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公开(公告)号：US20200259402A1
公开(公告)日：2020-08-13
申请号：US16786819
申请日：2020-02-10
Applicant: FANUC CORPORATION
Inventor： SeungJun LEE , Hidetoshi UEMATSU , Makoto FUNAKUBO
Abstract: Provided is a manufacturing device for a rotor core and a manufacturing method for a rotor core in which it is possible to suitably fit a columnar core rod into a center hole of a laminated iron core, when fitting and installing the laminated iron core into a fitting recess of a first mold. A device for manufacturing a rotor core includes: a first mold; a second mold that engages with the first mold and clamps and seals the laminated iron core together with the first mold; a resin injection unit that is provided to the second mold and injects a resin material in the magnet insertion hole by using a molding machine; and a guide plate that has a through hole into which the core rod is inserted and is mounted at one end of the laminated iron core in such a manner that the through hole is in communication with the center hole of the laminated iron core, in which the guide plate has an opening diameter of the through hole on one surface side of one end side of the laminated iron core that is substantially the same as an opening diameter of the center hole, and an opening diameter of the through hole on the other side on the side of the first mold is larger than an opening diameter on the one surface side.
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公开(公告)号：US20170090432A1
公开(公告)日：2017-03-30
申请号：US15273704
申请日：2016-09-23
Applicant: FANUC CORPORATION
Inventor： Makoto FUNAKUBO
IPC: G05B13/02
CPC classification number: G05B13/0265 , H02P21/06
Abstract: A machine learning system according to an embodiment of the present invention includes a state observer for observing the winding temperature, winding resistance, current value, and rotor magnetic flux density of a magnetization unit having a magnetizing yoke and windings; a reward calculator for calculating a reward from the rotor magnetic flux density obtained by the state observer; and a learning unit for updating an action value table based on a magnetization rate calculated from the rotor magnetic flux density and a target magnetic flux density, the winding temperature, and the winding resistance.
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公开(公告)号：US20200251969A1
公开(公告)日：2020-08-06
申请号：US16780610
申请日：2020-02-03
Applicant: FANUC CORPORATION
Inventor： SeungJun LEE , Hidetoshi UEMATSU , Makoto FUNAKUBO
Abstract: Provided is a manufacturing device and a manufacturing method for a rotor core that can prevent damage from being caused to an end of a magnet due to movement of the magnet when injecting a resin material. Included are a first mold including a fitting recess that fits and holds a laminated iron core in which a magnet is inserted into a magnet insertion hole, a second mold that is engaged with the first mold and clamps and seals the laminated iron core together with the first mold, a resin injection unit that is provided to the second mold, and injects a resin material into the magnet insertion hole, and a magnet positioning and holding mechanism that positions and holds the magnet in a state of being fit into the fitting recess of the first mold.
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4.发明申请公开(公告)号：US20220216749A1
公开(公告)日：2022-07-07
申请号：US17700302
申请日：2022-03-21
Applicant: FANUC CORPORATION
Inventor： SeungJun LEE , Hidetoshi UEMATSU , Makoto FUNAKUBO
Abstract: Provided is a device for manufacturing a rotor core with less magnetic flux leakage, a method for manufacturing the rotor core, and a rotor structure. Included are a first mold including a fitting recess that fits and holds a laminated iron core in which a magnet is inserted into a magnet insertion hole; a second mold that clamps and seals the laminated iron core together with the first mold; a resin injection unit that is provided to the second mold and injects a resin material in the magnet insertion hole by using a molding machine; and a protrusion that is inserted into the magnet insertion hole by a predetermined insertion amount, and positions and holds the magnet by an end of the magnet being brought into contact with the protrusion, in a state of the first mold and the second mold being clamped.
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Patent Agency Ranking
5.发明申请公开(公告)号：US20220216748A1
公开(公告)日：2022-07-07
申请号：US17700180
申请日：2022-03-21
Applicant: FANUC CORPORATION
Inventor： SeungJun LEE , Hidetoshi UEMATSU , Makoto FUNAKUBO
Abstract: Provided is a device for manufacturing a rotor core with less magnetic flux leakage, a method for manufacturing the rotor core, and a rotor structure. Included are a first mold including a fitting recess that fits and holds a laminated iron core in which a magnet is inserted into a magnet insertion hole; a second mold that clamps and seals the laminated iron core together with the first mold; a resin injection unit that is provided to the second mold and injects a resin material in the magnet insertion hole by using a molding machine; and a protrusion that is inserted into the magnet insertion hole by a predetermined insertion amount, and positions and holds the magnet by an end of the magnet being brought into contact with the protrusion, in a state of the first mold and the second mold being clamped.
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公开(公告)号：US20180052070A1
公开(公告)日：2018-02-22
申请号：US15677186
申请日：2017-08-15
Applicant: FANUC CORPORATION
Inventor： Makoto FUNAKUBO , Yasuo KAWAI
CPC classification number: G01M3/26 , G01M3/025 , G01M3/3272 , H02K5/12 , H02K11/20
Abstract: To provide an electric motor capable of reducing the number of work processes for airtight testing, by having a pressure sensor capable of detecting the pressure of an internal space. A motor having an internal space sealed relative to an external space includes: a main body part having a first space constituting the internal space, a stator part that is arranged to be housed in the first space and has a winding, and a rotor part that is entirely or partially arranged to be housed in the first space and has an output shaft; a detection part having a second space that constitutes the internal space and is in communication with the first space; a pressure sensor arranged at the internal space and capable of detecting the pressure of the internal space; and an output part that outputs information of the pressure detected by the pressure sensor out of the motor.
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7.发明申请公开(公告)号：US20220216750A1
公开(公告)日：2022-07-07
申请号：US17700358
申请日：2022-03-21
Applicant: FANUC CORPORATION
Inventor： SeungJun LEE , Hidetoshi UEMATSU , Makoto FUNAKUBO
Abstract: Provided is a device for manufacturing a rotor core with less magnetic flux leakage, a method for manufacturing the rotor core, and a rotor structure. Included are a first mold including a fitting recess that fits and holds a laminated iron core in which a magnet is inserted into a magnet insertion hole; a second mold that clamps and seals the laminated iron core together with the first mold; a resin injection unit that is provided to the second mold and injects a resin material in the magnet insertion hole by using a molding machine; and a protrusion that is inserted into the magnet insertion hole by a predetermined insertion amount, and positions and holds the magnet by an end of the magnet being brought into contact with the protrusion, in a state of the first mold and the second mold being clamped.
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8.发明申请公开(公告)号：US20200251943A1
公开(公告)日：2020-08-06
申请号：US16780493
申请日：2020-02-03
Applicant: FANUC CORPORATION
Inventor： SeungJun LEE , Hidetoshi UEMATSU , Makoto FUNAKUBO
Abstract: Provided is a device for manufacturing a rotor core with less magnetic flux leakage, a method for manufacturing the rotor core, and a rotor structure. Included are a first mold including a fitting recess that fits and holds a laminated iron core in which a magnet is inserted into a magnet insertion hole; a second mold that clamps and seals the laminated iron core together with the first mold; a resin injection unit that is provided to the second mold and injects a resin material in the magnet insertion hole by using a molding machine; and a protrusion that is inserted into the magnet insertion hole by a predetermined insertion amount, and positions and holds the magnet by an end of the magnet being brought into contact with the protrusion, in a state of the first mold and the second mold being clamped.
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公开(公告)号：US20140097716A1
公开(公告)日：2014-04-10
申请号：US14045936
申请日：2013-10-04
Applicant: FANUC CORPORATION
Inventor： Tomonaga YAMAMOTO , Makoto FUNAKUBO
IPC: H02K5/22
CPC classification number: H02K5/22 , F16J15/3272 , F16J15/54 , H02K5/04 , H02K5/10 , H02K5/124 , H02K5/15
Abstract: Through a housing of an electric motor, an output shaft attached to a rotor penetrates. In this housing, an air tightness test hole of the electric motor which communicates with internal space of the electric space formed with the housing and a stator is formed. Further, an oil seal which blocks aeration between the internal space and an outside of the electric motor is attached to this housing.
Abstract translation: 通过电动机的壳体，连接到转子的输出轴穿透。 在该壳体中，形成与形成有壳体的电气空间的内部空间和定子连通的电动机的气密性试验孔。 此外，在该壳体上安装有封闭内部空间与电动机外部的通气的油封。
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