The direct current generated by the solar module is converted into alternating current by the photovoltaic inverter and fed to the power grid. During this process, the current in each branch cable needs to be converted to the bus cable. This connection structure is T branch solar connector, which usually includes a male end (bus end) and a female end (branch end). The male end leads out each core wire in the bus, and the female end is provided with a terminal that is electrically connected to each core wire. , the male end and the female end are plugged to form a T type of branch wire and the bus electrical connection form.

In the current technology, it is generally necessary to strip the leads from the bus, wrap the leads on the exposed core wire, and then wrap the exposed part of the cable with electrical tape to complete the parallel connection of the leads. This method has problems such as poor manual wiring stability and insufficient firmness, which affects the electrical conduction performance, and has low processing efficiency and difficulty in mass production. For this reason, the method of connecting the terminals on each core wire is used to realize the lead wire of the bus through the processes of stripping, punching the terminal, fitting the main body of the male end, and encapsulating the glue. Terminal set the main body of the female end, and finally complete the encapsulation process.

Due to the use of metal terminals, the connection stability and firmness are greatly improved compared with manual winding, but the complexity of the operation has not been significantly improved, and manual participation is still required, so the processing efficiency has not been improved. increase, affecting the progress of mass production. In addition, whether it is the male end or the female end, it is necessary to set an overcoat layer on the outer layer, that is, the overcoat layer is used to ensure the waterproofness of the connector, but this process will definitely require opening the mold, which increases the production cost on the one hand. On the other hand, the process is complicated, which reduces the assembly efficiency of the whole set of connectors and affects the improvement of production volume.