A power conversion module comprising a power converter including a printed circuit board (231, 201), the power converter comprising: a first printed circuit (231, 431) board having a first controller (251, 451) for power conversion disposed on a first surface of the first printed circuit board (231, 431), the first surface of the first printed circuit board (231, 431) constituting an inner surface of the power converter; a second printed circuit (201, 401) board having a second controller (221, 421) for power conversion disposed on a first surface of the second printed circuit board (201, 401), the first surface of the second printed circuit board (201, 401) facing the first surface of the first printed circuit board (231, 431) and constituting an inner surface of the power converter; first connectors (241, 243, 441, 443) disposed on the first surface of the first printed circuit board (231, 431); and second connectors (211, 213, 411, 413) disposed on the first surface of the second printed circuit board (201, 401), the second connectors (211, 213, 411, 413) configured to be coupled with the first connectors (241, 243, 441, 443), wherein the second controller (221, 421) comprises a control circuit for controlling the first controller (251, 451), the power conversion module further comprising: a first heat sink plate fixedly coupled to a second surface of the first printed circuit board opposite the first surface thereof; and a second heat sink plate fixedly coupled to a second surface of the second printed circuit board opposite the first surface thereof. a first printed circuit (231, 431) board having a first controller (251, 451) for power conversion disposed on a first surface of the first printed circuit board (231, 431), the first surface of the first printed circuit board (231, 431) constituting an inner surface of the power converter; a second printed circuit (201, 401) board having a second controller (221, 421) for power conversion disposed on a first surface of the second printed circuit board (201, 401), the first surface of the second printed circuit board (201, 401) facing the first surface of the first printed circuit board (231, 431) and constituting an inner surface of the power converter; first connectors (241, 243, 441, 443) disposed on the first surface of the first printed circuit board (231, 431); and second connectors (211, 213, 411, 413) disposed on the first surface of the second printed circuit board (201, 401), the second connectors (211, 213, 411, 413) configured to be coupled with the first connectors (241, 243, 441, 443), wherein the second controller (221, 421) comprises a control circuit for controlling the first controller (251, 451), the power conversion module further comprising: a first heat sink plate fixedly coupled to a second surface of the first printed circuit board opposite the first surface thereof; and a second heat sink plate fixedly coupled to a second surface of the second printed circuit board opposite the first surface thereof. a first heat sink plate fixedly coupled to a second surface of the first printed circuit board opposite the first surface thereof; and a second heat sink plate fixedly coupled to a second surface of the second printed circuit board opposite the first surface thereof.