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Parameters of high -power LED lamp beads

Parameters of high -power LED lamp beads
Time:2022-10-09 00:00:00 | view:

Parameters of high -power LED lamp beads

Parameter of 1W high-power LED lamp beads: Power: 1W voltage: 3.2-3.

5 current: 350ma Link: 90-100 color temperature: 2700-10000K chip Size Size: 38*38

Beads, high -power LED lamp beads have higher output, brighter brightness, and higher prices. The rated current of small -power LED lamp beads is 20mA, and the rated current can basically be considered to be high power. The general power number is 0.25W, 0.5W, 1W, 3W, 5W, 8W, 10W, etc. The main brightness unit is LM (lingering, small output brightness units are generally MCD (the slightest, 1cd \u003d 1000mcd), that is, the light emitting intensity I.

High -power LED lamp bead product classification:

as new green, environmental protection, energy -saving energy saving, energy saving energy saving Light source, widely used in car lights, flashlights, lighting appliances, etc. The title of high -power LED lamp bead is mainly aimed at small power LED lamp beads. There are now 3 specifications. It is divided into large -scale epoxy resin packaging, proprietary mermaid -type epoxy resin packaging, aluminum substrate MCPCB packaging, to packaging, power -type SMD packaging, MCPCB integrated packaging, etc. W, 1W, 3W, 5W, 10W ... 100W, according to the total power of the forming products after the packaging, it is different from the degree of light attenuation at the degree of light attenuation. . Due to the many parameters of the high -power LED lamp beads, there are different classification specifications according to different parameters. It is not described here. Note for the use of high -power LED lamp beads

High -power LED lamp bead and equipment use In the process, welding, heat dissipation, and electrostatic protection have a great impact on their characteristics, and it needs to attach great attention from the user's customers.

1. Welding of high -power LED lamp beads

1. When welding The branding iron. The welding temperature is below 260 ° C. When the soldering iron is contacting the LED lamp bead pad, it does not exceed 3S.

2. If the silicone packaged high -power LED lamp beads, the highest heat resistance temperature of silicone is 180 ° C, LED lamps are LED lamps The welding temperature of the beads must not exceed 170 ° C. Choose low -temperature soldering iron and low -temperature welded welded. When the soldering iron does not exceed 3s when the LED lamp bead pad. Paradise, public places, all lighting equipment that requires light sources.

2. The heat dissipation of high -power LED lamp beads:

Now, due to the limitation of the skill of the semiconductor LED lamp bead chip, the photoelectric conversion power of LED lamp beads has not improved. Special Due to its high power, more than 60%of the power LED lamp beads have become a thermal energy release (with the expansion of semiconductor skills, the photoelectric conversion power gradually improves), so when the use of high -power LED lamp beads is used, in order to ensure the large -scale LED lamp bead The normal work of the power LED lamp bead needs to perform heat dissipation operations.

1. Fingerprint requirements

Stagging and raw materials: The product sealing requirements are not high, and can be directly opposed to the external air environment. Heating slices.

2. Useful heat dissipation volume:

1W high-power LED lamp bead is about white light (other colors are basically the same). The company recommends the total accumulation of the radiator ≥50-60 cm. For 3W products, it is recommended that the radiator is ≥150 square centimeters in the appearance of the radiator. The higher power is added by the condition and experimental results to ensure that the temperature of the radiator does not exceed 60 ° C.

3. Connection method:

high -power LED lamp beads in the connection substrate and When fingertips, ensure that the two touch surfaces are flat, and ensure excellent touch. In order to strengthen the degree of binding of the two touch surfaces, high -power LED lamp beads advocate the heating coefficient of thermal silicon golf grease on the bottom of the substrate or the surface of the fingerboard ≥ ≥ 3.0W/m.k), thermal silicon grease requires a uniform and appropriate amount of appropriate amount to be fixed with screws.

3, the static protection of high -power LED lamp beads

High -power LED lamp bead belongs to semiconductor equipment, which is sensitive to static electricity, especially white, green, blue, and purple LED lamp beads for anti -static seizures for removing static work.

1. Static Section: One conflict: In daily life, any two different raw materials objects are separated after contacting. The most common method of power generation can be used to generate electricity. The better the insulation of the data, the simpler the conflict will generate electricity. In addition, if any two different objects of objects are separated, static electricity can be generated. Second sensing: For conductive data, electrons can be freely moved in its appearance. If it is placed in the electric field, the same sex will rebound, the opposite sex will suck each other, positive and negative ions will be handled, and the charge will be generated in its appearance. ③ conduction: For conductive data, because the electrons can move freely in their appearance, for example, when contacting the electrical object, the charge will be carried out.

2. The loss of high -power LED lamp beads caused by static electricity:

High -power LED lamp bead is partially damaged by instantaneous electric fields and currents. The leakage current is quickly added and can be operated, but the brightness is reduced and the life is damaged.

Due to the damage of the insulation layer of the dual -electric or current high -power LED lamp beads, the equipment cannot work (completely damaged), which is manifested as a dead lamp.

3. Static electricity protection and removal method:

aken for the entire project (production, test, packaging, etc.), employees who are directly contacted by high -power LED lamp beads must do a good job of avoiding static and removing.

1. Pay the anti -static floor in the workshop to do a good job of grounding.

2, the workbench is the anti -static workbench, the production table is well grounded.

3. The operator is wearing anti -static uniforms with anti -static bracelets, gloves or foot ring.

4. Use ionic fan.

5. Welding welding makes the ground better.

6. Packaging selects anti -static materials.

High -power LED lamp beads are the most important part of the introduction of semiconductor lighting into general lighting. The high -power LED deepen the understanding of packaging and mastering each skill parameter and characteristics, which has important cooperation with LED lighting and display products.

 
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