Magnetic component

Abstract

A magnetic component includes a magnetic core and a first winding module. The magnetic core has two opposite openings and at least one magnetic column. The first winding module has a plurality of annular metal plates disposed around the at least one magnetic column. Each of the annular metal plates has an electrical connection end, an annular portion and a heat-dissipating end. The electrical connection end and the heat-dissipation end are located at the two opposite openings of the magnetic core respectively. A thermal-dissipating area of the heat-dissipating end is greater than a cross-sectional area of a connection portion between the heat-dissipating end and the annular portion.

What is claimed is: 
     
         1 . A magnetic component comprising:
 a magnetic core having two opposite openings and at least one magnetic column; and   a first winding module having a plurality of annular metal plates are through by the at least one magnetic column, wherein each annular metal plate has an electrical connection end, an annular portion, and a heat-dissipating end, the electrical connection end and the heat-dissipation end are located aligned with the two opposite openings of the magnetic core respectively, a thermal dissipation area of the heat-dissipating end is greater than a cross-sectional area of a connection portion between the heat-dissipating end and the annular portion.   
     
     
         2 . The magnetic component of  claim 1 , wherein a cross-section of the heat-dissipating end and the annular portion collectively define an L-shaped cross-section. 
     
     
         3 . The magnetic component of  claim 1 , wherein a cross-section of the heat-dissipating end and the annular portion collectively define a T-shaped cross-section. 
     
     
         4 . The magnetic component of  claim 1 , wherein the heat-dissipating end of each annular metal plate protrudes out of the aligned one of the two opposite openings. 
     
     
         5 . The magnetic component of  claim 1 , wherein a total sum of the thermal dissipation areas of the first winding module is greater than or equal to an area of the aligned one of the two opposite openings. 
     
     
         6 . The magnetic component of  claim 1 , wherein the heat-dissipating ends of the annular metal plates are electrically insulated from each other. 
     
     
         7 . The magnetic component of  claim 1 , wherein each electrical connection end has a barb structure, which engages a printed circuit board. 
     
     
         8 . The magnetic component of  claim 1 , wherein each annular metal plate is a single coil of circuit. 
     
     
         9 . The magnetic component of  claim 1 , wherein at least part of the annular metal plates are electrically coupled with one another to form multiple coils of circuit. 
     
     
         10 . The magnetic component of  claim 1 , wherein each annular metal plate is an annular cooper plate. 
     
     
         11 . The magnetic component of  claim 1 , wherein the magnetic core has an inner chamber within which a thermal resin is filled. 
     
     
         12 . The magnetic component of  claim 1 , wherein each electrical connection end has a protrusion portion that has a height. 
     
     
         13 . The magnetic component of  claim 1  further comprising a second winding module, wherein the second winding module comprises a plurality of bobbins, the annular metal plates and the bobbins are alternately disposed within the magnetic core, wherein the second winding module further comprises a plurality of coil wires wound around each of the bobbins. 
     
     
         14 . The magnetic component of  claim 13 , wherein each bobbin has a plurality of wire management slots arranged symmetrically. 
     
     
         15 . The magnetic component of  claim 13 , wherein each bobbin has a convex position block, the electrical connection end of each annular metal plate has a notch, the convex position block engages the notch when the bobbins and the annular metal plates are assembled within the magnetic core. 
     
     
         16 . The magnetic component of  claim 13 , wherein the coil wires constitute three layers insulated wires. 
     
     
         17 . The magnetic component of  claim 14 , wherein each coil wire has an end that is led through corresponding ones of the wire management slots and electrically connected to a lead terminal. 
     
     
         18 . The magnetic component of  claim 14 , wherein the magnetic component is a transformer. 
     
     
         19 . An automotive power supply comprising:
 a water-cooling metal block having a concave portion; and   the magnetic component of  claim 1  installed within the concave portion, and the heat-dissipating end of each annular metal plate thermally contacting the water-cooling metal block.   
     
     
         20 . The automotive power supply of  claim 19  further comprising a first printed circuit board coupled with the electrical connection end of each annular metal plate. 
     
     
         21 . The automotive power supply of  claim 19  further comprising a second printed circuit board coupled with the heat-dissipating end of each annular metal plate.