Magnetic core and transformer applying same

The invention provides a magnetic core and a transformer applying the magnetic core. The magnetic core comprises a base, a magnetic core middle column, a first side plate and a second side plate, thefirst side of the base comprises a first edge, a second edge, a third edge and a fourth edge, one end of the first edge is connected with one end of the second edge, the first edge and the second edgeform a first V-shaped groove, and one end of the third edge is connected with the other end of the first edge, the third edge horizontally extends outwards, the other end of the fourth edge is connected with the other end of the second edge, the fourth edge horizontally extends outwards, the magnetic core middle column is arranged in the center of the base, the first side plate protrudes upwardsalong the edge of the second side of the base, and the second side plate protrudes outwards along the edge of the third side of the base, and the first side plate and the second side plate are symmetrical. According to the magn