FLUSH-MOUNTED LINEAR SLOT DIFFUSER PROFILE AND FLUSH-MOUNTED LINEAR SLOT DIFFUSER

Abstract

This technical solution relates to the field of ventilation systems equipment, in particular to linear slot diffusers for flush mounting, built into the ceiling made of gypsum plasterboard (GPB) and metal frame. The technical result is to increase the reliability of the diffuser due to the frame geometry of the profile, providing a single rigid structure with a metal framework of gypsum plasterboard ceilings after the installation of the diffuser. The claimed result is achieved by a frame structure of the diffuser profiles consisting of three hollow segment frames and forming its outer and inner walls, with the inner part of the profile formed by the obtuse-angled surface, and the area of space forming hollows in each segment is greater than the area of the frame of the respective segment.

Description

TECHNICAL FIELD

This technical solution relates to the field of ventilation systems equipment, in particular to linear slot diffusers for flush mounting, built into the ceiling made of gypsum plasterboard (GPB) and metal frame.

PRIOR ART

Linear slotted diffusers are used for installation in suspended ceilings in order to hide the frame of the ventilation grille and provide the required air flow distribution.

Various types of linear diffusers for flush mounting are known from the prior art, which usually form a general framework of the diffuser placed in the gypsum plasterboard ceiling. Examples of such solutions include diffusers known from ES 1064231 U, U.S. Pat. No. 4,537,347 A, KR 20130108792 A.

The Ritech slot diffuser design (http://www.ritech.ro/_docs/188/188_1_20170907120816.pdf) can be considered as an analogue. The diffuser has a curved profile with a segment organized as a cavity within a frame designed to mount the diffuser to the GPB ceiling. The profile of the diffuser in the lower part contains a finishing element which has a sharpened profile and is organized as an angle-shaped thin frame.

The disadvantage of the profile design of the known solution is its low thermal insulation characteristics. If used in rooms with a tropical humid climate, the cooling air passing through the diffuser channel increases the risk of condensation on its walls, which significantly reduces the product performance. Also, additional disadvantages are: reduced reliability and strength of the diffuser due to the frameless design of its profile; the finishing element used for finishing does not provide a strong fixation of the putty layer; ineffective air flow direction due to the internal geometry of the profiles, resulting in poor distribution of air flow to the sides.

SUMMARY

The claimed invention is aimed at solving the technical problem in terms of creating an effective and reliable design of a linear slot diffuser for flush mounting, eliminating the significant drawbacks of solutions known from the state of the art.

The technical result is to increase the reliability of the diffuser due to the frame geometry of the profile, providing a single rigid structure with a metal framework of gypsum plasterboard ceilings after the installation of the diffuser.

Also, an additional effect of the present invention is to increase the thermal insulation characteristics of the linear diffuser by implementing the profile geometry in the form of hollow segment frames, which minimizes the heat loss and significantly reduces the risk of condensation on the outer edge of the diffuser when the cooled air is supplied through it.

The claimed technical solution in one of the preferred embodiments is performed in the form of a flush-mount linear slot diffuser profile made of metal in the form of a frame structure consisting of three hollow segment frames and forming its outer and inner walls. The inner part of the profile is formed by the surface having an obtuse angle, and the area of space forming hollows in each segment is greater than the area of the frame of the corresponding segment.

In one particular embodiment, the upper part of the profile has a groove on the inner surface for attaching a metal sheet and a ledge for attaching a load-carrying bridge.

In another particular embodiment, the lower segment has a shape like a right-angled triangle.

In another particular embodiment, the lower segment contains a finishing element in the form of a profiled surface.

In another particular embodiment, the surface profile is made in the form of alternating protrusions and grooves, with the distance between them depending on full groove filling with putty.

In another particular embodiment, a locking protrusion is made on one side of the profiled surface.

The claimed technical solution in another preferred embodiment is performed in the form of a flush-mount linear slot diffuser profile made of metal in the form of a frame structure consisting of three hollow segment frames and forming its outer and inner walls, with the inner part of the profile formed by the surface having two obtuse angles, and the area of space forming hollows in each segment is greater than the area of the frame of the corresponding segment.

In one particular embodiment, the upper part of the profile has a groove on the inner surface for attaching a metal sheet and a ledge for attaching a load-carrying bridge.

In another particular embodiment, the lower segment is shaped close to a right-angled triangle.

In another particular embodiment, the lower segment contains a finishing element in the form of a profiled surface.

In another particular embodiment, the surface profile is made in the form of alternating protrusions and grooves, with the distance between them depending on full groove filling with putty.

In another particular embodiment, a locking protrusion is made on one of the lower sides of the segment.

The claimed technical solution in yet another preferred embodiment is a flush-mounted linear slot diffuser containing two profiles connected by a load-carrying bridge and oriented to each other with their inner surfaces, implemented as any of the above embodiments.

In one particular embodiment of the diffuser design, the load-carrying bridge is attached to the profile protrusions.

In another particular embodiment, the central part of a diffuser contains a blade adjustment element made of a metal profile, with blade mounting units located on its sides, with blades attached to these units.

In another particular embodiment, each blade contains at least two protrusions on the part securing the blade to the mounting unit.

In another particular embodiment, the diffuser contains end caps.

In another particular embodiment, the central part of a diffuser contains a platform for the luminaire.

In another particular embodiment, the platform is made of a trapezoidal profile.

In another particular embodiment, the platform contains a cable channel to accommodate the wiring.

DRAWINGS

FIGS. 1A-1B illustrate embodiments of the claimed structure of the slot diffuser profiles.

FIGS. 2A-2B illustrate embodiments of the slot diffusers.

FIG. 3 illustrates the design of the finishing element.

FIG. 4 illustrates the blade attachment unit.

FIGS. 5A-5B illustrate the diagram for installation of slot diffusers in the gypsum plasterboard ceiling.

FIG. 6 illustrates an embodiment of a diffuser with a luminaire.

FIGS. 7A-7B illustrate the results of calculating the air flow dynamics through the claimed slot diffuser and the equivalent.

FIGS. 8A-8C illustrate an example of a manufactured slot diffuser according to the first embodiment.

FIGS. 9A-9C illustrate an example of a manufactured slot diffuser according to the second embodiment.

DETAILED DESCRIPTION OF THE INVENTION

FIG. 1A shows the first embodiment of the flush-mounted slot diffuser profile (10). Profile (10) is made as a single-piece metal product and contains a frame structure that consists of three segments (11, 12, 13). Each segment (11-13) is a hollow frame, the inner area of which is larger than the area of the frame around it. In the example shown, the upper segment (11) contains three hollow compartments separated by a frame, but it is clear that this embodiment does not limit the geometry of the segments.

Segments (11-13) are shaped and cast so that their arrangement forms an obtuse angle α, thus forming the inner surface of the profile (10). The outer surface formed by the segments (11-13) is stepped, due to the conjugation of the segments (11, 12). The lower segment (13) is predominantly a right-angled triangle in shape and forms a finishing element. Its structural features will be disclosed later in these application materials.

The upper part of the profile (10) has a groove on its inner surface (14) designed to attach a decorative metal sheet, and a ledge (15) which provides alignment of the load-carrying bridge connecting the two profiles (10) in a single rigid structure of a slot diffuser.

The presented profile embodiment (20) in FIG. 1B is also made of three segments (21-23) which form the outer and inner surfaces of the profile (20). The arrangement of the segments (21-23) is such that the inner surface of the profile (20) forms two joints at an obtuse angle β and σ. The middle segment (22) has a framework that forms two hollow compartments, but it is clear that the presented embodiment does not limit the segment geometry. The lower segment (23) is similar to segment (13) of the profile (10) and has a predominantly right-angled triangle shape and also forms a finishing element.

The upper part of the profile (20) has an extension with a groove (24) designed to attach a decorative metal sheet, and a ledge (25), which provides alignment of the load-carrying bridge that connects the two profiles (20) in a single rigid structure of a slot diffuser.

The profile embodiment (10) can be used for a slot of 10-40 mm, while the profile (20) can be used for a slot 45-80 mm wide, which is achieved by adjusting the load-carrying bridge for a slot of 10 to 40 mm, and 45 to 80 mm, respectively.

FIG. 2A-2B shows embodiments of diffusers (100, 200) formed by structural connection of profile versions (10, 20). Each diffuser (100, 200) is formed by two identical profile versions (10 or 20) facing each other with their inner surfaces and connected by a load-carrying bridge (16, 26), which is a rectangular element mounted on a ledge (15, 25) and fixed to the profile using fastening elements (10, 20). The load-carrying bridge (16, 26) provides the required rigidity of the structure. A decorative metal sheet (14, 24) is installed into the grooves, covering the upper part of the diffuser (100, 200).

The central part of a diffuser (100, 200) contains a blade fixing element (17, 27) made of a metal profile, with blade mounting units located on its sides, with blades installed into their grooves (171, 172, 271, 272). The blade fixing element (17, 27) allows for closing and opening the blades (171, 172, 271, 272) to adjust the airflow through the diffuser (100, 200).

The inner surface of the profiles (10, 20) formed with obtuse-angled bends improves the air flow distribution through the diffusers (100, 200), by providing a tighter air flow to the ceiling (sticking) when closing one of the blades.

FIG. 3 shows the finishing element (130) located on the lower segment (13) of the profile (10). The first version of the profile (10) is chosen as an example because the finishing element and the geometry of the lower segment (13, 23) of the profiles (10, 20) are identical.

The finishing element (130) is the profiled lower surface of the lower segment of the profiles (10 or 20), made as alternating protrusions (131) and grooves (132). Grooves (132) have a widening section (1321) which shall be larger than the entry section (1322) of the recess. For example, the ratio of widening section size (1321) to the entry section size (1322) may be at least 1 to 1.2, which depends on the shape of the groove (132). Due to this ratio of groove (132) sections (1321, 1322), the putty (30), when filling the entire groove (132), hardens in the thrust with its subsequent drying and becomes self-supporting along with the finishing layer, which increases the reliability and efficiency of the diffuser (100, 200) due to reducing the possible delamination of the putty (30) under the external loads (e.g. geometric displacement of the ceiling, house shrinkage, etc.). It should be obvious to a person skilled in the art that the groove (132) geometry can be of a different shape, while maintaining the ratio of the groove base and its recess.

When finishing the diffuser (100, 200) installed in the GPB (31), this type of geometry allows for filling the grooves (132) with putty (30) by applying a putty layer, and increase the adhesion of the layer (30). Segment (13) (as well as (23)) has a screed strip (133) used to level the finishing layer of putty (30).

FIG. 4 shows the blade attachment unit structure (170) using the first diffuser version (100) as an example, with the second version of the diffuser (200) containing a structurally identical element. The blade attachment unit (170) is placed in the element profile (17) and contains a notch for fixing the cylindrical part of the blade (171), allowing it to rotate in the axial direction to close/open the air flows and adjust their direction.

The cylindrical part of each blade (171, 172, 271, 272) has at least two protrusions (1711-1721) providing a rigid and reliable fixing of the blades in their attachment unit (170) at certain points, which is achieved by stopping each protrusion (1711-1721) at the unit groove (170), preventing arbitrary displacement of the blades. It should be noted that the shape of the cylindrical blade part (171) is given as an example and can be of any other shape, ensuring its reliable installation in the attachment unit (170), as well as the number of protrusions (1711-1721) required for fixing and adjusting the blades.

Arrangement of protrusions (1711-1721) provides increased reliability of blade fixation when changing their position to adjust the air flow, which further improves the effectiveness of the technical result in terms of increasing the overall structure reliability in terms of eliminating the displacement of blades when external loads occur, contributing to a possible displacement of the diffuser.

FIG. 5A-5B show examples of mounting the diffusers (100, 200) in the GPB (30) ceiling. Hollows of segments (11, 12, 22) are also designed to attach profiles (10, 20) to the GPB ceiling using the appropriate fixing elements, which increases the reliability of installation, due to the formation of a single rigid structure with a metal framework of GPB ceiling made, for example, in the form of a ceiling profile (32) to which diffusers (100, 200) are attached using fasteners (such as screws, etc.).

The diffuser (100) is attached through the lower part of the frame segment (12) with metal-working self-tapping screws, fixing it to the metal frames (32) of the GPB ceiling. (31). The vent adapter (33) is attached to the diffuser profile through the segment frame side (11).

The diffuser (200) is attached to the metal frame (32) of the GPB ceiling through the frame side (22). The diffuser (200) is attached to the vent adapter (33) through the upper side of the segment frame (22).

FIG. 6 shows an example of a diffuser (100) (similar design also for the diffuser (200)) with a luminaire (40). Luminaire (40) is attached to the platform (18), made as a solid structure of the profile with a given shape, for example, a trapezoidal. The platform (18) is divided into channels, one of which is a cable channel (181) for wiring connected to the luminaire (40). The platform (18) is attached to the load-carrying bridge (16) forming a single and reliable structure which also allows to fix different types of lights (40), by fixing them to the entire length of the platform (18) with fasteners such as self-tapping screws. In this case, the tightness of the cable channel (181) is increased due to the fact that the luminaire fasteners are fixed (40) into the hollows of adjacent channels leaving the cable channel intact (181).

FIG. 7A presents the result of calculating the air flow dynamics of the claimed diffuser design using an example of a diffuser (100) with the first profile embodiment (10). It should be noted that the test results are similar for the diffuser (200).

As can be seen in FIG. 7A, the presented design of the diffuser (100) at ambient temperature of 28° C. provides an index of at least 21° C. on the outer wall of the profiles (10) of the diffuser (100) due to the hollow frame segment structure, as compared with the local 18° C. of the equivalent presented in FIG. 7B.

The temperature performance achieved significantly reduces the possible condensation on diffuser walls.

FIG. 8A-8B, 9A-9B are examples of slot diffuser models (100, 200). At the upper part, each diffuser (100, 200) contains a decorative perforated metal sheet installed in the grooves (14, 24) of the profiles (10, 20). The end parts of the diffuser (100, 200) are closed with plugs secured by fasteners to the profile grooves (10, 20).

Claims

1. The flush-mount linear slot diffuser profile made of metal in the form of a frame structure consisting of three hollow segment frames and forming its outer and inner walls, with the inner part of the profile formed by the obtuse-angled surface, and the area of space forming cavities in each segment is greater than the area of the frame of the respective segment.

2. Profile according to p. 1, characterized by the fact that the upper part of the profile has a groove on the inner surface for attaching a metal sheet and a ledge for attaching a load-carrying bridge.

3. Profile according to claim 1, characterized by the fact that the lower segment is shaped close to a right-angled triangle.

4. Profile according to claim 1, characterized by the fact that the lower segment contains a finishing element in the form of a profiled surface.

5. Profile according to claim 4, characterized by the fact that the surface profile is made in the form of alternating protrusions and grooves, with the distance between them depending on full groove filling with putty.

6. Profile according to claim 4, characterized by the fact that a locking protrusion is made on one side of the profiled surface.

7. The flush-mount linear slot diffuser profile made of metal in the form of a frame structure consisting of three hollow segment frames and forming its outer and inner walls, with the inner part of the profile formed by the surface with two obtuse angles, and the area of space forming cavities in each segment is greater than the area of the frame of the respective segment.

8. Profile according to p. 1, characterized by the fact that the upper part of the profile has a groove on the inner surface for attaching a metal sheet and a ledge for attaching a load-carrying bridge.

9. Profile according to claim 1, characterized by the fact that the lower segment is shaped close to a right-angled triangle.

10. Profile according to claim 1, characterized by the fact that the lower segment contains a finishing element in the form of a profiled surface.

11. Profile according to claim 4, characterized by the fact that the surface profile is made in the form of alternating protrusions and grooves, with the distance between them depending on full groove filling with putty.

12. Profile according to claim 4, characterized by the fact that a locking protrusion is made on one of the lower sides of the segment.

13. Flush-mounted linear slot diffuser containing two profiles connected by a load-carrying bridge and oriented to each other with their inner according to any of the claims 1-6 or 7-12.

14. Diffuser according to claim 13, characterized by the fact that the load-carrying bridge is attached to the profile ledges.

15. Diffuser according to claim 13, characterized by the fact that the central part of a diffuser contains a blade adjustment element made of a metal profile, with blade mounting units located on its sides, with blades attached to these units.

16. Diffuser according to claim 15, characterized by the fact that each blade contains at least two protrusions on the part securing the blade to the mounting unit.

17. Diffuser according to claim 13, characterized by having end caps.

18. Diffuser according to claim 13, characterized by the central part of a diffuser containing a platform for the luminaire.

19. Diffuser according to claim 18, characterized by the platform made of a trapezoidal profile.

20. Diffuser according to claim 18, characterized by the platform containing a cable channel to accommodate the wiring.