Coil unit, substrate unit and power supply device

A coil unit, comprising:

• a primary print-coil substrate in which a conductor pattern is formed inside a flat substrate;
• a secondary print-coil substrate which is stacked above the primary print-coil substrate and in which a conductor pattern is formed inside a flat substrate;
• and
• a U-shaped terminal which is comprised a U-shaped conductor and electrically connects the conductor pattern of the primary print-coil substrate with the conductor pattern of the secondary print-coil substrate;
• wherein
• the primary print-coil substrate is provided with a first connection terminal part which is formed so as to have a through hole electrically connected to the conductor pattern,
• the secondary print-coil substrate is provided with a second connection terminal part which is formed so as to have a through hole electrically connected to the conductor pattern, and
• two open ends of the U-shaped terminal are respectively inserted through the first connection terminal part and the second connection terminal part from above the secondary print-coil substrate.