Module diode of solar cell junction box

Abstract

The invention provides a module diode of a solar cell junction box. The module diode specifically comprises a positive terminal, a negative terminal, a diode chip and a packaging body, wherein two ends of the positive terminal and the negative terminal are respectively a wiring terminal and a chip terminal, the positive terminal of the diode chip is fixedly connected with the chip terminal of the positive terminal, the negative terminal of the diode chip is connected with the chip terminal of the negative terminal through a jumper wire, and the chip terminal of the positive terminal, the chip terminal of the negative terminal and the diode chip are all packaged in the packaging body; wiring ends of the positive terminal and the negative terminal are provided with bus bar through holes through which bus bars pass; wiring ends of the positive terminal and the negative terminal are respectively provided with a wiring part used for being connected with a cable and a welding part used for being welded with a bus bar, the welding parts are located beside the bus bar through holes, one end of each welding part is integrally connected with the corresponding wiring end, and the other end of each welding part is in a tilting state; the side part of the terminal is also provided with a flange, and at least part of the flange extends to the side of the bus bar through hole.

Description

technical field [0001] The invention belongs to the technical field of solar energy utilization, and in particular relates to a module diode of a solar cell junction box. Background technique [0002] The utility model patent with the patent application number 201920813832.3 discloses a module of a solar cell junction box, including a package body, a positive terminal, a negative terminal, and a diode chip. The right end of the positive terminal is provided with a positive terminal nose, and the left part is provided with a The right strip hole, the left end of the negative terminal is provided with a negative terminal nose, and the right part is provided with a left strip hole; the diode chip is welded and fixed on the positive terminal and is located on the left side of the right strip hole, the diode chip One pole of one pole is electrically connected to the positive terminal, and the other pole is connected to the negative terminal through a jumper wire; the package incl...

AI Technical Summary

Problems solved by technology

[0003] When the module diode in the above-mentioned patent is welded to the bus bar of the solar cell, since the welding position is at the horizontal position of the terminal, it is impossible to use the two electrodes of resistance welding to clamp and weld this place with the bus bar, so only ferrochrome can be used. The method of soldering the bus bar to the terminal by adding tin wire is not only low in welding efficiency, but also difficult to guarantee the quality of welding, and there are prone to failure risks such as virtual soldering and empty soldering.

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