| 摘要 |
To provide a technique whereby the heat generated by circuit elements of a power conditioner, particularly by elements that generate large amounts of heat, is satisfactorily released and not confined within a housing when a housing for outdoor installation is endowed with a sealed structure for the purpose of waterproofing, and particularly to provide a novel configuration taking into account the heat generated by a reactor that generates a large amount of heat. [Solution] A power conditioner in which a step-up part for boosting a direct-current voltage generated by a solar cell, an inverter part for converting the direct-current electrical power boosted by the step-up part into alternating-current electrical power, and a filter part for shaping the waveform of the alternating-current electrical power converted by the inverter part are housed in a housing having a sealed structure, wherein: at least a portion of a back wall of the housing comprises a heat sink; a printed wiring board is disposed parallel to a base part of the heat sink, a space being present between the printed wiring board and the heat sink; and a heat-generating element of the step-up part is connected to the printed wiring board on the side of the space and attached in thermally conducting fashion to the base part of the heat sink via a thermal conducting block at a position removed from the printed wiring board. |
