Why Is The Integrated Led Light Source Dead? Method For Installation Of Led Integrated Ceiling Lights

Writer：Jane Time：2021-07-08 Browse：151

This paper is going to introduce the installation method of LED integrated ceiling light and the reasons for the integrated LED light source dead light.
Actually, lamps and lanterns is very common, for the integration ceiling led lamp is lighting, heating, ventilation, the lamps and lanterns of these functions are integrated, actually installation is very convenient, and, for most of the lamps and lanterns, high safety coefficient of the lamps and lanterns, takes up less space, with the consideration of the characteristics of the integrated ceiling led lights is ideal for use in the bathroom, kitchen, Indeed, a large part of the integrated ceiling LED lights are used in the kitchen and bathroom, which can be said to be a good help to create a good kitchen and bathroom environment.
LED Integrated Ceiling Light Installation Method and Decryption of Integrated LED Light Source Death Cause
Method for installation of LED integrated ceiling lights
1. Preparation of integrated ceiling materials
Normally, when choosing aluminum gusset ceiling, its size is 300mm×300mm, 300mm×450mm, 600mm×600mm, which is conducive to the installation of new electrical modules. Of course its keel material can choose the light steel keel that galvanized steel plate makes, triangle hanging piece and triangle keel, repair edge to wait a moment.
2. Installation of suspended ceiling
Determine the place where the ceiling is installed first, pull the horizontal line and hang the light steel keel; The special triangle card code is buckled into the triangle keel, according to the specifications of the installed square plate on the grid card, after the keel is installed, you can directly press the aluminum gusset plate ceiling into the triangle seam to complete the installation of the ceiling.
3. Installation of triangle keel
Rationally distribute the installation locations of the lifting parts on the main keel and mark them. The center line of the first triangle keel against the wall is 305mm away from the wall, the spacing of the other triangle keel is 300mm, the triangle keel is covered with hanging parts, and the triangle keel is fixedly connected with the main keel through the hanging parts.
4. Installation on the mainframe
The lamp heating host and the air heating host should be connected with the N line and the L line switch. In the installation of the lamp warm host, should first screw into the heating bulb, loosen the lamp warm bracket movable screw, adjust the position of the heating bulb, heating bulb exposed standard is: the aluminum layer of the heating bulb and the panel flush, the size is 30mm, the wind warm host PTC heating block from the panel 5mm.
5. Aluminum gusset plate assembly
The aluminum gusset plate must be installed with gloves. First, tear off the four sides of the aluminum gusset plate. It can be installed from the keel of the main engine and assembled to the wall block by block. Pull the clips on all the trimming corners to 60 degrees and begin the assembly of the aluminum gusset plate on the first keel. The last two aluminum gusset plate, do not assemble first, assemble other aluminum gusset plate, face plate first, maintain integral level off, crack is consistent, patchwork seams straight line.
Integrated LED light source dead light cause
Integrated LED light source is a packaging form of high-power LED that integrates a number of LED chips on the same bracket and realizes the packaging form of high-power LED through internal connection. It has a large volume and the power is generally above 10W. It usually refers to Chip on Board packaging form (abbreviation: COB), with the popularity of LED lighting, the advantages of integrated LED light source in lighting applications are gradually recognized by the industry, and gradually become the trend of lighting applications.
In LED integrated light source and its application, LED finished product customers use end after a period of time, it is possible to encounter the light source is not on (dead light), after the analysis of light source products, the cause of dead light can be divided into the following:
First, electrostatic damage to the LED chip
Analysis of adverse causes: electrostatic damage (human body, environment and equipment) in the process of LED integrated light source storage, packaging and welding application.
Improvement points: ESD protection includes storage/working environment, instrument/equipment grounding, human body electrostatic protection, etc. Qichen Lighting Company requires every employee to wear an anti-static bracelet when producing LED lamps, so as to eliminate the damage caused by static electricity to LED chips in the assembly process.
Two, LED integrated light source and power supply match caused by abnormal damage
The LED integrated light source and the power supply match abnormal or the drive power output out of control leads to the LED integrated light source internal chip and gold wire damage, resulting in specific adverse phenomena: the chip and gold wire obviously black, through the microscope observation found that the gold wire carbonization or chip burned black state.
Bad cause analysis: abnormal output of the driving power supply (including parameter mismatch, abnormal output caused by poor power supply performance, etc.).
Improvement points: technical personnel to LED light source and drive electrical performance matching evaluation, the feasibility of structural safety; Drive power performance and reliability improvement.
Three, LED integrated light source surface damage or cracking caused by the light source can not be lit and the dead light
Analysis of adverse causes: the LED light source temperature reaches the bearing limit, resulting in the colloid failure hardening or the light source is damp, resulting in welding or use process, the colloid thermal expansion and cold contraction process of the gold wire is broken, resulting in the dead lamp; In addition, the use of the process of colloid damage (external stress applied on the surface of the colloid) lead to the internal gold line disconnected and dead lamp (as shown in the B/C/D point one of the points of tension) happens from time to time, the use of other materials in the welding process attached to the surface of the colloid damage colloid for a long time after use will eventually lead to dead lamp.
Improvement points: the feasibility experiment verification of packaging glue parameters by packaging manufacturers; The LED application manufacturer evaluates the feasibility of the cooling structure according to the operating temperature limit provided by the packaging manufacturer; Pay attention to protect the surface of the colloid to prevent damage during use and handling.
Four, LED integrated light source internal black cause dead light
Analysis of adverse causes: chemical substances (sulfur, halogen and other substances) that lead to vulcanization exist in the environment of packaging workshop; The existence of sulfur and halogen components in LED structural parts, glue and environment, especially in welding and other high temperature link will accelerate the volatilization of such substances, which will affect the LED integrated light source caused by the internal bracket vulcanization, vulcanization of the bracket will affect the product heat dissipation and light parameters, the final result is that the LED dead light is not bright.
Improvement point: whether the packaging factory or the application factory should strictly control the chemical composition of the material, put an end to the use of sulfur-containing auxiliary materials (glue, washing water, packaging bags, gloves, etc.) and the control of sulfur composition in the environment. At the same time, the packaging factory must carry out anti-vulcanization test on the LED integrated light source.