WO2023025969A1

WO2023025969A1 - Assembly for a light fixture system

Info

Publication number: WO2023025969A1
Application number: PCT/EP2022/073983
Authority: WO
Inventors: Maarten Robrecht Michel DEMUNSTER; Paul Jozef Cornelius AMELOOT; Peter Omer Hubert AMELOOT
Original assignee: Delta Light N.V.
Priority date: 2021-08-27
Filing date: 2022-08-29
Publication date: 2023-03-02
Also published as: EP4392707A1; WO2023025967A1; EP4392706A1; EP4392708A1; WO2023025968A1

Abstract

Assembly (1) for forming a fixture system, such as a light fixture system, comprising: a mounting profile (100) with side walls (101, 102) and an upper wall (103) which bound a mounting space (110) and with an open lower end through which one or more functional modules, such as one or more light modules, can be mounted in the mounting space; a coupling unit (200) with two opposite side walls (201, 202) which are provided to lie substantially in line with the side walls of the mounting profile, wherein the coupling unit is configured to be connected to an end part (111) of the mounting profile; and wherein the coupling unit is provided at a lower end with a ventilation mouth (250) between the two opposite side walls, and is further provided with a ventilation connection opening (260) configured to be connected to a ventilation channel (VB).

Description

ASSEMBLY FOR A LIGHT FIXTURE SYSTEM

Field

The present invention relates to an assembly for forming a fixture system, such as a light fixture system, particularly for light fixtures which are intended to be mounted on or in a wall, such as a wall or a ceiling of a space in a building.

Background

Light fixtures are already known and are typically provided on a ceiling or wall. Both the installer, the architect and the client will here have wishes in respect of the design of the light fixtures. One of these wishes is that the light modules can on one hand be arranged in simple and rapid manner and as desired, and that a finished result with a high degree of functionality, flexibility and personalization options can on the other hand be created. In addition, there are strict requirements that must be met in respect of regulations and/or legislation, for instance the EPB regulations.

Summary

An object of the invention is to develop a system wherein light fixtures can be provided on or in a ceiling in simple and rapid manner and with a high degree of flexibility and personalization options, and wherein the system can be provided with further functionalities.

According to a first aspect there is provided an assembly for forming a fixture system, such as a light fixture system. The assembly comprises a mounting profile and a coupling unit. The mounting profile has side walls and an upper wall which bound a mounting space and has an open lower end through which one or more functional modules, such as one or more light modules, can be mounted in the mounting space. The coupling unit has two opposite side walls which are provided to lie substantially in line with the side walls of the mounting profile. The coupling unit is configured to be connected to an end part of the mounting profile. The coupling unit is provided at a lower end with a ventilation mouth between the two opposite side walls in order to receive and/or discharge an airflow via this ventilation mouth, and is further provided with a ventilation connection opening configured to be connected to a ventilation channel.

Through the coupling unit a connection is provided with a ventilation channel such that the system is provided with an additional ventilation function. Also, by providing the mounting profile, the light modules may be received in an easy manner.

Embodiments of the invention are based on the insight that a further functionality can be imparted to the fixture system using the coupling unit, particularly a ventilation property. A space can hereby be provided with ventilation and lighting using the fixture system, without providing additional ventilation holes and/or ventilation units in the walls and/or the ceilings. These conventional ventilation holes and/or ventilation units have the drawback that they take up available wall space and/or ceiling space, and adversely affect the aesthetic of the space. By providing the coupling unit with a ventilation connection opening it can be connected to a ventilation pipe, whereby the fixture system can be provided with an airflow, such as a clean ventilation flow. In this manner a space (e.g. a room) can be provided at the same time with a fixture system and ventilation. Also, impure air can be discharged from the space through the coupling unit. Such impure air may be sucked out of the space through the ventilation mouth and discharged through the ventilation channel.

Because the opposite walls of the coupling unit are configured to be substantially aligned with the mounting profile, it is ensured that the coupling unit can be arranged suitably in the assembly.

In an embodiment the coupling unit has two connecting walls which are oriented substantially perpendicular to a length direction of the mounting profile and which connect the opposite side walls to each other. Preferably, the coupling unit further has an upper wall which connects the opposite side walls to each other. In this manner, the two opposite side walls, the connecting walls and the upper wall bound an inner space which is situated between the ventilation connection opening and ventilation mouth. Using the two connecting walls the mounting space of the mounting profile and the inner space can be separated from each other, such that no false air can flow between these spaces when the ventilation is tested with a testing unit (not shown). In this way reliable results can be achieved during testing, whereby it is possible to comply with regulations and/or legislation, for instance the EPB regulations.

In an embodiment the inner space of the coupling unit is situated between the ventilation connection opening and ventilation mouth. The ventilation mouth is intended to be directed toward the space to be ventilated. The ventilation connection opening is configured to be coupled to a ventilation pipe.

In an embodiment the ventilation connection opening is provided in a first sidewall of the two opposite side walls. In this way the ventilation pipe can be fastened and/or coupled better to the ventilation connection opening. Optionally, a seal or closure may be provided between the ventilation pipe and the ventilation connection opening. The ventilation pipe may be provided over or in the ventilation connection opening. Preferably, the ventilation channel delimited by the ventilation pipe has dimensions which substantially match the dimensions of the ventilation connection opening. Preferably, the ventilation connection opening is delimited by a tube-like portion. Preferably, the ventilation connection opening has a similar shape as the ventilation channel. In this way leakage flows can be avoided. In an embodiment the ventilation connection opening is bounded by a tubular part. The ventilation connection opening preferably has a form similar to the ventilation channel.

In an embodiment the tubular part has an axis lying substantially perpendicularly of the first side wall of the coupling unit, typically perpendicularly of the two opposite sidewalls. In this way the ventilation pipe can be connected substantially horizontally in a ceiling, and the distance between a dropped ceiling and the overlying floor can be kept small, whereby the height of the space therebelow can be kept sufficiently great.

Preferably, the first sidewall has a height which is larger than a height of the second sidewall of the two opposite sidewalls of the coupling unit. The ventilation tube can be connected to the first sidewall. The upper wall may then be inclined, and may be either flat or curved.

In an embodiment the coupling unit is provided with a connecting means which extends along at least one of the two opposite side walls and is configured to be coupled to the end part of the mounting profile.

In an embodiment, the connecting means comprises a separate connecting piece, such as a plate, wherein the mounting profile and the coupling unit are configured to be coupled using the connecting piece. For example, at least one of the two opposite sidewalls of the coupling unit, and preferably both, may be provided with a slot for receiving a portion of the connecting piece and one of the two sidewalls of the mounting profile, and preferably both, may be provided with a slot for receiving a portion of the connecting piece.

In another embodiment, the connecting means is fixed to the coupling unit and protrudes in the extension of at least one of the two opposite sidewalls of the coupling unit, and preferably both. The mounting profile may then be configured to receive the protruding portion of the connection means.

In an embodiment the assembly comprises a connecting piece, such as a plate, as an additional element, wherein the mounting profile and the coupling unit are configured with engaging means for engaging the connecting piece such that the coupling unit can be coupled to the end part of the mounting profile; or wherein one of the mounting profile and the coupling unit is configured with an engaging means and the other is configured with the connecting piece, wherein all this is designed so that the engaging means can engage the connecting piece such that the coupling unit can be coupled to the end part of the mounting profile. In an embodiment the mounting profile is an elongated profile, preferably a profile extending over a distance of at least 20 cm, preferably at least 30 cm. Preferably the mounting profile is an extruded profile, for example an extruded aluminum profile. In this way the personalization options of the fixture system can be increased in that more options for configuring the functional modules are created.

The functional modules are preferably light modules. The functional modules can also be selected from: a sensor module, such as camera module or a smoke detection module, sound module, etc.

In an embodiment the side walls and/or the upper wall of the mounting profile are provided on an inner side bounding the mounting space with one or more engaging means and/or connecting means, such as electrical connection means, for mounting a functional module and/or a fastening piece in the mounting space of the mounting profile.

In an embodiment the at least one of the and preferably two of the two connecting walls of the coupling unit are separating walls which are intended to separate air in the inner space of the coupling unit from the air in the mounting space of the mounting profile.

In an embodiment the coupling unit is configured with control means, for example a control valve unit, for adjusting an effective air throughflow space between the ventilation opening and the ventilation mouth. In this way the functionality of the fixture system is increased in that the air flow rate can be controlled. In an embodiment the control means are selected from: a control valve, a supply/discharge valve, a movable blade and an associated ventilation hole of a second blade, for instance a rotatable first disc with one or more first ventilation holes which is mounted rotatably around a shaft part and a second disc with one or more second ventilation holes such that by rotating the first disc, the air passage through the first and second disc can be varied.

In an embodiment, the coupling unit is configured to receive a flow limiting piece and/or a functional module such as a light module, between the opposite sidewalls. By inserting a flow limiting piece and/or a functional module, the size of the ventilation mouth may be limited, and thus the flow may be adjusted.

According to a second aspect, there is provided an assembly for forming a fixture system, such as a light fixture system. The assembly comprises a mounting profile and a coupling unit. The mounting profile has side walls and an upper wall which bound a mounting space and has an open lower end through which one or more functional modules, such as one or more light modules, can be mounted in the mounting space. The coupling unit has a connection wall dimensioned to be connected to an open outer end of a mounting profile, wherein the connection wall is provided with a ventilation connection opening delimited by a tube-like ventilation connection part that is configured to be connected to a ventilation channel. The open lower end of the mounting profile forms a ventilation mouth to receive and/or discharge an airflow.

Preferably, the tube-like ventilation connection part extends substantially in a length direction of the mounting profile.

Preferably, the tube-like ventilation connection part has a cross section which transitions from a substantially rectangular shape at an end that is coupled to the mounting profile to a round shape at a connection end, wherein preferably the surface area of the cross section increases in the direction of the connection end.

According to a third aspect, there is provided an assembly for forming a fixture system, such as a light fixture system. The assembly comprises a housing and a coupling unit. The housing may be for example a mounting profile or a mounting casing. The housing has at least two sidewalls and an upper wall which bound a mounting space and has an open lower end through which one or more functional modules, such as one or more light modules, can be mounted in the mounting space; wherein a first sidewall of the at least two sidewalls or the upper wall is provided with an opening. The coupling unit has a ventilation mouth which is configured to be connected to the opening, and the coupling unit is provided with a ventilation connection opening configured to be connected to a ventilation channel, such that an airflow can be received and/or discharged via the open lower end, the ventilation mouth and the ventilation connection opening.

Preferably, the coupling unit has a connection wall in which the ventilation mouth is provided, wherein the dimensions of the connection wall are adapted to the dimensions of the opening in the housing, such that the connection wall completely covers the opening.

Preferably, the ventilation connection opening is bounded by a tubular part, preferably a tubular part with a round cross section.

Preferably, the connection wall is provided with one or more holes to receive a connection means, such as a screw or bolt, and the housing is configured accordingly, for example with receiving openings for the connection means, to couple the connection wall to the housing. Preferably, the mounting space is provided with a mounting means and/or an electrical connection means for coupling a lighting module.

In an exemplary embodiment, the housing is a mounting piece configured to be arranged in an opening of a wall, preferably in an opening of a ceiling. The mounting piece may be provided with a circumferential flange configured to be mounted flush with the wall.

Optionally, the coupling unit may be configured with control means, for example a control valve unit, for adjusting an effective air throughflow space between the ventilation connection opening and the ventilation mouth. The control means may be selected from: a control valve, a supply/discharge valve, a rotatable first disc with one or more first ventilation holes which is mounted rotatably around a shaft part and a second disc with one or more second ventilation holes, said first and second disc being arranged and configured such that by rotating the first disc, the air passage through the first and second disc can be varied. In the latter case the shaft part may be arranged centrally in the ventilation connection opening.

A further embodiment of the invention provides an assembly for forming a fixture system, wherein the assembly comprises: a mounting profile with side walls and an upper wall which bound a mounting space and with an open lower end through which one or more functional modules, such as one or more light modules, can be mounted in the mounting space; a coupling unit which is configured to be connected to an open end part of the mounting profile, all this such that an airflow can be received and/or discharged via the open end part, wherein the coupling unit is provided with a ventilation connection opening configured to be connected to a ventilation channel.

In a further embodiment it is the case that the coupling unit comprises a ventilation mouth, wherein all this is configured such that, in assembled state of the assembly, the ventilation mouth is directed toward the mounting space of the mounting profile.

In a further embodiment is the case that the coupling unit comprises a first wall (400), wherein the dimensions of the first wall are configured correspondingly to the dimensions of the open end part of the mounting profile, preferably for filling the open end part. In a further embodiment it is the case that the ventilation mouth lies in a plane of the first wall.

In a further embodiment it is the case that the ventilation connection opening is provided on the first wall of the coupling unit. In a further embodiment it is the case that the ventilation connection opening is bounded by a tubular part.

In a further embodiment it is the case that the first wall has one or more throughfeed holes for receiving a throughfeed element therein, wherein the mounting profile is configured correspondingly, for instance with half-moon shaped recesses, so as to be connected to the open end part of the mounting profile using a throughfeed element.

Brief Figure Description

The accompanying drawings are used to illustrate presently preferred non-limiting exemplary embodiments of devices of the present invention. The above and other advantages of the features and objects of the invention will become more apparent and the invention will be better understood from the following detailed description when read in conjunction with the accompanying drawings, in which:

Figures 1A and IB show perspective views of a coupling unit of a first embodiment of an assembly for forming a light fixture system with ventilation, looking at an upper wall and an open lower end thereof, respectively.

Figures 2A, 2B and 2C show respectively a side view, a front view and a perspective view of the coupling unit shown in figures 1A and IB, in a mounting position for a ceiling with the open lower end in the lowest position.

Figure 3 shows a bottom view of an embodiment of the coupling unit shown in figures 1 A and IB in assembled state, arranged between two mounting profiles.

Figure 4A shows an exploded perspective view the first embodiment, with the coupling unit arranged between two mounting profiles.

Figure 4B shows a perspective detail view of the mounting profile shown in figure 4A. Figure 4C shows a functional module, here a light module, for mounting in the mounting profile shown in figure 4A.

Figure 5A shows a perspective top view of a second embodiment of an assembly mounted in a wall. Figure 5B shows a front view of the embodiment shown in figure 5A.

Figure 5C shows a cross-sectional view along section line CC shown in figure 5B.

Figures 6A and 6B show perspective view of a further embodiment of a coupling unit similar to the coupling unit of Figures 1 A-2C.

Figure 6C is an exploded perspective view of the coupling unit of Figures 6 A and 6B.

Figure 6D is a sectional view of a coupling unit of Figures 6 A ad 6B. Figure 7 is a perspective view of a further embodiment of an assembly for forming a lighting fixture system.

Figures 8A is a schematic perspective view of an assembly with a coupling unit and a mounting profile.

Figures 8B is a schematic perspective view of an assembly with a coupling unit and a mounting casing.

Figure 9A and 9B are cross section of the embodiments of Figures 8A and 8B, respectively.

Description of preferred embodiments

Figures 3 and 4A illustrate an embodiment of an assembly 1 for forming a light fixture system. The assembly a comprises a mounting profile 100 and a coupling unit 200. The coupling unit 200 is shown in more detail in Figures 1A, IB, 2 A, 2B, and 2C. The mounting profile 100 is shown in detail in Figure 4B.

The mounting profile 100 has opposite side walls 101, 102 and an upper wall 103 which bound a mounting space 110 and has an open lower end through which one or more functional modules, such as one or more light modules 300 (see Figure 4C), can be mounted in the mounting space 110.

The coupling unit 200 has two opposite side walls 201, 202 which preferably are provided to lie substantially in line with the side walls of the mounting profile 100, see Figures 3 and 4 A. In this manner the coupling unit can be easily included in a system of mounting profiles. The coupling unit 200 has two connecting walls 203, 204 which are oriented substantially perpendicular to a length direction of the mounting profile 100 and which connect the opposite side walls 201, 202 to each other. The coupling unit further has an upper wall 205 which connects the opposite side walls 201, 202 to each other.

Preferably, the coupling unit 200 is configured to be connected to an end part 111 of the mounting profile. The coupling unit 200 is provided at a lower end with a ventilation mouth 250 between the two opposite side walls 201, 2022 in order to receive and/or discharge an airflow LS via this ventilation mouth 250, see Figure IB, and is further provided with a ventilation connection opening 260 configured to be connected to a ventilation pipe VB, see Figure 2A. The ventilation connection opening 260 is provided in a first side wall 201 of the two opposite side walls 201, 202. The two opposite side walls 201, 202, the connecting walls 203, 204 and the upper wall 205 bound an inner space 210 which is situated between the ventilation connection opening 260 and ventilation mouth 250. Preferably, the ventilation connection opening 260 is bounded by a tubular part 260a. Because of the presence of connection walls 203, 204, no air flows to the mounting space 110 of the mounting profile. In this manner the air flow is better controlled, leakage flows are reduced, and the ventilation can be tested by a test unit, wherein the measurements can be performed accurately, see also the discussed below of Figures 5A-5C.

Preferably, the tubular part 260a has an axis lying substantially perpendicularly of the first side wall 201 of the coupling unit 200, typically perpendicularly of the two opposite sidewalls 201, 202, see Figures 2A-2C. The air flow LS can flow from a ventilation pipe VB via the ventilation connection opening 260 to the inner space 210 to the ventilation mouth 250 to provide a room with fresh air. Also the inverse flow is possible, to remove air from a room.

The first sidewall 201 has a height which is larger than a height of the second sidewall 202 of the two opposite sidewalls 201 202 of the coupling unit 200. The upper wall 205 is an inclined wall which is flat in the embodiment of Figures 1 A-1B but which may also be rounded as hown in Figure 5A. The upper wall 205 will guide the air flow from the ventilation mouth 250 to the ventilation connection opening 260 and vice versa. The inclined upper wall 205 extends in a plane, and the central axis of the ventilation mouth and of the ventilation connection opening are each at an angle with respect to said plane, said angle being between 5° and 85°, preferably between 15° and 75° more preferably between 30° and 60°, for example between 40 and 50°. This may promote a laminar air flow may between the ventilation mouth and the ventilation connection opening, avoiding or reducing turbulent flows which cause undesirable noise.

Preferably, the ventilation connection opening 260 is delimited by a tube-like portion 260a. Preferably, the ventilation connection opening 260 has a similar shape as the ventilation channel. The skilled person understands that the ventilation pipe VB and the ventilation connection opening may have various shapes, such as a round cross sectional shape or a polygonal cross sectional shape. The ventilation pipe may be rigid or flexible. Optionally, a seal or closure may be provided between the ventilation pipe VB and the ventilation connection opening 260. The ventilation pipe VB may be provided over or in the ventilation connection opening 260. In the embodiment of Figure 2A, the diameter of the ventilation pipe VB is slightly larger than the diameter of the ventilation connection opening 260, and the pipe VB is arranged over the ventilation connection opening 260. Preferably, the ventilation channel delimited by the ventilation pipe VB has dimensions which substantially match the dimensions of the ventilation connection opening 260. Optionally, a clamp ring may be used to fix the ventilation pipe. Also, other sealing and/or coupling means may be used to couple the ventilation pipe VB in a tight manner to the ventilation opening 260. The mounting profile 100 is an elongated profile, preferably a profile extending over a distance of at least 20 cm, more preferably at least 30 cm. The mounting profile 100 may be an extruded profile. Preferably, the coupling unit has a length between 10 cm and 60 cm, as seen in a length direction of the mounting profile 100.

Preferably, the coupling unit 200 is provided with a connecting means 280 at each side walls 201, 202 and is configured to be coupled to an end part of the mounting profile 100. The connecting means 280 may be a plate which is fixed to the coupling unit and protrudes in the extension of the respective sidewall 201, 202 of the coupling unit 200. As shown in Figure 4A, the plate 280 may then be received in associated slots 104 provided in the mounting profile 100. The slots 104 may be formed between two ribs 104a, 104b arranged on each of the sidewalls 101, 102, see also Figure 4B. In this way the coupling unit 100 can be easily coupled to an end part 111 of the mounting profile 100, preferably in a toolless manner.

In the illustrated embodiment the connection means 280 is fixed to the coupling unit, but the skilled person understands that other connection means may be used which are not fixed to the coupling unit. For example, the connecting means may comprise a separate connecting piece, such as a plate, wherein the mounting profile and the coupling unit are configured to be coupled using the connecting piece. For example, at least one of the two opposite sidewalls of the coupling unit may be provided with a slot for receiving a portion of the connecting piece and one of the two sidewalls of the mounting profile may also be provided with a slot for receiving a portion of the connecting piece. In yet another embodiment the connection means may be fixed to the mounting profile. Also a combination may be used, where both the mounting profile and the coupling unit are provided with a connection means.

As shown in Figure 4B, the mounting profile is configured for receiving one or more functional modules, such as a lighting module 300 or a driver for a lighting module, in the mounting space 110. The side walls 101, 102 and/or the upper wall 103 of the mounting profile 100 may be provided on an inner side bounding the mounting space 110 with one or more engaging means 151 and/or connecting means, such as electrical connection means 152, for mounting a functional module 300 and/or a fastening piece 301 in the mounting space 110 of the mounting profile 100 and/or for connecting it to an electrical control and/or power circuit. The mounting profile 100 is dimensioned such that a portion of a functional module 300 can be received between the opposite sidewalls 101, 102. The engaging means 151 and electrical connection means 152 are provided at an inner side of the sidewalls 101, 102. The electrical connection means 152 may comprise e.g. two electrical lines for powering a light module 300, and at least one control line, preferably at least two control lines for transferring a control signal, such as a dimming signal, for controlling the light module 300. The electrical power and/or control lines may be provided in channels formed at the inner side of the sidewalls 101, 102, see Figure 4B.

In some embodiments the upper wall 103 may be provided with a through-hole or reduced wall thickness portion 153 to receive a connection element, such as a screw or bolt. In this way, the mounting profile 100 may be easily fixed to a wall. The reduced wall thick portion 153 is an area with reduced mechanical strength as compared to the surrounding area.

In other embodiments, the sidewalls 101, 102 may be provided, and in particular formed, with outwardly extending flanges (not illustrated). Preferably, the flanges are provided at a lower end of the sidewalls 101, 102. In that manner the mounting profile 100 may be built in a wall, wherein the flanges are fixed against the wall. Similarly, the coupling unit 200 may be provided, and in particular formed, with outwardly extending flanges (not illustrated) for the same purpose. Preferably, the flanges are provided at a lower end of the sidewalls 201, 202. Figure 6E illustrates an embodiment where the sidewalls 201, 202 of coupling unit 200 are provided with L-shaped profiles to form outwardly protruding flanges 270 which can be fixed against a dropped ceiling. The flanges 270 may be fixed with screws or using glue or similar.

Figures 5A-5C illustrate another embodiment similar to the embodiment of Figures 3 and 4A in which the same or similar components have been indicated with the same reference numerals and reference is made to the description above. In this embodiment the upper wall 205 of the coupling unit 200 is curved. Further a separate connection means in the form of a plate 382 is provided and the mounting profile 100 and coupling unit 200 are provided with associated receiving slots 182, 282 in which the plate 382 can be slid.

Further, the ventilation connection opening 260 is provided with a flow control means for adjusting an effective air throughflow space between the ventilation connection opening 260 and the ventilation mouth 250. The flow control means comprise a first disc 261 with one or more first ventilation holes 264 and a second disc 262 with one or more second ventilation holes 265 which are configured to be able to at least partly overlap. The second disc 262 is arranged in the tube-like portion 260a. The periphery of the first and/or second disc 261, 262 preferably substantially matches the inner periphery of the tube-like portion 260a, so that any air flow between the periphery of the first and/or second disc 261, 262 and the tube-like portion 260a is limited or avoided. The first disc 261 is mounted rotatably around a shaft part 263 arranged on the second disc 262 such that by rotating the first disc 261, the overlap between the ventilation holes 264, 265 is adjusted and the air passage through the first and second disc 261, 262 is varied. Optionally, the upper wall 205 of the coupling unit 200 may be removable so that the discs 261, 262 can be easily accessed.

Figure 5B illustrates how a measurement test unit TU may be arranged below the ventilation mouth in order to perform an air flow test. Thanks to the connecting walls 203, 204 the air in the inner space 210 does not leak away to the mounting space 110 of the mounting profiles 100.

In other (non-illustrated) embodiments the coupling unit 200 may be provided with any other suitable flow control means, such as a control valve or a supply/discharge valve. Alternatively, a separate flow control unit (not illustrated) may be provided between the ventilation connection opening 260 and the ventilation pipe VB. In that case the ventilation connection opening 260 may be configured to be connected to the separate flow control unit.

Figures 6 A, 6B, 6C and 6D illustrate another embodiment of a coupling unit 200 similar to the embodiment of the coupling unit of Figures 3 and 4A and 5A-5C and the same or similar components have been indicated with the same reference numerals. Reference is made to the description above for those components.

As illustrated in Figure 6A, the coupling unit 200 is configured to receive a flow limiting piece and/or a functional module, here a light module 300, between the opposite sidewalls 201, 202 of the coupling unit 200. The light module 300 may be shaped as illustrated in Figure 6D and as was described above. Further, as illustrated in Figure 6E, the upper wall 205 is removably arranged and can be removed by unscrewing a number of screws or bolts 275, see Figure 6B. Optionally, the inner walls of the coupling unit 200 may be provided with mounting elements and/or electrical connection elements in the same way as described above for the mounting profile 100. However, typically, the functional module 300 may be simply connected using cables which extend through a hole 276 in the upper wall 205 of the housing, see Figure 6B.

As shown in Figures 6A-6C, the connection walls 203, 204 may be partly open. However, it is possible to close the connection walls 203, 204 with a cover, e.g. when performing the test flow measurements. Alternatively, when adjacent mounting profiles 100 are available as in Figure 4A, seal elements (not shown) may be arranged in the end parts of the mounting profiles to close the connecting walls 203, 204.

The mounting profile 100 may be arranged in a dropped ceiling VP, in a space VR between the dropped ceiling VP and the actual ceiling PL. To that end, a sidewall 201, 202 of the coupling unit 200 may be provided with an L-shaped profile 270. The L-shaped profiles 270 could be fixed to the upper side of the wall forming the dropped ceiling VP, as in Figure 9A. In other embodiments (not illustrated), the L-shaped profiles 270 could be fixed to the lower side of the wall forming the dropped ceiling VP. Such assembly will be able to circulate air to/from a room R below the dropped ceiling VP in an improved manner. The L-shaped profiles 270 may be provided with a slit 271 in order to be able to adjust the height of the L-shaped profiles relative to the coupling unit 200. The L-shaped profiles 270 may be fixed by a screw 272 extending through the slit 271 in a nut 273 arranged in a receiving space 274 provided to a sidewall 201, 202 of the coupling unit 200.

As shown in Figures 6C and 6D, the coupling unit 200 is configured for receiving one or more functional modules, such as a lighting module 300 or a driver for a lighting module, in the inner space 210. The side walls 201, 202 and/or the upper wall 205 of the coupling unit 200 may be provided on an inner side bounding the inner space 210 with one or more engaging means and/or connecting means, for mounting a functional module 300 and/or a fastening piece 301 in the inner space 210 and/or for connecting it to an electrical control and/or power circuit. The coupling unit 200 may be dimensioned such that a portion of a functional module 300 can be received between the opposite sidewalls 201, 202. Electrical power and/or control cables may be provided in the inner space 210. In the illustrated embodiment the fastening piece is a rail 301 which carries two lighting modules 300. The rail may be fixed in the inner space using screws 302 which are fixed in inwardly protruding elements (not visible) connected to a wall delimiting the inner space 210.

Figure 7 illustrates another embodiment of an assembly 2 for forming a fixture system, such as a light fixture system. The assembly comprises a mounting profile 100, e.g. a mounting profile as described above, and a coupling unit 200. The mounting profile 100 has side walls 101, 102 and an upper wall 103 which bound a mounting space 110 and has an open lower end through which one or more functional modules, such as one or more light modules, can be mounted in the mounting space. The coupling unit 200 has a connection wall 400 dimensioned to be connected to an open outer end Illa of the mounting profile 100. The connection wall 400 is provided with a ventilation connection opening 260 delimited by a tube-like ventilation connection part 260a that is configured to be connected to a ventilation pipe VB. The open lower end of the mounting profile 100 forms a ventilation mouth 150 to receive and/or discharge an airflow LS. Preferably, the tube-like ventilation connection part 260a extends substantially in a length direction of the mounting profile 100.

Preferably, the tube-like ventilation connection part 260a has a cross section which transitions from a substantially rectangular shape at an end that is coupled to the mounting profile 100 to a round shape at a connection end (if the ventilation pipe VB has a round shape), wherein preferably the surface area of the cross section increases in the direction of the connection end. If the ventilation pipe has a non-round shape the connection end may also have a non-round shape.

The mounting profile 100 may be provided an inner side thereof with mounting and/or electrical connection elements in the same way as has been described above. The functional modules may be fixed in any suitable manner in the mounting profile 100, e.g. using a click-fit mechanism or using screws or bolts.

Optionally, a flow limiting piece 900 may be provided in the mounting profile 100 at a distance of the coupling unit 200. A testing unit may then be used between the outer end and the flow limiting piece 900 in order to reduce or avoid leakage flows during the measurements. Preferably, the flow limiting piece 900 is removably arranged in the mounting profile, so that it can be removed after the testing.

The coupling unit 200 may be connected to the outer end 11 la of the mounting profile in any suitable manner, e.g. using screws or glue. Also, the coupling unit 200 may be provided with protruding parts which fit in associated slots of the mounting profile 100. For example, the coupling unit may be configured to be coupled with the mounting profile 100 through a click- fit mechanism.

Figures 8A and 9A illustrate another embodiment of an assembly 2a for forming a fixture system, such as a light fixture system. The assembly comprises a housing in the form of a mounting profile 100a and a coupling unit 200.

The mounting profile 100a has at least two sidewalls 101, 102 and an upper wall 103 which bound a mounting space 110 and has an open lower end through which one or more functional modules, such as one or more light modules, can be mounted in the mounting space; wherein a sidewall 102 of the at least two sidewalls 101, 102 or the upper wall 103 is provided with an opening I lla. The coupling unit 200 has a ventilation mouth 250 which is configured to be connected to the opening I l la, wherein the coupling unit 200 is provided with a ventilation connection opening 260 configured to be connected to a ventilation pipe, such that an airflow LS can be received and/or discharged via the open lower end, the ventilation mouth 250 and the ventilation connection opening 250. It is noted that the opening Il la could also be provided in the other sidewall 101 or in the upper wall 103.

The mounting profile may have any of the properties described above for the other embodiments.

The coupling unit 200 has a connection wall 400 in which the ventilation mouth 250 is provided. The dimensions of the connection wall 400 are adapted to the dimensions of the opening Illa in the sidewall 102 of the mounting profile 100a, such that the connection wall 400 completely covers the opening I lla. The ventilation connection opening 260 is bounded by a tubular part 260a, preferably a tubular part 260a with a round cross section. In the schematic drawing of Figure 8A the transition between the rectangular ventilation mouth 250 and the round ventilation connection opening is discontinuous, but the skilled person understands that this transition could also be more gradual as in the embodiment of Figure 7. Optionally, a seal may be provided between the connection wall 400 and the side wall 101.

The connection wall 400 is provided with one or more holes 280 to receive a connection means, such as a screw or bolt, and wherein the mounting profile 100a is configured accordingly, for example with receiving openings 181 for the connection means, to couple the connection wall 400 to the sidewall 102 of the mounting profile 100a. Alternatively, other connection means such as a welding seam may be used.

Optionally, the mounting space 110 may provided with a mounting means 151 and/or an electrical connection means for coupling a lighting module 300 (see Figure 9A), for example as described above in connection with Figure 4B.

The ventilation connection opening 260 and the ventilation pipe VB (see Figure 9B) to be connected therewith may have various shapes and dimensions as described above for other embodiments, and the connection may take place in any of the above described manners.

By having a ventilation mouth 250 connected to an opening I l la in a sidewall 101, 102 or upper wall 103 of the mounting profile 100, the air flow will pass via the functional modules mounted in the mounting space 110, which has the advantage that the functional modules may be cooled by the air flow.

The mounting profile 100 may be arranged in a dropped ceiling VP as illustrated in Figure 9 A, in a space VR between the dropped ceiling VP and the actual ceiling PL. To that end, a sidewall 101 of the mounting profile may be provided with an L-shaped profile 109, in a similar way as described above in connection with the L-shaped profiles 270 used to arranged the coupling module 200 of Figure 6E. In other embodiments (not illustrated), the L-shaped profile 109 could be fixed below the dropped ceiling VP. The assembly with the built-in mounting profile 100a may be finished by arranging a finishing layer AM over the inwardly extending edges 106 of the mounting profile 100a, so as to obtain a trimless result. In other embodiments (not illustrated), the upper wall 103 of the mounting profile may be fixed to a ceiling using a connection means, e.g. a plurality of bolts or screws. Such assembly 2a will be able to circulate air to/from a room R below the dropped ceiling VP in an improved manner.

Figures 8B and 9B illustrate yet another embodiment of an assembly 3 for forming a fixture system, such as a light fixture system. The assembly 3 comprises a housing in the form of a mounting casing 100a and a coupling unit 200. The embodiment is similar to the embodiment of Figures 8 A and 9 A and the same reference numerals have been used to refer to the same or similar parts. Reference is made to the description above.

Here the mounting casing 100a is a mounting piece configured to be arranged in an opening of a wall, preferably in an opening of a dropped ceiling VP, in a space VR between a dropped ceiling VP and the actual ceiling PL, as illustrated in Figure 9B. To that end, the mounting piece 100a is provided with a circumferential flange 160 configured to be mounted flush with the wall VP. Preferably, the mounting flange 160 is formed in one piece with the mounting piece 100a. Alternatively, L-shaped profiles may be used as previously described. The assembly with the built-in mounting piece 100a may be finished by arranging a finishing layer AM over the flange 160 of the mounting piece 100a, so as to obtain a trimless result. Such assembly 3 will be able to circulate air to/from a room R below the dropped ceiling VP in an improved manner.

The mounting piece 100a has four sidewalls 101, 102, 101a, 102a and an upper wall 103 which bound a mounting space 110 and has an open lower end through which one or more functional modules, such as one or more light modules 300 (see Figure 9B), can be mounted in the mounting space 110. A sidewall 101 of the four sidewalls 101, 102, 101a, 102a or the upper wall 103 is provided with an opening Il la. The coupling unit 200 has a ventilation mouth 250 which is configured to be connected to the opening Il la, wherein the coupling unit 200 is provided with a ventilation connection opening 260 configured to be connected to a ventilation pipe, such that an airflow LS can be received and/or discharged via the open lower end, the ventilation mouth 250 and the ventilation connection opening 250. It is noted that the opening I lla could also be provided in another sidewall 102, 101a, 102a or in the upper wall 103.

The coupling unit 200 has a connection wall 400 in which the ventilation mouth 250 is provided. The dimensions of the connection wall 400 are adapted to the dimensions of the opening Illa in the sidewall 102 of the mounting profile 100a, such that the connection wall 400 completely covers the opening I lla. The ventilation connection opening 260 is bounded by a tubular part 260a, preferably a tubular part 260a with a round cross section. In the schematic drawing of Figure 9A the transition between the round ventilation mouth 250 and the round ventilation connection opening is more or less gradual. Optionally, a seal may be provided between the connection wall 400 and the sidewall 101. The connection wall 400 is provided with one or more holes 280 to receive a connection means 401, such as a screw or bolt, and wherein the mounting profile 100a is configured accordingly, for example with receiving openings 181 for the connection means, to couple the connection wall 400 to the sidewall 102 of the mounting profile 100a. Alternatively, other connection means such as a welding seam may be used.

The skilled person will appreciate that many variants and modifications can be envisaged within the scope of the invention, which is defined solely by the following claims. The claims are provided with reference numerals referring to elements of the figures.

Claims

CLAIMS Assembly (1) for forming a fixture system, such as a light fixture system, wherein the assembly comprises:

- a mounting profile (100) with side walls (101, 102) and an upper wall (103) which bound a mounting space (110) and with an open lower end through which one or more functional modules, such as one or more light modules, can be mounted in the mounting space; and

- a coupling unit (200) with two opposite side walls (201, 202) which are provided to lie substantially in line with the side walls of the mounting profile, wherein the coupling unit is configured to be connected to an end part (111) of the mounting profile; and wherein the coupling unit is provided at a lower end with a ventilation mouth (250) between the two opposite side walls in order to receive and/or discharge an airflow (LS) via this ventilation mouth, and is further provided with a ventilation connection opening (260) configured to be connected to a ventilation channel (VB). Assembly according to claim 1, wherein the coupling unit has two connecting walls (203, 204) which are oriented substantially perpendicular to a length direction of the mounting profile and which connect the opposite side walls to each other. Assembly according to claim 1 or 2, wherein the coupling unit further has an upper wall (205) which connects the opposite side walls (201, 202) to each other. Assembly according to claim 2 and 3, wherein the two opposite side walls, the connecting walls and the upper wall bound an inner space (210) which is situated between the ventilation connection opening (260) and ventilation mouth (250). Assembly according to any one of the previous claims, wherein the ventilation connection opening (260) is provided in a first side wall (201) of the two opposite side walls. Assembly according to any one of the claims 1-4, wherein the ventilation connection opening (260) is bounded by a tubular part (260a). Assembly according to claims 5 and 6, wherein the tubular part (260a) has an axis lying substantially perpendicularly of the first side wall (201) of the coupling unit, typically perpendicularly of the two opposite sidewalls.

8. Assembly according to claim 3 and any one of the claims 5-7, wherein the first sidewall (201) has a height which is larger than a height of the second sidewall (202) of the two opposite sidewalls of the coupling unit.

9. Assembly according to any one of the foregoing claims, wherein the coupling unit is provided with a connecting means (280) which extends along at least one of the two opposite side walls (201, 202) and is configured to be coupled to the end part (111) of the mounting profile (100).

10. Assembly according to the foregoing claims, wherein the connecting means comprises a separate connecting piece (280), such as a plate, wherein the mounting profile (100) and the coupling unit (200) are configured to be coupled using the connecting piece.

11. Assembly according to the previous claim, wherein at least one of the two opposite sidewalls of the coupling unit is provided with a slot (282) for receiving a portion of the connecting piece and wherein one of the two sidewalls of the mounting profile is provided with a slot (104) for receiving a portion of the connecting piece.

12. Assembly according to claim 9, wherein the connecting means is fixed to the coupling unit and protrudes in the extension of at least one of the two opposite sidewalls of the coupling unit.

13. Assembly according to any one of the foregoing claims, wherein the mounting profile is an elongated profile, preferably a profile extending over a distance of at least 20 cm, preferably at least 30 cm, more preferably an extruded profile.

14. Assembly according to any one of the foregoing claims, wherein the coupling unit has a length between 10 cm and 60 cm, as seen in a length direction of the mounting profile.

15. Assembly according to any one of the foregoing claims, wherein the side walls (101, 102) and/or the upper wall (103) of the mounting profile are provided on an inner side bounding the mounting space (110) with one or more engaging means and/or connecting means, such as electrical connection means, for mounting a functional module (300) and/or a fastening piece (301) in the mounting space (110) of the mounting profile (100).

16. Assembly according to any one of the foregoing claims and claim 2, wherein at least one of the and preferably two of the two connecting walls (203, 204) of the coupling unit (200) are separating walls which are intended to separate air in the inner space (210) of the coupling unit from the air in the mounting space (110) of the mounting profile.

17. Assembly according to any one of the foregoing claims, wherein the coupling unit is configured to receive a flow limiting piece and/or a functional module such as a light module (300), between the opposite sidewalls.

18. Assembly (2) for forming a fixture system, such as a light fixture system, wherein the assembly comprises:

- a coupling unit (200) with a connection wall (400) dimensioned to be connected to an open outer end of a mounting profile, wherein the connection wall is provided with a ventilation connection opening (260) delimited by a tube-like ventilation connection part (260a) that is configured to be connected to a ventilation channel (VB); wherein the open lower end of the mounting profile forms a ventilation mouth (150) to receive and/or discharge an airflow (LS).

19. Assembly according to the previous claim, wherein the tube-like ventilation connection part (260a) extends substantially in a length direction of the mounting profile.

20. Assembly according to claim 18 or 19, wherein the tube-like ventilation connection part has a cross section which transitions from a substantially rectangular shape at an end that is coupled to the mounting profile to a round shape at a connection end, wherein preferably the surface area of the cross section increases in the direction of the connection end.

21. Assembly (2a, 3) for forming a fixture system, such as a light fixture system, wherein the assembly comprises:

- a housing, such as a mounting profile (100) or mounting casing (100a), with at least two sidewalls (101, 102) and an upper wall (103) which bound a mounting space (110) and with an open lower end through which one or more functional modules, such as one or more light modules, can be mounted in the mounting space; wherein a first sidewall of the at least two sidewalls or the upper wall is provided with an opening (11 la); and

- a coupling unit (200) with a ventilation mouth (250) which is configured to be connected to the opening (I lla), wherein the coupling unit is provided with a ventilation connection opening (260) configured to be connected to a ventilation channel (VB); such that an airflow (LS) can be received and/or discharged via the open lower end, the ventilation mouth and the ventilation connection opening. 21 The assembly of the previous claim, wherein the coupling unit has a connection wall (400) in which the ventilation mouth is provided, wherein the dimensions of the connection wall are adapted to the dimensions of the opening (Il la) in the housing, such that the connection wall completely covers the opening. Assembly according to claim 21 or 22, wherein the ventilation connection opening (260) is bounded by a tubular part (260a), preferably a tubular part with a round cross section. Assembly according to claim 22, wherein the connection wall is provided with one or more holes to receive a connection means, such as a screw or bolt, and wherein the housing is configured accordingly, for example with receiving openings for the connection means, to couple the connection wall to the housing. Assembly according to any of the claims 21-24, wherein the mounting space is provided with a mounting means (151) and/or an electrical connection means for coupling a lighting module. Assembly according to any of the claims 21-25, wherein the housing is a mounting piece configured to be arranged in an opening of a wall, preferably in an opening of a ceiling. Assembly according to the previous claim, wherein the mounting piece is provided with a circumferential flange (160) configured to be mounted flush with the wall. Assembly according to any one of the foregoing claims, wherein the coupling unit (200) is configured with control means (262, 263, 264), for example a control valve unit, for adjusting an effective air throughflow space between the ventilation connection opening (260) and the ventilation mouth (150, 250). Assembly according to the foregoing claim, wherein the control means are selected from: a control valve, a supply/discharge valve, a movable blade and an associated ventilation hole of a second blade, for instance a rotatable first disc (261 ) with one or more first ventilation holes (264) which is mounted rotatably around a shaft part (263) and a second disc (262) with one or more second ventilation holes (265) such that by rotating the first disc, the air passage through the first and second disc can be varied.