US 12,626,858 B2Granted

Magnetically coupled reactor and boosting circuit

AssigneeKomatsu Ltd.

InventorsInami Asai, Makoto Chiba, Yohei Inoue, Takeshi Yoshida

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Abstract

A reactor core of the magnetically coupled reactor includes a first outer core portion including two first leg portions extending in a first direction and a first base portion linking the two first leg portions, a second outer core portion including two second leg portions extending in the first direction and a second base portion linking the two second leg portions, and an intermediate core portion integrally extending continuously in the first direction and connecting the first leg portions and the second leg portions, in which a first connection portion, to which the first leg portions and the intermediate core portion are connected, is positioned in which a first coil portion is wound in the first direction, and a second connection portion, to which the second leg portions and the intermediate core portion are connected, is positioned in which the second coil portion is wound in the first direction.

Claims7

Dependent claims

A magnetically coupled reactor comprising:

a reactor core forming a closed magnetic circuit;
a first coil portion wound around the reactor core in a split manner;
and
a second coil portion wound in a split manner at a position apart from the first coil portion in a first direction in the reactor core,
wherein the reactor core includes
a first outer core portion including two first leg portions extending in the first direction and a first base portion linking the two first leg portions on a first side in the first direction,
a second outer core portion including two second leg portions extending in the first direction and a second base portion linking the two second leg portions on a second side in the first direction, and
first and second intermediate core portions arranged side by side in a second direction intersecting the first direction and integrally extending continuously in the first direction to connect the first leg portions and the second leg portions,
the first coil portion and the second coil portion are wound in a split manner to span at least across the two intermediate core portions arranged side by side in the second direction,
a first connection portion defined between the first leg portions and the first intermediate core portion and positioned such that the first coil portion is wound in the first direction around at least the first connection portion, and
a second connection portion defined between the second leg portions and the second intermediate core portion and positioned such that the second coil portion is wound in the first direction around at least the second connection portion.

8 more elements

A magnetically coupled reactor comprising:

a reactor core forming a closed magnetic circuit;
a first coil portion wound around the reactor core in a split manner;
and
a second coil portion wound in a split manner at a position apart from the first coil portion in a first direction in the reactor core,
wherein the reactor core includes
a first outer core portion including two first leg portions, each of the two first leg portions including a first leg portion main body and a first split leg portion, extending in the first direction and a first base portion linking the two first leg portions on a first side in the first direction,
a second outer core portion including two second leg portions, each of the two second leg portions including a second leg portion main body and a second split leg portion, extending in the first direction and a second base portion linking the two second leg portions on a second side in the first direction, and
first and second intermediate core portions arranged side by side in a second direction intersecting the first direction and integrally extending continuously in the first direction to connect the first leg portions and the second leg portions,
the first coil portion and the second coil portion are wound in a split manner to span at least across the two intermediate core portions arranged side by side in the second direction,
a first connection portion defined between the first split leg portion and the first intermediate core portion and positioned such that the first coil portion is wound in the first direction around at least the first connection portion, and
a third connection portion defined between the first leg portion main body and the first split leg portion and positioned such that the first coil portion is wound in the first direction around at least the third connection portion;
a first separator configured to increase magnetic resistance and provided in the first connection portion, and
a second separator configured to increase magnetic resistance and provided in the third connection portion.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/574,097Filed 7 Jul 2022
Priority: JP 2021-1143979 Jul 2021
Published: US 2024/0321512 A126 Sep 2024
Granted: 12 May 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

H01F 27/346
Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations,…:…
H02M 3/1586
With a plurality of power processing stages connected in parallel: switched with a phase shift, i.e. interleaved
H01F 3/14
Composite arrangements of magnetic circuits: constrictions; Gaps, e.g. air-gaps
H01F 27/24
Details of transformers or inductances, in general: magnetic cores