 2014-10-10 2015-01-14 潞安职业技术学院 一种防爆高开卡爪

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE732063C (de) * 1936-09-03 1943-02-20 Dipl Raufmann Alois Schiffmann Aus Leichtmetall bestehende Klemme fuer Hochspannungsleiter
FR1180292A (fr) * 1957-07-30 1959-06-03 Perfectionnements apportés aux bornes de mise à la terre, notamment pour poteaux en béton supports de lignes électriques
FR2491688A1 (fr) * 1980-10-07 1982-04-09 Breter Spa Structure de serrage des conducteurs pour des fiches electriques males et femelles
GB2151086A (en) * 1983-11-08 1985-07-10 Hepworth Electrical Developmen Electrical cable tap connectors
EP0281996A2 (de) * 1987-03-11 1988-09-14 Firma Georg Schlegel Schraubklemme für elektrische Leiter
US5015205A (en) * 1989-11-07 1991-05-14 Franks George J Jr Cable clamp

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE732063C (de) * 1936-09-03 1943-02-20 Dipl Raufmann Alois Schiffmann Aus Leichtmetall bestehende Klemme fuer Hochspannungsleiter
FR1180292A (fr) * 1957-07-30 1959-06-03 Perfectionnements apportés aux bornes de mise à la terre, notamment pour poteaux en béton supports de lignes électriques
FR2491688A1 (fr) * 1980-10-07 1982-04-09 Breter Spa Structure de serrage des conducteurs pour des fiches electriques males et femelles
GB2151086A (en) * 1983-11-08 1985-07-10 Hepworth Electrical Developmen Electrical cable tap connectors
EP0281996A2 (de) * 1987-03-11 1988-09-14 Firma Georg Schlegel Schraubklemme für elektrische Leiter
US5015205A (en) * 1989-11-07 1991-05-14 Franks George J Jr Cable clamp

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997011510A1 (en) * 1995-09-22 1997-03-27 Birkett Electric Ltd. Mechanical connectors
WO2001015276A1 (en) * 1999-08-24 2001-03-01 Tappat Engineering Pty Limited Electrical cable piercing connector
AU783805B2 (en) * 1999-08-24 2005-12-08 Tappat Engineering Pty Limited Electrical cable piercing connector
GB2364186B (en) * 2000-06-27 2004-04-14 Matsushita Electric Works Ltd Wire-connecting terminal connector and switching device for wiring accessory
WO2002075889A2 (de) * 2001-03-20 2002-09-26 Moeller Gebäudeautomation KG Klemmhilfe
WO2002075889A3 (de) * 2001-03-20 2003-12-11 Moeller Gebaeudeautomation Kg Klemmhilfe
EP1746619A1 (de) * 2001-03-20 2007-01-24 Moeller Gebäudeautomation GmbH Klemmhilfe
ES2239884A1 (es) * 2003-10-03 2005-10-01 General Electric Company Terminal universal de interruptor.
WO2011144225A1 (de) * 2010-05-20 2011-11-24 Siemens Aktiengesellschaft Anschlusselement für ein schaltgerät
EP2548264B1 (de) 2010-05-20 2016-08-24 Siemens Aktiengesellschaft Anschlusselement für ein schaltgerät

Also Published As

Publication number Publication date
RU2107365C1 (ru) 1998-03-20
ES2090928T3 (es) 1996-10-16
CN1040485C (zh) 1998-10-28
FR2688095B1 (fr) 1996-05-24
FR2688095A1 (fr) 1993-09-03
EP0559585B1 (de) 1996-06-12
DE69303065D1 (de) 1996-07-18
CN1076059A (zh) 1993-09-08
DE69303065T2 (de) 1996-12-19

Similar Documents

Publication Publication Date Title
EP0559585B1 (de) Verbinderklemme mit Sattel veränderlicher Dicke und mit eingefasster Mutter
CH704749B1 (fr) Clip de contact.
CA1245736A (fr) Connexion electrique vissee
EP2541684A1 (de) Anschluss zum Verbinden von zwei Stromkabeln
US5292263A (en) Electrical connector
EP0211741B1 (de) Anschlussdose mit seitlicher Verbindung
EP0148051A1 (de) Verfahren und Einrichtung zum festen elektrischen Verbinden von Litzen auf Stromzufuhrflächen
EP0466528B1 (de) Schnellkupplungseinrichtung für Batterieendklemme
FR2825838A1 (fr) Borne a vis
FR2769411A1 (fr) Borne de connexion a serrage automatique
EP2518831B1 (de) Anschlussmuffe für elektrische Kabel
EP0541459B1 (de) Schraubklemme für elektrisches Gerät mit gegossenem Isoliergehäuse
FR2752647A1 (fr) Dispositif de borne pour un equipement electrique
EP2677602B1 (de) Verbindungsanschluss für mindestens zwei Stromkabel
FR2844926A1 (fr) Dispositif de fixation et de contact pour barres de bus
EP1531525A1 (de) Kabelklemme mit vergrösserter Klemmfläche und damit ausgerüsteter Verbinderblock
EP1650831B1 (de) Kabelschuh für eine elektrische Verbindung mit einem verjüngten Abschnitt
FR2464570A1 (fr) Borne de raccordement pour appareils electriques
FR2517480A1 (fr) Contact electrique femelle
FR2506083A1 (fr) Borne de connexion a vis de serrage pour appareillage electrique
EP0552996B1 (de) Elektrische Steckverbindungsbuchse
EP0149944B1 (de) Verbindung mit kippbarem Klemmbügel
FR2522202A1 (fr) Borne de connexion a autocentrage des conducteurs serres
EP3667824B1 (de) Klemme mit klemmkompensation, insbesondere für eine elektrische schutzvorrichtung
FR2988920A1 (fr) Borne de connexion electrique destinee a recevoir un couteau

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE CH DE ES GB IT LI SE

17P Request for examination filed

Effective date: 19940208

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SCHNEIDER ELECTRIC SA

17Q First examination report despatched

Effective date: 19950321

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH DE ES GB IT LI SE

REF Corresponds to:

Ref document number: 69303065

Country of ref document: DE

Date of ref document: 19960718

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19960718

ITF It: translation for a ep patent filed

Owner name: EUROPATENT S.A.S.

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2090928

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2090928

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20010131

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20010201

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20010206

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20010221

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20010302

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20010420

Year of fee payment: 9

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020226

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020227

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020227

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020228

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020228

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020228

BERE Be: lapsed

Owner name: S.A. SCHNEIDER ELECTRIC

Effective date: 20020228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020903

EUG Se: european patent has lapsed

Ref document number: 93420089.0

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20020226

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20031022

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050226