Note: Soldering three brass connectors in a solar panel junction box assembly

Objective:

Solder three brass connectors one at a time in a solar panel junction box without affecting the components in the junction box

End Product:

solar panel junction box

Equipment:

Ambrell 4.2 kW induction heating system, equipped with a remote workhead containing one 1.0μF capacitor.  An induction heating coil designed and developed specifically for this application.

Materials:

Solar panel junction box, brass connectors, solder wire

Temperature:

700 °F (371 °C)

Frequency:

344 kHz

Testing:

A three turn oval shaped helical coil is used to heat the connectors. A piece of solder wire is placed onto the joint area and each joint is heated separately for 5 seconds to solder the connector. The total process time is 15 seconds for the three joints.

Benefits:

Induction heating provides:

  • Pinpoint accuracy deliver heating only to joint; does not affect surrounding components

  • Localized heat produces neat and clean joints

  • Produces high quality, repeatable results

  • Even distribution of heating 

Soldering three brass connectors in a solar panel junction box assembly

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