Abstract: A motor includes a casing having a cavity, a stator configured to be attached to an inside of the cavity, an elastic cone configured to be attached to a first end of the casing, a rigid cone configured to be attached to a second end of the casing that is opposite to the first end, a non-metallic part configured to be attached to the elastic cone and the rigid cone, and a rotor provided inside the cavity and configured to rotate inside the stator. The casing, the elastic cone, the rigid cone, and the non-metallic part form a hermetic enclosure in which the entire stator is enclosed and the hermetic enclosure is configured to hold a cooling fluid that cools the stator and also to prevent the cooling fluid to reach the rotor.

Abstract: Disclosed herein is a switched reluctance motor assembly capable of reducing an assembling error that is generated according to separate assembling and improving precision of assembling of bearing parts by forming a diffuser part and a motor housing integrally with each other. In the switched reluctance motor assembly, the diffuser is coupled integrally with the housing, such that a separate member for fixing the diffuser is omitted, thereby making it possible to reduce vibration according to driving of a motor and noise according to the vibration.

Abstract: A ceiling fan includes an outer rotor motor having a rotor connected to a rotating disc and a stator connected with an inner tube. An outer tube is fitted around the inner tube, having one end connected with the rotating disc, and a plurality of elastic buffer pieces are positioned between the outer tube and the rotating disc. By so designing, when the rotor is rotated to actuate the rotating disc together with the outer tube to rotate, the elastic buffer pieces can absorb the vibration produced by operation of the outer rotor motor and also correct bias swinging of the outer tube through their elastic deformation to enable the outer tube to be rotated stably.

Abstract: An engine pump assembly (1), particularly a main coolant pump, composed of a housing (4) of a rotary pump with delivery elements arranged therein, a heat barrier part (6), a motor part (5) which drives the delivery elements, and force transmitting connecting elements (7) between a housing flange (8) of the housing (4) of the rotary pump and a flange (21) of the engine part (5). For faster and more reliable assembly and disassembly, the housing flange (8) is provided with receptacles (12) over at least half of its periphery for the arrangement of screw heads (13, 15) of the connecting elements (7), which screw heads (13, 15) are held in a bayonet-like manner in the receptacles (12).

Abstract: Provided is a fluid pump including: a motor unit that comprises a stator, a rotor, and a rotational shaft on which the rotor is fixed, to thus generate a rotating torque; a pump unit that is placed separately from the motor unit on one side of the motor unit, and that comprises an impeller for pumping fluid: a first power transmission unit that is fixed to the rotor and is rotated with the rotor, and that comprises a first magnet; and a second power transmission unit that is fixed to the impeller and that comprises a second magnet that is disposed facing the first magnet and has opposite polarities to those of the first magnet. Accordingly, fluid can he fundamentally prevented from being introduced into the inside of the motor unit.

Abstract: An electrical submersible pumping (ESP) system for use in a wellbore having a pressure equalization system that employs modules with a bellows. The bellows axially expands and contracts in response to pressure fluctuations encountered in the wellbore. The modules are attachable in series on a lower end of a motor of the ESP to form the string, where the string can range from a single module to a multiplicity of modules, depending on the application. The bellows has a conduit axially inserted through the bellows that includes an umbilical and has an end in pressure communication with the motor.

Abstract: A fuel pump may include a motor section comprising a rotor and a stator. One of the rotor and the stator may have at least a pair of permanent magnet parts disposed along a first circumferential surface at an interval in a circumferential direction, and at least two magnetic material parts disposed between ends of adjacent permanent magnet parts. The other one of the rotor and the stator may have a first yoke disposed so as to face the permanent magnet parts, wherein a plurality of slots are formed on the first yoke at an interval in the circumferential direction. A surface facing the slots of the magnetic material parts may be shifted, in at least a partial range in the circumferential direction including a permanent magnet part side end where a polarity of a first circumferential surface side is a north pole, from the first circumferential surface in a direction along which a distance to the slots increases.

Abstract: The present invention relates to an electric water pump having improved performance and durability. The electric water pump may include a stator generating a magnetic field according to a control signal, a rotor rotated by the magnetic field, a pump cover having an inlet and an outlet, a body having a front surface forming a volute chamber, a stator chamber, and a rotor chamber, the stator mounted in the stator chamber and the rotor mounted in the rotor chamber, a shaft having a central axis, fixed to the rotor and mounted in the rotor chamber, and an impeller fixed to the shaft so as to rotate together with the shaft, pressurizing the coolant having flowed in through the inlet, and mounted in the volute chamber, wherein the rotor chamber is fluidly connected to the volute chamber, and the stator chamber is fluidly closed and sealed from the rotor chamber.

Abstract: A heat circulation pump includes a pump housing (1) with a pump impeller driven by an electric motor. The electric motor is arranged in a motor housing (8) connected to the pump housing (1). A plastic terminal box (12) is fixed to the motor housing (8) and houses electric and/or electronic components of the engine control and electrically connects the motor, a ground contact arranged on the motor housing (8), and a plug and or a socket (34) arranged on the outside of the terminal box (12). The ground contact is connected in an electrically conductive manner to a ground contact of the plug or socket (34) and to at least one conductor inside the terminal box (12). The electric connection between the ground contact arranged on the motor housing (8) and the ground contact of the plug or socket (34) is arranged outside of the terminal box (12).

Abstract: A brushless DC motor including a rotor, a magnet provided to the rotor, a pair of bearings to rotatably support the rotor, a stator assembly that at least partly surrounds the rotor and magnet thereof and adapted to control movement of the rotor, and a bearing tube having an exterior surface and an interior surface that defines a tube interior. The stator assembly is provided along the exterior surface of the tube and the bearings are provided along the interior surface of the tube to support the rotor and magnet within the tube interior. The motor has sample application for use in PAP devices for delivery of positive airway pressure therapy for users or patients.

Abstract: A blower assembly having a blower housing, an impeller fan within the blower housing, the impeller fan being adapted for rotation about an axis and having a plurality of impeller blades and having an axial length, a motor having a stator and a rotor, the motor having an axial length, the rotor being configured to rotate relative to the stator for rotation about the axis, the rotor and the impeller fan being coupled so that the impeller fan rotates with the rotor about the axis, wherein a ratio of the axial length of the motor to the axial length of the impeller fan is less than 0.3, and a motor support bracket operatively securing the stator to one of the first and second side walls of the blower housing.

Abstract: A fuel pump, for an internal combustion engine, has a housing accommodating a pump and a motor. The motor is arranged to drive the pump so as to pump fuel through the housing. The motor has a wound stator having a plurality of inwardly directed teeth about which a stator winding is wound, and a radially outer surface in contact with an inner surface of the housing. One or more pathways are formed between the inner surface of the housing and the outer surface of the stator, for the flow of fuel there through. Each pathway is formed by an axially extending recess formed in the outer surface of the stator and aligned with a selected tooth of the stator.

Abstract: A motor-driven compressor includes a housing, a rotary shaft, a compression mechanism and an electric motor. The housing includes a suction port and a discharge port. The compression mechanism is disposed in the housing and compresses refrigerant flowed through the suction port into the compression mechanism and discharges the refrigerant through the discharge port. The electric motor is disposed in the housing and drives the rotary shaft to rotate to drive the compression mechanism. The electric motor includes a rotor fixedly mounted on the rotary shaft and a stator fixed to the housing. The rotor includes a permanent magnet and a compressor interior environment improvement agent containing at least one of an absorbent for absorbing moisture and a neutralizer for neutralizing acid.

Abstract: A motor stator includes an insulating frame having a plurality of projecting rods, an induction unit, and a plurality of conductive members. The induction unit includes an induction circuit board, a plurality of induction coils embedded within the induction circuit board, and a plurality of coil windings wound respectively on the projecting rods. The conductive members extend through the insulating frame and the induction circuit board for establishing an electrical connection between each of the induction coils and a corresponding one of the coil windings. The turn numbers of the coil windings are not limited by the area and thickness of the induction circuit board, and can be increased. Alternatively, the coil windings may be positioned to increase the magnetic pole slot number when energized. As such, a driving force of the motor stator can be increased.

Abstract: A pump (22) includes a pump casing (34) having a pump chamber (40), an impeller (30) received in the pump chamber (40), an electric motor (28) for driving the impeller (30), a detector (96) being configured for detecting a load on the pump (22), and a speed regulator (98) coupled to the detector. The speed regulator (98) is configured for decreasing the speed of the motor (28) to a speed greater than zero in response to the detector (96) detecting an unload condition of the drain pump (22).

Abstract: A heat circulation pump includes a pump housing (1) with a pump impeller arranged therein which is driven by an electric motor arranged in a motor housing (8) which axially connects to the pump housing (1). The heat circulation pump also includes a terminal box (12) which is axially connected to the motor housing (8) in order to receive electric and/or electronic components of the engine control. A plug or socket (34) of an electric plug connection is arranged on the outside of the terminal box (12) for the electric connection. The plug or socket (34) is/are axially offset with respect to the terminal box (12) and is/are arranged adjacent to the motor housing (8).

Abstract: A centrifugal pump includes a pump unit and a drive unit. The pump unit includes a volute and an impeller disposed in the volute. The drive unit includes a stator and a rotor having a shaft. The volute includes an inlet, an outlet and a chamber in communication with the inlet and outlet. The shaft of the rotor extends into the chamber of the volute and the impeller is attached to and driven by the shaft. The volute further includes a transition part connected between the outlet and the chamber and communicating the outlet with the chamber. The axis of the transition part is angled to the axis of the outlet. The transition part is configured to improve the effect of fluid turbulence to thereby reduce noise, especially in the air-water stage.

Abstract: According to one embodiment, a motor stator includes a substantially cylindrical stator iron core and insulators. The stator iron core includes a yoke, teeth, and U-shaped grooves. The U-shaped grooves are formed on the circumference of the yoke in the axial direction. The insulators each include an outer circumference wall, hoisting drums, inner guards, and at least three engagement claws. The engagement claws are located spaced apart in the circumferential direction on the outside of the outer circumference wall and fitted in axial-direction ends of the U-shaped grooves, respectively. One of the engagement claws is arranged such that a first circumferential-direction side portion of the engagement claw is in contact with a first side wall of one U-shaped groove. Another is arranged such that a second circumferential-direction side portion of the engagement claw is in contact with a second side wall of another U-shaped groove.

Abstract: A micro cooling fan comprises a housing and a main circuit board. The housing has an accommodation space, a first inner surface, and a gap. The gap is in communication with the accommodation space, and two opposite side edges of the gap have a groove respectively. The main circuit board comprises a first circuit board and a second circuit board. The first circuit board has a stator, the second circuit board has a driving circuit, and the stator is electrically connected to the driving circuit. The first circuit board is disposed on the first inner surface, and the second circuit board is embedded into the grooves and blocks the gap.

Abstract: An electric machine comprising a stator having a stator winding, a housing accommodating the stator, a rotor, and an air gap having a generally cylindrical configuration. A plurality of circumferentially distributed, radial, first cooling gas ducts are provided in a stator core. Jets of cooling gas are directed to regions of an end winding which are relatively distant from the stator core, in order to achieve impingement cooling thereof. Flows of cooling gas are directed to portions of the end winding which are between the impingement cooled regions of the end winding and the respective front face of the stator core.

Abstract: The present invention discloses structure improvement of a canned motor pump, and more particular to a canned motor pump which is a plastic pump or a pump with plastic lining to transfer chemical liquids, wherein a support structure of a rotor system is improved to provide a high-rigidity cantilever stationary shaft to satisfy all kinds of requirements.

Abstract: A motor includes a stator and a rotor disposed in the stator. The stator includes a housing and a plurality of magnets attached to an inner surface of the housing. The rotor includes a shaft, with a rotor core and a commutator. Windings are wound on the rotor core and terminated on the commutator. The rotor core includes a plurality of teeth extending outwardly about which the windings are wound. Radially outer surfaces of the teeth are coated with a Zn-Al film.

Abstract: A compressor (22) has a housing assembly (40) with a suction port (24), a discharge port (26), and a motor compartment (60). An electric motor (42) has a stator (62) within the motor compartment and a rotor (64) within the stator. The rotor is mounted for rotation about a rotor axis (500). One or more working elements (44) are coupled to the rotor to be driven by the rotor in at least a first condition so as to draw fluid in through the suction port and discharge the fluid from the discharge port. A gap (80) is between the rotor and stator. The gap is isolated (140, 142) from an outer portion (144) of the motor compartment. The outer portion is exposed to the stator. One or more passages (150) are positioned to draw fluid from the gap in the first condition.

Abstract: Various “contactless” bearing mechanisms including hydrodynamic and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. In one embodiment, a pump apparatus includes a pump housing defining a pumping chamber. The housing has a spindle extending into the pumping chamber. A spindle magnet assembly includes first and second magnets disposed within the spindle. The first and second magnets are arranged proximate each other with their respective magnetic vectors opposing each other. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood.

Abstract: A fan includes an impeller and an inner rotor motor. The inner rotor motor connects to the impeller and drives it to rotate. The inner rotor motor includes a bushing, a shaft, a magnetic conducting shell, a magnetic element and a stator. The shaft passes through the bushing and is coupled to the impeller. The magnetic conducting shell is coupled to the shaft and telescoped to the bushing. The magnetic element is disposed around outside of the magnetic conducting shell. The stator is disposed around outside of the magnetic element.

Abstract: A fluid feeder which is capable of removing foreign matter on the surface of a rotor is provided. The fluid feeder is provided with a rotor housing body on which a rotor housing chamber for housing a rotor of a canned electric motor is installed and a pump casing in which a fluid feeding chamber hermetically installed so as to be connected consecutively to the rotor housing chamber is installed and an impeller is housed inside the fluid feeding chamber. Further, a hollow pipe body is used to connect the vicinity of a side face of the fluid feeding chamber with an upper end of the rotor housing chamber.

Abstract: A blower fan includes a rotor arranged to rotate about a rotation axis together with a shaft, a stator arranged radially outward of the rotor and opposite the rotor, a motor support portion arranged to support the shaft through a bearing such that the shaft is rotatable, and an impeller arranged to rotate together with the shaft. The motor support portion includes a base portion, a bearing support portion arranged to support the bearing, and a stator support portion arranged to support the stator. Each of at least a portion of the bearing support portion which is in contact with the bearing and at least a portion of the stator support portion which is in contact with the stator is defined by a metallic member coupled to the base portion, which is made of a resin, preferably through, for example, insert molding.

Abstract: A pump assembly with an electric motor includes a stator having an iron core (16) and windings arranged thereon and being arranged in a stator housing surrounding the electric motor to the outside. The stator housing (6) is formed as a cast component, into which the iron core (16) is cast, and the windings have been deposited on the iron core (16) after the casting of the iron core (16) into the stator housing (6).

Abstract: An electric water pump apparatus may include a body, a stator disposed in the body, a rotor in the stator, a pump cover having an inlet and an outlet, wherein a front surface of the body and the pump cover form a volute chamber, wherein a stator chamber is formed at an outer portion in the body in a radial direction and the stator is mounted in the stator chamber, and wherein a rotor chamber is formed at an inner portion in the body and the rotor is mounted in the rotor chamber, a shaft rotatably coupled to the front surface and fixed into the rotor, and an impeller fixed to a front portion of the shaft, wherein the shaft includes a first shaft connecting the impeller and a front end portion of the rotor and a second shaft connected to a rear end portion of the rotor along the central axis of the shaft.

Abstract: A heat-dissipating fan assembly is provided. The heat-dissipating fan includes a base, a axial tube, at least one coil mounted on the base, and an impeller module having an impeller, a plurality of vanes disposed on the circumferential surface of the impeller, a shaft, and a permanent magnet. The axial tube is mounted on the base, and made of a permeability material. The shaft and the permanent magnet are disposed on the same surface of the impeller. The shaft is inserted in conjunction with the axial tube. The at least one coil is used to electrically connect with a power to interact with the permanent magnet, which in turns rotates the impeller module.

Abstract: This invention relates to a pump system, especially for boosting the flow rate of a fluid through a pipe (1, 2, 6), comprising a pump positioned in a pump chamber (10) for pumping at a chosen rate, and a motor driving said pump, the motor being positioned in a chamber (9) being provided with a pressurized fluid, the pressure of which being higher than the pressure in the pump chamber, the motor and the pump chambers being separated by a seal (8), the seal allowing a leakage of said pressurized fluid between them, wherein the pressurized fluid is acceptable to the pump environment and the system comprises a discharge branch line (3) coupled to the pipe(6) and positioned downstream from said pump, the discharge branch line having an outlet into the environment.

Abstract: A fan motor includes a static body, a rotating body that has a shaft, a hub encircling a first end of the shaft and joined with the first end, and a blade joined around an outer periphery of the hub, a sleeve that retains thereinside a portion of the shaft at a second end side, a rotating flange which encircles the sleeve and which rotates together with the hub, a static flange which is disposed in an area at a side of the first end of the shaft, and which is joined with the static body so as to overlap the rotating flange in a radial direction, a dynamic pressure generating groove provided in either one of surfaces of the static body and the rotating body facing with each other in the axial direction, and a lubricant present between the static body and the rotating body.

Abstract: An impeller includes a metal base plate, a shaft and a plurality of plastic blades. The metal base plate includes a shaft-coupling portion, a peripheral portion, and first and second surfaces. The first surface faces away from the second surface in a first direction, the second surface faces away from the first surface in a second direction. The metal base plate is flat between the shaft-coupling portion and the peripheral portion. The first surface has a permanent magnet. The shaft has a fixing end coupled with the shaft-coupling portion, as well as a free end extending axially in the first direction. Each plastic blade has a coupling portion coupled with the peripheral portion, as well as an air-driving portion axially extending in the second direction. The impeller may be rotatably coupled with a driving module. The driving module is installed in a fan frame to form an advection fan.

Abstract: A submersible pump capable of providing low voltage power supply comprises a pump body and a filter cover connected to the pump body; a stator containing cavity and a rotor containing cavity is provided in the pump body; the outside of the rotor containing cavity is provided with an impeller room, and the upside of the impeller room is provided with a water outlet; a silicon steel sheet group of a stator and a stator coil are encapsulated in the stator containing cavity in the pump body; a permanent magnet rotor is fixed in the rotor containing cavity in the pump body via a rotor shaft; an impeller at one end of the permanent magnet rotor is located in the impeller room; it also comprises an internal transformer; the internal transformer is provided with a low voltage coil, and the stator coil acting as a high voltage coil, and the two coils are located at the silicon steel sheet group of the stator; the low voltage coil provides AC low voltage power supply to the outside.

Abstract: Apparatus and method for removing particles from an air source. The air source is passed through multiple rows (R65) of cyclone separators (65), removing particles from the air to create cleaned air and passing the particles through openings (112) in the separators 65 so that the particles fall to a surface (42) below the openings. The cleaned air is directed into a first chamber region (73) above the cyclone separators (65) and moved along a second chamber region (76) positioned between two of the rows (R65) toward a duct (85) for passage out to a compressor (22).

Abstract: A fan with damper includes a motor and a fan located in a duct ventilation passage. The motor is connected with the fan to drive the fan and move air or other gases through the duct. The motor has a drive shaft that slides along its length between on and off positions. A damper is also located in the passage, is operatively connected with the drive shaft such that the damper moves to an open position when the drive shaft slides to its on position and the damper moves to a closed position when the drive shaft slides to its off position.

Abstract: A ceiling fan motor includes a stationary unit, a rotary unit, and a bearing unit, wherein the stationary unit includes a shaft arranged along a center axis extending in an up-down direction, and an armature directly or indirectly fixed to the shaft. The rotary unit includes a rotor holder arranged to cover the armature from above and below, the rotor holder including an upper rotor holder member and a lower rotor holder member, and a rotor annularly arranged on an inner circumferential surface of the rotor holder in a radially opposing relationship with the armature. The bearing unit rotatably supports the rotor holder with respect to the armature, and includes an upper bearing member arranged between the shaft and the rotor holder at an axial upper side of the armature, and a lower bearing member arranged between the shaft and the rotor holder at a lower side of the armature.

Abstract: An alternating current-to-direct current (AC-to-DC) power supply has a first stage providing a first DC voltage and a second stage providing a second DC voltage. The AC-to-DC power supply has a first efficiency at the first stage and a second efficiency at the second stage that is less than the first efficiency. The second DC voltage is also less than the first DC voltage. A blower is electrically connected to the first stage of the AC-to-DC power supply to receive the first DC voltage from the AC-to-DC power supply to power the blower. Electrical connection of the blower to the first stage of the AC-to-DC power supply instead of to the second stage of the AC-to-DC power supply wastes less power and is more efficient.

Abstract: An impeller is provided that may be used in compressors or turbines. In another aspect of the present invention, a fiber or a bundle of fibers is woven to form at least two blades of an impeller. Yet another aspect of the present invention employs a peripheral component woven around impeller blades. An additional conductive fiber or bundle of fibers is woven into the impeller in a further aspect of the present invention. Moreover, an aspect of the present invention provides a chilling system that includes at least one compressor, at least one wave rotor, and a refrigerant.

Abstract: Rotary motion devices (10) are provided. In one embodiment, the rotary motion devices (10) may comprise: a mass (12); a circumferential component (14); a plurality of spokes (16) connecting the mass (12) to the circumferential component (14), at least one of the spokes (16) comprising an electroactive polymer, wherein: the at least one spoke (16) has at least one input electrode and is configured to deflect upon application of an electrical potential across the at least one input electrode, and the rotary motion device (10) is configured such that deflection of the at least one spoke (16) causes the mass (12) to move, thereby causing the rotary motion device (10) to become off balance with respect to gravity, and rotate.

Abstract: In a motor, a bearing housing is made of a thermoplastic resin material. A bottom portion of the bearing housing includes a first large diameter portion, a small diameter portion, and a second large diameter portion. The first large diameter portion of the bearing housing is arranged on an upper surface of the base. An outer circumferential surface of the small diameter portion of the bearing housing is arranged radially opposite a side peripheral surface of a base hole. The second large diameter portion is arranged to be in direct contact with a lower surface of the base through caulking.

Abstract: A metal pump housing includes a shaft support hole for supporting a middle part of a rotary shaft. The rotary shaft includes a first end on which a pump operating portion is provided and a second end on which a motor rotor is provided. A metal motor case is fixed to a part of the pump housing that is at a side of the second end. The motor case accommodates a motor section including a motor stator and a motor rotor. A plastic circuit case member is fixed to a part of the motor case that is opposite to the part to which the pump housing is fixed. A circuit substrate for controlling the motor section is fixed to the circuit case member and is separate from the motor case.

Abstract: A motor may comprise a rotor and a stator. A first core of the stator may comprise three pieces of first partial cores and a first connecting portion connecting the first partial cores adjacent to one another. The first partial core may comprise a tooth part disposed at a front edge portion and a contacting part disposed at a rear edge portion. The contacting part may contact the adjacent first partial core. The first core may be formed such that a state of the contacting parts changes from a separated state in which the contacting parts are separated from each other to a contacting state in which the contacting parts of the adjacent first partial cores are contacting each other.

Abstract: An expansion chamber to serve ESP equipment installed on the seabed located in either a caisson or a conduit on a skid. The expansion chamber provides an external reservoir for expansion and contraction of motor oil in the ESP equipment. During operation of an ESP, the heat generated in the motor raises the temperature of the motor oil, causing it to expand. The expansion chamber is connected to the ESP equipment via oil lines that allow oil to expand into the expansion chamber when the temperature of the motor oil increases. The expansion chamber has a movable barrier therein that defines primary and secondary chamber. Oil communicates with the primary chamber. Formation fluid within the conduit surrounding the motor communicates with the secondary chamber.

Abstract: In an axial fan including a motor, a substrate that connects ends of a plurality of coils is disposed at a position axially under a bottom portion of a case with an axial gap therebetween. A spacer is interposed between the substrate and the bottom portion, and the substrate is fixed to the spacer. A plurality of through holes provided in the bottom portion are disposed in axial alignment with a plurality of through holes provided in the spacer. An air flow produced by rotation of an impeller at least partially passes through the interior of the case to be discharged to outside of the case through the through holes in the bottom portion so that heat generated inside the motor can be efficiently transferred to outside of the case.

Abstract: A waterproof and dustproof fan motor structure includes a base, an annular enclosure, and a stator assembly. The base has a vertically forward extended bearing cup; the annular enclosure internally defines a closed annular space and is externally fitted around the bearing cup; and the stator assembly is disposed in the closed annular space of the enclosure. The waterproof and dustproof fan motor structure can be assembled to a frame and a rotor assembly to complete a fan. With the stator assembly disposed in the closed annular space of the enclosure, the fan motor is protected against damage caused by moisture and dust, and the stator assembly can be easily removed from the closed annular space for necessary maintenance and repair to thereby reduce the bad yield and the manufacturing cost of fan and fan motor.

Abstract: An advection fan includes a housing having a metal housing base and a closure member. A lateral wall is arranged between the metal housing base and the closure member and includes an air inlet and an air outlet. A horizontal air passage is defined between the metal housing base and the closure member. The metal housing base includes an engagement section. A stator includes a coil unit embedded in or abutting and attached to the engagement section of the metal housing base. The coil unit abuts the engagement face of the metal housing base. The coil unit includes a substrate and at least one coil formed on a surface of the substrate by printing circuit or electroforming process. An impeller is rotatably coupled to the shaft tube of the stator. A gap is formed between the impeller and the coil unit of the stator.

Abstract: A fan motor includes a motor; an impeller; a motor control board; an AC/DC converter board; electronic components mounted on the AC/DC converter board; and a housing arranged to contain the motor, the impeller, the motor control board, and the AC/DC converter board. The housing includes a base portion arranged to hold a stationary portion of the motor on an axially upper side thereof; and a case portion arranged to extend to assume a tubular shape on an axially lower side of the base portion. The AC/DC converter board is arranged in an interior space of the case portion. At least a portion of the interior space is filled with a resin material. Surfaces of the AC/DC converter board and the electronic components are covered with the resin material. The fan motor further includes a projecting portion arranged to project into the interior space.

Abstract: A fan unit for a heat exchanger, particularly for a motor vehicle, has a support structure or cowling having a main aperture forming a passage for a flow of air, and an electric fan having an impeller and an electric motor. A flexible electrical cable connects the motor to a source of supply voltage and/or to an associated control circuit. The cable has a terminal electrical connector having a body with one end connected to the cable, and another end provided with at least one connection aperture. A seat is provided in the support structure or cowling for receiving and retaining the terminal electrical connector, and for covering the at least one connection aperture of the connector.

Abstract: An air circulator that includes an electronically commuted motor that is devoid of a transformer and utilizes line voltage as the signal voltage. The motor includes a rotatable blade assembly having at least one blade, wherein the blade assembly is connected to the electronically commuted motor, a housing that is operatively connected to the electronically commuted motor and having a line voltage input, and a switch that is secured to the housing and electrically connected to a signal voltage input of the electronically commuted motor and the line voltage input.