WO2007104904A1 - Installation d'eclairage exterieur - Google Patents

Installation d'eclairage exterieur Download PDF

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Publication number
WO2007104904A1
WO2007104904A1 PCT/GB2006/000944 GB2006000944W WO2007104904A1 WO 2007104904 A1 WO2007104904 A1 WO 2007104904A1 GB 2006000944 W GB2006000944 W GB 2006000944W WO 2007104904 A1 WO2007104904 A1 WO 2007104904A1
Authority
WO
WIPO (PCT)
Prior art keywords
lighting installation
installation according
control means
support means
base
Prior art date
Application number
PCT/GB2006/000944
Other languages
English (en)
Inventor
Stephen Balmer
Original Assignee
Balmer Lindley Holdings Limited
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 Balmer Lindley Holdings Limited filed Critical Balmer Lindley Holdings Limited
Priority to PCT/GB2006/000944 priority Critical patent/WO2007104904A1/fr
Priority to EP06710106A priority patent/EP2004935A1/fr
Publication of WO2007104904A1 publication Critical patent/WO2007104904A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • F21S8/086—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/36—Hoisting or lowering devices, e.g. for maintenance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads

Definitions

  • the present invention relates to external lighting installations, and particularly, although not exclusively, to external lighting installations of the type comprising a lighting unit supported by a generally vertical column.
  • a common form of lighting system includes a generally vertical column, which supports a lighting unit contained within a housing or fixture.
  • the lighting unit can be a bulb, LED or the like, which is able to produce sufficient light on the area below it.
  • Such lighting units are referred to in the art as a "luminaire".
  • a luminaire also includes some means for directing and/or distributing the light produced by the lighting unit, for example, a reflector.
  • the vertical column supporting the luminaire can be substantially tall, for example, 15m.
  • the lighting unit at the top of the column which requires regular maintenance, will be at least 15m above ground level.
  • the electrical control equipment for controlling the luminaire includes an electrical cut-out fuse, an ignitor, a condenser, capacitors, and ballast.
  • the cut-out fuse may be contained inside an especially formed chamber positioned inside the body of the column, about Im above ground level.
  • an access door or hatch is required in the side of the column to provide access to the fuse.
  • Cutting out space for such an access hatch substantially weakens the whole structure and integrity of the column, and this forms a bending moment along an axis formed by the position of the hatch. Rust and corrosion can develop along this bending axis. Furthermore, having to provide such an access door increases the overall manufacture costs for the column.
  • the rest of the electrical control equipment for the luminaire i.e. the ignitor, condenser, capacitor, and ballast is all provided at the top of the column, normally within the luminaire housing itself.
  • a problem with this is that a large proportion of space inside the luminaire housing is taken up by this electrical control equipment, leaving less room for the bulbs etc. Hence, the luminaire is unnecessarily large.
  • the electrical control equipment has a tendency to generate substantial amounts of heat, and therefore has a tendency to fail, and will therefore require regular maintenance.
  • the heat generated can often cause these lighting components to also overheat and become faulty. Therefore, these will also require constant maintenance, and frequent replacement.
  • an external lighting installation comprising illumination means supported by support means, the support means being connected to a base, and control means for controlling the illumination means, which control means is enclosed within a housing disposed outside the support means, and positioned less than 2m above the base.
  • the lighting installation according to the first aspect of the invention differs from known lighting systems in which the controls are provided within the support means and/or illumination means, and which are inherently problematic.
  • the applicant has recognised that by positioning the control means so that it is in a separate housing disposed less than 2m above the base, i.e. at ground level, that this provides more convenient access during installation, inspection and/or maintenance of the illumination means.
  • the housing enclosing the control means is located at, or substantially adjacent, the base.
  • an advantage of the lighting installation according to the first aspect is that the requirement for working at an elevated height is obviated.
  • the support means may raise the illumination means (and hence, associated control means) a significant height above ground level.
  • a typical motorway lighting column may be approximately 15m tall. Therefore, by positioning the control means at or adjacent the base, it is easily accessible at a convenient working height, for example, at or adjacent ground level, thereby removing the need for the operator to either climb up to the control means at the top of the support means, or to be raised up to the control means by lifting equipment, such as a cherry-picker, or the like.
  • the lighting installation according to the first aspect significantly minimises risks to the health and safety of maintenance operators.
  • elimination of the need to work at height, during installation, inspection and maintenance helps to minimise the number of operators that would be otherwise required to perform these operations. Accordingly, maintenance of the illumination means is much safer, and does not require closing of public highways.
  • control means by enclosing the control means in a separate housing that is outside the support means, there is no need to provide an access door or hatch in the side of the support means to provide access to the control means as in known systems. Accordingly, there is no need to cut out space for any such access hatch, and advantageously, the structure and integrity of the support means according to the invention is not compromised.
  • the support means is less likely to bend or sway, and is more resistant to the development of corrosion.
  • manufacture and associated cost for the support means is much lower as there is no need to cut out an access hatch.
  • the control means may be secured to a lower portion of the support means, at a position, which is accessible to an operator without the aid of any lifting equipment.
  • the control means in its housing may be attached to one side of the support means, preferably no greater than 2m above ground level.
  • the control means is attached to the base, or may be integral therewith, preferably at ground level.
  • Figures 1 and 2 illustrate the preferred position of the control means.
  • the support means preferably comprises a substantially elongate column, which may be tubular.
  • the column may comprise substantially parallel walls, or walls, which taper inwardly, wherein the diameter of the support means distal from the base is less than proximal to the base.
  • the support means may be cone shaped.
  • the support means may be polygon shaped, such as hexagon or octagon, which provides additional rigidity to thereto.
  • the support means comprises a metal column, which may comprise sheet or pressed metal. The inventor has recognised that a pressed support means advantageously reduces its weight without compromising its strength.
  • the support means may comprise carbon steel, stainless steel or aluminium.
  • the support means is provided with a protective coating on at least its exterior surfaces. It will be appreciated that the coating may comprise a weather resistant paint.
  • the support means may comprise a galvanised finish. In other embodiments, the support means may comprise a thermoplastic coating applied to its outer surfaces.
  • the base is preferably secured to the ground.
  • the base comprises a base plate, which extends substantially parallel with an upper surface of the ground, i.e. substantially horizontally.
  • the plate is metallic, for example, cast iron or steel, and is able to support the support means thereon.
  • the base further comprises a root, which extends downwardly into the ground, preferably below the base plate.
  • the root may be formed of the same materials as the support means and/or may comprise reinforced concrete.
  • the base may also be bolted to a hardened surface (for example, concrete or tarmac etc), by drilling in bolt and bolting the base thereto.
  • the illumination means is preferably adapted to provide light to its surrounding area, and preferably, space thereunder.
  • the illumination means is connected to a first end of the support means, i.e. an upper end.
  • the illumination means comprises a bulb, and preferably a reflector, which may be enclosed within a casing.
  • the illumination means may comprise at least one luminaire, and preferably, a pair of luminaires, that are supported by the support means. It is the illumination means, which requires regular maintenance, for example, replacing the bulbs, or cleaning the reflector etc, and hence, the reason why easy access to its control means is so important.
  • control means is adapted to control when the illumination means is switched on or off, which are preferably electrical components therefor.
  • the control means comprises all of the electrical control circuitry for the illumination means.
  • the control means may comprise any of the following components independently selected from a groups consisting of:- an igniter; and/or ballast; and/or a capacitor; and/or a resistor; and/or a remote sensor or controller.
  • the ignitor is provided to start fluorescent and discharge lamps
  • ballast is an electrical device for regulating fluorescent and discharge lamps.
  • the housing enclosing the control means is preferably water resistant.
  • the housing may comprise an IP68 rated control box.
  • the control means may be slotted into the housing in a replaceable cartridge arrangement, which allows quick removal and replacement. It is preferred that each component of the control means for each illumination means, and preferably, each luminaire, is individually cartridge mountable.
  • the housing may comprise a lid, which lid may be lockable to prevent unauthorised access to the control means.
  • the control means also preferably comprises automatic shut-off means, which is arranged to electrically isolate the control means when the lid is open. It will be appreciated that such an arrangement provides improved safety.
  • the control circuitry has a tendency to overheat and fail.
  • the ballast runs at core temperatures of about 17O 0 C.
  • the lighting installation according to the invention comprises temperature regulation means adapted to regulate the temperature of the control means, when in use.
  • the temperature regulation means comprises cooling means adapted in use to cool the control means.
  • a cooling means is particularly beneficial in combination with the control means at or adjacent the base as it helps to overcome any overheating effect that may be caused due to being in a location lacking ambient cooling due to a generally enclosed and insulated location.
  • the temperature regulation means may be a passive system.
  • the housing may comprise heat dissipation means adapted to dissipate heat generated by the control means, preferably away from the housing. It will be appreciated that the dissipation means may provide an increased surface area and, therefore, provide improved heat exchange between the control means and its surroundings.
  • the heat dissipation means may comprise a heat sink, which may be disposed in or adjacent the control means, or on the housing. Additionally or alternatively, the heat dissipation means may comprise at least one and preferably, a plurality of fins, attached to the housing, and preferably, the lid thereof.
  • the temperature regulation means is an active system, and preferably an active cooling means.
  • an active system controls the temperature of the control means by maintaining it an optimised level regardless of external factors, such as environmental conditions.
  • the temperature regulation means is thermostatically controlled. It will be appreciated that in some embodiments, the temperature regulation means may comprise both an active and a passive system.
  • the active temperature regulation means may comprise a refrigeration circuit (as used, for example, in air conditioning systems), electro-thermal devices (for example, Peltier-effect devices), and air circulation devices.
  • the temperature regulation means comprises air cooling means. The inventor has recognised that an air cooling means for cooling the control means is advantageous in providing a robust and reliable cooling system without providing undue additional complexity or costs to the lighting installation.
  • the air cooling means is arranged to feed air at a first temperature to the control means, and take air at a second higher temperature away from the control means.
  • the first temperature may be ambient temperature, and that the higher temperature will be higher than ambient temperature, due to the heating effect of the control means when in use.
  • the air leaving the control means is fed to the support means.
  • the air cooling means is arranged to move air between the control means and the support means. More preferably, the air cooling means is adapted to move air between the housing and an inner cavity of the support means. It is preferred that the air cooling means comprises at least one conduit, which extends between the control means and the support means, and which conduit is arranged to enable air flow therealong.
  • the air cooling means comprises means for creating an air flow along the conduit, for example, a fan, which maybe disposed inside the housing.
  • the air cooling means comprises first and second conduits, wherein the first conduit is adapted to feed air at a first temperature to the control means, and the second conduit is adapted to take air at a second higher temperature away from the control means, and preferably to the support means.
  • the first conduit is an inlet and the second conduit is an outlet in relation to the control means.
  • the fan ensures that cool air flows along the inlet to the control means, and that warmed air flows along the outlet away from the control means.
  • an end of the first conduit (i.e. the inlet) distal from the control means is disposed within the support means, and preferably substantially above ground level. This prevents blockage of, and water ingress to the conduit, for example, in the event of a flood.
  • the end of the first conduit points generally towards the base (i.e. downwardly), as shown in Figure 5. As cool air has a tendency to sink, by pointing the distal end of the first conduit downwardly, generally cooler air will be sucked in to the conduit by the fan.
  • an end of the second conduit (i.e. the outlet) distal from the control means is disposed within the support means, and preferably, substantially above ground level.
  • the end of the second conduit points generally away from the base (i.e. upwardly), as shown in Figure 5.
  • the warmer air will be forced up the support means by the fan so that it does not mix with the cooler air being sucked into the first conduit.
  • the inventor has recognised that circulating air between the control means and the support means provides a number of advantages to its cooling.
  • This arrangement utilises the relatively large surface area of the support means, which is able to act as a heat exchanger between the heated air expelled from the control means and ambient surroundings.
  • the air circulation provides a drying effect upon the air within the cavity of the support means. This effect is advantageous in reducing the accumulation of moisture within the support means, which may otherwise cause corrosion to components inside the support means or the support means itself.
  • the air cooling means provides an efficient way for regulating the temperature of the control unit.
  • a method of regulating the temperature of a control means of an external lighting installation comprising:-
  • the method comprises feeding the air leaving the control means to the support means.
  • the method comprises feeding the air along a conduit, which extends between the control means, preferably, the housing thereof, and the support means, preferably, an internal region thereof.
  • the method comprises feeding the air along first and second conduits, wherein the first conduit is adapted to feed air at a first temperature to the control means, and the second conduit is adapted to take air at a second higher temperature away from the control means, and preferably towards the support means.
  • the first conduit is an inlet and the second conduit is an outlet in relation to the control means.
  • the support means of the installation according to the first aspect of the invention is preferably pre-wired for providing an electrical connection between the illumination means and the control means.
  • This arrangement is advantageous in greatly simplifying installation of the lighting installation by minimising the requirement for on-site electrical work.
  • Minimising the wiring to be carried out on site is advantageous in reducing the time for installation and is also beneficial in allowing the wiring to be carried out in factory conditions were it may be also be tested prior to being delivered to the installation site.
  • the lighting installation may be further simplified by electrically and structurally connecting the illumination means to the support means prior to being delivered to the installation site.
  • the lighting installation may comprise an integral illumination means and support means arrangement, which are preferably pre-wired for electrical connection to the base and control means.
  • the illumination means may be releasably electrically connected to the support means, wherein both components are automatically electrically self-disconnecting upon release of the illumination means from the support means.
  • automated electrically self-disconnecting we mean that the electrical circuit, and power therein, is broken between each component solely upon relative movement thereof apart. This provides not only a quick and easy electrical connection/disconnection system between the components, without the need for a qualified electrician, but also provides a useful safety mechanism for the operator. It will be appreciated that the components may be easily automatically electrically reconnected upon bringing the two components together, again without the need for an electrician, i.e. merely reconnecting the two components forms the complete electrical circuit.
  • the lighting installation according to the invention comprises a releasable electrical connector between the support means and the illumination means, wherein both components are automatically electrically self- disconnecting upon release of the illumination means from the support means.
  • the lighting installation may also comprise a releasable electrical connector between the support means and the base, wherein both components are automatically electrically self-disconnecting upon release of the support means from the base.
  • an external lighting installation comprising illumination means supported by support means, the support means being connected to a base, and control means for controlling the illumination means, characterised in that the support means and the base are releasably electrically connected to each other by a releasable electrical connector, wherein both components are automatically electrically self-disconnecting upon release of the support means from the base.
  • an external lighting installation comprising illumination means supported by support means, the support means being connected to a base, and control means for controlling the illumination means, characterised in that the support means and the illumination means are releasably electrically connected to each other by a releasable electrical connector, wherein both components are automatically electrically self- disconnecting upon release of the support means from the illumination means.
  • both components are automatically self-disconnecting upon release of the illumination means from the support means. This is because the connector is automatically electrically isolated on detachment of the support means from the illumination means.
  • the releasable connector may comprise a plug and socket type arrangement.
  • the connector allows the electrical connection to be repeatedly connected and disconnected.
  • the illumination means, the support means, and the base are individually pre-wired and may, therefore, comprise sealed units. It will be appreciated that a sealed unit would not require any adjustment or maintenance.
  • the lighting installations according to the invention provide a modular system, which removes the need for on-site maintenance. This not only simplifies maintenance and installation but is also be beneficial to for health and safety considerations by minimising required work in an environment such as a highway which may classed as high risk.
  • the releasable electrical connector used in the installation of the third aspect comprises a first connector member attached to the support means, and a complementary second connector member attached to the base.
  • the releasable electrical connector in the installation of the fourth aspect comprises a first connector member attached to the support means, and a complementary second connector member attached to the illumination means.
  • the first connector member comprises either a male or a female connector and the second connector member comprises the other of a male or female connector.
  • the first and second members may form a standard screw-type connection, or a bayonet type connection.
  • the releasable electrical connector is adapted to enable relative rotational movement between the first and second connector members.
  • the inventors has recognised that by providing a releasable connector that allows relative rotational movement between its first and second connector members enables the support means and base, and/or the support means and illumination means to be readily attached to one another in a quick-fit/releasable manner.
  • the releasable connector may be arranged to allow at least partial relative rotation between the first and second connector members without breaking the electrical connection.
  • Such connectors preferably, allow an electrical connection to be made irrespective of the relative angular orientation of the first and second connector members.
  • the first and second connector members may be arranged to self-align with each other.
  • the connector members may be provided with interacting, complimentary, frusto-conical profiles, which self-align with each other.
  • Connectors of the type which allow a degree of relative rotational movement between the first and second connector members without breaking the electrical connection are known in the field of domestic appliances.
  • a "P72 Connector” is manufactured by Strix Limited for use in domestic kettle, and presents a preferred connector according to the invention.
  • such releasable connectors have never been used in external lighting systems between the base, support means and illumination means.
  • Bayonet type connectors may also be used.
  • the connector which is arranged to allow relative rotational movement between the first and second connector members also provides support to the support means, base, and illumination means.
  • the releasable electrical connector comprises connector attachment means adapted to mechanically attach the releasable connector to its associated component, for example, the base, the illumination or the support means.
  • the connector attachment means is arranged in use to space the connector from any surrounding components. Hence, this arrangement advantageously, provides a cavity adjacent to the connector in which' ambient air may help to cool the connector.
  • the attachment means comprises a shroud having a first portion adapted to receive the connector, and a second portion adapted to be connected to a component of the lighting installation, i.e. the base, the support means or the illumination means.
  • the first portion comprises an inner body
  • the second portion comprises an outer body, spaced apart from the inner body, to thereby define an annular cavity therebetween.
  • the inner and outer bodies are concentrically mounted. The inner and outer bodies may be spaced apart by means of radially extending members.
  • the connector attachment means and preferably, the annular cavity thereof, for the releasable connector between the base and support means is in communication with the air cooling means.
  • the connector attachment means is in communication with the air conduit between the support means and the control means.
  • the cavity of the attachment means may be arranged to enable air to be circulated in into and out of the support means.
  • the connector attachment means therefore is adapted to provide an inlet and/or outlet for air flow from the control means to the support means.
  • the air cooling means is arranged to circulate air through the annular cavity of the attachment means to thereby provide a means for circulating air into the interior cavity of the support means.
  • This is advantageous in enabling the support means to be used as a heat dissipation means for heat generated in the connector between the base and support means.
  • the air flow through the annuhis of the attachment means provides a cooling effect upon the connector.
  • the inventors also believe that the lighting installation according to the invention enables an efficient method of installing it at a site.
  • a fifth aspect there is provided a method of installing an external lighting installation according to the first, third or fourth aspect, the method comprising:-
  • the base is pre-wired.
  • the surface may be the ground.
  • the lighting installation comprises control means for controlling the illumination means, the control means being enclosed within a housing disposed outside the support means, and located at or substantially adjacent the base (preferably, not higher than 2m above the base).
  • the method comprises a step of connecting the base to a main power line.
  • step (ii) of the method comprises connecting the support means to the base in a substantially horizontal position.
  • the method preferably further comprises a step of tilting the support means into a substantially vertical position after attachment of the illumination means thereto.
  • Figure 1 is schematic cross-sectional side view of a lighting installation in accordance with an embodiment of the invention
  • Figure 2 is an enlarged cross-sectional side view of a column, base and control assembly of the lighting installation shown in Figure 1;
  • FIG 3 is a schematic plan view of the control assembly shown in Figure 2;
  • Figure 4a is an enlarged perspective view from above of a connector shroud according to an embodiment of the invention.
  • Figure 4b is an enlarged perspective view from below of the connector shroud shown in Figure 4a;
  • Figure 5 is a schematic view of an air cooling system according to an embodiment of the invention.
  • an external lighting installation 1 according to the invention, which may be used in many applications, for example, the illumination of streets, highways, sports facilities, car parks, railways, and the like.
  • the lighting installation 1 has the ability to be lowered and raised about a pivot point to assist the maintenance thereof under the control of a control unit 20.
  • FIG 2 generally show the arrangement of the lighting installation 1 and control unit 20
  • Figure 3 shows the control unit 20 in more detail
  • Figure 4 shows a connector shroud 40, which is used to connect various features of the installation 1
  • Figure 5 shows a cooling system used to cool electrical components of the installation 1.
  • the lighting installation 1 includes an elongate column
  • the column 3 having a hollow, polygonal cross-section, which is formed from a pressed steel construction and has a typical length of about 15 metres.
  • the column 3 is connected to a base 4, which is supported by ground 10.
  • the base 4 includes a root 8, which extends below the ground level 10 to provide a secure foundation for the lighting installation 1, and particularly the column 3 above. For example, for a 15 metre column 3, the root 8 will extend at least 2 metres below the ground level 10.
  • the base 4 is further secured into the ground 10 by a surrounding concrete foundation 9.
  • the column 3 is provided with a tapered profile with a diameter that reduces from its base 4 of the column 3 (i.e. the lower end) to a distal point at the opposite end, i.e. the upper end.
  • the column 3 can taper inwardly at a constant rate along its length, or in some embodiments, it may have a stepped profile.
  • a pair of luminaires 2 each of which consists of a bulb 2a and a reflector
  • the luminaires 2 provide the lighting, and it is these, which require regular maintenance, for example, replacing the bulbs 2a, or cleaning the reflector 2b.
  • the base 4 of the lighting installation 1 includes a primary base plate 6, which is provided directly above the root 8, and is provided to support the column 3 thereabove.
  • the base 4 also includes a secondary base plate 7, which is connected to the lower end of the column 3.
  • the primary and secondary base plates 6,7 are provided with interacting hinge members, which are pivotally connected together by a pin extending therethrough, to thereby form the hinge 5.
  • the base 4 of the lighting installation 1 includes a control unit 20, for controlling the luminaires 2, and the actuator assembly 30.
  • the actuator assembly 30 is shown being connected between the primary and secondary base plates 6,7.
  • the hinge 5 and the actuator assembly 30 are connected to opposite ends of the base plates 6,7.
  • the actuator assembly 30 is disposed in an opposed position with respect to the hinge 5, i.e. it is positioned on a circumferentially opposite side of the column 3 with respect to the hinge 5.
  • the column 3 is disposed adjacent to the hinge 5 and the actuator assembly 30 is spaced apart from the column 3.
  • FIG. 3 shows the luminaire control unit 20 in further detail.
  • the control unit 20 consists of two twin circuits 20a contained within an enclosure box 21, which is formed integrally with the base 4.
  • the enclosure box 21 is an IP68 rated control box.
  • Each of the two circuits 20a controls one of the two luminaires 2. It will be appreciated that the number of luminaires 2 may vary depending on the particular use, and so would the number of control circuits 20a.
  • Each circuit 20a consists of a capacitor 31, an ignitor 32, a ballast 34, and a remote 33.
  • the control unit 20 also includes a automatic cut-out lock 35, which may be positioned in between the two twin circuits 20a, which is provided to isolate the electrical control circuitry upon opening of the enclosure box 21.
  • the control circuits 20a, and associated electrical components 31,32,33,35 are conveniently mounted in a cartridge which slots into the enclosure box 21. This allows circuits 20a to be easily removed and replaced in the event of failure without any need for an operator to climb the column 3, or require lifting equipment up to the luminaire 2.
  • the enclosure box 21 also includes a die-cast aluminium lid 21a, the upper surface of which is provided with a series of fins 21b, which facilitates passive cooling of the box 21, and prevents overheating thereof.
  • the control unit 20 includes an advanced cooling system, which is shown in detail in Figure 5.
  • the cooling system consists of two conduits 25,26, which are arranged to provide air communication between the interior of the enclosure box 21 of the control unit 20 and the interior of the column 3.
  • the box 20 contains a fan 60, which sucks in cold air along conduit 26, which extends from the box 21 to about Im up into the centre of the column 3.
  • the end of the cold air conduit 26 points generally downwardly as cold air has a tendency to sink. Air is sucked in to conduit 26 in a direction as indicated by arrow 'X', which leads into the box 21, and which circulates in and around the various components 31,32,33,35 of the circuits 20a.
  • Conduit 25 is arranged to take circulating air that has been warmed by the components 31,32,33,35 away from the box 21 in a direction as indicated by arrow 'Y'.
  • Conduit 25 extends between the box 21 and the lower region of the column 3 as shown in Figure 5, and extends about Im up into the column 3.
  • the end of the conduit inside the column 3 points generally upwardly as warm air has a tendency to rise upwardly therein.
  • the conduit 25 utilises the column 3 as a radiator using its entire surface area for dissipating heat generated within the control unit 20.
  • the ends of the conduits 25,26 inside the column are at least Im above ground level so that they do not fill with water etc in case of flooding.
  • the control unit 20 is supplied with power via a spur- line 22 taken from a main feed cable 24 by means of a cable connector clamp 23.
  • the main feed cable 24 can be a ring circuit provided for powering a series of lighting installations (not shown).
  • the connector clamp 23 has a two part sealed construction which provides a waterproof connection that can be used with or without the need for any separate resin filling. Furthermore, the connector clamp 23 includes a plurality of needle-like elements, which penetrate the insulation of each individual line of the main feed cable 24, and thereby form a connection without the need for cutting the main feed cable 24.
  • the column 3 is shown attached to the base 4 by the hinge 5 about which the column 3 pivots under the control of the actuator 30. This allows easy access and maintenance of the luminaires 2 at the top of the column 3.
  • a quick-fit electrical connector 27 is provided between the base 4 and lower portion of the column 3 of the installation 1 for connecting wiring 50 for the luminaire 2 from the control unit 20 to the column 3.
  • a similar electrical connector 28 is provided between an upper portion of the column 3, and the two luminaires 2 for connecting the wiring 50 in the column 3 to the luminaires 2.
  • Each connector 27,28 includes two mutually connecting members, which include complimentary male and female connectors 27a,27b (or 28a,28b), which engage each other.
  • the leading edge of each half 27a,27b (male or female) of each connector 27,28 is conical in shape to allow each half to align with each other when brought into contact as shown in Figure 5.
  • Such connectors 27,28 are commonplace in household appliances, but have never been used in external lighting installations 1.
  • the male and female members 27a,27b of the connector 27 between the base 4 and the column 3 allows very quick and easy connection/disconnection of the electrical circuit formed by wiring 50 between the base 4 and column 3.
  • the connecter 28 between the column 3 and the two luminaires 2 allows the luminaires 2 to be electrically connected/disconnected from the wiring 50 in the column 3.
  • the luminaires 2 are attached to the column 3 by means of a twist lock or bayonet type bracket (not shown).
  • FIGS. 4a and 4b there is shown views from above and below of a shroud 40 for enclosing male and female members 27a,27b of the connector 27 between the column 3 and the base 4, and also for enclosing male and female members of the connector 28 between the column 3 and the luminaires 2.
  • the shroud 40 consists of a tubular inner body section 41 defining a central channel 42 therein, in which the connector 27,28 is received. As shown in Figure 4b, an aperture 48 is provided at the base of the central channel 42 through which wiring 50 attached to the male/female members 27a,27b of the connector 27,28 extends.
  • the shroud 40 includes a tubular outer body 43, which extends around, but is annularly spaced apart from, the inner body 41, to thereby define an annular space 44 therebetween.
  • the inner and outer bodies 41, 43 are concentric with each other.
  • the outer body 43 is provided with four attachment lugs 45 which are spaced apart at equidistant positions around the circumference of the body 43.
  • the lugs 45 are provided with a central aperture 46 through which a screw or pin or the like can be passed for attaching the shroud 40, and hence, one member of the connector 27,28 to the relevant part of the lighting system 1.
  • the annular space 44 is divided into four space sections 44a-44d by arms 52 which extend radially outwardly from the inner body 41, the ends of which provide the lugs 45. As shown in
  • the four space sections 44a-44d are in air-flow communication with the air conduits 25,26 of the air circulation system attached to the enclosure box 21. Hence, cool air flowing along conduit 26 is directed towards and through the sections 44a-
  • the external lighting system 1 reside in the placement of the control unit 20 not at the top of the column 3 adjacent the luminaires 2, but down in the base of the installation 1 where it is far more accessible to operators. Furthermore, the advanced cooling system consisting of the cool and warm air conduits 25,26 ensure the electrical components 31,32,33, 34,35 in the box 21 do not overheat, hi addition, the conduits 25, 26 extend to the connector shroud 40 joining the base 4 and the column 3 preventing the connector 27 from overheating.
  • control unit 20 located externally to the column 3 or luminaire 2 is advantageous in allowing the column 3 or luminaire 2 to be designed without the need to provide any accommodation for the control unit 20. Accordingly, it is possible to design a lighter and more compact luminaire 2. It will be appreciated this is also beneficial in reducing the load for which the support means must be designed to support. Furthermore, a luminaire 2 for use with the present invention, comprising less components, provides a designer with a greater degree of design freedom. This is beneficial both in technical aspects, such as the placement of a bulb 2a and the placement and shape of a reflector 2b within the luminaire 2, so as to provide greater photometric performance, and aesthetically.
  • the design of the column 3 and/or the luminaire 2 need not be compromised to allow access to the control unit 20.
  • the support means typically comprises an access door for maintenance and inspection.
  • the installation 1 comprises an uninterrupted column 3 as shown in the Figures.
  • An uninterrupted column 3, having no cut-out for access, is structurally advantageous. It will be appreciated that for any given column 3 design without a cut-out will be structurally stronger than the equivalent column with a cut-out. Accordingly, the present invention enables a lighter column 3 to be used as it does not require any reinforcement to overcome the effects of a cut-out.
  • an uninterrupted column 3, having no access door is substantially vandal-proof.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

L'invention concerne une installation d'éclairage extérieur comportant un moyen d'éclairage supporté par un moyen de support, le moyen de support étant connecté sur un socle, et un moyen de commande pour commander le moyen d'éclairage, moyen de commande qui est enfermé dans un boîtier disposé à l'extérieur du moyen de support, et positionné à moins de 2 m au-dessus du socle.
PCT/GB2006/000944 2006-03-15 2006-03-15 Installation d'eclairage exterieur WO2007104904A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/GB2006/000944 WO2007104904A1 (fr) 2006-03-15 2006-03-15 Installation d'eclairage exterieur
EP06710106A EP2004935A1 (fr) 2006-03-15 2006-03-15 Installation d'eclairage exterieur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/GB2006/000944 WO2007104904A1 (fr) 2006-03-15 2006-03-15 Installation d'eclairage exterieur

Publications (1)

Publication Number Publication Date
WO2007104904A1 true WO2007104904A1 (fr) 2007-09-20

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PCT/GB2006/000944 WO2007104904A1 (fr) 2006-03-15 2006-03-15 Installation d'eclairage exterieur

Country Status (2)

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EP (1) EP2004935A1 (fr)
WO (1) WO2007104904A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2213933A1 (fr) * 2009-01-30 2010-08-04 Energias Renovables del Principado, S.A. Poteaux d'éclairage à énergie solaire photovoltaic avec connexion au réseau
CN106760076A (zh) * 2016-12-15 2017-05-31 广州江河幕墙系统工程有限公司 建筑灯光照明室外检修维护结构及其安装方法
CN110011251A (zh) * 2019-03-04 2019-07-12 江苏利宏原电力科技有限公司 一种闸刀式架线街码
US11209120B1 (en) * 2018-05-16 2021-12-28 Glenn Joseph Bronson Camera mount plate and module access slide for poles used for roadside electronic systems

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4878160A (en) * 1988-03-11 1989-10-31 Reneau George W Outdoor lightpole
FR2687024A1 (fr) * 1992-01-31 1993-08-06 Danis Nathalie Dispositif destine a apporter ameliorations et securite dans la pose, la fixation et le raccordement de supports devant recevoir une ou plusieurs alimentations electriques.
US6513342B1 (en) * 2001-07-18 2003-02-04 Thomas Flynn Water tight air vent for telecommunications micro-cell vault
US20040037084A1 (en) * 1998-10-19 2004-02-26 Ginsburg Thomas A. Mast lighting system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4878160A (en) * 1988-03-11 1989-10-31 Reneau George W Outdoor lightpole
FR2687024A1 (fr) * 1992-01-31 1993-08-06 Danis Nathalie Dispositif destine a apporter ameliorations et securite dans la pose, la fixation et le raccordement de supports devant recevoir une ou plusieurs alimentations electriques.
US20040037084A1 (en) * 1998-10-19 2004-02-26 Ginsburg Thomas A. Mast lighting system
US6513342B1 (en) * 2001-07-18 2003-02-04 Thomas Flynn Water tight air vent for telecommunications micro-cell vault

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2213933A1 (fr) * 2009-01-30 2010-08-04 Energias Renovables del Principado, S.A. Poteaux d'éclairage à énergie solaire photovoltaic avec connexion au réseau
CN106760076A (zh) * 2016-12-15 2017-05-31 广州江河幕墙系统工程有限公司 建筑灯光照明室外检修维护结构及其安装方法
US11209120B1 (en) * 2018-05-16 2021-12-28 Glenn Joseph Bronson Camera mount plate and module access slide for poles used for roadside electronic systems
CN110011251A (zh) * 2019-03-04 2019-07-12 江苏利宏原电力科技有限公司 一种闸刀式架线街码

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