EP1557915A2 - Unit for shunting current from bus bars - Google Patents
Unit for shunting current from bus bars Download PDFInfo
- Publication number
- EP1557915A2 EP1557915A2 EP05425011A EP05425011A EP1557915A2 EP 1557915 A2 EP1557915 A2 EP 1557915A2 EP 05425011 A EP05425011 A EP 05425011A EP 05425011 A EP05425011 A EP 05425011A EP 1557915 A2 EP1557915 A2 EP 1557915A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- unit
- electric contacts
- conductor elements
- wedges
- bus bars
- 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.)
- Withdrawn
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
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/08—Short-circuiting members for bridging contacts in a counterpart
-
- 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
- H01R13/193—Means for increasing contact pressure at the end of engagement of coupling part, e.g. zero insertion force or no friction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
- H01R25/16—Rails or bus-bars provided with a plurality of discrete connecting locations for counterparts
- H01R25/161—Details
-
- 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
- H01R13/20—Pins, blades, or sockets shaped, or provided with separate member, to retain co-operating parts together
-
- 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
- H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
- H01R4/5083—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a wedge
Definitions
- This invention relates to the filed of the bus bar electric conductors, that is prefabricated elements for the formation of electric lines which elongate to carry and distribute electric energy, and concerns in particular a unit or device for shunting current from electric bus bars.
- bus bars taken into consideration in this case, usually include bar conductor elements insulated one from the other, positioned in parallel and housed in a profile or body having means for connecting to the other similar electric conductors and means for placing in position.
- a shunting unit or device which connects to the bus bar conductor elements.
- a unit for shunting the current has, in a box shaped body, shunting contacts in the shape of flat pins or tongues, which insert between the conductor elements and to which can be connected the use or uses to be electrically powered.
- the shunting unit can be set up in connection with a switch and a safety fuse holder.
- the contact pins or tongues are pushed in and remain in contact with the conductor elements by means of flexible blade like springs which extend and act like a pincers against the face of each flat contact pin against the one which rests against the relative conductor element.
- Such a current shunting unit however appears to be complex and costly and furthermore requires robust springs to maintain the active contact position and a significant coupling power of the unit with the bus bar elements.
- the objective of this invention is to propose and provide a unit for shunting current which is easier to produce, more functional and reliable and where all the shunting contacts are movable from the outside by means of a single control element between the active and deactivated positions, the former closed on the conductor elements and the latter open, even with the bus bar live.
- a unit for shunting current from the electric conductors with bus bar conductor elements which is comprises a box shaped body closed at the top by a cover and having an extension at the bottom provided with recesses opening towards the bottom and required to receive said conductor elements, and wherein:
- the shunting unit or device 10 comprises a box shaped body 11, basically square, equipped at the top with a cover 12 and having an extension at the bottom 13, which is narrower and moreover dimensioned according to an output recess it is inserted in.
- This extension is formed by two facing primary rigid walls 14 integral with the body 11 and two facing secondary walls, 15, inserted and preferably flexible.
- the sections 17 on the sides of the bottom extension are each delimited by the flexible wall 15 and by an adjacent partition 16 in the body. Furthermore, at least on a level with said recesses a crossways recess 16' has been shaped.
- said sections 17 are housed the electric contacts 21 which are flat shaped and flexible and envisaged to come into contact with the opposite faces of the conductor elements 19 of the bus bar 20 when these conductor elements are inserted into the recesses.
- each of the intermediate sections 17 are assembled two electric contacts 21, whereas each of the lateral sections, that is those positioned towards the external, houses one single electric contact 21.
- the electric contacts 21 extend along the partitions 16 as far as the level of the recesses 18 for the conductor elements.
- Each electric contact 21 in its top section is attached to a partition adjacent to it, whereas its bottom section has a contact area 21' whose function is to rest against one side of a respective conductor element 19.
- the electric contacts 21 are connected to terminals or shunt plates 22 to which the uses to be powered are connected by means of cables.
- the electric contacts 21 flex between an open position, when they are not in contact with the conductor elements 19, and a closed position, when they approach and come into contact with said conductor elements.
- the electric contacts 21 can move from one position to the other by means of wedges 23 made of an insulating material.
- the wedges 23 are placed between every a pairs of contacts and on the sides of the individual external contacts. They can be moved axially between a retracted inactive position, where the contacts 21 are in the open position, that is not in contact with the conductor elements 19, and an active forward position where the contacts are closed on the conductor elements.
- the wedges 23 can all move at the same time from one position to the other by means of a control lever 24 attached to the cover of the body by means of a fulcrum 25 and acting on the summits of the wedges through a cap or thrust rocker 26.
- the latter is supported by the control lever 24 by means of an oscillating axis 27 and engages each wedge 23 thanks to interposed pair of springs 28.
- the lever 24 can be controlled and moved on relative fulcrum 25 between an open position 1 and a closed position 2 of the contacts 21 thanks to a load screw 29 associated and engaging with a projecting part 30 attached to the body.
- the bus bar 20 can have an output recess normally closed by a sliding protection 31, on the other hand, the shunting unit 10 can be placed on an oscillating plate 32 inside an output box 33 together with other devices, such as a switch, fuse holder and a template 34 for opening the protection 31 of the output box. Therefore to connect the shunting unit or bulb to the bus bar 20 all is required is to approach and insert the contacts 21 between the conductor elements 19 of said bus bar when the wedges are retracted in the inactive position. Then, to maintain the connection, you use the load screw 29 so as to move the control lever 24 and at the same time the wedges from the open position 1 to the closed position 2. Thanks to the action of the wedges, the electric contacts 21 can easily be pushed and held in the closed position against the conductor elements of the bus bar using minimum force and advantageously also using lighter and less bulky springs.
Landscapes
- Installation Of Bus-Bars (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Connection Or Junction Boxes (AREA)
Abstract
Description
- This invention relates to the filed of the bus bar electric conductors, that is prefabricated elements for the formation of electric lines which elongate to carry and distribute electric energy, and concerns in particular a unit or device for shunting current from electric bus bars.
- The type of bus bars taken into consideration in this case, usually include bar conductor elements insulated one from the other, positioned in parallel and housed in a profile or body having means for connecting to the other similar electric conductors and means for placing in position. In order to take-off current from said bus bars, at least along one part of their profile or body there are one or more recesses, and in line with each of them can be mounted a shunting unit or device which connects to the bus bar conductor elements.
- A unit for shunting the current according to the known technique has, in a box shaped body, shunting contacts in the shape of flat pins or tongues, which insert between the conductor elements and to which can be connected the use or uses to be electrically powered. The shunting unit can be set up in connection with a switch and a safety fuse holder. The contact pins or tongues are pushed in and remain in contact with the conductor elements by means of flexible blade like springs which extend and act like a pincers against the face of each flat contact pin against the one which rests against the relative conductor element.
- Such a current shunting unit however appears to be complex and costly and furthermore requires robust springs to maintain the active contact position and a significant coupling power of the unit with the bus bar elements.
- The objective of this invention is to propose and provide a unit for shunting current which is easier to produce, more functional and reliable and where all the shunting contacts are movable from the outside by means of a single control element between the active and deactivated positions, the former closed on the conductor elements and the latter open, even with the bus bar live.
- Such an objective is achieved, according to the invention, by using a unit for shunting current from the electric conductors with bus bar conductor elements, which is comprises a box shaped body closed at the top by a cover and having an extension at the bottom provided with recesses opening towards the bottom and required to receive said conductor elements, and wherein:
- the body and relative bottom extension are subdivided internally into sections placed in parallel and alternating with the recesses of the bottom extension,
- said sections house and hold flexible blade shaped electric contacts, extending along the sides of said recesses and movable by flexing between an open position, in which they are not touching the conductor elements and a closed position in which they are moved towards and placed in contact with said conductor elements,
- said electric contacts are associated with wedges made of an insulating material, which move axially between a retracted inactive position, in which the electric contacts are in the open position, and an active forward position, in which the electric contacts are moved towards and placed in contact with said conductor elements, and
- said wedges are associated with means of control for the simultaneous and parallel movement of the wedges between said inactive retracted position and said active forward position.
-
- The invention will however will become more evident in the continuation of this description made in reference to the enclosed indicative and not limiting drawings, in which:
- Fig. 1 shows a partial exploded view of the components of the shunting unit;
- Fig. 2 shows a view in perspective of the shunting unit as assembled;
- Fig. 3 shows a front view of the shunting unit in Fig. 2;
- Fig. 4 shows a side view;
- Fig. 5 shows a view from above;
- Fig. 6 shows a cross section according to the arrows A-A in Fig. 4;
- Fig. 7 shows an enlarge view of a detail circled in Fig. 6
- Fig. 8 shows a cross section according to the arrows B-B in Fig. 3;
- Figs. 9, 10 and 11 show the connection of the shunting unit in the field of a output box and the coupling method with a bus bar.
-
- As shown, the shunting unit or
device 10 comprises a box shapedbody 11, basically square, equipped at the top with acover 12 and having an extension at thebottom 13, which is narrower and moreover dimensioned according to an output recess it is inserted in. This extension is formed by two facing primaryrigid walls 14 integral with thebody 11 and two facing secondary walls, 15, inserted and preferably flexible. - In the box
shaped body 11 and in therelative bottom extension 13 are envisagedparallel partitions 16 which subdivide the inside into sections 17, which extend according to the height of thebody 11 and on planes parallel with the insertedwalls 15 on the two opposite sides of thebottom extension 13. In the two oppositerigid walls 14 of said bottom extension of the body there are formedrecesses 18 opening downwards, placed between the sections 17, that is in line with the partitions, and dimensioned for each to receive aconductor element 19 of anelectric bus bar 20. In the example illustrated there are five sections 17 and fourrecesses 18 between the sections, the same number ofconductor elements 19 with which the shunting unit must couple. - On a level with the
recesses 18, the sections 17 on the sides of the bottom extension are each delimited by theflexible wall 15 and by anadjacent partition 16 in the body. Furthermore, at least on a level with said recesses a crossways recess 16' has been shaped. - In said sections 17 are housed the
electric contacts 21 which are flat shaped and flexible and envisaged to come into contact with the opposite faces of theconductor elements 19 of thebus bar 20 when these conductor elements are inserted into the recesses. - More precisely, in each of the intermediate sections 17 are assembled two
electric contacts 21, whereas each of the lateral sections, that is those positioned towards the external, houses one singleelectric contact 21. Theelectric contacts 21 extend along thepartitions 16 as far as the level of therecesses 18 for the conductor elements. Eachelectric contact 21 in its top section is attached to a partition adjacent to it, whereas its bottom section has a contact area 21' whose function is to rest against one side of arespective conductor element 19. Moreover, theelectric contacts 21 are connected to terminals orshunt plates 22 to which the uses to be powered are connected by means of cables. - The
electric contacts 21 flex between an open position, when they are not in contact with theconductor elements 19, and a closed position, when they approach and come into contact with said conductor elements. Theelectric contacts 21 can move from one position to the other by means ofwedges 23 made of an insulating material. - As shown in particular in Fig. 6, the
wedges 23 are placed between every a pairs of contacts and on the sides of the individual external contacts. They can be moved axially between a retracted inactive position, where thecontacts 21 are in the open position, that is not in contact with theconductor elements 19, and an active forward position where the contacts are closed on the conductor elements. Thewedges 23 can all move at the same time from one position to the other by means of acontrol lever 24 attached to the cover of the body by means of afulcrum 25 and acting on the summits of the wedges through a cap orthrust rocker 26. The latter is supported by thecontrol lever 24 by means of anoscillating axis 27 and engages eachwedge 23 thanks to interposed pair ofsprings 28. Thelever 24 can be controlled and moved onrelative fulcrum 25 between an open position 1 and a closedposition 2 of thecontacts 21 thanks to aload screw 29 associated and engaging with a projectingpart 30 attached to the body. - As shown in Figs. 9 - 11, on one hand the
bus bar 20 can have an output recess normally closed by asliding protection 31, on the other hand, theshunting unit 10 can be placed on anoscillating plate 32 inside anoutput box 33 together with other devices, such as a switch, fuse holder and atemplate 34 for opening theprotection 31 of the output box. Therefore to connect the shunting unit or bulb to thebus bar 20 all is required is to approach and insert thecontacts 21 between theconductor elements 19 of said bus bar when the wedges are retracted in the inactive position. Then, to maintain the connection, you use theload screw 29 so as to move thecontrol lever 24 and at the same time the wedges from the open position 1 to the closedposition 2. Thanks to the action of the wedges, theelectric contacts 21 can easily be pushed and held in the closed position against the conductor elements of the bus bar using minimum force and advantageously also using lighter and less bulky springs.
Claims (6)
- A Unit for shunting current from bus bars, comprising a box shaped body closed at the top by a cover and having an extension at the bottom provided with recesses opening downwards and designed to receive said conductor elements, characterised in that:said body and relative bottom extension are subdivided internally into sections (17) placed in parallel and alternating with the recesses (18) of said bottom extension,said sections (17) house and hold flexible blade shaped electric contacts (21) running along the sides of said recesses (18) and flexing between an open position, in which they are not in contact with the conductor elements (19), and a closed position in which they are made to approach and come into contact with said conductor elements in said recesses,said electric contacts (21) are associated with wedges (23) made of an insulating material and which move axially between a retracted inactive position, in which the electric contacts (21) are in the open position, and an active forward position, in which the electric contacts are made to approach and come into contact with the conductor elements, andsaid wedges (23) are associated with means of control (24, 26, 28, 29) for the simultaneous and parallel movement of the wedges between said inactive retracted position and said active forward position.
- A unit for shunting current from bus bars according to claim 1, in which said control means of the wedges (23) comprise a control lever (23) the fulcrum of which is the cover of the body and engaging the summits of said wedges by means of a thrust rocker (26), and wherein said oscillating rocker assembled on said control lever engages each wedge (23) by means of interposed pairs of springs (28) resting on the summit of the wedge.
- A unit for shunting current from bus bars according to claim 1, in the control lever (24) is associated with a load screw (29) engaging with a fixed projecting part for the movement of said lever between the open position (1) and the closed position (2) of the electric contacts (21) of the conductor elements of the bus bar.
- A unit for shunting current from bus bars according to the previous claims, in which the sections (17) of said box shaped body and relative bottom extension are formed by parallel partitions (16), to which the flexible blade shaped electric contacts (21) are fixed at the top and each having at the bottom a contact zone (21) which is made to rest against a side of a respective conductor element when the latter is housed in a respective recess of said bottom extension of the body, the electric contacts being connected to shunt terminals or plates which can be connected to uses requiring electric power.
- A unit for shunting current from bus bars according to claim 4, in which the sections (17) of said bottom extension is formed by two rigid opposite walls integral with the box shaped body and by two further opposite walls, inserted and fixed to said body and preferably flexible, the housing recesses of the conductor elements in said opposite walls being rigid, whereas the two other inserted walls are in contact with the adjacent wedges.
- A unit for shunting current from bus bars according to the previous claims, which is assembled, together with other devices, on an oscillating plate positioned inside a outlet box which can be coupled with a outlet recess in a bus bar, said box being equipped if required with a template for opening said recess when closed by a covering, protective element.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITBS20040007 ITBS20040007A1 (en) | 2004-01-20 | 2004-01-20 | UNIT FOR THE DERIVATION OF CURRENT FROM ELECTRIC DUCTS TO BARS |
ITBS20040007 | 2004-01-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1557915A2 true EP1557915A2 (en) | 2005-07-27 |
EP1557915A3 EP1557915A3 (en) | 2007-05-30 |
Family
ID=34631148
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05425011A Withdrawn EP1557915A3 (en) | 2004-01-20 | 2005-01-13 | Unit for shunting current from bus bars |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1557915A3 (en) |
CN (1) | CN100459342C (en) |
IT (1) | ITBS20040007A1 (en) |
MY (1) | MY144507A (en) |
SG (1) | SG113590A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2200127A1 (en) * | 2008-12-22 | 2010-06-23 | Hirschmann Automotive GmbH | Connector assembly |
ITBS20090006A1 (en) * | 2009-01-15 | 2010-07-16 | Bbi Electric Spa | UNIT OF CURRENT SOCKET FOR ELECTRIC DUCTS WITH PREFABRICATED BARS |
WO2020167266A1 (en) * | 2019-05-17 | 2020-08-20 | Eae Elektrik Asansor Endustrisi Insaat Sanayi Ve Ticaret Anonim Sirketi | A conductor apparatus stopper for busbar |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103944027B (en) * | 2014-05-22 | 2016-08-24 | 钟婕 | A kind of plug-in type shunting electricity row's box |
CN106129755B (en) * | 2016-06-02 | 2018-03-20 | 国家电网公司 | A kind of electric power adapter |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR72037E (en) * | 1957-05-25 | 1960-03-21 | Electrical terminal couplers | |
US3209301A (en) * | 1960-09-12 | 1965-09-28 | Fed Pacific Electric Co | Plug-in bus duct |
DE19524123C1 (en) * | 1995-05-26 | 1997-02-13 | Phoenix Contact Gmbh & Co | DIN rail and connector for coupling to a DIN rail |
US20030031018A1 (en) * | 2001-05-23 | 2003-02-13 | Bray Douglas R. | Rail lighting system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3772482A (en) * | 1971-03-04 | 1973-11-13 | Us Safety Trolley Corp | Multiple trolley conductor unit |
CN2337665Y (en) * | 1998-03-27 | 1999-09-08 | 沈阳市盛京照明器材厂 | Separating altitude jack switch positioning device |
DE10022639C1 (en) * | 2000-04-28 | 2001-10-04 | Siemens Ag | Right angle connector joining main bus bar to e.g. switchgear, comprises two joined sections having offset, non-intersecting contact surfaces |
CA2363530A1 (en) * | 2001-11-20 | 2003-05-20 | Fci Americas Technology Inc. | Semi-permanent connection between a bus bar and a connector contact |
-
2004
- 2004-01-20 IT ITBS20040007 patent/ITBS20040007A1/en unknown
-
2005
- 2005-01-13 EP EP05425011A patent/EP1557915A3/en not_active Withdrawn
- 2005-01-17 SG SG200500420A patent/SG113590A1/en unknown
- 2005-01-17 MY MYPI20050173 patent/MY144507A/en unknown
- 2005-01-19 CN CNB2005100027147A patent/CN100459342C/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR72037E (en) * | 1957-05-25 | 1960-03-21 | Electrical terminal couplers | |
US3209301A (en) * | 1960-09-12 | 1965-09-28 | Fed Pacific Electric Co | Plug-in bus duct |
DE19524123C1 (en) * | 1995-05-26 | 1997-02-13 | Phoenix Contact Gmbh & Co | DIN rail and connector for coupling to a DIN rail |
US20030031018A1 (en) * | 2001-05-23 | 2003-02-13 | Bray Douglas R. | Rail lighting system |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2200127A1 (en) * | 2008-12-22 | 2010-06-23 | Hirschmann Automotive GmbH | Connector assembly |
ITBS20090006A1 (en) * | 2009-01-15 | 2010-07-16 | Bbi Electric Spa | UNIT OF CURRENT SOCKET FOR ELECTRIC DUCTS WITH PREFABRICATED BARS |
WO2010082225A1 (en) * | 2009-01-15 | 2010-07-22 | Bbi Electric S.P.A. | Current socket unit for prefabricated electric bus-bar ducts |
WO2020167266A1 (en) * | 2019-05-17 | 2020-08-20 | Eae Elektrik Asansor Endustrisi Insaat Sanayi Ve Ticaret Anonim Sirketi | A conductor apparatus stopper for busbar |
Also Published As
Publication number | Publication date |
---|---|
ITBS20040007A1 (en) | 2004-04-20 |
CN1645700A (en) | 2005-07-27 |
EP1557915A3 (en) | 2007-05-30 |
MY144507A (en) | 2011-09-30 |
CN100459342C (en) | 2009-02-04 |
SG113590A1 (en) | 2005-08-29 |
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