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A slurry equalizing device and slurry pressing method for solar cell printing

A solar cell and slurry technology, applied to the surface coating liquid device, coating, etc., can solve the problems of uneven coating of slurry, ripples on the surface of the slurry layer, etc., to achieve fast and accurate adjustment process, reduce Labor intensity, accurate and reliable effect

Active Publication Date: 2022-04-22
JIANGSU ZHENGNENG ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a slurry uniform pressure device for solar cell printing to solve the unevenness of slurry coating and corrugation on the surface of the slurry layer, and to automatically detect the uniformity fluctuation of the coating process ; The present invention also provides the grouting method of this slurry equalizing device

Method used

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  • A slurry equalizing device and slurry pressing method for solar cell printing
  • A slurry equalizing device and slurry pressing method for solar cell printing
  • A slurry equalizing device and slurry pressing method for solar cell printing

Examples

Experimental program
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Embodiment 1

[0038] Such as Figure 1 to Figure 7 As shown, a slurry equalizing device for solar cell printing includes a coating roller 1 and a backing roller 2, and a slit is formed between the coating roller 1 and the backing roller 2 to squeeze the solar cell pole piece printing. Slurry, the slurry layer is coated on the substrate. Both the coating roller 1 and the back roller 2 include a shaft body 3 and a roller body 4 coaxially fixed on the shaft body 3 . The support frame 5 is arranged parallel to the side wall of the frame 6 and is fastened and connected by bolts. The front and rear positions of the support frame 5 relative to the frame 6 can be fine-tuned to adjust the slightly skewed roller body 4 so that the two roller bodies 4 are aligned with each other. parallel.

[0039] The roller detection mechanism 7 is used to detect whether the generatrices of the coating roller 1 and the back roller 2 are parallel, and it is installed at both ends of the coating roller 1 or the back...

Embodiment 2

[0049] The difference between this embodiment and embodiment 1 is that the roller correction mechanism 25 is added, such as Figure 8 As shown, the roller body correction mechanism 25 is installed on the frame 6. When the alarm component sends out an alarm signal, the roller body correction mechanism 25 can automatically correct the roller body 4 so that the generatrices of the coating roller 1 and the back roller 2 are parallel.

[0050] The roller body correction mechanism 25 includes a support body 26, a correction block 27 and an adjustment drive assembly. The support body 26 is fixedly installed on the frame 6, and the correction block 27 is provided with an arc-shaped correction surface 28 adapted to the two shaft bodies 3 , Under normal conditions, the correction surface 28 does not contact the shaft body 3, so the shaft body 3 can rotate freely. Adjusting the drive assembly can drive the two correction blocks 27 to move away from each other so that the correction surfa...

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Abstract

The invention provides a slurry equalizing device and a slurry pressing method for solar cell printing. The slurry equalizing device includes a coating roller and a backing roller, and a slit is formed between the coating roller and the backing roller to squeeze the slurry ; The roller body detection mechanism is used to detect whether the busbars of the coating roller and the back roller are parallel. The roller body detection mechanism is installed on the end of the coating roller or the back roller. Responsive element and alarm assembly, the point light source is installed on the end surface of the coating roller or the back roller and the light output direction faces the light response element, the light response element is installed on the circuit board opposite to the point light source, and is used to respond to the light energy emitted by the point light source. Generate electrical signal changes; the alarm component is used to respond to the electrical signal changes of the light response element to send out alarm signals. The invention can solve uneven coating of the slurry and ripples on the surface of the slurry layer, and can automatically detect the uniformity fluctuation of the coating process.

Description

technical field [0001] The invention belongs to the technical field of battery manufacturing, and in particular relates to a paste equalizing device and a paste pressing method for solar cell printing. Background technique [0002] Electrode slurry coating is an important process in the production process of solar cells, which refers to coating the evenly stirred slurry on the positive and negative current collectors. Roller coating is a commonly used slurry coating method. When rolling, two parallel pressure rollers rotate synchronously and reversely, and the slurry is transferred to the pole piece substrate by the rotation of the two rollers. The rotation of the coating roller makes the The slurry passes through the gap between the two rollers to form a uniform slurry layer, and then is further compacted, dried, and wound up. [0003] During the rolling process, the pressure of the roll on the slurry is the resultant force of the vertical direction and the horizontal dire...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05C1/08
CPCB05C1/0873B05C1/0821B05C1/0895B05C1/0865
Inventor 黄奉康张群冷青松耿心彤李鹏赵军
Owner JIANGSU ZHENGNENG ELECTRONICS TECH CO LTD