Solar photovoltaic assembly wiring box convenient to fix and reliable to weld

Abstract

The invention relates to a solar photovoltaic assembly wiring box convenient to fix and reliable to weld. The solar photovoltaic assembly wiring box convenient to fix and reliable to weld comprises a wiring box body, wherein a metal piece leading-out wire is arranged in the wiring box body; the front end of the metal piece leading-out wire is provided with a groove and an opening; the opening is formed in the front end of the groove. The solar photovoltaic assembly wiring box convenient to fix and reliable to weld can be used for conveniently and fast clamping a welding belt at the opening of the metal piece leading-out wire for fixing the welding belt, so that the reduction of the effective contact area of the metal piece leading-out wire, caused by left-ring skewing of welding belt during welding, can be limited, and the rate that the welding belt breaks away from the metal piece leading-out wire is reduced; melt welding tin is encircled in the groove, and an insufficient welding phenomenon generated by a fact that the welding tin is melt to flow out from the periphery of the plane of the metal piece leading-out wire is avoided; one edge of the groove is communicated with the opening, the melt tin only can flow out from the opening end of the groove to be connected with the welding belt pasted on the opening end, so that the relatively reliable welding is achieved.

Description

technical field [0001] The invention relates to the technical field of solar photovoltaic module junction boxes, in particular to a solar photovoltaic module junction box that is convenient for fixing and reliable welding. Background technique [0002] Photovoltaic cells are devices that directly convert solar radiation energy into electrical energy. Photovoltaic modules are products that are connected and packaged by multiple photovoltaic cells. They are the basic units of battery arrays in photovoltaic power generation systems. Photovoltaic module junction box is the key connection device of the solar module system. The function of the junction box is to ensure the reliable connection of the circuit and prevent the hot spot effect when the solar module is partially blocked. If the connection point between the inside of the junction box and the photovoltaic cell is weakly welded or the solder joint falls off, the entire solar module system will not work normally, and the mo...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in order to overcome the existing metal sheet lead-out line in the junction box of the solar photovoltaic module is a straight metal sheet, the welding spot is arranged on the metal sheet lead-out line, when manually welding the welding strip, the welding The strip is offset due to the fluidity of the molten solder, resulting in a reduction in the effective connection area with the lead-out wire of the metal sheet; at the same time, the molten solder is easy to flow from the surroundings of the metal sheet, and eventually it is easy to cause virtual welding between the solder strip and the metal sheet , The diode inside the junction box generates heat, and the soldering point falls off, causing the circuit to be interrupted and affecting the normal use of the problem. Provide a solar photovoltaic module junction box that is easy to fix and reliable welding

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