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AssigneeTDK Corporation
InventorsAtsushi Shoji, Makoto Morita, Masatoshi Shindoh, Masatoshi Ozawa
Estimating the term…
A coil component having a core including a winding portion, and first and second flanges disposed one on either end of the winding portion, A winding is wound about the winding portion, and first and second terminal electrodes are disposed on the first flange. The first flange has an octagonal shape including a bottom surface, a first peripheral surface, first and third omitted peripheral surfaces disposed one on either side of the first peripheral surface, a second peripheral surface opposing the first peripheral surface, and second and fourth omitted peripheral surfaces disposed one on either side of the second peripheral surface. The first terminal electrode is disposed across the first omitted peripheral surface, a part of the bottom surface in a region connecting the entire first omitted side to the entire third omitted side, and the third omitted peripheral surface. The second terminal electrode is disposed across the second omitted peripheral surface, a part of the bottom surface in a region connecting the entire second omitted side to the entire fourth omitted side, and the fourth omitted peripheral surface. The winding has a first end electrically connected to the first terminal electrode on the first omitted peripheral surface and a second end electrically connected to the second terminal electrode on the second omitted peripheral surface.
A coil component comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
With magnetic core: with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
Casings: encapsulation
Terminals; Tapping arrangements for signal inductances: surface mounted devices
Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially…:…
About 1 year 8 months of term left · ends 24 Jun 2028 (estimated)
The present invention relates to a coil component and a method and apparatus for manufacturing the same, and particularly to a coil component for a power supply system that has a low height or profile and is suitable for high-density mounting and to a method and apparatus for producing such a coil component.
Coil components provided with a drum core having a pair of flanges and a winding portion connecting the pair of flanges are well known in the art. However, the requirements for high-density mounting in electronic devices such as mobile telephones have become more stringent in recent years with the increase in high performance. Therefore, efforts are being made to reduce the volume and height of coil components, as well as the gap between adjacent coil components, as disclosed in Japanese patent application publication No. 2005-210055.
When the winding is electrically connected to terminal electrodes at the mounting surface, the height of the coil is increased by the height of the connection. The above reference also describes forming a depression in the mounting surface and connecting a winding within this depression. However, since the shape of the core is more complex in this case, the core is more difficult to manufacture, and the strength of the core may be lowered.
In the drawings:
FIG. 1 is a top perspective view showing a coil component according to one embodiment of the present invention;
FIG. 2 is a bottom perspective view showing the coil component according to the embodiment;
A coil component and method and apparatus for manufacturing the same according to one embodiment of the present invention will be described with reference to FIGS. 1 through 8. First the coil component itself will be described. A coil component 1 is specifically a coil component for a power supply system. As shown in FIG. 4, the coil component 1 is primarily configured of a core 2, a single winding 6, terminal electrodes 7, and a resin part 20. The portion of the coil component 1 excluding the resin part 20 corresponds to a coil part.
The core 2 has a base magnetic material such as ferrite and includes a substantially cylindrical winding portion 3 (see FIG. 7), and a first flange 5 and a second flange 4 disposed one on either end of the winding portion 3. Since the first and second flanges 5 and 4 are shaped symmetrically to each other, only the first flange 5 will be described below.
The first flange 5 is substantially plate-shaped with a prescribed thickness. The first flange 5 has a bottom surface 5A that is substantially octagonal in shape, all sides being equivalent in length. As shown in FIG. 3, the bottom surface 5A includes a first side 51, a second side 52, a first omitted side 53, a second omitted side 54, a third side 55, a fourth side 56, a third omitted side 57, and a fourth omitted side 58.