Class / Patent application number | Description | Number of patent applications / Date published |
417352000 | Motor within rotary pumping member | 85 |
20090074594 | ARRANGEMENT WITH A VENTILATOR AND A PUMP - A compact arrangement features a fan ( | 03-19-2009 |
20100068081 | Axial fan - In an axial fan ( | 03-18-2010 |
20100098560 | Miniature Heat-Dissipating Fan - A miniature heat-dissipating fan includes a stator and a rotor. The stator has a first leakage flux absorber, a coil layer arranged on the first leakage flux absorber, and a hole. The coil layer has a plurality of coils and the hole passes through the first leakage flux absorber and the coil layer. The rotor has an impeller, a second leakage flux absorber and a permanent magnet. The second leakage flux absorber and the permanent magnet are attached to a bottom of the impeller, such that the rotor is rotatably coupled to the stator. Consequently, magnetic flux leakage under the stator is prevented to assure that electromagnetic interference will never be caused, and an overall axial thickness of the miniature heat-dissipating fan is reduced by the configuration of the stator. | 04-22-2010 |
20100111722 | INTEGRATED INTERNAL GEAR PUMP WITH AN ELECTRIC MOTOR - The invention relates to a rotor pump having an internally toothed outer ring and an externally toothed inner ring which is mounted therein and intermeshes therewith, wherein the outer ring and the inner ring are arranged axis-parallel to one another, and the axes of the outer ring and of the inner ring are at a distance from one another, and the outer ring is connected to a hollow shaft motor with a stator which is fitted with windings, and to a rotor which is rotatably mounted therein, characterized in that the outer ring forms the rotor of the hollow shaft motor. | 05-06-2010 |
20100303647 | CENTRIFUGAL FAN - A centrifugal fan includes a housing including a base, a side wall portion having an air outlet defined therein, and a cover arranged above the side wall portion and having an air inlet defined therein. A circuit board is arranged on an upper surface of the base, and includes a circuit board protruding portion arranged to protrude radially outward of the housing. At least one of electronic components to be mounted on the circuit board is arranged radially outward from an inner circumferential surface of the side wall portion. | 12-02-2010 |
20100310390 | FAN - A fan includes a frame, a rotor, a stator, a printed circuit board (PCB), and a water-proof structure. The frame includes a base, a first opening, and a second opening corresponding to the first opening. The base is located at the center of the frame near the second opening. The stator is disposed on the base of the frame. The rotor is disposed in the frame and coupled to the stator. The water-proof structure includes a protection cover and a seal ring. The protection cover is connected with the base, and the PCB is disposed in a closed space formed by the protection cover and the base. The protection cover has an annular wall and the seal ring is disposed around the outer surface of the annular wall of the protection cover. | 12-09-2010 |
20100316508 | Heat-Dissipating Fan - A heat-dissipating fan includes a shaft seat. A coil base is coupled to the shaft seat. The coil base includes a base portion and a coil unit coupled to the base portion. The base portion includes a connection port electrically connected to the coil unit. The connection port is connected to a drive circuit. An impeller includes a hub and a permanent magnet. A shaft is coupled to the hub and rotatably coupled to the shaft seat about an axis. The permanent magnet is coupled to the hub and aligned with the coil unit. Since the coil base does not include electronic elements of the drive circuit, the axial height of the heat-dissipating fan is reduced, and the structure of the heat-dissipating fan is simplified. | 12-16-2010 |
20100316509 | Miniature Fan - A miniature fan includes a housing having a mounting portion with a shaft seat. A base is mounted to the mounting portion of the housing. The base includes first and second faces spaced along an axis. An outer layer is provided on the first face of the base. A bottom layer is provided on the second face of the base. The base further includes a coil unit intermediate the outer layer and the bottom layer. The coil unit is electrically connected to a drive circuit. An impeller includes a shaft and a permanent magnet. The shaft is coupled to the shaft seat of the housing and rotatable about the axis. The permanent magnet is aligned with the coil unit. The axial height of the miniature fan is reduced, and the structure of the miniature fan is simplified. | 12-16-2010 |
20130280110 | ELECTRIC MACHINE, IN PARTICULAR OF A PUMP UNIT - An electric machine has in a machine housing, a stator and a rotor which is arranged on a motor shaft which is supported on a non-drive side in a bearing unit which has a ball bearing arrangement and is arranged within the machine housing in a radially elastic and axially displaceable manner. The electric machine is preferably coupled on the drive side without a bearing via a rigid shaft coupling to a work machine, in particular to a hydraulic pump. | 10-24-2013 |
20140037469 | BLOWER, ESPECIALLY COMBUSTION AIR BLOWER FOR A VEHICLE HEATER - A blower, especially combustion air blower for a vehicle heater, includes a blower housing ( | 02-06-2014 |
20140044571 | ELECTRIC WATER PUMP - An electric water pump may comprise an impeller rotated by a motor and a casing accommodating the impeller. The impeller may include a plurality of blades. The casing may include a first partial casing, a second partial casing and a tongue portion that extends along the rotation direction of the impeller. The tongue portion may include a first partial tongue portion. formed to be integrated with the first partial casing and a second partial tongue portion formed to be integrated with the second partial casing. A plurality of partial rear edges is disposed at a rear edge of the tongue portion in the rotation direction of the impeller. The plurality of partial rear edges may be positioned to be shifted from each other in the rotation direction of the impeller at a smaller interval than the interval of the blades. | 02-13-2014 |
20150326092 | MOTOR AND BLOWER - A motor includes a metal base plate and a resin holder extending upward from the base plate. The base plate includes a flat plate portion, a through hole passing through the flat plate portion, and a plurality of claw portions extending upward from an edge of the flat plate portion which includes the through hole. A portion of the holder is in the through hole. The holder covers a portion of each claw portion. The holder is thus engaged with each claw portion to prevent the holder from turning around a rotation axis and from coming off in an upward direction. The holder includes a gate mark near a lower surface of the flat plate portion and at a circumferential position between adjacent ones of the claw portions to make it easier for the resin to fill a cavity inside molds during a molding process. | 11-12-2015 |
417353000 | Armature within pumping member | 73 |
20080219864 | Centrifugal Drainage Pump - A pump assembly constructed to allow unloaded starting of the pump. The assembly includes a pump body, a permanent magnet rotor, a rotor shaft, a pump cover, a shaft sleeve and an impeller. The impeller includes a holding chamber for holding the shaft sleeve which is arranged proximate a center of the impeller. A stopping rib extends inwardly from an internal wall of the holding chamber of the impeller. The shaft sleeve includes a tubular body with a starting rib extending laterally from the body. During operation of the pump, the starting rib interferes with the stopping rib. A number of shock absorbing pads are disposed between the starting rib and the stopping rib and maintained thereat by a notch and ridge association that extends along each rib and pad. The pump includes a space that allows rotation of the starting rib relative to the stopping rib which provides unloaded starting of the pump. | 09-11-2008 |
20090142203 | Cooling Fan for a Motor Vehicle - A cooling fan ( | 06-04-2009 |
20090196770 | FAN - The present invention provides fan with an inrunner motor. The fan includes a fan frame, a rotor and a stator. The fan frame includes a base. The rotor includes a hub, a bushing and a magnetic member, wherein the magnetic member sleeves on the bushing. The stator is disposed on the base and coupled with the rotor, and the stator includes a shaft through the bushing, wherein an end of the shaft is fixed on the base. | 08-06-2009 |
20090246042 | FAN MOTOR - A fan motor may include a rotor part having a drive magnet, and a stator part having a drive coil and rotatably holding the rotor part. The rotor part may include a rotor yoke to which the drive magnet is fixed on an inner peripheral side of the rotor yoke, an impeller which is provided with a plurality of blades and which is disposed on an outer peripheral side of the rotor yoke, and a hub for fixing the impeller. The impeller is provided with a held part which is sandwiched between and held by the rotor yoke and the hub in an axial direction. The held part is abutted with an upper face of a bottom part of the rotor yoke and a lower face of a plate part of the hub, and the held part is held by the rotor yoke and the hub in the axial direction | 10-01-2009 |
20100119386 | MOTOR CONTROL SYSTEM - A control system for a fan includes a control housing that is external to a fan housing for the fan. At least one fan control module is within the control housing and communicates remotely with terminals within the fan housing via at least one wire. The at least one fan control module includes a detection module. The detection module detects induced voltages in at least one of a plurality of stator coils within the fan housing via the at least one wire without receiving signals from a sensor in the fan housing. | 05-13-2010 |
20110002796 | DC Motor with Cup-Shaped Stator and DC Fan Formed From The DC Motor - A DC motor includes a rotor, a cup-shaped stator, and a drive control unit. The cup-shaped stator includes a cylindrical winding portion surrounding the rotor. The cylindrical winding portion includes an inner periphery formed by at least one conductive wire and facing an outer periphery of a permanent magnet of the rotor with an air gap formed between the cylindrical winding portion and the rotor. A drive control unit is electrically connected to the cylindrical winding portion and a power source. The DC motor can be mounted in a compartment of a housing, and an impeller can be coupled to the shaft, forming a DC fan. The DC motor and the DC fan possess high control sensitivity and high control precision while having simplified structures to allow easy assembly. | 01-06-2011 |
20110058963 | Inner Rotor Type Motor and Heat Dissipating Fan Including the Inner Rotor Type Motor - An inner rotor type motor includes a base having a pivotal portion. A stator is mounted to the base and includes a body and a coil unit engaged with the body and surrounding a hole of the body. A rotor includes a rotatable member, a shaft, and a permanent magnet. The rotatable member includes an engaging portion and a sidewall provided along a periphery of the engaging portion extending into the hole of the stator. The shaft includes an end coupled to the engaging portion. The other end of the shaft is coupled to the pivotal portion. The permanent magnet is mounted to an outer periphery of the rotatable member and aligned with the coil unit. The axial length of the shaft without permanent magnet mounted thereto can be reduced, allowing reduction of axial heights of the motor and a heat dissipating fan utilizing the motor. | 03-10-2011 |
20110110800 | FAN AND THREE-PHASE MOTOR THEREOF - A three-phase motor includes a bearing structure, a rotor structure and a stator structure. The bearing structure has a bushing. The rotor structure has a shaft disposed in the bushing. The stator structure is disposed corresponding to the rotor structure and includes a first coil assembly and a second coil assembly overlapped on the first coil assembly. A fan with the motor is also disclosed. The present invention can increase the ratio of the effective coils of the stator structure, and further promote the operation efficiency of the three-phase motor and the fan with the three-phase motor. | 05-12-2011 |
20110116943 | STATOR STRUCTURE, AND MOTOR AND FAN ASSEMBLY USING SAME - A fan assembly includes a stator and a rotor. The stator is located in a fan frame and includes a base, at least one magnetizing winding provided on the base at a first relative position relative to a center of the base, and at least one magnetic conductive element provided on the base at a second relative position relative to the center of the base. The rotor is fixedly mounted in a fan hub, and has at least one positive pole and at least one negative pole, which are alternately arranged to constitute a magnetic induction face. The fan hub is rotatably connected to the fan frame via a shaft with the magnetic induction face facing toward the magnetizing winding and the magnetic conductive element on the base. With the above arrangements, the fan can have a largely reduced axial height for use in a limited space. | 05-19-2011 |
20110150674 | Operating Machine, in Particular a Motor-Driven Pump with an Axial Motor Arrangement - The present invention refers to an operating machine, in particular a motor-driven pump with an axial motor arrangement, comprising a rotor assembly ( | 06-23-2011 |
20110171048 | Magnetic Drive Pump Assembly with Integrated Motor - Embodiments of the invention provide a pump assembly and a method for assembly the pump assembly. The pump assembly includes a stator assembly, a lower pump housing, an upper pump housing, a rotor assembly, and an isolation cup. The method includes coupling the stator assembly to the lower pump housing, overmolding an overmold material over the stator assembly and the lower pump housing, positioning the isolation cup over the overmold, and positioning the rotor assembly inside the isolation cup. The method further includes placing the upper pump housing over the rotor assembly and coupling the upper pump housing to the lower pump housing. | 07-14-2011 |
20110229350 | BLOWER - A blower for use with a hand dryer and the like has a motor; an impeller driven by the motor; a diffuser for directing air from the impeller; and a housing accommodating the motor, the impeller and the diffuser. The motor has a rotor and a stator. The rotor has a shaft, a rotor core fixed to the shaft, a ring magnet fixed to the rotor core, and a protective sleeve surrounding the ring magnet. | 09-22-2011 |
20140003972 | FAN MOTOR STRUCTURE | 01-02-2014 |
20140119960 | METHOD FOR CORRECTION OF IMPELLER UNBALANCE OF A COOLING FAN - The described embodiments relate generally to cooling fans and more specifically to a method for balancing an impeller assembly included in a cooling fan. In one embodiment, a balancing ring with an asymmetric shape can be included in an impeller assembly and rotated to correct an unbalance in the impeller assembly. In another embodiment, a balancing ring assembly can be provided including an inner balancing ring and an outer balancing ring. The size and shape of the inner balancing ring can be modified to better correct any unbalance in the impeller assembly. | 05-01-2014 |
20140154108 | FAN MOTOR | 06-05-2014 |
417354000 | Stator within armature | 58 |
20080213103 | AXIAL FLOW FAN - An axial flow fan includes a housing defining an air inlet and an air outlet, a motor mounted to the housing and an impeller including blades. The housing includes an expanded portion adjacent the air outlet. In the expanded portion, the inner diameter of the housing increases towards the air outlet so that the expanded portion has an inner end where its diameter is smallest. The trailing edge of each blade is inclined, with respect to a plane perpendicular to the axis of rotation of the impeller, so as to extend toward the air inlet from a radially innermost end of the edge to a radially outermost end of the edge. The radially outermost end of the trailing edge is disposed closer to the air inlet than the inner end of the expanded portion, and the radially innermost end of the of the trailing edge is disposed closer to the air outlet than inner end of the expanded portion. | 09-04-2008 |
20080213104 | Motor - A motor includes a stator, a rotor, a top magnetic structure, and a bottom magnetic structure. The stator is disposed in a frame. The rotor is also disposed in the frame, corresponding to the stator. The rotor includes a shaft extending axially from the rotor. The bottom magnetic structure is at the bottom of the frame. The top magnetic structure is on the top of the frame. The top and bottom magnetic structures are opposite to each other in an axial direction. Magnetic attraction generated between the first magnetic structure and the shaft, and the second magnetic structure and the shaft positions the shaft therebetween such that the first magnetic structure, the second magnetic structure, and the shaft are coaxially aligned. | 09-04-2008 |
20080232983 | MOTOR, FAN AND MANUFACTURING METHOD OF THE SAME - A motor according to the present invention includes a boss portion | 09-25-2008 |
20080253907 | Cooling of Stator for Compressor - Compressor comprising a housing ( | 10-16-2008 |
20080267793 | COOLING FAN - A cooling fan includes a fan housing ( | 10-30-2008 |
20080298983 | FAN, MOTOR AND BEARING STRUCTURE THEREOF - A fan includes an impeller and a motor. The motor includes a rotor structure and a bearing structure. The motor is used to drive the impeller and the rotor structure has a shaft. The shaft is connected to the impeller. The bearing structure includes an oil-retaining bearing, a base and a sleeve. The oil-retaining bearing is used to dispose the shaft and the base is used to support the oil-retaining bearing. The sleeve includes at least one resisting part and a circular sidewall. The circular sidewall is covered the outside of the oil-retaining bearing. The resisting part is disposed on the top surface of the circular sidewall and extended to the center of the oil-retaining bearing. | 12-04-2008 |
20090035158 | COOLING FAN - A cooling fan includes a fan housing ( | 02-05-2009 |
20090047148 | Fan and bearing bracket thereof - 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. | 02-19-2009 |
20090104053 | Fan Unit and Methods of Forming Same - The described embodiments relate to fans units. One exemplary fan unit includes a housing supporting a motor. The fan unit also includes an impeller coupled to the motor and configured to be rotated by the motor. The impeller comprises at least a first structure configured to move air past the housing and at least one second different structure configured to force air into the housing | 04-23-2009 |
20090155097 | MINIATURE FAN - A miniature fan, particularly an axial fan, has a space-conserving structure which permits sophisticated electronic control circuits within a limited amount of space. It features an electronically commutated motor (ECM) including an internal stator | 06-18-2009 |
20090169399 | Ultra-thin miniature pump - An ultra-thin miniature pump applied to transport a fluid includes a main body, a rotor, and a stator. The main body includes a cover part and a bottom part. A joint surface between the cover part and the bottom part possesses an anti-leakage device, and a chamber including a suction port and a discharge port is formed inside the main body. The rotor disposed in the chamber includes a magnet set, an impeller, and a central shaft. The magnet set is connected on the surface of the impeller, and the impeller with the magnet set is aligned by the central shaft and rotates in coaxial. The stator disposed in the chamber includes a plurality of coils corresponding to the magnet set axially. The coils and the magnet set generate an axial magnetic flux to make the impeller rotate for transporting the fluid from the suction port to the discharge port. | 07-02-2009 |
20090185919 | FAN ASSEMBLY - A fan assembly including a rotation shaft, a permanent magnet having a receiving space therein and rotatable around a central axis of the rotation shaft, a fan including a hub having a receiving space therein with one side open and disposed outside the permanent magnet, the fan being rotatable around the central axis of the rotation shaft, a stator disposed inside the permanent magnet, and a blocking portion disposed at the open side of the hub in an axial direction, the combination configured to block an introduction of foreign materials into the fan assembly and to reduce the size of the fan assembly. | 07-23-2009 |
20090220360 | COOLING FAN - A cooling fan ( | 09-03-2009 |
20090246043 | FAN MOTOR - A fan motor may include a rotor part having a drive magnet and a stator part having a drive coil and rotatably holding the rotor part. The rotor part may include a rotor yoke to which the drive magnet is fixed on an inner peripheral side of the rotor yoke, an impeller which is provided with a plurality of blades and disposed on an outer peripheral side of the rotor yoke, and a plurality of ribs which are protruded from at least one of an inner peripheral face of the impeller and an outer peripheral face of the rotor yoke in a radial direction. The rotor yoke may be press-fitted to the impeller so that end parts in the radial direction of the ribs are abutted with at least one of the inner peripheral face of the impeller and the outer peripheral face of the rotor yoke, and gap spaces are formed between adjacent ribs of the plurality of the ribs and between the inner peripheral face of the impeller and the outer peripheral face of the rotor yoke. | 10-01-2009 |
20090285699 | MOTOR AND FAN APPARATUS HAVING THE MOTOR - An electric motor includes a stator portion, a rotor portion, and a bearing mechanism, wherein the rotor portion includes a rotor holder having a substantially cylindrical shape with a closed end, and a field magnet fixed to an inner circumference of the rotor holder; the stator portion includes a stator, a base portion to which the stator is fixed, and a magnetic member; and the magnetic member includes a cylindrical portion having a substantially cylindrical shape into which a lower end portion of an insulator of the stator is inserted, the lower end portion being a portion of an outer portion of the insulator and opposing the base portion, and a flat portion having a substantially annular shape which spreads outwardly in a radial direction from a lower edge of the cylindrical portion and opposes a lower edge of the field magnet. | 11-19-2009 |
20090290998 | ROTOR YOKE AND BALANCE ADJUSTING METHOD THEREOF - A rotor yoke includes a substantially flat or annular flat cover portion coaxial or substantially coaxial with a rotational axis and a substantially cylindrical side wall portion extending from an outer circumference of the cover portion in a parallel or substantially parallel relationship with the rotational axis. The rotor yoke further includes a substantially annular flange portion extending radially outwards from an open end of the side wall portion. The cover portion and the side wall portion define a cup portion whose center of gravity deviates from the rotational axis in a plane perpendicular or substantially perpendicular to the rotational axis, and the flange portion has an outer circumferential circle whose center deviates from the rotational axis in a direction opposite to the deviation direction of the center of gravity of the cup portion. | 11-26-2009 |
20100014995 | OUTER ROTOR TYPE FAN-MOTOR - An outer rotor type fan-motor includes: a rotational shaft; a bearing assembly that rotatably supports the rotational shaft; a stator installed at an outer side of the bearing assembly; a permanent magnet assembly that covers an outer side of the stator at a certain distance and is installed at the rotational shaft; and a fan that includes a shaft fixing part for fixing the rotational shaft, a hub for covering an outer side of the permanent magnet assembly at a certain distance and blades formed around the hub. An insulation space is formed between the permanent magnet assembly and the fan to prevent transfer of vibration and noise of the permanent magnet assembly to the fan, and vibration or noise of high frequency can be reduced. | 01-21-2010 |
20100054965 | BEARING STRUCTURE, MOTOR, AND FAN APPARATUS - A sleeve support portion is arranged to support a sleeve having a rotating shaft inserted therein such that the rotating shaft is rotatable. A plurality of ribs extending in an axial direction is provided on an inner surface of the sleeve support portion. The ribs are preferably spaced from each other in a circumferential direction centered on the rotating shaft, and arranged to make contact with at least a portion of the sleeve. The ribs include a plurality of types of ribs, each type of the ribs having a different axial position of an axial edge, on an axially opening portion side, of a contact surface thereof which is arranged to make contact with the sleeve. | 03-04-2010 |
20100080716 | ROTOR AND COOLING FAN HAVING THE SAME - A cooling fan includes a base, a stator mounted on the base and a rotor rotatablely supported by the stator. A central tube is formed at a central portion of the base for mounting the stator thereon. The rotor includes a hub, a hollow shell, a permanent magnet and a plurality of blades. The hub includes a top wall and a sidewall extending downwardly from an outer periphery of the top wall. The shell is attached to an inner surface of the sidewall of the hub. An annular bottom flange is formed at a bottom end of the shell. The permanent magnet is attached to an inner surface of the shell. The permanent magnet extends to abut directly against a bottom surface of the top wall of the hub. | 04-01-2010 |
20100098561 | Small Sized Heat Dissipating Fan - A small sized heat dissipating fan comprises a housing, a stator and a rotor. The housing includes a carrying base to hold the stator and rotor. The stator includes a magnetizing member having a plurality of coils, and a circuit board electrically connecting to the coils and having a driving circuit and a speed adjuster. The driving circuit, the speed adjuster and the coils electrically connect to each other. The rotor includes a shaft, an impeller fixed to one end of the shaft, and an annular magnet. The other end of the shaft extends through the magnetizing member. The shaft is rotatably coupled to the stator. The annular magnet is mounted to an inner periphery of the impeller and faces the magnetizing member of the stator. Consequently, by adjustment of resistance of the speed adjuster, the rated rotational speed of the heat dissipating fan can be changed. | 04-22-2010 |
20100104455 | STATOR AND COOLING FAN HAVING THE SAME - A cooling fan includes a fan housing, a stator mounted in the fan housing and a rotor rotatablely supported by the stator. The stator includes a stator core, an insulating frame attached to the stator core and stator coils wound on the insulating frame and around the stator core. The insulating frame electrically insulates the stator coils from the stator core. The stator core includes a main body and a plurality of claws. Every two neighboring claws define a receiving room therein. The insulating frame includes a bottom portion located at a bottom of the stator core and a plurality of flanges extending upwardly from the bottom portion into the receiving rooms of the stator core, respectively. A height of the flanges is no less than that of the stator core. | 04-29-2010 |
20100272586 | Dust-Proof and Anti-Oil Leakage Structure for a Fan - A dust-proof and anti-oil leakage structure for a fan comprises a blade assembly, an outer frame and a center stator. On a spindle between the blade assembly and the outer frame are installed in sequence an outer frame, an upper insulating cover, a silicon steel lamination, a lower insulating cover, a printed circuit board heat sink, an elastic gasket with a cross hole, a washer, a copper sleeve, a round elastic gasket. | 10-28-2010 |
20100329901 | Stator Device, Motor Constructed Thereby, and Heat-Dissipating Fan Including The Stator Device - A stator device includes a base having a shaft tube receiving a bearing. The shaft tube includes a top end having at least one groove. A stator unit is mounted around an outer periphery of the shaft tube. The stator unit includes at least one limiting member extending through the at least one groove into the shaft tube. The at least one limiting member prevents the bearing from disengaging from the shaft tube, enhancing assembling convenience. The stator can be coupled with a rotor to form a motor with enhanced assembling convenience and enhanced rotational stability. The base can be interconnected by connecting members to a housing having air inlet and outlet sides. Vanes can be formed on the hub of the rotor to form an impeller. Thus, a heat-dissipating fan can be formed from the stator device. | 12-30-2010 |
20110097221 | Motor and Heating Dissipating Fan Including Motor - A motor includes a balancing member having a surface. The surface has a shaft coupling portion and a magnetically conductive portion. A stator is coupled to the balancing member. A rotor includes a hub, a shaft, and a permanent magnet. The shaft and the permanent magnet are mounted inside the hub. The shaft is rotatably coupled to the shaft coupling portion. The permanent magnet includes a magnetically attracting face aligned with the magnetically conductive portion of the balancing member. The magnetically attracting face and the magnetically conductive portion attract each other to maintain stable rotation of the rotor while providing a simplified structure. The balancing member can be interconnected to a housing, and the hub can include a plurality of blades to form a heat dissipating fan. When the rotor rotates, air currents are drawn by the blades to a heat source for heat dissipating purposes. | 04-28-2011 |
20120171057 | Series-Connected Fan Unit - A series-connected fan unit includes a first fan frame, a second fan frame, a first motor, a second motor and two impellers. The first fan frame has a first base and a first positioning member coupled with the first base. The second fan frame is connected to the first fan frame in series and has a second base and a second positioning member coupled with the second base. The first motor is disposed in the first base and has a first circuit board coupled with the first positioning member. The second motor is disposed in the second base and has a second circuit board coupled with the second positioning member. The two impellers are respectively coupled with the first motor and second motor, wherein an insulation area is formed between the first circuit board and second circuit board. | 07-05-2012 |
20130189130 | FAN MOTOR STRUCTURE - A fan motor structure includes a fan frame, a rotor, at least one magnetic element, and a stator. The fan frame includes a frame body and a frame cover that are closed to each other to define a receiving space between them; and a shaft seat mounted on a bottom of the frame body to locate in the receiving space. The rotor includes a hub rotatably connected to the shaft seat, and a plurality of blades outward extended from an outer surface of the hub. The magnetic element is connected to each of the blades in a continuous manner or in a discontinuous manner. The stator is arranged in the receiving space between a bottom of the frame body and the blades. With the fan motor structure, a fan can have increased air intake, produce more air flows and be assembled with reduced time and labor. | 07-25-2013 |
20130323093 | MOTOR AND FAN - A base plate of a motor includes an inner bottom plate portion and an elevated portion. A land portion is arranged on an upper surface of a portion of a circuit board which overlaps with the inner bottom plate portion in a plan view, or on a portion of the circuit board which overlaps with the elevated portion in the plan view. A conducting wire extending from a coil is electrically connected to the land portion. This structure enables the conducting wire to be connected to the land portion on the circuit board without the conducting wire being drawn outward beyond an outer circumferential end portion of the base plate. The axial position of the conducting wire connected to the land portion and the axial position of the base plate at least partially overlap with each other. | 12-05-2013 |
20130323094 | FAN MOTOR - Disclosed is a fan motor including: a lower bracket having a lower protruding portion disposed at the center thereof and a space portion formed around the lower protruding portion; an upper bracket having an upper protruding portion disposed at the center thereof; a rotor disposed between the lower protruding portion and the upper protruding portion in such a manner as to be rotated together with a shaft; a stator core adapted to be surrounded with a lower insulator disposed on the top of the lower protruding portion and with an upper insulator disposed on the underside of the upper protruded portion; and a PCB cover adapted to be coupled under the lower insulator in such a manner as to be disposed into the space portion of the lower bracket and having a PCB insertion space portion formed at the inside thereof. | 12-05-2013 |
20140010682 | CENTRIFUGAL FAN - A centrifugal fan includes an impeller and a motor which rotates the impeller. The impeller includes an upper shroud, a lower shroud, and blades arranged therebetween. A rotor of the motor is attached to an attachment part of the lower shroud. In a section passing a rotary shaft of the impeller, the rotor and the attachment part are provided at a more outer side than a circle having a center on a line passing an upper end portion of an inlet opening at an inner side and parallel to the rotary shaft of the impeller, having a radius of 80% of a distance from the upper end portion of the inlet opening to a surface of the lower shroud below the upper end portion, and being tangent to the surface of the lower shroud or passing an end edge portion of the lower shroud. | 01-09-2014 |
20140086762 | Centrifugal Fan - A centrifugal fan includes a fan frame, a motor, an impeller and an axial positioning member. The fan frame includes a base plate portion, a cover plate portion, and a lateral wall portion arranged between the base plate portion and the cover plate portion. The cover plate portion includes an air inlet, and the lateral wall portion includes an air outlet. The motor is received in the fan frame. The impeller is rotatably coupled with the motor. The axial positioning member is arranged along a path surrounding the air inlet of the fan frame. The axial positioning member includes a coupling face and an abutting face opposite to the coupling face. The coupling face is coupled with the cover plate portion of the fan frame. The abutting face is spaced from the coupling face. | 03-27-2014 |
20140093405 | COMBINED AXLE STRUCTURE OF A STATOR ASSEMBLY FOR A RADIATOR FAN - A combined axle structure of a stator assembly for a radiator fan, the radiator fan having a pedestal, a stator assembly a rotor blade unit and a reverse axle. the combined axle structure includes a cup-like metal bearing block having bottom and annular walls, an axle socket, and a reverse axle having a bottom end and a reverse pin joint end protruded upwards. The pin joint end is used for alignment and assembly of the sleeving set at the hub center of the rotor blade unit. The bottom end of the reverse axle is tightly inserted and located into the axle socket, the bottom of the metal bearing block is tightly embedded and located onto the embedded locator set at the center of the stator assembly face of the pedestal, and the metal bearing block is located onto the insulated frame via the top end of the annular wall. | 04-03-2014 |
20140105763 | AXIAL-FLOW FAN - An axial-flow fan according to the present disclosure can increase the amount of the airflow and simultaneously reduce the noise level. A plurality of stationary blades | 04-17-2014 |
20140112805 | BLOWER - The blower comprises: a stator being provided in a case; a radial bearing being provided in the case; a rotor shaft being provided in the case and supported by the stator and the radial bearing; a rotor being integrated with the rotor shaft; and an impeller being integrated with the rotor shaft, the impeller sucking a fluid into the case from an axial direction and sending the same in the circumferential direction of the impeller. The impeller is attached to the rotor shaft to make a blade forming surface of the impeller face the rotor in the axial direction. A shaft end of the rotor shaft, which is located on the opposite side of the impeller, is supported by a thrust receiving member. | 04-24-2014 |
20140127049 | MOTOR - A motor includes a cylindrical or substantially cylindrical rotor unit configured to rotate about a rotation axis; a bearing unit arranged to rotatably support the rotor unit; a bearing holder arranged to hold the bearing unit; a disc-shaped or substantially disc-shaped base to which the bearing holder is fixed; a stator unit arranged inside the rotor unit and fixed to the bearing holder; and a circuit board arranged between the base and the stator unit and held by the stator unit. The circuit board is supported on the base through an insulative and flame-retardant vibration-preventing member. | 05-08-2014 |
20140134011 | COOLING FAN WITH ROTOR BLADE FLANGES FOR CONTROLLING ROTOR MOVEMENT - An exemplary cooling fan includes a housing having an air inlet and an air outlet opposite to the air inlet, a rotor received in the housing, and a stator received in the housing and rotatably supporting the rotor. The rotor includes a hub, blades extending outwardly from an outer periphery of the hub, and flanges slantwise extending from top edges of end portions of the blades. In operation of the cooling fan, air located at an outside of the cooling fan enters the air inlet and flows towards the blades and along the flanges thereby pressing the rotor towards a bottom of the stator along an axial direction of the cooling fan, and the air subsequently flows out of the cooling fan via the air outlet. | 05-15-2014 |
20140134012 | IMPELLER AND ELECTRIC BLOWER HAVING THE SAME - Disclosed herein is an impeller including: an upper surface, which is an air inlet portion; a lower surface, which is an air outlet portion; and blades formed between the upper and lower surfaces, wherein the upper and lower surfaces are provided with guide grooves for balancing of a motor. | 05-15-2014 |
20140154109 | FAN SYSTEM - A fan system in combination with a DC brushless motor. The DC brushless motor includes: a shaft, a base, a stator assembly, a rotor assembly, a control box including a second cavity, and a circuit board. The fan system includes: a blower housing, a wind wheel, a first mounting bracket, and a second mounting bracket. The first mounting bracket is arranged at a first air inlet. The outer side of the first mounting bracket is connected to the upper end surface. The inner side of the first mounting bracket is provided with a first bearing, and the other end of the shaft is disposed on the first bearing. The second mounting bracket is arranged at a second air inlet. The outer side of the second mounting bracket is connected to the lower end surface. | 06-05-2014 |
20140186198 | AXIAL FAN - There is provided with an axial fan comprising an impeller having a plurality of vanes; a motor rotating the impeller; a casing housing the impeller and the motor; a motor base mounting the motor; and a plurality of spokes connecting the motor base and the casing, wherein the motor base has a plurality of reinforcement ribs thereon, the plurality of reinforcement ribs being equal to or more than the plurality of spokes in number, and wherein the casing has a natural frequency equal to or higher than a frequency being transmitted to the casing from the motor when the motor is rotated at a rotation speed of 20000 rpm or more. | 07-03-2014 |
20140199189 | BEARING APPARATUS, MOTOR, AND BLOWER FAN - A bearing apparatus according to a preferred embodiment of the present invention includes a bearing portion having a bottom and being substantially cylindrical; a shaft inserted in the bearing portion, and arranged to rotate about a central axis relative to the bearing portion; a bearing opposing portion defined in one piece, arranged above the bearing portion, and arranged to hold an upper end portion of the shaft while covering an outer circumferential surface upper portion and an upper end surface of the shaft; and a cylindrical seal portion arranged to extend downward from the bearing opposing portion. An inner circumferential surface of the cylindrical seal portion and an outer circumferential surface of the bearing portion are arranged to together define a seal gap therebetween, the seal gap including a seal portion having a surface of a lubricating oil defined therein. | 07-17-2014 |
20140205476 | ELECTRIC FAN - 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. | 07-24-2014 |
20140212303 | BLOWER FAN - 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. | 07-31-2014 |
20140219834 | BLOWER FAN - 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. | 08-07-2014 |
20140248164 | STATOR MODULE WITH PROTECTION STRUCTURE AND A FAN THEREOF - 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. | 09-04-2014 |
20140248165 | PROTECTION STRUCTURE AND A FAN THEREOF - 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. | 09-04-2014 |
20140294620 | Cooling Fan Having a Radial-Air-Gap Motor and a Method for Determining the Dimensional Proportion of the Motor - 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. | 10-02-2014 |
20140294621 | FAN, MOTOR AND MANUFACTURING METHOD THEREOF - 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. | 10-02-2014 |
20140341760 | FAN STRUCTURE WITH EXTERNALLY CONNECTED CIRCUIT - 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. | 11-20-2014 |
20150023814 | BLOWER FAN - 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. | 01-22-2015 |
20150030474 | AXIAL FLOW FAN - 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. | 01-29-2015 |
20150044076 | FAN - 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. | 02-12-2015 |
20150064029 | AXIAL FLOW FAN MOTOR - An axial flow fan motor | 03-05-2015 |
20150098844 | FAN MODULE - 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. | 04-09-2015 |
20150110648 | Thin Type Fan - 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. | 04-23-2015 |
20150110649 | COOLING APPARATUS - 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. | 04-23-2015 |
20150301567 | THIN COOLING FAN - A thin cooling fan ( | 10-22-2015 |
20150308436 | THIN FAN STRUCTURE - A thin fan structure includes a case, a fan impeller, a circuit board, a silicon steel sheet and a winding assembly. The case has a receiving space and a bearing cup protruding into the receiving space. The bearing cup is formed with a bearing hole. The fan impeller has a hub section, multiple blades and a shaft extending from a center of the hub section. A magnetic member is annularly disposed on inner circumference of the hub section. The circuit board is disposed in the receiving space. The silicon steel sheet disposed on the circuit board has a base section and multiple first magnetic conductive sections, which together define a receiving space. The winding assembly is fixedly disposed in the receiving space. The winding assembly has a bottom section attached to the base section and a side section attached to the first magnetic conductive sections. | 10-29-2015 |
20160010655 | FAN IMPELLER STRUCTURE AND COOLING FAN THEREOF | 01-14-2016 |
20190145429 | AXIAL FAN | 05-16-2019 |