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公开(公告)号：US11355993B2
公开(公告)日：2022-06-07
申请号：US16125933
申请日：2018-09-10
IPC分类号： H02K5/22 , H02K7/116 , B60N2/02 , H02K5/06 , H02K5/10 , H02K7/08 , H02K5/20 , H02K5/04 , H02K7/14
摘要： A vehicle seat actuator includes an electric motor and a gear set that connects the drive motor to the seat and transmits the output of the motor to the vehicle seat. The drive motor and gear set are each disposed in an individual, dedicated housing component. The individual housing components are then assembled together to provide the actuator. The housing components are maintained in the assembled configuration using snap fit mechanical fasteners. Each snap-fit fastener includes a receiving portion provided on one housing component and an insertion portion provided on the other housing component. The receiving portion may be a slot formed in the gear housing that is partially obstructed by an elastic member, while insertion portion is an ear that protrudes from an outer surface of the drive motor housing and forms both a snap-fit engagement with the elastic member and a press-fit engagement with the slot.
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公开(公告)号：US11251673B2
公开(公告)日：2022-02-15
申请号：US16554459
申请日：2019-08-28
摘要： A motor is contained in a motor container space. A controller is contained in a controller container space. The motor container space and the controller container space are arranged in series in a direction of a rotation axis of a motor shaft, while interposing a partition wall therebetween. The motor shaft is inserted in a motor shaft through-hole of the partition wall. A magnet is disposed at an end of the motor shaft, in the controller container space. A rotation sensor is disposed in the controller container space oppositely to the magnet, for monitoring a rotational position of the motor shaft on the basis of variation in magnetic field due to rotation of the magnet. A cover made of nonmagnetic metal is disposed between the magnet and the rotation sensor so as to cover the motor shaft through-hole.
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公开(公告)号：US11165289B2
公开(公告)日：2021-11-02
申请号：US16135411
申请日：2018-09-19
申请人： Bühler Motor GmbH
发明人： Achim Brunner , Armin Suttner-Reimann , Mladen Zec
摘要： An electronically commutated direct current motor made up of a cylindrically shaped non-ferrous stator winding; a cylindrically shaped, magnetically conductive back iron arranged radially outside of the stator winding; and a cylindrically shaped permanent magnet rotor arranged concentrically within the stator winding, wherein the magnetically conductive back iron has different magnetic conductivities over its circumference.
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公开(公告)号：US20210320566A1
公开(公告)日：2021-10-14
申请号：US17223527
申请日：2021-04-06
发明人： Kouki YAMAMOTO , Mikio YOSHIDA , Kenji HAYAKAWA , Takuya SAGAWA , Yusuke KINOSHITA , Shunsuke AMBO , Junya KAIDA
摘要： An electric compressor includes a compression part, an electric motor, an inverter device, and a housing. The inverter device includes an inverter circuit, a noise reduction unit, and a circuit board. The noise reduction unit includes a common mode choke coil and a smoothing capacitor. The common mode choke coil includes an annular core, a pair of winding wires, and an annular electrical conductor. The electrical conductor is split into a first metal plate and a second metal plate in a circumferential direction. The first metal plate is thermally coupled to the housing. The second metal plate is electrically connected to the first metal plate. An electrical resistance value of the first metal plate is larger than that of the second metal plate.
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公开(公告)号：US20210234434A1
公开(公告)日：2021-07-29
申请号：US16901082
申请日：2020-06-15
申请人： LG ELECTRONICS INC.
发明人： Deokkyu LEE , Jinho YOON , Junggu LEE
摘要： A motor housing assembly for cooling a motor assembly is disclosed. The motor housing assembly includes a stator and a rotor. To reduce a weight and a manufacturing cost, the motor housing assembly includes an aluminum housing coupled to an outer circumferential surface of a motor assembly and configured to form a first space between the aluminum housing and the motor assembly, the first space including an oil flow channel and a plastic housing coupled to an outer circumferential surface of the aluminum housing and configured to form a second space between the plastic housing and the aluminum housing, the second space including a water flow channel.
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公开(公告)号：US10985629B2
公开(公告)日：2021-04-20
申请号：US16124906
申请日：2018-09-07
发明人： Seongchan Pack , Su Jung Han , Martin S. Kramer , Song He
摘要： An integrated power electronics component configured for mitigating noise, vibration, and harshness includes a case formed from metal and configured to dampen a sound wave having a first frequency and a first amplitude and propagatable in a first direction. The case has a first surface and a second surface spaced apart from the first surface, a first stiffness, and a first strength, and the first and second surfaces include a structure defining a plurality of recessions therein. The component includes a cured polymer formed from a composition disposed on at least one of the first and second surfaces in each of the recessions to thereby dampen the sound wave in the first direction and in a second direction that is perpendicular to the first direction to a second frequency that is less than the first frequency and a second amplitude that is less than the first amplitude.
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公开(公告)号：US20200373796A1
公开(公告)日：2020-11-26
申请号：US16856313
申请日：2020-04-23
申请人： DENSO CORPORATION
发明人： Akihiro Kimura
摘要： A stator assembly has a motor housing of a cylindrical shape and a stator fixed to an inner peripheral wall of the motor housing by a shrink fitting process. A stator core of the stator includes a projecting portion in contact with the motor housing and a stopper portion, which is smaller than the projecting portion in a radial direction. The stopper portion is in contact with the motor housing in an actual-use temperature range. The projecting portions and the stopper portions are alternately arranged in a circumferential direction in a cyclic manner. A cycle unit is composed of one or more than one projecting portion and one or more than one stopper portion. Multiple stator core sheets are built up in such a way that the cycle units are alternately arranged in an axial direction and neighboring stator core sheets are displaced in the circumferential direction by a predetermined shift angle. A curvature radius of the projecting portion at a position, at which the projecting portion is in contact with the motor housing, is smaller than a radius of a circumscribed circle of the projecting portion.
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公开(公告)号：US10729218B2
公开(公告)日：2020-08-04
申请号：US15376393
申请日：2016-12-12
IPC分类号： F04D25/06 , A45D20/12 , H02K7/14 , H02K5/173 , H02K5/24 , A45D20/00 , F04D29/053 , F04D29/056 , F04D29/32 , F04D29/38 , H02K1/12 , H02K1/27 , H02K5/06 , H02K7/08 , F26B21/00
摘要： A handheld device comprising a motor for generating an airflow through the device, the motor including: a frame for supporting a rotor assembly and a stator assembly, the frame including an inner wall and an outer wall and a plurality of diffuser vanes extending between the inner wall and outer wall; a rotor assembly including a shaft, a magnet, a bearing assembly and an impeller; and a stator assembly including a bobbin, a stator core and a winding wound around the bobbin; the frame being formed of zinc and the impeller being formed of aluminium.
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公开(公告)号：US10727714B2
公开(公告)日：2020-07-28
申请号：US15083900
申请日：2016-03-29
IPC分类号： H02K5/08 , H02K5/15 , B22D17/24 , B22D19/00 , H02K15/14 , B22D19/04 , B22D17/00 , B22D21/00 , H02K5/02 , H02K5/06
摘要： A machine component of an electric machine includes a metal base body and a sealing element, arranged on the base body, for thermally decoupling the machine component and a unit abutting it. The base body is manufactured by pressure die-casting. The sealing element is made from plastic and is connected to the base body in a form-fit manner during the pressure die-casting of the base body.
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公开(公告)号：US10715010B2
公开(公告)日：2020-07-14
申请号：US15891010
申请日：2018-02-07
摘要： An electric motor including a rotor, a stator, a motor housing having a controller can, and a controller having an electronic component disposed within the controller can. The controller can includes an insert comprising thermally conductive metal for exchanging heat with an external heat sink space.
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