| 摘要 |
A junction box for a photovoltaic component comprises a base (1) and a cover (2). At least two junction devices (3) are disposed on the base (1). Two adjacent junction devices (3) are electrically connected with each other by a diode (4). Each junction device (3) comprises a metal connector (31) which has a horizontal sunken cambered surface (311) and is locked on the base (1). One end of the metal connector (31) is used for connecting with a busbar of the photovoltaic component, and the other end is connected with the connecting terminal (5) coupled with a photovoltaic cable. Pins of the diode (4) are provided with bended vertical portions (41) and horizontal portions (42). Each vertical portion (41) is connected with the metal connector (31) via a cylindrical contact. Each horizontal portion (42) is kept closed to the sunken cambered surface (311). A main body heat emission device (6) and a pin heat emission device (7) which be contacted with the inner surface of the cover (2) respectively are disposed own the diode (4); thereby the working heat of the diode (4) is transmitted to the cover (2) directly and is emitted. |
