US 12,021,487 B2
Photovoltaic inverter
Hao Zheng, Anhui (CN); Qiyao Zhu, Anhui (CN); Jun Tan, Anhui (CN); and Yu Gao, Anhui (CN)
Assigned to SUNGROW POWER SUPPLY CO., LTD., Anhui (CN)
Filed by SUNGROW POWER SUPPLY CO., LTD., Anhui (CN)
Filed on Jun. 11, 2021, as Appl. No. 17/345,124.
Claims priority of application No. 202010542024.5 (CN), filed on Jun. 15, 2020.
Prior Publication US 2021/0391824 A1, Dec. 16, 2021
Int. Cl. H02S 40/42 (2014.01); H02S 40/32 (2014.01); H05K 7/20 (2006.01)
CPC H02S 40/42 (2014.12) [H02S 40/32 (2014.12); H05K 7/20909 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A photovoltaic inverter comprising:
a cabinet; and
a power module arranged in the cabinet, wherein
the power module comprises an inverter power unit, a first ventilating passage and a second ventilating passage;
the second ventilating passage is isolated from the first ventilating passage;
the inverter power unit is arranged upstream of the first ventilating passage in a direction in which air is inputted;
the first ventilating passage is provided with a first air inlet and a first air outlet; and
the second ventilating passage is provided with a second air inlet and a second air outlet, wherein the second ventilating passage comprises a capacitor cell side passage and a direct current side passage, a capacitor cell is arranged upstream of the capacitor cell side passage, an alternating current power distribution unit is arranged downstream of the capacitor cell side passage, and a direct current power distribution unit is arranged in the direct current side passage.