Solar junction box is the "regulatory center" of photovoltaic pv modules
The photovoltaic solar junction box is a connection and protection device in the square array composed of photovoltaic modules. Its main function is to connect the power generated by the solar cell modules with the outside world, and transmit the power generation current generated by the PV photovoltaic modules. In addition, the bypass protection circuit is automatically activated when the photovoltaic module has a hot spot effect due to pollution shading, which plays a role in protecting the module. Solar Connectors are necessary components for electrical connection of circuit systems.
The junction box can transmit the current generated in the module to the external wiring, and the diode performance in its structure is to form a bypass path to maintain normal operation in the event of a module failure (bypass diode), and prevent current flow in low light (blocking diode), etc. Role; from the perspective of cost ratio, the "raw material + processing fee" pricing model is mostly used in the welding ribbon link, and the price is greatly affected by the price fluctuations of raw material copper and tin. 2.6%, -0.7pct year-on-year; the junction box link is relatively stable, accounting for 2.6% of the component cost in 2021, +0.1pct year-on-year, and the cost change is small. Photovoltaic junction boxes account for 2.6% of module costs:
The cost of solar junction box only less than 3% of components, but safety is extremely important:
By splitting the cost of components, it can be seen that photovoltaic junction boxes account for about 2.6% of the cost of components. Although the cost is not high and the value is small,because the photovoltaic junction box still is a key component of equipment such as connecting components, inverters, and combiner boxes in the photovoltaic power station system, once the product quality has problems, it is easy to cause accidents such as fire in the power station. Security is extremely important. For downstream module clients, they don’t easy to replace the supplier once they selected the trusted supplier.
XinDongKe energy has many experiences on the components of solar pv modules and we have exported to European, American, Africa more than 60 countries until now.
We supply with reasonable price,product of high-quality and good after-sales service.
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