EP3894739A1 - Busway - Google Patents

Busway

Info

Publication number
EP3894739A1
EP3894739A1 EP19829312.8A EP19829312A EP3894739A1 EP 3894739 A1 EP3894739 A1 EP 3894739A1 EP 19829312 A EP19829312 A EP 19829312A EP 3894739 A1 EP3894739 A1 EP 3894739A1
Authority
EP
European Patent Office
Prior art keywords
electric cables
primary electric
tubular body
busway
led strips
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Withdrawn
Application number
EP19829312.8A
Other languages
German (de)
French (fr)
Inventor
Ernesto Santini
Fabio BINDA
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.)
BTicino SpA
Original Assignee
BTicino SpA
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 BTicino SpA filed Critical BTicino SpA
Publication of EP3894739A1 publication Critical patent/EP3894739A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • 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
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0437—Channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • 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
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/30—Installations of cables or lines on walls, floors or ceilings
    • H02G3/32—Installations of cables or lines on walls, floors or ceilings using mounting clamps

Definitions

  • the present invention relates to a busway employed particularly in the electrical engineering sector.
  • busways are prefabricated electrical ducts used to carry a plurality of electrical cables of a system, for example four, six, eight, outside of walls in total safety.
  • known busways comprise a tubular body made of metal such as iron, galvanised steel, stainless steel or aluminium, depending on the required performance .
  • Busways can generally be suspended from the ceiling using tie-rods or brackets, or may be stably fixed to walls, or may be left running along pathways on the floor.
  • busways can be connected to each other using suitable couplings to form external electrical distribution pathways.
  • busways have electrical sockets connected to some of the electrical cables carried inside the busways; this makes it possible to connect electrical devices, particularly lamps, to the electrical sockets using plugs.
  • the electrical sockets on the busways are typically configured according to proprietary standards, as are the related plugs. Commercially available lamps are not fitted with these plugs so electrical connections must be made directly in the field between the lamps and the plugs belonging to the proprietary standard required for the busway. This clearly implies an increase in the installation times, and therefore in the related costs, of lighting systems powered by busway. Electrical sockets are also commonly covered by openable flaps to protect them from external agents such as water and dust when they are not used. This entails an additional increase in busway production costs. Lighting systems with busways are therefore costly and involve not only the suppliers of busways but also the suppliers of lamps arranged to be connected to the busways.
  • the object of the present invention is to overcome the drawbacks mentioned above, and particularly to provide a busway that simplifies the installation of surface- mounted lighting systems and makes it less costly.
  • FIG. 1 is a perspective schematic view of a busway according to the prior art
  • FIG. 2 is a perspective schematic view of a busway according to the present invention, partially assembled
  • FIG. 3 is a schematic view of a first embodiment of a busway according to the present invention.
  • FIG. 4 is a schematic view of a second embodiment of a busway according to the present invention.
  • - figure 5 is a schematic view of a third embodiment of a busway according to the present invention
  • - figure 6 is a perspective schematic view of a detail of figures 2, 3-5.
  • busway is shown, indicated overall with reference number 10.
  • the busway 10 comprises a tubular body 11 having a longitudinal development defining a longitudinal through duct 12, and a plurality of primary electric cables 13 that run inside the longitudinal duct 12.
  • the primary electric cables 13 may be wrapped in a protective insulating sheath 14 as can be observed in figures 2, 3-5.
  • the longitudinal ends of the tubular body 11 may be removably coupled to capping elements for example in plastic .
  • the tubular body 11 is also predisposed for being coupled to other busways directly or indirectly using suitable coupling elements.
  • suitable coupling elements To be able to couple two busways 10 it is first necessary to remove the capping elements from the ends, make the electrical connections between the primary electric cables 13 leading from the busways 10; the coupling may be slide-in or slot-in but in any case it is necessary to stably fix the two busways with fixing elements such as screws or bolts.
  • the tubular body 11 may have a transverse cross-section of any shape, e.g. substantially quadrangular.
  • the tubular body 11 is preferably in metallic material, e.g. aluminium.
  • the busway 10 also comprises at least one LED strip 15 applied to a wall of the tubular body and connected electrically to the respective primary electric cables 13 of the plurality of primary electric cables 13.
  • LED strip refers to a printed circuit board on which a plurality of LED diodes are arranged in succession.
  • the LED strips can be powered at very low voltage, which means a voltage of not more than 60V in direct current.
  • the LED strips can be powered at 12 V or 24 V in direct current by specific power supplies or transformers .
  • each LED strip 15 extends for at least a length section of the tubular body 11 and is connected to the respective primary electric cables 13 at a longitudinal end of the tubular body 11.
  • each LED strip 15 is associated at one end to a first electrical connector 16 that is also applied to the tubular body 11.
  • the first electrical connector 16 is then electrically connected by means of secondary electric cables 17 to the respective primary electric cables 13.
  • the secondary electric cables 17 pass through the wall of the tubular body 11 at preset openings in the wall, penetrate inside the longitudinal duct and are connected to the primary electric cables 13 by means of second electrical connectors 18.
  • the preset openings may be closed by means of closing elements in drilled plastic.
  • These second electrical connectors 18 are connected on one part to the primary electric cables 13 and on the other to the secondary electric cables 17.
  • the second electrical connectors 18 may be made in the shape of metal rings as illustrated in detail in figure 5, which are fitted onto the primary electric cables 13 to come into contact with the respective electrical conductors .
  • the second electrical connectors 18 are illustrated in the figures decoupled from the primary electric cables 13 for greater clarity; however, in the figures arrows are also represented to indicate the coupling when used between the second electrical connectors 18 and the primary electric cables 13.
  • the secondary electric cables 17 may be connected to the second electrical connectors 18 in any manner, e.g. by means of welding.
  • connection between the primary electric cables 13 and the secondary electric cables 17 is done on one longitudinal end of the tubular body 11.
  • the busway 10 comprises a plurality of said LED strips 15. The greater the number of LED strips applied to the tubular body 11 of the busway 10 the greater the lighting capacity of the latter.
  • each LED strip 15 is covered by an optical diffuser 19 used to see a diffused rather than a punctual light. Furthermore, the optical diffuser 19 provides protection for the printed circuit board of the LED strip 15 against external agents such as water and dust .
  • the LED strips 15 are covered by a single optical diffuser 21.
  • the optical diffusers 19, 21 can be made for example of plastic .
  • the selective switching of each one is preferably arranged .
  • the first electrical connectors 16 of the respective LED strips 15 may have a first terminal, for example negative, connected to the same primary electric cable 13 and a second terminal, for example positive, selectively connected to a primary electric cable 13 addressed to the respective LED strip 15.
  • the selective connection between the second terminal and the addressed primary electric cable 13 is preferably made by means of a controllable switch.
  • the LED strips 15 may be switched on or off alternately or at the same time.
  • the terminals of all the first electrical connectors 16 of the LED strips 15 of a busway 10 may be connected to the same primary electric cables 13. In this way the LED strips 15 are switched on or off at the same time.
  • the busway 10 further comprises one or more electrical sockets 20 pre-connected to the primary electric cables 13 not connected to the LED strips 15.
  • the busway being provided with pre-wired LED strips is already predisposed for lighting the surrounding area.
  • the busway according to the present invention therefore has a dual function as a lighting body and a guide and supporting body for the electrical distribution cables. It is therefore not necessary to connect lamps to the busways given that the lighting is assured by the LED strips; this implies that, compared to known busways, it is no longer necessary to purchase lamps and perform wiring operations in order to equip these lamps with plugs complying with proprietary standards.
  • the busway does not necessarily have to be equipped with electrical sockets.
  • the present invention therefore allows a reduction in the times and costs for implementation of a lighting system for areas not reached by the buried electrical distribution system.
  • the heat developed by the LED strips is then effectively dissipated by the metallic tubular body of the busway they are applied to.
  • busway as conceived herein is susceptible to many modifications and variations, all falling within the invention; furthermore, all the details are replaceable by technically equivalent elements.
  • materials used, as well as the dimensions thereof, can be of any type according to the technical requirements.

Abstract

The present invention relates to a busway (10), particularly used in the electrical engineering sector, comprising: a tubular body (11) having a longitudinal development defining a longitudinal through duct (12); a plurality of primary electric cables (13) that run inside the longitudinal duct (12); a plurality of LED strips (15) stably applied to a wall of the tubular body (11) and electrically connected to the respective primary electric cables (13) of the plurality of primary electric cables (13), each of the LED strips (15) being associated at one end to a first electrical connector (16) applied to the tubular body (11), the first electrical connector (16) being electrically connected by means of secondary electric cables (17) to the respective primary electric cables (13), the first electrical connectors (16) of the LED strips (15) having a first terminal electrically connected to the same primary electric cable (13) and a second terminal selectively connected to a primary electric cable (13) addressed to the respective LED strip (15).

Description

BUSWAY
The present invention relates to a busway employed particularly in the electrical engineering sector.
As it is known, busways are prefabricated electrical ducts used to carry a plurality of electrical cables of a system, for example four, six, eight, outside of walls in total safety.
Generally, known busways comprise a tubular body made of metal such as iron, galvanised steel, stainless steel or aluminium, depending on the required performance .
Busways can generally be suspended from the ceiling using tie-rods or brackets, or may be stably fixed to walls, or may be left running along pathways on the floor.
In fact, busways can be connected to each other using suitable couplings to form external electrical distribution pathways.
Furthermore, busways have electrical sockets connected to some of the electrical cables carried inside the busways; this makes it possible to connect electrical devices, particularly lamps, to the electrical sockets using plugs. The electrical sockets on the busways are typically configured according to proprietary standards, as are the related plugs. Commercially available lamps are not fitted with these plugs so electrical connections must be made directly in the field between the lamps and the plugs belonging to the proprietary standard required for the busway. This clearly implies an increase in the installation times, and therefore in the related costs, of lighting systems powered by busway. Electrical sockets are also commonly covered by openable flaps to protect them from external agents such as water and dust when they are not used. This entails an additional increase in busway production costs. Lighting systems with busways are therefore costly and involve not only the suppliers of busways but also the suppliers of lamps arranged to be connected to the busways.
The object of the present invention is to overcome the drawbacks mentioned above, and particularly to provide a busway that simplifies the installation of surface- mounted lighting systems and makes it less costly.
This and other objects according to the present invention are achieved by providing a busway as set out in claim 1.
Further features of the busway are the subject matter of the dependent claims.
The features and advantages of a busway according to the present invention will result more apparent from the following description, which is to be understood as exemplifying and not limiting, with reference to the schematic attached drawings, wherein:
- figure 1 is a perspective schematic view of a busway according to the prior art;
- figure 2 is a perspective schematic view of a busway according to the present invention, partially assembled;
- figure 3 is a schematic view of a first embodiment of a busway according to the present invention;
- figure 4 is a schematic view of a second embodiment of a busway according to the present invention;
- figure 5 is a schematic view of a third embodiment of a busway according to the present invention; - figure 6 is a perspective schematic view of a detail of figures 2, 3-5.
With reference to the figures, a busway is shown, indicated overall with reference number 10.
The busway 10 comprises a tubular body 11 having a longitudinal development defining a longitudinal through duct 12, and a plurality of primary electric cables 13 that run inside the longitudinal duct 12.
For example there may be four, six, eight etc. primary electric cables 13.
The primary electric cables 13 may be wrapped in a protective insulating sheath 14 as can be observed in figures 2, 3-5.
The longitudinal ends of the tubular body 11 may be removably coupled to capping elements for example in plastic .
The tubular body 11 is also predisposed for being coupled to other busways directly or indirectly using suitable coupling elements. To be able to couple two busways 10 it is first necessary to remove the capping elements from the ends, make the electrical connections between the primary electric cables 13 leading from the busways 10; the coupling may be slide-in or slot-in but in any case it is necessary to stably fix the two busways with fixing elements such as screws or bolts. The tubular body 11 may have a transverse cross-section of any shape, e.g. substantially quadrangular.
The tubular body 11 is preferably in metallic material, e.g. aluminium.
According to the present invention, the busway 10 also comprises at least one LED strip 15 applied to a wall of the tubular body and connected electrically to the respective primary electric cables 13 of the plurality of primary electric cables 13.
LED strip refers to a printed circuit board on which a plurality of LED diodes are arranged in succession. The LED strips can be powered at very low voltage, which means a voltage of not more than 60V in direct current. In particular, the LED strips can be powered at 12 V or 24 V in direct current by specific power supplies or transformers .
Preferably, each LED strip 15 extends for at least a length section of the tubular body 11 and is connected to the respective primary electric cables 13 at a longitudinal end of the tubular body 11.
Preferably, each LED strip 15 is associated at one end to a first electrical connector 16 that is also applied to the tubular body 11. The first electrical connector 16 is then electrically connected by means of secondary electric cables 17 to the respective primary electric cables 13.
As can be observed in figures 2, 3 and 4, the secondary electric cables 17 pass through the wall of the tubular body 11 at preset openings in the wall, penetrate inside the longitudinal duct and are connected to the primary electric cables 13 by means of second electrical connectors 18. The preset openings may be closed by means of closing elements in drilled plastic. These second electrical connectors 18 are connected on one part to the primary electric cables 13 and on the other to the secondary electric cables 17.
The second electrical connectors 18 may be made in the shape of metal rings as illustrated in detail in figure 5, which are fitted onto the primary electric cables 13 to come into contact with the respective electrical conductors .
The second electrical connectors 18 are illustrated in the figures decoupled from the primary electric cables 13 for greater clarity; however, in the figures arrows are also represented to indicate the coupling when used between the second electrical connectors 18 and the primary electric cables 13.
The secondary electric cables 17 may be connected to the second electrical connectors 18 in any manner, e.g. by means of welding.
Preferably, the connection between the primary electric cables 13 and the secondary electric cables 17 is done on one longitudinal end of the tubular body 11.
Preferably, the busway 10 comprises a plurality of said LED strips 15. The greater the number of LED strips applied to the tubular body 11 of the busway 10 the greater the lighting capacity of the latter.
Preferably, as can be observed in figure 3, each LED strip 15 is covered by an optical diffuser 19 used to see a diffused rather than a punctual light. Furthermore, the optical diffuser 19 provides protection for the printed circuit board of the LED strip 15 against external agents such as water and dust .
Alternatively, as can be observed in figure 4, the LED strips 15 are covered by a single optical diffuser 21. The optical diffusers 19, 21 can be made for example of plastic .
In the presence of a plurality of LED strips 15, then, the selective switching of each one is preferably arranged . In this case, the first electrical connectors 16 of the respective LED strips 15 may have a first terminal, for example negative, connected to the same primary electric cable 13 and a second terminal, for example positive, selectively connected to a primary electric cable 13 addressed to the respective LED strip 15. In particular, the selective connection between the second terminal and the addressed primary electric cable 13 is preferably made by means of a controllable switch.
In this way, depending on the positions of the controllable switch, the LED strips 15 may be switched on or off alternately or at the same time.
Alternatively, the terminals of all the first electrical connectors 16 of the LED strips 15 of a busway 10 may be connected to the same primary electric cables 13. In this way the LED strips 15 are switched on or off at the same time.
In a preferred embodiment of the present invention, like the one illustrated in figures 2, 3 and 4, the busway 10 further comprises one or more electrical sockets 20 pre-connected to the primary electric cables 13 not connected to the LED strips 15.
From the above description the features of the busway according to the present invention, as well as the advantages thereof, are evident.
In fact, according to the present invention, the busway being provided with pre-wired LED strips is already predisposed for lighting the surrounding area. The busway according to the present invention therefore has a dual function as a lighting body and a guide and supporting body for the electrical distribution cables. It is therefore not necessary to connect lamps to the busways given that the lighting is assured by the LED strips; this implies that, compared to known busways, it is no longer necessary to purchase lamps and perform wiring operations in order to equip these lamps with plugs complying with proprietary standards. Finally, the busway does not necessarily have to be equipped with electrical sockets.
The present invention therefore allows a reduction in the times and costs for implementation of a lighting system for areas not reached by the buried electrical distribution system.
The heat developed by the LED strips is then effectively dissipated by the metallic tubular body of the busway they are applied to.
Finally, it is clear that the busway as conceived herein is susceptible to many modifications and variations, all falling within the invention; furthermore, all the details are replaceable by technically equivalent elements. In practice, the materials used, as well as the dimensions thereof, can be of any type according to the technical requirements.

Claims

1) Busway (10) comprising:
- a tubular body (11) having a longitudinal development defining a longitudinal through duct (12);
- a plurality of primary electric cables (13) passing within said longitudinal duct (12);
- a plurality of LED strips (15) stably applied to a wall of said tubular body (11) and electrically connected with respective primary electric cables (13) of said plurality of primary electric cables (13), each one of said LED strips (15) being associated at one end to a first electrical connector (16) applied to said tubular body (11), said first electrical connector (16) being electrically connected by means of secondary electric cables (17) to the respective primary electric cables (13), said first electrical connectors (16) of said LED strips (15) having a first terminal electrically connected to the same primary electric cable (13) and a second terminal selectively connected to a primary electric cable (13) addressed to the respective LED strip (15) .
2) Busway according to claim 1, wherein each one of said LED strips (15) extends for at least a length section of said tubular body (11), each one of said LED strips being connected to the respective primary electric cables (13) at one end of said tubular body (11) ·
3) Busway according to claim 1 or 2, wherein said secondary electric cables (17) pass through the wall of said tubular body (11) at preset openings, penetrate inside said longitudinal duct (12) and are connected to the respective primary electric cables (13) by means of second electrical connectors (18) .
4) Busway according to one of the preceding claims, wherein each one of said LED strips (15) is covered by an optical diffuser (19) .
5) Busway according to one of claims from 1 to 3, wherein said LED strips (15) are covered by a single optical diffuser (21) .
EP19829312.8A 2018-12-12 2019-12-09 Busway Withdrawn EP3894739A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102018000011028A IT201800011028A1 (en) 2018-12-12 2018-12-12 BLINDOSBARRA.
PCT/IB2019/060552 WO2020121152A1 (en) 2018-12-12 2019-12-09 Busway

Publications (1)

Publication Number Publication Date
EP3894739A1 true EP3894739A1 (en) 2021-10-20

Family

ID=65861589

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19829312.8A Withdrawn EP3894739A1 (en) 2018-12-12 2019-12-09 Busway

Country Status (3)

Country Link
EP (1) EP3894739A1 (en)
IT (1) IT201800011028A1 (en)
WO (1) WO2020121152A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB961933A (en) * 1959-10-26 1964-06-24 Granada Group Ltd Improvements in or relating to electrical wiring installations
DE20315969U1 (en) * 2003-10-16 2003-12-18 Unger Patent- und Lizenzgesellschaft mbH Lighting arrangement especially for hospital beds, has a light head movable along a carrier and a cable opening which is covered for all positions of the head
DE202008005540U1 (en) * 2008-04-21 2008-07-17 Hedrich, Jürgen Cable duct with cover element
US9097411B2 (en) * 2012-01-17 2015-08-04 Joseph Guilmette Multiple-mode integrated track fixture for high efficiency tubular lamps
US9841179B2 (en) * 2014-03-13 2017-12-12 Telect, Inc. Overhead cable management system with integrated lighting

Also Published As

Publication number Publication date
IT201800011028A1 (en) 2020-06-12
WO2020121152A1 (en) 2020-06-18

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