US3820057A - Busway connector - Google Patents

Busway connector Download PDF

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Publication number
US3820057A
US3820057A US00331267A US33126773A US3820057A US 3820057 A US3820057 A US 3820057A US 00331267 A US00331267 A US 00331267A US 33126773 A US33126773 A US 33126773A US 3820057 A US3820057 A US 3820057A
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US
United States
Prior art keywords
insulating plates
ramp
plates
rod
pair
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.)
Expired - Lifetime
Application number
US00331267A
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English (en)
Inventor
J Joly
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.)
Telemecanique SA
Original Assignee
La Telemecanique Electrique 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 La Telemecanique Electrique SA filed Critical La Telemecanique Electrique SA
Application granted granted Critical
Publication of US3820057A publication Critical patent/US3820057A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G5/00—Installations of bus-bars
    • H02G5/007—Butt joining of bus-bars by means of a common bolt, e.g. splice joint

Definitions

  • ABSTRACT Fish device for the electrical joining of conductors.
  • the ends of the bars are pinched between contact plates simultaneously subjected to a well-distributed flexible compressive force developed along an axis on which they are stacked and limited in size by a sliding system.
  • the device is applied to electric current-distributor cables containing bus-bars.
  • the invention relates to a fish device for electrically connecting sets of current-distributor bus-bars placed end to end, including a common clamping component consisting of a cylindrical pull-rod fitted with mobile ramps cooperating by rotation with fixed ramps and a plurality of contact plates each associated with an insulating cheek and threaded on the pull-rod so that the relative movement of the ramps is translated by a simultaneous axial flexible compression of the contact plates on the bars.
  • Such a device is particularly applicable to current transport systems usingbus-bars protected by a metal sheath.
  • the device providing the flexibility can be subjected to a high strain which will be translated by a locking of the ends of the bus-bars which is detrimental to the extent to which it destroys the freedom of movement of these ends under the effect of thermal dilatations.
  • the units used to produce this flexible effect are only flexible when they are assembled in a specific way, which gives rise to the possibility of malfunction due to assembly errors.
  • the invention thus proposes to provide a .fish system in which steps will be taken to ensure that the unit pressures exerted on the insulators are low and independent of the movement which may be imparted to the compression device.
  • this result is achieved by means of the fact that the axial compression movement of the flexible components, which are distributed between the facing insulating cheeks of two neighbouring bars, is interrupted when a friction couple exceeding a specific value is developed between the ramps.
  • each of the flexible components consists of two symmetrical, flat units having a bearing surface similar to that of the contact plates, between which is arranged a plurality of springs distributed substantially symmetrically in relation to the axis of the pull-rod on which each component is threaded.
  • the fixed ramps consist of four portions with helical surfaces arranged at an angle of 90 to one another and each having in the vicinity of its highest area a hollow into which ratches a projection representing one of four mobile ramps carried by one same disc, rotatingly mobile and fitted with a control lever.
  • FIG. 1 shows an elevation view of the fish with a partial section along the axis of the protective sheath.
  • FIG. 2 shows a split section view of the fish along the line AA.
  • FIG. 3 shows an elevation view of the fish when the locking device is loosened.
  • FIG. .4 shows a sectional view of a variant.
  • FIG. 5 shows a left-hand view of FIG. 4.
  • FIG. 6 illustrates an embodimental detail of the fixed and mobile ramps.
  • FIG. 1 which illustrates a general view of the apparatus 1, shows a length of metal sheath, rectangular in section, which is designed to provide electrical and mechanicalprotection for bus-bars transporting industrial current.
  • the fish device represented by the general reference 5 serves to provide the electrical and mechanical connection between the ends of two sets of bars 7 and 8.
  • a rectangular opening 4 through which the fish device will be inserted vertically from top to bottom. This latter is held laterally by the edges of the opening 4 and vertically by protuberances 6 placed on the top of it.
  • the compressing device which bears the general 9 is in particular equipped with an operating lever 10 the end of which comes to a position in the vicinity of a cover 2 pivoted at 3 on the sheath 1. In FIG. 1, the levers position corresponds to the compressed position of the fish device.
  • FIG. 2 shows that the system as a whole is arranged inside the piping and that consequently the compressing device can only be operated with the cover open.
  • 7, 7', 7", 7" denote the ends of a set of bus-bars; each of these ends comes to aposition between two contact plates of identical shape '11, 12 with, in the middle part thereof, protuberances 13 and 14 also visible in dotted lines in FIG. 1.
  • These protuberances belonging to plates 12 and 11 can come incontact when the ends of the bars 7 are not engaged between the contact plates but do not touch in the opposite case.
  • each of the contact plates 12 and l 1 there is associated an insulating cheek 16 and 17 respectively, designed on the one hand to keep the plates in position by means of a special hollow, and on the other hand to transmit and/or receive a lateral thrust to/from the corresponding components associated with the bars 7 7", 7".
  • Each of these insulating checks which are made of a suitable plastic material so that they do not creep under a clearly specified load, has a centring barrel 18 and 19 respectively which encase with one another, the barrel l9 moreover serving to preserve an adequate escape line with a metal compression rod 20 on which it is mounted. It is clear that the contact plates 11 and 12 will also be provided with openings sufficient to enable them to be mounted around the barrel 18.
  • the end of the neighbouring bar 7 which is similarly equipped with cheeks 16', 17' is associated with the neighbouring cheeks by guide components and flexible units.
  • the check 16' opposite the check 17 of the neighbouring bar is fitted with a nipple 24 which penetrates into a housing 25 in the latter. Similar measures are moreover taken on all the cheeks to ensure proper alignement.
  • the guiding device which has just been described moreover makes it possible to ensure the proper working of a generally flat-shaped flexible unit which is positioned and held between two opposite cheeks such as 16' and 17 and which is made up of two shoes 22 and 23 of the same shape which can encase with each other, with play, by turning.
  • Springs such as 21, 21 are arranged between the two shoes and stretch to separate these.
  • the embodiment selected for the flexible components means that an extremely flat component is available whose rigidity may be selected as a function of requirements; moreover, the symmetrical layout provides absolute safety on assembly; finally, the whole unit does not need to be prepared when assembly is done and can be stored or even coupled to meet load balancing requirements.
  • the compression device 9 consists in particular of a bearing plate 28 which is housed in an external hollow of the cheek l6 and threaded on the compression rod.
  • This bearing plate carries on its outside surface four projections obtained by stamping and forming four helical ramp portions 29, 29', 29", 29", see FIG. 3 in particular.
  • Each of these ramps arranged at an angle of 90, comprises in the area close to the summit a hollow 30 which precedes by a short distance the side edge 33 where the ramp comes to an end.
  • the stop plate 27 consists of a disc fitted with three arms 31 and a control lever positioned at, an angle of 90 to one another. All the arms and the lever are ribbed so as to mark out ramp portions 32 (see also FIG. 6) designed to cooperate with the ramps 29.
  • ramp portions 32 see also FIG. 6
  • This position which is the working position, corresponds to the judicious compression of the bars between the contact plates and must not be exceeded. If any attempt were made to increase the compressive force, the ramp 32 would come out of the hollow and break the mechanical contact, so
  • FIGS. 4 and 5 An embodiment variant illustrated in FIGS. 4 and 5 makes use of a compression rod 40 comprising at one end an operating head 41 suitable to take a key and at the other end a threaded portion 42 the thread of which represents the mobile ramp.
  • the fixed ramp cooperating with the latter consists of the inside thread of a solid body 43 generally revolving in shape comprising flat surfaces 47 and peaks 48.
  • Two pring blades 46, 46 held in grooves 49 in a bearing plate 44 are applied against the flat surfaces to stop the rotation of the solid body 43.
  • the unit operates like a bolt in a nut until such time as the axial compressive force causes 43 to be driven by 42 counter to the flexible force of the spring blades.
  • a component 45 with very good slip characteristics.
  • the choice will fall on materials possessing very good antifriction properties, perhaps even radial needle bearings.
  • a connector for an electric line fitted with bars comprising:
  • a pair of contact elements (11, 12), each arranged against the side of each insulating plate directed towards the other plate of said pair of plates, said contact elements (l1, 12) being separated by an interval of approximately the thickness of the bus bars and being of a length such that they rest on the portions of bus bars inserted between the insulating plates of said pair;
  • a first and a second clamping plate (26, 28) arranged respectively against the sides of the most distant insulating plates belonging to the first and last plate of said large number of pairs of plates;
  • limiting means to interrupt relative axial movement between the ramp and the clamping means when a predetermined compression of the elastic components has been reached.
  • a connector according to claim 1 in which said supporting devices bear on said insulating plates on a surface close to the surface of application of said contact elements on said insulating plates.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Installation Of Bus-Bars (AREA)
  • Clamps And Clips (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Cable Accessories (AREA)
US00331267A 1972-02-22 1973-02-09 Busway connector Expired - Lifetime US3820057A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7205834A FR2173375A5 (enrdf_load_stackoverflow) 1972-02-22 1972-02-22

Publications (1)

Publication Number Publication Date
US3820057A true US3820057A (en) 1974-06-25

Family

ID=9093872

Family Applications (1)

Application Number Title Priority Date Filing Date
US00331267A Expired - Lifetime US3820057A (en) 1972-02-22 1973-02-09 Busway connector

Country Status (11)

Country Link
US (1) US3820057A (enrdf_load_stackoverflow)
JP (1) JPS5327835B2 (enrdf_load_stackoverflow)
AU (1) AU5214873A (enrdf_load_stackoverflow)
BE (1) BE795078A (enrdf_load_stackoverflow)
BR (1) BR7301244D0 (enrdf_load_stackoverflow)
CA (1) CA978613A (enrdf_load_stackoverflow)
ES (1) ES411906A1 (enrdf_load_stackoverflow)
FR (1) FR2173375A5 (enrdf_load_stackoverflow)
GB (1) GB1418064A (enrdf_load_stackoverflow)
SE (1) SE390471B (enrdf_load_stackoverflow)
ZA (1) ZA73864B (enrdf_load_stackoverflow)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032207A (en) * 1976-06-21 1977-06-28 General Electric Company High current electrical joint apparatus
US4033660A (en) * 1976-08-16 1977-07-05 General Electric Company High current electrical joint apparatus
US4213003A (en) * 1978-02-15 1980-07-15 Carlson Elmer T Bus conduit electrical distribution system
US4214799A (en) * 1979-08-01 1980-07-29 Bunker Ramo Corporation Movable and pre-wired wall structure
US20120118605A1 (en) * 2010-11-17 2012-05-17 Schneider Electric USA, Inc. Busbar clamping systems
US8669472B2 (en) 2011-08-26 2014-03-11 Schneider Electric USA, Inc. Applying compression to busbars in a busway assembly
US8847088B2 (en) 2011-09-22 2014-09-30 General Electric Company Cover mounted handle operating mechanism with integrated interlock assembly for a busplug enclosure
US8864510B2 (en) * 2012-10-31 2014-10-21 Schneider Electric USA, Inc. Bolt free electrical bus connector
WO2015036303A1 (de) * 2013-09-16 2015-03-19 Siemens Aktiengesellschaft Vorrichtung zur verbindung einer ersten stromschiene mit einer zweiten stromschiene
US9071028B2 (en) * 2010-11-02 2015-06-30 Sma Solar Technology Ag Electrical connection between two busbars made of flat conductors and of an insulating layer disposed between the conductors
CN106300180A (zh) * 2016-08-27 2017-01-04 威腾电气集团股份有限公司 一种低压母线槽用接头器
CN108242791A (zh) * 2017-08-07 2018-07-03 浩翔电气集团有限公司 一种风电母线安装方法
US10796825B1 (en) * 2018-02-12 2020-10-06 Travis James Cronkrite Modular bus bar insulator
IT202000014110A1 (it) * 2020-06-12 2021-12-12 Iam Industrial Asset Man S R L Blocco di giunzione per moduli di blindosbarra
CN117154446A (zh) * 2023-08-23 2023-12-01 镇江加勒智慧电力科技股份有限公司 一种母线槽单元旋转取电连接器
US20240372335A1 (en) * 2021-04-22 2024-11-07 Hager Industrie Ag Plug-in socket system
EP4531217A1 (en) * 2023-09-29 2025-04-02 Eaton Intelligent Power Limited Busway joint with a securing system

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2432777A1 (fr) * 1978-07-31 1980-02-29 Telemecanique Electrique Dispositif de connexion pour des extremites de barres omnibus disposees dans une gaine
JPS55102180A (en) * 1979-01-31 1980-08-05 Kyodo Denki Device for connecting bus duct
ES2060517B1 (es) * 1992-08-05 1995-05-01 Garcia Maurino De Vigo Luis Perfeccionamientos en los sistemas de distribucion, union y conexion de los medios de conduccion electrica.
FR2771220B1 (fr) * 1997-11-17 2000-01-14 Auxel Connexion electrique sur une plaque conductrice d'un appareil pour l'alimentation en courant d'un composant, plaque pourvue de ladite connexion et appareil equipe de ladite plaque
MY151898A (en) * 2006-08-24 2014-07-14 Lew Chih Bok Motorised bus duct joint
CN110518421B (zh) * 2019-08-26 2021-01-29 华为技术有限公司 母线槽连接器及供电设备

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032207A (en) * 1976-06-21 1977-06-28 General Electric Company High current electrical joint apparatus
US4033660A (en) * 1976-08-16 1977-07-05 General Electric Company High current electrical joint apparatus
US4213003A (en) * 1978-02-15 1980-07-15 Carlson Elmer T Bus conduit electrical distribution system
US4214799A (en) * 1979-08-01 1980-07-29 Bunker Ramo Corporation Movable and pre-wired wall structure
US9071028B2 (en) * 2010-11-02 2015-06-30 Sma Solar Technology Ag Electrical connection between two busbars made of flat conductors and of an insulating layer disposed between the conductors
US20120118605A1 (en) * 2010-11-17 2012-05-17 Schneider Electric USA, Inc. Busbar clamping systems
US8669472B2 (en) 2011-08-26 2014-03-11 Schneider Electric USA, Inc. Applying compression to busbars in a busway assembly
US8847088B2 (en) 2011-09-22 2014-09-30 General Electric Company Cover mounted handle operating mechanism with integrated interlock assembly for a busplug enclosure
US8864510B2 (en) * 2012-10-31 2014-10-21 Schneider Electric USA, Inc. Bolt free electrical bus connector
CN105531889A (zh) * 2013-09-16 2016-04-27 西门子公司 用于连接第一汇流排和第二汇流排的设备
WO2015036303A1 (de) * 2013-09-16 2015-03-19 Siemens Aktiengesellschaft Vorrichtung zur verbindung einer ersten stromschiene mit einer zweiten stromschiene
US20160197463A1 (en) * 2013-09-16 2016-07-07 Siemens Aktiengesellschaft Device for connecting a first bus bar to a second bus bar
US9923352B2 (en) * 2013-09-16 2018-03-20 Siemens Aktiengesellschaft Device for connecting a first bus bar to a second bus bar
CN106300180A (zh) * 2016-08-27 2017-01-04 威腾电气集团股份有限公司 一种低压母线槽用接头器
CN108242791A (zh) * 2017-08-07 2018-07-03 浩翔电气集团有限公司 一种风电母线安装方法
CN108242791B (zh) * 2017-08-07 2024-04-09 浩翔电气集团有限公司 一种风电母线安装方法
US10796825B1 (en) * 2018-02-12 2020-10-06 Travis James Cronkrite Modular bus bar insulator
IT202000014110A1 (it) * 2020-06-12 2021-12-12 Iam Industrial Asset Man S R L Blocco di giunzione per moduli di blindosbarra
US20240372335A1 (en) * 2021-04-22 2024-11-07 Hager Industrie Ag Plug-in socket system
CN117154446A (zh) * 2023-08-23 2023-12-01 镇江加勒智慧电力科技股份有限公司 一种母线槽单元旋转取电连接器
CN117154446B (zh) * 2023-08-23 2024-05-28 镇江加勒智慧电力科技股份有限公司 一种母线槽单元旋转取电连接器
EP4531217A1 (en) * 2023-09-29 2025-04-02 Eaton Intelligent Power Limited Busway joint with a securing system

Also Published As

Publication number Publication date
GB1418064A (en) 1975-12-17
JPS5327835B2 (enrdf_load_stackoverflow) 1978-08-10
ES411906A1 (es) 1976-01-01
SE390471B (sv) 1976-12-20
BE795078A (fr) 1973-05-29
BR7301244D0 (pt) 1974-02-19
DE2308778A1 (de) 1973-08-30
JPS4897082A (enrdf_load_stackoverflow) 1973-12-11
AU5214873A (en) 1974-08-15
DE2308778B2 (de) 1976-05-06
FR2173375A5 (enrdf_load_stackoverflow) 1973-10-05
ZA73864B (en) 1973-11-28
CA978613A (en) 1975-11-25

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