| CPC H05K 7/20909 (2013.01) [H02J 9/062 (2013.01)] | 8 Claims |

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1. An uninterruptible power supply system comprising:
a housing that houses components of the uninterruptible power supply system;
a cooling fan that cools the interior of the housing;
a group of electrical components that constitute the uninterruptible power supply system and are disposed in a first block of the housing;
the other group of electrical components that constitute the uninterruptible power supply system and are disposed in a second block of the housing; and
a partition structure that is disposed adjacent to an exhaust side of the second block to adjust an air flow flowing through the first block and the second block,
the group of electrical components including an electrical component through which an AC current flows, and
the other group of electrical components including an electrical component through which a DC current flows.
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