Fanuc Corporation

Kenichi Tsukada

Masatomo Shirouzu

Tomokazu Yoshida

Kaname Matsumoto

Yuuichi Yamada

Makoto Takeshita

Takuya Maeda

Takafumi Kajiya

A core main body includes: an outer peripheral iron core, and at least three iron cores coupled to an inner surface of the outer peripheral iron core, in which a gap is formed between adjacent iron cores among the at least three iron cores, the gap being magnetically connectable, and a plurality of notches are formed on an outer circumferential surface of the outer peripheral iron core, the plurality of notches extending in an axial direction of the outer peripheral iron core. The reactor includes such a core body.

Core main body including outer peripheral iron core, reactor including such core main body and manufacturing method thereof

A reactor includes: an outer peripheral iron core; three leg iron cores; and three coils, each of the coils having an input side coil end and an output side coil end projecting from a same end surface on an end side in the axial direction of the three leg iron cores, where the three coils include two first coils in which a projecting position of the input side coil end and a projecting position of the output side coil end has a first relative positional relationship and include one second coil having a second relative positional relationship opposite to the first relative positional relationship and where winding directions from the input side coil end to the output side coil end of the first and the second coils are reversed to each other.

Reactor having relay member with input/output terminal

A three-phase AC reactor according to an embodiment of the present invention includes three-phase coils that are not arranged in parallel, an input and output terminal block having an input and output unit having a parallel arrangement, and an external connection position change unit disposed between a coil end of each of the three-phase coils and the input and output terminal block to connect the coil end to the input and output terminal block.

Method for manufacturing a three-phase AC reactor having external connection position change unit

Provided is a reactor having a core main body that includes an outer peripheral iron core, at least three iron cores, and coils. Between the iron cores adjacent to each other, a gap being magnetically coupled is formed. The reactor includes a fixture that fixes both end portions of the at least three iron cores together by passing through an interior of the outer peripheral iron core in a region between the outer peripheral iron core and the gap. The fixture includes plate-like members disposed on both end faces of the core main body and includes rod-like members that connect the plate-like members to each other by passing through the interior of the outer peripheral iron core. The plate-like members each include a protrusion extending axially inward of the core main body.

Reactor including outer iron-core and method for manufacturing the same

A reactor includes a core body, and the core body includes an outer peripheral iron core, at least three iron cores in contact with an inner surface of the outer peripheral iron core, or positioned to be coupled to the inner surface, and coils wound around the iron cores. A gap through which magnetic coupling is possible is formed between one iron core of the at least three iron cores and another iron core adjacent to the one iron core. The reactor includes an end plate attached to one end face of the core body, and the end plate includes a protruding portion that partially protrudes in a direction away from an outer circumferential surface of the core body.

Reactor provided with end plate

An electromagnetic device includes an outer peripheral iron core, and at least three iron core coils which are in contact with or coupled to the inner surface of the outer peripheral iron core. The at least three iron core coils each include an iron core, and at least one of a primary coil and a secondary coil, which are wound around the iron core. The at least three iron core coils are arranged in a circle, and the iron core of one of the at least three iron core coils is in contact with the iron cores of the other iron core coils adjacent to the one iron core coil.

Electromagnetic device

A core body of a reactor includes an outer peripheral iron core composed of a plurality of outer peripheral iron core portions, at least three iron cores coupled to the plurality of outer peripheral iron core portions, and coils wound onto the at least three iron cores. Gaps, which can be magnetically coupled, are formed between one of the at least three iron cores and another iron core adjacent thereto. The reactor includes cover parts which at least partially cover the iron cores and provide insulation from the coils.

Reactor having iron cores and coils

A reactor includes an outer peripheral iron core composed of a plurality of outer peripheral iron core portions and at least three iron core coils arranged inside the outer peripheral iron core. The at least three iron core coils are composed of iron cores coupled to the plurality of outer peripheral iron core portions and coils wound onto the iron cores. Gaps, which can be magnetically coupled, are formed between adjacent iron cores. The reactor further includes connection parts for connecting the plurality of outer peripheral iron core portions to each other.

Reactor and method for production of core body

A three-phase reactor includes an outer peripheral iron core for surrounding the outer periphery of the three-phase reactor, and at least three iron core coils, which are in contact with or coupled to the inner surface of the outer peripheral iron core. The at least three iron core coils includes iron cores and coils wound around the iron cores. Gaps, which can be magnetically coupled, are each formed between two adjacent ones of the iron cores. The three-phase reactor further includes a vibration suppressing structure part disposed in the vicinity of the gaps so as to reduce vibrations occurring at the gaps.

Three-phase reactor including vibration suppressing structure part

A transformer includes an outer peripheral iron core, and at least three iron core coils, which are in contact with or coupled to the inner surface of the outer peripheral iron core. The at least three iron core coils each include an iron core, and at least one of a primary coil and a secondary coil, which are wound around the iron core. Gaps, which can be magnetically coupled, are formed between two adjacent ones of the at least three iron cores, or between the at least three iron cores and a central iron core positioned at the center of the outer peripheral iron core.

Transformer including gaps

A reactor according to an embodiment of the present disclosure includes a core body. The core body includes a peripheral iron core composed of a plurality of peripheral iron core portions, at least three iron cores coupled to the peripheral iron core portions, and coils wound on the iron cores. Gaps are formed between one of the iron cores and another iron core adjacent thereto, so as to be magnetically connectable through the gaps. The reactor further includes a plurality of covering portions each for covering each of the coils. The covering portions adjacent in a circumferential direction can be fitted to each other.

Reactor having covering portions having fitting parts fitted to each other

A reactor according to an embodiment of the present disclosure includes a reactor main body including cores and coils wound on the cores; and a base having a polygonal shape extending outside the reactor main body, configured to support the reactor main body. In at least two sides that are not opposite each other, of a plurality of sides of the base, a plurality of notches are formed inwardly from each of the sides, so that axes of fasteners to temporarily secure the base to an installation target object pass through the notches.

Reactor having base having securing notches

A reactor according to an embodiment of the present disclosure includes a core body that includes an outer peripheral iron core composed of a plurality of outer peripheral iron core portions, at least three iron cores coupled to the outer peripheral iron core portions, and coils wound on the iron cores. A gap is formed between one of the iron cores and another of the iron cores adjacent to the one of the iron cores, so as to be magnetically connectable through the gap. The reactor includes a terminal base unit for electrically connecting the coils to an external device, and a temperature sensor attached to a surface of the terminal base unit, the surface being opposite the coils.

Reactor having temperature sensor attached to terminal base unit

A reactor includes an outer peripheral iron core, and at least three core coils contacting or connected to an inner surface of the outer peripheral iron core. Each of the core coils includes a core and a coil wound onto the core. The reactor includes an attachment unit disposed on one end surface of the outer peripheral iron core, to attach the outer peripheral iron core in a predetermined position. At least one ventilation port is formed in an extension portion of the attachment unit.

Reactor

A reactor includes an outer peripheral iron core and at least three iron-core coils that contact or are connected to an inner surface of the outer peripheral iron core. Each of the iron-core coils includes iron cores and coils wound onto the iron cores. The reactor further includes an external cooling unit disposed outside the outer peripheral iron core, to cool the outer peripheral iron core.

Growing community of inventors

Yamanashi, Japan

Kenichi Tsukada