Power conversion module and magnetic device thereof

A power conversion module, comprising:

• a magnetic device comprising:
• a magnetic core assembly comprising:
• a first magnetic leg;
• a second magnetic leg;
• a third magnetic leg, wherein the first magnetic leg and the third magnetic leg are opposed to each other;
• a fourth magnetic leg, wherein the second magnetic leg and the fourth magnetic leg are opposed to each other, and the first magnetic leg and the third magnetic leg are disposed between the second magnetic leg and the fourth magnetic leg;
• a first winding groove, wherein a first part of the first winding groove is disposed between the first magnetic leg and the second magnetic leg, and a second part of the first winding groove is disposed between the second magnetic leg and the third magnetic leg;
• and
• a second winding groove, wherein a first part of the second winding groove is disposed between the first magnetic leg and the fourth magnetic leg, and a second part of the second winding groove is disposed between the third magnetic leg and the fourth magnetic leg;
• a first winding, wherein an input terminal of the first winding is disposed within the first part of the first winding groove, and an output terminal of the first winding is disposed within the second part of the second winding groove;
• and
• a second winding, wherein an input terminal of the second winding is disposed within the first part of the second winding groove, and an output terminal of the second winding is disposed within the second part of the first winding groove,
• wherein an air gap of each of the second magnetic leg and the fourth magnetic leg is longer than an air gap of each of the first magnetic leg and the third magnetic leg, and a magnetic resistance of each of the second magnetic leg and the fourth magnetic leg is greater than a magnetic resistance of each of the first magnetic leg and the third magnetic leg, wherein the first winding groove and the second winding groove are in connection with each other through a connection region, the part of the first winding and the part of the second winding in the connection region intersect each other;
• a first power component electrically connected with the input terminal of the first winding;
• and
• a second power component electrically connected with the input terminal of the second winding.