Assembly structure of transformer and circuit board as well as assembly method thereof

An assembly structure of a transformer and a circuit board, comprising:

• a circuit board;
• a packaging chip, disposed on the circuit board;
• a transformer, having at least one first output electrode and at least one second output electrode connected to the first output electrode;
• a first conductive plate, disposed on the transformer and connected to the at least one first output electrode;
• a second conductive plate, disposed on the transformer and connected to the at least one second output electrode and the circuit board;
• and
• a first heat sink, connected to the packaging chip and the first conductive plate, disposed on the circuit board, and connected to the circuit board and the first conductive plate;
• wherein one end of the first heat sink extends downward to be inserted in and connected to the circuit board, the packaging chip is attached to the first heat sink, an extending direction of the packaging chip and the first heat sink is substantially perpendicular to the circuit board.