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公开(公告)号：US11811285B2
公开(公告)日：2023-11-07
申请号：US17274516
申请日：2019-08-16
Applicant: KOMATSU LTD.
Inventor： Atsuyoshi Koshiba , Takaaki Kimura , Kousuke Mikami , Teiichirou Chiba
IPC: H02K3/28
CPC classification number: H02K3/28
Abstract: A stator includes a stator core and a coil wound around the stator core. The coil includes a basic coil segment including a pair of first legs and a first transition portion disposed on a first end surface side of the stator core, and a transition coil segment including a pair of second legs and a second transition portion. The second transition portion includes a pair of shoulders and a pair of second rising portions. An inclination angle of the second rising portion is larger than an angle of the shoulder with respect to a first end surface, so that the second transition portion is in contact with the first transition portion.
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公开(公告)号：US20220255386A1
公开(公告)日：2022-08-11
申请号：US17626875
申请日：2020-08-24
Applicant: Komatsu Ltd.
Inventor： Hiroki Hijikata , Natsuki Watanabe , Teiichirou Chiba
IPC: H02K3/28
Abstract: A coil includes a center portion arranged in a slot of a stator core, and an end portion protruding in an axial direction from the stator core. The end portion has a first portion, and a second portion thinner than the thickness of the first portion.
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公开(公告)号：US20220037945A1
公开(公告)日：2022-02-03
申请号：US17275754
申请日：2019-10-23
Applicant: Komatsu Ltd.
Inventor： Atsuyoshi Koshiba , Hiroki Hijikata , Takuya Fujikawa , Teiichirou Chiba
Abstract: The basic coil segment is arranged in the slot such that at least part of the basic coil bent portion is arranged outside the insertion end, in an axial direction parallel to a center axis of the stator core and the pair of the basic coil insertion end portions is arranged outside the welded end, in the axial direction. The power coil segment is arranged in the slot such that the power coil lead end portion and at least part of the power coil connection portion are arranged outside the insertion end, in the axial direction and the power coil insertion end portion is arranged outside the welded end, in the axial direction. The height of an end surface of the basic coil segment from the insertion end is equal to the height of an end surface of the power coil segment from the insertion end.
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Patent Agency Ranking
公开(公告)号：US20210194313A1
公开(公告)日：2021-06-24
申请号：US16757822
申请日：2018-10-24
Applicant: Komatsu Ltd.
Inventor： Takuya Kanada , Takaaki Kimura , Ryuichi Kuramae , Teiichirou Chiba , Atsuyoshi Koshiba , Akira Minamiura
Abstract: An electric motor includes a rotor, a stator, and an electric motor casing. The electric motor casing forms a first accommodating space accommodating a rotary shaft and a rotor core and a stator, and has an inner peripheral surface including an abutting inner peripheral surface in contact with a top portion on the radially outer side of a core convex portion. An outer peripheral-side flow path through which a cooling medium is capable of flowing is formed between the core convex portions adjacent to each other in the peripheral direction. The outer peripheral-side flow path is defined by an outer peripheral surface of the core main body and the inner peripheral surface of the electric motor casing.
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公开(公告)号：US20210189686A1
公开(公告)日：2021-06-24
申请号：US16757464
申请日：2019-01-17
Applicant: Komatsu Ltd.
Inventor： Akira Minamiura , Teiichirou Chiba
Abstract: An electric motor includes a rotor having a rotary shaft rotating around a vertically extending axis and a rotor core fixed to an outer peripheral surface of the rotary shaft, a stator surrounding the rotor core from an outer peripheral side, a lower bottom portion as a partition wall partitioning a first space where the rotor and the stator are disposed and a lubricating oil is supplied from an outside, a storage portion configured to store the lubricating oil supplied into the first space, a brake mechanism as a drive unit discharging the lubricating oil inside the storage portion into the first space, and sliding portions into each of which the lubricating oil discharged from the inside of the storage portion is introduced.
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公开(公告)号：US09583990B2
公开(公告)日：2017-02-28
申请号：US14368327
申请日：2012-11-14
Applicant: Komatsu Ltd.
Inventor： Hiroyuki Tokunaga , Ryo Ono , Akira Okabe , Natsuki Watanabe , Teiichirou Chiba
CPC classification number: H02K5/225 , H02K3/38 , H02K5/10 , H02K2213/03
Abstract: An electrical motor that includes a circular stator attached to an inner side of a housing and a rotor disposed at an inner side of the stator in a radial direction, the electrical motor includes: a terminal connected to a power supply cable drawn from a coil of the stator; a terminal box that is attached to the housing and stores the terminal; and an insulating material that is disposed between the terminal box and the terminal and separable from the terminal.
Abstract translation: 一种电动机，其包括附接到壳体的内侧的圆形定子和沿径向设置在所述定子的内侧的转子，所述电动机包括：端子，连接到从线圈的线圈 定子; 连接到壳体并存储终端的接线盒; 以及绝缘材料，其设置在所述端子盒和所述端子之间并且可与所述端子分离。
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公开(公告)号：US09252523B2
公开(公告)日：2016-02-02
申请号：US14369786
申请日：2012-11-14
Applicant: Komatsu Ltd.
Inventor： Hiroyuki Tokunaga , Akira Okabe , Teiichirou Chiba
CPC classification number: H01R13/516 , B60L3/0061 , B60L3/04 , B60L2200/40 , B60L2270/40 , H02K5/10 , H02K5/225 , H02K11/20 , H02K11/225 , H02K11/25 , H02K11/35 , H02K15/0006 , Y02T10/641
Abstract: An interlock mechanism of a motor, includes a terminal box configured to store a terminal used to connect a power supply cable to the motor; a lid configured to close the terminal box; a fixing member configured to fix the lid to the terminal box; a first connector attached to the lid; a second connector capable of being coupled with the first connector and configured to cover the fixing member in a state that the second connector is coupled with the first connector.
Abstract translation: 电动机的互锁机构包括：端子盒，被配置为存储用于将电源电缆连接到电动机的端子; 盖子，用于关闭所述接线盒; 固定构件，其构造成将所述盖固定到所述接线盒; 连接到盖的第一连接器; 第二连接器，其能够与所述第一连接器耦合并且被配置为在所述第二连接器与所述第一连接器耦合的状态下覆盖所述固定构件。
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公开(公告)号：US20140339937A1
公开(公告)日：2014-11-20
申请号：US14368327
申请日：2012-11-14
Applicant: Komatsu Ltd.
Inventor： Hiroyuki Tokunaga , Ryo Ono , Akira Okabe , Natsuki Watanabe , Teiichirou Chiba
CPC classification number: H02K5/225 , H02K3/38 , H02K5/10 , H02K2213/03
Abstract: An electrical motor that includes a circular stator attached to an inner side of a housing and a rotor disposed at an inner side of the stator in a radial direction, the electrical motor includes: a terminal connected to a power supply cable drawn from a coil of the stator; a terminal box that is attached to the housing and stores the terminal; and an insulating material that is disposed between the terminal box and the terminal and separable from the terminal.
Abstract translation: 一种电动机，其包括附接到壳体的内侧的圆形定子和沿径向设置在所述定子的内侧的转子，所述电动机包括：端子，连接到从线圈的线圈 定子; 连接到壳体并存储终端的接线盒; 以及绝缘材料，其设置在所述端子盒和所述端子之间并且可与所述端子分离。
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