Two-split type photovoltaic module and junction box and combined structure thereof

The utility model relates to a two-split type photovoltaic assembly and a junction box and a combined structure thereof, and the two-split type photovoltaic assembly comprises a two-split type photovoltaic assembly which comprises a conducting strip group provided with a plurality of bus bar installation grooves. The conducting strip group comprises a conducting strip I, a conducting strip II and a conducting strip III, the conducting strip II and the conducting strip III are electrically connected with the conducting strip I through a PN junction chip and a jumper wire respectively, the PN junction chip and the jumper wire are wrapped with an insulator, and the insulator is at least partially overlapped with the conducting strip I, the conducting strip II and the conducting strip III; the insulator is also provided with a plurality of groups of heat dissipation receding grooves and bus bar receding grooves. And each group of heat dissipation receding grooves and bus bar receding grooves are at least partiall