WO2010071681A1 - Internal bus bar and an electrical interconnection means therefor - Google Patents

Internal bus bar and an electrical interconnection means therefor Download PDF

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Publication number
WO2010071681A1
WO2010071681A1 PCT/US2009/006663 US2009006663W WO2010071681A1 WO 2010071681 A1 WO2010071681 A1 WO 2010071681A1 US 2009006663 W US2009006663 W US 2009006663W WO 2010071681 A1 WO2010071681 A1 WO 2010071681A1
Authority
WO
WIPO (PCT)
Prior art keywords
bus bar
conductors
electrical interconnection
interconnection means
flex circuitry
Prior art date
Application number
PCT/US2009/006663
Other languages
French (fr)
Original Assignee
Wave
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 Wave filed Critical Wave
Priority to AU2009327544A priority Critical patent/AU2009327544B2/en
Priority to EP09833774.4A priority patent/EP2380247A4/en
Priority to CN200980156671.4A priority patent/CN102318149B/en
Priority to RU2011129754/07A priority patent/RU2542714C2/en
Publication of WO2010071681A1 publication Critical patent/WO2010071681A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/006—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation with means for hanging lighting fixtures or other appliances to the framework of the ceiling
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
    • E04B9/065—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising supporting beams having a folded cross-section
    • E04B9/067—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising supporting beams having a folded cross-section with inverted T-shaped cross-section
    • E04B9/068—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising supporting beams having a folded cross-section with inverted T-shaped cross-section with double web
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
    • E04B9/10—Connections between parallel members of the supporting construction
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/56—Insulating bodies
    • H01B17/58—Tubes, sleeves, beads, or bobbins through which the conductor passes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/06—Single tubes
    • 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
    • H01R25/14—Rails or bus-bars constructed so that the counterparts can be connected thereto at any point along their length
    • 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

Definitions

  • a keep out zone is a term used herein to define any point along the continuous conductive path that is unavailable for electrical connection due to interference or other obstruction of the mating surface of the conductors. How to bring power and/or signal to an internal bus bar without creating a keep-out zone has heretofore been unknown.
  • An electrified framework system for bringing power and/or signal to electrically powered devices includes at least one longitudinally extending electrified bus bar.
  • the bus bar has a housing which includes a pair of conductors positioned therein. Each conductor has a mating surface which provides a continuous conductive path for attachment of devices.
  • the system also includes a means to bring electricity to the conductors without interfering with the mating surface of the conductors and thereby creating an unavailable point for electrical connection BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 3 shows a perspective view of the support member of FIG. 2 having an electrical interconnection means attached thereto.
  • FIG. 5 shows FIGS. 3 in partial cross-section.
  • FIG. 1 shows a portion of an interior room space 101 having a ceiling system comprising a plurality of support grid members 104 forming a grid framework 105.
  • the grid framework 105 is shown as part of a ceiling system, any system utilizing a grid framework, including floors and walls, can utilize the technology of the invention.
  • These systems 105 typically include components such as decorative tiles, acoustical tiles, insulative tiles, lights, heating ventilation and air conditioning (HVAC) vents, which are positioned in the grid openings defined by the support grid members 104.
  • An electrical bus way can be provided by interfacing a low-voltage power and/or signal source (not shown) with a pair of conductors 106 and 106' (FIG. 2) positioned internally in one or more support members 104 of the grid framework 105.
  • interconnection access slots 140 may be difficult to access. Thus, direct attachment of the power and/or signal source via these slots 140 may not be practical.
  • an electrical interconnection means 150 can be used to bring electricity to the backside of the conductors 134, 134'.
  • the flex circuitry extends down opposing sides of the vertical web portion such that a portion of the conductive material is at least partially exposed in order to make an electrical connection with a power and/or signal source.
  • a preferred area for such power and/or signal source contact area 156 is in alignment with the top portion of the support member. Aligning the contact area with the top portion of a grid support member enables multiplexing of the power-in connector shown and described in U.S. Patent Application Publication No. 2008/0087464.
  • the power-in connector attaches to the top portion, e.g. bulb of a support member, and, can be used to mate the power and/or signal source with the exposed conductive material of the flex circuitry aligned with the top portion of the support member.
  • the flex circuitry can be folded over or snapped onto the top of the flex circuitry and grid assembly.
  • the retainer is preferably made of non-conductive material such as molded plastic.
  • the retainer may include a tab 160 which can act as a protective covering for the electrical connection between the flex circuit and the back side of the conductor. It should be noted that the retainer eliminates the need for using an adhesive to attach the flex circuitry to the grid member. It should also be noted that the retainer also provides a cavity 162 (FIG. 6) for ease in field placement and proper positioning of a power-in connector, such as those described in U.S. Patent Application Publication No. 2008/0087464. This retainer cavity properly positions the power-in connector, in relation to the flexible circuitry which would otherwise be a blind mate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Multi-Conductor Connections (AREA)

Abstract

An electrified framework system for bringing power and/or signal to electrically powered devices is provided. The system includes at least one longitudinally extending electrified bus bar. The bus bar has a housing which includes a pair of conductors positioned therein. Each conductor has a mating surface which provides a continuous conductive path for attachment of devices. The system also includes a means to bring electricity to the conductors without interfering with the mating surface of the conductors and thereby creating an unavailable point for electrical connection.

Description

INTERNAL BUS BAR AND AN ELECTRICAL INTERCONNECTION MEANS THERFOR
CROSS REFERENCE TO RELATED APPLICATION
[0001] This application claims the benefit under 35 U. S. C. §119(e) of U.S. provisional application Serial No. 61/139,252, filed December 19, 2008, entitled "Electrically Active Grid Framework Accessories".
BACKGROUND OF THE INVENTION
[0002] The present invention is directed to an electrically active framework and, more particularly, to an electrified bus bar and an electrical interconnection means which brings power and/or signal to conductive material housed internally in the bus bar. [0003] Today's interior building environment is dominated by fixed lighting and a wide variety of electrical devices that are typically wired for a building's lifetime rather than occupants' changing needs. Building designers and owners increasingly have been seeking systems to make buildings more adaptable and to integrate infrastructure, equipment and furnishings that can improve a building's energy efficiency. Generally speaking, the increasing use of safe, low- voltage direct-current (DC) power and/or signal in interior control and peripheral devices, such as lighting, is a shift aimed at increasing adaptability and energy efficiency.
[0004] More specifically, U.S. Patent Application Publication Nos. 2006/0272256, 2007/0103824 and 2008/0087464 are examples of recent attempts to provide unprecedented design and space flexibility along with reduced energy usage via an enabling infrastructure which uses and distributes low- voltage DC power and/or signal. In short, these systems change the manner in which low-voltage direct-current (DC) power and/or signal is distributed to interior controls and devices resulting in an increase in flexibility, efficiency and sustainability of the interior building environment. In these systems, low- voltage DC power and/or signal is distributed and accessible via the conductors disposed on the support grid members of a grid framework. A low- voltage power and/or signal source is then attached to the infrastructure, i.e. the support grid members, via one or more connectors, which, in turn, electrifies the conductors and creates an electrified bus bar.
[0005] What is needed is a means to bring electricity to the conductors without creating keep-out zones. A keep out zone is a term used herein to define any point along the continuous conductive path that is unavailable for electrical connection due to interference or other obstruction of the mating surface of the conductors. How to bring power and/or signal to an internal bus bar without creating a keep-out zone has heretofore been unknown.
SUMMARY OF THE INVENTION
[0006] An electrified framework system for bringing power and/or signal to electrically powered devices is provided. The system includes at least one longitudinally extending electrified bus bar. The bus bar has a housing which includes a pair of conductors positioned therein. Each conductor has a mating surface which provides a continuous conductive path for attachment of devices. The system also includes a means to bring electricity to the conductors without interfering with the mating surface of the conductors and thereby creating an unavailable point for electrical connection BRIEF DESCRIPTION OF THE DRAWINGS
[0007] FIG. 1 shows a perspective view of a room space having an electrified ceiling according to an embodiment of the present invention.
[0008] FIG. 2 shows a perspective view of a portion of an example support member of the invention.
[0009] FIG. 3 shows a perspective view of the support member of FIG. 2 having an electrical interconnection means attached thereto.
[0010] FIG. 4 shows an elevated front view of FIG. 3.
[0011] FIG. 5 shows FIGS. 3 in partial cross-section.
[0012] FIG. 6 is an exploded view of FIG. 3.
[0013] FIG. 7 is an elevated front view of FIG. 6.
[0014] The same reference numbers will be used throughout the drawings to refer to the same or like parts.
DETAILED DESCRIPTION OF THE INVENTION
[0015] The present invention is directed to a means to bring electricity to an internal bus bar without creating keep-out zones. For illustrative purposes, FIG. 1 shows a portion of an interior room space 101 having a ceiling system comprising a plurality of support grid members 104 forming a grid framework 105. Though the grid framework 105 is shown as part of a ceiling system, any system utilizing a grid framework, including floors and walls, can utilize the technology of the invention. These systems 105 typically include components such as decorative tiles, acoustical tiles, insulative tiles, lights, heating ventilation and air conditioning (HVAC) vents, which are positioned in the grid openings defined by the support grid members 104. An electrical bus way can be provided by interfacing a low-voltage power and/or signal source (not shown) with a pair of conductors 106 and 106' (FIG. 2) positioned internally in one or more support members 104 of the grid framework 105.
[0016] A well known support grid member 104 is sold by Armstrong World Industries, Inc. under the name SILHOUETTE and is shown in FIG. 2. These SILHOUETTE support grid members 104 are commonly used in suspended ceiling systems utilizing lay- in panels and, particularly, panels having a stepped edge detail. These longitudinally extending support members 104 include an elongated vertical web portion 112 from which a support flange 114 extends. The lower support flange 114 includes opposing: side walls 116; top walls 118; and bottom walls 120 which define a hollow longitudinal passageway 122 as can best be seen in FIG. 4. A longitudinal opening 130 is formed between the bottom walls 120 which makes the hollow longitudinal passageway 122 accessible.
[0017] As further shown in FIG. 2, a pair of longitudinally extending electrifϊable conductors 134, 134' can be positioned inside this lower flange portion 114, which, in turn, forms an internal bus bar. In the example embodiment shown, each conductor 134, 134' is positioned such that each conductor provides an accessible contact surface 135, 135' (see FIG. 4). [0018] As best seen in FIG. 4, each of the opposing sidewalls 116 include an aperture 140 which exposes the backside 145, 145' of the conductive wires 134, 134' which would otherwise be non-accessible. These apertures 140 will also be referred to herein as "electrical interconnection access slots". These electrical interconnection access slots provide a means in which electricity can be brought from a power and/or signal supply to the backside 145, 145' of the conductors 134, 134'; an area which does not interfere with the contact surfaces 135, 135' of the continuous electrified bus way. More specifically, the connection of the power and/or signal source to the conductors 134, 134' does not physically obstruct the contact surfaces 135, 135' of the conductors such that the entire conductive path provided via the hollow longitudinal passageway 122 is preserved for the electrical connectivity of peripheral devices, such as lights, or connectors therefore. As a result of such configuration, peripheral devices and connectors can be attached to the grid support member 104 via channel 130 at any point along the length thereof, i.e. there are no keep-out zones.
[0019] In grid framework systems 105 which contain peripheral devices and panels, the interconnection access slots 140 may be difficult to access. Thus, direct attachment of the power and/or signal source via these slots 140 may not be practical. As shown in FIGS. 3-7, an electrical interconnection means 150 can be used to bring electricity to the backside of the conductors 134, 134'.
[0020] In the example embodiment shown, the electrical interconnection means 150 (FIGS. 6 and 7) includes: planar three-dimensional circuitry 152, such as flex circuitry or an insertion molded circuit; and a flex circuitry retainer 154. For illustrative purposes, flex circuitry is shown in FIGS. 3-6. The flex circuitry includes conductive material, such as copper or aluminum which is substantially embedded in non-conductive material such as plastic. The flex circuitry 152 can be folded over, snapped onto, or otherwise affixed to the top portion of the grid support member shown in FIG. 2. [0021] In one example embodiment, the flex circuitry 152 straddles over top of the support grid member. The flex circuitry extends down opposing sides of the vertical web portion such that a portion of the conductive material is at least partially exposed in order to make an electrical connection with a power and/or signal source. A preferred area for such power and/or signal source contact area 156 is in alignment with the top portion of the support member. Aligning the contact area with the top portion of a grid support member enables multiplexing of the power-in connector shown and described in U.S. Patent Application Publication No. 2008/0087464. As shown in U.S. Patent Application Publication No. 2008/0087464, the power-in connector attaches to the top portion, e.g. bulb of a support member, and, can be used to mate the power and/or signal source with the exposed conductive material of the flex circuitry aligned with the top portion of the support member.
[0022] In the example embodiment illustrated throughout the various views, the conductive material of the flex circuitry extends downwardly from the top portion of the grid member until a second exposed portion is in alignment with access slots 140. The second exposed portion 158 (FIG. 6) can mate via the access slot with the backside of the conductor. Resistance welding is an example of a way to mate these conductive surfaces. [0023] The flex circuitry 152 may be protected and held into position by a retainer 154. As shown, a "U-shaped" retainer 154 straddles over top of the flex circuitry and, in turn, the support grid member. The retainer 154 extends down both sides of the vertical web portion 112. The flex circuitry can be folded over or snapped onto the top of the flex circuitry and grid assembly. The retainer is preferably made of non-conductive material such as molded plastic. The retainer may include a tab 160 which can act as a protective covering for the electrical connection between the flex circuit and the back side of the conductor. It should be noted that the retainer eliminates the need for using an adhesive to attach the flex circuitry to the grid member. It should also be noted that the retainer also provides a cavity 162 (FIG. 6) for ease in field placement and proper positioning of a power-in connector, such as those described in U.S. Patent Application Publication No. 2008/0087464. This retainer cavity properly positions the power-in connector, in relation to the flexible circuitry which would otherwise be a blind mate.
[0024] While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims.
[0025] For example, as shown throughout the drawings, an insulating element 170 may be used to insulate the conductor from the support member. As can best be seen in FIG. 4., the insulating element 170 generally conforms to the shape of the hollow longitudinal passageway 122 and interposes the conductors 134, 134' and a respective side wall 1 16 of the lower flange 114 of the support member. As shown, the insulating element 170 must include a corresponding aperture which is in overlapping relation to access slot 140 so that the backside 145, 145' of the respective conductor is exposed.

Claims

We claim:
1. An electrified framework system for bringing power and/or signal to electrically powered devices, the system comprising: at least one longitudinally extending electrified bus bar, the bus bar having a housing which includes a pair of conductors positioned therein, the conductors each having a mating surface which provides a continuous conductive path for attachment of devices; and a means to bring electricity to the conductors without interfering with the mating surface of the conductors and thereby creating an unavailable point for electrical connection.
2. The system of claim 1 , wherein the bus bar includes a longitudinally extending vertical web portion and a lower flange portion extending from an edge of the vertical web portion.
3. The system of claim 1, comprising an electrical interconnection means which brings electricity to a conductor positioned internally in the bus bar.
4. The system of claim 3, wherein the electrical interconnection means comprises flex circuitry.
5. The system of claim 4, wherein the electrical interconnection means comprises a flex circuitry retainer which holds the flex circuitry in position on the bus bar.
PCT/US2009/006663 2008-12-19 2009-12-21 Internal bus bar and an electrical interconnection means therefor WO2010071681A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU2009327544A AU2009327544B2 (en) 2008-12-19 2009-12-21 Internal bus bar and an electrical interconnection means therefor
EP09833774.4A EP2380247A4 (en) 2008-12-19 2009-12-21 Internal bus bar and an electrical interconnection means therefor
CN200980156671.4A CN102318149B (en) 2008-12-19 2009-12-21 Internal bus bar and electrical interconnection device between them
RU2011129754/07A RU2542714C2 (en) 2008-12-19 2009-12-21 Internal current-conducting bus and electrical reciprocal junction device for it

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13925208P 2008-12-19 2008-12-19
US61/139,252 2008-12-19

Publications (1)

Publication Number Publication Date
WO2010071681A1 true WO2010071681A1 (en) 2010-06-24

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2009/006662 WO2010080137A1 (en) 2008-12-19 2009-12-21 Grid framework accessories
PCT/US2009/006663 WO2010071681A1 (en) 2008-12-19 2009-12-21 Internal bus bar and an electrical interconnection means therefor

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/US2009/006662 WO2010080137A1 (en) 2008-12-19 2009-12-21 Grid framework accessories

Country Status (6)

Country Link
US (3) US8062042B2 (en)
EP (1) EP2380247A4 (en)
CN (1) CN102318149B (en)
AU (1) AU2009327544B2 (en)
RU (1) RU2542714C2 (en)
WO (2) WO2010080137A1 (en)

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EP2380247A1 (en) 2011-10-26
US20150059265A1 (en) 2015-03-05
US8881481B2 (en) 2014-11-11
WO2010080137A1 (en) 2010-07-15
CN102318149B (en) 2014-05-28
CN102318149A (en) 2012-01-11
AU2009327544A1 (en) 2011-08-11
US20100229475A1 (en) 2010-09-16
US20100240234A1 (en) 2010-09-23
US8062042B2 (en) 2011-11-22
US9469988B2 (en) 2016-10-18
RU2542714C2 (en) 2015-02-27
EP2380247A4 (en) 2014-05-07
RU2011129754A (en) 2013-01-27

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