Junction box variety of how to choose

The current market types of junction boxes: Type I: traditional. Structural features: the back of the open shell, the shell is equipped with electrical terminals (slider), the solar cell template power output of the convergence of the belt and the corresponding electrical terminals of the input (distribution holes) electrical connection, the cable through the shell side of the holes into the shell and the electrical terminals on the other side of the output end of the hole electrical connection. Advantages: Clamping type connection, fast operation, easy maintenance. Disadvantages: due to the presence of electrical terminals, the junction box is larger, poor heat dissipation. The cable hole on the shell will lead to a decrease in the waterproof performance of the product. Wire contact connection, conductive area is small, the connection is not reliable enough.

The second type: sealing glue sealing compact type. Advantages: Due to the use of sheet metal terminal soldering method, compact size, and has a better heat dissipation, stability. Due to the glue sealing, it has better waterproof and dustproof performance. Provide more flexible connection program, according to different needs can be used to sealing and non-sealing two ways. Disadvantage: Once problems occur after sealing, maintenance is not convenient. Category III: Specialized for glass curtain wall. Advantages: Because it is used for small power photovoltaic panels, the box system is made more small and exquisite, and will not affect the indoor lighting and aesthetics. It is also a sealing design, with good thermal conductivity, stability and waterproof and dustproof performance. Disadvantages: due to the use of tin soldering connection, the cable wire through the two sides of the outlet hole into the box, in the narrow box welding to the metal terminals is extremely inconvenient.LY0803-1-type junction box in the structure of the form of inserts, to avoid the inconvenience of the above processing.