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公开(公告)号：US10406663B2
公开(公告)日：2019-09-10
申请号：US15371625
申请日：2016-12-07
Applicant: FANUC CORPORATION
Inventor： Genzo Naito , Kazuhiro Yamamoto , Minoru Kataoka
Abstract: A detachment tool of the present invention is a tool for detaching a device attached to a wall portion. The detachment tool includes a member in which a first through hole and a second through hole are formed, a first screw that fixes the member to the device while inserted into the first through hole, and a second screw that pushes the wall portion while inserted into the second through hole. The first through hole is a threaded hole that screw-engages with the first screw or an unthreaded hole. The second through hole is a threaded hole that screw-engages with the second screw. According to such a configuration, the detachment tool in which operationality in detachment is good, flexible adaptation to a space can be made, and force applied in detachment is also easily managed, and a motor drive device provided with the same can be provided.
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公开(公告)号：US10117354B2
公开(公告)日：2018-10-30
申请号：US14711848
申请日：2015-05-14
Applicant: FANUC CORPORATION
Inventor： Kazuhiro Yamamoto
Abstract: A motor drive unit which improves the cooling ability. The motor drive unit comprises electronic components and a housing which surrounds the electronic components. The housing has a back plate to which the electronic components are fixed, a front plate which faces the back plate, and a first side plate and second side plate which face each other and extend from the back plate to the front plate. The first side plate has openings which pass through the first side plate and slants with respect to the back plate so as to approach the second side plate or separate from the second side plate the further from the back plate toward the front plate.
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13.发明申请MOTOR DRIVE DEVICE AND METHOD CAPABLE OF NOTIFYING MALFUNCTION IN FLUID FLOW IN HEAT SINK 审中-公开电动机驱动装置及方法，可以通知散热器流体中的功能异常公开(公告)号：US20160351041A1
公开(公告)日：2016-12-01
申请号：US15153806
申请日：2016-05-13
Applicant: FANUC CORPORATION
Inventor： Kenichi Okuaki , Kazuhiro Yamamoto
IPC: G08B21/18
CPC classification number: H01L23/34 , G01K3/04 , G08B21/182 , H01L23/467 , H05K7/20 , H05K2201/066
Abstract: A motor drive device detects the malfunction of a flow path in a heat sink based on the temperature of the device. The motor drive device includes: a temperature detection part which detects the temperature of the motor drive device; a temperature change calculating part which calculates the degree of change of the temperature with respect to time when the rotation number of a fan is controlled to a lower rotation number than a regular rotation number; an malfunction determination part which determines whether or not the degree of the change is different from a predetermined standard; and an malfunction signal generation part which generates a signal indicating that malfunction occurs in fluid flow when it is determined that the degree of the change is different from the standard.
Abstract translation: 马达驱动装置根据装置的温度来检测散热片中的流路的故障。 电机驱动装置包括：温度检测部，其检测电动机驱动装置的温度; 温度变化计算部，其计算当将风扇的转数控制在比常规转数更低的转数时的温度相对于时间的变化程度; 确定改变程度是否不同于预定标准的故障确定部分; 以及故障信号生成部，其在确定变化的程度与标准不同时，生成表示在流体流动中发生故障的信号。
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14.发明申请公开(公告)号：US20140199191A1
公开(公告)日：2014-07-17
申请号：US14155635
申请日：2014-01-15
Applicant: FANUC CORPORATION
Inventor： Kazuhiro Yamamoto , Makoto Takeshita
CPC classification number: F04D25/0646 , F04D29/5813
Abstract: A fan motor including a stator; a rotor having a cylindrical part arranged around the stator and a plurality of blades sticking out from an outer periphery of the cylindrical part to a radial direction, the rotor rotating about an axial line to blow a gas; and a housing having a disk part arranged at a side of the stator, a shroud part arranged around the blades, and a plurality of stays extending from an outer circumferential edge portion of the disk part to the radial direction to connect the disk part and the shroud part beside the blades. The stays are arranged at an upstream side from the blades in a blowing direction of the gas.
Abstract translation: 一种包括定子的风扇马达; 具有围绕定子布置的圆筒部的转子和从圆筒部的外周向径向突出的多个叶片，转子围绕轴线旋转以吹送气体; 以及壳体，其具有布置在定子一侧的盘部分，围绕刀片布置的护罩部分和从盘部分的外周边缘部分延伸到径向方向的多个支柱以将盘部分和 护翼部分在刀片旁边。 支柱沿气体的吹送方向设置在叶片的上游侧。
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公开(公告)号：USD1021799S1
公开(公告)日：2024-04-09
申请号：US29836217
申请日：2022-04-25
Applicant: FANUC CORPORATION
Designer： Kazuhiro Yamamoto
Abstract: FIG. 1 is a front-right side-top perspective view of a servo amplifier showing my new design;
FIG. 2 is a front-left side-top perspective view thereof,
FIG. 3 is a front-right side-bottom perspective view thereof;
FIG. 4 is a front-left side-bottom perspective view thereof;
FIG. 5 is a front view thereof;
FIG. 6 is a rear view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is a right side view thereof; and,
FIG. 10 is a left side view thereof.
The broken line showing of the remainder of the servo amplifier represents portions which form no part of the claimed design.-
Patent Agency Ranking
公开(公告)号：US11432430B2
公开(公告)日：2022-08-30
申请号：US16598929
申请日：2019-10-10
Applicant: FANUC CORPORATION
Inventor： Ryuutarou Mitsuzawa , Kazuhiro Yamamoto , Kenichi Okuaki
IPC: H05K7/20
Abstract: The heat dissipation device comprises a fluid direction changing part that changes a fluid traveling direction in which a fluid travels. The fluid direction changing part has a base end and a tip. The base end is fixed to a second surface facing a first surface inside a tubular body. The tip is arranged to face multiple fin ends of multiple fins of a heat sink. The fluid direction changing part is entirely or partially arranged downstream of the fluid traveling direction from an upstream end surface of the heat sink. The fluid flows into the heat sink through the upstream end surface, and also passes through a flow path without fin other than a flow path between fins for passage of a fluid formed between the multiple fins to flow into the heat sink through parts of the multiple fin ends exposed at upstream positions from the tip of the fluid direction changing part.
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公开(公告)号：US10759012B2
公开(公告)日：2020-09-01
申请号：US16393134
申请日：2019-04-24
Applicant: FANUC CORPORATION
Inventor： Genzo Naito , Yoshinori Hoshino , Kazuhiro Yamamoto
Abstract: A motor controller comprises: a motor driver arranged at a housing attached to a machine support; fan motors and arranged in or outside the housing; and a control unit. The motor driver drives motors. The fan motors blow cooling air for cooling the interior of the housing. The CPU includes a machining mode selection unit allowing selection of at least either a first machining mode of machining a machining target finely or a second machining mode of machining the machining target more roughly than in the first machining mode. If the first machining mode is selected, the machining mode selection unit exerts control to change the rotation numbers of the fan motors and so as to reduce vibration to be transmitted from the housing to the support column.
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公开(公告)号：US20190128051A1
公开(公告)日：2019-05-02
申请号：US16174708
申请日：2018-10-30
Applicant: FANUC CORPORATION
Inventor： Kazuhiro Yamamoto , Makoto Takeshita
Abstract: A motor driving device capable of being more easily installed at a mounting member. The motor driving device includes a mounting member including a mounting hole; a fan unit configured to be fixed to the mounting member, the fan unit including a lid disposed to cover the mounting hole; a restricting member configured to restrict movement of the lid in an away direction from the mounting member by sandwiching the lid between the restricting member and the mounting member; and a guide mechanism configured to guide an operation of the restricting member moving along the lid from a non-restricting position where movement of the lid in the away direction is allowed to a restricting position where movement of the lid in the away direction is restricted.
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公开(公告)号：US10151327B2
公开(公告)日：2018-12-11
申请号：US15603811
申请日：2017-05-24
Applicant: FANUC CORPORATION
Inventor： Kazuhiro Yamamoto , Makoto Takeshita
Abstract: A motor drive device that closes a mounting hole for mounting a fan unit by way of a fan fixing member is provided with a structure that can effectively improve operability for maintenance. A bar serving as a regulating member of a motor drive device has a first projecting piece that is formed so as to curve downwards after extending in the horizontal direction from a top part thereof, and a second projecting piece that projects downwards from a bottom part thereof, and by the first projecting piece being placed in an upper insertion part and the second projecting piece being placed in a lower insertion part, a fan unit is fixed in a mounting hole of a flange.
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公开(公告)号：US10116251B2
公开(公告)日：2018-10-30
申请号：US15723404
申请日：2017-10-03
Applicant: FANUC CORPORATION
Inventor： Kenichi Okuaki , Kazuhiro Yamamoto
Abstract: A motor drive device, which supplies electric power from a power element to a motor, and dissipates heat of the power element by way of a heat sink, includes a temperature detector that detects the actual temperature of the heat sink and an electric current detector that detects electric current from the power element to the motor. An actual temperature variation calculation unit calculates an actual temperature variation of the heat sink relative to time from the actual temperature, and an estimated temperature variation calculation unit calculates an estimated temperature variation of the heat sink relative to time from the estimated temperature. A temperature abnormality determination unit determines a temperature abnormality of the heat sink according to whether or not the actual temperature variation is departing from a permitted range based on the estimated temperature variation.
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