Recessed light fixture with night mode

Abstract

This application relates to a recessed luminaire with a night mode and falls within the technical field of lighting control gear. The recessed luminaire comprises a housing (2), a light source module (3), a reflector (8), a light direction module, and one or more shade rings (7). The light source module (3) has a first light source (301) and a second light source (302) surrounding the first light source (301). The reflector (8) is designed to reflect the light from the first light source (301) and separates the second light source from the first light source. The light direction module has two or more light direction rings (6) fitted onto the reflector (8) to direct the light from the second light source (302) outwards from the recessed luminaire, where the second light source (302) operates in the night mode of the recessed luminaire.(Figure for the abbreviation: Fig.2).

Description

Title of the invention: Recessed luminaire with night mode technical field

[0001] This application relates to the technical field of lighting equipment and in particular a recessed luminaire with night mode. Previous art

[0002] A recessed luminaire, as a lighting fixture, can be integrated into a ceiling with downward light projection. One of its advantages is the ability to preserve the unity and perfection of the overall architectural design without compromising the aesthetics of the ceiling decoration due to the installation of the lighting fixture. The recessed luminaire, integrated into the ceiling and acting as a concealed lighting fixture, occupies no exposed space. It projects all the light downwards, creating a direct light distribution. The light from the recessed luminaire can enhance the soft atmosphere of a space. Recessed luminaires are widely used in various configurations.

[0003] A night light is a lighting device that can illuminate, either automatically or manually, dimly lit environments, offering great convenience for people's nighttime activities. A recessed light fixture integrated into the ceiling cannot be used directly as a night light because of its strong downward beam. Therefore, users often have to install both recessed and night lights to meet different needs, thus occupying more space and resulting in less ease of use.

[0004] In the prior art, a recessed luminaire can be integrated with a night lighting module. This is achieved by placing a night lighting source around the main light source and using a reflector to separate the main light source from the night lighting source. A space is formed between the reflector and the luminaire housing, in which a light guide ring is positioned to direct the light from the night luminaire so that it shines outwards. However, the light-emitting area of ​​the light guide ring is small, so the light cannot fully shine outwards, leading to problems of insufficient luminous flux and poor lighting performance in night mode.If the problems are solved by increasing the brightness of the night light source, another problem arises: the light becomes harsh due to its concentrated projection, failing to meet users' needs and fulfilling the purpose of the night light mode. Description of the invention

[0005] The present application relates to a recessed luminaire with night mode, aimed at solving the problem of insufficient luminous flux encountered when recessed luminaires of the prior art operate in night mode.

[0006] To achieve the above objective, the technical solution adopted by this application is as follows: The recessed luminaire proposed by this application may comprise a housing, a light source module, a reflector, a light director module, and one or more shading rings. The light source module is arranged in the housing and has a first light source and a second light source surrounding the first light source. The reflector is intended to reflect the light from the first light source. One end of the reflector is inside the housing and connected to the light source module. The reflector separates the second light source from the first light source.

[0007] The light direction module comprises two or more light direction rings fitted onto the reflector. The light direction rings are nested one inside the other and are designed to direct the light from the second light source outwards from the recessed luminaire. Every two adjacent light direction rings correspond to a shading ring, and each shading ring is positioned between two corresponding adjacent light direction rings.

[0008] The second light source and the light guide rings are used in the night mode of the recessed luminaire. The light-emitting area of ​​two or more light guide rings is enlarged, compared to that of a single light guide ring in the prior art, so that the light from the second light source can shine fully outwards and the problem of insufficient luminous flux is resolved. Furthermore, the enlarged light-emitting area prevents the light from becoming harsh by avoiding concentrated beams. In addition, the shading rings can prevent the area of ​​excessive brightness due to the overlapping of outwardly shining light from two adjacent light guide rings and ensure that the recessed luminaire has good lighting performance when operating in night mode.

[0009] In one possible embodiment, each light-directing ring comprises a connecting section close to the light source module and a diffusion section away from the light source module, with the diffusion section extending along a first direction away from the light source module and forming a truncated cone structure with a diameter gradually increasing along the first direction.

[0010] In one possible embodiment, the connecting sections of each of two adjacent light-guiding rings are in contact with each other, and a space extending along a radial direction of the frustoconical structure is formed between the diffusion sections of each of two adjacent light-guiding rings, with a shading ring disposed in the space.

[0011] In one possible embodiment, an external peripheral surface of each diffusion section is provided with a plurality of diffusion indentations.

[0012] In one possible embodiment, the recessed luminaire proposed by this application further comprises one or more first sealing rings and a second sealing ring. Each first sealing ring is disposed between two corresponding adjacent light-directing rings. Each pair of adjacent light-directing rings corresponds to one first sealing ring. The number of first sealing rings is one less than the number of light-directing rings. The second sealing ring is disposed between the reflector and a light-directing ring adjacent to the reflector.

[0013] In one possible embodiment, each first sealing ring is disposed in a first mounting groove which is formed on an external peripheral surface of an internal light guide ring and extends along a circumference of the internal light guide ring, where the internal light guide ring is one of each two adjacent light guide rings that is closer to the reflector.

[0014] In one possible embodiment, the second sealing ring is disposed in a second mounting groove which is formed on an external peripheral surface of the reflector and extends along a circumference of the reflector.

[0015] In one possible embodiment, the recessed luminaire proposed by this application further comprises a gasket disposed between the housing and an external light guide ring, where the external light guide ring is the one among the light guide rings that is furthest from the reflector and the gasket is used to seal a space between the housing and the external light guide ring.

[0016] In one possible embodiment, the recessed luminaire proposed by this application further comprises a plate-shaped diffuser mounted in a third mounting groove formed on an internal wall of the reflector.

[0017] In one possible embodiment, one or more of the internal walls of the third mounting groove are coated with sealant. Brief description of the figures

[0018] In order to illustrate more clearly the technical solutions of the embodiments of this application, reference is now made to the accompanying drawings used in the description of the embodiments. It is evident that the drawings used in the following description are only some embodiments of this application, and that those skilled in the art can obtain further drawings from these drawings without exercising any inventive step.

[0019] Fig. 1 is an exploded view of a recessed luminaire with night mode according to embodiments of the present application;

[0020] Fig. 2 is a cross-sectional view of a recessed luminaire with night mode according to embodiments of the present application;

[0021] [Fig.3] is an enlarged view of part A of [Fig.2];

[0022] Figure 4 is a perspective view of a light-directing ring of a recessed luminaire with night mode according to embodiments of the present application;

[0023] Fig. 5 is a perspective view of a reflector of a recessed luminaire with night mode according to embodiments of the present application;

[0024] Figure 6 is a part of Figure 2 intended primarily to show light paths in light guide rings, in which the cut symbols in the light guide rings are omitted for clarity; and

[0025] Fig. 7 is a part of Fig. 2 intended mainly to show light-emitting areas, in which the section symbols in the light-guide rings are omitted for clarity.

[0026] In the drawings:

[0027] 1 joint

[0028] 2 cases

[0029] 3 light source module

[0030] 301 first light source

[0031] 302 second light source

[0032] 4 first sealing ring

[0033] 5 second sealing ring

[0034] 6 light direction ring

[0035] 6a external light guide ring

[0036] 6b internal light guide ring

[0037] 601 connecting section

[0038] 602 broadcast section

[0039] 6021 first mounting groove

[0040] 603 diffusion indentation

[0041] 604 non-smooth part

[0042] 605 limit

[0043] 611, 612, 613 light-emitting zones

[0044] 7 shade ring

[0045] 8 reflector

[0046] 801 second mounting groove

[0047] 9 plate-shaped diffuser Detailed description of the implementation methods

[0048] In order to better understand the technical problems to be solved, the technical solutions, and the advantages of this application, a more detailed description is provided below with reference to the drawings and embodiments. It is understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit this application.

[0049] It is noted that, in this application, the terms "first," "second," and "third" are used only to distinguish different features and not to imply unreasonable limitations, such as stipulating orders. The directions and positions described by terms such as "up" and "down" are based on the orientation of the recessed luminaire shown in the drawings, where the direction of illumination of the recessed luminaire is essentially downward. It is understood that, in addition to the downward direction, the recessed luminaire proposed in this application may illuminate in other directions. In this application, the terms "include," "feature," and "present" should be understood as "feature, but not be limited to."

[0050] With reference to Figs. 1 to 3, in one embodiment, the recessed luminaire with night mode proposed by this application comprises a housing 2, a light source module 3, a reflector 8, a light director module, and at least one shade ring 7. The light source module 3 is disposed in the housing 2 and comprises a first light source 301 and a second light source 302 surrounding the first light source 301, where the first light source 301 is a primary light source and the second light source 302 is an auxiliary light source that can be used in the night mode of the recessed luminaire. A first end of the reflector 8 (the upper end, as shown by way of example in Figs. 2 and 3) is disposed in the housing 2 and connected to the light source module 3. The reflector 8 separates the second light source 302 from the first light source 301.The reflector 8 is used to reflect the light from the first light source 301. The light director module is fitted onto the reflector 8 and includes at least two light director rings 6 (as shown by way of example in Figs. 1 and 2, there are two light director rings 6) to direct the light from the second light source. 302 towards the outside of the recessed luminaire, with the light direction rings 6 nested one inside the other.

[0051] The number of shading rings 7 is one less than the number of light guide rings 6. Every two adjacent light guide rings 6 corresponds to one shading ring 7, and each shading ring 7 is arranged between two corresponding adjacent light guide rings 6. As shown by way of example in Figs. 1 and 2, there are two light guide rings 6 comprising an outer light guide ring 6a and an inner light guide ring 6b, and a shading ring 7 arranged between the light guide rings 6a and 6b.

[0052] In a variant of the embodiment shown in Figs. 1 to 3, the number of light guide rings 6 may be three, with the number of shading rings 7 being consequently two. One shading ring 7 is located between the inner light guide ring 6 and the central light guide ring, and the other shading ring 7 is located between the central light guide ring and the outer light guide ring 6.

[0053] Compared with the prior art, the recessed luminaire with night mode proposed by this embodiment has the following advantages. The recessed luminaire has two or more light-directing rings 6 for the night mode of the recessed luminaire. The light-directing rings 6 can direct the light from the second light source 302 operating in night mode outwards from the recessed luminaire. The light-emitting area of ​​two or more light-directing rings 6 is enlarged, compared to that of a single light-directing ring, so that the light from the second light source 302 can shine fully outwards and the problem of insufficient luminous flux is solved. Furthermore, the enlarged light-emitting area prevents the light from becoming harsh by avoiding concentrated beams of light.In addition, there is a shading ring 7 between each of two adjacent light guide rings 6, which can prevent the area of ​​excessive brightness due to the overlap of outwardly shining light from two adjacent light guide rings 6 and ensure that the recessed luminaire has good lighting performance when operating in night mode.

[0054] By way of example, the light guide rings 6 may be made of plastic, glass, or similar materials, and may be transparent or translucent. By way of example, the light guide rings 6 may direct, in the manner shown in [Fig. 6], the light from the second light source 302 outwards from the recessed luminaire. As shown in [Fig. 6], the upper ends of the light guide rings 6 may be close to the second light source 302, allowing light from the second light source 302 to enter each light-directing ring 6. Each light-directing ring 6 can be configured so that most of the incoming light is totally reflected as it propagates from the light-directing ring 6 (an optically denser medium) to the air (an optically less dense medium), such that, as shown by the dashed lines with arrows in [Fig. 6], the incoming light can propagate into the light-directing rings 6 and shine outwards from the lower ends of the light-directing rings 6, forming the light-emitting areas 611 and 612.

[0055] In addition to the night mode, the recessed luminaire also has a normal mode, in which the first light source 301 operates. The light from the first light source 301 shines outwards from the recessed luminaire after being reflected by the reflector 8.

[0056] In one embodiment, with reference to Figs. 1, 2, 3 and 7, each light-directing ring 6 comprises a linking section 601 close to the light source module 3 and a diffusion section 602 away from the light source module 3, with the diffusion section 602 extending along a first direction DI away from the light source module 3 and forming a frustoconical structure with a diameter gradually increasing along the first direction Dl.

[0057] As shown in Figs. 2 and 7, the connecting section 601 and the diffusing section 602 are distributed from top to bottom. An example of the boundary 605 of the connecting section 601 and the diffusing section 602 is shown in [Fig. 7]. The ends of the connecting sections 601 are located below the second light source 302 to allow light from the second light source 302 to enter the light guide rings 6. Adjacent connecting sections 601 can be linked to each other, and the innermost connecting section 601 can be connected to the reflector 8, thus ensuring the fixed connection of the light guide module.

[0058] As shown in Figs. 2 and 7, the diffusion section 602 extends outwards, forming the aforementioned frustoconical structure with its diameter gradually increasing from top to bottom. Light-emitting areas can be formed, for example, by creating non-smooth parts on the surfaces of the diffusion section 602. In these non-smooth parts, the light is diffused and shines outwards. Examples of methods for forming these non-smooth surfaces include sandblasting and polishing.

[0059] Generally, the surface area of ​​the diffusion section 602 is larger than that of the connecting section 601, so that large light-emitting areas can be formed. The area of ​​a light-emitting area can be adjusted according to the required luminous flux. For example, as shown in [Fig. 7], a non-smooth portion 604 can be formed on the lower surface of the external light-directing ring 6a to create an annular light-emitting area 613.

[0060] In one embodiment, with reference to Figs. 2 and 7, two connecting sections 601 of each of two adjacent light-directing rings 6 are in contact with each other, and a space extending along a radial direction D2 of the frustoconical structure (the diffusion section 602) is formed between two diffusion sections 602 of each of two adjacent light-directing rings 6, with one of at least one shading ring 7 disposed in the space.

[0061] In this embodiment, each of the two adjacent connecting sections 601 is in contact with each other, and there is no gap between them. This prevents light from the second light source 302 from shining outwards through the gap and ensures that the ends of the connecting sections 601 effectively receive light from the second light source 302.

[0062] In this embodiment, the shading rings 7 are arranged in spaces extending along the radial direction D2. This prevents the overlapping of light and the formation of areas of excessive brightness in the radial direction D2, while allowing the light-emitting areas to extend along the radial direction D2 in order to broaden the light-emitting areas. In the present application, the shading rings 7 can also be used to block the line of sight and prevent the second light source 302 from being seen, especially when the light-guiding rings 6 are transparent.

[0063] In one embodiment, with reference to Figs. 1 and 4, an external peripheral surface of the diffusion section 602 is provided with a plurality of diffusion indentations 603. Each diffusion indentation 603 can be provided with one or more non-smooth internal walls in order to form many small light-emitting areas in the diffusion section 602, which can create a beautiful lighting effect.

[0064] By way of example, each diffusion indentation 603 can be circular in shape. The diffusion indentations 603 can be distributed along several circumferential paths on the outer peripheral surface of the diffusion section 602. The diffusion indentations 603 on adjacent circumferential paths can be interlaced.

[0065] In one embodiment, with reference to Figs. 1 and 3, the recessed luminaire proposed by this application further comprises one or more first sealing rings 4 and a second sealing ring 5. Each first sealing ring 4 corresponds to two adjacent light-guiding rings 6 and is positioned between them. The second sealing ring 5 is positioned between the reflector 8 and the innermost light-guiding ring (the inner light-guiding ring 6b) adjacent to the reflector 8.

[0066] Sealing rings 4 and 5 can prevent the ingress of foreign materials, such as dust and moisture, into the recessed luminaire, thus improving its protection against ingress. Each first sealing ring 4 is used to seal a gap between the two corresponding adjacent light guide rings 6. The second sealing ring 5 is used to seal a gap between the reflector 8 and the innermost light guide ring (the inner light guide ring 6b). Sealing rings 4 and 5 can also prevent light from the second light source 302 from shining outwards through the gaps.

[0067] By way of example, the first sealing ring 4 and the second sealing ring 5 can be flexible and made of rubber, silicone or similar materials.

[0068] In one embodiment, with reference to Figs. 1 and 4, each first sealing ring 4 is mounted in a first mounting groove 6021 which is formed on an external peripheral surface of an internal light guide ring 6b and extends along a circumference of the internal light guide ring 6b, where the internal light guide ring 6b is one of each two adjacent light guide rings 6 that is closer to the reflector 8.

[0069] The first mounting groove 6021 is intended for mounting the first sealing ring 4. As shown in [Fig. 3], the first sealing ring 4 can be mounted in the first mounting groove 6021 as follows: one part of the first sealing ring 4 is in the first mounting groove 6021, while the other part of the first sealing ring 4 extends out of the groove and is flattened by the external light guide ring 6a, where the external light guide ring 6a is one of each of two adjacent light guide rings 6 that is further from the reflector 8. When the first sealing ring 4 is flattened between the external light guide ring 6a and the internal light guide ring 6b, sealing is achieved. The sealing structure proposed in this embodiment is not easily affected by humidity and temperature.

[0070] In one embodiment, with reference to Figs. 1 and 5, the second sealing ring 5 is disposed in a second mounting groove 801 which is formed on an external peripheral surface of the reflector 8 and extends along a circumference of the reflector 8.

[0071] The second mounting groove 801 is for mounting the second sealing ring 5. Installing the second sealing ring 5 in the second mounting groove 801 is similar to installing the first sealing ring 4 in the first mounting groove 6021, and is therefore not described in detail again. The second sealing ring 5 is flattened between the reflector 8 and the internal light guide ring 6b to ensure a seal between them.

[0072] In one embodiment, with reference to Figs. 1 and 3, the recessed luminaire proposed by this application further comprises a seal 1 which is disposed between the housing 2 and an external light guide ring 6a, where the external light guide ring 6a is one of the at least two light guide rings 6 which is furthest from the reflector 8. The seal 1 is used to seal a space between the housing 2 and the external light guide ring 6a.

[0073] The seal 1 can prevent the infiltration of foreign materials, such as dust and moisture, into the recessed luminaire, thus improving its protection against ingress. As shown in [Fig. 3], by sealing the gap between the housing 2 and the external light guide ring 6a, the seal 1 can protect the second light source 302 and prevent light from the second light source 302 from shining outwards through the gap.

[0074] By way of example, the seal 1 can be made of ethylene-vinyl acetate (EVA) copolymer. The EVA material is flexible and elastic, allowing the seal 1 to seal the gap when flattened.

[0075] In one embodiment, with reference to Figs. 1 and 2, the recessed luminaire proposed by this application further comprises a plate-shaped diffuser 9 which is mounted in a third mounting groove formed on the inner wall of the reflector 8.

[0076] The plate-shaped diffuser 9 is used in the normal mode of the recessed luminaire, and not in the night mode. It is located below the first light source 301 and performs functions such as ensuring uniform distribution of light from the first light source 301, preventing glare, protecting the first light source 301, and improving lighting efficiency.

[0077] The edge of the plate-shaped diffuser 9 can be clipped into the third mounting groove, thus allowing the plate-shaped diffuser 9 to be fixed and installed without additional parts. The edge of the plate-shaped diffuser 9 can be clipped into the third mounting groove by slightly deforming the plate-shaped diffuser 9 and / or the reflector 8.

[0078] In one embodiment, one or more of the internal walls of the third mounting groove are coated with sealant. On the one hand, the sealant can improve the strength of the bond between the edge of the plate-shaped diffuser 9 and the reflector 8 by means of adhesion. On the other hand, the sealant can seal the gaps between the edge of the plate-shaped diffuser 9 and the internal walls of the third mounting groove, thus improving the protection against light infiltration of the recessed luminaire and protecting the first light source 301.

[0079] The above descriptions are preferred embodiments of this application and are not intended to limit the scope of this application. All modifications, substitutions by equivalents, improvements, etc., made in accordance with the spirit and principles of this application shall be included within the scope of protection of this application.

Claims

Demands

1. A recessed luminaire with night mode, comprising: a housing (2); a light source module (3) disposed in the housing (2) and comprising a first light source (301) and a second light source (302) around the first light source (301); a reflector (8) for reflecting the light from the first light source (301), wherein the reflector (8) separates the second light source (302) from the first light source (301), and a first end of the reflector (8) is disposed in the housing (2) and connected to the light source module (3); a light direction module fitted onto the reflector (8), wherein the light direction module comprises at least two light direction rings (6) for directing the light from the second light source (302) outwards from the recessed luminaire, with the at least two light direction rings (6) nested one inside the other;and at least one shading ring (7), in which each of the at least two adjacent light guiding rings (6) corresponds to a shading ring (7), and each shading ring (7) is arranged between two corresponding adjacent light guiding rings (6).

2. Recessed luminaire according to claim 1, wherein each light-directing ring (6) comprises a connecting section (601) close to the light source module (3) and a diffusion section (602) away from the light source module (3), with the diffusion section (602) extending along a first direction away from the light source module (3) and forming a frustoconical structure with a diameter gradually increasing along the first direction.

3. A recessed luminaire according to claim 2, wherein two connecting sections (601) of each of two adjacent light-guiding rings (6) are in contact with each other, and a space extending along a radial direction of the frustoconical structure is formed between two diffusion sections (602) of each of two adjacent light-guiding rings (6), with a shading ring (7) of the at least one shading ring (7) disposed in space.

4. Recessed luminaire according to claim 2, wherein an external peripheral surface of the diffusion section (602) is provided with a plurality of diffusion indentations (603).

5. Recessed luminaire according to claim 1, further comprising: at least one first sealing ring (4), in which each of two adjacent light-directing rings (6) corresponds to a first sealing ring (4), and each first sealing ring (4) is disposed between two corresponding adjacent light-directing rings (6); and a second sealing ring (5) disposed between the reflector (8) and a light-directing ring (6b) of the at least two light-directing rings (6) adjacent to the reflector (8).

6. Recessed luminaire according to claim 5, wherein an external peripheral surface of an internal light guide ring (6b), which is one of each two adjacent light guide rings (6) that is closest to the reflector (8), is provided with a first mounting groove (6021) extending along a circumference of the internal light guide ring (6b), with a first sealing ring (4) among at least one first sealing ring (4) disposed in the first mounting groove (6021).

7. Recessed luminaire according to claim 5, wherein an external peripheral surface of the reflector (8) is provided with a second mounting groove (801) extending along a circumference of the reflector (8), with the second sealing ring (5) disposed in the second mounting groove (801).

8. Recessed luminaire according to claim 1, further comprising a gasket (1) disposed between the housing (2) and an external light guide ring (6a) which is one of at least two light guide rings (6) furthest from the reflector (8), wherein the gasket (1) is used to seal a gap between the housing (2) and the external light guide ring (6a).

9. Recessed luminaire according to claim 1, further comprising a plate-shaped diffuser (9), in which an internal wall of the reflector (8) is provided with a third mounting groove for mounting the plate-shaped diffuser (9).

10. Recessed luminaire according to claim 9, in which an internal wall of the third mounting groove is coated with a sealant.

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