Tdk Corporation

Masaaki Iwakura

Katsumi Kobayashi

Nobuo Kitajima

Satoshi Shinbo

Masaru Kumagai

Hiroshi Maeda

Mitsuhiro Seki

Katsuhiro Ishigaki

Kazunori Ishibashi

Toshiyuki Horikawa

Kosuke Kunitsuka

Kenichi Yamaguchi

Satoshi Sinbo

Toru Kuramochi

Shoichi Sasaki

A coil device includes a bobbin, a terminal, and a terminal block. The bobbin includes a winding portion for winding a wire around an outer circumference of the winding portion. The terminal is connectable with an end of the wire. The terminal block holds the terminal. The terminal is movable both in a first axis and a second axis of the bobbin.

Coil device

A transformercomprises a bobbin. A cylinder portionof the bobbinis provided with a first winding partwhere a first wireis wound and a second winding partwhere a second wireis wound at a position different from the first winding partin an axial direction. At an outer circumference of the cylinder portionlocated between the first winding partand the second winding part, an insulating partition collaris formed. On the first winding part, a winding partition collar, separating in respective sections S, S, is formed. On the winding partition collar, at least one communication groovea, communicating the sections S, Sadjacent to each other is formed. The first wireis &#x3b1;-wound around the first winding part

Transformer and leakage transformer

A coil device includes a bobbin, a first winding part, and a second winding part. A partition portion is formed on an outer peripheral surface of the bobbin. The first winding part is wound around the outer peripheral surface at one side of the partition portion. The second winding part is wound around the outer peripheral surface at the other side of the partition portion and has an inner winding layer and an outer winding layer located farther to the outer peripheral surface at the other side than the inner winding layer.

Coil device and method for manufacturing the same

A transformercomprises a bobbin. A cylinder portionof the bobbinis provided with a first winding partwhere a first wireis wound and a second winding partwhere a second wireis wound at a position different from the first winding partin an axial direction. At an outer circumference of the cylinder portionlocated between the first winding partand the second winding part, an insulating partition collaris formed. On the first winding part, a winding partition collar, separating in respective sections S, S, is formed. On the winding partition collar, at least one communication groove, communicating the sections S, Sadjacent to each other is formed. The first wireis &#x3b1;-wound around the first winding part

Transformer

A coil devicecomprises a first bobbinprovided with a first winding partat an outer circumference and a second bobbinprovided with a second winding partat an outer circumference. A plurality of partition walls, separating portions of the wirewhich are adjacent to each other along the scroll axis Z of the first wireare formed on the first winding partalong the scroll axis at predetermined intervals. A section width wof each section, which is along the scroll axis Z, separated by the partition wallsis determined so that only one wirecan pass through. A height of the partition wallsis determined so that one or more of the wirescan pass through. At least one connecting groove, connecting each section which are adjacent to each other, is formed on each partition wall

Coil component

Core for electronic component

A ferrite core includes an end face portion, a pair of outer legs protruding from the end face portion, and a center leg protruding from the end face portion between the pair of outer legs. A width Wclose to one end portion of the center leg in a Y-axis direction perpendicular to a facing direction of the outer legs is smaller than a width Wclose to the other end portion. According to this configuration, a circuit component may be positioned close to the end portion. A transformer includes the ferrite core.

Ferrite core and transformer using the same

Bobbin for transformer

Toroidal core cover

A planar coil component includes terminal metal fittings that include a crimping part, a terminal part, and a junction, and a bobbin on which a winding is wound. The bobbin has a terminal board including insertion holes. The terminal part is inserted from an upper surface of the terminal board into the insertion holes with the junction exposed, so that the terminal part projects from a bottom surface of the terminal board, each end of the winding is inserted into the crimping part through a slot in the bottom surface of the terminal board, and crimped. The winding is one of a litz wire, a stranded wire, and a parallel wire, and welded at an end tip and connected to the terminal metal fitting.

Growing community of inventors

Tokyo, Japan

Masaaki Iwakura