A luminaire comprising a mounting unit and a lighting module

Abstract

The present invention provides a surface-mounted luminaire (1000) that simplifies the installation process, ensures safe and efficient operation, and offers proper orientation for optimal performance and aesthetics. The luminaire (1000) comprises a mounting unit (2000) and a lighting module (3000), with a connection mechanism that can be fastened and released using a sliding movement in a direction parallel to the mounting surface. The connection mechanism comprises a recessed connector and a protruding connector that can form a mating connection. The mounting unit (2000) has a mounting electrical contact (2600), and the lighting module (3000) has a module electrical contact (3600), which form an electrically conductive connection between the mounting unit (2000) and the lighting module (3000) when the connection mechanism of the luminaire (1000) is in a fastened state. The electrically conductive connection between the mounting unit (2000) and the lighting module (3000) is a sliding electrical contact, and the protruding connector has a connector head (3110) with an outer contour that is rotationally symmetric with respect to a main axis. This allows the lighting module (3000) to rotate around the main axis (3210) while the connection mechanism of the luminaire (1000) is in a fastened state, maintaining the electrically conductive connection between the mounting unit (2000) and the lighting module (3000).

Description

[0001] 2024PF80467

[0002] 1

[0003] A luminaire comprising a mounting unit and a lighting module

[0004] FIELD OF THE INVENTION

[0005] The invention relates to a luminaire comprising a mounting unit and a lighting module, wherein the mounting unit can be mounted to a mounting surface, and wherein the luminaire comprises a connection mechanism for connecting the lighting module to the mounting unit.

[0006] BACKGROUND OF THE INVENTION

[0007] Among the various different types of luminaires are standing luminaires (such as floor luminaires and desk or table luminaires) and surface-mounted luminaires (such as ceiling-mounted luminaires and wall-mounted luminaires.

[0008] Surface-mounted luminaires are commonly used in residential and commercial applications to provide lighting in various settings. These luminaires are designed to be installed on a mounting surface such as a wall or ceiling, and they are typically attached in a specific orientation to ensure proper illumination and / or aesthetic appeal.

[0009] Connecting a surface-mounted luminaire to an electrical connection point can already be a challenge due to the need for wiring and electrical expertise and being able to achieve the correct orientation adds to the challenge.

[0010] This can lead to difficulties in installation and maintenance of surface-mounted luminaires, as well as potential safety hazards if not installed properly.

[0011] KR-101092612 discloses a ceiling luminaire for illuminating an indoor space. The luminaire has a connection fixture that can be installed on the ceiling. The luminaire further has a lighting body with a connector that can be slidingly fastened to the connection fixture. The connection fixture has protruding pins for making an electrically conductive contact to connection terminals of the lighting body.

[0012] SUMMARY OF THE INVENTION

[0013] It is an object of the present invention to provide a surface-mounted luminaire that achieves at least one of the following aims: (i) a simplified installation process, (ii) a safe 2024PF80467

[0014] 2 and efficient operation, and (iii) a proper orientation for optimal performance and / or aesthetics.

[0015] In a first aspect, the invention provides a luminaire comprising a mounting unit and a lighting module, wherein the mounting unit is arranged to be mounted to a mounting surface.

[0016] For connecting the lighting module to the mounting unit, the luminaire comprises a connection mechanism that can be fastened and released by means of oppositely directed sliding movements along a sliding axis parallel to the mounting surface.

[0017] The connection mechanism comprises a mounting connector as part of the mounting unit, and a module connector as part of the lighting module, wherein the mounting connector and the module connector are arranged to form a mating connection, one of the mounting connector and the module connector being a recessed connector and the other being a protruding connector.

[0018] The protruding connector extends along a main axis to a connector head having an outer contour that is rotationally symmetric with respect to the main axis.

[0019] The recessed connector comprises a groove having a receiving section for receiving the connector head, a locking section for locking the connector head in place, and a guiding section for guiding the connector head from the receiving section towards the locking section during the sliding movement.

[0020] The mounting unit has a mounting electrical contact, and the lighting module has a module electrical contact.

[0021] When the connector head is locked in place in the locking section of the recessed connector, the mounting electrical contact and the module electrical contact are in electrically conductive contact with each other to form an electrically conductive connection between the mounting unit and the lighting module.

[0022] The electrically conductive connection between the mounting unit and the lighting module is a sliding electrical contact allowing the lighting module to rotate around the main axis.

[0023] The aforementioned luminaire allows the lighting module to rotate around the main axis while the connection mechanism of the luminaire is in a fastened state, maintaining the electrically conductive connection between the mounting unit and the lighting module.

[0024] The groove of the recessed connector may taper from the receiving section to the locking section. In this way, the groove is wider at the receiving section than at the 2024PF80467

[0025] 3 locking section, which provides the advantage that, when assembling the luminaire, a user can more easily find the entrance of the recessed connector.

[0026] The connector head of the protruding connector may be shaped as a disk, which is a convenient shape for a connector head with a rotationally symmetric outer contour.

[0027] The recessed connector may be the mounting connector that is part of the mounting unit, in which case the protruding connector is the module connector, which may then extend from a back side of the lighting module.

[0028] In the aforementioned configuration, the module electrical contact may comprise a first module electrode and a second module electrode, each being a ring-shaped electrode. The first module electrode and the second module electrode may be provided on opposite surfaces of the connector head. Alternatively, the first module electrode and the second module electrode may be provided spaced apart from each other on a circumferential outer surface of the connector head.

[0029] The groove may have a rim extending from a side surface. Such a configuration has the advantage that the rim may serve to guide the module connector along the mounting connector, and to prevent the module connector from falling out of the mounting connector. In such a configuration, the mounting electrical contact may be exposed in the groove, but covered by the rim, which provides the advantage that the mounting electrical contact cannot be touched by a human, thereby improving the safety of the luminaire, particularly for an end user when connecting the lighting module to the mounting plate.

[0030] The side surface and the rim together define a depth of the groove. The connector head may have a thickness that is substantially equal to the depth of the groove at the locking section. This has the advantage that, when the connection mechanism is in a fastened state, the connector head snugly fits in the groove, thereby improving the reliability of the connection mechanism.

[0031] The recessed connector may comprise a protrusion in the guiding section, wherein the protrusion is arranged to impede the sliding movement. The protrusion may be located in the recessed connector such that when the connector head is locked in place in the locking section, the module connector and the protrusion are separated by a non-zero distance along the sliding axis. A user can then easily get an indication of the release direction. Furthermore, when the protrusion is a cantilevered protrusion, it may be arranged to provide audible feedback to a user to indicate that the connection mechanism is in a fastened state. 2024PF80467

[0032] 4

[0033] The mounting electrical contact may have a mounting earth conductor, in which case the module electrical contact has a module earth conductor. The mounting earth conductor and the module earth conductor can then be provided such that, when the connection mechanism is in a fastened state, they are in electrically conductive contact with each other so that the electrically conductive connection between the mounting unit and the lighting module is a grounded electrical connection, thereby further improving the safety of the luminaire.

[0034] The luminaire may have a security mechanism for preventing an inadvertent release of the connection mechanism. The security mechanism may be provided in the mounting unit, and it may comprise a pin. When the connection mechanism is in a fastened state, the security mechanism can then be in a first state in which the pin partly extends into the mounting connector to prevent the module connector from moving out of the locking section. The security mechanism can be brought into a second state in which the pin is retreated into the mounting unit to clear a passage from the locking section to the receiving section thereof. This further improves the reliability and safety of the connection mechanism of the luminaire.

[0035] The module connector may be a separate component of the lighting module, in which case the lighting module further comprises a module housing, The module connector may then have an upper part and a lower part, wherein the upper part can be connected to the mounting connector by means of the connection mechanism, and wherein the lower part can be connected to the module housing. This offers the possibility to create a platform solution based on a single mounting unit and a single module housing that can be combined with different module connectors so as to create a variety of different luminaries.

[0036] The luminaire may further comprise a cap that can be inserted into the mounting unit so as to close the receiving section of the mounting connector. This has the advantage of an improved appearance of the luminaire once the lighting module is connected to the mounting unit. Furthermore, it also provides the advantage of improved ingress protection, and it further helps to prevent the lighting module from inadvertently detaching from the mounting unit. 2024PF80467

[0037] 5

[0038] BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings in which corresponding reference symbols indicate corresponding parts. The drawings are schematic and not necessarily to scale.

[0040] Figure 1 shows a luminaire having a lighting module that is connected to a mounting unit by means of a connection mechanism.

[0041] Figure 2 shows a luminaire with a mounting unit and a lighting module, wherein the lighting module is disconnected from the mounting unit.

[0042] Figure 3 shows a luminaire with a mounting unit and a lighting module, wherein the lighting module is disconnected from the mounting unit.

[0043] Figure 4 shows a lighting module under (a), and a module connector under (b) and (c).

[0044] Figure 5 shows a perspective view of a mounting unit and a module connector in a disconnected state.

[0045] Figure 6 shows front views of two different mounting units.

[0046] Figure 7 shows a front view of a mounting unit and a module connector in a disconnected state.

[0047] Figure 8 shows a front view of a mounting unit and a module connector in a connected state.

[0048] Figure 9 shows a mounting unit and a module connector in a connected state, in a front view under (a) and in a cross sectional view under (b).

[0049] Figure 10 shows a front view of a mounting unit and a module connector in a connected state.

[0050] Figure 11 shows a back side view of a mounting unit.

[0051] Figure 12 shows the mounting electrode and the module connector.

[0052] Figure 13 shows an alternative configuration of a module connector.

[0053] Figure 14 shows another alternative configuration of a module connector.

[0054] Figure 15 shows a lighting module with a module connector as illustrated in Figure 14.

[0055] Figure 16 shows a mounting unit and a module connector in a disconnected state.

[0056] Figure 17 shows a mounting unit and a cap. 2024PF80467

[0057] 6

[0058] Figure 18 shows a mounting unit and a module connector as a separate component of a lighting module.

[0059] Figure 19 shows a mounting unit with a security mechanism.

[0060] Figure 20 shows a close-up of the mounting unit illustrated in Figure 19.

[0061] Figure 21 shows the mounting unit with a shielding mechanism.

[0062] Figure 22 shows the connector head with first and second module electrodes, and with first and second electrically conductive clamps for establishing electrically conductive contact with the first and second module electrodes, respectively.

[0063] Figure 23 shows the mounting unit with an additional metal cover.

[0064] Figure 24 shows several constructions for optically determining the release direction of the lighting module.

[0065] Figure 25 shows several constructions for optically determining the release direction of the lighting module.

[0066] Figure 26 shows a configuration wherein the rotational freedom of the lighting module has been limited by incorporating a rotation delimiter in the module connector.

[0067] Figure 27 shows the rotation delimiter used in the configuration of Figure 26.

[0068] Figure 28 shows a configuration wherein the rotational freedom of the lighting module has been limited by adding a rotation delimiter to the module back side.

[0069] Figure 29 shows a configuration wherein the rotational freedom of the lighting module has been limited by using a combination of a slot and a protrusion.

[0070] LIST OF REFERENCE NUMERALS

[0071] With regard to reference numerals used, the following numbering is used throughout the drawings.

[0072] 10 First axis

[0073] 20 Second axis

[0074] 30 Third axis

[0075] 1000 Luminaire

[0076] 2000 Mounting unit

[0077] 2100 Mounting connector 2024PF80467

[0078] 7

[0079] 2210 Mounting main axis

[0080] 2221 Mounting front side

[0081] 2300 Groove

[0082] 2310 Receiving section

[0083] 2320 Guiding section

[0084] 2330 Locking section

[0085] 2340 Side surface

[0086] 2350 Rim

[0087] 2400 Screw hole

[0088] 2500 Protrusion

[0089] 2600 Mounting electrical contact

[0090] 2610 First mounting electrode

[0091] 2611 End of the first mounting electrode

[0092] 2612 First electrically conductive clamp

[0093] 2613 First clamp lip

[0094] 2614 First clamp contact

[0095] 2620 Second mounting electrode

[0096] 2621 End of the second mounting electrode

[0097] 2622 Second electrically conductive clamp

[0098] 2623 Second clamp lip

[0099] 2624 Second clamp contact

[0100] 2630 Mounting earth conductor

[0101] 2640 Opening

[0102] 2700 Security mechanism

[0103] 2710 Spring-loaded pin

[0104] 2720 Head

[0105] 2721 First face of the head

[0106] 2722 Second face of the head

[0107] 2723 Third face of the head

[0108] 2724 Internal wall of the mounting unit

[0109] 2730 Ring

[0110] 2740 Spring

[0111] 2810 Metal cover 2024PF80467

[0112] 8

[0113] 2820 Slot

[0114] 2910 Channel

[0115] 2911 Optical component

[0116] 2920 Outer surface area

[0117] 2930 Light guiding element

[0118] 2940 Channel

[0119] 2941 Light redirecting element

[0120] 2950 Internal light source

[0121] 3000 Lighting module

[0122] 3100 Module connector

[0123] 3110 Connector head

[0124] 3111 Leg

[0125] 3112 Lid

[0126] 3120 Central part (of the module connector)

[0127] 3130 Peripheral part (of the module connector)

[0128] 3140 Upper part (of the module connector)

[0129] 3150 Lower part (of the module connector)

[0130] 3160 Extension (of the module connector)

[0131] 3210 Module main axis

[0132] 3221 Module front side

[0133] 3222 Module back side

[0134] 3223 Raised surface structure

[0135] 3224 Compartment

[0136] 3225 Protrusion

[0137] 3230 Sliding axis

[0138] 3300 Module housing

[0139] 3310 Side face

[0140] 3600 Module electrical contact

[0141] 3610 First module electrode

[0142] 3620 Second module electrode

[0143] 3630 Module earth connector

[0144] 3700 Indicator plate 2024PF80467

[0145] 9

[0146] 4000 Cap

[0147] 5100 Protection cover

[0148] 5110 First shield

[0149] 5120 Second shield

[0150] DETAILED DESCRIPTION OF THE EMBODIMENTS

[0151] Figure 1 shows a luminaire 1000 having a mounting unit 2000 and lighting module 3000, the lighting module 3000 being connected to the mounting unit 2000 by means of a connection mechanism that will be described in more detail hereinafter.

[0152] Shown in Figure 1 are three axes: a first axis 10, a second axis 20, and a third axis 30. These axes are mutually perpendicular axes that can be considered the axes of a three-dimensional Cartesian coordinate system.

[0153] The mounting unit 2000 can be mounted to a mounting surface, such as a ceiling, for example by means of screws, or by any other suitable mounting means. The mounting surface coincides with the xy-plane of the three-dimensional Cartesian coordinate system defined by the first axis 10, the second axis 20, and the third axis 30.

[0154] Figures 2 and 3 again show the luminaire 1000 with the mounting unit 2000 and the lighting module 3000, in two different views, both with the lighting module 3000 disconnected from the mounting unit 2000.

[0155] The mounting unit 2000 has a mounting connector 2100, and the lighting module 3000 has a module connector 3100. The mounting connector 2100 and the module connector 3100 are arranged to form a mating connection.

[0156] A mating connection is established when two component parts with mutually complementing shapes are assembled.

[0157] In the luminaire 1000, the mounting connector 2100 is a recessed connector. In other words, the mounting connector 2100 is a receding part of the mounting unit 2000. The module connector 3100 is a protruding connector. In other words, the protruding connector 3100 is a protruding part of the lighting module 3000.

[0158] The recessed connector and the protruding connector are component parts with mutually complementing shapes that can be assembled to form a mating connection. 2024PF80467

[0159] 10

[0160] In the luminaire 1000, the mounting connector 2100 is the recessed connector, and the module connector 3100 is the protruding connector, but this may alternatively also be the other way around (z.e., the mounting connector may be the protruding connector, and the module connector may then be the recessed connector).

[0161] The mounting connector 2100 is provided on a front side 2221 of the mounting unit 2000, and the module connector 3100 is provided on a back side 3230 of a module housing 3300 of the lighting module 3000. Hereinafter, the front side 2221 of the mounting unit 2000 will be referred to as the mounting front side 2221, and the back side 3230 of the lighting module 3000 will be referred to as the module back side 3222.

[0162] In the luminaire 1000, the module connector 3100 is a separate component of the lighting module 3000 that can be releasably fixed or fastened to the module back side 3222. For the purpose of the invention, the module connector 3100 may also be an integrated part of the lighting module 3000. An integrated part is a part that is not intended to be detachable from the whole.

[0163] The mounting connector 2100 is provided on the mounting front side 2221 of the mounting unit 2000. In the configuration of the luminaire 1000, the mounting connector 2100 is the recessed connector. The mounting connector 2100 is recessed relative to the mounting front side 2221, along a main axis 2210 that is oriented perpendicular to the mounting front side 2221. The main axis 2210 is parallel to the first axis 10, and it will hereinafter be referred to as the mounting main axis 2210.

[0164] The module connector 3100 is provided on the module back side 3222 of the lighting module 3000. In the configuration of the luminaire 1000, the module connector 3100 is the protruding connector.

[0165] The module connector 3100 extends from the module back side 3222 along a main axis 3210 that is oriented perpendicular to the module back side 3222. The main axis 3210 is parallel to the first axis 10, and it will hereinafter be referred to as the module main axis 3210.

[0166] Under (a), Figure 4 shows the lighting module 3000 in a side view. The module connector 3100 extends from the module back side 3222 along the module main axis 3210.

[0167] Inside the module housing 3300 of the lighting module 3000 is a light engine for providing a light output, such as a white light output or a light output of any other color. 2024PF80467

[0168] 11

[0169] For this purpose, the light engine comprises one or more light emitting elements, such as light emitting diodes or any other suitable light emitting element.

[0170] Opposite to the module back side 3222 is the module front side 3221 of the lighting module 3000. The module front side 3221 comprises a light exit window for allowing the light emitted by the light engine to leave the lighting module 3000. The light exit window may be transparent or diffusely transmissive.

[0171] The luminaire 1000 has a power supply for providing power to the light engine of the lighting module 3000. The power supply may be provided in the lighting module 3000, but it may alternatively also be provided in the mounting unit 2000.

[0172] The luminaire 1000 may also have a controller for controlling the light engine, so as to change one or more properties of the light output, such as color, correlated color temperature, intensity, and angular distribution. The controller may be provided in the lighting module 3000, but it may alternatively also be provided in the mounting unit 2000.

[0173] For example, the mounting unit 2000 may be dimensioned such as to have sufficient space to accommodate a driver. This allows for a low voltage DC connection between the mounting unit 2000 and the lighting module 3000.

[0174] Under (b) and (c), Figure 4 shows the module connector 3100 in a side view and a perspective view, respectively.

[0175] The module connector 3100 extends along the main module axis 3210 to a connector head 3110 having an outer contour that is rotationally symmetric with respect to the main module axis 3210. In fact, the module connector 3100 has a shape resembling that of two concentrically stacked disks of different diameters, wherein the larger disk represents the connector head 3110.

[0176] The connector head 3110 is that part of the module connector 3100 that is arranged to make contact with the mounting connector 2100, and the external (or outer) surface of that part is the outer contour of the connector head 3110.

[0177] As indicated under (b) and (c), the module connector 3100 illustrated in Figure 4 has a central part 3120 and a peripheral part 3130, arranged concentrically relative to the module main axis 3210.

[0178] The central part 3120 has an interior space, which is used, for example, for accommodating the wiring of the module electrical contact 3600. The peripheral part 3130 is for providing sufficient mechanical strength to the module connector 3100, and for exposing 2024PF80467

[0179] 12 the module electrical contact 3600. The module electrical contact 3600 will be further described below.

[0180] Figure 5 shows the mounting unit 2000 and the module connector 3100. For the sake of clarity, only the module connector 3100 is shown, and not the whole lighting module 3000.

[0181] As said, the module connector 3100 is a component of the lighting module 3000 that can be releasably fixed or fastened to the module back side 3222, for example by means of screws, or by any other suitable fastening mechanism, although for the purpose of the invention, the module connector 3100 may also be an integrated part of the lighting module 3000.

[0182] The mounting unit 2000 can be mounted to a mounting surface, such as a ceiling. For this purpose the mounting unit 2000 has several screw holes 2400. Alternatively, the mounting unit 2000 may have any other suitable means for mounting it to a surface.

[0183] The mounting connector 2100 has a groove 2300 that is open at an end located at an edge of the mounting unit 2000 and closed at an opposite end located at a center of the mounting unit 2000.

[0184] The open end of the groove 2300 is part of a receiving section 2310 for receiving the module connector 3100 (z.e., the protruding connector). In other words, the module connector 3100 can enter the mounting connector 2100 via the receiving section 2310 of the groove 2300.

[0185] After entering the mounting connector 2100, the module connector 3100 can slide along the groove 2300 in a direction parallel to the sliding axis 3230, being a direction parallel to the surface on which the mounting unit 2000 can be mounted (or, in other words, a direction parallel to the third axis 30 in the xy-plane of the three-dimensional Cartesian coordinate system defined by the first axis 10, the second axis 20, and the third axis 30).

[0186] During the sliding movement, the module connector 3100 moves from the receiving section 2310 of the groove 2300, via a guiding section 2320 of the groove 2300, to a locking section 2330 of the groove 2300. In other words, the guiding section 2320 of the recessed connector (in this case, the mounting connector 2100) is arranged to guide the protruding connector (in this case, the module connector 3100) from the receiving section 2310 to the locking section 2330 of the groove 2300.

[0187] Furthermore, the mounting front side 2221 and the module back side 3222 can act as two slider running surfaces during the sliding movement, for which purpose the 2024PF80467

[0188] 13 mounting front side 2221 and the module back side 3222 preferably have relatively large flat contact surfaces.

[0189] Figure 5 also shows that the groove 2300 of the mounting connector 2100 has a rim 2350 extending from a side surface 2340 of the groove 2300 and along the whole circumference of the groove 2300.

[0190] When connecting the lighting module 3000 to the mounting unit 2000, part of the connector head 3110 slides behind the rim 2350. The rim 2350 thereby serves to guide the module connector 3100 along the mounting connector 2100, and to prevent the module connector 3100 from falling out of the mounting connector 2100.

[0191] The mounting connector 2100 and the module connector 3100 are part of a connection mechanism for connecting the lighting module 3000 to the mounting unit 2000. This connection mechanism can be fastened and released by means of a sliding movement in a direction parallel to the mounting surface.

[0192] The fastening of the connection mechanism is done by means of a sliding movement in a direction from the receiving section 2310 to the locking section 2330, parallel to the sliding axis 3230 (hereinafter also referred to as the “fastening direction”), and the release of the connection mechanism is done by a sliding movement in an opposite direction, i.e., a direction from the locking section 2330 to the receiving section 2310, parallel to the sliding axis 3230 (hereinafter also referred to as the “release direction”). In other words, the connection mechanism can be fastened and released by means of oppositely directed sliding movements along the sliding axis 3230 that is oriented parallel to the mounting surface.

[0193] In Figure 5 it is shown that the mounting connector 2100 comprises a protrusion 2500 that is provided in the guiding section 2320.

[0194] The protrusion 2500 is a raised portion that is arranged to impede a sliding movement in the release direction. Only when applying a sufficiently large force can the module connector 3100 pass the protrusion 2500 in the release direction, thereby allowing the module connector 3100 to be removed from the mounting connector 2100 so that the connection mechanism is released and the lighting module 3000 is separated from the mounting unit 2000.

[0195] The protrusion 2500 ensures that, once the connection mechanism is in a fastened state, and the module connector 3100 is kept in place in the locking section 2330, the connection mechanism is less likely to be unintentionally released. 2024PF80467

[0196] 14

[0197] The protrusion 2500 is shaped such as to have a relatively moderate slope at a side facing the receiving section 2310 and a relatively steep slope on an opposite side facing the locking section 2330.

[0198] The protrusion 2500 is also arranged to impede a sliding movement in the fastening direction, but because of its shape less force is required to let the module connector 3100 pass the protrusion 2500 in the fastening direction than to let it pass in the release direction.

[0199] Upon applying a sufficiently large force, the module connector 3100 can pass the protrusion 2500 because at least one of the module connector 3100 and the protrusion 2500 is sufficiently flexible to allow a temporary deformation.

[0200] In the luminaire 1000, the aforementioned flexibility is achieved by designing the protrusion 2500 so that it can bend away from the mounting front side 2221, in a direction parallel to the first axis 10.

[0201] The protrusion 2500 is provided on a rectangular cut-out in the groove 2300, which cut-out functions as a kind of cantilever. In other words, the protrusion 2500 is a cantilevered protrusion 2500.

[0202] In the configuration of Figure 5, the rectangular cut-out extends in a direction parallel to the fastening direction, away from the receiving section 2310 and towards the locking section 2330. In other words, the unsupported end of the rectangular cut-out faces the locking section 2330.

[0203] Under (b), Figure 6 shows an alternative configuration of the cantilevered protrusion 2500, wherein the rectangular cut-out extends in a direction parallel to the release direction, away from the locking section 2330 and towards the receiving section 2310, so that the unsupported end of the rectangular cut-out faces the receiving section 2310.

[0204] The rectangular cur-out may even extend in a direction perpendicular to each of the fastening and release directions.

[0205] The aforementioned alternative configurations of the cantilevered protrusion 2500 offer the advantage that the mounting unit 2000 can be made smaller. This is indicated in Figure 6. As said, under (b) a mounting unit 2000 is shown wherein the cantilevered protrusion 2500 has a rectangular cut-out that extends away from the locking section 2330 so that the unsupported end faces the receiving section 2310. Under (a), Figure 6 shows a mounting unit 2000 wherein the rectangular cut-out extends in the opposite direction, similar 2024PF80467

[0206] 15 to what is shown in the previous figures. The configuration under (b) allows for a smaller version of the mounting unit 2000.

[0207] The protrusion 2500 is just an example of a feature that can be used to impede the sliding movement. Any other suitable example of a similar feature may be used instead. In one such alternative example, the recessed connector has protrusions at opposite locations in the side wall(s) of the groove.

[0208] Figure 7 again shows the mounting unit 2000 with its mounting connector 2100, and the module connector 3100, but now in a front view.

[0209] As can be seen in Figure 7, the groove 2300 tapers from the receiving section 2310 to the locking section 2330. In other words, the groove 2300 is wider at the open end than at the closed end. Such a groove may also be referred to as a V-groove.

[0210] Although not required for the purpose of the invention, the groove 2300 being tapered provides the advantage that, when assembling the luminaire 1000, a user can find the entrance of the recessed connector (in this case, the mounting connector 2100) more easily.

[0211] Figure 8 again shows a front view of the mounting unit 2000 with its mounting connector 2100, and the module connector 3100, but now with the connection mechanism in a fastened state. In other words, the module connector 3100 is now locked in place in the locking section 2330 of the mounting connector 2100.

[0212] The sliding axis 3230 is also indicated in Figure 8, as well as the first axis 10 and the second axis 20, wherein the first axis 10 is perpendicular to the plane of the drawing and is hence indicated with a cross (x).

[0213] The condition of being “locked in place” means that the module connector 3100 only has limited freedom of movement in directions parallel to each of the first axis 10, the second axis 20, and the third axis 30. This is indicated in Figures 8a and 8b.

[0214] Under (a), Figure 9 shows the same view as Figure 8. Now, the rim 2350 is indicated, and the dashed line indicates the side surface 2340 of the groove 2300 from which the rim 2350 extends.

[0215] It can be seen that, in the fastening direction (z.e., along the sliding axis 3230, in a direction from the receiving section 2310 to the locking section 2330) the distance the rim 2350 extends from the side surface 2340 increases. This is also indicated by the up and down arrows, indicating the extension e of the rim 2350 at the open end of the groove 2300 and the extension e2of the rim 2350 at the locking section 2330, wherein e2is larger than e . 2024PF80467

[0216] 16

[0217] Under (b), Figure 9 shows a cross sectional view in a plane parallel to the sliding axis 3230 and perpendicular to the second axis 20. In this view it is indicated that the groove 2300 has a depth, being the distance between the rim 2350 and the bottom of the groove 2300. In other words, the side surface 2340 of the groove 2300 and the rim 2350 of the groove 2300 together define a depth of the groove 2300.

[0218] It can be seen that, in the fastening direction (z.e., along the sliding axis 3230, in a direction from the receiving section 2310 to the locking section 2330) the depth of the groove 2300 decreases. This is also indicated by the up and down arrows, indicating the depth d-L of the groove 2300 at the open end of the groove 2300 and the depth d2of the groove 2300 at the locking section 2330, wherein d2is smaller than dx.

[0219] The connector head 3110 of the module connector 3100 has a thickness that is substantially equal to the depth d2of the groove 2300 at the locking section 2330, so that when the connection mechanism in a fastened state, the connector head 3110 snugly fits in the groove 2300.

[0220] For the luminaire 1000, when the connection mechanism is in a fastened state, the lighting module 3000 is so tightly fixed in the mounting unit 2000 that it cannot move in directions parallel to the first axis 10 and the second axis 20.

[0221] Movement in a direction parallel to the first axis 10 and away from the mounting unit 2000 is not possible because the module connector 3100 is held back by the rim 2350 that extends from a side surface of the groove 2300 along its whole circumference.

[0222] Movement in directions parallel to the second axis 20 is not possible because in these directions the module connector 3100 is clamped in the mounting connector 2100. At opposite sides of the mounting connector 2100, an outer surface of the module connector 3100 is in contact with the side wall of the groove 2300.

[0223] This is indicated in Figure 9, showing the same view as under (a) in Figure 9.

[0224] Lines A- A’ coincide with an edge of the rim 2350, and these lines touch an outer surface of the module connector 3100 at positions and p2, being located on opposite sides of the mounting connector 3100.

[0225] However, the module connector 3100 has some room to move in a direction parallel to the sliding axis 3230. Double lines B-B’ are drawn parallel to the second axis 20 and perpendicular to the sliding axis 3230. 2024PF80467

[0226] 17

[0227] The double line B-B’ on the left of the second axis 20 in Figure 9 has one line touching an edge of the rim 2350 and the other touching an outer surface of the module connector 3100.

[0228] The double line B-B’ on the right of the second axis 20 in Figure 9 has one line touching an edge of the protrusion 2500 and the other touching an outer surface of the module connector 3100.

[0229] Each double line B-B’ has a spacing indicating that the outer surface of the module connector 3100 is at a non-zero distance from both the rim 2350 of the groove 2300 and the edge of the protrusion 2500. This non-zero distance represents a certain amount of leeway between the mounting connector 2100 and the module connector 3100, providing the module connector 3100, and hence the lighting module 3000, with some room to move in a direction parallel to the sliding axis 3230.

[0230] An advantage of the aforementioned construction is that, when the connection mechanism of the luminaire 1000 is in a fastened state, a user can easily get an indication of the release direction, as this would be the direction in which the lighting module 3000 still has some room to move.

[0231] An additional advantage of the aforementioned construction is that the protrusion 2500, being provided on a rectangular cut-out in the groove 2300, which cut-out functions as a kind of cantilever, may be arranged to make a clicking sound when the module connector 3100 passes the protrusion 2500. Such a clicking sound provides an audible feedback to a user to indicate that the connection mechanism is in a fastened state.

[0232] When the protruding connector is locked in place in the locking section of the recessed connector, an electrically conductive connection between the mounting unit 2000 and the lighting module 3000 is established.

[0233] The luminaire 1000 may be configured such that the light engine of the lighting module 3000 automatically switches on to provide a visual indication when the connection mechanism is in a fastened state, and an electrically conductive connection between the mounting unit 2000 and the lighting module 3000 has been established.

[0234] The electrically conductive connection is formed between a mounting electrical contact that is provided in the mounting unit 2000 and a module electrical contact that is provided in the lighting module 3000. When the protruding connector (here, the module connector 3100) is locked in place in the locking section of the recessed connector (here, the mounting connector 2100), the mounting electrical contact and the module 2024PF80467

[0235] 18 electrical contact are in electrically conductive contact with each other to form an electrically conductive connection between the mounting unit 2000 and the lighting module 3000.

[0236] Figure 11 shows a back side view of the mounting unit 2000. The interior of the mounting unit 2000 is made visible, to show the mounting electrical contact 2600. The mounting electrical contact 2600 has a first mounting electrode 2610 and a second mounting electrode 2620.

[0237] Each of the first mounting electrode 2610 and the second mounting electrode 2620 extends through an opening 2640 in the mounting unit 2000 into the mounting connector 2100 located on the other side of the mounting unit 2000.

[0238] Under (a), Figure 12 shows the first mounting electrode 2610 and the second mounting electrode 2620 of the mounting electrical contact 2600. Each of the first mounting electrode 2610 and the second mounting electrode 2620 terminates in a T-shaped end, labelled 2611 and 2621, respectively.

[0239] The ends 2611 and 2621 of the first mounting electrode 2610 and the second mounting electrode 2620, respectively, are covered by the rim 2350 that extends from the side surface 2340 of the groove 2300 along its whole circumference (see Figure 5).

[0240] The distance the rim 2350 extends from the side surface 2340 of the groove 2300 may be constant, but it may also vary along the circumference of the groove 2300. For example, the distance the rim 2350 extends from the side surface 2340 of the groove 2300 may increase in a direction towards the locking section 2330.

[0241] Such a construction with a rim 2350 may not be necessary for the purpose of the invention, but it provides the advantage that the mounting electrical contact 2600 cannot be touched by a user, which improves the safety of the luminaire 1000. For this purpose, the rim 2350 preferably extends from the side surface 2340 of the groove 2300 over a distance of at least 4 millimeters at the location of the ends 2611 and 2621 of the first mounting electrode 2610 and the second mounting electrode 2620, respectively.

[0242] Also shown under (a) in Figure 12 is a part of the module connector 3100. The module connector 3100 has a first module electrode 3610. Via the T-shaped end 2611, the first mounting electrode 2610 touches the first module electrode 3610.

[0243] The first mounting electrode 2610 touching the first module electrode 3610 is also shown in the cross sectional view under (b) in Figure 12. In this view it is further indicated that the first module electrode 3610 is provided on one side of the connector head 3110, and that a second module electrode 3620 is provided on an opposite side of the 2024PF80467

[0244] 19 connector head 3110. Via the T-shaped end 2620b, the second mounting electrode 2620 touches the second module electrode 3620.

[0245] The first module electrode 3610 and the second module electrode 3620 are parts of a module electrical contact 3600. When the connection mechanism of the luminaire 1000 is in a fastened state, and the protruding connector (here, the module connector 3100) is locked in place in the locking section of the recessed connector (here, the mounting connector 111), the mounting electrical contact 2600 and the module electrical contact 3600 are in electrically conductive contact with each other to form an electrically conductive connection between the mounting unit 2000 and the lighting module 3000.

[0246] Each of the first module electrode 3610 and the second module electrode 3620 is a ring-shaped electrode. In other words, each of the first module electrode 3610 and the second module electrode 3620 is a slip ring.

[0247] The T-shaped end 2611 establishes a resilient pressure contact of the first mounting electrode 2610 to the first module electrode 3610. Similarly, the T-shaped end 2621 establishes a resilient pressure contact of the second mounting electrode 2620 to the second module electrode 3620.

[0248] The construction with the first module electrode 3610 and the second module electrode 3620 each having a T-shaped end is just an example of a mounting electrical contact that can be used to establish a sliding electrical contact with the module electrical contact. Any suitable alternative example may be used instead.

[0249] The construction with the first module electrode 3610 and the second module electrode 3620 being ring-shaped electrodes on opposite sides of the connector head 3110 is just an example of a module electrical contact that can be used to establish a sliding electrical contact with the mounting electrical contact. Any suitable alternative example may be used instead.

[0250] A fist alternative example is shown in Figure 13. Here, the first module electrode 3610 and the second module electrode 3620 are ring-shaped electrodes that are provided, spaced apart from each other, on a circumferential outer surface of the connector head 3110.

[0251] A second alternative example is shown in Figure 14. Here, the first module electrode 3610 and the second module electrode 3610 are similar arc-shaped electrodes that are provided on the same side of the module connector 3100. The arc-shaped electrodes are 2024PF80467

[0252] 20 separated from each other by spaces S, and they are provided mirrored on either side of line C-C’.

[0253] The electrically conductive connection between the mounting unit 2000 and the lighting module 3000 as described above allows the transmission of power from a stationary structure (here, the mounting unit 2000) to a rotating structure (here, the lighting module 3000). In other words, the electrically conductive connection between the mounting unit 1000 and the lighting module 3000 is a sliding electrical contact allowing the lighting module 3000 to rotate around the module main axis 3210.

[0254] The ability of the lighting module 3000 to rotate around the module main axis 3210 is enabled by the module connector 3100 having a connector head 3110 of which the outer contour is rotationally symmetric with respect to the module main axis 3210. The symmetry of the internal structure of the connector head 3110 is irrelevant, as long as it has a rotationally symmetric outer contour.

[0255] Having such a rotary electrical interface allows the lighting module 3000 to be reoriented while the connection mechanism of the luminaire 1000 is in a fastened state, maintaining the electrically conductive connection between the mounting unit 2000 and the lighting module 3000.

[0256] This is particularly advantageous when the lighting module has a polygonal shape, such as a square or rectangular shape. Such shapes have straight side faces that are preferably aligned with constructional structures of the space wherein the luminaire 1000 is mounted, such as the walls of a room.

[0257] Also, when the lighting module 3000 is arranged to emit a light output having an angular distribution that is asymmetrical relative to the module main axis 3210, it is advantageous to be able to reorient the lighting module 3000 while the connection mechanism of the luminaire 1000 is in a fastened state, so as to direct the light output in a preferred direction.

[0258] The configurations of Figures 10 and 11 represent sliding electrical contacts allowing the lighting module 3000 to make a full 360 degree rotation around the module main axis 3210.

[0259] The configuration of Figure 14 also represents a sliding electrical contact allowing the lighting module 3000 to rotate around the module main axis 3210, but now there is an angular interval wherein the mounting electrical contact 2600 and the module electrical contact 3600 do not make electrical contact. This angular interval corresponds to the situation 2024PF80467

[0260] 21 wherein the first mounting electrode 2610 and the second mounting electrode 2620 terminate in the spaces S separating the first module electrode 3610 and the second module electrode 3610. In other words, the configuration of Figure 14 does not allow the lighting module 3000 to make a full 360 degree rotation around the module main axis 3210. However, an advantage of the configuration of Figure 14 is that it may be easier to manufacture, as the first module electrode 3610 and the second module electrode 3610 are both provided on the same side of the module connector 3100, where a sufficiently large surface area is available.

[0261] Figure 15 shows a lighting module 3000, but now with a square shape having straight side faces 3310. When such a lighting module 3000 is used in the luminaire 1000, the straight side faces 3310 are preferably aligned with constructional structures of the space wherein the luminaire 1000 is mounted, such as the walls of a room. Because the luminaire 100 has an electrically conductive connection between the mounting unit 2000 and the lighting module 3000 in the form of a sliding electrical contact, the lighting module 3000 can rotate around the main module axis 3210. This enables the aforementioned alignment of the lighting module 3000.

[0262] The lighting module 3000 shown in Figure 15 has a module connector 3100 with a construction as shown in Figure 14. In other words, the first module electrode 3610 and the second module electrode 3610 are similar arc-shaped electrodes that are provided on the same side of the module connector 3100, wherein the arc-shaped electrodes are separated from each other by spaces S and provided mirrored on either side of line C-C’ . The module electrical contact 3600 is oriented such that the line C-C’ encloses an angle a of 30 degrees with each of two opposite side faces 3310.

[0263] When the luminaire 1000 is used to provide illumination in a room, the mounting unit 2000 will typically be mounted to a ceiling of the room such that the mounting connector 2100 extends parallel to a wall of the room. When the luminaire 1000 has the lighting module 3000 of Figure 14, the electrical contact between the mounting electrode 2600 and the module electrode 3600 will only be disconnected when the lighting module 3000 is oriented such that two opposite side faces 3310 are at an angle of 30 degrees to a wall of the room, which is likely not a preferred orientation for the lighting module 3000. Preferred orientations of the lighting module will be those wherein the side faces 3310 are parallel and / or perpendicular to the wall(s) of the room, or at 45 degrees to the wall(s) of the room. For such preferred orientations, the electrical contact between the mounting electrode 2600 and the module electrode 3600 will not be disconnected. 2024PF80467

[0264] 22

[0265] The lighting module 3000 of Figure 15 has a square shape, but the aforementioned advantage holds for all rectangular shapes, and even for all polygonal shapes having two opposite side faces that are parallel to each other. Furthermore, in the lighting module 3000 of Figure 14, the angle a is 30 degrees, but the aforementioned advantage can be achieved for angles a in a range of 20 to 40 degrees, such as in a range of 25 to 35 degrees.

[0266] The lighting module 3000 shown in Figure 15 may alternatively have a module connector 3100 with a construction as shown in any one of Figures 10 and 11, in which case the lighting module 3000 can make a full 360-degree rotation around the module main axis 3210 without the mounting electrical contact 2600 and the module electrical contact 3600 losing contact with each other.

[0267] Under (a) and (b), Figure 16 shows the mounting unit 2000 and the module connector 3100 in perspective views from the back and front, respectively. Now, the mounting electrical contact 2600 has a mounting earth conductor 2630, and the module electrical contact 3600 has a module earth conductor 3630. The mounting earth conductor 2630 is exposed in the groove 2300 of the mounting connector 2100 and on the mounting main axis 2210. The module earth conductor 2630 is exposed on an outer surface of the module connector 3100 and on the module main axis 3210.

[0268] When the connection mechanism is in a fastened state, the electrically conductive connection between the mounting unit 2000 and the lighting module 3000 is a grounded electrical connection, which improves the safety of the luminaire 1000.

[0269] In the configuration shown in Figure 16, the mounting earth conductor 2630 and the module earth conductor 3630 are provided such that, when the connection mechanism is in a fastened state, the mounting earth conductor 2630 and the module earth conductor 3630 are in electrically conductive contact with each other so that the electrically conductive connection between the mounting unit 2000 and the lighting module 3000 is a grounded electrical connection, which improves the safety of the luminaire 1000.

[0270] Furthermore, in the configuration shown in Figure 16, the mounting earth conductor 2630 and the module earth conductor 3630 are provided such that, when the connection mechanism is in a fastened state, and the lighting module 3000 is rotated around the module main axis 3210, the electrically conductive contact between them is maintained, irrespective of the rotation angle. 2024PF80467

[0271] 23

[0272] In the configuration shown in Figure 16, the mounting earth conductor 2630 and the module earth conductor 3630 are provided such that, when sliding the module connector 3100 into the mounting connector 2100 in the fastening direction, they contact each other before the mounting electrodes 2610 and 2620 contact the module electrodes 3610 and 3620, respectively. Consequently, when sliding the module connector 3100 out of the mounting connector 2100 in the release direction, the contact between the mounting electrodes 2610 and 2620 and the module electrodes 3610 and 3620, respectively, is broken before the contact between the mounting earth conductor 2630 and the module earth conductor 3630 is broken. This even further improves the safety of the luminaire 1000.

[0273] Figure 17 shows the mounting connector 2000 in perspective views from the back (under (a)), and from the front (under (b)), respectively. Also shown is a cap 4000 that can be inserted into the mounting unit 2000 so as to close the receiving section 2310 of the mounting connector 2100.

[0274] The cap 4000 serves to improve the appearance of the luminaire 1000 once the lighting module 3000 is connected to the mounting unit 2000. Furthermore, it also serves as an ingress protection, and it further helps to prevent the lighting module 3000 from inadvertently detaching from the mounting unit 2000.

[0275] The cap 4000 may be arranged such that when it is inserted into the mounting unit 2000, and thereby closes the receiving section 2310 of the mounting connector 2100, it simultaneously secures the protrusion 2500 and prevents it from deforming. This further improves the reliability of the connection mechanism of the luminaire 1000.

[0276] For example, the protrusion 2500 may have a raised portion and the cap 4000 may have a slot. The raised portion and the slot can be designed such that when the cap 4000 is fitted to the mounting unit 2000, the raised portion snaps into the slot and thereby secures the protrusion 2500 relative to the cap 4000.

[0277] As already mentioned before, the module connector 3100 can be an integrated part of the lighting module 3000, or a separate component thereof.

[0278] Figure 18 shows a further example of a module connector 3100 as a separate component of the lighting module 3000, in perspective views from the back (under (a)), and from the front (under (b)), respectively.

[0279] The module connector 3100 has an upper part 3140 and a lower part 3150, separated from each other by an extension 3160. The upper part 3140 can be connected to the mounting connector 2100 of the mounting unit 2000 by means of the connection mechanism 2024PF80467

[0280] 24 as described hereinbefore. The module housing 3300 of the lighting module 3000 can then be connected to the lower part 3150 of the module connector 3100.

[0281] The extension 3160 is straight and rigid. Alternatively, the upper part 3140 and the lower part 3150 may also be interconnected by means of one or more flexible extensions, such as wires, for example steel wires. Also, the upper part 3140 and the lower part 3150 may be interconnected such that they are tilted with respect to each other.

[0282] In the example shown in Figure 18, the module housing 3300 of the lighting module 3000 can be connected to the lower part 3150 of the module connector 3100 by means of a connection mechanism that is similar to the connection mechanism described hereinbefore for connecting the lighting module 3000 to the mounting unit 2000. Alternatively, any suitable mechanism for connecting the module housing 3300 of the lighting module 3000 to the lower part 3150 of the module connector 3100 may be used.

[0283] The module connector 3100 illustrated in Figure 18 is an example of a module connector that is a separate component of the lighting module, which further comprises a module housing, wherein the module connector has an upper part and a lower part, wherein the upper part can be connected to the mounting connector by means of the connection mechanism, and wherein the lower part can be connected to the module housing.

[0284] Such a separate module connector offers the possibility to create a platform solution based on a single mounting unit and a single module housing that can be combined with different module connectors so as to create a variety of different luminaries.

[0285] To further improve the reliability of the connection mechanism, additional measures may be taken to lock the module connector 3100 in place and to prevent an inadvertent release of the connection mechanism.

[0286] One such additional measure is illustrated in Figure 19, which, under (a), (b), and (c), shows three consecutive stages of the module connector 3100 being connected to the mounting unit 2000.

[0287] The mounting unit 2000 has a security mechanism 2700 that comprises a spring-loaded pin 2710 with a head 2720 and a ring 2730 at opposite ends thereof. The security mechanism 2700 is arranged in the mounting unit 2000 such that it can be in a first state and a second state.

[0288] When the module connector 3100 is not inserted in the mounting connector 2100, or not sufficiently far inserted therein (see under (a) of Figure 19), the security mechanism 2700 is in the first state. In the first state, the head 2720 extends into the 2024PF80467

[0289] 25 mounting connector 2100 and it blocks a passage towards the locking section 2330 of the mounting connector 2100.

[0290] When the module connector 3100 slides through the mounting connector 2100 in the fastening direction, the former pushes against the head 2720 of the security mechanism 2700, thereby forcing it to move out of the way, and tensioning the spring 2740 to produce a spring force in an opposite direction (see under (b) of Figure 19). This brings the security mechanism 2700 in the second state, wherein the head 2720 has retreated into the mounting unit 2000 and no longer blocks a passage towards the locking section 2330 of the mounting connector 2100.

[0291] When the connection mechanism of the luminaire 1000 is in a fastened state, and the module connector 3100 is locked in place in the mounting connector 2100, the security mechanism 2700 is brought back into the first state. The head 2720 extends into the mounting connector 2100 again, thereby preventing the module connector 3100 to move out of the locking section 2330 of the mounting connector 2100.

[0292] When the security mechanism 2700 is brought back into the first state, a clicking sound is produced when the spring 2740 pushes the head 2720 back into the mounting connector 2100, thereby providing audible feedback to a user to indicate that the connection mechanism is in a fastened state.

[0293] The security mechanism 2700 is constructed such that when the module connector 3100 pushes against the head 2720 in the fastening direction, the latter can move in a direction out of the mounting connector 2100, but when the module connector 3100 pushes against the head 2720 in the release direction, the latter is obstructed by the mounting unit 2000.

[0294] The above construction is further illustrated in Figure 20, which shows a closeup of the security mechanism 2700. Here it can be seen that the head 2720 is arranged to move along line D-D’. The head 2720 widens in a direction along line D-D’ and away from the ring 2730. The head 2720 has a first face 2721 facing towards the receiving section 2310 of the mounting connector 2100, a second face 2722 facing towards the locking section 2330 of the mounting connector 2100, and a third face 2723 located opposite from the second face 2723 in abutment with an internal wall 2724 of the mounting unit 2000.

[0295] Applying a force on the first face 2721 in the fastening direction results in the head 2720 moving along line D-D’ and out of the module connector 2100. Applying a force 2024PF80467

[0296] 26 on the second face 2722 in the release direction does not result in any such movement of the head 2720 as this is blocked by the internal wall 2724 of the mounting unit 2000.

[0297] Furthermore, because the head 2720 widens in a direction along line D-D’ and away from the ring 2730, the security mechanism 2700 is self-locking. When the module connector 2100 moves in the release direction, and the connector head 3110 pushes against the second face 2722, the security mechanism 2700 can only unlock when the head 2720 moves along line D-D’ and out of the module connector 2100. However, such movement is not possible because the first face 2721 of the head 2720 would then have to move through a passage that is too small.

[0298] When the connection mechanism of the luminaire 1000 is in a fastened state, and the module connector 3100 is locked in place in the mounting connector 2100, the security mechanism 2700 can be brought from the first state to the second state by pulling on the ring 2730. Hereby, the head 2720 moves along line D-D’ and retreats into the mounting unit, clearing a passage from the locking section 2330 of the mounting connector 2100 to the receiving section 2310 thereof. To make it easier to pull the ring 2730, a cable can be attached to it, such as a seismic bracing cable.

[0299] The security mechanism 2700 illustrated in Figures 17 and 18 is suitable for use in the luminaire 1000. It serves to prevent an inadvertent release of the connection mechanism. It is an example of a security mechanism that comprises a pin, wherein, when the connection mechanism is in a fastened state, the security mechanism is in a first state in which the pin partly extends into the mounting connector to prevent the module connector from moving out of the locking section, and wherein the security mechanism can be brought into a second state in which the pin is retreated into the mounting unit to clear a passage from the locking section to the receiving section thereof.

[0300] Alternative security mechanisms suitable for use in the luminaire 1000, and for preventing an inadvertent release of the connection mechanism, may be implemented instead.

[0301] As already mentioned with reference to Figure 11, the mounting unit 2000 has a mounting electrical contact 2600, which in turn has a first mounting electrode 2610 and a second mounting electrode 2620, each of which extends through an opening 2640 in the mounting unit 2000 into the mounting connector 2100 located on the front side of the mounting unit 2000 (i.e., the side of the mounting unit 2000 that faces the lighting module 3000). Hereby, each of the first mounting electrode 2610 and the second mounting electrode 2024PF80467

[0302] 27

[0303] 2620 is exposed on the front side of the mounting unit 2000, and available for establishing the sliding electrical contact between the mounting unit 2000 and the lighting module 3000.

[0304] The mounting electrical contact 2600 may be covered by the rim 2350, which provides the advantage that the mounting electrical contact 2600 cannot be touched by a human, thereby improving the safety of the luminaire 1000.

[0305] To further improve the safety of the luminaire 1000, a shielding mechanism may be incorporated in the mounting unit 2000. Such a shielding mechanism has two shields, one for protecting the first mounting electrode 2610 and another for protecting the second mounting electrode 2620.

[0306] Such a shielding mechanism is illustrated in Figure 21, which shows the mounting unit 2000 of the luminaire 1000, in a perspective view diagonally from above, showing the back side of the mounting unit 2000.

[0307] The mechanism makes use of a protection cover 5100 that has a first shield 5110 and a second shield 5120, each of which is provided with an activation flap that can be pushed upwards (i.e., in a direction from the front side towards the back side of the mounting unit 2000) upon inserting the module connector 3100.

[0308] By pushing the activation flaps upwards, the first and second shields 5110 and 5120, respectively, move upwards as well, thereby exposing the mounting electrical contact 2600.

[0309] Under (a), the module connector 3100 is not inserted, and the first and second shields 5110 and 5120, respectively, are both in a position wherein the mounting electrical contact is shielded. In particular, the first mounting electrode 2610 is shielded by the first shield 5110 and the second mounting electrode 2620 is shielded by the second shield 5120.

[0310] Under (b), the module connector 3100 is inserted, and now the first and second shields 5110 and 5120, respectively, are in a position wherein the mounting electrical contact is exposed.

[0311] The protection cover 5100 is a Y-shaped component. The first and second shields 5110 and 5120, respectively, and their associated activation flaps, are provided on the two opposite arms of the Y-shaped component. Only the ends of the Y-shaped component are fixed to the back side of the mounting unit 2000. This construction ensures that, when only one activation flap is pushed upwards, the mechanism twists so that the other activation flap is pushed down. To expose the first mounting electrode 2610 and the second mounting 2024PF80467

[0312] 28 electrode 2620 of the mounting electrical contact 2600, both activation flaps must be pushed upwards at the same time, which happens when the module connector 3100 is inserted.

[0313] The shielding mechanism shown in Figure 21 is an example of a mechanism suitable for use in the luminaire 1000 of the present invention, for improving the safety of the luminaire 1000, especially the safety against inadvertent touching of the mounting electrical contact 2600. It is possible to implement other examples of suitable shielding mechanism instead.

[0314] As already mentioned with reference to Figure 12, the first module electrode 3610 may be provided on one side of the connector head 3110, while the second module electrode 3620 is provided on an opposite side of the connector head 3110.

[0315] Figure 22 shows the connector head 3110 in a perspective view diagonally from below (under (a)), in a direct view from the back (under (b)), and in a direct view from the front (under (c)).

[0316] The first module electrode 3610 and the second module electrode 3620 are provided on opposite sides of the connector head 3110.

[0317] Also shown in Figure 22 are a first electrically conductive clamp 2612 and a second electrically conductive clamp 2622. The first electrically conductive clamp 2612 is provided at the end 2611 of the first mounting electrode 2610, while the second electrically conductive clamp 2622 is provided at the end 2612 of the second mounting electrode 2621. For the sake of clarity, the ends 2611 and 2612 of the first and second mounting electrodes 2610 and 2620, respectively, are not shown in Figure 22.

[0318] The connector head 3110 has a groove that is provided at the outside of the peripheral part 3130 and that runs all the way around. This groove will hereinafter be referred to as the clamping groove 3131.

[0319] The first electrically conductive clamp 2612 has two first clamp lips (or fingers) 2613, which are each extending into the clamping groove 3131. Further, the first electrically conductive clamp 2612 has a first clamp contact 2614 that is in electrically conductive contact with the first module electrode 3610. The second electrically conductive clamp 2622 has a similar construction, with two second clamp lips (or fingers) 2623 and a second clamp contact 2624, the latter being in electrically conductive contact with the second module electrode 3620.

[0320] For each of the first and second electrically conductive clamps 2612 and 2622, respectively, the construction described above creates a compression force (for example of 2024PF80467

[0321] 29 about IO N) between the clamp lips (or fingers) and the clamp contact. Each of the first and second electrically conductive clamps 2612 and 2622, respectively, can slide around the connector head 3110, while maintaining an electrically conductive connection between the mounting unit 2000 and the lighting module 3000.

[0322] The components of the luminaire 1000 may be made from plastic. To ensure sufficient reliability, which for plastics is typically a concern, the components may be designed with low stress levels, to hold over relatively long periods of time. Metal is considered more stable over time, especially when used in relatively harsh environments.

[0323] For the luminaire 1000, the parts of the mounting unit 2000 that have so far been described in the text and illustrated in the figures (except for the mounting electrical contact 2600 and its various constituents), may be made from plastic, in which case the mounting unit 2000 may be provided with a metal cover. In this configuration, the interior of the mounting unit 2000 is made from an electrically insulating material and the exterior is made from a material with load transferring capabilities, while maintaining electrical safety.

[0324] This configuration is illustrated in Figure 23, which shows the mounting unit 2000 of the luminaire 1000 in an exploded perspective view diagonally from above, now with an additional metal cover 2810 that can be provided at the mounting front side 2221.

[0325] As mentioned before, the connection mechanism can be fastened and released by means of oppositely directed sliding movements along the sliding axis 3230 that is oriented parallel to the mounting surface.

[0326] Hereinabove, a construction has already been described which enables a user to easily get an indication of the release direction, as this would be the direction in which the lighting module 3000 still has some room to move when the connection mechanism of the luminaire 1000 is still in a fastened state.

[0327] Such a construction can be replaced with, or extended by, a construction for optically determining the release direction of the lighting module 3000. Several examples of such a construction are illustrated in Figure 24.

[0328] In a first example of such a construction, shown under (a) of Figure 24, the mounting unit 2000 is provided with a channel (or passage) 2910 through which (for example by means of a torch light) a beam of light can be directed, and subsequently projected onto the mounting surface, the beam of light indicating the release direction. The beam of light may come from an external light source, such a torch light, as schematically indicated in the 2024PF80467

[0329] 30 upper right corner. Only when the external light source is aligned with the channel 2910, light can pass through to the other end.

[0330] At one or both ends of the channel 2910, an optical component 2911 may be provided for collimating and / or redirecting the beam of light. To ensure an efficient transfer of the light beam, the interior surface of the channel 2910 may be made light reflective, and / or a light guiding element, such as a light guiding rod, may be provided in the channel 2910.

[0331] In a second example of such a construction, shown under (b) of Figure 24, the mounting unit 2000 has a light reflective outer surface area 2920 to indicate the release direction. Such a light reflective outer surface area 2920 may be only provided on one side of the mounting unit 2000, for example in the form of a light reflective patch. By aligning the direction of reflection with the direction of light emitted by the external light source, the release direction can be found. Additionally, or alternatively, the light reflective outer surface area 2920 may be arranged to project an arrow when illuminated from the right direction. Instead of being light reflective, the outer surface area may also be luminescent. Such a luminescent outer surface area may be activated by an external light source, or by an internal light source of the luminaire 1000 itself.

[0332] In a third example of such a construction, shown under (c) of Figure 24, a light guiding element 2930 is provided in the mounting unit 2000, wherein the light guiding element 2930 has an exposed outer surface that surrounds the mounting unit 2000, allowing light to be coupled into the light guiding element 2930, plus a light outcoupling feature 2931 for coupling out light predominantly in one direction, irrespective of where light is coupled into the light guiding element 2930.

[0333] A fourth example of such a construction is shown in Figure 25. In this example, the lighting module 3000 has a indicator plate 3700 with an arrow-shaped cutout. When light shines through the indicator plate 3700, an arrow is projected onto the module front side 3221, pointing into the release direction.

[0334] The light can be provided by an external light source, as shown under (a) of Figure 25, in which the mounting unit 2000 has a channel (or passage) 2940 for guiding the light to the plate 3700, for example by using a light redirecting element 2941.

[0335] Alternatively, as shown under (b) of Figure 25, the light can be provided by an internal light source 2950. 2024PF80467

[0336] 31

[0337] The view under (c) of Figure 25 is a direct view towards the module front side 3221, indicating the projection of an arrow thereon.

[0338] In a fifth example of such a construction, the mounting unit 2000 has an indicator light for indicating the release direction, which indicator light may be powered by an internal energy storage device, such as a battery, and / or wherein optics may be added to collimate the light emitted by the indicator light, or to project an arrow on the mounting surface.

[0339] Of course, one could simply mark the position of the groove 2300 on the outside of the mounting unit 2000, but each of the above examples of a construction for optically determining the release direction of the lighting module 3000 has the advantage that, even when the lighting module 3000 extends relatively far from the mounting unit 2000, so that any markings on the outside of the mounting unit 2000 would no longer be easily visible, a user can still get a clear indication of the release direction.

[0340] The electrically conductive connection between the mounting unit 2000 and the lighting module 3000 is a sliding electrical contact that allows the lighting module 3000 to rotate around the module main axis 3210.

[0341] Some of the configurations described hereinbefore allow the lighting module 3000 to make a full 360-degree rotation around the module main axis 3210 (such as the configurations of Figures 10 and 11), while others only allow a more limited rotation (such as the configuration of Figure 14).

[0342] It may be desirable from the perspective of the user to have less than a full 360-degree rotation, but still sufficient to allow alignment of the lighting module 3000 with constructional structures of the space wherein the luminaire 1000 is mounted (such as the walls of a room), but with a construction that enables the user to experience a stop function indicating the limits of the rotational freedom.

[0343] Such a configuration is illustrated in Figure 26. Here, the module connector 3100 has a rotation delimiter in the form of two legs 3111 extending from the connector head 3110. Under (a), Figure 26 shows the legs 3111 in a straight position, while under (b) they are in a rotated position. In the latter, one of the legs 3111 of the rotation delimiter abuts a side surface of the groove 2300, thereby preventing any further rotation of the lighting module 3000.

[0344] The rotation delimiter will limit the rotational freedom of the electrically conductive connection mechanism between the mounting unit 2000 and the lighting module 2024PF80467

[0345] 32

[0346] 3000, such as between 5 and 60 degrees, for example 10 degrees, or 30 degrees, or 45 degrees. Such a limited rotational freedom is in many cases still sufficient to make final adjustments on the orientation of the lighting module 3000. An advantage of this construction is that it enables a smaller electrical contact design, so that less material is needed for the electrical contact.

[0347] Under (a), Figure 27 shows the modified module connector 3100 of Figure 26, but now also showing first and second electrically conductive clamps 2612 and 2622, respectively, plus a first module electrode 3610. This figure clearly demonstrates that a construction that only allows a limited rotational freedom enables a smaller electrical contact design.

[0348] Besides being provided with a rotation delimiter to limit rotational freedom, the module connector 3100 can be further modified by adding a lid 3112, which may be fixed to the ends of the legs 3111 of the rotation delimiter. The lid 3112 may serve as an ingress protector for the luminaire 1000. Such a further modification is shown under (b) of Figure 27. After the lighting module 3000 has been coupled to the mounting unit 2000, the lid 3112 closes the otherwise open end of the groove 2300.

[0349] In the configurations of Figures 26 and 27, the module connector 3100 has been modified to include a rotation delimiter. It is noted that the mounting unit 2000 still has the same design as in other embodiments described herein, so that it could still hold a module connector 3100 that allows a full 360-degree rotation of the lighting module 3000.

[0350] In the configuration of Figures 26 and 27, the rotational freedom of the electrically conductive connection between the mounting unit 2000 and the lighting module 3000 is limited by incorporating a rotation delimiter in the module connector 3100.

[0351] Alternatively, any other part of the lighting module 3000 may be provided with a rotation delimiter.

[0352] For example, a rotation delimiter in the form of a raised surface structure 3223 may be provided to the module back side 3222. Such an alternative configuration is shown in Figure 28.

[0353] The rotation delimiter of Figure 28 (in the form of the raised surface structure 3223) has a similar functionality as the rotation delimiter of Figures 26 and 27 (in the form of the legs 3111), in that, when rotating the lighting module 3000, there comes a point where the rotation delimiter abuts a side surface of the groove 2300 to prevent any further rotation of the lighting module 3000. 2024PF80467

[0354] 33

[0355] In the configuration of Figure 28, a further modification has been added to the lighting module 3000 in the form of a compartment 3224, which may be used for accommodating a driver of the luminaire 1000. So, the luminaire 1000 may have a space for accommodating a driver, and this space may either be in the mounting unit 2000 or in the lighting module 3000, wherein in the latter case it may take the form of a compartment 3224 as shown in Figure 28.

[0356] Figure 29 shows a further embodiment of the luminaire 1000. Under (a), Figure 29 shows the mounting unit 2000, in a perspective view (left) and a back view (right). Under (b), Figure 29 shows the lighting module 3000, in a perspective view (left) and a back view (right). Under (c), Figure 29 shows the luminaire 1000, in a perspective view (left) and a back view (right).

[0357] Similar to what was shown in Figure 28, on the module back side 3222, the lighting module 3000 has a compartment 3224, which can for example accommodate a driver of the luminaire 1000. Attached to the compartment 3224 is a lid 3112, which may serve as an ingress protector for the luminaire 1000, similar to what was shown in Figure 27. The compartment 3224 and the lid 3112 may together form an integral part of the lighting module 3000. In other words, a single part may serve as both the compartment 3224 and the lid 3112.

[0358] The lighting module 3000 further has a protrusion 3225, which is provided on, and extends from, the compartment 3224. The protrusion 3225 is designed to fit in a slot 2820, which is provided on the mounting unit 2000. Upon assembly of the luminaire 1000, by connecting the lighting module 3000 to the mounting unit 2000, the protrusion 3225 clicks into the slot 2820.

[0359] The slot 2820 leaves some room for the protrusion 3225 to move, thereby allowing the lighting module 3000 to rotate relative to the mounting unit. At the same time, the slot 2820 serves as a rotation delimiter as its ends form a blockage to prevent further rotation of the protrusion 3225. This is schematically illustrated with the double-sided arrow in the back view of the luminaire 1000 shown on the right under (c) of Figure 29, the dashed lines marking an angular range over which the lighting module 3000 can be rotated relative to the mounting unit 2000. Depending on the length or extension of the slot 2820, and on the length or extension of the protrusion 3225, the angular range may be between 5 and 60 degrees, for example 10 degrees, or 30 degrees, or 45 degrees.

[0360] The above detailed description explains the construction of a luminaire 1000 having a mounting unit 2000 and a lighting module 3000. The mounting unit 2000 can be 2024PF80467

[0361] 34 mounted to a mounting surface, and the lighting module 3000 can be mechanically and electrically connected to the mounting unit 2000 by means of a connection mechanism.

[0362] The connection mechanism comprises a mounting connector as part of the mounting unit, and a module connector as part of the lighting module. One of the mounting connector and the module connector is a recessed connector and the other is a protruding connector. The recessed connector and the protruding connector have mutually complementing shapes that can be assembled to form a mating connection.

[0363] In the luminaire 1000, the mounting connector 2100 is the recessed connector, and the module connector 3100 is the protruding connector. However, this may alternatively also be the other way around, so that the mounting connector is the protruding connector, and the module connector is the recessed connector.

[0364] When in a fastened state, the connection mechanism still allows the lighting module 3000 to rotate around a main module axis 3210 that is oriented perpendicular to the mounting surface.

[0365] The described construction has beneficial effects not only for a luminaire, but also for other electrical devices that can be mounted to a mounting surface by means of a mounting unit. Examples of such other electrical devices include smoke detectors, information displays, and control panels.

[0366] In general terms, the invention therefore relates to a device comprising a mounting unit and an electronic module, wherein the mounting unit is arranged to be mounted to a mounting surface.

[0367] For connecting the electronic module to the mounting unit, the device comprises a connection mechanism that can be fastened and released by means of oppositely directed sliding movements along a sliding axis parallel to the mounting surface.

[0368] The connection mechanism comprises a mounting connector as part of the mounting unit, and a module connector as part of the electronic module.

[0369] The mounting connector and the module connector are arranged to form a mating connection, one of the mounting connector and the module connector being a protruding connector and the other being a recessed connector.

[0370] The protruding connector extends along a main axis to a connector head having an outer contour that is rotationally symmetric with respect to the main axis.

[0371] The recessed connector comprises a groove having a receiving section for receiving the protruding connector, a locking section for locking the protruding connector in 2024PF80467

[0372] 35 place, and a guiding section for guiding the protruding connector from the receiving section towards the locking section during the sliding movement.

[0373] The mounting unit has a mounting electrical contact, and the electronic module has a module electrical contact.

[0374] When the protruding connector is locked in place in the locking section of the recessed connector, the mounting electrical contact and the module electrical contact are in electrically conductive contact with each other to form an electrically conductive connection between the mounting unit and the electronic module.

[0375] The electrically conductive connection between the mounting unit and the electronic module is a sliding electrical contact allowing the electronic module to rotate around the main axis.

[0376] It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design many alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. Use of the verb “to comprise” and its conjugations does not exclude the presence of elements or steps other than those stated in a claim. The article “a” or “an” preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the device claim enumerating several means, several of these means may be embodied by one and the same item of hardware. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

[0377] The various aspects discussed in this patent can be combined in order to provide additional advantages. Further, the person skilled in the art will understand that embodiments can be combined, and that also more than two embodiments can be combined.

Claims

2024PF8046736CLAIMS:

1. A luminaire (1000) comprising a mounting unit (2000) and a lighting module(3000), the mounting unit (2000) being arranged to be mounted to a mounting surface, wherein, for connecting the lighting module (3000) to the mounting unit (2000), the luminaire (1000) comprises a connection mechanism that can be fastened and released by means of oppositely directed sliding movements along a sliding axis (3230) parallel to the mounting surface, wherein the connection mechanism comprises a mounting connector (2100) as part of the mounting unit (2000), and a module connector (3100) as part of the lighting module (3000), the mounting connector (2100) and the module connector (3100) being arranged to form a mating connection, one of the mounting connector (2100) and the module connector (3100) being a recessed connector and the other being a protruding connector, wherein the protruding connector extends along a main axis (3210) to a connector head (3110) having an outer contour that is rotationally symmetric with respect to the main axis (3210), wherein the recessed connector comprises a groove (2300) having a receiving section (2310) for receiving the connector head (3110), a locking section (2330) for locking the connector head (3110) in place, and a guiding section (2320) for guiding the connector head (3110) from the receiving section (2310) towards the locking section (2330) during the sliding movement, wherein the mounting unit (2000) has a mounting electrical contact (2600), and the lighting module (3000) has a module electrical contact (3600), wherein, when the connector head (3110) is locked in place in the locking section (2330) of the recessed connector, the mounting electrical contact (2600) and the module electrical contact (3600) are in electrically conductive contact with each other to form an electrically conductive connection between the mounting unit (2000) and the lighting module (3000), wherein the electrically conductive connection between the mounting unit (2000) and the lighting module (3000) is a sliding electrical contact allowing the lighting module (3000) to rotate around the main axis (3210), and2024PF8046737 wherein the mounting electrical contact (2600) is exposed in the groove (2300), the groove (2300) having a side surface (2340) and a rim (2350) extending from the side surface (2340), and the rim (2350) covering the mounting electrical contact (2600).

2. The luminaire (1000) according to claim 1, wherein the groove (2300) tapers from the receiving section (2310) to the locking section (2330).

3. The luminaire (1000) according to any one of the preceding claims, wherein the connector head (3110) is shaped as a disk.

4. The luminaire (1000) according to any one of the preceding claims, wherein the recessed connector is the mounting connector (2100), and wherein the protruding connector is the module connector (3100), extending from a back side of the lighting module (3000).

5. The luminaire (1000) according to claim 4, wherein the module electrical contact (3600) comprises a first module electrode (3610) and a second module electrode (3620), each being a ring-shaped electrode, and wherein the first module electrode (3610) and the second module electrode (3620) are provided on opposite surfaces of the connector head (3110).

6. The luminaire (1000) according to claim 4, wherein the module electrical contact (3600) comprises a first module electrode (3610) and a second module electrode (3620), each being a ring-shaped electrode, and wherein the first module electrode (3610) and the second module electrode (3620) are provided spaced apart from each other on a circumferential outer surface of the connector head (3110).

7. The luminaire (1000) according to any one of the preceding claims, wherein the side surface (2340) and the rim (2350) together define a depth of the groove (2300), and wherein the connector head (3110) has a thickness that is substantially equal to the depth of the groove (2300) at the locking section (2330).2024PF80467388. The luminaire (1000) according to any one of the preceding claims, wherein the recessed connector comprises a protrusion (2500) in the guiding section (2320), the protrusion (2500) being arranged to impede the sliding movement.

9. The luminaire (1000) according to claim 8, wherein the protrusion (2500) is located in the recessed connector such that when the connector head (3110) is locked in place in the locking section (2330), the module connector (3100) and the protrusion (2500) are separated by a non-zero distance along the sliding axis (3230).

10. The luminaire (1000) according to claim 9, wherein the protrusion (2500) is a cantilevered protrusion.

11. The luminaire (1000) according to any one of the preceding claims, wherein the mounting electrical contact (2600) has a mounting earth conductor (2630), and the module electrical contact (3600) has a module earth conductor (3630), and wherein the mounting earth conductor (2630) and the module earth conductor (3630) are provided such that, when the connection mechanism is in a fastened state, the mounting earth conductor (2630) and the module earth conductor (3630) are in electrically conductive contact with each other so that the electrically conductive connection between the mounting unit (2000) and the lighting module (3000) is a grounded electrical connection.

12. The luminaire (1000) according to any one of the preceding claims, wherein the mounting unit (2000) has a security mechanism (2700) for preventing an inadvertent release of the connection mechanism, wherein the security mechanism (2700) comprises a pin (2710), wherein, when the connection mechanism is in a fastened state, the security mechanism (2700) is in a first state in which the pin (2710) partly extends into the mounting connector (2100) to prevent the module connector (3100) from moving out of the locking section (2330), and wherein the security mechanism (2700) can be brought into a second state in which the pin (2710) is retreated into the mounting unit (2000) to clear a passage from the locking section (2330) to the receiving section (2310).

13. The luminaire (1000) according to any one of the preceding claims, wherein the module connector (3100) is a separate component of the lighting module (3000), wherein2024PF8046739 the lighting module (3000) further comprises a module housing (3300), wherein the module connector (3100) has an upper part (3140) and a lower part (3150), wherein the upper part (3140) can be connected to the mounting connector (2100) by means of the connection mechanism, and wherein the lower part (3150) can be connected to the module housing (3300).

14. The luminaire (1000) according to any one of the preceding claims, wherein the luminaire (1000) further comprises a cap (4000) that can be inserted into the mounting unit (2000) so as to close the receiving section (2310) of the mounting connector (2100).

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