COIL COMPONENT
FIG4 is a right side view showing the coil member of FIG3 in a direction C
As shown in FIG4, there is a gap 26a, 26b between an inner surface of a thin portion of the resin case 3 (4a, 4b) and an outer surface of the magnetic core 250, on the end side of the magnetic core 250. In the figure, the gaps 26a, 26b are marked by black for clarity. As shown in FIG3, each projection plate 25a, 25b is a thin plate portion extending from the resin case 3 in the assembling direction of the coil members, slightly receding from an outer surface of the resin case 3. Each projection plate 25a, 25b is in a U shape when viewed in the assembling direction, such that it partially surrounds the magnetic core 250. A projection plate of one coil member can be inserted into the gap of the other coil member. Namely, the projection plate 25a is inserted into the gap 26a, and the projection plate 25b is inserted into the gap 26b, between the opposing coil members. In a state where the coil members 2a, 2b are assembled, abutting portions of the opposing magnetic cores 250 are surrounded by the projection plates 25a, 25b of the reinforcing parts, providing high strength to the connecting portions. Before the coil members 2a, 2b are adhered, the movement of the coil members can be limited in the assembling direction. As a result, cooperating with the connecting parts, the disconnection of the coil members 2a, 2b can be prevented during production.
right side view
21
arm portions arm portion
30
flanges flange
250
magnetic core magnetic cores
22
portions
['1. A coil device comprising a pair of annularly assembled coil members each comprising a coil arranged on a resin case containing a U-shaped magnetic core; each of said coil members having connecting portions on both end sides of said magnetic core; each of said connecting portions having a connecting part and a reinforcing part; said reinforcing part being constituted by a gap between an inner wall of the resin case and an outer wall of the magnetic core, and a projection plate extending in the assembling direction of the coil members, a projection plate of one coil member being insertable into the gap of the other coil member; and said connecting part comprising a hook-shaped projection extending in said assembling direction and a projection receiver, the hook-shaped projection of one coil member being loosely fittable into the projection receiver of the other coil member.', '7. The coil device according to any one of claims 1-6, wherein said resin case has flanges for positioning said coil.']