Several important points for attention in the design of LED high bay lights
Datetime: 2021-05-20 11:00:31
The
LED high bay light uses a new type of light source. In addition to energy
saving and environmental protection, it also has the advantages of pure light
and concentrated light. New technologies, new materials and new processes have
been continuously applied to the design of high-power LED high bay lights,
laying a solid foundation for the design of high-power LED high bay lights. The
design of LED high bay lights involves more details. We follow the following
important considerations to reflect the design process and methods:
1 Power selection
Traditional high bay lamps are mostly 250W or 400W high pressure
sodium lamps and metal halide lamps. Compared with the characteristics of new
LED lamps, there are obvious differences:
2 Light source selection
At present, the more well-known brands of
high-power LED industrial and mining light sources on the market are: CREE,
OSRAM, NICHIA, Lumileds (the earliest LED), in addition to Taiwanese
manufacturers Epistar, Addison and domestic packaging manufacturers Shenzhen
Wanrun, Guangzhou Hong Li and Shenzhen Hongya are also popular brands.
3 Heat dissipation design:
In the use of high-power LEDs, heat dissipation is a big problem.
For example, if a 10W white light LED has a photoelectric conversion efficiency
of 20%, 8W of electrical energy is converted into heat. If no heat dissipation
measures are taken, the core temperature of the high-power LED will rise
rapidly, when its junction temperature (TJ) When the temperature rises above
the maximum allowable temperature (usually 150°C), the high-power LED will be
damaged due to overheating. Therefore, heat dissipation design is also our most
important content. In the following, we will discuss heat dissipation design
from the combination of aluminum substrate and heat sink.
4 Mechanism design
The design of LED high bay light mechanism involves not only the
mechanical structure of the whole lamp, but also the beautiful appearance of
the lamp. Next, we carry out the specific design of the die-casting radiator
from the following four aspects.
5. LED high bay light verification results
In order to ensure the quality of the lamps, we have carried out a
series of tests on light distribution, thermal, electrical safety, and
reliability before mass production and shipment. The following are the
verification results of each test.
6. Cost and benefit evaluation
Compared with high-pressure sodium lamps or metal halide lamps for
plant lighting, the initial investment cost of LED high bay lamps is obviously
much higher than that of traditional lamps. However, because the LED light
source has the characteristics of high luminous efficiency, and when it is made
into a lamp, the advantage of the strong directivity of the LED light source is
easily reflected. The efficiency of the LED lamp is much higher than that of
the traditional lamp, so its energy-saving characteristics can be Obviously
manifested.
How to distinguish the material of the
factory\'s three-proof lamp
Factory tri-proof lights are generally used
in places where industrial lighting needs are more corrosive, dusty, and rainy,
such as power plants, steel, petrochemicals, ships, venues, parking lots,
basements, etc. In this way, the material of the factory\'s three-proof lamp is
required to be very good, let us see how to distinguish the material of the
factory\'s three-proof lamp.
One: See if there is a national inspection report;
Two: Look at the product packaging, including the product\'s trademark,
nominal power, and the content of the mark. Wipe it with a soft damp cloth. The
clear and easy-to-read mark should be qualified;
Three: Qualified energy-saving lamps can reach 5000 hours of normal use
under the experimental state, and reach more than 2000 hours. If this standard
is not reached, that is, lemon;
Four: safety requirements, installation, deletion process, please refer
to whether the cap is loose, whether there is a crooked head phenomenon,
whether it is insulated
Optional: Generally, you should pay
attention to: First, buy those products that have passed the safety
certification and the national green lighting project recommendation, and do
not buy three products; second, visually check, please note that the lamp and
the shell are loose, and the phosphor is uniform , With or without particles,
the thickness of the lamp should not change too much. Good products must be
used correctly to extend their lifespan. Manufacturers should ensure that any
protective safety compliance, light preparation reaches a certain level, an
average life span of more than 8000 hours, there is a certain quality assurance
before labeling problems. Also consider the technical parameters of the
electronic ballast.