An embedded sealed lighting fixture

Abstract

This utility model discloses an embedded sealed lighting fixture, belonging to the field of lighting equipment technology, aiming to solve the problems of gas leakage, high energy consumption, and ceiling dampness caused by poor sealing of existing embedded lighting fixtures. The lighting fixture includes an outer frame, a heat sink, a lens, a back cover, and sealing components. It achieves full-path sealing through multi-level sealing: between the outer frame and the ceiling, spring clips cause gaskets to press tightly against the ceiling and cooperate with the outer edge of the outer frame to form an external seal; the outer frame and the heat sink are threaded together, the lens mounting edge overlaps to form a first inner cavity, and the lens is glued to the mounting groove to form a second inner cavity, achieving internal cavity sealing; the back cover fastens and locks the heat sink's sinking structure, and anti-pull teeth clamp the wire to assist in sealing the wire outlet. This utility model improves the sealing performance of the lighting fixture, reduces energy loss, prevents ceiling dampness, and has strong structural adaptability, making it suitable for various scenarios.

Description

Technical Field

[0001] This utility model relates to the field of lighting equipment technology, and in particular to a sealed luminaire that is embedded in the ceiling. It is suitable for scenarios with high requirements for indoor airtightness and can effectively reduce energy waste caused by leakage of hot and cold gases through the gaps in the luminaire. Background Technology

[0002] Recessed lighting fixtures are widely used in ceiling decoration in residential, office, and commercial buildings due to their aesthetic appeal and space-saving features. During installation, they need to be embedded in ceiling openings, with the main body exposed on the interior side and the rear extending into the building's mezzanine above the ceiling. While this structural design improves the cleanliness of the space, it also brings unavoidable sealing challenges.

[0003] The sealing defects of existing recessed lighting fixtures are mainly reflected in three dimensions: First, the installation gap between the outer frame of the fixture and the ceiling opening is difficult to eliminate. Even with simple rubber strips or clips for fixing, air leakage channels can easily form due to installation errors, material aging, or loosening after long-term use, causing indoor hot and cold air to leak into the ceiling. Second, the internal structure lacks a systematic sealing design. The connection between the outer frame and the heat sink mostly relies on clips or basic screw connections, and the cooperation between the lens and the heat sink is only a mechanical overlap, creating an airflow path between the internal cavity and the outside. Third, traditional sealing methods are simple, mostly relying on a single rubber ring, which is prone to local failure due to high-temperature aging, uneven installation, and other problems, and cannot cover multiple leakage points such as installation gaps, internal component connections, and wire outlets.

[0004] These defects directly trigger a chain of problems: indoor temperature control equipment needs to operate under high load to maintain the temperature, resulting in significant energy loss; condensation easily forms inside the ceiling due to the alternation of hot and cold air, leading to dampness and mold growth; unstable indoor temperature and humidity also reduce living comfort and increase equipment maintenance costs. Currently, most industry solutions focus on thickening or increasing the strength of individual seals, failing to build a comprehensive sealing system and thus unable to fundamentally solve the multi-path leakage problem. Therefore, developing an embedded lighting fixture that can achieve multi-level, full-path sealing is key to addressing these pain points. Utility Model Content

[0005] The purpose of this invention is to solve the problem of indoor gas leakage caused by poor sealing of existing recessed lighting fixtures. Through multi-layer structure and synergistic sealing, the invention achieves all-round sealing between the lighting fixture and the ceiling, the internal cavity of the lighting fixture and the wire interface, thereby reducing energy consumption.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] An embedded sealed luminaire includes an outer frame, a heat sink, a lens, a rear cover, and a sealing assembly. The outer frame is used to mate with an opening in the ceiling. The sealing assembly includes a spring clip and a gasket. The spring clip is connected to the outer frame, and the gasket is disposed at the contact point between the outer frame and the ceiling. The elastic force of the spring clip causes the outer frame to press tightly against the ceiling through the gasket to block the flow of air at the contact point. The outer frame and the heat sink are fixed together by a sealing connection structure. The lens is disposed between the outer frame and the heat sink and is sealed to both. The rear cover is sealed to the heat sink to block the flow of air between the internal cavity of the luminaire and the interior of the ceiling.

[0008] Furthermore, the outer frame is provided with a sealing groove, the gasket is installed in the sealing groove, the inner side of the gasket abuts against the sealing groove, the outer side of the gasket abuts against the ceiling, and the elastic force of the spring clip can make the outer side of the gasket press tightly against the ceiling and deform.

[0009] Furthermore, the sealing connection structure is a mating threaded connection structure, including an external thread surrounding the periphery of the outer frame and an internal thread surrounding the inner side of the radiator. After the outer frame and the radiator are tightened together by the threads, the outer frame presses firmly against the lens.

[0010] Furthermore, the radiator is provided with a circular mounting groove, the lens is provided with a mounting edge, the inner side of the mounting edge overlaps the outer wall of the mounting groove, the outer side of the mounting edge overlaps with the inner side of the outer frame, and the outer wall of the mounting groove and the inner wall of the radiator enclose to form a first inner cavity.

[0011] Furthermore, the lens is sealed to the inner wall of the circular mounting groove with adhesive to form a second inner cavity, which blocks the airflow between the second inner cavity and the first inner cavity and the outside of the outer frame.

[0012] Furthermore, the rear cover is a U-shaped cover, and the radiator is provided with a sinking structure. The U-shaped cover can be fastened to the sinking structure and sealed by screws.

[0013] Furthermore, the back cover and the radiator are respectively provided with anti-pull teeth on their respective sides. The back cover has double rows of anti-pull teeth, and the radiator has single rows of anti-pull teeth. The double rows of anti-pull teeth and the single rows of anti-pull teeth are staggered to form an alternating clamping path, which is used to prevent the wires passing through the radiator outlet from being pulled and fixed.

[0014] Furthermore, the distal end of the spring clip presses against the ceiling under the action of elastic force, thereby driving the outer frame to press tightly towards the ceiling.

[0015] Furthermore, the lens has a circular structure and is adapted to the circular mounting groove.

[0016] Furthermore, the outer edge of the outer frame can fit against the ceiling after the gasket deforms.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] Multi-level sealing with excellent airtightness: From the contact seal between the outer frame and the ceiling, the thread seal between the outer frame and the radiator, to the glue seal between the lens and the mounting groove, and then to the snap-fit ​​seal between the rear cover and the radiator, a three-level sealing system of "outer-inner-rear" is formed to completely block the air leakage path.

[0019] High structural adaptability: Each component fits precisely through its shape and connection method, eliminating the need for additional complex seals and balancing sealing performance with ease of installation.

[0020] Functional integration: The spring clip achieves both clamping and fixing, while the anti-pull teeth simultaneously fix the wire and seal the outlet, simplifying the overall structure and reducing costs.

[0021] Significant energy-saving effect: effectively prevents leakage of indoor cold and warm air, reduces energy consumption of air conditioning and heating equipment, and is suitable for various scenarios such as residences and offices. Attached Figure Description

[0022] Figure 1 is a schematic diagram of the present invention assembled on the ceiling.

[0023] Figure 2 is a schematic diagram of the exploded structure of this utility model;

[0024] Figures 3 and 4 are schematic diagrams showing the fit between the gasket of this utility model and the outer frame and ceiling.

[0025] Figure 5 is a schematic diagram of the connection structure between the outer frame, lens and heat sink of this utility model;

[0026] Figure 6 is a schematic diagram of the threaded connection and internal cavity structure of the outer frame, lens and heat sink of this utility model;

[0027] Figure 7 is a schematic diagram of the snap-fit ​​sealing between the rear cover and the radiator of this utility model;

[0028] Figure 8 is an exploded structural diagram of the rear cover and radiator of this utility model.

[0029] Figure 9 is a structural schematic diagram of the back cover of this utility model;

[0030] Figure 10 is a schematic diagram of the misalignment distribution and clamping path of the anti-pull teeth of this utility model. Detailed Implementation

[0031] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] like Figure 1-10 As shown, an embedded sealed luminaire includes an outer frame 1, a heat sink 4, a lens 3, a rear cover 6, and a sealing assembly; the sealing assembly includes a spring clip 5 and a gasket 2, and the connection and sealing structure of each component are as follows:

[0036] The outer frame 1 is used to fit with the ceiling opening. It has a sealing groove on its edge. The gasket 2 is installed in the sealing groove, and the inner side 22 of the gasket 2 abuts against the sealing groove and the outer side 21 abuts against the ceiling. The spring clip 5 is connected to the outer frame 1. Its far end presses against the ceiling under the action of elasticity, which drives the outer frame 1 to press tightly against the ceiling through the gasket 2, causing the gasket 2 to deform. At the same time, the outer side 11 of the outer frame 1 fits against the ceiling, blocking the flow of air at the contact point between the two.

[0037] The outer frame 1 and the radiator 4 are fixed by a threaded connection structure: the outer frame 1 has an external thread 12 around its perimeter, and the radiator 4 has an internal thread 41 on its inner side. After the two are tightened, the outer frame 1 presses the lens 3 tightly. The radiator 4 has a circular mounting groove. The lens 3 has a circular structure and fits the mounting groove. Its edge has a mounting edge. The inner side 32 of the mounting edge overlaps the outer wall 42 of the mounting groove. The outer side 31 of the mounting edge overlaps with the inner side 13 of the outer frame. The outer wall 42 of the mounting groove and the inner wall of the radiator 4 enclose each other to form a first inner cavity.

[0038] Lens 3 is sealed to the inner wall of the circular mounting groove with glue to form an independent second inner cavity, which completely blocks the air flow between the second inner cavity and the first inner cavity and the outside of the outer frame 1.

[0039] The rear cover 6 is a U-shaped cover, and the radiator 4 is provided with a sinking structure 45. The U-shaped cover is fastened to the sinking structure 45 and sealed by screws to block the airflow between the second inner cavity and the ceiling. The rear cover 6 and the radiator 4 are respectively provided with anti-pull teeth on their respective sides. The rear cover 6 has double rows of anti-pull teeth 61, and the radiator 4 has single rows of anti-pull teeth 43. The two are staggered to form an alternating clamping path to prevent the wires passing through the radiator outlet 44 from being pulled and to fix them, while also helping to seal the outlet.

[0040] Specifically, the assembly process of this utility model is as follows:

[0041] Insert the gasket 2 into the sealing groove on the edge of the outer frame 1, ensuring that the inner side 22 of the gasket is completely in contact with the inner wall of the sealing groove, and the outer side 21 of the gasket faces outward (to the side that will contact the ceiling).

[0042] Fix the spring clip 5 to the preset connection position of the outer frame 1, so that the far end of the spring clip 5 extends outward, ensuring that it has elastic force towards the ceiling in its natural state.

[0043] Align the lens 3 (circular structure) with the circular mounting groove of the heat sink 4, so that the inner side 32 of the mounting edge of the lens 3 rests on the outer wall 42 of the mounting groove. Apply sealant evenly along the inner wall of the mounting groove to bond and fix the lens 3 to the inner wall of the mounting groove. After the sealant cures, a second inner cavity is formed.

[0044] Align the external thread 12 of the outer frame 1 with the internal thread 41 of the radiator 4, and rotate the outer frame 1 until it is tightened. At this time, the inner side 13 of the outer frame presses against the outer side 31 of the mounting edge of the lens 3, and the outer wall 42 of the mounting groove and the inner wall of the radiator 4 enclose each other to form the first inner cavity.

[0045] Pass the wire through the outlet 44 of the radiator 4, and fasten the back cover 6 (U-shaped cover) to the sinking structure 45 of the radiator 4, so that the double row of anti-pull teeth 61 of the back cover 6 and the single row of anti-pull teeth 43 of the radiator 4 are misaligned and aligned to clamp the wire and form an anti-pull fixation. Finally, use screws to lock the back cover 6 and the radiator 4 to complete the end seal.

[0046] The specific installation process is as follows:

[0047] Align the assembled light fixture with the ceiling opening, align the outer edge 11 of the outer frame with the edge of the ceiling opening, and push the light fixture into the opening to the preset position.

[0048] The distal end of the spring clip 5 presses against the inner side of the ceiling under the action of elastic force, causing the outer frame 1 to press tightly towards the ceiling, so that the outer side 21 of the gasket 2 deforms due to force and presses tightly against the ceiling. At the same time, the outer side 11 of the outer frame adheres to the ceiling surface, completing the external installation and sealing.

[0049] After installation, check whether the outer frame 1 is tightly fitted to the ceiling and whether the gasket 2 deforms evenly. Confirm that the back cover 6 and the radiator 4 are not loose and ensure that all sealing paths are effectively closed.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0051] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An embedded recessed luminaire, characterized by, The light fixture includes an outer frame, a heat sink, a lens, a rear cover, and a sealing assembly. The outer frame is used to mate with an opening in the ceiling. The sealing assembly includes a spring clip and a gasket. The spring clip is connected to the outer frame, and the gasket is located at the contact point between the outer frame and the ceiling. The spring force of the spring clip causes the outer frame to press tightly against the ceiling through the gasket to block the flow of air at the contact point. The outer frame and the heat sink are fixed together by a sealing connection structure. The lens is located between the outer frame and the heat sink and is sealed to both. The rear cover is sealed to the heat sink to block the flow of air between the internal cavity of the light fixture and the ceiling.

2. The recessed canned luminaire of claim 1, wherein, The outer frame is provided with a sealing groove, and the gasket is installed in the sealing groove. The inner side of the gasket abuts against the sealing groove, and the outer side of the gasket abuts against the ceiling. The elastic force of the spring clip can make the outer side of the gasket press tightly against the ceiling and deform.

3. The recessed can light of claim 1, wherein, The sealing connection structure is a mating threaded connection structure, including an external thread surrounding the outer frame and an internal thread surrounding the radiator. After the outer frame and the radiator are tightened together by the threads, the outer frame presses firmly against the lens.

4. The recessed can light of claim 3, wherein, The radiator is provided with a circular mounting groove, and the lens is provided with a mounting edge. The inner side of the mounting edge overlaps the outer wall of the mounting groove, and the outer side of the mounting edge overlaps with the inner side of the outer frame. The outer wall of the mounting groove and the inner wall of the radiator enclose each other to form a first inner cavity.

5. The recessed, sealed luminaire of claim 4, wherein, The lens is sealed to the inner wall of the circular mounting groove with glue to form a second inner cavity, which blocks the airflow between the second inner cavity and the first inner cavity and the outside of the outer frame.

6. The recessed can light of claim 1, wherein, The rear cover is a U-shaped cover, and the radiator has a sinking structure. The U-shaped cover can be fastened to the sinking structure and sealed by screws.

7. The recessed can light of claim 6, wherein, The back cover and the radiator are respectively provided with anti-pull teeth on their respective sides. The back cover has double rows of anti-pull teeth, and the radiator has single rows of anti-pull teeth. The double rows of anti-pull teeth and the single rows of anti-pull teeth are staggered to form an alternating clamping path, which is used to prevent the wires passing through the radiator outlet from being pulled and fixed.

8. The recessed can light of claim 1, wherein, The distal end of the spring clip presses against the ceiling under the action of elastic force, thereby driving the outer frame to press tightly towards the ceiling.

9. The recessed can light of claim 4, wherein, The lens has a circular structure and is adapted to the circular mounting groove.

10. The recessed can light of claim 1, wherein, The outer edge of the outer frame can fit against the ceiling after the gasket deforms.

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