US Patent No. 10,734,153

THREE-PHASE REACTOR COMPRISING IRON-CORE UNITS AND COILS


Patent No. 10,734,153
Issue Date August 04, 2020
Title Three-phase Reactor Comprising Iron-core Units And Coils
Inventorship Takuya Maeda, Yamanashi (JP)
Masatomo Shirouzu, Yamanashi (JP)
Assignee FANUC CORPORATION, Yamanashi (JP)

Claim of US Patent No. 10,734,153

1. A three-phase reactor, comprising:a non-rotatable central iron core, wherein the central iron core, without having any opening, is solid;
an outer peripheral iron core surrounding the central iron core; and
at least three connecting units that magnetically connect the central iron core and the outer peripheral iron core to each other,wherein the at least three connecting units are spaced from each other circumferentially at regular intervals,wherein each of the at least three connecting units comprise a first iron core extending radially from the central iron core and second iron core extending radially from an inner peripheral surface of the outer peripheral iron core,wherein the first and second iron core line up with each other in a radial direction but do not touch one another so that a gap exists between the first and second iron core to enable magnetic connection between the first iron core and the second iron core,wherein each of the connecting units comprises at least one coil wound around the first iron core and at least one coil wound around the second iron core, andwherein the at least one coil wound around the first iron core and the at least one coil wound around the second iron core are configured to connect either in series or in parallel and adjust the inductance of the reactor.