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Line called packaging line components, packaging is the production of solar cells a key step in the packaging process without a good, multi-well battery is also not a good component of production boards. Battery package not only the portable solar charger life is guaranteed, but also to enhance the combat strength of the battery. Product quality and high service life is to win can be the key to customer satisfaction, so the quality of components of the package board is very important.
Process:
1, the battery test – 2, positive Welding – Inspection -3, on the back of cascading – Inspection -4, laying (glass cleaning, material cutting, glass pre-processing, laying) – 5, laminating – 6, to flash ( to the side, cleaning) – 7, fitted border (glue, loading angle keys, punching, install box, scrub I glue) – 8, the welding junction box – 9, high-pressure test – 10, component testing — -11 appearance inspection, packaging and storage
Component efficiency, and high life how to ensure that:
1, high conversion efficiency, high-quality solar cells;
2, high-quality raw materials, such as: a high degree of cross-linked EVA, high bond strength of the package agent (neutral silicone resin), high light transmission rate of high-strength tempered glass, etc.;
3, reasonable packaging process
4, staff rigorous style of work;
As the solar cell of high-tech products, production process, some of the details, a number of problems such as should be inconspicuous and not wearing gloves, it should be uniform reagents and illegible finish up brushing affect product quality are all the enemy, so in addition to develop a reasonable the production process, the staff is very serious and rigorous important.
Solar Cell Assembly Process Description:
Process Description: here only a brief look at the role of technology, give us an emotional understanding.
1, the battery test: Because the randomness of the battery-chip manufacturing conditions, the production out of battery performance is different, we will be for the effective performance of identical or similar battery together, it should be classified according to their performance parameters; battery test that is by testing the battery output parameters (current and voltage) of the size of its classification. To improve the utilization of the battery to make the battery components of acceptable quality.
2, positive welding: It’s convergence with soldered to the battery positive (negative) of the main gate line, convergence zone for the tinned copper strip, we use a welding machine can weld with a multi-point in the form of spot welding on the main gate Online. Welding heat source for an infrared lamp (using infrared thermal effect). Welded belt length of about 2 times the 12 volt solar battery charger side length. More welding belt behind the back of welding with electrodes connected to the back of the battery film
3, on the back of concatenation: back of the weld is 36 cells cascaded together to form a component of the string, we are currently used process is manual, the battery depends mainly on the positioning of a membrane with plate 36 placed above the battery film grooves, groove size and battery size correspond to the location of tank has been designed well, different specifications of the components use a different template, the operator use electric soldering iron and solder wire will “in front of the battery,” the positive electrode (cathode) Welding to the “behind the battery” on the back electrode (cathode), so that in turn will be 36 series with the component string together and welded out of positive and negative leads.
4, laminated lay: on the back of a good tandem and tested after passing the component string, glass and cut a good EVA, glass fiber, backplane according to a certain level, laying a good preparation for lamination. Glass pre-coated layer of reagent (primer) in order to increase the bonding strength of glass and EVA. When installed to ensure the battery strings and glass and other materials relative position, adjusting the distance between the battery, in order to laminate lay a solid foundation. (Laying of levels: from the bottom up: glass, EVA, cell, EVA, glass fiber, backplane).
5, component lamination: a good battery will be laid into the laminating machine, through the vacuum component of the air out, and then heated to melt the EVA batteries, glass and back bonding together; the final cooling out components. Lamination process is a key step in component production, lamination temperature lamination time, according to the nature of EVA. We use the fast-curing EVA, the lamination cycle time is about 25 minutes. Curing temperature of 150 ?.
6, trimming: laminated EVA melt when the pressure of reaching out after curing due to the formation of flash, so it should be removed laminated finish.
7, fitted box: similar to the glass mounted to a frame; to the glass component mounted aluminum frame to increase the intensity of the component, further sealing the battery components, longer battery life. Frame and glass components of the gap filled with the silicone resin. The border between the connection with the angle button.
8, the welding junction box: In the back of the lead at welding a component box, in order to facilitate the battery and other equipment or connections between cells.
9, high-pressure test: high-pressure test is defined as components of the border and the electrode lead a certain voltage is applied between the test component of the pressure resistance and dielectric strength to ensure that components in harsh natural conditions (lightning, etc.) will not be damaged under the .
10, component testing: the test objective is to calibrate the battery output power to test its output characteristics, determine the quality grade components.
Solar Array Design Step 1. Calculating the load capacity of 24h consumed P.
P = H / V
V – Load Rated Power Supply
2. Selected daily sunshine hours T (H).
3. Calculating solar array operating current.
IP = P (1 + Q) / T
Q – by rain period surplus factor, Q = 0.21 ~ 1.00
4. Determine the battery float voltage VF.
Nickel-cadmium (GN) and lead-acid (CS) monomer battery float voltage of 1.4 ~ 1.6V and 2.2V.
5. solar battery chargers temperature compensation voltage VT.
VT = 2.1/430 (T-25) VF
6. Calculating solar array voltage VP.
VP = VF + VD + VT
Where VD = 0.5 ~ 0.7
Approximately equal to VF
7. Solar array output power of WP ? flat-plate solar panels.
WP = IP × UP
8. According to VP, WP silicon flat-panel combination series form the battery to determine the standard of the serial block number and the number of parallel groups.