Mounting profile for a hidden light line with a curved reflector and mounting beacon shelves

Abstract

This utility model relates to building structures and lighting equipment, specifically mounting profiles for concealed installation of linear light sources in plasterboard walls and ceilings. The profile comprises an elongated base and two opposing side walls forming a longitudinal channel for accommodating an LED strip. The base includes a reflective section in the form of an arc with a radius of 40-110 mm, positioned at an angle of 45-75° to the plane of the base. Mounting beacons are located on the lower edge of the walls, aligned with the cladding and designed for applying a finishing mixture. The side shelves are equipped with a rough surface to improve adhesion to the finish. Protrusions are provided for installing a removable diffuser, heat dissipation elements, and connecting multiple sections. The profile can be manufactured using aluminum alloy extrusion.

Description

[0001] Technical field

[0002] This utility model relates to building structures and lighting technology, specifically to mounting profiles for concealed installation of linear light sources (LED strips and similar LED modules) in ceilings and walls. The most common application is gypsum plasterboard (GKL) structures, where a flush-mounted luminous line is required. According to the IPC classification, this solution can be classified under E04F 19 / 00 (finishing components) and F21V 7 / 00 (reflectors in lighting fixtures).

[0003] Technology Level

[0004] There are a number of technical solutions designed for hidden installation of linear light sources (LED strips) in interiors, including in plasterboard ceilings and walls.

[0005] For example, RU187024 U1 describes a U-shaped profile for installing LED strips in suspended ceilings. Its drawbacks include its lack of compatibility with plasterboard structures and the absence of a reflective element to redistribute the light.

[0006] Profile RU230685 U1 has angled walls and is designed for suspended ceilings. However, it does not include the mounting beacon shelves that allow the finishing to be flush with the cladding. It also lacks a curved reflective surface to diffuse light.

[0007] Commercial solutions from manufacturers such as Arlight, Kraab, and LumFer include profiles for concealed lighting, but typically have straight or simply angled walls that do not accommodate the reflector's intended curved geometry. Mounting flanges often require additional overlays or manual finishing with putty.

[0008] Based on the results of an international patent search (Espacenet, Google Patents), the following documents were considered among the analogues:

[0009] US9951915B2 is a luminaire for installation in plasterboard structures, however, the reflector is not made in the form of an arc and is not integrated into the profile, there are no mounting beacon shelves and textured areas;

[0010] DE112012002410T5 - a reflective structure with a radiator, but does not contain a geometrically defined reflective section in the form of an arc with a certain radius;

[0011] US6641284B2 - a luminaire design with a reflector and heat sink, but is not suitable for concealed installation in plasterboard and does not contain guide shelves for putty.

[0012] Thus, none of the known solutions presents the combination of the following features:

[0013] mounting beacon shelves, combined with the cladding plane and designed for the targeted application of putty;

[0014] curvilinear reflective surface, made in the form of a single arc with a radius of 40-110 mm at an angle of 45-75° to the base plane;

[0015] side shelves (ears), equipped with a textured surface to improve adhesion to finishing materials.

[0016] The proposed technical solution eliminates the above-mentioned shortcomings and is an original integral design that ensures precise installation in plasterboard structures, improved light distribution and reliable fixation of the finishing without additional devices.

[0017] Technical task and essence of the utility model

[0018] Technical task

[0019] The technical problem, which the claimed utility model is aimed at solving, is the creation of a mounting profile for the hidden installation of a linear light source (LED strip) in ceiling and wall structures, primarily made of plasterboard sheets, ensuring uniform light distribution due to the targeted redistribution of the luminous flux.

[0020] Technical result

[0021] The technical result of the utility model consists in creating a mounting profile for a hidden light line, designed to obtain uniform light distribution by redistributing the light flux by a continuous arc-shaped reflective surface made at the base of the profile with a radius of 40 to 110 mm and located at an angle of 45° to 75° to the plane of the base.

[0022] The essence of the utility model

[0023] The essence of the utility model is that the mounting profile comprises an elongated base and two opposite side walls, which together form a longitudinal channel for accommodating an LED strip. The base of the profile contains a reflective section in the form of a continuous arcuate surface with a radius of preferably 50-80 mm (within the range of 40-110 mm), oriented at an angle of preferably 55-70° (within the range of 45-75°) to the plane of the base, ensuring uniform redistribution of the luminous flux and eliminating excessive localized brightness.

[0024] In certain embodiments of the utility model, to improve the ease of profile installation in plasterboard structures, a horizontal projection is provided on the lower edge of each side wall, forming a mounting beacon shelf, designed to align with the facing sheets and simplify puttying. Perpendicular to the mounting beacon shelves, side shelves (ears) are located, extending from the base, which can be provided with ribbing, microtexture, or another rough structure to improve the adhesion of the finishing mixture. Matching projections can be made on the free edges of the side walls, forming a groove for a removable light-diffusing screen. The base can be equipped with at least one radiator fin to dissipate heat from the LED strip located inside the channel. Coaxial holes with a diameter of 1 to 6 mm can be made on the end sections of the base for joining adjacent profile sections.

[0025] The specified particular cases of the implementation of the utility model characterize additional conveniences of its installation and operation, without changing the essence of the technical solution and the declared technical result.

[0026] Justification of the range of the radius of the reflective area

[0027] In the claimed utility model, the reflective base section is designed as an arcuate surface with a radius of 40 to 110 mm, oriented at an angle of 45-75° to the plane of the base. This radius range was selected based on technical and ergonomic installation constraints, as well as the desired light distribution effect.

[0028] The lower limit (40 mm) is due to the fact that at smaller radii the reflector becomes excessively steep (almost semicircular), which:

[0029] dramatically reduces the working depth of the channel for LED strip;

[0030] creates problems with the placement of the diffuser;

[0031] results in localized flare with a sharp light spot and glare because the reflector becomes too narrow and "closed".

[0032] The upper limit (110 mm) is set taking into account that with an increase in radius:

[0033] the profile is significantly thicker in height, which worsens its integration into plasterboard structures of standard thickness (especially in ceilings);

[0034] The reflective effect becomes less pronounced - the light is distributed too diffusely and "flatly", the directionality of the flow decreases;

[0035] It is difficult to form an aesthetic, "thin" light spot on a wall or ceiling.

[0036] Thus, the 40-110 mm range is technically justified and covers all practically feasible options for installation in standard plasterboard structures without increasing the depth of the niche and without deteriorating the light effect.

[0037] Justification of the range of angle of the reflective area

[0038] The reflective base section is oriented at an angle of 45° to 75° relative to the base plane. This range was selected based on optical efficiency, profile geometry, and installation technology in ceiling and wall plasterboard structures.

[0039] The lower limit (45°) reflects the minimum acceptable angle at which the reflective arc can still deflect the light into the room. If the angle is less than 45°, the reflective section becomes too flat, and the light:

[0040] is directed into the plane of the base or even into the depth of the structure;

[0041] is not redistributed outward, but is lost in the body;

[0042] Backlight zones appear along the drywall seam, which impairs the visual perception of the line.

[0043] The upper limit (75°) defines the maximum allowable angle before design limitations are reached. For angles greater than 75°:

[0044] The reflective area becomes almost vertical, which greatly reduces its reflectivity;

[0045] A sharp shadow gradient effect occurs, which disrupts the uniformity of the backlight;

[0046] in the ceiling version - the efficiency of heat dissipation is reduced, since the heat is concentrated under the vertical wall, and not distributed over the curved surface.

[0047] Within the range of 45°-75° reflective area:

[0048] provides optimal deflection of light flux into the room;

[0049] Forms a soft, uniform light line without blinding strip;

[0050] maintains geometric compatibility with gypsum boards without requiring thickening of the structure.

[0051] Rationale for the use of roughness / texture on side shelves

[0052] The side shelves (called "ears") are equipped with areas of ribbed, microtextured, or otherwise roughened surfaces. This feature is intended to improve the adhesion of finishing materials (in particular, putty) to the metal profile and ensure a long-lasting finish without peeling.

[0053] Unlike a smooth aluminum surface, which does not hold putty well under thermal expansion or vibration loads, the presence of a textured zone:

[0054] increases the contact area between the putty and the profile;

[0055] promotes mechanical adhesion of putty to the microrelief;

[0056] prevents the formation of cracks and delamination along the line where the profile adjoins the drywall.

[0057] The texture is located on the side shelves (and not across the entire surface of the profile):

[0058] does not interfere with the installation of LED strip, diffuser and other elements;

[0059] is aimed precisely at the area where the putty contacts the metal.

[0060] Thus, the presence of a textured area on the side shelves provides a technical effect in the form of increased reliability and durability of the finishing layer, reduces the risk of repeated repairs and contributes to the stable appearance of the decorative lighting.

[0061] Justification of the design of mounting beacon shelves

[0062] The profile design includes mounting beacons, designed as horizontal projections perpendicular to the side shelves (ears) extending from the base. These shelves are located in the plane of the cladding and are designed to align with the outer surface of the drywall and to form an even layer of putty.

[0063] Unlike solutions where the profile is installed using additional guides or manually fixed into the opening, mounting beacon shelves allow you to:

[0064] rigidly set the installation depth, eliminating the need for measurements or spacers;

[0065] Use the profile structure itself as a linear guide when applying putty;

[0066] ensure clear alignment of the profile level with the cladding level along the entire length;

[0067] obtain a finishing surface without differences in plane, with high installation speed.

[0068] The beacon shelves are aligned strictly with the cladding and, unlike mounting "ears," do not protrude beyond the design thickness of the structure. This ensures that they do not interfere with the installation of adjacent elements (e.g., other profiles, lighting fixtures, ventilation grilles, etc.).

[0069] Thus, the mounting beacon shelves provide:

[0070] geometric installation accuracy.

[0071] Convenience for finishing.

[0072] elimination of leveling operations at the junction of drywall and profile.

[0073] Brief description of drawings

[0074] Fig. 1 - cross-section of the profile with elements of the fastening and fixation system.

[0075] 1. Base - the longitudinal supporting part of the profile to which the remaining elements are attached.

[0076] 2. Reflective wall - a curved surface that forms a vaulted niche for the light flow.

[0077] 3. Short base shelf - lower left horizontal support.

[0078] 4. Base wall - the right vertical part of the base, forming the inner contour of the U-shaped cavity.

[0079] 5. Long base shelf (curved) - an elongated arc-shaped part that forms the upper arch and serves as a base for gluing the LED strip.

[0080] 6. Diffuser fixing elements - a groove / lock located on both sides of the niche for fastening the diffuser (screen).

[0081] 7. Light-diffusing screen - installed between elements 6.

[0082] 16. Side shelves (ears) - protruding horizontal sections of the base, located on both sides.

[0083] 17. Groove for self-tapping screws - recesses for fastening to the ceiling or CD profile.

[0084] 18. Beacon shelves - guide protrusions that facilitate the alignment of the putty plane.

[0085] 19. Roughness - functional zones with microtexture that enhances adhesion to external coatings.

[0086] 20. Roughness - areas of increased adhesion for putty.

[0087] Fig. 2 - perspective view of the profile with a radiator and joints

[0088] 8. Radiator - a system of fins on the inner side of the curved wall to dissipate heat from the LED strip.

[0089] 9. Profile connection points - end holes or recesses intended for connection with dowels / nails or hidden mounting.

[0090] Fig. 3 - perspective view of corner joint.

[0091] 10. LED strip - placed in a groove on the inner side of the profile.

[0092] 11. Dowel nail - a connecting element for joining two sections of a profile.

[0093] Fig. 4 - diagram of installation of profile with CD-frame.

[0094] 12. Self-tapping screw - a standard fastener that secures the profile to the frame.

[0095] 13. CD profile - element of the ceiling frame.

[0096] 14. A layer of putty - applied over the beacon shelves for leveling.

[0097] Fig. 5 - view of the corner connection of the profile at 45°.

[0098] 15. 45° joint angle - achieved by undercutting the profile ends, ensuring precise corner fit.

[0099] Examples of the implementation of the utility model (installation)

[0100] Below are the main steps for installing a profile into a ceiling (horizontal installation), wall installation (vertical installation), and joining multiple sections into a single line. All numerical positions (1-20) are explained at the end of this section.

[0101] Installing a profile in the ceiling

[0102] 1. Preparing the opening: mark and cut out a window in the plasterboard sheet according to the width of the profile base (1) or between the edges of the side shelves (ears) (16).

[0103] 2. Profile installation: insert from the bottom up, the side shelves (ears) (16) rest against the back side of the gypsum board, and the beacon shelves (18) coincide with the outer plane.

[0104] 3. Fixing: Self-tapping screws (12) are inserted through the self-tapping screw grooves (17) into the CD-profile (13) or the ceiling. Profile connecting units (9) are not used in this case (they are only needed for joining the segments).

[0105] 4. LED strip installation (10): stick the strip into the long (curved) base shelf (5) inside the cavity, supply power.

[0106] 5. Installing the diffuser (7): snap it into the diffuser fixing elements (6) until it is flush with the ceiling.

[0107] 6. Filling (14): Fill the gap around the profile using the guide rails (18). After drying, the surface is smooth and the backlight strip is flush.

[0108] Installing a profile into a wall (vertical installation)

[0109] 1. Mark an opening of the required width in the plasterboard sheet on the wall.

[0110] 2. Insert the profile, screw it with self-tapping screws (12) through the grooves for self-tapping screws (17) to the CD-profile posts (13) or to the capital base (with dowels).

[0111] 3. Install the LED strip (10), check it, and cover it with a diffuser (7).

[0112] 4. Putty (14), using the beacon shelves (18) as guides.

[0113] Joining two segments into a single line

[0114] 1. The ends of the base (1) have coaxial joints (9). A dowel nail (11) is inserted into them to align the sections.

[0115] 2. Move the profiles "butt to butt" and fix them to the frame with self-tapping screws (12).

[0116] 3. The diffuser (7) is placed end-to-end, creating an even, continuous strip of light. If necessary, the ends of the profile are cut at a 45° joining angle (15) (e.g., 45°).

[0117] Industrial applicability

[0118] The claimed utility model can be mass-produced on standard extrusion equipment (for example, from aluminum alloy), confirming its industrial applicability. It is intended for wide use in construction and interior design (offices, residential spaces, public areas).

[0119] List of items (1-20)

[0120] 1. Base - the longitudinal supporting part of the profile to which the remaining elements are attached.

[0121] 2. Reflective wall - a curved surface that forms a vaulted niche for the light flow.

[0122] 3. Short base shelf - lower left horizontal support.

[0123] 4. Base wall - the right vertical part of the base, forming the inner contour of the U-shaped cavity.

[0124] 5. Long base shelf (curved) - an elongated arc-shaped part that forms the upper arch and serves as a base for gluing the LED strip.

[0125] 6. Diffuser fixing elements - a groove / lock located on both sides of the niche for fastening the diffuser (screen).

[0126] 7. Light-diffusing screen - installed between elements 6.

[0127] 8. Radiator - a system of fins on the inner side of the curved wall to dissipate heat from the LED strip.

[0128] 9. Profile joints - end holes or recesses intended for connection with dowels / nails or hidden mounting.

[0129] 10. LED strip - placed in a groove on the inner side of the profile.

[0130] 11. Dowel nail - a connecting element for joining two profile sections.

[0131] 12. Self-tapping screw - a standard fastener that fixes the profile to the frame.

[0132] 13. CD profile - element of the ceiling frame.

[0133] 14. A layer of putty - applied over the beacon shelves for leveling.

[0134] 15. 45° joint angle - achieved by undercutting the profile ends, ensuring precise fitting at the corner.

[0135] 16. Side shelves (ears) - protruding horizontal sections of the base, located on both sides.

[0136] 17. Groove for self-tapping screws - recesses for fastening to the ceiling or CD profile.

[0137] 18. Beacon shelves - guide protrusions that facilitate the alignment of the putty plane.

[0138] 19. Roughness - functional zones with microtexture that enhances adhesion to external coatings.

[0139] 20. Roughness - areas of increased adhesion for putty.

Claims

1. A mounting profile for a hidden light line, comprising an elongated base and two opposite side walls, which together form a longitudinal channel for accommodating a light source, characterized in that the base has a reflective section in the form of a continuous arc-shaped surface with a radius of 40 to 110 mm, located at an angle of 45° to 75° to the plane of the base, designed to redistribute the light flux.

2. The profile according to paragraph 1, characterized in that a horizontal projection is made on the lower edge of each side wall, forming a mounting beacon shelf, intended for alignment with the facing sheets and simplifying puttying.

3. The profile according to paragraph 2, characterized in that side shelves (ears) are located perpendicular to the mounting beacon shelves, extending from the base and provided with corrugation, microtexture or roughness.

4. The profile according to item 1, characterized in that the free edges of the side walls are provided with corresponding projections that form a groove for a removable light-diffusing screen.

5. The profile according to item 1, characterized in that the base is provided with at least one radiator fin for removing heat from the LED strip located inside the channel.

6. The profile according to paragraph 1, characterized in that coaxial holes with a diameter of 1 to 6 mm are made on the end sections of the base for joining adjacent sections of the profile.

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