Bearing Or Air-gap Adjustment Or Bearing Lubrication Patents (Class 310/90)
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Patent number: 11923744Abstract: The present disclosure provides a brushless direct drive linear servo actuator, comprising: a stator, a mover and a housing, wherein the stator is a pair of armatures arranged in mirror symmetry at both sides of the mover, the housing integrally encapsulates the stator and forms a cavity for the mover at the mover, and the mover has an output end protruding out of the housing and is linearly movable along a direction of the output end. A displacement signal emitter is provided at a side of the mover, and a signal receiver is provided within a cover arranged outside the housing on said side for detecting a displacement signal emitted by the emitter of the mover. The actuator of the present disclosure is characterized by high reliability, high accuracy and low cost.Type: GrantFiled: June 25, 2020Date of Patent: March 5, 2024Assignee: FUGNA MECHATRONICS CO., LTD.Inventors: Haifeng Zhang, Chengjiong Ying
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Patent number: 11919131Abstract: A hydraulically actuated working device having a hydraulic cylinder, a hydraulic piston that can be displaced in the hydraulic cylinder, a drive unit part which has a motor and a pump, and a hydraulic line leading to the hydraulic cylinder. The drive unit part is designed in an electrically insulating manner, to provide an electrically insulating separating layer, which passes through the working device in a crossing manner for electrical separation from the working device part with respect to an end of the hydraulic piston facing the drive unit part. The hydraulic line is guided through the separating layer, thereby also forming a partial region of the hydraulic line made of an electrically insulating material.Type: GrantFiled: May 16, 2019Date of Patent: March 5, 2024Assignee: GUSTAV KLAUKE GMBHInventor: Egbert Frenken
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Patent number: 11916446Abstract: A rotor for an electric machine includes a rotor assembly having an outer surface and including a plurality of poles with permanent magnets. A solid layer is formed on the outer surface of the rotor assembly and has an outer surface with a first coefficient of friction that is lower than a second coefficient of friction of the outer surface of the rotor assembly. The rotor includes an outer sleeve. The rotor assembly is press-fit into the outer sleeve.Type: GrantFiled: November 29, 2021Date of Patent: February 27, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Anthony Michael Coppola, Alireza Fatemi, Derek Frei Lahr, Kestutis A. Sonta, Alan G. Holmes
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Patent number: 11906024Abstract: A vehicle drive device includes: a rotating electrical machine that functions as a driving force source for wheels; an input member drivingly connected to rotating electrical machine; a pair of output members each drivingly connected to wheel; a differential gear mechanism that distributes rotation transmitted from rotating electrical machine to pair of output members; a transmission gear mechanism that drivingly connects input member and differential gear mechanism; a hydraulic pump that includes a pump rotor and chamber housing the pump rotor and that supplies oil to at least the rotating electrical machine; and a case. The case includes a partition portion that separates in an axial direction a first housing chamber housing rotating electrical machine and a second housing chamber housing transmission gear mechanism and differential gear mechanism). Pump chamber is formed in partition wall so as to be located between first and second housing chambers in the axial direction.Type: GrantFiled: September 24, 2021Date of Patent: February 20, 2024Assignee: AISIN CORPORATIONInventor: Ryohei Inoue
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Patent number: 11904460Abstract: A robot linear-object unit includes: a first part including cables, which lead to motors, that are covered by a flexible sheath having a circular outer shape in cross section; a second part including the cables in a loose state at one end of the first part; a plurality of third parts each including one or more of the cables of the second part bundled together for a connector connected to corresponding one of the motors, the third parts being covered by flexible covering materials having circular outer shapes in cross section; and a casing that accommodates the second part and is fixed to a movable part. The casing is provided with a plurality of through holes that allow the first and the third parts to pass through the casing. Spaces between the through holes, the sheath, and the covering materials are fixed in a liquid-tight state by cable glands.Type: GrantFiled: September 30, 2020Date of Patent: February 20, 2024Assignee: FANUC CORPORATIONInventors: Naoki Fujioka, Yuuto Tochio
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Patent number: 11903161Abstract: Particular embodiments described herein provide for an electronic device that can be configured to include a fan where the fan blades are decoupled from the center shaft. The fan can include a center shaft, a motor coil support, motor coils coupled to the motor coil support, a rotator coupled to the center shaft, and fan blades coupled to the rotator, where rotation of the fan blades is decoupled from the center shaft by the rotator. A blade support can be coupled to the rotator, where the blade support couples the fan blades to the rotator and magnets can be coupled to the blade support. In an example, the rotator can include an inner, an outer race, and bearings.Type: GrantFiled: June 26, 2020Date of Patent: February 13, 2024Assignee: Intel CorporationInventors: Srinivas Rao Konakalla, Prakash Kurma Raju, Bijendra Singh, Juha Tapani Paavola, Prasanna Pichumani
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Patent number: 11897185Abstract: The present disclosure relates to a system for manufacturing a hybrid component including a first thermal supplier configured to heat a steel plate, a rolling roll for undercut configured to pressurize the steel plate heated by the first thermal supplier, and to form an undercut on one surface of the steel plate, a first molding roll configured to pressurize the steel plate formed with the undercut to mold the steel plate in a shape of a component to be manufactured, a composite material feeder configured to supply a composite material tape to be seated on one surface of the steel plate formed with the undercut through the first molding roll, and a composite material pressurization roll configured to pressurize the steel plate on which the composite material tape is seated.Type: GrantFiled: September 9, 2021Date of Patent: February 13, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventor: Youn-Il Jung
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Patent number: 11892033Abstract: A motor according to the present application includes a rotating shaft, a bearing, a bearing holder configured to accommodate the bearing, a holder disposed at one end portion side of the bearing holder in a rotating shaft direction, and a lid disposed at another end portion side of the bearing holder in the rotating shaft direction. A labyrinth structure is formed of one end portion of the bearing holder and an inner peripheral portion of the holder, and/or a labyrinth structure is formed of the rotating shaft and the lid.Type: GrantFiled: February 21, 2022Date of Patent: February 6, 2024Assignee: MINEBEA MITSUMI Inc.Inventor: Seiya Fujimoto
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Patent number: 11894735Abstract: A manufacturing method of fan stator structure includes the steps of providing a fan stator; providing a plurality of coil lead wire holders at an end of the fan stator; and winding lead wires on the fan stator to form coils, and setting and connecting a front end and a back end of each of the lead wires to the coil lead wire holders. The above method eliminates the drawbacks of the conventional fan stator coil winding operation, such as requiring manual twisting and trimming of the lead wire front ends and back ends and leaking of tin solder occurred during welding of the lead wires to a circuit board.Type: GrantFiled: October 8, 2020Date of Patent: February 6, 2024Assignee: ASIA VITAL COMPONENTS (CHINA) CO., LTD.Inventors: Yeh-Chih Lu, Hsin-Hung Chen
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Patent number: 11892071Abstract: A bearing unit includes: a thrust damper extendable in an axial direction of a shaft placed in a gearbox, the movement of which toward one side in the axial direction is regulated; a shaft receiver component held by the thrust damper on the other side of the thrust damper in the axial direction; a metal holder that holds the shaft receiver component in such a manner as to be detachable in the axial direction; and an oilless metal held by the metal holder and placed on the other side of the shaft receiver component, in which the thrust damper, the shaft receiver component, the metal holder, and the oilless metal are integrated all together before being incorporated into the gearbox.Type: GrantFiled: October 14, 2022Date of Patent: February 6, 2024Assignee: MABUCHI MOTOR CO., LTD.Inventor: Kazuyuki Yamamoto
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Patent number: 11879475Abstract: A fan includes a motor base, a bearing, an impeller, a stator and a magnetic element. The motor base has a bearing stand in a center portion thereof. The impeller includes a metallic case, plural blades and a rotating shaft. A top surface of a top wall of the metallic case continuous with curved surface that defines part of a central opening, and a depth of the central opening is equal to a thickness of the top wall. The blades are disposed around an outer periphery of said metallic case. The rotating shaft is inserted into the central opening and penetrated through the bearing stand, wherein no raised ring structure is formed in the top wall, and the rotating shaft and the metallic case are jointed together by a laser welding process. The magnetic element is disposed on an inner wall of the metallic case and aligned with the stator.Type: GrantFiled: April 14, 2021Date of Patent: January 23, 2024Assignee: DELTA ELECTRONICS, INC.Inventors: Chiu-Kung Chen, Chao-Wen Lu
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Patent number: 11873897Abstract: A drive apparatus includes a motor that has a motor shaft extending in an axial direction, a transmission mechanism that is connected on one side in the axial direction of the motor shaft, a lock mechanism that restricts driving of the transmission mechanism, a housing that houses the motor, the transmission mechanism, and the lock mechanism, an oil that is stored in the housing, and an oil passage that circulates the oil. The housing includes a motor room that houses the motor, a gear room that houses the transmission mechanism and the lock mechanism, and a partition that is provided between the motor room and the gear room. The oil passage includes a pump that pumps the oil in the oil passage, a first feed flow passage that feeds the oil to the motor, and a second feed flow passage that feeds the oil to the lock mechanism.Type: GrantFiled: August 3, 2021Date of Patent: January 16, 2024Assignee: NIDEC CORPORATIONInventors: Shuhei Nakamatsu, Shinsuke Mizukami, Tsubasa Tamura, Keisuke Aso
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Patent number: 11863027Abstract: A rotating electrical machine and a method of manufacturing a rotating electrical machine. The machine including a machine frame, a rotor, a shaft attached to the rotor and bearings supporting the shaft and the rotor in the machine frame. The rotating electrical machine includes further an electrically conducting member having a hole, the electrically conducting member being attached to the frame such that the shaft extends through the hole.Type: GrantFiled: October 6, 2021Date of Patent: January 2, 2024Assignee: ABB Schweiz AGInventor: Kari Tikkanen
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Patent number: 11863043Abstract: A rotary electric machine includes a rotor having a hollow shaft, a housing, a current shunter fixed to the housing and in electrical contact with the shaft and the housing, and a nozzle member for feeding a fluid inside the shaft. The shaft has an open end portion on a first axial side. The housing includes a bottom wall on the first axial side from the open end portion, and a peripheral wall protruding from the bottom wall toward a second axial side and surrounding the open end portion. The nozzle member has a feeding tubular part at least partly inserted inside the shaft from the open end portion, and a flange portion protruding radially outward from the feeding tubular part. The current shunter is located radially inside the peripheral wall, and the flange portion is located between the current shunter and the bottom wall in an axial direction.Type: GrantFiled: March 4, 2022Date of Patent: January 2, 2024Assignee: NIDEC CORPORATIONInventors: Keisuke Nakata, Yuki Ishikawa
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Patent number: 11863030Abstract: A motor and a fan are provided. The motor has a stator assembly, two mutually independent rotor assemblies, and two mutually independent rotating shaft assemblies. The stator assembly has a stator core and two groups of mutually independent windings. The rotor assemblies are oppositely and coaxially arranged on two axial sides of the stator assembly and form an axial air gap with the stator assembly. The two rotor assemblies are configured to rotate independently. The two mutually independent rotating shaft assemblies are coaxially connected with the two rotor assemblies, respectively, and protrude in a direction of the same side away from the stator core along the axial direction of the motor.Type: GrantFiled: November 5, 2021Date of Patent: January 2, 2024Assignee: MIDEA WELLING MOTOR TECHNOLOGY (SHANGHAI) CO., LTD.Inventors: Ping Li, Yiming Hu, Guyu Wu, Di Wu, Liming Gong
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Patent number: 11855508Abstract: Provided is a waterproof motor for preventing external liquid from entering a housing thereof. The waterproof motor includes a housing, a motor shaft, a bearing, a motor packing, and a motor shaft O-ring provided between the motor packing and the bearing, wherein the motor shaft O-ring has a through hole formed in the center of a body part so that the motor shaft is inserted thereinto, projection parts are formed on the inner wall surface of the through hole toward the center of the through hole so as to be elastically deformed while outer surfaces of the projection parts come into contact with the outer surface of the motor shaft, and a storage groove is formed between the projection parts and stores lubricating oil such as grease.Type: GrantFiled: June 30, 2023Date of Patent: December 26, 2023Assignee: DUKSHIN CORP., LTD.Inventor: Chanil Park
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Patent number: 11846318Abstract: A system for controlling shaft displacement within a support structure, the system having a rotatable shaft, at least one bearing supporting the shaft, the at least one bearing having an inner race rotatable along with the shaft and an outer race circumferentially surrounding the inner race, an electromagnet assembly positioned about the shaft along a longitudinal axis thereof, and a controller that detects a radial motion of the shaft and determines a corrective force to reduce the radial motion of, or a parameter related to, the shaft, the controller commanding the electromagnet assembly to generate the corrective force to act on the shaft, the electromagnet assembly having a plurality of phases spaced circumferentially about the shaft, the controller commanding different phases of the electromagnet assembly to generate the corrective force so that a vector of the corrective force rotates about the longitudinal axis of the shaft.Type: GrantFiled: February 6, 2020Date of Patent: December 19, 2023Assignee: LORD CorporationInventors: Mark R. Jolly, Victor M. Zaccardo, Paul R. Black, Daniel E. Kakaley, Russell E. Altieri
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Patent number: 11845170Abstract: A power tool has a motor, a rotary shaft and a housing. The rotary shaft has a first end portion on a first direction side and a second end portion on a second direction side in an axial direction of the rotary shaft. The housing is configured to store a lubricant on the first direction side of the first end portion of the rotary shaft. The rotary shaft has a first hole and a second hole. The first hole extends in the axial direction and that has a first opening in the first end portion of the rotary shaft. The second hole extends in a direction crossing an axis of the rotary shaft, that communicates with the first hole. The second hole has a second opening in an outer peripheral surface of the rotary shaft. A spiral part is provided within the first hole.Type: GrantFiled: August 22, 2022Date of Patent: December 19, 2023Assignee: MAKITA CORPORATIONInventors: Yoshitaka Machida, Taro Hisano
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Patent number: 11843304Abstract: An electric assembly includes: a box assembly, a motor, and a transmission. A mounting plate is disposed in the box assembly and divides a space within the box assembly into a motor holding cavity and a transmission holding cavity arranged along an axial direction of a motor shaft. The mounting plate has a shaft via-hole making the motor holding cavity and the transmission holding cavity be in communication. The motor is disposed in the motor holding cavity. The transmission is disposed in the transmission holding cavity. The motor is power-coupled to the transmission. At least one of a surface of the mounting plate facing the motor and a surface of the mounting plate facing the transmission is provided with ribs including strip-shaped ribs extending along a radial direction of the motor. Heights of the strip-shaped ribs decrease from a center portion of the mounting plate to a periphery portion of the mounting plate.Type: GrantFiled: February 15, 2023Date of Patent: December 12, 2023Assignee: BYD COMPANY LIMITEDInventors: Guangquan Chen, Daqi Chen, Longfei Wei, Xin Wen
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Patent number: 11841024Abstract: Described herein are appliances such as a vacuum cleaners having an air flow passage and a fan assembly provided in the air flow passage. The fan assembly includes (a) a first motor comprising a first rotor, a first stator, and a first rotatable output shaft drivingly connected to the first rotor; and (b) a second motor comprising a second rotor, a second stator, and a second rotatable output shaft drivingly connected to the second rotor. The first rotatable output shaft is driving connected to the second stator; and a fan blade drivingly connected to the second rotatable output shaft. Also described herein are methods of energizing a fan assembly of a portable appliance.Type: GrantFiled: February 17, 2021Date of Patent: December 12, 2023Assignee: Omachron Intellectual Property Inc.Inventor: Wayne Ernest Conrad
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Patent number: 11828098Abstract: A drive device for adjusting a covering element of a vehicle includes an output element for adjusting the covering element; a motor unit that has an electric motor with a stator, a rotor, and an input shaft that is connected to the rotor and is rotatable about a shaft axis for driving the output element; and a drive housing that at least partially encloses the motor unit. The stator is connected via a bearing element to a stationary housing section of the drive housing, wherein the bearing element has a bearing opening in which the input shaft is supported such that it can rotate relative to the stator.Type: GrantFiled: September 5, 2017Date of Patent: November 28, 2023Assignee: BROSE FAHRZEUGTEILE GMBH & CO. KOMMANDITGESELLSCHAFT, WUERZBURGInventor: Gabriele Lange
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Patent number: 11817759Abstract: The electric machine includes a shaft, a rotor, a stator, and a frame. The shaft is supported rotatably on the frame with an axially locating sleeve bearing at each axial end of the shaft. The axial play limiting the axial movement of the shaft is greater in one of the two axially locating sleeve bearings compared to the axial play in the other of the two axially locating sleeve bearings. An axial movement of the shaft is limited only by the bearing with the smaller axial play during normal operational circumstances and by both bearings during exceptional events, the bearing with the greater axial play reducing the axial load of the first bearing in such exceptional events.Type: GrantFiled: January 5, 2022Date of Patent: November 14, 2023Assignee: ABB SCHWEIZ AGInventors: Janne Kamppuri, Samu Aarnivuo
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Patent number: 11811274Abstract: The present invention is directed to a power generation machine or device, comprising permanent magnets, a three-phase system, bifilar coils and a magnet arrangement disposed axially to the generator rotor; and comprising a system embedded by magnetic pulse control software for the moment of magnetic collapse or generation of electric power peaks or valleys, whereby a set of sensors detect the precise angular moment in which the coils have stored the maximum magnetic energy and then trigger their magnetic collapse or generation of electric power peaks or valleys by a switching process controlled by the signals coming from said sensors. All these elements are arranged in the rotor and circumferential stator, which generates electrical energy when moving.Type: GrantFiled: June 6, 2022Date of Patent: November 7, 2023Assignee: Magnetech S.A.C.Inventor: Jose Illanes
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Patent number: 11802576Abstract: A fan device includes a fan frame and a fan impeller. The fan frame includes a frame and a shaft seat. The shaft seat includes a shaft tube and a buffer. At least a part of the buffer is clamped between the shaft tube and the frame. The fan impeller is rotably disposed on the shaft tube of the shaft seat. An elastic coefficient of the buffer is larger than an elastic coefficient of the shaft tube.Type: GrantFiled: January 17, 2023Date of Patent: October 31, 2023Assignee: VAST GLORY ELECTRONICS & HARDWARE & PLASTIC (HUI ZHOU) LTD.Inventors: Jiasheng Lai, Shi Man Xu
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Patent number: 11799360Abstract: A linear electrical machine (LEM) comprising a stator mounted in a housing, the housing and stator defining a working cylinder, a central core within the working cylinder and defining a cylindrical stator bore cavity therebetween, a hollow translator axially movable within the working cylinder, extending into the stator bore cavity and forming an exterior magnetic circuit airgap between the translator and the stator, at least one fluid bearing between the central core and the translator providing a bearing gap, wherein the central core is axially fixed in relation to the stator, wherein the at least one fluid bearing provides coaxial location of the translator and central core.Type: GrantFiled: February 1, 2018Date of Patent: October 24, 2023Assignee: Libertine FPE LtdInventors: Edward Haynes, Samuel Cockerill
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Patent number: 11799349Abstract: The present invention may provide a motor including a rotary shaft, a yoke coupled to the rotary shaft, a stator disposed between the rotary shaft and the yoke, a magnet disposed between the stator and the yoke, a bearing housing disposed between the stator and the rotary shaft, a first bearing disposed between the yoke and the bearing housing, and a second bearing disposed between the bearing housing and the rotary shaft, wherein the stator includes a stator core and a first insulator and a second insulator which are coupled to the stator core, a portion of the first insulator is disposed between the first bearing and the stator core, and a portion of the second insulator is in contact with the bearing housing.Type: GrantFiled: October 29, 2019Date of Patent: October 24, 2023Assignee: LG INNOTEK CO., LTD.Inventor: Young Dae Park
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Patent number: 11794520Abstract: A conductive caster wheel is adapted to be mounted on a cart. The conductive caster wheel includes a caster hub adapted to be sleeved on a bearing of the cart, a wheel body sleeved on the caster hub, and a conductive plate disposed inside the caster hub and the wheel body. The conductive plate has an inner conductive section and an outer conductive section. The inner conductive section is exposed from an inner surrounding surface of the caster hub, and is adapted to be electrically connected to the bearing. The outer conductive section is electrically connected to the inner conductive section, is exposed from an outer surrounding surface of the wheel body, and is adapted to be in contact with a ground surface.Type: GrantFiled: December 21, 2021Date of Patent: October 24, 2023Inventor: Chung-Hsiu Su
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Patent number: 11791688Abstract: The hollow shaft motor according to the present invention comprises: a housing 11 having a cylindrical shape; an upper cover 12 coupled to an upper portion of the housing 11; a lower cover 15 coupled to a lower portion of the housing 11; a stator assembly 20 located in the housing 11; and a rotor assembly 30 located in the stator assembly 20 to rotate, wherein the rotor assembly 30 comprises a hollow shaft 31, a rotor core 32 coupled to an outer circumference of the hollow shaft 31, and a plurality of magnets 33 attached to an outer circumference of the rotor core 32.Type: GrantFiled: August 9, 2019Date of Patent: October 17, 2023Assignee: BMC CO., LTD.Inventors: Ok Yun Kim, Kea Ho Lee, Haeng Chul Sin, Gwan Seon Jeong
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Patent number: 11791675Abstract: A housing for a rotary electric machine having stacked laminations forming a stator core includes a first portion forming a slip fit with a first series of the stacked laminations. A second portion forms an interference fit with a second series of the stacked laminations.Type: GrantFiled: March 6, 2020Date of Patent: October 17, 2023Assignee: LC Advanced Motor Technology CorporationInventors: Dylan Broomfield, Russel Hugh Marvin, Matthew Honickman
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Patent number: 11777362Abstract: A motor includes a stator that includes a stator core around which a stator winding is wound; magnets; a rotating body; a shaft; a rotor; a first bearing; a second bearing; a first metal bracket that fixes the first bearing; and a second metal bracket that fixes the second bearing. The stator core, the first metal bracket, and the second metal bracket are electrically connected, and when a connection point between the stator core and the first metal bracket or the second metal bracket is defined as a connection point A of a bearing outer ring, a capacitive member having a capacitance Cn is located between a portion having the same potential as the connection point A and a portion having a zero reference potential of a drive circuit that applies a voltage to the stator core.Type: GrantFiled: November 29, 2021Date of Patent: October 3, 2023Assignee: WOLONG ELECTRIC GROUP CO., LTD.Inventors: Tatsuo Maetani, Yoshinori Isomura, Feng Hu
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Patent number: 11764627Abstract: An electric machine including a shaft, a rotor back assembly surrounding a portion of the shaft, and two or more permanent magnets radially positioned around the perimeter of the rotor back assembly. The electric machine also includes a rotor fan with multiple fan blades formed in an exterior surface of the rotor back assembly and one or more ventilation channels extending through the rotor back assembly. Methods of exporting heat from an electric machine, wither from a machine housing or through the shaft is also disclosed. The heat exportation methods feature the circulation of a fluid with the rotor fan through the ventilation channels and into contact with the housing, or exporting heat from the rotor back assembly through the shaft.Type: GrantFiled: May 2, 2022Date of Patent: September 19, 2023Assignee: Zero-E TechnologiesInventors: Thomas H. Hopkins, Felipe J. Castillo, Scott T. Graham, Keith W. Klontz
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Patent number: 11764637Abstract: An inner-rotor motor including: an armature assembly including a rotating shaft, an armature unit coupled to the rotating shaft and a pressing unit; a frame assembly including a frame housing the armature unit, a first bearing unit located on one side with respect to the armature unit in an axial direction, and a second bearing unit located on another side with respect to the armature unit in the axial direction; and an urging structure that urges the rotating shaft in a direction away from the second bearing unit and that presses the pressing unit toward the first bearing unit.Type: GrantFiled: November 19, 2021Date of Patent: September 19, 2023Assignee: MINEBEA MITSUMI Inc.Inventors: Hiroaki Mochizuki, Minoru Kuroda
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Patent number: 11764638Abstract: A rotary electric machine system includes a rotary electric machine including a rotating shaft, and a housing for housing the rotary electric machine. A first bearing and a second bearing are provided between the housing and the rotating shaft. Gas supplied from a gas supply source that is located outside of the housing flows with a terminal casing for housing electric terminal portions as an upstream side and the housing as a downstream side. Further, the first bearing and the second bearing are disposed in a flow path within the housing.Type: GrantFiled: January 26, 2022Date of Patent: September 19, 2023Assignee: HONDA MOTOR CO., LTD.Inventors: Manabu Yazaki, Tatsuya Choji
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Patent number: 11764639Abstract: The invention relates to a bearing cap (10) and an electric motor (M) utilizing the same. The bearing cap (10) has a first annular protrusion (18) configured for fixing to a corresponding annular groove (27) of an axial end of the bearing seat (13) by an adhesive. The first annular protrusion (18) has a plurality of first cuts (28). With the bearing cap (10), sand or other impurities can be prevented from entering the bearing seat (13).Type: GrantFiled: March 22, 2021Date of Patent: September 19, 2023Assignee: JOHNSON ELECTRIC INTERNATIONAL AGInventors: Marco Mastrototaro, Nicola Re
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Patent number: 11754590Abstract: Systems and methods relating to sensors for measuring acceleration. Two attached containers are each filled with different liquids. At each junction of the two liquids, an indicator is placed. When acceleration forces are applied to the sensor, the indicator moves when the boundary between the two liquids similarly move. The amount of movement of the boundary and of the indicator is proportional to the amount of acceleration for applied. A tracking subsystem tracks the position of the indicator and, by determining the amount of movement of the indicator, the amount of acceleration force applied can be calculated. The indicator can be a particle or it can be a beam-like element that deflects when the boundary between the two liquids move.Type: GrantFiled: January 24, 2020Date of Patent: September 12, 2023Assignee: UTI LIMITED PARTNERSHIPInventors: Ahmed Youssef, Naser El-Sheimy
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Patent number: 11750072Abstract: A motor assembly includes a motor including a rotor including a shaft rotatable about a rotation axis and a stator surrounding the rotor from radially outside, a housing that accommodates the motor, a bearing that is fixed to the housing and rotatably supports the shaft, a resolver including a resolver rotor fixed to the shaft and a resolver stator fixed to the housing, and a contact that has conductivity, is fixed to the housing, and is in contact with a contacted portion at an end portion on one axial side of the shaft. The housing includes an accommodation space in which the contacted portion of the shaft is accommodated. The contact and the resolver are side by side in a direction along a rotation axis in the accommodation space.Type: GrantFiled: September 22, 2021Date of Patent: September 5, 2023Assignee: NIDEC CORPORATIONInventors: Takayuki Makino, Tatsuhiko Mizutani, Masato Aono
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Patent number: 11750048Abstract: The hollow shaft motor according to the present invention comprises: a housing 11 having a cylindrical shape; an upper cover 12 coupled to an upper portion of the housing 11; a lower cover 15 coupled to a lower portion of the housing 11; a stator assembly 20 located in the housing 11; and a rotor assembly 30 located in the stator assembly 20 to rotate, comprising a hollow shaft 31, a rotor core 32 coupled to the hollow shaft 31, and a plurality of magnets 33 arranged on an outer circumferential surface of the rotor core 32 at a certain interval, wherein the hollow shaft 31 is manufactured with a plastic resin by an insert injection molding in the state where the rotor core 32 and the magnet 33 are located in an insert injection mold.Type: GrantFiled: December 18, 2019Date of Patent: September 5, 2023Assignee: BMC CO., LTD.Inventors: Ok Yun Kim, Kea Ho Lee, Haeng Chul Sin, Gwan Seon Jeong
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Patent number: 11742716Abstract: The motor includes a shaft, a cartridge including a plurality of bearings that support the shaft, and a sleeve that surrounds the bearings, and a housing including a bottom portion for receiving an impact from outside and an attaching portion provided in the bottom portion. The bottom portion of the housing extends in a direction intersecting with respect to a longitudinal direction of the shaft, and the cartridge is removably attached to the attaching portion.Type: GrantFiled: December 19, 2022Date of Patent: August 29, 2023Assignee: MINEBEA MITSUMI Inc.Inventors: Koji Kebukawa, Katsutoshi Suzuki
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Patent number: 11735988Abstract: An electric machine for a drive system having a first DS rotor and a second DS rotor includes a first EM rotor rotatable about an axis in a first circumferential direction and including a plurality of magnets, the first EM rotor configured for mechanical coupling to the first DS rotor; and a second EM rotor rotatable about the axis in a second circumferential direction and including a plurality of windings, the second EM rotor configured for mechanical coupling to the second DS rotor and the plurality of magnets of the first EM rotor operably engaged with the plurality of windings of the second EM rotor.Type: GrantFiled: November 22, 2019Date of Patent: August 22, 2023Assignee: General Electric CompanyInventors: Darek Tomasz Zatorski, Jia Xiaochuan, Kurt David Murrow
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Patent number: 11722033Abstract: An electric motor adapted to apply torque to a drive shaft rotatable about an axis, the electric motor includes a stator, a rotor adapted to rotate relative to the stator, a primary bearing interoperably coupled to the stator and adapted to provide bearing support between the stator and the rotor, an auxiliary bearing interoperably coupled to the drive shaft, an annular shear adapter connected to the primary bearing and the auxiliary bearing, and a shear pin interoperably coupled to the primary bearing via the annular shear adapter and configured to break responsive to torque between the annular shear adapter and the drive shaft exceeding a predetermined torque threshold.Type: GrantFiled: August 24, 2021Date of Patent: August 8, 2023Assignee: Textron Innovations Inc.Inventors: Grant Michael Beall, Michael Raymond Hull
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Patent number: 11711004Abstract: In an axial gap motor, a rotor includes a plurality of rotor cores fixed in a circumferential direction of a rotor base, and a stator includes a plurality of stator cores fixed in a circumferential direction of a stator base, and coils wound around the stator cores. End faces of each of the rotor cores and end faces of the corresponding stator core are opposed to each other while being exposed to each other.Type: GrantFiled: April 12, 2021Date of Patent: July 25, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keiu Kanada, Kazuaki Haga, Toshimitsu Takahashi, Mayumi Takazawa, Takuya Nomura, Shinya Sano, Takeshi Tomonaga, Hisanori Koma, Yasuhide Yagyu, Kensuke Komori, Tatsuhiko Hirano, Masaaki Ito, Hiroaki Wakimoto
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Patent number: 11705795Abstract: A magnetic levitation motor has a housing, a plurality of stators and a plurality of rotors. The housing has a shaft hole there through, the shaft hole accepting a bearing, the bearing rotatably engages with a rotating shaft that extends from two ends of the housing, and a plurality of fastening portions are disposed on the rotating shaft. A main body section is disposed between at least two of the fastening portions, and the housing having a plurality of dividers to define a plurality of containing spaces. The stator has a fixing disk wrapped with a coil and having a through aperture the fixing disk, and the fixing disk has a plurality of first magnets circularly and radially arranged. The rotor has a moving disk with a toothed hole at a center the moving disk, and the moving disk having a plurality of second magnets arranged circularly and radially.Type: GrantFiled: August 31, 2021Date of Patent: July 18, 2023Inventor: Jin-Lang Wang
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Patent number: 11701769Abstract: A chainsaw (electric working tool) includes a body case; a cutting part (working implement); and a motor, wherein the motor is mounted in a cooling route in the body case; an intake communicating with the cooling route is opened on the body case; an air filter is housed between the intake and the cooling route; the body case has a filter insertion/extraction hole through which the air filter can be inserted and removed; the intake is opened on the outer surface of the body case; and the filter insertion/extraction hole is arranged at a portion other than that of the intake so that the motor can be efficiently cooled, dust hardly enters the cooling route, and maintenance can be easily performed.Type: GrantFiled: August 13, 2020Date of Patent: July 18, 2023Assignee: YAMABIKO CORPORATIONInventors: Hisato Osawa, Takeshi Maeno, Satsuki Yuzuki, Noriyuki Takeuchi
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Patent number: 11705782Abstract: A stator and a motor including a stator. The stator includes a stator hub, a plurality of stator teeth extending from the stator hub that define a stator slot having a stator slot base, at least one winding disposed in the stator slot, and one or more oscillating heat pipes disposed at least partially in the at least one winding. The at least one winding is held apart from the stator slot base so that a cooling channel is defined between an inner winding portion of the at least one winding and a portion of the one or more oscillating heat pipes is disposed in the channel so cooling fluid can be passed between the stator slot base and the inner winding portion to cool the inner winding portion via at least operation of the one or more oscillating heat pipes.Type: GrantFiled: September 23, 2021Date of Patent: July 18, 2023Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Abbas A. Alahyari, Kimberly Rae Saviers, Jagadeesh Kumar Tangudu, Joseph Turney
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Patent number: 11705773Abstract: An integrated magnetic shield and bearing holder useable with electric motors includes a shaft portion and a cover portion extending radially outward from the shaft portion. The shaft portion includes an inner wall defining a channel and a ledge extending radially inward from the inner wall. The cover portion includes a first layer, a second layer extending substantially parallel to the first layer, a magnetic shield extending between the first layer and the second layer, and an outer wall extending from the first layer and/or the second layer such that a space is defined between the outer wall and the shaft portion. The cover portion includes one or more retainers coupled to the magnetic shield to restrict movement of the magnetic shield relative to the first layer and/or the second layer.Type: GrantFiled: January 15, 2021Date of Patent: July 18, 2023Assignee: NIDEC CORPORATIONInventors: Takayuki Migita, Takumi Okada, Bradley Dunnill, Dan Fischer, Christopher Loewe, Ruben Rivera, Jose D Mendez, Daniel Mendoza, Manuel Gutierrez, Angel Noe
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Patent number: 11705798Abstract: An electric motor has an end shield and a sensor for detecting a magnetic field. The sensor is integrated into the end shield of the electric motor. An electric drive unit may include a brake, in particular an electromagnetically actuatable brake, and an electric motor, where a shielding element is arranged between the sensor and the brake.Type: GrantFiled: April 10, 2019Date of Patent: July 18, 2023Assignee: Lenze SEInventor: Rouven Wolfram
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Patent number: 11699967Abstract: An electric machine disposed within a housing includes a stator, a rotor, and one or more point field detectors. The stator receives current from an inverter. The rotor is connected to and rotating a shaft based on a magnetic field generated by the stator. The one or more point field detectors are configured to detect leakage flux within the housing. The stator, the rotor and the one or more point field detectors are disposed within the housing.Type: GrantFiled: March 9, 2021Date of Patent: July 11, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Muhammad H. Alvi, Alireza Fatemi, Suresh Gopalakrishnan, Chandra S. Namuduri
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Patent number: 11698078Abstract: On an inner circumferential surface (25a) of a housing (25) opposed to an outer circumferential surface (37a, 37b) of an outer ring, toward a front side in a rotation direction (B) of a rotation shaft (21), a first groove (41H, 41I) is formed as a groove portion for guiding an oil (39) in a direction toward a first oil supply hole (41D, 41E).Type: GrantFiled: March 30, 2018Date of Patent: July 11, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.Inventors: Yoshitomo Noda, Kengo Imaoka, Yukiho Ishida
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Patent number: 11698083Abstract: An electric centrifugal pump includes a water pump shell, a water sealing bearing, a water pump impeller, a spring washer, an inner motor cover, a bearing pedestal, a front rotor bearing, a motor stator, a motor rotor, a shaft of the motor rotor, a rear bearing of the motor rotor, a leading impeller, a leading impeller cover, a water pump driving control panel, a controller cover and a motor shell, and an internal forced cooling system is formed by the water inlet cavity of the water pump, an axial through hole of the shaft of the motor rotor, the leading impeller, a leading impeller cavity of the leading impeller, a spiral overflowing hole of the inner motor cover, a rotor cavity, a spiral overflowing hole of the bearing pedestal and the water pump impeller which are sequentially communicated.Type: GrantFiled: January 3, 2020Date of Patent: July 11, 2023Assignee: GUANGDONG JUNCHI SCIENCE AND TECHNOLOGY CO., LTD.Inventor: Xiuxia Wei
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Patent number: 11699937Abstract: A first elastic member is interposed between an outer peripheral surface of the circular core back portion and an inner wall surface of the second motor housing in a radial direction, both outer peripheral ends of the core back portion in the axial direction of the rotor are covered with the first elastic member, the first elastic member is assembled by being pinched between end surfaces of the first motor housing and the second motor housing which faces each other, and a second elastic member is assembled by being stacked between the bearing assembled in one of the pair of bearing housings and the bearing housing.Type: GrantFiled: July 20, 2021Date of Patent: July 11, 2023Assignee: SHINANO KENSHI KABUSHIKI KAISHAInventor: Yohei Maruyama