An online tin coating equipment for spotlight welding strip

Abstract

The invention discloses online tin coating equipment for a light condensation welding strip. The online tin coating equipment comprises a heating control device, an upper plate and a lower plate, wherein one side of the upper plate is hinged to one side of the lower plate. The upper plate is provided with a tin wire feeding mechanism and a through hole allowing a tin wire to pass through. The lower plate communicates with a heat dissipation mechanism and is provided with an induction coil and a welding strip guide plate. The induction coil and the heating control device are electrically connected. The tin wire penetrates through the through hole and moves to the position a certain distance away from the lower plate through the tin wire feeding mechanism, the tin wire and the induction coil generate electromagnetic induction, the tin wire melts, and a tin coating is formed on the surface of the light condensation welding strip. After tin coating is completed, the tin wire retracts by a certain distance through the tin wire feeding mechanism so as to be separated from the electromagnetic induction area for use next time. Through the structural design, the tin coating work before welding of the light condensation welding strip and a solar crystal silicon cell is achieved, and the light condensation welding strip without tin coatings can be well welded to the back face of the cell.

Description

technical field [0001] The invention relates to the technical field of photovoltaic ribbons, and more specifically relates to an online tin coating device for concentrating ribbons. Background technique [0002] The improvement of the power of crystalline silicon solar modules is a main direction of module research and development at present. Studies have shown that the power of components welded with spotlight ribbons can be increased by about 1% compared with components welded with conventional ribbons. [0003] Compared with the conventional soldering ribbon, the front of the concentrating ribbon is coated with silver and other concentrating materials. When performing the cell stringing process, because the front coating does not contain tin, the front of the soldering ribbon cannot be welded to the back of the cell normally, thus Unable to get desired spotlight ribbon assembly. [0004] To sum up, how to effectively solve the problem that the concentrating ribbon is di...

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Problems solved by technology

[0005] In view of this, the object of the present invention is to provide an on-line tin coating equipment for concentrating solder ribbons, the structural design of the online tin coating equipment can effectively solve the problem that the concentrating solder ribbons are difficult to be effectively welded to solar crystalline silicon cells. question

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