Housings, Windows Or Covers Patents (Class 310/89)
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Patent number: 8803390Abstract: Engaging protrusions of a lower end housing are axially snap-fitted into through holes, respectively, of a yoke housing to couple therebetween. Each of spacers is circumferentially placed between and is press-fitted between corresponding adjacent two of permanent magnets fixed to an inner peripheral surface of the yoke housing. Each spacer axially contacts a corresponding contact part of the end housing. A lower ball bearing and an upper ball bearing are supported by the lower end housing and an upper end housing, respectively, to rotatably support a shaft. A wave washer is axially positioned between the lower ball bearing and the lower end housing to exert an urging force between the lower end housing and the upper end housing through the shaft.Type: GrantFiled: September 6, 2013Date of Patent: August 12, 2014Assignee: Asmo Co., Ltd.Inventors: Masakatsu Uchida, Yoshimichi Sahara
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Publication number: 20140217845Abstract: The present invention relates to a device to prevent foreign objects from entering screw holes of a brushless motor of a ceiling fan. The device includes a cover to prevent foreign objects and a motor cover. The cover is adapted to cover screw holes of the motor cover. The cover has a hollow cover body which has an accommodation space corresponding in position to the screw holes of the motor cover. The ends of screws are in the accommodation space of the hollow cover body of the cover so that the iron fillings of the screws and foreign objects will fall in the accommodation space. The present invention can prevent the iron fillings of the screws and foreign objects from entering the motor to cause noises so as to enhance the reliability of the product and prolong the service life the product.Type: ApplicationFiled: February 25, 2013Publication date: August 7, 2014Applicant: RHINE ELECTRONIC CO., LTD.Inventor: YI KAI CHANG
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Patent number: 8796896Abstract: An electric motor, especially a brushless PMDC motor, has a stator and a rotor rotatably installed inside of the stator. The stator has a housing with an open end, an end cap fixed to the open end of the housing, a stator core fixed to an inner surface of the housing, and windings wound on the stator core. The rotor includes a plurality of permanent magnetic poles. The housing has a flange bent inwardly from the open end of the housing and abutting against the end cap inwardly and axially to thereby fix the end cap to the housing. The length of the flange measured along the circumferential direction of the housing is greater than half of that of the housing.Type: GrantFiled: October 21, 2011Date of Patent: August 5, 2014Assignee: Johnson Electric S.A.Inventors: James Ching Sik Lau, Mao Xiong Jiang, Gang Li, Ke Lin Zhou, Hong Min Wei, Jie Chai, Tao Zhang
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Patent number: 8796891Abstract: A brushless DC motor is provided and includes: a stator assembly; a rotor assembly including a sleeve; a case assembly; and a circuit board assembly which has an electronic component mounted thereon. The case assembly is provided with an opening, the electronic component passes through the opening so as to protrude inside the case assembly, and a groove is formed at an axial end of the sleeve of the rotor assembly in order to prevent the electronic component from making contact with any part of the rotor assembly. Thus, the axial dimension of the brushless DC motor that includes the electronic component disposed to protrude inside the case assembly can be successfully reduced in such a manner that the electronic component is accommodated within the groove. Further, no electronic component is disposed around the outer circumference of the stator assembly and therefore the radial dimension also can be kept small.Type: GrantFiled: March 25, 2011Date of Patent: August 5, 2014Assignee: Minebea Co., Ltd.Inventors: Manabu Nakamura, Yuzuru Suzuki
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Publication number: 20140210289Abstract: Apparatus and methods for providing a pre-determined axial thrust force profile for use in a rotating machine that includes a magnetically permeable rotor with first and second surfaces and a generally perpendicular shaft is disclosed. One or more bearings support the shaft and a coil induces flux in the rotor. First and second pole pieces disposed adjacent to the first and second surfaces define first and second gaps. A series magnetic circuit including the pole pieces, the gaps and the rotor carries flux generated by current flowing in the coil. Pole pieces and gaps provide substantially similar reluctance in both gaps. Magnetic saturation characteristics of a series magnetic circuit may provide a pre-determined axial force profile as a function of coil current. A first magnetic saturation characteristic may provide a maximum axial force at a first current magnitude. A second magnetic saturation characteristic may provide a lower axial force at a current greater than the first current.Type: ApplicationFiled: October 8, 2013Publication date: July 31, 2014Inventors: JAMES T. ANDREWS, KARL THOMAS SCHUETZE
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Patent number: 8791609Abstract: The present invention relates to an electrical device including a stator and a rotor, wherein the electrical device is preferably a generator, a motor or similar, in particular a centrifuge motor, wherein the rotor, in particular a motor shaft is rotatably supported through at least one bearing relative to the stator, wherein at least one damping device is provided between the stator and the rotor, wherein the damping device includes at least one damping element. Thus, the device provides a high level of integrated vibration damping and internal damping of the device can be adapted to particular properties and applications.Type: GrantFiled: November 1, 2012Date of Patent: July 29, 2014Assignee: Eppendorf AGInventors: Heinz-Gernhard Koehn, Peter Zehnel
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Patent number: 8786159Abstract: A fixing structure for a stator core includes a stator core, a ring member fitting on the stator core, and a case covering the stator core and the ring member. The case includes a fixing portion fixing the ring member, and a fitting portion fitting on the ring member.Type: GrantFiled: December 28, 2009Date of Patent: July 22, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventor: Hiroyuki Hattori
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Patent number: 8779639Abstract: A drive apparatus for a hybrid vehicle, includes an input shaft configured to be rotatably connected to an engine, a motor including a rotor and a stator held inside a stator holder, an output shaft arranged coaxially with a rotation axis of the rotor and connected integrally with the rotor, a clutch device selectively engaging the input shaft with the output shaft, and a case supporting the input shaft and the output shaft, accommodating the motor and the clutch device, and including an oil sump for pooling oil, wherein at least one recessed portion is provided on a peripheral wall portion of the case, at a position where the peripheral wall portion is located lower than a level of the oil pooled in the oil sump and where the peripheral wall portion faces the stator holder.Type: GrantFiled: September 8, 2011Date of Patent: July 15, 2014Assignee: Aisin Seiki Kabushiki KaishaInventors: Shigetaka Isogai, Kazumi Ogawa
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Publication number: 20140191603Abstract: Provided is a BLDC motor for a hair dryer, which includes a sintered bearing to guide rotation of a shaft, instead of using a typical ball bearing. Thus, a rotation shaft is held by fluid dynamic pressure generated by rotation of the BLDC motor, thereby decreasing vibration and noise.Type: ApplicationFiled: July 3, 2012Publication date: July 10, 2014Applicant: JMW CO., LTD.Inventor: Tae Hyun Lim
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Patent number: 8772988Abstract: An electric machine includes a stator stack of laminations, pierced with a cylindrical passage for housing a rotatable rotor therein. The stator includes a magnetic circuit of laminations stacked between first and second terminal faces crossed by the passage and by a series of slots housing conductors, which are folded over to form coils. An electrically insulating reinforcing wedge piece is interposed between an internal wall of a first tubular end and a corresponding portion of a block of resin surrounding a region of winding heads of the conductors, which follow a looped path in the block of resin. A wedging unit wedges the insulating reinforcing piece in position to prevent the insulating reinforcing piece from protruding axially internally on the internal wall with respect to the region so as to leave a determined annular sector of the internal wall in direct adhering contact with the block of resin.Type: GrantFiled: September 2, 2009Date of Patent: July 8, 2014Assignees: Compagnie Generale des Etablissements Michelin, Michelin Recherche et Technique S.A.Inventors: Bertrand Vedy, Frederic Progin
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Patent number: 8766499Abstract: There is provided a vibration motor including: a housing having one open surface; a permanent magnet disposed in an internal space of the housing and interacting with a coil to generate electromagnetic force; an elastic member formed in the housing; a mass member coupled to the elastic member to perform resonant movement through the electromagnetic force; a cover covering the one open surface of the housing; and an extension part extended from the one open surface of the housing in a height direction thereof and compressed with the cover to closely attach the housing and the cover to each other.Type: GrantFiled: April 6, 2012Date of Patent: July 1, 2014Assignee: Samsung Electro-Mechanics Co., Ltd.Inventor: Yong Jin Kim
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Publication number: 20140167542Abstract: An automotive rotary electric machine according to the present invention includes: a mounting bolt that is inserted through a penetrating aperture that is formed on a bottom portion of a protective cover and that is fixed to a portion at a first axial end of a casing; and a metal mounting device that is fixed to a portion of the mounting bolt that projects out through the penetrating aperture, and a harness clamp is held by the metal mounting device.Type: ApplicationFiled: November 11, 2011Publication date: June 19, 2014Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Atsushi Ohashi, Kazunori Tanaka
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Publication number: 20140159524Abstract: The present invention discloses an auto centering fitting system for the assembly of rotating electrical machines, comprising a couple of caps (1a) and (1b), wherein said cap (1b) shows a cylindrical geometry, optionally interrupted, comprising a strengthened peripheral region (3b) from which a male-type structure (6) complementary to the channel (4) of the cap (1a) extends longitudinally; and said cap (1a) shows a strengthened region (3a), from which a pair of symmetrical tabs (3c) project distally, which will define a fitting channel (4), forming a junction (5) through the application of axial pressure on both caps in opposite directions to each other, allowing for the fitting of (6) to (4).Type: ApplicationFiled: November 4, 2013Publication date: June 12, 2014Applicant: WEG EQUIPAMENTOS ELETRICOS S.A. - MOTORESInventors: Valmir Luis Stoinski, Rui Paulo Weis
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Patent number: 8749110Abstract: A permanent magnet motor has a stator and a rotor rotatably mounted to the stator. The stator has a housing with n side portions and n connecting portions distributed alternately, wherein n is a integer equal to or greater than 3. Adjacent side portions are interconnected by one of the connecting portions. The radial cross section of each side portion is a convex curved line which is curved outwardly relative to a straight line passing through the two ends of the convex curve line. Permanent magnets are fixed to an inner surface of the housing. An end cap fixed to one end of the housing, has a bottom and n side walls extending from the bottom. A flat mounting surface is formed at the outer surface of a first one of the side walls.Type: GrantFiled: December 9, 2010Date of Patent: June 10, 2014Assignee: Johnson Electric S.A.Inventors: Ben To Fan Wong, Hong Wei Zhang, Tian Jun Liao
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Patent number: 8742709Abstract: Provided is an integrated-inverter electric compressor with suppressed self-noise interference in an inverter unit, simplified electrical connections between an inverter circuit and a filter circuit, and fewer welded positions. A housing (2) has, on the periphery thereof, an inverter box (5) accommodating the inverter circuit (21) and a junction box (6) communicating with the inverter box (5) and accommodating a plurality of high-voltage components constituting a noise-suppression filter circuit (27). The plurality of high-voltage components accommodated in the junction box (6) are electrically connected via a busbar (33). The busbar (33) includes branched busbars (34) branched off near connections with a high-voltage component installed close to the inverter circuit (21), and the branched busbars (34) are connected to P-N terminals (25) of the inverter circuit (21) in a communicating section (12) between the junction box (6) and the inverter box (5).Type: GrantFiled: June 30, 2010Date of Patent: June 3, 2014Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Takayuki Watanabe, Takeshi Hirano
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Patent number: 8742637Abstract: A waterproof and salt spray-resistant fan motor structure includes a base, a stator assembly, a case, and at least one circuit board. The base has a bearing cup vertically projected from one side thereof. The stator assembly is externally fitted around the bearing cup, and includes a plurality of silicon steel plates having windings mounted thereon. The case is arranged between the base and the stator assembly and internally defines a closed space, and the circuit board is located in the closed space. With these arrangements, the case protects the circuit board against corrosion by water and salt spray, enabling a fan to have largely extended service life.Type: GrantFiled: June 8, 2011Date of Patent: June 3, 2014Assignee: Asia Vital Components Co., Ltd.Inventor: Wen-Hao Liu
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Publication number: 20140145532Abstract: An assembly structure, including an end cover and a shell. The end cover includes a rabbet, a side wall, and an end surface. The shell includes an end part. A plurality of clamping grooves is arranged at a bottom of the rabbet and on the side wall of the end cover. Through holes are arranged above the clamping grooves and on the end surface of the end cover and communicate with the clamping grooves. A plurality of notch grooves is arranged at the end part of the shell. Clamping strips are arranged above the notch grooves and at the end part of the shell. The end cover is installed at the end part of the shell. The clamping strips are embedded in the clamping grooves for allowing the shell and the end cover to be connected together.Type: ApplicationFiled: March 16, 2013Publication date: May 29, 2014Applicant: Zhongshan Broad-Ocean Motor Manufacturing Co., Ltd.Inventor: Zhongshan Broad-Ocean Motor Manufacturing Co., Ltd.
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Patent number: 8736124Abstract: A mounting bracket for a motor, including a hoop structure and a plurality of mounting feet. The hoop structure includes a wall surface. The wall surface of the hoop structure includes the mounting feet formed by punching the wall surface of the hoop structure so that a plurality of grooves close to the mounting feet is produced on the wall surface of the hoop structure, and one end of each mounting foot is coupled to the wall surface of the hoop structure. The mounting bracket for a motor of the invention has a simple structure, low cost, and reliable connection and requires less material compared to conventional mounting brackets. The mounting bracket is suitable for different types of motors.Type: GrantFiled: November 20, 2011Date of Patent: May 27, 2014Assignee: Zhongshan Broad-Ocean Motor Co., Ltd.Inventor: Hongyu Jia
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Patent number: 8736119Abstract: A center frame is fastened to a first bracket and a second bracket such that a first mated protrusion and a second mated protrusion are fitted together with a first mated recess portion and a second mated recess portion so as to be mated. O rings are disposed annularly so as to be held between an end surface of the first bracket and a first axial end surface of the center frame, and between an end surface of the second bracket and a second axial end surface of the center frame on an opposite side from outer circumferential inner wall surfaces of the first mated recess portion and the second mated recess portion.Type: GrantFiled: September 28, 2011Date of Patent: May 27, 2014Assignee: Mitsubishi Electric CorporationInventors: Kazuyuki Iwamoto, Masaya Inoue, Shinji Nishimura
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Publication number: 20140125174Abstract: An electric motor assembly that eliminates external component-to-component assembly seams between coupled packaging hardware that would inhibit the creation and maintenance of, for example, IP 66 and IP 67 seals while utilizing inexpensive existing motor shaft rear bearing supports and also creating additional internal electronic packaging space. The disclosure provides an assembly with a continuous (e.g., no interruptions or seams) surface area to support IP sealing of the entire packaging-to-package interface between a primary motor frame (e.g., housing) and externally attached secondary/ancillary electronic hardware.Type: ApplicationFiled: November 2, 2012Publication date: May 8, 2014Inventors: Edward F. Quade, Shawn Cloran, John S. Lindblom, Corey J. Risty
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Patent number: 8716908Abstract: A power tool in the form of an electric disc grinder has a driving motor for driving a grinding wheel that performs a grinding or polishing operation on a workpiece, a motor housing that houses the driving motor, a rear cover that is mounted to a rear end region of the motor housing and forms together with the motor housing a grip to be held by a user, and a power switch including an operating lever that extends longitudinally on both of the motor housing and the rear cover and is operated by gripping with a user's hand, and a switch part that is disposed within the rear cover and actuated by operation of the operating lever to control energization of the driving motor and connected to the operating lever through an opening.Type: GrantFiled: September 1, 2009Date of Patent: May 6, 2014Assignee: Makita CorporationInventors: Shigeru Takeda, Shin Sugiura, Tadashi Fukumoto, Yoshifumi Morita
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Patent number: 8716909Abstract: A substrate transport apparatus including a drive section and a first movable arm assembly. The drive section includes a first motor. The first motor includes a stator and a passive rotor. The first movable arm assembly is connected to the first motor. The substrate transport apparatus is configured for the first movable arm assembly to be positionable in a vacuum chamber with the passive rotor being in communication with an environment inside the vacuum chamber.Type: GrantFiled: January 18, 2013Date of Patent: May 6, 2014Assignee: Persimmon Technologies, Corp.Inventors: Martin Hosek, Tuan Ha, Christopher Hofmeister, Dennis Poole
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Publication number: 20140117797Abstract: A dynamo-electric machine includes a self-supporting housing that has a laminated core section and at least one connecting section in the axial extension of the laminated core section. The laminated core section accommodates and secures, and at least sectionally surrounds all sides of, a laminated core of a stator. The individual sheets of the laminated core have a basic outer shape with an especially octagonal cross-section, a stator bore surrounded by radially arranged grooves which are evenly distributed along the circumference of the stator bore, a yoke back that radially adjoins the grooves and extends equidistantly from the stator bore, and axial cavities in the sheet, in regions between the yoke, back and the basic outer shape of the sheets.Type: ApplicationFiled: May 24, 2011Publication date: May 1, 2014Inventors: Reiner Grillenberger, Thomas Koch, Martin Sindelka, Ulrich Werner
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Patent number: 8710705Abstract: An electronic control unit (50, 70) including semiconductor modules (501 to 506) and capacitors (701 to 706) is disposed in the axial direction of a motor (30). The semiconductor modules (501 to 506) are placed longitudinally and brought into contact with a heat sink (601). The vertical line to each of surfaces of semiconductor chips included in the semiconductor modules (501 to 506) is perpendicular to the axial line of the motor (30). Accordingly, the capacitors (701 to 706) are disposed so that at least a part of the capacitors (701 to 706) overlap the semiconductor modules (501 to 506) and heat sink (601) in the axial direction of the motor (30).Type: GrantFiled: December 23, 2011Date of Patent: April 29, 2014Assignee: Denso CorporationInventors: Masashi Yamasaki, Hideki Kabune, Atsushi Furumoto
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Patent number: 8704412Abstract: A rotary electric machine includes a stator in which windings are arranged around a plurality of main poles of a stator core, and a hybrid type rotor arranged with an air gap between the stator and the rotor has a step angle for the rotor of about 4.09° and uses metal bearings for supporting a rotor shaft of the rotor. Setting of the step angle for the rotor to be about 4.09° can make a rotation angle of the rotor caused by excitation of the windings by an input pulse signal larger as compared with a typical motor having a step angle of about 1.8°. With this unique arrangement, the rotor can be rotated at higher speeds, increasing the motor efficiency. Therefore, the motor output at approximately the same level as that of a conventional motor can be obtained without keeping the air gap high precision. Due to this, even if inexpensive slide bearings, i.e.Type: GrantFiled: June 10, 2011Date of Patent: April 22, 2014Assignee: Nidec Servo CorporationInventors: Shigeaki Terashita, Yoji Unoki
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Patent number: 8704415Abstract: In a controller-integrated electric rotating machine provided with a power circuit unit and a control circuit unit, a cooling property is improved so that the control circuit unit does not impair a flow of air for cooling the power circuit unit. A power circuit unit having switching elements for converting DC power to AC power for supplying the AC power to an electric rotating machine, a control circuit unit for controlling the switching elements of the power circuit unit, and a rotational position detection sensor arranged on a rotating shaft for detecting the rotation of the rotating shaft are provided. The control circuit unit is disposed, when viewed in the direction of the rotating shaft, at a position where the power circuit unit is not disposed and is shifted radially outward so as not to overlap the rotational position detection sensor.Type: GrantFiled: February 14, 2012Date of Patent: April 22, 2014Assignee: Mitsubishi Electric CorporationInventors: Masaki Kato, Yoshihito Asao
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Patent number: 8696327Abstract: An electrical submersible pump motor has motor oil flowing through external circulation tubes for cooling the motor. A substantial portion of the exterior of each tube is submerged in and exposed to wellbore fluid. Heat is transferred from the motor to the motor oil, and then circulated through the external circulation tubes to conduct heat to the wellbore fluid. Internal or external motor oil pumps may be used to propel the motor oil through the circulation tubes. Guards or baffles may be used to protect the circulation tubes and to influence the flow of production fluid over the circulation tubes.Type: GrantFiled: December 8, 2009Date of Patent: April 15, 2014Assignee: Baker Hughes IncorporatedInventor: Michael A. Forsberg
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Publication number: 20140097716Abstract: Through a housing of an electric motor, an output shaft attached to a rotor penetrates. In this housing, an air tightness test hole of the electric motor which communicates with internal space of the electric space formed with the housing and a stator is formed. Further, an oil seal which blocks aeration between the internal space and an outside of the electric motor is attached to this housing.Type: ApplicationFiled: October 4, 2013Publication date: April 10, 2014Applicant: FANUC CORPORATIONInventors: Tomonaga YAMAMOTO, Makoto FUNAKUBO
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Patent number: 8692425Abstract: Some embodiments of the invention provide an electric machine module comprising a housing including a sleeve member and at least one end cap. In some embodiments, the sleeve member can include a first coolant jacket and a second coolant jacket. Also, in some embodiments, the end cap can include an end cap coolant jacket. Also, some embodiments provide an electric machine including stator end turns, housing at least partially enclosing the electric machine, and an end cap coolant jacket positioned substantially axially outward relative to at least one of the stator end turns.Type: GrantFiled: May 10, 2011Date of Patent: April 8, 2014Assignee: Remy Technologies, LLCInventors: Alex S. Creviston, Bradley D. Chamberlin, Larry Kubes
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Patent number: 8692429Abstract: A motor casing, including a hollow motor casing body. The wall of the motor casing body comprises a plurality of brackets and a plurality of grooves which are formed simultaneously by punching the wall of the motor casing body. The plurality of grooves is disposed one close to one of the brackets. One end of each bracket is coupled to the wall of the motor casing body. The motor casing has a simple structure, low cost, and reliable connection and requires less materials compared to conventional motor casings.Type: GrantFiled: November 21, 2011Date of Patent: April 8, 2014Assignee: Zhongshan Broad-Ocean Motor Co., Ltd.Inventors: Hongyu Jia, Xiongcheng Wang
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Patent number: 8689486Abstract: A chassis for a barrier operator is provided. The barrier operator includes a motor and a transmission configured to cooperate with a rail system to move a barrier. The chassis includes a unibody frame having a first portion, a second portion, and a third portion. The first portion is configured to receive and secure the motor to the unibody frame. The second portion is configured to receive and secure the transmission to the unibody frame. The third portion is configured to receive and secure at least a portion of the rail system to the unibody frame. The first, second, and third portions are formed as a single, integral component.Type: GrantFiled: July 24, 2012Date of Patent: April 8, 2014Assignee: The Chamberlain Group, Inc.Inventor: Curtis P. Menning
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Patent number: 8692428Abstract: A linear actuator having an output shaft with a long moving distance is provided. A linear actuator includes a rotary shaft, a motor portion having a rotor and a stator, a ball screw mechanism including a ball screw nut fixed to a first end of the rotary shaft and a ball screw, a casing assembly including a first end bracket and a second end bracket, an electromagnetic brake device including a rotary brake disc, a stationary brake disc, and an electromagnetic coil, and a brake cover for covering the electromagnetic brake device. The electromagnetic brake device has a hollow structure allowing a second end of the rotary shaft to pass therethrough.Type: GrantFiled: December 10, 2010Date of Patent: April 8, 2014Assignee: Sanyo Denki Co., Ltd.Inventors: Shigenori Miyairi, Koji Nakatake
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Patent number: 8683673Abstract: A method is provided, for manufacturing a stator for a rotary electric machine by shrink-fitting an outer cylinder to a core assembly where a cage-shaped wound coil is assembled with segment cores. The assembly is inserted into the outer cylinder having a diameter increased by thermal expansion caused by the heat from a heating unit, while the outer diameter of the assembly is being reduced by permitting the assembly to pass through a tapered guide unit. The guide unit has a portion whose diameter is larger than an outer diameter of the assembly, and a portion whose diameter is larger than an inner diameter of the outer cylinder and smaller than an inner diameter of the cylinder in the thermally expanded state, and a tapered through hole vertically passing through the guide unit. Thus, the size of the assembly is radially reduced, with a uniform diameter being obtained throughout the assembly.Type: GrantFiled: July 7, 2009Date of Patent: April 1, 2014Assignee: Denso CorporationInventors: Akito Akimoto, Keigo Moriguchi, Seiji Hayashi
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Patent number: 8680727Abstract: A brushless rotary actuator comprises a housing including a motor housing defining a cavity for a motor assembly and a cover defining a cavity for a gear assembly. The motor assembly includes a rotor and a stator with a plurality of bobbins. A clip in the form of a ring plate is seated against the bobbins for retaining the bobbins on the stator. Fingers formed on the ring plate are fitted into respective slots defined by respective bobbin terminals. A circuit board is seated in the housing against an interior shoulder of the motor housing. A plate is seated in the housing against a peripheral rim of the motor housing in a spaced relationship above the circuit board.Type: GrantFiled: May 24, 2010Date of Patent: March 25, 2014Assignee: CTS CorporationInventors: Douglas Edward Cors, Patrick B. Blakesley, Ryan P. Garver, Derek L. Crites
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Patent number: 8674567Abstract: A unit housing for a motor unit includes a substantially cylindrical housing body, an end housing, and connectors. The end housing has a peripheral wall and an end wall. The connectors include bolts to connect respectively 3-phase power lines to the lead wires led from the ring-shaped stator. The peripheral wall includes a recess to secure an insulating space between an inner surface of the peripheral wall and each of the connectors. The recess is provided in the inner surface of the peripheral wall at a position close to the connectors. The inner surface of the peripheral wall is provided to linearly extend from a bottom surface of the recess toward an opening end of the peripheral wall.Type: GrantFiled: January 18, 2012Date of Patent: March 18, 2014Assignee: Honda Motor Co., Ltd.Inventor: Manabu Sakurada
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Patent number: 8674568Abstract: A machine includes a high voltage element and an enclosure surrounding the high voltage element. The enclosure includes a first insulating insert disposed at least partially within a first wall and being electrically non-conductive and surrounding a first conductive insert and an enclosure cover formed at least partially of an electrically non-conducting substrate and having a first opening formed therein sized to allow a first fastener or an extension of the first conductive insert to pass through it. Removal of the enclosure cover causes the high high-voltage element to cease operating.Type: GrantFiled: January 23, 2012Date of Patent: March 18, 2014Assignee: Remy Technologies, L.L.C.Inventors: Colin James Hamer, Brad D. Chamberlin
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Patent number: 8674573Abstract: In a motor, a motor case includes a first case and a second case separable from each other in a direction of an axis of a rotation shaft of a rotor. The first case and the second case each have cut-away portions extending parallel to the axis from a separation edge (open side edge) thereof. The separation edges of the first and second cases each have abutment portions not formed with the cut-away portions, and the abutment portions of the first case respectively abut against the abutment portions of the second case. The cut-away portions cooperatively define a plurality of windows disposed in a periphery of the motor case. The stator has a plurality of bulges projecting radially outward from a peripheral surface thereof in association with the windows.Type: GrantFiled: June 24, 2011Date of Patent: March 18, 2014Assignees: Sanyo Electric Co., Ltd., Sanyo Consumer Electronics Co., Ltd.Inventor: Ryohei Adachi
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Patent number: 8659193Abstract: A power module for supplying driving current to coils wound on a stator of an electric motor and a heat sink for absorbing heat generated at the power module are provided at an axial outside of a motor casing. An intermediate member is provided between the motor casing and the heat sink. The intermediate member has a bottom plate portion fixed to an axial end plate of the motor casing and a cylindrical side wall axially extending from the bottom plate portion. An outer peripheral surface of the heat sink is in contact with an inner peripheral surface of the cylindrical side wall, so that the power module fixed to the heat sink is arranged in a space, which is within a range smaller than an outer diameter of the motor casing.Type: GrantFiled: April 13, 2011Date of Patent: February 25, 2014Assignee: Denso CorporationInventors: Masashi Yamasaki, Hiroshi Imai, Katsuji Kawai
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Patent number: 8659215Abstract: According to one embodiment, a motor has a cylindrical stator core and rotor. A first framework is fixed to a side of the stator core in an axial direction, and a first bearing housing is fixed to the outside of the first framework. A second framework is fixed to the other side of the stator core. A second bearing housing is fixed to the outside of the second framework. The rotor has a rotational shaft, supported by the bearings, extending into the frameworks. A rotor core is attached to the shaft. Support bases are fixed to the rotor, and are interposed by the rotor core. A locking member coupled to the first framework is configured to contact the first support base. A locking member coupled to the second framework is configured to contact the second support base. The rotor is fixed by the locking members contact with the support bases.Type: GrantFiled: September 9, 2011Date of Patent: February 25, 2014Assignee: Toshiba CorporationInventors: Takashi Nagayama, Shigetomo Shiraishi
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Patent number: 8659197Abstract: An electric machine including a stator having a body provided with at least one alignment member, and a resolver positioned relative to the stator. The resolver includes at least one alignment element. An alignment adaptor is configured to receive each of the stator and the resolver. The alignment adaptor includes an alignment system that positions the alignment member and the alignment element to establish a desired alignment between the stator and the resolver.Type: GrantFiled: July 8, 2011Date of Patent: February 25, 2014Assignee: Remy Technologies, L.L.C.Inventor: Bradley D. Chamberlin
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Patent number: 8653707Abstract: A motor includes a shaft, a bearing arranged to support the shaft such that the shaft is rotatable about a central axis, a rotating body fixed to the shaft and including a rotor magnet arranged in an outer circumference thereof, a stator arranged radially outward of the rotor magnet, a circuit board arranged to be perpendicular to the central axis on one axial side of the rotating body, and an encoder arranged to detect rotation of the rotating body. The encoder includes a reflection pattern arranged on a surface of the rotating body which is opposed to the circuit board, and a reflective rotation detection sensor arranged on the circuit board to detect the rotation of the rotating body by irradiating the reflection pattern with light.Type: GrantFiled: August 8, 2011Date of Patent: February 18, 2014Assignee: Nidec CorporationInventors: Keizo Furukawa, Nobuyuki Iwashita, Koichi Okumura
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Patent number: 8651830Abstract: A central tubular structure of a shaft seat and a fan device thereof. The central tubular structure includes a base, a bushing connected with the base and a sealing member. The bushing has an outer tubular wall, an inner tubular wall and a top section interconnected between the outer and inner tubular walls to define a receiving space. The inner tubular wall defines a bearing hole. The bushing further has a reception space in adjacency to the base in communication with the receiving space and the bearing hole. The sealing member is fitted in the reception space to seal the same. The fan device is composed of the central tubular structure, a stator assembly, at least one bearing and a fan propeller. The stator assembly is arranged in the receiving space and has a substrate board. The substrate board is free from any perforation and received in the reception space.Type: GrantFiled: August 13, 2010Date of Patent: February 18, 2014Assignee: Asia Vital Components Co., Ltd.Inventor: Ching-Hang Shen
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Publication number: 20140042846Abstract: Disclosed herein is a motor housing including: a housing body accommodating a stator and a rotor therein; and a supporting frame coupled to the housing body and supporting a shaft of the rotor, wherein an end portion of the housing body is provided with a fixing part that is extended inwardly, such that the supporting frame is coupled to the fixing part.Type: ApplicationFiled: December 6, 2012Publication date: February 13, 2014Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Myung Geun Oh, Yong Wan Cho, Sang Ho Seo, Sung Tai Jung, Jung Kyu Yim
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Patent number: 8648503Abstract: The invention relates to an arrangement for acoustic decoupling of a stator of an electric motor having two substantially cylindrical decoupling rings disposed on both sides of the stator and concentric to a motor shaft, each fixed to a front side of the stator on one side and each fixed to a housing enclosing the stator on the other side, and comprising recesses on the circumferential surfaces thereof. The decoupling rings hold the stator in a centered position at a distance from the housing. The recesses allow targeted acoustic decoupling. The invention is particularly applicable for electric motors in steering systems for motor vehicles.Type: GrantFiled: July 9, 2010Date of Patent: February 11, 2014Assignee: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, WürzburgInventors: Bernhard Kessler, Christian Finger, Christian Schumpa, Zhiguo Wang
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Patent number: 8648510Abstract: A cover structure of an actuator is provided in which a case of the actuator, which houses a conversion mechanism that converts input energy to mechanical motion, has a metal cover fastening portion and a cover member to which a metal fastening part that is fastened to the cover fastening portion is integrally attached. The cover member is formed by a metal cover portion and a resin cover portion. The metal cover portion has a center portion that covers part of the conversion mechanism, and an extended portion that extends from the center portion to the area near the metal fastening part so as to oppose the cover fastening portion. In this way, a vehicular power transmitting apparatus that discourages theft is provided by realizing an actuator with a strong cover fastening structure by making the fastening portion of the actuator be able to withstand intentionally inflicted damage without its weight being increased much.Type: GrantFiled: October 7, 2008Date of Patent: February 11, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takeshi Miyagawa, Takanao Sugiura, Mamoru Moriyama
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Patent number: 8643234Abstract: An object of the present invention is to provide an electrical rotating machine capable of securing safety against collision. Included are a rotor having a field winding and cooling fans, and a stator having a stator winding, arranged so as to surround the rotor. A bracket 1 is fixed to a load side end of the stator, and a heat sink is disposed inside the bracket. On the anti-load side of the heat sink, a field circuit unit and power circuit units for controlling the field winding and the stator winding, respectively, are mounted, whereas on the load side thereof, cooling fins are disposed. The anti-load side and lateral side of the field circuit unit and the power circuit units are surrounded by the bracket. Accordingly, a whole of the field circuit unit and the power circuit units is surrounded by the bracket and the heat sink.Type: GrantFiled: November 2, 2009Date of Patent: February 4, 2014Assignee: Mitsubishi Electric CorporationInventors: Yuji Shirakata, Masao Kikuchi, Masahiko Fujita, Hitoshi Isoda
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Patent number: 8643231Abstract: Embodiments of the invention provide a water resistant electric motor and method of assembly. The motor includes a housing with a main body having a rear endbell, a stator compartment with stator windings, and a first ball bearing. The motor includes a lid having a second ball bearing, and a rotor with a shaft having a first end positioned in the first ball bearing and a second end positioned in the second ball bearing. An epoxy coating is used to overmold the stator compartment, the stator windings, and the rotor. The motor includes a printed circuit board assembly treated with an adhesion promotor and positioned adjacent to the rotor and stator windings. A silicone sealant is used to encapsulate the printed circuit board assembly, the rotor, and the stator windings and reacts with the adhesion promotor. The motor includes a gasket between the lid and the main body.Type: GrantFiled: May 18, 2010Date of Patent: February 4, 2014Assignee: Moog Inc.Inventor: Ron Flanary
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Patent number: 8633624Abstract: Flow control apparatus for an electrical machine and comprising an arrangement of shaped chambers and passages for conveying a liquid coolant. The rate of heat transfer from certain portions of the machine to the coolant is determined by the varying velocity of the liquid through the chambers, resulting in a generally uniform cooling of those portions of the machine.Type: GrantFiled: June 19, 2013Date of Patent: January 21, 2014Assignee: Controlled Power Technologies, Ltd.Inventors: Stephen Knight, Mike Dowsett, Toby Heason
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Patent number: 8630095Abstract: A linked semiconductor module unit links a plurality of semiconductor modules by a first bus bar and a second bus bar, which are embedded in resin parts. The linked semiconductor module unit is disposed in a place other than on a printed circuit board. The semiconductor module linking structure is implemented readily by molding the bus bars together with semiconductor chips and lands to form the resin parts.Type: GrantFiled: June 24, 2010Date of Patent: January 14, 2014Assignee: Denso CorporationInventors: Hideki Minato, Hideki Kabune, Atsushi Furumoto
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Patent number: 8629590Abstract: A rotor of an electric motor has a carrier structure including a disc portion to which is centrally connected a shaft, and the periphery of which is joined to an essentially cylindrical annular skirt portion which in use extends coaxially around the stator. The disc portion has a plurality of slots between which there is defined a corresponding plurality of spokes. At least some of the spokes have, in a circumferential direction, a transverse cross-section shaped in a manner to induce, at least when the rotor rotates in one direction, an at least approximately axial air flow through corresponding slots.Type: GrantFiled: January 14, 2011Date of Patent: January 14, 2014Assignee: Gate S.R.L.Inventor: Luciano Marchitto