EP0708462A1 - Elektrische Kontaktklammer und Klemmvorrichtung mit einem solchen Klemmstück - Google Patents

Elektrische Kontaktklammer und Klemmvorrichtung mit einem solchen Klemmstück Download PDF

Info

Publication number
EP0708462A1
EP0708462A1 EP95402304A EP95402304A EP0708462A1 EP 0708462 A1 EP0708462 A1 EP 0708462A1 EP 95402304 A EP95402304 A EP 95402304A EP 95402304 A EP95402304 A EP 95402304A EP 0708462 A1 EP0708462 A1 EP 0708462A1
Authority
EP
European Patent Office
Prior art keywords
clamp
contact
support
longitudinal
facing
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
EP95402304A
Other languages
English (en)
French (fr)
Other versions
EP0708462B1 (de
Inventor
Thierry Starck
Didier Coq
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.)
Grid Solutions SAS
Original Assignee
GEC Alsthom T&D SA
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 GEC Alsthom T&D SA filed Critical GEC Alsthom T&D SA
Publication of EP0708462A1 publication Critical patent/EP0708462A1/de
Application granted granted Critical
Publication of EP0708462B1 publication Critical patent/EP0708462B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/42—Knife-and-clip contacts

Definitions

  • the invention relates to an electrical contact clamp, and to a clamp device provided with such a clamp.
  • the invention relates in particular to a contact clamp and a clamp device intended in particular to be mounted on the poles of circuit breaker disconnectors with rotary movement.
  • Connection clamps comprising a clamp body defining a longitudinal pinch plane, a first series of contact fingers mounted longitudinally on the clamp body, on one side of the pinch plane, and a second series of contact fingers mounted longitudinally on the clamp body, on the other side of the clamping plane, opposite the first series.
  • Each contact finger has a front face facing the pinch plane, a dorsal face opposite the front face, first and second front ends facing the pinch plane.
  • Said first and second series define a first jaw between the first front ends of the facing contact fingers, and a second jaw between the second front ends of the facing contact fingers.
  • the first ends of each series are linked together by a longitudinal axis, the spacing between each end of the same series being maintained by spacers carried by said axis.
  • each series are also linked by a longitudinal axis.
  • This axis is also associated with the gripper body by an association with radial clearance to allow the movement of the second ends relative to the gripper body.
  • the spacing between each second end of the same series is also maintained by spacers carried by the axis.
  • the spacing between two opposite fingers is obtained by a spacer transverse.
  • the elasticity of the clamp is obtained by a helical spring stretched between two fingers opposite.
  • Such a clamp is part of a clamp device.
  • This device comprises, in addition to the clamp, a support on which the clamp body is rigidly mounted, the second jaw enclosing said support. The purpose of this device is that the first jaw is clamped, by pivoting about an axis perpendicular to the pinch plane, on a conductive bar to ensure the passage of an electric current between the support and the bar.
  • a first object of the present invention is to propose a clamp comprising a limited number of parts, of easy assembly.
  • Another object of the present invention is to provide a clamp where the fingers are mounted independent of each other others, so that each contact finger has its own pinch movement.
  • Another object of the present invention is to articulate the gripper body on the support so that the bar can penetrate the first jaw even if it is not exactly included in the initial gripping plane.
  • Another object of the present invention is to provide a spoon-shaped contact finger end having a leading edge rounded in all directions and in particular in that of the longitudinal axis of the clamp.
  • connection clamp comprising a clamp body defining a longitudinal clamping plane, a first series of contact fingers mounted longitudinally on the clamp body, on one side of the clamping plane, and a second series of contact fingers mounted longitudinally on the clamp body, on the other side of the pinch plane, facing the first series,
  • Each contact finger having a front face opposite the pinch plane, a dorsal face opposite to the front face, first and second front ends facing the pinch plane, said first and second series defining a first jaw between the first front ends of the contact fingers facing each other, and a second jaw between the second front ends of the contact fingers facing.
  • each finger of the first and second series mounted on said clamp body is movable independently of the other fingers.
  • the clamp comprises a front locking element on which bears a central front region of the front face of the finger, and a dorsal support element on which carries a central dorsal region of the dorsal face of the finger.
  • At least one of the front or back areas bears respectively on the blocking or support element by means of an elastic element.
  • the clamp body comprises two transverse ends of general "U" shape, coupled to each other by at least two facing longitudinal uprights, each upright comprising a plurality of cells for receiving the contact fingers, each of the cells having a bottom and two side walls, each contact finger comprising a central passage or equivalent adjusted to the width between the side walls of the cells of reception, longitudinal holding clips being mounted on the clamp body parallel to the transverse uprights, blocking the free faces of the fingers mounted in said cells.
  • the clamp body is in one piece.
  • the cells, located on the opposite faces of the transverse uprights form said back support elements, and said clips, blocking the front faces of the contact fingers, form the front blocking elements.
  • the elastic element is an elastic blade inserted between the bottom of the cell and the dorsal face of the associated contact finger.
  • the elastic blade has a general "U" shape, and the contact finger has hollowed back ends, accommodating the free ends of the elastic blade in a "U” shape, the central branch of the elastic blade being in contact with the bottom. of the socket.
  • the clamp comprises a longitudinal clip by longitudinal post, having a longitudinal central part blocking the contact fingers, and two end parts snap-on on or in the transverse ends.
  • the clamp comprises a pretensioner tool, pre-tensioning the elastic elements to open the jaw intended to grip the support.
  • connection clamp device comprising a conductive support, and a connection clamp having a clamp body defining a longitudinal pinching plane, a first series of contact fingers mounted longitudinally on the clamp body, one side of the pinch plane, and a second series of contact fingers mounted longitudinally on the clamp body, on the other side of the pinch plane, facing the first series, each contact finger having a facing front face of the pinch plane, a dorsal face opposite the front face, first and second front ends facing the pinch plane, said first and second series defining a first jaw between the first front ends of the contact fingers facing, and a second jaw between the second front ends of the facing contact fingers, said clamp body being secured to the sup port, one of the jaws enclosing the support.
  • the device comprises means for associating the gripper body on the support so that the gripper body is free to tilt around an axis of longitudinal tilting relative to the support.
  • the transverse branches of the two transverse ends in the shape of a "U" cover the transverse ends of the support, a longitudinal tilting axis passing through said transverse branches and of the support.
  • the clamp 1 according to the invention comprises a clamp body 2 defining a pinch plane 3.
  • the longitudinal term refers to a reference line included in the pinch plane 3.
  • the transverse term refers to the plane perpendicular to said line of reference.
  • the clamp 1 further comprises a first series of contact fingers 5 mounted longitudinally on the clamp body 2, on one side of the clamping plane 3, and a second series of contact fingers 5 mounted longitudinally on the clamp body 2 , on the other side of the pinch plane 3, opposite the first series,
  • Each contact finger 5 having a front face 6 facing the pinch plane 3, a dorsal face 7 opposite the front face 6, a first 8a and a second 8b front ends facing the pinch plane 3.
  • the first and second series define a first jaw 9a between the first front ends 8a of the contact fingers 5 facing each other, and a second jaw 9b between the second front ends 8b of the contact fingers 5 facing each other.
  • the clamp comprises a front locking element 11 on which carries a central front zone of the front face 6 of the contact finger 5 and a back support element 12 on which carries a central dorsal zone of the face back 7 of the contact finger 5.
  • At least one of the front or back faces comprises an elastic element.
  • the gripper body 2 comprises two transverse ends 14 of general "U" shape, coupled to one another by at least two longitudinal uprights 15 facing each other, each upright 15 comprising a plurality of cells 16 for receiving contact fingers 5, each of the cells 16 having a bottom 20 and two side walls 18.
  • Each contact finger 5 comprising four longitudinal projections 50 defining a central passage 17 adjusted to the width between the side walls 18 of the receiving cells 16, in such a way that in the mounted position, the contact finger rests on the bottom of the cell by its front 6 or dorsal 7 face, the projections 50 cooperating with the side walls 18 to block the contact finger in translation in directions contained in the pinching plane 3.
  • the central passage 17 of the contact finger 5 comprises a stamped part 51 making it possible to increase the height of embedding of the contact finger in the socket, thus preventing i a possible reversal of the contact finger 5 in its receiving socket 16.
  • Longitudinal staples 19 for holding are mounted on the clamp body 2 parallel to the longitudinal uprights 15 and block the faces remaining free from the contact fingers 5 mounted in said cells 16.
  • the clamp body 12 is in one piece, the free arms of the "U" shape extending from the side of the first ends 8a of the contact fingers 5.
  • Each finger comprises an elastic blade 13 interposed between the bottom 20 of the cell 16 and the dorsal face 7 of the associated contact finger 5.
  • At least one of the ends of each contact finger 5 has a general spoon shape, the back of the spoon being the front end 8a, 8b of said contact finger 5.
  • the elastic blade 13 has a general "U" shape.
  • the free ends 22 of the elastic blade 13 in the shape of a "U” are housed in hollow dorsal parts of the ends of the contact fingers 5, the central branch 23 of the elastic blade 13 being in contact with the bottom 20 of the cell 16.
  • the clamp comprises a longitudinal clip 19 per longitudinal post 15.
  • Each clip 19 has a longitudinal central portion 24 blocking the contact fingers 5, and two end portions 25 snap-on on or in the transverse ends 14.
  • the longitudinal central portion 24 of the clip 19 is positioned between the first ends 8a of the contact fingers 5 and the longitudinal uprights 15.
  • the latching system is molded with the one-piece clamp body.
  • the latching system is of the baffle type, the end part 25 is wound a quarter turn around a stud 52 of longitudinal axis located on the face external of the transverse ends 14, the free end 53 of said end portion 25 coming to lock against a stop 54 in opposition to the stud 52.
  • the clamp is shown in the ready to use position.
  • a pretensioner tool 26 has been introduced, prestressing the elastic blades 13, so that the second jaw 9b is open, ready to grip the support on which the clamp will be associated.
  • This tool 26 is positioned between the two series of contact fingers 5, between the second ends 8b of the contact fingers 5 and the longitudinal uprights 15.
  • the tool 26 rests on the branch center of the "U" shape of the transverse ends 14.
  • the tool 26 is a circular section wire bent in the shape of a rectangle, which clips into shapes arranged at the intersection of the free branches with the central branch of the transverse ends "U" shaped.
  • the invention also relates to a connection clamp device comprising a conductive support 30, and a connection clamp 1 as described above.
  • the clamp body 2 is associated with the support 30, the second jaw 9b enclosing the support.
  • the gripper body 2 and the support are associated by association means such that the gripper body 2 is free to tilt relative to the support 30 about a longitudinal tilting axis 31.
  • the association means comprise the central branches of the transverse ends 14 in the shape of a "U", each provided with a circular hole 32 of the same axis, a longitudinal bore 33 passing right through the support 30, and an axis 31.
  • the second jaw 9b encloses the support 30, the central branches of the transverse ends 14 in the shape of a "U” coming to overlap the transverse ends of the support 30, the holes come opposite the bore, the longitudinal tilt axis passing through said holes and said bore.
  • the clip at the end of making, has the appearance of FIG. 1.
  • the pliers are delivered ready to use in the appearance shown in Figures 2 to 5.
  • FIG. 6 represents the device according to the invention, the clamp being associated on the support.
  • FIG. 7 shows the device in the normal engaged position, that is to say when the bar 36 is in the same plane as the support 30.
  • FIG. 8 shows the device in the engaged position with tilting, that is to say when the clamp rocks to catch up with the play existing between the plane of the bar 36 and the plane of the support 30.
  • This type of clamp device finds its application in particular in circuit breakers disconnecting from an active position to a passive position by rotation.
  • the poles of the disconnecting circuit breakers are provided with a device according to the invention, so that when the disconnecting circuit breakers rotate, the clamps engage on the busbars.

Landscapes

  • Clamps And Clips (AREA)
  • Wire Bonding (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Multi-Conductor Connections (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Load-Engaging Elements For Cranes (AREA)
EP95402304A 1994-10-17 1995-10-16 Elektrische Kontaktklammer und Klemmvorrichtung mit einem solchen Klemmstück Expired - Lifetime EP0708462B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9412370 1994-10-17
FR9412370A FR2725838B1 (fr) 1994-10-17 1994-10-17 Pince de contact electrique, et dispositif a pince pourvu d'une telle pince

Publications (2)

Publication Number Publication Date
EP0708462A1 true EP0708462A1 (de) 1996-04-24
EP0708462B1 EP0708462B1 (de) 1999-06-09

Family

ID=9467928

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95402304A Expired - Lifetime EP0708462B1 (de) 1994-10-17 1995-10-16 Elektrische Kontaktklammer und Klemmvorrichtung mit einem solchen Klemmstück

Country Status (8)

Country Link
EP (1) EP0708462B1 (de)
CN (1) CN1077730C (de)
AT (1) ATE181175T1 (de)
BR (1) BR9504415A (de)
DE (1) DE69510154T2 (de)
ES (1) ES2132563T3 (de)
FR (1) FR2725838B1 (de)
NO (1) NO954107L (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106323483A (zh) * 2016-11-11 2017-01-11 哈尔滨理工大学 一种能测量电线温度能显示能报警的线夹
EP3439003A1 (de) * 2017-08-03 2019-02-06 Nuventura GmbH Trennschalterpol für eine gasisolierte schaltanlage

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6046415A (en) * 1998-11-12 2000-04-04 Land-Mekra North America, Llc Electric switch
CN101887069A (zh) * 2009-05-11 2010-11-17 上海市电力公司 一种用于真空开关的试验夹子
EP2690637A1 (de) * 2012-07-23 2014-01-29 ABB Technology AG Anschlussvorrichtung
TWI523343B (zh) * 2014-05-08 2016-02-21 友達光電股份有限公司 夾具
CN106848616B (zh) * 2016-12-27 2018-12-18 国网江西省电力有限公司九江供电分公司 一种电力设备中导线顶丝固紧的防松装置
CN108666159B (zh) * 2017-03-31 2019-12-24 施耐德电器工业公司 双电源转换开关
CN109830857B (zh) * 2019-04-03 2024-04-02 贵州电网有限责任公司 一种方便拆卸的双向接线柱
CN109921204B (zh) * 2019-04-03 2024-04-02 贵州电网有限责任公司 一种适用于配电终端检测的接线柱结构

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE567124A (de) *
CH323737A (de) * 1953-10-09 1957-08-15 Bbc Brown Boveri & Cie Kontaktvorrichtung
DE1092988B (de) * 1956-03-10 1960-11-17 Calor Emag Elektrizitaets Ag Elektrische Kontaktanordnung
DE1098572B (de) * 1959-02-13 1961-02-02 Licentia Gmbh Kontaktanordnung fuer Schaltgeraete zur Verbindung einander gegenueberliegender Festkontakte
US3201556A (en) * 1963-07-19 1965-08-17 Gen Electric Self-aligning disconnect assembly
US3221288A (en) * 1962-09-17 1965-11-30 Eads Connector Corp Printed circuit connector
DE2739152A1 (de) * 1977-07-20 1979-02-01 Bbc Brown Boveri & Cie Elektrische kontaktanordnung
US4555604A (en) * 1983-12-06 1985-11-26 Westinghouse Electric Corp. Circuit breaker having improved stab assembly
EP0451531A1 (de) * 1990-04-10 1991-10-16 GEC Alsthom T&D AG Elektrische Kontaktanordnung

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE567124A (de) *
CH323737A (de) * 1953-10-09 1957-08-15 Bbc Brown Boveri & Cie Kontaktvorrichtung
DE1092988B (de) * 1956-03-10 1960-11-17 Calor Emag Elektrizitaets Ag Elektrische Kontaktanordnung
DE1098572B (de) * 1959-02-13 1961-02-02 Licentia Gmbh Kontaktanordnung fuer Schaltgeraete zur Verbindung einander gegenueberliegender Festkontakte
US3221288A (en) * 1962-09-17 1965-11-30 Eads Connector Corp Printed circuit connector
US3201556A (en) * 1963-07-19 1965-08-17 Gen Electric Self-aligning disconnect assembly
DE2739152A1 (de) * 1977-07-20 1979-02-01 Bbc Brown Boveri & Cie Elektrische kontaktanordnung
US4555604A (en) * 1983-12-06 1985-11-26 Westinghouse Electric Corp. Circuit breaker having improved stab assembly
EP0451531A1 (de) * 1990-04-10 1991-10-16 GEC Alsthom T&D AG Elektrische Kontaktanordnung

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106323483A (zh) * 2016-11-11 2017-01-11 哈尔滨理工大学 一种能测量电线温度能显示能报警的线夹
EP3439003A1 (de) * 2017-08-03 2019-02-06 Nuventura GmbH Trennschalterpol für eine gasisolierte schaltanlage
WO2019025434A1 (en) * 2017-08-03 2019-02-07 Nuventura Gmbh DISCONNECT POLE FOR GAS INSULATED SWITCHING EQUIPMENT
KR20200032208A (ko) * 2017-08-03 2020-03-25 누벤투라 게엠베하 가스 절연된 스위치기어용 디스커넥터 폴
CN110945613A (zh) * 2017-08-03 2020-03-31 努文图拉有限责任公司 用于气体绝缘开关设备的隔离开关极
AU2018310636B2 (en) * 2017-08-03 2021-01-28 Nuventura Gmbh Disconnector pole for gas insulated switchgear
US11257634B2 (en) 2017-08-03 2022-02-22 Nuventura Gmbh Disconnector pole for gas insulated switchgear
CN110945613B (zh) * 2017-08-03 2022-11-29 努文图拉有限责任公司 用于气体绝缘开关设备的隔离开关极

Also Published As

Publication number Publication date
FR2725838A1 (fr) 1996-04-19
DE69510154D1 (de) 1999-07-15
ES2132563T3 (es) 1999-08-16
EP0708462B1 (de) 1999-06-09
CN1077730C (zh) 2002-01-09
NO954107D0 (no) 1995-10-16
ATE181175T1 (de) 1999-06-15
DE69510154T2 (de) 1999-12-16
NO954107L (no) 1996-04-18
FR2725838B1 (fr) 1997-01-03
CN1128415A (zh) 1996-08-07
BR9504415A (pt) 1997-05-27

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