# US 2018/0025830 A1 · Three-phase ac reactor having external connection position change unit and manufacturing method thereof

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- Number: US 2018/0025830 A1
- Document ID: US20180025830A1
- Status: Published application
- Kind: A1
- Application number: 15/650,333
- Filed: 2017-07-14
- Published: 2018-01-25
- Earliest claimed: 2016-07-19
- Assignees: Fanuc Corporation
- Applicants: Fanuc Corporation
- Inventors: KENICHI TSUKADA; Kaname Matsumoto; Makoto Takeshita; Yuuichi Yamada; Masatomo Shirouzu
- Web page: https://patentgrep.com/patent/US20180025830A1

## CPC

- H01F 27/2828: {Construction of conductive connections, of leads}
- H01F 27/22: Cooling by heat conduction through solid or powdered fillings
- H01F 27/245: made from sheets, e.g. grain-oriented (H01F27/26 takes precedence)
- H01F 27/29: Terminals; Tapping arrangements {for signal inductances}
- H01F 27/30: Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F 37/00: Fixed inductances not covered by group H01F17/00
- H01F 41/076: Forming taps or terminals while winding, e.g. by wrapping or soldering the wire onto pins, or by directly forming terminals from the wire
- H01F 41/10: Connecting leads to windings (making electric connections in general H01R43/00)
- H01R 43/20: for assembling or disassembling contact members with insulating base, case or sleeve
- H02M 3/24: by static converters
- Y10T 29/49208: by assembling plural parts
- H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H02M: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

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.

## Claims

### Claim 1

A three-phase AC reactor comprising:
three-phase coils arranged neither in parallel with each other nor in a linear manner;
an input and output terminal block having an input and output unit having a parallel and linear 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.

### Claim 2 (depends on 1)

The three-phase AC reactor according to claim 1, wherein the external connection position change unit is detachable from at least one of the coil end and a connection unit of the input and output terminal block.

### Claim 3 (depends on 1)

A method for manufacturing the three-phase AC reactor according to claim 1, comprising the steps of:
inserting a terminal of a bus bar of the external connection position change unit on the side of each of the three-phase coils onto the coil end to establish connection; and
inserting an input or output terminal of the input and output terminal block onto a terminal of the external connection position change unit on the side of the input and output terminal block to establish connection.