Light-emitting diode (LED) fireproof down lamp
By adopting a long-distance curved fireproof structure in the LED fire downlight, the flames erupt after entering the junction box and then extinguished due to a long distance, the problem of fireproof function failure in the vibrating environment in the existing technology is solved, and efficient Fireproof effect of the whole lamp.
Patent Information
- Application Number
- CN202420090178.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-12
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-01-12
AI Technical Summary
The existing LED fire-proof downlights are prone to failure of fire protection function in vibrating environments, and the air pressure difference formed by the flame expansion gas affects the fire protection effect. It is difficult for existing designs to achieve effective fire protection for the entire lamp.
The long-distance curved fireproof structure is adopted, and the first fire outlet hole and the second fire outlet hole are connected to the light source assembly through the support frame. The flames escape from the shell and enter the junction box. Because the opening of the flames escapes is small and far away, it is extinguished in the middle. Realize fire protection for the entire lamp.
The fireproof effect of the whole lamp is achieved, the overall fireproof performance is high, the product safety is met, and the fireproof ability of the lamp itself is improved by using high melting point metal materials.
Smart Images
Figure CN222459445U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a downlight, and more specifically, to an LED fireproof downlight. Background Art
[0002] LED fireproof downlights are suitable for luxury cruise ship restaurants, passages, and other places on ships that need to meet BO fire protection levels.
[0003] Most of the existing downlight fire prevention methods adopt a cover (fire barrier) behind the whole lamp. Even if the whole lamp is not fireproof, it is difficult for the flame to pass through the cover. Another method is to add fireproof materials (fireproof cotton, etc.) to the product itself to isolate the fire source for fire prevention. However, due to the special environment on the ship (vibration environment), the external cover is easy to be fixed loose, resulting in the failure of the fire prevention function. In addition, when a fire occurs, the lamp burns into ash and falls off, or the radiator (aluminum parts) melts into liquid and flows away. At this time, the fireproof material will be exposed to block the flame, but in a special environment (vibration environment), it will also fall due to vibration, resulting in the failure of the fire prevention function. In addition, the flame will expand the gas inside, forming a pressure difference (internal pressure is greater than external pressure), which will affect the fire prevention function of the cover and the fireproof material; in addition, most fireproof lamps have outlets at the rear of the light source panel and are fixed by metal parts (cable locks). This method is also easy for the open flame to burn the lamp and then escape through the metal stuffing box, causing the fire prevention function to fail; so sometimes these situations are not conducive to the fire prevention design of ship lamps. Utility Model Content
[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an LED fireproof downlight, which can achieve fireproofing of the entire lamp, has high overall fireproofing performance, and meets product safety requirements.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an LED fireproof downlight, comprising a light source assembly, a junction box and a support frame, the junction box being connected to the light source assembly through the support frame, a first fire outlet hole connected to the light source assembly being provided on one side of the support frame, a second fire outlet hole connected to the support frame being provided on the junction box, and a long-distance fire extinguishing space being provided inside the junction box.
[0006] In summary, the utility model has the following beneficial effects: by using the long-distance curved fireproof structure, even if the open flame escapes from the shell and enters the junction box, the flame will be extinguished halfway because the flame escapes from a small opening and a long distance, thus achieving fireproofing of the entire lamp. The overall fireproofing performance is high, and the product safety is met.
[0007] The entire lamp is made of metal with a high melting point (iron, stainless steel, etc.), so that the lamp itself can meet the fire protection requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 This is a schematic diagram of the three-dimensional structure of the LED fireproof downlight;
[0009] Figure 2 It is a cross-sectional view of a fire-resistant downlight;
[0010] Figure 3 It is a schematic diagram of the internal three-dimensional structure of the junction box;
[0011] Figure 4 Schematic diagram of the explosion structure of a fireproof downlight.
[0012] Figure numerals: 1. light source assembly; 11. face ring; 12. lampshade; 13. light source board; 14. anti-glare cover; 15. shell; 2. junction box; 21. first side cover; 22. second side cover; 23. box body; 24. box cover; 3. support frame; 4. first fire outlet; 5. second fire outlet; 6. cable lock; 7. spring. DETAILED DESCRIPTION
[0013] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.
[0014] Reference Figures 1 to 4 As shown, in order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an LED fireproof downlight, comprising a light source assembly 1, a junction box 2 and a support frame 3, the junction box 2 is connected to the light source assembly 1 through the support frame 3, a first fire outlet 4 connected to the light source assembly 1 is arranged on one side of the support frame 3, a second fire outlet 5 connected to the support frame 3 is arranged on the junction box 2, and a long-distance fire extinguishing space is arranged in the junction box 2.
[0015] The design of the utility model utilizes a long-distance fire extinguishing space setting. When a flame occurs in the light source assembly 1, the flame penetrates into the support frame 3 through the shell 15 and the first fire outlet 4 corresponding to the support frame 3. Since the internal space of the support frame 3 is small, the flame then enters the junction box 2 from the support frame 3, and the flame is extinguished by the junction box 2 over a long distance, forming a complete fireproof structure, thereby meeting the fireproof requirements.
[0016] The first fire outlet hole 4 and the second fire outlet hole 5 are respectively arranged on two adjacent sides of the support frame 3 , and a curved channel is formed in the support frame 3 .
[0017] Preferably, the support frame 3 is arranged in a rectangular structure, and the first fire outlet 4 and the second fire outlet 5 are arranged on two adjacent sides of the support frame 3, thereby forming a curved fireproof structure in the support frame 3, further improving the fire extinguishing effect.
[0018] The junction box 2 is provided with a cable lock 6 , and the cable lock 6 and the support frame 3 are respectively arranged at two opposite ends of the junction box 2 .
[0019] A spring piece 7 is installed at one end of the junction box 2 facing the light source assembly 1 .
[0020] The light source assembly 1 includes a face ring 11 , a lampshade 12 , a light source board 13 , an anti-glare cover 14 and a housing 15 . The face ring 11 and the housing 15 together form an installation cavity for installing the lampshade 12 , the light source board 13 and the anti-glare cover 14 .
[0021] The junction box 2 includes a first side cover 21, a second side cover 22, a box body 23 and a box cover 24. The first side cover 21 and the second side cover 22 are welded to two sides of the box body 23 respectively.
[0022] The box cover 24 is detachably mounted on the box body 23 .
[0023] The first side cover 21 and the second side cover 22 are fixed to the box body 23 by spot welding, and the box cover 24 is detachably connected by bolts.
[0024] In addition, the junction box 2 is fixed to the housing 15 by screws, the cable lock 6 is fixed to the junction box 2 by nuts, and the spring piece 7 is fixed to the junction box 2 assembly by screws.
[0025] In summary, this device uses a long-distance curved fireproof structure. Even if an open flame escapes from the housing 15 and enters the junction box 2, the flame will be extinguished halfway because the flame escapes from a small opening and a long distance, thus achieving fireproofing of the entire lamp. The overall fireproofing performance is high, meeting the safety of the product.
[0026] The entire lamp is made of metal with a high melting point (iron, stainless steel, etc.), so that the lamp itself can meet the fire protection requirements.
[0027] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.
Claims
1. An LED fireproof downlight, characterized by: The invention comprises a light source assembly (1), a junction box (2) and a support frame (3); the junction box (2) is connected to the light source assembly (1) via the support frame (3); a first fire outlet (4) connected to the light source assembly (1) is provided on one side of the support frame (3); a second fire outlet (5) connected to the support frame (3) is provided on the junction box (2); and a long-distance fire extinguishing space is provided inside the junction box (2).
2. The LED fireproof downlight according to claim 1, characterized in that: The first fire outlet hole (4) and the second fire outlet hole (5) are respectively arranged on two adjacent sides of the support frame (3), and a curved channel is formed in the support frame (3).
3. The LED fireproof downlight according to claim 1, characterized in that: The junction box (2) is provided with a cable lock (6), and the cable lock (6) and the support frame (3) are respectively arranged at two opposite ends of the junction box (2).
4. The LED fireproof downlight according to claim 1, characterized in that: A spring sheet (7) is installed at one end of the junction box (2) facing the light source assembly (1).
5. The LED fireproof downlight according to any one of claims 1 to 4, characterized in that: The light source assembly (1) comprises a face ring (11), a lampshade (12), a light source board (13), an anti-glare cover (14) and a housing (15); the face ring (11) and the housing (15) together form an installation cavity for installing the lampshade (12), the light source board (13) and the anti-glare cover (14).
6. A fireproof LED downlight according to any one of claims 1 to 4, characterized in that: The junction box (2) comprises a first side cover (21), a second side cover (22), a box body (23) and a box cover (24); the first side cover (21) and the second side cover (22) are respectively welded to two sides of the box body (23); The box cover (24) is detachably mounted on the box body (23).