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analysis and design and production of led flat panel ceiling drop troffer lights

LED flat panel ceiling drop troffer lights lamp in the lighting market has a delicate identity. LED backlight derived from the LED flat-panel light, the light uniform, non-glare, exquisite structure, has been a lot of people’s favorite.

Surface light source structure mainly has the following materials:

1, aluminum frame

The appearance of the structure, and LED cooling main structure: the general use of AL6063, aluminum extrusion, low initial investment costs, surface treatment beautiful, good cooling effect, manufacturers have begun to do the framework of casting, so IP level can do a little higher, , The overall appearance, but the higher cost of pre-investment mold.

Surface light source material composition analysis and design and production of led flat panel ceiling drop troffer lights lamp matters needing attention

2, the diffusion plate

The light guide plate light evenly shed, as well as blocking the role of network. Diffuser plate generally use the acrylic 2.0 sheet or PC material, the lower the cost of acrylic and light transmittance slightly higher than the PC, acrylic brittle anti-aging performance is weak, the price of PC is slightly expensive, but anti-aging properties. Diffusion board can not be seen after the installation of outlets, and the transmittance to 90%. Acrylic light transmittance of 92%, PC 88%. We can according to the needs of the diffusion plate material selection, the general will use the acrylic material.

3, light guide plate

The side of the LED light through the network point of refraction to change the angle of light shed. Light guide plate is the heart of flat light, network design is very important, network design is not good, see the overall light effect is very poor, generally appear (1) the middle light, dark; (2) Middle dark; (3) standing from different angles, the overall brightness is inconsistent; (4) local dark area obvious.

The light effect of the light guide plate is very large in the design of the network, followed by the choice of sheet, but the blind pursuit of the brand sheet is wrong, because many brands such as Mitsubishi, most of its good sheet are People order well, a lot of market out of more than some of the Mitsubishi sheet scrap, the low light transmission is not as good as their own production of high-plate, so the choice of sheet metal plate manufacturers do not necessarily depend on, as long as the test light transmission efficiency OK, In fact, on it.

4, reflective paper

philips led panel lights

The light guide plate to reflect the back side of the light. Generally RW250.

5, the rear cover

Sealed aluminum lamp body is generally aluminum, the overall texture strong, and can play a little heat effect.

6, LED light source

General use 3528, it was also used 5630 and 5050, 5630 and 5050 luminous efficiency is not high and network design difficulties, versatility is poor, but low cost. 3528 optical efficiency High-point versatility, generally just started to do directly to buy a home light guide plate, do not need to re-proofing design.

7, drive power

(2) constant pressure with cross-flow mode, stable performance, but low efficiency, high cost, the general (1) the use of cross-flow power supply, this mode of high efficiency, PF value of 0.95, cost-effective; Use of this model is designed for customers who require certification, because the lamps are 24V input low-voltage lamps, do not need to do safety regulations, the direct use of a power supply can be shipped to various countries.

In the design and production process should pay attention to the problem

Surface light source material composition analysis and design and production of led flat panel ceiling drop troffer lights lamp matters needing attention

1, thermal plastic to be as thin as possible, it is best to use self-adhesive thermal plastic, or will affect the thermal conductivity.

2, the choice of diffusion plate, the market is now a lot of flat-panel lamps will generally choose to add smooth matte diffuser, the diffusion plate has a drawback, static electricity, in the production process easy to produce ash highlights, and Long-term use of dust through a variety of ways into the lamp body, will result in intensive lighting highlights. In the early use of double-sided diffusion of diffusion plate, the diffuser plate light guide effect is good, static is small, to avoid the dust into the light body of the bright spot effect, but this diffusion plate low transmittance of only 85-88% , Whether to choose it depends on the meaning of our own design.

3, LED selection, try to use high efficiency lamps, because the side-emitting flat-panel lamps in the cooling and luminous flux output are limited, power will have a large cooling effect, and low luminous efficiency.

4, into the smooth surface in the sticky reflective paper, try not to glue, glue will absorb light, and prone to bright side into the light, but a large area of ​​light guide plate will need to stick a little, otherwise there will be shadow, Tight, loose in the lamp body warpage will appear this situation.

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