Stator Within Armature Patents (Class 417/354)
  • Patent number: 11011953
    Abstract: A motor includes a shaft member in which at least a part of an outer peripheral surface is made of metal, a magnet unit which is configured by integrating a plurality of magnets and in which a press-fit hole into which the shaft member is press-fitted is formed, a substrate which is disposed at a predetermined distance from the magnet unit in an extending direction of the shaft member and to which electric power is supplied, and a protective member in which a through-hole into which the shaft member is inserted is formed and which is disposed between the magnet unit and the substrate in the extending direction of the shaft member. In the motor, the protective member is in contact with at least a part of the outer peripheral surface of the shaft member.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: May 18, 2021
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Naoki Takii
  • Patent number: 11009032
    Abstract: A centrifugal fan includes a motor, an impeller, a circuit board, and a casing. The motor has a stator and a rotatable rotor. The impeller is fixed to and rotates with the rotor. The casing has a lower casing recessed downward and provided with a board housing portion accommodating the circuit board. The impeller includes a boss portion, blade portions, an upper shroud, and a lower shroud. The blade portions are disposed at intervals in the circumferential direction on an outer peripheral surface of the boss portion and extend radially outside. The upper shroud is connected to at least a portion of each of the blade portions on the upper side. The lower shroud is connected to at least a portion of the blade portion on the lower side. At least a portion of the lower end surface of the blade portion faces the upper surface of the circuit board.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: May 18, 2021
    Assignee: NIDEC CORPORATION
    Inventors: Yuya Horii, Tsuyoshi Yasumura
  • Patent number: 11002312
    Abstract: In an aerodynamic bearing, an outer peripheral surface of a shaft and an inner peripheral surface of a sleeve face each other in a radial direction. The sleeve includes a through hole penetrating the sleeve in the radial direction. A space on a radially inner side of the sleeve communicates with an external space of a motor through the through hole. A stationary portion includes a wall portion radially overlapping the through hole with a gap interposed therebetween on a radially outer side of the through hole.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: May 11, 2021
    Assignee: NIDEC CORPORATION
    Inventors: Hiroshi Morishita, Kunio Sakurada, Hirotaka Tamekuni, Takeru Omura
  • Patent number: 10801787
    Abstract: The various technologies presented herein relate to fabrication and operation of a heat exchanger that is configured to extract heat from an underlying substrate. Heat can be extracted by way of an air gap formed between an impeller and a baseplate. By utilizing a pump to create an initial air gap that is further maintained by rotation of the impeller relative to the baseplate, a spring can be utilized that can apply a force of greater magnitude to the impeller than is used in a conventional approach, thus enabling the weight of the impeller to be negligible with respect to a width of the air gap, thereby conferring the desirable feature of orientation independence with respect to gravity with no performance degradation.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: October 13, 2020
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventor: Wayne Lawrence Staats, Jr.
  • Patent number: 10756520
    Abstract: A sleeve unit for a motor of a ceiling fan includes a tubular member and a wire isolation member. The tubular member has a lateral slot extending through the tubular member from an inner periphery to an outer periphery of the tubular member. The lateral slot extends from a first axial end face towards a second axial end face of the tubular member along an axis of the tubular member. The wire isolation member includes an isolation plate unit delimiting a wire channel. The wire channel is located in the lateral slot. The isolation plate unit includes a stopper plate which is located in the lateral slot but does not come into a space delimited by the inner periphery of the tubular member.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: August 25, 2020
    Assignee: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventors: Alex Horng, Tso-Kuo Yin, Kun-Ta Yang
  • Patent number: 10746180
    Abstract: A blower device includes: a fan; a motor rotating the fan; a case supporting the motor; and a heat generating component housed in the case, wherein the case includes: a main body member defining a flow path portion that guides blown air, generated by rotation of the fan, to the heat generating component; and a closing member closing an opening formed on the flow path portion, the main body member includes a fixing portion provided on the flow path portion and fixing the closing member, and the fixing portion is located inside an inner peripheral edge of the opening.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: August 18, 2020
    Assignee: SHINANO KENSHI CO., LTD.
    Inventors: Akihito Fukuzawa, Shigetoshi Tomisawa
  • Patent number: 10738778
    Abstract: A rotor-chamber wall of a motor-driven Roots pump has a suction port and a discharge port. The side on which the discharge port is located with respect to a plane that includes both the rotational axis of a drive shaft and the rotational axis of a driven shaft is a first side. A first partition wall defines a gear chamber and has a first recess on the first side. A second partition wall defines the gear chamber and has a second recess. The first partition wall has a first oil supply passage that is configured to supply oil from the first recess to a first seal accommodating recess. The second partition wall has a second and a third oil supply passages. The second and the third oil supply passages are configured to supply oil from the second recess to a second and a third seal accommodating recesses, respectively.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: August 11, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takayuki Hirano, Daisuke Masaki, Shintaro Kashiwa, Naoki Takani
  • Patent number: 10738788
    Abstract: A blower is provided that may include a first suction inlet having a first suction opening formed therein; a second suction inlet having a second suction opening formed therein; at least one fan provided between the first suction inlet and the second suction inlet, to generate a flow of air; a discharge ring provided at an outer side of the at least one fan to discharge air to an outside of the blower; a filter provided at any one of the first suction inlet or the second suction inlet, to filter suctioned air; and a heater provided at the other of the first suction inlet or the second suction inlet, to heat suctioned air.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: August 11, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Heechul Park, Myungjin Ku
  • Patent number: 10704557
    Abstract: The present invention relates to a suction device for a hood, comprising an impeller, an electric motor that drives said impeller, a volute that houses inside the electric motor and the impeller, a capacitor, and a connector electrically connected to the capacitor for supplying power to the electric motor; the volute comprises a first semi-shell and a second semi-shell joined with each other so as to constitute the structure of the volute surrounding the impeller; the capacitor is housed in a first compartment formed in the first semi-shell, and the connector is housed in a second compartment formed in the second semi-shell; the first compartment and the second compartment are adjacent to each other in the volute. The present invention further relates to an associated range hood.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: July 7, 2020
    Assignee: Whirlpool Corporation
    Inventor: Mauro Santucci
  • Patent number: 10512380
    Abstract: A motor assembly includes an impeller inside a motor assembly housing, a motor including a rotor including a rotor shaft rotatable with the impeller and a pair of stators disposed facing each other across the rotor while electromagnetically interacting with the rotor to rotate the rotor shaft, and a motor housing inside the motor assembly housing that fixes the pair of stators relative to the rotor.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: December 24, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Jong Jin Park, Myung Bae Bang, Byung Ryel In, Deok Jin Kim
  • Patent number: 10422590
    Abstract: The various technologies presented herein relate to fabrication and operation of a heat exchanger that is configured to extract heat from an underlying substrate. Heat can be extracted by way of an air gap formed between an impeller and a baseplate. By utilizing a pump to create an initial air gap that is further maintained by rotation of the impeller relative to the baseplate, a spring can be utilized that can apply a force of greater magnitude to the impeller than is used in a conventional approach, thus enabling the weight of the impeller to be negligible with respect to a width of the air gap, thereby conferring the desirable feature of orientation independence with respect to gravity with no performance degradation.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: September 24, 2019
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventor: Wayne Lawrence Staats, Jr.
  • Patent number: 10415586
    Abstract: An axial fan includes a rotor portion, a stator portion arranged radially opposite to the rotor portion, and an impeller hub fixed to the rotor portion, and arranged to be capable of rotating integrally with the rotor portion. The impeller hub includes a hub top plate portion; a hub tubular portion being tubular, and arranged to extend axially downward from an outer edge of the hub top plate portion; a plurality of blades arranged in a circumferential direction; a plurality of wall portions arranged in the circumferential direction radially inside of the hub tubular portion; and a joining portion arranged to join a corresponding one of the wall portions to the hub tubular portion. A radially outer surface of the rotor tubular portion is arranged to be in contact with an inner surface of at least one of the wall portions.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: September 17, 2019
    Assignee: NIDEC CORPORATION
    Inventors: Kazuhiro Inouchi, Tatsuya Tatara, Junya Matsuyama
  • Patent number: 10393150
    Abstract: Provided are a blower, capable of suppressing noise occurring in a stator while significantly improving blowing efficiency, and an outdoor unit using the same. The present invention comprises: a bell mouth part spaced apart at a predetermined distance in the radial direction with respect to an outer circumferential end of a propeller fan; and a diffuser part installed on the downstream side of the bell mouth part, and having a flow path area which is enlarged from the upstream side toward the downstream side with a larger magnification rate than the magnification rate of the flow path area in the downstream end of the bell mouth part; and a stator part having a plurality of stators, wherein the stator part is arranged within the diffuser part.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: August 27, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Suguru Nakagawa, Seiji Sato
  • Patent number: 10288084
    Abstract: A blower configured to be positioned in confined spaces and to provide ventilation of a fluid, such as temperature controlled air, is disclosed. In various embodiments, the blower is configured to have a reduced axial thickness, which can be desired in such confined spaces. In some embodiments, the blower has an integral filter, a wire channel for the routing of one or more wires, and/or an exposed backplate. In some embodiments, the blower has a snap-fit circuit board, containment system for mounting the motor, one or more vanes for directing fluid flow, shrouded impeller, and/or integrated connector.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: May 14, 2019
    Assignee: GENTHERM INCORPORATED
    Inventors: John D. Lofy, Ryan Walsh
  • Patent number: 10021775
    Abstract: A circuit board and fan frame connection structure includes a fan frame, a circuit board and an adhesive member having multiple through holes. The fan frame includes a bottom board, a bearing cup disposed at the center of the bottom board and multiple perforations formed through the bottom board. The bottom board has an upper surface and a lower surface. The circuit board is adhered to the lower surface of the bottom board via the adhesive member. The electronic components arranged on the circuit board pass through the aligned through holes and perforations.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: July 10, 2018
    Assignee: Asia Vital Components Co., Ltd.
    Inventor: Meng Shen
  • Patent number: 9746001
    Abstract: Some embodiments of an apparatus and system are described for a volumetric resistance blower. An apparatus may comprise a motor, a rotor comprising a cylindrical foam block, and a casing having one or more inlets arranged in an axial direction of the rotor and one or more outlets arranged in a radial direction of the rotor. Other embodiments are described.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: August 29, 2017
    Assignee: INTEL CORPORATION
    Inventor: Mark MacDonald
  • Patent number: 9709063
    Abstract: A fan structure with a wear resistant film coated shaft liner includes a stator, a fan blade and a fan shield. The stator includes an axle center at a center portion thereof. The fan blade comprises a blade wheel, a shaft liner arranged at a center of the blade wheel and extended axially therefrom, a plurality of blades arranged to circumference the blade wheel externally and a magnetic unit arranged on the blade wheel. The fan shield covers the fan blade externally and includes a fixation portion for securing the axle center. The shaft liner of the fan blade includes an axial hole in order to allow the axle center of the stator to pivotally attach thereto. The axial hole is of a blind hole shape, and an inner wall surface of the axial hole is coated with a wear resistant film in contact with the axle center.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: July 18, 2017
    Assignee: COOLER MASTER CO., LTD.
    Inventors: Shui-fa Tsai, Shih-wei Huang
  • Patent number: 9353758
    Abstract: The invention relates to a fan module, in particular for air conditioners in vehicles, comprising an electric motor and a fan rotor, wherein the electric motor and the fan rotor are arranged on a rotor shaft and are connected to each other by a drive connection, and wherein the electric motor is designed to drive the fan rotor via a drive connection, wherein the drive connection has a positive connection to a driver and a mating driver piece, wherein the driver on the electric motor and the mating driver piece on the fan rotor are arranged spaced apart radially with respect to the rotor shaft, wherein the driver is formed and designed in the direction of rotation of the fan rotor to actuate the mating driver piece in order to transmit a force from the electric motor to the fan rotor.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: May 31, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Andreas Schiel, Matthias Ludwig
  • Patent number: 9322645
    Abstract: A rotary angle sensor used to determine a relative angular position as compared to a reference position, comprising a housing (1), at least one rotor (3, 4) that is rotatably mounted inside said housing (1), one circuit board (2) containing electrical and/or electronic components as well as one or multiple stators corresponding to the number of used rotors (3, 4). The rotary angle sensor is supposed to be improved in such a manner that allows for an especially precise alignment of a circuit board inside a housing and an easy installation of said board. This is achieved by the circumstance that bearing surfaces (9) for the circuit board (2) are provided in the direct radial vicinity of the stator inside the housing (1) and that clamping structures (11) are radially aligned with the stator in order to position the circuit board (2).
    Type: Grant
    Filed: June 29, 2013
    Date of Patent: April 26, 2016
    Assignee: HELLA KGAA HUECK & CO.
    Inventors: Thomas Elpermann, Stefan Peters
  • Patent number: 9206813
    Abstract: A centrifugal fan comprises an impeller and a casing. The impeller includes a hub and a plurality of blades. The casing comprises an upper casing, a lower casing, at least one protrusion, a first inlet opening and a second inlet opening. The lower casing is disposed opposite to the upper casing and connected to the upper casing to form an accommodation room for receiving the impeller. The protrusion is formed on the upper casing and/or the lower casing inside the casing and immediately surrounds the blades. The first inlet opening is defined on the upper casing and comprises a primary inlet opening augmented by a secondary inlet opening. The second inlet opening is defined on the lower casing. The protrusion surrounds the first inlet opening and/or second inlet opening.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: December 8, 2015
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Hsin-Chen Lin, Hsiang-Jung Huang
  • Patent number: 9131814
    Abstract: The impeller of an electric blower includes a front shroud, a rear shroud, sheet-metal blades, a hub part, and an inducer having a plurality of blade parts. The inducer is configured to be divided into two parts: a first inducer composed of a first hub part and first blade parts; and a second inducer composed of a second hub part and second blade parts. The first inducer is disposed such that outer-peripheral blade-tips of the first blade parts are disposed in the proximity of the front shroud, and that the upper surface of the first hub part is proximally covered by the lower surface of a fastener.
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: September 15, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kazushige Nakamura, Hiroyuki Kayama, Kazuhisa Morishita, Teppei Hidekuma, Tsuyoshi Nishimura
  • Patent number: 9121444
    Abstract: A bearing cup structure and a thermal module thereof. The bearing cup structure includes a cup body, a base seat, an assembling member and a retainer ring. The cup body has a receiving space and a fixing section formed at one end of the cup body. The base seat is received in the receiving space. The base seat has a first shoulder section, a second shoulder section and a receiving section. The assembling member is disposed in the receiving section and passes through the receiving section. The retainer ring is attached to the first shoulder section. With the bearing cup structure, the heat dissipation performance of the thermal module is greatly promoted and the assembling time is shortened to lower the manufacturing cost.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: September 1, 2015
    Assignee: Asia Vital Components (China) Co., Ltd.
    Inventor: Meihua Yuan
  • Patent number: 9074603
    Abstract: A cooling fan includes a fan frame, a circuit board, a stator-coil unit and an impeller. The fan frame includes a metal seat and a lateral wall. The metal seat includes an engaging face and an engaging portion arranged on the engaging face. The lateral wall is arranged on a periphery of the metal seat and includes an air inlet and an air outlet. The circuit board includes a positioning hole. The circuit board is press fit around the engaging portion of the metal seat via the positioning hole and adhered to the engaging face of the metal seat. The circuit board includes an insulation layer facing the metal seat. The stator-coil unit is mounted on the metal seat of the fan frame and electrically connected to the circuit board. The impeller is rotatably coupled with the stator-coil unit.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: July 7, 2015
    Assignee: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventor: Ching-Lin Wu
  • Patent number: 9045037
    Abstract: A ventilation assembly has a support structure, an electric motor and a fan connected to the motor. The fan has a cup-like hub with an annular side wall and a bottom wall and which define internally a housing in which the motor extends. The hub further has a plurality of internal vanes for the ventilation of the motor, that extend from the side wall of the hub. The support structure has at least one arcuate formation which is coaxial with the axis of the fan and which extends axially inside the hub of the fan, in a partially interpenetrated relationship with the side wall of the hub to form a labyrinth-like radial path between external and internal regions with respect to the hub.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: June 2, 2015
    Assignee: GATE S.R.L.
    Inventors: Fabrizio Ferretti, Alessandro Pivato
  • Patent number: 9033680
    Abstract: An electric fan is provided, including a labyrinth structure with increased performance of preventing entry of a liquid into a receiving space to receive a stator and a rotor. A clearance is defined between an opposed wall portion of a base and an opposed wall portion of an impeller body, which are opposed to each other in an axial direction of a rotary shaft, to form a labyrinth structure. The opposed wall portion of the base and the opposed wall portions of the impeller body are shaped to form a volume expanding portion within the clearance. The volume expanding portion is constituted from a groove portion for expanding the clearance, having a volume larger than other portions within the clearance.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: May 19, 2015
    Assignee: SANYO DENKI CO., LTD.
    Inventors: Naruhiko Kudo, Tomoaki Ikeda, Haruhisa Maruyama
  • Publication number: 20150110649
    Abstract: A cooling apparatus includes an impeller, a motor, a base portion, and a motor circuit board. The impeller includes a plurality of blades and a blade support portion. Of the plurality of blades, at least one pair of circumferentially adjacent blades are arranged to have a channel defined therebetween, the channel extending from axially upper edges to axially lower edges of the blades, and being arranged to be open toward the upper surface of the base portion. The base portion includes a heat source contact portion with which a heat source is to be in contact. At least one of the blades includes a blade edge opposed portion having an axially lower edge arranged opposite to the upper surface of the base portion. An outermost edge portion of the motor circuit board is arranged radially inward of a radially inner end portion of the blade edge opposed portion.
    Type: Application
    Filed: September 11, 2014
    Publication date: April 23, 2015
    Applicant: NIDEC CORPORATION
    Inventors: Takehito Tamaoka, Kazuhiko Fukushima
  • Publication number: 20150110648
    Abstract: A thin type fan includes an impeller and a motor. The impeller includes a hub and a blade structure disposed around the hub. The motor includes a stator structure, a magnetic assembly, a bearing structure and a rotational shaft. The motor drives the impeller to rotate. The magnetic assembly is disposed within the hub and around the stator structure. The magnetic assembly includes a magnet and a magnetically permeable shell. The bearing structure includes a bearing seat and a single ball bearing. The single ball bearing is disposed in the bearing seat and forms an accommodating space, and the rotational shaft is disposed in the accommodating space.
    Type: Application
    Filed: May 20, 2014
    Publication date: April 23, 2015
    Applicant: Delta Electronics, Inc.
    Inventors: Chao-Wen LU, Chun-Chih WANG
  • Patent number: 9006944
    Abstract: A motor includes a base, a rotor and a stator. The base includes a shaft tube having an open end and a closed end. A shaft supporting assembly is received in the shaft tube and includes a top portion. The rotor includes a shaft rotatable about a longitudinal axis, and the shaft includes a retaining groove. The stator includes a limiting member having a distal end. The limiting member defines an opening through which the shaft extends. The limiting member further includes a bottom facing the shaft supporting assembly. A gap and a supporting member are formed between the bottom and the top portion. The supporting member is closer to the shaft tube than to the shaft, and the gap is closer to the shaft than to the shaft tube.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: April 14, 2015
    Assignee: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventor: Alex Horng
  • Patent number: 9004880
    Abstract: A fan motor set locating structure includes a base seat and a motor set. The base seat has a bearing cup. At least one locating notch is formed on a top section of the bearing cup. A bearing is disposed in the bearing cup. The motor set includes an insulation support. One side of the insulation support is formed with a sleeve. The sleeve is capped on the bearing cup. The sleeve has at least one protrusion section protruding from the sleeve to the bearing cup corresponding to the locating notch. The protrusion section is engaged in the locating notch in abutment with the bearing. Accordingly, the motor set can be quickly fixedly assembled with the bearing cup to fix the bearing. Therefore, the number of the components is decreased and the assembling process is speeded.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: April 14, 2015
    Assignee: Asia Vital Components Co., Ltd.
    Inventors: Yen-Chin Lu, Chun-Hao Huang, Chun-Liang Ho
  • Publication number: 20150098844
    Abstract: A fan module used in an electronic apparatus is provided. The electronic apparatus includes an upper cover and a lower cover. The fan module includes a fan housing, a fixing shaft, a bearing, and a fan body. The fan housing is mounted on the lower cover. The fixing shaft includes a first end and a second end. The first end is mounted on the fan housing. The second end passes out of the fan housing. The bearing includes a first ring and a second ring. The first ring is pivotally connected to the second ring. The first ring is disposed around the outer edge of the fixing shaft. The fan body is disposed around the outer edge of the second ring, so as to rotate relative to the fixing shaft.
    Type: Application
    Filed: May 11, 2014
    Publication date: April 9, 2015
    Applicant: COMPAL ELECTRONICS, INC.
    Inventors: I-Feng HSU, Chang-Yuan WU, Chih-Chin CHIEN
  • Patent number: 8979512
    Abstract: An oil-retaining bearing fan device includes a fan base seat, at least one oil-retaining bearing and at least one magnetic member. The oil-retaining bearing is disposed in a bearing hole of the fan base seat. The oil-retaining bearing has at least one receiving hole for receiving the magnetic member therein. The magnetic member serves to apply a magnetic attraction force to a shaft of the fan device to make the shaft quickly restore to its optimal operation position so as to reduce wear and lower the noises and vibration of the fan device in operation. Therefore, the lifetime of the fan device can be prolonged.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: March 17, 2015
    Assignee: Asia Vital Components (Chengdu) Co., Ltd.
    Inventors: Bor-Haw Chang, Shu-Fen Liu
  • Patent number: 8974196
    Abstract: A bearing bracket including a metal base and a bushing is provided. The metal base has an opening at its central portion. The bushing of the bearing bracket is made of plastic. The bushing encloses an axial portion or/and a radial portion of the metal base by injection molding. Furthermore, the bearing bracket further includes an anti-vibration member disposed on at least one side surface of the metal base.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: March 10, 2015
    Assignee: Delta Electronics, Inc.
    Inventors: Yen-Hung Chen, Kuo-Tung Hsu
  • Publication number: 20150064029
    Abstract: An axial flow fan motor 100 comprises: a casing outer frame 61; an impeller 10; a rotor shaft 20 as a rotation axis at a center of the impeller 10; a bearing housing 30 in an inside of a rotor housing 11; and a base portion hub 62 in an air blowout opening side 2, wherein, in a cross-sectional view along the rotation axis, the base portion hub 62 has an outer peripheral portion 65 at least partially inclined to the rotation axis side by an angle ?1 toward the air blowout opening side 2 with regard to a straight line parallel to the rotation axis, and the casing outer frame 61 has an inner peripheral portion 67 at least partially inclined to the rotation axis side by an angle ?2 toward the air blowout opening side 2 with regard to a straight line parallel to the rotation axis.
    Type: Application
    Filed: August 7, 2014
    Publication date: March 5, 2015
    Inventors: Yukihiro HIGUCHI, Atsushi TARODA
  • FAN
    Publication number: 20150043159
    Abstract: A blower fan according to a preferred embodiment of the present invention is a centrifugal fan. At least a portion of each of a plurality of blades of an impeller portion is arranged above a stator. A lower plate portion is arranged to define an air channel portion and an air outlet arranged on a lateral side of the impeller portion when a side wall portion arranged to surround an outer circumference of the impeller portion and an upper plate portion arranged above the impeller portion are present. The air channel portion is arranged to extend in a circumferential direction between an outer circumference of the stator and the side wall portion. At least a portion of a circuit board is arranged in the air channel portion and on the lower plate portion. A plurality of lead wires extending from the stator are connected to the circuit board in the air channel portion.
    Type: Application
    Filed: March 13, 2014
    Publication date: February 12, 2015
    Applicant: NIDEC CORPORATION
    Inventors: Takehito Tamaoka, Hiroaki Hirano
  • FAN
    Publication number: 20150044076
    Abstract: A fan includes a motor, an impeller and a heat-dissipating structure. The motor includes a stator magnet assembly, a frame, a first circuit board, and a cover. The frame supports the stator magnet assembly. The frame and the stator magnet assembly define a first accommodating space, and the first circuit board is disposed in the first accommodating space. The cover covers the first circuit board. The motor drives the impeller and the impeller includes a hub and a plurality of first blades. The hub has at least a heat-dissipating hole. The first blades are disposed around the hub, and the heat-dissipating structure is disposed at the outer side of the hub. The heat-dissipating structure has a baffle and at least a second blade extended from the baffle and located corresponding to the heat-dissipating hole.
    Type: Application
    Filed: July 9, 2014
    Publication date: February 12, 2015
    Inventors: Shih-Han HUANG, Shun-Chen CHANG
  • Publication number: 20150043158
    Abstract: A blower fan according to a preferred embodiment of the present invention is a centrifugal fan including a stationary portion, a bearing mechanism, and a rotating portion. The stationary portion includes a lower plate portion and a stator. The stator includes a plurality of teeth each of which has a radially inner end including an upward projecting portion arranged to extend axially upward.
    Type: Application
    Filed: March 13, 2014
    Publication date: February 12, 2015
    Applicant: NIDEC CORPORATION
    Inventors: Hiroaki Hirano, Takehito Tamaoka
  • Publication number: 20150030474
    Abstract: An axial flow fan of the present invention includes: an impeller having a hub and vanes disposed at equal intervals on an outer peripheral portion of the hub; a rotor shaft located at the center of the impeller; a motor portion rotating the impeller around the rotor shaft as an axis; a casing surrounding an outer periphery of the impeller; a base portion supporting the motor portion; and a stationary blade located in a blowout opening side of air flow, the stationary blade connecting the base portion and the casing, wherein the stationary blade has on its surface a guide portion allowing air flow flowing along the surface to be rectified and guided from a direction of the blowout opening to an outside.
    Type: Application
    Filed: May 23, 2014
    Publication date: January 29, 2015
    Applicant: MINEBEA CO., LTD.
    Inventors: Atsushi TARODA, Yukihiro HIGUCHI, Tomoyoshi SASAJIMA
  • Publication number: 20150023814
    Abstract: A stationary portion of a blower fan according to a preferred embodiment of the present invention includes a stator and a stator holding portion to which the stator is fixed. A rotating portion of the blower fan includes an annular rotor hub portion arranged around a central axis; a rotor magnet arranged along a circumferential surface of the rotor hub portion, and arranged radially inside a stator; and an impeller including a plurality of blades arranged along a circumferential direction of the rotor hub portion. An upper end of the stator is arranged at a level lower than that of an upper end of the rotor magnet. The impeller is arranged axially above the rotor magnet and is arranged to extend radially outward. The blades are arranged axially above the stator.
    Type: Application
    Filed: March 13, 2014
    Publication date: January 22, 2015
    Applicant: NIDEC CORPORATION
    Inventors: Takehito Tamaoka, Hiroaki Hirano
  • Publication number: 20150004016
    Abstract: A fan including: a fan frame, a casing, fan blades, a magnetic piece, silicon steel sheets, a coil, a circuit board, a nano-bearing, and a rotational shaft of a motor. The fan frame is disposed at a bottom of the fan. The casing is disposed above the fan frame. The fan blades encircle the casing and are staggered with respect to one another. The magnetic piece is in a ring shape and is attached to an inner wall of the casing. The silicon steel sheets are stacked together, and disposed in a circle inside the magnetic piece. The coil is wound on the silicon steel sheets. The nano-bearing is disposed in a center of the silicon steel sheets. The rotational shaft of the motor is disposed inside the nano-bearing. The circuit board is connected to the coil wound on the silicon steel sheets.
    Type: Application
    Filed: September 15, 2014
    Publication date: January 1, 2015
    Inventor: Xianqi XIA
  • Patent number: 8915721
    Abstract: A mini-fan has a drive motor having an external rotor (222) and an internal stator (244). The external rotor (222) is equipped with a rotor shaft (234) that has a necked down portion (258) in the region of its free end (235). The mini-fan (216) has a bearing tube (238) on whose outer side the internal stator (244) is mounted and in whose interior is arranged a bearing arrangement (236) in which the rotor shaft (234) is rotatably supported. A closure arrangement (262) serves to close off the bearing tube (238) in liquid-tight fashion at one end, and is equipped, in the region of the necked down portion (258) of the rotor shaft (234), with at least one resilient securing member (260) that engages into that necked down portion (258) and secures the rotor shaft (234) against being pulled out of the bearing arrangement (236).
    Type: Grant
    Filed: May 11, 2004
    Date of Patent: December 23, 2014
    Assignee: EBM-Papst St. Georgen GmbH & Co. KG
    Inventors: Wolfgang Arno Winkler, Nils Rapp
  • Patent number: 8899946
    Abstract: A fan includes a motor including a rotating portion and a stationary portion; an impeller including a plurality of blades and a blade support portion to which the blades are fixed, and arranged to cover the motor; and a housing including a lower plate portion arranged on a lower side of the blades, a side wall portion arranged to cover sides of the blades, and an upper plate portion arranged on an upper side of the blades and including an air inlet arranged to extend through the upper plate portion in an axial direction. A lower surface of the blade support portion includes a balance correction portion arranged to extend in a circumferential direction. The lower plate portion includes a through hole arranged to overlap with the balance correction portion in the axial direction to make a portion of the balance correction portion viewable from below the lower plate portion.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: December 2, 2014
    Assignee: Nidec Corporation
    Inventors: Hiroyoshi Teshima, Kiyoto Ida
  • Publication number: 20140341760
    Abstract: A fan structure with externally connected circuit includes a frame body, a stator, a fan impeller and a circuit board. The stator and the fan impeller are disposed in the frame body. The circuit board is disposed on an outer face of the frame body in contact with ambient air. Therefore, the room for the circuit board is increased without increasing the thickness of the frame body. Moreover, the heat dissipation effect of the circuit board is enhanced.
    Type: Application
    Filed: May 14, 2013
    Publication date: November 20, 2014
    Inventor: Chu-Hsien Chou
  • Publication number: 20140294620
    Abstract: A cooling fan having a radial-air-gap motor is disclosed. The cooling fan includes a fan frame, an impeller and a stator assembly. The fan frame has a shaft-coupling portion. The impeller has a hub, a shaft and a plurality of blades. The blades are arranged on an outer periphery of the hub. At least one magnetic element is arranged on an inner periphery of the hub. There is a height between a bottom face of the shaft-coupling portion and a top face of the hub. There is a maximum thickness between the bottommost and uppermost faces of the magnetic plate unit. A ratio of the maximum thickness to the height is between 0.1 and 0.6. A method for determining the dimensional proportion of the motor is also disclosed. The method selects a ratio of a maximum thickness to a height as 0.1 to 0.6.
    Type: Application
    Filed: February 7, 2014
    Publication date: October 2, 2014
    Applicant: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventors: Alex Horng, Ming-Tsung Li, Shih-Hang Lin
  • Publication number: 20140294621
    Abstract: A fan includes: a casing including a substantially cup-shaped base portion connected to an outer frame through a rib, the base portion having a top surface located on a upper side of an axial direction and a lower opening located on a lower side of the axial direction; a bearing housing hanging down from a center of the top surface of the base portion toward the lower opening; a stator housing portion formed by the base portion and the bearing housing; a stator having a circuit board disposed in the stator housing portion by being fitted to an outer peripheral surface of the bearing housing; bearings fitted to an inner peripheral surface of the bearing housing; an impeller rotating around a shaft as a central axis, shaft being rotatably supported by the bearings; and an insulating material filling the stator housing portion to cover the stator and the circuit board.
    Type: Application
    Filed: March 27, 2014
    Publication date: October 2, 2014
    Inventor: Toru NARITA
  • Patent number: 8833334
    Abstract: An oil pump apparatus in which an electrical pump can be easily disposed is provided. A mechanical pump including: an inner gear which is configured to be driven by an engine; and an outer gear which is configured to mesh with the inner gear, and an electrical pump including: an outer gear which is configured to be driven by a motor section; and an inner gear which is configured to mesh with the outer gear are installed adjacent to each other in the axial direction in a pump installation space of a pump housing having suction ports and ejection ports. A blocking plate which is configured to block communications between the suction ports and the ejection ports is disposed between the mechanical pump and the electrical pump.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: September 16, 2014
    Assignee: JTEKT Corporation
    Inventors: Kentaro Watanabe, Motoyasu Yamamori, Ryouichi Takahata, Kazuya Ando, Naomasa Mukaide
  • Publication number: 20140248165
    Abstract: A fan includes a fan frame, a rotor, a stator module and a protection structure. The fan frame has a base seat and the stator module is disposed on the base seat. The stator module includes a silicon steel sheet assembly having multiple splits and multiple outer faces. The rotor is disposed in the fan frame corresponding to the outer faces of the silicon steel sheet assembly. The protection structure includes multiple posts corresponding to the splits of the silicon steel sheet assembly. The posts are welded with the splits by means of laser welding.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 4, 2014
    Inventors: Bor-Haw Chang, Shu-Fan Liu, Kuo-Chen Chang
  • Publication number: 20140248164
    Abstract: A fan includes a fan frame, a rotor, a stator module and a protection structure. The fan frame has a base seat and the stator module is disposed on the base seat. The stator module includes a silicon steel sheet assembly having multiple splits and multiple outer faces. The rotor is disposed in the fan frame corresponding to the outer faces of the silicon steel sheet assembly. The protection structure includes multiple posts corresponding to the splits of the silicon steel sheet assembly. The posts are welded with the splits by means of laser welding.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 4, 2014
    Inventors: Bor-Haw Chang, Shu-Fan Liu, Kuo-Chen Chang
  • Publication number: 20140219834
    Abstract: A lower plate includes a lower air inlet arranged radially outward of a bearing portion. In a plan view, a plane is divided into four regions by a first straight line which is parallel to an air outlet and crosses a central axis and a second straight line which is perpendicular to the air outlet and crosses the central axis, and one of the four regions in which a tongue portion is arranged is a first region, followed by a second region, a third region, and a fourth region in this order in a rotation direction of the blades. The air outlet is arranged to extend over both the first and fourth regions.
    Type: Application
    Filed: July 16, 2013
    Publication date: August 7, 2014
    Inventors: Takehito Tamaoka, Kazuhiko Fukushima, Kyoko Horise, Shinya Ishigami, Takahiro Nagai
  • Publication number: 20140212303
    Abstract: In a blower fan according to a preferred embodiment of the present invention, a stationary portion of a motor portion includes a stator, a bearing portion, and a holding portion to which both the stator and the bearing portion are fixed, while a rotating portion includes a central rotating portion, and an annular cup portion fixed to the central rotating portion. The central rotating portion includes a shaft, a bearing opposing portion, and a cylindrical seal portion. The cup portion includes a cylindrical cup inner wall portion fixed to an outer circumferential surface of the cylindrical seal portion, a cup top plate portion, and a cup outer wall portion. A seal portion having a surface of a lubricating oil defined therein is defined in a seal gap between an inner circumferential surface of the cylindrical seal portion and an outer circumferential surface of the bearing portion.
    Type: Application
    Filed: July 16, 2013
    Publication date: July 31, 2014
    Inventors: Takehito Tamaoka, Kazuhiko Fukushima
  • Publication number: 20140205476
    Abstract: An electric fan is provided, including a labyrinth structure with increased performance of preventing entry of a liquid into a receiving space to receive a stator and a rotor. A clearance is defined between an opposed wall portion of a base and an opposed wall portion of an impeller body, which are opposed to each other in an axial direction of a rotary shaft, to form a labyrinth structure. The opposed wall portion of the base and the opposed wall portions of the impeller body are shaped to form a volume expanding portion within the clearance. The volume expanding portion is constituted from a groove portion for expanding the clearance, having a volume larger than other portions within the clearance.
    Type: Application
    Filed: March 21, 2014
    Publication date: July 24, 2014
    Applicant: SANYO DENKI CO., LTD.
    Inventors: Naruhiko Kudo, Tomoaki Ikeda, Haruhisa Maruyama