Side light-emitting fireproof down lamp

Abstract

The utility model discloses a side luminous fireproof down lamp, which overcomes the problems of poor fireproof performance, poor protection grade and uneven light source distribution of down lamps in the prior art, and comprises a surface ring, a lamp strip is arranged on the inner wall of the surface ring, a light diffusion structure is arranged on the lamp strip, fireproof expansion foam is arranged on the light diffusion structure, and the fireproof expansion foam is arranged on the surface ring. A fireproof back plate is arranged on the fireproof expansion foam, and a dimming structure is arranged on the outer side of the fireproof back plate and connected with the light bar. A front fire source can be prevented from being led to the rear part, so that the whole down lamp achieves a fireproof effect, the light source is uniformly distributed, and more space is saved for installation by adopting an ultrathin design scheme; the color temperature and the power of the light bar can be adjusted, and various use requirements of customers are met.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting fixtures, and particularly relates to a side-emitting fireproof downlight. Background Technique

[0002] A downlight refers to a lighting fixture with a screw base lamp holder that can directly install an incandescent lamp or an energy-saving lamp and then be embedded into the ceiling for downward light projection. This recessed lamp installed inside the ceiling has all the light projected downward, belonging to direct light distribution. Currently, people usually choose downlights as lighting equipment for daily decoration. Downlights have the advantages of easy installation, beautiful appearance, and good overall coordination.

[0003] However, the existing downlights have a single function and often have problems such as poor fireproof performance, poor protection level, and uneven light source distribution, which bring inconvenience to people's lives. Therefore, it is imperative to design a fireproof downlight with a high protection level to meet the needs of users. Summary of the Invention

[0004] The purpose of the utility model is to overcome the problems of poor fireproof performance, poor protection level, and uneven light source distribution of downlights in the prior art, and provides a side-emitting fireproof downlight, which can block the front fire source from reaching the rear, enabling the entire downlight to achieve a fireproof effect, with uniform light source distribution, adopting an ultra-thin design scheme to save more space for installation; and can adjust the color temperature and power of the light strip to meet various usage requirements of customers.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A side-emitting fireproof downlight, comprising: a face ring, a light strip is provided on the inner wall of the face ring, a light diffusing structure is installed on the light strip, a fireproof expansion foam is provided on the light diffusing structure, a fireproof back plate is provided on the fireproof expansion foam, a dimming structure is provided outside the fireproof back plate, and the dimming structure is connected to the light strip.

[0007] The face ring and the fireproof back plate are fixed by fixing screws, and at the same time, a fireproof expansion foam is installed inside the fireproof back plate, which helps with the fireproof of the entire downlight. The fireproof back plate also provides the final barrier for the fireproof of the entire downlight, which can block the front fire source from reaching the rear, enabling the entire downlight to achieve a fireproof effect. The downlight has an external driver and adopts an ultra-thin design scheme to save more space for installation. At the same time, a dimming structure is set up to adjust the color temperature and power of the light strip to meet various usage requirements of customers. A light diffusing structure is set up to adjust the light emitted by the light strip to ensure the uniformity of the light.

[0008] Preferably, a waterproof groove is provided on the face ring, and a waterproof silica gel ring is installed on the waterproof groove.

[0009] The front ring is provided with a fixing groove for fixing and placing a waterproof silicone ring, enabling the front of the entire lamp to reach the IP65 waterproof rating.

[0010] Preferably, the dimming structure includes a color palette DIP switch box, which is connected to a drive box, and the drive box is provided with a DIP switch.

[0011] A color palette DIP switch box is provided, allowing customers to adjust the color temperature.

[0012] Preferably, the dimming structure includes a power cord, which is fixed to the fireproof backboard through a wire clip, and the power cord is connected to the color palette DIP switch box.

[0013] Preferably, the light diffusion structure includes a diffusion plate installed on the lamp strip, a light guide plate installed on the diffusion plate, and a reflective paper installed on the light guide plate.

[0014] Preferably, it further includes mounting springs, which are symmetrically installed on the front ring.

[0015] Preferably, the color palette DIP switch box and the drive box are connected through DC male and female terminals.

[0016] Preferably, the diffusion plate is made of V0 flame-retardant PC material.

[0017] Preferably, the lamp strip is pasted on the inner wall of the front ring through thermal conductive adhesive.

[0018] Therefore, the present utility model has the following beneficial effects:

[0019] 1. The lamp strip is pasted on the inner wall of the front ring through a thermal conductive tape, and the diffusion plate, light guide plate, reflective paper, and foam are placed in sequence. Among them, the diffusion plate is made of V0 flame-retardant PC material, and the foam is made of fireproof expanding foam, which helps with the fire prevention of the entire lamp. The backboard is fixed to the front ring through screws, and the material of the backboard is iron, providing the final barrier for the fire prevention of the entire lamp.

[0020] 2. A color palette DIP switch box is provided, allowing customers to adjust the color temperature. The DIP switch box and the drive box are connected through DC male and female terminals in the middle. According to customer needs, the DC male and female terminals can be separately docked to an emergency power supply for use. The drive box at the tail is provided with a DIP switch, which can adjust the power of the entire lamp.

[0021] 3. A fixing groove is provided on the front ring, and a waterproof silicone ring is installed in the fixing groove, enabling the front of the downlight to reach the IP65 waterproof rating. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is an exploded view of the side-emitting fireproof downlight in the present utility model.

[0023] In the figure: 1. Fixed screw; 2. Fireproof backplate; 3. Fireproof expansion foam; 4. Reflective paper; 5. Light guide plate; 6. Diffusion plate; 7. Silicone gasket; 8. Light bar; 9. Face ring; 10. Installation spring bracket; 11. Power cord; 12. Color adjustment DIP switch box; 13. DC male terminal wire; 14. DC female terminal wire; 15. Driver box. Detailed implementation mode

[0024] The following further describes the present utility model in detail in conjunction with the accompanying drawings and the specific implementation mode:

[0025] Embodiment 1:

[0026] This embodiment is a side-emitting fireproof downlight, and its overall structure is as Figure 1 shown. It includes: a face ring 9, a light bar 8, a light diffusing structure, a fireproof expansion foam 3, a fireproof backplate 2, and a dimming structure. The light bar is installed on the panel, the light diffusing structure is installed on the light bar, the fireproof expansion foam is installed on the light diffusing structure and is connected to the fireproof backplate. The fireproof backplate and the face ring are fixed into a whole by a fixed screw 1; the dimming structure is connected to the light bar through a power cord, and the dimming structure is externally arranged outside the lamp body.

[0027] The material of the foam is fireproof expansion foam, which helps with the fireproof of the whole downlight. The backplate is fixed on the face ring by screws. The backplate is a fireproof backplate and can be made of iron material, providing the final barrier for the fireproof of the whole downlight, blocking the front fire source from reaching the rear, and enabling the whole downlight to achieve the fireproof function. The downlight has an external driver and adopts an ultra-thin design scheme, saving more space for installation.

[0028] In this embodiment, the face ring is a circular ring structure, and the light bar is a circular light bar, which fits the size of the inner circle of the face ring and is installed on the inner wall of the inner circle of the face ring.

[0029] Furthermore, the face ring and the fireproof backplate are fixed by fixed screws to form a downlight main body, which is easy to disassemble and install. At the same time, the fireproof expansion foam, the light diffusing structure, and the light bar are all installed inside this downlight main body.

[0030] In this embodiment, there are six fixed screws, which are evenly and spaced on the outer wall of the inner circle of the face ring.

[0031] Among them, the face ring is provided with a fixed groove, which is located outside the light bar (the light bar is installed on one side of the inner wall of the fixed groove). A waterproof silicone gasket 7 is installed in the fixed groove. The waterproof silicone gasket fits the size and shape of the fixed groove, and the waterproof silicone gasket is slightly higher than the table surface of the fixed groove. The waterproof silicone gasket abuts against the fireproof backplate. The light diffusing structure, the light bar, and the fireproof expansion foam are all installed inside the waterproof silicone gasket, so that the waterproof silicone gasket can effectively protect the inside of the downlight main body and prevent water vapor from entering the inside of the downlight main body, enabling the whole front of the downlight to reach the IP65 waterproof level.

[0032] Furthermore, the light expansion structure includes a reflective paper 4, a light guide plate 5, and a diffusion plate 6. The diffusion plate is installed above the lamp strip, the light guide plate is installed above the diffusion plate, the reflective paper is installed above the diffusion plate, and the fireproof expansion foam is installed between the reflective paper and the fireproof backplate.

[0033] The diffusion plate can interfere with the light emitted by the lamp strip. No matter what the original designed light distribution curve is, as long as the light passes through the diffusion plate, it will change the beam angle to 160~176°. On the other hand, the diffusion plate has good properties such as heat resistance, dimensional stability, mechanical strength, flame retardancy, etc., can effectively prevent fire, and at the same time has a high light transmittance, excellent light shielding property and durability, making its light diffusion effect reach the best state. It has high brightness and high diffusivity, and can improve the light emission distribution uniformity of the backlight source.

[0034] Therefore, in this embodiment, the diffusion plate is adopted, which can improve the diffusion performance of the light emitted by the lamp strip, make the light emitted by the lamp strip have high softness, reduce energy consumption, improve the illuminance of the lamp, and maintain the consistency of the light source color temperature at the same time.

[0035] The light guide plate is made of optical-grade acrylic / PC sheet, and then a high-tech material with extremely high refractive index and non-light-absorbing property is used to print light guide points on the bottom surface of the optical-grade acrylic sheet by laser engraving, V-shaped cross-grid engraving, and UV screen printing technologies. The optical-grade acrylic sheet is used to absorb the light emitted from the lamp and stay on the surface of the optical-grade acrylic sheet. When the light hits each light guide point, the reflected light will diffuse in all directions, and then the reflection condition is destroyed and emitted from the front of the light guide plate. Through various light guide points with different densities and sizes, the light guide plate can emit light evenly, thereby improving the uniformity of the light emitted by the lamp strip.

[0036] The reflective paper is used to reflect light and irradiate the light to a specific area, thereby improving the lighting effect. The reflective paper is usually made of silver aluminum foil, PET fiber and polymer materials, and has a high reflectivity and heat insulation performance. The good high-temperature resistance enables the reflective paper to be used normally under high-temperature conditions, and also helps the fireproof performance of the whole downlight.

[0037] Combining the diffusion plate, the reflector and the reflective paper, the reflective paper can reflect the light emitted by the lamp strip to the light guide plate, and the diffusion plate diffuses and dissipates the light output by the light guide plate, increasing the light uniformity of the whole downlight and making people feel more comfortable and natural.

[0038] The dimming structure includes a power cord 11, a color palette DIP switch box 12, a drive box 15, and DIP switches. The DIP switches are connected to the drive box, the drive box is connected to the color palette DIP switch box, the color palette DIP switch box is connected to the power cord, the power cord is fixed to the backplate by a wire clip, and the power cord is connected to the lamp strip to provide working power for the lamp strip and adjust the color temperature and brightness of the lamp strip.

[0039] In this embodiment, the color temperature DIP switch box can adjust the color temperature of the light bar. The color temperature DIP switch box has a 6 - gear CCT toggle switch adjustment, which can achieve 5 - gear color temperature selection of 2700 - 3000 - 3500 - 4000 - 5000 and the 2000 - 3000K DTW function.

[0040] Based on the above structure, the side - emitting fire - proof downlight provided in this embodiment has the following beneficial effects:

[0041] 1. The use of fire - proof expansion foam helps with the fire - proofing of the entire downlight. The fire - proof back plate also provides the final barrier for the fire - proofing of the entire downlight, which can block the front - facing fire from reaching the rear, enabling the entire downlight to achieve the fire - proofing effect.

[0042] 2. The downlight has an external driver. The light bar is pasted on the inner wall of the face ring through a heat - conductive tape. The face ring, the fire - proof back - shaped downlight body, the diffusion plate, the light guide plate, the reflective paper, and the fire - proof expansion foam are sequentially placed inside the downlight body. The downlight body is ultra - thin, which can save more installation space.

[0043] 3. It is equipped with a color - adjustment DIP switch box for customers to adjust the color temperature. There is a DIP switch on the tail - end driver box to adjust the power of the whole lamp.

[0044] 4. A fixing groove is provided on the face ring, and a waterproof silicone ring is installed in the fixing groove, enabling the front of the downlight to reach the IP65 waterproof level.

[0045] Embodiment Two:

[0046] Most of the existing fire - proof downlights are fire - proofed by applying fire - proof materials. On the one hand, it affects the lighting effect, and on the other hand, it increases the thickness of the downlight.

[0047] This embodiment provides a side - emitting fire - proof downlight, including a face ring. A fixing groove is provided on the face ring, and a waterproof silicone ring is installed in the fixing groove. The fixing groove positions and fixes the waterproof silicone ring, so that the front of the downlight reaches the IP65 waterproof level.

[0048] The light bar is pasted on the inner wall of the face ring through a heat - conductive tape. A number of lamp beads are evenly and spacedly installed on the light bar, and the orientation of the lamp beads is the center of the circle where the light bar is located.

[0049] In this embodiment, the light bar uses LED lights, which adopt advanced LED lighting technology, have high light efficiency, can provide brighter and more uniform light, and have a better lighting effect. The power consumption of LED lights is low, which can effectively save energy and reduce energy consumption costs. The structure is simple and maintenance is more convenient. You only need to clean the surface of the lamp regularly to maintain the lighting effect. At the same time, the light-emitting angle of the LED lamp is adjustable and can be adjusted according to different lighting needs, so that the light is more in line with actual needs. Its service life is also far longer than that of traditional incandescent lamps, which can save a lot of replacement and maintenance costs. It does not produce harmful gases and radiation, and does not pollute the environment.

[0050] The diffusion plate, light guide plate, reflective paper and foam are placed from bottom to top in sequence. The material of the diffusion plate is V0 flame-retardant PC material, and the material of the foam is fire-proof expansion foam, which provides help for the overall fire protection of the downlight.

[0051] The main function of the light guide plate is to guide the luminous flux of the light strip to be evenly distributed on the entire surface. Through reflection and refraction, the light enters the light guide plate from the side and is emitted from the front with higher efficiency, thereby achieving uniform distribution and efficient use of light.

[0052] The main function of the diffuser is to open up the flux of light and distribute it evenly. By chemical or physical means, inorganic or organic light diffusers are added to the substrate, or by arraying micro-feature structures on the surface of the substrate, the light is artificially adjusted to refract, reflect and scatter in different directions.

[0053] The fireproof back plate is fixed to the face ring by screws. The material of the back plate is iron, which provides the final barrier for the overall fire protection of the downlight.

[0054] The diffuser, light guide, reflective paper and other structural parts are all made of fireproof and high temperature resistant flame retardant materials. The fireproof barrier provided by the fireproof backboard can prevent the front fire source from passing through to the back, so that the whole lamp can achieve fireproof effect. On the other hand, the diffuser, light guide and reflective paper are all plate-shaped structures, which are overall thin and installed inside the downlight. While preventing fire, it also realizes the ultra-thin design of the whole lamp, which also saves more time for downlight installation.

[0055] Furthermore, a heat sink is installed on the fireproof back plate to dissipate heat from the downlight. The heat sink is made of a heat-resistant metal material (such as an aluminum alloy material), which can also be flame-retardant to a certain extent when the fire spreads. The outer surface of the heat sink is a sheet-shaped surrounding structure.

[0056] A fireproof cotton ring is also installed on the outer side of the fireproof backboard, which fits the size of the circle where the edge of the fireproof backboard is located. Since the fireproof backboard is reversely buckled to the ceiling, and fixing screws and radiators are installed on the fireproof backboard, it may cause the installation surface to be uneven and affect the aesthetics of the downlight. Therefore, a fireproof cotton ring is set around the fireproof backboard to make the downlight installation flat. At the same time, it can effectively block the flame during a fire and further prevent fire. A number of heat dissipation holes are provided on the metal cotton ring to facilitate the radiator for heat dissipation.

[0057] The downlight has an external dimming structure. The dimming structure includes a power cord 11, a color adjustment DIP switch box 12, a DC male and female terminal, and a driver box 15, and a DIP switch. The DIP switch is connected to the driver box, the driver box is connected to the DC male and female terminal, the DC male and female terminal is connected to the color adjustment DIP switch box, the color adjustment DIP switch box is connected to the power cord, and the power cord is fixed to the backboard through a wire clip. The power cord is connected to the light bar to provide working power for the light bar and adjust the color temperature and brightness of the light bar.

[0058] Specifically, the DC male and female terminal includes a DC male terminal wire 13 and a DC female terminal wire 14. The color adjustment DIP switch is connected to the DC male terminal wire, the DC male terminal wire is connected to the DC female terminal wire, and the DC female terminal wire is connected to the driver box. The color adjustment DIP switch box and the driver box are connected through the DC male and female terminal, so that the DC male and female terminal can be separately docked to the emergency power supply for use according to customer needs.

[0059] In this embodiment, the color adjustment DIP switch is used to adjust the color temperature of the light bar. There are a total of 6 gear switches, and 6 gear color temperature selections can be made. The DIP switch is used to adjust the power of the downlight, that is, to adjust the brightness of the downlight. There are a total of three gear switches to choose from. And when in the dimming state, during the process from the brightest to the darkest, the zero-degree change occurs while the color temperature also changes from 3000K to 2000K.

[0060] In this embodiment, it also includes installation springs 10. There are two installation springs, which are symmetrically installed on both sides of the face ring. Through the installation springs, the downlight can be installed on the ceiling or wall, so as to realize the portable installation and disassembly of the side-emitting fireproof downlight.

[0061] At the same time, a metal hanging rope is provided on the fixed cross beam of the installation spring to prevent the downlight from falling during installation; it can also effectively prevent the downlight from falling when the fire is too large, improving safety.

[0062] And the outer shell above the radiator of this downlight is also made of metal heat-resistant and temperature-resistant material, which can also play a certain role in flame retardancy when the flame spreads, buying time for fire fighting.

[0063] In case of a fire, the fireproof cotton ring can first block the flame, and then cooperate with the installed spring and metal suspension rope to ensure that the downlight does not fall for a long time in the flame. At the same time, heat dissipation is carried out through the heat exchange between the radiator surface and the air. Then, after a period of time, when the flame spreads to the fireproof backplane, the fireproof backplane will provide fire retardancy for a period of time, effectively increasing the fireproof time.

[0064] A side-emitting fireproof downlight provided in this embodiment has the following beneficial effects:

[0065] 1. It is equipped with a color adjustment DIP switch box for customers to adjust the color temperature, and a DIP switch for customers to adjust the brightness of the downlight, realizing convenient DIP dimming, enabling the side-emitting fireproof downlight to adjust the light brightness and color temperature according to the lighting requirements of different scenarios, and further meeting the needs of customers.

[0066] 2. The material of the diffuser plate is V0 flame-retardant PC material, the material of the foam is fireproof expanding foam, and both the reflective paper and the light guide plate are made of fireproof and high-temperature-resistant materials, which helps to provide fire protection for the whole lamp.

[0067] 3. The DIP switch box and the driver box are connected through DC male and female connectors, and according to the needs of customers, the DC male and female connectors can be separately docked on the emergency power supply for use.

[0068] The above-described embodiment is only a preferred solution of the present invention, and does not impose any form of limitation on the present invention. There are other variations and modifications without exceeding the technical solutions described in the claims.

Claims

1. A side-emitting fireproof downlight, characterized in that: include: A face ring, wherein a light bar is arranged on the inner wall of the face ring, a light expansion structure is installed on the light bar, a fireproof expansion foam is arranged on the light expansion structure, a fireproof back plate is arranged on the fireproof expansion foam, a dimming structure is arranged on the outer side of the fireproof back plate, and the dimming structure is connected to the light bar.

2. A side-emitting fireproof downlight according to claim 1, characterized in that: The face ring is provided with a waterproof groove, and a waterproof silicone ring is installed on the waterproof groove.

3. A side-emitting fireproof downlight according to claim 1, characterized in that: The dimming structure includes a color adjustment dial box, the color adjustment dial box is connected to a driving box, and a dial switch is arranged on the driving box.

4. A side-emitting fireproof downlight according to claim 3, characterized in that: The dimming structure comprises a power line, the power line is fixed on the fireproof back plate through a line clip, and the power line is connected to the color dial box.

5. The side-emitting fireproof downlight according to claim 1, characterized in that: The light expansion structure comprises a diffusion plate installed on the light bar, a light guide plate is installed on the diffusion plate, and a reflective paper is installed on the light guide plate.

6. A side-emitting fireproof downlight according to claim 1 or 2 or 3 or 4 or 5, characterized in that: Also included is a mounting spring, which is symmetrically mounted on the face ring.

7. A side-emitting fireproof downlight according to claim 3 or 4, characterized in that: The color adjustment dial box is connected to the drive box via DC male and female terminals.

8. The side-emitting fireproof downlight according to claim 5, characterized in that: The diffusion plate is a V0 flame retardant PC diffusion plate.

9. A side-emitting fireproof downlight according to claim 1 or 2 or 3 or 4 or 5, characterized in that: The light strip is adhered to the inner wall of the face ring by means of heat-conducting adhesive.

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