Abstract: An electric motor has a primary and a secondary seal isolating a rotor cavity from a stator cavity.

Abstract: An axial flux electric motor is disclosed. The motor includes a rotor having a first rotor face, a second rotor face, a primary bearing locator on the first rotor face and one or more permanent magnets mounted to the first rotor face. Also included is a stator having a first stator face, a second stator face, a secondary bearing locator on the first stator face, a stator winding having one or more conductors and a connector for connection of the stator winding to a power source. A bearing assembly is also provided and positioned between the first face of the rotor and the first face of the stator for rotationally supporting movement of the rotor relative to the stator, the bearing assembly axially displacing the rotor from the stator to provide an air gap therebetween. The bearing assembly is engaged by the primary and secondary bearing locators to correctly position the bearing assembly.

Abstract: An electric machine includes a housing, a bearing and a securing device. The housing defines a bearing seat and a support surface. The bearing cooperates with the bearing seat and defines a bearing clamping surface. The securing device is connected to the housing and includes a fastener and a member defining a member clamping surface. The member and the fastener secure the bearing to the housing. The securing device has a first position for assembly of the bearing into the bearing seat and a second position for constraining the bearing in the housing. The member clamping surface overlies the bearing clamping surface when the member is in the second position. The member provides continuous movement from the first position to the second position. The support surface engages the member when the member is in the second position.

Abstract: There are provided a fluid dynamic bearing assembly, a spindle motor having the same, and a method of assembling a shaft and a stopper, the fluid dynamic bearing assembly, including: a shaft, a sleeve rotatably supporting the shaft by fluid dynamic pressure, the shaft rotating relative thereto accordingly, and a stopper having a body inserted into a fixing recess provided on a lower portion of the shaft, and a flange provided to be protruded from a lower end of the body to an outer side thereof in a radial direction and caught by a lower end of the sleeve, wherein the stopper includes an air vent penetrating therethrough in an axial direction.

Abstract: A power system with regeneration may include an electric power storage element, an electric motor in electrical communication with the electric power storage element, a rotatable shaft operably coupled to the electric motor for rotation by the electric motor and adapted to provide rotational energy to a power take-off device, and a regeneration component operably coupled to the rotatable shaft and adapted for converting rotational energy of the shaft to electrical energy, the regeneration component being in electrical communication with the electric power storage element and adapted to recharge the electric power storage element.

Abstract: A brushless motor capable of high speed rotation by field weakening operation is designed to reduce torque ripple at a maximum load point with current phase advance so that the torque ripple at the maximum load point is 1 to 1.5 times the torque ripple at a low speed load point.

Abstract: A high-efficiency power generator has a rotor fixed on an input shaft and having a plurality of magnets in a rotor circumferential direction, and a stator which opposes the rotor in an opposing direction with a predetermined spacing therebetween and having stator coils wound around teeth which protrude in the opposing direction. The stator coils are arranged in an uneven-phase placement.

Abstract: A permanent-magnet type rotating electrical machine, including a rotor including a plurality of magnetic poles arranged at an equal interval, and a stator including a plurality of teeth and a plurality of armature windings. A high frequency voltage different in frequency and amplitude from voltages for generating a torque is applied to the armature windings. A magnetic pole position of the rotor is estimated by using a current trajectory of a measured high frequency current. When dq transform is applied to the measured high frequency current, a current trajectory forms an ellipse on d and q axes. Angular variation ranges of a major axis of the ellipse with respect to a load current and a rotor position are set so as to acquire a predetermined position estimation resolution.

Abstract: A rotating electrical machine includes a stator core, a rotor core, and permanent magnets. The stator core includes a yoke and tooth portions projecting from the yoke in a radial inward direction. Each tooth portion has a base joined to the yoke and an end opposite to the base. The rotor core includes a boss portion and projections. The projections project from the boss portion in a radial outward direction and spaced in a circumferential direction. Each permanent magnet is located between and spaced from adjacent projections to forma gap in the circumferential direction. A width of the gap is not greater than a width of the end of the tooth portion in the circumferential direction.

Abstract: A plurality of lamination steel sheets that form a rotor core are stacked so that the lamination steel sheets are angularly shifted from each other, and a plurality of cavities are formed. Permanent magnets are molded and disposed in the cavities by injection molding. Each permanent magnet has a uniform plate thickness, and is bent with respect to an axial direction so as to have a triangular wave shape or an S shape. The permanent magnets are magnetized after being disposed in the cavities. The paired magnet pieces have poles of the same polarity, which face each other in the circumferential direction of a rotor, and each of the magnet pieces is magnetized in directions of normals to a surface of the magnet piece, the surface having a linear sectional shape.

Abstract: A rotor assembly, including: a permanent magnet, a rotor core, and a magnetic loop. The rotor core includes an annular ring including a central axial bore, and a plurality of magnetic induction blocks protruding outward from an outer side of the annular ring. A through hole is arranged on the magnetic induction block. A radial recess is formed between every two adjacent magnetic induction blocks for mounting the permanent magnet. An end plate and a base plate are disposed on an end surface and a bottom surface of the rotor core by injection molding, respectively. A connecting column passes through the through hole and connects the end plate and the base plate as a whole body. An end surface of the end plate protrudes upward to form a magnetic loop bracket. The magnetic loop is disposed on the magnetic loop bracket.

Abstract: An electrical rotating machine includes: a rotating shaft; a rotor, equipped with permanent magnets, and formed to rotate with the rotating shaft, a stator disposed in opposition on an outside-diametral side and via a clearance with respect to the rotor; and anti-demagnetization conductors extending in the axial direction of the shaft, the conductors each being disposed inside the rotor, wherein: the anti-demagnetization conductors are provided in pairs of two for each of magnetic poles of the rotor; the two anti-demagnetization conductors forming a pair are electrically interconnected; and, inside the rotor, the two paired anti-demagnetization conductors are disposed at different-polarity sides of two corresponding permanent magnets in a circumferential direction of the rotor, the different-polarity sides each being more adjacent to the circumferential direction of the rotor than to an end portion of one of the two corresponding permanent magnets existing close to each other in one magnetic pole.

Abstract: An apparatus (structure) is provided to support a superconductor winding (61) of an electromotive machine. One or more elongated loops (74) and appropriate support structure (120) may be arranged to provide radial and tangential support to the superconducting winding (61). The elongated loops may be made of a material substantially resistant to heat flow. An axially-extending base assembly (100) may be arranged to anchor loops (74) with respect to the rotor core at a proximate end (76) of the elongated loops. A cradle (80) may be configured to define a recess (82) to receive the superconductor winding and to support the elongated loops at a distal end (78) of the loops.

Abstract: A novel stator for an electric drive, is described and which includes—a stator body defining a coil space for accommodating a coil wire in the form of a coil, and wherein the coil space comprises a plurality of slots, which are delimited by a stator wall and pole horns made integral with the stator; and wherein—the coil wire is inserted into the coil space, and is subsequently wound out via the slot in the region which is located between the two pole horns. In addition, the disclosed invention relates to a method for producing a stator.

Abstract: An electric rotating machine is provided that efficiently radiates heat, caused in the vicinity of a portion where a brush and a slip ring makes contact with each other, to the outside of a brush holder and that can prevent the temperature of the brush from excessively rising. The brush holder holding the brush that supplies a magnetic-field current to a magnetic-field winding by way of the slip ring is provided with an energization terminal that electrically connects a magnetic-field circuit with the brush and a brush cooling metal member that cools the brush; the brush cooling metal member radiates heat, generated in the vicinity of a contact portion between the brush and the slip ring, to the outside of the brush holder.

Abstract: A brush intended for ensuring electrical contact between a fixed part and a moving part, said brush comprising a layer composed chiefly of carbon, silver, and of another metal different from silver, for example copper.

Abstract: An acoustic wave device includes: a piezoelectric substrate of which four sides of an upper surface are approximate cleavage directions; and an electrode that is formed on the upper surface of the piezoelectric substrate, and excites an acoustic wave propagating in a direction different from the approximate cleavage directions.

Abstract: A surface acoustic wave (SAW) array sensor having an input interdigital transducer (IDT); first and second output IDTs that are disposed at both sides of the input IDT, respectively; a first delay line between the input IDT and the first output IDT; and a second delay line between the input IDT and the second output IDT, wherein the first and second delay lines have different lengths; and related devices.

Abstract: An elastic wave element includes a piezoelectric substrate, an IDT electrode, and a first dielectric film. The IDT electrode includes a first bus bar electrode, a second bus bar electrode, first electrode fingers, and second electrode fingers. The piezoelectric substrate includes a bus bar electrode region, an alternately disposed region, and an intermediate region. The first dielectric film is formed in at least a part of the intermediate region, and formed of a medium in which acoustic velocity of a transverse wave propagating in the first dielectric film is lower than acoustic velocity of a main elastic wave in the alternately disposed region.

Abstract: The invention relates to an actuator (1) having stacked piezoelements (16), first and second inner electrodes (5, 3) disposed alternatingly between the piezoelements (16), a first outer electrode (4) which is electrically conductively connected to the first inner electrode (5), a second outer electrode (2) which is electrically conductively connected to the second inner electrode (3), characterized in that the actuator (1) comprises a plurality of actuator segments (81, 82, 83, 84, 85) and that the second outer electrode (2) comprises separate electrode segments (21, 22, 23, 24, 25) each of which are electrically conductively connected to the second inner electrodes (3) in one of the actuator segments (81, 82, 83, 84, 85).

Abstract: A resonator element which can achieve a reduction in size while maintaining vibration characteristics, and a piezoelectric device and an electronic device, are to be provided. A quartz crystal resonator element has a base portion, a pair of arm portions extending from the base portion as a root, and a cut-out portion formed by reducing the width of the base portion in the width direction from each side of the arm portions. The root has a first root portion positioned on a side where the arm portions are opposed to each other, and a second root portion positioned on a side where the arm portions are not opposed to each other, and a relationship between a length A from the first root portion to the second root portion and a length B from the first root portion to an inner end portion of the cut-out portion is A?B.

Abstract: An ultrasonic motor is described. The ultrasonic motor includes a plurality of plate-shaped piezoelectric ultrasonic actuators. Each of the ultrasonic actuators includes at least one friction element allocated thereto. Each ultrasonic actuator or each of one or more pairs of ultrasonic actuators is assigned an element to be driven. The ultrasonic motor also includes a housing. The ultrasonic motor also includes an electric excitation device. The elements to be driven are movable independently of each other, and each ultrasonic actuator or each of the one or more pairs of ultrasonic actuators is arranged in a holder. The holders are pressed against each other by housing side covers. The friction elements on the ultrasonic actuators are pressed against a friction layer of the corresponding element to be driven by an elastic interlayer that is in contact with edge surfaces of the ultrasonic actuators that are arranged opposite the friction elements.

Abstract: The present invention discloses a composite polarization type piezoelectric actuator comprising a ceramic element having a first polarizing region and a second polarizing region, wherein the first polarizing region has a first polarizing direction different from a second polarizing direction of the second polarizing region. When a voltage is applied to the composite polarization type piezoelectric actuator, an end face of the ceramic element is deformed. When a pulse wave voltage is applied to the composite polarization type piezoelectric actuator, the end face of the ceramic element generates an elliptical motion.

Abstract: Provided are a polymer and a polymer actuator including the polymer. The polymer is cross-linked by a cross-linking agent. When the polymer is used in the polymer actuator, the polymer actuator shows a high strain and may be stably operated at high temperatures.

Abstract: A motor assembly includes two cap bodies, a stator body, a rotor body and a fixing mechanism. Each cap body has a bearing holder and a plurality of positioning portions radially extended from the bearing holder. Each bearing holder has a bearing received. A shaft passes through a center part of the rotor body, and two ends of the shaft sleeved in the two bearings respectively. The stator body has a plurality of stator units aligned around an outer periphery of the rotor body. Under this arrangement, the stator units of the stator body is axially sandwiched by the positioning portions of the two cap bodies, and the stator body and the two cap bodies are fixed together via, the fixing mechanism. The motor assembly simplifies the coil winding procedure for the stator body, so that the manufacturing costs of the stator body and the motor assembly are significantly reduced.

Abstract: Disclosed herein is an assembling structure for a resolver capable of improving precision in sensing a position of a rotor of a motor by stably coupling and fixing a resolver stator part. More specifically, a fixing ring is coupled to the resolver stator part, a first coupling part of a motor housing, and a second coupling part of a cover member so as to simultaneously contact three surfaces of the resolver stator part, the first coupling part, and the second coupling part to form a stable coupling structure among the resolver stator part, the first coupling part, and the second coupling part, thereby making it possible to secure precision of a coupling position of the resolver stator part.

Abstract: A rectifier system having press-in diodes that contain a Schottky diode as semiconductor element. The Schottky diodes are operated in an operating range in which the diode losses increase as the temperature increases.

Abstract: There is provided a spindle motor including: a base member; a holding member having a lower end portion fixedly connected to the base member and a stator core installed on an outer peripheral surface thereof; a sleeve fixedly installed on an inner peripheral surface of the holding member; a shaft rotatably supported by the sleeve; and a rotor hub installed on an upper end portion of the shaft to rotate together therewith.

Abstract: The invention relates to a mobile information and entertainment unit (1) with a base body (2), which comprises side walls (3, 4, 5, 6), at least one bottom wall (7) and at least one openable cover (22), which enclose an interior (8), and with a screen (14) for displaying information and entertainment content, wherein the screen (14) is mounted on a swivel arm (13), the swivel arm (13) and the screen (14) when in use are disposed outside the interior (8), the swivel arm (13) and the screen (14) can be stored in a rest position in the interior (8), and when the screen (14) and swivel arm (13) are stored in the interior (8) the cover (22) can be closed.

Abstract: A storage device having a locking mechanism includes a housing having a frame assembly. A storage device is movably received in the housing. An actuator is connected to the frame assembly, the actuator operating to move a cam member. A latch is connected to the frame assembly and is moved by contact with the cam member from a latched position preventing access to the storage device in the housing to an unlatched position permitting access to the storage device. An unlock-all mechanism operates to move the latch to the unlatched position without operation of the actuator.

Abstract: A modular frame is provided for containing electronic components within a replaceable mission module for installation aboard ship. The frame includes a plurality of metal tubes having rectangular cross-section, a plurality of sheet-metal panels, and a plurality of fasteners for connecting together the tubes and panels. The frame assembles as a rectangular base platform, a lower portion, a mezzanine level, and an interface level. The base platform includes horizontally arranged tubes. The lower portion has vertical tubes attaching to the horizontal tubes on the base platform. The mezzanine level has a horizontal panel and horizontal tubes connecting together atop the lower portion. The upper portion has vertical tubes attaching to the horizontal tubes of the mezzanine level. The interface level has horizontal tubes connecting together atop the vertical tubes of the upper portion.

Abstract: A modular, ventilated enclosure includes a base and a frame coupled to the base. The base includes at least one mounting receptacle for mounting a fan. The enclosure can include four side panels coupled to the frame and a back panel coupled to the frame in the interior of the enclosure. The back panel can be adapted to mount electrical equipment. A cover can be coupled to the frame and can include an overhang to prevent debris from entering the interior of the enclosure. The enclosure can also include a gravity controlled damper system with a damper that moves to an open position when an internal pressure in the interior of the enclosure increases. The enclosure can include a passive air flow passage that ventilates the enclosure when the damper is in the closed position.

Abstract: A chassis of an electronic device includes an enclosure and a number of ball bars each having a number of balls. The enclosure defines a number of through holes. The ball bars are installed to an inner surface of the enclosure so the balls are rotatably received in the through holes. A lower part of each ball extends out of a bottom surface of the enclosure through the through hole.

Abstract: The present invention relates to a washer/dryer (1) comprising two side walls (2) closing the volume from sides wherein the drum, in which the laundry is placed, and other elements are located, a front wall (3) closing the said volume from the front, an opening (4) which is disposed on the front wall (3) and enables the laundry to be placed in the drum, a lid (5) covering the opening (4), a lock (6) disposed on the front wall (3), a tenon (7) which is disposed on the lid (5) and provides the lid (5) to remain in the closed position by being placed into the lock (6) and a hole (8) disposed on the front wall (3), behind which the lock (6) is placed and which enables the tenon (7) to reach the lock (6).

Abstract: A mouse housing structure includes a housing having a main body of a front wall, and a tongue portion defining a position wall, at least a track device disposed at the tongue portion and defining first and second position ends at two opposite ends thereof, and a sliding device including a sliding body and at least a rotatable shaft having first and second engaging portions. The first engaging portion is movably and rotatably disposed in the track device, and the second engaging portion is spaced away from the track device for pivotally engaging with a coupling slot of the sliding body. When the sliding body moves forwards to where the first engaging portion slides against the first position end, the sliding body rotates towards the position wall, and is restrained by the position wall so as to expand the mouse housing structure for use.

Abstract: An apparatus includes a first housing having a first cam and a second housing having a second cam. A link is configured and disposed to slidingly engage these cams. The first housing moves with respect to the second housing between a first position (that comprises a stacked configuration and a second position (that comprises a deployed configuration). The aforementioned link can include a pair of substantially collinear slots disposed therethrough. The cams, in turn, can be at least substantially pear shaped and can be disposed offset to one another and substantially longitudinally parallel to one another as well. Also if desired, such cams can be disposed on interior surfaces of both housings, and on both sides of the housings as well.

Abstract: An apparatus and method unlock a shaft (42, 142) of a unit (24, 124) for rotation in response to a mechanical reaction between the unit (24, 124) and an enclosure (22, 122) receiving the unit (24, 124) when the unit (24, 124) has been sufficiently inserted into the enclosure (22, 122), whereby rotation of the shaft (42, 142) linearly translates a component of the unit (24, 124) into connection with a component of the enclosure (22, 122).

Abstract: A touch-latch device used in furniture especially for initial opening of an opening furniture component, comprising a housing with an axially arranged groove, in which a push element is slidingly arranged, said element being actuated by a helical spring and controllable by a dual-position guide mechanism comprising a cam groove guide and an S-pin, wherein the device comprises a push element controlled by two dual-position guide mechanisms, wherein each cam groove guide of a dual-position guide mechanism is arranged on a lateral side of the push element and the S-pin is pivoted in the lateral wall of the groove of the housing, and that the push element is provided at its free end with a regulation plug arranged by means of a bolted joint, said plug being displaceable in axial direction, wherein the axial displacement of the regulation plug is limited by an arrester arranged therein.

Abstract: A hinge has a central element and a surrounding element. One of the central element and the surrounding element is formed by injection molding, and the other element is then formed on the priorly-formed element by injection molding such that a limit segment is mounted around the neck segment having a smallest outer width of the central element, which keeps the surrounding element from departing from the central element, and further simplifies a structure of the hinge. Because a melting point of the element formed priorly is higher than a melting point of the element formed later, the element formed later does not attach to the element formed priorly, and the two elements are relatively rotatable. Finally, because the manufacture of the hinge is accomplished after injection molding twice, the process of manufacturing the hinge is more convenient, faster and lowers the cost.

Abstract: An enclosure includes a chassis, a front panel pivotably attached to the chassis, a latching member movably attached to the front panel for latching the front panel to the chassis, and a controlling apparatus. The controlling apparatus utilizes a connecting pole to engage with or disengage from the latching member, to control the latching member to be locked to the chassis or released from the chassis.

Abstract: A hinge mechanism and a clamshell device thereof are disclosed. A first cover body of the clamshell device can rotate with respect to a second cover body via the hinge mechanism. The hinge mechanism includes a bearing, a first rotating element, a second rotating element, and a base. The first rotating element includes a first jointed structure pivotally connected to the bearing. The second rotating element includes a protruding element and is pivotally connected to the first rotating element via a second jointed structure. The base includes a groove for the protruding element to slide in the groove. When the first rotating element and the second rotating element rotate, the protruding element moves from a first end to a second end of the groove to let the first jointed structure, second jointed structure and the protruding element form a three-point support structure.

Abstract: An electronic apparatus includes a shell base, a shell cover and a latch mechanism including an operating component, a pivot axle and a driving axle. The operating component has an access portion and two support portions extending through the shell cover. The pivot axle extends through the support portions, and has two end parts disposed at opposite lateral sides of the support portions and coupled rotatably to the shell cover. The driving axle extends through the support portions and is received in a limit groove of the shell base. The access portion is pivotable about the pivot axle from a closed position to an open position while the driving axle is positioned in the slide direction, thereby moving the pivot axle and the shell cover relative to the shell base.

Abstract: A tower pantry includes a guide mechanism mounted on a bottom of an opened space inside a refrigerating room and a basket attached to the guide mechanism and configured to move forward and backward on the first guide mechanism. The tower pantry also includes frames that are fastened to corners of the first basket and that vertically extend from the first basket. The tower pantry further includes a frame cover fastened on the frames and defining a space that accommodates a large-size beverage container.

Abstract: A lighting device may be provided that includes: a light emitting device; and a phosphor composition which is disposed on the light emitting device, wherein the phosphor composition includes phosphor and glass frit, wherein the phosphor includes yellow phosphor and red phosphor, and wherein a ratio of the yellow phosphor and the red phosphor is from 6:1 to 10:1.

Abstract: A lighting device includes: an LED module; a holding member which holds the LED module on its mount part, the mount part protruding in a direction of light emission from the LED module; and a light distribution lens which faces toward the mount part, the light distribution lens (i) receiving light emitted from the LED module and (ii) causing the light to travel to a first side to which the LED module emits the light and to a second side opposite to the first side.

Abstract: A flash discharge tube includes a cylindrical glass bulb filled with a rare gas; a pair of main electrodes sealed to both ends of the glass bulb via bead glasses; rough surfaces formed at least in the regions to which the bead glasses are welded, the regions being on the outer circumferential surfaces of the pair of main electrodes; and hard microparticles adhered to the rough surfaces. The hard microparticles are embedded in the rough surfaces. This increases the connection strength between the bead glasses and the pair of main electrodes, thereby ensuring the sealing performance between the bead glasses and the pair of main electrodes.

Abstract: A stroboscopic device includes a flash discharge tube with a conductive film on its outer periphery, a conductive reflector into which the flash discharge tube is inserted, and a heat-resistant conductive medium laminated on a part of the conductive film of the flash discharge tube. The reflector is electrically connected to the conductive film of the flash discharge tube via the conductive medium. This achieves the stroboscopic device with long service life and high reliability by preventing or suppressing occurrence of spark.

Abstract: A method for producing a reflecting layer-phosphor layer-covered LED includes a disposing step of disposing a reflecting layer at one side in a thickness direction of a support; a reflecting layer covering step of, after the disposing step, disposing an LED having a terminal at one surface thereof at the one side in the thickness direction of the support so as to allow the one surface of the LED to be covered with the reflecting layer; and a phosphor layer covering step of forming a phosphor layer so as to cover at least the other surface of the LED.

Abstract: A method for producing a phosphor layer-covered LED includes an LED disposing step of disposing an LED at one surface in a thickness direction of a support sheet; a layer disposing step of disposing a phosphor layer formed from a phosphor resin composition containing an active energy ray curable resin capable of being cured by application of an active energy ray and a phosphor at the one surface in the thickness direction of the support sheet so as to cover the LED; a curing step of applying an active energy ray to the phosphor layer to be cured; a cutting step of cutting the phosphor layer corresponding to the LED to produce a phosphor layer-covered LED including the LED and the phosphor layer covering the LED; and an LED peeling step of, after the cutting step, peeling the phosphor layer-covered LED from the support sheet.

Abstract: The purpose of the invention is to provide a resin, which has a high refractive index, excellent heat resistance and moldability, and high transparency, and is useful as a material for configuring optical devices, etc. The invention provides a resin comprising acyl hydrazone bonds and having a number average molecular weight of 500-500,000, wherein the acyl hydrazone bond equivalent is 100-4000.