192results about How to "Reduce axial height" patented technology

A motor includes a stator and a bus bar supported axially above the stator. The bus bar includes a concave portion arranged in a lower surface thereof facing toward coils of the stator. In a gap defined between the coil and the concave portion, a portion of the wire extracted from the coil and wound in the circumferential direction (i.e., a crossover wire portion) is accommodated. The bus bar includes a wire-positioning hole through which the wire is led to a terminal to be connected with the wire.

A motor includes a plurality of bus wires of a common phase which are put together before being guided in a common passage to minimize the space arranged to guide the bus wires. Also, the bus wires of a common phase are easily insulated from those of different phases, and an axial height of the motor is reduced. Further, a radial width necessary to guide the bus wires is reduced, and an axial height of the motor including a sensor portion which detects a rotary position of the motor is reduced. Also, the bus wires are easily extended from the armature, and an amount of work required to connect the bus wires and the terminals is reduced. Furthermore, the connection terminal portion does not interfere with the bus wires when they are being guided.

The invention provides a washing device comprising an outer barrel, an inner barrel and a motor. The outer barrel, the inner barrel and the motor are arranged coaxially and vertically, the center of the bottom of the outer barrel is recessed from exterior to interior to form an inverted first groove, the motor is at least partly arranged in the first groove, the center of the bottom of the inner barrel is recessed from exterior to interior to form an inverted second groove, the first groove is at least partly arranged in the second groove. The motor is at least partly arranged in the first groove, the first groove is at least partly arranged in the second groove which is formed in a way that the bottom of the inner barrel protrudes upwards, on the premise that the washing capacity of the inner barrel is not reduced, the whole height of the washing device is reduced. At the same time, the inner barrel of the washing device is inside provided with a plurality of brushes which can move freely, the brushes move along with the rotation of the inner barrel, and brush goods in the inner barrel. The washing device is simple in structure and substantial in effect, and is suitable for promotion and application.

A fuel pump assembly includes a fuel pump, and an electric motor for rotatably driving the fuel pump and including a motor armature and a commutator positioned between the motor armature and the fuel pump.

An ac generator for a vehicle is constituted so that the thickness in insulation layers of conductors in the slot-in portions located in the slot is smaller than the other to permit a metal portion of conductors to be much larger and to increase a density of conductors in the slots, causing heating from electrical conductors to efficiently conduct to a laminated core and a housing. On the contrary, the thickness in insulating layers of the cross-over portions is larger than the other to assure insulation capability among the coils and to prevent conductors of the cross-over portion axially exposed from the core to air from water immersion to improve an electrolytic corrosion resistibility without disposing unnecessary space among coils.

The invention provides an easily-transported injected combustion apparatus. The easily-transported injected combustion apparatus comprises multiple layers of protective covers which are distributed along the vertical direction; each layer of the protective cover is circumferentially closed to form a flame cavity with upper and lower opening ends; in the vertical direction, the peripheral face of at least one layer of lower protective cover is circumferentially provided with several alternate first Venturi combustors; and in two layers of neighboring protective covers in the vertical direction, the radial dimension of the previous layer of the protective cover is greater than that of the next layer of the protective cover, and a slide rail structure is installed between two layers of the protective covers, so two layers of the protective covers can be relatively slid in the vertical direction.

The invention relates to a low-axial-height universal spherical pan-tilt device which comprises a fast mounting seat and a low-axial-height universal seat. The low-axial-height universal seat comprises a universal ball, an internal locking sleeve and an external locking seat, the universal ball and the internal locking sleeve are mounted in the external locking seat, the internal locking sleeve sleeves the universal ball, and the fast mounting seat is mounted on a connection seat of the universal ball. The internal locking sleeve is provided with longitudinal and transverse internal locking avoidance ports, the the external locking seat is provided with longitudinal and transverse external locking avoidance ports, left and right holding portions are formed on the internal locking sleeve, and left and right locking portions are formed on the external locking seat. When the universal ball is locked, a screw locking mechanism on the left and right locking portions is operated to enable the left and right locking portions to drive the left and right holding portions to draw together and be tightened inwards, and then the left and right holding portions tightly hold the universal ball in an attached manner, so that the angle of the fast mounting seat can be adjusted and locked arbitrarily, conveniently and rapidly. The low-axial-height universal spherical pan-tilt device is stable, reliable and ingenious and compact in structure, and the axial height and cost are reduced.

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.

A stator manufacturing method for a motor comprises a preliminary step configured to provide a strip plate having at least one wound portion on a surface thereof; a winding step configured to provide a coil unit and wind the coil unit around the at least one wound portion of the strip plate; a rolling step configured to roll up the strip plate into an unshaped sleeve having a central hole, wherein the at least one wound portion and the coil unit are located inside the central hole; and a shaping step configured to shape the unshaped sleeve into a shaped sleeve.

An optical prism that includes an interlock structure that precisely couples to a complementary structure of a refractive lens. For precision, the interlock structure may be formed at the same time and using the same technique as the optical surface of the prism. The interlock structure provides high accuracy when assembling a folded lens system by precisely aligning the object side optical surface of the lens with the image side optical surface of the prism so that the optical axis is centered in the lens. The prism may have refractive power. A portion of the object side surface may be coated with an opaque material to provide an aperture stop at that surface.

The invention relates to a brushless DC motor and a stator thereof. The stator comprises an insulating ring and a coil assembly, wherein the insulating ring is an integral-forming ring body made of insulating material; the ring body is provided with an external ring surface and an internal ring surface; at least one of the external ring surface and the internal ring surface extends to form a plurality of winding parts; and the coil assembly winds around the winding parts. Thus, the stator can be used in an outer rotor motor or inner rotor motor so as to utilize the characteristic of the stator in which the traditional silicon steel sheet is omitted; and therefore, the invention has the advantages of low manufacturing cost, convenient assembling and the like, can reduce the axial height and can enhance the running stability.

The invention discloses a mixed magnetic bearing with a horizontal-coil uniform radial pole and a low-loss outer rotor, comprising a rotor magnetic conducting ring (1) and a stator (2), wherein the rotor magnetic conducting ring (1) consists of a rotor iron core (11) sleeved with the inner cavity of an external magnetic conducting ring (12); the stator (2) consists of a stator disc (23), an upper magnetic conducting cover board (21), a lower magnetic conducting cover board (24), eight solenoid coils (22) and a stator mounting shaft (25), wherein the solenoid coils (22) are arranged horizontally and are respectively arranged at the upper side and the lower side of the stator disc (23) by taking the upper magnetic conducting cover board (21) and the lower magnetic conducting cover board (24) as coil iron cores. In the invention, the solenoid coils are arranged horizontally, take the magnetic cover boards as the coil iron cores and are separated from magnetic poles in structure, therefore, the processing and the assembly are more convenient and the magnetic poles can fully utilize circumference area to increase the bearing capability. In addition, the horizontal-coil uniform radial pole structure is more compact, thereby effectively reducing the axial height of the bearing and reducing the weight of the magnetic bearing.

The invention relates to a rotational flow gas outlet structure for a magnetic focusing hall thruster and belongs to the field of hall thrusters. The rotational flow gas outlet structure solves the problem of the poor ionization characteristic of an existing high-specific-impulse krypton working medium hall thruster. The rotational flow gas outlet structure comprises a top guide plate, a middle guide plate, a gas distributor base, an installation pillar, a gas guide tube, a discharge channel and a positive pole. The top guide plate, the middle guide plate and the gas distributor base are arranged in parallel from top to bottom and are fixedly connected to form a primary buffer chamber and a secondary buffer chamber in a laser welding manner. The primary buffer chamber and the secondary buffer chamber are coaxially arranged in the discharge channel, and the top guide plate guides neutral gas through inclined holes to rotate in the discharge channel. The positive pole is arranged on theportion, close to the top guide plate, inside the discharge channel. The gas guide tube and the installation pillar are welded to both sides of the bottom of a gas distributor. By the adoption of therotational flow gas outlet structure, the utilization rate of a working medium is increased effectively, and especially the effect on the improvement of the ionization performance of the krypton working medium is outstanding.

A ceiling fan motor with a reduced axial height includes a stator, a rotor and a light-emitting module. The stator includes an iron core and a shaft. The iron core forms an assembly opening at a central portion thereof. The rotor is rotatably coupled with an outer periphery of the shaft and includes a housing. The light-emitting module is at least partially arranged between the iron core and the shaft, or is arranged between the iron core and the housing of the rotor, along a radial direction perpendicular to the shaft.