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公开(公告)号：US20240328549A1
公开(公告)日：2024-10-03
申请号：US18619766
申请日：2024-03-28
申请人： Nidec Corporation
IPC分类号： F16L33/035 , F16L37/086 , F16L37/35
CPC分类号： F16L33/035 , F16L37/086 , F16L37/35
摘要： A cylinder includes a cylindrical portion, an insertion portion, and a first sealing portion. The cylindrical portion has a central axis, extends in an axial direction along the central axis, and allows liquid to flow. The insertion portion extends along the central axis and is inserted into the inside of the cylindrical portion. The first sealing portion seals a space between the cylindrical portion and the insertion portion. The insertion portion includes a recessed portion and a second sealing portion. The recessed portion is annular. The recessed portion is located along an outer peripheral surface of the insertion portion and accommodates the first sealing portion. A second sealing portion seals a space between a step on a bottom surface of the recessed portion and the first sealing portion.
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公开(公告)号：US20200309191A1
公开(公告)日：2020-10-01
申请号：US16787439
申请日：2020-02-11
申请人： Nidec Corporation
摘要： A rotating-side magnet has a tubular shape extending in an axial direction and has different magnetic poles in the axial direction. A fixed-side magnet has a tubular shape extending in the axial direction, opposes the rotating-side magnet with a gap in the radial direction, and has magnetic poles radially different from the magnetic poles of the rotating-side magnet. Fixed-side auxiliary members each of which is made of a ferromagnetic material are provided at both axial ends of the fixed-side magnet.
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公开(公告)号：US20200309139A1
公开(公告)日：2020-10-01
申请号：US16787066
申请日：2020-02-11
申请人： Nidec Corporation
摘要： A gas dynamic pressure bearing includes a shaft centered on a central axis extending in an up-down direction, and a sleeve that faces at least a portion of the shaft in a radial direction. The portion in which the sleeve and the shaft face each other in the radial direction includes a first dynamic pressure portion at each of both ends in the axial direction, and a second dynamic pressure portion between the first dynamic pressure portions. In the first dynamic pressure portion, one of the sleeve and the shaft includes dynamic pressure grooves arranged in a circumferential direction. A sum of center angles of groove widths of the dynamic pressure grooves in a cross-section cut along a plane orthogonal to the central axis is about 144° or more and about 216° or less.
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公开(公告)号：US20130120868A1
公开(公告)日：2013-05-16
申请号：US13739415
申请日：2013-01-11
申请人： Nidec Corporation
发明人： Junya MIZUKAMI , Takayuki OE , Yoichi SEKII , Naoki SABASHI , Takehito TAMAOKA , Takashi YAMAMOTO , Shigeki HORIKI , Kazushi MIURA , Mitsuhiro TAKEMOTO , Hironori ANDO , Katsuya TAKAHASHI
CPC分类号： H02K7/08 , F16C17/107 , F16C33/745 , F16C2226/40 , F16C2370/12 , G11B15/00 , G11B19/2036 , G11B25/043 , H02K5/1675
摘要： A motor includes a seal cap and a tubular portion. The seal cap includes a first seal cap lower surface which is an annular surface facing axially downward, and a second seal cap lower surface which is an annular surface facing axially downward and arranged radially outward of the first seal cap lower surface. The tubular portion includes a first tubular portion upper surface which is an annular surface arranged axially opposite to the first seal cap lower surface, and a second tubular portion upper surface which is an annular surface arranged radially outward of the first tubular portion upper surface and in contact with the second seal cap lower surface. The first tubular portion upper surface includes an oil-repellent film region covered with an oil-repellent film. A substantially annular radially extending gap is defined between the first tubular portion upper surface and the first seal cap lower surface.
摘要翻译： 马达包括密封盖和管状部分。 密封盖包括第一密封盖下表面，其是面向轴向向下的环形表面，以及第二密封帽下表面，第二密封帽下表面是面向轴向向下并且布置在第一密封盖下表面的径向外侧的环形表面。 管状部分包括第一管状部分上表面，该第一管状部分上表面是与第一密封帽下表面轴向相对布置的环形表面，以及第二管状部分上表面，其是设置在第一管状部分上表面的径向外侧的环形表面， 与第二密封盖下表面接触。 第一管状部分上表面包括被拒油膜覆盖的拒油膜区域。 在第一管状部分上表面和第一密封帽下表面之间限定基本环形的径向延伸的间隙。
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公开(公告)号：US20240328731A1
公开(公告)日：2024-10-03
申请号：US18616242
申请日：2024-03-26
申请人： Nidec Corporation
CPC分类号： F28F27/00 , F16K15/026 , F28F2265/12
摘要： A fluid machine includes a flow path including an outflow port of a fluid, a first portion through which the fluid flows from the other side to one side in a first direction, and a second portion through which the fluid flows. The second portion is located between one end of the first portion in the first direction and the outflow port. The fluid machine further includes a check valve portion that is movable along the first direction in the first portion, and is located at a first position at which the one end is closed, a second position that is located on one side in the first direction and through which the fluid can circulate between the first and second portions, and a third position at which the one end is closed and that is located on another side in the first direction with respect to the first position.
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公开(公告)号：US20240218952A1
公开(公告)日：2024-07-04
申请号：US18396938
申请日：2023-12-27
申请人： Nidec Corporation
CPC分类号： F16L41/088 , F16L3/015 , F16L37/46 , F16L37/2445
摘要： A connector includes a flow path extending in an axial direction along a central axis, a body including a through hole extending in the axial direction, a pipe including a through hole extending in the axial direction, and a seal including a sealing material between the body and the pipe. The body includes a body-side opposing surface opposing the pipe. The pipe includes a pipe-side opposing surface opposing the body. The seal is between the body-side opposing surface and the pipe-side opposing surface. The seal includes a reservoir in which the sealing material collects between the body-side opposing surface and the pipe-side opposing surface.
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公开(公告)号：US20240008224A1
公开(公告)日：2024-01-04
申请号：US18215883
申请日：2023-06-29
申请人： Nidec Corporation
IPC分类号： H05K7/20
CPC分类号： H05K7/20327 , H05K7/20354 , H05K7/20381 , H05K7/20136
摘要： A cooling assembly includes a radiator, a pump and a casing. The radiator includes a plurality of refrigerant flow paths and a plurality of ventilation paths. The radiator is operable to cool a refrigerant circulating in the plurality of refrigerant flow paths with air flowing through the plurality of ventilation paths. The pump is connected to the radiator to pressurize the refrigerant. The casing accommodates the radiator and the pump. The radiator is inclined with respect to a first surface of the casing. At least a portion of the pump is positioned between the radiator and the first surface.
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公开(公告)号：US20230389228A1
公开(公告)日：2023-11-30
申请号：US18202322
申请日：2023-05-26
申请人： Nidec Corporation
IPC分类号： H05K7/20
CPC分类号： H05K7/20263 , H05K7/20254 , H05K7/20272
摘要： A cooling assembly is connectable with a cold plate that comes into thermal contact with a heat source, and includes a first manifold, a second manifold, and a radiator. The first manifold causes a refrigerant having circulated through a first pipe to flow out from outflow ports toward the cold plate. In the second manifold, the refrigerant flowing into inflow ports from the cold plate circulates through a second pipe. In the radiator, the refrigerant having circulated through the second pipe circulates through the flow paths arranged side by side at intervals. Each of the first and second pipes opposes a portion of the radiator in the first direction.
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公开(公告)号：US20230247792A1
公开(公告)日：2023-08-03
申请号：US18100581
申请日：2023-01-24
申请人： Nidec Corporation
IPC分类号： H05K7/20
CPC分类号： H05K7/20272 , H05K7/20254
摘要： A cooling device includes a first cooling section, a second cooling section, a first pump section, a second pump section, a branch section, a first flow path section, a second flow path section, a merging section, and a connection section. The branch section branches a refrigerant into two. The first flow path section connects the first cooling section and the first pump section, and one portion of the refrigerant passes through the first flow path section. The second flow path section connects the second cooling section and the second pump section, and another portion of the refrigerant passes through the second flow path section. The merging section merges the refrigerant having passed through each of the first flow path section and the second flow path section. The connection section connects the first and second flow path sections between the branch section and the merging section.
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公开(公告)号：US20230069806A1
公开(公告)日：2023-03-02
申请号：US17899696
申请日：2022-08-31
申请人： Nidec Corporation
IPC分类号： F28F9/26
摘要： A heat dissipation device includes a radiator, a first tank, and a pump assembly. The radiator cools liquid and extends in a first direction. The first tank is connected to the radiator, and the liquid passes through the first tank. The pump assembly is connected to the first tank and circulates the liquid flowing in from the first tank. The radiator includes a pipe through which the liquid passes. The pipe extends along the first direction. The pump assembly is located on one side in the first direction of the radiator. The pump assembly includes a first pump, a second pump, and a flow path portion. The first pump feeds and circulates the liquid. The second pump feeds and circulates the liquid. The flow path portion guides the liquid fed from the first pump and the second pump toward an outside of the pump assembly.
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