Patents Examined by Thomas Truong
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Patent number: 12046950Abstract: A brushless motor includes a stator and a rotor installed in the stator. The stator includes a front insulating frame and a rear insulating frame. The rotor includes a rotating shaft, a front bearing, a rear bearing, a front-end cover and a rear-end cover. The front-end cover is located on the front side of the rotor and installed on the front bearing. The rear-end cover is located on the rear side of the rotor and is installed on the rear bearing and abuts against the rear insulating frame. The front side of the front insulating frame is provided with multiple first snap parts. The front-end cover is provided with multiple second snap parts in the circumference. The first snap parts are snap-fitted with the second snap parts.Type: GrantFiled: December 9, 2020Date of Patent: July 23, 2024Assignee: Nanjing Chervon Industry Co., Ltd.Inventors: Masatoshi Fukinuki, Yasheng Chen, Wei Lu
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Patent number: 12040662Abstract: A rotor assembly for an electric motor includes a rotor core and a plurality of magnets. The rotor core defines a rotation axis. Each of the magnets includes a magnet stem portion and a magnet arm portion. The magnet stem portion extends radially relative to the rotational axis to present a radially outermost stem end. The magnet arm portion is located at least in part radially outward from the stem end. In addition, the magnet arm portion extends circumferentially in opposite directions relative to the magnet stem portion.Type: GrantFiled: May 18, 2021Date of Patent: July 16, 2024Assignee: Nidec Motor CorporationInventors: Bruce Ley, Timothy H. Sullivan, Scott Wolf
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Patent number: 12040665Abstract: Provided is a rotor of a rotating electric machine, including: a rotor core; an end plate provided at an end portion of the rotor core in an axial direction of the rotor core; and a shaft passing through the rotor core and the end plate along the axial direction. The end plate includes: a flat plate portion that has an annular shape and is held in contact with the rotor core; and a warp portion that is formed more on an inner peripheral side of the end plate than the flat plate portion and is held in contact with the shaft. In a radial cross section of the end plate, the warp portion is warped so as to be apart from the rotor core as extending away from the flat plate portion.Type: GrantFiled: July 11, 2019Date of Patent: July 16, 2024Assignee: Mitsubishi Electric CorporationInventors: Masafumi Okazaki, Satoru Akutsu
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Patent number: 12034338Abstract: The invention pertains primarily to a rotary electric machine, in particular for a motor vehicle, including: —a stator comprising a body provided with teeth delimiting slots and a winding that is housed in the slots of the stator body; —a rotor (12) comprising a body (21) and poles (22) that are formed by permanent magnets (23), characterized in that —two successive polar angles, each corresponding to a circumferential extent of a pole (22), or —two successive dual polar angles (A0-A4), each corresponding to a circumferential extent of two adjacent poles (22), —exhibit an angular difference in relation to one another that is dependent on an angular offset parameter (6) related to a stator pitch.Type: GrantFiled: June 25, 2019Date of Patent: July 9, 2024Assignee: Valeo Equipements Electriques MoteurInventors: Radu Fratila, Adham Kaloun
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Patent number: 12027916Abstract: The presently disclosed invention provides an outer rotor brushless direct current motor that includes a tire integrated as part of the outer rotor, and is thus configured as a direct drive wheel, such as may be used on a mobile robot. The drive wheel includes a cylindrical outer rotor having a plurality of poles positioned on an inner surface, a stationary stator spaced inwardly from the rotor and defining a magnetic clearance gap between the plurality of poles of the rotor and a plurality of electromagnets positioned on an outer circumference of the stator, and a stationary central shaft. The stator is mounted to the central shaft and the rotor is configured for rotation about the stator.Type: GrantFiled: July 30, 2021Date of Patent: July 2, 2024Assignee: IAM Robotics, LLCInventor: Vladimir Altman
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Patent number: 12027806Abstract: A device and a method for predictive brush control in separately excited electric motors.Type: GrantFiled: December 15, 2021Date of Patent: July 2, 2024Assignee: AUDI AGInventor: Sebastian Kirschner
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Patent number: 12021419Abstract: An electronic module includes a first supporting element, a second supporting element, and a plurality of components arranged on the first supporting element and the second supporting element. The first supporting element and the second supporting element are electrically conductively connected, and the second supporting element forms an intermediate chamber in which the first supporting element is arranged.Type: GrantFiled: January 13, 2020Date of Patent: June 25, 2024Assignee: Bayerische Motoren Werke AktiengesellschaftInventor: Torsten Franke
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Patent number: 12021413Abstract: The rotating electrical machine includes a rotor that has a rotor core, a key portion formed protruding in a radial direction from an inner peripheral face of the rotor core, a stress relaxing groove, which is provided at both ends of the key portion and is formed recessed farther to a radial direction outer side than the inner peripheral face of the rotor core, and a multiple of balancing holes provided one each between each pair of a multiple of magnetic poles of the rotor core, wherein lengths from a center of the rotor core to a center of each of the multiple of balancing holes are such that a length of a first straight line that passes through a center of the key portion is less than a length of an nth straight line that intersects with the first straight line vertically.Type: GrantFiled: February 7, 2020Date of Patent: June 25, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Kengo Komori, Kosho Yamane
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Patent number: 12017786Abstract: An auxiliary fan based hybrid cooling system of an electric machine is contemplated. The hybrid cooling system comprises a propeller positioned on an exterior portion of an enclosure and mechanically coupled to a rotor, at least one electronic component, a stator, the rotor, and an auxiliary fan disposed within the enclosure, and wherein: in a single cooling mode, the propeller rotates to generate air that is channeled into the enclosure, in a dual cooling mode: the propeller rotates to generate the air that is channeled into the enclosure, a coupling mechanism simultaneously engages the rotor and the auxiliary fan and links the propeller to the auxiliary fan by the engaging of the rotor with the auxiliary fan, and the auxiliary fan, rotates responsive to the rotation of the propeller in the dual cooling mode.Type: GrantFiled: March 30, 2022Date of Patent: June 25, 2024Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.Inventors: Shailesh N. Joshi, Hiroshi Ukegawa
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Patent number: 12018549Abstract: A permanent magnet electric generator for use in downhole applications has a rotor element rotatable about an axis, extending in a radial direction generally perpendicular to the axis and one or more permanent magnets attached to the rotor for generating magnetic fields. A stator element also extends in a radial direction generally perpendicular to the axis. A shaft is connected to the rotor and rotatable about the axis, the shaft extends through the stator. The linear distance along the shaft between the rotor and stator defines a gap that is variable and resistant to debris buildup.Type: GrantFiled: March 25, 2020Date of Patent: June 25, 2024Assignee: Halliburton Energy Services, Inc.Inventors: James Dan Vick, Jr., Richard Decena Ornelaz
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Patent number: 12021434Abstract: An electric assembly includes. a box assembly, a motor, and a transmission. An mounting plate is disposed in the box assembly, and the mounting plate divides a space within the box assembly into a motor holding cavity and a transmission holding cavity. The motor is disposed in the motor holding cavity. The transmission is disposed in the transmission holding cavity, and the motor is power-coupled to the transmission such that the motor and the transmission are directly integrated through the box assembly without external connection of the motor and the transmission. The mounting plate is a monolithically integral part of the box assembly.Type: GrantFiled: February 15, 2023Date of Patent: June 25, 2024Assignee: BYD COMPANY LIMITEDInventors: Guangquan Chen, Daqi Chen, Chunlei Liu, Shuanghong Jing
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Patent number: 12011583Abstract: There is provided an intravascular blood pump for insertion into a patient's heart. The blood pump comprises a slotless permanent magnet motor contained within a housing, the motor having p magnet pole pairs and n phases, where p is an integer greater than zero, and n is an integer ?3. The motor comprises a stator extending along a longitudinal axis of the housing and having 2np coils wound to form two coils per phase per magnet pole pair. The stator comprises inner and outer windings each comprising np coils electrically connected such that the current flowing through the coils is in the same direction, the coils of the outer winding arranged on an outer surface of the coils of the inner winding.Type: GrantFiled: April 6, 2023Date of Patent: June 18, 2024Assignee: ABIOMED, INC.Inventor: Jimpo Wang
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Patent number: 12009700Abstract: A rotor for rotary electric machine includes shaft that includes flange portion, rotor core that fits to shaft wherein manner that rotational torque can be transmitted between rotor core and shaft, first end plate that covers one end face of rotor core in axial direction, second end plate that covers another end face of rotor core in axial direction, nut member that is screwed to shaft and holds rotor core with flange portion in axial direction, first washer provided between flange portion and first end plate in axial direction, and second washer provided between nut member and second end plate in axial direction. Flange portion protrudes to outer radial side from outer peripheral surface of shaft to which rotor core is fitted. First washer is in contact with seat surface of flange portion in axial direction, and has outer diameter larger than outer diameter of seat surface of flange portion.Type: GrantFiled: March 26, 2021Date of Patent: June 11, 2024Assignee: AISIN CORPORATIONInventors: Shumpei Toyama, Yosuke Kimura, Ryohei Inoue
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Patent number: 12009698Abstract: A rotor includes a plurality of cores stacked in an axial direction, a permanent magnet, and a nonmagnetic resin. The plurality of cores include a magnet insertion hole, a first opening communicating with one end of the magnet insertion hole in a circumferential direction, and an indent part communicating with the first opening and indented in the circumferential direction. The permanent magnet is disposed in the magnet insertion hole. The nonmagnetic resin is provided in the first opening and the indent part.Type: GrantFiled: December 12, 2019Date of Patent: June 11, 2024Assignee: Mitsubishi Electric CorporationInventors: Takaya Shimokawa, Hiroki Aso, Naoki Tamura
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Patent number: 12009722Abstract: An electric machine for a vehicle is disclosed. The electric machine includes a stator and a rotor rotatable relative to the stator about a rotational axis that defines an axial direction. A housing at least partially surrounds a housing interior and includes a first housing part and a second housing part that bound the housing interior. The rotor is rotatably mounted on the first housing part and the second housing part via a bearing device. At least one heat transmission body is arranged along the axial direction between at least one of the first and second housing parts and the rotor. The heat transmission body bounds, together with the at least one of the first and second housing parts, a coolant space through which a coolant can flow.Type: GrantFiled: July 24, 2019Date of Patent: June 11, 2024Assignee: Mahle International GmbHInventor: Peter Sever
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Patent number: 12003163Abstract: An actuator and a vehicle operation system with the actuator. The actuator includes a housing unit composed of a combination of internal components including a motor, a housing and a cover. A pair of terminals conveys external power to the motor. A terminal holder holds die pair of terminals. The terminal holder is accommodated in the housing unit as a sub-assembly separately from the housing unit.Type: GrantFiled: July 27, 2021Date of Patent: June 4, 2024Assignee: DENSO CORPORATIONInventors: Daisuke Nishio, Tomoki Yamashita, Itsuki Funaba, Kazuto Kitou
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Patent number: 11996734Abstract: A stator includes: a stator core including a plurality of stator teeth in a circumferential direction with respect to a center of rotation of a rotary electric machine; a stator coil disposed on a bottom portion side of each of a plurality of stator slots formed between the stator teeth; and a stator magnet disposed on an opening side of each of the plurality of stator slots and having the same polarity in a radial direction, and in each of the stator slots, the stator magnet is divided at a center in the circumferential direction of the stator slot.Type: GrantFiled: January 21, 2020Date of Patent: May 28, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Haruyuki Kometani, Ryoji Miyatake, Takuro Yamada, Kenji Tanaka
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Patent number: 11990817Abstract: A shaft of a motor includes a first shaft and a second shaft extending from the first shaft to one axial side. A housing includes a neutralizing device holder that holds a first neutralizing device. The neutralizing device holder includes a seal holder that is arranged radially outward of the second shaft and holds a seal member. The first neutralizing device electrically connects the second shaft and the neutralizing device holder. The seal member seals a gap between the second shaft and the seal holder, and is arranged on the other axial side of the first neutralizing device.Type: GrantFiled: June 24, 2022Date of Patent: May 21, 2024Assignee: NIDEC CORPORATIONInventors: Takayuki Makino, Masato Aono
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Patent number: 11988640Abstract: An ultrasonic transducer device includes a bottom electrode layer of a transducer cavity disposed over a substrate. The bottom electrode layer includes a bottom layer of a first type metal; a top layer of the first type metal; a second type metal disposed between the bottom layer and the top layer; and at least one intermediate layer of the first type metal disposed between the bottom layer and the top layer, the at least one intermediate layer configured so as to define at least two discrete layers of the second type metal.Type: GrantFiled: March 10, 2021Date of Patent: May 21, 2024Assignee: BFLY OPERATIONS, INC.Inventors: Jianwei Liu, Lingyun Miao, Victor L. Pushparaj
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Patent number: 11984795Abstract: A rotating electrical machine includes a rotor and a magnet unit. The rotating electrical machine also includes a cylindrical stator and a housing. The stator is equipped with a stator winding made up of a plurality of phase windings. The stator is arranged coaxially with the rotor and faces the rotor. The housing has the rotor and the stator disposed therein. The rotor includes a cylindrical magnet retainer to which the magnet unit is secured and an intermediate portion which connects between a rotating shaft of the rotor and the magnet retainer and extends in a radial direction of the rotating shaft. A first region located radially inside an inner peripheral surface of a magnetic circuit component made up of the stator and the rotor is greater in volume than a second region between the inner peripheral surface of the magnetic circuit component and the housing in the radial direction.Type: GrantFiled: September 22, 2021Date of Patent: May 14, 2024Assignee: DENSO CORPORATIONInventors: Yuki Takahashi, Makoto Taniguchi