Solar cell sintering furnace

By setting threaded grooves and optimizing the gas distribution structure in the solar cell sintering furnace, the problem of poor contact between nitrogen and hydrogen and solar cells was solved, resulting in more uniform gas contact and higher sintering quality.

CN224434963UActive Publication Date: 2026-06-30CHUZHOU JIETAI NEW ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHUZHOU JIETAI NEW ENERGY TECH CO LTD
Filing Date
2025-08-13
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In existing solar cell sintering furnaces, the contact effect between nitrogen and hydrogen and solar cells is poor, which affects the sintering quality.

Method used

A threaded groove is set on the outer periphery of the conveying roller. The threaded groove guides the airflow to form a vortex, which enhances the contact effect between the gas and the solar cell. The gas distribution is optimized by the inclined air inlet and the guide component. Combined with the multi-chamber design and independent gas delivery system, uniform contact between the gas and the solar cell is ensured.

Benefits of technology

This improves the sintering quality of solar cells, ensures sufficient contact between the gas and the silver paste, reduces temperature differences, and enhances sintering consistency and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a solar cell sintering furnace, comprising a furnace body, a gas conveying assembly, and multiple conveying rollers. The furnace body is hollow to form a receiving cavity; the gas conveying assembly is connected to the receiving cavity; the multiple conveying rollers are rotatably spaced within the receiving cavity along a predetermined direction, and each conveying roller has threaded grooves on its outer periphery. By providing threaded grooves on the outer periphery of the conveying rollers, when the conveying rollers rotate within the receiving cavity to convey solar cells, the threaded grooves on the outer periphery of the conveying rollers can guide the airflow to form vortices, thereby allowing gases such as nitrogen and hydrogen to contact the surface of the solar cells more evenly and fully, thus improving the sintering quality of the solar cells.
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