Magnetic component
A magnetic component includes a first core component, a second core component and at least one coil. The first core component includes a first molding bobbin covering a first part of a core set by an injection molding process. The second core component includes a second molding bobbin covering a second part of the core set by the injection molding process. The first core component is assembled with the second core component to form a first pillar and a second pillar. Each of the first pillar and the second pillar includes a plurality of cores stacked with each other in a direction toward an outside or inside of the magnetic component. The at least one coil is wound on at least one of the first pillar and the second pillar.
1 . A magnetic component comprising:
a first core component comprising:
a first molding bobbin covering a first part of a core set by an injection molding process;
a second core component comprising:
a second molding bobbin covering a second part of the core set by the injection molding process, the first core component being assembled with the second core component to form a first pillar and a second pillar, each of the first pillar and the second pillar comprising a plurality of cores stacked with each other in a direction toward an inside of the magnetic component, a length of the first pillar being larger than a length of the second pillar;
at least one coil being wound on at least one of the first pillar and the second pillar;
a first outer flange structure disposed at a joint of the first pillar of the first core component or the second core component and located between the plurality of cores; and
a second outer flange structure disposed at a joint of the second pillar of the first core component or the second core component and located between the plurality of cores;
wherein the first outer flange structure and the second outer flange structure are parts of the first molding bobbin and the second molding bobbin;
wherein the first outer flange structure and the second outer flange structure prevent tolerance of the plurality of cores from affecting shapes of the first core component and the second core component.
2 . The magnetic component of claim 1 , wherein a shape of the first core component is identical to a shape of the second core component.
3 . The magnetic component of claim 1 , wherein each of the first molding bobbin and the second molding bobbin has an opening away from each of the joints of the first pillar and the second pillar, and one of the cores is exposed from the opening.
4 . The magnetic component of claim 1 , further comprising:
a base;
a first fixing component configured to fix the first core component on the base; and
a second fixing component configured to fix the second core component on the base;
wherein joints of the first core component and the second core component are opposite to each other without being fixed.
5 . The magnetic component of claim 1 , wherein the first pillar has at least one first gap, the second pillar has at least one second gap, and a total of the at least one first gap is as large as a total of the at least one second gap.
6 . The magnetic component of claim 5 , further comprising:
a first spacer structure disposed in the first gap; and
a second spacer structure disposed in the second gap, a thickness of the first spacer structure being as large as a thickness of the second spacer structure.
7 . The magnetic component of claim 6 , wherein the first spacer structure and the second spacer structure are injection molding materials formed by the injection molding process.
8 . The magnetic component of claim 6 , wherein the first spacer structure and the second spacer structure are spacer sheets.
9 . The magnetic component of claim 1 , wherein the core set has a winding portion and a non-winding portion, a first width of the winding portion is larger than a second width of the non-winding portion, a third width of the winding portion is smaller than a fourth width of the non-winding portion, and a product of the first width and the third width is equal to a product of the second width and the fourth width.
10 . The magnetic component of claim 1 , further comprising a plurality of spacer sheets, each of the spacer sheets being located between two of the cores.
11 . The magnetic component of claim 10 , wherein the cores and the spacer sheets are connected by adhesive or connected by the injection molding process.
12 . The magnetic component of claim 10 , wherein a filling space exists between the core and an indented structure of the spacer sheet, such that an injection molding material is filled in the filling space by the injection molding process.
13 . The magnetic component of claim 1 , further comprising a temperature sensor disposed adjacent to the at least one coil, at least one recess being formed on at least one inner surface of the first molding bobbin and the second molding bobbin, the temperature sensor being disposed at a position corresponding to the at least one recess, the recess being configured to accommodate at least a part of the at least one coil.
14 . The magnetic component of claim 13 , further comprising:
a holder disposed adjacent to the at least one coil; and
a thermal conductive member disposed on the holder, the temperature sensor being disposed on the thermal conductive member.
15 . The magnetic component of claim 1 , wherein the first outer flange structure is disposed between longitudinal cores in the first pillar, and the second outer flange structure is disposed between longitudinal cores in the second pillar.
16 . The magnetic component of claim 1 , wherein there is no gap between longitudinal cores of the first and second pillars and a first transverse core, and there is no gap between the longitudinal cores of the first and second pillars and a second transverse core.
17 . The magnetic component of claim 1 , wherein there are only two joints of the first and second pillars between the first core component and the second core component.
18 . The magnetic component of claim 1 , wherein the plurality of cores is divided into a first part of the first core component and a second part of the second core component, and the first part and the second part are stacked with each other in two opposite directions.