NL2031305B1

NL2031305B1 - Versatile luminaire housing

Info

Publication number: NL2031305B1
Application number: NL2031305A
Authority: NL
Inventors: Lámfalusi Ferenc; Budavári Péter; Görgényi Emese; Janki Zoltán
Original assignee: Schreder Sa
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2023-09-29

Abstract

Luminaire housing comprising: an electrical compartment for housing an electrical component , a 5 lid moveable with respect to the electrical compartment between an open position and a closed position, wherein in the open position the electrical component is exposed to the outside of the luminaire housing and wherein in the closed position the electrical component compartment is closed by the lid, a moving mechanism for moving the electrical component between a ﬁrst position and a second position, wherein the first position is attained when the lid is in an open 10 position for accessing the electrical component and the second position is attained when the lid is in its closed position, and wherein in the second position the electrical component is arranged in contact with the lid . Figure 1 15

Description

VERSATILE LUMINAIRE HOUSING

FIELD OF INVENTION

The present invention relates to luminaire housings for housing an electrical component, in particular to luminaire housings for housing a driver for driving the light source of the luminaire, which are versatile so as to be able to house a wide range of electrical components.

BACKGROUND

When installing electrical components in luminaire housings comprising a compartment with a moveable lid, in particular when installing drivers in laminaire housings comprising a compartment with a moveable lid, an operator is faced with the challenge to manage the differences in terms of dimensions of the electrical components to be installed in the volume of the luminaire housing. In particular, drivers may present a range of dimensions related to a range of lighting applications. Once installed, the electrical components if loosely fixed may suffer from mechanical vibrations.

Additionally, for electrical components generating a significant amount of heat, like for example drivers, care must be taken to establish a thermal contact with part of the housing serving as a heat sink. Both the resilience to vibration and the thermal efficiency may thus be a challenge when installing electrical components having a wide range of dimensions.

SUMMARY

The object of the embodiments of the invention is to provide a versatile luminaire housing, suitable for housing a wide range of electrical components, in particular while ensuring resilience to vibration and optionally thermal efficiency.

According to a first aspect of the invention, there is provided a luminaire housing comprising an electrical compartment for housing an electrical component, a lid moveable with respect to the electrical compartment between an open position and a closed position and a moving mechanism for moving the electrical component between a first position and a second position. In the open position the electrical component is exposed to the outside of the luminaire housing and in the closed position the electrical component compartment is closed by the lid. The first position is attained when the lid is in an open position for accessing the electrical component and the second position is attained when the lid is in its closed position, and in the second position the electrical component is arranged in contact with the lid.

In accordance with said first aspect, by moving the electrical component in contact with the lid, a wide range of electrical components with a wide range of dimensions can be housed in the luminaire housing in a common manner. In this way, the luminaire housing may be rendered versatile for a wide range of applications, for instance lighting applications associated with a wide range of drivers of different dimensions.

Preferred embodiments relate to luminaire heads for outdoor luminaires. By outdoor luminaires, it is meant laminaires which are installed on roads, tunnels, industrial plants, stadiums, airports, harbours, rail stations, campuses, parks, cycle paths, pedestrian paths or in pedestrian zones, for example, and which can be used notably for the lighting of an outdoor area, such as roads and residential areas in the public domain, private parking areas, access roads to private building infrastructures, warehouses, industry halls, etc.

Preferred embodiments relate to luminaire heads housing a driver. Yet, other electrical components may be envisaged as well. By electrical components, it is meant components which are require electrical energy such as sensors (camera, radar, etc), controllers (microprocessors). power supplies (electronic power conversion devices, transformers, etc), power storage elements (capacitors, batteries, etc), data storage devices (memories, etc), communication devices (antennas, telecommunication modules, etc).

According to an exemplary embodiment, the lid is configured to dissipate heat through its external surface and, in the second position, the electrical component is arranged in thermal contact with the lid. In this way, the luminaire housing may be rendered versatile for a wide range of electrical components in need of cooling. By moving the electrical component in contact with the lid dissipating heat, the luminaire housing may be dispensed with expensive thermally conductive layers inside the housing. In this way, a cost effective and thermally efficient housing may be obtained to manage the differences in dimensions and thermal tolerances of a wide range of electrical components.

According to an exemplary embodiment, the moving mechanism is a resilient biasing mechanism for biasing the electrical component towards the lid when in the second position. In this way, the electrical component is biased by design against the lid to resist against potential vibrations for any dimension of said electrical component. Alternatively, the moving mechanism may comprise an actuated mechanism, for instance an electronically actuated mechanism.

According to an exemplary embodiment, the moving mechanism comprises a spring load being compressed when the moving mechanism moves from the first position to the second position. In this way, by default when the lid is closed, the electrical component is forced towards the lid.

According to an exemplary embodiment, the spring load comprises at least a spring portion, preferably two V-shaped spring portions, being compressed towards a support wall of the electrical compartment when the electrical component moves from the first position to the second position.

In this way, the spring load may be configured as a leaf spring mechanism bending when under pressure and returning to its default shape when released.

According to an exemplary embodiment, the spring load is arranged as an integral element further comprising a plate portion for fixing the spring load to the electrical compartment. In this way, the spring load may be arranged against the electrical compartment to press the electrical component towards the lid.

According to an exemplary embodiment, the moving mechanism further comprise one or more bumper elements, arranged between the spring load and a support wall of the electrical compartment to block at least part of the movement of spring load when the electrical component moves from the first position to the second position. In this way, the lid may be softly closed, and oscillations of the moving mechanism may be damped.

According to an exemplary embodiment, the housing further comprises a guiding mechanism for guiding the electrical component during a movement between the first and the second positions.

The guiding mechanism ensures a guided movement of the electrical component. In this way, a safe storage of the electrical component inside the electrical compartment is realized.

According to an exemplary embodiment, the guiding mechanism comprises stationary guiding elements and moveable guiding elements. In this way, the guiding mechanism ensures a guided relative displacement inside the housing.

According to an exemplary embodiment, the stationary guiding elements are configured to extend in a direction perpendicular to an external surface of the lid when said lid is in the closed position.

According to an exemplary embodiment, the moveable guiding elements are configured to move along the stationary guiding elements. In this way, the guiding mechanism ensures a guided translation along a guiding axis perpendicular to the surface of the lid, when closing the lid.

According to an exemplary embodiment, the luminaire housing further comprises an abutting mechanism to stop the moving mechanism from moving beyond the first position when moving trom the second position to the first position, wherein preferably the abutting mechanism comprises the heads of one or more screws. In this way, the range of movement of the moving mechanism is limited to a safe range. In particular the abutting mechanism may avoid when opening the lid that the moving mechanism separates from the luminaire housing.

According to an exemplary embodiment, the luminaire housing further comprises a holding mechanism for holding at least the electrical component, and optionally for holding other electronic components. In this way, an operator may access the electrical component through the holding mechanism.

According to an exemplary embodiment, the moving mechanism is arranged in between the holding mechanism and a support wall of the electrical compartment. In this way, the holding mechanism is caught in between the moving mechanism pushing it away from the support and the lid pushing its towards the support wall, so that the holding mechanism is maintained and protected against vibrations.

According to an exemplary embodiment, the holding mechanism is arranged in mechanical contact with the guiding mechanism such that the holding mechanism moves along a guiding axis of the guiding mechanism. In this way, the movement of the holding mechanism is controlled and guided during maintenance.

According to an exemplary embodiment, the moving mechanism is configured to enter in mechanical contact with the holding mechanism when the electrical component moves from the first to the second position.

According to an exemplary embodiment, the moveable guiding elements are further configured to be mechanically attached to the holding mechanism.

According to an exemplary embodiment, the stationary guiding elements are guiding rods. In this way, a guided translation may be realized. In particular, the stationary guiding elements are the bodies of one or more screws or bolts fixed into a support wall of the electrical component compartment. In this way, a simple mechanical arrangement provides the desired function. It is noted that other alternatives may be envisaged by a skilled person including among others rails instead of rods. More in particular, the moveable guiding elements are ring shaped. In this way, the ring shaped moveable elements may slide along the guiding rods. 5 According to an exemplary embodiment, the moveable guiding elements are magnets configured to magnetically adhere to the holding mechanism. Magnets allow for an easy and toolless installation of the gear tray holding the electrical component inside the electrical compartment. Alternatively, other well known toolless fixation techniques may be envisaged, including among other snap-fit techniques, press-release techniques, etc.

According to an exemplary embodiment, the abutting mechanism comprises the heads of the one or more screws or bolts. In this way, both the abutting function and the guiding function may be integrated into one element, namely the screws or bolts, simplifying the mechanical design for a compact luminaire housing.

According to an exemplary embodiment, the holding mechanism comprises a gear tray. The gear tray may hold the electrical component once attached on said gear tray, when the lid is open and closed and during movements between the first and the second position, such that the electrical component once attached is maintained at all times.

According to an exemplary embodiment, the gear tray comprises holes having a diameter larger than the diameter of the bodies of the one or more screws or bolts such that the gear tray engaged with the one or more ring shaped magnets is moveable with respect to the bodies of the one or more screws or bolts. The magnets may in this way slide around the screws or bolts to allow for a translation of the gear tray along the one or more screws or bolts.

According to an exemplary embodiment, the gear tray comprises holes having a diameter larger than the diameter of the one or more guiding rods such that the gear tray engaged with the one or more magnets is moveable with respect to the one or more guiding rods. In this way an operator may present the gear tray for engaging via the magnets whitout restricting the movement of the magnets along the guiding rods. The gear tray may thus be easily inserted into place by an operator when the lid in open.

According to an exemplary embodiment, the inner diameter of the ring shaped magnets is smaller than the diameter of the heads of the one or more screws or bolts such that the ring shaped magnets abuts on to the heads of the one or more screws or bolts. In this way, a compact and mechanically simple design may be realized.

According to an exemplary embodiment, the lid is made of metal. In this way, thermal conduction can be ensured between the electrical component and the outside of the luminaire housing. By cooling efficiently the electrical component, the lifetime of the electrical component may be extended, reducing thus maintenance costs of the luminaire installation.

According to an exemplary embodiment, in the second position a surface of the electrical component is arranged in thermal contact with an internal surface of the lid. In this way a heatsink at the surface of the electrical component may be connected thermally to the lid and hence to the outside of the luminaire housing for improved cooling performances.

According to an exemplary embodiment, the lid is mounted such that it can go from closed to open position using gravity. In this way, the maintenance operation of an operator may be facilitated,

Alternatively, the lid may be mounted such that it can go from closed to open position against the gravity, for instance sideways or vertically.

According to an exemplary embodiment, the lid is a pivotable lid. Alternatively, the lid may be entirely removeable from the housing and may be fixed by presenting it perpendicularly to the support wall.

According to an exemplary embodiment, further comprising at least one seal member for sealing the electrical compartment when the lid is in its closed position. In this way, the electrical component may be sealed from influences outside of the housing, increasing thus the lifetime of said electrical component.

According to an exemplary embodiment, the electrical component is a driver for driving light sources.

According to an exemplary embodiment, the luminaire housing further comprises one or more light sources connected to the driver.

According to an exemplary embodiment, the luminaire housing further comprises a light compartment for housing one or more light sources.

According to an exemplary embodiment, the luminaire housing further comprises a cable passage between the electrical compartment and the light compartment. In this way, a hermetic connection between the electrical compartment and the light compartment may be realized, protecting the electrical component(s) and the light source(s) from water and/or dirt.

BRIEF DESCRIPTION OF THE FIGURES

These and other aspects of the present invention will now be described in more detail, with reference to the appended drawings showing preferred embodiments of the invention. Like numbers refer to like features throughout the drawings

Figure 1 illustrates an exploded view of an exemplary embodiment of a luminaire housing.

Figure 2 illustrates a perspective view of an exemplary embodiment of a housing when the lid is in an uttermost open position.

Figure 3 illustrates a see-through perspective view of an exemplary embodiment of a housing when the lid is closed

Figure 4 illustrates a see-through side view of an exemplary first embodiment of the luminaire housing of Figure 3.

Figure 5 illustrates a see-through side view of an exemplary first embodiment of the luminaire housing of Figure 2.

Figure 6 illustrates an enlarged see-through perspective view of the exemplary embodiment of

Figure 2.

Figure 7 illustrates a perspective view of an element of Figure 6.

Figure 8 illustrates an enlarged see-through perspective view of a portion of Figure 2.

DESCRIPTION OF THE EMBODIMENTS

Figure 1 illustrates an exploded view of an exemplary embodiment of a housing of a laminaire.

A luminaire housing 100 comprises an electrical compartment 10 for housing an electrical component 1 and a lid 20 moveable with respect to the electrical compartment 10 between an open position and a closed position ta close the electrical compartment 10. The luminaire housing 100 may further comprise a light compartment 15 for housing one or more light sources 2, and optionally an optical module 3 comprising one or more optical elements associated with the one or more light sources. The light compartment 15 may be closed by a transparent cover 27.

The luminaire housing 100 may comprise a housing body 100A comprising lateral side walls 101 and 103, longitudinal side walls 102 and 104, and a support wall 105 forming a back side of the housing body 100A. An additional support wall 106 may be present parallel with the support wall

105 at the back side of the housing body 100A. The housing body 100A may be open on the side opposite the support walls 105, and respectively optionally 106, to receive the lid 20, and respectively the transparent cover 27. The housing body 100A may further comprise an electrical compartment peripheral wall 11 extending away from the support wall 105. The electrical compartment peripheral wall 11 may form with the support wall 105 the electrical compartment 10. The electrical compartment peripheral wall 11 may be formed integral with the housing body 100A. The housing body 100A may further comprise a light compartment peripheral wall 12 extending away from the support wall 106. The light compartment peripheral wall 12 may form with the support wall 106 the light compartment 15. The light compartment peripheral wall 12 may be formed integral with the housing body 100A.

The lid 20 may be configured to dissipate heat through its external surface 21 when in the second position P2 the electrical component 1 is arranged in thermal contact with the lid 20. The lid 20 may comprise fins 23 on its external surface 21. The lid 20 may be a pivotable lid, pivoting around two pivot hinges 22, each located at the proximity of two adjacent corners of the lid 20. Pivot hinges 22 may engage with holes 17 provided on the lateral side walls 101 and 103. The lid 20 may comprise a peripheral inner wall 24 for engaging with the electrical compartment peripheral wall 11. A seal 19 may be disposed in a groove 13 at the free extremity of the peripheral wall 11 of the electrical compartment 10. The peripheral inner wall 24 of the lid 20 may be arranged to insert in the groove 13 to compress the seal 19. In this way, when the lid 20 is closed, the electrical compartment 10 may be sealed from the outside, protecting the electrical component 1 inside it from water and/or dirt. The housing body 100A may be further provided with press-release mechanisms 18 for holding in place the lid 20 when brought into a closed position and releasing the lid 20 when opening said lid 20. Another seal 19 may be disposed in a groove 13 at the free extremity of the light compartment peripheral wall 12 to engage with the cover 27. In this way when the cover 27 is fixed on the light compartment 15, the light compartment 15 may be sealed from the outside, protecting the light sources 2 inside it from water and/or dirt. A cable passage 16 may further be provided between the electrical compartment 10 and the light compartment 15. The cable passage 16 may provide a hermetic connection between the two compartments. The cable passage 16 may house one or more cables connecting the one or more electrical component 1 in the electrical compartment 10 to the one or more light sources 2 in the light compartment 15.

The luminaire housing 100 comprises further a moving mechanism 30 for moving the electrical component 1 between a first position P1 and a second position P2 associated respectively with the open and closed positions of the lid 1. The electrical component 1 may be an electrically powered component which is dissipating heat, for instance a driver for driving a light source of the luminaire. Other examples of electrical components may be, among others, surge protection devices, fuses, capacitors, batteries, microprocessors, sensors, or dedicated power supplies. The moving mechanism 30 may be for example a resilient biasing mechanism for biasing the electrical component | towards the lid 20 when in the second position P2. As illustrated in Figure 1, the moving mechanism 30 may comprise a spring load 31 being compressed when the moving mechanism 30 moves from the first position P1 to the second position P2. The spring load 31 may further comprise two plate spring portions 33, preferably arranged in a V-shape, being compressed towards the support wall 105 when the moving mechanism 30 moves from the first position P1 to the second position P2. The spring load 31 is arranged as an integral element further comprising a plate portion 32 for fixing the spring load 31 to the electrical compartment 10. The moving mechanism 30 further comprise one or more bumper elements 34, arranged between the spring load 31 and the support wall 105 of the electrical compartment 10 to absorb at least part of the movement of spring load 31 when the moving mechanism 30 moves from the first position P1 to the second position P2. Holes 35 and screws or bolts 36 may be further provided to fix the spring load 31 to the wall 105. Fixing poles 110 may be provided on the inner side of the wall 105 to receive the screws or bolts 36.

The luminaire housing 100 may further comprise a guiding mechanism 40 for guiding the electrical component 1 during a movement between the first position P1 and the second position P2. The guiding mechanism 40 may comprise stationary guiding elements 41 and moveable guiding elements 42. The stationary guiding elements 41 may each be configured to extend in a direction perpendicular to the external surface 21 of the lid 20 when said lid 20 is in the closed position. By reference to housing body 100A, the stationary guiding elements 41 may be configured to extend parallel to an axis A perpendicular to support wall 105. This axis may be further referred to as the guiding axis. The moveable guiding elements 42 may be configured to slide along the stationary guiding elements 41. The stationary guiding elements 41 may be fixed to the support wall 105.

Fixing poles 120 may be provided on the inner side of the wall 105 to receive the stationary guiding elements 41.

The luminaire housing 100 may further comprise a holding mechanism 50 for holding at least the electrical component 1, and optionally for holding other electronic components. Screws 53 may be provided to fix the electrical component 1 onto the holding mechanism 50 but other techniques may be envisaged by a person skilled in the art to fix the one or more electronic components onto the holding mechanism 50. The holding mechanism 50 may be separated from the luminaire housing 100 during installation or maintenance. Indeed, during maintenance, an operator may remove the holding mechanism 50 to replace the electrical component 1 to be serviced. The holding mechanism 50 may thus be mounted or detached depending on the moment. The moving mechanism 30 may be arranged in between the holding mechanism 50 and the support wall 105 of the electrical compartment 10. When the holding mechanism 50 is mounted, it may be arranged in mechanical contact with the guiding mechanism 40 such that the holding mechanism 50 moves along the guiding axis of the guiding mechanism 40. When the holding mechanism 50 is mounted, the moving mechanism 30 may be configured to enter in mechanical contact with the holding mechanism 50 when the electrical component 1 moves from the first to the second position. When the holding mechanism 50 is mounted, the moveable guiding elements 42 may further be configured to be mechanically attached to the holding mechanism 50. The holding mechanism 50 may be a gear tray 51. The holding mechanism 50 may comprise holes 52 such that the stationary guiding elements 41 may extend through the holes 52. The holding mechanism 50 may thus move with respect to the stationary guiding elements 41.

The luminaire housing 100 may further comprise an abutting mechanism 60 to stop the moving mechanism 30 from moving beyond the first position P1 when moving from the second position P2 to the first position P2. The moveable guiding elements 42 may be configured to abut onto the abutting mechanism 60 when moving in a direction corresponding to a displacement towards the first position P1. In this way, the moveable guiding elements 42 are stopped in their movement by the abutting mechanism 60 when the lid 20 is open. The abutting mechanism 60 may be particularly adapted for embodiments where the luminaire is mounted on a side-entry configuration, and the gravity would pull the moveable guiding elements 42 and the holding mechanism 50 down. The abutting mechanism 60 ensures in such cases that the holding mechanism 50, when mounted onto the moveable guiding elements 42, and the electrical component | mounted thereon do not fall out of the luminaire housing 100 during maintenance upon opening of the lid 20. Alternatively, in mounting situations where the gravity would prevent the holding mechanism and the moving means to detach even without abutting mechanism. the abutting mechanism could be dispensed with. It is here noted that although Figure 1 shows the housing 100A below the lid 20 merely for allowing a better exploded view, this orientation is not necessarily representative of practical embodiments.

Figure 2 illustrates a perspective view of an exemplary first embodiment of the luminaire housing of Figure 1 when the lid 20 is in its open position while Figure 3 illustrates a see-through perspective view of an exemplary first embodiment of the luminaire housing of Figure 1 when the lid is in its closed position. Same reference numbers refer to the same elements in both figures.

In Figure 2, the lid 20 is in its outermost open position, such that the electrical component 1 is exposed to the outside of the luminaire housing 100, whereas in Figure 3, the lid 20 is in the closed position such that the electrical compartment 10 is closed by the lid 20 to form a closed compartment. Figure 2 corresponds to a maintenance state. wherein an operator has pressed the press-release mechanism 18 and the lid 20 is opened to its outermost open position to allow the operator to have easy access to the inside of the electrical compartment 10 to install or replace the electrical component 1. Gravity may pull the lid 20 towards its outermost open position. It is noted however that the inside of the electrical compartment 10 may be accessed from open positions of the lid 20 other than the outermost open position. According to an embodiment, the whole holding mechanism 50 holding the electrical component 1 may be at the time installed or replaced by the operator.

Figures 4 and 5 illustrate see-through cross section views of an exemplary first embodiment of the luminaire housing of Figure 3 and Figure 2 respectively.

In Figure 4, the lid 20 is closed and the electrical component 1 lies in contact with the lid 20 and thus in the second position P2. As can be seen in Figure 2, the plate portion 32 is fixed to the support wall 105 by screws 36 engaging with fixing poles 110. The gear tray 51 engages on one side with the V-shaped plate spring portions 33, compressing it towards the support wall 105. The electrical component 1 is arranged on the other side of the gear tray 51 facing the lid 20. The electrical component 1 and the gear tray 51 are mechanically fixed together. The electrical component 1 and the gear tray 51 are thus pushed on one side against the V-shaped plate spring portions 33 and on the other side against the inner surface 25 of the lid 20. The metallic gear tray 51 is magnetically fixed, coupled, to the magnet rings 42, that are arranged around the bodies 43a of screws or bolts 43 fixed into the fixing poles 120. In this situation, the magnet rings 42 do not touch the heads 43b of the screws or bolts 43. The magnet rings 42 may also not be in contact with the fixing poles 120 into which the screw or bolts 43 are fixed.

In Figure 5, the lid 20 has been opened in a position allowing access to the electrical component 1 and the seal 19 is no longer compressed. The lid 20 may be in its outermost open position or an intermediate open position allowing access to the electrical component 1. In Figure 5, the electrical component 1 is not in contact with the lid 20 and has moved to the first position P1. In this position

Pl, the V-shaped plate spring portions 33 are decompressed, pushing the gear tray 51 away from the support wall 105. In this position P1, the magnet rings 42 abut onto the heads 43b of the screws or balts 43.

Figure 4 and 5 illustrate the end positions of the displacement of the electrical component 1 between the first and second positions P1 and P2 based on a movement of the lid 20. The lid 20 may be moved manually by an operator between an uttermost open position (as illustrated in

Figure 2) and a closed position (as illustrated in Figure 3). The lid 20 may be pivoted around the hinges 22 to open or close the electrical compartment 10. The lid 20 and the electrical component 1 are so located with respect to each other that by moving the lid 20, the electrical component 1 may establish or lose contact with the lid 20. In an embodiment, at least an outer surface 1a of the electrical component 1 may come in mechanical contact with an inner surface 25 of the lid 20, when the lid 20 is being closed. When the lid 20 is closed, the moving mechanism 30 pushes back the electrical component 1 towards the lid 20 such that the electrical component 1 is prevented from moving inside the electrical compartment 10.

According to an exemplary embodiment, the lid 20 may be further configured to dissipate heat through its external surface 21 while the electrical component 1 is arranged in thermal contact with the inner surface 25. The lid 20 may be for instance made of metal and optionally may have cooling fins 23. In this way, the lid 20 may act as heatsink dissipating heat generated by the electrical component 1 and conducted through the surfaces 1a, 24 and 21 towards the outside of the luminaire housing 100 where convection may occur.

According to an exemplary embodiment, the luminaire housing 100 may be oriented with the external surface of the lid 20 towards the ground when the lid 20 is closed. In such an exemplary embodiment, the lid 20 may be mounted such that it can go from closed to open position using gravity. In other exemplary embodiments, the luminaire housing 100 may be oriented such that the lid 20 opens sideways or upwards, in which case further actuating mechanism may be provided to actuate the lid 20 to go from closed to open position. For such an actuating mechanism, a skilled person may envisage well known techniques coming within the scope of the customary practice such as biasing springs among others.

According to an exemplary embodiment, the moving mechanism 30 may comprise a resilient biasing mechanism configured to exert a resilient bias force when the electrical component 1 is moved from the first position P1 to the second position P2. The resilient biasing mechanism may be configured to associate the first position P1 in which the electrical component 1 is accessible via the open lid 20 with a relieved state and to associate the second position P2 in which the electrical component 1 is in contact with the lid 20 with a biased state. In other words, an operator may push the resilient biasing mechanism to a biased (compressed) state by closing the lid 20.

Alternatively to the resilient biasing mechanism as illustrated in the Figures, the moving mechanism 30 may comprise an actuating mechanism such as an electronically controlled motor/actuator to move the electrical component 1 between the first and second positions in relation with the open and closed positions of the lid 20. In both cases, the movement of the lid 20 between open and closed positions triggers a respective movement of the electrical component 1 between its first and second positions P1 and P2.

Figures 6 and 7 illustrate perspective views of an exemplary embodiment of a moving mechanism 30 comprising a spring load 31. In both figures, the spring load 31 is in its relieved state associated to the lid 20 being open.

Figure 6 illustrates an enlarged view of the spring load 31 showing the back side of the spring load 31 facing the support wall 105. The spring load 31 may be formed from a rectangular metal sheet part which has been cut on its inside to form a plate portion 32 and two spring portions 33. The two spring portions 33 may be bend towards the same side of the plate portion 32 and at an angle with the plate portion 32 to form a V-shape spring that may be compressed towards the support wall 105 when the electrical component 1 moves from the first position P1 to the second position P2. The two spring portions 33 may be bend towards the gear tray 51. A bumper element 34 may be arranged between the spring load 31 and a support wall 105 of the electrical compartment 10 to absorb at least part of the movement of spring load 31 when the electrical component moves from the first position P1 to the second position P2.

Figure 7 illustrates further the constitution of the spring load 31. The two spring portions 33 may comprise wing portions 33b and bend end portions 33a at the extremities of the wing portions 33b.

The bend end portions 33a may enter in contact with the gear tray 51. The wing portions 33b may be attached to the plate portion 32, more in particular to a central portion 32a of the plate portion 32. The central portion 32a may thus connect both wing portions 33b. The plate portion 32 may further comprise side portions 32b and 32c and end portions 32d at the end of the longitudinal sides of the plate portion 32. The central portion 32a, the side portions 32b and 32 c as well as the end portions 32d may be all connected with each other. The end portions 32d may comprise holes for fixing the spring load 31 to the support wall 105 using screws or bolts 36 engaging with fixing poles 110. Any other suitable well-known fixing mechanism may alternatively be envisaged to fix the plate portion 32 to the electrical compartment 10. The spring load 31 may be arranged as an integral element comprising the spring portions 33 and the plate portion 32 for fixing the spring 35 load 31 to the electrical compartment 10. Alternatively the spring load 31 may comprise only a spring plate portion acting as a leat spring plate having a V-shape that may be compressed to enlarge the V-shape. The spring load 31 may thus be deformed when the electrical component 1 is moved between the first and second positions. In particular the spring portions 33 may bend during the movement between the first and second positions. The bumper element 34 may be arranged to abut onto the central portion 32a such that this portion 32a does not deform beyond a predetermined point when the wing portions 33 are compressed.

Figure 8 illustrates an enlarged see-through perspective view of a portion of Figure 2 showing in more details the moving mechanism 40 and its interaction with the holding mechanism 50 and the abutting mechanism 60. As explained previously, the guiding mechanism 40 may be provided for guiding the electrical component 1 along a guiding axis A. The guiding mechanism 40 may comprise one or more stationary guiding elements 41 in the form of guiding rods extending in direction perpendicular to the surface 21 of the lid 20 when said lid 20 is in the closed position. In the exemplary embodiment of Figure 8, the stationary guiding elements 41 may be formed by the bodies 43a of one or more screws or bolts 43 fixed into the electrical component compartment 10.

The screw or bolts 43 may be fixed into fixing poles 120 that are integral to the housing body 100a and located on the inner surface of the support wall 105. Further the abutting mechanism 60 may comprise the heads 43b of the one or more screws or bolts 43. The moveable guiding elements 42 may be ring shaped magnets for magnetically coupling on one side with the gear tray 50 and for sliding on the other side onto the stationary guiding elements 41. A magnet 42 may be configured as a flat ring having one surface for connection to the gear tray 51. The magnet 42 may have an inner diameter d2 larger than the diameter d1 of the body 43a of a screw or bolt 43 such that the magnet 42 may move along the body 43a of a screw or bolt 43. In such an embodiment, the gear tray 51 may further comprises holes 52 having a diameter d4 larger than the diameter d1 of the bodies 43a of the screws or bolts 431 such that the gear tray 51 coupled with the one or more magnets 42 may move with respect to screws or bolts 43. The inner diameter d2 of a magnet 42 may further be dimensioned to abut onto the abutting mechanism 60, in particular may be smaller than the diameter d3 of the head 43b of a screw or bolt 43. In particular, when the electrical component 1 is in the second position P2, part of the heads 43b of the screws or bolts 43 disappear inside the holes 52 of the gear tray 51.

Whilst the principles of the invention have been set out above in connection with specific embodiments, it is understood that this description is merely made by way of example and not as a limitation of the scope of protection which is determined by the appended claims.

Figure references: 1 electrical component

1a external surface of the electrical component 2 light sources 10 electrical compartment 11 electrical compartment peripheral wall 12 light compartment peripheral wall 13 grooves 15 light compartment 16 cable passage 17 hinge holes 18 press-release elements 19 seals 20 lid 21 external surface of the lid 22 hinges 23 fins 24 lid internal peripheral wall 25 internal surface of the lid 27 light cover 30 moving mechanism 31 spring load 32 plate portion 32a central plate portion 32b, 32c side plate portions 32d end plate portions 33 spring portion 33a end spring portions 33b wing spring portions 34 bumper element 35 holes 36 screws or bolts guiding mechanism 41 stationary guiding element

42 moveable guiding element 43 screws or bolts 43a body of screw or bolt 43b head of screw of bolt 50 holding mechanism 51 gear tray 52 holes 53 screws or bolts 60 abutting mechanism 19 100 Luminaire housing 100A luminaire body 101, 103 lateral housing walls 102, 104 longitudinal housing walls 105 electrical compartment support wall 106 light compartment support wall 110 fixing poles 120 fixing poles

Claims

Conclusions

1. A lighting housing (100) comprising: - an electrical compartment (10) for housing an electrical component (1), - a cover (20) movable relative to the electrical compartment (10) between an open position and a closed position, where in the open position the electrical component (1) is exposed to the outside of the lighting housing and where in the closed position the electrical compartment is closed by the cover, - a movement mechanism (30) for moving the electrical component (1) between a first position (P1) and a second position (P2}, the first position being reached when the cover (20) is in an open position for access to the electrical component (1) and the second position (P2) is reached when the cover (20) is in its closed position, and in the second position (P2) the electrical component (1) is arranged in contact with the cover (20).

The lighting housing according to claim 1, wherein the cover (20) is arranged to dissipate heat via its outer surface (21) and wherein in the second position the electrical component (1) is arranged in thermal contact with the cover (20) .

The lighting housing according to any one of the preceding claims, wherein the movement mechanism (30) is a resilient impact mechanism for pressing the electrical component (1) against the cover (2) in the second position.

The lighting housing of claim 3, wherein the motion mechanism (30) includes a spring load (31) that is compressed when the motion mechanism (30) moves from the first position (P1) to the second position (P2).

The lighting housing according to claim 4, wherein the spring load (31) comprises at least one spring part (33), preferably two spring parts in V-shape, which are compressed towards a support wall (105) of the electrical compartment (10) when the electrical component (1) moves from the first position (P1) to the second position (PZ).

The lighting housing according to claim 4 or 5, wherein the spring load is arranged as an integral element further comprising a plate portion (32) for attaching the spring load (31) to the electrical compartment (10).

The lighting housing according to any one of the preceding claims wherein the movement mechanism (30) further comprises one or more impact elements (34) arranged between the spring load (31) and the support wall (105) of the electrical compartment (10) to provide at least a block part of the movement of the spring load (31) when the electrical component (1) moves from the first position (P1) to the second position (P2).

The lighting housing according to any one of the preceding claims, further comprising a guiding mechanism (40) for guiding the electrical component (1) during movement between the first and second positions.

The lighting housing according to the previous claim, wherein the guide mechanism (40) comprises stationary guide elements (41) and movable guide elements (42).

The lighting housing according to the previous claim, wherein the stationary guide elements (41) are arranged to extend in a direction perpendicular to an outer surface (21) of the cover (20) when the cover (20) is in a closed position .

The lighting housing according to any one of claims 9-10, wherein the movable guide elements (42) are adapted to move along the stationary guide elements (41).

The lighting housing according to any one of claims 9-11, wherein the movable guide elements (42) are annular.

The lighting housing according to any one of claims 9-12, wherein the stationary guide elements (41) are guide bars.

The lighting housing according to any one of claims 9 to 13, wherein the stationary guide elements (41) are the bodies (43a) of one or more screws or bolts (43) fixed in a supporting wall (105) of the electrical compartment (10).

The lighting housing according to any one of the preceding claims, further comprising a mounting mechanism (50) for mounting at least the electrical component (1), and optionally for mounting other electrical components.

The lighting housing according to the previous claim, wherein the movement mechanism (30) is arranged between the mounting mechanism (50) and a support wall (105) of the electrical compartment (16).

The lighting housing according to any one of claims 8 to 15 in combination with any one of claims 15 to 16, wherein the mounting mechanism (50) is arranged in mechanical contact with the guide mechanism (40) such that the mounting mechanism (50) moves along a guide axis of the guide mechanism (40).

The lighting housing according to any one of claims 15-17, wherein the movement mechanism (30) is arranged to come into mechanical contact with the mounting mechanism (50) when the electrical component (1) moves from the first position to the second position.

The lighting housing according to any one of claims 9-14, in combination with any one of claims 15-18, wherein the movable guide elements (42) are further arranged to be mechanically attached to the mounting mechanism (50).

The lighting housing according to any one of claims 9-15, in combination with any one of claims 15-19, wherein the movable guide elements (42} are magnets adapted to magnetically hold the mounting mechanism (50).

The lighting housing according to any one of claims 15-20, wherein the mounting mechanism (50) is a parts plate (51).

The lighting housing of any one of the preceding claims, further comprising a stop mechanism (60) to stop movement of the motion mechanism (30) beyond the first position (P1) while moving from the second position (P2) to the first position ( PL).

The lighting housing of claims 14 and 22, wherein the counter mechanism (60) includes the heads (43b) of one or more screws or bolts (43).

The lighting housing of claims 14, 20 and 21, wherein the component plate (51) includes openings (52) having a diameter (d4) greater than the diameter (d1) of the bodies (43a) of the one or more screws or bolts (43) such that the component plate (51) engaging the one or more annular magnets (42) is movable relative to the bodies (43a) of the one or more screws or bolts (43).

The lighting housing of claims 20 and 23, wherein the inner diameter (d2) of the annular magnets (42) is smaller than the diameter (d3) of the heads (43b) of the one or more screws or bolts (43) such that that the annular magnets (42) abut the heads (43b) of the one or more screws or bolts (43).

The lighting housing according to any one of the preceding claims, wherein the cover (20) is made of metal.

The lighting housing according to any one of the preceding claims, wherein in the second position a surface (1a) of the electrical component (1) is arranged in thermal contact with an inner surface (25) of the cover (20).

The lighting housing according to any one of the preceding claims, wherein the cover (20) is mounted such that in the mounted position, the cover (20) can move from the closed position (P2) to the open position (P1) using gravity .

The lighting housing according to any one of the preceding claims, wherein the cover (20) is a pivotable cover.

The lighting housing according to any preceding claim, further comprising at least one sealing member (19) for sealing the electrical compartment (10) when the cover (20) is in the closed position (P2).

The lighting housing according to any one of the preceding claims, wherein the electrical component (1) is a driver for driving light sources (2).

The lighting housing of the previous claim, further comprising at least one or more light sources (2) connected to the driver.

The lighting housing according to any one of the preceding claims, further comprising a light compartment (15) for housing one or more light sources (2).

The lighting housing of the previous claim, further comprising a cable passageway (16) between the electrical compartment (10) and the light compartment (15).