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公开(公告)号：US20180110384A1
公开(公告)日：2018-04-26
申请号：US15786628
申请日：2017-10-18
Applicant: Nidec Corporation
Inventor： Yuuichi SAKUMA , Jun MURAKAMI
CPC classification number: A47L5/24 , A47L9/0081 , A47L9/22 , A47L9/2884
Abstract: This motor module includes a motor, a fan, and a casing arranged to house the motor and the fan therein. The casing includes a tubular body portion arranged to extend in an axial direction, an air inlet, an air outlet, a flow passage, and a partitioning portion. The flow passage is a space arranged to join the air inlet and the air outlet to each other between the body portion and the motor. The partitioning portion is arranged in the flow passage to partition the flow passage. The flow passage includes a fan accommodating portion, a first silencing chamber arranged to be in communication with the fan accommodating portion through a first communicating passage, and a second silencing chamber arranged to be in communication with the first silencing chamber through a second communicating passage. The second silencing chamber is arranged to be in communication with the air outlet. The first silencing chamber is arranged to have a flow passage cross-sectional area greater than that of the first communicating passage. The second silencing chamber is arranged to have a flow passage cross-sectional area greater than that of the second communicating passage. Two expansion-type silencers, one defined by the first communicating passage and the first silencing chamber and the other defined by the second communicating passage and the second silencing chamber, are arranged between the fan and the air outlet, so that noise generated in the fan can be reduced with high efficiency.
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公开(公告)号：US20190069741A1
公开(公告)日：2019-03-07
申请号：US16115637
申请日：2018-08-29
Applicant: Nidec Corporation
Inventor： Jun MURAKAMI , Yuuichi SAKUMA
IPC: A47L9/00 , A47L5/22 , A47L9/10 , A47L9/24 , A47L9/22 , F04D29/52 , F04D19/00 , F04D29/66 , F04D29/70 , H02K5/04
Abstract: A motor module includes a motor, a fan, and a casing accommodating the motor and the fan therein. The casing includes a tubular main body portion, an intake port, an exhaust port, a motor disposing unit, a flow passage, and a partition unit. The flow passage includes a fan accommodating unit, a first muffling chamber that communicates with the fan accommodating unit via a first communication path, and a second muffling chamber that communicates with the first muffling chamber via a second communication path. In addition, the partition unit includes an inner partition unit that partitions the motor disposing unit and the first muffling chamber. The first muffling chamber communicates with the motor disposing unit via a cutout portion in the inner partition unit.
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公开(公告)号：US20190069737A1
公开(公告)日：2019-03-07
申请号：US16115635
申请日：2018-08-29
Applicant: Nidec Corporation
Inventor： Yuuichi SAKUMA , Jun MURAKAMI
IPC: A47L5/24 , A47L9/00 , A47L9/32 , A47L9/22 , A47L9/24 , F04D19/00 , F04D29/66 , F04D29/52 , F04D29/70 , H02K5/20 , H02K5/24 , H02K7/14 , H02K9/06 , H02K11/00
Abstract: A motor module includes a motor, a fan, and a casing accommodating the motor and the fan therein. The casing includes a tubular main body portion, an intake port, an exhaust port, a flow passage, and a partition unit. The flow passage includes a fan accommodating unit, a first muffling chamber that communicates with the fan accommodating unit via a first communication path, a second muffling chamber that communicates with the first muffling chamber via a second communication path, and a third muffling chamber that communicates with either one of the first muffling chamber or the second muffling chamber via a third communication path, and communicates with the exhaust port.
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公开(公告)号：US20160213122A1
公开(公告)日：2016-07-28
申请号：US14956631
申请日：2015-12-02
Applicant: Nidec Corporation
Inventor： Yuuichi SAKUMA , Jun MURAKAMI , Takamasa YAMASHITA
IPC: A45D20/12
CPC classification number: A45D20/12
Abstract: A hair dryer includes a fan motor, a heater unit, and a body case arranged to cover the fan motor and the heater unit. The fan motor includes an impeller arranged to rotate about a central axis, and a motor arranged to rotate the impeller. The body case includes an intake case portion including an air inlet, and a discharge case portion including an air outlet. Inside the body case, an inner tubular case portion arranged to extend along an inside surface of the body case is accommodated. A silencing space is defined between the inside surface of the body case and the inner tubular case portion. An opening portion is defined to join the silencing space and an interior space of the body case to each other.
Abstract translation: 吹风机包括风扇马达，加热器单元和布置成覆盖风扇马达和加热器单元的主体壳体。 风扇电动机包括布置成围绕中心轴线旋转的叶轮和布置成使叶轮旋转的马达。 主体壳体包括包括空气入口的进气箱部分和包括空气出口的排出壳体部分。 在主体外壳的内部容纳有沿着主体壳体的内表面延伸的内部管状壳体部分。 在主体壳体的内表面和内管状壳体部分之间限定消音空间。 开口部分被限定为使主体壳体的消音空间和内部空间相互连接。
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公开(公告)号：US20230101010A1
公开(公告)日：2023-03-30
申请号：US17952313
申请日：2022-09-26
Applicant: NIDEC CORPORATION
Inventor： Daisuke OGASAWARA , Jun MURAKAMI , Hiroki AKAISHI , Kazuyuki YAMAMOTO , Yuki ISHIKAWA , Keisuke NAKATA
Abstract: In an electric power unit that includes: a motor accommodating portion and a gear accommodating portion in a housing; and an inverter accommodating portion and an auxiliary machine attachment portion formed on side walls of the housing, the auxiliary machine attachment portion is formed by a protruding portion having at least a first vertical surface and a first horizontal surface formed on one of the side walls forming the motor accommodating portion and the gear accommodating portion of the housing, a first rib extending in a horizontal direction is formed on the first vertical surface facing one axial side of the auxiliary machine attachment portion, and a second rib, which extends in a vertical direction with respect to the first horizontal surface and connects the first horizontal surface and the inverter accommodating portion, is formed on the first horizontal surface, adjacent to the inverter accommodating portion, of the auxiliary machine attachment portion.
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Patent Agency Ranking
公开(公告)号：US20230100892A1
公开(公告)日：2023-03-30
申请号：US17950100
申请日：2022-09-22
Applicant: NIDEC CORPORATION
Inventor： Daisuke OGASAWARA , Yuki ISHIKAWA , Keisuke NAKATA , Jun MURAKAMI , Hiroki AKAISHI , Kazuyuki YAMAMOTO
Abstract: In an electric power unit which accommodates at least an electric motor in a housing, polygonal rib regions in which polygonal ribs are respectively formed are provided on at least two surfaces of an outer peripheral surface of the housing, and the polygonal rib regions are connected by a circumferential rib. Here, a first axial rib and a second axial rib extending parallel to an axial direction are formed on the outer peripheral surface of the housing, and the polygonal rib region is provided in a portion sandwiched between the first axial rib and the second axial rib. Further, the circumferential rib is formed over the entire part of the polygonal rib region in a circumferential direction. Note that the polygonal rib is a honeycomb rib.
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公开(公告)号：US20230344303A1
公开(公告)日：2023-10-26
申请号：US17798556
申请日：2020-09-14
Applicant: NIDEC CORPORATION
Inventor： Daisuke OGASAWARA , Jun MURAKAMI , Hiroki AKAISHI , Kazuyuki YAMAMOTO , Mizuki NIHIRA
Abstract: A motor includes a rotor, a stator, a motor housing, an inverter, and an inverter case. The motor housing and the inverter case are arranged in contact with each other. The inverter case has a side wall surrounding the inverter when viewed from above. The side wall includes an upper side wall located in an upper part of the side wall, a step wall extending from a lower end of the upper side wall, and a lower side wall extending downward from an end edge of the step wall. The side wall has a plurality of outer ribs extending in the up-down direction. The outer rib is connected to the outer surface of the step wall and the outer surface of the upper side wall or the lower side wall located inside the inverter case relative to the step wall.
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公开(公告)号：US20230155448A1
公开(公告)日：2023-05-18
申请号：US17798081
申请日：2020-09-14
Applicant: NIDEC CORPORATION
Inventor： Daisuke OGASAWARA , Jun MURAKAMI , Kazuyuki YAMAMOTO , Mizuki NIHIRA , Keigo NAKAMURA
Abstract: An inverter device capable of suppressing generation of vibration and a puddle in a top wall of an inverter case is provided. The inverter device includes an inverter and the inverter case that accommodates the inverter inside the inverter case. The inverter case has a top wall covering the inverter from above. The top wall has a first inclined surface descending from a top part on the upper surface of the top wall toward a first end part of the top wall, and a plurality of first rod-shaped ribs extending from the top part toward the first end part. The first rod-shaped rib has a site in which a protrusion height from the inclined surface increases toward the first end part.
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公开(公告)号：US20200313506A1
公开(公告)日：2020-10-01
申请号：US16788309
申请日：2020-02-12
Applicant: NIDEC CORPORATION
Inventor： Jun MURAKAMI , Kazuyuki YAMAMOTO , Daisuke OGASAWARA , Yuki ISHIKAWA
Abstract: A motor according to a preferred embodiment of the present disclosure includes a rotor arranged to be capable of rotating about a central axis, a stator located radially outside of the rotor, a housing arranged to house the rotor and the stator, and a plurality of bolts arranged to fasten the stator to the housing. The housing includes a tubular portion arranged radially outside of the stator to surround the stator; a plurality of stator support portions each of which is arranged to project radially inward from an inner circumferential surface of the tubular portion, and includes a seating surface arranged to face a first axial side; and screw holes each of which is arranged to open in the seating surface of a separate one of the stator support portions. The stator includes a plurality of through holes each of which is arranged to extend along an axial direction. The bolts are passed through the through holes of the stator and screwed into the screw holes of the stator support portions. The housing includes a rib arranged to project radially outward from an outer circumferential surface of the tubular portion on the first axial side of the seating surfaces of the stator support portions.
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公开(公告)号：US20190069742A1
公开(公告)日：2019-03-07
申请号：US16115640
申请日：2018-08-29
Applicant: Nidec Corporation
Inventor： Yuuichi SAKUMA , Jun MURAKAMI
IPC: A47L9/00 , A47L5/24 , A47L9/32 , A47L9/22 , A47L9/24 , F04D19/00 , F04D29/66 , F04D29/70 , H02K9/04 , H02K5/20 , H02K5/24
Abstract: A motor module includes a motor, a fan, and a casing accommodating the motor and the fan therein. The casing includes a tubular main body portion, an intake port, an exhaust port, a motor disposing unit, a flow passage, and a partition unit. The flow passage includes a fan accommodating unit. The partition unit includes a first central partition unit that partitions the fan accommodating unit and the motor disposing unit. The first central partition unit includes a cutout portion provided at at least a portion of the first central partition unit. The motor disposing unit communicates with the fan accommodating unit via the cutout portion. A flow passage sectional area of the motor disposing unit is greater than a flow passage sectional area of the first central partition unit.
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