A joint for corner connection of light line profiles of a stretch ceiling

Abstract

The utility model relates to the field of lighting structures intended for installation in suspended ceilings, in particular, to connecting units for light line profiles used in the formation of complex geometric configurations of lighting systems. The technical objective of the utility model is to create a connecting corner unit for suspended ceiling light line profiles that ensures secure fixation during convenient installation. The technical result is an expanded arsenal of connecting units for suspended ceiling light line profiles, ensuring secure fixation of the connected profiles while safely routing the power cables. The problem is solved in that the unit for the angular connection of suspended ceiling light line profiles comprises a housing containing an opening for routing an LED strip with power cables, thickened areas at the points of mating with the profiles, and protruding elements for positioning in the grooves of the profiles.wherein the protruding elements have a length that ensures the possibility of fixing the unit to the profile by means of a fastening element passing through the wall of the profile and entering the body of the protruding element, and in the thickening zones there are openings for accommodating fixing pins that interact with the grooves of the profiles on both sides relative to the plane of the connection, while it is preferable that the lower part of the unit body and the lower part of the thickening zone are made as a single surface without protrusions, which provides a structural gap that ensures the free exit of the supply wires without their pinching during installation of the unit with the profiles, the opening for the output of the LED strip is made closed by a thin-walled jumper with the possibility of removing it during installation, and the structural gap is designed with the possibility of providing a fixed distance from the unit body to the ceiling equal to 1 ... 3 mm, while the thickening zones have a massive structure,and the holes for the pins are located symmetrically relative to the longitudinal axis of the mating profiles, the shape of the unit is selected from the group: triangular, tetrahedral, sector, ring, L-shaped, T-shaped, X-shaped, in addition, the unit is made of plastic (PLA, PETG, ABS, polycarbonate), metal (aluminum or its alloys) or composite material (carbon fiber, fiberglass) using 3D printing, injection molding or mechanical processing. The utility model contains a new set of essential features and expands the arsenal of connecting units for the profiles of light lines of suspended ceilings due to the possibility of reliable fixation at various angles with a protected output of the LED strip and wires. 6 clauses, 5 figs.,

Description

[0001] The utility model relates to the field of lighting structures intended for installation in suspended ceilings, in particular to connecting units of light line profiles used in the formation of complex geometric configurations of lighting systems.

[0002] The prior art includes various devices for connecting profiles used in the installation of light lines in suspended ceilings, as well as profiles and lighting structures designed for the placement of LED strips.

[0003] Profiles for mounting suspended ceilings with a central cavity for placing LED strips are known (patent RU 225233 U1, published on 15.04.2024; patent RU 2839817 C1, published on 12.05.2025; patent RU 173483 U1, published on 29.08.2017), however, they are not intended for connecting profiles to each other at an angle and do not provide a protected outlet for the strip with wires at the junction.

[0004] A known connection unit for a circuit of a system of LED lamps (patent RU 2601291 C1, IPC F21S 4 / 00, published 10 / 27 / 2016), which consists of a crosspiece made with the possibility of its end fastening to an external surface, in the form of a hollow cube with four profiled openings along its lateral sides of at least two end caps with places for their detachable fastening to the cube, seats for electrical connectors, wherein the profile of the internal shelf of which corresponds to the profile of the holes of the cube, and the guide on the other side corresponds to the profile of the housing of the LED lamp with the possibility of their elastic connection, as well as a plug in the form of an end surface with elastic fastening elements in the hole of the cube, with the possibility of fastening the plug to an unoccupied input.

[0005] The disadvantages of the known unit are the closed design of the crosspiece, which is not intended for installation between the profiles of the light lines of the suspended ceiling, does not provide for the connection of profiles at different angles, does not have elements for fixing to the grooves of the profiles and does not provide for the output of the LED strip with power wires at the junction.

[0006] A known unit for connecting profiles of light lines of a stretch ceiling at different angles (patent RU 2856894 C1, IPC E04B 9 / 00, published 02 / 25 / 2026), the closest in technical essence to the claimed utility model, made with the possibility of installation between the profiles to be connected, containing the body of the unit, with at least one through hole, providing the possibility of outputting an LED strip with supplied power wires, wherein each hole is made perpendicular or at an angle to the plane of the unit in which it is located, with a section selected from round, oval, slotted or figured, and is made single or grouped in the presence of several holes, in addition, the design provides for thickenings in the areas of mating with the profile - internal or external, with a ribbed, massive or cellular structure, the edges of the holes are rounded with different radii and are made by machining, casting or 3D printing,and the body contains protruding elements - spikes, ribs, grooves or clamps located on the sides, top or bottom, and its shape is selected from: triangular, tetrahedral, sector, ring, L-, T- or X-shaped, and is made of PLA, PETG, ABS, polycarbonate, aluminum, carbon fiber or fiberglass using 3D printing, casting or milling methods.

[0007] The disadvantages of the known unit are the unreliable fixation of the connected profiles to the body of the unit, the possibility of their mutual displacement during installation and operation cannot be ruled out, and there are no conditions for the safe removal of power wires.

[0008] The technical objective of this utility model is to create a connecting corner unit for the profiles of the light lines of a suspended ceiling, ensuring reliable fixation with convenient installation.

[0009] The technical result is an expansion of the arsenal of connecting units for profiles of suspended ceiling light lines, ensuring reliable fixation of the connected profiles with the safe removal of power wires.

[0010] The problem is solved in that the unit for the angular connection of the profiles of the light lines of the suspended ceiling, contains the body of the unit, in which an opening is made for the output of the LED strip with the power wires, thickening zones in the places of mating with the profiles and protruding elements for positioning in the grooves of the profiles, wherein the protruding elements have a length that ensures the possibility of fixing the unit to the profile by means of a fastening element passing through the wall of the profile and entering the body of the protruding element, and in the thickening zones there are holes made for placing fixing pins interacting with the grooves of the profiles on both sides relative to the plane of the connection, while, preferably, the lower part of the body of the unit and the lower part of the thickening zone are made a single surface without protrusions, which provides a structural gap that ensures the free exit of the power wires without their pinching during the installation of the unit with the profiles,the hole for the LED strip output is made closed by a thin-walled jumper with the possibility of its removal during installation, and the structural gap is designed to provide a fixed distance from the unit body to the ceiling equal to 1 ... 3 mm, while the thickening zones have a massive structure, and the holes for the pins are located symmetrically relative to the longitudinal axis of the mating profiles, the shape of the unit is selected from the group: triangular, tetrahedral, sector, ring, L-shaped, T-shaped, X-shaped, in addition, the unit is made of plastic (PLA, PETG, ABS, polycarbonate), metal (aluminum or its alloys) or composite material (carbon fiber, fiberglass) using 3D printing, injection molding or mechanical processing.

[0011] Protruding elements, long enough to allow the fastener to be inserted through the profile wall directly into the body of the protruding element, allow the unit to be securely fixed relative to the connected profiles. This fixation eliminates the possibility of spontaneous displacement of the unit during operation, increases the structure's resistance to vibration and temperature effects, and eliminates the need for additional fasteners.

[0012] The presence of holes in the thickened areas for the installation of locking pins, which interact with the profile grooves on both sides relative to the connection plane, provides additional fixation against longitudinal and lateral displacement of the assembly. This improves the positioning accuracy of the connected profiles and the resistance of the connection to mechanical loads, and also facilitates alignment of the structure during installation.

[0013] The design of the lower part of the unit body and the lower part of the thickening zone as a single surface without protrusions provides a structural gap for the free exit of supply wires without pinching them when installing the unit with profiles.

[0014] Making the LED strip outlet hole covered by a thin-walled jumper, which can be removed during installation, allows for customization of the hole configuration directly on-site (for example, to suit a specific strip width or number of wires). After removing the jumper, the hole takes on the desired shape, allowing the LED strip and wires to be routed in multiple directions without excessive bending or damaging the insulation.

[0015] The joint can be manufactured in various geometric shapes – triangular, tetrahedral, sectoral, ring-shaped, L-shaped, T-shaped, X-shaped, Y-shaped – depending on the profile configuration and the required connection angle. The material used is heat-resistant plastics (PLA, PETG, ABS, polycarbonate), aluminum alloys, or composite materials (carbon fiber, fiberglass). The joint is manufactured using 3D printing, injection molding, or machining.

[0016] Thus, the combination of the listed essential features ensures reliable fixation of the unit relative to the connected profiles, safe output of power wires, protection of the LED strip from damage and simplifies the installation of light lines of complex configurations.

[0017] The essence of the utility model is illustrated by the drawing.

[0018] Fig. 1 shows a unit for the corner connection of the profiles of the light lines of a stretch ceiling

[0019] As shown in Fig. 1, the unit for angular connection of profiles of light lines of a stretch ceiling comprises a housing 1, realized in the form of a spatial element, the geometry of which corresponds to the configuration of the profiles to be connected. In the housing 1, an opening 2 is made for outputting an LED strip with power wires, wherein the opening 2 is closed by a thin-walled jumper 3 with the possibility of its removal during installation. On the housing of the unit 1, thickening zones 4 are provided, located at the joints with the profiles to be connected, as well as protruding elements 5, intended for positioning in the grooves of the profiles. In the thickening zones 4, openings 6 are made for accommodating fixing pins 7, which, when installing the unit between the profiles, enter the grooves of the profiles from both sides relative to the plane of the connection.

[0020] The unit is installed between the profiles being connected, ensuring their precise alignment at the required angle. If necessary, the cover bridge covering hole 3 for the LED strip outlet is removed before installation. The LED strip with connected power wires is routed through hole 2. Protruding elements 5 are secured with fasteners through the profile wall, and locking pins 7, installed in holes 6 of thickened areas 4, fit into the profile grooves from both sides, preventing displacement. This ensures quick and reliable installation of complex lighting strips without additional adjustment or cutting of the profiles.

[0021] The assembly of the unit is illustrated by examples in Fig. 2-5 and is carried out as follows.

[0022] The installation example according to Fig. 2, 3 is carried out to connect two profiles at a right angle.

[0023] When joining two linear light line profiles at a 90° angle, the assembly is positioned between the profiles 8 and 9 being connected. Protruding elements 5 are inserted into the grooves of the profiles. Fasteners 10 are screwed through the wall of each profile into the body of the protruding elements 5, ensuring a rigid fixation of the assembly. Fixing pins 7 are inserted into holes 6, made in the thickening zones 4, which enter the grooves of the profiles from both sides relative to the connection plane, preventing displacement. Before laying the LED strip, the thin-walled jumper is removed, opening hole 2. LED strips 11 with power cables 12 are passed through hole 2. The cables are brought out through a structural gap 13, which prevents them from being pinched. After this, the stretch ceiling fabric is stretched and secured in the usual manner.

[0024] The installation example according to Fig. 3, 4 is carried out for a Y-shaped connection of three profiles.

[0025] When creating a branched light line, a Y-shaped node is used. Three profiles 13, 14, and 15 are joined to the corresponding sides of the node, inserting the protruding elements (6) into the profile grooves. Fixation is achieved using self-tapping screws 12 through the profile walls into the protruding elements 6, as well as by installing pins 8 into holes 7 in the thickening zones 5. After removing the jumper 4, opening 2 is revealed, which, thanks to the X-shaped configuration, allows the supply wires to be routed in several directions (for example, to the side and straight branches). The wires pass freely through the structural gap 9, preventing damage. Installation is completed by inserting the stretch ceiling panels into the corresponding profile grooves.

[0026] Thus, the utility model contains a new set of essential features and expands the arsenal of connecting units for profiles of light lines of suspended ceilings due to the possibility of reliable fixation at various angles with a protected output of LED strip and wires.

Claims

1. A unit for the angular connection of profiles of light lines of a suspended ceiling, comprising a housing of the unit in which an opening is made for the output of an LED strip with power wires, thickening zones in places of mating with profiles and protruding elements for positioning in the grooves of the profiles, characterized in that the protruding elements have a length that ensures the possibility of fixing the unit to the profile by means of a fastening element passing through the wall of the profile and entering the housing of the protruding element, and in the thickening zones there are holes made for the placement of fixing pins interacting with the grooves of the profiles on both sides relative to the plane of the connection.

2. The unit according to paragraph 1, characterized in that the lower part of the unit body and the lower part of the thickening zone are made as a single surface without protrusions, which provides a structural gap for the free exit of supply wires without pinching them during installation of the unit with profiles.

3. The unit according to paragraph 1, characterized in that the opening for the output of the LED strip is made closed by a thin-walled jumper with the possibility of its removal during installation.

4. The unit according to paragraph 1, characterized in that the structural gap is designed to provide a fixed distance from the unit body to the ceiling, equal to 1-3 mm.

5. The unit according to paragraph 1, characterized in that the thickening zones have a massive structure, and the holes for the pins are located symmetrically relative to the longitudinal axis of the mating profiles.

6. The unit according to item 1, characterized in that the shape of the unit is selected from the group: triangular, tetrahedral, sector, ring, L-shaped, T-shaped, X-shaped, Y-shaped.

7. The unit according to paragraph 1, characterized in that the unit is made of plastic - PLA, PETG, ABS, polycarbonate, metal - aluminum or its alloys, or composite material - carbon fiber, fiberglass, using 3D printing, injection molding or mechanical processing methods.

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