| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat dissipation structure in a collector box for a photovoltaic power generation system, capable of suppressing heat transfer between backflow prevention diode modules and downsizing a housing.SOLUTION: The heat dissipation structure in a collector box for a photovoltaic power generation system includes on an apparatus mounting plate 3, provided on a housing 1: a plurality of branch circuit breakers 4, for opening or closing electric paths of a solar cell module; and a plurality of backflow prevention diode modules 5, each having a positive electrode terminal part 14 of the branch circuit breakers 4 and a plurality of connection terminals 12, wire-connected to positive electrode bars 7. A plurality of the connection terminals 12 of the backflow prevention diode modules 5 is arranged in column in a vertical direction of the housing 1. Between the plurality of neighboring backflow prevention diode modules 5, 5, slits 13 are formed in parallel with the connection terminals 12 arranged in column as gaps extending in the vertical direction of the housing 1.SELECTED DRAWING: Figure 2 |
