Power conversion device

A power conversion device, having a main circuit board, a first board, and a second board, comprising:

• a first circuit located in a high-power section;
• wherein said main circuit board has
• a rectifier circuit that rectifies AC voltage and outputs DC voltage, and
• an inverter circuit that inverts said DC voltage and outputs AC power, in said high-power section;
• wherein said second board has a second circuit located in a low-power section,
• wherein said first board is connected to said main circuit board and said second board,
• wherein said first board has a reinforced insulation area for reinforcing and insulating said high-power section and said low-power section;
• an isolation transformer, which is located in said reinforced insulation area and is a component of a power supply circuit that receives said DC voltage and supplies power to said first and second circuits, and
• an insulating element, disposed in said reinforced insulation area, transfers signals between said first circuit and said second circuit;
• wherein said first board (102) is erected on the main circuit board,
• wherein said main circuit board is equipped with a terminal block to receive the AC voltage, and
• wherein said first board faces the side of said terminal block.

A power conversion device, having a main circuit board, a first board, and a second board, comprising:

• a first circuit located in a high-power section;
• wherein said main circuit board has
• a rectifier circuit that rectifies AC voltage and outputs DC voltage, and
• an inverter circuit that inverts said DC voltage and outputs AC power, in said high-power section;
• wherein said second board has a second circuit located in a low-power section,
• wherein said first board is connected to said main circuit board and said second board,
• wherein said first board has a reinforced insulation area for reinforcing and insulating said high-power section and said low-power section;
• an isolation transformer, which is located in said reinforced insulation area and is a component of a power supply circuit that receives said DC voltage and supplies power to said first and second circuits, and
• an insulating element, disposed in said reinforced insulation area, transfers signals between said first circuit and said second circuit;
• wherein said first and second boards are arranged vertically, and the second board faces the main circuit board.