OA21162A - Lighting including a ventilated disinfection duct. - Google Patents

Abstract

The invention relates to a device (1) for lighting and disinfecting a gas mixture (G) comprising: • a first ventilation device (2) arranged to suck up a gas mixture through a suction port (3) said first ventilation device; • a second ventilation device (4) arranged to evacuate a gas mixture through an evacuation port (5) of said second ventilation device; • a disinfection conduit (6) connecting the suction port (3) to the discharge port (5) and comprising a plurality of disinfection radiation sources (7) arranged along the disinfection conduit (6), each disinfection radiation source being configured to emit disinfection radiation intended to disinfect the gas mixture (G) sucked into the disinfection conduit (6); • a plurality of sources of lighting radiation (8) arranged along the disinfection conduit (6) on an external face of said disinfection conduit (6) and intended to emit lighting radiation; and • a housing (9) comprising a plurality of faces opaque to disinfection radiation.

Description

DESCRIPTION

TITLE: lighting including a ventilated disinfection duct

Preamble

The present invention relates to a device for lighting and disinfecting a gas mixture.

It is known to produce a device for disinfecting a gas mixture using disinfection radiation such as UV rays for example. It is also known to produce a lighting device intended to illuminate a given room such as a meeting room or a work office for example.

These provisions are satisfactory in that it is possible to disinfect the ambient air in a room lit by a lighting device.

However, the installation of an independent disinfection device and a lighting device in the same room requires a relatively large location and requires a specific installation process for each device.

The present invention aims to resolve all or part of the drawbacks mentioned above.

The technical problem underlying the invention consists in particular of providing a device for lighting and disinfecting a gas mixture which is simple and economical in structure, while occupying a reduced space and while being easy to install. .

General description

For this purpose, the present invention relates to a lighting and disinfection device according to the aforementioned type comprising:

• a first ventilation device arranged to suck a gas mixture through a suction port of said first ventilation device;

• a second ventilation device arranged to evacuate a gas mixture through an evacuation port of said second ventilation device;

• a disinfection conduit connecting the suction port to the discharge port and comprising a plurality of disinfection radiation sources arranged along the disinfection conduit, each disinfection radiation source being configured to emit disinfection radiation intended to disinfect the gas mixture drawn into the disinfection conduit;

• a plurality of sources of lighting radiation arranged along the disinfection conduit on an external face of said disinfection conduit and intended to emit lighting radiation; and • a housing comprising a plurality of faces opaque to disinfection radiation and a face transparent or partially transparent to lighting radiation arranged opposite the plurality of sources of lighting radiation.

The gas mixture sucked through the suction port may be infected by a microorganism such as a virus or bacteria, for example, and the gas mixture discharged through the exhaust port is disinfected after being exposed to the disinfection radiation in the conduit disinfection.

The gas mixture can, for example, designate air.

Advantageously, the lighting and disinfection device saves space compared to an independent decontamination device because the latter must be able to be mounted alongside pre-existing lighting systems.

Thus, the lighting and disinfection device is easy to install because it does not require additional space compared to an independent decontamination device.

The arrangements according to the invention make it possible to combine lighting and disinfection functionality in the same device, and thus save space compared to an independent decontamination device because the latter must be able to be mounted alongside disinfection systems. pre-existing lighting as well as ease of installation because it does not require additional space compared to an independent decontamination device.

The lighting and disinfection device may also have one or more of the following characteristics, taken alone or in combination.

The disinfection conduit is substantially cylindrical or polygonal, and for example parallelepiped and extends along an axis of the conduit.

The lighting and disinfection device can be configured so as to maintain an exposure dose inside the disinfection conduit of an average value between 1 mJ/cm2 and 7 mJ/cm2, and preferably between 2 mJ /cm2 and 5 mJ/cm2.

The internal volume of the disinfection conduit can be defined so as to maintain an exposure dose inside the disinfection conduit of average value between 1 mJ/cm ² and 7 mJ/cm ² , and preferably between 2 mJ/cm ² and 5 mJ/cm ² .

The first ventilation device and the second ventilation device can be configured to provide a volume flow rate of the gas mixture defined so as to maintain an exposure dose inside the disinfection duct of average value between 1 mJ/cm ² and 7 mJ/cm ² , and preferably between 2 mJ/cm ² and 5 mJ/cm ² .

A number of disinfection radiation sources of the plurality of disinfection radiation sources can be defined so as to maintain an exposure dose inside the disinfection duct of an average value between 1 mJ/cm ² and 7 mJ /cm ² , and preferably between 2 mJ/cm ² and 5 mJ/cm ² .

Preferably, the axis of the conduit is rectilinear.

According to one embodiment, the first ventilation device and the second ventilation device are oriented along the axis of the duct or substantially parallel to the axis of the duct. In this case, the suction and evacuation of the gas mixture is done parallel to the axis of the conduit.

According to one embodiment, the first ventilation device and the second ventilation device are arranged substantially perpendicular to the axis of the duct. In this case, the suction and evacuation of the gas mixture takes place approximately perpendicular to the axis of the conduit.

According to one possibility, the first ventilation device and the second ventilation device are embedded in the housing and communicate with the exterior of the lighting and disinfection device through housing openings.

According to one possibility, the housing openings comprise a protective wall arranged to allow the suction and evacuation of the gas mixture and to block an evacuation of the disinfection radiation outside the lighting and disinfection device.

The protective wall may be porous and may have a regular polygonal tiling structure.

The protective wall can also have a chicane shape, in other words a zigzag shape.

Advantageously, blocking the evacuation of disinfection radiation outside the lighting and disinfection device makes it possible to protect a human from disinfection radiation which can be harmful.

According to another embodiment, the disinfection conduit may have two elbow ends connected respectively to the suction port and to the evacuation port so as to prevent evacuation of the disinfection radiation outside of said device.

The housing may include an internal separation wall arranged to separate the interior of the housing into two airtight parts, one of the airtight parts comprising the disinfection conduit.

Advantageously, the internal separation of the housing into two hermetic parts makes it possible to limit the risk of contamination of the disinfected gas mixture.

The plurality of lighting radiation sources may be a plurality of electroluminescent lamps.

According to one possibility, the plurality of disinfection radiation sources is a plurality of ultraviolet ray lamps.

The ultraviolet rays can for example be of the UV-C type and have a wavelength substantially between 100 nm and 280 nm.

Advantageously, ultraviolet rays of the UV-C type can destroy bacteria or viruses whose DNA is sensitive to radiation having wavelengths between 260nm and 280nm.

The housing may include suspension rods configured to cooperate with a fixed surface to suspend the lighting and disinfection device at a defined height relative to the fixed surface.

The fixed surface can, for example, designate a ceiling or a floor or a wall of a meeting room.

According to one aspect of the invention, the lighting and disinfection device is configured to produce lighting radiation and disinfection radiation when it is subjected to a direct voltage substantially equal to 12V or 24V.

The plurality of lighting radiation sources can be configured to have a color rendering index substantially greater than 80.

According to one possibility, the lighting radiation emitted by the plurality of sources of lighting radiation is configured to have a luminous flux substantially greater than 1000 lumens.

The lighting radiation emitted by the plurality of lighting radiation sources may have a color temperature substantially between 2700K and 5000K.

The illumination radiation emitted by the plurality of illumination radiation sources may have a beam angle substantially greater than 30 degrees.

According to one possibility, the lighting and disinfection device is configured to produce a noise level below 80dB.

Description with reference to the figures

The invention will be better understood with the help of the detailed description which is set out below with reference to the appended drawings in which:

[Fig.l] is a perspective view of the lighting and disinfection device described according to an embodiment where ventilation devices are oriented along an axis of a disinfection conduit of said lighting and disinfection device.

[Fig.2] is a sectional view of the lighting and disinfection device according to the embodiment described in Figure 1.

[Fig.3] is a perspective view of the lighting and disinfection device described according to an embodiment where the ventilation devices are arranged substantially perpendicular to the axis of the duct.

[Fig.4] is a sectional view of the lighting and disinfection device according to the embodiment described in Figure 3.

[Fig.5] is a perspective view of a variant of the lighting and disinfection device presented in Figure 1, in which the lighting and disinfection device has dimensions essentially greater than those of the lighting device and disinfection of Figure 1, and in which the housing of the lighting and disinfection device is cylindrical.

[Fig.6] is a perspective view of the interior of the lighting and disinfection device of Figure 5.

In the detailed description which follows of the figures defined above, the same elements or elements fulfilling identical functions may retain the same references so as to simplify the understanding of the invention.

Static description of the device

The device 1 for lighting and disinfecting a gas mixture G, presented in Figures 1 and 3, comprises a first ventilation device 2 arranged to suck a gas mixture through a suction port 3 of said first ventilation device , a second ventilation device 4 arranged to evacuate a gas mixture through an evacuation port 5 of said second ventilation device, a disinfection conduit 6 connecting the suction port 3 to the evacuation port 5 and comprising a plurality of disinfection radiation sources 7 arranged along the disinfection conduit 6, each disinfection radiation source being configured to emit disinfection radiation intended to disinfect the gas mixture G sucked into the disinfection conduit 6, a plurality of radiation sources lighting 8 arranged along the disinfection conduit 6 on an external face of said disinfection conduit 6 and intended to emit lighting radiation, and a housing 9 comprising a plurality of faces opaque to disinfection radiation and a transparent face or partially transparent 10 to the lighting radiation arranged opposite the plurality of sources of lighting radiation 8.

The gas mixture can, for example, designate air.

Ventilation device may refer to a fan. Furthermore, the gas mixture sucked through the suction port may be infected by a microorganism such as a virus or bacteria, for example, and the gas mixture discharged through the exhaust port is disinfected after being exposed to the disinfection radiation in the disinfection conduit 6.

The disinfection conduit 6 is substantially cylindrical or polygonal, and for example parallelepiped, and extends along an axis of the conduit X as shown in Figures 2 and 4.

The gas mixture G is sucked by the first ventilation device 2 through the first suction port 3 and circulates in the disinfection conduit 6. During the circulation of the gas mixture G in the disinfection conduit 6, particles or micro -organisms included in the gas mixture G are exposed to electromagnetic radiation from the plurality of disinfection radiation sources 7, for example to ultraviolet radiation from UV-C lamps.

An exposure dose means an amount of energy transmitted by a disinfection radiation source of the plurality of disinfection radiation sources 7 in the gas mixture G per unit area.

The lighting and disinfection device can be configured so as to maintain an exposure dose inside the disinfection conduit 6 of average value between 1 mJ/cm ² and 7 mJ/cm ² , and preferably between between 2 mJ/cm ² and 5 mJ/cm ² .

In particular, the lighting and disinfection device can be configured so as to maintain an exposure dose inside the disinfection conduit 6 of average value between 1 mJ/cm ² and 7 mJ/cm ² , and preferably between 2 mJ/cm ² and 5 mJ/cm ² independently of an external environment in which the lighting and disinfection device is installed. In other words, whatever the volume of a room in which the lighting and disinfection device is installed, the lighting and disinfection device can be configured so as to maintain an exposure dose inside the disinfection conduit 6 with an average value between 1 mJ/cm ² and 7 mJ/cm ² , and preferably between 2 mJ/cm ² and 5 mJ/cm ² .

Advantageously, an exposure dose of average value between 2 mJ/cm ² and 3 mJ/cm ² allows, for certain types of microorganisms, a disinfection rate of the gas mixture G of between 90% and 99.999% .

According to one possibility, the internal volume of the disinfection conduit 6 is defined so as to maintain an exposure dose inside the disinfection conduit 6 of average value between 1 mJ/cm ² and 7 mJ/cm ² , and preferably between 2 mJ/cm ² and 5 mJ/cm ² .

The first ventilation device 2 and the second ventilation device 4 can be configured to provide a volume flow rate of the gas mixture G defined so as to maintain an exposure dose inside the disinfection conduit 6 of average value between 1 mJ/cm ² and 7 mJ/cm ² , and preferably between 2 mJ/cm ² and 5 mJ/cm ² .

For example, the first ventilation device 2 and the second ventilation device 4 can each provide a volume flow rate of between 1 CFM (cubic foot/minute) and 2000 CFM. For example, the first ventilation device 2 and the second ventilation device 4 can each provide a volume flow rate of 7.7 CFM.

The first ventilation device 2 and the second ventilation device 4 can be configured to ensure laminar or turbulent flow of the gas mixture G in the disinfection conduit 6.

Advantageously, the turbulent flow of the gas mixture G in the disinfection conduit 6 promotes mixing of the gas mixture G in the disinfection conduit G, and therefore promotes the disinfection of the gas mixture G.

Advantageously, the first ventilation device 2 and second ventilation device 4 allow active circulation of the gas mixture G in the disinfection conduit 6. The active circulation makes it possible to limit the circulation of the gas mixture G in areas poorly lit by the plurality of disinfection radiation sources 7.

A number of disinfection radiation sources of the plurality of disinfection radiation sources 7 can be defined so as to maintain an exposure dose inside the disinfection conduit 6 of average value between 1 ml/cm ² and 7 mJ/cm ² , and preferably between 2 mJ/cm ² and 5 mJ/cm ² .

Advantageously, the lighting and disinfection device can be configured so that the internal volume of the disinfection conduit 6, the flow rate of the first ventilation device 2 and of the second ventilation device 4 and the number of sources of disinfection radiation of the plurality of disinfection radiation sources 7 are adapted to the volume of a room in which the lighting and disinfection device is installed, so as to maintain an exposure dose inside the disinfection conduit disinfection 6 of average value between 1 mJ/cm ² and 7 mJ/cm ² , and preferably between 2 mJ/cm ² and 5 mJ/cm ² .

The lighting and disinfection device can be installed in a kitchen, a hospital room, a hangar, a shopping center or any other place where we would like to disinfect the air. Preferably, the axis of the conduit X presented in Figures 2 and 4 is rectilinear.

According to one possibility, the first ventilation device 2 and the second ventilation device 4 are arranged orthogonally with respect to the axis of the duct X.

The plurality of lighting radiation sources 8 may be a plurality of electroluminescent lamps.

Furthermore, the plurality of lighting radiation sources 8 is configured to have a color rendering index substantially greater than 80 and the lighting radiation emitted by the plurality of lighting radiation sources 8 is configured to have a luminous flux significantly greater than 1000 lumens.

Furthermore, the lighting radiation emitted by the plurality of lighting radiation sources 8 has a color temperature substantially between 2700K and 5000K and a beam angle substantially greater than 30 degrees.

The plurality of disinfection radiation sources 7, visible in Figures 1 to 4, is a plurality of ultraviolet ray lamps and the ultraviolet rays can for example be of the UV-C type and have a wavelength substantially between 100 nm and 280 nm.

Advantageously, ultraviolet rays of the UV-C type can destroy bacteria or viruses whose DNA is sensitive to radiation having wavelengths between 260nm and 280nm.

The first ventilation device 2 and the second ventilation device 4 also, presented in Figure 1 are embedded in the housing 9 and communicate with the exterior of the lighting and disinfection device through housing openings 9 'as the show figures 2 and 4.

The housing openings 9' comprise a protective wall 11 shown in Figure 2 and arranged to allow suction A and evacuation E of the gas mixture G and to block evacuation of the disinfection radiation outside the device d lighting and disinfection.

The protective wall 11 may be porous and may have a regular polygonal tiling structure.

The protective wall 11 can also have a chicane shape, in other words a zigzag shape.

Advantageously, blocking the evacuation of disinfection radiation outside the lighting and disinfection device makes it possible to protect a human from disinfection radiation which can be harmful.

According to an embodiment presented in Figures 1 and 2, the first ventilation device 2 and the second ventilation device 4 are oriented along the axis of the duct X or substantially parallel to the axis of the duct X. In this case, the suction A and evacuation E of the gas mixture G takes place parallel to the axis of the conduit X.

According to one embodiment, the first ventilation device 2 and the second ventilation device 4 are arranged substantially perpendicular to the axis of the duct X. This is the embodiment presented in Figures 3 and 4. In this case , the suction A and evacuation E of the gas mixture takes place substantially perpendicular to the axis of the conduit evacuation 5 so as to prevent evacuation of the disinfection radiation outside said device 1.

The housing 9 comprises an internal separation wall 12 visible in Figures 2 and 4 and arranged to separate the interior of the housing into two airtight parts, one of the airtight parts comprising the disinfection conduit 6.

Advantageously, the internal separation of the housing into two hermetic parts makes it possible to limit the risk of contamination of the disinfected gas mixture.

In the embodiment presented in Figures 1 and 2, the housing 9 comprises suspension rods 13 configured to cooperate with a fixed surface so as to suspend the lighting and disinfection device at a defined height relative to the fixed surface.

The fixed surface can, for example, designate a ceiling or a floor or a wall of a meeting room.

According to one aspect of the invention, the lighting and disinfection device is configured to produce lighting radiation and disinfection radiation when it is subjected to a direct voltage substantially equal to 12V or 24V.

The lighting and disinfection device 1 is configured to produce a noise level below 80dB.

Advantageously, the lighting and disinfection device saves space compared to an independent decontamination device because the latter must be able to be mounted alongside pre-existing lighting systems.

Thus, the lighting and disinfection device is easy to install because it does not require additional space compared to an independent decontamination device.

Description of the device in operation

During operation of the lighting and disinfection device 1 described, the gas mixture G, which can be infected by a microorganism such as a virus or a bacteria for example, is sucked in by the first ventilation device 2 through the port suction 3 inside the disinfection conduit 6. The gas mixture then passes through the disinfection conduit 6 in which is arranged the plurality of disinfection radiation sources 7 which emits the disinfection radiation, such as UV-rays. C for example, intended to disinfect the gas mixture G sucked inside the disinfection conduit 6. Thus the gas mixture G is disinfected all along the disinfection conduit 6 and is subsequently evacuated outside the device 1 of lighting and disinfection by the second ventilation device 4 through the evacuation port 5.

Furthermore, the plurality of sources of lighting radiation 8 arranged along the disinfection conduit 6 on the external face of said disinfection conduit 6 emits lighting radiation which passes through the transparent or partially transparent face 10 of the housing 9 and illuminates a given room such as a meeting room or a work office for example.

The two internal parts of the housing, in other words the part comprising the disinfection conduit 6 and the part comprising the plurality of lighting radiation sources 8, are hermetically separated by an internal separation wall 12 making it possible to limit the risk of contamination of the disinfected gas mixture G.

The two parts can also have independent operation, in other words the lighting and disinfection device 1 described can be used for lighting or for disinfection or for both lighting and disinfection.

Although the invention has been described in connection with particular examples of embodiment, it is quite obvious that it is in no way limited and that it includes all the technical equivalents of the means described as well as their combinations if these fall within the scope of the invention.

Claims (17)

1. Device (1) for lighting and disinfecting a gas mixture (G) comprising: ' · a first ventilation device (2) arranged to suck a gas mixture through a suction port (3) of said first ventilation device; • a second ventilation device (4) arranged to evacuate a gas mixture through an evacuation port (5) of said second ventilation device; • a disinfection conduit (6) connecting the suction port (3) to the evacuation port (5) and comprising a plurality of disinfection radiation sources (7) arranged along the disinfection conduit (6), each source of disinfection radiation being configured to emit disinfection radiation intended to disinfect the gas mixture (G) sucked into the disinfection conduit (6); • a plurality of sources of lighting radiation (8) arranged along the disinfection conduit (6) on an external face of said disinfection conduit (6) and intended to emit lighting radiation; and • a housing (9) comprising a plurality of faces opaque to disinfection radiation and a face transparent or partially transparent (10) to lighting radiation arranged opposite the plurality of sources of lighting radiation (8). 2. Lighting and disinfection device according to claim 1, in which the disinfection conduit (6) is substantially cylindrical or polygonal, and for example parallelepiped, and extends along an axis of the conduit (X). 3. Lighting and disinfection device according to claim 1 or 2, which is configured so as to maintain an exposure dose inside the disinfection conduit (6) of average value between 1 mJ/cm ² and 7 mJ/cm ² , and t preferably between 2 mJ/cm ² and 5 mJ/cm ² . 4. Lighting and disinfection device according to any one of the i! preceding claims, in which the internal volume of the disinfection conduit (6) is defined so as to maintain an exposure dose to 13 inside the disinfection conduit (6) with an average value of between 1 mJ/cm ² and 7 mJ/cm ² , and preferably between 2 mJ/cm ² and 5 mJ/cm ² . 5. Lighting and disinfection device according to any one of the preceding claims, in which the first ventilation device (2) and the second ventilation device (4) are configured to provide a volume flow rate of the gas mixture (G) defined so as to maintain an exposure dose inside the disinfection conduit (6) of average value between 1 mJ/cm ² and 7 mJ/cm ² , and preferably between 2 mJ/cm ² and 5 mJ/cm ² . 6. Lighting and ventilation device according to one of the preceding claims, wherein a number of disinfection radiation sources of the plurality of disinfection radiation sources (7) is defined so as to maintain an exposure dose inside the disinfection conduit (6) with an average value of between 1 mJ/cm ² and 7 mJ/cm ² , and preferably between 2 mJ/cm ² and 5 mJ/cm ² . 7. Lighting and disinfection device according to any one of the preceding claims, in which the first ventilation device (2) and the second ventilation device (4) are embedded in the housing (9) and communicate with the exterior of the lighting and disinfection device through housing openings (9'). 8. Lighting and disinfection device according to claim 7, in which the housing openings (9') comprise a protective wall (11) arranged to allow suction (A) and evacuation (E) of the mixture gaseous (G) and to block an evacuation of the disinfection radiation outside the lighting and disinfection device. 9. Lighting and disinfection device according to any one of the preceding claims, in which the housing (9) comprises an internal separation wall (12) arranged to separate the interior of the housing into two hermetic parts, one of the parts airtight including the disinfection conduit (6). 10. Lighting and disinfection device according to any one of the preceding claims, wherein the plurality of sources of lighting radiation (8) is a plurality of electroluminescent lamps. 11. Lighting and disinfection device according to any one of the preceding claims, wherein the plurality of disinfection radiation sources (7) is a plurality of ultraviolet ray lamps. 12. Lighting and disinfection device according to any one of the preceding claims, characterized in that the housing (9) comprises suspension rods (13) configured to cooperate with a fixed surface so as to suspend the lighting device. lighting and disinfection at a defined height in relation to the fixed surface. 13. Lighting and disinfection device according to one of the preceding claims, wherein the plurality of lighting radiation sources (8) is configured to have a color rendering index substantially greater than 80. 14. Lighting and disinfection device according to one of the preceding claims, wherein the lighting radiation emitted by the plurality of lighting radiation sources (8) is configured to have a luminous flux substantially greater than 1000 lumens . 15. Lighting and disinfection device according to one of the preceding claims, wherein the lighting radiation emitted by the plurality of sources of lighting radiation (8) has a color temperature substantially between 2700K and 5000K. 16. Lighting and disinfection device according to one of the preceding claims, wherein the lighting radiation emitted by the plurality of lighting radiation sources (8) has a beam substantially greater than 30 degrees. 17. Lighting and disinfection device according to any one of the preceding claims, which is configured to produce a noise level less than 80dB.