Patents Examined by Terrance L. Kenerly
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Patent number: 12081094Abstract: A drive device comprises at least one tubular linear motor (M1; M1?; M2) which has a cylindrical armature (20; 120) and a tubular stator (10) with a cylindrical magnetic yoke (11) and a through-hole (13) coaxial with the magnetic yoke (11). Electric drive coils (12; 112) are arranged in the magnetic yoke (11). The armature (20; 120) has a non-magnetic armature tube (21) in which permanent magnets (23) are arranged. The armature (20; 120) extends coaxially through the through-hole (13) and is mounted so as to be movable in its longitudinal direction relative to the stator (10). The drive device comprises linear ball bearings (15; 115), and the armature (20; 120) of the tubular linear motor (M1; M1?; M2) is mounted in the linear ball bearings (15; 115).Type: GrantFiled: August 24, 2020Date of Patent: September 3, 2024Assignee: NTI AGInventor: Ronald Rohner
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Patent number: 12074499Abstract: The invention relates to abasic body (1) for an electric motor (2), which comprises the following features: a substantially cylindrical outer wall (3), which forms a rotor space (4) for receiving a rotor (5) at least partially inside the outer wall (3) and on which a winding (6) can be mounted at least partially outside the latter; a laminated core (7) which is held by the outer wall (3); a receiving space (9) which serves to receive a printed circuit board (12) or another component of the electric motor (2) and which adjoins the rotor space (4); a partition wall (10) separating the receiving space (9) from the rotor space (4); at least one orienting device (13) for positionally orienting the printed circuit board (12) or the other component of the electric motor (2) inside the receiving space (9); a receptacle (17) for a cover (18) which closes the rotor space (4), said receptacle being situated on the outer wall (3) on the side of the rotor space (44) opposite to the partition wall (10); and an inner wall (Type: GrantFiled: February 21, 2020Date of Patent: August 27, 2024Assignee: METABOWERKE GMBHInventors: Bernd Fleischmann, Michael Schmohl, Stefan Bauer, Enrico Floete, Matthias Hiller, Bernd Wiesner, Thomas Stenzel
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Patent number: 12074484Abstract: A component for an electric machine includes a flat region in which an electric line runs when the component is integrated into the electric machine and which includes a sharp-edged structure. A polymer layer adheres to the flat region without further aid such as to mask the sharp-edged structure and thereby protect from damage the electric line on the flat region. The polymer layer is made of cured plastic adhesive and jetted onto the flat region in the form of threads, such that the threads are spin-coated on top of one another in the form of overlapping loops and form a network structure which spans the sharp-edged structure.Type: GrantFiled: December 14, 2020Date of Patent: August 27, 2024Assignee: Innomotics GmbHInventors: Klaus Büttner, Tobias Katzenberger, Klaus Kirchner, Bastian Plochmann, Matthias Warmuth
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Patent number: 12068638Abstract: A rotor and a method of making such a rotor, wherein the rotor has a shaft, a longitudinal axis, and a rotor packet connected to the shaft at least in torsion-resistant manner. The rotor packet is assembled from individual sheet lamellae, wherein the rotor packet has an opening for receiving the shaft. The shaft is a hollow shaft with a wall, wherein the wall of the shaft has, on its side facing toward the opening, recesses extending in the longitudinal direction. An electric motor, in particular a synchronous or hybrid synchronous machine, including a rotor and a stator, has such a rotor. The recesses are produced by cutting methods, in particular milling, or reshaping methods, in particular pressing.Type: GrantFiled: July 19, 2019Date of Patent: August 20, 2024Assignee: thyssenkrupp AGInventors: Mathias Schröder, Roland Buol
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Patent number: 12068662Abstract: A rotary mechanism connects a first rotary part and a second rotary part, without using a coupling and while allowing an installation error between the first rotary part and the second rotary part. A rotation body includes a first rotary part and a first fixed part. A flat plate is fixed to the first fixed part of the rotation body and has rigidity in a rotating direction of the first rotary part and flexibility in an axial direction for the rotating direction. A motor includes a second rotary part coaxially fixed to the first rotary part of the rotation body and a second fixed part fixed to the flat plate.Type: GrantFiled: September 9, 2021Date of Patent: August 20, 2024Assignee: Tokyo Electron LimitedInventor: Kiyoshi Mori
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Patent number: 12057756Abstract: A rotating device according to an embodiment includes a motor, an output gear to transmit the rotation of the motor to the external device, and a housing accommodating the motor and the output gear. The motor is held by holding parts formed at the housing via an adhesive having elasticity. The adhesive having elasticity is disposed between surfaces perpendicular to an axial direction in the holding parts of the housing, and a first end part and a second end part-of a frame.Type: GrantFiled: December 2, 2019Date of Patent: August 6, 2024Assignee: MINEBEA MITSUMI Inc.Inventors: Koichiro Hirabayashi, Yukimasa Matsumura, Seiya Fujimoto
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Patent number: 12046968Abstract: A wave winding for an electric machine in which a quantity of coil strands are provided connected in parallel. Each partial strand is a plurality of hairpins. Two different variants of hairpins are provided. A first variant in the turn region W has a winding step WK between the conductor elements which is shortened by one and in a second variant of the hairpins the turn region has a lengthened winding step that is greater than the shortened winding step. In all of the variants of the hairpins the contact regions are deformed by one half of the standard winding step in direction opposite the turn region.Type: GrantFiled: September 24, 2020Date of Patent: July 23, 2024Assignee: ZF FRIEDRICHSHAFEN AGInventor: Stefan Reuter
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Patent number: 12046959Abstract: An embodiment of the present invention relates to a cover assembly and a motor comprising same, the cover assembly comprising: a cover plate; a ground terminal disposed on the cover plate; and a capacitor connected to the ground terminal by means of a wire. The ground terminal comprises: a body unit; a ground unit bent from one area of the upper end of the body unit to a first direction; clip units extending from both sides of the body unit to a second direction that is opposite from the first direction; and a coupling unit extending from the lower part of the body unit. The wire is coupled to the clip units by means of insertion. Accordingly, the present invention enables the wire of the capacitor to be fixed in a temporarily assembled state and thus enables an automation process during assembly of the motor.Type: GrantFiled: September 6, 2023Date of Patent: July 23, 2024Assignee: LG INNOTEK CO., LTD.Inventors: Woo Seob Shim, Seong Hun Oh, Namu Jo
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Patent number: 12046979Abstract: A motor includes a stator, a rotor, and a bearing holder. The rotor is disposed inside the stator. The rotor rotates with respect to the stator. The bearing holder holds a bearing of the rotor. The stator includes a plurality of coils, a plurality of teeth, and a coupling portion. Around the plurality of teeth, the plurality of coils are respectively arranged via an insulator. The coupling portion is located closer to the rotor than the plurality of coils are. The coupling portion couples at least some adjacent ones of the plurality of teeth. The bearing holder is positioned within a plane intersecting at right angles with a rotational axis of the rotor by coming into contact with either respective inner peripheral tips of the plurality of teeth or the coupling portion.Type: GrantFiled: June 26, 2020Date of Patent: July 23, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventor: Akito Nakamura
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Patent number: 12040676Abstract: The VCM according to an exemplary embodiment of the present disclosure includes a base unit, a mover including a bobbin arranged at an upper surface of the base unit and formed with a plurality of rotation prevention units along a periphery and a first driving unit arranged at a periphery of the bobbin, a stator including a yoke configured to the base unit to surround the mover and inner yoke units each extended to between the rotation prevention units, and a second driving unit oppositely arranged to the first driving unit, and an elastic member elastically supporting the mover, wherein an object occurrence preventing portion is formed between the rotation prevention unit and the inner yoke units to decrease a contact area between the rotation prevention unit and the inner yoke units.Type: GrantFiled: May 15, 2023Date of Patent: July 16, 2024Assignee: LG INNOTEK CO., LTD.Inventor: Tae Jin Jung
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Patent number: 12040668Abstract: A stator having a plurality of stator bars disposed circumferentially at intervals around an axis is provided. Each of the stator bars has a set of windings wound therearound for generating a magnetic field generally parallel to the axis. A plurality of radially outwardly disposed electrical interconnects for connecting two or more windings together are provided radially outwardly of the plurality of stator bars and extending circumferentially along at least a portion of the outer periphery of the stator bars. A plurality of radially inwardly disposed electrical interconnects for connecting two or more windings together are also provided radially inwardly of the stator bars and extending circumferentially along at least a portion of the inner periphery of the stator bars. The outer periphery of the stator is devoid of radially outwardly disposed interconnects along one or more portions.Type: GrantFiled: May 11, 2020Date of Patent: July 16, 2024Assignee: YASA LIMITEDInventors: Tim Woolmer, Tom Hillman
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Patent number: 12034360Abstract: A brushless motor with an internal integrated heat dissipation module thereof is provided. The brushless motor includes a stator including at least one recess to receive a corresponding heat dissipation module therein, and an outer rotor, the heat dissipation module sliding in the corresponding recess to contract to the bottom of the recess; an ejection element arranged in the recess for pushing the heat dissipation module outwards from the recess; two to four temperature sensors integrated in the heat dissipation module; the outer rotor including an annular pressing plate formed at a top thereof to bind and compress a wire harness at the end of a coil winding; an interior cavity inside the stator providing an annular baffle for dividing the cavity into inner and outer parts, and sealing the internal cavity, thereby air only flowing, through the external part near the outer side of the annular baffle.Type: GrantFiled: May 18, 2022Date of Patent: July 9, 2024Inventors: Qicai Wu, Jichang Gan, Min Wu, Huaqiu Huang
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Patent number: 12034350Abstract: The invention relates to an electrical machine, in particular an electric drive unit comprising an electric motor and a magnetic gear. In accordance with one embodiment the electrical machine has the following: a housing, a first shaft arranged in the housing, by means of which first shaft a first permanent magnet assembly and a second permanent magnet assembly are rigidly connected, and a stator arranged internally on the housing, which stator together with the first shaft forms the electric motor. The electrical machine also has a tubular machine element with a plurality of ferromagnetic pole shoes, into which the first shaft is at least partially inserted, such that the first shaft is situated coaxially with the tubular machine element and the second permanent magnet assembly is situated within the tubular machine element. The first shaft is mounted at a first end on the tubular machine element by means of a first bearing inside the tubular machine element.Type: GrantFiled: April 26, 2019Date of Patent: July 9, 2024Assignee: ebm-papst Mulfingen GmbH & Co. KGInventors: Gerald Jungmayr, Günther Weidenholzer, Edmund Marth
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Patent number: 12027954Abstract: The disclosure provides a hollow shaft and a method for manufacturing the same. The hollow shaft includes: an outer periphery component having a cylindrical shape, and the outer edge of the outer periphery component has a polygonal shape; an inner periphery component having a cylindrical shape and is fitted to the inner wall of the outer periphery component; and a bottom component including a bottom plate and a cylindrical body, the extending direction of the bottom plate is perpendicular to the axial direction, the cylindrical body extends from the radially outer circumference of the bottom plate along the axial direction toward the outer periphery component, and the inner wall of the cylindrical body fits the outer wall of the inner periphery component. The outer periphery component, the inner periphery component, and the bottom component are separately defined components. The hollow shaft of the disclosure includes three separate components defined separately.Type: GrantFiled: March 29, 2022Date of Patent: July 2, 2024Assignee: NIDEC CORPORATIONInventors: Hiroshi Sambuichi, Desen Pan, Wenxian Shi
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Patent number: 12027945Abstract: A frame of an electric motor has inlet holes to allow ambient air to flow into an inside of the motor and outlet holes to allow the ambient air entering through the inlet holes to flow out to an outside of the motor. The motor includes a shaft, a rotor, a stator, a fan to rotate integrally with the shaft, and a guide. The guide is disposed outwardly of the fan in the radial direction and has a shape for suppressing foreign materials contained in the ambient air entering through the inlet holes from coming into contact with the stator and the rotor.Type: GrantFiled: June 5, 2019Date of Patent: July 2, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yoshifumi Ajioka, Seiji Haga
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Patent number: 12027933Abstract: A motor includes a rotor, a stator, and a bus bar unit disposed on one side in an axial direction of the stator. The stator includes conductor connection bodies and a segment coil. Each connection body includes first and second ends in the axial direction. The bus bar unit includes a neutral point bus bar connected to the first end and phase bus bars connected to the second end. The neutral point bus bar extends along a circumferential direction. The phase bus bar includes a main body extending along the circumferential direction and at least partially overlapping the neutral point bus bar and a connection portion extending from the main body to one side in the axial direction. The first end passes through one side in the axial direction of the neutral point bus bar and is connected to the connection portion.Type: GrantFiled: March 4, 2022Date of Patent: July 2, 2024Assignee: NIDEC CORPORATIONInventors: Yuki Ishikawa, Hironobu Kumagai
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Patent number: 12021430Abstract: An electric motor includes three busbars in contact at end surfaces thereof and including ring-segment-shaped base portions to provide electrical connection of the busbars. The base portion of a first busbar is in a first plane and the base portion of a second busbar is in a second plane. The base portion of the first busbar extends clockwise from the terminal of the first busbar and the base portion of the second busbar extends counterclockwise from the terminal of the second busbar. Terminals of the first and second busbars are spaced apart with the terminal of the third busbar between the first and third terminals. The third busbar includes a first region extending clockwise from its terminal and lying in the second plane and a second region extending counterclockwise from its terminal and lying in the first plane.Type: GrantFiled: December 9, 2020Date of Patent: June 25, 2024Assignee: NIDEC CORPORATIONInventors: Jürgen Schmid, Thomas Kübler
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Patent number: 12015322Abstract: An electric motor having a frame, a rotor assembly, and a stator assembly. The rotor assembly has a magnet, a bearing assembly, an impeller, and a shaft. The bearing assembly has a first bearing, a second bearing, and a biasing element between the first and second bearings. The first bearing is mounted to the frame by an o-ring, and the second bearing is mounted to the frame by adhesive.Type: GrantFiled: February 19, 2019Date of Patent: June 18, 2024Assignee: Dyson Technology LimitedInventors: Nigel Youatt Dymond, Lin Ji, Kevin Garcia
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Patent number: 12011818Abstract: An electric tool is provided which enables preventing adherence to a rotor core of dust, such as iron powder, that has entered a motor. The electric tool includes a cylindrical motor housing 10 accommodating and supporting the motor, and a cooling fan attached to a rotation shaft of the motor, and cools the motor by flowing air generated by the cooling fan toward the back or front of the motor housing 10, wherein a fan guide 50 guiding cooling air is provided in front of an insulator 35 of a stator 30 of the motor. The fan guide 50 includes a first cylindrical part 51 which covers a rotation space of the cooling fan, a guide surface 53, and a second cylinder 55 which extends backward from the guide surface 53, wherein a labyrinth space 39 is formed by the insulator 35 and the second cylinder 55. By providing the labyrinth space 39, it is possible to block the flow of cooling air from the outer peripheral side of the stator 30 to an opening 53a.Type: GrantFiled: April 12, 2019Date of Patent: June 18, 2024Assignee: Koki Holdings Co., Ltd.Inventors: Ken Miyazawa, Ryo Suzuki
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Patent number: 12004426Abstract: A terahertz detector and a method of manufacturing a terahertz detector, wherein the terahertz detector including a substrate (2) and at least one detection unit. Each detection unit includes: a channel material (1) arranged on the substrate, two electrodes (3, 4) respectively in ohmic contact with both ends of the channel material (1) in a longitudinal direction, and a three-dimensional grapheme (5) in direct or indirect thermal contact with the channel material (1).Type: GrantFiled: October 10, 2019Date of Patent: June 4, 2024Assignees: NUCTECH COMPANY LIMITED, Tsinghua UniversityInventors: Ziran Zhao, Yingxin Wang, Meng Chen, Xuming Ma