深圳市联业光电技术有限公司

Big Dipper laser Science And Technology CO.,LTD

LED install anti-static attention

2017-06-06

142,050
63,544

LED lights generate static electricity when installed. Need your attention as following for installation. ① Th

LED lights generate static electricity when installed. Need your attention as following for installation.
① The operator must ware wrist wearing for anti-static, and ware anti-static shoes and clothes. 
②、Once LED had been broken by static, there would be some bad properties. Leakage of electricity , electricity current increase , static forward voltage reduce or rise , LED doesn’t work or glows abnormally under low electricity current.
③、All device and equipment must connect ground well, especially solder iron and solder machine.  
④、The wrist wearing for anti-static need to be detected every day. And to change the failure.

 

 


Ⅰ The way for pin forming 
①、Bracket shaping must be completed by fixture or professional. 
② Bracket shaping should have be guaranteed the accordance for the distance of pin and PCB.
③、The bracket can be bent as far 2mm away from colloid, in order to avoid the broken for the insert structure of colloid. 
④ The bracket shaping must be completed before welding.

 

Ⅱ Current Using
①  Over high current makes the burnt of LED or decline of brightness.
②、As Led has a character the voltage a little bit rise, the current increase rapidly.
③、When using, should add a resistor and LED lamp in series, act as a limit to flow.
④、LED should work under the same current condition. Generally, the current of LED will be 15-19ma.

 

Ⅲ LED welding conditions
①、 Soldering iron welding: soldering iron (maximum 30 w) tip temperature does not exceed 300 ℃;No more than three seconds of welding time;Welding time no more than 3 seconds;The welding position is at least 3 mm from the colloid.
②、Welding, welding the highest temperature of 260 ℃;The soldering time is not more than 5 seconds;At least 2 mm far way from the colloid.

 

Ⅳ Brightness test and products manual
①、 As using color separation and light separation products, please according to the order of classified BIN for using, can't mix different BIN number for using in the same products, lest produce color, brightness, the voltage difference.If you really want to mix the BIN number, adjacent BIN can be put together, but it’s better to avoid.
②、When the LED is tested and used, each LED must be provided with the same current or constant current test to ensure that the detection brightness is consistent. The current should not exceed 20mA, and the current of 15-19ma should be used.
Wireless intelligence lighting installation


Ⅴ.LED Installation 
①、Make sure not install bin under the situation of bin bending 
②、When installing LED, to suggest using guided sets of positioning.
③、Pay attention to the arrangement of the outside line of various devices, in case the polarity is wrong.The device must not be too close to the heating element.
④、When deciding to install in the hole, calculate the dimensions and tolerances of the holes in the face and circuit board to avoid excessive pressure on the bracket.
⑤、Before welding temperature returns to normal, it must be avoid any vibration or external force.
Ⅵ WASHING
You must be careful when cleaning the colloid with chemicals, because some chemicals can damage the surface of the colloid and cause discoloration such as trichloroethylene and acetone. It can be wiped and impregnated with ethanol, and the time is no more than 3 minutes at normal temperature.


Web site: 
QQ:2978676278
Tel :+86-13692170664
Email:sales8@bigdipper-laser.com
WeChat public no.: NicoleChen634378
Address: NO42, Caiyun Road, Ailian Longteng Industrial Zone, Longgang District, Shenzhen PR China. 

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深圳市联业光电技术有限公司

Big Dipper Laser Science And Technology CO., LTD

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